From 6227a76761b076b7916833fe11ed6c5a4565db90 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Tue, 25 Jul 2023 10:36:34 +0800 Subject: [PATCH 001/111] fix: add deployment request example of pysdk (#3383) --- demo/python_quickstart/demo.py | 12 ++++++++++++ docs/zh/quickstart/sdk/python_sdk.md | 24 ++++++++++++++++++++---- 2 files changed, 32 insertions(+), 4 deletions(-) diff --git a/demo/python_quickstart/demo.py b/demo/python_quickstart/demo.py index 670f66439f5..d8d672476ac 100644 --- a/demo/python_quickstart/demo.py +++ b/demo/python_quickstart/demo.py @@ -21,6 +21,8 @@ import openmldb.dbapi +# dbapi接口如果执行失败,会抛出异常,本例不捕获异常,暴露错误 + # 连接集群版OpenMLDB db = openmldb.dbapi.connect(zk="127.0.0.1:2181", zkPath="/openmldb") @@ -65,6 +67,16 @@ ) print(result.fetchone()) +### 执行 Deployment +cursor.execute("DEPLOY d1 SELECT col1 FROM t1") +# dict style +result = cursor.callproc("d1", {"col1": 1000, "col2": None, "col3": None, "col4": None, "col5": None}) +print(result.fetchall()) +# tuple style +result = cursor.callproc("d1", (1001, "2023-07-20", "abc", "def", 1)) +print(result.fetchall()) +# drop deployment before drop table +cursor.execute("DROP DEPLOYMENT d1") ### 2.7 删除表 cursor.execute("DROP TABLE t1") diff --git a/docs/zh/quickstart/sdk/python_sdk.md b/docs/zh/quickstart/sdk/python_sdk.md index 570cbed2558..9a4640f7528 100644 --- a/docs/zh/quickstart/sdk/python_sdk.md +++ b/docs/zh/quickstart/sdk/python_sdk.md @@ -10,7 +10,7 @@ pip install openmldb ## 使用 OpenMLDB DBAPI -本节演示 OpenMLDB DBAPI 的基本使用。 +本节演示 OpenMLDB DBAPI 的基本使用。所有dbapi接口如果执行失败,会抛出异常`DatabaseError`,用户可自行捕获异常并处理。返回值为`Cursor`,DDL SQL 不用处理返回值,其他 SQL 的返回值处理参考下方具体示例。 ### 创建连接 @@ -70,6 +70,22 @@ result = cursor.batch_row_request("SELECT * FROM t1", ["col1","col2"], ({"col1": print(result.fetchone()) ``` +### 执行 Deployment + +请注意,执行 Deployment只有DBAPI支持,OpenMLDB SQLAlchemy无对应接口。而且,仅支持单行请求,不支持批量请求。 + +```python +cursor.execute("DEPLOY d1 SELECT col1 FROM t1") +# dict style +result = cursor.callproc("d1", {"col1": 1000, "col2": None, "col3": None, "col4": None, "col5": None}) +print(result.fetchall()) +# tuple style +result = cursor.callproc("d1", (1001, "2023-07-20", "abc", "def", 1)) +print(result.fetchall()) +# drop deployment before drop table +cursor.execute("DROP DEPLOYMENT d1") +``` + ### 删除表 删除表 `t1`: @@ -94,7 +110,7 @@ cursor.close() ## 使用 OpenMLDB SQLAlchemy -本节演示通过 OpenMLDB SQLAlchemy 使用 Python SDK。 +本节演示通过 OpenMLDB SQLAlchemy 使用 Python SDK。同样的,所有dbapi接口如果执行失败,会抛出异常`DatabaseError`,用户可自行捕获异常并处理。返回值处理参考SQLAlchemy标准。 ### 创建连接 @@ -166,7 +182,7 @@ try: for row in rs: print(row) rs = connection.execute("SELECT * FROM t1 WHERE col3 = ?;", ('hefei')) - rs = connection.execute("SELECT * FROM t1 WHERE col3 = ?;",[('hefei'), ('shanghai')]) + rs = connection.execute("SELECT * FROM t1 WHERE col3 = ?;", [('hefei'), ('shanghai')]) except Exception as e: print(e) ``` @@ -210,7 +226,7 @@ OpenMLDB Python SDK 支持了 Notebook magic function 拓展,使用以下语 ```python import openmldb -db = openmldb.dbapi.connect(database='demo_db',zk='0.0.0.0:2181',zkPath='/openmldb') +db = openmldb.dbapi.connect(database='demo_db', zk='0.0.0.0:2181', zkPath='/openmldb') openmldb.sql_magic.register(db) ``` From 03a73112c127b8f886bcc6e068494f313d35d572 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Tue, 25 Jul 2023 10:43:30 +0800 Subject: [PATCH 002/111] build(deps-dev): bump pygments from 2.13.0 to 2.15.0 in /docs (#3385) Bumps [pygments](https://github.com/pygments/pygments) from 2.13.0 to 2.15.0. - [Release notes](https://github.com/pygments/pygments/releases) - [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES) - [Commits](https://github.com/pygments/pygments/compare/2.13.0...2.15.0) --- updated-dependencies: - dependency-name: pygments dependency-type: indirect ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- docs/poetry.lock | 50 +++++------------------------------------------- 1 file changed, 5 insertions(+), 45 deletions(-) diff --git a/docs/poetry.lock b/docs/poetry.lock index a29c0ded014..01f5d11fa68 100644 --- a/docs/poetry.lock +++ b/docs/poetry.lock @@ -1,10 +1,9 @@ -# This file is automatically @generated by Poetry and should not be changed by hand. +# This file is automatically @generated by Poetry 1.5.1 and should not be changed by hand. [[package]] name = "alabaster" version = "0.7.12" description = "A configurable sidebar-enabled Sphinx theme" -category = "dev" optional = false python-versions = "*" files = [ @@ -16,7 +15,6 @@ files = [ name = "babel" version = "2.10.3" description = "Internationalization utilities" -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -31,7 +29,6 @@ pytz = ">=2015.7" name = "beautifulsoup4" version = "4.11.1" description = "Screen-scraping library" -category = "dev" optional = false python-versions = ">=3.6.0" files = [ @@ -50,7 +47,6 @@ lxml = ["lxml"] name = "certifi" version = "2022.12.7" description = "Python package for providing Mozilla's CA Bundle." -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -62,7 +58,6 @@ files = [ name = "charset-normalizer" version = "2.1.1" description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet." -category = "dev" optional = false python-versions = ">=3.6.0" files = [ @@ -77,7 +72,6 @@ unicode-backport = ["unicodedata2"] name = "colorama" version = "0.4.5" description = "Cross-platform colored terminal text." -category = "dev" optional = false python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*" files = [ @@ -89,7 +83,6 @@ files = [ name = "docutils" version = "0.17.1" description = "Docutils -- Python Documentation Utilities" -category = "dev" optional = false python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*" files = [ @@ -101,7 +94,6 @@ files = [ name = "idna" version = "3.3" description = "Internationalized Domain Names in Applications (IDNA)" -category = "dev" optional = false python-versions = ">=3.5" files = [ @@ -113,7 +105,6 @@ files = [ name = "imagesize" version = "1.4.1" description = "Getting image size from png/jpeg/jpeg2000/gif file" -category = "dev" optional = false python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*" files = [ @@ -125,7 +116,6 @@ files = [ name = "importlib-metadata" version = "4.12.0" description = "Read metadata from Python packages" -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -145,7 +135,6 @@ testing = ["flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pyfakefs name = "jinja2" version = "3.1.2" description = "A very fast and expressive template engine." -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -163,7 +152,6 @@ i18n = ["Babel (>=2.7)"] name = "linkify-it-py" version = "1.0.3" description = "Links recognition library with FULL unicode support." -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -184,7 +172,6 @@ test = ["coverage", "pytest", "pytest-cov"] name = "markdown-it-py" version = "2.2.0" description = "Python port of markdown-it. Markdown parsing, done right!" -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -209,7 +196,6 @@ testing = ["coverage", "pytest", "pytest-cov", "pytest-regressions"] name = "markupsafe" version = "2.1.1" description = "Safely add untrusted strings to HTML/XML markup." -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -259,7 +245,6 @@ files = [ name = "mdit-py-plugins" version = "0.3.0" description = "Collection of plugins for markdown-it-py" -category = "dev" optional = false python-versions = "~=3.6" files = [ @@ -279,7 +264,6 @@ testing = ["coverage", "pytest (>=3.6,<4)", "pytest-cov", "pytest-regressions"] name = "mdurl" version = "0.1.2" description = "Markdown URL utilities" -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -291,7 +275,6 @@ files = [ name = "myst-parser" version = "0.18.0" description = "An extended commonmark compliant parser, with bridges to docutils & sphinx." -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -319,7 +302,6 @@ testing = ["beautifulsoup4", "coverage[toml]", "pytest (>=6,<7)", "pytest-cov", name = "packaging" version = "21.3" description = "Core utilities for Python packages" -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -334,7 +316,6 @@ pyparsing = ">=2.0.2,<3.0.5 || >3.0.5" name = "pydata-sphinx-theme" version = "0.8.1" description = "Bootstrap-based Sphinx theme from the PyData community" -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -356,14 +337,13 @@ test = ["pydata-sphinx-theme[doc]", "pytest"] [[package]] name = "pygments" -version = "2.13.0" +version = "2.15.0" description = "Pygments is a syntax highlighting package written in Python." -category = "dev" optional = false -python-versions = ">=3.6" +python-versions = ">=3.7" files = [ - {file = "Pygments-2.13.0-py3-none-any.whl", hash = "sha256:f643f331ab57ba3c9d89212ee4a2dabc6e94f117cf4eefde99a0574720d14c42"}, - {file = "Pygments-2.13.0.tar.gz", hash = "sha256:56a8508ae95f98e2b9bdf93a6be5ae3f7d8af858b43e02c5a2ff083726be40c1"}, + {file = "Pygments-2.15.0-py3-none-any.whl", hash = "sha256:77a3299119af881904cd5ecd1ac6a66214b6e9bed1f2db16993b54adede64094"}, + {file = "Pygments-2.15.0.tar.gz", hash = "sha256:f7e36cffc4c517fbc252861b9a6e4644ca0e5abadf9a113c72d1358ad09b9500"}, ] [package.extras] @@ -373,7 +353,6 @@ plugins = ["importlib-metadata"] name = "pyparsing" version = "3.0.9" description = "pyparsing module - Classes and methods to define and execute parsing grammars" -category = "dev" optional = false python-versions = ">=3.6.8" files = [ @@ -388,7 +367,6 @@ diagrams = ["jinja2", "railroad-diagrams"] name = "pytz" version = "2022.2.1" description = "World timezone definitions, modern and historical" -category = "dev" optional = false python-versions = "*" files = [ @@ -400,7 +378,6 @@ files = [ name = "pyyaml" version = "6.0" description = "YAML parser and emitter for Python" -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -450,7 +427,6 @@ files = [ name = "requests" version = "2.31.0" description = "Python HTTP for Humans." -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -472,7 +448,6 @@ use-chardet-on-py3 = ["chardet (>=3.0.2,<6)"] name = "snowballstemmer" version = "2.2.0" description = "This package provides 29 stemmers for 28 languages generated from Snowball algorithms." -category = "dev" optional = false python-versions = "*" files = [ @@ -484,7 +459,6 @@ files = [ name = "soupsieve" version = "2.3.2.post1" description = "A modern CSS selector implementation for Beautiful Soup." -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -496,7 +470,6 @@ files = [ name = "sphinx" version = "4.5.0" description = "Python documentation generator" -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -532,7 +505,6 @@ test = ["cython", "html5lib", "pytest", "pytest-cov", "typed-ast"] name = "sphinx-book-theme" version = "0.3.3" description = "A clean book theme for scientific explanations and documentation with Sphinx" -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -554,7 +526,6 @@ test = ["beautifulsoup4 (>=4.6.1,<5)", "coverage", "myst-nb (>=0.13.2,<0.14.0)", name = "sphinx-copybutton" version = "0.5.0" description = "Add a copy button to each of your code cells." -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -573,7 +544,6 @@ rtd = ["ipython", "myst-nb", "sphinx", "sphinx-book-theme"] name = "sphinx-multiversion" version = "0.2.4" description = "Add support for multiple versions to sphinx" -category = "dev" optional = false python-versions = "*" files = [ @@ -588,7 +558,6 @@ sphinx = ">=2.1" name = "sphinxcontrib-applehelp" version = "1.0.2" description = "sphinxcontrib-applehelp is a sphinx extension which outputs Apple help books" -category = "dev" optional = false python-versions = ">=3.5" files = [ @@ -604,7 +573,6 @@ test = ["pytest"] name = "sphinxcontrib-devhelp" version = "1.0.2" description = "sphinxcontrib-devhelp is a sphinx extension which outputs Devhelp document." -category = "dev" optional = false python-versions = ">=3.5" files = [ @@ -620,7 +588,6 @@ test = ["pytest"] name = "sphinxcontrib-htmlhelp" version = "2.0.0" description = "sphinxcontrib-htmlhelp is a sphinx extension which renders HTML help files" -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -636,7 +603,6 @@ test = ["html5lib", "pytest"] name = "sphinxcontrib-jsmath" version = "1.0.1" description = "A sphinx extension which renders display math in HTML via JavaScript" -category = "dev" optional = false python-versions = ">=3.5" files = [ @@ -651,7 +617,6 @@ test = ["flake8", "mypy", "pytest"] name = "sphinxcontrib-qthelp" version = "1.0.3" description = "sphinxcontrib-qthelp is a sphinx extension which outputs QtHelp document." -category = "dev" optional = false python-versions = ">=3.5" files = [ @@ -667,7 +632,6 @@ test = ["pytest"] name = "sphinxcontrib-serializinghtml" version = "1.1.5" description = "sphinxcontrib-serializinghtml is a sphinx extension which outputs \"serialized\" HTML files (json and pickle)." -category = "dev" optional = false python-versions = ">=3.5" files = [ @@ -683,7 +647,6 @@ test = ["pytest"] name = "typing-extensions" version = "4.3.0" description = "Backported and Experimental Type Hints for Python 3.7+" -category = "dev" optional = false python-versions = ">=3.7" files = [ @@ -695,7 +658,6 @@ files = [ name = "uc-micro-py" version = "1.0.1" description = "Micro subset of unicode data files for linkify-it-py projects." -category = "dev" optional = false python-versions = ">=3.6" files = [ @@ -710,7 +672,6 @@ test = ["coverage", "pytest", "pytest-cov"] name = "urllib3" version = "1.26.12" description = "HTTP library with thread-safe connection pooling, file post, and more." -category = "dev" optional = false python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, <4" files = [ @@ -727,7 +688,6 @@ socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"] name = "zipp" version = "3.8.1" description = "Backport of pathlib-compatible object wrapper for zip files" -category = "dev" optional = false python-versions = ">=3.7" files = [ From 46b9d06eab2bb765a454f822385645ae7aac478b Mon Sep 17 00:00:00 2001 From: HuangWei Date: Tue, 25 Jul 2023 17:46:16 +0800 Subject: [PATCH 003/111] fix: library load exception msg (#3384) --- .../java/com/_4paradigm/openmldb/common/LibraryLoader.java | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/common/LibraryLoader.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/common/LibraryLoader.java index 47226cae2de..d0d395f6e52 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/common/LibraryLoader.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/common/LibraryLoader.java @@ -82,8 +82,9 @@ synchronized public static void loadLibrary(String libraryPath) { logger.error(String.format("Fail to find %s in resources", libraryPath)); } } catch (IOException | UnsatisfiedLinkError e) { - logger.error(String.format("Error while load %s from local resource", libraryPath), e); - throw new UnsatisfiedLinkError(String.format("Fail to load library %s", libraryPath)); + String msg = String.format("Error while load %s from local resource", libraryPath); + logger.error(msg, e); + throw new RuntimeException(msg, e); } } From f426165f60fe5342e9e538e791a291c11a0babcf Mon Sep 17 00:00:00 2001 From: HuangWei Date: Tue, 25 Jul 2023 22:24:10 +0800 Subject: [PATCH 004/111] fix: tablet rpc return, tool log, link https (#3392) --- .../integration/online_datasources/kafka_connector_demo.md | 4 ++-- docs/zh/use_case/JD_recommendation.md | 2 +- src/tablet/tablet_impl.cc | 1 + tools/openmldb_ops.py | 6 +++--- tools/tool.py | 4 ++-- 5 files changed, 9 insertions(+), 8 deletions(-) diff --git a/docs/zh/integration/online_datasources/kafka_connector_demo.md b/docs/zh/integration/online_datasources/kafka_connector_demo.md index fbe16a8e021..0d6ef42d266 100644 --- a/docs/zh/integration/online_datasources/kafka_connector_demo.md +++ b/docs/zh/integration/online_datasources/kafka_connector_demo.md @@ -14,8 +14,8 @@ OpenMLDB Kafka Connector实现见[extensions/kafka-connect-jdbc](https://github. ### 下载与准备 - 你需要下载kafka,请点击[kafka官网下载](https://kafka.apache.org/downloads)下载kafka_2.13-3.1.0.tgz。 -- 你需要下载connector包以及依赖,请点击[kafka-connect-jdbc.tgz](http://openmldb.ai/download/kafka-connector/kafka-connect-jdbc.tgz)。 -- 你需要下载本文中所需要的配置与脚本等文件,请点击[kafka_demo_files.tgz](http://openmldb.ai/download/kafka-connector/kafka_demo_files.tgz)下载。 +- 你需要下载connector包以及依赖,请点击[kafka-connect-jdbc.tgz](https://openmldb.ai/download/kafka-connector/kafka-connect-jdbc.tgz)。 +- 你需要下载本文中所需要的配置与脚本等文件,请点击[kafka_demo_files.tgz](https://openmldb.ai/download/kafka-connector/kafka_demo_files.tgz)下载。 本文将使用docker方式启动OpenMLDB,所以无需单独下载OpenMLDB。并且,kafka与connector的启动,都可以在同一个容器中进行。 diff --git a/docs/zh/use_case/JD_recommendation.md b/docs/zh/use_case/JD_recommendation.md index 7aff165a20c..143666d58ec 100644 --- a/docs/zh/use_case/JD_recommendation.md +++ b/docs/zh/use_case/JD_recommendation.md @@ -34,7 +34,7 @@ ls jd-recommendation/ export demodir=/jd-recommendation/ ``` -本例仅使用小数据集做演示。如果你想要使用全量数据集,请下载 [JD_data](http://openmldb.ai/download/jd-recommendation/JD_data.tgz)。 +本例仅使用小数据集做演示。如果你想要使用全量数据集,请下载 [JD_data](https://openmldb.ai/download/jd-recommendation/JD_data.tgz)。 ### 安装 OneFlow 工具包 diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index ffed0a9d44e..75ea3a72d5e 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -3507,6 +3507,7 @@ void TabletImpl::GetTableFollower(RpcController* controller, const ::openmldb::a if (info_map.empty()) { response->set_msg("has no follower"); response->set_code(::openmldb::base::ReturnCode::kNoFollower); + return; } for (const auto& kv : info_map) { ::openmldb::api::FollowerInfo* follower_info = response->add_follower_info(); diff --git a/tools/openmldb_ops.py b/tools/openmldb_ops.py index f430b08a282..399bdc3605e 100644 --- a/tools/openmldb_ops.py +++ b/tools/openmldb_ops.py @@ -144,7 +144,7 @@ def RecoverTable(executor : Executor, db, table_name) -> Status: log.info(f"recover {table_name} in {db}") status, table_info = executor.GetTableInfo(db, table_name) if not status.OK(): - log.warn(f"get table info failed. msg is {status.GetMsg()}") + log.warning(f"get table info failed. msg is {status.GetMsg()}") return Status(-1, f"get table info failed. msg is {status.GetMsg()}") partition_dict = executor.ParseTableInfo(table_info) endpoints = set() @@ -154,7 +154,7 @@ def RecoverTable(executor : Executor, db, table_name) -> Status: for endpoint in endpoints: status, result = executor.GetTableStatus(endpoint) if not status.OK(): - log.warn(f"get table status failed. msg is {status.GetMsg()}") + log.warning(f"get table status failed. msg is {status.GetMsg()}") return Status(-1, f"get table status failed. msg is {status.GetMsg()}") endpoint_status[endpoint] = result max_pid = int(table_info[-1][2]) @@ -180,7 +180,7 @@ def RecoverTable(executor : Executor, db, table_name) -> Status: if status.OK(): log.info(f"{table_name} in {db} recover success") else: - log.warn(status.GetMsg()) + log.warning(status.GetMsg()) return status def RecoverData(executor : Executor): diff --git a/tools/tool.py b/tools/tool.py index 3759518fd82..358751b4db9 100644 --- a/tools/tool.py +++ b/tools/tool.py @@ -212,10 +212,10 @@ def GetTableStatus(self, endpoint, tid = '', pid = '') -> tuple([Status, Dict]): cmd.append("--cmd=gettablestatus " + tid + " " + pid) status, output = self.RunWithRetuncode(cmd) if not status.OK(): - log.error("gettablestatus failed") + log.error("gettablestatus failed on " + str(cmd)) return status, None if "failed" in output: - log.error("gettablestatus failed") + log.error("gettablestatus failed on " + str(cmd)) return Status(-1, output), None result = {} for record in self.ParseResult(output): From 1db10b01e21852469d285d26a1702b39d9628180 Mon Sep 17 00:00:00 2001 From: emo-coder <122784380+emo-coder@users.noreply.github.com> Date: Wed, 26 Jul 2023 09:39:55 +0800 Subject: [PATCH 005/111] feat: unsupport create table like when database is not found (#3379) --- src/sdk/db_sdk.cc | 9 +++++++++ src/sdk/db_sdk.h | 1 + src/sdk/sql_cluster_router.cc | 15 +++++++++++---- src/sdk/sql_cluster_test.cc | 7 +++++++ 4 files changed, 28 insertions(+), 4 deletions(-) diff --git a/src/sdk/db_sdk.cc b/src/sdk/db_sdk.cc index 6b78d4069ec..c04e86d4f03 100644 --- a/src/sdk/db_sdk.cc +++ b/src/sdk/db_sdk.cc @@ -426,6 +426,15 @@ bool ClusterSDK::BuildCatalog() { return UpdateCatalog(table_datas, sp_datas); } +std::vector DBSDK::GetAllDbs() { + std::lock_guard<::openmldb::base::SpinMutex> lock(mu_); + std::vector all_dbs; + for (auto db_name_iter = table_to_tablets_.begin(); db_name_iter != table_to_tablets_.end(); db_name_iter++) { + all_dbs.push_back(db_name_iter->first); + } + return all_dbs; +} + uint32_t DBSDK::GetTableId(const std::string& db, const std::string& tname) { auto table_handler = GetCatalog()->GetTable(db, tname); auto* sdk_table_handler = dynamic_cast<::openmldb::catalog::SDKTableHandler*>(table_handler.get()); diff --git a/src/sdk/db_sdk.h b/src/sdk/db_sdk.h index 48bb1ea80ab..71e3e321241 100644 --- a/src/sdk/db_sdk.h +++ b/src/sdk/db_sdk.h @@ -77,6 +77,7 @@ class DBSDK { std::shared_ptr<::openmldb::client::TaskManagerClient> GetTaskManagerClient(); + std::vector GetAllDbs(); uint32_t GetTableId(const std::string& db, const std::string& tname); std::shared_ptr<::openmldb::nameserver::TableInfo> GetTableInfo(const std::string& db, const std::string& tname); std::vector> GetTables(const std::string& db); diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index c125b554e51..ca8ac91e8fd 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -1930,11 +1930,12 @@ base::Status SQLClusterRouter::HandleSQLCreateTable(hybridse::node::CreatePlanNo return base::Status(base::ReturnCode::kSQLCmdRunError, "fail to execute plan : null pointer"); } - if (create_node->like_clause_ == nullptr) { - std::string db_name = create_node->GetDatabase().empty() ? db : create_node->GetDatabase(); - if (db_name.empty()) { - return base::Status(base::ReturnCode::kSQLCmdRunError, "ERROR: Please use database first"); + std::string db_name = create_node->GetDatabase().empty() ? db : create_node->GetDatabase(); + if (db_name.empty()) { + return base::Status(base::ReturnCode::kSQLCmdRunError, "ERROR: Please use database first"); } + + if (create_node->like_clause_ == nullptr) { ::openmldb::nameserver::TableInfo table_info; table_info.set_db(db_name); @@ -1955,6 +1956,12 @@ base::Status SQLClusterRouter::HandleSQLCreateTable(hybridse::node::CreatePlanNo return base::Status(base::ReturnCode::kSQLCmdRunError, msg); } } else { + auto dbs = cluster_sdk_->GetAllDbs(); + auto it = std::find(dbs.begin(), dbs.end(), db_name); + if (it == dbs.end()) { + return base::Status(base::ReturnCode::kSQLCmdRunError, "fail to create, database does not exist!"); + } + LOG(WARNING) << "CREATE TABLE LIKE will run in offline job, please wait."; std::map config; diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index 8115124881c..6d794692846 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -98,6 +98,13 @@ class SQLClusterDDLTest : public SQLClusterTest { std::string db; }; +TEST_F(SQLClusterDDLTest, TestCreateTableLike) { + ::hybridse::sdk::Status status; + + ASSERT_FALSE(router->ExecuteDDL(db, "create table db2.tb like hive 'hive://db.tb';", &status)); + ASSERT_FALSE(router->ExecuteDDL(db, "drop table db2.tb;", &status)); +} + TEST_F(SQLClusterDDLTest, TestIfExists) { std::string name = "test" + GenRand(); ::hybridse::sdk::Status status; From 91d36ecc9f6f693df7bda5efff5ec1e5050fc1a5 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 26 Jul 2023 10:44:13 +0800 Subject: [PATCH 006/111] build: fix py version for training and compose test (#3391) --- demo/Dockerfile | 2 +- demo/docker-compose.test.yml | 29 ++++++++++++++++++++--------- 2 files changed, 21 insertions(+), 10 deletions(-) diff --git a/demo/Dockerfile b/demo/Dockerfile index ee3eea1c088..354fe86bd66 100644 --- a/demo/Dockerfile +++ b/demo/Dockerfile @@ -16,7 +16,7 @@ RUN apt-get update \ && rm -rf /var/lib/apt/lists/* RUN if [ -f "/additions/pypi.txt" ] ; then pip config set global.index-url $(cat /additions/pypi.txt) ; fi -RUN pip install --no-cache-dir py4j==0.10.9 numpy lightgbm tornado requests pandas xgboost==1.4.2 +RUN pip install --no-cache-dir py4j==0.10.9 numpy lightgbm==3 tornado requests pandas==1.5 xgboost==1.4.2 COPY init.sh /work/ COPY predict-taxi-trip-duration/script /work/taxi-trip/ diff --git a/demo/docker-compose.test.yml b/demo/docker-compose.test.yml index a969a97e461..9fd12df1b35 100644 --- a/demo/docker-compose.test.yml +++ b/demo/docker-compose.test.yml @@ -5,44 +5,54 @@ services: context: . volumes: - ./jd-recommendation:/work/oneflow_demo - - ./job_checker.py:/work/job_checker.py - ./quick_start:/work/quick_start # no mvn in image, so build the java demo outside and mount the jar - - ./java_quickstart/demo/target/demo-1.0-SNAPSHOT.jar:/work/java_quickstart/demo-1.0-SNAPSHOT.jar + - ./java_quickstart/demo/target:/work/java_quickstart - ./python_quickstart:/work/python_quickstart + - ./cxx_quickstart:/work/cxx_quickstart # You can add `cat ` here(e.g. `cat /work/openmldb/taskmanager/bin/logs/job_1_error.log`, cat `predict.log`), to check the log info. # No need to docker-compose build again. But if you modified the Dockerfile, must rebuild it. command: - /bin/bash - - -cx + - -ecx # -e, otherwise, the command may not exit when 'exit' - | ./init.sh sleep 5 # quickstart test cd /work/quick_start /work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client < cluster_quickstart.sql - python3 request_test.py + python3 request_test.py || exit -1 # java/python sdk, no jar in ci, so we should check the java result manually cd /work/java_quickstart + # if no jar, download it + if [ ! -f demo-1.0-SNAPSHOT.jar ]; then + curl -SLO https://openmldb.ai/download/testing/demo-1.0-SNAPSHOT.jar + fi java -cp demo-1.0-SNAPSHOT.jar com.openmldb.demo.App cd /work/python_quickstart python3 demo.py || exit -1 + cd /work/cxx_quickstart + if [ ! -f demo ]; then + curl -SLO https://openmldb.ai/download/testing/demo + fi + chmod +x demo + ./demo # taxi use case test cd /work/taxi-trip /work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client < taxi.sql - python3 train.py /tmp/feature_data /tmp/model.txt + python3 train.py /tmp/feature_data /tmp/model.txt || exit -1 # port 8887 ./start_predict_server.sh 127.0.0.1:9080 /tmp/model.txt - python3 predict.py || (cat /tmp/p.log && exit -1) + python3 predict.py || ( cat /tmp/p.log && exit -1 ) # talkingdata demo test cd /work/talkingdata # port 8881 python3 predict_server.py --no-init > predict.log 2>&1 & - python3 train_and_serve.py - python3 predict.py || (cat predict.log && exit -1) + python3 train_and_serve.py || exit -1 + python3 predict.py || ( cat predict.log && exit -1 ) # oneflow sql test cd /work/oneflow_demo/sql_scripts @@ -51,7 +61,8 @@ services: # check deployment, jobs will be checked by openmldb_tool curl http://127.0.0.1:9080/dbs/JD_db/deployments/demo | grep "ok" || exit -1 - # open it after new diag tool released, or you can test in local by USE_ADD_WHL + # TODO(hw): udf test + cd /work openmldb_tool status --diff -f /work/openmldb/conf/hosts openmldb_tool inspect From 3d790513489a468790f2ba00508cf289c1f3ec75 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 26 Jul 2023 10:45:03 +0800 Subject: [PATCH 007/111] fix: external udf error handle (#3362) --- docs/zh/openmldb_sql/ddl/DROP_FUNCTION.md | 5 ++- hybridse/src/udf/udf_library.cc | 14 ++++---- .../udf/ExternalFunctionManager.java | 13 ++++--- src/base/proto_util.h | 8 +++++ src/nameserver/name_server_impl.cc | 34 ++++++++----------- src/sdk/sql_cluster_router.cc | 19 +++++++---- src/tablet/tablet_impl.cc | 7 ++-- 7 files changed, 56 insertions(+), 44 deletions(-) diff --git a/docs/zh/openmldb_sql/ddl/DROP_FUNCTION.md b/docs/zh/openmldb_sql/ddl/DROP_FUNCTION.md index 1445d4384fc..2915698eb7a 100644 --- a/docs/zh/openmldb_sql/ddl/DROP_FUNCTION.md +++ b/docs/zh/openmldb_sql/ddl/DROP_FUNCTION.md @@ -3,7 +3,7 @@ **Syntax** ```sql -DROP FUNCTION FunctionName +DROP FUNCTION [IF EXISTS] FunctionName ``` **Example** @@ -13,3 +13,6 @@ DROP FUNCTION FunctionName DROP FUNCTION cut2; ``` +```{note} +删除函数实际是分布式的删除,会删除所有节点上的函数。如果某个节点删除失败,不会终止整个删除过程。我们只在整体层面,或者说是元数据层面上保证函数的唯一性,底层节点上函数可以重复创建,所以,单个节点函数删除失败不会影响后续的创建操作。但还是建议查询节点上删除失败留下的WARN日志,查看具体的删除失败的原因。 +``` diff --git a/hybridse/src/udf/udf_library.cc b/hybridse/src/udf/udf_library.cc index 85dc4ce9641..205563c69e8 100644 --- a/hybridse/src/udf/udf_library.cc +++ b/hybridse/src/udf/udf_library.cc @@ -256,29 +256,29 @@ Status UdfLibrary::RemoveDynamicUdf(const std::string& name, const std::vector lock(mu_); if (table_.erase(canonical_name) <= 0) { - return Status(kCodegenError, "can not find the function " + canonical_name); + return Status(kCodegenError, "udaf function not present in udf table: " + canonical_name); } if (external_symbols_.erase(lib_name + ".init") <= 0) { - return Status(kCodegenError, "can not find the init function " + lib_name); + return Status(kCodegenError, "can not find the init function in symbol table: " + lib_name); } if (external_symbols_.erase(lib_name + ".update") <= 0) { - return Status(kCodegenError, "can not find the update function " + lib_name); + return Status(kCodegenError, "can not find the update function in symbol table: " + lib_name); } if (external_symbols_.erase(lib_name + ".output") <= 0) { - return Status(kCodegenError, "can not find the output function " + lib_name); + return Status(kCodegenError, "can not find the output function in symbol table: " + lib_name); } } else { std::lock_guard lock(mu_); if (table_.erase(canonical_name) <= 0) { - return Status(kCodegenError, "can not find the function " + canonical_name); + return Status(kCodegenError, "udf function not present in udf table: " + canonical_name); } if (external_symbols_.erase(lib_name) <= 0) { - return Status(kCodegenError, "can not find the function " + lib_name); + return Status(kCodegenError, "can not find the function in symbol table: " + lib_name); } } return lib_manager_.RemoveHandler(file); diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/udf/ExternalFunctionManager.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/udf/ExternalFunctionManager.java index b89d92af130..00bc94e9fb4 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/udf/ExternalFunctionManager.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/udf/ExternalFunctionManager.java @@ -37,14 +37,13 @@ static public String getLibraryFilePath(String libraryFileName) { static public void addFunction(String fnName, String libraryFileName) throws Exception { if (hasFunction(fnName)) { - logger.warn(String.format("The function %s exists, ignore adding function", fnName)); - } else { - String libraryFilePath = getLibraryFilePath(libraryFileName); - if(!(new File(libraryFilePath).exists())) { - throw new Exception("The library file does not exist in path: " + libraryFilePath); - } - nameFileMap.put(fnName, libraryFileName); + logger.warn(String.format("The function %s exists, replace", fnName)); + } + String libraryFilePath = getLibraryFilePath(libraryFileName); + if(!(new File(libraryFilePath).exists())) { + throw new Exception("The library file does not exist in path: " + libraryFilePath); } + nameFileMap.put(fnName, libraryFileName); } static public void dropFunction(String fnName) { diff --git a/src/base/proto_util.h b/src/base/proto_util.h index be755642e44..1652d3ca9d8 100644 --- a/src/base/proto_util.h +++ b/src/base/proto_util.h @@ -39,6 +39,14 @@ void SetResponseStatus(int code, const std::string& msg, Response* response) { } } +/// @brief Set code and msg, and log it at warning. Must be not ok, skip check code +#define SET_RESP_AND_WARN(s, c, m) \ + do { \ + (s)->set_code(static_cast(c)); \ + (s)->set_msg((m)); \ + LOG(WARNING) << "Set resp: " << (s)->code() << ", " << (s)->msg(); \ + } while (0) + template void SetResponseStatus(const Status& status, Response* response) { if (response != nullptr) { diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index f193854701b..550558b6132 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -1118,8 +1118,6 @@ void NameServerImpl::UpdateTablets(const std::vector& endpoints) { } } - - auto it = tablet_endpoints.begin(); for (; it != tablet_endpoints.end(); ++it) { alive.insert(*it); @@ -3716,8 +3714,6 @@ void NameServerImpl::CreateTable(RpcController* controller, const CreateTableReq } } - - bool NameServerImpl::SaveTableInfo(std::shared_ptr table_info) { std::string table_value; table_info->SerializeToString(&table_value); @@ -9733,16 +9729,16 @@ void NameServerImpl::CreateFunction(RpcController* controller, const CreateFunct } auto tablets = GetAllHealthTablet(); std::vector> succ_tablets; + std::string error_msgs; + // try create on every tablet for (const auto& tablet : tablets) { std::string msg; if (!tablet->client_->CreateFunction(request->fun(), &msg)) { - PDLOG(WARNING, "create function failed. endpoint %s, msg %s", - tablet->client_->GetEndpoint().c_str(), msg.c_str()); - response->set_msg(msg); - break; + error_msgs.append("create function failed on " + tablet->client_->GetEndpoint() + ", reason: " + msg + ";"); } succ_tablets.emplace_back(tablet); } + // rollback and return, it's ok if tablet rollback failed if (succ_tablets.size() < tablets.size()) { for (const auto& tablet : succ_tablets) { std::string msg; @@ -9751,6 +9747,7 @@ void NameServerImpl::CreateFunction(RpcController* controller, const CreateFunct } PDLOG(INFO, "drop function on endpoint %s", tablet->client_->GetEndpoint().c_str()); } + SET_RESP_AND_WARN(response, base::ReturnCode::kCreateFunctionFailedOnTablet, error_msgs); return; } auto fun = std::make_shared<::openmldb::common::ExternalFun>(request->fun()); @@ -9759,8 +9756,7 @@ void NameServerImpl::CreateFunction(RpcController* controller, const CreateFunct fun->SerializeToString(&value); std::string fun_node = zk_path_.external_function_path_ + "/" + fun->name(); if (!zk_client_->CreateNode(fun_node, value)) { - PDLOG(WARNING, "create function node[%s] failed! value[%s] value_size[%u]", - fun_node.c_str(), value.c_str(), value.length()); + SET_RESP_AND_WARN(response, base::ReturnCode::kCreateZkFailed, "create function on zk failed: " + fun_node); return; } } @@ -9771,9 +9767,8 @@ void NameServerImpl::CreateFunction(RpcController* controller, const CreateFunct } void NameServerImpl::DropFunction(RpcController* controller, const DropFunctionRequest* request, - DropFunctionResponse* response, Closure* done) { + DropFunctionResponse* response, Closure* done) { brpc::ClosureGuard done_guard(done); - response->set_code(base::kRPCRunError); std::shared_ptr<::openmldb::common::ExternalFun> fun; { std::lock_guard lock(mu_); @@ -9786,27 +9781,26 @@ void NameServerImpl::DropFunction(RpcController* controller, const DropFunctionR if (request->if_exists()) { base::SetResponseOK(response); } else { - response->set_msg("fun does not exist"); - LOG(WARNING) << request->name() << " does not exist"; + SET_RESP_AND_WARN(response, base::ReturnCode::kError, "fun does not exist in nameserver meta"); } return; } auto tablets = GetAllHealthTablet(); for (const auto& tablet : tablets) { std::string msg; + // if drop function failed on tablet, treat it as success(only log warning) if (!tablet->client_->DropFunction(*fun, &msg)) { - response->set_msg(msg); - LOG(WARNING) << "drop function failed on " << tablet->client_->GetEndpoint(); - return; + LOG(WARNING) << "drop function failed on " << tablet->client_->GetEndpoint() << ", reason: " << msg; } } if (IsClusterMode()) { std::string fun_node = zk_path_.external_function_path_ + "/" + fun->name(); if (!zk_client_->DeleteNode(fun_node)) { - PDLOG(WARNING, "delete function node[%s] failed", fun_node.c_str()); - response->set_msg("delete function node failed"); + // if drop zk node failed, the whole drop function failed + SET_RESP_AND_WARN(response, base::ReturnCode::kDelZkFailed, "delete function zk node failed:" + fun_node); return; } + // func in taskmanager is deleted by client, not in here } base::SetResponseOK(response); LOG(INFO) << "drop function " << request->name() << " success"; @@ -9815,7 +9809,7 @@ void NameServerImpl::DropFunction(RpcController* controller, const DropFunctionR } void NameServerImpl::ShowFunction(RpcController* controller, const ShowFunctionRequest* request, - ShowFunctionResponse* response, Closure* done) { + ShowFunctionResponse* response, Closure* done) { brpc::ClosureGuard done_guard(done); std::lock_guard lock(mu_); if (request->has_name() && !request->name().empty()) { diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index ca8ac91e8fd..2c7f473d6eb 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -1674,18 +1674,22 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h std::string name = cmd_node->GetArgs()[0]; auto base_status = ns_ptr->DropFunction(name, cmd_node->IsIfExists()); if (base_status.OK()) { + *status = {}; + // zk deleted already, remove from cluster_sdk, only failed when func not exist in sdk, ignore error cluster_sdk_->RemoveExternalFun(name); + // drop function from taskmanager, ignore error, taskmanager can recreate the function auto taskmanager_client = cluster_sdk_->GetTaskManagerClient(); if (taskmanager_client) { base_status = taskmanager_client->DropFunction(name, GetJobTimeout()); if (!base_status.OK()) { - *status = {StatusCode::kCmdError, base_status.msg}; + LOG(WARNING) << "drop function " << name << " failed: [" << base_status.GetCode() << "] " + << base_status.GetMsg(); return {}; } } - *status = {}; } else { - *status = {StatusCode::kCmdError, base_status.msg}; + // not exists or nameserver delete failed on zk + APPEND_FROM_BASE_AND_WARN(status, base_status, "drop function failed"); } return {}; } @@ -3331,22 +3335,25 @@ hybridse::sdk::Status SQLClusterRouter::HandleCreateFunction(const hybridse::nod } fun->set_arg_nullable(iter->second->GetBool()); } + hybridse::sdk::Status st; if (cluster_sdk_->IsClusterMode()) { auto taskmanager_client = cluster_sdk_->GetTaskManagerClient(); if (taskmanager_client) { auto ret = taskmanager_client->CreateFunction(fun, GetJobTimeout()); if (!ret.OK()) { - return {StatusCode::kCmdError, ret.msg}; + APPEND_FROM_BASE_AND_WARN(&st, ret, "create function failed on taskmanager"); + return st; } } } auto ns = cluster_sdk_->GetNsClient(); auto ret = ns->CreateFunction(*fun); if (!ret.OK()) { - return {StatusCode::kCmdError, ret.msg}; + APPEND_FROM_BASE_AND_WARN(&st, ret, "create function failed on nameserver"); + return st; } cluster_sdk_->RegisterExternalFun(fun); - return {}; + return st; } hybridse::sdk::Status SQLClusterRouter::HandleDeploy(const std::string& db, diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index 75ea3a72d5e..03335c60a7a 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -5639,9 +5639,10 @@ void TabletImpl::DropFunction(RpcController* controller, const openmldb::api::Dr LOG(INFO) << "Drop function success. name " << fun.name() << " path " << fun.file(); base::SetResponseOK(response); } else { - LOG(WARNING) << "Drop function failed. name " << fun.name() << " msg " << status.msg; - response->set_msg(status.msg); - response->set_code(base::kRPCRunError); + // udf remove failed but it's ok to recreate even it exists, nameserver should treat it as success + SET_RESP_AND_WARN(response, base::ReturnCode::kDeleteFailed, + absl::StrCat("drop function failed, name ", fun.name(), ", error: [", status.GetCode(), "] ", + status.str())); } } From c4a83714f64043fd09f67f45a49ed5c60dd1efa8 Mon Sep 17 00:00:00 2001 From: dl239 Date: Tue, 25 Jul 2023 23:24:44 -0500 Subject: [PATCH 008/111] fix: `twine` and `urllib` mismatch (#3386) --- .github/workflows/sdk.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/.github/workflows/sdk.yml b/.github/workflows/sdk.yml index 27712f578ae..ed78524a9f6 100644 --- a/.github/workflows/sdk.yml +++ b/.github/workflows/sdk.yml @@ -260,7 +260,6 @@ jobs: - name: prepare python deps run: | - pip install twine "urllib3>=1.26.0,<2.0.0" yum install -y net-tools - name: test sqlalchemy and generate coverage report @@ -288,6 +287,7 @@ jobs: if: > github.repository == '4paradigm/OpenMLDB' && startsWith(github.ref, 'refs/tags/v') run: | + pip install twine "urllib3>=1.26.0,<2.0.0" cp python/openmldb_sdk/dist/openmldb*.whl . cp python/openmldb_tool/dist/openmldb*.whl . twine upload openmldb*.whl From f05067b2594443d52b20e316ed03c4e1ca715422 Mon Sep 17 00:00:00 2001 From: dl239 Date: Wed, 26 Jul 2023 00:58:03 -0500 Subject: [PATCH 009/111] feat: unpack sync tools in demo docker image (#3390) --- demo/setup_openmldb.sh | 3 +++ 1 file changed, 3 insertions(+) diff --git a/demo/setup_openmldb.sh b/demo/setup_openmldb.sh index 8a7b5fb8f63..8f5dea44f80 100755 --- a/demo/setup_openmldb.sh +++ b/demo/setup_openmldb.sh @@ -43,6 +43,9 @@ mkdir -p "${WORKDIR}/openmldb" tar xzf openmldb.tar.gz -C "${WORKDIR}/openmldb" --strip-components 1 # remove symbols and sections strip -s "${WORKDIR}/openmldb/bin/openmldb" +# do not install sync tools in demo docker +rm "${WORKDIR}/openmldb/bin/data_collector" +rm -rf "${WORKDIR}/openmldb/synctool" mkdir -p "${WORKDIR}/openmldb/spark-3.2.1-bin-openmldbspark" tar xzf spark-3.2.1-bin-openmldbspark.tgz -C "${WORKDIR}/openmldb/spark-3.2.1-bin-openmldbspark" --strip-components 1 From ba613543a20742b4db97d6d1d38fcae226476b86 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Thu, 27 Jul 2023 14:54:38 +0800 Subject: [PATCH 010/111] build(cxx): cmake configure on cmake 3.18 (#3367) --- src/sdk/CMakeLists.txt | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/src/sdk/CMakeLists.txt b/src/sdk/CMakeLists.txt index db2aadc638c..cc959f6a23b 100644 --- a/src/sdk/CMakeLists.txt +++ b/src/sdk/CMakeLists.txt @@ -295,7 +295,10 @@ function(get_lib_path X RET) endif() else() # if target has no location, handle it before call this function - get_target_property(RET_V ${X} LOCATION) + get_target_property(type ${X} TYPE) + if (NOT ${type} STREQUAL "INTERFACE_LIBRARY") + get_target_property(RET_V ${X} LOCATION) + endif() # message(STATUS "get ${X} path: ${RET_V}") endif() if("${RET_V}" STREQUAL "RET_V-NOTFOUND") @@ -343,10 +346,6 @@ list(REMOVE_DUPLICATES ABSL_LLVM_TGTS) # get absl llvm libs path foreach(X IN LISTS ABSL_LLVM_TGTS) - get_target_property(type ${X} TYPE) - if (${type} STREQUAL "INTERFACE_LIBRARY") - continue() - endif() get_lib_path(${X} Y) # message(STATUS "get ${X} path: ${Y}") list(APPEND CXXSDK_THIRDPARTY_LIBS ${Y}) From 2fbc9069a35e967de92bd4e7248749e53770b27d Mon Sep 17 00:00:00 2001 From: zhangziheng01233 <130030057+zhangziheng01233@users.noreply.github.com> Date: Fri, 28 Jul 2023 12:00:40 +0800 Subject: [PATCH 011/111] feat: diag tool proto parser and rpc service (#3330) --------- Co-authored-by: HuangWei --- docs/zh/developer/python_dev.md | 5 + docs/zh/maintain/diagnose.md | 36 +++- onebox/stop_all.sh | 2 +- python/openmldb_tool/README.md | 35 +++- .../diagnostic_tool/common_err.yml | 1 + .../openmldb_tool/diagnostic_tool/diagnose.py | 133 ++++++++++--- .../openmldb_tool/diagnostic_tool/parser.py | 14 ++ python/openmldb_tool/diagnostic_tool/rpc.py | 181 ++++++++++++++++++ .../diagnostic_tool/server_checker.py | 13 +- python/openmldb_tool/setup.py | 33 ++-- python/openmldb_tool/tests/cmd_test.py | 17 +- python/openmldb_tool/tests/rpc_test.py | 37 ++++ steps/test_python.sh | 24 +-- 13 files changed, 460 insertions(+), 71 deletions(-) create mode 100644 python/openmldb_tool/diagnostic_tool/rpc.py create mode 100644 python/openmldb_tool/tests/rpc_test.py diff --git a/docs/zh/developer/python_dev.md b/docs/zh/developer/python_dev.md index 9fba4195b6e..d4b852fe355 100644 --- a/docs/zh/developer/python_dev.md +++ b/docs/zh/developer/python_dev.md @@ -42,6 +42,11 @@ pytest tests/ pytest -so log_cli=true --log-cli-level=DEBUG tests/ ``` +也可以使用module模式运行,适合做实际运行测试: +``` +python -m diagnostic_tool.diagnose ... +``` + ## Conda 如果使用Conda环境,`pytest`命令可能找到错误的python环境,而导致类似`ModuleNotFoundError: No module named 'IPython'`的问题。请使用`python -m pytest`。 diff --git a/docs/zh/maintain/diagnose.md b/docs/zh/maintain/diagnose.md index 9cd2f124599..eef7db5b5a1 100644 --- a/docs/zh/maintain/diagnose.md +++ b/docs/zh/maintain/diagnose.md @@ -8,7 +8,7 @@ 安装方式与使用: ```bash -pip install openmldb-tool +pip install openmldb-tool # openmldb-tool[rpc] openmldb_tool # 注意下划线 ``` 有以下几个子命令可选择执行: @@ -84,12 +84,12 @@ JOB 检查会检查集群中的离线任务,可以使用`inspect job`或`inspe 以下是一些常见的state: -state | 描述 ----------|-------- -finished | 成功完成的任务 -running | 正在运行的任务 -failed | 失败的任务 -killed | 被终止的任务 +| state | 描述 | +| -------- | -------------- | +| finished | 成功完成的任务 | +| running | 正在运行的任务 | +| failed | 失败的任务 | +| killed | 被终止的任务 | 更多state信息详见[Spark State]( https://spark.apache.org/docs/3.2.1/api/java/org/apache/spark/launcher/SparkAppHandle.State.html),[Yarn State](https://hadoop.apache.org/docs/current/api/org/apache/hadoop/yarn/api/records/YarnApplicationState.html) @@ -193,6 +193,28 @@ nameserver: openmldb_tool static-check --conf_file=/work/openmldb/conf/hosts -VCL --local ``` +### rpc + +`openmldb_tool`还提供了一个RPC接口,但它是一个额外组件,需要通过`pip install openmldb-tool[rpc]`安装。使用方式是`openmldb_tool rpc`,例如,`openmldb_tool rpc ns ShowTable --field '{"show_all":true}'`可以调用`nameserver`的`ShowTable`接口,获取表的状态信息。 + +NameServer与TaskManager只有一个活跃,所以我们用ns和tm来代表这两个组件。 +而TabletServer有多个,我们用`tablet1`,`tablet2`等来指定某个TabletServer,顺序可通过`openmldb_tool rpc`或`openmldb_tool status`来查看。 + +如果对RPC服务的方法或者输入参数不熟悉,可以通过`openmldb_tool rpc [method] --hint`查看帮助信息。例如: +```bash +$ openmldb_tool rpc ns ShowTable --hint +... +server proto version is 0.7.0-e1d35fcf6 +hint use pb2 files from /tmp/diag_cache +You should input json like this, ignore round brackets in the key and double quotation marks in the value: --field '{ + "(optional)name": "string", + "(optional)db": "string", + "(optional)show_all": "bool" +}' +``` +hint还需要额外的pb文件,帮助解析输入参数,默认是从`/tmp/diag_cache`中读取,如果不存在则自动下载。如果你已有相应的文件,或者已经手动下载,可以通过`--pbdir`指定该目录。 + ## 附加 可使用`openmldb_tool --helpfull`查看所有配置项。例如,`--sdk_log`可以打印sdk的日志(zk,glog),可用于调试。 + \ No newline at end of file diff --git a/onebox/stop_all.sh b/onebox/stop_all.sh index 03c9f6fe0cb..747adcdf929 100755 --- a/onebox/stop_all.sh +++ b/onebox/stop_all.sh @@ -19,6 +19,6 @@ set -x -e if [[ "$OSTYPE" = "darwin"* ]]; then pkill -9 -x -l openmldb else - pkill -9 -x -e openmldb + pgrep -a -f "openmldb.*onebox.*" | awk '{print $1}' | xargs -I {} kill -9 {} fi diff --git a/python/openmldb_tool/README.md b/python/openmldb_tool/README.md index e1749a97c86..3381751edf9 100644 --- a/python/openmldb_tool/README.md +++ b/python/openmldb_tool/README.md @@ -3,14 +3,20 @@ In `diagnostic_tool/`: ``` -|-- collector.py # collect version/config/logs (local or remote ssh/scp, defined by distribution conf file) -|-- conf_validator.py -|-- connector.py # openmldb singleton connection -|-- diagnose.py # main -|-- dist_conf.py # read distribution conf file, dist.yml or hosts -|-- log_analyzer.py # analyze log, you can add your own rules -|-- server_checker.py # server status checker, sql tester, you can add more checks -`-- util.py +├── collector.py # collect version/config/logs (local or remote ssh/scp, defined by distribution conf file) +├── common_err.yml +├── conf_validator.py +├── connector.py # openmldb singleton connection +├── diagnose.py # main +├── dist_conf.py # read distribution conf file, dist.yml or hosts +├── __init__.py +├── log_analyzer.py analyze log, you can add your own rules +├── parser.py +├── __pycache__ +├── rpc.py # optional module, rpc helper and executor for servers +├── server_checker.py # server status checker, sql tester, you can add more checks +├── table_checker.py +└── util.py ``` ## Subcommands @@ -25,6 +31,7 @@ inspect no sub means inspect all test test online insert&select, test offline select if taskmanager exists static-check needs config file(dist.yml or hosts) [-V,--version/-C,--conf/-L,--log/-VCL] +rpc user-friendly rpc tool ``` For example: @@ -122,3 +129,15 @@ log_analysis.py read logs from local collection path ``. - show warning logs in `nameserver.info.log`, `tablet.info.log` - show warning logs and exceptions in `taskmanager.log` + +## RPC + +Optional module, rpc helper and executor for servers. You can install it by `pip install openmldb[rpc]`. You can execute rpc directly, but if you want rpc hint, you need to download or compile protobuf files in `OpenMLDB/src/proto`. + +```bash +cd OpenMLDB +make thirdparty +# install to any dir +.deps/usr/bin/protoc --python_out=$(pwd)/pb2 --proto_path=src/proto/ src/proto/*.proto +``` +Then use `openmldb_tool rpc --pbdir=` to run rpc commands. diff --git a/python/openmldb_tool/diagnostic_tool/common_err.yml b/python/openmldb_tool/diagnostic_tool/common_err.yml index 2f45945fbcf..6a4a0f96a84 100644 --- a/python/openmldb_tool/diagnostic_tool/common_err.yml +++ b/python/openmldb_tool/diagnostic_tool/common_err.yml @@ -13,3 +13,4 @@ errors: - "fail to init zk handler with hosts" description: "Error: fail to init zk handler with hosts" solution: "zk_conn_err" + diff --git a/python/openmldb_tool/diagnostic_tool/diagnose.py b/python/openmldb_tool/diagnostic_tool/diagnose.py index 6b2c742f03e..8bd67719489 100644 --- a/python/openmldb_tool/diagnostic_tool/diagnose.py +++ b/python/openmldb_tool/diagnostic_tool/diagnose.py @@ -15,6 +15,7 @@ # limitations under the License. import argparse +import json import os import textwrap import time @@ -118,7 +119,7 @@ def insepct_online(args): assert not fails, f"unhealthy tables: {fails}" print(f"all tables are healthy") - if getattr(args, 'dist', False): + if getattr(args, "dist", False): table_checker = TableChecker(conn) table_checker.check_distribution(dbs=flags.FLAGS.db.split(",")) @@ -131,7 +132,9 @@ def inspect_offline(args): print(f"inspect {total} offline jobs") if num: failed_jobs_str = "\n".join(jobs) - raise AssertionError(f"{num} offline final jobs are failed\nfailed jobs:\n{failed_jobs_str}") + raise AssertionError( + f"{num} offline final jobs are failed\nfailed jobs:\n{failed_jobs_str}" + ) print("all offline final jobs are finished") @@ -142,7 +145,9 @@ def _get_jobs(states=None): total_num = len(jobs) # jobs sorted by id jobs.sort(key=lambda x: x[0]) - show_jobs = [_format_job_row(row) for row in jobs if not states or row[2].lower() in states] + show_jobs = [ + _format_job_row(row) for row in jobs if not states or row[2].lower() in states + ] return total_num, len(show_jobs), show_jobs @@ -222,6 +227,65 @@ def static_check(args): LogAnalyzer(dist_conf, flags.FLAGS.collect_dir).run() +def rpc(args): + connect = Connector() + status_checker = checker.StatusChecker(connect) + + host = args.host + if not host: + status_checker.check_components() + print( + """choose one host to connect, e.g. "openmldb_tool rpc ns". + ns: nameserver(master only, no need to choose) + tablet:you can get from component table, e.g. the first tablet in table is tablet1 + tm: taskmanager""" + ) + return + from diagnostic_tool.rpc import RPC + + # use status connction to get version + conns_with_version = { + endpoint: version + for endpoint, version, _, _ in status_checker.check_connection() + } + _, endpoint, _ = RPC.get_endpoint_service(host) + proto_version = conns_with_version[endpoint] + print(f"server proto version is {proto_version}") + + operation = args.operation + field = json.loads(args.field) + rpc_service = RPC(host) + if args.hint: + pb2_dir = flags.FLAGS.pbdir + print(f"hint use pb2 files from {pb2_dir}") + # check about rpc depends proto compiled dir + if ( + not os.path.isdir(pb2_dir) + or len([pb for pb in os.listdir(pb2_dir) if pb.endswith("_pb2.py")]) < 8 + ): + print(f"{pb2_dir} is broken, mkdir and download") + os.system(f"mkdir -p {pb2_dir}") + import tarfile + import requests + + # pb2.tar has no dir, extract to pb2_dir + url = "https://openmldb.ai/download/diag/pb2.tgz" + r = requests.get(url) + with open(f"{pb2_dir}/pb2.tgz", "wb") as f: + f.write(r.content) + + with tarfile.open(f"{pb2_dir}/pb2.tgz", "r:gz") as tar: + tar.extractall(pb2_dir) + rpc_service.hint(args.operation) + return + if not operation: + print( + "choose one operation, e.g. `openmldb_tool rpc ns ShowTable`, --hint for methods list or one method help" + ) + return + rpc_service(operation, field) + + def parse_arg(argv): """parser definition, absl.flags + argparse""" parser = argparse_flags.ArgumentParser( @@ -258,41 +322,32 @@ def parse_arg(argv): online = inspect_sub.add_parser("online", help="only inspect online table.") online.set_defaults(command=insepct_online) online.add_argument( - "--dist", - action="store_true", - help="Inspect online distribution." + "--dist", action="store_true", help="Inspect online distribution." ) # inspect offline - offline = inspect_sub.add_parser( - "offline", help="only inspect offline jobs." - ) + offline = inspect_sub.add_parser("offline", help="only inspect offline jobs.") offline.set_defaults(command=inspect_offline) # inspect job - ins_job = inspect_sub.add_parser("job", help="show jobs by state, show joblog or parse joblog by id.") - ins_job.set_defaults(command=inspect_job) - ins_job.add_argument( - "--state", - default="all", - help="Specify which state offline jobs, split by ','" + ins_job = inspect_sub.add_parser( + "job", help="show jobs by state, show joblog or parse joblog by id." ) + ins_job.set_defaults(command=inspect_job) ins_job.add_argument( - "--id", - help="inspect joblog by id" + "--state", default="all", help="Specify which state offline jobs, split by ','" ) + ins_job.add_argument("--id", help="inspect joblog by id") ins_job.add_argument( "--detail", action="store_true", - help="show detailed joblog information, use with `--id`" + help="show detailed joblog information, use with `--id`", ) ins_job.add_argument( "--conf-url", default="https://raw.githubusercontent.com/4paradigm/OpenMLDB/main/python/openmldb_tool/diagnostic_tool/common_err.yml", - help="url used to update the log parser configuration. If downloading is slow, you can try mirror source 'https://openmldb.ai/download/diag/common_err.yml'" + help="url used to update the log parser configuration. If downloading is slow, you can try mirror source 'https://openmldb.ai/download/diag/common_err.yml'", ) ins_job.add_argument( - "--conf-update", - action="store_true", - help="update the log parser configuration" + "--conf-update", action="store_true", help="update the log parser configuration" ) # sub test @@ -325,6 +380,40 @@ def parse_arg(argv): ) static_check_parser.set_defaults(command=static_check) + # sub rpc + rpc_parser = subparsers.add_parser( + "rpc", + help="user-friendly rpc tool", + ) + rpc_parser.add_argument( + "host", + nargs="?", + help=textwrap.dedent( + """ \ + host name, if no value, print the component table. + ns: nameserver(master only, no need to choose) + tablet:you can get from component table, e.g. the first tablet in table is tablet1 + tm: taskmanager + """ + ), + ) + rpc_parser.add_argument( + "operation", + nargs="?", + default="", + ) + rpc_parser.add_argument( + "--field", + default="{}", + help='json format, e.g. \'{"db":"db1","table":"t1"}\', default is \'{}\'', + ) + rpc_parser.add_argument( + "--hint", + action="store_true", + help="print rpc hint for current operation(rpc method), if no operation, print all possible rpc methods", + ) + rpc_parser.set_defaults(command=rpc) + def help(args): parser.print_help() diff --git a/python/openmldb_tool/diagnostic_tool/parser.py b/python/openmldb_tool/diagnostic_tool/parser.py index ae57c5597af..5b336de5992 100644 --- a/python/openmldb_tool/diagnostic_tool/parser.py +++ b/python/openmldb_tool/diagnostic_tool/parser.py @@ -1,3 +1,17 @@ +# Copyright 2021 4Paradigm +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + import os import re import requests diff --git a/python/openmldb_tool/diagnostic_tool/rpc.py b/python/openmldb_tool/diagnostic_tool/rpc.py new file mode 100644 index 00000000000..686734e7641 --- /dev/null +++ b/python/openmldb_tool/diagnostic_tool/rpc.py @@ -0,0 +1,181 @@ +# Copyright 2021 4Paradigm +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from absl import flags +import json +import requests +from bs4 import BeautifulSoup +from google.protobuf.descriptor import FieldDescriptor + +from .server_checker import StatusChecker +from .connector import Connector + +flags.DEFINE_string( + "pbdir", + "/tmp/diag_cache", + "pb2 root dir, if not set, will use the /pb2 directory in the same directory as this script", +) + + +class DescriptorHelper: + def __init__(self, service): + # TODO(hw): symbol_database is useful? + # lazy import + assert flags.FLAGS.pbdir, "pbdir not set" + import sys + from pathlib import Path + sys.path.append(Path(flags.FLAGS.pbdir).as_posix()) + import tablet_pb2 + import name_server_pb2 + import taskmanager_pb2 + + pb_map = { + "TabletServer": tablet_pb2, + "NameServer": name_server_pb2, + "TaskManagerServer": taskmanager_pb2, + # "ApiServer": api_server_pb2, + # "DataSync": data_sync_pb2, + } + self.descriptor = pb_map[service].DESCRIPTOR.services_by_name[service] + + def get_input_json(self, method): + inp = self.descriptor.FindMethodByName(method).input_type + return Field.to_json(inp) + + +class Field: + def to_str(typ): + typ2str = { + FieldDescriptor.TYPE_DOUBLE: "double", + FieldDescriptor.TYPE_FLOAT: "float", + FieldDescriptor.TYPE_INT64: "int64", + FieldDescriptor.TYPE_UINT64: "uint64", + FieldDescriptor.TYPE_INT32: "int32", + FieldDescriptor.TYPE_FIXED64: "fixed64", + FieldDescriptor.TYPE_FIXED32: "fixed32", + FieldDescriptor.TYPE_BOOL: "bool", + FieldDescriptor.TYPE_STRING: "string", + FieldDescriptor.TYPE_GROUP: "group", + FieldDescriptor.TYPE_MESSAGE: "message", + FieldDescriptor.TYPE_BYTES: "bytes", + FieldDescriptor.TYPE_UINT32: "uint32", + } + return typ2str[typ] + + def to_json(field): + # label optional, required, or repeated. + label = {1: "optional", 2: "required", 3: "repeated"} + if isinstance(field, FieldDescriptor): + key = f"({label[field.label]})" + field.name + if field.type == FieldDescriptor.TYPE_MESSAGE: + value = Field.to_json(field.message_type) + elif field.type == FieldDescriptor.TYPE_ENUM: + value = "/".join([n.name for n in field.enum_type.values]) + else: + value = Field.to_str(field.type) + if field.label == 3: + # json list style + return {key: [value, "..."]} + else: + return {key: value} + else: + # field is a message + if field.containing_type and [f.name for f in field.fields] == [ + "key", + "value", + ]: + # treat key-value as map type, can't figure out custom type + # TODO(hw): it's ok to pass a json list to proto map? + return {"k": "v", "...": "..."} + d = {} + for f in field.fields: + d.update(Field.to_json(f)) + return d + + +class RPC: + """rpc service""" + + def __init__(self, host) -> None: + self.host, self.endpoint, self.service = RPC.get_endpoint_service(host.lower()) + + def rpc_help(self): + if self.host == "taskmanager": + r = requests.post(f"http://{self.endpoint}") + else: + r = requests.post(f"http://{self.endpoint}/{self.service}") + return RPC.parse_html(r.text) + + def rpc_exec(self, operation, field): + r = requests.post( + f"http://{self.endpoint}/{self.service}/{operation}", json=field + ) + return r.text + + def hint(self, info): + if not info: + # show service name and all rpc methods + print(self.rpc_help()) + return + + # input message to json style + + # if taskmanager, service in pb2 is TaskManagerServer + service = ( + self.service + if not self.service.endswith("TaskManagerServer") + else "TaskManagerServer" + ) + + helper = DescriptorHelper(service) + json_str = json.dumps(helper.get_input_json(info), indent=4) + print( + f"You should input json like this, ignore round brackets in the key and double quotation marks in the value: --field '{json_str}'" + ) + + def search_in(self, typ, info): + for item in typ: + if info in item.keys(): + return item[info] + + def __call__(self, operation, field): + if not operation: + text = self.rpc_help() + else: + text = self.rpc_exec(operation, field) + print(text) + + def get_endpoint_service(host): + conn = Connector() + components_map = StatusChecker(conn)._get_components() + if host.startswith("tablet"): + num = int(host[6:]) - 1 + host = "tablet" + else: + assert host in ["ns", "tm"] + num = 0 + host = "nameserver" if host == "ns" else "taskmanager" + assert host in components_map, f"{host} not found in cluster" + endpoint = components_map[host][num][0] + host2service = { + "nameserver": "NameServer", + "taskmanager": "openmldb.taskmanager.TaskManagerServer", + "tablet": "TabletServer", + } + service = host2service[host] + return host, endpoint, service + + def parse_html(html): + soup = BeautifulSoup(html, "html.parser") + return soup.get_text("\n") diff --git a/python/openmldb_tool/diagnostic_tool/server_checker.py b/python/openmldb_tool/diagnostic_tool/server_checker.py index 0a18c74de34..35c50103b46 100644 --- a/python/openmldb_tool/diagnostic_tool/server_checker.py +++ b/python/openmldb_tool/diagnostic_tool/server_checker.py @@ -19,7 +19,6 @@ from prettytable import PrettyTable import re import requests -import time from .connector import Connector from .dist_conf import DistConf, COMPONENT_ROLES, ServerInfo @@ -43,19 +42,25 @@ def check_connection(self): t.title = "Connections" t.field_names = ["Endpoint", "Version", "Cost_time", "Extra"] err = "" - taskmanager = component_map.pop("taskmanager") # extract taskmanager + taskmanager = [] + if "taskmanager" in component_map: + taskmanager = component_map.pop("taskmanager") # extract taskmanager other_components = [component for role in component_map.values() for component in role] # extract other components + conns = [] for (endpoint, _) in other_components: version, response_time, ex, e = self._get_information(endpoint) - t.add_row([endpoint, version, response_time, ex]) + conns.append([endpoint, version, response_time, ex]) err += e for (endpoint, _) in taskmanager: version, response_time, ex, e = self._get_information_taskmanager(endpoint) - t.add_row([endpoint, version, response_time, ex]) + conns.append([endpoint, version, response_time, ex]) err += e + for conn in conns: + t.add_row(conn) print(t) if err: print(err) + return conns def _get_information(self, endpoint): """get informations from components except taskmanager""" diff --git a/python/openmldb_tool/setup.py b/python/openmldb_tool/setup.py index fafaeae3a88..f7120cfa256 100644 --- a/python/openmldb_tool/setup.py +++ b/python/openmldb_tool/setup.py @@ -17,15 +17,15 @@ from setuptools import setup, find_packages setup( - name='openmldb-tool', - version='0.7.0a0', - author='OpenMLDB Team', - author_email=' ', - url='https://github.com/4paradigm/OpenMLDB', - description='OpenMLDB Tool', + name="openmldb-tool", + version="0.7.0a0", + author="OpenMLDB Team", + author_email=" ", + url="https://github.com/4paradigm/OpenMLDB", + description="OpenMLDB Tool", license="copyright 4paradigm.com", classifiers=[ - 'Programming Language :: Python :: 3', + "Programming Language :: Python :: 3", ], install_requires=[ "openmldb >= 0.6.9", @@ -35,15 +35,20 @@ "termplotlib", "requests", ], - extras_require={'test': [ - "pytest", - ]}, - packages=find_packages(exclude=['tests']), - exclude_package_data={ - 'openmldb-tool': ['diagnostic_tool/common_err.yml'] + extras_require={ + "rpc": [ + "protobuf==3.6.1", + "beautifulsoup4", + ], + "test": [ + "openmldb-tool[rpc]", + "pytest", + ], }, + packages=find_packages(exclude=["tests"]), + exclude_package_data={"openmldb-tool": ["diagnostic_tool/common_err.yml"]}, entry_points={ - 'console_scripts': ['openmldb_tool = diagnostic_tool.diagnose:run'], + "console_scripts": ["openmldb_tool = diagnostic_tool.diagnose:run"], }, zip_safe=False, ) diff --git a/python/openmldb_tool/tests/cmd_test.py b/python/openmldb_tool/tests/cmd_test.py index 29e669d9458..461bba274d9 100644 --- a/python/openmldb_tool/tests/cmd_test.py +++ b/python/openmldb_tool/tests/cmd_test.py @@ -1,3 +1,17 @@ +# Copyright 2021 4Paradigm +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + import pytest from diagnostic_tool.diagnose import parse_arg, main from absl import flags @@ -19,7 +33,8 @@ def test_helpmsg(): parse_arg(["foo", "static-check", "-h"]) with pytest.raises(SystemExit): parse_arg(["foo", "--helpfull"]) - + with pytest.raises(SystemExit): + parse_arg(["foo", "rpc", "-h"]) def test_argparse(): cluster_arg = f"--cluster={OpenMLDB_ZK_CLUSTER}" diff --git a/python/openmldb_tool/tests/rpc_test.py b/python/openmldb_tool/tests/rpc_test.py new file mode 100644 index 00000000000..e2804418ef9 --- /dev/null +++ b/python/openmldb_tool/tests/rpc_test.py @@ -0,0 +1,37 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- +# Copyright 2021 4Paradigm +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import pytest +from diagnostic_tool.diagnose import parse_arg, main +from .case_conf import OpenMLDB_ZK_CLUSTER + + +def test_rpc(): + cluster_arg = f"--cluster={OpenMLDB_ZK_CLUSTER}" + args = parse_arg( + [ + "foo", + "rpc", + cluster_arg, + ] + ) + main(args) + + main(parse_arg(["foo", "rpc", cluster_arg, "ns"])) + main(parse_arg(["foo", "rpc", cluster_arg, "tablet1"])) + # no taskmanager in test onebox + if not "onebox" in OpenMLDB_ZK_CLUSTER: + main(parse_arg(["foo", "rpc", cluster_arg, "tm"])) diff --git a/steps/test_python.sh b/steps/test_python.sh index 1fe32015f35..8c366f77b0c 100644 --- a/steps/test_python.sh +++ b/steps/test_python.sh @@ -18,36 +18,32 @@ set -ex ROOT_DIR=$(pwd) +bash onebox/stop_all.sh + # on hybridsql 0.4.1 or later, 'THIRD_PARTY_SRC_DIR' is defined and is '/deps/src' THIRDSRC=${THIRD_PARTY_SRC_DIR:-thirdsrc} -test -d /rambuild/ut_zookeeper && rm -rf /rambuild/ut_zookeeper/* -cp steps/zoo.cfg "$THIRDSRC/zookeeper-3.4.14/conf" -cd "$THIRDSRC/zookeeper-3.4.14" -# TODO(hw): macos no -p -if [[ "$OSTYPE" =~ ^darwin ]]; then - lsof -ni | grep 6181 | awk '{print $2}'| xargs -I{} kill -9 {} -elif [[ "$OSTYPE" =~ ^linux ]]; then - netstat -anp | grep 6181 | awk '{print $NF}' | awk -F '/' '{print $1}'| xargs -I{} kill -9 {} -fi -./bin/zkServer.sh start && cd "$ROOT_DIR" -echo "zk started" +bash steps/ut_zookeeper.sh reset sleep 5 -cd onebox && sh start_onebox.sh && cd "$ROOT_DIR" +bash onebox/start_onebox.sh echo "onebox started, check" sleep 5 pgrep -f openmldb echo "ROOT_DIR:${ROOT_DIR}" +# debug +python3 -m pip --version + cd "${ROOT_DIR}"/python/openmldb_sdk/dist/ whl_name_sdk=$(ls openmldb*.whl) echo "whl_name_sdk:${whl_name_sdk}" -python3 -m pip install "${whl_name_sdk}" +python3 -m pip install "${whl_name_sdk}[test]" cd "${ROOT_DIR}"/python/openmldb_tool/dist/ whl_name_tool=$(ls openmldb*.whl) echo "whl_name_tool:${whl_name_tool}" -python3 -m pip install "${whl_name_tool}" +# pip 23.1.2 just needs to install test(rpc is required by test) +python3 -m pip install "${whl_name_tool}[rpc,test]" python3 -m pip install pytest-cov From c0d8fc97c97f796a4c0c1e7dc218e9ffa7e58926 Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Fri, 28 Jul 2023 15:16:44 +0800 Subject: [PATCH 012/111] docs: en quickstart re-organized (#3175) --- .../en/quickstart/{cli.md => cli_tutorial.md} | 0 docs/en/quickstart/concepts/index.rst | 8 + docs/en/quickstart/concepts/workflow.md | 93 ++++ docs/en/quickstart/data_import_guide.md | 45 -- docs/en/quickstart/index.rst | 11 +- docs/en/quickstart/java_sdk.md | 432 ---------------- docs/en/quickstart/openmldb_quickstart.md | 412 ++++++---------- docs/en/quickstart/python_sdk.md | 213 -------- docs/en/quickstart/rest_api.md | 312 ------------ docs/en/quickstart/sdk/cpp_sdk.md | 117 +++++ docs/en/quickstart/{ => sdk}/go_sdk.md | 55 ++- docs/en/quickstart/sdk/index.rst | 12 + docs/en/quickstart/sdk/java_sdk.md | 465 ++++++++++++++++++ docs/en/quickstart/sdk/python_sdk.md | 241 +++++++++ docs/en/quickstart/sdk/rest_api.md | 327 ++++++++++++ 15 files changed, 1448 insertions(+), 1295 deletions(-) rename docs/en/quickstart/{cli.md => cli_tutorial.md} (100%) create mode 100644 docs/en/quickstart/concepts/index.rst create mode 100644 docs/en/quickstart/concepts/workflow.md delete mode 100644 docs/en/quickstart/data_import_guide.md delete mode 100644 docs/en/quickstart/java_sdk.md delete mode 100644 docs/en/quickstart/python_sdk.md delete mode 100644 docs/en/quickstart/rest_api.md create mode 100644 docs/en/quickstart/sdk/cpp_sdk.md rename docs/en/quickstart/{ => sdk}/go_sdk.md (62%) create mode 100644 docs/en/quickstart/sdk/index.rst create mode 100644 docs/en/quickstart/sdk/java_sdk.md create mode 100644 docs/en/quickstart/sdk/python_sdk.md create mode 100644 docs/en/quickstart/sdk/rest_api.md diff --git a/docs/en/quickstart/cli.md b/docs/en/quickstart/cli_tutorial.md similarity index 100% rename from docs/en/quickstart/cli.md rename to docs/en/quickstart/cli_tutorial.md diff --git a/docs/en/quickstart/concepts/index.rst b/docs/en/quickstart/concepts/index.rst new file mode 100644 index 00000000000..d02cca2378f --- /dev/null +++ b/docs/en/quickstart/concepts/index.rst @@ -0,0 +1,8 @@ +============================= +Concept +============================= + +.. toctree:: + :maxdepth: 1 + + workflow diff --git a/docs/en/quickstart/concepts/workflow.md b/docs/en/quickstart/concepts/workflow.md new file mode 100644 index 00000000000..2ce5c58ff19 --- /dev/null +++ b/docs/en/quickstart/concepts/workflow.md @@ -0,0 +1,93 @@ +# Workflow and Execution Modes + +OpenMLDB supports different execution modes at different stages of the feature engineering development process. This article will introduce the process of using OpenMLDB for feature engineering development and deployment, as well as the different execution modes used in the process. + +## Workflow Overview + +The following diagram illustrates the typical process of using OpenMLDB for feature engineering development and deployment, as well as the execution modes used in the process: + +![image-20220310170024349](https://openmldb.ai/docs/zh/main/_images/modes-flow.png) + +1. Offline Data Import: Import offline data for offline feature engineering development and debugging. +2. Offline Feature Development: Develop feature engineering scripts and debug them until satisfactory results are achieved. This step involves joint debugging of machine learning models (such as XGBoost, LightGBM, etc.), but this article mainly focuses on feature engineering development related to OpenMLDB. +3. Feature Scheme Deployment: Deploy the feature scripts after satisfactory results are achieved. +4. Cold Start Online Data Import: Before official deployment, it is necessary to import the data within the required window for the online storage engine. For example, if the feature scheme involves feature aggregation calculations for data in the past three months, the previous three months' data needs to be imported for cold start. +5. Real-time Data Access: After the system is deployed, the latest data needs to be collected to maintain the window calculation logic, so real-time data access is required. +6. Online Data Preview (optional): Preview and check online data using supported SQL commands. This step is not mandatory. +7. Real-time Feature Calculation: After the feature scheme is deployed and the data is correctly accessed, a real-time feature calculation service that can respond to online requests will be obtained. + +## Overview of execution mode + +As the data objects for offline and online scenarios are different, their underlying storage and computing nodes are also different. Therefore, OpenMLDB provides several built-in execution modes to support completing the above steps. The following table summarizes the execution modes and development tools used for each step, and three execution modes will be discussed in detail later. + +| Steps | Execution Mode | Development Tool | +| ------------------------------ | ------------------- | ------------------------------------------------------------ | +| 1. Offline Data Import | Offline Mode | OpenMLDB CLI, SDKs | +| Offline Feature Development | Offline Mode | OpenMLDB CLI, SDKs | +| Feature Deployment | Offline Mode | OpenMLDB CLI, SDKs | +| Cold Start Online Data Import | Online Preview Mode | OpenMLDB CLI, SDKs, [Data Import Tool](https://openmldb.ai/docs/zh/main/tutorial/data_import.html) | +| Real-time Data Integration | Online Preview Mode | Connectors, SDKs | +| Online Data Preview (optional) | Online Preview Mode | OpenMLDB CLI, SDKs, [Data Export Tool](https://openmldb.ai/docs/zh/main/tutorial/data_export.html) | +| Real-time Feature Calculation | Online Request Mode | CLI (REST APIs), SDKs | + +### Offline Mode + +After starting OpenMLDB CLI, the **default mode is offline mode**. Offline data import, offline feature development, and feature deployment are all executed in offline mode. The purpose of offline mode is to manage and compute offline data. The computing nodes involved are supported by OpenMLDB Spark optimized for feature engineering, and the storage nodes support commonly used storage systems such as HDFS. + +Offline mode has the following main features: + +- The offline mode supports most of the SQL syntax provided by OpenMLDB, including complex SQL syntaxes such as `LAST JOIN` and `WINDOW UNION`, which are optimized for feature engineering. + +- In offline mode, some SQL commands are executed asynchronously, such as `LOAD DATA`, `SELECT`, and `SELECT INTO` commands. Other SQL commands are executed synchronously. + +- The asynchronous SQL is managed by the internal TaskManager and can be viewed and managed through commands such as `SHOW JOBS`, `SHOW JOB`, and `STOP JOB`. + +```{tip} +::: +Unlike many relational database systems, the `SELECT` command in offline mode is executed asynchronously by default. If you need to set it to synchronous execution, refer to setting the command to run synchronously in offline mode. During offline feature development, if asynchronous execution is used, it is strongly recommended to use the `SELECT INTO` statement for development and debugging, which can export the results to a file for easy viewing. +::: +``` + +The `DEPLOY` command for feature deployment is also executed in offline mode. Its specification can refer to the OpenMLDB SQL online specification and requirements. + +Offline mode setting command (OpenMLDB CLI): `SET @@execute_mode='offline'`. + +### Online preview mode + +Cold start online data import, real-time data access, and online data preview are executed in online preview mode. The purpose of the online preview mode is to manage and preview online data. Storage and computation of online data are supported by the tablet component. + +The main features of the online preview mode are: + +- `LOAD DATA`, used for online data import, can be done either locally (load_mode='local') or on the cluster (load_mode='cluster'). Local import is synchronous, while cluster import is asynchronous (same as in offline mode). Other operations are synchronous. +- Online preview mode is mainly used for previewing limited data. Selecting and viewing data directly through SELECT in OpenMLDB CLI or SDKs may result in data truncation. If the data volume is large, it is recommended to use an [export tool](https://openmldb.ai/docs/zh/main/tutorial/data_export.html) to view the complete data. +- SELECT statements in online preview mode currently do not support more complex queries such as `LAST JOIN` and `ORDER BY`. Refer to [SELECT](https://openmldb.ai/docs/zh/main/openmldb_sql/dql/SELECT_STATEMENT.html). +- The server in the online preview mode executes SQL statements on a single thread. For large data processing, it may be slow and may trigger a timeout. To increase the timeout period, the `--request_timeout` can be configured on the client. +- To prevent impact on online services, online preview mode limits the maximum number of accessed records and the number of different keys. This can be configured using `--max_traverse_cnt` and `--max_traverse_key_cnt`. Similarly, the maximum result size can be set using `--scan_max_bytes_size`. For detailed configuration, refer to the configuration file. + +The command for setting online preview mode in OpenMLDB CLI: `SET @@execute_mode='online'` + +### Online request mode + +After deploying feature scripts and accessing online data, the real-time feature computing service is ready to use, and real-time feature extraction can be performed through the online request mode. REST APIs and SDKs support the online request mode. The online request mode is a unique mode in OpenMLDB that supports real-time online computing and is very different from common SQL queries in databases. + +The online request mode requires three inputs: + +1. SQL feature script, which is the SQL script used in the feature deployment and online process, specifying the calculation logic for feature extraction. +2. Online data, which is the online data that has been imported during cold start or in real-time. Generally, it is the latest data for window computing in conjunction with SQL. For example, if the aggregation function in the SQL script defines a time window of the latest three months, then the online storage needs to retain the corresponding latest three months of data. +3. Real-time request row, which includes the current real-time behavior and is used for real-time feature extraction. For example, credit card information in anti-fraud scenarios or search keywords in recommendation scenarios. + +Based on the above inputs, for each real-time request row, the online request mode will return a feature extraction result. The computing logic is as follows: The request row is virtually inserted into the correct position of the online data table based on the logic in the SQL script (such as `PARTITION BY`, `ORDER BY`, etc.), and then only the feature aggregation computing is performed on that row, returning the unique corresponding extraction result. The following diagram intuitively explains the operation process of the online request mode. + +![modes-request](https://openmldb.ai/docs/zh/main/_images/modes-request.png) + +Online request mode is supported in the following ways: + +- OpenMLDB CLI: Not supported + +- [REST API](https://openmldb.ai/docs/zh/main/quickstart/sdk/rest_api.html): Supports requests for single or multiple request rows + +- [Java SDK](https://openmldb.ai/docs/zh/main/quickstart/sdk/java_sdk.html): Supports requests for single or multiple request rows + +- [Python SDK](https://openmldb.ai/docs/zh/main/quickstart/sdk/python_sdk.html): Only supports requests for a single request row + +- [C++ SDK](https://openmldb.ai/docs/zh/main/quickstart/sdk/cxx_sdk.html): Only supports requests for a single request row diff --git a/docs/en/quickstart/data_import_guide.md b/docs/en/quickstart/data_import_guide.md deleted file mode 100644 index 84ee0565488..00000000000 --- a/docs/en/quickstart/data_import_guide.md +++ /dev/null @@ -1,45 +0,0 @@ -# Data Import Quickstart - -There are two versions of OpenMLDB: the standalone version and cluster version. -- For standalone version, datasets are all stored in the memory. Only [`LOAD DATA`](../reference/sql/dml/LOAD_DATA_STATEMENT.md) can be used to import data in this mode. -- For the cluster version, datasets are stored separately in the offline and online storage engines. Offline and online ends don't share the data. - -This tutorial will focus on the data import methods of cluster version. - -## Data Import Methods of Cluster Version - -### 1 Offline Import (`LOAD DATA`) - -- OpenMLDB doesn't have its specialized offline storage engine, but it requires user to specify the offline storage path, that is modifying the configuration option of taskmanager: `offline.data.prefix`. You can use third-party storage engines, like local directory, HDFS, s3 to configure. -- There is only one way to import data offline: using [`LOAD DATA` command](../reference/sql/dml/LOAD_DATA_STATEMENT.md). Hard copy will be adopted as default. -- OpenMLDB will copy the original data to the path of `offline.data.prefix` by default. The files of `csv` and `parquet` format are supported. -- `LOAD DATA` with a soft link is also supported, you can use the option `deep_copy=false` to configure. Only the storage path of the datasets will be saved in OpenMLDB in a soft link. Both the `csv` and `parquet` files are supported as well. - - -```{note} -If the offline path of the table is a soft link, OpenMLDB doesn't support appending data to the table as it doesn't have write access to the files in the **soft link path**. You can overwrire the offline path of the table. If the path has been overwritten, the data in the original directory will not be removed, only the directory in the OpenMLDB will change. -``` - -### 2 Online Import - -The [online modes](../tutorial/modes.md) of OpenMLDB cluster version provide online storage engine (stored in memory). Only **hard copy** can be used in online import. - -#### 2.1 `LOAD DATA` - -[`LOAD DATA` command](../reference/sql/dml/LOAD_DATA_STATEMENT.md) can be used in **Online Request** and **Online Preview** mode to load `csv` files and `parquet` files. - -#### 2.2 Stream - -Data can be loaded from `Pulsar`, `Kafka` and `RocketMQ ` as well, see the following links for detail. -- [Pulsar Connector](../use_case/pulsar_connector_demo.md) -- [Kafka Connector](../use_case/kafka_connector_demo.md) -- [RocketMQ Connector](https://openmldb.ai/docs/zh/main/use_case/rocketmq_connector.html) - -## Note - -The [openmldb-import tool](../tutorial/data_import.md) can be used for bulk load, importing the data quickly into the standalone or the online storage of cluster version. - -The bulk load tool is still in development. There are some restrictions for usage: -1. Only `csv` files can be loaded. -2. The tool is supported only on a single machine. The requirement for the memory of the single machine is high and maybe the memory should be larger than the size of the data to be imported. - diff --git a/docs/en/quickstart/index.rst b/docs/en/quickstart/index.rst index 244dc820994..aefceb8f206 100644 --- a/docs/en/quickstart/index.rst +++ b/docs/en/quickstart/index.rst @@ -5,10 +5,7 @@ Quickstart .. toctree:: :maxdepth: 1 - openmldb_quickstart.md - java_sdk - python_sdk - go_sdk - rest_api - data_import_guide - cli + openmldb_quickstart + concepts/index + cli_tutorial + sdk/index diff --git a/docs/en/quickstart/java_sdk.md b/docs/en/quickstart/java_sdk.md deleted file mode 100644 index d12faa6e85c..00000000000 --- a/docs/en/quickstart/java_sdk.md +++ /dev/null @@ -1,432 +0,0 @@ -# Java SDK Quickstart - -## 1. Package Installation - -### Package Installation on Linux -Configure maven pom - -```xml - - com.4paradigm.openmldb - openmldb-jdbc - 0.8.2 - - - com.4paradigm.openmldb - openmldb-native - 0.8.2 - -``` -### Package Installation on Mac -Configure maven pom - -```xml - - com.4paradigm.openmldb - openmldb-jdbc - 0.8.2 - - - com.4paradigm.openmldb - openmldb-native - 0.8.2-macos - -``` -Note that since `openmldb-native` contains the C++ static library compiled by OpenMLDB, by default it is a Linux's static library. On macOS, the version of the above openmldb-native needs to be changed to `0.8.2-macos`, and the version of openmldb-jdbc remains unchanged. - -The macOS native relase only supports macos-12. If you want use in macos-11 or macos 10.15, you should build openmldb-native from source in macos-11/macos-10.15, see [Build Java SDK](../deploy/compile.md#build-java-sdk-with-multi-processes) for details. - -## 2. Quickstart - -We can connect the OpenMLDB by JDBC Connection or SqlClusterExecutor. - -### JDBC Connection - -JDBC Connecton only supports OpenMLDB cluster, no standalone. - -``` -Class.forName("com._4paradigm.openmldb.jdbc.SQLDriver"); -// No database in jdbcUrl -Connection connection = DriverManager.getConnection("jdbc:openmldb:///?zk=localhost:6181&zkPath=/openmldb"); - -// Set database in jdbcUrl -Connection connection1 = DriverManager.getConnection("jdbc:openmldb:///test_db?zk=localhost:6181&zkPath=/openmldb"); -``` - -The database in connection url must exist. - -```{caution} -JDBC Connection default execute mode is`online`. -``` - -#### 使用概览 - -You can use `Statement` to execute all sql in online or offline mode. To switch the execute mode, you should `SET @@execute_mode='...';`. For example: -```java -Statement stmt = connection.createStatement(); -stmt.execute("SET @@execute_mode='offline"); // set offline mode -stmt.execute("SELECT * from t1"); // offline select -ResultSet res = stmt.getResultSet(); // get the job info of the offline select -stmt.execute("SET @@execute_mode='online"); // set online mode -res = stmt.executeQuery("SELECT * from t1"); // online select, and executeQuery will return the result -``` - -The offline sql and online `LOAD DATA` are async in default, so the result is the job info(id, state, etc.), not the data. You can execute `show job ` to check if the job is finished. **You should run `ResultSet.next()` to get the first row in result, do not run `ResultSet.getXXX` without `next()`**. - -The job can be set to sync: -``` -SET @@sync_job=true; -``` -```{tip} -If the sync job takes more than 0.5h, you should [change the config](../reference/sql/ddl/SET_STATEMENT.md#offline-commands-configuration-details). -``` - -#### PreparedStatement - -`PreparedStatement` supports `SELECT`, `INSERT` and `DELETE`,`INSERT` only inserts into online. -```java -PreparedStatement selectStatement = connection.prepareStatement("SELECT * FROM t1 WHERE id=?"); -PreparedStatement insertStatement = connection.prepareStatement("INSERT INTO t1 VALUES (?,?)"); -PreparedStatement insertStatement = connection.prepareStatement("DELETE FROM t1 WHERE id=?"); -``` - -### SqlClusterExecutor -#### Create SqlClusterExecutor - -First, the OpenMLDB connection parameters should be configured. SdkOption is cluster mode in default. - -```java -// cluster: -SdkOption option = new SdkOption(); -option.setZkCluster("127.0.0.1:2181"); -option.setZkPath("/openmldb"); -option.setSessionTimeout(10000); -option.setRequestTimeout(60000); - -// standalone: -SdkOption option = new SdkOption(); -option.setHost("127.0.0.1"); -option.setPort(6527); -option.setClusterMode(false); // required -option.setSessionTimeout(10000); -option.setRequestTimeout(60000); -``` - -Then,create the executor. - -```java -sqlExecutor = new SqlClusterExecutor(option); -``` - -`SqlClusterExecutor` is thread-safe, but the execute mode is cached in `SqlClusterExecutor`. If one thread set online and execute an online job, and another thread set offline and execute an offline job, the result is unpredictable. If you want multi-threading and execute in multi modes, you should create multi `SqlClusterExecutor`. - -```{caution} -SqlClusterExecutor execute mode is `offline` in default, it's different with JDBC Connection. -``` -#### Statement - -Create a database: - -```java -java.sql.Statement state = sqlExecutor.getStatement(); -try { - state.execute("create database db_test"); -} catch (Exception e) { - e.printStackTrace(); -} finally { - state.close(); -} -``` - -Create a table in database 'db_test': - -```java -java.sql.Statement state = sqlExecutor.getStatement(); -try { - state.execute("use db_test"); - String createTableSql = "create table trans(c1 string,\n" + - " c3 int,\n" + - " c4 bigint,\n" + - " c5 float,\n" + - " c6 double,\n" + - " c7 timestamp,\n" + - " c8 date,\n" + - " index(key=c1, ts=c7));"; - state.execute(createTableSql); -} catch (Exception e) { - e.printStackTrace(); -} finally { - state.close(); -} -``` - -##### Use Statement to Query - -```java -java.sql.Statement state = sqlExecutor.getStatement(); -try { - state.execute("use db_test"); - // sqlExecutor execute mode is offline in default. Set online here - state.execute("SET @@execute_mode='online;"); - // we can `getResultSet` only if returns true - boolean ret = state.execute("select * from trans;"); - Assert.assertTrue(ret); - java.sql.ResultSet rs = state.getResultSet(); -} catch (Exception e) { - e.printStackTrace(); -} -``` - -Read result: - -```java -// print the first three columns for demo -try { - while (result.next()) { - System.out.println(resultSet.getString(1) + "," + resultSet.getInt(2) "," + resultSet.getLong(3)); - } -} catch (SQLException e) { - e.printStackTrace(); -} finally { - try { - if (result != null) { - result.close(); - } - } catch (SQLException throwables) { - throwables.printStackTrace(); - } -} -``` - -#### PreparedStatement - -We can get `PreparedStatement` from `SqlClusterExecutor`, e.g. get `InsertPreparedStmt` by `getInsertPreparedStmt`. There're three ways to use `InsertPreparedStmt`. -```{note} -Insertion only supports online, the execute mode won't affect it. -``` - -##### Normal Insert - -1. Using the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSql)` interface to get the `InsertPrepareStatement`. -2. Using the `Statement::execute()` interface to execute the insert statement. - -```java -String insertSql = "insert into trans values(\"aa\",23,33,1.4,2.4,1590738993000,\"2020-05-04\");"; -PreparedStatement pstmt = null; -try { - pstmt = sqlExecutor.getInsertPreparedStmt(db, insertSql); - Assert.assertTrue(pstmt.execute()); -} catch (SQLException e) { - e.printStackTrace(); - Assert.fail(); -} finally { - if (pstmt != null) { - try { - // PrepareStatement must be closed after it is used up - pstmt.close(); - } catch (SQLException throwables) { - throwables.printStackTrace(); - } - } -} -``` - -##### Use Placeholder to Execute Insert Statement - -1. Using the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSqlWithPlaceHolder)` interface to` get the InsertPrepareStatement`. -2. Calling the `PreparedStatement::setType(index, value)` interface to fill data into `InsertPrepareStatement`. -3. Using the `Statement::execute()` interface to execute the insert statement. - -```java -String insertSqlWithPlaceHolder = "insert into trans values(\"aa\", ?, 33, ?, 2.4, 1590738993000, \"2020-05-04\");"; -PreparedStatement pstmt = null; -try { - pstmt = sqlExecutor.getInsertPreparedStmt(db, insertSqlWithPlaceHolder); - pstmt.setInt(1, 24); - pstmt.setInt(2, 1.5f); - pstmt.execute(); -} catch (SQLException e) { - e.printStackTrace(); - Assert.fail(); -} finally { - if (pstmt != null) { - try { - // PrepareStatement must be closed after it is used up - pstmt.close(); - } catch (SQLException throwables) { - throwables.printStackTrace(); - } - } -} -``` - -##### Use Placeholder to Execute Batch Insert - -1. Using the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSqlWithPlaceHolder)` interface to` get the InsertPrepareStatement`. -2. Calling the `PreparedStatement::setType(index, value)` interface to fill data into `InsertPrepareStatement`. -3. Using the `PreparedStatement::addBatch()` interface to build current row. -4. Using the `PreparedStatement::setType(index, value)` and `PreparedStatement::addBatch()` to add new rows. -5. Using the `PreparedStatement::executeBatch()` to execute batch insert. - -```java -String insertSqlWithPlaceHolder = "insert into trans values(\"aa\", ?, 33, ?, 2.4, 1590738993000, \"2020-05-04\");"; -PreparedStatement pstmt = null; -try { - pstmt = sqlExecutor.getInsertPreparedStmt(db, insertSqlWithPlaceHolder); - pstmt.setInt(1, 24); - pstmt.setInt(2, 1.5f); - pstmt.addBatch(); - pstmt.setInt(1, 25); - pstmt.setInt(2, 1.6f); - pstmt.addBatch(); - pstmt.executeBatch(); -} catch (SQLException e) { - e.printStackTrace(); - Assert.fail(); -} finally { - if (pstmt != null) { - try { - // PrepareStatement must be closed after it is used up - pstmt.close(); - } catch (SQLException throwables) { - throwables.printStackTrace(); - } - } -} -``` - -#### SQL Queries in the Request Mode - -1. Using the `SqlClusterExecutor::getRequestPreparedStmt(db, selectSql)` interface to get the `RequestPrepareStatement`. -2. Calling the `PreparedStatement::setType(index, value)` interface to set the request data. Please call the `setType` interface and configure a valid value according to the data type corresponding to each column in the data table. -3. Calling the `Statement::executeQuery()` interface to execute the request query statement. - -```java -String selectSql = "SELECT c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM trans WINDOW w1 AS " + - "(PARTITION BY trans.c1 ORDER BY trans.c7 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW);"; -PreparedStatement pstmt = null; -ResultSet resultSet = null; -/* -c1 string,\n" + - " c3 int,\n" + - " c4 bigint,\n" + - " c5 float,\n" + - " c6 double,\n" + - "c7 timestamp,\n" + - " c8 date,\n" + -*/ -try { - // The first step, get RequestPrepareStatement - pstmt= sqlExecutor.getRequestPreparedStmt(db, selectSql); - - // The second step, execute the request mode, you need to set a line of request data in RequestPreparedStatement - pstmt.setString(1, "bb"); - pstmt.setInt(2, 24); - pstmt.setLong(3, 34l); - pstmt.setFloat(4, 1.5f); - pstmt.setDouble(5, 2.5); - pstmt.setTimestamp(6, new Timestamp(1590738994000l)); - pstmt.setDate(7, Date.valueOf("2020-05-05")); - - // Calling executeQuery will execute the select sql, the result in resultSet - resultSet = pstmt.executeQuery(); - - // access resultSet - Assert.assertEquals(resultSet.getMetaData().getColumnCount(), 3); - Assert.assertTrue(resultSet.next()); - Assert.assertEquals(resultSet.getString(1), "bb"); - Assert.assertEquals(resultSet.getInt(2), 24); - Assert.assertEquals(resultSet.getLong(3), 34); - - // The returned result set of a normal request query contains only one row of results, so the result of the second call to resultSet.next() is false - Assert.assertFalse(resultSet.next()); - -} catch (SQLException e) { - e.printStackTrace(); - Assert.fail(); -} finally { - try { - if (resultSet != null) { - // need to close after result is used up - resultSet.close(); - } - if (pstmt != null) { - pstmt.close(); - } - } catch (SQLException throwables) { - throwables.printStackTrace(); - } -} -``` - -#### Delete all data under one key in specific index - -There two methods to delete as below: - -- use delete sql -- use delete preparestatement - -``` -java.sql.Statement state = router.getStatement(); -try { - String sql = "DELETE FROM t1 WHERE col2 = 'key1';"; - state.execute(sql); - sql = "DELETE FROM t1 WHERE col2 = ?;"; - java.sql.PreparedStatement p1 = router.getDeletePreparedStmt("test", sql); - p1.setString(1, "key2"); - p1.executeUpdate(); - p1.close(); -} catch (Exception e) { - e.printStackTrace(); - Assert.fail(); -} finally { - try { - state.close(); - } catch (Exception e) { - e.printStackTrace(); - } -} -``` - -### A Complete Example - -See [Java quickstart demo](https://github.com/4paradigm/OpenMLDB/tree/main/demo/java_quickstart/demo). If macOS, add openmldb-native dependency and use the macos version. - -You can run: -``` -mvn package -java -cp target/demo-1.0-SNAPSHOT.jar com.openmldb.demo.App -``` - -## SDK Option - -Connect to cluster must set `zkCluster` and `zkPath`(set methods or add `foo=bar` after `?` in jdbc url). Other options are optional. - -Connect to standalone must set `host`, `port` and `isClusterMode`(`SDKOption.setClusterMode`). No jdbc supports. Notice that, `isClusterMode` is the required option, we can't detect it automatically now. Other options are optional. - -### General Optional Options - -We can set the options in cluster and standalone: -- enableDebug: default false. To enable the hybridse debug log(not the all log), you can see more log about sql compile and running. But the hybridse debug log may in tablet server log, the client won't collect all. -- requestTimeout: default 60000ms. To set the rpc timeout sent by client, exclude the rpc sent to taskmanager(job rpc timeout option is the variable `job_timeout`). -- glogLevel: default 0, the same to glog minloglevel. INFO, WARNING, ERROR, and FATAL are 0, 1, 2, and 3, respectively. so 0 will print INFO and higher levels。 -- glogDir: default empty. When it's empty, it'll print to stderr. -- maxSqlCacheSize: default 50. The max cache num of one db in one sql mode(client side). If client met no cache error(e.g. get error `please use getInsertRow with ... first` but we did `getInsertRow` before), you can set it bigger. - -### Optional Options for cluster - -The OpenMLDB cluster has zk and taskmanager, so there're options about them: -- sessionTimeout: default 10000ms. the session timeout connect to zookeeper. -- zkLogLevel: default 3. 0-disable all zk log, 1-error, 2-warn, 3-info, 4-debug. -- zkLogFile: default empty. If empty, print log to stdout. -- sparkConfPath: default empty. set the spark conf file used by job in the client side, no need to set conf in taskmanager and restart it. - -## SQL Validation - -JAVA client supports validate if the sql can be executed or deployed, there're two modes: batch and request. - -- `validateSQLInBatch` can validate if the sql can be executed on offline. - -- `validateSQLInRequest` can validate if the sql can be deployed. - -The two methods need all tables schema which need by sql, only support all tables in a single db, please **DO NOT** use `db.table` style in sql. \ No newline at end of file diff --git a/docs/en/quickstart/openmldb_quickstart.md b/docs/en/quickstart/openmldb_quickstart.md index fc99d75e7d0..944778abec4 100644 --- a/docs/en/quickstart/openmldb_quickstart.md +++ b/docs/en/quickstart/openmldb_quickstart.md @@ -1,379 +1,265 @@ # OpenMLDB Quickstart -This tutorial provides a quick start guide to use OpenMLDB. Basic steps are: creating a database, offline data import, offline feature extraction, SQL deployment, online data import, and online real-time feature extraction. The steps of the standalone and cluster versions are slightly different, and are demonstrated separately. +## Basic concepts -## 1. Environment and Data Preparation -```{warning} -Docker Engine version requirement: >= 18.03 -``` -This tutorial is demonstrated based on the OpenMLDB CLI, so first you need to download the sample data and start the OpenMLDB CLI. We recommend using the prepared docker image for a quick experience. - -```{note} -If you wan to compile and install it by yourself, you can refer to our [installation and deployment documentation](../deploy/install_deploy.md). -``` +The main use case of OpenMLDB is as a real-time feature platform for machine learning. The basic usage process is shown in the following diagram: -### 1.1. Download the Docker Image +![modes-flow](https://openmldb.ai/docs/zh/main/_images/modes-flow.png) -Pull the image (image download size is about 1GB, after decompression is about 1.7 GB) and start the docker container: +As can be seen, OpenMLDB covers the feature computing process of machine learning, from offline development to real-time request service online, providing a complete process. Please refer to the documentation for [the usage process and execution mode](https://openmldb.ai/docs/zh/main/quickstart/concepts/modes.html) in detail. This article will demonstrate a quick start and understanding of OpenMLDB step by step, following the basic usage process. -```bash -docker run -it 4pdosc/openmldb:0.8.2 bash -``` +## The preparation -```{important} -After the container is successfully started, all the subsequent commands in this tutorial are executed within the container by default. -``` +This article is developed and deployed based on OpenMLDB CLI, and it is necessary to download the sample data and start OpenMLDB CLI first. It is recommended to use Docker image for a quick experience (Note: due to some known issues of Docker on macOS, the sample program in this article may encounter problems in completing the operation smoothly on macOS. It is recommended to run it on **Linux or Windows**). -## 2. The Standalone Version +- Docker Version: >= 18.03 -### 2.1. Start the Server and Client +### Pulls the image -- Start the standalone OpenMLDB server +Execute the following command in the command line to pull the OpenMLDB image and start the Docker container: ```bash -# 1. initialize the environment and start standlone openmldb server -./init.sh standalone +docker run -it 4pdosc/openmldb:0.8.2 bash ``` -- Start the standalone OpenMLDB CLI client - -```bash -# Start the OpenMLDB CLI for the cluster deployed OpenMLDB -cd taxi-trip -../openmldb/bin/openmldb --host 127.0.0.1 --port 6527 +``` {note} +After successfully starting the container, all subsequent commands in this tutorial are executed inside the container by default. If you need to access the OpenMLDB server inside the container from outside the container, please refer to the [CLI/SDK-container onebox documentation](https://openmldb.ai/docs/zh/main/reference/ip_tips.html#id3). ``` -### 2.2. Steps +### Download sample data -```{important} -Unless otherwise specified, the commands shown below in this section are executed under the CLI by default (CLI commands start with the prompt `>` for distinction). -``` +Execute the following command inside the container to download the sample data used in the subsequent process (**this step can be skipped for versions 0.7.0 and later**, as the data is already stored in the image): -#### 2.2.1. Create the Database and Table - -```sql -> CREATE DATABASE demo_db; -> USE demo_db; -> CREATE TABLE demo_table1(c1 string, c2 int, c3 bigint, c4 float, c5 double, c6 timestamp, c7 date); +```bash +curl https://openmldb.ai/demo/data.parquet --output /work/taxi-trip/data/data.parquet ``` -#### 2.2.2. Offline Data Import +### Start the server and client -We should first import the previously downloaded sample data (the saved data in {ref}`download_data`) for offline feature extraction. - -```sql -> LOAD DATA INFILE 'data/data.csv' INTO TABLE demo_table1; -``` +Start the OpenMLDB server: -We can preview the data by using `SELECT`. - -```sql -> SELECT * FROM demo_table1 LIMIT 10; - ----- ---- ---- ---------- ----------- --------------- - ------------- - c1 c2 c3 c4 c5 c6 c7 - ----- ---- ---- ---------- ----------- --------------- - ------------- - aaa 12 22 2.200000 12.300000 1636097390000 2021-08-19 - aaa 11 22 1.200000 11.300000 1636097290000 2021-07-20 - dd 18 22 8.200000 18.300000 1636097990000 2021-06-20 - aa 13 22 3.200000 13.300000 1636097490000 2021-05-20 - cc 17 22 7.200000 17.300000 1636097890000 2021-05-26 - ff 20 22 9.200000 19.300000 1636098000000 2021-01-10 - bb 16 22 6.200000 16.300000 1636097790000 2021-05-20 - bb 15 22 5.200000 15.300000 1636097690000 2021-03-21 - bb 14 22 4.200000 14.300000 1636097590000 2021-09-23 - ee 19 22 9.200000 19.300000 1636097000000 2021-01-10 - ----- ---- ---- ---------- ----------- --------------- - ------------- +```bash +/work/init.sh ``` -#### 2.2.3. Offline Feature Extraction +Start the OpenMLDB CLI client: -Now we can execute SQL for feature extraction, and store the produced features in a file for subsequent model training. - -```sql -> SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW) INTO OUTFILE '/tmp/feature.csv'; +```bash +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client ``` -#### 2.2.4. Online SQL Deployment +After successfully starting OpenMLDB CLI, it will be displayed as shown in the following figure: -When the feature extraction script is ready, we can create an online SQL deployment for it. +![image](https://openmldb.ai/docs/zh/main/_images/cli_cluster.png) -```sql -> DEPLOY demo_data_service SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); -``` +## Use process -You can also view the SQL deployments through the command `SHOW DEPLOYMENTS`; +Referring to the core concepts, the process of using OpenMLDB generally includes six steps: creating databases and tables, importing offline data, offline feature computing, deploying SQL solutions, importing online data, and online real-time feature computing. -```sql -> SHOW DEPLOYMENTS; - --------- ------------------- - DB Deployment - --------- ------------------- - demo_db demo_data_service - --------- ------------------- -1 row in set +```{note} +Unless otherwise specified, the commands demonstrated below are executed by default in OpenMLDB CLI. ``` -Note that, this tutorial for the standalone version uses the same data for offline and online feature extraction. You can also use two different data sets for offline and online. Later on, for the cluster version, you will see that we must import another data set for online feature extraction. +### Step 1: Create database and table -#### 2.2.5. Exit the CLI +Create `demo_db` and table `demo_table1`: ```sql -> quit; +-- OpenMLDB CLI +CREATE DATABASE demo_db; +USE demo_db; +CREATE TABLE demo_table1(c1 string, c2 int, c3 bigint, c4 float, c5 double, c6 timestamp, c7 date); ``` -Up to this point, you have completed all the development and deployment steps based on the CLI, and have returned to the OS command line. - -#### 2.2.6. Real-Time Feature Extraction +### Step 2: Importing offline data -Real-time online services can be provided through the following Web APIs: +Switch to the offline execution mode, and import the sample data as offline data for offline feature calculation. +```sql +-- OpenMLDB CLI +USE demo_db; +SET @@execute_mode='offline'; +LOAD DATA INFILE 'file:///work/taxi-trip/data/data.parquet' INTO TABLE demo_table1 options(format='parquet', mode='append'); ``` -http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service - \___________/ \____/ \_____________/ - | | | - APIServer address Database name Deployment name -``` - -The input data of the real-time request accepts the `json` format, and we put a line of data into the `input` field of the request. Here is the example: - -```bash -curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d'{"input": [["aaa", 11, 22, 1.2, 1.3, 1635247427000, "2021-05-20"]]}' -``` - -The following is the expected return result for this query: - -```json -{"code":0,"msg":"ok","data":{"data":[["aaa",11,22]]}} -``` -You may refer to [3.3.8. Result Explanation](#3.3.8.-Result Explanation) at the end of the article for the result explanation. - -## 3. The Cluster Version -### 3.1. Preliminary Knowledge +Note that the `LOAD DATA` command is an asynchronous command by default. You can use the following command to check the task status and detailed logs: -The most significant differences between the cluster version and the standalone version are: +- To show the list of submitted tasks: SHOW JOBS -- Some commands in the cluster version are non-blocking tasks, including `LOAD DATA` in online mode, and `LOAD DATA`, `SELECT`, `SELECT INTO` commands in offline mode. After submitting a task for such a given command, you can use related commands such as `SHOW JOBS`, `SHOW JOB` to view the task progress. For details, see the [Offline Task Management](../reference/sql/task_manage/reference.md) document. -- The cluster version needs to maintain offline and online data separately, and cannot use the same data set as the stand-alone version. +- To show the detailed information of a task: SHOW JOB job_id (job_id can be obtained from the SHOW JOBS command) -The above differences will be demonstrated based on examples in the following tutorials. - -### 3.2. Start the Server and Client - -- Start the cluster version of the OpenMLDB server: - -```bash -# 1. initialize the environment and start cluster openmldb server -./init.sh -``` +- To show the task logs: SHOW JOBLOG job_id -- Start the OpenMLDB CLI: +Here, we use `SHOW JOBS` to check the task status. Please wait for the task to be successfully completed (the `state` is changed to `FINISHED`), and then proceed to the next step. -```bash -# Start the OpenMLDB CLI for the cluster deployed OpenMLDB -cd taxi-trip -../openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client -``` +![image-20220111141358808](https://openmldb.ai/docs/zh/main/_images/state_finished.png) -### 3.3. Steps +After the task is completed, if you want to preview the data, you can use the `SELECT * FROM demo_table1` statement. It is recommended to first set the offline command to synchronous mode (`SET @@sync_job=true`); otherwise, the command will submit an asynchronous task, and the result will be saved in the log file of the Spark task, which is less convenient to view. -```{important} -Unless otherwise specified, the commands shown below are executed under the OpenMLDB CLI by default (the CLI command starts with a prompt `>`). +```{note} +OpenMLDB also supports importing offline data through linked soft copies, without the need for hard data copying. Please refer to the parameter `deep_copy` in the [LOAD DATA INFILE documentation](https://openmldb.ai/docs/zh/main/openmldb_sql/dml/LOAD_DATA_STATEMENT.html) for more information. ``` -#### 3.3.1. Create Database and Table +### Step 3: Offline feature computing -- Create the database and table: +Assuming that we have determined the SQL script (`SELECT` statement) to be used for feature computation, we can use the following command for offline feature computation: ```sql -> CREATE DATABASE demo_db; -> USE demo_db; -> CREATE TABLE demo_table1(c1 string, c2 int, c3 bigint, c4 float, c5 double, c6 timestamp, c7 date); +-- OpenMLDB CLI +USE demo_db; +SET @@execute_mode='offline'; +SET @@sync_job=false; +SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW) INTO OUTFILE '/tmp/feature_data' OPTIONS(mode='overwrite'); ``` -- You may view the information of the database and table: +The `SELECT INTO` command is an asynchronous task. Use the `SHOW JOBS` command to check the task running status. Please wait for the task to complete successfully (`state` changes to `FINISHED`) before proceeding to the next step. -```sql -> desc demo_table1; - --- ------- ----------- ------ --------- - # Field Type Null Default - --- ------- ----------- ------ --------- - 1 c1 Varchar YES - 2 c2 Int YES - 3 c3 BigInt YES - 4 c4 Float YES - 5 c5 Double YES - 6 c6 Timestamp YES - 7 c7 Date YES - --- ------- ----------- ------ --------- - --- -------------------- ------ ---- ------ ------------- ---- - # name keys ts ttl ttl_type - --- -------------------- ------ ---- ------ ------------- ---- - 1 INDEX_0_1641939290 c1 - 0min kAbsoluteTime - --- -------------------- ------ ---- ------ ------------- ---- -``` +Note: -#### 3.3.2. Offline Data Import +- Similar to the `LOAD DATA` command, the `SELECT` command also runs asynchronously by default in offline mode. -- First, please switch to the offline execution mode by using the command `SET @@execute_mode='offline'`. -- Next, import the previously downloaded sample data (downloaded in {ref}`download_data`) as offline data for offline feature extraction. +- The `SELECT` statement is used to perform SQL-based feature extraction and store the generated features in the directory specified by the `OUTFILE` parameter as `feature_data`, which can be used for subsequent machine learning model training. -```sql -> USE demo_db; -> SET @@execute_mode='offline'; -> LOAD DATA INFILE 'file:///work/taxi-trip/data/data.parquet' INTO TABLE demo_table1 options(format='parquet', header=true, mode='append'); -``` +### Step 4: Deploying SQL solutions -Note that, the `LOAD DATA` command is non-blocking, and you can view the task progress through the task management commands such as `SHOW JOBS` and `SHOW JOBLOG`. +Switch to online preview mode, and deploy the explored SQL plan to online. The SQL plan is named `demo_data_service`, and the online SQL used for feature extraction needs to be consistent with the corresponding offline feature calculation SQL. ```sql -SHOW JOB $JOB_ID - -SHOW JOBLOG $JOB_ID +-- OpenMLDB CLI +SET @@execute_mode='online'; +USE demo_db; +DEPLOY demo_data_service SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); ``` -#### 3.3.3. Offline Feature Extraction - -You can now execute the SQL for feature extraction, and store the produced features in a file for subsequent model training. - -```sql -> USE demo_db; -> SET @@execute_mode='offline'; -> SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW) INTO OUTFILE '/tmp/feature_data'; -``` +After the deployment, you can use the command `SHOW DEPLOYMENTS` to view the deployed SQL solutions. -Note that, the `SELECT INTO` command in offline mode is non-blocking, and you can view the running progress through offline task management commands such as `SHOW JOBS`. +### Step 5: Importing online data -#### 3.3.4. Online SQL Deployment - -The SQL can be deployed online using the below command: - -```sql -> SET @@execute_mode='online'; -> DEPLOY demo_data_service SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); -``` - -After going online, you can view the deployed SQL solutions through the command `SHOW DEPLOYMENTS`; +Import the downloaded sample data as online data for online feature computation in online preview mode. ```sql -> SHOW DEPLOYMENTS; - --------- ------------------- - DB Deployment - --------- ------------------- - demo_db demo_data_service - --------- ------------------- -1 row in set +-- OpenMLDB CLI +USE demo_db; +SET @@execute_mode='online'; +LOAD DATA INFILE 'file:///work/taxi-trip/data/data.parquet' INTO TABLE demo_table1 options(format='parquet', header=true, mode='append'); ``` -#### 3.3.5. Online Data Import +`LOAD DATA` is an asynchronous command by default, you can use offline task management commands such as `SHOW JOBS` to check the progress. Please wait for the task to complete successfully (`state` changes to `FINISHED`) before proceeding to the next step. -First, you should switch to the online execution mode by using the command `SET @@execute_mode='online'`. Then in the online mode, you should import the previously downloaded sample data (downloaded in {ref}`download_data`) as online data for online feature extraction. - -```{note} -As the storage engines for the offline and online data are separate in the cluster version, you must import the data again in the online mode even the same data set is used. For most real-world applications, usually two different data sets are used for offline and online modes. -``` +After the task is completed, you can preview the online data: ```sql -> USE demo_db; -> SET @@execute_mode='online'; -> LOAD DATA INFILE 'file:///work/taxi-trip/data/data.parquet' INTO TABLE demo_table1 options(format='parquet', header=true, mode='append'); +-- OpenMLDB CLI +USE demo_db; +SET @@execute_mode='online'; +SELECT * FROM demo_table1 LIMIT 10; ``` -Note that, the online mode of `LOAD DATA` is a non-blocking command, and you can view the progress through the task management commands such as `SHOW JOBS`. +Note that currently, it is required to successfully deploy the SQL plan before importing online data; importing online data before deployment may cause deployment errors. ```{note} -For real-world applications, you will most likely need an additional step to import real-time data. Otherwise OpenMLDB cannot keep fresh data up to date. This step can be done using the SDKs or data stream [connectors](../use_case/pulsar_openmldb_connector_demo.md). +The tutorial skips the step of real-time data access after importing data. In practical scenarios, as time progresses, the latest real-time data needs to be updated in the online database. This can be achieved through the OpenMLDB SDK or online data source connectors such as Kafka, Pulsar, etc. ``` -#### 3.3.6. Exit the CLI +### Step 6: Online real-time feature computing + +The development and deployment work based on OpenMLDB CLI is completed. Next, you can make real-time feature calculation requests in real-time request mode. First, exit OpenMLDB CLI and return to the command line of the operating system. ```sql -> quit; +-- OpenMLDB CLI +quit; ``` -Up to this point, you have completed all the development and deployment steps based on the cluster version of OpenMLDB CLI, and have returned to the OS command line. - -#### 3.3.7. Real-Time Feature Extraction - -Real-time online services can be provided through the following Web APIs (the default http port for the APIServer is 9080): +According to the default deployment configuration, the http port for APIServer is 9080. Real-time online services can be provided through the following Web API: -``` +```bash http://127.0.0.1:9080/dbs/demo_db/deployments/demo_data_service - \___________/ \____/ \_____________/ - | | | - APIServer address Database name Deployment name + \___________/ \____/ \_____________/ + | | | + APIServer地址 Database名字 Deployment名字 ``` -The input data of the real-time request accepts the `json` format, and we put a line of data into the `input` field of the request. Here is the request example: +Real-time requests accept input data in JSON format. Here are two examples: putting a row of data in the `input` field of the request. + +**Example 1:** -Example 1: ```bash curl http://127.0.0.1:9080/dbs/demo_db/deployments/demo_data_service -X POST -d'{"input": [["aaa", 11, 22, 1.2, 1.3, 1635247427000, "2021-05-20"]]}' ``` -The following is the expected return result for this query (the computed features are stored in the `data` field): +Query the expected return result (the calculated features are stored in the `data` field): ```json {"code":0,"msg":"ok","data":{"data":[["aaa",11,22]]}} ``` -Example 2: +**Example 2:** + ```bash curl http://127.0.0.1:9080/dbs/demo_db/deployments/demo_data_service -X POST -d'{"input": [["aaa", 11, 22, 1.2, 1.3, 1637000000000, "2021-11-16"]]}' ``` -Expect: + +Expected query result: + ```json {"code":0,"msg":"ok","data":{"data":[["aaa",11,66]]}} ``` -#### 3.3.8. Result Explanation +### Description of real-time feature computing results + +The SQL execution for online real-time requests is different from batch processing mode. The request mode only performs SQL calculations on the data of the request row. In the previous example, it is the input of the POST request that serves as the request row. The specific process is as follows: Assuming that this row of data exists in the table `demo_table1`, and the following feature calculation SQL is executed on it: -The real-time feature extraction is executed in the request mode. Unlike the batch mode, the request mode will only perform SQL extractions on the request row. In the previous example, the POST input is used as the request row, assuming this row of data exists in the table demo_table1, and execute SQL on it: ```sql SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); ``` -The computation of Example 1 is logically done as follows: -1. According to the request line and the `PARTITION BY` in window clause, filter out the lines whose `c1` is "aaa", and sort them according to `c6` from small to large. So theoretically, the intermediate data table after partition sorting is shown in the following table. Among them, the first row after the request behavior is sorted. -``` - ----- ---- ---- ---------- ----------- --------------- ------------ - c1 c2 c3 c4 c5 c6 c7 - ----- ---- ---- ---------- ----------- --------------- ------------ - aaa 11 22 1.2 1.3 1635247427000 2021-05-20 - aaa 11 22 1.200000 11.300000 1636097290000 1970-01-01 - aaa 12 22 2.200000 12.300000 1636097890000 1970-01-01 - ----- ---- ---- ---------- ----------- --------------- ------------ -``` -2. The window range is `2 PRECEDING AND CURRENT ROW`, so we cut out the real window in the above table, the request row is the smallest row, the previous 2 rows do not exist, but the window contains the current row, so the window has only one row (the request row). -3. Window aggregation is performed, to sum `c3` of the data in the window (only one row), and we have the result 22. -The output is: -``` - ----- ---- ----------- - c1 c2 w1_c3_sum - ----- ---- ----------- - aaa 11 22 - ----- ---- ----------- -``` +**The calculation logic for Example 1 is as follows:** + +1. Filter rows in column c1 with the value "aaa" based on the `PARTITION BY` partition of the request row and window, and sort them in ascending order by column c6. Therefore, in theory, the intermediate data table sorted by partition should be as follows. The request row is the first row after sorting. -Example 2: -1. According to the request line and the `PARTITION BY` in window clause, filter out the lines whose `c1` is "aaa", and sort them according to `c6` from small to large. So theoretically, the intermediate data table after partition sorting is shown in the following table. The request row is the last row. +```sql +----- ---- ---- ---------- ----------- --------------- ------------ +c1 c2 c3 c4 c5 c6 c7 +----- ---- ---- ---------- ----------- --------------- ------------ +aaa 11 22 1.2 1.3 1635247427000 2021-05-20 +aaa 11 22 1.200000 11.300000 1636097290000 1970-01-01 +aaa 12 22 2.200000 12.300000 1636097890000 1970-01-01 +----- ---- ---- ---------- ----------- --------------- ------------ ``` - ----- ---- ---- ---------- ----------- --------------- ------------ - c1 c2 c3 c4 c5 c6 c7 - ----- ---- ---- ---------- ----------- --------------- ------------ - aaa 11 22 1.200000 11.300000 1636097290000 1970-01-01 - aaa 12 22 2.200000 12.300000 1636097890000 1970-01-01 - aaa 11 22 1.2 1.3 1637000000000 2021-11-16 - ----- ---- ---- ---------- ----------- --------------- ------------ + +2. The window range is `2 PRECEDING AND CURRENT ROW`, so in the above table, the actual window is extracted, and the request row is the smallest row with no preceding two rows, but the window includes the current row, so the window only contains the request row. +3. For window aggregation, the sum of column c3 for the data within the window (only one row) is calculated, resulting in 22. Therefore, the output result is: + +```sql +----- ---- ----------- +c1 c2 w1_c3_sum +----- ---- ----------- +aaa 11 22 +----- ---- ----------- ``` -2. The window range is `2 PRECEDING AND CURRENT ROW`, so we cut out the real window in the above table, the request row is the largest row, so the previous 2 rows are exist, and the window contains the current row, so the window has 3 rows. -3. Window aggregation is performed, to sum `c3` of the data in the window (3 rows), and we have the result 22*3=66. -The output is: +**The calculation logic for Example 2 is as follows:** + +1. According to the partition of the request line and window by `PARTITION BY`, select the rows where column c1 is "aaa" and sort them in ascending order by column c6. Therefore, theoretically, the intermediate data table after partition and sorting should be as shown in the table below. The request row is the last row after sorting. + +```sql +----- ---- ---- ---------- ----------- --------------- ------------ +c1 c2 c3 c4 c5 c6 c7 +----- ---- ---- ---------- ----------- --------------- ------------ +aaa 11 22 1.200000 11.300000 1636097290000 1970-01-01 +aaa 12 22 2.200000 12.300000 1636097890000 1970-01-01 +aaa 11 22 1.2 1.3 1637000000000 2021-11-16 +----- ---- ---- ---------- ----------- --------------- ------------ ``` - ----- ---- ----------- - c1 c2 w1_c3_sum - ----- ---- ----------- - aaa 11 66 - ----- ---- ----------- + +2. The window range is `2 PRECEDING AND CURRENT ROW`, so the actual window is extracted from the above table, and the two preceding rows of the request row exist, and the current row is also included. Therefore, there are three rows of data in the window. +3. For window aggregation, the sum of column c3 for the data within the window (three rows) is calculated, resulting in 22 + 22 + 22 = 66. Therefore, the output result is: + +```sql +----- ---- ----------- +c1 c2 w1_c3_sum +----- ---- ----------- +aaa 11 66 +----- ---- ----------- ``` + diff --git a/docs/en/quickstart/python_sdk.md b/docs/en/quickstart/python_sdk.md deleted file mode 100644 index efd6d8f551e..00000000000 --- a/docs/en/quickstart/python_sdk.md +++ /dev/null @@ -1,213 +0,0 @@ -# Python SDK Quickstart - -## 1. Install the Python SDK Package - -Install using `pip`. - -```bash -pip install openmldb -``` - -## 2. OpenMLDB DBAPI - -### 2.1 Create Connection - -When creating the connection, the database name is **required** to exist. If it does not exist, you need to create the database before the connection is created. Or you can create a connection without database, then `execute("USE ")` to set the database. - -````python -import openmldb.dbapi - -db = openmldb.dbapi.connect(zk="$zkcluster", zkPath="$zkpath") - -cursor = db.cursor() -```` - -### 2.2 Create Database - -````python -cursor.execute("CREATE DATABASE db1") -cursor.execute("USE db1") -```` - -### 2.3 Create Table - -````python -cursor.execute("CREATE TABLE t1 (col1 bigint, col2 date, col3 string, col4 string, col5 int, index(key=col3, ts=col1))") -```` - -### 2.4 Insert Data to Table - -````python -cursor.execute("INSERT INTO t1 VALUES(1000, '2020-12-25', 'guangdon', 'shenzhen', 1)") -```` - -### 2.5 Execute SQL Query - -````python -result = cursor.execute("SELECT * FROM t1") -print(result.fetchone()) -print(result.fetchmany(10)) -print(result.fetchall()) -```` - -### 2.6 Delete Table - -````python -cursor.execute("DROP TABLE t1") -```` - -### 2.7 Delete Database - -````python -cursor.execute("DROP DATABASE db1") -```` - -### 2.8 Close the Connection - -````python -cursor.close() -```` - -## 3. OpenMLDB SQLAlchemy - -### 3.1 Create Connection - -`create_engine('openmldb:///db_name?zk=zkcluster&zkPath=zkpath')` -When creating the connection, the database is **required** to exist. If it does not exist, you need to create the database before the connection is created. Or you can create a connection without database, then `execute("USE ")` to set the database. - -````python -import sqlalchemy as db - -engine = db.create_engine('openmldb:///?zk=127.0.0.1:2181&zkPath=/openmldb') -connection = engine.connect() -```` - -### 3.2 Create Database - -Create a database using the `connection.execute()`: - -````python -try: - connection.execute("CREATE DATABASE db1") -except Exception as e: - print(e) -connection.execute("USE db1") -```` - -### 3.3 Create Table - -Create a table using the `connection.execute()`: - -````python -try: - connection.execute("CREATE TABLE t1 ( col1 bigint, col2 date, col3 string, col4 string, col5 int, index(key=col3, ts=col1))") -except Exception as e: - print(e) -```` - -### 3.4 Insert Data into the Table - -Using the `connection.execute(ddl)` to execute the SQL insert statement to insert data to the table: - -````python -try: - connection.execute("INSERT INTO t1 VALUES(1000, '2020-12-25', 'guangdon', 'shenzhen', 1);") -except Exception as e: - print(e) -```` - -Using the `connection.execute(ddl, data)` to execute the insert statement of SQL with the placeholder, and the inserted data can be dynamically specified: - -````python -try: - insert = "INSERT INTO t1 VALUES(1002, '2020-12-27', ?, ?, 3);" - connection.execute(insert, ({"col3":"fujian", "col4":"fuzhou"})) -except Exception as e: - print(e) -```` - -### 3.5 Execute SQL Batch Query - -Using the `connection.execute(sql)` to execute SQL batch query statements: - -````python -try: - rs = connection.execute("SELECT * FROM t1") - for row in rs: - print(row) - rs = connection.execute("SELECT * FROM t1 WHERE col3 = ?;", ('hefei')) -except Exception as e: - print(e) -```` - -### 3.6 Execute SQL Queries in the Request Mode - -Using the `connection.execute(sql, request)` to execute SQLs in the request mode. You can put the input request row in the second parameter. - -````python -try: - rs = connection.execute("SELECT * FROM t1", ({"col1":9999, "col2":'2020-12-27', "col3":'zhejiang', "col4":'hangzhou', " col5":100})) -except Exception as e: - print(e) -```` - -### 3.7 Delete Table - -Using the `connection.execute(ddl)` interface to delete a table: - -````python -try: - connection.execute("DROP TABLE t1") -except Exception as e: - print(e) -```` - -### 3.8 Delete Database - -Using the `connection.execute(ddl)` interface to delete a database: - -````python -try: - connection.execute("DROP DATABASE db1") -except Exception as e: - print(e) -```` - -## 4. Notebook Magic Function - -OpenMLDB Python SDK supports Notebook magic function extension, you can use the following statement to register the function. - -````python -import openmldb - -db = openmldb.dbapi.connect(database='demo_db',zk='0.0.0.0:2181',zkPath='/openmldb') -openmldb.sql_magic.register(db) -```` - -The line magic function `%sql` and block magic function `%%sql` can then be used in Notebook. - -![img](images/openmldb_magic_function.png) - -## Example - -See [Python quickstart demo](https://github.com/4paradigm/OpenMLDB/tree/main/demo/python_quickstart/demo.py), including the usage of DBAPI and SQLAlchemy as shown previously. - -## Option - -Connect to cluster must set `zk` and `zkPath`. - -Connect to standalone must set `host` and `port`. - -Whether use dbapi or url to start Python client, optional options are the same with JAVA client, ref[JAVA SDK Option](./java_sdk.md#5-sdk-option)。 - -## Q&A -Q: How to solve `ImportError: dlopen(.._sql_router_sdk.so, 2): initializer function 0xnnnn not in mapped image for ` when use sqlalchemy? -A: The problem often happends when you import other complicate libs with `import openmldb`, the dl load is wrong. Please use the virtual env(e.g. conda) to test it, and make `import openmldb` to be the 1st import and `import sqlalchemy` to be the 2rd. - -If it can't help, please use `request` http to connect the apiserver. - -Q: How to solve the protobuf error? -``` -[libprotobuf FATAL /Users/runner/work/crossbow/crossbow/vcpkg/buildtrees/protobuf/src/23fa7edd52-3ba2225d30.clean/src/google/protobuf/stubs/common.cc:87] This program was compiled against version 3.6.1 of the Protocol Buffer runtime library, which is not compatible with the installed version (3.15.8). Contact the program author for an update. ... -``` -A: Maybe other libs includes a different version of protobuf, try virtual env(e.g. conda). diff --git a/docs/en/quickstart/rest_api.md b/docs/en/quickstart/rest_api.md deleted file mode 100644 index 00694c84da1..00000000000 --- a/docs/en/quickstart/rest_api.md +++ /dev/null @@ -1,312 +0,0 @@ -# REST APIs - -## Important Information - -- As REST APIs interact with the OpenMLDB servers via APIServer, the APIServer must be deployed. The APIServer is an optional module, please refer to [this document](../deploy/install_deploy.md#Deploy-APIServer) for the deployment. -- Currently, APIServer is mainly designed for function development and testing, thus it is not suggested to use it for performance benchmarking and deployed in production. There is no high-availability for the APIServer, and it also introduces overhead of networking and encoding/decoding. - -## Data Insertion - -The request URL: http://ip:port/dbs/{db_name}/tables/{table_name} - -HTTP method: PUT - -The request body: -```json -{ - "value": [ - [v1, v2, v3] - ] -} -``` - -+ Only one record can be inserted at a time. -+ The data layout should be arranged according to the schema strictly. - -**Example** - -```batch -curl http://127.0.0.1:8080/dbs/db/tables/trans -X PUT -d '{ -"value": [ - ["bb",24,34,1.5,2.5,1590738994000,"2020-05-05"] -]}' -``` -The response: - -```json -{ - "code":0, - "msg":"ok" -} -``` - -## Real-Time Feature Extraction - -The request URL: http://ip:port/dbs/{db_name}/deployments/{deployment_name} - -HTTP method: POST - -The request body: -- array style -``` -{ - "input": [["row0_value0", "row0_value1", "row0_value2"], ["row1_value0", "row1_value1", "row1_value2"], ...], - "need_schema": false -} -``` -- json style -```json -{ - "input": [ - {"col0":"row0_value0", "col1":"row0_value1", "col2":"row0_value2", "foo": "bar"}, - {"col0":"row1_value0", "col1":"row1_value1", "col2":"row1_value2"}, - ... - ] -} -``` - -+ Multiple rows of input are supported, whose returned values correspond to the fields in the `data.data` array. -+ A schema will be returned if `need_schema` is `true`. Optional, default is `false`. -+ If input is array style, the response data is array style. If input is json style, the response data is json style. DO NOT use multi styles in one request input. -+ Json style input can provide redundancy columns. - -**Example** - -- array style -```bash -curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d'{ - "input": [["aaa", 11, 22, 1.2, 1.3, 1635247427000, "2021-05-20"]] - }' -``` - -response: - -```json -{ - "code":0, - "msg":"ok", - "data":{ - "data":[["aaa",11,22]] - } -} -``` - -- json style -```bash -curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d'{ - "input": [{"c1":"aaa", "c2":11, "c3":22, "c4":1.2, "c5":1.3, "c6":1635247427000, "c7":"2021-05-20", "foo":"bar"}] - }' -``` - -response: - -```json -{ - "code":0, - "msg":"ok", - "data":{ - "data":[{"c1":"aaa","c2":11,"w1_c3_sum":22}] - } -} -``` - -## Query - -The request URL: http://ip:port/dbs/{db_name} - -HTTP method: POST - -request body: - -```json -{ - "mode": "", - "sql": "", - "input": { - "schema": [], - "data": [] - } -} -``` - -- "mode" can be: "offsync", "offasync", "online" -- "input" is optional -- "schema" all supported types (case-insensitive): -`Bool`, `Int16`, `Int32`, `Int64`, `Float`, `Double`, `String`, `Date` and `Timestamp`. - -**Request Body Example** - -- Normal query: - -```json -{ - "mode": "online", - "sql": "select 1" -} -``` - -The response: - -```json -{ - "code":0, - "msg":"ok", - "data": { - "schema":["Int32"], - "data":[[1]] - } -} -``` - -- Parameterized query: - -```json -{ - "mode": "online", - "sql": "SELECT c1, c2, c3 FROM demo WHERE c1 = ? AND c2 = ?", - "input": { - "schema": ["Int32", "String"], - "data": [1, "aaa"] - } -} -``` - -The response: - -```json -{ - "code":0, - "msg":"ok", - "data": { - "schema": ["Int32", "String", "Float"], - "data": [[1, "aaa", 1.2], [1, "aaa", 3.4]] - } -} -``` - -## Get Deployment Info - - -The request URL: http://ip:port/dbs/{db_name}/deployments/{deployment_name} - -HTTP method: Get - -The response: - -```json -{ - "code": 0, - "msg": "ok", - "data": { - "name": "", - "procedure": "", - "input_schema": [ - - ], - "input_common_cols": [ - - ], - "output_schema": [ - - ], - "output_common_cols": [ - - ], - "dbs": [ - - ], - "tables": [ - - ] - } -} -``` - - -## List Database - -The request URL: http://ip:port/dbs - -HTTP method: Get - -The response: - -```json -{ - "code": 0, - "msg": "ok", - "dbs": [ - - ] -} -``` - -## List Table - -The request URL: http://ip:port/dbs/{db}/tables - -HTTP method: Get - -The response: - -```json -{ - "code": 0, - "msg": "ok", - "tables": [ - { - "name": "", - "table_partition_size": 8, - "tid": , - "partition_num": 8, - "replica_num": 2, - "column_desc": [ - { - "name": "", - "data_type": "", - "not_null": false - } - ], - "column_key": [ - { - "index_name": "", - "col_name": [ - - ], - "ttl": { - - } - } - ], - "added_column_desc": [ - - ], - "format_version": 1, - "db": "", - "partition_key": [ - - ], - "schema_versions": [ - - ] - } - ] -} -``` - -## Refresh APIServer metadata cache - -The request URL: http://ip:port/refresh - -HTTP method: POST - -Empty request body. - -The response: - -```json -{ - "code":0, - "msg":"ok" -} -``` diff --git a/docs/en/quickstart/sdk/cpp_sdk.md b/docs/en/quickstart/sdk/cpp_sdk.md new file mode 100644 index 00000000000..59f4a284a63 --- /dev/null +++ b/docs/en/quickstart/sdk/cpp_sdk.md @@ -0,0 +1,117 @@ +# C++ SDK + +## C++SDK package compilation and installation + +```plain +git clone git@github.com:4paradigm/OpenMLDB.git +cd OpenMLDB +make && make install +``` + +## Write user code + +The following code demonstrates the basic use of C++ SDK. openmldb_api.h and sdk/result_set.h is the header file that must be included. + +```c++ +#include +#include +#include + +#include "openmldb_api.h" +#include "sdk/result_set.h" + +int main() +{ + //Create and initialize the OpenmldbHandler object + //Stand-alone version: parameter (ip, port), such as: OpenmldbHandler handler ("127.0.0.1", 6527); + //Cluster version: parameters (ip: port, path), such as: OpenmldbHandler handler ("127.0.0.1:6527", "/openmldb"); + //Take the stand-alone version as an example. + OpenmldbHandler handler("127.0.0.1", 6527); + + // Define database name + std::time_t t = std::time(0); + std::string db = "test_db" + std::to_string(t); + + // Create SQL statement and database + std::string sql = "create database " + db + ";"; + // Execute the SQL statement. The execute() function returns the bool value. A value of true indicates correct execution + std::cout << execute(handler, sql); + + // Create SQL statement and use database + sql = "use " + db + ";"; + std::cout << execute(handler, sql); + + // Create SQL statement and create table + sql = "create table test_table (" + "col1 string, col2 bigint," + "index(key=col1, ts=col2));"; + std::cout << execute(handler, sql); + + // Create SQL statements and insert rows into the table + sql = "insert test_table values(\"hello\", 1)"; + std::cout << execute(handler, sql); + sql = "insert test_table values(\"Hi~\", 2)"; + std::cout << execute(handler, sql); + + // Basic mode + sql = "select * from test_table;"; + std::cout << execute(handler, sql); + + // Get the latest SQL execution result + auto res = get_resultset(); + // Output SQL execution results + print_resultset(res); + // The output in this example should be: + // +-------+--------+ + // | col1 | col2 | + // +-------+--------+ + // | hello | 1 | + // | Hi~ | 2 | + // +-------+---------+ + + + + // Band-parameter mode + //The position of the parameters to be filled in the SQL statement is set to "?" to express + sql = "select * from test_table where col1 = ? ;"; + // Create a ParameterRow object for filling parameters + ParameterRow para(&handler); + // Fill in parameters + para << "Hi~"; + // Execute SQL statement execute_parameterized() function returns the bool value. A value of true indicates correct execution + execute_parameterized(handler, db, sql, para); + res = get_resultset(); + print_resultset(res); + // The output in this example should be: + // +------+--------+ + // | col1 | col2 | + // +------+-------+ + // | Hi~ | 2 | + // +------+--------+ + + + // Request mode + sql = "select col1, sum(col2) over w as w_col2_sum from test_table " + "window w as (partition by test_table.col1 order by test_table.col2 " + "rows between 2 preceding and current row);"; + RequestRow req(&handler, db, sql); + req << "Hi~" << 3l; + execute_request(req); + res = get_resultset(); + print_resultset(res); + // The output in this example should be: + // +------+--------------------+ + // | col1 | w_col2_sum | + // +------+--------------------+ + // | Hi~ | 5 | + // +------+--------------------+ +} +``` + +## Compile and run + +```plain +gcc .cxx -o -lstdc++ -std=c++17 -I/include -L/lib -lopenmldbsdk -lpthread +./ +``` + diff --git a/docs/en/quickstart/go_sdk.md b/docs/en/quickstart/sdk/go_sdk.md similarity index 62% rename from docs/en/quickstart/go_sdk.md rename to docs/en/quickstart/sdk/go_sdk.md index dd6eaca40f6..c30cbb2e502 100644 --- a/docs/en/quickstart/go_sdk.md +++ b/docs/en/quickstart/sdk/go_sdk.md @@ -1,46 +1,54 @@ -# Go SDK Quickstart +# Go SDK -**Requirements**: -- OpenMLDB Version >= 0.7.0 -- API server component is running +## Requirement -## 1. Install the Go SDK Package +- OpenMLDB version: >= v0.6.2 + +- Deploy and run APIServer (refer to [APIServer deployment](https://openmldb.ai/docs/zh/main/deploy/install_deploy.html#apiserver) document) + +## Go SDK package installment ```bash go get github.com/4paradigm/OpenMLDB/go ``` -## 2. API +## Go SDK usage -### 2.1 Connect +This section describes the basic use of Go SDK. -Go SDK connects to API server. +### Connect to OpenMLDB -```go +The Go SDK needs to be connected to the API server. + +```Go db, err := sql.Open("openmldb", "openmldb://127.0.0.1:8080/test_db") ``` -The DSN schema is +The format of data source (DSN) is: -``` +```plain openmldb://API_SERVER_HOST[:API_SERVER_PORT]/DB_NAME ``` -Note that an existed database is required. +You must connect to an existing database. -### 2.2 Create Table +### Create Table -```go +Create a table `demo`: + +```Go db.ExecContext(ctx, "CREATE TABLE demo(c1 int, c2 string);") ``` -### 2.3 Insert Value +### Insert data + +Insert date into table: ```go db.ExecContext(ctx, `INSERT INTO demo VALUES (1, "bb"), (2, "bb");`) ``` -### 2.4 Query +### Query ```go rows, err := db.QueryContext(ctx, `SELECT c1, c2 FROM demo;`) @@ -59,21 +67,21 @@ for rows.Next() { } ``` -### 3. An Example +## Example -```go +```Go package main import ( - "context" - "database/sql" + "context" + "database/sql" - // register openmldb driver - _ "github.com/4paradigm/OpenMLDB/go" + // 加载 OpenMLDB SDK + _ "github.com/4paradigm/OpenMLDB/go" ) func main() { - db, err := sql.Open("openmldb", "openmldb://127.0.0.1:8080/test_db") + db, err := sql.Open("openmldb", "openmldb://127.0.0.1:8080/test_db") if err != nil { panic(err) } @@ -106,3 +114,4 @@ func main() { } } ``` + diff --git a/docs/en/quickstart/sdk/index.rst b/docs/en/quickstart/sdk/index.rst new file mode 100644 index 00000000000..2eec974bee0 --- /dev/null +++ b/docs/en/quickstart/sdk/index.rst @@ -0,0 +1,12 @@ +============================= +SDK +============================= + +.. toctree:: + :maxdepth: 1 + + java_sdk + python_sdk + rest_api + go_sdk + cpp_sdk diff --git a/docs/en/quickstart/sdk/java_sdk.md b/docs/en/quickstart/sdk/java_sdk.md new file mode 100644 index 00000000000..629c715d5e6 --- /dev/null +++ b/docs/en/quickstart/sdk/java_sdk.md @@ -0,0 +1,465 @@ +# Java SDK + +## Java SDK package installation + +- Installing Java SDK package on Linux + + Configure the maven pom: + +```XML + + com.4paradigm.openmldb + openmldb-jdbc + 0.7.2 + + + com.4paradigm.openmldb + openmldb-native + 0.7.2 + +``` + +- Installing Java SDK package on Mac + + Configure the maven pom + +```XML + + com.4paradigm.openmldb + openmldb-jdbc + 0.7.2 + + + com.4paradigm.openmldb + openmldb-native + 0.7.2-macos + +``` + +Note: Since the openmldb-native package contains the C++ static library compiled for OpenMLDB, it is defaults to the Linux static library. For macOS, the version of openmldb-native should be changed to `0.7.2-macos`, while the version of openmldb-jdbc should remain unchanged. + +The macOS version of openmldb-native only supports macOS 12. To run it on macOS 11 or macOS 10.15, the openmldb-native package needs to be compiled from source code on the corresponding OS. For detailed compilation methods, please refer to [Concurrent Compilation of Java SDK](https://openmldb.ai/docs/zh/main/deploy/compile.html#java-sdk). + +To connect to the OpenMLDB service using the Java SDK, you can use JDBC (recommended) or connect directly through SqlClusterExecutor. The following will demonstrate both connection methods in order. + +## JDBC method + +The connection method using JDBC is as follows: + +```java +Class.forName("com._4paradigm.openmldb.jdbc.SQLDriver"); +// No database in jdbcUrl +Connection connection = DriverManager.getConnection("jdbc:openmldb:///?zk=localhost:6181&zkPath=/openmldb"); + +// Set database in jdbcUrl +Connection connection1 = DriverManager.getConnection("jdbc:openmldb:///test_db?zk=localhost:6181&zkPath=/openmldb"); +``` + +The database specified in the Connection address must exist when creating the connection. + +```{caution} +he default execution mode for JDBC Connection is `online`. +``` + +### Usage overview + +All SQL commands can be executed using `Statement`, both in online and offline modes. To switch between offline and online modes, use command `SET @@execute_mode='...';``. For example: + +```java +Statement stmt = connection.createStatement(); +stmt.execute("SET @@execute_mode='offline"); // Switch to offline mode +stmt.execute("SELECT * from t1"); // Offline select +ResultSet res = stmt.getResultSet(); // The ResultSet of the previous execute + +stmt.execute("SET @@execute_mode='online"); // Switch to online mode +res = stmt.executeQuery("SELECT * from t1"); // For online mode, select or executeQuery can directly obtain the ResultSet result. +``` + +The `LOAD DATA` command is an asynchronous command, and the returned ResultSet contains information such as the job ID and state. You can execute `show job ` to check if the job has been completed. Note that the ResultSet needs to execute `next()` method to move the cursor to the first row of data. + +It is also possible to change it to a synchronous command: + +```SQL +SET @@sync_job=true; +``` + +If the actual execution time of the synchronous command exceeds the default maximum idle wait time of 0.5 hours, please [adjust the configuration](https://openmldb.ai/docs/zh/main/openmldb_sql/ddl/SET_STATEMENT.html#id4). + +### PreparedStatement + +`PreparedStatement` supports `SELECT`, `INSERT`, and `DELETE` operations. Note that `INSERT` only supports online insertion. + +```java +PreparedStatement selectStatement = connection.prepareStatement("SELECT * FROM t1 WHERE id=?"); +PreparedStatement insertStatement = connection.prepareStatement("INSERT INTO t1 VALUES (?,?)"); +PreparedStatement insertStatement = connection.prepareStatement("DELETE FROM t1 WHERE id=?"); +``` + +## SqlClusterExecutor method + +### Creating a SqlClusterExecutor + +First, configure the OpenMLDB connection parameters. + +```java +SdkOption option = new SdkOption(); +option.setZkCluster("127.0.0.1:2181"); +option.setZkPath("/openmldb"); +option.setSessionTimeout(10000); +option.setRequestTimeout(60000); +``` + +Then, use SdkOption to create the Executor. + +```java +sqlExecutor = new SqlClusterExecutor(option); +``` + +`SqlClusterExecutor` execution of SQL operations is thread-safe, and in actual environments, a single `SqlClusterExecutor` can be created. However, since the execution mode (execute_mode) is an internal variable of `SqlClusterExecutor`, if you want to execute an offline command and an online command at the same time, unexpected results may occur. In this case, please use multiple `SqlClusterExecutors`. + +```{caution} +The default execution mode for SqlClusterExecutor is offline, which is different from the default mode for JDBC. +``` + +### Statement + +`SqlClusterExecutor` can obtain a `Statement` similar to the JDBC approach and can use `Statement::execute`. + +```java +java.sql.Statement state = sqlExecutor.getStatement(); +try { + state.execute("create database db_test"); +} catch (Exception e) { + e.printStackTrace(); +} finally { + state.close(); +} +``` + +Note that `SqlClusterExecutor` does not have the concept of a default database, so you need to execute a `USE ` command before you can continue to create tables. + +```java +java.sql.Statement state = sqlExecutor.getStatement(); +try { + state.execute("use db_test"); + String createTableSql = "create table trans(c1 string,\n" + + " c3 int,\n" + + " c4 bigint,\n" + + " c5 float,\n" + + " c6 double,\n" + + " c7 timestamp,\n" + + " c8 date,\n" + + " index(key=c1, ts=c7));"; + state.execute(createTableSql); +} catch (Exception e) { + e.printStackTrace(); +} finally { + state.close(); +} +``` + +#### Executing batch SQL queries with Statement + +Use the `Statement::execute` interface to execute batch SQL queries: + +```java +java.sql.Statement state = sqlExecutor.getStatement(); +try { + state.execute("use db_test"); + // The default execution mode for sqlExecutor is offline. If the mode has not been changed to online before, the execution mode needs to be set to online here. + state.execute("SET @@execute_mode='online;"); + // If the return value of execute is true, it means that the operation is successful, and the result can be obtained through getResultSet. + boolean ret = state.execute("select * from trans;"); + Assert.assertTrue(ret); + java.sql.ResultSet rs = state.getResultSet(); +} catch (Exception e) { + e.printStackTrace(); +} +``` + +Accessing query results: + +```java +// Accessing the ResultSet and printing the first three columns of data. +try { + while (result.next()) { + System.out.println(resultSet.getString(1) + "," + resultSet.getInt(2) "," + resultSet.getLong(3)); + } +} catch (SQLException e) { + e.printStackTrace(); +} finally { + try { + if (result != null) { + result.close(); + } + } catch (SQLException throwables) { + throwables.printStackTrace(); + } +} +``` + +### PreparedStatement + +`SqlClusterExecutor` can also obtain `PreparedStatement`, but you need to specify which type of `PreparedStatement` to obtain. For example, when using InsertPreparedStmt for insertion operations, there are three ways to do it. + +```{note} +Insert operation only supports online mode and is not affected by execution mode. The data will always be inserted into the online database. +``` + +#### Common Insert + +1. Use the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSql)` method to get the InsertPrepareStatement. +2. Use the `PreparedStatement::execute()` method to execute the insert statement. + +```java +String insertSql = "insert into trans values(\"aa\",23,33,1.4,2.4,1590738993000,\"2020-05-04\");"; +java.sql.PreparedStatement pstmt = null; +try { + pstmt = sqlExecutor.getInsertPreparedStmt(db, insertSql); + Assert.assertTrue(pstmt.execute()); +} catch (SQLException e) { + e.printStackTrace(); + Assert.fail(); +} finally { + if (pstmt != null) { + try { + // After using the PrepareStatement, it must be closed. + pstmt.close(); + } catch (SQLException throwables) { + throwables.printStackTrace(); + } + } +} +``` + +#### Insert With Placeholder + +1. Get InsertPrepareStatement by calling `SqlClusterExecutor::getInsertPreparedStmt(db, insertSqlWithPlaceHolder)` interface. +2. Use `PreparedStatement::setType(index, value)` interface to fill in data to the InsertPrepareStatement. Note that the index starts from 1. +3. Use `PreparedStatement::execute()` interface to execute the insert statement. + +```{note} +When the conditions of the PreparedStatement are the same, you can repeatedly call the set method of the same object to fill in data before executing execute(). There is no need to create a new PreparedStatement object. +``` + +```java +String insertSqlWithPlaceHolder = "insert into trans values(\"aa\", ?, 33, ?, 2.4, 1590738993000, \"2020-05-04\");"; +java.sql.PreparedStatement pstmt = null; +try { + pstmt = sqlExecutor.getInsertPreparedStmt(db, insertSqlWithPlaceHolder); + pstmt.setInt(1, 24); + pstmt.setInt(2, 1.5f); + pstmt.execute(); +} catch (SQLException e) { + e.printStackTrace(); + Assert.fail(); +} finally { + if (pstmt != null) { + try { + // After using the PrepareStatement, it must be closed. + pstmt.close(); + } catch (SQLException throwables) { + throwables.printStackTrace(); + } + } +} +``` + +```{note} +After execute, the cached data will be cleared and it is not possible to retry execute. +``` + +#### Batch Insert With Placeholder + +1. To use batch insert, first obtain the InsertPrepareStatement using the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSqlWithPlaceHolder)` interface. +2. Then use the `PreparedStatement::setType(index, value)` interface to fill data into the InsertPrepareStatement. +3. Use the `PreparedStatement::addBatch()` interface to complete filling for one row. +4. Continue to use `setType(index, value)` and `addBatch()` to fill multiple rows. +5. Use the `PreparedStatement::executeBatch()` interface to complete the batch insertion. + +```java +String insertSqlWithPlaceHolder = "insert into trans values(\"aa\", ?, 33, ?, 2.4, 1590738993000, \"2020-05-04\");"; +java.sql.PreparedStatement pstmt = null; +try { + pstmt = sqlExecutor.getInsertPreparedStmt(db, insertSqlWithPlaceHolder); + pstmt.setInt(1, 24); + pstmt.setInt(2, 1.5f); + pstmt.addBatch(); + pstmt.setInt(1, 25); + pstmt.setInt(2, 1.7f); + pstmt.addBatch(); + pstmt.executeBatch(); +} catch (SQLException e) { + e.printStackTrace(); + Assert.fail(); +} finally { + if (pstmt != null) { + try { + // After using the PrepareStatement, it must be closed. + pstmt.close(); + } catch (SQLException throwables) { + throwables.printStackTrace(); + } + } +} +``` + +```{note} +After executeBatch(), all cached data will be cleared and it's not possible to retry executeBatch(). +``` + +### Execute SQL request query + +`RequestPreparedStmt` is a unique query mode (not supported by JDBC). This mode requires both the selectSql and a request data, so you need to provide the SQL and set the request data using setType when calling `getRequestPreparedStmt`. + +There are three steps to execute a SQL request query: + +```{note} +request queries only support online mode and are not affected by the execution mode. They must be performed as online request queries. +``` + +1. Use the `SqlClusterExecutor::getRequestPreparedStmt(db, selectSql)` interface to obtain a RequestPrepareStatement. +2. Call the `PreparedStatement::setType(index, value)` interface to set the request data. Please call the `setType` interface and configure valid values based on the data type corresponding to each column in the data table. +3. Call the `Statement::executeQuery()` interface to execute the request-style query statement. + +```java +String selectSql = "SELECT c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM trans WINDOW w1 AS " + + "(PARTITION BY trans.c1 ORDER BY trans.c7 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW);"; +PreparedStatement pstmt = null; +ResultSet resultSet = null; +/* +c1 string,\n" + + " c3 int,\n" + + " c4 bigint,\n" + + " c5 float,\n" + + " c6 double,\n" + + " c7 timestamp,\n" + + " c8 date,\n" + +*/ +try { + // Step 1,get RequestPrepareStatement + pstmt = sqlExecutor.getRequestPreparedStmt(db, selectSql); + + // Step 2,To execute the request mode, you need to set a row of request data in the RequestPreparedStatement. + pstmt.setString(1, "bb"); + pstmt.setInt(2, 24); + pstmt.setLong(3, 34l); + pstmt.setFloat(4, 1.5f); + pstmt.setDouble(5, 2.5); + pstmt.setTimestamp(6, new Timestamp(1590738994000l)); + pstmt.setDate(7, Date.valueOf("2020-05-05")); + + // Calling executeQuery will execute the select sql, and then put the result in the resultSet + resultSet = pstmt.executeQuery(); + + // Access resultSet + Assert.assertEquals(resultSet.getMetaData().getColumnCount(), 3); + Assert.assertTrue(resultSet.next()); + Assert.assertEquals(resultSet.getString(1), "bb"); + Assert.assertEquals(resultSet.getInt(2), 24); + Assert.assertEquals(resultSet.getLong(3), 34); + + // The return result set of the ordinary request query contains only one row of results. Therefore, the result of the second call to resultSet. next() is false + Assert.assertFalse(resultSet.next()); + +} catch (SQLException e) { + e.printStackTrace(); + Assert.fail(); +} finally { + try { + if (resultSet != null) { + // result用完之后需要close + resultSet.close(); + } + if (pstmt != null) { + pstmt.close(); + } + } catch (SQLException throwables) { + throwables.printStackTrace(); + } +} +``` + +### Delete all data of a key under the specified index + +There are two ways to delete data through the Java SDK: + +- Execute delete SQL directly + +- Use delete PreparedStatement + +Note that this can only delete data under one index, not all indexes. Refer to [DELETE function boundary](https://openmldb.ai/docs/zh/main/quickstart/function_boundary.html#delete) for details. + +```java +java.sql.Statement state = router.getStatement(); +try { + String sql = "DELETE FROM t1 WHERE col2 = 'key1';"; + state.execute(sql); + sql = "DELETE FROM t1 WHERE col2 = ?;"; + java.sql.PreparedStatement p1 = router.getDeletePreparedStmt("test", sql); + p1.setString(1, "key2"); + p1.executeUpdate(); + p1.close(); +} catch (Exception e) { + e.printStackTrace(); + Assert.fail(); +} finally { + try { + state.close(); + } catch (Exception e) { + e.printStackTrace(); + } +} +``` + +### A complete example of using SqlClusterExecutor + +Refer to the [Java quickstart demo](https://github.com/4paradigm/OpenMLDB/tree/main/demo/java_quickstart/demo). If it is used on macOS, please use openmldb-native of macOS version and increase the dependency of openmldb-native. + +Compile and run: + +``` +mvn package +java -cp target/demo-1.0-SNAPSHOT.jar com.openmldb.demo.App +``` + +## SDK Configuration Details + +You must fill in `zkCluster` and `zkPath` (set method or the configuration `foo=bar` after `?` in JDBC). + +### Optional configuration + +| Optional configuration | Description | +| ---------------------- | ------------------------------------------------------------ | +| enableDebug | The default is false. Enable the debug log of hybridse (note that it is not the global debug log). You can view more logs of sql compilation and operation. However, not all of these logs are collected by the client. You need to view the tablet server logs. | +| requestTimeout | The default is 60000 ms. This timeout is the rpc timeout sent by the client, except for those sent to the taskmanager (the rpc timeout of the job is controlled by the variable `job_timeout`). | +| glogLevel | The default is 0, which is similar to the minloglevel of the glog. The `INFO/WARNING/ERROR/FATAL` log corresponds to `0/1/2/3` respectively. 0 means to print INFO and the level on. | +| glogDir | The default is empty. When the log directory is empty, it is printed to stderr. This is referring to the console. | +| maxSqlCacheSize | The default is 50, the maximum number of sql caches for a single execution mode of a single database on the client. If there is an error caused by cache obsolescence, you can increase this size to avoid the problem. | +| sessionTimeout | Default 10000 ms, session timeout of zk | +| zkLogLevel | By default, 3, `0/1/2/3/4` respectively means that `all zk logs/error/warn/info/debug are prohibited` | +| zkLogFile | The default is empty, which is printed to stdout. | +| sparkConfPath | The default is empty. You can change the spark conf used by the job through this configuration without configuring the taskmanager to restart. | + +## SQL verification + +The Java client supports the correct verification of SQL to verify whether it is executable. It is divided into batch and request modes. + +- `ValidateSQLInBatch` can verify whether SQL can be executed at the offline end. +- `ValidateSQLInRequest` can verify whether SQL can be deployed online. + +Both interfaces need to go through all table schemas required by SQL. Currently, only single db is supported. Please do not use `db.table` format in SQL statements. + +For example, verify SQL `select count (c1) over w1 from t3 window w1 as (partition by c1 order by c2 rows between unbounded preceding and current row);`, In addition to this statement, you need to go through in the schema of table `t3` as the second parameter schemaMaps. The format is Map, key is the name of the db, and value is all the table schemas (maps) of each db. In fact, only a single db is supported, so there is usually only one db here, as shown in db3 below. The table schema map key under db is table name, and the value is com._ 4paradigm.openmldb.sdk.Schema, consisting of the name and type of each column. + +```java +Map> schemaMaps = new HashMap<>(); +Map dbSchema = new HashMap<>(); +dbSchema = new HashMap<>(); +dbSchema.put("t3", new Schema(Arrays.asList(new Column("c1", Types.VARCHAR), new Column("c2", Types.BIGINT)))); +schemaMaps.put("db3", dbSchema); +List ret = SqlClusterExecutor.validateSQLInRequest("select count(c1) over w1 from t3 window "+ + "w1 as(partition by c1 order by c2 rows between unbounded preceding and current row);", schemaMaps); +Assert.assertEquals(ret.size(), 0); +``` + diff --git a/docs/en/quickstart/sdk/python_sdk.md b/docs/en/quickstart/sdk/python_sdk.md new file mode 100644 index 00000000000..421f6b8ff93 --- /dev/null +++ b/docs/en/quickstart/sdk/python_sdk.md @@ -0,0 +1,241 @@ +# Python SDK + +## Python SDK package installation + +Execute the following command to install the Python SDK package: + +```bash +pip install openmldb +``` + +## OpenMLDB DBAPI usage + +This section demonstrates the basic use of the OpenMLDB DB API. + +### Create connection + +Parameter `db_name` name must exist, and the database must be created before the connection is created. To continue, create a connection without a database and then use the database db through the `execute ("USE")` command. + +```python +import openmldb.dbapi +db = openmldb.dbapi.connect(zk="$zkcluster", zkPath="$zkpath") +cursor = db.cursor() +``` + +#### Configuration Details + +Zk and zkPath configuration are required. + +The Python SDK can be used through OpenMLDB DBAPI/SQLAlchemy. The optional configurations are basically the same as those of the Java client. Please refer to the [Java SDK configuration](https://openmldb.ai/docs/zh/main/quickstart/sdk/java_sdk.html#sdk) for details. + +### Create database + +Create database `db1`: + +```python +cursor.execute("CREATE DATABASE db1") +cursor.execute("USE db1") +``` + +### Create table + +Create table `t1`: + +```python +cursor.execute("CREATE TABLE t1 (col1 bigint, col2 date, col3 string, col4 string, col5 int, index(key=col3, ts=col1))") +``` + +### Insert data into the table + +Insert one sentence of data into the table: + +```python +cursor.execute("INSERT INTO t1 VALUES(1000, '2020-12-25', 'guangdon', 'shenzhen', 1)") +``` + +### Execute SQL query + +```python +result = cursor.execute("SELECT * FROM t1") +print(result.fetchone()) +print(result.fetchmany(10)) +print(result.fetchall()) +``` + +### SQL batch request query + +```python +#In the Batch Request mode, the input parameters of the interface are“SQL”, “Common_Columns”, “Request_Columns” +result = cursor.batch_row_request("SELECT * FROM t1", ["col1","col2"], ({"col1": 2000, "col2": '2020-12-22', "col3": 'fujian', "col4":'xiamen', "col5": 2})) +print(result.fetchone()) +``` + +### Delete table + +Delete table `t1`: + +```python +cursor.execute("DROP TABLE t1") +``` + +### Delete database + +Delete database `db1`: + +```python +cursor.execute("DROP DATABASE db1") +``` + +### Close connection + +```python +cursor.close() +``` + +## OpenMLDB SQLAlchemy usage + +This section demonstrates using the Python SDK through OpenMLDB SQLAlchemy. + +### Create connection + +```python +create_engine('openmldb:///db_name?zk=zkcluster&zkPath=zkpath') +``` + +Parameter `db_name` must exist, and the database must be created before the connection is created. First, create a connection without a database, and then use the database `db` through the `execute ("USE")` command. + +```python +import sqlalchemy as db +engine = db.create_engine('openmldb:///?zk=127.0.0.1:2181&zkPath=/openmldb') +connection = engine.connect() +``` + +### Create database + +Use the `connection.execute()` interface to create database `db1`: + +```python +try: + connection.execute("CREATE DATABASE db1") +except Exception as e: + print(e) + +connection.execute("USE db1") +``` + +### Create table + +Use the `connection.execute()` interface to create table `t1`: + +```python +try: + connection.execute("CREATE TABLE t1 ( col1 bigint, col2 date, col3 string, col4 string, col5 int, index(key=col3, ts=col1))") +except Exception as e: + print(e) +``` + +### Insert data into the table + +Use the `connection.execute (ddl)` interface to execute the SQL insert statement, and you can insert data into the table: + +```python +try: + connection.execute("INSERT INTO t1 VALUES(1000, '2020-12-25', 'guangdon', 'shenzhen', 1);") +except Exception as e: + print(e) +``` + +Use the `connection.execute (ddl, data)` interface to execute the insert statement of SQL with placeholder. You can specify the insert data dynamically or insert multiple rows: + +```python +try: + insert = "INSERT INTO t1 VALUES(1002, '2020-12-27', ?, ?, 3);" + connection.execute(insert, ({"col3":"fujian", "col4":"fuzhou"})) + connection.execute(insert, [{"col3":"jiangsu", "col4":"nanjing"}, {"col3":"zhejiang", "col4":"hangzhou"}]) +except Exception as e: + print(e) +``` + +### Execute SQL batch query + +Use the `connection.execute (sql)` interface to execute SQL batch query statements: + +```python +try: + rs = connection.execute("SELECT * FROM t1") + for row in rs: + print(row) + rs = connection.execute("SELECT * FROM t1 WHERE col3 = ?;", ('hefei')) + rs = connection.execute("SELECT * FROM t1 WHERE col3 = ?;",[('hefei'), ('shanghai')]) +except Exception as e: + print(e) +``` + +### Execute SQL request query + +Use the `connection.execute (sql, request)` interface to execute the SQL request query. You can put the input data into the second parameter of the execute function: + +```python +try: + rs = connection.execute("SELECT * FROM t1", ({"col1":9999, "col2":'2020-12-27', "col3":'zhejiang', "col4":'hangzhou', "col5":100})) +except Exception as e: + print(e) +``` + +### Delete table + +Use the `connection.execute (ddl)` interface to delete table `t1`: + +```python +try: + connection.execute("DROP TABLE t1") +except Exception as e: + print(e) +``` + +### Delete database + +Use the connection.execute(ddl)interface to delete database `db1`: + +```python +try: + connection.execute("DROP DATABASE db1") +except Exception as e: + print(e) +``` + +## Notebook Magic Function usage + +The OpenMLDB Python SDK supports the expansion of Notebook magic function. Use the following statement to register the function. + +```python +import openmldb +db = openmldb.dbapi.connect(database='demo_db',zk='0.0.0.0:2181',zkPath='/openmldb') +openmldb.sql_magic.register(db) +``` + +Then you can use line magic function `%sql` and block magic function `%%sql` in Notebook. + +![img](https://openmldb.ai/docs/zh/main/_images/openmldb_magic_function.png) + +## The complete usage example + +Refer to the [Python quickstart demo](https://github.com/4paradigm/OpenMLDB/tree/main/demo/python_quickstart/demo.py), including the above DBAPI and SQLAlchemy usage. + +## common problem + +- **What do I do when error** `ImportError:dlopen (.. _sql_router_sdk. so, 2): initializer function 0xnnnn not in mapped image for` **appears when using SQLAlchemy?** + +In addition to import openmldb, you may also import other third-party libraries, which may cause confusion in the loading order. Due to the complexity of the system, you can try to use the virtual env environment (such as conda) to avoid interference. In addition, import openmldb before importing sqlalchemy, and ensure that the two imports are in the first place. + +If the error still occur, it is recommended to connect to OpenMLDB by using request http to connect to apiserver. + +occur + +- **What do I do if Python SDK encountered the following problems?** + +```plain +[libprotobuf FATAL /Users/runner/work/crossbow/crossbow/vcpkg/buildtrees/protobuf/src/23fa7edd52-3ba2225d30.clean/src/google/protobuf/stubs/common.cc:87] This program was compiled against version 3.6.1 of the Protocol Buffer runtime library, which is not compatible with the installed version (3.15.8). Contact the program author for an update. ... +``` + +This problem may be due to the introduction of other versions of protobuf in other libraries. You can try to use the virtual env environment (such as conda). diff --git a/docs/en/quickstart/sdk/rest_api.md b/docs/en/quickstart/sdk/rest_api.md new file mode 100644 index 00000000000..7d8f3c4a881 --- /dev/null +++ b/docs/en/quickstart/sdk/rest_api.md @@ -0,0 +1,327 @@ +# REST API + +## Important information + +REST APIs interact with the services of APIServer and OpenMLDB, so the APIServer module must be properly deployed to be used effectively. APIServer is an optional module during installation and deployment. Refer to the APIServer deployment document. + +At this stage, APIServer is mainly used for functional testing, not recommended for performance testing, nor recommended for the production environment. The default deployment of APIServer does not have a high availability mechanism at present and introduces additional network and codec overhead. + +## Data insertion + +Request address: http://ip:port/dbs/{db_name}/tables/{table_name} + +Request method: PUT + +The requestor: + +```JSON + { + "value": [ + [v1, v2, v3] + ] + } +``` + +- Currently, it only supports inserting one piece of data. + +- The data should be arranged in strict accordance with the schema. + +Sample request data: + +```bash +curl http://127.0.0.1:8080/dbs/db/tables/trans -X PUT -d '{ +"value": [ + ["bb",24,34,1.5,2.5,1590738994000,"2020-05-05"] +]}' +``` + +Response: + +```json +{ + "code":0, + "msg":"ok" +} +``` + +## Real-time feature computing + +Request address: http://ip:port/dbs/{db_name}/deployments/{deployment_name} + +Request method: POST + +Requestor + +- Array format: + +```json +{ + "input": [["row0_value0", "row0_value1", "row0_value2"], ["row1_value0", "row1_value1", "row1_value2"], ...], + "need_schema": false +} +``` + +- JSON format: + +```json +{ + "input": [ + {"col0":"row0_value0", "col1":"row0_value1", "col2":"row0_value2", "foo": "bar"}, + {"col0":"row1_value0", "col1":"row1_value1", "col2":"row1_value2"}, + ... + ] +} +``` + +- It can support multiple rows, and its results correspond to the array of data.data fields in the returned response one by one. + +- need_schema can be set to true, and the schema with output results will be returned. For optional parameter, the default is false. + +- When the input is in array format/ JSON format, the returned result is also in array format/ JSON format. The input requested at a time only supports one format. Please do not mix formats. + +- Input data in JSON format can have redundant columns. + +**Sample request data** + +Example 1: Array format + +```plain +curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d'{ + "input": [["aaa", 11, 22, 1.2, 1.3, 1635247427000, "2021-05-20"]] + }' +``` + +Response: + +```JSON +{ + "code":0, + "msg":"ok", + "data":{ + "data":[["aaa",11,22]] + } +} +``` + +Example 2: JSON format + +```JSON +curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d'{ + "input": [{"c1":"aaa", "c2":11, "c3":22, "c4":1.2, "c5":1.3, "c6":1635247427000, "c7":"2021-05-20", "foo":"bar"}] + }' +``` + +Response: + +```JSON +{ + "code":0, + "msg":"ok", + "data":{ + "data":[{"c1":"aaa","c2":11,"w1_c3_sum":22}] + } +} +``` + +## Query + +Request address: http://ip:port/dbs/ {db_name} + +Request method: POST + +Requestor: + +```JSON +{ + "mode": "", + "sql": "", + "input": { + "schema": [], + "data": [] + } +} +``` + +Request parameters: + +| Parameters | Type | Requirement | Description | +| ---------- | ------ | ----------- | ------------------------------------------------------------ | +| mode | String | Yes | Available for `offsync` , `offasync`, `online` | +| sql | String | Yes | | +| input | Object | No | | +| schema | Array | No | Support data types (case insensitive): `Bool`, `Int16`, `Int32`, `Int64`, `Float`, `Double`, `String`, `Date and Timestamp` | +| data | Array | No | | + +**Sample request data** + +Example 1: General query + +```JSON +{ + "mode": "online", + "sql": "select 1" +} +``` + +Response: + +```JSON +{ + "code":0, + "msg":"ok", + "data": { + "schema":["Int32"], + "data":[[1]] + } +} +``` + +Example 2: Parametric query + +```JSON +{ + "mode": "online", + "sql": "SELECT c1, c2, c3 FROM demo WHERE c1 = ? AND c2 = ?", + "input": { + "schema": ["Int32", "String"], + "data": [1, "aaa"] + } +} +``` + +Response: + +```json +{ + "code":0, + "msg":"ok", + "data": { + "schema": ["Int32", "String", "Float"], + "data": [[1, "aaa", 1.2], [1, "aaa", 3.4]] + } +} +``` + +## Query deployment information + +Request address: http://ip:port/dbs/{db_name}/deployments/{deployment_name} + +Request method: GET + +Response: + +```JSON +{ + "code": 0, + "msg": "ok", + "data": { + "name": "", + "procedure": "", + "input_schema": [ + + ], + "input_common_cols": [ + + ], + "output_schema": [ + + ], + "output_common_cols": [ + + ], + "dbs": [ + + ], + "tables": [ + + ] + } +} +``` + +## Acquire all library names + +Request address: http://ip:port/dbs + +Request method: GET + +Response: + +```json +{ + "code": 0, + "msg": "ok", + "dbs": [ + + ] +} +``` + +## Acquire all table names + +Request address: http://ip:port/dbs/{db}/tables + +Request method: GET + +Response: + +```json +{ + "code": 0, + "msg": "ok", + "tables": [ + { + "name": "", + "table_partition_size": 8, + "tid": , + "partition_num": 8, + "replica_num": 2, + "column_desc": [ + { + "name": "", + "data_type": "", + "not_null": false + } + ], + "column_key": [ + { + "index_name": "", + "col_name": [ + + ], + "ttl": { + + } + } + ], + "added_column_desc": [ + + ], + "format_version": 1, + "db": "", + "partition_key": [ + + ], + "schema_versions": [ + + ] + } + ] +} +``` + +## Refresh APIServer metadata cache + +Request address: http://ip:port/refresh + +Request method: POST + +Response: + +```json +{ + "code":0, + "msg":"ok" +} +``` + From 4286d7942bfcc80099284ca96131c2d2f2711b14 Mon Sep 17 00:00:00 2001 From: emo-coder <122784380+emo-coder@users.noreply.github.com> Date: Mon, 31 Jul 2023 16:12:02 +0800 Subject: [PATCH 013/111] refactor: rm boost (#3397) --- src/sdk/file_option_parser.h | 9 ++++--- src/sdk/mini_cluster_batch_bm.cc | 10 +++---- src/sdk/mini_cluster_bm.cc | 11 ++++---- src/sdk/sql_cluster_router.cc | 5 ++-- src/sdk/sql_cluster_test.cc | 9 ++++--- src/sdk/sql_sdk_base_test.cc | 45 ++++++++++++++++---------------- 6 files changed, 47 insertions(+), 42 deletions(-) diff --git a/src/sdk/file_option_parser.h b/src/sdk/file_option_parser.h index 87602764288..7080c7e9c7c 100644 --- a/src/sdk/file_option_parser.h +++ b/src/sdk/file_option_parser.h @@ -22,6 +22,7 @@ #include #include +#include "absl/strings/ascii.h" #include "base/status.h" #include "node/node_manager.h" @@ -44,7 +45,7 @@ class FileOptionsParser { ::openmldb::base::Status Parse(const std::shared_ptr& options_map) { for (const auto& item : *options_map) { std::string key = item.first; - boost::to_lower(key); + absl::AsciiStrToLower(&key); auto pair = check_map_.find(key); if (pair == check_map_.end()) { return {openmldb::base::kSQLCmdRunError, "this option " + key + " is not currently supported"}; @@ -102,7 +103,7 @@ class FileOptionsParser { std::function CheckFormat() { return [this](const hybridse::node::ConstNode* node) { format_ = node->GetAsString(); - boost::to_lower(format_); + absl::AsciiStrToLower(&format_); if (format_ != "csv" && format_ != "parquet") { return false; } @@ -149,7 +150,7 @@ class FileOptionsParser { std::function CheckMode() { return [this](const hybridse::node::ConstNode* node) { mode_ = node->GetAsString(); - boost::to_lower(mode_); + absl::AsciiStrToLower(&mode_); if (mode_ != "error_if_exists" && mode_ != "overwrite" && mode_ != "append") { return false; } @@ -180,7 +181,7 @@ class ReadFileOptionsParser : public FileOptionsParser { std::function CheckLoadMode() { return [this](const hybridse::node::ConstNode* node) { load_mode_ = node->GetAsString(); - boost::to_lower(load_mode_); + absl::AsciiStrToLower(&load_mode_); if (load_mode_ != "local" && load_mode_ != "cluster") { return false; } diff --git a/src/sdk/mini_cluster_batch_bm.cc b/src/sdk/mini_cluster_batch_bm.cc index 3132e9b88d2..1b5227f3367 100644 --- a/src/sdk/mini_cluster_batch_bm.cc +++ b/src/sdk/mini_cluster_batch_bm.cc @@ -17,8 +17,8 @@ #include #include +#include "absl/strings/str_replace.h" #include "benchmark/benchmark.h" -#include "boost/algorithm/string.hpp" #include "codec/fe_row_codec.h" #include "schema/schema_adapter.h" #include "sdk/base.h" @@ -690,7 +690,7 @@ FROM {0} last join {1} order by {1}.x7 on {0}.c1 = {1}.x1 and {0}.c7 - {ts_diff} >= {1}.x7 last join {2} order by {2}.x7 on {0}.c2 = {2}.x2 and {0}.c7 - {ts_diff} >= {2}.x7; )"); - boost::replace_all(sql_case.sql_str_, "{ts_diff}", std::to_string(state.range(0) * 1000 / 2)); + absl::StrReplaceAll({{"{ts_diff}", std::to_string(state.range(0) * 1000 / 2)}}, &sql_case.sql_str_); BM_RequestQuery(state, sql_case, mc); } static void BM_SimpleLastJoinTable4(benchmark::State& state) { // NOLINT @@ -705,7 +705,7 @@ last join {2} order by {2}.x7 on {0}.c2 = {2}.x2 and {0}.c7 - {ts_diff} >= {2}.x last join {3} order by {3}.x7 on {0}.c3 = {3}.x3 and {0}.c7 - {ts_diff} >= {3}.x7 last join {4} order by {4}.x7 on {0}.c4 = {4}.x4 and {0}.c7 - {ts_diff} >= {4}.x7; )"; - boost::replace_all(sql_case.sql_str_, "{ts_diff}", std::to_string(state.range(0) * 1000 / 2)); + absl::StrReplaceAll({{"{ts_diff}", std::to_string(state.range(0) * 1000 / 2)}}, &sql_case.sql_str_); BM_RequestQuery(state, sql_case, mc); } @@ -731,7 +731,7 @@ window w1 as (PARTITION BY {0}.c1 ORDER BY {0}.c7 ROWS_RANGE BETWEEN 10d PRECEDI last join {1} as t2 order by t2.x7 on c2 = t2.x2 and c7 - {ts_diff} >= t2.x7 ; )"; - boost::replace_all(sql_case.sql_str_, "{ts_diff}", std::to_string(state.range(0) * 1000 / 2)); + absl::StrReplaceAll({{"{ts_diff}", std::to_string(state.range(0) * 1000 / 2)}}, &sql_case.sql_str_); BM_RequestQuery(state, sql_case, mc); } static void BM_SimpleWindowOutputLastJoinTable4(benchmark::State& state) { // NOLINT @@ -757,7 +757,7 @@ static void BM_SimpleWindowOutputLastJoinTable4(benchmark::State& state) { // N last join {1} as t3 order by t3.x7 on c3 = t3.x3 and c7 - {ts_diff} >= t3.x7 last join {1} as t4 order by t4.x7 on c4 = t4.x4 and c7 - {ts_diff} >= t4.x7; )"; - boost::replace_all(sql_case.sql_str_, "{ts_diff}", std::to_string(state.range(0) * 1000 / 2)); + absl::StrReplaceAll({{"{ts_diff}", std::to_string(state.range(0) * 1000 / 2)}}, &sql_case.sql_str_); BM_RequestQuery(state, sql_case, mc); } diff --git a/src/sdk/mini_cluster_bm.cc b/src/sdk/mini_cluster_bm.cc index 24d50076a97..7f771ed3e3c 100644 --- a/src/sdk/mini_cluster_bm.cc +++ b/src/sdk/mini_cluster_bm.cc @@ -19,7 +19,8 @@ #include #include -#include "boost/algorithm/string.hpp" +#include "absl/strings/ascii.h" +#include "absl/strings/str_replace.h" #include "codec/fe_row_codec.h" #include "sdk/base.h" #include "sdk/sql_router.h" @@ -58,9 +59,9 @@ void BM_RequestQuery(benchmark::State& state, hybridse::sqlcase::SqlCase& sql_ca std::string sql = sql_case.sql_str(); for (size_t i = 0; i < sql_case.inputs().size(); i++) { std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(sql, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &sql); } - boost::to_lower(sql); + absl::AsciiStrToLower(&sql); LOG(INFO) << sql; auto request_row = router->GetRequestRow(sql_case.db(), sql, &status); if (status.code != 0) { @@ -224,9 +225,9 @@ void BM_BatchRequestQuery(benchmark::State& state, hybridse::sqlcase::SqlCase& s std::string sql = sql_case.sql_str(); for (size_t i = 0; i < sql_case.inputs().size(); i++) { std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(sql, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &sql); } - boost::to_lower(sql); + absl::AsciiStrToLower(&sql); LOG(INFO) << sql; auto request_row = router->GetRequestRow(sql_case.db(), sql, &status); if (status.code != 0) { diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 2c7f473d6eb..3c768151aa2 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -27,6 +27,7 @@ #include "absl/strings/ascii.h" #include "absl/strings/numbers.h" #include "absl/strings/str_cat.h" +#include "absl/strings/str_split.h" #include "absl/strings/strip.h" #include "absl/strings/substitute.h" #include "absl/types/span.h" @@ -3649,10 +3650,10 @@ hybridse::sdk::Status SQLClusterRouter::HandleLongWindows( std::string base_db = table_pair.begin()->first; std::string base_table = table_pair.begin()->second; std::vector windows; - boost::split(windows, long_window_param, boost::is_any_of(",")); + windows = absl::StrSplit(long_window_param, ","); for (auto& window : windows) { std::vector window_info; - boost::split(window_info, window, boost::is_any_of(":")); + window_info = absl::StrSplit(window, ":"); if (window_info.size() == 2) { long_window_map[window_info[0]] = window_info[1]; diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index 6d794692846..b63f26feaf0 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -20,6 +20,7 @@ #include #include +#include "absl/strings/match.h" #include "absl/strings/str_cat.h" #include "base/glog_wrapper.h" #include "codec/fe_row_codec.h" @@ -883,10 +884,10 @@ TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkDistributeBatchRequestSinglePartitionT /* TEST_P(SQLSDKQueryTest, sql_sdk_distribute_request_single_partition_test) { auto sql_case = GetParam(); LOG(INFO) << "ID: " << sql_case.id() << ", DESC: " << sql_case.desc(); - if (boost::contains(sql_case.mode(), "rtidb-unsupport") || - boost::contains(sql_case.mode(), "rtidb-request-unsupport") || - boost::contains(sql_case.mode(), "request-unsupport") || - boost::contains(sql_case.mode(), "cluster-unsupport")) { + if (absl::StrContains(sql_case.mode(), "rtidb-unsupport") || + absl::StrContains(sql_case.mode(), "rtidb-request-unsupport") || + absl::StrContains(sql_case.mode(), "request-unsupport") || + absl::StrContains(sql_case.mode(), "cluster-unsupport")) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } diff --git a/src/sdk/sql_sdk_base_test.cc b/src/sdk/sql_sdk_base_test.cc index d50eb440e46..5d715f37fc4 100644 --- a/src/sdk/sql_sdk_base_test.cc +++ b/src/sdk/sql_sdk_base_test.cc @@ -70,7 +70,7 @@ void SQLSDKTest::CreateTables(hybridse::sqlcase::SqlCase& sql_case, // NOLINT std::string create; if (sql_case.BuildCreateSqlFromInput(i, &create, partition_num) && !create.empty()) { std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(create, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &create); LOG(INFO) << create; router->ExecuteDDL(input_db_name, create, &status); ASSERT_TRUE(router->RefreshCatalog()); @@ -112,12 +112,12 @@ void SQLSDKTest::CreateProcedure(hybridse::sqlcase::SqlCase& sql_case, // NOLIN std::string sql = sql_case.sql_str(); for (size_t i = 0; i < sql_case.inputs().size(); i++) { std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(sql, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &sql); } - boost::replace_all( - sql, "{auto}", - hybridse::sqlcase::SqlCase::GenRand("auto_t") + std::to_string(static_cast(time(NULL)))); - boost::trim(sql); + absl::StrReplaceAll( + {{"{auto}", + hybridse::sqlcase::SqlCase::GenRand("auto_t") + std::to_string(static_cast(time(NULL)))}}, &sql); + absl::RemoveExtraAsciiWhitespace(&sql); LOG(INFO) << sql; sql_case.sp_name_ = hybridse::sqlcase::SqlCase::GenRand("auto_sp") + std::to_string(static_cast(time(NULL))); @@ -139,7 +139,7 @@ void SQLSDKTest::CreateProcedure(hybridse::sqlcase::SqlCase& sql_case, // NOLIN for (size_t i = 0; i < sql_case.inputs_.size(); i++) { std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(create_sp, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &create_sp); } LOG(INFO) << create_sp; if (!create_sp.empty()) { @@ -220,7 +220,7 @@ void SQLSDKTest::InsertTables(hybridse::sqlcase::SqlCase& sql_case, // NOLINT } auto insert = inserts[row_idx]; std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(insert, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &insert); DLOG(INFO) << insert; if (!insert.empty()) { for (int j = 0; j < sql_case.inputs()[i].repeat_; j++) { @@ -294,15 +294,16 @@ void SQLSDKTest::BatchExecuteSQL(hybridse::sqlcase::SqlCase& sql_case, // NOLIN std::string sql = sql_case.sql_str(); for (size_t i = 0; i < sql_case.inputs().size(); i++) { std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(sql, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &sql); } - boost::replace_all( - sql, "{auto}", - hybridse::sqlcase::SqlCase::GenRand("auto_t") + std::to_string(static_cast(time(NULL)))); + absl::StrReplaceAll( + {{"{auto}", + hybridse::sqlcase::SqlCase::GenRand("auto_t") + std::to_string(static_cast(time(NULL)))}}, &sql); for (size_t endpoint_id = 0; endpoint_id < tbEndpoints.size(); endpoint_id++) { - boost::replace_all(sql, "{tb_endpoint_" + std::to_string(endpoint_id) + "}", tbEndpoints.at(endpoint_id)); + absl::StrReplaceAll({{"{tb_endpoint_" + std::to_string(endpoint_id) + "}", tbEndpoints.at(endpoint_id)}}, &sql); } - std::string lower_sql = boost::to_lower_copy(sql); + std::string lower_sql = sql; + absl::AsciiStrToLower(&lower_sql); if (absl::StartsWith(lower_sql, "select") || absl::StartsWith(lower_sql, "with")) { std::shared_ptr rs; // parameterized batch query @@ -381,12 +382,12 @@ void SQLSDKQueryTest::RequestExecuteSQL(hybridse::sqlcase::SqlCase& sql_case, / std::string sql = sql_case.sql_str(); for (size_t i = 0; i < sql_case.inputs().size(); i++) { std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(sql, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &sql); } - boost::replace_all(sql, "{auto}", hybridse::sqlcase::SqlCase::GenRand("auto_t") + - std::to_string(static_cast(time(NULL)))); + absl::StrReplaceAll({{"{auto}", hybridse::sqlcase::SqlCase::GenRand("auto_t") + + std::to_string(static_cast(time(NULL)))}}, &sql); std::string lower_sql = sql; - boost::to_lower(lower_sql); + absl::AsciiStrToLower(&lower_sql); if (absl::StartsWith(lower_sql, "select") || absl::StartsWith(lower_sql, "with")) { auto request_row = router->GetRequestRow(sql_case.db(), sql, &status); // success check @@ -526,13 +527,13 @@ void SQLSDKQueryTest::BatchRequestExecuteSQLWithCommonColumnIndices(hybridse::sq std::string sql = sql_case.sql_str(); for (size_t i = 0; i < sql_case.inputs().size(); i++) { std::string placeholder = "{" + std::to_string(i) + "}"; - boost::replace_all(sql, placeholder, sql_case.inputs()[i].name_); + absl::StrReplaceAll({{placeholder, sql_case.inputs()[i].name_}}, &sql); } - boost::replace_all(sql, "{auto}", hybridse::sqlcase::SqlCase::GenRand("auto_t") + - std::to_string(static_cast(time(NULL)))); + absl::StrReplaceAll({{"{auto}", hybridse::sqlcase::SqlCase::GenRand("auto_t") + + std::to_string(static_cast(time(NULL)))}}, &sql); LOG(INFO) << sql; std::string lower_sql = sql; - boost::to_lower(lower_sql); + absl::AsciiStrToLower(&lower_sql); if (!(absl::StartsWith(lower_sql, "select") || absl::StartsWith(lower_sql, "with"))) { FAIL() << "sql not support in request mode"; } From 7fd58aed011d1a06dc5f701e2481b07800f3868c Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Thu, 3 Aug 2023 19:44:46 +0800 Subject: [PATCH 014/111] feat(udf): json functions (#3414) --- CMakeLists.txt | 3 + CPPLINT.cfg | 2 +- contrib/CMakeLists.txt | 28 + contrib/simdjson/CMakeLists.txt | 10 + contrib/simdjson/README | 1 + contrib/simdjson/simdjson.cpp | 16585 +++++++++ contrib/simdjson/simdjson.h | 32088 ++++++++++++++++++ hybridse/src/CMakeLists.txt | 3 +- hybridse/src/codegen/udf_ir_builder_test.cc | 10 + hybridse/src/udf/default_defs/json_defs.cc | 77 + hybridse/src/udf/default_udf_library.cc | 1 + hybridse/src/udf/default_udf_library.h | 2 + 12 files changed, 48808 insertions(+), 2 deletions(-) create mode 100644 contrib/CMakeLists.txt create mode 100644 contrib/simdjson/CMakeLists.txt create mode 100644 contrib/simdjson/README create mode 100644 contrib/simdjson/simdjson.cpp create mode 100644 contrib/simdjson/simdjson.h create mode 100644 hybridse/src/udf/default_defs/json_defs.cc diff --git a/CMakeLists.txt b/CMakeLists.txt index 394ca89e329..62ff8443380 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -137,6 +137,9 @@ include(FetchContent) set(FETCHCONTENT_QUIET OFF) include(farmhash) +# contrib libs +add_subdirectory(contrib EXCLUDE_FROM_ALL) + if (CMAKE_SYSTEM_NAME STREQUAL "Linux") set(OS_LIB ${CMAKE_THREAD_LIBS_INIT} rt) set(BRPC_LIBS ${BRPC_LIBRARY} ${Protobuf_LIBRARIES} ${GLOG_LIBRARY} ${GFLAGS_LIBRARY} ${UNWIND_LIBRARY} ${OPENSSL_LIBRARIES} ${LEVELDB_LIBRARY} ${Z_LIBRARY} ${SNAPPY_LIBRARY} dl pthread ${OS_LIB}) diff --git a/CPPLINT.cfg b/CPPLINT.cfg index 47ceb0d5347..be7f74a1e2d 100644 --- a/CPPLINT.cfg +++ b/CPPLINT.cfg @@ -1,2 +1,2 @@ linelength=120 -filter=-build/c++11 +filter=-build/c++11,-build/include_subdir diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt new file mode 100644 index 00000000000..78ce52e026b --- /dev/null +++ b/contrib/CMakeLists.txt @@ -0,0 +1,28 @@ +set_property(DIRECTORY PROPERTY EXCLUDE_FROM_ALL 1) + +# add_contrib cmake_folder[ base_folder1[, ...base_folderN]] +# or add_contrib base_folder +function(add_contrib cmake_folder) + if (ARGN) + set(base_folders ${ARGN}) + else() + set(base_folders ${cmake_folder}) + endif() + + foreach (base_folder ${base_folders}) + if (NOT IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/${base_folder}") + message(FATAL_ERROR "No such base folder '${base_folder}' (for '${cmake_folder}' cmake folder). Typo in the base folder name?") + endif() + + file(GLOB contrib_files "${base_folder}/*") + if (NOT contrib_files) + message(FATAL_ERROR "submodule ${base_folder} is missing or empty.") + endif() + endforeach() + + message(STATUS "Adding contrib module ${base_folders} (configuring with ${cmake_folder})") + add_subdirectory (${cmake_folder}) +endfunction() + +add_contrib(simdjson) + diff --git a/contrib/simdjson/CMakeLists.txt b/contrib/simdjson/CMakeLists.txt new file mode 100644 index 00000000000..c626e2ec863 --- /dev/null +++ b/contrib/simdjson/CMakeLists.txt @@ -0,0 +1,10 @@ +add_library(_simdjson ${CMAKE_CURRENT_SOURCE_DIR}/simdjson.cpp) +target_include_directories(_simdjson SYSTEM PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/") + +# simdjson is using its own CPU dispatching and get confused if we enable AVX/AVX2 flags. +if(ARCH_AMD64) + target_compile_options(_simdjson PRIVATE -mno-avx -mno-avx2) +endif() + +add_library(op_contrib::simdjson ALIAS _simdjson) + diff --git a/contrib/simdjson/README b/contrib/simdjson/README new file mode 100644 index 00000000000..16007e4600b --- /dev/null +++ b/contrib/simdjson/README @@ -0,0 +1 @@ +smidjson v3.2.1: https://github.com/simdjson/simdjson/releases/tag/v3.2.1 diff --git a/contrib/simdjson/simdjson.cpp b/contrib/simdjson/simdjson.cpp new file mode 100644 index 00000000000..bb265297e21 --- /dev/null +++ b/contrib/simdjson/simdjson.cpp @@ -0,0 +1,16585 @@ +/* auto-generated on 2023-07-06 21:34:14 -0400. Do not edit! */ +/* begin file src/simdjson.cpp */ +#include "simdjson.h" + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_UNDESIRED_WARNINGS + +/* begin file src/to_chars.cpp */ +#include +#include +#include +#include + +namespace simdjson { +namespace internal { +/*! +implements the Grisu2 algorithm for binary to decimal floating-point +conversion. +Adapted from JSON for Modern C++ + +This implementation is a slightly modified version of the reference +implementation which may be obtained from +http://florian.loitsch.com/publications (bench.tar.gz). +The code is distributed under the MIT license, Copyright (c) 2009 Florian +Loitsch. For a detailed description of the algorithm see: [1] Loitsch, "Printing +Floating-Point Numbers Quickly and Accurately with Integers", Proceedings of the +ACM SIGPLAN 2010 Conference on Programming Language Design and Implementation, +PLDI 2010 [2] Burger, Dybvig, "Printing Floating-Point Numbers Quickly and +Accurately", Proceedings of the ACM SIGPLAN 1996 Conference on Programming +Language Design and Implementation, PLDI 1996 +*/ +namespace dtoa_impl { + +template +Target reinterpret_bits(const Source source) { + static_assert(sizeof(Target) == sizeof(Source), "size mismatch"); + + Target target; + std::memcpy(&target, &source, sizeof(Source)); + return target; +} + +struct diyfp // f * 2^e +{ + static constexpr int kPrecision = 64; // = q + + std::uint64_t f = 0; + int e = 0; + + constexpr diyfp(std::uint64_t f_, int e_) noexcept : f(f_), e(e_) {} + + /*! + @brief returns x - y + @pre x.e == y.e and x.f >= y.f + */ + static diyfp sub(const diyfp &x, const diyfp &y) noexcept { + + return {x.f - y.f, x.e}; + } + + /*! + @brief returns x * y + @note The result is rounded. (Only the upper q bits are returned.) + */ + static diyfp mul(const diyfp &x, const diyfp &y) noexcept { + static_assert(kPrecision == 64, "internal error"); + + // Computes: + // f = round((x.f * y.f) / 2^q) + // e = x.e + y.e + q + + // Emulate the 64-bit * 64-bit multiplication: + // + // p = u * v + // = (u_lo + 2^32 u_hi) (v_lo + 2^32 v_hi) + // = (u_lo v_lo ) + 2^32 ((u_lo v_hi ) + (u_hi v_lo )) + + // 2^64 (u_hi v_hi ) = (p0 ) + 2^32 ((p1 ) + (p2 )) + // + 2^64 (p3 ) = (p0_lo + 2^32 p0_hi) + 2^32 ((p1_lo + + // 2^32 p1_hi) + (p2_lo + 2^32 p2_hi)) + 2^64 (p3 ) = + // (p0_lo ) + 2^32 (p0_hi + p1_lo + p2_lo ) + 2^64 (p1_hi + + // p2_hi + p3) = (p0_lo ) + 2^32 (Q ) + 2^64 (H ) = (p0_lo ) + + // 2^32 (Q_lo + 2^32 Q_hi ) + 2^64 (H ) + // + // (Since Q might be larger than 2^32 - 1) + // + // = (p0_lo + 2^32 Q_lo) + 2^64 (Q_hi + H) + // + // (Q_hi + H does not overflow a 64-bit int) + // + // = p_lo + 2^64 p_hi + + const std::uint64_t u_lo = x.f & 0xFFFFFFFFu; + const std::uint64_t u_hi = x.f >> 32u; + const std::uint64_t v_lo = y.f & 0xFFFFFFFFu; + const std::uint64_t v_hi = y.f >> 32u; + + const std::uint64_t p0 = u_lo * v_lo; + const std::uint64_t p1 = u_lo * v_hi; + const std::uint64_t p2 = u_hi * v_lo; + const std::uint64_t p3 = u_hi * v_hi; + + const std::uint64_t p0_hi = p0 >> 32u; + const std::uint64_t p1_lo = p1 & 0xFFFFFFFFu; + const std::uint64_t p1_hi = p1 >> 32u; + const std::uint64_t p2_lo = p2 & 0xFFFFFFFFu; + const std::uint64_t p2_hi = p2 >> 32u; + + std::uint64_t Q = p0_hi + p1_lo + p2_lo; + + // The full product might now be computed as + // + // p_hi = p3 + p2_hi + p1_hi + (Q >> 32) + // p_lo = p0_lo + (Q << 32) + // + // But in this particular case here, the full p_lo is not required. + // Effectively we only need to add the highest bit in p_lo to p_hi (and + // Q_hi + 1 does not overflow). + + Q += std::uint64_t{1} << (64u - 32u - 1u); // round, ties up + + const std::uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32u); + + return {h, x.e + y.e + 64}; + } + + /*! + @brief normalize x such that the significand is >= 2^(q-1) + @pre x.f != 0 + */ + static diyfp normalize(diyfp x) noexcept { + + while ((x.f >> 63u) == 0) { + x.f <<= 1u; + x.e--; + } + + return x; + } + + /*! + @brief normalize x such that the result has the exponent E + @pre e >= x.e and the upper e - x.e bits of x.f must be zero. + */ + static diyfp normalize_to(const diyfp &x, + const int target_exponent) noexcept { + const int delta = x.e - target_exponent; + + return {x.f << delta, target_exponent}; + } +}; + +struct boundaries { + diyfp w; + diyfp minus; + diyfp plus; +}; + +/*! +Compute the (normalized) diyfp representing the input number 'value' and its +boundaries. +@pre value must be finite and positive +*/ +template boundaries compute_boundaries(FloatType value) { + + // Convert the IEEE representation into a diyfp. + // + // If v is denormal: + // value = 0.F * 2^(1 - bias) = ( F) * 2^(1 - bias - (p-1)) + // If v is normalized: + // value = 1.F * 2^(E - bias) = (2^(p-1) + F) * 2^(E - bias - (p-1)) + + static_assert(std::numeric_limits::is_iec559, + "internal error: dtoa_short requires an IEEE-754 " + "floating-point implementation"); + + constexpr int kPrecision = + std::numeric_limits::digits; // = p (includes the hidden bit) + constexpr int kBias = + std::numeric_limits::max_exponent - 1 + (kPrecision - 1); + constexpr int kMinExp = 1 - kBias; + constexpr std::uint64_t kHiddenBit = std::uint64_t{1} + << (kPrecision - 1); // = 2^(p-1) + + using bits_type = typename std::conditional::type; + + const std::uint64_t bits = reinterpret_bits(value); + const std::uint64_t E = bits >> (kPrecision - 1); + const std::uint64_t F = bits & (kHiddenBit - 1); + + const bool is_denormal = E == 0; + const diyfp v = is_denormal + ? diyfp(F, kMinExp) + : diyfp(F + kHiddenBit, static_cast(E) - kBias); + + // Compute the boundaries m- and m+ of the floating-point value + // v = f * 2^e. + // + // Determine v- and v+, the floating-point predecessor and successor if v, + // respectively. + // + // v- = v - 2^e if f != 2^(p-1) or e == e_min (A) + // = v - 2^(e-1) if f == 2^(p-1) and e > e_min (B) + // + // v+ = v + 2^e + // + // Let m- = (v- + v) / 2 and m+ = (v + v+) / 2. All real numbers _strictly_ + // between m- and m+ round to v, regardless of how the input rounding + // algorithm breaks ties. + // + // ---+-------------+-------------+-------------+-------------+--- (A) + // v- m- v m+ v+ + // + // -----------------+------+------+-------------+-------------+--- (B) + // v- m- v m+ v+ + + const bool lower_boundary_is_closer = F == 0 && E > 1; + const diyfp m_plus = diyfp(2 * v.f + 1, v.e - 1); + const diyfp m_minus = lower_boundary_is_closer + ? diyfp(4 * v.f - 1, v.e - 2) // (B) + : diyfp(2 * v.f - 1, v.e - 1); // (A) + + // Determine the normalized w+ = m+. + const diyfp w_plus = diyfp::normalize(m_plus); + + // Determine w- = m- such that e_(w-) = e_(w+). + const diyfp w_minus = diyfp::normalize_to(m_minus, w_plus.e); + + return {diyfp::normalize(v), w_minus, w_plus}; +} + +// Given normalized diyfp w, Grisu needs to find a (normalized) cached +// power-of-ten c, such that the exponent of the product c * w = f * 2^e lies +// within a certain range [alpha, gamma] (Definition 3.2 from [1]) +// +// alpha <= e = e_c + e_w + q <= gamma +// +// or +// +// f_c * f_w * 2^alpha <= f_c 2^(e_c) * f_w 2^(e_w) * 2^q +// <= f_c * f_w * 2^gamma +// +// Since c and w are normalized, i.e. 2^(q-1) <= f < 2^q, this implies +// +// 2^(q-1) * 2^(q-1) * 2^alpha <= c * w * 2^q < 2^q * 2^q * 2^gamma +// +// or +// +// 2^(q - 2 + alpha) <= c * w < 2^(q + gamma) +// +// The choice of (alpha,gamma) determines the size of the table and the form of +// the digit generation procedure. Using (alpha,gamma)=(-60,-32) works out well +// in practice: +// +// The idea is to cut the number c * w = f * 2^e into two parts, which can be +// processed independently: An integral part p1, and a fractional part p2: +// +// f * 2^e = ( (f div 2^-e) * 2^-e + (f mod 2^-e) ) * 2^e +// = (f div 2^-e) + (f mod 2^-e) * 2^e +// = p1 + p2 * 2^e +// +// The conversion of p1 into decimal form requires a series of divisions and +// modulos by (a power of) 10. These operations are faster for 32-bit than for +// 64-bit integers, so p1 should ideally fit into a 32-bit integer. This can be +// achieved by choosing +// +// -e >= 32 or e <= -32 := gamma +// +// In order to convert the fractional part +// +// p2 * 2^e = p2 / 2^-e = d[-1] / 10^1 + d[-2] / 10^2 + ... +// +// into decimal form, the fraction is repeatedly multiplied by 10 and the digits +// d[-i] are extracted in order: +// +// (10 * p2) div 2^-e = d[-1] +// (10 * p2) mod 2^-e = d[-2] / 10^1 + ... +// +// The multiplication by 10 must not overflow. It is sufficient to choose +// +// 10 * p2 < 16 * p2 = 2^4 * p2 <= 2^64. +// +// Since p2 = f mod 2^-e < 2^-e, +// +// -e <= 60 or e >= -60 := alpha + +constexpr int kAlpha = -60; +constexpr int kGamma = -32; + +struct cached_power // c = f * 2^e ~= 10^k +{ + std::uint64_t f; + int e; + int k; +}; + +/*! +For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached +power-of-ten c = f_c * 2^e_c, such that the exponent of the product w * c +satisfies (Definition 3.2 from [1]) + alpha <= e_c + e + q <= gamma. +*/ +inline cached_power get_cached_power_for_binary_exponent(int e) { + // Now + // + // alpha <= e_c + e + q <= gamma (1) + // ==> f_c * 2^alpha <= c * 2^e * 2^q + // + // and since the c's are normalized, 2^(q-1) <= f_c, + // + // ==> 2^(q - 1 + alpha) <= c * 2^(e + q) + // ==> 2^(alpha - e - 1) <= c + // + // If c were an exact power of ten, i.e. c = 10^k, one may determine k as + // + // k = ceil( log_10( 2^(alpha - e - 1) ) ) + // = ceil( (alpha - e - 1) * log_10(2) ) + // + // From the paper: + // "In theory the result of the procedure could be wrong since c is rounded, + // and the computation itself is approximated [...]. In practice, however, + // this simple function is sufficient." + // + // For IEEE double precision floating-point numbers converted into + // normalized diyfp's w = f * 2^e, with q = 64, + // + // e >= -1022 (min IEEE exponent) + // -52 (p - 1) + // -52 (p - 1, possibly normalize denormal IEEE numbers) + // -11 (normalize the diyfp) + // = -1137 + // + // and + // + // e <= +1023 (max IEEE exponent) + // -52 (p - 1) + // -11 (normalize the diyfp) + // = 960 + // + // This binary exponent range [-1137,960] results in a decimal exponent + // range [-307,324]. One does not need to store a cached power for each + // k in this range. For each such k it suffices to find a cached power + // such that the exponent of the product lies in [alpha,gamma]. + // This implies that the difference of the decimal exponents of adjacent + // table entries must be less than or equal to + // + // floor( (gamma - alpha) * log_10(2) ) = 8. + // + // (A smaller distance gamma-alpha would require a larger table.) + + // NB: + // Actually this function returns c, such that -60 <= e_c + e + 64 <= -34. + + constexpr int kCachedPowersMinDecExp = -300; + constexpr int kCachedPowersDecStep = 8; + + static constexpr std::array kCachedPowers = {{ + {0xAB70FE17C79AC6CA, -1060, -300}, {0xFF77B1FCBEBCDC4F, -1034, -292}, + {0xBE5691EF416BD60C, -1007, -284}, {0x8DD01FAD907FFC3C, -980, -276}, + {0xD3515C2831559A83, -954, -268}, {0x9D71AC8FADA6C9B5, -927, -260}, + {0xEA9C227723EE8BCB, -901, -252}, {0xAECC49914078536D, -874, -244}, + {0x823C12795DB6CE57, -847, -236}, {0xC21094364DFB5637, -821, -228}, + {0x9096EA6F3848984F, -794, -220}, {0xD77485CB25823AC7, -768, -212}, + {0xA086CFCD97BF97F4, -741, -204}, {0xEF340A98172AACE5, -715, -196}, + {0xB23867FB2A35B28E, -688, -188}, {0x84C8D4DFD2C63F3B, -661, -180}, + {0xC5DD44271AD3CDBA, -635, -172}, {0x936B9FCEBB25C996, -608, -164}, + {0xDBAC6C247D62A584, -582, -156}, {0xA3AB66580D5FDAF6, -555, -148}, + {0xF3E2F893DEC3F126, -529, -140}, {0xB5B5ADA8AAFF80B8, -502, -132}, + {0x87625F056C7C4A8B, -475, -124}, {0xC9BCFF6034C13053, -449, -116}, + {0x964E858C91BA2655, -422, -108}, {0xDFF9772470297EBD, -396, -100}, + {0xA6DFBD9FB8E5B88F, -369, -92}, {0xF8A95FCF88747D94, -343, -84}, + {0xB94470938FA89BCF, -316, -76}, {0x8A08F0F8BF0F156B, -289, -68}, + {0xCDB02555653131B6, -263, -60}, {0x993FE2C6D07B7FAC, -236, -52}, + {0xE45C10C42A2B3B06, -210, -44}, {0xAA242499697392D3, -183, -36}, + {0xFD87B5F28300CA0E, -157, -28}, {0xBCE5086492111AEB, -130, -20}, + {0x8CBCCC096F5088CC, -103, -12}, {0xD1B71758E219652C, -77, -4}, + {0x9C40000000000000, -50, 4}, {0xE8D4A51000000000, -24, 12}, + {0xAD78EBC5AC620000, 3, 20}, {0x813F3978F8940984, 30, 28}, + {0xC097CE7BC90715B3, 56, 36}, {0x8F7E32CE7BEA5C70, 83, 44}, + {0xD5D238A4ABE98068, 109, 52}, {0x9F4F2726179A2245, 136, 60}, + {0xED63A231D4C4FB27, 162, 68}, {0xB0DE65388CC8ADA8, 189, 76}, + {0x83C7088E1AAB65DB, 216, 84}, {0xC45D1DF942711D9A, 242, 92}, + {0x924D692CA61BE758, 269, 100}, {0xDA01EE641A708DEA, 295, 108}, + {0xA26DA3999AEF774A, 322, 116}, {0xF209787BB47D6B85, 348, 124}, + {0xB454E4A179DD1877, 375, 132}, {0x865B86925B9BC5C2, 402, 140}, + {0xC83553C5C8965D3D, 428, 148}, {0x952AB45CFA97A0B3, 455, 156}, + {0xDE469FBD99A05FE3, 481, 164}, {0xA59BC234DB398C25, 508, 172}, + {0xF6C69A72A3989F5C, 534, 180}, {0xB7DCBF5354E9BECE, 561, 188}, + {0x88FCF317F22241E2, 588, 196}, {0xCC20CE9BD35C78A5, 614, 204}, + {0x98165AF37B2153DF, 641, 212}, {0xE2A0B5DC971F303A, 667, 220}, + {0xA8D9D1535CE3B396, 694, 228}, {0xFB9B7CD9A4A7443C, 720, 236}, + {0xBB764C4CA7A44410, 747, 244}, {0x8BAB8EEFB6409C1A, 774, 252}, + {0xD01FEF10A657842C, 800, 260}, {0x9B10A4E5E9913129, 827, 268}, + {0xE7109BFBA19C0C9D, 853, 276}, {0xAC2820D9623BF429, 880, 284}, + {0x80444B5E7AA7CF85, 907, 292}, {0xBF21E44003ACDD2D, 933, 300}, + {0x8E679C2F5E44FF8F, 960, 308}, {0xD433179D9C8CB841, 986, 316}, + {0x9E19DB92B4E31BA9, 1013, 324}, + }}; + + // This computation gives exactly the same results for k as + // k = ceil((kAlpha - e - 1) * 0.30102999566398114) + // for |e| <= 1500, but doesn't require floating-point operations. + // NB: log_10(2) ~= 78913 / 2^18 + const int f = kAlpha - e - 1; + const int k = (f * 78913) / (1 << 18) + static_cast(f > 0); + + const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / + kCachedPowersDecStep; + + const cached_power cached = kCachedPowers[static_cast(index)]; + + return cached; +} + +/*! +For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k. +For n == 0, returns 1 and sets pow10 := 1. +*/ +inline int find_largest_pow10(const std::uint32_t n, std::uint32_t &pow10) { + // LCOV_EXCL_START + if (n >= 1000000000) { + pow10 = 1000000000; + return 10; + } + // LCOV_EXCL_STOP + else if (n >= 100000000) { + pow10 = 100000000; + return 9; + } else if (n >= 10000000) { + pow10 = 10000000; + return 8; + } else if (n >= 1000000) { + pow10 = 1000000; + return 7; + } else if (n >= 100000) { + pow10 = 100000; + return 6; + } else if (n >= 10000) { + pow10 = 10000; + return 5; + } else if (n >= 1000) { + pow10 = 1000; + return 4; + } else if (n >= 100) { + pow10 = 100; + return 3; + } else if (n >= 10) { + pow10 = 10; + return 2; + } else { + pow10 = 1; + return 1; + } +} + +inline void grisu2_round(char *buf, int len, std::uint64_t dist, + std::uint64_t delta, std::uint64_t rest, + std::uint64_t ten_k) { + + // <--------------------------- delta ----> + // <---- dist ---------> + // --------------[------------------+-------------------]-------------- + // M- w M+ + // + // ten_k + // <------> + // <---- rest ----> + // --------------[------------------+----+--------------]-------------- + // w V + // = buf * 10^k + // + // ten_k represents a unit-in-the-last-place in the decimal representation + // stored in buf. + // Decrement buf by ten_k while this takes buf closer to w. + + // The tests are written in this order to avoid overflow in unsigned + // integer arithmetic. + + while (rest < dist && delta - rest >= ten_k && + (rest + ten_k < dist || dist - rest > rest + ten_k - dist)) { + buf[len - 1]--; + rest += ten_k; + } +} + +/*! +Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. +M- and M+ must be normalized and share the same exponent -60 <= e <= -32. +*/ +inline void grisu2_digit_gen(char *buffer, int &length, int &decimal_exponent, + diyfp M_minus, diyfp w, diyfp M_plus) { + static_assert(kAlpha >= -60, "internal error"); + static_assert(kGamma <= -32, "internal error"); + + // Generates the digits (and the exponent) of a decimal floating-point + // number V = buffer * 10^decimal_exponent in the range [M-, M+]. The diyfp's + // w, M- and M+ share the same exponent e, which satisfies alpha <= e <= + // gamma. + // + // <--------------------------- delta ----> + // <---- dist ---------> + // --------------[------------------+-------------------]-------------- + // M- w M+ + // + // Grisu2 generates the digits of M+ from left to right and stops as soon as + // V is in [M-,M+]. + + std::uint64_t delta = + diyfp::sub(M_plus, M_minus) + .f; // (significand of (M+ - M-), implicit exponent is e) + std::uint64_t dist = + diyfp::sub(M_plus, w) + .f; // (significand of (M+ - w ), implicit exponent is e) + + // Split M+ = f * 2^e into two parts p1 and p2 (note: e < 0): + // + // M+ = f * 2^e + // = ((f div 2^-e) * 2^-e + (f mod 2^-e)) * 2^e + // = ((p1 ) * 2^-e + (p2 )) * 2^e + // = p1 + p2 * 2^e + + const diyfp one(std::uint64_t{1} << -M_plus.e, M_plus.e); + + auto p1 = static_cast( + M_plus.f >> + -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.) + std::uint64_t p2 = M_plus.f & (one.f - 1); // p2 = f mod 2^-e + + // 1) + // + // Generate the digits of the integral part p1 = d[n-1]...d[1]d[0] + + std::uint32_t pow10; + const int k = find_largest_pow10(p1, pow10); + + // 10^(k-1) <= p1 < 10^k, pow10 = 10^(k-1) + // + // p1 = (p1 div 10^(k-1)) * 10^(k-1) + (p1 mod 10^(k-1)) + // = (d[k-1] ) * 10^(k-1) + (p1 mod 10^(k-1)) + // + // M+ = p1 + p2 * 2^e + // = d[k-1] * 10^(k-1) + (p1 mod 10^(k-1)) + p2 * 2^e + // = d[k-1] * 10^(k-1) + ((p1 mod 10^(k-1)) * 2^-e + p2) * 2^e + // = d[k-1] * 10^(k-1) + ( rest) * 2^e + // + // Now generate the digits d[n] of p1 from left to right (n = k-1,...,0) + // + // p1 = d[k-1]...d[n] * 10^n + d[n-1]...d[0] + // + // but stop as soon as + // + // rest * 2^e = (d[n-1]...d[0] * 2^-e + p2) * 2^e <= delta * 2^e + + int n = k; + while (n > 0) { + // Invariants: + // M+ = buffer * 10^n + (p1 + p2 * 2^e) (buffer = 0 for n = k) + // pow10 = 10^(n-1) <= p1 < 10^n + // + const std::uint32_t d = p1 / pow10; // d = p1 div 10^(n-1) + const std::uint32_t r = p1 % pow10; // r = p1 mod 10^(n-1) + // + // M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e + // = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e) + // + buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d + // + // M+ = buffer * 10^(n-1) + (r + p2 * 2^e) + // + p1 = r; + n--; + // + // M+ = buffer * 10^n + (p1 + p2 * 2^e) + // pow10 = 10^n + // + + // Now check if enough digits have been generated. + // Compute + // + // p1 + p2 * 2^e = (p1 * 2^-e + p2) * 2^e = rest * 2^e + // + // Note: + // Since rest and delta share the same exponent e, it suffices to + // compare the significands. + const std::uint64_t rest = (std::uint64_t{p1} << -one.e) + p2; + if (rest <= delta) { + // V = buffer * 10^n, with M- <= V <= M+. + + decimal_exponent += n; + + // We may now just stop. But instead look if the buffer could be + // decremented to bring V closer to w. + // + // pow10 = 10^n is now 1 ulp in the decimal representation V. + // The rounding procedure works with diyfp's with an implicit + // exponent of e. + // + // 10^n = (10^n * 2^-e) * 2^e = ulp * 2^e + // + const std::uint64_t ten_n = std::uint64_t{pow10} << -one.e; + grisu2_round(buffer, length, dist, delta, rest, ten_n); + + return; + } + + pow10 /= 10; + // + // pow10 = 10^(n-1) <= p1 < 10^n + // Invariants restored. + } + + // 2) + // + // The digits of the integral part have been generated: + // + // M+ = d[k-1]...d[1]d[0] + p2 * 2^e + // = buffer + p2 * 2^e + // + // Now generate the digits of the fractional part p2 * 2^e. + // + // Note: + // No decimal point is generated: the exponent is adjusted instead. + // + // p2 actually represents the fraction + // + // p2 * 2^e + // = p2 / 2^-e + // = d[-1] / 10^1 + d[-2] / 10^2 + ... + // + // Now generate the digits d[-m] of p1 from left to right (m = 1,2,...) + // + // p2 * 2^e = d[-1]d[-2]...d[-m] * 10^-m + // + 10^-m * (d[-m-1] / 10^1 + d[-m-2] / 10^2 + ...) + // + // using + // + // 10^m * p2 = ((10^m * p2) div 2^-e) * 2^-e + ((10^m * p2) mod 2^-e) + // = ( d) * 2^-e + ( r) + // + // or + // 10^m * p2 * 2^e = d + r * 2^e + // + // i.e. + // + // M+ = buffer + p2 * 2^e + // = buffer + 10^-m * (d + r * 2^e) + // = (buffer * 10^m + d) * 10^-m + 10^-m * r * 2^e + // + // and stop as soon as 10^-m * r * 2^e <= delta * 2^e + + int m = 0; + for (;;) { + // Invariant: + // M+ = buffer * 10^-m + 10^-m * (d[-m-1] / 10 + d[-m-2] / 10^2 + ...) + // * 2^e + // = buffer * 10^-m + 10^-m * (p2 ) + // * 2^e = buffer * 10^-m + 10^-m * (1/10 * (10 * p2) ) * 2^e = + // buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + + // (10*p2 mod 2^-e)) * 2^e + // + p2 *= 10; + const std::uint64_t d = p2 >> -one.e; // d = (10 * p2) div 2^-e + const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e + // + // M+ = buffer * 10^-m + 10^-m * (1/10 * (d * 2^-e + r) * 2^e + // = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e)) + // = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e + // + buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d + // + // M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e + // + p2 = r; + m++; + // + // M+ = buffer * 10^-m + 10^-m * p2 * 2^e + // Invariant restored. + + // Check if enough digits have been generated. + // + // 10^-m * p2 * 2^e <= delta * 2^e + // p2 * 2^e <= 10^m * delta * 2^e + // p2 <= 10^m * delta + delta *= 10; + dist *= 10; + if (p2 <= delta) { + break; + } + } + + // V = buffer * 10^-m, with M- <= V <= M+. + + decimal_exponent -= m; + + // 1 ulp in the decimal representation is now 10^-m. + // Since delta and dist are now scaled by 10^m, we need to do the + // same with ulp in order to keep the units in sync. + // + // 10^m * 10^-m = 1 = 2^-e * 2^e = ten_m * 2^e + // + const std::uint64_t ten_m = one.f; + grisu2_round(buffer, length, dist, delta, p2, ten_m); + + // By construction this algorithm generates the shortest possible decimal + // number (Loitsch, Theorem 6.2) which rounds back to w. + // For an input number of precision p, at least + // + // N = 1 + ceil(p * log_10(2)) + // + // decimal digits are sufficient to identify all binary floating-point + // numbers (Matula, "In-and-Out conversions"). + // This implies that the algorithm does not produce more than N decimal + // digits. + // + // N = 17 for p = 53 (IEEE double precision) + // N = 9 for p = 24 (IEEE single precision) +} + +/*! +v = buf * 10^decimal_exponent +len is the length of the buffer (number of decimal digits) +The buffer must be large enough, i.e. >= max_digits10. +*/ +inline void grisu2(char *buf, int &len, int &decimal_exponent, diyfp m_minus, + diyfp v, diyfp m_plus) { + + // --------(-----------------------+-----------------------)-------- (A) + // m- v m+ + // + // --------------------(-----------+-----------------------)-------- (B) + // m- v m+ + // + // First scale v (and m- and m+) such that the exponent is in the range + // [alpha, gamma]. + + const cached_power cached = get_cached_power_for_binary_exponent(m_plus.e); + + const diyfp c_minus_k(cached.f, cached.e); // = c ~= 10^-k + + // The exponent of the products is = v.e + c_minus_k.e + q and is in the range + // [alpha,gamma] + const diyfp w = diyfp::mul(v, c_minus_k); + const diyfp w_minus = diyfp::mul(m_minus, c_minus_k); + const diyfp w_plus = diyfp::mul(m_plus, c_minus_k); + + // ----(---+---)---------------(---+---)---------------(---+---)---- + // w- w w+ + // = c*m- = c*v = c*m+ + // + // diyfp::mul rounds its result and c_minus_k is approximated too. w, w- and + // w+ are now off by a small amount. + // In fact: + // + // w - v * 10^k < 1 ulp + // + // To account for this inaccuracy, add resp. subtract 1 ulp. + // + // --------+---[---------------(---+---)---------------]---+-------- + // w- M- w M+ w+ + // + // Now any number in [M-, M+] (bounds included) will round to w when input, + // regardless of how the input rounding algorithm breaks ties. + // + // And digit_gen generates the shortest possible such number in [M-, M+]. + // Note that this does not mean that Grisu2 always generates the shortest + // possible number in the interval (m-, m+). + const diyfp M_minus(w_minus.f + 1, w_minus.e); + const diyfp M_plus(w_plus.f - 1, w_plus.e); + + decimal_exponent = -cached.k; // = -(-k) = k + + grisu2_digit_gen(buf, len, decimal_exponent, M_minus, w, M_plus); +} + +/*! +v = buf * 10^decimal_exponent +len is the length of the buffer (number of decimal digits) +The buffer must be large enough, i.e. >= max_digits10. +*/ +template +void grisu2(char *buf, int &len, int &decimal_exponent, FloatType value) { + static_assert(diyfp::kPrecision >= std::numeric_limits::digits + 3, + "internal error: not enough precision"); + + // If the neighbors (and boundaries) of 'value' are always computed for + // double-precision numbers, all float's can be recovered using strtod (and + // strtof). However, the resulting decimal representations are not exactly + // "short". + // + // The documentation for 'std::to_chars' + // (https://en.cppreference.com/w/cpp/utility/to_chars) says "value is + // converted to a string as if by std::sprintf in the default ("C") locale" + // and since sprintf promotes float's to double's, I think this is exactly + // what 'std::to_chars' does. On the other hand, the documentation for + // 'std::to_chars' requires that "parsing the representation using the + // corresponding std::from_chars function recovers value exactly". That + // indicates that single precision floating-point numbers should be recovered + // using 'std::strtof'. + // + // NB: If the neighbors are computed for single-precision numbers, there is a + // single float + // (7.0385307e-26f) which can't be recovered using strtod. The resulting + // double precision value is off by 1 ulp. +#if 0 + const boundaries w = compute_boundaries(static_cast(value)); +#else + const boundaries w = compute_boundaries(value); +#endif + + grisu2(buf, len, decimal_exponent, w.minus, w.w, w.plus); +} + +/*! +@brief appends a decimal representation of e to buf +@return a pointer to the element following the exponent. +@pre -1000 < e < 1000 +*/ +inline char *append_exponent(char *buf, int e) { + + if (e < 0) { + e = -e; + *buf++ = '-'; + } else { + *buf++ = '+'; + } + + auto k = static_cast(e); + if (k < 10) { + // Always print at least two digits in the exponent. + // This is for compatibility with printf("%g"). + *buf++ = '0'; + *buf++ = static_cast('0' + k); + } else if (k < 100) { + *buf++ = static_cast('0' + k / 10); + k %= 10; + *buf++ = static_cast('0' + k); + } else { + *buf++ = static_cast('0' + k / 100); + k %= 100; + *buf++ = static_cast('0' + k / 10); + k %= 10; + *buf++ = static_cast('0' + k); + } + + return buf; +} + +/*! +@brief prettify v = buf * 10^decimal_exponent +If v is in the range [10^min_exp, 10^max_exp) it will be printed in fixed-point +notation. Otherwise it will be printed in exponential notation. +@pre min_exp < 0 +@pre max_exp > 0 +*/ +inline char *format_buffer(char *buf, int len, int decimal_exponent, + int min_exp, int max_exp) { + + const int k = len; + const int n = len + decimal_exponent; + + // v = buf * 10^(n-k) + // k is the length of the buffer (number of decimal digits) + // n is the position of the decimal point relative to the start of the buffer. + + if (k <= n && n <= max_exp) { + // digits[000] + // len <= max_exp + 2 + + std::memset(buf + k, '0', static_cast(n) - static_cast(k)); + // Make it look like a floating-point number (#362, #378) + buf[n + 0] = '.'; + buf[n + 1] = '0'; + return buf + (static_cast(n)) + 2; + } + + if (0 < n && n <= max_exp) { + // dig.its + // len <= max_digits10 + 1 + std::memmove(buf + (static_cast(n) + 1), buf + n, + static_cast(k) - static_cast(n)); + buf[n] = '.'; + return buf + (static_cast(k) + 1U); + } + + if (min_exp < n && n <= 0) { + // 0.[000]digits + // len <= 2 + (-min_exp - 1) + max_digits10 + + std::memmove(buf + (2 + static_cast(-n)), buf, + static_cast(k)); + buf[0] = '0'; + buf[1] = '.'; + std::memset(buf + 2, '0', static_cast(-n)); + return buf + (2U + static_cast(-n) + static_cast(k)); + } + + if (k == 1) { + // dE+123 + // len <= 1 + 5 + + buf += 1; + } else { + // d.igitsE+123 + // len <= max_digits10 + 1 + 5 + + std::memmove(buf + 2, buf + 1, static_cast(k) - 1); + buf[1] = '.'; + buf += 1 + static_cast(k); + } + + *buf++ = 'e'; + return append_exponent(buf, n - 1); +} + +} // namespace dtoa_impl + +/*! +The format of the resulting decimal representation is similar to printf's %g +format. Returns an iterator pointing past-the-end of the decimal representation. +@note The input number must be finite, i.e. NaN's and Inf's are not supported. +@note The buffer must be large enough. +@note The result is NOT null-terminated. +*/ +char *to_chars(char *first, const char *last, double value) { + static_cast(last); // maybe unused - fix warning + bool negative = std::signbit(value); + if (negative) { + value = -value; + *first++ = '-'; + } + + if (value == 0) // +-0 + { + *first++ = '0'; + // Make it look like a floating-point number (#362, #378) + *first++ = '.'; + *first++ = '0'; + return first; + } + // Compute v = buffer * 10^decimal_exponent. + // The decimal digits are stored in the buffer, which needs to be interpreted + // as an unsigned decimal integer. + // len is the length of the buffer, i.e. the number of decimal digits. + int len = 0; + int decimal_exponent = 0; + dtoa_impl::grisu2(first, len, decimal_exponent, value); + // Format the buffer like printf("%.*g", prec, value) + constexpr int kMinExp = -4; + constexpr int kMaxExp = std::numeric_limits::digits10; + + return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, + kMaxExp); +} +} // namespace internal +} // namespace simdjson +/* end file src/to_chars.cpp */ +/* begin file src/from_chars.cpp */ +#include +namespace simdjson { +namespace internal { + +/** + * The code in the internal::from_chars function is meant to handle the floating-point number parsing + * when we have more than 19 digits in the decimal mantissa. This should only be seen + * in adversarial scenarios: we do not expect production systems to even produce + * such floating-point numbers. + * + * The parser is based on work by Nigel Tao (at https://github.com/google/wuffs/) + * who credits Ken Thompson for the design (via a reference to the Go source + * code). See + * https://github.com/google/wuffs/blob/aa46859ea40c72516deffa1b146121952d6dfd3b/internal/cgen/base/floatconv-submodule-data.c + * https://github.com/google/wuffs/blob/46cd8105f47ca07ae2ba8e6a7818ef9c0df6c152/internal/cgen/base/floatconv-submodule-code.c + * It is probably not very fast but it is a fallback that should almost never be + * called in real life. Google Wuffs is published under APL 2.0. + **/ + +namespace { +constexpr uint32_t max_digits = 768; +constexpr int32_t decimal_point_range = 2047; +} // namespace + +struct adjusted_mantissa { + uint64_t mantissa; + int power2; + adjusted_mantissa() : mantissa(0), power2(0) {} +}; + +struct decimal { + uint32_t num_digits; + int32_t decimal_point; + bool negative; + bool truncated; + uint8_t digits[max_digits]; +}; + +template struct binary_format { + static constexpr int mantissa_explicit_bits(); + static constexpr int minimum_exponent(); + static constexpr int infinite_power(); + static constexpr int sign_index(); +}; + +template <> constexpr int binary_format::mantissa_explicit_bits() { + return 52; +} + +template <> constexpr int binary_format::minimum_exponent() { + return -1023; +} +template <> constexpr int binary_format::infinite_power() { + return 0x7FF; +} + +template <> constexpr int binary_format::sign_index() { return 63; } + +bool is_integer(char c) noexcept { return (c >= '0' && c <= '9'); } + +// This should always succeed since it follows a call to parse_number. +decimal parse_decimal(const char *&p) noexcept { + decimal answer; + answer.num_digits = 0; + answer.decimal_point = 0; + answer.truncated = false; + answer.negative = (*p == '-'); + if ((*p == '-') || (*p == '+')) { + ++p; + } + + while (*p == '0') { + ++p; + } + while (is_integer(*p)) { + if (answer.num_digits < max_digits) { + answer.digits[answer.num_digits] = uint8_t(*p - '0'); + } + answer.num_digits++; + ++p; + } + if (*p == '.') { + ++p; + const char *first_after_period = p; + // if we have not yet encountered a zero, we have to skip it as well + if (answer.num_digits == 0) { + // skip zeros + while (*p == '0') { + ++p; + } + } + while (is_integer(*p)) { + if (answer.num_digits < max_digits) { + answer.digits[answer.num_digits] = uint8_t(*p - '0'); + } + answer.num_digits++; + ++p; + } + answer.decimal_point = int32_t(first_after_period - p); + } + if(answer.num_digits > 0) { + const char *preverse = p - 1; + int32_t trailing_zeros = 0; + while ((*preverse == '0') || (*preverse == '.')) { + if(*preverse == '0') { trailing_zeros++; }; + --preverse; + } + answer.decimal_point += int32_t(answer.num_digits); + answer.num_digits -= uint32_t(trailing_zeros); + } + if(answer.num_digits > max_digits ) { + answer.num_digits = max_digits; + answer.truncated = true; + } + if (('e' == *p) || ('E' == *p)) { + ++p; + bool neg_exp = false; + if ('-' == *p) { + neg_exp = true; + ++p; + } else if ('+' == *p) { + ++p; + } + int32_t exp_number = 0; // exponential part + while (is_integer(*p)) { + uint8_t digit = uint8_t(*p - '0'); + if (exp_number < 0x10000) { + exp_number = 10 * exp_number + digit; + } + ++p; + } + answer.decimal_point += (neg_exp ? -exp_number : exp_number); + } + return answer; +} + +// This should always succeed since it follows a call to parse_number. +// Will not read at or beyond the "end" pointer. +decimal parse_decimal(const char *&p, const char * end) noexcept { + decimal answer; + answer.num_digits = 0; + answer.decimal_point = 0; + answer.truncated = false; + if(p == end) { return answer; } // should never happen + answer.negative = (*p == '-'); + if ((*p == '-') || (*p == '+')) { + ++p; + } + + while ((p != end) && (*p == '0')) { + ++p; + } + while ((p != end) && is_integer(*p)) { + if (answer.num_digits < max_digits) { + answer.digits[answer.num_digits] = uint8_t(*p - '0'); + } + answer.num_digits++; + ++p; + } + if ((p != end) && (*p == '.')) { + ++p; + if(p == end) { return answer; } // should never happen + const char *first_after_period = p; + // if we have not yet encountered a zero, we have to skip it as well + if (answer.num_digits == 0) { + // skip zeros + while (*p == '0') { + ++p; + } + } + while ((p != end) && is_integer(*p)) { + if (answer.num_digits < max_digits) { + answer.digits[answer.num_digits] = uint8_t(*p - '0'); + } + answer.num_digits++; + ++p; + } + answer.decimal_point = int32_t(first_after_period - p); + } + if(answer.num_digits > 0) { + const char *preverse = p - 1; + int32_t trailing_zeros = 0; + while ((*preverse == '0') || (*preverse == '.')) { + if(*preverse == '0') { trailing_zeros++; }; + --preverse; + } + answer.decimal_point += int32_t(answer.num_digits); + answer.num_digits -= uint32_t(trailing_zeros); + } + if(answer.num_digits > max_digits ) { + answer.num_digits = max_digits; + answer.truncated = true; + } + if ((p != end) && (('e' == *p) || ('E' == *p))) { + ++p; + if(p == end) { return answer; } // should never happen + bool neg_exp = false; + if ('-' == *p) { + neg_exp = true; + ++p; + } else if ('+' == *p) { + ++p; + } + int32_t exp_number = 0; // exponential part + while ((p != end) && is_integer(*p)) { + uint8_t digit = uint8_t(*p - '0'); + if (exp_number < 0x10000) { + exp_number = 10 * exp_number + digit; + } + ++p; + } + answer.decimal_point += (neg_exp ? -exp_number : exp_number); + } + return answer; +} + +namespace { + +// remove all final zeroes +inline void trim(decimal &h) { + while ((h.num_digits > 0) && (h.digits[h.num_digits - 1] == 0)) { + h.num_digits--; + } +} + +uint32_t number_of_digits_decimal_left_shift(decimal &h, uint32_t shift) { + shift &= 63; + const static uint16_t number_of_digits_decimal_left_shift_table[65] = { + 0x0000, 0x0800, 0x0801, 0x0803, 0x1006, 0x1009, 0x100D, 0x1812, 0x1817, + 0x181D, 0x2024, 0x202B, 0x2033, 0x203C, 0x2846, 0x2850, 0x285B, 0x3067, + 0x3073, 0x3080, 0x388E, 0x389C, 0x38AB, 0x38BB, 0x40CC, 0x40DD, 0x40EF, + 0x4902, 0x4915, 0x4929, 0x513E, 0x5153, 0x5169, 0x5180, 0x5998, 0x59B0, + 0x59C9, 0x61E3, 0x61FD, 0x6218, 0x6A34, 0x6A50, 0x6A6D, 0x6A8B, 0x72AA, + 0x72C9, 0x72E9, 0x7B0A, 0x7B2B, 0x7B4D, 0x8370, 0x8393, 0x83B7, 0x83DC, + 0x8C02, 0x8C28, 0x8C4F, 0x9477, 0x949F, 0x94C8, 0x9CF2, 0x051C, 0x051C, + 0x051C, 0x051C, + }; + uint32_t x_a = number_of_digits_decimal_left_shift_table[shift]; + uint32_t x_b = number_of_digits_decimal_left_shift_table[shift + 1]; + uint32_t num_new_digits = x_a >> 11; + uint32_t pow5_a = 0x7FF & x_a; + uint32_t pow5_b = 0x7FF & x_b; + const static uint8_t + number_of_digits_decimal_left_shift_table_powers_of_5[0x051C] = { + 5, 2, 5, 1, 2, 5, 6, 2, 5, 3, 1, 2, 5, 1, 5, 6, 2, 5, 7, 8, 1, 2, 5, + 3, 9, 0, 6, 2, 5, 1, 9, 5, 3, 1, 2, 5, 9, 7, 6, 5, 6, 2, 5, 4, 8, 8, + 2, 8, 1, 2, 5, 2, 4, 4, 1, 4, 0, 6, 2, 5, 1, 2, 2, 0, 7, 0, 3, 1, 2, + 5, 6, 1, 0, 3, 5, 1, 5, 6, 2, 5, 3, 0, 5, 1, 7, 5, 7, 8, 1, 2, 5, 1, + 5, 2, 5, 8, 7, 8, 9, 0, 6, 2, 5, 7, 6, 2, 9, 3, 9, 4, 5, 3, 1, 2, 5, + 3, 8, 1, 4, 6, 9, 7, 2, 6, 5, 6, 2, 5, 1, 9, 0, 7, 3, 4, 8, 6, 3, 2, + 8, 1, 2, 5, 9, 5, 3, 6, 7, 4, 3, 1, 6, 4, 0, 6, 2, 5, 4, 7, 6, 8, 3, + 7, 1, 5, 8, 2, 0, 3, 1, 2, 5, 2, 3, 8, 4, 1, 8, 5, 7, 9, 1, 0, 1, 5, + 6, 2, 5, 1, 1, 9, 2, 0, 9, 2, 8, 9, 5, 5, 0, 7, 8, 1, 2, 5, 5, 9, 6, + 0, 4, 6, 4, 4, 7, 7, 5, 3, 9, 0, 6, 2, 5, 2, 9, 8, 0, 2, 3, 2, 2, 3, + 8, 7, 6, 9, 5, 3, 1, 2, 5, 1, 4, 9, 0, 1, 1, 6, 1, 1, 9, 3, 8, 4, 7, + 6, 5, 6, 2, 5, 7, 4, 5, 0, 5, 8, 0, 5, 9, 6, 9, 2, 3, 8, 2, 8, 1, 2, + 5, 3, 7, 2, 5, 2, 9, 0, 2, 9, 8, 4, 6, 1, 9, 1, 4, 0, 6, 2, 5, 1, 8, + 6, 2, 6, 4, 5, 1, 4, 9, 2, 3, 0, 9, 5, 7, 0, 3, 1, 2, 5, 9, 3, 1, 3, + 2, 2, 5, 7, 4, 6, 1, 5, 4, 7, 8, 5, 1, 5, 6, 2, 5, 4, 6, 5, 6, 6, 1, + 2, 8, 7, 3, 0, 7, 7, 3, 9, 2, 5, 7, 8, 1, 2, 5, 2, 3, 2, 8, 3, 0, 6, + 4, 3, 6, 5, 3, 8, 6, 9, 6, 2, 8, 9, 0, 6, 2, 5, 1, 1, 6, 4, 1, 5, 3, + 2, 1, 8, 2, 6, 9, 3, 4, 8, 1, 4, 4, 5, 3, 1, 2, 5, 5, 8, 2, 0, 7, 6, + 6, 0, 9, 1, 3, 4, 6, 7, 4, 0, 7, 2, 2, 6, 5, 6, 2, 5, 2, 9, 1, 0, 3, + 8, 3, 0, 4, 5, 6, 7, 3, 3, 7, 0, 3, 6, 1, 3, 2, 8, 1, 2, 5, 1, 4, 5, + 5, 1, 9, 1, 5, 2, 2, 8, 3, 6, 6, 8, 5, 1, 8, 0, 6, 6, 4, 0, 6, 2, 5, + 7, 2, 7, 5, 9, 5, 7, 6, 1, 4, 1, 8, 3, 4, 2, 5, 9, 0, 3, 3, 2, 0, 3, + 1, 2, 5, 3, 6, 3, 7, 9, 7, 8, 8, 0, 7, 0, 9, 1, 7, 1, 2, 9, 5, 1, 6, + 6, 0, 1, 5, 6, 2, 5, 1, 8, 1, 8, 9, 8, 9, 4, 0, 3, 5, 4, 5, 8, 5, 6, + 4, 7, 5, 8, 3, 0, 0, 7, 8, 1, 2, 5, 9, 0, 9, 4, 9, 4, 7, 0, 1, 7, 7, + 2, 9, 2, 8, 2, 3, 7, 9, 1, 5, 0, 3, 9, 0, 6, 2, 5, 4, 5, 4, 7, 4, 7, + 3, 5, 0, 8, 8, 6, 4, 6, 4, 1, 1, 8, 9, 5, 7, 5, 1, 9, 5, 3, 1, 2, 5, + 2, 2, 7, 3, 7, 3, 6, 7, 5, 4, 4, 3, 2, 3, 2, 0, 5, 9, 4, 7, 8, 7, 5, + 9, 7, 6, 5, 6, 2, 5, 1, 1, 3, 6, 8, 6, 8, 3, 7, 7, 2, 1, 6, 1, 6, 0, + 2, 9, 7, 3, 9, 3, 7, 9, 8, 8, 2, 8, 1, 2, 5, 5, 6, 8, 4, 3, 4, 1, 8, + 8, 6, 0, 8, 0, 8, 0, 1, 4, 8, 6, 9, 6, 8, 9, 9, 4, 1, 4, 0, 6, 2, 5, + 2, 8, 4, 2, 1, 7, 0, 9, 4, 3, 0, 4, 0, 4, 0, 0, 7, 4, 3, 4, 8, 4, 4, + 9, 7, 0, 7, 0, 3, 1, 2, 5, 1, 4, 2, 1, 0, 8, 5, 4, 7, 1, 5, 2, 0, 2, + 0, 0, 3, 7, 1, 7, 4, 2, 2, 4, 8, 5, 3, 5, 1, 5, 6, 2, 5, 7, 1, 0, 5, + 4, 2, 7, 3, 5, 7, 6, 0, 1, 0, 0, 1, 8, 5, 8, 7, 1, 1, 2, 4, 2, 6, 7, + 5, 7, 8, 1, 2, 5, 3, 5, 5, 2, 7, 1, 3, 6, 7, 8, 8, 0, 0, 5, 0, 0, 9, + 2, 9, 3, 5, 5, 6, 2, 1, 3, 3, 7, 8, 9, 0, 6, 2, 5, 1, 7, 7, 6, 3, 5, + 6, 8, 3, 9, 4, 0, 0, 2, 5, 0, 4, 6, 4, 6, 7, 7, 8, 1, 0, 6, 6, 8, 9, + 4, 5, 3, 1, 2, 5, 8, 8, 8, 1, 7, 8, 4, 1, 9, 7, 0, 0, 1, 2, 5, 2, 3, + 2, 3, 3, 8, 9, 0, 5, 3, 3, 4, 4, 7, 2, 6, 5, 6, 2, 5, 4, 4, 4, 0, 8, + 9, 2, 0, 9, 8, 5, 0, 0, 6, 2, 6, 1, 6, 1, 6, 9, 4, 5, 2, 6, 6, 7, 2, + 3, 6, 3, 2, 8, 1, 2, 5, 2, 2, 2, 0, 4, 4, 6, 0, 4, 9, 2, 5, 0, 3, 1, + 3, 0, 8, 0, 8, 4, 7, 2, 6, 3, 3, 3, 6, 1, 8, 1, 6, 4, 0, 6, 2, 5, 1, + 1, 1, 0, 2, 2, 3, 0, 2, 4, 6, 2, 5, 1, 5, 6, 5, 4, 0, 4, 2, 3, 6, 3, + 1, 6, 6, 8, 0, 9, 0, 8, 2, 0, 3, 1, 2, 5, 5, 5, 5, 1, 1, 1, 5, 1, 2, + 3, 1, 2, 5, 7, 8, 2, 7, 0, 2, 1, 1, 8, 1, 5, 8, 3, 4, 0, 4, 5, 4, 1, + 0, 1, 5, 6, 2, 5, 2, 7, 7, 5, 5, 5, 7, 5, 6, 1, 5, 6, 2, 8, 9, 1, 3, + 5, 1, 0, 5, 9, 0, 7, 9, 1, 7, 0, 2, 2, 7, 0, 5, 0, 7, 8, 1, 2, 5, 1, + 3, 8, 7, 7, 7, 8, 7, 8, 0, 7, 8, 1, 4, 4, 5, 6, 7, 5, 5, 2, 9, 5, 3, + 9, 5, 8, 5, 1, 1, 3, 5, 2, 5, 3, 9, 0, 6, 2, 5, 6, 9, 3, 8, 8, 9, 3, + 9, 0, 3, 9, 0, 7, 2, 2, 8, 3, 7, 7, 6, 4, 7, 6, 9, 7, 9, 2, 5, 5, 6, + 7, 6, 2, 6, 9, 5, 3, 1, 2, 5, 3, 4, 6, 9, 4, 4, 6, 9, 5, 1, 9, 5, 3, + 6, 1, 4, 1, 8, 8, 8, 2, 3, 8, 4, 8, 9, 6, 2, 7, 8, 3, 8, 1, 3, 4, 7, + 6, 5, 6, 2, 5, 1, 7, 3, 4, 7, 2, 3, 4, 7, 5, 9, 7, 6, 8, 0, 7, 0, 9, + 4, 4, 1, 1, 9, 2, 4, 4, 8, 1, 3, 9, 1, 9, 0, 6, 7, 3, 8, 2, 8, 1, 2, + 5, 8, 6, 7, 3, 6, 1, 7, 3, 7, 9, 8, 8, 4, 0, 3, 5, 4, 7, 2, 0, 5, 9, + 6, 2, 2, 4, 0, 6, 9, 5, 9, 5, 3, 3, 6, 9, 1, 4, 0, 6, 2, 5, + }; + const uint8_t *pow5 = + &number_of_digits_decimal_left_shift_table_powers_of_5[pow5_a]; + uint32_t i = 0; + uint32_t n = pow5_b - pow5_a; + for (; i < n; i++) { + if (i >= h.num_digits) { + return num_new_digits - 1; + } else if (h.digits[i] == pow5[i]) { + continue; + } else if (h.digits[i] < pow5[i]) { + return num_new_digits - 1; + } else { + return num_new_digits; + } + } + return num_new_digits; +} + +} // end of anonymous namespace + +uint64_t round(decimal &h) { + if ((h.num_digits == 0) || (h.decimal_point < 0)) { + return 0; + } else if (h.decimal_point > 18) { + return UINT64_MAX; + } + // at this point, we know that h.decimal_point >= 0 + uint32_t dp = uint32_t(h.decimal_point); + uint64_t n = 0; + for (uint32_t i = 0; i < dp; i++) { + n = (10 * n) + ((i < h.num_digits) ? h.digits[i] : 0); + } + bool round_up = false; + if (dp < h.num_digits) { + round_up = h.digits[dp] >= 5; // normally, we round up + // but we may need to round to even! + if ((h.digits[dp] == 5) && (dp + 1 == h.num_digits)) { + round_up = h.truncated || ((dp > 0) && (1 & h.digits[dp - 1])); + } + } + if (round_up) { + n++; + } + return n; +} + +// computes h * 2^-shift +void decimal_left_shift(decimal &h, uint32_t shift) { + if (h.num_digits == 0) { + return; + } + uint32_t num_new_digits = number_of_digits_decimal_left_shift(h, shift); + int32_t read_index = int32_t(h.num_digits - 1); + uint32_t write_index = h.num_digits - 1 + num_new_digits; + uint64_t n = 0; + + while (read_index >= 0) { + n += uint64_t(h.digits[read_index]) << shift; + uint64_t quotient = n / 10; + uint64_t remainder = n - (10 * quotient); + if (write_index < max_digits) { + h.digits[write_index] = uint8_t(remainder); + } else if (remainder > 0) { + h.truncated = true; + } + n = quotient; + write_index--; + read_index--; + } + while (n > 0) { + uint64_t quotient = n / 10; + uint64_t remainder = n - (10 * quotient); + if (write_index < max_digits) { + h.digits[write_index] = uint8_t(remainder); + } else if (remainder > 0) { + h.truncated = true; + } + n = quotient; + write_index--; + } + h.num_digits += num_new_digits; + if (h.num_digits > max_digits) { + h.num_digits = max_digits; + } + h.decimal_point += int32_t(num_new_digits); + trim(h); +} + +// computes h * 2^shift +void decimal_right_shift(decimal &h, uint32_t shift) { + uint32_t read_index = 0; + uint32_t write_index = 0; + + uint64_t n = 0; + + while ((n >> shift) == 0) { + if (read_index < h.num_digits) { + n = (10 * n) + h.digits[read_index++]; + } else if (n == 0) { + return; + } else { + while ((n >> shift) == 0) { + n = 10 * n; + read_index++; + } + break; + } + } + h.decimal_point -= int32_t(read_index - 1); + if (h.decimal_point < -decimal_point_range) { // it is zero + h.num_digits = 0; + h.decimal_point = 0; + h.negative = false; + h.truncated = false; + return; + } + uint64_t mask = (uint64_t(1) << shift) - 1; + while (read_index < h.num_digits) { + uint8_t new_digit = uint8_t(n >> shift); + n = (10 * (n & mask)) + h.digits[read_index++]; + h.digits[write_index++] = new_digit; + } + while (n > 0) { + uint8_t new_digit = uint8_t(n >> shift); + n = 10 * (n & mask); + if (write_index < max_digits) { + h.digits[write_index++] = new_digit; + } else if (new_digit > 0) { + h.truncated = true; + } + } + h.num_digits = write_index; + trim(h); +} + +template adjusted_mantissa compute_float(decimal &d) { + adjusted_mantissa answer; + if (d.num_digits == 0) { + // should be zero + answer.power2 = 0; + answer.mantissa = 0; + return answer; + } + // At this point, going further, we can assume that d.num_digits > 0. + // We want to guard against excessive decimal point values because + // they can result in long running times. Indeed, we do + // shifts by at most 60 bits. We have that log(10**400)/log(2**60) ~= 22 + // which is fine, but log(10**299995)/log(2**60) ~= 16609 which is not + // fine (runs for a long time). + // + if(d.decimal_point < -324) { + // We have something smaller than 1e-324 which is always zero + // in binary64 and binary32. + // It should be zero. + answer.power2 = 0; + answer.mantissa = 0; + return answer; + } else if(d.decimal_point >= 310) { + // We have something at least as large as 0.1e310 which is + // always infinite. + answer.power2 = binary::infinite_power(); + answer.mantissa = 0; + return answer; + } + + static const uint32_t max_shift = 60; + static const uint32_t num_powers = 19; + static const uint8_t powers[19] = { + 0, 3, 6, 9, 13, 16, 19, 23, 26, 29, // + 33, 36, 39, 43, 46, 49, 53, 56, 59, // + }; + int32_t exp2 = 0; + while (d.decimal_point > 0) { + uint32_t n = uint32_t(d.decimal_point); + uint32_t shift = (n < num_powers) ? powers[n] : max_shift; + decimal_right_shift(d, shift); + if (d.decimal_point < -decimal_point_range) { + // should be zero + answer.power2 = 0; + answer.mantissa = 0; + return answer; + } + exp2 += int32_t(shift); + } + // We shift left toward [1/2 ... 1]. + while (d.decimal_point <= 0) { + uint32_t shift; + if (d.decimal_point == 0) { + if (d.digits[0] >= 5) { + break; + } + shift = (d.digits[0] < 2) ? 2 : 1; + } else { + uint32_t n = uint32_t(-d.decimal_point); + shift = (n < num_powers) ? powers[n] : max_shift; + } + decimal_left_shift(d, shift); + if (d.decimal_point > decimal_point_range) { + // we want to get infinity: + answer.power2 = 0xFF; + answer.mantissa = 0; + return answer; + } + exp2 -= int32_t(shift); + } + // We are now in the range [1/2 ... 1] but the binary format uses [1 ... 2]. + exp2--; + constexpr int32_t minimum_exponent = binary::minimum_exponent(); + while ((minimum_exponent + 1) > exp2) { + uint32_t n = uint32_t((minimum_exponent + 1) - exp2); + if (n > max_shift) { + n = max_shift; + } + decimal_right_shift(d, n); + exp2 += int32_t(n); + } + if ((exp2 - minimum_exponent) >= binary::infinite_power()) { + answer.power2 = binary::infinite_power(); + answer.mantissa = 0; + return answer; + } + + const int mantissa_size_in_bits = binary::mantissa_explicit_bits() + 1; + decimal_left_shift(d, mantissa_size_in_bits); + + uint64_t mantissa = round(d); + // It is possible that we have an overflow, in which case we need + // to shift back. + if (mantissa >= (uint64_t(1) << mantissa_size_in_bits)) { + decimal_right_shift(d, 1); + exp2 += 1; + mantissa = round(d); + if ((exp2 - minimum_exponent) >= binary::infinite_power()) { + answer.power2 = binary::infinite_power(); + answer.mantissa = 0; + return answer; + } + } + answer.power2 = exp2 - binary::minimum_exponent(); + if (mantissa < (uint64_t(1) << binary::mantissa_explicit_bits())) { + answer.power2--; + } + answer.mantissa = + mantissa & ((uint64_t(1) << binary::mantissa_explicit_bits()) - 1); + return answer; +} + +template +adjusted_mantissa parse_long_mantissa(const char *first) { + decimal d = parse_decimal(first); + return compute_float(d); +} + +template +adjusted_mantissa parse_long_mantissa(const char *first, const char *end) { + decimal d = parse_decimal(first, end); + return compute_float(d); +} + +double from_chars(const char *first) noexcept { + bool negative = first[0] == '-'; + if (negative) { + first++; + } + adjusted_mantissa am = parse_long_mantissa>(first); + uint64_t word = am.mantissa; + word |= uint64_t(am.power2) + << binary_format::mantissa_explicit_bits(); + word = negative ? word | (uint64_t(1) << binary_format::sign_index()) + : word; + double value; + std::memcpy(&value, &word, sizeof(double)); + return value; +} + + +double from_chars(const char *first, const char *end) noexcept { + bool negative = first[0] == '-'; + if (negative) { + first++; + } + adjusted_mantissa am = parse_long_mantissa>(first, end); + uint64_t word = am.mantissa; + word |= uint64_t(am.power2) + << binary_format::mantissa_explicit_bits(); + word = negative ? word | (uint64_t(1) << binary_format::sign_index()) + : word; + double value; + std::memcpy(&value, &word, sizeof(double)); + return value; +} + +} // internal +} // simdjson +/* end file src/from_chars.cpp */ +/* begin file src/internal/error_tables.cpp */ + +namespace simdjson { +namespace internal { + + SIMDJSON_DLLIMPORTEXPORT const error_code_info error_codes[] { + { SUCCESS, "SUCCESS: No error" }, + { CAPACITY, "CAPACITY: This parser can't support a document that big" }, + { MEMALLOC, "MEMALLOC: Error allocating memory, we're most likely out of memory" }, + { TAPE_ERROR, "TAPE_ERROR: The JSON document has an improper structure: missing or superfluous commas, braces, missing keys, etc." }, + { DEPTH_ERROR, "DEPTH_ERROR: The JSON document was too deep (too many nested objects and arrays)" }, + { STRING_ERROR, "STRING_ERROR: Problem while parsing a string" }, + { T_ATOM_ERROR, "T_ATOM_ERROR: Problem while parsing an atom starting with the letter 't'" }, + { F_ATOM_ERROR, "F_ATOM_ERROR: Problem while parsing an atom starting with the letter 'f'" }, + { N_ATOM_ERROR, "N_ATOM_ERROR: Problem while parsing an atom starting with the letter 'n'" }, + { NUMBER_ERROR, "NUMBER_ERROR: Problem while parsing a number" }, + { UTF8_ERROR, "UTF8_ERROR: The input is not valid UTF-8" }, + { UNINITIALIZED, "UNINITIALIZED: Uninitialized" }, + { EMPTY, "EMPTY: no JSON found" }, + { UNESCAPED_CHARS, "UNESCAPED_CHARS: Within strings, some characters must be escaped, we found unescaped characters" }, + { UNCLOSED_STRING, "UNCLOSED_STRING: A string is opened, but never closed." }, + { UNSUPPORTED_ARCHITECTURE, "UNSUPPORTED_ARCHITECTURE: simdjson does not have an implementation supported by this CPU architecture. Please report this error to the core team as it should never happen." }, + { INCORRECT_TYPE, "INCORRECT_TYPE: The JSON element does not have the requested type." }, + { NUMBER_OUT_OF_RANGE, "NUMBER_OUT_OF_RANGE: The JSON number is too large or too small to fit within the requested type." }, + { INDEX_OUT_OF_BOUNDS, "INDEX_OUT_OF_BOUNDS: Attempted to access an element of a JSON array that is beyond its length." }, + { NO_SUCH_FIELD, "NO_SUCH_FIELD: The JSON field referenced does not exist in this object." }, + { IO_ERROR, "IO_ERROR: Error reading the file." }, + { INVALID_JSON_POINTER, "INVALID_JSON_POINTER: Invalid JSON pointer syntax." }, + { INVALID_URI_FRAGMENT, "INVALID_URI_FRAGMENT: Invalid URI fragment syntax." }, + { UNEXPECTED_ERROR, "UNEXPECTED_ERROR: Unexpected error, consider reporting this problem as you may have found a bug in simdjson" }, + { PARSER_IN_USE, "PARSER_IN_USE: Cannot parse a new document while a document is still in use." }, + { OUT_OF_ORDER_ITERATION, "OUT_OF_ORDER_ITERATION: Objects and arrays can only be iterated when they are first encountered." }, + { INSUFFICIENT_PADDING, "INSUFFICIENT_PADDING: simdjson requires the input JSON string to have at least SIMDJSON_PADDING extra bytes allocated, beyond the string's length. Consider using the simdjson::padded_string class if needed." }, + { INCOMPLETE_ARRAY_OR_OBJECT, "INCOMPLETE_ARRAY_OR_OBJECT: JSON document ended early in the middle of an object or array." }, + { SCALAR_DOCUMENT_AS_VALUE, "SCALAR_DOCUMENT_AS_VALUE: A JSON document made of a scalar (number, Boolean, null or string) is treated as a value. Use get_bool(), get_double(), etc. on the document instead. "}, + { OUT_OF_BOUNDS, "OUT_OF_BOUNDS: Attempt to access location outside of document."}, + { TRAILING_CONTENT, "TRAILING_CONTENT: Unexpected trailing content in the JSON input."} + }; // error_messages[] + +} // namespace internal +} // namespace simdjson +/* end file src/internal/error_tables.cpp */ +/* begin file src/internal/jsoncharutils_tables.cpp */ + +namespace simdjson { +namespace internal { + +// structural chars here are +// they are { 0x7b } 0x7d : 0x3a [ 0x5b ] 0x5d , 0x2c (and NULL) +// we are also interested in the four whitespace characters +// space 0x20, linefeed 0x0a, horizontal tab 0x09 and carriage return 0x0d + +SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace_negated[256] = { + 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; + +SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + +SIMDJSON_DLLIMPORTEXPORT const uint32_t digit_to_val32[886] = { + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, + 0x6, 0x7, 0x8, 0x9, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa, + 0xb, 0xc, 0xd, 0xe, 0xf, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xa, 0xb, 0xc, 0xd, 0xe, + 0xf, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0x0, 0x10, 0x20, 0x30, 0x40, 0x50, + 0x60, 0x70, 0x80, 0x90, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa0, + 0xb0, 0xc0, 0xd0, 0xe0, 0xf0, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, + 0xf0, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0x0, 0x100, 0x200, 0x300, 0x400, 0x500, + 0x600, 0x700, 0x800, 0x900, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa00, + 0xb00, 0xc00, 0xd00, 0xe00, 0xf00, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xa00, 0xb00, 0xc00, 0xd00, 0xe00, + 0xf00, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0x0, 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, + 0x6000, 0x7000, 0x8000, 0x9000, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa000, + 0xb000, 0xc000, 0xd000, 0xe000, 0xf000, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xa000, 0xb000, 0xc000, 0xd000, 0xe000, + 0xf000, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}; + +} // namespace internal +} // namespace simdjson +/* end file src/internal/jsoncharutils_tables.cpp */ +/* begin file src/internal/numberparsing_tables.cpp */ + +namespace simdjson { +namespace internal { + +// Precomputed powers of ten from 10^0 to 10^22. These +// can be represented exactly using the double type. +SIMDJSON_DLLIMPORTEXPORT const double power_of_ten[] = { + 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, + 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22}; + +/** + * When mapping numbers from decimal to binary, + * we go from w * 10^q to m * 2^p but we have + * 10^q = 5^q * 2^q, so effectively + * we are trying to match + * w * 2^q * 5^q to m * 2^p. Thus the powers of two + * are not a concern since they can be represented + * exactly using the binary notation, only the powers of five + * affect the binary significand. + */ + + +// The truncated powers of five from 5^-342 all the way to 5^308 +// The mantissa is truncated to 128 bits, and +// never rounded up. Uses about 10KB. +SIMDJSON_DLLIMPORTEXPORT const uint64_t power_of_five_128[]= { + 0xeef453d6923bd65a,0x113faa2906a13b3f, + 0x9558b4661b6565f8,0x4ac7ca59a424c507, + 0xbaaee17fa23ebf76,0x5d79bcf00d2df649, + 0xe95a99df8ace6f53,0xf4d82c2c107973dc, + 0x91d8a02bb6c10594,0x79071b9b8a4be869, + 0xb64ec836a47146f9,0x9748e2826cdee284, + 0xe3e27a444d8d98b7,0xfd1b1b2308169b25, + 0x8e6d8c6ab0787f72,0xfe30f0f5e50e20f7, + 0xb208ef855c969f4f,0xbdbd2d335e51a935, + 0xde8b2b66b3bc4723,0xad2c788035e61382, + 0x8b16fb203055ac76,0x4c3bcb5021afcc31, + 0xaddcb9e83c6b1793,0xdf4abe242a1bbf3d, + 0xd953e8624b85dd78,0xd71d6dad34a2af0d, + 0x87d4713d6f33aa6b,0x8672648c40e5ad68, + 0xa9c98d8ccb009506,0x680efdaf511f18c2, + 0xd43bf0effdc0ba48,0x212bd1b2566def2, + 0x84a57695fe98746d,0x14bb630f7604b57, + 0xa5ced43b7e3e9188,0x419ea3bd35385e2d, + 0xcf42894a5dce35ea,0x52064cac828675b9, + 0x818995ce7aa0e1b2,0x7343efebd1940993, + 0xa1ebfb4219491a1f,0x1014ebe6c5f90bf8, + 0xca66fa129f9b60a6,0xd41a26e077774ef6, + 0xfd00b897478238d0,0x8920b098955522b4, + 0x9e20735e8cb16382,0x55b46e5f5d5535b0, + 0xc5a890362fddbc62,0xeb2189f734aa831d, + 0xf712b443bbd52b7b,0xa5e9ec7501d523e4, + 0x9a6bb0aa55653b2d,0x47b233c92125366e, + 0xc1069cd4eabe89f8,0x999ec0bb696e840a, + 0xf148440a256e2c76,0xc00670ea43ca250d, + 0x96cd2a865764dbca,0x380406926a5e5728, + 0xbc807527ed3e12bc,0xc605083704f5ecf2, + 0xeba09271e88d976b,0xf7864a44c633682e, + 0x93445b8731587ea3,0x7ab3ee6afbe0211d, + 0xb8157268fdae9e4c,0x5960ea05bad82964, + 0xe61acf033d1a45df,0x6fb92487298e33bd, + 0x8fd0c16206306bab,0xa5d3b6d479f8e056, + 0xb3c4f1ba87bc8696,0x8f48a4899877186c, + 0xe0b62e2929aba83c,0x331acdabfe94de87, + 0x8c71dcd9ba0b4925,0x9ff0c08b7f1d0b14, + 0xaf8e5410288e1b6f,0x7ecf0ae5ee44dd9, + 0xdb71e91432b1a24a,0xc9e82cd9f69d6150, + 0x892731ac9faf056e,0xbe311c083a225cd2, + 0xab70fe17c79ac6ca,0x6dbd630a48aaf406, + 0xd64d3d9db981787d,0x92cbbccdad5b108, + 0x85f0468293f0eb4e,0x25bbf56008c58ea5, + 0xa76c582338ed2621,0xaf2af2b80af6f24e, + 0xd1476e2c07286faa,0x1af5af660db4aee1, + 0x82cca4db847945ca,0x50d98d9fc890ed4d, + 0xa37fce126597973c,0xe50ff107bab528a0, + 0xcc5fc196fefd7d0c,0x1e53ed49a96272c8, + 0xff77b1fcbebcdc4f,0x25e8e89c13bb0f7a, + 0x9faacf3df73609b1,0x77b191618c54e9ac, + 0xc795830d75038c1d,0xd59df5b9ef6a2417, + 0xf97ae3d0d2446f25,0x4b0573286b44ad1d, + 0x9becce62836ac577,0x4ee367f9430aec32, + 0xc2e801fb244576d5,0x229c41f793cda73f, + 0xf3a20279ed56d48a,0x6b43527578c1110f, + 0x9845418c345644d6,0x830a13896b78aaa9, + 0xbe5691ef416bd60c,0x23cc986bc656d553, + 0xedec366b11c6cb8f,0x2cbfbe86b7ec8aa8, + 0x94b3a202eb1c3f39,0x7bf7d71432f3d6a9, + 0xb9e08a83a5e34f07,0xdaf5ccd93fb0cc53, + 0xe858ad248f5c22c9,0xd1b3400f8f9cff68, + 0x91376c36d99995be,0x23100809b9c21fa1, + 0xb58547448ffffb2d,0xabd40a0c2832a78a, + 0xe2e69915b3fff9f9,0x16c90c8f323f516c, + 0x8dd01fad907ffc3b,0xae3da7d97f6792e3, + 0xb1442798f49ffb4a,0x99cd11cfdf41779c, + 0xdd95317f31c7fa1d,0x40405643d711d583, + 0x8a7d3eef7f1cfc52,0x482835ea666b2572, + 0xad1c8eab5ee43b66,0xda3243650005eecf, + 0xd863b256369d4a40,0x90bed43e40076a82, + 0x873e4f75e2224e68,0x5a7744a6e804a291, + 0xa90de3535aaae202,0x711515d0a205cb36, + 0xd3515c2831559a83,0xd5a5b44ca873e03, + 0x8412d9991ed58091,0xe858790afe9486c2, + 0xa5178fff668ae0b6,0x626e974dbe39a872, + 0xce5d73ff402d98e3,0xfb0a3d212dc8128f, + 0x80fa687f881c7f8e,0x7ce66634bc9d0b99, + 0xa139029f6a239f72,0x1c1fffc1ebc44e80, + 0xc987434744ac874e,0xa327ffb266b56220, + 0xfbe9141915d7a922,0x4bf1ff9f0062baa8, + 0x9d71ac8fada6c9b5,0x6f773fc3603db4a9, + 0xc4ce17b399107c22,0xcb550fb4384d21d3, + 0xf6019da07f549b2b,0x7e2a53a146606a48, + 0x99c102844f94e0fb,0x2eda7444cbfc426d, + 0xc0314325637a1939,0xfa911155fefb5308, + 0xf03d93eebc589f88,0x793555ab7eba27ca, + 0x96267c7535b763b5,0x4bc1558b2f3458de, + 0xbbb01b9283253ca2,0x9eb1aaedfb016f16, + 0xea9c227723ee8bcb,0x465e15a979c1cadc, + 0x92a1958a7675175f,0xbfacd89ec191ec9, + 0xb749faed14125d36,0xcef980ec671f667b, + 0xe51c79a85916f484,0x82b7e12780e7401a, + 0x8f31cc0937ae58d2,0xd1b2ecb8b0908810, + 0xb2fe3f0b8599ef07,0x861fa7e6dcb4aa15, + 0xdfbdcece67006ac9,0x67a791e093e1d49a, + 0x8bd6a141006042bd,0xe0c8bb2c5c6d24e0, + 0xaecc49914078536d,0x58fae9f773886e18, + 0xda7f5bf590966848,0xaf39a475506a899e, + 0x888f99797a5e012d,0x6d8406c952429603, + 0xaab37fd7d8f58178,0xc8e5087ba6d33b83, + 0xd5605fcdcf32e1d6,0xfb1e4a9a90880a64, + 0x855c3be0a17fcd26,0x5cf2eea09a55067f, + 0xa6b34ad8c9dfc06f,0xf42faa48c0ea481e, + 0xd0601d8efc57b08b,0xf13b94daf124da26, + 0x823c12795db6ce57,0x76c53d08d6b70858, + 0xa2cb1717b52481ed,0x54768c4b0c64ca6e, + 0xcb7ddcdda26da268,0xa9942f5dcf7dfd09, + 0xfe5d54150b090b02,0xd3f93b35435d7c4c, + 0x9efa548d26e5a6e1,0xc47bc5014a1a6daf, + 0xc6b8e9b0709f109a,0x359ab6419ca1091b, + 0xf867241c8cc6d4c0,0xc30163d203c94b62, + 0x9b407691d7fc44f8,0x79e0de63425dcf1d, + 0xc21094364dfb5636,0x985915fc12f542e4, + 0xf294b943e17a2bc4,0x3e6f5b7b17b2939d, + 0x979cf3ca6cec5b5a,0xa705992ceecf9c42, + 0xbd8430bd08277231,0x50c6ff782a838353, + 0xece53cec4a314ebd,0xa4f8bf5635246428, + 0x940f4613ae5ed136,0x871b7795e136be99, + 0xb913179899f68584,0x28e2557b59846e3f, + 0xe757dd7ec07426e5,0x331aeada2fe589cf, + 0x9096ea6f3848984f,0x3ff0d2c85def7621, + 0xb4bca50b065abe63,0xfed077a756b53a9, + 0xe1ebce4dc7f16dfb,0xd3e8495912c62894, + 0x8d3360f09cf6e4bd,0x64712dd7abbbd95c, + 0xb080392cc4349dec,0xbd8d794d96aacfb3, + 0xdca04777f541c567,0xecf0d7a0fc5583a0, + 0x89e42caaf9491b60,0xf41686c49db57244, + 0xac5d37d5b79b6239,0x311c2875c522ced5, + 0xd77485cb25823ac7,0x7d633293366b828b, + 0x86a8d39ef77164bc,0xae5dff9c02033197, + 0xa8530886b54dbdeb,0xd9f57f830283fdfc, + 0xd267caa862a12d66,0xd072df63c324fd7b, + 0x8380dea93da4bc60,0x4247cb9e59f71e6d, + 0xa46116538d0deb78,0x52d9be85f074e608, + 0xcd795be870516656,0x67902e276c921f8b, + 0x806bd9714632dff6,0xba1cd8a3db53b6, + 0xa086cfcd97bf97f3,0x80e8a40eccd228a4, + 0xc8a883c0fdaf7df0,0x6122cd128006b2cd, + 0xfad2a4b13d1b5d6c,0x796b805720085f81, + 0x9cc3a6eec6311a63,0xcbe3303674053bb0, + 0xc3f490aa77bd60fc,0xbedbfc4411068a9c, + 0xf4f1b4d515acb93b,0xee92fb5515482d44, + 0x991711052d8bf3c5,0x751bdd152d4d1c4a, + 0xbf5cd54678eef0b6,0xd262d45a78a0635d, + 0xef340a98172aace4,0x86fb897116c87c34, + 0x9580869f0e7aac0e,0xd45d35e6ae3d4da0, + 0xbae0a846d2195712,0x8974836059cca109, + 0xe998d258869facd7,0x2bd1a438703fc94b, + 0x91ff83775423cc06,0x7b6306a34627ddcf, + 0xb67f6455292cbf08,0x1a3bc84c17b1d542, + 0xe41f3d6a7377eeca,0x20caba5f1d9e4a93, + 0x8e938662882af53e,0x547eb47b7282ee9c, + 0xb23867fb2a35b28d,0xe99e619a4f23aa43, + 0xdec681f9f4c31f31,0x6405fa00e2ec94d4, + 0x8b3c113c38f9f37e,0xde83bc408dd3dd04, + 0xae0b158b4738705e,0x9624ab50b148d445, + 0xd98ddaee19068c76,0x3badd624dd9b0957, + 0x87f8a8d4cfa417c9,0xe54ca5d70a80e5d6, + 0xa9f6d30a038d1dbc,0x5e9fcf4ccd211f4c, + 0xd47487cc8470652b,0x7647c3200069671f, + 0x84c8d4dfd2c63f3b,0x29ecd9f40041e073, + 0xa5fb0a17c777cf09,0xf468107100525890, + 0xcf79cc9db955c2cc,0x7182148d4066eeb4, + 0x81ac1fe293d599bf,0xc6f14cd848405530, + 0xa21727db38cb002f,0xb8ada00e5a506a7c, + 0xca9cf1d206fdc03b,0xa6d90811f0e4851c, + 0xfd442e4688bd304a,0x908f4a166d1da663, + 0x9e4a9cec15763e2e,0x9a598e4e043287fe, + 0xc5dd44271ad3cdba,0x40eff1e1853f29fd, + 0xf7549530e188c128,0xd12bee59e68ef47c, + 0x9a94dd3e8cf578b9,0x82bb74f8301958ce, + 0xc13a148e3032d6e7,0xe36a52363c1faf01, + 0xf18899b1bc3f8ca1,0xdc44e6c3cb279ac1, + 0x96f5600f15a7b7e5,0x29ab103a5ef8c0b9, + 0xbcb2b812db11a5de,0x7415d448f6b6f0e7, + 0xebdf661791d60f56,0x111b495b3464ad21, + 0x936b9fcebb25c995,0xcab10dd900beec34, + 0xb84687c269ef3bfb,0x3d5d514f40eea742, + 0xe65829b3046b0afa,0xcb4a5a3112a5112, + 0x8ff71a0fe2c2e6dc,0x47f0e785eaba72ab, + 0xb3f4e093db73a093,0x59ed216765690f56, + 0xe0f218b8d25088b8,0x306869c13ec3532c, + 0x8c974f7383725573,0x1e414218c73a13fb, + 0xafbd2350644eeacf,0xe5d1929ef90898fa, + 0xdbac6c247d62a583,0xdf45f746b74abf39, + 0x894bc396ce5da772,0x6b8bba8c328eb783, + 0xab9eb47c81f5114f,0x66ea92f3f326564, + 0xd686619ba27255a2,0xc80a537b0efefebd, + 0x8613fd0145877585,0xbd06742ce95f5f36, + 0xa798fc4196e952e7,0x2c48113823b73704, + 0xd17f3b51fca3a7a0,0xf75a15862ca504c5, + 0x82ef85133de648c4,0x9a984d73dbe722fb, + 0xa3ab66580d5fdaf5,0xc13e60d0d2e0ebba, + 0xcc963fee10b7d1b3,0x318df905079926a8, + 0xffbbcfe994e5c61f,0xfdf17746497f7052, + 0x9fd561f1fd0f9bd3,0xfeb6ea8bedefa633, + 0xc7caba6e7c5382c8,0xfe64a52ee96b8fc0, + 0xf9bd690a1b68637b,0x3dfdce7aa3c673b0, + 0x9c1661a651213e2d,0x6bea10ca65c084e, + 0xc31bfa0fe5698db8,0x486e494fcff30a62, + 0xf3e2f893dec3f126,0x5a89dba3c3efccfa, + 0x986ddb5c6b3a76b7,0xf89629465a75e01c, + 0xbe89523386091465,0xf6bbb397f1135823, + 0xee2ba6c0678b597f,0x746aa07ded582e2c, + 0x94db483840b717ef,0xa8c2a44eb4571cdc, + 0xba121a4650e4ddeb,0x92f34d62616ce413, + 0xe896a0d7e51e1566,0x77b020baf9c81d17, + 0x915e2486ef32cd60,0xace1474dc1d122e, + 0xb5b5ada8aaff80b8,0xd819992132456ba, + 0xe3231912d5bf60e6,0x10e1fff697ed6c69, + 0x8df5efabc5979c8f,0xca8d3ffa1ef463c1, + 0xb1736b96b6fd83b3,0xbd308ff8a6b17cb2, + 0xddd0467c64bce4a0,0xac7cb3f6d05ddbde, + 0x8aa22c0dbef60ee4,0x6bcdf07a423aa96b, + 0xad4ab7112eb3929d,0x86c16c98d2c953c6, + 0xd89d64d57a607744,0xe871c7bf077ba8b7, + 0x87625f056c7c4a8b,0x11471cd764ad4972, + 0xa93af6c6c79b5d2d,0xd598e40d3dd89bcf, + 0xd389b47879823479,0x4aff1d108d4ec2c3, + 0x843610cb4bf160cb,0xcedf722a585139ba, + 0xa54394fe1eedb8fe,0xc2974eb4ee658828, + 0xce947a3da6a9273e,0x733d226229feea32, + 0x811ccc668829b887,0x806357d5a3f525f, + 0xa163ff802a3426a8,0xca07c2dcb0cf26f7, + 0xc9bcff6034c13052,0xfc89b393dd02f0b5, + 0xfc2c3f3841f17c67,0xbbac2078d443ace2, + 0x9d9ba7832936edc0,0xd54b944b84aa4c0d, + 0xc5029163f384a931,0xa9e795e65d4df11, + 0xf64335bcf065d37d,0x4d4617b5ff4a16d5, + 0x99ea0196163fa42e,0x504bced1bf8e4e45, + 0xc06481fb9bcf8d39,0xe45ec2862f71e1d6, + 0xf07da27a82c37088,0x5d767327bb4e5a4c, + 0x964e858c91ba2655,0x3a6a07f8d510f86f, + 0xbbe226efb628afea,0x890489f70a55368b, + 0xeadab0aba3b2dbe5,0x2b45ac74ccea842e, + 0x92c8ae6b464fc96f,0x3b0b8bc90012929d, + 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0xc1a12d2fc3978937,0x52d6b1641c83ae, + 0xf209787bb47d6b84,0xc0678c5dbd23a49a, + 0x9745eb4d50ce6332,0xf840b7ba963646e0, + 0xbd176620a501fbff,0xb650e5a93bc3d898, + 0xec5d3fa8ce427aff,0xa3e51f138ab4cebe, + 0x93ba47c980e98cdf,0xc66f336c36b10137, + 0xb8a8d9bbe123f017,0xb80b0047445d4184, + 0xe6d3102ad96cec1d,0xa60dc059157491e5, + 0x9043ea1ac7e41392,0x87c89837ad68db2f, + 0xb454e4a179dd1877,0x29babe4598c311fb, + 0xe16a1dc9d8545e94,0xf4296dd6fef3d67a, + 0x8ce2529e2734bb1d,0x1899e4a65f58660c, + 0xb01ae745b101e9e4,0x5ec05dcff72e7f8f, + 0xdc21a1171d42645d,0x76707543f4fa1f73, + 0x899504ae72497eba,0x6a06494a791c53a8, + 0xabfa45da0edbde69,0x487db9d17636892, + 0xd6f8d7509292d603,0x45a9d2845d3c42b6, + 0x865b86925b9bc5c2,0xb8a2392ba45a9b2, + 0xa7f26836f282b732,0x8e6cac7768d7141e, + 0xd1ef0244af2364ff,0x3207d795430cd926, + 0x8335616aed761f1f,0x7f44e6bd49e807b8, + 0xa402b9c5a8d3a6e7,0x5f16206c9c6209a6, + 0xcd036837130890a1,0x36dba887c37a8c0f, + 0x802221226be55a64,0xc2494954da2c9789, + 0xa02aa96b06deb0fd,0xf2db9baa10b7bd6c, + 0xc83553c5c8965d3d,0x6f92829494e5acc7, + 0xfa42a8b73abbf48c,0xcb772339ba1f17f9, + 0x9c69a97284b578d7,0xff2a760414536efb, + 0xc38413cf25e2d70d,0xfef5138519684aba, + 0xf46518c2ef5b8cd1,0x7eb258665fc25d69, + 0x98bf2f79d5993802,0xef2f773ffbd97a61, + 0xbeeefb584aff8603,0xaafb550ffacfd8fa, + 0xeeaaba2e5dbf6784,0x95ba2a53f983cf38, + 0x952ab45cfa97a0b2,0xdd945a747bf26183, + 0xba756174393d88df,0x94f971119aeef9e4, + 0xe912b9d1478ceb17,0x7a37cd5601aab85d, + 0x91abb422ccb812ee,0xac62e055c10ab33a, + 0xb616a12b7fe617aa,0x577b986b314d6009, + 0xe39c49765fdf9d94,0xed5a7e85fda0b80b, + 0x8e41ade9fbebc27d,0x14588f13be847307, + 0xb1d219647ae6b31c,0x596eb2d8ae258fc8, + 0xde469fbd99a05fe3,0x6fca5f8ed9aef3bb, + 0x8aec23d680043bee,0x25de7bb9480d5854, + 0xada72ccc20054ae9,0xaf561aa79a10ae6a, + 0xd910f7ff28069da4,0x1b2ba1518094da04, + 0x87aa9aff79042286,0x90fb44d2f05d0842, + 0xa99541bf57452b28,0x353a1607ac744a53, + 0xd3fa922f2d1675f2,0x42889b8997915ce8, + 0x847c9b5d7c2e09b7,0x69956135febada11, + 0xa59bc234db398c25,0x43fab9837e699095, + 0xcf02b2c21207ef2e,0x94f967e45e03f4bb, + 0x8161afb94b44f57d,0x1d1be0eebac278f5, + 0xa1ba1ba79e1632dc,0x6462d92a69731732, + 0xca28a291859bbf93,0x7d7b8f7503cfdcfe, + 0xfcb2cb35e702af78,0x5cda735244c3d43e, + 0x9defbf01b061adab,0x3a0888136afa64a7, + 0xc56baec21c7a1916,0x88aaa1845b8fdd0, + 0xf6c69a72a3989f5b,0x8aad549e57273d45, + 0x9a3c2087a63f6399,0x36ac54e2f678864b, + 0xc0cb28a98fcf3c7f,0x84576a1bb416a7dd, + 0xf0fdf2d3f3c30b9f,0x656d44a2a11c51d5, + 0x969eb7c47859e743,0x9f644ae5a4b1b325, + 0xbc4665b596706114,0x873d5d9f0dde1fee, + 0xeb57ff22fc0c7959,0xa90cb506d155a7ea, + 0x9316ff75dd87cbd8,0x9a7f12442d588f2, + 0xb7dcbf5354e9bece,0xc11ed6d538aeb2f, + 0xe5d3ef282a242e81,0x8f1668c8a86da5fa, + 0x8fa475791a569d10,0xf96e017d694487bc, + 0xb38d92d760ec4455,0x37c981dcc395a9ac, + 0xe070f78d3927556a,0x85bbe253f47b1417, + 0x8c469ab843b89562,0x93956d7478ccec8e, + 0xaf58416654a6babb,0x387ac8d1970027b2, + 0xdb2e51bfe9d0696a,0x6997b05fcc0319e, + 0x88fcf317f22241e2,0x441fece3bdf81f03, + 0xab3c2fddeeaad25a,0xd527e81cad7626c3, + 0xd60b3bd56a5586f1,0x8a71e223d8d3b074, + 0x85c7056562757456,0xf6872d5667844e49, + 0xa738c6bebb12d16c,0xb428f8ac016561db, + 0xd106f86e69d785c7,0xe13336d701beba52, + 0x82a45b450226b39c,0xecc0024661173473, + 0xa34d721642b06084,0x27f002d7f95d0190, + 0xcc20ce9bd35c78a5,0x31ec038df7b441f4, + 0xff290242c83396ce,0x7e67047175a15271, + 0x9f79a169bd203e41,0xf0062c6e984d386, + 0xc75809c42c684dd1,0x52c07b78a3e60868, + 0xf92e0c3537826145,0xa7709a56ccdf8a82, + 0x9bbcc7a142b17ccb,0x88a66076400bb691, + 0xc2abf989935ddbfe,0x6acff893d00ea435, + 0xf356f7ebf83552fe,0x583f6b8c4124d43, + 0x98165af37b2153de,0xc3727a337a8b704a, + 0xbe1bf1b059e9a8d6,0x744f18c0592e4c5c, + 0xeda2ee1c7064130c,0x1162def06f79df73, + 0x9485d4d1c63e8be7,0x8addcb5645ac2ba8, + 0xb9a74a0637ce2ee1,0x6d953e2bd7173692, + 0xe8111c87c5c1ba99,0xc8fa8db6ccdd0437, + 0x910ab1d4db9914a0,0x1d9c9892400a22a2, + 0xb54d5e4a127f59c8,0x2503beb6d00cab4b, + 0xe2a0b5dc971f303a,0x2e44ae64840fd61d, + 0x8da471a9de737e24,0x5ceaecfed289e5d2, + 0xb10d8e1456105dad,0x7425a83e872c5f47, + 0xdd50f1996b947518,0xd12f124e28f77719, + 0x8a5296ffe33cc92f,0x82bd6b70d99aaa6f, + 0xace73cbfdc0bfb7b,0x636cc64d1001550b, + 0xd8210befd30efa5a,0x3c47f7e05401aa4e, + 0x8714a775e3e95c78,0x65acfaec34810a71, + 0xa8d9d1535ce3b396,0x7f1839a741a14d0d, + 0xd31045a8341ca07c,0x1ede48111209a050, + 0x83ea2b892091e44d,0x934aed0aab460432, + 0xa4e4b66b68b65d60,0xf81da84d5617853f, + 0xce1de40642e3f4b9,0x36251260ab9d668e, + 0x80d2ae83e9ce78f3,0xc1d72b7c6b426019, + 0xa1075a24e4421730,0xb24cf65b8612f81f, + 0xc94930ae1d529cfc,0xdee033f26797b627, + 0xfb9b7cd9a4a7443c,0x169840ef017da3b1, + 0x9d412e0806e88aa5,0x8e1f289560ee864e, + 0xc491798a08a2ad4e,0xf1a6f2bab92a27e2, + 0xf5b5d7ec8acb58a2,0xae10af696774b1db, + 0x9991a6f3d6bf1765,0xacca6da1e0a8ef29, + 0xbff610b0cc6edd3f,0x17fd090a58d32af3, + 0xeff394dcff8a948e,0xddfc4b4cef07f5b0, + 0x95f83d0a1fb69cd9,0x4abdaf101564f98e, + 0xbb764c4ca7a4440f,0x9d6d1ad41abe37f1, + 0xea53df5fd18d5513,0x84c86189216dc5ed, + 0x92746b9be2f8552c,0x32fd3cf5b4e49bb4, + 0xb7118682dbb66a77,0x3fbc8c33221dc2a1, + 0xe4d5e82392a40515,0xfabaf3feaa5334a, + 0x8f05b1163ba6832d,0x29cb4d87f2a7400e, + 0xb2c71d5bca9023f8,0x743e20e9ef511012, + 0xdf78e4b2bd342cf6,0x914da9246b255416, + 0x8bab8eefb6409c1a,0x1ad089b6c2f7548e, + 0xae9672aba3d0c320,0xa184ac2473b529b1, + 0xda3c0f568cc4f3e8,0xc9e5d72d90a2741e, + 0x8865899617fb1871,0x7e2fa67c7a658892, + 0xaa7eebfb9df9de8d,0xddbb901b98feeab7, + 0xd51ea6fa85785631,0x552a74227f3ea565, + 0x8533285c936b35de,0xd53a88958f87275f, + 0xa67ff273b8460356,0x8a892abaf368f137, + 0xd01fef10a657842c,0x2d2b7569b0432d85, + 0x8213f56a67f6b29b,0x9c3b29620e29fc73, + 0xa298f2c501f45f42,0x8349f3ba91b47b8f, + 0xcb3f2f7642717713,0x241c70a936219a73, + 0xfe0efb53d30dd4d7,0xed238cd383aa0110, + 0x9ec95d1463e8a506,0xf4363804324a40aa, + 0xc67bb4597ce2ce48,0xb143c6053edcd0d5, + 0xf81aa16fdc1b81da,0xdd94b7868e94050a, + 0x9b10a4e5e9913128,0xca7cf2b4191c8326, + 0xc1d4ce1f63f57d72,0xfd1c2f611f63a3f0, + 0xf24a01a73cf2dccf,0xbc633b39673c8cec, + 0x976e41088617ca01,0xd5be0503e085d813, + 0xbd49d14aa79dbc82,0x4b2d8644d8a74e18, + 0xec9c459d51852ba2,0xddf8e7d60ed1219e, + 0x93e1ab8252f33b45,0xcabb90e5c942b503, + 0xb8da1662e7b00a17,0x3d6a751f3b936243, + 0xe7109bfba19c0c9d,0xcc512670a783ad4, + 0x906a617d450187e2,0x27fb2b80668b24c5, + 0xb484f9dc9641e9da,0xb1f9f660802dedf6, + 0xe1a63853bbd26451,0x5e7873f8a0396973, + 0x8d07e33455637eb2,0xdb0b487b6423e1e8, + 0xb049dc016abc5e5f,0x91ce1a9a3d2cda62, + 0xdc5c5301c56b75f7,0x7641a140cc7810fb, + 0x89b9b3e11b6329ba,0xa9e904c87fcb0a9d, + 0xac2820d9623bf429,0x546345fa9fbdcd44, + 0xd732290fbacaf133,0xa97c177947ad4095, + 0x867f59a9d4bed6c0,0x49ed8eabcccc485d, + 0xa81f301449ee8c70,0x5c68f256bfff5a74, + 0xd226fc195c6a2f8c,0x73832eec6fff3111, + 0x83585d8fd9c25db7,0xc831fd53c5ff7eab, + 0xa42e74f3d032f525,0xba3e7ca8b77f5e55, + 0xcd3a1230c43fb26f,0x28ce1bd2e55f35eb, + 0x80444b5e7aa7cf85,0x7980d163cf5b81b3, + 0xa0555e361951c366,0xd7e105bcc332621f, + 0xc86ab5c39fa63440,0x8dd9472bf3fefaa7, + 0xfa856334878fc150,0xb14f98f6f0feb951, + 0x9c935e00d4b9d8d2,0x6ed1bf9a569f33d3, + 0xc3b8358109e84f07,0xa862f80ec4700c8, + 0xf4a642e14c6262c8,0xcd27bb612758c0fa, + 0x98e7e9cccfbd7dbd,0x8038d51cb897789c, + 0xbf21e44003acdd2c,0xe0470a63e6bd56c3, + 0xeeea5d5004981478,0x1858ccfce06cac74, + 0x95527a5202df0ccb,0xf37801e0c43ebc8, + 0xbaa718e68396cffd,0xd30560258f54e6ba, + 0xe950df20247c83fd,0x47c6b82ef32a2069, + 0x91d28b7416cdd27e,0x4cdc331d57fa5441, + 0xb6472e511c81471d,0xe0133fe4adf8e952, + 0xe3d8f9e563a198e5,0x58180fddd97723a6, + 0x8e679c2f5e44ff8f,0x570f09eaa7ea7648,}; + +} // namespace internal +} // namespace simdjson +/* end file src/internal/numberparsing_tables.cpp */ +/* begin file src/internal/simdprune_tables.cpp */ +#if SIMDJSON_IMPLEMENTATION_ARM64 || SIMDJSON_IMPLEMENTATION_ICELAKE || SIMDJSON_IMPLEMENTATION_HASWELL || SIMDJSON_IMPLEMENTATION_WESTMERE || SIMDJSON_IMPLEMENTATION_PPC64 + +#include + +namespace simdjson { // table modified and copied from +namespace internal { // http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetTable +SIMDJSON_DLLIMPORTEXPORT const unsigned char BitsSetTable256mul2[256] = { + 0, 2, 2, 4, 2, 4, 4, 6, 2, 4, 4, 6, 4, 6, 6, 8, 2, 4, 4, + 6, 4, 6, 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 2, 4, 4, 6, 4, 6, + 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, 6, + 8, 8, 10, 8, 10, 10, 12, 2, 4, 4, 6, 4, 6, 6, 8, 4, 6, 6, 8, + 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, + 12, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, 12, 6, 8, + 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 2, 4, 4, 6, 4, + 6, 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, + 6, 8, 8, 10, 8, 10, 10, 12, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, + 10, 8, 10, 10, 12, 6, 8, 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, + 12, 14, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, 12, 6, + 8, 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 6, 8, 8, 10, + 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 8, 10, 10, 12, 10, 12, 12, + 14, 10, 12, 12, 14, 12, 14, 14, 16}; + +SIMDJSON_DLLIMPORTEXPORT const uint8_t pshufb_combine_table[272] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x08, + 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0x00, 0x01, 0x02, 0x03, + 0x04, 0x05, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, + 0x0f, 0xff, 0xff, 0xff, 0x00, 0x01, 0x02, 0x03, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0x00, 0x01, 0x02, 0x08, + 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x00, 0x01, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0x00, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, + 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, +}; + +// 256 * 8 bytes = 2kB, easily fits in cache. +SIMDJSON_DLLIMPORTEXPORT const uint64_t thintable_epi8[256] = { + 0x0706050403020100, 0x0007060504030201, 0x0007060504030200, + 0x0000070605040302, 0x0007060504030100, 0x0000070605040301, + 0x0000070605040300, 0x0000000706050403, 0x0007060504020100, + 0x0000070605040201, 0x0000070605040200, 0x0000000706050402, + 0x0000070605040100, 0x0000000706050401, 0x0000000706050400, + 0x0000000007060504, 0x0007060503020100, 0x0000070605030201, + 0x0000070605030200, 0x0000000706050302, 0x0000070605030100, + 0x0000000706050301, 0x0000000706050300, 0x0000000007060503, + 0x0000070605020100, 0x0000000706050201, 0x0000000706050200, + 0x0000000007060502, 0x0000000706050100, 0x0000000007060501, + 0x0000000007060500, 0x0000000000070605, 0x0007060403020100, + 0x0000070604030201, 0x0000070604030200, 0x0000000706040302, + 0x0000070604030100, 0x0000000706040301, 0x0000000706040300, + 0x0000000007060403, 0x0000070604020100, 0x0000000706040201, + 0x0000000706040200, 0x0000000007060402, 0x0000000706040100, + 0x0000000007060401, 0x0000000007060400, 0x0000000000070604, + 0x0000070603020100, 0x0000000706030201, 0x0000000706030200, + 0x0000000007060302, 0x0000000706030100, 0x0000000007060301, + 0x0000000007060300, 0x0000000000070603, 0x0000000706020100, + 0x0000000007060201, 0x0000000007060200, 0x0000000000070602, + 0x0000000007060100, 0x0000000000070601, 0x0000000000070600, + 0x0000000000000706, 0x0007050403020100, 0x0000070504030201, + 0x0000070504030200, 0x0000000705040302, 0x0000070504030100, + 0x0000000705040301, 0x0000000705040300, 0x0000000007050403, + 0x0000070504020100, 0x0000000705040201, 0x0000000705040200, + 0x0000000007050402, 0x0000000705040100, 0x0000000007050401, + 0x0000000007050400, 0x0000000000070504, 0x0000070503020100, + 0x0000000705030201, 0x0000000705030200, 0x0000000007050302, + 0x0000000705030100, 0x0000000007050301, 0x0000000007050300, + 0x0000000000070503, 0x0000000705020100, 0x0000000007050201, + 0x0000000007050200, 0x0000000000070502, 0x0000000007050100, + 0x0000000000070501, 0x0000000000070500, 0x0000000000000705, + 0x0000070403020100, 0x0000000704030201, 0x0000000704030200, + 0x0000000007040302, 0x0000000704030100, 0x0000000007040301, + 0x0000000007040300, 0x0000000000070403, 0x0000000704020100, + 0x0000000007040201, 0x0000000007040200, 0x0000000000070402, + 0x0000000007040100, 0x0000000000070401, 0x0000000000070400, + 0x0000000000000704, 0x0000000703020100, 0x0000000007030201, + 0x0000000007030200, 0x0000000000070302, 0x0000000007030100, + 0x0000000000070301, 0x0000000000070300, 0x0000000000000703, + 0x0000000007020100, 0x0000000000070201, 0x0000000000070200, + 0x0000000000000702, 0x0000000000070100, 0x0000000000000701, + 0x0000000000000700, 0x0000000000000007, 0x0006050403020100, + 0x0000060504030201, 0x0000060504030200, 0x0000000605040302, + 0x0000060504030100, 0x0000000605040301, 0x0000000605040300, + 0x0000000006050403, 0x0000060504020100, 0x0000000605040201, + 0x0000000605040200, 0x0000000006050402, 0x0000000605040100, + 0x0000000006050401, 0x0000000006050400, 0x0000000000060504, + 0x0000060503020100, 0x0000000605030201, 0x0000000605030200, + 0x0000000006050302, 0x0000000605030100, 0x0000000006050301, + 0x0000000006050300, 0x0000000000060503, 0x0000000605020100, + 0x0000000006050201, 0x0000000006050200, 0x0000000000060502, + 0x0000000006050100, 0x0000000000060501, 0x0000000000060500, + 0x0000000000000605, 0x0000060403020100, 0x0000000604030201, + 0x0000000604030200, 0x0000000006040302, 0x0000000604030100, + 0x0000000006040301, 0x0000000006040300, 0x0000000000060403, + 0x0000000604020100, 0x0000000006040201, 0x0000000006040200, + 0x0000000000060402, 0x0000000006040100, 0x0000000000060401, + 0x0000000000060400, 0x0000000000000604, 0x0000000603020100, + 0x0000000006030201, 0x0000000006030200, 0x0000000000060302, + 0x0000000006030100, 0x0000000000060301, 0x0000000000060300, + 0x0000000000000603, 0x0000000006020100, 0x0000000000060201, + 0x0000000000060200, 0x0000000000000602, 0x0000000000060100, + 0x0000000000000601, 0x0000000000000600, 0x0000000000000006, + 0x0000050403020100, 0x0000000504030201, 0x0000000504030200, + 0x0000000005040302, 0x0000000504030100, 0x0000000005040301, + 0x0000000005040300, 0x0000000000050403, 0x0000000504020100, + 0x0000000005040201, 0x0000000005040200, 0x0000000000050402, + 0x0000000005040100, 0x0000000000050401, 0x0000000000050400, + 0x0000000000000504, 0x0000000503020100, 0x0000000005030201, + 0x0000000005030200, 0x0000000000050302, 0x0000000005030100, + 0x0000000000050301, 0x0000000000050300, 0x0000000000000503, + 0x0000000005020100, 0x0000000000050201, 0x0000000000050200, + 0x0000000000000502, 0x0000000000050100, 0x0000000000000501, + 0x0000000000000500, 0x0000000000000005, 0x0000000403020100, + 0x0000000004030201, 0x0000000004030200, 0x0000000000040302, + 0x0000000004030100, 0x0000000000040301, 0x0000000000040300, + 0x0000000000000403, 0x0000000004020100, 0x0000000000040201, + 0x0000000000040200, 0x0000000000000402, 0x0000000000040100, + 0x0000000000000401, 0x0000000000000400, 0x0000000000000004, + 0x0000000003020100, 0x0000000000030201, 0x0000000000030200, + 0x0000000000000302, 0x0000000000030100, 0x0000000000000301, + 0x0000000000000300, 0x0000000000000003, 0x0000000000020100, + 0x0000000000000201, 0x0000000000000200, 0x0000000000000002, + 0x0000000000000100, 0x0000000000000001, 0x0000000000000000, + 0x0000000000000000, +}; //static uint64_t thintable_epi8[256] + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_IMPLEMENTATION_ARM64 || SIMDJSON_IMPLEMENTATION_ICELAKE || SIMDJSON_IMPLEMENTATION_HASWELL || SIMDJSON_IMPLEMENTATION_WESTMERE || SIMDJSON_IMPLEMENTATION_PPC64 +/* end file src/internal/simdprune_tables.cpp */ +/* begin file src/implementation.cpp */ +#include + +namespace simdjson { + +bool implementation::supported_by_runtime_system() const { + uint32_t required_instruction_sets = this->required_instruction_sets(); + uint32_t supported_instruction_sets = internal::detect_supported_architectures(); + return ((supported_instruction_sets & required_instruction_sets) == required_instruction_sets); +} + +namespace internal { + +// Static array of known implementations. We're hoping these get baked into the executable +// without requiring a static initializer. + +#if SIMDJSON_IMPLEMENTATION_ICELAKE +static const icelake::implementation* get_icelake_singleton() { + static const icelake::implementation icelake_singleton{}; + return &icelake_singleton; +} +#endif +#if SIMDJSON_IMPLEMENTATION_HASWELL +static const haswell::implementation* get_haswell_singleton() { + static const haswell::implementation haswell_singleton{}; + return &haswell_singleton; +} +#endif +#if SIMDJSON_IMPLEMENTATION_WESTMERE +static const westmere::implementation* get_westmere_singleton() { + static const westmere::implementation westmere_singleton{}; + return &westmere_singleton; +} +#endif // SIMDJSON_IMPLEMENTATION_WESTMERE +#if SIMDJSON_IMPLEMENTATION_ARM64 +static const arm64::implementation* get_arm64_singleton() { + static const arm64::implementation arm64_singleton{}; + return &arm64_singleton; +} +#endif // SIMDJSON_IMPLEMENTATION_ARM64 +#if SIMDJSON_IMPLEMENTATION_PPC64 +static const ppc64::implementation* get_ppc64_singleton() { + static const ppc64::implementation ppc64_singleton{}; + return &ppc64_singleton; +} +#endif // SIMDJSON_IMPLEMENTATION_PPC64 +#if SIMDJSON_IMPLEMENTATION_FALLBACK +static const fallback::implementation* get_fallback_singleton() { + static const fallback::implementation fallback_singleton{}; + return &fallback_singleton; +} +#endif // SIMDJSON_IMPLEMENTATION_FALLBACK + +/** + * @private Detects best supported implementation on first use, and sets it + */ +class detect_best_supported_implementation_on_first_use final : public implementation { +public: + const std::string &name() const noexcept final { return set_best()->name(); } + const std::string &description() const noexcept final { return set_best()->description(); } + uint32_t required_instruction_sets() const noexcept final { return set_best()->required_instruction_sets(); } + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final { + return set_best()->create_dom_parser_implementation(capacity, max_length, dst); + } + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final { + return set_best()->minify(buf, len, dst, dst_len); + } + simdjson_warn_unused bool validate_utf8(const char * buf, size_t len) const noexcept final override { + return set_best()->validate_utf8(buf, len); + } + simdjson_inline detect_best_supported_implementation_on_first_use() noexcept : implementation("best_supported_detector", "Detects the best supported implementation and sets it", 0) {} +private: + const implementation *set_best() const noexcept; +}; + +static const std::initializer_list& get_available_implementation_pointers() { + static const std::initializer_list available_implementation_pointers { +#if SIMDJSON_IMPLEMENTATION_ICELAKE + get_icelake_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_HASWELL + get_haswell_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_WESTMERE + get_westmere_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_ARM64 + get_arm64_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_PPC64 + get_ppc64_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_FALLBACK + get_fallback_singleton(), +#endif + }; // available_implementation_pointers + return available_implementation_pointers; +} + +// So we can return UNSUPPORTED_ARCHITECTURE from the parser when there is no support +class unsupported_implementation final : public implementation { +public: + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t, + size_t, + std::unique_ptr& + ) const noexcept final { + return UNSUPPORTED_ARCHITECTURE; + } + simdjson_warn_unused error_code minify(const uint8_t *, size_t, uint8_t *, size_t &) const noexcept final override { + return UNSUPPORTED_ARCHITECTURE; + } + simdjson_warn_unused bool validate_utf8(const char *, size_t) const noexcept final override { + return false; // Just refuse to validate. Given that we have a fallback implementation + // it seems unlikely that unsupported_implementation will ever be used. If it is used, + // then it will flag all strings as invalid. The alternative is to return an error_code + // from which the user has to figure out whether the string is valid UTF-8... which seems + // like a lot of work just to handle the very unlikely case that we have an unsupported + // implementation. And, when it does happen (that we have an unsupported implementation), + // what are the chances that the programmer has a fallback? Given that *we* provide the + // fallback, it implies that the programmer would need a fallback for our fallback. + } + unsupported_implementation() : implementation("unsupported", "Unsupported CPU (no detected SIMD instructions)", 0) {} +}; + +const unsupported_implementation* get_unsupported_singleton() { + static const unsupported_implementation unsupported_singleton{}; + return &unsupported_singleton; +} + +size_t available_implementation_list::size() const noexcept { + return internal::get_available_implementation_pointers().size(); +} +const implementation * const *available_implementation_list::begin() const noexcept { + return internal::get_available_implementation_pointers().begin(); +} +const implementation * const *available_implementation_list::end() const noexcept { + return internal::get_available_implementation_pointers().end(); +} +const implementation *available_implementation_list::detect_best_supported() const noexcept { + // They are prelisted in priority order, so we just go down the list + uint32_t supported_instruction_sets = internal::detect_supported_architectures(); + for (const implementation *impl : internal::get_available_implementation_pointers()) { + uint32_t required_instruction_sets = impl->required_instruction_sets(); + if ((supported_instruction_sets & required_instruction_sets) == required_instruction_sets) { return impl; } + } + return get_unsupported_singleton(); // this should never happen? +} + +const implementation *detect_best_supported_implementation_on_first_use::set_best() const noexcept { + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + char *force_implementation_name = getenv("SIMDJSON_FORCE_IMPLEMENTATION"); + SIMDJSON_POP_DISABLE_WARNINGS + + if (force_implementation_name) { + auto force_implementation = get_available_implementations()[force_implementation_name]; + if (force_implementation) { + return get_active_implementation() = force_implementation; + } else { + // Note: abort() and stderr usage within the library is forbidden. + return get_active_implementation() = get_unsupported_singleton(); + } + } + return get_active_implementation() = get_available_implementations().detect_best_supported(); +} + +} // namespace internal + +SIMDJSON_DLLIMPORTEXPORT const internal::available_implementation_list& get_available_implementations() { + static const internal::available_implementation_list available_implementations{}; + return available_implementations; +} + +SIMDJSON_DLLIMPORTEXPORT internal::atomic_ptr& get_active_implementation() { + static const internal::detect_best_supported_implementation_on_first_use detect_best_supported_implementation_on_first_use_singleton; + static internal::atomic_ptr active_implementation{&detect_best_supported_implementation_on_first_use_singleton}; + return active_implementation; +} + +simdjson_warn_unused error_code minify(const char *buf, size_t len, char *dst, size_t &dst_len) noexcept { + return get_active_implementation()->minify(reinterpret_cast(buf), len, reinterpret_cast(dst), dst_len); +} +simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) noexcept { + return get_active_implementation()->validate_utf8(buf, len); +} +const implementation * builtin_implementation() { + static const implementation * builtin_impl = get_available_implementations()[SIMDJSON_STRINGIFY(SIMDJSON_BUILTIN_IMPLEMENTATION)]; + assert(builtin_impl); + return builtin_impl; +} + + +} // namespace simdjson +/* end file src/implementation.cpp */ + +#if SIMDJSON_IMPLEMENTATION_ARM64 +/* begin file src/arm64/implementation.cpp */ +/* begin file include/simdjson/arm64/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "arm64" +// #define SIMDJSON_IMPLEMENTATION arm64 +/* end file include/simdjson/arm64/begin.h */ + +namespace simdjson { +namespace arm64 { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + +} // namespace arm64 +} // namespace simdjson + +/* begin file include/simdjson/arm64/end.h */ +/* end file include/simdjson/arm64/end.h */ +/* end file src/arm64/implementation.cpp */ +/* begin file src/arm64/dom_parser_implementation.cpp */ +/* begin file include/simdjson/arm64/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "arm64" +// #define SIMDJSON_IMPLEMENTATION arm64 +/* end file include/simdjson/arm64/begin.h */ + +// +// Stage 1 +// +namespace simdjson { +namespace arm64 { +namespace { + +using namespace simd; + +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); + + simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } + simdjson_inline uint64_t op() const noexcept { return _op; } + simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } + + uint64_t _whitespace; + uint64_t _op; +}; + +simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { + // Functional programming causes trouble with Visual Studio. + // Keeping this version in comments since it is much nicer: + // auto v = in.map([&](simd8 chunk) { + // auto nib_lo = chunk & 0xf; + // auto nib_hi = chunk.shr<4>(); + // auto shuf_lo = nib_lo.lookup_16(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0); + // auto shuf_hi = nib_hi.lookup_16(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0); + // return shuf_lo & shuf_hi; + // }); + const simd8 table1(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0); + const simd8 table2(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0); + + simd8x64 v( + (in.chunks[0] & 0xf).lookup_16(table1) & (in.chunks[0].shr<4>()).lookup_16(table2), + (in.chunks[1] & 0xf).lookup_16(table1) & (in.chunks[1].shr<4>()).lookup_16(table2), + (in.chunks[2] & 0xf).lookup_16(table1) & (in.chunks[2].shr<4>()).lookup_16(table2), + (in.chunks[3] & 0xf).lookup_16(table1) & (in.chunks[3].shr<4>()).lookup_16(table2) + ); + + + // We compute whitespace and op separately. If the code later only use one or the + // other, given the fact that all functions are aggressively inlined, we can + // hope that useless computations will be omitted. This is namely case when + // minifying (we only need whitespace). *However* if we only need spaces, + // it is likely that we will still compute 'v' above with two lookup_16: one + // could do it a bit cheaper. This is in contrast with the x64 implementations + // where we can, efficiently, do the white space and structural matching + // separately. One reason for this difference is that on ARM NEON, the table + // lookups either zero or leave unchanged the characters exceeding 0xF whereas + // on x64, the equivalent instruction (pshufb) automatically applies a mask, + // ignoring the 4 most significant bits. Thus the x64 implementation is + // optimized differently. This being said, if you use this code strictly + // just for minification (or just to identify the structural characters), + // there is a small untaken optimization opportunity here. We deliberately + // do not pick it up. + + uint64_t op = simd8x64( + v.chunks[0].any_bits_set(0x7), + v.chunks[1].any_bits_set(0x7), + v.chunks[2].any_bits_set(0x7), + v.chunks[3].any_bits_set(0x7) + ).to_bitmask(); + + uint64_t whitespace = simd8x64( + v.chunks[0].any_bits_set(0x18), + v.chunks[1].any_bits_set(0x18), + v.chunks[2].any_bits_set(0x18), + v.chunks[3].any_bits_set(0x18) + ).to_bitmask(); + + return { whitespace, op }; +} + +simdjson_inline bool is_ascii(const simd8x64& input) { + simd8 bits = input.reduce_or(); + return bits.max_val() < 0x80u; +} + +simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { + simd8 is_second_byte = prev1 >= uint8_t(0xc0u); + simd8 is_third_byte = prev2 >= uint8_t(0xe0u); + simd8 is_fourth_byte = prev3 >= uint8_t(0xf0u); + // Use ^ instead of | for is_*_byte, because ^ is commutative, and the caller is using ^ as well. + // This will work fine because we only have to report errors for cases with 0-1 lead bytes. + // Multiple lead bytes implies 2 overlapping multibyte characters, and if that happens, there is + // guaranteed to be at least *one* lead byte that is part of only 1 other multibyte character. + // The error will be detected there. + return is_second_byte ^ is_third_byte ^ is_fourth_byte; +} + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { + simd8 is_third_byte = prev2 >= uint8_t(0xe0u); + simd8 is_fourth_byte = prev3 >= uint8_t(0xf0u); + return is_third_byte ^ is_fourth_byte; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +namespace simdjson { +namespace arm64 { +namespace { +namespace utf8_validation { + +using namespace simd; + + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, + + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } + + // + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. + // + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } + + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; + + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); + } + + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; + } + +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation + +using utf8_validation::utf8_checker; + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ +/* begin file src/generic/stage1/json_structural_indexer.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +/* begin file src/generic/stage1/buf_block_reader.h */ +namespace simdjson { +namespace arm64 { +namespace { + +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; + } + buf[64] = '\0'; + return buf; +} + +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } + +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; +} + +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; +} + +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; +} + +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage1/buf_block_reader.h */ +/* begin file src/generic/stage1/json_string_scanner.h */ +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : + _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} + + // Escaped characters (characters following an escape() character) + simdjson_inline uint64_t escaped() const { return _escaped; } + // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) + simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } + // Real (non-backslashed) quotes + simdjson_inline uint64_t quote() const { return _quote; } + // Start quotes of strings + simdjson_inline uint64_t string_start() const { return _quote & _in_string; } + // End quotes of strings + simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } + // Only characters inside the string (not including the quotes) + simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } + + // backslash characters + uint64_t _backslash; + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-backslashed ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; + +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Intended to be defined by the implementation + simdjson_inline uint64_t find_escaped(uint64_t escape); + simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); + + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; + // Whether the first character of the next iteration is escaped. + uint64_t prev_escaped = 0ULL; +}; + +// +// Finds escaped characters (characters following \). +// +// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). +// +// Does this by: +// - Shift the escape mask to get potentially escaped characters (characters after backslashes). +// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) +// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) +// +// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all +// escape sequences, filters out the ones that start on even bits, and adds that to the mask of +// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since +// the start bit causes a carry), and leaves even-bit sequences alone. +// +// Example: +// +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape +// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape +// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later +// invert_mask | | cxxx c xx c| even_seq << 1 +// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit +// escaped | x | x x x x x x x x | +// desired | x | x x x x x x x x | +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// +simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { + // If there was overflow, pretend the first character isn't a backslash + backslash &= ~prev_escaped; + uint64_t follows_escape = backslash << 1 | prev_escaped; + + // Get sequences starting on even bits by clearing out the odd series using + + const uint64_t even_bits = 0x5555555555555555ULL; + uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; + uint64_t sequences_starting_on_even_bits; + prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); + uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. + + // Mask every other backslashed character as an escaped character + // Flip the mask for sequences that start on even bits, to correct them + return (even_bits ^ invert_mask) & follows_escape; +} + +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = find_escaped(backslash); + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + // right shift of a signed value expected to be well-defined and standard + // compliant as of C++20, John Regher from Utah U. says this is fine code + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block( + backslash, + escaped, + quote, + in_string + ); +} + +simdjson_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage1/json_string_scanner.h */ +/* begin file src/generic/stage1/json_scanner.h */ +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +/** + * A block of scanned json, with information on operators and scalars. + * + * We seek to identify pseudo-structural characters. Anything that is inside + * a string must be omitted (hence & ~_string.string_tail()). + * Otherwise, pseudo-structural characters come in two forms. + * 1. We have the structural characters ([,],{,},:, comma). The + * term 'structural character' is from the JSON RFC. + * 2. We have the 'scalar pseudo-structural characters'. + * Scalars are quotes, and any character except structural characters and white space. + * + * To identify the scalar pseudo-structural characters, we must look at what comes + * before them: it must be a space, a quote or a structural characters. + * Starting with simdjson v0.3, we identify them by + * negation: we identify everything that is followed by a non-quote scalar, + * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. + */ +struct json_block { +public: + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + + /** + * The start of structurals. + * In simdjson prior to v0.3, these were called the pseudo-structural characters. + **/ + simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } + /** All JSON whitespace (i.e. not in a string) */ + simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } + + // Helpers + + /** Whether the given characters are inside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } + /** Whether the given characters are outside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } + + // string and escape characters + json_string_block _string; + // whitespace, structural characters ('operators'), scalars + json_character_block _characters; + // whether the previous character was a scalar + uint64_t _follows_potential_nonquote_scalar; +private: + // Potential structurals (i.e. disregarding strings) + + /** + * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". + * They may reside inside a string. + **/ + simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } + /** + * The start of non-operator runs, like 123, true and "abc". + * It main reside inside a string. + **/ + simdjson_inline uint64_t potential_scalar_start() const noexcept { + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space + // then we know that it is irrelevant structurally. + return _characters.scalar() & ~follows_potential_scalar(); + } + /** + * Whether the given character is immediately after a non-operator like 123, true. + * The characters following a quote are not included. + */ + simdjson_inline uint64_t follows_potential_scalar() const noexcept { + // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character + // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a + // white space. + // It is understood that within quoted region, anything at all could be marked (irrelevant). + return _follows_potential_nonquote_scalar; + } +}; + +/** + * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. + * + * The scanner starts by calculating two distinct things: + * - string characters (taking \" into account) + * - structural characters or 'operators' ([]{},:, comma) + * and scalars (runs of non-operators like 123, true and "abc") + * + * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: + * in particular, the operator/scalar bit will find plenty of things that are actually part of + * strings. When we're done, json_block will fuse the two together by masking out tokens that are + * part of a string. + */ +class json_scanner { +public: + json_scanner() = default; + simdjson_inline json_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Whether the last character of the previous iteration is part of a scalar token + // (anything except whitespace or a structural character/'operator'). + uint64_t prev_scalar = 0ULL; + json_string_scanner string_scanner{}; +}; + + +// +// Check if the current character immediately follows a matching character. +// +// For example, this checks for quotes with backslashes in front of them: +// +// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); +// +simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { + const uint64_t result = match << 1 | overflow; + overflow = match >> 63; + return result; +} + +simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { + json_string_block strings = string_scanner.next(in); + // identifies the white-space and the structural characters + json_character_block characters = json_character_block::classify(in); + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // + // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) + // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential + // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we + // may need to add an extra check when parsing strings. + // + // Performance: there are many ways to skin this cat. + const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); + uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); +} + +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage1/json_scanner.h */ +/* begin file src/generic/stage1/json_minifier.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage1/json_minifier.h */ +/* begin file src/generic/stage1/find_next_document_index.h */ +namespace simdjson { +namespace arm64 { +namespace { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage1/find_next_document_index.h */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +class bit_indexer { +public: + uint32_t *tail; + + simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} + + // flatten out values in 'bits' assuming that they are are to have values of idx + // plus their position in the bitvector, and store these indexes at + // base_ptr[base] incrementing base as we go + // will potentially store extra values beyond end of valid bits, so base_ptr + // needs to be large enough to handle this + // + // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own + // version of the code. +#ifdef SIMDJSON_CUSTOM_BIT_INDEXER + simdjson_inline void write(uint32_t idx, uint64_t bits); +#else + simdjson_inline void write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) + return; +#if SIMDJSON_PREFER_REVERSE_BITS + /** + * ARM lacks a fast trailing zero instruction, but it has a fast + * bit reversal instruction and a fast leading zero instruction. + * Thus it may be profitable to reverse the bits (once) and then + * to rely on a sequence of instructions that call the leading + * zero instruction. + * + * Performance notes: + * The chosen routine is not optimal in terms of data dependency + * since zero_leading_bit might require two instructions. However, + * it tends to minimize the total number of instructions which is + * beneficial. + */ + + uint64_t rev_bits = reverse_bits(bits); + int cnt = static_cast(count_ones(bits)); + int i = 0; + // Do the first 8 all together + for (; i<8; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + i = 8; + for (; i<16; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + i = 16; + while (rev_bits != 0) { + int lz = leading_zeroes(rev_bits); + this->tail[i++] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + } + } + this->tail += cnt; +#else // SIMDJSON_PREFER_REVERSE_BITS + /** + * Under recent x64 systems, we often have both a fast trailing zero + * instruction and a fast 'clear-lower-bit' instruction so the following + * algorithm can be competitive. + */ + + int cnt = static_cast(count_ones(bits)); + // Do the first 8 all together + for (int i=0; i<8; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + for (int i=8; i<16; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + int i = 16; + do { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + i++; + } while (i < cnt); + } + } + + this->tail += cnt; +#endif + } +#endif // SIMDJSON_CUSTOM_BIT_INDEXER + +}; + +class json_structural_indexer { +public: + /** + * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. + * + * @param partial Setting the partial parameter to true allows the find_structural_bits to + * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If + * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. + */ + template + static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; + +private: + simdjson_inline json_structural_indexer(uint32_t *structural_indexes); + template + simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); + simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); + + json_scanner scanner{}; + utf8_checker checker{}; + bit_indexer indexer; + uint64_t prev_structurals = 0; + uint64_t unescaped_chars_error = 0; +}; + +simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} + +// Skip the last character if it is partial +simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { + if (simdjson_unlikely(len < 3)) { + switch (len) { + case 2: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left + return len; + case 1: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + return len; + case 0: + return len; + } + } + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left + if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left + return len; +} + +// +// PERF NOTES: +// We pipe 2 inputs through these stages: +// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load +// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. +// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. +// The output of step 1 depends entirely on this information. These functions don't quite use +// up enough CPU: the second half of the functions is highly serial, only using 1 execution core +// at a time. The second input's scans has some dependency on the first ones finishing it, but +// they can make a lot of progress before they need that information. +// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that +// to finish: utf-8 checks and generating the output from the last iteration. +// +// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all +// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough +// workout. +// +template +error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { + if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } + // We guard the rest of the code so that we can assume that len > 0 throughout. + if (len == 0) { return EMPTY; } + if (is_streaming(partial)) { + len = trim_partial_utf8(buf, len); + // If you end up with an empty window after trimming + // the partial UTF-8 bytes, then chances are good that you + // have an UTF-8 formatting error. + if(len == 0) { return UTF8_ERROR; } + } + buf_block_reader reader(buf, len); + json_structural_indexer indexer(parser.structural_indexes.get()); + + // Read all but the last block + while (reader.has_full_block()) { + indexer.step(reader.full_block(), reader); + } + // Take care of the last block (will always be there unless file is empty which is + // not supposed to happen.) + uint8_t block[STEP_SIZE]; + if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } + indexer.step(block, reader); + return indexer.finish(parser, reader.block_index(), len, partial); +} + +template<> +simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block); + simd::simd8x64 in_2(block+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1, reader.block_index()); + this->next(in_2, block_2, reader.block_index()+64); + reader.advance(); +} + +template<> +simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block); + json_block block_1 = scanner.next(in_1); + this->next(in_1, block_1, reader.block_index()); + reader.advance(); +} + +simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { + uint64_t unescaped = in.lteq(0x1F); +#if SIMDJSON_UTF8VALIDATION + checker.check_next_input(in); +#endif + indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser + prev_structurals = block.structural_start(); + unescaped_chars_error |= block.non_quote_inside_string(unescaped); +} + +simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { + // Write out the final iteration's structurals + indexer.write(uint32_t(idx-64), prev_structurals); + error_code error = scanner.finish(); + // We deliberately break down the next expression so that it is + // human readable. + const bool should_we_exit = is_streaming(partial) ? + ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING + : (error != SUCCESS); // if partial is false, we must have SUCCESS + const bool have_unclosed_string = (error == UNCLOSED_STRING); + if (simdjson_unlikely(should_we_exit)) { return error; } + + if (unescaped_chars_error) { + return UNESCAPED_CHARS; + } + parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); + /*** + * The On Demand API requires special padding. + * + * This is related to https://github.com/simdjson/simdjson/issues/906 + * Basically, we want to make sure that if the parsing continues beyond the last (valid) + * structural character, it quickly stops. + * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. + * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing + * continues, then it must be [,] or }. + * Suppose it is ] or }. We backtrack to the first character, what could it be that would + * not trigger an error? It could be ] or } but no, because you can't start a document that way. + * It can't be a comma, a colon or any simple value. So the only way we could continue is + * if the repeated character is [. But if so, the document must start with [. But if the document + * starts with [, it should end with ]. If we enforce that rule, then we would get + * ][[ which is invalid. + * + * This is illustrated with the test array_iterate_unclosed_error() on the following input: + * R"({ "a": [,,)" + **/ + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final + parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); + parser.structural_indexes[parser.n_structural_indexes + 2] = 0; + parser.next_structural_index = 0; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + return EMPTY; + } + if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { + return UNEXPECTED_ERROR; + } + if (partial == stage1_mode::streaming_partial) { + // If we have an unclosed string, then the last structural + // will be the quote and we want to make sure to omit it. + if(have_unclosed_string) { + parser.n_structural_indexes--; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } + } + // We truncate the input to the end of the last complete document (or zero). + auto new_structural_indexes = find_next_document_index(parser); + if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + + parser.n_structural_indexes = new_structural_indexes; + } else if (partial == stage1_mode::streaming_final) { + if(have_unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + // We tolerate an unclosed string at the very end of the stream. Indeed, users + // often load their data in bulk without being careful and they want us to ignore + // the trailing garbage. + return EMPTY; + } + } + checker.check_eof(); + return checker.errors(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage1/json_structural_indexer.h */ +/* begin file src/generic/stage1/utf8_validator.h */ +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +/** + * Validates that the string is actual UTF-8. + */ +template +bool generic_validate_utf8(const uint8_t * input, size_t length) { + checker c{}; + buf_block_reader<64> reader(input, length); + while (reader.has_full_block()) { + simd::simd8x64 in(reader.full_block()); + c.check_next_input(in); + reader.advance(); + } + uint8_t block[64]{}; + reader.get_remainder(block); + simd::simd8x64 in(block); + c.check_next_input(in); + reader.advance(); + c.check_eof(); + return c.errors() == error_code::SUCCESS; +} + +bool generic_validate_utf8(const char * input, size_t length) { + return generic_validate_utf8(reinterpret_cast(input),length); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage1/utf8_validator.h */ + +// +// Stage 2 +// + +/* begin file src/generic/stage2/stringparsing.h */ +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace arm64 { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage2/stringparsing.h */ +/* begin file src/generic/stage2/tape_builder.h */ +/* begin file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/logger.h */ +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace arm64 { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/tape_writer.h */ +namespace simdjson { +namespace arm64 { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct number_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage2/tape_writer.h */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; + + simdjson_inline tape_builder(dom::document &doc) noexcept; + + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // class tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +// private: + +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} + +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; +} + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file src/generic/stage2/tape_builder.h */ + +// +// Implementation-specific overrides +// +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { + // On ARM, we don't short-circuit this if there are no backslashes, because the branch gives us no + // benefit and therefore makes things worse. + // if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } + return find_escaped_branchless(backslash); +} + +} // namespace stage1 +} // unnamed namespace + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return arm64::stage1::json_minifier::minify<64>(buf, len, dst, dst_len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return arm64::stage1::json_structural_indexer::index<64>(buf, len, *this, streaming); +} + +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return arm64::stage1::generic_validate_utf8(buf,len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept { + return arm64::stringparsing::parse_string(src, dst, allow_replacement); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return arm64::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace arm64 +} // namespace simdjson + +/* begin file include/simdjson/arm64/end.h */ +/* end file include/simdjson/arm64/end.h */ +/* end file src/arm64/dom_parser_implementation.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_FALLBACK +/* begin file src/fallback/implementation.cpp */ +/* begin file include/simdjson/fallback/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "fallback" +// #define SIMDJSON_IMPLEMENTATION fallback +/* end file include/simdjson/fallback/begin.h */ +namespace simdjson { +namespace fallback { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + +} // namespace fallback +} // namespace simdjson + +/* begin file include/simdjson/fallback/end.h */ +/* end file include/simdjson/fallback/end.h */ +/* end file src/fallback/implementation.cpp */ +/* begin file src/fallback/dom_parser_implementation.cpp */ +/* begin file include/simdjson/fallback/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "fallback" +// #define SIMDJSON_IMPLEMENTATION fallback +/* end file include/simdjson/fallback/begin.h */ + +// +// Stage 1 +// +/* begin file src/generic/stage1/find_next_document_index.h */ +namespace simdjson { +namespace fallback { +namespace { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson +/* end file src/generic/stage1/find_next_document_index.h */ + +namespace simdjson { +namespace fallback { +namespace { +namespace stage1 { + +class structural_scanner { +public: + +simdjson_inline structural_scanner(dom_parser_implementation &_parser, stage1_mode _partial) + : buf{_parser.buf}, + next_structural_index{_parser.structural_indexes.get()}, + parser{_parser}, + len{static_cast(_parser.len)}, + partial{_partial} { +} + +simdjson_inline void add_structural() { + *next_structural_index = idx; + next_structural_index++; +} + +simdjson_inline bool is_continuation(uint8_t c) { + return (c & 0xc0) == 0x80; +} + +simdjson_inline void validate_utf8_character() { + // Continuation + if (simdjson_unlikely((buf[idx] & 0x40) == 0)) { + // extra continuation + error = UTF8_ERROR; + idx++; + return; + } + + // 2-byte + if ((buf[idx] & 0x20) == 0) { + // missing continuation + if (simdjson_unlikely(idx+1 > len || !is_continuation(buf[idx+1]))) { + if (idx+1 > len && is_streaming(partial)) { idx = len; return; } + error = UTF8_ERROR; + idx++; + return; + } + // overlong: 1100000_ 10______ + if (buf[idx] <= 0xc1) { error = UTF8_ERROR; } + idx += 2; + return; + } + + // 3-byte + if ((buf[idx] & 0x10) == 0) { + // missing continuation + if (simdjson_unlikely(idx+2 > len || !is_continuation(buf[idx+1]) || !is_continuation(buf[idx+2]))) { + if (idx+2 > len && is_streaming(partial)) { idx = len; return; } + error = UTF8_ERROR; + idx++; + return; + } + // overlong: 11100000 100_____ ________ + if (buf[idx] == 0xe0 && buf[idx+1] <= 0x9f) { error = UTF8_ERROR; } + // surrogates: U+D800-U+DFFF 11101101 101_____ + if (buf[idx] == 0xed && buf[idx+1] >= 0xa0) { error = UTF8_ERROR; } + idx += 3; + return; + } + + // 4-byte + // missing continuation + if (simdjson_unlikely(idx+3 > len || !is_continuation(buf[idx+1]) || !is_continuation(buf[idx+2]) || !is_continuation(buf[idx+3]))) { + if (idx+2 > len && is_streaming(partial)) { idx = len; return; } + error = UTF8_ERROR; + idx++; + return; + } + // overlong: 11110000 1000____ ________ ________ + if (buf[idx] == 0xf0 && buf[idx+1] <= 0x8f) { error = UTF8_ERROR; } + // too large: > U+10FFFF: + // 11110100 (1001|101_)____ + // 1111(1___|011_|0101) 10______ + // also includes 5, 6, 7 and 8 byte characters: + // 11111___ + if (buf[idx] == 0xf4 && buf[idx+1] >= 0x90) { error = UTF8_ERROR; } + if (buf[idx] >= 0xf5) { error = UTF8_ERROR; } + idx += 4; +} + +// Returns true if the string is unclosed. +simdjson_inline bool validate_string() { + idx++; // skip first quote + while (idx < len && buf[idx] != '"') { + if (buf[idx] == '\\') { + idx += 2; + } else if (simdjson_unlikely(buf[idx] & 0x80)) { + validate_utf8_character(); + } else { + if (buf[idx] < 0x20) { error = UNESCAPED_CHARS; } + idx++; + } + } + if (idx >= len) { return true; } + return false; +} + +simdjson_inline bool is_whitespace_or_operator(uint8_t c) { + switch (c) { + case '{': case '}': case '[': case ']': case ',': case ':': + case ' ': case '\r': case '\n': case '\t': + return true; + default: + return false; + } +} + +// +// Parse the entire input in STEP_SIZE-byte chunks. +// +simdjson_inline error_code scan() { + bool unclosed_string = false; + for (;idx 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + parser.n_structural_indexes = new_structural_indexes; + } else if(partial == stage1_mode::streaming_final) { + if(unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (parser.n_structural_indexes == 0) { return EMPTY; } + } else if(unclosed_string) { error = UNCLOSED_STRING; } + return error; +} + +private: + const uint8_t *buf; + uint32_t *next_structural_index; + dom_parser_implementation &parser; + uint32_t len; + uint32_t idx{0}; + error_code error{SUCCESS}; + stage1_mode partial; +}; // structural_scanner + +} // namespace stage1 +} // unnamed namespace + +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode partial) noexcept { + this->buf = _buf; + this->len = _len; + stage1::structural_scanner scanner(*this, partial); + return scanner.scan(); +} + +// big table for the minifier +static uint8_t jump_table[256 * 3] = { + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, + 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, +}; + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + size_t i = 0, pos = 0; + uint8_t quote = 0; + uint8_t nonescape = 1; + + while (i < len) { + unsigned char c = buf[i]; + uint8_t *meta = jump_table + 3 * c; + + quote = quote ^ (meta[0] & nonescape); + dst[pos] = c; + pos += meta[2] | quote; + + i += 1; + nonescape = uint8_t(~nonescape) | (meta[1]); + } + dst_len = pos; // we intentionally do not work with a reference + // for fear of aliasing + return quote ? UNCLOSED_STRING : SUCCESS; +} + +// credit: based on code from Google Fuchsia (Apache Licensed) +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + const uint8_t *data = reinterpret_cast(buf); + uint64_t pos = 0; + uint32_t code_point = 0; + while (pos < len) { + // check of the next 8 bytes are ascii. + uint64_t next_pos = pos + 16; + if (next_pos <= len) { // if it is safe to read 8 more bytes, check that they are ascii + uint64_t v1; + memcpy(&v1, data + pos, sizeof(uint64_t)); + uint64_t v2; + memcpy(&v2, data + pos + sizeof(uint64_t), sizeof(uint64_t)); + uint64_t v{v1 | v2}; + if ((v & 0x8080808080808080) == 0) { + pos = next_pos; + continue; + } + } + unsigned char byte = data[pos]; + if (byte < 0x80) { + pos++; + continue; + } else if ((byte & 0xe0) == 0xc0) { + next_pos = pos + 2; + if (next_pos > len) { return false; } + if ((data[pos + 1] & 0xc0) != 0x80) { return false; } + // range check + code_point = (byte & 0x1f) << 6 | (data[pos + 1] & 0x3f); + if (code_point < 0x80 || 0x7ff < code_point) { return false; } + } else if ((byte & 0xf0) == 0xe0) { + next_pos = pos + 3; + if (next_pos > len) { return false; } + if ((data[pos + 1] & 0xc0) != 0x80) { return false; } + if ((data[pos + 2] & 0xc0) != 0x80) { return false; } + // range check + code_point = (byte & 0x0f) << 12 | + (data[pos + 1] & 0x3f) << 6 | + (data[pos + 2] & 0x3f); + if (code_point < 0x800 || 0xffff < code_point || + (0xd7ff < code_point && code_point < 0xe000)) { + return false; + } + } else if ((byte & 0xf8) == 0xf0) { // 0b11110000 + next_pos = pos + 4; + if (next_pos > len) { return false; } + if ((data[pos + 1] & 0xc0) != 0x80) { return false; } + if ((data[pos + 2] & 0xc0) != 0x80) { return false; } + if ((data[pos + 3] & 0xc0) != 0x80) { return false; } + // range check + code_point = + (byte & 0x07) << 18 | (data[pos + 1] & 0x3f) << 12 | + (data[pos + 2] & 0x3f) << 6 | (data[pos + 3] & 0x3f); + if (code_point <= 0xffff || 0x10ffff < code_point) { return false; } + } else { + // we may have a continuation + return false; + } + pos = next_pos; + } + return true; +} + +} // namespace fallback +} // namespace simdjson + +// +// Stage 2 +// +/* begin file src/generic/stage2/stringparsing.h */ +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace fallback { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace fallback +} // namespace simdjson +/* end file src/generic/stage2/stringparsing.h */ +/* begin file src/generic/stage2/tape_builder.h */ +/* begin file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/logger.h */ +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace fallback { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace fallback +} // namespace simdjson +/* end file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/tape_writer.h */ +namespace simdjson { +namespace fallback { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct number_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace fallback +} // namespace simdjson +/* end file src/generic/stage2/tape_writer.h */ + +namespace simdjson { +namespace fallback { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; + + simdjson_inline tape_builder(dom::document &doc) noexcept; + + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // class tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +// private: + +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} + +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; +} + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 +} // unnamed namespace +} // namespace fallback +} // namespace simdjson +/* end file src/generic/stage2/tape_builder.h */ + +namespace simdjson { +namespace fallback { + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return fallback::stringparsing::parse_string(src, dst, replacement_char); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return fallback::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace fallback +} // namespace simdjson + +/* begin file include/simdjson/fallback/end.h */ +/* end file include/simdjson/fallback/end.h */ +/* end file src/fallback/dom_parser_implementation.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_ICELAKE +/* begin file src/icelake/implementation.cpp */ +/* begin file include/simdjson/icelake/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "icelake" +// #define SIMDJSON_IMPLEMENTATION icelake +SIMDJSON_TARGET_ICELAKE +/* end file include/simdjson/icelake/begin.h */ + +namespace simdjson { +namespace icelake { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + +} // namespace icelake +} // namespace simdjson + +/* begin file include/simdjson/icelake/end.h */ +SIMDJSON_UNTARGET_ICELAKE +/* end file include/simdjson/icelake/end.h */ + +/* end file src/icelake/implementation.cpp */ +/* begin file src/icelake/dom_parser_implementation.cpp */ +/* begin file include/simdjson/icelake/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "icelake" +// #define SIMDJSON_IMPLEMENTATION icelake +SIMDJSON_TARGET_ICELAKE +/* end file include/simdjson/icelake/begin.h */ + +// +// Stage 1 +// + +namespace simdjson { +namespace icelake { +namespace { + +using namespace simd; + +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); + // ASCII white-space ('\r','\n','\t',' ') + simdjson_inline uint64_t whitespace() const noexcept; + // non-quote structural characters (comma, colon, braces, brackets) + simdjson_inline uint64_t op() const noexcept; + // neither a structural character nor a white-space, so letters, numbers and quotes + simdjson_inline uint64_t scalar() const noexcept; + + uint64_t _whitespace; // ASCII white-space ('\r','\n','\t',' ') + uint64_t _op; // structural characters (comma, colon, braces, brackets but not quotes) +}; + +simdjson_inline uint64_t json_character_block::whitespace() const noexcept { return _whitespace; } +simdjson_inline uint64_t json_character_block::op() const noexcept { return _op; } +simdjson_inline uint64_t json_character_block::scalar() const noexcept { return ~(op() | whitespace()); } + +// This identifies structural characters (comma, colon, braces, brackets), +// and ASCII white-space ('\r','\n','\t',' '). +simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { + // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why + // we can't use the generic lookup_16. + const auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); + + // The 6 operators (:,[]{}) have these values: + // + // , 2C + // : 3A + // [ 5B + // { 7B + // ] 5D + // } 7D + // + // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. + // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then + // match it (against | 0x20). + // + // To prevent recognizing other characters, everything else gets compared with 0, which cannot + // match due to the | 0x20. + // + // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , + // and :. This gets caught in stage 2, which checks the actual character to ensure the right + // operators are in the right places. + const auto op_table = simd8::repeat_16( + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B + ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D + ); + + // We compute whitespace and op separately. If later code only uses one or the + // other, given the fact that all functions are aggressively inlined, we can + // hope that useless computations will be omitted. This is namely case when + // minifying (we only need whitespace). + + const uint64_t whitespace = in.eq({ + _mm512_shuffle_epi8(whitespace_table, in.chunks[0]) + }); + // Turn [ and ] into { and } + const simd8x64 curlified{ + in.chunks[0] | 0x20 + }; + const uint64_t op = curlified.eq({ + _mm512_shuffle_epi8(op_table, in.chunks[0]) + }); + + return { whitespace, op }; +} + +simdjson_inline bool is_ascii(const simd8x64& input) { + return input.reduce_or().is_ascii(); +} + +simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { + simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); +} + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_third_byte | is_fourth_byte) > int8_t(0); +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +namespace simdjson { +namespace icelake { +namespace { +namespace utf8_validation { + +using namespace simd; + + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, + + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } + + // + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. + // + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } + + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; + + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); + } + + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; + } + +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation + +using utf8_validation::utf8_checker; + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ +// defining SIMDJSON_CUSTOM_BIT_INDEXER allows us to provide our own bit_indexer::write +#define SIMDJSON_CUSTOM_BIT_INDEXER +/* begin file src/generic/stage1/json_structural_indexer.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +/* begin file src/generic/stage1/buf_block_reader.h */ +namespace simdjson { +namespace icelake { +namespace { + +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; + } + buf[64] = '\0'; + return buf; +} + +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } + +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; +} + +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; +} + +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; +} + +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage1/buf_block_reader.h */ +/* begin file src/generic/stage1/json_string_scanner.h */ +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { + +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : + _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} + + // Escaped characters (characters following an escape() character) + simdjson_inline uint64_t escaped() const { return _escaped; } + // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) + simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } + // Real (non-backslashed) quotes + simdjson_inline uint64_t quote() const { return _quote; } + // Start quotes of strings + simdjson_inline uint64_t string_start() const { return _quote & _in_string; } + // End quotes of strings + simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } + // Only characters inside the string (not including the quotes) + simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } + + // backslash characters + uint64_t _backslash; + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-backslashed ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; + +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Intended to be defined by the implementation + simdjson_inline uint64_t find_escaped(uint64_t escape); + simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); + + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; + // Whether the first character of the next iteration is escaped. + uint64_t prev_escaped = 0ULL; +}; + +// +// Finds escaped characters (characters following \). +// +// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). +// +// Does this by: +// - Shift the escape mask to get potentially escaped characters (characters after backslashes). +// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) +// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) +// +// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all +// escape sequences, filters out the ones that start on even bits, and adds that to the mask of +// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since +// the start bit causes a carry), and leaves even-bit sequences alone. +// +// Example: +// +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape +// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape +// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later +// invert_mask | | cxxx c xx c| even_seq << 1 +// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit +// escaped | x | x x x x x x x x | +// desired | x | x x x x x x x x | +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// +simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { + // If there was overflow, pretend the first character isn't a backslash + backslash &= ~prev_escaped; + uint64_t follows_escape = backslash << 1 | prev_escaped; + + // Get sequences starting on even bits by clearing out the odd series using + + const uint64_t even_bits = 0x5555555555555555ULL; + uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; + uint64_t sequences_starting_on_even_bits; + prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); + uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. + + // Mask every other backslashed character as an escaped character + // Flip the mask for sequences that start on even bits, to correct them + return (even_bits ^ invert_mask) & follows_escape; +} + +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = find_escaped(backslash); + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + // right shift of a signed value expected to be well-defined and standard + // compliant as of C++20, John Regher from Utah U. says this is fine code + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block( + backslash, + escaped, + quote, + in_string + ); +} + +simdjson_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage1/json_string_scanner.h */ +/* begin file src/generic/stage1/json_scanner.h */ +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { + +/** + * A block of scanned json, with information on operators and scalars. + * + * We seek to identify pseudo-structural characters. Anything that is inside + * a string must be omitted (hence & ~_string.string_tail()). + * Otherwise, pseudo-structural characters come in two forms. + * 1. We have the structural characters ([,],{,},:, comma). The + * term 'structural character' is from the JSON RFC. + * 2. We have the 'scalar pseudo-structural characters'. + * Scalars are quotes, and any character except structural characters and white space. + * + * To identify the scalar pseudo-structural characters, we must look at what comes + * before them: it must be a space, a quote or a structural characters. + * Starting with simdjson v0.3, we identify them by + * negation: we identify everything that is followed by a non-quote scalar, + * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. + */ +struct json_block { +public: + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + + /** + * The start of structurals. + * In simdjson prior to v0.3, these were called the pseudo-structural characters. + **/ + simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } + /** All JSON whitespace (i.e. not in a string) */ + simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } + + // Helpers + + /** Whether the given characters are inside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } + /** Whether the given characters are outside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } + + // string and escape characters + json_string_block _string; + // whitespace, structural characters ('operators'), scalars + json_character_block _characters; + // whether the previous character was a scalar + uint64_t _follows_potential_nonquote_scalar; +private: + // Potential structurals (i.e. disregarding strings) + + /** + * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". + * They may reside inside a string. + **/ + simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } + /** + * The start of non-operator runs, like 123, true and "abc". + * It main reside inside a string. + **/ + simdjson_inline uint64_t potential_scalar_start() const noexcept { + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space + // then we know that it is irrelevant structurally. + return _characters.scalar() & ~follows_potential_scalar(); + } + /** + * Whether the given character is immediately after a non-operator like 123, true. + * The characters following a quote are not included. + */ + simdjson_inline uint64_t follows_potential_scalar() const noexcept { + // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character + // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a + // white space. + // It is understood that within quoted region, anything at all could be marked (irrelevant). + return _follows_potential_nonquote_scalar; + } +}; + +/** + * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. + * + * The scanner starts by calculating two distinct things: + * - string characters (taking \" into account) + * - structural characters or 'operators' ([]{},:, comma) + * and scalars (runs of non-operators like 123, true and "abc") + * + * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: + * in particular, the operator/scalar bit will find plenty of things that are actually part of + * strings. When we're done, json_block will fuse the two together by masking out tokens that are + * part of a string. + */ +class json_scanner { +public: + json_scanner() = default; + simdjson_inline json_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Whether the last character of the previous iteration is part of a scalar token + // (anything except whitespace or a structural character/'operator'). + uint64_t prev_scalar = 0ULL; + json_string_scanner string_scanner{}; +}; + + +// +// Check if the current character immediately follows a matching character. +// +// For example, this checks for quotes with backslashes in front of them: +// +// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); +// +simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { + const uint64_t result = match << 1 | overflow; + overflow = match >> 63; + return result; +} + +simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { + json_string_block strings = string_scanner.next(in); + // identifies the white-space and the structural characters + json_character_block characters = json_character_block::classify(in); + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // + // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) + // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential + // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we + // may need to add an extra check when parsing strings. + // + // Performance: there are many ways to skin this cat. + const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); + uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); +} + +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage1/json_scanner.h */ +/* begin file src/generic/stage1/json_minifier.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage1/json_minifier.h */ +/* begin file src/generic/stage1/find_next_document_index.h */ +namespace simdjson { +namespace icelake { +namespace { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage1/find_next_document_index.h */ + +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { + +class bit_indexer { +public: + uint32_t *tail; + + simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} + + // flatten out values in 'bits' assuming that they are are to have values of idx + // plus their position in the bitvector, and store these indexes at + // base_ptr[base] incrementing base as we go + // will potentially store extra values beyond end of valid bits, so base_ptr + // needs to be large enough to handle this + // + // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own + // version of the code. +#ifdef SIMDJSON_CUSTOM_BIT_INDEXER + simdjson_inline void write(uint32_t idx, uint64_t bits); +#else + simdjson_inline void write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) + return; +#if SIMDJSON_PREFER_REVERSE_BITS + /** + * ARM lacks a fast trailing zero instruction, but it has a fast + * bit reversal instruction and a fast leading zero instruction. + * Thus it may be profitable to reverse the bits (once) and then + * to rely on a sequence of instructions that call the leading + * zero instruction. + * + * Performance notes: + * The chosen routine is not optimal in terms of data dependency + * since zero_leading_bit might require two instructions. However, + * it tends to minimize the total number of instructions which is + * beneficial. + */ + + uint64_t rev_bits = reverse_bits(bits); + int cnt = static_cast(count_ones(bits)); + int i = 0; + // Do the first 8 all together + for (; i<8; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + i = 8; + for (; i<16; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + i = 16; + while (rev_bits != 0) { + int lz = leading_zeroes(rev_bits); + this->tail[i++] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + } + } + this->tail += cnt; +#else // SIMDJSON_PREFER_REVERSE_BITS + /** + * Under recent x64 systems, we often have both a fast trailing zero + * instruction and a fast 'clear-lower-bit' instruction so the following + * algorithm can be competitive. + */ + + int cnt = static_cast(count_ones(bits)); + // Do the first 8 all together + for (int i=0; i<8; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + for (int i=8; i<16; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + int i = 16; + do { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + i++; + } while (i < cnt); + } + } + + this->tail += cnt; +#endif + } +#endif // SIMDJSON_CUSTOM_BIT_INDEXER + +}; + +class json_structural_indexer { +public: + /** + * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. + * + * @param partial Setting the partial parameter to true allows the find_structural_bits to + * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If + * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. + */ + template + static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; + +private: + simdjson_inline json_structural_indexer(uint32_t *structural_indexes); + template + simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); + simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); + + json_scanner scanner{}; + utf8_checker checker{}; + bit_indexer indexer; + uint64_t prev_structurals = 0; + uint64_t unescaped_chars_error = 0; +}; + +simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} + +// Skip the last character if it is partial +simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { + if (simdjson_unlikely(len < 3)) { + switch (len) { + case 2: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left + return len; + case 1: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + return len; + case 0: + return len; + } + } + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left + if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left + return len; +} + +// +// PERF NOTES: +// We pipe 2 inputs through these stages: +// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load +// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. +// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. +// The output of step 1 depends entirely on this information. These functions don't quite use +// up enough CPU: the second half of the functions is highly serial, only using 1 execution core +// at a time. The second input's scans has some dependency on the first ones finishing it, but +// they can make a lot of progress before they need that information. +// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that +// to finish: utf-8 checks and generating the output from the last iteration. +// +// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all +// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough +// workout. +// +template +error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { + if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } + // We guard the rest of the code so that we can assume that len > 0 throughout. + if (len == 0) { return EMPTY; } + if (is_streaming(partial)) { + len = trim_partial_utf8(buf, len); + // If you end up with an empty window after trimming + // the partial UTF-8 bytes, then chances are good that you + // have an UTF-8 formatting error. + if(len == 0) { return UTF8_ERROR; } + } + buf_block_reader reader(buf, len); + json_structural_indexer indexer(parser.structural_indexes.get()); + + // Read all but the last block + while (reader.has_full_block()) { + indexer.step(reader.full_block(), reader); + } + // Take care of the last block (will always be there unless file is empty which is + // not supposed to happen.) + uint8_t block[STEP_SIZE]; + if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } + indexer.step(block, reader); + return indexer.finish(parser, reader.block_index(), len, partial); +} + +template<> +simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block); + simd::simd8x64 in_2(block+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1, reader.block_index()); + this->next(in_2, block_2, reader.block_index()+64); + reader.advance(); +} + +template<> +simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block); + json_block block_1 = scanner.next(in_1); + this->next(in_1, block_1, reader.block_index()); + reader.advance(); +} + +simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { + uint64_t unescaped = in.lteq(0x1F); +#if SIMDJSON_UTF8VALIDATION + checker.check_next_input(in); +#endif + indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser + prev_structurals = block.structural_start(); + unescaped_chars_error |= block.non_quote_inside_string(unescaped); +} + +simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { + // Write out the final iteration's structurals + indexer.write(uint32_t(idx-64), prev_structurals); + error_code error = scanner.finish(); + // We deliberately break down the next expression so that it is + // human readable. + const bool should_we_exit = is_streaming(partial) ? + ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING + : (error != SUCCESS); // if partial is false, we must have SUCCESS + const bool have_unclosed_string = (error == UNCLOSED_STRING); + if (simdjson_unlikely(should_we_exit)) { return error; } + + if (unescaped_chars_error) { + return UNESCAPED_CHARS; + } + parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); + /*** + * The On Demand API requires special padding. + * + * This is related to https://github.com/simdjson/simdjson/issues/906 + * Basically, we want to make sure that if the parsing continues beyond the last (valid) + * structural character, it quickly stops. + * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. + * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing + * continues, then it must be [,] or }. + * Suppose it is ] or }. We backtrack to the first character, what could it be that would + * not trigger an error? It could be ] or } but no, because you can't start a document that way. + * It can't be a comma, a colon or any simple value. So the only way we could continue is + * if the repeated character is [. But if so, the document must start with [. But if the document + * starts with [, it should end with ]. If we enforce that rule, then we would get + * ][[ which is invalid. + * + * This is illustrated with the test array_iterate_unclosed_error() on the following input: + * R"({ "a": [,,)" + **/ + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final + parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); + parser.structural_indexes[parser.n_structural_indexes + 2] = 0; + parser.next_structural_index = 0; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + return EMPTY; + } + if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { + return UNEXPECTED_ERROR; + } + if (partial == stage1_mode::streaming_partial) { + // If we have an unclosed string, then the last structural + // will be the quote and we want to make sure to omit it. + if(have_unclosed_string) { + parser.n_structural_indexes--; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } + } + // We truncate the input to the end of the last complete document (or zero). + auto new_structural_indexes = find_next_document_index(parser); + if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + + parser.n_structural_indexes = new_structural_indexes; + } else if (partial == stage1_mode::streaming_final) { + if(have_unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + // We tolerate an unclosed string at the very end of the stream. Indeed, users + // often load their data in bulk without being careful and they want us to ignore + // the trailing garbage. + return EMPTY; + } + } + checker.check_eof(); + return checker.errors(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage1/json_structural_indexer.h */ +// We must not forget to undefine it now: +#undef SIMDJSON_CUSTOM_BIT_INDEXER + +/** + * We provide a custom version of bit_indexer::write using + * naked intrinsics. + * TODO: make this code more elegant. + */ +// Under GCC 12, the intrinsic _mm512_extracti32x4_epi32 may generate 'maybe uninitialized'. +// as a workaround, we disable warnings within the following function. +SIMDJSON_PUSH_DISABLE_ALL_WARNINGS +namespace simdjson { namespace icelake { namespace { namespace stage1 { +simdjson_inline void bit_indexer::write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) { return; } + + const __m512i indexes = _mm512_maskz_compress_epi8(bits, _mm512_set_epi32( + 0x3f3e3d3c, 0x3b3a3938, 0x37363534, 0x33323130, + 0x2f2e2d2c, 0x2b2a2928, 0x27262524, 0x23222120, + 0x1f1e1d1c, 0x1b1a1918, 0x17161514, 0x13121110, + 0x0f0e0d0c, 0x0b0a0908, 0x07060504, 0x03020100 + )); + const __m512i start_index = _mm512_set1_epi32(idx); + + const auto count = count_ones(bits); + __m512i t0 = _mm512_cvtepu8_epi32(_mm512_castsi512_si128(indexes)); + _mm512_storeu_si512(this->tail, _mm512_add_epi32(t0, start_index)); + + if(count > 16) { + const __m512i t1 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 1)); + _mm512_storeu_si512(this->tail + 16, _mm512_add_epi32(t1, start_index)); + if(count > 32) { + const __m512i t2 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 2)); + _mm512_storeu_si512(this->tail + 32, _mm512_add_epi32(t2, start_index)); + if(count > 48) { + const __m512i t3 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 3)); + _mm512_storeu_si512(this->tail + 48, _mm512_add_epi32(t3, start_index)); + } + } + } + this->tail += count; +} +}}}} +SIMDJSON_POP_DISABLE_WARNINGS + +/* begin file src/generic/stage1/utf8_validator.h */ +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { + +/** + * Validates that the string is actual UTF-8. + */ +template +bool generic_validate_utf8(const uint8_t * input, size_t length) { + checker c{}; + buf_block_reader<64> reader(input, length); + while (reader.has_full_block()) { + simd::simd8x64 in(reader.full_block()); + c.check_next_input(in); + reader.advance(); + } + uint8_t block[64]{}; + reader.get_remainder(block); + simd::simd8x64 in(block); + c.check_next_input(in); + reader.advance(); + c.check_eof(); + return c.errors() == error_code::SUCCESS; +} + +bool generic_validate_utf8(const char * input, size_t length) { + return generic_validate_utf8(reinterpret_cast(input),length); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage1/utf8_validator.h */ + +// +// Stage 2 +// +/* begin file src/generic/stage2/stringparsing.h */ +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace icelake { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage2/stringparsing.h */ +/* begin file src/generic/stage2/tape_builder.h */ +/* begin file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/logger.h */ +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace icelake { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/tape_writer.h */ +namespace simdjson { +namespace icelake { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct number_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage2/tape_writer.h */ + +namespace simdjson { +namespace icelake { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; + + simdjson_inline tape_builder(dom::document &doc) noexcept; + + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // class tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +// private: + +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} + +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; +} + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file src/generic/stage2/tape_builder.h */ + +// +// Implementation-specific overrides +// +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { + +simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { + if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } + return find_escaped_branchless(backslash); +} + +} // namespace stage1 +} // unnamed namespace + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return icelake::stage1::json_minifier::minify<128>(buf, len, dst, dst_len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return icelake::stage1::json_structural_indexer::index<128>(_buf, _len, *this, streaming); +} + +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return icelake::stage1::generic_validate_utf8(buf,len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return icelake::stringparsing::parse_string(src, dst, replacement_char); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return icelake::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace icelake +} // namespace simdjson + +/* begin file include/simdjson/icelake/end.h */ +SIMDJSON_UNTARGET_ICELAKE +/* end file include/simdjson/icelake/end.h */ +/* end file src/icelake/dom_parser_implementation.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_HASWELL +/* begin file src/haswell/implementation.cpp */ +/* begin file include/simdjson/haswell/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "haswell" +// #define SIMDJSON_IMPLEMENTATION haswell +SIMDJSON_TARGET_HASWELL +/* end file include/simdjson/haswell/begin.h */ + +namespace simdjson { +namespace haswell { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + +} // namespace haswell +} // namespace simdjson + +/* begin file include/simdjson/haswell/end.h */ +SIMDJSON_UNTARGET_HASWELL +/* end file include/simdjson/haswell/end.h */ + +/* end file src/haswell/implementation.cpp */ +/* begin file src/haswell/dom_parser_implementation.cpp */ +/* begin file include/simdjson/haswell/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "haswell" +// #define SIMDJSON_IMPLEMENTATION haswell +SIMDJSON_TARGET_HASWELL +/* end file include/simdjson/haswell/begin.h */ + +// +// Stage 1 +// + +namespace simdjson { +namespace haswell { +namespace { + +using namespace simd; + +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); + // ASCII white-space ('\r','\n','\t',' ') + simdjson_inline uint64_t whitespace() const noexcept; + // non-quote structural characters (comma, colon, braces, brackets) + simdjson_inline uint64_t op() const noexcept; + // neither a structural character nor a white-space, so letters, numbers and quotes + simdjson_inline uint64_t scalar() const noexcept; + + uint64_t _whitespace; // ASCII white-space ('\r','\n','\t',' ') + uint64_t _op; // structural characters (comma, colon, braces, brackets but not quotes) +}; + +simdjson_inline uint64_t json_character_block::whitespace() const noexcept { return _whitespace; } +simdjson_inline uint64_t json_character_block::op() const noexcept { return _op; } +simdjson_inline uint64_t json_character_block::scalar() const noexcept { return ~(op() | whitespace()); } + +// This identifies structural characters (comma, colon, braces, brackets), +// and ASCII white-space ('\r','\n','\t',' '). +simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { + // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why + // we can't use the generic lookup_16. + const auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); + + // The 6 operators (:,[]{}) have these values: + // + // , 2C + // : 3A + // [ 5B + // { 7B + // ] 5D + // } 7D + // + // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. + // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then + // match it (against | 0x20). + // + // To prevent recognizing other characters, everything else gets compared with 0, which cannot + // match due to the | 0x20. + // + // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , + // and :. This gets caught in stage 2, which checks the actual character to ensure the right + // operators are in the right places. + const auto op_table = simd8::repeat_16( + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B + ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D + ); + + // We compute whitespace and op separately. If later code only uses one or the + // other, given the fact that all functions are aggressively inlined, we can + // hope that useless computations will be omitted. This is namely case when + // minifying (we only need whitespace). + + const uint64_t whitespace = in.eq({ + _mm256_shuffle_epi8(whitespace_table, in.chunks[0]), + _mm256_shuffle_epi8(whitespace_table, in.chunks[1]) + }); + // Turn [ and ] into { and } + const simd8x64 curlified{ + in.chunks[0] | 0x20, + in.chunks[1] | 0x20 + }; + const uint64_t op = curlified.eq({ + _mm256_shuffle_epi8(op_table, in.chunks[0]), + _mm256_shuffle_epi8(op_table, in.chunks[1]) + }); + + return { whitespace, op }; +} + +simdjson_inline bool is_ascii(const simd8x64& input) { + return input.reduce_or().is_ascii(); +} + +simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { + simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); +} + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_third_byte | is_fourth_byte) > int8_t(0); +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +namespace simdjson { +namespace haswell { +namespace { +namespace utf8_validation { + +using namespace simd; + + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, + + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } + + // + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. + // + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } + + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; + + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); + } + + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; + } + +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation + +using utf8_validation::utf8_checker; + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ +/* begin file src/generic/stage1/json_structural_indexer.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +/* begin file src/generic/stage1/buf_block_reader.h */ +namespace simdjson { +namespace haswell { +namespace { + +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; + } + buf[64] = '\0'; + return buf; +} + +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } + +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; +} + +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; +} + +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; +} + +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage1/buf_block_reader.h */ +/* begin file src/generic/stage1/json_string_scanner.h */ +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : + _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} + + // Escaped characters (characters following an escape() character) + simdjson_inline uint64_t escaped() const { return _escaped; } + // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) + simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } + // Real (non-backslashed) quotes + simdjson_inline uint64_t quote() const { return _quote; } + // Start quotes of strings + simdjson_inline uint64_t string_start() const { return _quote & _in_string; } + // End quotes of strings + simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } + // Only characters inside the string (not including the quotes) + simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } + + // backslash characters + uint64_t _backslash; + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-backslashed ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; + +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Intended to be defined by the implementation + simdjson_inline uint64_t find_escaped(uint64_t escape); + simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); + + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; + // Whether the first character of the next iteration is escaped. + uint64_t prev_escaped = 0ULL; +}; + +// +// Finds escaped characters (characters following \). +// +// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). +// +// Does this by: +// - Shift the escape mask to get potentially escaped characters (characters after backslashes). +// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) +// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) +// +// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all +// escape sequences, filters out the ones that start on even bits, and adds that to the mask of +// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since +// the start bit causes a carry), and leaves even-bit sequences alone. +// +// Example: +// +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape +// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape +// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later +// invert_mask | | cxxx c xx c| even_seq << 1 +// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit +// escaped | x | x x x x x x x x | +// desired | x | x x x x x x x x | +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// +simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { + // If there was overflow, pretend the first character isn't a backslash + backslash &= ~prev_escaped; + uint64_t follows_escape = backslash << 1 | prev_escaped; + + // Get sequences starting on even bits by clearing out the odd series using + + const uint64_t even_bits = 0x5555555555555555ULL; + uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; + uint64_t sequences_starting_on_even_bits; + prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); + uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. + + // Mask every other backslashed character as an escaped character + // Flip the mask for sequences that start on even bits, to correct them + return (even_bits ^ invert_mask) & follows_escape; +} + +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = find_escaped(backslash); + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + // right shift of a signed value expected to be well-defined and standard + // compliant as of C++20, John Regher from Utah U. says this is fine code + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block( + backslash, + escaped, + quote, + in_string + ); +} + +simdjson_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage1/json_string_scanner.h */ +/* begin file src/generic/stage1/json_scanner.h */ +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +/** + * A block of scanned json, with information on operators and scalars. + * + * We seek to identify pseudo-structural characters. Anything that is inside + * a string must be omitted (hence & ~_string.string_tail()). + * Otherwise, pseudo-structural characters come in two forms. + * 1. We have the structural characters ([,],{,},:, comma). The + * term 'structural character' is from the JSON RFC. + * 2. We have the 'scalar pseudo-structural characters'. + * Scalars are quotes, and any character except structural characters and white space. + * + * To identify the scalar pseudo-structural characters, we must look at what comes + * before them: it must be a space, a quote or a structural characters. + * Starting with simdjson v0.3, we identify them by + * negation: we identify everything that is followed by a non-quote scalar, + * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. + */ +struct json_block { +public: + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + + /** + * The start of structurals. + * In simdjson prior to v0.3, these were called the pseudo-structural characters. + **/ + simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } + /** All JSON whitespace (i.e. not in a string) */ + simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } + + // Helpers + + /** Whether the given characters are inside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } + /** Whether the given characters are outside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } + + // string and escape characters + json_string_block _string; + // whitespace, structural characters ('operators'), scalars + json_character_block _characters; + // whether the previous character was a scalar + uint64_t _follows_potential_nonquote_scalar; +private: + // Potential structurals (i.e. disregarding strings) + + /** + * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". + * They may reside inside a string. + **/ + simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } + /** + * The start of non-operator runs, like 123, true and "abc". + * It main reside inside a string. + **/ + simdjson_inline uint64_t potential_scalar_start() const noexcept { + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space + // then we know that it is irrelevant structurally. + return _characters.scalar() & ~follows_potential_scalar(); + } + /** + * Whether the given character is immediately after a non-operator like 123, true. + * The characters following a quote are not included. + */ + simdjson_inline uint64_t follows_potential_scalar() const noexcept { + // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character + // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a + // white space. + // It is understood that within quoted region, anything at all could be marked (irrelevant). + return _follows_potential_nonquote_scalar; + } +}; + +/** + * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. + * + * The scanner starts by calculating two distinct things: + * - string characters (taking \" into account) + * - structural characters or 'operators' ([]{},:, comma) + * and scalars (runs of non-operators like 123, true and "abc") + * + * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: + * in particular, the operator/scalar bit will find plenty of things that are actually part of + * strings. When we're done, json_block will fuse the two together by masking out tokens that are + * part of a string. + */ +class json_scanner { +public: + json_scanner() = default; + simdjson_inline json_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Whether the last character of the previous iteration is part of a scalar token + // (anything except whitespace or a structural character/'operator'). + uint64_t prev_scalar = 0ULL; + json_string_scanner string_scanner{}; +}; + + +// +// Check if the current character immediately follows a matching character. +// +// For example, this checks for quotes with backslashes in front of them: +// +// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); +// +simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { + const uint64_t result = match << 1 | overflow; + overflow = match >> 63; + return result; +} + +simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { + json_string_block strings = string_scanner.next(in); + // identifies the white-space and the structural characters + json_character_block characters = json_character_block::classify(in); + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // + // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) + // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential + // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we + // may need to add an extra check when parsing strings. + // + // Performance: there are many ways to skin this cat. + const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); + uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); +} + +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage1/json_scanner.h */ +/* begin file src/generic/stage1/json_minifier.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage1/json_minifier.h */ +/* begin file src/generic/stage1/find_next_document_index.h */ +namespace simdjson { +namespace haswell { +namespace { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage1/find_next_document_index.h */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +class bit_indexer { +public: + uint32_t *tail; + + simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} + + // flatten out values in 'bits' assuming that they are are to have values of idx + // plus their position in the bitvector, and store these indexes at + // base_ptr[base] incrementing base as we go + // will potentially store extra values beyond end of valid bits, so base_ptr + // needs to be large enough to handle this + // + // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own + // version of the code. +#ifdef SIMDJSON_CUSTOM_BIT_INDEXER + simdjson_inline void write(uint32_t idx, uint64_t bits); +#else + simdjson_inline void write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) + return; +#if SIMDJSON_PREFER_REVERSE_BITS + /** + * ARM lacks a fast trailing zero instruction, but it has a fast + * bit reversal instruction and a fast leading zero instruction. + * Thus it may be profitable to reverse the bits (once) and then + * to rely on a sequence of instructions that call the leading + * zero instruction. + * + * Performance notes: + * The chosen routine is not optimal in terms of data dependency + * since zero_leading_bit might require two instructions. However, + * it tends to minimize the total number of instructions which is + * beneficial. + */ + + uint64_t rev_bits = reverse_bits(bits); + int cnt = static_cast(count_ones(bits)); + int i = 0; + // Do the first 8 all together + for (; i<8; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + i = 8; + for (; i<16; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + i = 16; + while (rev_bits != 0) { + int lz = leading_zeroes(rev_bits); + this->tail[i++] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + } + } + this->tail += cnt; +#else // SIMDJSON_PREFER_REVERSE_BITS + /** + * Under recent x64 systems, we often have both a fast trailing zero + * instruction and a fast 'clear-lower-bit' instruction so the following + * algorithm can be competitive. + */ + + int cnt = static_cast(count_ones(bits)); + // Do the first 8 all together + for (int i=0; i<8; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + for (int i=8; i<16; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + int i = 16; + do { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + i++; + } while (i < cnt); + } + } + + this->tail += cnt; +#endif + } +#endif // SIMDJSON_CUSTOM_BIT_INDEXER + +}; + +class json_structural_indexer { +public: + /** + * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. + * + * @param partial Setting the partial parameter to true allows the find_structural_bits to + * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If + * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. + */ + template + static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; + +private: + simdjson_inline json_structural_indexer(uint32_t *structural_indexes); + template + simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); + simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); + + json_scanner scanner{}; + utf8_checker checker{}; + bit_indexer indexer; + uint64_t prev_structurals = 0; + uint64_t unescaped_chars_error = 0; +}; + +simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} + +// Skip the last character if it is partial +simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { + if (simdjson_unlikely(len < 3)) { + switch (len) { + case 2: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left + return len; + case 1: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + return len; + case 0: + return len; + } + } + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left + if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left + return len; +} + +// +// PERF NOTES: +// We pipe 2 inputs through these stages: +// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load +// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. +// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. +// The output of step 1 depends entirely on this information. These functions don't quite use +// up enough CPU: the second half of the functions is highly serial, only using 1 execution core +// at a time. The second input's scans has some dependency on the first ones finishing it, but +// they can make a lot of progress before they need that information. +// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that +// to finish: utf-8 checks and generating the output from the last iteration. +// +// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all +// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough +// workout. +// +template +error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { + if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } + // We guard the rest of the code so that we can assume that len > 0 throughout. + if (len == 0) { return EMPTY; } + if (is_streaming(partial)) { + len = trim_partial_utf8(buf, len); + // If you end up with an empty window after trimming + // the partial UTF-8 bytes, then chances are good that you + // have an UTF-8 formatting error. + if(len == 0) { return UTF8_ERROR; } + } + buf_block_reader reader(buf, len); + json_structural_indexer indexer(parser.structural_indexes.get()); + + // Read all but the last block + while (reader.has_full_block()) { + indexer.step(reader.full_block(), reader); + } + // Take care of the last block (will always be there unless file is empty which is + // not supposed to happen.) + uint8_t block[STEP_SIZE]; + if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } + indexer.step(block, reader); + return indexer.finish(parser, reader.block_index(), len, partial); +} + +template<> +simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block); + simd::simd8x64 in_2(block+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1, reader.block_index()); + this->next(in_2, block_2, reader.block_index()+64); + reader.advance(); +} + +template<> +simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block); + json_block block_1 = scanner.next(in_1); + this->next(in_1, block_1, reader.block_index()); + reader.advance(); +} + +simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { + uint64_t unescaped = in.lteq(0x1F); +#if SIMDJSON_UTF8VALIDATION + checker.check_next_input(in); +#endif + indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser + prev_structurals = block.structural_start(); + unescaped_chars_error |= block.non_quote_inside_string(unescaped); +} + +simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { + // Write out the final iteration's structurals + indexer.write(uint32_t(idx-64), prev_structurals); + error_code error = scanner.finish(); + // We deliberately break down the next expression so that it is + // human readable. + const bool should_we_exit = is_streaming(partial) ? + ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING + : (error != SUCCESS); // if partial is false, we must have SUCCESS + const bool have_unclosed_string = (error == UNCLOSED_STRING); + if (simdjson_unlikely(should_we_exit)) { return error; } + + if (unescaped_chars_error) { + return UNESCAPED_CHARS; + } + parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); + /*** + * The On Demand API requires special padding. + * + * This is related to https://github.com/simdjson/simdjson/issues/906 + * Basically, we want to make sure that if the parsing continues beyond the last (valid) + * structural character, it quickly stops. + * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. + * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing + * continues, then it must be [,] or }. + * Suppose it is ] or }. We backtrack to the first character, what could it be that would + * not trigger an error? It could be ] or } but no, because you can't start a document that way. + * It can't be a comma, a colon or any simple value. So the only way we could continue is + * if the repeated character is [. But if so, the document must start with [. But if the document + * starts with [, it should end with ]. If we enforce that rule, then we would get + * ][[ which is invalid. + * + * This is illustrated with the test array_iterate_unclosed_error() on the following input: + * R"({ "a": [,,)" + **/ + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final + parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); + parser.structural_indexes[parser.n_structural_indexes + 2] = 0; + parser.next_structural_index = 0; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + return EMPTY; + } + if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { + return UNEXPECTED_ERROR; + } + if (partial == stage1_mode::streaming_partial) { + // If we have an unclosed string, then the last structural + // will be the quote and we want to make sure to omit it. + if(have_unclosed_string) { + parser.n_structural_indexes--; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } + } + // We truncate the input to the end of the last complete document (or zero). + auto new_structural_indexes = find_next_document_index(parser); + if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + + parser.n_structural_indexes = new_structural_indexes; + } else if (partial == stage1_mode::streaming_final) { + if(have_unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + // We tolerate an unclosed string at the very end of the stream. Indeed, users + // often load their data in bulk without being careful and they want us to ignore + // the trailing garbage. + return EMPTY; + } + } + checker.check_eof(); + return checker.errors(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage1/json_structural_indexer.h */ +/* begin file src/generic/stage1/utf8_validator.h */ +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +/** + * Validates that the string is actual UTF-8. + */ +template +bool generic_validate_utf8(const uint8_t * input, size_t length) { + checker c{}; + buf_block_reader<64> reader(input, length); + while (reader.has_full_block()) { + simd::simd8x64 in(reader.full_block()); + c.check_next_input(in); + reader.advance(); + } + uint8_t block[64]{}; + reader.get_remainder(block); + simd::simd8x64 in(block); + c.check_next_input(in); + reader.advance(); + c.check_eof(); + return c.errors() == error_code::SUCCESS; +} + +bool generic_validate_utf8(const char * input, size_t length) { + return generic_validate_utf8(reinterpret_cast(input),length); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage1/utf8_validator.h */ + +// +// Stage 2 +// +/* begin file src/generic/stage2/stringparsing.h */ +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace haswell { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage2/stringparsing.h */ +/* begin file src/generic/stage2/tape_builder.h */ +/* begin file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/logger.h */ +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace haswell { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/tape_writer.h */ +namespace simdjson { +namespace haswell { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct number_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage2/tape_writer.h */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; + + simdjson_inline tape_builder(dom::document &doc) noexcept; + + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // class tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +// private: + +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} + +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; +} + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file src/generic/stage2/tape_builder.h */ + +// +// Implementation-specific overrides +// +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { + if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } + return find_escaped_branchless(backslash); +} + +} // namespace stage1 +} // unnamed namespace + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return haswell::stage1::json_minifier::minify<128>(buf, len, dst, dst_len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return haswell::stage1::json_structural_indexer::index<128>(_buf, _len, *this, streaming); +} + +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return haswell::stage1::generic_validate_utf8(buf,len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return haswell::stringparsing::parse_string(src, dst, replacement_char); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return haswell::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace haswell +} // namespace simdjson + +/* begin file include/simdjson/haswell/end.h */ +SIMDJSON_UNTARGET_HASWELL +/* end file include/simdjson/haswell/end.h */ +/* end file src/haswell/dom_parser_implementation.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_PPC64 +/* begin file src/ppc64/implementation.cpp */ +/* begin file include/simdjson/ppc64/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "ppc64" +// #define SIMDJSON_IMPLEMENTATION ppc64 +/* end file include/simdjson/ppc64/begin.h */ + +namespace simdjson { +namespace ppc64 { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + +} // namespace ppc64 +} // namespace simdjson + +/* begin file include/simdjson/ppc64/end.h */ +/* end file include/simdjson/ppc64/end.h */ +/* end file src/ppc64/implementation.cpp */ +/* begin file src/ppc64/dom_parser_implementation.cpp */ +/* begin file include/simdjson/ppc64/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "ppc64" +// #define SIMDJSON_IMPLEMENTATION ppc64 +/* end file include/simdjson/ppc64/begin.h */ + +// +// Stage 1 +// +namespace simdjson { +namespace ppc64 { +namespace { + +using namespace simd; + +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); + + simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } + simdjson_inline uint64_t op() const noexcept { return _op; } + simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } + + uint64_t _whitespace; + uint64_t _op; +}; + +simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { + const simd8 table1(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0); + const simd8 table2(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0); + + simd8x64 v( + (in.chunks[0] & 0xf).lookup_16(table1) & (in.chunks[0].shr<4>()).lookup_16(table2), + (in.chunks[1] & 0xf).lookup_16(table1) & (in.chunks[1].shr<4>()).lookup_16(table2), + (in.chunks[2] & 0xf).lookup_16(table1) & (in.chunks[2].shr<4>()).lookup_16(table2), + (in.chunks[3] & 0xf).lookup_16(table1) & (in.chunks[3].shr<4>()).lookup_16(table2) + ); + + uint64_t op = simd8x64( + v.chunks[0].any_bits_set(0x7), + v.chunks[1].any_bits_set(0x7), + v.chunks[2].any_bits_set(0x7), + v.chunks[3].any_bits_set(0x7) + ).to_bitmask(); + + uint64_t whitespace = simd8x64( + v.chunks[0].any_bits_set(0x18), + v.chunks[1].any_bits_set(0x18), + v.chunks[2].any_bits_set(0x18), + v.chunks[3].any_bits_set(0x18) + ).to_bitmask(); + + return { whitespace, op }; +} + +simdjson_inline bool is_ascii(const simd8x64& input) { + // careful: 0x80 is not ascii. + return input.reduce_or().saturating_sub(0x7fu).bits_not_set_anywhere(); +} + +simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { + simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); +} + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_third_byte | is_fourth_byte) > int8_t(0); +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +namespace simdjson { +namespace ppc64 { +namespace { +namespace utf8_validation { + +using namespace simd; + + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, + + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } + + // + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. + // + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } + + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; + + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); + } + + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; + } + +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation + +using utf8_validation::utf8_checker; + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ +/* begin file src/generic/stage1/json_structural_indexer.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +/* begin file src/generic/stage1/buf_block_reader.h */ +namespace simdjson { +namespace ppc64 { +namespace { + +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; + } + buf[64] = '\0'; + return buf; +} + +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } + +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; +} + +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; +} + +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; +} + +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage1/buf_block_reader.h */ +/* begin file src/generic/stage1/json_string_scanner.h */ +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage1 { + +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : + _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} + + // Escaped characters (characters following an escape() character) + simdjson_inline uint64_t escaped() const { return _escaped; } + // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) + simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } + // Real (non-backslashed) quotes + simdjson_inline uint64_t quote() const { return _quote; } + // Start quotes of strings + simdjson_inline uint64_t string_start() const { return _quote & _in_string; } + // End quotes of strings + simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } + // Only characters inside the string (not including the quotes) + simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } + + // backslash characters + uint64_t _backslash; + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-backslashed ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; + +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Intended to be defined by the implementation + simdjson_inline uint64_t find_escaped(uint64_t escape); + simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); + + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; + // Whether the first character of the next iteration is escaped. + uint64_t prev_escaped = 0ULL; +}; + +// +// Finds escaped characters (characters following \). +// +// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). +// +// Does this by: +// - Shift the escape mask to get potentially escaped characters (characters after backslashes). +// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) +// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) +// +// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all +// escape sequences, filters out the ones that start on even bits, and adds that to the mask of +// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since +// the start bit causes a carry), and leaves even-bit sequences alone. +// +// Example: +// +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape +// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape +// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later +// invert_mask | | cxxx c xx c| even_seq << 1 +// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit +// escaped | x | x x x x x x x x | +// desired | x | x x x x x x x x | +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// +simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { + // If there was overflow, pretend the first character isn't a backslash + backslash &= ~prev_escaped; + uint64_t follows_escape = backslash << 1 | prev_escaped; + + // Get sequences starting on even bits by clearing out the odd series using + + const uint64_t even_bits = 0x5555555555555555ULL; + uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; + uint64_t sequences_starting_on_even_bits; + prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); + uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. + + // Mask every other backslashed character as an escaped character + // Flip the mask for sequences that start on even bits, to correct them + return (even_bits ^ invert_mask) & follows_escape; +} + +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = find_escaped(backslash); + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + // right shift of a signed value expected to be well-defined and standard + // compliant as of C++20, John Regher from Utah U. says this is fine code + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block( + backslash, + escaped, + quote, + in_string + ); +} + +simdjson_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage1/json_string_scanner.h */ +/* begin file src/generic/stage1/json_scanner.h */ +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage1 { + +/** + * A block of scanned json, with information on operators and scalars. + * + * We seek to identify pseudo-structural characters. Anything that is inside + * a string must be omitted (hence & ~_string.string_tail()). + * Otherwise, pseudo-structural characters come in two forms. + * 1. We have the structural characters ([,],{,},:, comma). The + * term 'structural character' is from the JSON RFC. + * 2. We have the 'scalar pseudo-structural characters'. + * Scalars are quotes, and any character except structural characters and white space. + * + * To identify the scalar pseudo-structural characters, we must look at what comes + * before them: it must be a space, a quote or a structural characters. + * Starting with simdjson v0.3, we identify them by + * negation: we identify everything that is followed by a non-quote scalar, + * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. + */ +struct json_block { +public: + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + + /** + * The start of structurals. + * In simdjson prior to v0.3, these were called the pseudo-structural characters. + **/ + simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } + /** All JSON whitespace (i.e. not in a string) */ + simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } + + // Helpers + + /** Whether the given characters are inside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } + /** Whether the given characters are outside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } + + // string and escape characters + json_string_block _string; + // whitespace, structural characters ('operators'), scalars + json_character_block _characters; + // whether the previous character was a scalar + uint64_t _follows_potential_nonquote_scalar; +private: + // Potential structurals (i.e. disregarding strings) + + /** + * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". + * They may reside inside a string. + **/ + simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } + /** + * The start of non-operator runs, like 123, true and "abc". + * It main reside inside a string. + **/ + simdjson_inline uint64_t potential_scalar_start() const noexcept { + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space + // then we know that it is irrelevant structurally. + return _characters.scalar() & ~follows_potential_scalar(); + } + /** + * Whether the given character is immediately after a non-operator like 123, true. + * The characters following a quote are not included. + */ + simdjson_inline uint64_t follows_potential_scalar() const noexcept { + // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character + // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a + // white space. + // It is understood that within quoted region, anything at all could be marked (irrelevant). + return _follows_potential_nonquote_scalar; + } +}; + +/** + * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. + * + * The scanner starts by calculating two distinct things: + * - string characters (taking \" into account) + * - structural characters or 'operators' ([]{},:, comma) + * and scalars (runs of non-operators like 123, true and "abc") + * + * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: + * in particular, the operator/scalar bit will find plenty of things that are actually part of + * strings. When we're done, json_block will fuse the two together by masking out tokens that are + * part of a string. + */ +class json_scanner { +public: + json_scanner() = default; + simdjson_inline json_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Whether the last character of the previous iteration is part of a scalar token + // (anything except whitespace or a structural character/'operator'). + uint64_t prev_scalar = 0ULL; + json_string_scanner string_scanner{}; +}; + + +// +// Check if the current character immediately follows a matching character. +// +// For example, this checks for quotes with backslashes in front of them: +// +// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); +// +simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { + const uint64_t result = match << 1 | overflow; + overflow = match >> 63; + return result; +} + +simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { + json_string_block strings = string_scanner.next(in); + // identifies the white-space and the structural characters + json_character_block characters = json_character_block::classify(in); + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // + // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) + // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential + // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we + // may need to add an extra check when parsing strings. + // + // Performance: there are many ways to skin this cat. + const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); + uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); +} + +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage1/json_scanner.h */ +/* begin file src/generic/stage1/json_minifier.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage1/json_minifier.h */ +/* begin file src/generic/stage1/find_next_document_index.h */ +namespace simdjson { +namespace ppc64 { +namespace { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage1/find_next_document_index.h */ + +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage1 { + +class bit_indexer { +public: + uint32_t *tail; + + simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} + + // flatten out values in 'bits' assuming that they are are to have values of idx + // plus their position in the bitvector, and store these indexes at + // base_ptr[base] incrementing base as we go + // will potentially store extra values beyond end of valid bits, so base_ptr + // needs to be large enough to handle this + // + // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own + // version of the code. +#ifdef SIMDJSON_CUSTOM_BIT_INDEXER + simdjson_inline void write(uint32_t idx, uint64_t bits); +#else + simdjson_inline void write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) + return; +#if SIMDJSON_PREFER_REVERSE_BITS + /** + * ARM lacks a fast trailing zero instruction, but it has a fast + * bit reversal instruction and a fast leading zero instruction. + * Thus it may be profitable to reverse the bits (once) and then + * to rely on a sequence of instructions that call the leading + * zero instruction. + * + * Performance notes: + * The chosen routine is not optimal in terms of data dependency + * since zero_leading_bit might require two instructions. However, + * it tends to minimize the total number of instructions which is + * beneficial. + */ + + uint64_t rev_bits = reverse_bits(bits); + int cnt = static_cast(count_ones(bits)); + int i = 0; + // Do the first 8 all together + for (; i<8; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + i = 8; + for (; i<16; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + i = 16; + while (rev_bits != 0) { + int lz = leading_zeroes(rev_bits); + this->tail[i++] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + } + } + this->tail += cnt; +#else // SIMDJSON_PREFER_REVERSE_BITS + /** + * Under recent x64 systems, we often have both a fast trailing zero + * instruction and a fast 'clear-lower-bit' instruction so the following + * algorithm can be competitive. + */ + + int cnt = static_cast(count_ones(bits)); + // Do the first 8 all together + for (int i=0; i<8; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + for (int i=8; i<16; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + int i = 16; + do { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + i++; + } while (i < cnt); + } + } + + this->tail += cnt; +#endif + } +#endif // SIMDJSON_CUSTOM_BIT_INDEXER + +}; + +class json_structural_indexer { +public: + /** + * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. + * + * @param partial Setting the partial parameter to true allows the find_structural_bits to + * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If + * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. + */ + template + static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; + +private: + simdjson_inline json_structural_indexer(uint32_t *structural_indexes); + template + simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); + simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); + + json_scanner scanner{}; + utf8_checker checker{}; + bit_indexer indexer; + uint64_t prev_structurals = 0; + uint64_t unescaped_chars_error = 0; +}; + +simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} + +// Skip the last character if it is partial +simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { + if (simdjson_unlikely(len < 3)) { + switch (len) { + case 2: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left + return len; + case 1: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + return len; + case 0: + return len; + } + } + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left + if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left + return len; +} + +// +// PERF NOTES: +// We pipe 2 inputs through these stages: +// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load +// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. +// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. +// The output of step 1 depends entirely on this information. These functions don't quite use +// up enough CPU: the second half of the functions is highly serial, only using 1 execution core +// at a time. The second input's scans has some dependency on the first ones finishing it, but +// they can make a lot of progress before they need that information. +// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that +// to finish: utf-8 checks and generating the output from the last iteration. +// +// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all +// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough +// workout. +// +template +error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { + if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } + // We guard the rest of the code so that we can assume that len > 0 throughout. + if (len == 0) { return EMPTY; } + if (is_streaming(partial)) { + len = trim_partial_utf8(buf, len); + // If you end up with an empty window after trimming + // the partial UTF-8 bytes, then chances are good that you + // have an UTF-8 formatting error. + if(len == 0) { return UTF8_ERROR; } + } + buf_block_reader reader(buf, len); + json_structural_indexer indexer(parser.structural_indexes.get()); + + // Read all but the last block + while (reader.has_full_block()) { + indexer.step(reader.full_block(), reader); + } + // Take care of the last block (will always be there unless file is empty which is + // not supposed to happen.) + uint8_t block[STEP_SIZE]; + if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } + indexer.step(block, reader); + return indexer.finish(parser, reader.block_index(), len, partial); +} + +template<> +simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block); + simd::simd8x64 in_2(block+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1, reader.block_index()); + this->next(in_2, block_2, reader.block_index()+64); + reader.advance(); +} + +template<> +simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block); + json_block block_1 = scanner.next(in_1); + this->next(in_1, block_1, reader.block_index()); + reader.advance(); +} + +simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { + uint64_t unescaped = in.lteq(0x1F); +#if SIMDJSON_UTF8VALIDATION + checker.check_next_input(in); +#endif + indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser + prev_structurals = block.structural_start(); + unescaped_chars_error |= block.non_quote_inside_string(unescaped); +} + +simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { + // Write out the final iteration's structurals + indexer.write(uint32_t(idx-64), prev_structurals); + error_code error = scanner.finish(); + // We deliberately break down the next expression so that it is + // human readable. + const bool should_we_exit = is_streaming(partial) ? + ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING + : (error != SUCCESS); // if partial is false, we must have SUCCESS + const bool have_unclosed_string = (error == UNCLOSED_STRING); + if (simdjson_unlikely(should_we_exit)) { return error; } + + if (unescaped_chars_error) { + return UNESCAPED_CHARS; + } + parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); + /*** + * The On Demand API requires special padding. + * + * This is related to https://github.com/simdjson/simdjson/issues/906 + * Basically, we want to make sure that if the parsing continues beyond the last (valid) + * structural character, it quickly stops. + * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. + * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing + * continues, then it must be [,] or }. + * Suppose it is ] or }. We backtrack to the first character, what could it be that would + * not trigger an error? It could be ] or } but no, because you can't start a document that way. + * It can't be a comma, a colon or any simple value. So the only way we could continue is + * if the repeated character is [. But if so, the document must start with [. But if the document + * starts with [, it should end with ]. If we enforce that rule, then we would get + * ][[ which is invalid. + * + * This is illustrated with the test array_iterate_unclosed_error() on the following input: + * R"({ "a": [,,)" + **/ + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final + parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); + parser.structural_indexes[parser.n_structural_indexes + 2] = 0; + parser.next_structural_index = 0; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + return EMPTY; + } + if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { + return UNEXPECTED_ERROR; + } + if (partial == stage1_mode::streaming_partial) { + // If we have an unclosed string, then the last structural + // will be the quote and we want to make sure to omit it. + if(have_unclosed_string) { + parser.n_structural_indexes--; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } + } + // We truncate the input to the end of the last complete document (or zero). + auto new_structural_indexes = find_next_document_index(parser); + if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + + parser.n_structural_indexes = new_structural_indexes; + } else if (partial == stage1_mode::streaming_final) { + if(have_unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + // We tolerate an unclosed string at the very end of the stream. Indeed, users + // often load their data in bulk without being careful and they want us to ignore + // the trailing garbage. + return EMPTY; + } + } + checker.check_eof(); + return checker.errors(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage1/json_structural_indexer.h */ +/* begin file src/generic/stage1/utf8_validator.h */ +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage1 { + +/** + * Validates that the string is actual UTF-8. + */ +template +bool generic_validate_utf8(const uint8_t * input, size_t length) { + checker c{}; + buf_block_reader<64> reader(input, length); + while (reader.has_full_block()) { + simd::simd8x64 in(reader.full_block()); + c.check_next_input(in); + reader.advance(); + } + uint8_t block[64]{}; + reader.get_remainder(block); + simd::simd8x64 in(block); + c.check_next_input(in); + reader.advance(); + c.check_eof(); + return c.errors() == error_code::SUCCESS; +} + +bool generic_validate_utf8(const char * input, size_t length) { + return generic_validate_utf8(reinterpret_cast(input),length); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage1/utf8_validator.h */ + +// +// Stage 2 +// +/* begin file src/generic/stage2/stringparsing.h */ +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace ppc64 { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage2/stringparsing.h */ +/* begin file src/generic/stage2/tape_builder.h */ +/* begin file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/logger.h */ +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace ppc64 { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/tape_writer.h */ +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct number_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage2/tape_writer.h */ + +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; + + simdjson_inline tape_builder(dom::document &doc) noexcept; + + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // class tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +// private: + +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} + +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; +} + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file src/generic/stage2/tape_builder.h */ + +// +// Implementation-specific overrides +// +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage1 { + +simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { + // On PPC, we don't short-circuit this if there are no backslashes, because the branch gives us no + // benefit and therefore makes things worse. + // if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } + return find_escaped_branchless(backslash); +} + +} // namespace stage1 +} // unnamed namespace + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return ppc64::stage1::json_minifier::minify<64>(buf, len, dst, dst_len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return ppc64::stage1::json_structural_indexer::index<64>(buf, len, *this, streaming); +} + +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return ppc64::stage1::generic_validate_utf8(buf,len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return ppc64::stringparsing::parse_string(src, dst, replacement_char); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return ppc64::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace ppc64 +} // namespace simdjson + +/* begin file include/simdjson/ppc64/end.h */ +/* end file include/simdjson/ppc64/end.h */ +/* end file src/ppc64/dom_parser_implementation.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_WESTMERE +/* begin file src/westmere/implementation.cpp */ +/* begin file include/simdjson/westmere/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "westmere" +// #define SIMDJSON_IMPLEMENTATION westmere +SIMDJSON_TARGET_WESTMERE +/* end file include/simdjson/westmere/begin.h */ + +namespace simdjson { +namespace westmere { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + +} // namespace westmere +} // namespace simdjson + +/* begin file include/simdjson/westmere/end.h */ +SIMDJSON_UNTARGET_WESTMERE +/* end file include/simdjson/westmere/end.h */ +/* end file src/westmere/implementation.cpp */ +/* begin file src/westmere/dom_parser_implementation.cpp */ +/* begin file include/simdjson/westmere/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "westmere" +// #define SIMDJSON_IMPLEMENTATION westmere +SIMDJSON_TARGET_WESTMERE +/* end file include/simdjson/westmere/begin.h */ + +// +// Stage 1 +// + +namespace simdjson { +namespace westmere { +namespace { + +using namespace simd; + +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); + + simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } + simdjson_inline uint64_t op() const noexcept { return _op; } + simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } + + uint64_t _whitespace; + uint64_t _op; +}; + +simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { + // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why + // we can't use the generic lookup_16. + auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); + + // The 6 operators (:,[]{}) have these values: + // + // , 2C + // : 3A + // [ 5B + // { 7B + // ] 5D + // } 7D + // + // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. + // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then + // match it (against | 0x20). + // + // To prevent recognizing other characters, everything else gets compared with 0, which cannot + // match due to the | 0x20. + // + // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , + // and :. This gets caught in stage 2, which checks the actual character to ensure the right + // operators are in the right places. + const auto op_table = simd8::repeat_16( + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B + ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D + ); + + // We compute whitespace and op separately. If the code later only use one or the + // other, given the fact that all functions are aggressively inlined, we can + // hope that useless computations will be omitted. This is namely case when + // minifying (we only need whitespace). + + + const uint64_t whitespace = in.eq({ + _mm_shuffle_epi8(whitespace_table, in.chunks[0]), + _mm_shuffle_epi8(whitespace_table, in.chunks[1]), + _mm_shuffle_epi8(whitespace_table, in.chunks[2]), + _mm_shuffle_epi8(whitespace_table, in.chunks[3]) + }); + // Turn [ and ] into { and } + const simd8x64 curlified{ + in.chunks[0] | 0x20, + in.chunks[1] | 0x20, + in.chunks[2] | 0x20, + in.chunks[3] | 0x20 + }; + const uint64_t op = curlified.eq({ + _mm_shuffle_epi8(op_table, in.chunks[0]), + _mm_shuffle_epi8(op_table, in.chunks[1]), + _mm_shuffle_epi8(op_table, in.chunks[2]), + _mm_shuffle_epi8(op_table, in.chunks[3]) + }); + return { whitespace, op }; +} + +simdjson_inline bool is_ascii(const simd8x64& input) { + return input.reduce_or().is_ascii(); +} + +simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { + simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); +} + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_third_byte | is_fourth_byte) > int8_t(0); +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +namespace simdjson { +namespace westmere { +namespace { +namespace utf8_validation { + +using namespace simd; + + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, + + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } + + // + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. + // + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } + + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; + + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); + } + + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; + } + +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation + +using utf8_validation::utf8_checker; + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ +/* begin file src/generic/stage1/json_structural_indexer.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +/* begin file src/generic/stage1/buf_block_reader.h */ +namespace simdjson { +namespace westmere { +namespace { + +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; + } + buf[64] = '\0'; + return buf; +} + +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } + +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; +} + +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; +} + +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; +} + +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage1/buf_block_reader.h */ +/* begin file src/generic/stage1/json_string_scanner.h */ +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { + +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : + _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} + + // Escaped characters (characters following an escape() character) + simdjson_inline uint64_t escaped() const { return _escaped; } + // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) + simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } + // Real (non-backslashed) quotes + simdjson_inline uint64_t quote() const { return _quote; } + // Start quotes of strings + simdjson_inline uint64_t string_start() const { return _quote & _in_string; } + // End quotes of strings + simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } + // Only characters inside the string (not including the quotes) + simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } + + // backslash characters + uint64_t _backslash; + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-backslashed ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; + +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Intended to be defined by the implementation + simdjson_inline uint64_t find_escaped(uint64_t escape); + simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); + + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; + // Whether the first character of the next iteration is escaped. + uint64_t prev_escaped = 0ULL; +}; + +// +// Finds escaped characters (characters following \). +// +// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). +// +// Does this by: +// - Shift the escape mask to get potentially escaped characters (characters after backslashes). +// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) +// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) +// +// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all +// escape sequences, filters out the ones that start on even bits, and adds that to the mask of +// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since +// the start bit causes a carry), and leaves even-bit sequences alone. +// +// Example: +// +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape +// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape +// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later +// invert_mask | | cxxx c xx c| even_seq << 1 +// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit +// escaped | x | x x x x x x x x | +// desired | x | x x x x x x x x | +// text | \\\ | \\\"\\\" \\\" \\"\\" | +// +simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { + // If there was overflow, pretend the first character isn't a backslash + backslash &= ~prev_escaped; + uint64_t follows_escape = backslash << 1 | prev_escaped; + + // Get sequences starting on even bits by clearing out the odd series using + + const uint64_t even_bits = 0x5555555555555555ULL; + uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; + uint64_t sequences_starting_on_even_bits; + prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); + uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. + + // Mask every other backslashed character as an escaped character + // Flip the mask for sequences that start on even bits, to correct them + return (even_bits ^ invert_mask) & follows_escape; +} + +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = find_escaped(backslash); + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + // right shift of a signed value expected to be well-defined and standard + // compliant as of C++20, John Regher from Utah U. says this is fine code + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block( + backslash, + escaped, + quote, + in_string + ); +} + +simdjson_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage1/json_string_scanner.h */ +/* begin file src/generic/stage1/json_scanner.h */ +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { + +/** + * A block of scanned json, with information on operators and scalars. + * + * We seek to identify pseudo-structural characters. Anything that is inside + * a string must be omitted (hence & ~_string.string_tail()). + * Otherwise, pseudo-structural characters come in two forms. + * 1. We have the structural characters ([,],{,},:, comma). The + * term 'structural character' is from the JSON RFC. + * 2. We have the 'scalar pseudo-structural characters'. + * Scalars are quotes, and any character except structural characters and white space. + * + * To identify the scalar pseudo-structural characters, we must look at what comes + * before them: it must be a space, a quote or a structural characters. + * Starting with simdjson v0.3, we identify them by + * negation: we identify everything that is followed by a non-quote scalar, + * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. + */ +struct json_block { +public: + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + + /** + * The start of structurals. + * In simdjson prior to v0.3, these were called the pseudo-structural characters. + **/ + simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } + /** All JSON whitespace (i.e. not in a string) */ + simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } + + // Helpers + + /** Whether the given characters are inside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } + /** Whether the given characters are outside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } + + // string and escape characters + json_string_block _string; + // whitespace, structural characters ('operators'), scalars + json_character_block _characters; + // whether the previous character was a scalar + uint64_t _follows_potential_nonquote_scalar; +private: + // Potential structurals (i.e. disregarding strings) + + /** + * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". + * They may reside inside a string. + **/ + simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } + /** + * The start of non-operator runs, like 123, true and "abc". + * It main reside inside a string. + **/ + simdjson_inline uint64_t potential_scalar_start() const noexcept { + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space + // then we know that it is irrelevant structurally. + return _characters.scalar() & ~follows_potential_scalar(); + } + /** + * Whether the given character is immediately after a non-operator like 123, true. + * The characters following a quote are not included. + */ + simdjson_inline uint64_t follows_potential_scalar() const noexcept { + // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character + // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a + // white space. + // It is understood that within quoted region, anything at all could be marked (irrelevant). + return _follows_potential_nonquote_scalar; + } +}; + +/** + * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. + * + * The scanner starts by calculating two distinct things: + * - string characters (taking \" into account) + * - structural characters or 'operators' ([]{},:, comma) + * and scalars (runs of non-operators like 123, true and "abc") + * + * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: + * in particular, the operator/scalar bit will find plenty of things that are actually part of + * strings. When we're done, json_block will fuse the two together by masking out tokens that are + * part of a string. + */ +class json_scanner { +public: + json_scanner() = default; + simdjson_inline json_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Whether the last character of the previous iteration is part of a scalar token + // (anything except whitespace or a structural character/'operator'). + uint64_t prev_scalar = 0ULL; + json_string_scanner string_scanner{}; +}; + + +// +// Check if the current character immediately follows a matching character. +// +// For example, this checks for quotes with backslashes in front of them: +// +// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); +// +simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { + const uint64_t result = match << 1 | overflow; + overflow = match >> 63; + return result; +} + +simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { + json_string_block strings = string_scanner.next(in); + // identifies the white-space and the structural characters + json_character_block characters = json_character_block::classify(in); + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // + // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) + // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential + // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we + // may need to add an extra check when parsing strings. + // + // Performance: there are many ways to skin this cat. + const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); + uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); +} + +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage1/json_scanner.h */ +/* begin file src/generic/stage1/json_minifier.h */ +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage1/json_minifier.h */ +/* begin file src/generic/stage1/find_next_document_index.h */ +namespace simdjson { +namespace westmere { +namespace { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage1/find_next_document_index.h */ + +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { + +class bit_indexer { +public: + uint32_t *tail; + + simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} + + // flatten out values in 'bits' assuming that they are are to have values of idx + // plus their position in the bitvector, and store these indexes at + // base_ptr[base] incrementing base as we go + // will potentially store extra values beyond end of valid bits, so base_ptr + // needs to be large enough to handle this + // + // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own + // version of the code. +#ifdef SIMDJSON_CUSTOM_BIT_INDEXER + simdjson_inline void write(uint32_t idx, uint64_t bits); +#else + simdjson_inline void write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) + return; +#if SIMDJSON_PREFER_REVERSE_BITS + /** + * ARM lacks a fast trailing zero instruction, but it has a fast + * bit reversal instruction and a fast leading zero instruction. + * Thus it may be profitable to reverse the bits (once) and then + * to rely on a sequence of instructions that call the leading + * zero instruction. + * + * Performance notes: + * The chosen routine is not optimal in terms of data dependency + * since zero_leading_bit might require two instructions. However, + * it tends to minimize the total number of instructions which is + * beneficial. + */ + + uint64_t rev_bits = reverse_bits(bits); + int cnt = static_cast(count_ones(bits)); + int i = 0; + // Do the first 8 all together + for (; i<8; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + i = 8; + for (; i<16; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + i = 16; + while (rev_bits != 0) { + int lz = leading_zeroes(rev_bits); + this->tail[i++] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + } + } + this->tail += cnt; +#else // SIMDJSON_PREFER_REVERSE_BITS + /** + * Under recent x64 systems, we often have both a fast trailing zero + * instruction and a fast 'clear-lower-bit' instruction so the following + * algorithm can be competitive. + */ + + int cnt = static_cast(count_ones(bits)); + // Do the first 8 all together + for (int i=0; i<8; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + for (int i=8; i<16; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + int i = 16; + do { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + i++; + } while (i < cnt); + } + } + + this->tail += cnt; +#endif + } +#endif // SIMDJSON_CUSTOM_BIT_INDEXER + +}; + +class json_structural_indexer { +public: + /** + * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. + * + * @param partial Setting the partial parameter to true allows the find_structural_bits to + * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If + * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. + */ + template + static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; + +private: + simdjson_inline json_structural_indexer(uint32_t *structural_indexes); + template + simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); + simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); + + json_scanner scanner{}; + utf8_checker checker{}; + bit_indexer indexer; + uint64_t prev_structurals = 0; + uint64_t unescaped_chars_error = 0; +}; + +simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} + +// Skip the last character if it is partial +simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { + if (simdjson_unlikely(len < 3)) { + switch (len) { + case 2: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left + return len; + case 1: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + return len; + case 0: + return len; + } + } + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left + if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left + return len; +} + +// +// PERF NOTES: +// We pipe 2 inputs through these stages: +// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load +// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. +// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. +// The output of step 1 depends entirely on this information. These functions don't quite use +// up enough CPU: the second half of the functions is highly serial, only using 1 execution core +// at a time. The second input's scans has some dependency on the first ones finishing it, but +// they can make a lot of progress before they need that information. +// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that +// to finish: utf-8 checks and generating the output from the last iteration. +// +// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all +// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough +// workout. +// +template +error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { + if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } + // We guard the rest of the code so that we can assume that len > 0 throughout. + if (len == 0) { return EMPTY; } + if (is_streaming(partial)) { + len = trim_partial_utf8(buf, len); + // If you end up with an empty window after trimming + // the partial UTF-8 bytes, then chances are good that you + // have an UTF-8 formatting error. + if(len == 0) { return UTF8_ERROR; } + } + buf_block_reader reader(buf, len); + json_structural_indexer indexer(parser.structural_indexes.get()); + + // Read all but the last block + while (reader.has_full_block()) { + indexer.step(reader.full_block(), reader); + } + // Take care of the last block (will always be there unless file is empty which is + // not supposed to happen.) + uint8_t block[STEP_SIZE]; + if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } + indexer.step(block, reader); + return indexer.finish(parser, reader.block_index(), len, partial); +} + +template<> +simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block); + simd::simd8x64 in_2(block+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1, reader.block_index()); + this->next(in_2, block_2, reader.block_index()+64); + reader.advance(); +} + +template<> +simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block); + json_block block_1 = scanner.next(in_1); + this->next(in_1, block_1, reader.block_index()); + reader.advance(); +} + +simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { + uint64_t unescaped = in.lteq(0x1F); +#if SIMDJSON_UTF8VALIDATION + checker.check_next_input(in); +#endif + indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser + prev_structurals = block.structural_start(); + unescaped_chars_error |= block.non_quote_inside_string(unescaped); +} + +simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { + // Write out the final iteration's structurals + indexer.write(uint32_t(idx-64), prev_structurals); + error_code error = scanner.finish(); + // We deliberately break down the next expression so that it is + // human readable. + const bool should_we_exit = is_streaming(partial) ? + ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING + : (error != SUCCESS); // if partial is false, we must have SUCCESS + const bool have_unclosed_string = (error == UNCLOSED_STRING); + if (simdjson_unlikely(should_we_exit)) { return error; } + + if (unescaped_chars_error) { + return UNESCAPED_CHARS; + } + parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); + /*** + * The On Demand API requires special padding. + * + * This is related to https://github.com/simdjson/simdjson/issues/906 + * Basically, we want to make sure that if the parsing continues beyond the last (valid) + * structural character, it quickly stops. + * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. + * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing + * continues, then it must be [,] or }. + * Suppose it is ] or }. We backtrack to the first character, what could it be that would + * not trigger an error? It could be ] or } but no, because you can't start a document that way. + * It can't be a comma, a colon or any simple value. So the only way we could continue is + * if the repeated character is [. But if so, the document must start with [. But if the document + * starts with [, it should end with ]. If we enforce that rule, then we would get + * ][[ which is invalid. + * + * This is illustrated with the test array_iterate_unclosed_error() on the following input: + * R"({ "a": [,,)" + **/ + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final + parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); + parser.structural_indexes[parser.n_structural_indexes + 2] = 0; + parser.next_structural_index = 0; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + return EMPTY; + } + if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { + return UNEXPECTED_ERROR; + } + if (partial == stage1_mode::streaming_partial) { + // If we have an unclosed string, then the last structural + // will be the quote and we want to make sure to omit it. + if(have_unclosed_string) { + parser.n_structural_indexes--; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } + } + // We truncate the input to the end of the last complete document (or zero). + auto new_structural_indexes = find_next_document_index(parser); + if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + + parser.n_structural_indexes = new_structural_indexes; + } else if (partial == stage1_mode::streaming_final) { + if(have_unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + // We tolerate an unclosed string at the very end of the stream. Indeed, users + // often load their data in bulk without being careful and they want us to ignore + // the trailing garbage. + return EMPTY; + } + } + checker.check_eof(); + return checker.errors(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage1/json_structural_indexer.h */ +/* begin file src/generic/stage1/utf8_validator.h */ +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { + +/** + * Validates that the string is actual UTF-8. + */ +template +bool generic_validate_utf8(const uint8_t * input, size_t length) { + checker c{}; + buf_block_reader<64> reader(input, length); + while (reader.has_full_block()) { + simd::simd8x64 in(reader.full_block()); + c.check_next_input(in); + reader.advance(); + } + uint8_t block[64]{}; + reader.get_remainder(block); + simd::simd8x64 in(block); + c.check_next_input(in); + reader.advance(); + c.check_eof(); + return c.errors() == error_code::SUCCESS; +} + +bool generic_validate_utf8(const char * input, size_t length) { + return generic_validate_utf8(reinterpret_cast(input),length); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage1/utf8_validator.h */ + +// +// Stage 2 +// +/* begin file src/generic/stage2/stringparsing.h */ +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace westmere { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage2/stringparsing.h */ +/* begin file src/generic/stage2/tape_builder.h */ +/* begin file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/logger.h */ +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace westmere { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage2/json_iterator.h */ +/* begin file src/generic/stage2/tape_writer.h */ +namespace simdjson { +namespace westmere { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct number_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage2/tape_writer.h */ + +namespace simdjson { +namespace westmere { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; + + simdjson_inline tape_builder(dom::document &doc) noexcept; + + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // class tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +// private: + +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} + +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; +} + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file src/generic/stage2/tape_builder.h */ + +// +// Implementation-specific overrides +// + +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { + +simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { + if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } + return find_escaped_branchless(backslash); +} + +} // namespace stage1 +} // unnamed namespace + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return westmere::stage1::json_minifier::minify<64>(buf, len, dst, dst_len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return westmere::stage1::json_structural_indexer::index<64>(_buf, _len, *this, streaming); +} + +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return westmere::stage1::generic_validate_utf8(buf,len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return westmere::stringparsing::parse_string(src, dst, replacement_char); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return westmere::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace westmere +} // namespace simdjson + +/* begin file include/simdjson/westmere/end.h */ +SIMDJSON_UNTARGET_WESTMERE +/* end file include/simdjson/westmere/end.h */ +/* end file src/westmere/dom_parser_implementation.cpp */ +#endif + +SIMDJSON_POP_DISABLE_WARNINGS +/* end file src/simdjson.cpp */ diff --git a/contrib/simdjson/simdjson.h b/contrib/simdjson/simdjson.h new file mode 100644 index 00000000000..d57a890d176 --- /dev/null +++ b/contrib/simdjson/simdjson.h @@ -0,0 +1,32088 @@ +/* auto-generated on 2023-07-06 21:34:14 -0400. Do not edit! */ +/* begin file include/simdjson.h */ +#ifndef SIMDJSON_H +#define SIMDJSON_H + +/** + * @mainpage + * + * Check the [README.md](https://github.com/simdjson/simdjson/blob/master/README.md#simdjson--parsing-gigabytes-of-json-per-second). + * + * Sample code. See https://github.com/simdjson/simdjson/blob/master/doc/basics.md for more examples. + + #include "simdjson.h" + + int main(void) { + // load from `twitter.json` file: + simdjson::dom::parser parser; + simdjson::dom::element tweets = parser.load("twitter.json"); + std::cout << tweets["search_metadata"]["count"] << " results." << std::endl; + + // Parse and iterate through an array of objects + auto abstract_json = R"( [ + { "12345" : {"a":12.34, "b":56.78, "c": 9998877} }, + { "12545" : {"a":11.44, "b":12.78, "c": 11111111} } + ] )"_padded; + + for (simdjson::dom::object obj : parser.parse(abstract_json)) { + for(const auto key_value : obj) { + cout << "key: " << key_value.key << " : "; + simdjson::dom::object innerobj = key_value.value; + cout << "a: " << double(innerobj["a"]) << ", "; + cout << "b: " << double(innerobj["b"]) << ", "; + cout << "c: " << int64_t(innerobj["c"]) << endl; + } + } + } + */ + +/* begin file include/simdjson/simdjson_version.h */ +// /include/simdjson/simdjson_version.h automatically generated by release.py, +// do not change by hand +#ifndef SIMDJSON_SIMDJSON_VERSION_H +#define SIMDJSON_SIMDJSON_VERSION_H + +/** The version of simdjson being used (major.minor.revision) */ +#define SIMDJSON_VERSION "3.2.1" + +namespace simdjson { +enum { + /** + * The major version (MAJOR.minor.revision) of simdjson being used. + */ + SIMDJSON_VERSION_MAJOR = 3, + /** + * The minor version (major.MINOR.revision) of simdjson being used. + */ + SIMDJSON_VERSION_MINOR = 2, + /** + * The revision (major.minor.REVISION) of simdjson being used. + */ + SIMDJSON_VERSION_REVISION = 1 +}; +} // namespace simdjson + +#endif // SIMDJSON_SIMDJSON_VERSION_H +/* end file include/simdjson/simdjson_version.h */ +/* begin file include/simdjson/dom.h */ +#ifndef SIMDJSON_DOM_H +#define SIMDJSON_DOM_H + +/* begin file include/simdjson/base.h */ +#ifndef SIMDJSON_BASE_H +#define SIMDJSON_BASE_H + +/* begin file include/simdjson/compiler_check.h */ +#ifndef SIMDJSON_COMPILER_CHECK_H +#define SIMDJSON_COMPILER_CHECK_H + +#ifndef __cplusplus +#error simdjson requires a C++ compiler +#endif + +#ifndef SIMDJSON_CPLUSPLUS +#if defined(_MSVC_LANG) && !defined(__clang__) +#define SIMDJSON_CPLUSPLUS (_MSC_VER == 1900 ? 201103L : _MSVC_LANG) +#else +#define SIMDJSON_CPLUSPLUS __cplusplus +#endif +#endif + +// C++ 17 +#if !defined(SIMDJSON_CPLUSPLUS17) && (SIMDJSON_CPLUSPLUS >= 201703L) +#define SIMDJSON_CPLUSPLUS17 1 +#endif + +// C++ 14 +#if !defined(SIMDJSON_CPLUSPLUS14) && (SIMDJSON_CPLUSPLUS >= 201402L) +#define SIMDJSON_CPLUSPLUS14 1 +#endif + +// C++ 11 +#if !defined(SIMDJSON_CPLUSPLUS11) && (SIMDJSON_CPLUSPLUS >= 201103L) +#define SIMDJSON_CPLUSPLUS11 1 +#endif + +#ifndef SIMDJSON_CPLUSPLUS11 +#error simdjson requires a compiler compliant with the C++11 standard +#endif + +#endif // SIMDJSON_COMPILER_CHECK_H +/* end file include/simdjson/compiler_check.h */ +/* begin file include/simdjson/common_defs.h */ +#ifndef SIMDJSON_COMMON_DEFS_H +#define SIMDJSON_COMMON_DEFS_H + +#include +/* begin file include/simdjson/portability.h */ +#ifndef SIMDJSON_PORTABILITY_H +#define SIMDJSON_PORTABILITY_H + +#include +#include +#include +#include +#include +#ifndef _WIN32 +// strcasecmp, strncasecmp +#include +#endif + +#ifdef _MSC_VER +#define SIMDJSON_VISUAL_STUDIO 1 +/** + * We want to differentiate carefully between + * clang under visual studio and regular visual + * studio. + * + * Under clang for Windows, we enable: + * * target pragmas so that part and only part of the + * code gets compiled for advanced instructions. + * + */ +#ifdef __clang__ +// clang under visual studio +#define SIMDJSON_CLANG_VISUAL_STUDIO 1 +#else +// just regular visual studio (best guess) +#define SIMDJSON_REGULAR_VISUAL_STUDIO 1 +#endif // __clang__ +#endif // _MSC_VER + +#if defined(__x86_64__) || defined(_M_AMD64) +#define SIMDJSON_IS_X86_64 1 +#elif defined(__aarch64__) || defined(_M_ARM64) +#define SIMDJSON_IS_ARM64 1 +#elif defined(__PPC64__) || defined(_M_PPC64) +#if defined(__ALTIVEC__) +#define SIMDJSON_IS_PPC64_VMX 1 +#endif // defined(__ALTIVEC__) +#else +#define SIMDJSON_IS_32BITS 1 + +// We do not support 32-bit platforms, but it can be +// handy to identify them. +#if defined(_M_IX86) || defined(__i386__) +#define SIMDJSON_IS_X86_32BITS 1 +#elif defined(__arm__) || defined(_M_ARM) +#define SIMDJSON_IS_ARM_32BITS 1 +#elif defined(__PPC__) || defined(_M_PPC) +#define SIMDJSON_IS_PPC_32BITS 1 +#endif + +#endif // defined(__x86_64__) || defined(_M_AMD64) +#ifndef SIMDJSON_IS_32BITS +#define SIMDJSON_IS_32BITS 0 +#endif + +#if SIMDJSON_IS_32BITS +#ifndef SIMDJSON_NO_PORTABILITY_WARNING +#pragma message("The simdjson library is designed \ +for 64-bit processors and it seems that you are not \ +compiling for a known 64-bit platform. All fast kernels \ +will be disabled and performance may be poor. Please \ +use a 64-bit target such as x64, 64-bit ARM or 64-bit PPC.") +#endif // SIMDJSON_NO_PORTABILITY_WARNING +#endif // SIMDJSON_IS_32BITS + +// this is almost standard? +#undef SIMDJSON_STRINGIFY_IMPLEMENTATION_ +#undef SIMDJSON_STRINGIFY +#define SIMDJSON_STRINGIFY_IMPLEMENTATION_(a) #a +#define SIMDJSON_STRINGIFY(a) SIMDJSON_STRINGIFY_IMPLEMENTATION_(a) + +// Our fast kernels require 64-bit systems. +// +// On 32-bit x86, we lack 64-bit popcnt, lzcnt, blsr instructions. +// Furthermore, the number of SIMD registers is reduced. +// +// On 32-bit ARM, we would have smaller registers. +// +// The simdjson users should still have the fallback kernel. It is +// slower, but it should run everywhere. + +// +// Enable valid runtime implementations, and select SIMDJSON_BUILTIN_IMPLEMENTATION +// + +// We are going to use runtime dispatch. +#if SIMDJSON_IS_X86_64 +#ifdef __clang__ +// clang does not have GCC push pop +// warning: clang attribute push can't be used within a namespace in clang up +// til 8.0 so SIMDJSON_TARGET_REGION and SIMDJSON_UNTARGET_REGION must be *outside* of a +// namespace. +#define SIMDJSON_TARGET_REGION(T) \ + _Pragma(SIMDJSON_STRINGIFY( \ + clang attribute push(__attribute__((target(T))), apply_to = function))) +#define SIMDJSON_UNTARGET_REGION _Pragma("clang attribute pop") +#elif defined(__GNUC__) +// GCC is easier +#define SIMDJSON_TARGET_REGION(T) \ + _Pragma("GCC push_options") _Pragma(SIMDJSON_STRINGIFY(GCC target(T))) +#define SIMDJSON_UNTARGET_REGION _Pragma("GCC pop_options") +#endif // clang then gcc + +#endif // x86 + +// Default target region macros don't do anything. +#ifndef SIMDJSON_TARGET_REGION +#define SIMDJSON_TARGET_REGION(T) +#define SIMDJSON_UNTARGET_REGION +#endif + +// Is threading enabled? +#if defined(_REENTRANT) || defined(_MT) +#ifndef SIMDJSON_THREADS_ENABLED +#define SIMDJSON_THREADS_ENABLED +#endif +#endif + +// workaround for large stack sizes under -O0. +// https://github.com/simdjson/simdjson/issues/691 +#ifdef __APPLE__ +#ifndef __OPTIMIZE__ +// Apple systems have small stack sizes in secondary threads. +// Lack of compiler optimization may generate high stack usage. +// Users may want to disable threads for safety, but only when +// in debug mode which we detect by the fact that the __OPTIMIZE__ +// macro is not defined. +#undef SIMDJSON_THREADS_ENABLED +#endif +#endif + + +#if defined(__clang__) +#define SIMDJSON_NO_SANITIZE_UNDEFINED __attribute__((no_sanitize("undefined"))) +#elif defined(__GNUC__) +#define SIMDJSON_NO_SANITIZE_UNDEFINED __attribute__((no_sanitize_undefined)) +#else +#define SIMDJSON_NO_SANITIZE_UNDEFINED +#endif + + +#if defined(__clang__) || defined(__GNUC__) +#if defined(__has_feature) +# if __has_feature(memory_sanitizer) +#define SIMDJSON_NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory"))) +# endif // if __has_feature(memory_sanitizer) +#endif // defined(__has_feature) +#endif +// make sure it is defined as 'nothing' if it is unapplicable. +#ifndef SIMDJSON_NO_SANITIZE_MEMORY +#define SIMDJSON_NO_SANITIZE_MEMORY +#endif + +#if SIMDJSON_VISUAL_STUDIO +// This is one case where we do not distinguish between +// regular visual studio and clang under visual studio. +// clang under Windows has _stricmp (like visual studio) but not strcasecmp (as clang normally has) +#define simdjson_strcasecmp _stricmp +#define simdjson_strncasecmp _strnicmp +#else +// The strcasecmp, strncasecmp, and strcasestr functions do not work with multibyte strings (e.g. UTF-8). +// So they are only useful for ASCII in our context. +// https://www.gnu.org/software/libunistring/manual/libunistring.html#char-_002a-strings +#define simdjson_strcasecmp strcasecmp +#define simdjson_strncasecmp strncasecmp +#endif + +#if defined(NDEBUG) || defined(__OPTIMIZE__) || (defined(_MSC_VER) && !defined(_DEBUG)) +// If NDEBUG is set, or __OPTIMIZE__ is set, or we are under MSVC in release mode, +// then do away with asserts and use __assume. +#if SIMDJSON_VISUAL_STUDIO +#define SIMDJSON_UNREACHABLE() __assume(0) +#define SIMDJSON_ASSUME(COND) __assume(COND) +#else +#define SIMDJSON_UNREACHABLE() __builtin_unreachable(); +#define SIMDJSON_ASSUME(COND) do { if (!(COND)) __builtin_unreachable(); } while (0) +#endif + +#else // defined(NDEBUG) || defined(__OPTIMIZE__) || (defined(_MSC_VER) && !defined(_DEBUG)) +// This should only ever be enabled in debug mode. +#define SIMDJSON_UNREACHABLE() assert(0); +#define SIMDJSON_ASSUME(COND) assert(COND) + +#endif + +#endif // SIMDJSON_PORTABILITY_H +/* end file include/simdjson/portability.h */ + +namespace simdjson { + +namespace internal { +/** + * @private + * Our own implementation of the C++17 to_chars function. + * Defined in src/to_chars + */ +char *to_chars(char *first, const char *last, double value); +/** + * @private + * A number parsing routine. + * Defined in src/from_chars + */ +double from_chars(const char *first) noexcept; +double from_chars(const char *first, const char* end) noexcept; + +} + +#ifndef SIMDJSON_EXCEPTIONS +#if __cpp_exceptions +#define SIMDJSON_EXCEPTIONS 1 +#else +#define SIMDJSON_EXCEPTIONS 0 +#endif +#endif + +/** The maximum document size supported by simdjson. */ +constexpr size_t SIMDJSON_MAXSIZE_BYTES = 0xFFFFFFFF; + +/** + * The amount of padding needed in a buffer to parse JSON. + * + * The input buf should be readable up to buf + SIMDJSON_PADDING + * this is a stopgap; there should be a better description of the + * main loop and its behavior that abstracts over this + * See https://github.com/simdjson/simdjson/issues/174 + */ +constexpr size_t SIMDJSON_PADDING = 64; + +/** + * By default, simdjson supports this many nested objects and arrays. + * + * This is the default for parser::max_depth(). + */ +constexpr size_t DEFAULT_MAX_DEPTH = 1024; + +} // namespace simdjson + +#if defined(__GNUC__) + // Marks a block with a name so that MCA analysis can see it. + #define SIMDJSON_BEGIN_DEBUG_BLOCK(name) __asm volatile("# LLVM-MCA-BEGIN " #name); + #define SIMDJSON_END_DEBUG_BLOCK(name) __asm volatile("# LLVM-MCA-END " #name); + #define SIMDJSON_DEBUG_BLOCK(name, block) BEGIN_DEBUG_BLOCK(name); block; END_DEBUG_BLOCK(name); +#else + #define SIMDJSON_BEGIN_DEBUG_BLOCK(name) + #define SIMDJSON_END_DEBUG_BLOCK(name) + #define SIMDJSON_DEBUG_BLOCK(name, block) +#endif + +// Align to N-byte boundary +#define SIMDJSON_ROUNDUP_N(a, n) (((a) + ((n)-1)) & ~((n)-1)) +#define SIMDJSON_ROUNDDOWN_N(a, n) ((a) & ~((n)-1)) + +#define SIMDJSON_ISALIGNED_N(ptr, n) (((uintptr_t)(ptr) & ((n)-1)) == 0) + +#if SIMDJSON_REGULAR_VISUAL_STUDIO + + #define simdjson_really_inline __forceinline + #define simdjson_never_inline __declspec(noinline) + + #define simdjson_unused + #define simdjson_warn_unused + + #ifndef simdjson_likely + #define simdjson_likely(x) x + #endif + #ifndef simdjson_unlikely + #define simdjson_unlikely(x) x + #endif + + #define SIMDJSON_PUSH_DISABLE_WARNINGS __pragma(warning( push )) + #define SIMDJSON_PUSH_DISABLE_ALL_WARNINGS __pragma(warning( push, 0 )) + #define SIMDJSON_DISABLE_VS_WARNING(WARNING_NUMBER) __pragma(warning( disable : WARNING_NUMBER )) + // Get rid of Intellisense-only warnings (Code Analysis) + // Though __has_include is C++17, it is supported in Visual Studio 2017 or better (_MSC_VER>=1910). + #ifdef __has_include + #if __has_include() + #include + #define SIMDJSON_DISABLE_UNDESIRED_WARNINGS SIMDJSON_DISABLE_VS_WARNING(ALL_CPPCORECHECK_WARNINGS) + #endif + #endif + + #ifndef SIMDJSON_DISABLE_UNDESIRED_WARNINGS + #define SIMDJSON_DISABLE_UNDESIRED_WARNINGS + #endif + + #define SIMDJSON_DISABLE_DEPRECATED_WARNING SIMDJSON_DISABLE_VS_WARNING(4996) + #define SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING + #define SIMDJSON_POP_DISABLE_WARNINGS __pragma(warning( pop )) + +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + + #define simdjson_really_inline inline __attribute__((always_inline)) + #define simdjson_never_inline inline __attribute__((noinline)) + + #define simdjson_unused __attribute__((unused)) + #define simdjson_warn_unused __attribute__((warn_unused_result)) + + #ifndef simdjson_likely + #define simdjson_likely(x) __builtin_expect(!!(x), 1) + #endif + #ifndef simdjson_unlikely + #define simdjson_unlikely(x) __builtin_expect(!!(x), 0) + #endif + + #define SIMDJSON_PUSH_DISABLE_WARNINGS _Pragma("GCC diagnostic push") + // gcc doesn't seem to disable all warnings with all and extra, add warnings here as necessary + // We do it separately for clang since it has different warnings. + #ifdef __clang__ + // clang is missing -Wmaybe-uninitialized. + #define SIMDJSON_PUSH_DISABLE_ALL_WARNINGS SIMDJSON_PUSH_DISABLE_WARNINGS \ + SIMDJSON_DISABLE_GCC_WARNING(-Weffc++) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wall) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wconversion) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wextra) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wattributes) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wimplicit-fallthrough) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wnon-virtual-dtor) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wreturn-type) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wshadow) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused-parameter) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused-variable) + #else // __clang__ + #define SIMDJSON_PUSH_DISABLE_ALL_WARNINGS SIMDJSON_PUSH_DISABLE_WARNINGS \ + SIMDJSON_DISABLE_GCC_WARNING(-Weffc++) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wall) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wconversion) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wextra) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wattributes) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wimplicit-fallthrough) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wnon-virtual-dtor) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wreturn-type) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wshadow) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused-parameter) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused-variable) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wmaybe-uninitialized) + #endif // __clang__ + + #define SIMDJSON_PRAGMA(P) _Pragma(#P) + #define SIMDJSON_DISABLE_GCC_WARNING(WARNING) SIMDJSON_PRAGMA(GCC diagnostic ignored #WARNING) + #if SIMDJSON_CLANG_VISUAL_STUDIO + #define SIMDJSON_DISABLE_UNDESIRED_WARNINGS SIMDJSON_DISABLE_GCC_WARNING(-Wmicrosoft-include) + #else + #define SIMDJSON_DISABLE_UNDESIRED_WARNINGS + #endif + #define SIMDJSON_DISABLE_DEPRECATED_WARNING SIMDJSON_DISABLE_GCC_WARNING(-Wdeprecated-declarations) + #define SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING SIMDJSON_DISABLE_GCC_WARNING(-Wstrict-overflow) + #define SIMDJSON_POP_DISABLE_WARNINGS _Pragma("GCC diagnostic pop") + + + +#endif // MSC_VER + +#if defined(simdjson_inline) + // Prefer the user's definition of simdjson_inline; don't define it ourselves. +#elif defined(__GNUC__) && !defined(__OPTIMIZE__) + // If optimizations are disabled, forcing inlining can lead to significant + // code bloat and high compile times. Don't use simdjson_really_inline for + // unoptimized builds. + #define simdjson_inline inline +#else + // Force inlining for most simdjson functions. + #define simdjson_inline simdjson_really_inline +#endif + +#if SIMDJSON_VISUAL_STUDIO + /** + * Windows users need to do some extra work when building + * or using a dynamic library (DLL). When building, we need + * to set SIMDJSON_DLLIMPORTEXPORT to __declspec(dllexport). + * When *using* the DLL, the user needs to set + * SIMDJSON_DLLIMPORTEXPORT __declspec(dllimport). + * + * Static libraries not need require such work. + * + * It does not matter here whether you are using + * the regular visual studio or clang under visual + * studio, you still need to handle these issues. + * + * Non-Windows systems do not have this complexity. + */ + #if SIMDJSON_BUILDING_WINDOWS_DYNAMIC_LIBRARY + // We set SIMDJSON_BUILDING_WINDOWS_DYNAMIC_LIBRARY when we build a DLL under Windows. + // It should never happen that both SIMDJSON_BUILDING_WINDOWS_DYNAMIC_LIBRARY and + // SIMDJSON_USING_WINDOWS_DYNAMIC_LIBRARY are set. + #define SIMDJSON_DLLIMPORTEXPORT __declspec(dllexport) + #elif SIMDJSON_USING_WINDOWS_DYNAMIC_LIBRARY + // Windows user who call a dynamic library should set SIMDJSON_USING_WINDOWS_DYNAMIC_LIBRARY to 1. + #define SIMDJSON_DLLIMPORTEXPORT __declspec(dllimport) + #else + // We assume by default static linkage + #define SIMDJSON_DLLIMPORTEXPORT + #endif + +/** + * Workaround for the vcpkg package manager. Only vcpkg should + * ever touch the next line. The SIMDJSON_USING_LIBRARY macro is otherwise unused. + */ +#if SIMDJSON_USING_LIBRARY +#define SIMDJSON_DLLIMPORTEXPORT __declspec(dllimport) +#endif +/** + * End of workaround for the vcpkg package manager. + */ +#else + #define SIMDJSON_DLLIMPORTEXPORT +#endif + +// C++17 requires string_view. +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_HAS_STRING_VIEW +#include // by the standard, this has to be safe. +#endif + +// This macro (__cpp_lib_string_view) has to be defined +// for C++17 and better, but if it is otherwise defined, +// we are going to assume that string_view is available +// even if we do not have C++17 support. +#ifdef __cpp_lib_string_view +#define SIMDJSON_HAS_STRING_VIEW +#endif + +// Some systems have string_view even if we do not have C++17 support, +// and even if __cpp_lib_string_view is undefined, it is the case +// with Apple clang version 11. +// We must handle it. *This is important.* +#ifndef SIMDJSON_HAS_STRING_VIEW +#if defined __has_include +// do not combine the next #if with the previous one (unsafe) +#if __has_include () +// now it is safe to trigger the include +#include // though the file is there, it does not follow that we got the implementation +#if defined(_LIBCPP_STRING_VIEW) +// Ah! So we under libc++ which under its Library Fundamentals Technical Specification, which preceded C++17, +// included string_view. +// This means that we have string_view *even though* we may not have C++17. +#define SIMDJSON_HAS_STRING_VIEW +#endif // _LIBCPP_STRING_VIEW +#endif // __has_include () +#endif // defined __has_include +#endif // def SIMDJSON_HAS_STRING_VIEW +// end of complicated but important routine to try to detect string_view. + +// +// Backfill std::string_view using nonstd::string_view on systems where +// we expect that string_view is missing. Important: if we get this wrong, +// we will end up with two string_view definitions and potential trouble. +// That is why we work so hard above to avoid it. +// +#ifndef SIMDJSON_HAS_STRING_VIEW +SIMDJSON_PUSH_DISABLE_ALL_WARNINGS +/* begin file include/simdjson/nonstd/string_view.hpp */ +// Copyright 2017-2020 by Martin Moene +// +// string-view lite, a C++17-like string_view for C++98 and later. +// For more information see https://github.com/martinmoene/string-view-lite +// +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +#pragma once + +#ifndef NONSTD_SV_LITE_H_INCLUDED +#define NONSTD_SV_LITE_H_INCLUDED + +#define string_view_lite_MAJOR 1 +#define string_view_lite_MINOR 7 +#define string_view_lite_PATCH 0 + +#define string_view_lite_VERSION nssv_STRINGIFY(string_view_lite_MAJOR) "." nssv_STRINGIFY(string_view_lite_MINOR) "." nssv_STRINGIFY(string_view_lite_PATCH) + +#define nssv_STRINGIFY( x ) nssv_STRINGIFY_( x ) +#define nssv_STRINGIFY_( x ) #x + +// string-view lite configuration: + +#define nssv_STRING_VIEW_DEFAULT 0 +#define nssv_STRING_VIEW_NONSTD 1 +#define nssv_STRING_VIEW_STD 2 + +// tweak header support: + +#ifdef __has_include +# if __has_include() +# include +# endif +#define nssv_HAVE_TWEAK_HEADER 1 +#else +#define nssv_HAVE_TWEAK_HEADER 0 +//# pragma message("string_view.hpp: Note: Tweak header not supported.") +#endif + +// string_view selection and configuration: + +#if !defined( nssv_CONFIG_SELECT_STRING_VIEW ) +# define nssv_CONFIG_SELECT_STRING_VIEW ( nssv_HAVE_STD_STRING_VIEW ? nssv_STRING_VIEW_STD : nssv_STRING_VIEW_NONSTD ) +#endif + +#ifndef nssv_CONFIG_STD_SV_OPERATOR +# define nssv_CONFIG_STD_SV_OPERATOR 0 +#endif + +#ifndef nssv_CONFIG_USR_SV_OPERATOR +# define nssv_CONFIG_USR_SV_OPERATOR 1 +#endif + +#ifdef nssv_CONFIG_CONVERSION_STD_STRING +# define nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS nssv_CONFIG_CONVERSION_STD_STRING +# define nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS nssv_CONFIG_CONVERSION_STD_STRING +#endif + +#ifndef nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS +# define nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS 1 +#endif + +#ifndef nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS +# define nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS 1 +#endif + +#ifndef nssv_CONFIG_NO_STREAM_INSERTION +# define nssv_CONFIG_NO_STREAM_INSERTION 0 +#endif + +// Control presence of exception handling (try and auto discover): + +#ifndef nssv_CONFIG_NO_EXCEPTIONS +# if defined(_MSC_VER) +# include // for _HAS_EXCEPTIONS +# endif +# if defined(__cpp_exceptions) || defined(__EXCEPTIONS) || (_HAS_EXCEPTIONS) +# define nssv_CONFIG_NO_EXCEPTIONS 0 +# else +# define nssv_CONFIG_NO_EXCEPTIONS 1 +# endif +#endif + +// C++ language version detection (C++23 is speculative): +// Note: VC14.0/1900 (VS2015) lacks too much from C++14. + +#ifndef nssv_CPLUSPLUS +# if defined(_MSVC_LANG ) && !defined(__clang__) +# define nssv_CPLUSPLUS (_MSC_VER == 1900 ? 201103L : _MSVC_LANG ) +# else +# define nssv_CPLUSPLUS __cplusplus +# endif +#endif + +#define nssv_CPP98_OR_GREATER ( nssv_CPLUSPLUS >= 199711L ) +#define nssv_CPP11_OR_GREATER ( nssv_CPLUSPLUS >= 201103L ) +#define nssv_CPP11_OR_GREATER_ ( nssv_CPLUSPLUS >= 201103L ) +#define nssv_CPP14_OR_GREATER ( nssv_CPLUSPLUS >= 201402L ) +#define nssv_CPP17_OR_GREATER ( nssv_CPLUSPLUS >= 201703L ) +#define nssv_CPP20_OR_GREATER ( nssv_CPLUSPLUS >= 202002L ) +#define nssv_CPP23_OR_GREATER ( nssv_CPLUSPLUS >= 202300L ) + +// use C++17 std::string_view if available and requested: + +#if nssv_CPP17_OR_GREATER && defined(__has_include ) +# if __has_include( ) +# define nssv_HAVE_STD_STRING_VIEW 1 +# else +# define nssv_HAVE_STD_STRING_VIEW 0 +# endif +#else +# define nssv_HAVE_STD_STRING_VIEW 0 +#endif + +#define nssv_USES_STD_STRING_VIEW ( (nssv_CONFIG_SELECT_STRING_VIEW == nssv_STRING_VIEW_STD) || ((nssv_CONFIG_SELECT_STRING_VIEW == nssv_STRING_VIEW_DEFAULT) && nssv_HAVE_STD_STRING_VIEW) ) + +#define nssv_HAVE_STARTS_WITH ( nssv_CPP20_OR_GREATER || !nssv_USES_STD_STRING_VIEW ) +#define nssv_HAVE_ENDS_WITH nssv_HAVE_STARTS_WITH + +// +// Use C++17 std::string_view: +// + +#if nssv_USES_STD_STRING_VIEW + +#include + +// Extensions for std::string: + +#if nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS + +namespace nonstd { + +template< class CharT, class Traits, class Allocator = std::allocator > +std::basic_string +to_string( std::basic_string_view v, Allocator const & a = Allocator() ) +{ + return std::basic_string( v.begin(), v.end(), a ); +} + +template< class CharT, class Traits, class Allocator > +std::basic_string_view +to_string_view( std::basic_string const & s ) +{ + return std::basic_string_view( s.data(), s.size() ); +} + +// Literal operators sv and _sv: + +#if nssv_CONFIG_STD_SV_OPERATOR + +using namespace std::literals::string_view_literals; + +#endif + +#if nssv_CONFIG_USR_SV_OPERATOR + +inline namespace literals { +inline namespace string_view_literals { + + +constexpr std::string_view operator "" _sv( const char* str, size_t len ) noexcept // (1) +{ + return std::string_view{ str, len }; +} + +constexpr std::u16string_view operator "" _sv( const char16_t* str, size_t len ) noexcept // (2) +{ + return std::u16string_view{ str, len }; +} + +constexpr std::u32string_view operator "" _sv( const char32_t* str, size_t len ) noexcept // (3) +{ + return std::u32string_view{ str, len }; +} + +constexpr std::wstring_view operator "" _sv( const wchar_t* str, size_t len ) noexcept // (4) +{ + return std::wstring_view{ str, len }; +} + +}} // namespace literals::string_view_literals + +#endif // nssv_CONFIG_USR_SV_OPERATOR + +} // namespace nonstd + +#endif // nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS + +namespace nonstd { + +using std::string_view; +using std::wstring_view; +using std::u16string_view; +using std::u32string_view; +using std::basic_string_view; + +// literal "sv" and "_sv", see above + +using std::operator==; +using std::operator!=; +using std::operator<; +using std::operator<=; +using std::operator>; +using std::operator>=; + +using std::operator<<; + +} // namespace nonstd + +#else // nssv_HAVE_STD_STRING_VIEW + +// +// Before C++17: use string_view lite: +// + +// Compiler versions: +// +// MSVC++ 6.0 _MSC_VER == 1200 nssv_COMPILER_MSVC_VERSION == 60 (Visual Studio 6.0) +// MSVC++ 7.0 _MSC_VER == 1300 nssv_COMPILER_MSVC_VERSION == 70 (Visual Studio .NET 2002) +// MSVC++ 7.1 _MSC_VER == 1310 nssv_COMPILER_MSVC_VERSION == 71 (Visual Studio .NET 2003) +// MSVC++ 8.0 _MSC_VER == 1400 nssv_COMPILER_MSVC_VERSION == 80 (Visual Studio 2005) +// MSVC++ 9.0 _MSC_VER == 1500 nssv_COMPILER_MSVC_VERSION == 90 (Visual Studio 2008) +// MSVC++ 10.0 _MSC_VER == 1600 nssv_COMPILER_MSVC_VERSION == 100 (Visual Studio 2010) +// MSVC++ 11.0 _MSC_VER == 1700 nssv_COMPILER_MSVC_VERSION == 110 (Visual Studio 2012) +// MSVC++ 12.0 _MSC_VER == 1800 nssv_COMPILER_MSVC_VERSION == 120 (Visual Studio 2013) +// MSVC++ 14.0 _MSC_VER == 1900 nssv_COMPILER_MSVC_VERSION == 140 (Visual Studio 2015) +// MSVC++ 14.1 _MSC_VER >= 1910 nssv_COMPILER_MSVC_VERSION == 141 (Visual Studio 2017) +// MSVC++ 14.2 _MSC_VER >= 1920 nssv_COMPILER_MSVC_VERSION == 142 (Visual Studio 2019) + +#if defined(_MSC_VER ) && !defined(__clang__) +# define nssv_COMPILER_MSVC_VER (_MSC_VER ) +# define nssv_COMPILER_MSVC_VERSION (_MSC_VER / 10 - 10 * ( 5 + (_MSC_VER < 1900 ) ) ) +#else +# define nssv_COMPILER_MSVC_VER 0 +# define nssv_COMPILER_MSVC_VERSION 0 +#endif + +#define nssv_COMPILER_VERSION( major, minor, patch ) ( 10 * ( 10 * (major) + (minor) ) + (patch) ) + +#if defined( __apple_build_version__ ) +# define nssv_COMPILER_APPLECLANG_VERSION nssv_COMPILER_VERSION(__clang_major__, __clang_minor__, __clang_patchlevel__) +# define nssv_COMPILER_CLANG_VERSION 0 +#elif defined( __clang__ ) +# define nssv_COMPILER_APPLECLANG_VERSION 0 +# define nssv_COMPILER_CLANG_VERSION nssv_COMPILER_VERSION(__clang_major__, __clang_minor__, __clang_patchlevel__) +#else +# define nssv_COMPILER_APPLECLANG_VERSION 0 +# define nssv_COMPILER_CLANG_VERSION 0 +#endif + +#if defined(__GNUC__) && !defined(__clang__) +# define nssv_COMPILER_GNUC_VERSION nssv_COMPILER_VERSION(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) +#else +# define nssv_COMPILER_GNUC_VERSION 0 +#endif + +// half-open range [lo..hi): +#define nssv_BETWEEN( v, lo, hi ) ( (lo) <= (v) && (v) < (hi) ) + +// Presence of language and library features: + +#ifdef _HAS_CPP0X +# define nssv_HAS_CPP0X _HAS_CPP0X +#else +# define nssv_HAS_CPP0X 0 +#endif + +// Unless defined otherwise below, consider VC14 as C++11 for variant-lite: + +#if nssv_COMPILER_MSVC_VER >= 1900 +# undef nssv_CPP11_OR_GREATER +# define nssv_CPP11_OR_GREATER 1 +#endif + +#define nssv_CPP11_90 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1500) +#define nssv_CPP11_100 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1600) +#define nssv_CPP11_110 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1700) +#define nssv_CPP11_120 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1800) +#define nssv_CPP11_140 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1900) +#define nssv_CPP11_141 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1910) + +#define nssv_CPP14_000 (nssv_CPP14_OR_GREATER) +#define nssv_CPP17_000 (nssv_CPP17_OR_GREATER) + +// Presence of C++11 language features: + +#define nssv_HAVE_CONSTEXPR_11 nssv_CPP11_140 +#define nssv_HAVE_EXPLICIT_CONVERSION nssv_CPP11_140 +#define nssv_HAVE_INLINE_NAMESPACE nssv_CPP11_140 +#define nssv_HAVE_IS_DEFAULT nssv_CPP11_140 +#define nssv_HAVE_IS_DELETE nssv_CPP11_140 +#define nssv_HAVE_NOEXCEPT nssv_CPP11_140 +#define nssv_HAVE_NULLPTR nssv_CPP11_100 +#define nssv_HAVE_REF_QUALIFIER nssv_CPP11_140 +#define nssv_HAVE_UNICODE_LITERALS nssv_CPP11_140 +#define nssv_HAVE_USER_DEFINED_LITERALS nssv_CPP11_140 +#define nssv_HAVE_WCHAR16_T nssv_CPP11_100 +#define nssv_HAVE_WCHAR32_T nssv_CPP11_100 + +#if ! ( ( nssv_CPP11_OR_GREATER && nssv_COMPILER_CLANG_VERSION ) || nssv_BETWEEN( nssv_COMPILER_CLANG_VERSION, 300, 400 ) ) +# define nssv_HAVE_STD_DEFINED_LITERALS nssv_CPP11_140 +#else +# define nssv_HAVE_STD_DEFINED_LITERALS 0 +#endif + +// Presence of C++14 language features: + +#define nssv_HAVE_CONSTEXPR_14 nssv_CPP14_000 + +// Presence of C++17 language features: + +#define nssv_HAVE_NODISCARD nssv_CPP17_000 + +// Presence of C++ library features: + +#define nssv_HAVE_STD_HASH nssv_CPP11_120 + +// Presence of compiler intrinsics: + +// Providing char-type specializations for compare() and length() that +// use compiler intrinsics can improve compile- and run-time performance. +// +// The challenge is in using the right combinations of builtin availability +// and its constexpr-ness. +// +// | compiler | __builtin_memcmp (constexpr) | memcmp (constexpr) | +// |----------|------------------------------|---------------------| +// | clang | 4.0 (>= 4.0 ) | any (? ) | +// | clang-a | 9.0 (>= 9.0 ) | any (? ) | +// | gcc | any (constexpr) | any (? ) | +// | msvc | >= 14.2 C++17 (>= 14.2 ) | any (? ) | + +#define nssv_HAVE_BUILTIN_VER ( (nssv_CPP17_000 && nssv_COMPILER_MSVC_VERSION >= 142) || nssv_COMPILER_GNUC_VERSION > 0 || nssv_COMPILER_CLANG_VERSION >= 400 || nssv_COMPILER_APPLECLANG_VERSION >= 900 ) +#define nssv_HAVE_BUILTIN_CE ( nssv_HAVE_BUILTIN_VER ) + +#define nssv_HAVE_BUILTIN_MEMCMP ( (nssv_HAVE_CONSTEXPR_14 && nssv_HAVE_BUILTIN_CE) || !nssv_HAVE_CONSTEXPR_14 ) +#define nssv_HAVE_BUILTIN_STRLEN ( (nssv_HAVE_CONSTEXPR_11 && nssv_HAVE_BUILTIN_CE) || !nssv_HAVE_CONSTEXPR_11 ) + +#ifdef __has_builtin +# define nssv_HAVE_BUILTIN( x ) __has_builtin( x ) +#else +# define nssv_HAVE_BUILTIN( x ) 0 +#endif + +#if nssv_HAVE_BUILTIN(__builtin_memcmp) || nssv_HAVE_BUILTIN_VER +# define nssv_BUILTIN_MEMCMP __builtin_memcmp +#else +# define nssv_BUILTIN_MEMCMP memcmp +#endif + +#if nssv_HAVE_BUILTIN(__builtin_strlen) || nssv_HAVE_BUILTIN_VER +# define nssv_BUILTIN_STRLEN __builtin_strlen +#else +# define nssv_BUILTIN_STRLEN strlen +#endif + +// C++ feature usage: + +#if nssv_HAVE_CONSTEXPR_11 +# define nssv_constexpr constexpr +#else +# define nssv_constexpr /*constexpr*/ +#endif + +#if nssv_HAVE_CONSTEXPR_14 +# define nssv_constexpr14 constexpr +#else +# define nssv_constexpr14 /*constexpr*/ +#endif + +#if nssv_HAVE_EXPLICIT_CONVERSION +# define nssv_explicit explicit +#else +# define nssv_explicit /*explicit*/ +#endif + +#if nssv_HAVE_INLINE_NAMESPACE +# define nssv_inline_ns inline +#else +# define nssv_inline_ns /*inline*/ +#endif + +#if nssv_HAVE_NOEXCEPT +# define nssv_noexcept noexcept +#else +# define nssv_noexcept /*noexcept*/ +#endif + +//#if nssv_HAVE_REF_QUALIFIER +//# define nssv_ref_qual & +//# define nssv_refref_qual && +//#else +//# define nssv_ref_qual /*&*/ +//# define nssv_refref_qual /*&&*/ +//#endif + +#if nssv_HAVE_NULLPTR +# define nssv_nullptr nullptr +#else +# define nssv_nullptr NULL +#endif + +#if nssv_HAVE_NODISCARD +# define nssv_nodiscard [[nodiscard]] +#else +# define nssv_nodiscard /*[[nodiscard]]*/ +#endif + +// Additional includes: + +#include +#include +#include +#include +#include // std::char_traits<> + +#if ! nssv_CONFIG_NO_STREAM_INSERTION +# include +#endif + +#if ! nssv_CONFIG_NO_EXCEPTIONS +# include +#endif + +#if nssv_CPP11_OR_GREATER +# include +#endif + +// Clang, GNUC, MSVC warning suppression macros: + +#if defined(__clang__) +# pragma clang diagnostic ignored "-Wreserved-user-defined-literal" +# pragma clang diagnostic push +# pragma clang diagnostic ignored "-Wuser-defined-literals" +#elif defined(__GNUC__) +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wliteral-suffix" +#endif // __clang__ + +#if nssv_COMPILER_MSVC_VERSION >= 140 +# define nssv_SUPPRESS_MSGSL_WARNING(expr) [[gsl::suppress(expr)]] +# define nssv_SUPPRESS_MSVC_WARNING(code, descr) __pragma(warning(suppress: code) ) +# define nssv_DISABLE_MSVC_WARNINGS(codes) __pragma(warning(push)) __pragma(warning(disable: codes)) +#else +# define nssv_SUPPRESS_MSGSL_WARNING(expr) +# define nssv_SUPPRESS_MSVC_WARNING(code, descr) +# define nssv_DISABLE_MSVC_WARNINGS(codes) +#endif + +#if defined(__clang__) +# define nssv_RESTORE_WARNINGS() _Pragma("clang diagnostic pop") +#elif defined(__GNUC__) +# define nssv_RESTORE_WARNINGS() _Pragma("GCC diagnostic pop") +#elif nssv_COMPILER_MSVC_VERSION >= 140 +# define nssv_RESTORE_WARNINGS() __pragma(warning(pop )) +#else +# define nssv_RESTORE_WARNINGS() +#endif + +// Suppress the following MSVC (GSL) warnings: +// - C4455, non-gsl : 'operator ""sv': literal suffix identifiers that do not +// start with an underscore are reserved +// - C26472, gsl::t.1 : don't use a static_cast for arithmetic conversions; +// use brace initialization, gsl::narrow_cast or gsl::narow +// - C26481: gsl::b.1 : don't use pointer arithmetic. Use span instead + +nssv_DISABLE_MSVC_WARNINGS( 4455 26481 26472 ) +//nssv_DISABLE_CLANG_WARNINGS( "-Wuser-defined-literals" ) +//nssv_DISABLE_GNUC_WARNINGS( -Wliteral-suffix ) + +namespace nonstd { namespace sv_lite { + +// +// basic_string_view declaration: +// + +template +< + class CharT, + class Traits = std::char_traits +> +class basic_string_view; + +namespace detail { + +// support constexpr comparison in C++14; +// for C++17 and later, use provided traits: + +template< typename CharT > +inline nssv_constexpr14 int compare( CharT const * s1, CharT const * s2, std::size_t count ) +{ + while ( count-- != 0 ) + { + if ( *s1 < *s2 ) return -1; + if ( *s1 > *s2 ) return +1; + ++s1; ++s2; + } + return 0; +} + +#if nssv_HAVE_BUILTIN_MEMCMP + +// specialization of compare() for char, see also generic compare() above: + +inline nssv_constexpr14 int compare( char const * s1, char const * s2, std::size_t count ) +{ + return nssv_BUILTIN_MEMCMP( s1, s2, count ); +} + +#endif + +#if nssv_HAVE_BUILTIN_STRLEN + +// specialization of length() for char, see also generic length() further below: + +inline nssv_constexpr std::size_t length( char const * s ) +{ + return nssv_BUILTIN_STRLEN( s ); +} + +#endif + +#if defined(__OPTIMIZE__) + +// gcc, clang provide __OPTIMIZE__ +// Expect tail call optimization to make length() non-recursive: + +template< typename CharT > +inline nssv_constexpr std::size_t length( CharT * s, std::size_t result = 0 ) +{ + return *s == '\0' ? result : length( s + 1, result + 1 ); +} + +#else // OPTIMIZE + +// non-recursive: + +template< typename CharT > +inline nssv_constexpr14 std::size_t length( CharT * s ) +{ + std::size_t result = 0; + while ( *s++ != '\0' ) + { + ++result; + } + return result; +} + +#endif // OPTIMIZE + +#if nssv_CPP11_OR_GREATER && ! nssv_CPP17_OR_GREATER +#if defined(__OPTIMIZE__) + +// gcc, clang provide __OPTIMIZE__ +// Expect tail call optimization to make search() non-recursive: + +template< class CharT, class Traits = std::char_traits > +constexpr const CharT* search( basic_string_view haystack, basic_string_view needle ) +{ + return haystack.starts_with( needle ) ? haystack.begin() : + haystack.empty() ? haystack.end() : search( haystack.substr(1), needle ); +} + +#else // OPTIMIZE + +// non-recursive: + +template< class CharT, class Traits = std::char_traits > +constexpr const CharT* search( basic_string_view haystack, basic_string_view needle ) +{ + return std::search( haystack.begin(), haystack.end(), needle.begin(), needle.end() ); +} + +#endif // OPTIMIZE +#endif // nssv_CPP11_OR_GREATER && ! nssv_CPP17_OR_GREATER + +} // namespace detail + +// +// basic_string_view: +// + +template +< + class CharT, + class Traits /* = std::char_traits */ +> +class basic_string_view +{ +public: + // Member types: + + typedef Traits traits_type; + typedef CharT value_type; + + typedef CharT * pointer; + typedef CharT const * const_pointer; + typedef CharT & reference; + typedef CharT const & const_reference; + + typedef const_pointer iterator; + typedef const_pointer const_iterator; + typedef std::reverse_iterator< const_iterator > reverse_iterator; + typedef std::reverse_iterator< const_iterator > const_reverse_iterator; + + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + + // 24.4.2.1 Construction and assignment: + + nssv_constexpr basic_string_view() nssv_noexcept + : data_( nssv_nullptr ) + , size_( 0 ) + {} + +#if nssv_CPP11_OR_GREATER + nssv_constexpr basic_string_view( basic_string_view const & other ) nssv_noexcept = default; +#else + nssv_constexpr basic_string_view( basic_string_view const & other ) nssv_noexcept + : data_( other.data_) + , size_( other.size_) + {} +#endif + + nssv_constexpr basic_string_view( CharT const * s, size_type count ) nssv_noexcept // non-standard noexcept + : data_( s ) + , size_( count ) + {} + + nssv_constexpr basic_string_view( CharT const * s) nssv_noexcept // non-standard noexcept + : data_( s ) +#if nssv_CPP17_OR_GREATER + , size_( Traits::length(s) ) +#elif nssv_CPP11_OR_GREATER + , size_( detail::length(s) ) +#else + , size_( Traits::length(s) ) +#endif + {} + +#if nssv_HAVE_NULLPTR +# if nssv_HAVE_IS_DELETE + nssv_constexpr basic_string_view( std::nullptr_t ) nssv_noexcept = delete; +# else + private: nssv_constexpr basic_string_view( std::nullptr_t ) nssv_noexcept; public: +# endif +#endif + + // Assignment: + +#if nssv_CPP11_OR_GREATER + nssv_constexpr14 basic_string_view & operator=( basic_string_view const & other ) nssv_noexcept = default; +#else + nssv_constexpr14 basic_string_view & operator=( basic_string_view const & other ) nssv_noexcept + { + data_ = other.data_; + size_ = other.size_; + return *this; + } +#endif + + // 24.4.2.2 Iterator support: + + nssv_constexpr const_iterator begin() const nssv_noexcept { return data_; } + nssv_constexpr const_iterator end() const nssv_noexcept { return data_ + size_; } + + nssv_constexpr const_iterator cbegin() const nssv_noexcept { return begin(); } + nssv_constexpr const_iterator cend() const nssv_noexcept { return end(); } + + nssv_constexpr const_reverse_iterator rbegin() const nssv_noexcept { return const_reverse_iterator( end() ); } + nssv_constexpr const_reverse_iterator rend() const nssv_noexcept { return const_reverse_iterator( begin() ); } + + nssv_constexpr const_reverse_iterator crbegin() const nssv_noexcept { return rbegin(); } + nssv_constexpr const_reverse_iterator crend() const nssv_noexcept { return rend(); } + + // 24.4.2.3 Capacity: + + nssv_constexpr size_type size() const nssv_noexcept { return size_; } + nssv_constexpr size_type length() const nssv_noexcept { return size_; } + nssv_constexpr size_type max_size() const nssv_noexcept { return (std::numeric_limits< size_type >::max)(); } + + // since C++20 + nssv_nodiscard nssv_constexpr bool empty() const nssv_noexcept + { + return 0 == size_; + } + + // 24.4.2.4 Element access: + + nssv_constexpr const_reference operator[]( size_type pos ) const + { + return data_at( pos ); + } + + nssv_constexpr14 const_reference at( size_type pos ) const + { +#if nssv_CONFIG_NO_EXCEPTIONS + assert( pos < size() ); +#else + if ( pos >= size() ) + { + throw std::out_of_range("nonstd::string_view::at()"); + } +#endif + return data_at( pos ); + } + + nssv_constexpr const_reference front() const { return data_at( 0 ); } + nssv_constexpr const_reference back() const { return data_at( size() - 1 ); } + + nssv_constexpr const_pointer data() const nssv_noexcept { return data_; } + + // 24.4.2.5 Modifiers: + + nssv_constexpr14 void remove_prefix( size_type n ) + { + assert( n <= size() ); + data_ += n; + size_ -= n; + } + + nssv_constexpr14 void remove_suffix( size_type n ) + { + assert( n <= size() ); + size_ -= n; + } + + nssv_constexpr14 void swap( basic_string_view & other ) nssv_noexcept + { + const basic_string_view tmp(other); + other = *this; + *this = tmp; + } + + // 24.4.2.6 String operations: + + size_type copy( CharT * dest, size_type n, size_type pos = 0 ) const + { +#if nssv_CONFIG_NO_EXCEPTIONS + assert( pos <= size() ); +#else + if ( pos > size() ) + { + throw std::out_of_range("nonstd::string_view::copy()"); + } +#endif + const size_type rlen = (std::min)( n, size() - pos ); + + (void) Traits::copy( dest, data() + pos, rlen ); + + return rlen; + } + + nssv_constexpr14 basic_string_view substr( size_type pos = 0, size_type n = npos ) const + { +#if nssv_CONFIG_NO_EXCEPTIONS + assert( pos <= size() ); +#else + if ( pos > size() ) + { + throw std::out_of_range("nonstd::string_view::substr()"); + } +#endif + return basic_string_view( data() + pos, (std::min)( n, size() - pos ) ); + } + + // compare(), 6x: + + nssv_constexpr14 int compare( basic_string_view other ) const nssv_noexcept // (1) + { +#if nssv_CPP17_OR_GREATER + if ( const int result = Traits::compare( data(), other.data(), (std::min)( size(), other.size() ) ) ) +#else + if ( const int result = detail::compare( data(), other.data(), (std::min)( size(), other.size() ) ) ) +#endif + { + return result; + } + + return size() == other.size() ? 0 : size() < other.size() ? -1 : 1; + } + + nssv_constexpr int compare( size_type pos1, size_type n1, basic_string_view other ) const // (2) + { + return substr( pos1, n1 ).compare( other ); + } + + nssv_constexpr int compare( size_type pos1, size_type n1, basic_string_view other, size_type pos2, size_type n2 ) const // (3) + { + return substr( pos1, n1 ).compare( other.substr( pos2, n2 ) ); + } + + nssv_constexpr int compare( CharT const * s ) const // (4) + { + return compare( basic_string_view( s ) ); + } + + nssv_constexpr int compare( size_type pos1, size_type n1, CharT const * s ) const // (5) + { + return substr( pos1, n1 ).compare( basic_string_view( s ) ); + } + + nssv_constexpr int compare( size_type pos1, size_type n1, CharT const * s, size_type n2 ) const // (6) + { + return substr( pos1, n1 ).compare( basic_string_view( s, n2 ) ); + } + + // 24.4.2.7 Searching: + + // starts_with(), 3x, since C++20: + + nssv_constexpr bool starts_with( basic_string_view v ) const nssv_noexcept // (1) + { + return size() >= v.size() && compare( 0, v.size(), v ) == 0; + } + + nssv_constexpr bool starts_with( CharT c ) const nssv_noexcept // (2) + { + return starts_with( basic_string_view( &c, 1 ) ); + } + + nssv_constexpr bool starts_with( CharT const * s ) const // (3) + { + return starts_with( basic_string_view( s ) ); + } + + // ends_with(), 3x, since C++20: + + nssv_constexpr bool ends_with( basic_string_view v ) const nssv_noexcept // (1) + { + return size() >= v.size() && compare( size() - v.size(), npos, v ) == 0; + } + + nssv_constexpr bool ends_with( CharT c ) const nssv_noexcept // (2) + { + return ends_with( basic_string_view( &c, 1 ) ); + } + + nssv_constexpr bool ends_with( CharT const * s ) const // (3) + { + return ends_with( basic_string_view( s ) ); + } + + // find(), 4x: + + nssv_constexpr size_type find( basic_string_view v, size_type pos = 0 ) const nssv_noexcept // (1) + { + return assert( v.size() == 0 || v.data() != nssv_nullptr ) + , pos >= size() + ? npos : to_pos( +#if nssv_CPP11_OR_GREATER && ! nssv_CPP17_OR_GREATER + detail::search( substr(pos), v ) +#else + std::search( cbegin() + pos, cend(), v.cbegin(), v.cend(), Traits::eq ) +#endif + ); + } + + nssv_constexpr size_type find( CharT c, size_type pos = 0 ) const nssv_noexcept // (2) + { + return find( basic_string_view( &c, 1 ), pos ); + } + + nssv_constexpr size_type find( CharT const * s, size_type pos, size_type n ) const // (3) + { + return find( basic_string_view( s, n ), pos ); + } + + nssv_constexpr size_type find( CharT const * s, size_type pos = 0 ) const // (4) + { + return find( basic_string_view( s ), pos ); + } + + // rfind(), 4x: + + nssv_constexpr14 size_type rfind( basic_string_view v, size_type pos = npos ) const nssv_noexcept // (1) + { + if ( size() < v.size() ) + { + return npos; + } + + if ( v.empty() ) + { + return (std::min)( size(), pos ); + } + + const_iterator last = cbegin() + (std::min)( size() - v.size(), pos ) + v.size(); + const_iterator result = std::find_end( cbegin(), last, v.cbegin(), v.cend(), Traits::eq ); + + return result != last ? size_type( result - cbegin() ) : npos; + } + + nssv_constexpr14 size_type rfind( CharT c, size_type pos = npos ) const nssv_noexcept // (2) + { + return rfind( basic_string_view( &c, 1 ), pos ); + } + + nssv_constexpr14 size_type rfind( CharT const * s, size_type pos, size_type n ) const // (3) + { + return rfind( basic_string_view( s, n ), pos ); + } + + nssv_constexpr14 size_type rfind( CharT const * s, size_type pos = npos ) const // (4) + { + return rfind( basic_string_view( s ), pos ); + } + + // find_first_of(), 4x: + + nssv_constexpr size_type find_first_of( basic_string_view v, size_type pos = 0 ) const nssv_noexcept // (1) + { + return pos >= size() + ? npos + : to_pos( std::find_first_of( cbegin() + pos, cend(), v.cbegin(), v.cend(), Traits::eq ) ); + } + + nssv_constexpr size_type find_first_of( CharT c, size_type pos = 0 ) const nssv_noexcept // (2) + { + return find_first_of( basic_string_view( &c, 1 ), pos ); + } + + nssv_constexpr size_type find_first_of( CharT const * s, size_type pos, size_type n ) const // (3) + { + return find_first_of( basic_string_view( s, n ), pos ); + } + + nssv_constexpr size_type find_first_of( CharT const * s, size_type pos = 0 ) const // (4) + { + return find_first_of( basic_string_view( s ), pos ); + } + + // find_last_of(), 4x: + + nssv_constexpr size_type find_last_of( basic_string_view v, size_type pos = npos ) const nssv_noexcept // (1) + { + return empty() + ? npos + : pos >= size() + ? find_last_of( v, size() - 1 ) + : to_pos( std::find_first_of( const_reverse_iterator( cbegin() + pos + 1 ), crend(), v.cbegin(), v.cend(), Traits::eq ) ); + } + + nssv_constexpr size_type find_last_of( CharT c, size_type pos = npos ) const nssv_noexcept // (2) + { + return find_last_of( basic_string_view( &c, 1 ), pos ); + } + + nssv_constexpr size_type find_last_of( CharT const * s, size_type pos, size_type count ) const // (3) + { + return find_last_of( basic_string_view( s, count ), pos ); + } + + nssv_constexpr size_type find_last_of( CharT const * s, size_type pos = npos ) const // (4) + { + return find_last_of( basic_string_view( s ), pos ); + } + + // find_first_not_of(), 4x: + + nssv_constexpr size_type find_first_not_of( basic_string_view v, size_type pos = 0 ) const nssv_noexcept // (1) + { + return pos >= size() + ? npos + : to_pos( std::find_if( cbegin() + pos, cend(), not_in_view( v ) ) ); + } + + nssv_constexpr size_type find_first_not_of( CharT c, size_type pos = 0 ) const nssv_noexcept // (2) + { + return find_first_not_of( basic_string_view( &c, 1 ), pos ); + } + + nssv_constexpr size_type find_first_not_of( CharT const * s, size_type pos, size_type count ) const // (3) + { + return find_first_not_of( basic_string_view( s, count ), pos ); + } + + nssv_constexpr size_type find_first_not_of( CharT const * s, size_type pos = 0 ) const // (4) + { + return find_first_not_of( basic_string_view( s ), pos ); + } + + // find_last_not_of(), 4x: + + nssv_constexpr size_type find_last_not_of( basic_string_view v, size_type pos = npos ) const nssv_noexcept // (1) + { + return empty() + ? npos + : pos >= size() + ? find_last_not_of( v, size() - 1 ) + : to_pos( std::find_if( const_reverse_iterator( cbegin() + pos + 1 ), crend(), not_in_view( v ) ) ); + } + + nssv_constexpr size_type find_last_not_of( CharT c, size_type pos = npos ) const nssv_noexcept // (2) + { + return find_last_not_of( basic_string_view( &c, 1 ), pos ); + } + + nssv_constexpr size_type find_last_not_of( CharT const * s, size_type pos, size_type count ) const // (3) + { + return find_last_not_of( basic_string_view( s, count ), pos ); + } + + nssv_constexpr size_type find_last_not_of( CharT const * s, size_type pos = npos ) const // (4) + { + return find_last_not_of( basic_string_view( s ), pos ); + } + + // Constants: + +#if nssv_CPP17_OR_GREATER + static nssv_constexpr size_type npos = size_type(-1); +#elif nssv_CPP11_OR_GREATER + enum : size_type { npos = size_type(-1) }; +#else + enum { npos = size_type(-1) }; +#endif + +private: + struct not_in_view + { + const basic_string_view v; + + nssv_constexpr explicit not_in_view( basic_string_view v_ ) : v( v_ ) {} + + nssv_constexpr bool operator()( CharT c ) const + { + return npos == v.find_first_of( c ); + } + }; + + nssv_constexpr size_type to_pos( const_iterator it ) const + { + return it == cend() ? npos : size_type( it - cbegin() ); + } + + nssv_constexpr size_type to_pos( const_reverse_iterator it ) const + { + return it == crend() ? npos : size_type( crend() - it - 1 ); + } + + nssv_constexpr const_reference data_at( size_type pos ) const + { +#if nssv_BETWEEN( nssv_COMPILER_GNUC_VERSION, 1, 500 ) + return data_[pos]; +#else + return assert( pos < size() ), data_[pos]; +#endif + } + +private: + const_pointer data_; + size_type size_; + +public: +#if nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS + + template< class Allocator > + basic_string_view( std::basic_string const & s ) nssv_noexcept + : data_( s.data() ) + , size_( s.size() ) + {} + +#if nssv_HAVE_EXPLICIT_CONVERSION + + template< class Allocator > + explicit operator std::basic_string() const + { + return to_string( Allocator() ); + } + +#endif // nssv_HAVE_EXPLICIT_CONVERSION + +#if nssv_CPP11_OR_GREATER + + template< class Allocator = std::allocator > + std::basic_string + to_string( Allocator const & a = Allocator() ) const + { + return std::basic_string( begin(), end(), a ); + } + +#else + + std::basic_string + to_string() const + { + return std::basic_string( begin(), end() ); + } + + template< class Allocator > + std::basic_string + to_string( Allocator const & a ) const + { + return std::basic_string( begin(), end(), a ); + } + +#endif // nssv_CPP11_OR_GREATER + +#endif // nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS +}; + +// +// Non-member functions: +// + +// 24.4.3 Non-member comparison functions: +// lexicographically compare two string views (function template): + +template< class CharT, class Traits > +nssv_constexpr bool operator== ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +template< class CharT, class Traits > +nssv_constexpr bool operator!= ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits > +nssv_constexpr bool operator< ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +template< class CharT, class Traits > +nssv_constexpr bool operator<= ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +template< class CharT, class Traits > +nssv_constexpr bool operator> ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +template< class CharT, class Traits > +nssv_constexpr bool operator>= ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +// Let S be basic_string_view, and sv be an instance of S. +// Implementations shall provide sufficient additional overloads marked +// constexpr and noexcept so that an object t with an implicit conversion +// to S can be compared according to Table 67. + +#if ! nssv_CPP11_OR_GREATER || nssv_BETWEEN( nssv_COMPILER_MSVC_VERSION, 100, 141 ) + +// accommodate for older compilers: + +// == + +template< class CharT, class Traits> +nssv_constexpr bool operator==( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.size() == detail::length( rhs ) && lhs.compare( rhs ) == 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator==( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return detail::length( lhs ) == rhs.size() && rhs.compare( lhs ) == 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator==( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator==( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +// != + +template< class CharT, class Traits> +nssv_constexpr bool operator!=( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits> +nssv_constexpr bool operator!=( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits> +nssv_constexpr bool operator!=( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits> +nssv_constexpr bool operator!=( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +// < + +template< class CharT, class Traits> +nssv_constexpr bool operator<( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return rhs.compare( lhs ) > 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return rhs.compare( lhs ) > 0; } + +// <= + +template< class CharT, class Traits> +nssv_constexpr bool operator<=( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<=( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return rhs.compare( lhs ) >= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<=( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<=( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return rhs.compare( lhs ) >= 0; } + +// > + +template< class CharT, class Traits> +nssv_constexpr bool operator>( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return rhs.compare( lhs ) < 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return rhs.compare( lhs ) < 0; } + +// >= + +template< class CharT, class Traits> +nssv_constexpr bool operator>=( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>=( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return rhs.compare( lhs ) <= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>=( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>=( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return rhs.compare( lhs ) <= 0; } + +#else // newer compilers: + +#define nssv_BASIC_STRING_VIEW_I(T,U) typename std::decay< basic_string_view >::type + +#if defined(_MSC_VER) // issue 40 +# define nssv_MSVC_ORDER(x) , int=x +#else +# define nssv_MSVC_ORDER(x) /*, int=x*/ +#endif + +// == + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator==( + basic_string_view lhs, + nssv_BASIC_STRING_VIEW_I(CharT, Traits) rhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator==( + nssv_BASIC_STRING_VIEW_I(CharT, Traits) lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +// != + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator!= ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator!= ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +// < + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator< ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator< ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +// <= + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator<= ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator<= ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +// > + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator> ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator> ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +// >= + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator>= ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator>= ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +#undef nssv_MSVC_ORDER +#undef nssv_BASIC_STRING_VIEW_I + +#endif // compiler-dependent approach to comparisons + +// 24.4.4 Inserters and extractors: + +#if ! nssv_CONFIG_NO_STREAM_INSERTION + +namespace detail { + +template< class Stream > +void write_padding( Stream & os, std::streamsize n ) +{ + for ( std::streamsize i = 0; i < n; ++i ) + os.rdbuf()->sputc( os.fill() ); +} + +template< class Stream, class View > +Stream & write_to_stream( Stream & os, View const & sv ) +{ + typename Stream::sentry sentry( os ); + + if ( !sentry ) + return os; + + const std::streamsize length = static_cast( sv.length() ); + + // Whether, and how, to pad: + const bool pad = ( length < os.width() ); + const bool left_pad = pad && ( os.flags() & std::ios_base::adjustfield ) == std::ios_base::right; + + if ( left_pad ) + write_padding( os, os.width() - length ); + + // Write span characters: + os.rdbuf()->sputn( sv.begin(), length ); + + if ( pad && !left_pad ) + write_padding( os, os.width() - length ); + + // Reset output stream width: + os.width( 0 ); + + return os; +} + +} // namespace detail + +template< class CharT, class Traits > +std::basic_ostream & +operator<<( + std::basic_ostream& os, + basic_string_view sv ) +{ + return detail::write_to_stream( os, sv ); +} + +#endif // nssv_CONFIG_NO_STREAM_INSERTION + +// Several typedefs for common character types are provided: + +typedef basic_string_view string_view; +typedef basic_string_view wstring_view; +#if nssv_HAVE_WCHAR16_T +typedef basic_string_view u16string_view; +typedef basic_string_view u32string_view; +#endif + +}} // namespace nonstd::sv_lite + +// +// 24.4.6 Suffix for basic_string_view literals: +// + +#if nssv_HAVE_USER_DEFINED_LITERALS + +namespace nonstd { +nssv_inline_ns namespace literals { +nssv_inline_ns namespace string_view_literals { + +#if nssv_CONFIG_STD_SV_OPERATOR && nssv_HAVE_STD_DEFINED_LITERALS + +nssv_constexpr nonstd::sv_lite::string_view operator "" sv( const char* str, size_t len ) nssv_noexcept // (1) +{ + return nonstd::sv_lite::string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::u16string_view operator "" sv( const char16_t* str, size_t len ) nssv_noexcept // (2) +{ + return nonstd::sv_lite::u16string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::u32string_view operator "" sv( const char32_t* str, size_t len ) nssv_noexcept // (3) +{ + return nonstd::sv_lite::u32string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::wstring_view operator "" sv( const wchar_t* str, size_t len ) nssv_noexcept // (4) +{ + return nonstd::sv_lite::wstring_view{ str, len }; +} + +#endif // nssv_CONFIG_STD_SV_OPERATOR && nssv_HAVE_STD_DEFINED_LITERALS + +#if nssv_CONFIG_USR_SV_OPERATOR + +nssv_constexpr nonstd::sv_lite::string_view operator "" _sv( const char* str, size_t len ) nssv_noexcept // (1) +{ + return nonstd::sv_lite::string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::u16string_view operator "" _sv( const char16_t* str, size_t len ) nssv_noexcept // (2) +{ + return nonstd::sv_lite::u16string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::u32string_view operator "" _sv( const char32_t* str, size_t len ) nssv_noexcept // (3) +{ + return nonstd::sv_lite::u32string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::wstring_view operator "" _sv( const wchar_t* str, size_t len ) nssv_noexcept // (4) +{ + return nonstd::sv_lite::wstring_view{ str, len }; +} + +#endif // nssv_CONFIG_USR_SV_OPERATOR + +}}} // namespace nonstd::literals::string_view_literals + +#endif + +// +// Extensions for std::string: +// + +#if nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS + +namespace nonstd { +namespace sv_lite { + +// Exclude MSVC 14 (19.00): it yields ambiguous to_string(): + +#if nssv_CPP11_OR_GREATER && nssv_COMPILER_MSVC_VERSION != 140 + +template< class CharT, class Traits, class Allocator = std::allocator > +std::basic_string +to_string( basic_string_view v, Allocator const & a = Allocator() ) +{ + return std::basic_string( v.begin(), v.end(), a ); +} + +#else + +template< class CharT, class Traits > +std::basic_string +to_string( basic_string_view v ) +{ + return std::basic_string( v.begin(), v.end() ); +} + +template< class CharT, class Traits, class Allocator > +std::basic_string +to_string( basic_string_view v, Allocator const & a ) +{ + return std::basic_string( v.begin(), v.end(), a ); +} + +#endif // nssv_CPP11_OR_GREATER + +template< class CharT, class Traits, class Allocator > +basic_string_view +to_string_view( std::basic_string const & s ) +{ + return basic_string_view( s.data(), s.size() ); +} + +}} // namespace nonstd::sv_lite + +#endif // nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS + +// +// make types and algorithms available in namespace nonstd: +// + +namespace nonstd { + +using sv_lite::basic_string_view; +using sv_lite::string_view; +using sv_lite::wstring_view; + +#if nssv_HAVE_WCHAR16_T +using sv_lite::u16string_view; +#endif +#if nssv_HAVE_WCHAR32_T +using sv_lite::u32string_view; +#endif + +// literal "sv" + +using sv_lite::operator==; +using sv_lite::operator!=; +using sv_lite::operator<; +using sv_lite::operator<=; +using sv_lite::operator>; +using sv_lite::operator>=; + +#if ! nssv_CONFIG_NO_STREAM_INSERTION +using sv_lite::operator<<; +#endif + +#if nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS +using sv_lite::to_string; +using sv_lite::to_string_view; +#endif + +} // namespace nonstd + +// 24.4.5 Hash support (C++11): + +// Note: The hash value of a string view object is equal to the hash value of +// the corresponding string object. + +#if nssv_HAVE_STD_HASH + +#include + +namespace std { + +template<> +struct hash< nonstd::string_view > +{ +public: + std::size_t operator()( nonstd::string_view v ) const nssv_noexcept + { + return std::hash()( std::string( v.data(), v.size() ) ); + } +}; + +template<> +struct hash< nonstd::wstring_view > +{ +public: + std::size_t operator()( nonstd::wstring_view v ) const nssv_noexcept + { + return std::hash()( std::wstring( v.data(), v.size() ) ); + } +}; + +template<> +struct hash< nonstd::u16string_view > +{ +public: + std::size_t operator()( nonstd::u16string_view v ) const nssv_noexcept + { + return std::hash()( std::u16string( v.data(), v.size() ) ); + } +}; + +template<> +struct hash< nonstd::u32string_view > +{ +public: + std::size_t operator()( nonstd::u32string_view v ) const nssv_noexcept + { + return std::hash()( std::u32string( v.data(), v.size() ) ); + } +}; + +} // namespace std + +#endif // nssv_HAVE_STD_HASH + +nssv_RESTORE_WARNINGS() + +#endif // nssv_HAVE_STD_STRING_VIEW +#endif // NONSTD_SV_LITE_H_INCLUDED +/* end file include/simdjson/nonstd/string_view.hpp */ +SIMDJSON_POP_DISABLE_WARNINGS + +namespace std { + using string_view = nonstd::string_view; +} +#endif // SIMDJSON_HAS_STRING_VIEW +#undef SIMDJSON_HAS_STRING_VIEW // We are not going to need this macro anymore. + +/// If EXPR is an error, returns it. +#define SIMDJSON_TRY(EXPR) { auto _err = (EXPR); if (_err) { return _err; } } + +// Unless the programmer has already set SIMDJSON_DEVELOPMENT_CHECKS, +// we want to set it under debug builds. We detect a debug build +// under Visual Studio when the _DEBUG macro is set. Under the other +// compilers, we use the fact that they define __OPTIMIZE__ whenever +// they allow optimizations. +// It is possible that this could miss some cases where SIMDJSON_DEVELOPMENT_CHECKS +// is helpful, but the programmer can set the macro SIMDJSON_DEVELOPMENT_CHECKS. +// It could also wrongly set SIMDJSON_DEVELOPMENT_CHECKS (e.g., if the programmer +// sets _DEBUG in a release build under Visual Studio, or if some compiler fails to +// set the __OPTIMIZE__ macro). +#ifndef SIMDJSON_DEVELOPMENT_CHECKS +#ifdef _MSC_VER +// Visual Studio seems to set _DEBUG for debug builds. +#ifdef _DEBUG +#define SIMDJSON_DEVELOPMENT_CHECKS 1 +#endif // _DEBUG +#else // _MSC_VER +// All other compilers appear to set __OPTIMIZE__ to a positive integer +// when the compiler is optimizing. +#ifndef __OPTIMIZE__ +#define SIMDJSON_DEVELOPMENT_CHECKS 1 +#endif // __OPTIMIZE__ +#endif // _MSC_VER +#endif // SIMDJSON_DEVELOPMENT_CHECKS + +// The SIMDJSON_CHECK_EOF macro is a feature flag for the "don't require padding" +// feature. + +#if SIMDJSON_CPLUSPLUS17 +// if we have C++, then fallthrough is a default attribute +# define simdjson_fallthrough [[fallthrough]] +// check if we have __attribute__ support +#elif defined(__has_attribute) +// check if we have the __fallthrough__ attribute +#if __has_attribute(__fallthrough__) +// we are good to go: +# define simdjson_fallthrough __attribute__((__fallthrough__)) +#endif // __has_attribute(__fallthrough__) +#endif // SIMDJSON_CPLUSPLUS17 +// on some systems, we simply do not have support for fallthrough, so use a default: +#ifndef simdjson_fallthrough +# define simdjson_fallthrough do {} while (0) /* fallthrough */ +#endif // simdjson_fallthrough + + +#if SIMDJSON_DEVELOPMENT_CHECKS +#define SIMDJSON_DEVELOPMENT_ASSERT(expr) do { assert ((expr)); } while (0) +#else +#define SIMDJSON_DEVELOPMENT_ASSERT(expr) do { } while (0) +#endif + +#ifndef SIMDJSON_UTF8VALIDATION +#define SIMDJSON_UTF8VALIDATION 1 +#endif + +#endif // SIMDJSON_COMMON_DEFS_H +/* end file include/simdjson/common_defs.h */ + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_UNDESIRED_WARNINGS + +// Public API +/* begin file include/simdjson/error.h */ +#ifndef SIMDJSON_ERROR_H +#define SIMDJSON_ERROR_H + +#include + +namespace simdjson { + +/** + * All possible errors returned by simdjson. These error codes are subject to change + * and not all simdjson kernel returns the same error code given the same input: it is not + * well defined which error a given input should produce. + * + * Only SUCCESS evaluates to false as a Boolean. All other error codes will evaluate + * to true as a Boolean. + */ +enum error_code { + SUCCESS = 0, ///< No error + CAPACITY, ///< This parser can't support a document that big + MEMALLOC, ///< Error allocating memory, most likely out of memory + TAPE_ERROR, ///< Something went wrong, this is a generic error + DEPTH_ERROR, ///< Your document exceeds the user-specified depth limitation + STRING_ERROR, ///< Problem while parsing a string + T_ATOM_ERROR, ///< Problem while parsing an atom starting with the letter 't' + F_ATOM_ERROR, ///< Problem while parsing an atom starting with the letter 'f' + N_ATOM_ERROR, ///< Problem while parsing an atom starting with the letter 'n' + NUMBER_ERROR, ///< Problem while parsing a number + UTF8_ERROR, ///< the input is not valid UTF-8 + UNINITIALIZED, ///< unknown error, or uninitialized document + EMPTY, ///< no structural element found + UNESCAPED_CHARS, ///< found unescaped characters in a string. + UNCLOSED_STRING, ///< missing quote at the end + UNSUPPORTED_ARCHITECTURE, ///< unsupported architecture + INCORRECT_TYPE, ///< JSON element has a different type than user expected + NUMBER_OUT_OF_RANGE, ///< JSON number does not fit in 64 bits + INDEX_OUT_OF_BOUNDS, ///< JSON array index too large + NO_SUCH_FIELD, ///< JSON field not found in object + IO_ERROR, ///< Error reading a file + INVALID_JSON_POINTER, ///< Invalid JSON pointer reference + INVALID_URI_FRAGMENT, ///< Invalid URI fragment + UNEXPECTED_ERROR, ///< indicative of a bug in simdjson + PARSER_IN_USE, ///< parser is already in use. + OUT_OF_ORDER_ITERATION, ///< tried to iterate an array or object out of order + INSUFFICIENT_PADDING, ///< The JSON doesn't have enough padding for simdjson to safely parse it. + INCOMPLETE_ARRAY_OR_OBJECT, ///< The document ends early. + SCALAR_DOCUMENT_AS_VALUE, ///< A scalar document is treated as a value. + OUT_OF_BOUNDS, ///< Attempted to access location outside of document. + TRAILING_CONTENT, ///< Unexpected trailing content in the JSON input + NUM_ERROR_CODES +}; + +/** + * Get the error message for the given error code. + * + * dom::parser parser; + * dom::element doc; + * auto error = parser.parse("foo",3).get(doc); + * if (error) { printf("Error: %s\n", error_message(error)); } + * + * @return The error message. + */ +inline const char *error_message(error_code error) noexcept; + +/** + * Write the error message to the output stream + */ +inline std::ostream& operator<<(std::ostream& out, error_code error) noexcept; + +/** + * Exception thrown when an exception-supporting simdjson method is called + */ +struct simdjson_error : public std::exception { + /** + * Create an exception from a simdjson error code. + * @param error The error code + */ + simdjson_error(error_code error) noexcept : _error{error} { } + /** The error message */ + const char *what() const noexcept { return error_message(error()); } + /** The error code */ + error_code error() const noexcept { return _error; } +private: + /** The error code that was used */ + error_code _error; +}; + +namespace internal { + +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::simdjson_result_base { + * simdjson_result() noexcept : internal::simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct simdjson_result_base : protected std::pair { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline simdjson_result_base() noexcept; + + /** + * Create a new error result. + */ + simdjson_inline simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; + +}; // struct simdjson_result_base + +} // namespace internal + +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + */ +template +struct simdjson_result : public internal::simdjson_result_base { + /** + * @private Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline simdjson_result() noexcept; + /** + * @private Create a new error result. + */ + simdjson_inline simdjson_result(T &&value) noexcept; + /** + * @private Create a new successful result. + */ + simdjson_inline simdjson_result(error_code error_code) noexcept; + /** + * @private Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline simdjson_result(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_warn_unused simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; + +}; // struct simdjson_result + +#if SIMDJSON_EXCEPTIONS + +template +inline std::ostream& operator<<(std::ostream& out, simdjson_result value) { return out << value.value(); } +#endif // SIMDJSON_EXCEPTIONS + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +/** + * @deprecated This is an alias and will be removed, use error_code instead + */ +using ErrorValues [[deprecated("This is an alias and will be removed, use error_code instead")]] = error_code; + +/** + * @deprecated Error codes should be stored and returned as `error_code`, use `error_message()` instead. + */ +[[deprecated("Error codes should be stored and returned as `error_code`, use `error_message()` instead.")]] +inline const std::string error_message(int error) noexcept; +#endif // SIMDJSON_DISABLE_DEPRECATED_API +} // namespace simdjson + +#endif // SIMDJSON_ERROR_H +/* end file include/simdjson/error.h */ +/* begin file include/simdjson/minify.h */ +#ifndef SIMDJSON_MINIFY_H +#define SIMDJSON_MINIFY_H + +/* begin file include/simdjson/padded_string.h */ +#ifndef SIMDJSON_PADDED_STRING_H +#define SIMDJSON_PADDED_STRING_H + +#include +#include +#include +#include + +namespace simdjson { + +class padded_string_view; + +/** + * String with extra allocation for ease of use with parser::parse() + * + * This is a move-only class, it cannot be copied. + */ +struct padded_string final { + + /** + * Create a new, empty padded string. + */ + explicit inline padded_string() noexcept; + /** + * Create a new padded string buffer. + * + * @param length the size of the string. + */ + explicit inline padded_string(size_t length) noexcept; + /** + * Create a new padded string by copying the given input. + * + * @param data the buffer to copy + * @param length the number of bytes to copy + */ + explicit inline padded_string(const char *data, size_t length) noexcept; + /** + * Create a new padded string by copying the given input. + * + * @param str_ the string to copy + */ + inline padded_string(const std::string & str_ ) noexcept; + /** + * Create a new padded string by copying the given input. + * + * @param sv_ the string to copy + */ + inline padded_string(std::string_view sv_) noexcept; + /** + * Move one padded string into another. + * + * The original padded string will be reduced to zero capacity. + * + * @param o the string to move. + */ + inline padded_string(padded_string &&o) noexcept; + /** + * Move one padded string into another. + * + * The original padded string will be reduced to zero capacity. + * + * @param o the string to move. + */ + inline padded_string &operator=(padded_string &&o) noexcept; + inline void swap(padded_string &o) noexcept; + ~padded_string() noexcept; + + /** + * The length of the string. + * + * Does not include padding. + */ + size_t size() const noexcept; + + /** + * The length of the string. + * + * Does not include padding. + */ + size_t length() const noexcept; + + /** + * The string data. + **/ + const char *data() const noexcept; + const uint8_t *u8data() const noexcept { return static_cast(static_cast(data_ptr));} + + /** + * The string data. + **/ + char *data() noexcept; + + /** + * Create a std::string_view with the same content. + */ + operator std::string_view() const; + + /** + * Create a padded_string_view with the same content. + */ + operator padded_string_view() const noexcept; + + /** + * Load this padded string from a file. + * + * @return IO_ERROR on error. Be mindful that on some 32-bit systems, + * the file size might be limited to 2 GB. + * + * @param path the path to the file. + **/ + inline static simdjson_result load(std::string_view path) noexcept; + +private: + padded_string &operator=(const padded_string &o) = delete; + padded_string(const padded_string &o) = delete; + + size_t viable_size{0}; + char *data_ptr{nullptr}; + +}; // padded_string + +/** + * Send padded_string instance to an output stream. + * + * @param out The output stream. + * @param s The padded_string instance. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, const padded_string& s) { return out << s.data(); } + +#if SIMDJSON_EXCEPTIONS +/** + * Send padded_string instance to an output stream. + * + * @param out The output stream. + * @param s The padded_string instance. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &s) noexcept(false) { return out << s.value(); } +#endif + +} // namespace simdjson + +// This is deliberately outside of simdjson so that people get it without having to use the namespace +inline simdjson::padded_string operator "" _padded(const char *str, size_t len) { + return simdjson::padded_string(str, len); +} + +namespace simdjson { +namespace internal { + +// The allocate_padded_buffer function is a low-level function to allocate memory +// with padding so we can read past the "length" bytes safely. It is used by +// the padded_string class automatically. It returns nullptr in case +// of error: the caller should check for a null pointer. +// The length parameter is the maximum size in bytes of the string. +// The caller is responsible to free the memory (e.g., delete[] (...)). +inline char *allocate_padded_buffer(size_t length) noexcept; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_PADDED_STRING_H +/* end file include/simdjson/padded_string.h */ +#include +#include +#include + +namespace simdjson { + + + +/** + * + * Minify the input string assuming that it represents a JSON string, does not parse or validate. + * This function is much faster than parsing a JSON string and then writing a minified version of it. + * However, it does not validate the input. It will merely return an error in simple cases (e.g., if + * there is a string that was never terminated). + * + * + * @param buf the json document to minify. + * @param len the length of the json document. + * @param dst the buffer to write the minified document to. *MUST* be allocated up to len bytes. + * @param dst_len the number of bytes written. Output only. + * @return the error code, or SUCCESS if there was no error. + */ +simdjson_warn_unused error_code minify(const char *buf, size_t len, char *dst, size_t &dst_len) noexcept; + +} // namespace simdjson + +#endif // SIMDJSON_MINIFY_H +/* end file include/simdjson/minify.h */ +/* begin file include/simdjson/padded_string_view.h */ +#ifndef SIMDJSON_PADDED_STRING_VIEW_H +#define SIMDJSON_PADDED_STRING_VIEW_H + + +#include +#include +#include +#include + +namespace simdjson { + +/** + * User-provided string that promises it has extra padded bytes at the end for use with parser::parse(). + */ +class padded_string_view : public std::string_view { +private: + size_t _capacity; + +public: + /** Create an empty padded_string_view. */ + inline padded_string_view() noexcept = default; + + /** + * Promise the given buffer has at least SIMDJSON_PADDING extra bytes allocated to it. + * + * @param s The string. + * @param len The length of the string (not including padding). + * @param capacity The allocated length of the string, including padding. + */ + explicit inline padded_string_view(const char* s, size_t len, size_t capacity) noexcept; + /** overload explicit inline padded_string_view(const char* s, size_t len) noexcept */ + explicit inline padded_string_view(const uint8_t* s, size_t len, size_t capacity) noexcept; + + /** + * Promise the given string has at least SIMDJSON_PADDING extra bytes allocated to it. + * + * The capacity of the string will be used to determine its padding. + * + * @param s The string. + */ + explicit inline padded_string_view(const std::string &s) noexcept; + + /** + * Promise the given string_view has at least SIMDJSON_PADDING extra bytes allocated to it. + * + * @param s The string. + * @param capacity The allocated length of the string, including padding. + */ + explicit inline padded_string_view(std::string_view s, size_t capacity) noexcept; + + /** The number of allocated bytes. */ + inline size_t capacity() const noexcept; + + /** The amount of padding on the string (capacity() - length()) */ + inline size_t padding() const noexcept; + +}; // padded_string_view + +#if SIMDJSON_EXCEPTIONS +/** + * Send padded_string instance to an output stream. + * + * @param out The output stream. + * @param s The padded_string_view. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &s) noexcept(false) { return out << s.value(); } +#endif + +} // namespace simdjson + +#endif // SIMDJSON_PADDED_STRING_VIEW_H +/* end file include/simdjson/padded_string_view.h */ +/* begin file include/simdjson/implementation.h */ +#ifndef SIMDJSON_IMPLEMENTATION_H +#define SIMDJSON_IMPLEMENTATION_H + +/* begin file include/simdjson/internal/dom_parser_implementation.h */ +#ifndef SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H +#define SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H + +#include + +namespace simdjson { + +namespace dom { +class document; +} // namespace dom + +/** +* This enum is used with the dom_parser_implementation::stage1 function. +* 1) The regular mode expects a fully formed JSON document. +* 2) The streaming_partial mode expects a possibly truncated +* input within a stream on JSON documents. +* 3) The stream_final mode allows us to truncate final +* unterminated strings. It is useful in conjunction with streaming_partial. +*/ +enum class stage1_mode { regular, streaming_partial, streaming_final}; + +/** + * Returns true if mode == streaming_partial or mode == streaming_final + */ +inline bool is_streaming(stage1_mode mode) { + // performance note: it is probably faster to check that mode is different + // from regular than checking that it is either streaming_partial or streaming_final. + return (mode != stage1_mode::regular); + // return (mode == stage1_mode::streaming_partial || mode == stage1_mode::streaming_final); +} + + +namespace internal { + + +/** + * An implementation of simdjson's DOM parser for a particular CPU architecture. + * + * This class is expected to be accessed only by pointer, and never move in memory (though the + * pointer can move). + */ +class dom_parser_implementation { +public: + + /** + * @private For internal implementation use + * + * Run a full JSON parse on a single document (stage1 + stage2). + * + * Guaranteed only to be called when capacity > document length. + * + * Overridden by each implementation. + * + * @param buf The json document to parse. *MUST* be allocated up to len + SIMDJSON_PADDING bytes. + * @param len The length of the json document. + * @return The error code, or SUCCESS if there was no error. + */ + simdjson_warn_unused virtual error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept = 0; + + /** + * @private For internal implementation use + * + * Stage 1 of the document parser. + * + * Guaranteed only to be called when capacity > document length. + * + * Overridden by each implementation. + * + * @param buf The json document to parse. + * @param len The length of the json document. + * @param streaming Whether this is being called by parser::parse_many. + * @return The error code, or SUCCESS if there was no error. + */ + simdjson_warn_unused virtual error_code stage1(const uint8_t *buf, size_t len, stage1_mode streaming) noexcept = 0; + + /** + * @private For internal implementation use + * + * Stage 2 of the document parser. + * + * Called after stage1(). + * + * Overridden by each implementation. + * + * @param doc The document to output to. + * @return The error code, or SUCCESS if there was no error. + */ + simdjson_warn_unused virtual error_code stage2(dom::document &doc) noexcept = 0; + + /** + * @private For internal implementation use + * + * Stage 2 of the document parser for parser::parse_many. + * + * Guaranteed only to be called after stage1(). + * Overridden by each implementation. + * + * @param doc The document to output to. + * @return The error code, SUCCESS if there was no error, or EMPTY if all documents have been parsed. + */ + simdjson_warn_unused virtual error_code stage2_next(dom::document &doc) noexcept = 0; + + /** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + * + * Overridden by each implementation. + * + * @param str pointer to the beginning of a valid UTF-8 JSON string, must end with an unescaped quote. + * @param dst pointer to a destination buffer, it must point a region in memory of sufficient size. + * @param allow_replacement whether we allow a replacement character when the UTF-8 contains unmatched surrogate pairs. + * @return end of the of the written region (exclusive) or nullptr in case of error. + */ + simdjson_warn_unused virtual uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept = 0; + + /** + * Unescape a NON-valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + * + * Overridden by each implementation. + * + * @param str pointer to the beginning of a possibly invalid UTF-8 JSON string, must end with an unescaped quote. + * @param dst pointer to a destination buffer, it must point a region in memory of sufficient size. + * @return end of the of the written region (exclusive) or nullptr in case of error. + */ + simdjson_warn_unused virtual uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept = 0; + + /** + * Change the capacity of this parser. + * + * The capacity can never exceed SIMDJSON_MAXSIZE_BYTES (e.g., 4 GB) + * and an CAPACITY error is returned if it is attempted. + * + * Generally used for reallocation. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. + * @return The error code, or SUCCESS if there was no error. + */ + virtual error_code set_capacity(size_t capacity) noexcept = 0; + + /** + * Change the max depth of this parser. + * + * Generally used for reallocation. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. + * @return The error code, or SUCCESS if there was no error. + */ + virtual error_code set_max_depth(size_t max_depth) noexcept = 0; + + /** + * Deallocate this parser. + */ + virtual ~dom_parser_implementation() = default; + + /** Number of structural indices passed from stage 1 to stage 2 */ + uint32_t n_structural_indexes{0}; + /** Structural indices passed from stage 1 to stage 2 */ + std::unique_ptr structural_indexes{}; + /** Next structural index to parse */ + uint32_t next_structural_index{0}; + + /** + * The largest document this parser can support without reallocating. + * + * @return Current capacity, in bytes. + */ + simdjson_inline size_t capacity() const noexcept; + + /** + * The maximum level of nested object and arrays supported by this parser. + * + * @return Maximum depth, in bytes. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused inline error_code allocate(size_t capacity, size_t max_depth) noexcept; + + +protected: + /** + * The maximum document length this parser supports. + * + * Buffers are large enough to handle any document up to this length. + */ + size_t _capacity{0}; + + /** + * The maximum depth (number of nested objects and arrays) supported by this parser. + * + * Defaults to DEFAULT_MAX_DEPTH. + */ + size_t _max_depth{0}; + + // Declaring these so that subclasses can use them to implement their constructors. + simdjson_inline dom_parser_implementation() noexcept; + simdjson_inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + simdjson_inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + + simdjson_inline dom_parser_implementation(const dom_parser_implementation &) noexcept = delete; + simdjson_inline dom_parser_implementation &operator=(const dom_parser_implementation &other) noexcept = delete; +}; // class dom_parser_implementation + +simdjson_inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +simdjson_inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +simdjson_inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +simdjson_inline size_t dom_parser_implementation::capacity() const noexcept { + return _capacity; +} + +simdjson_inline size_t dom_parser_implementation::max_depth() const noexcept { + return _max_depth; +} + +simdjson_warn_unused +inline error_code dom_parser_implementation::allocate(size_t capacity, size_t max_depth) noexcept { + if (this->max_depth() != max_depth) { + error_code err = set_max_depth(max_depth); + if (err) { return err; } + } + if (_capacity != capacity) { + error_code err = set_capacity(capacity); + if (err) { return err; } + } + return SUCCESS; +} + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H +/* end file include/simdjson/internal/dom_parser_implementation.h */ +/* begin file include/simdjson/internal/isadetection.h */ +/* From +https://github.com/endorno/pytorch/blob/master/torch/lib/TH/generic/simd/simd.h +Highly modified. + +Copyright (c) 2016- Facebook, Inc (Adam Paszke) +Copyright (c) 2014- Facebook, Inc (Soumith Chintala) +Copyright (c) 2011-2014 Idiap Research Institute (Ronan Collobert) +Copyright (c) 2012-2014 Deepmind Technologies (Koray Kavukcuoglu) +Copyright (c) 2011-2012 NEC Laboratories America (Koray Kavukcuoglu) +Copyright (c) 2011-2013 NYU (Clement Farabet) +Copyright (c) 2006-2010 NEC Laboratories America (Ronan Collobert, Leon Bottou, +Iain Melvin, Jason Weston) Copyright (c) 2006 Idiap Research Institute +(Samy Bengio) Copyright (c) 2001-2004 Idiap Research Institute (Ronan Collobert, +Samy Bengio, Johnny Mariethoz) + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +3. Neither the names of Facebook, Deepmind Technologies, NYU, NEC Laboratories +America and IDIAP Research Institute nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef SIMDJSON_INTERNAL_ISADETECTION_H +#define SIMDJSON_INTERNAL_ISADETECTION_H + +#include +#include +#if defined(_MSC_VER) +#include +#elif defined(HAVE_GCC_GET_CPUID) && defined(USE_GCC_GET_CPUID) +#include +#endif + +namespace simdjson { +namespace internal { + +enum instruction_set { + DEFAULT = 0x0, + NEON = 0x1, + AVX2 = 0x4, + SSE42 = 0x8, + PCLMULQDQ = 0x10, + BMI1 = 0x20, + BMI2 = 0x40, + ALTIVEC = 0x80, + AVX512F = 0x100, + AVX512DQ = 0x200, + AVX512IFMA = 0x400, + AVX512PF = 0x800, + AVX512ER = 0x1000, + AVX512CD = 0x2000, + AVX512BW = 0x4000, + AVX512VL = 0x8000, + AVX512VBMI2 = 0x10000 +}; + +#if defined(__PPC64__) + +static inline uint32_t detect_supported_architectures() { + return instruction_set::ALTIVEC; +} + +#elif defined(__aarch64__) || defined(_M_ARM64) + +static inline uint32_t detect_supported_architectures() { + return instruction_set::NEON; +} + +#elif defined(__x86_64__) || defined(_M_AMD64) // x64 + + +namespace { +// Can be found on Intel ISA Reference for CPUID +constexpr uint32_t cpuid_avx2_bit = 1 << 5; ///< @private Bit 5 of EBX for EAX=0x7 +constexpr uint32_t cpuid_bmi1_bit = 1 << 3; ///< @private bit 3 of EBX for EAX=0x7 +constexpr uint32_t cpuid_bmi2_bit = 1 << 8; ///< @private bit 8 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512f_bit = 1 << 16; ///< @private bit 16 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512dq_bit = 1 << 17; ///< @private bit 17 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512ifma_bit = 1 << 21; ///< @private bit 21 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512pf_bit = 1 << 26; ///< @private bit 26 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512er_bit = 1 << 27; ///< @private bit 27 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512cd_bit = 1 << 28; ///< @private bit 28 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512bw_bit = 1 << 30; ///< @private bit 30 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512vl_bit = 1U << 31; ///< @private bit 31 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512vbmi2_bit = 1 << 6; ///< @private bit 6 of ECX for EAX=0x7 +constexpr uint64_t cpuid_avx256_saved = uint64_t(1) << 2; ///< @private bit 2 = AVX +constexpr uint64_t cpuid_avx512_saved = uint64_t(7) << 5; ///< @private bits 5,6,7 = opmask, ZMM_hi256, hi16_ZMM +constexpr uint32_t cpuid_sse42_bit = 1 << 20; ///< @private bit 20 of ECX for EAX=0x1 +constexpr uint32_t cpuid_osxsave = (uint32_t(1) << 26) | (uint32_t(1) << 27); ///< @private bits 26+27 of ECX for EAX=0x1 +constexpr uint32_t cpuid_pclmulqdq_bit = 1 << 1; ///< @private bit 1 of ECX for EAX=0x1 +} + + + +static inline void cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, + uint32_t *edx) { +#if defined(_MSC_VER) + int cpu_info[4]; + __cpuidex(cpu_info, *eax, *ecx); + *eax = cpu_info[0]; + *ebx = cpu_info[1]; + *ecx = cpu_info[2]; + *edx = cpu_info[3]; +#elif defined(HAVE_GCC_GET_CPUID) && defined(USE_GCC_GET_CPUID) + uint32_t level = *eax; + __get_cpuid(level, eax, ebx, ecx, edx); +#else + uint32_t a = *eax, b, c = *ecx, d; + asm volatile("cpuid\n\t" : "+a"(a), "=b"(b), "+c"(c), "=d"(d)); + *eax = a; + *ebx = b; + *ecx = c; + *edx = d; +#endif +} + + +static inline uint64_t xgetbv() { +#if defined(_MSC_VER) + return _xgetbv(0); +#else + uint32_t xcr0_lo, xcr0_hi; + asm volatile("xgetbv\n\t" : "=a" (xcr0_lo), "=d" (xcr0_hi) : "c" (0)); + return xcr0_lo | (uint64_t(xcr0_hi) << 32); +#endif +} + +static inline uint32_t detect_supported_architectures() { + uint32_t eax, ebx, ecx, edx; + uint32_t host_isa = 0x0; + + // EBX for EAX=0x1 + eax = 0x1; + ecx = 0x0; + cpuid(&eax, &ebx, &ecx, &edx); + + if (ecx & cpuid_sse42_bit) { + host_isa |= instruction_set::SSE42; + } else { + return host_isa; // everything after is redundant + } + + if (ecx & cpuid_pclmulqdq_bit) { + host_isa |= instruction_set::PCLMULQDQ; + } + + + if ((ecx & cpuid_osxsave) != cpuid_osxsave) { + return host_isa; + } + + // xgetbv for checking if the OS saves registers + uint64_t xcr0 = xgetbv(); + + if ((xcr0 & cpuid_avx256_saved) == 0) { + return host_isa; + } + + // ECX for EAX=0x7 + eax = 0x7; + ecx = 0x0; + cpuid(&eax, &ebx, &ecx, &edx); + if (ebx & cpuid_avx2_bit) { + host_isa |= instruction_set::AVX2; + } + if (ebx & cpuid_bmi1_bit) { + host_isa |= instruction_set::BMI1; + } + + if (ebx & cpuid_bmi2_bit) { + host_isa |= instruction_set::BMI2; + } + + if (!((xcr0 & cpuid_avx512_saved) == cpuid_avx512_saved)) { + return host_isa; + } + + if (ebx & cpuid_avx512f_bit) { + host_isa |= instruction_set::AVX512F; + } + + if (ebx & cpuid_avx512dq_bit) { + host_isa |= instruction_set::AVX512DQ; + } + + if (ebx & cpuid_avx512ifma_bit) { + host_isa |= instruction_set::AVX512IFMA; + } + + if (ebx & cpuid_avx512pf_bit) { + host_isa |= instruction_set::AVX512PF; + } + + if (ebx & cpuid_avx512er_bit) { + host_isa |= instruction_set::AVX512ER; + } + + if (ebx & cpuid_avx512cd_bit) { + host_isa |= instruction_set::AVX512CD; + } + + if (ebx & cpuid_avx512bw_bit) { + host_isa |= instruction_set::AVX512BW; + } + + if (ebx & cpuid_avx512vl_bit) { + host_isa |= instruction_set::AVX512VL; + } + + if (ecx & cpuid_avx512vbmi2_bit) { + host_isa |= instruction_set::AVX512VBMI2; + } + + return host_isa; +} +#else // fallback + + +static inline uint32_t detect_supported_architectures() { + return instruction_set::DEFAULT; +} + + +#endif // end SIMD extension detection code + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_ISADETECTION_H +/* end file include/simdjson/internal/isadetection.h */ +#include +#include +#include + +namespace simdjson { + +/** + * Validate the UTF-8 string. + * + * @param buf the string to validate. + * @param len the length of the string in bytes. + * @return true if the string is valid UTF-8. + */ +simdjson_warn_unused bool validate_utf8(const char * buf, size_t len) noexcept; +/** + * Validate the UTF-8 string. + * + * @param sv the string_view to validate. + * @return true if the string is valid UTF-8. + */ +simdjson_inline simdjson_warn_unused bool validate_utf8(const std::string_view sv) noexcept { + return validate_utf8(sv.data(), sv.size()); +} + +/** + * Validate the UTF-8 string. + * + * @param p the string to validate. + * @return true if the string is valid UTF-8. + */ +simdjson_inline simdjson_warn_unused bool validate_utf8(const std::string& s) noexcept { + return validate_utf8(s.data(), s.size()); +} + +namespace dom { + class document; +} // namespace dom + +/** + * An implementation of simdjson for a particular CPU architecture. + * + * Also used to maintain the currently active implementation. The active implementation is + * automatically initialized on first use to the most advanced implementation supported by the host. + */ +class implementation { +public: + + /** + * The name of this implementation. + * + * const implementation *impl = simdjson::get_active_implementation(); + * cout << "simdjson is optimized for " << impl->name() << "(" << impl->description() << ")" << endl; + * + * @return the name of the implementation, e.g. "haswell", "westmere", "arm64". + */ + virtual const std::string &name() const { return _name; } + + /** + * The description of this implementation. + * + * const implementation *impl = simdjson::get_active_implementation(); + * cout << "simdjson is optimized for " << impl->name() << "(" << impl->description() << ")" << endl; + * + * @return the description of the implementation, e.g. "Intel/AMD AVX2", "Intel/AMD SSE4.2", "ARM NEON". + */ + virtual const std::string &description() const { return _description; } + + /** + * The instruction sets this implementation is compiled against + * and the current CPU match. This function may poll the current CPU/system + * and should therefore not be called too often if performance is a concern. + * + * @return true if the implementation can be safely used on the current system (determined at runtime). + */ + bool supported_by_runtime_system() const; + + /** + * @private For internal implementation use + * + * The instruction sets this implementation is compiled against. + * + * @return a mask of all required `internal::instruction_set::` values. + */ + virtual uint32_t required_instruction_sets() const { return _required_instruction_sets; } + + /** + * @private For internal implementation use + * + * const implementation *impl = simdjson::get_active_implementation(); + * cout << "simdjson is optimized for " << impl->name() << "(" << impl->description() << ")" << endl; + * + * @param capacity The largest document that will be passed to the parser. + * @param max_depth The maximum JSON object/array nesting this parser is expected to handle. + * @param dst The place to put the resulting parser implementation. + * @return the error code, or SUCCESS if there was no error. + */ + virtual error_code create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr &dst + ) const noexcept = 0; + + /** + * @private For internal implementation use + * + * Minify the input string assuming that it represents a JSON string, does not parse or validate. + * + * Overridden by each implementation. + * + * @param buf the json document to minify. + * @param len the length of the json document. + * @param dst the buffer to write the minified document to. *MUST* be allocated up to len + SIMDJSON_PADDING bytes. + * @param dst_len the number of bytes written. Output only. + * @return the error code, or SUCCESS if there was no error. + */ + simdjson_warn_unused virtual error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept = 0; + + + /** + * Validate the UTF-8 string. + * + * Overridden by each implementation. + * + * @param buf the string to validate. + * @param len the length of the string in bytes. + * @return true if and only if the string is valid UTF-8. + */ + simdjson_warn_unused virtual bool validate_utf8(const char *buf, size_t len) const noexcept = 0; + +protected: + /** @private Construct an implementation with the given name and description. For subclasses. */ + simdjson_inline implementation( + std::string_view name, + std::string_view description, + uint32_t required_instruction_sets + ) : + _name(name), + _description(description), + _required_instruction_sets(required_instruction_sets) + { + } + virtual ~implementation()=default; + +private: + /** + * The name of this implementation. + */ + const std::string _name; + + /** + * The description of this implementation. + */ + const std::string _description; + + /** + * Instruction sets required for this implementation. + */ + const uint32_t _required_instruction_sets; +}; + +/** @private */ +namespace internal { + +/** + * The list of available implementations compiled into simdjson. + */ +class available_implementation_list { +public: + /** Get the list of available implementations compiled into simdjson */ + simdjson_inline available_implementation_list() {} + /** Number of implementations */ + size_t size() const noexcept; + /** STL const begin() iterator */ + const implementation * const *begin() const noexcept; + /** STL const end() iterator */ + const implementation * const *end() const noexcept; + + /** + * Get the implementation with the given name. + * + * Case sensitive. + * + * const implementation *impl = simdjson::get_available_implementations()["westmere"]; + * if (!impl) { exit(1); } + * if (!imp->supported_by_runtime_system()) { exit(1); } + * simdjson::get_active_implementation() = impl; + * + * @param name the implementation to find, e.g. "westmere", "haswell", "arm64" + * @return the implementation, or nullptr if the parse failed. + */ + const implementation * operator[](const std::string_view &name) const noexcept { + for (const implementation * impl : *this) { + if (impl->name() == name) { return impl; } + } + return nullptr; + } + + /** + * Detect the most advanced implementation supported by the current host. + * + * This is used to initialize the implementation on startup. + * + * const implementation *impl = simdjson::available_implementation::detect_best_supported(); + * simdjson::get_active_implementation() = impl; + * + * @return the most advanced supported implementation for the current host, or an + * implementation that returns UNSUPPORTED_ARCHITECTURE if there is no supported + * implementation. Will never return nullptr. + */ + const implementation *detect_best_supported() const noexcept; +}; + +template +class atomic_ptr { +public: + atomic_ptr(T *_ptr) : ptr{_ptr} {} + + operator const T*() const { return ptr.load(); } + const T& operator*() const { return *ptr; } + const T* operator->() const { return ptr.load(); } + + operator T*() { return ptr.load(); } + T& operator*() { return *ptr; } + T* operator->() { return ptr.load(); } + atomic_ptr& operator=(T *_ptr) { ptr = _ptr; return *this; } + +private: + std::atomic ptr; +}; + +} // namespace internal + +/** + * The list of available implementations compiled into simdjson. + */ +extern SIMDJSON_DLLIMPORTEXPORT const internal::available_implementation_list& get_available_implementations(); + +/** + * The active implementation. + * + * Automatically initialized on first use to the most advanced implementation supported by this hardware. + */ +extern SIMDJSON_DLLIMPORTEXPORT internal::atomic_ptr& get_active_implementation(); + +} // namespace simdjson + +#endif // SIMDJSON_IMPLEMENTATION_H +/* end file include/simdjson/implementation.h */ + +// Inline functions +/* begin file include/simdjson/error-inl.h */ +#ifndef SIMDJSON_INLINE_ERROR_H +#define SIMDJSON_INLINE_ERROR_H + +#include +#include +#include + +namespace simdjson { +namespace internal { + // We store the error code so we can validate the error message is associated with the right code + struct error_code_info { + error_code code; + const char* message; // do not use a fancy std::string where a simple C string will do (no alloc, no destructor) + }; + // These MUST match the codes in error_code. We check this constraint in basictests. + extern SIMDJSON_DLLIMPORTEXPORT const error_code_info error_codes[]; +} // namespace internal + + +inline const char *error_message(error_code error) noexcept { + // If you're using error_code, we're trusting you got it from the enum. + return internal::error_codes[int(error)].message; +} + +// deprecated function +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +inline const std::string error_message(int error) noexcept { + if (error < 0 || error >= error_code::NUM_ERROR_CODES) { + return internal::error_codes[UNEXPECTED_ERROR].message; + } + return internal::error_codes[error].message; +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API + +inline std::ostream& operator<<(std::ostream& out, error_code error) noexcept { + return out << error_message(error); +} + +namespace internal { + +// +// internal::simdjson_result_base inline implementation +// + +template +simdjson_inline void simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T&& simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline simdjson_result_base::simdjson_result_base(T &&value, error_code error) noexcept + : std::pair(std::forward(value), error) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base(error_code error) noexcept + : simdjson_result_base(T{}, error) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base(T &&value) noexcept + : simdjson_result_base(std::forward(value), SUCCESS) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base() noexcept + : simdjson_result_base(T{}, UNINITIALIZED) {} + +} // namespace internal + +/// +/// simdjson_result inline implementation +/// + +template +simdjson_inline void simdjson_result::tie(T &value, error_code &error) && noexcept { + std::forward>(*this).tie(value, error); +} + +template +simdjson_warn_unused simdjson_inline error_code simdjson_result::get(T &value) && noexcept { + return std::forward>(*this).get(value); +} + +template +simdjson_inline error_code simdjson_result::error() const noexcept { + return internal::simdjson_result_base::error(); +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& simdjson_result::value() & noexcept(false) { + return internal::simdjson_result_base::value(); +} + +template +simdjson_inline T&& simdjson_result::value() && noexcept(false) { + return std::forward>(*this).value(); +} + +template +simdjson_inline T&& simdjson_result::take_value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline simdjson_result::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& simdjson_result::value_unsafe() const& noexcept { + return internal::simdjson_result_base::value_unsafe(); +} + +template +simdjson_inline T&& simdjson_result::value_unsafe() && noexcept { + return std::forward>(*this).value_unsafe(); +} + +template +simdjson_inline simdjson_result::simdjson_result(T &&value, error_code error) noexcept + : internal::simdjson_result_base(std::forward(value), error) {} +template +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : internal::simdjson_result_base(error) {} +template +simdjson_inline simdjson_result::simdjson_result(T &&value) noexcept + : internal::simdjson_result_base(std::forward(value)) {} +template +simdjson_inline simdjson_result::simdjson_result() noexcept + : internal::simdjson_result_base() {} + +} // namespace simdjson + +#endif // SIMDJSON_INLINE_ERROR_H +/* end file include/simdjson/error-inl.h */ +/* begin file include/simdjson/padded_string-inl.h */ +#ifndef SIMDJSON_INLINE_PADDED_STRING_H +#define SIMDJSON_INLINE_PADDED_STRING_H + + +#include +#include +#include +#include + +namespace simdjson { +namespace internal { + +// The allocate_padded_buffer function is a low-level function to allocate memory +// with padding so we can read past the "length" bytes safely. It is used by +// the padded_string class automatically. It returns nullptr in case +// of error: the caller should check for a null pointer. +// The length parameter is the maximum size in bytes of the string. +// The caller is responsible to free the memory (e.g., delete[] (...)). +inline char *allocate_padded_buffer(size_t length) noexcept { + const size_t totalpaddedlength = length + SIMDJSON_PADDING; + if(totalpaddedlength(1UL<<20)) { + return nullptr; + } +#endif + + char *padded_buffer = new (std::nothrow) char[totalpaddedlength]; + if (padded_buffer == nullptr) { + return nullptr; + } + // We write nulls in the padded region to avoid having uninitialized + // content which may trigger warning for some sanitizers + std::memset(padded_buffer + length, 0, totalpaddedlength - length); + return padded_buffer; +} // allocate_padded_buffer() + +} // namespace internal + + +inline padded_string::padded_string() noexcept = default; +inline padded_string::padded_string(size_t length) noexcept + : viable_size(length), data_ptr(internal::allocate_padded_buffer(length)) { +} +inline padded_string::padded_string(const char *data, size_t length) noexcept + : viable_size(length), data_ptr(internal::allocate_padded_buffer(length)) { + if ((data != nullptr) && (data_ptr != nullptr)) { + std::memcpy(data_ptr, data, length); + } +} +// note: do not pass std::string arguments by value +inline padded_string::padded_string(const std::string & str_ ) noexcept + : viable_size(str_.size()), data_ptr(internal::allocate_padded_buffer(str_.size())) { + if (data_ptr != nullptr) { + std::memcpy(data_ptr, str_.data(), str_.size()); + } +} +// note: do pass std::string_view arguments by value +inline padded_string::padded_string(std::string_view sv_) noexcept + : viable_size(sv_.size()), data_ptr(internal::allocate_padded_buffer(sv_.size())) { + if(simdjson_unlikely(!data_ptr)) { + //allocation failed or zero size + viable_size = 0; + return; + } + if (sv_.size()) { + std::memcpy(data_ptr, sv_.data(), sv_.size()); + } +} +inline padded_string::padded_string(padded_string &&o) noexcept + : viable_size(o.viable_size), data_ptr(o.data_ptr) { + o.data_ptr = nullptr; // we take ownership +} + +inline padded_string &padded_string::operator=(padded_string &&o) noexcept { + delete[] data_ptr; + data_ptr = o.data_ptr; + viable_size = o.viable_size; + o.data_ptr = nullptr; // we take ownership + o.viable_size = 0; + return *this; +} + +inline void padded_string::swap(padded_string &o) noexcept { + size_t tmp_viable_size = viable_size; + char *tmp_data_ptr = data_ptr; + viable_size = o.viable_size; + data_ptr = o.data_ptr; + o.data_ptr = tmp_data_ptr; + o.viable_size = tmp_viable_size; +} + +inline padded_string::~padded_string() noexcept { + delete[] data_ptr; +} + +inline size_t padded_string::size() const noexcept { return viable_size; } + +inline size_t padded_string::length() const noexcept { return viable_size; } + +inline const char *padded_string::data() const noexcept { return data_ptr; } + +inline char *padded_string::data() noexcept { return data_ptr; } + +inline padded_string::operator std::string_view() const { return std::string_view(data(), length()); } + +inline padded_string::operator padded_string_view() const noexcept { + return padded_string_view(data(), length(), length() + SIMDJSON_PADDING); +} + +inline simdjson_result padded_string::load(std::string_view filename) noexcept { + // Open the file + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + std::FILE *fp = std::fopen(filename.data(), "rb"); + SIMDJSON_POP_DISABLE_WARNINGS + + if (fp == nullptr) { + return IO_ERROR; + } + + // Get the file size + int ret; +#if SIMDJSON_VISUAL_STUDIO && !SIMDJSON_IS_32BITS + ret = _fseeki64(fp, 0, SEEK_END); +#else + ret = std::fseek(fp, 0, SEEK_END); +#endif // _WIN64 + if(ret < 0) { + std::fclose(fp); + return IO_ERROR; + } +#if SIMDJSON_VISUAL_STUDIO && !SIMDJSON_IS_32BITS + __int64 llen = _ftelli64(fp); + if(llen == -1L) { + std::fclose(fp); + return IO_ERROR; + } +#else + long llen = std::ftell(fp); + if((llen < 0) || (llen == LONG_MAX)) { + std::fclose(fp); + return IO_ERROR; + } +#endif + + // Allocate the padded_string + size_t len = static_cast(llen); + padded_string s(len); + if (s.data() == nullptr) { + std::fclose(fp); + return MEMALLOC; + } + + // Read the padded_string + std::rewind(fp); + size_t bytes_read = std::fread(s.data(), 1, len, fp); + if (std::fclose(fp) != 0 || bytes_read != len) { + return IO_ERROR; + } + + return s; +} + +} // namespace simdjson + +#endif // SIMDJSON_INLINE_PADDED_STRING_H +/* end file include/simdjson/padded_string-inl.h */ +/* begin file include/simdjson/padded_string_view-inl.h */ +#ifndef SIMDJSON_PADDED_STRING_VIEW_INL_H +#define SIMDJSON_PADDED_STRING_VIEW_INL_H + + +#include +#include +#include +#include + +namespace simdjson { + +inline padded_string_view::padded_string_view(const char* s, size_t len, size_t capacity) noexcept + : std::string_view(s, len), _capacity(capacity) +{ +} + +inline padded_string_view::padded_string_view(const uint8_t* s, size_t len, size_t capacity) noexcept + : padded_string_view(reinterpret_cast(s), len, capacity) +{ +} + +inline padded_string_view::padded_string_view(const std::string &s) noexcept + : std::string_view(s), _capacity(s.capacity()) +{ +} + +inline padded_string_view::padded_string_view(std::string_view s, size_t capacity) noexcept + : std::string_view(s), _capacity(capacity) +{ +} + +inline size_t padded_string_view::capacity() const noexcept { return _capacity; } + +inline size_t padded_string_view::padding() const noexcept { return capacity() - length(); } + +} // namespace simdjson + +#endif // SIMDJSON_PADDED_STRING_VIEW_INL_H +/* end file include/simdjson/padded_string_view-inl.h */ + +SIMDJSON_POP_DISABLE_WARNINGS + +#endif // SIMDJSON_BASE_H +/* end file include/simdjson/base.h */ + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_UNDESIRED_WARNINGS + +/* begin file include/simdjson/dom/array.h */ +#ifndef SIMDJSON_DOM_ARRAY_H +#define SIMDJSON_DOM_ARRAY_H + +/* begin file include/simdjson/internal/tape_ref.h */ +#ifndef SIMDJSON_INTERNAL_TAPE_REF_H +#define SIMDJSON_INTERNAL_TAPE_REF_H + +/* begin file include/simdjson/internal/tape_type.h */ +#ifndef SIMDJSON_INTERNAL_TAPE_TYPE_H +#define SIMDJSON_INTERNAL_TAPE_TYPE_H + +namespace simdjson { +namespace internal { + +/** + * The possible types in the tape. + */ +enum class tape_type { + ROOT = 'r', + START_ARRAY = '[', + START_OBJECT = '{', + END_ARRAY = ']', + END_OBJECT = '}', + STRING = '"', + INT64 = 'l', + UINT64 = 'u', + DOUBLE = 'd', + TRUE_VALUE = 't', + FALSE_VALUE = 'f', + NULL_VALUE = 'n' +}; // enum class tape_type + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_TAPE_TYPE_H +/* end file include/simdjson/internal/tape_type.h */ + +namespace simdjson { + +namespace dom { + class document; +} + +namespace internal { + +constexpr const uint64_t JSON_VALUE_MASK = 0x00FFFFFFFFFFFFFF; +constexpr const uint32_t JSON_COUNT_MASK = 0xFFFFFF; + +/** + * A reference to an element on the tape. Internal only. + */ +class tape_ref { +public: + simdjson_inline tape_ref() noexcept; + simdjson_inline tape_ref(const dom::document *doc, size_t json_index) noexcept; + inline size_t after_element() const noexcept; + simdjson_inline tape_type tape_ref_type() const noexcept; + simdjson_inline uint64_t tape_value() const noexcept; + simdjson_inline bool is_double() const noexcept; + simdjson_inline bool is_int64() const noexcept; + simdjson_inline bool is_uint64() const noexcept; + simdjson_inline bool is_false() const noexcept; + simdjson_inline bool is_true() const noexcept; + simdjson_inline bool is_null_on_tape() const noexcept;// different name to avoid clash with is_null. + simdjson_inline uint32_t matching_brace_index() const noexcept; + simdjson_inline uint32_t scope_count() const noexcept; + template + simdjson_inline T next_tape_value() const noexcept; + simdjson_inline uint32_t get_string_length() const noexcept; + simdjson_inline const char * get_c_str() const noexcept; + inline std::string_view get_string_view() const noexcept; + simdjson_inline bool is_document_root() const noexcept; + simdjson_inline bool usable() const noexcept; + + /** The document this element references. */ + const dom::document *doc; + + /** The index of this element on `doc.tape[]` */ + size_t json_index; +}; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_TAPE_REF_H +/* end file include/simdjson/internal/tape_ref.h */ + +namespace simdjson { + +namespace internal { +template +class string_builder; +} +namespace dom { + +class document; +class element; + +/** + * JSON array. + */ +class array { +public: + /** Create a new, invalid array */ + simdjson_inline array() noexcept; + + class iterator { + public: + using value_type = element; + using difference_type = std::ptrdiff_t; + + /** + * Get the actual value + */ + inline value_type operator*() const noexcept; + /** + * Get the next value. + * + * Part of the std::iterator interface. + */ + inline iterator& operator++() noexcept; + /** + * Get the next value. + * + * Part of the std::iterator interface. + */ + inline iterator operator++(int) noexcept; + /** + * Check if these values come from the same place in the JSON. + * + * Part of the std::iterator interface. + */ + inline bool operator!=(const iterator& other) const noexcept; + inline bool operator==(const iterator& other) const noexcept; + + inline bool operator<(const iterator& other) const noexcept; + inline bool operator<=(const iterator& other) const noexcept; + inline bool operator>=(const iterator& other) const noexcept; + inline bool operator>(const iterator& other) const noexcept; + + iterator() noexcept = default; + iterator(const iterator&) noexcept = default; + iterator& operator=(const iterator&) noexcept = default; + private: + simdjson_inline iterator(const internal::tape_ref &tape) noexcept; + internal::tape_ref tape; + friend class array; + }; + + /** + * Return the first array element. + * + * Part of the std::iterable interface. + */ + inline iterator begin() const noexcept; + /** + * One past the last array element. + * + * Part of the std::iterable interface. + */ + inline iterator end() const noexcept; + /** + * Get the size of the array (number of immediate children). + * It is a saturated value with a maximum of 0xFFFFFF: if the value + * is 0xFFFFFF then the size is 0xFFFFFF or greater. + */ + inline size_t size() const noexcept; + /** + * Get the total number of slots used by this array on the tape. + * + * Note that this is not the same thing as `size()`, which reports the + * number of actual elements within an array (not counting its children). + * + * Since an element can use 1 or 2 slots on the tape, you can only use this + * to figure out the total size of an array (including its children, + * recursively) if you know its structure ahead of time. + **/ + inline size_t number_of_slots() const noexcept; + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * dom::parser parser; + * array a = parser.parse(R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded); + * a.at_pointer("/0/foo/a/1") == 20 + * a.at_pointer("0")["foo"]["a"].at(1) == 20 + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) const noexcept; + + /** + * Get the value at the given index. This function has linear-time complexity and + * is equivalent to the following: + * + * size_t i=0; + * for (auto element : *this) { + * if (i == index) { return element; } + * i++; + * } + * return INDEX_OUT_OF_BOUNDS; + * + * Avoid calling the at() function repeatedly. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + inline simdjson_result at(size_t index) const noexcept; + +private: + simdjson_inline array(const internal::tape_ref &tape) noexcept; + internal::tape_ref tape; + friend class element; + friend struct simdjson_result; + template + friend class simdjson::internal::string_builder; +}; + + +} // namespace dom + +/** The result of a JSON conversion that may fail. */ +template<> +struct simdjson_result : public internal::simdjson_result_base { +public: + simdjson_inline simdjson_result() noexcept; ///< @private + simdjson_inline simdjson_result(dom::array value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + inline simdjson_result at_pointer(std::string_view json_pointer) const noexcept; + inline simdjson_result at(size_t index) const noexcept; + +#if SIMDJSON_EXCEPTIONS + inline dom::array::iterator begin() const noexcept(false); + inline dom::array::iterator end() const noexcept(false); + inline size_t size() const noexcept(false); +#endif // SIMDJSON_EXCEPTIONS +}; + + + +} // namespace simdjson + +#if defined(__cpp_lib_ranges) +#include + +namespace std { +namespace ranges { +template<> +inline constexpr bool enable_view = true; +#if SIMDJSON_EXCEPTIONS +template<> +inline constexpr bool enable_view> = true; +#endif // SIMDJSON_EXCEPTIONS +} // namespace ranges +} // namespace std +#endif // defined(__cpp_lib_ranges) + +#endif // SIMDJSON_DOM_ARRAY_H +/* end file include/simdjson/dom/array.h */ +/* begin file include/simdjson/dom/document_stream.h */ +#ifndef SIMDJSON_DOCUMENT_STREAM_H +#define SIMDJSON_DOCUMENT_STREAM_H + +/* begin file include/simdjson/dom/parser.h */ +#ifndef SIMDJSON_DOM_PARSER_H +#define SIMDJSON_DOM_PARSER_H + +/* begin file include/simdjson/dom/document.h */ +#ifndef SIMDJSON_DOM_DOCUMENT_H +#define SIMDJSON_DOM_DOCUMENT_H + +#include +#include + +namespace simdjson { +namespace dom { + +class element; + +/** + * A parsed JSON document. + * + * This class cannot be copied, only moved, to avoid unintended allocations. + */ +class document { +public: + /** + * Create a document container with zero capacity. + * + * The parser will allocate capacity as needed. + */ + document() noexcept = default; + ~document() noexcept = default; + + /** + * Take another document's buffers. + * + * @param other The document to take. Its capacity is zeroed and it is invalidated. + */ + document(document &&other) noexcept = default; + /** @private */ + document(const document &) = delete; // Disallow copying + /** + * Take another document's buffers. + * + * @param other The document to take. Its capacity is zeroed. + */ + document &operator=(document &&other) noexcept = default; + /** @private */ + document &operator=(const document &) = delete; // Disallow copying + + /** + * Get the root element of this document as a JSON array. + */ + element root() const noexcept; + + /** + * @private Dump the raw tape for debugging. + * + * @param os the stream to output to. + * @return false if the tape is likely wrong (e.g., you did not parse a valid JSON). + */ + bool dump_raw_tape(std::ostream &os) const noexcept; + + /** @private Structural values. */ + std::unique_ptr tape{}; + + /** @private String values. + * + * Should be at least byte_capacity. + */ + std::unique_ptr string_buf{}; + /** @private Allocate memory to support + * input JSON documents of up to len bytes. + * + * When calling this function, you lose + * all the data. + * + * The memory allocation is strict: you + * can you use this function to increase + * or lower the amount of allocated memory. + * Passsing zero clears the memory. + */ + error_code allocate(size_t len) noexcept; + /** @private Capacity in bytes, in terms + * of how many bytes of input JSON we can + * support. + */ + size_t capacity() const noexcept; + + +private: + size_t allocated_capacity{0}; + friend class parser; +}; // class document + +} // namespace dom +} // namespace simdjson + +#endif // SIMDJSON_DOM_DOCUMENT_H +/* end file include/simdjson/dom/document.h */ +#include +#include +#include + +namespace simdjson { + +namespace dom { + +class document_stream; +class element; + +/** The default batch size for parser.parse_many() and parser.load_many() */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; + +/** + * It is wasteful to allocate memory for tiny documents (e.g., 4 bytes). + */ +static constexpr size_t MINIMAL_DOCUMENT_CAPACITY = 32; + +/** + * A persistent document parser. + * + * The parser is designed to be reused, holding the internal buffers necessary to do parsing, + * as well as memory for a single document. The parsed document is overwritten on each parse. + * + * This class cannot be copied, only moved, to avoid unintended allocations. + * + * @note Moving a parser instance may invalidate "dom::element" instances. If you need to + * preserve both the "dom::element" instances and the parser, consider wrapping the parser + * instance in a std::unique_ptr instance: + * + * std::unique_ptr parser(new dom::parser{}); + * auto error = parser->load(f).get(root); + * + * You can then move std::unique_ptr safely. + * + * @note This is not thread safe: one parser cannot produce two documents at the same time! + */ +class parser { +public: + /** + * Create a JSON parser. + * + * The new parser will have zero capacity. + * + * @param max_capacity The maximum document length the parser can automatically handle. The parser + * will allocate more capacity on an as needed basis (when it sees documents too big to handle) + * up to this amount. The parser still starts with zero capacity no matter what this number is: + * to allocate an initial capacity, call allocate() after constructing the parser. + * Defaults to SIMDJSON_MAXSIZE_BYTES (the largest single document simdjson can process). + */ + simdjson_inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; + /** + * Take another parser's buffers and state. + * + * @param other The parser to take. Its capacity is zeroed. + */ + simdjson_inline parser(parser &&other) noexcept; + parser(const parser &) = delete; ///< @private Disallow copying + /** + * Take another parser's buffers and state. + * + * @param other The parser to take. Its capacity is zeroed. + */ + simdjson_inline parser &operator=(parser &&other) noexcept; + parser &operator=(const parser &) = delete; ///< @private Disallow copying + + /** Deallocate the JSON parser. */ + ~parser()=default; + + /** + * Load a JSON document from a file and return a reference to it. + * + * dom::parser parser; + * const element doc = parser.load("jsonexamples/twitter.json"); + * + * The function is eager: the file's content is loaded in memory inside the parser instance + * and immediately parsed. The file can be deleted after the `parser.load` call. + * + * ### IMPORTANT: Document Lifetime + * + * The JSON document still lives in the parser: this is the most efficient way to parse JSON + * documents because it reuses the same buffers, but you *must* use the document before you + * destroy the parser or call parse() again. + * + * Moving the parser instance is safe, but it invalidates the element instances. You may store + * the parser instance without moving it by wrapping it inside an `unique_ptr` instance like + * so: `std::unique_ptr parser(new dom::parser{});`. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than the file length, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param path The path to load. + * @return The document, or an error: + * - IO_ERROR if there was an error opening or reading the file. + * Be mindful that on some 32-bit systems, + * the file size might be limited to 2 GB. + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails. + * - CAPACITY if the parser does not have enough capacity and len > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result load(const std::string &path) & noexcept; + inline simdjson_result load(const std::string &path) && = delete ; + /** + * Parse a JSON document and return a temporary reference to it. + * + * dom::parser parser; + * element doc_root = parser.parse(buf, len); + * + * The function eagerly parses the input: the input can be modified and discarded after + * the `parser.parse(buf, len)` call has completed. + * + * ### IMPORTANT: Document Lifetime + * + * The JSON document still lives in the parser: this is the most efficient way to parse JSON + * documents because it reuses the same buffers, but you *must* use the document before you + * destroy the parser or call parse() again. + * + * Moving the parser instance is safe, but it invalidates the element instances. You may store + * the parser instance without moving it by wrapping it inside an `unique_ptr` instance like + * so: `std::unique_ptr parser(new dom::parser{});`. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * If realloc_if_needed is true (the default), it is assumed that the buffer does *not* have enough padding, + * and it is copied into an enlarged temporary buffer before parsing. Thus the following is safe: + * + * const char *json = R"({"key":"value"})"; + * const size_t json_len = std::strlen(json); + * simdjson::dom::parser parser; + * simdjson::dom::element element = parser.parse(json, json_len); + * + * If you set realloc_if_needed to false (e.g., parser.parse(json, json_len, false)), + * you must provide a buffer with at least SIMDJSON_PADDING extra bytes at the end. + * The benefit of setting realloc_if_needed to false is that you avoid a temporary + * memory allocation and a copy. + * + * The padded bytes may be read. It is not important how you initialize + * these bytes though we recommend a sensible default like null character values or spaces. + * For example, the following low-level code is safe: + * + * const char *json = R"({"key":"value"})"; + * const size_t json_len = std::strlen(json); + * std::unique_ptr padded_json_copy{new char[json_len + SIMDJSON_PADDING]}; + * std::memcpy(padded_json_copy.get(), json, json_len); + * std::memset(padded_json_copy.get() + json_len, '\0', SIMDJSON_PADDING); + * simdjson::dom::parser parser; + * simdjson::dom::element element = parser.parse(padded_json_copy.get(), json_len, false); + * + * ### Parser Capacity + * + * If the parser's current capacity is less than len, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, unless + * realloc_if_needed is true. + * @param len The length of the JSON. + * @param realloc_if_needed Whether to reallocate and enlarge the JSON buffer to add padding. + * @return An element pointing at the root of the document, or an error: + * - MEMALLOC if realloc_if_needed is true or the parser does not have enough capacity, + * and memory allocation fails. + * - CAPACITY if the parser does not have enough capacity and len > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result parse(const uint8_t *buf, size_t len, bool realloc_if_needed = true) & noexcept; + inline simdjson_result parse(const uint8_t *buf, size_t len, bool realloc_if_needed = true) && =delete; + /** @overload parse(const uint8_t *buf, size_t len, bool realloc_if_needed) */ + simdjson_inline simdjson_result parse(const char *buf, size_t len, bool realloc_if_needed = true) & noexcept; + simdjson_inline simdjson_result parse(const char *buf, size_t len, bool realloc_if_needed = true) && =delete; + /** @overload parse(const uint8_t *buf, size_t len, bool realloc_if_needed) */ + simdjson_inline simdjson_result parse(const std::string &s) & noexcept; + simdjson_inline simdjson_result parse(const std::string &s) && =delete; + /** @overload parse(const uint8_t *buf, size_t len, bool realloc_if_needed) */ + simdjson_inline simdjson_result parse(const padded_string &s) & noexcept; + simdjson_inline simdjson_result parse(const padded_string &s) && =delete; + /** @overload parse(const uint8_t *buf, size_t len, bool realloc_if_needed) */ + simdjson_inline simdjson_result parse(const padded_string_view &v) & noexcept; + simdjson_inline simdjson_result parse(const padded_string_view &v) && =delete; + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_inline simdjson_result parse(const char *buf) noexcept = delete; + + /** + * Parse a JSON document into a provide document instance and return a temporary reference to it. + * It is similar to the function `parse` except that instead of parsing into the internal + * `document` instance associated with the parser, it allows the user to provide a document + * instance. + * + * dom::parser parser; + * dom::document doc; + * element doc_root = parser.parse_into_document(doc, buf, len); + * + * The function eagerly parses the input: the input can be modified and discarded after + * the `parser.parse(buf, len)` call has completed. + * + * ### IMPORTANT: Document Lifetime + * + * After the call to parse_into_document, the parser is no longer needed. + * + * The JSON document lives in the document instance: you must keep the document + * instance alive while you navigate through it (i.e., used the returned value from + * parse_into_document). You are encourage to reuse the document instance + * many times with new data to avoid reallocations: + * + * dom::document doc; + * element doc_root1 = parser.parse_into_document(doc, buf1, len); + * //... doc_root1 is a pointer inside doc + * element doc_root2 = parser.parse_into_document(doc, buf1, len); + * //... doc_root2 is a pointer inside doc + * // at this point doc_root1 is no longer safe + * + * Moving the document instance is safe, but it invalidates the element instances. After + * moving a document, you can recover safe access to the document root with its `root()` method. + * + * @param doc The document instance where the parsed data will be stored (on success). + * @param buf The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, unless + * realloc_if_needed is true. + * @param len The length of the JSON. + * @param realloc_if_needed Whether to reallocate and enlarge the JSON buffer to add padding. + * @return An element pointing at the root of document, or an error: + * - MEMALLOC if realloc_if_needed is true or the parser does not have enough capacity, + * and memory allocation fails. + * - CAPACITY if the parser does not have enough capacity and len > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result parse_into_document(document& doc, const uint8_t *buf, size_t len, bool realloc_if_needed = true) & noexcept; + inline simdjson_result parse_into_document(document& doc, const uint8_t *buf, size_t len, bool realloc_if_needed = true) && =delete; + /** @overload parse_into_document(const uint8_t *buf, size_t len, bool realloc_if_needed) */ + simdjson_inline simdjson_result parse_into_document(document& doc, const char *buf, size_t len, bool realloc_if_needed = true) & noexcept; + simdjson_inline simdjson_result parse_into_document(document& doc, const char *buf, size_t len, bool realloc_if_needed = true) && =delete; + /** @overload parse_into_document(const uint8_t *buf, size_t len, bool realloc_if_needed) */ + simdjson_inline simdjson_result parse_into_document(document& doc, const std::string &s) & noexcept; + simdjson_inline simdjson_result parse_into_document(document& doc, const std::string &s) && =delete; + /** @overload parse_into_document(const uint8_t *buf, size_t len, bool realloc_if_needed) */ + simdjson_inline simdjson_result parse_into_document(document& doc, const padded_string &s) & noexcept; + simdjson_inline simdjson_result parse_into_document(document& doc, const padded_string &s) && =delete; + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_inline simdjson_result parse_into_document(document& doc, const char *buf) noexcept = delete; + + /** + * Load a file containing many JSON documents. + * + * dom::parser parser; + * for (const element doc : parser.load_many(path)) { + * cout << std::string(doc["title"]) << endl; + * } + * + * The file is loaded in memory and can be safely deleted after the `parser.load_many(path)` + * function has returned. The memory is held by the `parser` instance. + * + * The function is lazy: it may be that no more than one JSON document at a time is parsed. + * And, possibly, no document many have been parsed when the `parser.load_many(path)` function + * returned. + * + * ### Format + * + * The file must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) + * + * Documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with whitespace. + * + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excesively small values may impact negatively the + * performance. + * + * ### Error Handling + * + * All errors are returned during iteration: if there is a global error such as memory allocation, + * it will be yielded as the first result. Iteration always stops after the first error. + * + * As with all other simdjson methods, non-exception error handling is readily available through + * the same interface, requiring you to check the error before using the document: + * + * dom::parser parser; + * dom::document_stream docs; + * auto error = parser.load_many(path).get(docs); + * if (error) { cerr << error << endl; exit(1); } + * for (auto doc : docs) { + * std::string_view title; + * if ((error = doc["title"].get(title)) { cerr << error << endl; exit(1); } + * cout << title << endl; + * } + * + * ### Threads + * + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param path File name pointing at the concatenated JSON to parse. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 1MB (as simdjson::dom::DEFAULT_BATCH_SIZE), which has been a reasonable sweet + * spot in our tests. + * If you set the batch_size to a value smaller than simdjson::dom::MINIMAL_BATCH_SIZE + * (currently 32B), it will be replaced by simdjson::dom::MINIMAL_BATCH_SIZE. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - IO_ERROR if there was an error opening or reading the file. + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails. + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result load_many(const std::string &path, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept; + + /** + * Parse a buffer containing many JSON documents. + * + * dom::parser parser; + * for (element doc : parser.parse_many(buf, len)) { + * cout << std::string(doc["title"]) << endl; + * } + * + * No copy of the input buffer is made. + * + * The function is lazy: it may be that no more than one JSON document at a time is parsed. + * And, possibly, no document many have been parsed when the `parser.load_many(path)` function + * returned. + * + * The caller is responsabile to ensure that the input string data remains unchanged and is + * not deleted during the loop. In particular, the following is unsafe and will not compile: + * + * auto docs = parser.parse_many("[\"temporary data\"]"_padded); + * // here the string "[\"temporary data\"]" may no longer exist in memory + * // the parser instance may not have even accessed the input yet + * for (element doc : docs) { + * cout << std::string(doc["title"]) << endl; + * } + * + * The following is safe: + * + * auto json = "[\"temporary data\"]"_padded; + * auto docs = parser.parse_many(json); + * for (element doc : docs) { + * cout << std::string(doc["title"]) << endl; + * } + * + * ### Format + * + * The buffer must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) + * + * documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with whitespace. + * + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excesively small values may impact negatively the + * performance. + * + * ### Error Handling + * + * All errors are returned during iteration: if there is a global error such as memory allocation, + * it will be yielded as the first result. Iteration always stops after the first error. + * + * As with all other simdjson methods, non-exception error handling is readily available through + * the same interface, requiring you to check the error before using the document: + * + * dom::parser parser; + * dom::document_stream docs; + * auto error = parser.load_many(path).get(docs); + * if (error) { cerr << error << endl; exit(1); } + * for (auto doc : docs) { + * std::string_view title; + * if ((error = doc["title"].get(title)) { cerr << error << endl; exit(1); } + * cout << title << endl; + * } + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * ### Threads + * + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The concatenated JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes. + * @param len The length of the concatenated JSON. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 10MB, which has been a reasonable sweet spot in our tests. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result parse_many(const uint8_t *buf, size_t len, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result parse_many(const char *buf, size_t len, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result parse_many(const std::string &s, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept; + inline simdjson_result parse_many(const std::string &&s, size_t batch_size) = delete;// unsafe + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result parse_many(const padded_string &s, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept; + inline simdjson_result parse_many(const padded_string &&s, size_t batch_size) = delete;// unsafe + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_result parse_many(const char *buf, size_t batch_size = dom::DEFAULT_BATCH_SIZE) noexcept = delete; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused inline error_code allocate(size_t capacity, size_t max_depth = DEFAULT_MAX_DEPTH) noexcept; + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API + /** + * @private deprecated because it returns bool instead of error_code, which is our standard for + * failures. Use allocate() instead. + * + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return true if successful, false if allocation failed. + */ + [[deprecated("Use allocate() instead.")]] + simdjson_warn_unused inline bool allocate_capacity(size_t capacity, size_t max_depth = DEFAULT_MAX_DEPTH) noexcept; +#endif // SIMDJSON_DISABLE_DEPRECATED_API + /** + * The largest document this parser can support without reallocating. + * + * @return Current capacity, in bytes. + */ + simdjson_inline size_t capacity() const noexcept; + + /** + * The largest document this parser can automatically support. + * + * The parser may reallocate internal buffers as needed up to this amount. + * + * @return Maximum capacity, in bytes. + */ + simdjson_inline size_t max_capacity() const noexcept; + + /** + * The maximum level of nested object and arrays supported by this parser. + * + * @return Maximum depth, in bytes. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Set max_capacity. This is the largest document this parser can automatically support. + * + * The parser may reallocate internal buffers as needed up to this amount as documents are passed + * to it. + * + * Note: To avoid limiting the memory to an absurd value, such as zero or two bytes, + * iff you try to set max_capacity to a value lower than MINIMAL_DOCUMENT_CAPACITY, + * then the maximal capacity is set to MINIMAL_DOCUMENT_CAPACITY. + * + * This call will not allocate or deallocate, even if capacity is currently above max_capacity. + * + * @param max_capacity The new maximum capacity, in bytes. + */ + simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; + +#ifdef SIMDJSON_THREADS_ENABLED + /** + * The parser instance can use threads when they are available to speed up some + * operations. It is enabled by default. Changing this attribute will change the + * behavior of the parser for future operations. + */ + bool threaded{true}; +#endif + /** @private Use the new DOM API instead */ + class Iterator; + /** @private Use simdjson_error instead */ + using InvalidJSON [[deprecated("Use simdjson_error instead")]] = simdjson_error; + + /** @private [for benchmarking access] The implementation to use */ + std::unique_ptr implementation{}; + + /** @private Use `if (parser.parse(...).error())` instead */ + bool valid{false}; + /** @private Use `parser.parse(...).error()` instead */ + error_code error{UNINITIALIZED}; + + /** @private Use `parser.parse(...).value()` instead */ + document doc{}; + + /** @private returns true if the document parsed was valid */ + [[deprecated("Use the result of parser.parse() instead")]] + inline bool is_valid() const noexcept; + + /** + * @private return an error code corresponding to the last parsing attempt, see + * simdjson.h will return UNINITIALIZED if no parsing was attempted + */ + [[deprecated("Use the result of parser.parse() instead")]] + inline int get_error_code() const noexcept; + + /** @private return the string equivalent of "get_error_code" */ + [[deprecated("Use error_message() on the result of parser.parse() instead, or cout << error")]] + inline std::string get_error_message() const noexcept; + + /** @private */ + [[deprecated("Use cout << on the result of parser.parse() instead")]] + inline bool print_json(std::ostream &os) const noexcept; + + /** @private Private and deprecated: use `parser.parse(...).doc.dump_raw_tape()` instead */ + inline bool dump_raw_tape(std::ostream &os) const noexcept; + + +private: + /** + * The maximum document length this parser will automatically support. + * + * The parser will not be automatically allocated above this amount. + */ + size_t _max_capacity; + + /** + * The loaded buffer (reused each time load() is called) + */ + std::unique_ptr loaded_bytes; + + /** Capacity of loaded_bytes buffer. */ + size_t _loaded_bytes_capacity{0}; + + // all nodes are stored on the doc.tape using a 64-bit word. + // + // strings, double and ints are stored as + // a 64-bit word with a pointer to the actual value + // + // + // + // for objects or arrays, store [ or { at the beginning and } and ] at the + // end. For the openings ([ or {), we annotate them with a reference to the + // location on the doc.tape of the end, and for then closings (} and ]), we + // annotate them with a reference to the location of the opening + // + // + + /** + * Ensure we have enough capacity to handle at least desired_capacity bytes, + * and auto-allocate if not. This also allocates memory if needed in the + * internal document. + */ + inline error_code ensure_capacity(size_t desired_capacity) noexcept; + /** + * Ensure we have enough capacity to handle at least desired_capacity bytes, + * and auto-allocate if not. This also allocates memory if needed in the + * provided document. + */ + inline error_code ensure_capacity(document& doc, size_t desired_capacity) noexcept; + + /** Read the file into loaded_bytes */ + inline simdjson_result read_file(const std::string &path) noexcept; + + friend class parser::Iterator; + friend class document_stream; + + +}; // class parser + +} // namespace dom +} // namespace simdjson + +#endif // SIMDJSON_DOM_PARSER_H +/* end file include/simdjson/dom/parser.h */ +#ifdef SIMDJSON_THREADS_ENABLED +#include +#include +#include +#endif + +namespace simdjson { +namespace dom { + + +#ifdef SIMDJSON_THREADS_ENABLED +/** @private Custom worker class **/ +struct stage1_worker { + stage1_worker() noexcept = default; + stage1_worker(const stage1_worker&) = delete; + stage1_worker(stage1_worker&&) = delete; + stage1_worker operator=(const stage1_worker&) = delete; + ~stage1_worker(); + /** + * We only start the thread when it is needed, not at object construction, this may throw. + * You should only call this once. + **/ + void start_thread(); + /** + * Start a stage 1 job. You should first call 'run', then 'finish'. + * You must call start_thread once before. + */ + void run(document_stream * ds, dom::parser * stage1, size_t next_batch_start); + /** Wait for the run to finish (blocking). You should first call 'run', then 'finish'. **/ + void finish(); + +private: + + /** + * Normally, we would never stop the thread. But we do in the destructor. + * This function is only safe assuming that you are not waiting for results. You + * should have called run, then finish, and be done. + **/ + void stop_thread(); + + std::thread thread{}; + /** These three variables define the work done by the thread. **/ + dom::parser * stage1_thread_parser{}; + size_t _next_batch_start{}; + document_stream * owner{}; + /** + * We have two state variables. This could be streamlined to one variable in the future but + * we use two for clarity. + */ + bool has_work{false}; + bool can_work{true}; + + /** + * We lock using a mutex. + */ + std::mutex locking_mutex{}; + std::condition_variable cond_var{}; +}; +#endif + +/** + * A forward-only stream of documents. + * + * Produced by parser::parse_many. + * + */ +class document_stream { +public: + /** + * Construct an uninitialized document_stream. + * + * ```c++ + * document_stream docs; + * error = parser.parse_many(json).get(docs); + * ``` + */ + simdjson_inline document_stream() noexcept; + /** Move one document_stream to another. */ + simdjson_inline document_stream(document_stream &&other) noexcept = default; + /** Move one document_stream to another. */ + simdjson_inline document_stream &operator=(document_stream &&other) noexcept = default; + + simdjson_inline ~document_stream() noexcept; + /** + * Returns the input size in bytes. + */ + inline size_t size_in_bytes() const noexcept; + /** + * After iterating through the stream, this method + * returns the number of bytes that were not parsed at the end + * of the stream. If truncated_bytes() differs from zero, + * then the input was truncated maybe because incomplete JSON + * documents were found at the end of the stream. You + * may need to process the bytes in the interval [size_in_bytes()-truncated_bytes(), size_in_bytes()). + * + * You should only call truncated_bytes() after streaming through all + * documents, like so: + * + * document_stream stream = parser.parse_many(json,window); + * for(auto doc : stream) { + * // do something with doc + * } + * size_t truncated = stream.truncated_bytes(); + * + */ + inline size_t truncated_bytes() const noexcept; + /** + * An iterator through a forward-only stream of documents. + */ + class iterator { + public: + using value_type = simdjson_result; + using reference = value_type; + + using difference_type = std::ptrdiff_t; + + using iterator_category = std::input_iterator_tag; + + /** + * Default constructor. + */ + simdjson_inline iterator() noexcept; + /** + * Get the current document (or error). + */ + simdjson_inline reference operator*() noexcept; + /** + * Advance to the next document (prefix). + */ + inline iterator& operator++() noexcept; + /** + * Check if we're at the end yet. + * @param other the end iterator to compare to. + */ + simdjson_inline bool operator!=(const iterator &other) const noexcept; + /** + * @private + * + * Gives the current index in the input document in bytes. + * + * document_stream stream = parser.parse_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * auto doc = *i; + * size_t index = i.current_index(); + * } + * + * This function (current_index()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + */ + simdjson_inline size_t current_index() const noexcept; + /** + * @private + * + * Gives a view of the current document. + * + * document_stream stream = parser.parse_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * auto doc = *i; + * std::string_view v = i->source(); + * } + * + * The returned string_view instance is simply a map to the (unparsed) + * source string: it may thus include white-space characters and all manner + * of padding. + * + * This function (source()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + */ + simdjson_inline std::string_view source() const noexcept; + + private: + simdjson_inline iterator(document_stream *s, bool finished) noexcept; + /** The document_stream we're iterating through. */ + document_stream* stream; + /** Whether we're finished or not. */ + bool finished; + friend class document_stream; + }; + + /** + * Start iterating the documents in the stream. + */ + simdjson_inline iterator begin() noexcept; + /** + * The end of the stream, for iterator comparison purposes. + */ + simdjson_inline iterator end() noexcept; + +private: + + document_stream &operator=(const document_stream &) = delete; // Disallow copying + document_stream(const document_stream &other) = delete; // Disallow copying + + /** + * Construct a document_stream. Does not allocate or parse anything until the iterator is + * used. + * + * @param parser is a reference to the parser instance used to generate this document_stream + * @param buf is the raw byte buffer we need to process + * @param len is the length of the raw byte buffer in bytes + * @param batch_size is the size of the windows (must be strictly greater or equal to the largest JSON document) + */ + simdjson_inline document_stream( + dom::parser &parser, + const uint8_t *buf, + size_t len, + size_t batch_size + ) noexcept; + + /** + * Parse the first document in the buffer. Used by begin(), to handle allocation and + * initialization. + */ + inline void start() noexcept; + + /** + * Parse the next document found in the buffer previously given to document_stream. + * + * The content should be a valid JSON document encoded as UTF-8. If there is a + * UTF-8 BOM, the caller is responsible for omitting it, UTF-8 BOM are + * discouraged. + * + * You do NOT need to pre-allocate a parser. This function takes care of + * pre-allocating a capacity defined by the batch_size defined when creating the + * document_stream object. + * + * The function returns simdjson::EMPTY if there is no more data to be parsed. + * + * The function returns simdjson::SUCCESS (as integer = 0) in case of success + * and indicates that the buffer has successfully been parsed to the end. + * Every document it contained has been parsed without error. + * + * The function returns an error code from simdjson/simdjson.h in case of failure + * such as simdjson::CAPACITY, simdjson::MEMALLOC, simdjson::DEPTH_ERROR and so forth; + * the simdjson::error_message function converts these error codes into a string). + * + * You can also check validity by calling parser.is_valid(). The same parser can + * and should be reused for the other documents in the buffer. + */ + inline void next() noexcept; + + /** + * Pass the next batch through stage 1 and return when finished. + * When threads are enabled, this may wait for the stage 1 thread to finish. + */ + inline void load_batch() noexcept; + + /** Get the next document index. */ + inline size_t next_batch_start() const noexcept; + + /** Pass the next batch through stage 1 with the given parser. */ + inline error_code run_stage1(dom::parser &p, size_t batch_start) noexcept; + + dom::parser *parser; + const uint8_t *buf; + size_t len; + size_t batch_size; + /** The error (or lack thereof) from the current document. */ + error_code error; + size_t batch_start{0}; + size_t doc_index{}; +#ifdef SIMDJSON_THREADS_ENABLED + /** Indicates whether we use threads. Note that this needs to be a constant during the execution of the parsing. */ + bool use_thread; + + inline void load_from_stage1_thread() noexcept; + + /** Start a thread to run stage 1 on the next batch. */ + inline void start_stage1_thread() noexcept; + + /** Wait for the stage 1 thread to finish and capture the results. */ + inline void finish_stage1_thread() noexcept; + + /** The error returned from the stage 1 thread. */ + error_code stage1_thread_error{UNINITIALIZED}; + /** The thread used to run stage 1 against the next batch in the background. */ + friend struct stage1_worker; + std::unique_ptr worker{new(std::nothrow) stage1_worker()}; + /** + * The parser used to run stage 1 in the background. Will be swapped + * with the regular parser when finished. + */ + dom::parser stage1_thread_parser{}; +#endif // SIMDJSON_THREADS_ENABLED + + friend class dom::parser; + friend struct simdjson_result; + friend struct internal::simdjson_result_base; + +}; // class document_stream + +} // namespace dom + +template<> +struct simdjson_result : public internal::simdjson_result_base { +public: + simdjson_inline simdjson_result() noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result(dom::document_stream &&value) noexcept; ///< @private + +#if SIMDJSON_EXCEPTIONS + simdjson_inline dom::document_stream::iterator begin() noexcept(false); + simdjson_inline dom::document_stream::iterator end() noexcept(false); +#else // SIMDJSON_EXCEPTIONS +#ifndef SIMDJSON_DISABLE_DEPRECATED_API + [[deprecated("parse_many() and load_many() may return errors. Use document_stream stream; error = parser.parse_many().get(doc); instead.")]] + simdjson_inline dom::document_stream::iterator begin() noexcept; + [[deprecated("parse_many() and load_many() may return errors. Use document_stream stream; error = parser.parse_many().get(doc); instead.")]] + simdjson_inline dom::document_stream::iterator end() noexcept; +#endif // SIMDJSON_DISABLE_DEPRECATED_API +#endif // SIMDJSON_EXCEPTIONS +}; // struct simdjson_result + +} // namespace simdjson + +#endif // SIMDJSON_DOCUMENT_STREAM_H +/* end file include/simdjson/dom/document_stream.h */ +/* begin file include/simdjson/dom/element.h */ +#ifndef SIMDJSON_DOM_ELEMENT_H +#define SIMDJSON_DOM_ELEMENT_H + +#include + +namespace simdjson { +namespace internal { +template +class string_builder; +} +namespace dom { +class array; +class document; +class object; + +/** + * The actual concrete type of a JSON element + * This is the type it is most easily cast to with get<>. + */ +enum class element_type { + ARRAY = '[', ///< dom::array + OBJECT = '{', ///< dom::object + INT64 = 'l', ///< int64_t + UINT64 = 'u', ///< uint64_t: any integer that fits in uint64_t but *not* int64_t + DOUBLE = 'd', ///< double: Any number with a "." or "e" that fits in double. + STRING = '"', ///< std::string_view + BOOL = 't', ///< bool + NULL_VALUE = 'n' ///< null +}; + +/** + * A JSON element. + * + * References an element in a JSON document, representing a JSON null, boolean, string, number, + * array or object. + */ +class element { +public: + /** Create a new, invalid element. */ + simdjson_inline element() noexcept; + + /** The type of this element. */ + simdjson_inline element_type type() const noexcept; + + /** + * Cast this element to an array. + * + * @returns An object that can be used to iterate the array, or: + * INCORRECT_TYPE if the JSON element is not an array. + */ + inline simdjson_result get_array() const noexcept; + /** + * Cast this element to an object. + * + * @returns An object that can be used to look up or iterate the object's fields, or: + * INCORRECT_TYPE if the JSON element is not an object. + */ + inline simdjson_result get_object() const noexcept; + /** + * Cast this element to a null-terminated C string. + * + * The string is guaranteed to be valid UTF-8. + * + * The length of the string is given by get_string_length(). Because JSON strings + * may contain null characters, it may be incorrect to use strlen to determine the + * string length. + * + * It is possible to get a single string_view instance which represents both the string + * content and its length: see get_string(). + * + * @returns A pointer to a null-terminated UTF-8 string. This string is stored in the parser and will + * be invalidated the next time it parses a document or when it is destroyed. + * Returns INCORRECT_TYPE if the JSON element is not a string. + */ + inline simdjson_result get_c_str() const noexcept; + /** + * Gives the length in bytes of the string. + * + * It is possible to get a single string_view instance which represents both the string + * content and its length: see get_string(). + * + * @returns A string length in bytes. + * Returns INCORRECT_TYPE if the JSON element is not a string. + */ + inline simdjson_result get_string_length() const noexcept; + /** + * Cast this element to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next time it + * parses a document or when it is destroyed. + * Returns INCORRECT_TYPE if the JSON element is not a string. + */ + inline simdjson_result get_string() const noexcept; + /** + * Cast this element to a signed integer. + * + * @returns A signed 64-bit integer. + * Returns INCORRECT_TYPE if the JSON element is not an integer, or NUMBER_OUT_OF_RANGE + * if it is negative. + */ + inline simdjson_result get_int64() const noexcept; + /** + * Cast this element to an unsigned integer. + * + * @returns An unsigned 64-bit integer. + * Returns INCORRECT_TYPE if the JSON element is not an integer, or NUMBER_OUT_OF_RANGE + * if it is too large. + */ + inline simdjson_result get_uint64() const noexcept; + /** + * Cast this element to a double floating-point. + * + * @returns A double value. + * Returns INCORRECT_TYPE if the JSON element is not a number. + */ + inline simdjson_result get_double() const noexcept; + /** + * Cast this element to a bool. + * + * @returns A bool value. + * Returns INCORRECT_TYPE if the JSON element is not a boolean. + */ + inline simdjson_result get_bool() const noexcept; + + /** + * Whether this element is a json array. + * + * Equivalent to is(). + */ + inline bool is_array() const noexcept; + /** + * Whether this element is a json object. + * + * Equivalent to is(). + */ + inline bool is_object() const noexcept; + /** + * Whether this element is a json string. + * + * Equivalent to is() or is(). + */ + inline bool is_string() const noexcept; + /** + * Whether this element is a json number that fits in a signed 64-bit integer. + * + * Equivalent to is(). + */ + inline bool is_int64() const noexcept; + /** + * Whether this element is a json number that fits in an unsigned 64-bit integer. + * + * Equivalent to is(). + */ + inline bool is_uint64() const noexcept; + /** + * Whether this element is a json number that fits in a double. + * + * Equivalent to is(). + */ + inline bool is_double() const noexcept; + + /** + * Whether this element is a json number. + * + * Both integers and floating points will return true. + */ + inline bool is_number() const noexcept; + + /** + * Whether this element is a json `true` or `false`. + * + * Equivalent to is(). + */ + inline bool is_bool() const noexcept; + /** + * Whether this element is a json `null`. + */ + inline bool is_null() const noexcept; + + /** + * Tell whether the value can be cast to provided type (T). + * + * Supported types: + * - Boolean: bool + * - Number: double, uint64_t, int64_t + * - String: std::string_view, const char * + * - Array: dom::array + * - Object: dom::object + * + * @tparam T bool, double, uint64_t, int64_t, std::string_view, const char *, dom::array, dom::object + */ + template + simdjson_inline bool is() const noexcept; + + /** + * Get the value as the provided type (T). + * + * Supported types: + * - Boolean: bool + * - Number: double, uint64_t, int64_t + * - String: std::string_view, const char * + * - Array: dom::array + * - Object: dom::object + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array() or get_string() instead. + * + * @tparam T bool, double, uint64_t, int64_t, std::string_view, const char *, dom::array, dom::object + * + * @returns The value cast to the given type, or: + * INCORRECT_TYPE if the value cannot be cast to the given type. + */ + + template + inline simdjson_result get() const noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get the value as the provided type (T). + * + * Supported types: + * - Boolean: bool + * - Number: double, uint64_t, int64_t + * - String: std::string_view, const char * + * - Array: dom::array + * - Object: dom::object + * + * @tparam T bool, double, uint64_t, int64_t, std::string_view, const char *, dom::array, dom::object + * + * @param value The variable to set to the value. May not be set if there is an error. + * + * @returns The error that occurred, or SUCCESS if there was no error. + */ + template + simdjson_warn_unused simdjson_inline error_code get(T &value) const noexcept; + + /** + * Get the value as the provided type (T), setting error if it's not the given type. + * + * Supported types: + * - Boolean: bool + * - Number: double, uint64_t, int64_t + * - String: std::string_view, const char * + * - Array: dom::array + * - Object: dom::object + * + * @tparam T bool, double, uint64_t, int64_t, std::string_view, const char *, dom::array, dom::object + * + * @param value The variable to set to the given type. value is undefined if there is an error. + * @param error The variable to store the error. error is set to error_code::SUCCEED if there is an error. + */ + template + inline void tie(T &value, error_code &error) && noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Read this element as a boolean. + * + * @return The boolean value + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not a boolean. + */ + inline operator bool() const noexcept(false); + + /** + * Read this element as a null-terminated UTF-8 string. + * + * Be mindful that JSON allows strings to contain null characters. + * + * Does *not* convert other types to a string; requires that the JSON type of the element was + * an actual string. + * + * @return The string value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not a string. + */ + inline explicit operator const char*() const noexcept(false); + + /** + * Read this element as a null-terminated UTF-8 string. + * + * Does *not* convert other types to a string; requires that the JSON type of the element was + * an actual string. + * + * @return The string value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not a string. + */ + inline operator std::string_view() const noexcept(false); + + /** + * Read this element as an unsigned integer. + * + * @return The integer value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not an integer + * @exception simdjson_error(NUMBER_OUT_OF_RANGE) if the integer doesn't fit in 64 bits or is negative + */ + inline operator uint64_t() const noexcept(false); + /** + * Read this element as an signed integer. + * + * @return The integer value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not an integer + * @exception simdjson_error(NUMBER_OUT_OF_RANGE) if the integer doesn't fit in 64 bits + */ + inline operator int64_t() const noexcept(false); + /** + * Read this element as an double. + * + * @return The double value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not a number + * @exception simdjson_error(NUMBER_OUT_OF_RANGE) if the integer doesn't fit in 64 bits or is negative + */ + inline operator double() const noexcept(false); + /** + * Read this element as a JSON array. + * + * @return The JSON array. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not an array + */ + inline operator array() const noexcept(false); + /** + * Read this element as a JSON object (key/value pairs). + * + * @return The JSON object. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not an object + */ + inline operator object() const noexcept(false); + + /** + * Iterate over each element in this array. + * + * @return The beginning of the iteration. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not an array + */ + inline dom::array::iterator begin() const noexcept(false); + + /** + * Iterate over each element in this array. + * + * @return The end of the iteration. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON element is not an array + */ + inline dom::array::iterator end() const noexcept(false); +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the value associated with the given key. + * + * The key will be matched against **unescaped** JSON: + * + * dom::parser parser; + * int64_t(parser.parse(R"({ "a\n": 1 })"_padded)["a\n"]) == 1 + * parser.parse(R"({ "a\n": 1 })"_padded)["a\\n"].get_uint64().error() == NO_SUCH_FIELD + * + * @return The value associated with this field, or: + * - NO_SUCH_FIELD if the field does not exist in the object + * - INCORRECT_TYPE if this is not an object + */ + inline simdjson_result operator[](std::string_view key) const noexcept; + + /** + * Get the value associated with the given key. + * + * The key will be matched against **unescaped** JSON: + * + * dom::parser parser; + * int64_t(parser.parse(R"({ "a\n": 1 })"_padded)["a\n"]) == 1 + * parser.parse(R"({ "a\n": 1 })"_padded)["a\\n"].get_uint64().error() == NO_SUCH_FIELD + * + * @return The value associated with this field, or: + * - NO_SUCH_FIELD if the field does not exist in the object + * - INCORRECT_TYPE if this is not an object + */ + inline simdjson_result operator[](const char *key) const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * dom::parser parser; + * element doc = parser.parse(R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded); + * doc.at_pointer("/foo/a/1") == 20 + * doc.at_pointer("/foo")["a"].at(1) == 20 + * doc.at_pointer("")["foo"]["a"].at(1) == 20 + * + * It is allowed for a key to be the empty string: + * + * dom::parser parser; + * object obj = parser.parse(R"({ "": { "a": [ 10, 20, 30 ] }})"_padded); + * obj.at_pointer("//a/1") == 20 + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(const std::string_view json_pointer) const noexcept; + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API + /** + * + * Version 0.4 of simdjson used an incorrect interpretation of the JSON Pointer standard + * and allowed the following : + * + * dom::parser parser; + * element doc = parser.parse(R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded); + * doc.at("foo/a/1") == 20 + * + * Though it is intuitive, it is not compliant with RFC 6901 + * https://tools.ietf.org/html/rfc6901 + * + * For standard compliance, use the at_pointer function instead. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + [[deprecated("For standard compliance, use at_pointer instead, and prefix your pointers with a slash '/', see RFC6901 ")]] + inline simdjson_result at(const std::string_view json_pointer) const noexcept; +#endif // SIMDJSON_DISABLE_DEPRECATED_API + + /** + * Get the value at the given index. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + inline simdjson_result at(size_t index) const noexcept; + + /** + * Get the value associated with the given key. + * + * The key will be matched against **unescaped** JSON: + * + * dom::parser parser; + * int64_t(parser.parse(R"({ "a\n": 1 })"_padded)["a\n"]) == 1 + * parser.parse(R"({ "a\n": 1 })"_padded)["a\\n"].get_uint64().error() == NO_SUCH_FIELD + * + * @return The value associated with this field, or: + * - NO_SUCH_FIELD if the field does not exist in the object + */ + inline simdjson_result at_key(std::string_view key) const noexcept; + + /** + * Get the value associated with the given key in a case-insensitive manner. + * + * Note: The key will be matched against **unescaped** JSON. + * + * @return The value associated with this field, or: + * - NO_SUCH_FIELD if the field does not exist in the object + */ + inline simdjson_result at_key_case_insensitive(std::string_view key) const noexcept; + + /** @private for debugging. Prints out the root element. */ + inline bool dump_raw_tape(std::ostream &out) const noexcept; + +private: + simdjson_inline element(const internal::tape_ref &tape) noexcept; + internal::tape_ref tape; + friend class document; + friend class object; + friend class array; + friend struct simdjson_result; + template + friend class simdjson::internal::string_builder; + +}; + +} // namespace dom + +/** The result of a JSON navigation that may fail. */ +template<> +struct simdjson_result : public internal::simdjson_result_base { +public: + simdjson_inline simdjson_result() noexcept; ///< @private + simdjson_inline simdjson_result(dom::element &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + simdjson_inline simdjson_result type() const noexcept; + template + simdjson_inline bool is() const noexcept; + template + simdjson_inline simdjson_result get() const noexcept; + template + simdjson_warn_unused simdjson_inline error_code get(T &value) const noexcept; + + simdjson_inline simdjson_result get_array() const noexcept; + simdjson_inline simdjson_result get_object() const noexcept; + simdjson_inline simdjson_result get_c_str() const noexcept; + simdjson_inline simdjson_result get_string_length() const noexcept; + simdjson_inline simdjson_result get_string() const noexcept; + simdjson_inline simdjson_result get_int64() const noexcept; + simdjson_inline simdjson_result get_uint64() const noexcept; + simdjson_inline simdjson_result get_double() const noexcept; + simdjson_inline simdjson_result get_bool() const noexcept; + + simdjson_inline bool is_array() const noexcept; + simdjson_inline bool is_object() const noexcept; + simdjson_inline bool is_string() const noexcept; + simdjson_inline bool is_int64() const noexcept; + simdjson_inline bool is_uint64() const noexcept; + simdjson_inline bool is_double() const noexcept; + simdjson_inline bool is_number() const noexcept; + simdjson_inline bool is_bool() const noexcept; + simdjson_inline bool is_null() const noexcept; + + simdjson_inline simdjson_result operator[](std::string_view key) const noexcept; + simdjson_inline simdjson_result operator[](const char *key) const noexcept; + simdjson_inline simdjson_result at_pointer(const std::string_view json_pointer) const noexcept; + [[deprecated("For standard compliance, use at_pointer instead, and prefix your pointers with a slash '/', see RFC6901 ")]] + simdjson_inline simdjson_result at(const std::string_view json_pointer) const noexcept; + simdjson_inline simdjson_result at(size_t index) const noexcept; + simdjson_inline simdjson_result at_key(std::string_view key) const noexcept; + simdjson_inline simdjson_result at_key_case_insensitive(std::string_view key) const noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator bool() const noexcept(false); + simdjson_inline explicit operator const char*() const noexcept(false); + simdjson_inline operator std::string_view() const noexcept(false); + simdjson_inline operator uint64_t() const noexcept(false); + simdjson_inline operator int64_t() const noexcept(false); + simdjson_inline operator double() const noexcept(false); + simdjson_inline operator dom::array() const noexcept(false); + simdjson_inline operator dom::object() const noexcept(false); + + simdjson_inline dom::array::iterator begin() const noexcept(false); + simdjson_inline dom::array::iterator end() const noexcept(false); +#endif // SIMDJSON_EXCEPTIONS +}; + + +} // namespace simdjson + +#endif // SIMDJSON_DOM_DOCUMENT_H +/* end file include/simdjson/dom/element.h */ +/* begin file include/simdjson/dom/object.h */ +#ifndef SIMDJSON_DOM_OBJECT_H +#define SIMDJSON_DOM_OBJECT_H + + +namespace simdjson { +namespace internal { +template +class string_builder; +} +namespace dom { + +class document; +class element; +class key_value_pair; + +/** + * JSON object. + */ +class object { +public: + /** Create a new, invalid object */ + simdjson_inline object() noexcept; + + class iterator { + public: + using value_type = key_value_pair; + using difference_type = std::ptrdiff_t; + + /** + * Get the actual key/value pair + */ + inline const value_type operator*() const noexcept; + /** + * Get the next key/value pair. + * + * Part of the std::iterator interface. + * + */ + inline iterator& operator++() noexcept; + /** + * Get the next key/value pair. + * + * Part of the std::iterator interface. + * + */ + inline iterator operator++(int) noexcept; + /** + * Check if these values come from the same place in the JSON. + * + * Part of the std::iterator interface. + */ + inline bool operator!=(const iterator& other) const noexcept; + inline bool operator==(const iterator& other) const noexcept; + + inline bool operator<(const iterator& other) const noexcept; + inline bool operator<=(const iterator& other) const noexcept; + inline bool operator>=(const iterator& other) const noexcept; + inline bool operator>(const iterator& other) const noexcept; + /** + * Get the key of this key/value pair. + */ + inline std::string_view key() const noexcept; + /** + * Get the length (in bytes) of the key in this key/value pair. + * You should expect this function to be faster than key().size(). + */ + inline uint32_t key_length() const noexcept; + /** + * Returns true if the key in this key/value pair is equal + * to the provided string_view. + */ + inline bool key_equals(std::string_view o) const noexcept; + /** + * Returns true if the key in this key/value pair is equal + * to the provided string_view in a case-insensitive manner. + * Case comparisons may only be handled correctly for ASCII strings. + */ + inline bool key_equals_case_insensitive(std::string_view o) const noexcept; + /** + * Get the key of this key/value pair. + */ + inline const char *key_c_str() const noexcept; + /** + * Get the value of this key/value pair. + */ + inline element value() const noexcept; + + iterator() noexcept = default; + iterator(const iterator&) noexcept = default; + iterator& operator=(const iterator&) noexcept = default; + private: + simdjson_inline iterator(const internal::tape_ref &tape) noexcept; + + internal::tape_ref tape; + + friend class object; + }; + + /** + * Return the first key/value pair. + * + * Part of the std::iterable interface. + */ + inline iterator begin() const noexcept; + /** + * One past the last key/value pair. + * + * Part of the std::iterable interface. + */ + inline iterator end() const noexcept; + /** + * Get the size of the object (number of keys). + * It is a saturated value with a maximum of 0xFFFFFF: if the value + * is 0xFFFFFF then the size is 0xFFFFFF or greater. + */ + inline size_t size() const noexcept; + /** + * Get the value associated with the given key. + * + * The key will be matched against **unescaped** JSON: + * + * dom::parser parser; + * int64_t(parser.parse(R"({ "a\n": 1 })"_padded)["a\n"]) == 1 + * parser.parse(R"({ "a\n": 1 })"_padded)["a\\n"].get_uint64().error() == NO_SUCH_FIELD + * + * This function has linear-time complexity: the keys are checked one by one. + * + * @return The value associated with this field, or: + * - NO_SUCH_FIELD if the field does not exist in the object + * - INCORRECT_TYPE if this is not an object + */ + inline simdjson_result operator[](std::string_view key) const noexcept; + + /** + * Get the value associated with the given key. + * + * The key will be matched against **unescaped** JSON: + * + * dom::parser parser; + * int64_t(parser.parse(R"({ "a\n": 1 })"_padded)["a\n"]) == 1 + * parser.parse(R"({ "a\n": 1 })"_padded)["a\\n"].get_uint64().error() == NO_SUCH_FIELD + * + * This function has linear-time complexity: the keys are checked one by one. + * + * @return The value associated with this field, or: + * - NO_SUCH_FIELD if the field does not exist in the object + * - INCORRECT_TYPE if this is not an object + */ + inline simdjson_result operator[](const char *key) const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * dom::parser parser; + * object obj = parser.parse(R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded); + * obj.at_pointer("/foo/a/1") == 20 + * obj.at_pointer("/foo")["a"].at(1) == 20 + * + * It is allowed for a key to be the empty string: + * + * dom::parser parser; + * object obj = parser.parse(R"({ "": { "a": [ 10, 20, 30 ] }})"_padded); + * obj.at_pointer("//a/1") == 20 + * obj.at_pointer("/")["a"].at(1) == 20 + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) const noexcept; + + /** + * Get the value associated with the given key. + * + * The key will be matched against **unescaped** JSON: + * + * dom::parser parser; + * int64_t(parser.parse(R"({ "a\n": 1 })"_padded)["a\n"]) == 1 + * parser.parse(R"({ "a\n": 1 })"_padded)["a\\n"].get_uint64().error() == NO_SUCH_FIELD + * + * This function has linear-time complexity: the keys are checked one by one. + * + * @return The value associated with this field, or: + * - NO_SUCH_FIELD if the field does not exist in the object + */ + inline simdjson_result at_key(std::string_view key) const noexcept; + + /** + * Get the value associated with the given key in a case-insensitive manner. + * It is only guaranteed to work over ASCII inputs. + * + * Note: The key will be matched against **unescaped** JSON. + * + * This function has linear-time complexity: the keys are checked one by one. + * + * @return The value associated with this field, or: + * - NO_SUCH_FIELD if the field does not exist in the object + */ + inline simdjson_result at_key_case_insensitive(std::string_view key) const noexcept; + +private: + simdjson_inline object(const internal::tape_ref &tape) noexcept; + + internal::tape_ref tape; + + friend class element; + friend struct simdjson_result; + template + friend class simdjson::internal::string_builder; +}; + +/** + * Key/value pair in an object. + */ +class key_value_pair { +public: + /** key in the key-value pair **/ + std::string_view key; + /** value in the key-value pair **/ + element value; + +private: + simdjson_inline key_value_pair(std::string_view _key, element _value) noexcept; + friend class object; +}; + +} // namespace dom + +/** The result of a JSON conversion that may fail. */ +template<> +struct simdjson_result : public internal::simdjson_result_base { +public: + simdjson_inline simdjson_result() noexcept; ///< @private + simdjson_inline simdjson_result(dom::object value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + inline simdjson_result operator[](std::string_view key) const noexcept; + inline simdjson_result operator[](const char *key) const noexcept; + inline simdjson_result at_pointer(std::string_view json_pointer) const noexcept; + inline simdjson_result at_key(std::string_view key) const noexcept; + inline simdjson_result at_key_case_insensitive(std::string_view key) const noexcept; + +#if SIMDJSON_EXCEPTIONS + inline dom::object::iterator begin() const noexcept(false); + inline dom::object::iterator end() const noexcept(false); + inline size_t size() const noexcept(false); +#endif // SIMDJSON_EXCEPTIONS +}; + +} // namespace simdjson + +#if defined(__cpp_lib_ranges) +#include + +namespace std { +namespace ranges { +template<> +inline constexpr bool enable_view = true; +#if SIMDJSON_EXCEPTIONS +template<> +inline constexpr bool enable_view> = true; +#endif // SIMDJSON_EXCEPTIONS +} // namespace ranges +} // namespace std +#endif // defined(__cpp_lib_ranges) + +#endif // SIMDJSON_DOM_OBJECT_H +/* end file include/simdjson/dom/object.h */ +/* begin file include/simdjson/dom/serialization.h */ +#ifndef SIMDJSON_SERIALIZATION_H +#define SIMDJSON_SERIALIZATION_H + +#include + +namespace simdjson { + +/** + * The string_builder template and mini_formatter class + * are not part of our public API and are subject to change + * at any time! + */ +namespace internal { + +class mini_formatter; + +/** + * @private The string_builder template allows us to construct + * a string from a document element. It is parametrized + * by a "formatter" which handles the details. Thus + * the string_builder template could support both minification + * and prettification, and various other tradeoffs. + */ +template +class string_builder { +public: + /** Construct an initially empty builder, would print the empty string **/ + string_builder() = default; + /** Append an element to the builder (to be printed) **/ + inline void append(simdjson::dom::element value); + /** Append an array to the builder (to be printed) **/ + inline void append(simdjson::dom::array value); + /** Append an object to the builder (to be printed) **/ + inline void append(simdjson::dom::object value); + /** Reset the builder (so that it would print the empty string) **/ + simdjson_inline void clear(); + /** + * Get access to the string. The string_view is owned by the builder + * and it is invalid to use it after the string_builder has been + * destroyed. + * However you can make a copy of the string_view on memory that you + * own. + */ + simdjson_inline std::string_view str() const; + /** Append a key_value_pair to the builder (to be printed) **/ + simdjson_inline void append(simdjson::dom::key_value_pair value); +private: + formatter format{}; +}; + +/** + * @private This is the class that we expect to use with the string_builder + * template. It tries to produce a compact version of the JSON element + * as quickly as possible. + */ +class mini_formatter { +public: + mini_formatter() = default; + /** Add a comma **/ + simdjson_inline void comma(); + /** Start an array, prints [ **/ + simdjson_inline void start_array(); + /** End an array, prints ] **/ + simdjson_inline void end_array(); + /** Start an array, prints { **/ + simdjson_inline void start_object(); + /** Start an array, prints } **/ + simdjson_inline void end_object(); + /** Prints a true **/ + simdjson_inline void true_atom(); + /** Prints a false **/ + simdjson_inline void false_atom(); + /** Prints a null **/ + simdjson_inline void null_atom(); + /** Prints a number **/ + simdjson_inline void number(int64_t x); + /** Prints a number **/ + simdjson_inline void number(uint64_t x); + /** Prints a number **/ + simdjson_inline void number(double x); + /** Prints a key (string + colon) **/ + simdjson_inline void key(std::string_view unescaped); + /** Prints a string. The string is escaped as needed. **/ + simdjson_inline void string(std::string_view unescaped); + /** Clears out the content. **/ + simdjson_inline void clear(); + /** + * Get access to the buffer, it is owned by the instance, but + * the user can make a copy. + **/ + simdjson_inline std::string_view str() const; + +private: + // implementation details (subject to change) + /** Prints one character **/ + simdjson_inline void one_char(char c); + /** Backing buffer **/ + std::vector buffer{}; // not ideal! +}; + +} // internal + +namespace dom { + +/** + * Print JSON to an output stream. + * + * @param out The output stream. + * @param value The element. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::element value) { + simdjson::internal::string_builder<> sb; + sb.append(value); + return (out << sb.str()); +} +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#endif +/** + * Print JSON to an output stream. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::array value) { + simdjson::internal::string_builder<> sb; + sb.append(value); + return (out << sb.str()); +} +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#endif +/** + * Print JSON to an output stream. + * + * @param out The output stream. + * @param value The object. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::object value) { + simdjson::internal::string_builder<> sb; + sb.append(value); + return (out << sb.str()); +} +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#endif +} // namespace dom + +/** + * Converts JSON to a string. + * + * dom::parser parser; + * element doc = parser.parse(" [ 1 , 2 , 3 ] "_padded); + * cout << to_string(doc) << endl; // prints [1,2,3] + * + */ +template +std::string to_string(T x) { + // in C++, to_string is standard: http://www.cplusplus.com/reference/string/to_string/ + // Currently minify and to_string are identical but in the future, they may + // differ. + simdjson::internal::string_builder<> sb; + sb.append(x); + std::string_view answer = sb.str(); + return std::string(answer.data(), answer.size()); +} +#if SIMDJSON_EXCEPTIONS +template +std::string to_string(simdjson_result x) { + if (x.error()) { throw simdjson_error(x.error()); } + return to_string(x.value()); +} +#endif + +/** + * Minifies a JSON element or document, printing the smallest possible valid JSON. + * + * dom::parser parser; + * element doc = parser.parse(" [ 1 , 2 , 3 ] "_padded); + * cout << minify(doc) << endl; // prints [1,2,3] + * + */ +template +std::string minify(T x) { + return to_string(x); +} + +#if SIMDJSON_EXCEPTIONS +template +std::string minify(simdjson_result x) { + if (x.error()) { throw simdjson_error(x.error()); } + return to_string(x.value()); +} +#endif + + +} // namespace simdjson + + +#endif +/* end file include/simdjson/dom/serialization.h */ + +// Deprecated API +/* begin file include/simdjson/dom/jsonparser.h */ +// TODO Remove this -- deprecated API and files + +#ifndef SIMDJSON_DOM_JSONPARSER_H +#define SIMDJSON_DOM_JSONPARSER_H + +/* begin file include/simdjson/dom/parsedjson.h */ +// TODO Remove this -- deprecated API and files + +#ifndef SIMDJSON_DOM_PARSEDJSON_H +#define SIMDJSON_DOM_PARSEDJSON_H + + +namespace simdjson { + +/** + * @deprecated Use `dom::parser` instead. + */ +using ParsedJson [[deprecated("Use dom::parser instead")]] = dom::parser; + +} // namespace simdjson + +#endif // SIMDJSON_DOM_PARSEDJSON_H +/* end file include/simdjson/dom/parsedjson.h */ +/* begin file include/simdjson/jsonioutil.h */ +#ifndef SIMDJSON_JSONIOUTIL_H +#define SIMDJSON_JSONIOUTIL_H + + +namespace simdjson { + +#if SIMDJSON_EXCEPTIONS +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +[[deprecated("Use padded_string::load() instead")]] +inline padded_string get_corpus(const char *path) { + return padded_string::load(path); +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API +#endif // SIMDJSON_EXCEPTIONS + +} // namespace simdjson + +#endif // SIMDJSON_JSONIOUTIL_H +/* end file include/simdjson/jsonioutil.h */ + +namespace simdjson { + +// +// C API (json_parse and build_parsed_json) declarations +// + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +[[deprecated("Use parser.parse() instead")]] +inline int json_parse(const uint8_t *buf, size_t len, dom::parser &parser, bool realloc_if_needed = true) noexcept { + error_code code = parser.parse(buf, len, realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return code; +} +[[deprecated("Use parser.parse() instead")]] +inline int json_parse(const char *buf, size_t len, dom::parser &parser, bool realloc_if_needed = true) noexcept { + error_code code = parser.parse(buf, len, realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return code; +} +[[deprecated("Use parser.parse() instead")]] +inline int json_parse(const std::string &s, dom::parser &parser, bool realloc_if_needed = true) noexcept { + error_code code = parser.parse(s.data(), s.length(), realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return code; +} +[[deprecated("Use parser.parse() instead")]] +inline int json_parse(const padded_string &s, dom::parser &parser) noexcept { + error_code code = parser.parse(s).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return code; +} + +[[deprecated("Use parser.parse() instead")]] +simdjson_warn_unused inline dom::parser build_parsed_json(const uint8_t *buf, size_t len, bool realloc_if_needed = true) noexcept { + dom::parser parser; + error_code code = parser.parse(buf, len, realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return parser; +} +[[deprecated("Use parser.parse() instead")]] +simdjson_warn_unused inline dom::parser build_parsed_json(const char *buf, size_t len, bool realloc_if_needed = true) noexcept { + dom::parser parser; + error_code code = parser.parse(buf, len, realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return parser; +} +[[deprecated("Use parser.parse() instead")]] +simdjson_warn_unused inline dom::parser build_parsed_json(const std::string &s, bool realloc_if_needed = true) noexcept { + dom::parser parser; + error_code code = parser.parse(s.data(), s.length(), realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return parser; +} +[[deprecated("Use parser.parse() instead")]] +simdjson_warn_unused inline dom::parser build_parsed_json(const padded_string &s) noexcept { + dom::parser parser; + error_code code = parser.parse(s).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return parser; +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API + +/** @private We do not want to allow implicit conversion from C string to std::string. */ +int json_parse(const char *buf, dom::parser &parser) noexcept = delete; +/** @private We do not want to allow implicit conversion from C string to std::string. */ +dom::parser build_parsed_json(const char *buf) noexcept = delete; + +} // namespace simdjson + +#endif // SIMDJSON_DOM_JSONPARSER_H +/* end file include/simdjson/dom/jsonparser.h */ +/* begin file include/simdjson/dom/parsedjson_iterator.h */ +// TODO Remove this -- deprecated API and files + +#ifndef SIMDJSON_DOM_PARSEDJSON_ITERATOR_H +#define SIMDJSON_DOM_PARSEDJSON_ITERATOR_H + +#include +#include +#include +#include +#include +#include + +/* begin file include/simdjson/internal/jsonformatutils.h */ +#ifndef SIMDJSON_INTERNAL_JSONFORMATUTILS_H +#define SIMDJSON_INTERNAL_JSONFORMATUTILS_H + +#include +#include +#include + +namespace simdjson { +namespace internal { + +class escape_json_string; + +inline std::ostream& operator<<(std::ostream& out, const escape_json_string &str); + +class escape_json_string { +public: + escape_json_string(std::string_view _str) noexcept : str{_str} {} + operator std::string() const noexcept { std::stringstream s; s << *this; return s.str(); } +private: + std::string_view str; + friend std::ostream& operator<<(std::ostream& out, const escape_json_string &unescaped); +}; + +inline std::ostream& operator<<(std::ostream& out, const escape_json_string &unescaped) { + for (size_t i=0; i(unescaped.str[i]) <= 0x1F) { + // TODO can this be done once at the beginning, or will it mess up << char? + std::ios::fmtflags f(out.flags()); + out << "\\u" << std::hex << std::setw(4) << std::setfill('0') << int(unescaped.str[i]); + out.flags(f); + } else { + out << unescaped.str[i]; + } + } + } + return out; +} + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_JSONFORMATUTILS_H +/* end file include/simdjson/internal/jsonformatutils.h */ + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API + +namespace simdjson { +/** @private **/ +class [[deprecated("Use the new DOM navigation API instead (see doc/basics.md)")]] dom::parser::Iterator { +public: + inline Iterator(const dom::parser &parser) noexcept(false); + inline Iterator(const Iterator &o) noexcept; + inline ~Iterator() noexcept; + + inline Iterator& operator=(const Iterator&) = delete; + + inline bool is_ok() const; + + // useful for debugging purposes + inline size_t get_tape_location() const; + + // useful for debugging purposes + inline size_t get_tape_length() const; + + // returns the current depth (start at 1 with 0 reserved for the fictitious + // root node) + inline size_t get_depth() const; + + // A scope is a series of nodes at the same depth, typically it is either an + // object ({) or an array ([). The root node has type 'r'. + inline uint8_t get_scope_type() const; + + // move forward in document order + inline bool move_forward(); + + // retrieve the character code of what we're looking at: + // [{"slutfn are the possibilities + inline uint8_t get_type() const { + return current_type; // short functions should be inlined! + } + + // get the int64_t value at this node; valid only if get_type is "l" + inline int64_t get_integer() const { + if (location + 1 >= tape_length) { + return 0; // default value in case of error + } + return static_cast(doc.tape[location + 1]); + } + + // get the value as uint64; valid only if if get_type is "u" + inline uint64_t get_unsigned_integer() const { + if (location + 1 >= tape_length) { + return 0; // default value in case of error + } + return doc.tape[location + 1]; + } + + // get the string value at this node (NULL ended); valid only if get_type is " + // note that tabs, and line endings are escaped in the returned value (see + // print_with_escapes) return value is valid UTF-8, it may contain NULL chars + // within the string: get_string_length determines the true string length. + inline const char *get_string() const { + return reinterpret_cast( + doc.string_buf.get() + (current_val & internal::JSON_VALUE_MASK) + sizeof(uint32_t)); + } + + // return the length of the string in bytes + inline uint32_t get_string_length() const { + uint32_t answer; + std::memcpy(&answer, + reinterpret_cast(doc.string_buf.get() + + (current_val & internal::JSON_VALUE_MASK)), + sizeof(uint32_t)); + return answer; + } + + // get the double value at this node; valid only if + // get_type() is "d" + inline double get_double() const { + if (location + 1 >= tape_length) { + return std::numeric_limits::quiet_NaN(); // default value in + // case of error + } + double answer; + std::memcpy(&answer, &doc.tape[location + 1], sizeof(answer)); + return answer; + } + + inline bool is_object_or_array() const { return is_object() || is_array(); } + + inline bool is_object() const { return get_type() == '{'; } + + inline bool is_array() const { return get_type() == '['; } + + inline bool is_string() const { return get_type() == '"'; } + + // Returns true if the current type of the node is an signed integer. + // You can get its value with `get_integer()`. + inline bool is_integer() const { return get_type() == 'l'; } + + // Returns true if the current type of the node is an unsigned integer. + // You can get its value with `get_unsigned_integer()`. + // + // NOTE: + // Only a large value, which is out of range of a 64-bit signed integer, is + // represented internally as an unsigned node. On the other hand, a typical + // positive integer, such as 1, 42, or 1000000, is as a signed node. + // Be aware this function returns false for a signed node. + inline bool is_unsigned_integer() const { return get_type() == 'u'; } + // Returns true if the current type of the node is a double floating-point number. + inline bool is_double() const { return get_type() == 'd'; } + // Returns true if the current type of the node is a number (integer or floating-point). + inline bool is_number() const { + return is_integer() || is_unsigned_integer() || is_double(); + } + // Returns true if the current type of the node is a bool with true value. + inline bool is_true() const { return get_type() == 't'; } + // Returns true if the current type of the node is a bool with false value. + inline bool is_false() const { return get_type() == 'f'; } + // Returns true if the current type of the node is null. + inline bool is_null() const { return get_type() == 'n'; } + // Returns true if the type byte represents an object of an array + static bool is_object_or_array(uint8_t type) { + return ((type == '[') || (type == '{')); + } + + // when at {, go one level deep, looking for a given key + // if successful, we are left pointing at the value, + // if not, we are still pointing at the object ({) + // (in case of repeated keys, this only finds the first one). + // We seek the key using C's strcmp so if your JSON strings contain + // NULL chars, this would trigger a false positive: if you expect that + // to be the case, take extra precautions. + // Furthermore, we do the comparison character-by-character + // without taking into account Unicode equivalence. + inline bool move_to_key(const char *key); + + // as above, but case insensitive lookup (strcmpi instead of strcmp) + inline bool move_to_key_insensitive(const char *key); + + // when at {, go one level deep, looking for a given key + // if successful, we are left pointing at the value, + // if not, we are still pointing at the object ({) + // (in case of repeated keys, this only finds the first one). + // The string we search for can contain NULL values. + // Furthermore, we do the comparison character-by-character + // without taking into account Unicode equivalence. + inline bool move_to_key(const char *key, uint32_t length); + + // when at a key location within an object, this moves to the accompanying + // value (located next to it). This is equivalent but much faster than + // calling "next()". + inline void move_to_value(); + + // when at [, go one level deep, and advance to the given index. + // if successful, we are left pointing at the value, + // if not, we are still pointing at the array ([) + inline bool move_to_index(uint32_t index); + + // Moves the iterator to the value corresponding to the json pointer. + // Always search from the root of the document. + // if successful, we are left pointing at the value, + // if not, we are still pointing the same value we were pointing before the + // call. The json pointer follows the rfc6901 standard's syntax: + // https://tools.ietf.org/html/rfc6901 However, the standard says "If a + // referenced member name is not unique in an object, the member that is + // referenced is undefined, and evaluation fails". Here we just return the + // first corresponding value. The length parameter is the length of the + // jsonpointer string ('pointer'). + inline bool move_to(const char *pointer, uint32_t length); + + // Moves the iterator to the value corresponding to the json pointer. + // Always search from the root of the document. + // if successful, we are left pointing at the value, + // if not, we are still pointing the same value we were pointing before the + // call. The json pointer implementation follows the rfc6901 standard's + // syntax: https://tools.ietf.org/html/rfc6901 However, the standard says + // "If a referenced member name is not unique in an object, the member that + // is referenced is undefined, and evaluation fails". Here we just return + // the first corresponding value. + inline bool move_to(const std::string &pointer) { + return move_to(pointer.c_str(), uint32_t(pointer.length())); + } + + private: + // Almost the same as move_to(), except it searches from the current + // position. The pointer's syntax is identical, though that case is not + // handled by the rfc6901 standard. The '/' is still required at the + // beginning. However, contrary to move_to(), the URI Fragment Identifier + // Representation is not supported here. Also, in case of failure, we are + // left pointing at the closest value it could reach. For these reasons it + // is private. It exists because it is used by move_to(). + inline bool relative_move_to(const char *pointer, uint32_t length); + + public: + // throughout return true if we can do the navigation, false + // otherwise + + // Within a given scope (series of nodes at the same depth within either an + // array or an object), we move forward. + // Thus, given [true, null, {"a":1}, [1,2]], we would visit true, null, { + // and [. At the object ({) or at the array ([), you can issue a "down" to + // visit their content. valid if we're not at the end of a scope (returns + // true). + inline bool next(); + + // Within a given scope (series of nodes at the same depth within either an + // array or an object), we move backward. + // Thus, given [true, null, {"a":1}, [1,2]], we would visit ], }, null, true + // when starting at the end of the scope. At the object ({) or at the array + // ([), you can issue a "down" to visit their content. + // Performance warning: This function is implemented by starting again + // from the beginning of the scope and scanning forward. You should expect + // it to be relatively slow. + inline bool prev(); + + // Moves back to either the containing array or object (type { or [) from + // within a contained scope. + // Valid unless we are at the first level of the document + inline bool up(); + + // Valid if we're at a [ or { and it starts a non-empty scope; moves us to + // start of that deeper scope if it not empty. Thus, given [true, null, + // {"a":1}, [1,2]], if we are at the { node, we would move to the "a" node. + inline bool down(); + + // move us to the start of our current scope, + // a scope is a series of nodes at the same level + inline void to_start_scope(); + + inline void rewind() { + while (up()) + ; + } + + + + // print the node we are currently pointing at + inline bool print(std::ostream &os, bool escape_strings = true) const; + + private: + const document &doc; + size_t max_depth{}; + size_t depth{}; + size_t location{}; // our current location on a tape + size_t tape_length{}; + uint8_t current_type{}; + uint64_t current_val{}; + typedef struct { + size_t start_of_scope; + uint8_t scope_type; + } scopeindex_t; + + scopeindex_t *depth_index{}; +}; + +} // namespace simdjson +#endif // SIMDJSON_DISABLE_DEPRECATED_API + +#endif // SIMDJSON_DOM_PARSEDJSON_ITERATOR_H +/* end file include/simdjson/dom/parsedjson_iterator.h */ + +// Inline functions +/* begin file include/simdjson/dom/array-inl.h */ +#ifndef SIMDJSON_INLINE_ARRAY_H +#define SIMDJSON_INLINE_ARRAY_H + +// Inline implementations go in here. + +#include + +namespace simdjson { + +// +// simdjson_result inline implementation +// +simdjson_inline simdjson_result::simdjson_result() noexcept + : internal::simdjson_result_base() {} +simdjson_inline simdjson_result::simdjson_result(dom::array value) noexcept + : internal::simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : internal::simdjson_result_base(error) {} + +#if SIMDJSON_EXCEPTIONS + +inline dom::array::iterator simdjson_result::begin() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.begin(); +} +inline dom::array::iterator simdjson_result::end() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.end(); +} +inline size_t simdjson_result::size() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.size(); +} + +#endif // SIMDJSON_EXCEPTIONS + +inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) const noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +inline simdjson_result simdjson_result::at(size_t index) const noexcept { + if (error()) { return error(); } + return first.at(index); +} + +namespace dom { + +// +// array inline implementation +// +simdjson_inline array::array() noexcept : tape{} {} +simdjson_inline array::array(const internal::tape_ref &_tape) noexcept : tape{_tape} {} +inline array::iterator array::begin() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return internal::tape_ref(tape.doc, tape.json_index + 1); +} +inline array::iterator array::end() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return internal::tape_ref(tape.doc, tape.after_element() - 1); +} +inline size_t array::size() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return tape.scope_count(); +} +inline size_t array::number_of_slots() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return tape.matching_brace_index() - tape.json_index; +} +inline simdjson_result array::at_pointer(std::string_view json_pointer) const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + if(json_pointer.empty()) { // an empty string means that we return the current node + return element(this->tape); // copy the current node + } else if(json_pointer[0] != '/') { // otherwise there is an error + return INVALID_JSON_POINTER; + } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } + + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } + + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" + + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + + // Get the child + auto child = array(tape).at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; + } + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); + } + return child; +} + +inline simdjson_result array::at(size_t index) const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + size_t i=0; + for (auto element : *this) { + if (i == index) { return element; } + i++; + } + return INDEX_OUT_OF_BOUNDS; +} + +// +// array::iterator inline implementation +// +simdjson_inline array::iterator::iterator(const internal::tape_ref &_tape) noexcept : tape{_tape} { } +inline element array::iterator::operator*() const noexcept { + return element(tape); +} +inline array::iterator& array::iterator::operator++() noexcept { + tape.json_index = tape.after_element(); + return *this; +} +inline array::iterator array::iterator::operator++(int) noexcept { + array::iterator out = *this; + ++*this; + return out; +} +inline bool array::iterator::operator!=(const array::iterator& other) const noexcept { + return tape.json_index != other.tape.json_index; +} +inline bool array::iterator::operator==(const array::iterator& other) const noexcept { + return tape.json_index == other.tape.json_index; +} +inline bool array::iterator::operator<(const array::iterator& other) const noexcept { + return tape.json_index < other.tape.json_index; +} +inline bool array::iterator::operator<=(const array::iterator& other) const noexcept { + return tape.json_index <= other.tape.json_index; +} +inline bool array::iterator::operator>=(const array::iterator& other) const noexcept { + return tape.json_index >= other.tape.json_index; +} +inline bool array::iterator::operator>(const array::iterator& other) const noexcept { + return tape.json_index > other.tape.json_index; +} + +} // namespace dom + + +} // namespace simdjson + +/* begin file include/simdjson/dom/element-inl.h */ +#ifndef SIMDJSON_INLINE_ELEMENT_H +#define SIMDJSON_INLINE_ELEMENT_H + +#include +#include + +namespace simdjson { + +// +// simdjson_result inline implementation +// +simdjson_inline simdjson_result::simdjson_result() noexcept + : internal::simdjson_result_base() {} +simdjson_inline simdjson_result::simdjson_result(dom::element &&value) noexcept + : internal::simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : internal::simdjson_result_base(error) {} +inline simdjson_result simdjson_result::type() const noexcept { + if (error()) { return error(); } + return first.type(); +} + +template +simdjson_inline bool simdjson_result::is() const noexcept { + return !error() && first.is(); +} +template +simdjson_inline simdjson_result simdjson_result::get() const noexcept { + if (error()) { return error(); } + return first.get(); +} +template +simdjson_warn_unused simdjson_inline error_code simdjson_result::get(T &value) const noexcept { + if (error()) { return error(); } + return first.get(value); +} + +simdjson_inline simdjson_result simdjson_result::get_array() const noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() const noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_c_str() const noexcept { + if (error()) { return error(); } + return first.get_c_str(); +} +simdjson_inline simdjson_result simdjson_result::get_string_length() const noexcept { + if (error()) { return error(); } + return first.get_string_length(); +} +simdjson_inline simdjson_result simdjson_result::get_string() const noexcept { + if (error()) { return error(); } + return first.get_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() const noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() const noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_double() const noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() const noexcept { + if (error()) { return error(); } + return first.get_bool(); +} + +simdjson_inline bool simdjson_result::is_array() const noexcept { + return !error() && first.is_array(); +} +simdjson_inline bool simdjson_result::is_object() const noexcept { + return !error() && first.is_object(); +} +simdjson_inline bool simdjson_result::is_string() const noexcept { + return !error() && first.is_string(); +} +simdjson_inline bool simdjson_result::is_int64() const noexcept { + return !error() && first.is_int64(); +} +simdjson_inline bool simdjson_result::is_uint64() const noexcept { + return !error() && first.is_uint64(); +} +simdjson_inline bool simdjson_result::is_double() const noexcept { + return !error() && first.is_double(); +} +simdjson_inline bool simdjson_result::is_number() const noexcept { + return !error() && first.is_number(); +} +simdjson_inline bool simdjson_result::is_bool() const noexcept { + return !error() && first.is_bool(); +} + +simdjson_inline bool simdjson_result::is_null() const noexcept { + return !error() && first.is_null(); +} + +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) const noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) const noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::at_pointer(const std::string_view json_pointer) const noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +[[deprecated("For standard compliance, use at_pointer instead, and prefix your pointers with a slash '/', see RFC6901 ")]] +simdjson_inline simdjson_result simdjson_result::at(const std::string_view json_pointer) const noexcept { +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_DEPRECATED_WARNING + if (error()) { return error(); } + return first.at(json_pointer); +SIMDJSON_POP_DISABLE_WARNINGS +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API +simdjson_inline simdjson_result simdjson_result::at(size_t index) const noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::at_key(std::string_view key) const noexcept { + if (error()) { return error(); } + return first.at_key(key); +} +simdjson_inline simdjson_result simdjson_result::at_key_case_insensitive(std::string_view key) const noexcept { + if (error()) { return error(); } + return first.at_key_case_insensitive(key); +} + +#if SIMDJSON_EXCEPTIONS + +simdjson_inline simdjson_result::operator bool() const noexcept(false) { + return get(); +} +simdjson_inline simdjson_result::operator const char *() const noexcept(false) { + return get(); +} +simdjson_inline simdjson_result::operator std::string_view() const noexcept(false) { + return get(); +} +simdjson_inline simdjson_result::operator uint64_t() const noexcept(false) { + return get(); +} +simdjson_inline simdjson_result::operator int64_t() const noexcept(false) { + return get(); +} +simdjson_inline simdjson_result::operator double() const noexcept(false) { + return get(); +} +simdjson_inline simdjson_result::operator dom::array() const noexcept(false) { + return get(); +} +simdjson_inline simdjson_result::operator dom::object() const noexcept(false) { + return get(); +} + +simdjson_inline dom::array::iterator simdjson_result::begin() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.begin(); +} +simdjson_inline dom::array::iterator simdjson_result::end() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.end(); +} + +#endif // SIMDJSON_EXCEPTIONS + +namespace dom { + +// +// element inline implementation +// +simdjson_inline element::element() noexcept : tape{} {} +simdjson_inline element::element(const internal::tape_ref &_tape) noexcept : tape{_tape} { } + +inline element_type element::type() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + auto tape_type = tape.tape_ref_type(); + return tape_type == internal::tape_type::FALSE_VALUE ? element_type::BOOL : static_cast(tape_type); +} + +inline simdjson_result element::get_bool() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + if(tape.is_true()) { + return true; + } else if(tape.is_false()) { + return false; + } + return INCORRECT_TYPE; +} +inline simdjson_result element::get_c_str() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + switch (tape.tape_ref_type()) { + case internal::tape_type::STRING: { + return tape.get_c_str(); + } + default: + return INCORRECT_TYPE; + } +} +inline simdjson_result element::get_string_length() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + switch (tape.tape_ref_type()) { + case internal::tape_type::STRING: { + return tape.get_string_length(); + } + default: + return INCORRECT_TYPE; + } +} +inline simdjson_result element::get_string() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + switch (tape.tape_ref_type()) { + case internal::tape_type::STRING: + return tape.get_string_view(); + default: + return INCORRECT_TYPE; + } +} +inline simdjson_result element::get_uint64() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + if(simdjson_unlikely(!tape.is_uint64())) { // branch rarely taken + if(tape.is_int64()) { + int64_t result = tape.next_tape_value(); + if (result < 0) { + return NUMBER_OUT_OF_RANGE; + } + return uint64_t(result); + } + return INCORRECT_TYPE; + } + return tape.next_tape_value(); +} +inline simdjson_result element::get_int64() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + if(simdjson_unlikely(!tape.is_int64())) { // branch rarely taken + if(tape.is_uint64()) { + uint64_t result = tape.next_tape_value(); + // Wrapping max in parens to handle Windows issue: https://stackoverflow.com/questions/11544073/how-do-i-deal-with-the-max-macro-in-windows-h-colliding-with-max-in-std + if (result > uint64_t((std::numeric_limits::max)())) { + return NUMBER_OUT_OF_RANGE; + } + return static_cast(result); + } + return INCORRECT_TYPE; + } + return tape.next_tape_value(); +} +inline simdjson_result element::get_double() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + // Performance considerations: + // 1. Querying tape_ref_type() implies doing a shift, it is fast to just do a straight + // comparison. + // 2. Using a switch-case relies on the compiler guessing what kind of code generation + // we want... But the compiler cannot know that we expect the type to be "double" + // most of the time. + // We can expect get to refer to a double type almost all the time. + // It is important to craft the code accordingly so that the compiler can use this + // information. (This could also be solved with profile-guided optimization.) + if(simdjson_unlikely(!tape.is_double())) { // branch rarely taken + if(tape.is_uint64()) { + return double(tape.next_tape_value()); + } else if(tape.is_int64()) { + return double(tape.next_tape_value()); + } + return INCORRECT_TYPE; + } + // this is common: + return tape.next_tape_value(); +} +inline simdjson_result element::get_array() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + switch (tape.tape_ref_type()) { + case internal::tape_type::START_ARRAY: + return array(tape); + default: + return INCORRECT_TYPE; + } +} +inline simdjson_result element::get_object() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + switch (tape.tape_ref_type()) { + case internal::tape_type::START_OBJECT: + return object(tape); + default: + return INCORRECT_TYPE; + } +} + +template +simdjson_warn_unused simdjson_inline error_code element::get(T &value) const noexcept { + return get().get(value); +} +// An element-specific version prevents recursion with simdjson_result::get(value) +template<> +simdjson_warn_unused simdjson_inline error_code element::get(element &value) const noexcept { + value = element(tape); + return SUCCESS; +} +template +inline void element::tie(T &value, error_code &error) && noexcept { + error = get(value); +} + +template +simdjson_inline bool element::is() const noexcept { + auto result = get(); + return !result.error(); +} + +template<> inline simdjson_result element::get() const noexcept { return get_array(); } +template<> inline simdjson_result element::get() const noexcept { return get_object(); } +template<> inline simdjson_result element::get() const noexcept { return get_c_str(); } +template<> inline simdjson_result element::get() const noexcept { return get_string(); } +template<> inline simdjson_result element::get() const noexcept { return get_int64(); } +template<> inline simdjson_result element::get() const noexcept { return get_uint64(); } +template<> inline simdjson_result element::get() const noexcept { return get_double(); } +template<> inline simdjson_result element::get() const noexcept { return get_bool(); } + +inline bool element::is_array() const noexcept { return is(); } +inline bool element::is_object() const noexcept { return is(); } +inline bool element::is_string() const noexcept { return is(); } +inline bool element::is_int64() const noexcept { return is(); } +inline bool element::is_uint64() const noexcept { return is(); } +inline bool element::is_double() const noexcept { return is(); } +inline bool element::is_bool() const noexcept { return is(); } +inline bool element::is_number() const noexcept { return is_int64() || is_uint64() || is_double(); } + +inline bool element::is_null() const noexcept { + return tape.is_null_on_tape(); +} + +#if SIMDJSON_EXCEPTIONS + +inline element::operator bool() const noexcept(false) { return get(); } +inline element::operator const char*() const noexcept(false) { return get(); } +inline element::operator std::string_view() const noexcept(false) { return get(); } +inline element::operator uint64_t() const noexcept(false) { return get(); } +inline element::operator int64_t() const noexcept(false) { return get(); } +inline element::operator double() const noexcept(false) { return get(); } +inline element::operator array() const noexcept(false) { return get(); } +inline element::operator object() const noexcept(false) { return get(); } + +inline array::iterator element::begin() const noexcept(false) { + return get().begin(); +} +inline array::iterator element::end() const noexcept(false) { + return get().end(); +} + +#endif // SIMDJSON_EXCEPTIONS + +inline simdjson_result element::operator[](std::string_view key) const noexcept { + return at_key(key); +} +inline simdjson_result element::operator[](const char *key) const noexcept { + return at_key(key); +} + +inline simdjson_result element::at_pointer(std::string_view json_pointer) const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + switch (tape.tape_ref_type()) { + case internal::tape_type::START_OBJECT: + return object(tape).at_pointer(json_pointer); + case internal::tape_type::START_ARRAY: + return array(tape).at_pointer(json_pointer); + default: { + if(!json_pointer.empty()) { // a non-empty string is invalid on an atom + return INVALID_JSON_POINTER; + } + // an empty string means that we return the current node + dom::element copy(*this); + return simdjson_result(std::move(copy)); + } + } +} +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +[[deprecated("For standard compliance, use at_pointer instead, and prefix your pointers with a slash '/', see RFC6901 ")]] +inline simdjson_result element::at(std::string_view json_pointer) const noexcept { + // version 0.4 of simdjson allowed non-compliant pointers + auto std_pointer = (json_pointer.empty() ? "" : "/") + std::string(json_pointer.begin(), json_pointer.end()); + return at_pointer(std_pointer); +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API + +inline simdjson_result element::at(size_t index) const noexcept { + return get().at(index); +} +inline simdjson_result element::at_key(std::string_view key) const noexcept { + return get().at_key(key); +} +inline simdjson_result element::at_key_case_insensitive(std::string_view key) const noexcept { + return get().at_key_case_insensitive(key); +} + +inline bool element::dump_raw_tape(std::ostream &out) const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return tape.doc->dump_raw_tape(out); +} + + +inline std::ostream& operator<<(std::ostream& out, element_type type) { + switch (type) { + case element_type::ARRAY: + return out << "array"; + case element_type::OBJECT: + return out << "object"; + case element_type::INT64: + return out << "int64_t"; + case element_type::UINT64: + return out << "uint64_t"; + case element_type::DOUBLE: + return out << "double"; + case element_type::STRING: + return out << "string"; + case element_type::BOOL: + return out << "bool"; + case element_type::NULL_VALUE: + return out << "null"; + default: + return out << "unexpected content!!!"; // abort() usage is forbidden in the library + } +} + +} // namespace dom + +} // namespace simdjson + +#endif // SIMDJSON_INLINE_ELEMENT_H +/* end file include/simdjson/dom/element-inl.h */ + +#if defined(__cpp_lib_ranges) +static_assert(std::ranges::view); +static_assert(std::ranges::sized_range); +#if SIMDJSON_EXCEPTIONS +static_assert(std::ranges::view>); +static_assert(std::ranges::sized_range>); +#endif // SIMDJSON_EXCEPTIONS +#endif // defined(__cpp_lib_ranges) + +#endif // SIMDJSON_INLINE_ARRAY_H +/* end file include/simdjson/dom/array-inl.h */ +/* begin file include/simdjson/dom/document_stream-inl.h */ +#ifndef SIMDJSON_INLINE_DOCUMENT_STREAM_H +#define SIMDJSON_INLINE_DOCUMENT_STREAM_H + +#include +#include +#include +namespace simdjson { +namespace dom { + +#ifdef SIMDJSON_THREADS_ENABLED +inline void stage1_worker::finish() { + // After calling "run" someone would call finish() to wait + // for the end of the processing. + // This function will wait until either the thread has done + // the processing or, else, the destructor has been called. + std::unique_lock lock(locking_mutex); + cond_var.wait(lock, [this]{return has_work == false;}); +} + +inline stage1_worker::~stage1_worker() { + // The thread may never outlive the stage1_worker instance + // and will always be stopped/joined before the stage1_worker + // instance is gone. + stop_thread(); +} + +inline void stage1_worker::start_thread() { + std::unique_lock lock(locking_mutex); + if(thread.joinable()) { + return; // This should never happen but we never want to create more than one thread. + } + thread = std::thread([this]{ + while(true) { + std::unique_lock thread_lock(locking_mutex); + // We wait for either "run" or "stop_thread" to be called. + cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); + // If, for some reason, the stop_thread() method was called (i.e., the + // destructor of stage1_worker is called, then we want to immediately destroy + // the thread (and not do any more processing). + if(!can_work) { + break; + } + this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, + this->_next_batch_start); + this->has_work = false; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify "finish" + thread_lock.unlock(); + } + } + ); +} + + +inline void stage1_worker::stop_thread() { + std::unique_lock lock(locking_mutex); + // We have to make sure that all locks can be released. + can_work = false; + has_work = false; + cond_var.notify_all(); + lock.unlock(); + if(thread.joinable()) { + thread.join(); + } +} + +inline void stage1_worker::run(document_stream * ds, dom::parser * stage1, size_t next_batch_start) { + std::unique_lock lock(locking_mutex); + owner = ds; + _next_batch_start = next_batch_start; + stage1_thread_parser = stage1; + has_work = true; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify the thread lock that we have work + lock.unlock(); +} +#endif + +simdjson_inline document_stream::document_stream( + dom::parser &_parser, + const uint8_t *_buf, + size_t _len, + size_t _batch_size +) noexcept + : parser{&_parser}, + buf{_buf}, + len{_len}, + batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, + error{SUCCESS} +#ifdef SIMDJSON_THREADS_ENABLED + , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change +#endif +{ +#ifdef SIMDJSON_THREADS_ENABLED + if(worker.get() == nullptr) { + error = MEMALLOC; + } +#endif +} + +simdjson_inline document_stream::document_stream() noexcept + : parser{nullptr}, + buf{nullptr}, + len{0}, + batch_size{0}, + error{UNINITIALIZED} +#ifdef SIMDJSON_THREADS_ENABLED + , use_thread(false) +#endif +{ +} + +simdjson_inline document_stream::~document_stream() noexcept { +#ifdef SIMDJSON_THREADS_ENABLED + worker.reset(); +#endif +} + +simdjson_inline document_stream::iterator::iterator() noexcept + : stream{nullptr}, finished{true} { +} + +simdjson_inline document_stream::iterator document_stream::begin() noexcept { + start(); + // If there are no documents, we're finished. + return iterator(this, error == EMPTY); +} + +simdjson_inline document_stream::iterator document_stream::end() noexcept { + return iterator(this, true); +} + +simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept + : stream{_stream}, finished{is_end} { +} + +simdjson_inline document_stream::iterator::reference document_stream::iterator::operator*() noexcept { + // Note that in case of error, we do not yet mark + // the iterator as "finished": this detection is done + // in the operator++ function since it is possible + // to call operator++ repeatedly while omitting + // calls to operator*. + if (stream->error) { return stream->error; } + return stream->parser->doc.root(); +} + +simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { + // If there is an error, then we want the iterator + // to be finished, no matter what. (E.g., we do not + // keep generating documents with errors, or go beyond + // a document with errors.) + // + // Users do not have to call "operator*()" when they use operator++, + // so we need to end the stream in the operator++ function. + // + // Note that setting finished = true is essential otherwise + // we would enter an infinite loop. + if (stream->error) { finished = true; } + // Note that stream->error() is guarded against error conditions + // (it will immediately return if stream->error casts to false). + // In effect, this next function does nothing when (stream->error) + // is true (hence the risk of an infinite loop). + stream->next(); + // If that was the last document, we're finished. + // It is the only type of error we do not want to appear + // in operator*. + if (stream->error == EMPTY) { finished = true; } + // If we had any other kind of error (not EMPTY) then we want + // to pass it along to the operator* and we cannot mark the result + // as "finished" just yet. + return *this; +} + +simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { + return finished != other.finished; +} + +inline void document_stream::start() noexcept { + if (error) { return; } + error = parser->ensure_capacity(batch_size); + if (error) { return; } + // Always run the first stage 1 parse immediately + batch_start = 0; + error = run_stage1(*parser, batch_start); + while(error == EMPTY) { + // In exceptional cases, we may start with an empty block + batch_start = next_batch_start(); + if (batch_start >= len) { return; } + error = run_stage1(*parser, batch_start); + } + if (error) { return; } +#ifdef SIMDJSON_THREADS_ENABLED + if (use_thread && next_batch_start() < len) { + // Kick off the first thread if needed + error = stage1_thread_parser.ensure_capacity(batch_size); + if (error) { return; } + worker->start_thread(); + start_stage1_thread(); + if (error) { return; } + } +#endif // SIMDJSON_THREADS_ENABLED + next(); +} + +simdjson_inline size_t document_stream::iterator::current_index() const noexcept { + return stream->doc_index; +} + +simdjson_inline std::string_view document_stream::iterator::source() const noexcept { + const char* start = reinterpret_cast(stream->buf) + current_index(); + bool object_or_array = ((*start == '[') || (*start == '{')); + if(object_or_array) { + size_t next_doc_index = stream->batch_start + stream->parser->implementation->structural_indexes[stream->parser->implementation->next_structural_index - 1]; + return std::string_view(start, next_doc_index - current_index() + 1); + } else { + size_t next_doc_index = stream->batch_start + stream->parser->implementation->structural_indexes[stream->parser->implementation->next_structural_index]; + return std::string_view(reinterpret_cast(stream->buf) + current_index(), next_doc_index - current_index() - 1); + } +} + + +inline void document_stream::next() noexcept { + // We always exit at once, once in an error condition. + if (error) { return; } + + // Load the next document from the batch + doc_index = batch_start + parser->implementation->structural_indexes[parser->implementation->next_structural_index]; + error = parser->implementation->stage2_next(parser->doc); + // If that was the last document in the batch, load another batch (if available) + while (error == EMPTY) { + batch_start = next_batch_start(); + if (batch_start >= len) { break; } + +#ifdef SIMDJSON_THREADS_ENABLED + if(use_thread) { + load_from_stage1_thread(); + } else { + error = run_stage1(*parser, batch_start); + } +#else + error = run_stage1(*parser, batch_start); +#endif + if (error) { continue; } // If the error was EMPTY, we may want to load another batch. + // Run stage 2 on the first document in the batch + doc_index = batch_start + parser->implementation->structural_indexes[parser->implementation->next_structural_index]; + error = parser->implementation->stage2_next(parser->doc); + } +} +inline size_t document_stream::size_in_bytes() const noexcept { + return len; +} + +inline size_t document_stream::truncated_bytes() const noexcept { + if(error == CAPACITY) { return len - batch_start; } + return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; +} + +inline size_t document_stream::next_batch_start() const noexcept { + return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; +} + +inline error_code document_stream::run_stage1(dom::parser &p, size_t _batch_start) noexcept { + size_t remaining = len - _batch_start; + if (remaining <= batch_size) { + return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); + } else { + return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); + } +} + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void document_stream::load_from_stage1_thread() noexcept { + worker->finish(); + // Swap to the parser that was loaded up in the thread. Make sure the parser has + // enough memory to swap to, as well. + std::swap(*parser, stage1_thread_parser); + error = stage1_thread_error; + if (error) { return; } + + // If there's anything left, start the stage 1 thread! + if (next_batch_start() < len) { + start_stage1_thread(); + } +} + +inline void document_stream::start_stage1_thread() noexcept { + // we call the thread on a lambda that will update + // this->stage1_thread_error + // there is only one thread that may write to this value + // TODO this is NOT exception-safe. + this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error + size_t _next_batch_start = this->next_batch_start(); + + worker->run(this, & this->stage1_thread_parser, _next_batch_start); +} + +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace dom + +simdjson_inline simdjson_result::simdjson_result() noexcept + : simdjson_result_base() { +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : simdjson_result_base(error) { +} +simdjson_inline simdjson_result::simdjson_result(dom::document_stream &&value) noexcept + : simdjson_result_base(std::forward(value)) { +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline dom::document_stream::iterator simdjson_result::begin() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.begin(); +} +simdjson_inline dom::document_stream::iterator simdjson_result::end() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.end(); +} +#else // SIMDJSON_EXCEPTIONS +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +simdjson_inline dom::document_stream::iterator simdjson_result::begin() noexcept { + first.error = error(); + return first.begin(); +} +simdjson_inline dom::document_stream::iterator simdjson_result::end() noexcept { + first.error = error(); + return first.end(); +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API +#endif // SIMDJSON_EXCEPTIONS + +} // namespace simdjson +#endif // SIMDJSON_INLINE_DOCUMENT_STREAM_H +/* end file include/simdjson/dom/document_stream-inl.h */ +/* begin file include/simdjson/dom/document-inl.h */ +#ifndef SIMDJSON_INLINE_DOCUMENT_H +#define SIMDJSON_INLINE_DOCUMENT_H + +// Inline implementations go in here. + +#include +#include + +namespace simdjson { +namespace dom { + +// +// document inline implementation +// +inline element document::root() const noexcept { + return element(internal::tape_ref(this, 1)); +} +simdjson_warn_unused +inline size_t document::capacity() const noexcept { + return allocated_capacity; +} + +simdjson_warn_unused +inline error_code document::allocate(size_t capacity) noexcept { + if (capacity == 0) { + string_buf.reset(); + tape.reset(); + allocated_capacity = 0; + return SUCCESS; + } + + // a pathological input like "[[[[..." would generate capacity tape elements, so + // need a capacity of at least capacity + 1, but it is also possible to do + // worse with "[7,7,7,7,6,7,7,7,6,7,7,6,[7,7,7,7,6,7,7,7,6,7,7,6,7,7,7,7,7,7,6" + //where capacity + 1 tape elements are + // generated, see issue https://github.com/simdjson/simdjson/issues/345 + size_t tape_capacity = SIMDJSON_ROUNDUP_N(capacity + 3, 64); + // a document with only zero-length strings... could have capacity/3 string + // and we would need capacity/3 * 5 bytes on the string buffer + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset( new (std::nothrow) uint8_t[string_capacity]); + tape.reset(new (std::nothrow) uint64_t[tape_capacity]); + if(!(string_buf && tape)) { + allocated_capacity = 0; + string_buf.reset(); + tape.reset(); + return MEMALLOC; + } + // Technically the allocated_capacity might be larger than capacity + // so the next line is pessimistic. + allocated_capacity = capacity; + return SUCCESS; +} + +inline bool document::dump_raw_tape(std::ostream &os) const noexcept { + uint32_t string_length; + size_t tape_idx = 0; + uint64_t tape_val = tape[tape_idx]; + uint8_t type = uint8_t(tape_val >> 56); + os << tape_idx << " : " << type; + tape_idx++; + size_t how_many = 0; + if (type == 'r') { + how_many = size_t(tape_val & internal::JSON_VALUE_MASK); + } else { + // Error: no starting root node? + return false; + } + os << "\t// pointing to " << how_many << " (right after last node)\n"; + uint64_t payload; + for (; tape_idx < how_many; tape_idx++) { + os << tape_idx << " : "; + tape_val = tape[tape_idx]; + payload = tape_val & internal::JSON_VALUE_MASK; + type = uint8_t(tape_val >> 56); + switch (type) { + case '"': // we have a string + os << "string \""; + std::memcpy(&string_length, string_buf.get() + payload, sizeof(uint32_t)); + os << internal::escape_json_string(std::string_view( + reinterpret_cast(string_buf.get() + payload + sizeof(uint32_t)), + string_length + )); + os << '"'; + os << '\n'; + break; + case 'l': // we have a long int + if (tape_idx + 1 >= how_many) { + return false; + } + os << "integer " << static_cast(tape[++tape_idx]) << "\n"; + break; + case 'u': // we have a long uint + if (tape_idx + 1 >= how_many) { + return false; + } + os << "unsigned integer " << tape[++tape_idx] << "\n"; + break; + case 'd': // we have a double + os << "float "; + if (tape_idx + 1 >= how_many) { + return false; + } + double answer; + std::memcpy(&answer, &tape[++tape_idx], sizeof(answer)); + os << answer << '\n'; + break; + case 'n': // we have a null + os << "null\n"; + break; + case 't': // we have a true + os << "true\n"; + break; + case 'f': // we have a false + os << "false\n"; + break; + case '{': // we have an object + os << "{\t// pointing to next tape location " << uint32_t(payload) + << " (first node after the scope), " + << " saturated count " + << ((payload >> 32) & internal::JSON_COUNT_MASK)<< "\n"; + break; case '}': // we end an object + os << "}\t// pointing to previous tape location " << uint32_t(payload) + << " (start of the scope)\n"; + break; + case '[': // we start an array + os << "[\t// pointing to next tape location " << uint32_t(payload) + << " (first node after the scope), " + << " saturated count " + << ((payload >> 32) & internal::JSON_COUNT_MASK)<< "\n"; + break; + case ']': // we end an array + os << "]\t// pointing to previous tape location " << uint32_t(payload) + << " (start of the scope)\n"; + break; + case 'r': // we start and end with the root node + // should we be hitting the root node? + return false; + default: + return false; + } + } + tape_val = tape[tape_idx]; + payload = tape_val & internal::JSON_VALUE_MASK; + type = uint8_t(tape_val >> 56); + os << tape_idx << " : " << type << "\t// pointing to " << payload + << " (start root)\n"; + return true; +} + +} // namespace dom +} // namespace simdjson + +#endif // SIMDJSON_INLINE_DOCUMENT_H +/* end file include/simdjson/dom/document-inl.h */ +/* begin file include/simdjson/dom/object-inl.h */ +#ifndef SIMDJSON_INLINE_OBJECT_H +#define SIMDJSON_INLINE_OBJECT_H + +#include +#include + +namespace simdjson { + +// +// simdjson_result inline implementation +// +simdjson_inline simdjson_result::simdjson_result() noexcept + : internal::simdjson_result_base() {} +simdjson_inline simdjson_result::simdjson_result(dom::object value) noexcept + : internal::simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : internal::simdjson_result_base(error) {} + +inline simdjson_result simdjson_result::operator[](std::string_view key) const noexcept { + if (error()) { return error(); } + return first[key]; +} +inline simdjson_result simdjson_result::operator[](const char *key) const noexcept { + if (error()) { return error(); } + return first[key]; +} +inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) const noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +inline simdjson_result simdjson_result::at_key(std::string_view key) const noexcept { + if (error()) { return error(); } + return first.at_key(key); +} +inline simdjson_result simdjson_result::at_key_case_insensitive(std::string_view key) const noexcept { + if (error()) { return error(); } + return first.at_key_case_insensitive(key); +} + +#if SIMDJSON_EXCEPTIONS + +inline dom::object::iterator simdjson_result::begin() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.begin(); +} +inline dom::object::iterator simdjson_result::end() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.end(); +} +inline size_t simdjson_result::size() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.size(); +} + +#endif // SIMDJSON_EXCEPTIONS + +namespace dom { + +// +// object inline implementation +// +simdjson_inline object::object() noexcept : tape{} {} +simdjson_inline object::object(const internal::tape_ref &_tape) noexcept : tape{_tape} { } +inline object::iterator object::begin() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return internal::tape_ref(tape.doc, tape.json_index + 1); +} +inline object::iterator object::end() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return internal::tape_ref(tape.doc, tape.after_element() - 1); +} +inline size_t object::size() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return tape.scope_count(); +} + +inline simdjson_result object::operator[](std::string_view key) const noexcept { + return at_key(key); +} +inline simdjson_result object::operator[](const char *key) const noexcept { + return at_key(key); +} +inline simdjson_result object::at_pointer(std::string_view json_pointer) const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + if(json_pointer.empty()) { // an empty string means that we return the current node + return element(this->tape); // copy the current node + } else if(json_pointer[0] != '/') { // otherwise there is an error + return INVALID_JSON_POINTER; + } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; + + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); + } + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = at_key(unescaped); + } else { + child = at_key(key); + } + if(child.error()) { + return child; // we do not continue if there was an error + } + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); + } + return child; +} + +inline simdjson_result object::at_key(std::string_view key) const noexcept { + iterator end_field = end(); + for (iterator field = begin(); field != end_field; ++field) { + if (field.key_equals(key)) { + return field.value(); + } + } + return NO_SUCH_FIELD; +} +// In case you wonder why we need this, please see +// https://github.com/simdjson/simdjson/issues/323 +// People do seek keys in a case-insensitive manner. +inline simdjson_result object::at_key_case_insensitive(std::string_view key) const noexcept { + iterator end_field = end(); + for (iterator field = begin(); field != end_field; ++field) { + if (field.key_equals_case_insensitive(key)) { + return field.value(); + } + } + return NO_SUCH_FIELD; +} + +// +// object::iterator inline implementation +// +simdjson_inline object::iterator::iterator(const internal::tape_ref &_tape) noexcept : tape{_tape} { } +inline const key_value_pair object::iterator::operator*() const noexcept { + return key_value_pair(key(), value()); +} +inline bool object::iterator::operator!=(const object::iterator& other) const noexcept { + return tape.json_index != other.tape.json_index; +} +inline bool object::iterator::operator==(const object::iterator& other) const noexcept { + return tape.json_index == other.tape.json_index; +} +inline bool object::iterator::operator<(const object::iterator& other) const noexcept { + return tape.json_index < other.tape.json_index; +} +inline bool object::iterator::operator<=(const object::iterator& other) const noexcept { + return tape.json_index <= other.tape.json_index; +} +inline bool object::iterator::operator>=(const object::iterator& other) const noexcept { + return tape.json_index >= other.tape.json_index; +} +inline bool object::iterator::operator>(const object::iterator& other) const noexcept { + return tape.json_index > other.tape.json_index; +} +inline object::iterator& object::iterator::operator++() noexcept { + tape.json_index++; + tape.json_index = tape.after_element(); + return *this; +} +inline object::iterator object::iterator::operator++(int) noexcept { + object::iterator out = *this; + ++*this; + return out; +} +inline std::string_view object::iterator::key() const noexcept { + return tape.get_string_view(); +} +inline uint32_t object::iterator::key_length() const noexcept { + return tape.get_string_length(); +} +inline const char* object::iterator::key_c_str() const noexcept { + return reinterpret_cast(&tape.doc->string_buf[size_t(tape.tape_value()) + sizeof(uint32_t)]); +} +inline element object::iterator::value() const noexcept { + return element(internal::tape_ref(tape.doc, tape.json_index + 1)); +} + +/** + * Design notes: + * Instead of constructing a string_view and then comparing it with a + * user-provided strings, it is probably more performant to have dedicated + * functions taking as a parameter the string we want to compare against + * and return true when they are equal. That avoids the creation of a temporary + * std::string_view. Though it is possible for the compiler to avoid entirely + * any overhead due to string_view, relying too much on compiler magic is + * problematic: compiler magic sometimes fail, and then what do you do? + * Also, enticing users to rely on high-performance function is probably better + * on the long run. + */ + +inline bool object::iterator::key_equals(std::string_view o) const noexcept { + // We use the fact that the key length can be computed quickly + // without access to the string buffer. + const uint32_t len = key_length(); + if(o.size() == len) { + // We avoid construction of a temporary string_view instance. + return (memcmp(o.data(), key_c_str(), len) == 0); + } + return false; +} + +inline bool object::iterator::key_equals_case_insensitive(std::string_view o) const noexcept { + // We use the fact that the key length can be computed quickly + // without access to the string buffer. + const uint32_t len = key_length(); + if(o.size() == len) { + // See For case-insensitive string comparisons, avoid char-by-char functions + // https://lemire.me/blog/2020/04/30/for-case-insensitive-string-comparisons-avoid-char-by-char-functions/ + // Note that it might be worth rolling our own strncasecmp function, with vectorization. + return (simdjson_strncasecmp(o.data(), key_c_str(), len) == 0); + } + return false; +} +// +// key_value_pair inline implementation +// +inline key_value_pair::key_value_pair(std::string_view _key, element _value) noexcept : + key(_key), value(_value) {} + +} // namespace dom + +} // namespace simdjson + +#if defined(__cpp_lib_ranges) +static_assert(std::ranges::view); +static_assert(std::ranges::sized_range); +#if SIMDJSON_EXCEPTIONS +static_assert(std::ranges::view>); +static_assert(std::ranges::sized_range>); +#endif // SIMDJSON_EXCEPTIONS +#endif // defined(__cpp_lib_ranges) + +#endif // SIMDJSON_INLINE_OBJECT_H +/* end file include/simdjson/dom/object-inl.h */ +/* begin file include/simdjson/dom/parsedjson_iterator-inl.h */ +#ifndef SIMDJSON_INLINE_PARSEDJSON_ITERATOR_H +#define SIMDJSON_INLINE_PARSEDJSON_ITERATOR_H + +#include + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API + +namespace simdjson { + +// VS2017 reports deprecated warnings when you define a deprecated class's methods. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_DEPRECATED_WARNING + +// Because of template weirdness, the actual class definition is inline in the document class +simdjson_warn_unused bool dom::parser::Iterator::is_ok() const { + return location < tape_length; +} + +// useful for debugging purposes +size_t dom::parser::Iterator::get_tape_location() const { + return location; +} + +// useful for debugging purposes +size_t dom::parser::Iterator::get_tape_length() const { + return tape_length; +} + +// returns the current depth (start at 1 with 0 reserved for the fictitious root +// node) +size_t dom::parser::Iterator::get_depth() const { + return depth; +} + +// A scope is a series of nodes at the same depth, typically it is either an +// object ({) or an array ([). The root node has type 'r'. +uint8_t dom::parser::Iterator::get_scope_type() const { + return depth_index[depth].scope_type; +} + +bool dom::parser::Iterator::move_forward() { + if (location + 1 >= tape_length) { + return false; // we are at the end! + } + + if ((current_type == '[') || (current_type == '{')) { + // We are entering a new scope + depth++; + assert(depth < max_depth); + depth_index[depth].start_of_scope = location; + depth_index[depth].scope_type = current_type; + } else if ((current_type == ']') || (current_type == '}')) { + // Leaving a scope. + depth--; + } else if (is_number()) { + // these types use 2 locations on the tape, not just one. + location += 1; + } + + location += 1; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + return true; +} + +void dom::parser::Iterator::move_to_value() { + // assume that we are on a key, so move by 1. + location += 1; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); +} + +bool dom::parser::Iterator::move_to_key(const char *key) { + if (down()) { + do { + const bool right_key = (strcmp(get_string(), key) == 0); + move_to_value(); + if (right_key) { + return true; + } + } while (next()); + up(); + } + return false; +} + +bool dom::parser::Iterator::move_to_key_insensitive( + const char *key) { + if (down()) { + do { + const bool right_key = (simdjson_strcasecmp(get_string(), key) == 0); + move_to_value(); + if (right_key) { + return true; + } + } while (next()); + up(); + } + return false; +} + +bool dom::parser::Iterator::move_to_key(const char *key, + uint32_t length) { + if (down()) { + do { + bool right_key = ((get_string_length() == length) && + (memcmp(get_string(), key, length) == 0)); + move_to_value(); + if (right_key) { + return true; + } + } while (next()); + up(); + } + return false; +} + +bool dom::parser::Iterator::move_to_index(uint32_t index) { + if (down()) { + uint32_t i = 0; + for (; i < index; i++) { + if (!next()) { + break; + } + } + if (i == index) { + return true; + } + up(); + } + return false; +} + +bool dom::parser::Iterator::prev() { + size_t target_location = location; + to_start_scope(); + size_t npos = location; + if (target_location == npos) { + return false; // we were already at the start + } + size_t oldnpos; + // we have that npos < target_location here + do { + oldnpos = npos; + if ((current_type == '[') || (current_type == '{')) { + // we need to jump + npos = uint32_t(current_val); + } else { + npos = npos + ((current_type == 'd' || current_type == 'l') ? 2 : 1); + } + } while (npos < target_location); + location = oldnpos; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + return true; +} + +bool dom::parser::Iterator::up() { + if (depth == 1) { + return false; // don't allow moving back to root + } + to_start_scope(); + // next we just move to the previous value + depth--; + location -= 1; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + return true; +} + +bool dom::parser::Iterator::down() { + if (location + 1 >= tape_length) { + return false; + } + if ((current_type == '[') || (current_type == '{')) { + size_t npos = uint32_t(current_val); + if (npos == location + 2) { + return false; // we have an empty scope + } + depth++; + assert(depth < max_depth); + location = location + 1; + depth_index[depth].start_of_scope = location; + depth_index[depth].scope_type = current_type; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + return true; + } + return false; +} + +void dom::parser::Iterator::to_start_scope() { + location = depth_index[depth].start_of_scope; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); +} + +bool dom::parser::Iterator::next() { + size_t npos; + if ((current_type == '[') || (current_type == '{')) { + // we need to jump + npos = uint32_t(current_val); + } else { + npos = location + (is_number() ? 2 : 1); + } + uint64_t next_val = doc.tape[npos]; + uint8_t next_type = uint8_t(next_val >> 56); + if ((next_type == ']') || (next_type == '}')) { + return false; // we reached the end of the scope + } + location = npos; + current_val = next_val; + current_type = next_type; + return true; +} +dom::parser::Iterator::Iterator(const dom::parser &pj) noexcept(false) + : doc(pj.doc) +{ +#if SIMDJSON_EXCEPTIONS + if (!pj.valid) { throw simdjson_error(pj.error); } +#else + if (!pj.valid) { return; } // abort() usage is forbidden in the library +#endif + + max_depth = pj.max_depth(); + depth_index = new scopeindex_t[max_depth + 1]; + depth_index[0].start_of_scope = location; + current_val = doc.tape[location++]; + current_type = uint8_t(current_val >> 56); + depth_index[0].scope_type = current_type; + tape_length = size_t(current_val & internal::JSON_VALUE_MASK); + if (location < tape_length) { + // If we make it here, then depth_capacity must >=2, but the compiler + // may not know this. + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + depth++; + assert(depth < max_depth); + depth_index[depth].start_of_scope = location; + depth_index[depth].scope_type = current_type; + } +} +dom::parser::Iterator::Iterator( + const dom::parser::Iterator &o) noexcept + : doc(o.doc), + max_depth(o.depth), + depth(o.depth), + location(o.location), + tape_length(o.tape_length), + current_type(o.current_type), + current_val(o.current_val) +{ + depth_index = new scopeindex_t[max_depth+1]; + std::memcpy(depth_index, o.depth_index, (depth + 1) * sizeof(depth_index[0])); +} + +dom::parser::Iterator::~Iterator() noexcept { + if (depth_index) { delete[] depth_index; } +} + +bool dom::parser::Iterator::print(std::ostream &os, bool escape_strings) const { + if (!is_ok()) { + return false; + } + switch (current_type) { + case '"': // we have a string + os << '"'; + if (escape_strings) { + os << internal::escape_json_string(std::string_view(get_string(), get_string_length())); + } else { + // was: os << get_string();, but given that we can include null chars, we + // have to do something crazier: + std::copy(get_string(), get_string() + get_string_length(), std::ostream_iterator(os)); + } + os << '"'; + break; + case 'l': // we have a long int + os << get_integer(); + break; + case 'u': + os << get_unsigned_integer(); + break; + case 'd': + os << get_double(); + break; + case 'n': // we have a null + os << "null"; + break; + case 't': // we have a true + os << "true"; + break; + case 'f': // we have a false + os << "false"; + break; + case '{': // we have an object + case '}': // we end an object + case '[': // we start an array + case ']': // we end an array + os << char(current_type); + break; + default: + return false; + } + return true; +} + +bool dom::parser::Iterator::move_to(const char *pointer, + uint32_t length) { + char *new_pointer = nullptr; + if (pointer[0] == '#') { + // Converting fragment representation to string representation + new_pointer = new char[length]; + uint32_t new_length = 0; + for (uint32_t i = 1; i < length; i++) { + if (pointer[i] == '%' && pointer[i + 1] == 'x') { +#if __cpp_exceptions + try { +#endif + int fragment = + std::stoi(std::string(&pointer[i + 2], 2), nullptr, 16); + if (fragment == '\\' || fragment == '"' || (fragment <= 0x1F)) { + // escaping the character + new_pointer[new_length] = '\\'; + new_length++; + } + new_pointer[new_length] = char(fragment); + i += 3; +#if __cpp_exceptions + } catch (std::invalid_argument &) { + delete[] new_pointer; + return false; // the fragment is invalid + } +#endif + } else { + new_pointer[new_length] = pointer[i]; + } + new_length++; + } + length = new_length; + pointer = new_pointer; + } + + // saving the current state + size_t depth_s = depth; + size_t location_s = location; + uint8_t current_type_s = current_type; + uint64_t current_val_s = current_val; + + rewind(); // The json pointer is used from the root of the document. + + bool found = relative_move_to(pointer, length); + delete[] new_pointer; + + if (!found) { + // since the pointer has found nothing, we get back to the original + // position. + depth = depth_s; + location = location_s; + current_type = current_type_s; + current_val = current_val_s; + } + + return found; +} + +bool dom::parser::Iterator::relative_move_to(const char *pointer, + uint32_t length) { + if (length == 0) { + // returns the whole document + return true; + } + + if (pointer[0] != '/') { + // '/' must be the first character + return false; + } + + // finding the key in an object or the index in an array + std::string key_or_index; + uint32_t offset = 1; + + // checking for the "-" case + if (is_array() && pointer[1] == '-') { + if (length != 2) { + // the pointer must be exactly "/-" + // there can't be anything more after '-' as an index + return false; + } + key_or_index = '-'; + offset = length; // will skip the loop coming right after + } + + // We either transform the first reference token to a valid json key + // or we make sure it is a valid index in an array. + for (; offset < length; offset++) { + if (pointer[offset] == '/') { + // beginning of the next key or index + break; + } + if (is_array() && (pointer[offset] < '0' || pointer[offset] > '9')) { + // the index of an array must be an integer + // we also make sure std::stoi won't discard whitespaces later + return false; + } + if (pointer[offset] == '~') { + // "~1" represents "/" + if (pointer[offset + 1] == '1') { + key_or_index += '/'; + offset++; + continue; + } + // "~0" represents "~" + if (pointer[offset + 1] == '0') { + key_or_index += '~'; + offset++; + continue; + } + } + if (pointer[offset] == '\\') { + if (pointer[offset + 1] == '\\' || pointer[offset + 1] == '"' || + (pointer[offset + 1] <= 0x1F)) { + key_or_index += pointer[offset + 1]; + offset++; + continue; + } + return false; // invalid escaped character + } + if (pointer[offset] == '\"') { + // unescaped quote character. this is an invalid case. + // lets do nothing and assume most pointers will be valid. + // it won't find any corresponding json key anyway. + // return false; + } + key_or_index += pointer[offset]; + } + + bool found = false; + if (is_object()) { + if (move_to_key(key_or_index.c_str(), uint32_t(key_or_index.length()))) { + found = relative_move_to(pointer + offset, length - offset); + } + } else if (is_array()) { + if (key_or_index == "-") { // handling "-" case first + if (down()) { + while (next()) + ; // moving to the end of the array + // moving to the nonexistent value right after... + size_t npos; + if ((current_type == '[') || (current_type == '{')) { + // we need to jump + npos = uint32_t(current_val); + } else { + npos = + location + ((current_type == 'd' || current_type == 'l') ? 2 : 1); + } + location = npos; + current_val = doc.tape[npos]; + current_type = uint8_t(current_val >> 56); + return true; // how could it fail ? + } + } else { // regular numeric index + // The index can't have a leading '0' + if (key_or_index[0] == '0' && key_or_index.length() > 1) { + return false; + } + // it cannot be empty + if (key_or_index.length() == 0) { + return false; + } + // we already checked the index contains only valid digits + uint32_t index = std::stoi(key_or_index); + if (move_to_index(index)) { + found = relative_move_to(pointer + offset, length - offset); + } + } + } + + return found; +} + +SIMDJSON_POP_DISABLE_WARNINGS +} // namespace simdjson + +#endif // SIMDJSON_DISABLE_DEPRECATED_API + + +#endif // SIMDJSON_INLINE_PARSEDJSON_ITERATOR_H +/* end file include/simdjson/dom/parsedjson_iterator-inl.h */ +/* begin file include/simdjson/dom/parser-inl.h */ +#ifndef SIMDJSON_INLINE_PARSER_H +#define SIMDJSON_INLINE_PARSER_H + +#include +#include + +namespace simdjson { +namespace dom { + +// +// parser inline implementation +// +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity}, + loaded_bytes(nullptr) { +} +simdjson_inline parser::parser(parser &&other) noexcept = default; +simdjson_inline parser &parser::operator=(parser &&other) noexcept = default; + +inline bool parser::is_valid() const noexcept { return valid; } +inline int parser::get_error_code() const noexcept { return error; } +inline std::string parser::get_error_message() const noexcept { return error_message(error); } + +inline bool parser::dump_raw_tape(std::ostream &os) const noexcept { + return valid ? doc.dump_raw_tape(os) : false; +} + +inline simdjson_result parser::read_file(const std::string &path) noexcept { + // Open the file + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + std::FILE *fp = std::fopen(path.c_str(), "rb"); + SIMDJSON_POP_DISABLE_WARNINGS + + if (fp == nullptr) { + return IO_ERROR; + } + + // Get the file size + int ret; +#if SIMDJSON_VISUAL_STUDIO && !SIMDJSON_IS_32BITS + ret = _fseeki64(fp, 0, SEEK_END); +#else + ret = std::fseek(fp, 0, SEEK_END); +#endif // _WIN64 + if(ret < 0) { + std::fclose(fp); + return IO_ERROR; + } +#if SIMDJSON_VISUAL_STUDIO && !SIMDJSON_IS_32BITS + __int64 len = _ftelli64(fp); + if(len == -1L) { + std::fclose(fp); + return IO_ERROR; + } +#else + long len = std::ftell(fp); + if((len < 0) || (len == LONG_MAX)) { + std::fclose(fp); + return IO_ERROR; + } +#endif + + // Make sure we have enough capacity to load the file + if (_loaded_bytes_capacity < size_t(len)) { + loaded_bytes.reset( internal::allocate_padded_buffer(len) ); + if (!loaded_bytes) { + std::fclose(fp); + return MEMALLOC; + } + _loaded_bytes_capacity = len; + } + + // Read the string + std::rewind(fp); + size_t bytes_read = std::fread(loaded_bytes.get(), 1, len, fp); + if (std::fclose(fp) != 0 || bytes_read != size_t(len)) { + return IO_ERROR; + } + + return bytes_read; +} + +inline simdjson_result parser::load(const std::string &path) & noexcept { + size_t len; + auto _error = read_file(path).get(len); + if (_error) { return _error; } + return parse(loaded_bytes.get(), len, false); +} + +inline simdjson_result parser::load_many(const std::string &path, size_t batch_size) noexcept { + size_t len; + auto _error = read_file(path).get(len); + if (_error) { return _error; } + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + return document_stream(*this, reinterpret_cast(loaded_bytes.get()), len, batch_size); +} + +inline simdjson_result parser::parse_into_document(document& provided_doc, const uint8_t *buf, size_t len, bool realloc_if_needed) & noexcept { + // Important: we need to ensure that document has enough capacity. + // Important: It is possible that provided_doc is actually the internal 'doc' within the parser!!! + error_code _error = ensure_capacity(provided_doc, len); + if (_error) { return _error; } + if (realloc_if_needed) { + // Make sure we have enough capacity to copy len bytes + if (!loaded_bytes || _loaded_bytes_capacity < len) { + loaded_bytes.reset( internal::allocate_padded_buffer(len) ); + if (!loaded_bytes) { + return MEMALLOC; + } + _loaded_bytes_capacity = len; + } + std::memcpy(static_cast(loaded_bytes.get()), buf, len); + } + _error = implementation->parse(realloc_if_needed ? reinterpret_cast(loaded_bytes.get()): buf, len, provided_doc); + + if (_error) { return _error; } + + return provided_doc.root(); +} + +simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const char *buf, size_t len, bool realloc_if_needed) & noexcept { + return parse_into_document(provided_doc, reinterpret_cast(buf), len, realloc_if_needed); +} +simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const std::string &s) & noexcept { + return parse_into_document(provided_doc, s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING); +} +simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const padded_string &s) & noexcept { + return parse_into_document(provided_doc, s.data(), s.length(), false); +} + + +inline simdjson_result parser::parse(const uint8_t *buf, size_t len, bool realloc_if_needed) & noexcept { + return parse_into_document(doc, buf, len, realloc_if_needed); +} + +simdjson_inline simdjson_result parser::parse(const char *buf, size_t len, bool realloc_if_needed) & noexcept { + return parse(reinterpret_cast(buf), len, realloc_if_needed); +} +simdjson_inline simdjson_result parser::parse(const std::string &s) & noexcept { + return parse(s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING); +} +simdjson_inline simdjson_result parser::parse(const padded_string &s) & noexcept { + return parse(s.data(), s.length(), false); +} +simdjson_inline simdjson_result parser::parse(const padded_string_view &v) & noexcept { + return parse(v.data(), v.length(), false); +} + +inline simdjson_result parser::parse_many(const uint8_t *buf, size_t len, size_t batch_size) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + return document_stream(*this, buf, len, batch_size); +} +inline simdjson_result parser::parse_many(const char *buf, size_t len, size_t batch_size) noexcept { + return parse_many(reinterpret_cast(buf), len, batch_size); +} +inline simdjson_result parser::parse_many(const std::string &s, size_t batch_size) noexcept { + return parse_many(s.data(), s.length(), batch_size); +} +inline simdjson_result parser::parse_many(const padded_string &s, size_t batch_size) noexcept { + return parse_many(s.data(), s.length(), batch_size); +} + +simdjson_inline size_t parser::capacity() const noexcept { + return implementation ? implementation->capacity() : 0; +} +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; +} +simdjson_inline size_t parser::max_depth() const noexcept { + return implementation ? implementation->max_depth() : DEFAULT_MAX_DEPTH; +} + +simdjson_warn_unused +inline error_code parser::allocate(size_t capacity, size_t max_depth) noexcept { + // + // Reallocate implementation if needed + // + error_code err; + if (implementation) { + err = implementation->allocate(capacity, max_depth); + } else { + err = simdjson::get_active_implementation()->create_dom_parser_implementation(capacity, max_depth, implementation); + } + if (err) { return err; } + return SUCCESS; +} + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +simdjson_warn_unused +inline bool parser::allocate_capacity(size_t capacity, size_t max_depth) noexcept { + return !allocate(capacity, max_depth); +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API + +inline error_code parser::ensure_capacity(size_t desired_capacity) noexcept { + return ensure_capacity(doc, desired_capacity); +} + + +inline error_code parser::ensure_capacity(document& target_document, size_t desired_capacity) noexcept { + // 1. It is wasteful to allocate a document and a parser for documents spanning less than MINIMAL_DOCUMENT_CAPACITY bytes. + // 2. If we allow desired_capacity = 0 then it is possible to exit this function with implementation == nullptr. + if(desired_capacity < MINIMAL_DOCUMENT_CAPACITY) { desired_capacity = MINIMAL_DOCUMENT_CAPACITY; } + // If we don't have enough capacity, (try to) automatically bump it. + // If the document needs allocation, do it too. + // Both in one if statement to minimize unlikely branching. + // + // Note: we must make sure that this function is called if capacity() == 0. We do so because we + // ensure that desired_capacity > 0. + if (simdjson_unlikely(capacity() < desired_capacity || target_document.capacity() < desired_capacity)) { + if (desired_capacity > max_capacity()) { + return error = CAPACITY; + } + error_code err1 = target_document.capacity() < desired_capacity ? target_document.allocate(desired_capacity) : SUCCESS; + error_code err2 = capacity() < desired_capacity ? allocate(desired_capacity, max_depth()) : SUCCESS; + if(err1 != SUCCESS) { return error = err1; } + if(err2 != SUCCESS) { return error = err2; } + } + return SUCCESS; +} + +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity > MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = MINIMAL_DOCUMENT_CAPACITY; + } +} + +} // namespace dom +} // namespace simdjson + +#endif // SIMDJSON_INLINE_PARSER_H +/* end file include/simdjson/dom/parser-inl.h */ +/* begin file include/simdjson/internal/tape_ref-inl.h */ +#ifndef SIMDJSON_INLINE_TAPE_REF_H +#define SIMDJSON_INLINE_TAPE_REF_H + +#include + +namespace simdjson { +namespace internal { + +// +// tape_ref inline implementation +// +simdjson_inline tape_ref::tape_ref() noexcept : doc{nullptr}, json_index{0} {} +simdjson_inline tape_ref::tape_ref(const dom::document *_doc, size_t _json_index) noexcept : doc{_doc}, json_index{_json_index} {} + + +simdjson_inline bool tape_ref::is_document_root() const noexcept { + return json_index == 1; // should we ever change the structure of the tape, this should get updated. +} +simdjson_inline bool tape_ref::usable() const noexcept { + return doc != nullptr; // when the document pointer is null, this tape_ref is uninitialized (should not be accessed). +} +// Some value types have a specific on-tape word value. It can be faster +// to check the type by doing a word-to-word comparison instead of extracting the +// most significant 8 bits. + +simdjson_inline bool tape_ref::is_double() const noexcept { + constexpr uint64_t tape_double = uint64_t(tape_type::DOUBLE)<<56; + return doc->tape[json_index] == tape_double; +} +simdjson_inline bool tape_ref::is_int64() const noexcept { + constexpr uint64_t tape_int64 = uint64_t(tape_type::INT64)<<56; + return doc->tape[json_index] == tape_int64; +} +simdjson_inline bool tape_ref::is_uint64() const noexcept { + constexpr uint64_t tape_uint64 = uint64_t(tape_type::UINT64)<<56; + return doc->tape[json_index] == tape_uint64; +} +simdjson_inline bool tape_ref::is_false() const noexcept { + constexpr uint64_t tape_false = uint64_t(tape_type::FALSE_VALUE)<<56; + return doc->tape[json_index] == tape_false; +} +simdjson_inline bool tape_ref::is_true() const noexcept { + constexpr uint64_t tape_true = uint64_t(tape_type::TRUE_VALUE)<<56; + return doc->tape[json_index] == tape_true; +} +simdjson_inline bool tape_ref::is_null_on_tape() const noexcept { + constexpr uint64_t tape_null = uint64_t(tape_type::NULL_VALUE)<<56; + return doc->tape[json_index] == tape_null; +} + +inline size_t tape_ref::after_element() const noexcept { + switch (tape_ref_type()) { + case tape_type::START_ARRAY: + case tape_type::START_OBJECT: + return matching_brace_index(); + case tape_type::UINT64: + case tape_type::INT64: + case tape_type::DOUBLE: + return json_index + 2; + default: + return json_index + 1; + } +} +simdjson_inline tape_type tape_ref::tape_ref_type() const noexcept { + return static_cast(doc->tape[json_index] >> 56); +} +simdjson_inline uint64_t internal::tape_ref::tape_value() const noexcept { + return doc->tape[json_index] & internal::JSON_VALUE_MASK; +} +simdjson_inline uint32_t internal::tape_ref::matching_brace_index() const noexcept { + return uint32_t(doc->tape[json_index]); +} +simdjson_inline uint32_t internal::tape_ref::scope_count() const noexcept { + return uint32_t((doc->tape[json_index] >> 32) & internal::JSON_COUNT_MASK); +} + +template +simdjson_inline T tape_ref::next_tape_value() const noexcept { + static_assert(sizeof(T) == sizeof(uint64_t), "next_tape_value() template parameter must be 64-bit"); + // Though the following is tempting... + // return *reinterpret_cast(&doc->tape[json_index + 1]); + // It is not generally safe. It is safer, and often faster to rely + // on memcpy. Yes, it is uglier, but it is also encapsulated. + T x; + std::memcpy(&x,&doc->tape[json_index + 1],sizeof(uint64_t)); + return x; +} + +simdjson_inline uint32_t internal::tape_ref::get_string_length() const noexcept { + size_t string_buf_index = size_t(tape_value()); + uint32_t len; + std::memcpy(&len, &doc->string_buf[string_buf_index], sizeof(len)); + return len; +} + +simdjson_inline const char * internal::tape_ref::get_c_str() const noexcept { + size_t string_buf_index = size_t(tape_value()); + return reinterpret_cast(&doc->string_buf[string_buf_index + sizeof(uint32_t)]); +} + +inline std::string_view internal::tape_ref::get_string_view() const noexcept { + return std::string_view( + get_c_str(), + get_string_length() + ); +} + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INLINE_TAPE_REF_H +/* end file include/simdjson/internal/tape_ref-inl.h */ +/* begin file include/simdjson/dom/serialization-inl.h */ + +#ifndef SIMDJSON_SERIALIZATION_INL_H +#define SIMDJSON_SERIALIZATION_INL_H + + +#include +#include + +namespace simdjson { +namespace dom { +inline bool parser::print_json(std::ostream &os) const noexcept { + if (!valid) { return false; } + simdjson::internal::string_builder<> sb; + sb.append(doc.root()); + std::string_view answer = sb.str(); + os << answer; + return true; +} +} +/*** + * Number utility functions + **/ + + +namespace { +/**@private + * Escape sequence like \b or \u0001 + * We expect that most compilers will use 8 bytes for this data structure. + **/ +struct escape_sequence { + uint8_t length; + const char string[7]; // technically, we only ever need 6 characters, we pad to 8 +}; +/**@private + * This converts a signed integer into a character sequence. + * The caller is responsible for providing enough memory (at least + * 20 characters.) + * Though various runtime libraries provide itoa functions, + * it is not part of the C++ standard. The C++17 standard + * adds the to_chars functions which would do as well, but + * we want to support C++11. + */ +char *fast_itoa(char *output, int64_t value) noexcept { + // This is a standard implementation of itoa. + char buffer[20]; + uint64_t value_positive; + // In general, negating a signed integer is unsafe. + if(value < 0) { + *output++ = '-'; + // Doing value_positive = -value; while avoiding + // undefined behavior warnings. + // It assumes two complement's which is universal at this + // point in time. + std::memcpy(&value_positive, &value, sizeof(value)); + value_positive = (~value_positive) + 1; // this is a negation + } else { + value_positive = value; + } + // We work solely with value_positive. It *might* be easier + // for an optimizing compiler to deal with an unsigned variable + // as far as performance goes. + const char *const end_buffer = buffer + 20; + char *write_pointer = buffer + 19; + // A faster approach is possible if we expect large integers: + // unroll the loop (work in 100s, 1000s) and use some kind of + // memoization. + while(value_positive >= 10) { + *write_pointer-- = char('0' + (value_positive % 10)); + value_positive /= 10; + } + *write_pointer = char('0' + value_positive); + size_t len = end_buffer - write_pointer; + std::memcpy(output, write_pointer, len); + return output + len; +} +/**@private + * This converts an unsigned integer into a character sequence. + * The caller is responsible for providing enough memory (at least + * 19 characters.) + * Though various runtime libraries provide itoa functions, + * it is not part of the C++ standard. The C++17 standard + * adds the to_chars functions which would do as well, but + * we want to support C++11. + */ +char *fast_itoa(char *output, uint64_t value) noexcept { + // This is a standard implementation of itoa. + char buffer[20]; + const char *const end_buffer = buffer + 20; + char *write_pointer = buffer + 19; + // A faster approach is possible if we expect large integers: + // unroll the loop (work in 100s, 1000s) and use some kind of + // memoization. + while(value >= 10) { + *write_pointer-- = char('0' + (value % 10)); + value /= 10; + }; + *write_pointer = char('0' + value); + size_t len = end_buffer - write_pointer; + std::memcpy(output, write_pointer, len); + return output + len; +} +} // anonymous namespace +namespace internal { + +/*** + * Minifier/formatter code. + **/ + +simdjson_inline void mini_formatter::number(uint64_t x) { + char number_buffer[24]; + char *newp = fast_itoa(number_buffer, x); + buffer.insert(buffer.end(), number_buffer, newp); +} + +simdjson_inline void mini_formatter::number(int64_t x) { + char number_buffer[24]; + char *newp = fast_itoa(number_buffer, x); + buffer.insert(buffer.end(), number_buffer, newp); +} + +simdjson_inline void mini_formatter::number(double x) { + char number_buffer[24]; + // Currently, passing the nullptr to the second argument is + // safe because our implementation does not check the second + // argument. + char *newp = internal::to_chars(number_buffer, nullptr, x); + buffer.insert(buffer.end(), number_buffer, newp); +} + +simdjson_inline void mini_formatter::start_array() { one_char('['); } +simdjson_inline void mini_formatter::end_array() { one_char(']'); } +simdjson_inline void mini_formatter::start_object() { one_char('{'); } +simdjson_inline void mini_formatter::end_object() { one_char('}'); } +simdjson_inline void mini_formatter::comma() { one_char(','); } + + +simdjson_inline void mini_formatter::true_atom() { + const char * s = "true"; + buffer.insert(buffer.end(), s, s + 4); +} +simdjson_inline void mini_formatter::false_atom() { + const char * s = "false"; + buffer.insert(buffer.end(), s, s + 5); +} +simdjson_inline void mini_formatter::null_atom() { + const char * s = "null"; + buffer.insert(buffer.end(), s, s + 4); +} +simdjson_inline void mini_formatter::one_char(char c) { buffer.push_back(c); } +simdjson_inline void mini_formatter::key(std::string_view unescaped) { + string(unescaped); + one_char(':'); +} +simdjson_inline void mini_formatter::string(std::string_view unescaped) { + one_char('\"'); + size_t i = 0; + // Fast path for the case where we have no control character, no ", and no backslash. + // This should include most keys. + // + // We would like to use 'bool' but some compilers take offense to bitwise operation + // with bool types. + constexpr static char needs_escaping[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + for(;i + 8 <= unescaped.length(); i += 8) { + // Poor's man vectorization. This could get much faster if we used SIMD. + // + // It is not the case that replacing '|' with '||' would be neutral performance-wise. + if(needs_escaping[uint8_t(unescaped[i])] | needs_escaping[uint8_t(unescaped[i+1])] + | needs_escaping[uint8_t(unescaped[i+2])] | needs_escaping[uint8_t(unescaped[i+3])] + | needs_escaping[uint8_t(unescaped[i+4])] | needs_escaping[uint8_t(unescaped[i+5])] + | needs_escaping[uint8_t(unescaped[i+6])] | needs_escaping[uint8_t(unescaped[i+7])] + ) { break; } + } + for(;i < unescaped.length(); i++) { + if(needs_escaping[uint8_t(unescaped[i])]) { break; } + } + // The following is also possible and omits a 256-byte table, but it is slower: + // for (; (i < unescaped.length()) && (uint8_t(unescaped[i]) > 0x1F) + // && (unescaped[i] != '\"') && (unescaped[i] != '\\'); i++) {} + + // At least for long strings, the following should be fast. We could + // do better by integrating the checks and the insertion. + buffer.insert(buffer.end(), unescaped.data(), unescaped.data() + i); + // We caught a control character if we enter this loop (slow). + // Note that we are do not restart from the beginning, but rather we continue + // from the point where we encountered something that requires escaping. + for (; i < unescaped.length(); i++) { + switch (unescaped[i]) { + case '\"': + { + const char * s = "\\\""; + buffer.insert(buffer.end(), s, s + 2); + } + break; + case '\\': + { + const char * s = "\\\\"; + buffer.insert(buffer.end(), s, s + 2); + } + break; + default: + if (uint8_t(unescaped[i]) <= 0x1F) { + // If packed, this uses 8 * 32 bytes. + // Note that we expect most compilers to embed this code in the data + // section. + constexpr static escape_sequence escaped[32] = { + {6, "\\u0000"}, {6, "\\u0001"}, {6, "\\u0002"}, {6, "\\u0003"}, + {6, "\\u0004"}, {6, "\\u0005"}, {6, "\\u0006"}, {6, "\\u0007"}, + {2, "\\b"}, {2, "\\t"}, {2, "\\n"}, {6, "\\u000b"}, + {2, "\\f"}, {2, "\\r"}, {6, "\\u000e"}, {6, "\\u000f"}, + {6, "\\u0010"}, {6, "\\u0011"}, {6, "\\u0012"}, {6, "\\u0013"}, + {6, "\\u0014"}, {6, "\\u0015"}, {6, "\\u0016"}, {6, "\\u0017"}, + {6, "\\u0018"}, {6, "\\u0019"}, {6, "\\u001a"}, {6, "\\u001b"}, + {6, "\\u001c"}, {6, "\\u001d"}, {6, "\\u001e"}, {6, "\\u001f"}}; + auto u = escaped[uint8_t(unescaped[i])]; + buffer.insert(buffer.end(), u.string, u.string + u.length); + } else { + one_char(unescaped[i]); + } + } // switch + } // for + one_char('\"'); +} + +inline void mini_formatter::clear() { + buffer.clear(); +} + +simdjson_inline std::string_view mini_formatter::str() const { + return std::string_view(buffer.data(), buffer.size()); +} + + +/*** + * String building code. + **/ + +template +inline void string_builder::append(simdjson::dom::element value) { + // using tape_type = simdjson::internal::tape_type; + size_t depth = 0; + constexpr size_t MAX_DEPTH = 16; + bool is_object[MAX_DEPTH]; + is_object[0] = false; + bool after_value = false; + + internal::tape_ref iter(value.tape); + do { + // print commas after each value + if (after_value) { + format.comma(); + } + // If we are in an object, print the next key and :, and skip to the next + // value. + if (is_object[depth]) { + format.key(iter.get_string_view()); + iter.json_index++; + } + switch (iter.tape_ref_type()) { + + // Arrays + case tape_type::START_ARRAY: { + // If we're too deep, we need to recurse to go deeper. + depth++; + if (simdjson_unlikely(depth >= MAX_DEPTH)) { + append(simdjson::dom::array(iter)); + iter.json_index = iter.matching_brace_index() - 1; // Jump to the ] + depth--; + break; + } + + // Output start [ + format.start_array(); + iter.json_index++; + + // Handle empty [] (we don't want to come back around and print commas) + if (iter.tape_ref_type() == tape_type::END_ARRAY) { + format.end_array(); + depth--; + break; + } + + is_object[depth] = false; + after_value = false; + continue; + } + + // Objects + case tape_type::START_OBJECT: { + // If we're too deep, we need to recurse to go deeper. + depth++; + if (simdjson_unlikely(depth >= MAX_DEPTH)) { + append(simdjson::dom::object(iter)); + iter.json_index = iter.matching_brace_index() - 1; // Jump to the } + depth--; + break; + } + + // Output start { + format.start_object(); + iter.json_index++; + + // Handle empty {} (we don't want to come back around and print commas) + if (iter.tape_ref_type() == tape_type::END_OBJECT) { + format.end_object(); + depth--; + break; + } + + is_object[depth] = true; + after_value = false; + continue; + } + + // Scalars + case tape_type::STRING: + format.string(iter.get_string_view()); + break; + case tape_type::INT64: + format.number(iter.next_tape_value()); + iter.json_index++; // numbers take up 2 spots, so we need to increment + // extra + break; + case tape_type::UINT64: + format.number(iter.next_tape_value()); + iter.json_index++; // numbers take up 2 spots, so we need to increment + // extra + break; + case tape_type::DOUBLE: + format.number(iter.next_tape_value()); + iter.json_index++; // numbers take up 2 spots, so we need to increment + // extra + break; + case tape_type::TRUE_VALUE: + format.true_atom(); + break; + case tape_type::FALSE_VALUE: + format.false_atom(); + break; + case tape_type::NULL_VALUE: + format.null_atom(); + break; + + // These are impossible + case tape_type::END_ARRAY: + case tape_type::END_OBJECT: + case tape_type::ROOT: + SIMDJSON_UNREACHABLE(); + } + iter.json_index++; + after_value = true; + + // Handle multiple ends in a row + while (depth != 0 && (iter.tape_ref_type() == tape_type::END_ARRAY || + iter.tape_ref_type() == tape_type::END_OBJECT)) { + if (iter.tape_ref_type() == tape_type::END_ARRAY) { + format.end_array(); + } else { + format.end_object(); + } + depth--; + iter.json_index++; + } + + // Stop when we're at depth 0 + } while (depth != 0); +} + +template +inline void string_builder::append(simdjson::dom::object value) { + format.start_object(); + auto pair = value.begin(); + auto end = value.end(); + if (pair != end) { + append(*pair); + for (++pair; pair != end; ++pair) { + format.comma(); + append(*pair); + } + } + format.end_object(); +} + +template +inline void string_builder::append(simdjson::dom::array value) { + format.start_array(); + auto iter = value.begin(); + auto end = value.end(); + if (iter != end) { + append(*iter); + for (++iter; iter != end; ++iter) { + format.comma(); + append(*iter); + } + } + format.end_array(); +} + +template +simdjson_inline void string_builder::append(simdjson::dom::key_value_pair kv) { + format.key(kv.key); + append(kv.value); +} + +template +simdjson_inline void string_builder::clear() { + format.clear(); +} + +template +simdjson_inline std::string_view string_builder::str() const { + return format.str(); +} + + +} // namespace internal +} // namespace simdjson + +#endif +/* end file include/simdjson/dom/serialization-inl.h */ + +SIMDJSON_POP_DISABLE_WARNINGS + +#endif // SIMDJSON_DOM_H +/* end file include/simdjson/dom.h */ +/* begin file include/simdjson/builtin.h */ +#ifndef SIMDJSON_BUILTIN_H +#define SIMDJSON_BUILTIN_H + +/* begin file include/simdjson/implementations.h */ +#ifndef SIMDJSON_IMPLEMENTATIONS_H +#define SIMDJSON_IMPLEMENTATIONS_H + +/* begin file include/simdjson/implementation-base.h */ +#ifndef SIMDJSON_IMPLEMENTATION_BASE_H +#define SIMDJSON_IMPLEMENTATION_BASE_H + +/** + * @file + * + * Includes common stuff needed for implementations. + */ + + +// Implementation-internal files (must be included before the implementations themselves, to keep +// amalgamation working--otherwise, the first time a file is included, it might be put inside the +// #ifdef SIMDJSON_IMPLEMENTATION_ARM64/FALLBACK/etc., which means the other implementations can't +// compile unless that implementation is turned on). +/* begin file include/simdjson/internal/jsoncharutils_tables.h */ +#ifndef SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H +#define SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H + + +#ifdef JSON_TEST_STRINGS +void found_string(const uint8_t *buf, const uint8_t *parsed_begin, + const uint8_t *parsed_end); +void found_bad_string(const uint8_t *buf); +#endif + +namespace simdjson { +namespace internal { +// structural chars here are +// they are { 0x7b } 0x7d : 0x3a [ 0x5b ] 0x5d , 0x2c (and NULL) +// we are also interested in the four whitespace characters +// space 0x20, linefeed 0x0a, horizontal tab 0x09 and carriage return 0x0d + +extern SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace_negated[256]; +extern SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace[256]; +extern SIMDJSON_DLLIMPORTEXPORT const uint32_t digit_to_val32[886]; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H +/* end file include/simdjson/internal/jsoncharutils_tables.h */ +/* begin file include/simdjson/internal/numberparsing_tables.h */ +#ifndef SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H +#define SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H + + +namespace simdjson { +namespace internal { +/** + * The smallest non-zero float (binary64) is 2^-1074. + * We take as input numbers of the form w x 10^q where w < 2^64. + * We have that w * 10^-343 < 2^(64-344) 5^-343 < 2^-1076. + * However, we have that + * (2^64-1) * 10^-342 = (2^64-1) * 2^-342 * 5^-342 > 2^-1074. + * Thus it is possible for a number of the form w * 10^-342 where + * w is a 64-bit value to be a non-zero floating-point number. + ********* + * Any number of form w * 10^309 where w>= 1 is going to be + * infinite in binary64 so we never need to worry about powers + * of 5 greater than 308. + */ +constexpr int smallest_power = -342; +constexpr int largest_power = 308; + +/** + * Represents a 128-bit value. + * low: least significant 64 bits. + * high: most significant 64 bits. + */ +struct value128 { + uint64_t low; + uint64_t high; +}; + + +// Precomputed powers of ten from 10^0 to 10^22. These +// can be represented exactly using the double type. +extern SIMDJSON_DLLIMPORTEXPORT const double power_of_ten[]; + + +/** + * When mapping numbers from decimal to binary, + * we go from w * 10^q to m * 2^p but we have + * 10^q = 5^q * 2^q, so effectively + * we are trying to match + * w * 2^q * 5^q to m * 2^p. Thus the powers of two + * are not a concern since they can be represented + * exactly using the binary notation, only the powers of five + * affect the binary significand. + */ + + +// The truncated powers of five from 5^-342 all the way to 5^308 +// The mantissa is truncated to 128 bits, and +// never rounded up. Uses about 10KB. +extern SIMDJSON_DLLIMPORTEXPORT const uint64_t power_of_five_128[]; +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H +/* end file include/simdjson/internal/numberparsing_tables.h */ +/* begin file include/simdjson/internal/simdprune_tables.h */ +#ifndef SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H +#define SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H + +#include + +namespace simdjson { // table modified and copied from +namespace internal { // http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetTable + +extern SIMDJSON_DLLIMPORTEXPORT const unsigned char BitsSetTable256mul2[256]; + +extern SIMDJSON_DLLIMPORTEXPORT const uint8_t pshufb_combine_table[272]; + +// 256 * 8 bytes = 2kB, easily fits in cache. +extern SIMDJSON_DLLIMPORTEXPORT const uint64_t thintable_epi8[256]; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H +/* end file include/simdjson/internal/simdprune_tables.h */ + +#endif // SIMDJSON_IMPLEMENTATION_BASE_H +/* end file include/simdjson/implementation-base.h */ + +// +// First, figure out which implementations can be run. Doing it here makes it so we don't have to worry about the order +// in which we include them. +// + +#ifndef SIMDJSON_IMPLEMENTATION_ARM64 +#define SIMDJSON_IMPLEMENTATION_ARM64 (SIMDJSON_IS_ARM64) +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_ARM64 SIMDJSON_IMPLEMENTATION_ARM64 && SIMDJSON_IS_ARM64 + +#ifdef __has_include +// How do we detect that a compiler supports vbmi2? +// For sure if the following header is found, we are ok? +#if __has_include() +#define SIMDJSON_COMPILER_SUPPORTS_VBMI2 1 +#endif +#endif + +#ifdef _MSC_VER +#if _MSC_VER >= 1920 +// Visual Studio 2019 and up support VBMI2 under x64 even if the header +// avx512vbmi2intrin.h is not found. +#define SIMDJSON_COMPILER_SUPPORTS_VBMI2 1 +#endif +#endif + +// By default, we allow AVX512. +#ifndef SIMDJSON_AVX512_ALLOWED +#define SIMDJSON_AVX512_ALLOWED 1 +#endif + +// Default Icelake to on if this is x86-64. Even if we're not compiled for it, it could be selected +// at runtime. +#ifndef SIMDJSON_IMPLEMENTATION_ICELAKE +#define SIMDJSON_IMPLEMENTATION_ICELAKE ((SIMDJSON_IS_X86_64) && (SIMDJSON_AVX512_ALLOWED) && (SIMDJSON_COMPILER_SUPPORTS_VBMI2)) +#endif + +#ifdef _MSC_VER +// To see why (__BMI__) && (__PCLMUL__) && (__LZCNT__) are not part of this next line, see +// https://github.com/simdjson/simdjson/issues/1247 +#define SIMDJSON_CAN_ALWAYS_RUN_ICELAKE ((SIMDJSON_IMPLEMENTATION_ICELAKE) && (__AVX2__) && (__AVX512F__) && (__AVX512DQ__) && (__AVX512CD__) && (__AVX512BW__) && (__AVX512VL__) && (__AVX512VBMI2__)) +#else +#define SIMDJSON_CAN_ALWAYS_RUN_ICELAKE ((SIMDJSON_IMPLEMENTATION_ICELAKE) && (__AVX2__) && (__BMI__) && (__PCLMUL__) && (__LZCNT__) && (__AVX512F__) && (__AVX512DQ__) && (__AVX512CD__) && (__AVX512BW__) && (__AVX512VL__) && (__AVX512VBMI2__)) +#endif + +// Default Haswell to on if this is x86-64. Even if we're not compiled for it, it could be selected +// at runtime. +#ifndef SIMDJSON_IMPLEMENTATION_HASWELL +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +// if icelake is always available, never enable haswell. +#define SIMDJSON_IMPLEMENTATION_HASWELL 0 +#else +#define SIMDJSON_IMPLEMENTATION_HASWELL SIMDJSON_IS_X86_64 +#endif +#endif +#ifdef _MSC_VER +// To see why (__BMI__) && (__PCLMUL__) && (__LZCNT__) are not part of this next line, see +// https://github.com/simdjson/simdjson/issues/1247 +#define SIMDJSON_CAN_ALWAYS_RUN_HASWELL ((SIMDJSON_IMPLEMENTATION_HASWELL) && (SIMDJSON_IS_X86_64) && (__AVX2__)) +#else +#define SIMDJSON_CAN_ALWAYS_RUN_HASWELL ((SIMDJSON_IMPLEMENTATION_HASWELL) && (SIMDJSON_IS_X86_64) && (__AVX2__) && (__BMI__) && (__PCLMUL__) && (__LZCNT__)) +#endif + +// Default Westmere to on if this is x86-64. +#ifndef SIMDJSON_IMPLEMENTATION_WESTMERE +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE || SIMDJSON_CAN_ALWAYS_RUN_HASWELL +// if icelake or haswell are always available, never enable westmere. +#define SIMDJSON_IMPLEMENTATION_WESTMERE 0 +#else +#define SIMDJSON_IMPLEMENTATION_WESTMERE SIMDJSON_IS_X86_64 +#endif +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_WESTMERE (SIMDJSON_IMPLEMENTATION_WESTMERE && SIMDJSON_IS_X86_64 && __SSE4_2__ && __PCLMUL__) + +#ifndef SIMDJSON_IMPLEMENTATION_PPC64 +#define SIMDJSON_IMPLEMENTATION_PPC64 (SIMDJSON_IS_PPC64 && SIMDJSON_IS_PPC64_VMX) +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_PPC64 SIMDJSON_IMPLEMENTATION_PPC64 && SIMDJSON_IS_PPC64 && SIMDJSON_IS_PPC64_VMX + +// Default Fallback to on unless a builtin implementation has already been selected. +#ifndef SIMDJSON_IMPLEMENTATION_FALLBACK +#if SIMDJSON_CAN_ALWAYS_RUN_ARM64 || SIMDJSON_CAN_ALWAYS_RUN_ICELAKE || SIMDJSON_CAN_ALWAYS_RUN_HASWELL || SIMDJSON_CAN_ALWAYS_RUN_WESTMERE || SIMDJSON_CAN_ALWAYS_RUN_PPC64 +// if anything at all except fallback can always run, then disable fallback. +#define SIMDJSON_IMPLEMENTATION_FALLBACK 0 +#else +#define SIMDJSON_IMPLEMENTATION_FALLBACK 1 +#endif +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_FALLBACK SIMDJSON_IMPLEMENTATION_FALLBACK + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_UNDESIRED_WARNINGS + +// Implementations +/* begin file include/simdjson/arm64.h */ +#ifndef SIMDJSON_ARM64_H +#define SIMDJSON_ARM64_H + + +#if SIMDJSON_IMPLEMENTATION_ARM64 + +namespace simdjson { +/** + * Implementation for NEON (ARMv8). + */ +namespace arm64 { +} // namespace arm64 +} // namespace simdjson + +/* begin file include/simdjson/arm64/implementation.h */ +#ifndef SIMDJSON_ARM64_IMPLEMENTATION_H +#define SIMDJSON_ARM64_IMPLEMENTATION_H + + +namespace simdjson { +namespace arm64 { + +namespace { +using namespace simdjson; +using namespace simdjson::dom; +} + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation("arm64", "ARM NEON", internal::instruction_set::NEON) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_IMPLEMENTATION_H +/* end file include/simdjson/arm64/implementation.h */ + +/* begin file include/simdjson/arm64/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "arm64" +// #define SIMDJSON_IMPLEMENTATION arm64 +/* end file include/simdjson/arm64/begin.h */ + +// Declarations +/* begin file include/simdjson/generic/dom_parser_implementation.h */ + +namespace simdjson { +namespace arm64 { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { +namespace arm64 { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace arm64 +} // namespace simdjson +/* end file include/simdjson/generic/dom_parser_implementation.h */ +/* begin file include/simdjson/arm64/intrinsics.h */ +#ifndef SIMDJSON_ARM64_INTRINSICS_H +#define SIMDJSON_ARM64_INTRINSICS_H + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +static_assert(sizeof(uint8x16_t) <= simdjson::SIMDJSON_PADDING, "insufficient padding for arm64"); + +#endif // SIMDJSON_ARM64_INTRINSICS_H +/* end file include/simdjson/arm64/intrinsics.h */ +/* begin file include/simdjson/arm64/bitmanipulation.h */ +#ifndef SIMDJSON_ARM64_BITMANIPULATION_H +#define SIMDJSON_ARM64_BITMANIPULATION_H + +namespace simdjson { +namespace arm64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int count_ones(uint64_t input_num) { + return vaddv_u8(vcnt_u8(vcreate_u8(input_num))); +} + + +#if defined(__GNUC__) // catches clang and gcc +/** + * ARM has a fast 64-bit "bit reversal function" that is handy. However, + * it is not generally available as an intrinsic function under Visual + * Studio (though this might be changing). Even under clang/gcc, we + * apparently need to invoke inline assembly. + */ +/* + * We use SIMDJSON_PREFER_REVERSE_BITS as a hint that algorithms that + * work well with bit reversal may use it. + */ +#define SIMDJSON_PREFER_REVERSE_BITS 1 + +/* reverse the bits */ +simdjson_inline uint64_t reverse_bits(uint64_t input_num) { + uint64_t rev_bits; + __asm("rbit %0, %1" : "=r"(rev_bits) : "r"(input_num)); + return rev_bits; +} + +/** + * Flips bit at index 63 - lz. Thus if you have 'leading_zeroes' leading zeroes, + * then this will set to zero the leading bit. It is possible for leading_zeroes to be + * greating or equal to 63 in which case we trigger undefined behavior, but the output + * of such undefined behavior is never used. + **/ +SIMDJSON_NO_SANITIZE_UNDEFINED +simdjson_inline uint64_t zero_leading_bit(uint64_t rev_bits, int leading_zeroes) { + return rev_bits ^ (uint64_t(0x8000000000000000) >> leading_zeroes); +} + +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, uint64_t *result) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_BITMANIPULATION_H +/* end file include/simdjson/arm64/bitmanipulation.h */ +/* begin file include/simdjson/arm64/bitmask.h */ +#ifndef SIMDJSON_ARM64_BITMASK_H +#define SIMDJSON_ARM64_BITMASK_H + +namespace simdjson { +namespace arm64 { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + ///////////// + // We could do this with PMULL, but it is apparently slow. + // + //#ifdef __ARM_FEATURE_CRYPTO // some ARM processors lack this extension + //return vmull_p64(-1ULL, bitmask); + //#else + // Analysis by @sebpop: + // When diffing the assembly for src/stage1_find_marks.cpp I see that the eors are all spread out + // in between other vector code, so effectively the extra cycles of the sequence do not matter + // because the GPR units are idle otherwise and the critical path is on the FP side. + // Also the PMULL requires two extra fmovs: GPR->FP (3 cycles in N1, 5 cycles in A72 ) + // and FP->GPR (2 cycles on N1 and 5 cycles on A72.) + /////////// + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif +/* end file include/simdjson/arm64/bitmask.h */ +/* begin file include/simdjson/arm64/simd.h */ +#ifndef SIMDJSON_ARM64_SIMD_H +#define SIMDJSON_ARM64_SIMD_H + +#include + + +namespace simdjson { +namespace arm64 { +namespace { +namespace simd { + +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO +namespace { +// Start of private section with Visual Studio workaround + + +/** + * make_uint8x16_t initializes a SIMD register (uint8x16_t). + * This is needed because, incredibly, the syntax uint8x16_t x = {1,2,3...} + * is not recognized under Visual Studio! This is a workaround. + * Using a std::initializer_list as a parameter resulted in + * inefficient code. With the current approach, if the parameters are + * compile-time constants, + * GNU GCC compiles it to ldr, the same as uint8x16_t x = {1,2,3...}. + * You should not use this function except for compile-time constants: + * it is not efficient. + */ +simdjson_inline uint8x16_t make_uint8x16_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8, + uint8_t x9, uint8_t x10, uint8_t x11, uint8_t x12, + uint8_t x13, uint8_t x14, uint8_t x15, uint8_t x16) { + // Doing a load like so end ups generating worse code. + // uint8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_u8(array); + uint8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_u8(x1, x, 0); + x = vsetq_lane_u8(x2, x, 1); + x = vsetq_lane_u8(x3, x, 2); + x = vsetq_lane_u8(x4, x, 3); + x = vsetq_lane_u8(x5, x, 4); + x = vsetq_lane_u8(x6, x, 5); + x = vsetq_lane_u8(x7, x, 6); + x = vsetq_lane_u8(x8, x, 7); + x = vsetq_lane_u8(x9, x, 8); + x = vsetq_lane_u8(x10, x, 9); + x = vsetq_lane_u8(x11, x, 10); + x = vsetq_lane_u8(x12, x, 11); + x = vsetq_lane_u8(x13, x, 12); + x = vsetq_lane_u8(x14, x, 13); + x = vsetq_lane_u8(x15, x, 14); + x = vsetq_lane_u8(x16, x, 15); + return x; +} + +simdjson_inline uint8x8_t make_uint8x8_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8) { + uint8x8_t x{}; + x = vset_lane_u8(x1, x, 0); + x = vset_lane_u8(x2, x, 1); + x = vset_lane_u8(x3, x, 2); + x = vset_lane_u8(x4, x, 3); + x = vset_lane_u8(x5, x, 4); + x = vset_lane_u8(x6, x, 5); + x = vset_lane_u8(x7, x, 6); + x = vset_lane_u8(x8, x, 7); + return x; +} + +// We have to do the same work for make_int8x16_t +simdjson_inline int8x16_t make_int8x16_t(int8_t x1, int8_t x2, int8_t x3, int8_t x4, + int8_t x5, int8_t x6, int8_t x7, int8_t x8, + int8_t x9, int8_t x10, int8_t x11, int8_t x12, + int8_t x13, int8_t x14, int8_t x15, int8_t x16) { + // Doing a load like so end ups generating worse code. + // int8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_s8(array); + int8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_s8(x1, x, 0); + x = vsetq_lane_s8(x2, x, 1); + x = vsetq_lane_s8(x3, x, 2); + x = vsetq_lane_s8(x4, x, 3); + x = vsetq_lane_s8(x5, x, 4); + x = vsetq_lane_s8(x6, x, 5); + x = vsetq_lane_s8(x7, x, 6); + x = vsetq_lane_s8(x8, x, 7); + x = vsetq_lane_s8(x9, x, 8); + x = vsetq_lane_s8(x10, x, 9); + x = vsetq_lane_s8(x11, x, 10); + x = vsetq_lane_s8(x12, x, 11); + x = vsetq_lane_s8(x13, x, 12); + x = vsetq_lane_s8(x14, x, 13); + x = vsetq_lane_s8(x15, x, 14); + x = vsetq_lane_s8(x16, x, 15); + return x; +} + +// End of private section with Visual Studio workaround +} // namespace +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO + + + template + struct simd8; + + // + // Base class of simd8 and simd8, both of which use uint8x16_t internally. + // + template> + struct base_u8 { + uint8x16_t value; + static const int SIZE = sizeof(value); + + // Conversion from/to SIMD register + simdjson_inline base_u8(const uint8x16_t _value) : value(_value) {} + simdjson_inline operator const uint8x16_t&() const { return this->value; } + simdjson_inline operator uint8x16_t&() { return this->value; } + + // Bit operations + simdjson_inline simd8 operator|(const simd8 other) const { return vorrq_u8(*this, other); } + simdjson_inline simd8 operator&(const simd8 other) const { return vandq_u8(*this, other); } + simdjson_inline simd8 operator^(const simd8 other) const { return veorq_u8(*this, other); } + simdjson_inline simd8 bit_andnot(const simd8 other) const { return vbicq_u8(*this, other); } + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + simdjson_inline simd8& operator|=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline simd8& operator&=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline simd8& operator^=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast ^ other; return *this_cast; } + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return vceqq_u8(lhs, rhs); } + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_u8(prev_chunk, *this, 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base_u8 { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + static simdjson_inline simd8 splat(bool _value) { return vmovq_n_u8(uint8_t(-(!!_value))); } + + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // False constructor + simdjson_inline simd8() : simd8(vdupq_n_u8(0)) {} + // Splat constructor + simdjson_inline simd8(bool _value) : simd8(splat(_value)) {} + + // We return uint32_t instead of uint16_t because that seems to be more efficient for most + // purposes (cutting it down to uint16_t costs performance in some compilers). + simdjson_inline uint32_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t(0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80); +#else + const uint8x16_t bit_mask = {0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80}; +#endif + auto minput = *this & bit_mask; + uint8x16_t tmp = vpaddq_u8(minput, minput); + tmp = vpaddq_u8(tmp, tmp); + tmp = vpaddq_u8(tmp, tmp); + return vgetq_lane_u16(vreinterpretq_u16_u8(tmp), 0); + } + simdjson_inline bool any() const { return vmaxvq_u8(*this) != 0; } + }; + + // Unsigned bytes + template<> + struct simd8: base_u8 { + static simdjson_inline uint8x16_t splat(uint8_t _value) { return vmovq_n_u8(_value); } + static simdjson_inline uint8x16_t zero() { return vdupq_n_u8(0); } + static simdjson_inline uint8x16_t load(const uint8_t* values) { return vld1q_u8(values); } + + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[16]) : simd8(load(values)) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(make_uint8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(uint8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Store to array + simdjson_inline void store(uint8_t dst[16]) const { return vst1q_u8(dst, *this); } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return vqaddq_u8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return vqsubq_u8(*this, other); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_u8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_u8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + + // Order-specific operations + simdjson_inline uint8_t max_val() const { return vmaxvq_u8(*this); } + simdjson_inline uint8_t min_val() const { return vminvq_u8(*this); } + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_u8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_u8(*this, other); } + simdjson_inline simd8 operator<=(const simd8 other) const { return vcleq_u8(*this, other); } + simdjson_inline simd8 operator>=(const simd8 other) const { return vcgeq_u8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_u8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_u8(*this, other); } + // Same as >, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 gt_bits(const simd8 other) const { return simd8(*this > other); } + // Same as <, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 lt_bits(const simd8 other) const { return simd8(*this < other); } + + // Bit-specific operations + simdjson_inline simd8 any_bits_set(simd8 bits) const { return vtstq_u8(*this, bits); } + simdjson_inline bool any_bits_set_anywhere() const { return this->max_val() != 0; } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return (*this & bits).any_bits_set_anywhere(); } + template + simdjson_inline simd8 shr() const { return vshrq_n_u8(*this, N); } + template + simdjson_inline simd8 shl() const { return vshlq_n_u8(*this, N); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint16_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + uint64x2_t shufmask64 = {thintable_epi8[mask1], thintable_epi8[mask2]}; + uint8x16_t shufmask = vreinterpretq_u8_u64(shufmask64); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x16_t inc = make_uint8x16_t(0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x16_t inc = {0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + shufmask = vaddq_u8(shufmask, inc); + // this is the version "nearly pruned" + uint8x16_t pruned = vqtbl1q_u8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + uint8x16_t compactmask = vld1q_u8(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + uint8x16_t answer = vqtbl1q_u8(pruned, compactmask); + vst1q_u8(reinterpret_cast(output), answer); + } + + // Copies all bytes corresponding to a 0 in the low half of the mask (interpreted as a + // bitset) to output1, then those corresponding to a 0 in the high half to output2. + template + simdjson_inline void compress_halves(uint16_t mask, L *output1, L *output2) const { + using internal::thintable_epi8; + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + uint8x8_t compactmask1 = vcreate_u8(thintable_epi8[mask1]); + uint8x8_t compactmask2 = vcreate_u8(thintable_epi8[mask2]); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x8_t inc = make_uint8x8_t(0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x8_t inc = {0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + compactmask2 = vadd_u8(compactmask2, inc); + // store each result (with the second store possibly overlapping the first) + vst1_u8((uint8_t*)output1, vqtbl1_u8(*this, compactmask1)); + vst1_u8((uint8_t*)output2, vqtbl1_u8(*this, compactmask2)); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_u8(*this, simd8(original)); + } + }; + + // Signed bytes + template<> + struct simd8 { + int8x16_t value; + + static simdjson_inline simd8 splat(int8_t _value) { return vmovq_n_s8(_value); } + static simdjson_inline simd8 zero() { return vdupq_n_s8(0); } + static simdjson_inline simd8 load(const int8_t values[16]) { return vld1q_s8(values); } + + // Conversion from/to SIMD register + simdjson_inline simd8(const int8x16_t _value) : value{_value} {} + simdjson_inline operator const int8x16_t&() const { return this->value; } + simdjson_inline operator int8x16_t&() { return this->value; } + + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(make_int8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(int8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Store to array + simdjson_inline void store(int8_t dst[16]) const { return vst1q_s8(dst, *this); } + + // Explicit conversion to/from unsigned + // + // Under Visual Studio/ARM64 uint8x16_t and int8x16_t are apparently the same type. + // In theory, we could check this occurrence with std::same_as and std::enabled_if but it is C++14 + // and relatively ugly and hard to read. +#ifndef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline explicit simd8(const uint8x16_t other): simd8(vreinterpretq_s8_u8(other)) {} +#endif + simdjson_inline explicit operator simd8() const { return vreinterpretq_u8_s8(this->value); } + + // Math + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_s8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_s8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_s8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_s8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_s8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_s8(*this, other); } + simdjson_inline simd8 operator==(const simd8 other) const { return vceqq_s8(*this, other); } + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_s8(prev_chunk, *this, 16 - N); + } + + // Perform a lookup assuming no value is larger than 16 + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_s8(*this, simd8(original)); + } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "ARM kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } + + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint64_t popcounts = vget_lane_u64(vreinterpret_u64_u8(vcnt_u8(vcreate_u8(~mask))), 0); + // compute the prefix sum of the popcounts of each byte + uint64_t offsets = popcounts * 0x0101010101010101; + this->chunks[0].compress_halves(uint16_t(mask), output, &output[popcounts & 0xFF]); + this->chunks[1].compress_halves(uint16_t(mask >> 16), &output[(offsets >> 8) & 0xFF], &output[(offsets >> 16) & 0xFF]); + this->chunks[2].compress_halves(uint16_t(mask >> 32), &output[(offsets >> 24) & 0xFF], &output[(offsets >> 32) & 0xFF]); + this->chunks[3].compress_halves(uint16_t(mask >> 48), &output[(offsets >> 40) & 0xFF], &output[(offsets >> 48) & 0xFF]); + return offsets >> 56; + } + + simdjson_inline uint64_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t( + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + ); +#else + const uint8x16_t bit_mask = { + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + }; +#endif + // Add each of the elements next to each other, successively, to stuff each 8 byte mask into one. + uint8x16_t sum0 = vpaddq_u8(this->chunks[0] & bit_mask, this->chunks[1] & bit_mask); + uint8x16_t sum1 = vpaddq_u8(this->chunks[2] & bit_mask, this->chunks[3] & bit_mask); + sum0 = vpaddq_u8(sum0, sum1); + sum0 = vpaddq_u8(sum0, sum0); + return vgetq_lane_u64(vreinterpretq_u64_u8(sum0), 0); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_SIMD_H +/* end file include/simdjson/arm64/simd.h */ +/* begin file include/simdjson/generic/jsoncharutils.h */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +using internal::value128; + +simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { + value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file include/simdjson/generic/jsoncharutils.h */ +/* begin file include/simdjson/generic/atomparsing.h */ +namespace simdjson { +namespace arm64 { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson +/* end file include/simdjson/generic/atomparsing.h */ +/* begin file include/simdjson/arm64/stringparsing.h */ +#ifndef SIMDJSON_ARM64_STRINGPARSING_H +#define SIMDJSON_ARM64_STRINGPARSING_H + + +namespace simdjson { +namespace arm64 { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on ARM; therefore, we + // smash them together into a 64-byte mask and get the bitmask from there. + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_STRINGPARSING_H +/* end file include/simdjson/arm64/stringparsing.h */ +/* begin file include/simdjson/arm64/numberparsing.h */ +#ifndef SIMDJSON_ARM64_NUMBERPARSING_H +#define SIMDJSON_ARM64_NUMBERPARSING_H + +namespace simdjson { +namespace arm64 { +namespace numberparsing { + +// we don't have SSE, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +} // namespace numberparsing +} // namespace arm64 +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +/* begin file include/simdjson/generic/numberparsing.h */ +#include + +namespace simdjson { +namespace arm64 { +/// @private +namespace numberparsing { + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace numberparsing +} // namespace arm64 +} // namespace simdjson +/* end file include/simdjson/generic/numberparsing.h */ + +#endif // SIMDJSON_ARM64_NUMBERPARSING_H +/* end file include/simdjson/arm64/numberparsing.h */ +/* begin file include/simdjson/arm64/end.h */ +/* end file include/simdjson/arm64/end.h */ + +#endif // SIMDJSON_IMPLEMENTATION_ARM64 + +#endif // SIMDJSON_ARM64_H +/* end file include/simdjson/arm64.h */ +/* begin file include/simdjson/fallback.h */ +#ifndef SIMDJSON_FALLBACK_H +#define SIMDJSON_FALLBACK_H + + +#if SIMDJSON_IMPLEMENTATION_FALLBACK + +namespace simdjson { +/** + * Fallback implementation (runs on any machine). + */ +namespace fallback { +} // namespace fallback +} // namespace simdjson + +/* begin file include/simdjson/fallback/implementation.h */ +#ifndef SIMDJSON_FALLBACK_IMPLEMENTATION_H +#define SIMDJSON_FALLBACK_IMPLEMENTATION_H + + +namespace simdjson { +namespace fallback { + +namespace { +using namespace simdjson; +using namespace simdjson::dom; +} + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "fallback", + "Generic fallback implementation", + 0 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_IMPLEMENTATION_H +/* end file include/simdjson/fallback/implementation.h */ + +/* begin file include/simdjson/fallback/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "fallback" +// #define SIMDJSON_IMPLEMENTATION fallback +/* end file include/simdjson/fallback/begin.h */ + +// Declarations +/* begin file include/simdjson/generic/dom_parser_implementation.h */ + +namespace simdjson { +namespace fallback { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace fallback +} // namespace simdjson + +namespace simdjson { +namespace fallback { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace fallback +} // namespace simdjson +/* end file include/simdjson/generic/dom_parser_implementation.h */ +/* begin file include/simdjson/fallback/bitmanipulation.h */ +#ifndef SIMDJSON_FALLBACK_BITMANIPULATION_H +#define SIMDJSON_FALLBACK_BITMANIPULATION_H + +#include + +namespace simdjson { +namespace fallback { +namespace { + +#if defined(_MSC_VER) && !defined(_M_ARM64) && !defined(_M_X64) +static inline unsigned char _BitScanForward64(unsigned long* ret, uint64_t x) { + unsigned long x0 = (unsigned long)x, top, bottom; + _BitScanForward(&top, (unsigned long)(x >> 32)); + _BitScanForward(&bottom, x0); + *ret = x0 ? bottom : 32 + top; + return x != 0; +} +static unsigned char _BitScanReverse64(unsigned long* ret, uint64_t x) { + unsigned long x1 = (unsigned long)(x >> 32), top, bottom; + _BitScanReverse(&top, x1); + _BitScanReverse(&bottom, (unsigned long)x); + *ret = x1 ? top + 32 : bottom; + return x != 0; +} +#endif + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef _MSC_VER + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// _MSC_VER +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_BITMANIPULATION_H +/* end file include/simdjson/fallback/bitmanipulation.h */ +/* begin file include/simdjson/generic/jsoncharutils.h */ + +namespace simdjson { +namespace fallback { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +using internal::value128; + +simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { + value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace fallback +} // namespace simdjson +/* end file include/simdjson/generic/jsoncharutils.h */ +/* begin file include/simdjson/generic/atomparsing.h */ +namespace simdjson { +namespace fallback { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace fallback +} // namespace simdjson +/* end file include/simdjson/generic/atomparsing.h */ +/* begin file include/simdjson/fallback/stringparsing.h */ +#ifndef SIMDJSON_FALLBACK_STRINGPARSING_H +#define SIMDJSON_FALLBACK_STRINGPARSING_H + + +namespace simdjson { +namespace fallback { +namespace { + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 1; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return c == '"'; } + simdjson_inline bool has_backslash() { return c == '\\'; } + simdjson_inline int quote_index() { return c == '"' ? 0 : 1; } + simdjson_inline int backslash_index() { return c == '\\' ? 0 : 1; } + + uint8_t c; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // store to dest unconditionally - we can overwrite the bits we don't like later + dst[0] = src[0]; + return { src[0] }; +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_STRINGPARSING_H +/* end file include/simdjson/fallback/stringparsing.h */ +/* begin file include/simdjson/fallback/numberparsing.h */ +#ifndef SIMDJSON_FALLBACK_NUMBERPARSING_H +#define SIMDJSON_FALLBACK_NUMBERPARSING_H + +#ifdef JSON_TEST_NUMBERS // for unit testing +void found_invalid_number(const uint8_t *buf); +void found_integer(int64_t result, const uint8_t *buf); +void found_unsigned_integer(uint64_t result, const uint8_t *buf); +void found_float(double result, const uint8_t *buf); +#endif + +namespace simdjson { +namespace fallback { +namespace numberparsing { +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const char *chars) { + uint64_t val; + memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + return parse_eight_digits_unrolled(reinterpret_cast(chars)); +} + +} // namespace numberparsing +} // namespace fallback +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +/* begin file include/simdjson/generic/numberparsing.h */ +#include + +namespace simdjson { +namespace fallback { +/// @private +namespace numberparsing { + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace numberparsing +} // namespace fallback +} // namespace simdjson +/* end file include/simdjson/generic/numberparsing.h */ + +#endif // SIMDJSON_FALLBACK_NUMBERPARSING_H +/* end file include/simdjson/fallback/numberparsing.h */ +/* begin file include/simdjson/fallback/end.h */ +/* end file include/simdjson/fallback/end.h */ + +#endif // SIMDJSON_IMPLEMENTATION_FALLBACK +#endif // SIMDJSON_FALLBACK_H +/* end file include/simdjson/fallback.h */ +/* begin file include/simdjson/icelake.h */ +#ifndef SIMDJSON_ICELAKE_H +#define SIMDJSON_ICELAKE_H + + +#if SIMDJSON_IMPLEMENTATION_ICELAKE + +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +#define SIMDJSON_TARGET_ICELAKE +#define SIMDJSON_UNTARGET_ICELAKE +#else +#define SIMDJSON_TARGET_ICELAKE SIMDJSON_TARGET_REGION("avx512f,avx512dq,avx512cd,avx512bw,avx512vbmi,avx512vbmi2,avx512vl,avx2,bmi,pclmul,lzcnt,popcnt") +#define SIMDJSON_UNTARGET_ICELAKE SIMDJSON_UNTARGET_REGION +#endif + +namespace simdjson { +/** + * Implementation for Icelake (Intel AVX512). + */ +namespace icelake { +} // namespace icelake +} // namespace simdjson + +// +// These two need to be included outside SIMDJSON_TARGET_ICELAKE +// +/* begin file include/simdjson/icelake/implementation.h */ +#ifndef SIMDJSON_ICELAKE_IMPLEMENTATION_H +#define SIMDJSON_ICELAKE_IMPLEMENTATION_H + + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE +namespace simdjson { +namespace icelake { + +using namespace simdjson; + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "icelake", + "Intel/AMD AVX512", + internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 | internal::instruction_set::AVX512F | internal::instruction_set::AVX512DQ | internal::instruction_set::AVX512CD | internal::instruction_set::AVX512BW | internal::instruction_set::AVX512VL | internal::instruction_set::AVX512VBMI2 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_IMPLEMENTATION_H +/* end file include/simdjson/icelake/implementation.h */ +/* begin file include/simdjson/icelake/intrinsics.h */ +#ifndef SIMDJSON_ICELAKE_INTRINSICS_H +#define SIMDJSON_ICELAKE_INTRINSICS_H + + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// Important: we need the AVX-512 headers: +#include +#include +#include +#include +#include +#include +#include +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m512i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for icelake"); + +#endif // SIMDJSON_ICELAKE_INTRINSICS_H +/* end file include/simdjson/icelake/intrinsics.h */ + +// +// The rest need to be inside the region +// +/* begin file include/simdjson/icelake/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "icelake" +// #define SIMDJSON_IMPLEMENTATION icelake +SIMDJSON_TARGET_ICELAKE +/* end file include/simdjson/icelake/begin.h */ + +// Declarations +/* begin file include/simdjson/generic/dom_parser_implementation.h */ + +namespace simdjson { +namespace icelake { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace icelake +} // namespace simdjson + +namespace simdjson { +namespace icelake { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace icelake +} // namespace simdjson +/* end file include/simdjson/generic/dom_parser_implementation.h */ +/* begin file include/simdjson/icelake/bitmanipulation.h */ +#ifndef SIMDJSON_ICELAKE_BITMANIPULATION_H +#define SIMDJSON_ICELAKE_BITMANIPULATION_H + +namespace simdjson { +namespace icelake { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return _blsr_u64(input_num); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { + return int(_lzcnt_u64(input_num)); +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_BITMANIPULATION_H +/* end file include/simdjson/icelake/bitmanipulation.h */ +/* begin file include/simdjson/icelake/bitmask.h */ +#ifndef SIMDJSON_ICELAKE_BITMASK_H +#define SIMDJSON_ICELAKE_BITMASK_H + +namespace simdjson { +namespace icelake { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_BITMASK_H +/* end file include/simdjson/icelake/bitmask.h */ +/* begin file include/simdjson/icelake/simd.h */ +#ifndef SIMDJSON_ICELAKE_SIMD_H +#define SIMDJSON_ICELAKE_SIMD_H + + + + +#if defined(__GNUC__) && !defined(__clang__) +#if __GNUC__ == 8 +#define SIMDJSON_GCC8 1 +#endif // __GNUC__ == 8 +#endif // defined(__GNUC__) && !defined(__clang__) + +#if SIMDJSON_GCC8 +/** + * GCC 8 fails to provide _mm512_set_epi8. We roll our own. + */ +inline __m512i _mm512_set_epi8(uint8_t a0, uint8_t a1, uint8_t a2, uint8_t a3, uint8_t a4, uint8_t a5, uint8_t a6, uint8_t a7, uint8_t a8, uint8_t a9, uint8_t a10, uint8_t a11, uint8_t a12, uint8_t a13, uint8_t a14, uint8_t a15, uint8_t a16, uint8_t a17, uint8_t a18, uint8_t a19, uint8_t a20, uint8_t a21, uint8_t a22, uint8_t a23, uint8_t a24, uint8_t a25, uint8_t a26, uint8_t a27, uint8_t a28, uint8_t a29, uint8_t a30, uint8_t a31, uint8_t a32, uint8_t a33, uint8_t a34, uint8_t a35, uint8_t a36, uint8_t a37, uint8_t a38, uint8_t a39, uint8_t a40, uint8_t a41, uint8_t a42, uint8_t a43, uint8_t a44, uint8_t a45, uint8_t a46, uint8_t a47, uint8_t a48, uint8_t a49, uint8_t a50, uint8_t a51, uint8_t a52, uint8_t a53, uint8_t a54, uint8_t a55, uint8_t a56, uint8_t a57, uint8_t a58, uint8_t a59, uint8_t a60, uint8_t a61, uint8_t a62, uint8_t a63) { + return _mm512_set_epi64(uint64_t(a7) + (uint64_t(a6) << 8) + (uint64_t(a5) << 16) + (uint64_t(a4) << 24) + (uint64_t(a3) << 32) + (uint64_t(a2) << 40) + (uint64_t(a1) << 48) + (uint64_t(a0) << 56), + uint64_t(a15) + (uint64_t(a14) << 8) + (uint64_t(a13) << 16) + (uint64_t(a12) << 24) + (uint64_t(a11) << 32) + (uint64_t(a10) << 40) + (uint64_t(a9) << 48) + (uint64_t(a8) << 56), + uint64_t(a23) + (uint64_t(a22) << 8) + (uint64_t(a21) << 16) + (uint64_t(a20) << 24) + (uint64_t(a19) << 32) + (uint64_t(a18) << 40) + (uint64_t(a17) << 48) + (uint64_t(a16) << 56), + uint64_t(a31) + (uint64_t(a30) << 8) + (uint64_t(a29) << 16) + (uint64_t(a28) << 24) + (uint64_t(a27) << 32) + (uint64_t(a26) << 40) + (uint64_t(a25) << 48) + (uint64_t(a24) << 56), + uint64_t(a39) + (uint64_t(a38) << 8) + (uint64_t(a37) << 16) + (uint64_t(a36) << 24) + (uint64_t(a35) << 32) + (uint64_t(a34) << 40) + (uint64_t(a33) << 48) + (uint64_t(a32) << 56), + uint64_t(a47) + (uint64_t(a46) << 8) + (uint64_t(a45) << 16) + (uint64_t(a44) << 24) + (uint64_t(a43) << 32) + (uint64_t(a42) << 40) + (uint64_t(a41) << 48) + (uint64_t(a40) << 56), + uint64_t(a55) + (uint64_t(a54) << 8) + (uint64_t(a53) << 16) + (uint64_t(a52) << 24) + (uint64_t(a51) << 32) + (uint64_t(a50) << 40) + (uint64_t(a49) << 48) + (uint64_t(a48) << 56), + uint64_t(a63) + (uint64_t(a62) << 8) + (uint64_t(a61) << 16) + (uint64_t(a60) << 24) + (uint64_t(a59) << 32) + (uint64_t(a58) << 40) + (uint64_t(a57) << 48) + (uint64_t(a56) << 56)); +} +#endif // SIMDJSON_GCC8 + + + +namespace simdjson { +namespace icelake { +namespace { +namespace simd { + + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m512i value; + + // Zero constructor + simdjson_inline base() : value{__m512i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m512i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m512i&() const { return this->value; } + simdjson_inline operator __m512i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm512_or_si512(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm512_and_si512(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm512_xor_si512(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm512_andnot_si512(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + // Forward-declared so they can be used by splat and friends. + template + struct simd8; + + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m512i _value) : base>(_value) {} + + friend simdjson_really_inline uint64_t operator==(const simd8 lhs, const simd8 rhs) { + return _mm512_cmpeq_epi8_mask(lhs, rhs); + } + + static const int SIZE = sizeof(base::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + // workaround for compilers unable to figure out that 16 - N is a constant (GCC 8) + constexpr int shift = 16 - N; + return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm512_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m512i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + simdjson_inline bool any() const { return !!_mm512_test_epi8_mask (*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm512_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm512_setzero_si512(); } + static simdjson_inline simd8 load(const T values[64]) { + return _mm512_loadu_si512(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m512i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[64]) const { return _mm512_storeu_si512(reinterpret_cast<__m512i *>(dst), *this); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm512_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm512_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm512_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint64_t mask, L * output) const { + _mm512_mask_compressstoreu_epi8 (output,~mask,*this); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31, + int8_t v32, int8_t v33, int8_t v34, int8_t v35, int8_t v36, int8_t v37, int8_t v38, int8_t v39, + int8_t v40, int8_t v41, int8_t v42, int8_t v43, int8_t v44, int8_t v45, int8_t v46, int8_t v47, + int8_t v48, int8_t v49, int8_t v50, int8_t v51, int8_t v52, int8_t v53, int8_t v54, int8_t v55, + int8_t v56, int8_t v57, int8_t v58, int8_t v59, int8_t v60, int8_t v61, int8_t v62, int8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epi8(*this, other); } + + simdjson_inline simd8 operator>(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(*this, other),_mm512_set1_epi8(uint8_t(0x80))); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(other, *this),_mm512_set1_epi8(uint8_t(0x80))); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31, + uint8_t v32, uint8_t v33, uint8_t v34, uint8_t v35, uint8_t v36, uint8_t v37, uint8_t v38, uint8_t v39, + uint8_t v40, uint8_t v41, uint8_t v42, uint8_t v43, uint8_t v44, uint8_t v45, uint8_t v46, uint8_t v47, + uint8_t v48, uint8_t v49, uint8_t v50, uint8_t v51, uint8_t v52, uint8_t v53, uint8_t v54, uint8_t v55, + uint8_t v56, uint8_t v57, uint8_t v58, uint8_t v59, uint8_t v60, uint8_t v61, uint8_t v62, uint8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm512_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm512_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline uint64_t operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline uint64_t operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return _mm512_mask_blend_epi8(*this == uint8_t(0), _mm512_set1_epi8(0), _mm512_set1_epi8(-1)); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + + simdjson_inline bool is_ascii() const { return _mm512_movepi8_mask(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { + return !_mm512_test_epi8_mask(*this, *this); + } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return !_mm512_test_epi8_mask(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm512_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm512_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline uint64_t get_bit() const { return _mm512_movepi8_mask(_mm512_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 1, "Icelake kernel should use one register per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const simd8 chunk0) : chunks{chunk0} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(mask, output); + return 64 - count_ones(mask); + } + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + } + + simdjson_inline simd8 reduce_or() const { + return this->chunks[0]; + } + + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask + ); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] == mask; + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return this->chunks[0] == other.chunks[0]; + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] <= mask; + } + }; // struct simd8x64 + +} // namespace simd + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_SIMD_H +/* end file include/simdjson/icelake/simd.h */ +/* begin file include/simdjson/generic/jsoncharutils.h */ + +namespace simdjson { +namespace icelake { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +using internal::value128; + +simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { + value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file include/simdjson/generic/jsoncharutils.h */ +/* begin file include/simdjson/generic/atomparsing.h */ +namespace simdjson { +namespace icelake { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace icelake +} // namespace simdjson +/* end file include/simdjson/generic/atomparsing.h */ +/* begin file include/simdjson/icelake/stringparsing.h */ +#ifndef SIMDJSON_ICELAKE_STRINGPARSING_H +#define SIMDJSON_ICELAKE_STRINGPARSING_H + + +namespace simdjson { +namespace icelake { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint64_t bs_bits; + uint64_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast(v == '\\'), // bs_bits + static_cast(v == '"'), // quote_bits + }; +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_STRINGPARSING_H +/* end file include/simdjson/icelake/stringparsing.h */ +/* begin file include/simdjson/icelake/numberparsing.h */ +#ifndef SIMDJSON_ICELAKE_NUMBERPARSING_H +#define SIMDJSON_ICELAKE_NUMBERPARSING_H + +namespace simdjson { +namespace icelake { +namespace numberparsing { + +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +} // namespace numberparsing +} // namespace icelake +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +/* begin file include/simdjson/generic/numberparsing.h */ +#include + +namespace simdjson { +namespace icelake { +/// @private +namespace numberparsing { + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace numberparsing +} // namespace icelake +} // namespace simdjson +/* end file include/simdjson/generic/numberparsing.h */ + +#endif // SIMDJSON_ICELAKE_NUMBERPARSING_H +/* end file include/simdjson/icelake/numberparsing.h */ +/* begin file include/simdjson/icelake/end.h */ +SIMDJSON_UNTARGET_ICELAKE +/* end file include/simdjson/icelake/end.h */ + +#endif // SIMDJSON_IMPLEMENTATION_ICELAKE +#endif // SIMDJSON_ICELAKE_H +/* end file include/simdjson/icelake.h */ +/* begin file include/simdjson/haswell.h */ +#ifndef SIMDJSON_HASWELL_H +#define SIMDJSON_HASWELL_H + + +#if SIMDJSON_IMPLEMENTATION_HASWELL + +#if SIMDJSON_CAN_ALWAYS_RUN_HASWELL +#define SIMDJSON_TARGET_HASWELL +#define SIMDJSON_UNTARGET_HASWELL +#else +#define SIMDJSON_TARGET_HASWELL SIMDJSON_TARGET_REGION("avx2,bmi,pclmul,lzcnt,popcnt") +#define SIMDJSON_UNTARGET_HASWELL SIMDJSON_UNTARGET_REGION +#endif + +namespace simdjson { +/** + * Implementation for Haswell (Intel AVX2). + */ +namespace haswell { +} // namespace haswell +} // namespace simdjson + +// +// These two need to be included outside SIMDJSON_TARGET_HASWELL +// +/* begin file include/simdjson/haswell/implementation.h */ +#ifndef SIMDJSON_HASWELL_IMPLEMENTATION_H +#define SIMDJSON_HASWELL_IMPLEMENTATION_H + + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_HASWELL +namespace simdjson { +namespace haswell { + +using namespace simdjson; + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "haswell", + "Intel/AMD AVX2", + internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_IMPLEMENTATION_H +/* end file include/simdjson/haswell/implementation.h */ +/* begin file include/simdjson/haswell/intrinsics.h */ +#ifndef SIMDJSON_HASWELL_INTRINSICS_H +#define SIMDJSON_HASWELL_INTRINSICS_H + + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m256i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for haswell kernel."); + +#endif // SIMDJSON_HASWELL_INTRINSICS_H +/* end file include/simdjson/haswell/intrinsics.h */ + +// +// The rest need to be inside the region +// +/* begin file include/simdjson/haswell/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "haswell" +// #define SIMDJSON_IMPLEMENTATION haswell +SIMDJSON_TARGET_HASWELL +/* end file include/simdjson/haswell/begin.h */ + +// Declarations +/* begin file include/simdjson/generic/dom_parser_implementation.h */ + +namespace simdjson { +namespace haswell { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace haswell +} // namespace simdjson + +namespace simdjson { +namespace haswell { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace haswell +} // namespace simdjson +/* end file include/simdjson/generic/dom_parser_implementation.h */ +/* begin file include/simdjson/haswell/bitmanipulation.h */ +#ifndef SIMDJSON_HASWELL_BITMANIPULATION_H +#define SIMDJSON_HASWELL_BITMANIPULATION_H + +namespace simdjson { +namespace haswell { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return _blsr_u64(input_num); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { + return int(_lzcnt_u64(input_num)); +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BITMANIPULATION_H +/* end file include/simdjson/haswell/bitmanipulation.h */ +/* begin file include/simdjson/haswell/bitmask.h */ +#ifndef SIMDJSON_HASWELL_BITMASK_H +#define SIMDJSON_HASWELL_BITMASK_H + +namespace simdjson { +namespace haswell { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BITMASK_H +/* end file include/simdjson/haswell/bitmask.h */ +/* begin file include/simdjson/haswell/simd.h */ +#ifndef SIMDJSON_HASWELL_SIMD_H +#define SIMDJSON_HASWELL_SIMD_H + + +namespace simdjson { +namespace haswell { +namespace { +namespace simd { + + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m256i value; + + // Zero constructor + simdjson_inline base() : value{__m256i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m256i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m256i&() const { return this->value; } + simdjson_inline operator __m256i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm256_or_si256(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm256_and_si256(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm256_xor_si256(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm256_andnot_si256(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + // Forward-declared so they can be used by splat and friends. + template + struct simd8; + + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m256i _value) : base>(_value) {} + + friend simdjson_really_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm256_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm256_alignr_epi8(*this, _mm256_permute2x128_si256(prev_chunk, *this, 0x21), 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm256_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m256i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm256_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm256_testz_si256(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm256_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm256_setzero_si256(); } + static simdjson_inline simd8 load(const T values[32]) { + return _mm256_loadu_si256(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m256i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[32]) const { return _mm256_storeu_si256(reinterpret_cast<__m256i *>(dst), *this); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm256_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm256_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm256_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint32_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in four steps, first 8 bytes and then second 8 bytes... + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // second least significant 8 bits + uint8_t mask3 = uint8_t(mask >> 16); // ... + uint8_t mask4 = uint8_t(mask >> 24); // ... + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m256i shufmask = _mm256_set_epi64x(thintable_epi8[mask4], thintable_epi8[mask3], + thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask and so forth + shufmask = + _mm256_add_epi8(shufmask, _mm256_set_epi32(0x18181818, 0x18181818, + 0x10101010, 0x10101010, 0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m256i pruned = _mm256_shuffle_epi8(*this, shufmask); + // we still need to put the pieces back together. + // we compute the popcount of the first words: + int pop1 = BitsSetTable256mul2[mask1]; + int pop3 = BitsSetTable256mul2[mask3]; + + // then load the corresponding mask + // could be done with _mm256_loadu2_m128i but many standard libraries omit this intrinsic. + __m256i v256 = _mm256_castsi128_si256( + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8))); + __m256i compactmask = _mm256_insertf128_si256(v256, + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop3 * 8)), 1); + __m256i almostthere = _mm256_shuffle_epi8(pruned, compactmask); + // We just need to write out the result. + // This is the tricky bit that is hard to do + // if we want to return a SIMD register, since there + // is no single-instruction approach to recombine + // the two 128-bit lanes with an offset. + __m128i v128; + v128 = _mm256_castsi256_si128(almostthere); + _mm_storeu_si128( reinterpret_cast<__m128i *>(output), v128); + v128 = _mm256_extractf128_si256(almostthere, 1); + _mm_storeu_si128( reinterpret_cast<__m128i *>(output + 16 - count_ones(mask & 0xFFFF)), v128); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m256i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[32]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31 + ) : simd8(_mm256_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v16,v17,v18,v19,v20,v21,v22,v23, + v24,v25,v26,v27,v28,v29,v30,v31 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm256_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm256_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm256_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm256_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m256i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[32]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31 + ) : simd8(_mm256_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v16,v17,v18,v19,v20,v21,v22,v23, + v24,v25,v26,v27,v28,v29,v30,v31 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm256_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm256_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm256_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm256_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm256_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm256_testz_si256(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm256_testz_si256(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm256_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm256_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm256_movemask_epi8(_mm256_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 2, "Haswell kernel should use two registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+32)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint32_t mask1 = uint32_t(mask); + uint32_t mask2 = uint32_t(mask >> 32); + this->chunks[0].compress(mask1, output); + this->chunks[1].compress(mask2, output + 32 - count_ones(mask1)); + return 64 - count_ones(mask); + } + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r_lo = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r_hi = this->chunks[1].to_bitmask(); + return r_lo | (r_hi << 32); + } + + simdjson_inline simd8 reduce_or() const { + return this->chunks[0] | this->chunks[1]; + } + + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask, + this->chunks[1] | mask + ); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1] + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_SIMD_H +/* end file include/simdjson/haswell/simd.h */ +/* begin file include/simdjson/generic/jsoncharutils.h */ + +namespace simdjson { +namespace haswell { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +using internal::value128; + +simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { + value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file include/simdjson/generic/jsoncharutils.h */ +/* begin file include/simdjson/generic/atomparsing.h */ +namespace simdjson { +namespace haswell { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace haswell +} // namespace simdjson +/* end file include/simdjson/generic/atomparsing.h */ +/* begin file include/simdjson/haswell/stringparsing.h */ +#ifndef SIMDJSON_HASWELL_STRINGPARSING_H +#define SIMDJSON_HASWELL_STRINGPARSING_H + + +namespace simdjson { +namespace haswell { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast((v == '\\').to_bitmask()), // bs_bits + static_cast((v == '"').to_bitmask()), // quote_bits + }; +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_STRINGPARSING_H +/* end file include/simdjson/haswell/stringparsing.h */ +/* begin file include/simdjson/haswell/numberparsing.h */ +#ifndef SIMDJSON_HASWELL_NUMBERPARSING_H +#define SIMDJSON_HASWELL_NUMBERPARSING_H + +namespace simdjson { +namespace haswell { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +} // namespace numberparsing +} // namespace haswell +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +/* begin file include/simdjson/generic/numberparsing.h */ +#include + +namespace simdjson { +namespace haswell { +/// @private +namespace numberparsing { + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace numberparsing +} // namespace haswell +} // namespace simdjson +/* end file include/simdjson/generic/numberparsing.h */ + +#endif // SIMDJSON_HASWELL_NUMBERPARSING_H +/* end file include/simdjson/haswell/numberparsing.h */ +/* begin file include/simdjson/haswell/end.h */ +SIMDJSON_UNTARGET_HASWELL +/* end file include/simdjson/haswell/end.h */ + +#endif // SIMDJSON_IMPLEMENTATION_HASWELL +#endif // SIMDJSON_HASWELL_COMMON_H +/* end file include/simdjson/haswell.h */ +/* begin file include/simdjson/ppc64.h */ +#ifndef SIMDJSON_PPC64_H +#define SIMDJSON_PPC64_H + + +#if SIMDJSON_IMPLEMENTATION_PPC64 + +namespace simdjson { +/** + * Implementation for ALTIVEC (PPC64). + */ +namespace ppc64 { +} // namespace ppc64 +} // namespace simdjson + +/* begin file include/simdjson/ppc64/implementation.h */ +#ifndef SIMDJSON_PPC64_IMPLEMENTATION_H +#define SIMDJSON_PPC64_IMPLEMENTATION_H + + +namespace simdjson { +namespace ppc64 { + +namespace { +using namespace simdjson; +using namespace simdjson::dom; +} // namespace + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() + : simdjson::implementation("ppc64", "PPC64 ALTIVEC", + internal::instruction_set::ALTIVEC) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, size_t max_length, + std::unique_ptr &dst) + const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, + uint8_t *dst, + size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, + size_t len) const noexcept final; +}; + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_IMPLEMENTATION_H +/* end file include/simdjson/ppc64/implementation.h */ + +/* begin file include/simdjson/ppc64/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "ppc64" +// #define SIMDJSON_IMPLEMENTATION ppc64 +/* end file include/simdjson/ppc64/begin.h */ + +// Declarations +/* begin file include/simdjson/generic/dom_parser_implementation.h */ + +namespace simdjson { +namespace ppc64 { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { +namespace ppc64 { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace ppc64 +} // namespace simdjson +/* end file include/simdjson/generic/dom_parser_implementation.h */ +/* begin file include/simdjson/ppc64/intrinsics.h */ +#ifndef SIMDJSON_PPC64_INTRINSICS_H +#define SIMDJSON_PPC64_INTRINSICS_H + + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +// These are defined by altivec.h in GCC toolchain, it is safe to undef them. +#ifdef bool +#undef bool +#endif + +#ifdef vector +#undef vector +#endif + +static_assert(sizeof(__vector unsigned char) <= simdjson::SIMDJSON_PADDING, "insufficient padding for ppc64"); + +#endif // SIMDJSON_PPC64_INTRINSICS_H +/* end file include/simdjson/ppc64/intrinsics.h */ +/* begin file include/simdjson/ppc64/bitmanipulation.h */ +#ifndef SIMDJSON_PPC64_BITMANIPULATION_H +#define SIMDJSON_PPC64_BITMANIPULATION_H + +namespace simdjson { +namespace ppc64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num - 1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline int count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows + return __popcnt64(input_num); // Visual Studio wants two underscores +} +#else +simdjson_inline int count_ones(uint64_t input_num) { + return __builtin_popcountll(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_BITMANIPULATION_H +/* end file include/simdjson/ppc64/bitmanipulation.h */ +/* begin file include/simdjson/ppc64/bitmask.h */ +#ifndef SIMDJSON_PPC64_BITMASK_H +#define SIMDJSON_PPC64_BITMASK_H + +namespace simdjson { +namespace ppc64 { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is +// encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + // You can use the version below, however gcc sometimes miscompiles + // vec_pmsum_be, it happens somewhere around between 8 and 9th version. + // The performance boost was not noticeable, falling back to a usual + // implementation. + // __vector unsigned long long all_ones = {~0ull, ~0ull}; + // __vector unsigned long long mask = {bitmask, 0}; + // // Clang and GCC return different values for pmsum for ull so cast it to one. + // // Generally it is not specified by ALTIVEC ISA what is returned by + // // vec_pmsum_be. + // #if defined(__LITTLE_ENDIAN__) + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[0]); + // #else + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[1]); + // #endif + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif +/* end file include/simdjson/ppc64/bitmask.h */ +/* begin file include/simdjson/ppc64/simd.h */ +#ifndef SIMDJSON_PPC64_SIMD_H +#define SIMDJSON_PPC64_SIMD_H + +#include + +namespace simdjson { +namespace ppc64 { +namespace { +namespace simd { + +using __m128i = __vector unsigned char; + +template struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i &() const { + return this->value; + } + simdjson_inline operator __m128i &() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { + return vec_or(this->value, (__m128i)other); + } + simdjson_inline Child operator&(const Child other) const { + return vec_and(this->value, (__m128i)other); + } + simdjson_inline Child operator^(const Child other) const { + return vec_xor(this->value, (__m128i)other); + } + simdjson_inline Child bit_andnot(const Child other) const { + return vec_andc(this->value, (__m128i)other); + } + simdjson_inline Child &operator|=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast | other; + return *this_cast; + } + simdjson_inline Child &operator&=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast & other; + return *this_cast; + } + simdjson_inline Child &operator^=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast ^ other; + return *this_cast; + } +}; + +// Forward-declared so they can be used by splat and friends. +template struct simd8; + +template > +struct base8 : base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { + return (__m128i)vec_cmpeq(lhs.value, (__m128i)rhs); + } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(simd8 prev_chunk) const { + __m128i chunk = this->value; +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve(this->value); + prev_chunk = (__m128i)vec_reve((__m128i)prev_chunk); +#endif + chunk = (__m128i)vec_sld((__m128i)prev_chunk, (__m128i)chunk, 16 - N); +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve((__m128i)chunk); +#endif + return chunk; + } +}; + +// SIMD byte mask type (returned by things like eq and gt) +template <> struct simd8 : base8 { + static simdjson_inline simd8 splat(bool _value) { + return (__m128i)vec_splats((unsigned char)(-(!!_value))); + } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) + : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) + : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { + __vector unsigned long long result; + const __m128i perm_mask = {0x78, 0x70, 0x68, 0x60, 0x58, 0x50, 0x48, 0x40, + 0x38, 0x30, 0x28, 0x20, 0x18, 0x10, 0x08, 0x00}; + + result = ((__vector unsigned long long)vec_vbpermq((__m128i)this->value, + (__m128i)perm_mask)); +#ifdef __LITTLE_ENDIAN__ + return static_cast(result[1]); +#else + return static_cast(result[0]); +#endif + } + simdjson_inline bool any() const { + return !vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline simd8 operator~() const { + return this->value ^ (__m128i)splat(true); + } +}; + +template struct base8_numeric : base8 { + static simdjson_inline simd8 splat(T value) { + (void)value; + return (__m128i)vec_splats(value); + } + static simdjson_inline simd8 zero() { return splat(0); } + static simdjson_inline simd8 load(const T values[16]) { + return (__m128i)(vec_vsx_ld(0, reinterpret_cast(values))); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16(T v0, T v1, T v2, T v3, T v4, + T v5, T v6, T v7, T v8, T v9, + T v10, T v11, T v12, T v13, + T v14, T v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, + v14, v15); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) + : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { + vec_vsx_st(this->value, 0, reinterpret_cast<__m128i *>(dst)); + } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { + return (__m128i)((__m128i)this->value + (__m128i)other); + } + simdjson_inline simd8 operator-(const simd8 other) const { + return (__m128i)((__m128i)this->value - (__m128i)other); + } + simdjson_inline simd8 &operator+=(const simd8 other) { + *this = *this + other; + return *static_cast *>(this); + } + simdjson_inline simd8 &operator-=(const simd8 other) { + *this = *this - other; + return *static_cast *>(this); + } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior + // for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return (__m128i)vec_perm((__m128i)lookup_table, (__m128i)lookup_table, this->value); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted + // as a bitset). Passing a 0 value for mask would be equivalent to writing out + // every byte to output. Only the first 16 - count_ones(mask) bytes of the + // result are significant but 16 bytes get written. Design consideration: it + // seems like a function with the signature simd8 compress(uint32_t mask) + // would be sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L *output) const { + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + using internal::thintable_epi8; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. +#ifdef __LITTLE_ENDIAN__ + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask1], thintable_epi8[mask2]}; +#else + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask2], thintable_epi8[mask1]}; + shufmask = (__m128i)vec_reve((__m128i)shufmask); +#endif + // we increment by 0x08 the second half of the mask + shufmask = ((__m128i)shufmask) + + ((__m128i)(__vector int){0, 0, 0x08080808, 0x08080808}); + + // this is the version "nearly pruned" + __m128i pruned = vec_perm(this->value, this->value, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + vec_vsx_ld(0, reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = vec_perm(pruned, (__m128i)vec_splats(0), compactmask); + vec_vsx_st(answer, 0, reinterpret_cast<__m128i *>(output)); + } + + template + simdjson_inline simd8 + lookup_16(L replace0, L replace1, L replace2, L replace3, L replace4, + L replace5, L replace6, L replace7, L replace8, L replace9, + L replace10, L replace11, L replace12, L replace13, L replace14, + L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, replace4, replace5, replace6, + replace7, replace8, replace9, replace10, replace11, replace12, + replace13, replace14, replace15)); + } +}; + +// Signed bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8(int8_t v0, int8_t v1, int8_t v2, int8_t v3, + int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) + : simd8((__m128i)(__vector signed char){v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10, v11, v12, v13, v14, + v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, + int8_t v6, int8_t v7, int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Order-sensitive comparisons + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return (__m128i)vec_cmpgt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return (__m128i)vec_cmplt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } +}; + +// Unsigned bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline + simd8(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, + uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, uint8_t v10, + uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15) + : simd8((__m128i){v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, + uint8_t v5, uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, + uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, + uint8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Saturated math + simdjson_inline simd8 + saturating_add(const simd8 other) const { + return (__m128i)vec_adds(this->value, (__m128i)other); + } + simdjson_inline simd8 + saturating_sub(const simd8 other) const { + return (__m128i)vec_subs(this->value, (__m128i)other); + } + + // Order-specific operations + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max(this->value, (__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min(this->value, (__m128i)other); + } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + gt_bits(const simd8 other) const { + return this->saturating_sub(other); + } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + lt_bits(const simd8 other) const { + return other.saturating_sub(*this); + } + simdjson_inline simd8 + operator<=(const simd8 other) const { + return other.max_val(*this) == other; + } + simdjson_inline simd8 + operator>=(const simd8 other) const { + return other.min_val(*this) == other; + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { + return (__m128i)vec_cmpeq(this->value, (__m128i)vec_splats(uint8_t(0))); + } + simdjson_inline simd8 bits_not_set(simd8 bits) const { + return (*this & bits).bits_not_set(); + } + simdjson_inline simd8 any_bits_set() const { + return ~this->bits_not_set(); + } + simdjson_inline simd8 any_bits_set(simd8 bits) const { + return ~this->bits_not_set(bits); + } + simdjson_inline bool bits_not_set_anywhere() const { + return vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere() const { + return !bits_not_set_anywhere(); + } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { + return vec_all_eq(vec_and(this->value, (__m128i)bits), + (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { + return !bits_not_set_anywhere(bits); + } + template simdjson_inline simd8 shr() const { + return simd8( + (__m128i)vec_sr(this->value, (__m128i)vec_splat_u8(N))); + } + template simdjson_inline simd8 shl() const { + return simd8( + (__m128i)vec_sl(this->value, (__m128i)vec_splat_u8(N))); + } +}; + +template struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, + "PPC64 kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64 &o) = delete; // no copy allowed + simd8x64 & + operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, + const simd8 chunk2, const simd8 chunk3) + : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) + : chunks{simd8::load(ptr), simd8::load(ptr + 16), + simd8::load(ptr + 32), simd8::load(ptr + 48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr + sizeof(simd8) * 0); + this->chunks[1].store(ptr + sizeof(simd8) * 1); + this->chunks[2].store(ptr + sizeof(simd8) * 2); + this->chunks[3].store(ptr + sizeof(simd8) * 3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | + (this->chunks[2] | this->chunks[3]); + } + + simdjson_inline uint64_t compress(uint64_t mask, T *output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), + output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), + output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), + output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r1 = this->chunks[1].to_bitmask(); + uint64_t r2 = this->chunks[2].to_bitmask(); + uint64_t r3 = this->chunks[3].to_bitmask(); + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] == mask, this->chunks[1] == mask, + this->chunks[2] == mask, this->chunks[3] == mask) + .to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64(this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3]) + .to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] <= mask, this->chunks[1] <= mask, + this->chunks[2] <= mask, this->chunks[3] <= mask) + .to_bitmask(); + } +}; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_SIMD_INPUT_H +/* end file include/simdjson/ppc64/simd.h */ +/* begin file include/simdjson/generic/jsoncharutils.h */ + +namespace simdjson { +namespace ppc64 { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +using internal::value128; + +simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { + value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file include/simdjson/generic/jsoncharutils.h */ +/* begin file include/simdjson/generic/atomparsing.h */ +namespace simdjson { +namespace ppc64 { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson +/* end file include/simdjson/generic/atomparsing.h */ +/* begin file include/simdjson/ppc64/stringparsing.h */ +#ifndef SIMDJSON_PPC64_STRINGPARSING_H +#define SIMDJSON_PPC64_STRINGPARSING_H + + +namespace simdjson { +namespace ppc64 { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote + copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { + return ((bs_bits - 1) & quote_bits) != 0; + } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { + return trailing_zeroes(quote_bits); + } + simdjson_inline int backslash_index() { + return trailing_zeroes(bs_bits); + } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote +backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), + "backslash and quote finder must process fewer than " + "SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on + // PPC; therefore, we smash them together into a 64-byte mask and get the + // bitmask from there. + uint64_t bs_and_quote = + simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_STRINGPARSING_H +/* end file include/simdjson/ppc64/stringparsing.h */ +/* begin file include/simdjson/ppc64/numberparsing.h */ +#ifndef SIMDJSON_PPC64_NUMBERPARSING_H +#define SIMDJSON_PPC64_NUMBERPARSING_H + +#if defined(__linux__) +#include +#elif defined(__FreeBSD__) +#include +#endif + +namespace simdjson { +namespace ppc64 { +namespace numberparsing { + +// we don't have appropriate instructions, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); +#ifdef __BIG_ENDIAN__ +#if defined(__linux__) + val = bswap_64(val); +#elif defined(__FreeBSD__) + val = bswap64(val); +#endif +#endif + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +} // namespace numberparsing +} // namespace ppc64 +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +/* begin file include/simdjson/generic/numberparsing.h */ +#include + +namespace simdjson { +namespace ppc64 { +/// @private +namespace numberparsing { + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace numberparsing +} // namespace ppc64 +} // namespace simdjson +/* end file include/simdjson/generic/numberparsing.h */ + +#endif // SIMDJSON_PPC64_NUMBERPARSING_H +/* end file include/simdjson/ppc64/numberparsing.h */ +/* begin file include/simdjson/ppc64/end.h */ +/* end file include/simdjson/ppc64/end.h */ + +#endif // SIMDJSON_IMPLEMENTATION_PPC64 + +#endif // SIMDJSON_PPC64_H +/* end file include/simdjson/ppc64.h */ +/* begin file include/simdjson/westmere.h */ +#ifndef SIMDJSON_WESTMERE_H +#define SIMDJSON_WESTMERE_H + + +#if SIMDJSON_IMPLEMENTATION_WESTMERE + +#if SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +#define SIMDJSON_TARGET_WESTMERE +#define SIMDJSON_UNTARGET_WESTMERE +#else +#define SIMDJSON_TARGET_WESTMERE SIMDJSON_TARGET_REGION("sse4.2,pclmul,popcnt") +#define SIMDJSON_UNTARGET_WESTMERE SIMDJSON_UNTARGET_REGION +#endif + +namespace simdjson { +/** + * Implementation for Westmere (Intel SSE4.2). + */ +namespace westmere { +} // namespace westmere +} // namespace simdjson + +// +// These two need to be included outside SIMDJSON_TARGET_WESTMERE +// +/* begin file include/simdjson/westmere/implementation.h */ +#ifndef SIMDJSON_WESTMERE_IMPLEMENTATION_H +#define SIMDJSON_WESTMERE_IMPLEMENTATION_H + + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +namespace westmere { + +namespace { +using namespace simdjson; +using namespace simdjson::dom; +} + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation("westmere", "Intel/AMD SSE4.2", internal::instruction_set::SSE42 | internal::instruction_set::PCLMULQDQ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_IMPLEMENTATION_H +/* end file include/simdjson/westmere/implementation.h */ +/* begin file include/simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 +#endif + +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); + +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file include/simdjson/westmere/intrinsics.h */ + +// +// The rest need to be inside the region +// +/* begin file include/simdjson/westmere/begin.h */ +// redefining SIMDJSON_IMPLEMENTATION to "westmere" +// #define SIMDJSON_IMPLEMENTATION westmere +SIMDJSON_TARGET_WESTMERE +/* end file include/simdjson/westmere/begin.h */ + +// Declarations +/* begin file include/simdjson/generic/dom_parser_implementation.h */ + +namespace simdjson { +namespace westmere { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace westmere +} // namespace simdjson + +namespace simdjson { +namespace westmere { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace westmere +} // namespace simdjson +/* end file include/simdjson/generic/dom_parser_implementation.h */ +/* begin file include/simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H + +namespace simdjson { +namespace westmere { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file include/simdjson/westmere/bitmanipulation.h */ +/* begin file include/simdjson/westmere/bitmask.h */ +#ifndef SIMDJSON_WESTMERE_BITMASK_H +#define SIMDJSON_WESTMERE_BITMASK_H + +namespace simdjson { +namespace westmere { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processing supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BITMASK_H +/* end file include/simdjson/westmere/bitmask.h */ +/* begin file include/simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H + + +namespace simdjson { +namespace westmere { +namespace { +namespace simd { + + template + struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + // Forward-declared so they can be used by splat and friends. + template + struct simd8; + + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file include/simdjson/westmere/simd.h */ +/* begin file include/simdjson/generic/jsoncharutils.h */ + +namespace simdjson { +namespace westmere { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +using internal::value128; + +simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { + value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file include/simdjson/generic/jsoncharutils.h */ +/* begin file include/simdjson/generic/atomparsing.h */ +namespace simdjson { +namespace westmere { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +/* end file include/simdjson/generic/atomparsing.h */ +/* begin file include/simdjson/westmere/stringparsing.h */ +#ifndef SIMDJSON_WESTMERE_STRINGPARSING_H +#define SIMDJSON_WESTMERE_STRINGPARSING_H + +namespace simdjson { +namespace westmere { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + 16); + v0.store(dst); + v1.store(dst + 16); + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_STRINGPARSING_H +/* end file include/simdjson/westmere/stringparsing.h */ +/* begin file include/simdjson/westmere/numberparsing.h */ +#ifndef SIMDJSON_WESTMERE_NUMBERPARSING_H +#define SIMDJSON_WESTMERE_NUMBERPARSING_H + +namespace simdjson { +namespace westmere { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +} // namespace numberparsing +} // namespace westmere +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +/* begin file include/simdjson/generic/numberparsing.h */ +#include + +namespace simdjson { +namespace westmere { +/// @private +namespace numberparsing { + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace numberparsing +} // namespace westmere +} // namespace simdjson +/* end file include/simdjson/generic/numberparsing.h */ + +#endif // SIMDJSON_WESTMERE_NUMBERPARSING_H +/* end file include/simdjson/westmere/numberparsing.h */ +/* begin file include/simdjson/westmere/end.h */ +SIMDJSON_UNTARGET_WESTMERE +/* end file include/simdjson/westmere/end.h */ + +#endif // SIMDJSON_IMPLEMENTATION_WESTMERE +#endif // SIMDJSON_WESTMERE_COMMON_H +/* end file include/simdjson/westmere.h */ + +// Builtin implementation + +SIMDJSON_POP_DISABLE_WARNINGS + +#endif // SIMDJSON_IMPLEMENTATIONS_H +/* end file include/simdjson/implementations.h */ + +// Determine the best builtin implementation +#ifndef SIMDJSON_BUILTIN_IMPLEMENTATION +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +#define SIMDJSON_BUILTIN_IMPLEMENTATION icelake +#elif SIMDJSON_CAN_ALWAYS_RUN_HASWELL +#define SIMDJSON_BUILTIN_IMPLEMENTATION haswell +#elif SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +#define SIMDJSON_BUILTIN_IMPLEMENTATION westmere +#elif SIMDJSON_CAN_ALWAYS_RUN_ARM64 +#define SIMDJSON_BUILTIN_IMPLEMENTATION arm64 +#elif SIMDJSON_CAN_ALWAYS_RUN_PPC64 +#define SIMDJSON_BUILTIN_IMPLEMENTATION ppc64 +#elif SIMDJSON_CAN_ALWAYS_RUN_FALLBACK +#define SIMDJSON_BUILTIN_IMPLEMENTATION fallback +#else +#error "All possible implementations (including fallback) have been disabled! simdjson will not run." +#endif +#endif // SIMDJSON_BUILTIN_IMPLEMENTATION + +// redefining SIMDJSON_IMPLEMENTATION to "SIMDJSON_BUILTIN_IMPLEMENTATION" +// #define SIMDJSON_IMPLEMENTATION SIMDJSON_BUILTIN_IMPLEMENTATION + +// ondemand is only compiled as part of the builtin implementation at present + +// Interface declarations +/* begin file include/simdjson/generic/implementation_simdjson_result_base.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson +/* end file include/simdjson/generic/implementation_simdjson_result_base.h */ +/* begin file include/simdjson/generic/ondemand.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +/** + * A fast, simple, DOM-like interface that parses JSON as you use it. + * + * Designed for maximum speed and a lower memory profile. + */ +namespace ondemand { + +/** Represents the depth of a JSON value (number of nested arrays/objects). */ +using depth_t = int32_t; + +/** @copydoc simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::numberparsing::number_type */ +using number_type = simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::numberparsing::number_type; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +/* begin file include/simdjson/generic/ondemand/json_type.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { +/** + * The type of a JSON value. + */ +enum class json_type { + // Start at 1 to catch uninitialized / default values more easily + array=1, ///< A JSON array ( [ 1, 2, 3 ... ] ) + object, ///< A JSON object ( { "a": 1, "b" 2, ... } ) + number, ///< A JSON number ( 1 or -2.3 or 4.5e6 ...) + string, ///< A JSON string ( "a" or "hello world\n" ...) + boolean, ///< A JSON boolean (true or false) + null ///< A JSON null (null) +}; + +class value_iterator; + +/** + * A type representing a JSON number. + * The design of the struct is deliberately straight-forward. All + * functions return standard values with no error check. + */ +struct number { + + /** + * return the automatically determined type of + * the number: number_type::floating_point_number, + * number_type::signed_integer or number_type::unsigned_integer. + * + * enum class number_type { + * floating_point_number=1, /// a binary64 number + * signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + * unsigned_integer /// a positive integer larger or equal to 1<<63 + * }; + */ + simdjson_inline number_type get_number_type() const noexcept; + /** + * return true if the automatically determined type of + * the number is number_type::unsigned_integer. + */ + simdjson_inline bool is_uint64() const noexcept; + /** + * return the value as a uint64_t, only valid if is_uint64() is true. + */ + simdjson_inline uint64_t get_uint64() const noexcept; + simdjson_inline operator uint64_t() const noexcept; + + /** + * return true if the automatically determined type of + * the number is number_type::signed_integer. + */ + simdjson_inline bool is_int64() const noexcept; + /** + * return the value as a int64_t, only valid if is_int64() is true. + */ + simdjson_inline int64_t get_int64() const noexcept; + simdjson_inline operator int64_t() const noexcept; + + + /** + * return true if the automatically determined type of + * the number is number_type::floating_point_number. + */ + simdjson_inline bool is_double() const noexcept; + /** + * return the value as a double, only valid if is_double() is true. + */ + simdjson_inline double get_double() const noexcept; + simdjson_inline operator double() const noexcept; + + /** + * Convert the number to a double. Though it always succeed, the conversion + * may be lossy if the number cannot be represented exactly. + */ + simdjson_inline double as_double() const noexcept; + + +protected: + /** + * The next block of declaration is designed so that we can call the number parsing + * functions on a number type. They are protected and should never be used outside + * of the core simdjson library. + */ + friend class value_iterator; + template + friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer); + template + friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer); + template + friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer); + /** Store a signed 64-bit value to the number. */ + simdjson_inline void append_s64(int64_t value) noexcept; + /** Store an unsigned 64-bit value to the number. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + /** Store a double value to the number. */ + simdjson_inline void append_double(double value) noexcept; + /** Specifies that the value is a double, but leave it undefined. */ + simdjson_inline void skip_double() noexcept; + /** + * End of friend declarations. + */ + + /** + * Our attributes are a union type (size = 64 bits) + * followed by a type indicator. + */ + union { + double floating_point_number; + int64_t signed_integer; + uint64_t unsigned_integer; + } payload{0}; + number_type type{number_type::signed_integer}; +}; + +/** + * Write the JSON type to the output stream + * + * @param out The output stream. + * @param type The json_type. + */ +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept; + +#if SIMDJSON_EXCEPTIONS +/** + * Send JSON type to an output stream. + * + * @param out The output stream. + * @param type The json_type. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false); +#endif + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_type &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/json_type.h */ +/* begin file include/simdjson/generic/ondemand/token_position.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +/** @private Position in the JSON buffer indexes */ +using token_position = const uint32_t *; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/token_position.h */ +/* begin file include/simdjson/generic/ondemand/logger.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class json_iterator; +class value_iterator; + +// Logging should be free unless SIMDJSON_VERBOSE_LOGGING is set. Importantly, it is critical +// that the call to the log functions be side-effect free. Thus, for example, you should not +// create temporary std::string instances. +namespace logger { + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + +// We do not want these functions to be 'really inlined' since real inlining is +// for performance purposes and if you are using the loggers, you do not care about +// performance (or should not). +static inline void log_headers() noexcept; +static inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept; +static inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept; +static inline void log_event(const json_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_value(const json_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_start_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail="") noexcept; +static inline void log_error(const json_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +static inline void log_event(const value_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const value_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_error(const value_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +} // namespace logger +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/logger.h */ +/* begin file include/simdjson/generic/ondemand/raw_json_string.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class object; +class parser; +class json_iterator; + +/** + * A string escaped per JSON rules, terminated with quote ("). They are used to represent + * unescaped keys inside JSON documents. + * + * (In other words, a pointer to the beginning of a string, just after the start quote, inside a + * JSON file.) + * + * This class is deliberately simplistic and has little functionality. You can + * compare a raw_json_string instance with an unescaped C string, but + * that is nearly all you can do. + * + * The raw_json_string is unescaped. If you wish to write an unescaped version of it to your own + * buffer, you may do so using the parser.unescape(string, buff) method, using an ondemand::parser + * instance. Doing so requires you to have a sufficiently large buffer. + * + * The raw_json_string instances originate typically from field instance which in turn represent + * key-value pairs from object instances. From a field instance, you get the raw_json_string + * instance by calling key(). You can, if you want a more usable string_view instance, call + * the unescaped_key() method on the field instance. You may also create a raw_json_string from + * any other string value, with the value.get_raw_json_string() method. Again, you can get + * a more usable string_view instance by calling get_string(). + * + */ +class raw_json_string { +public: + /** + * Create a new invalid raw_json_string. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline raw_json_string() noexcept = default; + + /** + * Create a new invalid raw_json_string pointed at the given location in the JSON. + * + * The given location must be just *after* the beginning quote (") in the JSON file. + * + * It *must* be terminated by a ", and be a valid JSON string. + */ + simdjson_inline raw_json_string(const uint8_t * _buf) noexcept; + /** + * Get the raw pointer to the beginning of the string in the JSON (just after the "). + * + * It is possible for this function to return a null pointer if the instance + * has outlived its existence. + */ + simdjson_inline const char * raw() const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done) on target.size() characters, + * and if the raw_json_string instance has a quote character at byte index target.size(). + * We never read more than length + 1 bytes in the raw_json_string instance. + * If length is smaller than target.size(), this will return false. + * + * The std::string_view instance may contain any characters. However, the caller + * is responsible for setting length so that length bytes may be read in the + * raw_json_string. + * + * Performance: the comparison may be done using memcmp which may be efficient + * for long strings. + */ + simdjson_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The std::string_view instance should not contain unescaped quote characters: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * Performance: the comparison is done byte-by-byte which might be inefficient for + * long strings. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The provided C string should not contain an unescaped quote character: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(const char* target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(const char* target) const noexcept; + + /** + * Returns true if target is free from unescaped quote. If target is known at + * compile-time, we might expect the computation to happen at compile time with + * many compilers (not all!). + */ + static simdjson_inline bool is_free_from_unescaped_quote(std::string_view target) noexcept; + static simdjson_inline bool is_free_from_unescaped_quote(const char* target) noexcept; + +private: + + + /** + * This will set the inner pointer to zero, effectively making + * this instance unusable. + */ + simdjson_inline void consume() noexcept { buf = nullptr; } + + /** + * Checks whether the inner pointer is non-null and thus usable. + */ + simdjson_inline simdjson_warn_unused bool alive() const noexcept { return buf != nullptr; } + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result will be a valid UTF-8. + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + * @param allow_replacement Whether we allow replacement of invalid surrogate pairs. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape(json_iterator &iter, bool allow_replacement) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result may not be a valid UTF-8. https://simonsapin.github.io/wtf-8/ + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(json_iterator &iter) const noexcept; + const uint8_t * buf{}; + friend class object; + friend class field; + friend class parser; + friend struct simdjson_result; +}; + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &, const raw_json_string &) noexcept; + +/** + * Comparisons between raw_json_string and std::string_view instances are potentially unsafe: the user is responsible + * for providing a string with no unescaped quote. Note that unescaped quotes cannot be present in valid JSON strings. + */ +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept; +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept; + + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private + + simdjson_inline simdjson_result raw() const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &iter, bool allow_replacement) const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &iter) const noexcept; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/raw_json_string.h */ +/* begin file include/simdjson/generic/ondemand/token_iterator.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +/** + * Iterates through JSON tokens (`{` `}` `[` `]` `,` `:` `""` `123` `true` `false` `null`) + * detected by stage 1. + * + * @private This is not intended for external use. + */ +class token_iterator { +public: + /** + * Create a new invalid token_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline token_iterator() noexcept = default; + simdjson_inline token_iterator(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator &operator=(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator(const token_iterator &other) noexcept = default; + simdjson_inline token_iterator &operator=(const token_iterator &other) noexcept = default; + + /** + * Advance to the next token (returning the current one). + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + /** + * Reports the current offset in bytes from the start of the underlying buffer. + */ + simdjson_inline uint32_t current_offset() const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + + /** + * Return the current index. + */ + simdjson_inline token_position position() const noexcept; + /** + * Reset to a previously saved index. + */ + simdjson_inline void set_position(token_position target_position) noexcept; + + // NOTE: we don't support a full C++ iterator interface, because we expect people to make + // different calls to advance the iterator based on *their own* state. + + simdjson_inline bool operator==(const token_iterator &other) const noexcept; + simdjson_inline bool operator!=(const token_iterator &other) const noexcept; + simdjson_inline bool operator>(const token_iterator &other) const noexcept; + simdjson_inline bool operator>=(const token_iterator &other) const noexcept; + simdjson_inline bool operator<(const token_iterator &other) const noexcept; + simdjson_inline bool operator<=(const token_iterator &other) const noexcept; + +protected: + simdjson_inline token_iterator(const uint8_t *buf, token_position position) noexcept; + + /** + * Get the index of the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_index(int32_t delta=0) const noexcept; + /** + * Get the index of the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline uint32_t peek_index(token_position position) const noexcept; + + const uint8_t *buf{}; + token_position _position{}; + + friend class json_iterator; + friend class value_iterator; + friend class object; + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept; + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept; +}; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::token_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/token_iterator.h */ +/* begin file include/simdjson/generic/ondemand/json_iterator.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class document; +class document_stream; +class object; +class array; +class value; +class raw_json_string; +class parser; + +/** + * Iterates through JSON tokens, keeping track of depth and string buffer. + * + * @private This is not intended for external use. + */ +class json_iterator { +protected: + token_iterator token{}; + ondemand::parser *parser{}; + /** + * Next free location in the string buffer. + * + * Used by raw_json_string::unescape() to have a place to unescape strings to. + */ + uint8_t *_string_buf_loc{}; + /** + * JSON error, if there is one. + * + * INCORRECT_TYPE and NO_SUCH_FIELD are *not* stored here, ever. + * + * PERF NOTE: we *hope* this will be elided into control flow, as it is only used (a) in the first + * iteration of the loop, or (b) for the final iteration after a missing comma is found in ++. If + * this is not elided, we should make sure it's at least not using up a register. Failing that, + * we should store it in document so there's only one of them. + */ + error_code error{SUCCESS}; + /** + * Depth of the current token in the JSON. + * + * - 0 = finished with document + * - 1 = document root value (could be [ or {, not yet known) + * - 2 = , or } inside root array/object + * - 3 = key or value inside root array/object. + */ + depth_t _depth{}; + /** + * Beginning of the document indexes. + * Normally we have root == parser->implementation->structural_indexes.get() + * but this may differ, especially in streaming mode (where we have several + * documents); + */ + token_position _root{}; + /** + * Normally, a json_iterator operates over a single document, but in + * some cases, we may have a stream of documents. This attribute is meant + * as meta-data: the json_iterator works the same irrespective of the + * value of this attribute. + */ + bool _streaming{false}; + +public: + simdjson_inline json_iterator() noexcept = default; + simdjson_inline json_iterator(json_iterator &&other) noexcept; + simdjson_inline json_iterator &operator=(json_iterator &&other) noexcept; + simdjson_inline explicit json_iterator(const json_iterator &other) noexcept = default; + simdjson_inline json_iterator &operator=(const json_iterator &other) noexcept = default; + /** + * Skips a JSON value, whether it is a scalar, array or object. + */ + simdjson_warn_unused simdjson_inline error_code skip_child(depth_t parent_depth) noexcept; + + /** + * Tell whether the iterator is still at the start + */ + simdjson_inline bool at_root() const noexcept; + + /** + * Tell whether we should be expected to run in streaming + * mode (iterating over many documents). It is pure metadata + * that does not affect how the iterator works. It is used by + * start_root_array() and start_root_object(). + */ + simdjson_inline bool streaming() const noexcept; + + /** + * Get the root value iterator + */ + simdjson_inline token_position root_position() const noexcept; + /** + * Assert that we are at the document depth (== 1) + */ + simdjson_inline void assert_at_document_depth() const noexcept; + /** + * Assert that we are at the root of the document + */ + simdjson_inline void assert_at_root() const noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is live (has not been moved). + */ + simdjson_inline bool is_alive() const noexcept; + + /** + * Abandon this iterator, setting depth to 0 (as if the document is finished). + */ + simdjson_inline void abandon() noexcept; + + /** + * Advance the current token without modifying depth. + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + + /** + * Returns true if there is a single token in the index (i.e., it is + * a JSON with a scalar value such as a single number). + * + * @return whether there is a single token + */ + simdjson_inline bool is_single_token() const noexcept; + + /** + * Assert that there are at least the given number of tokens left. + * + * Has no effect in release builds. + */ + simdjson_inline void assert_more_tokens(uint32_t required_tokens=1) const noexcept; + /** + * Assert that the given position addresses an actual token (is within bounds). + * + * Has no effect in release builds. + */ + simdjson_inline void assert_valid_position(token_position position) const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + /** + * Get a pointer to the current location in the input buffer. + * + * This is not null-terminated; it is a view into the JSON. + * + * You may be pointing outside of the input buffer: it is not generally + * safe to dereference this pointer. + */ + simdjson_inline const uint8_t *unsafe_pointer() const noexcept; + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token to retrieve. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token to retrieve. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + /** + * Get the JSON text for the last token in the document. + * + * This is not null-terminated; it is a view into the JSON. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek_last() const noexcept; + + /** + * Ascend one level. + * + * Validates that the depth - 1 == parent_depth. + * + * @param parent_depth the expected parent depth. + */ + simdjson_inline void ascend_to(depth_t parent_depth) noexcept; + + /** + * Descend one level. + * + * Validates that the new depth == child_depth. + * + * @param child_depth the expected child depth. + */ + simdjson_inline void descend_to(depth_t child_depth) noexcept; + simdjson_inline void descend_to(depth_t child_depth, int32_t delta) noexcept; + + /** + * Get current depth. + */ + simdjson_inline depth_t depth() const noexcept; + + /** + * Get current (writeable) location in the string buffer. + */ + simdjson_inline uint8_t *&string_buf_loc() noexcept; + + /** + * Report an unrecoverable error, preventing further iteration. + * + * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + /** + * Log error, but don't stop iteration. + * @param error The error to report. Must be INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code optional_error(error_code error, const char *message) noexcept; + + /** + * Take an input in json containing max_len characters and attempt to copy it over to tmpbuf, a buffer with + * N bytes of capacity. It will return false if N is too small (smaller than max_len) of if it is zero. + * The buffer (tmpbuf) is padded with space characters. + */ + simdjson_warn_unused simdjson_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept; + + simdjson_inline token_position position() const noexcept; + /** + * Write the raw_json_string to the string buffer and return a string_view. + * Each raw_json_string should be unescaped once, or else the string buffer might + * overflow. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, bool allow_replacement) noexcept; + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in) noexcept; + simdjson_inline void reenter_child(token_position position, depth_t child_depth) noexcept; + + simdjson_inline error_code consume_character(char c) noexcept; +#if SIMDJSON_DEVELOPMENT_CHECKS + simdjson_inline token_position start_position(depth_t depth) const noexcept; + simdjson_inline void set_start_position(depth_t depth, token_position position) noexcept; +#endif + + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Updates this json iterator so that it is back at the beginning of the document, + * as if it had just been created. + */ + inline void rewind() noexcept; + /** + * This checks whether the {,},[,] are balanced so that the document + * ends with proper zero depth. This requires scanning the whole document + * and it may be expensive. It is expected that it will be rarely called. + * It does not attempt to match { with } and [ with ]. + */ + inline bool balanced() const noexcept; +protected: + simdjson_inline json_iterator(const uint8_t *buf, ondemand::parser *parser) noexcept; + /// The last token before the end + simdjson_inline token_position last_position() const noexcept; + /// The token *at* the end. This points at gibberish and should only be used for comparison. + simdjson_inline token_position end_position() const noexcept; + /// The end of the buffer. + simdjson_inline token_position end() const noexcept; + + friend class document; + friend class document_stream; + friend class object; + friend class array; + friend class value; + friend class raw_json_string; + friend class parser; + friend class value_iterator; + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept; + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept; +}; // json_iterator + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/json_iterator.h */ +/* begin file include/simdjson/generic/ondemand/value_iterator.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class document; +class object; +class array; +class value; +class raw_json_string; +class parser; + +/** + * Iterates through a single JSON value at a particular depth. + * + * Does not keep track of the type of value: provides methods for objects, arrays and scalars and expects + * the caller to call the right ones. + * + * @private This is not intended for external use. + */ +class value_iterator { +protected: + /** The underlying JSON iterator */ + json_iterator *_json_iter{}; + /** The depth of this value */ + depth_t _depth{}; + /** + * The starting token index for this value + */ + token_position _start_position{}; + +public: + simdjson_inline value_iterator() noexcept = default; + + /** + * Denote that we're starting a document. + */ + simdjson_inline void start_document() noexcept; + + /** + * Skips a non-iterated or partially-iterated JSON value, whether it is a scalar, array or object. + * + * Optimized for scalars. + */ + simdjson_warn_unused simdjson_inline error_code skip_child() noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is at the start of the value + */ + simdjson_inline bool at_start() const noexcept; + + /** + * Tell whether the value is open--if the value has not been used, or the array/object is still open. + */ + simdjson_inline bool is_open() const noexcept; + + /** + * Tell whether the value is at an object's first field (just after the {). + */ + simdjson_inline bool at_first_field() const noexcept; + + /** + * Abandon all iteration. + */ + simdjson_inline void abandon() noexcept; + + /** + * Get the child value as a value_iterator. + */ + simdjson_inline value_iterator child_value() const noexcept; + + /** + * Get the depth of this value. + */ + simdjson_inline int32_t depth() const noexcept; + + /** + * Get the JSON type of this value. + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() const noexcept; + + /** + * @addtogroup object Object iteration + * + * Methods to iterate and find object fields. These methods generally *assume* the value is + * actually an object; the caller is responsible for keeping track of that fact. + * + * @{ + */ + + /** + * Start an object iteration. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + */ + simdjson_warn_unused simdjson_inline simdjson_result start_object() noexcept; + /** + * Start an object iteration from the root. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_object() noexcept; + /** + * Checks whether an object could be started from the root. May be called by start_root_object. + * + * @returns SUCCESS if it is possible to safely start an object from the root (document level). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_object() noexcept; + /** + * Start an object iteration after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_object() noexcept; + /** + * Start an object iteration from the root, after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_object() noexcept; + + /** + * Moves to the next field in an object. + * + * Looks for , and }. If } is found, the object is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return whether there is another field in the object. + * @error TAPE_ERROR If there is a comma missing between fields. + * @error TAPE_ERROR If there is a comma, but not enough tokens remaining to have a key, :, and value. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_field() noexcept; + + /** + * Get the current field's key. + */ + simdjson_warn_unused simdjson_inline simdjson_result field_key() noexcept; + + /** + * Pass the : in the field and move to its value. + */ + simdjson_warn_unused simdjson_inline error_code field_value() noexcept; + + /** + * Find the next field with the given key. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline error_code find_field(const std::string_view key) noexcept; + + /** + * Find the next field with the given key, *without* unescaping. This assumes object order: it + * will not find the field if it was already passed when looking for some *other* field. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_raw(const std::string_view key) noexcept; + + /** + * Find the field with the given key without regard to order, and *without* unescaping. + * + * This is an unordered object lookup: if the field is not found initially, it will cycle around and scan from the beginning. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_unordered_raw(const std::string_view key) noexcept; + + /** @} */ + + /** + * @addtogroup array Array iteration + * Methods to iterate over array elements. These methods generally *assume* the value is actually + * an object; the caller is responsible for keeping track of that fact. + * @{ + */ + + /** + * Check for an opening [ and start an array iteration. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + */ + simdjson_warn_unused simdjson_inline simdjson_result start_array() noexcept; + /** + * Check for an opening [ and start an array iteration while at the root. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_array() noexcept; + /** + * Checks whether an array could be started from the root. May be called by start_root_array. + * + * @returns SUCCESS if it is possible to safely start an array from the root (document level). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_array() noexcept; + /** + * Start an array iteration, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_array() noexcept; + /** + * Start an array iteration from the root, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_array() noexcept; + + /** + * Moves to the next element in an array. + * + * Looks for , and ]. If ] is found, the array is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return Whether there is another element in the array. + * @error TAPE_ERROR If there is a comma missing between elements. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_element() noexcept; + + /** + * Get a child value iterator. + */ + simdjson_warn_unused simdjson_inline value_iterator child() const noexcept; + + /** @} */ + + /** + * @defgroup scalar Scalar values + * @addtogroup scalar + * @{ + */ + + simdjson_warn_unused simdjson_inline simdjson_result get_string(bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_bool() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_null() noexcept; + simdjson_warn_unused simdjson_inline bool is_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_integer() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + simdjson_warn_unused simdjson_inline simdjson_result get_root_string(bool check_trailing, bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_wobbly_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_raw_json_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_bool(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline bool is_root_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_integer(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number_type(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_null(bool check_trailing) noexcept; + + simdjson_inline error_code error() const noexcept; + simdjson_inline uint8_t *&string_buf_loc() noexcept; + simdjson_inline const json_iterator &json_iter() const noexcept; + simdjson_inline json_iterator &json_iter() noexcept; + + simdjson_inline void assert_is_valid() const noexcept; + simdjson_inline bool is_valid() const noexcept; + + /** @} */ +protected: + /** + * Restarts an array iteration. + * @returns Whether the array has any elements (returns false for empty). + */ + simdjson_inline simdjson_result reset_array() noexcept; + /** + * Restarts an object iteration. + * @returns Whether the object has any fields (returns false for empty). + */ + simdjson_inline simdjson_result reset_object() noexcept; + /** + * move_at_start(): moves us so that we are pointing at the beginning of + * the container. It updates the index so that at_start() is true and it + * syncs the depth. The user can then create a new container instance. + * + * Usage: used with value::count_elements(). + **/ + simdjson_inline void move_at_start() noexcept; + + /** + * move_at_container_start(): moves us so that we are pointing at the beginning of + * the container so that assert_at_container_start() passes. + * + * Usage: used with reset_array() and reset_object(). + **/ + simdjson_inline void move_at_container_start() noexcept; + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + simdjson_inline value_iterator(json_iterator *json_iter, depth_t depth, token_position start_index) noexcept; + + simdjson_inline simdjson_result parse_null(const uint8_t *json) const noexcept; + simdjson_inline simdjson_result parse_bool(const uint8_t *json) const noexcept; + simdjson_inline const uint8_t *peek_start() const noexcept; + simdjson_inline uint32_t peek_start_length() const noexcept; + + /** + * The general idea of the advance_... methods and the peek_* methods + * is that you first peek and check that you have desired type. If you do, + * and only if you do, then you advance. + * + * We used to unconditionally advance. But this made reasoning about our + * current state difficult. + * Suppose you always advance. Look at the 'value' matching the key + * "shadowable" in the following example... + * + * ({"globals":{"a":{"shadowable":[}}}}) + * + * If the user thinks it is a Boolean and asks for it, then we check the '[', + * decide it is not a Boolean, but still move into the next character ('}'). Now + * we are left pointing at '}' right after a '['. And we have not yet reported + * an error, only that we do not have a Boolean. + * + * If, instead, you just stand your ground until it is content that you know, then + * you will only even move beyond the '[' if the user tells you that you have an + * array. So you will be at the '}' character inside the array and, hopefully, you + * will then catch the error because an array cannot start with '}', but the code + * processing Boolean values does not know this. + * + * So the contract is: first call 'peek_...' and then call 'advance_...' only + * if you have determined that it is a type you can handle. + * + * Unfortunately, it makes the code more verbose, longer and maybe more error prone. + */ + + simdjson_inline void advance_scalar(const char *type) noexcept; + simdjson_inline void advance_root_scalar(const char *type) noexcept; + simdjson_inline void advance_non_root_scalar(const char *type) noexcept; + + simdjson_inline const uint8_t *peek_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_root_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_non_root_scalar(const char *type) noexcept; + + + simdjson_inline error_code start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept; + simdjson_inline error_code end_container() noexcept; + + /** + * Advance to a place expecting a value (increasing depth). + * + * @return The current token (the one left behind). + * @error TAPE_ERROR If the document ended early. + */ + simdjson_inline simdjson_result advance_to_value() noexcept; + + simdjson_inline error_code incorrect_type_error(const char *message) const noexcept; + simdjson_inline error_code error_unless_more_tokens(uint32_t tokens=1) const noexcept; + + simdjson_inline bool is_at_start() const noexcept; + /** + * is_at_iterator_start() returns true on an array or object after it has just been + * created, whether the instance is empty or not. + * + * Usage: used by array::begin() in debug mode (SIMDJSON_DEVELOPMENT_CHECKS) + */ + simdjson_inline bool is_at_iterator_start() const noexcept; + + /** + * Assuming that we are within an object, this returns true if we + * are pointing at a key. + * + * Usage: the skip_child() method should never be used while we are pointing + * at a key inside an object. + */ + simdjson_inline bool is_at_key() const noexcept; + + inline void assert_at_start() const noexcept; + inline void assert_at_container_start() const noexcept; + inline void assert_at_root() const noexcept; + inline void assert_at_child() const noexcept; + inline void assert_at_next() const noexcept; + inline void assert_at_non_root_start() const noexcept; + + /** Get the starting position of this value */ + simdjson_inline token_position start_position() const noexcept; + + /** @copydoc error_code json_iterator::position() const noexcept; */ + simdjson_inline token_position position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position last_position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position end_position() const noexcept; + /** @copydoc error_code json_iterator::report_error(error_code error, const char *message) noexcept; */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + friend class document; + friend class object; + friend class array; + friend class value; +}; // value_iterator + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/value_iterator.h */ +/* begin file include/simdjson/generic/ondemand/array_iterator.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class array; +class value; +class document; + +/** + * A forward-only JSON array. + * + * This is an input_iterator, meaning: + * - It is forward-only + * - * must be called exactly once per element. + * - ++ must be called exactly once in between each * (*, ++, *, ++, * ...) + */ +class array_iterator { +public: + /** Create a new, invalid array iterator. */ + simdjson_inline array_iterator() noexcept = default; + + // + // Iterator interface + // + + /** + * Get the current element. + * + * Part of the std::iterator interface. + */ + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + /** + * Check if we are at the end of the JSON. + * + * Part of the std::iterator interface. + * + * @return true if there are no more elements in the JSON array. + */ + simdjson_inline bool operator==(const array_iterator &) const noexcept; + /** + * Check if there are more elements in the JSON array. + * + * Part of the std::iterator interface. + * + * @return true if there are more elements in the JSON array. + */ + simdjson_inline bool operator!=(const array_iterator &) const noexcept; + /** + * Move to the next element. + * + * Part of the std::iterator interface. + */ + simdjson_inline array_iterator &operator++() noexcept; + +private: + value_iterator iter{}; + + simdjson_inline array_iterator(const value_iterator &iter) noexcept; + + friend class array; + friend class value; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/array_iterator.h */ +/* begin file include/simdjson/generic/ondemand/object_iterator.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class field; + +class object_iterator { +public: + /** + * Create a new invalid object_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object_iterator() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline simdjson_result operator*() noexcept; + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const object_iterator &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const object_iterator &) const noexcept; + // Checks for ']' and ',' + simdjson_inline object_iterator &operator++() noexcept; + +private: + /** + * The underlying JSON iterator. + * + * PERF NOTE: expected to be elided in favor of the parent document: this is set when the object + * is first used, and never changes afterwards. + */ + value_iterator iter{}; + + simdjson_inline object_iterator(const value_iterator &iter) noexcept; + friend struct simdjson_result; + friend class object; +}; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + // Checks for ']' and ',' + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/object_iterator.h */ +/* begin file include/simdjson/generic/ondemand/array.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class value; +class document; + +/** + * A forward-only JSON array. + */ +class array { +public: + /** + * Create a new invalid array. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline array() noexcept = default; + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an array is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the beginning of the array and checks whether the + * array is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result is_empty() & noexcept; + /** + * Reset the iterator so that we are pointing back at the + * beginning of the array. You should still consume values only once even if you + * can iterate through the array more than once. If you unescape a string + * within the array more than once, you have unsafe code. Note that rewinding + * an array means that you may need to reparse it anew: it is not a free + * operation. + * + * @returns true if the array contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/0/foo/a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an array + * instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the array and returns a string_view instance corresponding to the + * array as represented in JSON. It points inside the original document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + + /** + * Get the value at the given index. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; +protected: + /** + * Go to the end of the array, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + + /** + * Begin array iteration. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + */ + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + /** + * Begin array iteration from the root. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + * @error TAPE_ERROR if there is no closing ] at the end of the document. + */ + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + /** + * Begin array iteration. + * + * This version of the method should be called after the initial [ has been verified, and is + * intended for use by switch statements that check the type of a value. + * + * @param iter The iterator. Must be after the initial [. Will be *moved* into the resulting array. + */ + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + + /** + * Create an array at the given Internal array creation. Call array::start() or array::started() instead of this. + * + * @param iter The iterator. Must either be at the start of the first element with iter.is_alive() + * == true, or past the [] with is_alive() == false if the array is empty. Will be *moved* + * into the resulting array. + */ + simdjson_inline array(const value_iterator &iter) noexcept; + + /** + * Iterator marking current position. + * + * iter.is_alive() == false indicates iteration is complete. + */ + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; + friend struct simdjson_result; + friend class array_iterator; +}; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + inline simdjson_result count_elements() & noexcept; + inline simdjson_result is_empty() & noexcept; + inline simdjson_result reset() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/array.h */ +/* begin file include/simdjson/generic/ondemand/document.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class parser; +class array; +class object; +class value; +class raw_json_string; +class array_iterator; +class document_stream; + +/** + * A JSON document. It holds a json_iterator instance. + * + * Used by tokens to get text, and string buffer location. + * + * You must keep the document around during iteration. + */ +class document { +public: + /** + * Create a new invalid document. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline document() noexcept = default; + simdjson_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy + simdjson_inline document(document &&other) noexcept = default; + simdjson_inline document &operator=(const document &other) noexcept = delete; + simdjson_inline document &operator=(document &&other) noexcept = default; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() & noexcept; + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() & noexcept; + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + /** + * Cast this JSON value (inside string) to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Important: Calling get_string() twice on the same document is an error. + * + * @param Whether to allow a replacement character for unmatched surrogate pairs. + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + /** + * Cast this JSON value to a string. + * + * The string is not guaranteed to be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * + * Important: Calling get_wobbly_string() twice on the same document is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + /** + * Cast this JSON value to a value when the document is an object or an array. + * + * @returns A value if a JSON array or object cannot be found. + * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result get_value() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() & noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + /** @overload template simdjson_result get() & noexcept */ + template simdjson_inline simdjson_result get() && noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value + * + * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances. + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) & noexcept; + /** @overload template error_code get(T &out) & noexcept */ + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() & noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() & noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); + /** + * Cast this JSON value to a value. + * + * @returns A value value. + * @exception if a JSON value cannot be found + */ + simdjson_inline operator value() noexcept(false); +#endif + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) & noexcept; + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to + * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the document is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the document is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the document is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. If this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view may be the padded buffer. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** + * Reset the iterator inside the document instance so we are pointing back at the + * beginning of the document, as if it had just been created. It invalidates all + * values, objects and arrays that you have created so far (including unescaped strings). + */ + inline void rewind() noexcept; + /** + * Returns debugging information. + */ + inline std::string to_debug_string() noexcept; + /** + * Some unrecoverable error conditions may render the document instance unusable. + * The is_alive() method returns true when the document is still suitable. + */ + inline bool is_alive() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Returns true if this document has been fully parsed. + * If you have consumed the whole document and at_end() returns + * false, then there may be trailing content. + */ + inline bool at_end() const noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() automatically calls rewind between each call. Thus + * all values, objects and arrays that you have created so far (including unescaped strings) + * are invalidated. After calling at_pointer, you need to consume the result: string values + * should be stored in your own variables, arrays should be decoded and stored in your own array-like + * structures and so forth. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + * - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the document and returns a string_view instance corresponding to the + * document as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; +protected: + /** + * Consumes the document. + */ + simdjson_inline error_code consume() noexcept; + + simdjson_inline document(ondemand::json_iterator &&iter) noexcept; + simdjson_inline const uint8_t *text(uint32_t idx) const noexcept; + + simdjson_inline value_iterator resume_value_iterator() noexcept; + simdjson_inline value_iterator get_root_value_iterator() noexcept; + simdjson_inline simdjson_result start_or_resume_object() noexcept; + static simdjson_inline document start(ondemand::json_iterator &&iter) noexcept; + + // + // Fields + // + json_iterator iter{}; ///< Current position in the document + static constexpr depth_t DOCUMENT_DEPTH = 0; ///< document depth is always 0 + + friend class array_iterator; + friend class value; + friend class ondemand::parser; + friend class object; + friend class array; + friend class field; + friend class token; + friend class document_stream; + friend class document_reference; +}; + + +/** + * A document_reference is a thin wrapper around a document reference instance. + */ +class document_reference { +public: + simdjson_inline document_reference() noexcept; + simdjson_inline document_reference(document &d) noexcept; + simdjson_inline document_reference(const document_reference &other) noexcept = default; + simdjson_inline document_reference& operator=(const document_reference &other) noexcept = default; + simdjson_inline void rewind() noexcept; + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + + simdjson_inline simdjson_result is_null() noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + simdjson_inline operator document&() const noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator array() & noexcept(false); + simdjson_inline operator object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + simdjson_inline simdjson_result raw_json_token() noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +private: + document *doc{nullptr}; +}; +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() & noexcept; + template simdjson_inline simdjson_result get() && noexcept; + + template simdjson_inline error_code get(T &out) & noexcept; + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() & noexcept(false); + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool at_end() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + + + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference value, error_code error) noexcept; + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() & noexcept(false); + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document_reference::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/document.h */ +/* begin file include/simdjson/generic/ondemand/value.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class array; +class document; +class field; +class object; +class raw_json_string; + +/** + * An ephemeral JSON value returned during iteration. It is only valid for as long as you do + * not access more data in the JSON document. + */ +class value { +public: + /** + * Create a new invalid value. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline value() noexcept = default; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) noexcept; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() noexcept; + + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() noexcept; + + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + + /** + * Cast this JSON value (inside string) to a unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * Important: a value should be consumed once. Calling get_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + + + /** + * Cast this JSON value to a "wobbly" string. + * + * The string is may not be a valid UTF-8 string. + * See https://simonsapin.github.io/wtf-8/ + * + * Important: a value should be consumed once. Calling get_wobbly_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); +#endif + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + * + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * Performance hint: You should only call count_elements() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method on the object instance. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @return The type of JSON value (json_type::array, json_type::object, json_type::string, + * json_type::number, json_type::boolean, or json_type::null). + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the value is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the value is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the value is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * Performance note: if you call this function systematically + * before parsing a number, you may have fallen for a performance + * anti-pattern. + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + * + * Performance note: this is designed with performance in mind. When + * calling 'get_number()', you scan the number string only once, determining + * efficiently the type and storing it in an efficient manner. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. However, if this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view is guaranteed to be + * a non-space token. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline std::string_view raw_json_token() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + simdjson_inline simdjson_result current_location() noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. + * + * Calling at_pointer() on non-document instances (e.g., arrays and objects) is not + * standardized (by RFC 6901). We provide some experimental support for JSON pointers + * on non-document instances. Yet it is not the case when calling at_pointer on an array + * or an object instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + +protected: + /** + * Create a value. + */ + simdjson_inline value(const value_iterator &iter) noexcept; + + /** + * Skip this value, allowing iteration to continue. + */ + simdjson_inline void skip() noexcept; + + /** + * Start a value at the current position. + * + * (It should already be started; this is just a self-documentation method.) + */ + static simdjson_inline value start(const value_iterator &iter) noexcept; + + /** + * Resume a value. + */ + static simdjson_inline value resume(const value_iterator &iter) noexcept; + + /** + * Get the object, starting or resuming it as necessary + */ + simdjson_inline simdjson_result start_or_resume_object() noexcept; + + // simdjson_inline void log_value(const char *type) const noexcept; + // simdjson_inline void log_error(const char *message) const noexcept; + + value_iterator iter{}; + + friend class document; + friend class array_iterator; + friend class field; + friend class object; + friend struct simdjson_result; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result get_array() noexcept; + simdjson_inline simdjson_result get_object() noexcept; + + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() noexcept; + + template simdjson_inline error_code get(T &out) noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() noexcept(false); + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + */ + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + + /** @copydoc simdjson_inline std::string_view value::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** @copydoc simdjson_inline simdjson_result current_location() noexcept */ + simdjson_inline simdjson_result current_location() noexcept; + /** @copydoc simdjson_inline int32_t current_depth() const noexcept */ + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/value.h */ +/* begin file include/simdjson/generic/ondemand/field.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +/** + * A JSON field (key/value pair) in an object. + * + * Returned from object iteration. + * + * Extends from std::pair so you can use C++ algorithms that rely on pairs. + */ +class field : public std::pair { +public: + /** + * Create a new invalid field. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline field() noexcept; + + /** + * Get the key as a string_view (for higher speed, consider raw_key). + * We deliberately use a more cumbersome name (unescaped_key) to force users + * to think twice about using it. + * + * This consumes the key: once you have called unescaped_key(), you cannot + * call it again nor can you call key(). + */ + simdjson_inline simdjson_warn_unused simdjson_result unescaped_key(bool allow_replacement) noexcept; + /** + * Get the key as a raw_json_string. Can be used for direct comparison with + * an unescaped C string: e.g., key() == "test". + */ + simdjson_inline raw_json_string key() const noexcept; + /** + * Get the field value. + */ + simdjson_inline ondemand::value &value() & noexcept; + /** + * @overload ondemand::value &ondemand::value() & noexcept + */ + simdjson_inline ondemand::value value() && noexcept; + +protected: + simdjson_inline field(raw_json_string key, ondemand::value &&value) noexcept; + static simdjson_inline simdjson_result start(value_iterator &parent_iter) noexcept; + static simdjson_inline simdjson_result start(const value_iterator &parent_iter, raw_json_string key) noexcept; + friend struct simdjson_result; + friend class object_iterator; +}; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::field &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result unescaped_key(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result key() noexcept; + simdjson_inline simdjson_result value() noexcept; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/field.h */ +/* begin file include/simdjson/generic/ondemand/object.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +/** + * A forward-only JSON object field iterator. + */ +class object { +public: + /** + * Create a new invalid object. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a + * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an object + * instance: there is no rewind and no invalidation. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + + /** + * Reset the iterator so that we are pointing back at the + * beginning of the object. You should still consume values only once even if you + * can iterate through the object more than once. If you unescape a string within + * the object more than once, you have unsafe code. Note that rewinding an object + * means that you may need to reparse it anew: it is not a free operation. + * + * @returns true if the object contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * This method scans the beginning of the object and checks whether the + * object is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + inline simdjson_result is_empty() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Consumes the object and returns a string_view instance corresponding to the + * object as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + +protected: + /** + * Go to the end of the object, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + static simdjson_inline object resume(const value_iterator &iter) noexcept; + simdjson_inline object(const value_iterator &iter) noexcept; + + simdjson_warn_unused simdjson_inline error_code find_field_raw(const std::string_view key) noexcept; + + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + inline simdjson_result reset() noexcept; + inline simdjson_result is_empty() noexcept; + inline simdjson_result count_fields() & noexcept; + inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/object.h */ +/* begin file include/simdjson/generic/ondemand/parser.h */ + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class array; +class object; +class value; +class raw_json_string; +class document_stream; + +/** + * The default batch size for document_stream instances for this On Demand kernel. + * Note that different On Demand kernel may use a different DEFAULT_BATCH_SIZE value + * in the future. + */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; + +/** + * A JSON fragment iterator. + * + * This holds the actual iterator as well as the buffer for writing strings. + */ +class parser { +public: + /** + * Create a JSON parser. + * + * The new parser will have zero capacity. + */ + inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; + + inline parser(parser &&other) noexcept = default; + simdjson_inline parser(const parser &other) = delete; + simdjson_inline parser &operator=(const parser &other) = delete; + simdjson_inline parser &operator=(parser &&other) noexcept = default; + + /** Deallocate the JSON parser. */ + inline ~parser() noexcept = default; + + /** + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * document doc = parser.iterate(json); + * + * It is expected that the content is a valid UTF-8 file, containing a valid JSON document. + * Otherwise the iterate method may return an error. In particular, the whole input should be + * valid: we do not attempt to tolerate incorrect content either before or after a JSON + * document. + * + * ### IMPORTANT: Validate what you use + * + * Calling iterate on an invalid JSON document may not immediately trigger an error. The call to + * iterate does not parse and validate the whole document. + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * @param len The length of the JSON. + * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING). + * + * @return The document, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate(padded_string_view json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const char *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(std::string_view json, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const std::string &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(padded_string &&json) & noexcept = delete; + + /** + * @private + * + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * json_iterator doc = parser.iterate(json); + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * The ondemand::document instance holds the iterator. The document must remain in scope + * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * + * @return The iterator, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate_raw(padded_string_view json) & noexcept; + + + /** + * Parse a buffer containing many JSON documents. + * + * auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded; + * ondemand::parser parser; + * ondemand::document_stream docs = parser.iterate_many(json); + * for (auto & doc : docs) { + * std::cout << doc["foo"] << std::endl; + * } + * // Prints 1 2 3 + * + * No copy of the input buffer is made. + * + * The function is lazy: it may be that no more than one JSON document at a time is parsed. + * + * The caller is responsabile to ensure that the input string data remains unchanged and is + * not deleted during the loop. + * + * ### Format + * + * The buffer must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) + * + * documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. Documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with ASCII whitespace. + * + * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8). + * + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excessively small values may impact negatively the + * performance. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * ### Threads + * + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The concatenated JSON to parse. + * @param len The length of the concatenated JSON. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 10MB, which has been a reasonable sweet spot in our tests. + * @param allow_comma_separated (defaults on false) This allows a mode where the documents are + * separated by commas instead of whitespace. It comes with a performance + * penalty because the entire document is indexed at once (and the document must be + * less than 4 GB), and there is no multithreading. In this mode, the batch_size parameter + * is effectively ignored, as it is set to at least the document size. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const std::string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const std::string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const padded_string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const padded_string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_result iterate_many(const char *buf, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept = delete; + + /** The capacity of this parser (the largest document it can process). */ + simdjson_inline size_t capacity() const noexcept; + /** The maximum capacity of this parser (the largest document it is allowed to process). */ + simdjson_inline size_t max_capacity() const noexcept; + simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; + /** + * The maximum depth of this parser (the most deeply nested objects and arrays it can process). + * This parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * The max_depth parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused error_code allocate(size_t capacity, size_t max_depth=DEFAULT_MAX_DEPTH) noexcept; + + #ifdef SIMDJSON_THREADS_ENABLED + /** + * The parser instance can use threads when they are available to speed up some + * operations. It is enabled by default. Changing this attribute will change the + * behavior of the parser for future operations. + */ + bool threaded{true}; + #endif + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result must be valid UTF-8. + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @param allow_replacement Whether we allow a replacement if the input string contains unmatched surrogate pairs. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement = false) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result may not be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept; + +private: + /** @private [for benchmarking access] The implementation to use */ + std::unique_ptr implementation{}; + size_t _capacity{0}; + size_t _max_capacity; + size_t _max_depth{DEFAULT_MAX_DEPTH}; + std::unique_ptr string_buf{}; +#if SIMDJSON_DEVELOPMENT_CHECKS + std::unique_ptr start_positions{}; +#endif + + friend class json_iterator; + friend class document_stream; +}; + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::parser &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/parser.h */ +/* begin file include/simdjson/generic/ondemand/document_stream.h */ +#ifdef SIMDJSON_THREADS_ENABLED +#include +#include +#include +#endif + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +class parser; +class json_iterator; +class document; + +#ifdef SIMDJSON_THREADS_ENABLED +/** @private Custom worker class **/ +struct stage1_worker { + stage1_worker() noexcept = default; + stage1_worker(const stage1_worker&) = delete; + stage1_worker(stage1_worker&&) = delete; + stage1_worker operator=(const stage1_worker&) = delete; + ~stage1_worker(); + /** + * We only start the thread when it is needed, not at object construction, this may throw. + * You should only call this once. + **/ + void start_thread(); + /** + * Start a stage 1 job. You should first call 'run', then 'finish'. + * You must call start_thread once before. + */ + void run(document_stream * ds, parser * stage1, size_t next_batch_start); + /** Wait for the run to finish (blocking). You should first call 'run', then 'finish'. **/ + void finish(); + +private: + + /** + * Normally, we would never stop the thread. But we do in the destructor. + * This function is only safe assuming that you are not waiting for results. You + * should have called run, then finish, and be done. + **/ + void stop_thread(); + + std::thread thread{}; + /** These three variables define the work done by the thread. **/ + ondemand::parser * stage1_thread_parser{}; + size_t _next_batch_start{}; + document_stream * owner{}; + /** + * We have two state variables. This could be streamlined to one variable in the future but + * we use two for clarity. + */ + bool has_work{false}; + bool can_work{true}; + + /** + * We lock using a mutex. + */ + std::mutex locking_mutex{}; + std::condition_variable cond_var{}; + + friend class document_stream; +}; +#endif // SIMDJSON_THREADS_ENABLED + +/** + * A forward-only stream of documents. + * + * Produced by parser::iterate_many. + * + */ +class document_stream { +public: + /** + * Construct an uninitialized document_stream. + * + * ```c++ + * document_stream docs; + * auto error = parser.iterate_many(json).get(docs); + * ``` + */ + simdjson_inline document_stream() noexcept; + /** Move one document_stream to another. */ + simdjson_inline document_stream(document_stream &&other) noexcept = default; + /** Move one document_stream to another. */ + simdjson_inline document_stream &operator=(document_stream &&other) noexcept = default; + + simdjson_inline ~document_stream() noexcept; + + /** + * Returns the input size in bytes. + */ + inline size_t size_in_bytes() const noexcept; + + /** + * After iterating through the stream, this method + * returns the number of bytes that were not parsed at the end + * of the stream. If truncated_bytes() differs from zero, + * then the input was truncated maybe because incomplete JSON + * documents were found at the end of the stream. You + * may need to process the bytes in the interval [size_in_bytes()-truncated_bytes(), size_in_bytes()). + * + * You should only call truncated_bytes() after streaming through all + * documents, like so: + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto & doc : stream) { + * // do something with doc + * } + * size_t truncated = stream.truncated_bytes(); + * + */ + inline size_t truncated_bytes() const noexcept; + + class iterator { + public: + using value_type = simdjson_result; + using reference = value_type; + + using difference_type = std::ptrdiff_t; + + using iterator_category = std::input_iterator_tag; + + /** + * Default constructor. + */ + simdjson_inline iterator() noexcept; + /** + * Get the current document (or error). + */ + simdjson_inline simdjson_result operator*() noexcept; + /** + * Advance to the next document (prefix). + */ + inline iterator& operator++() noexcept; + /** + * Check if we're at the end yet. + * @param other the end iterator to compare to. + */ + simdjson_inline bool operator!=(const iterator &other) const noexcept; + /** + * @private + * + * Gives the current index in the input document in bytes. + * + * document_stream stream = parser.parse_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * auto doc = *i; + * size_t index = i.current_index(); + * } + * + * This function (current_index()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + */ + simdjson_inline size_t current_index() const noexcept; + + /** + * @private + * + * Gives a view of the current document at the current position. + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * std::string_view v = i.source(); + * } + * + * The returned string_view instance is simply a map to the (unparsed) + * source string: it may thus include white-space characters and all manner + * of padding. + * + * This function (source()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + * + */ + simdjson_inline std::string_view source() const noexcept; + + /** + * Returns error of the stream (if any). + */ + inline error_code error() const noexcept; + + private: + simdjson_inline iterator(document_stream *s, bool finished) noexcept; + /** The document_stream we're iterating through. */ + document_stream* stream; + /** Whether we're finished or not. */ + bool finished; + + friend class document; + friend class document_stream; + friend class json_iterator; + }; + + /** + * Start iterating the documents in the stream. + */ + simdjson_inline iterator begin() noexcept; + /** + * The end of the stream, for iterator comparison purposes. + */ + simdjson_inline iterator end() noexcept; + +private: + + document_stream &operator=(const document_stream &) = delete; // Disallow copying + document_stream(const document_stream &other) = delete; // Disallow copying + + /** + * Construct a document_stream. Does not allocate or parse anything until the iterator is + * used. + * + * @param parser is a reference to the parser instance used to generate this document_stream + * @param buf is the raw byte buffer we need to process + * @param len is the length of the raw byte buffer in bytes + * @param batch_size is the size of the windows (must be strictly greater or equal to the largest JSON document) + */ + simdjson_inline document_stream( + ondemand::parser &parser, + const uint8_t *buf, + size_t len, + size_t batch_size, + bool allow_comma_separated + ) noexcept; + + /** + * Parse the first document in the buffer. Used by begin(), to handle allocation and + * initialization. + */ + inline void start() noexcept; + + /** + * Parse the next document found in the buffer previously given to document_stream. + * + * The content should be a valid JSON document encoded as UTF-8. If there is a + * UTF-8 BOM, the caller is responsible for omitting it, UTF-8 BOM are + * discouraged. + * + * You do NOT need to pre-allocate a parser. This function takes care of + * pre-allocating a capacity defined by the batch_size defined when creating the + * document_stream object. + * + * The function returns simdjson::EMPTY if there is no more data to be parsed. + * + * The function returns simdjson::SUCCESS (as integer = 0) in case of success + * and indicates that the buffer has successfully been parsed to the end. + * Every document it contained has been parsed without error. + * + * The function returns an error code from simdjson/simdjson.h in case of failure + * such as simdjson::CAPACITY, simdjson::MEMALLOC, simdjson::DEPTH_ERROR and so forth; + * the simdjson::error_message function converts these error codes into a string). + * + * You can also check validity by calling parser.is_valid(). The same parser can + * and should be reused for the other documents in the buffer. + */ + inline void next() noexcept; + + /** Move the json_iterator of the document to the location of the next document in the stream. */ + inline void next_document() noexcept; + + /** Get the next document index. */ + inline size_t next_batch_start() const noexcept; + + /** Pass the next batch through stage 1 with the given parser. */ + inline error_code run_stage1(ondemand::parser &p, size_t batch_start) noexcept; + + // Fields + ondemand::parser *parser; + const uint8_t *buf; + size_t len; + size_t batch_size; + bool allow_comma_separated; + /** + * We are going to use just one document instance. The document owns + * the json_iterator. It implies that we only ever pass a reference + * to the document to the users. + */ + document doc{}; + /** The error (or lack thereof) from the current document. */ + error_code error; + size_t batch_start{0}; + size_t doc_index{}; + + #ifdef SIMDJSON_THREADS_ENABLED + /** Indicates whether we use threads. Note that this needs to be a constant during the execution of the parsing. */ + bool use_thread; + + inline void load_from_stage1_thread() noexcept; + + /** Start a thread to run stage 1 on the next batch. */ + inline void start_stage1_thread() noexcept; + + /** Wait for the stage 1 thread to finish and capture the results. */ + inline void finish_stage1_thread() noexcept; + + /** The error returned from the stage 1 thread. */ + error_code stage1_thread_error{UNINITIALIZED}; + /** The thread used to run stage 1 against the next batch in the background. */ + std::unique_ptr worker{new(std::nothrow) stage1_worker()}; + /** + * The parser used to run stage 1 in the background. Will be swapped + * with the regular parser when finished. + */ + ondemand::parser stage1_thread_parser{}; + + friend struct stage1_worker; + #endif // SIMDJSON_THREADS_ENABLED + + friend class parser; + friend class document; + friend class json_iterator; + friend struct simdjson_result; + friend struct internal::simdjson_result_base; +}; // document_stream + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { +template<> +struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_stream &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/document_stream.h */ +/* begin file include/simdjson/generic/ondemand/serialization.h */ + +namespace simdjson { +/** + * Create a string-view instance out of a document instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& x) noexcept; +/** + * Create a string-view instance out of a value instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. The value must + * not have been accessed previously. It does not + * validate the content. + */ +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value& x) noexcept; +/** + * Create a string-view instance out of an object instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object& x) noexcept; +/** + * Create a string-view instance out of an array instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array& x) noexcept; +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +} // namespace simdjson + +/** + * We want to support argument-dependent lookup (ADL). + * Hence we should define operator<< in the namespace + * where the argument (here value, object, etc.) resides. + * Credit: @madhur4127 + * See https://github.com/simdjson/simdjson/issues/1768 + */ +namespace simdjson { namespace SIMDJSON_BUILTIN_IMPLEMENTATION { namespace ondemand { + +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The element. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value x); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The object. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +}}} // namespace simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand +/* end file include/simdjson/generic/ondemand/serialization.h */ +/* end file include/simdjson/generic/ondemand.h */ + +// Inline definitions +/* begin file include/simdjson/generic/implementation_simdjson_result_base-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson +/* end file include/simdjson/generic/implementation_simdjson_result_base-inl.h */ +/* begin file include/simdjson/generic/ondemand-inl.h */ +/* begin file include/simdjson/generic/ondemand/json_type-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept { + switch (type) { + case json_type::array: out << "array"; break; + case json_type::object: out << "object"; break; + case json_type::number: out << "number"; break; + case json_type::string: out << "string"; break; + case json_type::boolean: out << "boolean"; break; + case json_type::null: out << "null"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false) { + return out << type.value(); +} +#endif + + + +simdjson_inline number_type number::get_number_type() const noexcept { + return type; +} + +simdjson_inline bool number::is_uint64() const noexcept { + return get_number_type() == number_type::unsigned_integer; +} + +simdjson_inline uint64_t number::get_uint64() const noexcept { + return payload.unsigned_integer; +} + +simdjson_inline number::operator uint64_t() const noexcept { + return get_uint64(); +} + + +simdjson_inline bool number::is_int64() const noexcept { + return get_number_type() == number_type::signed_integer; +} + +simdjson_inline int64_t number::get_int64() const noexcept { + return payload.signed_integer; +} + +simdjson_inline number::operator int64_t() const noexcept { + return get_int64(); +} + +simdjson_inline bool number::is_double() const noexcept { + return get_number_type() == number_type::floating_point_number; +} + +simdjson_inline double number::get_double() const noexcept { + return payload.floating_point_number; +} + +simdjson_inline number::operator double() const noexcept { + return get_double(); +} + +simdjson_inline double number::as_double() const noexcept { + if(is_double()) { + return payload.floating_point_number; + } + if(is_int64()) { + return double(payload.signed_integer); + } + return double(payload.unsigned_integer); +} + +simdjson_inline void number::append_s64(int64_t value) noexcept { + payload.signed_integer = value; + type = number_type::signed_integer; +} + +simdjson_inline void number::append_u64(uint64_t value) noexcept { + payload.unsigned_integer = value; + type = number_type::unsigned_integer; +} + +simdjson_inline void number::append_double(double value) noexcept { + payload.floating_point_number = value; + type = number_type::floating_point_number; +} + +simdjson_inline void number::skip_double() noexcept { + type = number_type::floating_point_number; +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_type &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/json_type-inl.h */ +/* begin file include/simdjson/generic/ondemand/logger-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { +namespace logger { + +static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +static constexpr const int LOG_EVENT_LEN = 20; +static constexpr const int LOG_BUFFER_LEN = 30; +static constexpr const int LOG_SMALL_BUFFER_LEN = 10; +static int log_depth = 0; // Not threadsafe. Log only. + +// Helper to turn unprintable or newline characters into spaces +static inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } +} + +inline void log_event(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta); +} + +inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "", type, detail); +} +inline void log_value(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta); +} + +inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "+", type, detail); + if (LOG_ENABLED) { log_depth++; } +} +inline void log_start_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_line(iter, "+", type, "", delta, depth_delta); + if (LOG_ENABLED) { log_depth++; } +} + +inline void log_end_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + if (LOG_ENABLED) { log_depth--; } + log_line(iter, "-", type, "", delta, depth_delta); +} + +inline void log_error(const json_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_line(iter, "ERROR: ", error, detail, delta, depth_delta); +} +inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail) noexcept { + log_line(iter, index, depth, "ERROR: ", error, detail); +} + +inline void log_event(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_event(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_value(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_value(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_start_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_start_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_end_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_end_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_error(const value_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_error(iter.json_iter(), error, detail, delta, depth_delta); +} + +inline void log_headers() noexcept { + if (LOG_ENABLED) { + // Technically a static variable is not thread-safe, but if you are using threads + // and logging... well... + static bool displayed_hint{false}; + log_depth = 0; + printf("\n"); + if(!displayed_hint) { + // We only print this helpful header once. + printf("# Logging provides the depth and position of the iterator user-visible steps:\n"); + printf("# +array says 'this is where we were when we discovered the start array'\n"); + printf("# -array says 'this is where we were when we ended the array'\n"); + printf("# skip says 'this is a structural or value I am skipping'\n"); + printf("# +/-skip says 'this is a start/end array or object I am skipping'\n"); + printf("#\n"); + printf("# The indentation of the terms (array, string,...) indicates the depth,\n"); + printf("# in addition to the depth being displayed.\n"); + printf("#\n"); + printf("# Every token in the document has a single depth determined by the tokens before it,\n"); + printf("# and is not affected by what the token actually is.\n"); + printf("#\n"); + printf("# Not all structural elements are presented as tokens in the logs.\n"); + printf("#\n"); + printf("# We never give control to the user within an empty array or an empty object.\n"); + printf("#\n"); + printf("# Inside an array, having a depth greater than the array's depth means that\n"); + printf("# we are pointing inside a value.\n"); + printf("# Having a depth equal to the array means that we are pointing right before a value.\n"); + printf("# Having a depth smaller than the array means that we have moved beyond the array.\n"); + displayed_hint = true; + } + printf("\n"); + printf("| %-*s ", LOG_EVENT_LEN, "Event"); + printf("| %-*s ", LOG_BUFFER_LEN, "Buffer"); + printf("| %-*s ", LOG_SMALL_BUFFER_LEN, "Next"); + // printf("| %-*s ", 5, "Next#"); + printf("| %-*s ", 5, "Depth"); + printf("| Detail "); + printf("|\n"); + + printf("|%.*s", LOG_EVENT_LEN+2, DASHES); + printf("|%.*s", LOG_BUFFER_LEN+2, DASHES); + printf("|%.*s", LOG_SMALL_BUFFER_LEN+2, DASHES); + // printf("|%.*s", 5+2, DASHES); + printf("|%.*s", 5+2, DASHES); + printf("|--------"); + printf("|\n"); + fflush(stdout); + } +} + +inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail); +} +inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept { + if (LOG_ENABLED) { + const int indent = depth*2; + const auto buf = iter.token.buf; + printf("| %*s%s%-*s ", + indent, "", + title_prefix, + LOG_EVENT_LEN - indent - int(strlen(title_prefix)), title + ); + { + // Print the current structural. + printf("| "); + // Before we begin, the index might point right before the document. + // This could be unsafe, see https://github.com/simdjson/simdjson/discussions/1938 + if(index < iter._root) { + printf("%*s", LOG_BUFFER_LEN, ""); + } else { + auto current_structural = &buf[*index]; + for (int i=0;i(buf); } + + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(std::string_view target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;pos < target.size() && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;pos < target.size();pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(const char* target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;target[pos] && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;target[pos];pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept { + // If we are going to call memcmp, then we must know something about the length of the raw_json_string. + return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); +} + +simdjson_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + if(target.size() <= SIMDJSON_PADDING) { + return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); + } + const char * r{raw()}; + size_t pos{0}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(std::string_view target) const noexcept { + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(const char * target) const noexcept { + // Assumptions: 'target' does not contain unescaped quote characters, is null terminated and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(const char* target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept { + return a.unsafe_is_equal(c); +} + +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept { + return a == c; +} + +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept { + return !(a == c); +} + +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept { + return !(a == c); +} + + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape(json_iterator &iter, bool allow_replacement) const noexcept { + return iter.unescape(*this, allow_replacement); +} + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape_wobbly(json_iterator &iter) const noexcept { + return iter.unescape_wobbly(*this); +} + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &out, const raw_json_string &str) noexcept { + bool in_escape = false; + const char *s = str.raw(); + while (true) { + switch (*s) { + case '\\': in_escape = !in_escape; break; + case '"': if (in_escape) { in_escape = false; } else { return out; } break; + default: if (in_escape) { in_escape = false; } + } + out << *s; + s++; + } +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::raw() const noexcept { + if (error()) { return error(); } + return first.raw(); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &iter, bool allow_replacement) const noexcept { + if (error()) { return error(); } + return first.unescape(iter, allow_replacement); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape_wobbly(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &iter) const noexcept { + if (error()) { return error(); } + return first.unescape_wobbly(iter); +} +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/raw_json_string-inl.h */ +/* begin file include/simdjson/generic/ondemand/token_iterator-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline token_iterator::token_iterator( + const uint8_t *_buf, + token_position position +) noexcept : buf{_buf}, _position{position} +{ +} + +simdjson_inline uint32_t token_iterator::current_offset() const noexcept { + return *(_position); +} + + +simdjson_inline const uint8_t *token_iterator::return_current_and_advance() noexcept { + return &buf[*(_position++)]; +} + +simdjson_inline const uint8_t *token_iterator::peek(token_position position) const noexcept { + return &buf[*position]; +} +simdjson_inline uint32_t token_iterator::peek_index(token_position position) const noexcept { + return *position; +} +simdjson_inline uint32_t token_iterator::peek_length(token_position position) const noexcept { + return *(position+1) - *position; +} + +simdjson_inline const uint8_t *token_iterator::peek(int32_t delta) const noexcept { + return &buf[*(_position+delta)]; +} +simdjson_inline uint32_t token_iterator::peek_index(int32_t delta) const noexcept { + return *(_position+delta); +} +simdjson_inline uint32_t token_iterator::peek_length(int32_t delta) const noexcept { + return *(_position+delta+1) - *(_position+delta); +} + +simdjson_inline token_position token_iterator::position() const noexcept { + return _position; +} +simdjson_inline void token_iterator::set_position(token_position target_position) noexcept { + _position = target_position; +} + +simdjson_inline bool token_iterator::operator==(const token_iterator &other) const noexcept { + return _position == other._position; +} +simdjson_inline bool token_iterator::operator!=(const token_iterator &other) const noexcept { + return _position != other._position; +} +simdjson_inline bool token_iterator::operator>(const token_iterator &other) const noexcept { + return _position > other._position; +} +simdjson_inline bool token_iterator::operator>=(const token_iterator &other) const noexcept { + return _position >= other._position; +} +simdjson_inline bool token_iterator::operator<(const token_iterator &other) const noexcept { + return _position < other._position; +} +simdjson_inline bool token_iterator::operator<=(const token_iterator &other) const noexcept { + return _position <= other._position; +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::token_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/token_iterator-inl.h */ +/* begin file include/simdjson/generic/ondemand/json_iterator-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline json_iterator::json_iterator(json_iterator &&other) noexcept + : token(std::forward(other.token)), + parser{other.parser}, + _string_buf_loc{other._string_buf_loc}, + error{other.error}, + _depth{other._depth}, + _root{other._root}, + _streaming{other._streaming} +{ + other.parser = nullptr; +} +simdjson_inline json_iterator &json_iterator::operator=(json_iterator &&other) noexcept { + token = other.token; + parser = other.parser; + _string_buf_loc = other._string_buf_loc; + error = other.error; + _depth = other._depth; + _root = other._root; + _streaming = other._streaming; + other.parser = nullptr; + return *this; +} + +simdjson_inline json_iterator::json_iterator(const uint8_t *buf, ondemand::parser *_parser) noexcept + : token(buf, &_parser->implementation->structural_indexes[0]), + parser{_parser}, + _string_buf_loc{parser->string_buf.get()}, + _depth{1}, + _root{parser->implementation->structural_indexes.get()}, + _streaming{false} + +{ + logger::log_headers(); +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif +} + +inline void json_iterator::rewind() noexcept { + token.set_position( root_position() ); + logger::log_headers(); // We start again + _string_buf_loc = parser->string_buf.get(); + _depth = 1; +} + +inline bool json_iterator::balanced() const noexcept { + token_iterator ti(token); + int32_t count{0}; + ti.set_position( root_position() ); + while(ti.peek() <= peek_last()) { + switch (*ti.return_current_and_advance()) + { + case '[': case '{': + count++; + break; + case ']': case '}': + count--; + break; + default: + break; + } + } + return count == 0; +} + + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and parent_depth, which is a desired effect. The warning does not show up if the +// skip_child() function is not marked inline). +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept { + if (depth() <= parent_depth) { return SUCCESS; } + switch (*return_current_and_advance()) { + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + + // For the first open array/object in a value, we've already incremented depth, so keep it the same + // We never stop at colon, but if we did, it wouldn't affect depth + case '[': case '{': case ':': + logger::log_start_value(*this, "skip"); + break; + // If there is a comma, we have just finished a value in an array/object, and need to get back in + case ',': + logger::log_value(*this, "skip"); + break; + // ] or } means we just finished a value and need to jump out of the array/object + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } +#if SIMDJSON_CHECK_EOF + // If there are no more tokens, the parent is incomplete. + if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + break; + case '"': + if(*peek() == ':') { + // We are at a key!!! + // This might happen if you just started an object and you skip it immediately. + // Performance note: it would be nice to get rid of this check as it is somewhat + // expensive. + // https://github.com/simdjson/simdjson/issues/1742 + logger::log_value(*this, "key"); + return_current_and_advance(); // eat up the ':' + break; // important!!! + } + simdjson_fallthrough; + // Anything else must be a scalar value + default: + // For the first scalar, we will have incremented depth already, so we decrement it here. + logger::log_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + } + + // Now that we've considered the first value, we only increment/decrement for arrays/objects + while (position() < end_position()) { + switch (*return_current_and_advance()) { + case '[': case '{': + logger::log_start_value(*this, "skip"); + _depth++; + break; + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + default: + logger::log_value(*this, "skip", ""); + break; + } + } + + return report_error(TAPE_ERROR, "not enough close braces"); +} + +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool json_iterator::at_root() const noexcept { + return position() == root_position(); +} + +simdjson_inline bool json_iterator::is_single_token() const noexcept { + return parser->implementation->n_structural_indexes == 1; +} + +simdjson_inline bool json_iterator::streaming() const noexcept { + return _streaming; +} + +simdjson_inline token_position json_iterator::root_position() const noexcept { + return _root; +} + +simdjson_inline void json_iterator::assert_at_document_depth() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +} + +simdjson_inline void json_iterator::assert_at_root() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + // Under Visual Studio, the next SIMDJSON_ASSUME fails with: the argument + // has side effects that will be discarded. + SIMDJSON_ASSUME( token.position() == _root ); +#endif +} + +simdjson_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept { + assert_valid_position(token._position + required_tokens - 1); +} + +simdjson_inline void json_iterator::assert_valid_position(token_position position) const noexcept { +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME( position >= &parser->implementation->structural_indexes[0] ); + SIMDJSON_ASSUME( position < &parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] ); +#endif +} + +simdjson_inline bool json_iterator::at_end() const noexcept { + return position() == end_position(); +} +simdjson_inline token_position json_iterator::end_position() const noexcept { + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + return &parser->implementation->structural_indexes[n_structural_indexes]; +} + +inline std::string json_iterator::to_string() const noexcept { + if( !is_alive() ) { return "dead json_iterator instance"; } + const char * current_structural = reinterpret_cast(token.peek()); + return std::string("json_iterator [ depth : ") + std::to_string(_depth) + + std::string(", structural : '") + std::string(current_structural,1) + + std::string("', offset : ") + std::to_string(token.current_offset()) + + std::string("', error : ") + error_message(error) + + std::string(" ]"); +} + +inline simdjson_result json_iterator::current_location() const noexcept { + if (!is_alive()) { // Unrecoverable error + if (!at_root()) { + return reinterpret_cast(token.peek(-1)); + } else { + return reinterpret_cast(token.peek()); + } + } + if (at_end()) { + return OUT_OF_BOUNDS; + } + return reinterpret_cast(token.peek()); +} + +simdjson_inline bool json_iterator::is_alive() const noexcept { + return parser; +} + +simdjson_inline void json_iterator::abandon() noexcept { + parser = nullptr; + _depth = 0; +} + +simdjson_inline const uint8_t *json_iterator::return_current_and_advance() noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif // SIMDJSON_CHECK_EOF + return token.return_current_and_advance(); +} + +simdjson_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept { + // deliberately done without safety guard: + return token.peek(0); +} + +simdjson_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // SIMDJSON_CHECK_EOF + return token.peek(delta); +} + +simdjson_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // #if SIMDJSON_CHECK_EOF + return token.peek_length(delta); +} + +simdjson_inline const uint8_t *json_iterator::peek(token_position position) const noexcept { + // todo: currently we require end-of-string buffering, but the following + // assert_valid_position should be turned on if/when we lift that condition. + // assert_valid_position(position); + // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF + // is ON by default, we have no choice but to disable it for real with a comment. + return token.peek(position); +} + +simdjson_inline uint32_t json_iterator::peek_length(token_position position) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_valid_position(position); +#endif // SIMDJSON_CHECK_EOF + return token.peek_length(position); +} + +simdjson_inline token_position json_iterator::last_position() const noexcept { + // The following line fails under some compilers... + // SIMDJSON_ASSUME(parser->implementation->n_structural_indexes > 0); + // since it has side-effects. + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + SIMDJSON_ASSUME(n_structural_indexes > 0); + return &parser->implementation->structural_indexes[n_structural_indexes - 1]; +} +simdjson_inline const uint8_t *json_iterator::peek_last() const noexcept { + return token.peek(last_position()); +} + +simdjson_inline void json_iterator::ascend_to(depth_t parent_depth) noexcept { + SIMDJSON_ASSUME(parent_depth >= 0 && parent_depth < INT32_MAX - 1); + SIMDJSON_ASSUME(_depth == parent_depth + 1); + _depth = parent_depth; +} + +simdjson_inline void json_iterator::descend_to(depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); + _depth = child_depth; +} + +simdjson_inline depth_t json_iterator::depth() const noexcept { + return _depth; +} + +simdjson_inline uint8_t *&json_iterator::string_buf_loc() noexcept { + return _string_buf_loc; +} + +simdjson_inline error_code json_iterator::report_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error != SUCCESS && _error != UNINITIALIZED && _error != INCORRECT_TYPE && _error != NO_SUCH_FIELD); + logger::log_error(*this, message); + error = _error; + return error; +} + +simdjson_inline token_position json_iterator::position() const noexcept { + return token.position(); +} + +simdjson_inline simdjson_result json_iterator::unescape(raw_json_string in, bool allow_replacement) noexcept { + return parser->unescape(in, _string_buf_loc, allow_replacement); +} + +simdjson_inline simdjson_result json_iterator::unescape_wobbly(raw_json_string in) noexcept { + return parser->unescape_wobbly(in, _string_buf_loc); +} + +simdjson_inline void json_iterator::reenter_child(token_position position, depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); +#if SIMDJSON_DEVELOPMENT_CHECKS +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME(size_t(child_depth) < parser->max_depth()); + SIMDJSON_ASSUME(position >= parser->start_positions[child_depth]); +#endif +#endif + token.set_position(position); + _depth = child_depth; +} + +simdjson_inline error_code json_iterator::consume_character(char c) noexcept { + if (*peek() == c) { + return_current_and_advance(); + return SUCCESS; + } + return TAPE_ERROR; +} + +#if SIMDJSON_DEVELOPMENT_CHECKS + +simdjson_inline token_position json_iterator::start_position(depth_t depth) const noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + return size_t(depth) < parser->max_depth() ? parser->start_positions[depth] : 0; +} + +simdjson_inline void json_iterator::set_start_position(depth_t depth, token_position position) noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + if(size_t(depth) < parser->max_depth()) { parser->start_positions[depth] = position; } +} + +#endif + + +simdjson_inline error_code json_iterator::optional_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error == INCORRECT_TYPE || _error == NO_SUCH_FIELD); + logger::log_error(*this, message); + return _error; +} + + +simdjson_warn_unused simdjson_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept { + // This function is not expected to be called in performance-sensitive settings. + // Let us guard against silly cases: + if((N < max_len) || (N == 0)) { return false; } + // Copy to the buffer. + std::memcpy(tmpbuf, json, max_len); + if(N > max_len) { // We pad whatever remains with ' '. + std::memset(tmpbuf + max_len, ' ', N - max_len); + } + return true; +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/json_iterator-inl.h */ +/* begin file include/simdjson/generic/ondemand/value_iterator-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline value_iterator::value_iterator( + json_iterator *json_iter, + depth_t depth, + token_position start_position +) noexcept : _json_iter{json_iter}, _depth{depth}, _start_position{start_position} +{ +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_root_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_object() noexcept { + assert_at_container_start(); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + if (*_json_iter->peek() == '}') { + logger::log_value(*_json_iter, "empty object"); + _json_iter->return_current_and_advance(); + end_container(); + return false; + } + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_object() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // object: e.g., `{"a":2} foo }`. Users concerned with garbage content should + // call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != '}') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing } at end"); + } + // If the last character is } *and* the first gibberish character is also '}' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == '}') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed object. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_object() noexcept { + auto error = check_root_object(); + if(error) { return error; } + return started_object(); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::end_container() noexcept { +#if SIMDJSON_CHECK_EOF + if (depth() > 1 && at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing parent ] or }"); } + // if (depth() <= 1 && !at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + _json_iter->ascend_to(depth()-1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_field() noexcept { + assert_at_next(); + + // It's illegal to call this unless there are more tokens: anything that ends in } or ] is + // obligated to verify there are more tokens if they are not the top level. + switch (*_json_iter->return_current_and_advance()) { + case '}': + logger::log_end_value(*_json_iter, "object"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between object fields"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_raw(const std::string_view key) noexcept { + error_code error; + bool has_value; + // + // Initially, the object can be in one of a few different places: + // + // 1. The start of the object, at the first field: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + if (at_first_field()) { + has_value = true; + + // + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + return false; + + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + if ((error = skip_child() )) { abandon(); return error; } + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + while (has_value) { + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + //if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); // Skip the value entirely + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + + // If the loop ended, we're out of fields to look at. + return false; +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_unordered_raw(const std::string_view key) noexcept { + /** + * When find_field_unordered_raw is called, we can either be pointing at the + * first key, pointing outside (at the closing brace) or if a key was matched + * we can be either pointing right afterthe ':' right before the value (that we need skip), + * or we may have consumed the value and we might be at a comma or at the + * final brace (ready for a call to has_next_field()). + */ + error_code error; + bool has_value; + + // First, we scan from that point to the end. + // If we don't find a match, we may loop back around, and scan from the beginning to that point. + token_position search_start = _json_iter->position(); + + // We want to know whether we need to go back to the beginning. + bool at_first = at_first_field(); + /////////////// + // Initially, the object can be in one of a few different places: + // + // 1. At the first key: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + // + if (at_first) { + has_value = true; + + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { + +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + SIMDJSON_TRY(reset_object().get(has_value)); + at_first = true; + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + // If someone queried a key but they not did access the value, then we are left pointing + // at the ':' and we need to move forward through the value... If the value was + // processed then skip_child() does not move the iterator (but may adjust the depth). + if ((error = skip_child() )) { abandon(); return error; } + search_start = _json_iter->position(); + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + + // After initial processing, we will be in one of two states: + // + // ``` + // // At the beginning of a field + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // At the end of the object + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // ``` + // + // Next, we find a match starting from the current position. + while (has_value) { + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + // Performance note: it maybe wasteful to rewind to the beginning when there might be + // no other query following. Indeed, it would require reskipping the whole object. + // Instead, you can just stay where you are. If there is a new query, there is always time + // to rewind. + if(at_first) { return false; } + + // If we reach the end without finding a match, search the rest of the fields starting at the + // beginning of the object. + // (We have already run through the object before, so we've already validated its structure. We + // don't check errors in this bit.) + SIMDJSON_TRY(reset_object().get(has_value)); + while (true) { + SIMDJSON_ASSUME(has_value); // we should reach search_start before ever reaching the end of the object + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + error = field_key().get(actual_key); SIMDJSON_ASSUME(!error); + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + error = field_value(); SIMDJSON_ASSUME(!error); + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // If we reached the end of the key-value pair we started from, then we know + // that the key is not there so we return false. We are either right before + // the next comma or the final brace. + if(_json_iter->position() == search_start) { return false; } + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + error = has_next_field().get(has_value); SIMDJSON_ASSUME(!error); + // If we make the mistake of exiting here, then we could be left pointing at a key + // in the middle of an object. That's not an allowable state. + } + // If the loop ended, we're out of fields to look at. The program should + // never reach this point. + return false; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::field_key() noexcept { + assert_at_next(); + + const uint8_t *key = _json_iter->return_current_and_advance(); + if (*(key++) != '"') { return report_error(TAPE_ERROR, "Object key is not a string"); } + return raw_json_string(key); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::field_value() noexcept { + assert_at_next(); + + if (*_json_iter->return_current_and_advance() != ':') { return report_error(TAPE_ERROR, "Missing colon in object field"); } + _json_iter->descend_to(depth()+1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_root_array(); +} + +inline std::string value_iterator::to_string() const noexcept { + auto answer = std::string("value_iterator [ depth : ") + std::to_string(_depth) + std::string(", "); + if(_json_iter != nullptr) { answer += _json_iter->to_string(); } + answer += std::string(" ]"); + return answer; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_array() noexcept { + assert_at_container_start(); + if (*_json_iter->peek() == ']') { + logger::log_value(*_json_iter, "empty array"); + _json_iter->return_current_and_advance(); + SIMDJSON_TRY( end_container() ); + return false; + } + _json_iter->descend_to(depth()+1); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_array() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // array: e.g., `[1, 2] foo]`. Users concerned with garbage content should + // also call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != ']') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing ] at end"); + } + // If the last character is ] *and* the first gibberish character is also ']' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == ']') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed array. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_array() noexcept { + auto error = check_root_array(); + if (error) { return error; } + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_element() noexcept { + assert_at_next(); + + logger::log_event(*this, "has_next_element"); + switch (*_json_iter->return_current_and_advance()) { + case ']': + logger::log_end_value(*_json_iter, "array"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + _json_iter->descend_to(depth()+1); + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between array elements"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_bool(const uint8_t *json) const noexcept { + auto not_true = atomparsing::str4ncmp(json, "true"); + auto not_false = atomparsing::str4ncmp(json, "fals") | (json[4] ^ 'e'); + bool error = (not_true && not_false) || jsoncharutils::is_not_structural_or_whitespace(json[not_true ? 5 : 4]); + if (error) { return incorrect_type_error("Not a boolean"); } + return simdjson_result(!not_true); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_null(const uint8_t *json) const noexcept { + bool is_null_string = !atomparsing::str4ncmp(json, "null") && jsoncharutils::is_structural_or_whitespace(json[4]); + // if we start with 'n', we must be a null + if(!is_null_string && json[0]=='n') { return incorrect_type_error("Not a null but starts with n"); } + return is_null_string; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_string(bool allow_replacement) noexcept { + return get_raw_json_string().unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_wobbly_string() noexcept { + return get_raw_json_string().unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_raw_json_string() noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64() noexcept { + auto result = numberparsing::parse_unsigned(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64_in_string() noexcept { + auto result = numberparsing::parse_unsigned_in_string(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64() noexcept { + auto result = numberparsing::parse_integer(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64_in_string() noexcept { + auto result = numberparsing::parse_integer_in_string(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double() noexcept { + auto result = numberparsing::parse_double(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double_in_string() noexcept { + auto result = numberparsing::parse_double_in_string(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_bool() noexcept { + auto result = parse_bool(peek_non_root_scalar("bool")); + if(result.error() == SUCCESS) { advance_non_root_scalar("bool"); } + return result; +} +simdjson_inline simdjson_result value_iterator::is_null() noexcept { + bool is_null_value; + SIMDJSON_TRY(parse_null(peek_non_root_scalar("null")).get(is_null_value)); + if(is_null_value) { advance_non_root_scalar("null"); } + return is_null_value; +} +simdjson_inline bool value_iterator::is_negative() noexcept { + return numberparsing::is_negative(peek_non_root_scalar("numbersign")); +} +simdjson_inline bool value_iterator::is_root_negative() noexcept { + return numberparsing::is_negative(peek_root_scalar("numbersign")); +} +simdjson_inline simdjson_result value_iterator::is_integer() noexcept { + return numberparsing::is_integer(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number_type() noexcept { + return numberparsing::get_number_type(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number() noexcept { + number num; + error_code error = numberparsing::parse_number(peek_non_root_scalar("number"), num); + if(error) { return error; } + return num; +} + +simdjson_inline simdjson_result value_iterator::is_root_integer(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("is_root_integer"); + uint8_t tmpbuf[20+1]; // <20 digits> is the longest possible unsigned integer + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + return false; // if there are more than 20 characters, it cannot be represented as an integer. + } + auto answer = numberparsing::is_integer(tmpbuf); + // If the parsing was a success, we must still check that it is + // a single scalar. Note that we parse first because of cases like '[]' where + // getting TRAILING_CONTENT is wrong. + if(check_trailing && (answer.error() == SUCCESS) && (!_json_iter->is_single_token())) { return TRAILING_CONTENT; } + return answer; +} + +simdjson_inline simdjson_result value_iterator::get_root_number_type(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1]; + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto answer = numberparsing::get_number_type(tmpbuf); + if (check_trailing && (answer.error() == SUCCESS) && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + return answer; +} +simdjson_inline simdjson_result value_iterator::get_root_number(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1]; + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + number num; + error_code error = numberparsing::parse_number(tmpbuf, num); + if(error) { return error; } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("number"); + return num; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_string(bool check_trailing, bool allow_replacement) noexcept { + return get_root_raw_json_string(check_trailing).unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_wobbly_string(bool check_trailing) noexcept { + return get_root_raw_json_string(check_trailing).unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_raw_json_string(bool check_trailing) noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1]; // <20 digits> is the longest possible unsigned integer + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1]; // <20 digits> is the longest possible unsigned integer + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1]; // -<19 digits> is the longest possible integer + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1]; // -<19 digits> is the longest possible integer + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1]; + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1]; + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_bool(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("bool"); + uint8_t tmpbuf[5+1]; + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 5+1)) { return incorrect_type_error("Not a boolean"); } + auto result = parse_bool(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("bool"); + } + return result; +} +simdjson_inline simdjson_result value_iterator::is_root_null(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("null"); + bool result = (max_len >= 4 && !atomparsing::str4ncmp(json, "null") && + (max_len == 4 || jsoncharutils::is_structural_or_whitespace(json[4]))); + if(result) { // we have something that looks like a null. + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("null"); + } + return result; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::skip_child() noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth >= _depth ); + + return _json_iter->skip_child(depth()); +} + +simdjson_inline value_iterator value_iterator::child() const noexcept { + assert_at_child(); + return { _json_iter, depth()+1, _json_iter->token.position() }; +} + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and iterator depth, which is a desired effect. It does not happen if is_open is +// marked non-inline. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline bool value_iterator::is_open() const noexcept { + return _json_iter->depth() >= depth(); +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool value_iterator::at_end() const noexcept { + return _json_iter->at_end(); +} + +simdjson_inline bool value_iterator::at_start() const noexcept { + return _json_iter->token.position() == start_position(); +} + +simdjson_inline bool value_iterator::at_first_field() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + return _json_iter->token.position() == start_position() + 1; +} + +simdjson_inline void value_iterator::abandon() noexcept { + _json_iter->abandon(); +} + +simdjson_warn_unused simdjson_inline depth_t value_iterator::depth() const noexcept { + return _depth; +} +simdjson_warn_unused simdjson_inline error_code value_iterator::error() const noexcept { + return _json_iter->error; +} +simdjson_warn_unused simdjson_inline uint8_t *&value_iterator::string_buf_loc() noexcept { + return _json_iter->string_buf_loc(); +} +simdjson_warn_unused simdjson_inline const json_iterator &value_iterator::json_iter() const noexcept { + return *_json_iter; +} +simdjson_warn_unused simdjson_inline json_iterator &value_iterator::json_iter() noexcept { + return *_json_iter; +} + +simdjson_inline const uint8_t *value_iterator::peek_start() const noexcept { + return _json_iter->peek(start_position()); +} +simdjson_inline uint32_t value_iterator::peek_start_length() const noexcept { + return _json_iter->peek_length(start_position()); +} + +simdjson_inline const uint8_t *value_iterator::peek_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return peek_start(); } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return; } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept { + logger::log_start_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + const uint8_t *json; + if (!is_at_start()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + json = peek_start(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + } else { + assert_at_start(); + /** + * We should be prudent. Let us peek. If it is not the right type, we + * return an error. Only once we have determined that we have the right + * type are we allowed to advance! + */ + json = _json_iter->peek(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + _json_iter->return_current_and_advance(); + } + + + return SUCCESS; +} + + +simdjson_inline const uint8_t *value_iterator::peek_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_root(); + return _json_iter->peek(); +} +simdjson_inline const uint8_t *value_iterator::peek_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_non_root_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_root(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} +simdjson_inline void value_iterator::advance_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_non_root_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::incorrect_type_error(const char *message) const noexcept { + logger::log_error(*_json_iter, start_position(), depth(), message); + return INCORRECT_TYPE; +} + +simdjson_inline bool value_iterator::is_at_start() const noexcept { + return position() == start_position(); +} + +simdjson_inline bool value_iterator::is_at_key() const noexcept { + // Keys are at the same depth as the object. + // Note here that we could be safer and check that we are within an object, + // but we do not. + return _depth == _json_iter->_depth && *_json_iter->peek() == '"'; +} + +simdjson_inline bool value_iterator::is_at_iterator_start() const noexcept { + // We can legitimately be either at the first value ([1]), or after the array if it's empty ([]). + auto delta = position() - start_position(); + return delta == 1 || delta == 2; +} + +inline void value_iterator::assert_at_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_container_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position + 1 ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_next() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +simdjson_inline void value_iterator::move_at_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position); +} + +simdjson_inline void value_iterator::move_at_container_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position + 1); +} + +simdjson_inline simdjson_result value_iterator::reset_array() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_array(); +} + +simdjson_inline simdjson_result value_iterator::reset_object() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_object(); +} + +inline void value_iterator::assert_at_child() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth + 1 ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_root() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth == 1 ); +} + +inline void value_iterator::assert_at_non_root_start() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth > 1 ); +} + +inline void value_iterator::assert_is_valid() const noexcept { + SIMDJSON_ASSUME( _json_iter != nullptr ); +} + +simdjson_inline bool value_iterator::is_valid() const noexcept { + return _json_iter != nullptr; +} + +simdjson_inline simdjson_result value_iterator::type() const noexcept { + switch (*peek_start()) { + case '{': + return json_type::object; + case '[': + return json_type::array; + case '"': + return json_type::string; + case 'n': + return json_type::null; + case 't': case 'f': + return json_type::boolean; + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return json_type::number; + default: + return TAPE_ERROR; + } +} + +simdjson_inline token_position value_iterator::start_position() const noexcept { + return _start_position; +} + +simdjson_inline token_position value_iterator::position() const noexcept { + return _json_iter->position(); +} + +simdjson_inline token_position value_iterator::end_position() const noexcept { + return _json_iter->end_position(); +} + +simdjson_inline token_position value_iterator::last_position() const noexcept { + return _json_iter->last_position(); +} + +simdjson_inline error_code value_iterator::report_error(error_code error, const char *message) noexcept { + return _json_iter->report_error(error, message); +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/value_iterator-inl.h */ +/* begin file include/simdjson/generic/ondemand/array_iterator-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result array_iterator::operator*() noexcept { + if (iter.error()) { iter.abandon(); return iter.error(); } + return value(iter.child()); +} +simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept { + return iter.is_open(); +} +simdjson_inline array_iterator &array_iterator::operator++() noexcept { + error_code error; + // PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here. + // However, it does not seem to make a perf difference, so we add it out of an abundance of caution. + if (( error = iter.error() )) { return *this; } + if (( error = iter.skip_child() )) { return *this; } + if (( error = iter.has_next_element().error() )) { return *this; } + return *this; +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array_iterator &&value +) noexcept + : SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++(first); + return *this; +} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/array_iterator-inl.h */ +/* begin file include/simdjson/generic/ondemand/object_iterator-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +// +// object_iterator +// + +simdjson_inline object_iterator::object_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result object_iterator::operator*() noexcept { + error_code error = iter.error(); + if (error) { iter.abandon(); return error; } + auto result = field::start(iter); + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (result.error()) { iter.abandon(); } + return result; +} +simdjson_inline bool object_iterator::operator==(const object_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool object_iterator::operator!=(const object_iterator &) const noexcept { + return iter.is_open(); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline object_iterator &object_iterator::operator++() noexcept { + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (!iter.is_open()) { return *this; } // Iterator will be released if there is an error + + simdjson_unused error_code error; + if ((error = iter.skip_child() )) { return *this; } + + simdjson_unused bool has_value; + if ((error = iter.has_next_field().get(has_value) )) { return *this; }; + return *this; +} +SIMDJSON_POP_DISABLE_WARNINGS + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter.depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the object is first found and the iterator is just past the {. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the , or } before the next value. In this state, +// depth == iter.depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter.depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter.depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the object iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet field may be missing or not be an +// object--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter.depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between fields, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter.depth == depth, and at_start == false. +// +// Errors that occur while reading a field to give to the user (such as when the key is not a +// string or the field is missing a colon) are yielded immediately. Depth is then decremented, +// moving to the Finished state without transitioning through an Error state at all. +// +// ## Terminal State +// +// The terminal state has iter.depth < depth. at_start is always false. +// +// - Finished: When we have reached a }, we are finished. We signal this by decrementing depth. +// In this state, iter.depth < depth, at_start == false, and error == SUCCESS. +// + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object_iterator &&value +) noexcept + : implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +// Checks for ']' and ',' +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++first; + return *this; +} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/object_iterator-inl.h */ +/* begin file include/simdjson/generic/ondemand/array-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter->depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the array is first found and the iterator is just past the `{`. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the `,` before the next value (or `]`). In this state, +// depth == iter->depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter->depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter->depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the array iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet element may be missing or not be an +// array--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter->depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between elements, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter->depth == depth, and at_start == false. +// +// ## Terminal State +// +// The terminal state has iter->depth < depth. at_start is always false. +// +// - Finished: When we have reached a `]` or have reported an error, we are finished. We signal this +// by decrementing depth. In this state, iter->depth < depth, at_start == false, and +// error == SUCCESS. +// + +simdjson_inline array::array(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result array::start(value_iterator &iter) noexcept { + // We don't need to know if the array is empty to start iteration, but we do want to know if there + // is an error--thus `simdjson_unused`. + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::start_root(value_iterator &iter) noexcept { + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_root_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::started(value_iterator &iter) noexcept { + bool has_value; + SIMDJSON_TRY(iter.started_array().get(has_value)); + return array(iter); +} + +simdjson_inline simdjson_result array::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return array_iterator(iter); +} +simdjson_inline simdjson_result array::end() noexcept { + return array_iterator(iter); +} +simdjson_inline error_code array::consume() noexcept { + auto error = iter.json_iter().skip_child(iter.depth()-1); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result array::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter._json_iter->unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline simdjson_result array::count_elements() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the array after counting the number of elements. + iter.reset_array(); + return count; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline simdjson_result array::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_array().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +inline simdjson_result array::reset() & noexcept { + return iter.reset_array(); +} + +inline simdjson_result array::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } + + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } + + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" + + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + // Get the child + auto child = at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; + } + + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); + } + return child; +} + +simdjson_inline simdjson_result array::at(size_t index) noexcept { + size_t i = 0; + for (auto value : *this) { + if (i == index) { return value; } + i++; + } + return INDEX_OUT_OF_BOUNDS; +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array &&value +) noexcept + : implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept + : implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::is_empty() & noexcept { + if (error()) { return error(); } + return first.is_empty(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/array-inl.h */ +/* begin file include/simdjson/generic/ondemand/document-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline document::document(ondemand::json_iterator &&_iter) noexcept + : iter{std::forward(_iter)} +{ + logger::log_start_value(iter, "document"); +} + +simdjson_inline document document::start(json_iterator &&iter) noexcept { + return document(std::forward(iter)); +} + +inline void document::rewind() noexcept { + iter.rewind(); +} + +inline std::string document::to_debug_string() noexcept { + return iter.to_string(); +} + +inline simdjson_result document::current_location() const noexcept { + return iter.current_location(); +} + +inline int32_t document::current_depth() const noexcept { + return iter.depth(); +} + +inline bool document::at_end() const noexcept { + return iter.at_end(); +} + + +inline bool document::is_alive() noexcept { + return iter.is_alive(); +} +simdjson_inline value_iterator document::resume_value_iterator() noexcept { + return value_iterator(&iter, 1, iter.root_position()); +} +simdjson_inline value_iterator document::get_root_value_iterator() noexcept { + return resume_value_iterator(); +} +simdjson_inline simdjson_result document::start_or_resume_object() noexcept { + if (iter.at_root()) { + return get_object(); + } else { + return object::resume(resume_value_iterator()); + } +} +simdjson_inline simdjson_result document::get_value() noexcept { + // Make sure we start any arrays or objects before returning, so that start_root_() + // gets called. + iter.assert_at_document_depth(); + switch (*iter.peek()) { + case '[': { + // The following lines check that the document ends with ]. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_array(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + case '{': { + // The following lines would check that the document ends with }. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_object(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + default: + // Unfortunately, scalar documents are a special case in simdjson and they cannot + // be safely converted to value instances. + return SCALAR_DOCUMENT_AS_VALUE; + } +} +simdjson_inline simdjson_result document::get_array() & noexcept { + auto value = get_root_value_iterator(); + return array::start_root(value); +} +simdjson_inline simdjson_result document::get_object() & noexcept { + auto value = get_root_value_iterator(); + return object::start_root(value); +} + +/** + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. We want to disallow trailing + * content. + * Thus, in several implementations below, we pass a 'true' parameter value to + * a get_root_value_iterator() method: this indicates that we disallow trailing content. + */ + +simdjson_inline simdjson_result document::get_uint64() noexcept { + return get_root_value_iterator().get_root_uint64(true); +} +simdjson_inline simdjson_result document::get_uint64_in_string() noexcept { + return get_root_value_iterator().get_root_uint64_in_string(true); +} +simdjson_inline simdjson_result document::get_int64() noexcept { + return get_root_value_iterator().get_root_int64(true); +} +simdjson_inline simdjson_result document::get_int64_in_string() noexcept { + return get_root_value_iterator().get_root_int64_in_string(true); +} +simdjson_inline simdjson_result document::get_double() noexcept { + return get_root_value_iterator().get_root_double(true); +} +simdjson_inline simdjson_result document::get_double_in_string() noexcept { + return get_root_value_iterator().get_root_double_in_string(true); +} +simdjson_inline simdjson_result document::get_string(bool allow_replacement) noexcept { + return get_root_value_iterator().get_root_string(true, allow_replacement); +} +simdjson_inline simdjson_result document::get_wobbly_string() noexcept { + return get_root_value_iterator().get_root_wobbly_string(true); +} +simdjson_inline simdjson_result document::get_raw_json_string() noexcept { + return get_root_value_iterator().get_root_raw_json_string(true); +} +simdjson_inline simdjson_result document::get_bool() noexcept { + return get_root_value_iterator().get_root_bool(true); +} +simdjson_inline simdjson_result document::is_null() noexcept { + return get_root_value_iterator().is_root_null(true); +} + +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_array(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_object(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_double(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_bool(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_value(); } + +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_double(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_uint64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_int64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_bool(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_value(); } + +template simdjson_inline error_code document::get(T &out) & noexcept { + return get().get(out); +} +template simdjson_inline error_code document::get(T &out) && noexcept { + return std::forward(*this).get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document::operator array() & noexcept(false) { return get_array(); } +simdjson_inline document::operator object() & noexcept(false) { return get_object(); } +simdjson_inline document::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document::operator double() noexcept(false) { return get_double(); } +simdjson_inline document::operator std::string_view() noexcept(false) { return get_string(false); } +simdjson_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); } +simdjson_inline document::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document::operator value() noexcept(false) { return get_value(); } + +#endif +simdjson_inline simdjson_result document::count_elements() & noexcept { + auto a = get_array(); + simdjson_result answer = a.count_elements(); + /* If there was an array, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::count_fields() & noexcept { + auto a = get_object(); + simdjson_result answer = a.count_fields(); + /* If there was an object, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::at(size_t index) & noexcept { + auto a = get_array(); + return a.at(index); +} +simdjson_inline simdjson_result document::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result document::end() & noexcept { + return {}; +} + +simdjson_inline simdjson_result document::find_field(std::string_view key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field(const char *key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field_unordered(std::string_view key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::find_field_unordered(const char *key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::operator[](std::string_view key) & noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result document::operator[](const char *key) & noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline error_code document::consume() noexcept { + auto error = iter.skip_child(0); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result document::raw_json() noexcept { + auto _iter = get_root_value_iterator(); + const uint8_t * starting_point{_iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter.unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result document::type() noexcept { + return get_root_value_iterator().type(); +} + +simdjson_inline simdjson_result document::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool document::is_negative() noexcept { + return get_root_value_iterator().is_root_negative(); +} + +simdjson_inline simdjson_result document::is_integer() noexcept { + return get_root_value_iterator().is_root_integer(true); +} + +simdjson_inline simdjson_result document::get_number_type() noexcept { + return get_root_value_iterator().get_root_number_type(true); +} + +simdjson_inline simdjson_result document::get_number() noexcept { + return get_root_value_iterator().get_root_number(true); +} + + +simdjson_inline simdjson_result document::raw_json_token() noexcept { + auto _iter = get_root_value_iterator(); + return std::string_view(reinterpret_cast(_iter.peek_start()), _iter.peek_start_length()); +} + +simdjson_inline simdjson_result document::at_pointer(std::string_view json_pointer) noexcept { + rewind(); // Rewind the document each time at_pointer is called + if (json_pointer.empty()) { + return this->get_value(); + } + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base( + error + ) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template +simdjson_inline simdjson_result simdjson_result::get() & noexcept { + if (error()) { return error(); } + return first.get(); +} +template +simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first).get(); +} +template +simdjson_inline error_code simdjson_result::get(T &out) & noexcept { + if (error()) { return error(); } + return first.get(out); +} +template +simdjson_inline error_code simdjson_result::get(T &out) && noexcept { + if (error()) { return error(); } + return std::forward(first).get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() & noexcept = delete; +template<> simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first); +} +template<> simdjson_inline error_code simdjson_result::get(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document &out) & noexcept = delete; +template<> simdjson_inline error_code simdjson_result::get(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document &out) && noexcept { + if (error()) { return error(); } + out = std::forward(first); + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} + +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} + + +simdjson_inline bool simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} + +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} + +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} + +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} + + +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline bool simdjson_result::at_end() const noexcept { + if (error()) { return error(); } + return first.at_end(); +} + + +simdjson_inline int32_t simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + + +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline document_reference::document_reference() noexcept : doc{nullptr} {} +simdjson_inline document_reference::document_reference(document &d) noexcept : doc(&d) {} +simdjson_inline void document_reference::rewind() noexcept { doc->rewind(); } +simdjson_inline simdjson_result document_reference::get_array() & noexcept { return doc->get_array(); } +simdjson_inline simdjson_result document_reference::get_object() & noexcept { return doc->get_object(); } +/** + * The document_reference instances are used primarily/solely for streams of JSON + * documents. + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. + * + * However, for streams of JSON documents, we want to be able to start from + * "321" "321" "321" + * and parse it successfully as a stream of JSON documents, calling get_uint64_in_string() + * successfully each time. + * + * To achieve this result, we pass a 'false' to a get_root_value_iterator() method: + * this indicates that we allow trailing content. + */ +simdjson_inline simdjson_result document_reference::get_uint64() noexcept { return doc->get_root_value_iterator().get_root_uint64(false); } +simdjson_inline simdjson_result document_reference::get_uint64_in_string() noexcept { return doc->get_root_value_iterator().get_root_uint64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_int64() noexcept { return doc->get_root_value_iterator().get_root_int64(false); } +simdjson_inline simdjson_result document_reference::get_int64_in_string() noexcept { return doc->get_root_value_iterator().get_root_int64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_double() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_double_in_string() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_string(bool allow_replacement) noexcept { return doc->get_root_value_iterator().get_root_string(false, allow_replacement); } +simdjson_inline simdjson_result document_reference::get_wobbly_string() noexcept { return doc->get_root_value_iterator().get_root_wobbly_string(false); } +simdjson_inline simdjson_result document_reference::get_raw_json_string() noexcept { return doc->get_root_value_iterator().get_root_raw_json_string(false); } +simdjson_inline simdjson_result document_reference::get_bool() noexcept { return doc->get_root_value_iterator().get_root_bool(false); } +simdjson_inline simdjson_result document_reference::get_value() noexcept { return doc->get_value(); } +simdjson_inline simdjson_result document_reference::is_null() noexcept { return doc->get_root_value_iterator().is_root_null(false); } + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document_reference::operator array() & noexcept(false) { return array(*doc); } +simdjson_inline document_reference::operator object() & noexcept(false) { return object(*doc); } +simdjson_inline document_reference::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document_reference::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document_reference::operator double() noexcept(false) { return get_double(); } +simdjson_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); } +simdjson_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); } +simdjson_inline document_reference::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document_reference::operator value() noexcept(false) { return value(*doc); } +#endif +simdjson_inline simdjson_result document_reference::count_elements() & noexcept { return doc->count_elements(); } +simdjson_inline simdjson_result document_reference::count_fields() & noexcept { return doc->count_fields(); } +simdjson_inline simdjson_result document_reference::at(size_t index) & noexcept { return doc->at(index); } +simdjson_inline simdjson_result document_reference::begin() & noexcept { return doc->begin(); } +simdjson_inline simdjson_result document_reference::end() & noexcept { return doc->end(); } +simdjson_inline simdjson_result document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::type() noexcept { return doc->type(); } +simdjson_inline simdjson_result document_reference::is_scalar() noexcept { return doc->is_scalar(); } +simdjson_inline simdjson_result document_reference::current_location() noexcept { return doc->current_location(); } +simdjson_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); } +simdjson_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); } +simdjson_inline simdjson_result document_reference::is_integer() noexcept { return doc->get_root_value_iterator().is_root_integer(false); } +simdjson_inline simdjson_result document_reference::get_number_type() noexcept { return doc->get_root_value_iterator().get_root_number_type(false); } +simdjson_inline simdjson_result document_reference::get_number() noexcept { return doc->get_root_value_iterator().get_root_number(false); } +simdjson_inline simdjson_result document_reference::raw_json_token() noexcept { return doc->raw_json_token(); } +simdjson_inline simdjson_result document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); } +simdjson_inline simdjson_result document_reference::raw_json() noexcept { return doc->raw_json();} +simdjson_inline document_reference::operator document&() const noexcept { return *doc; } + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + + + +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference value, error_code error) + noexcept : implementation_simdjson_result_base(std::forward(value), error) {} + + +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/document-inl.h */ +/* begin file include/simdjson/generic/ondemand/value-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline value::value(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} +simdjson_inline value value::start(const value_iterator &iter) noexcept { + return iter; +} +simdjson_inline value value::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline simdjson_result value::get_array() noexcept { + return array::start(iter); +} +simdjson_inline simdjson_result value::get_object() noexcept { + return object::start(iter); +} +simdjson_inline simdjson_result value::start_or_resume_object() noexcept { + if (iter.at_start()) { + return get_object(); + } else { + return object::resume(iter); + } +} + +simdjson_inline simdjson_result value::get_raw_json_string() noexcept { + return iter.get_raw_json_string(); +} +simdjson_inline simdjson_result value::get_string(bool allow_replacement) noexcept { + return iter.get_string(allow_replacement); +} +simdjson_inline simdjson_result value::get_wobbly_string() noexcept { + return iter.get_wobbly_string(); +} +simdjson_inline simdjson_result value::get_double() noexcept { + return iter.get_double(); +} +simdjson_inline simdjson_result value::get_double_in_string() noexcept { + return iter.get_double_in_string(); +} +simdjson_inline simdjson_result value::get_uint64() noexcept { + return iter.get_uint64(); +} +simdjson_inline simdjson_result value::get_uint64_in_string() noexcept { + return iter.get_uint64_in_string(); +} +simdjson_inline simdjson_result value::get_int64() noexcept { + return iter.get_int64(); +} +simdjson_inline simdjson_result value::get_int64_in_string() noexcept { + return iter.get_int64_in_string(); +} +simdjson_inline simdjson_result value::get_bool() noexcept { + return iter.get_bool(); +} +simdjson_inline simdjson_result value::is_null() noexcept { + return iter.is_null(); +} +template<> simdjson_inline simdjson_result value::get() noexcept { return get_array(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_object(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_number(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_double(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_bool(); } + +template simdjson_inline error_code value::get(T &out) noexcept { + return get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline value::operator array() noexcept(false) { + return get_array(); +} +simdjson_inline value::operator object() noexcept(false) { + return get_object(); +} +simdjson_inline value::operator uint64_t() noexcept(false) { + return get_uint64(); +} +simdjson_inline value::operator int64_t() noexcept(false) { + return get_int64(); +} +simdjson_inline value::operator double() noexcept(false) { + return get_double(); +} +simdjson_inline value::operator std::string_view() noexcept(false) { + return get_string(false); +} +simdjson_inline value::operator raw_json_string() noexcept(false) { + return get_raw_json_string(); +} +simdjson_inline value::operator bool() noexcept(false) { + return get_bool(); +} +#endif + +simdjson_inline simdjson_result value::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result value::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result value::count_elements() & noexcept { + simdjson_result answer; + auto a = get_array(); + answer = a.count_elements(); + // count_elements leaves you pointing inside the array, at the first element. + // We need to move back so that the user can create a new array (which requires that + // we point at '['). + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::count_fields() & noexcept { + simdjson_result answer; + auto a = get_object(); + answer = a.count_fields(); + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::at(size_t index) noexcept { + auto a = get_array(); + return a.at(index); +} + +simdjson_inline simdjson_result value::find_field(std::string_view key) noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result value::find_field(const char *key) noexcept { + return start_or_resume_object().find_field(key); +} + +simdjson_inline simdjson_result value::find_field_unordered(std::string_view key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result value::find_field_unordered(const char *key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} + +simdjson_inline simdjson_result value::operator[](std::string_view key) noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result value::operator[](const char *key) noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline simdjson_result value::type() noexcept { + return iter.type(); +} + +simdjson_inline simdjson_result value::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool value::is_negative() noexcept { + return iter.is_negative(); +} + +simdjson_inline simdjson_result value::is_integer() noexcept { + return iter.is_integer(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number_type() noexcept { + return iter.get_number_type(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number() noexcept { + return iter.get_number(); +} + +simdjson_inline std::string_view value::raw_json_token() noexcept { + return std::string_view(reinterpret_cast(iter.peek_start()), iter.peek_start_length()); +} + +simdjson_inline simdjson_result value::current_location() noexcept { + return iter.json_iter().current_location(); +} + +simdjson_inline int32_t value::current_depth() const noexcept{ + return iter.json_iter().depth(); +} + +simdjson_inline simdjson_result value::at_pointer(std::string_view json_pointer) noexcept { + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + if (error()) { return error(); } + return {}; +} + +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} + +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) noexcept { + if (error()) { return error(); } + return first[key]; +} + +simdjson_inline simdjson_result simdjson_result::get_array() noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return first.get(); +} +template simdjson_inline error_code simdjson_result::get(T &out) noexcept { + if (error()) { return error(); } + return first.get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return std::move(first); +} +template<> simdjson_inline error_code simdjson_result::get(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value &out) noexcept { + if (error()) { return error(); } + out = first; + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/value-inl.h */ +/* begin file include/simdjson/generic/ondemand/field-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +// clang 6 doesn't think the default constructor can be noexcept, so we make it explicit +simdjson_inline field::field() noexcept : std::pair() {} + +simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept + : std::pair(key, std::forward(value)) +{ +} + +simdjson_inline simdjson_result field::start(value_iterator &parent_iter) noexcept { + raw_json_string key; + SIMDJSON_TRY( parent_iter.field_key().get(key) ); + SIMDJSON_TRY( parent_iter.field_value() ); + return field::start(parent_iter, key); +} + +simdjson_inline simdjson_result field::start(const value_iterator &parent_iter, raw_json_string key) noexcept { + return field(key, parent_iter.child()); +} + +simdjson_inline simdjson_warn_unused simdjson_result field::unescaped_key(bool allow_replacement) noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us. + simdjson_result answer = first.unescape(second.iter.json_iter(), allow_replacement); + first.consume(); + return answer; +} + +simdjson_inline raw_json_string field::key() const noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us. + return first; +} + +simdjson_inline value &field::value() & noexcept { + return second; +} + +simdjson_inline value field::value() && noexcept { + return std::forward(*this).second; +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::field &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::key() noexcept { + if (error()) { return error(); } + return first.key(); +} +simdjson_inline simdjson_result simdjson_result::unescaped_key(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.unescaped_key(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::value() noexcept { + if (error()) { return error(); } + return std::move(first.value()); +} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/field-inl.h */ +/* begin file include/simdjson/generic/ondemand/object-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { return NO_SUCH_FIELD; } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { return NO_SUCH_FIELD; } + return value(iter.child()); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) & noexcept { + return find_field_unordered(key); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) && noexcept { + return std::forward(*this).find_field_unordered(key); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { return NO_SUCH_FIELD; } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { return NO_SUCH_FIELD; } + return value(iter.child()); +} + +simdjson_inline simdjson_result object::start(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_object().error() ); + return object(iter); +} +simdjson_inline simdjson_result object::start_root(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_root_object().error() ); + return object(iter); +} +simdjson_inline error_code object::consume() noexcept { + if(iter.is_at_key()) { + /** + * whenever you are pointing at a key, calling skip_child() is + * unsafe because you will hit a string and you will assume that + * it is string value, and this mistake will lead you to make bad + * depth computation. + */ + /** + * We want to 'consume' the key. We could really + * just do _json_iter->return_current_and_advance(); at this + * point, but, for clarity, we will use the high-level API to + * eat the key. We assume that the compiler optimizes away + * most of the work. + */ + simdjson_unused raw_json_string actual_key; + auto error = iter.field_key().get(actual_key); + if (error) { iter.abandon(); return error; }; + // Let us move to the value while we are at it. + if ((error = iter.field_value())) { iter.abandon(); return error; } + } + auto error_skip = iter.json_iter().skip_child(iter.depth()-1); + if(error_skip) { iter.abandon(); } + return error_skip; +} + +simdjson_inline simdjson_result object::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + const uint8_t * final_point{iter._json_iter->peek(0)}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result object::started(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.started_object().error() ); + return object(iter); +} + +simdjson_inline object object::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline object::object(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result object::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return object_iterator(iter); +} +simdjson_inline simdjson_result object::end() noexcept { + return object_iterator(iter); +} + +inline simdjson_result object::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; + + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); + } + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = find_field(unescaped); // Take note find_field does not unescape keys when matching + } else { + child = find_field(key); + } + if(child.error()) { + return child; // we do not continue if there was an error + } + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); + } + return child; +} + +simdjson_inline simdjson_result object::count_fields() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the object after counting the number of elements. + iter.reset_object(); + return count; +} + +simdjson_inline simdjson_result object::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_object().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +simdjson_inline simdjson_result object::reset() & noexcept { + return iter.reset_object(); +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first)[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +inline simdjson_result simdjson_result::reset() noexcept { + if (error()) { return error(); } + return first.reset(); +} + +inline simdjson_result simdjson_result::is_empty() noexcept { + if (error()) { return error(); } + return first.is_empty(); +} + +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/object-inl.h */ +/* begin file include/simdjson/generic/ondemand/parser-inl.h */ +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity} { +} + +simdjson_warn_unused simdjson_inline error_code parser::allocate(size_t new_capacity, size_t new_max_depth) noexcept { + if (new_capacity > max_capacity()) { return CAPACITY; } + if (string_buf && new_capacity == capacity() && new_max_depth == max_depth()) { return SUCCESS; } + + // string_capacity copied from document::allocate + _capacity = 0; + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset(new (std::nothrow) uint8_t[string_capacity]); +#if SIMDJSON_DEVELOPMENT_CHECKS + start_positions.reset(new (std::nothrow) token_position[new_max_depth]); +#endif + if (implementation) { + SIMDJSON_TRY( implementation->set_capacity(new_capacity) ); + SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) ); + } else { + SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) ); + } + _capacity = new_capacity; + _max_depth = new_max_depth; + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length() || !string_buf) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return document::start({ reinterpret_cast(json.data()), this }); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const char *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const uint8_t *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(std::string_view json, size_t allocated) & noexcept { + return iterate(padded_string_view(json, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const std::string &json) & noexcept { + return iterate(padded_string_view(json)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + padded_string_view json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + const padded_string &json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate_raw(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length()) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return json_iterator(reinterpret_cast(json.data()), this); +} + +inline simdjson_result parser::iterate_many(const uint8_t *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + if(allow_comma_separated && batch_size < len) { batch_size = len; } + return document_stream(*this, buf, len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const char *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(reinterpret_cast(buf), len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const std::string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const padded_string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} + +simdjson_inline size_t parser::capacity() const noexcept { + return _capacity; +} +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; +} +simdjson_inline size_t parser::max_depth() const noexcept { + return _max_depth; +} + +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity < dom::MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = dom::MINIMAL_DOCUMENT_CAPACITY; + } +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement) const noexcept { + uint8_t *end = implementation->parse_string(in.buf, dst, allow_replacement); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept { + uint8_t *end = implementation->parse_wobbly_string(in.buf, dst); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::parser &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson +/* end file include/simdjson/generic/ondemand/parser-inl.h */ +/* begin file include/simdjson/generic/ondemand/document_stream-inl.h */ +#include +#include +#include +namespace simdjson { +namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void stage1_worker::finish() { + // After calling "run" someone would call finish() to wait + // for the end of the processing. + // This function will wait until either the thread has done + // the processing or, else, the destructor has been called. + std::unique_lock lock(locking_mutex); + cond_var.wait(lock, [this]{return has_work == false;}); +} + +inline stage1_worker::~stage1_worker() { + // The thread may never outlive the stage1_worker instance + // and will always be stopped/joined before the stage1_worker + // instance is gone. + stop_thread(); +} + +inline void stage1_worker::start_thread() { + std::unique_lock lock(locking_mutex); + if(thread.joinable()) { + return; // This should never happen but we never want to create more than one thread. + } + thread = std::thread([this]{ + while(true) { + std::unique_lock thread_lock(locking_mutex); + // We wait for either "run" or "stop_thread" to be called. + cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); + // If, for some reason, the stop_thread() method was called (i.e., the + // destructor of stage1_worker is called, then we want to immediately destroy + // the thread (and not do any more processing). + if(!can_work) { + break; + } + this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, + this->_next_batch_start); + this->has_work = false; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify "finish" + thread_lock.unlock(); + } + } + ); +} + + +inline void stage1_worker::stop_thread() { + std::unique_lock lock(locking_mutex); + // We have to make sure that all locks can be released. + can_work = false; + has_work = false; + cond_var.notify_all(); + lock.unlock(); + if(thread.joinable()) { + thread.join(); + } +} + +inline void stage1_worker::run(document_stream * ds, parser * stage1, size_t next_batch_start) { + std::unique_lock lock(locking_mutex); + owner = ds; + _next_batch_start = next_batch_start; + stage1_thread_parser = stage1; + has_work = true; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify the thread lock that we have work + lock.unlock(); +} + +#endif // SIMDJSON_THREADS_ENABLED + +simdjson_inline document_stream::document_stream( + ondemand::parser &_parser, + const uint8_t *_buf, + size_t _len, + size_t _batch_size, + bool _allow_comma_separated +) noexcept + : parser{&_parser}, + buf{_buf}, + len{_len}, + batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, + allow_comma_separated{_allow_comma_separated}, + error{SUCCESS} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change + #endif +{ +#ifdef SIMDJSON_THREADS_ENABLED + if(worker.get() == nullptr) { + error = MEMALLOC; + } +#endif +} + +simdjson_inline document_stream::document_stream() noexcept + : parser{nullptr}, + buf{nullptr}, + len{0}, + batch_size{0}, + allow_comma_separated{false}, + error{UNINITIALIZED} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(false) + #endif +{ +} + +simdjson_inline document_stream::~document_stream() noexcept +{ + #ifdef SIMDJSON_THREADS_ENABLED + worker.reset(); + #endif +} + +inline size_t document_stream::size_in_bytes() const noexcept { + return len; +} + +inline size_t document_stream::truncated_bytes() const noexcept { + if(error == CAPACITY) { return len - batch_start; } + return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; +} + +simdjson_inline document_stream::iterator::iterator() noexcept + : stream{nullptr}, finished{true} { +} + +simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept + : stream{_stream}, finished{is_end} { +} + +simdjson_inline simdjson_result document_stream::iterator::operator*() noexcept { + //if(stream->error) { return stream->error; } + return simdjson_result(stream->doc, stream->error); +} + +simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { + // If there is an error, then we want the iterator + // to be finished, no matter what. (E.g., we do not + // keep generating documents with errors, or go beyond + // a document with errors.) + // + // Users do not have to call "operator*()" when they use operator++, + // so we need to end the stream in the operator++ function. + // + // Note that setting finished = true is essential otherwise + // we would enter an infinite loop. + if (stream->error) { finished = true; } + // Note that stream->error() is guarded against error conditions + // (it will immediately return if stream->error casts to false). + // In effect, this next function does nothing when (stream->error) + // is true (hence the risk of an infinite loop). + stream->next(); + // If that was the last document, we're finished. + // It is the only type of error we do not want to appear + // in operator*. + if (stream->error == EMPTY) { finished = true; } + // If we had any other kind of error (not EMPTY) then we want + // to pass it along to the operator* and we cannot mark the result + // as "finished" just yet. + return *this; +} + +simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { + return finished != other.finished; +} + +simdjson_inline document_stream::iterator document_stream::begin() noexcept { + start(); + // If there are no documents, we're finished. + return iterator(this, error == EMPTY); +} + +simdjson_inline document_stream::iterator document_stream::end() noexcept { + return iterator(this, true); +} + +inline void document_stream::start() noexcept { + if (error) { return; } + error = parser->allocate(batch_size); + if (error) { return; } + // Always run the first stage 1 parse immediately + batch_start = 0; + error = run_stage1(*parser, batch_start); + while(error == EMPTY) { + // In exceptional cases, we may start with an empty block + batch_start = next_batch_start(); + if (batch_start >= len) { return; } + error = run_stage1(*parser, batch_start); + } + if (error) { return; } + doc_index = batch_start; + doc = document(json_iterator(&buf[batch_start], parser)); + doc.iter._streaming = true; + + #ifdef SIMDJSON_THREADS_ENABLED + if (use_thread && next_batch_start() < len) { + // Kick off the first thread on next batch if needed + error = stage1_thread_parser.allocate(batch_size); + if (error) { return; } + worker->start_thread(); + start_stage1_thread(); + if (error) { return; } + } + #endif // SIMDJSON_THREADS_ENABLED +} + +inline void document_stream::next() noexcept { + // We always enter at once once in an error condition. + if (error) { return; } + next_document(); + if (error) { return; } + auto cur_struct_index = doc.iter._root - parser->implementation->structural_indexes.get(); + doc_index = batch_start + parser->implementation->structural_indexes[cur_struct_index]; + + // Check if at end of structural indexes (i.e. at end of batch) + if(cur_struct_index >= static_cast(parser->implementation->n_structural_indexes)) { + error = EMPTY; + // Load another batch (if available) + while (error == EMPTY) { + batch_start = next_batch_start(); + if (batch_start >= len) { break; } + #ifdef SIMDJSON_THREADS_ENABLED + if(use_thread) { + load_from_stage1_thread(); + } else { + error = run_stage1(*parser, batch_start); + } + #else + error = run_stage1(*parser, batch_start); + #endif + /** + * Whenever we move to another window, we need to update all pointers to make + * it appear as if the input buffer started at the beginning of the window. + * + * Take this input: + * + * {"z":5} {"1":1,"2":2,"4":4} [7, 10, 9] [15, 11, 12, 13] [154, 110, 112, 1311] + * + * Say you process the following window... + * + * '{"z":5} {"1":1,"2":2,"4":4} [7, 10, 9]' + * + * When you do so, the json_iterator has a pointer at the beginning of the memory region + * (pointing at the beginning of '{"z"...'. + * + * When you move to the window that starts at... + * + * '[7, 10, 9] [15, 11, 12, 13] ... + * + * then it is not sufficient to just run stage 1. You also need to re-anchor the + * json_iterator so that it believes we are starting at '[7, 10, 9]...'. + * + * Under the DOM front-end, this gets done automatically because the parser owns + * the pointer the data, and when you call stage1 and then stage2 on the same + * parser, then stage2 will run on the pointer acquired by stage1. + * + * That is, stage1 calls "this->buf = _buf" so the parser remembers the buffer that + * we used. But json_iterator has no callback when stage1 is called on the parser. + * In fact, I think that the parser is unaware of json_iterator. + * + * + * So we need to re-anchor the json_iterator after each call to stage 1 so that + * all of the pointers are in sync. + */ + doc.iter = json_iterator(&buf[batch_start], parser); + doc.iter._streaming = true; + /** + * End of resync. + */ + + if (error) { continue; } // If the error was EMPTY, we may want to load another batch. + doc_index = batch_start; + } + } +} + +inline void document_stream::next_document() noexcept { + // Go to next place where depth=0 (document depth) + error = doc.iter.skip_child(0); + if (error) { return; } + // Always set depth=1 at the start of document + doc.iter._depth = 1; + // consume comma if comma separated is allowed + if (allow_comma_separated) { doc.iter.consume_character(','); } + // Resets the string buffer at the beginning, thus invalidating the strings. + doc.iter._string_buf_loc = parser->string_buf.get(); + doc.iter._root = doc.iter.position(); +} + +inline size_t document_stream::next_batch_start() const noexcept { + return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; +} + +inline error_code document_stream::run_stage1(ondemand::parser &p, size_t _batch_start) noexcept { + // This code only updates the structural index in the parser, it does not update any json_iterator + // instance. + size_t remaining = len - _batch_start; + if (remaining <= batch_size) { + return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); + } else { + return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); + } +} + +simdjson_inline size_t document_stream::iterator::current_index() const noexcept { + return stream->doc_index; +} + +simdjson_inline std::string_view document_stream::iterator::source() const noexcept { + auto depth = stream->doc.iter.depth(); + auto cur_struct_index = stream->doc.iter._root - stream->parser->implementation->structural_indexes.get(); + + // If at root, process the first token to determine if scalar value + if (stream->doc.iter.at_root()) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': // Depth=1 already at start of document + break; + case '}': case ']': + depth--; + break; + default: // Scalar value document + // TODO: Remove any trailing whitespaces + // This returns a string spanning from start of value to the beginning of the next document (excluded) + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[++cur_struct_index] - current_index() - 1); + } + cur_struct_index++; + } + + while (cur_struct_index <= static_cast(stream->parser->implementation->n_structural_indexes)) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': + depth++; + break; + case '}': case ']': + depth--; + break; + } + if (depth == 0) { break; } + cur_struct_index++; + } + + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);; +} + +inline error_code document_stream::iterator::error() const noexcept { + return stream->error; +} + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void document_stream::load_from_stage1_thread() noexcept { + worker->finish(); + // Swap to the parser that was loaded up in the thread. Make sure the parser has + // enough memory to swap to, as well. + std::swap(stage1_thread_parser,*parser); + error = stage1_thread_error; + if (error) { return; } + + // If there's anything left, start the stage 1 thread! + if (next_batch_start() < len) { + start_stage1_thread(); + } +} + +inline void document_stream::start_stage1_thread() noexcept { + // we call the thread on a lambda that will update + // this->stage1_thread_error + // there is only one thread that may write to this value + // TODO this is NOT exception-safe. + this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error + size_t _next_batch_start = this->next_batch_start(); + + worker->run(this, & this->stage1_thread_parser, _next_batch_start); +} + +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace ondemand +} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result::simdjson_result( + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_stream &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} + +} +/* end file include/simdjson/generic/ondemand/document_stream-inl.h */ +/* begin file include/simdjson/generic/ondemand/serialization-inl.h */ + + +namespace simdjson { + +inline std::string_view trim(const std::string_view str) noexcept { + // We can almost surely do better by rolling our own find_first_not_of function. + size_t first = str.find_first_not_of(" \t\n\r"); + // If we have the empty string (just white space), then no trimming is possible, and + // we return the empty string_view. + if (std::string_view::npos == first) { return std::string_view(); } + size_t last = str.find_last_not_of(" \t\n\r"); + return str.substr(first, (last - first + 1)); +} + + +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value& x) noexcept { + /** + * If we somehow receive a value that has already been consumed, + * then the following code could be in trouble. E.g., we create + * an array as needed, but if an array was already created, then + * it could be bad. + */ + using namespace SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand; + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_type t; + auto error = x.type().get(t); + if(error != SUCCESS) { return error; } + switch (t) + { + case json_type::array: + { + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array array; + error = x.get_array().get(array); + if(error) { return error; } + return to_json_string(array); + } + case json_type::object: + { + SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object object; + error = x.get_object().get(object); + if(error) { return error; } + return to_json_string(object); + } + default: + return trim(x.raw_json_token()); + } +} + +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} +} // namespace simdjson + +namespace simdjson { namespace SIMDJSON_BUILTIN_IMPLEMENTATION { namespace ondemand { + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif +}}} // namespace simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand +/* end file include/simdjson/generic/ondemand/serialization-inl.h */ +/* end file include/simdjson/generic/ondemand-inl.h */ + + +namespace simdjson { + /** + * Represents the best statically linked simdjson implementation that can be used by the compiling + * program. + * + * Detects what options the program is compiled against, and picks the minimum implementation that + * will work on any computer that can run the program. For example, if you compile with g++ + * -march=westmere, it will pick the westmere implementation. The haswell implementation will + * still be available, and can be selected at runtime, but the builtin implementation (and any + * code that uses it) will use westmere. + */ + namespace builtin = SIMDJSON_BUILTIN_IMPLEMENTATION; + /** + * @copydoc simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand + */ + namespace ondemand = SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand; + /** + * Function which returns a pointer to an implementation matching the "builtin" implementation. + * The builtin implementation is the best statically linked simdjson implementation that can be used by the compiling + * program. If you compile with g++ -march=haswell, this will return the haswell implementation. + * It is handy to be able to check what builtin was used: builtin_implementation()->name(). + */ + const implementation * builtin_implementation(); +} // namespace simdjson + +#endif // SIMDJSON_BUILTIN_H +/* end file include/simdjson/builtin.h */ + +#endif // SIMDJSON_H +/* end file include/simdjson.h */ diff --git a/hybridse/src/CMakeLists.txt b/hybridse/src/CMakeLists.txt index f68ffd4333f..643a6dea739 100644 --- a/hybridse/src/CMakeLists.txt +++ b/hybridse/src/CMakeLists.txt @@ -64,7 +64,8 @@ target_link_libraries(hybridse_flags ${GFLAGS_LIBRARY}) # hybridse core library, enable BUILD_SHARED_LIBS to build shared lib add_library(hybridse_core ${SRC_FILE_LIST} $ case/case_data_mock.cc) target_link_libraries(hybridse_core - ${yaml_libs} ${LLVM_LIBS} ${ZETASQL_LIBS} ${OS_LIB} ${COMMON_LIBS} ${g_libs} ${LLVM_EXT_LIB} farmhash hybridse_flags) + ${yaml_libs} ${LLVM_LIBS} ${ZETASQL_LIBS} ${OS_LIB} ${COMMON_LIBS} ${g_libs} + ${LLVM_EXT_LIB} op_contrib::simdjson farmhash hybridse_flags) set(HYBRIDSE_CORE_LIBS hybridse_core) add_subdirectory(testing) diff --git a/hybridse/src/codegen/udf_ir_builder_test.cc b/hybridse/src/codegen/udf_ir_builder_test.cc index fd90a938129..bd70b4ab2ab 100644 --- a/hybridse/src/codegen/udf_ir_builder_test.cc +++ b/hybridse/src/codegen/udf_ir_builder_test.cc @@ -1463,6 +1463,16 @@ TEST_F(UdfIRBuilderTest, AddMonths) { CheckUdf, Date, int64_t>("add_months", Date(2013, 3, 31), Date(2012, 1, 31), 14); } +TEST_F(UdfIRBuilderTest, JsonArrayLength) { + CheckUdf, Nullable>("json_array_length", 0, "[]"); + CheckUdf, Nullable>("json_array_length", 3, "[1,2,3]"); + CheckUdf, Nullable>("json_array_length", 5, R"([1,2,3,{"f1":1,"f2":[5,6]},4])"); + + CheckUdf, Nullable>("json_array_length", nullptr, R"({})"); + CheckUdf, Nullable>("json_array_length", nullptr, "[1,2,3"); + CheckUdf, Nullable>("json_array_length", nullptr, nullptr); +} + } // namespace codegen } // namespace hybridse diff --git a/hybridse/src/udf/default_defs/json_defs.cc b/hybridse/src/udf/default_defs/json_defs.cc new file mode 100644 index 00000000000..d48a64b53cb --- /dev/null +++ b/hybridse/src/udf/default_defs/json_defs.cc @@ -0,0 +1,77 @@ +/** + * Copyright (c) 2023 OpenMLDB authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "simdjson.h" +#include "udf/default_udf_library.h" +#include "udf/udf_library.h" +#include "udf/udf_registry.h" + +namespace hybridse { +namespace udf { + +void json_array_length(openmldb::base::StringRef* in, int32_t* sz, bool* is_null) { + *is_null = true; + + simdjson::ondemand::parser parser; + simdjson::padded_string json(in->data_, in->size_); + simdjson::ondemand::document doc; + auto err = parser.iterate(json).get(doc); + if (err) { + return; + } + simdjson::ondemand::array arr; + err = doc.get_array().get(arr); + if (err) { + return; + } + size_t arr_sz; + arr.count_elements().tie(arr_sz, err); + if (err) { + return; + } + + *is_null = false; + *sz = static_cast(arr_sz); +} + +void DefaultUdfLibrary::InitJsonUdfs() { + RegisterExternal("json_array_length") + .args(json_array_length) + .doc(R"( + @brief Returns the number of elements in the outermost JSON array. + + Null returned if input is not valid JSON array string. + + @param jsonArray JSON arry in string + + Example: + + @code{.sql} + select json_array_length('[1, 2]') + -- 2 + + SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]'); + -- 5 + + select json_array_length('[1, 2') + -- NULL + @endcode + + @since 0.9.0)"); +} + +} // namespace udf +} // namespace hybridse diff --git a/hybridse/src/udf/default_udf_library.cc b/hybridse/src/udf/default_udf_library.cc index dff76da6b20..f2c9bc1afd8 100644 --- a/hybridse/src/udf/default_udf_library.cc +++ b/hybridse/src/udf/default_udf_library.cc @@ -667,6 +667,7 @@ void DefaultUdfLibrary::Init() { InitArrayUdfs(); InitEarthDistanceUdf(); + InitJsonUdfs(); AddExternalFunction("init_udfcontext.opaque", reinterpret_cast(static_cast(udf::v1::init_udfcontext))); diff --git a/hybridse/src/udf/default_udf_library.h b/hybridse/src/udf/default_udf_library.h index 3236c24e6f2..be5ed6c2414 100644 --- a/hybridse/src/udf/default_udf_library.h +++ b/hybridse/src/udf/default_udf_library.h @@ -57,6 +57,8 @@ class DefaultUdfLibrary : public UdfLibrary { // earth distance udfs void InitEarthDistanceUdf(); + + void InitJsonUdfs(); }; } // namespace udf From 73d29377845102d84b6a40e682a22d2a9a11a5f4 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Fri, 4 Aug 2023 11:12:20 +0800 Subject: [PATCH 015/111] fix: udf build and deploy (#3410) --- docs/en/developer/udf_develop_guide.md | 2 +- docs/zh/openmldb_sql/udf_develop_guide.md | 2 +- release/sbin/deploy-all.sh | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/en/developer/udf_develop_guide.md b/docs/en/developer/udf_develop_guide.md index 7153af27be9..63530ae0f1c 100644 --- a/docs/en/developer/udf_develop_guide.md +++ b/docs/en/developer/udf_develop_guide.md @@ -151,7 +151,7 @@ For more UDF implementation, see [here](../../../src/examples/test_udf.cc). - Run the compiling command. `-I` specifies the path of `include` directory. `-o` specifies the name of the dynamic library. ```shell -g++ -shared -o libtest_udf.so examples/test_udf.cc -I /work/OpenMLDB/include -std=c++11 -fPIC +g++ -shared -o libtest_udf.so examples/test_udf.cc -I /work/OpenMLDB/include -std=c++17 -fPIC ``` ### 2.3 Copy the Dynamic Library diff --git a/docs/zh/openmldb_sql/udf_develop_guide.md b/docs/zh/openmldb_sql/udf_develop_guide.md index bfe581068ab..7fe4e81988d 100644 --- a/docs/zh/openmldb_sql/udf_develop_guide.md +++ b/docs/zh/openmldb_sql/udf_develop_guide.md @@ -149,7 +149,7 @@ int64_t special_sum_output(::openmldb::base::UDFContext* ctx) { - 执行编译命令,其中 -I 指定inlcude目录的路径 -o 指定产出动态库的名称 - ```shell -g++ -shared -o libtest_udf.so examples/test_udf.cc -I /work/OpenMLDB/include -std=c++11 -fPIC +g++ -shared -o libtest_udf.so examples/test_udf.cc -I /work/OpenMLDB/include -std=c++17 -fPIC ``` ### 2.3 拷贝动态库 diff --git a/release/sbin/deploy-all.sh b/release/sbin/deploy-all.sh index 932ff52a7fa..f665810f7e4 100755 --- a/release/sbin/deploy-all.sh +++ b/release/sbin/deploy-all.sh @@ -60,7 +60,7 @@ distribute() { rsync -arz "${SPARK_HOME}/" "$host:${SPARK_HOME}/" fi else - dir_list=(bin sbin conf) + dir_list=(bin sbin conf udf) fi for folder in "${dir_list[@]}" do From 3a17aecd9cdb3be3040df1af06eb3386845e1315 Mon Sep 17 00:00:00 2001 From: emo-coder <122784380+emo-coder@users.noreply.github.com> Date: Mon, 7 Aug 2023 10:54:04 +0800 Subject: [PATCH 016/111] feat: support showing jobs sorted by id (#3371) --- src/sdk/job_table_helper.cc | 16 ++++++++++++++ src/sdk/sql_cluster_test.cc | 44 +++++++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+) diff --git a/src/sdk/job_table_helper.cc b/src/sdk/job_table_helper.cc index 91f1c4f63d4..8a486d3b59d 100644 --- a/src/sdk/job_table_helper.cc +++ b/src/sdk/job_table_helper.cc @@ -16,6 +16,7 @@ #include "sdk/job_table_helper.h" +#include #include #include #include "codec/schema_codec.h" @@ -164,6 +165,21 @@ std::shared_ptr JobTableHelper::MakeResultSet( vec.push_back("TaskManager"); records.emplace_back(std::move(vec)); } + + // sort jobs by id(asc) + std::sort(records.begin(), records.end(), + [](const std::vector& vec1, const std::vector& vec2) { + if (vec1.empty()) { + return true; + } + if (vec2.empty()) { + return false; + } + uint64_t id1, id2; + if (!absl::SimpleAtoi(vec1[0], &id1) || !absl::SimpleAtoi(vec2[0], &id2)) { + return vec1[0] < vec2[0]; + } + return id1 < id2;}); *status = {}; return ResultSetSQL::MakeResultSet(schema, records, status); } diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index b63f26feaf0..0155cf9cd81 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -26,6 +26,7 @@ #include "codec/fe_row_codec.h" #include "gflags/gflags.h" #include "gtest/gtest.h" +#include "sdk/job_table_helper.h" #include "sdk/mini_cluster.h" #include "sdk/sql_cluster_router.h" #include "sdk/sql_router.h" @@ -99,6 +100,49 @@ class SQLClusterDDLTest : public SQLClusterTest { std::string db; }; +TEST_F(SQLClusterDDLTest, TestShowSortedJobs) { + std::string name = "job_info" + GenRand(); + ::hybridse::sdk::Status status; + + std::string sql; + sql = "create table " + name + + "(" + "id int, job_type string, state string, start_time timestamp, end_time timestamp, " + "parameter string, cluster string, application_id string, error string, " + "index(key=id));"; + ASSERT_TRUE(router->ExecuteDDL(db, sql, &status)) << "ddl: " << sql; + ASSERT_TRUE(router->RefreshCatalog()); + + std::vector randint; + for (int i = 1; i < 100; i++) { + randint.push_back(i); + } + std::random_shuffle(randint.begin(), randint.end()); + for (uint64_t i = 0; i < randint.size(); i++) { + std::string id = std::to_string(randint[i]); + sql = "insert into " + name + + " values(" + id + ", \"Type\", \"State\", 0, " + id + ", " + "\"/tmp/sql-000000000000000000" + id + "\", \"local[*]\", \"local-0000000000000" + id + "\", \"\");"; + router->ExecuteSQL(db, sql, &status); + ASSERT_TRUE(status.IsOK()); + } + + auto rs = router->ExecuteSQL(db, "select * from " + name + ";", &status); + ASSERT_TRUE(status.IsOK()); + + rs = JobTableHelper::MakeResultSet(rs, "", &status); + ASSERT_TRUE(status.IsOK()); + + int id_current = 0, id_next; + while (rs->Next()) { + ASSERT_TRUE(rs->GetInt32(0, &id_next)); + ASSERT_LT(id_current, id_next); + id_current = id_next; + } + + ASSERT_TRUE(router->ExecuteDDL(db, "drop table " + name + ";", &status)); +} + TEST_F(SQLClusterDDLTest, TestCreateTableLike) { ::hybridse::sdk::Status status; From 55083c9827499dba0fa5b7e42e913c057ba54692 Mon Sep 17 00:00:00 2001 From: "github-actions[bot]" <41898282+github-actions[bot]@users.noreply.github.com> Date: Mon, 7 Aug 2023 16:19:47 +0800 Subject: [PATCH 017/111] docs(udf): upgrade udf list (#3421) --- .../functions_and_operators/Files/udfs_8h.md | 42 +++++++++++++++++++ .../functions_and_operators/Files/udfs_8h.md | 42 +++++++++++++++++++ 2 files changed, 84 insertions(+) diff --git a/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md b/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md index 890da2a2d60..fe8bf35b6b4 100644 --- a/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md +++ b/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md @@ -72,6 +72,7 @@ title: udfs/udfs.h | **[is_null](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-is-null)**()|
Check if input value is null, return bool. | | **[isnull](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-isnull)**()| | | **[join](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-join)**()|
For each string value from specified column of window, join by delimeter. Null values are skipped. | +| **[json_array_length](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-json-array-length)**()|
Returns the number of elements in the outermost JSON array. | | **[lag](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lag)**()|
Returns value evaluated at the row that is offset rows before the current row within the partition. Offset is evaluated with respect to the current row. | | **[last_day](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-last-day)**()|
Return the last day of the month to which the date belongs to. | | **[lcase](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lcase)**()|
Convert all the characters to lowercase. Note that characters with values > 127 are simply returned. | @@ -2139,6 +2140,47 @@ select `join`(split("k1:v1,k2:v2", ","), " "); * [`list`, `string`] +### function json_array_length + +```cpp +json_array_length() +``` + +**Description**: + +Returns the number of elements in the outermost JSON array. + +**Parameters**: + + * **jsonArray** JSON arry in string + + +**Since**: +0.9.0 + + +Null returned if input is not valid JSON array string. + + +Example: + +```sql + +select json_array_length('[1, 2]') +-- 2 + +SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]'); +-- 5 + +select json_array_length('[1, 2') +-- NULL +``` + + +**Supported Types**: + +* [`string`] + ### function lag ```cpp diff --git a/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md b/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md index 890da2a2d60..fe8bf35b6b4 100644 --- a/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md +++ b/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md @@ -72,6 +72,7 @@ title: udfs/udfs.h | **[is_null](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-is-null)**()|
Check if input value is null, return bool. | | **[isnull](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-isnull)**()| | | **[join](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-join)**()|
For each string value from specified column of window, join by delimeter. Null values are skipped. | +| **[json_array_length](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-json-array-length)**()|
Returns the number of elements in the outermost JSON array. | | **[lag](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lag)**()|
Returns value evaluated at the row that is offset rows before the current row within the partition. Offset is evaluated with respect to the current row. | | **[last_day](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-last-day)**()|
Return the last day of the month to which the date belongs to. | | **[lcase](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lcase)**()|
Convert all the characters to lowercase. Note that characters with values > 127 are simply returned. | @@ -2139,6 +2140,47 @@ select `join`(split("k1:v1,k2:v2", ","), " "); * [`list`, `string`] +### function json_array_length + +```cpp +json_array_length() +``` + +**Description**: + +Returns the number of elements in the outermost JSON array. + +**Parameters**: + + * **jsonArray** JSON arry in string + + +**Since**: +0.9.0 + + +Null returned if input is not valid JSON array string. + + +Example: + +```sql + +select json_array_length('[1, 2]') +-- 2 + +SELECT json_array_length('[1,2,3,{"f1":1,"f2":[5,6]},4]'); +-- 5 + +select json_array_length('[1, 2') +-- NULL +``` + + +**Supported Types**: + +* [`string`] + ### function lag ```cpp From d09d5e0d5d169ec5582849646ea757e8e87cdf02 Mon Sep 17 00:00:00 2001 From: emo-coder <122784380+emo-coder@users.noreply.github.com> Date: Mon, 7 Aug 2023 16:20:17 +0800 Subject: [PATCH 018/111] feat: support showing and dropping deployment with db (#3353) --- cases/plan/cmd.yaml | 20 +++++++++-- hybridse/src/planv2/ast_node_converter.cc | 14 ++++++-- src/sdk/sql_cluster_router.cc | 15 ++++---- src/sdk/sql_cluster_test.cc | 43 +++++++++++++++++++++++ 4 files changed, 81 insertions(+), 11 deletions(-) diff --git a/cases/plan/cmd.yaml b/cases/plan/cmd.yaml index 1b67d2d8e9c..3ca7d89ba6f 100644 --- a/cases/plan/cmd.yaml +++ b/cases/plan/cmd.yaml @@ -197,7 +197,7 @@ cases: +-node[CMD] +-cmd_type: show deployments +-args: [] - - id: show_deployment + - id: show_deployment1 desc: show deployment foo sql: SHOW DEPLOYMENT foo; expect: @@ -205,6 +205,14 @@ cases: +-node[CMD] +-cmd_type: show deployment +-args: [foo] + - id: show_deployment2 + desc: show deployment foo + sql: SHOW DEPLOYMENT db.foo; + expect: + node_tree_str: | + +-node[CMD] + +-cmd_type: show deployment + +-args: [db, foo] - id: show_functions desc: show functions sql: SHOW FUNCTIONS; @@ -213,7 +221,7 @@ cases: +-node[CMD] +-cmd_type: show functions +-args: [] - - id: drop_deployment + - id: drop_deployment1 desc: drop deployment foo sql: DROP DEPLOYMENT foo; expect: @@ -221,6 +229,14 @@ cases: +-node[CMD] +-cmd_type: drop deployment +-args: [foo] + - id: drop_deployment2 + desc: drop deployment foo + sql: DROP DEPLOYMENT db.foo; + expect: + node_tree_str: | + +-node[CMD] + +-cmd_type: drop deployment + +-args: [db, foo] - id: deploy_stmt_1 desc: deploy query task sql: DEPLOY foo SELECT col1 from t1; diff --git a/hybridse/src/planv2/ast_node_converter.cc b/hybridse/src/planv2/ast_node_converter.cc index 06b13fefd99..19bb0ccfc6c 100644 --- a/hybridse/src/planv2/ast_node_converter.cc +++ b/hybridse/src/planv2/ast_node_converter.cc @@ -2039,10 +2039,18 @@ base::Status ConvertDropStatement(const zetasql::ASTDropStatement* root, node::N return base::Status::OK(); } case zetasql::SchemaObjectKind::kDeployment: { - CHECK_TRUE(1 == names.size(), common::kSqlAstError, "Invalid deployment path expression ", + CHECK_TRUE(2 >= names.size(), common::kSqlAstError, "Invalid deployment path expression ", root->name()->ToIdentifierPathString()) - *output = - dynamic_cast(node_manager->MakeCmdNode(node::CmdType::kCmdDropDeployment, names[0])); + if (names.size() == 1) { + *output = + dynamic_cast(node_manager->MakeCmdNode(node::CmdType::kCmdDropDeployment, + names.back())); + + } else { + *output = + dynamic_cast(node_manager->MakeCmdNode(node::CmdType::kCmdDropDeployment, + names[0], names[1])); + } return base::Status::OK(); } default: { diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 3c768151aa2..5d821dbe884 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -1743,8 +1743,9 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h if (!status->IsOK()) { return {}; } + std::vector sps; - if (!ns_ptr->ShowProcedure(db, deploy_name, &sps, &msg)) { + if (!ns_ptr->ShowProcedure(db_name, deploy_name, &sps, &msg)) { *status = {StatusCode::kCmdError, msg}; return {}; } @@ -1781,13 +1782,15 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h return ResultSetSQL::MakeResultSet({"DB", "Deployment"}, lines, status); } case hybridse::node::kCmdDropDeployment: { - if (db.empty()) { - *status = {StatusCode::kCmdError, "please enter database first"}; + std::string db_name, deploy_name; + auto& args = cmd_node->GetArgs(); + *status = ParseNamesFromArgs(db, args, &db_name, &deploy_name); + if (!status->IsOK()) { return {}; } - std::string deploy_name = cmd_node->GetArgs()[0]; + // check if deployment, avoid deleting the normal procedure - auto sp = cluster_sdk_->GetProcedureInfo(db, deploy_name, &msg); + auto sp = cluster_sdk_->GetProcedureInfo(db_name, deploy_name, &msg); if (!sp || sp->GetType() != hybridse::sdk::kReqDeployment) { *status = {StatusCode::kCmdError, sp ? "not a deployment" : "deployment not found"}; return {}; @@ -1795,7 +1798,7 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h if (!CheckAnswerIfInteractive("deployment", deploy_name)) { return {}; } - if (ns_ptr->DropProcedure(db, deploy_name, msg)) { + if (ns_ptr->DropProcedure(db_name, deploy_name, msg)) { RefreshCatalog(); *status = {}; } else { diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index 0155cf9cd81..321be553905 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -100,6 +100,49 @@ class SQLClusterDDLTest : public SQLClusterTest { std::string db; }; + +TEST_F(SQLClusterDDLTest, TestShowAndDropDeployment) { + std::string db2 = "db" + GenRand(); + std::string table_name = "tb" + GenRand(); + std::string deploy_name = "dp" + GenRand(); + ::hybridse::sdk::Status status; + + std::string ddl; + ddl = "create table " + table_name + + "(" + "col1 int, col2 bigint, col3 string, " + "index(key = col3, ts = col2));"; + + ASSERT_TRUE(router->CreateDB(db2, &status)); + ASSERT_TRUE(router->ExecuteDDL(db, ddl, &status)); + + ASSERT_TRUE(router->RefreshCatalog()); + SetOnlineMode(router); + + router->ExecuteSQL(db, "deploy " + deploy_name + " select col1 from " + table_name + ";", &status); + ASSERT_TRUE(status.IsOK()); + router->ExecuteSQL(db2, "deploy " + deploy_name + " select col1 from " + db + "." + table_name + ";", &status); + ASSERT_TRUE(status.IsOK()); + + router->ExecuteSQL(db, "show deployment " + deploy_name + ";", &status); + ASSERT_TRUE(status.IsOK()); + router->ExecuteSQL(db, "show deployment " + db2 + "." + deploy_name + ";", &status); + ASSERT_TRUE(status.IsOK()); + + router->ExecuteSQL(db, "drop deployment " + deploy_name + ";", &status); + ASSERT_TRUE(status.IsOK()); + router->ExecuteSQL(db, "drop deployment " + db2 + "." + deploy_name + ";", &status); + ASSERT_TRUE(status.IsOK()); + + router->ExecuteSQL(db, "show deployment " + deploy_name + ";", &status); + ASSERT_FALSE(status.IsOK()); + router->ExecuteSQL(db, "show deployment " + db2 + "." + deploy_name + ";", &status); + ASSERT_FALSE(status.IsOK()); + + ASSERT_TRUE(router->ExecuteDDL(db, "drop table " + table_name + ";", &status)); + ASSERT_TRUE(router->DropDB(db2, &status)); +} + TEST_F(SQLClusterDDLTest, TestShowSortedJobs) { std::string name = "job_info" + GenRand(); ::hybridse::sdk::Status status; From 1ceeca13c3c58838c849c6d655c360e6c224e765 Mon Sep 17 00:00:00 2001 From: dl239 Date: Mon, 7 Aug 2023 08:59:00 -0500 Subject: [PATCH 019/111] feat: upgrade docker version (#3388) * feat: upgrade docker version * feat: update java/python version * feat: update script * fix: fix comment * revert setup * refact: rm unused code * refact: revert prepare_release.sh --- CMakeLists.txt | 4 ++-- demo/Dockerfile | 2 +- java/hybridse-native/pom.xml | 2 +- java/hybridse-proto/pom.xml | 2 +- java/hybridse-sdk/pom.xml | 2 +- java/openmldb-batch/pom.xml | 2 +- java/openmldb-batchjob/pom.xml | 2 +- java/openmldb-common/pom.xml | 2 +- java/openmldb-jdbc/pom.xml | 2 +- java/openmldb-native/pom.xml | 2 +- java/openmldb-spark-connector/pom.xml | 2 +- java/openmldb-synctool/pom.xml | 2 +- java/openmldb-taskmanager/pom.xml | 2 +- java/pom.xml | 4 ++-- python/openmldb_sdk/setup.py | 2 +- python/openmldb_tool/setup.py | 2 +- steps/post_release.sh | 2 ++ test/integration-test/openmldb-test-python/install.sh | 2 +- 18 files changed, 21 insertions(+), 19 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 62ff8443380..a9f10095c38 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -35,8 +35,8 @@ endif() message (STATUS "CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}") set(OPENMLDB_VERSION_MAJOR 0) -set(OPENMLDB_VERSION_MINOR 7) -set(OPENMLDB_VERSION_BUG 0) +set(OPENMLDB_VERSION_MINOR 8) +set(OPENMLDB_VERSION_BUG 2) function(get_commitid CODE_DIR COMMIT_ID) find_package(Git REQUIRED) diff --git a/demo/Dockerfile b/demo/Dockerfile index 354fe86bd66..e6495931d35 100644 --- a/demo/Dockerfile +++ b/demo/Dockerfile @@ -25,7 +25,7 @@ COPY *_dist.yml /work/ ENV LANG=en_US.UTF-8 ENV SPARK_HOME=/work/openmldb/spark-3.2.1-bin-openmldbspark -ARG OPENMLDB_VERSION=0.8.1 +ARG OPENMLDB_VERSION=0.8.2 ENV OPENMLDB_VERSION="${OPENMLDB_VERSION}" RUN if [ "${USE_ADD_WHL}" = "true" ] ; then \ diff --git a/java/hybridse-native/pom.xml b/java/hybridse-native/pom.xml index 897adba864d..e347b945b6c 100644 --- a/java/hybridse-native/pom.xml +++ b/java/hybridse-native/pom.xml @@ -5,7 +5,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/hybridse-proto/pom.xml b/java/hybridse-proto/pom.xml index ded34ae58f4..83b28bdd95f 100644 --- a/java/hybridse-proto/pom.xml +++ b/java/hybridse-proto/pom.xml @@ -4,7 +4,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/hybridse-sdk/pom.xml b/java/hybridse-sdk/pom.xml index e9b7a2fc9bd..e103c064280 100644 --- a/java/hybridse-sdk/pom.xml +++ b/java/hybridse-sdk/pom.xml @@ -6,7 +6,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/openmldb-batch/pom.xml b/java/openmldb-batch/pom.xml index 5fe4dfb31aa..a2a93ad4d3a 100644 --- a/java/openmldb-batch/pom.xml +++ b/java/openmldb-batch/pom.xml @@ -7,7 +7,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT openmldb-batch diff --git a/java/openmldb-batchjob/pom.xml b/java/openmldb-batchjob/pom.xml index 9eed0f057da..fddac8ffb82 100644 --- a/java/openmldb-batchjob/pom.xml +++ b/java/openmldb-batchjob/pom.xml @@ -7,7 +7,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT openmldb-batchjob diff --git a/java/openmldb-common/pom.xml b/java/openmldb-common/pom.xml index d24d31c44a6..8bd3e054cce 100644 --- a/java/openmldb-common/pom.xml +++ b/java/openmldb-common/pom.xml @@ -5,7 +5,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT 4.0.0 openmldb-common diff --git a/java/openmldb-jdbc/pom.xml b/java/openmldb-jdbc/pom.xml index fe29c9c4905..0b2b8af9df0 100644 --- a/java/openmldb-jdbc/pom.xml +++ b/java/openmldb-jdbc/pom.xml @@ -5,7 +5,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/openmldb-native/pom.xml b/java/openmldb-native/pom.xml index 0175a87f401..8bd8a8399f3 100644 --- a/java/openmldb-native/pom.xml +++ b/java/openmldb-native/pom.xml @@ -5,7 +5,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/openmldb-spark-connector/pom.xml b/java/openmldb-spark-connector/pom.xml index e36ad745b71..f8d2e31d9f2 100644 --- a/java/openmldb-spark-connector/pom.xml +++ b/java/openmldb-spark-connector/pom.xml @@ -6,7 +6,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT openmldb-spark-connector diff --git a/java/openmldb-synctool/pom.xml b/java/openmldb-synctool/pom.xml index 60917c9e905..a877d921eac 100644 --- a/java/openmldb-synctool/pom.xml +++ b/java/openmldb-synctool/pom.xml @@ -6,7 +6,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT openmldb-synctool openmldb-synctool diff --git a/java/openmldb-taskmanager/pom.xml b/java/openmldb-taskmanager/pom.xml index 108725a9acf..56aeef8b7c3 100644 --- a/java/openmldb-taskmanager/pom.xml +++ b/java/openmldb-taskmanager/pom.xml @@ -6,7 +6,7 @@ openmldb-parent com.4paradigm.openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT openmldb-taskmanager openmldb-taskmanager diff --git a/java/pom.xml b/java/pom.xml index 1d168284dbc..3a46ab4d5c1 100644 --- a/java/pom.xml +++ b/java/pom.xml @@ -7,7 +7,7 @@ openmldb-parent pom openmldb - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT hybridse-sdk hybridse-native @@ -65,7 +65,7 @@ - 0.7.0-SNAPSHOT + 0.8.2-SNAPSHOT error 2.9.0 diff --git a/python/openmldb_sdk/setup.py b/python/openmldb_sdk/setup.py index 196841116ba..528250e1822 100644 --- a/python/openmldb_sdk/setup.py +++ b/python/openmldb_sdk/setup.py @@ -18,7 +18,7 @@ setup( name='openmldb', - version='0.7.0a0', + version='0.8.2a0', author='OpenMLDB Team', author_email=' ', url='https://github.com/4paradigm/OpenMLDB', diff --git a/python/openmldb_tool/setup.py b/python/openmldb_tool/setup.py index f7120cfa256..097b3c229c8 100644 --- a/python/openmldb_tool/setup.py +++ b/python/openmldb_tool/setup.py @@ -18,7 +18,7 @@ setup( name="openmldb-tool", - version="0.7.0a0", + version="0.8.2a0", author="OpenMLDB Team", author_email=" ", url="https://github.com/4paradigm/OpenMLDB", diff --git a/steps/post_release.sh b/steps/post_release.sh index 36b4b656e4a..05c3a25183e 100644 --- a/steps/post_release.sh +++ b/steps/post_release.sh @@ -24,3 +24,5 @@ fi sed -i"" -e "s/OPENMLDB_VERSION=[0-9]\.[0-9]\.[0-9]/OPENMLDB_VERSION=${VERSION}/g" demo/Dockerfile sed -i"" -e "s/SPARK_VERSION=[0-9]\.[0-9]\.[0-9]/SPARK_VERSION=${VERSION}/g" test/integration-test/openmldb-test-python/install.sh + +sh steps/prepare_release.sh "${VERSION}.a0" diff --git a/test/integration-test/openmldb-test-python/install.sh b/test/integration-test/openmldb-test-python/install.sh index c859a44ee5a..9b16e934807 100644 --- a/test/integration-test/openmldb-test-python/install.sh +++ b/test/integration-test/openmldb-test-python/install.sh @@ -17,7 +17,7 @@ set -eE -x CURRENT_DIR=$(dirname "$0") -SPARK_VERSION=0.8.1 +SPARK_VERSION=0.8.2 pushd "${CURRENT_DIR}" cp -r ../../../openmldb ./ sed -i"" -e "s/OPENMLDB_MODE:=standalone/OPENMLDB_MODE:=cluster/g" openmldb/conf/openmldb-env.sh From 9c44acb5fa0a8f7b35112808a8de2399b6e3646f Mon Sep 17 00:00:00 2001 From: HuangWei Date: Fri, 11 Aug 2023 17:16:51 +0800 Subject: [PATCH 020/111] build: add usability testing and use ori tar name (#3411) --- demo/docker-compose.test.yml | 11 +- demo/setup_openmldb.sh | 20 ++- demo/usability_testing/README.md | 119 +++++++++++++ demo/usability_testing/data_mocker.py | 167 ++++++++++++++++++ demo/usability_testing/demo_setup.sh | 9 + demo/usability_testing/demo_test.sh | 26 +++ .../offline_test.sql.template | 39 ++++ demo/usability_testing/simple_test.sql | 28 +++ demo/usability_testing/udf_test.sql | 17 ++ 9 files changed, 426 insertions(+), 10 deletions(-) create mode 100644 demo/usability_testing/README.md create mode 100644 demo/usability_testing/data_mocker.py create mode 100644 demo/usability_testing/demo_setup.sh create mode 100644 demo/usability_testing/demo_test.sh create mode 100644 demo/usability_testing/offline_test.sql.template create mode 100644 demo/usability_testing/simple_test.sql create mode 100644 demo/usability_testing/udf_test.sql diff --git a/demo/docker-compose.test.yml b/demo/docker-compose.test.yml index 9fd12df1b35..72339162894 100644 --- a/demo/docker-compose.test.yml +++ b/demo/docker-compose.test.yml @@ -10,12 +10,16 @@ services: - ./java_quickstart/demo/target:/work/java_quickstart - ./python_quickstart:/work/python_quickstart - ./cxx_quickstart:/work/cxx_quickstart + - ./usability_testing:/work/usability_testing # You can add `cat ` here(e.g. `cat /work/openmldb/taskmanager/bin/logs/job_1_error.log`, cat `predict.log`), to check the log info. # No need to docker-compose build again. But if you modified the Dockerfile, must rebuild it. command: - /bin/bash - -ecx # -e, otherwise, the command may not exit when 'exit' - | + # deploy-all miss udf dir <=0.8.2, mkdir first until new version released + mkdir -p /tmp/openmldb/tablet-1/udf + mkdir -p /tmp/openmldb/tablet-2/udf ./init.sh sleep 5 # quickstart test @@ -61,8 +65,11 @@ services: # check deployment, jobs will be checked by openmldb_tool curl http://127.0.0.1:9080/dbs/JD_db/deployments/demo | grep "ok" || exit -1 - # TODO(hw): udf test - + # usability testing, don't miss interactive flag + cd /work/usability_testing + bash demo_setup.sh + bash demo_test.sh + cd /work openmldb_tool status --diff -f /work/openmldb/conf/hosts openmldb_tool inspect diff --git a/demo/setup_openmldb.sh b/demo/setup_openmldb.sh index 8f5dea44f80..e7a98c51f09 100755 --- a/demo/setup_openmldb.sh +++ b/demo/setup_openmldb.sh @@ -18,29 +18,34 @@ set -eE -x VERSION="$1" if [[ -z ${VERSION} ]]; then - VERSION=0.6.3 + VERSION=0.8.2 fi echo "version: ${VERSION}" +ZK_TAR="zookeeper-3.4.14.tar.gz" +OPENMLDB_TAR="openmldb-${VERSION}-linux.tar.gz" +# TODO(hw): spark release pkg name should add version +SPARK_TAR="spark-3.2.1-bin-openmldbspark.tgz" + if [ $# -gt 1 ] && [ "$2" = "skip_download" ]; then echo "skip download packages, the 3 packages should in current dir" else - curl -SLo zookeeper.tar.gz https://archive.apache.org/dist/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz - curl -SLo openmldb.tar.gz "https://github.com/4paradigm/OpenMLDB/releases/download/v${VERSION}/openmldb-${VERSION}-linux.tar.gz" - curl -SLo spark-3.2.1-bin-openmldbspark.tgz "https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb${VERSION}/spark-3.2.1-bin-openmldbspark.tgz" + curl -SLO "https://archive.apache.org/dist/zookeeper/zookeeper-3.4.14/${ZK_TAR}" + curl -SLO "https://github.com/4paradigm/OpenMLDB/releases/download/v${VERSION}/${OPENMLDB_TAR}" + curl -SLO "https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb${VERSION}/${SPARK_TAR}" fi WORKDIR=/work mkdir -p "$WORKDIR" -tar xzf zookeeper.tar.gz -C "$WORKDIR" +tar xzf "${ZK_TAR}" -C "$WORKDIR" pushd $WORKDIR/zookeeper-3.4.14/ cp conf/zoo_sample.cfg conf/zoo.cfg popd mkdir -p "${WORKDIR}/openmldb" -tar xzf openmldb.tar.gz -C "${WORKDIR}/openmldb" --strip-components 1 +tar xzf "${OPENMLDB_TAR}" -C "${WORKDIR}/openmldb" --strip-components 1 # remove symbols and sections strip -s "${WORKDIR}/openmldb/bin/openmldb" # do not install sync tools in demo docker @@ -48,12 +53,11 @@ rm "${WORKDIR}/openmldb/bin/data_collector" rm -rf "${WORKDIR}/openmldb/synctool" mkdir -p "${WORKDIR}/openmldb/spark-3.2.1-bin-openmldbspark" -tar xzf spark-3.2.1-bin-openmldbspark.tgz -C "${WORKDIR}/openmldb/spark-3.2.1-bin-openmldbspark" --strip-components 1 +tar xzf "${SPARK_TAR}" -C "${WORKDIR}/openmldb/spark-3.2.1-bin-openmldbspark" --strip-components 1 pushd "${WORKDIR}/openmldb" ln -s "${WORKDIR}/zookeeper-3.4.14" zookeeper ln -s spark-3.2.1-bin-openmldbspark spark -rm -f spark-3.2.1-bin-openmldbspark/jars/curator-* # curator NoSuchMethodError error popd rm -f ./*.tar.gz diff --git a/demo/usability_testing/README.md b/demo/usability_testing/README.md new file mode 100644 index 00000000000..0b71594a0bf --- /dev/null +++ b/demo/usability_testing/README.md @@ -0,0 +1,119 @@ +# Usability testing + +## Introduction + +This directory contains the black-box testing for the project. The tests are sql scripts that are run against the database. But some of the tests need setup and the setup may can not be done automatically. + +Notice that, we need to check the result manually, grep `ERROR` in sql results and check the output result data, **not only check job status**. We may support run scripts by diag tool, and it will check the result automatically(add mark to let diag tool sleep for some async ops). + +## Setup data + +In some cases, you should setup data before running the tests. The data can be generated by `data_mocker.py` or you can prepare the data manually. +``` +pip3 install faker pandas numpy click pyarrow +python3 data_mocker.py -s "create table t1(c1 int, c2 string)" -o test -nf 10 -n 1000 +python3 data_mocker.py -s "c1 int, c2 string" -o test -nf 10 -n 1000 +``` + +## simple_test.sql + +This directory contains the simple tests. The tests are simple and can be run automatically. No setup needed. + +```shell +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --interactive=false < simple_test.sql +# or +cat simple_test.sql | /work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --interactive=false +``` + +If some async jobs still running after drop, you can ignore them, just need to care about sync jobs. If you want check async jobs, you should comment out the `drop table/database` statement in the script. To check the result, you can `SHOW JOBS` or use diag tool to check the result. + +So `RUNNING` is ok, but there should be no `ERROR`/`FAILED` in the result. + +## offline + +This script contains the offline tests. The tests are simple and can be run automatically. But it needs setup, may needs to be done manually. + +Setup: + +- Generate data, you can gen a big data set to check about spark execute config. Here just a small data set. +``` +# generate data, multi files, big file e.g. 1G/512M, to meet executor memory limit +python3 data_mocker.py -s "create table t1(c1 int, c2 string)" -o /tmp/openmldb_test/t1/ -nf 10 -n 1000 -f csv +python3 data_mocker.py -s "create table t1(c1 int, c2 string)" -o /tmp/openmldb_test/t2/ -nf 10 -n 1000 +ls /tmp/openmldb_test/t1/*.csv +ls /tmp/openmldb_test/t2/*.parquet +``` + +- Source place, hdfs/local/hive, choose one. + - Local spark and file, so just use the date generated in `file:///tmp/openmldb_test`. And dst path is also local. + ```{note} + We assume the taskmanager process is running on the same machine as the test, and the spark master is local. Distributed cluster should use hdfs path. + ``` + ``` + sed "s##file:///tmp/openmldb_test#" offline_test.sql.template > offline_test.sql + sed -i'' "s##file:///tmp/openmldb_testout#" offline_test.sql + ``` + - HDFS, you should put the data to hdfs, and give the hdfs path. e.g. + ``` + HDFS_PATH=hdfs://0.0.0.0/tmp # or hdfs:///tmp, hdfs cluster is needless, use the cluster in spark config + sed "s##${HDFS_PATH}/openmldb_test#" offline_test.sql.template > offline_test.sql + sed -i'' "s##${HDFS_PATH}/openmldb_testout#" offline_test.sql + ``` + ```{note} + Data in HDFS is `$HDFS_PATH/openmldb_test/t1` and `$HDFS_PATH/openmldb_test/t2`, and the dst path is `$HDFS_PATH/openmldb_testout`. We can create dst dir when `SELECT INTO`, but it needs write permission of `$HDFS_PATH`. + ``` + - Hive, you should create hive table t1&t2, load data to hive talbes, and give the hive path with database, e.g. + ``` + HIVE_PATH=hive://db1. + sed "s##${HIVE_PATH}#" offline_test.sql.template > offline_test.sql + sed -i'' "s##${HIVE_PATH}#" offline_test.sql + ``` + ```{note} + Table in HIVE is `db1.t1` and `db1.t2`, and the dst path is `db1.t1_deep`, `db1.t2_deep`, etc. We can create dst table when `SELECT INTO`, but it needs write permission of HIVE. + + If you want use custom hive table, feel free to modify the script. + ``` + +Run(no matter source type): +``` +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --interactive=false < offline_test.sql +``` + +Check: + +You should check data in dst path, get the right row count, e.g. 10*1000=10000, but csv files have header, so one file has one more line. So you should run: +``` +wc -l /tmp/openmldb_testout/t1_deep/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}' +wc -l /tmp/openmldb_testout/t1_soft/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}' +wc -l /tmp/openmldb_testout/t2_deep/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}' +# _double should be 2*total_row_count +wc -l /tmp/openmldb_testout/t1_double/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}' +wc -l /tmp/openmldb_testout/t2_double/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}' +``` + +HDFS could use ```hdfs dfs -cat | wc -l``` to get total rows with header rows, and use `hdfs dfs -ls` to check file count. Or download the files to local and check. + +HIVE could use `select count(*) from .` in HIVE Cli to get total rows. + +We use offline engine(Spark) to load online data, so online data load is tested here. Check the `Row` in the result of script(`show table status`) to see if the row count is right. + +## udf + +Setup: +- download libtest_udf.so, src is `src/examples/test_udf.cc` +``` +curl -SLO https://openmldb.ai/download/testing/libtest_udf.so +``` +- copy libtest_udf.so to the right place + - demo onebox + ```shell + cp libtest_udf.so /tmp/openmldb/tablet-1/udf + cp libtest_udf.so /tmp/openmldb/tablet-2/udf + cp libtest_udf.so /work/openmldb/taskmanager/bin/udf + ``` + - distributed cluster, copy or download to all TabletServer `udf/` and all TaskManager `taskmanager/bin/udf/` manually + +Run: +``` +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --interactive=false < udf_test.sql +``` diff --git a/demo/usability_testing/data_mocker.py b/demo/usability_testing/data_mocker.py new file mode 100644 index 00000000000..f873daec9dc --- /dev/null +++ b/demo/usability_testing/data_mocker.py @@ -0,0 +1,167 @@ +from faker import Faker +import re +import os +import click +import csv +from typing import Optional +import numpy as np +import pandas as pd + + +# to support save csv, and faster parquet, we don't use faker-cli directly +# but the design is similar, thanks for the author +fake = Faker() +def fake_write(writer, num_rows, col_types): + for i in range(num_rows): + row = [ fake.format(ctype[0], **ctype[1]) for ctype in col_types ] + writer.write(row) + +class Writer: + def __init__(self, output, headers, filename: Optional[str] = None): + self.output = output + self.headers = headers + self.writer = None + + def write(self, row): + pass + + def close(self): + pass + + +class CSVWriter(Writer): + def __init__(self, output, headers, filename): + super().__init__(output, headers) + self.writer = csv.writer(self.output) + self.write(headers) + + def write(self, row): + self.writer.writerow(row) + +class ParquetWriter(Writer): + def __init__(self, output, headers, filename, types): + super().__init__(output, headers) + self.filename = filename + self.append_dicts = {} + # sql types to dtype + DTYPES = { + 'smallint': "int16", + "int": "int32", + 'string':'str', + 'bigint': "int64", + "date": "datetime64[ns]", + "timestamp": "datetime64[ns]", + "float":"float32", + 'double':"float64", + } + self.append_rows = [] + self.types = types + self.dtype = [(k, v) for k,v in zip(self.headers, [DTYPES[t] if t in DTYPES else t for t in types])] + # print(self.dtype) + + def write(self, row): + """concat_tables is slow, so we store rows in cache""" + self.append_rows.append(tuple(row)) + + def close(self): + print('write data to file') + # print(self.append_rows) + data = np.array(self.append_rows, dtype=self.dtype) + df = pd.DataFrame(data) + # speical for date type + for c, t in zip(self.headers, self.types): + if t == 'date': + df[c] = df[c].dt.date + # print(df) + # engine can't use fastparquet when use_deprecated_int96_timestamps + # df.to_parquet(path, times="int96") + # Which forwards the kwarg **{"times": "int96"} into fastparquet.writer.write(). + df.to_parquet(self.filename, use_deprecated_int96_timestamps=True) + +# TODO faster parquet faker? gen one column(x rows) in one time + +KLAS_MAPPER = { + "csv": CSVWriter, + # "json": JSONWriter, + "parquet": ParquetWriter, + # "deltalake": DeltaLakeWriter +} + +def fake_file(num_rows, fmt, output, columns, fake_types): + print(f'generate {output}') + # columns [[c,t], [c,t,...]] + headers = [ c[0] for c in columns ] + if fmt == 'csv': + with open(output, mode='w', newline='') as file: + writer = KLAS_MAPPER.get(fmt)(file, headers, output) + fake_write(writer, num_rows, fake_types) + elif fmt == 'parquet': + import sys + writer = ParquetWriter(sys.stdout, headers, output, [c[1] for c in columns]) + fake_write(writer, num_rows, fake_types) + else: + assert False, f"{fmt} unsupported" + writer.close() + + +@click.command() +@click.option("--num-files", "-nf", default=1, help="Number of files") +@click.option("--num-rows", "-n", default=1, help="Number of rows per file") +@click.option("--fmt", "-f", type=click.Choice(["csv", "json", "parquet"]), default="parquet", help="Format of the output") +@click.option("--output", "-o", type=click.Path(writable=True), help='output dir') +@click.option("--sql", "-s", help="create table sql/table schema part", default=None) +def main(num_files, num_rows, fmt, output, sql): + if fmt in ['parquet'] and output is None: + raise click.BadArgumentUsage("parquet formats requires --output/-o filename parameter.") + + # openmldb create table may has some problem, cut to simple style + create_table_sql = sql # 'CREATE TABLE users (id INTEGER NOT NULL, name VARCHAR, INDEX(foo=bar)) OPTIONS (type="kv")' + regex = r'CREATE TABLE (\w+) ?\((.*?)\)' # no options + match = re.search(regex, create_table_sql, flags= re.IGNORECASE) + if not match: + cols = sql + else: + # columns, [index] + table = match.group(1) + cols_idx = match.group(2) + cols = re.sub(r',[ *]INDEX\((.*)', '', cols_idx, flags= re.IGNORECASE) + # parse schema from cols is enough, just use item[0]&[1] name&type + cols = [ [c[0], c[1].lower()] for c in (c.strip().split(' ') for c in cols.split(',')) ] + print(cols) + # sql types to faker provider + def type_converter(sql_type): + ranges = { + "int32": {"min_value": -2**31, "max_value": 2**31-1}, + "int64": {"min_value": -2**63, "max_value": 2**63-1}, + "int16": {"min_value": -2**15, "max_value": 2**15-1}, + + "float": {}, + "double": {}, + } + if sql_type.startswith('int') or sql_type in ['bigint', 'smallint']: + if sql_type == 'bigint': sql_type = 'int64' + if sql_type == 'smallint': sql_type = 'int16' + if sql_type == 'int': sql_type = 'int32' + return 'pyint', ranges[sql_type] + if sql_type in ['varchar', 'string']: + # TODO(hw): set max length + return 'pystr', {} + if sql_type in ['date', 'timestamp']: + return 'iso8601', {} + if sql_type in ['float', 'double']: + return 'pyfloat', ranges[sql_type] + return 'py' + sql_type, {} + + types = [ (type_converter(c[1])) for c in cols ] + print(types) + os.makedirs(output, exist_ok=True) + + import time + start = time.time() + for i in range(num_files): + fake_file(num_rows, fmt, f'{output}/{int(start)}-{i}.{fmt}', cols, types) + elap = time.time() - start + print(f"elap {elap/60}min") + +if __name__ == '__main__': + main() diff --git a/demo/usability_testing/demo_setup.sh b/demo/usability_testing/demo_setup.sh new file mode 100644 index 00000000000..f65d322d0a6 --- /dev/null +++ b/demo/usability_testing/demo_setup.sh @@ -0,0 +1,9 @@ +#!/bin/bash +set -ex +pip3 install faker pandas numpy click pyarrow +echo "mock datat t1,t2" +python3 data_mocker.py -s "create table t1(c1 int, c2 string)" -o /tmp/openmldb_test/t1/ -nf 10 -n 1000 -f csv +python3 data_mocker.py -s "create table t1(c1 int, c2 string)" -o /tmp/openmldb_test/t2/ -nf 10 -n 1000 +echo "setup offline test script" +sed "s##file:///tmp/openmldb_test#" offline_test.sql.template > offline_test.sql +sed -i'' "s##file:///tmp/openmldb_testout#" offline_test.sql diff --git a/demo/usability_testing/demo_test.sh b/demo/usability_testing/demo_test.sh new file mode 100644 index 00000000000..f706d7f05bb --- /dev/null +++ b/demo/usability_testing/demo_test.sh @@ -0,0 +1,26 @@ +#!/bin/bash +set -ex + +echo "start demo test" +echo "simple test" +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --interactive=false < simple_test.sql + +echo "offline test with mocked data" +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --interactive=false < offline_test.sql +OUT1=$(wc -l /tmp/openmldb_testout/t1_deep/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}') +OUT2=$(wc -l /tmp/openmldb_testout/t1_soft/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}') +OUT3=$(wc -l /tmp/openmldb_testout/t2_deep/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}') +# _double should be 2*total_row_count +OUT4=$(wc -l /tmp/openmldb_testout/t1_double/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}') +OUT5=$(wc -l /tmp/openmldb_testout/t2_double/*.csv | grep -v total | awk '{sum+=$1-1}END{print sum}') +if [ "$OUT1,$OUT2,$OUT3,$OUT4,$OUT5" != "10000,10000,10000,20000,20000" ]; then + echo "offline test failed, $OUT1,$OUT2,$OUT3,$OUT4,$OUT5" + exit 1 +fi + +echo "udf test" +curl -SLO https://openmldb.ai/download/testing/libtest_udf.so +cp libtest_udf.so /tmp/openmldb/tablet-1/udf +cp libtest_udf.so /tmp/openmldb/tablet-2/udf +cp libtest_udf.so /work/openmldb/taskmanager/bin/udf +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --interactive=false < udf_test.sql diff --git a/demo/usability_testing/offline_test.sql.template b/demo/usability_testing/offline_test.sql.template new file mode 100644 index 00000000000..c0e70c6baa6 --- /dev/null +++ b/demo/usability_testing/offline_test.sql.template @@ -0,0 +1,39 @@ +create database if not exists offline_test; +use offline_test; +drop table if exists t1; +create table t1(c1 int, c2 string); +/* offline load test, still use getDeepCopy when drop soft, so it'll get ERROR Get unsupported file path, fix later */ +set @@execute_mode='offline'; +set @@sync_job=true; +-- deep copy +load data infile '/t1' into table t1; +set @@sync_job=false; +select * from t1; +set @@sync_job=true; +select * from t1 into outfile '/t1_deep' options(mode='overwrite'); +-- rewrite offline storage, soft csv +load data infile '/t1' into table t1 options(deep_copy=false, mode='overwrite'); +select * from t1 into outfile '/t1_soft' options(mode='overwrite'); +-- add a soft path, csv too +alter table t1 add offline_path '/t1_deep'; +select * from t1 into outfile '/t1_double' options(mode='overwrite'); + +drop table if exists t2; +create table t2 like parquet '/t2'; +set @@sync_job=true; +load data infile '/t2' into table t2 options(format='parquet'); +select * from t2 into outfile '/t2_deep' options(mode='overwrite'); +alter table t2 add offline_path '/t2'; +select * from t2 into outfile '/t2_double' options(mode='overwrite'); + +/* online load test */ +set @@execute_mode='online'; +load data infile '/t1' into table t1 options(mode='append'); +show table status; +load data infile '/t1' into table t1 options(mode='append'); +show table status; + +/*check outfile later, so the table can be droped, but Get unsupported file path in 0.8.2 onebox, will be fixed in new version*/ +drop table t1; +drop table t2; +drop database offline_test; diff --git a/demo/usability_testing/simple_test.sql b/demo/usability_testing/simple_test.sql new file mode 100644 index 00000000000..310482fba86 --- /dev/null +++ b/demo/usability_testing/simple_test.sql @@ -0,0 +1,28 @@ +create database if not exists simple_test; +use simple_test; +drop table if exists t1; +create table t1(c1 int, c2 string); +set @@execute_mode='online'; +insert into t1 values (1, 'a'),(2,'b'); +select * from t1; + +/*test deploy and drop*/ +deploy d1 select * from t1; +drop deployment d1; +/*async op, drop later*/ +create index new_idx on t1(c2) options (ttl_type=absolute, ttl=30d); + +/*empty select in offline, just to test running jobs*/ +use simple_test; +set @@execute_mode='offline'; +select * from t1; +set @@sync_job=true; +select * from t1; + +show jobs; +show components; +show jobs from nameserver; +/*after a little, index should be added, drop is sync*/ +drop index t1.new_idx; +drop table t1; +drop database simple_test; diff --git a/demo/usability_testing/udf_test.sql b/demo/usability_testing/udf_test.sql new file mode 100644 index 00000000000..66ec9db7c9d --- /dev/null +++ b/demo/usability_testing/udf_test.sql @@ -0,0 +1,17 @@ +create database udf_test; +use udf_test; +create table t1(c1 int, c2 string); +create function cut2(x STRING) RETURNS STRING OPTIONS (FILE='libtest_udf.so'); +create aggregate function special_sum(x BIGINT) RETURNS BIGINT OPTIONS (FILE='libtest_udf.so'); +create aggregate function third(x BIGINT) RETURNS BIGINT OPTIONS (FILE='libtest_udf.so', ARG_NULLABLE=true, RETURN_NULLABLE=true); +/* only test cut2 */ +set @@execute_mode='offline'; +select cut2(c2) from t1; +set @@execute_mode='online'; +insert into t1 values (1, 'abcd'),(2,'efgh'); +select cut2(c2) from t1; +drop function cut2; +drop function special_sum; +drop function third; +drop table t1; +drop database udf_test; From e2dd0a581ed211056cb764d10c8dcff0007f50e3 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Sat, 12 Aug 2023 14:21:49 +0800 Subject: [PATCH 021/111] feat!: rm monitoring source (#3435) move to https://github.com/4paradigm/openmldb-exporter --- .github/workflows/monitoring.yml | 84 - monitoring/.env | 2 - monitoring/.gitignore | 2 - monitoring/README.md | 150 +- monitoring/docker-compose.yml | 132 - monitoring/openmldb_exporter/__init__.py | 8 - .../openmldb_exporter/collector/__init__.py | 45 - .../openmldb_exporter/collector/collectors.py | 176 - .../collector/configstore.py | 73 - .../openmldb_exporter/collector/metrics.py | 118 - monitoring/openmldb_exporter/exporter.py | 73 - monitoring/openmldb_mixin/.gitignore | 3 - monitoring/openmldb_mixin/Makefile | 23 - monitoring/openmldb_mixin/README.md | 29 - monitoring/openmldb_mixin/mixin.libsonnet | 5 - .../openmldb_mixin/openmldb_dashboard.json | 4015 ----------------- .../openmldb_mixin/prometheus_example.yml | 53 - monitoring/poetry.lock | 1231 ----- monitoring/prod.Dockerfile | 10 - monitoring/prod.env | 2 - monitoring/pyproject.toml | 39 - monitoring/res/prometheus.yml | 46 - monitoring/src.Dockerfile | 16 - monitoring/test.Dockerfile | 7 - monitoring/tests/conftest.py | 42 - monitoring/tests/test_exporter.py | 204 - monitoring/tests/test_prometheus.py | 15 - 27 files changed, 2 insertions(+), 6601 deletions(-) delete mode 100644 .github/workflows/monitoring.yml delete mode 100644 monitoring/.env delete mode 100644 monitoring/.gitignore delete mode 100644 monitoring/docker-compose.yml delete mode 100644 monitoring/openmldb_exporter/__init__.py delete mode 100644 monitoring/openmldb_exporter/collector/__init__.py delete mode 100644 monitoring/openmldb_exporter/collector/collectors.py delete mode 100644 monitoring/openmldb_exporter/collector/configstore.py delete mode 100644 monitoring/openmldb_exporter/collector/metrics.py delete mode 100644 monitoring/openmldb_exporter/exporter.py delete mode 100644 monitoring/openmldb_mixin/.gitignore delete mode 100644 monitoring/openmldb_mixin/Makefile delete mode 100644 monitoring/openmldb_mixin/README.md delete mode 100644 monitoring/openmldb_mixin/mixin.libsonnet delete mode 100644 monitoring/openmldb_mixin/openmldb_dashboard.json delete mode 100644 monitoring/openmldb_mixin/prometheus_example.yml delete mode 100644 monitoring/poetry.lock delete mode 100644 monitoring/prod.Dockerfile delete mode 100644 monitoring/prod.env delete mode 100644 monitoring/pyproject.toml delete mode 100644 monitoring/res/prometheus.yml delete mode 100644 monitoring/src.Dockerfile delete mode 100644 monitoring/test.Dockerfile delete mode 100644 monitoring/tests/conftest.py delete mode 100644 monitoring/tests/test_exporter.py delete mode 100644 monitoring/tests/test_prometheus.py diff --git a/.github/workflows/monitoring.yml b/.github/workflows/monitoring.yml deleted file mode 100644 index 1df2e89c0b8..00000000000 --- a/.github/workflows/monitoring.yml +++ /dev/null @@ -1,84 +0,0 @@ -name: monitoring integration test - -on: - push: - branches: - - main - paths: - - '.github/workflows/monitoring.yml' - - 'monitoring/**' - pull_request: - paths: - - '.github/workflows/monitoring.yml' - - 'monitoring/**' - workflow_dispatch: - -permissions: - checks: write - pull-requests: write - -jobs: - src-test: - runs-on: ubuntu-latest - - steps: - - uses: actions/checkout@v3 - - - name: Set up QEMU - uses: docker/setup-qemu-action@v2 - - - name: Setup Docker Buildx - uses: docker/setup-buildx-action@v2 - - - name: service up - working-directory: monitoring - run: | - docker compose --file docker-compose.yml up -d grafana - - - name: verbose services - working-directory: monitoring - # ensure all services is up - run: | - sleep 60 - docker compose --file docker-compose.yml ps -a - - - name: verbose exporter log - working-directory: monitoring - run: | - docker compose --file docker-compose.yml logs openmldb-exporter - - - name: run tests - working-directory: monitoring - run: | - docker compose --file docker-compose.yml up --no-recreate --exit-code-from testing testing - - - name: Publish Test Results - uses: EnricoMi/publish-unit-test-result-action@v2 - if: always() - with: - check_name: Monitoring integration test - comment_title: Monitoring integration test - files: | - ./monitoring/pytest.xml - - prod-test: - runs-on: ubuntu-latest - - steps: - - uses: actions/checkout@v3 - - - name: Set up QEMU - uses: docker/setup-qemu-action@v2 - - - name: Setup Docker Buildx - uses: docker/setup-buildx-action@v2 - - - name: service up - working-directory: monitoring - run: | - docker compose --file docker-compose.yml --env-file prod.env up -d grafana - - - name: run tests - working-directory: monitoring - run: | - docker compose --file docker-compose.yml --env-file prod.env up --no-recreate --exit-code-from testing testing diff --git a/monitoring/.env b/monitoring/.env deleted file mode 100644 index 69a6d7baaec..00000000000 --- a/monitoring/.env +++ /dev/null @@ -1,2 +0,0 @@ -OPENMLDB_VERSION=0.8.0 -ENV_TYPE=src diff --git a/monitoring/.gitignore b/monitoring/.gitignore deleted file mode 100644 index c6abda4d01b..00000000000 --- a/monitoring/.gitignore +++ /dev/null @@ -1,2 +0,0 @@ -dist/ -**/__pycache__/ diff --git a/monitoring/README.md b/monitoring/README.md index 88aa0a58751..b0c11e7f2f2 100644 --- a/monitoring/README.md +++ b/monitoring/README.md @@ -1,148 +1,2 @@ -# OpenMLDB Prometheus Exporter - -[![PyPI](https://img.shields.io/pypi/v/openmldb-exporter?label=openmldb-exporter)](https://pypi.org/project/openmldb-exporter/) -![PyPI - Python Version](https://img.shields.io/pypi/pyversions/openmldb-exporter) - -## Intro - -This directory contains - -1. OpenMLDB Exporter exposing prometheus metrics -2. OpenMLDB mixin provides well-configured examples for prometheus server and grafana dashboard - -## Requirements - -- A runnable OpenMLDB instance that is accessible from your network -- OpenMLDB version >= 0.5.0 -- Python >= 3.8 - - -## Setup - -For those want to try, simply install from pip, it will install the latest release: - -```bash -pip install openmldb-exporter -``` - -Then type - -```sh -openmldb-exporter -h -``` - -To see which flags should provided. - -Developers may refer [Development](#development) for how to setup openmldb exporter from source code. - - -## Development - -### Extra Requirements - -- Same in [Requirements](#requirements) -- [poetry](https://github.com/python-poetry/poetry) as build tool -- cmake (optional if want to test latest commit) - -### Build python SDK (Optional) - -openmldb exporter depends on [openmldb python SDK](https://pypi.org/project/openmldb/). For those introducing changes in python SDK or native code as well, this steps is required in order to take the latest Python SDK locally instead of the published one. - -#### 1. Build native code - -`cd` to root directory of OpenMLDB, and run: - -```bash -make SQL_PYSDK_ENABLE=ON -``` - -This will generate compiled shared library in `python` source directory. - -#### 2. Fix dependency list - -Back to openmldb exporter directory, modify `pyproject.toml` and make content like below: - -```toml -[tool.poetry.dependencies] -# ... -# openmldb = "^0.6.0" -# uncomment below to use openmldb sdk built from source -# set develop = true so changes in python will take effect immediately -openmldb = { path = "../python/", develop = true } -``` - -### Run - -1. Setup python dependencies: - - ```bash - poetry install - ``` - -2. Start openmldb exporter - - ```bash - poetry run openmldb-exporter - ``` - - You need pass necessary flags after `openmldb-exporter`. Run `poetry run openmldb-exporter --help` to get the help info - - ```bash - usage: openmldb-exporter [-h] [--log.level LOG.LEVEL] [--web.listen-address WEB.LISTEN_ADDRESS] - [--web.telemetry-path WEB.TELEMETRY_PATH] [--config.zk_root CONFIG.ZK_ROOT] - [--config.zk_path CONFIG.ZK_PATH] [--config.interval CONFIG.INTERVAL] - - OpenMLDB exporter - - optional arguments: - -h, --help show this help message and exit - --log.level LOG.LEVEL - config log level, default WARN - --web.listen-address WEB.LISTEN_ADDRESS - process listen port, default 8000 - --web.telemetry-path WEB.TELEMETRY_PATH - Path under which to expose metrics, default metrics - --config.zk_root CONFIG.ZK_ROOT - endpoint to zookeeper, default 127.0.0.1:6181 - --config.zk_path CONFIG.ZK_PATH - root path in zookeeper for OpenMLDB, default / - --config.interval CONFIG.INTERVAL - interval in seconds to pull metrics periodically, default 30.0 - ``` - -3. View the available metrics, you can pull through `curl` - - ```bash - curl http://127.0.0.1:8000/metrics - ``` - - A example output: - - ```bash - # HELP openmldb_connected_seconds_total duration for a component conncted time in seconds - # TYPE openmldb_connected_seconds_total counter - openmldb_connected_seconds_total{endpoint="172.17.0.15:9520",role="tablet"} 208834.70900011063 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9521",role="tablet"} 208834.70700001717 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9522",role="tablet"} 208834.71399998665 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9622",role="nameserver"} 208833.70000004768 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9623",role="nameserver"} 208831.70900011063 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9624",role="nameserver"} 208829.7230000496 - # HELP openmldb_connected_seconds_created duration for a component conncted time in seconds - # TYPE openmldb_connected_seconds_created gauge - openmldb_connected_seconds_created{endpoint="172.17.0.15:9520",role="tablet"} 1.6501813860467942e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9521",role="tablet"} 1.6501813860495396e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9522",role="tablet"} 1.650181386050323e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9622",role="nameserver"} 1.6501813860512116e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9623",role="nameserver"} 1.650181386051238e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9624",role="nameserver"} 1.6501813860512598e+09 - ``` - -## Release History - -- 0.7.1 - * Features - - Upgrade OpenMLDB SDK to v0.7 - - Upgrade prometheus client to 0.16 -- 0.6.0 - * Features - - Depends on OpenMLDB SDK v0.6 +Moved to [openmldb-exporter](https://github.com/4paradigm/openmldb-exporter) +---- diff --git a/monitoring/docker-compose.yml b/monitoring/docker-compose.yml deleted file mode 100644 index 7159856e998..00000000000 --- a/monitoring/docker-compose.yml +++ /dev/null @@ -1,132 +0,0 @@ -version: "3.8" - -services: - testing: - container_name: openmldb_test_client - build: - context: . - dockerfile: test.Dockerfile - volumes: - - ./:/usr/src/openmldb-exporter - command: - - bash - - -ce - - | - poetry install - poetry run pytest --junit-xml=./pytest.xml - depends_on: - - grafana - - grafana: - container_name: openmldb_grafana - image: grafana/grafana-oss:8.3.11 - ports: - - 3000 - depends_on: - - prometheus - - prometheus: - container_name: openmldb_prometheus - image: prom/prometheus:v2.43.0 - ports: - - 9090 - volumes: - - ./res/prometheus.yml:/etc/prometheus/prometheus.yml - depends_on: - - openmldb-exporter - - openmldb-api - - openmldb-exporter: - container_name: openmldb_exporter - build: - context: . - dockerfile: ${ENV_TYPE}.Dockerfile - ports: - - 8000 - command: - - "--config.zk_root=openmldb-zk:2181" - - "--config.zk_path=/openmldb" - restart: on-failure - depends_on: - - openmldb-ns1 - - openmldb-ns2 - - openmldb-api: - container_name: openmldb_api - image: ghcr.io/aceforeverd/openmldb-server:${OPENMLDB_VERSION} - restart: on-failure - command: - - "--role=apiserver" - - "--endpoint=openmldb-api:9527" - - "--zk_cluster=openmldb-zk:2181" - - "--zk_root_path=/openmldb" - ports: - - 9527 - depends_on: - - openmldb-ns1 - - openmldb-ns2 - - openmldb-zk: - container_name: openmldb_zk - image: zookeeper:3.4.14 - ports: - - 2181 - - openmldb-ns1: - container_name: openmldb_ns1 - image: ghcr.io/aceforeverd/openmldb-server:${OPENMLDB_VERSION} - command: - - "--role=nameserver" - - "--endpoint=openmldb-ns1:9527" - - "--zk_cluster=openmldb-zk:2181" - - "--zk_root_path=/openmldb" - depends_on: - - openmldb-tablet1 - - openmldb-tablet2 - - openmldb-tablet3 - - openmldb-ns2: - container_name: openmldb_ns2 - image: ghcr.io/aceforeverd/openmldb-server:${OPENMLDB_VERSION} - command: - - "--role=nameserver" - - "--endpoint=openmldb-ns2:9527" - - "--zk_cluster=openmldb-zk:2181" - - "--zk_root_path=/openmldb" - depends_on: - - openmldb-tablet1 - - openmldb-tablet2 - - openmldb-tablet3 - - openmldb-tablet1: - container_name: openmldb_tablet1 - image: ghcr.io/aceforeverd/openmldb-server:${OPENMLDB_VERSION} - command: - - "--role=tablet" - - "--endpoint=openmldb-tablet1:9527" - - "--zk_cluster=openmldb-zk:2181" - - "--zk_root_path=/openmldb" - depends_on: - - openmldb-zk - - openmldb-tablet2: - container_name: openmldb_tablet2 - image: ghcr.io/aceforeverd/openmldb-server:${OPENMLDB_VERSION} - command: - - "--role=tablet" - - "--endpoint=openmldb-tablet2:9527" - - "--zk_cluster=openmldb-zk:2181" - - "--zk_root_path=/openmldb" - depends_on: - - openmldb-zk - - openmldb-tablet3: - container_name: openmldb_tablet3 - image: ghcr.io/aceforeverd/openmldb-server:${OPENMLDB_VERSION} - command: - - "--role=tablet" - - "--endpoint=openmldb-tablet3:9527" - - "--zk_cluster=openmldb-zk:2181" - - "--zk_root_path=/openmldb" - depends_on: - - openmldb-zk diff --git a/monitoring/openmldb_exporter/__init__.py b/monitoring/openmldb_exporter/__init__.py deleted file mode 100644 index a8aa5c95c92..00000000000 --- a/monitoring/openmldb_exporter/__init__.py +++ /dev/null @@ -1,8 +0,0 @@ -""" -module openmldb_exporter -""" - -from importlib.metadata import version - -__version__ = version(__name__) - diff --git a/monitoring/openmldb_exporter/collector/__init__.py b/monitoring/openmldb_exporter/collector/__init__.py deleted file mode 100644 index 0b689c8796c..00000000000 --- a/monitoring/openmldb_exporter/collector/__init__.py +++ /dev/null @@ -1,45 +0,0 @@ -""" -module collector -""" -from openmldb_exporter.collector.metrics import ( - connected_seconds, - component_status, - table_rows, - table_partitions, - table_partitions_unalive, - table_replica, - table_disk, - table_memory, - deploy_response_time, - tablet_memory_application, - tablet_memory_actual, -) -from openmldb_exporter.collector.configstore import ( - ConfigStore -) - -from openmldb_exporter.collector.collectors import ( - TableStatusCollector, - DeployQueryStatCollector, - ComponentStatusCollector, - Collector, -) - -__all__ = [ - "connected_seconds", - "component_status", - "table_rows", - "table_partitions", - "table_partitions_unalive", - "table_replica", - "table_disk", - "table_memory", - "deploy_response_time", - "tablet_memory_application", - "tablet_memory_actual", - "ConfigStore", - "TableStatusCollector", - "DeployQueryStatCollector", - "ComponentStatusCollector", - "Collector", -] diff --git a/monitoring/openmldb_exporter/collector/collectors.py b/monitoring/openmldb_exporter/collector/collectors.py deleted file mode 100644 index 72e4b471dba..00000000000 --- a/monitoring/openmldb_exporter/collector/collectors.py +++ /dev/null @@ -1,176 +0,0 @@ -# Copyright 2022 4Paradigm -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -""" -Collector definations -""" - -from abc import ABC, abstractmethod -from sqlalchemy import (engine, Table, Column, MetaData, String, Integer) -from openmldb_exporter.collector import (connected_seconds, component_status, table_rows, table_partitions, - table_partitions_unalive, table_memory, table_disk, table_replica, deploy_response_time, - tablet_memory_application, tablet_memory_actual) -from urllib import request -import time - -import logging - - -class Collector(ABC): - ''' - ABC for OpenMLDB prometheus collectors - ''' - - @abstractmethod - def collect(self): - ''' - define how to collect and save metric values - ''' - pass - - -class SDKConnectable(object): - ''' - base class that hold a OpenMLDB connection through python sdk - ''' - _conn: engine.Connection - - def __init__(self, conn: engine.Connection): - self._conn = conn - - -class TableStatusCollector(Collector, SDKConnectable): - ''' - table statistics metric collector - ''' - - def collect(self): - rs = self._conn.execute("SHOW TABLE STATUS") - rows = rs.fetchall() - for row in rows: - logging.debug(row) - - # TODO: use storage_type - tid, tb_name, db_name, storage_type, rows, mem, disk, partition, partition_unalive, replica, *_ = row - tb_path = f"{db_name}_{tb_name}" - tid = int(tid) - table_rows.labels(tb_path, tid, storage_type).set(int(rows)) - table_partitions.labels(tb_path, tid, storage_type).set(int(partition)) - table_partitions_unalive.labels(tb_path, tid, storage_type).set(int(partition_unalive)) - table_replica.labels(tb_path, tid, storage_type).set(int(replica)) - table_memory.labels(tb_path, tid, storage_type).set(int(mem)) - table_disk.labels(tb_path, tid, storage_type).set(int(disk)) - - -class DeployQueryStatCollector(Collector, SDKConnectable): - ''' - deploy query statistics collector - ''' - _metadata: MetaData - _deploy_response_time: Table - - def __init__(self, conn: engine.Connection): - super().__init__(conn) - self._init_table_info() - - def collect(self): - rs = self._conn.execute(self._deploy_response_time.select()) - row = rs.fetchone() - acc_map = {} - while row is not None: - logging.debug(row) - - dp_name, time_second, count, total = row - time_second = float(time_second) - - # update bucket count - for i, bound in enumerate(deploy_response_time._upper_bounds): - if time_second <= bound: - # FIXME: handle Histogram reset correctly - deploy_response_time.labels(dp_name)._buckets[i].set(int(count)) - break - # update sum for each deploy - if dp_name in acc_map: - acc_map[dp_name] += float(total) - else: - acc_map[dp_name] = float(total) - row = rs.fetchone() - - # write sums - for key,value in acc_map.items(): - deploy_response_time.labels(key)._sum.set(value) - - def _init_table_info(self): - # sql parser do not recognize quoted string - self._metadata = MetaData(schema="INFORMATION_SCHEMA", bind=self._conn, quote_schema=False) - self._deploy_response_time = Table( - "DEPLOY_RESPONSE_TIME", - self._metadata, - Column("DEPLOY_NAME", String, quote=False), - Column("TIME", String, quote=False), - Column("COUNT", Integer, quote=False), - Column("TOTAL", String, quote=False), - quote=False, - ) - - -class ComponentStatusCollector(Collector, SDKConnectable): - ''' - component statistics and tablet memory collector - ''' - - def collect(self): - rs = self._conn.execute("SHOW COMPONENTS") - components = rs.fetchall() - for row in components: - logging.debug(row) - - endpoint = row[0] - role = row[1] - # connected time in millisecond - connected_time = int(row[2]) - connect_duration = int(time.time()) - connected_time / 1000 - status = row[3] - # set protected member for Counter is dangerous, though it seems the only way - connected_seconds.labels(endpoint, role)._value.set(connect_duration) - component_status.labels(endpoint, role).state(status) - - # collect tablet application memory - if role == "tablet": - app, actual = self._get_mem(f"http://{endpoint}/TabletServer/ShowMemPool") - tablet_memory_application.labels(endpoint).set(app) - tablet_memory_actual.labels(endpoint).set(actual) - - - def _get_mem(self, url: str): - memory_by_application = 0 - memory_acutal_used = 0 - # http request with 1s timeout - with request.urlopen(url, timeout=1) as resp: - for i in resp: - line = i.decode().strip() - if line.rfind("use by application") > 0: - try: - memory_by_application = int(line.split()[1]) - except ValueError as e: - memory_by_application = 0 - logging.error(e) - elif line.rfind("Actual memory used") > 0: - try: - memory_acutal_used = int(line.split()[2]) - except ValueError as e: - memory_acutal_used = 0 - logging.error(e) - else: - continue - return memory_by_application, memory_acutal_used diff --git a/monitoring/openmldb_exporter/collector/configstore.py b/monitoring/openmldb_exporter/collector/configstore.py deleted file mode 100644 index 00d62e98296..00000000000 --- a/monitoring/openmldb_exporter/collector/configstore.py +++ /dev/null @@ -1,73 +0,0 @@ -# Copyright 2022 4Paradigm -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -""" -exporter configuration parse and management -""" - -import argparse -import logging - - -class ConfigStore(object): - ''' - class to init a ArgumentParser and store all exporter configurations - ''' - - _args: argparse.Namespace - log_level: str - zk_root: str - zk_path: str - listen_port: int - telemetry_path: str - pull_interval: float - - def __init__(self): - parser = argparse.ArgumentParser(description="OpenMLDB exporter") - parser.add_argument("--log.level", type=str, default="WARNING", help="config log level") - parser.add_argument("--web.listen-address", type=int, default=8000, help="process listen port") - parser.add_argument("--web.telemetry-path", - type=str, - default="metrics", - help="Path under which to expose metrics") - parser.add_argument("--config.zk_root", type=str, default="127.0.0.1:6181", help="endpoint to zookeeper") - parser.add_argument("--config.zk_path", type=str, default="/", help="root path in zookeeper for OpenMLDB") - parser.add_argument("--config.interval", - type=float, - default=30.0, - help="interval in seconds to pull metrics periodically") - self._args = parser.parse_args() - self._store_cfgs() - - def _get_cfg(self, key: str): - ''' - key fetching that handles key whose value may contains literal dot('.') - ''' - val = self._args.__dict__.get(key) - if val is None: - raise KeyError(f"value for {key} not exist") - return val - - def _store_cfgs(self): - self.log_level = self._get_cfg("log.level") - self.zk_root = self._get_cfg("config.zk_root") - self.zk_path = self._get_cfg("config.zk_path") - self.listen_port = self._get_cfg("web.listen_address") - self.telemetry_path = self._get_cfg("web.telemetry_path") - self.pull_interval = self._get_cfg("config.interval") - - def get_log_level(self): - numeric_level = getattr(logging, self.log_level.upper(), None) - if not isinstance(numeric_level, int): - raise ValueError(f"Invalid log level: {self.log_level}") - return numeric_level diff --git a/monitoring/openmldb_exporter/collector/metrics.py b/monitoring/openmldb_exporter/collector/metrics.py deleted file mode 100644 index 4b8d788f031..00000000000 --- a/monitoring/openmldb_exporter/collector/metrics.py +++ /dev/null @@ -1,118 +0,0 @@ -# Copyright 2022 4Paradigm -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -""" -metric definatitons of OpenMLDB -""" - -from prometheus_client import Counter, Gauge, Histogram -from prometheus_client.metrics import Enum -from prometheus_client.utils import INF - -NAMESPACE = "openmldb" - -# labels -ENDPOINT = "endpoint" -ROLE = "role" -TABLE_ID = "tid" -TABLE_PATH = "table_path" -DEPLOY_PATH = "deploy_path" -STORAGE_MODE = "storage_mode" - -component_lables = [ENDPOINT, ROLE] -table_lables = [TABLE_PATH, TABLE_ID, STORAGE_MODE] - -connected_seconds = Counter("connected", - "duration for a component conncted time in seconds", - component_lables, - namespace=NAMESPACE, - unit="seconds") - -component_status = Enum( - "status", - "component status", - component_lables, - states=["online", "offline"], - namespace=NAMESPACE, -) - -tablet_memory_application = Gauge( - "tablet_memory_application", - "tablet application memory usage in bytes", - [ENDPOINT], - namespace=NAMESPACE, - unit="bytes", -) - -tablet_memory_actual = Gauge( - "tablet_memory_actual_used", - "actual memory used in bytes for tablet application", - [ENDPOINT], - namespace=NAMESPACE, - unit="bytes", -) - -table_rows = Gauge( - "table_rows", - "table row count", - table_lables, - namespace=NAMESPACE, -) - -table_partitions = Gauge( - "table_partitions", - "table partition count", - table_lables, - namespace=NAMESPACE, -) - -table_partitions_unalive = Gauge( - "table_partitions_unalive", - "table partition count that is unalive", - table_lables, - namespace=NAMESPACE, -) - -table_replica = Gauge( - "table_replica", - "table replica count", - table_lables, - namespace=NAMESPACE, -) - -table_disk = Gauge( - "table_disk", - "table disk usage in bytes", - table_lables, - namespace=NAMESPACE, - unit="bytes", -) - -table_memory = Gauge( - "table_memory", - "table memory usage in bytes", - table_lables, - namespace=NAMESPACE, - unit="bytes", -) - -BUCKETS = (1 / 1000000, 1 / 100000, 1 / 10000, 1 / 1000, 1 / 100, 1 / 10, 1, 10, 100, 1000, 10000, 100000, 1000000, INF) -deploy_response_time = Histogram( - "deploy_response_time", - "Deployment query response time histogram", - [DEPLOY_PATH], - subsystem="info_schema", - namespace=NAMESPACE, - unit="seconds", - buckets=BUCKETS, -) diff --git a/monitoring/openmldb_exporter/exporter.py b/monitoring/openmldb_exporter/exporter.py deleted file mode 100644 index 62d542965e1..00000000000 --- a/monitoring/openmldb_exporter/exporter.py +++ /dev/null @@ -1,73 +0,0 @@ -#!/usr/bin/env python3 -# -*- coding: utf-8 -*- - -# Copyright 2021 4Paradigm -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -""" -main entry of openmldb prometheus exporter -""" - -import os -import sys -import logging -from typing import (Iterable) - -from openmldb_exporter.collector import (ConfigStore, Collector, TableStatusCollector, DeployQueryStatCollector, - ComponentStatusCollector) -from prometheus_client.twisted import MetricsResource -from sqlalchemy import engine -from twisted.internet import reactor, task -from twisted.web.resource import Resource -from twisted.web.server import Site - -dir_name = os.path.dirname(os.path.realpath(sys.argv[0])) - - -def collect_task(collectors: Iterable[Collector]): - for collector in collectors: - try: - logging.info("%s collecting", type(collector).__qualname__) - collector.collect() - except: - logging.exception("error in %s", type(collector).__qualname__) - - -def main(): - cfg_store = ConfigStore() - - # assuming loglevel is bound to the string value obtained from the command line argument. - log_level = cfg_store.get_log_level() - logging.basicConfig(level=log_level) - - eng = engine.create_engine(f"openmldb:///?zk={cfg_store.zk_root}&zkPath={cfg_store.zk_path}") - conn = eng.connect() - - collectors = ( - TableStatusCollector(conn), - DeployQueryStatCollector(conn), - ComponentStatusCollector(conn), - ) - - task.LoopingCall(collect_task, collectors).start(cfg_store.pull_interval) - - root = Resource() - # child path must be bytes - root.putChild(cfg_store.telemetry_path.encode(), MetricsResource()) - factory = Site(root) - reactor.listenTCP(cfg_store.listen_port, factory) - reactor.run() - - -if __name__ == "__main__": - main() diff --git a/monitoring/openmldb_mixin/.gitignore b/monitoring/openmldb_mixin/.gitignore deleted file mode 100644 index 8f1e415fe1c..00000000000 --- a/monitoring/openmldb_mixin/.gitignore +++ /dev/null @@ -1,3 +0,0 @@ -/alerts.yaml -/rules.yaml -dashboards_out/ diff --git a/monitoring/openmldb_mixin/Makefile b/monitoring/openmldb_mixin/Makefile deleted file mode 100644 index f2643c2b789..00000000000 --- a/monitoring/openmldb_mixin/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -JSONNET_FMT := jsonnetfmt -n 2 --max-blank-lines 2 --string-style s --comment-style s - -default: build - -all: fmt lint build clean - -fmt: - find . -name 'vendor' -prune -o -name '*.libsonnet' -print -o -name '*.jsonnet' -print | \ - xargs -n 1 -- $(JSONNET_FMT) -i - -lint: - find . -name 'vendor' -prune -o -name '*.libsonnet' -print -o -name '*.jsonnet' -print | \ - while read f; do \ - $(JSONNET_FMT) "$$f" | diff -u "$$f" -; \ - done - - mixtool lint mixin.libsonnet - -build: - mixtool generate all mixin.libsonnet - -clean: - rm -rf dashboards_out alerts.yaml rules.yaml diff --git a/monitoring/openmldb_mixin/README.md b/monitoring/openmldb_mixin/README.md deleted file mode 100644 index 840b0d2a276..00000000000 --- a/monitoring/openmldb_mixin/README.md +++ /dev/null @@ -1,29 +0,0 @@ -# OpenMLDB Mixin - -A set of configurable, reusable, and extensible alert and rules for prometheus and grafana dashboard configuration - -## Requirement - -- Golang >= 1.17 -- [mixtool](https://github.com/monitoring-mixins/mixtool) -- [jsonnetfmt](https://github.com/google/go-jsonnet) - -```bash -$ go install github.com/monitoring-mixins/mixtool/cmd/mixtool@latest -$ go install github.com/google/go-jsonnet/cmd/jsonnetfmt@latest -``` - -## Build - -```bash -make -``` - -## Use - -1. A config example for prometheus server: `prometheus_example.yml` -2. Grafana dashboard available in `dashboards_out/openmldb_dashboard.json` - -You can also import grafana dashboard from grafana.com: [OpenMLDB dashboard](https://grafana.com/grafana/dashboards/17843). - -Refer [promtheus get started](https://prometheus.io/docs/prometheus/latest/getting_started/) and [grafana get started](https://grafana.com/docs/grafana/latest/getting-started/getting-started-prometheus/) on how to configure prometheus and grafana diff --git a/monitoring/openmldb_mixin/mixin.libsonnet b/monitoring/openmldb_mixin/mixin.libsonnet deleted file mode 100644 index 96629972164..00000000000 --- a/monitoring/openmldb_mixin/mixin.libsonnet +++ /dev/null @@ -1,5 +0,0 @@ -{ - grafanaDashboards: { - 'openmldb_dashboard.json': (import 'openmldb_dashboard.json'), - }, -} diff --git a/monitoring/openmldb_mixin/openmldb_dashboard.json b/monitoring/openmldb_mixin/openmldb_dashboard.json deleted file mode 100644 index b98530514c2..00000000000 --- a/monitoring/openmldb_mixin/openmldb_dashboard.json +++ /dev/null @@ -1,4015 +0,0 @@ -{ - 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# - "first_rules.yml" - # - "second_rules.yml" - -# A scrape configuration containing exactly one endpoint to scrape: -# Here it's Prometheus itself. -scrape_configs: - # The job name is added as a label `job=` to any timeseries scraped from this config. - - job_name: prometheus - static_configs: - - targets: - - localhost:9090 - - - job_name: node - # the job pull machine & OS related metrics, which exported by prometheus node_exporter - # refer https://github.com/prometheus/node_exporter for instructions and setup - - # metrics_path defaults to '/metrics' - # scheme defaults to 'http'. - - static_configs: - - targets: - - 172.17.0.15:9100 - - - job_name: openmldb_components - # job to pull component metrics from OpenMLDB like tablet/nameserver - # tweak the 'targets' list in 'static_configs' on your need - # every nameserver/tablet component endpoint should be added into targets - metrics_path: /brpc_metrics - static_configs: - - targets: - - 172.17.0.15:9622 - - - job_name: openmldb_exporter - 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-ENV OPENMLDB_EXPORTER_VERSION=0.7.1 - -RUN pip install --no-cache-dir openmldb-exporter==${OPENMLDB_EXPORTER_VERSION} - -EXPOSE 8000 - -# --config.zk_root and --config.zk_path must provided by user -ENTRYPOINT [ "/usr/local/bin/openmldb-exporter", "--log.level=INFO" ] diff --git a/monitoring/prod.env b/monitoring/prod.env deleted file mode 100644 index 5240755bece..00000000000 --- a/monitoring/prod.env +++ /dev/null @@ -1,2 +0,0 @@ -OPENMLDB_VERSION=0.8.0 -ENV_TYPE=prod diff --git a/monitoring/pyproject.toml b/monitoring/pyproject.toml deleted file mode 100644 index a1da7a748aa..00000000000 --- a/monitoring/pyproject.toml +++ /dev/null @@ -1,39 +0,0 @@ -[tool.poetry] -name = "openmldb-exporter" -version = "0.7.1" -description = "prometheus exporter for OpenMLDB" -authors = ["aceforeverd "] -license = "Apache-2.0" -readme = "README.md" -homepage = "https://openmldb.ai" -repository = "https://github.com/4paradigm/OpenMLDB" -documentation = "https://openmldb.ai/docs/zh/main/maintain/monitoring.html" -keywords = ["openmldb", "prometheus"] -classifiers = [ - "Programming Language :: Python :: 3.8", - "Topic :: System :: Monitoring", - "Topic :: Database", -] - -[tool.poetry.scripts] -openmldb-exporter = "openmldb_exporter.exporter:main" - -[tool.poetry.dependencies] -python = "^3.8" -prometheus-client = "^0.16.0" -openmldb = "^0.7.0" -# uncomment below to use openmldb sdk built from source -# set develop = true so changes in python will take effect immediately -# openmldb = { path = "../python/", develop = true } -Twisted = "^22.2.0" - -[tool.poetry.dev-dependencies] -pylint = "^2.17.3" - -[tool.poetry.group.dev.dependencies] -pytest = "^7.3.1" -requests = "^2.29.0" - -[build-system] -requires = ["poetry-core>=1.0.0"] -build-backend = "poetry.core.masonry.api" diff --git a/monitoring/res/prometheus.yml b/monitoring/res/prometheus.yml deleted file mode 100644 index fa6b1cc9e45..00000000000 --- a/monitoring/res/prometheus.yml +++ /dev/null @@ -1,46 +0,0 @@ -# my global config -global: - scrape_interval: 1m # Set the scrape interval, default is every 1 minute. - evaluation_interval: 1m # Evaluate rules, default is every 1 minute. - # scrape_timeout is set to the global default (10s). - -# Alertmanager configuration -alerting: - alertmanagers: - - static_configs: - - targets: - # - alertmanager:9093 - -# Load rules once and periodically evaluate them according to the global 'evaluation_interval'. -rule_files: - # - "first_rules.yml" - # - "second_rules.yml" - -# A scrape configuration containing exactly one endpoint to scrape: -# Here it's Prometheus itself. -scrape_configs: - # The job name is added as a label `job=` to any timeseries scraped from this config. - - job_name: prometheus - static_configs: - - targets: - - localhost:9090 - - - job_name: openmldb_components - # job to pull component metrics from OpenMLDB like tablet/nameserver - # tweak the 'targets' list in 'static_configs' on your need - # every nameserver/tablet component endpoint should be added into targets - metrics_path: /brpc_metrics - static_configs: - - targets: - - openmldb-ns1:9527 - - openmldb-ns2:9527 - - openmldb-tablet1:9527 - - openmldb-tablet2:9527 - - openmldb-tablet3:9527 - - - job_name: openmldb_exporter - # pull OpenMLDB DB-Level specific metric - # change the 'targets' value to your deployed OpenMLDB exporter endpoint - static_configs: - - targets: - - openmldb-exporter:8000 diff --git a/monitoring/src.Dockerfile b/monitoring/src.Dockerfile deleted file mode 100644 index 20fb04a76a4..00000000000 --- a/monitoring/src.Dockerfile +++ /dev/null @@ -1,16 +0,0 @@ -# openmldb exporter image from source code - -FROM python:3.11-slim-bullseye - -RUN pip install --no-cache-dir poetry - -WORKDIR /usr/src/openmldb-exporter - -COPY ./ /usr/src/openmldb-exporter - -RUN poetry install - -EXPOSE 8000 - -# --config.zk_root and --config.zk_path must provided by user -ENTRYPOINT [ "poetry", "run", "openmldb-exporter" ] diff --git a/monitoring/test.Dockerfile b/monitoring/test.Dockerfile deleted file mode 100644 index 4790b11108b..00000000000 --- a/monitoring/test.Dockerfile +++ /dev/null @@ -1,7 +0,0 @@ -FROM python:3.11-slim-bullseye - -RUN pip install --no-cache-dir poetry - -WORKDIR /usr/src/openmldb-exporter - -CMD [ "/bin/bash" ] diff --git a/monitoring/tests/conftest.py b/monitoring/tests/conftest.py deleted file mode 100644 index ca794d5adfe..00000000000 --- a/monitoring/tests/conftest.py +++ /dev/null @@ -1,42 +0,0 @@ -import pytest -from sqlalchemy import engine - - -def pytest_addoption(parser): - parser.addoption("--zk_root", action="store", default="openmldb-zk:2181", help="endpoint to zookeeper") - parser.addoption("--zk_path", action="store", default="/openmldb", help="root path in zookeeper for OpenMLDB") - parser.addoption("--url", - action="store", - default="http://openmldb-exporter:8000/metrics", - help="openmldb exporter pull url") - parser.addoption("--api", action="store", default="http://openmldb-api:9527", help="openmldb apiserver url") - parser.addoption("--prom", action="store", default="http://prometheus:9090", help="prometheus url") - - -@pytest.fixture(scope="session") -def conn(request): - zk_root = request.config.getoption("--zk_root") - zk_path = request.config.getoption("--zk_path") - - eng = engine.create_engine(f"openmldb:///?zk={zk_root}&zkPath={zk_path}") - conn = eng.connect() - # default online mode - conn.execute("set session execute_mode = 'online'") - # enable deploy response time - conn.execute("set global deploy_stats = 'on'") - return conn - - -@pytest.fixture(scope="session") -def global_url(request): - return request.config.getoption("--url") - - -@pytest.fixture(scope="session") -def api_url(request): - return request.config.getoption("--api") - - -@pytest.fixture(scope="session") -def prom_url(request): - return request.config.getoption("--prom") diff --git a/monitoring/tests/test_exporter.py b/monitoring/tests/test_exporter.py deleted file mode 100644 index b7d35c19185..00000000000 --- a/monitoring/tests/test_exporter.py +++ /dev/null @@ -1,204 +0,0 @@ -import requests - -from prometheus_client.parser import text_string_to_metric_families -import time - -import random - - -def test_components_online(global_url): - # Make a request to your application to get the Prometheus metrics - response = requests.get(global_url) - - # Parse the metrics from the response - metrics = text_string_to_metric_families(response.text) - - ns_cnt = 0 - tb_cnt = 0 - # Assert that the metrics are as expected - for metric in metrics: - # all components online - if metric.name == "openmldb_status": - for sample in metric.samples: - if sample.value == 1.0: - if sample.labels["role"] == "nameserver": - ns_cnt += 1 - elif sample.labels["role"] == "tablet": - tb_cnt += 1 - - assert sample.labels["openmldb_status"] == "online" - - assert ns_cnt == 2 - assert tb_cnt == 3 - - -def test_tablet_mem(global_url): - response = requests.get(global_url) - - metrics = text_string_to_metric_families(response.text) - - app_cnt = 0 - actual_cnt = 0 - for metric in metrics: - if metric.name == "openmldb_tablet_memory_application_bytes": - for sample in metric.samples: - assert sample.value > 0 - app_cnt += 1 - elif metric.name == "openmldb_tablet_memory_actual_used_bytes": - for sample in metric.samples: - assert sample.value > 0 - actual_cnt += 1 - - assert app_cnt == 3 - assert actual_cnt == 3 - - -def test_table_status(global_url, conn): - response = requests.get(global_url) - - metrics = text_string_to_metric_families(response.text) - - metric_name_to_len_dict = { - "openmldb_table_rows": 0, - "openmldb_table_partitions": 0, - "openmldb_table_replica": 0, - "openmldb_table_disk_bytes": 0, - "openmldb_table_memory_bytes": 0 - } - - metric_expect_value_dict = { - "openmldb_table_rows": 3, - "openmldb_table_partitions": 8, # default value - "openmldb_table_replica": 3, - } - - # before: no tables - for metric in metrics: - if metric.name in list(metric_name_to_len_dict.keys()): - metric_name_to_len_dict[metric.name] = len(metric.samples) - - # new table - db = "db" + str(int(time.time())) - tb = "tb" + str(int(time.time())) - conn.execute("create database " + db) - conn.execute("use " + db) - conn.execute("create table " + tb + " (id int, val string)") - conn.execute("insert into " + tb + " values (1, '100')") - conn.execute("insert into " + tb + " values (2, '200')") - conn.execute("insert into " + tb + " values (3, '300')") - - # wait for metric pull - time.sleep(60) - - response = requests.get(global_url) - metrics = text_string_to_metric_families(response.text) - - for metric in metrics: - if metric.name in list(metric_name_to_len_dict.keys()): - # one more series - assert len(metric.samples) == metric_name_to_len_dict[metric.name] + 1 - - for sample in metric.samples: - if sample.labels["table_path"] == db + "_" + tb: - if metric.name in list(metric_expect_value_dict.keys()): - # rows, partition, replica - assert sample.value == metric_expect_value_dict[metric.name], f"{sample}" - elif metric.name == "openmldb_table_memory_bytes": - # memory bytes - assert sample.value > 0, f"{sample}" - elif metric.name == "openmldb_table_disk_bytes": - assert sample.value == 0, f"{sample}" - - assert sample.labels["storage_mode"] == "memory", f"{sample}" - - -def test_connected_seconds(global_url): - response = requests.get(global_url) - metrics = text_string_to_metric_families(response.text) - - cnt = 0 - ns_cnt = 0 - tablet_cnt = 0 - for metric in metrics: - if metric.name == "openmldb_connected_seconds": - cnt += 1 - for sample in metric.samples: - if sample.labels["role"] == "tablet": - tablet_cnt += 1 - elif sample.labels["role"] == "nameserver": - ns_cnt += 1 - assert sample.value > 0.0 - - assert cnt == 1 - assert ns_cnt == 2 - assert tablet_cnt == 3 - - -BUCKET_CNT_EACH_DEPLOY = 14 -DEPLOY_SAMPLE_CNT_EACH_DEPLOY = BUCKET_CNT_EACH_DEPLOY + 1 + 1 -DEPLOY_METRIC_NAME = "openmldb_info_schema_deploy_response_time_seconds" -DEPLOY_METRIC_NAME_BUCKET = DEPLOY_METRIC_NAME + "_bucket" -DEPLOY_METRIC_NAME_COUNT = DEPLOY_METRIC_NAME + "_count" -DEPLOY_METRIC_NAME_SUM = DEPLOY_METRIC_NAME + "_sum" - - -def test_deploy_response_time(global_url, conn, api_url): - response = requests.get(global_url) - metrics = text_string_to_metric_families(response.text) - - old_deploy_sample_cnt = 0 - for metric in metrics: - if metric.name == DEPLOY_METRIC_NAME: - old_deploy_sample_cnt = len(metric.samples) - - db = "db" + str(int(time.time())) - tb = "tb" + str(int(time.time())) - dp = "dp" + str(int(time.time())) - conn.execute("create database " + db) - conn.execute("use " + db) - conn.execute(f"create table {tb} (id int, val string, ts timestamp)") - conn.execute( - f"deploy {dp} select id, count(val) over w as cnt from {tb} window w as (partition by id order by ts rows_range between 2s preceding and current row)" - ) - - post_ep = f"{api_url}/dbs/{db}/deployments/{dp}" - post_data = {"input": [[1, "12", 1000]]} - - deploy_cnt = random.randint(5, 100) - - for _ in range(deploy_cnt): - try: - res = requests.post(post_ep, json=post_data, timeout=5) - assert res.status_code == 200, f"{res}" - except Exception as e: - assert False, f"apiserver is down: {e}" - - time.sleep(60) - - response = requests.get(global_url) - metrics = text_string_to_metric_families(response.text) - - new_bucket = 0 - new_cnt = 0 - new_sum = 0 - new_cnt_value = 0 - for metric in metrics: - print(metric) - - if metric.name == DEPLOY_METRIC_NAME: - assert len(metric.samples) == old_deploy_sample_cnt + DEPLOY_SAMPLE_CNT_EACH_DEPLOY - - for sample in metric.samples: - if sample.labels["deploy_path"] == db + "." + dp: - if sample.name == DEPLOY_METRIC_NAME_BUCKET: - new_bucket += 1 - elif sample.name == DEPLOY_METRIC_NAME_COUNT: - new_cnt += 1 - new_cnt_value = sample.value - elif sample.name == DEPLOY_METRIC_NAME_SUM: - new_sum += 1 - - assert new_cnt_value == deploy_cnt - assert new_cnt == 1 - assert new_sum == 1 - assert new_bucket == BUCKET_CNT_EACH_DEPLOY diff --git a/monitoring/tests/test_prometheus.py b/monitoring/tests/test_prometheus.py deleted file mode 100644 index fe28fee7a95..00000000000 --- a/monitoring/tests/test_prometheus.py +++ /dev/null @@ -1,15 +0,0 @@ -import requests - - -# server is healthy itself -def test_prometheus_healthy(prom_url): - response = requests.get(f"{prom_url}/-/healthy") - assert response.status_code == 200 - - -def test_prometheus_targets(prom_url): - response = requests.get(f"{prom_url}/api/v1/targets") - response_json = response.json() - - for target in response_json["data"]["activeTargets"]: - assert target["health"] == "up", f"Target is {target}" From e48cac9d788ba677a4267a26cece984b82fc15de Mon Sep 17 00:00:00 2001 From: HuangWei Date: Tue, 15 Aug 2023 13:52:47 +0800 Subject: [PATCH 022/111] fix: kafka connector dependency (#3408) openmldb-jdbc needs commons-io, so pack it --- .../online_datasources/kafka_connector_demo.md | 6 ++++++ extensions/kafka-connect-jdbc/DEVELOP.md | 17 +++++++++++++++++ extensions/kafka-connect-jdbc/pom.xml | 2 +- 3 files changed, 24 insertions(+), 1 deletion(-) diff --git a/docs/zh/integration/online_datasources/kafka_connector_demo.md b/docs/zh/integration/online_datasources/kafka_connector_demo.md index 0d6ef42d266..e0cbdba9d6e 100644 --- a/docs/zh/integration/online_datasources/kafka_connector_demo.md +++ b/docs/zh/integration/online_datasources/kafka_connector_demo.md @@ -24,6 +24,12 @@ OpenMLDB Kafka Connector实现见[extensions/kafka-connect-jdbc](https://github. docker run -it -v `pwd`:/work/kafka 4pdosc/openmldb:0.8.2 bash ``` +### 注意事项 + +Timestamp列精度为ms,value配置为JsonConvertor,仅支持整型。根据消息的不同,可选配其他Convertor。 + +Connector可用于较早版本的Kafka Server,例如1.1.1,但注意旧版本的Kafka Broker可能并未默认开启“自动创建topic”,需要开启[此选项](https://kafka.apache.org/documentation/#brokerconfigs_auto.create.topics.enable)。 + ### 流程 使用connector的简要流程,如下图所示。我们接下来将详细介绍每一步。 diff --git a/extensions/kafka-connect-jdbc/DEVELOP.md b/extensions/kafka-connect-jdbc/DEVELOP.md index a3d93949549..5b809607dbc 100644 --- a/extensions/kafka-connect-jdbc/DEVELOP.md +++ b/extensions/kafka-connect-jdbc/DEVELOP.md @@ -28,6 +28,23 @@ auto.create=false ``` 请确保已经建好了OpenMLDB表。 +### Message样式 + +仅支持Json格式的Message,不用写schema,因此只需要`:`的Map,例如: +``` +{ + "c1_int16": 1, + "c2_int32": 2, + "c3_int64": 3, + "c4_float": 4.4, + "c5_double": 5.555, + "c6_boolean": true, + "c7_string": "c77777", + "c8_date": 19109, + "c9_timestamp": 1651051906000 +} +``` + ### message convert for auto schema auto schema开启后,主要逻辑在[BufferedRecords](src/main/java/io/confluent/connect/jdbc/sink/BufferedRecords.java) diff --git a/extensions/kafka-connect-jdbc/pom.xml b/extensions/kafka-connect-jdbc/pom.xml index d7a391b7c72..9633118e73b 100644 --- a/extensions/kafka-connect-jdbc/pom.xml +++ b/extensions/kafka-connect-jdbc/pom.xml @@ -172,7 +172,7 @@ commons-io commons-io ${commons-io.version} - test + org.mockito From f6dc23edc2bc9ad50f2f1098ff9b2f7f46edf61a Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Tue, 15 Aug 2023 15:48:21 +0800 Subject: [PATCH 023/111] feat(udf): add get_json_object (#3429) --- CPPLINT.cfg | 1 + contrib/simdjson/README | 2 +- contrib/simdjson/simdjson.cpp | 49569 +++++++--- contrib/simdjson/simdjson.h | 89838 ++++++++++++++---- hybridse/src/codegen/udf_ir_builder_test.cc | 70 + hybridse/src/udf/default_defs/json_defs.cc | 93 +- hybridse/src/udf/literal_traits.h | 7 +- 7 files changed, 111101 insertions(+), 28479 deletions(-) diff --git a/CPPLINT.cfg b/CPPLINT.cfg index be7f74a1e2d..331781c0fee 100644 --- a/CPPLINT.cfg +++ b/CPPLINT.cfg @@ -1,2 +1,3 @@ linelength=120 filter=-build/c++11,-build/include_subdir +exclude_files=contrib/* diff --git a/contrib/simdjson/README b/contrib/simdjson/README index 16007e4600b..528eeda2cfe 100644 --- a/contrib/simdjson/README +++ b/contrib/simdjson/README @@ -1 +1 @@ -smidjson v3.2.1: https://github.com/simdjson/simdjson/releases/tag/v3.2.1 +smidjson v3.2.2: https://github.com/simdjson/simdjson/releases/tag/v3.2.2 diff --git a/contrib/simdjson/simdjson.cpp b/contrib/simdjson/simdjson.cpp index bb265297e21..891ccb47eb2 100644 --- a/contrib/simdjson/simdjson.cpp +++ b/contrib/simdjson/simdjson.cpp @@ -1,1962 +1,4923 @@ -/* auto-generated on 2023-07-06 21:34:14 -0400. Do not edit! */ -/* begin file src/simdjson.cpp */ -#include "simdjson.h" +/* auto-generated on 2023-08-02 16:00:45 -0400. Do not edit! */ +/* including simdjson.cpp: */ +/* begin file simdjson.cpp */ +#define SIMDJSON_SRC_SIMDJSON_CPP + +/* including base.h: #include */ +/* begin file base.h */ +#ifndef SIMDJSON_SRC_BASE_H +#define SIMDJSON_SRC_BASE_H + +/* including simdjson/base.h: #include */ +/* begin file simdjson/base.h */ +/** + * @file Base declarations for all simdjson headers + * @private + */ +#ifndef SIMDJSON_BASE_H +#define SIMDJSON_BASE_H + +/* including simdjson/common_defs.h: #include "simdjson/common_defs.h" */ +/* begin file simdjson/common_defs.h */ +#ifndef SIMDJSON_COMMON_DEFS_H +#define SIMDJSON_COMMON_DEFS_H + +#include +/* including simdjson/compiler_check.h: #include "simdjson/compiler_check.h" */ +/* begin file simdjson/compiler_check.h */ +#ifndef SIMDJSON_COMPILER_CHECK_H +#define SIMDJSON_COMPILER_CHECK_H + +#ifndef __cplusplus +#error simdjson requires a C++ compiler +#endif -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_UNDESIRED_WARNINGS +#ifndef SIMDJSON_CPLUSPLUS +#if defined(_MSVC_LANG) && !defined(__clang__) +#define SIMDJSON_CPLUSPLUS (_MSC_VER == 1900 ? 201103L : _MSVC_LANG) +#else +#define SIMDJSON_CPLUSPLUS __cplusplus +#endif +#endif -/* begin file src/to_chars.cpp */ -#include -#include -#include -#include +// C++ 17 +#if !defined(SIMDJSON_CPLUSPLUS17) && (SIMDJSON_CPLUSPLUS >= 201703L) +#define SIMDJSON_CPLUSPLUS17 1 +#endif -namespace simdjson { -namespace internal { -/*! -implements the Grisu2 algorithm for binary to decimal floating-point -conversion. -Adapted from JSON for Modern C++ +// C++ 14 +#if !defined(SIMDJSON_CPLUSPLUS14) && (SIMDJSON_CPLUSPLUS >= 201402L) +#define SIMDJSON_CPLUSPLUS14 1 +#endif -This implementation is a slightly modified version of the reference -implementation which may be obtained from -http://florian.loitsch.com/publications (bench.tar.gz). -The code is distributed under the MIT license, Copyright (c) 2009 Florian -Loitsch. For a detailed description of the algorithm see: [1] Loitsch, "Printing -Floating-Point Numbers Quickly and Accurately with Integers", Proceedings of the -ACM SIGPLAN 2010 Conference on Programming Language Design and Implementation, -PLDI 2010 [2] Burger, Dybvig, "Printing Floating-Point Numbers Quickly and -Accurately", Proceedings of the ACM SIGPLAN 1996 Conference on Programming -Language Design and Implementation, PLDI 1996 -*/ -namespace dtoa_impl { +// C++ 11 +#if !defined(SIMDJSON_CPLUSPLUS11) && (SIMDJSON_CPLUSPLUS >= 201103L) +#define SIMDJSON_CPLUSPLUS11 1 +#endif -template -Target reinterpret_bits(const Source source) { - static_assert(sizeof(Target) == sizeof(Source), "size mismatch"); +#ifndef SIMDJSON_CPLUSPLUS11 +#error simdjson requires a compiler compliant with the C++11 standard +#endif - Target target; - std::memcpy(&target, &source, sizeof(Source)); - return target; -} +#endif // SIMDJSON_COMPILER_CHECK_H +/* end file simdjson/compiler_check.h */ +/* including simdjson/portability.h: #include "simdjson/portability.h" */ +/* begin file simdjson/portability.h */ +#ifndef SIMDJSON_PORTABILITY_H +#define SIMDJSON_PORTABILITY_H -struct diyfp // f * 2^e -{ - static constexpr int kPrecision = 64; // = q +#include +#include +#include +#include +#include +#ifndef _WIN32 +// strcasecmp, strncasecmp +#include +#endif - std::uint64_t f = 0; - int e = 0; +#ifdef _MSC_VER +#define SIMDJSON_VISUAL_STUDIO 1 +/** + * We want to differentiate carefully between + * clang under visual studio and regular visual + * studio. + * + * Under clang for Windows, we enable: + * * target pragmas so that part and only part of the + * code gets compiled for advanced instructions. + * + */ +#ifdef __clang__ +// clang under visual studio +#define SIMDJSON_CLANG_VISUAL_STUDIO 1 +#else +// just regular visual studio (best guess) +#define SIMDJSON_REGULAR_VISUAL_STUDIO 1 +#endif // __clang__ +#endif // _MSC_VER + +#if defined(__x86_64__) || defined(_M_AMD64) +#define SIMDJSON_IS_X86_64 1 +#elif defined(__aarch64__) || defined(_M_ARM64) +#define SIMDJSON_IS_ARM64 1 +#elif defined(__PPC64__) || defined(_M_PPC64) +#if defined(__ALTIVEC__) +#define SIMDJSON_IS_PPC64_VMX 1 +#endif // defined(__ALTIVEC__) +#else +#define SIMDJSON_IS_32BITS 1 + +#if defined(_M_IX86) || defined(__i386__) +#define SIMDJSON_IS_X86_32BITS 1 +#elif defined(__arm__) || defined(_M_ARM) +#define SIMDJSON_IS_ARM_32BITS 1 +#elif defined(__PPC__) || defined(_M_PPC) +#define SIMDJSON_IS_PPC_32BITS 1 +#endif - constexpr diyfp(std::uint64_t f_, int e_) noexcept : f(f_), e(e_) {} +#endif // defined(__x86_64__) || defined(_M_AMD64) +#ifndef SIMDJSON_IS_32BITS +#define SIMDJSON_IS_32BITS 0 +#endif - /*! - @brief returns x - y - @pre x.e == y.e and x.f >= y.f - */ - static diyfp sub(const diyfp &x, const diyfp &y) noexcept { +#if SIMDJSON_IS_32BITS +#ifndef SIMDJSON_NO_PORTABILITY_WARNING +#pragma message("The simdjson library is designed \ +for 64-bit processors and it seems that you are not \ +compiling for a known 64-bit platform. All fast kernels \ +will be disabled and performance may be poor. Please \ +use a 64-bit target such as x64, 64-bit ARM or 64-bit PPC.") +#endif // SIMDJSON_NO_PORTABILITY_WARNING +#endif // SIMDJSON_IS_32BITS + +#define SIMDJSON_CAT_IMPLEMENTATION_(a,...) a ## __VA_ARGS__ +#define SIMDJSON_CAT(a,...) SIMDJSON_CAT_IMPLEMENTATION_(a, __VA_ARGS__) + +#define SIMDJSON_STRINGIFY_IMPLEMENTATION_(a,...) #a SIMDJSON_STRINGIFY(__VA_ARGS__) +#define SIMDJSON_STRINGIFY(a,...) SIMDJSON_CAT_IMPLEMENTATION_(a, __VA_ARGS__) + +// this is almost standard? +#undef SIMDJSON_STRINGIFY_IMPLEMENTATION_ +#undef SIMDJSON_STRINGIFY +#define SIMDJSON_STRINGIFY_IMPLEMENTATION_(a) #a +#define SIMDJSON_STRINGIFY(a) SIMDJSON_STRINGIFY_IMPLEMENTATION_(a) + +// Our fast kernels require 64-bit systems. +// +// On 32-bit x86, we lack 64-bit popcnt, lzcnt, blsr instructions. +// Furthermore, the number of SIMD registers is reduced. +// +// On 32-bit ARM, we would have smaller registers. +// +// The simdjson users should still have the fallback kernel. It is +// slower, but it should run everywhere. - return {x.f - y.f, x.e}; - } +// +// Enable valid runtime implementations, and select SIMDJSON_BUILTIN_IMPLEMENTATION +// - /*! - @brief returns x * y - @note The result is rounded. (Only the upper q bits are returned.) - */ - static diyfp mul(const diyfp &x, const diyfp &y) noexcept { - static_assert(kPrecision == 64, "internal error"); +// We are going to use runtime dispatch. +#if SIMDJSON_IS_X86_64 +#ifdef __clang__ +// clang does not have GCC push pop +// warning: clang attribute push can't be used within a namespace in clang up +// til 8.0 so SIMDJSON_TARGET_REGION and SIMDJSON_UNTARGET_REGION must be *outside* of a +// namespace. +#define SIMDJSON_TARGET_REGION(T) \ + _Pragma(SIMDJSON_STRINGIFY( \ + clang attribute push(__attribute__((target(T))), apply_to = function))) +#define SIMDJSON_UNTARGET_REGION _Pragma("clang attribute pop") +#elif defined(__GNUC__) +// GCC is easier +#define SIMDJSON_TARGET_REGION(T) \ + _Pragma("GCC push_options") _Pragma(SIMDJSON_STRINGIFY(GCC target(T))) +#define SIMDJSON_UNTARGET_REGION _Pragma("GCC pop_options") +#endif // clang then gcc + +#endif // x86 + +// Default target region macros don't do anything. +#ifndef SIMDJSON_TARGET_REGION +#define SIMDJSON_TARGET_REGION(T) +#define SIMDJSON_UNTARGET_REGION +#endif - // Computes: - // f = round((x.f * y.f) / 2^q) - // e = x.e + y.e + q +// Is threading enabled? +#if defined(_REENTRANT) || defined(_MT) +#ifndef SIMDJSON_THREADS_ENABLED +#define SIMDJSON_THREADS_ENABLED +#endif +#endif - // Emulate the 64-bit * 64-bit multiplication: - // - // p = u * v - // = (u_lo + 2^32 u_hi) (v_lo + 2^32 v_hi) - // = (u_lo v_lo ) + 2^32 ((u_lo v_hi ) + (u_hi v_lo )) + - // 2^64 (u_hi v_hi ) = (p0 ) + 2^32 ((p1 ) + (p2 )) - // + 2^64 (p3 ) = (p0_lo + 2^32 p0_hi) + 2^32 ((p1_lo + - // 2^32 p1_hi) + (p2_lo + 2^32 p2_hi)) + 2^64 (p3 ) = - // (p0_lo ) + 2^32 (p0_hi + p1_lo + p2_lo ) + 2^64 (p1_hi + - // p2_hi + p3) = (p0_lo ) + 2^32 (Q ) + 2^64 (H ) = (p0_lo ) + - // 2^32 (Q_lo + 2^32 Q_hi ) + 2^64 (H ) - // - // (Since Q might be larger than 2^32 - 1) - // - // = (p0_lo + 2^32 Q_lo) + 2^64 (Q_hi + H) - // - // (Q_hi + H does not overflow a 64-bit int) - // - // = p_lo + 2^64 p_hi +// workaround for large stack sizes under -O0. +// https://github.com/simdjson/simdjson/issues/691 +#ifdef __APPLE__ +#ifndef __OPTIMIZE__ +// Apple systems have small stack sizes in secondary threads. +// Lack of compiler optimization may generate high stack usage. +// Users may want to disable threads for safety, but only when +// in debug mode which we detect by the fact that the __OPTIMIZE__ +// macro is not defined. +#undef SIMDJSON_THREADS_ENABLED +#endif +#endif - const std::uint64_t u_lo = x.f & 0xFFFFFFFFu; - const std::uint64_t u_hi = x.f >> 32u; - const std::uint64_t v_lo = y.f & 0xFFFFFFFFu; - const std::uint64_t v_hi = y.f >> 32u; - const std::uint64_t p0 = u_lo * v_lo; - const std::uint64_t p1 = u_lo * v_hi; - const std::uint64_t p2 = u_hi * v_lo; - const std::uint64_t p3 = u_hi * v_hi; +#if defined(__clang__) +#define SIMDJSON_NO_SANITIZE_UNDEFINED __attribute__((no_sanitize("undefined"))) +#elif defined(__GNUC__) +#define SIMDJSON_NO_SANITIZE_UNDEFINED __attribute__((no_sanitize_undefined)) +#else +#define SIMDJSON_NO_SANITIZE_UNDEFINED +#endif - const std::uint64_t p0_hi = p0 >> 32u; - const std::uint64_t p1_lo = p1 & 0xFFFFFFFFu; - const std::uint64_t p1_hi = p1 >> 32u; - const std::uint64_t p2_lo = p2 & 0xFFFFFFFFu; - const std::uint64_t p2_hi = p2 >> 32u; - std::uint64_t Q = p0_hi + p1_lo + p2_lo; +#if defined(__clang__) || defined(__GNUC__) +#if defined(__has_feature) +# if __has_feature(memory_sanitizer) +#define SIMDJSON_NO_SANITIZE_MEMORY __attribute__((no_sanitize("memory"))) +# endif // if __has_feature(memory_sanitizer) +#endif // defined(__has_feature) +#endif +// make sure it is defined as 'nothing' if it is unapplicable. +#ifndef SIMDJSON_NO_SANITIZE_MEMORY +#define SIMDJSON_NO_SANITIZE_MEMORY +#endif - // The full product might now be computed as - // - // p_hi = p3 + p2_hi + p1_hi + (Q >> 32) - // p_lo = p0_lo + (Q << 32) - // - // But in this particular case here, the full p_lo is not required. - // Effectively we only need to add the highest bit in p_lo to p_hi (and - // Q_hi + 1 does not overflow). +#if SIMDJSON_VISUAL_STUDIO +// This is one case where we do not distinguish between +// regular visual studio and clang under visual studio. +// clang under Windows has _stricmp (like visual studio) but not strcasecmp (as clang normally has) +#define simdjson_strcasecmp _stricmp +#define simdjson_strncasecmp _strnicmp +#else +// The strcasecmp, strncasecmp, and strcasestr functions do not work with multibyte strings (e.g. UTF-8). +// So they are only useful for ASCII in our context. +// https://www.gnu.org/software/libunistring/manual/libunistring.html#char-_002a-strings +#define simdjson_strcasecmp strcasecmp +#define simdjson_strncasecmp strncasecmp +#endif - Q += std::uint64_t{1} << (64u - 32u - 1u); // round, ties up +#if defined(NDEBUG) || defined(__OPTIMIZE__) || (defined(_MSC_VER) && !defined(_DEBUG)) +// If NDEBUG is set, or __OPTIMIZE__ is set, or we are under MSVC in release mode, +// then do away with asserts and use __assume. +#if SIMDJSON_VISUAL_STUDIO +#define SIMDJSON_UNREACHABLE() __assume(0) +#define SIMDJSON_ASSUME(COND) __assume(COND) +#else +#define SIMDJSON_UNREACHABLE() __builtin_unreachable(); +#define SIMDJSON_ASSUME(COND) do { if (!(COND)) __builtin_unreachable(); } while (0) +#endif - const std::uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32u); +#else // defined(NDEBUG) || defined(__OPTIMIZE__) || (defined(_MSC_VER) && !defined(_DEBUG)) +// This should only ever be enabled in debug mode. +#define SIMDJSON_UNREACHABLE() assert(0); +#define SIMDJSON_ASSUME(COND) assert(COND) - return {h, x.e + y.e + 64}; - } +#endif - /*! - @brief normalize x such that the significand is >= 2^(q-1) - @pre x.f != 0 - */ - static diyfp normalize(diyfp x) noexcept { +#endif // SIMDJSON_PORTABILITY_H +/* end file simdjson/portability.h */ - while ((x.f >> 63u) == 0) { - x.f <<= 1u; - x.e--; - } +namespace simdjson { +namespace internal { +/** + * @private + * Our own implementation of the C++17 to_chars function. + * Defined in src/to_chars + */ +char *to_chars(char *first, const char *last, double value); +/** + * @private + * A number parsing routine. + * Defined in src/from_chars + */ +double from_chars(const char *first) noexcept; +double from_chars(const char *first, const char* end) noexcept; +} - return x; - } +#ifndef SIMDJSON_EXCEPTIONS +#if __cpp_exceptions +#define SIMDJSON_EXCEPTIONS 1 +#else +#define SIMDJSON_EXCEPTIONS 0 +#endif +#endif - /*! - @brief normalize x such that the result has the exponent E - @pre e >= x.e and the upper e - x.e bits of x.f must be zero. - */ - static diyfp normalize_to(const diyfp &x, - const int target_exponent) noexcept { - const int delta = x.e - target_exponent; +} // namespace simdjson - return {x.f << delta, target_exponent}; - } -}; +#if defined(__GNUC__) + // Marks a block with a name so that MCA analysis can see it. + #define SIMDJSON_BEGIN_DEBUG_BLOCK(name) __asm volatile("# LLVM-MCA-BEGIN " #name); + #define SIMDJSON_END_DEBUG_BLOCK(name) __asm volatile("# LLVM-MCA-END " #name); + #define SIMDJSON_DEBUG_BLOCK(name, block) BEGIN_DEBUG_BLOCK(name); block; END_DEBUG_BLOCK(name); +#else + #define SIMDJSON_BEGIN_DEBUG_BLOCK(name) + #define SIMDJSON_END_DEBUG_BLOCK(name) + #define SIMDJSON_DEBUG_BLOCK(name, block) +#endif -struct boundaries { - diyfp w; - diyfp minus; - diyfp plus; -}; +// Align to N-byte boundary +#define SIMDJSON_ROUNDUP_N(a, n) (((a) + ((n)-1)) & ~((n)-1)) +#define SIMDJSON_ROUNDDOWN_N(a, n) ((a) & ~((n)-1)) + +#define SIMDJSON_ISALIGNED_N(ptr, n) (((uintptr_t)(ptr) & ((n)-1)) == 0) + +#if SIMDJSON_REGULAR_VISUAL_STUDIO + + #define simdjson_really_inline __forceinline + #define simdjson_never_inline __declspec(noinline) + + #define simdjson_unused + #define simdjson_warn_unused + + #ifndef simdjson_likely + #define simdjson_likely(x) x + #endif + #ifndef simdjson_unlikely + #define simdjson_unlikely(x) x + #endif + + #define SIMDJSON_PUSH_DISABLE_WARNINGS __pragma(warning( push )) + #define SIMDJSON_PUSH_DISABLE_ALL_WARNINGS __pragma(warning( push, 0 )) + #define SIMDJSON_DISABLE_VS_WARNING(WARNING_NUMBER) __pragma(warning( disable : WARNING_NUMBER )) + // Get rid of Intellisense-only warnings (Code Analysis) + // Though __has_include is C++17, it is supported in Visual Studio 2017 or better (_MSC_VER>=1910). + #ifdef __has_include + #if __has_include() + #include + #define SIMDJSON_DISABLE_UNDESIRED_WARNINGS SIMDJSON_DISABLE_VS_WARNING(ALL_CPPCORECHECK_WARNINGS) + #endif + #endif + + #ifndef SIMDJSON_DISABLE_UNDESIRED_WARNINGS + #define SIMDJSON_DISABLE_UNDESIRED_WARNINGS + #endif + + #define SIMDJSON_DISABLE_DEPRECATED_WARNING SIMDJSON_DISABLE_VS_WARNING(4996) + #define SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING + #define SIMDJSON_POP_DISABLE_WARNINGS __pragma(warning( pop )) + + #define SIMDJSON_PUSH_DISABLE_UNUSED_WARNINGS + #define SIMDJSON_POP_DISABLE_UNUSED_WARNINGS + +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + + #define simdjson_really_inline inline __attribute__((always_inline)) + #define simdjson_never_inline inline __attribute__((noinline)) + + #define simdjson_unused __attribute__((unused)) + #define simdjson_warn_unused __attribute__((warn_unused_result)) + + #ifndef simdjson_likely + #define simdjson_likely(x) __builtin_expect(!!(x), 1) + #endif + #ifndef simdjson_unlikely + #define simdjson_unlikely(x) __builtin_expect(!!(x), 0) + #endif + + #define SIMDJSON_PUSH_DISABLE_WARNINGS _Pragma("GCC diagnostic push") + // gcc doesn't seem to disable all warnings with all and extra, add warnings here as necessary + // We do it separately for clang since it has different warnings. + #ifdef __clang__ + // clang is missing -Wmaybe-uninitialized. + #define SIMDJSON_PUSH_DISABLE_ALL_WARNINGS SIMDJSON_PUSH_DISABLE_WARNINGS \ + SIMDJSON_DISABLE_GCC_WARNING(-Weffc++) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wall) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wconversion) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wextra) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wattributes) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wimplicit-fallthrough) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wnon-virtual-dtor) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wreturn-type) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wshadow) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused-parameter) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused-variable) + #else // __clang__ + #define SIMDJSON_PUSH_DISABLE_ALL_WARNINGS SIMDJSON_PUSH_DISABLE_WARNINGS \ + SIMDJSON_DISABLE_GCC_WARNING(-Weffc++) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wall) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wconversion) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wextra) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wattributes) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wimplicit-fallthrough) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wnon-virtual-dtor) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wreturn-type) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wshadow) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused-parameter) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused-variable) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wmaybe-uninitialized) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wformat-security) + #endif // __clang__ + + #define SIMDJSON_PRAGMA(P) _Pragma(#P) + #define SIMDJSON_DISABLE_GCC_WARNING(WARNING) SIMDJSON_PRAGMA(GCC diagnostic ignored #WARNING) + #if SIMDJSON_CLANG_VISUAL_STUDIO + #define SIMDJSON_DISABLE_UNDESIRED_WARNINGS SIMDJSON_DISABLE_GCC_WARNING(-Wmicrosoft-include) + #else + #define SIMDJSON_DISABLE_UNDESIRED_WARNINGS + #endif + #define SIMDJSON_DISABLE_DEPRECATED_WARNING SIMDJSON_DISABLE_GCC_WARNING(-Wdeprecated-declarations) + #define SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING SIMDJSON_DISABLE_GCC_WARNING(-Wstrict-overflow) + #define SIMDJSON_POP_DISABLE_WARNINGS _Pragma("GCC diagnostic pop") + + #define SIMDJSON_PUSH_DISABLE_UNUSED_WARNINGS SIMDJSON_PUSH_DISABLE_WARNINGS \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused) + #define SIMDJSON_POP_DISABLE_UNUSED_WARNINGS SIMDJSON_POP_DISABLE_WARNINGS + + + +#endif // MSC_VER + +#if defined(simdjson_inline) + // Prefer the user's definition of simdjson_inline; don't define it ourselves. +#elif defined(__GNUC__) && !defined(__OPTIMIZE__) + // If optimizations are disabled, forcing inlining can lead to significant + // code bloat and high compile times. Don't use simdjson_really_inline for + // unoptimized builds. + #define simdjson_inline inline +#else + // Force inlining for most simdjson functions. + #define simdjson_inline simdjson_really_inline +#endif -/*! -Compute the (normalized) diyfp representing the input number 'value' and its -boundaries. -@pre value must be finite and positive -*/ -template boundaries compute_boundaries(FloatType value) { +#if SIMDJSON_VISUAL_STUDIO + /** + * Windows users need to do some extra work when building + * or using a dynamic library (DLL). When building, we need + * to set SIMDJSON_DLLIMPORTEXPORT to __declspec(dllexport). + * When *using* the DLL, the user needs to set + * SIMDJSON_DLLIMPORTEXPORT __declspec(dllimport). + * + * Static libraries not need require such work. + * + * It does not matter here whether you are using + * the regular visual studio or clang under visual + * studio, you still need to handle these issues. + * + * Non-Windows systems do not have this complexity. + */ + #if SIMDJSON_BUILDING_WINDOWS_DYNAMIC_LIBRARY + // We set SIMDJSON_BUILDING_WINDOWS_DYNAMIC_LIBRARY when we build a DLL under Windows. + // It should never happen that both SIMDJSON_BUILDING_WINDOWS_DYNAMIC_LIBRARY and + // SIMDJSON_USING_WINDOWS_DYNAMIC_LIBRARY are set. + #define SIMDJSON_DLLIMPORTEXPORT __declspec(dllexport) + #elif SIMDJSON_USING_WINDOWS_DYNAMIC_LIBRARY + // Windows user who call a dynamic library should set SIMDJSON_USING_WINDOWS_DYNAMIC_LIBRARY to 1. + #define SIMDJSON_DLLIMPORTEXPORT __declspec(dllimport) + #else + // We assume by default static linkage + #define SIMDJSON_DLLIMPORTEXPORT + #endif - // Convert the IEEE representation into a diyfp. - // - // If v is denormal: - // value = 0.F * 2^(1 - bias) = ( F) * 2^(1 - bias - (p-1)) - // If v is normalized: - // value = 1.F * 2^(E - bias) = (2^(p-1) + F) * 2^(E - bias - (p-1)) +/** + * Workaround for the vcpkg package manager. Only vcpkg should + * ever touch the next line. The SIMDJSON_USING_LIBRARY macro is otherwise unused. + */ +#if SIMDJSON_USING_LIBRARY +#define SIMDJSON_DLLIMPORTEXPORT __declspec(dllimport) +#endif +/** + * End of workaround for the vcpkg package manager. + */ +#else + #define SIMDJSON_DLLIMPORTEXPORT +#endif - static_assert(std::numeric_limits::is_iec559, - "internal error: dtoa_short requires an IEEE-754 " - "floating-point implementation"); +// C++17 requires string_view. +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_HAS_STRING_VIEW +#include // by the standard, this has to be safe. +#endif - constexpr int kPrecision = - std::numeric_limits::digits; // = p (includes the hidden bit) - constexpr int kBias = - std::numeric_limits::max_exponent - 1 + (kPrecision - 1); - constexpr int kMinExp = 1 - kBias; - constexpr std::uint64_t kHiddenBit = std::uint64_t{1} - << (kPrecision - 1); // = 2^(p-1) +// This macro (__cpp_lib_string_view) has to be defined +// for C++17 and better, but if it is otherwise defined, +// we are going to assume that string_view is available +// even if we do not have C++17 support. +#ifdef __cpp_lib_string_view +#define SIMDJSON_HAS_STRING_VIEW +#endif - using bits_type = typename std::conditional::type; +// Some systems have string_view even if we do not have C++17 support, +// and even if __cpp_lib_string_view is undefined, it is the case +// with Apple clang version 11. +// We must handle it. *This is important.* +#ifndef SIMDJSON_HAS_STRING_VIEW +#if defined __has_include +// do not combine the next #if with the previous one (unsafe) +#if __has_include () +// now it is safe to trigger the include +#include // though the file is there, it does not follow that we got the implementation +#if defined(_LIBCPP_STRING_VIEW) +// Ah! So we under libc++ which under its Library Fundamentals Technical Specification, which preceded C++17, +// included string_view. +// This means that we have string_view *even though* we may not have C++17. +#define SIMDJSON_HAS_STRING_VIEW +#endif // _LIBCPP_STRING_VIEW +#endif // __has_include () +#endif // defined __has_include +#endif // def SIMDJSON_HAS_STRING_VIEW +// end of complicated but important routine to try to detect string_view. - const std::uint64_t bits = reinterpret_bits(value); - const std::uint64_t E = bits >> (kPrecision - 1); - const std::uint64_t F = bits & (kHiddenBit - 1); +// +// Backfill std::string_view using nonstd::string_view on systems where +// we expect that string_view is missing. Important: if we get this wrong, +// we will end up with two string_view definitions and potential trouble. +// That is why we work so hard above to avoid it. +// +#ifndef SIMDJSON_HAS_STRING_VIEW +SIMDJSON_PUSH_DISABLE_ALL_WARNINGS +/* including simdjson/nonstd/string_view.hpp: #include "simdjson/nonstd/string_view.hpp" */ +/* begin file simdjson/nonstd/string_view.hpp */ +// Copyright 2017-2020 by Martin Moene +// +// string-view lite, a C++17-like string_view for C++98 and later. +// For more information see https://github.com/martinmoene/string-view-lite +// +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt) - const bool is_denormal = E == 0; - const diyfp v = is_denormal - ? diyfp(F, kMinExp) - : diyfp(F + kHiddenBit, static_cast(E) - kBias); +#pragma once - // Compute the boundaries m- and m+ of the floating-point value - // v = f * 2^e. - // - // Determine v- and v+, the floating-point predecessor and successor if v, - // respectively. - // - // v- = v - 2^e if f != 2^(p-1) or e == e_min (A) - // = v - 2^(e-1) if f == 2^(p-1) and e > e_min (B) - // - // v+ = v + 2^e - // - // Let m- = (v- + v) / 2 and m+ = (v + v+) / 2. All real numbers _strictly_ - // between m- and m+ round to v, regardless of how the input rounding - // algorithm breaks ties. - // - // ---+-------------+-------------+-------------+-------------+--- (A) - // v- m- v m+ v+ - // - // -----------------+------+------+-------------+-------------+--- (B) - // v- m- v m+ v+ +#ifndef NONSTD_SV_LITE_H_INCLUDED +#define NONSTD_SV_LITE_H_INCLUDED - const bool lower_boundary_is_closer = F == 0 && E > 1; - const diyfp m_plus = diyfp(2 * v.f + 1, v.e - 1); - const diyfp m_minus = lower_boundary_is_closer - ? diyfp(4 * v.f - 1, v.e - 2) // (B) - : diyfp(2 * v.f - 1, v.e - 1); // (A) +#define string_view_lite_MAJOR 1 +#define string_view_lite_MINOR 7 +#define string_view_lite_PATCH 0 - // Determine the normalized w+ = m+. - const diyfp w_plus = diyfp::normalize(m_plus); +#define string_view_lite_VERSION nssv_STRINGIFY(string_view_lite_MAJOR) "." nssv_STRINGIFY(string_view_lite_MINOR) "." nssv_STRINGIFY(string_view_lite_PATCH) - // Determine w- = m- such that e_(w-) = e_(w+). - const diyfp w_minus = diyfp::normalize_to(m_minus, w_plus.e); +#define nssv_STRINGIFY( x ) nssv_STRINGIFY_( x ) +#define nssv_STRINGIFY_( x ) #x - return {diyfp::normalize(v), w_minus, w_plus}; -} +// string-view lite configuration: + +#define nssv_STRING_VIEW_DEFAULT 0 +#define nssv_STRING_VIEW_NONSTD 1 +#define nssv_STRING_VIEW_STD 2 + +// tweak header support: + +#ifdef __has_include +# if __has_include() +# include +# endif +#define nssv_HAVE_TWEAK_HEADER 1 +#else +#define nssv_HAVE_TWEAK_HEADER 0 +//# pragma message("string_view.hpp: Note: Tweak header not supported.") +#endif + +// string_view selection and configuration: + +#if !defined( nssv_CONFIG_SELECT_STRING_VIEW ) +# define nssv_CONFIG_SELECT_STRING_VIEW ( nssv_HAVE_STD_STRING_VIEW ? nssv_STRING_VIEW_STD : nssv_STRING_VIEW_NONSTD ) +#endif + +#ifndef nssv_CONFIG_STD_SV_OPERATOR +# define nssv_CONFIG_STD_SV_OPERATOR 0 +#endif + +#ifndef nssv_CONFIG_USR_SV_OPERATOR +# define nssv_CONFIG_USR_SV_OPERATOR 1 +#endif + +#ifdef nssv_CONFIG_CONVERSION_STD_STRING +# define nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS nssv_CONFIG_CONVERSION_STD_STRING +# define nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS nssv_CONFIG_CONVERSION_STD_STRING +#endif + +#ifndef nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS +# define nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS 1 +#endif + +#ifndef nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS +# define nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS 1 +#endif + +#ifndef nssv_CONFIG_NO_STREAM_INSERTION +# define nssv_CONFIG_NO_STREAM_INSERTION 0 +#endif + +// Control presence of exception handling (try and auto discover): + +#ifndef nssv_CONFIG_NO_EXCEPTIONS +# if defined(_MSC_VER) +# include // for _HAS_EXCEPTIONS +# endif +# if defined(__cpp_exceptions) || defined(__EXCEPTIONS) || (_HAS_EXCEPTIONS) +# define nssv_CONFIG_NO_EXCEPTIONS 0 +# else +# define nssv_CONFIG_NO_EXCEPTIONS 1 +# endif +#endif + +// C++ language version detection (C++23 is speculative): +// Note: VC14.0/1900 (VS2015) lacks too much from C++14. + +#ifndef nssv_CPLUSPLUS +# if defined(_MSVC_LANG ) && !defined(__clang__) +# define nssv_CPLUSPLUS (_MSC_VER == 1900 ? 201103L : _MSVC_LANG ) +# else +# define nssv_CPLUSPLUS __cplusplus +# endif +#endif + +#define nssv_CPP98_OR_GREATER ( nssv_CPLUSPLUS >= 199711L ) +#define nssv_CPP11_OR_GREATER ( nssv_CPLUSPLUS >= 201103L ) +#define nssv_CPP11_OR_GREATER_ ( nssv_CPLUSPLUS >= 201103L ) +#define nssv_CPP14_OR_GREATER ( nssv_CPLUSPLUS >= 201402L ) +#define nssv_CPP17_OR_GREATER ( nssv_CPLUSPLUS >= 201703L ) +#define nssv_CPP20_OR_GREATER ( nssv_CPLUSPLUS >= 202002L ) +#define nssv_CPP23_OR_GREATER ( nssv_CPLUSPLUS >= 202300L ) + +// use C++17 std::string_view if available and requested: + +#if nssv_CPP17_OR_GREATER && defined(__has_include ) +# if __has_include( ) +# define nssv_HAVE_STD_STRING_VIEW 1 +# else +# define nssv_HAVE_STD_STRING_VIEW 0 +# endif +#else +# define nssv_HAVE_STD_STRING_VIEW 0 +#endif + +#define nssv_USES_STD_STRING_VIEW ( (nssv_CONFIG_SELECT_STRING_VIEW == nssv_STRING_VIEW_STD) || ((nssv_CONFIG_SELECT_STRING_VIEW == nssv_STRING_VIEW_DEFAULT) && nssv_HAVE_STD_STRING_VIEW) ) + +#define nssv_HAVE_STARTS_WITH ( nssv_CPP20_OR_GREATER || !nssv_USES_STD_STRING_VIEW ) +#define nssv_HAVE_ENDS_WITH nssv_HAVE_STARTS_WITH -// Given normalized diyfp w, Grisu needs to find a (normalized) cached -// power-of-ten c, such that the exponent of the product c * w = f * 2^e lies -// within a certain range [alpha, gamma] (Definition 3.2 from [1]) -// -// alpha <= e = e_c + e_w + q <= gamma -// -// or -// -// f_c * f_w * 2^alpha <= f_c 2^(e_c) * f_w 2^(e_w) * 2^q -// <= f_c * f_w * 2^gamma -// -// Since c and w are normalized, i.e. 2^(q-1) <= f < 2^q, this implies -// -// 2^(q-1) * 2^(q-1) * 2^alpha <= c * w * 2^q < 2^q * 2^q * 2^gamma -// -// or -// -// 2^(q - 2 + alpha) <= c * w < 2^(q + gamma) -// -// The choice of (alpha,gamma) determines the size of the table and the form of -// the digit generation procedure. Using (alpha,gamma)=(-60,-32) works out well -// in practice: -// -// The idea is to cut the number c * w = f * 2^e into two parts, which can be -// processed independently: An integral part p1, and a fractional part p2: -// -// f * 2^e = ( (f div 2^-e) * 2^-e + (f mod 2^-e) ) * 2^e -// = (f div 2^-e) + (f mod 2^-e) * 2^e -// = p1 + p2 * 2^e -// -// The conversion of p1 into decimal form requires a series of divisions and -// modulos by (a power of) 10. These operations are faster for 32-bit than for -// 64-bit integers, so p1 should ideally fit into a 32-bit integer. This can be -// achieved by choosing -// -// -e >= 32 or e <= -32 := gamma -// -// In order to convert the fractional part -// -// p2 * 2^e = p2 / 2^-e = d[-1] / 10^1 + d[-2] / 10^2 + ... -// -// into decimal form, the fraction is repeatedly multiplied by 10 and the digits -// d[-i] are extracted in order: -// -// (10 * p2) div 2^-e = d[-1] -// (10 * p2) mod 2^-e = d[-2] / 10^1 + ... -// -// The multiplication by 10 must not overflow. It is sufficient to choose -// -// 10 * p2 < 16 * p2 = 2^4 * p2 <= 2^64. // -// Since p2 = f mod 2^-e < 2^-e, +// Use C++17 std::string_view: // -// -e <= 60 or e >= -60 := alpha -constexpr int kAlpha = -60; -constexpr int kGamma = -32; +#if nssv_USES_STD_STRING_VIEW -struct cached_power // c = f * 2^e ~= 10^k +#include + +// Extensions for std::string: + +#if nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS + +namespace nonstd { + +template< class CharT, class Traits, class Allocator = std::allocator > +std::basic_string +to_string( std::basic_string_view v, Allocator const & a = Allocator() ) { - std::uint64_t f; - int e; - int k; -}; + return std::basic_string( v.begin(), v.end(), a ); +} -/*! -For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached -power-of-ten c = f_c * 2^e_c, such that the exponent of the product w * c -satisfies (Definition 3.2 from [1]) - alpha <= e_c + e + q <= gamma. -*/ -inline cached_power get_cached_power_for_binary_exponent(int e) { - // Now - // - // alpha <= e_c + e + q <= gamma (1) - // ==> f_c * 2^alpha <= c * 2^e * 2^q - // - // and since the c's are normalized, 2^(q-1) <= f_c, - // - // ==> 2^(q - 1 + alpha) <= c * 2^(e + q) - // ==> 2^(alpha - e - 1) <= c - // - // If c were an exact power of ten, i.e. c = 10^k, one may determine k as - // - // k = ceil( log_10( 2^(alpha - e - 1) ) ) - // = ceil( (alpha - e - 1) * log_10(2) ) - // - // From the paper: - // "In theory the result of the procedure could be wrong since c is rounded, - // and the computation itself is approximated [...]. In practice, however, - // this simple function is sufficient." - // - // For IEEE double precision floating-point numbers converted into - // normalized diyfp's w = f * 2^e, with q = 64, - // - // e >= -1022 (min IEEE exponent) - // -52 (p - 1) - // -52 (p - 1, possibly normalize denormal IEEE numbers) - // -11 (normalize the diyfp) - // = -1137 - // - // and - // - // e <= +1023 (max IEEE exponent) - // -52 (p - 1) - // -11 (normalize the diyfp) - // = 960 - // - // This binary exponent range [-1137,960] results in a decimal exponent - // range [-307,324]. One does not need to store a cached power for each - // k in this range. For each such k it suffices to find a cached power - // such that the exponent of the product lies in [alpha,gamma]. - // This implies that the difference of the decimal exponents of adjacent - // table entries must be less than or equal to - // - // floor( (gamma - alpha) * log_10(2) ) = 8. - // - // (A smaller distance gamma-alpha would require a larger table.) +template< class CharT, class Traits, class Allocator > +std::basic_string_view +to_string_view( std::basic_string const & s ) +{ + return std::basic_string_view( s.data(), s.size() ); +} - // NB: - // Actually this function returns c, such that -60 <= e_c + e + 64 <= -34. +// Literal operators sv and _sv: - constexpr int kCachedPowersMinDecExp = -300; - constexpr int kCachedPowersDecStep = 8; +#if nssv_CONFIG_STD_SV_OPERATOR - static constexpr std::array kCachedPowers = {{ - {0xAB70FE17C79AC6CA, -1060, -300}, {0xFF77B1FCBEBCDC4F, -1034, -292}, - {0xBE5691EF416BD60C, -1007, -284}, {0x8DD01FAD907FFC3C, -980, -276}, - {0xD3515C2831559A83, -954, -268}, {0x9D71AC8FADA6C9B5, -927, -260}, - {0xEA9C227723EE8BCB, -901, -252}, {0xAECC49914078536D, -874, -244}, - {0x823C12795DB6CE57, -847, -236}, {0xC21094364DFB5637, -821, -228}, - {0x9096EA6F3848984F, -794, -220}, {0xD77485CB25823AC7, -768, -212}, - {0xA086CFCD97BF97F4, -741, -204}, {0xEF340A98172AACE5, -715, -196}, - {0xB23867FB2A35B28E, -688, -188}, {0x84C8D4DFD2C63F3B, -661, -180}, - {0xC5DD44271AD3CDBA, -635, -172}, {0x936B9FCEBB25C996, -608, -164}, - {0xDBAC6C247D62A584, -582, -156}, {0xA3AB66580D5FDAF6, -555, -148}, - {0xF3E2F893DEC3F126, -529, -140}, {0xB5B5ADA8AAFF80B8, -502, -132}, - {0x87625F056C7C4A8B, -475, -124}, {0xC9BCFF6034C13053, -449, -116}, - {0x964E858C91BA2655, -422, -108}, {0xDFF9772470297EBD, -396, -100}, - {0xA6DFBD9FB8E5B88F, -369, -92}, {0xF8A95FCF88747D94, -343, -84}, - {0xB94470938FA89BCF, -316, -76}, {0x8A08F0F8BF0F156B, -289, -68}, - {0xCDB02555653131B6, -263, -60}, {0x993FE2C6D07B7FAC, -236, -52}, - {0xE45C10C42A2B3B06, -210, -44}, {0xAA242499697392D3, -183, -36}, - {0xFD87B5F28300CA0E, -157, -28}, {0xBCE5086492111AEB, -130, -20}, - {0x8CBCCC096F5088CC, -103, -12}, {0xD1B71758E219652C, -77, -4}, - {0x9C40000000000000, -50, 4}, {0xE8D4A51000000000, -24, 12}, - {0xAD78EBC5AC620000, 3, 20}, {0x813F3978F8940984, 30, 28}, - {0xC097CE7BC90715B3, 56, 36}, {0x8F7E32CE7BEA5C70, 83, 44}, - {0xD5D238A4ABE98068, 109, 52}, {0x9F4F2726179A2245, 136, 60}, - {0xED63A231D4C4FB27, 162, 68}, {0xB0DE65388CC8ADA8, 189, 76}, - {0x83C7088E1AAB65DB, 216, 84}, {0xC45D1DF942711D9A, 242, 92}, - {0x924D692CA61BE758, 269, 100}, {0xDA01EE641A708DEA, 295, 108}, - {0xA26DA3999AEF774A, 322, 116}, {0xF209787BB47D6B85, 348, 124}, - {0xB454E4A179DD1877, 375, 132}, {0x865B86925B9BC5C2, 402, 140}, - {0xC83553C5C8965D3D, 428, 148}, {0x952AB45CFA97A0B3, 455, 156}, - {0xDE469FBD99A05FE3, 481, 164}, {0xA59BC234DB398C25, 508, 172}, - {0xF6C69A72A3989F5C, 534, 180}, {0xB7DCBF5354E9BECE, 561, 188}, - {0x88FCF317F22241E2, 588, 196}, {0xCC20CE9BD35C78A5, 614, 204}, - {0x98165AF37B2153DF, 641, 212}, {0xE2A0B5DC971F303A, 667, 220}, - {0xA8D9D1535CE3B396, 694, 228}, {0xFB9B7CD9A4A7443C, 720, 236}, - {0xBB764C4CA7A44410, 747, 244}, {0x8BAB8EEFB6409C1A, 774, 252}, - {0xD01FEF10A657842C, 800, 260}, {0x9B10A4E5E9913129, 827, 268}, - {0xE7109BFBA19C0C9D, 853, 276}, {0xAC2820D9623BF429, 880, 284}, - {0x80444B5E7AA7CF85, 907, 292}, {0xBF21E44003ACDD2D, 933, 300}, - {0x8E679C2F5E44FF8F, 960, 308}, {0xD433179D9C8CB841, 986, 316}, - {0x9E19DB92B4E31BA9, 1013, 324}, - }}; +using namespace std::literals::string_view_literals; - // This computation gives exactly the same results for k as - // k = ceil((kAlpha - e - 1) * 0.30102999566398114) - // for |e| <= 1500, but doesn't require floating-point operations. - // NB: log_10(2) ~= 78913 / 2^18 - const int f = kAlpha - e - 1; - const int k = (f * 78913) / (1 << 18) + static_cast(f > 0); +#endif - const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / - kCachedPowersDecStep; +#if nssv_CONFIG_USR_SV_OPERATOR - const cached_power cached = kCachedPowers[static_cast(index)]; +inline namespace literals { +inline namespace string_view_literals { - return cached; + +constexpr std::string_view operator "" _sv( const char* str, size_t len ) noexcept // (1) +{ + return std::string_view{ str, len }; } -/*! -For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k. -For n == 0, returns 1 and sets pow10 := 1. -*/ -inline int find_largest_pow10(const std::uint32_t n, std::uint32_t &pow10) { - // LCOV_EXCL_START - if (n >= 1000000000) { - pow10 = 1000000000; - return 10; - } - // LCOV_EXCL_STOP - else if (n >= 100000000) { - pow10 = 100000000; - return 9; - } else if (n >= 10000000) { - pow10 = 10000000; - return 8; - } else if (n >= 1000000) { - pow10 = 1000000; - return 7; - } else if (n >= 100000) { - pow10 = 100000; - return 6; - } else if (n >= 10000) { - pow10 = 10000; - return 5; - } else if (n >= 1000) { - pow10 = 1000; - return 4; - } else if (n >= 100) { - pow10 = 100; - return 3; - } else if (n >= 10) { - pow10 = 10; - return 2; - } else { - pow10 = 1; - return 1; - } +constexpr std::u16string_view operator "" _sv( const char16_t* str, size_t len ) noexcept // (2) +{ + return std::u16string_view{ str, len }; } -inline void grisu2_round(char *buf, int len, std::uint64_t dist, - std::uint64_t delta, std::uint64_t rest, - std::uint64_t ten_k) { +constexpr std::u32string_view operator "" _sv( const char32_t* str, size_t len ) noexcept // (3) +{ + return std::u32string_view{ str, len }; +} - // <--------------------------- delta ----> - // <---- dist ---------> - // --------------[------------------+-------------------]-------------- - // M- w M+ - // - // ten_k - // <------> - // <---- rest ----> - // --------------[------------------+----+--------------]-------------- - // w V - // = buf * 10^k - // - // ten_k represents a unit-in-the-last-place in the decimal representation - // stored in buf. - // Decrement buf by ten_k while this takes buf closer to w. +constexpr std::wstring_view operator "" _sv( const wchar_t* str, size_t len ) noexcept // (4) +{ + return std::wstring_view{ str, len }; +} - // The tests are written in this order to avoid overflow in unsigned - // integer arithmetic. +}} // namespace literals::string_view_literals - while (rest < dist && delta - rest >= ten_k && - (rest + ten_k < dist || dist - rest > rest + ten_k - dist)) { - buf[len - 1]--; - rest += ten_k; - } -} +#endif // nssv_CONFIG_USR_SV_OPERATOR -/*! -Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. -M- and M+ must be normalized and share the same exponent -60 <= e <= -32. -*/ -inline void grisu2_digit_gen(char *buffer, int &length, int &decimal_exponent, - diyfp M_minus, diyfp w, diyfp M_plus) { - static_assert(kAlpha >= -60, "internal error"); - static_assert(kGamma <= -32, "internal error"); +} // namespace nonstd - // Generates the digits (and the exponent) of a decimal floating-point - // number V = buffer * 10^decimal_exponent in the range [M-, M+]. The diyfp's - // w, M- and M+ share the same exponent e, which satisfies alpha <= e <= - // gamma. - // - // <--------------------------- delta ----> - // <---- dist ---------> - // --------------[------------------+-------------------]-------------- - // M- w M+ - // - // Grisu2 generates the digits of M+ from left to right and stops as soon as - // V is in [M-,M+]. +#endif // nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS - std::uint64_t delta = - diyfp::sub(M_plus, M_minus) - .f; // (significand of (M+ - M-), implicit exponent is e) - std::uint64_t dist = - diyfp::sub(M_plus, w) - .f; // (significand of (M+ - w ), implicit exponent is e) +namespace nonstd { - // Split M+ = f * 2^e into two parts p1 and p2 (note: e < 0): - // - // M+ = f * 2^e - // = ((f div 2^-e) * 2^-e + (f mod 2^-e)) * 2^e - // = ((p1 ) * 2^-e + (p2 )) * 2^e - // = p1 + p2 * 2^e +using std::string_view; +using std::wstring_view; +using std::u16string_view; +using std::u32string_view; +using std::basic_string_view; - const diyfp one(std::uint64_t{1} << -M_plus.e, M_plus.e); +// literal "sv" and "_sv", see above - auto p1 = static_cast( - M_plus.f >> - -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.) - std::uint64_t p2 = M_plus.f & (one.f - 1); // p2 = f mod 2^-e +using std::operator==; +using std::operator!=; +using std::operator<; +using std::operator<=; +using std::operator>; +using std::operator>=; - // 1) - // - // Generate the digits of the integral part p1 = d[n-1]...d[1]d[0] +using std::operator<<; - std::uint32_t pow10; - const int k = find_largest_pow10(p1, pow10); +} // namespace nonstd - // 10^(k-1) <= p1 < 10^k, pow10 = 10^(k-1) - // - // p1 = (p1 div 10^(k-1)) * 10^(k-1) + (p1 mod 10^(k-1)) - // = (d[k-1] ) * 10^(k-1) + (p1 mod 10^(k-1)) - // - // M+ = p1 + p2 * 2^e - // = d[k-1] * 10^(k-1) + (p1 mod 10^(k-1)) + p2 * 2^e - // = d[k-1] * 10^(k-1) + ((p1 mod 10^(k-1)) * 2^-e + p2) * 2^e - // = d[k-1] * 10^(k-1) + ( rest) * 2^e - // - // Now generate the digits d[n] of p1 from left to right (n = k-1,...,0) - // - // p1 = d[k-1]...d[n] * 10^n + d[n-1]...d[0] - // - // but stop as soon as - // - // rest * 2^e = (d[n-1]...d[0] * 2^-e + p2) * 2^e <= delta * 2^e +#else // nssv_HAVE_STD_STRING_VIEW - int n = k; - while (n > 0) { - // Invariants: - // M+ = buffer * 10^n + (p1 + p2 * 2^e) (buffer = 0 for n = k) - // pow10 = 10^(n-1) <= p1 < 10^n - // - const std::uint32_t d = p1 / pow10; // d = p1 div 10^(n-1) - const std::uint32_t r = p1 % pow10; // r = p1 mod 10^(n-1) - // - // M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e - // = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e) - // - buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d - // - // M+ = buffer * 10^(n-1) + (r + p2 * 2^e) - // - p1 = r; - n--; - // - // M+ = buffer * 10^n + (p1 + p2 * 2^e) - // pow10 = 10^n - // +// +// Before C++17: use string_view lite: +// - // Now check if enough digits have been generated. - // Compute - // - // p1 + p2 * 2^e = (p1 * 2^-e + p2) * 2^e = rest * 2^e - // - // Note: - // Since rest and delta share the same exponent e, it suffices to - // compare the significands. - const std::uint64_t rest = (std::uint64_t{p1} << -one.e) + p2; - if (rest <= delta) { - // V = buffer * 10^n, with M- <= V <= M+. +// Compiler versions: +// +// MSVC++ 6.0 _MSC_VER == 1200 nssv_COMPILER_MSVC_VERSION == 60 (Visual Studio 6.0) +// MSVC++ 7.0 _MSC_VER == 1300 nssv_COMPILER_MSVC_VERSION == 70 (Visual Studio .NET 2002) +// MSVC++ 7.1 _MSC_VER == 1310 nssv_COMPILER_MSVC_VERSION == 71 (Visual Studio .NET 2003) +// MSVC++ 8.0 _MSC_VER == 1400 nssv_COMPILER_MSVC_VERSION == 80 (Visual Studio 2005) +// MSVC++ 9.0 _MSC_VER == 1500 nssv_COMPILER_MSVC_VERSION == 90 (Visual Studio 2008) +// MSVC++ 10.0 _MSC_VER == 1600 nssv_COMPILER_MSVC_VERSION == 100 (Visual Studio 2010) +// MSVC++ 11.0 _MSC_VER == 1700 nssv_COMPILER_MSVC_VERSION == 110 (Visual Studio 2012) +// MSVC++ 12.0 _MSC_VER == 1800 nssv_COMPILER_MSVC_VERSION == 120 (Visual Studio 2013) +// MSVC++ 14.0 _MSC_VER == 1900 nssv_COMPILER_MSVC_VERSION == 140 (Visual Studio 2015) +// MSVC++ 14.1 _MSC_VER >= 1910 nssv_COMPILER_MSVC_VERSION == 141 (Visual Studio 2017) +// MSVC++ 14.2 _MSC_VER >= 1920 nssv_COMPILER_MSVC_VERSION == 142 (Visual Studio 2019) + +#if defined(_MSC_VER ) && !defined(__clang__) +# define nssv_COMPILER_MSVC_VER (_MSC_VER ) +# define nssv_COMPILER_MSVC_VERSION (_MSC_VER / 10 - 10 * ( 5 + (_MSC_VER < 1900 ) ) ) +#else +# define nssv_COMPILER_MSVC_VER 0 +# define nssv_COMPILER_MSVC_VERSION 0 +#endif - decimal_exponent += n; +#define nssv_COMPILER_VERSION( major, minor, patch ) ( 10 * ( 10 * (major) + (minor) ) + (patch) ) - // We may now just stop. But instead look if the buffer could be - // decremented to bring V closer to w. - // - // pow10 = 10^n is now 1 ulp in the decimal representation V. - // The rounding procedure works with diyfp's with an implicit - // exponent of e. - // - // 10^n = (10^n * 2^-e) * 2^e = ulp * 2^e - // - const std::uint64_t ten_n = std::uint64_t{pow10} << -one.e; - grisu2_round(buffer, length, dist, delta, rest, ten_n); +#if defined( __apple_build_version__ ) +# define nssv_COMPILER_APPLECLANG_VERSION nssv_COMPILER_VERSION(__clang_major__, __clang_minor__, __clang_patchlevel__) +# define nssv_COMPILER_CLANG_VERSION 0 +#elif defined( __clang__ ) +# define nssv_COMPILER_APPLECLANG_VERSION 0 +# define nssv_COMPILER_CLANG_VERSION nssv_COMPILER_VERSION(__clang_major__, __clang_minor__, __clang_patchlevel__) +#else +# define nssv_COMPILER_APPLECLANG_VERSION 0 +# define nssv_COMPILER_CLANG_VERSION 0 +#endif - return; - } +#if defined(__GNUC__) && !defined(__clang__) +# define nssv_COMPILER_GNUC_VERSION nssv_COMPILER_VERSION(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) +#else +# define nssv_COMPILER_GNUC_VERSION 0 +#endif - pow10 /= 10; - // - // pow10 = 10^(n-1) <= p1 < 10^n - // Invariants restored. - } +// half-open range [lo..hi): +#define nssv_BETWEEN( v, lo, hi ) ( (lo) <= (v) && (v) < (hi) ) - // 2) - // - // The digits of the integral part have been generated: - // - // M+ = d[k-1]...d[1]d[0] + p2 * 2^e - // = buffer + p2 * 2^e - // - // Now generate the digits of the fractional part p2 * 2^e. - // - // Note: - // No decimal point is generated: the exponent is adjusted instead. - // - // p2 actually represents the fraction - // - // p2 * 2^e - // = p2 / 2^-e - // = d[-1] / 10^1 + d[-2] / 10^2 + ... - // - // Now generate the digits d[-m] of p1 from left to right (m = 1,2,...) - // - // p2 * 2^e = d[-1]d[-2]...d[-m] * 10^-m - // + 10^-m * (d[-m-1] / 10^1 + d[-m-2] / 10^2 + ...) - // - // using - // - // 10^m * p2 = ((10^m * p2) div 2^-e) * 2^-e + ((10^m * p2) mod 2^-e) - // = ( d) * 2^-e + ( r) - // - // or - // 10^m * p2 * 2^e = d + r * 2^e - // - // i.e. - // - // M+ = buffer + p2 * 2^e - // = buffer + 10^-m * (d + r * 2^e) - // = (buffer * 10^m + d) * 10^-m + 10^-m * r * 2^e - // - // and stop as soon as 10^-m * r * 2^e <= delta * 2^e +// Presence of language and library features: - int m = 0; - for (;;) { - // Invariant: - // M+ = buffer * 10^-m + 10^-m * (d[-m-1] / 10 + d[-m-2] / 10^2 + ...) - // * 2^e - // = buffer * 10^-m + 10^-m * (p2 ) - // * 2^e = buffer * 10^-m + 10^-m * (1/10 * (10 * p2) ) * 2^e = - // buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + - // (10*p2 mod 2^-e)) * 2^e - // - p2 *= 10; - const std::uint64_t d = p2 >> -one.e; // d = (10 * p2) div 2^-e - const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e - // - // M+ = buffer * 10^-m + 10^-m * (1/10 * (d * 2^-e + r) * 2^e - // = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e)) - // = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e - // - buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d - // - // M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e - // - p2 = r; - m++; - // - // M+ = buffer * 10^-m + 10^-m * p2 * 2^e - // Invariant restored. +#ifdef _HAS_CPP0X +# define nssv_HAS_CPP0X _HAS_CPP0X +#else +# define nssv_HAS_CPP0X 0 +#endif - // Check if enough digits have been generated. - // - // 10^-m * p2 * 2^e <= delta * 2^e - // p2 * 2^e <= 10^m * delta * 2^e - // p2 <= 10^m * delta - delta *= 10; - dist *= 10; - if (p2 <= delta) { - break; - } - } +// Unless defined otherwise below, consider VC14 as C++11 for variant-lite: - // V = buffer * 10^-m, with M- <= V <= M+. +#if nssv_COMPILER_MSVC_VER >= 1900 +# undef nssv_CPP11_OR_GREATER +# define nssv_CPP11_OR_GREATER 1 +#endif - decimal_exponent -= m; +#define nssv_CPP11_90 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1500) +#define nssv_CPP11_100 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1600) +#define nssv_CPP11_110 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1700) +#define nssv_CPP11_120 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1800) +#define nssv_CPP11_140 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1900) +#define nssv_CPP11_141 (nssv_CPP11_OR_GREATER_ || nssv_COMPILER_MSVC_VER >= 1910) + +#define nssv_CPP14_000 (nssv_CPP14_OR_GREATER) +#define nssv_CPP17_000 (nssv_CPP17_OR_GREATER) + +// Presence of C++11 language features: + +#define nssv_HAVE_CONSTEXPR_11 nssv_CPP11_140 +#define nssv_HAVE_EXPLICIT_CONVERSION nssv_CPP11_140 +#define nssv_HAVE_INLINE_NAMESPACE nssv_CPP11_140 +#define nssv_HAVE_IS_DEFAULT nssv_CPP11_140 +#define nssv_HAVE_IS_DELETE nssv_CPP11_140 +#define nssv_HAVE_NOEXCEPT nssv_CPP11_140 +#define nssv_HAVE_NULLPTR nssv_CPP11_100 +#define nssv_HAVE_REF_QUALIFIER nssv_CPP11_140 +#define nssv_HAVE_UNICODE_LITERALS nssv_CPP11_140 +#define nssv_HAVE_USER_DEFINED_LITERALS nssv_CPP11_140 +#define nssv_HAVE_WCHAR16_T nssv_CPP11_100 +#define nssv_HAVE_WCHAR32_T nssv_CPP11_100 + +#if ! ( ( nssv_CPP11_OR_GREATER && nssv_COMPILER_CLANG_VERSION ) || nssv_BETWEEN( nssv_COMPILER_CLANG_VERSION, 300, 400 ) ) +# define nssv_HAVE_STD_DEFINED_LITERALS nssv_CPP11_140 +#else +# define nssv_HAVE_STD_DEFINED_LITERALS 0 +#endif - // 1 ulp in the decimal representation is now 10^-m. - // Since delta and dist are now scaled by 10^m, we need to do the - // same with ulp in order to keep the units in sync. - // - // 10^m * 10^-m = 1 = 2^-e * 2^e = ten_m * 2^e - // - const std::uint64_t ten_m = one.f; - grisu2_round(buffer, length, dist, delta, p2, ten_m); +// Presence of C++14 language features: - // By construction this algorithm generates the shortest possible decimal - // number (Loitsch, Theorem 6.2) which rounds back to w. - // For an input number of precision p, at least - // - // N = 1 + ceil(p * log_10(2)) - // - // decimal digits are sufficient to identify all binary floating-point - // numbers (Matula, "In-and-Out conversions"). - // This implies that the algorithm does not produce more than N decimal - // digits. - // - // N = 17 for p = 53 (IEEE double precision) - // N = 9 for p = 24 (IEEE single precision) -} +#define nssv_HAVE_CONSTEXPR_14 nssv_CPP14_000 -/*! -v = buf * 10^decimal_exponent -len is the length of the buffer (number of decimal digits) -The buffer must be large enough, i.e. >= max_digits10. -*/ -inline void grisu2(char *buf, int &len, int &decimal_exponent, diyfp m_minus, - diyfp v, diyfp m_plus) { +// Presence of C++17 language features: - // --------(-----------------------+-----------------------)-------- (A) - // m- v m+ - // - // --------------------(-----------+-----------------------)-------- (B) - // m- v m+ - // - // First scale v (and m- and m+) such that the exponent is in the range - // [alpha, gamma]. +#define nssv_HAVE_NODISCARD nssv_CPP17_000 - const cached_power cached = get_cached_power_for_binary_exponent(m_plus.e); +// Presence of C++ library features: - const diyfp c_minus_k(cached.f, cached.e); // = c ~= 10^-k +#define nssv_HAVE_STD_HASH nssv_CPP11_120 - // The exponent of the products is = v.e + c_minus_k.e + q and is in the range - // [alpha,gamma] - const diyfp w = diyfp::mul(v, c_minus_k); - const diyfp w_minus = diyfp::mul(m_minus, c_minus_k); - const diyfp w_plus = diyfp::mul(m_plus, c_minus_k); +// Presence of compiler intrinsics: - // ----(---+---)---------------(---+---)---------------(---+---)---- - // w- w w+ - // = c*m- = c*v = c*m+ - // - // diyfp::mul rounds its result and c_minus_k is approximated too. w, w- and - // w+ are now off by a small amount. - // In fact: - // - // w - v * 10^k < 1 ulp - // - // To account for this inaccuracy, add resp. subtract 1 ulp. - // - // --------+---[---------------(---+---)---------------]---+-------- - // w- M- w M+ w+ - // - // Now any number in [M-, M+] (bounds included) will round to w when input, - // regardless of how the input rounding algorithm breaks ties. - // - // And digit_gen generates the shortest possible such number in [M-, M+]. - // Note that this does not mean that Grisu2 always generates the shortest - // possible number in the interval (m-, m+). - const diyfp M_minus(w_minus.f + 1, w_minus.e); - const diyfp M_plus(w_plus.f - 1, w_plus.e); +// Providing char-type specializations for compare() and length() that +// use compiler intrinsics can improve compile- and run-time performance. +// +// The challenge is in using the right combinations of builtin availability +// and its constexpr-ness. +// +// | compiler | __builtin_memcmp (constexpr) | memcmp (constexpr) | +// |----------|------------------------------|---------------------| +// | clang | 4.0 (>= 4.0 ) | any (? ) | +// | clang-a | 9.0 (>= 9.0 ) | any (? ) | +// | gcc | any (constexpr) | any (? ) | +// | msvc | >= 14.2 C++17 (>= 14.2 ) | any (? ) | - decimal_exponent = -cached.k; // = -(-k) = k +#define nssv_HAVE_BUILTIN_VER ( (nssv_CPP17_000 && nssv_COMPILER_MSVC_VERSION >= 142) || nssv_COMPILER_GNUC_VERSION > 0 || nssv_COMPILER_CLANG_VERSION >= 400 || nssv_COMPILER_APPLECLANG_VERSION >= 900 ) +#define nssv_HAVE_BUILTIN_CE ( nssv_HAVE_BUILTIN_VER ) - grisu2_digit_gen(buf, len, decimal_exponent, M_minus, w, M_plus); -} +#define nssv_HAVE_BUILTIN_MEMCMP ( (nssv_HAVE_CONSTEXPR_14 && nssv_HAVE_BUILTIN_CE) || !nssv_HAVE_CONSTEXPR_14 ) +#define nssv_HAVE_BUILTIN_STRLEN ( (nssv_HAVE_CONSTEXPR_11 && nssv_HAVE_BUILTIN_CE) || !nssv_HAVE_CONSTEXPR_11 ) -/*! -v = buf * 10^decimal_exponent -len is the length of the buffer (number of decimal digits) -The buffer must be large enough, i.e. >= max_digits10. -*/ -template -void grisu2(char *buf, int &len, int &decimal_exponent, FloatType value) { - static_assert(diyfp::kPrecision >= std::numeric_limits::digits + 3, - "internal error: not enough precision"); +#ifdef __has_builtin +# define nssv_HAVE_BUILTIN( x ) __has_builtin( x ) +#else +# define nssv_HAVE_BUILTIN( x ) 0 +#endif - // If the neighbors (and boundaries) of 'value' are always computed for - // double-precision numbers, all float's can be recovered using strtod (and - // strtof). However, the resulting decimal representations are not exactly - // "short". - // - // The documentation for 'std::to_chars' - // (https://en.cppreference.com/w/cpp/utility/to_chars) says "value is - // converted to a string as if by std::sprintf in the default ("C") locale" - // and since sprintf promotes float's to double's, I think this is exactly - // what 'std::to_chars' does. On the other hand, the documentation for - // 'std::to_chars' requires that "parsing the representation using the - // corresponding std::from_chars function recovers value exactly". That - // indicates that single precision floating-point numbers should be recovered - // using 'std::strtof'. - // - // NB: If the neighbors are computed for single-precision numbers, there is a - // single float - // (7.0385307e-26f) which can't be recovered using strtod. The resulting - // double precision value is off by 1 ulp. -#if 0 - const boundaries w = compute_boundaries(static_cast(value)); +#if nssv_HAVE_BUILTIN(__builtin_memcmp) || nssv_HAVE_BUILTIN_VER +# define nssv_BUILTIN_MEMCMP __builtin_memcmp #else - const boundaries w = compute_boundaries(value); +# define nssv_BUILTIN_MEMCMP memcmp #endif - grisu2(buf, len, decimal_exponent, w.minus, w.w, w.plus); -} +#if nssv_HAVE_BUILTIN(__builtin_strlen) || nssv_HAVE_BUILTIN_VER +# define nssv_BUILTIN_STRLEN __builtin_strlen +#else +# define nssv_BUILTIN_STRLEN strlen +#endif -/*! -@brief appends a decimal representation of e to buf -@return a pointer to the element following the exponent. -@pre -1000 < e < 1000 -*/ -inline char *append_exponent(char *buf, int e) { +// C++ feature usage: - if (e < 0) { - e = -e; - *buf++ = '-'; - } else { - *buf++ = '+'; - } +#if nssv_HAVE_CONSTEXPR_11 +# define nssv_constexpr constexpr +#else +# define nssv_constexpr /*constexpr*/ +#endif - auto k = static_cast(e); - if (k < 10) { - // Always print at least two digits in the exponent. - // This is for compatibility with printf("%g"). - *buf++ = '0'; - *buf++ = static_cast('0' + k); - } else if (k < 100) { - *buf++ = static_cast('0' + k / 10); - k %= 10; - *buf++ = static_cast('0' + k); - } else { - *buf++ = static_cast('0' + k / 100); - k %= 100; - *buf++ = static_cast('0' + k / 10); - k %= 10; - *buf++ = static_cast('0' + k); - } +#if nssv_HAVE_CONSTEXPR_14 +# define nssv_constexpr14 constexpr +#else +# define nssv_constexpr14 /*constexpr*/ +#endif - return buf; -} +#if nssv_HAVE_EXPLICIT_CONVERSION +# define nssv_explicit explicit +#else +# define nssv_explicit /*explicit*/ +#endif -/*! -@brief prettify v = buf * 10^decimal_exponent -If v is in the range [10^min_exp, 10^max_exp) it will be printed in fixed-point -notation. Otherwise it will be printed in exponential notation. -@pre min_exp < 0 -@pre max_exp > 0 -*/ -inline char *format_buffer(char *buf, int len, int decimal_exponent, - int min_exp, int max_exp) { +#if nssv_HAVE_INLINE_NAMESPACE +# define nssv_inline_ns inline +#else +# define nssv_inline_ns /*inline*/ +#endif - const int k = len; - const int n = len + decimal_exponent; +#if nssv_HAVE_NOEXCEPT +# define nssv_noexcept noexcept +#else +# define nssv_noexcept /*noexcept*/ +#endif - // v = buf * 10^(n-k) - // k is the length of the buffer (number of decimal digits) - // n is the position of the decimal point relative to the start of the buffer. +//#if nssv_HAVE_REF_QUALIFIER +//# define nssv_ref_qual & +//# define nssv_refref_qual && +//#else +//# define nssv_ref_qual /*&*/ +//# define nssv_refref_qual /*&&*/ +//#endif - if (k <= n && n <= max_exp) { - // digits[000] - // len <= max_exp + 2 +#if nssv_HAVE_NULLPTR +# define nssv_nullptr nullptr +#else +# define nssv_nullptr NULL +#endif - std::memset(buf + k, '0', static_cast(n) - static_cast(k)); - // Make it look like a floating-point number (#362, #378) - buf[n + 0] = '.'; - buf[n + 1] = '0'; - return buf + (static_cast(n)) + 2; - } +#if nssv_HAVE_NODISCARD +# define nssv_nodiscard [[nodiscard]] +#else +# define nssv_nodiscard /*[[nodiscard]]*/ +#endif - if (0 < n && n <= max_exp) { - // dig.its - // len <= max_digits10 + 1 - std::memmove(buf + (static_cast(n) + 1), buf + n, - static_cast(k) - static_cast(n)); - buf[n] = '.'; - return buf + (static_cast(k) + 1U); - } +// Additional includes: - if (min_exp < n && n <= 0) { - // 0.[000]digits - // len <= 2 + (-min_exp - 1) + max_digits10 +#include +#include +#include +#include +#include // std::char_traits<> - std::memmove(buf + (2 + static_cast(-n)), buf, - static_cast(k)); - buf[0] = '0'; - buf[1] = '.'; - std::memset(buf + 2, '0', static_cast(-n)); - return buf + (2U + static_cast(-n) + static_cast(k)); - } +#if ! nssv_CONFIG_NO_STREAM_INSERTION +# include +#endif - if (k == 1) { - // dE+123 - // len <= 1 + 5 +#if ! nssv_CONFIG_NO_EXCEPTIONS +# include +#endif - buf += 1; - } else { - // d.igitsE+123 - // len <= max_digits10 + 1 + 5 +#if nssv_CPP11_OR_GREATER +# include +#endif - std::memmove(buf + 2, buf + 1, static_cast(k) - 1); - buf[1] = '.'; - buf += 1 + static_cast(k); - } +// Clang, GNUC, MSVC warning suppression macros: + +#if defined(__clang__) +# pragma clang diagnostic ignored "-Wreserved-user-defined-literal" +# pragma clang diagnostic push +# pragma clang diagnostic ignored "-Wuser-defined-literals" +#elif defined(__GNUC__) +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wliteral-suffix" +#endif // __clang__ + +#if nssv_COMPILER_MSVC_VERSION >= 140 +# define nssv_SUPPRESS_MSGSL_WARNING(expr) [[gsl::suppress(expr)]] +# define nssv_SUPPRESS_MSVC_WARNING(code, descr) __pragma(warning(suppress: code) ) +# define nssv_DISABLE_MSVC_WARNINGS(codes) __pragma(warning(push)) __pragma(warning(disable: codes)) +#else +# define nssv_SUPPRESS_MSGSL_WARNING(expr) +# define nssv_SUPPRESS_MSVC_WARNING(code, descr) +# define nssv_DISABLE_MSVC_WARNINGS(codes) +#endif - *buf++ = 'e'; - return append_exponent(buf, n - 1); -} +#if defined(__clang__) +# define nssv_RESTORE_WARNINGS() _Pragma("clang diagnostic pop") +#elif defined(__GNUC__) +# define nssv_RESTORE_WARNINGS() _Pragma("GCC diagnostic pop") +#elif nssv_COMPILER_MSVC_VERSION >= 140 +# define nssv_RESTORE_WARNINGS() __pragma(warning(pop )) +#else +# define nssv_RESTORE_WARNINGS() +#endif -} // namespace dtoa_impl +// Suppress the following MSVC (GSL) warnings: +// - C4455, non-gsl : 'operator ""sv': literal suffix identifiers that do not +// start with an underscore are reserved +// - C26472, gsl::t.1 : don't use a static_cast for arithmetic conversions; +// use brace initialization, gsl::narrow_cast or gsl::narow +// - C26481: gsl::b.1 : don't use pointer arithmetic. Use span instead -/*! -The format of the resulting decimal representation is similar to printf's %g -format. Returns an iterator pointing past-the-end of the decimal representation. -@note The input number must be finite, i.e. NaN's and Inf's are not supported. -@note The buffer must be large enough. -@note The result is NOT null-terminated. -*/ -char *to_chars(char *first, const char *last, double value) { - static_cast(last); // maybe unused - fix warning - bool negative = std::signbit(value); - if (negative) { - value = -value; - *first++ = '-'; - } +nssv_DISABLE_MSVC_WARNINGS( 4455 26481 26472 ) +//nssv_DISABLE_CLANG_WARNINGS( "-Wuser-defined-literals" ) +//nssv_DISABLE_GNUC_WARNINGS( -Wliteral-suffix ) - if (value == 0) // +-0 - { - *first++ = '0'; - // Make it look like a floating-point number (#362, #378) - *first++ = '.'; - *first++ = '0'; - return first; - } - // Compute v = buffer * 10^decimal_exponent. - // The decimal digits are stored in the buffer, which needs to be interpreted - // as an unsigned decimal integer. - // len is the length of the buffer, i.e. the number of decimal digits. - int len = 0; - int decimal_exponent = 0; - dtoa_impl::grisu2(first, len, decimal_exponent, value); - // Format the buffer like printf("%.*g", prec, value) - constexpr int kMinExp = -4; - constexpr int kMaxExp = std::numeric_limits::digits10; +namespace nonstd { namespace sv_lite { - return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, - kMaxExp); -} -} // namespace internal -} // namespace simdjson -/* end file src/to_chars.cpp */ -/* begin file src/from_chars.cpp */ -#include -namespace simdjson { -namespace internal { +// +// basic_string_view declaration: +// -/** - * The code in the internal::from_chars function is meant to handle the floating-point number parsing - * when we have more than 19 digits in the decimal mantissa. This should only be seen - * in adversarial scenarios: we do not expect production systems to even produce - * such floating-point numbers. - * - * The parser is based on work by Nigel Tao (at https://github.com/google/wuffs/) - * who credits Ken Thompson for the design (via a reference to the Go source - * code). See - * https://github.com/google/wuffs/blob/aa46859ea40c72516deffa1b146121952d6dfd3b/internal/cgen/base/floatconv-submodule-data.c - * https://github.com/google/wuffs/blob/46cd8105f47ca07ae2ba8e6a7818ef9c0df6c152/internal/cgen/base/floatconv-submodule-code.c - * It is probably not very fast but it is a fallback that should almost never be - * called in real life. Google Wuffs is published under APL 2.0. - **/ +template +< + class CharT, + class Traits = std::char_traits +> +class basic_string_view; -namespace { -constexpr uint32_t max_digits = 768; -constexpr int32_t decimal_point_range = 2047; -} // namespace +namespace detail { -struct adjusted_mantissa { - uint64_t mantissa; - int power2; - adjusted_mantissa() : mantissa(0), power2(0) {} -}; +// support constexpr comparison in C++14; +// for C++17 and later, use provided traits: -struct decimal { - uint32_t num_digits; - int32_t decimal_point; - bool negative; - bool truncated; - uint8_t digits[max_digits]; -}; +template< typename CharT > +inline nssv_constexpr14 int compare( CharT const * s1, CharT const * s2, std::size_t count ) +{ + while ( count-- != 0 ) + { + if ( *s1 < *s2 ) return -1; + if ( *s1 > *s2 ) return +1; + ++s1; ++s2; + } + return 0; +} -template struct binary_format { - static constexpr int mantissa_explicit_bits(); - static constexpr int minimum_exponent(); - static constexpr int infinite_power(); - static constexpr int sign_index(); -}; +#if nssv_HAVE_BUILTIN_MEMCMP -template <> constexpr int binary_format::mantissa_explicit_bits() { - return 52; +// specialization of compare() for char, see also generic compare() above: + +inline nssv_constexpr14 int compare( char const * s1, char const * s2, std::size_t count ) +{ + return nssv_BUILTIN_MEMCMP( s1, s2, count ); } -template <> constexpr int binary_format::minimum_exponent() { - return -1023; +#endif + +#if nssv_HAVE_BUILTIN_STRLEN + +// specialization of length() for char, see also generic length() further below: + +inline nssv_constexpr std::size_t length( char const * s ) +{ + return nssv_BUILTIN_STRLEN( s ); } -template <> constexpr int binary_format::infinite_power() { - return 0x7FF; + +#endif + +#if defined(__OPTIMIZE__) + +// gcc, clang provide __OPTIMIZE__ +// Expect tail call optimization to make length() non-recursive: + +template< typename CharT > +inline nssv_constexpr std::size_t length( CharT * s, std::size_t result = 0 ) +{ + return *s == '\0' ? result : length( s + 1, result + 1 ); } -template <> constexpr int binary_format::sign_index() { return 63; } +#else // OPTIMIZE -bool is_integer(char c) noexcept { return (c >= '0' && c <= '9'); } +// non-recursive: -// This should always succeed since it follows a call to parse_number. -decimal parse_decimal(const char *&p) noexcept { - decimal answer; - answer.num_digits = 0; - answer.decimal_point = 0; - answer.truncated = false; - answer.negative = (*p == '-'); - if ((*p == '-') || (*p == '+')) { - ++p; - } +template< typename CharT > +inline nssv_constexpr14 std::size_t length( CharT * s ) +{ + std::size_t result = 0; + while ( *s++ != '\0' ) + { + ++result; + } + return result; +} - while (*p == '0') { - ++p; - } - while (is_integer(*p)) { - if (answer.num_digits < max_digits) { - answer.digits[answer.num_digits] = uint8_t(*p - '0'); +#endif // OPTIMIZE + +#if nssv_CPP11_OR_GREATER && ! nssv_CPP17_OR_GREATER +#if defined(__OPTIMIZE__) + +// gcc, clang provide __OPTIMIZE__ +// Expect tail call optimization to make search() non-recursive: + +template< class CharT, class Traits = std::char_traits > +constexpr const CharT* search( basic_string_view haystack, basic_string_view needle ) +{ + return haystack.starts_with( needle ) ? haystack.begin() : + haystack.empty() ? haystack.end() : search( haystack.substr(1), needle ); +} + +#else // OPTIMIZE + +// non-recursive: + +template< class CharT, class Traits = std::char_traits > +constexpr const CharT* search( basic_string_view haystack, basic_string_view needle ) +{ + return std::search( haystack.begin(), haystack.end(), needle.begin(), needle.end() ); +} + +#endif // OPTIMIZE +#endif // nssv_CPP11_OR_GREATER && ! nssv_CPP17_OR_GREATER + +} // namespace detail + +// +// basic_string_view: +// + +template +< + class CharT, + class Traits /* = std::char_traits */ +> +class basic_string_view +{ +public: + // Member types: + + typedef Traits traits_type; + typedef CharT value_type; + + typedef CharT * pointer; + typedef CharT const * const_pointer; + typedef CharT & reference; + typedef CharT const & const_reference; + + typedef const_pointer iterator; + typedef const_pointer const_iterator; + typedef std::reverse_iterator< const_iterator > reverse_iterator; + typedef std::reverse_iterator< const_iterator > const_reverse_iterator; + + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + + // 24.4.2.1 Construction and assignment: + + nssv_constexpr basic_string_view() nssv_noexcept + : data_( nssv_nullptr ) + , size_( 0 ) + {} + +#if nssv_CPP11_OR_GREATER + nssv_constexpr basic_string_view( basic_string_view const & other ) nssv_noexcept = default; +#else + nssv_constexpr basic_string_view( basic_string_view const & other ) nssv_noexcept + : data_( other.data_) + , size_( other.size_) + {} +#endif + + nssv_constexpr basic_string_view( CharT const * s, size_type count ) nssv_noexcept // non-standard noexcept + : data_( s ) + , size_( count ) + {} + + nssv_constexpr basic_string_view( CharT const * s) nssv_noexcept // non-standard noexcept + : data_( s ) +#if nssv_CPP17_OR_GREATER + , size_( Traits::length(s) ) +#elif nssv_CPP11_OR_GREATER + , size_( detail::length(s) ) +#else + , size_( Traits::length(s) ) +#endif + {} + +#if nssv_HAVE_NULLPTR +# if nssv_HAVE_IS_DELETE + nssv_constexpr basic_string_view( std::nullptr_t ) nssv_noexcept = delete; +# else + private: nssv_constexpr basic_string_view( std::nullptr_t ) nssv_noexcept; public: +# endif +#endif + + // Assignment: + +#if nssv_CPP11_OR_GREATER + nssv_constexpr14 basic_string_view & operator=( basic_string_view const & other ) nssv_noexcept = default; +#else + nssv_constexpr14 basic_string_view & operator=( basic_string_view const & other ) nssv_noexcept + { + data_ = other.data_; + size_ = other.size_; + return *this; } - answer.num_digits++; - ++p; - } - if (*p == '.') { - ++p; - const char *first_after_period = p; - // if we have not yet encountered a zero, we have to skip it as well - if (answer.num_digits == 0) { - // skip zeros - while (*p == '0') { - ++p; - } +#endif + + // 24.4.2.2 Iterator support: + + nssv_constexpr const_iterator begin() const nssv_noexcept { return data_; } + nssv_constexpr const_iterator end() const nssv_noexcept { return data_ + size_; } + + nssv_constexpr const_iterator cbegin() const nssv_noexcept { return begin(); } + nssv_constexpr const_iterator cend() const nssv_noexcept { return end(); } + + nssv_constexpr const_reverse_iterator rbegin() const nssv_noexcept { return const_reverse_iterator( end() ); } + nssv_constexpr const_reverse_iterator rend() const nssv_noexcept { return const_reverse_iterator( begin() ); } + + nssv_constexpr const_reverse_iterator crbegin() const nssv_noexcept { return rbegin(); } + nssv_constexpr const_reverse_iterator crend() const nssv_noexcept { return rend(); } + + // 24.4.2.3 Capacity: + + nssv_constexpr size_type size() const nssv_noexcept { return size_; } + nssv_constexpr size_type length() const nssv_noexcept { return size_; } + nssv_constexpr size_type max_size() const nssv_noexcept { return (std::numeric_limits< size_type >::max)(); } + + // since C++20 + nssv_nodiscard nssv_constexpr bool empty() const nssv_noexcept + { + return 0 == size_; } - while (is_integer(*p)) { - if (answer.num_digits < max_digits) { - answer.digits[answer.num_digits] = uint8_t(*p - '0'); - } - answer.num_digits++; - ++p; + + // 24.4.2.4 Element access: + + nssv_constexpr const_reference operator[]( size_type pos ) const + { + return data_at( pos ); } - answer.decimal_point = int32_t(first_after_period - p); - } - if(answer.num_digits > 0) { - const char *preverse = p - 1; - int32_t trailing_zeros = 0; - while ((*preverse == '0') || (*preverse == '.')) { - if(*preverse == '0') { trailing_zeros++; }; - --preverse; + + nssv_constexpr14 const_reference at( size_type pos ) const + { +#if nssv_CONFIG_NO_EXCEPTIONS + assert( pos < size() ); +#else + if ( pos >= size() ) + { + throw std::out_of_range("nonstd::string_view::at()"); + } +#endif + return data_at( pos ); } - answer.decimal_point += int32_t(answer.num_digits); - answer.num_digits -= uint32_t(trailing_zeros); - } - if(answer.num_digits > max_digits ) { - answer.num_digits = max_digits; - answer.truncated = true; - } - if (('e' == *p) || ('E' == *p)) { - ++p; - bool neg_exp = false; - if ('-' == *p) { - neg_exp = true; - ++p; - } else if ('+' == *p) { - ++p; + + nssv_constexpr const_reference front() const { return data_at( 0 ); } + nssv_constexpr const_reference back() const { return data_at( size() - 1 ); } + + nssv_constexpr const_pointer data() const nssv_noexcept { return data_; } + + // 24.4.2.5 Modifiers: + + nssv_constexpr14 void remove_prefix( size_type n ) + { + assert( n <= size() ); + data_ += n; + size_ -= n; } - int32_t exp_number = 0; // exponential part - while (is_integer(*p)) { - uint8_t digit = uint8_t(*p - '0'); - if (exp_number < 0x10000) { - exp_number = 10 * exp_number + digit; - } - ++p; + + nssv_constexpr14 void remove_suffix( size_type n ) + { + assert( n <= size() ); + size_ -= n; } - answer.decimal_point += (neg_exp ? -exp_number : exp_number); - } - return answer; -} -// This should always succeed since it follows a call to parse_number. -// Will not read at or beyond the "end" pointer. -decimal parse_decimal(const char *&p, const char * end) noexcept { - decimal answer; - answer.num_digits = 0; - answer.decimal_point = 0; - answer.truncated = false; - if(p == end) { return answer; } // should never happen - answer.negative = (*p == '-'); - if ((*p == '-') || (*p == '+')) { - ++p; - } + nssv_constexpr14 void swap( basic_string_view & other ) nssv_noexcept + { + const basic_string_view tmp(other); + other = *this; + *this = tmp; + } - while ((p != end) && (*p == '0')) { - ++p; - } - while ((p != end) && is_integer(*p)) { - if (answer.num_digits < max_digits) { - answer.digits[answer.num_digits] = uint8_t(*p - '0'); + // 24.4.2.6 String operations: + + size_type copy( CharT * dest, size_type n, size_type pos = 0 ) const + { +#if nssv_CONFIG_NO_EXCEPTIONS + assert( pos <= size() ); +#else + if ( pos > size() ) + { + throw std::out_of_range("nonstd::string_view::copy()"); + } +#endif + const size_type rlen = (std::min)( n, size() - pos ); + + (void) Traits::copy( dest, data() + pos, rlen ); + + return rlen; } - answer.num_digits++; - ++p; - } - if ((p != end) && (*p == '.')) { - ++p; - if(p == end) { return answer; } // should never happen - const char *first_after_period = p; - // if we have not yet encountered a zero, we have to skip it as well - if (answer.num_digits == 0) { - // skip zeros - while (*p == '0') { - ++p; - } + + nssv_constexpr14 basic_string_view substr( size_type pos = 0, size_type n = npos ) const + { +#if nssv_CONFIG_NO_EXCEPTIONS + assert( pos <= size() ); +#else + if ( pos > size() ) + { + throw std::out_of_range("nonstd::string_view::substr()"); + } +#endif + return basic_string_view( data() + pos, (std::min)( n, size() - pos ) ); } - while ((p != end) && is_integer(*p)) { - if (answer.num_digits < max_digits) { - answer.digits[answer.num_digits] = uint8_t(*p - '0'); - } - answer.num_digits++; - ++p; + + // compare(), 6x: + + nssv_constexpr14 int compare( basic_string_view other ) const nssv_noexcept // (1) + { +#if nssv_CPP17_OR_GREATER + if ( const int result = Traits::compare( data(), other.data(), (std::min)( size(), other.size() ) ) ) +#else + if ( const int result = detail::compare( data(), other.data(), (std::min)( size(), other.size() ) ) ) +#endif + { + return result; + } + + return size() == other.size() ? 0 : size() < other.size() ? -1 : 1; } - answer.decimal_point = int32_t(first_after_period - p); - } - if(answer.num_digits > 0) { - const char *preverse = p - 1; - int32_t trailing_zeros = 0; - while ((*preverse == '0') || (*preverse == '.')) { - if(*preverse == '0') { trailing_zeros++; }; - --preverse; + + nssv_constexpr int compare( size_type pos1, size_type n1, basic_string_view other ) const // (2) + { + return substr( pos1, n1 ).compare( other ); } - answer.decimal_point += int32_t(answer.num_digits); - answer.num_digits -= uint32_t(trailing_zeros); - } - if(answer.num_digits > max_digits ) { - answer.num_digits = max_digits; - answer.truncated = true; - } - if ((p != end) && (('e' == *p) || ('E' == *p))) { - ++p; - if(p == end) { return answer; } // should never happen - bool neg_exp = false; - if ('-' == *p) { - neg_exp = true; - ++p; - } else if ('+' == *p) { - ++p; + + nssv_constexpr int compare( size_type pos1, size_type n1, basic_string_view other, size_type pos2, size_type n2 ) const // (3) + { + return substr( pos1, n1 ).compare( other.substr( pos2, n2 ) ); } - int32_t exp_number = 0; // exponential part - while ((p != end) && is_integer(*p)) { - uint8_t digit = uint8_t(*p - '0'); - if (exp_number < 0x10000) { - exp_number = 10 * exp_number + digit; - } - ++p; + + nssv_constexpr int compare( CharT const * s ) const // (4) + { + return compare( basic_string_view( s ) ); } - answer.decimal_point += (neg_exp ? -exp_number : exp_number); - } - return answer; -} -namespace { + nssv_constexpr int compare( size_type pos1, size_type n1, CharT const * s ) const // (5) + { + return substr( pos1, n1 ).compare( basic_string_view( s ) ); + } -// remove all final zeroes -inline void trim(decimal &h) { - while ((h.num_digits > 0) && (h.digits[h.num_digits - 1] == 0)) { - h.num_digits--; - } -} + nssv_constexpr int compare( size_type pos1, size_type n1, CharT const * s, size_type n2 ) const // (6) + { + return substr( pos1, n1 ).compare( basic_string_view( s, n2 ) ); + } -uint32_t number_of_digits_decimal_left_shift(decimal &h, uint32_t shift) { - shift &= 63; - const static uint16_t number_of_digits_decimal_left_shift_table[65] = { - 0x0000, 0x0800, 0x0801, 0x0803, 0x1006, 0x1009, 0x100D, 0x1812, 0x1817, - 0x181D, 0x2024, 0x202B, 0x2033, 0x203C, 0x2846, 0x2850, 0x285B, 0x3067, - 0x3073, 0x3080, 0x388E, 0x389C, 0x38AB, 0x38BB, 0x40CC, 0x40DD, 0x40EF, - 0x4902, 0x4915, 0x4929, 0x513E, 0x5153, 0x5169, 0x5180, 0x5998, 0x59B0, - 0x59C9, 0x61E3, 0x61FD, 0x6218, 0x6A34, 0x6A50, 0x6A6D, 0x6A8B, 0x72AA, - 0x72C9, 0x72E9, 0x7B0A, 0x7B2B, 0x7B4D, 0x8370, 0x8393, 0x83B7, 0x83DC, - 0x8C02, 0x8C28, 0x8C4F, 0x9477, 0x949F, 0x94C8, 0x9CF2, 0x051C, 0x051C, - 0x051C, 0x051C, - }; - uint32_t x_a = number_of_digits_decimal_left_shift_table[shift]; - uint32_t x_b = number_of_digits_decimal_left_shift_table[shift + 1]; - uint32_t num_new_digits = x_a >> 11; - uint32_t pow5_a = 0x7FF & x_a; - uint32_t pow5_b = 0x7FF & x_b; - const static uint8_t - number_of_digits_decimal_left_shift_table_powers_of_5[0x051C] = { - 5, 2, 5, 1, 2, 5, 6, 2, 5, 3, 1, 2, 5, 1, 5, 6, 2, 5, 7, 8, 1, 2, 5, - 3, 9, 0, 6, 2, 5, 1, 9, 5, 3, 1, 2, 5, 9, 7, 6, 5, 6, 2, 5, 4, 8, 8, - 2, 8, 1, 2, 5, 2, 4, 4, 1, 4, 0, 6, 2, 5, 1, 2, 2, 0, 7, 0, 3, 1, 2, - 5, 6, 1, 0, 3, 5, 1, 5, 6, 2, 5, 3, 0, 5, 1, 7, 5, 7, 8, 1, 2, 5, 1, - 5, 2, 5, 8, 7, 8, 9, 0, 6, 2, 5, 7, 6, 2, 9, 3, 9, 4, 5, 3, 1, 2, 5, - 3, 8, 1, 4, 6, 9, 7, 2, 6, 5, 6, 2, 5, 1, 9, 0, 7, 3, 4, 8, 6, 3, 2, - 8, 1, 2, 5, 9, 5, 3, 6, 7, 4, 3, 1, 6, 4, 0, 6, 2, 5, 4, 7, 6, 8, 3, - 7, 1, 5, 8, 2, 0, 3, 1, 2, 5, 2, 3, 8, 4, 1, 8, 5, 7, 9, 1, 0, 1, 5, - 6, 2, 5, 1, 1, 9, 2, 0, 9, 2, 8, 9, 5, 5, 0, 7, 8, 1, 2, 5, 5, 9, 6, - 0, 4, 6, 4, 4, 7, 7, 5, 3, 9, 0, 6, 2, 5, 2, 9, 8, 0, 2, 3, 2, 2, 3, - 8, 7, 6, 9, 5, 3, 1, 2, 5, 1, 4, 9, 0, 1, 1, 6, 1, 1, 9, 3, 8, 4, 7, - 6, 5, 6, 2, 5, 7, 4, 5, 0, 5, 8, 0, 5, 9, 6, 9, 2, 3, 8, 2, 8, 1, 2, - 5, 3, 7, 2, 5, 2, 9, 0, 2, 9, 8, 4, 6, 1, 9, 1, 4, 0, 6, 2, 5, 1, 8, - 6, 2, 6, 4, 5, 1, 4, 9, 2, 3, 0, 9, 5, 7, 0, 3, 1, 2, 5, 9, 3, 1, 3, - 2, 2, 5, 7, 4, 6, 1, 5, 4, 7, 8, 5, 1, 5, 6, 2, 5, 4, 6, 5, 6, 6, 1, - 2, 8, 7, 3, 0, 7, 7, 3, 9, 2, 5, 7, 8, 1, 2, 5, 2, 3, 2, 8, 3, 0, 6, - 4, 3, 6, 5, 3, 8, 6, 9, 6, 2, 8, 9, 0, 6, 2, 5, 1, 1, 6, 4, 1, 5, 3, - 2, 1, 8, 2, 6, 9, 3, 4, 8, 1, 4, 4, 5, 3, 1, 2, 5, 5, 8, 2, 0, 7, 6, - 6, 0, 9, 1, 3, 4, 6, 7, 4, 0, 7, 2, 2, 6, 5, 6, 2, 5, 2, 9, 1, 0, 3, - 8, 3, 0, 4, 5, 6, 7, 3, 3, 7, 0, 3, 6, 1, 3, 2, 8, 1, 2, 5, 1, 4, 5, - 5, 1, 9, 1, 5, 2, 2, 8, 3, 6, 6, 8, 5, 1, 8, 0, 6, 6, 4, 0, 6, 2, 5, - 7, 2, 7, 5, 9, 5, 7, 6, 1, 4, 1, 8, 3, 4, 2, 5, 9, 0, 3, 3, 2, 0, 3, - 1, 2, 5, 3, 6, 3, 7, 9, 7, 8, 8, 0, 7, 0, 9, 1, 7, 1, 2, 9, 5, 1, 6, - 6, 0, 1, 5, 6, 2, 5, 1, 8, 1, 8, 9, 8, 9, 4, 0, 3, 5, 4, 5, 8, 5, 6, - 4, 7, 5, 8, 3, 0, 0, 7, 8, 1, 2, 5, 9, 0, 9, 4, 9, 4, 7, 0, 1, 7, 7, - 2, 9, 2, 8, 2, 3, 7, 9, 1, 5, 0, 3, 9, 0, 6, 2, 5, 4, 5, 4, 7, 4, 7, - 3, 5, 0, 8, 8, 6, 4, 6, 4, 1, 1, 8, 9, 5, 7, 5, 1, 9, 5, 3, 1, 2, 5, - 2, 2, 7, 3, 7, 3, 6, 7, 5, 4, 4, 3, 2, 3, 2, 0, 5, 9, 4, 7, 8, 7, 5, - 9, 7, 6, 5, 6, 2, 5, 1, 1, 3, 6, 8, 6, 8, 3, 7, 7, 2, 1, 6, 1, 6, 0, - 2, 9, 7, 3, 9, 3, 7, 9, 8, 8, 2, 8, 1, 2, 5, 5, 6, 8, 4, 3, 4, 1, 8, - 8, 6, 0, 8, 0, 8, 0, 1, 4, 8, 6, 9, 6, 8, 9, 9, 4, 1, 4, 0, 6, 2, 5, - 2, 8, 4, 2, 1, 7, 0, 9, 4, 3, 0, 4, 0, 4, 0, 0, 7, 4, 3, 4, 8, 4, 4, - 9, 7, 0, 7, 0, 3, 1, 2, 5, 1, 4, 2, 1, 0, 8, 5, 4, 7, 1, 5, 2, 0, 2, - 0, 0, 3, 7, 1, 7, 4, 2, 2, 4, 8, 5, 3, 5, 1, 5, 6, 2, 5, 7, 1, 0, 5, - 4, 2, 7, 3, 5, 7, 6, 0, 1, 0, 0, 1, 8, 5, 8, 7, 1, 1, 2, 4, 2, 6, 7, - 5, 7, 8, 1, 2, 5, 3, 5, 5, 2, 7, 1, 3, 6, 7, 8, 8, 0, 0, 5, 0, 0, 9, - 2, 9, 3, 5, 5, 6, 2, 1, 3, 3, 7, 8, 9, 0, 6, 2, 5, 1, 7, 7, 6, 3, 5, - 6, 8, 3, 9, 4, 0, 0, 2, 5, 0, 4, 6, 4, 6, 7, 7, 8, 1, 0, 6, 6, 8, 9, - 4, 5, 3, 1, 2, 5, 8, 8, 8, 1, 7, 8, 4, 1, 9, 7, 0, 0, 1, 2, 5, 2, 3, - 2, 3, 3, 8, 9, 0, 5, 3, 3, 4, 4, 7, 2, 6, 5, 6, 2, 5, 4, 4, 4, 0, 8, - 9, 2, 0, 9, 8, 5, 0, 0, 6, 2, 6, 1, 6, 1, 6, 9, 4, 5, 2, 6, 6, 7, 2, - 3, 6, 3, 2, 8, 1, 2, 5, 2, 2, 2, 0, 4, 4, 6, 0, 4, 9, 2, 5, 0, 3, 1, - 3, 0, 8, 0, 8, 4, 7, 2, 6, 3, 3, 3, 6, 1, 8, 1, 6, 4, 0, 6, 2, 5, 1, - 1, 1, 0, 2, 2, 3, 0, 2, 4, 6, 2, 5, 1, 5, 6, 5, 4, 0, 4, 2, 3, 6, 3, - 1, 6, 6, 8, 0, 9, 0, 8, 2, 0, 3, 1, 2, 5, 5, 5, 5, 1, 1, 1, 5, 1, 2, - 3, 1, 2, 5, 7, 8, 2, 7, 0, 2, 1, 1, 8, 1, 5, 8, 3, 4, 0, 4, 5, 4, 1, - 0, 1, 5, 6, 2, 5, 2, 7, 7, 5, 5, 5, 7, 5, 6, 1, 5, 6, 2, 8, 9, 1, 3, - 5, 1, 0, 5, 9, 0, 7, 9, 1, 7, 0, 2, 2, 7, 0, 5, 0, 7, 8, 1, 2, 5, 1, - 3, 8, 7, 7, 7, 8, 7, 8, 0, 7, 8, 1, 4, 4, 5, 6, 7, 5, 5, 2, 9, 5, 3, - 9, 5, 8, 5, 1, 1, 3, 5, 2, 5, 3, 9, 0, 6, 2, 5, 6, 9, 3, 8, 8, 9, 3, - 9, 0, 3, 9, 0, 7, 2, 2, 8, 3, 7, 7, 6, 4, 7, 6, 9, 7, 9, 2, 5, 5, 6, - 7, 6, 2, 6, 9, 5, 3, 1, 2, 5, 3, 4, 6, 9, 4, 4, 6, 9, 5, 1, 9, 5, 3, - 6, 1, 4, 1, 8, 8, 8, 2, 3, 8, 4, 8, 9, 6, 2, 7, 8, 3, 8, 1, 3, 4, 7, - 6, 5, 6, 2, 5, 1, 7, 3, 4, 7, 2, 3, 4, 7, 5, 9, 7, 6, 8, 0, 7, 0, 9, - 4, 4, 1, 1, 9, 2, 4, 4, 8, 1, 3, 9, 1, 9, 0, 6, 7, 3, 8, 2, 8, 1, 2, - 5, 8, 6, 7, 3, 6, 1, 7, 3, 7, 9, 8, 8, 4, 0, 3, 5, 4, 7, 2, 0, 5, 9, - 6, 2, 2, 4, 0, 6, 9, 5, 9, 5, 3, 3, 6, 9, 1, 4, 0, 6, 2, 5, - }; - const uint8_t *pow5 = - &number_of_digits_decimal_left_shift_table_powers_of_5[pow5_a]; - uint32_t i = 0; - uint32_t n = pow5_b - pow5_a; - for (; i < n; i++) { - if (i >= h.num_digits) { - return num_new_digits - 1; - } else if (h.digits[i] == pow5[i]) { - continue; - } else if (h.digits[i] < pow5[i]) { - return num_new_digits - 1; - } else { - return num_new_digits; + // 24.4.2.7 Searching: + + // starts_with(), 3x, since C++20: + + nssv_constexpr bool starts_with( basic_string_view v ) const nssv_noexcept // (1) + { + return size() >= v.size() && compare( 0, v.size(), v ) == 0; } - } - return num_new_digits; -} -} // end of anonymous namespace + nssv_constexpr bool starts_with( CharT c ) const nssv_noexcept // (2) + { + return starts_with( basic_string_view( &c, 1 ) ); + } -uint64_t round(decimal &h) { - if ((h.num_digits == 0) || (h.decimal_point < 0)) { - return 0; - } else if (h.decimal_point > 18) { - return UINT64_MAX; - } - // at this point, we know that h.decimal_point >= 0 - uint32_t dp = uint32_t(h.decimal_point); - uint64_t n = 0; - for (uint32_t i = 0; i < dp; i++) { - n = (10 * n) + ((i < h.num_digits) ? h.digits[i] : 0); - } - bool round_up = false; - if (dp < h.num_digits) { - round_up = h.digits[dp] >= 5; // normally, we round up - // but we may need to round to even! - if ((h.digits[dp] == 5) && (dp + 1 == h.num_digits)) { - round_up = h.truncated || ((dp > 0) && (1 & h.digits[dp - 1])); + nssv_constexpr bool starts_with( CharT const * s ) const // (3) + { + return starts_with( basic_string_view( s ) ); } - } - if (round_up) { - n++; - } - return n; -} -// computes h * 2^-shift -void decimal_left_shift(decimal &h, uint32_t shift) { - if (h.num_digits == 0) { - return; - } - uint32_t num_new_digits = number_of_digits_decimal_left_shift(h, shift); - int32_t read_index = int32_t(h.num_digits - 1); - uint32_t write_index = h.num_digits - 1 + num_new_digits; - uint64_t n = 0; + // ends_with(), 3x, since C++20: - while (read_index >= 0) { - n += uint64_t(h.digits[read_index]) << shift; - uint64_t quotient = n / 10; - uint64_t remainder = n - (10 * quotient); - if (write_index < max_digits) { - h.digits[write_index] = uint8_t(remainder); - } else if (remainder > 0) { - h.truncated = true; + nssv_constexpr bool ends_with( basic_string_view v ) const nssv_noexcept // (1) + { + return size() >= v.size() && compare( size() - v.size(), npos, v ) == 0; } - n = quotient; - write_index--; - read_index--; - } - while (n > 0) { - uint64_t quotient = n / 10; - uint64_t remainder = n - (10 * quotient); - if (write_index < max_digits) { - h.digits[write_index] = uint8_t(remainder); - } else if (remainder > 0) { - h.truncated = true; + + nssv_constexpr bool ends_with( CharT c ) const nssv_noexcept // (2) + { + return ends_with( basic_string_view( &c, 1 ) ); } - n = quotient; - write_index--; - } - h.num_digits += num_new_digits; - if (h.num_digits > max_digits) { - h.num_digits = max_digits; - } - h.decimal_point += int32_t(num_new_digits); - trim(h); -} -// computes h * 2^shift -void decimal_right_shift(decimal &h, uint32_t shift) { - uint32_t read_index = 0; - uint32_t write_index = 0; + nssv_constexpr bool ends_with( CharT const * s ) const // (3) + { + return ends_with( basic_string_view( s ) ); + } - uint64_t n = 0; + // find(), 4x: - while ((n >> shift) == 0) { - if (read_index < h.num_digits) { - n = (10 * n) + h.digits[read_index++]; - } else if (n == 0) { - return; - } else { - while ((n >> shift) == 0) { - n = 10 * n; - read_index++; - } - break; + nssv_constexpr size_type find( basic_string_view v, size_type pos = 0 ) const nssv_noexcept // (1) + { + return assert( v.size() == 0 || v.data() != nssv_nullptr ) + , pos >= size() + ? npos : to_pos( +#if nssv_CPP11_OR_GREATER && ! nssv_CPP17_OR_GREATER + detail::search( substr(pos), v ) +#else + std::search( cbegin() + pos, cend(), v.cbegin(), v.cend(), Traits::eq ) +#endif + ); } - } - h.decimal_point -= int32_t(read_index - 1); - if (h.decimal_point < -decimal_point_range) { // it is zero - h.num_digits = 0; - h.decimal_point = 0; - h.negative = false; - h.truncated = false; - return; - } - uint64_t mask = (uint64_t(1) << shift) - 1; - while (read_index < h.num_digits) { - uint8_t new_digit = uint8_t(n >> shift); - n = (10 * (n & mask)) + h.digits[read_index++]; - h.digits[write_index++] = new_digit; - } - while (n > 0) { - uint8_t new_digit = uint8_t(n >> shift); - n = 10 * (n & mask); - if (write_index < max_digits) { - h.digits[write_index++] = new_digit; - } else if (new_digit > 0) { - h.truncated = true; + + nssv_constexpr size_type find( CharT c, size_type pos = 0 ) const nssv_noexcept // (2) + { + return find( basic_string_view( &c, 1 ), pos ); } - } - h.num_digits = write_index; - trim(h); -} -template adjusted_mantissa compute_float(decimal &d) { - adjusted_mantissa answer; - if (d.num_digits == 0) { - // should be zero - answer.power2 = 0; - answer.mantissa = 0; - return answer; - } - // At this point, going further, we can assume that d.num_digits > 0. - // We want to guard against excessive decimal point values because - // they can result in long running times. Indeed, we do - // shifts by at most 60 bits. We have that log(10**400)/log(2**60) ~= 22 - // which is fine, but log(10**299995)/log(2**60) ~= 16609 which is not - // fine (runs for a long time). - // - if(d.decimal_point < -324) { - // We have something smaller than 1e-324 which is always zero - // in binary64 and binary32. - // It should be zero. - answer.power2 = 0; - answer.mantissa = 0; - return answer; - } else if(d.decimal_point >= 310) { - // We have something at least as large as 0.1e310 which is - // always infinite. - answer.power2 = binary::infinite_power(); - answer.mantissa = 0; - return answer; - } + nssv_constexpr size_type find( CharT const * s, size_type pos, size_type n ) const // (3) + { + return find( basic_string_view( s, n ), pos ); + } - static const uint32_t max_shift = 60; - static const uint32_t num_powers = 19; - static const uint8_t powers[19] = { - 0, 3, 6, 9, 13, 16, 19, 23, 26, 29, // - 33, 36, 39, 43, 46, 49, 53, 56, 59, // - }; - int32_t exp2 = 0; - while (d.decimal_point > 0) { - uint32_t n = uint32_t(d.decimal_point); - uint32_t shift = (n < num_powers) ? powers[n] : max_shift; - decimal_right_shift(d, shift); - if (d.decimal_point < -decimal_point_range) { - // should be zero - answer.power2 = 0; - answer.mantissa = 0; - return answer; + nssv_constexpr size_type find( CharT const * s, size_type pos = 0 ) const // (4) + { + return find( basic_string_view( s ), pos ); } - exp2 += int32_t(shift); - } - // We shift left toward [1/2 ... 1]. - while (d.decimal_point <= 0) { - uint32_t shift; - if (d.decimal_point == 0) { - if (d.digits[0] >= 5) { - break; - } - shift = (d.digits[0] < 2) ? 2 : 1; - } else { - uint32_t n = uint32_t(-d.decimal_point); - shift = (n < num_powers) ? powers[n] : max_shift; + + // rfind(), 4x: + + nssv_constexpr14 size_type rfind( basic_string_view v, size_type pos = npos ) const nssv_noexcept // (1) + { + if ( size() < v.size() ) + { + return npos; + } + + if ( v.empty() ) + { + return (std::min)( size(), pos ); + } + + const_iterator last = cbegin() + (std::min)( size() - v.size(), pos ) + v.size(); + const_iterator result = std::find_end( cbegin(), last, v.cbegin(), v.cend(), Traits::eq ); + + return result != last ? size_type( result - cbegin() ) : npos; } - decimal_left_shift(d, shift); - if (d.decimal_point > decimal_point_range) { - // we want to get infinity: - answer.power2 = 0xFF; - answer.mantissa = 0; - return answer; + + nssv_constexpr14 size_type rfind( CharT c, size_type pos = npos ) const nssv_noexcept // (2) + { + return rfind( basic_string_view( &c, 1 ), pos ); } - exp2 -= int32_t(shift); - } - // We are now in the range [1/2 ... 1] but the binary format uses [1 ... 2]. - exp2--; - constexpr int32_t minimum_exponent = binary::minimum_exponent(); - while ((minimum_exponent + 1) > exp2) { - uint32_t n = uint32_t((minimum_exponent + 1) - exp2); - if (n > max_shift) { - n = max_shift; + + nssv_constexpr14 size_type rfind( CharT const * s, size_type pos, size_type n ) const // (3) + { + return rfind( basic_string_view( s, n ), pos ); } - decimal_right_shift(d, n); - exp2 += int32_t(n); - } - if ((exp2 - minimum_exponent) >= binary::infinite_power()) { - answer.power2 = binary::infinite_power(); - answer.mantissa = 0; - return answer; - } - const int mantissa_size_in_bits = binary::mantissa_explicit_bits() + 1; - decimal_left_shift(d, mantissa_size_in_bits); + nssv_constexpr14 size_type rfind( CharT const * s, size_type pos = npos ) const // (4) + { + return rfind( basic_string_view( s ), pos ); + } - uint64_t mantissa = round(d); - // It is possible that we have an overflow, in which case we need - // to shift back. - if (mantissa >= (uint64_t(1) << mantissa_size_in_bits)) { - decimal_right_shift(d, 1); - exp2 += 1; - mantissa = round(d); - if ((exp2 - minimum_exponent) >= binary::infinite_power()) { - answer.power2 = binary::infinite_power(); - answer.mantissa = 0; - return answer; + // find_first_of(), 4x: + + nssv_constexpr size_type find_first_of( basic_string_view v, size_type pos = 0 ) const nssv_noexcept // (1) + { + return pos >= size() + ? npos + : to_pos( std::find_first_of( cbegin() + pos, cend(), v.cbegin(), v.cend(), Traits::eq ) ); } - } - answer.power2 = exp2 - binary::minimum_exponent(); - if (mantissa < (uint64_t(1) << binary::mantissa_explicit_bits())) { - answer.power2--; - } - answer.mantissa = - mantissa & ((uint64_t(1) << binary::mantissa_explicit_bits()) - 1); - return answer; -} -template -adjusted_mantissa parse_long_mantissa(const char *first) { - decimal d = parse_decimal(first); - return compute_float(d); -} + nssv_constexpr size_type find_first_of( CharT c, size_type pos = 0 ) const nssv_noexcept // (2) + { + return find_first_of( basic_string_view( &c, 1 ), pos ); + } -template -adjusted_mantissa parse_long_mantissa(const char *first, const char *end) { - decimal d = parse_decimal(first, end); - return compute_float(d); -} + nssv_constexpr size_type find_first_of( CharT const * s, size_type pos, size_type n ) const // (3) + { + return find_first_of( basic_string_view( s, n ), pos ); + } -double from_chars(const char *first) noexcept { - bool negative = first[0] == '-'; - if (negative) { - first++; - } - adjusted_mantissa am = parse_long_mantissa>(first); - uint64_t word = am.mantissa; - word |= uint64_t(am.power2) - << binary_format::mantissa_explicit_bits(); - word = negative ? word | (uint64_t(1) << binary_format::sign_index()) - : word; - double value; - std::memcpy(&value, &word, sizeof(double)); - return value; -} + nssv_constexpr size_type find_first_of( CharT const * s, size_type pos = 0 ) const // (4) + { + return find_first_of( basic_string_view( s ), pos ); + } + // find_last_of(), 4x: -double from_chars(const char *first, const char *end) noexcept { - bool negative = first[0] == '-'; - if (negative) { - first++; - } - adjusted_mantissa am = parse_long_mantissa>(first, end); - uint64_t word = am.mantissa; - word |= uint64_t(am.power2) - << binary_format::mantissa_explicit_bits(); - word = negative ? word | (uint64_t(1) << binary_format::sign_index()) - : word; - double value; - std::memcpy(&value, &word, sizeof(double)); - return value; -} + nssv_constexpr size_type find_last_of( basic_string_view v, size_type pos = npos ) const nssv_noexcept // (1) + { + return empty() + ? npos + : pos >= size() + ? find_last_of( v, size() - 1 ) + : to_pos( std::find_first_of( const_reverse_iterator( cbegin() + pos + 1 ), crend(), v.cbegin(), v.cend(), Traits::eq ) ); + } -} // internal -} // simdjson -/* end file src/from_chars.cpp */ -/* begin file src/internal/error_tables.cpp */ + nssv_constexpr size_type find_last_of( CharT c, size_type pos = npos ) const nssv_noexcept // (2) + { + return find_last_of( basic_string_view( &c, 1 ), pos ); + } -namespace simdjson { -namespace internal { + nssv_constexpr size_type find_last_of( CharT const * s, size_type pos, size_type count ) const // (3) + { + return find_last_of( basic_string_view( s, count ), pos ); + } - SIMDJSON_DLLIMPORTEXPORT const error_code_info error_codes[] { - { SUCCESS, "SUCCESS: No error" }, - { CAPACITY, "CAPACITY: This parser can't support a document that big" }, - { MEMALLOC, "MEMALLOC: Error allocating memory, we're most likely out of memory" }, - { TAPE_ERROR, "TAPE_ERROR: The JSON document has an improper structure: missing or superfluous commas, braces, missing keys, etc." }, - { DEPTH_ERROR, "DEPTH_ERROR: The JSON document was too deep (too many nested objects and arrays)" }, - { STRING_ERROR, "STRING_ERROR: Problem while parsing a string" }, - { T_ATOM_ERROR, "T_ATOM_ERROR: Problem while parsing an atom starting with the letter 't'" }, - { F_ATOM_ERROR, "F_ATOM_ERROR: Problem while parsing an atom starting with the letter 'f'" }, - { N_ATOM_ERROR, "N_ATOM_ERROR: Problem while parsing an atom starting with the letter 'n'" }, - { NUMBER_ERROR, "NUMBER_ERROR: Problem while parsing a number" }, - { UTF8_ERROR, "UTF8_ERROR: The input is not valid UTF-8" }, - { UNINITIALIZED, "UNINITIALIZED: Uninitialized" }, - { EMPTY, "EMPTY: no JSON found" }, - { UNESCAPED_CHARS, "UNESCAPED_CHARS: Within strings, some characters must be escaped, we found unescaped characters" }, - { UNCLOSED_STRING, "UNCLOSED_STRING: A string is opened, but never closed." }, - { UNSUPPORTED_ARCHITECTURE, "UNSUPPORTED_ARCHITECTURE: simdjson does not have an implementation supported by this CPU architecture. Please report this error to the core team as it should never happen." }, - { INCORRECT_TYPE, "INCORRECT_TYPE: The JSON element does not have the requested type." }, - { NUMBER_OUT_OF_RANGE, "NUMBER_OUT_OF_RANGE: The JSON number is too large or too small to fit within the requested type." }, - { INDEX_OUT_OF_BOUNDS, "INDEX_OUT_OF_BOUNDS: Attempted to access an element of a JSON array that is beyond its length." }, - { NO_SUCH_FIELD, "NO_SUCH_FIELD: The JSON field referenced does not exist in this object." }, - { IO_ERROR, "IO_ERROR: Error reading the file." }, - { INVALID_JSON_POINTER, "INVALID_JSON_POINTER: Invalid JSON pointer syntax." }, - { INVALID_URI_FRAGMENT, "INVALID_URI_FRAGMENT: Invalid URI fragment syntax." }, - { UNEXPECTED_ERROR, "UNEXPECTED_ERROR: Unexpected error, consider reporting this problem as you may have found a bug in simdjson" }, - { PARSER_IN_USE, "PARSER_IN_USE: Cannot parse a new document while a document is still in use." }, - { OUT_OF_ORDER_ITERATION, "OUT_OF_ORDER_ITERATION: Objects and arrays can only be iterated when they are first encountered." }, - { INSUFFICIENT_PADDING, "INSUFFICIENT_PADDING: simdjson requires the input JSON string to have at least SIMDJSON_PADDING extra bytes allocated, beyond the string's length. Consider using the simdjson::padded_string class if needed." }, - { INCOMPLETE_ARRAY_OR_OBJECT, "INCOMPLETE_ARRAY_OR_OBJECT: JSON document ended early in the middle of an object or array." }, - { SCALAR_DOCUMENT_AS_VALUE, "SCALAR_DOCUMENT_AS_VALUE: A JSON document made of a scalar (number, Boolean, null or string) is treated as a value. Use get_bool(), get_double(), etc. on the document instead. "}, - { OUT_OF_BOUNDS, "OUT_OF_BOUNDS: Attempt to access location outside of document."}, - { TRAILING_CONTENT, "TRAILING_CONTENT: Unexpected trailing content in the JSON input."} - }; // error_messages[] + nssv_constexpr size_type find_last_of( CharT const * s, size_type pos = npos ) const // (4) + { + return find_last_of( basic_string_view( s ), pos ); + } -} // namespace internal -} // namespace simdjson -/* end file src/internal/error_tables.cpp */ -/* begin file src/internal/jsoncharutils_tables.cpp */ + // find_first_not_of(), 4x: -namespace simdjson { -namespace internal { + nssv_constexpr size_type find_first_not_of( basic_string_view v, size_type pos = 0 ) const nssv_noexcept // (1) + { + return pos >= size() + ? npos + : to_pos( std::find_if( cbegin() + pos, cend(), not_in_view( v ) ) ); + } -// structural chars here are -// they are { 0x7b } 0x7d : 0x3a [ 0x5b ] 0x5d , 0x2c (and NULL) -// we are also interested in the four whitespace characters -// space 0x20, linefeed 0x0a, horizontal tab 0x09 and carriage return 0x0d + nssv_constexpr size_type find_first_not_of( CharT c, size_type pos = 0 ) const nssv_noexcept // (2) + { + return find_first_not_of( basic_string_view( &c, 1 ), pos ); + } -SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace_negated[256] = { - 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, + nssv_constexpr size_type find_first_not_of( CharT const * s, size_type pos, size_type count ) const // (3) + { + return find_first_not_of( basic_string_view( s, count ), pos ); + } - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, + nssv_constexpr size_type find_first_not_of( CharT const * s, size_type pos = 0 ) const // (4) + { + return find_first_not_of( basic_string_view( s ), pos ); + } - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + // find_last_not_of(), 4x: - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; + nssv_constexpr size_type find_last_not_of( basic_string_view v, size_type pos = npos ) const nssv_noexcept // (1) + { + return empty() + ? npos + : pos >= size() + ? find_last_not_of( v, size() - 1 ) + : to_pos( std::find_if( const_reverse_iterator( cbegin() + pos + 1 ), crend(), not_in_view( v ) ) ); + } -SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + nssv_constexpr size_type find_last_not_of( CharT c, size_type pos = npos ) const nssv_noexcept // (2) + { + return find_last_not_of( basic_string_view( &c, 1 ), pos ); + } -SIMDJSON_DLLIMPORTEXPORT const uint32_t digit_to_val32[886] = { - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, - 0x6, 0x7, 0x8, 0x9, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa, - 0xb, 0xc, 0xd, 0xe, 0xf, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xa, 0xb, 0xc, 0xd, 0xe, - 0xf, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0x0, 0x10, 0x20, 0x30, 0x40, 0x50, - 0x60, 0x70, 0x80, 0x90, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa0, - 0xb0, 0xc0, 0xd0, 0xe0, 0xf0, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, - 0xf0, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0x0, 0x100, 0x200, 0x300, 0x400, 0x500, - 0x600, 0x700, 0x800, 0x900, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa00, - 0xb00, 0xc00, 0xd00, 0xe00, 0xf00, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xa00, 0xb00, 0xc00, 0xd00, 0xe00, - 0xf00, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0x0, 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, - 0x6000, 0x7000, 0x8000, 0x9000, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa000, - 0xb000, 0xc000, 0xd000, 0xe000, 0xf000, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xa000, 0xb000, 0xc000, 0xd000, 0xe000, - 0xf000, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, - 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}; + nssv_constexpr size_type find_last_not_of( CharT const * s, size_type pos, size_type count ) const // (3) + { + return find_last_not_of( basic_string_view( s, count ), pos ); + } -} // namespace internal -} // namespace simdjson -/* end file src/internal/jsoncharutils_tables.cpp */ -/* begin file src/internal/numberparsing_tables.cpp */ + nssv_constexpr size_type find_last_not_of( CharT const * s, size_type pos = npos ) const // (4) + { + return find_last_not_of( basic_string_view( s ), pos ); + } -namespace simdjson { -namespace internal { + // Constants: -// Precomputed powers of ten from 10^0 to 10^22. These -// can be represented exactly using the double type. -SIMDJSON_DLLIMPORTEXPORT const double power_of_ten[] = { - 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, - 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22}; +#if nssv_CPP17_OR_GREATER + static nssv_constexpr size_type npos = size_type(-1); +#elif nssv_CPP11_OR_GREATER + enum : size_type { npos = size_type(-1) }; +#else + enum { npos = size_type(-1) }; +#endif -/** - * When mapping numbers from decimal to binary, - * we go from w * 10^q to m * 2^p but we have - * 10^q = 5^q * 2^q, so effectively - * we are trying to match - * w * 2^q * 5^q to m * 2^p. Thus the powers of two - * are not a concern since they can be represented - * exactly using the binary notation, only the powers of five - * affect the binary significand. - */ +private: + struct not_in_view + { + const basic_string_view v; + nssv_constexpr explicit not_in_view( basic_string_view v_ ) : v( v_ ) {} -// The truncated powers of five from 5^-342 all the way to 5^308 -// The mantissa is truncated to 128 bits, and -// never rounded up. Uses about 10KB. -SIMDJSON_DLLIMPORTEXPORT const uint64_t power_of_five_128[]= { - 0xeef453d6923bd65a,0x113faa2906a13b3f, - 0x9558b4661b6565f8,0x4ac7ca59a424c507, - 0xbaaee17fa23ebf76,0x5d79bcf00d2df649, - 0xe95a99df8ace6f53,0xf4d82c2c107973dc, - 0x91d8a02bb6c10594,0x79071b9b8a4be869, - 0xb64ec836a47146f9,0x9748e2826cdee284, - 0xe3e27a444d8d98b7,0xfd1b1b2308169b25, - 0x8e6d8c6ab0787f72,0xfe30f0f5e50e20f7, - 0xb208ef855c969f4f,0xbdbd2d335e51a935, - 0xde8b2b66b3bc4723,0xad2c788035e61382, - 0x8b16fb203055ac76,0x4c3bcb5021afcc31, - 0xaddcb9e83c6b1793,0xdf4abe242a1bbf3d, - 0xd953e8624b85dd78,0xd71d6dad34a2af0d, - 0x87d4713d6f33aa6b,0x8672648c40e5ad68, - 0xa9c98d8ccb009506,0x680efdaf511f18c2, - 0xd43bf0effdc0ba48,0x212bd1b2566def2, - 0x84a57695fe98746d,0x14bb630f7604b57, - 0xa5ced43b7e3e9188,0x419ea3bd35385e2d, - 0xcf42894a5dce35ea,0x52064cac828675b9, - 0x818995ce7aa0e1b2,0x7343efebd1940993, - 0xa1ebfb4219491a1f,0x1014ebe6c5f90bf8, - 0xca66fa129f9b60a6,0xd41a26e077774ef6, - 0xfd00b897478238d0,0x8920b098955522b4, - 0x9e20735e8cb16382,0x55b46e5f5d5535b0, - 0xc5a890362fddbc62,0xeb2189f734aa831d, - 0xf712b443bbd52b7b,0xa5e9ec7501d523e4, - 0x9a6bb0aa55653b2d,0x47b233c92125366e, - 0xc1069cd4eabe89f8,0x999ec0bb696e840a, - 0xf148440a256e2c76,0xc00670ea43ca250d, - 0x96cd2a865764dbca,0x380406926a5e5728, - 0xbc807527ed3e12bc,0xc605083704f5ecf2, - 0xeba09271e88d976b,0xf7864a44c633682e, - 0x93445b8731587ea3,0x7ab3ee6afbe0211d, - 0xb8157268fdae9e4c,0x5960ea05bad82964, - 0xe61acf033d1a45df,0x6fb92487298e33bd, - 0x8fd0c16206306bab,0xa5d3b6d479f8e056, - 0xb3c4f1ba87bc8696,0x8f48a4899877186c, - 0xe0b62e2929aba83c,0x331acdabfe94de87, - 0x8c71dcd9ba0b4925,0x9ff0c08b7f1d0b14, - 0xaf8e5410288e1b6f,0x7ecf0ae5ee44dd9, - 0xdb71e91432b1a24a,0xc9e82cd9f69d6150, - 0x892731ac9faf056e,0xbe311c083a225cd2, - 0xab70fe17c79ac6ca,0x6dbd630a48aaf406, - 0xd64d3d9db981787d,0x92cbbccdad5b108, - 0x85f0468293f0eb4e,0x25bbf56008c58ea5, - 0xa76c582338ed2621,0xaf2af2b80af6f24e, - 0xd1476e2c07286faa,0x1af5af660db4aee1, - 0x82cca4db847945ca,0x50d98d9fc890ed4d, - 0xa37fce126597973c,0xe50ff107bab528a0, - 0xcc5fc196fefd7d0c,0x1e53ed49a96272c8, - 0xff77b1fcbebcdc4f,0x25e8e89c13bb0f7a, - 0x9faacf3df73609b1,0x77b191618c54e9ac, - 0xc795830d75038c1d,0xd59df5b9ef6a2417, - 0xf97ae3d0d2446f25,0x4b0573286b44ad1d, - 0x9becce62836ac577,0x4ee367f9430aec32, - 0xc2e801fb244576d5,0x229c41f793cda73f, - 0xf3a20279ed56d48a,0x6b43527578c1110f, - 0x9845418c345644d6,0x830a13896b78aaa9, - 0xbe5691ef416bd60c,0x23cc986bc656d553, - 0xedec366b11c6cb8f,0x2cbfbe86b7ec8aa8, - 0x94b3a202eb1c3f39,0x7bf7d71432f3d6a9, - 0xb9e08a83a5e34f07,0xdaf5ccd93fb0cc53, - 0xe858ad248f5c22c9,0xd1b3400f8f9cff68, - 0x91376c36d99995be,0x23100809b9c21fa1, - 0xb58547448ffffb2d,0xabd40a0c2832a78a, - 0xe2e69915b3fff9f9,0x16c90c8f323f516c, - 0x8dd01fad907ffc3b,0xae3da7d97f6792e3, - 0xb1442798f49ffb4a,0x99cd11cfdf41779c, - 0xdd95317f31c7fa1d,0x40405643d711d583, - 0x8a7d3eef7f1cfc52,0x482835ea666b2572, - 0xad1c8eab5ee43b66,0xda3243650005eecf, - 0xd863b256369d4a40,0x90bed43e40076a82, - 0x873e4f75e2224e68,0x5a7744a6e804a291, - 0xa90de3535aaae202,0x711515d0a205cb36, - 0xd3515c2831559a83,0xd5a5b44ca873e03, - 0x8412d9991ed58091,0xe858790afe9486c2, - 0xa5178fff668ae0b6,0x626e974dbe39a872, - 0xce5d73ff402d98e3,0xfb0a3d212dc8128f, - 0x80fa687f881c7f8e,0x7ce66634bc9d0b99, - 0xa139029f6a239f72,0x1c1fffc1ebc44e80, - 0xc987434744ac874e,0xa327ffb266b56220, - 0xfbe9141915d7a922,0x4bf1ff9f0062baa8, - 0x9d71ac8fada6c9b5,0x6f773fc3603db4a9, - 0xc4ce17b399107c22,0xcb550fb4384d21d3, - 0xf6019da07f549b2b,0x7e2a53a146606a48, - 0x99c102844f94e0fb,0x2eda7444cbfc426d, - 0xc0314325637a1939,0xfa911155fefb5308, - 0xf03d93eebc589f88,0x793555ab7eba27ca, - 0x96267c7535b763b5,0x4bc1558b2f3458de, - 0xbbb01b9283253ca2,0x9eb1aaedfb016f16, - 0xea9c227723ee8bcb,0x465e15a979c1cadc, - 0x92a1958a7675175f,0xbfacd89ec191ec9, - 0xb749faed14125d36,0xcef980ec671f667b, - 0xe51c79a85916f484,0x82b7e12780e7401a, - 0x8f31cc0937ae58d2,0xd1b2ecb8b0908810, - 0xb2fe3f0b8599ef07,0x861fa7e6dcb4aa15, - 0xdfbdcece67006ac9,0x67a791e093e1d49a, - 0x8bd6a141006042bd,0xe0c8bb2c5c6d24e0, - 0xaecc49914078536d,0x58fae9f773886e18, - 0xda7f5bf590966848,0xaf39a475506a899e, - 0x888f99797a5e012d,0x6d8406c952429603, - 0xaab37fd7d8f58178,0xc8e5087ba6d33b83, - 0xd5605fcdcf32e1d6,0xfb1e4a9a90880a64, - 0x855c3be0a17fcd26,0x5cf2eea09a55067f, - 0xa6b34ad8c9dfc06f,0xf42faa48c0ea481e, - 0xd0601d8efc57b08b,0xf13b94daf124da26, - 0x823c12795db6ce57,0x76c53d08d6b70858, - 0xa2cb1717b52481ed,0x54768c4b0c64ca6e, - 0xcb7ddcdda26da268,0xa9942f5dcf7dfd09, - 0xfe5d54150b090b02,0xd3f93b35435d7c4c, - 0x9efa548d26e5a6e1,0xc47bc5014a1a6daf, - 0xc6b8e9b0709f109a,0x359ab6419ca1091b, - 0xf867241c8cc6d4c0,0xc30163d203c94b62, - 0x9b407691d7fc44f8,0x79e0de63425dcf1d, - 0xc21094364dfb5636,0x985915fc12f542e4, - 0xf294b943e17a2bc4,0x3e6f5b7b17b2939d, - 0x979cf3ca6cec5b5a,0xa705992ceecf9c42, - 0xbd8430bd08277231,0x50c6ff782a838353, - 0xece53cec4a314ebd,0xa4f8bf5635246428, - 0x940f4613ae5ed136,0x871b7795e136be99, - 0xb913179899f68584,0x28e2557b59846e3f, - 0xe757dd7ec07426e5,0x331aeada2fe589cf, - 0x9096ea6f3848984f,0x3ff0d2c85def7621, - 0xb4bca50b065abe63,0xfed077a756b53a9, - 0xe1ebce4dc7f16dfb,0xd3e8495912c62894, - 0x8d3360f09cf6e4bd,0x64712dd7abbbd95c, - 0xb080392cc4349dec,0xbd8d794d96aacfb3, - 0xdca04777f541c567,0xecf0d7a0fc5583a0, - 0x89e42caaf9491b60,0xf41686c49db57244, - 0xac5d37d5b79b6239,0x311c2875c522ced5, - 0xd77485cb25823ac7,0x7d633293366b828b, - 0x86a8d39ef77164bc,0xae5dff9c02033197, - 0xa8530886b54dbdeb,0xd9f57f830283fdfc, - 0xd267caa862a12d66,0xd072df63c324fd7b, - 0x8380dea93da4bc60,0x4247cb9e59f71e6d, - 0xa46116538d0deb78,0x52d9be85f074e608, - 0xcd795be870516656,0x67902e276c921f8b, - 0x806bd9714632dff6,0xba1cd8a3db53b6, - 0xa086cfcd97bf97f3,0x80e8a40eccd228a4, - 0xc8a883c0fdaf7df0,0x6122cd128006b2cd, - 0xfad2a4b13d1b5d6c,0x796b805720085f81, - 0x9cc3a6eec6311a63,0xcbe3303674053bb0, - 0xc3f490aa77bd60fc,0xbedbfc4411068a9c, + nssv_constexpr bool operator()( CharT c ) const + { + return npos == v.find_first_of( c ); + } + }; + + nssv_constexpr size_type to_pos( const_iterator it ) const + { + return it == cend() ? npos : size_type( it - cbegin() ); + } + + nssv_constexpr size_type to_pos( const_reverse_iterator it ) const + { + return it == crend() ? npos : size_type( crend() - it - 1 ); + } + + nssv_constexpr const_reference data_at( size_type pos ) const + { +#if nssv_BETWEEN( nssv_COMPILER_GNUC_VERSION, 1, 500 ) + return data_[pos]; +#else + return assert( pos < size() ), data_[pos]; +#endif + } + +private: + const_pointer data_; + size_type size_; + +public: +#if nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS + + template< class Allocator > + basic_string_view( std::basic_string const & s ) nssv_noexcept + : data_( s.data() ) + , size_( s.size() ) + {} + +#if nssv_HAVE_EXPLICIT_CONVERSION + + template< class Allocator > + explicit operator std::basic_string() const + { + return to_string( Allocator() ); + } + +#endif // nssv_HAVE_EXPLICIT_CONVERSION + +#if nssv_CPP11_OR_GREATER + + template< class Allocator = std::allocator > + std::basic_string + to_string( Allocator const & a = Allocator() ) const + { + return std::basic_string( begin(), end(), a ); + } + +#else + + std::basic_string + to_string() const + { + return std::basic_string( begin(), end() ); + } + + template< class Allocator > + std::basic_string + to_string( Allocator const & a ) const + { + return std::basic_string( begin(), end(), a ); + } + +#endif // nssv_CPP11_OR_GREATER + +#endif // nssv_CONFIG_CONVERSION_STD_STRING_CLASS_METHODS +}; + +// +// Non-member functions: +// + +// 24.4.3 Non-member comparison functions: +// lexicographically compare two string views (function template): + +template< class CharT, class Traits > +nssv_constexpr bool operator== ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +template< class CharT, class Traits > +nssv_constexpr bool operator!= ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits > +nssv_constexpr bool operator< ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +template< class CharT, class Traits > +nssv_constexpr bool operator<= ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +template< class CharT, class Traits > +nssv_constexpr bool operator> ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +template< class CharT, class Traits > +nssv_constexpr bool operator>= ( + basic_string_view lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +// Let S be basic_string_view, and sv be an instance of S. +// Implementations shall provide sufficient additional overloads marked +// constexpr and noexcept so that an object t with an implicit conversion +// to S can be compared according to Table 67. + +#if ! nssv_CPP11_OR_GREATER || nssv_BETWEEN( nssv_COMPILER_MSVC_VERSION, 100, 141 ) + +// accommodate for older compilers: + +// == + +template< class CharT, class Traits> +nssv_constexpr bool operator==( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.size() == detail::length( rhs ) && lhs.compare( rhs ) == 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator==( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return detail::length( lhs ) == rhs.size() && rhs.compare( lhs ) == 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator==( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator==( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +// != + +template< class CharT, class Traits> +nssv_constexpr bool operator!=( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits> +nssv_constexpr bool operator!=( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits> +nssv_constexpr bool operator!=( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits> +nssv_constexpr bool operator!=( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +// < + +template< class CharT, class Traits> +nssv_constexpr bool operator<( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return rhs.compare( lhs ) > 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return rhs.compare( lhs ) > 0; } + +// <= + +template< class CharT, class Traits> +nssv_constexpr bool operator<=( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<=( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return rhs.compare( lhs ) >= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<=( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator<=( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return rhs.compare( lhs ) >= 0; } + +// > + +template< class CharT, class Traits> +nssv_constexpr bool operator>( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return rhs.compare( lhs ) < 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return rhs.compare( lhs ) < 0; } + +// >= + +template< class CharT, class Traits> +nssv_constexpr bool operator>=( + basic_string_view lhs, + CharT const * rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>=( + CharT const * lhs, + basic_string_view rhs ) nssv_noexcept +{ return rhs.compare( lhs ) <= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>=( + basic_string_view lhs, + std::basic_string rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +template< class CharT, class Traits> +nssv_constexpr bool operator>=( + std::basic_string rhs, + basic_string_view lhs ) nssv_noexcept +{ return rhs.compare( lhs ) <= 0; } + +#else // newer compilers: + +#define nssv_BASIC_STRING_VIEW_I(T,U) typename std::decay< basic_string_view >::type + +#if defined(_MSC_VER) // issue 40 +# define nssv_MSVC_ORDER(x) , int=x +#else +# define nssv_MSVC_ORDER(x) /*, int=x*/ +#endif + +// == + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator==( + basic_string_view lhs, + nssv_BASIC_STRING_VIEW_I(CharT, Traits) rhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator==( + nssv_BASIC_STRING_VIEW_I(CharT, Traits) lhs, + basic_string_view rhs ) nssv_noexcept +{ return lhs.size() == rhs.size() && lhs.compare( rhs ) == 0; } + +// != + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator!= ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator!= ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return !( lhs == rhs ); } + +// < + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator< ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator< ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return lhs.compare( rhs ) < 0; } + +// <= + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator<= ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator<= ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return lhs.compare( rhs ) <= 0; } + +// > + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator> ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator> ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return lhs.compare( rhs ) > 0; } + +// >= + +template< class CharT, class Traits nssv_MSVC_ORDER(1) > +nssv_constexpr bool operator>= ( + basic_string_view < CharT, Traits > lhs, + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +template< class CharT, class Traits nssv_MSVC_ORDER(2) > +nssv_constexpr bool operator>= ( + nssv_BASIC_STRING_VIEW_I( CharT, Traits ) lhs, + basic_string_view < CharT, Traits > rhs ) nssv_noexcept +{ return lhs.compare( rhs ) >= 0; } + +#undef nssv_MSVC_ORDER +#undef nssv_BASIC_STRING_VIEW_I + +#endif // compiler-dependent approach to comparisons + +// 24.4.4 Inserters and extractors: + +#if ! nssv_CONFIG_NO_STREAM_INSERTION + +namespace detail { + +template< class Stream > +void write_padding( Stream & os, std::streamsize n ) +{ + for ( std::streamsize i = 0; i < n; ++i ) + os.rdbuf()->sputc( os.fill() ); +} + +template< class Stream, class View > +Stream & write_to_stream( Stream & os, View const & sv ) +{ + typename Stream::sentry sentry( os ); + + if ( !sentry ) + return os; + + const std::streamsize length = static_cast( sv.length() ); + + // Whether, and how, to pad: + const bool pad = ( length < os.width() ); + const bool left_pad = pad && ( os.flags() & std::ios_base::adjustfield ) == std::ios_base::right; + + if ( left_pad ) + write_padding( os, os.width() - length ); + + // Write span characters: + os.rdbuf()->sputn( sv.begin(), length ); + + if ( pad && !left_pad ) + write_padding( os, os.width() - length ); + + // Reset output stream width: + os.width( 0 ); + + return os; +} + +} // namespace detail + +template< class CharT, class Traits > +std::basic_ostream & +operator<<( + std::basic_ostream& os, + basic_string_view sv ) +{ + return detail::write_to_stream( os, sv ); +} + +#endif // nssv_CONFIG_NO_STREAM_INSERTION + +// Several typedefs for common character types are provided: + +typedef basic_string_view string_view; +typedef basic_string_view wstring_view; +#if nssv_HAVE_WCHAR16_T +typedef basic_string_view u16string_view; +typedef basic_string_view u32string_view; +#endif + +}} // namespace nonstd::sv_lite + +// +// 24.4.6 Suffix for basic_string_view literals: +// + +#if nssv_HAVE_USER_DEFINED_LITERALS + +namespace nonstd { +nssv_inline_ns namespace literals { +nssv_inline_ns namespace string_view_literals { + +#if nssv_CONFIG_STD_SV_OPERATOR && nssv_HAVE_STD_DEFINED_LITERALS + +nssv_constexpr nonstd::sv_lite::string_view operator "" sv( const char* str, size_t len ) nssv_noexcept // (1) +{ + return nonstd::sv_lite::string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::u16string_view operator "" sv( const char16_t* str, size_t len ) nssv_noexcept // (2) +{ + return nonstd::sv_lite::u16string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::u32string_view operator "" sv( const char32_t* str, size_t len ) nssv_noexcept // (3) +{ + return nonstd::sv_lite::u32string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::wstring_view operator "" sv( const wchar_t* str, size_t len ) nssv_noexcept // (4) +{ + return nonstd::sv_lite::wstring_view{ str, len }; +} + +#endif // nssv_CONFIG_STD_SV_OPERATOR && nssv_HAVE_STD_DEFINED_LITERALS + +#if nssv_CONFIG_USR_SV_OPERATOR + +nssv_constexpr nonstd::sv_lite::string_view operator "" _sv( const char* str, size_t len ) nssv_noexcept // (1) +{ + return nonstd::sv_lite::string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::u16string_view operator "" _sv( const char16_t* str, size_t len ) nssv_noexcept // (2) +{ + return nonstd::sv_lite::u16string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::u32string_view operator "" _sv( const char32_t* str, size_t len ) nssv_noexcept // (3) +{ + return nonstd::sv_lite::u32string_view{ str, len }; +} + +nssv_constexpr nonstd::sv_lite::wstring_view operator "" _sv( const wchar_t* str, size_t len ) nssv_noexcept // (4) +{ + return nonstd::sv_lite::wstring_view{ str, len }; +} + +#endif // nssv_CONFIG_USR_SV_OPERATOR + +}}} // namespace nonstd::literals::string_view_literals + +#endif + +// +// Extensions for std::string: +// + +#if nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS + +namespace nonstd { +namespace sv_lite { + +// Exclude MSVC 14 (19.00): it yields ambiguous to_string(): + +#if nssv_CPP11_OR_GREATER && nssv_COMPILER_MSVC_VERSION != 140 + +template< class CharT, class Traits, class Allocator = std::allocator > +std::basic_string +to_string( basic_string_view v, Allocator const & a = Allocator() ) +{ + return std::basic_string( v.begin(), v.end(), a ); +} + +#else + +template< class CharT, class Traits > +std::basic_string +to_string( basic_string_view v ) +{ + return std::basic_string( v.begin(), v.end() ); +} + +template< class CharT, class Traits, class Allocator > +std::basic_string +to_string( basic_string_view v, Allocator const & a ) +{ + return std::basic_string( v.begin(), v.end(), a ); +} + +#endif // nssv_CPP11_OR_GREATER + +template< class CharT, class Traits, class Allocator > +basic_string_view +to_string_view( std::basic_string const & s ) +{ + return basic_string_view( s.data(), s.size() ); +} + +}} // namespace nonstd::sv_lite + +#endif // nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS + +// +// make types and algorithms available in namespace nonstd: +// + +namespace nonstd { + +using sv_lite::basic_string_view; +using sv_lite::string_view; +using sv_lite::wstring_view; + +#if nssv_HAVE_WCHAR16_T +using sv_lite::u16string_view; +#endif +#if nssv_HAVE_WCHAR32_T +using sv_lite::u32string_view; +#endif + +// literal "sv" + +using sv_lite::operator==; +using sv_lite::operator!=; +using sv_lite::operator<; +using sv_lite::operator<=; +using sv_lite::operator>; +using sv_lite::operator>=; + +#if ! nssv_CONFIG_NO_STREAM_INSERTION +using sv_lite::operator<<; +#endif + +#if nssv_CONFIG_CONVERSION_STD_STRING_FREE_FUNCTIONS +using sv_lite::to_string; +using sv_lite::to_string_view; +#endif + +} // namespace nonstd + +// 24.4.5 Hash support (C++11): + +// Note: The hash value of a string view object is equal to the hash value of +// the corresponding string object. + +#if nssv_HAVE_STD_HASH + +#include + +namespace std { + +template<> +struct hash< nonstd::string_view > +{ +public: + std::size_t operator()( nonstd::string_view v ) const nssv_noexcept + { + return std::hash()( std::string( v.data(), v.size() ) ); + } +}; + +template<> +struct hash< nonstd::wstring_view > +{ +public: + std::size_t operator()( nonstd::wstring_view v ) const nssv_noexcept + { + return std::hash()( std::wstring( v.data(), v.size() ) ); + } +}; + +template<> +struct hash< nonstd::u16string_view > +{ +public: + std::size_t operator()( nonstd::u16string_view v ) const nssv_noexcept + { + return std::hash()( std::u16string( v.data(), v.size() ) ); + } +}; + +template<> +struct hash< nonstd::u32string_view > +{ +public: + std::size_t operator()( nonstd::u32string_view v ) const nssv_noexcept + { + return std::hash()( std::u32string( v.data(), v.size() ) ); + } +}; + +} // namespace std + +#endif // nssv_HAVE_STD_HASH + +nssv_RESTORE_WARNINGS() + +#endif // nssv_HAVE_STD_STRING_VIEW +#endif // NONSTD_SV_LITE_H_INCLUDED +/* end file simdjson/nonstd/string_view.hpp */ +SIMDJSON_POP_DISABLE_WARNINGS + +namespace std { + using string_view = nonstd::string_view; +} +#endif // SIMDJSON_HAS_STRING_VIEW +#undef SIMDJSON_HAS_STRING_VIEW // We are not going to need this macro anymore. + +/// If EXPR is an error, returns it. +#define SIMDJSON_TRY(EXPR) { auto _err = (EXPR); if (_err) { return _err; } } + +// Unless the programmer has already set SIMDJSON_DEVELOPMENT_CHECKS, +// we want to set it under debug builds. We detect a debug build +// under Visual Studio when the _DEBUG macro is set. Under the other +// compilers, we use the fact that they define __OPTIMIZE__ whenever +// they allow optimizations. +// It is possible that this could miss some cases where SIMDJSON_DEVELOPMENT_CHECKS +// is helpful, but the programmer can set the macro SIMDJSON_DEVELOPMENT_CHECKS. +// It could also wrongly set SIMDJSON_DEVELOPMENT_CHECKS (e.g., if the programmer +// sets _DEBUG in a release build under Visual Studio, or if some compiler fails to +// set the __OPTIMIZE__ macro). +#ifndef SIMDJSON_DEVELOPMENT_CHECKS +#ifdef _MSC_VER +// Visual Studio seems to set _DEBUG for debug builds. +#ifdef _DEBUG +#define SIMDJSON_DEVELOPMENT_CHECKS 1 +#endif // _DEBUG +#else // _MSC_VER +// All other compilers appear to set __OPTIMIZE__ to a positive integer +// when the compiler is optimizing. +#ifndef __OPTIMIZE__ +#define SIMDJSON_DEVELOPMENT_CHECKS 1 +#endif // __OPTIMIZE__ +#endif // _MSC_VER +#endif // SIMDJSON_DEVELOPMENT_CHECKS + +// The SIMDJSON_CHECK_EOF macro is a feature flag for the "don't require padding" +// feature. + +#if SIMDJSON_CPLUSPLUS17 +// if we have C++, then fallthrough is a default attribute +# define simdjson_fallthrough [[fallthrough]] +// check if we have __attribute__ support +#elif defined(__has_attribute) +// check if we have the __fallthrough__ attribute +#if __has_attribute(__fallthrough__) +// we are good to go: +# define simdjson_fallthrough __attribute__((__fallthrough__)) +#endif // __has_attribute(__fallthrough__) +#endif // SIMDJSON_CPLUSPLUS17 +// on some systems, we simply do not have support for fallthrough, so use a default: +#ifndef simdjson_fallthrough +# define simdjson_fallthrough do {} while (0) /* fallthrough */ +#endif // simdjson_fallthrough + +#if SIMDJSON_DEVELOPMENT_CHECKS +#define SIMDJSON_DEVELOPMENT_ASSERT(expr) do { assert ((expr)); } while (0) +#else +#define SIMDJSON_DEVELOPMENT_ASSERT(expr) do { } while (0) +#endif + +#ifndef SIMDJSON_UTF8VALIDATION +#define SIMDJSON_UTF8VALIDATION 1 +#endif + +#ifdef __has_include +// How do we detect that a compiler supports vbmi2? +// For sure if the following header is found, we are ok? +#if __has_include() +#define SIMDJSON_COMPILER_SUPPORTS_VBMI2 1 +#endif +#endif + +#ifdef _MSC_VER +#if _MSC_VER >= 1920 +// Visual Studio 2019 and up support VBMI2 under x64 even if the header +// avx512vbmi2intrin.h is not found. +#define SIMDJSON_COMPILER_SUPPORTS_VBMI2 1 +#endif +#endif + +// By default, we allow AVX512. +#ifndef SIMDJSON_AVX512_ALLOWED +#define SIMDJSON_AVX512_ALLOWED 1 +#endif + +#endif // SIMDJSON_COMMON_DEFS_H +/* end file simdjson/common_defs.h */ +/* skipped duplicate #include "simdjson/compiler_check.h" */ +/* including simdjson/error.h: #include "simdjson/error.h" */ +/* begin file simdjson/error.h */ +#ifndef SIMDJSON_ERROR_H +#define SIMDJSON_ERROR_H + +/* skipped duplicate #include "simdjson/base.h" */ + +#include +#include + +namespace simdjson { + +/** + * All possible errors returned by simdjson. These error codes are subject to change + * and not all simdjson kernel returns the same error code given the same input: it is not + * well defined which error a given input should produce. + * + * Only SUCCESS evaluates to false as a Boolean. All other error codes will evaluate + * to true as a Boolean. + */ +enum error_code { + SUCCESS = 0, ///< No error + CAPACITY, ///< This parser can't support a document that big + MEMALLOC, ///< Error allocating memory, most likely out of memory + TAPE_ERROR, ///< Something went wrong, this is a generic error + DEPTH_ERROR, ///< Your document exceeds the user-specified depth limitation + STRING_ERROR, ///< Problem while parsing a string + T_ATOM_ERROR, ///< Problem while parsing an atom starting with the letter 't' + F_ATOM_ERROR, ///< Problem while parsing an atom starting with the letter 'f' + N_ATOM_ERROR, ///< Problem while parsing an atom starting with the letter 'n' + NUMBER_ERROR, ///< Problem while parsing a number + UTF8_ERROR, ///< the input is not valid UTF-8 + UNINITIALIZED, ///< unknown error, or uninitialized document + EMPTY, ///< no structural element found + UNESCAPED_CHARS, ///< found unescaped characters in a string. + UNCLOSED_STRING, ///< missing quote at the end + UNSUPPORTED_ARCHITECTURE, ///< unsupported architecture + INCORRECT_TYPE, ///< JSON element has a different type than user expected + NUMBER_OUT_OF_RANGE, ///< JSON number does not fit in 64 bits + INDEX_OUT_OF_BOUNDS, ///< JSON array index too large + NO_SUCH_FIELD, ///< JSON field not found in object + IO_ERROR, ///< Error reading a file + INVALID_JSON_POINTER, ///< Invalid JSON pointer reference + INVALID_URI_FRAGMENT, ///< Invalid URI fragment + UNEXPECTED_ERROR, ///< indicative of a bug in simdjson + PARSER_IN_USE, ///< parser is already in use. + OUT_OF_ORDER_ITERATION, ///< tried to iterate an array or object out of order + INSUFFICIENT_PADDING, ///< The JSON doesn't have enough padding for simdjson to safely parse it. + INCOMPLETE_ARRAY_OR_OBJECT, ///< The document ends early. + SCALAR_DOCUMENT_AS_VALUE, ///< A scalar document is treated as a value. + OUT_OF_BOUNDS, ///< Attempted to access location outside of document. + TRAILING_CONTENT, ///< Unexpected trailing content in the JSON input + NUM_ERROR_CODES +}; + +/** + * Get the error message for the given error code. + * + * dom::parser parser; + * dom::element doc; + * auto error = parser.parse("foo",3).get(doc); + * if (error) { printf("Error: %s\n", error_message(error)); } + * + * @return The error message. + */ +inline const char *error_message(error_code error) noexcept; + +/** + * Write the error message to the output stream + */ +inline std::ostream& operator<<(std::ostream& out, error_code error) noexcept; + +/** + * Exception thrown when an exception-supporting simdjson method is called + */ +struct simdjson_error : public std::exception { + /** + * Create an exception from a simdjson error code. + * @param error The error code + */ + simdjson_error(error_code error) noexcept : _error{error} { } + /** The error message */ + const char *what() const noexcept { return error_message(error()); } + /** The error code */ + error_code error() const noexcept { return _error; } +private: + /** The error code that was used */ + error_code _error; +}; + +namespace internal { + +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::simdjson_result_base { + * simdjson_result() noexcept : internal::simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct simdjson_result_base : protected std::pair { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline simdjson_result_base() noexcept; + + /** + * Create a new error result. + */ + simdjson_inline simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; + +}; // struct simdjson_result_base + +} // namespace internal + +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + */ +template +struct simdjson_result : public internal::simdjson_result_base { + /** + * @private Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline simdjson_result() noexcept; + /** + * @private Create a new error result. + */ + simdjson_inline simdjson_result(T &&value) noexcept; + /** + * @private Create a new successful result. + */ + simdjson_inline simdjson_result(error_code error_code) noexcept; + /** + * @private Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline simdjson_result(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_warn_unused simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; + +}; // struct simdjson_result + +#if SIMDJSON_EXCEPTIONS + +template +inline std::ostream& operator<<(std::ostream& out, simdjson_result value) { return out << value.value(); } +#endif // SIMDJSON_EXCEPTIONS + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +/** + * @deprecated This is an alias and will be removed, use error_code instead + */ +using ErrorValues [[deprecated("This is an alias and will be removed, use error_code instead")]] = error_code; + +/** + * @deprecated Error codes should be stored and returned as `error_code`, use `error_message()` instead. + */ +[[deprecated("Error codes should be stored and returned as `error_code`, use `error_message()` instead.")]] +inline const std::string error_message(int error) noexcept; +#endif // SIMDJSON_DISABLE_DEPRECATED_API +} // namespace simdjson + +#endif // SIMDJSON_ERROR_H +/* end file simdjson/error.h */ +/* skipped duplicate #include "simdjson/portability.h" */ + +/** + * @brief The top level simdjson namespace, containing everything the library provides. + */ +namespace simdjson { + +SIMDJSON_PUSH_DISABLE_UNUSED_WARNINGS + +/** The maximum document size supported by simdjson. */ +constexpr size_t SIMDJSON_MAXSIZE_BYTES = 0xFFFFFFFF; + +/** + * The amount of padding needed in a buffer to parse JSON. + * + * The input buf should be readable up to buf + SIMDJSON_PADDING + * this is a stopgap; there should be a better description of the + * main loop and its behavior that abstracts over this + * See https://github.com/simdjson/simdjson/issues/174 + */ +constexpr size_t SIMDJSON_PADDING = 64; + +/** + * By default, simdjson supports this many nested objects and arrays. + * + * This is the default for parser::max_depth(). + */ +constexpr size_t DEFAULT_MAX_DEPTH = 1024; + +SIMDJSON_POP_DISABLE_UNUSED_WARNINGS + +class implementation; +struct padded_string; +class padded_string_view; +enum class stage1_mode; + +namespace internal { + +template +class atomic_ptr; +class dom_parser_implementation; +class escape_json_string; +class tape_ref; +struct value128; +enum class tape_type; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_BASE_H +/* end file simdjson/base.h */ + +#endif // SIMDJSON_SRC_BASE_H +/* end file base.h */ + +SIMDJSON_PUSH_DISABLE_UNUSED_WARNINGS + +/* including to_chars.cpp: #include */ +/* begin file to_chars.cpp */ +#ifndef SIMDJSON_SRC_TO_CHARS_CPP +#define SIMDJSON_SRC_TO_CHARS_CPP + +/* skipped duplicate #include */ + +#include +#include +#include +#include + +namespace simdjson { +namespace internal { +/*! +implements the Grisu2 algorithm for binary to decimal floating-point +conversion. +Adapted from JSON for Modern C++ + +This implementation is a slightly modified version of the reference +implementation which may be obtained from +http://florian.loitsch.com/publications (bench.tar.gz). +The code is distributed under the MIT license, Copyright (c) 2009 Florian +Loitsch. For a detailed description of the algorithm see: [1] Loitsch, "Printing +Floating-Point Numbers Quickly and Accurately with Integers", Proceedings of the +ACM SIGPLAN 2010 Conference on Programming Language Design and Implementation, +PLDI 2010 [2] Burger, Dybvig, "Printing Floating-Point Numbers Quickly and +Accurately", Proceedings of the ACM SIGPLAN 1996 Conference on Programming +Language Design and Implementation, PLDI 1996 +*/ +namespace dtoa_impl { + +template +Target reinterpret_bits(const Source source) { + static_assert(sizeof(Target) == sizeof(Source), "size mismatch"); + + Target target; + std::memcpy(&target, &source, sizeof(Source)); + return target; +} + +struct diyfp // f * 2^e +{ + static constexpr int kPrecision = 64; // = q + + std::uint64_t f = 0; + int e = 0; + + constexpr diyfp(std::uint64_t f_, int e_) noexcept : f(f_), e(e_) {} + + /*! + @brief returns x - y + @pre x.e == y.e and x.f >= y.f + */ + static diyfp sub(const diyfp &x, const diyfp &y) noexcept { + + return {x.f - y.f, x.e}; + } + + /*! + @brief returns x * y + @note The result is rounded. (Only the upper q bits are returned.) + */ + static diyfp mul(const diyfp &x, const diyfp &y) noexcept { + static_assert(kPrecision == 64, "internal error"); + + // Computes: + // f = round((x.f * y.f) / 2^q) + // e = x.e + y.e + q + + // Emulate the 64-bit * 64-bit multiplication: + // + // p = u * v + // = (u_lo + 2^32 u_hi) (v_lo + 2^32 v_hi) + // = (u_lo v_lo ) + 2^32 ((u_lo v_hi ) + (u_hi v_lo )) + + // 2^64 (u_hi v_hi ) = (p0 ) + 2^32 ((p1 ) + (p2 )) + // + 2^64 (p3 ) = (p0_lo + 2^32 p0_hi) + 2^32 ((p1_lo + + // 2^32 p1_hi) + (p2_lo + 2^32 p2_hi)) + 2^64 (p3 ) = + // (p0_lo ) + 2^32 (p0_hi + p1_lo + p2_lo ) + 2^64 (p1_hi + + // p2_hi + p3) = (p0_lo ) + 2^32 (Q ) + 2^64 (H ) = (p0_lo ) + + // 2^32 (Q_lo + 2^32 Q_hi ) + 2^64 (H ) + // + // (Since Q might be larger than 2^32 - 1) + // + // = (p0_lo + 2^32 Q_lo) + 2^64 (Q_hi + H) + // + // (Q_hi + H does not overflow a 64-bit int) + // + // = p_lo + 2^64 p_hi + + const std::uint64_t u_lo = x.f & 0xFFFFFFFFu; + const std::uint64_t u_hi = x.f >> 32u; + const std::uint64_t v_lo = y.f & 0xFFFFFFFFu; + const std::uint64_t v_hi = y.f >> 32u; + + const std::uint64_t p0 = u_lo * v_lo; + const std::uint64_t p1 = u_lo * v_hi; + const std::uint64_t p2 = u_hi * v_lo; + const std::uint64_t p3 = u_hi * v_hi; + + const std::uint64_t p0_hi = p0 >> 32u; + const std::uint64_t p1_lo = p1 & 0xFFFFFFFFu; + const std::uint64_t p1_hi = p1 >> 32u; + const std::uint64_t p2_lo = p2 & 0xFFFFFFFFu; + const std::uint64_t p2_hi = p2 >> 32u; + + std::uint64_t Q = p0_hi + p1_lo + p2_lo; + + // The full product might now be computed as + // + // p_hi = p3 + p2_hi + p1_hi + (Q >> 32) + // p_lo = p0_lo + (Q << 32) + // + // But in this particular case here, the full p_lo is not required. + // Effectively we only need to add the highest bit in p_lo to p_hi (and + // Q_hi + 1 does not overflow). + + Q += std::uint64_t{1} << (64u - 32u - 1u); // round, ties up + + const std::uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32u); + + return {h, x.e + y.e + 64}; + } + + /*! + @brief normalize x such that the significand is >= 2^(q-1) + @pre x.f != 0 + */ + static diyfp normalize(diyfp x) noexcept { + + while ((x.f >> 63u) == 0) { + x.f <<= 1u; + x.e--; + } + + return x; + } + + /*! + @brief normalize x such that the result has the exponent E + @pre e >= x.e and the upper e - x.e bits of x.f must be zero. + */ + static diyfp normalize_to(const diyfp &x, + const int target_exponent) noexcept { + const int delta = x.e - target_exponent; + + return {x.f << delta, target_exponent}; + } +}; + +struct boundaries { + diyfp w; + diyfp minus; + diyfp plus; +}; + +/*! +Compute the (normalized) diyfp representing the input number 'value' and its +boundaries. +@pre value must be finite and positive +*/ +template boundaries compute_boundaries(FloatType value) { + + // Convert the IEEE representation into a diyfp. + // + // If v is denormal: + // value = 0.F * 2^(1 - bias) = ( F) * 2^(1 - bias - (p-1)) + // If v is normalized: + // value = 1.F * 2^(E - bias) = (2^(p-1) + F) * 2^(E - bias - (p-1)) + + static_assert(std::numeric_limits::is_iec559, + "internal error: dtoa_short requires an IEEE-754 " + "floating-point implementation"); + + constexpr int kPrecision = + std::numeric_limits::digits; // = p (includes the hidden bit) + constexpr int kBias = + std::numeric_limits::max_exponent - 1 + (kPrecision - 1); + constexpr int kMinExp = 1 - kBias; + constexpr std::uint64_t kHiddenBit = std::uint64_t{1} + << (kPrecision - 1); // = 2^(p-1) + + using bits_type = typename std::conditional::type; + + const std::uint64_t bits = reinterpret_bits(value); + const std::uint64_t E = bits >> (kPrecision - 1); + const std::uint64_t F = bits & (kHiddenBit - 1); + + const bool is_denormal = E == 0; + const diyfp v = is_denormal + ? diyfp(F, kMinExp) + : diyfp(F + kHiddenBit, static_cast(E) - kBias); + + // Compute the boundaries m- and m+ of the floating-point value + // v = f * 2^e. + // + // Determine v- and v+, the floating-point predecessor and successor if v, + // respectively. + // + // v- = v - 2^e if f != 2^(p-1) or e == e_min (A) + // = v - 2^(e-1) if f == 2^(p-1) and e > e_min (B) + // + // v+ = v + 2^e + // + // Let m- = (v- + v) / 2 and m+ = (v + v+) / 2. All real numbers _strictly_ + // between m- and m+ round to v, regardless of how the input rounding + // algorithm breaks ties. + // + // ---+-------------+-------------+-------------+-------------+--- (A) + // v- m- v m+ v+ + // + // -----------------+------+------+-------------+-------------+--- (B) + // v- m- v m+ v+ + + const bool lower_boundary_is_closer = F == 0 && E > 1; + const diyfp m_plus = diyfp(2 * v.f + 1, v.e - 1); + const diyfp m_minus = lower_boundary_is_closer + ? diyfp(4 * v.f - 1, v.e - 2) // (B) + : diyfp(2 * v.f - 1, v.e - 1); // (A) + + // Determine the normalized w+ = m+. + const diyfp w_plus = diyfp::normalize(m_plus); + + // Determine w- = m- such that e_(w-) = e_(w+). + const diyfp w_minus = diyfp::normalize_to(m_minus, w_plus.e); + + return {diyfp::normalize(v), w_minus, w_plus}; +} + +// Given normalized diyfp w, Grisu needs to find a (normalized) cached +// power-of-ten c, such that the exponent of the product c * w = f * 2^e lies +// within a certain range [alpha, gamma] (Definition 3.2 from [1]) +// +// alpha <= e = e_c + e_w + q <= gamma +// +// or +// +// f_c * f_w * 2^alpha <= f_c 2^(e_c) * f_w 2^(e_w) * 2^q +// <= f_c * f_w * 2^gamma +// +// Since c and w are normalized, i.e. 2^(q-1) <= f < 2^q, this implies +// +// 2^(q-1) * 2^(q-1) * 2^alpha <= c * w * 2^q < 2^q * 2^q * 2^gamma +// +// or +// +// 2^(q - 2 + alpha) <= c * w < 2^(q + gamma) +// +// The choice of (alpha,gamma) determines the size of the table and the form of +// the digit generation procedure. Using (alpha,gamma)=(-60,-32) works out well +// in practice: +// +// The idea is to cut the number c * w = f * 2^e into two parts, which can be +// processed independently: An integral part p1, and a fractional part p2: +// +// f * 2^e = ( (f div 2^-e) * 2^-e + (f mod 2^-e) ) * 2^e +// = (f div 2^-e) + (f mod 2^-e) * 2^e +// = p1 + p2 * 2^e +// +// The conversion of p1 into decimal form requires a series of divisions and +// modulos by (a power of) 10. These operations are faster for 32-bit than for +// 64-bit integers, so p1 should ideally fit into a 32-bit integer. This can be +// achieved by choosing +// +// -e >= 32 or e <= -32 := gamma +// +// In order to convert the fractional part +// +// p2 * 2^e = p2 / 2^-e = d[-1] / 10^1 + d[-2] / 10^2 + ... +// +// into decimal form, the fraction is repeatedly multiplied by 10 and the digits +// d[-i] are extracted in order: +// +// (10 * p2) div 2^-e = d[-1] +// (10 * p2) mod 2^-e = d[-2] / 10^1 + ... +// +// The multiplication by 10 must not overflow. It is sufficient to choose +// +// 10 * p2 < 16 * p2 = 2^4 * p2 <= 2^64. +// +// Since p2 = f mod 2^-e < 2^-e, +// +// -e <= 60 or e >= -60 := alpha + +constexpr int kAlpha = -60; +constexpr int kGamma = -32; + +struct cached_power // c = f * 2^e ~= 10^k +{ + std::uint64_t f; + int e; + int k; +}; + +/*! +For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached +power-of-ten c = f_c * 2^e_c, such that the exponent of the product w * c +satisfies (Definition 3.2 from [1]) + alpha <= e_c + e + q <= gamma. +*/ +inline cached_power get_cached_power_for_binary_exponent(int e) { + // Now + // + // alpha <= e_c + e + q <= gamma (1) + // ==> f_c * 2^alpha <= c * 2^e * 2^q + // + // and since the c's are normalized, 2^(q-1) <= f_c, + // + // ==> 2^(q - 1 + alpha) <= c * 2^(e + q) + // ==> 2^(alpha - e - 1) <= c + // + // If c were an exact power of ten, i.e. c = 10^k, one may determine k as + // + // k = ceil( log_10( 2^(alpha - e - 1) ) ) + // = ceil( (alpha - e - 1) * log_10(2) ) + // + // From the paper: + // "In theory the result of the procedure could be wrong since c is rounded, + // and the computation itself is approximated [...]. In practice, however, + // this simple function is sufficient." + // + // For IEEE double precision floating-point numbers converted into + // normalized diyfp's w = f * 2^e, with q = 64, + // + // e >= -1022 (min IEEE exponent) + // -52 (p - 1) + // -52 (p - 1, possibly normalize denormal IEEE numbers) + // -11 (normalize the diyfp) + // = -1137 + // + // and + // + // e <= +1023 (max IEEE exponent) + // -52 (p - 1) + // -11 (normalize the diyfp) + // = 960 + // + // This binary exponent range [-1137,960] results in a decimal exponent + // range [-307,324]. One does not need to store a cached power for each + // k in this range. For each such k it suffices to find a cached power + // such that the exponent of the product lies in [alpha,gamma]. + // This implies that the difference of the decimal exponents of adjacent + // table entries must be less than or equal to + // + // floor( (gamma - alpha) * log_10(2) ) = 8. + // + // (A smaller distance gamma-alpha would require a larger table.) + + // NB: + // Actually this function returns c, such that -60 <= e_c + e + 64 <= -34. + + constexpr int kCachedPowersMinDecExp = -300; + constexpr int kCachedPowersDecStep = 8; + + static constexpr std::array kCachedPowers = {{ + {0xAB70FE17C79AC6CA, -1060, -300}, {0xFF77B1FCBEBCDC4F, -1034, -292}, + {0xBE5691EF416BD60C, -1007, -284}, {0x8DD01FAD907FFC3C, -980, -276}, + {0xD3515C2831559A83, -954, -268}, {0x9D71AC8FADA6C9B5, -927, -260}, + {0xEA9C227723EE8BCB, -901, -252}, {0xAECC49914078536D, -874, -244}, + {0x823C12795DB6CE57, -847, -236}, {0xC21094364DFB5637, -821, -228}, + {0x9096EA6F3848984F, -794, -220}, {0xD77485CB25823AC7, -768, -212}, + {0xA086CFCD97BF97F4, -741, -204}, {0xEF340A98172AACE5, -715, -196}, + {0xB23867FB2A35B28E, -688, -188}, {0x84C8D4DFD2C63F3B, -661, -180}, + {0xC5DD44271AD3CDBA, -635, -172}, {0x936B9FCEBB25C996, -608, -164}, + {0xDBAC6C247D62A584, -582, -156}, {0xA3AB66580D5FDAF6, -555, -148}, + {0xF3E2F893DEC3F126, -529, -140}, {0xB5B5ADA8AAFF80B8, -502, -132}, + {0x87625F056C7C4A8B, -475, -124}, {0xC9BCFF6034C13053, -449, -116}, + {0x964E858C91BA2655, -422, -108}, {0xDFF9772470297EBD, -396, -100}, + {0xA6DFBD9FB8E5B88F, -369, -92}, {0xF8A95FCF88747D94, -343, -84}, + {0xB94470938FA89BCF, -316, -76}, {0x8A08F0F8BF0F156B, -289, -68}, + {0xCDB02555653131B6, -263, -60}, {0x993FE2C6D07B7FAC, -236, -52}, + {0xE45C10C42A2B3B06, -210, -44}, {0xAA242499697392D3, -183, -36}, + {0xFD87B5F28300CA0E, -157, -28}, {0xBCE5086492111AEB, -130, -20}, + {0x8CBCCC096F5088CC, -103, -12}, {0xD1B71758E219652C, -77, -4}, + {0x9C40000000000000, -50, 4}, {0xE8D4A51000000000, -24, 12}, + {0xAD78EBC5AC620000, 3, 20}, {0x813F3978F8940984, 30, 28}, + {0xC097CE7BC90715B3, 56, 36}, {0x8F7E32CE7BEA5C70, 83, 44}, + {0xD5D238A4ABE98068, 109, 52}, {0x9F4F2726179A2245, 136, 60}, + {0xED63A231D4C4FB27, 162, 68}, {0xB0DE65388CC8ADA8, 189, 76}, + {0x83C7088E1AAB65DB, 216, 84}, {0xC45D1DF942711D9A, 242, 92}, + {0x924D692CA61BE758, 269, 100}, {0xDA01EE641A708DEA, 295, 108}, + {0xA26DA3999AEF774A, 322, 116}, {0xF209787BB47D6B85, 348, 124}, + {0xB454E4A179DD1877, 375, 132}, {0x865B86925B9BC5C2, 402, 140}, + {0xC83553C5C8965D3D, 428, 148}, {0x952AB45CFA97A0B3, 455, 156}, + {0xDE469FBD99A05FE3, 481, 164}, {0xA59BC234DB398C25, 508, 172}, + {0xF6C69A72A3989F5C, 534, 180}, {0xB7DCBF5354E9BECE, 561, 188}, + {0x88FCF317F22241E2, 588, 196}, {0xCC20CE9BD35C78A5, 614, 204}, + {0x98165AF37B2153DF, 641, 212}, {0xE2A0B5DC971F303A, 667, 220}, + {0xA8D9D1535CE3B396, 694, 228}, {0xFB9B7CD9A4A7443C, 720, 236}, + {0xBB764C4CA7A44410, 747, 244}, {0x8BAB8EEFB6409C1A, 774, 252}, + {0xD01FEF10A657842C, 800, 260}, {0x9B10A4E5E9913129, 827, 268}, + {0xE7109BFBA19C0C9D, 853, 276}, {0xAC2820D9623BF429, 880, 284}, + {0x80444B5E7AA7CF85, 907, 292}, {0xBF21E44003ACDD2D, 933, 300}, + {0x8E679C2F5E44FF8F, 960, 308}, {0xD433179D9C8CB841, 986, 316}, + {0x9E19DB92B4E31BA9, 1013, 324}, + }}; + + // This computation gives exactly the same results for k as + // k = ceil((kAlpha - e - 1) * 0.30102999566398114) + // for |e| <= 1500, but doesn't require floating-point operations. + // NB: log_10(2) ~= 78913 / 2^18 + const int f = kAlpha - e - 1; + const int k = (f * 78913) / (1 << 18) + static_cast(f > 0); + + const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / + kCachedPowersDecStep; + + const cached_power cached = kCachedPowers[static_cast(index)]; + + return cached; +} + +/*! +For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k. +For n == 0, returns 1 and sets pow10 := 1. +*/ +inline int find_largest_pow10(const std::uint32_t n, std::uint32_t &pow10) { + // LCOV_EXCL_START + if (n >= 1000000000) { + pow10 = 1000000000; + return 10; + } + // LCOV_EXCL_STOP + else if (n >= 100000000) { + pow10 = 100000000; + return 9; + } else if (n >= 10000000) { + pow10 = 10000000; + return 8; + } else if (n >= 1000000) { + pow10 = 1000000; + return 7; + } else if (n >= 100000) { + pow10 = 100000; + return 6; + } else if (n >= 10000) { + pow10 = 10000; + return 5; + } else if (n >= 1000) { + pow10 = 1000; + return 4; + } else if (n >= 100) { + pow10 = 100; + return 3; + } else if (n >= 10) { + pow10 = 10; + return 2; + } else { + pow10 = 1; + return 1; + } +} + +inline void grisu2_round(char *buf, int len, std::uint64_t dist, + std::uint64_t delta, std::uint64_t rest, + std::uint64_t ten_k) { + + // <--------------------------- delta ----> + // <---- dist ---------> + // --------------[------------------+-------------------]-------------- + // M- w M+ + // + // ten_k + // <------> + // <---- rest ----> + // --------------[------------------+----+--------------]-------------- + // w V + // = buf * 10^k + // + // ten_k represents a unit-in-the-last-place in the decimal representation + // stored in buf. + // Decrement buf by ten_k while this takes buf closer to w. + + // The tests are written in this order to avoid overflow in unsigned + // integer arithmetic. + + while (rest < dist && delta - rest >= ten_k && + (rest + ten_k < dist || dist - rest > rest + ten_k - dist)) { + buf[len - 1]--; + rest += ten_k; + } +} + +/*! +Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. +M- and M+ must be normalized and share the same exponent -60 <= e <= -32. +*/ +inline void grisu2_digit_gen(char *buffer, int &length, int &decimal_exponent, + diyfp M_minus, diyfp w, diyfp M_plus) { + static_assert(kAlpha >= -60, "internal error"); + static_assert(kGamma <= -32, "internal error"); + + // Generates the digits (and the exponent) of a decimal floating-point + // number V = buffer * 10^decimal_exponent in the range [M-, M+]. The diyfp's + // w, M- and M+ share the same exponent e, which satisfies alpha <= e <= + // gamma. + // + // <--------------------------- delta ----> + // <---- dist ---------> + // --------------[------------------+-------------------]-------------- + // M- w M+ + // + // Grisu2 generates the digits of M+ from left to right and stops as soon as + // V is in [M-,M+]. + + std::uint64_t delta = + diyfp::sub(M_plus, M_minus) + .f; // (significand of (M+ - M-), implicit exponent is e) + std::uint64_t dist = + diyfp::sub(M_plus, w) + .f; // (significand of (M+ - w ), implicit exponent is e) + + // Split M+ = f * 2^e into two parts p1 and p2 (note: e < 0): + // + // M+ = f * 2^e + // = ((f div 2^-e) * 2^-e + (f mod 2^-e)) * 2^e + // = ((p1 ) * 2^-e + (p2 )) * 2^e + // = p1 + p2 * 2^e + + const diyfp one(std::uint64_t{1} << -M_plus.e, M_plus.e); + + auto p1 = static_cast( + M_plus.f >> + -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.) + std::uint64_t p2 = M_plus.f & (one.f - 1); // p2 = f mod 2^-e + + // 1) + // + // Generate the digits of the integral part p1 = d[n-1]...d[1]d[0] + + std::uint32_t pow10; + const int k = find_largest_pow10(p1, pow10); + + // 10^(k-1) <= p1 < 10^k, pow10 = 10^(k-1) + // + // p1 = (p1 div 10^(k-1)) * 10^(k-1) + (p1 mod 10^(k-1)) + // = (d[k-1] ) * 10^(k-1) + (p1 mod 10^(k-1)) + // + // M+ = p1 + p2 * 2^e + // = d[k-1] * 10^(k-1) + (p1 mod 10^(k-1)) + p2 * 2^e + // = d[k-1] * 10^(k-1) + ((p1 mod 10^(k-1)) * 2^-e + p2) * 2^e + // = d[k-1] * 10^(k-1) + ( rest) * 2^e + // + // Now generate the digits d[n] of p1 from left to right (n = k-1,...,0) + // + // p1 = d[k-1]...d[n] * 10^n + d[n-1]...d[0] + // + // but stop as soon as + // + // rest * 2^e = (d[n-1]...d[0] * 2^-e + p2) * 2^e <= delta * 2^e + + int n = k; + while (n > 0) { + // Invariants: + // M+ = buffer * 10^n + (p1 + p2 * 2^e) (buffer = 0 for n = k) + // pow10 = 10^(n-1) <= p1 < 10^n + // + const std::uint32_t d = p1 / pow10; // d = p1 div 10^(n-1) + const std::uint32_t r = p1 % pow10; // r = p1 mod 10^(n-1) + // + // M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e + // = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e) + // + buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d + // + // M+ = buffer * 10^(n-1) + (r + p2 * 2^e) + // + p1 = r; + n--; + // + // M+ = buffer * 10^n + (p1 + p2 * 2^e) + // pow10 = 10^n + // + + // Now check if enough digits have been generated. + // Compute + // + // p1 + p2 * 2^e = (p1 * 2^-e + p2) * 2^e = rest * 2^e + // + // Note: + // Since rest and delta share the same exponent e, it suffices to + // compare the significands. + const std::uint64_t rest = (std::uint64_t{p1} << -one.e) + p2; + if (rest <= delta) { + // V = buffer * 10^n, with M- <= V <= M+. + + decimal_exponent += n; + + // We may now just stop. But instead look if the buffer could be + // decremented to bring V closer to w. + // + // pow10 = 10^n is now 1 ulp in the decimal representation V. + // The rounding procedure works with diyfp's with an implicit + // exponent of e. + // + // 10^n = (10^n * 2^-e) * 2^e = ulp * 2^e + // + const std::uint64_t ten_n = std::uint64_t{pow10} << -one.e; + grisu2_round(buffer, length, dist, delta, rest, ten_n); + + return; + } + + pow10 /= 10; + // + // pow10 = 10^(n-1) <= p1 < 10^n + // Invariants restored. + } + + // 2) + // + // The digits of the integral part have been generated: + // + // M+ = d[k-1]...d[1]d[0] + p2 * 2^e + // = buffer + p2 * 2^e + // + // Now generate the digits of the fractional part p2 * 2^e. + // + // Note: + // No decimal point is generated: the exponent is adjusted instead. + // + // p2 actually represents the fraction + // + // p2 * 2^e + // = p2 / 2^-e + // = d[-1] / 10^1 + d[-2] / 10^2 + ... + // + // Now generate the digits d[-m] of p1 from left to right (m = 1,2,...) + // + // p2 * 2^e = d[-1]d[-2]...d[-m] * 10^-m + // + 10^-m * (d[-m-1] / 10^1 + d[-m-2] / 10^2 + ...) + // + // using + // + // 10^m * p2 = ((10^m * p2) div 2^-e) * 2^-e + ((10^m * p2) mod 2^-e) + // = ( d) * 2^-e + ( r) + // + // or + // 10^m * p2 * 2^e = d + r * 2^e + // + // i.e. + // + // M+ = buffer + p2 * 2^e + // = buffer + 10^-m * (d + r * 2^e) + // = (buffer * 10^m + d) * 10^-m + 10^-m * r * 2^e + // + // and stop as soon as 10^-m * r * 2^e <= delta * 2^e + + int m = 0; + for (;;) { + // Invariant: + // M+ = buffer * 10^-m + 10^-m * (d[-m-1] / 10 + d[-m-2] / 10^2 + ...) + // * 2^e + // = buffer * 10^-m + 10^-m * (p2 ) + // * 2^e = buffer * 10^-m + 10^-m * (1/10 * (10 * p2) ) * 2^e = + // buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + + // (10*p2 mod 2^-e)) * 2^e + // + p2 *= 10; + const std::uint64_t d = p2 >> -one.e; // d = (10 * p2) div 2^-e + const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e + // + // M+ = buffer * 10^-m + 10^-m * (1/10 * (d * 2^-e + r) * 2^e + // = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e)) + // = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e + // + buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d + // + // M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e + // + p2 = r; + m++; + // + // M+ = buffer * 10^-m + 10^-m * p2 * 2^e + // Invariant restored. + + // Check if enough digits have been generated. + // + // 10^-m * p2 * 2^e <= delta * 2^e + // p2 * 2^e <= 10^m * delta * 2^e + // p2 <= 10^m * delta + delta *= 10; + dist *= 10; + if (p2 <= delta) { + break; + } + } + + // V = buffer * 10^-m, with M- <= V <= M+. + + decimal_exponent -= m; + + // 1 ulp in the decimal representation is now 10^-m. + // Since delta and dist are now scaled by 10^m, we need to do the + // same with ulp in order to keep the units in sync. + // + // 10^m * 10^-m = 1 = 2^-e * 2^e = ten_m * 2^e + // + const std::uint64_t ten_m = one.f; + grisu2_round(buffer, length, dist, delta, p2, ten_m); + + // By construction this algorithm generates the shortest possible decimal + // number (Loitsch, Theorem 6.2) which rounds back to w. + // For an input number of precision p, at least + // + // N = 1 + ceil(p * log_10(2)) + // + // decimal digits are sufficient to identify all binary floating-point + // numbers (Matula, "In-and-Out conversions"). + // This implies that the algorithm does not produce more than N decimal + // digits. + // + // N = 17 for p = 53 (IEEE double precision) + // N = 9 for p = 24 (IEEE single precision) +} + +/*! +v = buf * 10^decimal_exponent +len is the length of the buffer (number of decimal digits) +The buffer must be large enough, i.e. >= max_digits10. +*/ +inline void grisu2(char *buf, int &len, int &decimal_exponent, diyfp m_minus, + diyfp v, diyfp m_plus) { + + // --------(-----------------------+-----------------------)-------- (A) + // m- v m+ + // + // --------------------(-----------+-----------------------)-------- (B) + // m- v m+ + // + // First scale v (and m- and m+) such that the exponent is in the range + // [alpha, gamma]. + + const cached_power cached = get_cached_power_for_binary_exponent(m_plus.e); + + const diyfp c_minus_k(cached.f, cached.e); // = c ~= 10^-k + + // The exponent of the products is = v.e + c_minus_k.e + q and is in the range + // [alpha,gamma] + const diyfp w = diyfp::mul(v, c_minus_k); + const diyfp w_minus = diyfp::mul(m_minus, c_minus_k); + const diyfp w_plus = diyfp::mul(m_plus, c_minus_k); + + // ----(---+---)---------------(---+---)---------------(---+---)---- + // w- w w+ + // = c*m- = c*v = c*m+ + // + // diyfp::mul rounds its result and c_minus_k is approximated too. w, w- and + // w+ are now off by a small amount. + // In fact: + // + // w - v * 10^k < 1 ulp + // + // To account for this inaccuracy, add resp. subtract 1 ulp. + // + // --------+---[---------------(---+---)---------------]---+-------- + // w- M- w M+ w+ + // + // Now any number in [M-, M+] (bounds included) will round to w when input, + // regardless of how the input rounding algorithm breaks ties. + // + // And digit_gen generates the shortest possible such number in [M-, M+]. + // Note that this does not mean that Grisu2 always generates the shortest + // possible number in the interval (m-, m+). + const diyfp M_minus(w_minus.f + 1, w_minus.e); + const diyfp M_plus(w_plus.f - 1, w_plus.e); + + decimal_exponent = -cached.k; // = -(-k) = k + + grisu2_digit_gen(buf, len, decimal_exponent, M_minus, w, M_plus); +} + +/*! +v = buf * 10^decimal_exponent +len is the length of the buffer (number of decimal digits) +The buffer must be large enough, i.e. >= max_digits10. +*/ +template +void grisu2(char *buf, int &len, int &decimal_exponent, FloatType value) { + static_assert(diyfp::kPrecision >= std::numeric_limits::digits + 3, + "internal error: not enough precision"); + + // If the neighbors (and boundaries) of 'value' are always computed for + // double-precision numbers, all float's can be recovered using strtod (and + // strtof). However, the resulting decimal representations are not exactly + // "short". + // + // The documentation for 'std::to_chars' + // (https://en.cppreference.com/w/cpp/utility/to_chars) says "value is + // converted to a string as if by std::sprintf in the default ("C") locale" + // and since sprintf promotes float's to double's, I think this is exactly + // what 'std::to_chars' does. On the other hand, the documentation for + // 'std::to_chars' requires that "parsing the representation using the + // corresponding std::from_chars function recovers value exactly". That + // indicates that single precision floating-point numbers should be recovered + // using 'std::strtof'. + // + // NB: If the neighbors are computed for single-precision numbers, there is a + // single float + // (7.0385307e-26f) which can't be recovered using strtod. The resulting + // double precision value is off by 1 ulp. +#if 0 + const boundaries w = compute_boundaries(static_cast(value)); +#else + const boundaries w = compute_boundaries(value); +#endif + + grisu2(buf, len, decimal_exponent, w.minus, w.w, w.plus); +} + +/*! +@brief appends a decimal representation of e to buf +@return a pointer to the element following the exponent. +@pre -1000 < e < 1000 +*/ +inline char *append_exponent(char *buf, int e) { + + if (e < 0) { + e = -e; + *buf++ = '-'; + } else { + *buf++ = '+'; + } + + auto k = static_cast(e); + if (k < 10) { + // Always print at least two digits in the exponent. + // This is for compatibility with printf("%g"). + *buf++ = '0'; + *buf++ = static_cast('0' + k); + } else if (k < 100) { + *buf++ = static_cast('0' + k / 10); + k %= 10; + *buf++ = static_cast('0' + k); + } else { + *buf++ = static_cast('0' + k / 100); + k %= 100; + *buf++ = static_cast('0' + k / 10); + k %= 10; + *buf++ = static_cast('0' + k); + } + + return buf; +} + +/*! +@brief prettify v = buf * 10^decimal_exponent +If v is in the range [10^min_exp, 10^max_exp) it will be printed in fixed-point +notation. Otherwise it will be printed in exponential notation. +@pre min_exp < 0 +@pre max_exp > 0 +*/ +inline char *format_buffer(char *buf, int len, int decimal_exponent, + int min_exp, int max_exp) { + + const int k = len; + const int n = len + decimal_exponent; + + // v = buf * 10^(n-k) + // k is the length of the buffer (number of decimal digits) + // n is the position of the decimal point relative to the start of the buffer. + + if (k <= n && n <= max_exp) { + // digits[000] + // len <= max_exp + 2 + + std::memset(buf + k, '0', static_cast(n) - static_cast(k)); + // Make it look like a floating-point number (#362, #378) + buf[n + 0] = '.'; + buf[n + 1] = '0'; + return buf + (static_cast(n)) + 2; + } + + if (0 < n && n <= max_exp) { + // dig.its + // len <= max_digits10 + 1 + std::memmove(buf + (static_cast(n) + 1), buf + n, + static_cast(k) - static_cast(n)); + buf[n] = '.'; + return buf + (static_cast(k) + 1U); + } + + if (min_exp < n && n <= 0) { + // 0.[000]digits + // len <= 2 + (-min_exp - 1) + max_digits10 + + std::memmove(buf + (2 + static_cast(-n)), buf, + static_cast(k)); + buf[0] = '0'; + buf[1] = '.'; + std::memset(buf + 2, '0', static_cast(-n)); + return buf + (2U + static_cast(-n) + static_cast(k)); + } + + if (k == 1) { + // dE+123 + // len <= 1 + 5 + + buf += 1; + } else { + // d.igitsE+123 + // len <= max_digits10 + 1 + 5 + + std::memmove(buf + 2, buf + 1, static_cast(k) - 1); + buf[1] = '.'; + buf += 1 + static_cast(k); + } + + *buf++ = 'e'; + return append_exponent(buf, n - 1); +} + +} // namespace dtoa_impl + +/*! +The format of the resulting decimal representation is similar to printf's %g +format. Returns an iterator pointing past-the-end of the decimal representation. +@note The input number must be finite, i.e. NaN's and Inf's are not supported. +@note The buffer must be large enough. +@note The result is NOT null-terminated. +*/ +char *to_chars(char *first, const char *last, double value) { + static_cast(last); // maybe unused - fix warning + bool negative = std::signbit(value); + if (negative) { + value = -value; + *first++ = '-'; + } + + if (value == 0) // +-0 + { + *first++ = '0'; + // Make it look like a floating-point number (#362, #378) + *first++ = '.'; + *first++ = '0'; + return first; + } + // Compute v = buffer * 10^decimal_exponent. + // The decimal digits are stored in the buffer, which needs to be interpreted + // as an unsigned decimal integer. + // len is the length of the buffer, i.e. the number of decimal digits. + int len = 0; + int decimal_exponent = 0; + dtoa_impl::grisu2(first, len, decimal_exponent, value); + // Format the buffer like printf("%.*g", prec, value) + constexpr int kMinExp = -4; + constexpr int kMaxExp = std::numeric_limits::digits10; + + return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, + kMaxExp); +} +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_SRC_TO_CHARS_CPP +/* end file to_chars.cpp */ +/* including from_chars.cpp: #include */ +/* begin file from_chars.cpp */ +#ifndef SIMDJSON_SRC_FROM_CHARS_CPP +#define SIMDJSON_SRC_FROM_CHARS_CPP + +/* skipped duplicate #include */ + +#include +#include +#include + +namespace simdjson { +namespace internal { + +/** + * The code in the internal::from_chars function is meant to handle the floating-point number parsing + * when we have more than 19 digits in the decimal mantissa. This should only be seen + * in adversarial scenarios: we do not expect production systems to even produce + * such floating-point numbers. + * + * The parser is based on work by Nigel Tao (at https://github.com/google/wuffs/) + * who credits Ken Thompson for the design (via a reference to the Go source + * code). See + * https://github.com/google/wuffs/blob/aa46859ea40c72516deffa1b146121952d6dfd3b/internal/cgen/base/floatconv-submodule-data.c + * https://github.com/google/wuffs/blob/46cd8105f47ca07ae2ba8e6a7818ef9c0df6c152/internal/cgen/base/floatconv-submodule-code.c + * It is probably not very fast but it is a fallback that should almost never be + * called in real life. Google Wuffs is published under APL 2.0. + **/ + +namespace { +constexpr uint32_t max_digits = 768; +constexpr int32_t decimal_point_range = 2047; +} // namespace + +struct adjusted_mantissa { + uint64_t mantissa; + int power2; + adjusted_mantissa() : mantissa(0), power2(0) {} +}; + +struct decimal { + uint32_t num_digits; + int32_t decimal_point; + bool negative; + bool truncated; + uint8_t digits[max_digits]; +}; + +template struct binary_format { + static constexpr int mantissa_explicit_bits(); + static constexpr int minimum_exponent(); + static constexpr int infinite_power(); + static constexpr int sign_index(); +}; + +template <> constexpr int binary_format::mantissa_explicit_bits() { + return 52; +} + +template <> constexpr int binary_format::minimum_exponent() { + return -1023; +} +template <> constexpr int binary_format::infinite_power() { + return 0x7FF; +} + +template <> constexpr int binary_format::sign_index() { return 63; } + +bool is_integer(char c) noexcept { return (c >= '0' && c <= '9'); } + +// This should always succeed since it follows a call to parse_number. +decimal parse_decimal(const char *&p) noexcept { + decimal answer; + answer.num_digits = 0; + answer.decimal_point = 0; + answer.truncated = false; + answer.negative = (*p == '-'); + if ((*p == '-') || (*p == '+')) { + ++p; + } + + while (*p == '0') { + ++p; + } + while (is_integer(*p)) { + if (answer.num_digits < max_digits) { + answer.digits[answer.num_digits] = uint8_t(*p - '0'); + } + answer.num_digits++; + ++p; + } + if (*p == '.') { + ++p; + const char *first_after_period = p; + // if we have not yet encountered a zero, we have to skip it as well + if (answer.num_digits == 0) { + // skip zeros + while (*p == '0') { + ++p; + } + } + while (is_integer(*p)) { + if (answer.num_digits < max_digits) { + answer.digits[answer.num_digits] = uint8_t(*p - '0'); + } + answer.num_digits++; + ++p; + } + answer.decimal_point = int32_t(first_after_period - p); + } + if(answer.num_digits > 0) { + const char *preverse = p - 1; + int32_t trailing_zeros = 0; + while ((*preverse == '0') || (*preverse == '.')) { + if(*preverse == '0') { trailing_zeros++; }; + --preverse; + } + answer.decimal_point += int32_t(answer.num_digits); + answer.num_digits -= uint32_t(trailing_zeros); + } + if(answer.num_digits > max_digits ) { + answer.num_digits = max_digits; + answer.truncated = true; + } + if (('e' == *p) || ('E' == *p)) { + ++p; + bool neg_exp = false; + if ('-' == *p) { + neg_exp = true; + ++p; + } else if ('+' == *p) { + ++p; + } + int32_t exp_number = 0; // exponential part + while (is_integer(*p)) { + uint8_t digit = uint8_t(*p - '0'); + if (exp_number < 0x10000) { + exp_number = 10 * exp_number + digit; + } + ++p; + } + answer.decimal_point += (neg_exp ? -exp_number : exp_number); + } + return answer; +} + +// This should always succeed since it follows a call to parse_number. +// Will not read at or beyond the "end" pointer. +decimal parse_decimal(const char *&p, const char * end) noexcept { + decimal answer; + answer.num_digits = 0; + answer.decimal_point = 0; + answer.truncated = false; + if(p == end) { return answer; } // should never happen + answer.negative = (*p == '-'); + if ((*p == '-') || (*p == '+')) { + ++p; + } + + while ((p != end) && (*p == '0')) { + ++p; + } + while ((p != end) && is_integer(*p)) { + if (answer.num_digits < max_digits) { + answer.digits[answer.num_digits] = uint8_t(*p - '0'); + } + answer.num_digits++; + ++p; + } + if ((p != end) && (*p == '.')) { + ++p; + if(p == end) { return answer; } // should never happen + const char *first_after_period = p; + // if we have not yet encountered a zero, we have to skip it as well + if (answer.num_digits == 0) { + // skip zeros + while (*p == '0') { + ++p; + } + } + while ((p != end) && is_integer(*p)) { + if (answer.num_digits < max_digits) { + answer.digits[answer.num_digits] = uint8_t(*p - '0'); + } + answer.num_digits++; + ++p; + } + answer.decimal_point = int32_t(first_after_period - p); + } + if(answer.num_digits > 0) { + const char *preverse = p - 1; + int32_t trailing_zeros = 0; + while ((*preverse == '0') || (*preverse == '.')) { + if(*preverse == '0') { trailing_zeros++; }; + --preverse; + } + answer.decimal_point += int32_t(answer.num_digits); + answer.num_digits -= uint32_t(trailing_zeros); + } + if(answer.num_digits > max_digits ) { + answer.num_digits = max_digits; + answer.truncated = true; + } + if ((p != end) && (('e' == *p) || ('E' == *p))) { + ++p; + if(p == end) { return answer; } // should never happen + bool neg_exp = false; + if ('-' == *p) { + neg_exp = true; + ++p; + } else if ('+' == *p) { + ++p; + } + int32_t exp_number = 0; // exponential part + while ((p != end) && is_integer(*p)) { + uint8_t digit = uint8_t(*p - '0'); + if (exp_number < 0x10000) { + exp_number = 10 * exp_number + digit; + } + ++p; + } + answer.decimal_point += (neg_exp ? -exp_number : exp_number); + } + return answer; +} + +namespace { + +// remove all final zeroes +inline void trim(decimal &h) { + while ((h.num_digits > 0) && (h.digits[h.num_digits - 1] == 0)) { + h.num_digits--; + } +} + +uint32_t number_of_digits_decimal_left_shift(decimal &h, uint32_t shift) { + shift &= 63; + const static uint16_t number_of_digits_decimal_left_shift_table[65] = { + 0x0000, 0x0800, 0x0801, 0x0803, 0x1006, 0x1009, 0x100D, 0x1812, 0x1817, + 0x181D, 0x2024, 0x202B, 0x2033, 0x203C, 0x2846, 0x2850, 0x285B, 0x3067, + 0x3073, 0x3080, 0x388E, 0x389C, 0x38AB, 0x38BB, 0x40CC, 0x40DD, 0x40EF, + 0x4902, 0x4915, 0x4929, 0x513E, 0x5153, 0x5169, 0x5180, 0x5998, 0x59B0, + 0x59C9, 0x61E3, 0x61FD, 0x6218, 0x6A34, 0x6A50, 0x6A6D, 0x6A8B, 0x72AA, + 0x72C9, 0x72E9, 0x7B0A, 0x7B2B, 0x7B4D, 0x8370, 0x8393, 0x83B7, 0x83DC, + 0x8C02, 0x8C28, 0x8C4F, 0x9477, 0x949F, 0x94C8, 0x9CF2, 0x051C, 0x051C, + 0x051C, 0x051C, + }; + uint32_t x_a = number_of_digits_decimal_left_shift_table[shift]; + uint32_t x_b = number_of_digits_decimal_left_shift_table[shift + 1]; + uint32_t num_new_digits = x_a >> 11; + uint32_t pow5_a = 0x7FF & x_a; + uint32_t pow5_b = 0x7FF & x_b; + const static uint8_t + number_of_digits_decimal_left_shift_table_powers_of_5[0x051C] = { + 5, 2, 5, 1, 2, 5, 6, 2, 5, 3, 1, 2, 5, 1, 5, 6, 2, 5, 7, 8, 1, 2, 5, + 3, 9, 0, 6, 2, 5, 1, 9, 5, 3, 1, 2, 5, 9, 7, 6, 5, 6, 2, 5, 4, 8, 8, + 2, 8, 1, 2, 5, 2, 4, 4, 1, 4, 0, 6, 2, 5, 1, 2, 2, 0, 7, 0, 3, 1, 2, + 5, 6, 1, 0, 3, 5, 1, 5, 6, 2, 5, 3, 0, 5, 1, 7, 5, 7, 8, 1, 2, 5, 1, + 5, 2, 5, 8, 7, 8, 9, 0, 6, 2, 5, 7, 6, 2, 9, 3, 9, 4, 5, 3, 1, 2, 5, + 3, 8, 1, 4, 6, 9, 7, 2, 6, 5, 6, 2, 5, 1, 9, 0, 7, 3, 4, 8, 6, 3, 2, + 8, 1, 2, 5, 9, 5, 3, 6, 7, 4, 3, 1, 6, 4, 0, 6, 2, 5, 4, 7, 6, 8, 3, + 7, 1, 5, 8, 2, 0, 3, 1, 2, 5, 2, 3, 8, 4, 1, 8, 5, 7, 9, 1, 0, 1, 5, + 6, 2, 5, 1, 1, 9, 2, 0, 9, 2, 8, 9, 5, 5, 0, 7, 8, 1, 2, 5, 5, 9, 6, + 0, 4, 6, 4, 4, 7, 7, 5, 3, 9, 0, 6, 2, 5, 2, 9, 8, 0, 2, 3, 2, 2, 3, + 8, 7, 6, 9, 5, 3, 1, 2, 5, 1, 4, 9, 0, 1, 1, 6, 1, 1, 9, 3, 8, 4, 7, + 6, 5, 6, 2, 5, 7, 4, 5, 0, 5, 8, 0, 5, 9, 6, 9, 2, 3, 8, 2, 8, 1, 2, + 5, 3, 7, 2, 5, 2, 9, 0, 2, 9, 8, 4, 6, 1, 9, 1, 4, 0, 6, 2, 5, 1, 8, + 6, 2, 6, 4, 5, 1, 4, 9, 2, 3, 0, 9, 5, 7, 0, 3, 1, 2, 5, 9, 3, 1, 3, + 2, 2, 5, 7, 4, 6, 1, 5, 4, 7, 8, 5, 1, 5, 6, 2, 5, 4, 6, 5, 6, 6, 1, + 2, 8, 7, 3, 0, 7, 7, 3, 9, 2, 5, 7, 8, 1, 2, 5, 2, 3, 2, 8, 3, 0, 6, + 4, 3, 6, 5, 3, 8, 6, 9, 6, 2, 8, 9, 0, 6, 2, 5, 1, 1, 6, 4, 1, 5, 3, + 2, 1, 8, 2, 6, 9, 3, 4, 8, 1, 4, 4, 5, 3, 1, 2, 5, 5, 8, 2, 0, 7, 6, + 6, 0, 9, 1, 3, 4, 6, 7, 4, 0, 7, 2, 2, 6, 5, 6, 2, 5, 2, 9, 1, 0, 3, + 8, 3, 0, 4, 5, 6, 7, 3, 3, 7, 0, 3, 6, 1, 3, 2, 8, 1, 2, 5, 1, 4, 5, + 5, 1, 9, 1, 5, 2, 2, 8, 3, 6, 6, 8, 5, 1, 8, 0, 6, 6, 4, 0, 6, 2, 5, + 7, 2, 7, 5, 9, 5, 7, 6, 1, 4, 1, 8, 3, 4, 2, 5, 9, 0, 3, 3, 2, 0, 3, + 1, 2, 5, 3, 6, 3, 7, 9, 7, 8, 8, 0, 7, 0, 9, 1, 7, 1, 2, 9, 5, 1, 6, + 6, 0, 1, 5, 6, 2, 5, 1, 8, 1, 8, 9, 8, 9, 4, 0, 3, 5, 4, 5, 8, 5, 6, + 4, 7, 5, 8, 3, 0, 0, 7, 8, 1, 2, 5, 9, 0, 9, 4, 9, 4, 7, 0, 1, 7, 7, + 2, 9, 2, 8, 2, 3, 7, 9, 1, 5, 0, 3, 9, 0, 6, 2, 5, 4, 5, 4, 7, 4, 7, + 3, 5, 0, 8, 8, 6, 4, 6, 4, 1, 1, 8, 9, 5, 7, 5, 1, 9, 5, 3, 1, 2, 5, + 2, 2, 7, 3, 7, 3, 6, 7, 5, 4, 4, 3, 2, 3, 2, 0, 5, 9, 4, 7, 8, 7, 5, + 9, 7, 6, 5, 6, 2, 5, 1, 1, 3, 6, 8, 6, 8, 3, 7, 7, 2, 1, 6, 1, 6, 0, + 2, 9, 7, 3, 9, 3, 7, 9, 8, 8, 2, 8, 1, 2, 5, 5, 6, 8, 4, 3, 4, 1, 8, + 8, 6, 0, 8, 0, 8, 0, 1, 4, 8, 6, 9, 6, 8, 9, 9, 4, 1, 4, 0, 6, 2, 5, + 2, 8, 4, 2, 1, 7, 0, 9, 4, 3, 0, 4, 0, 4, 0, 0, 7, 4, 3, 4, 8, 4, 4, + 9, 7, 0, 7, 0, 3, 1, 2, 5, 1, 4, 2, 1, 0, 8, 5, 4, 7, 1, 5, 2, 0, 2, + 0, 0, 3, 7, 1, 7, 4, 2, 2, 4, 8, 5, 3, 5, 1, 5, 6, 2, 5, 7, 1, 0, 5, + 4, 2, 7, 3, 5, 7, 6, 0, 1, 0, 0, 1, 8, 5, 8, 7, 1, 1, 2, 4, 2, 6, 7, + 5, 7, 8, 1, 2, 5, 3, 5, 5, 2, 7, 1, 3, 6, 7, 8, 8, 0, 0, 5, 0, 0, 9, + 2, 9, 3, 5, 5, 6, 2, 1, 3, 3, 7, 8, 9, 0, 6, 2, 5, 1, 7, 7, 6, 3, 5, + 6, 8, 3, 9, 4, 0, 0, 2, 5, 0, 4, 6, 4, 6, 7, 7, 8, 1, 0, 6, 6, 8, 9, + 4, 5, 3, 1, 2, 5, 8, 8, 8, 1, 7, 8, 4, 1, 9, 7, 0, 0, 1, 2, 5, 2, 3, + 2, 3, 3, 8, 9, 0, 5, 3, 3, 4, 4, 7, 2, 6, 5, 6, 2, 5, 4, 4, 4, 0, 8, + 9, 2, 0, 9, 8, 5, 0, 0, 6, 2, 6, 1, 6, 1, 6, 9, 4, 5, 2, 6, 6, 7, 2, + 3, 6, 3, 2, 8, 1, 2, 5, 2, 2, 2, 0, 4, 4, 6, 0, 4, 9, 2, 5, 0, 3, 1, + 3, 0, 8, 0, 8, 4, 7, 2, 6, 3, 3, 3, 6, 1, 8, 1, 6, 4, 0, 6, 2, 5, 1, + 1, 1, 0, 2, 2, 3, 0, 2, 4, 6, 2, 5, 1, 5, 6, 5, 4, 0, 4, 2, 3, 6, 3, + 1, 6, 6, 8, 0, 9, 0, 8, 2, 0, 3, 1, 2, 5, 5, 5, 5, 1, 1, 1, 5, 1, 2, + 3, 1, 2, 5, 7, 8, 2, 7, 0, 2, 1, 1, 8, 1, 5, 8, 3, 4, 0, 4, 5, 4, 1, + 0, 1, 5, 6, 2, 5, 2, 7, 7, 5, 5, 5, 7, 5, 6, 1, 5, 6, 2, 8, 9, 1, 3, + 5, 1, 0, 5, 9, 0, 7, 9, 1, 7, 0, 2, 2, 7, 0, 5, 0, 7, 8, 1, 2, 5, 1, + 3, 8, 7, 7, 7, 8, 7, 8, 0, 7, 8, 1, 4, 4, 5, 6, 7, 5, 5, 2, 9, 5, 3, + 9, 5, 8, 5, 1, 1, 3, 5, 2, 5, 3, 9, 0, 6, 2, 5, 6, 9, 3, 8, 8, 9, 3, + 9, 0, 3, 9, 0, 7, 2, 2, 8, 3, 7, 7, 6, 4, 7, 6, 9, 7, 9, 2, 5, 5, 6, + 7, 6, 2, 6, 9, 5, 3, 1, 2, 5, 3, 4, 6, 9, 4, 4, 6, 9, 5, 1, 9, 5, 3, + 6, 1, 4, 1, 8, 8, 8, 2, 3, 8, 4, 8, 9, 6, 2, 7, 8, 3, 8, 1, 3, 4, 7, + 6, 5, 6, 2, 5, 1, 7, 3, 4, 7, 2, 3, 4, 7, 5, 9, 7, 6, 8, 0, 7, 0, 9, + 4, 4, 1, 1, 9, 2, 4, 4, 8, 1, 3, 9, 1, 9, 0, 6, 7, 3, 8, 2, 8, 1, 2, + 5, 8, 6, 7, 3, 6, 1, 7, 3, 7, 9, 8, 8, 4, 0, 3, 5, 4, 7, 2, 0, 5, 9, + 6, 2, 2, 4, 0, 6, 9, 5, 9, 5, 3, 3, 6, 9, 1, 4, 0, 6, 2, 5, + }; + const uint8_t *pow5 = + &number_of_digits_decimal_left_shift_table_powers_of_5[pow5_a]; + uint32_t i = 0; + uint32_t n = pow5_b - pow5_a; + for (; i < n; i++) { + if (i >= h.num_digits) { + return num_new_digits - 1; + } else if (h.digits[i] == pow5[i]) { + continue; + } else if (h.digits[i] < pow5[i]) { + return num_new_digits - 1; + } else { + return num_new_digits; + } + } + return num_new_digits; +} + +} // end of anonymous namespace + +uint64_t round(decimal &h) { + if ((h.num_digits == 0) || (h.decimal_point < 0)) { + return 0; + } else if (h.decimal_point > 18) { + return UINT64_MAX; + } + // at this point, we know that h.decimal_point >= 0 + uint32_t dp = uint32_t(h.decimal_point); + uint64_t n = 0; + for (uint32_t i = 0; i < dp; i++) { + n = (10 * n) + ((i < h.num_digits) ? h.digits[i] : 0); + } + bool round_up = false; + if (dp < h.num_digits) { + round_up = h.digits[dp] >= 5; // normally, we round up + // but we may need to round to even! + if ((h.digits[dp] == 5) && (dp + 1 == h.num_digits)) { + round_up = h.truncated || ((dp > 0) && (1 & h.digits[dp - 1])); + } + } + if (round_up) { + n++; + } + return n; +} + +// computes h * 2^-shift +void decimal_left_shift(decimal &h, uint32_t shift) { + if (h.num_digits == 0) { + return; + } + uint32_t num_new_digits = number_of_digits_decimal_left_shift(h, shift); + int32_t read_index = int32_t(h.num_digits - 1); + uint32_t write_index = h.num_digits - 1 + num_new_digits; + uint64_t n = 0; + + while (read_index >= 0) { + n += uint64_t(h.digits[read_index]) << shift; + uint64_t quotient = n / 10; + uint64_t remainder = n - (10 * quotient); + if (write_index < max_digits) { + h.digits[write_index] = uint8_t(remainder); + } else if (remainder > 0) { + h.truncated = true; + } + n = quotient; + write_index--; + read_index--; + } + while (n > 0) { + uint64_t quotient = n / 10; + uint64_t remainder = n - (10 * quotient); + if (write_index < max_digits) { + h.digits[write_index] = uint8_t(remainder); + } else if (remainder > 0) { + h.truncated = true; + } + n = quotient; + write_index--; + } + h.num_digits += num_new_digits; + if (h.num_digits > max_digits) { + h.num_digits = max_digits; + } + h.decimal_point += int32_t(num_new_digits); + trim(h); +} + +// computes h * 2^shift +void decimal_right_shift(decimal &h, uint32_t shift) { + uint32_t read_index = 0; + uint32_t write_index = 0; + + uint64_t n = 0; + + while ((n >> shift) == 0) { + if (read_index < h.num_digits) { + n = (10 * n) + h.digits[read_index++]; + } else if (n == 0) { + return; + } else { + while ((n >> shift) == 0) { + n = 10 * n; + read_index++; + } + break; + } + } + h.decimal_point -= int32_t(read_index - 1); + if (h.decimal_point < -decimal_point_range) { // it is zero + h.num_digits = 0; + h.decimal_point = 0; + h.negative = false; + h.truncated = false; + return; + } + uint64_t mask = (uint64_t(1) << shift) - 1; + while (read_index < h.num_digits) { + uint8_t new_digit = uint8_t(n >> shift); + n = (10 * (n & mask)) + h.digits[read_index++]; + h.digits[write_index++] = new_digit; + } + while (n > 0) { + uint8_t new_digit = uint8_t(n >> shift); + n = 10 * (n & mask); + if (write_index < max_digits) { + h.digits[write_index++] = new_digit; + } else if (new_digit > 0) { + h.truncated = true; + } + } + h.num_digits = write_index; + trim(h); +} + +template adjusted_mantissa compute_float(decimal &d) { + adjusted_mantissa answer; + if (d.num_digits == 0) { + // should be zero + answer.power2 = 0; + answer.mantissa = 0; + return answer; + } + // At this point, going further, we can assume that d.num_digits > 0. + // We want to guard against excessive decimal point values because + // they can result in long running times. Indeed, we do + // shifts by at most 60 bits. We have that log(10**400)/log(2**60) ~= 22 + // which is fine, but log(10**299995)/log(2**60) ~= 16609 which is not + // fine (runs for a long time). + // + if(d.decimal_point < -324) { + // We have something smaller than 1e-324 which is always zero + // in binary64 and binary32. + // It should be zero. + answer.power2 = 0; + answer.mantissa = 0; + return answer; + } else if(d.decimal_point >= 310) { + // We have something at least as large as 0.1e310 which is + // always infinite. + answer.power2 = binary::infinite_power(); + answer.mantissa = 0; + return answer; + } + + static const uint32_t max_shift = 60; + static const uint32_t num_powers = 19; + static const uint8_t powers[19] = { + 0, 3, 6, 9, 13, 16, 19, 23, 26, 29, // + 33, 36, 39, 43, 46, 49, 53, 56, 59, // + }; + int32_t exp2 = 0; + while (d.decimal_point > 0) { + uint32_t n = uint32_t(d.decimal_point); + uint32_t shift = (n < num_powers) ? powers[n] : max_shift; + decimal_right_shift(d, shift); + if (d.decimal_point < -decimal_point_range) { + // should be zero + answer.power2 = 0; + answer.mantissa = 0; + return answer; + } + exp2 += int32_t(shift); + } + // We shift left toward [1/2 ... 1]. + while (d.decimal_point <= 0) { + uint32_t shift; + if (d.decimal_point == 0) { + if (d.digits[0] >= 5) { + break; + } + shift = (d.digits[0] < 2) ? 2 : 1; + } else { + uint32_t n = uint32_t(-d.decimal_point); + shift = (n < num_powers) ? powers[n] : max_shift; + } + decimal_left_shift(d, shift); + if (d.decimal_point > decimal_point_range) { + // we want to get infinity: + answer.power2 = 0xFF; + answer.mantissa = 0; + return answer; + } + exp2 -= int32_t(shift); + } + // We are now in the range [1/2 ... 1] but the binary format uses [1 ... 2]. + exp2--; + constexpr int32_t minimum_exponent = binary::minimum_exponent(); + while ((minimum_exponent + 1) > exp2) { + uint32_t n = uint32_t((minimum_exponent + 1) - exp2); + if (n > max_shift) { + n = max_shift; + } + decimal_right_shift(d, n); + exp2 += int32_t(n); + } + if ((exp2 - minimum_exponent) >= binary::infinite_power()) { + answer.power2 = binary::infinite_power(); + answer.mantissa = 0; + return answer; + } + + const int mantissa_size_in_bits = binary::mantissa_explicit_bits() + 1; + decimal_left_shift(d, mantissa_size_in_bits); + + uint64_t mantissa = round(d); + // It is possible that we have an overflow, in which case we need + // to shift back. + if (mantissa >= (uint64_t(1) << mantissa_size_in_bits)) { + decimal_right_shift(d, 1); + exp2 += 1; + mantissa = round(d); + if ((exp2 - minimum_exponent) >= binary::infinite_power()) { + answer.power2 = binary::infinite_power(); + answer.mantissa = 0; + return answer; + } + } + answer.power2 = exp2 - binary::minimum_exponent(); + if (mantissa < (uint64_t(1) << binary::mantissa_explicit_bits())) { + answer.power2--; + } + answer.mantissa = + mantissa & ((uint64_t(1) << binary::mantissa_explicit_bits()) - 1); + return answer; +} + +template +adjusted_mantissa parse_long_mantissa(const char *first) { + decimal d = parse_decimal(first); + return compute_float(d); +} + +template +adjusted_mantissa parse_long_mantissa(const char *first, const char *end) { + decimal d = parse_decimal(first, end); + return compute_float(d); +} + +double from_chars(const char *first) noexcept { + bool negative = first[0] == '-'; + if (negative) { + first++; + } + adjusted_mantissa am = parse_long_mantissa>(first); + uint64_t word = am.mantissa; + word |= uint64_t(am.power2) + << binary_format::mantissa_explicit_bits(); + word = negative ? word | (uint64_t(1) << binary_format::sign_index()) + : word; + double value; + std::memcpy(&value, &word, sizeof(double)); + return value; +} + + +double from_chars(const char *first, const char *end) noexcept { + bool negative = first[0] == '-'; + if (negative) { + first++; + } + adjusted_mantissa am = parse_long_mantissa>(first, end); + uint64_t word = am.mantissa; + word |= uint64_t(am.power2) + << binary_format::mantissa_explicit_bits(); + word = negative ? word | (uint64_t(1) << binary_format::sign_index()) + : word; + double value; + std::memcpy(&value, &word, sizeof(double)); + return value; +} + +} // internal +} // simdjson + +#endif // SIMDJSON_SRC_FROM_CHARS_CPP +/* end file from_chars.cpp */ +/* including internal/error_tables.cpp: #include */ +/* begin file internal/error_tables.cpp */ +#ifndef SIMDJSON_SRC_ERROR_TABLES_CPP +#define SIMDJSON_SRC_ERROR_TABLES_CPP + +/* including simdjson/internal/jsoncharutils_tables.h: #include */ +/* begin file simdjson/internal/jsoncharutils_tables.h */ +#ifndef SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H +#define SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H + +/* skipped duplicate #include "simdjson/base.h" */ + +#ifdef JSON_TEST_STRINGS +void found_string(const uint8_t *buf, const uint8_t *parsed_begin, + const uint8_t *parsed_end); +void found_bad_string(const uint8_t *buf); +#endif + +namespace simdjson { +namespace internal { +// structural chars here are +// they are { 0x7b } 0x7d : 0x3a [ 0x5b ] 0x5d , 0x2c (and NULL) +// we are also interested in the four whitespace characters +// space 0x20, linefeed 0x0a, horizontal tab 0x09 and carriage return 0x0d + +extern SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace_negated[256]; +extern SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace[256]; +extern SIMDJSON_DLLIMPORTEXPORT const uint32_t digit_to_val32[886]; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H +/* end file simdjson/internal/jsoncharutils_tables.h */ +/* including simdjson/error-inl.h: #include */ +/* begin file simdjson/error-inl.h */ +#ifndef SIMDJSON_ERROR_INL_H +#define SIMDJSON_ERROR_INL_H + +/* skipped duplicate #include "simdjson/error.h" */ + +#include + +namespace simdjson { +namespace internal { + // We store the error code so we can validate the error message is associated with the right code + struct error_code_info { + error_code code; + const char* message; // do not use a fancy std::string where a simple C string will do (no alloc, no destructor) + }; + // These MUST match the codes in error_code. We check this constraint in basictests. + extern SIMDJSON_DLLIMPORTEXPORT const error_code_info error_codes[]; +} // namespace internal + + +inline const char *error_message(error_code error) noexcept { + // If you're using error_code, we're trusting you got it from the enum. + return internal::error_codes[int(error)].message; +} + +// deprecated function +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +inline const std::string error_message(int error) noexcept { + if (error < 0 || error >= error_code::NUM_ERROR_CODES) { + return internal::error_codes[UNEXPECTED_ERROR].message; + } + return internal::error_codes[error].message; +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API + +inline std::ostream& operator<<(std::ostream& out, error_code error) noexcept { + return out << error_message(error); +} + +namespace internal { + +// +// internal::simdjson_result_base inline implementation +// + +template +simdjson_inline void simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T&& simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline simdjson_result_base::simdjson_result_base(T &&value, error_code error) noexcept + : std::pair(std::forward(value), error) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base(error_code error) noexcept + : simdjson_result_base(T{}, error) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base(T &&value) noexcept + : simdjson_result_base(std::forward(value), SUCCESS) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base() noexcept + : simdjson_result_base(T{}, UNINITIALIZED) {} + +} // namespace internal + +/// +/// simdjson_result inline implementation +/// + +template +simdjson_inline void simdjson_result::tie(T &value, error_code &error) && noexcept { + std::forward>(*this).tie(value, error); +} + +template +simdjson_warn_unused simdjson_inline error_code simdjson_result::get(T &value) && noexcept { + return std::forward>(*this).get(value); +} + +template +simdjson_inline error_code simdjson_result::error() const noexcept { + return internal::simdjson_result_base::error(); +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& simdjson_result::value() & noexcept(false) { + return internal::simdjson_result_base::value(); +} + +template +simdjson_inline T&& simdjson_result::value() && noexcept(false) { + return std::forward>(*this).value(); +} + +template +simdjson_inline T&& simdjson_result::take_value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline simdjson_result::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& simdjson_result::value_unsafe() const& noexcept { + return internal::simdjson_result_base::value_unsafe(); +} + +template +simdjson_inline T&& simdjson_result::value_unsafe() && noexcept { + return std::forward>(*this).value_unsafe(); +} + +template +simdjson_inline simdjson_result::simdjson_result(T &&value, error_code error) noexcept + : internal::simdjson_result_base(std::forward(value), error) {} +template +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : internal::simdjson_result_base(error) {} +template +simdjson_inline simdjson_result::simdjson_result(T &&value) noexcept + : internal::simdjson_result_base(std::forward(value)) {} +template +simdjson_inline simdjson_result::simdjson_result() noexcept + : internal::simdjson_result_base() {} + +} // namespace simdjson + +#endif // SIMDJSON_ERROR_INL_H +/* end file simdjson/error-inl.h */ + +namespace simdjson { +namespace internal { + + SIMDJSON_DLLIMPORTEXPORT const error_code_info error_codes[] { + { SUCCESS, "SUCCESS: No error" }, + { CAPACITY, "CAPACITY: This parser can't support a document that big" }, + { MEMALLOC, "MEMALLOC: Error allocating memory, we're most likely out of memory" }, + { TAPE_ERROR, "TAPE_ERROR: The JSON document has an improper structure: missing or superfluous commas, braces, missing keys, etc." }, + { DEPTH_ERROR, "DEPTH_ERROR: The JSON document was too deep (too many nested objects and arrays)" }, + { STRING_ERROR, "STRING_ERROR: Problem while parsing a string" }, + { T_ATOM_ERROR, "T_ATOM_ERROR: Problem while parsing an atom starting with the letter 't'" }, + { F_ATOM_ERROR, "F_ATOM_ERROR: Problem while parsing an atom starting with the letter 'f'" }, + { N_ATOM_ERROR, "N_ATOM_ERROR: Problem while parsing an atom starting with the letter 'n'" }, + { NUMBER_ERROR, "NUMBER_ERROR: Problem while parsing a number" }, + { UTF8_ERROR, "UTF8_ERROR: The input is not valid UTF-8" }, + { UNINITIALIZED, "UNINITIALIZED: Uninitialized" }, + { EMPTY, "EMPTY: no JSON found" }, + { UNESCAPED_CHARS, "UNESCAPED_CHARS: Within strings, some characters must be escaped, we found unescaped characters" }, + { UNCLOSED_STRING, "UNCLOSED_STRING: A string is opened, but never closed." }, + { UNSUPPORTED_ARCHITECTURE, "UNSUPPORTED_ARCHITECTURE: simdjson does not have an implementation supported by this CPU architecture. Please report this error to the core team as it should never happen." }, + { INCORRECT_TYPE, "INCORRECT_TYPE: The JSON element does not have the requested type." }, + { NUMBER_OUT_OF_RANGE, "NUMBER_OUT_OF_RANGE: The JSON number is too large or too small to fit within the requested type." }, + { INDEX_OUT_OF_BOUNDS, "INDEX_OUT_OF_BOUNDS: Attempted to access an element of a JSON array that is beyond its length." }, + { NO_SUCH_FIELD, "NO_SUCH_FIELD: The JSON field referenced does not exist in this object." }, + { IO_ERROR, "IO_ERROR: Error reading the file." }, + { INVALID_JSON_POINTER, "INVALID_JSON_POINTER: Invalid JSON pointer syntax." }, + { INVALID_URI_FRAGMENT, "INVALID_URI_FRAGMENT: Invalid URI fragment syntax." }, + { UNEXPECTED_ERROR, "UNEXPECTED_ERROR: Unexpected error, consider reporting this problem as you may have found a bug in simdjson" }, + { PARSER_IN_USE, "PARSER_IN_USE: Cannot parse a new document while a document is still in use." }, + { OUT_OF_ORDER_ITERATION, "OUT_OF_ORDER_ITERATION: Objects and arrays can only be iterated when they are first encountered." }, + { INSUFFICIENT_PADDING, "INSUFFICIENT_PADDING: simdjson requires the input JSON string to have at least SIMDJSON_PADDING extra bytes allocated, beyond the string's length. Consider using the simdjson::padded_string class if needed." }, + { INCOMPLETE_ARRAY_OR_OBJECT, "INCOMPLETE_ARRAY_OR_OBJECT: JSON document ended early in the middle of an object or array." }, + { SCALAR_DOCUMENT_AS_VALUE, "SCALAR_DOCUMENT_AS_VALUE: A JSON document made of a scalar (number, Boolean, null or string) is treated as a value. Use get_bool(), get_double(), etc. on the document instead. "}, + { OUT_OF_BOUNDS, "OUT_OF_BOUNDS: Attempt to access location outside of document."}, + { TRAILING_CONTENT, "TRAILING_CONTENT: Unexpected trailing content in the JSON input."} + }; // error_messages[] + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_SRC_ERROR_TABLES_CPP +/* end file internal/error_tables.cpp */ +/* including internal/jsoncharutils_tables.cpp: #include */ +/* begin file internal/jsoncharutils_tables.cpp */ +#ifndef SIMDJSON_SRC_JSONCHARUTILS_TABLES_CPP +#define SIMDJSON_SRC_JSONCHARUTILS_TABLES_CPP + +/* skipped duplicate #include */ + +namespace simdjson { +namespace internal { + +// structural chars here are +// they are { 0x7b } 0x7d : 0x3a [ 0x5b ] 0x5d , 0x2c (and NULL) +// we are also interested in the four whitespace characters +// space 0x20, linefeed 0x0a, horizontal tab 0x09 and carriage return 0x0d + +SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace_negated[256] = { + 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; + +SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + +SIMDJSON_DLLIMPORTEXPORT const uint32_t digit_to_val32[886] = { + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, + 0x6, 0x7, 0x8, 0x9, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa, + 0xb, 0xc, 0xd, 0xe, 0xf, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xa, 0xb, 0xc, 0xd, 0xe, + 0xf, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0x0, 0x10, 0x20, 0x30, 0x40, 0x50, + 0x60, 0x70, 0x80, 0x90, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa0, + 0xb0, 0xc0, 0xd0, 0xe0, 0xf0, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, + 0xf0, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0x0, 0x100, 0x200, 0x300, 0x400, 0x500, + 0x600, 0x700, 0x800, 0x900, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa00, + 0xb00, 0xc00, 0xd00, 0xe00, 0xf00, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xa00, 0xb00, 0xc00, 0xd00, 0xe00, + 0xf00, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0x0, 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, + 0x6000, 0x7000, 0x8000, 0x9000, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xa000, + 0xb000, 0xc000, 0xd000, 0xe000, 0xf000, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xa000, 0xb000, 0xc000, 0xd000, 0xe000, + 0xf000, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, + 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF}; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_SRC_JSONCHARUTILS_TABLES_CPP +/* end file internal/jsoncharutils_tables.cpp */ +/* including internal/numberparsing_tables.cpp: #include */ +/* begin file internal/numberparsing_tables.cpp */ +#ifndef SIMDJSON_SRC_NUMBERPARSING_TABLES_CPP +#define SIMDJSON_SRC_NUMBERPARSING_TABLES_CPP + +/* skipped duplicate #include */ +/* including simdjson/internal/numberparsing_tables.h: #include */ +/* begin file simdjson/internal/numberparsing_tables.h */ +#ifndef SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H +#define SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H + +/* skipped duplicate #include "simdjson/base.h" */ + +namespace simdjson { +namespace internal { +/** + * The smallest non-zero float (binary64) is 2^-1074. + * We take as input numbers of the form w x 10^q where w < 2^64. + * We have that w * 10^-343 < 2^(64-344) 5^-343 < 2^-1076. + * However, we have that + * (2^64-1) * 10^-342 = (2^64-1) * 2^-342 * 5^-342 > 2^-1074. + * Thus it is possible for a number of the form w * 10^-342 where + * w is a 64-bit value to be a non-zero floating-point number. + ********* + * Any number of form w * 10^309 where w>= 1 is going to be + * infinite in binary64 so we never need to worry about powers + * of 5 greater than 308. + */ +constexpr int smallest_power = -342; +constexpr int largest_power = 308; + +/** + * Represents a 128-bit value. + * low: least significant 64 bits. + * high: most significant 64 bits. + */ +struct value128 { + uint64_t low; + uint64_t high; +}; + + +// Precomputed powers of ten from 10^0 to 10^22. These +// can be represented exactly using the double type. +extern SIMDJSON_DLLIMPORTEXPORT const double power_of_ten[]; + + +/** + * When mapping numbers from decimal to binary, + * we go from w * 10^q to m * 2^p but we have + * 10^q = 5^q * 2^q, so effectively + * we are trying to match + * w * 2^q * 5^q to m * 2^p. Thus the powers of two + * are not a concern since they can be represented + * exactly using the binary notation, only the powers of five + * affect the binary significand. + */ + + +// The truncated powers of five from 5^-342 all the way to 5^308 +// The mantissa is truncated to 128 bits, and +// never rounded up. Uses about 10KB. +extern SIMDJSON_DLLIMPORTEXPORT const uint64_t power_of_five_128[]; +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H +/* end file simdjson/internal/numberparsing_tables.h */ + +// Precomputed powers of ten from 10^0 to 10^22. These +// can be represented exactly using the double type. +SIMDJSON_DLLIMPORTEXPORT const double simdjson::internal::power_of_ten[] = { + 1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, + 1e12, 1e13, 1e14, 1e15, 1e16, 1e17, 1e18, 1e19, 1e20, 1e21, 1e22}; + +/** + * When mapping numbers from decimal to binary, + * we go from w * 10^q to m * 2^p but we have + * 10^q = 5^q * 2^q, so effectively + * we are trying to match + * w * 2^q * 5^q to m * 2^p. Thus the powers of two + * are not a concern since they can be represented + * exactly using the binary notation, only the powers of five + * affect the binary significand. + */ + + +// The truncated powers of five from 5^-342 all the way to 5^308 +// The mantissa is truncated to 128 bits, and +// never rounded up. Uses about 10KB. +SIMDJSON_DLLIMPORTEXPORT const uint64_t simdjson::internal::power_of_five_128[]= { + 0xeef453d6923bd65a,0x113faa2906a13b3f, + 0x9558b4661b6565f8,0x4ac7ca59a424c507, + 0xbaaee17fa23ebf76,0x5d79bcf00d2df649, + 0xe95a99df8ace6f53,0xf4d82c2c107973dc, + 0x91d8a02bb6c10594,0x79071b9b8a4be869, + 0xb64ec836a47146f9,0x9748e2826cdee284, + 0xe3e27a444d8d98b7,0xfd1b1b2308169b25, + 0x8e6d8c6ab0787f72,0xfe30f0f5e50e20f7, + 0xb208ef855c969f4f,0xbdbd2d335e51a935, + 0xde8b2b66b3bc4723,0xad2c788035e61382, + 0x8b16fb203055ac76,0x4c3bcb5021afcc31, + 0xaddcb9e83c6b1793,0xdf4abe242a1bbf3d, + 0xd953e8624b85dd78,0xd71d6dad34a2af0d, + 0x87d4713d6f33aa6b,0x8672648c40e5ad68, + 0xa9c98d8ccb009506,0x680efdaf511f18c2, + 0xd43bf0effdc0ba48,0x212bd1b2566def2, + 0x84a57695fe98746d,0x14bb630f7604b57, + 0xa5ced43b7e3e9188,0x419ea3bd35385e2d, + 0xcf42894a5dce35ea,0x52064cac828675b9, + 0x818995ce7aa0e1b2,0x7343efebd1940993, + 0xa1ebfb4219491a1f,0x1014ebe6c5f90bf8, + 0xca66fa129f9b60a6,0xd41a26e077774ef6, + 0xfd00b897478238d0,0x8920b098955522b4, + 0x9e20735e8cb16382,0x55b46e5f5d5535b0, + 0xc5a890362fddbc62,0xeb2189f734aa831d, + 0xf712b443bbd52b7b,0xa5e9ec7501d523e4, + 0x9a6bb0aa55653b2d,0x47b233c92125366e, + 0xc1069cd4eabe89f8,0x999ec0bb696e840a, + 0xf148440a256e2c76,0xc00670ea43ca250d, + 0x96cd2a865764dbca,0x380406926a5e5728, + 0xbc807527ed3e12bc,0xc605083704f5ecf2, + 0xeba09271e88d976b,0xf7864a44c633682e, + 0x93445b8731587ea3,0x7ab3ee6afbe0211d, + 0xb8157268fdae9e4c,0x5960ea05bad82964, + 0xe61acf033d1a45df,0x6fb92487298e33bd, + 0x8fd0c16206306bab,0xa5d3b6d479f8e056, + 0xb3c4f1ba87bc8696,0x8f48a4899877186c, + 0xe0b62e2929aba83c,0x331acdabfe94de87, + 0x8c71dcd9ba0b4925,0x9ff0c08b7f1d0b14, + 0xaf8e5410288e1b6f,0x7ecf0ae5ee44dd9, + 0xdb71e91432b1a24a,0xc9e82cd9f69d6150, + 0x892731ac9faf056e,0xbe311c083a225cd2, + 0xab70fe17c79ac6ca,0x6dbd630a48aaf406, + 0xd64d3d9db981787d,0x92cbbccdad5b108, + 0x85f0468293f0eb4e,0x25bbf56008c58ea5, + 0xa76c582338ed2621,0xaf2af2b80af6f24e, + 0xd1476e2c07286faa,0x1af5af660db4aee1, + 0x82cca4db847945ca,0x50d98d9fc890ed4d, + 0xa37fce126597973c,0xe50ff107bab528a0, + 0xcc5fc196fefd7d0c,0x1e53ed49a96272c8, + 0xff77b1fcbebcdc4f,0x25e8e89c13bb0f7a, + 0x9faacf3df73609b1,0x77b191618c54e9ac, + 0xc795830d75038c1d,0xd59df5b9ef6a2417, + 0xf97ae3d0d2446f25,0x4b0573286b44ad1d, + 0x9becce62836ac577,0x4ee367f9430aec32, + 0xc2e801fb244576d5,0x229c41f793cda73f, + 0xf3a20279ed56d48a,0x6b43527578c1110f, + 0x9845418c345644d6,0x830a13896b78aaa9, + 0xbe5691ef416bd60c,0x23cc986bc656d553, + 0xedec366b11c6cb8f,0x2cbfbe86b7ec8aa8, + 0x94b3a202eb1c3f39,0x7bf7d71432f3d6a9, + 0xb9e08a83a5e34f07,0xdaf5ccd93fb0cc53, + 0xe858ad248f5c22c9,0xd1b3400f8f9cff68, + 0x91376c36d99995be,0x23100809b9c21fa1, + 0xb58547448ffffb2d,0xabd40a0c2832a78a, + 0xe2e69915b3fff9f9,0x16c90c8f323f516c, + 0x8dd01fad907ffc3b,0xae3da7d97f6792e3, + 0xb1442798f49ffb4a,0x99cd11cfdf41779c, + 0xdd95317f31c7fa1d,0x40405643d711d583, + 0x8a7d3eef7f1cfc52,0x482835ea666b2572, + 0xad1c8eab5ee43b66,0xda3243650005eecf, + 0xd863b256369d4a40,0x90bed43e40076a82, + 0x873e4f75e2224e68,0x5a7744a6e804a291, + 0xa90de3535aaae202,0x711515d0a205cb36, + 0xd3515c2831559a83,0xd5a5b44ca873e03, + 0x8412d9991ed58091,0xe858790afe9486c2, + 0xa5178fff668ae0b6,0x626e974dbe39a872, + 0xce5d73ff402d98e3,0xfb0a3d212dc8128f, + 0x80fa687f881c7f8e,0x7ce66634bc9d0b99, + 0xa139029f6a239f72,0x1c1fffc1ebc44e80, + 0xc987434744ac874e,0xa327ffb266b56220, + 0xfbe9141915d7a922,0x4bf1ff9f0062baa8, + 0x9d71ac8fada6c9b5,0x6f773fc3603db4a9, + 0xc4ce17b399107c22,0xcb550fb4384d21d3, + 0xf6019da07f549b2b,0x7e2a53a146606a48, + 0x99c102844f94e0fb,0x2eda7444cbfc426d, + 0xc0314325637a1939,0xfa911155fefb5308, + 0xf03d93eebc589f88,0x793555ab7eba27ca, + 0x96267c7535b763b5,0x4bc1558b2f3458de, + 0xbbb01b9283253ca2,0x9eb1aaedfb016f16, + 0xea9c227723ee8bcb,0x465e15a979c1cadc, + 0x92a1958a7675175f,0xbfacd89ec191ec9, + 0xb749faed14125d36,0xcef980ec671f667b, + 0xe51c79a85916f484,0x82b7e12780e7401a, + 0x8f31cc0937ae58d2,0xd1b2ecb8b0908810, + 0xb2fe3f0b8599ef07,0x861fa7e6dcb4aa15, + 0xdfbdcece67006ac9,0x67a791e093e1d49a, + 0x8bd6a141006042bd,0xe0c8bb2c5c6d24e0, + 0xaecc49914078536d,0x58fae9f773886e18, + 0xda7f5bf590966848,0xaf39a475506a899e, + 0x888f99797a5e012d,0x6d8406c952429603, + 0xaab37fd7d8f58178,0xc8e5087ba6d33b83, + 0xd5605fcdcf32e1d6,0xfb1e4a9a90880a64, + 0x855c3be0a17fcd26,0x5cf2eea09a55067f, + 0xa6b34ad8c9dfc06f,0xf42faa48c0ea481e, + 0xd0601d8efc57b08b,0xf13b94daf124da26, + 0x823c12795db6ce57,0x76c53d08d6b70858, + 0xa2cb1717b52481ed,0x54768c4b0c64ca6e, + 0xcb7ddcdda26da268,0xa9942f5dcf7dfd09, + 0xfe5d54150b090b02,0xd3f93b35435d7c4c, + 0x9efa548d26e5a6e1,0xc47bc5014a1a6daf, + 0xc6b8e9b0709f109a,0x359ab6419ca1091b, + 0xf867241c8cc6d4c0,0xc30163d203c94b62, + 0x9b407691d7fc44f8,0x79e0de63425dcf1d, + 0xc21094364dfb5636,0x985915fc12f542e4, + 0xf294b943e17a2bc4,0x3e6f5b7b17b2939d, + 0x979cf3ca6cec5b5a,0xa705992ceecf9c42, + 0xbd8430bd08277231,0x50c6ff782a838353, + 0xece53cec4a314ebd,0xa4f8bf5635246428, + 0x940f4613ae5ed136,0x871b7795e136be99, + 0xb913179899f68584,0x28e2557b59846e3f, + 0xe757dd7ec07426e5,0x331aeada2fe589cf, + 0x9096ea6f3848984f,0x3ff0d2c85def7621, + 0xb4bca50b065abe63,0xfed077a756b53a9, + 0xe1ebce4dc7f16dfb,0xd3e8495912c62894, + 0x8d3360f09cf6e4bd,0x64712dd7abbbd95c, + 0xb080392cc4349dec,0xbd8d794d96aacfb3, + 0xdca04777f541c567,0xecf0d7a0fc5583a0, + 0x89e42caaf9491b60,0xf41686c49db57244, + 0xac5d37d5b79b6239,0x311c2875c522ced5, + 0xd77485cb25823ac7,0x7d633293366b828b, + 0x86a8d39ef77164bc,0xae5dff9c02033197, + 0xa8530886b54dbdeb,0xd9f57f830283fdfc, + 0xd267caa862a12d66,0xd072df63c324fd7b, + 0x8380dea93da4bc60,0x4247cb9e59f71e6d, + 0xa46116538d0deb78,0x52d9be85f074e608, + 0xcd795be870516656,0x67902e276c921f8b, + 0x806bd9714632dff6,0xba1cd8a3db53b6, + 0xa086cfcd97bf97f3,0x80e8a40eccd228a4, + 0xc8a883c0fdaf7df0,0x6122cd128006b2cd, + 0xfad2a4b13d1b5d6c,0x796b805720085f81, + 0x9cc3a6eec6311a63,0xcbe3303674053bb0, + 0xc3f490aa77bd60fc,0xbedbfc4411068a9c, 0xf4f1b4d515acb93b,0xee92fb5515482d44, 0x991711052d8bf3c5,0x751bdd152d4d1c4a, 0xbf5cd54678eef0b6,0xd262d45a78a0635d, @@ -2466,351 +5427,18294 @@ SIMDJSON_DLLIMPORTEXPORT const uint64_t power_of_five_128[]= { 0xe3d8f9e563a198e5,0x58180fddd97723a6, 0x8e679c2f5e44ff8f,0x570f09eaa7ea7648,}; -} // namespace internal -} // namespace simdjson -/* end file src/internal/numberparsing_tables.cpp */ -/* begin file src/internal/simdprune_tables.cpp */ -#if SIMDJSON_IMPLEMENTATION_ARM64 || SIMDJSON_IMPLEMENTATION_ICELAKE || SIMDJSON_IMPLEMENTATION_HASWELL || SIMDJSON_IMPLEMENTATION_WESTMERE || SIMDJSON_IMPLEMENTATION_PPC64 +#endif // SIMDJSON_SRC_NUMBERPARSING_TABLES_CPP +/* end file internal/numberparsing_tables.cpp */ +/* including internal/simdprune_tables.cpp: #include */ +/* begin file internal/simdprune_tables.cpp */ +#ifndef SIMDJSON_SRC_SIMDPRUNE_TABLES_CPP +#define SIMDJSON_SRC_SIMDPRUNE_TABLES_CPP + +/* including simdjson/implementation_detection.h: #include */ +/* begin file simdjson/implementation_detection.h */ +#ifndef SIMDJSON_IMPLEMENTATION_DETECTION_H +#define SIMDJSON_IMPLEMENTATION_DETECTION_H + +/* skipped duplicate #include "simdjson/base.h" */ + +// 0 is reserved, because undefined SIMDJSON_IMPLEMENTATION equals 0 in preprocessor macros. +#define SIMDJSON_IMPLEMENTATION_ID_arm64 1 +#define SIMDJSON_IMPLEMENTATION_ID_fallback 2 +#define SIMDJSON_IMPLEMENTATION_ID_haswell 3 +#define SIMDJSON_IMPLEMENTATION_ID_icelake 4 +#define SIMDJSON_IMPLEMENTATION_ID_ppc64 5 +#define SIMDJSON_IMPLEMENTATION_ID_westmere 6 + +#define SIMDJSON_IMPLEMENTATION_ID_FOR(IMPL) SIMDJSON_CAT(SIMDJSON_IMPLEMENTATION_ID_, IMPL) +#define SIMDJSON_IMPLEMENTATION_ID SIMDJSON_IMPLEMENTATION_ID_FOR(SIMDJSON_IMPLEMENTATION) + +#define SIMDJSON_IMPLEMENTATION_IS(IMPL) SIMDJSON_IMPLEMENTATION_ID == SIMDJSON_IMPLEMENTATION_ID_FOR(IMPL) + +// +// First, figure out which implementations can be run. Doing it here makes it so we don't have to worry about the order +// in which we include them. +// + +#ifndef SIMDJSON_IMPLEMENTATION_ARM64 +#define SIMDJSON_IMPLEMENTATION_ARM64 (SIMDJSON_IS_ARM64) +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_ARM64 SIMDJSON_IMPLEMENTATION_ARM64 && SIMDJSON_IS_ARM64 + +// Default Icelake to on if this is x86-64. Even if we're not compiled for it, it could be selected +// at runtime. +#ifndef SIMDJSON_IMPLEMENTATION_ICELAKE +#define SIMDJSON_IMPLEMENTATION_ICELAKE ((SIMDJSON_IS_X86_64) && (SIMDJSON_AVX512_ALLOWED) && (SIMDJSON_COMPILER_SUPPORTS_VBMI2)) +#endif + +#ifdef _MSC_VER +// To see why (__BMI__) && (__PCLMUL__) && (__LZCNT__) are not part of this next line, see +// https://github.com/simdjson/simdjson/issues/1247 +#define SIMDJSON_CAN_ALWAYS_RUN_ICELAKE ((SIMDJSON_IMPLEMENTATION_ICELAKE) && (__AVX2__) && (__AVX512F__) && (__AVX512DQ__) && (__AVX512CD__) && (__AVX512BW__) && (__AVX512VL__) && (__AVX512VBMI2__)) +#else +#define SIMDJSON_CAN_ALWAYS_RUN_ICELAKE ((SIMDJSON_IMPLEMENTATION_ICELAKE) && (__AVX2__) && (__BMI__) && (__PCLMUL__) && (__LZCNT__) && (__AVX512F__) && (__AVX512DQ__) && (__AVX512CD__) && (__AVX512BW__) && (__AVX512VL__) && (__AVX512VBMI2__)) +#endif + +// Default Haswell to on if this is x86-64. Even if we're not compiled for it, it could be selected +// at runtime. +#ifndef SIMDJSON_IMPLEMENTATION_HASWELL +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +// if icelake is always available, never enable haswell. +#define SIMDJSON_IMPLEMENTATION_HASWELL 0 +#else +#define SIMDJSON_IMPLEMENTATION_HASWELL SIMDJSON_IS_X86_64 +#endif +#endif +#ifdef _MSC_VER +// To see why (__BMI__) && (__PCLMUL__) && (__LZCNT__) are not part of this next line, see +// https://github.com/simdjson/simdjson/issues/1247 +#define SIMDJSON_CAN_ALWAYS_RUN_HASWELL ((SIMDJSON_IMPLEMENTATION_HASWELL) && (SIMDJSON_IS_X86_64) && (__AVX2__)) +#else +#define SIMDJSON_CAN_ALWAYS_RUN_HASWELL ((SIMDJSON_IMPLEMENTATION_HASWELL) && (SIMDJSON_IS_X86_64) && (__AVX2__) && (__BMI__) && (__PCLMUL__) && (__LZCNT__)) +#endif + +// Default Westmere to on if this is x86-64. +#ifndef SIMDJSON_IMPLEMENTATION_WESTMERE +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE || SIMDJSON_CAN_ALWAYS_RUN_HASWELL +// if icelake or haswell are always available, never enable westmere. +#define SIMDJSON_IMPLEMENTATION_WESTMERE 0 +#else +#define SIMDJSON_IMPLEMENTATION_WESTMERE SIMDJSON_IS_X86_64 +#endif +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_WESTMERE (SIMDJSON_IMPLEMENTATION_WESTMERE && SIMDJSON_IS_X86_64 && __SSE4_2__ && __PCLMUL__) + +#ifndef SIMDJSON_IMPLEMENTATION_PPC64 +#define SIMDJSON_IMPLEMENTATION_PPC64 (SIMDJSON_IS_PPC64 && SIMDJSON_IS_PPC64_VMX) +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_PPC64 SIMDJSON_IMPLEMENTATION_PPC64 && SIMDJSON_IS_PPC64 && SIMDJSON_IS_PPC64_VMX + +// Default Fallback to on unless a builtin implementation has already been selected. +#ifndef SIMDJSON_IMPLEMENTATION_FALLBACK +#if SIMDJSON_CAN_ALWAYS_RUN_ARM64 || SIMDJSON_CAN_ALWAYS_RUN_ICELAKE || SIMDJSON_CAN_ALWAYS_RUN_HASWELL || SIMDJSON_CAN_ALWAYS_RUN_WESTMERE || SIMDJSON_CAN_ALWAYS_RUN_PPC64 +// if anything at all except fallback can always run, then disable fallback. +#define SIMDJSON_IMPLEMENTATION_FALLBACK 0 +#else +#define SIMDJSON_IMPLEMENTATION_FALLBACK 1 +#endif +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_FALLBACK SIMDJSON_IMPLEMENTATION_FALLBACK + +// Determine the best builtin implementation +#ifndef SIMDJSON_BUILTIN_IMPLEMENTATION + +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +#define SIMDJSON_BUILTIN_IMPLEMENTATION icelake +#elif SIMDJSON_CAN_ALWAYS_RUN_HASWELL +#define SIMDJSON_BUILTIN_IMPLEMENTATION haswell +#elif SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +#define SIMDJSON_BUILTIN_IMPLEMENTATION westmere +#elif SIMDJSON_CAN_ALWAYS_RUN_ARM64 +#define SIMDJSON_BUILTIN_IMPLEMENTATION arm64 +#elif SIMDJSON_CAN_ALWAYS_RUN_PPC64 +#define SIMDJSON_BUILTIN_IMPLEMENTATION ppc64 +#elif SIMDJSON_CAN_ALWAYS_RUN_FALLBACK +#define SIMDJSON_BUILTIN_IMPLEMENTATION fallback +#else +#error "All possible implementations (including fallback) have been disabled! simdjson will not run." +#endif + +#endif // SIMDJSON_BUILTIN_IMPLEMENTATION + +#define SIMDJSON_BUILTIN_IMPLEMENTATION_ID SIMDJSON_IMPLEMENTATION_ID_FOR(SIMDJSON_BUILTIN_IMPLEMENTATION) +#define SIMDJSON_BUILTIN_IMPLEMENTATION_IS(IMPL) SIMDJSON_BUILTIN_IMPLEMENTATION_ID == SIMDJSON_IMPLEMENTATION_ID_FOR(IMPL) + +#endif // SIMDJSON_IMPLEMENTATION_DETECTION_H +/* end file simdjson/implementation_detection.h */ + +#if SIMDJSON_IMPLEMENTATION_ARM64 || SIMDJSON_IMPLEMENTATION_ICELAKE || SIMDJSON_IMPLEMENTATION_HASWELL || SIMDJSON_IMPLEMENTATION_WESTMERE || SIMDJSON_IMPLEMENTATION_PPC64 + +#include + +namespace simdjson { // table modified and copied from +namespace internal { // http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetTable +SIMDJSON_DLLIMPORTEXPORT const unsigned char BitsSetTable256mul2[256] = { + 0, 2, 2, 4, 2, 4, 4, 6, 2, 4, 4, 6, 4, 6, 6, 8, 2, 4, 4, + 6, 4, 6, 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 2, 4, 4, 6, 4, 6, + 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, 6, + 8, 8, 10, 8, 10, 10, 12, 2, 4, 4, 6, 4, 6, 6, 8, 4, 6, 6, 8, + 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, + 12, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, 12, 6, 8, + 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 2, 4, 4, 6, 4, + 6, 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, + 6, 8, 8, 10, 8, 10, 10, 12, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, + 10, 8, 10, 10, 12, 6, 8, 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, + 12, 14, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, 12, 6, + 8, 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 6, 8, 8, 10, + 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 8, 10, 10, 12, 10, 12, 12, + 14, 10, 12, 12, 14, 12, 14, 14, 16}; + +SIMDJSON_DLLIMPORTEXPORT const uint8_t pshufb_combine_table[272] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x08, + 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0x00, 0x01, 0x02, 0x03, + 0x04, 0x05, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, + 0x0f, 0xff, 0xff, 0xff, 0x00, 0x01, 0x02, 0x03, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0x00, 0x01, 0x02, 0x08, + 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x00, 0x01, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0x00, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, + 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x08, 0x09, 0x0a, 0x0b, + 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, +}; + +// 256 * 8 bytes = 2kB, easily fits in cache. +SIMDJSON_DLLIMPORTEXPORT const uint64_t thintable_epi8[256] = { + 0x0706050403020100, 0x0007060504030201, 0x0007060504030200, + 0x0000070605040302, 0x0007060504030100, 0x0000070605040301, + 0x0000070605040300, 0x0000000706050403, 0x0007060504020100, + 0x0000070605040201, 0x0000070605040200, 0x0000000706050402, + 0x0000070605040100, 0x0000000706050401, 0x0000000706050400, + 0x0000000007060504, 0x0007060503020100, 0x0000070605030201, + 0x0000070605030200, 0x0000000706050302, 0x0000070605030100, + 0x0000000706050301, 0x0000000706050300, 0x0000000007060503, + 0x0000070605020100, 0x0000000706050201, 0x0000000706050200, + 0x0000000007060502, 0x0000000706050100, 0x0000000007060501, + 0x0000000007060500, 0x0000000000070605, 0x0007060403020100, + 0x0000070604030201, 0x0000070604030200, 0x0000000706040302, + 0x0000070604030100, 0x0000000706040301, 0x0000000706040300, + 0x0000000007060403, 0x0000070604020100, 0x0000000706040201, + 0x0000000706040200, 0x0000000007060402, 0x0000000706040100, + 0x0000000007060401, 0x0000000007060400, 0x0000000000070604, + 0x0000070603020100, 0x0000000706030201, 0x0000000706030200, + 0x0000000007060302, 0x0000000706030100, 0x0000000007060301, + 0x0000000007060300, 0x0000000000070603, 0x0000000706020100, + 0x0000000007060201, 0x0000000007060200, 0x0000000000070602, + 0x0000000007060100, 0x0000000000070601, 0x0000000000070600, + 0x0000000000000706, 0x0007050403020100, 0x0000070504030201, + 0x0000070504030200, 0x0000000705040302, 0x0000070504030100, + 0x0000000705040301, 0x0000000705040300, 0x0000000007050403, + 0x0000070504020100, 0x0000000705040201, 0x0000000705040200, + 0x0000000007050402, 0x0000000705040100, 0x0000000007050401, + 0x0000000007050400, 0x0000000000070504, 0x0000070503020100, + 0x0000000705030201, 0x0000000705030200, 0x0000000007050302, + 0x0000000705030100, 0x0000000007050301, 0x0000000007050300, + 0x0000000000070503, 0x0000000705020100, 0x0000000007050201, + 0x0000000007050200, 0x0000000000070502, 0x0000000007050100, + 0x0000000000070501, 0x0000000000070500, 0x0000000000000705, + 0x0000070403020100, 0x0000000704030201, 0x0000000704030200, + 0x0000000007040302, 0x0000000704030100, 0x0000000007040301, + 0x0000000007040300, 0x0000000000070403, 0x0000000704020100, + 0x0000000007040201, 0x0000000007040200, 0x0000000000070402, + 0x0000000007040100, 0x0000000000070401, 0x0000000000070400, + 0x0000000000000704, 0x0000000703020100, 0x0000000007030201, + 0x0000000007030200, 0x0000000000070302, 0x0000000007030100, + 0x0000000000070301, 0x0000000000070300, 0x0000000000000703, + 0x0000000007020100, 0x0000000000070201, 0x0000000000070200, + 0x0000000000000702, 0x0000000000070100, 0x0000000000000701, + 0x0000000000000700, 0x0000000000000007, 0x0006050403020100, + 0x0000060504030201, 0x0000060504030200, 0x0000000605040302, + 0x0000060504030100, 0x0000000605040301, 0x0000000605040300, + 0x0000000006050403, 0x0000060504020100, 0x0000000605040201, + 0x0000000605040200, 0x0000000006050402, 0x0000000605040100, + 0x0000000006050401, 0x0000000006050400, 0x0000000000060504, + 0x0000060503020100, 0x0000000605030201, 0x0000000605030200, + 0x0000000006050302, 0x0000000605030100, 0x0000000006050301, + 0x0000000006050300, 0x0000000000060503, 0x0000000605020100, + 0x0000000006050201, 0x0000000006050200, 0x0000000000060502, + 0x0000000006050100, 0x0000000000060501, 0x0000000000060500, + 0x0000000000000605, 0x0000060403020100, 0x0000000604030201, + 0x0000000604030200, 0x0000000006040302, 0x0000000604030100, + 0x0000000006040301, 0x0000000006040300, 0x0000000000060403, + 0x0000000604020100, 0x0000000006040201, 0x0000000006040200, + 0x0000000000060402, 0x0000000006040100, 0x0000000000060401, + 0x0000000000060400, 0x0000000000000604, 0x0000000603020100, + 0x0000000006030201, 0x0000000006030200, 0x0000000000060302, + 0x0000000006030100, 0x0000000000060301, 0x0000000000060300, + 0x0000000000000603, 0x0000000006020100, 0x0000000000060201, + 0x0000000000060200, 0x0000000000000602, 0x0000000000060100, + 0x0000000000000601, 0x0000000000000600, 0x0000000000000006, + 0x0000050403020100, 0x0000000504030201, 0x0000000504030200, + 0x0000000005040302, 0x0000000504030100, 0x0000000005040301, + 0x0000000005040300, 0x0000000000050403, 0x0000000504020100, + 0x0000000005040201, 0x0000000005040200, 0x0000000000050402, + 0x0000000005040100, 0x0000000000050401, 0x0000000000050400, + 0x0000000000000504, 0x0000000503020100, 0x0000000005030201, + 0x0000000005030200, 0x0000000000050302, 0x0000000005030100, + 0x0000000000050301, 0x0000000000050300, 0x0000000000000503, + 0x0000000005020100, 0x0000000000050201, 0x0000000000050200, + 0x0000000000000502, 0x0000000000050100, 0x0000000000000501, + 0x0000000000000500, 0x0000000000000005, 0x0000000403020100, + 0x0000000004030201, 0x0000000004030200, 0x0000000000040302, + 0x0000000004030100, 0x0000000000040301, 0x0000000000040300, + 0x0000000000000403, 0x0000000004020100, 0x0000000000040201, + 0x0000000000040200, 0x0000000000000402, 0x0000000000040100, + 0x0000000000000401, 0x0000000000000400, 0x0000000000000004, + 0x0000000003020100, 0x0000000000030201, 0x0000000000030200, + 0x0000000000000302, 0x0000000000030100, 0x0000000000000301, + 0x0000000000000300, 0x0000000000000003, 0x0000000000020100, + 0x0000000000000201, 0x0000000000000200, 0x0000000000000002, + 0x0000000000000100, 0x0000000000000001, 0x0000000000000000, + 0x0000000000000000, +}; //static uint64_t thintable_epi8[256] + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_IMPLEMENTATION_ARM64 || SIMDJSON_IMPLEMENTATION_ICELAKE || SIMDJSON_IMPLEMENTATION_HASWELL || SIMDJSON_IMPLEMENTATION_WESTMERE || SIMDJSON_IMPLEMENTATION_PPC64 + +#endif // SIMDJSON_SRC_SIMDPRUNE_TABLES_CPP +/* end file internal/simdprune_tables.cpp */ + +/* including simdjson/generic/dependencies.h: #include */ +/* begin file simdjson/generic/dependencies.h */ +#ifdef SIMDJSON_CONDITIONAL_INCLUDE +#error simdjson/generic/dependencies.h must be included before defining SIMDJSON_CONDITIONAL_INCLUDE! +#endif + +#ifndef SIMDJSON_GENERIC_DEPENDENCIES_H +#define SIMDJSON_GENERIC_DEPENDENCIES_H + +// Internal headers needed for generics. +// All includes referencing simdjson headers *not* under simdjson/generic must be here! +// Otherwise, amalgamation will fail. +/* skipped duplicate #include "simdjson/base.h" */ +/* including simdjson/implementation.h: #include "simdjson/implementation.h" */ +/* begin file simdjson/implementation.h */ +#ifndef SIMDJSON_IMPLEMENTATION_H +#define SIMDJSON_IMPLEMENTATION_H + +/* including simdjson/internal/atomic_ptr.h: #include "simdjson/internal/atomic_ptr.h" */ +/* begin file simdjson/internal/atomic_ptr.h */ +#ifndef SIMDJSON_INTERNAL_ATOMIC_PTR_H +#define SIMDJSON_INTERNAL_ATOMIC_PTR_H + +/* skipped duplicate #include "simdjson/base.h" */ +#include + +namespace simdjson { +namespace internal { + +template +class atomic_ptr { +public: + atomic_ptr(T *_ptr) : ptr{_ptr} {} + + operator const T*() const { return ptr.load(); } + const T& operator*() const { return *ptr; } + const T* operator->() const { return ptr.load(); } + + operator T*() { return ptr.load(); } + T& operator*() { return *ptr; } + T* operator->() { return ptr.load(); } + atomic_ptr& operator=(T *_ptr) { ptr = _ptr; return *this; } + +private: + std::atomic ptr; +}; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_ATOMIC_PTR_H +/* end file simdjson/internal/atomic_ptr.h */ +/* including simdjson/internal/dom_parser_implementation.h: #include "simdjson/internal/dom_parser_implementation.h" */ +/* begin file simdjson/internal/dom_parser_implementation.h */ +#ifndef SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H +#define SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H + +/* skipped duplicate #include "simdjson/base.h" */ +/* skipped duplicate #include "simdjson/error.h" */ +#include + +namespace simdjson { + +namespace dom { +class document; +} // namespace dom + +/** +* This enum is used with the dom_parser_implementation::stage1 function. +* 1) The regular mode expects a fully formed JSON document. +* 2) The streaming_partial mode expects a possibly truncated +* input within a stream on JSON documents. +* 3) The stream_final mode allows us to truncate final +* unterminated strings. It is useful in conjunction with streaming_partial. +*/ +enum class stage1_mode { regular, streaming_partial, streaming_final}; + +/** + * Returns true if mode == streaming_partial or mode == streaming_final + */ +inline bool is_streaming(stage1_mode mode) { + // performance note: it is probably faster to check that mode is different + // from regular than checking that it is either streaming_partial or streaming_final. + return (mode != stage1_mode::regular); + // return (mode == stage1_mode::streaming_partial || mode == stage1_mode::streaming_final); +} + + +namespace internal { + + +/** + * An implementation of simdjson's DOM parser for a particular CPU architecture. + * + * This class is expected to be accessed only by pointer, and never move in memory (though the + * pointer can move). + */ +class dom_parser_implementation { +public: + + /** + * @private For internal implementation use + * + * Run a full JSON parse on a single document (stage1 + stage2). + * + * Guaranteed only to be called when capacity > document length. + * + * Overridden by each implementation. + * + * @param buf The json document to parse. *MUST* be allocated up to len + SIMDJSON_PADDING bytes. + * @param len The length of the json document. + * @return The error code, or SUCCESS if there was no error. + */ + simdjson_warn_unused virtual error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept = 0; + + /** + * @private For internal implementation use + * + * Stage 1 of the document parser. + * + * Guaranteed only to be called when capacity > document length. + * + * Overridden by each implementation. + * + * @param buf The json document to parse. + * @param len The length of the json document. + * @param streaming Whether this is being called by parser::parse_many. + * @return The error code, or SUCCESS if there was no error. + */ + simdjson_warn_unused virtual error_code stage1(const uint8_t *buf, size_t len, stage1_mode streaming) noexcept = 0; + + /** + * @private For internal implementation use + * + * Stage 2 of the document parser. + * + * Called after stage1(). + * + * Overridden by each implementation. + * + * @param doc The document to output to. + * @return The error code, or SUCCESS if there was no error. + */ + simdjson_warn_unused virtual error_code stage2(dom::document &doc) noexcept = 0; + + /** + * @private For internal implementation use + * + * Stage 2 of the document parser for parser::parse_many. + * + * Guaranteed only to be called after stage1(). + * Overridden by each implementation. + * + * @param doc The document to output to. + * @return The error code, SUCCESS if there was no error, or EMPTY if all documents have been parsed. + */ + simdjson_warn_unused virtual error_code stage2_next(dom::document &doc) noexcept = 0; + + /** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + * + * Overridden by each implementation. + * + * @param str pointer to the beginning of a valid UTF-8 JSON string, must end with an unescaped quote. + * @param dst pointer to a destination buffer, it must point a region in memory of sufficient size. + * @param allow_replacement whether we allow a replacement character when the UTF-8 contains unmatched surrogate pairs. + * @return end of the of the written region (exclusive) or nullptr in case of error. + */ + simdjson_warn_unused virtual uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept = 0; + + /** + * Unescape a NON-valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + * + * Overridden by each implementation. + * + * @param str pointer to the beginning of a possibly invalid UTF-8 JSON string, must end with an unescaped quote. + * @param dst pointer to a destination buffer, it must point a region in memory of sufficient size. + * @return end of the of the written region (exclusive) or nullptr in case of error. + */ + simdjson_warn_unused virtual uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept = 0; + + /** + * Change the capacity of this parser. + * + * The capacity can never exceed SIMDJSON_MAXSIZE_BYTES (e.g., 4 GB) + * and an CAPACITY error is returned if it is attempted. + * + * Generally used for reallocation. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. + * @return The error code, or SUCCESS if there was no error. + */ + virtual error_code set_capacity(size_t capacity) noexcept = 0; + + /** + * Change the max depth of this parser. + * + * Generally used for reallocation. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. + * @return The error code, or SUCCESS if there was no error. + */ + virtual error_code set_max_depth(size_t max_depth) noexcept = 0; + + /** + * Deallocate this parser. + */ + virtual ~dom_parser_implementation() = default; + + /** Number of structural indices passed from stage 1 to stage 2 */ + uint32_t n_structural_indexes{0}; + /** Structural indices passed from stage 1 to stage 2 */ + std::unique_ptr structural_indexes{}; + /** Next structural index to parse */ + uint32_t next_structural_index{0}; + + /** + * The largest document this parser can support without reallocating. + * + * @return Current capacity, in bytes. + */ + simdjson_inline size_t capacity() const noexcept; + + /** + * The maximum level of nested object and arrays supported by this parser. + * + * @return Maximum depth, in bytes. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused inline error_code allocate(size_t capacity, size_t max_depth) noexcept; + + +protected: + /** + * The maximum document length this parser supports. + * + * Buffers are large enough to handle any document up to this length. + */ + size_t _capacity{0}; + + /** + * The maximum depth (number of nested objects and arrays) supported by this parser. + * + * Defaults to DEFAULT_MAX_DEPTH. + */ + size_t _max_depth{0}; + + // Declaring these so that subclasses can use them to implement their constructors. + simdjson_inline dom_parser_implementation() noexcept; + simdjson_inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + simdjson_inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + + simdjson_inline dom_parser_implementation(const dom_parser_implementation &) noexcept = delete; + simdjson_inline dom_parser_implementation &operator=(const dom_parser_implementation &other) noexcept = delete; +}; // class dom_parser_implementation + +simdjson_inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +simdjson_inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +simdjson_inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +simdjson_inline size_t dom_parser_implementation::capacity() const noexcept { + return _capacity; +} + +simdjson_inline size_t dom_parser_implementation::max_depth() const noexcept { + return _max_depth; +} + +simdjson_warn_unused +inline error_code dom_parser_implementation::allocate(size_t capacity, size_t max_depth) noexcept { + if (this->max_depth() != max_depth) { + error_code err = set_max_depth(max_depth); + if (err) { return err; } + } + if (_capacity != capacity) { + error_code err = set_capacity(capacity); + if (err) { return err; } + } + return SUCCESS; +} + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/internal/dom_parser_implementation.h */ + +#include + +namespace simdjson { + +/** + * Validate the UTF-8 string. + * + * @param buf the string to validate. + * @param len the length of the string in bytes. + * @return true if the string is valid UTF-8. + */ +simdjson_warn_unused bool validate_utf8(const char * buf, size_t len) noexcept; +/** + * Validate the UTF-8 string. + * + * @param sv the string_view to validate. + * @return true if the string is valid UTF-8. + */ +simdjson_inline simdjson_warn_unused bool validate_utf8(const std::string_view sv) noexcept { + return validate_utf8(sv.data(), sv.size()); +} + +/** + * Validate the UTF-8 string. + * + * @param p the string to validate. + * @return true if the string is valid UTF-8. + */ +simdjson_inline simdjson_warn_unused bool validate_utf8(const std::string& s) noexcept { + return validate_utf8(s.data(), s.size()); +} + +/** + * An implementation of simdjson for a particular CPU architecture. + * + * Also used to maintain the currently active implementation. The active implementation is + * automatically initialized on first use to the most advanced implementation supported by the host. + */ +class implementation { +public: + + /** + * The name of this implementation. + * + * const implementation *impl = simdjson::get_active_implementation(); + * cout << "simdjson is optimized for " << impl->name() << "(" << impl->description() << ")" << endl; + * + * @return the name of the implementation, e.g. "haswell", "westmere", "arm64". + */ + virtual const std::string &name() const { return _name; } + + /** + * The description of this implementation. + * + * const implementation *impl = simdjson::get_active_implementation(); + * cout << "simdjson is optimized for " << impl->name() << "(" << impl->description() << ")" << endl; + * + * @return the description of the implementation, e.g. "Intel/AMD AVX2", "Intel/AMD SSE4.2", "ARM NEON". + */ + virtual const std::string &description() const { return _description; } + + /** + * The instruction sets this implementation is compiled against + * and the current CPU match. This function may poll the current CPU/system + * and should therefore not be called too often if performance is a concern. + * + * @return true if the implementation can be safely used on the current system (determined at runtime). + */ + bool supported_by_runtime_system() const; + + /** + * @private For internal implementation use + * + * The instruction sets this implementation is compiled against. + * + * @return a mask of all required `internal::instruction_set::` values. + */ + virtual uint32_t required_instruction_sets() const { return _required_instruction_sets; } + + /** + * @private For internal implementation use + * + * const implementation *impl = simdjson::get_active_implementation(); + * cout << "simdjson is optimized for " << impl->name() << "(" << impl->description() << ")" << endl; + * + * @param capacity The largest document that will be passed to the parser. + * @param max_depth The maximum JSON object/array nesting this parser is expected to handle. + * @param dst The place to put the resulting parser implementation. + * @return the error code, or SUCCESS if there was no error. + */ + virtual error_code create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr &dst + ) const noexcept = 0; + + /** + * @private For internal implementation use + * + * Minify the input string assuming that it represents a JSON string, does not parse or validate. + * + * Overridden by each implementation. + * + * @param buf the json document to minify. + * @param len the length of the json document. + * @param dst the buffer to write the minified document to. *MUST* be allocated up to len + SIMDJSON_PADDING bytes. + * @param dst_len the number of bytes written. Output only. + * @return the error code, or SUCCESS if there was no error. + */ + simdjson_warn_unused virtual error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept = 0; + + + /** + * Validate the UTF-8 string. + * + * Overridden by each implementation. + * + * @param buf the string to validate. + * @param len the length of the string in bytes. + * @return true if and only if the string is valid UTF-8. + */ + simdjson_warn_unused virtual bool validate_utf8(const char *buf, size_t len) const noexcept = 0; + +protected: + /** @private Construct an implementation with the given name and description. For subclasses. */ + simdjson_inline implementation( + std::string_view name, + std::string_view description, + uint32_t required_instruction_sets + ) : + _name(name), + _description(description), + _required_instruction_sets(required_instruction_sets) + { + } + virtual ~implementation()=default; + +private: + /** + * The name of this implementation. + */ + const std::string _name; + + /** + * The description of this implementation. + */ + const std::string _description; + + /** + * Instruction sets required for this implementation. + */ + const uint32_t _required_instruction_sets; +}; + +/** @private */ +namespace internal { + +/** + * The list of available implementations compiled into simdjson. + */ +class available_implementation_list { +public: + /** Get the list of available implementations compiled into simdjson */ + simdjson_inline available_implementation_list() {} + /** Number of implementations */ + size_t size() const noexcept; + /** STL const begin() iterator */ + const implementation * const *begin() const noexcept; + /** STL const end() iterator */ + const implementation * const *end() const noexcept; + + /** + * Get the implementation with the given name. + * + * Case sensitive. + * + * const implementation *impl = simdjson::get_available_implementations()["westmere"]; + * if (!impl) { exit(1); } + * if (!imp->supported_by_runtime_system()) { exit(1); } + * simdjson::get_active_implementation() = impl; + * + * @param name the implementation to find, e.g. "westmere", "haswell", "arm64" + * @return the implementation, or nullptr if the parse failed. + */ + const implementation * operator[](const std::string_view &name) const noexcept { + for (const implementation * impl : *this) { + if (impl->name() == name) { return impl; } + } + return nullptr; + } + + /** + * Detect the most advanced implementation supported by the current host. + * + * This is used to initialize the implementation on startup. + * + * const implementation *impl = simdjson::available_implementation::detect_best_supported(); + * simdjson::get_active_implementation() = impl; + * + * @return the most advanced supported implementation for the current host, or an + * implementation that returns UNSUPPORTED_ARCHITECTURE if there is no supported + * implementation. Will never return nullptr. + */ + const implementation *detect_best_supported() const noexcept; +}; + +} // namespace internal + +/** + * The list of available implementations compiled into simdjson. + */ +extern SIMDJSON_DLLIMPORTEXPORT const internal::available_implementation_list& get_available_implementations(); + +/** + * The active implementation. + * + * Automatically initialized on first use to the most advanced implementation supported by this hardware. + */ +extern SIMDJSON_DLLIMPORTEXPORT internal::atomic_ptr& get_active_implementation(); + +} // namespace simdjson + +#endif // SIMDJSON_IMPLEMENTATION_H +/* end file simdjson/implementation.h */ +/* skipped duplicate #include "simdjson/implementation_detection.h" */ +/* including simdjson/internal/instruction_set.h: #include "simdjson/internal/instruction_set.h" */ +/* begin file simdjson/internal/instruction_set.h */ +/* From +https://github.com/endorno/pytorch/blob/master/torch/lib/TH/generic/simd/simd.h +Highly modified. + +Copyright (c) 2016- Facebook, Inc (Adam Paszke) +Copyright (c) 2014- Facebook, Inc (Soumith Chintala) +Copyright (c) 2011-2014 Idiap Research Institute (Ronan Collobert) +Copyright (c) 2012-2014 Deepmind Technologies (Koray Kavukcuoglu) +Copyright (c) 2011-2012 NEC Laboratories America (Koray Kavukcuoglu) +Copyright (c) 2011-2013 NYU (Clement Farabet) +Copyright (c) 2006-2010 NEC Laboratories America (Ronan Collobert, Leon Bottou, +Iain Melvin, Jason Weston) Copyright (c) 2006 Idiap Research Institute +(Samy Bengio) Copyright (c) 2001-2004 Idiap Research Institute (Ronan Collobert, +Samy Bengio, Johnny Mariethoz) + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +3. Neither the names of Facebook, Deepmind Technologies, NYU, NEC Laboratories +America and IDIAP Research Institute nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef SIMDJSON_INTERNAL_INSTRUCTION_SET_H +#define SIMDJSON_INTERNAL_INSTRUCTION_SET_H + +namespace simdjson { +namespace internal { + +enum instruction_set { + DEFAULT = 0x0, + NEON = 0x1, + AVX2 = 0x4, + SSE42 = 0x8, + PCLMULQDQ = 0x10, + BMI1 = 0x20, + BMI2 = 0x40, + ALTIVEC = 0x80, + AVX512F = 0x100, + AVX512DQ = 0x200, + AVX512IFMA = 0x400, + AVX512PF = 0x800, + AVX512ER = 0x1000, + AVX512CD = 0x2000, + AVX512BW = 0x4000, + AVX512VL = 0x8000, + AVX512VBMI2 = 0x10000 +}; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_INSTRUCTION_SET_H +/* end file simdjson/internal/instruction_set.h */ +/* skipped duplicate #include "simdjson/internal/dom_parser_implementation.h" */ +/* skipped duplicate #include "simdjson/internal/jsoncharutils_tables.h" */ +/* skipped duplicate #include "simdjson/internal/numberparsing_tables.h" */ +/* including simdjson/internal/simdprune_tables.h: #include "simdjson/internal/simdprune_tables.h" */ +/* begin file simdjson/internal/simdprune_tables.h */ +#ifndef SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H +#define SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H + +/* skipped duplicate #include "simdjson/base.h" */ + +#include + +namespace simdjson { // table modified and copied from +namespace internal { // http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetTable + +extern SIMDJSON_DLLIMPORTEXPORT const unsigned char BitsSetTable256mul2[256]; + +extern SIMDJSON_DLLIMPORTEXPORT const uint8_t pshufb_combine_table[272]; + +// 256 * 8 bytes = 2kB, easily fits in cache. +extern SIMDJSON_DLLIMPORTEXPORT const uint64_t thintable_epi8[256]; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H +/* end file simdjson/internal/simdprune_tables.h */ + +#endif // SIMDJSON_GENERIC_DEPENDENCIES_H +/* end file simdjson/generic/dependencies.h */ +/* including generic/dependencies.h: #include */ +/* begin file generic/dependencies.h */ +#ifdef SIMDJSON_CONDITIONAL_INCLUDE +#error generic/dependencies.h must be included before defining SIMDJSON_CONDITIONAL_INCLUDE! +#endif + +#ifndef SIMDJSON_SRC_GENERIC_DEPENDENCIES_H +#define SIMDJSON_SRC_GENERIC_DEPENDENCIES_H + +/* skipped duplicate #include */ + +#endif // SIMDJSON_SRC_GENERIC_DEPENDENCIES_H +/* end file generic/dependencies.h */ +/* including generic/stage1/dependencies.h: #include */ +/* begin file generic/stage1/dependencies.h */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_DEPENDENCIES_H +#define SIMDJSON_SRC_GENERIC_STAGE1_DEPENDENCIES_H + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_DEPENDENCIES_H +/* end file generic/stage1/dependencies.h */ +/* including generic/stage2/dependencies.h: #include */ +/* begin file generic/stage2/dependencies.h */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_DEPENDENCIES_H +#define SIMDJSON_SRC_GENERIC_STAGE2_DEPENDENCIES_H + +/* including simdjson/dom/document.h: #include */ +/* begin file simdjson/dom/document.h */ +#ifndef SIMDJSON_DOM_DOCUMENT_H +#define SIMDJSON_DOM_DOCUMENT_H + +/* including simdjson/dom/base.h: #include "simdjson/dom/base.h" */ +/* begin file simdjson/dom/base.h */ +#ifndef SIMDJSON_DOM_BASE_H +#define SIMDJSON_DOM_BASE_H + +/* skipped duplicate #include "simdjson/base.h" */ + +namespace simdjson { + +/** + * @brief A DOM API on top of the simdjson parser. + */ +namespace dom { + +/** The default batch size for parser.parse_many() and parser.load_many() */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; + +/** + * It is wasteful to allocate memory for tiny documents (e.g., 4 bytes). + */ +static constexpr size_t MINIMAL_DOCUMENT_CAPACITY = 32; + +class array; +class document; +class document_stream; +class element; +class key_value_pair; +class object; +class parser; + +#ifdef SIMDJSON_THREADS_ENABLED +struct stage1_worker; +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace dom + +namespace internal { + +template +class string_builder; +class tape_ref; + +} // namespace internal + +} // namespace simdjson + +#endif // SIMDJSON_DOM_BASE_H +/* end file simdjson/dom/base.h */ + +#include + +namespace simdjson { +namespace dom { + +/** + * A parsed JSON document. + * + * This class cannot be copied, only moved, to avoid unintended allocations. + */ +class document { +public: + /** + * Create a document container with zero capacity. + * + * The parser will allocate capacity as needed. + */ + document() noexcept = default; + ~document() noexcept = default; + + /** + * Take another document's buffers. + * + * @param other The document to take. Its capacity is zeroed and it is invalidated. + */ + document(document &&other) noexcept = default; + /** @private */ + document(const document &) = delete; // Disallow copying + /** + * Take another document's buffers. + * + * @param other The document to take. Its capacity is zeroed. + */ + document &operator=(document &&other) noexcept = default; + /** @private */ + document &operator=(const document &) = delete; // Disallow copying + + /** + * Get the root element of this document as a JSON array. + */ + element root() const noexcept; + + /** + * @private Dump the raw tape for debugging. + * + * @param os the stream to output to. + * @return false if the tape is likely wrong (e.g., you did not parse a valid JSON). + */ + bool dump_raw_tape(std::ostream &os) const noexcept; + + /** @private Structural values. */ + std::unique_ptr tape{}; + + /** @private String values. + * + * Should be at least byte_capacity. + */ + std::unique_ptr string_buf{}; + /** @private Allocate memory to support + * input JSON documents of up to len bytes. + * + * When calling this function, you lose + * all the data. + * + * The memory allocation is strict: you + * can you use this function to increase + * or lower the amount of allocated memory. + * Passsing zero clears the memory. + */ + error_code allocate(size_t len) noexcept; + /** @private Capacity in bytes, in terms + * of how many bytes of input JSON we can + * support. + */ + size_t capacity() const noexcept; + + +private: + size_t allocated_capacity{0}; + friend class parser; +}; // class document + +} // namespace dom +} // namespace simdjson + +#endif // SIMDJSON_DOM_DOCUMENT_H +/* end file simdjson/dom/document.h */ +/* including simdjson/internal/tape_type.h: #include */ +/* begin file simdjson/internal/tape_type.h */ +#ifndef SIMDJSON_INTERNAL_TAPE_TYPE_H +#define SIMDJSON_INTERNAL_TAPE_TYPE_H + +namespace simdjson { +namespace internal { + +/** + * The possible types in the tape. + */ +enum class tape_type { + ROOT = 'r', + START_ARRAY = '[', + START_OBJECT = '{', + END_ARRAY = ']', + END_OBJECT = '}', + STRING = '"', + INT64 = 'l', + UINT64 = 'u', + DOUBLE = 'd', + TRUE_VALUE = 't', + FALSE_VALUE = 'f', + NULL_VALUE = 'n' +}; // enum class tape_type + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_TAPE_TYPE_H +/* end file simdjson/internal/tape_type.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_DEPENDENCIES_H +/* end file generic/stage2/dependencies.h */ + +/* including implementation.cpp: #include */ +/* begin file implementation.cpp */ +#ifndef SIMDJSON_SRC_IMPLEMENTATION_CPP +#define SIMDJSON_SRC_IMPLEMENTATION_CPP + +/* skipped duplicate #include */ +/* skipped duplicate #include */ +/* skipped duplicate #include */ +/* including internal/isadetection.h: #include */ +/* begin file internal/isadetection.h */ +/* From +https://github.com/endorno/pytorch/blob/master/torch/lib/TH/generic/simd/simd.h +Highly modified. + +Copyright (c) 2016- Facebook, Inc (Adam Paszke) +Copyright (c) 2014- Facebook, Inc (Soumith Chintala) +Copyright (c) 2011-2014 Idiap Research Institute (Ronan Collobert) +Copyright (c) 2012-2014 Deepmind Technologies (Koray Kavukcuoglu) +Copyright (c) 2011-2012 NEC Laboratories America (Koray Kavukcuoglu) +Copyright (c) 2011-2013 NYU (Clement Farabet) +Copyright (c) 2006-2010 NEC Laboratories America (Ronan Collobert, Leon Bottou, +Iain Melvin, Jason Weston) Copyright (c) 2006 Idiap Research Institute +(Samy Bengio) Copyright (c) 2001-2004 Idiap Research Institute (Ronan Collobert, +Samy Bengio, Johnny Mariethoz) + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +3. Neither the names of Facebook, Deepmind Technologies, NYU, NEC Laboratories +America and IDIAP Research Institute nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. +*/ + +#ifndef SIMDJSON_INTERNAL_ISADETECTION_H +#define SIMDJSON_INTERNAL_ISADETECTION_H + +/* skipped duplicate #include "simdjson/internal/instruction_set.h" */ + +#include +#include +#if defined(_MSC_VER) +#include +#elif defined(HAVE_GCC_GET_CPUID) && defined(USE_GCC_GET_CPUID) +#include +#endif + +namespace simdjson { +namespace internal { + +#if defined(__PPC64__) + +static inline uint32_t detect_supported_architectures() { + return instruction_set::ALTIVEC; +} + +#elif defined(__aarch64__) || defined(_M_ARM64) + +static inline uint32_t detect_supported_architectures() { + return instruction_set::NEON; +} + +#elif defined(__x86_64__) || defined(_M_AMD64) // x64 + + +namespace { +// Can be found on Intel ISA Reference for CPUID +constexpr uint32_t cpuid_avx2_bit = 1 << 5; ///< @private Bit 5 of EBX for EAX=0x7 +constexpr uint32_t cpuid_bmi1_bit = 1 << 3; ///< @private bit 3 of EBX for EAX=0x7 +constexpr uint32_t cpuid_bmi2_bit = 1 << 8; ///< @private bit 8 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512f_bit = 1 << 16; ///< @private bit 16 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512dq_bit = 1 << 17; ///< @private bit 17 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512ifma_bit = 1 << 21; ///< @private bit 21 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512pf_bit = 1 << 26; ///< @private bit 26 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512er_bit = 1 << 27; ///< @private bit 27 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512cd_bit = 1 << 28; ///< @private bit 28 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512bw_bit = 1 << 30; ///< @private bit 30 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512vl_bit = 1U << 31; ///< @private bit 31 of EBX for EAX=0x7 +constexpr uint32_t cpuid_avx512vbmi2_bit = 1 << 6; ///< @private bit 6 of ECX for EAX=0x7 +constexpr uint64_t cpuid_avx256_saved = uint64_t(1) << 2; ///< @private bit 2 = AVX +constexpr uint64_t cpuid_avx512_saved = uint64_t(7) << 5; ///< @private bits 5,6,7 = opmask, ZMM_hi256, hi16_ZMM +constexpr uint32_t cpuid_sse42_bit = 1 << 20; ///< @private bit 20 of ECX for EAX=0x1 +constexpr uint32_t cpuid_osxsave = (uint32_t(1) << 26) | (uint32_t(1) << 27); ///< @private bits 26+27 of ECX for EAX=0x1 +constexpr uint32_t cpuid_pclmulqdq_bit = 1 << 1; ///< @private bit 1 of ECX for EAX=0x1 +} + + + +static inline void cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, + uint32_t *edx) { +#if defined(_MSC_VER) + int cpu_info[4]; + __cpuidex(cpu_info, *eax, *ecx); + *eax = cpu_info[0]; + *ebx = cpu_info[1]; + *ecx = cpu_info[2]; + *edx = cpu_info[3]; +#elif defined(HAVE_GCC_GET_CPUID) && defined(USE_GCC_GET_CPUID) + uint32_t level = *eax; + __get_cpuid(level, eax, ebx, ecx, edx); +#else + uint32_t a = *eax, b, c = *ecx, d; + asm volatile("cpuid\n\t" : "+a"(a), "=b"(b), "+c"(c), "=d"(d)); + *eax = a; + *ebx = b; + *ecx = c; + *edx = d; +#endif +} + + +static inline uint64_t xgetbv() { +#if defined(_MSC_VER) + return _xgetbv(0); +#else + uint32_t xcr0_lo, xcr0_hi; + asm volatile("xgetbv\n\t" : "=a" (xcr0_lo), "=d" (xcr0_hi) : "c" (0)); + return xcr0_lo | (uint64_t(xcr0_hi) << 32); +#endif +} + +static inline uint32_t detect_supported_architectures() { + uint32_t eax, ebx, ecx, edx; + uint32_t host_isa = 0x0; + + // EBX for EAX=0x1 + eax = 0x1; + ecx = 0x0; + cpuid(&eax, &ebx, &ecx, &edx); + + if (ecx & cpuid_sse42_bit) { + host_isa |= instruction_set::SSE42; + } else { + return host_isa; // everything after is redundant + } + + if (ecx & cpuid_pclmulqdq_bit) { + host_isa |= instruction_set::PCLMULQDQ; + } + + + if ((ecx & cpuid_osxsave) != cpuid_osxsave) { + return host_isa; + } + + // xgetbv for checking if the OS saves registers + uint64_t xcr0 = xgetbv(); + + if ((xcr0 & cpuid_avx256_saved) == 0) { + return host_isa; + } + + // ECX for EAX=0x7 + eax = 0x7; + ecx = 0x0; + cpuid(&eax, &ebx, &ecx, &edx); + if (ebx & cpuid_avx2_bit) { + host_isa |= instruction_set::AVX2; + } + if (ebx & cpuid_bmi1_bit) { + host_isa |= instruction_set::BMI1; + } + + if (ebx & cpuid_bmi2_bit) { + host_isa |= instruction_set::BMI2; + } + + if (!((xcr0 & cpuid_avx512_saved) == cpuid_avx512_saved)) { + return host_isa; + } + + if (ebx & cpuid_avx512f_bit) { + host_isa |= instruction_set::AVX512F; + } + + if (ebx & cpuid_avx512dq_bit) { + host_isa |= instruction_set::AVX512DQ; + } + + if (ebx & cpuid_avx512ifma_bit) { + host_isa |= instruction_set::AVX512IFMA; + } + + if (ebx & cpuid_avx512pf_bit) { + host_isa |= instruction_set::AVX512PF; + } + + if (ebx & cpuid_avx512er_bit) { + host_isa |= instruction_set::AVX512ER; + } + + if (ebx & cpuid_avx512cd_bit) { + host_isa |= instruction_set::AVX512CD; + } + + if (ebx & cpuid_avx512bw_bit) { + host_isa |= instruction_set::AVX512BW; + } + + if (ebx & cpuid_avx512vl_bit) { + host_isa |= instruction_set::AVX512VL; + } + + if (ecx & cpuid_avx512vbmi2_bit) { + host_isa |= instruction_set::AVX512VBMI2; + } + + return host_isa; +} +#else // fallback + + +static inline uint32_t detect_supported_architectures() { + return instruction_set::DEFAULT; +} + + +#endif // end SIMD extension detection code + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_ISADETECTION_H +/* end file internal/isadetection.h */ + +#include + +namespace simdjson { + +bool implementation::supported_by_runtime_system() const { + uint32_t required_instruction_sets = this->required_instruction_sets(); + uint32_t supported_instruction_sets = internal::detect_supported_architectures(); + return ((supported_instruction_sets & required_instruction_sets) == required_instruction_sets); +} + +} // namespace simdjson + +/* defining SIMDJSON_CONDITIONAL_INCLUDE */ +#define SIMDJSON_CONDITIONAL_INCLUDE + +#if SIMDJSON_IMPLEMENTATION_ARM64 +/* including simdjson/arm64/implementation.h: #include */ +/* begin file simdjson/arm64/implementation.h */ +#ifndef SIMDJSON_ARM64_IMPLEMENTATION_H +#define SIMDJSON_ARM64_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation("arm64", "ARM NEON", internal::instruction_set::NEON) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_IMPLEMENTATION_H +/* end file simdjson/arm64/implementation.h */ +namespace simdjson { +namespace internal { +static const arm64::implementation* get_arm64_singleton() { + static const arm64::implementation arm64_singleton{}; + return &arm64_singleton; +} +} // namespace internal +} // namespace simdjson +#endif // SIMDJSON_IMPLEMENTATION_ARM64 + +#if SIMDJSON_IMPLEMENTATION_FALLBACK +/* including simdjson/fallback/implementation.h: #include */ +/* begin file simdjson/fallback/implementation.h */ +#ifndef SIMDJSON_FALLBACK_IMPLEMENTATION_H +#define SIMDJSON_FALLBACK_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "fallback", + "Generic fallback implementation", + 0 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_IMPLEMENTATION_H +/* end file simdjson/fallback/implementation.h */ +namespace simdjson { +namespace internal { +static const fallback::implementation* get_fallback_singleton() { + static const fallback::implementation fallback_singleton{}; + return &fallback_singleton; +} +} // namespace internal +} // namespace simdjson +#endif // SIMDJSON_IMPLEMENTATION_FALLBACK + + +#if SIMDJSON_IMPLEMENTATION_HASWELL +/* including simdjson/haswell/implementation.h: #include */ +/* begin file simdjson/haswell/implementation.h */ +#ifndef SIMDJSON_HASWELL_IMPLEMENTATION_H +#define SIMDJSON_HASWELL_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_HASWELL +namespace simdjson { +namespace haswell { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "haswell", + "Intel/AMD AVX2", + internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_IMPLEMENTATION_H +/* end file simdjson/haswell/implementation.h */ +namespace simdjson { +namespace internal { +static const haswell::implementation* get_haswell_singleton() { + static const haswell::implementation haswell_singleton{}; + return &haswell_singleton; +} +} // namespace internal +} // namespace simdjson +#endif + +#if SIMDJSON_IMPLEMENTATION_ICELAKE +/* including simdjson/icelake/implementation.h: #include */ +/* begin file simdjson/icelake/implementation.h */ +#ifndef SIMDJSON_ICELAKE_IMPLEMENTATION_H +#define SIMDJSON_ICELAKE_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE +namespace simdjson { +namespace icelake { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "icelake", + "Intel/AMD AVX512", + internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 | internal::instruction_set::AVX512F | internal::instruction_set::AVX512DQ | internal::instruction_set::AVX512CD | internal::instruction_set::AVX512BW | internal::instruction_set::AVX512VL | internal::instruction_set::AVX512VBMI2 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_IMPLEMENTATION_H +/* end file simdjson/icelake/implementation.h */ +namespace simdjson { +namespace internal { +static const icelake::implementation* get_icelake_singleton() { + static const icelake::implementation icelake_singleton{}; + return &icelake_singleton; +} +} // namespace internal +} // namespace simdjson +#endif + +#if SIMDJSON_IMPLEMENTATION_PPC64 +/* including simdjson/ppc64/implementation.h: #include */ +/* begin file simdjson/ppc64/implementation.h */ +#ifndef SIMDJSON_PPC64_IMPLEMENTATION_H +#define SIMDJSON_PPC64_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +/** + * Implementation for ALTIVEC (PPC64). + */ +namespace ppc64 { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() + : simdjson::implementation("ppc64", "PPC64 ALTIVEC", + internal::instruction_set::ALTIVEC) {} + + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, size_t max_length, + std::unique_ptr &dst) + const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, + uint8_t *dst, + size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, + size_t len) const noexcept final; +}; + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_IMPLEMENTATION_H +/* end file simdjson/ppc64/implementation.h */ +namespace simdjson { +namespace internal { +static const ppc64::implementation* get_ppc64_singleton() { + static const ppc64::implementation ppc64_singleton{}; + return &ppc64_singleton; +} +} // namespace internal +} // namespace simdjson +#endif // SIMDJSON_IMPLEMENTATION_PPC64 + +#if SIMDJSON_IMPLEMENTATION_WESTMERE +/* including simdjson/westmere/implementation.h: #include */ +/* begin file simdjson/westmere/implementation.h */ +#ifndef SIMDJSON_WESTMERE_IMPLEMENTATION_H +#define SIMDJSON_WESTMERE_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +namespace westmere { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation("westmere", "Intel/AMD SSE4.2", internal::instruction_set::SSE42 | internal::instruction_set::PCLMULQDQ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_IMPLEMENTATION_H +/* end file simdjson/westmere/implementation.h */ +namespace simdjson { +namespace internal { +static const simdjson::westmere::implementation* get_westmere_singleton() { + static const simdjson::westmere::implementation westmere_singleton{}; + return &westmere_singleton; +} +} // namespace internal +} // namespace simdjson +#endif // SIMDJSON_IMPLEMENTATION_WESTMERE + +/* undefining SIMDJSON_CONDITIONAL_INCLUDE */ +#undef SIMDJSON_CONDITIONAL_INCLUDE + +namespace simdjson { +namespace internal { + +// Static array of known implementations. We're hoping these get baked into the executable +// without requiring a static initializer. + +/** + * @private Detects best supported implementation on first use, and sets it + */ +class detect_best_supported_implementation_on_first_use final : public implementation { +public: + const std::string &name() const noexcept final { return set_best()->name(); } + const std::string &description() const noexcept final { return set_best()->description(); } + uint32_t required_instruction_sets() const noexcept final { return set_best()->required_instruction_sets(); } + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final { + return set_best()->create_dom_parser_implementation(capacity, max_length, dst); + } + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final { + return set_best()->minify(buf, len, dst, dst_len); + } + simdjson_warn_unused bool validate_utf8(const char * buf, size_t len) const noexcept final override { + return set_best()->validate_utf8(buf, len); + } + simdjson_inline detect_best_supported_implementation_on_first_use() noexcept : implementation("best_supported_detector", "Detects the best supported implementation and sets it", 0) {} +private: + const implementation *set_best() const noexcept; +}; + +static const std::initializer_list& get_available_implementation_pointers() { + static const std::initializer_list available_implementation_pointers { +#if SIMDJSON_IMPLEMENTATION_ICELAKE + get_icelake_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_HASWELL + get_haswell_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_WESTMERE + get_westmere_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_ARM64 + get_arm64_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_PPC64 + get_ppc64_singleton(), +#endif +#if SIMDJSON_IMPLEMENTATION_FALLBACK + get_fallback_singleton(), +#endif + }; // available_implementation_pointers + return available_implementation_pointers; +} + +// So we can return UNSUPPORTED_ARCHITECTURE from the parser when there is no support +class unsupported_implementation final : public implementation { +public: + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t, + size_t, + std::unique_ptr& + ) const noexcept final { + return UNSUPPORTED_ARCHITECTURE; + } + simdjson_warn_unused error_code minify(const uint8_t *, size_t, uint8_t *, size_t &) const noexcept final override { + return UNSUPPORTED_ARCHITECTURE; + } + simdjson_warn_unused bool validate_utf8(const char *, size_t) const noexcept final override { + return false; // Just refuse to validate. Given that we have a fallback implementation + // it seems unlikely that unsupported_implementation will ever be used. If it is used, + // then it will flag all strings as invalid. The alternative is to return an error_code + // from which the user has to figure out whether the string is valid UTF-8... which seems + // like a lot of work just to handle the very unlikely case that we have an unsupported + // implementation. And, when it does happen (that we have an unsupported implementation), + // what are the chances that the programmer has a fallback? Given that *we* provide the + // fallback, it implies that the programmer would need a fallback for our fallback. + } + unsupported_implementation() : implementation("unsupported", "Unsupported CPU (no detected SIMD instructions)", 0) {} +}; + +const unsupported_implementation* get_unsupported_singleton() { + static const unsupported_implementation unsupported_singleton{}; + return &unsupported_singleton; +} + +size_t available_implementation_list::size() const noexcept { + return internal::get_available_implementation_pointers().size(); +} +const implementation * const *available_implementation_list::begin() const noexcept { + return internal::get_available_implementation_pointers().begin(); +} +const implementation * const *available_implementation_list::end() const noexcept { + return internal::get_available_implementation_pointers().end(); +} +const implementation *available_implementation_list::detect_best_supported() const noexcept { + // They are prelisted in priority order, so we just go down the list + uint32_t supported_instruction_sets = internal::detect_supported_architectures(); + for (const implementation *impl : internal::get_available_implementation_pointers()) { + uint32_t required_instruction_sets = impl->required_instruction_sets(); + if ((supported_instruction_sets & required_instruction_sets) == required_instruction_sets) { return impl; } + } + return get_unsupported_singleton(); // this should never happen? +} + +const implementation *detect_best_supported_implementation_on_first_use::set_best() const noexcept { + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + char *force_implementation_name = getenv("SIMDJSON_FORCE_IMPLEMENTATION"); + SIMDJSON_POP_DISABLE_WARNINGS + + if (force_implementation_name) { + auto force_implementation = get_available_implementations()[force_implementation_name]; + if (force_implementation) { + return get_active_implementation() = force_implementation; + } else { + // Note: abort() and stderr usage within the library is forbidden. + return get_active_implementation() = get_unsupported_singleton(); + } + } + return get_active_implementation() = get_available_implementations().detect_best_supported(); +} + +} // namespace internal + +SIMDJSON_DLLIMPORTEXPORT const internal::available_implementation_list& get_available_implementations() { + static const internal::available_implementation_list available_implementations{}; + return available_implementations; +} + +SIMDJSON_DLLIMPORTEXPORT internal::atomic_ptr& get_active_implementation() { + static const internal::detect_best_supported_implementation_on_first_use detect_best_supported_implementation_on_first_use_singleton; + static internal::atomic_ptr active_implementation{&detect_best_supported_implementation_on_first_use_singleton}; + return active_implementation; +} + +simdjson_warn_unused error_code minify(const char *buf, size_t len, char *dst, size_t &dst_len) noexcept { + return get_active_implementation()->minify(reinterpret_cast(buf), len, reinterpret_cast(dst), dst_len); +} +simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) noexcept { + return get_active_implementation()->validate_utf8(buf, len); +} +const implementation * builtin_implementation() { + static const implementation * builtin_impl = get_available_implementations()[SIMDJSON_STRINGIFY(SIMDJSON_BUILTIN_IMPLEMENTATION)]; + assert(builtin_impl); + return builtin_impl; +} + +} // namespace simdjson + +#endif // SIMDJSON_SRC_IMPLEMENTATION_CPP +/* end file implementation.cpp */ + +/* defining SIMDJSON_CONDITIONAL_INCLUDE */ +#define SIMDJSON_CONDITIONAL_INCLUDE + +#if SIMDJSON_IMPLEMENTATION_ARM64 +/* including arm64.cpp: #include */ +/* begin file arm64.cpp */ +#ifndef SIMDJSON_SRC_ARM64_CPP +#define SIMDJSON_SRC_ARM64_CPP + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* including simdjson/arm64.h: #include */ +/* begin file simdjson/arm64.h */ +#ifndef SIMDJSON_ARM64_H +#define SIMDJSON_ARM64_H + +/* including simdjson/arm64/begin.h: #include "simdjson/arm64/begin.h" */ +/* begin file simdjson/arm64/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "arm64" */ +#define SIMDJSON_IMPLEMENTATION arm64 +/* including simdjson/arm64/base.h: #include "simdjson/arm64/base.h" */ +/* begin file simdjson/arm64/base.h */ +#ifndef SIMDJSON_ARM64_BASE_H +#define SIMDJSON_ARM64_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Implementation for NEON (ARMv8). + */ +namespace arm64 { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_BASE_H +/* end file simdjson/arm64/base.h */ +/* including simdjson/arm64/intrinsics.h: #include "simdjson/arm64/intrinsics.h" */ +/* begin file simdjson/arm64/intrinsics.h */ +#ifndef SIMDJSON_ARM64_INTRINSICS_H +#define SIMDJSON_ARM64_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +static_assert(sizeof(uint8x16_t) <= simdjson::SIMDJSON_PADDING, "insufficient padding for arm64"); + +#endif // SIMDJSON_ARM64_INTRINSICS_H +/* end file simdjson/arm64/intrinsics.h */ +/* including simdjson/arm64/bitmanipulation.h: #include "simdjson/arm64/bitmanipulation.h" */ +/* begin file simdjson/arm64/bitmanipulation.h */ +#ifndef SIMDJSON_ARM64_BITMANIPULATION_H +#define SIMDJSON_ARM64_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int count_ones(uint64_t input_num) { + return vaddv_u8(vcnt_u8(vcreate_u8(input_num))); +} + + +#if defined(__GNUC__) // catches clang and gcc +/** + * ARM has a fast 64-bit "bit reversal function" that is handy. However, + * it is not generally available as an intrinsic function under Visual + * Studio (though this might be changing). Even under clang/gcc, we + * apparently need to invoke inline assembly. + */ +/* + * We use SIMDJSON_PREFER_REVERSE_BITS as a hint that algorithms that + * work well with bit reversal may use it. + */ +#define SIMDJSON_PREFER_REVERSE_BITS 1 + +/* reverse the bits */ +simdjson_inline uint64_t reverse_bits(uint64_t input_num) { + uint64_t rev_bits; + __asm("rbit %0, %1" : "=r"(rev_bits) : "r"(input_num)); + return rev_bits; +} + +/** + * Flips bit at index 63 - lz. Thus if you have 'leading_zeroes' leading zeroes, + * then this will set to zero the leading bit. It is possible for leading_zeroes to be + * greating or equal to 63 in which case we trigger undefined behavior, but the output + * of such undefined behavior is never used. + **/ +SIMDJSON_NO_SANITIZE_UNDEFINED +simdjson_inline uint64_t zero_leading_bit(uint64_t rev_bits, int leading_zeroes) { + return rev_bits ^ (uint64_t(0x8000000000000000) >> leading_zeroes); +} + +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, uint64_t *result) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_BITMANIPULATION_H +/* end file simdjson/arm64/bitmanipulation.h */ +/* including simdjson/arm64/bitmask.h: #include "simdjson/arm64/bitmask.h" */ +/* begin file simdjson/arm64/bitmask.h */ +#ifndef SIMDJSON_ARM64_BITMASK_H +#define SIMDJSON_ARM64_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + ///////////// + // We could do this with PMULL, but it is apparently slow. + // + //#ifdef __ARM_FEATURE_CRYPTO // some ARM processors lack this extension + //return vmull_p64(-1ULL, bitmask); + //#else + // Analysis by @sebpop: + // When diffing the assembly for src/stage1_find_marks.cpp I see that the eors are all spread out + // in between other vector code, so effectively the extra cycles of the sequence do not matter + // because the GPR units are idle otherwise and the critical path is on the FP side. + // Also the PMULL requires two extra fmovs: GPR->FP (3 cycles in N1, 5 cycles in A72 ) + // and FP->GPR (2 cycles on N1 and 5 cycles on A72.) + /////////// + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif +/* end file simdjson/arm64/bitmask.h */ +/* including simdjson/arm64/numberparsing_defs.h: #include "simdjson/arm64/numberparsing_defs.h" */ +/* begin file simdjson/arm64/numberparsing_defs.h */ +#ifndef SIMDJSON_ARM64_NUMBERPARSING_DEFS_H +#define SIMDJSON_ARM64_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +#if _M_ARM64 +// __umulh requires intrin.h +#include +#endif // _M_ARM64 + +namespace simdjson { +namespace arm64 { +namespace numberparsing { + +// we don't have SSE, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace arm64 +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_ARM64_NUMBERPARSING_DEFS_H +/* end file simdjson/arm64/numberparsing_defs.h */ +/* including simdjson/arm64/simd.h: #include "simdjson/arm64/simd.h" */ +/* begin file simdjson/arm64/simd.h */ +#ifndef SIMDJSON_ARM64_SIMD_H +#define SIMDJSON_ARM64_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace simd { + +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO +namespace { +// Start of private section with Visual Studio workaround + + +/** + * make_uint8x16_t initializes a SIMD register (uint8x16_t). + * This is needed because, incredibly, the syntax uint8x16_t x = {1,2,3...} + * is not recognized under Visual Studio! This is a workaround. + * Using a std::initializer_list as a parameter resulted in + * inefficient code. With the current approach, if the parameters are + * compile-time constants, + * GNU GCC compiles it to ldr, the same as uint8x16_t x = {1,2,3...}. + * You should not use this function except for compile-time constants: + * it is not efficient. + */ +simdjson_inline uint8x16_t make_uint8x16_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8, + uint8_t x9, uint8_t x10, uint8_t x11, uint8_t x12, + uint8_t x13, uint8_t x14, uint8_t x15, uint8_t x16) { + // Doing a load like so end ups generating worse code. + // uint8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_u8(array); + uint8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_u8(x1, x, 0); + x = vsetq_lane_u8(x2, x, 1); + x = vsetq_lane_u8(x3, x, 2); + x = vsetq_lane_u8(x4, x, 3); + x = vsetq_lane_u8(x5, x, 4); + x = vsetq_lane_u8(x6, x, 5); + x = vsetq_lane_u8(x7, x, 6); + x = vsetq_lane_u8(x8, x, 7); + x = vsetq_lane_u8(x9, x, 8); + x = vsetq_lane_u8(x10, x, 9); + x = vsetq_lane_u8(x11, x, 10); + x = vsetq_lane_u8(x12, x, 11); + x = vsetq_lane_u8(x13, x, 12); + x = vsetq_lane_u8(x14, x, 13); + x = vsetq_lane_u8(x15, x, 14); + x = vsetq_lane_u8(x16, x, 15); + return x; +} + +simdjson_inline uint8x8_t make_uint8x8_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8) { + uint8x8_t x{}; + x = vset_lane_u8(x1, x, 0); + x = vset_lane_u8(x2, x, 1); + x = vset_lane_u8(x3, x, 2); + x = vset_lane_u8(x4, x, 3); + x = vset_lane_u8(x5, x, 4); + x = vset_lane_u8(x6, x, 5); + x = vset_lane_u8(x7, x, 6); + x = vset_lane_u8(x8, x, 7); + return x; +} + +// We have to do the same work for make_int8x16_t +simdjson_inline int8x16_t make_int8x16_t(int8_t x1, int8_t x2, int8_t x3, int8_t x4, + int8_t x5, int8_t x6, int8_t x7, int8_t x8, + int8_t x9, int8_t x10, int8_t x11, int8_t x12, + int8_t x13, int8_t x14, int8_t x15, int8_t x16) { + // Doing a load like so end ups generating worse code. + // int8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_s8(array); + int8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_s8(x1, x, 0); + x = vsetq_lane_s8(x2, x, 1); + x = vsetq_lane_s8(x3, x, 2); + x = vsetq_lane_s8(x4, x, 3); + x = vsetq_lane_s8(x5, x, 4); + x = vsetq_lane_s8(x6, x, 5); + x = vsetq_lane_s8(x7, x, 6); + x = vsetq_lane_s8(x8, x, 7); + x = vsetq_lane_s8(x9, x, 8); + x = vsetq_lane_s8(x10, x, 9); + x = vsetq_lane_s8(x11, x, 10); + x = vsetq_lane_s8(x12, x, 11); + x = vsetq_lane_s8(x13, x, 12); + x = vsetq_lane_s8(x14, x, 13); + x = vsetq_lane_s8(x15, x, 14); + x = vsetq_lane_s8(x16, x, 15); + return x; +} + +// End of private section with Visual Studio workaround +} // namespace +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO + + + template + struct simd8; + + // + // Base class of simd8 and simd8, both of which use uint8x16_t internally. + // + template> + struct base_u8 { + uint8x16_t value; + static const int SIZE = sizeof(value); + + // Conversion from/to SIMD register + simdjson_inline base_u8(const uint8x16_t _value) : value(_value) {} + simdjson_inline operator const uint8x16_t&() const { return this->value; } + simdjson_inline operator uint8x16_t&() { return this->value; } + + // Bit operations + simdjson_inline simd8 operator|(const simd8 other) const { return vorrq_u8(*this, other); } + simdjson_inline simd8 operator&(const simd8 other) const { return vandq_u8(*this, other); } + simdjson_inline simd8 operator^(const simd8 other) const { return veorq_u8(*this, other); } + simdjson_inline simd8 bit_andnot(const simd8 other) const { return vbicq_u8(*this, other); } + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + simdjson_inline simd8& operator|=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline simd8& operator&=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline simd8& operator^=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast ^ other; return *this_cast; } + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return vceqq_u8(lhs, rhs); } + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_u8(prev_chunk, *this, 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base_u8 { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + static simdjson_inline simd8 splat(bool _value) { return vmovq_n_u8(uint8_t(-(!!_value))); } + + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // False constructor + simdjson_inline simd8() : simd8(vdupq_n_u8(0)) {} + // Splat constructor + simdjson_inline simd8(bool _value) : simd8(splat(_value)) {} + + // We return uint32_t instead of uint16_t because that seems to be more efficient for most + // purposes (cutting it down to uint16_t costs performance in some compilers). + simdjson_inline uint32_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t(0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80); +#else + const uint8x16_t bit_mask = {0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80}; +#endif + auto minput = *this & bit_mask; + uint8x16_t tmp = vpaddq_u8(minput, minput); + tmp = vpaddq_u8(tmp, tmp); + tmp = vpaddq_u8(tmp, tmp); + return vgetq_lane_u16(vreinterpretq_u16_u8(tmp), 0); + } + simdjson_inline bool any() const { return vmaxvq_u8(*this) != 0; } + }; + + // Unsigned bytes + template<> + struct simd8: base_u8 { + static simdjson_inline uint8x16_t splat(uint8_t _value) { return vmovq_n_u8(_value); } + static simdjson_inline uint8x16_t zero() { return vdupq_n_u8(0); } + static simdjson_inline uint8x16_t load(const uint8_t* values) { return vld1q_u8(values); } + + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[16]) : simd8(load(values)) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(make_uint8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(uint8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Store to array + simdjson_inline void store(uint8_t dst[16]) const { return vst1q_u8(dst, *this); } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return vqaddq_u8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return vqsubq_u8(*this, other); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_u8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_u8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + + // Order-specific operations + simdjson_inline uint8_t max_val() const { return vmaxvq_u8(*this); } + simdjson_inline uint8_t min_val() const { return vminvq_u8(*this); } + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_u8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_u8(*this, other); } + simdjson_inline simd8 operator<=(const simd8 other) const { return vcleq_u8(*this, other); } + simdjson_inline simd8 operator>=(const simd8 other) const { return vcgeq_u8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_u8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_u8(*this, other); } + // Same as >, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 gt_bits(const simd8 other) const { return simd8(*this > other); } + // Same as <, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 lt_bits(const simd8 other) const { return simd8(*this < other); } + + // Bit-specific operations + simdjson_inline simd8 any_bits_set(simd8 bits) const { return vtstq_u8(*this, bits); } + simdjson_inline bool any_bits_set_anywhere() const { return this->max_val() != 0; } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return (*this & bits).any_bits_set_anywhere(); } + template + simdjson_inline simd8 shr() const { return vshrq_n_u8(*this, N); } + template + simdjson_inline simd8 shl() const { return vshlq_n_u8(*this, N); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint16_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + uint64x2_t shufmask64 = {thintable_epi8[mask1], thintable_epi8[mask2]}; + uint8x16_t shufmask = vreinterpretq_u8_u64(shufmask64); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x16_t inc = make_uint8x16_t(0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x16_t inc = {0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + shufmask = vaddq_u8(shufmask, inc); + // this is the version "nearly pruned" + uint8x16_t pruned = vqtbl1q_u8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + uint8x16_t compactmask = vld1q_u8(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + uint8x16_t answer = vqtbl1q_u8(pruned, compactmask); + vst1q_u8(reinterpret_cast(output), answer); + } + + // Copies all bytes corresponding to a 0 in the low half of the mask (interpreted as a + // bitset) to output1, then those corresponding to a 0 in the high half to output2. + template + simdjson_inline void compress_halves(uint16_t mask, L *output1, L *output2) const { + using internal::thintable_epi8; + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + uint8x8_t compactmask1 = vcreate_u8(thintable_epi8[mask1]); + uint8x8_t compactmask2 = vcreate_u8(thintable_epi8[mask2]); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x8_t inc = make_uint8x8_t(0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x8_t inc = {0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + compactmask2 = vadd_u8(compactmask2, inc); + // store each result (with the second store possibly overlapping the first) + vst1_u8((uint8_t*)output1, vqtbl1_u8(*this, compactmask1)); + vst1_u8((uint8_t*)output2, vqtbl1_u8(*this, compactmask2)); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_u8(*this, simd8(original)); + } + }; + + // Signed bytes + template<> + struct simd8 { + int8x16_t value; + + static simdjson_inline simd8 splat(int8_t _value) { return vmovq_n_s8(_value); } + static simdjson_inline simd8 zero() { return vdupq_n_s8(0); } + static simdjson_inline simd8 load(const int8_t values[16]) { return vld1q_s8(values); } + + // Conversion from/to SIMD register + simdjson_inline simd8(const int8x16_t _value) : value{_value} {} + simdjson_inline operator const int8x16_t&() const { return this->value; } + simdjson_inline operator int8x16_t&() { return this->value; } + + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(make_int8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(int8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Store to array + simdjson_inline void store(int8_t dst[16]) const { return vst1q_s8(dst, *this); } + + // Explicit conversion to/from unsigned + // + // Under Visual Studio/ARM64 uint8x16_t and int8x16_t are apparently the same type. + // In theory, we could check this occurrence with std::same_as and std::enabled_if but it is C++14 + // and relatively ugly and hard to read. +#ifndef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline explicit simd8(const uint8x16_t other): simd8(vreinterpretq_s8_u8(other)) {} +#endif + simdjson_inline explicit operator simd8() const { return vreinterpretq_u8_s8(this->value); } + + // Math + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_s8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_s8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_s8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_s8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_s8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_s8(*this, other); } + simdjson_inline simd8 operator==(const simd8 other) const { return vceqq_s8(*this, other); } + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_s8(prev_chunk, *this, 16 - N); + } + + // Perform a lookup assuming no value is larger than 16 + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_s8(*this, simd8(original)); + } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "ARM kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } + + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint64_t popcounts = vget_lane_u64(vreinterpret_u64_u8(vcnt_u8(vcreate_u8(~mask))), 0); + // compute the prefix sum of the popcounts of each byte + uint64_t offsets = popcounts * 0x0101010101010101; + this->chunks[0].compress_halves(uint16_t(mask), output, &output[popcounts & 0xFF]); + this->chunks[1].compress_halves(uint16_t(mask >> 16), &output[(offsets >> 8) & 0xFF], &output[(offsets >> 16) & 0xFF]); + this->chunks[2].compress_halves(uint16_t(mask >> 32), &output[(offsets >> 24) & 0xFF], &output[(offsets >> 32) & 0xFF]); + this->chunks[3].compress_halves(uint16_t(mask >> 48), &output[(offsets >> 40) & 0xFF], &output[(offsets >> 48) & 0xFF]); + return offsets >> 56; + } + + simdjson_inline uint64_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t( + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + ); +#else + const uint8x16_t bit_mask = { + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + }; +#endif + // Add each of the elements next to each other, successively, to stuff each 8 byte mask into one. + uint8x16_t sum0 = vpaddq_u8(this->chunks[0] & bit_mask, this->chunks[1] & bit_mask); + uint8x16_t sum1 = vpaddq_u8(this->chunks[2] & bit_mask, this->chunks[3] & bit_mask); + sum0 = vpaddq_u8(sum0, sum1); + sum0 = vpaddq_u8(sum0, sum0); + return vgetq_lane_u64(vreinterpretq_u64_u8(sum0), 0); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_SIMD_H +/* end file simdjson/arm64/simd.h */ +/* including simdjson/arm64/stringparsing_defs.h: #include "simdjson/arm64/stringparsing_defs.h" */ +/* begin file simdjson/arm64/stringparsing_defs.h */ +#ifndef SIMDJSON_ARM64_STRINGPARSING_DEFS_H +#define SIMDJSON_ARM64_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on ARM; therefore, we + // smash them together into a 64-byte mask and get the bitmask from there. + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_STRINGPARSING_DEFS_H +/* end file simdjson/arm64/stringparsing_defs.h */ + +#define SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT 1 +/* end file simdjson/arm64/begin.h */ +/* including simdjson/generic/amalgamated.h for arm64: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for arm64 */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for arm64: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for arm64 */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { + +struct open_container; +class dom_parser_implementation; + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for arm64 */ +/* including simdjson/generic/jsoncharutils.h for arm64: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for arm64 */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for arm64 */ +/* including simdjson/generic/atomparsing.h for arm64: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace arm64 { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for arm64 */ +/* including simdjson/generic/dom_parser_implementation.h for arm64: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for arm64 */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { +namespace arm64 { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for arm64 */ +/* including simdjson/generic/implementation_simdjson_result_base.h for arm64: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for arm64 */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for arm64 */ +/* including simdjson/generic/numberparsing.h for arm64: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for arm64 */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace arm64 { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +} // namespace numberparsing + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for arm64 */ + +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for arm64: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for arm64 */ +/* end file simdjson/generic/amalgamated.h for arm64 */ +/* including simdjson/arm64/end.h: #include "simdjson/arm64/end.h" */ +/* begin file simdjson/arm64/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#undef SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT +/* undefining SIMDJSON_IMPLEMENTATION from "arm64" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/arm64/end.h */ + +#endif // SIMDJSON_ARM64_H +/* end file simdjson/arm64.h */ +/* including simdjson/arm64/implementation.h: #include */ +/* begin file simdjson/arm64/implementation.h */ +#ifndef SIMDJSON_ARM64_IMPLEMENTATION_H +#define SIMDJSON_ARM64_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation("arm64", "ARM NEON", internal::instruction_set::NEON) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_IMPLEMENTATION_H +/* end file simdjson/arm64/implementation.h */ + +/* including simdjson/arm64/begin.h: #include */ +/* begin file simdjson/arm64/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "arm64" */ +#define SIMDJSON_IMPLEMENTATION arm64 +/* including simdjson/arm64/base.h: #include "simdjson/arm64/base.h" */ +/* begin file simdjson/arm64/base.h */ +#ifndef SIMDJSON_ARM64_BASE_H +#define SIMDJSON_ARM64_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Implementation for NEON (ARMv8). + */ +namespace arm64 { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_BASE_H +/* end file simdjson/arm64/base.h */ +/* including simdjson/arm64/intrinsics.h: #include "simdjson/arm64/intrinsics.h" */ +/* begin file simdjson/arm64/intrinsics.h */ +#ifndef SIMDJSON_ARM64_INTRINSICS_H +#define SIMDJSON_ARM64_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +static_assert(sizeof(uint8x16_t) <= simdjson::SIMDJSON_PADDING, "insufficient padding for arm64"); + +#endif // SIMDJSON_ARM64_INTRINSICS_H +/* end file simdjson/arm64/intrinsics.h */ +/* including simdjson/arm64/bitmanipulation.h: #include "simdjson/arm64/bitmanipulation.h" */ +/* begin file simdjson/arm64/bitmanipulation.h */ +#ifndef SIMDJSON_ARM64_BITMANIPULATION_H +#define SIMDJSON_ARM64_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int count_ones(uint64_t input_num) { + return vaddv_u8(vcnt_u8(vcreate_u8(input_num))); +} + + +#if defined(__GNUC__) // catches clang and gcc +/** + * ARM has a fast 64-bit "bit reversal function" that is handy. However, + * it is not generally available as an intrinsic function under Visual + * Studio (though this might be changing). Even under clang/gcc, we + * apparently need to invoke inline assembly. + */ +/* + * We use SIMDJSON_PREFER_REVERSE_BITS as a hint that algorithms that + * work well with bit reversal may use it. + */ +#define SIMDJSON_PREFER_REVERSE_BITS 1 + +/* reverse the bits */ +simdjson_inline uint64_t reverse_bits(uint64_t input_num) { + uint64_t rev_bits; + __asm("rbit %0, %1" : "=r"(rev_bits) : "r"(input_num)); + return rev_bits; +} + +/** + * Flips bit at index 63 - lz. Thus if you have 'leading_zeroes' leading zeroes, + * then this will set to zero the leading bit. It is possible for leading_zeroes to be + * greating or equal to 63 in which case we trigger undefined behavior, but the output + * of such undefined behavior is never used. + **/ +SIMDJSON_NO_SANITIZE_UNDEFINED +simdjson_inline uint64_t zero_leading_bit(uint64_t rev_bits, int leading_zeroes) { + return rev_bits ^ (uint64_t(0x8000000000000000) >> leading_zeroes); +} + +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, uint64_t *result) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_BITMANIPULATION_H +/* end file simdjson/arm64/bitmanipulation.h */ +/* including simdjson/arm64/bitmask.h: #include "simdjson/arm64/bitmask.h" */ +/* begin file simdjson/arm64/bitmask.h */ +#ifndef SIMDJSON_ARM64_BITMASK_H +#define SIMDJSON_ARM64_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + ///////////// + // We could do this with PMULL, but it is apparently slow. + // + //#ifdef __ARM_FEATURE_CRYPTO // some ARM processors lack this extension + //return vmull_p64(-1ULL, bitmask); + //#else + // Analysis by @sebpop: + // When diffing the assembly for src/stage1_find_marks.cpp I see that the eors are all spread out + // in between other vector code, so effectively the extra cycles of the sequence do not matter + // because the GPR units are idle otherwise and the critical path is on the FP side. + // Also the PMULL requires two extra fmovs: GPR->FP (3 cycles in N1, 5 cycles in A72 ) + // and FP->GPR (2 cycles on N1 and 5 cycles on A72.) + /////////// + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif +/* end file simdjson/arm64/bitmask.h */ +/* including simdjson/arm64/numberparsing_defs.h: #include "simdjson/arm64/numberparsing_defs.h" */ +/* begin file simdjson/arm64/numberparsing_defs.h */ +#ifndef SIMDJSON_ARM64_NUMBERPARSING_DEFS_H +#define SIMDJSON_ARM64_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +#if _M_ARM64 +// __umulh requires intrin.h +#include +#endif // _M_ARM64 + +namespace simdjson { +namespace arm64 { +namespace numberparsing { + +// we don't have SSE, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace arm64 +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_ARM64_NUMBERPARSING_DEFS_H +/* end file simdjson/arm64/numberparsing_defs.h */ +/* including simdjson/arm64/simd.h: #include "simdjson/arm64/simd.h" */ +/* begin file simdjson/arm64/simd.h */ +#ifndef SIMDJSON_ARM64_SIMD_H +#define SIMDJSON_ARM64_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace simd { + +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO +namespace { +// Start of private section with Visual Studio workaround + + +/** + * make_uint8x16_t initializes a SIMD register (uint8x16_t). + * This is needed because, incredibly, the syntax uint8x16_t x = {1,2,3...} + * is not recognized under Visual Studio! This is a workaround. + * Using a std::initializer_list as a parameter resulted in + * inefficient code. With the current approach, if the parameters are + * compile-time constants, + * GNU GCC compiles it to ldr, the same as uint8x16_t x = {1,2,3...}. + * You should not use this function except for compile-time constants: + * it is not efficient. + */ +simdjson_inline uint8x16_t make_uint8x16_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8, + uint8_t x9, uint8_t x10, uint8_t x11, uint8_t x12, + uint8_t x13, uint8_t x14, uint8_t x15, uint8_t x16) { + // Doing a load like so end ups generating worse code. + // uint8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_u8(array); + uint8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_u8(x1, x, 0); + x = vsetq_lane_u8(x2, x, 1); + x = vsetq_lane_u8(x3, x, 2); + x = vsetq_lane_u8(x4, x, 3); + x = vsetq_lane_u8(x5, x, 4); + x = vsetq_lane_u8(x6, x, 5); + x = vsetq_lane_u8(x7, x, 6); + x = vsetq_lane_u8(x8, x, 7); + x = vsetq_lane_u8(x9, x, 8); + x = vsetq_lane_u8(x10, x, 9); + x = vsetq_lane_u8(x11, x, 10); + x = vsetq_lane_u8(x12, x, 11); + x = vsetq_lane_u8(x13, x, 12); + x = vsetq_lane_u8(x14, x, 13); + x = vsetq_lane_u8(x15, x, 14); + x = vsetq_lane_u8(x16, x, 15); + return x; +} + +simdjson_inline uint8x8_t make_uint8x8_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8) { + uint8x8_t x{}; + x = vset_lane_u8(x1, x, 0); + x = vset_lane_u8(x2, x, 1); + x = vset_lane_u8(x3, x, 2); + x = vset_lane_u8(x4, x, 3); + x = vset_lane_u8(x5, x, 4); + x = vset_lane_u8(x6, x, 5); + x = vset_lane_u8(x7, x, 6); + x = vset_lane_u8(x8, x, 7); + return x; +} + +// We have to do the same work for make_int8x16_t +simdjson_inline int8x16_t make_int8x16_t(int8_t x1, int8_t x2, int8_t x3, int8_t x4, + int8_t x5, int8_t x6, int8_t x7, int8_t x8, + int8_t x9, int8_t x10, int8_t x11, int8_t x12, + int8_t x13, int8_t x14, int8_t x15, int8_t x16) { + // Doing a load like so end ups generating worse code. + // int8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_s8(array); + int8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_s8(x1, x, 0); + x = vsetq_lane_s8(x2, x, 1); + x = vsetq_lane_s8(x3, x, 2); + x = vsetq_lane_s8(x4, x, 3); + x = vsetq_lane_s8(x5, x, 4); + x = vsetq_lane_s8(x6, x, 5); + x = vsetq_lane_s8(x7, x, 6); + x = vsetq_lane_s8(x8, x, 7); + x = vsetq_lane_s8(x9, x, 8); + x = vsetq_lane_s8(x10, x, 9); + x = vsetq_lane_s8(x11, x, 10); + x = vsetq_lane_s8(x12, x, 11); + x = vsetq_lane_s8(x13, x, 12); + x = vsetq_lane_s8(x14, x, 13); + x = vsetq_lane_s8(x15, x, 14); + x = vsetq_lane_s8(x16, x, 15); + return x; +} + +// End of private section with Visual Studio workaround +} // namespace +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO + + + template + struct simd8; + + // + // Base class of simd8 and simd8, both of which use uint8x16_t internally. + // + template> + struct base_u8 { + uint8x16_t value; + static const int SIZE = sizeof(value); + + // Conversion from/to SIMD register + simdjson_inline base_u8(const uint8x16_t _value) : value(_value) {} + simdjson_inline operator const uint8x16_t&() const { return this->value; } + simdjson_inline operator uint8x16_t&() { return this->value; } + + // Bit operations + simdjson_inline simd8 operator|(const simd8 other) const { return vorrq_u8(*this, other); } + simdjson_inline simd8 operator&(const simd8 other) const { return vandq_u8(*this, other); } + simdjson_inline simd8 operator^(const simd8 other) const { return veorq_u8(*this, other); } + simdjson_inline simd8 bit_andnot(const simd8 other) const { return vbicq_u8(*this, other); } + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + simdjson_inline simd8& operator|=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline simd8& operator&=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline simd8& operator^=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast ^ other; return *this_cast; } + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return vceqq_u8(lhs, rhs); } + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_u8(prev_chunk, *this, 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base_u8 { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + static simdjson_inline simd8 splat(bool _value) { return vmovq_n_u8(uint8_t(-(!!_value))); } + + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // False constructor + simdjson_inline simd8() : simd8(vdupq_n_u8(0)) {} + // Splat constructor + simdjson_inline simd8(bool _value) : simd8(splat(_value)) {} + + // We return uint32_t instead of uint16_t because that seems to be more efficient for most + // purposes (cutting it down to uint16_t costs performance in some compilers). + simdjson_inline uint32_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t(0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80); +#else + const uint8x16_t bit_mask = {0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80}; +#endif + auto minput = *this & bit_mask; + uint8x16_t tmp = vpaddq_u8(minput, minput); + tmp = vpaddq_u8(tmp, tmp); + tmp = vpaddq_u8(tmp, tmp); + return vgetq_lane_u16(vreinterpretq_u16_u8(tmp), 0); + } + simdjson_inline bool any() const { return vmaxvq_u8(*this) != 0; } + }; + + // Unsigned bytes + template<> + struct simd8: base_u8 { + static simdjson_inline uint8x16_t splat(uint8_t _value) { return vmovq_n_u8(_value); } + static simdjson_inline uint8x16_t zero() { return vdupq_n_u8(0); } + static simdjson_inline uint8x16_t load(const uint8_t* values) { return vld1q_u8(values); } + + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[16]) : simd8(load(values)) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(make_uint8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(uint8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Store to array + simdjson_inline void store(uint8_t dst[16]) const { return vst1q_u8(dst, *this); } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return vqaddq_u8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return vqsubq_u8(*this, other); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_u8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_u8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + + // Order-specific operations + simdjson_inline uint8_t max_val() const { return vmaxvq_u8(*this); } + simdjson_inline uint8_t min_val() const { return vminvq_u8(*this); } + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_u8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_u8(*this, other); } + simdjson_inline simd8 operator<=(const simd8 other) const { return vcleq_u8(*this, other); } + simdjson_inline simd8 operator>=(const simd8 other) const { return vcgeq_u8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_u8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_u8(*this, other); } + // Same as >, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 gt_bits(const simd8 other) const { return simd8(*this > other); } + // Same as <, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 lt_bits(const simd8 other) const { return simd8(*this < other); } + + // Bit-specific operations + simdjson_inline simd8 any_bits_set(simd8 bits) const { return vtstq_u8(*this, bits); } + simdjson_inline bool any_bits_set_anywhere() const { return this->max_val() != 0; } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return (*this & bits).any_bits_set_anywhere(); } + template + simdjson_inline simd8 shr() const { return vshrq_n_u8(*this, N); } + template + simdjson_inline simd8 shl() const { return vshlq_n_u8(*this, N); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint16_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + uint64x2_t shufmask64 = {thintable_epi8[mask1], thintable_epi8[mask2]}; + uint8x16_t shufmask = vreinterpretq_u8_u64(shufmask64); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x16_t inc = make_uint8x16_t(0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x16_t inc = {0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + shufmask = vaddq_u8(shufmask, inc); + // this is the version "nearly pruned" + uint8x16_t pruned = vqtbl1q_u8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + uint8x16_t compactmask = vld1q_u8(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + uint8x16_t answer = vqtbl1q_u8(pruned, compactmask); + vst1q_u8(reinterpret_cast(output), answer); + } + + // Copies all bytes corresponding to a 0 in the low half of the mask (interpreted as a + // bitset) to output1, then those corresponding to a 0 in the high half to output2. + template + simdjson_inline void compress_halves(uint16_t mask, L *output1, L *output2) const { + using internal::thintable_epi8; + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + uint8x8_t compactmask1 = vcreate_u8(thintable_epi8[mask1]); + uint8x8_t compactmask2 = vcreate_u8(thintable_epi8[mask2]); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x8_t inc = make_uint8x8_t(0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x8_t inc = {0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + compactmask2 = vadd_u8(compactmask2, inc); + // store each result (with the second store possibly overlapping the first) + vst1_u8((uint8_t*)output1, vqtbl1_u8(*this, compactmask1)); + vst1_u8((uint8_t*)output2, vqtbl1_u8(*this, compactmask2)); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_u8(*this, simd8(original)); + } + }; + + // Signed bytes + template<> + struct simd8 { + int8x16_t value; + + static simdjson_inline simd8 splat(int8_t _value) { return vmovq_n_s8(_value); } + static simdjson_inline simd8 zero() { return vdupq_n_s8(0); } + static simdjson_inline simd8 load(const int8_t values[16]) { return vld1q_s8(values); } + + // Conversion from/to SIMD register + simdjson_inline simd8(const int8x16_t _value) : value{_value} {} + simdjson_inline operator const int8x16_t&() const { return this->value; } + simdjson_inline operator int8x16_t&() { return this->value; } + + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(make_int8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(int8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Store to array + simdjson_inline void store(int8_t dst[16]) const { return vst1q_s8(dst, *this); } + + // Explicit conversion to/from unsigned + // + // Under Visual Studio/ARM64 uint8x16_t and int8x16_t are apparently the same type. + // In theory, we could check this occurrence with std::same_as and std::enabled_if but it is C++14 + // and relatively ugly and hard to read. +#ifndef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline explicit simd8(const uint8x16_t other): simd8(vreinterpretq_s8_u8(other)) {} +#endif + simdjson_inline explicit operator simd8() const { return vreinterpretq_u8_s8(this->value); } + + // Math + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_s8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_s8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_s8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_s8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_s8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_s8(*this, other); } + simdjson_inline simd8 operator==(const simd8 other) const { return vceqq_s8(*this, other); } + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_s8(prev_chunk, *this, 16 - N); + } + + // Perform a lookup assuming no value is larger than 16 + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_s8(*this, simd8(original)); + } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "ARM kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } + + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint64_t popcounts = vget_lane_u64(vreinterpret_u64_u8(vcnt_u8(vcreate_u8(~mask))), 0); + // compute the prefix sum of the popcounts of each byte + uint64_t offsets = popcounts * 0x0101010101010101; + this->chunks[0].compress_halves(uint16_t(mask), output, &output[popcounts & 0xFF]); + this->chunks[1].compress_halves(uint16_t(mask >> 16), &output[(offsets >> 8) & 0xFF], &output[(offsets >> 16) & 0xFF]); + this->chunks[2].compress_halves(uint16_t(mask >> 32), &output[(offsets >> 24) & 0xFF], &output[(offsets >> 32) & 0xFF]); + this->chunks[3].compress_halves(uint16_t(mask >> 48), &output[(offsets >> 40) & 0xFF], &output[(offsets >> 48) & 0xFF]); + return offsets >> 56; + } + + simdjson_inline uint64_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t( + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + ); +#else + const uint8x16_t bit_mask = { + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + }; +#endif + // Add each of the elements next to each other, successively, to stuff each 8 byte mask into one. + uint8x16_t sum0 = vpaddq_u8(this->chunks[0] & bit_mask, this->chunks[1] & bit_mask); + uint8x16_t sum1 = vpaddq_u8(this->chunks[2] & bit_mask, this->chunks[3] & bit_mask); + sum0 = vpaddq_u8(sum0, sum1); + sum0 = vpaddq_u8(sum0, sum0); + return vgetq_lane_u64(vreinterpretq_u64_u8(sum0), 0); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_SIMD_H +/* end file simdjson/arm64/simd.h */ +/* including simdjson/arm64/stringparsing_defs.h: #include "simdjson/arm64/stringparsing_defs.h" */ +/* begin file simdjson/arm64/stringparsing_defs.h */ +#ifndef SIMDJSON_ARM64_STRINGPARSING_DEFS_H +#define SIMDJSON_ARM64_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on ARM; therefore, we + // smash them together into a 64-byte mask and get the bitmask from there. + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_STRINGPARSING_DEFS_H +/* end file simdjson/arm64/stringparsing_defs.h */ + +#define SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT 1 +/* end file simdjson/arm64/begin.h */ +/* including generic/amalgamated.h for arm64: #include */ +/* begin file generic/amalgamated.h for arm64 */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_SRC_GENERIC_DEPENDENCIES_H) +#error generic/dependencies.h must be included before generic/amalgamated.h! +#endif + +/* including generic/base.h for arm64: #include */ +/* begin file generic/base.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +struct json_character_block; + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_BASE_H +/* end file generic/base.h for arm64 */ +/* including generic/dom_parser_implementation.h for arm64: #include */ +/* begin file generic/dom_parser_implementation.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// Interface a dom parser implementation must fulfill +namespace simdjson { +namespace arm64 { +namespace { + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3); +simdjson_inline bool is_ascii(const simd8x64& input); + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file generic/dom_parser_implementation.h for arm64 */ +/* including generic/json_character_block.h for arm64: #include */ +/* begin file generic/json_character_block.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); + + simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } + simdjson_inline uint64_t op() const noexcept { return _op; } + simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } + + uint64_t _whitespace; + uint64_t _op; +}; + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H +/* end file generic/json_character_block.h for arm64 */ +/* end file generic/amalgamated.h for arm64 */ +/* including generic/stage1/amalgamated.h for arm64: #include */ +/* begin file generic/stage1/amalgamated.h for arm64 */ +// Stuff other things depend on +/* including generic/stage1/base.h for arm64: #include */ +/* begin file generic/stage1/base.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +class bit_indexer; +template +struct buf_block_reader; +struct json_block; +class json_minifier; +class json_scanner; +struct json_string_block; +class json_string_scanner; +class json_structural_indexer; + +} // namespace stage1 + +namespace utf8_validation { +struct utf8_checker; +} // namespace utf8_validation + +using utf8_validation::utf8_checker; + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BASE_H +/* end file generic/stage1/base.h for arm64 */ +/* including generic/stage1/buf_block_reader.h for arm64: #include */ +/* begin file generic/stage1/buf_block_reader.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_input_text(const simd8x64& in, uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] <= ' ') { buf[i] = '_'; } + if (!(mask & (size_t(1) << i))) { buf[i] = ' '; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; + } + buf[64] = '\0'; + return buf; +} + +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } + +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; +} + +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; +} + +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; +} + +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H +/* end file generic/stage1/buf_block_reader.h for arm64 */ +/* including generic/stage1/json_escape_scanner.h for arm64: #include */ +/* begin file generic/stage1/json_escape_scanner.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +/** + * Scans for escape characters in JSON, taking care with multiple backslashes (\\n vs. \n). + */ +struct json_escape_scanner { + /** The actual escape characters (the backslashes themselves). */ + uint64_t next_is_escaped = 0ULL; + + struct escaped_and_escape { + /** + * Mask of escaped characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 0100100010100101000 + * n \ \ n \ \ + * ``` + */ + uint64_t escaped; + /** + * Mask of escape characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 1001000101001010001 + * \ \ \ \ \ \ \ + * ``` + */ + uint64_t escape; + }; + + /** + * Get a mask of both escape and escaped characters (the characters following a backslash). + * + * @param potential_escape A mask of the character that can escape others (but could be + * escaped itself). e.g. block.eq('\\') + */ + simdjson_really_inline escaped_and_escape next(uint64_t backslash) noexcept { + +#if !SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT + if (!backslash) { return {next_escaped_without_backslashes(), 0}; } +#endif + + // | | Mask (shows characters instead of 1's) | Depth | Instructions | + // |--------------------------------|----------------------------------------|-------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | | | + // | | ` even odd even odd odd` | | | + // | potential_escape | ` \ \\\ \\\ \\\\ \\\\ \\\` | 1 | 1 (backslash & ~first_is_escaped) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 5 | 5 (next_escape_and_terminal_code()) + // | escaped | `\ \ n \ n \ \ \ \ \ ` X | 6 | 7 (escape_and_terminal_code ^ (potential_escape | first_is_escaped)) + // | escape | ` \ \ \ \ \ \ \ \ \ \` | 6 | 8 (escape_and_terminal_code & backslash) + // | first_is_escaped | `\ ` | 7 (*) | 9 (escape >> 63) () + // (*) this is not needed until the next iteration + uint64_t escape_and_terminal_code = next_escape_and_terminal_code(backslash & ~this->next_is_escaped); + uint64_t escaped = escape_and_terminal_code ^ (backslash | this->next_is_escaped); + uint64_t escape = escape_and_terminal_code & backslash; + this->next_is_escaped = escape >> 63; + return {escaped, escape}; + } + +private: + static constexpr const uint64_t ODD_BITS = 0xAAAAAAAAAAAAAAAAULL; + + simdjson_really_inline uint64_t next_escaped_without_backslashes() noexcept { + uint64_t escaped = this->next_is_escaped; + this->next_is_escaped = 0; + return escaped; + } + + /** + * Returns a mask of the next escape characters (masking out escaped backslashes), along with + * any non-backslash escape codes. + * + * \n \\n \\\n \\\\n returns: + * \n \ \ \n \ \ + * 11 100 1011 10100 + * + * You are expected to mask out the first bit yourself if the previous block had a trailing + * escape. + * + * & the result with potential_escape to get just the escape characters. + * ^ the result with (potential_escape | first_is_escaped) to get escaped characters. + */ + static simdjson_really_inline uint64_t next_escape_and_terminal_code(uint64_t potential_escape) noexcept { + // If we were to just shift and mask out any odd bits, we'd actually get a *half* right answer: + // any even-aligned backslash runs would be correct! Odd-aligned backslash runs would be + // inverted (\\\ would be 010 instead of 101). + // + // ``` + // string: | ____\\\\_\\\\_____ | + // maybe_escaped | ODD | \ \ \ \ | + // even-aligned ^^^ ^^^^ odd-aligned + // ``` + // + // Taking that into account, our basic strategy is: + // + // 1. Use subtraction to produce a mask with 1's for even-aligned runs and 0's for + // odd-aligned runs. + // 2. XOR all odd bits, which masks out the odd bits in even-aligned runs, and brings IN the + // odd bits in odd-aligned runs. + // 3. & with backslash to clean up any stray bits. + // runs are set to 0, and then XORing with "odd": + // + // | | Mask (shows characters instead of 1's) | Instructions | + // |--------------------------------|----------------------------------------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | + // | | ` even odd even odd odd` | + // | maybe_escaped | ` n \\n \\n \\\_ \\\_ \\` X | 1 (potential_escape << 1) + // | maybe_escaped_and_odd | ` \n_ \\n _ \\\n_ _ \\\__ _\\\_ \\\` | 1 (maybe_escaped | odd) + // | even_series_codes_and_odd | ` n_\\\ _ n_ _\\\\ _ _ ` | 1 (maybe_escaped_and_odd - potential_escape) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 1 (^ odd) + // + + // Escaped characters are characters following an escape. + uint64_t maybe_escaped = potential_escape << 1; + + // To distinguish odd from even escape sequences, therefore, we turn on any *starting* + // escapes that are on an odd byte. (We actually bring in all odd bits, for speed.) + // - Odd runs of backslashes are 0000, and the code at the end ("n" in \n or \\n) is 1. + // - Odd runs of backslashes are 1111, and the code at the end ("n" in \n or \\n) is 0. + // - All other odd bytes are 1, and even bytes are 0. + uint64_t maybe_escaped_and_odd_bits = maybe_escaped | ODD_BITS; + uint64_t even_series_codes_and_odd_bits = maybe_escaped_and_odd_bits - potential_escape; + + // Now we flip all odd bytes back with xor. This: + // - Makes odd runs of backslashes go from 0000 to 1010 + // - Makes even runs of backslashes go from 1111 to 1010 + // - Sets actually-escaped codes to 1 (the n in \n and \\n: \n = 11, \\n = 100) + // - Resets all other bytes to 0 + return even_series_codes_and_odd_bits ^ ODD_BITS; + } +}; + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_escape_scanner.h for arm64 */ +/* including generic/stage1/json_string_scanner.h for arm64: #include */ +/* begin file generic/stage1/json_string_scanner.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_really_inline json_string_block(uint64_t escaped, uint64_t quote, uint64_t in_string) : + _escaped(escaped), _quote(quote), _in_string(in_string) {} + + // Escaped characters (characters following an escape() character) + simdjson_really_inline uint64_t escaped() const { return _escaped; } + // Real (non-backslashed) quotes + simdjson_really_inline uint64_t quote() const { return _quote; } + // Only characters inside the string (not including the quotes) + simdjson_really_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_really_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_really_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_really_inline uint64_t string_tail() const { return _in_string ^ _quote; } + + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-escaped ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; + +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_really_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_really_inline error_code finish(); + +private: + // Scans for escape characters + json_escape_scanner escape_scanner{}; + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; +}; + +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_really_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = escape_scanner.next(backslash).escaped; + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block(escaped, quote, in_string); +} + +simdjson_really_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_string_scanner.h for arm64 */ +/* including generic/stage1/utf8_lookup4_algorithm.h for arm64: #include */ +/* begin file generic/stage1/utf8_lookup4_algorithm.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace utf8_validation { + +using namespace simd; + + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, + + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } + + // + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. + // + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } + + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; + + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); + } + + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; + } + +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H +/* end file generic/stage1/utf8_lookup4_algorithm.h for arm64 */ +/* including generic/stage1/json_scanner.h for arm64: #include */ +/* begin file generic/stage1/json_scanner.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +/** + * A block of scanned json, with information on operators and scalars. + * + * We seek to identify pseudo-structural characters. Anything that is inside + * a string must be omitted (hence & ~_string.string_tail()). + * Otherwise, pseudo-structural characters come in two forms. + * 1. We have the structural characters ([,],{,},:, comma). The + * term 'structural character' is from the JSON RFC. + * 2. We have the 'scalar pseudo-structural characters'. + * Scalars are quotes, and any character except structural characters and white space. + * + * To identify the scalar pseudo-structural characters, we must look at what comes + * before them: it must be a space, a quote or a structural characters. + * Starting with simdjson v0.3, we identify them by + * negation: we identify everything that is followed by a non-quote scalar, + * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. + */ +struct json_block { +public: + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + + /** + * The start of structurals. + * In simdjson prior to v0.3, these were called the pseudo-structural characters. + **/ + simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } + /** All JSON whitespace (i.e. not in a string) */ + simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } + + // Helpers + + /** Whether the given characters are inside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } + /** Whether the given characters are outside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } + + // string and escape characters + json_string_block _string; + // whitespace, structural characters ('operators'), scalars + json_character_block _characters; + // whether the previous character was a scalar + uint64_t _follows_potential_nonquote_scalar; +private: + // Potential structurals (i.e. disregarding strings) + + /** + * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". + * They may reside inside a string. + **/ + simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } + /** + * The start of non-operator runs, like 123, true and "abc". + * It main reside inside a string. + **/ + simdjson_inline uint64_t potential_scalar_start() const noexcept { + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space + // then we know that it is irrelevant structurally. + return _characters.scalar() & ~follows_potential_scalar(); + } + /** + * Whether the given character is immediately after a non-operator like 123, true. + * The characters following a quote are not included. + */ + simdjson_inline uint64_t follows_potential_scalar() const noexcept { + // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character + // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a + // white space. + // It is understood that within quoted region, anything at all could be marked (irrelevant). + return _follows_potential_nonquote_scalar; + } +}; + +/** + * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. + * + * The scanner starts by calculating two distinct things: + * - string characters (taking \" into account) + * - structural characters or 'operators' ([]{},:, comma) + * and scalars (runs of non-operators like 123, true and "abc") + * + * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: + * in particular, the operator/scalar bit will find plenty of things that are actually part of + * strings. When we're done, json_block will fuse the two together by masking out tokens that are + * part of a string. + */ +class json_scanner { +public: + json_scanner() = default; + simdjson_inline json_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Whether the last character of the previous iteration is part of a scalar token + // (anything except whitespace or a structural character/'operator'). + uint64_t prev_scalar = 0ULL; + json_string_scanner string_scanner{}; +}; + + +// +// Check if the current character immediately follows a matching character. +// +// For example, this checks for quotes with backslashes in front of them: +// +// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); +// +simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { + const uint64_t result = match << 1 | overflow; + overflow = match >> 63; + return result; +} + +simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { + json_string_block strings = string_scanner.next(in); + // identifies the white-space and the structural characters + json_character_block characters = json_character_block::classify(in); + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // + // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) + // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential + // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we + // may need to add an extra check when parsing strings. + // + // Performance: there are many ways to skin this cat. + const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); + uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); +} + +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H +/* end file generic/stage1/json_scanner.h for arm64 */ + +// All other declarations +/* including generic/stage1/find_next_document_index.h for arm64: #include */ +/* begin file generic/stage1/find_next_document_index.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H +/* end file generic/stage1/find_next_document_index.h for arm64 */ +/* including generic/stage1/json_minifier.h for arm64: #include */ +/* begin file generic/stage1/json_minifier.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H +/* end file generic/stage1/json_minifier.h for arm64 */ +/* including generic/stage1/json_structural_indexer.h for arm64: #include */ +/* begin file generic/stage1/json_structural_indexer.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +class bit_indexer { +public: + uint32_t *tail; + + simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} + + // flatten out values in 'bits' assuming that they are are to have values of idx + // plus their position in the bitvector, and store these indexes at + // base_ptr[base] incrementing base as we go + // will potentially store extra values beyond end of valid bits, so base_ptr + // needs to be large enough to handle this + // + // If the kernel sets SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER, then it + // will provide its own version of the code. +#ifdef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + simdjson_inline void write(uint32_t idx, uint64_t bits); +#else + simdjson_inline void write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) + return; +#if SIMDJSON_PREFER_REVERSE_BITS + /** + * ARM lacks a fast trailing zero instruction, but it has a fast + * bit reversal instruction and a fast leading zero instruction. + * Thus it may be profitable to reverse the bits (once) and then + * to rely on a sequence of instructions that call the leading + * zero instruction. + * + * Performance notes: + * The chosen routine is not optimal in terms of data dependency + * since zero_leading_bit might require two instructions. However, + * it tends to minimize the total number of instructions which is + * beneficial. + */ + + uint64_t rev_bits = reverse_bits(bits); + int cnt = static_cast(count_ones(bits)); + int i = 0; + // Do the first 8 all together + for (; i<8; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + i = 8; + for (; i<16; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + i = 16; + while (rev_bits != 0) { + int lz = leading_zeroes(rev_bits); + this->tail[i++] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + } + } + this->tail += cnt; +#else // SIMDJSON_PREFER_REVERSE_BITS + /** + * Under recent x64 systems, we often have both a fast trailing zero + * instruction and a fast 'clear-lower-bit' instruction so the following + * algorithm can be competitive. + */ + + int cnt = static_cast(count_ones(bits)); + // Do the first 8 all together + for (int i=0; i<8; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + for (int i=8; i<16; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + int i = 16; + do { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + i++; + } while (i < cnt); + } + } + + this->tail += cnt; +#endif + } +#endif // SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + +}; + +class json_structural_indexer { +public: + /** + * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. + * + * @param partial Setting the partial parameter to true allows the find_structural_bits to + * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If + * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. + */ + template + static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; + +private: + simdjson_inline json_structural_indexer(uint32_t *structural_indexes); + template + simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); + simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); + + json_scanner scanner{}; + utf8_checker checker{}; + bit_indexer indexer; + uint64_t prev_structurals = 0; + uint64_t unescaped_chars_error = 0; +}; + +simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} + +// Skip the last character if it is partial +simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { + if (simdjson_unlikely(len < 3)) { + switch (len) { + case 2: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left + return len; + case 1: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + return len; + case 0: + return len; + } + } + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left + if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left + return len; +} + +// +// PERF NOTES: +// We pipe 2 inputs through these stages: +// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load +// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. +// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. +// The output of step 1 depends entirely on this information. These functions don't quite use +// up enough CPU: the second half of the functions is highly serial, only using 1 execution core +// at a time. The second input's scans has some dependency on the first ones finishing it, but +// they can make a lot of progress before they need that information. +// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that +// to finish: utf-8 checks and generating the output from the last iteration. +// +// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all +// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough +// workout. +// +template +error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { + if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } + // We guard the rest of the code so that we can assume that len > 0 throughout. + if (len == 0) { return EMPTY; } + if (is_streaming(partial)) { + len = trim_partial_utf8(buf, len); + // If you end up with an empty window after trimming + // the partial UTF-8 bytes, then chances are good that you + // have an UTF-8 formatting error. + if(len == 0) { return UTF8_ERROR; } + } + buf_block_reader reader(buf, len); + json_structural_indexer indexer(parser.structural_indexes.get()); + + // Read all but the last block + while (reader.has_full_block()) { + indexer.step(reader.full_block(), reader); + } + // Take care of the last block (will always be there unless file is empty which is + // not supposed to happen.) + uint8_t block[STEP_SIZE]; + if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } + indexer.step(block, reader); + return indexer.finish(parser, reader.block_index(), len, partial); +} + +template<> +simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block); + simd::simd8x64 in_2(block+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1, reader.block_index()); + this->next(in_2, block_2, reader.block_index()+64); + reader.advance(); +} + +template<> +simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block); + json_block block_1 = scanner.next(in_1); + this->next(in_1, block_1, reader.block_index()); + reader.advance(); +} + +simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { + uint64_t unescaped = in.lteq(0x1F); +#if SIMDJSON_UTF8VALIDATION + checker.check_next_input(in); +#endif + indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser + prev_structurals = block.structural_start(); + unescaped_chars_error |= block.non_quote_inside_string(unescaped); +} + +simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { + // Write out the final iteration's structurals + indexer.write(uint32_t(idx-64), prev_structurals); + error_code error = scanner.finish(); + // We deliberately break down the next expression so that it is + // human readable. + const bool should_we_exit = is_streaming(partial) ? + ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING + : (error != SUCCESS); // if partial is false, we must have SUCCESS + const bool have_unclosed_string = (error == UNCLOSED_STRING); + if (simdjson_unlikely(should_we_exit)) { return error; } + + if (unescaped_chars_error) { + return UNESCAPED_CHARS; + } + parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); + /*** + * The On Demand API requires special padding. + * + * This is related to https://github.com/simdjson/simdjson/issues/906 + * Basically, we want to make sure that if the parsing continues beyond the last (valid) + * structural character, it quickly stops. + * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. + * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing + * continues, then it must be [,] or }. + * Suppose it is ] or }. We backtrack to the first character, what could it be that would + * not trigger an error? It could be ] or } but no, because you can't start a document that way. + * It can't be a comma, a colon or any simple value. So the only way we could continue is + * if the repeated character is [. But if so, the document must start with [. But if the document + * starts with [, it should end with ]. If we enforce that rule, then we would get + * ][[ which is invalid. + * + * This is illustrated with the test array_iterate_unclosed_error() on the following input: + * R"({ "a": [,,)" + **/ + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final + parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); + parser.structural_indexes[parser.n_structural_indexes + 2] = 0; + parser.next_structural_index = 0; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + return EMPTY; + } + if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { + return UNEXPECTED_ERROR; + } + if (partial == stage1_mode::streaming_partial) { + // If we have an unclosed string, then the last structural + // will be the quote and we want to make sure to omit it. + if(have_unclosed_string) { + parser.n_structural_indexes--; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } + } + // We truncate the input to the end of the last complete document (or zero). + auto new_structural_indexes = find_next_document_index(parser); + if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + + parser.n_structural_indexes = new_structural_indexes; + } else if (partial == stage1_mode::streaming_final) { + if(have_unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + // We tolerate an unclosed string at the very end of the stream. Indeed, users + // often load their data in bulk without being careful and they want us to ignore + // the trailing garbage. + return EMPTY; + } + } + checker.check_eof(); + return checker.errors(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +// Clear CUSTOM_BIT_INDEXER so other implementations can set it if they need to. +#undef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H +/* end file generic/stage1/json_structural_indexer.h for arm64 */ +/* including generic/stage1/utf8_validator.h for arm64: #include */ +/* begin file generic/stage1/utf8_validator.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage1 { + +/** + * Validates that the string is actual UTF-8. + */ +template +bool generic_validate_utf8(const uint8_t * input, size_t length) { + checker c{}; + buf_block_reader<64> reader(input, length); + while (reader.has_full_block()) { + simd::simd8x64 in(reader.full_block()); + c.check_next_input(in); + reader.advance(); + } + uint8_t block[64]{}; + reader.get_remainder(block); + simd::simd8x64 in(block); + c.check_next_input(in); + reader.advance(); + c.check_eof(); + return c.errors() == error_code::SUCCESS; +} + +bool generic_validate_utf8(const char * input, size_t length) { + return generic_validate_utf8(reinterpret_cast(input),length); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H +/* end file generic/stage1/utf8_validator.h for arm64 */ +/* end file generic/stage1/amalgamated.h for arm64 */ +/* including generic/stage2/amalgamated.h for arm64: #include */ +/* begin file generic/stage2/amalgamated.h for arm64 */ +// Stuff other things depend on +/* including generic/stage2/base.h for arm64: #include */ +/* begin file generic/stage2/base.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage2 { + +class json_iterator; +class structural_iterator; +struct tape_builder; +struct tape_writer; + +} // namespace stage2 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_BASE_H +/* end file generic/stage2/base.h for arm64 */ +/* including generic/stage2/tape_writer.h for arm64: #include */ +/* begin file generic/stage2/tape_writer.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct tape_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H +/* end file generic/stage2/tape_writer.h for arm64 */ +/* including generic/stage2/logger.h for arm64: #include */ +/* begin file generic/stage2/logger.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + + +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace arm64 { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i */ +/* begin file generic/stage2/json_iterator.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage2 { + +class json_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; + uint32_t depth{0}; + + /** + * Walk the JSON document. + * + * The visitor receives callbacks when values are encountered. All callbacks pass the iterator as + * the first parameter; some callbacks have other parameters as well: + * + * - visit_document_start() - at the beginning. + * - visit_document_end() - at the end (if things were successful). + * + * - visit_array_start() - at the start `[` of a non-empty array. + * - visit_array_end() - at the end `]` of a non-empty array. + * - visit_empty_array() - when an empty array is encountered. + * + * - visit_object_end() - at the start `]` of a non-empty object. + * - visit_object_start() - at the end `]` of a non-empty object. + * - visit_empty_object() - when an empty object is encountered. + * - visit_key(const uint8_t *key) - when a key in an object field is encountered. key is + * guaranteed to point at the first quote of the string (`"key"`). + * - visit_primitive(const uint8_t *value) - when a value is a string, number, boolean or null. + * - visit_root_primitive(iter, uint8_t *value) - when the top-level value is a string, number, boolean or null. + * + * - increment_count(iter) - each time a value is found in an array or object. + */ + template + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H +/* end file generic/stage2/json_iterator.h for arm64 */ +/* including generic/stage2/stringparsing.h for arm64: #include */ +/* begin file generic/stage2/stringparsing.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace arm64 { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H +/* end file generic/stage2/stringparsing.h for arm64 */ +/* including generic/stage2/structural_iterator.h for arm64: #include */ +/* begin file generic/stage2/structural_iterator.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage2 { + +class structural_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; + + // Start a structural + simdjson_inline structural_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { + } + // Get the buffer position of the current structural character + simdjson_inline const uint8_t* current() { + return &buf[*(next_structural-1)]; + } + // Get the current structural character + simdjson_inline char current_char() { + return buf[*(next_structural-1)]; + } + // Get the next structural character without advancing + simdjson_inline char peek_next_char() { + return buf[*next_structural]; + } + simdjson_inline const uint8_t* peek() { + return &buf[*next_structural]; + } + simdjson_inline const uint8_t* advance() { + return &buf[*(next_structural++)]; + } + simdjson_inline char advance_char() { + return buf[*(next_structural++)]; + } + simdjson_inline size_t remaining_len() { + return dom_parser.len - *(next_structural-1); + } + + simdjson_inline bool at_end() { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; + } + simdjson_inline bool at_beginning() { + return next_structural == dom_parser.structural_indexes.get(); + } +}; + +} // namespace stage2 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H +/* end file generic/stage2/structural_iterator.h for arm64 */ +/* including generic/stage2/tape_builder.h for arm64: #include */ +/* begin file generic/stage2/tape_builder.h for arm64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + +namespace simdjson { +namespace arm64 { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; + + simdjson_inline tape_builder(dom::document &doc) noexcept; + + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // struct tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +// private: + +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} + +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; +} + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H +/* end file generic/stage2/tape_builder.h for arm64 */ +/* end file generic/stage2/amalgamated.h for arm64 */ + +// +// Stage 1 +// +namespace simdjson { +namespace arm64 { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + +namespace { + +using namespace simd; + +simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { + // Functional programming causes trouble with Visual Studio. + // Keeping this version in comments since it is much nicer: + // auto v = in.map([&](simd8 chunk) { + // auto nib_lo = chunk & 0xf; + // auto nib_hi = chunk.shr<4>(); + // auto shuf_lo = nib_lo.lookup_16(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0); + // auto shuf_hi = nib_hi.lookup_16(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0); + // return shuf_lo & shuf_hi; + // }); + const simd8 table1(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0); + const simd8 table2(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0); + + simd8x64 v( + (in.chunks[0] & 0xf).lookup_16(table1) & (in.chunks[0].shr<4>()).lookup_16(table2), + (in.chunks[1] & 0xf).lookup_16(table1) & (in.chunks[1].shr<4>()).lookup_16(table2), + (in.chunks[2] & 0xf).lookup_16(table1) & (in.chunks[2].shr<4>()).lookup_16(table2), + (in.chunks[3] & 0xf).lookup_16(table1) & (in.chunks[3].shr<4>()).lookup_16(table2) + ); + + + // We compute whitespace and op separately. If the code later only use one or the + // other, given the fact that all functions are aggressively inlined, we can + // hope that useless computations will be omitted. This is namely case when + // minifying (we only need whitespace). *However* if we only need spaces, + // it is likely that we will still compute 'v' above with two lookup_16: one + // could do it a bit cheaper. This is in contrast with the x64 implementations + // where we can, efficiently, do the white space and structural matching + // separately. One reason for this difference is that on ARM NEON, the table + // lookups either zero or leave unchanged the characters exceeding 0xF whereas + // on x64, the equivalent instruction (pshufb) automatically applies a mask, + // ignoring the 4 most significant bits. Thus the x64 implementation is + // optimized differently. This being said, if you use this code strictly + // just for minification (or just to identify the structural characters), + // there is a small untaken optimization opportunity here. We deliberately + // do not pick it up. + + uint64_t op = simd8x64( + v.chunks[0].any_bits_set(0x7), + v.chunks[1].any_bits_set(0x7), + v.chunks[2].any_bits_set(0x7), + v.chunks[3].any_bits_set(0x7) + ).to_bitmask(); + + uint64_t whitespace = simd8x64( + v.chunks[0].any_bits_set(0x18), + v.chunks[1].any_bits_set(0x18), + v.chunks[2].any_bits_set(0x18), + v.chunks[3].any_bits_set(0x18) + ).to_bitmask(); + + return { whitespace, op }; +} + +simdjson_inline bool is_ascii(const simd8x64& input) { + simd8 bits = input.reduce_or(); + return bits.max_val() < 0x80u; +} + +simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { + simd8 is_second_byte = prev1 >= uint8_t(0xc0u); + simd8 is_third_byte = prev2 >= uint8_t(0xe0u); + simd8 is_fourth_byte = prev3 >= uint8_t(0xf0u); + // Use ^ instead of | for is_*_byte, because ^ is commutative, and the caller is using ^ as well. + // This will work fine because we only have to report errors for cases with 0-1 lead bytes. + // Multiple lead bytes implies 2 overlapping multibyte characters, and if that happens, there is + // guaranteed to be at least *one* lead byte that is part of only 1 other multibyte character. + // The error will be detected there. + return is_second_byte ^ is_third_byte ^ is_fourth_byte; +} + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { + simd8 is_third_byte = prev2 >= uint8_t(0xe0u); + simd8 is_fourth_byte = prev3 >= uint8_t(0xf0u); + return is_third_byte ^ is_fourth_byte; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +// +// Stage 2 +// + +// +// Implementation-specific overrides +// +namespace simdjson { +namespace arm64 { + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return arm64::stage1::json_minifier::minify<64>(buf, len, dst, dst_len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return arm64::stage1::json_structural_indexer::index<64>(buf, len, *this, streaming); +} + +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return arm64::stage1::generic_validate_utf8(buf,len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept { + return arm64::stringparsing::parse_string(src, dst, allow_replacement); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return arm64::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace arm64 +} // namespace simdjson + +/* including simdjson/arm64/end.h: #include */ +/* begin file simdjson/arm64/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#undef SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT +/* undefining SIMDJSON_IMPLEMENTATION from "arm64" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/arm64/end.h */ + +#endif // SIMDJSON_SRC_ARM64_CPP +/* end file arm64.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_FALLBACK +/* including fallback.cpp: #include */ +/* begin file fallback.cpp */ +#ifndef SIMDJSON_SRC_FALLBACK_CPP +#define SIMDJSON_SRC_FALLBACK_CPP + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* including simdjson/fallback.h: #include */ +/* begin file simdjson/fallback.h */ +#ifndef SIMDJSON_FALLBACK_H +#define SIMDJSON_FALLBACK_H + +/* including simdjson/fallback/begin.h: #include "simdjson/fallback/begin.h" */ +/* begin file simdjson/fallback/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "fallback" */ +#define SIMDJSON_IMPLEMENTATION fallback +/* including simdjson/fallback/base.h: #include "simdjson/fallback/base.h" */ +/* begin file simdjson/fallback/base.h */ +#ifndef SIMDJSON_FALLBACK_BASE_H +#define SIMDJSON_FALLBACK_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Fallback implementation (runs on any machine). + */ +namespace fallback { + +class implementation; + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_BASE_H +/* end file simdjson/fallback/base.h */ +/* including simdjson/fallback/bitmanipulation.h: #include "simdjson/fallback/bitmanipulation.h" */ +/* begin file simdjson/fallback/bitmanipulation.h */ +#ifndef SIMDJSON_FALLBACK_BITMANIPULATION_H +#define SIMDJSON_FALLBACK_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { + +#if defined(_MSC_VER) && !defined(_M_ARM64) && !defined(_M_X64) +static inline unsigned char _BitScanForward64(unsigned long* ret, uint64_t x) { + unsigned long x0 = (unsigned long)x, top, bottom; + _BitScanForward(&top, (unsigned long)(x >> 32)); + _BitScanForward(&bottom, x0); + *ret = x0 ? bottom : 32 + top; + return x != 0; +} +static unsigned char _BitScanReverse64(unsigned long* ret, uint64_t x) { + unsigned long x1 = (unsigned long)(x >> 32), top, bottom; + _BitScanReverse(&top, x1); + _BitScanReverse(&bottom, (unsigned long)x); + *ret = x1 ? top + 32 : bottom; + return x != 0; +} +#endif + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef _MSC_VER + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// _MSC_VER +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_BITMANIPULATION_H +/* end file simdjson/fallback/bitmanipulation.h */ +/* including simdjson/fallback/stringparsing_defs.h: #include "simdjson/fallback/stringparsing_defs.h" */ +/* begin file simdjson/fallback/stringparsing_defs.h */ +#ifndef SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H +#define SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 1; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return c == '"'; } + simdjson_inline bool has_backslash() { return c == '\\'; } + simdjson_inline int quote_index() { return c == '"' ? 0 : 1; } + simdjson_inline int backslash_index() { return c == '\\' ? 0 : 1; } + + uint8_t c; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // store to dest unconditionally - we can overwrite the bits we don't like later + dst[0] = src[0]; + return { src[0] }; +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H +/* end file simdjson/fallback/stringparsing_defs.h */ +/* including simdjson/fallback/numberparsing_defs.h: #include "simdjson/fallback/numberparsing_defs.h" */ +/* begin file simdjson/fallback/numberparsing_defs.h */ +#ifndef SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +#define SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +#ifdef JSON_TEST_NUMBERS // for unit testing +void found_invalid_number(const uint8_t *buf); +void found_integer(int64_t result, const uint8_t *buf); +void found_unsigned_integer(uint64_t result, const uint8_t *buf); +void found_float(double result, const uint8_t *buf); +#endif + +namespace simdjson { +namespace fallback { +namespace numberparsing { + +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const char *chars) { + uint64_t val; + memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + return parse_eight_digits_unrolled(reinterpret_cast(chars)); +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace fallback +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +/* end file simdjson/fallback/numberparsing_defs.h */ +/* end file simdjson/fallback/begin.h */ +/* including simdjson/generic/amalgamated.h for fallback: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for fallback */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for fallback: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for fallback */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { + +struct open_container; +class dom_parser_implementation; + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for fallback */ +/* including simdjson/generic/jsoncharutils.h for fallback: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for fallback */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for fallback */ +/* including simdjson/generic/atomparsing.h for fallback: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for fallback */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace fallback { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for fallback */ +/* including simdjson/generic/dom_parser_implementation.h for fallback: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for fallback */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace fallback +} // namespace simdjson + +namespace simdjson { +namespace fallback { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for fallback */ +/* including simdjson/generic/implementation_simdjson_result_base.h for fallback: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for fallback */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for fallback */ +/* including simdjson/generic/numberparsing.h for fallback: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for fallback */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace fallback { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +} // namespace numberparsing + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for fallback */ + +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for fallback: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for fallback */ +/* end file simdjson/generic/amalgamated.h for fallback */ +/* including simdjson/fallback/end.h: #include "simdjson/fallback/end.h" */ +/* begin file simdjson/fallback/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* undefining SIMDJSON_IMPLEMENTATION from "fallback" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/fallback/end.h */ + +#endif // SIMDJSON_FALLBACK_H +/* end file simdjson/fallback.h */ +/* including simdjson/fallback/implementation.h: #include */ +/* begin file simdjson/fallback/implementation.h */ +#ifndef SIMDJSON_FALLBACK_IMPLEMENTATION_H +#define SIMDJSON_FALLBACK_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "fallback", + "Generic fallback implementation", + 0 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_IMPLEMENTATION_H +/* end file simdjson/fallback/implementation.h */ + +/* including simdjson/fallback/begin.h: #include */ +/* begin file simdjson/fallback/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "fallback" */ +#define SIMDJSON_IMPLEMENTATION fallback +/* including simdjson/fallback/base.h: #include "simdjson/fallback/base.h" */ +/* begin file simdjson/fallback/base.h */ +#ifndef SIMDJSON_FALLBACK_BASE_H +#define SIMDJSON_FALLBACK_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Fallback implementation (runs on any machine). + */ +namespace fallback { + +class implementation; + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_BASE_H +/* end file simdjson/fallback/base.h */ +/* including simdjson/fallback/bitmanipulation.h: #include "simdjson/fallback/bitmanipulation.h" */ +/* begin file simdjson/fallback/bitmanipulation.h */ +#ifndef SIMDJSON_FALLBACK_BITMANIPULATION_H +#define SIMDJSON_FALLBACK_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { + +#if defined(_MSC_VER) && !defined(_M_ARM64) && !defined(_M_X64) +static inline unsigned char _BitScanForward64(unsigned long* ret, uint64_t x) { + unsigned long x0 = (unsigned long)x, top, bottom; + _BitScanForward(&top, (unsigned long)(x >> 32)); + _BitScanForward(&bottom, x0); + *ret = x0 ? bottom : 32 + top; + return x != 0; +} +static unsigned char _BitScanReverse64(unsigned long* ret, uint64_t x) { + unsigned long x1 = (unsigned long)(x >> 32), top, bottom; + _BitScanReverse(&top, x1); + _BitScanReverse(&bottom, (unsigned long)x); + *ret = x1 ? top + 32 : bottom; + return x != 0; +} +#endif + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef _MSC_VER + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// _MSC_VER +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_BITMANIPULATION_H +/* end file simdjson/fallback/bitmanipulation.h */ +/* including simdjson/fallback/stringparsing_defs.h: #include "simdjson/fallback/stringparsing_defs.h" */ +/* begin file simdjson/fallback/stringparsing_defs.h */ +#ifndef SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H +#define SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 1; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return c == '"'; } + simdjson_inline bool has_backslash() { return c == '\\'; } + simdjson_inline int quote_index() { return c == '"' ? 0 : 1; } + simdjson_inline int backslash_index() { return c == '\\' ? 0 : 1; } + + uint8_t c; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // store to dest unconditionally - we can overwrite the bits we don't like later + dst[0] = src[0]; + return { src[0] }; +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H +/* end file simdjson/fallback/stringparsing_defs.h */ +/* including simdjson/fallback/numberparsing_defs.h: #include "simdjson/fallback/numberparsing_defs.h" */ +/* begin file simdjson/fallback/numberparsing_defs.h */ +#ifndef SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +#define SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +#ifdef JSON_TEST_NUMBERS // for unit testing +void found_invalid_number(const uint8_t *buf); +void found_integer(int64_t result, const uint8_t *buf); +void found_unsigned_integer(uint64_t result, const uint8_t *buf); +void found_float(double result, const uint8_t *buf); +#endif + +namespace simdjson { +namespace fallback { +namespace numberparsing { + +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const char *chars) { + uint64_t val; + memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + return parse_eight_digits_unrolled(reinterpret_cast(chars)); +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace fallback +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +/* end file simdjson/fallback/numberparsing_defs.h */ +/* end file simdjson/fallback/begin.h */ +/* including generic/stage1/find_next_document_index.h for fallback: #include */ +/* begin file generic/stage1/find_next_document_index.h for fallback */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { +namespace stage1 { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H +/* end file generic/stage1/find_next_document_index.h for fallback */ +/* including generic/stage2/stringparsing.h for fallback: #include */ +/* begin file generic/stage2/stringparsing.h for fallback */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace fallback { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H +/* end file generic/stage2/stringparsing.h for fallback */ +/* including generic/stage2/logger.h for fallback: #include */ +/* begin file generic/stage2/logger.h for fallback */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + + +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace fallback { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i */ +/* begin file generic/stage2/json_iterator.h for fallback */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { +namespace stage2 { + +class json_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; + uint32_t depth{0}; + + /** + * Walk the JSON document. + * + * The visitor receives callbacks when values are encountered. All callbacks pass the iterator as + * the first parameter; some callbacks have other parameters as well: + * + * - visit_document_start() - at the beginning. + * - visit_document_end() - at the end (if things were successful). + * + * - visit_array_start() - at the start `[` of a non-empty array. + * - visit_array_end() - at the end `]` of a non-empty array. + * - visit_empty_array() - when an empty array is encountered. + * + * - visit_object_end() - at the start `]` of a non-empty object. + * - visit_object_start() - at the end `]` of a non-empty object. + * - visit_empty_object() - when an empty object is encountered. + * - visit_key(const uint8_t *key) - when a key in an object field is encountered. key is + * guaranteed to point at the first quote of the string (`"key"`). + * - visit_primitive(const uint8_t *value) - when a value is a string, number, boolean or null. + * - visit_root_primitive(iter, uint8_t *value) - when the top-level value is a string, number, boolean or null. + * + * - increment_count(iter) - each time a value is found in an array or object. + */ + template + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H +/* end file generic/stage2/json_iterator.h for fallback */ +/* including generic/stage2/tape_writer.h for fallback: #include */ +/* begin file generic/stage2/tape_writer.h for fallback */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace fallback { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct tape_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H +/* end file generic/stage2/tape_writer.h for fallback */ +/* including generic/stage2/tape_builder.h for fallback: #include */ +/* begin file generic/stage2/tape_builder.h for fallback */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + +namespace simdjson { +namespace fallback { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; + + simdjson_inline tape_builder(dom::document &doc) noexcept; + + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // struct tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} + +// private: + +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} + +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; +} + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H +/* end file generic/stage2/tape_builder.h for fallback */ + +// +// Stage 1 +// + +namespace simdjson { +namespace fallback { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) fallback::dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + +namespace { +namespace stage1 { + +class structural_scanner { +public: + +simdjson_inline structural_scanner(dom_parser_implementation &_parser, stage1_mode _partial) + : buf{_parser.buf}, + next_structural_index{_parser.structural_indexes.get()}, + parser{_parser}, + len{static_cast(_parser.len)}, + partial{_partial} { +} + +simdjson_inline void add_structural() { + *next_structural_index = idx; + next_structural_index++; +} + +simdjson_inline bool is_continuation(uint8_t c) { + return (c & 0xc0) == 0x80; +} + +simdjson_inline void validate_utf8_character() { + // Continuation + if (simdjson_unlikely((buf[idx] & 0x40) == 0)) { + // extra continuation + error = UTF8_ERROR; + idx++; + return; + } + + // 2-byte + if ((buf[idx] & 0x20) == 0) { + // missing continuation + if (simdjson_unlikely(idx+1 > len || !is_continuation(buf[idx+1]))) { + if (idx+1 > len && is_streaming(partial)) { idx = len; return; } + error = UTF8_ERROR; + idx++; + return; + } + // overlong: 1100000_ 10______ + if (buf[idx] <= 0xc1) { error = UTF8_ERROR; } + idx += 2; + return; + } + + // 3-byte + if ((buf[idx] & 0x10) == 0) { + // missing continuation + if (simdjson_unlikely(idx+2 > len || !is_continuation(buf[idx+1]) || !is_continuation(buf[idx+2]))) { + if (idx+2 > len && is_streaming(partial)) { idx = len; return; } + error = UTF8_ERROR; + idx++; + return; + } + // overlong: 11100000 100_____ ________ + if (buf[idx] == 0xe0 && buf[idx+1] <= 0x9f) { error = UTF8_ERROR; } + // surrogates: U+D800-U+DFFF 11101101 101_____ + if (buf[idx] == 0xed && buf[idx+1] >= 0xa0) { error = UTF8_ERROR; } + idx += 3; + return; + } + + // 4-byte + // missing continuation + if (simdjson_unlikely(idx+3 > len || !is_continuation(buf[idx+1]) || !is_continuation(buf[idx+2]) || !is_continuation(buf[idx+3]))) { + if (idx+2 > len && is_streaming(partial)) { idx = len; return; } + error = UTF8_ERROR; + idx++; + return; + } + // overlong: 11110000 1000____ ________ ________ + if (buf[idx] == 0xf0 && buf[idx+1] <= 0x8f) { error = UTF8_ERROR; } + // too large: > U+10FFFF: + // 11110100 (1001|101_)____ + // 1111(1___|011_|0101) 10______ + // also includes 5, 6, 7 and 8 byte characters: + // 11111___ + if (buf[idx] == 0xf4 && buf[idx+1] >= 0x90) { error = UTF8_ERROR; } + if (buf[idx] >= 0xf5) { error = UTF8_ERROR; } + idx += 4; +} + +// Returns true if the string is unclosed. +simdjson_inline bool validate_string() { + idx++; // skip first quote + while (idx < len && buf[idx] != '"') { + if (buf[idx] == '\\') { + idx += 2; + } else if (simdjson_unlikely(buf[idx] & 0x80)) { + validate_utf8_character(); + } else { + if (buf[idx] < 0x20) { error = UNESCAPED_CHARS; } + idx++; + } + } + if (idx >= len) { return true; } + return false; +} + +simdjson_inline bool is_whitespace_or_operator(uint8_t c) { + switch (c) { + case '{': case '}': case '[': case ']': case ',': case ':': + case ' ': case '\r': case '\n': case '\t': + return true; + default: + return false; + } +} + +// +// Parse the entire input in STEP_SIZE-byte chunks. +// +simdjson_inline error_code scan() { + bool unclosed_string = false; + for (;idx 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + parser.n_structural_indexes = new_structural_indexes; + } else if(partial == stage1_mode::streaming_final) { + if(unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (parser.n_structural_indexes == 0) { return EMPTY; } + } else if(unclosed_string) { error = UNCLOSED_STRING; } + return error; +} + +private: + const uint8_t *buf; + uint32_t *next_structural_index; + dom_parser_implementation &parser; + uint32_t len; + uint32_t idx{0}; + error_code error{SUCCESS}; + stage1_mode partial; +}; // structural_scanner + +} // namespace stage1 +} // unnamed namespace + +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode partial) noexcept { + this->buf = _buf; + this->len = _len; + stage1::structural_scanner scanner(*this, partial); + return scanner.scan(); +} + +// big table for the minifier +static uint8_t jump_table[256 * 3] = { + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, + 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, + 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, + 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, +}; + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + size_t i = 0, pos = 0; + uint8_t quote = 0; + uint8_t nonescape = 1; + + while (i < len) { + unsigned char c = buf[i]; + uint8_t *meta = jump_table + 3 * c; + + quote = quote ^ (meta[0] & nonescape); + dst[pos] = c; + pos += meta[2] | quote; + + i += 1; + nonescape = uint8_t(~nonescape) | (meta[1]); + } + dst_len = pos; // we intentionally do not work with a reference + // for fear of aliasing + return quote ? UNCLOSED_STRING : SUCCESS; +} + +// credit: based on code from Google Fuchsia (Apache Licensed) +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + const uint8_t *data = reinterpret_cast(buf); + uint64_t pos = 0; + uint32_t code_point = 0; + while (pos < len) { + // check of the next 8 bytes are ascii. + uint64_t next_pos = pos + 16; + if (next_pos <= len) { // if it is safe to read 8 more bytes, check that they are ascii + uint64_t v1; + memcpy(&v1, data + pos, sizeof(uint64_t)); + uint64_t v2; + memcpy(&v2, data + pos + sizeof(uint64_t), sizeof(uint64_t)); + uint64_t v{v1 | v2}; + if ((v & 0x8080808080808080) == 0) { + pos = next_pos; + continue; + } + } + unsigned char byte = data[pos]; + if (byte < 0x80) { + pos++; + continue; + } else if ((byte & 0xe0) == 0xc0) { + next_pos = pos + 2; + if (next_pos > len) { return false; } + if ((data[pos + 1] & 0xc0) != 0x80) { return false; } + // range check + code_point = (byte & 0x1f) << 6 | (data[pos + 1] & 0x3f); + if (code_point < 0x80 || 0x7ff < code_point) { return false; } + } else if ((byte & 0xf0) == 0xe0) { + next_pos = pos + 3; + if (next_pos > len) { return false; } + if ((data[pos + 1] & 0xc0) != 0x80) { return false; } + if ((data[pos + 2] & 0xc0) != 0x80) { return false; } + // range check + code_point = (byte & 0x0f) << 12 | + (data[pos + 1] & 0x3f) << 6 | + (data[pos + 2] & 0x3f); + if (code_point < 0x800 || 0xffff < code_point || + (0xd7ff < code_point && code_point < 0xe000)) { + return false; + } + } else if ((byte & 0xf8) == 0xf0) { // 0b11110000 + next_pos = pos + 4; + if (next_pos > len) { return false; } + if ((data[pos + 1] & 0xc0) != 0x80) { return false; } + if ((data[pos + 2] & 0xc0) != 0x80) { return false; } + if ((data[pos + 3] & 0xc0) != 0x80) { return false; } + // range check + code_point = + (byte & 0x07) << 18 | (data[pos + 1] & 0x3f) << 12 | + (data[pos + 2] & 0x3f) << 6 | (data[pos + 3] & 0x3f); + if (code_point <= 0xffff || 0x10ffff < code_point) { return false; } + } else { + // we may have a continuation + return false; + } + pos = next_pos; + } + return true; +} + +} // namespace fallback +} // namespace simdjson + +// +// Stage 2 +// + +namespace simdjson { +namespace fallback { + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return fallback::stringparsing::parse_string(src, dst, replacement_char); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return fallback::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace fallback +} // namespace simdjson + +/* including simdjson/fallback/end.h: #include */ +/* begin file simdjson/fallback/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* undefining SIMDJSON_IMPLEMENTATION from "fallback" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/fallback/end.h */ + +#endif // SIMDJSON_SRC_FALLBACK_CPP +/* end file fallback.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_HASWELL +/* including haswell.cpp: #include */ +/* begin file haswell.cpp */ +#ifndef SIMDJSON_SRC_HASWELL_CPP +#define SIMDJSON_SRC_HASWELL_CPP + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* including simdjson/haswell.h: #include */ +/* begin file simdjson/haswell.h */ +#ifndef SIMDJSON_HASWELL_H +#define SIMDJSON_HASWELL_H + +/* including simdjson/haswell/begin.h: #include "simdjson/haswell/begin.h" */ +/* begin file simdjson/haswell/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "haswell" */ +#define SIMDJSON_IMPLEMENTATION haswell + +/* including simdjson/haswell/base.h: #include "simdjson/haswell/base.h" */ +/* begin file simdjson/haswell/base.h */ +#ifndef SIMDJSON_HASWELL_BASE_H +#define SIMDJSON_HASWELL_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_HASWELL +namespace simdjson { +/** + * Implementation for Haswell (Intel AVX2). + */ +namespace haswell { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BASE_H +/* end file simdjson/haswell/base.h */ +/* including simdjson/haswell/intrinsics.h: #include "simdjson/haswell/intrinsics.h" */ +/* begin file simdjson/haswell/intrinsics.h */ +#ifndef SIMDJSON_HASWELL_INTRINSICS_H +#define SIMDJSON_HASWELL_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m256i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for haswell kernel."); + +#endif // SIMDJSON_HASWELL_INTRINSICS_H +/* end file simdjson/haswell/intrinsics.h */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL +SIMDJSON_TARGET_REGION("avx2,bmi,pclmul,lzcnt,popcnt") +#endif + +/* including simdjson/haswell/bitmanipulation.h: #include "simdjson/haswell/bitmanipulation.h" */ +/* begin file simdjson/haswell/bitmanipulation.h */ +#ifndef SIMDJSON_HASWELL_BITMANIPULATION_H +#define SIMDJSON_HASWELL_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmask.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return _blsr_u64(input_num); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { + return int(_lzcnt_u64(input_num)); +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BITMANIPULATION_H +/* end file simdjson/haswell/bitmanipulation.h */ +/* including simdjson/haswell/bitmask.h: #include "simdjson/haswell/bitmask.h" */ +/* begin file simdjson/haswell/bitmask.h */ +#ifndef SIMDJSON_HASWELL_BITMASK_H +#define SIMDJSON_HASWELL_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BITMASK_H +/* end file simdjson/haswell/bitmask.h */ +/* including simdjson/haswell/numberparsing_defs.h: #include "simdjson/haswell/numberparsing_defs.h" */ +/* begin file simdjson/haswell/numberparsing_defs.h */ +#ifndef SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H +#define SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace haswell +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H +/* end file simdjson/haswell/numberparsing_defs.h */ +/* including simdjson/haswell/simd.h: #include "simdjson/haswell/simd.h" */ +/* begin file simdjson/haswell/simd.h */ +#ifndef SIMDJSON_HASWELL_SIMD_H +#define SIMDJSON_HASWELL_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace simd { + + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m256i value; + + // Zero constructor + simdjson_inline base() : value{__m256i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m256i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m256i&() const { return this->value; } + simdjson_inline operator __m256i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm256_or_si256(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm256_and_si256(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm256_xor_si256(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm256_andnot_si256(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + // Forward-declared so they can be used by splat and friends. + template + struct simd8; + + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m256i _value) : base>(_value) {} + + friend simdjson_really_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm256_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm256_alignr_epi8(*this, _mm256_permute2x128_si256(prev_chunk, *this, 0x21), 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm256_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m256i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm256_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm256_testz_si256(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm256_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm256_setzero_si256(); } + static simdjson_inline simd8 load(const T values[32]) { + return _mm256_loadu_si256(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m256i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[32]) const { return _mm256_storeu_si256(reinterpret_cast<__m256i *>(dst), *this); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm256_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm256_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm256_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint32_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in four steps, first 8 bytes and then second 8 bytes... + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // second least significant 8 bits + uint8_t mask3 = uint8_t(mask >> 16); // ... + uint8_t mask4 = uint8_t(mask >> 24); // ... + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m256i shufmask = _mm256_set_epi64x(thintable_epi8[mask4], thintable_epi8[mask3], + thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask and so forth + shufmask = + _mm256_add_epi8(shufmask, _mm256_set_epi32(0x18181818, 0x18181818, + 0x10101010, 0x10101010, 0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m256i pruned = _mm256_shuffle_epi8(*this, shufmask); + // we still need to put the pieces back together. + // we compute the popcount of the first words: + int pop1 = BitsSetTable256mul2[mask1]; + int pop3 = BitsSetTable256mul2[mask3]; + + // then load the corresponding mask + // could be done with _mm256_loadu2_m128i but many standard libraries omit this intrinsic. + __m256i v256 = _mm256_castsi128_si256( + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8))); + __m256i compactmask = _mm256_insertf128_si256(v256, + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop3 * 8)), 1); + __m256i almostthere = _mm256_shuffle_epi8(pruned, compactmask); + // We just need to write out the result. + // This is the tricky bit that is hard to do + // if we want to return a SIMD register, since there + // is no single-instruction approach to recombine + // the two 128-bit lanes with an offset. + __m128i v128; + v128 = _mm256_castsi256_si128(almostthere); + _mm_storeu_si128( reinterpret_cast<__m128i *>(output), v128); + v128 = _mm256_extractf128_si256(almostthere, 1); + _mm_storeu_si128( reinterpret_cast<__m128i *>(output + 16 - count_ones(mask & 0xFFFF)), v128); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m256i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[32]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31 + ) : simd8(_mm256_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v16,v17,v18,v19,v20,v21,v22,v23, + v24,v25,v26,v27,v28,v29,v30,v31 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm256_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm256_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm256_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm256_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m256i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[32]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31 + ) : simd8(_mm256_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v16,v17,v18,v19,v20,v21,v22,v23, + v24,v25,v26,v27,v28,v29,v30,v31 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm256_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm256_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm256_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm256_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm256_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm256_testz_si256(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm256_testz_si256(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm256_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm256_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm256_movemask_epi8(_mm256_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 2, "Haswell kernel should use two registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+32)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint32_t mask1 = uint32_t(mask); + uint32_t mask2 = uint32_t(mask >> 32); + this->chunks[0].compress(mask1, output); + this->chunks[1].compress(mask2, output + 32 - count_ones(mask1)); + return 64 - count_ones(mask); + } + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r_lo = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r_hi = this->chunks[1].to_bitmask(); + return r_lo | (r_hi << 32); + } + + simdjson_inline simd8 reduce_or() const { + return this->chunks[0] | this->chunks[1]; + } + + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask, + this->chunks[1] | mask + ); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1] + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_SIMD_H +/* end file simdjson/haswell/simd.h */ +/* including simdjson/haswell/stringparsing_defs.h: #include "simdjson/haswell/stringparsing_defs.h" */ +/* begin file simdjson/haswell/stringparsing_defs.h */ +#ifndef SIMDJSON_HASWELL_STRINGPARSING_DEFS_H +#define SIMDJSON_HASWELL_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast((v == '\\').to_bitmask()), // bs_bits + static_cast((v == '"').to_bitmask()), // quote_bits + }; +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_STRINGPARSING_DEFS_H +/* end file simdjson/haswell/stringparsing_defs.h */ +/* end file simdjson/haswell/begin.h */ +/* including simdjson/generic/amalgamated.h for haswell: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for haswell */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for haswell: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for haswell */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { + +struct open_container; +class dom_parser_implementation; + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for haswell */ +/* including simdjson/generic/jsoncharutils.h for haswell: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for haswell */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for haswell */ +/* including simdjson/generic/atomparsing.h for haswell: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for haswell */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace haswell { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for haswell */ +/* including simdjson/generic/dom_parser_implementation.h for haswell: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for haswell */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace haswell +} // namespace simdjson + +namespace simdjson { +namespace haswell { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for haswell */ +/* including simdjson/generic/implementation_simdjson_result_base.h for haswell: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for haswell */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for haswell */ +/* including simdjson/generic/numberparsing.h for haswell: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for haswell */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace haswell { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +} // namespace numberparsing + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for haswell */ + +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for haswell: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for haswell */ +/* end file simdjson/generic/amalgamated.h for haswell */ +/* including simdjson/haswell/end.h: #include "simdjson/haswell/end.h" */ +/* begin file simdjson/haswell/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "haswell" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/haswell/end.h */ + +#endif // SIMDJSON_HASWELL_H +/* end file simdjson/haswell.h */ +/* including simdjson/haswell/implementation.h: #include */ +/* begin file simdjson/haswell/implementation.h */ +#ifndef SIMDJSON_HASWELL_IMPLEMENTATION_H +#define SIMDJSON_HASWELL_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_HASWELL +namespace simdjson { +namespace haswell { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "haswell", + "Intel/AMD AVX2", + internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_IMPLEMENTATION_H +/* end file simdjson/haswell/implementation.h */ + +/* including simdjson/haswell/begin.h: #include */ +/* begin file simdjson/haswell/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "haswell" */ +#define SIMDJSON_IMPLEMENTATION haswell + +/* including simdjson/haswell/base.h: #include "simdjson/haswell/base.h" */ +/* begin file simdjson/haswell/base.h */ +#ifndef SIMDJSON_HASWELL_BASE_H +#define SIMDJSON_HASWELL_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_HASWELL +namespace simdjson { +/** + * Implementation for Haswell (Intel AVX2). + */ +namespace haswell { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BASE_H +/* end file simdjson/haswell/base.h */ +/* including simdjson/haswell/intrinsics.h: #include "simdjson/haswell/intrinsics.h" */ +/* begin file simdjson/haswell/intrinsics.h */ +#ifndef SIMDJSON_HASWELL_INTRINSICS_H +#define SIMDJSON_HASWELL_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m256i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for haswell kernel."); + +#endif // SIMDJSON_HASWELL_INTRINSICS_H +/* end file simdjson/haswell/intrinsics.h */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL +SIMDJSON_TARGET_REGION("avx2,bmi,pclmul,lzcnt,popcnt") +#endif + +/* including simdjson/haswell/bitmanipulation.h: #include "simdjson/haswell/bitmanipulation.h" */ +/* begin file simdjson/haswell/bitmanipulation.h */ +#ifndef SIMDJSON_HASWELL_BITMANIPULATION_H +#define SIMDJSON_HASWELL_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmask.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return _blsr_u64(input_num); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { + return int(_lzcnt_u64(input_num)); +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BITMANIPULATION_H +/* end file simdjson/haswell/bitmanipulation.h */ +/* including simdjson/haswell/bitmask.h: #include "simdjson/haswell/bitmask.h" */ +/* begin file simdjson/haswell/bitmask.h */ +#ifndef SIMDJSON_HASWELL_BITMASK_H +#define SIMDJSON_HASWELL_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BITMASK_H +/* end file simdjson/haswell/bitmask.h */ +/* including simdjson/haswell/numberparsing_defs.h: #include "simdjson/haswell/numberparsing_defs.h" */ +/* begin file simdjson/haswell/numberparsing_defs.h */ +#ifndef SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H +#define SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace haswell +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H +/* end file simdjson/haswell/numberparsing_defs.h */ +/* including simdjson/haswell/simd.h: #include "simdjson/haswell/simd.h" */ +/* begin file simdjson/haswell/simd.h */ +#ifndef SIMDJSON_HASWELL_SIMD_H +#define SIMDJSON_HASWELL_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace simd { + + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m256i value; + + // Zero constructor + simdjson_inline base() : value{__m256i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m256i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m256i&() const { return this->value; } + simdjson_inline operator __m256i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm256_or_si256(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm256_and_si256(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm256_xor_si256(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm256_andnot_si256(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + // Forward-declared so they can be used by splat and friends. + template + struct simd8; + + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m256i _value) : base>(_value) {} + + friend simdjson_really_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm256_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm256_alignr_epi8(*this, _mm256_permute2x128_si256(prev_chunk, *this, 0x21), 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm256_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m256i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm256_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm256_testz_si256(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm256_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm256_setzero_si256(); } + static simdjson_inline simd8 load(const T values[32]) { + return _mm256_loadu_si256(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m256i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[32]) const { return _mm256_storeu_si256(reinterpret_cast<__m256i *>(dst), *this); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm256_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm256_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm256_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint32_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in four steps, first 8 bytes and then second 8 bytes... + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // second least significant 8 bits + uint8_t mask3 = uint8_t(mask >> 16); // ... + uint8_t mask4 = uint8_t(mask >> 24); // ... + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m256i shufmask = _mm256_set_epi64x(thintable_epi8[mask4], thintable_epi8[mask3], + thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask and so forth + shufmask = + _mm256_add_epi8(shufmask, _mm256_set_epi32(0x18181818, 0x18181818, + 0x10101010, 0x10101010, 0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m256i pruned = _mm256_shuffle_epi8(*this, shufmask); + // we still need to put the pieces back together. + // we compute the popcount of the first words: + int pop1 = BitsSetTable256mul2[mask1]; + int pop3 = BitsSetTable256mul2[mask3]; + + // then load the corresponding mask + // could be done with _mm256_loadu2_m128i but many standard libraries omit this intrinsic. + __m256i v256 = _mm256_castsi128_si256( + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8))); + __m256i compactmask = _mm256_insertf128_si256(v256, + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop3 * 8)), 1); + __m256i almostthere = _mm256_shuffle_epi8(pruned, compactmask); + // We just need to write out the result. + // This is the tricky bit that is hard to do + // if we want to return a SIMD register, since there + // is no single-instruction approach to recombine + // the two 128-bit lanes with an offset. + __m128i v128; + v128 = _mm256_castsi256_si128(almostthere); + _mm_storeu_si128( reinterpret_cast<__m128i *>(output), v128); + v128 = _mm256_extractf128_si256(almostthere, 1); + _mm_storeu_si128( reinterpret_cast<__m128i *>(output + 16 - count_ones(mask & 0xFFFF)), v128); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m256i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[32]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31 + ) : simd8(_mm256_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v16,v17,v18,v19,v20,v21,v22,v23, + v24,v25,v26,v27,v28,v29,v30,v31 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm256_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm256_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm256_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm256_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m256i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[32]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31 + ) : simd8(_mm256_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v16,v17,v18,v19,v20,v21,v22,v23, + v24,v25,v26,v27,v28,v29,v30,v31 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm256_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm256_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm256_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm256_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm256_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm256_testz_si256(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm256_testz_si256(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm256_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm256_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm256_movemask_epi8(_mm256_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 2, "Haswell kernel should use two registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+32)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint32_t mask1 = uint32_t(mask); + uint32_t mask2 = uint32_t(mask >> 32); + this->chunks[0].compress(mask1, output); + this->chunks[1].compress(mask2, output + 32 - count_ones(mask1)); + return 64 - count_ones(mask); + } + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r_lo = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r_hi = this->chunks[1].to_bitmask(); + return r_lo | (r_hi << 32); + } + + simdjson_inline simd8 reduce_or() const { + return this->chunks[0] | this->chunks[1]; + } + + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask, + this->chunks[1] | mask + ); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1] + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_SIMD_H +/* end file simdjson/haswell/simd.h */ +/* including simdjson/haswell/stringparsing_defs.h: #include "simdjson/haswell/stringparsing_defs.h" */ +/* begin file simdjson/haswell/stringparsing_defs.h */ +#ifndef SIMDJSON_HASWELL_STRINGPARSING_DEFS_H +#define SIMDJSON_HASWELL_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast((v == '\\').to_bitmask()), // bs_bits + static_cast((v == '"').to_bitmask()), // quote_bits + }; +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_STRINGPARSING_DEFS_H +/* end file simdjson/haswell/stringparsing_defs.h */ +/* end file simdjson/haswell/begin.h */ +/* including generic/amalgamated.h for haswell: #include */ +/* begin file generic/amalgamated.h for haswell */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_SRC_GENERIC_DEPENDENCIES_H) +#error generic/dependencies.h must be included before generic/amalgamated.h! +#endif + +/* including generic/base.h for haswell: #include */ +/* begin file generic/base.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +struct json_character_block; + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_BASE_H +/* end file generic/base.h for haswell */ +/* including generic/dom_parser_implementation.h for haswell: #include */ +/* begin file generic/dom_parser_implementation.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// Interface a dom parser implementation must fulfill +namespace simdjson { +namespace haswell { +namespace { + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3); +simdjson_inline bool is_ascii(const simd8x64& input); + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file generic/dom_parser_implementation.h for haswell */ +/* including generic/json_character_block.h for haswell: #include */ +/* begin file generic/json_character_block.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); + + simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } + simdjson_inline uint64_t op() const noexcept { return _op; } + simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } + + uint64_t _whitespace; + uint64_t _op; +}; + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H +/* end file generic/json_character_block.h for haswell */ +/* end file generic/amalgamated.h for haswell */ +/* including generic/stage1/amalgamated.h for haswell: #include */ +/* begin file generic/stage1/amalgamated.h for haswell */ +// Stuff other things depend on +/* including generic/stage1/base.h for haswell: #include */ +/* begin file generic/stage1/base.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +class bit_indexer; +template +struct buf_block_reader; +struct json_block; +class json_minifier; +class json_scanner; +struct json_string_block; +class json_string_scanner; +class json_structural_indexer; + +} // namespace stage1 + +namespace utf8_validation { +struct utf8_checker; +} // namespace utf8_validation + +using utf8_validation::utf8_checker; + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BASE_H +/* end file generic/stage1/base.h for haswell */ +/* including generic/stage1/buf_block_reader.h for haswell: #include */ +/* begin file generic/stage1/buf_block_reader.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_input_text(const simd8x64& in, uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] <= ' ') { buf[i] = '_'; } + if (!(mask & (size_t(1) << i))) { buf[i] = ' '; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; + } + buf[64] = '\0'; + return buf; +} + +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } + +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; +} + +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; +} + +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; +} + +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H +/* end file generic/stage1/buf_block_reader.h for haswell */ +/* including generic/stage1/json_escape_scanner.h for haswell: #include */ +/* begin file generic/stage1/json_escape_scanner.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +/** + * Scans for escape characters in JSON, taking care with multiple backslashes (\\n vs. \n). + */ +struct json_escape_scanner { + /** The actual escape characters (the backslashes themselves). */ + uint64_t next_is_escaped = 0ULL; + + struct escaped_and_escape { + /** + * Mask of escaped characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 0100100010100101000 + * n \ \ n \ \ + * ``` + */ + uint64_t escaped; + /** + * Mask of escape characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 1001000101001010001 + * \ \ \ \ \ \ \ + * ``` + */ + uint64_t escape; + }; + + /** + * Get a mask of both escape and escaped characters (the characters following a backslash). + * + * @param potential_escape A mask of the character that can escape others (but could be + * escaped itself). e.g. block.eq('\\') + */ + simdjson_really_inline escaped_and_escape next(uint64_t backslash) noexcept { + +#if !SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT + if (!backslash) { return {next_escaped_without_backslashes(), 0}; } +#endif + + // | | Mask (shows characters instead of 1's) | Depth | Instructions | + // |--------------------------------|----------------------------------------|-------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | | | + // | | ` even odd even odd odd` | | | + // | potential_escape | ` \ \\\ \\\ \\\\ \\\\ \\\` | 1 | 1 (backslash & ~first_is_escaped) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 5 | 5 (next_escape_and_terminal_code()) + // | escaped | `\ \ n \ n \ \ \ \ \ ` X | 6 | 7 (escape_and_terminal_code ^ (potential_escape | first_is_escaped)) + // | escape | ` \ \ \ \ \ \ \ \ \ \` | 6 | 8 (escape_and_terminal_code & backslash) + // | first_is_escaped | `\ ` | 7 (*) | 9 (escape >> 63) () + // (*) this is not needed until the next iteration + uint64_t escape_and_terminal_code = next_escape_and_terminal_code(backslash & ~this->next_is_escaped); + uint64_t escaped = escape_and_terminal_code ^ (backslash | this->next_is_escaped); + uint64_t escape = escape_and_terminal_code & backslash; + this->next_is_escaped = escape >> 63; + return {escaped, escape}; + } + +private: + static constexpr const uint64_t ODD_BITS = 0xAAAAAAAAAAAAAAAAULL; + + simdjson_really_inline uint64_t next_escaped_without_backslashes() noexcept { + uint64_t escaped = this->next_is_escaped; + this->next_is_escaped = 0; + return escaped; + } + + /** + * Returns a mask of the next escape characters (masking out escaped backslashes), along with + * any non-backslash escape codes. + * + * \n \\n \\\n \\\\n returns: + * \n \ \ \n \ \ + * 11 100 1011 10100 + * + * You are expected to mask out the first bit yourself if the previous block had a trailing + * escape. + * + * & the result with potential_escape to get just the escape characters. + * ^ the result with (potential_escape | first_is_escaped) to get escaped characters. + */ + static simdjson_really_inline uint64_t next_escape_and_terminal_code(uint64_t potential_escape) noexcept { + // If we were to just shift and mask out any odd bits, we'd actually get a *half* right answer: + // any even-aligned backslash runs would be correct! Odd-aligned backslash runs would be + // inverted (\\\ would be 010 instead of 101). + // + // ``` + // string: | ____\\\\_\\\\_____ | + // maybe_escaped | ODD | \ \ \ \ | + // even-aligned ^^^ ^^^^ odd-aligned + // ``` + // + // Taking that into account, our basic strategy is: + // + // 1. Use subtraction to produce a mask with 1's for even-aligned runs and 0's for + // odd-aligned runs. + // 2. XOR all odd bits, which masks out the odd bits in even-aligned runs, and brings IN the + // odd bits in odd-aligned runs. + // 3. & with backslash to clean up any stray bits. + // runs are set to 0, and then XORing with "odd": + // + // | | Mask (shows characters instead of 1's) | Instructions | + // |--------------------------------|----------------------------------------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | + // | | ` even odd even odd odd` | + // | maybe_escaped | ` n \\n \\n \\\_ \\\_ \\` X | 1 (potential_escape << 1) + // | maybe_escaped_and_odd | ` \n_ \\n _ \\\n_ _ \\\__ _\\\_ \\\` | 1 (maybe_escaped | odd) + // | even_series_codes_and_odd | ` n_\\\ _ n_ _\\\\ _ _ ` | 1 (maybe_escaped_and_odd - potential_escape) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 1 (^ odd) + // + + // Escaped characters are characters following an escape. + uint64_t maybe_escaped = potential_escape << 1; + + // To distinguish odd from even escape sequences, therefore, we turn on any *starting* + // escapes that are on an odd byte. (We actually bring in all odd bits, for speed.) + // - Odd runs of backslashes are 0000, and the code at the end ("n" in \n or \\n) is 1. + // - Odd runs of backslashes are 1111, and the code at the end ("n" in \n or \\n) is 0. + // - All other odd bytes are 1, and even bytes are 0. + uint64_t maybe_escaped_and_odd_bits = maybe_escaped | ODD_BITS; + uint64_t even_series_codes_and_odd_bits = maybe_escaped_and_odd_bits - potential_escape; + + // Now we flip all odd bytes back with xor. This: + // - Makes odd runs of backslashes go from 0000 to 1010 + // - Makes even runs of backslashes go from 1111 to 1010 + // - Sets actually-escaped codes to 1 (the n in \n and \\n: \n = 11, \\n = 100) + // - Resets all other bytes to 0 + return even_series_codes_and_odd_bits ^ ODD_BITS; + } +}; + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_escape_scanner.h for haswell */ +/* including generic/stage1/json_string_scanner.h for haswell: #include */ +/* begin file generic/stage1/json_string_scanner.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_really_inline json_string_block(uint64_t escaped, uint64_t quote, uint64_t in_string) : + _escaped(escaped), _quote(quote), _in_string(in_string) {} + + // Escaped characters (characters following an escape() character) + simdjson_really_inline uint64_t escaped() const { return _escaped; } + // Real (non-backslashed) quotes + simdjson_really_inline uint64_t quote() const { return _quote; } + // Only characters inside the string (not including the quotes) + simdjson_really_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_really_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_really_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_really_inline uint64_t string_tail() const { return _in_string ^ _quote; } + + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-escaped ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; + +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_really_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_really_inline error_code finish(); + +private: + // Scans for escape characters + json_escape_scanner escape_scanner{}; + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; +}; + +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_really_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = escape_scanner.next(backslash).escaped; + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block(escaped, quote, in_string); +} + +simdjson_really_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_string_scanner.h for haswell */ +/* including generic/stage1/utf8_lookup4_algorithm.h for haswell: #include */ +/* begin file generic/stage1/utf8_lookup4_algorithm.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace utf8_validation { + +using namespace simd; + + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, + + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } + + // + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. + // + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } + + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; + + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); + } + + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; + } + +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H +/* end file generic/stage1/utf8_lookup4_algorithm.h for haswell */ +/* including generic/stage1/json_scanner.h for haswell: #include */ +/* begin file generic/stage1/json_scanner.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +/** + * A block of scanned json, with information on operators and scalars. + * + * We seek to identify pseudo-structural characters. Anything that is inside + * a string must be omitted (hence & ~_string.string_tail()). + * Otherwise, pseudo-structural characters come in two forms. + * 1. We have the structural characters ([,],{,},:, comma). The + * term 'structural character' is from the JSON RFC. + * 2. We have the 'scalar pseudo-structural characters'. + * Scalars are quotes, and any character except structural characters and white space. + * + * To identify the scalar pseudo-structural characters, we must look at what comes + * before them: it must be a space, a quote or a structural characters. + * Starting with simdjson v0.3, we identify them by + * negation: we identify everything that is followed by a non-quote scalar, + * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. + */ +struct json_block { +public: + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + + /** + * The start of structurals. + * In simdjson prior to v0.3, these were called the pseudo-structural characters. + **/ + simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } + /** All JSON whitespace (i.e. not in a string) */ + simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } + + // Helpers + + /** Whether the given characters are inside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } + /** Whether the given characters are outside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } + + // string and escape characters + json_string_block _string; + // whitespace, structural characters ('operators'), scalars + json_character_block _characters; + // whether the previous character was a scalar + uint64_t _follows_potential_nonquote_scalar; +private: + // Potential structurals (i.e. disregarding strings) + + /** + * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". + * They may reside inside a string. + **/ + simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } + /** + * The start of non-operator runs, like 123, true and "abc". + * It main reside inside a string. + **/ + simdjson_inline uint64_t potential_scalar_start() const noexcept { + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space + // then we know that it is irrelevant structurally. + return _characters.scalar() & ~follows_potential_scalar(); + } + /** + * Whether the given character is immediately after a non-operator like 123, true. + * The characters following a quote are not included. + */ + simdjson_inline uint64_t follows_potential_scalar() const noexcept { + // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character + // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a + // white space. + // It is understood that within quoted region, anything at all could be marked (irrelevant). + return _follows_potential_nonquote_scalar; + } +}; + +/** + * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. + * + * The scanner starts by calculating two distinct things: + * - string characters (taking \" into account) + * - structural characters or 'operators' ([]{},:, comma) + * and scalars (runs of non-operators like 123, true and "abc") + * + * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: + * in particular, the operator/scalar bit will find plenty of things that are actually part of + * strings. When we're done, json_block will fuse the two together by masking out tokens that are + * part of a string. + */ +class json_scanner { +public: + json_scanner() = default; + simdjson_inline json_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Whether the last character of the previous iteration is part of a scalar token + // (anything except whitespace or a structural character/'operator'). + uint64_t prev_scalar = 0ULL; + json_string_scanner string_scanner{}; +}; + + +// +// Check if the current character immediately follows a matching character. +// +// For example, this checks for quotes with backslashes in front of them: +// +// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); +// +simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { + const uint64_t result = match << 1 | overflow; + overflow = match >> 63; + return result; +} + +simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { + json_string_block strings = string_scanner.next(in); + // identifies the white-space and the structural characters + json_character_block characters = json_character_block::classify(in); + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // + // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) + // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential + // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we + // may need to add an extra check when parsing strings. + // + // Performance: there are many ways to skin this cat. + const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); + uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); +} + +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H +/* end file generic/stage1/json_scanner.h for haswell */ + +// All other declarations +/* including generic/stage1/find_next_document_index.h for haswell: #include */ +/* begin file generic/stage1/find_next_document_index.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': + continue; + } + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; + } + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H +/* end file generic/stage1/find_next_document_index.h for haswell */ +/* including generic/stage1/json_minifier.h for haswell: #include */ +/* begin file generic/stage1/json_minifier.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H +/* end file generic/stage1/json_minifier.h for haswell */ +/* including generic/stage1/json_structural_indexer.h for haswell: #include */ +/* begin file generic/stage1/json_structural_indexer.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +class bit_indexer { +public: + uint32_t *tail; + + simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} + + // flatten out values in 'bits' assuming that they are are to have values of idx + // plus their position in the bitvector, and store these indexes at + // base_ptr[base] incrementing base as we go + // will potentially store extra values beyond end of valid bits, so base_ptr + // needs to be large enough to handle this + // + // If the kernel sets SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER, then it + // will provide its own version of the code. +#ifdef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + simdjson_inline void write(uint32_t idx, uint64_t bits); +#else + simdjson_inline void write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) + return; +#if SIMDJSON_PREFER_REVERSE_BITS + /** + * ARM lacks a fast trailing zero instruction, but it has a fast + * bit reversal instruction and a fast leading zero instruction. + * Thus it may be profitable to reverse the bits (once) and then + * to rely on a sequence of instructions that call the leading + * zero instruction. + * + * Performance notes: + * The chosen routine is not optimal in terms of data dependency + * since zero_leading_bit might require two instructions. However, + * it tends to minimize the total number of instructions which is + * beneficial. + */ + + uint64_t rev_bits = reverse_bits(bits); + int cnt = static_cast(count_ones(bits)); + int i = 0; + // Do the first 8 all together + for (; i<8; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + i = 8; + for (; i<16; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + i = 16; + while (rev_bits != 0) { + int lz = leading_zeroes(rev_bits); + this->tail[i++] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + } + } + this->tail += cnt; +#else // SIMDJSON_PREFER_REVERSE_BITS + /** + * Under recent x64 systems, we often have both a fast trailing zero + * instruction and a fast 'clear-lower-bit' instruction so the following + * algorithm can be competitive. + */ + + int cnt = static_cast(count_ones(bits)); + // Do the first 8 all together + for (int i=0; i<8; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + for (int i=8; i<16; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + int i = 16; + do { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + i++; + } while (i < cnt); + } + } + + this->tail += cnt; +#endif + } +#endif // SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + +}; + +class json_structural_indexer { +public: + /** + * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. + * + * @param partial Setting the partial parameter to true allows the find_structural_bits to + * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If + * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. + */ + template + static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; + +private: + simdjson_inline json_structural_indexer(uint32_t *structural_indexes); + template + simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); + simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); + + json_scanner scanner{}; + utf8_checker checker{}; + bit_indexer indexer; + uint64_t prev_structurals = 0; + uint64_t unescaped_chars_error = 0; +}; + +simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} + +// Skip the last character if it is partial +simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { + if (simdjson_unlikely(len < 3)) { + switch (len) { + case 2: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left + return len; + case 1: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + return len; + case 0: + return len; + } + } + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left + if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left + return len; +} + +// +// PERF NOTES: +// We pipe 2 inputs through these stages: +// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load +// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. +// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. +// The output of step 1 depends entirely on this information. These functions don't quite use +// up enough CPU: the second half of the functions is highly serial, only using 1 execution core +// at a time. The second input's scans has some dependency on the first ones finishing it, but +// they can make a lot of progress before they need that information. +// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that +// to finish: utf-8 checks and generating the output from the last iteration. +// +// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all +// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough +// workout. +// +template +error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { + if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } + // We guard the rest of the code so that we can assume that len > 0 throughout. + if (len == 0) { return EMPTY; } + if (is_streaming(partial)) { + len = trim_partial_utf8(buf, len); + // If you end up with an empty window after trimming + // the partial UTF-8 bytes, then chances are good that you + // have an UTF-8 formatting error. + if(len == 0) { return UTF8_ERROR; } + } + buf_block_reader reader(buf, len); + json_structural_indexer indexer(parser.structural_indexes.get()); + + // Read all but the last block + while (reader.has_full_block()) { + indexer.step(reader.full_block(), reader); + } + // Take care of the last block (will always be there unless file is empty which is + // not supposed to happen.) + uint8_t block[STEP_SIZE]; + if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } + indexer.step(block, reader); + return indexer.finish(parser, reader.block_index(), len, partial); +} + +template<> +simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block); + simd::simd8x64 in_2(block+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1, reader.block_index()); + this->next(in_2, block_2, reader.block_index()+64); + reader.advance(); +} + +template<> +simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block); + json_block block_1 = scanner.next(in_1); + this->next(in_1, block_1, reader.block_index()); + reader.advance(); +} + +simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { + uint64_t unescaped = in.lteq(0x1F); +#if SIMDJSON_UTF8VALIDATION + checker.check_next_input(in); +#endif + indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser + prev_structurals = block.structural_start(); + unescaped_chars_error |= block.non_quote_inside_string(unescaped); +} + +simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { + // Write out the final iteration's structurals + indexer.write(uint32_t(idx-64), prev_structurals); + error_code error = scanner.finish(); + // We deliberately break down the next expression so that it is + // human readable. + const bool should_we_exit = is_streaming(partial) ? + ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING + : (error != SUCCESS); // if partial is false, we must have SUCCESS + const bool have_unclosed_string = (error == UNCLOSED_STRING); + if (simdjson_unlikely(should_we_exit)) { return error; } + + if (unescaped_chars_error) { + return UNESCAPED_CHARS; + } + parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); + /*** + * The On Demand API requires special padding. + * + * This is related to https://github.com/simdjson/simdjson/issues/906 + * Basically, we want to make sure that if the parsing continues beyond the last (valid) + * structural character, it quickly stops. + * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. + * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing + * continues, then it must be [,] or }. + * Suppose it is ] or }. We backtrack to the first character, what could it be that would + * not trigger an error? It could be ] or } but no, because you can't start a document that way. + * It can't be a comma, a colon or any simple value. So the only way we could continue is + * if the repeated character is [. But if so, the document must start with [. But if the document + * starts with [, it should end with ]. If we enforce that rule, then we would get + * ][[ which is invalid. + * + * This is illustrated with the test array_iterate_unclosed_error() on the following input: + * R"({ "a": [,,)" + **/ + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final + parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); + parser.structural_indexes[parser.n_structural_indexes + 2] = 0; + parser.next_structural_index = 0; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + return EMPTY; + } + if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { + return UNEXPECTED_ERROR; + } + if (partial == stage1_mode::streaming_partial) { + // If we have an unclosed string, then the last structural + // will be the quote and we want to make sure to omit it. + if(have_unclosed_string) { + parser.n_structural_indexes--; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } + } + // We truncate the input to the end of the last complete document (or zero). + auto new_structural_indexes = find_next_document_index(parser); + if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } + + parser.n_structural_indexes = new_structural_indexes; + } else if (partial == stage1_mode::streaming_final) { + if(have_unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + // We tolerate an unclosed string at the very end of the stream. Indeed, users + // often load their data in bulk without being careful and they want us to ignore + // the trailing garbage. + return EMPTY; + } + } + checker.check_eof(); + return checker.errors(); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +// Clear CUSTOM_BIT_INDEXER so other implementations can set it if they need to. +#undef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H +/* end file generic/stage1/json_structural_indexer.h for haswell */ +/* including generic/stage1/utf8_validator.h for haswell: #include */ +/* begin file generic/stage1/utf8_validator.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage1 { + +/** + * Validates that the string is actual UTF-8. + */ +template +bool generic_validate_utf8(const uint8_t * input, size_t length) { + checker c{}; + buf_block_reader<64> reader(input, length); + while (reader.has_full_block()) { + simd::simd8x64 in(reader.full_block()); + c.check_next_input(in); + reader.advance(); + } + uint8_t block[64]{}; + reader.get_remainder(block); + simd::simd8x64 in(block); + c.check_next_input(in); + reader.advance(); + c.check_eof(); + return c.errors() == error_code::SUCCESS; +} + +bool generic_validate_utf8(const char * input, size_t length) { + return generic_validate_utf8(reinterpret_cast(input),length); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H +/* end file generic/stage1/utf8_validator.h for haswell */ +/* end file generic/stage1/amalgamated.h for haswell */ +/* including generic/stage2/amalgamated.h for haswell: #include */ +/* begin file generic/stage2/amalgamated.h for haswell */ +// Stuff other things depend on +/* including generic/stage2/base.h for haswell: #include */ +/* begin file generic/stage2/base.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage2 { + +class json_iterator; +class structural_iterator; +struct tape_builder; +struct tape_writer; + +} // namespace stage2 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_BASE_H +/* end file generic/stage2/base.h for haswell */ +/* including generic/stage2/tape_writer.h for haswell: #include */ +/* begin file generic/stage2/tape_writer.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace haswell { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; + + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct tape_writer + +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} + +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} + +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; +} + +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H +/* end file generic/stage2/tape_writer.h for haswell */ +/* including generic/stage2/logger.h for haswell: #include */ +/* begin file generic/stage2/logger.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + + +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace haswell { +namespace { +namespace logger { + + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; + + static int log_depth; // Not threadsafe. Log only. + + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } + + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } + + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } + + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;i */ +/* begin file generic/stage2/json_iterator.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage2 { + +class json_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; + uint32_t depth{0}; + + /** + * Walk the JSON document. + * + * The visitor receives callbacks when values are encountered. All callbacks pass the iterator as + * the first parameter; some callbacks have other parameters as well: + * + * - visit_document_start() - at the beginning. + * - visit_document_end() - at the end (if things were successful). + * + * - visit_array_start() - at the start `[` of a non-empty array. + * - visit_array_end() - at the end `]` of a non-empty array. + * - visit_empty_array() - when an empty array is encountered. + * + * - visit_object_end() - at the start `]` of a non-empty object. + * - visit_object_start() - at the end `]` of a non-empty object. + * - visit_empty_object() - when an empty object is encountered. + * - visit_key(const uint8_t *key) - when a key in an object field is encountered. key is + * guaranteed to point at the first quote of the string (`"key"`). + * - visit_primitive(const uint8_t *value) - when a value is a string, number, boolean or null. + * - visit_root_primitive(iter, uint8_t *value) - when the top-level value is a string, number, boolean or null. + * + * - increment_count(iter) - each time a value is found in an array or object. + */ + template + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); + + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); + + // + // Read first value + // + { + auto value = advance(); + + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } + + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; + +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); + + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } + +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; + +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); + +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } + +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } + +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); + + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } + + return SUCCESS; + +} // walk_document() + +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} + +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} + +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} + +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} + +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} + +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); +} + +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); +} + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } +} +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } +} + +} // namespace stage2 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H +/* end file generic/stage2/json_iterator.h for haswell */ +/* including generic/stage2/stringparsing.h for haswell: #include */ +/* begin file generic/stage2/stringparsing.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace haswell { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H +/* end file generic/stage2/stringparsing.h for haswell */ +/* including generic/stage2/structural_iterator.h for haswell: #include */ +/* begin file generic/stage2/structural_iterator.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace stage2 { + +class structural_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; + + // Start a structural + simdjson_inline structural_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { + } + // Get the buffer position of the current structural character + simdjson_inline const uint8_t* current() { + return &buf[*(next_structural-1)]; + } + // Get the current structural character + simdjson_inline char current_char() { + return buf[*(next_structural-1)]; + } + // Get the next structural character without advancing + simdjson_inline char peek_next_char() { + return buf[*next_structural]; + } + simdjson_inline const uint8_t* peek() { + return &buf[*next_structural]; + } + simdjson_inline const uint8_t* advance() { + return &buf[*(next_structural++)]; + } + simdjson_inline char advance_char() { + return buf[*(next_structural++)]; + } + simdjson_inline size_t remaining_len() { + return dom_parser.len - *(next_structural-1); + } + + simdjson_inline bool at_end() { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; + } + simdjson_inline bool at_beginning() { + return next_structural == dom_parser.structural_indexes.get(); + } +}; + +} // namespace stage2 +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H +/* end file generic/stage2/structural_iterator.h for haswell */ +/* including generic/stage2/tape_builder.h for haswell: #include */ +/* begin file generic/stage2/tape_builder.h for haswell */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + +namespace simdjson { +namespace haswell { +namespace { +namespace stage2 { + +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; -#include + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; -namespace simdjson { // table modified and copied from -namespace internal { // http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetTable -SIMDJSON_DLLIMPORTEXPORT const unsigned char BitsSetTable256mul2[256] = { - 0, 2, 2, 4, 2, 4, 4, 6, 2, 4, 4, 6, 4, 6, 6, 8, 2, 4, 4, - 6, 4, 6, 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 2, 4, 4, 6, 4, 6, - 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, 6, - 8, 8, 10, 8, 10, 10, 12, 2, 4, 4, 6, 4, 6, 6, 8, 4, 6, 6, 8, - 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, - 12, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, 12, 6, 8, - 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 2, 4, 4, 6, 4, - 6, 6, 8, 4, 6, 6, 8, 6, 8, 8, 10, 4, 6, 6, 8, 6, 8, 8, 10, - 6, 8, 8, 10, 8, 10, 10, 12, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, - 10, 8, 10, 10, 12, 6, 8, 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, - 12, 14, 4, 6, 6, 8, 6, 8, 8, 10, 6, 8, 8, 10, 8, 10, 10, 12, 6, - 8, 8, 10, 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 6, 8, 8, 10, - 8, 10, 10, 12, 8, 10, 10, 12, 10, 12, 12, 14, 8, 10, 10, 12, 10, 12, 12, - 14, 10, 12, 12, 14, 12, 14, 14, 16}; + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; -SIMDJSON_DLLIMPORTEXPORT const uint8_t pshufb_combine_table[272] = { - 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, - 0x0c, 0x0d, 0x0e, 0x0f, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x08, - 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0x00, 0x01, 0x02, 0x03, - 0x04, 0x05, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, - 0x00, 0x01, 0x02, 0x03, 0x04, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, - 0x0f, 0xff, 0xff, 0xff, 0x00, 0x01, 0x02, 0x03, 0x08, 0x09, 0x0a, 0x0b, - 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0x00, 0x01, 0x02, 0x08, - 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, - 0x00, 0x01, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0x00, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, - 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x08, 0x09, 0x0a, 0x0b, - 0x0c, 0x0d, 0x0e, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, -}; + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; + /** + * Called when a key in a field is encountered. + * + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. + */ + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; -// 256 * 8 bytes = 2kB, easily fits in cache. -SIMDJSON_DLLIMPORTEXPORT const uint64_t thintable_epi8[256] = { - 0x0706050403020100, 0x0007060504030201, 0x0007060504030200, - 0x0000070605040302, 0x0007060504030100, 0x0000070605040301, - 0x0000070605040300, 0x0000000706050403, 0x0007060504020100, - 0x0000070605040201, 0x0000070605040200, 0x0000000706050402, - 0x0000070605040100, 0x0000000706050401, 0x0000000706050400, - 0x0000000007060504, 0x0007060503020100, 0x0000070605030201, - 0x0000070605030200, 0x0000000706050302, 0x0000070605030100, - 0x0000000706050301, 0x0000000706050300, 0x0000000007060503, - 0x0000070605020100, 0x0000000706050201, 0x0000000706050200, - 0x0000000007060502, 0x0000000706050100, 0x0000000007060501, - 0x0000000007060500, 0x0000000000070605, 0x0007060403020100, - 0x0000070604030201, 0x0000070604030200, 0x0000000706040302, - 0x0000070604030100, 0x0000000706040301, 0x0000000706040300, - 0x0000000007060403, 0x0000070604020100, 0x0000000706040201, - 0x0000000706040200, 0x0000000007060402, 0x0000000706040100, - 0x0000000007060401, 0x0000000007060400, 0x0000000000070604, - 0x0000070603020100, 0x0000000706030201, 0x0000000706030200, - 0x0000000007060302, 0x0000000706030100, 0x0000000007060301, - 0x0000000007060300, 0x0000000000070603, 0x0000000706020100, - 0x0000000007060201, 0x0000000007060200, 0x0000000000070602, - 0x0000000007060100, 0x0000000000070601, 0x0000000000070600, - 0x0000000000000706, 0x0007050403020100, 0x0000070504030201, - 0x0000070504030200, 0x0000000705040302, 0x0000070504030100, - 0x0000000705040301, 0x0000000705040300, 0x0000000007050403, - 0x0000070504020100, 0x0000000705040201, 0x0000000705040200, - 0x0000000007050402, 0x0000000705040100, 0x0000000007050401, - 0x0000000007050400, 0x0000000000070504, 0x0000070503020100, - 0x0000000705030201, 0x0000000705030200, 0x0000000007050302, - 0x0000000705030100, 0x0000000007050301, 0x0000000007050300, - 0x0000000000070503, 0x0000000705020100, 0x0000000007050201, - 0x0000000007050200, 0x0000000000070502, 0x0000000007050100, - 0x0000000000070501, 0x0000000000070500, 0x0000000000000705, - 0x0000070403020100, 0x0000000704030201, 0x0000000704030200, - 0x0000000007040302, 0x0000000704030100, 0x0000000007040301, - 0x0000000007040300, 0x0000000000070403, 0x0000000704020100, - 0x0000000007040201, 0x0000000007040200, 0x0000000000070402, - 0x0000000007040100, 0x0000000000070401, 0x0000000000070400, - 0x0000000000000704, 0x0000000703020100, 0x0000000007030201, - 0x0000000007030200, 0x0000000000070302, 0x0000000007030100, - 0x0000000000070301, 0x0000000000070300, 0x0000000000000703, - 0x0000000007020100, 0x0000000000070201, 0x0000000000070200, - 0x0000000000000702, 0x0000000000070100, 0x0000000000000701, - 0x0000000000000700, 0x0000000000000007, 0x0006050403020100, - 0x0000060504030201, 0x0000060504030200, 0x0000000605040302, - 0x0000060504030100, 0x0000000605040301, 0x0000000605040300, - 0x0000000006050403, 0x0000060504020100, 0x0000000605040201, - 0x0000000605040200, 0x0000000006050402, 0x0000000605040100, - 0x0000000006050401, 0x0000000006050400, 0x0000000000060504, - 0x0000060503020100, 0x0000000605030201, 0x0000000605030200, - 0x0000000006050302, 0x0000000605030100, 0x0000000006050301, - 0x0000000006050300, 0x0000000000060503, 0x0000000605020100, - 0x0000000006050201, 0x0000000006050200, 0x0000000000060502, - 0x0000000006050100, 0x0000000000060501, 0x0000000000060500, - 0x0000000000000605, 0x0000060403020100, 0x0000000604030201, - 0x0000000604030200, 0x0000000006040302, 0x0000000604030100, - 0x0000000006040301, 0x0000000006040300, 0x0000000000060403, - 0x0000000604020100, 0x0000000006040201, 0x0000000006040200, - 0x0000000000060402, 0x0000000006040100, 0x0000000000060401, - 0x0000000000060400, 0x0000000000000604, 0x0000000603020100, - 0x0000000006030201, 0x0000000006030200, 0x0000000000060302, - 0x0000000006030100, 0x0000000000060301, 0x0000000000060300, - 0x0000000000000603, 0x0000000006020100, 0x0000000000060201, - 0x0000000000060200, 0x0000000000000602, 0x0000000000060100, - 0x0000000000000601, 0x0000000000000600, 0x0000000000000006, - 0x0000050403020100, 0x0000000504030201, 0x0000000504030200, - 0x0000000005040302, 0x0000000504030100, 0x0000000005040301, - 0x0000000005040300, 0x0000000000050403, 0x0000000504020100, - 0x0000000005040201, 0x0000000005040200, 0x0000000000050402, - 0x0000000005040100, 0x0000000000050401, 0x0000000000050400, - 0x0000000000000504, 0x0000000503020100, 0x0000000005030201, - 0x0000000005030200, 0x0000000000050302, 0x0000000005030100, - 0x0000000000050301, 0x0000000000050300, 0x0000000000000503, - 0x0000000005020100, 0x0000000000050201, 0x0000000000050200, - 0x0000000000000502, 0x0000000000050100, 0x0000000000000501, - 0x0000000000000500, 0x0000000000000005, 0x0000000403020100, - 0x0000000004030201, 0x0000000004030200, 0x0000000000040302, - 0x0000000004030100, 0x0000000000040301, 0x0000000000040300, - 0x0000000000000403, 0x0000000004020100, 0x0000000000040201, - 0x0000000000040200, 0x0000000000000402, 0x0000000000040100, - 0x0000000000000401, 0x0000000000000400, 0x0000000000000004, - 0x0000000003020100, 0x0000000000030201, 0x0000000000030200, - 0x0000000000000302, 0x0000000000030100, 0x0000000000000301, - 0x0000000000000300, 0x0000000000000003, 0x0000000000020100, - 0x0000000000000201, 0x0000000000000200, 0x0000000000000002, - 0x0000000000000100, 0x0000000000000001, 0x0000000000000000, - 0x0000000000000000, -}; //static uint64_t thintable_epi8[256] + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; -} // namespace internal -} // namespace simdjson + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; -#endif // SIMDJSON_IMPLEMENTATION_ARM64 || SIMDJSON_IMPLEMENTATION_ICELAKE || SIMDJSON_IMPLEMENTATION_HASWELL || SIMDJSON_IMPLEMENTATION_WESTMERE || SIMDJSON_IMPLEMENTATION_PPC64 -/* end file src/internal/simdprune_tables.cpp */ -/* begin file src/implementation.cpp */ -#include + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; -namespace simdjson { + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; -bool implementation::supported_by_runtime_system() const { - uint32_t required_instruction_sets = this->required_instruction_sets(); - uint32_t supported_instruction_sets = internal::detect_supported_architectures(); - return ((supported_instruction_sets & required_instruction_sets) == required_instruction_sets); -} + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; -namespace internal { + simdjson_inline tape_builder(dom::document &doc) noexcept; -// Static array of known implementations. We're hoping these get baked into the executable -// without requiring a static initializer. + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // struct tape_builder -#if SIMDJSON_IMPLEMENTATION_ICELAKE -static const icelake::implementation* get_icelake_singleton() { - static const icelake::implementation icelake_singleton{}; - return &icelake_singleton; +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); } -#endif -#if SIMDJSON_IMPLEMENTATION_HASWELL -static const haswell::implementation* get_haswell_singleton() { - static const haswell::implementation haswell_singleton{}; - return &haswell_singleton; + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); } -#endif -#if SIMDJSON_IMPLEMENTATION_WESTMERE -static const westmere::implementation* get_westmere_singleton() { - static const westmere::implementation westmere_singleton{}; - return &westmere_singleton; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); } -#endif // SIMDJSON_IMPLEMENTATION_WESTMERE -#if SIMDJSON_IMPLEMENTATION_ARM64 -static const arm64::implementation* get_arm64_singleton() { - static const arm64::implementation arm64_singleton{}; - return &arm64_singleton; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); } -#endif // SIMDJSON_IMPLEMENTATION_ARM64 -#if SIMDJSON_IMPLEMENTATION_PPC64 -static const ppc64::implementation* get_ppc64_singleton() { - static const ppc64::implementation ppc64_singleton{}; - return &ppc64_singleton; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); } -#endif // SIMDJSON_IMPLEMENTATION_PPC64 -#if SIMDJSON_IMPLEMENTATION_FALLBACK -static const fallback::implementation* get_fallback_singleton() { - static const fallback::implementation fallback_singleton{}; - return &fallback_singleton; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); } -#endif // SIMDJSON_IMPLEMENTATION_FALLBACK -/** - * @private Detects best supported implementation on first use, and sets it - */ -class detect_best_supported_implementation_on_first_use final : public implementation { -public: - const std::string &name() const noexcept final { return set_best()->name(); } - const std::string &description() const noexcept final { return set_best()->description(); } - uint32_t required_instruction_sets() const noexcept final { return set_best()->required_instruction_sets(); } - simdjson_warn_unused error_code create_dom_parser_implementation( - size_t capacity, - size_t max_length, - std::unique_ptr& dst - ) const noexcept final { - return set_best()->create_dom_parser_implementation(capacity, max_length, dst); - } - simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final { - return set_best()->minify(buf, len, dst, dst_len); - } - simdjson_warn_unused bool validate_utf8(const char * buf, size_t len) const noexcept final override { - return set_best()->validate_utf8(buf, len); +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} + +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; } - simdjson_inline detect_best_supported_implementation_on_first_use() noexcept : implementation("best_supported_detector", "Detects the best supported implementation and sets it", 0) {} -private: - const implementation *set_best() const noexcept; -}; + on_end_string(dst); + return SUCCESS; +} -static const std::initializer_list& get_available_implementation_pointers() { - static const std::initializer_list available_implementation_pointers { -#if SIMDJSON_IMPLEMENTATION_ICELAKE - get_icelake_singleton(), -#endif -#if SIMDJSON_IMPLEMENTATION_HASWELL - get_haswell_singleton(), -#endif -#if SIMDJSON_IMPLEMENTATION_WESTMERE - get_westmere_singleton(), -#endif -#if SIMDJSON_IMPLEMENTATION_ARM64 - get_arm64_singleton(), -#endif -#if SIMDJSON_IMPLEMENTATION_PPC64 - get_ppc64_singleton(), -#endif -#if SIMDJSON_IMPLEMENTATION_FALLBACK - get_fallback_singleton(), -#endif - }; // available_implementation_pointers - return available_implementation_pointers; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); } -// So we can return UNSUPPORTED_ARCHITECTURE from the parser when there is no support -class unsupported_implementation final : public implementation { -public: - simdjson_warn_unused error_code create_dom_parser_implementation( - size_t, - size_t, - std::unique_ptr& - ) const noexcept final { - return UNSUPPORTED_ARCHITECTURE; - } - simdjson_warn_unused error_code minify(const uint8_t *, size_t, uint8_t *, size_t &) const noexcept final override { - return UNSUPPORTED_ARCHITECTURE; - } - simdjson_warn_unused bool validate_utf8(const char *, size_t) const noexcept final override { - return false; // Just refuse to validate. Given that we have a fallback implementation - // it seems unlikely that unsupported_implementation will ever be used. If it is used, - // then it will flag all strings as invalid. The alternative is to return an error_code - // from which the user has to figure out whether the string is valid UTF-8... which seems - // like a lot of work just to handle the very unlikely case that we have an unsupported - // implementation. And, when it does happen (that we have an unsupported implementation), - // what are the chances that the programmer has a fallback? Given that *we* provide the - // fallback, it implies that the programmer would need a fallback for our fallback. - } - unsupported_implementation() : implementation("unsupported", "Unsupported CPU (no detected SIMD instructions)", 0) {} -}; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} -const unsupported_implementation* get_unsupported_singleton() { - static const unsupported_implementation unsupported_singleton{}; - return &unsupported_singleton; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; } -size_t available_implementation_list::size() const noexcept { - return internal::get_available_implementation_pointers().size(); +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; } -const implementation * const *available_implementation_list::begin() const noexcept { - return internal::get_available_implementation_pointers().begin(); + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; } -const implementation * const *available_implementation_list::end() const noexcept { - return internal::get_available_implementation_pointers().end(); + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; } -const implementation *available_implementation_list::detect_best_supported() const noexcept { - // They are prelisted in priority order, so we just go down the list - uint32_t supported_instruction_sets = internal::detect_supported_architectures(); - for (const implementation *impl : internal::get_available_implementation_pointers()) { - uint32_t required_instruction_sets = impl->required_instruction_sets(); - if ((supported_instruction_sets & required_instruction_sets) == required_instruction_sets) { return impl; } - } - return get_unsupported_singleton(); // this should never happen? + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; } -const implementation *detect_best_supported_implementation_on_first_use::set_best() const noexcept { - SIMDJSON_PUSH_DISABLE_WARNINGS - SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe - char *force_implementation_name = getenv("SIMDJSON_FORCE_IMPLEMENTATION"); - SIMDJSON_POP_DISABLE_WARNINGS +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} - if (force_implementation_name) { - auto force_implementation = get_available_implementations()[force_implementation_name]; - if (force_implementation) { - return get_active_implementation() = force_implementation; - } else { - // Note: abort() and stderr usage within the library is forbidden. - return get_active_implementation() = get_unsupported_singleton(); - } - } - return get_active_implementation() = get_available_implementations().detect_best_supported(); +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; } -} // namespace internal +// private: -SIMDJSON_DLLIMPORTEXPORT const internal::available_implementation_list& get_available_implementations() { - static const internal::available_implementation_list available_implementations{}; - return available_implementations; +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); } -SIMDJSON_DLLIMPORTEXPORT internal::atomic_ptr& get_active_implementation() { - static const internal::detect_best_supported_implementation_on_first_use detect_best_supported_implementation_on_first_use_singleton; - static internal::atomic_ptr active_implementation{&detect_best_supported_implementation_on_first_use_singleton}; - return active_implementation; +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; } -simdjson_warn_unused error_code minify(const char *buf, size_t len, char *dst, size_t &dst_len) noexcept { - return get_active_implementation()->minify(reinterpret_cast(buf), len, reinterpret_cast(dst), dst_len); +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. } -simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) noexcept { - return get_active_implementation()->validate_utf8(buf, len); + +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); + return SUCCESS; } -const implementation * builtin_implementation() { - static const implementation * builtin_impl = get_available_implementations()[SIMDJSON_STRINGIFY(SIMDJSON_BUILTIN_IMPLEMENTATION)]; - assert(builtin_impl); - return builtin_impl; + +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; } - +} // namespace stage2 +} // unnamed namespace +} // namespace haswell } // namespace simdjson -/* end file src/implementation.cpp */ -#if SIMDJSON_IMPLEMENTATION_ARM64 -/* begin file src/arm64/implementation.cpp */ -/* begin file include/simdjson/arm64/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "arm64" -// #define SIMDJSON_IMPLEMENTATION arm64 -/* end file include/simdjson/arm64/begin.h */ +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H +/* end file generic/stage2/tape_builder.h for haswell */ +/* end file generic/stage2/amalgamated.h for haswell */ + +// +// Stage 1 +// namespace simdjson { -namespace arm64 { +namespace haswell { simdjson_warn_unused error_code implementation::create_dom_parser_implementation( size_t capacity, @@ -2826,3549 +23730,5011 @@ simdjson_warn_unused error_code implementation::create_dom_parser_implementation return SUCCESS; } -} // namespace arm64 -} // namespace simdjson - -/* begin file include/simdjson/arm64/end.h */ -/* end file include/simdjson/arm64/end.h */ -/* end file src/arm64/implementation.cpp */ -/* begin file src/arm64/dom_parser_implementation.cpp */ -/* begin file include/simdjson/arm64/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "arm64" -// #define SIMDJSON_IMPLEMENTATION arm64 -/* end file include/simdjson/arm64/begin.h */ - -// -// Stage 1 -// -namespace simdjson { -namespace arm64 { namespace { using namespace simd; -struct json_character_block { - static simdjson_inline json_character_block classify(const simd::simd8x64& in); - - simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } - simdjson_inline uint64_t op() const noexcept { return _op; } - simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } - - uint64_t _whitespace; - uint64_t _op; -}; - +// This identifies structural characters (comma, colon, braces, brackets), +// and ASCII white-space ('\r','\n','\t',' '). simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { - // Functional programming causes trouble with Visual Studio. - // Keeping this version in comments since it is much nicer: - // auto v = in.map([&](simd8 chunk) { - // auto nib_lo = chunk & 0xf; - // auto nib_hi = chunk.shr<4>(); - // auto shuf_lo = nib_lo.lookup_16(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0); - // auto shuf_hi = nib_hi.lookup_16(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0); - // return shuf_lo & shuf_hi; - // }); - const simd8 table1(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0); - const simd8 table2(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0); + // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why + // we can't use the generic lookup_16. + const auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); - simd8x64 v( - (in.chunks[0] & 0xf).lookup_16(table1) & (in.chunks[0].shr<4>()).lookup_16(table2), - (in.chunks[1] & 0xf).lookup_16(table1) & (in.chunks[1].shr<4>()).lookup_16(table2), - (in.chunks[2] & 0xf).lookup_16(table1) & (in.chunks[2].shr<4>()).lookup_16(table2), - (in.chunks[3] & 0xf).lookup_16(table1) & (in.chunks[3].shr<4>()).lookup_16(table2) + // The 6 operators (:,[]{}) have these values: + // + // , 2C + // : 3A + // [ 5B + // { 7B + // ] 5D + // } 7D + // + // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. + // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then + // match it (against | 0x20). + // + // To prevent recognizing other characters, everything else gets compared with 0, which cannot + // match due to the | 0x20. + // + // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , + // and :. This gets caught in stage 2, which checks the actual character to ensure the right + // operators are in the right places. + const auto op_table = simd8::repeat_16( + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B + ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D ); - - // We compute whitespace and op separately. If the code later only use one or the + // We compute whitespace and op separately. If later code only uses one or the // other, given the fact that all functions are aggressively inlined, we can // hope that useless computations will be omitted. This is namely case when - // minifying (we only need whitespace). *However* if we only need spaces, - // it is likely that we will still compute 'v' above with two lookup_16: one - // could do it a bit cheaper. This is in contrast with the x64 implementations - // where we can, efficiently, do the white space and structural matching - // separately. One reason for this difference is that on ARM NEON, the table - // lookups either zero or leave unchanged the characters exceeding 0xF whereas - // on x64, the equivalent instruction (pshufb) automatically applies a mask, - // ignoring the 4 most significant bits. Thus the x64 implementation is - // optimized differently. This being said, if you use this code strictly - // just for minification (or just to identify the structural characters), - // there is a small untaken optimization opportunity here. We deliberately - // do not pick it up. - - uint64_t op = simd8x64( - v.chunks[0].any_bits_set(0x7), - v.chunks[1].any_bits_set(0x7), - v.chunks[2].any_bits_set(0x7), - v.chunks[3].any_bits_set(0x7) - ).to_bitmask(); + // minifying (we only need whitespace). - uint64_t whitespace = simd8x64( - v.chunks[0].any_bits_set(0x18), - v.chunks[1].any_bits_set(0x18), - v.chunks[2].any_bits_set(0x18), - v.chunks[3].any_bits_set(0x18) - ).to_bitmask(); + const uint64_t whitespace = in.eq({ + _mm256_shuffle_epi8(whitespace_table, in.chunks[0]), + _mm256_shuffle_epi8(whitespace_table, in.chunks[1]) + }); + // Turn [ and ] into { and } + const simd8x64 curlified{ + in.chunks[0] | 0x20, + in.chunks[1] | 0x20 + }; + const uint64_t op = curlified.eq({ + _mm256_shuffle_epi8(op_table, in.chunks[0]), + _mm256_shuffle_epi8(op_table, in.chunks[1]) + }); return { whitespace, op }; } simdjson_inline bool is_ascii(const simd8x64& input) { - simd8 bits = input.reduce_or(); - return bits.max_val() < 0x80u; + return input.reduce_or().is_ascii(); } simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { - simd8 is_second_byte = prev1 >= uint8_t(0xc0u); - simd8 is_third_byte = prev2 >= uint8_t(0xe0u); - simd8 is_fourth_byte = prev3 >= uint8_t(0xf0u); - // Use ^ instead of | for is_*_byte, because ^ is commutative, and the caller is using ^ as well. - // This will work fine because we only have to report errors for cases with 0-1 lead bytes. - // Multiple lead bytes implies 2 overlapping multibyte characters, and if that happens, there is - // guaranteed to be at least *one* lead byte that is part of only 1 other multibyte character. - // The error will be detected there. - return is_second_byte ^ is_third_byte ^ is_fourth_byte; + simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); } simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { - simd8 is_third_byte = prev2 >= uint8_t(0xe0u); - simd8 is_fourth_byte = prev3 >= uint8_t(0xf0u); - return is_third_byte ^ is_fourth_byte; + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_third_byte | is_fourth_byte) > int8_t(0); } } // unnamed namespace -} // namespace arm64 +} // namespace haswell } // namespace simdjson -/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +// +// Stage 2 +// + +// +// Implementation-specific overrides +// namespace simdjson { -namespace arm64 { -namespace { -namespace utf8_validation { +namespace haswell { -using namespace simd; +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return haswell::stage1::json_minifier::minify<128>(buf, len, dst, dst_len); +} - simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { -// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) -// Bit 1 = Too Long (ASCII followed by continuation) -// Bit 2 = Overlong 3-byte -// Bit 4 = Surrogate -// Bit 5 = Overlong 2-byte -// Bit 7 = Two Continuations - constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ - // 11______ 11______ - constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ - constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ - constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ - constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ - constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ - constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ - // 11110100 101_____ - // 11110101 1001____ - // 11110101 101_____ - // 1111011_ 1001____ - // 1111011_ 101_____ - // 11111___ 1001____ - // 11111___ 101_____ - constexpr const uint8_t TOO_LARGE_1000 = 1<<6; - // 11110101 1000____ - // 1111011_ 1000____ - // 11111___ 1000____ - constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return haswell::stage1::json_structural_indexer::index<128>(_buf, _len, *this, streaming); +} - const simd8 byte_1_high = prev1.shr<4>().lookup_16( - // 0_______ ________ - TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, - TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, - // 10______ ________ - TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, - // 1100____ ________ - TOO_SHORT | OVERLONG_2, - // 1101____ ________ - TOO_SHORT, - // 1110____ ________ - TOO_SHORT | OVERLONG_3 | SURROGATE, - // 1111____ ________ - TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 - ); - constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . - const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( - // ____0000 ________ - CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, - // ____0001 ________ - CARRY | OVERLONG_2, - // ____001_ ________ - CARRY, - CARRY, +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return haswell::stage1::generic_validate_utf8(buf,len); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return haswell::stringparsing::parse_string(src, dst, replacement_char); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return haswell::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace haswell +} // namespace simdjson + +/* including simdjson/haswell/end.h: #include */ +/* begin file simdjson/haswell/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "haswell" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/haswell/end.h */ + +#endif // SIMDJSON_SRC_HASWELL_CPP +/* end file haswell.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_ICELAKE +/* including icelake.cpp: #include */ +/* begin file icelake.cpp */ +#ifndef SIMDJSON_SRC_ICELAKE_CPP +#define SIMDJSON_SRC_ICELAKE_CPP + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* including simdjson/icelake.h: #include */ +/* begin file simdjson/icelake.h */ +#ifndef SIMDJSON_ICELAKE_H +#define SIMDJSON_ICELAKE_H + +/* including simdjson/icelake/begin.h: #include "simdjson/icelake/begin.h" */ +/* begin file simdjson/icelake/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "icelake" */ +#define SIMDJSON_IMPLEMENTATION icelake +/* including simdjson/icelake/base.h: #include "simdjson/icelake/base.h" */ +/* begin file simdjson/icelake/base.h */ +#ifndef SIMDJSON_ICELAKE_BASE_H +#define SIMDJSON_ICELAKE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE +namespace simdjson { +/** + * Implementation for Icelake (Intel AVX512). + */ +namespace icelake { - // ____0100 ________ - CARRY | TOO_LARGE, - // ____0101 ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - // ____011_ ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, +class implementation; - // ____1___ ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - // ____1101 ________ - CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000 - ); - const simd8 byte_2_high = input.shr<4>().lookup_16( - // ________ 0_______ - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, +} // namespace icelake +} // namespace simdjson - // ________ 1000____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, - // ________ 1001____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, - // ________ 101_____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, - TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, +#endif // SIMDJSON_ICELAKE_BASE_H +/* end file simdjson/icelake/base.h */ +/* including simdjson/icelake/intrinsics.h: #include "simdjson/icelake/intrinsics.h" */ +/* begin file simdjson/icelake/intrinsics.h */ +#ifndef SIMDJSON_ICELAKE_INTRINSICS_H +#define SIMDJSON_ICELAKE_INTRINSICS_H - // ________ 11______ - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT - ); - return (byte_1_high & byte_1_low & byte_2_high); - } - simdjson_inline simd8 check_multibyte_lengths(const simd8 input, - const simd8 prev_input, const simd8 sc) { - simd8 prev2 = input.prev<2>(prev_input); - simd8 prev3 = input.prev<3>(prev_input); - simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); - simd8 must23_80 = must23 & uint8_t(0x80); - return must23_80 ^ sc; - } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // - // Return nonzero if there are incomplete multibyte characters at the end of the block: - // e.g. if there is a 4-byte character, but it's 3 bytes from the end. - // - simdjson_inline simd8 is_incomplete(const simd8 input) { - // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): - // ... 1111____ 111_____ 11______ -#if SIMDJSON_IMPLEMENTATION_ICELAKE - static const uint8_t max_array[64] = { - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 - }; +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang #else - static const uint8_t max_array[32] = { - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 - }; +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// Important: we need the AVX-512 headers: +#include +#include +#include +#include +#include +#include +#include +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m512i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for icelake"); + +#endif // SIMDJSON_ICELAKE_INTRINSICS_H +/* end file simdjson/icelake/intrinsics.h */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +SIMDJSON_TARGET_REGION("avx512f,avx512dq,avx512cd,avx512bw,avx512vbmi,avx512vbmi2,avx512vl,avx2,bmi,pclmul,lzcnt,popcnt") #endif - const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); - return input.gt_bits(max_value); - } - struct utf8_checker { - // If this is nonzero, there has been a UTF-8 error. - simd8 error; - // The last input we received - simd8 prev_input_block; - // Whether the last input we received was incomplete (used for ASCII fast path) - simd8 prev_incomplete; +/* including simdjson/icelake/bitmanipulation.h: #include "simdjson/icelake/bitmanipulation.h" */ +/* begin file simdjson/icelake/bitmanipulation.h */ +#ifndef SIMDJSON_ICELAKE_BITMANIPULATION_H +#define SIMDJSON_ICELAKE_BITMANIPULATION_H - // - // Check whether the current bytes are valid UTF-8. - // - simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { - // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes - // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) - simd8 prev1 = input.prev<1>(prev_input); - simd8 sc = check_special_cases(input, prev1); - this->error |= check_multibyte_lengths(input, prev_input, sc); - } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // The only problem that can happen at EOF is that a multibyte character is too short - // or a byte value too large in the last bytes: check_special_cases only checks for bytes - // too large in the first of two bytes. - simdjson_inline void check_eof() { - // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't - // possibly finish them. - this->error |= this->prev_incomplete; - } +namespace simdjson { +namespace icelake { +namespace { -#ifndef SIMDJSON_IF_CONSTEXPR -#if SIMDJSON_CPLUSPLUS17 -#define SIMDJSON_IF_CONSTEXPR if constexpr +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return _blsr_u64(input_num); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { + return int(_lzcnt_u64(input_num)); +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows + return __popcnt64(input_num);// Visual Studio wants two underscores +} #else -#define SIMDJSON_IF_CONSTEXPR if +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} #endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); #endif +} - simdjson_inline void check_next_input(const simd8x64& input) { - if(simdjson_likely(is_ascii(input))) { - this->error |= this->prev_incomplete; - } else { - // you might think that a for-loop would work, but under Visual Studio, it is not good enough. - static_assert((simd8x64::NUM_CHUNKS == 1) - ||(simd8x64::NUM_CHUNKS == 2) - || (simd8x64::NUM_CHUNKS == 4), - "We support one, two or four chunks per 64-byte block."); - SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - this->check_utf8_bytes(input.chunks[2], input.chunks[1]); - this->check_utf8_bytes(input.chunks[3], input.chunks[2]); - } - this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); - this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; - } - } - // do not forget to call check_eof! - simdjson_inline error_code errors() { - return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; - } +} // unnamed namespace +} // namespace icelake +} // namespace simdjson - }; // struct utf8_checker -} // namespace utf8_validation +#endif // SIMDJSON_ICELAKE_BITMANIPULATION_H +/* end file simdjson/icelake/bitmanipulation.h */ +/* including simdjson/icelake/bitmask.h: #include "simdjson/icelake/bitmask.h" */ +/* begin file simdjson/icelake/bitmask.h */ +#ifndef SIMDJSON_ICELAKE_BITMASK_H +#define SIMDJSON_ICELAKE_BITMASK_H -using utf8_validation::utf8_checker; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} } // unnamed namespace -} // namespace arm64 +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ -/* begin file src/generic/stage1/json_structural_indexer.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) -/* begin file src/generic/stage1/buf_block_reader.h */ +#endif // SIMDJSON_ICELAKE_BITMASK_H +/* end file simdjson/icelake/bitmask.h */ +/* including simdjson/icelake/simd.h: #include "simdjson/icelake/simd.h" */ +/* begin file simdjson/icelake/simd.h */ +#ifndef SIMDJSON_ICELAKE_SIMD_H +#define SIMDJSON_ICELAKE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if defined(__GNUC__) && !defined(__clang__) +#if __GNUC__ == 8 +#define SIMDJSON_GCC8 1 +#endif // __GNUC__ == 8 +#endif // defined(__GNUC__) && !defined(__clang__) + +#if SIMDJSON_GCC8 +/** + * GCC 8 fails to provide _mm512_set_epi8. We roll our own. + */ +inline __m512i _mm512_set_epi8(uint8_t a0, uint8_t a1, uint8_t a2, uint8_t a3, uint8_t a4, uint8_t a5, uint8_t a6, uint8_t a7, uint8_t a8, uint8_t a9, uint8_t a10, uint8_t a11, uint8_t a12, uint8_t a13, uint8_t a14, uint8_t a15, uint8_t a16, uint8_t a17, uint8_t a18, uint8_t a19, uint8_t a20, uint8_t a21, uint8_t a22, uint8_t a23, uint8_t a24, uint8_t a25, uint8_t a26, uint8_t a27, uint8_t a28, uint8_t a29, uint8_t a30, uint8_t a31, uint8_t a32, uint8_t a33, uint8_t a34, uint8_t a35, uint8_t a36, uint8_t a37, uint8_t a38, uint8_t a39, uint8_t a40, uint8_t a41, uint8_t a42, uint8_t a43, uint8_t a44, uint8_t a45, uint8_t a46, uint8_t a47, uint8_t a48, uint8_t a49, uint8_t a50, uint8_t a51, uint8_t a52, uint8_t a53, uint8_t a54, uint8_t a55, uint8_t a56, uint8_t a57, uint8_t a58, uint8_t a59, uint8_t a60, uint8_t a61, uint8_t a62, uint8_t a63) { + return _mm512_set_epi64(uint64_t(a7) + (uint64_t(a6) << 8) + (uint64_t(a5) << 16) + (uint64_t(a4) << 24) + (uint64_t(a3) << 32) + (uint64_t(a2) << 40) + (uint64_t(a1) << 48) + (uint64_t(a0) << 56), + uint64_t(a15) + (uint64_t(a14) << 8) + (uint64_t(a13) << 16) + (uint64_t(a12) << 24) + (uint64_t(a11) << 32) + (uint64_t(a10) << 40) + (uint64_t(a9) << 48) + (uint64_t(a8) << 56), + uint64_t(a23) + (uint64_t(a22) << 8) + (uint64_t(a21) << 16) + (uint64_t(a20) << 24) + (uint64_t(a19) << 32) + (uint64_t(a18) << 40) + (uint64_t(a17) << 48) + (uint64_t(a16) << 56), + uint64_t(a31) + (uint64_t(a30) << 8) + (uint64_t(a29) << 16) + (uint64_t(a28) << 24) + (uint64_t(a27) << 32) + (uint64_t(a26) << 40) + (uint64_t(a25) << 48) + (uint64_t(a24) << 56), + uint64_t(a39) + (uint64_t(a38) << 8) + (uint64_t(a37) << 16) + (uint64_t(a36) << 24) + (uint64_t(a35) << 32) + (uint64_t(a34) << 40) + (uint64_t(a33) << 48) + (uint64_t(a32) << 56), + uint64_t(a47) + (uint64_t(a46) << 8) + (uint64_t(a45) << 16) + (uint64_t(a44) << 24) + (uint64_t(a43) << 32) + (uint64_t(a42) << 40) + (uint64_t(a41) << 48) + (uint64_t(a40) << 56), + uint64_t(a55) + (uint64_t(a54) << 8) + (uint64_t(a53) << 16) + (uint64_t(a52) << 24) + (uint64_t(a51) << 32) + (uint64_t(a50) << 40) + (uint64_t(a49) << 48) + (uint64_t(a48) << 56), + uint64_t(a63) + (uint64_t(a62) << 8) + (uint64_t(a61) << 16) + (uint64_t(a60) << 24) + (uint64_t(a59) << 32) + (uint64_t(a58) << 40) + (uint64_t(a57) << 48) + (uint64_t(a56) << 56)); +} +#endif // SIMDJSON_GCC8 + + + namespace simdjson { -namespace arm64 { +namespace icelake { namespace { +namespace simd { + + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m512i value; + + // Zero constructor + simdjson_inline base() : value{__m512i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m512i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m512i&() const { return this->value; } + simdjson_inline operator __m512i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm512_or_si512(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm512_and_si512(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm512_xor_si512(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm512_andnot_si512(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; -// Walks through a buffer in block-sized increments, loading the last part with spaces -template -struct buf_block_reader { -public: - simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); - simdjson_inline size_t block_index(); - simdjson_inline bool has_full_block() const; - simdjson_inline const uint8_t *full_block() const; - /** - * Get the last block, padded with spaces. - * - * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this - * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there - * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. - * - * @return the number of effective characters in the last block. - */ - simdjson_inline size_t get_remainder(uint8_t *dst) const; - simdjson_inline void advance(); -private: - const uint8_t *buf; - const size_t len; - const size_t lenminusstep; - size_t idx; -}; + // Forward-declared so they can be used by splat and friends. + template + struct simd8; -// Routines to print masks and text for debugging bitmask operations -simdjson_unused static char * format_input_text_64(const uint8_t *text) { - static char buf[sizeof(simd8x64) + 1]; - for (size_t i=0; i); i++) { - buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); - } - buf[sizeof(simd8x64)] = '\0'; - return buf; -} + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; -// Routines to print masks and text for debugging bitmask operations -simdjson_unused static char * format_input_text(const simd8x64& in) { - static char buf[sizeof(simd8x64) + 1]; - in.store(reinterpret_cast(buf)); - for (size_t i=0; i); i++) { - if (buf[i] < ' ') { buf[i] = '_'; } - } - buf[sizeof(simd8x64)] = '\0'; - return buf; -} + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m512i _value) : base>(_value) {} + + friend simdjson_really_inline uint64_t operator==(const simd8 lhs, const simd8 rhs) { + return _mm512_cmpeq_epi8_mask(lhs, rhs); + } + + static const int SIZE = sizeof(base::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + // workaround for compilers unable to figure out that 16 - N is a constant (GCC 8) + constexpr int shift = 16 - N; + return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm512_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m512i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + simdjson_inline bool any() const { return !!_mm512_test_epi8_mask (*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm512_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm512_setzero_si512(); } + static simdjson_inline simd8 load(const T values[64]) { + return _mm512_loadu_si512(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m512i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[64]) const { return _mm512_storeu_si512(reinterpret_cast<__m512i *>(dst), *this); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm512_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm512_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm512_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint64_t mask, L * output) const { + _mm512_mask_compressstoreu_epi8 (output,~mask,*this); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31, + int8_t v32, int8_t v33, int8_t v34, int8_t v35, int8_t v36, int8_t v37, int8_t v38, int8_t v39, + int8_t v40, int8_t v41, int8_t v42, int8_t v43, int8_t v44, int8_t v45, int8_t v46, int8_t v47, + int8_t v48, int8_t v49, int8_t v50, int8_t v51, int8_t v52, int8_t v53, int8_t v54, int8_t v55, + int8_t v56, int8_t v57, int8_t v58, int8_t v59, int8_t v60, int8_t v61, int8_t v62, int8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epi8(*this, other); } + + simdjson_inline simd8 operator>(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(*this, other),_mm512_set1_epi8(uint8_t(0x80))); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(other, *this),_mm512_set1_epi8(uint8_t(0x80))); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31, + uint8_t v32, uint8_t v33, uint8_t v34, uint8_t v35, uint8_t v36, uint8_t v37, uint8_t v38, uint8_t v39, + uint8_t v40, uint8_t v41, uint8_t v42, uint8_t v43, uint8_t v44, uint8_t v45, uint8_t v46, uint8_t v47, + uint8_t v48, uint8_t v49, uint8_t v50, uint8_t v51, uint8_t v52, uint8_t v53, uint8_t v54, uint8_t v55, + uint8_t v56, uint8_t v57, uint8_t v58, uint8_t v59, uint8_t v60, uint8_t v61, uint8_t v62, uint8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm512_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm512_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline uint64_t operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline uint64_t operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return _mm512_mask_blend_epi8(*this == uint8_t(0), _mm512_set1_epi8(0), _mm512_set1_epi8(-1)); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + + simdjson_inline bool is_ascii() const { return _mm512_movepi8_mask(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { + return !_mm512_test_epi8_mask(*this, *this); + } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return !_mm512_test_epi8_mask(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm512_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm512_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline uint64_t get_bit() const { return _mm512_movepi8_mask(_mm512_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 1, "Icelake kernel should use one register per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const simd8 chunk0) : chunks{chunk0} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(mask, output); + return 64 - count_ones(mask); + } + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + } + + simdjson_inline simd8 reduce_or() const { + return this->chunks[0]; + } + + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask + ); + } -simdjson_unused static char * format_mask(uint64_t mask) { - static char buf[sizeof(simd8x64) + 1]; - for (size_t i=0; i<64; i++) { - buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; - } - buf[64] = '\0'; - return buf; -} + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] == mask; + } -template -simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return this->chunks[0] == other.chunks[0]; + } -template -simdjson_inline size_t buf_block_reader::block_index() { return idx; } + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] <= mask; + } + }; // struct simd8x64 -template -simdjson_inline bool buf_block_reader::has_full_block() const { - return idx < lenminusstep; -} +} // namespace simd -template -simdjson_inline const uint8_t *buf_block_reader::full_block() const { - return &buf[idx]; -} +} // unnamed namespace +} // namespace icelake +} // namespace simdjson -template -simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { - if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers - std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. - std::memcpy(dst, buf + idx, len - idx); - return len - idx; -} +#endif // SIMDJSON_ICELAKE_SIMD_H +/* end file simdjson/icelake/simd.h */ +/* including simdjson/icelake/stringparsing_defs.h: #include "simdjson/icelake/stringparsing_defs.h" */ +/* begin file simdjson/icelake/stringparsing_defs.h */ +#ifndef SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H +#define SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H -template -simdjson_inline void buf_block_reader::advance() { - idx += STEP_SIZE; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint64_t bs_bits; + uint64_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast(v == '\\'), // bs_bits + static_cast(v == '"'), // quote_bits + }; } } // unnamed namespace -} // namespace arm64 +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/buf_block_reader.h */ -/* begin file src/generic/stage1/json_string_scanner.h */ + +#endif // SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H +/* end file simdjson/icelake/stringparsing_defs.h */ +/* including simdjson/icelake/numberparsing_defs.h: #include "simdjson/icelake/numberparsing_defs.h" */ +/* begin file simdjson/icelake/numberparsing_defs.h */ +#ifndef SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H +#define SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace arm64 { -namespace { -namespace stage1 { +namespace icelake { +namespace numberparsing { + +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} -struct json_string_block { - // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 - simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : - _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} +} // namespace numberparsing +} // namespace icelake +} // namespace simdjson - // Escaped characters (characters following an escape() character) - simdjson_inline uint64_t escaped() const { return _escaped; } - // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) - simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } - // Real (non-backslashed) quotes - simdjson_inline uint64_t quote() const { return _quote; } - // Start quotes of strings - simdjson_inline uint64_t string_start() const { return _quote & _in_string; } - // End quotes of strings - simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } - // Only characters inside the string (not including the quotes) - simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } - // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } - // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } - // Tail of string (everything except the start quote) - simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } +#define SIMDJSON_SWAR_NUMBER_PARSING 1 - // backslash characters - uint64_t _backslash; - // escaped characters (backslashed--does not include the hex characters after \u) - uint64_t _escaped; - // real quotes (non-backslashed ones) - uint64_t _quote; - // string characters (includes start quote but not end quote) - uint64_t _in_string; -}; +#endif // SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H +/* end file simdjson/icelake/numberparsing_defs.h */ +/* end file simdjson/icelake/begin.h */ +/* including simdjson/generic/amalgamated.h for icelake: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for icelake */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif -// Scans blocks for string characters, storing the state necessary to do so -class json_string_scanner { -public: - simdjson_inline json_string_block next(const simd::simd8x64& in); - // Returns either UNCLOSED_STRING or SUCCESS - simdjson_inline error_code finish(); +/* including simdjson/generic/base.h for icelake: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for icelake */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -private: - // Intended to be defined by the implementation - simdjson_inline uint64_t find_escaped(uint64_t escape); - simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); +namespace simdjson { +namespace icelake { - // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). - uint64_t prev_in_string = 0ULL; - // Whether the first character of the next iteration is escaped. - uint64_t prev_escaped = 0ULL; +struct open_container; +class dom_parser_implementation; + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 }; -// -// Finds escaped characters (characters following \). -// -// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). -// -// Does this by: -// - Shift the escape mask to get potentially escaped characters (characters after backslashes). -// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) -// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) -// -// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all -// escape sequences, filters out the ones that start on even bits, and adds that to the mask of -// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since -// the start bit causes a carry), and leaves even-bit sequences alone. -// -// Example: -// -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape -// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape -// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later -// invert_mask | | cxxx c xx c| even_seq << 1 -// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit -// escaped | x | x x x x x x x x | -// desired | x | x x x x x x x x | -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// -simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { - // If there was overflow, pretend the first character isn't a backslash - backslash &= ~prev_escaped; - uint64_t follows_escape = backslash << 1 | prev_escaped; +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for icelake */ +/* including simdjson/generic/jsoncharutils.h for icelake: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for icelake */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { +namespace jsoncharutils { - // Get sequences starting on even bits by clearing out the odd series using + - const uint64_t even_bits = 0x5555555555555555ULL; - uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; - uint64_t sequences_starting_on_even_bits; - prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); - uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} - // Mask every other backslashed character as an escaped character - // Flip the mask for sequences that start on even bits, to correct them - return (even_bits ^ invert_mask) & follows_escape; +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; } +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register // -// Return a mask of all string characters plus end quotes. +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid // -// prev_escaped is overflow saying whether the next character is escaped. -// prev_in_string is overflow saying whether we're still in a string. +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. // -// Backslash sequences outside of quotes will be detected in stage 2. +// Note: we assume that surrogates are treated separately // -simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { - const uint64_t backslash = in.eq('\\'); - const uint64_t escaped = find_escaped(backslash); - const uint64_t quote = in.eq('"') & ~escaped; - - // - // prefix_xor flips on bits inside the string (and flips off the end quote). - // - // Then we xor with prev_in_string: if we were in a string already, its effect is flipped - // (characters inside strings are outside, and characters outside strings are inside). - // - const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; - - // - // Check if we're still in a string at the end of the box so the next block will know - // - // right shift of a signed value expected to be well-defined and standard - // compliant as of C++20, John Regher from Utah U. says this is fine code - // - prev_in_string = uint64_t(static_cast(in_string) >> 63); - - // Use ^ to turn the beginning quote off, and the end quote on. - - // We are returning a function-local object so either we get a move constructor - // or we get copy elision. - return json_string_block( - backslash, - escaped, - quote, - in_string - ); +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r } -simdjson_inline error_code json_string_scanner::finish() { - if (prev_in_string) { - return UNCLOSED_STRING; - } - return SUCCESS; +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; } +#endif -} // namespace stage1 +} // namespace jsoncharutils } // unnamed namespace -} // namespace arm64 +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/json_string_scanner.h */ -/* begin file src/generic/stage1/json_scanner.h */ -namespace simdjson { -namespace arm64 { -namespace { -namespace stage1 { -/** - * A block of scanned json, with information on operators and scalars. - * - * We seek to identify pseudo-structural characters. Anything that is inside - * a string must be omitted (hence & ~_string.string_tail()). - * Otherwise, pseudo-structural characters come in two forms. - * 1. We have the structural characters ([,],{,},:, comma). The - * term 'structural character' is from the JSON RFC. - * 2. We have the 'scalar pseudo-structural characters'. - * Scalars are quotes, and any character except structural characters and white space. - * - * To identify the scalar pseudo-structural characters, we must look at what comes - * before them: it must be a space, a quote or a structural characters. - * Starting with simdjson v0.3, we identify them by - * negation: we identify everything that is followed by a non-quote scalar, - * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. - */ -struct json_block { -public: - // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 - simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : - _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} - simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : - _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for icelake */ +/* including simdjson/generic/atomparsing.h for icelake: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for icelake */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H - /** - * The start of structurals. - * In simdjson prior to v0.3, these were called the pseudo-structural characters. - **/ - simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } - /** All JSON whitespace (i.e. not in a string) */ - simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // Helpers +#include - /** Whether the given characters are inside a string (only works on non-quotes) */ - simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } - /** Whether the given characters are outside a string (only works on non-quotes) */ - simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } +namespace simdjson { +namespace icelake { +namespace { +/// @private +namespace atomparsing { - // string and escape characters - json_string_block _string; - // whitespace, structural characters ('operators'), scalars - json_character_block _characters; - // whether the previous character was a scalar - uint64_t _follows_potential_nonquote_scalar; -private: - // Potential structurals (i.e. disregarding strings) +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } - /** - * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". - * They may reside inside a string. - **/ - simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } - /** - * The start of non-operator runs, like 123, true and "abc". - * It main reside inside a string. - **/ - simdjson_inline uint64_t potential_scalar_start() const noexcept { - // The term "scalar" refers to anything except structural characters and white space - // (so letters, numbers, quotes). - // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space - // then we know that it is irrelevant structurally. - return _characters.scalar() & ~follows_potential_scalar(); - } - /** - * Whether the given character is immediately after a non-operator like 123, true. - * The characters following a quote are not included. - */ - simdjson_inline uint64_t follows_potential_scalar() const noexcept { - // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character - // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a - // white space. - // It is understood that within quoted region, anything at all could be marked (irrelevant). - return _follows_potential_nonquote_scalar; - } -}; -/** - * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. - * - * The scanner starts by calculating two distinct things: - * - string characters (taking \" into account) - * - structural characters or 'operators' ([]{},:, comma) - * and scalars (runs of non-operators like 123, true and "abc") - * - * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: - * in particular, the operator/scalar bit will find plenty of things that are actually part of - * strings. When we're done, json_block will fuse the two together by masking out tokens that are - * part of a string. - */ -class json_scanner { -public: - json_scanner() = default; - simdjson_inline json_block next(const simd::simd8x64& in); - // Returns either UNCLOSED_STRING or SUCCESS - simdjson_inline error_code finish(); +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} -private: - // Whether the last character of the previous iteration is part of a scalar token - // (anything except whitespace or a structural character/'operator'). - uint64_t prev_scalar = 0ULL; - json_string_scanner string_scanner{}; -}; +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} -// -// Check if the current character immediately follows a matching character. -// -// For example, this checks for quotes with backslashes in front of them: -// -// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); -// -simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { - const uint64_t result = match << 1 | overflow; - overflow = match >> 63; - return result; +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } } -simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { - json_string_block strings = string_scanner.next(in); - // identifies the white-space and the structural characters - json_character_block characters = json_character_block::classify(in); - // The term "scalar" refers to anything except structural characters and white space - // (so letters, numbers, quotes). - // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). - // - // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) - // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential - // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we - // may need to add an extra check when parsing strings. - // - // Performance: there are many ways to skin this cat. - const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); - uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); - // We are returning a function-local object so either we get a move constructor - // or we get copy elision. - return json_block( - strings,// strings is a function-local object so either it moves or the copy is elided. - characters, - follows_nonquote_scalar - ); +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; } -simdjson_inline error_code json_scanner::finish() { - return string_scanner.finish(); +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } } -} // namespace stage1 +} // namespace atomparsing } // unnamed namespace -} // namespace arm64 +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/json_scanner.h */ -/* begin file src/generic/stage1/json_minifier.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for icelake */ +/* including simdjson/generic/dom_parser_implementation.h for icelake: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for icelake */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace arm64 { -namespace { -namespace stage1 { +namespace icelake { -class json_minifier { -public: - template - static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; private: - simdjson_inline json_minifier(uint8_t *_dst) - : dst{_dst} - {} - template - simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; - simdjson_inline void next(const simd::simd8x64& in, const json_block& block); - simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); - json_scanner scanner{}; - uint8_t *dst; + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + }; -simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { - uint64_t mask = block.whitespace(); - dst += in.compress(mask, dst); -} +} // namespace icelake +} // namespace simdjson -simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { - error_code error = scanner.finish(); - if (error) { dst_len = 0; return error; } - dst_len = dst - dst_start; +namespace simdjson { +namespace icelake { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; return SUCCESS; } -template<> -simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - simd::simd8x64 in_2(block_buf+64); - json_block block_1 = scanner.next(in_1); - json_block block_2 = scanner.next(in_2); - this->next(in_1, block_1); - this->next(in_2, block_2); - reader.advance(); -} +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } -template<> -simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - json_block block_1 = scanner.next(in_1); - this->next(block_buf, block_1); - reader.advance(); + _max_depth = max_depth; + return SUCCESS; } -template -error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { - buf_block_reader reader(buf, len); - json_minifier minifier(dst); +} // namespace icelake +} // namespace simdjson - // Index the first n-1 blocks - while (reader.has_full_block()) { - minifier.step(reader.full_block(), reader); - } +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for icelake */ +/* including simdjson/generic/implementation_simdjson_result_base.h for icelake: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for icelake */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H - // Index the last (remainder) block, padded with spaces - uint8_t block[STEP_SIZE]; - size_t remaining_bytes = reader.get_remainder(block); - if (remaining_bytes > 0) { - // We do not want to write directly to the output stream. Rather, we write - // to a local buffer (for safety). - uint8_t out_block[STEP_SIZE]; - uint8_t * const guarded_dst{minifier.dst}; - minifier.dst = out_block; - minifier.step(block, reader); - size_t to_write = minifier.dst - out_block; - // In some cases, we could be enticed to consider the padded spaces - // as part of the string. This is fine as long as we do not write more - // than we consumed. - if(to_write > remaining_bytes) { to_write = remaining_bytes; } - memcpy(guarded_dst, out_block, to_write); - minifier.dst = guarded_dst + to_write; - } - return minifier.finish(dst, dst_len); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -} // namespace stage1 -} // unnamed namespace -} // namespace arm64 +namespace simdjson { +namespace icelake { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/json_minifier.h */ -/* begin file src/generic/stage1/find_next_document_index.h */ + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for icelake */ +/* including simdjson/generic/numberparsing.h for icelake: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for icelake */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + namespace simdjson { -namespace arm64 { +namespace icelake { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + namespace { -/** - * This algorithm is used to quickly identify the last structural position that - * makes up a complete document. - * - * It does this by going backwards and finding the last *document boundary* (a - * place where one value follows another without a comma between them). If the - * last document (the characters after the boundary) has an equal number of - * start and end brackets, it is considered complete. - * - * Simply put, we iterate over the structural characters, starting from - * the end. We consider that we found the end of a JSON document when the - * first element of the pair is NOT one of these characters: '{' '[' ':' ',' - * and when the second element is NOT one of these characters: '}' ']' ':' ','. - * - * This simple comparison works most of the time, but it does not cover cases - * where the batch's structural indexes contain a perfect amount of documents. - * In such a case, we do not have access to the structural index which follows - * the last document, therefore, we do not have access to the second element in - * the pair, and that means we cannot identify the last document. To fix this - * issue, we keep a count of the open and closed curly/square braces we found - * while searching for the pair. When we find a pair AND the count of open and - * closed curly/square braces is the same, we know that we just passed a - * complete document, therefore the last json buffer location is the end of the - * batch. - */ -simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { - // Variant: do not count separately, just figure out depth - if(parser.n_structural_indexes == 0) { return 0; } - auto arr_cnt = 0; - auto obj_cnt = 0; - for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { - auto idxb = parser.structural_indexes[i]; - switch (parser.buf[idxb]) { - case ':': - case ',': - continue; - case '}': - obj_cnt--; - continue; - case ']': - arr_cnt--; - continue; - case '{': - obj_cnt++; - break; - case '[': - arr_cnt++; - break; +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; } - auto idxa = parser.structural_indexes[i - 1]; - switch (parser.buf[idxa]) { - case '{': - case '[': - case ':': - case ',': - continue; + if (negative) { + d = -d; } - // Last document is complete, so the next document will appear after! - if (!arr_cnt && !obj_cnt) { - return parser.n_structural_indexes; + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; } - // Last document is incomplete; mark the document at i + 1 as the next one - return i; } - // If we made it to the end, we want to finish counting to see if we have a full document. - switch (parser.buf[parser.structural_indexes[0]]) { - case '}': - obj_cnt--; - break; - case ']': - arr_cnt--; - break; - case '{': - obj_cnt++; - break; - case '[': - arr_cnt++; - break; + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } } - if (!arr_cnt && !obj_cnt) { - // We have a complete document. - return parser.n_structural_indexes; + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; } - return 0; + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; } -} // unnamed namespace -} // namespace arm64 -} // namespace simdjson -/* end file src/generic/stage1/find_next_document_index.h */ +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} -namespace simdjson { -namespace arm64 { -namespace { -namespace stage1 { +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. -class bit_indexer { -public: - uint32_t *tail; + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} - simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} - // flatten out values in 'bits' assuming that they are are to have values of idx - // plus their position in the bitvector, and store these indexes at - // base_ptr[base] incrementing base as we go - // will potentially store extra values beyond end of valid bits, so base_ptr - // needs to be large enough to handle this +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. // - // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own - // version of the code. -#ifdef SIMDJSON_CUSTOM_BIT_INDEXER - simdjson_inline void write(uint32_t idx, uint64_t bits); + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } #else - simdjson_inline void write(uint32_t idx, uint64_t bits) { - // In some instances, the next branch is expensive because it is mispredicted. - // Unfortunately, in other cases, - // it helps tremendously. - if (bits == 0) - return; -#if SIMDJSON_PREFER_REVERSE_BITS - /** - * ARM lacks a fast trailing zero instruction, but it has a fast - * bit reversal instruction and a fast leading zero instruction. - * Thus it may be profitable to reverse the bits (once) and then - * to rely on a sequence of instructions that call the leading - * zero instruction. - * - * Performance notes: - * The chosen routine is not optimal in terms of data dependency - * since zero_leading_bit might require two instructions. However, - * it tends to minimize the total number of instructions which is - * beneficial. - */ - uint64_t rev_bits = reverse_bits(bits); - int cnt = static_cast(count_ones(bits)); - int i = 0; - // Do the first 8 all together - for (; i<8; i++) { - int lz = leading_zeroes(rev_bits); - this->tail[i] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } - // Do the next 8 all together (we hope in most cases it won't happen at all - // and the branch is easily predicted). - if (simdjson_unlikely(cnt > 8)) { - i = 8; - for (; i<16; i++) { - int lz = leading_zeroes(rev_bits); - this->tail[i] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); - // Most files don't have 16+ structurals per block, so we take several basically guaranteed - // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) - // or the start of a value ("abc" true 123) every four characters. - if (simdjson_unlikely(cnt > 16)) { - i = 16; - while (rev_bits != 0) { - int lz = leading_zeroes(rev_bits); - this->tail[i++] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } - } - } - this->tail += cnt; -#else // SIMDJSON_PREFER_REVERSE_BITS - /** - * Under recent x64 systems, we often have both a fast trailing zero - * instruction and a fast 'clear-lower-bit' instruction so the following - * algorithm can be competitive. - */ + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } - int cnt = static_cast(count_ones(bits)); - // Do the first 8 all together - for (int i=0; i<8; i++) { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); - } + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } - // Do the next 8 all together (we hope in most cases it won't happen at all - // and the branch is easily predicted). - if (simdjson_unlikely(cnt > 8)) { - for (int i=8; i<16; i++) { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); - } + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } - // Most files don't have 16+ structurals per block, so we take several basically guaranteed - // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) - // or the start of a value ("abc" true 123) every four characters. - if (simdjson_unlikely(cnt > 16)) { - int i = 16; - do { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); - i++; - } while (i < cnt); - } - } + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} - this->tail += cnt; -#endif +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } } -#endif // SIMDJSON_CUSTOM_BIT_INDEXER -}; + return i; +} -class json_structural_indexer { -public: - /** - * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. - * - * @param partial Setting the partial parameter to true allows the find_structural_bits to - * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If - * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. - */ - template - static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; -private: - simdjson_inline json_structural_indexer(uint32_t *structural_indexes); - template - simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; - simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); - simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; - json_scanner scanner{}; - utf8_checker checker{}; - bit_indexer indexer; - uint64_t prev_structurals = 0; - uint64_t unescaped_chars_error = 0; -}; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); -simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } -// Skip the last character if it is partial -simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { - if (simdjson_unlikely(len < 3)) { - switch (len) { - case 2: - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left - return len; - case 1: - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - return len; - case 0: - return len; + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; } + } else { + overflow = p-src > 19; } - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left - if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left - return len; -} -// -// PERF NOTES: -// We pipe 2 inputs through these stages: -// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load -// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. -// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. -// The output of step 1 depends entirely on this information. These functions don't quite use -// up enough CPU: the second half of the functions is highly serial, only using 1 execution core -// at a time. The second input's scans has some dependency on the first ones finishing it, but -// they can make a lot of progress before they need that information. -// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that -// to finish: utf-8 checks and generating the output from the last iteration. -// -// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all -// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough -// workout. -// -template -error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { - if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } - // We guard the rest of the code so that we can assume that len > 0 throughout. - if (len == 0) { return EMPTY; } - if (is_streaming(partial)) { - len = trim_partial_utf8(buf, len); - // If you end up with an empty window after trimming - // the partial UTF-8 bytes, then chances are good that you - // have an UTF-8 formatting error. - if(len == 0) { return UTF8_ERROR; } + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; } - buf_block_reader reader(buf, len); - json_structural_indexer indexer(parser.structural_indexes.get()); - // Read all but the last block - while (reader.has_full_block()) { - indexer.step(reader.full_block(), reader); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } } - // Take care of the last block (will always be there unless file is empty which is - // not supposed to happen.) - uint8_t block[STEP_SIZE]; - if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } - indexer.step(block, reader); - return indexer.finish(parser, reader.block_index(), len, partial); + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; } -template<> -simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { - simd::simd8x64 in_1(block); - simd::simd8x64 in_2(block+64); - json_block block_1 = scanner.next(in_1); - json_block block_2 = scanner.next(in_2); - this->next(in_1, block_1, reader.block_index()); - this->next(in_2, block_2, reader.block_index()+64); - reader.advance(); +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); } -template<> -simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { - simd::simd8x64 in_1(block); - json_block block_1 = scanner.next(in_1); - this->next(in_1, block_1, reader.block_index()); - reader.advance(); +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; } -simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { - uint64_t unescaped = in.lteq(0x1F); -#if SIMDJSON_UTF8VALIDATION - checker.check_next_input(in); -#endif - indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser - prev_structurals = block.structural_start(); - unescaped_chars_error |= block.non_quote_inside_string(unescaped); +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; } -simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { - // Write out the final iteration's structurals - indexer.write(uint32_t(idx-64), prev_structurals); - error_code error = scanner.finish(); - // We deliberately break down the next expression so that it is - // human readable. - const bool should_we_exit = is_streaming(partial) ? - ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING - : (error != SUCCESS); // if partial is false, we must have SUCCESS - const bool have_unclosed_string = (error == UNCLOSED_STRING); - if (simdjson_unlikely(should_we_exit)) { return error; } +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); - if (unescaped_chars_error) { - return UNESCAPED_CHARS; - } - parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); - /*** - * The On Demand API requires special padding. - * - * This is related to https://github.com/simdjson/simdjson/issues/906 - * Basically, we want to make sure that if the parsing continues beyond the last (valid) - * structural character, it quickly stops. - * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. - * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing - * continues, then it must be [,] or }. - * Suppose it is ] or }. We backtrack to the first character, what could it be that would - * not trigger an error? It could be ] or } but no, because you can't start a document that way. - * It can't be a comma, a colon or any simple value. So the only way we could continue is - * if the repeated character is [. But if so, the document must start with [. But if the document - * starts with [, it should end with ]. If we enforce that rule, then we would get - * ][[ which is invalid. - * - * This is illustrated with the test array_iterate_unclosed_error() on the following input: - * R"({ "a": [,,)" - **/ - parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final - parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); - parser.structural_indexes[parser.n_structural_indexes + 2] = 0; - parser.next_structural_index = 0; - // a valid JSON file cannot have zero structural indexes - we should have found something - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { - return EMPTY; - } - if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { - return UNEXPECTED_ERROR; - } - if (partial == stage1_mode::streaming_partial) { - // If we have an unclosed string, then the last structural - // will be the quote and we want to make sure to omit it. - if(have_unclosed_string) { - parser.n_structural_indexes--; - // a valid JSON file cannot have zero structural indexes - we should have found something - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } - } - // We truncate the input to the end of the last complete document (or zero). - auto new_structural_indexes = find_next_document_index(parser); - if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { - if(parser.structural_indexes[0] == 0) { - // If the buffer is partial and we started at index 0 but the document is - // incomplete, it's too big to parse. - return CAPACITY; - } else { - // It is possible that the document could be parsed, we just had a lot - // of white space. - parser.n_structural_indexes = 0; - return EMPTY; - } - } + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } - parser.n_structural_indexes = new_structural_indexes; - } else if (partial == stage1_mode::streaming_final) { - if(have_unclosed_string) { parser.n_structural_indexes--; } - // We truncate the input to the end of the last complete document (or zero). - // Because partial == stage1_mode::streaming_final, it means that we may - // silently ignore trailing garbage. Though it sounds bad, we do it - // deliberately because many people who have streams of JSON documents - // will truncate them for processing. E.g., imagine that you are uncompressing - // the data from a size file or receiving it in chunks from the network. You - // may not know where exactly the last document will be. Meanwhile the - // document_stream instances allow people to know the JSON documents they are - // parsing (see the iterator.source() method). - parser.n_structural_indexes = find_next_document_index(parser); - // We store the initial n_structural_indexes so that the client can see - // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, - // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, - // otherwise, it will copy some prior index. - parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; - // This next line is critical, do not change it unless you understand what you are - // doing. - parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { - // We tolerate an unclosed string at the very end of the stream. Indeed, users - // often load their data in bulk without being careful and they want us to ignore - // the trailing garbage. - return EMPTY; + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; } + } else { + overflow = p-src > 19; } - checker.check_eof(); - return checker.errors(); -} -} // namespace stage1 -} // unnamed namespace -} // namespace arm64 -} // namespace simdjson -/* end file src/generic/stage1/json_structural_indexer.h */ -/* begin file src/generic/stage1/utf8_validator.h */ -namespace simdjson { -namespace arm64 { -namespace { -namespace stage1 { + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; -/** - * Validates that the string is actual UTF-8. - */ -template -bool generic_validate_utf8(const uint8_t * input, size_t length) { - checker c{}; - buf_block_reader<64> reader(input, length); - while (reader.has_full_block()) { - simd::simd8x64 in(reader.full_block()); - c.check_next_input(in); - reader.advance(); - } - uint8_t block[64]{}; - reader.get_remainder(block); - simd::simd8x64 in(block); - c.check_next_input(in); - reader.advance(); - c.check_eof(); - return c.errors() == error_code::SUCCESS; -} + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } -bool generic_validate_utf8(const char * input, size_t length) { - return generic_validate_utf8(reinterpret_cast(input),length); + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; } -} // namespace stage1 -} // unnamed namespace -} // namespace arm64 -} // namespace simdjson -/* end file src/generic/stage1/utf8_validator.h */ +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; -// -// Stage 2 -// + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } -/* begin file src/generic/stage2/stringparsing.h */ -// This file contains the common code every implementation uses -// It is intended to be included multiple times and compiled multiple times + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } -namespace simdjson { -namespace arm64 { -namespace { -/// @private -namespace stringparsing { + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; -// begin copypasta -// These chars yield themselves: " \ / -// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab -// u not handled in this table as it's complex -static const uint8_t escape_map[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. - 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. - 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + exponent += exp_neg ? 0-exp : exp; + } - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + if (*p != '"') { return NUMBER_ERROR; } - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -}; + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; -// handle a unicode codepoint -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, - uint8_t **dst_ptr, bool allow_replacement) { - // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) - constexpr uint32_t substitution_code_point = 0xfffd; - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING - // We have already checked that the high surrogate is valid and - // (code_point - 0xd800) < 1024. - // - // Check that code_point_2 is in the range 0xdc00..0xdfff - // and that code_point_2 was parsed from valid hex. - uint32_t low_bit = code_point_2 - 0xdc00; - if (low_bit >> 10) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } +} // namespace numberparsing +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); } - } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { - // If we encounter a low surrogate (not preceded by a high surrogate) - // then we have an error. - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; + return out; } +} // namespace icelake +} // namespace simdjson -// handle a unicode codepoint using the wobbly convention -// https://simonsapin.github.io/wtf-8/ -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, - uint8_t **dst_ptr) { - // It is not ideal that this function is nearly identical to handle_unicode_codepoint. - // - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - uint32_t low_bit = code_point_2 - 0xdc00; - if ((low_bit >> 10) == 0) { - code_point = - (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } - } - } +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for icelake */ - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; -} +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for icelake: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -/** - * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There - * must be an unescaped quote terminating the string. It returns the final output - * position as pointer. In case of error (e.g., the string has bad escaped codes), - * then null_nullptrptr is returned. It is assumed that the output buffer is large - * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + - * SIMDJSON_PADDING bytes. - */ -simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } +namespace simdjson { +namespace icelake { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; } - /* can't be reached */ - return nullptr; } -simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { - // It is not ideal that this function is nearly identical to parse_string. - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint_wobbly(&src, &dst)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; } -} // namespace stringparsing -} // unnamed namespace -} // namespace arm64 +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage2/stringparsing.h */ -/* begin file src/generic/stage2/tape_builder.h */ -/* begin file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/logger.h */ -// This is for an internal-only stage 2 specific logger. -// Set LOG_ENABLED = true to log what stage 2 is doing! + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for icelake */ +/* end file simdjson/generic/amalgamated.h for icelake */ +/* including simdjson/icelake/end.h: #include "simdjson/icelake/end.h" */ +/* begin file simdjson/icelake/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "icelake" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/icelake/end.h */ + +#endif // SIMDJSON_ICELAKE_H +/* end file simdjson/icelake.h */ +/* including simdjson/icelake/implementation.h: #include */ +/* begin file simdjson/icelake/implementation.h */ +#ifndef SIMDJSON_ICELAKE_IMPLEMENTATION_H +#define SIMDJSON_ICELAKE_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE namespace simdjson { -namespace arm64 { -namespace { -namespace logger { +namespace icelake { - static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "icelake", + "Intel/AMD AVX512", + internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 | internal::instruction_set::AVX512F | internal::instruction_set::AVX512DQ | internal::instruction_set::AVX512CD | internal::instruction_set::AVX512BW | internal::instruction_set::AVX512VL | internal::instruction_set::AVX512VBMI2 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; -#if SIMDJSON_VERBOSE_LOGGING - static constexpr const bool LOG_ENABLED = true; +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_IMPLEMENTATION_H +/* end file simdjson/icelake/implementation.h */ + +// defining SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER allows us to provide our own bit_indexer::write +#define SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + +/* including simdjson/icelake/begin.h: #include */ +/* begin file simdjson/icelake/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "icelake" */ +#define SIMDJSON_IMPLEMENTATION icelake +/* including simdjson/icelake/base.h: #include "simdjson/icelake/base.h" */ +/* begin file simdjson/icelake/base.h */ +#ifndef SIMDJSON_ICELAKE_BASE_H +#define SIMDJSON_ICELAKE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE +namespace simdjson { +/** + * Implementation for Icelake (Intel AVX512). + */ +namespace icelake { + +class implementation; + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_BASE_H +/* end file simdjson/icelake/base.h */ +/* including simdjson/icelake/intrinsics.h: #include "simdjson/icelake/intrinsics.h" */ +/* begin file simdjson/icelake/intrinsics.h */ +#ifndef SIMDJSON_ICELAKE_INTRINSICS_H +#define SIMDJSON_ICELAKE_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang #else - static constexpr const bool LOG_ENABLED = false; +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// Important: we need the AVX-512 headers: +#include +#include +#include +#include +#include +#include +#include +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m512i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for icelake"); + +#endif // SIMDJSON_ICELAKE_INTRINSICS_H +/* end file simdjson/icelake/intrinsics.h */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +SIMDJSON_TARGET_REGION("avx512f,avx512dq,avx512cd,avx512bw,avx512vbmi,avx512vbmi2,avx512vl,avx2,bmi,pclmul,lzcnt,popcnt") #endif - static constexpr const int LOG_EVENT_LEN = 20; - static constexpr const int LOG_BUFFER_LEN = 30; - static constexpr const int LOG_SMALL_BUFFER_LEN = 10; - static constexpr const int LOG_INDEX_LEN = 5; - static int log_depth; // Not threadsafe. Log only. +/* including simdjson/icelake/bitmanipulation.h: #include "simdjson/icelake/bitmanipulation.h" */ +/* begin file simdjson/icelake/bitmanipulation.h */ +#ifndef SIMDJSON_ICELAKE_BITMANIPULATION_H +#define SIMDJSON_ICELAKE_BITMANIPULATION_H - // Helper to turn unprintable or newline characters into spaces - static simdjson_inline char printable_char(char c) { - if (c >= 0x20) { - return c; - } else { - return ' '; - } - } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // Print the header and set up log_start - static simdjson_inline void log_start() { - if (LOG_ENABLED) { - log_depth = 0; - printf("\n"); - printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); - printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); - } - } +namespace simdjson { +namespace icelake { +namespace { - simdjson_unused static simdjson_inline void log_string(const char *message) { - if (LOG_ENABLED) { - printf("%s\n", message); - } - } +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return _blsr_u64(input_num); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { + return int(_lzcnt_u64(input_num)); +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif - // Logs a single line from the stage 2 DOM parser - template - static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { - if (LOG_ENABLED) { - printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); - auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; - auto next_index = structurals.next_structural; - auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); - auto next = &structurals.buf[*next_index]; - { - // Print the next N characters in the buffer. - printf("| "); - // Otherwise, print the characters starting from the buffer position. - // Print spaces for unprintable or newline characters. - for (int i=0;i(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} -} // namespace logger } // unnamed namespace -} // namespace arm64 +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage2/logger.h */ -namespace simdjson { -namespace arm64 { -namespace { -namespace stage2 { +#endif // SIMDJSON_ICELAKE_BITMANIPULATION_H +/* end file simdjson/icelake/bitmanipulation.h */ +/* including simdjson/icelake/bitmask.h: #include "simdjson/icelake/bitmask.h" */ +/* begin file simdjson/icelake/bitmask.h */ +#ifndef SIMDJSON_ICELAKE_BITMASK_H +#define SIMDJSON_ICELAKE_BITMASK_H -class json_iterator { -public: - const uint8_t* const buf; - uint32_t *next_structural; - dom_parser_implementation &dom_parser; - uint32_t depth{0}; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - /** - * Walk the JSON document. - * - * The visitor receives callbacks when values are encountered. All callbacks pass the iterator as - * the first parameter; some callbacks have other parameters as well: - * - * - visit_document_start() - at the beginning. - * - visit_document_end() - at the end (if things were successful). - * - * - visit_array_start() - at the start `[` of a non-empty array. - * - visit_array_end() - at the end `]` of a non-empty array. - * - visit_empty_array() - when an empty array is encountered. - * - * - visit_object_end() - at the start `]` of a non-empty object. - * - visit_object_start() - at the end `]` of a non-empty object. - * - visit_empty_object() - when an empty object is encountered. - * - visit_key(const uint8_t *key) - when a key in an object field is encountered. key is - * guaranteed to point at the first quote of the string (`"key"`). - * - visit_primitive(const uint8_t *value) - when a value is a string, number, boolean or null. - * - visit_root_primitive(iter, uint8_t *value) - when the top-level value is a string, number, boolean or null. - * - * - increment_count(iter) - each time a value is found in an array or object. - */ - template - simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; +namespace simdjson { +namespace icelake { +namespace { - /** - * Create an iterator capable of walking a JSON document. - * - * The document must have already passed through stage 1. - */ - simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} - /** - * Look at the next token. - * - * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). - * - * They may include invalid JSON as well (such as `1.2.3` or `ture`). - */ - simdjson_inline const uint8_t *peek() const noexcept; - /** - * Advance to the next token. - * - * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). - * - * They may include invalid JSON as well (such as `1.2.3` or `ture`). - */ - simdjson_inline const uint8_t *advance() noexcept; - /** - * Get the remaining length of the document, from the start of the current token. - */ - simdjson_inline size_t remaining_len() const noexcept; - /** - * Check if we are at the end of the document. - * - * If this is true, there are no more tokens. - */ - simdjson_inline bool at_eof() const noexcept; - /** - * Check if we are at the beginning of the document. - */ - simdjson_inline bool at_beginning() const noexcept; - simdjson_inline uint8_t last_structural() const noexcept; +} // unnamed namespace +} // namespace icelake +} // namespace simdjson - /** - * Log that a value has been found. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_value(const char *type) const noexcept; - /** - * Log the start of a multipart value. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_start_value(const char *type) const noexcept; - /** - * Log the end of a multipart value. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_end_value(const char *type) const noexcept; - /** - * Log an error. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_error(const char *error) const noexcept; +#endif // SIMDJSON_ICELAKE_BITMASK_H +/* end file simdjson/icelake/bitmask.h */ +/* including simdjson/icelake/simd.h: #include "simdjson/icelake/simd.h" */ +/* begin file simdjson/icelake/simd.h */ +#ifndef SIMDJSON_ICELAKE_SIMD_H +#define SIMDJSON_ICELAKE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if defined(__GNUC__) && !defined(__clang__) +#if __GNUC__ == 8 +#define SIMDJSON_GCC8 1 +#endif // __GNUC__ == 8 +#endif // defined(__GNUC__) && !defined(__clang__) + +#if SIMDJSON_GCC8 +/** + * GCC 8 fails to provide _mm512_set_epi8. We roll our own. + */ +inline __m512i _mm512_set_epi8(uint8_t a0, uint8_t a1, uint8_t a2, uint8_t a3, uint8_t a4, uint8_t a5, uint8_t a6, uint8_t a7, uint8_t a8, uint8_t a9, uint8_t a10, uint8_t a11, uint8_t a12, uint8_t a13, uint8_t a14, uint8_t a15, uint8_t a16, uint8_t a17, uint8_t a18, uint8_t a19, uint8_t a20, uint8_t a21, uint8_t a22, uint8_t a23, uint8_t a24, uint8_t a25, uint8_t a26, uint8_t a27, uint8_t a28, uint8_t a29, uint8_t a30, uint8_t a31, uint8_t a32, uint8_t a33, uint8_t a34, uint8_t a35, uint8_t a36, uint8_t a37, uint8_t a38, uint8_t a39, uint8_t a40, uint8_t a41, uint8_t a42, uint8_t a43, uint8_t a44, uint8_t a45, uint8_t a46, uint8_t a47, uint8_t a48, uint8_t a49, uint8_t a50, uint8_t a51, uint8_t a52, uint8_t a53, uint8_t a54, uint8_t a55, uint8_t a56, uint8_t a57, uint8_t a58, uint8_t a59, uint8_t a60, uint8_t a61, uint8_t a62, uint8_t a63) { + return _mm512_set_epi64(uint64_t(a7) + (uint64_t(a6) << 8) + (uint64_t(a5) << 16) + (uint64_t(a4) << 24) + (uint64_t(a3) << 32) + (uint64_t(a2) << 40) + (uint64_t(a1) << 48) + (uint64_t(a0) << 56), + uint64_t(a15) + (uint64_t(a14) << 8) + (uint64_t(a13) << 16) + (uint64_t(a12) << 24) + (uint64_t(a11) << 32) + (uint64_t(a10) << 40) + (uint64_t(a9) << 48) + (uint64_t(a8) << 56), + uint64_t(a23) + (uint64_t(a22) << 8) + (uint64_t(a21) << 16) + (uint64_t(a20) << 24) + (uint64_t(a19) << 32) + (uint64_t(a18) << 40) + (uint64_t(a17) << 48) + (uint64_t(a16) << 56), + uint64_t(a31) + (uint64_t(a30) << 8) + (uint64_t(a29) << 16) + (uint64_t(a28) << 24) + (uint64_t(a27) << 32) + (uint64_t(a26) << 40) + (uint64_t(a25) << 48) + (uint64_t(a24) << 56), + uint64_t(a39) + (uint64_t(a38) << 8) + (uint64_t(a37) << 16) + (uint64_t(a36) << 24) + (uint64_t(a35) << 32) + (uint64_t(a34) << 40) + (uint64_t(a33) << 48) + (uint64_t(a32) << 56), + uint64_t(a47) + (uint64_t(a46) << 8) + (uint64_t(a45) << 16) + (uint64_t(a44) << 24) + (uint64_t(a43) << 32) + (uint64_t(a42) << 40) + (uint64_t(a41) << 48) + (uint64_t(a40) << 56), + uint64_t(a55) + (uint64_t(a54) << 8) + (uint64_t(a53) << 16) + (uint64_t(a52) << 24) + (uint64_t(a51) << 32) + (uint64_t(a50) << 40) + (uint64_t(a49) << 48) + (uint64_t(a48) << 56), + uint64_t(a63) + (uint64_t(a62) << 8) + (uint64_t(a61) << 16) + (uint64_t(a60) << 24) + (uint64_t(a59) << 32) + (uint64_t(a58) << 40) + (uint64_t(a57) << 48) + (uint64_t(a56) << 56)); +} +#endif // SIMDJSON_GCC8 - template - simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; - template - simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; -}; -template -simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { - logger::log_start(); - // - // Start the document - // - if (at_eof()) { return EMPTY; } - log_start_value("document"); - SIMDJSON_TRY( visitor.visit_document_start(*this) ); +namespace simdjson { +namespace icelake { +namespace { +namespace simd { + + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m512i value; + + // Zero constructor + simdjson_inline base() : value{__m512i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m512i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m512i&() const { return this->value; } + simdjson_inline operator __m512i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm512_or_si512(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm512_and_si512(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm512_xor_si512(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm512_andnot_si512(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; - // - // Read first value - // - { - auto value = advance(); + // Forward-declared so they can be used by splat and friends. + template + struct simd8; - // Make sure the outer object or array is closed before continuing; otherwise, there are ways we - // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 - if (!STREAMING) { - switch (*value) { - case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; - case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; - } - } + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m512i _value) : base>(_value) {} + + friend simdjson_really_inline uint64_t operator==(const simd8 lhs, const simd8 rhs) { + return _mm512_cmpeq_epi8_mask(lhs, rhs); } - } - goto document_end; -// -// Object parser states -// -object_begin: - log_start_value("object"); - depth++; - if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } - dom_parser.is_array[depth] = false; - SIMDJSON_TRY( visitor.visit_object_start(*this) ); + static const int SIZE = sizeof(base::value); - { - auto key = advance(); - if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } - SIMDJSON_TRY( visitor.increment_count(*this) ); - SIMDJSON_TRY( visitor.visit_key(*this, key) ); - } + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + // workaround for compilers unable to figure out that 16 - N is a constant (GCC 8) + constexpr int shift = 16 - N; + return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift); + } + }; -object_field: - if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } - { - auto value = advance(); - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm512_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m512i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + simdjson_inline bool any() const { return !!_mm512_test_epi8_mask (*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm512_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm512_setzero_si512(); } + static simdjson_inline simd8 load(const T values[64]) { + return _mm512_loadu_si512(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); } - } -object_continue: - switch (*advance()) { - case ',': - SIMDJSON_TRY( visitor.increment_count(*this) ); - { - auto key = advance(); - if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } - SIMDJSON_TRY( visitor.visit_key(*this, key) ); - } - goto object_field; - case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; - default: log_error("No comma between object fields"); return TAPE_ERROR; - } + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m512i _value) : base8(_value) {} -scope_end: - depth--; - if (depth == 0) { goto document_end; } - if (dom_parser.is_array[depth]) { goto array_continue; } - goto object_continue; + // Store to array + simdjson_inline void store(T dst[64]) const { return _mm512_storeu_si512(reinterpret_cast<__m512i *>(dst), *this); } -// -// Array parser states -// -array_begin: - log_start_value("array"); - depth++; - if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } - dom_parser.is_array[depth] = true; - SIMDJSON_TRY( visitor.visit_array_start(*this) ); - SIMDJSON_TRY( visitor.increment_count(*this) ); + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm512_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm512_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } -array_value: - { - auto value = advance(); - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm512_shuffle_epi8(lookup_table, *this); } - } -array_continue: - switch (*advance()) { - case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; - case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; - default: log_error("Missing comma between array values"); return TAPE_ERROR; - } + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint64_t mask, L * output) const { + _mm512_mask_compressstoreu_epi8 (output,~mask,*this); + } -document_end: - log_end_value("document"); - SIMDJSON_TRY( visitor.visit_document_end(*this) ); + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; - dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31, + int8_t v32, int8_t v33, int8_t v34, int8_t v35, int8_t v36, int8_t v37, int8_t v38, int8_t v39, + int8_t v40, int8_t v41, int8_t v42, int8_t v43, int8_t v44, int8_t v45, int8_t v46, int8_t v47, + int8_t v48, int8_t v49, int8_t v50, int8_t v51, int8_t v52, int8_t v53, int8_t v54, int8_t v55, + int8_t v56, int8_t v57, int8_t v58, int8_t v59, int8_t v60, int8_t v61, int8_t v62, int8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } - // If we didn't make it to the end, it's an error - if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { - log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); - return TAPE_ERROR; - } + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epi8(*this, other); } - return SUCCESS; + simdjson_inline simd8 operator>(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(*this, other),_mm512_set1_epi8(uint8_t(0x80))); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(other, *this),_mm512_set1_epi8(uint8_t(0x80))); } + }; -} // walk_document() + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31, + uint8_t v32, uint8_t v33, uint8_t v34, uint8_t v35, uint8_t v36, uint8_t v37, uint8_t v38, uint8_t v39, + uint8_t v40, uint8_t v41, uint8_t v42, uint8_t v43, uint8_t v44, uint8_t v45, uint8_t v46, uint8_t v47, + uint8_t v48, uint8_t v49, uint8_t v50, uint8_t v51, uint8_t v52, uint8_t v53, uint8_t v54, uint8_t v55, + uint8_t v56, uint8_t v57, uint8_t v58, uint8_t v59, uint8_t v60, uint8_t v61, uint8_t v62, uint8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } -simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) - : buf{_dom_parser.buf}, - next_structural{&_dom_parser.structural_indexes[start_structural_index]}, - dom_parser{_dom_parser} { -} + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm512_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm512_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline uint64_t operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline uint64_t operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return _mm512_mask_blend_epi8(*this == uint8_t(0), _mm512_set1_epi8(0), _mm512_set1_epi8(-1)); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + + simdjson_inline bool is_ascii() const { return _mm512_movepi8_mask(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { + return !_mm512_test_epi8_mask(*this, *this); + } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return !_mm512_test_epi8_mask(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm512_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm512_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline uint64_t get_bit() const { return _mm512_movepi8_mask(_mm512_slli_epi16(*this, 7-N)); } + }; -simdjson_inline const uint8_t *json_iterator::peek() const noexcept { - return &buf[*(next_structural)]; -} -simdjson_inline const uint8_t *json_iterator::advance() noexcept { - return &buf[*(next_structural++)]; -} -simdjson_inline size_t json_iterator::remaining_len() const noexcept { - return dom_parser.len - *(next_structural-1); -} + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 1, "Icelake kernel should use one register per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const simd8 chunk0) : chunks{chunk0} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(mask, output); + return 64 - count_ones(mask); + } -simdjson_inline bool json_iterator::at_eof() const noexcept { - return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; -} -simdjson_inline bool json_iterator::at_beginning() const noexcept { - return next_structural == dom_parser.structural_indexes.get(); -} -simdjson_inline uint8_t json_iterator::last_structural() const noexcept { - return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; -} + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + } -simdjson_inline void json_iterator::log_value(const char *type) const noexcept { - logger::log_line(*this, "", type, ""); -} + simdjson_inline simd8 reduce_or() const { + return this->chunks[0]; + } -simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { - logger::log_line(*this, "+", type, ""); - if (logger::LOG_ENABLED) { logger::log_depth++; } -} + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask + ); + } -simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { - if (logger::LOG_ENABLED) { logger::log_depth--; } - logger::log_line(*this, "-", type, ""); -} + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] == mask; + } -simdjson_inline void json_iterator::log_error(const char *error) const noexcept { - logger::log_line(*this, "", "ERROR", error); -} + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return this->chunks[0] == other.chunks[0]; + } -template -simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { - switch (*value) { - case '"': return visitor.visit_root_string(*this, value); - case 't': return visitor.visit_root_true_atom(*this, value); - case 'f': return visitor.visit_root_false_atom(*this, value); - case 'n': return visitor.visit_root_null_atom(*this, value); - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return visitor.visit_root_number(*this, value); - default: - log_error("Document starts with a non-value character"); - return TAPE_ERROR; - } -} -template -simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { - switch (*value) { - case '"': return visitor.visit_string(*this, value); - case 't': return visitor.visit_true_atom(*this, value); - case 'f': return visitor.visit_false_atom(*this, value); - case 'n': return visitor.visit_null_atom(*this, value); - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return visitor.visit_number(*this, value); - default: - log_error("Non-value found when value was expected!"); - return TAPE_ERROR; - } -} + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] <= mask; + } + }; // struct simd8x64 + +} // namespace simd -} // namespace stage2 } // unnamed namespace -} // namespace arm64 +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/tape_writer.h */ + +#endif // SIMDJSON_ICELAKE_SIMD_H +/* end file simdjson/icelake/simd.h */ +/* including simdjson/icelake/stringparsing_defs.h: #include "simdjson/icelake/stringparsing_defs.h" */ +/* begin file simdjson/icelake/stringparsing_defs.h */ +#ifndef SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H +#define SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace arm64 { +namespace icelake { namespace { -namespace stage2 { - -struct tape_writer { - /** The next place to write to tape */ - uint64_t *next_tape_loc; - /** Write a signed 64-bit value to tape. */ - simdjson_inline void append_s64(int64_t value) noexcept; +using namespace simd; - /** Write an unsigned 64-bit value to tape. */ - simdjson_inline void append_u64(uint64_t value) noexcept; +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint64_t bs_bits; + uint64_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast(v == '\\'), // bs_bits + static_cast(v == '"'), // quote_bits + }; +} - /** Write a double value to tape. */ - simdjson_inline void append_double(double value) noexcept; +} // unnamed namespace +} // namespace icelake +} // namespace simdjson - /** - * Append a tape entry (an 8-bit type,and 56 bits worth of value). - */ - simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; +#endif // SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H +/* end file simdjson/icelake/stringparsing_defs.h */ +/* including simdjson/icelake/numberparsing_defs.h: #include "simdjson/icelake/numberparsing_defs.h" */ +/* begin file simdjson/icelake/numberparsing_defs.h */ +#ifndef SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H +#define SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H - /** - * Skip the current tape entry without writing. - * - * Used to skip the start of the container, since we'll come back later to fill it in when the - * container ends. - */ - simdjson_inline void skip() noexcept; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - /** - * Skip the number of tape entries necessary to write a large u64 or i64. - */ - simdjson_inline void skip_large_integer() noexcept; +namespace simdjson { +namespace icelake { +namespace numberparsing { + +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} - /** - * Skip the number of tape entries necessary to write a double. - */ - simdjson_inline void skip_double() noexcept; +} // namespace numberparsing +} // namespace icelake +} // namespace simdjson - /** - * Write a value to a known location on tape. - * - * Used to go back and write out the start of a container after the container ends. - */ - simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; +#define SIMDJSON_SWAR_NUMBER_PARSING 1 -private: - /** - * Append both the tape entry, and a supplementary value following it. Used for types that need - * all 64 bits, such as double and uint64_t. - */ - template - simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; -}; // struct number_writer +#endif // SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H +/* end file simdjson/icelake/numberparsing_defs.h */ +/* end file simdjson/icelake/begin.h */ +/* including generic/amalgamated.h for icelake: #include */ +/* begin file generic/amalgamated.h for icelake */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_SRC_GENERIC_DEPENDENCIES_H) +#error generic/dependencies.h must be included before generic/amalgamated.h! +#endif -simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { - append2(0, value, internal::tape_type::INT64); -} +/* including generic/base.h for icelake: #include */ +/* begin file generic/base.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_BASE_H -simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { - append(0, internal::tape_type::UINT64); - *next_tape_loc = value; - next_tape_loc++; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -/** Write a double value to tape. */ -simdjson_inline void tape_writer::append_double(double value) noexcept { - append2(0, value, internal::tape_type::DOUBLE); -} +namespace simdjson { +namespace icelake { +namespace { -simdjson_inline void tape_writer::skip() noexcept { - next_tape_loc++; -} +struct json_character_block; -simdjson_inline void tape_writer::skip_large_integer() noexcept { - next_tape_loc += 2; -} +} // unnamed namespace +} // namespace icelake +} // namespace simdjson -simdjson_inline void tape_writer::skip_double() noexcept { - next_tape_loc += 2; -} +#endif // SIMDJSON_SRC_GENERIC_BASE_H +/* end file generic/base.h for icelake */ +/* including generic/dom_parser_implementation.h for icelake: #include */ +/* begin file generic/dom_parser_implementation.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H -simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { - *next_tape_loc = val | ((uint64_t(char(t))) << 56); - next_tape_loc++; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -template -simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { - append(val, t); - static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); - memcpy(next_tape_loc, &val2, sizeof(val2)); - next_tape_loc++; -} +// Interface a dom parser implementation must fulfill +namespace simdjson { +namespace icelake { +namespace { -simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { - tape_loc = val | ((uint64_t(char(t))) << 56); -} +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3); +simdjson_inline bool is_ascii(const simd8x64& input); -} // namespace stage2 } // unnamed namespace -} // namespace arm64 +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage2/tape_writer.h */ + +#endif // SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file generic/dom_parser_implementation.h for icelake */ +/* including generic/json_character_block.h for icelake: #include */ +/* begin file generic/json_character_block.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace arm64 { +namespace icelake { namespace { -namespace stage2 { -struct tape_builder { - template - simdjson_warn_unused static simdjson_inline error_code parse_document( - dom_parser_implementation &dom_parser, - dom::document &doc) noexcept; +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); - /** Called when a non-empty document starts. */ - simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; - /** Called when a non-empty document ends without error. */ - simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } + simdjson_inline uint64_t op() const noexcept { return _op; } + simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } - /** Called when a non-empty array starts. */ - simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; - /** Called when a non-empty array ends. */ - simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; - /** Called when an empty array is found. */ - simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + uint64_t _whitespace; + uint64_t _op; +}; - /** Called when a non-empty object starts. */ - simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; - /** - * Called when a key in a field is encountered. - * - * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array - * will be called after this with the field value. - */ - simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; - /** Called when a non-empty object ends. */ - simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; - /** Called when an empty object is found. */ - simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; +} // unnamed namespace +} // namespace icelake +} // namespace simdjson - /** - * Called when a string, number, boolean or null is found. - */ - simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; - /** - * Called when a string, number, boolean or null is found at the top level of a document (i.e. - * when there is no array or object and the entire document is a single string, number, boolean or - * null. - * - * This is separate from primitive() because simdjson's normal primitive parsing routines assume - * there is at least one more token after the value, which is only true in an array or object. - */ - simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; +#endif // SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H +/* end file generic/json_character_block.h for icelake */ +/* end file generic/amalgamated.h for icelake */ +/* including generic/stage1/amalgamated.h for icelake: #include */ +/* begin file generic/stage1/amalgamated.h for icelake */ +// Stuff other things depend on +/* including generic/stage1/base.h for icelake: #include */ +/* begin file generic/stage1/base.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { - simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; +class bit_indexer; +template +struct buf_block_reader; +struct json_block; +class json_minifier; +class json_scanner; +struct json_string_block; +class json_string_scanner; +class json_structural_indexer; - /** Called each time a new field or element in an array or object is found. */ - simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; +} // namespace stage1 - /** Next location to write to tape */ - tape_writer tape; -private: - /** Next write location in the string buf for stage 2 parsing */ - uint8_t *current_string_buf_loc; +namespace utf8_validation { +struct utf8_checker; +} // namespace utf8_validation - simdjson_inline tape_builder(dom::document &doc) noexcept; +using utf8_validation::utf8_checker; - simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; - simdjson_inline void start_container(json_iterator &iter) noexcept; - simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; - simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; - simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; - simdjson_inline void on_end_string(uint8_t *dst) noexcept; -}; // class tape_builder +} // unnamed namespace +} // namespace icelake +} // namespace simdjson -template -simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( - dom_parser_implementation &dom_parser, - dom::document &doc) noexcept { - dom_parser.doc = &doc; - json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); - tape_builder builder(doc); - return iter.walk_document(builder); -} +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BASE_H +/* end file generic/stage1/base.h for icelake */ +/* including generic/stage1/buf_block_reader.h for icelake: #include */ +/* begin file generic/stage1/buf_block_reader.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { - return iter.visit_root_primitive(*this, value); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { - return iter.visit_primitive(*this, value); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { - return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { - return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} +#include -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { - return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { - return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { - constexpr uint32_t start_tape_index = 0; - tape.append(start_tape_index, internal::tape_type::ROOT); - tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); - return SUCCESS; +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { + +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { - return visit_string(iter, key, true); + +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; } -simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { - iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 - return SUCCESS; +simdjson_unused static char * format_input_text(const simd8x64& in, uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] <= ' ') { buf[i] = '_'; } + if (!(mask & (size_t(1) << i))) { buf[i] = ' '; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; } -simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} - -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { - iter.log_value(key ? "key" : "string"); - uint8_t *dst = on_start_string(iter); - dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. - if (dst == nullptr) { - iter.log_error("Invalid escape in string"); - return STRING_ERROR; +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; } - on_end_string(dst); - return SUCCESS; + buf[64] = '\0'; + return buf; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { - return visit_string(iter, value); -} +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("number"); - return numberparsing::parse_number(value, tape); -} +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { - // - // We need to make a copy to make sure that the string is space terminated. - // This is not about padding the input, which should already padded up - // to len + SIMDJSON_PADDING. However, we have no control at this stage - // on how the padding was done. What if the input string was padded with nulls? - // It is quite common for an input string to have an extra null character (C string). - // We do not want to allow 9\0 (where \0 is the null character) inside a JSON - // document, but the string "9\0" by itself is fine. So we make a copy and - // pad the input with spaces when we know that there is just one input element. - // This copy is relatively expensive, but it will almost never be called in - // practice unless you are in the strange scenario where you have many JSON - // documents made of single atoms. - // - std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); - if (copy.get() == nullptr) { return MEMALLOC; } - std::memcpy(copy.get(), value, iter.remaining_len()); - std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); - error_code error = visit_number(iter, copy.get()); - return error; +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("true"); - if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } - tape.append(0, internal::tape_type::TRUE_VALUE); - return SUCCESS; +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("true"); - if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } - tape.append(0, internal::tape_type::TRUE_VALUE); - return SUCCESS; +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("false"); - if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } - tape.append(0, internal::tape_type::FALSE_VALUE); - return SUCCESS; +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("false"); - if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } - tape.append(0, internal::tape_type::FALSE_VALUE); - return SUCCESS; -} +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("null"); - if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } - tape.append(0, internal::tape_type::NULL_VALUE); - return SUCCESS; -} +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H +/* end file generic/stage1/buf_block_reader.h for icelake */ +/* including generic/stage1/json_escape_scanner.h for icelake: #include */ +/* begin file generic/stage1/json_escape_scanner.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("null"); - if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } - tape.append(0, internal::tape_type::NULL_VALUE); - return SUCCESS; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -// private: +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { -simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { - return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); -} +/** + * Scans for escape characters in JSON, taking care with multiple backslashes (\\n vs. \n). + */ +struct json_escape_scanner { + /** The actual escape characters (the backslashes themselves). */ + uint64_t next_is_escaped = 0ULL; -simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { - auto start_index = next_tape_index(iter); - tape.append(start_index+2, start); - tape.append(start_index, end); - return SUCCESS; -} + struct escaped_and_escape { + /** + * Mask of escaped characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 0100100010100101000 + * n \ \ n \ \ + * ``` + */ + uint64_t escaped; + /** + * Mask of escape characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 1001000101001010001 + * \ \ \ \ \ \ \ + * ``` + */ + uint64_t escape; + }; -simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { - iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); - iter.dom_parser.open_containers[iter.depth].count = 0; - tape.skip(); // We don't actually *write* the start element until the end. -} + /** + * Get a mask of both escape and escaped characters (the characters following a backslash). + * + * @param potential_escape A mask of the character that can escape others (but could be + * escaped itself). e.g. block.eq('\\') + */ + simdjson_really_inline escaped_and_escape next(uint64_t backslash) noexcept { -simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { - // Write the ending tape element, pointing at the start location - const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; - tape.append(start_tape_index, end); - // Write the start tape element, pointing at the end location (and including count) - // count can overflow if it exceeds 24 bits... so we saturate - // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). - const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; - const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; - tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); - return SUCCESS; -} +#if !SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT + if (!backslash) { return {next_escaped_without_backslashes(), 0}; } +#endif -simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { - // we advance the point, accounting for the fact that we have a NULL termination - tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); - return current_string_buf_loc + sizeof(uint32_t); -} + // | | Mask (shows characters instead of 1's) | Depth | Instructions | + // |--------------------------------|----------------------------------------|-------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | | | + // | | ` even odd even odd odd` | | | + // | potential_escape | ` \ \\\ \\\ \\\\ \\\\ \\\` | 1 | 1 (backslash & ~first_is_escaped) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 5 | 5 (next_escape_and_terminal_code()) + // | escaped | `\ \ n \ n \ \ \ \ \ ` X | 6 | 7 (escape_and_terminal_code ^ (potential_escape | first_is_escaped)) + // | escape | ` \ \ \ \ \ \ \ \ \ \` | 6 | 8 (escape_and_terminal_code & backslash) + // | first_is_escaped | `\ ` | 7 (*) | 9 (escape >> 63) () + // (*) this is not needed until the next iteration + uint64_t escape_and_terminal_code = next_escape_and_terminal_code(backslash & ~this->next_is_escaped); + uint64_t escaped = escape_and_terminal_code ^ (backslash | this->next_is_escaped); + uint64_t escape = escape_and_terminal_code & backslash; + this->next_is_escaped = escape >> 63; + return {escaped, escape}; + } -simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { - uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); - // TODO check for overflow in case someone has a crazy string (>=4GB?) - // But only add the overflow check when the document itself exceeds 4GB - // Currently unneeded because we refuse to parse docs larger or equal to 4GB. - memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); - // NULL termination is still handy if you expect all your strings to - // be NULL terminated? It comes at a small cost - *dst = 0; - current_string_buf_loc = dst + 1; -} +private: + static constexpr const uint64_t ODD_BITS = 0xAAAAAAAAAAAAAAAAULL; -} // namespace stage2 + simdjson_really_inline uint64_t next_escaped_without_backslashes() noexcept { + uint64_t escaped = this->next_is_escaped; + this->next_is_escaped = 0; + return escaped; + } + + /** + * Returns a mask of the next escape characters (masking out escaped backslashes), along with + * any non-backslash escape codes. + * + * \n \\n \\\n \\\\n returns: + * \n \ \ \n \ \ + * 11 100 1011 10100 + * + * You are expected to mask out the first bit yourself if the previous block had a trailing + * escape. + * + * & the result with potential_escape to get just the escape characters. + * ^ the result with (potential_escape | first_is_escaped) to get escaped characters. + */ + static simdjson_really_inline uint64_t next_escape_and_terminal_code(uint64_t potential_escape) noexcept { + // If we were to just shift and mask out any odd bits, we'd actually get a *half* right answer: + // any even-aligned backslash runs would be correct! Odd-aligned backslash runs would be + // inverted (\\\ would be 010 instead of 101). + // + // ``` + // string: | ____\\\\_\\\\_____ | + // maybe_escaped | ODD | \ \ \ \ | + // even-aligned ^^^ ^^^^ odd-aligned + // ``` + // + // Taking that into account, our basic strategy is: + // + // 1. Use subtraction to produce a mask with 1's for even-aligned runs and 0's for + // odd-aligned runs. + // 2. XOR all odd bits, which masks out the odd bits in even-aligned runs, and brings IN the + // odd bits in odd-aligned runs. + // 3. & with backslash to clean up any stray bits. + // runs are set to 0, and then XORing with "odd": + // + // | | Mask (shows characters instead of 1's) | Instructions | + // |--------------------------------|----------------------------------------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | + // | | ` even odd even odd odd` | + // | maybe_escaped | ` n \\n \\n \\\_ \\\_ \\` X | 1 (potential_escape << 1) + // | maybe_escaped_and_odd | ` \n_ \\n _ \\\n_ _ \\\__ _\\\_ \\\` | 1 (maybe_escaped | odd) + // | even_series_codes_and_odd | ` n_\\\ _ n_ _\\\\ _ _ ` | 1 (maybe_escaped_and_odd - potential_escape) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 1 (^ odd) + // + + // Escaped characters are characters following an escape. + uint64_t maybe_escaped = potential_escape << 1; + + // To distinguish odd from even escape sequences, therefore, we turn on any *starting* + // escapes that are on an odd byte. (We actually bring in all odd bits, for speed.) + // - Odd runs of backslashes are 0000, and the code at the end ("n" in \n or \\n) is 1. + // - Odd runs of backslashes are 1111, and the code at the end ("n" in \n or \\n) is 0. + // - All other odd bytes are 1, and even bytes are 0. + uint64_t maybe_escaped_and_odd_bits = maybe_escaped | ODD_BITS; + uint64_t even_series_codes_and_odd_bits = maybe_escaped_and_odd_bits - potential_escape; + + // Now we flip all odd bytes back with xor. This: + // - Makes odd runs of backslashes go from 0000 to 1010 + // - Makes even runs of backslashes go from 1111 to 1010 + // - Sets actually-escaped codes to 1 (the n in \n and \\n: \n = 11, \\n = 100) + // - Resets all other bytes to 0 + return even_series_codes_and_odd_bits ^ ODD_BITS; + } +}; + +} // namespace stage1 } // unnamed namespace -} // namespace arm64 +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage2/tape_builder.h */ -// -// Implementation-specific overrides -// +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_escape_scanner.h for icelake */ +/* including generic/stage1/json_string_scanner.h for icelake: #include */ +/* begin file generic/stage1/json_string_scanner.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace arm64 { +namespace icelake { namespace { namespace stage1 { -simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { - // On ARM, we don't short-circuit this if there are no backslashes, because the branch gives us no - // benefit and therefore makes things worse. - // if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } - return find_escaped_branchless(backslash); +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_really_inline json_string_block(uint64_t escaped, uint64_t quote, uint64_t in_string) : + _escaped(escaped), _quote(quote), _in_string(in_string) {} + + // Escaped characters (characters following an escape() character) + simdjson_really_inline uint64_t escaped() const { return _escaped; } + // Real (non-backslashed) quotes + simdjson_really_inline uint64_t quote() const { return _quote; } + // Only characters inside the string (not including the quotes) + simdjson_really_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_really_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_really_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_really_inline uint64_t string_tail() const { return _in_string ^ _quote; } + + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-escaped ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; + +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_really_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_really_inline error_code finish(); + +private: + // Scans for escape characters + json_escape_scanner escape_scanner{}; + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; +}; + +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_really_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = escape_scanner.next(backslash).escaped; + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block(escaped, quote, in_string); +} + +simdjson_really_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; } } // namespace stage1 } // unnamed namespace +} // namespace icelake +} // namespace simdjson -simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { - return arm64::stage1::json_minifier::minify<64>(buf, len, dst, dst_len); -} - -simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { - this->buf = _buf; - this->len = _len; - return arm64::stage1::json_structural_indexer::index<64>(buf, len, *this, streaming); -} - -simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { - return arm64::stage1::generic_validate_utf8(buf,len); -} +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_string_scanner.h for icelake */ +/* including generic/stage1/utf8_lookup4_algorithm.h for icelake: #include */ +/* begin file generic/stage1/utf8_lookup4_algorithm.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H -simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} +namespace simdjson { +namespace icelake { +namespace { +namespace utf8_validation { -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept { - return arm64::stringparsing::parse_string(src, dst, allow_replacement); -} +using namespace simd; -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { - return arm64::stringparsing::parse_wobbly_string(src, dst); -} + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ -simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { - auto error = stage1(_buf, _len, stage1_mode::regular); - if (error) { return error; } - return stage2(_doc); -} + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, -} // namespace arm64 -} // namespace simdjson + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, -/* begin file include/simdjson/arm64/end.h */ -/* end file include/simdjson/arm64/end.h */ -/* end file src/arm64/dom_parser_implementation.cpp */ -#endif -#if SIMDJSON_IMPLEMENTATION_FALLBACK -/* begin file src/fallback/implementation.cpp */ -/* begin file include/simdjson/fallback/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "fallback" -// #define SIMDJSON_IMPLEMENTATION fallback -/* end file include/simdjson/fallback/begin.h */ -namespace simdjson { -namespace fallback { + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, -simdjson_warn_unused error_code implementation::create_dom_parser_implementation( - size_t capacity, - size_t max_depth, - std::unique_ptr& dst -) const noexcept { - dst.reset( new (std::nothrow) dom_parser_implementation() ); - if (!dst) { return MEMALLOC; } - if (auto err = dst->set_capacity(capacity)) - return err; - if (auto err = dst->set_max_depth(max_depth)) - return err; - return SUCCESS; -} + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, -} // namespace fallback -} // namespace simdjson + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } -/* begin file include/simdjson/fallback/end.h */ -/* end file include/simdjson/fallback/end.h */ -/* end file src/fallback/implementation.cpp */ -/* begin file src/fallback/dom_parser_implementation.cpp */ -/* begin file include/simdjson/fallback/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "fallback" -// #define SIMDJSON_IMPLEMENTATION fallback -/* end file include/simdjson/fallback/begin.h */ + // + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. + // + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } -// -// Stage 1 -// -/* begin file src/generic/stage1/find_next_document_index.h */ -namespace simdjson { -namespace fallback { -namespace { + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; -/** - * This algorithm is used to quickly identify the last structural position that - * makes up a complete document. - * - * It does this by going backwards and finding the last *document boundary* (a - * place where one value follows another without a comma between them). If the - * last document (the characters after the boundary) has an equal number of - * start and end brackets, it is considered complete. - * - * Simply put, we iterate over the structural characters, starting from - * the end. We consider that we found the end of a JSON document when the - * first element of the pair is NOT one of these characters: '{' '[' ':' ',' - * and when the second element is NOT one of these characters: '}' ']' ':' ','. - * - * This simple comparison works most of the time, but it does not cover cases - * where the batch's structural indexes contain a perfect amount of documents. - * In such a case, we do not have access to the structural index which follows - * the last document, therefore, we do not have access to the second element in - * the pair, and that means we cannot identify the last document. To fix this - * issue, we keep a count of the open and closed curly/square braces we found - * while searching for the pair. When we find a pair AND the count of open and - * closed curly/square braces is the same, we know that we just passed a - * complete document, therefore the last json buffer location is the end of the - * batch. - */ -simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { - // Variant: do not count separately, just figure out depth - if(parser.n_structural_indexes == 0) { return 0; } - auto arr_cnt = 0; - auto obj_cnt = 0; - for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { - auto idxb = parser.structural_indexes[i]; - switch (parser.buf[idxb]) { - case ':': - case ',': - continue; - case '}': - obj_cnt--; - continue; - case ']': - arr_cnt--; - continue; - case '{': - obj_cnt++; - break; - case '[': - arr_cnt++; - break; + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); } - auto idxa = parser.structural_indexes[i - 1]; - switch (parser.buf[idxa]) { - case '{': - case '[': - case ':': - case ',': - continue; + + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; } - // Last document is complete, so the next document will appear after! - if (!arr_cnt && !obj_cnt) { - return parser.n_structural_indexes; + +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } } - // Last document is incomplete; mark the document at i + 1 as the next one - return i; - } - // If we made it to the end, we want to finish counting to see if we have a full document. - switch (parser.buf[parser.structural_indexes[0]]) { - case '}': - obj_cnt--; - break; - case ']': - arr_cnt--; - break; - case '{': - obj_cnt++; - break; - case '[': - arr_cnt++; - break; - } - if (!arr_cnt && !obj_cnt) { - // We have a complete document. - return parser.n_structural_indexes; - } - return 0; -} + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation } // unnamed namespace -} // namespace fallback +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/find_next_document_index.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H +/* end file generic/stage1/utf8_lookup4_algorithm.h for icelake */ +/* including generic/stage1/json_scanner.h for icelake: #include */ +/* begin file generic/stage1/json_scanner.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace fallback { +namespace icelake { namespace { namespace stage1 { -class structural_scanner { +/** + * A block of scanned json, with information on operators and scalars. + * + * We seek to identify pseudo-structural characters. Anything that is inside + * a string must be omitted (hence & ~_string.string_tail()). + * Otherwise, pseudo-structural characters come in two forms. + * 1. We have the structural characters ([,],{,},:, comma). The + * term 'structural character' is from the JSON RFC. + * 2. We have the 'scalar pseudo-structural characters'. + * Scalars are quotes, and any character except structural characters and white space. + * + * To identify the scalar pseudo-structural characters, we must look at what comes + * before them: it must be a space, a quote or a structural characters. + * Starting with simdjson v0.3, we identify them by + * negation: we identify everything that is followed by a non-quote scalar, + * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. + */ +struct json_block { public: + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : + _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} -simdjson_inline structural_scanner(dom_parser_implementation &_parser, stage1_mode _partial) - : buf{_parser.buf}, - next_structural_index{_parser.structural_indexes.get()}, - parser{_parser}, - len{static_cast(_parser.len)}, - partial{_partial} { -} - -simdjson_inline void add_structural() { - *next_structural_index = idx; - next_structural_index++; -} + /** + * The start of structurals. + * In simdjson prior to v0.3, these were called the pseudo-structural characters. + **/ + simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } + /** All JSON whitespace (i.e. not in a string) */ + simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } -simdjson_inline bool is_continuation(uint8_t c) { - return (c & 0xc0) == 0x80; -} + // Helpers -simdjson_inline void validate_utf8_character() { - // Continuation - if (simdjson_unlikely((buf[idx] & 0x40) == 0)) { - // extra continuation - error = UTF8_ERROR; - idx++; - return; - } + /** Whether the given characters are inside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } + /** Whether the given characters are outside a string (only works on non-quotes) */ + simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } - // 2-byte - if ((buf[idx] & 0x20) == 0) { - // missing continuation - if (simdjson_unlikely(idx+1 > len || !is_continuation(buf[idx+1]))) { - if (idx+1 > len && is_streaming(partial)) { idx = len; return; } - error = UTF8_ERROR; - idx++; - return; - } - // overlong: 1100000_ 10______ - if (buf[idx] <= 0xc1) { error = UTF8_ERROR; } - idx += 2; - return; - } + // string and escape characters + json_string_block _string; + // whitespace, structural characters ('operators'), scalars + json_character_block _characters; + // whether the previous character was a scalar + uint64_t _follows_potential_nonquote_scalar; +private: + // Potential structurals (i.e. disregarding strings) - // 3-byte - if ((buf[idx] & 0x10) == 0) { - // missing continuation - if (simdjson_unlikely(idx+2 > len || !is_continuation(buf[idx+1]) || !is_continuation(buf[idx+2]))) { - if (idx+2 > len && is_streaming(partial)) { idx = len; return; } - error = UTF8_ERROR; - idx++; - return; - } - // overlong: 11100000 100_____ ________ - if (buf[idx] == 0xe0 && buf[idx+1] <= 0x9f) { error = UTF8_ERROR; } - // surrogates: U+D800-U+DFFF 11101101 101_____ - if (buf[idx] == 0xed && buf[idx+1] >= 0xa0) { error = UTF8_ERROR; } - idx += 3; - return; + /** + * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". + * They may reside inside a string. + **/ + simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } + /** + * The start of non-operator runs, like 123, true and "abc". + * It main reside inside a string. + **/ + simdjson_inline uint64_t potential_scalar_start() const noexcept { + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space + // then we know that it is irrelevant structurally. + return _characters.scalar() & ~follows_potential_scalar(); } - - // 4-byte - // missing continuation - if (simdjson_unlikely(idx+3 > len || !is_continuation(buf[idx+1]) || !is_continuation(buf[idx+2]) || !is_continuation(buf[idx+3]))) { - if (idx+2 > len && is_streaming(partial)) { idx = len; return; } - error = UTF8_ERROR; - idx++; - return; + /** + * Whether the given character is immediately after a non-operator like 123, true. + * The characters following a quote are not included. + */ + simdjson_inline uint64_t follows_potential_scalar() const noexcept { + // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character + // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a + // white space. + // It is understood that within quoted region, anything at all could be marked (irrelevant). + return _follows_potential_nonquote_scalar; } - // overlong: 11110000 1000____ ________ ________ - if (buf[idx] == 0xf0 && buf[idx+1] <= 0x8f) { error = UTF8_ERROR; } - // too large: > U+10FFFF: - // 11110100 (1001|101_)____ - // 1111(1___|011_|0101) 10______ - // also includes 5, 6, 7 and 8 byte characters: - // 11111___ - if (buf[idx] == 0xf4 && buf[idx+1] >= 0x90) { error = UTF8_ERROR; } - if (buf[idx] >= 0xf5) { error = UTF8_ERROR; } - idx += 4; -} +}; -// Returns true if the string is unclosed. -simdjson_inline bool validate_string() { - idx++; // skip first quote - while (idx < len && buf[idx] != '"') { - if (buf[idx] == '\\') { - idx += 2; - } else if (simdjson_unlikely(buf[idx] & 0x80)) { - validate_utf8_character(); - } else { - if (buf[idx] < 0x20) { error = UNESCAPED_CHARS; } - idx++; - } - } - if (idx >= len) { return true; } - return false; -} +/** + * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. + * + * The scanner starts by calculating two distinct things: + * - string characters (taking \" into account) + * - structural characters or 'operators' ([]{},:, comma) + * and scalars (runs of non-operators like 123, true and "abc") + * + * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: + * in particular, the operator/scalar bit will find plenty of things that are actually part of + * strings. When we're done, json_block will fuse the two together by masking out tokens that are + * part of a string. + */ +class json_scanner { +public: + json_scanner() = default; + simdjson_inline json_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_inline error_code finish(); + +private: + // Whether the last character of the previous iteration is part of a scalar token + // (anything except whitespace or a structural character/'operator'). + uint64_t prev_scalar = 0ULL; + json_string_scanner string_scanner{}; +}; -simdjson_inline bool is_whitespace_or_operator(uint8_t c) { - switch (c) { - case '{': case '}': case '[': case ']': case ',': case ':': - case ' ': case '\r': case '\n': case '\t': - return true; - default: - return false; - } -} // -// Parse the entire input in STEP_SIZE-byte chunks. +// Check if the current character immediately follows a matching character. // -simdjson_inline error_code scan() { - bool unclosed_string = false; - for (;idx 0) { - if(parser.structural_indexes[0] == 0) { - // If the buffer is partial and we started at index 0 but the document is - // incomplete, it's too big to parse. - return CAPACITY; - } else { - // It is possible that the document could be parsed, we just had a lot - // of white space. - parser.n_structural_indexes = 0; - return EMPTY; - } - } - parser.n_structural_indexes = new_structural_indexes; - } else if(partial == stage1_mode::streaming_final) { - if(unclosed_string) { parser.n_structural_indexes--; } - // We truncate the input to the end of the last complete document (or zero). - // Because partial == stage1_mode::streaming_final, it means that we may - // silently ignore trailing garbage. Though it sounds bad, we do it - // deliberately because many people who have streams of JSON documents - // will truncate them for processing. E.g., imagine that you are uncompressing - // the data from a size file or receiving it in chunks from the network. You - // may not know where exactly the last document will be. Meanwhile the - // document_stream instances allow people to know the JSON documents they are - // parsing (see the iterator.source() method). - parser.n_structural_indexes = find_next_document_index(parser); - // We store the initial n_structural_indexes so that the client can see - // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, - // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, - // otherwise, it will copy some prior index. - parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; - // This next line is critical, do not change it unless you understand what you are - // doing. - parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); - if (parser.n_structural_indexes == 0) { return EMPTY; } - } else if(unclosed_string) { error = UNCLOSED_STRING; } - return error; +// For example, this checks for quotes with backslashes in front of them: +// +// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); +// +simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { + const uint64_t result = match << 1 | overflow; + overflow = match >> 63; + return result; } -private: - const uint8_t *buf; - uint32_t *next_structural_index; - dom_parser_implementation &parser; - uint32_t len; - uint32_t idx{0}; - error_code error{SUCCESS}; - stage1_mode partial; -}; // structural_scanner - -} // namespace stage1 -} // unnamed namespace +simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { + json_string_block strings = string_scanner.next(in); + // identifies the white-space and the structural characters + json_character_block characters = json_character_block::classify(in); + // The term "scalar" refers to anything except structural characters and white space + // (so letters, numbers, quotes). + // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // + // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) + // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential + // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we + // may need to add an extra check when parsing strings. + // + // Performance: there are many ways to skin this cat. + const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); + uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); +} -simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode partial) noexcept { - this->buf = _buf; - this->len = _len; - stage1::structural_scanner scanner(*this, partial); - return scanner.scan(); +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); } -// big table for the minifier -static uint8_t jump_table[256 * 3] = { - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, - 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, - 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, - 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, - 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, -}; +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson -simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { - size_t i = 0, pos = 0; - uint8_t quote = 0; - uint8_t nonescape = 1; +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H +/* end file generic/stage1/json_scanner.h for icelake */ - while (i < len) { - unsigned char c = buf[i]; - uint8_t *meta = jump_table + 3 * c; +// All other declarations +/* including generic/stage1/find_next_document_index.h for icelake: #include */ +/* begin file generic/stage1/find_next_document_index.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H - quote = quote ^ (meta[0] & nonescape); - dst[pos] = c; - pos += meta[2] | quote; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - i += 1; - nonescape = uint8_t(~nonescape) | (meta[1]); - } - dst_len = pos; // we intentionally do not work with a reference - // for fear of aliasing - return quote ? UNCLOSED_STRING : SUCCESS; -} +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { -// credit: based on code from Google Fuchsia (Apache Licensed) -simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { - const uint8_t *data = reinterpret_cast(buf); - uint64_t pos = 0; - uint32_t code_point = 0; - while (pos < len) { - // check of the next 8 bytes are ascii. - uint64_t next_pos = pos + 16; - if (next_pos <= len) { // if it is safe to read 8 more bytes, check that they are ascii - uint64_t v1; - memcpy(&v1, data + pos, sizeof(uint64_t)); - uint64_t v2; - memcpy(&v2, data + pos + sizeof(uint64_t), sizeof(uint64_t)); - uint64_t v{v1 | v2}; - if ((v & 0x8080808080808080) == 0) { - pos = next_pos; - continue; - } +/** + * This algorithm is used to quickly identify the last structural position that + * makes up a complete document. + * + * It does this by going backwards and finding the last *document boundary* (a + * place where one value follows another without a comma between them). If the + * last document (the characters after the boundary) has an equal number of + * start and end brackets, it is considered complete. + * + * Simply put, we iterate over the structural characters, starting from + * the end. We consider that we found the end of a JSON document when the + * first element of the pair is NOT one of these characters: '{' '[' ':' ',' + * and when the second element is NOT one of these characters: '}' ']' ':' ','. + * + * This simple comparison works most of the time, but it does not cover cases + * where the batch's structural indexes contain a perfect amount of documents. + * In such a case, we do not have access to the structural index which follows + * the last document, therefore, we do not have access to the second element in + * the pair, and that means we cannot identify the last document. To fix this + * issue, we keep a count of the open and closed curly/square braces we found + * while searching for the pair. When we find a pair AND the count of open and + * closed curly/square braces is the same, we know that we just passed a + * complete document, therefore the last json buffer location is the end of the + * batch. + */ +simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { + // Variant: do not count separately, just figure out depth + if(parser.n_structural_indexes == 0) { return 0; } + auto arr_cnt = 0; + auto obj_cnt = 0; + for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { + auto idxb = parser.structural_indexes[i]; + switch (parser.buf[idxb]) { + case ':': + case ',': + continue; + case '}': + obj_cnt--; + continue; + case ']': + arr_cnt--; + continue; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; } - unsigned char byte = data[pos]; - if (byte < 0x80) { - pos++; + auto idxa = parser.structural_indexes[i - 1]; + switch (parser.buf[idxa]) { + case '{': + case '[': + case ':': + case ',': continue; - } else if ((byte & 0xe0) == 0xc0) { - next_pos = pos + 2; - if (next_pos > len) { return false; } - if ((data[pos + 1] & 0xc0) != 0x80) { return false; } - // range check - code_point = (byte & 0x1f) << 6 | (data[pos + 1] & 0x3f); - if (code_point < 0x80 || 0x7ff < code_point) { return false; } - } else if ((byte & 0xf0) == 0xe0) { - next_pos = pos + 3; - if (next_pos > len) { return false; } - if ((data[pos + 1] & 0xc0) != 0x80) { return false; } - if ((data[pos + 2] & 0xc0) != 0x80) { return false; } - // range check - code_point = (byte & 0x0f) << 12 | - (data[pos + 1] & 0x3f) << 6 | - (data[pos + 2] & 0x3f); - if (code_point < 0x800 || 0xffff < code_point || - (0xd7ff < code_point && code_point < 0xe000)) { - return false; - } - } else if ((byte & 0xf8) == 0xf0) { // 0b11110000 - next_pos = pos + 4; - if (next_pos > len) { return false; } - if ((data[pos + 1] & 0xc0) != 0x80) { return false; } - if ((data[pos + 2] & 0xc0) != 0x80) { return false; } - if ((data[pos + 3] & 0xc0) != 0x80) { return false; } - // range check - code_point = - (byte & 0x07) << 18 | (data[pos + 1] & 0x3f) << 12 | - (data[pos + 2] & 0x3f) << 6 | (data[pos + 3] & 0x3f); - if (code_point <= 0xffff || 0x10ffff < code_point) { return false; } - } else { - // we may have a continuation - return false; } - pos = next_pos; + // Last document is complete, so the next document will appear after! + if (!arr_cnt && !obj_cnt) { + return parser.n_structural_indexes; + } + // Last document is incomplete; mark the document at i + 1 as the next one + return i; } - return true; + // If we made it to the end, we want to finish counting to see if we have a full document. + switch (parser.buf[parser.structural_indexes[0]]) { + case '}': + obj_cnt--; + break; + case ']': + arr_cnt--; + break; + case '{': + obj_cnt++; + break; + case '[': + arr_cnt++; + break; + } + if (!arr_cnt && !obj_cnt) { + // We have a complete document. + return parser.n_structural_indexes; + } + return 0; } -} // namespace fallback +} // namespace stage1 +} // unnamed namespace +} // namespace icelake } // namespace simdjson -// -// Stage 2 -// -/* begin file src/generic/stage2/stringparsing.h */ -// This file contains the common code every implementation uses +#endif // SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H +/* end file generic/stage1/find_next_document_index.h for icelake */ +/* including generic/stage1/json_minifier.h for icelake: #include */ +/* begin file generic/stage1/json_minifier.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 // It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) namespace simdjson { -namespace fallback { +namespace icelake { namespace { -/// @private -namespace stringparsing { - -// begin copypasta -// These chars yield themselves: " \ / -// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab -// u not handled in this table as it's complex -static const uint8_t escape_map[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. - 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. - 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. +namespace stage1 { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; }; -// handle a unicode codepoint -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, - uint8_t **dst_ptr, bool allow_replacement) { - // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) - constexpr uint32_t substitution_code_point = 0xfffd; - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; - - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - - // We have already checked that the high surrogate is valid and - // (code_point - 0xd800) < 1024. - // - // Check that code_point_2 is in the range 0xdc00..0xdfff - // and that code_point_2 was parsed from valid hex. - uint32_t low_bit = code_point_2 - 0xdc00; - if (low_bit >> 10) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } - - } - } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { - // If we encounter a low surrogate (not preceded by a high surrogate) - // then we have an error. - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); } +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} -// handle a unicode codepoint using the wobbly convention -// https://simonsapin.github.io/wtf-8/ -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, - uint8_t **dst_ptr) { - // It is not ideal that this function is nearly identical to handle_unicode_codepoint. - // - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - uint32_t low_bit = code_point_2 - 0xdc00; - if ((low_bit >> 10) == 0) { - code_point = - (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } - } - } +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); } +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); -/** - * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There - * must be an unescaped quote terminating the string. It returns the final output - * position as pointer. In case of error (e.g., the string has bad escaped codes), - * then null_nullptrptr is returned. It is assumed that the output buffer is large - * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + - * SIMDJSON_PADDING bytes. - */ -simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); } - /* can't be reached */ - return nullptr; -} -simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { - // It is not ideal that this function is nearly identical to parse_string. - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint_wobbly(&src, &dst)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; } - /* can't be reached */ - return nullptr; + return minifier.finish(dst, dst_len); } -} // namespace stringparsing +} // namespace stage1 } // unnamed namespace -} // namespace fallback +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage2/stringparsing.h */ -/* begin file src/generic/stage2/tape_builder.h */ -/* begin file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/logger.h */ -// This is for an internal-only stage 2 specific logger. -// Set LOG_ENABLED = true to log what stage 2 is doing! -namespace simdjson { -namespace fallback { -namespace { -namespace logger { - static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H +/* end file generic/stage1/json_minifier.h for icelake */ +/* including generic/stage1/json_structural_indexer.h for icelake: #include */ +/* begin file generic/stage1/json_structural_indexer.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -#if SIMDJSON_VERBOSE_LOGGING - static constexpr const bool LOG_ENABLED = true; -#else - static constexpr const bool LOG_ENABLED = false; -#endif - static constexpr const int LOG_EVENT_LEN = 20; - static constexpr const int LOG_BUFFER_LEN = 30; - static constexpr const int LOG_SMALL_BUFFER_LEN = 10; - static constexpr const int LOG_INDEX_LEN = 5; +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) - static int log_depth; // Not threadsafe. Log only. +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { - // Helper to turn unprintable or newline characters into spaces - static simdjson_inline char printable_char(char c) { - if (c >= 0x20) { - return c; - } else { - return ' '; - } - } +class bit_indexer { +public: + uint32_t *tail; - // Print the header and set up log_start - static simdjson_inline void log_start() { - if (LOG_ENABLED) { - log_depth = 0; - printf("\n"); - printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); - printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); - } - } + simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} - simdjson_unused static simdjson_inline void log_string(const char *message) { - if (LOG_ENABLED) { - printf("%s\n", message); - } - } + // flatten out values in 'bits' assuming that they are are to have values of idx + // plus their position in the bitvector, and store these indexes at + // base_ptr[base] incrementing base as we go + // will potentially store extra values beyond end of valid bits, so base_ptr + // needs to be large enough to handle this + // + // If the kernel sets SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER, then it + // will provide its own version of the code. +#ifdef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + simdjson_inline void write(uint32_t idx, uint64_t bits); +#else + simdjson_inline void write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) + return; +#if SIMDJSON_PREFER_REVERSE_BITS + /** + * ARM lacks a fast trailing zero instruction, but it has a fast + * bit reversal instruction and a fast leading zero instruction. + * Thus it may be profitable to reverse the bits (once) and then + * to rely on a sequence of instructions that call the leading + * zero instruction. + * + * Performance notes: + * The chosen routine is not optimal in terms of data dependency + * since zero_leading_bit might require two instructions. However, + * it tends to minimize the total number of instructions which is + * beneficial. + */ - // Logs a single line from the stage 2 DOM parser - template - static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { - if (LOG_ENABLED) { - printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); - auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; - auto next_index = structurals.next_structural; - auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); - auto next = &structurals.buf[*next_index]; - { - // Print the next N characters in the buffer. - printf("| "); - // Otherwise, print the characters starting from the buffer position. - // Print spaces for unprintable or newline characters. - for (int i=0;i(count_ones(bits)); + int i = 0; + // Do the first 8 all together + for (; i<8; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + i = 8; + for (; i<16; i++) { + int lz = leading_zeroes(rev_bits); + this->tail[i] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); } - if (current_index) { - printf("| %*u ", LOG_INDEX_LEN, *current_index); - } else { - printf("| %-*s ", LOG_INDEX_LEN, ""); + + + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + i = 16; + while (rev_bits != 0) { + int lz = leading_zeroes(rev_bits); + this->tail[i++] = static_cast(idx) + lz; + rev_bits = zero_leading_bit(rev_bits, lz); + } } - // printf("| %*u ", LOG_INDEX_LEN, structurals.next_tape_index()); - printf("| %-s ", detail); - printf("|\n"); } - } + this->tail += cnt; +#else // SIMDJSON_PREFER_REVERSE_BITS + /** + * Under recent x64 systems, we often have both a fast trailing zero + * instruction and a fast 'clear-lower-bit' instruction so the following + * algorithm can be competitive. + */ -} // namespace logger -} // unnamed namespace -} // namespace fallback -} // namespace simdjson -/* end file src/generic/stage2/logger.h */ + int cnt = static_cast(count_ones(bits)); + // Do the first 8 all together + for (int i=0; i<8; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } -namespace simdjson { -namespace fallback { -namespace { -namespace stage2 { + // Do the next 8 all together (we hope in most cases it won't happen at all + // and the branch is easily predicted). + if (simdjson_unlikely(cnt > 8)) { + for (int i=8; i<16; i++) { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + } -class json_iterator { -public: - const uint8_t* const buf; - uint32_t *next_structural; - dom_parser_implementation &dom_parser; - uint32_t depth{0}; + // Most files don't have 16+ structurals per block, so we take several basically guaranteed + // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) + // or the start of a value ("abc" true 123) every four characters. + if (simdjson_unlikely(cnt > 16)) { + int i = 16; + do { + this->tail[i] = idx + trailing_zeroes(bits); + bits = clear_lowest_bit(bits); + i++; + } while (i < cnt); + } + } - /** - * Walk the JSON document. - * - * The visitor receives callbacks when values are encountered. All callbacks pass the iterator as - * the first parameter; some callbacks have other parameters as well: - * - * - visit_document_start() - at the beginning. - * - visit_document_end() - at the end (if things were successful). - * - * - visit_array_start() - at the start `[` of a non-empty array. - * - visit_array_end() - at the end `]` of a non-empty array. - * - visit_empty_array() - when an empty array is encountered. - * - * - visit_object_end() - at the start `]` of a non-empty object. - * - visit_object_start() - at the end `]` of a non-empty object. - * - visit_empty_object() - when an empty object is encountered. - * - visit_key(const uint8_t *key) - when a key in an object field is encountered. key is - * guaranteed to point at the first quote of the string (`"key"`). - * - visit_primitive(const uint8_t *value) - when a value is a string, number, boolean or null. - * - visit_root_primitive(iter, uint8_t *value) - when the top-level value is a string, number, boolean or null. - * - * - increment_count(iter) - each time a value is found in an array or object. - */ - template - simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + this->tail += cnt; +#endif + } +#endif // SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER - /** - * Create an iterator capable of walking a JSON document. - * - * The document must have already passed through stage 1. - */ - simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); +}; +class json_structural_indexer { +public: /** - * Look at the next token. - * - * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). - * - * They may include invalid JSON as well (such as `1.2.3` or `ture`). - */ - simdjson_inline const uint8_t *peek() const noexcept; - /** - * Advance to the next token. - * - * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). - * - * They may include invalid JSON as well (such as `1.2.3` or `ture`). - */ - simdjson_inline const uint8_t *advance() noexcept; - /** - * Get the remaining length of the document, from the start of the current token. - */ - simdjson_inline size_t remaining_len() const noexcept; - /** - * Check if we are at the end of the document. + * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. * - * If this is true, there are no more tokens. - */ - simdjson_inline bool at_eof() const noexcept; - /** - * Check if we are at the beginning of the document. + * @param partial Setting the partial parameter to true allows the find_structural_bits to + * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If + * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. */ - simdjson_inline bool at_beginning() const noexcept; - simdjson_inline uint8_t last_structural() const noexcept; + template + static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; - /** - * Log that a value has been found. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_value(const char *type) const noexcept; - /** - * Log the start of a multipart value. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_start_value(const char *type) const noexcept; - /** - * Log the end of a multipart value. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_end_value(const char *type) const noexcept; - /** - * Log an error. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_error(const char *error) const noexcept; +private: + simdjson_inline json_structural_indexer(uint32_t *structural_indexes); + template + simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); + simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); - template - simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; - template - simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; + json_scanner scanner{}; + utf8_checker checker{}; + bit_indexer indexer; + uint64_t prev_structurals = 0; + uint64_t unescaped_chars_error = 0; }; -template -simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { - logger::log_start(); - - // - // Start the document - // - if (at_eof()) { return EMPTY; } - log_start_value("document"); - SIMDJSON_TRY( visitor.visit_document_start(*this) ); - - // - // Read first value - // - { - auto value = advance(); - - // Make sure the outer object or array is closed before continuing; otherwise, there are ways we - // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 - if (!STREAMING) { - switch (*value) { - case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; - case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; - } - } +simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; +// Skip the last character if it is partial +simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { + if (simdjson_unlikely(len < 3)) { + switch (len) { + case 2: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left + return len; + case 1: + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + return len; + case 0: + return len; } } - goto document_end; + if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left + if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left + if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left + return len; +} // -// Object parser states +// PERF NOTES: +// We pipe 2 inputs through these stages: +// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load +// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. +// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. +// The output of step 1 depends entirely on this information. These functions don't quite use +// up enough CPU: the second half of the functions is highly serial, only using 1 execution core +// at a time. The second input's scans has some dependency on the first ones finishing it, but +// they can make a lot of progress before they need that information. +// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that +// to finish: utf-8 checks and generating the output from the last iteration. // -object_begin: - log_start_value("object"); - depth++; - if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } - dom_parser.is_array[depth] = false; - SIMDJSON_TRY( visitor.visit_object_start(*this) ); - - { - auto key = advance(); - if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } - SIMDJSON_TRY( visitor.increment_count(*this) ); - SIMDJSON_TRY( visitor.visit_key(*this, key) ); +// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all +// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough +// workout. +// +template +error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { + if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } + // We guard the rest of the code so that we can assume that len > 0 throughout. + if (len == 0) { return EMPTY; } + if (is_streaming(partial)) { + len = trim_partial_utf8(buf, len); + // If you end up with an empty window after trimming + // the partial UTF-8 bytes, then chances are good that you + // have an UTF-8 formatting error. + if(len == 0) { return UTF8_ERROR; } } + buf_block_reader reader(buf, len); + json_structural_indexer indexer(parser.structural_indexes.get()); -object_field: - if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } - { - auto value = advance(); - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; - } + // Read all but the last block + while (reader.has_full_block()) { + indexer.step(reader.full_block(), reader); } + // Take care of the last block (will always be there unless file is empty which is + // not supposed to happen.) + uint8_t block[STEP_SIZE]; + if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } + indexer.step(block, reader); + return indexer.finish(parser, reader.block_index(), len, partial); +} -object_continue: - switch (*advance()) { - case ',': - SIMDJSON_TRY( visitor.increment_count(*this) ); - { - auto key = advance(); - if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } - SIMDJSON_TRY( visitor.visit_key(*this, key) ); - } - goto object_field; - case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; - default: log_error("No comma between object fields"); return TAPE_ERROR; - } +template<> +simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block); + simd::simd8x64 in_2(block+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1, reader.block_index()); + this->next(in_2, block_2, reader.block_index()+64); + reader.advance(); +} -scope_end: - depth--; - if (depth == 0) { goto document_end; } - if (dom_parser.is_array[depth]) { goto array_continue; } - goto object_continue; +template<> +simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block); + json_block block_1 = scanner.next(in_1); + this->next(in_1, block_1, reader.block_index()); + reader.advance(); +} -// -// Array parser states -// -array_begin: - log_start_value("array"); - depth++; - if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } - dom_parser.is_array[depth] = true; - SIMDJSON_TRY( visitor.visit_array_start(*this) ); - SIMDJSON_TRY( visitor.increment_count(*this) ); +simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { + uint64_t unescaped = in.lteq(0x1F); +#if SIMDJSON_UTF8VALIDATION + checker.check_next_input(in); +#endif + indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser + prev_structurals = block.structural_start(); + unescaped_chars_error |= block.non_quote_inside_string(unescaped); +} -array_value: - { - auto value = advance(); - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; - } - } +simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { + // Write out the final iteration's structurals + indexer.write(uint32_t(idx-64), prev_structurals); + error_code error = scanner.finish(); + // We deliberately break down the next expression so that it is + // human readable. + const bool should_we_exit = is_streaming(partial) ? + ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING + : (error != SUCCESS); // if partial is false, we must have SUCCESS + const bool have_unclosed_string = (error == UNCLOSED_STRING); + if (simdjson_unlikely(should_we_exit)) { return error; } -array_continue: - switch (*advance()) { - case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; - case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; - default: log_error("Missing comma between array values"); return TAPE_ERROR; + if (unescaped_chars_error) { + return UNESCAPED_CHARS; } + parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); + /*** + * The On Demand API requires special padding. + * + * This is related to https://github.com/simdjson/simdjson/issues/906 + * Basically, we want to make sure that if the parsing continues beyond the last (valid) + * structural character, it quickly stops. + * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. + * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing + * continues, then it must be [,] or }. + * Suppose it is ] or }. We backtrack to the first character, what could it be that would + * not trigger an error? It could be ] or } but no, because you can't start a document that way. + * It can't be a comma, a colon or any simple value. So the only way we could continue is + * if the repeated character is [. But if so, the document must start with [. But if the document + * starts with [, it should end with ]. If we enforce that rule, then we would get + * ][[ which is invalid. + * + * This is illustrated with the test array_iterate_unclosed_error() on the following input: + * R"({ "a": [,,)" + **/ + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final + parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); + parser.structural_indexes[parser.n_structural_indexes + 2] = 0; + parser.next_structural_index = 0; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + return EMPTY; + } + if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { + return UNEXPECTED_ERROR; + } + if (partial == stage1_mode::streaming_partial) { + // If we have an unclosed string, then the last structural + // will be the quote and we want to make sure to omit it. + if(have_unclosed_string) { + parser.n_structural_indexes--; + // a valid JSON file cannot have zero structural indexes - we should have found something + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } + } + // We truncate the input to the end of the last complete document (or zero). + auto new_structural_indexes = find_next_document_index(parser); + if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { + if(parser.structural_indexes[0] == 0) { + // If the buffer is partial and we started at index 0 but the document is + // incomplete, it's too big to parse. + return CAPACITY; + } else { + // It is possible that the document could be parsed, we just had a lot + // of white space. + parser.n_structural_indexes = 0; + return EMPTY; + } + } -document_end: - log_end_value("document"); - SIMDJSON_TRY( visitor.visit_document_end(*this) ); - - dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); - - // If we didn't make it to the end, it's an error - if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { - log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); - return TAPE_ERROR; + parser.n_structural_indexes = new_structural_indexes; + } else if (partial == stage1_mode::streaming_final) { + if(have_unclosed_string) { parser.n_structural_indexes--; } + // We truncate the input to the end of the last complete document (or zero). + // Because partial == stage1_mode::streaming_final, it means that we may + // silently ignore trailing garbage. Though it sounds bad, we do it + // deliberately because many people who have streams of JSON documents + // will truncate them for processing. E.g., imagine that you are uncompressing + // the data from a size file or receiving it in chunks from the network. You + // may not know where exactly the last document will be. Meanwhile the + // document_stream instances allow people to know the JSON documents they are + // parsing (see the iterator.source() method). + parser.n_structural_indexes = find_next_document_index(parser); + // We store the initial n_structural_indexes so that the client can see + // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, + // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, + // otherwise, it will copy some prior index. + parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; + // This next line is critical, do not change it unless you understand what you are + // doing. + parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); + if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { + // We tolerate an unclosed string at the very end of the stream. Indeed, users + // often load their data in bulk without being careful and they want us to ignore + // the trailing garbage. + return EMPTY; + } } + checker.check_eof(); + return checker.errors(); +} - return SUCCESS; +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson -} // walk_document() +// Clear CUSTOM_BIT_INDEXER so other implementations can set it if they need to. +#undef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER -simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) - : buf{_dom_parser.buf}, - next_structural{&_dom_parser.structural_indexes[start_structural_index]}, - dom_parser{_dom_parser} { -} +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H +/* end file generic/stage1/json_structural_indexer.h for icelake */ +/* including generic/stage1/utf8_validator.h for icelake: #include */ +/* begin file generic/stage1/utf8_validator.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H -simdjson_inline const uint8_t *json_iterator::peek() const noexcept { - return &buf[*(next_structural)]; -} -simdjson_inline const uint8_t *json_iterator::advance() noexcept { - return &buf[*(next_structural++)]; -} -simdjson_inline size_t json_iterator::remaining_len() const noexcept { - return dom_parser.len - *(next_structural-1); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_inline bool json_iterator::at_eof() const noexcept { - return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; -} -simdjson_inline bool json_iterator::at_beginning() const noexcept { - return next_structural == dom_parser.structural_indexes.get(); -} -simdjson_inline uint8_t json_iterator::last_structural() const noexcept { - return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +namespace simdjson { +namespace icelake { +namespace { +namespace stage1 { + +/** + * Validates that the string is actual UTF-8. + */ +template +bool generic_validate_utf8(const uint8_t * input, size_t length) { + checker c{}; + buf_block_reader<64> reader(input, length); + while (reader.has_full_block()) { + simd::simd8x64 in(reader.full_block()); + c.check_next_input(in); + reader.advance(); + } + uint8_t block[64]{}; + reader.get_remainder(block); + simd::simd8x64 in(block); + c.check_next_input(in); + reader.advance(); + c.check_eof(); + return c.errors() == error_code::SUCCESS; } -simdjson_inline void json_iterator::log_value(const char *type) const noexcept { - logger::log_line(*this, "", type, ""); +bool generic_validate_utf8(const char * input, size_t length) { + return generic_validate_utf8(reinterpret_cast(input),length); } -simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { - logger::log_line(*this, "+", type, ""); - if (logger::LOG_ENABLED) { logger::log_depth++; } -} +} // namespace stage1 +} // unnamed namespace +} // namespace icelake +} // namespace simdjson -simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { - if (logger::LOG_ENABLED) { logger::log_depth--; } - logger::log_line(*this, "-", type, ""); -} +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H +/* end file generic/stage1/utf8_validator.h for icelake */ +/* end file generic/stage1/amalgamated.h for icelake */ +/* including generic/stage2/amalgamated.h for icelake: #include */ +/* begin file generic/stage2/amalgamated.h for icelake */ +// Stuff other things depend on +/* including generic/stage2/base.h for icelake: #include */ +/* begin file generic/stage2/base.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_inline void json_iterator::log_error(const char *error) const noexcept { - logger::log_line(*this, "", "ERROR", error); -} +namespace simdjson { +namespace icelake { +namespace { +namespace stage2 { -template -simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { - switch (*value) { - case '"': return visitor.visit_root_string(*this, value); - case 't': return visitor.visit_root_true_atom(*this, value); - case 'f': return visitor.visit_root_false_atom(*this, value); - case 'n': return visitor.visit_root_null_atom(*this, value); - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return visitor.visit_root_number(*this, value); - default: - log_error("Document starts with a non-value character"); - return TAPE_ERROR; - } -} -template -simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { - switch (*value) { - case '"': return visitor.visit_string(*this, value); - case 't': return visitor.visit_true_atom(*this, value); - case 'f': return visitor.visit_false_atom(*this, value); - case 'n': return visitor.visit_null_atom(*this, value); - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return visitor.visit_number(*this, value); - default: - log_error("Non-value found when value was expected!"); - return TAPE_ERROR; - } -} +class json_iterator; +class structural_iterator; +struct tape_builder; +struct tape_writer; } // namespace stage2 } // unnamed namespace -} // namespace fallback +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/tape_writer.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_BASE_H +/* end file generic/stage2/base.h for icelake */ +/* including generic/stage2/tape_writer.h for icelake: #include */ +/* begin file generic/stage2/tape_writer.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + namespace simdjson { -namespace fallback { +namespace icelake { namespace { namespace stage2 { @@ -6422,7 +28788,7 @@ struct tape_writer { */ template simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; -}; // struct number_writer +}; // struct tape_writer simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { append2(0, value, internal::tape_type::INT64); @@ -6470,3182 +28836,4931 @@ simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, intern } // namespace stage2 } // unnamed namespace -} // namespace fallback +} // namespace icelake } // namespace simdjson -/* end file src/generic/stage2/tape_writer.h */ - -namespace simdjson { -namespace fallback { -namespace { -namespace stage2 { - -struct tape_builder { - template - simdjson_warn_unused static simdjson_inline error_code parse_document( - dom_parser_implementation &dom_parser, - dom::document &doc) noexcept; - - /** Called when a non-empty document starts. */ - simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; - /** Called when a non-empty document ends without error. */ - simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; - - /** Called when a non-empty array starts. */ - simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; - /** Called when a non-empty array ends. */ - simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; - /** Called when an empty array is found. */ - simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; - - /** Called when a non-empty object starts. */ - simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; - /** - * Called when a key in a field is encountered. - * - * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array - * will be called after this with the field value. - */ - simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; - /** Called when a non-empty object ends. */ - simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; - /** Called when an empty object is found. */ - simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; - - /** - * Called when a string, number, boolean or null is found. - */ - simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; - /** - * Called when a string, number, boolean or null is found at the top level of a document (i.e. - * when there is no array or object and the entire document is a single string, number, boolean or - * null. - * - * This is separate from primitive() because simdjson's normal primitive parsing routines assume - * there is at least one more token after the value, which is only true in an array or object. - */ - simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; - - simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; - - simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; - - /** Called each time a new field or element in an array or object is found. */ - simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; - - /** Next location to write to tape */ - tape_writer tape; -private: - /** Next write location in the string buf for stage 2 parsing */ - uint8_t *current_string_buf_loc; - - simdjson_inline tape_builder(dom::document &doc) noexcept; - - simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; - simdjson_inline void start_container(json_iterator &iter) noexcept; - simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; - simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; - simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; - simdjson_inline void on_end_string(uint8_t *dst) noexcept; -}; // class tape_builder - -template -simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( - dom_parser_implementation &dom_parser, - dom::document &doc) noexcept { - dom_parser.doc = &doc; - json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); - tape_builder builder(doc); - return iter.walk_document(builder); -} - -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { - return iter.visit_root_primitive(*this, value); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { - return iter.visit_primitive(*this, value); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { - return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { - return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); -} - -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { - return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { - return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { - constexpr uint32_t start_tape_index = 0; - tape.append(start_tape_index, internal::tape_type::ROOT); - tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { - return visit_string(iter, key, true); -} +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H +/* end file generic/stage2/tape_writer.h for icelake */ +/* including generic/stage2/logger.h for icelake: #include */ +/* begin file generic/stage2/logger.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H -simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { - iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 - return SUCCESS; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} +#include -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { - iter.log_value(key ? "key" : "string"); - uint8_t *dst = on_start_string(iter); - dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. - if (dst == nullptr) { - iter.log_error("Invalid escape in string"); - return STRING_ERROR; - } - on_end_string(dst); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { - return visit_string(iter, value); -} +// This is for an internal-only stage 2 specific logger. +// Set LOG_ENABLED = true to log what stage 2 is doing! +namespace simdjson { +namespace icelake { +namespace { +namespace logger { -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("number"); - return numberparsing::parse_number(value, tape); -} + static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { - // - // We need to make a copy to make sure that the string is space terminated. - // This is not about padding the input, which should already padded up - // to len + SIMDJSON_PADDING. However, we have no control at this stage - // on how the padding was done. What if the input string was padded with nulls? - // It is quite common for an input string to have an extra null character (C string). - // We do not want to allow 9\0 (where \0 is the null character) inside a JSON - // document, but the string "9\0" by itself is fine. So we make a copy and - // pad the input with spaces when we know that there is just one input element. - // This copy is relatively expensive, but it will almost never be called in - // practice unless you are in the strange scenario where you have many JSON - // documents made of single atoms. - // - std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); - if (copy.get() == nullptr) { return MEMALLOC; } - std::memcpy(copy.get(), value, iter.remaining_len()); - std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); - error_code error = visit_number(iter, copy.get()); - return error; -} +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + static constexpr const int LOG_EVENT_LEN = 20; + static constexpr const int LOG_BUFFER_LEN = 30; + static constexpr const int LOG_SMALL_BUFFER_LEN = 10; + static constexpr const int LOG_INDEX_LEN = 5; -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("true"); - if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } - tape.append(0, internal::tape_type::TRUE_VALUE); - return SUCCESS; -} + static int log_depth; // Not threadsafe. Log only. -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("true"); - if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } - tape.append(0, internal::tape_type::TRUE_VALUE); - return SUCCESS; -} + // Helper to turn unprintable or newline characters into spaces + static simdjson_inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } + } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("false"); - if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } - tape.append(0, internal::tape_type::FALSE_VALUE); - return SUCCESS; -} + // Print the header and set up log_start + static simdjson_inline void log_start() { + if (LOG_ENABLED) { + log_depth = 0; + printf("\n"); + printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); + printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); + } + } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("false"); - if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } - tape.append(0, internal::tape_type::FALSE_VALUE); - return SUCCESS; -} + simdjson_unused static simdjson_inline void log_string(const char *message) { + if (LOG_ENABLED) { + printf("%s\n", message); + } + } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("null"); - if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } - tape.append(0, internal::tape_type::NULL_VALUE); - return SUCCESS; -} + // Logs a single line from the stage 2 DOM parser + template + static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { + if (LOG_ENABLED) { + printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); + auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; + auto next_index = structurals.next_structural; + auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); + auto next = &structurals.buf[*next_index]; + { + // Print the next N characters in the buffer. + printf("| "); + // Otherwise, print the characters starting from the buffer position. + // Print spaces for unprintable or newline characters. + for (int i=0;itape.get()); -} +// All other declarations +/* including generic/stage2/json_iterator.h for icelake: #include */ +/* begin file generic/stage2/json_iterator.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H -simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { - auto start_index = next_tape_index(iter); - tape.append(start_index+2, start); - tape.append(start_index, end); - return SUCCESS; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { - iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); - iter.dom_parser.open_containers[iter.depth].count = 0; - tape.skip(); // We don't actually *write* the start element until the end. -} +namespace simdjson { +namespace icelake { +namespace { +namespace stage2 { -simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { - // Write the ending tape element, pointing at the start location - const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; - tape.append(start_tape_index, end); - // Write the start tape element, pointing at the end location (and including count) - // count can overflow if it exceeds 24 bits... so we saturate - // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). - const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; - const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; - tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); - return SUCCESS; -} +class json_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; + uint32_t depth{0}; -simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { - // we advance the point, accounting for the fact that we have a NULL termination - tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); - return current_string_buf_loc + sizeof(uint32_t); -} + /** + * Walk the JSON document. + * + * The visitor receives callbacks when values are encountered. All callbacks pass the iterator as + * the first parameter; some callbacks have other parameters as well: + * + * - visit_document_start() - at the beginning. + * - visit_document_end() - at the end (if things were successful). + * + * - visit_array_start() - at the start `[` of a non-empty array. + * - visit_array_end() - at the end `]` of a non-empty array. + * - visit_empty_array() - when an empty array is encountered. + * + * - visit_object_end() - at the start `]` of a non-empty object. + * - visit_object_start() - at the end `]` of a non-empty object. + * - visit_empty_object() - when an empty object is encountered. + * - visit_key(const uint8_t *key) - when a key in an object field is encountered. key is + * guaranteed to point at the first quote of the string (`"key"`). + * - visit_primitive(const uint8_t *value) - when a value is a string, number, boolean or null. + * - visit_root_primitive(iter, uint8_t *value) - when the top-level value is a string, number, boolean or null. + * + * - increment_count(iter) - each time a value is found in an array or object. + */ + template + simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; -simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { - uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); - // TODO check for overflow in case someone has a crazy string (>=4GB?) - // But only add the overflow check when the document itself exceeds 4GB - // Currently unneeded because we refuse to parse docs larger or equal to 4GB. - memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); - // NULL termination is still handy if you expect all your strings to - // be NULL terminated? It comes at a small cost - *dst = 0; - current_string_buf_loc = dst + 1; -} + /** + * Create an iterator capable of walking a JSON document. + * + * The document must have already passed through stage 1. + */ + simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); -} // namespace stage2 -} // unnamed namespace -} // namespace fallback -} // namespace simdjson -/* end file src/generic/stage2/tape_builder.h */ + /** + * Look at the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *peek() const noexcept; + /** + * Advance to the next token. + * + * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). + * + * They may include invalid JSON as well (such as `1.2.3` or `ture`). + */ + simdjson_inline const uint8_t *advance() noexcept; + /** + * Get the remaining length of the document, from the start of the current token. + */ + simdjson_inline size_t remaining_len() const noexcept; + /** + * Check if we are at the end of the document. + * + * If this is true, there are no more tokens. + */ + simdjson_inline bool at_eof() const noexcept; + /** + * Check if we are at the beginning of the document. + */ + simdjson_inline bool at_beginning() const noexcept; + simdjson_inline uint8_t last_structural() const noexcept; + + /** + * Log that a value has been found. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_value(const char *type) const noexcept; + /** + * Log the start of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_start_value(const char *type) const noexcept; + /** + * Log the end of a multipart value. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_end_value(const char *type) const noexcept; + /** + * Log an error. + * + * Set LOG_ENABLED=true in logger.h to see logging. + */ + simdjson_inline void log_error(const char *error) const noexcept; + + template + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; + template + simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; +}; + +template +simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { + logger::log_start(); -namespace simdjson { -namespace fallback { + // + // Start the document + // + if (at_eof()) { return EMPTY; } + log_start_value("document"); + SIMDJSON_TRY( visitor.visit_document_start(*this) ); -simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} + // + // Read first value + // + { + auto value = advance(); -simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} + // Make sure the outer object or array is closed before continuing; otherwise, there are ways we + // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 + if (!STREAMING) { + switch (*value) { + case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; + case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; + } + } -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { - return fallback::stringparsing::parse_string(src, dst, replacement_char); -} + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + } + } + goto document_end; -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { - return fallback::stringparsing::parse_wobbly_string(src, dst); -} +// +// Object parser states +// +object_begin: + log_start_value("object"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = false; + SIMDJSON_TRY( visitor.visit_object_start(*this) ); -simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { - auto error = stage1(_buf, _len, stage1_mode::regular); - if (error) { return error; } - return stage2(_doc); -} + { + auto key = advance(); + if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.increment_count(*this) ); + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } -} // namespace fallback -} // namespace simdjson +object_field: + if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } -/* begin file include/simdjson/fallback/end.h */ -/* end file include/simdjson/fallback/end.h */ -/* end file src/fallback/dom_parser_implementation.cpp */ -#endif -#if SIMDJSON_IMPLEMENTATION_ICELAKE -/* begin file src/icelake/implementation.cpp */ -/* begin file include/simdjson/icelake/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "icelake" -// #define SIMDJSON_IMPLEMENTATION icelake -SIMDJSON_TARGET_ICELAKE -/* end file include/simdjson/icelake/begin.h */ +object_continue: + switch (*advance()) { + case ',': + SIMDJSON_TRY( visitor.increment_count(*this) ); + { + auto key = advance(); + if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } + SIMDJSON_TRY( visitor.visit_key(*this, key) ); + } + goto object_field; + case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; + default: log_error("No comma between object fields"); return TAPE_ERROR; + } -namespace simdjson { -namespace icelake { +scope_end: + depth--; + if (depth == 0) { goto document_end; } + if (dom_parser.is_array[depth]) { goto array_continue; } + goto object_continue; -simdjson_warn_unused error_code implementation::create_dom_parser_implementation( - size_t capacity, - size_t max_depth, - std::unique_ptr& dst -) const noexcept { - dst.reset( new (std::nothrow) dom_parser_implementation() ); - if (!dst) { return MEMALLOC; } - if (auto err = dst->set_capacity(capacity)) - return err; - if (auto err = dst->set_max_depth(max_depth)) - return err; - return SUCCESS; -} +// +// Array parser states +// +array_begin: + log_start_value("array"); + depth++; + if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } + dom_parser.is_array[depth] = true; + SIMDJSON_TRY( visitor.visit_array_start(*this) ); + SIMDJSON_TRY( visitor.increment_count(*this) ); -} // namespace icelake -} // namespace simdjson +array_value: + { + auto value = advance(); + switch (*value) { + case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; + case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; + default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + } + } -/* begin file include/simdjson/icelake/end.h */ -SIMDJSON_UNTARGET_ICELAKE -/* end file include/simdjson/icelake/end.h */ +array_continue: + switch (*advance()) { + case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; + case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; + default: log_error("Missing comma between array values"); return TAPE_ERROR; + } -/* end file src/icelake/implementation.cpp */ -/* begin file src/icelake/dom_parser_implementation.cpp */ -/* begin file include/simdjson/icelake/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "icelake" -// #define SIMDJSON_IMPLEMENTATION icelake -SIMDJSON_TARGET_ICELAKE -/* end file include/simdjson/icelake/begin.h */ +document_end: + log_end_value("document"); + SIMDJSON_TRY( visitor.visit_document_end(*this) ); -// -// Stage 1 -// + dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); -namespace simdjson { -namespace icelake { -namespace { + // If we didn't make it to the end, it's an error + if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { + log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); + return TAPE_ERROR; + } -using namespace simd; + return SUCCESS; -struct json_character_block { - static simdjson_inline json_character_block classify(const simd::simd8x64& in); - // ASCII white-space ('\r','\n','\t',' ') - simdjson_inline uint64_t whitespace() const noexcept; - // non-quote structural characters (comma, colon, braces, brackets) - simdjson_inline uint64_t op() const noexcept; - // neither a structural character nor a white-space, so letters, numbers and quotes - simdjson_inline uint64_t scalar() const noexcept; - - uint64_t _whitespace; // ASCII white-space ('\r','\n','\t',' ') - uint64_t _op; // structural characters (comma, colon, braces, brackets but not quotes) -}; +} // walk_document() -simdjson_inline uint64_t json_character_block::whitespace() const noexcept { return _whitespace; } -simdjson_inline uint64_t json_character_block::op() const noexcept { return _op; } -simdjson_inline uint64_t json_character_block::scalar() const noexcept { return ~(op() | whitespace()); } +simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { +} -// This identifies structural characters (comma, colon, braces, brackets), -// and ASCII white-space ('\r','\n','\t',' '). -simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { - // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why - // we can't use the generic lookup_16. - const auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); +simdjson_inline const uint8_t *json_iterator::peek() const noexcept { + return &buf[*(next_structural)]; +} +simdjson_inline const uint8_t *json_iterator::advance() noexcept { + return &buf[*(next_structural++)]; +} +simdjson_inline size_t json_iterator::remaining_len() const noexcept { + return dom_parser.len - *(next_structural-1); +} - // The 6 operators (:,[]{}) have these values: - // - // , 2C - // : 3A - // [ 5B - // { 7B - // ] 5D - // } 7D - // - // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. - // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then - // match it (against | 0x20). - // - // To prevent recognizing other characters, everything else gets compared with 0, which cannot - // match due to the | 0x20. - // - // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , - // and :. This gets caught in stage 2, which checks the actual character to ensure the right - // operators are in the right places. - const auto op_table = simd8::repeat_16( - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B - ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D - ); +simdjson_inline bool json_iterator::at_eof() const noexcept { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +} +simdjson_inline bool json_iterator::at_beginning() const noexcept { + return next_structural == dom_parser.structural_indexes.get(); +} +simdjson_inline uint8_t json_iterator::last_structural() const noexcept { + return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; +} - // We compute whitespace and op separately. If later code only uses one or the - // other, given the fact that all functions are aggressively inlined, we can - // hope that useless computations will be omitted. This is namely case when - // minifying (we only need whitespace). +simdjson_inline void json_iterator::log_value(const char *type) const noexcept { + logger::log_line(*this, "", type, ""); +} - const uint64_t whitespace = in.eq({ - _mm512_shuffle_epi8(whitespace_table, in.chunks[0]) - }); - // Turn [ and ] into { and } - const simd8x64 curlified{ - in.chunks[0] | 0x20 - }; - const uint64_t op = curlified.eq({ - _mm512_shuffle_epi8(op_table, in.chunks[0]) - }); +simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { + logger::log_line(*this, "+", type, ""); + if (logger::LOG_ENABLED) { logger::log_depth++; } +} - return { whitespace, op }; +simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { + if (logger::LOG_ENABLED) { logger::log_depth--; } + logger::log_line(*this, "-", type, ""); } -simdjson_inline bool is_ascii(const simd8x64& input) { - return input.reduce_or().is_ascii(); +simdjson_inline void json_iterator::log_error(const char *error) const noexcept { + logger::log_line(*this, "", "ERROR", error); } -simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { - simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 - simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 - simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 - // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. - return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_root_string(*this, value); + case 't': return visitor.visit_root_true_atom(*this, value); + case 'f': return visitor.visit_root_false_atom(*this, value); + case 'n': return visitor.visit_root_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_root_number(*this, value); + default: + log_error("Document starts with a non-value character"); + return TAPE_ERROR; + } } - -simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { - simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 - simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 - // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. - return simd8(is_third_byte | is_fourth_byte) > int8_t(0); +template +simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { + switch (*value) { + case '"': return visitor.visit_string(*this, value); + case 't': return visitor.visit_true_atom(*this, value); + case 'f': return visitor.visit_false_atom(*this, value); + case 'n': return visitor.visit_null_atom(*this, value); + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return visitor.visit_number(*this, value); + default: + log_error("Non-value found when value was expected!"); + return TAPE_ERROR; + } } +} // namespace stage2 } // unnamed namespace } // namespace icelake } // namespace simdjson -/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +#endif // SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H +/* end file generic/stage2/json_iterator.h for icelake */ +/* including generic/stage2/stringparsing.h for icelake: #include */ +/* begin file generic/stage2/stringparsing.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + namespace simdjson { namespace icelake { namespace { -namespace utf8_validation { +/// @private +namespace stringparsing { -using namespace simd; +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { -// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) -// Bit 1 = Too Long (ASCII followed by continuation) -// Bit 2 = Overlong 3-byte -// Bit 4 = Surrogate -// Bit 5 = Overlong 2-byte -// Bit 7 = Two Continuations - constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ - // 11______ 11______ - constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ - constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ - constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ - constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ - constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ - constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ - // 11110100 101_____ - // 11110101 1001____ - // 11110101 101_____ - // 1111011_ 1001____ - // 1111011_ 101_____ - // 11111___ 1001____ - // 11111___ 101_____ - constexpr const uint8_t TOO_LARGE_1000 = 1<<6; - // 11110101 1000____ - // 1111011_ 1000____ - // 11111___ 1000____ - constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. - const simd8 byte_1_high = prev1.shr<4>().lookup_16( - // 0_______ ________ - TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, - TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, - // 10______ ________ - TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, - // 1100____ ________ - TOO_SHORT | OVERLONG_2, - // 1101____ ________ - TOO_SHORT, - // 1110____ ________ - TOO_SHORT | OVERLONG_3 | SURROGATE, - // 1111____ ________ - TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 - ); - constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . - const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( - // ____0000 ________ - CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, - // ____0001 ________ - CARRY | OVERLONG_2, - // ____001_ ________ - CARRY, - CARRY, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - // ____0100 ________ - CARRY | TOO_LARGE, - // ____0101 ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - // ____011_ ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; - // ____1___ ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - // ____1101 ________ - CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000 - ); - const simd8 byte_2_high = input.shr<4>().lookup_16( - // ________ 0_______ - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; - // ________ 1000____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, - // ________ 1001____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, - // ________ 101_____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, - TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - // ________ 11______ - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT - ); - return (byte_1_high & byte_1_low & byte_2_high); - } - simdjson_inline simd8 check_multibyte_lengths(const simd8 input, - const simd8 prev_input, const simd8 sc) { - simd8 prev2 = input.prev<2>(prev_input); - simd8 prev3 = input.prev<3>(prev_input); - simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); - simd8 must23_80 = must23 & uint8_t(0x80); - return must23_80 ^ sc; + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. // - // Return nonzero if there are incomplete multibyte characters at the end of the block: - // e.g. if there is a 4-byte character, but it's 3 bytes from the end. - // - simdjson_inline simd8 is_incomplete(const simd8 input) { - // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): - // ... 1111____ 111_____ 11______ -#if SIMDJSON_IMPLEMENTATION_ICELAKE - static const uint8_t max_array[64] = { - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 - }; -#else - static const uint8_t max_array[32] = { - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 - }; -#endif - const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); - return input.gt_bits(max_value); + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } } - struct utf8_checker { - // If this is nonzero, there has been a UTF-8 error. - simd8 error; - // The last input we received - simd8 prev_input_block; - // Whether the last input we received was incomplete (used for ASCII fast path) - simd8 prev_incomplete; + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} - // - // Check whether the current bytes are valid UTF-8. - // - simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { - // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes - // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) - simd8 prev1 = input.prev<1>(prev_input); - simd8 sc = check_special_cases(input, prev1); - this->error |= check_multibyte_lengths(input, prev_input, sc); - } - // The only problem that can happen at EOF is that a multibyte character is too short - // or a byte value too large in the last bytes: check_special_cases only checks for bytes - // too large in the first of two bytes. - simdjson_inline void check_eof() { - // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't - // possibly finish them. - this->error |= this->prev_incomplete; +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); } - -#ifndef SIMDJSON_IF_CONSTEXPR -#if SIMDJSON_CPLUSPLUS17 -#define SIMDJSON_IF_CONSTEXPR if constexpr -#else -#define SIMDJSON_IF_CONSTEXPR if -#endif -#endif - - simdjson_inline void check_next_input(const simd8x64& input) { - if(simdjson_likely(is_ascii(input))) { - this->error |= this->prev_incomplete; + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } } else { - // you might think that a for-loop would work, but under Visual Studio, it is not good enough. - static_assert((simd8x64::NUM_CHUNKS == 1) - ||(simd8x64::NUM_CHUNKS == 2) - || (simd8x64::NUM_CHUNKS == 4), - "We support one, two or four chunks per 64-byte block."); - SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - this->check_utf8_bytes(input.chunks[2], input.chunks[1]); - this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ } - this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); - this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; } - // do not forget to call check_eof! - simdjson_inline error_code errors() { - return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; } + } + /* can't be reached */ + return nullptr; +} - }; // struct utf8_checker -} // namespace utf8_validation +} // namespace stringparsing +} // unnamed namespace +} // namespace icelake +} // namespace simdjson -using utf8_validation::utf8_checker; +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H +/* end file generic/stage2/stringparsing.h for icelake */ +/* including generic/stage2/structural_iterator.h for icelake: #include */ +/* begin file generic/stage2/structural_iterator.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { +namespace stage2 { + +class structural_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; + + // Start a structural + simdjson_inline structural_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { + } + // Get the buffer position of the current structural character + simdjson_inline const uint8_t* current() { + return &buf[*(next_structural-1)]; + } + // Get the current structural character + simdjson_inline char current_char() { + return buf[*(next_structural-1)]; + } + // Get the next structural character without advancing + simdjson_inline char peek_next_char() { + return buf[*next_structural]; + } + simdjson_inline const uint8_t* peek() { + return &buf[*next_structural]; + } + simdjson_inline const uint8_t* advance() { + return &buf[*(next_structural++)]; + } + simdjson_inline char advance_char() { + return buf[*(next_structural++)]; + } + simdjson_inline size_t remaining_len() { + return dom_parser.len - *(next_structural-1); + } + + simdjson_inline bool at_end() { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; + } + simdjson_inline bool at_beginning() { + return next_structural == dom_parser.structural_indexes.get(); + } +}; +} // namespace stage2 } // unnamed namespace } // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ -// defining SIMDJSON_CUSTOM_BIT_INDEXER allows us to provide our own bit_indexer::write -#define SIMDJSON_CUSTOM_BIT_INDEXER -/* begin file src/generic/stage1/json_structural_indexer.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) -/* begin file src/generic/stage1/buf_block_reader.h */ +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H +/* end file generic/stage2/structural_iterator.h for icelake */ +/* including generic/stage2/tape_builder.h for icelake: #include */ +/* begin file generic/stage2/tape_builder.h for icelake */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + namespace simdjson { namespace icelake { namespace { +namespace stage2 { -// Walks through a buffer in block-sized increments, loading the last part with spaces -template -struct buf_block_reader { -public: - simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); - simdjson_inline size_t block_index(); - simdjson_inline bool has_full_block() const; - simdjson_inline const uint8_t *full_block() const; +struct tape_builder { + template + simdjson_warn_unused static simdjson_inline error_code parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept; + + /** Called when a non-empty document starts. */ + simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; + /** Called when a non-empty document ends without error. */ + simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + + /** Called when a non-empty array starts. */ + simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; + /** Called when a non-empty array ends. */ + simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; + /** Called when an empty array is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + + /** Called when a non-empty object starts. */ + simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; /** - * Get the last block, padded with spaces. - * - * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this - * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there - * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * Called when a key in a field is encountered. * - * @return the number of effective characters in the last block. + * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array + * will be called after this with the field value. */ - simdjson_inline size_t get_remainder(uint8_t *dst) const; - simdjson_inline void advance(); -private: - const uint8_t *buf; - const size_t len; - const size_t lenminusstep; - size_t idx; -}; + simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; + /** Called when a non-empty object ends. */ + simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; + /** Called when an empty object is found. */ + simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + + /** + * Called when a string, number, boolean or null is found. + */ + simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; + /** + * Called when a string, number, boolean or null is found at the top level of a document (i.e. + * when there is no array or object and the entire document is a single string, number, boolean or + * null. + * + * This is separate from primitive() because simdjson's normal primitive parsing routines assume + * there is at least one more token after the value, which is only true in an array or object. + */ + simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; -// Routines to print masks and text for debugging bitmask operations -simdjson_unused static char * format_input_text_64(const uint8_t *text) { - static char buf[sizeof(simd8x64) + 1]; - for (size_t i=0; i); i++) { - buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); - } - buf[sizeof(simd8x64)] = '\0'; - return buf; -} + simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; -// Routines to print masks and text for debugging bitmask operations -simdjson_unused static char * format_input_text(const simd8x64& in) { - static char buf[sizeof(simd8x64) + 1]; - in.store(reinterpret_cast(buf)); - for (size_t i=0; i); i++) { - if (buf[i] < ' ') { buf[i] = '_'; } - } - buf[sizeof(simd8x64)] = '\0'; - return buf; -} + simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; + simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; -simdjson_unused static char * format_mask(uint64_t mask) { - static char buf[sizeof(simd8x64) + 1]; - for (size_t i=0; i<64; i++) { - buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; - } - buf[64] = '\0'; - return buf; -} + /** Called each time a new field or element in an array or object is found. */ + simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; -template -simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + /** Next location to write to tape */ + tape_writer tape; +private: + /** Next write location in the string buf for stage 2 parsing */ + uint8_t *current_string_buf_loc; -template -simdjson_inline size_t buf_block_reader::block_index() { return idx; } + simdjson_inline tape_builder(dom::document &doc) noexcept; -template -simdjson_inline bool buf_block_reader::has_full_block() const { - return idx < lenminusstep; + simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; + simdjson_inline void start_container(json_iterator &iter) noexcept; + simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; + simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; + simdjson_inline void on_end_string(uint8_t *dst) noexcept; +}; // struct tape_builder + +template +simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( + dom_parser_implementation &dom_parser, + dom::document &doc) noexcept { + dom_parser.doc = &doc; + json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); + tape_builder builder(doc); + return iter.walk_document(builder); } -template -simdjson_inline const uint8_t *buf_block_reader::full_block() const { - return &buf[idx]; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_root_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { + return iter.visit_primitive(*this, value); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { + return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); } -template -simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { - if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers - std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. - std::memcpy(dst, buf + idx, len - idx); - return len - idx; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { + start_container(iter); + return SUCCESS; } -template -simdjson_inline void buf_block_reader::advance() { - idx += STEP_SIZE; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { + return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { + constexpr uint32_t start_tape_index = 0; + tape.append(start_tape_index, internal::tape_type::ROOT); + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); + return SUCCESS; +} +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { + return visit_string(iter, key, true); } -} // unnamed namespace -} // namespace icelake -} // namespace simdjson -/* end file src/generic/stage1/buf_block_reader.h */ -/* begin file src/generic/stage1/json_string_scanner.h */ -namespace simdjson { -namespace icelake { -namespace { -namespace stage1 { +simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 + return SUCCESS; +} -struct json_string_block { - // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 - simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : - _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} +simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} - // Escaped characters (characters following an escape() character) - simdjson_inline uint64_t escaped() const { return _escaped; } - // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) - simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } - // Real (non-backslashed) quotes - simdjson_inline uint64_t quote() const { return _quote; } - // Start quotes of strings - simdjson_inline uint64_t string_start() const { return _quote & _in_string; } - // End quotes of strings - simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } - // Only characters inside the string (not including the quotes) - simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } - // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } - // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } - // Tail of string (everything except the start quote) - simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { + iter.log_value(key ? "key" : "string"); + uint8_t *dst = on_start_string(iter); + dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. + if (dst == nullptr) { + iter.log_error("Invalid escape in string"); + return STRING_ERROR; + } + on_end_string(dst); + return SUCCESS; +} - // backslash characters - uint64_t _backslash; - // escaped characters (backslashed--does not include the hex characters after \u) - uint64_t _escaped; - // real quotes (non-backslashed ones) - uint64_t _quote; - // string characters (includes start quote but not end quote) - uint64_t _in_string; -}; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { + return visit_string(iter, value); +} -// Scans blocks for string characters, storing the state necessary to do so -class json_string_scanner { -public: - simdjson_inline json_string_block next(const simd::simd8x64& in); - // Returns either UNCLOSED_STRING or SUCCESS - simdjson_inline error_code finish(); +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("number"); + return numberparsing::parse_number(value, tape); +} -private: - // Intended to be defined by the implementation - simdjson_inline uint64_t find_escaped(uint64_t escape); - simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { + // + // We need to make a copy to make sure that the string is space terminated. + // This is not about padding the input, which should already padded up + // to len + SIMDJSON_PADDING. However, we have no control at this stage + // on how the padding was done. What if the input string was padded with nulls? + // It is quite common for an input string to have an extra null character (C string). + // We do not want to allow 9\0 (where \0 is the null character) inside a JSON + // document, but the string "9\0" by itself is fine. So we make a copy and + // pad the input with spaces when we know that there is just one input element. + // This copy is relatively expensive, but it will almost never be called in + // practice unless you are in the strange scenario where you have many JSON + // documents made of single atoms. + // + std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); + if (copy.get() == nullptr) { return MEMALLOC; } + std::memcpy(copy.get(), value, iter.remaining_len()); + std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); + error_code error = visit_number(iter, copy.get()); + return error; +} - // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). - uint64_t prev_in_string = 0ULL; - // Whether the first character of the next iteration is escaped. - uint64_t prev_escaped = 0ULL; -}; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} -// -// Finds escaped characters (characters following \). -// -// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). -// -// Does this by: -// - Shift the escape mask to get potentially escaped characters (characters after backslashes). -// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) -// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) -// -// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all -// escape sequences, filters out the ones that start on even bits, and adds that to the mask of -// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since -// the start bit causes a carry), and leaves even-bit sequences alone. -// -// Example: -// -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape -// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape -// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later -// invert_mask | | cxxx c xx c| even_seq << 1 -// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit -// escaped | x | x x x x x x x x | -// desired | x | x x x x x x x x | -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// -simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { - // If there was overflow, pretend the first character isn't a backslash - backslash &= ~prev_escaped; - uint64_t follows_escape = backslash << 1 | prev_escaped; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("true"); + if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } + tape.append(0, internal::tape_type::TRUE_VALUE); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} - // Get sequences starting on even bits by clearing out the odd series using + - const uint64_t even_bits = 0x5555555555555555ULL; - uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; - uint64_t sequences_starting_on_even_bits; - prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); - uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("false"); + if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } + tape.append(0, internal::tape_type::FALSE_VALUE); + return SUCCESS; +} - // Mask every other backslashed character as an escaped character - // Flip the mask for sequences that start on even bits, to correct them - return (even_bits ^ invert_mask) & follows_escape; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; } -// -// Return a mask of all string characters plus end quotes. -// -// prev_escaped is overflow saying whether the next character is escaped. -// prev_in_string is overflow saying whether we're still in a string. -// -// Backslash sequences outside of quotes will be detected in stage 2. -// -simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { - const uint64_t backslash = in.eq('\\'); - const uint64_t escaped = find_escaped(backslash); - const uint64_t quote = in.eq('"') & ~escaped; +simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { + iter.log_value("null"); + if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } + tape.append(0, internal::tape_type::NULL_VALUE); + return SUCCESS; +} - // - // prefix_xor flips on bits inside the string (and flips off the end quote). - // - // Then we xor with prev_in_string: if we were in a string already, its effect is flipped - // (characters inside strings are outside, and characters outside strings are inside). - // - const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; +// private: - // - // Check if we're still in a string at the end of the box so the next block will know - // - // right shift of a signed value expected to be well-defined and standard - // compliant as of C++20, John Regher from Utah U. says this is fine code - // - prev_in_string = uint64_t(static_cast(in_string) >> 63); +simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { + return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +} - // Use ^ to turn the beginning quote off, and the end quote on. +simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + auto start_index = next_tape_index(iter); + tape.append(start_index+2, start); + tape.append(start_index, end); + return SUCCESS; +} - // We are returning a function-local object so either we get a move constructor - // or we get copy elision. - return json_string_block( - backslash, - escaped, - quote, - in_string - ); +simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { + iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); + iter.dom_parser.open_containers[iter.depth].count = 0; + tape.skip(); // We don't actually *write* the start element until the end. } -simdjson_inline error_code json_string_scanner::finish() { - if (prev_in_string) { - return UNCLOSED_STRING; - } +simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { + // Write the ending tape element, pointing at the start location + const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; + tape.append(start_tape_index, end); + // Write the start tape element, pointing at the end location (and including count) + // count can overflow if it exceeds 24 bits... so we saturate + // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). + const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; + const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; + tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); return SUCCESS; } -} // namespace stage1 +simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { + // we advance the point, accounting for the fact that we have a NULL termination + tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); + return current_string_buf_loc + sizeof(uint32_t); +} + +simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { + uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); + // TODO check for overflow in case someone has a crazy string (>=4GB?) + // But only add the overflow check when the document itself exceeds 4GB + // Currently unneeded because we refuse to parse docs larger or equal to 4GB. + memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); + // NULL termination is still handy if you expect all your strings to + // be NULL terminated? It comes at a small cost + *dst = 0; + current_string_buf_loc = dst + 1; +} + +} // namespace stage2 } // unnamed namespace } // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/json_string_scanner.h */ -/* begin file src/generic/stage1/json_scanner.h */ -namespace simdjson { -namespace icelake { -namespace { -namespace stage1 { - -/** - * A block of scanned json, with information on operators and scalars. - * - * We seek to identify pseudo-structural characters. Anything that is inside - * a string must be omitted (hence & ~_string.string_tail()). - * Otherwise, pseudo-structural characters come in two forms. - * 1. We have the structural characters ([,],{,},:, comma). The - * term 'structural character' is from the JSON RFC. - * 2. We have the 'scalar pseudo-structural characters'. - * Scalars are quotes, and any character except structural characters and white space. - * - * To identify the scalar pseudo-structural characters, we must look at what comes - * before them: it must be a space, a quote or a structural characters. - * Starting with simdjson v0.3, we identify them by - * negation: we identify everything that is followed by a non-quote scalar, - * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. - */ -struct json_block { -public: - // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 - simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : - _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} - simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : - _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} - - /** - * The start of structurals. - * In simdjson prior to v0.3, these were called the pseudo-structural characters. - **/ - simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } - /** All JSON whitespace (i.e. not in a string) */ - simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } - // Helpers +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H +/* end file generic/stage2/tape_builder.h for icelake */ +/* end file generic/stage2/amalgamated.h for icelake */ - /** Whether the given characters are inside a string (only works on non-quotes) */ - simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } - /** Whether the given characters are outside a string (only works on non-quotes) */ - simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } +#undef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER - // string and escape characters - json_string_block _string; - // whitespace, structural characters ('operators'), scalars - json_character_block _characters; - // whether the previous character was a scalar - uint64_t _follows_potential_nonquote_scalar; -private: - // Potential structurals (i.e. disregarding strings) +// +// Stage 1 +// - /** - * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". - * They may reside inside a string. - **/ - simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } - /** - * The start of non-operator runs, like 123, true and "abc". - * It main reside inside a string. - **/ - simdjson_inline uint64_t potential_scalar_start() const noexcept { - // The term "scalar" refers to anything except structural characters and white space - // (so letters, numbers, quotes). - // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space - // then we know that it is irrelevant structurally. - return _characters.scalar() & ~follows_potential_scalar(); - } - /** - * Whether the given character is immediately after a non-operator like 123, true. - * The characters following a quote are not included. - */ - simdjson_inline uint64_t follows_potential_scalar() const noexcept { - // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character - // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a - // white space. - // It is understood that within quoted region, anything at all could be marked (irrelevant). - return _follows_potential_nonquote_scalar; - } -}; +namespace simdjson { +namespace icelake { -/** - * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. - * - * The scanner starts by calculating two distinct things: - * - string characters (taking \" into account) - * - structural characters or 'operators' ([]{},:, comma) - * and scalars (runs of non-operators like 123, true and "abc") - * - * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: - * in particular, the operator/scalar bit will find plenty of things that are actually part of - * strings. When we're done, json_block will fuse the two together by masking out tokens that are - * part of a string. - */ -class json_scanner { -public: - json_scanner() = default; - simdjson_inline json_block next(const simd::simd8x64& in); - // Returns either UNCLOSED_STRING or SUCCESS - simdjson_inline error_code finish(); +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} -private: - // Whether the last character of the previous iteration is part of a scalar token - // (anything except whitespace or a structural character/'operator'). - uint64_t prev_scalar = 0ULL; - json_string_scanner string_scanner{}; -}; +namespace { +using namespace simd; -// -// Check if the current character immediately follows a matching character. -// -// For example, this checks for quotes with backslashes in front of them: -// -// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); -// -simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { - const uint64_t result = match << 1 | overflow; - overflow = match >> 63; - return result; -} +// This identifies structural characters (comma, colon, braces, brackets), +// and ASCII white-space ('\r','\n','\t',' '). +simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { + // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why + // we can't use the generic lookup_16. + const auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); -simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { - json_string_block strings = string_scanner.next(in); - // identifies the white-space and the structural characters - json_character_block characters = json_character_block::classify(in); - // The term "scalar" refers to anything except structural characters and white space - // (so letters, numbers, quotes). - // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). + // The 6 operators (:,[]{}) have these values: // - // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) - // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential - // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we - // may need to add an extra check when parsing strings. + // , 2C + // : 3A + // [ 5B + // { 7B + // ] 5D + // } 7D // - // Performance: there are many ways to skin this cat. - const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); - uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); - // We are returning a function-local object so either we get a move constructor - // or we get copy elision. - return json_block( - strings,// strings is a function-local object so either it moves or the copy is elided. - characters, - follows_nonquote_scalar + // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. + // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then + // match it (against | 0x20). + // + // To prevent recognizing other characters, everything else gets compared with 0, which cannot + // match due to the | 0x20. + // + // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , + // and :. This gets caught in stage 2, which checks the actual character to ensure the right + // operators are in the right places. + const auto op_table = simd8::repeat_16( + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B + ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D ); + + // We compute whitespace and op separately. If later code only uses one or the + // other, given the fact that all functions are aggressively inlined, we can + // hope that useless computations will be omitted. This is namely case when + // minifying (we only need whitespace). + + const uint64_t whitespace = in.eq({ + _mm512_shuffle_epi8(whitespace_table, in.chunks[0]) + }); + // Turn [ and ] into { and } + const simd8x64 curlified{ + in.chunks[0] | 0x20 + }; + const uint64_t op = curlified.eq({ + _mm512_shuffle_epi8(op_table, in.chunks[0]) + }); + + return { whitespace, op }; } -simdjson_inline error_code json_scanner::finish() { - return string_scanner.finish(); +simdjson_inline bool is_ascii(const simd8x64& input) { + return input.reduce_or().is_ascii(); +} + +simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { + simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); +} + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_third_byte | is_fourth_byte) > int8_t(0); } -} // namespace stage1 } // unnamed namespace } // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/json_scanner.h */ -/* begin file src/generic/stage1/json_minifier.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) -namespace simdjson { -namespace icelake { -namespace { -namespace stage1 { +/** + * We provide a custom version of bit_indexer::write using + * naked intrinsics. + * TODO: make this code more elegant. + */ +// Under GCC 12, the intrinsic _mm512_extracti32x4_epi32 may generate 'maybe uninitialized'. +// as a workaround, we disable warnings within the following function. +SIMDJSON_PUSH_DISABLE_ALL_WARNINGS +namespace simdjson { namespace icelake { namespace { namespace stage1 { +simdjson_inline void bit_indexer::write(uint32_t idx, uint64_t bits) { + // In some instances, the next branch is expensive because it is mispredicted. + // Unfortunately, in other cases, + // it helps tremendously. + if (bits == 0) { return; } -class json_minifier { -public: - template - static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + const __m512i indexes = _mm512_maskz_compress_epi8(bits, _mm512_set_epi32( + 0x3f3e3d3c, 0x3b3a3938, 0x37363534, 0x33323130, + 0x2f2e2d2c, 0x2b2a2928, 0x27262524, 0x23222120, + 0x1f1e1d1c, 0x1b1a1918, 0x17161514, 0x13121110, + 0x0f0e0d0c, 0x0b0a0908, 0x07060504, 0x03020100 + )); + const __m512i start_index = _mm512_set1_epi32(idx); -private: - simdjson_inline json_minifier(uint8_t *_dst) - : dst{_dst} - {} - template - simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; - simdjson_inline void next(const simd::simd8x64& in, const json_block& block); - simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); - json_scanner scanner{}; - uint8_t *dst; -}; + const auto count = count_ones(bits); + __m512i t0 = _mm512_cvtepu8_epi32(_mm512_castsi512_si128(indexes)); + _mm512_storeu_si512(this->tail, _mm512_add_epi32(t0, start_index)); -simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { - uint64_t mask = block.whitespace(); - dst += in.compress(mask, dst); + if(count > 16) { + const __m512i t1 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 1)); + _mm512_storeu_si512(this->tail + 16, _mm512_add_epi32(t1, start_index)); + if(count > 32) { + const __m512i t2 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 2)); + _mm512_storeu_si512(this->tail + 32, _mm512_add_epi32(t2, start_index)); + if(count > 48) { + const __m512i t3 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 3)); + _mm512_storeu_si512(this->tail + 48, _mm512_add_epi32(t3, start_index)); + } + } + } + this->tail += count; } +}}}} +SIMDJSON_POP_DISABLE_WARNINGS -simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { - error_code error = scanner.finish(); - if (error) { dst_len = 0; return error; } - dst_len = dst - dst_start; - return SUCCESS; +// +// Stage 2 +// + +// +// Implementation-specific overrides +// +namespace simdjson { +namespace icelake { + +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return icelake::stage1::json_minifier::minify<128>(buf, len, dst, dst_len); } -template<> -simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - simd::simd8x64 in_2(block_buf+64); - json_block block_1 = scanner.next(in_1); - json_block block_2 = scanner.next(in_2); - this->next(in_1, block_1); - this->next(in_2, block_2); - reader.advance(); +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return icelake::stage1::json_structural_indexer::index<128>(_buf, _len, *this, streaming); } -template<> -simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - json_block block_1 = scanner.next(in_1); - this->next(block_buf, block_1); - reader.advance(); +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return icelake::stage1::generic_validate_utf8(buf,len); } -template -error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { - buf_block_reader reader(buf, len); - json_minifier minifier(dst); +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} - // Index the first n-1 blocks - while (reader.has_full_block()) { - minifier.step(reader.full_block(), reader); - } +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} - // Index the last (remainder) block, padded with spaces - uint8_t block[STEP_SIZE]; - size_t remaining_bytes = reader.get_remainder(block); - if (remaining_bytes > 0) { - // We do not want to write directly to the output stream. Rather, we write - // to a local buffer (for safety). - uint8_t out_block[STEP_SIZE]; - uint8_t * const guarded_dst{minifier.dst}; - minifier.dst = out_block; - minifier.step(block, reader); - size_t to_write = minifier.dst - out_block; - // In some cases, we could be enticed to consider the padded spaces - // as part of the string. This is fine as long as we do not write more - // than we consumed. - if(to_write > remaining_bytes) { to_write = remaining_bytes; } - memcpy(guarded_dst, out_block, to_write); - minifier.dst = guarded_dst + to_write; - } - return minifier.finish(dst, dst_len); +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return icelake::stringparsing::parse_string(src, dst, replacement_char); } -} // namespace stage1 -} // unnamed namespace -} // namespace icelake -} // namespace simdjson -/* end file src/generic/stage1/json_minifier.h */ -/* begin file src/generic/stage1/find_next_document_index.h */ -namespace simdjson { -namespace icelake { -namespace { +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return icelake::stringparsing::parse_wobbly_string(src, dst); +} -/** - * This algorithm is used to quickly identify the last structural position that - * makes up a complete document. - * - * It does this by going backwards and finding the last *document boundary* (a - * place where one value follows another without a comma between them). If the - * last document (the characters after the boundary) has an equal number of - * start and end brackets, it is considered complete. - * - * Simply put, we iterate over the structural characters, starting from - * the end. We consider that we found the end of a JSON document when the - * first element of the pair is NOT one of these characters: '{' '[' ':' ',' - * and when the second element is NOT one of these characters: '}' ']' ':' ','. - * - * This simple comparison works most of the time, but it does not cover cases - * where the batch's structural indexes contain a perfect amount of documents. - * In such a case, we do not have access to the structural index which follows - * the last document, therefore, we do not have access to the second element in - * the pair, and that means we cannot identify the last document. To fix this - * issue, we keep a count of the open and closed curly/square braces we found - * while searching for the pair. When we find a pair AND the count of open and - * closed curly/square braces is the same, we know that we just passed a - * complete document, therefore the last json buffer location is the end of the - * batch. - */ -simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { - // Variant: do not count separately, just figure out depth - if(parser.n_structural_indexes == 0) { return 0; } - auto arr_cnt = 0; - auto obj_cnt = 0; - for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { - auto idxb = parser.structural_indexes[i]; - switch (parser.buf[idxb]) { - case ':': - case ',': - continue; - case '}': - obj_cnt--; - continue; - case ']': - arr_cnt--; - continue; - case '{': - obj_cnt++; - break; - case '[': - arr_cnt++; - break; - } - auto idxa = parser.structural_indexes[i - 1]; - switch (parser.buf[idxa]) { - case '{': - case '[': - case ':': - case ',': - continue; - } - // Last document is complete, so the next document will appear after! - if (!arr_cnt && !obj_cnt) { - return parser.n_structural_indexes; - } - // Last document is incomplete; mark the document at i + 1 as the next one - return i; - } - // If we made it to the end, we want to finish counting to see if we have a full document. - switch (parser.buf[parser.structural_indexes[0]]) { - case '}': - obj_cnt--; - break; - case ']': - arr_cnt--; - break; - case '{': - obj_cnt++; - break; - case '[': - arr_cnt++; - break; - } - if (!arr_cnt && !obj_cnt) { - // We have a complete document. - return parser.n_structural_indexes; - } - return 0; +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); } -} // unnamed namespace } // namespace icelake } // namespace simdjson -/* end file src/generic/stage1/find_next_document_index.h */ + +/* including simdjson/icelake/end.h: #include */ +/* begin file simdjson/icelake/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "icelake" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/icelake/end.h */ + +#endif // SIMDJSON_SRC_ICELAKE_CPP +/* end file icelake.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_PPC64 +/* including ppc64.cpp: #include */ +/* begin file ppc64.cpp */ +#ifndef SIMDJSON_SRC_PPC64_CPP +#define SIMDJSON_SRC_PPC64_CPP + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* including simdjson/ppc64.h: #include */ +/* begin file simdjson/ppc64.h */ +#ifndef SIMDJSON_PPC64_H +#define SIMDJSON_PPC64_H + +/* including simdjson/ppc64/begin.h: #include "simdjson/ppc64/begin.h" */ +/* begin file simdjson/ppc64/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "ppc64" */ +#define SIMDJSON_IMPLEMENTATION ppc64 +/* including simdjson/ppc64/base.h: #include "simdjson/ppc64/base.h" */ +/* begin file simdjson/ppc64/base.h */ +#ifndef SIMDJSON_PPC64_BASE_H +#define SIMDJSON_PPC64_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace icelake { +/** + * Implementation for ALTIVEC (PPC64). + */ +namespace ppc64 { + +class implementation; + namespace { -namespace stage1 { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace -class bit_indexer { -public: - uint32_t *tail; +} // namespace ppc64 +} // namespace simdjson - simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} +#endif // SIMDJSON_PPC64_BASE_H +/* end file simdjson/ppc64/base.h */ +/* including simdjson/ppc64/intrinsics.h: #include "simdjson/ppc64/intrinsics.h" */ +/* begin file simdjson/ppc64/intrinsics.h */ +#ifndef SIMDJSON_PPC64_INTRINSICS_H +#define SIMDJSON_PPC64_INTRINSICS_H - // flatten out values in 'bits' assuming that they are are to have values of idx - // plus their position in the bitvector, and store these indexes at - // base_ptr[base] incrementing base as we go - // will potentially store extra values beyond end of valid bits, so base_ptr - // needs to be large enough to handle this - // - // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own - // version of the code. -#ifdef SIMDJSON_CUSTOM_BIT_INDEXER - simdjson_inline void write(uint32_t idx, uint64_t bits); +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +// These are defined by altivec.h in GCC toolchain, it is safe to undef them. +#ifdef bool +#undef bool +#endif + +#ifdef vector +#undef vector +#endif + +static_assert(sizeof(__vector unsigned char) <= simdjson::SIMDJSON_PADDING, "insufficient padding for ppc64"); + +#endif // SIMDJSON_PPC64_INTRINSICS_H +/* end file simdjson/ppc64/intrinsics.h */ +/* including simdjson/ppc64/bitmanipulation.h: #include "simdjson/ppc64/bitmanipulation.h" */ +/* begin file simdjson/ppc64/bitmanipulation.h */ +#ifndef SIMDJSON_PPC64_BITMANIPULATION_H +#define SIMDJSON_PPC64_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num - 1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; #else - simdjson_inline void write(uint32_t idx, uint64_t bits) { - // In some instances, the next branch is expensive because it is mispredicted. - // Unfortunately, in other cases, - // it helps tremendously. - if (bits == 0) - return; -#if SIMDJSON_PREFER_REVERSE_BITS - /** - * ARM lacks a fast trailing zero instruction, but it has a fast - * bit reversal instruction and a fast leading zero instruction. - * Thus it may be profitable to reverse the bits (once) and then - * to rely on a sequence of instructions that call the leading - * zero instruction. - * - * Performance notes: - * The chosen routine is not optimal in terms of data dependency - * since zero_leading_bit might require two instructions. However, - * it tends to minimize the total number of instructions which is - * beneficial. - */ + return __builtin_clzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} - uint64_t rev_bits = reverse_bits(bits); - int cnt = static_cast(count_ones(bits)); - int i = 0; - // Do the first 8 all together - for (; i<8; i++) { - int lz = leading_zeroes(rev_bits); - this->tail[i] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } - // Do the next 8 all together (we hope in most cases it won't happen at all - // and the branch is easily predicted). - if (simdjson_unlikely(cnt > 8)) { - i = 8; - for (; i<16; i++) { - int lz = leading_zeroes(rev_bits); - this->tail[i] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline int count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num); // Visual Studio wants two underscores +} +#else +simdjson_inline int count_ones(uint64_t input_num) { + return __builtin_popcountll(input_num); +} +#endif +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} - // Most files don't have 16+ structurals per block, so we take several basically guaranteed - // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) - // or the start of a value ("abc" true 123) every four characters. - if (simdjson_unlikely(cnt > 16)) { - i = 16; - while (rev_bits != 0) { - int lz = leading_zeroes(rev_bits); - this->tail[i++] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } - } - } - this->tail += cnt; -#else // SIMDJSON_PREFER_REVERSE_BITS - /** - * Under recent x64 systems, we often have both a fast trailing zero - * instruction and a fast 'clear-lower-bit' instruction so the following - * algorithm can be competitive. - */ +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson - int cnt = static_cast(count_ones(bits)); - // Do the first 8 all together - for (int i=0; i<8; i++) { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); - } +#endif // SIMDJSON_PPC64_BITMANIPULATION_H +/* end file simdjson/ppc64/bitmanipulation.h */ +/* including simdjson/ppc64/bitmask.h: #include "simdjson/ppc64/bitmask.h" */ +/* begin file simdjson/ppc64/bitmask.h */ +#ifndef SIMDJSON_PPC64_BITMASK_H +#define SIMDJSON_PPC64_BITMASK_H - // Do the next 8 all together (we hope in most cases it won't happen at all - // and the branch is easily predicted). - if (simdjson_unlikely(cnt > 8)) { - for (int i=8; i<16; i++) { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); - } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // Most files don't have 16+ structurals per block, so we take several basically guaranteed - // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) - // or the start of a value ("abc" true 123) every four characters. - if (simdjson_unlikely(cnt > 16)) { - int i = 16; - do { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); - i++; - } while (i < cnt); - } - } +namespace simdjson { +namespace ppc64 { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is +// encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + // You can use the version below, however gcc sometimes miscompiles + // vec_pmsum_be, it happens somewhere around between 8 and 9th version. + // The performance boost was not noticeable, falling back to a usual + // implementation. + // __vector unsigned long long all_ones = {~0ull, ~0ull}; + // __vector unsigned long long mask = {bitmask, 0}; + // // Clang and GCC return different values for pmsum for ull so cast it to one. + // // Generally it is not specified by ALTIVEC ISA what is returned by + // // vec_pmsum_be. + // #if defined(__LITTLE_ENDIAN__) + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[0]); + // #else + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[1]); + // #endif + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson - this->tail += cnt; #endif - } -#endif // SIMDJSON_CUSTOM_BIT_INDEXER +/* end file simdjson/ppc64/bitmask.h */ +/* including simdjson/ppc64/numberparsing_defs.h: #include "simdjson/ppc64/numberparsing_defs.h" */ +/* begin file simdjson/ppc64/numberparsing_defs.h */ +#ifndef SIMDJSON_PPC64_NUMBERPARSING_DEFS_H +#define SIMDJSON_PPC64_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -}; +#include -class json_structural_indexer { -public: - /** - * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. - * - * @param partial Setting the partial parameter to true allows the find_structural_bits to - * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If - * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. - */ - template - static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; +#if defined(__linux__) +#include +#elif defined(__FreeBSD__) +#include +#endif -private: - simdjson_inline json_structural_indexer(uint32_t *structural_indexes); - template - simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; - simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); - simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); +namespace simdjson { +namespace ppc64 { +namespace numberparsing { + +// we don't have appropriate instructions, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); +#ifdef __BIG_ENDIAN__ +#if defined(__linux__) + val = bswap_64(val); +#elif defined(__FreeBSD__) + val = bswap64(val); +#endif +#endif + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} - json_scanner scanner{}; - utf8_checker checker{}; - bit_indexer indexer; - uint64_t prev_structurals = 0; - uint64_t unescaped_chars_error = 0; +} // namespace numberparsing +} // namespace ppc64 +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_PPC64_NUMBERPARSING_DEFS_H +/* end file simdjson/ppc64/numberparsing_defs.h */ +/* including simdjson/ppc64/simd.h: #include "simdjson/ppc64/simd.h" */ +/* begin file simdjson/ppc64/simd.h */ +#ifndef SIMDJSON_PPC64_SIMD_H +#define SIMDJSON_PPC64_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace ppc64 { +namespace { +namespace simd { + +using __m128i = __vector unsigned char; + +template struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i &() const { + return this->value; + } + simdjson_inline operator __m128i &() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { + return vec_or(this->value, (__m128i)other); + } + simdjson_inline Child operator&(const Child other) const { + return vec_and(this->value, (__m128i)other); + } + simdjson_inline Child operator^(const Child other) const { + return vec_xor(this->value, (__m128i)other); + } + simdjson_inline Child bit_andnot(const Child other) const { + return vec_andc(this->value, (__m128i)other); + } + simdjson_inline Child &operator|=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast | other; + return *this_cast; + } + simdjson_inline Child &operator&=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast & other; + return *this_cast; + } + simdjson_inline Child &operator^=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast ^ other; + return *this_cast; + } }; -simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} +template > +struct base8 : base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; -// Skip the last character if it is partial -simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { - if (simdjson_unlikely(len < 3)) { - switch (len) { - case 2: - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left - return len; - case 1: - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - return len; - case 0: - return len; - } + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { + return (__m128i)vec_cmpeq(lhs.value, (__m128i)rhs); } - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left - if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left - return len; -} -// -// PERF NOTES: -// We pipe 2 inputs through these stages: -// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load -// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. -// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. -// The output of step 1 depends entirely on this information. These functions don't quite use -// up enough CPU: the second half of the functions is highly serial, only using 1 execution core -// at a time. The second input's scans has some dependency on the first ones finishing it, but -// they can make a lot of progress before they need that information. -// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that -// to finish: utf-8 checks and generating the output from the last iteration. -// -// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all -// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough -// workout. -// -template -error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { - if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } - // We guard the rest of the code so that we can assume that len > 0 throughout. - if (len == 0) { return EMPTY; } - if (is_streaming(partial)) { - len = trim_partial_utf8(buf, len); - // If you end up with an empty window after trimming - // the partial UTF-8 bytes, then chances are good that you - // have an UTF-8 formatting error. - if(len == 0) { return UTF8_ERROR; } + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(simd8 prev_chunk) const { + __m128i chunk = this->value; +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve(this->value); + prev_chunk = (__m128i)vec_reve((__m128i)prev_chunk); +#endif + chunk = (__m128i)vec_sld((__m128i)prev_chunk, (__m128i)chunk, 16 - N); +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve((__m128i)chunk); +#endif + return chunk; } - buf_block_reader reader(buf, len); - json_structural_indexer indexer(parser.structural_indexes.get()); +}; - // Read all but the last block - while (reader.has_full_block()) { - indexer.step(reader.full_block(), reader); +// SIMD byte mask type (returned by things like eq and gt) +template <> struct simd8 : base8 { + static simdjson_inline simd8 splat(bool _value) { + return (__m128i)vec_splats((unsigned char)(-(!!_value))); } - // Take care of the last block (will always be there unless file is empty which is - // not supposed to happen.) - uint8_t block[STEP_SIZE]; - if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } - indexer.step(block, reader); - return indexer.finish(parser, reader.block_index(), len, partial); -} -template<> -simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { - simd::simd8x64 in_1(block); - simd::simd8x64 in_2(block+64); - json_block block_1 = scanner.next(in_1); - json_block block_2 = scanner.next(in_2); - this->next(in_1, block_1, reader.block_index()); - this->next(in_2, block_2, reader.block_index()+64); - reader.advance(); -} + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) + : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) + : base8(splat(_value)) {} -template<> -simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { - simd::simd8x64 in_1(block); - json_block block_1 = scanner.next(in_1); - this->next(in_1, block_1, reader.block_index()); - reader.advance(); -} + simdjson_inline int to_bitmask() const { + __vector unsigned long long result; + const __m128i perm_mask = {0x78, 0x70, 0x68, 0x60, 0x58, 0x50, 0x48, 0x40, + 0x38, 0x30, 0x28, 0x20, 0x18, 0x10, 0x08, 0x00}; -simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { - uint64_t unescaped = in.lteq(0x1F); -#if SIMDJSON_UTF8VALIDATION - checker.check_next_input(in); + result = ((__vector unsigned long long)vec_vbpermq((__m128i)this->value, + (__m128i)perm_mask)); +#ifdef __LITTLE_ENDIAN__ + return static_cast(result[1]); +#else + return static_cast(result[0]); #endif - indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser - prev_structurals = block.structural_start(); - unescaped_chars_error |= block.non_quote_inside_string(unescaped); -} + } + simdjson_inline bool any() const { + return !vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline simd8 operator~() const { + return this->value ^ (__m128i)splat(true); + } +}; -simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { - // Write out the final iteration's structurals - indexer.write(uint32_t(idx-64), prev_structurals); - error_code error = scanner.finish(); - // We deliberately break down the next expression so that it is - // human readable. - const bool should_we_exit = is_streaming(partial) ? - ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING - : (error != SUCCESS); // if partial is false, we must have SUCCESS - const bool have_unclosed_string = (error == UNCLOSED_STRING); - if (simdjson_unlikely(should_we_exit)) { return error; } +template struct base8_numeric : base8 { + static simdjson_inline simd8 splat(T value) { + (void)value; + return (__m128i)vec_splats(value); + } + static simdjson_inline simd8 zero() { return splat(0); } + static simdjson_inline simd8 load(const T values[16]) { + return (__m128i)(vec_vsx_ld(0, reinterpret_cast(values))); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16(T v0, T v1, T v2, T v3, T v4, + T v5, T v6, T v7, T v8, T v9, + T v10, T v11, T v12, T v13, + T v14, T v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, + v14, v15); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) + : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { + vec_vsx_st(this->value, 0, reinterpret_cast<__m128i *>(dst)); + } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { + return (__m128i)((__m128i)this->value + (__m128i)other); + } + simdjson_inline simd8 operator-(const simd8 other) const { + return (__m128i)((__m128i)this->value - (__m128i)other); + } + simdjson_inline simd8 &operator+=(const simd8 other) { + *this = *this + other; + return *static_cast *>(this); + } + simdjson_inline simd8 &operator-=(const simd8 other) { + *this = *this - other; + return *static_cast *>(this); + } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior + // for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return (__m128i)vec_perm((__m128i)lookup_table, (__m128i)lookup_table, this->value); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted + // as a bitset). Passing a 0 value for mask would be equivalent to writing out + // every byte to output. Only the first 16 - count_ones(mask) bytes of the + // result are significant but 16 bytes get written. Design consideration: it + // seems like a function with the signature simd8 compress(uint32_t mask) + // would be sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L *output) const { + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + using internal::thintable_epi8; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. +#ifdef __LITTLE_ENDIAN__ + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask1], thintable_epi8[mask2]}; +#else + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask2], thintable_epi8[mask1]}; + shufmask = (__m128i)vec_reve((__m128i)shufmask); +#endif + // we increment by 0x08 the second half of the mask + shufmask = ((__m128i)shufmask) + + ((__m128i)(__vector int){0, 0, 0x08080808, 0x08080808}); + + // this is the version "nearly pruned" + __m128i pruned = vec_perm(this->value, this->value, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + vec_vsx_ld(0, reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = vec_perm(pruned, (__m128i)vec_splats(0), compactmask); + vec_vsx_st(answer, 0, reinterpret_cast<__m128i *>(output)); + } + + template + simdjson_inline simd8 + lookup_16(L replace0, L replace1, L replace2, L replace3, L replace4, + L replace5, L replace6, L replace7, L replace8, L replace9, + L replace10, L replace11, L replace12, L replace13, L replace14, + L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, replace4, replace5, replace6, + replace7, replace8, replace9, replace10, replace11, replace12, + replace13, replace14, replace15)); + } +}; - if (unescaped_chars_error) { - return UNESCAPED_CHARS; +// Signed bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8(int8_t v0, int8_t v1, int8_t v2, int8_t v3, + int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) + : simd8((__m128i)(__vector signed char){v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10, v11, v12, v13, v14, + v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, + int8_t v6, int8_t v7, int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Order-sensitive comparisons + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return (__m128i)vec_cmpgt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return (__m128i)vec_cmplt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); } - parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); - /*** - * The On Demand API requires special padding. - * - * This is related to https://github.com/simdjson/simdjson/issues/906 - * Basically, we want to make sure that if the parsing continues beyond the last (valid) - * structural character, it quickly stops. - * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. - * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing - * continues, then it must be [,] or }. - * Suppose it is ] or }. We backtrack to the first character, what could it be that would - * not trigger an error? It could be ] or } but no, because you can't start a document that way. - * It can't be a comma, a colon or any simple value. So the only way we could continue is - * if the repeated character is [. But if so, the document must start with [. But if the document - * starts with [, it should end with ]. If we enforce that rule, then we would get - * ][[ which is invalid. - * - * This is illustrated with the test array_iterate_unclosed_error() on the following input: - * R"({ "a": [,,)" - **/ - parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final - parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); - parser.structural_indexes[parser.n_structural_indexes + 2] = 0; - parser.next_structural_index = 0; - // a valid JSON file cannot have zero structural indexes - we should have found something - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { - return EMPTY; +}; + +// Unsigned bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline + simd8(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, + uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, uint8_t v10, + uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15) + : simd8((__m128i){v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, + uint8_t v5, uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, + uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, + uint8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Saturated math + simdjson_inline simd8 + saturating_add(const simd8 other) const { + return (__m128i)vec_adds(this->value, (__m128i)other); + } + simdjson_inline simd8 + saturating_sub(const simd8 other) const { + return (__m128i)vec_subs(this->value, (__m128i)other); + } + + // Order-specific operations + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max(this->value, (__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min(this->value, (__m128i)other); + } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + gt_bits(const simd8 other) const { + return this->saturating_sub(other); + } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + lt_bits(const simd8 other) const { + return other.saturating_sub(*this); + } + simdjson_inline simd8 + operator<=(const simd8 other) const { + return other.max_val(*this) == other; + } + simdjson_inline simd8 + operator>=(const simd8 other) const { + return other.min_val(*this) == other; + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { + return (__m128i)vec_cmpeq(this->value, (__m128i)vec_splats(uint8_t(0))); + } + simdjson_inline simd8 bits_not_set(simd8 bits) const { + return (*this & bits).bits_not_set(); + } + simdjson_inline simd8 any_bits_set() const { + return ~this->bits_not_set(); + } + simdjson_inline simd8 any_bits_set(simd8 bits) const { + return ~this->bits_not_set(bits); + } + simdjson_inline bool bits_not_set_anywhere() const { + return vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere() const { + return !bits_not_set_anywhere(); + } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { + return vec_all_eq(vec_and(this->value, (__m128i)bits), + (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { + return !bits_not_set_anywhere(bits); + } + template simdjson_inline simd8 shr() const { + return simd8( + (__m128i)vec_sr(this->value, (__m128i)vec_splat_u8(N))); + } + template simdjson_inline simd8 shl() const { + return simd8( + (__m128i)vec_sl(this->value, (__m128i)vec_splat_u8(N))); } - if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { - return UNEXPECTED_ERROR; +}; + +template struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, + "PPC64 kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64 &o) = delete; // no copy allowed + simd8x64 & + operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, + const simd8 chunk2, const simd8 chunk3) + : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) + : chunks{simd8::load(ptr), simd8::load(ptr + 16), + simd8::load(ptr + 32), simd8::load(ptr + 48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr + sizeof(simd8) * 0); + this->chunks[1].store(ptr + sizeof(simd8) * 1); + this->chunks[2].store(ptr + sizeof(simd8) * 2); + this->chunks[3].store(ptr + sizeof(simd8) * 3); } - if (partial == stage1_mode::streaming_partial) { - // If we have an unclosed string, then the last structural - // will be the quote and we want to make sure to omit it. - if(have_unclosed_string) { - parser.n_structural_indexes--; - // a valid JSON file cannot have zero structural indexes - we should have found something - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } - } - // We truncate the input to the end of the last complete document (or zero). - auto new_structural_indexes = find_next_document_index(parser); - if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { - if(parser.structural_indexes[0] == 0) { - // If the buffer is partial and we started at index 0 but the document is - // incomplete, it's too big to parse. - return CAPACITY; - } else { - // It is possible that the document could be parsed, we just had a lot - // of white space. - parser.n_structural_indexes = 0; - return EMPTY; - } - } - parser.n_structural_indexes = new_structural_indexes; - } else if (partial == stage1_mode::streaming_final) { - if(have_unclosed_string) { parser.n_structural_indexes--; } - // We truncate the input to the end of the last complete document (or zero). - // Because partial == stage1_mode::streaming_final, it means that we may - // silently ignore trailing garbage. Though it sounds bad, we do it - // deliberately because many people who have streams of JSON documents - // will truncate them for processing. E.g., imagine that you are uncompressing - // the data from a size file or receiving it in chunks from the network. You - // may not know where exactly the last document will be. Meanwhile the - // document_stream instances allow people to know the JSON documents they are - // parsing (see the iterator.source() method). - parser.n_structural_indexes = find_next_document_index(parser); - // We store the initial n_structural_indexes so that the client can see - // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, - // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, - // otherwise, it will copy some prior index. - parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; - // This next line is critical, do not change it unless you understand what you are - // doing. - parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { - // We tolerate an unclosed string at the very end of the stream. Indeed, users - // often load their data in bulk without being careful and they want us to ignore - // the trailing garbage. - return EMPTY; - } + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | + (this->chunks[2] | this->chunks[3]); } - checker.check_eof(); - return checker.errors(); + + simdjson_inline uint64_t compress(uint64_t mask, T *output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), + output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), + output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), + output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r1 = this->chunks[1].to_bitmask(); + uint64_t r2 = this->chunks[2].to_bitmask(); + uint64_t r3 = this->chunks[3].to_bitmask(); + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] == mask, this->chunks[1] == mask, + this->chunks[2] == mask, this->chunks[3] == mask) + .to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64(this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3]) + .to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] <= mask, this->chunks[1] <= mask, + this->chunks[2] <= mask, this->chunks[3] <= mask) + .to_bitmask(); + } +}; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_SIMD_INPUT_H +/* end file simdjson/ppc64/simd.h */ +/* including simdjson/ppc64/stringparsing_defs.h: #include "simdjson/ppc64/stringparsing_defs.h" */ +/* begin file simdjson/ppc64/stringparsing_defs.h */ +#ifndef SIMDJSON_PPC64_STRINGPARSING_DEFS_H +#define SIMDJSON_PPC64_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/simd.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote + copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { + return ((bs_bits - 1) & quote_bits) != 0; + } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { + return trailing_zeroes(quote_bits); + } + simdjson_inline int backslash_index() { + return trailing_zeroes(bs_bits); + } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote +backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), + "backslash and quote finder must process fewer than " + "SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on + // PPC; therefore, we smash them together into a 64-byte mask and get the + // bitmask from there. + uint64_t bs_and_quote = + simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; } -} // namespace stage1 } // unnamed namespace -} // namespace icelake +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/json_structural_indexer.h */ -// We must not forget to undefine it now: -#undef SIMDJSON_CUSTOM_BIT_INDEXER + +#endif // SIMDJSON_PPC64_STRINGPARSING_DEFS_H +/* end file simdjson/ppc64/stringparsing_defs.h */ + +#define SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT 1 +/* end file simdjson/ppc64/begin.h */ +/* including simdjson/generic/amalgamated.h for ppc64: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for ppc64 */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for ppc64: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { + +struct open_container; +class dom_parser_implementation; /** - * We provide a custom version of bit_indexer::write using - * naked intrinsics. - * TODO: make this code more elegant. + * The type of a JSON number */ -// Under GCC 12, the intrinsic _mm512_extracti32x4_epi32 may generate 'maybe uninitialized'. -// as a workaround, we disable warnings within the following function. -SIMDJSON_PUSH_DISABLE_ALL_WARNINGS -namespace simdjson { namespace icelake { namespace { namespace stage1 { -simdjson_inline void bit_indexer::write(uint32_t idx, uint64_t bits) { - // In some instances, the next branch is expensive because it is mispredicted. - // Unfortunately, in other cases, - // it helps tremendously. - if (bits == 0) { return; } +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; - const __m512i indexes = _mm512_maskz_compress_epi8(bits, _mm512_set_epi32( - 0x3f3e3d3c, 0x3b3a3938, 0x37363534, 0x33323130, - 0x2f2e2d2c, 0x2b2a2928, 0x27262524, 0x23222120, - 0x1f1e1d1c, 0x1b1a1918, 0x17161514, 0x13121110, - 0x0f0e0d0c, 0x0b0a0908, 0x07060504, 0x03020100 - )); - const __m512i start_index = _mm512_set1_epi32(idx); +} // namespace ppc64 +} // namespace simdjson - const auto count = count_ones(bits); - __m512i t0 = _mm512_cvtepu8_epi32(_mm512_castsi512_si128(indexes)); - _mm512_storeu_si512(this->tail, _mm512_add_epi32(t0, start_index)); +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for ppc64 */ +/* including simdjson/generic/jsoncharutils.h for ppc64: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H - if(count > 16) { - const __m512i t1 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 1)); - _mm512_storeu_si512(this->tail + 16, _mm512_add_epi32(t1, start_index)); - if(count > 32) { - const __m512i t2 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 2)); - _mm512_storeu_si512(this->tail + 32, _mm512_add_epi32(t2, start_index)); - if(count > 48) { - const __m512i t3 = _mm512_cvtepu8_epi32(_mm512_extracti32x4_epi32(indexes, 3)); - _mm512_storeu_si512(this->tail + 48, _mm512_add_epi32(t3, start_index)); - } - } - } - this->tail += count; -} -}}}} -SIMDJSON_POP_DISABLE_WARNINGS +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -/* begin file src/generic/stage1/utf8_validator.h */ namespace simdjson { -namespace icelake { +namespace ppc64 { namespace { -namespace stage1 { +namespace jsoncharutils { -/** - * Validates that the string is actual UTF-8. - */ -template -bool generic_validate_utf8(const uint8_t * input, size_t length) { - checker c{}; - buf_block_reader<64> reader(input, length); - while (reader.has_full_block()) { - simd::simd8x64 in(reader.full_block()); - c.check_next_input(in); - reader.advance(); - } - uint8_t block[64]{}; - reader.get_remainder(block); - simd::simd8x64 in(block); - c.check_next_input(in); - reader.advance(); - c.check_eof(); - return c.errors() == error_code::SUCCESS; +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r } -bool generic_validate_utf8(const char * input, size_t length) { - return generic_validate_utf8(reinterpret_cast(input),length); +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; } +#endif -} // namespace stage1 +} // namespace jsoncharutils } // unnamed namespace -} // namespace icelake +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/utf8_validator.h */ -// -// Stage 2 -// -/* begin file src/generic/stage2/stringparsing.h */ -// This file contains the common code every implementation uses -// It is intended to be included multiple times and compiled multiple times +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for ppc64 */ +/* including simdjson/generic/atomparsing.h for ppc64: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include namespace simdjson { -namespace icelake { +namespace ppc64 { namespace { /// @private -namespace stringparsing { - -// begin copypasta -// These chars yield themselves: " \ / -// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab -// u not handled in this table as it's complex -static const uint8_t escape_map[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. - 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. - 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. +namespace atomparsing { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -}; -// handle a unicode codepoint -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, - uint8_t **dst_ptr, bool allow_replacement) { - // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) - constexpr uint32_t substitution_code_point = 0xfffd; - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; - - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - - // We have already checked that the high surrogate is valid and - // (code_point - 0xd800) < 1024. - // - // Check that code_point_2 is in the range 0xdc00..0xdfff - // and that code_point_2 was parsed from valid hex. - uint32_t low_bit = code_point_2 - 0xdc00; - if (low_bit >> 10) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } - - } - } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { - // If we encounter a low surrogate (not preceded by a high surrogate) - // then we have an error. - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); } +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} -// handle a unicode codepoint using the wobbly convention -// https://simonsapin.github.io/wtf-8/ -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, - uint8_t **dst_ptr) { - // It is not ideal that this function is nearly identical to handle_unicode_codepoint. - // - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - uint32_t low_bit = code_point_2 - 0xdc00; - if ((low_bit >> 10) == 0) { - code_point = - (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } - } - } +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; } +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} -/** - * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There - * must be an unescaped quote terminating the string. It returns the final output - * position as pointer. In case of error (e.g., the string has bad escaped codes), - * then null_nullptrptr is returned. It is assumed that the output buffer is large - * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + - * SIMDJSON_PADDING bytes. - */ -simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; } -simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { - // It is not ideal that this function is nearly identical to parse_string. - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint_wobbly(&src, &dst)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } } -} // namespace stringparsing +} // namespace atomparsing } // unnamed namespace -} // namespace icelake +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage2/stringparsing.h */ -/* begin file src/generic/stage2/tape_builder.h */ -/* begin file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/logger.h */ -// This is for an internal-only stage 2 specific logger. -// Set LOG_ENABLED = true to log what stage 2 is doing! + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for ppc64 */ +/* including simdjson/generic/dom_parser_implementation.h for ppc64: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace icelake { -namespace { -namespace logger { +namespace ppc64 { - static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); -#if SIMDJSON_VERBOSE_LOGGING - static constexpr const bool LOG_ENABLED = true; -#else - static constexpr const bool LOG_ENABLED = false; -#endif - static constexpr const int LOG_EVENT_LEN = 20; - static constexpr const int LOG_BUFFER_LEN = 30; - static constexpr const int LOG_SMALL_BUFFER_LEN = 10; - static constexpr const int LOG_INDEX_LEN = 5; +}; - static int log_depth; // Not threadsafe. Log only. +} // namespace ppc64 +} // namespace simdjson - // Helper to turn unprintable or newline characters into spaces - static simdjson_inline char printable_char(char c) { - if (c >= 0x20) { - return c; - } else { - return ' '; - } - } +namespace simdjson { +namespace ppc64 { - // Print the header and set up log_start - static simdjson_inline void log_start() { - if (LOG_ENABLED) { - log_depth = 0; - printf("\n"); - printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); - printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); - } - } +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} - simdjson_unused static simdjson_inline void log_string(const char *message) { - if (LOG_ENABLED) { - printf("%s\n", message); - } - } +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } - // Logs a single line from the stage 2 DOM parser - template - static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { - if (LOG_ENABLED) { - printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); - auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; - auto next_index = structurals.next_structural; - auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); - auto next = &structurals.buf[*next_index]; - { - // Print the next N characters in the buffer. - printf("| "); - // Otherwise, print the characters starting from the buffer position. - // Print spaces for unprintable or newline characters. - for (int i=0;i : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { /** - * Walk the JSON document. - * - * The visitor receives callbacks when values are encountered. All callbacks pass the iterator as - * the first parameter; some callbacks have other parameters as well: - * - * - visit_document_start() - at the beginning. - * - visit_document_end() - at the end (if things were successful). - * - * - visit_array_start() - at the start `[` of a non-empty array. - * - visit_array_end() - at the end `]` of a non-empty array. - * - visit_empty_array() - when an empty array is encountered. - * - * - visit_object_end() - at the start `]` of a non-empty object. - * - visit_object_start() - at the end `]` of a non-empty object. - * - visit_empty_object() - when an empty object is encountered. - * - visit_key(const uint8_t *key) - when a key in an object field is encountered. key is - * guaranteed to point at the first quote of the string (`"key"`). - * - visit_primitive(const uint8_t *value) - when a value is a string, number, boolean or null. - * - visit_root_primitive(iter, uint8_t *value) - when the top-level value is a string, number, boolean or null. - * - * - increment_count(iter) - each time a value is found in an array or object. + * Create a new empty result with error = UNINITIALIZED. */ - template - simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; + simdjson_inline implementation_simdjson_result_base() noexcept = default; /** - * Create an iterator capable of walking a JSON document. - * - * The document must have already passed through stage 1. + * Create a new error result. */ - simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; /** - * Look at the next token. - * - * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). - * - * They may include invalid JSON as well (such as `1.2.3` or `ture`). + * Create a new successful result. */ - simdjson_inline const uint8_t *peek() const noexcept; + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + /** - * Advance to the next token. - * - * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). - * - * They may include invalid JSON as well (such as `1.2.3` or `ture`). + * Create a new result with both things (use if you don't want to branch when creating the result). */ - simdjson_inline const uint8_t *advance() noexcept; + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + /** - * Get the remaining length of the document, from the start of the current token. + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. */ - simdjson_inline size_t remaining_len() const noexcept; + simdjson_inline void tie(T &value, error_code &error) && noexcept; + /** - * Check if we are at the end of the document. + * Move the value to the provided variable. * - * If this is true, there are no more tokens. + * @param value The variable to assign the value to. May not be set if there is an error. */ - simdjson_inline bool at_eof() const noexcept; + simdjson_inline error_code get(T &value) && noexcept; + /** - * Check if we are at the beginning of the document. + * The error. */ - simdjson_inline bool at_beginning() const noexcept; - simdjson_inline uint8_t last_structural() const noexcept; + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS /** - * Log that a value has been found. + * Get the result value. * - * Set LOG_ENABLED=true in logger.h to see logging. + * @throw simdjson_error if there was an error. */ - simdjson_inline void log_value(const char *type) const noexcept; + simdjson_inline T& value() & noexcept(false); + /** - * Log the start of a multipart value. + * Take the result value (move it). * - * Set LOG_ENABLED=true in logger.h to see logging. + * @throw simdjson_error if there was an error. */ - simdjson_inline void log_start_value(const char *type) const noexcept; + simdjson_inline T&& value() && noexcept(false); + /** - * Log the end of a multipart value. + * Take the result value (move it). * - * Set LOG_ENABLED=true in logger.h to see logging. + * @throw simdjson_error if there was an error. */ - simdjson_inline void log_end_value(const char *type) const noexcept; + simdjson_inline T&& take_value() && noexcept(false); + /** - * Log an error. + * Cast to the value (will throw on error). * - * Set LOG_ENABLED=true in logger.h to see logging. + * @throw simdjson_error if there was an error. */ - simdjson_inline void log_error(const char *error) const noexcept; - - template - simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; - template - simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; -}; - -template -simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { - logger::log_start(); - - // - // Start the document - // - if (at_eof()) { return EMPTY; } - log_start_value("document"); - SIMDJSON_TRY( visitor.visit_document_start(*this) ); - - // - // Read first value - // - { - auto value = advance(); - - // Make sure the outer object or array is closed before continuing; otherwise, there are ways we - // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 - if (!STREAMING) { - switch (*value) { - case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; - case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; - } - } - - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; - } - } - goto document_end; + simdjson_inline operator T&&() && noexcept(false); -// -// Object parser states -// -object_begin: - log_start_value("object"); - depth++; - if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } - dom_parser.is_array[depth] = false; - SIMDJSON_TRY( visitor.visit_object_start(*this) ); - { - auto key = advance(); - if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } - SIMDJSON_TRY( visitor.increment_count(*this) ); - SIMDJSON_TRY( visitor.visit_key(*this, key) ); - } +#endif // SIMDJSON_EXCEPTIONS -object_field: - if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } - { - auto value = advance(); - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; - } - } + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base -object_continue: - switch (*advance()) { - case ',': - SIMDJSON_TRY( visitor.increment_count(*this) ); - { - auto key = advance(); - if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } - SIMDJSON_TRY( visitor.visit_key(*this, key) ); - } - goto object_field; - case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; - default: log_error("No comma between object fields"); return TAPE_ERROR; - } +} // namespace ppc64 +} // namespace simdjson -scope_end: - depth--; - if (depth == 0) { goto document_end; } - if (dom_parser.is_array[depth]) { goto array_continue; } - goto object_continue; +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for ppc64 */ +/* including simdjson/generic/numberparsing.h for ppc64: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H -// -// Array parser states -// -array_begin: - log_start_value("array"); - depth++; - if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } - dom_parser.is_array[depth] = true; - SIMDJSON_TRY( visitor.visit_array_start(*this) ); - SIMDJSON_TRY( visitor.increment_count(*this) ); +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -array_value: +#include +#include +#include + +namespace simdjson { +namespace ppc64 { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif { - auto value = advance(); - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; } - } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; -array_continue: - switch (*advance()) { - case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; - case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; - default: log_error("Missing comma between array values"); return TAPE_ERROR; - } -document_end: - log_end_value("document"); - SIMDJSON_TRY( visitor.visit_document_end(*this) ); + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; - dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); - // If we didn't make it to the end, it's an error - if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { - log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); - return TAPE_ERROR; + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } } - return SUCCESS; - -} // walk_document() + mantissa += mantissa & 1; + mantissa >>= 1; -simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) - : buf{_dom_parser.buf}, - next_structural{&_dom_parser.structural_indexes[start_structural_index]}, - dom_parser{_dom_parser} { + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; } -simdjson_inline const uint8_t *json_iterator::peek() const noexcept { - return &buf[*(next_structural)]; -} -simdjson_inline const uint8_t *json_iterator::advance() noexcept { - return &buf[*(next_structural++)]; +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); } -simdjson_inline size_t json_iterator::remaining_len() const noexcept { - return dom_parser.len - *(next_structural-1); + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; } -simdjson_inline bool json_iterator::at_eof() const noexcept { - return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; } -simdjson_inline bool json_iterator::at_beginning() const noexcept { - return next_structural == dom_parser.structural_indexes.get(); + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; } -simdjson_inline uint8_t json_iterator::last_structural() const noexcept { - return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); } -simdjson_inline void json_iterator::log_value(const char *type) const noexcept { - logger::log_line(*this, "", type, ""); +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); } -simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { - logger::log_line(*this, "+", type, ""); - if (logger::LOG_ENABLED) { logger::log_depth++; } +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; } -simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { - if (logger::LOG_ENABLED) { logger::log_depth--; } - logger::log_line(*this, "-", type, ""); +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds } -simdjson_inline void json_iterator::log_error(const char *error) const noexcept { - logger::log_line(*this, "", "ERROR", error); +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; } -template -simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { - switch (*value) { - case '"': return visitor.visit_root_string(*this, value); - case 't': return visitor.visit_root_true_atom(*this, value); - case 'f': return visitor.visit_root_false_atom(*this, value); - case 'n': return visitor.visit_root_null_atom(*this, value); - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return visitor.visit_root_number(*this, value); - default: - log_error("Document starts with a non-value character"); - return TAPE_ERROR; +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } } + + return i; } -template -simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { - switch (*value) { - case '"': return visitor.visit_string(*this, value); - case 't': return visitor.visit_true_atom(*this, value); - case 'f': return visitor.visit_false_atom(*this, value); - case 'n': return visitor.visit_null_atom(*this, value); - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return visitor.visit_number(*this, value); - default: - log_error("Non-value found when value was expected!"); - return TAPE_ERROR; + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } } + + return i; } -} // namespace stage2 -} // unnamed namespace -} // namespace icelake -} // namespace simdjson -/* end file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/tape_writer.h */ -namespace simdjson { -namespace icelake { -namespace { -namespace stage2 { +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } -struct tape_writer { - /** The next place to write to tape */ - uint64_t *next_tape_loc; + return i; +} - /** Write a signed 64-bit value to tape. */ - simdjson_inline void append_s64(int64_t value) noexcept; +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); - /** Write an unsigned 64-bit value to tape. */ - simdjson_inline void append_u64(uint64_t value) noexcept; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); - /** Write a double value to tape. */ - simdjson_inline void append_double(double value) noexcept; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; - /** - * Append a tape entry (an 8-bit type,and 56 bits worth of value). - */ - simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); - /** - * Skip the current tape entry without writing. - * - * Used to skip the start of the container, since we'll come back later to fill it in when the - * container ends. - */ - simdjson_inline void skip() noexcept; + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } - /** - * Skip the number of tape entries necessary to write a large u64 or i64. - */ - simdjson_inline void skip_large_integer() noexcept; + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } - /** - * Skip the number of tape entries necessary to write a double. - */ - simdjson_inline void skip_double() noexcept; + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; - /** - * Write a value to a known location on tape. - * - * Used to go back and write out the start of a container after the container ends. - */ - simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } -private: - /** - * Append both the tape entry, and a supplementary value following it. Used for types that need - * all 64 bits, such as double and uint64_t. - */ - template - simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; -}; // struct number_writer + exponent += exp_neg ? 0-exp : exp; + } -simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { - append2(0, value, internal::tape_type::INT64); -} + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } -simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { - append(0, internal::tape_type::UINT64); - *next_tape_loc = value; - next_tape_loc++; -} + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; -/** Write a double value to tape. */ -simdjson_inline void tape_writer::append_double(double value) noexcept { - append2(0, value, internal::tape_type::DOUBLE); + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; } -simdjson_inline void tape_writer::skip() noexcept { - next_tape_loc++; +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); } -simdjson_inline void tape_writer::skip_large_integer() noexcept { - next_tape_loc += 2; +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; } -simdjson_inline void tape_writer::skip_double() noexcept { - next_tape_loc += 2; +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; } -simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { - *next_tape_loc = val | ((uint64_t(char(t))) << 56); - next_tape_loc++; -} +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); -template -simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { - append(val, t); - static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); - memcpy(next_tape_loc, &val2, sizeof(val2)); - next_tape_loc++; -} + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } -simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { - tape_loc = val | ((uint64_t(char(t))) << 56); -} + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } -} // namespace stage2 -} // unnamed namespace -} // namespace icelake -} // namespace simdjson -/* end file src/generic/stage2/tape_writer.h */ + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; -namespace simdjson { -namespace icelake { -namespace { -namespace stage2 { + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } -struct tape_builder { - template - simdjson_warn_unused static simdjson_inline error_code parse_document( - dom_parser_implementation &dom_parser, - dom::document &doc) noexcept; + exponent += exp_neg ? 0-exp : exp; + } - /** Called when a non-empty document starts. */ - simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; - /** Called when a non-empty document ends without error. */ - simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } - /** Called when a non-empty array starts. */ - simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; - /** Called when a non-empty array ends. */ - simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; - /** Called when an empty array is found. */ - simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; - /** Called when a non-empty object starts. */ - simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; - /** - * Called when a key in a field is encountered. - * - * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array - * will be called after this with the field value. - */ - simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; - /** Called when a non-empty object ends. */ - simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; - /** Called when an empty object is found. */ - simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} - /** - * Called when a string, number, boolean or null is found. - */ - simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; - /** - * Called when a string, number, boolean or null is found at the top level of a document (i.e. - * when there is no array or object and the entire document is a single string, number, boolean or - * null. - * - * This is separate from primitive() because simdjson's normal primitive parsing routines assume - * there is at least one more token after the value, which is only true in an array or object. - */ - simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; - simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } - simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } - /** Called each time a new field or element in an array or object is found. */ - simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; - /** Next location to write to tape */ - tape_writer tape; -private: - /** Next write location in the string buf for stage 2 parsing */ - uint8_t *current_string_buf_loc; + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } - simdjson_inline tape_builder(dom::document &doc) noexcept; + exponent += exp_neg ? 0-exp : exp; + } - simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; - simdjson_inline void start_container(json_iterator &iter) noexcept; - simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; - simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; - simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; - simdjson_inline void on_end_string(uint8_t *dst) noexcept; -}; // class tape_builder + if (*p != '"') { return NUMBER_ERROR; } -template -simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( - dom_parser_implementation &dom_parser, - dom::document &doc) noexcept { - dom_parser.doc = &doc; - json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); - tape_builder builder(doc); - return iter.walk_document(builder); -} + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { - return iter.visit_root_primitive(*this, value); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { - return iter.visit_primitive(*this, value); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { - return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { - return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { - return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { - return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { - constexpr uint32_t start_tape_index = 0; - tape.append(start_tape_index, internal::tape_type::ROOT); - tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { - return visit_string(iter, key, true); -} +} // namespace numberparsing -simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { - iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 - return SUCCESS; +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; } -simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} +} // namespace ppc64 +} // namespace simdjson -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { - iter.log_value(key ? "key" : "string"); - uint8_t *dst = on_start_string(iter); - dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. - if (dst == nullptr) { - iter.log_error("Invalid escape in string"); - return STRING_ERROR; - } - on_end_string(dst); - return SUCCESS; -} +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for ppc64 */ -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { - return visit_string(iter, value); -} +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for ppc64: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("number"); - return numberparsing::parse_number(value, tape); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { - // - // We need to make a copy to make sure that the string is space terminated. - // This is not about padding the input, which should already padded up - // to len + SIMDJSON_PADDING. However, we have no control at this stage - // on how the padding was done. What if the input string was padded with nulls? - // It is quite common for an input string to have an extra null character (C string). - // We do not want to allow 9\0 (where \0 is the null character) inside a JSON - // document, but the string "9\0" by itself is fine. So we make a copy and - // pad the input with spaces when we know that there is just one input element. - // This copy is relatively expensive, but it will almost never be called in - // practice unless you are in the strange scenario where you have many JSON - // documents made of single atoms. - // - std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); - if (copy.get() == nullptr) { return MEMALLOC; } - std::memcpy(copy.get(), value, iter.remaining_len()); - std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); - error_code error = visit_number(iter, copy.get()); - return error; +namespace simdjson { +namespace ppc64 { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("true"); - if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } - tape.append(0, internal::tape_type::TRUE_VALUE); - return SUCCESS; +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("true"); - if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } - tape.append(0, internal::tape_type::TRUE_VALUE); - return SUCCESS; +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("false"); - if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } - tape.append(0, internal::tape_type::FALSE_VALUE); - return SUCCESS; +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("false"); - if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } - tape.append(0, internal::tape_type::FALSE_VALUE); - return SUCCESS; +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("null"); - if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } - tape.append(0, internal::tape_type::NULL_VALUE); - return SUCCESS; +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("null"); - if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } - tape.append(0, internal::tape_type::NULL_VALUE); - return SUCCESS; +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); } -// private: +#endif // SIMDJSON_EXCEPTIONS -simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { - return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; } -simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { - auto start_index = next_tape_index(iter); - tape.append(start_index+2, start); - tape.append(start_index, end); - return SUCCESS; +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; } -simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { - iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); - iter.dom_parser.open_containers[iter.depth].count = 0; - tape.skip(); // We don't actually *write* the start element until the end. +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); } -simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { - // Write the ending tape element, pointing at the start location - const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; - tape.append(start_tape_index, end); - // Write the start tape element, pointing at the end location (and including count) - // count can overflow if it exceeds 24 bits... so we saturate - // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). - const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; - const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; - tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); - return SUCCESS; +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for ppc64 */ +/* end file simdjson/generic/amalgamated.h for ppc64 */ +/* including simdjson/ppc64/end.h: #include "simdjson/ppc64/end.h" */ +/* begin file simdjson/ppc64/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#undef SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT +/* undefining SIMDJSON_IMPLEMENTATION from "ppc64" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/ppc64/end.h */ + +#endif // SIMDJSON_PPC64_H +/* end file simdjson/ppc64.h */ +/* including simdjson/ppc64/implementation.h: #include */ +/* begin file simdjson/ppc64/implementation.h */ +#ifndef SIMDJSON_PPC64_IMPLEMENTATION_H +#define SIMDJSON_PPC64_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +/** + * Implementation for ALTIVEC (PPC64). + */ +namespace ppc64 { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() + : simdjson::implementation("ppc64", "PPC64 ALTIVEC", + internal::instruction_set::ALTIVEC) {} + + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, size_t max_length, + std::unique_ptr &dst) + const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, + uint8_t *dst, + size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, + size_t len) const noexcept final; +}; + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_IMPLEMENTATION_H +/* end file simdjson/ppc64/implementation.h */ + +/* including simdjson/ppc64/begin.h: #include */ +/* begin file simdjson/ppc64/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "ppc64" */ +#define SIMDJSON_IMPLEMENTATION ppc64 +/* including simdjson/ppc64/base.h: #include "simdjson/ppc64/base.h" */ +/* begin file simdjson/ppc64/base.h */ +#ifndef SIMDJSON_PPC64_BASE_H +#define SIMDJSON_PPC64_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Implementation for ALTIVEC (PPC64). + */ +namespace ppc64 { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_BASE_H +/* end file simdjson/ppc64/base.h */ +/* including simdjson/ppc64/intrinsics.h: #include "simdjson/ppc64/intrinsics.h" */ +/* begin file simdjson/ppc64/intrinsics.h */ +#ifndef SIMDJSON_PPC64_INTRINSICS_H +#define SIMDJSON_PPC64_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +// These are defined by altivec.h in GCC toolchain, it is safe to undef them. +#ifdef bool +#undef bool +#endif + +#ifdef vector +#undef vector +#endif + +static_assert(sizeof(__vector unsigned char) <= simdjson::SIMDJSON_PADDING, "insufficient padding for ppc64"); + +#endif // SIMDJSON_PPC64_INTRINSICS_H +/* end file simdjson/ppc64/intrinsics.h */ +/* including simdjson/ppc64/bitmanipulation.h: #include "simdjson/ppc64/bitmanipulation.h" */ +/* begin file simdjson/ppc64/bitmanipulation.h */ +#ifndef SIMDJSON_PPC64_BITMANIPULATION_H +#define SIMDJSON_PPC64_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num - 1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO } -simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { - // we advance the point, accounting for the fact that we have a NULL termination - tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); - return current_string_buf_loc + sizeof(uint32_t); +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline int count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num); // Visual Studio wants two underscores +} +#else +simdjson_inline int count_ones(uint64_t input_num) { + return __builtin_popcountll(input_num); } +#endif -simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { - uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); - // TODO check for overflow in case someone has a crazy string (>=4GB?) - // But only add the overflow check when the document itself exceeds 4GB - // Currently unneeded because we refuse to parse docs larger or equal to 4GB. - memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); - // NULL termination is still handy if you expect all your strings to - // be NULL terminated? It comes at a small cost - *dst = 0; - current_string_buf_loc = dst + 1; +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif } -} // namespace stage2 } // unnamed namespace -} // namespace icelake +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage2/tape_builder.h */ -// -// Implementation-specific overrides -// +#endif // SIMDJSON_PPC64_BITMANIPULATION_H +/* end file simdjson/ppc64/bitmanipulation.h */ +/* including simdjson/ppc64/bitmask.h: #include "simdjson/ppc64/bitmask.h" */ +/* begin file simdjson/ppc64/bitmask.h */ +#ifndef SIMDJSON_PPC64_BITMASK_H +#define SIMDJSON_PPC64_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace icelake { +namespace ppc64 { namespace { -namespace stage1 { -simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { - if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } - return find_escaped_branchless(backslash); +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is +// encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + // You can use the version below, however gcc sometimes miscompiles + // vec_pmsum_be, it happens somewhere around between 8 and 9th version. + // The performance boost was not noticeable, falling back to a usual + // implementation. + // __vector unsigned long long all_ones = {~0ull, ~0ull}; + // __vector unsigned long long mask = {bitmask, 0}; + // // Clang and GCC return different values for pmsum for ull so cast it to one. + // // Generally it is not specified by ALTIVEC ISA what is returned by + // // vec_pmsum_be. + // #if defined(__LITTLE_ENDIAN__) + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[0]); + // #else + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[1]); + // #endif + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; } -} // namespace stage1 } // unnamed namespace +} // namespace ppc64 +} // namespace simdjson -simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { - return icelake::stage1::json_minifier::minify<128>(buf, len, dst, dst_len); -} +#endif +/* end file simdjson/ppc64/bitmask.h */ +/* including simdjson/ppc64/numberparsing_defs.h: #include "simdjson/ppc64/numberparsing_defs.h" */ +/* begin file simdjson/ppc64/numberparsing_defs.h */ +#ifndef SIMDJSON_PPC64_NUMBERPARSING_DEFS_H +#define SIMDJSON_PPC64_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { - this->buf = _buf; - this->len = _len; - return icelake::stage1::json_structural_indexer::index<128>(_buf, _len, *this, streaming); -} +#include -simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { - return icelake::stage1::generic_validate_utf8(buf,len); -} +#if defined(__linux__) +#include +#elif defined(__FreeBSD__) +#include +#endif -simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); +namespace simdjson { +namespace ppc64 { +namespace numberparsing { + +// we don't have appropriate instructions, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); +#ifdef __BIG_ENDIAN__ +#if defined(__linux__) + val = bswap_64(val); +#elif defined(__FreeBSD__) + val = bswap64(val); +#endif +#endif + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; } -simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} +} // namespace numberparsing +} // namespace ppc64 +} // namespace simdjson -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { - return icelake::stringparsing::parse_string(src, dst, replacement_char); -} +#define SIMDJSON_SWAR_NUMBER_PARSING 1 -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { - return icelake::stringparsing::parse_wobbly_string(src, dst); -} +#endif // SIMDJSON_PPC64_NUMBERPARSING_DEFS_H +/* end file simdjson/ppc64/numberparsing_defs.h */ +/* including simdjson/ppc64/simd.h: #include "simdjson/ppc64/simd.h" */ +/* begin file simdjson/ppc64/simd.h */ +#ifndef SIMDJSON_PPC64_SIMD_H +#define SIMDJSON_PPC64_SIMD_H -simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { - auto error = stage1(_buf, _len, stage1_mode::regular); - if (error) { return error; } - return stage2(_doc); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace ppc64 { +namespace { +namespace simd { + +using __m128i = __vector unsigned char; + +template struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i &() const { + return this->value; + } + simdjson_inline operator __m128i &() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { + return vec_or(this->value, (__m128i)other); + } + simdjson_inline Child operator&(const Child other) const { + return vec_and(this->value, (__m128i)other); + } + simdjson_inline Child operator^(const Child other) const { + return vec_xor(this->value, (__m128i)other); + } + simdjson_inline Child bit_andnot(const Child other) const { + return vec_andc(this->value, (__m128i)other); + } + simdjson_inline Child &operator|=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast | other; + return *this_cast; + } + simdjson_inline Child &operator&=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast & other; + return *this_cast; + } + simdjson_inline Child &operator^=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast ^ other; + return *this_cast; + } +}; + +template > +struct base8 : base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { + return (__m128i)vec_cmpeq(lhs.value, (__m128i)rhs); + } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(simd8 prev_chunk) const { + __m128i chunk = this->value; +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve(this->value); + prev_chunk = (__m128i)vec_reve((__m128i)prev_chunk); +#endif + chunk = (__m128i)vec_sld((__m128i)prev_chunk, (__m128i)chunk, 16 - N); +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve((__m128i)chunk); +#endif + return chunk; + } +}; + +// SIMD byte mask type (returned by things like eq and gt) +template <> struct simd8 : base8 { + static simdjson_inline simd8 splat(bool _value) { + return (__m128i)vec_splats((unsigned char)(-(!!_value))); + } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) + : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) + : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { + __vector unsigned long long result; + const __m128i perm_mask = {0x78, 0x70, 0x68, 0x60, 0x58, 0x50, 0x48, 0x40, + 0x38, 0x30, 0x28, 0x20, 0x18, 0x10, 0x08, 0x00}; + + result = ((__vector unsigned long long)vec_vbpermq((__m128i)this->value, + (__m128i)perm_mask)); +#ifdef __LITTLE_ENDIAN__ + return static_cast(result[1]); +#else + return static_cast(result[0]); +#endif + } + simdjson_inline bool any() const { + return !vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline simd8 operator~() const { + return this->value ^ (__m128i)splat(true); + } +}; + +template struct base8_numeric : base8 { + static simdjson_inline simd8 splat(T value) { + (void)value; + return (__m128i)vec_splats(value); + } + static simdjson_inline simd8 zero() { return splat(0); } + static simdjson_inline simd8 load(const T values[16]) { + return (__m128i)(vec_vsx_ld(0, reinterpret_cast(values))); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16(T v0, T v1, T v2, T v3, T v4, + T v5, T v6, T v7, T v8, T v9, + T v10, T v11, T v12, T v13, + T v14, T v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, + v14, v15); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) + : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { + vec_vsx_st(this->value, 0, reinterpret_cast<__m128i *>(dst)); + } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { + return (__m128i)((__m128i)this->value + (__m128i)other); + } + simdjson_inline simd8 operator-(const simd8 other) const { + return (__m128i)((__m128i)this->value - (__m128i)other); + } + simdjson_inline simd8 &operator+=(const simd8 other) { + *this = *this + other; + return *static_cast *>(this); + } + simdjson_inline simd8 &operator-=(const simd8 other) { + *this = *this - other; + return *static_cast *>(this); + } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior + // for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return (__m128i)vec_perm((__m128i)lookup_table, (__m128i)lookup_table, this->value); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted + // as a bitset). Passing a 0 value for mask would be equivalent to writing out + // every byte to output. Only the first 16 - count_ones(mask) bytes of the + // result are significant but 16 bytes get written. Design consideration: it + // seems like a function with the signature simd8 compress(uint32_t mask) + // would be sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L *output) const { + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + using internal::thintable_epi8; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. +#ifdef __LITTLE_ENDIAN__ + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask1], thintable_epi8[mask2]}; +#else + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask2], thintable_epi8[mask1]}; + shufmask = (__m128i)vec_reve((__m128i)shufmask); +#endif + // we increment by 0x08 the second half of the mask + shufmask = ((__m128i)shufmask) + + ((__m128i)(__vector int){0, 0, 0x08080808, 0x08080808}); + + // this is the version "nearly pruned" + __m128i pruned = vec_perm(this->value, this->value, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + vec_vsx_ld(0, reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = vec_perm(pruned, (__m128i)vec_splats(0), compactmask); + vec_vsx_st(answer, 0, reinterpret_cast<__m128i *>(output)); + } + + template + simdjson_inline simd8 + lookup_16(L replace0, L replace1, L replace2, L replace3, L replace4, + L replace5, L replace6, L replace7, L replace8, L replace9, + L replace10, L replace11, L replace12, L replace13, L replace14, + L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, replace4, replace5, replace6, + replace7, replace8, replace9, replace10, replace11, replace12, + replace13, replace14, replace15)); + } +}; + +// Signed bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8(int8_t v0, int8_t v1, int8_t v2, int8_t v3, + int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) + : simd8((__m128i)(__vector signed char){v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10, v11, v12, v13, v14, + v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, + int8_t v6, int8_t v7, int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Order-sensitive comparisons + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return (__m128i)vec_cmpgt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return (__m128i)vec_cmplt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } +}; + +// Unsigned bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline + simd8(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, + uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, uint8_t v10, + uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15) + : simd8((__m128i){v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, + uint8_t v5, uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, + uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, + uint8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Saturated math + simdjson_inline simd8 + saturating_add(const simd8 other) const { + return (__m128i)vec_adds(this->value, (__m128i)other); + } + simdjson_inline simd8 + saturating_sub(const simd8 other) const { + return (__m128i)vec_subs(this->value, (__m128i)other); + } + + // Order-specific operations + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max(this->value, (__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min(this->value, (__m128i)other); + } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + gt_bits(const simd8 other) const { + return this->saturating_sub(other); + } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + lt_bits(const simd8 other) const { + return other.saturating_sub(*this); + } + simdjson_inline simd8 + operator<=(const simd8 other) const { + return other.max_val(*this) == other; + } + simdjson_inline simd8 + operator>=(const simd8 other) const { + return other.min_val(*this) == other; + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { + return (__m128i)vec_cmpeq(this->value, (__m128i)vec_splats(uint8_t(0))); + } + simdjson_inline simd8 bits_not_set(simd8 bits) const { + return (*this & bits).bits_not_set(); + } + simdjson_inline simd8 any_bits_set() const { + return ~this->bits_not_set(); + } + simdjson_inline simd8 any_bits_set(simd8 bits) const { + return ~this->bits_not_set(bits); + } + simdjson_inline bool bits_not_set_anywhere() const { + return vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere() const { + return !bits_not_set_anywhere(); + } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { + return vec_all_eq(vec_and(this->value, (__m128i)bits), + (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { + return !bits_not_set_anywhere(bits); + } + template simdjson_inline simd8 shr() const { + return simd8( + (__m128i)vec_sr(this->value, (__m128i)vec_splat_u8(N))); + } + template simdjson_inline simd8 shl() const { + return simd8( + (__m128i)vec_sl(this->value, (__m128i)vec_splat_u8(N))); + } +}; + +template struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, + "PPC64 kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64 &o) = delete; // no copy allowed + simd8x64 & + operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, + const simd8 chunk2, const simd8 chunk3) + : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) + : chunks{simd8::load(ptr), simd8::load(ptr + 16), + simd8::load(ptr + 32), simd8::load(ptr + 48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr + sizeof(simd8) * 0); + this->chunks[1].store(ptr + sizeof(simd8) * 1); + this->chunks[2].store(ptr + sizeof(simd8) * 2); + this->chunks[3].store(ptr + sizeof(simd8) * 3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | + (this->chunks[2] | this->chunks[3]); + } -} // namespace icelake -} // namespace simdjson + simdjson_inline uint64_t compress(uint64_t mask, T *output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), + output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), + output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), + output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } -/* begin file include/simdjson/icelake/end.h */ -SIMDJSON_UNTARGET_ICELAKE -/* end file include/simdjson/icelake/end.h */ -/* end file src/icelake/dom_parser_implementation.cpp */ -#endif -#if SIMDJSON_IMPLEMENTATION_HASWELL -/* begin file src/haswell/implementation.cpp */ -/* begin file include/simdjson/haswell/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "haswell" -// #define SIMDJSON_IMPLEMENTATION haswell -SIMDJSON_TARGET_HASWELL -/* end file include/simdjson/haswell/begin.h */ + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r1 = this->chunks[1].to_bitmask(); + uint64_t r2 = this->chunks[2].to_bitmask(); + uint64_t r3 = this->chunks[3].to_bitmask(); + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } -namespace simdjson { -namespace haswell { + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] == mask, this->chunks[1] == mask, + this->chunks[2] == mask, this->chunks[3] == mask) + .to_bitmask(); + } -simdjson_warn_unused error_code implementation::create_dom_parser_implementation( - size_t capacity, - size_t max_depth, - std::unique_ptr& dst -) const noexcept { - dst.reset( new (std::nothrow) dom_parser_implementation() ); - if (!dst) { return MEMALLOC; } - if (auto err = dst->set_capacity(capacity)) - return err; - if (auto err = dst->set_max_depth(max_depth)) - return err; - return SUCCESS; -} + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64(this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3]) + .to_bitmask(); + } -} // namespace haswell -} // namespace simdjson + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] <= mask, this->chunks[1] <= mask, + this->chunks[2] <= mask, this->chunks[3] <= mask) + .to_bitmask(); + } +}; // struct simd8x64 -/* begin file include/simdjson/haswell/end.h */ -SIMDJSON_UNTARGET_HASWELL -/* end file include/simdjson/haswell/end.h */ +} // namespace simd +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson -/* end file src/haswell/implementation.cpp */ -/* begin file src/haswell/dom_parser_implementation.cpp */ -/* begin file include/simdjson/haswell/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "haswell" -// #define SIMDJSON_IMPLEMENTATION haswell -SIMDJSON_TARGET_HASWELL -/* end file include/simdjson/haswell/begin.h */ +#endif // SIMDJSON_PPC64_SIMD_INPUT_H +/* end file simdjson/ppc64/simd.h */ +/* including simdjson/ppc64/stringparsing_defs.h: #include "simdjson/ppc64/stringparsing_defs.h" */ +/* begin file simdjson/ppc64/stringparsing_defs.h */ +#ifndef SIMDJSON_PPC64_STRINGPARSING_DEFS_H +#define SIMDJSON_PPC64_STRINGPARSING_DEFS_H -// -// Stage 1 -// +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/simd.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { using namespace simd; -struct json_character_block { - static simdjson_inline json_character_block classify(const simd::simd8x64& in); - // ASCII white-space ('\r','\n','\t',' ') - simdjson_inline uint64_t whitespace() const noexcept; - // non-quote structural characters (comma, colon, braces, brackets) - simdjson_inline uint64_t op() const noexcept; - // neither a structural character nor a white-space, so letters, numbers and quotes - simdjson_inline uint64_t scalar() const noexcept; - - uint64_t _whitespace; // ASCII white-space ('\r','\n','\t',' ') - uint64_t _op; // structural characters (comma, colon, braces, brackets but not quotes) -}; - -simdjson_inline uint64_t json_character_block::whitespace() const noexcept { return _whitespace; } -simdjson_inline uint64_t json_character_block::op() const noexcept { return _op; } -simdjson_inline uint64_t json_character_block::scalar() const noexcept { return ~(op() | whitespace()); } - -// This identifies structural characters (comma, colon, braces, brackets), -// and ASCII white-space ('\r','\n','\t',' '). -simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { - // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why - // we can't use the generic lookup_16. - const auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote + copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { + return ((bs_bits - 1) & quote_bits) != 0; + } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { + return trailing_zeroes(quote_bits); + } + simdjson_inline int backslash_index() { + return trailing_zeroes(bs_bits); + } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote +backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), + "backslash and quote finder must process fewer than " + "SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on + // PPC; therefore, we smash them together into a 64-byte mask and get the + // bitmask from there. + uint64_t bs_and_quote = + simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} - // The 6 operators (:,[]{}) have these values: - // - // , 2C - // : 3A - // [ 5B - // { 7B - // ] 5D - // } 7D - // - // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. - // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then - // match it (against | 0x20). - // - // To prevent recognizing other characters, everything else gets compared with 0, which cannot - // match due to the | 0x20. - // - // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , - // and :. This gets caught in stage 2, which checks the actual character to ensure the right - // operators are in the right places. - const auto op_table = simd8::repeat_16( - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B - ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D - ); +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson - // We compute whitespace and op separately. If later code only uses one or the - // other, given the fact that all functions are aggressively inlined, we can - // hope that useless computations will be omitted. This is namely case when - // minifying (we only need whitespace). +#endif // SIMDJSON_PPC64_STRINGPARSING_DEFS_H +/* end file simdjson/ppc64/stringparsing_defs.h */ - const uint64_t whitespace = in.eq({ - _mm256_shuffle_epi8(whitespace_table, in.chunks[0]), - _mm256_shuffle_epi8(whitespace_table, in.chunks[1]) - }); - // Turn [ and ] into { and } - const simd8x64 curlified{ - in.chunks[0] | 0x20, - in.chunks[1] | 0x20 - }; - const uint64_t op = curlified.eq({ - _mm256_shuffle_epi8(op_table, in.chunks[0]), - _mm256_shuffle_epi8(op_table, in.chunks[1]) - }); +#define SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT 1 +/* end file simdjson/ppc64/begin.h */ +/* including generic/amalgamated.h for ppc64: #include */ +/* begin file generic/amalgamated.h for ppc64 */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_SRC_GENERIC_DEPENDENCIES_H) +#error generic/dependencies.h must be included before generic/amalgamated.h! +#endif - return { whitespace, op }; -} +/* including generic/base.h for ppc64: #include */ +/* begin file generic/base.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_BASE_H -simdjson_inline bool is_ascii(const simd8x64& input) { - return input.reduce_or().is_ascii(); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { - simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 - simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 - simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 - // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. - return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); -} +namespace simdjson { +namespace ppc64 { +namespace { -simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { - simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 - simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 - // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. - return simd8(is_third_byte | is_fourth_byte) > int8_t(0); -} +struct json_character_block; } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +#endif // SIMDJSON_SRC_GENERIC_BASE_H +/* end file generic/base.h for ppc64 */ +/* including generic/dom_parser_implementation.h for ppc64: #include */ +/* begin file generic/dom_parser_implementation.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// Interface a dom parser implementation must fulfill namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { -namespace utf8_validation { - -using namespace simd; - simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { -// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) -// Bit 1 = Too Long (ASCII followed by continuation) -// Bit 2 = Overlong 3-byte -// Bit 4 = Surrogate -// Bit 5 = Overlong 2-byte -// Bit 7 = Two Continuations - constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ - // 11______ 11______ - constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ - constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ - constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ - constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ - constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ - constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ - // 11110100 101_____ - // 11110101 1001____ - // 11110101 101_____ - // 1111011_ 1001____ - // 1111011_ 101_____ - // 11111___ 1001____ - // 11111___ 101_____ - constexpr const uint8_t TOO_LARGE_1000 = 1<<6; - // 11110101 1000____ - // 1111011_ 1000____ - // 11111___ 1000____ - constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3); +simdjson_inline bool is_ascii(const simd8x64& input); - const simd8 byte_1_high = prev1.shr<4>().lookup_16( - // 0_______ ________ - TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, - TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, - // 10______ ________ - TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, - // 1100____ ________ - TOO_SHORT | OVERLONG_2, - // 1101____ ________ - TOO_SHORT, - // 1110____ ________ - TOO_SHORT | OVERLONG_3 | SURROGATE, - // 1111____ ________ - TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 - ); - constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . - const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( - // ____0000 ________ - CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, - // ____0001 ________ - CARRY | OVERLONG_2, - // ____001_ ________ - CARRY, - CARRY, +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson - // ____0100 ________ - CARRY | TOO_LARGE, - // ____0101 ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - // ____011_ ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, +#endif // SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file generic/dom_parser_implementation.h for ppc64 */ +/* including generic/json_character_block.h for ppc64: #include */ +/* begin file generic/json_character_block.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H - // ____1___ ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - // ____1101 ________ - CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000 - ); - const simd8 byte_2_high = input.shr<4>().lookup_16( - // ________ 0_______ - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // ________ 1000____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, - // ________ 1001____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, - // ________ 101_____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, - TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, +namespace simdjson { +namespace ppc64 { +namespace { - // ________ 11______ - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT - ); - return (byte_1_high & byte_1_low & byte_2_high); - } - simdjson_inline simd8 check_multibyte_lengths(const simd8 input, - const simd8 prev_input, const simd8 sc) { - simd8 prev2 = input.prev<2>(prev_input); - simd8 prev3 = input.prev<3>(prev_input); - simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); - simd8 must23_80 = must23 & uint8_t(0x80); - return must23_80 ^ sc; - } +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); - // - // Return nonzero if there are incomplete multibyte characters at the end of the block: - // e.g. if there is a 4-byte character, but it's 3 bytes from the end. - // - simdjson_inline simd8 is_incomplete(const simd8 input) { - // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): - // ... 1111____ 111_____ 11______ -#if SIMDJSON_IMPLEMENTATION_ICELAKE - static const uint8_t max_array[64] = { - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 - }; -#else - static const uint8_t max_array[32] = { - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 - }; -#endif - const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); - return input.gt_bits(max_value); - } + simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } + simdjson_inline uint64_t op() const noexcept { return _op; } + simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } - struct utf8_checker { - // If this is nonzero, there has been a UTF-8 error. - simd8 error; - // The last input we received - simd8 prev_input_block; - // Whether the last input we received was incomplete (used for ASCII fast path) - simd8 prev_incomplete; + uint64_t _whitespace; + uint64_t _op; +}; - // - // Check whether the current bytes are valid UTF-8. - // - simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { - // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes - // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) - simd8 prev1 = input.prev<1>(prev_input); - simd8 sc = check_special_cases(input, prev1); - this->error |= check_multibyte_lengths(input, prev_input, sc); - } +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson - // The only problem that can happen at EOF is that a multibyte character is too short - // or a byte value too large in the last bytes: check_special_cases only checks for bytes - // too large in the first of two bytes. - simdjson_inline void check_eof() { - // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't - // possibly finish them. - this->error |= this->prev_incomplete; - } +#endif // SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H +/* end file generic/json_character_block.h for ppc64 */ +/* end file generic/amalgamated.h for ppc64 */ +/* including generic/stage1/amalgamated.h for ppc64: #include */ +/* begin file generic/stage1/amalgamated.h for ppc64 */ +// Stuff other things depend on +/* including generic/stage1/base.h for ppc64: #include */ +/* begin file generic/stage1/base.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -#ifndef SIMDJSON_IF_CONSTEXPR -#if SIMDJSON_CPLUSPLUS17 -#define SIMDJSON_IF_CONSTEXPR if constexpr -#else -#define SIMDJSON_IF_CONSTEXPR if -#endif -#endif +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage1 { - simdjson_inline void check_next_input(const simd8x64& input) { - if(simdjson_likely(is_ascii(input))) { - this->error |= this->prev_incomplete; - } else { - // you might think that a for-loop would work, but under Visual Studio, it is not good enough. - static_assert((simd8x64::NUM_CHUNKS == 1) - ||(simd8x64::NUM_CHUNKS == 2) - || (simd8x64::NUM_CHUNKS == 4), - "We support one, two or four chunks per 64-byte block."); - SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - this->check_utf8_bytes(input.chunks[2], input.chunks[1]); - this->check_utf8_bytes(input.chunks[3], input.chunks[2]); - } - this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); - this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; - } - } - // do not forget to call check_eof! - simdjson_inline error_code errors() { - return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; - } +class bit_indexer; +template +struct buf_block_reader; +struct json_block; +class json_minifier; +class json_scanner; +struct json_string_block; +class json_string_scanner; +class json_structural_indexer; - }; // struct utf8_checker +} // namespace stage1 + +namespace utf8_validation { +struct utf8_checker; } // namespace utf8_validation using utf8_validation::utf8_checker; } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ -/* begin file src/generic/stage1/json_structural_indexer.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) -/* begin file src/generic/stage1/buf_block_reader.h */ +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BASE_H +/* end file generic/stage1/base.h for ppc64 */ +/* including generic/stage1/buf_block_reader.h for ppc64: #include */ +/* begin file generic/stage1/buf_block_reader.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { +namespace stage1 { // Walks through a buffer in block-sized increments, loading the last part with spaces template @@ -9694,6 +33809,17 @@ simdjson_unused static char * format_input_text(const simd8x64& in) { return buf; } +simdjson_unused static char * format_input_text(const simd8x64& in, uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] <= ' ') { buf[i] = '_'; } + if (!(mask & (size_t(1) << i))) { buf[i] = ' '; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; +} + simdjson_unused static char * format_mask(uint64_t mask) { static char buf[sizeof(simd8x64) + 1]; for (size_t i=0; i<64; i++) { @@ -9732,45 +33858,203 @@ simdjson_inline void buf_block_reader::advance() { idx += STEP_SIZE; } +} // namespace stage1 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/buf_block_reader.h */ -/* begin file src/generic/stage1/json_string_scanner.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H +/* end file generic/stage1/buf_block_reader.h for ppc64 */ +/* including generic/stage1/json_escape_scanner.h for ppc64: #include */ +/* begin file generic/stage1/json_escape_scanner.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace haswell { +namespace ppc64 { +namespace { +namespace stage1 { + +/** + * Scans for escape characters in JSON, taking care with multiple backslashes (\\n vs. \n). + */ +struct json_escape_scanner { + /** The actual escape characters (the backslashes themselves). */ + uint64_t next_is_escaped = 0ULL; + + struct escaped_and_escape { + /** + * Mask of escaped characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 0100100010100101000 + * n \ \ n \ \ + * ``` + */ + uint64_t escaped; + /** + * Mask of escape characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 1001000101001010001 + * \ \ \ \ \ \ \ + * ``` + */ + uint64_t escape; + }; + + /** + * Get a mask of both escape and escaped characters (the characters following a backslash). + * + * @param potential_escape A mask of the character that can escape others (but could be + * escaped itself). e.g. block.eq('\\') + */ + simdjson_really_inline escaped_and_escape next(uint64_t backslash) noexcept { + +#if !SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT + if (!backslash) { return {next_escaped_without_backslashes(), 0}; } +#endif + + // | | Mask (shows characters instead of 1's) | Depth | Instructions | + // |--------------------------------|----------------------------------------|-------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | | | + // | | ` even odd even odd odd` | | | + // | potential_escape | ` \ \\\ \\\ \\\\ \\\\ \\\` | 1 | 1 (backslash & ~first_is_escaped) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 5 | 5 (next_escape_and_terminal_code()) + // | escaped | `\ \ n \ n \ \ \ \ \ ` X | 6 | 7 (escape_and_terminal_code ^ (potential_escape | first_is_escaped)) + // | escape | ` \ \ \ \ \ \ \ \ \ \` | 6 | 8 (escape_and_terminal_code & backslash) + // | first_is_escaped | `\ ` | 7 (*) | 9 (escape >> 63) () + // (*) this is not needed until the next iteration + uint64_t escape_and_terminal_code = next_escape_and_terminal_code(backslash & ~this->next_is_escaped); + uint64_t escaped = escape_and_terminal_code ^ (backslash | this->next_is_escaped); + uint64_t escape = escape_and_terminal_code & backslash; + this->next_is_escaped = escape >> 63; + return {escaped, escape}; + } + +private: + static constexpr const uint64_t ODD_BITS = 0xAAAAAAAAAAAAAAAAULL; + + simdjson_really_inline uint64_t next_escaped_without_backslashes() noexcept { + uint64_t escaped = this->next_is_escaped; + this->next_is_escaped = 0; + return escaped; + } + + /** + * Returns a mask of the next escape characters (masking out escaped backslashes), along with + * any non-backslash escape codes. + * + * \n \\n \\\n \\\\n returns: + * \n \ \ \n \ \ + * 11 100 1011 10100 + * + * You are expected to mask out the first bit yourself if the previous block had a trailing + * escape. + * + * & the result with potential_escape to get just the escape characters. + * ^ the result with (potential_escape | first_is_escaped) to get escaped characters. + */ + static simdjson_really_inline uint64_t next_escape_and_terminal_code(uint64_t potential_escape) noexcept { + // If we were to just shift and mask out any odd bits, we'd actually get a *half* right answer: + // any even-aligned backslash runs would be correct! Odd-aligned backslash runs would be + // inverted (\\\ would be 010 instead of 101). + // + // ``` + // string: | ____\\\\_\\\\_____ | + // maybe_escaped | ODD | \ \ \ \ | + // even-aligned ^^^ ^^^^ odd-aligned + // ``` + // + // Taking that into account, our basic strategy is: + // + // 1. Use subtraction to produce a mask with 1's for even-aligned runs and 0's for + // odd-aligned runs. + // 2. XOR all odd bits, which masks out the odd bits in even-aligned runs, and brings IN the + // odd bits in odd-aligned runs. + // 3. & with backslash to clean up any stray bits. + // runs are set to 0, and then XORing with "odd": + // + // | | Mask (shows characters instead of 1's) | Instructions | + // |--------------------------------|----------------------------------------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | + // | | ` even odd even odd odd` | + // | maybe_escaped | ` n \\n \\n \\\_ \\\_ \\` X | 1 (potential_escape << 1) + // | maybe_escaped_and_odd | ` \n_ \\n _ \\\n_ _ \\\__ _\\\_ \\\` | 1 (maybe_escaped | odd) + // | even_series_codes_and_odd | ` n_\\\ _ n_ _\\\\ _ _ ` | 1 (maybe_escaped_and_odd - potential_escape) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 1 (^ odd) + // + + // Escaped characters are characters following an escape. + uint64_t maybe_escaped = potential_escape << 1; + + // To distinguish odd from even escape sequences, therefore, we turn on any *starting* + // escapes that are on an odd byte. (We actually bring in all odd bits, for speed.) + // - Odd runs of backslashes are 0000, and the code at the end ("n" in \n or \\n) is 1. + // - Odd runs of backslashes are 1111, and the code at the end ("n" in \n or \\n) is 0. + // - All other odd bytes are 1, and even bytes are 0. + uint64_t maybe_escaped_and_odd_bits = maybe_escaped | ODD_BITS; + uint64_t even_series_codes_and_odd_bits = maybe_escaped_and_odd_bits - potential_escape; + + // Now we flip all odd bytes back with xor. This: + // - Makes odd runs of backslashes go from 0000 to 1010 + // - Makes even runs of backslashes go from 1111 to 1010 + // - Sets actually-escaped codes to 1 (the n in \n and \\n: \n = 11, \\n = 100) + // - Resets all other bytes to 0 + return even_series_codes_and_odd_bits ^ ODD_BITS; + } +}; + +} // namespace stage1 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_escape_scanner.h for ppc64 */ +/* including generic/stage1/json_string_scanner.h for ppc64: #include */ +/* begin file generic/stage1/json_string_scanner.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { namespace { namespace stage1 { struct json_string_block { // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 - simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : - _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} + simdjson_really_inline json_string_block(uint64_t escaped, uint64_t quote, uint64_t in_string) : + _escaped(escaped), _quote(quote), _in_string(in_string) {} // Escaped characters (characters following an escape() character) - simdjson_inline uint64_t escaped() const { return _escaped; } - // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) - simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } + simdjson_really_inline uint64_t escaped() const { return _escaped; } // Real (non-backslashed) quotes - simdjson_inline uint64_t quote() const { return _quote; } - // Start quotes of strings - simdjson_inline uint64_t string_start() const { return _quote & _in_string; } - // End quotes of strings - simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } + simdjson_really_inline uint64_t quote() const { return _quote; } // Only characters inside the string (not including the quotes) - simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } + simdjson_really_inline uint64_t string_content() const { return _in_string & ~_quote; } // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + simdjson_really_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + simdjson_really_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } // Tail of string (everything except the start quote) - simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } + simdjson_really_inline uint64_t string_tail() const { return _in_string ^ _quote; } - // backslash characters - uint64_t _backslash; // escaped characters (backslashed--does not include the hex characters after \u) uint64_t _escaped; - // real quotes (non-backslashed ones) + // real quotes (non-escaped ones) uint64_t _quote; // string characters (includes start quote but not end quote) uint64_t _in_string; @@ -9779,121 +34063,297 @@ struct json_string_block { // Scans blocks for string characters, storing the state necessary to do so class json_string_scanner { public: - simdjson_inline json_string_block next(const simd::simd8x64& in); + simdjson_really_inline json_string_block next(const simd::simd8x64& in); // Returns either UNCLOSED_STRING or SUCCESS - simdjson_inline error_code finish(); + simdjson_really_inline error_code finish(); private: - // Intended to be defined by the implementation - simdjson_inline uint64_t find_escaped(uint64_t escape); - simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); - + // Scans for escape characters + json_escape_scanner escape_scanner{}; // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). uint64_t prev_in_string = 0ULL; - // Whether the first character of the next iteration is escaped. - uint64_t prev_escaped = 0ULL; }; -// -// Finds escaped characters (characters following \). -// -// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). -// -// Does this by: -// - Shift the escape mask to get potentially escaped characters (characters after backslashes). -// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) -// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) -// -// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all -// escape sequences, filters out the ones that start on even bits, and adds that to the mask of -// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since -// the start bit causes a carry), and leaves even-bit sequences alone. -// -// Example: -// -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape -// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape -// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later -// invert_mask | | cxxx c xx c| even_seq << 1 -// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit -// escaped | x | x x x x x x x x | -// desired | x | x x x x x x x x | -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// -simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { - // If there was overflow, pretend the first character isn't a backslash - backslash &= ~prev_escaped; - uint64_t follows_escape = backslash << 1 | prev_escaped; +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_really_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = escape_scanner.next(backslash).escaped; + const uint64_t quote = in.eq('"') & ~escaped; + + // + // prefix_xor flips on bits inside the string (and flips off the end quote). + // + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + + // + // Check if we're still in a string at the end of the box so the next block will know + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); + + // Use ^ to turn the beginning quote off, and the end quote on. + + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block(escaped, quote, in_string); +} + +simdjson_really_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; +} + +} // namespace stage1 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_string_scanner.h for ppc64 */ +/* including generic/stage1/utf8_lookup4_algorithm.h for ppc64: #include */ +/* begin file generic/stage1/utf8_lookup4_algorithm.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { +namespace utf8_validation { + +using namespace simd; + + simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { +// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) +// Bit 1 = Too Long (ASCII followed by continuation) +// Bit 2 = Overlong 3-byte +// Bit 4 = Surrogate +// Bit 5 = Overlong 2-byte +// Bit 7 = Two Continuations + constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ + // 11______ 11______ + constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ + constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ + constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ + constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ + constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ + constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ + // 11110100 101_____ + // 11110101 1001____ + // 11110101 101_____ + // 1111011_ 1001____ + // 1111011_ 101_____ + // 11111___ 1001____ + // 11111___ 101_____ + constexpr const uint8_t TOO_LARGE_1000 = 1<<6; + // 11110101 1000____ + // 1111011_ 1000____ + // 11111___ 1000____ + constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ + + const simd8 byte_1_high = prev1.shr<4>().lookup_16( + // 0_______ ________ + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, + // 10______ ________ + TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, + // 1100____ ________ + TOO_SHORT | OVERLONG_2, + // 1101____ ________ + TOO_SHORT, + // 1110____ ________ + TOO_SHORT | OVERLONG_3 | SURROGATE, + // 1111____ ________ + TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 + ); + constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . + const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( + // ____0000 ________ + CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, + // ____0001 ________ + CARRY | OVERLONG_2, + // ____001_ ________ + CARRY, + CARRY, + + // ____0100 ________ + CARRY | TOO_LARGE, + // ____0101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____011_ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, - // Get sequences starting on even bits by clearing out the odd series using + - const uint64_t even_bits = 0x5555555555555555ULL; - uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; - uint64_t sequences_starting_on_even_bits; - prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); - uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. + // ____1___ ________ + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000, + // ____1101 ________ + CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, + CARRY | TOO_LARGE | TOO_LARGE_1000, + CARRY | TOO_LARGE | TOO_LARGE_1000 + ); + const simd8 byte_2_high = input.shr<4>().lookup_16( + // ________ 0_______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, - // Mask every other backslashed character as an escaped character - // Flip the mask for sequences that start on even bits, to correct them - return (even_bits ^ invert_mask) & follows_escape; -} + // ________ 1000____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, + // ________ 1001____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, + // ________ 101_____ + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, + TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, -// -// Return a mask of all string characters plus end quotes. -// -// prev_escaped is overflow saying whether the next character is escaped. -// prev_in_string is overflow saying whether we're still in a string. -// -// Backslash sequences outside of quotes will be detected in stage 2. -// -simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { - const uint64_t backslash = in.eq('\\'); - const uint64_t escaped = find_escaped(backslash); - const uint64_t quote = in.eq('"') & ~escaped; + // ________ 11______ + TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT + ); + return (byte_1_high & byte_1_low & byte_2_high); + } + simdjson_inline simd8 check_multibyte_lengths(const simd8 input, + const simd8 prev_input, const simd8 sc) { + simd8 prev2 = input.prev<2>(prev_input); + simd8 prev3 = input.prev<3>(prev_input); + simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); + simd8 must23_80 = must23 & uint8_t(0x80); + return must23_80 ^ sc; + } // - // prefix_xor flips on bits inside the string (and flips off the end quote). - // - // Then we xor with prev_in_string: if we were in a string already, its effect is flipped - // (characters inside strings are outside, and characters outside strings are inside). + // Return nonzero if there are incomplete multibyte characters at the end of the block: + // e.g. if there is a 4-byte character, but it's 3 bytes from the end. // - const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; + simdjson_inline simd8 is_incomplete(const simd8 input) { + // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): + // ... 1111____ 111_____ 11______ +#if SIMDJSON_IMPLEMENTATION_ICELAKE + static const uint8_t max_array[64] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#else + static const uint8_t max_array[32] = { + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 255, 255, 255, + 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 + }; +#endif + const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); + return input.gt_bits(max_value); + } - // - // Check if we're still in a string at the end of the box so the next block will know - // - // right shift of a signed value expected to be well-defined and standard - // compliant as of C++20, John Regher from Utah U. says this is fine code - // - prev_in_string = uint64_t(static_cast(in_string) >> 63); + struct utf8_checker { + // If this is nonzero, there has been a UTF-8 error. + simd8 error; + // The last input we received + simd8 prev_input_block; + // Whether the last input we received was incomplete (used for ASCII fast path) + simd8 prev_incomplete; - // Use ^ to turn the beginning quote off, and the end quote on. + // + // Check whether the current bytes are valid UTF-8. + // + simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { + // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes + // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) + simd8 prev1 = input.prev<1>(prev_input); + simd8 sc = check_special_cases(input, prev1); + this->error |= check_multibyte_lengths(input, prev_input, sc); + } - // We are returning a function-local object so either we get a move constructor - // or we get copy elision. - return json_string_block( - backslash, - escaped, - quote, - in_string - ); -} + // The only problem that can happen at EOF is that a multibyte character is too short + // or a byte value too large in the last bytes: check_special_cases only checks for bytes + // too large in the first of two bytes. + simdjson_inline void check_eof() { + // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't + // possibly finish them. + this->error |= this->prev_incomplete; + } -simdjson_inline error_code json_string_scanner::finish() { - if (prev_in_string) { - return UNCLOSED_STRING; - } - return SUCCESS; -} +#ifndef SIMDJSON_IF_CONSTEXPR +#if SIMDJSON_CPLUSPLUS17 +#define SIMDJSON_IF_CONSTEXPR if constexpr +#else +#define SIMDJSON_IF_CONSTEXPR if +#endif +#endif + + simdjson_inline void check_next_input(const simd8x64& input) { + if(simdjson_likely(is_ascii(input))) { + this->error |= this->prev_incomplete; + } else { + // you might think that a for-loop would work, but under Visual Studio, it is not good enough. + static_assert((simd8x64::NUM_CHUNKS == 1) + ||(simd8x64::NUM_CHUNKS == 2) + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } + + }; // struct utf8_checker +} // namespace utf8_validation -} // namespace stage1 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/json_string_scanner.h */ -/* begin file src/generic/stage1/json_scanner.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H +/* end file generic/stage1/utf8_lookup4_algorithm.h for ppc64 */ +/* including generic/stage1/json_scanner.h for ppc64: #include */ +/* begin file generic/stage1/json_scanner.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { namespace stage1 { @@ -10034,121 +34494,40 @@ simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); // We are returning a function-local object so either we get a move constructor // or we get copy elision. - return json_block( - strings,// strings is a function-local object so either it moves or the copy is elided. - characters, - follows_nonquote_scalar - ); -} - -simdjson_inline error_code json_scanner::finish() { - return string_scanner.finish(); -} - -} // namespace stage1 -} // unnamed namespace -} // namespace haswell -} // namespace simdjson -/* end file src/generic/stage1/json_scanner.h */ -/* begin file src/generic/stage1/json_minifier.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) - -namespace simdjson { -namespace haswell { -namespace { -namespace stage1 { - -class json_minifier { -public: - template - static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; - -private: - simdjson_inline json_minifier(uint8_t *_dst) - : dst{_dst} - {} - template - simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; - simdjson_inline void next(const simd::simd8x64& in, const json_block& block); - simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); - json_scanner scanner{}; - uint8_t *dst; -}; - -simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { - uint64_t mask = block.whitespace(); - dst += in.compress(mask, dst); -} - -simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { - error_code error = scanner.finish(); - if (error) { dst_len = 0; return error; } - dst_len = dst - dst_start; - return SUCCESS; -} - -template<> -simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - simd::simd8x64 in_2(block_buf+64); - json_block block_1 = scanner.next(in_1); - json_block block_2 = scanner.next(in_2); - this->next(in_1, block_1); - this->next(in_2, block_2); - reader.advance(); -} - -template<> -simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - json_block block_1 = scanner.next(in_1); - this->next(block_buf, block_1); - reader.advance(); + return json_block( + strings,// strings is a function-local object so either it moves or the copy is elided. + characters, + follows_nonquote_scalar + ); } -template -error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { - buf_block_reader reader(buf, len); - json_minifier minifier(dst); - - // Index the first n-1 blocks - while (reader.has_full_block()) { - minifier.step(reader.full_block(), reader); - } - - // Index the last (remainder) block, padded with spaces - uint8_t block[STEP_SIZE]; - size_t remaining_bytes = reader.get_remainder(block); - if (remaining_bytes > 0) { - // We do not want to write directly to the output stream. Rather, we write - // to a local buffer (for safety). - uint8_t out_block[STEP_SIZE]; - uint8_t * const guarded_dst{minifier.dst}; - minifier.dst = out_block; - minifier.step(block, reader); - size_t to_write = minifier.dst - out_block; - // In some cases, we could be enticed to consider the padded spaces - // as part of the string. This is fine as long as we do not write more - // than we consumed. - if(to_write > remaining_bytes) { to_write = remaining_bytes; } - memcpy(guarded_dst, out_block, to_write); - minifier.dst = guarded_dst + to_write; - } - return minifier.finish(dst, dst_len); +simdjson_inline error_code json_scanner::finish() { + return string_scanner.finish(); } } // namespace stage1 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/json_minifier.h */ -/* begin file src/generic/stage1/find_next_document_index.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H +/* end file generic/stage1/json_scanner.h for ppc64 */ + +// All other declarations +/* including generic/stage1/find_next_document_index.h for ppc64: #include */ +/* begin file generic/stage1/find_next_document_index.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { +namespace stage1 { /** * This algorithm is used to quickly identify the last structural position that @@ -10236,13 +34615,142 @@ simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &par return 0; } +} // namespace stage1 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/find_next_document_index.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H +/* end file generic/stage1/find_next_document_index.h for ppc64 */ +/* including generic/stage1/json_minifier.h for ppc64: #include */ +/* begin file generic/stage1/json_minifier.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) namespace simdjson { -namespace haswell { +namespace ppc64 { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H +/* end file generic/stage1/json_minifier.h for ppc64 */ +/* including generic/stage1/json_structural_indexer.h for ppc64: #include */ +/* begin file generic/stage1/json_structural_indexer.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace ppc64 { namespace { namespace stage1 { @@ -10258,9 +34766,9 @@ class bit_indexer { // will potentially store extra values beyond end of valid bits, so base_ptr // needs to be large enough to handle this // - // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own - // version of the code. -#ifdef SIMDJSON_CUSTOM_BIT_INDEXER + // If the kernel sets SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER, then it + // will provide its own version of the code. +#ifdef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER simdjson_inline void write(uint32_t idx, uint64_t bits); #else simdjson_inline void write(uint32_t idx, uint64_t bits) { @@ -10355,7 +34863,7 @@ class bit_indexer { this->tail += cnt; #endif } -#endif // SIMDJSON_CUSTOM_BIT_INDEXER +#endif // SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER }; @@ -10584,12 +35092,27 @@ simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementa } // namespace stage1 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/json_structural_indexer.h */ -/* begin file src/generic/stage1/utf8_validator.h */ + +// Clear CUSTOM_BIT_INDEXER so other implementations can set it if they need to. +#undef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H +/* end file generic/stage1/json_structural_indexer.h for ppc64 */ +/* including generic/stage1/utf8_validator.h for ppc64: #include */ +/* begin file generic/stage1/utf8_validator.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { namespace stage1 { @@ -10620,260 +35143,177 @@ bool generic_validate_utf8(const char * input, size_t length) { } // namespace stage1 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage1/utf8_validator.h */ -// -// Stage 2 -// -/* begin file src/generic/stage2/stringparsing.h */ -// This file contains the common code every implementation uses -// It is intended to be included multiple times and compiled multiple times +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H +/* end file generic/stage1/utf8_validator.h for ppc64 */ +/* end file generic/stage1/amalgamated.h for ppc64 */ +/* including generic/stage2/amalgamated.h for ppc64: #include */ +/* begin file generic/stage2/amalgamated.h for ppc64 */ +// Stuff other things depend on +/* including generic/stage2/base.h for ppc64: #include */ +/* begin file generic/stage2/base.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { -/// @private -namespace stringparsing { +namespace stage2 { -// begin copypasta -// These chars yield themselves: " \ / -// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab -// u not handled in this table as it's complex -static const uint8_t escape_map[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +class json_iterator; +class structural_iterator; +struct tape_builder; +struct tape_writer; - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. - 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. - 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. +} // namespace stage2 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +#endif // SIMDJSON_SRC_GENERIC_STAGE2_BASE_H +/* end file generic/stage2/base.h for ppc64 */ +/* including generic/stage2/tape_writer.h for ppc64: #include */ +/* begin file generic/stage2/tape_writer.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -}; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -// handle a unicode codepoint -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, - uint8_t **dst_ptr, bool allow_replacement) { - // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) - constexpr uint32_t substitution_code_point = 0xfffd; - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; +#include + +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage2 { + +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; + + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; + + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; + + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; + + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; - // We have already checked that the high surrogate is valid and - // (code_point - 0xd800) < 1024. - // - // Check that code_point_2 is in the range 0xdc00..0xdfff - // and that code_point_2 was parsed from valid hex. - uint32_t low_bit = code_point_2 - 0xdc00; - if (low_bit >> 10) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct tape_writer - } - } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { - // If we encounter a low surrogate (not preceded by a high surrogate) - // then we have an error. - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); } +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; +} -// handle a unicode codepoint using the wobbly convention -// https://simonsapin.github.io/wtf-8/ -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, - uint8_t **dst_ptr) { - // It is not ideal that this function is nearly identical to handle_unicode_codepoint. - // - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - uint32_t low_bit = code_point_2 - 0xdc00; - if ((low_bit >> 10) == 0) { - code_point = - (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } - } - } +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; } +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} -/** - * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There - * must be an unescaped quote terminating the string. It returns the final output - * position as pointer. In case of error (e.g., the string has bad escaped codes), - * then null_nullptrptr is returned. It is assumed that the output buffer is large - * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + - * SIMDJSON_PADDING bytes. - */ -simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; } -simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { - // It is not ideal that this function is nearly identical to parse_string. - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint_wobbly(&src, &dst)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; } -} // namespace stringparsing +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage2/stringparsing.h */ -/* begin file src/generic/stage2/tape_builder.h */ -/* begin file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/logger.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H +/* end file generic/stage2/tape_writer.h for ppc64 */ +/* including generic/stage2/logger.h for ppc64: #include */ +/* begin file generic/stage2/logger.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + + // This is for an internal-only stage 2 specific logger. // Set LOG_ENABLED = true to log what stage 2 is doing! namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { namespace logger { @@ -10956,12 +35396,26 @@ namespace logger { } // namespace logger } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage2/logger.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H +/* end file generic/stage2/logger.h for ppc64 */ + +// All other declarations +/* including generic/stage2/json_iterator.h for ppc64: #include */ +/* begin file generic/stage2/json_iterator.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { namespace stage2 { @@ -11271,121 +35725,350 @@ simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V } } -} // namespace stage2 -} // unnamed namespace -} // namespace haswell -} // namespace simdjson -/* end file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/tape_writer.h */ -namespace simdjson { -namespace haswell { -namespace { -namespace stage2 { +} // namespace stage2 +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H +/* end file generic/stage2/json_iterator.h for ppc64 */ +/* including generic/stage2/stringparsing.h for ppc64: #include */ +/* begin file generic/stage2/stringparsing.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace ppc64 { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. -struct tape_writer { - /** The next place to write to tape */ - uint64_t *next_tape_loc; + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - /** Write a signed 64-bit value to tape. */ - simdjson_inline void append_s64(int64_t value) noexcept; + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; - /** Write an unsigned 64-bit value to tape. */ - simdjson_inline void append_u64(uint64_t value) noexcept; +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; - /** Write a double value to tape. */ - simdjson_inline void append_double(double value) noexcept; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - /** - * Append a tape entry (an 8-bit type,and 56 bits worth of value). - */ - simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } - /** - * Skip the current tape entry without writing. - * - * Used to skip the start of the container, since we'll come back later to fill it in when the - * container ends. - */ - simdjson_inline void skip() noexcept; + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} - /** - * Skip the number of tape entries necessary to write a large u64 or i64. - */ - simdjson_inline void skip_large_integer() noexcept; - /** - * Skip the number of tape entries necessary to write a double. - */ - simdjson_inline void skip_double() noexcept; +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } - /** - * Write a value to a known location on tape. - * - * Used to go back and write out the start of a container after the container ends. - */ - simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} -private: - /** - * Append both the tape entry, and a supplementary value following it. Used for types that need - * all 64 bits, such as double and uint64_t. - */ - template - simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; -}; // struct number_writer -simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { - append2(0, value, internal::tape_type::INT64); +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; } -simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { - append(0, internal::tape_type::UINT64); - *next_tape_loc = value; - next_tape_loc++; +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; } -/** Write a double value to tape. */ -simdjson_inline void tape_writer::append_double(double value) noexcept { - append2(0, value, internal::tape_type::DOUBLE); -} +} // namespace stringparsing +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson -simdjson_inline void tape_writer::skip() noexcept { - next_tape_loc++; -} +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H +/* end file generic/stage2/stringparsing.h for ppc64 */ +/* including generic/stage2/structural_iterator.h for ppc64: #include */ +/* begin file generic/stage2/structural_iterator.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H -simdjson_inline void tape_writer::skip_large_integer() noexcept { - next_tape_loc += 2; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_inline void tape_writer::skip_double() noexcept { - next_tape_loc += 2; -} +namespace simdjson { +namespace ppc64 { +namespace { +namespace stage2 { -simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { - *next_tape_loc = val | ((uint64_t(char(t))) << 56); - next_tape_loc++; -} +class structural_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; -template -simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { - append(val, t); - static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); - memcpy(next_tape_loc, &val2, sizeof(val2)); - next_tape_loc++; -} + // Start a structural + simdjson_inline structural_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { + } + // Get the buffer position of the current structural character + simdjson_inline const uint8_t* current() { + return &buf[*(next_structural-1)]; + } + // Get the current structural character + simdjson_inline char current_char() { + return buf[*(next_structural-1)]; + } + // Get the next structural character without advancing + simdjson_inline char peek_next_char() { + return buf[*next_structural]; + } + simdjson_inline const uint8_t* peek() { + return &buf[*next_structural]; + } + simdjson_inline const uint8_t* advance() { + return &buf[*(next_structural++)]; + } + simdjson_inline char advance_char() { + return buf[*(next_structural++)]; + } + simdjson_inline size_t remaining_len() { + return dom_parser.len - *(next_structural-1); + } -simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { - tape_loc = val | ((uint64_t(char(t))) << 56); -} + simdjson_inline bool at_end() { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; + } + simdjson_inline bool at_beginning() { + return next_structural == dom_parser.structural_indexes.get(); + } +}; } // namespace stage2 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage2/tape_writer.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H +/* end file generic/stage2/structural_iterator.h for ppc64 */ +/* including generic/stage2/tape_builder.h for ppc64: #include */ +/* begin file generic/stage2/tape_builder.h for ppc64 */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace haswell { +namespace ppc64 { namespace { namespace stage2 { @@ -11464,7 +36147,7 @@ struct tape_builder { simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; simdjson_inline void on_end_string(uint8_t *dst) noexcept; -}; // class tape_builder +}; // struct tape_builder template simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( @@ -11662,77 +36345,16 @@ simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { } // namespace stage2 } // unnamed namespace -} // namespace haswell +} // namespace ppc64 } // namespace simdjson -/* end file src/generic/stage2/tape_builder.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H +/* end file generic/stage2/tape_builder.h for ppc64 */ +/* end file generic/stage2/amalgamated.h for ppc64 */ // -// Implementation-specific overrides +// Stage 1 // -namespace simdjson { -namespace haswell { -namespace { -namespace stage1 { - -simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { - if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } - return find_escaped_branchless(backslash); -} - -} // namespace stage1 -} // unnamed namespace - -simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { - return haswell::stage1::json_minifier::minify<128>(buf, len, dst, dst_len); -} - -simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { - this->buf = _buf; - this->len = _len; - return haswell::stage1::json_structural_indexer::index<128>(_buf, _len, *this, streaming); -} - -simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { - return haswell::stage1::generic_validate_utf8(buf,len); -} - -simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} - -simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} - -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { - return haswell::stringparsing::parse_string(src, dst, replacement_char); -} - -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { - return haswell::stringparsing::parse_wobbly_string(src, dst); -} - -simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { - auto error = stage1(_buf, _len, stage1_mode::regular); - if (error) { return error; } - return stage2(_doc); -} - -} // namespace haswell -} // namespace simdjson - -/* begin file include/simdjson/haswell/end.h */ -SIMDJSON_UNTARGET_HASWELL -/* end file include/simdjson/haswell/end.h */ -/* end file src/haswell/dom_parser_implementation.cpp */ -#endif -#if SIMDJSON_IMPLEMENTATION_PPC64 -/* begin file src/ppc64/implementation.cpp */ -/* begin file include/simdjson/ppc64/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "ppc64" -// #define SIMDJSON_IMPLEMENTATION ppc64 -/* end file include/simdjson/ppc64/begin.h */ - namespace simdjson { namespace ppc64 { @@ -11750,38 +36372,10 @@ simdjson_warn_unused error_code implementation::create_dom_parser_implementation return SUCCESS; } -} // namespace ppc64 -} // namespace simdjson - -/* begin file include/simdjson/ppc64/end.h */ -/* end file include/simdjson/ppc64/end.h */ -/* end file src/ppc64/implementation.cpp */ -/* begin file src/ppc64/dom_parser_implementation.cpp */ -/* begin file include/simdjson/ppc64/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "ppc64" -// #define SIMDJSON_IMPLEMENTATION ppc64 -/* end file include/simdjson/ppc64/begin.h */ - -// -// Stage 1 -// -namespace simdjson { -namespace ppc64 { namespace { using namespace simd; -struct json_character_block { - static simdjson_inline json_character_block classify(const simd::simd8x64& in); - - simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } - simdjson_inline uint64_t op() const noexcept { return _op; } - simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } - - uint64_t _whitespace; - uint64_t _op; -}; - simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { const simd8 table1(16, 0, 0, 0, 0, 0, 0, 0, 0, 8, 12, 1, 2, 9, 0, 0); const simd8 table2(8, 0, 18, 4, 0, 1, 0, 1, 0, 0, 0, 3, 2, 1, 0, 0); @@ -11834,2451 +36428,4740 @@ simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, } // namespace ppc64 } // namespace simdjson -/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +// +// Stage 2 +// + +// +// Implementation-specific overrides +// namespace simdjson { namespace ppc64 { -namespace { -namespace utf8_validation { -using namespace simd; +simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { + return ppc64::stage1::json_minifier::minify<64>(buf, len, dst, dst_len); +} - simdjson_inline simd8 check_special_cases(const simd8 input, const simd8 prev1) { -// Bit 0 = Too Short (lead byte/ASCII followed by lead byte/ASCII) -// Bit 1 = Too Long (ASCII followed by continuation) -// Bit 2 = Overlong 3-byte -// Bit 4 = Surrogate -// Bit 5 = Overlong 2-byte -// Bit 7 = Two Continuations - constexpr const uint8_t TOO_SHORT = 1<<0; // 11______ 0_______ - // 11______ 11______ - constexpr const uint8_t TOO_LONG = 1<<1; // 0_______ 10______ - constexpr const uint8_t OVERLONG_3 = 1<<2; // 11100000 100_____ - constexpr const uint8_t SURROGATE = 1<<4; // 11101101 101_____ - constexpr const uint8_t OVERLONG_2 = 1<<5; // 1100000_ 10______ - constexpr const uint8_t TWO_CONTS = 1<<7; // 10______ 10______ - constexpr const uint8_t TOO_LARGE = 1<<3; // 11110100 1001____ - // 11110100 101_____ - // 11110101 1001____ - // 11110101 101_____ - // 1111011_ 1001____ - // 1111011_ 101_____ - // 11111___ 1001____ - // 11111___ 101_____ - constexpr const uint8_t TOO_LARGE_1000 = 1<<6; - // 11110101 1000____ - // 1111011_ 1000____ - // 11111___ 1000____ - constexpr const uint8_t OVERLONG_4 = 1<<6; // 11110000 1000____ +simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { + this->buf = _buf; + this->len = _len; + return ppc64::stage1::json_structural_indexer::index<64>(buf, len, *this, streaming); +} - const simd8 byte_1_high = prev1.shr<4>().lookup_16( - // 0_______ ________ - TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, - TOO_LONG, TOO_LONG, TOO_LONG, TOO_LONG, - // 10______ ________ - TWO_CONTS, TWO_CONTS, TWO_CONTS, TWO_CONTS, - // 1100____ ________ - TOO_SHORT | OVERLONG_2, - // 1101____ ________ - TOO_SHORT, - // 1110____ ________ - TOO_SHORT | OVERLONG_3 | SURROGATE, - // 1111____ ________ - TOO_SHORT | TOO_LARGE | TOO_LARGE_1000 | OVERLONG_4 - ); - constexpr const uint8_t CARRY = TOO_SHORT | TOO_LONG | TWO_CONTS; // These all have ____ in byte 1 . - const simd8 byte_1_low = (prev1 & 0x0F).lookup_16( - // ____0000 ________ - CARRY | OVERLONG_3 | OVERLONG_2 | OVERLONG_4, - // ____0001 ________ - CARRY | OVERLONG_2, - // ____001_ ________ - CARRY, - CARRY, +simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { + return ppc64::stage1::generic_validate_utf8(buf,len); +} - // ____0100 ________ - CARRY | TOO_LARGE, - // ____0101 ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - // ____011_ ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, +simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} - // ____1___ ________ - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000, - // ____1101 ________ - CARRY | TOO_LARGE | TOO_LARGE_1000 | SURROGATE, - CARRY | TOO_LARGE | TOO_LARGE_1000, - CARRY | TOO_LARGE | TOO_LARGE_1000 - ); - const simd8 byte_2_high = input.shr<4>().lookup_16( - // ________ 0_______ - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT, +simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { + return stage2::tape_builder::parse_document(*this, _doc); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { + return ppc64::stringparsing::parse_string(src, dst, replacement_char); +} + +simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { + return ppc64::stringparsing::parse_wobbly_string(src, dst); +} + +simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { + auto error = stage1(_buf, _len, stage1_mode::regular); + if (error) { return error; } + return stage2(_doc); +} + +} // namespace ppc64 +} // namespace simdjson + +/* including simdjson/ppc64/end.h: #include */ +/* begin file simdjson/ppc64/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#undef SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT +/* undefining SIMDJSON_IMPLEMENTATION from "ppc64" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/ppc64/end.h */ + +#endif // SIMDJSON_SRC_PPC64_CPP +/* end file ppc64.cpp */ +#endif +#if SIMDJSON_IMPLEMENTATION_WESTMERE +/* including westmere.cpp: #include */ +/* begin file westmere.cpp */ +#ifndef SIMDJSON_SRC_WESTMERE_CPP +#define SIMDJSON_SRC_WESTMERE_CPP + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* including simdjson/westmere.h: #include */ +/* begin file simdjson/westmere.h */ +#ifndef SIMDJSON_WESTMERE_H +#define SIMDJSON_WESTMERE_H + +/* including simdjson/westmere/begin.h: #include "simdjson/westmere/begin.h" */ +/* begin file simdjson/westmere/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "westmere" */ +#define SIMDJSON_IMPLEMENTATION westmere +/* including simdjson/westmere/base.h: #include "simdjson/westmere/base.h" */ +/* begin file simdjson/westmere/base.h */ +#ifndef SIMDJSON_WESTMERE_BASE_H +#define SIMDJSON_WESTMERE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +/** + * Implementation for Westmere (Intel SSE4.2). + */ +namespace westmere { - // ________ 1000____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE_1000 | OVERLONG_4, - // ________ 1001____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | OVERLONG_3 | TOO_LARGE, - // ________ 101_____ - TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, - TOO_LONG | OVERLONG_2 | TWO_CONTS | SURROGATE | TOO_LARGE, +class implementation; - // ________ 11______ - TOO_SHORT, TOO_SHORT, TOO_SHORT, TOO_SHORT - ); - return (byte_1_high & byte_1_low & byte_2_high); - } - simdjson_inline simd8 check_multibyte_lengths(const simd8 input, - const simd8 prev_input, const simd8 sc) { - simd8 prev2 = input.prev<2>(prev_input); - simd8 prev3 = input.prev<3>(prev_input); - simd8 must23 = simd8(must_be_2_3_continuation(prev2, prev3)); - simd8 must23_80 = must23 & uint8_t(0x80); - return must23_80 ^ sc; - } +namespace { +namespace simd { - // - // Return nonzero if there are incomplete multibyte characters at the end of the block: - // e.g. if there is a 4-byte character, but it's 3 bytes from the end. - // - simdjson_inline simd8 is_incomplete(const simd8 input) { - // If the previous input's last 3 bytes match this, they're too short (they ended at EOF): - // ... 1111____ 111_____ 11______ -#if SIMDJSON_IMPLEMENTATION_ICELAKE - static const uint8_t max_array[64] = { - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 - }; +template struct simd8; +template struct simd8x64; + +} // namespace simd +} // unnamed namespace + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BASE_H +/* end file simdjson/westmere/base.h */ +/* including simdjson/westmere/intrinsics.h: #include "simdjson/westmere/intrinsics.h" */ +/* begin file simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang #else - static const uint8_t max_array[32] = { - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 255, 255, 255, - 255, 255, 255, 255, 255, 0xf0u-1, 0xe0u-1, 0xc0u-1 - }; +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 #endif - const simd8 max_value(&max_array[sizeof(max_array)-sizeof(simd8)]); - return input.gt_bits(max_value); - } - struct utf8_checker { - // If this is nonzero, there has been a UTF-8 error. - simd8 error; - // The last input we received - simd8 prev_input_block; - // Whether the last input we received was incomplete (used for ASCII fast path) - simd8 prev_incomplete; +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); - // - // Check whether the current bytes are valid UTF-8. - // - simdjson_inline void check_utf8_bytes(const simd8 input, const simd8 prev_input) { - // Flip prev1...prev3 so we can easily determine if they are 2+, 3+ or 4+ lead bytes - // (2, 3, 4-byte leads become large positive numbers instead of small negative numbers) - simd8 prev1 = input.prev<1>(prev_input); - simd8 sc = check_special_cases(input, prev1); - this->error |= check_multibyte_lengths(input, prev_input, sc); - } +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file simdjson/westmere/intrinsics.h */ - // The only problem that can happen at EOF is that a multibyte character is too short - // or a byte value too large in the last bytes: check_special_cases only checks for bytes - // too large in the first of two bytes. - simdjson_inline void check_eof() { - // If the previous block had incomplete UTF-8 characters at the end, an ASCII block can't - // possibly finish them. - this->error |= this->prev_incomplete; - } +#if !SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +SIMDJSON_TARGET_REGION("sse4.2,pclmul,popcnt") +#endif -#ifndef SIMDJSON_IF_CONSTEXPR -#if SIMDJSON_CPLUSPLUS17 -#define SIMDJSON_IF_CONSTEXPR if constexpr +/* including simdjson/westmere/bitmanipulation.h: #include "simdjson/westmere/bitmanipulation.h" */ +/* begin file simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; #else -#define SIMDJSON_IF_CONSTEXPR if + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} #endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); #endif +} - simdjson_inline void check_next_input(const simd8x64& input) { - if(simdjson_likely(is_ascii(input))) { - this->error |= this->prev_incomplete; - } else { - // you might think that a for-loop would work, but under Visual Studio, it is not good enough. - static_assert((simd8x64::NUM_CHUNKS == 1) - ||(simd8x64::NUM_CHUNKS == 2) - || (simd8x64::NUM_CHUNKS == 4), - "We support one, two or four chunks per 64-byte block."); - SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - this->check_utf8_bytes(input.chunks[2], input.chunks[1]); - this->check_utf8_bytes(input.chunks[3], input.chunks[2]); - } - this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); - this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; - } - } - // do not forget to call check_eof! - simdjson_inline error_code errors() { - return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; - } +} // unnamed namespace +} // namespace westmere +} // namespace simdjson - }; // struct utf8_checker -} // namespace utf8_validation +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file simdjson/westmere/bitmanipulation.h */ +/* including simdjson/westmere/bitmask.h: #include "simdjson/westmere/bitmask.h" */ +/* begin file simdjson/westmere/bitmask.h */ +#ifndef SIMDJSON_WESTMERE_BITMASK_H +#define SIMDJSON_WESTMERE_BITMASK_H -using utf8_validation::utf8_checker; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processing supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} } // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ -/* begin file src/generic/stage1/json_structural_indexer.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) -/* begin file src/generic/stage1/buf_block_reader.h */ +#endif // SIMDJSON_WESTMERE_BITMASK_H +/* end file simdjson/westmere/bitmask.h */ +/* including simdjson/westmere/numberparsing_defs.h: #include "simdjson/westmere/numberparsing_defs.h" */ +/* begin file simdjson/westmere/numberparsing_defs.h */ +#ifndef SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H +#define SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H + +/* including simdjson/westmere/base.h: #include "simdjson/westmere/base.h" */ +/* begin file simdjson/westmere/base.h */ +#ifndef SIMDJSON_WESTMERE_BASE_H +#define SIMDJSON_WESTMERE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE namespace simdjson { -namespace ppc64 { +/** + * Implementation for Westmere (Intel SSE4.2). + */ +namespace westmere { + +class implementation; + namespace { +namespace simd { -// Walks through a buffer in block-sized increments, loading the last part with spaces -template -struct buf_block_reader { -public: - simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); - simdjson_inline size_t block_index(); - simdjson_inline bool has_full_block() const; - simdjson_inline const uint8_t *full_block() const; - /** - * Get the last block, padded with spaces. - * - * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this - * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there - * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. - * - * @return the number of effective characters in the last block. - */ - simdjson_inline size_t get_remainder(uint8_t *dst) const; - simdjson_inline void advance(); -private: - const uint8_t *buf; - const size_t len; - const size_t lenminusstep; - size_t idx; -}; +template struct simd8; +template struct simd8x64; -// Routines to print masks and text for debugging bitmask operations -simdjson_unused static char * format_input_text_64(const uint8_t *text) { - static char buf[sizeof(simd8x64) + 1]; - for (size_t i=0; i); i++) { - buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); - } - buf[sizeof(simd8x64)] = '\0'; - return buf; -} +} // namespace simd +} // unnamed namespace -// Routines to print masks and text for debugging bitmask operations -simdjson_unused static char * format_input_text(const simd8x64& in) { - static char buf[sizeof(simd8x64) + 1]; - in.store(reinterpret_cast(buf)); - for (size_t i=0; i); i++) { - if (buf[i] < ' ') { buf[i] = '_'; } - } - buf[sizeof(simd8x64)] = '\0'; - return buf; +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BASE_H +/* end file simdjson/westmere/base.h */ +/* including simdjson/westmere/intrinsics.h: #include "simdjson/westmere/intrinsics.h" */ +/* begin file simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 +#endif + +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); + +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file simdjson/westmere/intrinsics.h */ + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; } -simdjson_unused static char * format_mask(uint64_t mask) { - static char buf[sizeof(simd8x64) + 1]; - for (size_t i=0; i<64; i++) { - buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; - } - buf[64] = '\0'; - return buf; -} +} // namespace numberparsing +} // namespace westmere +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H +/* end file simdjson/westmere/numberparsing_defs.h */ +/* including simdjson/westmere/simd.h: #include "simdjson/westmere/simd.h" */ +/* begin file simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { +namespace simd { + + template + struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} -template -simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } -template -simdjson_inline size_t buf_block_reader::block_index() { return idx; } + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } -template -simdjson_inline bool buf_block_reader::has_full_block() const { - return idx < lenminusstep; -} + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } -template -simdjson_inline const uint8_t *buf_block_reader::full_block() const { - return &buf[idx]; -} + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); + } -template -simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { - if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers - std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. - std::memcpy(dst, buf + idx, len - idx); - return len - idx; -} + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } -template -simdjson_inline void buf_block_reader::advance() { - idx += STEP_SIZE; -} + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; -} // unnamed namespace -} // namespace ppc64 -} // namespace simdjson -/* end file src/generic/stage1/buf_block_reader.h */ -/* begin file src/generic/stage1/json_string_scanner.h */ -namespace simdjson { -namespace ppc64 { -namespace { -namespace stage1 { + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } -struct json_string_block { - // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 - simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : - _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; - // Escaped characters (characters following an escape() character) - simdjson_inline uint64_t escaped() const { return _escaped; } - // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) - simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } - // Real (non-backslashed) quotes - simdjson_inline uint64_t quote() const { return _quote; } - // Start quotes of strings - simdjson_inline uint64_t string_start() const { return _quote & _in_string; } - // End quotes of strings - simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } - // Only characters inside the string (not including the quotes) - simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } - // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } - // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } - // Tail of string (everything except the start quote) - simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } - // backslash characters - uint64_t _backslash; - // escaped characters (backslashed--does not include the hex characters after \u) - uint64_t _escaped; - // real quotes (non-backslashed ones) - uint64_t _quote; - // string characters (includes start quote but not end quote) - uint64_t _in_string; -}; + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; -// Scans blocks for string characters, storing the state necessary to do so -class json_string_scanner { -public: - simdjson_inline json_string_block next(const simd::simd8x64& in); - // Returns either UNCLOSED_STRING or SUCCESS - simdjson_inline error_code finish(); + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } -private: - // Intended to be defined by the implementation - simdjson_inline uint64_t find_escaped(uint64_t escape); - simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } - // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). - uint64_t prev_in_string = 0ULL; - // Whether the first character of the next iteration is escaped. - uint64_t prev_escaped = 0ULL; -}; + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } -// -// Finds escaped characters (characters following \). -// -// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). -// -// Does this by: -// - Shift the escape mask to get potentially escaped characters (characters after backslashes). -// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) -// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) -// -// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all -// escape sequences, filters out the ones that start on even bits, and adds that to the mask of -// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since -// the start bit causes a carry), and leaves even-bit sequences alone. -// -// Example: -// -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape -// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape -// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later -// invert_mask | | cxxx c xx c| even_seq << 1 -// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit -// escaped | x | x x x x x x x x | -// desired | x | x x x x x x x x | -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// -simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { - // If there was overflow, pretend the first character isn't a backslash - backslash &= ~prev_escaped; - uint64_t follows_escape = backslash << 1 | prev_escaped; + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } - // Get sequences starting on even bits by clearing out the odd series using + - const uint64_t even_bits = 0x5555555555555555ULL; - uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; - uint64_t sequences_starting_on_even_bits; - prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); - uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } - // Mask every other backslashed character as an escaped character - // Flip the mask for sequences that start on even bits, to correct them - return (even_bits ^ invert_mask) & follows_escape; -} + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } -// -// Return a mask of all string characters plus end quotes. -// -// prev_escaped is overflow saying whether the next character is escaped. -// prev_in_string is overflow saying whether we're still in a string. -// -// Backslash sequences outside of quotes will be detected in stage 2. -// -simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { - const uint64_t backslash = in.eq('\\'); - const uint64_t escaped = find_escaped(backslash); - const uint64_t quote = in.eq('"') & ~escaped; + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 - // - // prefix_xor flips on bits inside the string (and flips off the end quote). - // - // Then we xor with prev_in_string: if we were in a string already, its effect is flipped - // (characters inside strings are outside, and characters outside strings are inside). - // - const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; +} // namespace simd +} // unnamed namespace +} // namespace westmere +} // namespace simdjson - // - // Check if we're still in a string at the end of the box so the next block will know - // - // right shift of a signed value expected to be well-defined and standard - // compliant as of C++20, John Regher from Utah U. says this is fine code - // - prev_in_string = uint64_t(static_cast(in_string) >> 63); +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file simdjson/westmere/simd.h */ +/* including simdjson/westmere/stringparsing_defs.h: #include "simdjson/westmere/stringparsing_defs.h" */ +/* begin file simdjson/westmere/stringparsing_defs.h */ +#ifndef SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H +#define SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H - // Use ^ to turn the beginning quote off, and the end quote on. +/* including simdjson/westmere/bitmanipulation.h: #include "simdjson/westmere/bitmanipulation.h" */ +/* begin file simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H - // We are returning a function-local object so either we get a move constructor - // or we get copy elision. - return json_string_block( - backslash, - escaped, - quote, - in_string - ); +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO } -simdjson_inline error_code json_string_scanner::finish() { - if (prev_in_string) { - return UNCLOSED_STRING; - } - return SUCCESS; +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif } -} // namespace stage1 } // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/json_string_scanner.h */ -/* begin file src/generic/stage1/json_scanner.h */ + +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file simdjson/westmere/bitmanipulation.h */ +/* including simdjson/westmere/simd.h: #include "simdjson/westmere/simd.h" */ +/* begin file simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace ppc64 { +namespace westmere { namespace { -namespace stage1 { +namespace simd { + + template + struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; -/** - * A block of scanned json, with information on operators and scalars. - * - * We seek to identify pseudo-structural characters. Anything that is inside - * a string must be omitted (hence & ~_string.string_tail()). - * Otherwise, pseudo-structural characters come in two forms. - * 1. We have the structural characters ([,],{,},:, comma). The - * term 'structural character' is from the JSON RFC. - * 2. We have the 'scalar pseudo-structural characters'. - * Scalars are quotes, and any character except structural characters and white space. - * - * To identify the scalar pseudo-structural characters, we must look at what comes - * before them: it must be a space, a quote or a structural characters. - * Starting with simdjson v0.3, we identify them by - * negation: we identify everything that is followed by a non-quote scalar, - * and we negate that. Whatever remains must be a 'scalar pseudo-structural character'. - */ -struct json_block { -public: - // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 - simdjson_inline json_block(json_string_block&& string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : - _string(std::move(string)), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} - simdjson_inline json_block(json_string_block string, json_character_block characters, uint64_t follows_potential_nonquote_scalar) : - _string(string), _characters(characters), _follows_potential_nonquote_scalar(follows_potential_nonquote_scalar) {} + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; - /** - * The start of structurals. - * In simdjson prior to v0.3, these were called the pseudo-structural characters. - **/ - simdjson_inline uint64_t structural_start() const noexcept { return potential_structural_start() & ~_string.string_tail(); } - /** All JSON whitespace (i.e. not in a string) */ - simdjson_inline uint64_t whitespace() const noexcept { return non_quote_outside_string(_characters.whitespace()); } + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} - // Helpers + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } - /** Whether the given characters are inside a string (only works on non-quotes) */ - simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const noexcept { return _string.non_quote_inside_string(mask); } - /** Whether the given characters are outside a string (only works on non-quotes) */ - simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const noexcept { return _string.non_quote_outside_string(mask); } + static const int SIZE = sizeof(base>::value); - // string and escape characters - json_string_block _string; - // whitespace, structural characters ('operators'), scalars - json_character_block _characters; - // whether the previous character was a scalar - uint64_t _follows_potential_nonquote_scalar; -private: - // Potential structurals (i.e. disregarding strings) + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); + } + }; - /** - * structural elements ([,],{,},:, comma) plus scalar starts like 123, true and "abc". - * They may reside inside a string. - **/ - simdjson_inline uint64_t potential_structural_start() const noexcept { return _characters.op() | potential_scalar_start(); } - /** - * The start of non-operator runs, like 123, true and "abc". - * It main reside inside a string. - **/ - simdjson_inline uint64_t potential_scalar_start() const noexcept { - // The term "scalar" refers to anything except structural characters and white space - // (so letters, numbers, quotes). - // Whenever it is preceded by something that is not a structural element ({,},[,],:, ") nor a white-space - // then we know that it is irrelevant structurally. - return _characters.scalar() & ~follows_potential_scalar(); - } - /** - * Whether the given character is immediately after a non-operator like 123, true. - * The characters following a quote are not included. - */ - simdjson_inline uint64_t follows_potential_scalar() const noexcept { - // _follows_potential_nonquote_scalar: is defined as marking any character that follows a character - // that is not a structural element ({,},[,],:, comma) nor a quote (") and that is not a - // white space. - // It is understood that within quoted region, anything at all could be marked (irrelevant). - return _follows_potential_nonquote_scalar; - } -}; + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } -/** - * Scans JSON for important bits: structural characters or 'operators', strings, and scalars. - * - * The scanner starts by calculating two distinct things: - * - string characters (taking \" into account) - * - structural characters or 'operators' ([]{},:, comma) - * and scalars (runs of non-operators like 123, true and "abc") - * - * To minimize data dependency (a key component of the scanner's speed), it finds these in parallel: - * in particular, the operator/scalar bit will find plenty of things that are actually part of - * strings. When we're done, json_block will fuse the two together by masking out tokens that are - * part of a string. - */ -class json_scanner { -public: - json_scanner() = default; - simdjson_inline json_block next(const simd::simd8x64& in); - // Returns either UNCLOSED_STRING or SUCCESS - simdjson_inline error_code finish(); + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; -private: - // Whether the last character of the previous iteration is part of a scalar token - // (anything except whitespace or a structural character/'operator'). - uint64_t prev_scalar = 0ULL; - json_string_scanner string_scanner{}; -}; + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; -// -// Check if the current character immediately follows a matching character. -// -// For example, this checks for quotes with backslashes in front of them: -// -// const uint64_t backslashed_quote = in.eq('"') & immediately_follows(in.eq('\'), prev_backslash); -// -simdjson_inline uint64_t follows(const uint64_t match, uint64_t &overflow) { - const uint64_t result = match << 1 | overflow; - overflow = match >> 63; - return result; -} + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } -simdjson_inline json_block json_scanner::next(const simd::simd8x64& in) { - json_string_block strings = string_scanner.next(in); - // identifies the white-space and the structural characters - json_character_block characters = json_character_block::classify(in); - // The term "scalar" refers to anything except structural characters and white space - // (so letters, numbers, quotes). - // We want follows_scalar to mark anything that follows a non-quote scalar (so letters and numbers). - // - // A terminal quote should either be followed by a structural character (comma, brace, bracket, colon) - // or nothing. However, we still want ' "a string"true ' to mark the 't' of 'true' as a potential - // pseudo-structural character just like we would if we had ' "a string" true '; otherwise we - // may need to add an extra check when parsing strings. - // - // Performance: there are many ways to skin this cat. - const uint64_t nonquote_scalar = characters.scalar() & ~strings.quote(); - uint64_t follows_nonquote_scalar = follows(nonquote_scalar, prev_scalar); - // We are returning a function-local object so either we get a move constructor - // or we get copy elision. - return json_block( - strings,// strings is a function-local object so either it moves or the copy is elided. - characters, - follows_nonquote_scalar - ); -} + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } -simdjson_inline error_code json_scanner::finish() { - return string_scanner.finish(); -} + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } -} // namespace stage1 + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd } // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/json_scanner.h */ -/* begin file src/generic/stage1/json_minifier.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) + +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file simdjson/westmere/simd.h */ namespace simdjson { -namespace ppc64 { +namespace westmere { namespace { -namespace stage1 { - -class json_minifier { -public: - template - static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; -private: - simdjson_inline json_minifier(uint8_t *_dst) - : dst{_dst} - {} - template - simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; - simdjson_inline void next(const simd::simd8x64& in, const json_block& block); - simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); - json_scanner scanner{}; - uint8_t *dst; -}; +using namespace simd; -simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { - uint64_t mask = block.whitespace(); - dst += in.compress(mask, dst); +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + 16); + v0.store(dst); + v1.store(dst + 16); + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; } -simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { - error_code error = scanner.finish(); - if (error) { dst_len = 0; return error; } - dst_len = dst - dst_start; - return SUCCESS; -} +} // unnamed namespace +} // namespace westmere +} // namespace simdjson -template<> -simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - simd::simd8x64 in_2(block_buf+64); - json_block block_1 = scanner.next(in_1); - json_block block_2 = scanner.next(in_2); - this->next(in_1, block_1); - this->next(in_2, block_2); - reader.advance(); -} +#endif // SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H +/* end file simdjson/westmere/stringparsing_defs.h */ +/* end file simdjson/westmere/begin.h */ +/* including simdjson/generic/amalgamated.h for westmere: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for westmere */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif -template<> -simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - json_block block_1 = scanner.next(in_1); - this->next(block_buf, block_1); - reader.advance(); -} +/* including simdjson/generic/base.h for westmere: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for westmere */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -template -error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { - buf_block_reader reader(buf, len); - json_minifier minifier(dst); +namespace simdjson { +namespace westmere { - // Index the first n-1 blocks - while (reader.has_full_block()) { - minifier.step(reader.full_block(), reader); - } +struct open_container; +class dom_parser_implementation; - // Index the last (remainder) block, padded with spaces - uint8_t block[STEP_SIZE]; - size_t remaining_bytes = reader.get_remainder(block); - if (remaining_bytes > 0) { - // We do not want to write directly to the output stream. Rather, we write - // to a local buffer (for safety). - uint8_t out_block[STEP_SIZE]; - uint8_t * const guarded_dst{minifier.dst}; - minifier.dst = out_block; - minifier.step(block, reader); - size_t to_write = minifier.dst - out_block; - // In some cases, we could be enticed to consider the padded spaces - // as part of the string. This is fine as long as we do not write more - // than we consumed. - if(to_write > remaining_bytes) { to_write = remaining_bytes; } - memcpy(guarded_dst, out_block, to_write); - minifier.dst = guarded_dst + to_write; - } - return minifier.finish(dst, dst_len); -} +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; -} // namespace stage1 -} // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/json_minifier.h */ -/* begin file src/generic/stage1/find_next_document_index.h */ + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for westmere */ +/* including simdjson/generic/jsoncharutils.h for westmere: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for westmere */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace ppc64 { +namespace westmere { namespace { +namespace jsoncharutils { -/** - * This algorithm is used to quickly identify the last structural position that - * makes up a complete document. - * - * It does this by going backwards and finding the last *document boundary* (a - * place where one value follows another without a comma between them). If the - * last document (the characters after the boundary) has an equal number of - * start and end brackets, it is considered complete. - * - * Simply put, we iterate over the structural characters, starting from - * the end. We consider that we found the end of a JSON document when the - * first element of the pair is NOT one of these characters: '{' '[' ':' ',' - * and when the second element is NOT one of these characters: '}' ']' ':' ','. - * - * This simple comparison works most of the time, but it does not cover cases - * where the batch's structural indexes contain a perfect amount of documents. - * In such a case, we do not have access to the structural index which follows - * the last document, therefore, we do not have access to the second element in - * the pair, and that means we cannot identify the last document. To fix this - * issue, we keep a count of the open and closed curly/square braces we found - * while searching for the pair. When we find a pair AND the count of open and - * closed curly/square braces is the same, we know that we just passed a - * complete document, therefore the last json buffer location is the end of the - * batch. - */ -simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &parser) { - // Variant: do not count separately, just figure out depth - if(parser.n_structural_indexes == 0) { return 0; } - auto arr_cnt = 0; - auto obj_cnt = 0; - for (auto i = parser.n_structural_indexes - 1; i > 0; i--) { - auto idxb = parser.structural_indexes[i]; - switch (parser.buf[idxb]) { - case ':': - case ',': - continue; - case '}': - obj_cnt--; - continue; - case ']': - arr_cnt--; - continue; - case '{': - obj_cnt++; - break; - case '[': - arr_cnt++; - break; - } - auto idxa = parser.structural_indexes[i - 1]; - switch (parser.buf[idxa]) { - case '{': - case '[': - case ':': - case ',': - continue; - } - // Last document is complete, so the next document will appear after! - if (!arr_cnt && !obj_cnt) { - return parser.n_structural_indexes; - } - // Last document is incomplete; mark the document at i + 1 as the next one - return i; - } - // If we made it to the end, we want to finish counting to see if we have a full document. - switch (parser.buf[parser.structural_indexes[0]]) { - case '}': - obj_cnt--; - break; - case ']': - arr_cnt--; - break; - case '{': - obj_cnt++; - break; - case '[': - arr_cnt++; - break; - } - if (!arr_cnt && !obj_cnt) { - // We have a complete document. - return parser.n_structural_indexes; +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; } - return 0; + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; } +#endif +} // namespace jsoncharutils } // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/find_next_document_index.h */ + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for westmere */ +/* including simdjson/generic/atomparsing.h for westmere: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for westmere */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include namespace simdjson { -namespace ppc64 { +namespace westmere { namespace { -namespace stage1 { +/// @private +namespace atomparsing { -class bit_indexer { +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for westmere */ +/* including simdjson/generic/dom_parser_implementation.h for westmere: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for westmere */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { public: - uint32_t *tail; + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); - simdjson_inline bit_indexer(uint32_t *index_buf) : tail(index_buf) {} +}; - // flatten out values in 'bits' assuming that they are are to have values of idx - // plus their position in the bitvector, and store these indexes at - // base_ptr[base] incrementing base as we go - // will potentially store extra values beyond end of valid bits, so base_ptr - // needs to be large enough to handle this - // - // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own - // version of the code. -#ifdef SIMDJSON_CUSTOM_BIT_INDEXER - simdjson_inline void write(uint32_t idx, uint64_t bits); -#else - simdjson_inline void write(uint32_t idx, uint64_t bits) { - // In some instances, the next branch is expensive because it is mispredicted. - // Unfortunately, in other cases, - // it helps tremendously. - if (bits == 0) - return; -#if SIMDJSON_PREFER_REVERSE_BITS - /** - * ARM lacks a fast trailing zero instruction, but it has a fast - * bit reversal instruction and a fast leading zero instruction. - * Thus it may be profitable to reverse the bits (once) and then - * to rely on a sequence of instructions that call the leading - * zero instruction. - * - * Performance notes: - * The chosen routine is not optimal in terms of data dependency - * since zero_leading_bit might require two instructions. However, - * it tends to minimize the total number of instructions which is - * beneficial. - */ +} // namespace westmere +} // namespace simdjson - uint64_t rev_bits = reverse_bits(bits); - int cnt = static_cast(count_ones(bits)); - int i = 0; - // Do the first 8 all together - for (; i<8; i++) { - int lz = leading_zeroes(rev_bits); - this->tail[i] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } - // Do the next 8 all together (we hope in most cases it won't happen at all - // and the branch is easily predicted). - if (simdjson_unlikely(cnt > 8)) { - i = 8; - for (; i<16; i++) { - int lz = leading_zeroes(rev_bits); - this->tail[i] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } +namespace simdjson { +namespace westmere { +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} - // Most files don't have 16+ structurals per block, so we take several basically guaranteed - // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) - // or the start of a value ("abc" true 123) every four characters. - if (simdjson_unlikely(cnt > 16)) { - i = 16; - while (rev_bits != 0) { - int lz = leading_zeroes(rev_bits); - this->tail[i++] = static_cast(idx) + lz; - rev_bits = zero_leading_bit(rev_bits, lz); - } - } - } - this->tail += cnt; -#else // SIMDJSON_PREFER_REVERSE_BITS - /** - * Under recent x64 systems, we often have both a fast trailing zero - * instruction and a fast 'clear-lower-bit' instruction so the following - * algorithm can be competitive. - */ +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } - int cnt = static_cast(count_ones(bits)); - // Do the first 8 all together - for (int i=0; i<8; i++) { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for westmere */ +/* including simdjson/generic/implementation_simdjson_result_base.h for westmere: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for westmere */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for westmere */ +/* including simdjson/generic/numberparsing.h for westmere: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for westmere */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace westmere { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; - // Do the next 8 all together (we hope in most cases it won't happen at all - // and the branch is easily predicted). - if (simdjson_unlikely(cnt > 8)) { - for (int i=8; i<16; i++) { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); - } - // Most files don't have 16+ structurals per block, so we take several basically guaranteed - // branch mispredictions here. 16+ structurals per block means either punctuation ({} [] , :) - // or the start of a value ("abc" true 123) every four characters. - if (simdjson_unlikely(cnt > 16)) { - int i = 16; - do { - this->tail[i] = idx + trailing_zeroes(bits); - bits = clear_lowest_bit(bits); - i++; - } while (i < cnt); - } + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } - this->tail += cnt; -#endif + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; } -#endif // SIMDJSON_CUSTOM_BIT_INDEXER + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} -}; +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} -class json_structural_indexer { -public: - /** - * Find the important bits of JSON in a 128-byte chunk, and add them to structural_indexes. - * - * @param partial Setting the partial parameter to true allows the find_structural_bits to - * tolerate unclosed strings. The caller should still ensure that the input is valid UTF-8. If - * you are processing substrings, you may want to call on a function like trimmed_length_safe_utf8. - */ - template - static error_code index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept; +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. -private: - simdjson_inline json_structural_indexer(uint32_t *structural_indexes); - template - simdjson_inline void step(const uint8_t *block, buf_block_reader &reader) noexcept; - simdjson_inline void next(const simd::simd8x64& in, const json_block& block, size_t idx); - simdjson_inline error_code finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial); + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} - json_scanner scanner{}; - utf8_checker checker{}; - bit_indexer indexer; - uint64_t prev_structurals = 0; - uint64_t unescaped_chars_error = 0; -}; +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} -simdjson_inline json_structural_indexer::json_structural_indexer(uint32_t *structural_indexes) : indexer{structural_indexes} {} +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} -// Skip the last character if it is partial -simdjson_inline size_t trim_partial_utf8(const uint8_t *buf, size_t len) { - if (simdjson_unlikely(len < 3)) { - switch (len) { - case 2: - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 2 bytes left - return len; - case 1: - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - return len; - case 0: - return len; +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); } } - if (buf[len-1] >= 0xc0) { return len-1; } // 2-, 3- and 4-byte characters with only 1 byte left - if (buf[len-2] >= 0xe0) { return len-2; } // 3- and 4-byte characters with only 1 byte left - if (buf[len-3] >= 0xf0) { return len-3; } // 4-byte characters with only 3 bytes left - return len; + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; } +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing // -// PERF NOTES: -// We pipe 2 inputs through these stages: -// 1. Load JSON into registers. This takes a long time and is highly parallelizable, so we load -// 2 inputs' worth at once so that by the time step 2 is looking for them input, it's available. -// 2. Scan the JSON for critical data: strings, scalars and operators. This is the critical path. -// The output of step 1 depends entirely on this information. These functions don't quite use -// up enough CPU: the second half of the functions is highly serial, only using 1 execution core -// at a time. The second input's scans has some dependency on the first ones finishing it, but -// they can make a lot of progress before they need that information. -// 3. Step 1 doesn't use enough capacity, so we run some extra stuff while we're waiting for that -// to finish: utf-8 checks and generating the output from the last iteration. -// -// The reason we run 2 inputs at a time, is steps 2 and 3 are *still* not enough to soak up all -// available capacity with just one input. Running 2 at a time seems to give the CPU a good enough -// workout. +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. // -template -error_code json_structural_indexer::index(const uint8_t *buf, size_t len, dom_parser_implementation &parser, stage1_mode partial) noexcept { - if (simdjson_unlikely(len > parser.capacity())) { return CAPACITY; } - // We guard the rest of the code so that we can assume that len > 0 throughout. - if (len == 0) { return EMPTY; } - if (is_streaming(partial)) { - len = trim_partial_utf8(buf, len); - // If you end up with an empty window after trimming - // the partial UTF-8 bytes, then chances are good that you - // have an UTF-8 formatting error. - if(len == 0) { return UTF8_ERROR; } +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } } - buf_block_reader reader(buf, len); - json_structural_indexer indexer(parser.structural_indexes.get()); - // Read all but the last block - while (reader.has_full_block()) { - indexer.step(reader.full_block(), reader); + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); } - // Take care of the last block (will always be there unless file is empty which is - // not supposed to happen.) - uint8_t block[STEP_SIZE]; - if (simdjson_unlikely(reader.get_remainder(block) == 0)) { return UNEXPECTED_ERROR; } - indexer.step(block, reader); - return indexer.finish(parser, reader.block_index(), len, partial); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; } -template<> -simdjson_inline void json_structural_indexer::step<128>(const uint8_t *block, buf_block_reader<128> &reader) noexcept { - simd::simd8x64 in_1(block); - simd::simd8x64 in_2(block+64); - json_block block_1 = scanner.next(in_1); - json_block block_2 = scanner.next(in_2); - this->next(in_1, block_1, reader.block_index()); - this->next(in_2, block_2, reader.block_index()+64); - reader.advance(); -} +// Inlineable functions +namespace { -template<> -simdjson_inline void json_structural_indexer::step<64>(const uint8_t *block, buf_block_reader<64> &reader) noexcept { - simd::simd8x64 in_1(block); - json_block block_1 = scanner.next(in_1); - this->next(in_1, block_1, reader.block_index()); - reader.advance(); -} +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } -simdjson_inline void json_structural_indexer::next(const simd::simd8x64& in, const json_block& block, size_t idx) { - uint64_t unescaped = in.lteq(0x1F); -#if SIMDJSON_UTF8VALIDATION - checker.check_next_input(in); -#endif - indexer.write(uint32_t(idx-64), prev_structurals); // Output *last* iteration's structurals to the parser - prev_structurals = block.structural_start(); - unescaped_chars_error |= block.non_quote_inside_string(unescaped); + return i; } -simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementation &parser, size_t idx, size_t len, stage1_mode partial) { - // Write out the final iteration's structurals - indexer.write(uint32_t(idx-64), prev_structurals); - error_code error = scanner.finish(); - // We deliberately break down the next expression so that it is - // human readable. - const bool should_we_exit = is_streaming(partial) ? - ((error != SUCCESS) && (error != UNCLOSED_STRING)) // when partial we tolerate UNCLOSED_STRING - : (error != SUCCESS); // if partial is false, we must have SUCCESS - const bool have_unclosed_string = (error == UNCLOSED_STRING); - if (simdjson_unlikely(should_we_exit)) { return error; } - if (unescaped_chars_error) { - return UNESCAPED_CHARS; - } - parser.n_structural_indexes = uint32_t(indexer.tail - parser.structural_indexes.get()); - /*** - * The On Demand API requires special padding. - * - * This is related to https://github.com/simdjson/simdjson/issues/906 - * Basically, we want to make sure that if the parsing continues beyond the last (valid) - * structural character, it quickly stops. - * Only three structural characters can be repeated without triggering an error in JSON: [,] and }. - * We repeat the padding character (at 'len'). We don't know what it is, but if the parsing - * continues, then it must be [,] or }. - * Suppose it is ] or }. We backtrack to the first character, what could it be that would - * not trigger an error? It could be ] or } but no, because you can't start a document that way. - * It can't be a comma, a colon or any simple value. So the only way we could continue is - * if the repeated character is [. But if so, the document must start with [. But if the document - * starts with [, it should end with ]. If we enforce that rule, then we would get - * ][[ which is invalid. - * - * This is illustrated with the test array_iterate_unclosed_error() on the following input: - * R"({ "a": [,,)" - **/ - parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); // used later in partial == stage1_mode::streaming_final - parser.structural_indexes[parser.n_structural_indexes + 1] = uint32_t(len); - parser.structural_indexes[parser.n_structural_indexes + 2] = 0; - parser.next_structural_index = 0; - // a valid JSON file cannot have zero structural indexes - we should have found something - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { - return EMPTY; +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } } - if (simdjson_unlikely(parser.structural_indexes[parser.n_structural_indexes - 1] > len)) { - return UNEXPECTED_ERROR; + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } } - if (partial == stage1_mode::streaming_partial) { - // If we have an unclosed string, then the last structural - // will be the quote and we want to make sure to omit it. - if(have_unclosed_string) { - parser.n_structural_indexes--; - // a valid JSON file cannot have zero structural indexes - we should have found something - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { return CAPACITY; } - } - // We truncate the input to the end of the last complete document (or zero). - auto new_structural_indexes = find_next_document_index(parser); - if (new_structural_indexes == 0 && parser.n_structural_indexes > 0) { - if(parser.structural_indexes[0] == 0) { - // If the buffer is partial and we started at index 0 but the document is - // incomplete, it's too big to parse. - return CAPACITY; - } else { - // It is possible that the document could be parsed, we just had a lot - // of white space. - parser.n_structural_indexes = 0; - return EMPTY; - } - } - parser.n_structural_indexes = new_structural_indexes; - } else if (partial == stage1_mode::streaming_final) { - if(have_unclosed_string) { parser.n_structural_indexes--; } - // We truncate the input to the end of the last complete document (or zero). - // Because partial == stage1_mode::streaming_final, it means that we may - // silently ignore trailing garbage. Though it sounds bad, we do it - // deliberately because many people who have streams of JSON documents - // will truncate them for processing. E.g., imagine that you are uncompressing - // the data from a size file or receiving it in chunks from the network. You - // may not know where exactly the last document will be. Meanwhile the - // document_stream instances allow people to know the JSON documents they are - // parsing (see the iterator.source() method). - parser.n_structural_indexes = find_next_document_index(parser); - // We store the initial n_structural_indexes so that the client can see - // whether we used truncation. If initial_n_structural_indexes == parser.n_structural_indexes, - // then this will query parser.structural_indexes[parser.n_structural_indexes] which is len, - // otherwise, it will copy some prior index. - parser.structural_indexes[parser.n_structural_indexes + 1] = parser.structural_indexes[parser.n_structural_indexes]; - // This next line is critical, do not change it unless you understand what you are - // doing. - parser.structural_indexes[parser.n_structural_indexes] = uint32_t(len); - if (simdjson_unlikely(parser.n_structural_indexes == 0u)) { - // We tolerate an unclosed string at the very end of the stream. Indeed, users - // often load their data in bulk without being careful and they want us to ignore - // the trailing garbage. - return EMPTY; + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; } + } else { + overflow = p-src > 19; } - checker.check_eof(); - return checker.errors(); + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; } -} // namespace stage1 -} // unnamed namespace -} // namespace ppc64 -} // namespace simdjson -/* end file src/generic/stage1/json_structural_indexer.h */ -/* begin file src/generic/stage1/utf8_validator.h */ -namespace simdjson { -namespace ppc64 { -namespace { -namespace stage1 { +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} -/** - * Validates that the string is actual UTF-8. - */ -template -bool generic_validate_utf8(const uint8_t * input, size_t length) { - checker c{}; - buf_block_reader<64> reader(input, length); - while (reader.has_full_block()) { - simd::simd8x64 in(reader.full_block()); - c.check_next_input(in); - reader.advance(); - } - uint8_t block[64]{}; - reader.get_remainder(block); - simd::simd8x64 in(block); - c.check_next_input(in); - reader.advance(); - c.check_eof(); - return c.errors() == error_code::SUCCESS; +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; } -bool generic_validate_utf8(const char * input, size_t length) { - return generic_validate_utf8(reinterpret_cast(input),length); +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; } -} // namespace stage1 -} // unnamed namespace -} // namespace ppc64 -} // namespace simdjson -/* end file src/generic/stage1/utf8_validator.h */ +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); -// -// Stage 2 -// -/* begin file src/generic/stage2/stringparsing.h */ -// This file contains the common code every implementation uses -// It is intended to be included multiple times and compiled multiple times + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } -namespace simdjson { -namespace ppc64 { -namespace { -/// @private -namespace stringparsing { + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } -// begin copypasta -// These chars yield themselves: " \ / -// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab -// u not handled in this table as it's complex -static const uint8_t escape_map[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. - 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. - 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + exponent += exp_neg ? 0-exp : exp; + } - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -}; + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } -// handle a unicode codepoint -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, - uint8_t **dst_ptr, bool allow_replacement) { - // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) - constexpr uint32_t substitution_code_point = 0xfffd; - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} - // We have already checked that the high surrogate is valid and - // (code_point - 0xd800) < 1024. - // - // Check that code_point_2 is in the range 0xdc00..0xdfff - // and that code_point_2 was parsed from valid hex. - uint32_t low_bit = code_point_2 - 0xdc00; - if (low_bit >> 10) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; } - } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { - // If we encounter a low surrogate (not preceded by a high surrogate) - // then we have an error. - if(!allow_replacement) { return false; } - code_point = substitution_code_point; + } else { + overflow = p-src > 19; } - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; -} + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; -// handle a unicode codepoint using the wobbly convention -// https://simonsapin.github.io/wtf-8/ -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, - uint8_t **dst_ptr) { - // It is not ideal that this function is nearly identical to handle_unicode_codepoint. // - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - uint32_t low_bit = code_point_2 - 0xdc00; - if ((low_bit >> 10) == 0) { - code_point = - (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +} // namespace numberparsing + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); } + return out; +} + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for westmere */ + +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for westmere: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; } +} - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; } +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} -/** - * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There - * must be an unescaped quote terminating the string. It returns the final output - * position as pointer. In case of error (e.g., the string has bad escaped codes), - * then null_nullptrptr is returned. It is assumed that the output buffer is large - * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + - * SIMDJSON_PADDING bytes. - */ -simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; } -simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { - // It is not ideal that this function is nearly identical to parse_string. - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint_wobbly(&src, &dst)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); } -} // namespace stringparsing -} // unnamed namespace -} // namespace ppc64 +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/stringparsing.h */ -/* begin file src/generic/stage2/tape_builder.h */ -/* begin file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/logger.h */ -// This is for an internal-only stage 2 specific logger. -// Set LOG_ENABLED = true to log what stage 2 is doing! + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for westmere */ +/* end file simdjson/generic/amalgamated.h for westmere */ +/* including simdjson/westmere/end.h: #include "simdjson/westmere/end.h" */ +/* begin file simdjson/westmere/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "westmere" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/westmere/end.h */ + +#endif // SIMDJSON_WESTMERE_H +/* end file simdjson/westmere.h */ +/* including simdjson/westmere/implementation.h: #include */ +/* begin file simdjson/westmere/implementation.h */ +#ifndef SIMDJSON_WESTMERE_IMPLEMENTATION_H +#define SIMDJSON_WESTMERE_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE namespace simdjson { -namespace ppc64 { +namespace westmere { + +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation("westmere", "Intel/AMD SSE4.2", internal::instruction_set::SSE42 | internal::instruction_set::PCLMULQDQ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_IMPLEMENTATION_H +/* end file simdjson/westmere/implementation.h */ + +/* including simdjson/westmere/begin.h: #include */ +/* begin file simdjson/westmere/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "westmere" */ +#define SIMDJSON_IMPLEMENTATION westmere +/* including simdjson/westmere/base.h: #include "simdjson/westmere/base.h" */ +/* begin file simdjson/westmere/base.h */ +#ifndef SIMDJSON_WESTMERE_BASE_H +#define SIMDJSON_WESTMERE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +/** + * Implementation for Westmere (Intel SSE4.2). + */ +namespace westmere { + +class implementation; + namespace { -namespace logger { +namespace simd { - static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +template struct simd8; +template struct simd8x64; -#if SIMDJSON_VERBOSE_LOGGING - static constexpr const bool LOG_ENABLED = true; +} // namespace simd +} // unnamed namespace + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BASE_H +/* end file simdjson/westmere/base.h */ +/* including simdjson/westmere/intrinsics.h: #include "simdjson/westmere/intrinsics.h" */ +/* begin file simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang #else - static constexpr const bool LOG_ENABLED = false; +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 #endif - static constexpr const int LOG_EVENT_LEN = 20; - static constexpr const int LOG_BUFFER_LEN = 30; - static constexpr const int LOG_SMALL_BUFFER_LEN = 10; - static constexpr const int LOG_INDEX_LEN = 5; - static int log_depth; // Not threadsafe. Log only. +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); - // Helper to turn unprintable or newline characters into spaces - static simdjson_inline char printable_char(char c) { - if (c >= 0x20) { - return c; - } else { - return ' '; - } - } +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file simdjson/westmere/intrinsics.h */ - // Print the header and set up log_start - static simdjson_inline void log_start() { - if (LOG_ENABLED) { - log_depth = 0; - printf("\n"); - printf("| %-*s | %-*s | %-*s | %-*s | Detail |\n", LOG_EVENT_LEN, "Event", LOG_BUFFER_LEN, "Buffer", LOG_SMALL_BUFFER_LEN, "Next", 5, "Next#"); - printf("|%.*s|%.*s|%.*s|%.*s|--------|\n", LOG_EVENT_LEN+2, DASHES, LOG_BUFFER_LEN+2, DASHES, LOG_SMALL_BUFFER_LEN+2, DASHES, 5+2, DASHES); - } - } +#if !SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +SIMDJSON_TARGET_REGION("sse4.2,pclmul,popcnt") +#endif - simdjson_unused static simdjson_inline void log_string(const char *message) { - if (LOG_ENABLED) { - printf("%s\n", message); - } - } +/* including simdjson/westmere/bitmanipulation.h: #include "simdjson/westmere/bitmanipulation.h" */ +/* begin file simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H - // Logs a single line from the stage 2 DOM parser - template - static simdjson_inline void log_line(S &structurals, const char *title_prefix, const char *title, const char *detail) { - if (LOG_ENABLED) { - printf("| %*s%s%-*s ", log_depth*2, "", title_prefix, LOG_EVENT_LEN - log_depth*2 - int(strlen(title_prefix)), title); - auto current_index = structurals.at_beginning() ? nullptr : structurals.next_structural-1; - auto next_index = structurals.next_structural; - auto current = current_index ? &structurals.buf[*current_index] : reinterpret_cast(" "); - auto next = &structurals.buf[*next_index]; - { - // Print the next N characters in the buffer. - printf("| "); - // Otherwise, print the characters starting from the buffer position. - // Print spaces for unprintable or newline characters. - for (int i=0;i(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} -} // namespace logger } // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/logger.h */ + +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file simdjson/westmere/bitmanipulation.h */ +/* including simdjson/westmere/bitmask.h: #include "simdjson/westmere/bitmask.h" */ +/* begin file simdjson/westmere/bitmask.h */ +#ifndef SIMDJSON_WESTMERE_BITMASK_H +#define SIMDJSON_WESTMERE_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace ppc64 { +namespace westmere { namespace { -namespace stage2 { -class json_iterator { -public: - const uint8_t* const buf; - uint32_t *next_structural; - dom_parser_implementation &dom_parser; - uint32_t depth{0}; +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processing supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} - /** - * Walk the JSON document. - * - * The visitor receives callbacks when values are encountered. All callbacks pass the iterator as - * the first parameter; some callbacks have other parameters as well: - * - * - visit_document_start() - at the beginning. - * - visit_document_end() - at the end (if things were successful). - * - * - visit_array_start() - at the start `[` of a non-empty array. - * - visit_array_end() - at the end `]` of a non-empty array. - * - visit_empty_array() - when an empty array is encountered. - * - * - visit_object_end() - at the start `]` of a non-empty object. - * - visit_object_start() - at the end `]` of a non-empty object. - * - visit_empty_object() - when an empty object is encountered. - * - visit_key(const uint8_t *key) - when a key in an object field is encountered. key is - * guaranteed to point at the first quote of the string (`"key"`). - * - visit_primitive(const uint8_t *value) - when a value is a string, number, boolean or null. - * - visit_root_primitive(iter, uint8_t *value) - when the top-level value is a string, number, boolean or null. - * - * - increment_count(iter) - each time a value is found in an array or object. - */ - template - simdjson_warn_unused simdjson_inline error_code walk_document(V &visitor) noexcept; +} // unnamed namespace +} // namespace westmere +} // namespace simdjson - /** - * Create an iterator capable of walking a JSON document. - * - * The document must have already passed through stage 1. - */ - simdjson_inline json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index); +#endif // SIMDJSON_WESTMERE_BITMASK_H +/* end file simdjson/westmere/bitmask.h */ +/* including simdjson/westmere/numberparsing_defs.h: #include "simdjson/westmere/numberparsing_defs.h" */ +/* begin file simdjson/westmere/numberparsing_defs.h */ +#ifndef SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H +#define SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H - /** - * Look at the next token. - * - * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). - * - * They may include invalid JSON as well (such as `1.2.3` or `ture`). - */ - simdjson_inline const uint8_t *peek() const noexcept; - /** - * Advance to the next token. - * - * Tokens can be strings, numbers, booleans, null, or operators (`[{]},:`)). - * - * They may include invalid JSON as well (such as `1.2.3` or `ture`). - */ - simdjson_inline const uint8_t *advance() noexcept; - /** - * Get the remaining length of the document, from the start of the current token. - */ - simdjson_inline size_t remaining_len() const noexcept; - /** - * Check if we are at the end of the document. - * - * If this is true, there are no more tokens. - */ - simdjson_inline bool at_eof() const noexcept; - /** - * Check if we are at the beginning of the document. - */ - simdjson_inline bool at_beginning() const noexcept; - simdjson_inline uint8_t last_structural() const noexcept; +/* including simdjson/westmere/base.h: #include "simdjson/westmere/base.h" */ +/* begin file simdjson/westmere/base.h */ +#ifndef SIMDJSON_WESTMERE_BASE_H +#define SIMDJSON_WESTMERE_BASE_H - /** - * Log that a value has been found. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_value(const char *type) const noexcept; - /** - * Log the start of a multipart value. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_start_value(const char *type) const noexcept; - /** - * Log the end of a multipart value. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_end_value(const char *type) const noexcept; - /** - * Log an error. - * - * Set LOG_ENABLED=true in logger.h to see logging. - */ - simdjson_inline void log_error(const char *error) const noexcept; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - template - simdjson_warn_unused simdjson_inline error_code visit_root_primitive(V &visitor, const uint8_t *value) noexcept; - template - simdjson_warn_unused simdjson_inline error_code visit_primitive(V &visitor, const uint8_t *value) noexcept; -}; +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +/** + * Implementation for Westmere (Intel SSE4.2). + */ +namespace westmere { -template -simdjson_warn_unused simdjson_inline error_code json_iterator::walk_document(V &visitor) noexcept { - logger::log_start(); +class implementation; - // - // Start the document - // - if (at_eof()) { return EMPTY; } - log_start_value("document"); - SIMDJSON_TRY( visitor.visit_document_start(*this) ); +namespace { +namespace simd { - // - // Read first value - // - { - auto value = advance(); +template struct simd8; +template struct simd8x64; - // Make sure the outer object or array is closed before continuing; otherwise, there are ways we - // could get into memory corruption. See https://github.com/simdjson/simdjson/issues/906 - if (!STREAMING) { - switch (*value) { - case '{': if (last_structural() != '}') { log_value("starting brace unmatched"); return TAPE_ERROR; }; break; - case '[': if (last_structural() != ']') { log_value("starting bracket unmatched"); return TAPE_ERROR; }; break; - } +} // namespace simd +} // unnamed namespace + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BASE_H +/* end file simdjson/westmere/base.h */ +/* including simdjson/westmere/intrinsics.h: #include "simdjson/westmere/intrinsics.h" */ +/* begin file simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 +#endif + +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); + +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file simdjson/westmere/intrinsics.h */ + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace westmere +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H +/* end file simdjson/westmere/numberparsing_defs.h */ +/* including simdjson/westmere/simd.h: #include "simdjson/westmere/simd.h" */ +/* begin file simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { +namespace simd { + + template + struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); } + }; - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_root_primitive(*this, value) ); break; + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); } - } - goto document_end; -// -// Object parser states -// -object_begin: - log_start_value("object"); - depth++; - if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } - dom_parser.is_array[depth] = false; - SIMDJSON_TRY( visitor.visit_object_start(*this) ); + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} - { - auto key = advance(); - if (*key != '"') { log_error("Object does not start with a key"); return TAPE_ERROR; } - SIMDJSON_TRY( visitor.increment_count(*this) ); - SIMDJSON_TRY( visitor.visit_key(*this, key) ); - } + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } -object_field: - if (simdjson_unlikely( *advance() != ':' )) { log_error("Missing colon after key in object"); return TAPE_ERROR; } - { - auto value = advance(); - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); } - } -object_continue: - switch (*advance()) { - case ',': - SIMDJSON_TRY( visitor.increment_count(*this) ); - { - auto key = advance(); - if (simdjson_unlikely( *key != '"' )) { log_error("Key string missing at beginning of field in object"); return TAPE_ERROR; } - SIMDJSON_TRY( visitor.visit_key(*this, key) ); - } - goto object_field; - case '}': log_end_value("object"); SIMDJSON_TRY( visitor.visit_object_end(*this) ); goto scope_end; - default: log_error("No comma between object fields"); return TAPE_ERROR; - } + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } -scope_end: - depth--; - if (depth == 0) { goto document_end; } - if (dom_parser.is_array[depth]) { goto array_continue; } - goto object_continue; + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; -// -// Array parser states -// -array_begin: - log_start_value("array"); - depth++; - if (depth >= dom_parser.max_depth()) { log_error("Exceeded max depth!"); return DEPTH_ERROR; } - dom_parser.is_array[depth] = true; - SIMDJSON_TRY( visitor.visit_array_start(*this) ); - SIMDJSON_TRY( visitor.increment_count(*this) ); + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } -array_value: - { - auto value = advance(); - switch (*value) { - case '{': if (*peek() == '}') { advance(); log_value("empty object"); SIMDJSON_TRY( visitor.visit_empty_object(*this) ); break; } goto object_begin; - case '[': if (*peek() == ']') { advance(); log_value("empty array"); SIMDJSON_TRY( visitor.visit_empty_array(*this) ); break; } goto array_begin; - default: SIMDJSON_TRY( visitor.visit_primitive(*this, value) ); break; + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); } - } -array_continue: - switch (*advance()) { - case ',': SIMDJSON_TRY( visitor.increment_count(*this) ); goto array_value; - case ']': log_end_value("array"); SIMDJSON_TRY( visitor.visit_array_end(*this) ); goto scope_end; - default: log_error("Missing comma between array values"); return TAPE_ERROR; - } + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } -document_end: - log_end_value("document"); - SIMDJSON_TRY( visitor.visit_document_end(*this) ); + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } - dom_parser.next_structural_index = uint32_t(next_structural - &dom_parser.structural_indexes[0]); + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } - // If we didn't make it to the end, it's an error - if ( !STREAMING && dom_parser.next_structural_index != dom_parser.n_structural_indexes ) { - log_error("More than one JSON value at the root of the document, or extra characters at the end of the JSON!"); - return TAPE_ERROR; - } + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } - return SUCCESS; + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } -} // walk_document() + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 -simdjson_inline json_iterator::json_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) - : buf{_dom_parser.buf}, - next_structural{&_dom_parser.structural_indexes[start_structural_index]}, - dom_parser{_dom_parser} { -} +} // namespace simd +} // unnamed namespace +} // namespace westmere +} // namespace simdjson -simdjson_inline const uint8_t *json_iterator::peek() const noexcept { - return &buf[*(next_structural)]; -} -simdjson_inline const uint8_t *json_iterator::advance() noexcept { - return &buf[*(next_structural++)]; -} -simdjson_inline size_t json_iterator::remaining_len() const noexcept { - return dom_parser.len - *(next_structural-1); -} +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file simdjson/westmere/simd.h */ +/* including simdjson/westmere/stringparsing_defs.h: #include "simdjson/westmere/stringparsing_defs.h" */ +/* begin file simdjson/westmere/stringparsing_defs.h */ +#ifndef SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H +#define SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H -simdjson_inline bool json_iterator::at_eof() const noexcept { - return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; -} -simdjson_inline bool json_iterator::at_beginning() const noexcept { - return next_structural == dom_parser.structural_indexes.get(); -} -simdjson_inline uint8_t json_iterator::last_structural() const noexcept { - return buf[dom_parser.structural_indexes[dom_parser.n_structural_indexes - 1]]; -} +/* including simdjson/westmere/bitmanipulation.h: #include "simdjson/westmere/bitmanipulation.h" */ +/* begin file simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H -simdjson_inline void json_iterator::log_value(const char *type) const noexcept { - logger::log_line(*this, "", type, ""); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_inline void json_iterator::log_start_value(const char *type) const noexcept { - logger::log_line(*this, "+", type, ""); - if (logger::LOG_ENABLED) { logger::log_depth++; } -} +namespace simdjson { +namespace westmere { +namespace { -simdjson_inline void json_iterator::log_end_value(const char *type) const noexcept { - if (logger::LOG_ENABLED) { logger::log_depth--; } - logger::log_line(*this, "-", type, ""); +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO } -simdjson_inline void json_iterator::log_error(const char *error) const noexcept { - logger::log_line(*this, "", "ERROR", error); +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores } - -template -simdjson_warn_unused simdjson_inline error_code json_iterator::visit_root_primitive(V &visitor, const uint8_t *value) noexcept { - switch (*value) { - case '"': return visitor.visit_root_string(*this, value); - case 't': return visitor.visit_root_true_atom(*this, value); - case 'f': return visitor.visit_root_false_atom(*this, value); - case 'n': return visitor.visit_root_null_atom(*this, value); - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return visitor.visit_root_number(*this, value); - default: - log_error("Document starts with a non-value character"); - return TAPE_ERROR; - } +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); } -template -simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V &visitor, const uint8_t *value) noexcept { - switch (*value) { - case '"': return visitor.visit_string(*this, value); - case 't': return visitor.visit_true_atom(*this, value); - case 'f': return visitor.visit_false_atom(*this, value); - case 'n': return visitor.visit_null_atom(*this, value); - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return visitor.visit_number(*this, value); - default: - log_error("Non-value found when value was expected!"); - return TAPE_ERROR; - } +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif } -} // namespace stage2 } // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/tape_writer.h */ + +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file simdjson/westmere/bitmanipulation.h */ +/* including simdjson/westmere/simd.h: #include "simdjson/westmere/simd.h" */ +/* begin file simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace ppc64 { +namespace westmere { namespace { -namespace stage2 { +namespace simd { + + template + struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; -struct tape_writer { - /** The next place to write to tape */ - uint64_t *next_tape_loc; + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; - /** Write a signed 64-bit value to tape. */ - simdjson_inline void append_s64(int64_t value) noexcept; + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} - /** Write an unsigned 64-bit value to tape. */ - simdjson_inline void append_u64(uint64_t value) noexcept; + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } - /** Write a double value to tape. */ - simdjson_inline void append_double(double value) noexcept; + static const int SIZE = sizeof(base>::value); - /** - * Append a tape entry (an 8-bit type,and 56 bits worth of value). - */ - simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); + } + }; - /** - * Skip the current tape entry without writing. - * - * Used to skip the start of the container, since we'll come back later to fill it in when the - * container ends. - */ - simdjson_inline void skip() noexcept; + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } - /** - * Skip the number of tape entries necessary to write a large u64 or i64. - */ - simdjson_inline void skip_large_integer() noexcept; + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} - /** - * Skip the number of tape entries necessary to write a double. - */ - simdjson_inline void skip_double() noexcept; + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; - /** - * Write a value to a known location on tape. - * - * Used to go back and write out the start of a container after the container ends. - */ - simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; -private: - /** - * Append both the tape entry, and a supplementary value following it. Used for types that need - * all 64 bits, such as double and uint64_t. - */ template - simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; -}; // struct number_writer + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } -simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { - append2(0, value, internal::tape_type::INT64); -} + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } -simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { - append(0, internal::tape_type::UINT64); - *next_tape_loc = value; - next_tape_loc++; -} + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } -/** Write a double value to tape. */ -simdjson_inline void tape_writer::append_double(double value) noexcept { - append2(0, value, internal::tape_type::DOUBLE); -} + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } -simdjson_inline void tape_writer::skip() noexcept { - next_tape_loc++; -} + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } -simdjson_inline void tape_writer::skip_large_integer() noexcept { - next_tape_loc += 2; -} + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } -simdjson_inline void tape_writer::skip_double() noexcept { - next_tape_loc += 2; -} + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 -simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { - *next_tape_loc = val | ((uint64_t(char(t))) << 56); - next_tape_loc++; -} +} // namespace simd +} // unnamed namespace +} // namespace westmere +} // namespace simdjson -template -simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { - append(val, t); - static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); - memcpy(next_tape_loc, &val2, sizeof(val2)); - next_tape_loc++; -} +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file simdjson/westmere/simd.h */ -simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { - tape_loc = val | ((uint64_t(char(t))) << 56); +namespace simdjson { +namespace westmere { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + 16); + v0.store(dst); + v1.store(dst + 16); + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; } -} // namespace stage2 } // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/tape_writer.h */ + +#endif // SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H +/* end file simdjson/westmere/stringparsing_defs.h */ +/* end file simdjson/westmere/begin.h */ +/* including generic/amalgamated.h for westmere: #include */ +/* begin file generic/amalgamated.h for westmere */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_SRC_GENERIC_DEPENDENCIES_H) +#error generic/dependencies.h must be included before generic/amalgamated.h! +#endif + +/* including generic/base.h for westmere: #include */ +/* begin file generic/base.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace ppc64 { +namespace westmere { namespace { -namespace stage2 { -struct tape_builder { - template - simdjson_warn_unused static simdjson_inline error_code parse_document( - dom_parser_implementation &dom_parser, - dom::document &doc) noexcept; +struct json_character_block; + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_BASE_H +/* end file generic/base.h for westmere */ +/* including generic/dom_parser_implementation.h for westmere: #include */ +/* begin file generic/dom_parser_implementation.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - /** Called when a non-empty document starts. */ - simdjson_warn_unused simdjson_inline error_code visit_document_start(json_iterator &iter) noexcept; - /** Called when a non-empty document ends without error. */ - simdjson_warn_unused simdjson_inline error_code visit_document_end(json_iterator &iter) noexcept; +// Interface a dom parser implementation must fulfill +namespace simdjson { +namespace westmere { +namespace { - /** Called when a non-empty array starts. */ - simdjson_warn_unused simdjson_inline error_code visit_array_start(json_iterator &iter) noexcept; - /** Called when a non-empty array ends. */ - simdjson_warn_unused simdjson_inline error_code visit_array_end(json_iterator &iter) noexcept; - /** Called when an empty array is found. */ - simdjson_warn_unused simdjson_inline error_code visit_empty_array(json_iterator &iter) noexcept; +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3); +simdjson_inline bool is_ascii(const simd8x64& input); - /** Called when a non-empty object starts. */ - simdjson_warn_unused simdjson_inline error_code visit_object_start(json_iterator &iter) noexcept; - /** - * Called when a key in a field is encountered. - * - * primitive, visit_object_start, visit_empty_object, visit_array_start, or visit_empty_array - * will be called after this with the field value. - */ - simdjson_warn_unused simdjson_inline error_code visit_key(json_iterator &iter, const uint8_t *key) noexcept; - /** Called when a non-empty object ends. */ - simdjson_warn_unused simdjson_inline error_code visit_object_end(json_iterator &iter) noexcept; - /** Called when an empty object is found. */ - simdjson_warn_unused simdjson_inline error_code visit_empty_object(json_iterator &iter) noexcept; +} // unnamed namespace +} // namespace westmere +} // namespace simdjson - /** - * Called when a string, number, boolean or null is found. - */ - simdjson_warn_unused simdjson_inline error_code visit_primitive(json_iterator &iter, const uint8_t *value) noexcept; - /** - * Called when a string, number, boolean or null is found at the top level of a document (i.e. - * when there is no array or object and the entire document is a single string, number, boolean or - * null. - * - * This is separate from primitive() because simdjson's normal primitive parsing routines assume - * there is at least one more token after the value, which is only true in an array or object. - */ - simdjson_warn_unused simdjson_inline error_code visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept; +#endif // SIMDJSON_SRC_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file generic/dom_parser_implementation.h for westmere */ +/* including generic/json_character_block.h for westmere: #include */ +/* begin file generic/json_character_block.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H - simdjson_warn_unused simdjson_inline error_code visit_string(json_iterator &iter, const uint8_t *value, bool key = false) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_number(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - simdjson_warn_unused simdjson_inline error_code visit_root_string(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_number(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept; - simdjson_warn_unused simdjson_inline error_code visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept; +namespace simdjson { +namespace westmere { +namespace { - /** Called each time a new field or element in an array or object is found. */ - simdjson_warn_unused simdjson_inline error_code increment_count(json_iterator &iter) noexcept; +struct json_character_block { + static simdjson_inline json_character_block classify(const simd::simd8x64& in); - /** Next location to write to tape */ - tape_writer tape; -private: - /** Next write location in the string buf for stage 2 parsing */ - uint8_t *current_string_buf_loc; + simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } + simdjson_inline uint64_t op() const noexcept { return _op; } + simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } - simdjson_inline tape_builder(dom::document &doc) noexcept; + uint64_t _whitespace; + uint64_t _op; +}; - simdjson_inline uint32_t next_tape_index(json_iterator &iter) const noexcept; - simdjson_inline void start_container(json_iterator &iter) noexcept; - simdjson_warn_unused simdjson_inline error_code end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; - simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; - simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; - simdjson_inline void on_end_string(uint8_t *dst) noexcept; -}; // class tape_builder +} // unnamed namespace +} // namespace westmere +} // namespace simdjson -template -simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( - dom_parser_implementation &dom_parser, - dom::document &doc) noexcept { - dom_parser.doc = &doc; - json_iterator iter(dom_parser, STREAMING ? dom_parser.next_structural_index : 0); - tape_builder builder(doc); - return iter.walk_document(builder); -} +#endif // SIMDJSON_SRC_GENERIC_JSON_CHARACTER_BLOCK_H +/* end file generic/json_character_block.h for westmere */ +/* end file generic/amalgamated.h for westmere */ +/* including generic/stage1/amalgamated.h for westmere: #include */ +/* begin file generic/stage1/amalgamated.h for westmere */ +// Stuff other things depend on +/* including generic/stage1/base.h for westmere: #include */ +/* begin file generic/stage1/base.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_primitive(json_iterator &iter, const uint8_t *value) noexcept { - return iter.visit_root_primitive(*this, value); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_primitive(json_iterator &iter, const uint8_t *value) noexcept { - return iter.visit_primitive(*this, value); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_object(json_iterator &iter) noexcept { - return empty_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_empty_array(json_iterator &iter) noexcept { - return empty_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); -} +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_start(json_iterator &iter) noexcept { - start_container(iter); - return SUCCESS; -} +class bit_indexer; +template +struct buf_block_reader; +struct json_block; +class json_minifier; +class json_scanner; +struct json_string_block; +class json_string_scanner; +class json_structural_indexer; -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_object_end(json_iterator &iter) noexcept { - return end_container(iter, internal::tape_type::START_OBJECT, internal::tape_type::END_OBJECT); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_array_end(json_iterator &iter) noexcept { - return end_container(iter, internal::tape_type::START_ARRAY, internal::tape_type::END_ARRAY); -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_document_end(json_iterator &iter) noexcept { - constexpr uint32_t start_tape_index = 0; - tape.append(start_tape_index, internal::tape_type::ROOT); - tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter), internal::tape_type::ROOT); - return SUCCESS; -} -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_key(json_iterator &iter, const uint8_t *key) noexcept { - return visit_string(iter, key, true); -} +} // namespace stage1 -simdjson_warn_unused simdjson_inline error_code tape_builder::increment_count(json_iterator &iter) noexcept { - iter.dom_parser.open_containers[iter.depth].count++; // we have a key value pair in the object at parser.dom_parser.depth - 1 - return SUCCESS; -} +namespace utf8_validation { +struct utf8_checker; +} // namespace utf8_validation -simdjson_inline tape_builder::tape_builder(dom::document &doc) noexcept : tape{doc.tape.get()}, current_string_buf_loc{doc.string_buf.get()} {} +using utf8_validation::utf8_checker; -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_string(json_iterator &iter, const uint8_t *value, bool key) noexcept { - iter.log_value(key ? "key" : "string"); - uint8_t *dst = on_start_string(iter); - dst = stringparsing::parse_string(value+1, dst, false); // We do not allow replacement when the escape characters are invalid. - if (dst == nullptr) { - iter.log_error("Invalid escape in string"); - return STRING_ERROR; - } - on_end_string(dst); - return SUCCESS; -} +} // unnamed namespace +} // namespace westmere +} // namespace simdjson -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_string(json_iterator &iter, const uint8_t *value) noexcept { - return visit_string(iter, value); -} +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BASE_H +/* end file generic/stage1/base.h for westmere */ +/* including generic/stage1/buf_block_reader.h for westmere: #include */ +/* begin file generic/stage1/buf_block_reader.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_number(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("number"); - return numberparsing::parse_number(value, tape); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_number(json_iterator &iter, const uint8_t *value) noexcept { - // - // We need to make a copy to make sure that the string is space terminated. - // This is not about padding the input, which should already padded up - // to len + SIMDJSON_PADDING. However, we have no control at this stage - // on how the padding was done. What if the input string was padded with nulls? - // It is quite common for an input string to have an extra null character (C string). - // We do not want to allow 9\0 (where \0 is the null character) inside a JSON - // document, but the string "9\0" by itself is fine. So we make a copy and - // pad the input with spaces when we know that there is just one input element. - // This copy is relatively expensive, but it will almost never be called in - // practice unless you are in the strange scenario where you have many JSON - // documents made of single atoms. - // - std::unique_ptrcopy(new (std::nothrow) uint8_t[iter.remaining_len() + SIMDJSON_PADDING]); - if (copy.get() == nullptr) { return MEMALLOC; } - std::memcpy(copy.get(), value, iter.remaining_len()); - std::memset(copy.get() + iter.remaining_len(), ' ', SIMDJSON_PADDING); - error_code error = visit_number(iter, copy.get()); - return error; -} +#include -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_true_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("true"); - if (!atomparsing::is_valid_true_atom(value)) { return T_ATOM_ERROR; } - tape.append(0, internal::tape_type::TRUE_VALUE); - return SUCCESS; -} +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_true_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("true"); - if (!atomparsing::is_valid_true_atom(value, iter.remaining_len())) { return T_ATOM_ERROR; } - tape.append(0, internal::tape_type::TRUE_VALUE); - return SUCCESS; -} +// Walks through a buffer in block-sized increments, loading the last part with spaces +template +struct buf_block_reader { +public: + simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); + simdjson_inline size_t block_index(); + simdjson_inline bool has_full_block() const; + simdjson_inline const uint8_t *full_block() const; + /** + * Get the last block, padded with spaces. + * + * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this + * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there + * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. + * + * @return the number of effective characters in the last block. + */ + simdjson_inline size_t get_remainder(uint8_t *dst) const; + simdjson_inline void advance(); +private: + const uint8_t *buf; + const size_t len; + const size_t lenminusstep; + size_t idx; +}; -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_false_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("false"); - if (!atomparsing::is_valid_false_atom(value)) { return F_ATOM_ERROR; } - tape.append(0, internal::tape_type::FALSE_VALUE); - return SUCCESS; +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text_64(const uint8_t *text) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i); i++) { + buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); + } + buf[sizeof(simd8x64)] = '\0'; + return buf; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_false_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("false"); - if (!atomparsing::is_valid_false_atom(value, iter.remaining_len())) { return F_ATOM_ERROR; } - tape.append(0, internal::tape_type::FALSE_VALUE); - return SUCCESS; +// Routines to print masks and text for debugging bitmask operations +simdjson_unused static char * format_input_text(const simd8x64& in) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] < ' ') { buf[i] = '_'; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_null_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("null"); - if (!atomparsing::is_valid_null_atom(value)) { return N_ATOM_ERROR; } - tape.append(0, internal::tape_type::NULL_VALUE); - return SUCCESS; +simdjson_unused static char * format_input_text(const simd8x64& in, uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + in.store(reinterpret_cast(buf)); + for (size_t i=0; i); i++) { + if (buf[i] <= ' ') { buf[i] = '_'; } + if (!(mask & (size_t(1) << i))) { buf[i] = ' '; } + } + buf[sizeof(simd8x64)] = '\0'; + return buf; } -simdjson_warn_unused simdjson_inline error_code tape_builder::visit_root_null_atom(json_iterator &iter, const uint8_t *value) noexcept { - iter.log_value("null"); - if (!atomparsing::is_valid_null_atom(value, iter.remaining_len())) { return N_ATOM_ERROR; } - tape.append(0, internal::tape_type::NULL_VALUE); - return SUCCESS; +simdjson_unused static char * format_mask(uint64_t mask) { + static char buf[sizeof(simd8x64) + 1]; + for (size_t i=0; i<64; i++) { + buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; + } + buf[64] = '\0'; + return buf; } -// private: - -simdjson_inline uint32_t tape_builder::next_tape_index(json_iterator &iter) const noexcept { - return uint32_t(tape.next_tape_loc - iter.dom_parser.doc->tape.get()); -} +template +simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} -simdjson_warn_unused simdjson_inline error_code tape_builder::empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { - auto start_index = next_tape_index(iter); - tape.append(start_index+2, start); - tape.append(start_index, end); - return SUCCESS; -} +template +simdjson_inline size_t buf_block_reader::block_index() { return idx; } -simdjson_inline void tape_builder::start_container(json_iterator &iter) noexcept { - iter.dom_parser.open_containers[iter.depth].tape_index = next_tape_index(iter); - iter.dom_parser.open_containers[iter.depth].count = 0; - tape.skip(); // We don't actually *write* the start element until the end. +template +simdjson_inline bool buf_block_reader::has_full_block() const { + return idx < lenminusstep; } -simdjson_warn_unused simdjson_inline error_code tape_builder::end_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept { - // Write the ending tape element, pointing at the start location - const uint32_t start_tape_index = iter.dom_parser.open_containers[iter.depth].tape_index; - tape.append(start_tape_index, end); - // Write the start tape element, pointing at the end location (and including count) - // count can overflow if it exceeds 24 bits... so we saturate - // the convention being that a cnt of 0xffffff or more is undetermined in value (>= 0xffffff). - const uint32_t count = iter.dom_parser.open_containers[iter.depth].count; - const uint32_t cntsat = count > 0xFFFFFF ? 0xFFFFFF : count; - tape_writer::write(iter.dom_parser.doc->tape[start_tape_index], next_tape_index(iter) | (uint64_t(cntsat) << 32), start); - return SUCCESS; +template +simdjson_inline const uint8_t *buf_block_reader::full_block() const { + return &buf[idx]; } -simdjson_inline uint8_t *tape_builder::on_start_string(json_iterator &iter) noexcept { - // we advance the point, accounting for the fact that we have a NULL termination - tape.append(current_string_buf_loc - iter.dom_parser.doc->string_buf.get(), internal::tape_type::STRING); - return current_string_buf_loc + sizeof(uint32_t); +template +simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { + if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers + std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. + std::memcpy(dst, buf + idx, len - idx); + return len - idx; } -simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { - uint32_t str_length = uint32_t(dst - (current_string_buf_loc + sizeof(uint32_t))); - // TODO check for overflow in case someone has a crazy string (>=4GB?) - // But only add the overflow check when the document itself exceeds 4GB - // Currently unneeded because we refuse to parse docs larger or equal to 4GB. - memcpy(current_string_buf_loc, &str_length, sizeof(uint32_t)); - // NULL termination is still handy if you expect all your strings to - // be NULL terminated? It comes at a small cost - *dst = 0; - current_string_buf_loc = dst + 1; +template +simdjson_inline void buf_block_reader::advance() { + idx += STEP_SIZE; } -} // namespace stage2 +} // namespace stage1 } // unnamed namespace -} // namespace ppc64 +} // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/tape_builder.h */ -// -// Implementation-specific overrides -// +#endif // SIMDJSON_SRC_GENERIC_STAGE1_BUF_BLOCK_READER_H +/* end file generic/stage1/buf_block_reader.h for westmere */ +/* including generic/stage1/json_escape_scanner.h for westmere: #include */ +/* begin file generic/stage1/json_escape_scanner.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_ESCAPE_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace ppc64 { +namespace westmere { namespace { namespace stage1 { -simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { - // On PPC, we don't short-circuit this if there are no backslashes, because the branch gives us no - // benefit and therefore makes things worse. - // if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } - return find_escaped_branchless(backslash); -} - -} // namespace stage1 -} // unnamed namespace - -simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { - return ppc64::stage1::json_minifier::minify<64>(buf, len, dst, dst_len); -} - -simdjson_warn_unused error_code dom_parser_implementation::stage1(const uint8_t *_buf, size_t _len, stage1_mode streaming) noexcept { - this->buf = _buf; - this->len = _len; - return ppc64::stage1::json_structural_indexer::index<64>(buf, len, *this, streaming); -} +/** + * Scans for escape characters in JSON, taking care with multiple backslashes (\\n vs. \n). + */ +struct json_escape_scanner { + /** The actual escape characters (the backslashes themselves). */ + uint64_t next_is_escaped = 0ULL; -simdjson_warn_unused bool implementation::validate_utf8(const char *buf, size_t len) const noexcept { - return ppc64::stage1::generic_validate_utf8(buf,len); -} + struct escaped_and_escape { + /** + * Mask of escaped characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 0100100010100101000 + * n \ \ n \ \ + * ``` + */ + uint64_t escaped; + /** + * Mask of escape characters. + * + * ``` + * \n \\n \\\n \\\\n \ + * 1001000101001010001 + * \ \ \ \ \ \ \ + * ``` + */ + uint64_t escape; + }; -simdjson_warn_unused error_code dom_parser_implementation::stage2(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} + /** + * Get a mask of both escape and escaped characters (the characters following a backslash). + * + * @param potential_escape A mask of the character that can escape others (but could be + * escaped itself). e.g. block.eq('\\') + */ + simdjson_really_inline escaped_and_escape next(uint64_t backslash) noexcept { -simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::document &_doc) noexcept { - return stage2::tape_builder::parse_document(*this, _doc); -} +#if !SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT + if (!backslash) { return {next_escaped_without_backslashes(), 0}; } +#endif -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_string(const uint8_t *src, uint8_t *dst, bool replacement_char) const noexcept { - return ppc64::stringparsing::parse_string(src, dst, replacement_char); -} + // | | Mask (shows characters instead of 1's) | Depth | Instructions | + // |--------------------------------|----------------------------------------|-------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | | | + // | | ` even odd even odd odd` | | | + // | potential_escape | ` \ \\\ \\\ \\\\ \\\\ \\\` | 1 | 1 (backslash & ~first_is_escaped) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 5 | 5 (next_escape_and_terminal_code()) + // | escaped | `\ \ n \ n \ \ \ \ \ ` X | 6 | 7 (escape_and_terminal_code ^ (potential_escape | first_is_escaped)) + // | escape | ` \ \ \ \ \ \ \ \ \ \` | 6 | 8 (escape_and_terminal_code & backslash) + // | first_is_escaped | `\ ` | 7 (*) | 9 (escape >> 63) () + // (*) this is not needed until the next iteration + uint64_t escape_and_terminal_code = next_escape_and_terminal_code(backslash & ~this->next_is_escaped); + uint64_t escaped = escape_and_terminal_code ^ (backslash | this->next_is_escaped); + uint64_t escape = escape_and_terminal_code & backslash; + this->next_is_escaped = escape >> 63; + return {escaped, escape}; + } -simdjson_warn_unused uint8_t *dom_parser_implementation::parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept { - return ppc64::stringparsing::parse_wobbly_string(src, dst); -} +private: + static constexpr const uint64_t ODD_BITS = 0xAAAAAAAAAAAAAAAAULL; -simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept { - auto error = stage1(_buf, _len, stage1_mode::regular); - if (error) { return error; } - return stage2(_doc); -} + simdjson_really_inline uint64_t next_escaped_without_backslashes() noexcept { + uint64_t escaped = this->next_is_escaped; + this->next_is_escaped = 0; + return escaped; + } -} // namespace ppc64 -} // namespace simdjson + /** + * Returns a mask of the next escape characters (masking out escaped backslashes), along with + * any non-backslash escape codes. + * + * \n \\n \\\n \\\\n returns: + * \n \ \ \n \ \ + * 11 100 1011 10100 + * + * You are expected to mask out the first bit yourself if the previous block had a trailing + * escape. + * + * & the result with potential_escape to get just the escape characters. + * ^ the result with (potential_escape | first_is_escaped) to get escaped characters. + */ + static simdjson_really_inline uint64_t next_escape_and_terminal_code(uint64_t potential_escape) noexcept { + // If we were to just shift and mask out any odd bits, we'd actually get a *half* right answer: + // any even-aligned backslash runs would be correct! Odd-aligned backslash runs would be + // inverted (\\\ would be 010 instead of 101). + // + // ``` + // string: | ____\\\\_\\\\_____ | + // maybe_escaped | ODD | \ \ \ \ | + // even-aligned ^^^ ^^^^ odd-aligned + // ``` + // + // Taking that into account, our basic strategy is: + // + // 1. Use subtraction to produce a mask with 1's for even-aligned runs and 0's for + // odd-aligned runs. + // 2. XOR all odd bits, which masks out the odd bits in even-aligned runs, and brings IN the + // odd bits in odd-aligned runs. + // 3. & with backslash to clean up any stray bits. + // runs are set to 0, and then XORing with "odd": + // + // | | Mask (shows characters instead of 1's) | Instructions | + // |--------------------------------|----------------------------------------|---------------------| + // | string | `\\n_\\\n___\\\n___\\\\___\\\\__\\\` | + // | | ` even odd even odd odd` | + // | maybe_escaped | ` n \\n \\n \\\_ \\\_ \\` X | 1 (potential_escape << 1) + // | maybe_escaped_and_odd | ` \n_ \\n _ \\\n_ _ \\\__ _\\\_ \\\` | 1 (maybe_escaped | odd) + // | even_series_codes_and_odd | ` n_\\\ _ n_ _\\\\ _ _ ` | 1 (maybe_escaped_and_odd - potential_escape) + // | escape_and_terminal_code | ` \n \ \n \ \n \ \ \ \ \ \` | 1 (^ odd) + // -/* begin file include/simdjson/ppc64/end.h */ -/* end file include/simdjson/ppc64/end.h */ -/* end file src/ppc64/dom_parser_implementation.cpp */ -#endif -#if SIMDJSON_IMPLEMENTATION_WESTMERE -/* begin file src/westmere/implementation.cpp */ -/* begin file include/simdjson/westmere/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "westmere" -// #define SIMDJSON_IMPLEMENTATION westmere -SIMDJSON_TARGET_WESTMERE -/* end file include/simdjson/westmere/begin.h */ + // Escaped characters are characters following an escape. + uint64_t maybe_escaped = potential_escape << 1; -namespace simdjson { -namespace westmere { + // To distinguish odd from even escape sequences, therefore, we turn on any *starting* + // escapes that are on an odd byte. (We actually bring in all odd bits, for speed.) + // - Odd runs of backslashes are 0000, and the code at the end ("n" in \n or \\n) is 1. + // - Odd runs of backslashes are 1111, and the code at the end ("n" in \n or \\n) is 0. + // - All other odd bytes are 1, and even bytes are 0. + uint64_t maybe_escaped_and_odd_bits = maybe_escaped | ODD_BITS; + uint64_t even_series_codes_and_odd_bits = maybe_escaped_and_odd_bits - potential_escape; -simdjson_warn_unused error_code implementation::create_dom_parser_implementation( - size_t capacity, - size_t max_depth, - std::unique_ptr& dst -) const noexcept { - dst.reset( new (std::nothrow) dom_parser_implementation() ); - if (!dst) { return MEMALLOC; } - if (auto err = dst->set_capacity(capacity)) - return err; - if (auto err = dst->set_max_depth(max_depth)) - return err; - return SUCCESS; -} + // Now we flip all odd bytes back with xor. This: + // - Makes odd runs of backslashes go from 0000 to 1010 + // - Makes even runs of backslashes go from 1111 to 1010 + // - Sets actually-escaped codes to 1 (the n in \n and \\n: \n = 11, \\n = 100) + // - Resets all other bytes to 0 + return even_series_codes_and_odd_bits ^ ODD_BITS; + } +}; +} // namespace stage1 +} // unnamed namespace } // namespace westmere } // namespace simdjson -/* begin file include/simdjson/westmere/end.h */ -SIMDJSON_UNTARGET_WESTMERE -/* end file include/simdjson/westmere/end.h */ -/* end file src/westmere/implementation.cpp */ -/* begin file src/westmere/dom_parser_implementation.cpp */ -/* begin file include/simdjson/westmere/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "westmere" -// #define SIMDJSON_IMPLEMENTATION westmere -SIMDJSON_TARGET_WESTMERE -/* end file include/simdjson/westmere/begin.h */ +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_escape_scanner.h for westmere */ +/* including generic/stage1/json_string_scanner.h for westmere: #include */ +/* begin file generic/stage1/json_string_scanner.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H -// -// Stage 1 -// +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace westmere { namespace { +namespace stage1 { -using namespace simd; +struct json_string_block { + // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 + simdjson_really_inline json_string_block(uint64_t escaped, uint64_t quote, uint64_t in_string) : + _escaped(escaped), _quote(quote), _in_string(in_string) {} -struct json_character_block { - static simdjson_inline json_character_block classify(const simd::simd8x64& in); + // Escaped characters (characters following an escape() character) + simdjson_really_inline uint64_t escaped() const { return _escaped; } + // Real (non-backslashed) quotes + simdjson_really_inline uint64_t quote() const { return _quote; } + // Only characters inside the string (not including the quotes) + simdjson_really_inline uint64_t string_content() const { return _in_string & ~_quote; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_really_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } + // Return a mask of whether the given characters are inside a string (only works on non-quotes) + simdjson_really_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } + // Tail of string (everything except the start quote) + simdjson_really_inline uint64_t string_tail() const { return _in_string ^ _quote; } - simdjson_inline uint64_t whitespace() const noexcept { return _whitespace; } - simdjson_inline uint64_t op() const noexcept { return _op; } - simdjson_inline uint64_t scalar() const noexcept { return ~(op() | whitespace()); } + // escaped characters (backslashed--does not include the hex characters after \u) + uint64_t _escaped; + // real quotes (non-escaped ones) + uint64_t _quote; + // string characters (includes start quote but not end quote) + uint64_t _in_string; +}; - uint64_t _whitespace; - uint64_t _op; +// Scans blocks for string characters, storing the state necessary to do so +class json_string_scanner { +public: + simdjson_really_inline json_string_block next(const simd::simd8x64& in); + // Returns either UNCLOSED_STRING or SUCCESS + simdjson_really_inline error_code finish(); + +private: + // Scans for escape characters + json_escape_scanner escape_scanner{}; + // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). + uint64_t prev_in_string = 0ULL; }; -simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { - // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why - // we can't use the generic lookup_16. - auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); +// +// Return a mask of all string characters plus end quotes. +// +// prev_escaped is overflow saying whether the next character is escaped. +// prev_in_string is overflow saying whether we're still in a string. +// +// Backslash sequences outside of quotes will be detected in stage 2. +// +simdjson_really_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { + const uint64_t backslash = in.eq('\\'); + const uint64_t escaped = escape_scanner.next(backslash).escaped; + const uint64_t quote = in.eq('"') & ~escaped; - // The 6 operators (:,[]{}) have these values: - // - // , 2C - // : 3A - // [ 5B - // { 7B - // ] 5D - // } 7D - // - // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. - // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then - // match it (against | 0x20). // - // To prevent recognizing other characters, everything else gets compared with 0, which cannot - // match due to the | 0x20. + // prefix_xor flips on bits inside the string (and flips off the end quote). // - // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , - // and :. This gets caught in stage 2, which checks the actual character to ensure the right - // operators are in the right places. - const auto op_table = simd8::repeat_16( - 0, 0, 0, 0, - 0, 0, 0, 0, - 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B - ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D - ); - - // We compute whitespace and op separately. If the code later only use one or the - // other, given the fact that all functions are aggressively inlined, we can - // hope that useless computations will be omitted. This is namely case when - // minifying (we only need whitespace). - + // Then we xor with prev_in_string: if we were in a string already, its effect is flipped + // (characters inside strings are outside, and characters outside strings are inside). + // + const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; - const uint64_t whitespace = in.eq({ - _mm_shuffle_epi8(whitespace_table, in.chunks[0]), - _mm_shuffle_epi8(whitespace_table, in.chunks[1]), - _mm_shuffle_epi8(whitespace_table, in.chunks[2]), - _mm_shuffle_epi8(whitespace_table, in.chunks[3]) - }); - // Turn [ and ] into { and } - const simd8x64 curlified{ - in.chunks[0] | 0x20, - in.chunks[1] | 0x20, - in.chunks[2] | 0x20, - in.chunks[3] | 0x20 - }; - const uint64_t op = curlified.eq({ - _mm_shuffle_epi8(op_table, in.chunks[0]), - _mm_shuffle_epi8(op_table, in.chunks[1]), - _mm_shuffle_epi8(op_table, in.chunks[2]), - _mm_shuffle_epi8(op_table, in.chunks[3]) - }); - return { whitespace, op }; -} + // + // Check if we're still in a string at the end of the box so the next block will know + // + prev_in_string = uint64_t(static_cast(in_string) >> 63); -simdjson_inline bool is_ascii(const simd8x64& input) { - return input.reduce_or().is_ascii(); -} + // Use ^ to turn the beginning quote off, and the end quote on. -simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { - simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 - simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 - simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 - // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. - return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); + // We are returning a function-local object so either we get a move constructor + // or we get copy elision. + return json_string_block(escaped, quote, in_string); } -simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { - simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 - simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 - // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. - return simd8(is_third_byte | is_fourth_byte) > int8_t(0); +simdjson_really_inline error_code json_string_scanner::finish() { + if (prev_in_string) { + return UNCLOSED_STRING; + } + return SUCCESS; } +} // namespace stage1 } // unnamed namespace } // namespace westmere } // namespace simdjson -/* begin file src/generic/stage1/utf8_lookup4_algorithm.h */ +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRING_SCANNER_H +/* end file generic/stage1/json_string_scanner.h for westmere */ +/* including generic/stage1/utf8_lookup4_algorithm.h for westmere: #include */ +/* begin file generic/stage1/utf8_lookup4_algorithm.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { namespace westmere { namespace { @@ -14458,293 +41341,48 @@ using namespace simd; // you might think that a for-loop would work, but under Visual Studio, it is not good enough. static_assert((simd8x64::NUM_CHUNKS == 1) ||(simd8x64::NUM_CHUNKS == 2) - || (simd8x64::NUM_CHUNKS == 4), - "We support one, two or four chunks per 64-byte block."); - SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { - this->check_utf8_bytes(input.chunks[0], this->prev_input_block); - this->check_utf8_bytes(input.chunks[1], input.chunks[0]); - this->check_utf8_bytes(input.chunks[2], input.chunks[1]); - this->check_utf8_bytes(input.chunks[3], input.chunks[2]); - } - this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); - this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; - } - } - // do not forget to call check_eof! - simdjson_inline error_code errors() { - return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; - } - - }; // struct utf8_checker -} // namespace utf8_validation - -using utf8_validation::utf8_checker; - -} // unnamed namespace -} // namespace westmere -} // namespace simdjson -/* end file src/generic/stage1/utf8_lookup4_algorithm.h */ -/* begin file src/generic/stage1/json_structural_indexer.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) - -/* begin file src/generic/stage1/buf_block_reader.h */ -namespace simdjson { -namespace westmere { -namespace { - -// Walks through a buffer in block-sized increments, loading the last part with spaces -template -struct buf_block_reader { -public: - simdjson_inline buf_block_reader(const uint8_t *_buf, size_t _len); - simdjson_inline size_t block_index(); - simdjson_inline bool has_full_block() const; - simdjson_inline const uint8_t *full_block() const; - /** - * Get the last block, padded with spaces. - * - * There will always be a last block, with at least 1 byte, unless len == 0 (in which case this - * function fills the buffer with spaces and returns 0. In particular, if len == STEP_SIZE there - * will be 0 full_blocks and 1 remainder block with STEP_SIZE bytes and no spaces for padding. - * - * @return the number of effective characters in the last block. - */ - simdjson_inline size_t get_remainder(uint8_t *dst) const; - simdjson_inline void advance(); -private: - const uint8_t *buf; - const size_t len; - const size_t lenminusstep; - size_t idx; -}; - -// Routines to print masks and text for debugging bitmask operations -simdjson_unused static char * format_input_text_64(const uint8_t *text) { - static char buf[sizeof(simd8x64) + 1]; - for (size_t i=0; i); i++) { - buf[i] = int8_t(text[i]) < ' ' ? '_' : int8_t(text[i]); - } - buf[sizeof(simd8x64)] = '\0'; - return buf; -} - -// Routines to print masks and text for debugging bitmask operations -simdjson_unused static char * format_input_text(const simd8x64& in) { - static char buf[sizeof(simd8x64) + 1]; - in.store(reinterpret_cast(buf)); - for (size_t i=0; i); i++) { - if (buf[i] < ' ') { buf[i] = '_'; } - } - buf[sizeof(simd8x64)] = '\0'; - return buf; -} - -simdjson_unused static char * format_mask(uint64_t mask) { - static char buf[sizeof(simd8x64) + 1]; - for (size_t i=0; i<64; i++) { - buf[i] = (mask & (size_t(1) << i)) ? 'X' : ' '; - } - buf[64] = '\0'; - return buf; -} - -template -simdjson_inline buf_block_reader::buf_block_reader(const uint8_t *_buf, size_t _len) : buf{_buf}, len{_len}, lenminusstep{len < STEP_SIZE ? 0 : len - STEP_SIZE}, idx{0} {} - -template -simdjson_inline size_t buf_block_reader::block_index() { return idx; } - -template -simdjson_inline bool buf_block_reader::has_full_block() const { - return idx < lenminusstep; -} - -template -simdjson_inline const uint8_t *buf_block_reader::full_block() const { - return &buf[idx]; -} - -template -simdjson_inline size_t buf_block_reader::get_remainder(uint8_t *dst) const { - if(len == idx) { return 0; } // memcpy(dst, null, 0) will trigger an error with some sanitizers - std::memset(dst, 0x20, STEP_SIZE); // std::memset STEP_SIZE because it's more efficient to write out 8 or 16 bytes at once. - std::memcpy(dst, buf + idx, len - idx); - return len - idx; -} - -template -simdjson_inline void buf_block_reader::advance() { - idx += STEP_SIZE; -} - -} // unnamed namespace -} // namespace westmere -} // namespace simdjson -/* end file src/generic/stage1/buf_block_reader.h */ -/* begin file src/generic/stage1/json_string_scanner.h */ -namespace simdjson { -namespace westmere { -namespace { -namespace stage1 { - -struct json_string_block { - // We spell out the constructors in the hope of resolving inlining issues with Visual Studio 2017 - simdjson_inline json_string_block(uint64_t backslash, uint64_t escaped, uint64_t quote, uint64_t in_string) : - _backslash(backslash), _escaped(escaped), _quote(quote), _in_string(in_string) {} - - // Escaped characters (characters following an escape() character) - simdjson_inline uint64_t escaped() const { return _escaped; } - // Escape characters (backslashes that are not escaped--i.e. in \\, includes only the first \) - simdjson_inline uint64_t escape() const { return _backslash & ~_escaped; } - // Real (non-backslashed) quotes - simdjson_inline uint64_t quote() const { return _quote; } - // Start quotes of strings - simdjson_inline uint64_t string_start() const { return _quote & _in_string; } - // End quotes of strings - simdjson_inline uint64_t string_end() const { return _quote & ~_in_string; } - // Only characters inside the string (not including the quotes) - simdjson_inline uint64_t string_content() const { return _in_string & ~_quote; } - // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_inside_string(uint64_t mask) const { return mask & _in_string; } - // Return a mask of whether the given characters are inside a string (only works on non-quotes) - simdjson_inline uint64_t non_quote_outside_string(uint64_t mask) const { return mask & ~_in_string; } - // Tail of string (everything except the start quote) - simdjson_inline uint64_t string_tail() const { return _in_string ^ _quote; } - - // backslash characters - uint64_t _backslash; - // escaped characters (backslashed--does not include the hex characters after \u) - uint64_t _escaped; - // real quotes (non-backslashed ones) - uint64_t _quote; - // string characters (includes start quote but not end quote) - uint64_t _in_string; -}; - -// Scans blocks for string characters, storing the state necessary to do so -class json_string_scanner { -public: - simdjson_inline json_string_block next(const simd::simd8x64& in); - // Returns either UNCLOSED_STRING or SUCCESS - simdjson_inline error_code finish(); - -private: - // Intended to be defined by the implementation - simdjson_inline uint64_t find_escaped(uint64_t escape); - simdjson_inline uint64_t find_escaped_branchless(uint64_t escape); - - // Whether the last iteration was still inside a string (all 1's = true, all 0's = false). - uint64_t prev_in_string = 0ULL; - // Whether the first character of the next iteration is escaped. - uint64_t prev_escaped = 0ULL; -}; - -// -// Finds escaped characters (characters following \). -// -// Handles runs of backslashes like \\\" and \\\\" correctly (yielding 0101 and 01010, respectively). -// -// Does this by: -// - Shift the escape mask to get potentially escaped characters (characters after backslashes). -// - Mask escaped sequences that start on *even* bits with 1010101010 (odd bits are escaped, even bits are not) -// - Mask escaped sequences that start on *odd* bits with 0101010101 (even bits are escaped, odd bits are not) -// -// To distinguish between escaped sequences starting on even/odd bits, it finds the start of all -// escape sequences, filters out the ones that start on even bits, and adds that to the mask of -// escape sequences. This causes the addition to clear out the sequences starting on odd bits (since -// the start bit causes a carry), and leaves even-bit sequences alone. -// -// Example: -// -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// escape | xxx | xx xxx xxx xx xx | Removed overflow backslash; will | it into follows_escape -// odd_starts | x | x x x | escape & ~even_bits & ~follows_escape -// even_seq | c| cxxx c xx c | c = carry bit -- will be masked out later -// invert_mask | | cxxx c xx c| even_seq << 1 -// follows_escape | xx | x xx xxx xxx xx xx | Includes overflow bit -// escaped | x | x x x x x x x x | -// desired | x | x x x x x x x x | -// text | \\\ | \\\"\\\" \\\" \\"\\" | -// -simdjson_inline uint64_t json_string_scanner::find_escaped_branchless(uint64_t backslash) { - // If there was overflow, pretend the first character isn't a backslash - backslash &= ~prev_escaped; - uint64_t follows_escape = backslash << 1 | prev_escaped; - - // Get sequences starting on even bits by clearing out the odd series using + - const uint64_t even_bits = 0x5555555555555555ULL; - uint64_t odd_sequence_starts = backslash & ~even_bits & ~follows_escape; - uint64_t sequences_starting_on_even_bits; - prev_escaped = add_overflow(odd_sequence_starts, backslash, &sequences_starting_on_even_bits); - uint64_t invert_mask = sequences_starting_on_even_bits << 1; // The mask we want to return is the *escaped* bits, not escapes. - - // Mask every other backslashed character as an escaped character - // Flip the mask for sequences that start on even bits, to correct them - return (even_bits ^ invert_mask) & follows_escape; -} - -// -// Return a mask of all string characters plus end quotes. -// -// prev_escaped is overflow saying whether the next character is escaped. -// prev_in_string is overflow saying whether we're still in a string. -// -// Backslash sequences outside of quotes will be detected in stage 2. -// -simdjson_inline json_string_block json_string_scanner::next(const simd::simd8x64& in) { - const uint64_t backslash = in.eq('\\'); - const uint64_t escaped = find_escaped(backslash); - const uint64_t quote = in.eq('"') & ~escaped; - - // - // prefix_xor flips on bits inside the string (and flips off the end quote). - // - // Then we xor with prev_in_string: if we were in a string already, its effect is flipped - // (characters inside strings are outside, and characters outside strings are inside). - // - const uint64_t in_string = prefix_xor(quote) ^ prev_in_string; - - // - // Check if we're still in a string at the end of the box so the next block will know - // - // right shift of a signed value expected to be well-defined and standard - // compliant as of C++20, John Regher from Utah U. says this is fine code - // - prev_in_string = uint64_t(static_cast(in_string) >> 63); - - // Use ^ to turn the beginning quote off, and the end quote on. - - // We are returning a function-local object so either we get a move constructor - // or we get copy elision. - return json_string_block( - backslash, - escaped, - quote, - in_string - ); -} + || (simd8x64::NUM_CHUNKS == 4), + "We support one, two or four chunks per 64-byte block."); + SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 1) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 2) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + } else SIMDJSON_IF_CONSTEXPR (simd8x64::NUM_CHUNKS == 4) { + this->check_utf8_bytes(input.chunks[0], this->prev_input_block); + this->check_utf8_bytes(input.chunks[1], input.chunks[0]); + this->check_utf8_bytes(input.chunks[2], input.chunks[1]); + this->check_utf8_bytes(input.chunks[3], input.chunks[2]); + } + this->prev_incomplete = is_incomplete(input.chunks[simd8x64::NUM_CHUNKS-1]); + this->prev_input_block = input.chunks[simd8x64::NUM_CHUNKS-1]; + } + } + // do not forget to call check_eof! + simdjson_inline error_code errors() { + return this->error.any_bits_set_anywhere() ? error_code::UTF8_ERROR : error_code::SUCCESS; + } -simdjson_inline error_code json_string_scanner::finish() { - if (prev_in_string) { - return UNCLOSED_STRING; - } - return SUCCESS; -} + }; // struct utf8_checker +} // namespace utf8_validation -} // namespace stage1 } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/json_string_scanner.h */ -/* begin file src/generic/stage1/json_scanner.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_LOOKUP4_ALGORITHM_H +/* end file generic/stage1/utf8_lookup4_algorithm.h for westmere */ +/* including generic/stage1/json_scanner.h for westmere: #include */ +/* begin file generic/stage1/json_scanner.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { namespace westmere { namespace { @@ -14902,106 +41540,25 @@ simdjson_inline error_code json_scanner::finish() { } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/json_scanner.h */ -/* begin file src/generic/stage1/json_minifier.h */ -// This file contains the common code every implementation uses in stage1 -// It is intended to be included multiple times and compiled multiple times -// We assume the file in which it is included already includes -// "simdjson/stage1.h" (this simplifies amalgation) - -namespace simdjson { -namespace westmere { -namespace { -namespace stage1 { - -class json_minifier { -public: - template - static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; - -private: - simdjson_inline json_minifier(uint8_t *_dst) - : dst{_dst} - {} - template - simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; - simdjson_inline void next(const simd::simd8x64& in, const json_block& block); - simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); - json_scanner scanner{}; - uint8_t *dst; -}; - -simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { - uint64_t mask = block.whitespace(); - dst += in.compress(mask, dst); -} - -simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { - error_code error = scanner.finish(); - if (error) { dst_len = 0; return error; } - dst_len = dst - dst_start; - return SUCCESS; -} - -template<> -simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - simd::simd8x64 in_2(block_buf+64); - json_block block_1 = scanner.next(in_1); - json_block block_2 = scanner.next(in_2); - this->next(in_1, block_1); - this->next(in_2, block_2); - reader.advance(); -} - -template<> -simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { - simd::simd8x64 in_1(block_buf); - json_block block_1 = scanner.next(in_1); - this->next(block_buf, block_1); - reader.advance(); -} -template -error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { - buf_block_reader reader(buf, len); - json_minifier minifier(dst); +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_SCANNER_H +/* end file generic/stage1/json_scanner.h for westmere */ - // Index the first n-1 blocks - while (reader.has_full_block()) { - minifier.step(reader.full_block(), reader); - } +// All other declarations +/* including generic/stage1/find_next_document_index.h for westmere: #include */ +/* begin file generic/stage1/find_next_document_index.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H - // Index the last (remainder) block, padded with spaces - uint8_t block[STEP_SIZE]; - size_t remaining_bytes = reader.get_remainder(block); - if (remaining_bytes > 0) { - // We do not want to write directly to the output stream. Rather, we write - // to a local buffer (for safety). - uint8_t out_block[STEP_SIZE]; - uint8_t * const guarded_dst{minifier.dst}; - minifier.dst = out_block; - minifier.step(block, reader); - size_t to_write = minifier.dst - out_block; - // In some cases, we could be enticed to consider the padded spaces - // as part of the string. This is fine as long as we do not write more - // than we consumed. - if(to_write > remaining_bytes) { to_write = remaining_bytes; } - memcpy(guarded_dst, out_block, to_write); - minifier.dst = guarded_dst + to_write; - } - return minifier.finish(dst, dst_len); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -} // namespace stage1 -} // unnamed namespace -} // namespace westmere -} // namespace simdjson -/* end file src/generic/stage1/json_minifier.h */ -/* begin file src/generic/stage1/find_next_document_index.h */ namespace simdjson { namespace westmere { namespace { +namespace stage1 { /** * This algorithm is used to quickly identify the last structural position that @@ -15089,10 +41646,139 @@ simdjson_inline uint32_t find_next_document_index(dom_parser_implementation &par return 0; } +} // namespace stage1 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_FIND_NEXT_DOCUMENT_INDEX_H +/* end file generic/stage1/find_next_document_index.h for westmere */ +/* including generic/stage1/json_minifier.h for westmere: #include */ +/* begin file generic/stage1/json_minifier.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) + +namespace simdjson { +namespace westmere { +namespace { +namespace stage1 { + +class json_minifier { +public: + template + static error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept; + +private: + simdjson_inline json_minifier(uint8_t *_dst) + : dst{_dst} + {} + template + simdjson_inline void step(const uint8_t *block_buf, buf_block_reader &reader) noexcept; + simdjson_inline void next(const simd::simd8x64& in, const json_block& block); + simdjson_inline error_code finish(uint8_t *dst_start, size_t &dst_len); + json_scanner scanner{}; + uint8_t *dst; +}; + +simdjson_inline void json_minifier::next(const simd::simd8x64& in, const json_block& block) { + uint64_t mask = block.whitespace(); + dst += in.compress(mask, dst); +} + +simdjson_inline error_code json_minifier::finish(uint8_t *dst_start, size_t &dst_len) { + error_code error = scanner.finish(); + if (error) { dst_len = 0; return error; } + dst_len = dst - dst_start; + return SUCCESS; +} + +template<> +simdjson_inline void json_minifier::step<128>(const uint8_t *block_buf, buf_block_reader<128> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + simd::simd8x64 in_2(block_buf+64); + json_block block_1 = scanner.next(in_1); + json_block block_2 = scanner.next(in_2); + this->next(in_1, block_1); + this->next(in_2, block_2); + reader.advance(); +} + +template<> +simdjson_inline void json_minifier::step<64>(const uint8_t *block_buf, buf_block_reader<64> &reader) noexcept { + simd::simd8x64 in_1(block_buf); + json_block block_1 = scanner.next(in_1); + this->next(block_buf, block_1); + reader.advance(); +} + +template +error_code json_minifier::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) noexcept { + buf_block_reader reader(buf, len); + json_minifier minifier(dst); + + // Index the first n-1 blocks + while (reader.has_full_block()) { + minifier.step(reader.full_block(), reader); + } + + // Index the last (remainder) block, padded with spaces + uint8_t block[STEP_SIZE]; + size_t remaining_bytes = reader.get_remainder(block); + if (remaining_bytes > 0) { + // We do not want to write directly to the output stream. Rather, we write + // to a local buffer (for safety). + uint8_t out_block[STEP_SIZE]; + uint8_t * const guarded_dst{minifier.dst}; + minifier.dst = out_block; + minifier.step(block, reader); + size_t to_write = minifier.dst - out_block; + // In some cases, we could be enticed to consider the padded spaces + // as part of the string. This is fine as long as we do not write more + // than we consumed. + if(to_write > remaining_bytes) { to_write = remaining_bytes; } + memcpy(guarded_dst, out_block, to_write); + minifier.dst = guarded_dst + to_write; + } + return minifier.finish(dst, dst_len); +} + +} // namespace stage1 } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/find_next_document_index.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_MINIFIER_H +/* end file generic/stage1/json_minifier.h for westmere */ +/* including generic/stage1/json_structural_indexer.h for westmere: #include */ +/* begin file generic/stage1/json_structural_indexer.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses in stage1 +// It is intended to be included multiple times and compiled multiple times +// We assume the file in which it is included already includes +// "simdjson/stage1.h" (this simplifies amalgation) namespace simdjson { namespace westmere { @@ -15111,9 +41797,9 @@ class bit_indexer { // will potentially store extra values beyond end of valid bits, so base_ptr // needs to be large enough to handle this // - // If the kernel sets SIMDJSON_CUSTOM_BIT_INDEXER, then it will provide its own - // version of the code. -#ifdef SIMDJSON_CUSTOM_BIT_INDEXER + // If the kernel sets SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER, then it + // will provide its own version of the code. +#ifdef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER simdjson_inline void write(uint32_t idx, uint64_t bits); #else simdjson_inline void write(uint32_t idx, uint64_t bits) { @@ -15208,7 +41894,7 @@ class bit_indexer { this->tail += cnt; #endif } -#endif // SIMDJSON_CUSTOM_BIT_INDEXER +#endif // SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER }; @@ -15439,8 +42125,23 @@ simdjson_inline error_code json_structural_indexer::finish(dom_parser_implementa } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/json_structural_indexer.h */ -/* begin file src/generic/stage1/utf8_validator.h */ + +// Clear CUSTOM_BIT_INDEXER so other implementations can set it if they need to. +#undef SIMDJSON_GENERIC_JSON_STRUCTURAL_INDEXER_CUSTOM_BIT_INDEXER + +#endif // SIMDJSON_SRC_GENERIC_STAGE1_JSON_STRUCTURAL_INDEXER_H +/* end file generic/stage1/json_structural_indexer.h for westmere */ +/* including generic/stage1/utf8_validator.h for westmere: #include */ +/* begin file generic/stage1/utf8_validator.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { namespace westmere { namespace { @@ -15475,254 +42176,171 @@ bool generic_validate_utf8(const char * input, size_t length) { } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage1/utf8_validator.h */ -// -// Stage 2 -// -/* begin file src/generic/stage2/stringparsing.h */ -// This file contains the common code every implementation uses -// It is intended to be included multiple times and compiled multiple times +#endif // SIMDJSON_SRC_GENERIC_STAGE1_UTF8_VALIDATOR_H +/* end file generic/stage1/utf8_validator.h for westmere */ +/* end file generic/stage1/amalgamated.h for westmere */ +/* including generic/stage2/amalgamated.h for westmere: #include */ +/* begin file generic/stage2/amalgamated.h for westmere */ +// Stuff other things depend on +/* including generic/stage2/base.h for westmere: #include */ +/* begin file generic/stage2/base.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_BASE_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace westmere { namespace { -/// @private -namespace stringparsing { +namespace stage2 { -// begin copypasta -// These chars yield themselves: " \ / -// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab -// u not handled in this table as it's complex -static const uint8_t escape_map[256] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +class json_iterator; +class structural_iterator; +struct tape_builder; +struct tape_writer; + +} // namespace stage2 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_BASE_H +/* end file generic/stage2/base.h for westmere */ +/* including generic/stage2/tape_writer.h for westmere: #include */ +/* begin file generic/stage2/tape_writer.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace westmere { +namespace { +namespace stage2 { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. - 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. - 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. +struct tape_writer { + /** The next place to write to tape */ + uint64_t *next_tape_loc; - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + /** Write a signed 64-bit value to tape. */ + simdjson_inline void append_s64(int64_t value) noexcept; - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -}; + /** Write an unsigned 64-bit value to tape. */ + simdjson_inline void append_u64(uint64_t value) noexcept; -// handle a unicode codepoint -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, - uint8_t **dst_ptr, bool allow_replacement) { - // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) - constexpr uint32_t substitution_code_point = 0xfffd; - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; + /** Write a double value to tape. */ + simdjson_inline void append_double(double value) noexcept; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + /** + * Append a tape entry (an 8-bit type,and 56 bits worth of value). + */ + simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; - // We have already checked that the high surrogate is valid and - // (code_point - 0xd800) < 1024. - // - // Check that code_point_2 is in the range 0xdc00..0xdfff - // and that code_point_2 was parsed from valid hex. - uint32_t low_bit = code_point_2 - 0xdc00; - if (low_bit >> 10) { - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } else { - code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } + /** + * Skip the current tape entry without writing. + * + * Used to skip the start of the container, since we'll come back later to fill it in when the + * container ends. + */ + simdjson_inline void skip() noexcept; - } - } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { - // If we encounter a low surrogate (not preceded by a high surrogate) - // then we have an error. - if(!allow_replacement) { return false; } - code_point = substitution_code_point; - } - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; -} + /** + * Skip the number of tape entries necessary to write a large u64 or i64. + */ + simdjson_inline void skip_large_integer() noexcept; + /** + * Skip the number of tape entries necessary to write a double. + */ + simdjson_inline void skip_double() noexcept; -// handle a unicode codepoint using the wobbly convention -// https://simonsapin.github.io/wtf-8/ -// write appropriate values into dest -// src will advance 6 bytes or 12 bytes -// dest will advance a variable amount (return via pointer) -// return true if the unicode codepoint was valid -// We work in little-endian then swap at write time -simdjson_warn_unused -simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, - uint8_t **dst_ptr) { - // It is not ideal that this function is nearly identical to handle_unicode_codepoint. - // - // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the - // conversion isn't valid; we defer the check for this to inside the - // multilingual plane check - uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); - *src_ptr += 6; - // If we found a high surrogate, we must - // check for low surrogate for characters - // outside the Basic - // Multilingual Plane. - if (code_point >= 0xd800 && code_point < 0xdc00) { - const uint8_t *src_data = *src_ptr; - /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ - if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { - uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); - uint32_t low_bit = code_point_2 - 0xdc00; - if ((low_bit >> 10) == 0) { - code_point = - (((code_point - 0xd800) << 10) | low_bit) + 0x10000; - *src_ptr += 6; - } - } - } + /** + * Write a value to a known location on tape. + * + * Used to go back and write out the start of a container after the container ends. + */ + simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; - size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); - *dst_ptr += offset; - return offset > 0; -} +private: + /** + * Append both the tape entry, and a supplementary value following it. Used for types that need + * all 64 bits, such as double and uint64_t. + */ + template + simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; +}; // struct tape_writer +simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { + append2(0, value, internal::tape_type::INT64); +} -/** - * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There - * must be an unescaped quote terminating the string. It returns the final output - * position as pointer. In case of error (e.g., the string has bad escaped codes), - * then null_nullptrptr is returned. It is assumed that the output buffer is large - * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + - * SIMDJSON_PADDING bytes. - */ -simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { + append(0, internal::tape_type::UINT64); + *next_tape_loc = value; + next_tape_loc++; } -simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { - // It is not ideal that this function is nearly identical to parse_string. - while (1) { - // Copy the next n bytes, and find the backslash and quote in them. - auto bs_quote = backslash_and_quote::copy_and_find(src, dst); - // If the next thing is the end quote, copy and return - if (bs_quote.has_quote_first()) { - // we encountered quotes first. Move dst to point to quotes and exit - return dst + bs_quote.quote_index(); - } - if (bs_quote.has_backslash()) { - /* find out where the backspace is */ - auto bs_dist = bs_quote.backslash_index(); - uint8_t escape_char = src[bs_dist + 1]; - /* we encountered backslash first. Handle backslash */ - if (escape_char == 'u') { - /* move src/dst up to the start; they will be further adjusted - within the unicode codepoint handling code. */ - src += bs_dist; - dst += bs_dist; - if (!handle_unicode_codepoint_wobbly(&src, &dst)) { - return nullptr; - } - } else { - /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and - * write bs_dist+1 characters to output - * note this may reach beyond the part of the buffer we've actually - * seen. I think this is ok */ - uint8_t escape_result = escape_map[escape_char]; - if (escape_result == 0u) { - return nullptr; /* bogus escape value is an error */ - } - dst[bs_dist] = escape_result; - src += bs_dist + 2; - dst += bs_dist + 1; - } - } else { - /* they are the same. Since they can't co-occur, it means we - * encountered neither. */ - src += backslash_and_quote::BYTES_PROCESSED; - dst += backslash_and_quote::BYTES_PROCESSED; - } - } - /* can't be reached */ - return nullptr; +/** Write a double value to tape. */ +simdjson_inline void tape_writer::append_double(double value) noexcept { + append2(0, value, internal::tape_type::DOUBLE); +} + +simdjson_inline void tape_writer::skip() noexcept { + next_tape_loc++; } -} // namespace stringparsing +simdjson_inline void tape_writer::skip_large_integer() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::skip_double() noexcept { + next_tape_loc += 2; +} + +simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { + *next_tape_loc = val | ((uint64_t(char(t))) << 56); + next_tape_loc++; +} + +template +simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { + append(val, t); + static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); + memcpy(next_tape_loc, &val2, sizeof(val2)); + next_tape_loc++; +} + +simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { + tape_loc = val | ((uint64_t(char(t))) << 56); +} + +} // namespace stage2 } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/stringparsing.h */ -/* begin file src/generic/stage2/tape_builder.h */ -/* begin file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/logger.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_WRITER_H +/* end file generic/stage2/tape_writer.h for westmere */ +/* including generic/stage2/logger.h for westmere: #include */ +/* begin file generic/stage2/logger.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + + // This is for an internal-only stage 2 specific logger. // Set LOG_ENABLED = true to log what stage 2 is doing! namespace simdjson { @@ -15811,7 +42429,21 @@ namespace logger { } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/logger.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_LOGGER_H +/* end file generic/stage2/logger.h for westmere */ + +// All other declarations +/* including generic/stage2/json_iterator.h for westmere: #include */ +/* begin file generic/stage2/json_iterator.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace westmere { @@ -16124,118 +42756,347 @@ simdjson_warn_unused simdjson_inline error_code json_iterator::visit_primitive(V } } -} // namespace stage2 +} // namespace stage2 +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_JSON_ITERATOR_H +/* end file generic/stage2/json_iterator.h for westmere */ +/* including generic/stage2/stringparsing.h for westmere: #include */ +/* begin file generic/stage2/stringparsing.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This file contains the common code every implementation uses +// It is intended to be included multiple times and compiled multiple times + +namespace simdjson { +namespace westmere { +namespace { +/// @private +namespace stringparsing { + +// begin copypasta +// These chars yield themselves: " \ / +// b -> backspace, f -> formfeed, n -> newline, r -> cr, t -> horizontal tab +// u not handled in this table as it's complex +static const uint8_t escape_map[256] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x0. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0x22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2f, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x4. + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x5c, 0, 0, 0, // 0x5. + 0, 0, 0x08, 0, 0, 0, 0x0c, 0, 0, 0, 0, 0, 0, 0, 0x0a, 0, // 0x6. + 0, 0, 0x0d, 0, 0x09, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x7. + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; + +// handle a unicode codepoint +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint(const uint8_t **src_ptr, + uint8_t **dst_ptr, bool allow_replacement) { + // Use the default Unicode Character 'REPLACEMENT CHARACTER' (U+FFFD) + constexpr uint32_t substitution_code_point = 0xfffd; + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) != ((static_cast ('\\') << 8) | static_cast ('u'))) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + + // We have already checked that the high surrogate is valid and + // (code_point - 0xd800) < 1024. + // + // Check that code_point_2 is in the range 0xdc00..0xdfff + // and that code_point_2 was parsed from valid hex. + uint32_t low_bit = code_point_2 - 0xdc00; + if (low_bit >> 10) { + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } else { + code_point = (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + + } + } else if (code_point >= 0xdc00 && code_point <= 0xdfff) { + // If we encounter a low surrogate (not preceded by a high surrogate) + // then we have an error. + if(!allow_replacement) { return false; } + code_point = substitution_code_point; + } + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +// handle a unicode codepoint using the wobbly convention +// https://simonsapin.github.io/wtf-8/ +// write appropriate values into dest +// src will advance 6 bytes or 12 bytes +// dest will advance a variable amount (return via pointer) +// return true if the unicode codepoint was valid +// We work in little-endian then swap at write time +simdjson_warn_unused +simdjson_inline bool handle_unicode_codepoint_wobbly(const uint8_t **src_ptr, + uint8_t **dst_ptr) { + // It is not ideal that this function is nearly identical to handle_unicode_codepoint. + // + // jsoncharutils::hex_to_u32_nocheck fills high 16 bits of the return value with 1s if the + // conversion isn't valid; we defer the check for this to inside the + // multilingual plane check + uint32_t code_point = jsoncharutils::hex_to_u32_nocheck(*src_ptr + 2); + *src_ptr += 6; + // If we found a high surrogate, we must + // check for low surrogate for characters + // outside the Basic + // Multilingual Plane. + if (code_point >= 0xd800 && code_point < 0xdc00) { + const uint8_t *src_data = *src_ptr; + /* Compiler optimizations convert this to a single 16-bit load and compare on most platforms */ + if (((src_data[0] << 8) | src_data[1]) == ((static_cast ('\\') << 8) | static_cast ('u'))) { + uint32_t code_point_2 = jsoncharutils::hex_to_u32_nocheck(src_data + 2); + uint32_t low_bit = code_point_2 - 0xdc00; + if ((low_bit >> 10) == 0) { + code_point = + (((code_point - 0xd800) << 10) | low_bit) + 0x10000; + *src_ptr += 6; + } + } + } + + size_t offset = jsoncharutils::codepoint_to_utf8(code_point, *dst_ptr); + *dst_ptr += offset; + return offset > 0; +} + + +/** + * Unescape a valid UTF-8 string from src to dst, stopping at a final unescaped quote. There + * must be an unescaped quote terminating the string. It returns the final output + * position as pointer. In case of error (e.g., the string has bad escaped codes), + * then null_nullptrptr is returned. It is assumed that the output buffer is large + * enough. E.g., if src points at 'joe"', then dst needs to have four free bytes + + * SIMDJSON_PADDING bytes. + */ +simdjson_warn_unused simdjson_inline uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) { + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint(&src, &dst, allow_replacement)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +simdjson_warn_unused simdjson_inline uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) { + // It is not ideal that this function is nearly identical to parse_string. + while (1) { + // Copy the next n bytes, and find the backslash and quote in them. + auto bs_quote = backslash_and_quote::copy_and_find(src, dst); + // If the next thing is the end quote, copy and return + if (bs_quote.has_quote_first()) { + // we encountered quotes first. Move dst to point to quotes and exit + return dst + bs_quote.quote_index(); + } + if (bs_quote.has_backslash()) { + /* find out where the backspace is */ + auto bs_dist = bs_quote.backslash_index(); + uint8_t escape_char = src[bs_dist + 1]; + /* we encountered backslash first. Handle backslash */ + if (escape_char == 'u') { + /* move src/dst up to the start; they will be further adjusted + within the unicode codepoint handling code. */ + src += bs_dist; + dst += bs_dist; + if (!handle_unicode_codepoint_wobbly(&src, &dst)) { + return nullptr; + } + } else { + /* simple 1:1 conversion. Will eat bs_dist+2 characters in input and + * write bs_dist+1 characters to output + * note this may reach beyond the part of the buffer we've actually + * seen. I think this is ok */ + uint8_t escape_result = escape_map[escape_char]; + if (escape_result == 0u) { + return nullptr; /* bogus escape value is an error */ + } + dst[bs_dist] = escape_result; + src += bs_dist + 2; + dst += bs_dist + 1; + } + } else { + /* they are the same. Since they can't co-occur, it means we + * encountered neither. */ + src += backslash_and_quote::BYTES_PROCESSED; + dst += backslash_and_quote::BYTES_PROCESSED; + } + } + /* can't be reached */ + return nullptr; +} + +} // namespace stringparsing } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/json_iterator.h */ -/* begin file src/generic/stage2/tape_writer.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRINGPARSING_H +/* end file generic/stage2/stringparsing.h for westmere */ +/* including generic/stage2/structural_iterator.h for westmere: #include */ +/* begin file generic/stage2/structural_iterator.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { namespace westmere { namespace { namespace stage2 { -struct tape_writer { - /** The next place to write to tape */ - uint64_t *next_tape_loc; - - /** Write a signed 64-bit value to tape. */ - simdjson_inline void append_s64(int64_t value) noexcept; - - /** Write an unsigned 64-bit value to tape. */ - simdjson_inline void append_u64(uint64_t value) noexcept; - - /** Write a double value to tape. */ - simdjson_inline void append_double(double value) noexcept; - - /** - * Append a tape entry (an 8-bit type,and 56 bits worth of value). - */ - simdjson_inline void append(uint64_t val, internal::tape_type t) noexcept; - - /** - * Skip the current tape entry without writing. - * - * Used to skip the start of the container, since we'll come back later to fill it in when the - * container ends. - */ - simdjson_inline void skip() noexcept; - - /** - * Skip the number of tape entries necessary to write a large u64 or i64. - */ - simdjson_inline void skip_large_integer() noexcept; - - /** - * Skip the number of tape entries necessary to write a double. - */ - simdjson_inline void skip_double() noexcept; - - /** - * Write a value to a known location on tape. - * - * Used to go back and write out the start of a container after the container ends. - */ - simdjson_inline static void write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept; - -private: - /** - * Append both the tape entry, and a supplementary value following it. Used for types that need - * all 64 bits, such as double and uint64_t. - */ - template - simdjson_inline void append2(uint64_t val, T val2, internal::tape_type t) noexcept; -}; // struct number_writer - -simdjson_inline void tape_writer::append_s64(int64_t value) noexcept { - append2(0, value, internal::tape_type::INT64); -} - -simdjson_inline void tape_writer::append_u64(uint64_t value) noexcept { - append(0, internal::tape_type::UINT64); - *next_tape_loc = value; - next_tape_loc++; -} - -/** Write a double value to tape. */ -simdjson_inline void tape_writer::append_double(double value) noexcept { - append2(0, value, internal::tape_type::DOUBLE); -} - -simdjson_inline void tape_writer::skip() noexcept { - next_tape_loc++; -} - -simdjson_inline void tape_writer::skip_large_integer() noexcept { - next_tape_loc += 2; -} - -simdjson_inline void tape_writer::skip_double() noexcept { - next_tape_loc += 2; -} - -simdjson_inline void tape_writer::append(uint64_t val, internal::tape_type t) noexcept { - *next_tape_loc = val | ((uint64_t(char(t))) << 56); - next_tape_loc++; -} +class structural_iterator { +public: + const uint8_t* const buf; + uint32_t *next_structural; + dom_parser_implementation &dom_parser; -template -simdjson_inline void tape_writer::append2(uint64_t val, T val2, internal::tape_type t) noexcept { - append(val, t); - static_assert(sizeof(val2) == sizeof(*next_tape_loc), "Type is not 64 bits!"); - memcpy(next_tape_loc, &val2, sizeof(val2)); - next_tape_loc++; -} + // Start a structural + simdjson_inline structural_iterator(dom_parser_implementation &_dom_parser, size_t start_structural_index) + : buf{_dom_parser.buf}, + next_structural{&_dom_parser.structural_indexes[start_structural_index]}, + dom_parser{_dom_parser} { + } + // Get the buffer position of the current structural character + simdjson_inline const uint8_t* current() { + return &buf[*(next_structural-1)]; + } + // Get the current structural character + simdjson_inline char current_char() { + return buf[*(next_structural-1)]; + } + // Get the next structural character without advancing + simdjson_inline char peek_next_char() { + return buf[*next_structural]; + } + simdjson_inline const uint8_t* peek() { + return &buf[*next_structural]; + } + simdjson_inline const uint8_t* advance() { + return &buf[*(next_structural++)]; + } + simdjson_inline char advance_char() { + return buf[*(next_structural++)]; + } + simdjson_inline size_t remaining_len() { + return dom_parser.len - *(next_structural-1); + } -simdjson_inline void tape_writer::write(uint64_t &tape_loc, uint64_t val, internal::tape_type t) noexcept { - tape_loc = val | ((uint64_t(char(t))) << 56); -} + simdjson_inline bool at_end() { + return next_structural == &dom_parser.structural_indexes[dom_parser.n_structural_indexes]; + } + simdjson_inline bool at_beginning() { + return next_structural == dom_parser.structural_indexes.get(); + } +}; } // namespace stage2 } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/tape_writer.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_STRUCTURAL_ITERATOR_H +/* end file generic/stage2/structural_iterator.h for westmere */ +/* including generic/stage2/tape_builder.h for westmere: #include */ +/* begin file generic/stage2/tape_builder.h for westmere */ +#ifndef SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #include */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { namespace westmere { @@ -16317,7 +43178,7 @@ struct tape_builder { simdjson_warn_unused simdjson_inline error_code empty_container(json_iterator &iter, internal::tape_type start, internal::tape_type end) noexcept; simdjson_inline uint8_t *on_start_string(json_iterator &iter) noexcept; simdjson_inline void on_end_string(uint8_t *dst) noexcept; -}; // class tape_builder +}; // struct tape_builder template simdjson_warn_unused simdjson_inline error_code tape_builder::parse_document( @@ -16517,24 +43378,128 @@ simdjson_inline void tape_builder::on_end_string(uint8_t *dst) noexcept { } // unnamed namespace } // namespace westmere } // namespace simdjson -/* end file src/generic/stage2/tape_builder.h */ + +#endif // SIMDJSON_SRC_GENERIC_STAGE2_TAPE_BUILDER_H +/* end file generic/stage2/tape_builder.h for westmere */ +/* end file generic/stage2/amalgamated.h for westmere */ // -// Implementation-specific overrides +// Stage 1 // namespace simdjson { namespace westmere { + +simdjson_warn_unused error_code implementation::create_dom_parser_implementation( + size_t capacity, + size_t max_depth, + std::unique_ptr& dst +) const noexcept { + dst.reset( new (std::nothrow) dom_parser_implementation() ); + if (!dst) { return MEMALLOC; } + if (auto err = dst->set_capacity(capacity)) + return err; + if (auto err = dst->set_max_depth(max_depth)) + return err; + return SUCCESS; +} + namespace { -namespace stage1 { -simdjson_inline uint64_t json_string_scanner::find_escaped(uint64_t backslash) { - if (!backslash) { uint64_t escaped = prev_escaped; prev_escaped = 0; return escaped; } - return find_escaped_branchless(backslash); +using namespace simd; + +simdjson_inline json_character_block json_character_block::classify(const simd::simd8x64& in) { + // These lookups rely on the fact that anything < 127 will match the lower 4 bits, which is why + // we can't use the generic lookup_16. + auto whitespace_table = simd8::repeat_16(' ', 100, 100, 100, 17, 100, 113, 2, 100, '\t', '\n', 112, 100, '\r', 100, 100); + + // The 6 operators (:,[]{}) have these values: + // + // , 2C + // : 3A + // [ 5B + // { 7B + // ] 5D + // } 7D + // + // If you use | 0x20 to turn [ and ] into { and }, the lower 4 bits of each character is unique. + // We exploit this, using a simd 4-bit lookup to tell us which character match against, and then + // match it (against | 0x20). + // + // To prevent recognizing other characters, everything else gets compared with 0, which cannot + // match due to the | 0x20. + // + // NOTE: Due to the | 0x20, this ALSO treats and (control characters 0C and 1A) like , + // and :. This gets caught in stage 2, which checks the actual character to ensure the right + // operators are in the right places. + const auto op_table = simd8::repeat_16( + 0, 0, 0, 0, + 0, 0, 0, 0, + 0, 0, ':', '{', // : = 3A, [ = 5B, { = 7B + ',', '}', 0, 0 // , = 2C, ] = 5D, } = 7D + ); + + // We compute whitespace and op separately. If the code later only use one or the + // other, given the fact that all functions are aggressively inlined, we can + // hope that useless computations will be omitted. This is namely case when + // minifying (we only need whitespace). + + + const uint64_t whitespace = in.eq({ + _mm_shuffle_epi8(whitespace_table, in.chunks[0]), + _mm_shuffle_epi8(whitespace_table, in.chunks[1]), + _mm_shuffle_epi8(whitespace_table, in.chunks[2]), + _mm_shuffle_epi8(whitespace_table, in.chunks[3]) + }); + // Turn [ and ] into { and } + const simd8x64 curlified{ + in.chunks[0] | 0x20, + in.chunks[1] | 0x20, + in.chunks[2] | 0x20, + in.chunks[3] | 0x20 + }; + const uint64_t op = curlified.eq({ + _mm_shuffle_epi8(op_table, in.chunks[0]), + _mm_shuffle_epi8(op_table, in.chunks[1]), + _mm_shuffle_epi8(op_table, in.chunks[2]), + _mm_shuffle_epi8(op_table, in.chunks[3]) + }); + return { whitespace, op }; +} + +simdjson_inline bool is_ascii(const simd8x64& input) { + return input.reduce_or().is_ascii(); +} + +simdjson_unused simdjson_inline simd8 must_be_continuation(const simd8 prev1, const simd8 prev2, const simd8 prev3) { + simd8 is_second_byte = prev1.saturating_sub(0xc0u-1); // Only 11______ will be > 0 + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_second_byte | is_third_byte | is_fourth_byte) > int8_t(0); +} + +simdjson_inline simd8 must_be_2_3_continuation(const simd8 prev2, const simd8 prev3) { + simd8 is_third_byte = prev2.saturating_sub(0xe0u-1); // Only 111_____ will be > 0 + simd8 is_fourth_byte = prev3.saturating_sub(0xf0u-1); // Only 1111____ will be > 0 + // Caller requires a bool (all 1's). All values resulting from the subtraction will be <= 64, so signed comparison is fine. + return simd8(is_third_byte | is_fourth_byte) > int8_t(0); } -} // namespace stage1 } // unnamed namespace +} // namespace westmere +} // namespace simdjson + +// +// Stage 2 +// + +// +// Implementation-specific overrides +// + +namespace simdjson { +namespace westmere { simdjson_warn_unused error_code implementation::minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept { return westmere::stage1::json_minifier::minify<64>(buf, len, dst, dst_len); @@ -16575,11 +43540,27 @@ simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t * } // namespace westmere } // namespace simdjson -/* begin file include/simdjson/westmere/end.h */ -SIMDJSON_UNTARGET_WESTMERE -/* end file include/simdjson/westmere/end.h */ -/* end file src/westmere/dom_parser_implementation.cpp */ +/* including simdjson/westmere/end.h: #include */ +/* begin file simdjson/westmere/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +SIMDJSON_UNTARGET_REGION #endif -SIMDJSON_POP_DISABLE_WARNINGS -/* end file src/simdjson.cpp */ +/* undefining SIMDJSON_IMPLEMENTATION from "westmere" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/westmere/end.h */ + +#endif // SIMDJSON_SRC_WESTMERE_CPP +/* end file westmere.cpp */ +#endif + +/* undefining SIMDJSON_CONDITIONAL_INCLUDE */ +#undef SIMDJSON_CONDITIONAL_INCLUDE + +SIMDJSON_POP_DISABLE_UNUSED_WARNINGS + +/* end file simdjson.cpp */ diff --git a/contrib/simdjson/simdjson.h b/contrib/simdjson/simdjson.h index d57a890d176..bca2f42af18 100644 --- a/contrib/simdjson/simdjson.h +++ b/contrib/simdjson/simdjson.h @@ -1,5 +1,6 @@ -/* auto-generated on 2023-07-06 21:34:14 -0400. Do not edit! */ -/* begin file include/simdjson.h */ +/* auto-generated on 2023-08-02 16:00:45 -0400. Do not edit! */ +/* including simdjson.h: */ +/* begin file simdjson.h */ #ifndef SIMDJSON_H #define SIMDJSON_H @@ -36,43 +37,14 @@ } */ -/* begin file include/simdjson/simdjson_version.h */ -// /include/simdjson/simdjson_version.h automatically generated by release.py, -// do not change by hand -#ifndef SIMDJSON_SIMDJSON_VERSION_H -#define SIMDJSON_SIMDJSON_VERSION_H - -/** The version of simdjson being used (major.minor.revision) */ -#define SIMDJSON_VERSION "3.2.1" - -namespace simdjson { -enum { - /** - * The major version (MAJOR.minor.revision) of simdjson being used. - */ - SIMDJSON_VERSION_MAJOR = 3, - /** - * The minor version (major.MINOR.revision) of simdjson being used. - */ - SIMDJSON_VERSION_MINOR = 2, - /** - * The revision (major.minor.REVISION) of simdjson being used. - */ - SIMDJSON_VERSION_REVISION = 1 -}; -} // namespace simdjson - -#endif // SIMDJSON_SIMDJSON_VERSION_H -/* end file include/simdjson/simdjson_version.h */ -/* begin file include/simdjson/dom.h */ -#ifndef SIMDJSON_DOM_H -#define SIMDJSON_DOM_H - -/* begin file include/simdjson/base.h */ -#ifndef SIMDJSON_BASE_H -#define SIMDJSON_BASE_H +/* including simdjson/common_defs.h: #include "simdjson/common_defs.h" */ +/* begin file simdjson/common_defs.h */ +#ifndef SIMDJSON_COMMON_DEFS_H +#define SIMDJSON_COMMON_DEFS_H -/* begin file include/simdjson/compiler_check.h */ +#include +/* including simdjson/compiler_check.h: #include "simdjson/compiler_check.h" */ +/* begin file simdjson/compiler_check.h */ #ifndef SIMDJSON_COMPILER_CHECK_H #define SIMDJSON_COMPILER_CHECK_H @@ -108,13 +80,9 @@ enum { #endif #endif // SIMDJSON_COMPILER_CHECK_H -/* end file include/simdjson/compiler_check.h */ -/* begin file include/simdjson/common_defs.h */ -#ifndef SIMDJSON_COMMON_DEFS_H -#define SIMDJSON_COMMON_DEFS_H - -#include -/* begin file include/simdjson/portability.h */ +/* end file simdjson/compiler_check.h */ +/* including simdjson/portability.h: #include "simdjson/portability.h" */ +/* begin file simdjson/portability.h */ #ifndef SIMDJSON_PORTABILITY_H #define SIMDJSON_PORTABILITY_H @@ -160,8 +128,6 @@ enum { #else #define SIMDJSON_IS_32BITS 1 -// We do not support 32-bit platforms, but it can be -// handy to identify them. #if defined(_M_IX86) || defined(__i386__) #define SIMDJSON_IS_X86_32BITS 1 #elif defined(__arm__) || defined(_M_ARM) @@ -185,6 +151,12 @@ use a 64-bit target such as x64, 64-bit ARM or 64-bit PPC.") #endif // SIMDJSON_NO_PORTABILITY_WARNING #endif // SIMDJSON_IS_32BITS +#define SIMDJSON_CAT_IMPLEMENTATION_(a,...) a ## __VA_ARGS__ +#define SIMDJSON_CAT(a,...) SIMDJSON_CAT_IMPLEMENTATION_(a, __VA_ARGS__) + +#define SIMDJSON_STRINGIFY_IMPLEMENTATION_(a,...) #a SIMDJSON_STRINGIFY(__VA_ARGS__) +#define SIMDJSON_STRINGIFY(a,...) SIMDJSON_CAT_IMPLEMENTATION_(a, __VA_ARGS__) + // this is almost standard? #undef SIMDJSON_STRINGIFY_IMPLEMENTATION_ #undef SIMDJSON_STRINGIFY @@ -306,10 +278,9 @@ use a 64-bit target such as x64, 64-bit ARM or 64-bit PPC.") #endif #endif // SIMDJSON_PORTABILITY_H -/* end file include/simdjson/portability.h */ +/* end file simdjson/portability.h */ namespace simdjson { - namespace internal { /** * @private @@ -324,7 +295,6 @@ char *to_chars(char *first, const char *last, double value); */ double from_chars(const char *first) noexcept; double from_chars(const char *first, const char* end) noexcept; - } #ifndef SIMDJSON_EXCEPTIONS @@ -335,26 +305,6 @@ double from_chars(const char *first, const char* end) noexcept; #endif #endif -/** The maximum document size supported by simdjson. */ -constexpr size_t SIMDJSON_MAXSIZE_BYTES = 0xFFFFFFFF; - -/** - * The amount of padding needed in a buffer to parse JSON. - * - * The input buf should be readable up to buf + SIMDJSON_PADDING - * this is a stopgap; there should be a better description of the - * main loop and its behavior that abstracts over this - * See https://github.com/simdjson/simdjson/issues/174 - */ -constexpr size_t SIMDJSON_PADDING = 64; - -/** - * By default, simdjson supports this many nested objects and arrays. - * - * This is the default for parser::max_depth(). - */ -constexpr size_t DEFAULT_MAX_DEPTH = 1024; - } // namespace simdjson #if defined(__GNUC__) @@ -409,6 +359,9 @@ constexpr size_t DEFAULT_MAX_DEPTH = 1024; #define SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING #define SIMDJSON_POP_DISABLE_WARNINGS __pragma(warning( pop )) + #define SIMDJSON_PUSH_DISABLE_UNUSED_WARNINGS + #define SIMDJSON_POP_DISABLE_UNUSED_WARNINGS + #else // SIMDJSON_REGULAR_VISUAL_STUDIO #define simdjson_really_inline inline __attribute__((always_inline)) @@ -454,7 +407,8 @@ constexpr size_t DEFAULT_MAX_DEPTH = 1024; SIMDJSON_DISABLE_GCC_WARNING(-Wshadow) \ SIMDJSON_DISABLE_GCC_WARNING(-Wunused-parameter) \ SIMDJSON_DISABLE_GCC_WARNING(-Wunused-variable) \ - SIMDJSON_DISABLE_GCC_WARNING(-Wmaybe-uninitialized) + SIMDJSON_DISABLE_GCC_WARNING(-Wmaybe-uninitialized) \ + SIMDJSON_DISABLE_GCC_WARNING(-Wformat-security) #endif // __clang__ #define SIMDJSON_PRAGMA(P) _Pragma(#P) @@ -468,6 +422,10 @@ constexpr size_t DEFAULT_MAX_DEPTH = 1024; #define SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING SIMDJSON_DISABLE_GCC_WARNING(-Wstrict-overflow) #define SIMDJSON_POP_DISABLE_WARNINGS _Pragma("GCC diagnostic pop") + #define SIMDJSON_PUSH_DISABLE_UNUSED_WARNINGS SIMDJSON_PUSH_DISABLE_WARNINGS \ + SIMDJSON_DISABLE_GCC_WARNING(-Wunused) + #define SIMDJSON_POP_DISABLE_UNUSED_WARNINGS SIMDJSON_POP_DISABLE_WARNINGS + #endif // MSC_VER @@ -570,7 +528,8 @@ constexpr size_t DEFAULT_MAX_DEPTH = 1024; // #ifndef SIMDJSON_HAS_STRING_VIEW SIMDJSON_PUSH_DISABLE_ALL_WARNINGS -/* begin file include/simdjson/nonstd/string_view.hpp */ +/* including simdjson/nonstd/string_view.hpp: #include "simdjson/nonstd/string_view.hpp" */ +/* begin file simdjson/nonstd/string_view.hpp */ // Copyright 2017-2020 by Martin Moene // // string-view lite, a C++17-like string_view for C++98 and later. @@ -2255,7 +2214,7 @@ nssv_RESTORE_WARNINGS() #endif // nssv_HAVE_STD_STRING_VIEW #endif // NONSTD_SV_LITE_H_INCLUDED -/* end file include/simdjson/nonstd/string_view.hpp */ +/* end file simdjson/nonstd/string_view.hpp */ SIMDJSON_POP_DISABLE_WARNINGS namespace std { @@ -2311,7 +2270,6 @@ namespace std { # define simdjson_fallthrough do {} while (0) /* fallthrough */ #endif // simdjson_fallthrough - #if SIMDJSON_DEVELOPMENT_CHECKS #define SIMDJSON_DEVELOPMENT_ASSERT(expr) do { assert ((expr)); } while (0) #else @@ -2322,18 +2280,82 @@ namespace std { #define SIMDJSON_UTF8VALIDATION 1 #endif +#ifdef __has_include +// How do we detect that a compiler supports vbmi2? +// For sure if the following header is found, we are ok? +#if __has_include() +#define SIMDJSON_COMPILER_SUPPORTS_VBMI2 1 +#endif +#endif + +#ifdef _MSC_VER +#if _MSC_VER >= 1920 +// Visual Studio 2019 and up support VBMI2 under x64 even if the header +// avx512vbmi2intrin.h is not found. +#define SIMDJSON_COMPILER_SUPPORTS_VBMI2 1 +#endif +#endif + +// By default, we allow AVX512. +#ifndef SIMDJSON_AVX512_ALLOWED +#define SIMDJSON_AVX512_ALLOWED 1 +#endif + #endif // SIMDJSON_COMMON_DEFS_H -/* end file include/simdjson/common_defs.h */ +/* end file simdjson/common_defs.h */ -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_UNDESIRED_WARNINGS +// This provides the public API for simdjson. +// DOM and ondemand are amalgamated separately, in simdjson.h +/* including simdjson/simdjson_version.h: #include "simdjson/simdjson_version.h" */ +/* begin file simdjson/simdjson_version.h */ +// /include/simdjson/simdjson_version.h automatically generated by release.py, +// do not change by hand +#ifndef SIMDJSON_SIMDJSON_VERSION_H +#define SIMDJSON_SIMDJSON_VERSION_H + +/** The version of simdjson being used (major.minor.revision) */ +#define SIMDJSON_VERSION "3.2.2" + +namespace simdjson { +enum { + /** + * The major version (MAJOR.minor.revision) of simdjson being used. + */ + SIMDJSON_VERSION_MAJOR = 3, + /** + * The minor version (major.MINOR.revision) of simdjson being used. + */ + SIMDJSON_VERSION_MINOR = 2, + /** + * The revision (major.minor.REVISION) of simdjson being used. + */ + SIMDJSON_VERSION_REVISION = 2 +}; +} // namespace simdjson + +#endif // SIMDJSON_SIMDJSON_VERSION_H +/* end file simdjson/simdjson_version.h */ + +/* including simdjson/base.h: #include "simdjson/base.h" */ +/* begin file simdjson/base.h */ +/** + * @file Base declarations for all simdjson headers + * @private + */ +#ifndef SIMDJSON_BASE_H +#define SIMDJSON_BASE_H -// Public API -/* begin file include/simdjson/error.h */ +/* skipped duplicate #include "simdjson/common_defs.h" */ +/* skipped duplicate #include "simdjson/compiler_check.h" */ +/* including simdjson/error.h: #include "simdjson/error.h" */ +/* begin file simdjson/error.h */ #ifndef SIMDJSON_ERROR_H #define SIMDJSON_ERROR_H +/* skipped duplicate #include "simdjson/base.h" */ + #include +#include namespace simdjson { @@ -2637,295 +2659,298 @@ inline const std::string error_message(int error) noexcept; } // namespace simdjson #endif // SIMDJSON_ERROR_H -/* end file include/simdjson/error.h */ -/* begin file include/simdjson/minify.h */ -#ifndef SIMDJSON_MINIFY_H -#define SIMDJSON_MINIFY_H - -/* begin file include/simdjson/padded_string.h */ -#ifndef SIMDJSON_PADDED_STRING_H -#define SIMDJSON_PADDED_STRING_H - -#include -#include -#include -#include +/* end file simdjson/error.h */ +/* skipped duplicate #include "simdjson/portability.h" */ +/** + * @brief The top level simdjson namespace, containing everything the library provides. + */ namespace simdjson { -class padded_string_view; +SIMDJSON_PUSH_DISABLE_UNUSED_WARNINGS + +/** The maximum document size supported by simdjson. */ +constexpr size_t SIMDJSON_MAXSIZE_BYTES = 0xFFFFFFFF; /** - * String with extra allocation for ease of use with parser::parse() + * The amount of padding needed in a buffer to parse JSON. * - * This is a move-only class, it cannot be copied. + * The input buf should be readable up to buf + SIMDJSON_PADDING + * this is a stopgap; there should be a better description of the + * main loop and its behavior that abstracts over this + * See https://github.com/simdjson/simdjson/issues/174 */ -struct padded_string final { +constexpr size_t SIMDJSON_PADDING = 64; - /** - * Create a new, empty padded string. - */ - explicit inline padded_string() noexcept; - /** - * Create a new padded string buffer. - * - * @param length the size of the string. - */ - explicit inline padded_string(size_t length) noexcept; - /** - * Create a new padded string by copying the given input. - * - * @param data the buffer to copy - * @param length the number of bytes to copy - */ - explicit inline padded_string(const char *data, size_t length) noexcept; - /** - * Create a new padded string by copying the given input. - * - * @param str_ the string to copy - */ - inline padded_string(const std::string & str_ ) noexcept; - /** - * Create a new padded string by copying the given input. - * - * @param sv_ the string to copy - */ - inline padded_string(std::string_view sv_) noexcept; - /** - * Move one padded string into another. - * - * The original padded string will be reduced to zero capacity. - * - * @param o the string to move. - */ - inline padded_string(padded_string &&o) noexcept; - /** - * Move one padded string into another. - * - * The original padded string will be reduced to zero capacity. - * - * @param o the string to move. - */ - inline padded_string &operator=(padded_string &&o) noexcept; - inline void swap(padded_string &o) noexcept; - ~padded_string() noexcept; +/** + * By default, simdjson supports this many nested objects and arrays. + * + * This is the default for parser::max_depth(). + */ +constexpr size_t DEFAULT_MAX_DEPTH = 1024; - /** - * The length of the string. - * - * Does not include padding. - */ - size_t size() const noexcept; +SIMDJSON_POP_DISABLE_UNUSED_WARNINGS - /** - * The length of the string. - * - * Does not include padding. - */ - size_t length() const noexcept; +class implementation; +struct padded_string; +class padded_string_view; +enum class stage1_mode; - /** - * The string data. - **/ - const char *data() const noexcept; - const uint8_t *u8data() const noexcept { return static_cast(static_cast(data_ptr));} +namespace internal { - /** - * The string data. - **/ - char *data() noexcept; +template +class atomic_ptr; +class dom_parser_implementation; +class escape_json_string; +class tape_ref; +struct value128; +enum class tape_type; - /** - * Create a std::string_view with the same content. - */ - operator std::string_view() const; +} // namespace internal +} // namespace simdjson - /** - * Create a padded_string_view with the same content. - */ - operator padded_string_view() const noexcept; +#endif // SIMDJSON_BASE_H +/* end file simdjson/base.h */ - /** - * Load this padded string from a file. - * - * @return IO_ERROR on error. Be mindful that on some 32-bit systems, - * the file size might be limited to 2 GB. - * - * @param path the path to the file. - **/ - inline static simdjson_result load(std::string_view path) noexcept; +/* skipped duplicate #include "simdjson/error.h" */ +/* including simdjson/error-inl.h: #include "simdjson/error-inl.h" */ +/* begin file simdjson/error-inl.h */ +#ifndef SIMDJSON_ERROR_INL_H +#define SIMDJSON_ERROR_INL_H -private: - padded_string &operator=(const padded_string &o) = delete; - padded_string(const padded_string &o) = delete; +/* skipped duplicate #include "simdjson/error.h" */ - size_t viable_size{0}; - char *data_ptr{nullptr}; +#include -}; // padded_string +namespace simdjson { +namespace internal { + // We store the error code so we can validate the error message is associated with the right code + struct error_code_info { + error_code code; + const char* message; // do not use a fancy std::string where a simple C string will do (no alloc, no destructor) + }; + // These MUST match the codes in error_code. We check this constraint in basictests. + extern SIMDJSON_DLLIMPORTEXPORT const error_code_info error_codes[]; +} // namespace internal -/** - * Send padded_string instance to an output stream. - * - * @param out The output stream. - * @param s The padded_string instance. - * @throw if there is an error with the underlying output stream. simdjson itself will not throw. - */ -inline std::ostream& operator<<(std::ostream& out, const padded_string& s) { return out << s.data(); } -#if SIMDJSON_EXCEPTIONS -/** - * Send padded_string instance to an output stream. - * - * @param out The output stream. - * @param s The padded_string instance. - * @throw simdjson_error if the result being printed has an error. If there is an error with the - * underlying output stream, that error will be propagated (simdjson_error will not be - * thrown). - */ -inline std::ostream& operator<<(std::ostream& out, simdjson_result &s) noexcept(false) { return out << s.value(); } -#endif +inline const char *error_message(error_code error) noexcept { + // If you're using error_code, we're trusting you got it from the enum. + return internal::error_codes[int(error)].message; +} -} // namespace simdjson +// deprecated function +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +inline const std::string error_message(int error) noexcept { + if (error < 0 || error >= error_code::NUM_ERROR_CODES) { + return internal::error_codes[UNEXPECTED_ERROR].message; + } + return internal::error_codes[error].message; +} +#endif // SIMDJSON_DISABLE_DEPRECATED_API -// This is deliberately outside of simdjson so that people get it without having to use the namespace -inline simdjson::padded_string operator "" _padded(const char *str, size_t len) { - return simdjson::padded_string(str, len); +inline std::ostream& operator<<(std::ostream& out, error_code error) noexcept { + return out << error_message(error); } -namespace simdjson { namespace internal { -// The allocate_padded_buffer function is a low-level function to allocate memory -// with padding so we can read past the "length" bytes safely. It is used by -// the padded_string class automatically. It returns nullptr in case -// of error: the caller should check for a null pointer. -// The length parameter is the maximum size in bytes of the string. -// The caller is responsible to free the memory (e.g., delete[] (...)). -inline char *allocate_padded_buffer(size_t length) noexcept; +// +// internal::simdjson_result_base inline implementation +// -} // namespace internal -} // namespace simdjson +template +simdjson_inline void simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} -#endif // SIMDJSON_PADDED_STRING_H -/* end file include/simdjson/padded_string.h */ -#include -#include -#include +template +simdjson_warn_unused simdjson_inline error_code simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} -namespace simdjson { +template +simdjson_inline error_code simdjson_result_base::error() const noexcept { + return this->second; +} +#if SIMDJSON_EXCEPTIONS +template +simdjson_inline T& simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} -/** - * - * Minify the input string assuming that it represents a JSON string, does not parse or validate. - * This function is much faster than parsing a JSON string and then writing a minified version of it. - * However, it does not validate the input. It will merely return an error in simple cases (e.g., if - * there is a string that was never terminated). - * - * - * @param buf the json document to minify. - * @param len the length of the json document. - * @param dst the buffer to write the minified document to. *MUST* be allocated up to len bytes. - * @param dst_len the number of bytes written. Output only. - * @return the error code, or SUCCESS if there was no error. - */ -simdjson_warn_unused error_code minify(const char *buf, size_t len, char *dst, size_t &dst_len) noexcept; +template +simdjson_inline T&& simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} -} // namespace simdjson +template +simdjson_inline T&& simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} -#endif // SIMDJSON_MINIFY_H -/* end file include/simdjson/minify.h */ -/* begin file include/simdjson/padded_string_view.h */ -#ifndef SIMDJSON_PADDED_STRING_VIEW_H -#define SIMDJSON_PADDED_STRING_VIEW_H +template +simdjson_inline simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} +#endif // SIMDJSON_EXCEPTIONS -#include -#include -#include -#include +template +simdjson_inline const T& simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} -namespace simdjson { +template +simdjson_inline T&& simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} -/** - * User-provided string that promises it has extra padded bytes at the end for use with parser::parse(). - */ -class padded_string_view : public std::string_view { -private: - size_t _capacity; +template +simdjson_inline simdjson_result_base::simdjson_result_base(T &&value, error_code error) noexcept + : std::pair(std::forward(value), error) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base(error_code error) noexcept + : simdjson_result_base(T{}, error) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base(T &&value) noexcept + : simdjson_result_base(std::forward(value), SUCCESS) {} +template +simdjson_inline simdjson_result_base::simdjson_result_base() noexcept + : simdjson_result_base(T{}, UNINITIALIZED) {} -public: - /** Create an empty padded_string_view. */ - inline padded_string_view() noexcept = default; +} // namespace internal - /** - * Promise the given buffer has at least SIMDJSON_PADDING extra bytes allocated to it. - * - * @param s The string. - * @param len The length of the string (not including padding). - * @param capacity The allocated length of the string, including padding. - */ - explicit inline padded_string_view(const char* s, size_t len, size_t capacity) noexcept; - /** overload explicit inline padded_string_view(const char* s, size_t len) noexcept */ - explicit inline padded_string_view(const uint8_t* s, size_t len, size_t capacity) noexcept; +/// +/// simdjson_result inline implementation +/// - /** - * Promise the given string has at least SIMDJSON_PADDING extra bytes allocated to it. - * - * The capacity of the string will be used to determine its padding. - * - * @param s The string. - */ - explicit inline padded_string_view(const std::string &s) noexcept; +template +simdjson_inline void simdjson_result::tie(T &value, error_code &error) && noexcept { + std::forward>(*this).tie(value, error); +} - /** - * Promise the given string_view has at least SIMDJSON_PADDING extra bytes allocated to it. - * - * @param s The string. - * @param capacity The allocated length of the string, including padding. - */ - explicit inline padded_string_view(std::string_view s, size_t capacity) noexcept; +template +simdjson_warn_unused simdjson_inline error_code simdjson_result::get(T &value) && noexcept { + return std::forward>(*this).get(value); +} - /** The number of allocated bytes. */ - inline size_t capacity() const noexcept; +template +simdjson_inline error_code simdjson_result::error() const noexcept { + return internal::simdjson_result_base::error(); +} - /** The amount of padding on the string (capacity() - length()) */ - inline size_t padding() const noexcept; +#if SIMDJSON_EXCEPTIONS -}; // padded_string_view +template +simdjson_inline T& simdjson_result::value() & noexcept(false) { + return internal::simdjson_result_base::value(); +} -#if SIMDJSON_EXCEPTIONS -/** - * Send padded_string instance to an output stream. - * - * @param out The output stream. - * @param s The padded_string_view. - * @throw simdjson_error if the result being printed has an error. If there is an error with the - * underlying output stream, that error will be propagated (simdjson_error will not be - * thrown). - */ -inline std::ostream& operator<<(std::ostream& out, simdjson_result &s) noexcept(false) { return out << s.value(); } -#endif +template +simdjson_inline T&& simdjson_result::value() && noexcept(false) { + return std::forward>(*this).value(); +} + +template +simdjson_inline T&& simdjson_result::take_value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline simdjson_result::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& simdjson_result::value_unsafe() const& noexcept { + return internal::simdjson_result_base::value_unsafe(); +} + +template +simdjson_inline T&& simdjson_result::value_unsafe() && noexcept { + return std::forward>(*this).value_unsafe(); +} + +template +simdjson_inline simdjson_result::simdjson_result(T &&value, error_code error) noexcept + : internal::simdjson_result_base(std::forward(value), error) {} +template +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : internal::simdjson_result_base(error) {} +template +simdjson_inline simdjson_result::simdjson_result(T &&value) noexcept + : internal::simdjson_result_base(std::forward(value)) {} +template +simdjson_inline simdjson_result::simdjson_result() noexcept + : internal::simdjson_result_base() {} } // namespace simdjson -#endif // SIMDJSON_PADDED_STRING_VIEW_H -/* end file include/simdjson/padded_string_view.h */ -/* begin file include/simdjson/implementation.h */ +#endif // SIMDJSON_ERROR_INL_H +/* end file simdjson/error-inl.h */ +/* including simdjson/implementation.h: #include "simdjson/implementation.h" */ +/* begin file simdjson/implementation.h */ #ifndef SIMDJSON_IMPLEMENTATION_H #define SIMDJSON_IMPLEMENTATION_H -/* begin file include/simdjson/internal/dom_parser_implementation.h */ -#ifndef SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H -#define SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H +/* including simdjson/internal/atomic_ptr.h: #include "simdjson/internal/atomic_ptr.h" */ +/* begin file simdjson/internal/atomic_ptr.h */ +#ifndef SIMDJSON_INTERNAL_ATOMIC_PTR_H +#define SIMDJSON_INTERNAL_ATOMIC_PTR_H -#include +/* skipped duplicate #include "simdjson/base.h" */ +#include namespace simdjson { +namespace internal { -namespace dom { +template +class atomic_ptr { +public: + atomic_ptr(T *_ptr) : ptr{_ptr} {} + + operator const T*() const { return ptr.load(); } + const T& operator*() const { return *ptr; } + const T* operator->() const { return ptr.load(); } + + operator T*() { return ptr.load(); } + T& operator*() { return *ptr; } + T* operator->() { return ptr.load(); } + atomic_ptr& operator=(T *_ptr) { ptr = _ptr; return *this; } + +private: + std::atomic ptr; +}; + +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_ATOMIC_PTR_H +/* end file simdjson/internal/atomic_ptr.h */ +/* including simdjson/internal/dom_parser_implementation.h: #include "simdjson/internal/dom_parser_implementation.h" */ +/* begin file simdjson/internal/dom_parser_implementation.h */ +#ifndef SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H +#define SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H + +/* skipped duplicate #include "simdjson/base.h" */ +/* skipped duplicate #include "simdjson/error.h" */ +#include + +namespace simdjson { + +namespace dom { class document; } // namespace dom @@ -3168,264 +3193,9 @@ inline error_code dom_parser_implementation::allocate(size_t capacity, size_t ma } // namespace simdjson #endif // SIMDJSON_INTERNAL_DOM_PARSER_IMPLEMENTATION_H -/* end file include/simdjson/internal/dom_parser_implementation.h */ -/* begin file include/simdjson/internal/isadetection.h */ -/* From -https://github.com/endorno/pytorch/blob/master/torch/lib/TH/generic/simd/simd.h -Highly modified. - -Copyright (c) 2016- Facebook, Inc (Adam Paszke) -Copyright (c) 2014- Facebook, Inc (Soumith Chintala) -Copyright (c) 2011-2014 Idiap Research Institute (Ronan Collobert) -Copyright (c) 2012-2014 Deepmind Technologies (Koray Kavukcuoglu) -Copyright (c) 2011-2012 NEC Laboratories America (Koray Kavukcuoglu) -Copyright (c) 2011-2013 NYU (Clement Farabet) -Copyright (c) 2006-2010 NEC Laboratories America (Ronan Collobert, Leon Bottou, -Iain Melvin, Jason Weston) Copyright (c) 2006 Idiap Research Institute -(Samy Bengio) Copyright (c) 2001-2004 Idiap Research Institute (Ronan Collobert, -Samy Bengio, Johnny Mariethoz) - -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - -2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - -3. Neither the names of Facebook, Deepmind Technologies, NYU, NEC Laboratories -America and IDIAP Research Institute nor the names of its contributors may be - used to endorse or promote products derived from this software without - specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -POSSIBILITY OF SUCH DAMAGE. -*/ - -#ifndef SIMDJSON_INTERNAL_ISADETECTION_H -#define SIMDJSON_INTERNAL_ISADETECTION_H - -#include -#include -#if defined(_MSC_VER) -#include -#elif defined(HAVE_GCC_GET_CPUID) && defined(USE_GCC_GET_CPUID) -#include -#endif - -namespace simdjson { -namespace internal { - -enum instruction_set { - DEFAULT = 0x0, - NEON = 0x1, - AVX2 = 0x4, - SSE42 = 0x8, - PCLMULQDQ = 0x10, - BMI1 = 0x20, - BMI2 = 0x40, - ALTIVEC = 0x80, - AVX512F = 0x100, - AVX512DQ = 0x200, - AVX512IFMA = 0x400, - AVX512PF = 0x800, - AVX512ER = 0x1000, - AVX512CD = 0x2000, - AVX512BW = 0x4000, - AVX512VL = 0x8000, - AVX512VBMI2 = 0x10000 -}; - -#if defined(__PPC64__) - -static inline uint32_t detect_supported_architectures() { - return instruction_set::ALTIVEC; -} - -#elif defined(__aarch64__) || defined(_M_ARM64) - -static inline uint32_t detect_supported_architectures() { - return instruction_set::NEON; -} - -#elif defined(__x86_64__) || defined(_M_AMD64) // x64 - - -namespace { -// Can be found on Intel ISA Reference for CPUID -constexpr uint32_t cpuid_avx2_bit = 1 << 5; ///< @private Bit 5 of EBX for EAX=0x7 -constexpr uint32_t cpuid_bmi1_bit = 1 << 3; ///< @private bit 3 of EBX for EAX=0x7 -constexpr uint32_t cpuid_bmi2_bit = 1 << 8; ///< @private bit 8 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512f_bit = 1 << 16; ///< @private bit 16 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512dq_bit = 1 << 17; ///< @private bit 17 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512ifma_bit = 1 << 21; ///< @private bit 21 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512pf_bit = 1 << 26; ///< @private bit 26 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512er_bit = 1 << 27; ///< @private bit 27 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512cd_bit = 1 << 28; ///< @private bit 28 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512bw_bit = 1 << 30; ///< @private bit 30 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512vl_bit = 1U << 31; ///< @private bit 31 of EBX for EAX=0x7 -constexpr uint32_t cpuid_avx512vbmi2_bit = 1 << 6; ///< @private bit 6 of ECX for EAX=0x7 -constexpr uint64_t cpuid_avx256_saved = uint64_t(1) << 2; ///< @private bit 2 = AVX -constexpr uint64_t cpuid_avx512_saved = uint64_t(7) << 5; ///< @private bits 5,6,7 = opmask, ZMM_hi256, hi16_ZMM -constexpr uint32_t cpuid_sse42_bit = 1 << 20; ///< @private bit 20 of ECX for EAX=0x1 -constexpr uint32_t cpuid_osxsave = (uint32_t(1) << 26) | (uint32_t(1) << 27); ///< @private bits 26+27 of ECX for EAX=0x1 -constexpr uint32_t cpuid_pclmulqdq_bit = 1 << 1; ///< @private bit 1 of ECX for EAX=0x1 -} - - - -static inline void cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, - uint32_t *edx) { -#if defined(_MSC_VER) - int cpu_info[4]; - __cpuidex(cpu_info, *eax, *ecx); - *eax = cpu_info[0]; - *ebx = cpu_info[1]; - *ecx = cpu_info[2]; - *edx = cpu_info[3]; -#elif defined(HAVE_GCC_GET_CPUID) && defined(USE_GCC_GET_CPUID) - uint32_t level = *eax; - __get_cpuid(level, eax, ebx, ecx, edx); -#else - uint32_t a = *eax, b, c = *ecx, d; - asm volatile("cpuid\n\t" : "+a"(a), "=b"(b), "+c"(c), "=d"(d)); - *eax = a; - *ebx = b; - *ecx = c; - *edx = d; -#endif -} - - -static inline uint64_t xgetbv() { -#if defined(_MSC_VER) - return _xgetbv(0); -#else - uint32_t xcr0_lo, xcr0_hi; - asm volatile("xgetbv\n\t" : "=a" (xcr0_lo), "=d" (xcr0_hi) : "c" (0)); - return xcr0_lo | (uint64_t(xcr0_hi) << 32); -#endif -} - -static inline uint32_t detect_supported_architectures() { - uint32_t eax, ebx, ecx, edx; - uint32_t host_isa = 0x0; - - // EBX for EAX=0x1 - eax = 0x1; - ecx = 0x0; - cpuid(&eax, &ebx, &ecx, &edx); - - if (ecx & cpuid_sse42_bit) { - host_isa |= instruction_set::SSE42; - } else { - return host_isa; // everything after is redundant - } - - if (ecx & cpuid_pclmulqdq_bit) { - host_isa |= instruction_set::PCLMULQDQ; - } +/* end file simdjson/internal/dom_parser_implementation.h */ - - if ((ecx & cpuid_osxsave) != cpuid_osxsave) { - return host_isa; - } - - // xgetbv for checking if the OS saves registers - uint64_t xcr0 = xgetbv(); - - if ((xcr0 & cpuid_avx256_saved) == 0) { - return host_isa; - } - - // ECX for EAX=0x7 - eax = 0x7; - ecx = 0x0; - cpuid(&eax, &ebx, &ecx, &edx); - if (ebx & cpuid_avx2_bit) { - host_isa |= instruction_set::AVX2; - } - if (ebx & cpuid_bmi1_bit) { - host_isa |= instruction_set::BMI1; - } - - if (ebx & cpuid_bmi2_bit) { - host_isa |= instruction_set::BMI2; - } - - if (!((xcr0 & cpuid_avx512_saved) == cpuid_avx512_saved)) { - return host_isa; - } - - if (ebx & cpuid_avx512f_bit) { - host_isa |= instruction_set::AVX512F; - } - - if (ebx & cpuid_avx512dq_bit) { - host_isa |= instruction_set::AVX512DQ; - } - - if (ebx & cpuid_avx512ifma_bit) { - host_isa |= instruction_set::AVX512IFMA; - } - - if (ebx & cpuid_avx512pf_bit) { - host_isa |= instruction_set::AVX512PF; - } - - if (ebx & cpuid_avx512er_bit) { - host_isa |= instruction_set::AVX512ER; - } - - if (ebx & cpuid_avx512cd_bit) { - host_isa |= instruction_set::AVX512CD; - } - - if (ebx & cpuid_avx512bw_bit) { - host_isa |= instruction_set::AVX512BW; - } - - if (ebx & cpuid_avx512vl_bit) { - host_isa |= instruction_set::AVX512VL; - } - - if (ecx & cpuid_avx512vbmi2_bit) { - host_isa |= instruction_set::AVX512VBMI2; - } - - return host_isa; -} -#else // fallback - - -static inline uint32_t detect_supported_architectures() { - return instruction_set::DEFAULT; -} - - -#endif // end SIMD extension detection code - -} // namespace internal -} // namespace simdjson - -#endif // SIMDJSON_INTERNAL_ISADETECTION_H -/* end file include/simdjson/internal/isadetection.h */ -#include -#include -#include +#include namespace simdjson { @@ -3457,10 +3227,6 @@ simdjson_inline simdjson_warn_unused bool validate_utf8(const std::string& s) no return validate_utf8(s.data(), s.size()); } -namespace dom { - class document; -} // namespace dom - /** * An implementation of simdjson for a particular CPU architecture. * @@ -3635,24 +3401,6 @@ class available_implementation_list { const implementation *detect_best_supported() const noexcept; }; -template -class atomic_ptr { -public: - atomic_ptr(T *_ptr) : ptr{_ptr} {} - - operator const T*() const { return ptr.load(); } - const T& operator*() const { return *ptr; } - const T* operator->() const { return ptr.load(); } - - operator T*() { return ptr.load(); } - T& operator*() { return *ptr; } - T* operator->() { return ptr.load(); } - atomic_ptr& operator=(T *_ptr) { ptr = _ptr; return *this; } - -private: - std::atomic ptr; -}; - } // namespace internal /** @@ -3670,212 +3418,353 @@ extern SIMDJSON_DLLIMPORTEXPORT internal::atomic_ptr& get_ } // namespace simdjson #endif // SIMDJSON_IMPLEMENTATION_H -/* end file include/simdjson/implementation.h */ +/* end file simdjson/implementation.h */ +/* including simdjson/minify.h: #include "simdjson/minify.h" */ +/* begin file simdjson/minify.h */ +#ifndef SIMDJSON_MINIFY_H +#define SIMDJSON_MINIFY_H -// Inline functions -/* begin file include/simdjson/error-inl.h */ -#ifndef SIMDJSON_INLINE_ERROR_H -#define SIMDJSON_INLINE_ERROR_H +/* skipped duplicate #include "simdjson/base.h" */ +/* including simdjson/padded_string.h: #include "simdjson/padded_string.h" */ +/* begin file simdjson/padded_string.h */ +#ifndef SIMDJSON_PADDED_STRING_H +#define SIMDJSON_PADDED_STRING_H + +/* skipped duplicate #include "simdjson/base.h" */ +/* skipped duplicate #include "simdjson/error.h" */ + +/* skipped duplicate #include "simdjson/error-inl.h" */ #include +#include #include -#include +#include namespace simdjson { -namespace internal { - // We store the error code so we can validate the error message is associated with the right code - struct error_code_info { - error_code code; - const char* message; // do not use a fancy std::string where a simple C string will do (no alloc, no destructor) - }; - // These MUST match the codes in error_code. We check this constraint in basictests. - extern SIMDJSON_DLLIMPORTEXPORT const error_code_info error_codes[]; -} // namespace internal - - -inline const char *error_message(error_code error) noexcept { - // If you're using error_code, we're trusting you got it from the enum. - return internal::error_codes[int(error)].message; -} - -// deprecated function -#ifndef SIMDJSON_DISABLE_DEPRECATED_API -inline const std::string error_message(int error) noexcept { - if (error < 0 || error >= error_code::NUM_ERROR_CODES) { - return internal::error_codes[UNEXPECTED_ERROR].message; - } - return internal::error_codes[error].message; -} -#endif // SIMDJSON_DISABLE_DEPRECATED_API - -inline std::ostream& operator<<(std::ostream& out, error_code error) noexcept { - return out << error_message(error); -} - -namespace internal { - -// -// internal::simdjson_result_base inline implementation -// - -template -simdjson_inline void simdjson_result_base::tie(T &value, error_code &error) && noexcept { - error = this->second; - if (!error) { - value = std::forward>(*this).first; - } -} - -template -simdjson_warn_unused simdjson_inline error_code simdjson_result_base::get(T &value) && noexcept { - error_code error; - std::forward>(*this).tie(value, error); - return error; -} - -template -simdjson_inline error_code simdjson_result_base::error() const noexcept { - return this->second; -} -#if SIMDJSON_EXCEPTIONS +class padded_string_view; -template -simdjson_inline T& simdjson_result_base::value() & noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return this->first; -} +/** + * String with extra allocation for ease of use with parser::parse() + * + * This is a move-only class, it cannot be copied. + */ +struct padded_string final { -template -simdjson_inline T&& simdjson_result_base::value() && noexcept(false) { - return std::forward>(*this).take_value(); -} + /** + * Create a new, empty padded string. + */ + explicit inline padded_string() noexcept; + /** + * Create a new padded string buffer. + * + * @param length the size of the string. + */ + explicit inline padded_string(size_t length) noexcept; + /** + * Create a new padded string by copying the given input. + * + * @param data the buffer to copy + * @param length the number of bytes to copy + */ + explicit inline padded_string(const char *data, size_t length) noexcept; + /** + * Create a new padded string by copying the given input. + * + * @param str_ the string to copy + */ + inline padded_string(const std::string & str_ ) noexcept; + /** + * Create a new padded string by copying the given input. + * + * @param sv_ the string to copy + */ + inline padded_string(std::string_view sv_) noexcept; + /** + * Move one padded string into another. + * + * The original padded string will be reduced to zero capacity. + * + * @param o the string to move. + */ + inline padded_string(padded_string &&o) noexcept; + /** + * Move one padded string into another. + * + * The original padded string will be reduced to zero capacity. + * + * @param o the string to move. + */ + inline padded_string &operator=(padded_string &&o) noexcept; + inline void swap(padded_string &o) noexcept; + ~padded_string() noexcept; -template -simdjson_inline T&& simdjson_result_base::take_value() && noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return std::forward(this->first); -} + /** + * The length of the string. + * + * Does not include padding. + */ + size_t size() const noexcept; -template -simdjson_inline simdjson_result_base::operator T&&() && noexcept(false) { - return std::forward>(*this).take_value(); -} + /** + * The length of the string. + * + * Does not include padding. + */ + size_t length() const noexcept; -#endif // SIMDJSON_EXCEPTIONS + /** + * The string data. + **/ + const char *data() const noexcept; + const uint8_t *u8data() const noexcept { return static_cast(static_cast(data_ptr));} -template -simdjson_inline const T& simdjson_result_base::value_unsafe() const& noexcept { - return this->first; -} + /** + * The string data. + **/ + char *data() noexcept; -template -simdjson_inline T&& simdjson_result_base::value_unsafe() && noexcept { - return std::forward(this->first); -} + /** + * Create a std::string_view with the same content. + */ + operator std::string_view() const; -template -simdjson_inline simdjson_result_base::simdjson_result_base(T &&value, error_code error) noexcept - : std::pair(std::forward(value), error) {} -template -simdjson_inline simdjson_result_base::simdjson_result_base(error_code error) noexcept - : simdjson_result_base(T{}, error) {} -template -simdjson_inline simdjson_result_base::simdjson_result_base(T &&value) noexcept - : simdjson_result_base(std::forward(value), SUCCESS) {} -template -simdjson_inline simdjson_result_base::simdjson_result_base() noexcept - : simdjson_result_base(T{}, UNINITIALIZED) {} + /** + * Create a padded_string_view with the same content. + */ + operator padded_string_view() const noexcept; -} // namespace internal + /** + * Load this padded string from a file. + * + * @return IO_ERROR on error. Be mindful that on some 32-bit systems, + * the file size might be limited to 2 GB. + * + * @param path the path to the file. + **/ + inline static simdjson_result load(std::string_view path) noexcept; -/// -/// simdjson_result inline implementation -/// +private: + padded_string &operator=(const padded_string &o) = delete; + padded_string(const padded_string &o) = delete; -template -simdjson_inline void simdjson_result::tie(T &value, error_code &error) && noexcept { - std::forward>(*this).tie(value, error); -} + size_t viable_size{0}; + char *data_ptr{nullptr}; -template -simdjson_warn_unused simdjson_inline error_code simdjson_result::get(T &value) && noexcept { - return std::forward>(*this).get(value); -} +}; // padded_string -template -simdjson_inline error_code simdjson_result::error() const noexcept { - return internal::simdjson_result_base::error(); -} +/** + * Send padded_string instance to an output stream. + * + * @param out The output stream. + * @param s The padded_string instance. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, const padded_string& s) { return out << s.data(); } #if SIMDJSON_EXCEPTIONS +/** + * Send padded_string instance to an output stream. + * + * @param out The output stream. + * @param s The padded_string instance. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &s) noexcept(false) { return out << s.value(); } +#endif -template -simdjson_inline T& simdjson_result::value() & noexcept(false) { - return internal::simdjson_result_base::value(); -} +} // namespace simdjson -template -simdjson_inline T&& simdjson_result::value() && noexcept(false) { - return std::forward>(*this).value(); -} +// This is deliberately outside of simdjson so that people get it without having to use the namespace +inline simdjson::padded_string operator "" _padded(const char *str, size_t len); -template -simdjson_inline T&& simdjson_result::take_value() && noexcept(false) { - return std::forward>(*this).take_value(); -} +namespace simdjson { +namespace internal { -template -simdjson_inline simdjson_result::operator T&&() && noexcept(false) { - return std::forward>(*this).take_value(); -} +// The allocate_padded_buffer function is a low-level function to allocate memory +// with padding so we can read past the "length" bytes safely. It is used by +// the padded_string class automatically. It returns nullptr in case +// of error: the caller should check for a null pointer. +// The length parameter is the maximum size in bytes of the string. +// The caller is responsible to free the memory (e.g., delete[] (...)). +inline char *allocate_padded_buffer(size_t length) noexcept; -#endif // SIMDJSON_EXCEPTIONS +} // namespace internal +} // namespace simdjson -template -simdjson_inline const T& simdjson_result::value_unsafe() const& noexcept { - return internal::simdjson_result_base::value_unsafe(); -} +#endif // SIMDJSON_PADDED_STRING_H +/* end file simdjson/padded_string.h */ +#include +#include +#include -template -simdjson_inline T&& simdjson_result::value_unsafe() && noexcept { - return std::forward>(*this).value_unsafe(); -} +namespace simdjson { -template -simdjson_inline simdjson_result::simdjson_result(T &&value, error_code error) noexcept - : internal::simdjson_result_base(std::forward(value), error) {} -template -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : internal::simdjson_result_base(error) {} -template -simdjson_inline simdjson_result::simdjson_result(T &&value) noexcept - : internal::simdjson_result_base(std::forward(value)) {} -template -simdjson_inline simdjson_result::simdjson_result() noexcept - : internal::simdjson_result_base() {} +/** + * + * Minify the input string assuming that it represents a JSON string, does not parse or validate. + * This function is much faster than parsing a JSON string and then writing a minified version of it. + * However, it does not validate the input. It will merely return an error in simple cases (e.g., if + * there is a string that was never terminated). + * + * + * @param buf the json document to minify. + * @param len the length of the json document. + * @param dst the buffer to write the minified document to. *MUST* be allocated up to len bytes. + * @param dst_len the number of bytes written. Output only. + * @return the error code, or SUCCESS if there was no error. + */ +simdjson_warn_unused error_code minify(const char *buf, size_t len, char *dst, size_t &dst_len) noexcept; } // namespace simdjson -#endif // SIMDJSON_INLINE_ERROR_H -/* end file include/simdjson/error-inl.h */ -/* begin file include/simdjson/padded_string-inl.h */ -#ifndef SIMDJSON_INLINE_PADDED_STRING_H -#define SIMDJSON_INLINE_PADDED_STRING_H +#endif // SIMDJSON_MINIFY_H +/* end file simdjson/minify.h */ +/* skipped duplicate #include "simdjson/padded_string.h" */ +/* including simdjson/padded_string-inl.h: #include "simdjson/padded_string-inl.h" */ +/* begin file simdjson/padded_string-inl.h */ +#ifndef SIMDJSON_PADDED_STRING_INL_H +#define SIMDJSON_PADDED_STRING_INL_H + +/* skipped duplicate #include "simdjson/padded_string.h" */ +/* including simdjson/padded_string_view.h: #include "simdjson/padded_string_view.h" */ +/* begin file simdjson/padded_string_view.h */ +#ifndef SIMDJSON_PADDED_STRING_VIEW_H +#define SIMDJSON_PADDED_STRING_VIEW_H +/* skipped duplicate #include "simdjson/portability.h" */ +/* skipped duplicate #include "simdjson/base.h" // for SIMDJSON_PADDING */ +/* skipped duplicate #include "simdjson/error.h" */ -#include #include #include #include +#include namespace simdjson { -namespace internal { -// The allocate_padded_buffer function is a low-level function to allocate memory -// with padding so we can read past the "length" bytes safely. It is used by -// the padded_string class automatically. It returns nullptr in case -// of error: the caller should check for a null pointer. +/** + * User-provided string that promises it has extra padded bytes at the end for use with parser::parse(). + */ +class padded_string_view : public std::string_view { +private: + size_t _capacity; + +public: + /** Create an empty padded_string_view. */ + inline padded_string_view() noexcept = default; + + /** + * Promise the given buffer has at least SIMDJSON_PADDING extra bytes allocated to it. + * + * @param s The string. + * @param len The length of the string (not including padding). + * @param capacity The allocated length of the string, including padding. + */ + explicit inline padded_string_view(const char* s, size_t len, size_t capacity) noexcept; + /** overload explicit inline padded_string_view(const char* s, size_t len) noexcept */ + explicit inline padded_string_view(const uint8_t* s, size_t len, size_t capacity) noexcept; + + /** + * Promise the given string has at least SIMDJSON_PADDING extra bytes allocated to it. + * + * The capacity of the string will be used to determine its padding. + * + * @param s The string. + */ + explicit inline padded_string_view(const std::string &s) noexcept; + + /** + * Promise the given string_view has at least SIMDJSON_PADDING extra bytes allocated to it. + * + * @param s The string. + * @param capacity The allocated length of the string, including padding. + */ + explicit inline padded_string_view(std::string_view s, size_t capacity) noexcept; + + /** The number of allocated bytes. */ + inline size_t capacity() const noexcept; + + /** The amount of padding on the string (capacity() - length()) */ + inline size_t padding() const noexcept; + +}; // padded_string_view + +#if SIMDJSON_EXCEPTIONS +/** + * Send padded_string instance to an output stream. + * + * @param out The output stream. + * @param s The padded_string_view. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &s) noexcept(false); +#endif + +} // namespace simdjson + +#endif // SIMDJSON_PADDED_STRING_VIEW_H +/* end file simdjson/padded_string_view.h */ + +/* skipped duplicate #include "simdjson/error-inl.h" */ +/* including simdjson/padded_string_view-inl.h: #include "simdjson/padded_string_view-inl.h" */ +/* begin file simdjson/padded_string_view-inl.h */ +#ifndef SIMDJSON_PADDED_STRING_VIEW_INL_H +#define SIMDJSON_PADDED_STRING_VIEW_INL_H + +/* skipped duplicate #include "simdjson/padded_string_view.h" */ + +/* skipped duplicate #include "simdjson/error-inl.h" */ + +namespace simdjson { + +inline padded_string_view::padded_string_view(const char* s, size_t len, size_t capacity) noexcept + : std::string_view(s, len), _capacity(capacity) +{ +} + +inline padded_string_view::padded_string_view(const uint8_t* s, size_t len, size_t capacity) noexcept + : padded_string_view(reinterpret_cast(s), len, capacity) +{ +} + +inline padded_string_view::padded_string_view(const std::string &s) noexcept + : std::string_view(s), _capacity(s.capacity()) +{ +} + +inline padded_string_view::padded_string_view(std::string_view s, size_t capacity) noexcept + : std::string_view(s), _capacity(capacity) +{ +} + +inline size_t padded_string_view::capacity() const noexcept { return _capacity; } + +inline size_t padded_string_view::padding() const noexcept { return capacity() - length(); } + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson_result &s) noexcept(false) { return out << s.value(); } +#endif + +} // namespace simdjson + + +#endif // SIMDJSON_PADDED_STRING_VIEW_INL_H +/* end file simdjson/padded_string_view-inl.h */ + +#include + +namespace simdjson { +namespace internal { + +// The allocate_padded_buffer function is a low-level function to allocate memory +// with padding so we can read past the "length" bytes safely. It is used by +// the padded_string class automatically. It returns nullptr in case +// of error: the caller should check for a null pointer. // The length parameter is the maximum size in bytes of the string. // The caller is responsible to free the memory (e.g., delete[] (...)). inline char *allocate_padded_buffer(size_t length) noexcept { @@ -4030,107 +3919,97 @@ inline simdjson_result padded_string::load(std::string_view filen } // namespace simdjson -#endif // SIMDJSON_INLINE_PADDED_STRING_H -/* end file include/simdjson/padded_string-inl.h */ -/* begin file include/simdjson/padded_string_view-inl.h */ -#ifndef SIMDJSON_PADDED_STRING_VIEW_INL_H -#define SIMDJSON_PADDED_STRING_VIEW_INL_H +inline simdjson::padded_string operator "" _padded(const char *str, size_t len) { + return simdjson::padded_string(str, len); +} +#endif // SIMDJSON_PADDED_STRING_INL_H +/* end file simdjson/padded_string-inl.h */ +/* skipped duplicate #include "simdjson/padded_string_view.h" */ +/* skipped duplicate #include "simdjson/padded_string_view-inl.h" */ -#include -#include -#include -#include +/* including simdjson/dom.h: #include "simdjson/dom.h" */ +/* begin file simdjson/dom.h */ +#ifndef SIMDJSON_DOM_H +#define SIMDJSON_DOM_H -namespace simdjson { +/* including simdjson/dom/base.h: #include "simdjson/dom/base.h" */ +/* begin file simdjson/dom/base.h */ +#ifndef SIMDJSON_DOM_BASE_H +#define SIMDJSON_DOM_BASE_H -inline padded_string_view::padded_string_view(const char* s, size_t len, size_t capacity) noexcept - : std::string_view(s, len), _capacity(capacity) -{ -} +/* skipped duplicate #include "simdjson/base.h" */ -inline padded_string_view::padded_string_view(const uint8_t* s, size_t len, size_t capacity) noexcept - : padded_string_view(reinterpret_cast(s), len, capacity) -{ -} +namespace simdjson { -inline padded_string_view::padded_string_view(const std::string &s) noexcept - : std::string_view(s), _capacity(s.capacity()) -{ -} +/** + * @brief A DOM API on top of the simdjson parser. + */ +namespace dom { -inline padded_string_view::padded_string_view(std::string_view s, size_t capacity) noexcept - : std::string_view(s), _capacity(capacity) -{ -} +/** The default batch size for parser.parse_many() and parser.load_many() */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; -inline size_t padded_string_view::capacity() const noexcept { return _capacity; } +/** + * It is wasteful to allocate memory for tiny documents (e.g., 4 bytes). + */ +static constexpr size_t MINIMAL_DOCUMENT_CAPACITY = 32; -inline size_t padded_string_view::padding() const noexcept { return capacity() - length(); } +class array; +class document; +class document_stream; +class element; +class key_value_pair; +class object; +class parser; -} // namespace simdjson +#ifdef SIMDJSON_THREADS_ENABLED +struct stage1_worker; +#endif // SIMDJSON_THREADS_ENABLED -#endif // SIMDJSON_PADDED_STRING_VIEW_INL_H -/* end file include/simdjson/padded_string_view-inl.h */ +} // namespace dom -SIMDJSON_POP_DISABLE_WARNINGS +namespace internal { -#endif // SIMDJSON_BASE_H -/* end file include/simdjson/base.h */ +template +class string_builder; +class tape_ref; -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_UNDESIRED_WARNINGS +} // namespace internal -/* begin file include/simdjson/dom/array.h */ +} // namespace simdjson + +#endif // SIMDJSON_DOM_BASE_H +/* end file simdjson/dom/base.h */ +/* including simdjson/dom/array.h: #include "simdjson/dom/array.h" */ +/* begin file simdjson/dom/array.h */ #ifndef SIMDJSON_DOM_ARRAY_H #define SIMDJSON_DOM_ARRAY_H -/* begin file include/simdjson/internal/tape_ref.h */ +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* including simdjson/internal/tape_ref.h: #include "simdjson/internal/tape_ref.h" */ +/* begin file simdjson/internal/tape_ref.h */ #ifndef SIMDJSON_INTERNAL_TAPE_REF_H #define SIMDJSON_INTERNAL_TAPE_REF_H -/* begin file include/simdjson/internal/tape_type.h */ -#ifndef SIMDJSON_INTERNAL_TAPE_TYPE_H -#define SIMDJSON_INTERNAL_TAPE_TYPE_H +/* skipped duplicate #include "simdjson/base.h" */ namespace simdjson { -namespace internal { - -/** - * The possible types in the tape. - */ -enum class tape_type { - ROOT = 'r', - START_ARRAY = '[', - START_OBJECT = '{', - END_ARRAY = ']', - END_OBJECT = '}', - STRING = '"', - INT64 = 'l', - UINT64 = 'u', - DOUBLE = 'd', - TRUE_VALUE = 't', - FALSE_VALUE = 'f', - NULL_VALUE = 'n' -}; // enum class tape_type - -} // namespace internal -} // namespace simdjson - -#endif // SIMDJSON_INTERNAL_TAPE_TYPE_H -/* end file include/simdjson/internal/tape_type.h */ - -namespace simdjson { - namespace dom { - class document; -} +class document; +} // namespace dom namespace internal { -constexpr const uint64_t JSON_VALUE_MASK = 0x00FFFFFFFFFFFFFF; -constexpr const uint32_t JSON_COUNT_MASK = 0xFFFFFF; - /** * A reference to an element on the tape. Internal only. */ @@ -4168,19 +4047,11 @@ class tape_ref { } // namespace simdjson #endif // SIMDJSON_INTERNAL_TAPE_REF_H -/* end file include/simdjson/internal/tape_ref.h */ +/* end file simdjson/internal/tape_ref.h */ namespace simdjson { - -namespace internal { -template -class string_builder; -} namespace dom { -class document; -class element; - /** * JSON array. */ @@ -4347,27 +4218,31 @@ inline constexpr bool enable_view -#include namespace simdjson { namespace dom { -class element; - /** * A parsed JSON document. * @@ -4449,35 +4324,12 @@ class document { } // namespace simdjson #endif // SIMDJSON_DOM_DOCUMENT_H -/* end file include/simdjson/dom/document.h */ -#include -#include -#include +/* end file simdjson/dom/document.h */ namespace simdjson { namespace dom { -class document_stream; -class element; - -/** The default batch size for parser.parse_many() and parser.load_many() */ -static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; -/** - * Some adversary might try to set the batch size to 0 or 1, which might cause problems. - * We set a minimum of 32B since anything else is highly likely to be an error. In practice, - * most users will want a much larger batch size. - * - * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON - * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. - */ -static constexpr size_t MINIMAL_BATCH_SIZE = 32; - -/** - * It is wasteful to allocate memory for tiny documents (e.g., 4 bytes). - */ -static constexpr size_t MINIMAL_DOCUMENT_CAPACITY = 32; - /** * A persistent document parser. * @@ -5058,7 +4910,8 @@ class parser { } // namespace simdjson #endif // SIMDJSON_DOM_PARSER_H -/* end file include/simdjson/dom/parser.h */ +/* end file simdjson/dom/parser.h */ + #ifdef SIMDJSON_THREADS_ENABLED #include #include @@ -5068,7 +4921,6 @@ class parser { namespace simdjson { namespace dom { - #ifdef SIMDJSON_THREADS_ENABLED /** @private Custom worker class **/ struct stage1_worker { @@ -5377,22 +5229,18 @@ struct simdjson_result : public internal::simdjson_result_ } // namespace simdjson #endif // SIMDJSON_DOCUMENT_STREAM_H -/* end file include/simdjson/dom/document_stream.h */ -/* begin file include/simdjson/dom/element.h */ +/* end file simdjson/dom/document_stream.h */ +/* skipped duplicate #include "simdjson/dom/document.h" */ +/* including simdjson/dom/element.h: #include "simdjson/dom/element.h" */ +/* begin file simdjson/dom/element.h */ #ifndef SIMDJSON_DOM_ELEMENT_H #define SIMDJSON_DOM_ELEMENT_H -#include +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/array.h" */ namespace simdjson { -namespace internal { -template -class string_builder; -} namespace dom { -class array; -class document; -class object; /** * The actual concrete type of a JSON element @@ -5915,27 +5763,22 @@ struct simdjson_result : public internal::simdjson_result_base -class string_builder; -} namespace dom { -class document; -class element; -class key_value_pair; - /** * JSON object. */ @@ -6192,11 +6035,17 @@ inline constexpr bool enable_view namespace simdjson { @@ -6208,50 +6057,9 @@ namespace simdjson { */ namespace internal { -class mini_formatter; - -/** - * @private The string_builder template allows us to construct - * a string from a document element. It is parametrized - * by a "formatter" which handles the details. Thus - * the string_builder template could support both minification - * and prettification, and various other tradeoffs. - */ -template -class string_builder { -public: - /** Construct an initially empty builder, would print the empty string **/ - string_builder() = default; - /** Append an element to the builder (to be printed) **/ - inline void append(simdjson::dom::element value); - /** Append an array to the builder (to be printed) **/ - inline void append(simdjson::dom::array value); - /** Append an object to the builder (to be printed) **/ - inline void append(simdjson::dom::object value); - /** Reset the builder (so that it would print the empty string) **/ - simdjson_inline void clear(); - /** - * Get access to the string. The string_view is owned by the builder - * and it is invalid to use it after the string_builder has been - * destroyed. - * However you can make a copy of the string_view on memory that you - * own. - */ - simdjson_inline std::string_view str() const; - /** Append a key_value_pair to the builder (to be printed) **/ - simdjson_inline void append(simdjson::dom::key_value_pair value); -private: - formatter format{}; -}; - -/** - * @private This is the class that we expect to use with the string_builder - * template. It tries to produce a compact version of the JSON element - * as quickly as possible. - */ -class mini_formatter { +template +class base_formatter { public: - mini_formatter() = default; /** Add a comma **/ simdjson_inline void comma(); /** Start an array, prints [ **/ @@ -6286,14 +6094,88 @@ class mini_formatter { **/ simdjson_inline std::string_view str() const; -private: - // implementation details (subject to change) /** Prints one character **/ simdjson_inline void one_char(char c); + + simdjson_inline void call_print_newline() { + this->print_newline(); + } + + simdjson_inline void call_print_indents(size_t depth) { + this->print_indents(depth); + } + + simdjson_inline void call_print_space() { + this->print_space(); + } + +protected: + // implementation details (subject to change) /** Backing buffer **/ std::vector buffer{}; // not ideal! }; + +/** + * @private This is the class that we expect to use with the string_builder + * template. It tries to produce a compact version of the JSON element + * as quickly as possible. + */ +class mini_formatter : public base_formatter { +public: + simdjson_inline void print_newline(); + + simdjson_inline void print_indents(size_t depth); + + simdjson_inline void print_space(); +}; + +class pretty_formatter : public base_formatter { +public: + simdjson_inline void print_newline(); + + simdjson_inline void print_indents(size_t depth); + + simdjson_inline void print_space(); + +protected: + int indent_step = 4; +}; + +/** + * @private The string_builder template allows us to construct + * a string from a document element. It is parametrized + * by a "formatter" which handles the details. Thus + * the string_builder template could support both minification + * and prettification, and various other tradeoffs. + */ +template +class string_builder { +public: + /** Construct an initially empty builder, would print the empty string **/ + string_builder() = default; + /** Append an element to the builder (to be printed) **/ + inline void append(simdjson::dom::element value); + /** Append an array to the builder (to be printed) **/ + inline void append(simdjson::dom::array value); + /** Append an object to the builder (to be printed) **/ + inline void append(simdjson::dom::object value); + /** Reset the builder (so that it would print the empty string) **/ + simdjson_inline void clear(); + /** + * Get access to the string. The string_view is owned by the builder + * and it is invalid to use it after the string_builder has been + * destroyed. + * However you can make a copy of the string_view on memory that you + * own. + */ + simdjson_inline std::string_view str() const; + /** Append a key_value_pair to the builder (to be printed) **/ + simdjson_inline void append(simdjson::dom::key_value_pair value); +private: + formatter format{}; +}; + } // internal namespace dom { @@ -6305,16 +6187,9 @@ namespace dom { * @param value The element. * @throw if there is an error with the underlying output stream. simdjson itself will not throw. */ -inline std::ostream& operator<<(std::ostream& out, simdjson::dom::element value) { - simdjson::internal::string_builder<> sb; - sb.append(value); - return (out << sb.str()); -} +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::element value); #if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { - if (x.error()) { throw simdjson::simdjson_error(x.error()); } - return (out << x.value()); -} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); #endif /** * Print JSON to an output stream. @@ -6323,16 +6198,9 @@ inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result sb; - sb.append(value); - return (out << sb.str()); -} +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::array value); #if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { - if (x.error()) { throw simdjson::simdjson_error(x.error()); } - return (out << x.value()); -} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); #endif /** * Print JSON to an output stream. @@ -6341,16 +6209,9 @@ inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result sb; - sb.append(value); - return (out << sb.str()); -} +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::object value); #if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { - if (x.error()) { throw simdjson::simdjson_error(x.error()); } - return (out << x.value()); -} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); #endif } // namespace dom @@ -6401,676 +6262,383 @@ std::string minify(simdjson_result x) { } #endif +/** + * Prettifies a JSON element or document, printing the valid JSON with indentation. + * + * dom::parser parser; + * element doc = parser.parse(" [ 1 , 2 , 3 ] "_padded); + * + * // Prints: + * // { + * // [ + * // 1, + * // 2, + * // 3 + * // ] + * // } + * cout << prettify(doc) << endl; + * + */ +template +std::string prettify(T x) { + simdjson::internal::string_builder sb; + sb.append(x); + std::string_view answer = sb.str(); + return std::string(answer.data(), answer.size()); +} + +#if SIMDJSON_EXCEPTIONS +template +std::string prettify(simdjson_result x) { + if (x.error()) { throw simdjson_error(x.error()); } + return to_string(x.value()); +} +#endif } // namespace simdjson #endif -/* end file include/simdjson/dom/serialization.h */ +/* end file simdjson/dom/serialization.h */ // Deprecated API -/* begin file include/simdjson/dom/jsonparser.h */ +/* including simdjson/dom/jsonparser.h: #include "simdjson/dom/jsonparser.h" */ +/* begin file simdjson/dom/jsonparser.h */ // TODO Remove this -- deprecated API and files #ifndef SIMDJSON_DOM_JSONPARSER_H #define SIMDJSON_DOM_JSONPARSER_H -/* begin file include/simdjson/dom/parsedjson.h */ -// TODO Remove this -- deprecated API and files - -#ifndef SIMDJSON_DOM_PARSEDJSON_H -#define SIMDJSON_DOM_PARSEDJSON_H - +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/parser.h" */ +/* skipped duplicate #include "simdjson/dom/element.h" */ + +/* including simdjson/dom/parser-inl.h: #include "simdjson/dom/parser-inl.h" */ +/* begin file simdjson/dom/parser-inl.h */ +#ifndef SIMDJSON_PARSER_INL_H +#define SIMDJSON_PARSER_INL_H + +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/document_stream.h" */ +/* skipped duplicate #include "simdjson/implementation.h" */ +/* skipped duplicate #include "simdjson/internal/dom_parser_implementation.h" */ + +/* skipped duplicate #include "simdjson/error-inl.h" */ +/* skipped duplicate #include "simdjson/padded_string-inl.h" */ +/* including simdjson/dom/document_stream-inl.h: #include "simdjson/dom/document_stream-inl.h" */ +/* begin file simdjson/dom/document_stream-inl.h */ +#ifndef SIMDJSON_DOCUMENT_STREAM_INL_H +#define SIMDJSON_DOCUMENT_STREAM_INL_H + +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/document_stream.h" */ +/* including simdjson/dom/element-inl.h: #include "simdjson/dom/element-inl.h" */ +/* begin file simdjson/dom/element-inl.h */ +#ifndef SIMDJSON_ELEMENT_INL_H +#define SIMDJSON_ELEMENT_INL_H + +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/element.h" */ +/* skipped duplicate #include "simdjson/dom/document.h" */ +/* skipped duplicate #include "simdjson/dom/object.h" */ +/* including simdjson/internal/tape_type.h: #include "simdjson/internal/tape_type.h" */ +/* begin file simdjson/internal/tape_type.h */ +#ifndef SIMDJSON_INTERNAL_TAPE_TYPE_H +#define SIMDJSON_INTERNAL_TAPE_TYPE_H namespace simdjson { +namespace internal { /** - * @deprecated Use `dom::parser` instead. + * The possible types in the tape. */ -using ParsedJson [[deprecated("Use dom::parser instead")]] = dom::parser; +enum class tape_type { + ROOT = 'r', + START_ARRAY = '[', + START_OBJECT = '{', + END_ARRAY = ']', + END_OBJECT = '}', + STRING = '"', + INT64 = 'l', + UINT64 = 'u', + DOUBLE = 'd', + TRUE_VALUE = 't', + FALSE_VALUE = 'f', + NULL_VALUE = 'n' +}; // enum class tape_type +} // namespace internal } // namespace simdjson -#endif // SIMDJSON_DOM_PARSEDJSON_H -/* end file include/simdjson/dom/parsedjson.h */ -/* begin file include/simdjson/jsonioutil.h */ -#ifndef SIMDJSON_JSONIOUTIL_H -#define SIMDJSON_JSONIOUTIL_H - +#endif // SIMDJSON_INTERNAL_TAPE_TYPE_H +/* end file simdjson/internal/tape_type.h */ -namespace simdjson { +/* including simdjson/dom/object-inl.h: #include "simdjson/dom/object-inl.h" */ +/* begin file simdjson/dom/object-inl.h */ +#ifndef SIMDJSON_OBJECT_INL_H +#define SIMDJSON_OBJECT_INL_H -#if SIMDJSON_EXCEPTIONS -#ifndef SIMDJSON_DISABLE_DEPRECATED_API -[[deprecated("Use padded_string::load() instead")]] -inline padded_string get_corpus(const char *path) { - return padded_string::load(path); -} -#endif // SIMDJSON_DISABLE_DEPRECATED_API -#endif // SIMDJSON_EXCEPTIONS +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/object.h" */ +/* skipped duplicate #include "simdjson/dom/document.h" */ -} // namespace simdjson +/* skipped duplicate #include "simdjson/dom/element-inl.h" */ +/* skipped duplicate #include "simdjson/error-inl.h" */ -#endif // SIMDJSON_JSONIOUTIL_H -/* end file include/simdjson/jsonioutil.h */ +#include namespace simdjson { // -// C API (json_parse and build_parsed_json) declarations +// simdjson_result inline implementation // +simdjson_inline simdjson_result::simdjson_result() noexcept + : internal::simdjson_result_base() {} +simdjson_inline simdjson_result::simdjson_result(dom::object value) noexcept + : internal::simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : internal::simdjson_result_base(error) {} -#ifndef SIMDJSON_DISABLE_DEPRECATED_API -[[deprecated("Use parser.parse() instead")]] -inline int json_parse(const uint8_t *buf, size_t len, dom::parser &parser, bool realloc_if_needed = true) noexcept { - error_code code = parser.parse(buf, len, realloc_if_needed).error(); - // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid - // bits in the parser instead of heeding the result code. The normal parser unsets those in - // anticipation of making the error code ephemeral. - // Here we put the code back into the parser, until we've removed this method. - parser.valid = code == SUCCESS; - parser.error = code; - return code; +inline simdjson_result simdjson_result::operator[](std::string_view key) const noexcept { + if (error()) { return error(); } + return first[key]; } -[[deprecated("Use parser.parse() instead")]] -inline int json_parse(const char *buf, size_t len, dom::parser &parser, bool realloc_if_needed = true) noexcept { - error_code code = parser.parse(buf, len, realloc_if_needed).error(); - // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid - // bits in the parser instead of heeding the result code. The normal parser unsets those in - // anticipation of making the error code ephemeral. - // Here we put the code back into the parser, until we've removed this method. - parser.valid = code == SUCCESS; - parser.error = code; - return code; +inline simdjson_result simdjson_result::operator[](const char *key) const noexcept { + if (error()) { return error(); } + return first[key]; } -[[deprecated("Use parser.parse() instead")]] -inline int json_parse(const std::string &s, dom::parser &parser, bool realloc_if_needed = true) noexcept { - error_code code = parser.parse(s.data(), s.length(), realloc_if_needed).error(); - // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid - // bits in the parser instead of heeding the result code. The normal parser unsets those in - // anticipation of making the error code ephemeral. - // Here we put the code back into the parser, until we've removed this method. - parser.valid = code == SUCCESS; - parser.error = code; - return code; +inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) const noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); } -[[deprecated("Use parser.parse() instead")]] -inline int json_parse(const padded_string &s, dom::parser &parser) noexcept { - error_code code = parser.parse(s).error(); - // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid - // bits in the parser instead of heeding the result code. The normal parser unsets those in - // anticipation of making the error code ephemeral. - // Here we put the code back into the parser, until we've removed this method. - parser.valid = code == SUCCESS; - parser.error = code; - return code; +inline simdjson_result simdjson_result::at_key(std::string_view key) const noexcept { + if (error()) { return error(); } + return first.at_key(key); } - -[[deprecated("Use parser.parse() instead")]] -simdjson_warn_unused inline dom::parser build_parsed_json(const uint8_t *buf, size_t len, bool realloc_if_needed = true) noexcept { - dom::parser parser; - error_code code = parser.parse(buf, len, realloc_if_needed).error(); - // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid - // bits in the parser instead of heeding the result code. The normal parser unsets those in - // anticipation of making the error code ephemeral. - // Here we put the code back into the parser, until we've removed this method. - parser.valid = code == SUCCESS; - parser.error = code; - return parser; +inline simdjson_result simdjson_result::at_key_case_insensitive(std::string_view key) const noexcept { + if (error()) { return error(); } + return first.at_key_case_insensitive(key); } -[[deprecated("Use parser.parse() instead")]] -simdjson_warn_unused inline dom::parser build_parsed_json(const char *buf, size_t len, bool realloc_if_needed = true) noexcept { - dom::parser parser; - error_code code = parser.parse(buf, len, realloc_if_needed).error(); - // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid - // bits in the parser instead of heeding the result code. The normal parser unsets those in - // anticipation of making the error code ephemeral. - // Here we put the code back into the parser, until we've removed this method. - parser.valid = code == SUCCESS; - parser.error = code; - return parser; + +#if SIMDJSON_EXCEPTIONS + +inline dom::object::iterator simdjson_result::begin() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.begin(); } -[[deprecated("Use parser.parse() instead")]] -simdjson_warn_unused inline dom::parser build_parsed_json(const std::string &s, bool realloc_if_needed = true) noexcept { - dom::parser parser; - error_code code = parser.parse(s.data(), s.length(), realloc_if_needed).error(); - // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid - // bits in the parser instead of heeding the result code. The normal parser unsets those in - // anticipation of making the error code ephemeral. - // Here we put the code back into the parser, until we've removed this method. - parser.valid = code == SUCCESS; - parser.error = code; - return parser; +inline dom::object::iterator simdjson_result::end() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.end(); } -[[deprecated("Use parser.parse() instead")]] -simdjson_warn_unused inline dom::parser build_parsed_json(const padded_string &s) noexcept { - dom::parser parser; - error_code code = parser.parse(s).error(); - // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid - // bits in the parser instead of heeding the result code. The normal parser unsets those in - // anticipation of making the error code ephemeral. - // Here we put the code back into the parser, until we've removed this method. - parser.valid = code == SUCCESS; - parser.error = code; - return parser; +inline size_t simdjson_result::size() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.size(); } -#endif // SIMDJSON_DISABLE_DEPRECATED_API - -/** @private We do not want to allow implicit conversion from C string to std::string. */ -int json_parse(const char *buf, dom::parser &parser) noexcept = delete; -/** @private We do not want to allow implicit conversion from C string to std::string. */ -dom::parser build_parsed_json(const char *buf) noexcept = delete; - -} // namespace simdjson - -#endif // SIMDJSON_DOM_JSONPARSER_H -/* end file include/simdjson/dom/jsonparser.h */ -/* begin file include/simdjson/dom/parsedjson_iterator.h */ -// TODO Remove this -- deprecated API and files - -#ifndef SIMDJSON_DOM_PARSEDJSON_ITERATOR_H -#define SIMDJSON_DOM_PARSEDJSON_ITERATOR_H - -#include -#include -#include -#include -#include -#include - -/* begin file include/simdjson/internal/jsonformatutils.h */ -#ifndef SIMDJSON_INTERNAL_JSONFORMATUTILS_H -#define SIMDJSON_INTERNAL_JSONFORMATUTILS_H - -#include -#include -#include - -namespace simdjson { -namespace internal { -class escape_json_string; - -inline std::ostream& operator<<(std::ostream& out, const escape_json_string &str); +#endif // SIMDJSON_EXCEPTIONS -class escape_json_string { -public: - escape_json_string(std::string_view _str) noexcept : str{_str} {} - operator std::string() const noexcept { std::stringstream s; s << *this; return s.str(); } -private: - std::string_view str; - friend std::ostream& operator<<(std::ostream& out, const escape_json_string &unescaped); -}; +namespace dom { -inline std::ostream& operator<<(std::ostream& out, const escape_json_string &unescaped) { - for (size_t i=0; i(unescaped.str[i]) <= 0x1F) { - // TODO can this be done once at the beginning, or will it mess up << char? - std::ios::fmtflags f(out.flags()); - out << "\\u" << std::hex << std::setw(4) << std::setfill('0') << int(unescaped.str[i]); - out.flags(f); - } else { - out << unescaped.str[i]; - } - } - } - return out; +// +// object inline implementation +// +simdjson_inline object::object() noexcept : tape{} {} +simdjson_inline object::object(const internal::tape_ref &_tape) noexcept : tape{_tape} { } +inline object::iterator object::begin() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return internal::tape_ref(tape.doc, tape.json_index + 1); +} +inline object::iterator object::end() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return internal::tape_ref(tape.doc, tape.after_element() - 1); +} +inline size_t object::size() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return tape.scope_count(); } -} // namespace internal -} // namespace simdjson - -#endif // SIMDJSON_INTERNAL_JSONFORMATUTILS_H -/* end file include/simdjson/internal/jsonformatutils.h */ - -#ifndef SIMDJSON_DISABLE_DEPRECATED_API - -namespace simdjson { -/** @private **/ -class [[deprecated("Use the new DOM navigation API instead (see doc/basics.md)")]] dom::parser::Iterator { -public: - inline Iterator(const dom::parser &parser) noexcept(false); - inline Iterator(const Iterator &o) noexcept; - inline ~Iterator() noexcept; - - inline Iterator& operator=(const Iterator&) = delete; - - inline bool is_ok() const; - - // useful for debugging purposes - inline size_t get_tape_location() const; - - // useful for debugging purposes - inline size_t get_tape_length() const; - - // returns the current depth (start at 1 with 0 reserved for the fictitious - // root node) - inline size_t get_depth() const; - - // A scope is a series of nodes at the same depth, typically it is either an - // object ({) or an array ([). The root node has type 'r'. - inline uint8_t get_scope_type() const; - - // move forward in document order - inline bool move_forward(); - - // retrieve the character code of what we're looking at: - // [{"slutfn are the possibilities - inline uint8_t get_type() const { - return current_type; // short functions should be inlined! - } - - // get the int64_t value at this node; valid only if get_type is "l" - inline int64_t get_integer() const { - if (location + 1 >= tape_length) { - return 0; // default value in case of error - } - return static_cast(doc.tape[location + 1]); +inline simdjson_result object::operator[](std::string_view key) const noexcept { + return at_key(key); +} +inline simdjson_result object::operator[](const char *key) const noexcept { + return at_key(key); +} +inline simdjson_result object::at_pointer(std::string_view json_pointer) const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + if(json_pointer.empty()) { // an empty string means that we return the current node + return element(this->tape); // copy the current node + } else if(json_pointer[0] != '/') { // otherwise there is an error + return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; - // get the value as uint64; valid only if if get_type is "u" - inline uint64_t get_unsigned_integer() const { - if (location + 1 >= tape_length) { - return 0; // default value in case of error + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); } - return doc.tape[location + 1]; + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = at_key(unescaped); + } else { + child = at_key(key); } - - // get the string value at this node (NULL ended); valid only if get_type is " - // note that tabs, and line endings are escaped in the returned value (see - // print_with_escapes) return value is valid UTF-8, it may contain NULL chars - // within the string: get_string_length determines the true string length. - inline const char *get_string() const { - return reinterpret_cast( - doc.string_buf.get() + (current_val & internal::JSON_VALUE_MASK) + sizeof(uint32_t)); + if(child.error()) { + return child; // we do not continue if there was an error } - - // return the length of the string in bytes - inline uint32_t get_string_length() const { - uint32_t answer; - std::memcpy(&answer, - reinterpret_cast(doc.string_buf.get() + - (current_val & internal::JSON_VALUE_MASK)), - sizeof(uint32_t)); - return answer; + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); } + return child; +} - // get the double value at this node; valid only if - // get_type() is "d" - inline double get_double() const { - if (location + 1 >= tape_length) { - return std::numeric_limits::quiet_NaN(); // default value in - // case of error - } - double answer; - std::memcpy(&answer, &doc.tape[location + 1], sizeof(answer)); - return answer; - } - - inline bool is_object_or_array() const { return is_object() || is_array(); } - - inline bool is_object() const { return get_type() == '{'; } - - inline bool is_array() const { return get_type() == '['; } - - inline bool is_string() const { return get_type() == '"'; } - - // Returns true if the current type of the node is an signed integer. - // You can get its value with `get_integer()`. - inline bool is_integer() const { return get_type() == 'l'; } - - // Returns true if the current type of the node is an unsigned integer. - // You can get its value with `get_unsigned_integer()`. - // - // NOTE: - // Only a large value, which is out of range of a 64-bit signed integer, is - // represented internally as an unsigned node. On the other hand, a typical - // positive integer, such as 1, 42, or 1000000, is as a signed node. - // Be aware this function returns false for a signed node. - inline bool is_unsigned_integer() const { return get_type() == 'u'; } - // Returns true if the current type of the node is a double floating-point number. - inline bool is_double() const { return get_type() == 'd'; } - // Returns true if the current type of the node is a number (integer or floating-point). - inline bool is_number() const { - return is_integer() || is_unsigned_integer() || is_double(); - } - // Returns true if the current type of the node is a bool with true value. - inline bool is_true() const { return get_type() == 't'; } - // Returns true if the current type of the node is a bool with false value. - inline bool is_false() const { return get_type() == 'f'; } - // Returns true if the current type of the node is null. - inline bool is_null() const { return get_type() == 'n'; } - // Returns true if the type byte represents an object of an array - static bool is_object_or_array(uint8_t type) { - return ((type == '[') || (type == '{')); - } - - // when at {, go one level deep, looking for a given key - // if successful, we are left pointing at the value, - // if not, we are still pointing at the object ({) - // (in case of repeated keys, this only finds the first one). - // We seek the key using C's strcmp so if your JSON strings contain - // NULL chars, this would trigger a false positive: if you expect that - // to be the case, take extra precautions. - // Furthermore, we do the comparison character-by-character - // without taking into account Unicode equivalence. - inline bool move_to_key(const char *key); - - // as above, but case insensitive lookup (strcmpi instead of strcmp) - inline bool move_to_key_insensitive(const char *key); - - // when at {, go one level deep, looking for a given key - // if successful, we are left pointing at the value, - // if not, we are still pointing at the object ({) - // (in case of repeated keys, this only finds the first one). - // The string we search for can contain NULL values. - // Furthermore, we do the comparison character-by-character - // without taking into account Unicode equivalence. - inline bool move_to_key(const char *key, uint32_t length); - - // when at a key location within an object, this moves to the accompanying - // value (located next to it). This is equivalent but much faster than - // calling "next()". - inline void move_to_value(); - - // when at [, go one level deep, and advance to the given index. - // if successful, we are left pointing at the value, - // if not, we are still pointing at the array ([) - inline bool move_to_index(uint32_t index); - - // Moves the iterator to the value corresponding to the json pointer. - // Always search from the root of the document. - // if successful, we are left pointing at the value, - // if not, we are still pointing the same value we were pointing before the - // call. The json pointer follows the rfc6901 standard's syntax: - // https://tools.ietf.org/html/rfc6901 However, the standard says "If a - // referenced member name is not unique in an object, the member that is - // referenced is undefined, and evaluation fails". Here we just return the - // first corresponding value. The length parameter is the length of the - // jsonpointer string ('pointer'). - inline bool move_to(const char *pointer, uint32_t length); - - // Moves the iterator to the value corresponding to the json pointer. - // Always search from the root of the document. - // if successful, we are left pointing at the value, - // if not, we are still pointing the same value we were pointing before the - // call. The json pointer implementation follows the rfc6901 standard's - // syntax: https://tools.ietf.org/html/rfc6901 However, the standard says - // "If a referenced member name is not unique in an object, the member that - // is referenced is undefined, and evaluation fails". Here we just return - // the first corresponding value. - inline bool move_to(const std::string &pointer) { - return move_to(pointer.c_str(), uint32_t(pointer.length())); - } - - private: - // Almost the same as move_to(), except it searches from the current - // position. The pointer's syntax is identical, though that case is not - // handled by the rfc6901 standard. The '/' is still required at the - // beginning. However, contrary to move_to(), the URI Fragment Identifier - // Representation is not supported here. Also, in case of failure, we are - // left pointing at the closest value it could reach. For these reasons it - // is private. It exists because it is used by move_to(). - inline bool relative_move_to(const char *pointer, uint32_t length); - - public: - // throughout return true if we can do the navigation, false - // otherwise - - // Within a given scope (series of nodes at the same depth within either an - // array or an object), we move forward. - // Thus, given [true, null, {"a":1}, [1,2]], we would visit true, null, { - // and [. At the object ({) or at the array ([), you can issue a "down" to - // visit their content. valid if we're not at the end of a scope (returns - // true). - inline bool next(); - - // Within a given scope (series of nodes at the same depth within either an - // array or an object), we move backward. - // Thus, given [true, null, {"a":1}, [1,2]], we would visit ], }, null, true - // when starting at the end of the scope. At the object ({) or at the array - // ([), you can issue a "down" to visit their content. - // Performance warning: This function is implemented by starting again - // from the beginning of the scope and scanning forward. You should expect - // it to be relatively slow. - inline bool prev(); - - // Moves back to either the containing array or object (type { or [) from - // within a contained scope. - // Valid unless we are at the first level of the document - inline bool up(); - - // Valid if we're at a [ or { and it starts a non-empty scope; moves us to - // start of that deeper scope if it not empty. Thus, given [true, null, - // {"a":1}, [1,2]], if we are at the { node, we would move to the "a" node. - inline bool down(); - - // move us to the start of our current scope, - // a scope is a series of nodes at the same level - inline void to_start_scope(); - - inline void rewind() { - while (up()) - ; +inline simdjson_result object::at_key(std::string_view key) const noexcept { + iterator end_field = end(); + for (iterator field = begin(); field != end_field; ++field) { + if (field.key_equals(key)) { + return field.value(); + } } - - - - // print the node we are currently pointing at - inline bool print(std::ostream &os, bool escape_strings = true) const; - - private: - const document &doc; - size_t max_depth{}; - size_t depth{}; - size_t location{}; // our current location on a tape - size_t tape_length{}; - uint8_t current_type{}; - uint64_t current_val{}; - typedef struct { - size_t start_of_scope; - uint8_t scope_type; - } scopeindex_t; - - scopeindex_t *depth_index{}; -}; - -} // namespace simdjson -#endif // SIMDJSON_DISABLE_DEPRECATED_API - -#endif // SIMDJSON_DOM_PARSEDJSON_ITERATOR_H -/* end file include/simdjson/dom/parsedjson_iterator.h */ - -// Inline functions -/* begin file include/simdjson/dom/array-inl.h */ -#ifndef SIMDJSON_INLINE_ARRAY_H -#define SIMDJSON_INLINE_ARRAY_H - -// Inline implementations go in here. - -#include - -namespace simdjson { - -// -// simdjson_result inline implementation -// -simdjson_inline simdjson_result::simdjson_result() noexcept - : internal::simdjson_result_base() {} -simdjson_inline simdjson_result::simdjson_result(dom::array value) noexcept - : internal::simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : internal::simdjson_result_base(error) {} - -#if SIMDJSON_EXCEPTIONS - -inline dom::array::iterator simdjson_result::begin() const noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first.begin(); -} -inline dom::array::iterator simdjson_result::end() const noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first.end(); -} -inline size_t simdjson_result::size() const noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first.size(); -} - -#endif // SIMDJSON_EXCEPTIONS - -inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) const noexcept { - if (error()) { return error(); } - return first.at_pointer(json_pointer); + return NO_SUCH_FIELD; } -inline simdjson_result simdjson_result::at(size_t index) const noexcept { - if (error()) { return error(); } - return first.at(index); +// In case you wonder why we need this, please see +// https://github.com/simdjson/simdjson/issues/323 +// People do seek keys in a case-insensitive manner. +inline simdjson_result object::at_key_case_insensitive(std::string_view key) const noexcept { + iterator end_field = end(); + for (iterator field = begin(); field != end_field; ++field) { + if (field.key_equals_case_insensitive(key)) { + return field.value(); + } + } + return NO_SUCH_FIELD; } -namespace dom { - // -// array inline implementation +// object::iterator inline implementation // -simdjson_inline array::array() noexcept : tape{} {} -simdjson_inline array::array(const internal::tape_ref &_tape) noexcept : tape{_tape} {} -inline array::iterator array::begin() const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - return internal::tape_ref(tape.doc, tape.json_index + 1); +simdjson_inline object::iterator::iterator(const internal::tape_ref &_tape) noexcept : tape{_tape} { } +inline const key_value_pair object::iterator::operator*() const noexcept { + return key_value_pair(key(), value()); } -inline array::iterator array::end() const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - return internal::tape_ref(tape.doc, tape.after_element() - 1); +inline bool object::iterator::operator!=(const object::iterator& other) const noexcept { + return tape.json_index != other.tape.json_index; } -inline size_t array::size() const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - return tape.scope_count(); +inline bool object::iterator::operator==(const object::iterator& other) const noexcept { + return tape.json_index == other.tape.json_index; } -inline size_t array::number_of_slots() const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - return tape.matching_brace_index() - tape.json_index; +inline bool object::iterator::operator<(const object::iterator& other) const noexcept { + return tape.json_index < other.tape.json_index; } -inline simdjson_result array::at_pointer(std::string_view json_pointer) const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - if(json_pointer.empty()) { // an empty string means that we return the current node - return element(this->tape); // copy the current node - } else if(json_pointer[0] != '/') { // otherwise there is an error - return INVALID_JSON_POINTER; - } - json_pointer = json_pointer.substr(1); - // - means "the append position" or "the element after the end of the array" - // We don't support this, because we're returning a real element, not a position. - if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } - - // Read the array index - size_t array_index = 0; - size_t i; - for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { - uint8_t digit = uint8_t(json_pointer[i] - '0'); - // Check for non-digit in array index. If it's there, we're trying to get a field in an object - if (digit > 9) { return INCORRECT_TYPE; } - array_index = array_index*10 + digit; - } - - // 0 followed by other digits is invalid - if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" - - // Empty string is invalid; so is a "/" with no digits before it - if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" - - // Get the child - auto child = array(tape).at(array_index); - // If there is an error, it ends here - if(child.error()) { - return child; - } - // If there is a /, we're not done yet, call recursively. - if (i < json_pointer.length()) { - child = child.at_pointer(json_pointer.substr(i)); - } - return child; +inline bool object::iterator::operator<=(const object::iterator& other) const noexcept { + return tape.json_index <= other.tape.json_index; } - -inline simdjson_result array::at(size_t index) const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - size_t i=0; - for (auto element : *this) { - if (i == index) { return element; } - i++; - } - return INDEX_OUT_OF_BOUNDS; +inline bool object::iterator::operator>=(const object::iterator& other) const noexcept { + return tape.json_index >= other.tape.json_index; } - -// -// array::iterator inline implementation -// -simdjson_inline array::iterator::iterator(const internal::tape_ref &_tape) noexcept : tape{_tape} { } -inline element array::iterator::operator*() const noexcept { - return element(tape); +inline bool object::iterator::operator>(const object::iterator& other) const noexcept { + return tape.json_index > other.tape.json_index; } -inline array::iterator& array::iterator::operator++() noexcept { +inline object::iterator& object::iterator::operator++() noexcept { + tape.json_index++; tape.json_index = tape.after_element(); return *this; } -inline array::iterator array::iterator::operator++(int) noexcept { - array::iterator out = *this; +inline object::iterator object::iterator::operator++(int) noexcept { + object::iterator out = *this; ++*this; return out; } -inline bool array::iterator::operator!=(const array::iterator& other) const noexcept { - return tape.json_index != other.tape.json_index; +inline std::string_view object::iterator::key() const noexcept { + return tape.get_string_view(); } -inline bool array::iterator::operator==(const array::iterator& other) const noexcept { - return tape.json_index == other.tape.json_index; +inline uint32_t object::iterator::key_length() const noexcept { + return tape.get_string_length(); } -inline bool array::iterator::operator<(const array::iterator& other) const noexcept { - return tape.json_index < other.tape.json_index; +inline const char* object::iterator::key_c_str() const noexcept { + return reinterpret_cast(&tape.doc->string_buf[size_t(tape.tape_value()) + sizeof(uint32_t)]); } -inline bool array::iterator::operator<=(const array::iterator& other) const noexcept { - return tape.json_index <= other.tape.json_index; +inline element object::iterator::value() const noexcept { + return element(internal::tape_ref(tape.doc, tape.json_index + 1)); } -inline bool array::iterator::operator>=(const array::iterator& other) const noexcept { - return tape.json_index >= other.tape.json_index; + +/** + * Design notes: + * Instead of constructing a string_view and then comparing it with a + * user-provided strings, it is probably more performant to have dedicated + * functions taking as a parameter the string we want to compare against + * and return true when they are equal. That avoids the creation of a temporary + * std::string_view. Though it is possible for the compiler to avoid entirely + * any overhead due to string_view, relying too much on compiler magic is + * problematic: compiler magic sometimes fail, and then what do you do? + * Also, enticing users to rely on high-performance function is probably better + * on the long run. + */ + +inline bool object::iterator::key_equals(std::string_view o) const noexcept { + // We use the fact that the key length can be computed quickly + // without access to the string buffer. + const uint32_t len = key_length(); + if(o.size() == len) { + // We avoid construction of a temporary string_view instance. + return (memcmp(o.data(), key_c_str(), len) == 0); + } + return false; } -inline bool array::iterator::operator>(const array::iterator& other) const noexcept { - return tape.json_index > other.tape.json_index; + +inline bool object::iterator::key_equals_case_insensitive(std::string_view o) const noexcept { + // We use the fact that the key length can be computed quickly + // without access to the string buffer. + const uint32_t len = key_length(); + if(o.size() == len) { + // See For case-insensitive string comparisons, avoid char-by-char functions + // https://lemire.me/blog/2020/04/30/for-case-insensitive-string-comparisons-avoid-char-by-char-functions/ + // Note that it might be worth rolling our own strncasecmp function, with vectorization. + return (simdjson_strncasecmp(o.data(), key_c_str(), len) == 0); + } + return false; } +// +// key_value_pair inline implementation +// +inline key_value_pair::key_value_pair(std::string_view _key, element _value) noexcept : + key(_key), value(_value) {} } // namespace dom - } // namespace simdjson -/* begin file include/simdjson/dom/element-inl.h */ -#ifndef SIMDJSON_INLINE_ELEMENT_H -#define SIMDJSON_INLINE_ELEMENT_H +#if defined(__cpp_lib_ranges) +static_assert(std::ranges::view); +static_assert(std::ranges::sized_range); +#if SIMDJSON_EXCEPTIONS +static_assert(std::ranges::view>); +static_assert(std::ranges::sized_range>); +#endif // SIMDJSON_EXCEPTIONS +#endif // defined(__cpp_lib_ranges) -#include -#include +#endif // SIMDJSON_OBJECT_INL_H +/* end file simdjson/dom/object-inl.h */ +/* skipped duplicate #include "simdjson/error-inl.h" */ + +#include +#include namespace simdjson { @@ -7503,31 +7071,17 @@ inline std::ostream& operator<<(std::ostream& out, element_type type) { } // namespace simdjson -#endif // SIMDJSON_INLINE_ELEMENT_H -/* end file include/simdjson/dom/element-inl.h */ +#endif // SIMDJSON_ELEMENT_INL_H +/* end file simdjson/dom/element-inl.h */ +/* skipped duplicate #include "simdjson/dom/parser-inl.h" */ +/* skipped duplicate #include "simdjson/error-inl.h" */ +/* skipped duplicate #include "simdjson/internal/dom_parser_implementation.h" */ -#if defined(__cpp_lib_ranges) -static_assert(std::ranges::view); -static_assert(std::ranges::sized_range); -#if SIMDJSON_EXCEPTIONS -static_assert(std::ranges::view>); -static_assert(std::ranges::sized_range>); -#endif // SIMDJSON_EXCEPTIONS -#endif // defined(__cpp_lib_ranges) - -#endif // SIMDJSON_INLINE_ARRAY_H -/* end file include/simdjson/dom/array-inl.h */ -/* begin file include/simdjson/dom/document_stream-inl.h */ -#ifndef SIMDJSON_INLINE_DOCUMENT_STREAM_H -#define SIMDJSON_INLINE_DOCUMENT_STREAM_H - -#include -#include -#include namespace simdjson { namespace dom { #ifdef SIMDJSON_THREADS_ENABLED + inline void stage1_worker::finish() { // After calling "run" someone would call finish() to wait // for the end of the processing. @@ -7856,1153 +7410,637 @@ simdjson_inline dom::document_stream::iterator simdjson_result -#include +#include namespace simdjson { namespace dom { // -// document inline implementation +// parser inline implementation // -inline element document::root() const noexcept { - return element(internal::tape_ref(this, 1)); +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity}, + loaded_bytes(nullptr) { } -simdjson_warn_unused -inline size_t document::capacity() const noexcept { - return allocated_capacity; +simdjson_inline parser::parser(parser &&other) noexcept = default; +simdjson_inline parser &parser::operator=(parser &&other) noexcept = default; + +inline bool parser::is_valid() const noexcept { return valid; } +inline int parser::get_error_code() const noexcept { return error; } +inline std::string parser::get_error_message() const noexcept { return error_message(error); } + +inline bool parser::dump_raw_tape(std::ostream &os) const noexcept { + return valid ? doc.dump_raw_tape(os) : false; } -simdjson_warn_unused -inline error_code document::allocate(size_t capacity) noexcept { - if (capacity == 0) { - string_buf.reset(); - tape.reset(); - allocated_capacity = 0; - return SUCCESS; - } +inline simdjson_result parser::read_file(const std::string &path) noexcept { + // Open the file + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + std::FILE *fp = std::fopen(path.c_str(), "rb"); + SIMDJSON_POP_DISABLE_WARNINGS - // a pathological input like "[[[[..." would generate capacity tape elements, so - // need a capacity of at least capacity + 1, but it is also possible to do - // worse with "[7,7,7,7,6,7,7,7,6,7,7,6,[7,7,7,7,6,7,7,7,6,7,7,6,7,7,7,7,7,7,6" - //where capacity + 1 tape elements are - // generated, see issue https://github.com/simdjson/simdjson/issues/345 - size_t tape_capacity = SIMDJSON_ROUNDUP_N(capacity + 3, 64); - // a document with only zero-length strings... could have capacity/3 string - // and we would need capacity/3 * 5 bytes on the string buffer - size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * capacity / 3 + SIMDJSON_PADDING, 64); - string_buf.reset( new (std::nothrow) uint8_t[string_capacity]); - tape.reset(new (std::nothrow) uint64_t[tape_capacity]); - if(!(string_buf && tape)) { - allocated_capacity = 0; - string_buf.reset(); - tape.reset(); - return MEMALLOC; + if (fp == nullptr) { + return IO_ERROR; } - // Technically the allocated_capacity might be larger than capacity - // so the next line is pessimistic. - allocated_capacity = capacity; - return SUCCESS; -} -inline bool document::dump_raw_tape(std::ostream &os) const noexcept { - uint32_t string_length; - size_t tape_idx = 0; - uint64_t tape_val = tape[tape_idx]; - uint8_t type = uint8_t(tape_val >> 56); - os << tape_idx << " : " << type; - tape_idx++; - size_t how_many = 0; - if (type == 'r') { - how_many = size_t(tape_val & internal::JSON_VALUE_MASK); - } else { - // Error: no starting root node? - return false; + // Get the file size + int ret; +#if SIMDJSON_VISUAL_STUDIO && !SIMDJSON_IS_32BITS + ret = _fseeki64(fp, 0, SEEK_END); +#else + ret = std::fseek(fp, 0, SEEK_END); +#endif // _WIN64 + if(ret < 0) { + std::fclose(fp); + return IO_ERROR; } - os << "\t// pointing to " << how_many << " (right after last node)\n"; - uint64_t payload; - for (; tape_idx < how_many; tape_idx++) { - os << tape_idx << " : "; - tape_val = tape[tape_idx]; - payload = tape_val & internal::JSON_VALUE_MASK; - type = uint8_t(tape_val >> 56); - switch (type) { - case '"': // we have a string - os << "string \""; - std::memcpy(&string_length, string_buf.get() + payload, sizeof(uint32_t)); - os << internal::escape_json_string(std::string_view( - reinterpret_cast(string_buf.get() + payload + sizeof(uint32_t)), - string_length - )); - os << '"'; - os << '\n'; - break; - case 'l': // we have a long int - if (tape_idx + 1 >= how_many) { - return false; - } - os << "integer " << static_cast(tape[++tape_idx]) << "\n"; - break; - case 'u': // we have a long uint - if (tape_idx + 1 >= how_many) { - return false; - } - os << "unsigned integer " << tape[++tape_idx] << "\n"; - break; - case 'd': // we have a double - os << "float "; - if (tape_idx + 1 >= how_many) { - return false; - } - double answer; - std::memcpy(&answer, &tape[++tape_idx], sizeof(answer)); - os << answer << '\n'; - break; - case 'n': // we have a null - os << "null\n"; - break; - case 't': // we have a true - os << "true\n"; - break; - case 'f': // we have a false - os << "false\n"; - break; - case '{': // we have an object - os << "{\t// pointing to next tape location " << uint32_t(payload) - << " (first node after the scope), " - << " saturated count " - << ((payload >> 32) & internal::JSON_COUNT_MASK)<< "\n"; - break; case '}': // we end an object - os << "}\t// pointing to previous tape location " << uint32_t(payload) - << " (start of the scope)\n"; - break; - case '[': // we start an array - os << "[\t// pointing to next tape location " << uint32_t(payload) - << " (first node after the scope), " - << " saturated count " - << ((payload >> 32) & internal::JSON_COUNT_MASK)<< "\n"; - break; - case ']': // we end an array - os << "]\t// pointing to previous tape location " << uint32_t(payload) - << " (start of the scope)\n"; - break; - case 'r': // we start and end with the root node - // should we be hitting the root node? - return false; - default: - return false; - } +#if SIMDJSON_VISUAL_STUDIO && !SIMDJSON_IS_32BITS + __int64 len = _ftelli64(fp); + if(len == -1L) { + std::fclose(fp); + return IO_ERROR; } - tape_val = tape[tape_idx]; - payload = tape_val & internal::JSON_VALUE_MASK; - type = uint8_t(tape_val >> 56); - os << tape_idx << " : " << type << "\t// pointing to " << payload - << " (start root)\n"; - return true; -} - -} // namespace dom -} // namespace simdjson - -#endif // SIMDJSON_INLINE_DOCUMENT_H -/* end file include/simdjson/dom/document-inl.h */ -/* begin file include/simdjson/dom/object-inl.h */ -#ifndef SIMDJSON_INLINE_OBJECT_H -#define SIMDJSON_INLINE_OBJECT_H - -#include -#include +#else + long len = std::ftell(fp); + if((len < 0) || (len == LONG_MAX)) { + std::fclose(fp); + return IO_ERROR; + } +#endif -namespace simdjson { + // Make sure we have enough capacity to load the file + if (_loaded_bytes_capacity < size_t(len)) { + loaded_bytes.reset( internal::allocate_padded_buffer(len) ); + if (!loaded_bytes) { + std::fclose(fp); + return MEMALLOC; + } + _loaded_bytes_capacity = len; + } -// -// simdjson_result inline implementation -// -simdjson_inline simdjson_result::simdjson_result() noexcept - : internal::simdjson_result_base() {} -simdjson_inline simdjson_result::simdjson_result(dom::object value) noexcept - : internal::simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : internal::simdjson_result_base(error) {} + // Read the string + std::rewind(fp); + size_t bytes_read = std::fread(loaded_bytes.get(), 1, len, fp); + if (std::fclose(fp) != 0 || bytes_read != size_t(len)) { + return IO_ERROR; + } -inline simdjson_result simdjson_result::operator[](std::string_view key) const noexcept { - if (error()) { return error(); } - return first[key]; -} -inline simdjson_result simdjson_result::operator[](const char *key) const noexcept { - if (error()) { return error(); } - return first[key]; -} -inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) const noexcept { - if (error()) { return error(); } - return first.at_pointer(json_pointer); -} -inline simdjson_result simdjson_result::at_key(std::string_view key) const noexcept { - if (error()) { return error(); } - return first.at_key(key); -} -inline simdjson_result simdjson_result::at_key_case_insensitive(std::string_view key) const noexcept { - if (error()) { return error(); } - return first.at_key_case_insensitive(key); + return bytes_read; } -#if SIMDJSON_EXCEPTIONS - -inline dom::object::iterator simdjson_result::begin() const noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first.begin(); -} -inline dom::object::iterator simdjson_result::end() const noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first.end(); +inline simdjson_result parser::load(const std::string &path) & noexcept { + size_t len; + auto _error = read_file(path).get(len); + if (_error) { return _error; } + return parse(loaded_bytes.get(), len, false); } -inline size_t simdjson_result::size() const noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first.size(); + +inline simdjson_result parser::load_many(const std::string &path, size_t batch_size) noexcept { + size_t len; + auto _error = read_file(path).get(len); + if (_error) { return _error; } + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + return document_stream(*this, reinterpret_cast(loaded_bytes.get()), len, batch_size); } -#endif // SIMDJSON_EXCEPTIONS +inline simdjson_result parser::parse_into_document(document& provided_doc, const uint8_t *buf, size_t len, bool realloc_if_needed) & noexcept { + // Important: we need to ensure that document has enough capacity. + // Important: It is possible that provided_doc is actually the internal 'doc' within the parser!!! + error_code _error = ensure_capacity(provided_doc, len); + if (_error) { return _error; } + if (realloc_if_needed) { + // Make sure we have enough capacity to copy len bytes + if (!loaded_bytes || _loaded_bytes_capacity < len) { + loaded_bytes.reset( internal::allocate_padded_buffer(len) ); + if (!loaded_bytes) { + return MEMALLOC; + } + _loaded_bytes_capacity = len; + } + std::memcpy(static_cast(loaded_bytes.get()), buf, len); + } + _error = implementation->parse(realloc_if_needed ? reinterpret_cast(loaded_bytes.get()): buf, len, provided_doc); -namespace dom { + if (_error) { return _error; } -// -// object inline implementation -// -simdjson_inline object::object() noexcept : tape{} {} -simdjson_inline object::object(const internal::tape_ref &_tape) noexcept : tape{_tape} { } -inline object::iterator object::begin() const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - return internal::tape_ref(tape.doc, tape.json_index + 1); -} -inline object::iterator object::end() const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - return internal::tape_ref(tape.doc, tape.after_element() - 1); -} -inline size_t object::size() const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - return tape.scope_count(); + return provided_doc.root(); } -inline simdjson_result object::operator[](std::string_view key) const noexcept { - return at_key(key); +simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const char *buf, size_t len, bool realloc_if_needed) & noexcept { + return parse_into_document(provided_doc, reinterpret_cast(buf), len, realloc_if_needed); } -inline simdjson_result object::operator[](const char *key) const noexcept { - return at_key(key); +simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const std::string &s) & noexcept { + return parse_into_document(provided_doc, s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING); } -inline simdjson_result object::at_pointer(std::string_view json_pointer) const noexcept { - SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 - if(json_pointer.empty()) { // an empty string means that we return the current node - return element(this->tape); // copy the current node - } else if(json_pointer[0] != '/') { // otherwise there is an error - return INVALID_JSON_POINTER; - } - json_pointer = json_pointer.substr(1); - size_t slash = json_pointer.find('/'); - std::string_view key = json_pointer.substr(0, slash); - // Grab the child with the given key - simdjson_result child; - - // If there is an escape character in the key, unescape it and then get the child. - size_t escape = key.find('~'); - if (escape != std::string_view::npos) { - // Unescape the key - std::string unescaped(key); - do { - switch (unescaped[escape+1]) { - case '0': - unescaped.replace(escape, 2, "~"); - break; - case '1': - unescaped.replace(escape, 2, "/"); - break; - default: - return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); - } - escape = unescaped.find('~', escape+1); - } while (escape != std::string::npos); - child = at_key(unescaped); - } else { - child = at_key(key); - } - if(child.error()) { - return child; // we do not continue if there was an error - } - // If there is a /, we have to recurse and look up more of the path - if (slash != std::string_view::npos) { - child = child.at_pointer(json_pointer.substr(slash)); - } - return child; +simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const padded_string &s) & noexcept { + return parse_into_document(provided_doc, s.data(), s.length(), false); } -inline simdjson_result object::at_key(std::string_view key) const noexcept { - iterator end_field = end(); - for (iterator field = begin(); field != end_field; ++field) { - if (field.key_equals(key)) { - return field.value(); - } - } - return NO_SUCH_FIELD; -} -// In case you wonder why we need this, please see -// https://github.com/simdjson/simdjson/issues/323 -// People do seek keys in a case-insensitive manner. -inline simdjson_result object::at_key_case_insensitive(std::string_view key) const noexcept { - iterator end_field = end(); - for (iterator field = begin(); field != end_field; ++field) { - if (field.key_equals_case_insensitive(key)) { - return field.value(); - } - } - return NO_SUCH_FIELD; + +inline simdjson_result parser::parse(const uint8_t *buf, size_t len, bool realloc_if_needed) & noexcept { + return parse_into_document(doc, buf, len, realloc_if_needed); } -// -// object::iterator inline implementation -// -simdjson_inline object::iterator::iterator(const internal::tape_ref &_tape) noexcept : tape{_tape} { } -inline const key_value_pair object::iterator::operator*() const noexcept { - return key_value_pair(key(), value()); +simdjson_inline simdjson_result parser::parse(const char *buf, size_t len, bool realloc_if_needed) & noexcept { + return parse(reinterpret_cast(buf), len, realloc_if_needed); } -inline bool object::iterator::operator!=(const object::iterator& other) const noexcept { - return tape.json_index != other.tape.json_index; +simdjson_inline simdjson_result parser::parse(const std::string &s) & noexcept { + return parse(s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING); } -inline bool object::iterator::operator==(const object::iterator& other) const noexcept { - return tape.json_index == other.tape.json_index; +simdjson_inline simdjson_result parser::parse(const padded_string &s) & noexcept { + return parse(s.data(), s.length(), false); } -inline bool object::iterator::operator<(const object::iterator& other) const noexcept { - return tape.json_index < other.tape.json_index; +simdjson_inline simdjson_result parser::parse(const padded_string_view &v) & noexcept { + return parse(v.data(), v.length(), false); } -inline bool object::iterator::operator<=(const object::iterator& other) const noexcept { - return tape.json_index <= other.tape.json_index; + +inline simdjson_result parser::parse_many(const uint8_t *buf, size_t len, size_t batch_size) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + return document_stream(*this, buf, len, batch_size); } -inline bool object::iterator::operator>=(const object::iterator& other) const noexcept { - return tape.json_index >= other.tape.json_index; +inline simdjson_result parser::parse_many(const char *buf, size_t len, size_t batch_size) noexcept { + return parse_many(reinterpret_cast(buf), len, batch_size); } -inline bool object::iterator::operator>(const object::iterator& other) const noexcept { - return tape.json_index > other.tape.json_index; +inline simdjson_result parser::parse_many(const std::string &s, size_t batch_size) noexcept { + return parse_many(s.data(), s.length(), batch_size); } -inline object::iterator& object::iterator::operator++() noexcept { - tape.json_index++; - tape.json_index = tape.after_element(); - return *this; +inline simdjson_result parser::parse_many(const padded_string &s, size_t batch_size) noexcept { + return parse_many(s.data(), s.length(), batch_size); } -inline object::iterator object::iterator::operator++(int) noexcept { - object::iterator out = *this; - ++*this; - return out; + +simdjson_inline size_t parser::capacity() const noexcept { + return implementation ? implementation->capacity() : 0; } -inline std::string_view object::iterator::key() const noexcept { - return tape.get_string_view(); +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; } -inline uint32_t object::iterator::key_length() const noexcept { - return tape.get_string_length(); +simdjson_inline size_t parser::max_depth() const noexcept { + return implementation ? implementation->max_depth() : DEFAULT_MAX_DEPTH; } -inline const char* object::iterator::key_c_str() const noexcept { - return reinterpret_cast(&tape.doc->string_buf[size_t(tape.tape_value()) + sizeof(uint32_t)]); + +simdjson_warn_unused +inline error_code parser::allocate(size_t capacity, size_t max_depth) noexcept { + // + // Reallocate implementation if needed + // + error_code err; + if (implementation) { + err = implementation->allocate(capacity, max_depth); + } else { + err = simdjson::get_active_implementation()->create_dom_parser_implementation(capacity, max_depth, implementation); + } + if (err) { return err; } + return SUCCESS; } -inline element object::iterator::value() const noexcept { - return element(internal::tape_ref(tape.doc, tape.json_index + 1)); + +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +simdjson_warn_unused +inline bool parser::allocate_capacity(size_t capacity, size_t max_depth) noexcept { + return !allocate(capacity, max_depth); } +#endif // SIMDJSON_DISABLE_DEPRECATED_API -/** - * Design notes: - * Instead of constructing a string_view and then comparing it with a - * user-provided strings, it is probably more performant to have dedicated - * functions taking as a parameter the string we want to compare against - * and return true when they are equal. That avoids the creation of a temporary - * std::string_view. Though it is possible for the compiler to avoid entirely - * any overhead due to string_view, relying too much on compiler magic is - * problematic: compiler magic sometimes fail, and then what do you do? - * Also, enticing users to rely on high-performance function is probably better - * on the long run. - */ +inline error_code parser::ensure_capacity(size_t desired_capacity) noexcept { + return ensure_capacity(doc, desired_capacity); +} -inline bool object::iterator::key_equals(std::string_view o) const noexcept { - // We use the fact that the key length can be computed quickly - // without access to the string buffer. - const uint32_t len = key_length(); - if(o.size() == len) { - // We avoid construction of a temporary string_view instance. - return (memcmp(o.data(), key_c_str(), len) == 0); + +inline error_code parser::ensure_capacity(document& target_document, size_t desired_capacity) noexcept { + // 1. It is wasteful to allocate a document and a parser for documents spanning less than MINIMAL_DOCUMENT_CAPACITY bytes. + // 2. If we allow desired_capacity = 0 then it is possible to exit this function with implementation == nullptr. + if(desired_capacity < MINIMAL_DOCUMENT_CAPACITY) { desired_capacity = MINIMAL_DOCUMENT_CAPACITY; } + // If we don't have enough capacity, (try to) automatically bump it. + // If the document needs allocation, do it too. + // Both in one if statement to minimize unlikely branching. + // + // Note: we must make sure that this function is called if capacity() == 0. We do so because we + // ensure that desired_capacity > 0. + if (simdjson_unlikely(capacity() < desired_capacity || target_document.capacity() < desired_capacity)) { + if (desired_capacity > max_capacity()) { + return error = CAPACITY; + } + error_code err1 = target_document.capacity() < desired_capacity ? target_document.allocate(desired_capacity) : SUCCESS; + error_code err2 = capacity() < desired_capacity ? allocate(desired_capacity, max_depth()) : SUCCESS; + if(err1 != SUCCESS) { return error = err1; } + if(err2 != SUCCESS) { return error = err2; } } - return false; + return SUCCESS; } -inline bool object::iterator::key_equals_case_insensitive(std::string_view o) const noexcept { - // We use the fact that the key length can be computed quickly - // without access to the string buffer. - const uint32_t len = key_length(); - if(o.size() == len) { - // See For case-insensitive string comparisons, avoid char-by-char functions - // https://lemire.me/blog/2020/04/30/for-case-insensitive-string-comparisons-avoid-char-by-char-functions/ - // Note that it might be worth rolling our own strncasecmp function, with vectorization. - return (simdjson_strncasecmp(o.data(), key_c_str(), len) == 0); +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity > MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = MINIMAL_DOCUMENT_CAPACITY; } - return false; } -// -// key_value_pair inline implementation -// -inline key_value_pair::key_value_pair(std::string_view _key, element _value) noexcept : - key(_key), value(_value) {} } // namespace dom - } // namespace simdjson -#if defined(__cpp_lib_ranges) -static_assert(std::ranges::view); -static_assert(std::ranges::sized_range); -#if SIMDJSON_EXCEPTIONS -static_assert(std::ranges::view>); -static_assert(std::ranges::sized_range>); -#endif // SIMDJSON_EXCEPTIONS -#endif // defined(__cpp_lib_ranges) - -#endif // SIMDJSON_INLINE_OBJECT_H -/* end file include/simdjson/dom/object-inl.h */ -/* begin file include/simdjson/dom/parsedjson_iterator-inl.h */ -#ifndef SIMDJSON_INLINE_PARSEDJSON_ITERATOR_H -#define SIMDJSON_INLINE_PARSEDJSON_ITERATOR_H - -#include - -#ifndef SIMDJSON_DISABLE_DEPRECATED_API +#endif // SIMDJSON_PARSER_INL_H +/* end file simdjson/dom/parser-inl.h */ namespace simdjson { -// VS2017 reports deprecated warnings when you define a deprecated class's methods. -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_DEPRECATED_WARNING +// +// C API (json_parse and build_parsed_json) declarations +// -// Because of template weirdness, the actual class definition is inline in the document class -simdjson_warn_unused bool dom::parser::Iterator::is_ok() const { - return location < tape_length; +#ifndef SIMDJSON_DISABLE_DEPRECATED_API +[[deprecated("Use parser.parse() instead")]] +inline int json_parse(const uint8_t *buf, size_t len, dom::parser &parser, bool realloc_if_needed = true) noexcept { + error_code code = parser.parse(buf, len, realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return code; } - -// useful for debugging purposes -size_t dom::parser::Iterator::get_tape_location() const { - return location; +[[deprecated("Use parser.parse() instead")]] +inline int json_parse(const char *buf, size_t len, dom::parser &parser, bool realloc_if_needed = true) noexcept { + error_code code = parser.parse(buf, len, realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return code; } - -// useful for debugging purposes -size_t dom::parser::Iterator::get_tape_length() const { - return tape_length; +[[deprecated("Use parser.parse() instead")]] +inline int json_parse(const std::string &s, dom::parser &parser, bool realloc_if_needed = true) noexcept { + error_code code = parser.parse(s.data(), s.length(), realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return code; } - -// returns the current depth (start at 1 with 0 reserved for the fictitious root -// node) -size_t dom::parser::Iterator::get_depth() const { - return depth; +[[deprecated("Use parser.parse() instead")]] +inline int json_parse(const padded_string &s, dom::parser &parser) noexcept { + error_code code = parser.parse(s).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return code; } -// A scope is a series of nodes at the same depth, typically it is either an -// object ({) or an array ([). The root node has type 'r'. -uint8_t dom::parser::Iterator::get_scope_type() const { - return depth_index[depth].scope_type; +[[deprecated("Use parser.parse() instead")]] +simdjson_warn_unused inline dom::parser build_parsed_json(const uint8_t *buf, size_t len, bool realloc_if_needed = true) noexcept { + dom::parser parser; + error_code code = parser.parse(buf, len, realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return parser; +} +[[deprecated("Use parser.parse() instead")]] +simdjson_warn_unused inline dom::parser build_parsed_json(const char *buf, size_t len, bool realloc_if_needed = true) noexcept { + dom::parser parser; + error_code code = parser.parse(buf, len, realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return parser; +} +[[deprecated("Use parser.parse() instead")]] +simdjson_warn_unused inline dom::parser build_parsed_json(const std::string &s, bool realloc_if_needed = true) noexcept { + dom::parser parser; + error_code code = parser.parse(s.data(), s.length(), realloc_if_needed).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return parser; +} +[[deprecated("Use parser.parse() instead")]] +simdjson_warn_unused inline dom::parser build_parsed_json(const padded_string &s) noexcept { + dom::parser parser; + error_code code = parser.parse(s).error(); + // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid + // bits in the parser instead of heeding the result code. The normal parser unsets those in + // anticipation of making the error code ephemeral. + // Here we put the code back into the parser, until we've removed this method. + parser.valid = code == SUCCESS; + parser.error = code; + return parser; } +#endif // SIMDJSON_DISABLE_DEPRECATED_API -bool dom::parser::Iterator::move_forward() { - if (location + 1 >= tape_length) { - return false; // we are at the end! - } +/** @private We do not want to allow implicit conversion from C string to std::string. */ +int json_parse(const char *buf, dom::parser &parser) noexcept = delete; +/** @private We do not want to allow implicit conversion from C string to std::string. */ +dom::parser build_parsed_json(const char *buf) noexcept = delete; - if ((current_type == '[') || (current_type == '{')) { - // We are entering a new scope - depth++; - assert(depth < max_depth); - depth_index[depth].start_of_scope = location; - depth_index[depth].scope_type = current_type; - } else if ((current_type == ']') || (current_type == '}')) { - // Leaving a scope. - depth--; - } else if (is_number()) { - // these types use 2 locations on the tape, not just one. - location += 1; - } +} // namespace simdjson - location += 1; - current_val = doc.tape[location]; - current_type = uint8_t(current_val >> 56); - return true; -} +#endif // SIMDJSON_DOM_JSONPARSER_H +/* end file simdjson/dom/jsonparser.h */ +/* including simdjson/dom/parsedjson.h: #include "simdjson/dom/parsedjson.h" */ +/* begin file simdjson/dom/parsedjson.h */ +// TODO Remove this -- deprecated API and files -void dom::parser::Iterator::move_to_value() { - // assume that we are on a key, so move by 1. - location += 1; - current_val = doc.tape[location]; - current_type = uint8_t(current_val >> 56); -} +#ifndef SIMDJSON_DOM_PARSEDJSON_H +#define SIMDJSON_DOM_PARSEDJSON_H -bool dom::parser::Iterator::move_to_key(const char *key) { - if (down()) { - do { - const bool right_key = (strcmp(get_string(), key) == 0); - move_to_value(); - if (right_key) { - return true; - } - } while (next()); - up(); - } - return false; -} +/* skipped duplicate #include "simdjson/dom/base.h" */ -bool dom::parser::Iterator::move_to_key_insensitive( - const char *key) { - if (down()) { - do { - const bool right_key = (simdjson_strcasecmp(get_string(), key) == 0); - move_to_value(); - if (right_key) { - return true; - } - } while (next()); - up(); - } - return false; -} +namespace simdjson { -bool dom::parser::Iterator::move_to_key(const char *key, - uint32_t length) { - if (down()) { - do { - bool right_key = ((get_string_length() == length) && - (memcmp(get_string(), key, length) == 0)); - move_to_value(); - if (right_key) { - return true; - } - } while (next()); - up(); - } - return false; -} +/** + * @deprecated Use `dom::parser` instead. + */ +using ParsedJson [[deprecated("Use dom::parser instead")]] = dom::parser; -bool dom::parser::Iterator::move_to_index(uint32_t index) { - if (down()) { - uint32_t i = 0; - for (; i < index; i++) { - if (!next()) { - break; - } - } - if (i == index) { - return true; - } - up(); - } - return false; -} +} // namespace simdjson -bool dom::parser::Iterator::prev() { - size_t target_location = location; - to_start_scope(); - size_t npos = location; - if (target_location == npos) { - return false; // we were already at the start - } - size_t oldnpos; - // we have that npos < target_location here - do { - oldnpos = npos; - if ((current_type == '[') || (current_type == '{')) { - // we need to jump - npos = uint32_t(current_val); - } else { - npos = npos + ((current_type == 'd' || current_type == 'l') ? 2 : 1); - } - } while (npos < target_location); - location = oldnpos; - current_val = doc.tape[location]; - current_type = uint8_t(current_val >> 56); - return true; -} +#endif // SIMDJSON_DOM_PARSEDJSON_H +/* end file simdjson/dom/parsedjson.h */ +/* including simdjson/dom/parsedjson_iterator.h: #include "simdjson/dom/parsedjson_iterator.h" */ +/* begin file simdjson/dom/parsedjson_iterator.h */ +// TODO Remove this -- deprecated API and files -bool dom::parser::Iterator::up() { - if (depth == 1) { - return false; // don't allow moving back to root - } - to_start_scope(); - // next we just move to the previous value - depth--; - location -= 1; - current_val = doc.tape[location]; - current_type = uint8_t(current_val >> 56); - return true; -} +#ifndef SIMDJSON_DOM_PARSEDJSON_ITERATOR_H +#define SIMDJSON_DOM_PARSEDJSON_ITERATOR_H -bool dom::parser::Iterator::down() { - if (location + 1 >= tape_length) { - return false; - } - if ((current_type == '[') || (current_type == '{')) { - size_t npos = uint32_t(current_val); - if (npos == location + 2) { - return false; // we have an empty scope - } - depth++; - assert(depth < max_depth); - location = location + 1; - depth_index[depth].start_of_scope = location; - depth_index[depth].scope_type = current_type; - current_val = doc.tape[location]; - current_type = uint8_t(current_val >> 56); - return true; - } - return false; -} +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/parser.h" */ -void dom::parser::Iterator::to_start_scope() { - location = depth_index[depth].start_of_scope; - current_val = doc.tape[location]; - current_type = uint8_t(current_val >> 56); -} +#ifndef SIMDJSON_DISABLE_DEPRECATED_API -bool dom::parser::Iterator::next() { - size_t npos; - if ((current_type == '[') || (current_type == '{')) { - // we need to jump - npos = uint32_t(current_val); - } else { - npos = location + (is_number() ? 2 : 1); - } - uint64_t next_val = doc.tape[npos]; - uint8_t next_type = uint8_t(next_val >> 56); - if ((next_type == ']') || (next_type == '}')) { - return false; // we reached the end of the scope - } - location = npos; - current_val = next_val; - current_type = next_type; - return true; -} -dom::parser::Iterator::Iterator(const dom::parser &pj) noexcept(false) - : doc(pj.doc) -{ -#if SIMDJSON_EXCEPTIONS - if (!pj.valid) { throw simdjson_error(pj.error); } -#else - if (!pj.valid) { return; } // abort() usage is forbidden in the library -#endif +namespace simdjson { +/** @private **/ +class [[deprecated("Use the new DOM navigation API instead (see doc/basics.md)")]] dom::parser::Iterator { +public: + inline Iterator(const dom::parser &parser) noexcept(false); + inline Iterator(const Iterator &o) noexcept; + inline ~Iterator() noexcept; - max_depth = pj.max_depth(); - depth_index = new scopeindex_t[max_depth + 1]; - depth_index[0].start_of_scope = location; - current_val = doc.tape[location++]; - current_type = uint8_t(current_val >> 56); - depth_index[0].scope_type = current_type; - tape_length = size_t(current_val & internal::JSON_VALUE_MASK); - if (location < tape_length) { - // If we make it here, then depth_capacity must >=2, but the compiler - // may not know this. - current_val = doc.tape[location]; - current_type = uint8_t(current_val >> 56); - depth++; - assert(depth < max_depth); - depth_index[depth].start_of_scope = location; - depth_index[depth].scope_type = current_type; - } -} -dom::parser::Iterator::Iterator( - const dom::parser::Iterator &o) noexcept - : doc(o.doc), - max_depth(o.depth), - depth(o.depth), - location(o.location), - tape_length(o.tape_length), - current_type(o.current_type), - current_val(o.current_val) -{ - depth_index = new scopeindex_t[max_depth+1]; - std::memcpy(depth_index, o.depth_index, (depth + 1) * sizeof(depth_index[0])); -} + inline Iterator& operator=(const Iterator&) = delete; -dom::parser::Iterator::~Iterator() noexcept { - if (depth_index) { delete[] depth_index; } -} + inline bool is_ok() const; -bool dom::parser::Iterator::print(std::ostream &os, bool escape_strings) const { - if (!is_ok()) { - return false; - } - switch (current_type) { - case '"': // we have a string - os << '"'; - if (escape_strings) { - os << internal::escape_json_string(std::string_view(get_string(), get_string_length())); - } else { - // was: os << get_string();, but given that we can include null chars, we - // have to do something crazier: - std::copy(get_string(), get_string() + get_string_length(), std::ostream_iterator(os)); - } - os << '"'; - break; - case 'l': // we have a long int - os << get_integer(); - break; - case 'u': - os << get_unsigned_integer(); - break; - case 'd': - os << get_double(); - break; - case 'n': // we have a null - os << "null"; - break; - case 't': // we have a true - os << "true"; - break; - case 'f': // we have a false - os << "false"; - break; - case '{': // we have an object - case '}': // we end an object - case '[': // we start an array - case ']': // we end an array - os << char(current_type); - break; - default: - return false; - } - return true; -} + // useful for debugging purposes + inline size_t get_tape_location() const; -bool dom::parser::Iterator::move_to(const char *pointer, - uint32_t length) { - char *new_pointer = nullptr; - if (pointer[0] == '#') { - // Converting fragment representation to string representation - new_pointer = new char[length]; - uint32_t new_length = 0; - for (uint32_t i = 1; i < length; i++) { - if (pointer[i] == '%' && pointer[i + 1] == 'x') { -#if __cpp_exceptions - try { -#endif - int fragment = - std::stoi(std::string(&pointer[i + 2], 2), nullptr, 16); - if (fragment == '\\' || fragment == '"' || (fragment <= 0x1F)) { - // escaping the character - new_pointer[new_length] = '\\'; - new_length++; - } - new_pointer[new_length] = char(fragment); - i += 3; -#if __cpp_exceptions - } catch (std::invalid_argument &) { - delete[] new_pointer; - return false; // the fragment is invalid - } -#endif - } else { - new_pointer[new_length] = pointer[i]; - } - new_length++; - } - length = new_length; - pointer = new_pointer; - } + // useful for debugging purposes + inline size_t get_tape_length() const; - // saving the current state - size_t depth_s = depth; - size_t location_s = location; - uint8_t current_type_s = current_type; - uint64_t current_val_s = current_val; + // returns the current depth (start at 1 with 0 reserved for the fictitious + // root node) + inline size_t get_depth() const; - rewind(); // The json pointer is used from the root of the document. + // A scope is a series of nodes at the same depth, typically it is either an + // object ({) or an array ([). The root node has type 'r'. + inline uint8_t get_scope_type() const; - bool found = relative_move_to(pointer, length); - delete[] new_pointer; + // move forward in document order + inline bool move_forward(); - if (!found) { - // since the pointer has found nothing, we get back to the original - // position. - depth = depth_s; - location = location_s; - current_type = current_type_s; - current_val = current_val_s; + // retrieve the character code of what we're looking at: + // [{"slutfn are the possibilities + inline uint8_t get_type() const { + return current_type; // short functions should be inlined! } - return found; -} + // get the int64_t value at this node; valid only if get_type is "l" + inline int64_t get_integer() const; -bool dom::parser::Iterator::relative_move_to(const char *pointer, - uint32_t length) { - if (length == 0) { - // returns the whole document - return true; - } + // get the value as uint64; valid only if if get_type is "u" + inline uint64_t get_unsigned_integer() const; - if (pointer[0] != '/') { - // '/' must be the first character - return false; - } + // get the string value at this node (NULL ended); valid only if get_type is " + // note that tabs, and line endings are escaped in the returned value (see + // print_with_escapes) return value is valid UTF-8, it may contain NULL chars + // within the string: get_string_length determines the true string length. + inline const char *get_string() const; - // finding the key in an object or the index in an array - std::string key_or_index; - uint32_t offset = 1; + // return the length of the string in bytes + inline uint32_t get_string_length() const; - // checking for the "-" case - if (is_array() && pointer[1] == '-') { - if (length != 2) { - // the pointer must be exactly "/-" - // there can't be anything more after '-' as an index - return false; - } - key_or_index = '-'; - offset = length; // will skip the loop coming right after - } + // get the double value at this node; valid only if + // get_type() is "d" + inline double get_double() const; - // We either transform the first reference token to a valid json key - // or we make sure it is a valid index in an array. - for (; offset < length; offset++) { - if (pointer[offset] == '/') { - // beginning of the next key or index - break; - } - if (is_array() && (pointer[offset] < '0' || pointer[offset] > '9')) { - // the index of an array must be an integer - // we also make sure std::stoi won't discard whitespaces later - return false; - } - if (pointer[offset] == '~') { - // "~1" represents "/" - if (pointer[offset + 1] == '1') { - key_or_index += '/'; - offset++; - continue; - } - // "~0" represents "~" - if (pointer[offset + 1] == '0') { - key_or_index += '~'; - offset++; - continue; - } - } - if (pointer[offset] == '\\') { - if (pointer[offset + 1] == '\\' || pointer[offset + 1] == '"' || - (pointer[offset + 1] <= 0x1F)) { - key_or_index += pointer[offset + 1]; - offset++; - continue; - } - return false; // invalid escaped character - } - if (pointer[offset] == '\"') { - // unescaped quote character. this is an invalid case. - // lets do nothing and assume most pointers will be valid. - // it won't find any corresponding json key anyway. - // return false; - } - key_or_index += pointer[offset]; - } - - bool found = false; - if (is_object()) { - if (move_to_key(key_or_index.c_str(), uint32_t(key_or_index.length()))) { - found = relative_move_to(pointer + offset, length - offset); - } - } else if (is_array()) { - if (key_or_index == "-") { // handling "-" case first - if (down()) { - while (next()) - ; // moving to the end of the array - // moving to the nonexistent value right after... - size_t npos; - if ((current_type == '[') || (current_type == '{')) { - // we need to jump - npos = uint32_t(current_val); - } else { - npos = - location + ((current_type == 'd' || current_type == 'l') ? 2 : 1); - } - location = npos; - current_val = doc.tape[npos]; - current_type = uint8_t(current_val >> 56); - return true; // how could it fail ? - } - } else { // regular numeric index - // The index can't have a leading '0' - if (key_or_index[0] == '0' && key_or_index.length() > 1) { - return false; - } - // it cannot be empty - if (key_or_index.length() == 0) { - return false; - } - // we already checked the index contains only valid digits - uint32_t index = std::stoi(key_or_index); - if (move_to_index(index)) { - found = relative_move_to(pointer + offset, length - offset); - } - } - } - - return found; -} - -SIMDJSON_POP_DISABLE_WARNINGS -} // namespace simdjson - -#endif // SIMDJSON_DISABLE_DEPRECATED_API + inline bool is_object_or_array() const { return is_object() || is_array(); } + inline bool is_object() const { return get_type() == '{'; } -#endif // SIMDJSON_INLINE_PARSEDJSON_ITERATOR_H -/* end file include/simdjson/dom/parsedjson_iterator-inl.h */ -/* begin file include/simdjson/dom/parser-inl.h */ -#ifndef SIMDJSON_INLINE_PARSER_H -#define SIMDJSON_INLINE_PARSER_H + inline bool is_array() const { return get_type() == '['; } -#include -#include + inline bool is_string() const { return get_type() == '"'; } -namespace simdjson { -namespace dom { + // Returns true if the current type of the node is an signed integer. + // You can get its value with `get_integer()`. + inline bool is_integer() const { return get_type() == 'l'; } -// -// parser inline implementation -// -simdjson_inline parser::parser(size_t max_capacity) noexcept - : _max_capacity{max_capacity}, - loaded_bytes(nullptr) { -} -simdjson_inline parser::parser(parser &&other) noexcept = default; -simdjson_inline parser &parser::operator=(parser &&other) noexcept = default; + // Returns true if the current type of the node is an unsigned integer. + // You can get its value with `get_unsigned_integer()`. + // + // NOTE: + // Only a large value, which is out of range of a 64-bit signed integer, is + // represented internally as an unsigned node. On the other hand, a typical + // positive integer, such as 1, 42, or 1000000, is as a signed node. + // Be aware this function returns false for a signed node. + inline bool is_unsigned_integer() const { return get_type() == 'u'; } + // Returns true if the current type of the node is a double floating-point number. + inline bool is_double() const { return get_type() == 'd'; } + // Returns true if the current type of the node is a number (integer or floating-point). + inline bool is_number() const { + return is_integer() || is_unsigned_integer() || is_double(); + } + // Returns true if the current type of the node is a bool with true value. + inline bool is_true() const { return get_type() == 't'; } + // Returns true if the current type of the node is a bool with false value. + inline bool is_false() const { return get_type() == 'f'; } + // Returns true if the current type of the node is null. + inline bool is_null() const { return get_type() == 'n'; } + // Returns true if the type byte represents an object of an array + static bool is_object_or_array(uint8_t type) { + return ((type == '[') || (type == '{')); + } -inline bool parser::is_valid() const noexcept { return valid; } -inline int parser::get_error_code() const noexcept { return error; } -inline std::string parser::get_error_message() const noexcept { return error_message(error); } + // when at {, go one level deep, looking for a given key + // if successful, we are left pointing at the value, + // if not, we are still pointing at the object ({) + // (in case of repeated keys, this only finds the first one). + // We seek the key using C's strcmp so if your JSON strings contain + // NULL chars, this would trigger a false positive: if you expect that + // to be the case, take extra precautions. + // Furthermore, we do the comparison character-by-character + // without taking into account Unicode equivalence. + inline bool move_to_key(const char *key); -inline bool parser::dump_raw_tape(std::ostream &os) const noexcept { - return valid ? doc.dump_raw_tape(os) : false; -} + // as above, but case insensitive lookup (strcmpi instead of strcmp) + inline bool move_to_key_insensitive(const char *key); -inline simdjson_result parser::read_file(const std::string &path) noexcept { - // Open the file - SIMDJSON_PUSH_DISABLE_WARNINGS - SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe - std::FILE *fp = std::fopen(path.c_str(), "rb"); - SIMDJSON_POP_DISABLE_WARNINGS + // when at {, go one level deep, looking for a given key + // if successful, we are left pointing at the value, + // if not, we are still pointing at the object ({) + // (in case of repeated keys, this only finds the first one). + // The string we search for can contain NULL values. + // Furthermore, we do the comparison character-by-character + // without taking into account Unicode equivalence. + inline bool move_to_key(const char *key, uint32_t length); - if (fp == nullptr) { - return IO_ERROR; - } + // when at a key location within an object, this moves to the accompanying + // value (located next to it). This is equivalent but much faster than + // calling "next()". + inline void move_to_value(); - // Get the file size - int ret; -#if SIMDJSON_VISUAL_STUDIO && !SIMDJSON_IS_32BITS - ret = _fseeki64(fp, 0, SEEK_END); -#else - ret = std::fseek(fp, 0, SEEK_END); -#endif // _WIN64 - if(ret < 0) { - std::fclose(fp); - return IO_ERROR; - } -#if SIMDJSON_VISUAL_STUDIO && !SIMDJSON_IS_32BITS - __int64 len = _ftelli64(fp); - if(len == -1L) { - std::fclose(fp); - return IO_ERROR; - } -#else - long len = std::ftell(fp); - if((len < 0) || (len == LONG_MAX)) { - std::fclose(fp); - return IO_ERROR; - } -#endif + // when at [, go one level deep, and advance to the given index. + // if successful, we are left pointing at the value, + // if not, we are still pointing at the array ([) + inline bool move_to_index(uint32_t index); - // Make sure we have enough capacity to load the file - if (_loaded_bytes_capacity < size_t(len)) { - loaded_bytes.reset( internal::allocate_padded_buffer(len) ); - if (!loaded_bytes) { - std::fclose(fp); - return MEMALLOC; - } - _loaded_bytes_capacity = len; - } + // Moves the iterator to the value corresponding to the json pointer. + // Always search from the root of the document. + // if successful, we are left pointing at the value, + // if not, we are still pointing the same value we were pointing before the + // call. The json pointer follows the rfc6901 standard's syntax: + // https://tools.ietf.org/html/rfc6901 However, the standard says "If a + // referenced member name is not unique in an object, the member that is + // referenced is undefined, and evaluation fails". Here we just return the + // first corresponding value. The length parameter is the length of the + // jsonpointer string ('pointer'). + inline bool move_to(const char *pointer, uint32_t length); - // Read the string - std::rewind(fp); - size_t bytes_read = std::fread(loaded_bytes.get(), 1, len, fp); - if (std::fclose(fp) != 0 || bytes_read != size_t(len)) { - return IO_ERROR; - } + // Moves the iterator to the value corresponding to the json pointer. + // Always search from the root of the document. + // if successful, we are left pointing at the value, + // if not, we are still pointing the same value we were pointing before the + // call. The json pointer implementation follows the rfc6901 standard's + // syntax: https://tools.ietf.org/html/rfc6901 However, the standard says + // "If a referenced member name is not unique in an object, the member that + // is referenced is undefined, and evaluation fails". Here we just return + // the first corresponding value. + inline bool move_to(const std::string &pointer); - return bytes_read; -} + private: + // Almost the same as move_to(), except it searches from the current + // position. The pointer's syntax is identical, though that case is not + // handled by the rfc6901 standard. The '/' is still required at the + // beginning. However, contrary to move_to(), the URI Fragment Identifier + // Representation is not supported here. Also, in case of failure, we are + // left pointing at the closest value it could reach. For these reasons it + // is private. It exists because it is used by move_to(). + inline bool relative_move_to(const char *pointer, uint32_t length); -inline simdjson_result parser::load(const std::string &path) & noexcept { - size_t len; - auto _error = read_file(path).get(len); - if (_error) { return _error; } - return parse(loaded_bytes.get(), len, false); -} + public: + // throughout return true if we can do the navigation, false + // otherwise -inline simdjson_result parser::load_many(const std::string &path, size_t batch_size) noexcept { - size_t len; - auto _error = read_file(path).get(len); - if (_error) { return _error; } - if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } - return document_stream(*this, reinterpret_cast(loaded_bytes.get()), len, batch_size); -} + // Within a given scope (series of nodes at the same depth within either an + // array or an object), we move forward. + // Thus, given [true, null, {"a":1}, [1,2]], we would visit true, null, { + // and [. At the object ({) or at the array ([), you can issue a "down" to + // visit their content. valid if we're not at the end of a scope (returns + // true). + inline bool next(); -inline simdjson_result parser::parse_into_document(document& provided_doc, const uint8_t *buf, size_t len, bool realloc_if_needed) & noexcept { - // Important: we need to ensure that document has enough capacity. - // Important: It is possible that provided_doc is actually the internal 'doc' within the parser!!! - error_code _error = ensure_capacity(provided_doc, len); - if (_error) { return _error; } - if (realloc_if_needed) { - // Make sure we have enough capacity to copy len bytes - if (!loaded_bytes || _loaded_bytes_capacity < len) { - loaded_bytes.reset( internal::allocate_padded_buffer(len) ); - if (!loaded_bytes) { - return MEMALLOC; - } - _loaded_bytes_capacity = len; - } - std::memcpy(static_cast(loaded_bytes.get()), buf, len); - } - _error = implementation->parse(realloc_if_needed ? reinterpret_cast(loaded_bytes.get()): buf, len, provided_doc); + // Within a given scope (series of nodes at the same depth within either an + // array or an object), we move backward. + // Thus, given [true, null, {"a":1}, [1,2]], we would visit ], }, null, true + // when starting at the end of the scope. At the object ({) or at the array + // ([), you can issue a "down" to visit their content. + // Performance warning: This function is implemented by starting again + // from the beginning of the scope and scanning forward. You should expect + // it to be relatively slow. + inline bool prev(); - if (_error) { return _error; } + // Moves back to either the containing array or object (type { or [) from + // within a contained scope. + // Valid unless we are at the first level of the document + inline bool up(); - return provided_doc.root(); -} + // Valid if we're at a [ or { and it starts a non-empty scope; moves us to + // start of that deeper scope if it not empty. Thus, given [true, null, + // {"a":1}, [1,2]], if we are at the { node, we would move to the "a" node. + inline bool down(); -simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const char *buf, size_t len, bool realloc_if_needed) & noexcept { - return parse_into_document(provided_doc, reinterpret_cast(buf), len, realloc_if_needed); -} -simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const std::string &s) & noexcept { - return parse_into_document(provided_doc, s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING); -} -simdjson_inline simdjson_result parser::parse_into_document(document& provided_doc, const padded_string &s) & noexcept { - return parse_into_document(provided_doc, s.data(), s.length(), false); -} + // move us to the start of our current scope, + // a scope is a series of nodes at the same level + inline void to_start_scope(); + inline void rewind(); -inline simdjson_result parser::parse(const uint8_t *buf, size_t len, bool realloc_if_needed) & noexcept { - return parse_into_document(doc, buf, len, realloc_if_needed); -} -simdjson_inline simdjson_result parser::parse(const char *buf, size_t len, bool realloc_if_needed) & noexcept { - return parse(reinterpret_cast(buf), len, realloc_if_needed); -} -simdjson_inline simdjson_result parser::parse(const std::string &s) & noexcept { - return parse(s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING); -} -simdjson_inline simdjson_result parser::parse(const padded_string &s) & noexcept { - return parse(s.data(), s.length(), false); -} -simdjson_inline simdjson_result parser::parse(const padded_string_view &v) & noexcept { - return parse(v.data(), v.length(), false); -} -inline simdjson_result parser::parse_many(const uint8_t *buf, size_t len, size_t batch_size) noexcept { - if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } - return document_stream(*this, buf, len, batch_size); -} -inline simdjson_result parser::parse_many(const char *buf, size_t len, size_t batch_size) noexcept { - return parse_many(reinterpret_cast(buf), len, batch_size); -} -inline simdjson_result parser::parse_many(const std::string &s, size_t batch_size) noexcept { - return parse_many(s.data(), s.length(), batch_size); -} -inline simdjson_result parser::parse_many(const padded_string &s, size_t batch_size) noexcept { - return parse_many(s.data(), s.length(), batch_size); -} + // print the node we are currently pointing at + inline bool print(std::ostream &os, bool escape_strings = true) const; -simdjson_inline size_t parser::capacity() const noexcept { - return implementation ? implementation->capacity() : 0; -} -simdjson_inline size_t parser::max_capacity() const noexcept { - return _max_capacity; -} -simdjson_inline size_t parser::max_depth() const noexcept { - return implementation ? implementation->max_depth() : DEFAULT_MAX_DEPTH; -} + private: + const document &doc; + size_t max_depth{}; + size_t depth{}; + size_t location{}; // our current location on a tape + size_t tape_length{}; + uint8_t current_type{}; + uint64_t current_val{}; + typedef struct { + size_t start_of_scope; + uint8_t scope_type; + } scopeindex_t; -simdjson_warn_unused -inline error_code parser::allocate(size_t capacity, size_t max_depth) noexcept { - // - // Reallocate implementation if needed - // - error_code err; - if (implementation) { - err = implementation->allocate(capacity, max_depth); - } else { - err = simdjson::get_active_implementation()->create_dom_parser_implementation(capacity, max_depth, implementation); - } - if (err) { return err; } - return SUCCESS; -} + scopeindex_t *depth_index{}; +}; -#ifndef SIMDJSON_DISABLE_DEPRECATED_API -simdjson_warn_unused -inline bool parser::allocate_capacity(size_t capacity, size_t max_depth) noexcept { - return !allocate(capacity, max_depth); -} +} // namespace simdjson #endif // SIMDJSON_DISABLE_DEPRECATED_API -inline error_code parser::ensure_capacity(size_t desired_capacity) noexcept { - return ensure_capacity(doc, desired_capacity); -} - +#endif // SIMDJSON_DOM_PARSEDJSON_ITERATOR_H +/* end file simdjson/dom/parsedjson_iterator.h */ -inline error_code parser::ensure_capacity(document& target_document, size_t desired_capacity) noexcept { - // 1. It is wasteful to allocate a document and a parser for documents spanning less than MINIMAL_DOCUMENT_CAPACITY bytes. - // 2. If we allow desired_capacity = 0 then it is possible to exit this function with implementation == nullptr. - if(desired_capacity < MINIMAL_DOCUMENT_CAPACITY) { desired_capacity = MINIMAL_DOCUMENT_CAPACITY; } - // If we don't have enough capacity, (try to) automatically bump it. - // If the document needs allocation, do it too. - // Both in one if statement to minimize unlikely branching. - // - // Note: we must make sure that this function is called if capacity() == 0. We do so because we - // ensure that desired_capacity > 0. - if (simdjson_unlikely(capacity() < desired_capacity || target_document.capacity() < desired_capacity)) { - if (desired_capacity > max_capacity()) { - return error = CAPACITY; - } - error_code err1 = target_document.capacity() < desired_capacity ? target_document.allocate(desired_capacity) : SUCCESS; - error_code err2 = capacity() < desired_capacity ? allocate(desired_capacity, max_depth()) : SUCCESS; - if(err1 != SUCCESS) { return error = err1; } - if(err2 != SUCCESS) { return error = err2; } - } - return SUCCESS; -} +// Inline functions +/* including simdjson/dom/array-inl.h: #include "simdjson/dom/array-inl.h" */ +/* begin file simdjson/dom/array-inl.h */ +#ifndef SIMDJSON_ARRAY_INL_H +#define SIMDJSON_ARRAY_INL_H -simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { - if(max_capacity > MINIMAL_DOCUMENT_CAPACITY) { - _max_capacity = max_capacity; - } else { - _max_capacity = MINIMAL_DOCUMENT_CAPACITY; - } -} +#include -} // namespace dom -} // namespace simdjson +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/array.h" */ +/* skipped duplicate #include "simdjson/dom/element.h" */ +/* skipped duplicate #include "simdjson/error-inl.h" */ +/* including simdjson/internal/tape_ref-inl.h: #include "simdjson/internal/tape_ref-inl.h" */ +/* begin file simdjson/internal/tape_ref-inl.h */ +#ifndef SIMDJSON_TAPE_REF_INL_H +#define SIMDJSON_TAPE_REF_INL_H -#endif // SIMDJSON_INLINE_PARSER_H -/* end file include/simdjson/dom/parser-inl.h */ -/* begin file include/simdjson/internal/tape_ref-inl.h */ -#ifndef SIMDJSON_INLINE_TAPE_REF_H -#define SIMDJSON_INLINE_TAPE_REF_H +/* skipped duplicate #include "simdjson/dom/document.h" */ +/* skipped duplicate #include "simdjson/internal/tape_ref.h" */ +/* skipped duplicate #include "simdjson/internal/tape_type.h" */ #include namespace simdjson { namespace internal { +constexpr const uint64_t JSON_VALUE_MASK = 0x00FFFFFFFFFFFFFF; +constexpr const uint32_t JSON_COUNT_MASK = 0xFFFFFF; + // // tape_ref inline implementation // @@ -9105,3224 +8143,3083 @@ inline std::string_view internal::tape_ref::get_string_view() const noexcept { } // namespace internal } // namespace simdjson -#endif // SIMDJSON_INLINE_TAPE_REF_H -/* end file include/simdjson/internal/tape_ref-inl.h */ -/* begin file include/simdjson/dom/serialization-inl.h */ +#endif // SIMDJSON_TAPE_REF_INL_H +/* end file simdjson/internal/tape_ref-inl.h */ -#ifndef SIMDJSON_SERIALIZATION_INL_H -#define SIMDJSON_SERIALIZATION_INL_H +#include +namespace simdjson { -#include -#include +// +// simdjson_result inline implementation +// +simdjson_inline simdjson_result::simdjson_result() noexcept + : internal::simdjson_result_base() {} +simdjson_inline simdjson_result::simdjson_result(dom::array value) noexcept + : internal::simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : internal::simdjson_result_base(error) {} -namespace simdjson { -namespace dom { -inline bool parser::print_json(std::ostream &os) const noexcept { - if (!valid) { return false; } - simdjson::internal::string_builder<> sb; - sb.append(doc.root()); - std::string_view answer = sb.str(); - os << answer; - return true; +#if SIMDJSON_EXCEPTIONS + +inline dom::array::iterator simdjson_result::begin() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.begin(); +} +inline dom::array::iterator simdjson_result::end() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.end(); } +inline size_t simdjson_result::size() const noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first.size(); } -/*** - * Number utility functions - **/ +#endif // SIMDJSON_EXCEPTIONS -namespace { -/**@private - * Escape sequence like \b or \u0001 - * We expect that most compilers will use 8 bytes for this data structure. - **/ -struct escape_sequence { - uint8_t length; - const char string[7]; // technically, we only ever need 6 characters, we pad to 8 -}; -/**@private - * This converts a signed integer into a character sequence. - * The caller is responsible for providing enough memory (at least - * 20 characters.) - * Though various runtime libraries provide itoa functions, - * it is not part of the C++ standard. The C++17 standard - * adds the to_chars functions which would do as well, but - * we want to support C++11. - */ -char *fast_itoa(char *output, int64_t value) noexcept { - // This is a standard implementation of itoa. - char buffer[20]; - uint64_t value_positive; - // In general, negating a signed integer is unsafe. - if(value < 0) { - *output++ = '-'; - // Doing value_positive = -value; while avoiding - // undefined behavior warnings. - // It assumes two complement's which is universal at this - // point in time. - std::memcpy(&value_positive, &value, sizeof(value)); - value_positive = (~value_positive) + 1; // this is a negation - } else { - value_positive = value; - } - // We work solely with value_positive. It *might* be easier - // for an optimizing compiler to deal with an unsigned variable - // as far as performance goes. - const char *const end_buffer = buffer + 20; - char *write_pointer = buffer + 19; - // A faster approach is possible if we expect large integers: - // unroll the loop (work in 100s, 1000s) and use some kind of - // memoization. - while(value_positive >= 10) { - *write_pointer-- = char('0' + (value_positive % 10)); - value_positive /= 10; - } - *write_pointer = char('0' + value_positive); - size_t len = end_buffer - write_pointer; - std::memcpy(output, write_pointer, len); - return output + len; +inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) const noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); } -/**@private - * This converts an unsigned integer into a character sequence. - * The caller is responsible for providing enough memory (at least - * 19 characters.) - * Though various runtime libraries provide itoa functions, - * it is not part of the C++ standard. The C++17 standard - * adds the to_chars functions which would do as well, but - * we want to support C++11. - */ -char *fast_itoa(char *output, uint64_t value) noexcept { - // This is a standard implementation of itoa. - char buffer[20]; - const char *const end_buffer = buffer + 20; - char *write_pointer = buffer + 19; - // A faster approach is possible if we expect large integers: - // unroll the loop (work in 100s, 1000s) and use some kind of - // memoization. - while(value >= 10) { - *write_pointer-- = char('0' + (value % 10)); - value /= 10; - }; - *write_pointer = char('0' + value); - size_t len = end_buffer - write_pointer; - std::memcpy(output, write_pointer, len); - return output + len; +inline simdjson_result simdjson_result::at(size_t index) const noexcept { + if (error()) { return error(); } + return first.at(index); } -} // anonymous namespace -namespace internal { -/*** - * Minifier/formatter code. - **/ +namespace dom { -simdjson_inline void mini_formatter::number(uint64_t x) { - char number_buffer[24]; - char *newp = fast_itoa(number_buffer, x); - buffer.insert(buffer.end(), number_buffer, newp); +// +// array inline implementation +// +simdjson_inline array::array() noexcept : tape{} {} +simdjson_inline array::array(const internal::tape_ref &_tape) noexcept : tape{_tape} {} +inline array::iterator array::begin() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return internal::tape_ref(tape.doc, tape.json_index + 1); } - -simdjson_inline void mini_formatter::number(int64_t x) { - char number_buffer[24]; - char *newp = fast_itoa(number_buffer, x); - buffer.insert(buffer.end(), number_buffer, newp); +inline array::iterator array::end() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return internal::tape_ref(tape.doc, tape.after_element() - 1); } - -simdjson_inline void mini_formatter::number(double x) { - char number_buffer[24]; - // Currently, passing the nullptr to the second argument is - // safe because our implementation does not check the second - // argument. - char *newp = internal::to_chars(number_buffer, nullptr, x); - buffer.insert(buffer.end(), number_buffer, newp); +inline size_t array::size() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return tape.scope_count(); +} +inline size_t array::number_of_slots() const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + return tape.matching_brace_index() - tape.json_index; } +inline simdjson_result array::at_pointer(std::string_view json_pointer) const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + if(json_pointer.empty()) { // an empty string means that we return the current node + return element(this->tape); // copy the current node + } else if(json_pointer[0] != '/') { // otherwise there is an error + return INVALID_JSON_POINTER; + } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } -simdjson_inline void mini_formatter::start_array() { one_char('['); } -simdjson_inline void mini_formatter::end_array() { one_char(']'); } -simdjson_inline void mini_formatter::start_object() { one_char('{'); } -simdjson_inline void mini_formatter::end_object() { one_char('}'); } -simdjson_inline void mini_formatter::comma() { one_char(','); } + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" -simdjson_inline void mini_formatter::true_atom() { - const char * s = "true"; - buffer.insert(buffer.end(), s, s + 4); -} -simdjson_inline void mini_formatter::false_atom() { - const char * s = "false"; - buffer.insert(buffer.end(), s, s + 5); -} -simdjson_inline void mini_formatter::null_atom() { - const char * s = "null"; - buffer.insert(buffer.end(), s, s + 4); -} -simdjson_inline void mini_formatter::one_char(char c) { buffer.push_back(c); } -simdjson_inline void mini_formatter::key(std::string_view unescaped) { - string(unescaped); - one_char(':'); -} -simdjson_inline void mini_formatter::string(std::string_view unescaped) { - one_char('\"'); - size_t i = 0; - // Fast path for the case where we have no control character, no ", and no backslash. - // This should include most keys. - // - // We would like to use 'bool' but some compilers take offense to bitwise operation - // with bool types. - constexpr static char needs_escaping[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; - for(;i + 8 <= unescaped.length(); i += 8) { - // Poor's man vectorization. This could get much faster if we used SIMD. - // - // It is not the case that replacing '|' with '||' would be neutral performance-wise. - if(needs_escaping[uint8_t(unescaped[i])] | needs_escaping[uint8_t(unescaped[i+1])] - | needs_escaping[uint8_t(unescaped[i+2])] | needs_escaping[uint8_t(unescaped[i+3])] - | needs_escaping[uint8_t(unescaped[i+4])] | needs_escaping[uint8_t(unescaped[i+5])] - | needs_escaping[uint8_t(unescaped[i+6])] | needs_escaping[uint8_t(unescaped[i+7])] - ) { break; } + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + + // Get the child + auto child = array(tape).at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; } - for(;i < unescaped.length(); i++) { - if(needs_escaping[uint8_t(unescaped[i])]) { break; } + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); } - // The following is also possible and omits a 256-byte table, but it is slower: - // for (; (i < unescaped.length()) && (uint8_t(unescaped[i]) > 0x1F) - // && (unescaped[i] != '\"') && (unescaped[i] != '\\'); i++) {} - - // At least for long strings, the following should be fast. We could - // do better by integrating the checks and the insertion. - buffer.insert(buffer.end(), unescaped.data(), unescaped.data() + i); - // We caught a control character if we enter this loop (slow). - // Note that we are do not restart from the beginning, but rather we continue - // from the point where we encountered something that requires escaping. - for (; i < unescaped.length(); i++) { - switch (unescaped[i]) { - case '\"': - { - const char * s = "\\\""; - buffer.insert(buffer.end(), s, s + 2); - } - break; - case '\\': - { - const char * s = "\\\\"; - buffer.insert(buffer.end(), s, s + 2); - } - break; - default: - if (uint8_t(unescaped[i]) <= 0x1F) { - // If packed, this uses 8 * 32 bytes. - // Note that we expect most compilers to embed this code in the data - // section. - constexpr static escape_sequence escaped[32] = { - {6, "\\u0000"}, {6, "\\u0001"}, {6, "\\u0002"}, {6, "\\u0003"}, - {6, "\\u0004"}, {6, "\\u0005"}, {6, "\\u0006"}, {6, "\\u0007"}, - {2, "\\b"}, {2, "\\t"}, {2, "\\n"}, {6, "\\u000b"}, - {2, "\\f"}, {2, "\\r"}, {6, "\\u000e"}, {6, "\\u000f"}, - {6, "\\u0010"}, {6, "\\u0011"}, {6, "\\u0012"}, {6, "\\u0013"}, - {6, "\\u0014"}, {6, "\\u0015"}, {6, "\\u0016"}, {6, "\\u0017"}, - {6, "\\u0018"}, {6, "\\u0019"}, {6, "\\u001a"}, {6, "\\u001b"}, - {6, "\\u001c"}, {6, "\\u001d"}, {6, "\\u001e"}, {6, "\\u001f"}}; - auto u = escaped[uint8_t(unescaped[i])]; - buffer.insert(buffer.end(), u.string, u.string + u.length); - } else { - one_char(unescaped[i]); - } - } // switch - } // for - one_char('\"'); + return child; } -inline void mini_formatter::clear() { - buffer.clear(); +inline simdjson_result array::at(size_t index) const noexcept { + SIMDJSON_DEVELOPMENT_ASSERT(tape.usable()); // https://github.com/simdjson/simdjson/issues/1914 + size_t i=0; + for (auto element : *this) { + if (i == index) { return element; } + i++; + } + return INDEX_OUT_OF_BOUNDS; } -simdjson_inline std::string_view mini_formatter::str() const { - return std::string_view(buffer.data(), buffer.size()); +// +// array::iterator inline implementation +// +simdjson_inline array::iterator::iterator(const internal::tape_ref &_tape) noexcept : tape{_tape} { } +inline element array::iterator::operator*() const noexcept { + return element(tape); +} +inline array::iterator& array::iterator::operator++() noexcept { + tape.json_index = tape.after_element(); + return *this; +} +inline array::iterator array::iterator::operator++(int) noexcept { + array::iterator out = *this; + ++*this; + return out; +} +inline bool array::iterator::operator!=(const array::iterator& other) const noexcept { + return tape.json_index != other.tape.json_index; +} +inline bool array::iterator::operator==(const array::iterator& other) const noexcept { + return tape.json_index == other.tape.json_index; +} +inline bool array::iterator::operator<(const array::iterator& other) const noexcept { + return tape.json_index < other.tape.json_index; +} +inline bool array::iterator::operator<=(const array::iterator& other) const noexcept { + return tape.json_index <= other.tape.json_index; +} +inline bool array::iterator::operator>=(const array::iterator& other) const noexcept { + return tape.json_index >= other.tape.json_index; +} +inline bool array::iterator::operator>(const array::iterator& other) const noexcept { + return tape.json_index > other.tape.json_index; } +} // namespace dom -/*** - * String building code. - **/ -template -inline void string_builder::append(simdjson::dom::element value) { - // using tape_type = simdjson::internal::tape_type; - size_t depth = 0; - constexpr size_t MAX_DEPTH = 16; - bool is_object[MAX_DEPTH]; - is_object[0] = false; - bool after_value = false; +} // namespace simdjson - internal::tape_ref iter(value.tape); - do { - // print commas after each value - if (after_value) { - format.comma(); - } - // If we are in an object, print the next key and :, and skip to the next - // value. - if (is_object[depth]) { - format.key(iter.get_string_view()); - iter.json_index++; - } - switch (iter.tape_ref_type()) { +/* skipped duplicate #include "simdjson/dom/element-inl.h" */ - // Arrays - case tape_type::START_ARRAY: { - // If we're too deep, we need to recurse to go deeper. - depth++; - if (simdjson_unlikely(depth >= MAX_DEPTH)) { - append(simdjson::dom::array(iter)); - iter.json_index = iter.matching_brace_index() - 1; // Jump to the ] - depth--; - break; - } +#if defined(__cpp_lib_ranges) +static_assert(std::ranges::view); +static_assert(std::ranges::sized_range); +#if SIMDJSON_EXCEPTIONS +static_assert(std::ranges::view>); +static_assert(std::ranges::sized_range>); +#endif // SIMDJSON_EXCEPTIONS +#endif // defined(__cpp_lib_ranges) - // Output start [ - format.start_array(); - iter.json_index++; +#endif // SIMDJSON_ARRAY_INL_H +/* end file simdjson/dom/array-inl.h */ +/* skipped duplicate #include "simdjson/dom/document_stream-inl.h" */ +/* including simdjson/dom/document-inl.h: #include "simdjson/dom/document-inl.h" */ +/* begin file simdjson/dom/document-inl.h */ +#ifndef SIMDJSON_DOCUMENT_INL_H +#define SIMDJSON_DOCUMENT_INL_H - // Handle empty [] (we don't want to come back around and print commas) - if (iter.tape_ref_type() == tape_type::END_ARRAY) { - format.end_array(); - depth--; - break; - } +// Inline implementations go in here. - is_object[depth] = false; - after_value = false; - continue; - } +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/document.h" */ +/* skipped duplicate #include "simdjson/dom/element-inl.h" */ +/* skipped duplicate #include "simdjson/internal/tape_ref-inl.h" */ +/* including simdjson/internal/jsonformatutils.h: #include "simdjson/internal/jsonformatutils.h" */ +/* begin file simdjson/internal/jsonformatutils.h */ +#ifndef SIMDJSON_INTERNAL_JSONFORMATUTILS_H +#define SIMDJSON_INTERNAL_JSONFORMATUTILS_H - // Objects - case tape_type::START_OBJECT: { - // If we're too deep, we need to recurse to go deeper. - depth++; - if (simdjson_unlikely(depth >= MAX_DEPTH)) { - append(simdjson::dom::object(iter)); - iter.json_index = iter.matching_brace_index() - 1; // Jump to the } - depth--; - break; - } +/* skipped duplicate #include "simdjson/base.h" */ +#include +#include +#include - // Output start { - format.start_object(); - iter.json_index++; +namespace simdjson { +namespace internal { - // Handle empty {} (we don't want to come back around and print commas) - if (iter.tape_ref_type() == tape_type::END_OBJECT) { - format.end_object(); - depth--; - break; - } +inline std::ostream& operator<<(std::ostream& out, const escape_json_string &str); - is_object[depth] = true; - after_value = false; - continue; - } +class escape_json_string { +public: + escape_json_string(std::string_view _str) noexcept : str{_str} {} + operator std::string() const noexcept { std::stringstream s; s << *this; return s.str(); } +private: + std::string_view str; + friend std::ostream& operator<<(std::ostream& out, const escape_json_string &unescaped); +}; - // Scalars - case tape_type::STRING: - format.string(iter.get_string_view()); +inline std::ostream& operator<<(std::ostream& out, const escape_json_string &unescaped) { + for (size_t i=0; i()); - iter.json_index++; // numbers take up 2 spots, so we need to increment - // extra + case '\f': + out << "\\f"; break; - case tape_type::UINT64: - format.number(iter.next_tape_value()); - iter.json_index++; // numbers take up 2 spots, so we need to increment - // extra + case '\n': + out << "\\n"; break; - case tape_type::DOUBLE: - format.number(iter.next_tape_value()); - iter.json_index++; // numbers take up 2 spots, so we need to increment - // extra + case '\r': + out << "\\r"; break; - case tape_type::TRUE_VALUE: - format.true_atom(); + case '\"': + out << "\\\""; break; - case tape_type::FALSE_VALUE: - format.false_atom(); + case '\t': + out << "\\t"; break; - case tape_type::NULL_VALUE: - format.null_atom(); + case '\\': + out << "\\\\"; break; - - // These are impossible - case tape_type::END_ARRAY: - case tape_type::END_OBJECT: - case tape_type::ROOT: - SIMDJSON_UNREACHABLE(); - } - iter.json_index++; - after_value = true; - - // Handle multiple ends in a row - while (depth != 0 && (iter.tape_ref_type() == tape_type::END_ARRAY || - iter.tape_ref_type() == tape_type::END_OBJECT)) { - if (iter.tape_ref_type() == tape_type::END_ARRAY) { - format.end_array(); + default: + if (static_cast(unescaped.str[i]) <= 0x1F) { + // TODO can this be done once at the beginning, or will it mess up << char? + std::ios::fmtflags f(out.flags()); + out << "\\u" << std::hex << std::setw(4) << std::setfill('0') << int(unescaped.str[i]); + out.flags(f); } else { - format.end_object(); + out << unescaped.str[i]; } - depth--; - iter.json_index++; - } - - // Stop when we're at depth 0 - } while (depth != 0); -} - -template -inline void string_builder::append(simdjson::dom::object value) { - format.start_object(); - auto pair = value.begin(); - auto end = value.end(); - if (pair != end) { - append(*pair); - for (++pair; pair != end; ++pair) { - format.comma(); - append(*pair); - } - } - format.end_object(); -} - -template -inline void string_builder::append(simdjson::dom::array value) { - format.start_array(); - auto iter = value.begin(); - auto end = value.end(); - if (iter != end) { - append(*iter); - for (++iter; iter != end; ++iter) { - format.comma(); - append(*iter); } } - format.end_array(); -} - -template -simdjson_inline void string_builder::append(simdjson::dom::key_value_pair kv) { - format.key(kv.key); - append(kv.value); -} - -template -simdjson_inline void string_builder::clear() { - format.clear(); -} - -template -simdjson_inline std::string_view string_builder::str() const { - return format.str(); + return out; } - } // namespace internal } // namespace simdjson -#endif -/* end file include/simdjson/dom/serialization-inl.h */ - -SIMDJSON_POP_DISABLE_WARNINGS - -#endif // SIMDJSON_DOM_H -/* end file include/simdjson/dom.h */ -/* begin file include/simdjson/builtin.h */ -#ifndef SIMDJSON_BUILTIN_H -#define SIMDJSON_BUILTIN_H - -/* begin file include/simdjson/implementations.h */ -#ifndef SIMDJSON_IMPLEMENTATIONS_H -#define SIMDJSON_IMPLEMENTATIONS_H - -/* begin file include/simdjson/implementation-base.h */ -#ifndef SIMDJSON_IMPLEMENTATION_BASE_H -#define SIMDJSON_IMPLEMENTATION_BASE_H - -/** - * @file - * - * Includes common stuff needed for implementations. - */ - - -// Implementation-internal files (must be included before the implementations themselves, to keep -// amalgamation working--otherwise, the first time a file is included, it might be put inside the -// #ifdef SIMDJSON_IMPLEMENTATION_ARM64/FALLBACK/etc., which means the other implementations can't -// compile unless that implementation is turned on). -/* begin file include/simdjson/internal/jsoncharutils_tables.h */ -#ifndef SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H -#define SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H - +#endif // SIMDJSON_INTERNAL_JSONFORMATUTILS_H +/* end file simdjson/internal/jsonformatutils.h */ -#ifdef JSON_TEST_STRINGS -void found_string(const uint8_t *buf, const uint8_t *parsed_begin, - const uint8_t *parsed_end); -void found_bad_string(const uint8_t *buf); -#endif +#include namespace simdjson { -namespace internal { -// structural chars here are -// they are { 0x7b } 0x7d : 0x3a [ 0x5b ] 0x5d , 0x2c (and NULL) -// we are also interested in the four whitespace characters -// space 0x20, linefeed 0x0a, horizontal tab 0x09 and carriage return 0x0d - -extern SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace_negated[256]; -extern SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace[256]; -extern SIMDJSON_DLLIMPORTEXPORT const uint32_t digit_to_val32[886]; - -} // namespace internal -} // namespace simdjson +namespace dom { -#endif // SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H -/* end file include/simdjson/internal/jsoncharutils_tables.h */ -/* begin file include/simdjson/internal/numberparsing_tables.h */ -#ifndef SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H -#define SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H +// +// document inline implementation +// +inline element document::root() const noexcept { + return element(internal::tape_ref(this, 1)); +} +simdjson_warn_unused +inline size_t document::capacity() const noexcept { + return allocated_capacity; +} +simdjson_warn_unused +inline error_code document::allocate(size_t capacity) noexcept { + if (capacity == 0) { + string_buf.reset(); + tape.reset(); + allocated_capacity = 0; + return SUCCESS; + } -namespace simdjson { -namespace internal { -/** - * The smallest non-zero float (binary64) is 2^-1074. - * We take as input numbers of the form w x 10^q where w < 2^64. - * We have that w * 10^-343 < 2^(64-344) 5^-343 < 2^-1076. - * However, we have that - * (2^64-1) * 10^-342 = (2^64-1) * 2^-342 * 5^-342 > 2^-1074. - * Thus it is possible for a number of the form w * 10^-342 where - * w is a 64-bit value to be a non-zero floating-point number. - ********* - * Any number of form w * 10^309 where w>= 1 is going to be - * infinite in binary64 so we never need to worry about powers - * of 5 greater than 308. - */ -constexpr int smallest_power = -342; -constexpr int largest_power = 308; - -/** - * Represents a 128-bit value. - * low: least significant 64 bits. - * high: most significant 64 bits. - */ -struct value128 { - uint64_t low; - uint64_t high; -}; - - -// Precomputed powers of ten from 10^0 to 10^22. These -// can be represented exactly using the double type. -extern SIMDJSON_DLLIMPORTEXPORT const double power_of_ten[]; - - -/** - * When mapping numbers from decimal to binary, - * we go from w * 10^q to m * 2^p but we have - * 10^q = 5^q * 2^q, so effectively - * we are trying to match - * w * 2^q * 5^q to m * 2^p. Thus the powers of two - * are not a concern since they can be represented - * exactly using the binary notation, only the powers of five - * affect the binary significand. - */ + // a pathological input like "[[[[..." would generate capacity tape elements, so + // need a capacity of at least capacity + 1, but it is also possible to do + // worse with "[7,7,7,7,6,7,7,7,6,7,7,6,[7,7,7,7,6,7,7,7,6,7,7,6,7,7,7,7,7,7,6" + //where capacity + 1 tape elements are + // generated, see issue https://github.com/simdjson/simdjson/issues/345 + size_t tape_capacity = SIMDJSON_ROUNDUP_N(capacity + 3, 64); + // a document with only zero-length strings... could have capacity/3 string + // and we would need capacity/3 * 5 bytes on the string buffer + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset( new (std::nothrow) uint8_t[string_capacity]); + tape.reset(new (std::nothrow) uint64_t[tape_capacity]); + if(!(string_buf && tape)) { + allocated_capacity = 0; + string_buf.reset(); + tape.reset(); + return MEMALLOC; + } + // Technically the allocated_capacity might be larger than capacity + // so the next line is pessimistic. + allocated_capacity = capacity; + return SUCCESS; +} +inline bool document::dump_raw_tape(std::ostream &os) const noexcept { + uint32_t string_length; + size_t tape_idx = 0; + uint64_t tape_val = tape[tape_idx]; + uint8_t type = uint8_t(tape_val >> 56); + os << tape_idx << " : " << type; + tape_idx++; + size_t how_many = 0; + if (type == 'r') { + how_many = size_t(tape_val & internal::JSON_VALUE_MASK); + } else { + // Error: no starting root node? + return false; + } + os << "\t// pointing to " << how_many << " (right after last node)\n"; + uint64_t payload; + for (; tape_idx < how_many; tape_idx++) { + os << tape_idx << " : "; + tape_val = tape[tape_idx]; + payload = tape_val & internal::JSON_VALUE_MASK; + type = uint8_t(tape_val >> 56); + switch (type) { + case '"': // we have a string + os << "string \""; + std::memcpy(&string_length, string_buf.get() + payload, sizeof(uint32_t)); + os << internal::escape_json_string(std::string_view( + reinterpret_cast(string_buf.get() + payload + sizeof(uint32_t)), + string_length + )); + os << '"'; + os << '\n'; + break; + case 'l': // we have a long int + if (tape_idx + 1 >= how_many) { + return false; + } + os << "integer " << static_cast(tape[++tape_idx]) << "\n"; + break; + case 'u': // we have a long uint + if (tape_idx + 1 >= how_many) { + return false; + } + os << "unsigned integer " << tape[++tape_idx] << "\n"; + break; + case 'd': // we have a double + os << "float "; + if (tape_idx + 1 >= how_many) { + return false; + } + double answer; + std::memcpy(&answer, &tape[++tape_idx], sizeof(answer)); + os << answer << '\n'; + break; + case 'n': // we have a null + os << "null\n"; + break; + case 't': // we have a true + os << "true\n"; + break; + case 'f': // we have a false + os << "false\n"; + break; + case '{': // we have an object + os << "{\t// pointing to next tape location " << uint32_t(payload) + << " (first node after the scope), " + << " saturated count " + << ((payload >> 32) & internal::JSON_COUNT_MASK)<< "\n"; + break; case '}': // we end an object + os << "}\t// pointing to previous tape location " << uint32_t(payload) + << " (start of the scope)\n"; + break; + case '[': // we start an array + os << "[\t// pointing to next tape location " << uint32_t(payload) + << " (first node after the scope), " + << " saturated count " + << ((payload >> 32) & internal::JSON_COUNT_MASK)<< "\n"; + break; + case ']': // we end an array + os << "]\t// pointing to previous tape location " << uint32_t(payload) + << " (start of the scope)\n"; + break; + case 'r': // we start and end with the root node + // should we be hitting the root node? + return false; + default: + return false; + } + } + tape_val = tape[tape_idx]; + payload = tape_val & internal::JSON_VALUE_MASK; + type = uint8_t(tape_val >> 56); + os << tape_idx << " : " << type << "\t// pointing to " << payload + << " (start root)\n"; + return true; +} -// The truncated powers of five from 5^-342 all the way to 5^308 -// The mantissa is truncated to 128 bits, and -// never rounded up. Uses about 10KB. -extern SIMDJSON_DLLIMPORTEXPORT const uint64_t power_of_five_128[]; -} // namespace internal +} // namespace dom } // namespace simdjson -#endif // SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H -/* end file include/simdjson/internal/numberparsing_tables.h */ -/* begin file include/simdjson/internal/simdprune_tables.h */ -#ifndef SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H -#define SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H +#endif // SIMDJSON_DOCUMENT_INL_H +/* end file simdjson/dom/document-inl.h */ +/* skipped duplicate #include "simdjson/dom/element-inl.h" */ +/* skipped duplicate #include "simdjson/dom/object-inl.h" */ +/* including simdjson/dom/parsedjson_iterator-inl.h: #include "simdjson/dom/parsedjson_iterator-inl.h" */ +/* begin file simdjson/dom/parsedjson_iterator-inl.h */ +#ifndef SIMDJSON_PARSEDJSON_ITERATOR_INL_H +#define SIMDJSON_PARSEDJSON_ITERATOR_INL_H -#include +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/parsedjson_iterator.h" */ +/* skipped duplicate #include "simdjson/internal/jsonformatutils.h" */ -namespace simdjson { // table modified and copied from -namespace internal { // http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetTable +/* skipped duplicate #include "simdjson/dom/parser-inl.h" */ +/* skipped duplicate #include "simdjson/internal/tape_ref-inl.h" */ -extern SIMDJSON_DLLIMPORTEXPORT const unsigned char BitsSetTable256mul2[256]; +#include +#include +#include +#include -extern SIMDJSON_DLLIMPORTEXPORT const uint8_t pshufb_combine_table[272]; +#ifndef SIMDJSON_DISABLE_DEPRECATED_API -// 256 * 8 bytes = 2kB, easily fits in cache. -extern SIMDJSON_DLLIMPORTEXPORT const uint64_t thintable_epi8[256]; +namespace simdjson { -} // namespace internal -} // namespace simdjson +// VS2017 reports deprecated warnings when you define a deprecated class's methods. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_DEPRECATED_WARNING -#endif // SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H -/* end file include/simdjson/internal/simdprune_tables.h */ +// Because of template weirdness, the actual class definition is inline in the document class +simdjson_warn_unused bool dom::parser::Iterator::is_ok() const { + return location < tape_length; +} -#endif // SIMDJSON_IMPLEMENTATION_BASE_H -/* end file include/simdjson/implementation-base.h */ +// useful for debugging purposes +size_t dom::parser::Iterator::get_tape_location() const { + return location; +} -// -// First, figure out which implementations can be run. Doing it here makes it so we don't have to worry about the order -// in which we include them. -// +// useful for debugging purposes +size_t dom::parser::Iterator::get_tape_length() const { + return tape_length; +} -#ifndef SIMDJSON_IMPLEMENTATION_ARM64 -#define SIMDJSON_IMPLEMENTATION_ARM64 (SIMDJSON_IS_ARM64) -#endif -#define SIMDJSON_CAN_ALWAYS_RUN_ARM64 SIMDJSON_IMPLEMENTATION_ARM64 && SIMDJSON_IS_ARM64 +// returns the current depth (start at 1 with 0 reserved for the fictitious root +// node) +size_t dom::parser::Iterator::get_depth() const { + return depth; +} -#ifdef __has_include -// How do we detect that a compiler supports vbmi2? -// For sure if the following header is found, we are ok? -#if __has_include() -#define SIMDJSON_COMPILER_SUPPORTS_VBMI2 1 -#endif -#endif +// A scope is a series of nodes at the same depth, typically it is either an +// object ({) or an array ([). The root node has type 'r'. +uint8_t dom::parser::Iterator::get_scope_type() const { + return depth_index[depth].scope_type; +} -#ifdef _MSC_VER -#if _MSC_VER >= 1920 -// Visual Studio 2019 and up support VBMI2 under x64 even if the header -// avx512vbmi2intrin.h is not found. -#define SIMDJSON_COMPILER_SUPPORTS_VBMI2 1 -#endif -#endif +bool dom::parser::Iterator::move_forward() { + if (location + 1 >= tape_length) { + return false; // we are at the end! + } -// By default, we allow AVX512. -#ifndef SIMDJSON_AVX512_ALLOWED -#define SIMDJSON_AVX512_ALLOWED 1 -#endif + if ((current_type == '[') || (current_type == '{')) { + // We are entering a new scope + depth++; + assert(depth < max_depth); + depth_index[depth].start_of_scope = location; + depth_index[depth].scope_type = current_type; + } else if ((current_type == ']') || (current_type == '}')) { + // Leaving a scope. + depth--; + } else if (is_number()) { + // these types use 2 locations on the tape, not just one. + location += 1; + } -// Default Icelake to on if this is x86-64. Even if we're not compiled for it, it could be selected -// at runtime. -#ifndef SIMDJSON_IMPLEMENTATION_ICELAKE -#define SIMDJSON_IMPLEMENTATION_ICELAKE ((SIMDJSON_IS_X86_64) && (SIMDJSON_AVX512_ALLOWED) && (SIMDJSON_COMPILER_SUPPORTS_VBMI2)) -#endif + location += 1; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + return true; +} -#ifdef _MSC_VER -// To see why (__BMI__) && (__PCLMUL__) && (__LZCNT__) are not part of this next line, see -// https://github.com/simdjson/simdjson/issues/1247 -#define SIMDJSON_CAN_ALWAYS_RUN_ICELAKE ((SIMDJSON_IMPLEMENTATION_ICELAKE) && (__AVX2__) && (__AVX512F__) && (__AVX512DQ__) && (__AVX512CD__) && (__AVX512BW__) && (__AVX512VL__) && (__AVX512VBMI2__)) -#else -#define SIMDJSON_CAN_ALWAYS_RUN_ICELAKE ((SIMDJSON_IMPLEMENTATION_ICELAKE) && (__AVX2__) && (__BMI__) && (__PCLMUL__) && (__LZCNT__) && (__AVX512F__) && (__AVX512DQ__) && (__AVX512CD__) && (__AVX512BW__) && (__AVX512VL__) && (__AVX512VBMI2__)) -#endif +void dom::parser::Iterator::move_to_value() { + // assume that we are on a key, so move by 1. + location += 1; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); +} -// Default Haswell to on if this is x86-64. Even if we're not compiled for it, it could be selected -// at runtime. -#ifndef SIMDJSON_IMPLEMENTATION_HASWELL -#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE -// if icelake is always available, never enable haswell. -#define SIMDJSON_IMPLEMENTATION_HASWELL 0 -#else -#define SIMDJSON_IMPLEMENTATION_HASWELL SIMDJSON_IS_X86_64 -#endif -#endif -#ifdef _MSC_VER -// To see why (__BMI__) && (__PCLMUL__) && (__LZCNT__) are not part of this next line, see -// https://github.com/simdjson/simdjson/issues/1247 -#define SIMDJSON_CAN_ALWAYS_RUN_HASWELL ((SIMDJSON_IMPLEMENTATION_HASWELL) && (SIMDJSON_IS_X86_64) && (__AVX2__)) -#else -#define SIMDJSON_CAN_ALWAYS_RUN_HASWELL ((SIMDJSON_IMPLEMENTATION_HASWELL) && (SIMDJSON_IS_X86_64) && (__AVX2__) && (__BMI__) && (__PCLMUL__) && (__LZCNT__)) -#endif +bool dom::parser::Iterator::move_to_key(const char *key) { + if (down()) { + do { + const bool right_key = (strcmp(get_string(), key) == 0); + move_to_value(); + if (right_key) { + return true; + } + } while (next()); + up(); + } + return false; +} -// Default Westmere to on if this is x86-64. -#ifndef SIMDJSON_IMPLEMENTATION_WESTMERE -#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE || SIMDJSON_CAN_ALWAYS_RUN_HASWELL -// if icelake or haswell are always available, never enable westmere. -#define SIMDJSON_IMPLEMENTATION_WESTMERE 0 -#else -#define SIMDJSON_IMPLEMENTATION_WESTMERE SIMDJSON_IS_X86_64 -#endif -#endif -#define SIMDJSON_CAN_ALWAYS_RUN_WESTMERE (SIMDJSON_IMPLEMENTATION_WESTMERE && SIMDJSON_IS_X86_64 && __SSE4_2__ && __PCLMUL__) +bool dom::parser::Iterator::move_to_key_insensitive( + const char *key) { + if (down()) { + do { + const bool right_key = (simdjson_strcasecmp(get_string(), key) == 0); + move_to_value(); + if (right_key) { + return true; + } + } while (next()); + up(); + } + return false; +} -#ifndef SIMDJSON_IMPLEMENTATION_PPC64 -#define SIMDJSON_IMPLEMENTATION_PPC64 (SIMDJSON_IS_PPC64 && SIMDJSON_IS_PPC64_VMX) -#endif -#define SIMDJSON_CAN_ALWAYS_RUN_PPC64 SIMDJSON_IMPLEMENTATION_PPC64 && SIMDJSON_IS_PPC64 && SIMDJSON_IS_PPC64_VMX +bool dom::parser::Iterator::move_to_key(const char *key, + uint32_t length) { + if (down()) { + do { + bool right_key = ((get_string_length() == length) && + (memcmp(get_string(), key, length) == 0)); + move_to_value(); + if (right_key) { + return true; + } + } while (next()); + up(); + } + return false; +} -// Default Fallback to on unless a builtin implementation has already been selected. -#ifndef SIMDJSON_IMPLEMENTATION_FALLBACK -#if SIMDJSON_CAN_ALWAYS_RUN_ARM64 || SIMDJSON_CAN_ALWAYS_RUN_ICELAKE || SIMDJSON_CAN_ALWAYS_RUN_HASWELL || SIMDJSON_CAN_ALWAYS_RUN_WESTMERE || SIMDJSON_CAN_ALWAYS_RUN_PPC64 -// if anything at all except fallback can always run, then disable fallback. -#define SIMDJSON_IMPLEMENTATION_FALLBACK 0 -#else -#define SIMDJSON_IMPLEMENTATION_FALLBACK 1 -#endif -#endif -#define SIMDJSON_CAN_ALWAYS_RUN_FALLBACK SIMDJSON_IMPLEMENTATION_FALLBACK +bool dom::parser::Iterator::move_to_index(uint32_t index) { + if (down()) { + uint32_t i = 0; + for (; i < index; i++) { + if (!next()) { + break; + } + } + if (i == index) { + return true; + } + up(); + } + return false; +} -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_UNDESIRED_WARNINGS +bool dom::parser::Iterator::prev() { + size_t target_location = location; + to_start_scope(); + size_t npos = location; + if (target_location == npos) { + return false; // we were already at the start + } + size_t oldnpos; + // we have that npos < target_location here + do { + oldnpos = npos; + if ((current_type == '[') || (current_type == '{')) { + // we need to jump + npos = uint32_t(current_val); + } else { + npos = npos + ((current_type == 'd' || current_type == 'l') ? 2 : 1); + } + } while (npos < target_location); + location = oldnpos; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + return true; +} -// Implementations -/* begin file include/simdjson/arm64.h */ -#ifndef SIMDJSON_ARM64_H -#define SIMDJSON_ARM64_H +bool dom::parser::Iterator::up() { + if (depth == 1) { + return false; // don't allow moving back to root + } + to_start_scope(); + // next we just move to the previous value + depth--; + location -= 1; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + return true; +} +bool dom::parser::Iterator::down() { + if (location + 1 >= tape_length) { + return false; + } + if ((current_type == '[') || (current_type == '{')) { + size_t npos = uint32_t(current_val); + if (npos == location + 2) { + return false; // we have an empty scope + } + depth++; + assert(depth < max_depth); + location = location + 1; + depth_index[depth].start_of_scope = location; + depth_index[depth].scope_type = current_type; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + return true; + } + return false; +} -#if SIMDJSON_IMPLEMENTATION_ARM64 +void dom::parser::Iterator::to_start_scope() { + location = depth_index[depth].start_of_scope; + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); +} -namespace simdjson { -/** - * Implementation for NEON (ARMv8). - */ -namespace arm64 { -} // namespace arm64 -} // namespace simdjson +inline void dom::parser::Iterator::rewind() { + while (up()) + ; +} -/* begin file include/simdjson/arm64/implementation.h */ -#ifndef SIMDJSON_ARM64_IMPLEMENTATION_H -#define SIMDJSON_ARM64_IMPLEMENTATION_H +bool dom::parser::Iterator::next() { + size_t npos; + if ((current_type == '[') || (current_type == '{')) { + // we need to jump + npos = uint32_t(current_val); + } else { + npos = location + (is_number() ? 2 : 1); + } + uint64_t next_val = doc.tape[npos]; + uint8_t next_type = uint8_t(next_val >> 56); + if ((next_type == ']') || (next_type == '}')) { + return false; // we reached the end of the scope + } + location = npos; + current_val = next_val; + current_type = next_type; + return true; +} +dom::parser::Iterator::Iterator(const dom::parser &pj) noexcept(false) + : doc(pj.doc) +{ +#if SIMDJSON_EXCEPTIONS + if (!pj.valid) { throw simdjson_error(pj.error); } +#else + if (!pj.valid) { return; } // abort() usage is forbidden in the library +#endif -namespace simdjson { -namespace arm64 { + max_depth = pj.max_depth(); + depth_index = new scopeindex_t[max_depth + 1]; + depth_index[0].start_of_scope = location; + current_val = doc.tape[location++]; + current_type = uint8_t(current_val >> 56); + depth_index[0].scope_type = current_type; + tape_length = size_t(current_val & internal::JSON_VALUE_MASK); + if (location < tape_length) { + // If we make it here, then depth_capacity must >=2, but the compiler + // may not know this. + current_val = doc.tape[location]; + current_type = uint8_t(current_val >> 56); + depth++; + assert(depth < max_depth); + depth_index[depth].start_of_scope = location; + depth_index[depth].scope_type = current_type; + } +} +dom::parser::Iterator::Iterator( + const dom::parser::Iterator &o) noexcept + : doc(o.doc), + max_depth(o.depth), + depth(o.depth), + location(o.location), + tape_length(o.tape_length), + current_type(o.current_type), + current_val(o.current_val) +{ + depth_index = new scopeindex_t[max_depth+1]; + std::memcpy(depth_index, o.depth_index, (depth + 1) * sizeof(depth_index[0])); +} -namespace { -using namespace simdjson; -using namespace simdjson::dom; +dom::parser::Iterator::~Iterator() noexcept { + if (depth_index) { delete[] depth_index; } } -/** - * @private - */ -class implementation final : public simdjson::implementation { -public: - simdjson_inline implementation() : simdjson::implementation("arm64", "ARM NEON", internal::instruction_set::NEON) {} - simdjson_warn_unused error_code create_dom_parser_implementation( - size_t capacity, - size_t max_length, - std::unique_ptr& dst - ) const noexcept final; - simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; - simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; -}; +bool dom::parser::Iterator::print(std::ostream &os, bool escape_strings) const { + if (!is_ok()) { + return false; + } + switch (current_type) { + case '"': // we have a string + os << '"'; + if (escape_strings) { + os << internal::escape_json_string(std::string_view(get_string(), get_string_length())); + } else { + // was: os << get_string();, but given that we can include null chars, we + // have to do something crazier: + std::copy(get_string(), get_string() + get_string_length(), std::ostream_iterator(os)); + } + os << '"'; + break; + case 'l': // we have a long int + os << get_integer(); + break; + case 'u': + os << get_unsigned_integer(); + break; + case 'd': + os << get_double(); + break; + case 'n': // we have a null + os << "null"; + break; + case 't': // we have a true + os << "true"; + break; + case 'f': // we have a false + os << "false"; + break; + case '{': // we have an object + case '}': // we end an object + case '[': // we start an array + case ']': // we end an array + os << char(current_type); + break; + default: + return false; + } + return true; +} -} // namespace arm64 -} // namespace simdjson +bool dom::parser::Iterator::move_to(const char *pointer, + uint32_t length) { + char *new_pointer = nullptr; + if (pointer[0] == '#') { + // Converting fragment representation to string representation + new_pointer = new char[length]; + uint32_t new_length = 0; + for (uint32_t i = 1; i < length; i++) { + if (pointer[i] == '%' && pointer[i + 1] == 'x') { +#if __cpp_exceptions + try { +#endif + int fragment = + std::stoi(std::string(&pointer[i + 2], 2), nullptr, 16); + if (fragment == '\\' || fragment == '"' || (fragment <= 0x1F)) { + // escaping the character + new_pointer[new_length] = '\\'; + new_length++; + } + new_pointer[new_length] = char(fragment); + i += 3; +#if __cpp_exceptions + } catch (std::invalid_argument &) { + delete[] new_pointer; + return false; // the fragment is invalid + } +#endif + } else { + new_pointer[new_length] = pointer[i]; + } + new_length++; + } + length = new_length; + pointer = new_pointer; + } -#endif // SIMDJSON_ARM64_IMPLEMENTATION_H -/* end file include/simdjson/arm64/implementation.h */ + // saving the current state + size_t depth_s = depth; + size_t location_s = location; + uint8_t current_type_s = current_type; + uint64_t current_val_s = current_val; -/* begin file include/simdjson/arm64/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "arm64" -// #define SIMDJSON_IMPLEMENTATION arm64 -/* end file include/simdjson/arm64/begin.h */ + rewind(); // The json pointer is used from the root of the document. -// Declarations -/* begin file include/simdjson/generic/dom_parser_implementation.h */ + bool found = relative_move_to(pointer, length); + delete[] new_pointer; -namespace simdjson { -namespace arm64 { + if (!found) { + // since the pointer has found nothing, we get back to the original + // position. + depth = depth_s; + location = location_s; + current_type = current_type_s; + current_val = current_val_s; + } -// expectation: sizeof(open_container) = 64/8. -struct open_container { - uint32_t tape_index; // where, on the tape, does the scope ([,{) begins - uint32_t count; // how many elements in the scope -}; // struct open_container + return found; +} -static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); +inline bool dom::parser::Iterator::move_to(const std::string &pointer) { + return move_to(pointer.c_str(), uint32_t(pointer.length())); +} -class dom_parser_implementation final : public internal::dom_parser_implementation { -public: - /** Tape location of each open { or [ */ - std::unique_ptr open_containers{}; - /** Whether each open container is a [ or { */ - std::unique_ptr is_array{}; - /** Buffer passed to stage 1 */ - const uint8_t *buf{}; - /** Length passed to stage 1 */ - size_t len{0}; - /** Document passed to stage 2 */ - dom::document *doc{}; +inline int64_t dom::parser::Iterator::get_integer() const { + if (location + 1 >= tape_length) { + return 0; // default value in case of error + } + return static_cast(doc.tape[location + 1]); +} - inline dom_parser_implementation() noexcept; - inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; - inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; - dom_parser_implementation(const dom_parser_implementation &) = delete; - dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; +inline uint64_t dom::parser::Iterator::get_unsigned_integer() const { + if (location + 1 >= tape_length) { + return 0; // default value in case of error + } + return doc.tape[location + 1]; +} - simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; - simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; - simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; - simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; - inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; - inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; -private: - simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); +inline const char * dom::parser::Iterator::get_string() const { + return reinterpret_cast( + doc.string_buf.get() + (current_val & internal::JSON_VALUE_MASK) + sizeof(uint32_t)); +} -}; +inline uint32_t dom::parser::Iterator::get_string_length() const { + uint32_t answer; + std::memcpy(&answer, + reinterpret_cast(doc.string_buf.get() + + (current_val & internal::JSON_VALUE_MASK)), + sizeof(uint32_t)); + return answer; +} -} // namespace arm64 -} // namespace simdjson +inline double dom::parser::Iterator::get_double() const { + if (location + 1 >= tape_length) { + return std::numeric_limits::quiet_NaN(); // default value in + // case of error + } + double answer; + std::memcpy(&answer, &doc.tape[location + 1], sizeof(answer)); + return answer; +} -namespace simdjson { -namespace arm64 { +bool dom::parser::Iterator::relative_move_to(const char *pointer, + uint32_t length) { + if (length == 0) { + // returns the whole document + return true; + } -inline dom_parser_implementation::dom_parser_implementation() noexcept = default; -inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; -inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + if (pointer[0] != '/') { + // '/' must be the first character + return false; + } -// Leaving these here so they can be inlined if so desired -inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { - if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } - // Stage 1 index output - size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; - structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); - if (!structural_indexes) { _capacity = 0; return MEMALLOC; } - structural_indexes[0] = 0; - n_structural_indexes = 0; + // finding the key in an object or the index in an array + std::string key_or_index; + uint32_t offset = 1; - _capacity = capacity; - return SUCCESS; -} + // checking for the "-" case + if (is_array() && pointer[1] == '-') { + if (length != 2) { + // the pointer must be exactly "/-" + // there can't be anything more after '-' as an index + return false; + } + key_or_index = '-'; + offset = length; // will skip the loop coming right after + } -inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { - // Stage 2 stacks - open_containers.reset(new (std::nothrow) open_container[max_depth]); - is_array.reset(new (std::nothrow) bool[max_depth]); - if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + // We either transform the first reference token to a valid json key + // or we make sure it is a valid index in an array. + for (; offset < length; offset++) { + if (pointer[offset] == '/') { + // beginning of the next key or index + break; + } + if (is_array() && (pointer[offset] < '0' || pointer[offset] > '9')) { + // the index of an array must be an integer + // we also make sure std::stoi won't discard whitespaces later + return false; + } + if (pointer[offset] == '~') { + // "~1" represents "/" + if (pointer[offset + 1] == '1') { + key_or_index += '/'; + offset++; + continue; + } + // "~0" represents "~" + if (pointer[offset + 1] == '0') { + key_or_index += '~'; + offset++; + continue; + } + } + if (pointer[offset] == '\\') { + if (pointer[offset + 1] == '\\' || pointer[offset + 1] == '"' || + (pointer[offset + 1] <= 0x1F)) { + key_or_index += pointer[offset + 1]; + offset++; + continue; + } + return false; // invalid escaped character + } + if (pointer[offset] == '\"') { + // unescaped quote character. this is an invalid case. + // lets do nothing and assume most pointers will be valid. + // it won't find any corresponding json key anyway. + // return false; + } + key_or_index += pointer[offset]; + } - _max_depth = max_depth; - return SUCCESS; + bool found = false; + if (is_object()) { + if (move_to_key(key_or_index.c_str(), uint32_t(key_or_index.length()))) { + found = relative_move_to(pointer + offset, length - offset); + } + } else if (is_array()) { + if (key_or_index == "-") { // handling "-" case first + if (down()) { + while (next()) + ; // moving to the end of the array + // moving to the nonexistent value right after... + size_t npos; + if ((current_type == '[') || (current_type == '{')) { + // we need to jump + npos = uint32_t(current_val); + } else { + npos = + location + ((current_type == 'd' || current_type == 'l') ? 2 : 1); + } + location = npos; + current_val = doc.tape[npos]; + current_type = uint8_t(current_val >> 56); + return true; // how could it fail ? + } + } else { // regular numeric index + // The index can't have a leading '0' + if (key_or_index[0] == '0' && key_or_index.length() > 1) { + return false; + } + // it cannot be empty + if (key_or_index.length() == 0) { + return false; + } + // we already checked the index contains only valid digits + uint32_t index = std::stoi(key_or_index); + if (move_to_index(index)) { + found = relative_move_to(pointer + offset, length - offset); + } + } + } + + return found; } -} // namespace arm64 +SIMDJSON_POP_DISABLE_WARNINGS } // namespace simdjson -/* end file include/simdjson/generic/dom_parser_implementation.h */ -/* begin file include/simdjson/arm64/intrinsics.h */ -#ifndef SIMDJSON_ARM64_INTRINSICS_H -#define SIMDJSON_ARM64_INTRINSICS_H -// This should be the correct header whether -// you use visual studio or other compilers. -#include +#endif // SIMDJSON_DISABLE_DEPRECATED_API -static_assert(sizeof(uint8x16_t) <= simdjson::SIMDJSON_PADDING, "insufficient padding for arm64"); -#endif // SIMDJSON_ARM64_INTRINSICS_H -/* end file include/simdjson/arm64/intrinsics.h */ -/* begin file include/simdjson/arm64/bitmanipulation.h */ -#ifndef SIMDJSON_ARM64_BITMANIPULATION_H -#define SIMDJSON_ARM64_BITMANIPULATION_H +#endif // SIMDJSON_PARSEDJSON_ITERATOR_INL_H +/* end file simdjson/dom/parsedjson_iterator-inl.h */ +/* skipped duplicate #include "simdjson/dom/parser-inl.h" */ +/* skipped duplicate #include "simdjson/internal/tape_ref-inl.h" */ +/* including simdjson/dom/serialization-inl.h: #include "simdjson/dom/serialization-inl.h" */ +/* begin file simdjson/dom/serialization-inl.h */ -namespace simdjson { -namespace arm64 { -namespace { +#ifndef SIMDJSON_SERIALIZATION_INL_H +#define SIMDJSON_SERIALIZATION_INL_H -// We sometimes call trailing_zero on inputs that are zero, -// but the algorithms do not end up using the returned value. -// Sadly, sanitizers are not smart enough to figure it out. -SIMDJSON_NO_SANITIZE_UNDEFINED -// This function can be used safely even if not all bytes have been -// initialized. -// See issue https://github.com/simdjson/simdjson/issues/1965 -SIMDJSON_NO_SANITIZE_MEMORY -simdjson_inline int trailing_zeroes(uint64_t input_num) { -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - unsigned long ret; - // Search the mask data from least significant bit (LSB) - // to the most significant bit (MSB) for a set bit (1). - _BitScanForward64(&ret, input_num); - return (int)ret; -#else // SIMDJSON_REGULAR_VISUAL_STUDIO - return __builtin_ctzll(input_num); -#endif // SIMDJSON_REGULAR_VISUAL_STUDIO -} +/* skipped duplicate #include "simdjson/dom/base.h" */ +/* skipped duplicate #include "simdjson/dom/serialization.h" */ +/* skipped duplicate #include "simdjson/dom/parser.h" */ +/* skipped duplicate #include "simdjson/internal/tape_type.h" */ -/* result might be undefined when input_num is zero */ -simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { - return input_num & (input_num-1); -} +/* skipped duplicate #include "simdjson/dom/array-inl.h" */ +/* skipped duplicate #include "simdjson/dom/object-inl.h" */ +/* skipped duplicate #include "simdjson/internal/tape_ref-inl.h" */ -/* result might be undefined when input_num is zero */ -simdjson_inline int leading_zeroes(uint64_t input_num) { -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - unsigned long leading_zero = 0; - // Search the mask data from most significant bit (MSB) - // to least significant bit (LSB) for a set bit (1). - if (_BitScanReverse64(&leading_zero, input_num)) - return (int)(63 - leading_zero); - else - return 64; -#else - return __builtin_clzll(input_num); -#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +#include + +namespace simdjson { +namespace dom { +inline bool parser::print_json(std::ostream &os) const noexcept { + if (!valid) { return false; } + simdjson::internal::string_builder<> sb; + sb.append(doc.root()); + std::string_view answer = sb.str(); + os << answer; + return true; } -/* result might be undefined when input_num is zero */ -simdjson_inline int count_ones(uint64_t input_num) { - return vaddv_u8(vcnt_u8(vcreate_u8(input_num))); +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::element value) { + simdjson::internal::string_builder<> sb; + sb.append(value); + return (out << sb.str()); } +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#endif +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::array value) { + simdjson::internal::string_builder<> sb; + sb.append(value); + return (out << sb.str()); +} +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#endif +inline std::ostream& operator<<(std::ostream& out, simdjson::dom::object value) { + simdjson::internal::string_builder<> sb; + sb.append(value); + return (out << sb.str()); +} +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#endif +} // namespace dom -#if defined(__GNUC__) // catches clang and gcc -/** - * ARM has a fast 64-bit "bit reversal function" that is handy. However, - * it is not generally available as an intrinsic function under Visual - * Studio (though this might be changing). Even under clang/gcc, we - * apparently need to invoke inline assembly. +/*** + * Number utility functions + **/ +namespace { +/**@private + * Escape sequence like \b or \u0001 + * We expect that most compilers will use 8 bytes for this data structure. + **/ +struct escape_sequence { + uint8_t length; + const char string[7]; // technically, we only ever need 6 characters, we pad to 8 +}; +/**@private + * This converts a signed integer into a character sequence. + * The caller is responsible for providing enough memory (at least + * 20 characters.) + * Though various runtime libraries provide itoa functions, + * it is not part of the C++ standard. The C++17 standard + * adds the to_chars functions which would do as well, but + * we want to support C++11. */ -/* - * We use SIMDJSON_PREFER_REVERSE_BITS as a hint that algorithms that - * work well with bit reversal may use it. +static char *fast_itoa(char *output, int64_t value) noexcept { + // This is a standard implementation of itoa. + char buffer[20]; + uint64_t value_positive; + // In general, negating a signed integer is unsafe. + if(value < 0) { + *output++ = '-'; + // Doing value_positive = -value; while avoiding + // undefined behavior warnings. + // It assumes two complement's which is universal at this + // point in time. + std::memcpy(&value_positive, &value, sizeof(value)); + value_positive = (~value_positive) + 1; // this is a negation + } else { + value_positive = value; + } + // We work solely with value_positive. It *might* be easier + // for an optimizing compiler to deal with an unsigned variable + // as far as performance goes. + const char *const end_buffer = buffer + 20; + char *write_pointer = buffer + 19; + // A faster approach is possible if we expect large integers: + // unroll the loop (work in 100s, 1000s) and use some kind of + // memoization. + while(value_positive >= 10) { + *write_pointer-- = char('0' + (value_positive % 10)); + value_positive /= 10; + } + *write_pointer = char('0' + value_positive); + size_t len = end_buffer - write_pointer; + std::memcpy(output, write_pointer, len); + return output + len; +} +/**@private + * This converts an unsigned integer into a character sequence. + * The caller is responsible for providing enough memory (at least + * 19 characters.) + * Though various runtime libraries provide itoa functions, + * it is not part of the C++ standard. The C++17 standard + * adds the to_chars functions which would do as well, but + * we want to support C++11. */ -#define SIMDJSON_PREFER_REVERSE_BITS 1 - -/* reverse the bits */ -simdjson_inline uint64_t reverse_bits(uint64_t input_num) { - uint64_t rev_bits; - __asm("rbit %0, %1" : "=r"(rev_bits) : "r"(input_num)); - return rev_bits; +static char *fast_itoa(char *output, uint64_t value) noexcept { + // This is a standard implementation of itoa. + char buffer[20]; + const char *const end_buffer = buffer + 20; + char *write_pointer = buffer + 19; + // A faster approach is possible if we expect large integers: + // unroll the loop (work in 100s, 1000s) and use some kind of + // memoization. + while(value >= 10) { + *write_pointer-- = char('0' + (value % 10)); + value /= 10; + }; + *write_pointer = char('0' + value); + size_t len = end_buffer - write_pointer; + std::memcpy(output, write_pointer, len); + return output + len; } -/** - * Flips bit at index 63 - lz. Thus if you have 'leading_zeroes' leading zeroes, - * then this will set to zero the leading bit. It is possible for leading_zeroes to be - * greating or equal to 63 in which case we trigger undefined behavior, but the output - * of such undefined behavior is never used. + +} // anonymous namespace +namespace internal { + +/*** + * Minifier/formatter code. **/ -SIMDJSON_NO_SANITIZE_UNDEFINED -simdjson_inline uint64_t zero_leading_bit(uint64_t rev_bits, int leading_zeroes) { - return rev_bits ^ (uint64_t(0x8000000000000000) >> leading_zeroes); + +template +simdjson_inline void base_formatter::number(uint64_t x) { + char number_buffer[24]; + char *newp = fast_itoa(number_buffer, x); + buffer.insert(buffer.end(), number_buffer, newp); } -#endif +template +simdjson_inline void base_formatter::number(int64_t x) { + char number_buffer[24]; + char *newp = fast_itoa(number_buffer, x); + buffer.insert(buffer.end(), number_buffer, newp); +} -simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, uint64_t *result) { -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - *result = value1 + value2; - return *result < value1; -#else - return __builtin_uaddll_overflow(value1, value2, - reinterpret_cast(result)); -#endif +template +simdjson_inline void base_formatter::number(double x) { + char number_buffer[24]; + // Currently, passing the nullptr to the second argument is + // safe because our implementation does not check the second + // argument. + char *newp = internal::to_chars(number_buffer, nullptr, x); + buffer.insert(buffer.end(), number_buffer, newp); } -} // unnamed namespace -} // namespace arm64 -} // namespace simdjson +template +simdjson_inline void base_formatter::start_array() { one_char('['); } -#endif // SIMDJSON_ARM64_BITMANIPULATION_H -/* end file include/simdjson/arm64/bitmanipulation.h */ -/* begin file include/simdjson/arm64/bitmask.h */ -#ifndef SIMDJSON_ARM64_BITMASK_H -#define SIMDJSON_ARM64_BITMASK_H -namespace simdjson { -namespace arm64 { -namespace { +template +simdjson_inline void base_formatter::end_array() { one_char(']'); } -// -// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. -// -// For example, prefix_xor(00100100) == 00011100 -// -simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { - ///////////// - // We could do this with PMULL, but it is apparently slow. - // - //#ifdef __ARM_FEATURE_CRYPTO // some ARM processors lack this extension - //return vmull_p64(-1ULL, bitmask); - //#else - // Analysis by @sebpop: - // When diffing the assembly for src/stage1_find_marks.cpp I see that the eors are all spread out - // in between other vector code, so effectively the extra cycles of the sequence do not matter - // because the GPR units are idle otherwise and the critical path is on the FP side. - // Also the PMULL requires two extra fmovs: GPR->FP (3 cycles in N1, 5 cycles in A72 ) - // and FP->GPR (2 cycles on N1 and 5 cycles on A72.) - /////////// - bitmask ^= bitmask << 1; - bitmask ^= bitmask << 2; - bitmask ^= bitmask << 4; - bitmask ^= bitmask << 8; - bitmask ^= bitmask << 16; - bitmask ^= bitmask << 32; - return bitmask; +template +simdjson_inline void base_formatter::start_object() { one_char('{'); } + +template +simdjson_inline void base_formatter::end_object() { one_char('}'); } + +template +simdjson_inline void base_formatter::comma() { one_char(','); } + +template +simdjson_inline void base_formatter::true_atom() { + const char * s = "true"; + buffer.insert(buffer.end(), s, s + 4); } -} // unnamed namespace -} // namespace arm64 -} // namespace simdjson +template +simdjson_inline void base_formatter::false_atom() { + const char * s = "false"; + buffer.insert(buffer.end(), s, s + 5); +} -#endif -/* end file include/simdjson/arm64/bitmask.h */ -/* begin file include/simdjson/arm64/simd.h */ -#ifndef SIMDJSON_ARM64_SIMD_H -#define SIMDJSON_ARM64_SIMD_H +template +simdjson_inline void base_formatter::null_atom() { + const char * s = "null"; + buffer.insert(buffer.end(), s, s + 4); +} -#include +template +simdjson_inline void base_formatter::one_char(char c) { buffer.push_back(c); } +template +simdjson_inline void base_formatter::key(std::string_view unescaped) { + string(unescaped); + one_char(':'); +} -namespace simdjson { -namespace arm64 { -namespace { -namespace simd { +template +simdjson_inline void base_formatter::string(std::string_view unescaped) { + one_char('\"'); + size_t i = 0; + // Fast path for the case where we have no control character, no ", and no backslash. + // This should include most keys. + // + // We would like to use 'bool' but some compilers take offense to bitwise operation + // with bool types. + constexpr static char needs_escaping[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + for(;i + 8 <= unescaped.length(); i += 8) { + // Poor's man vectorization. This could get much faster if we used SIMD. + // + // It is not the case that replacing '|' with '||' would be neutral performance-wise. + if(needs_escaping[uint8_t(unescaped[i])] | needs_escaping[uint8_t(unescaped[i+1])] + | needs_escaping[uint8_t(unescaped[i+2])] | needs_escaping[uint8_t(unescaped[i+3])] + | needs_escaping[uint8_t(unescaped[i+4])] | needs_escaping[uint8_t(unescaped[i+5])] + | needs_escaping[uint8_t(unescaped[i+6])] | needs_escaping[uint8_t(unescaped[i+7])] + ) { break; } + } + for(;i < unescaped.length(); i++) { + if(needs_escaping[uint8_t(unescaped[i])]) { break; } + } + // The following is also possible and omits a 256-byte table, but it is slower: + // for (; (i < unescaped.length()) && (uint8_t(unescaped[i]) > 0x1F) + // && (unescaped[i] != '\"') && (unescaped[i] != '\\'); i++) {} -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO -namespace { -// Start of private section with Visual Studio workaround + // At least for long strings, the following should be fast. We could + // do better by integrating the checks and the insertion. + buffer.insert(buffer.end(), unescaped.data(), unescaped.data() + i); + // We caught a control character if we enter this loop (slow). + // Note that we are do not restart from the beginning, but rather we continue + // from the point where we encountered something that requires escaping. + for (; i < unescaped.length(); i++) { + switch (unescaped[i]) { + case '\"': + { + const char * s = "\\\""; + buffer.insert(buffer.end(), s, s + 2); + } + break; + case '\\': + { + const char * s = "\\\\"; + buffer.insert(buffer.end(), s, s + 2); + } + break; + default: + if (uint8_t(unescaped[i]) <= 0x1F) { + // If packed, this uses 8 * 32 bytes. + // Note that we expect most compilers to embed this code in the data + // section. + constexpr static escape_sequence escaped[32] = { + {6, "\\u0000"}, {6, "\\u0001"}, {6, "\\u0002"}, {6, "\\u0003"}, + {6, "\\u0004"}, {6, "\\u0005"}, {6, "\\u0006"}, {6, "\\u0007"}, + {2, "\\b"}, {2, "\\t"}, {2, "\\n"}, {6, "\\u000b"}, + {2, "\\f"}, {2, "\\r"}, {6, "\\u000e"}, {6, "\\u000f"}, + {6, "\\u0010"}, {6, "\\u0011"}, {6, "\\u0012"}, {6, "\\u0013"}, + {6, "\\u0014"}, {6, "\\u0015"}, {6, "\\u0016"}, {6, "\\u0017"}, + {6, "\\u0018"}, {6, "\\u0019"}, {6, "\\u001a"}, {6, "\\u001b"}, + {6, "\\u001c"}, {6, "\\u001d"}, {6, "\\u001e"}, {6, "\\u001f"}}; + auto u = escaped[uint8_t(unescaped[i])]; + buffer.insert(buffer.end(), u.string, u.string + u.length); + } else { + one_char(unescaped[i]); + } + } // switch + } // for + one_char('\"'); +} -/** - * make_uint8x16_t initializes a SIMD register (uint8x16_t). - * This is needed because, incredibly, the syntax uint8x16_t x = {1,2,3...} - * is not recognized under Visual Studio! This is a workaround. - * Using a std::initializer_list as a parameter resulted in - * inefficient code. With the current approach, if the parameters are - * compile-time constants, - * GNU GCC compiles it to ldr, the same as uint8x16_t x = {1,2,3...}. - * You should not use this function except for compile-time constants: - * it is not efficient. - */ -simdjson_inline uint8x16_t make_uint8x16_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, - uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8, - uint8_t x9, uint8_t x10, uint8_t x11, uint8_t x12, - uint8_t x13, uint8_t x14, uint8_t x15, uint8_t x16) { - // Doing a load like so end ups generating worse code. - // uint8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, - // x9, x10,x11,x12,x13,x14,x15,x16}; - // return vld1q_u8(array); - uint8x16_t x{}; - // incredibly, Visual Studio does not allow x[0] = x1 - x = vsetq_lane_u8(x1, x, 0); - x = vsetq_lane_u8(x2, x, 1); - x = vsetq_lane_u8(x3, x, 2); - x = vsetq_lane_u8(x4, x, 3); - x = vsetq_lane_u8(x5, x, 4); - x = vsetq_lane_u8(x6, x, 5); - x = vsetq_lane_u8(x7, x, 6); - x = vsetq_lane_u8(x8, x, 7); - x = vsetq_lane_u8(x9, x, 8); - x = vsetq_lane_u8(x10, x, 9); - x = vsetq_lane_u8(x11, x, 10); - x = vsetq_lane_u8(x12, x, 11); - x = vsetq_lane_u8(x13, x, 12); - x = vsetq_lane_u8(x14, x, 13); - x = vsetq_lane_u8(x15, x, 14); - x = vsetq_lane_u8(x16, x, 15); - return x; +template +inline void base_formatter::clear() { + buffer.clear(); } -simdjson_inline uint8x8_t make_uint8x8_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, - uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8) { - uint8x8_t x{}; - x = vset_lane_u8(x1, x, 0); - x = vset_lane_u8(x2, x, 1); - x = vset_lane_u8(x3, x, 2); - x = vset_lane_u8(x4, x, 3); - x = vset_lane_u8(x5, x, 4); - x = vset_lane_u8(x6, x, 5); - x = vset_lane_u8(x7, x, 6); - x = vset_lane_u8(x8, x, 7); - return x; +template +simdjson_inline std::string_view base_formatter::str() const { + return std::string_view(buffer.data(), buffer.size()); } -// We have to do the same work for make_int8x16_t -simdjson_inline int8x16_t make_int8x16_t(int8_t x1, int8_t x2, int8_t x3, int8_t x4, - int8_t x5, int8_t x6, int8_t x7, int8_t x8, - int8_t x9, int8_t x10, int8_t x11, int8_t x12, - int8_t x13, int8_t x14, int8_t x15, int8_t x16) { - // Doing a load like so end ups generating worse code. - // int8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, - // x9, x10,x11,x12,x13,x14,x15,x16}; - // return vld1q_s8(array); - int8x16_t x{}; - // incredibly, Visual Studio does not allow x[0] = x1 - x = vsetq_lane_s8(x1, x, 0); - x = vsetq_lane_s8(x2, x, 1); - x = vsetq_lane_s8(x3, x, 2); - x = vsetq_lane_s8(x4, x, 3); - x = vsetq_lane_s8(x5, x, 4); - x = vsetq_lane_s8(x6, x, 5); - x = vsetq_lane_s8(x7, x, 6); - x = vsetq_lane_s8(x8, x, 7); - x = vsetq_lane_s8(x9, x, 8); - x = vsetq_lane_s8(x10, x, 9); - x = vsetq_lane_s8(x11, x, 10); - x = vsetq_lane_s8(x12, x, 11); - x = vsetq_lane_s8(x13, x, 12); - x = vsetq_lane_s8(x14, x, 13); - x = vsetq_lane_s8(x15, x, 14); - x = vsetq_lane_s8(x16, x, 15); - return x; +simdjson_inline void mini_formatter::print_newline() { + return; } -// End of private section with Visual Studio workaround -} // namespace -#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline void mini_formatter::print_indents(size_t depth) { + (void)depth; + return; +} +simdjson_inline void mini_formatter::print_space() { + return; +} - template - struct simd8; +simdjson_inline void pretty_formatter::print_newline() { + one_char('\n'); +} - // - // Base class of simd8 and simd8, both of which use uint8x16_t internally. - // - template> - struct base_u8 { - uint8x16_t value; - static const int SIZE = sizeof(value); +simdjson_inline void pretty_formatter::print_indents(size_t depth) { + if(this->indent_step <= 0) { + return; + } + for(size_t i = 0; i < this->indent_step * depth; i++) { + one_char(' '); + } +} - // Conversion from/to SIMD register - simdjson_inline base_u8(const uint8x16_t _value) : value(_value) {} - simdjson_inline operator const uint8x16_t&() const { return this->value; } - simdjson_inline operator uint8x16_t&() { return this->value; } +simdjson_inline void pretty_formatter::print_space() { + one_char(' '); +} - // Bit operations - simdjson_inline simd8 operator|(const simd8 other) const { return vorrq_u8(*this, other); } - simdjson_inline simd8 operator&(const simd8 other) const { return vandq_u8(*this, other); } - simdjson_inline simd8 operator^(const simd8 other) const { return veorq_u8(*this, other); } - simdjson_inline simd8 bit_andnot(const simd8 other) const { return vbicq_u8(*this, other); } - simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } - simdjson_inline simd8& operator|=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast | other; return *this_cast; } - simdjson_inline simd8& operator&=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast & other; return *this_cast; } - simdjson_inline simd8& operator^=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast ^ other; return *this_cast; } +/*** + * String building code. + **/ - friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return vceqq_u8(lhs, rhs); } +template +inline void string_builder::append(simdjson::dom::element value) { + // using tape_type = simdjson::internal::tape_type; + size_t depth = 0; + constexpr size_t MAX_DEPTH = 16; + bool is_object[MAX_DEPTH]; + is_object[0] = false; + bool after_value = false; - template - simdjson_inline simd8 prev(const simd8 prev_chunk) const { - return vextq_u8(prev_chunk, *this, 16 - N); + internal::tape_ref iter(value.tape); + do { + // print commas after each value + if (after_value) { + format.comma(); + format.print_newline(); } - }; - // SIMD byte mask type (returned by things like eq and gt) - template<> - struct simd8: base_u8 { - typedef uint16_t bitmask_t; - typedef uint32_t bitmask2_t; + format.print_indents(depth); - static simdjson_inline simd8 splat(bool _value) { return vmovq_n_u8(uint8_t(-(!!_value))); } + // If we are in an object, print the next key and :, and skip to the next + // value. + if (is_object[depth]) { + format.key(iter.get_string_view()); + format.print_space(); + iter.json_index++; + } + switch (iter.tape_ref_type()) { - simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} - // False constructor - simdjson_inline simd8() : simd8(vdupq_n_u8(0)) {} - // Splat constructor - simdjson_inline simd8(bool _value) : simd8(splat(_value)) {} + // Arrays + case tape_type::START_ARRAY: { + // If we're too deep, we need to recurse to go deeper. + depth++; + if (simdjson_unlikely(depth >= MAX_DEPTH)) { + append(simdjson::dom::array(iter)); + iter.json_index = iter.matching_brace_index() - 1; // Jump to the ] + depth--; + break; + } - // We return uint32_t instead of uint16_t because that seems to be more efficient for most - // purposes (cutting it down to uint16_t costs performance in some compilers). - simdjson_inline uint32_t to_bitmask() const { -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - const uint8x16_t bit_mask = make_uint8x16_t(0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, - 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80); -#else - const uint8x16_t bit_mask = {0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, - 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80}; -#endif - auto minput = *this & bit_mask; - uint8x16_t tmp = vpaddq_u8(minput, minput); - tmp = vpaddq_u8(tmp, tmp); - tmp = vpaddq_u8(tmp, tmp); - return vgetq_lane_u16(vreinterpretq_u16_u8(tmp), 0); + // Output start [ + format.start_array(); + iter.json_index++; + + // Handle empty [] (we don't want to come back around and print commas) + if (iter.tape_ref_type() == tape_type::END_ARRAY) { + format.end_array(); + depth--; + break; + } + + is_object[depth] = false; + after_value = false; + format.print_newline(); + continue; } - simdjson_inline bool any() const { return vmaxvq_u8(*this) != 0; } - }; - // Unsigned bytes - template<> - struct simd8: base_u8 { - static simdjson_inline uint8x16_t splat(uint8_t _value) { return vmovq_n_u8(_value); } - static simdjson_inline uint8x16_t zero() { return vdupq_n_u8(0); } - static simdjson_inline uint8x16_t load(const uint8_t* values) { return vld1q_u8(values); } + // Objects + case tape_type::START_OBJECT: { + // If we're too deep, we need to recurse to go deeper. + depth++; + if (simdjson_unlikely(depth >= MAX_DEPTH)) { + append(simdjson::dom::object(iter)); + iter.json_index = iter.matching_brace_index() - 1; // Jump to the } + depth--; + break; + } - simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} - // Zero constructor - simdjson_inline simd8() : simd8(zero()) {} - // Array constructor - simdjson_inline simd8(const uint8_t values[16]) : simd8(load(values)) {} - // Splat constructor - simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} - // Member-by-member initialization -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - simdjson_inline simd8( - uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, - uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 - ) : simd8(make_uint8x16_t( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - )) {} -#else - simdjson_inline simd8( - uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, - uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 - ) : simd8(uint8x16_t{ - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - }) {} -#endif + // Output start { + format.start_object(); + iter.json_index++; - // Repeat 16 values as many times as necessary (usually for lookup tables) - simdjson_inline static simd8 repeat_16( - uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, - uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 - ) { - return simd8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - ); + // Handle empty {} (we don't want to come back around and print commas) + if (iter.tape_ref_type() == tape_type::END_OBJECT) { + format.end_object(); + depth--; + break; + } + + is_object[depth] = true; + after_value = false; + format.print_newline(); + continue; } - // Store to array - simdjson_inline void store(uint8_t dst[16]) const { return vst1q_u8(dst, *this); } + // Scalars + case tape_type::STRING: + format.string(iter.get_string_view()); + break; + case tape_type::INT64: + format.number(iter.next_tape_value()); + iter.json_index++; // numbers take up 2 spots, so we need to increment + // extra + break; + case tape_type::UINT64: + format.number(iter.next_tape_value()); + iter.json_index++; // numbers take up 2 spots, so we need to increment + // extra + break; + case tape_type::DOUBLE: + format.number(iter.next_tape_value()); + iter.json_index++; // numbers take up 2 spots, so we need to increment + // extra + break; + case tape_type::TRUE_VALUE: + format.true_atom(); + break; + case tape_type::FALSE_VALUE: + format.false_atom(); + break; + case tape_type::NULL_VALUE: + format.null_atom(); + break; - // Saturated math - simdjson_inline simd8 saturating_add(const simd8 other) const { return vqaddq_u8(*this, other); } - simdjson_inline simd8 saturating_sub(const simd8 other) const { return vqsubq_u8(*this, other); } + // These are impossible + case tape_type::END_ARRAY: + case tape_type::END_OBJECT: + case tape_type::ROOT: + SIMDJSON_UNREACHABLE(); + } + iter.json_index++; + after_value = true; - // Addition/subtraction are the same for signed and unsigned - simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_u8(*this, other); } - simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_u8(*this, other); } - simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } - simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + // Handle multiple ends in a row + while (depth != 0 && (iter.tape_ref_type() == tape_type::END_ARRAY || + iter.tape_ref_type() == tape_type::END_OBJECT)) { + format.print_newline(); + depth--; + format.print_indents(depth); + if (iter.tape_ref_type() == tape_type::END_ARRAY) { + format.end_array(); + } else { + format.end_object(); + } + iter.json_index++; + } - // Order-specific operations - simdjson_inline uint8_t max_val() const { return vmaxvq_u8(*this); } - simdjson_inline uint8_t min_val() const { return vminvq_u8(*this); } - simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_u8(*this, other); } - simdjson_inline simd8 min_val(const simd8 other) const { return vminq_u8(*this, other); } - simdjson_inline simd8 operator<=(const simd8 other) const { return vcleq_u8(*this, other); } - simdjson_inline simd8 operator>=(const simd8 other) const { return vcgeq_u8(*this, other); } - simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_u8(*this, other); } - simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_u8(*this, other); } - // Same as >, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. - simdjson_inline simd8 gt_bits(const simd8 other) const { return simd8(*this > other); } - // Same as <, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. - simdjson_inline simd8 lt_bits(const simd8 other) const { return simd8(*this < other); } + // Stop when we're at depth 0 + } while (depth != 0); - // Bit-specific operations - simdjson_inline simd8 any_bits_set(simd8 bits) const { return vtstq_u8(*this, bits); } - simdjson_inline bool any_bits_set_anywhere() const { return this->max_val() != 0; } - simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return (*this & bits).any_bits_set_anywhere(); } - template - simdjson_inline simd8 shr() const { return vshrq_n_u8(*this, N); } - template - simdjson_inline simd8 shl() const { return vshlq_n_u8(*this, N); } + format.print_newline(); +} - // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) - template - simdjson_inline simd8 lookup_16(simd8 lookup_table) const { - return lookup_table.apply_lookup_16_to(*this); +template +inline void string_builder::append(simdjson::dom::object value) { + format.start_object(); + auto pair = value.begin(); + auto end = value.end(); + if (pair != end) { + append(*pair); + for (++pair; pair != end; ++pair) { + format.comma(); + append(*pair); } + } + format.end_object(); +} +template +inline void string_builder::append(simdjson::dom::array value) { + format.start_array(); + auto iter = value.begin(); + auto end = value.end(); + if (iter != end) { + append(*iter); + for (++iter; iter != end; ++iter) { + format.comma(); + append(*iter); + } + } + format.end_array(); +} - // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). - // Passing a 0 value for mask would be equivalent to writing out every byte to output. - // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes - // get written. - // Design consideration: it seems like a function with the - // signature simd8 compress(uint16_t mask) would be - // sensible, but the AVX ISA makes this kind of approach difficult. - template - simdjson_inline void compress(uint16_t mask, L * output) const { - using internal::thintable_epi8; - using internal::BitsSetTable256mul2; - using internal::pshufb_combine_table; - // this particular implementation was inspired by work done by @animetosho - // we do it in two steps, first 8 bytes and then second 8 bytes - uint8_t mask1 = uint8_t(mask); // least significant 8 bits - uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits - // next line just loads the 64-bit values thintable_epi8[mask1] and - // thintable_epi8[mask2] into a 128-bit register, using only - // two instructions on most compilers. - uint64x2_t shufmask64 = {thintable_epi8[mask1], thintable_epi8[mask2]}; - uint8x16_t shufmask = vreinterpretq_u8_u64(shufmask64); - // we increment by 0x08 the second half of the mask -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - uint8x16_t inc = make_uint8x16_t(0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); -#else - uint8x16_t inc = {0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; -#endif - shufmask = vaddq_u8(shufmask, inc); - // this is the version "nearly pruned" - uint8x16_t pruned = vqtbl1q_u8(*this, shufmask); - // we still need to put the two halves together. - // we compute the popcount of the first half: - int pop1 = BitsSetTable256mul2[mask1]; - // then load the corresponding mask, what it does is to write - // only the first pop1 bytes from the first 8 bytes, and then - // it fills in with the bytes from the second 8 bytes + some filling - // at the end. - uint8x16_t compactmask = vld1q_u8(reinterpret_cast(pshufb_combine_table + pop1 * 8)); - uint8x16_t answer = vqtbl1q_u8(pruned, compactmask); - vst1q_u8(reinterpret_cast(output), answer); - } - - // Copies all bytes corresponding to a 0 in the low half of the mask (interpreted as a - // bitset) to output1, then those corresponding to a 0 in the high half to output2. - template - simdjson_inline void compress_halves(uint16_t mask, L *output1, L *output2) const { - using internal::thintable_epi8; - uint8_t mask1 = uint8_t(mask); // least significant 8 bits - uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits - uint8x8_t compactmask1 = vcreate_u8(thintable_epi8[mask1]); - uint8x8_t compactmask2 = vcreate_u8(thintable_epi8[mask2]); - // we increment by 0x08 the second half of the mask -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - uint8x8_t inc = make_uint8x8_t(0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); -#else - uint8x8_t inc = {0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; -#endif - compactmask2 = vadd_u8(compactmask2, inc); - // store each result (with the second store possibly overlapping the first) - vst1_u8((uint8_t*)output1, vqtbl1_u8(*this, compactmask1)); - vst1_u8((uint8_t*)output2, vqtbl1_u8(*this, compactmask2)); - } - - template - simdjson_inline simd8 lookup_16( - L replace0, L replace1, L replace2, L replace3, - L replace4, L replace5, L replace6, L replace7, - L replace8, L replace9, L replace10, L replace11, - L replace12, L replace13, L replace14, L replace15) const { - return lookup_16(simd8::repeat_16( - replace0, replace1, replace2, replace3, - replace4, replace5, replace6, replace7, - replace8, replace9, replace10, replace11, - replace12, replace13, replace14, replace15 - )); - } - - template - simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { - return vqtbl1q_u8(*this, simd8(original)); - } - }; - - // Signed bytes - template<> - struct simd8 { - int8x16_t value; +template +simdjson_inline void string_builder::append(simdjson::dom::key_value_pair kv) { + format.key(kv.key); + append(kv.value); +} - static simdjson_inline simd8 splat(int8_t _value) { return vmovq_n_s8(_value); } - static simdjson_inline simd8 zero() { return vdupq_n_s8(0); } - static simdjson_inline simd8 load(const int8_t values[16]) { return vld1q_s8(values); } +template +simdjson_inline void string_builder::clear() { + format.clear(); +} - // Conversion from/to SIMD register - simdjson_inline simd8(const int8x16_t _value) : value{_value} {} - simdjson_inline operator const int8x16_t&() const { return this->value; } - simdjson_inline operator int8x16_t&() { return this->value; } +template +simdjson_inline std::string_view string_builder::str() const { + return format.str(); +} - // Zero constructor - simdjson_inline simd8() : simd8(zero()) {} - // Splat constructor - simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} - // Array constructor - simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} - // Member-by-member initialization -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - simdjson_inline simd8( - int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, - int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 - ) : simd8(make_int8x16_t( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - )) {} -#else - simdjson_inline simd8( - int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, - int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 - ) : simd8(int8x16_t{ - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - }) {} -#endif - // Repeat 16 values as many times as necessary (usually for lookup tables) - simdjson_inline static simd8 repeat_16( - int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, - int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 - ) { - return simd8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - ); - } - // Store to array - simdjson_inline void store(int8_t dst[16]) const { return vst1q_s8(dst, *this); } +} // namespace internal +} // namespace simdjson - // Explicit conversion to/from unsigned - // - // Under Visual Studio/ARM64 uint8x16_t and int8x16_t are apparently the same type. - // In theory, we could check this occurrence with std::same_as and std::enabled_if but it is C++14 - // and relatively ugly and hard to read. -#ifndef SIMDJSON_REGULAR_VISUAL_STUDIO - simdjson_inline explicit simd8(const uint8x16_t other): simd8(vreinterpretq_s8_u8(other)) {} #endif - simdjson_inline explicit operator simd8() const { return vreinterpretq_u8_s8(this->value); } +/* end file simdjson/dom/serialization-inl.h */ - // Math - simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_s8(*this, other); } - simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_s8(*this, other); } - simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } - simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } +#endif // SIMDJSON_DOM_H +/* end file simdjson/dom.h */ +/* including simdjson/ondemand.h: #include "simdjson/ondemand.h" */ +/* begin file simdjson/ondemand.h */ +#ifndef SIMDJSON_ONDEMAND_H +#define SIMDJSON_ONDEMAND_H + +/* including simdjson/builtin/ondemand.h: #include "simdjson/builtin/ondemand.h" */ +/* begin file simdjson/builtin/ondemand.h */ +#ifndef SIMDJSON_BUILTIN_ONDEMAND_H +#define SIMDJSON_BUILTIN_ONDEMAND_H + +/* including simdjson/builtin.h: #include "simdjson/builtin.h" */ +/* begin file simdjson/builtin.h */ +#ifndef SIMDJSON_BUILTIN_H +#define SIMDJSON_BUILTIN_H - // Order-sensitive comparisons - simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_s8(*this, other); } - simdjson_inline simd8 min_val(const simd8 other) const { return vminq_s8(*this, other); } - simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_s8(*this, other); } - simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_s8(*this, other); } - simdjson_inline simd8 operator==(const simd8 other) const { return vceqq_s8(*this, other); } +/* including simdjson/builtin/base.h: #include "simdjson/builtin/base.h" */ +/* begin file simdjson/builtin/base.h */ +#ifndef SIMDJSON_BUILTIN_BASE_H +#define SIMDJSON_BUILTIN_BASE_H - template - simdjson_inline simd8 prev(const simd8 prev_chunk) const { - return vextq_s8(prev_chunk, *this, 16 - N); - } +/* skipped duplicate #include "simdjson/base.h" */ +/* including simdjson/implementation_detection.h: #include "simdjson/implementation_detection.h" */ +/* begin file simdjson/implementation_detection.h */ +#ifndef SIMDJSON_IMPLEMENTATION_DETECTION_H +#define SIMDJSON_IMPLEMENTATION_DETECTION_H - // Perform a lookup assuming no value is larger than 16 - template - simdjson_inline simd8 lookup_16(simd8 lookup_table) const { - return lookup_table.apply_lookup_16_to(*this); - } - template - simdjson_inline simd8 lookup_16( - L replace0, L replace1, L replace2, L replace3, - L replace4, L replace5, L replace6, L replace7, - L replace8, L replace9, L replace10, L replace11, - L replace12, L replace13, L replace14, L replace15) const { - return lookup_16(simd8::repeat_16( - replace0, replace1, replace2, replace3, - replace4, replace5, replace6, replace7, - replace8, replace9, replace10, replace11, - replace12, replace13, replace14, replace15 - )); - } +/* skipped duplicate #include "simdjson/base.h" */ - template - simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { - return vqtbl1q_s8(*this, simd8(original)); - } - }; +// 0 is reserved, because undefined SIMDJSON_IMPLEMENTATION equals 0 in preprocessor macros. +#define SIMDJSON_IMPLEMENTATION_ID_arm64 1 +#define SIMDJSON_IMPLEMENTATION_ID_fallback 2 +#define SIMDJSON_IMPLEMENTATION_ID_haswell 3 +#define SIMDJSON_IMPLEMENTATION_ID_icelake 4 +#define SIMDJSON_IMPLEMENTATION_ID_ppc64 5 +#define SIMDJSON_IMPLEMENTATION_ID_westmere 6 - template - struct simd8x64 { - static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); - static_assert(NUM_CHUNKS == 4, "ARM kernel should use four registers per 64-byte block."); - const simd8 chunks[NUM_CHUNKS]; +#define SIMDJSON_IMPLEMENTATION_ID_FOR(IMPL) SIMDJSON_CAT(SIMDJSON_IMPLEMENTATION_ID_, IMPL) +#define SIMDJSON_IMPLEMENTATION_ID SIMDJSON_IMPLEMENTATION_ID_FOR(SIMDJSON_IMPLEMENTATION) - simd8x64(const simd8x64& o) = delete; // no copy allowed - simd8x64& operator=(const simd8& other) = delete; // no assignment allowed - simd8x64() = delete; // no default constructor allowed +#define SIMDJSON_IMPLEMENTATION_IS(IMPL) SIMDJSON_IMPLEMENTATION_ID == SIMDJSON_IMPLEMENTATION_ID_FOR(IMPL) - simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} - simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} +// +// First, figure out which implementations can be run. Doing it here makes it so we don't have to worry about the order +// in which we include them. +// - simdjson_inline void store(T ptr[64]) const { - this->chunks[0].store(ptr+sizeof(simd8)*0); - this->chunks[1].store(ptr+sizeof(simd8)*1); - this->chunks[2].store(ptr+sizeof(simd8)*2); - this->chunks[3].store(ptr+sizeof(simd8)*3); - } +#ifndef SIMDJSON_IMPLEMENTATION_ARM64 +#define SIMDJSON_IMPLEMENTATION_ARM64 (SIMDJSON_IS_ARM64) +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_ARM64 SIMDJSON_IMPLEMENTATION_ARM64 && SIMDJSON_IS_ARM64 - simdjson_inline simd8 reduce_or() const { - return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); - } +// Default Icelake to on if this is x86-64. Even if we're not compiled for it, it could be selected +// at runtime. +#ifndef SIMDJSON_IMPLEMENTATION_ICELAKE +#define SIMDJSON_IMPLEMENTATION_ICELAKE ((SIMDJSON_IS_X86_64) && (SIMDJSON_AVX512_ALLOWED) && (SIMDJSON_COMPILER_SUPPORTS_VBMI2)) +#endif +#ifdef _MSC_VER +// To see why (__BMI__) && (__PCLMUL__) && (__LZCNT__) are not part of this next line, see +// https://github.com/simdjson/simdjson/issues/1247 +#define SIMDJSON_CAN_ALWAYS_RUN_ICELAKE ((SIMDJSON_IMPLEMENTATION_ICELAKE) && (__AVX2__) && (__AVX512F__) && (__AVX512DQ__) && (__AVX512CD__) && (__AVX512BW__) && (__AVX512VL__) && (__AVX512VBMI2__)) +#else +#define SIMDJSON_CAN_ALWAYS_RUN_ICELAKE ((SIMDJSON_IMPLEMENTATION_ICELAKE) && (__AVX2__) && (__BMI__) && (__PCLMUL__) && (__LZCNT__) && (__AVX512F__) && (__AVX512DQ__) && (__AVX512CD__) && (__AVX512BW__) && (__AVX512VL__) && (__AVX512VBMI2__)) +#endif - simdjson_inline uint64_t compress(uint64_t mask, T * output) const { - uint64_t popcounts = vget_lane_u64(vreinterpret_u64_u8(vcnt_u8(vcreate_u8(~mask))), 0); - // compute the prefix sum of the popcounts of each byte - uint64_t offsets = popcounts * 0x0101010101010101; - this->chunks[0].compress_halves(uint16_t(mask), output, &output[popcounts & 0xFF]); - this->chunks[1].compress_halves(uint16_t(mask >> 16), &output[(offsets >> 8) & 0xFF], &output[(offsets >> 16) & 0xFF]); - this->chunks[2].compress_halves(uint16_t(mask >> 32), &output[(offsets >> 24) & 0xFF], &output[(offsets >> 32) & 0xFF]); - this->chunks[3].compress_halves(uint16_t(mask >> 48), &output[(offsets >> 40) & 0xFF], &output[(offsets >> 48) & 0xFF]); - return offsets >> 56; - } +// Default Haswell to on if this is x86-64. Even if we're not compiled for it, it could be selected +// at runtime. +#ifndef SIMDJSON_IMPLEMENTATION_HASWELL +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +// if icelake is always available, never enable haswell. +#define SIMDJSON_IMPLEMENTATION_HASWELL 0 +#else +#define SIMDJSON_IMPLEMENTATION_HASWELL SIMDJSON_IS_X86_64 +#endif +#endif +#ifdef _MSC_VER +// To see why (__BMI__) && (__PCLMUL__) && (__LZCNT__) are not part of this next line, see +// https://github.com/simdjson/simdjson/issues/1247 +#define SIMDJSON_CAN_ALWAYS_RUN_HASWELL ((SIMDJSON_IMPLEMENTATION_HASWELL) && (SIMDJSON_IS_X86_64) && (__AVX2__)) +#else +#define SIMDJSON_CAN_ALWAYS_RUN_HASWELL ((SIMDJSON_IMPLEMENTATION_HASWELL) && (SIMDJSON_IS_X86_64) && (__AVX2__) && (__BMI__) && (__PCLMUL__) && (__LZCNT__)) +#endif - simdjson_inline uint64_t to_bitmask() const { -#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO - const uint8x16_t bit_mask = make_uint8x16_t( - 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, - 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 - ); +// Default Westmere to on if this is x86-64. +#ifndef SIMDJSON_IMPLEMENTATION_WESTMERE +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE || SIMDJSON_CAN_ALWAYS_RUN_HASWELL +// if icelake or haswell are always available, never enable westmere. +#define SIMDJSON_IMPLEMENTATION_WESTMERE 0 #else - const uint8x16_t bit_mask = { - 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, - 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 - }; +#define SIMDJSON_IMPLEMENTATION_WESTMERE SIMDJSON_IS_X86_64 #endif - // Add each of the elements next to each other, successively, to stuff each 8 byte mask into one. - uint8x16_t sum0 = vpaddq_u8(this->chunks[0] & bit_mask, this->chunks[1] & bit_mask); - uint8x16_t sum1 = vpaddq_u8(this->chunks[2] & bit_mask, this->chunks[3] & bit_mask); - sum0 = vpaddq_u8(sum0, sum1); - sum0 = vpaddq_u8(sum0, sum0); - return vgetq_lane_u64(vreinterpretq_u64_u8(sum0), 0); - } +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_WESTMERE (SIMDJSON_IMPLEMENTATION_WESTMERE && SIMDJSON_IS_X86_64 && __SSE4_2__ && __PCLMUL__) - simdjson_inline uint64_t eq(const T m) const { - const simd8 mask = simd8::splat(m); - return simd8x64( - this->chunks[0] == mask, - this->chunks[1] == mask, - this->chunks[2] == mask, - this->chunks[3] == mask - ).to_bitmask(); - } +#ifndef SIMDJSON_IMPLEMENTATION_PPC64 +#define SIMDJSON_IMPLEMENTATION_PPC64 (SIMDJSON_IS_PPC64 && SIMDJSON_IS_PPC64_VMX) +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_PPC64 SIMDJSON_IMPLEMENTATION_PPC64 && SIMDJSON_IS_PPC64 && SIMDJSON_IS_PPC64_VMX - simdjson_inline uint64_t lteq(const T m) const { - const simd8 mask = simd8::splat(m); - return simd8x64( - this->chunks[0] <= mask, - this->chunks[1] <= mask, - this->chunks[2] <= mask, - this->chunks[3] <= mask - ).to_bitmask(); - } - }; // struct simd8x64 +// Default Fallback to on unless a builtin implementation has already been selected. +#ifndef SIMDJSON_IMPLEMENTATION_FALLBACK +#if SIMDJSON_CAN_ALWAYS_RUN_ARM64 || SIMDJSON_CAN_ALWAYS_RUN_ICELAKE || SIMDJSON_CAN_ALWAYS_RUN_HASWELL || SIMDJSON_CAN_ALWAYS_RUN_WESTMERE || SIMDJSON_CAN_ALWAYS_RUN_PPC64 +// if anything at all except fallback can always run, then disable fallback. +#define SIMDJSON_IMPLEMENTATION_FALLBACK 0 +#else +#define SIMDJSON_IMPLEMENTATION_FALLBACK 1 +#endif +#endif +#define SIMDJSON_CAN_ALWAYS_RUN_FALLBACK SIMDJSON_IMPLEMENTATION_FALLBACK -} // namespace simd -} // unnamed namespace -} // namespace arm64 -} // namespace simdjson +// Determine the best builtin implementation +#ifndef SIMDJSON_BUILTIN_IMPLEMENTATION -#endif // SIMDJSON_ARM64_SIMD_H -/* end file include/simdjson/arm64/simd.h */ -/* begin file include/simdjson/generic/jsoncharutils.h */ +#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +#define SIMDJSON_BUILTIN_IMPLEMENTATION icelake +#elif SIMDJSON_CAN_ALWAYS_RUN_HASWELL +#define SIMDJSON_BUILTIN_IMPLEMENTATION haswell +#elif SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +#define SIMDJSON_BUILTIN_IMPLEMENTATION westmere +#elif SIMDJSON_CAN_ALWAYS_RUN_ARM64 +#define SIMDJSON_BUILTIN_IMPLEMENTATION arm64 +#elif SIMDJSON_CAN_ALWAYS_RUN_PPC64 +#define SIMDJSON_BUILTIN_IMPLEMENTATION ppc64 +#elif SIMDJSON_CAN_ALWAYS_RUN_FALLBACK +#define SIMDJSON_BUILTIN_IMPLEMENTATION fallback +#else +#error "All possible implementations (including fallback) have been disabled! simdjson will not run." +#endif -namespace simdjson { -namespace arm64 { -namespace { -namespace jsoncharutils { +#endif // SIMDJSON_BUILTIN_IMPLEMENTATION -// return non-zero if not a structural or whitespace char -// zero otherwise -simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { - return internal::structural_or_whitespace_negated[c]; -} +#define SIMDJSON_BUILTIN_IMPLEMENTATION_ID SIMDJSON_IMPLEMENTATION_ID_FOR(SIMDJSON_BUILTIN_IMPLEMENTATION) +#define SIMDJSON_BUILTIN_IMPLEMENTATION_IS(IMPL) SIMDJSON_BUILTIN_IMPLEMENTATION_ID == SIMDJSON_IMPLEMENTATION_ID_FOR(IMPL) -simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { - return internal::structural_or_whitespace[c]; -} +#endif // SIMDJSON_IMPLEMENTATION_DETECTION_H +/* end file simdjson/implementation_detection.h */ -// returns a value with the high 16 bits set if not valid -// otherwise returns the conversion of the 4 hex digits at src into the bottom -// 16 bits of the 32-bit return register -// -// see -// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ -static inline uint32_t hex_to_u32_nocheck( - const uint8_t *src) { // strictly speaking, static inline is a C-ism - uint32_t v1 = internal::digit_to_val32[630 + src[0]]; - uint32_t v2 = internal::digit_to_val32[420 + src[1]]; - uint32_t v3 = internal::digit_to_val32[210 + src[2]]; - uint32_t v4 = internal::digit_to_val32[0 + src[3]]; - return v1 | v2 | v3 | v4; -} +namespace simdjson { +#if SIMDJSON_BUILTIN_IMPLEMENTATION_IS(arm64) + namespace arm64 {} +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(fallback) + namespace fallback {} +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(haswell) + namespace haswell {} +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(icelake) + namespace icelake {} +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(ppc64) + namespace ppc64 {} +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(westmere) + namespace westmere {} +#else +#error Unknown SIMDJSON_BUILTIN_IMPLEMENTATION +#endif -// given a code point cp, writes to c -// the utf-8 code, outputting the length in -// bytes, if the length is zero, the code point -// is invalid -// -// This can possibly be made faster using pdep -// and clz and table lookups, but JSON documents -// have few escaped code points, and the following -// function looks cheap. -// -// Note: we assume that surrogates are treated separately -// -simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { - if (cp <= 0x7F) { - c[0] = uint8_t(cp); - return 1; // ascii - } - if (cp <= 0x7FF) { - c[0] = uint8_t((cp >> 6) + 192); - c[1] = uint8_t((cp & 63) + 128); - return 2; // universal plane - // Surrogates are treated elsewhere... - //} //else if (0xd800 <= cp && cp <= 0xdfff) { - // return 0; // surrogates // could put assert here - } else if (cp <= 0xFFFF) { - c[0] = uint8_t((cp >> 12) + 224); - c[1] = uint8_t(((cp >> 6) & 63) + 128); - c[2] = uint8_t((cp & 63) + 128); - return 3; - } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this - // is not needed - c[0] = uint8_t((cp >> 18) + 240); - c[1] = uint8_t(((cp >> 12) & 63) + 128); - c[2] = uint8_t(((cp >> 6) & 63) + 128); - c[3] = uint8_t((cp & 63) + 128); - return 4; - } - // will return 0 when the code point was too large. - return 0; // bad r -} + /** + * Represents the best statically linked simdjson implementation that can be used by the compiling + * program. + * + * Detects what options the program is compiled against, and picks the minimum implementation that + * will work on any computer that can run the program. For example, if you compile with g++ + * -march=westmere, it will pick the westmere implementation. The haswell implementation will + * still be available, and can be selected at runtime, but the builtin implementation (and any + * code that uses it) will use westmere. + */ + namespace builtin = SIMDJSON_BUILTIN_IMPLEMENTATION; +} // namespace simdjson -#if SIMDJSON_IS_32BITS // _umul128 for x86, arm -// this is a slow emulation routine for 32-bit -// -static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { - return x * (uint64_t)y; -} -static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { - uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); - uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); - uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); - uint64_t adbc_carry = !!(adbc < ad); - uint64_t lo = bd + (adbc << 32); - *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + - (adbc_carry << 32) + !!(lo < bd); - return lo; -} -#endif +#endif // SIMDJSON_BUILTIN_BASE_H +/* end file simdjson/builtin/base.h */ +/* including simdjson/builtin/implementation.h: #include "simdjson/builtin/implementation.h" */ +/* begin file simdjson/builtin/implementation.h */ +#ifndef SIMDJSON_BUILTIN_IMPLEMENTATION_H +#define SIMDJSON_BUILTIN_IMPLEMENTATION_H -using internal::value128; +/* skipped duplicate #include "simdjson/builtin/base.h" */ -simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { - value128 answer; -#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS -#ifdef _M_ARM64 - // ARM64 has native support for 64-bit multiplications, no need to emultate - answer.high = __umulh(value1, value2); - answer.low = value1 * value2; -#else - answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 -#endif // _M_ARM64 -#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS - __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; - answer.low = uint64_t(r); - answer.high = uint64_t(r >> 64); +/* including simdjson/generic/dependencies.h: #include "simdjson/generic/dependencies.h" */ +/* begin file simdjson/generic/dependencies.h */ +#ifdef SIMDJSON_CONDITIONAL_INCLUDE +#error simdjson/generic/dependencies.h must be included before defining SIMDJSON_CONDITIONAL_INCLUDE! #endif - return answer; -} -} // namespace jsoncharutils -} // unnamed namespace -} // namespace arm64 -} // namespace simdjson -/* end file include/simdjson/generic/jsoncharutils.h */ -/* begin file include/simdjson/generic/atomparsing.h */ -namespace simdjson { -namespace arm64 { -namespace { -/// @private -namespace atomparsing { +#ifndef SIMDJSON_GENERIC_DEPENDENCIES_H +#define SIMDJSON_GENERIC_DEPENDENCIES_H + +// Internal headers needed for generics. +// All includes referencing simdjson headers *not* under simdjson/generic must be here! +// Otherwise, amalgamation will fail. +/* skipped duplicate #include "simdjson/base.h" */ +/* skipped duplicate #include "simdjson/implementation.h" */ +/* skipped duplicate #include "simdjson/implementation_detection.h" */ +/* including simdjson/internal/instruction_set.h: #include "simdjson/internal/instruction_set.h" */ +/* begin file simdjson/internal/instruction_set.h */ +/* From +https://github.com/endorno/pytorch/blob/master/torch/lib/TH/generic/simd/simd.h +Highly modified. -// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. -// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot -// be certain that the character pointer will be properly aligned. -// You might think that using memcpy makes this function expensive, but you'd be wrong. -// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); -// to the compile-time constant 1936482662. -simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } +Copyright (c) 2016- Facebook, Inc (Adam Paszke) +Copyright (c) 2014- Facebook, Inc (Soumith Chintala) +Copyright (c) 2011-2014 Idiap Research Institute (Ronan Collobert) +Copyright (c) 2012-2014 Deepmind Technologies (Koray Kavukcuoglu) +Copyright (c) 2011-2012 NEC Laboratories America (Koray Kavukcuoglu) +Copyright (c) 2011-2013 NYU (Clement Farabet) +Copyright (c) 2006-2010 NEC Laboratories America (Ronan Collobert, Leon Bottou, +Iain Melvin, Jason Weston) Copyright (c) 2006 Idiap Research Institute +(Samy Bengio) Copyright (c) 2001-2004 Idiap Research Institute (Ronan Collobert, +Samy Bengio, Johnny Mariethoz) +All rights reserved. -// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. -// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. -simdjson_warn_unused -simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { - uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) - static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); - std::memcpy(&srcval, src, sizeof(uint32_t)); - return srcval ^ string_to_uint32(atom); -} +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: -simdjson_warn_unused -simdjson_inline bool is_valid_true_atom(const uint8_t *src) { - return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; -} +1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. -simdjson_warn_unused -simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { - if (len > 4) { return is_valid_true_atom(src); } - else if (len == 4) { return !str4ncmp(src, "true"); } - else { return false; } -} +2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. -simdjson_warn_unused -simdjson_inline bool is_valid_false_atom(const uint8_t *src) { - return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; -} +3. Neither the names of Facebook, Deepmind Technologies, NYU, NEC Laboratories +America and IDIAP Research Institute nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. -simdjson_warn_unused -simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { - if (len > 5) { return is_valid_false_atom(src); } - else if (len == 5) { return !str4ncmp(src+1, "alse"); } - else { return false; } -} +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF SUCH DAMAGE. +*/ -simdjson_warn_unused -simdjson_inline bool is_valid_null_atom(const uint8_t *src) { - return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; -} +#ifndef SIMDJSON_INTERNAL_INSTRUCTION_SET_H +#define SIMDJSON_INTERNAL_INSTRUCTION_SET_H -simdjson_warn_unused -simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { - if (len > 4) { return is_valid_null_atom(src); } - else if (len == 4) { return !str4ncmp(src, "null"); } - else { return false; } -} +namespace simdjson { +namespace internal { -} // namespace atomparsing -} // unnamed namespace -} // namespace arm64 +enum instruction_set { + DEFAULT = 0x0, + NEON = 0x1, + AVX2 = 0x4, + SSE42 = 0x8, + PCLMULQDQ = 0x10, + BMI1 = 0x20, + BMI2 = 0x40, + ALTIVEC = 0x80, + AVX512F = 0x100, + AVX512DQ = 0x200, + AVX512IFMA = 0x400, + AVX512PF = 0x800, + AVX512ER = 0x1000, + AVX512CD = 0x2000, + AVX512BW = 0x4000, + AVX512VL = 0x8000, + AVX512VBMI2 = 0x10000 +}; + +} // namespace internal } // namespace simdjson -/* end file include/simdjson/generic/atomparsing.h */ -/* begin file include/simdjson/arm64/stringparsing.h */ -#ifndef SIMDJSON_ARM64_STRINGPARSING_H -#define SIMDJSON_ARM64_STRINGPARSING_H +#endif // SIMDJSON_INTERNAL_INSTRUCTION_SET_H +/* end file simdjson/internal/instruction_set.h */ +/* skipped duplicate #include "simdjson/internal/dom_parser_implementation.h" */ +/* including simdjson/internal/jsoncharutils_tables.h: #include "simdjson/internal/jsoncharutils_tables.h" */ +/* begin file simdjson/internal/jsoncharutils_tables.h */ +#ifndef SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H +#define SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H + +/* skipped duplicate #include "simdjson/base.h" */ + +#ifdef JSON_TEST_STRINGS +void found_string(const uint8_t *buf, const uint8_t *parsed_begin, + const uint8_t *parsed_end); +void found_bad_string(const uint8_t *buf); +#endif namespace simdjson { -namespace arm64 { -namespace { +namespace internal { +// structural chars here are +// they are { 0x7b } 0x7d : 0x3a [ 0x5b ] 0x5d , 0x2c (and NULL) +// we are also interested in the four whitespace characters +// space 0x20, linefeed 0x0a, horizontal tab 0x09 and carriage return 0x0d -using namespace simd; +extern SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace_negated[256]; +extern SIMDJSON_DLLIMPORTEXPORT const bool structural_or_whitespace[256]; +extern SIMDJSON_DLLIMPORTEXPORT const uint32_t digit_to_val32[886]; -// Holds backslashes and quotes locations. -struct backslash_and_quote { -public: - static constexpr uint32_t BYTES_PROCESSED = 32; - simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); +} // namespace internal +} // namespace simdjson - simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } - simdjson_inline bool has_backslash() { return bs_bits != 0; } - simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } - simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } +#endif // SIMDJSON_INTERNAL_JSONCHARUTILS_TABLES_H +/* end file simdjson/internal/jsoncharutils_tables.h */ +/* including simdjson/internal/numberparsing_tables.h: #include "simdjson/internal/numberparsing_tables.h" */ +/* begin file simdjson/internal/numberparsing_tables.h */ +#ifndef SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H +#define SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H - uint32_t bs_bits; - uint32_t quote_bits; -}; // struct backslash_and_quote +/* skipped duplicate #include "simdjson/base.h" */ -simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { - // this can read up to 31 bytes beyond the buffer size, but we require - // SIMDJSON_PADDING of padding - static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); - simd8 v0(src); - simd8 v1(src + sizeof(v0)); - v0.store(dst); - v1.store(dst + sizeof(v0)); +namespace simdjson { +namespace internal { +/** + * The smallest non-zero float (binary64) is 2^-1074. + * We take as input numbers of the form w x 10^q where w < 2^64. + * We have that w * 10^-343 < 2^(64-344) 5^-343 < 2^-1076. + * However, we have that + * (2^64-1) * 10^-342 = (2^64-1) * 2^-342 * 5^-342 > 2^-1074. + * Thus it is possible for a number of the form w * 10^-342 where + * w is a 64-bit value to be a non-zero floating-point number. + ********* + * Any number of form w * 10^309 where w>= 1 is going to be + * infinite in binary64 so we never need to worry about powers + * of 5 greater than 308. + */ +constexpr int smallest_power = -342; +constexpr int largest_power = 308; - // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on ARM; therefore, we - // smash them together into a 64-byte mask and get the bitmask from there. - uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); - return { - uint32_t(bs_and_quote), // bs_bits - uint32_t(bs_and_quote >> 32) // quote_bits - }; -} +/** + * Represents a 128-bit value. + * low: least significant 64 bits. + * high: most significant 64 bits. + */ +struct value128 { + uint64_t low; + uint64_t high; +}; -} // unnamed namespace -} // namespace arm64 + +// Precomputed powers of ten from 10^0 to 10^22. These +// can be represented exactly using the double type. +extern SIMDJSON_DLLIMPORTEXPORT const double power_of_ten[]; + + +/** + * When mapping numbers from decimal to binary, + * we go from w * 10^q to m * 2^p but we have + * 10^q = 5^q * 2^q, so effectively + * we are trying to match + * w * 2^q * 5^q to m * 2^p. Thus the powers of two + * are not a concern since they can be represented + * exactly using the binary notation, only the powers of five + * affect the binary significand. + */ + + +// The truncated powers of five from 5^-342 all the way to 5^308 +// The mantissa is truncated to 128 bits, and +// never rounded up. Uses about 10KB. +extern SIMDJSON_DLLIMPORTEXPORT const uint64_t power_of_five_128[]; +} // namespace internal +} // namespace simdjson + +#endif // SIMDJSON_INTERNAL_NUMBERPARSING_TABLES_H +/* end file simdjson/internal/numberparsing_tables.h */ +/* including simdjson/internal/simdprune_tables.h: #include "simdjson/internal/simdprune_tables.h" */ +/* begin file simdjson/internal/simdprune_tables.h */ +#ifndef SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H +#define SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H + +/* skipped duplicate #include "simdjson/base.h" */ + +#include + +namespace simdjson { // table modified and copied from +namespace internal { // http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetTable + +extern SIMDJSON_DLLIMPORTEXPORT const unsigned char BitsSetTable256mul2[256]; + +extern SIMDJSON_DLLIMPORTEXPORT const uint8_t pshufb_combine_table[272]; + +// 256 * 8 bytes = 2kB, easily fits in cache. +extern SIMDJSON_DLLIMPORTEXPORT const uint64_t thintable_epi8[256]; + +} // namespace internal } // namespace simdjson -#endif // SIMDJSON_ARM64_STRINGPARSING_H -/* end file include/simdjson/arm64/stringparsing.h */ -/* begin file include/simdjson/arm64/numberparsing.h */ -#ifndef SIMDJSON_ARM64_NUMBERPARSING_H -#define SIMDJSON_ARM64_NUMBERPARSING_H +#endif // SIMDJSON_INTERNAL_SIMDPRUNE_TABLES_H +/* end file simdjson/internal/simdprune_tables.h */ + +#endif // SIMDJSON_GENERIC_DEPENDENCIES_H +/* end file simdjson/generic/dependencies.h */ + +/* defining SIMDJSON_CONDITIONAL_INCLUDE */ +#define SIMDJSON_CONDITIONAL_INCLUDE + +#if SIMDJSON_BUILTIN_IMPLEMENTATION_IS(arm64) +/* including simdjson/arm64/implementation.h: #include "simdjson/arm64/implementation.h" */ +/* begin file simdjson/arm64/implementation.h */ +#ifndef SIMDJSON_ARM64_IMPLEMENTATION_H +#define SIMDJSON_ARM64_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace arm64 { -namespace numberparsing { -// we don't have SSE, so let us use a scalar function -// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ -/** @private */ -static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { - uint64_t val; - std::memcpy(&val, chars, sizeof(uint64_t)); - val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; - val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; - return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); -} +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation("arm64", "ARM NEON", internal::instruction_set::NEON) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; -} // namespace numberparsing } // namespace arm64 } // namespace simdjson -#define SIMDJSON_SWAR_NUMBER_PARSING 1 +#endif // SIMDJSON_ARM64_IMPLEMENTATION_H +/* end file simdjson/arm64/implementation.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(fallback) +/* including simdjson/fallback/implementation.h: #include "simdjson/fallback/implementation.h" */ +/* begin file simdjson/fallback/implementation.h */ +#ifndef SIMDJSON_FALLBACK_IMPLEMENTATION_H +#define SIMDJSON_FALLBACK_IMPLEMENTATION_H -/* begin file include/simdjson/generic/numberparsing.h */ -#include +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace arm64 { -/// @private -namespace numberparsing { +namespace fallback { /** - * The type of a JSON number + * @private */ -enum class number_type { - floating_point_number=1, /// a binary64 number - signed_integer, /// a signed integer that fits in a 64-bit word using two's complement - unsigned_integer /// a positive integer larger or equal to 1<<63 +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "fallback", + "Generic fallback implementation", + 0 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; }; -#ifdef JSON_TEST_NUMBERS -#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) -#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) -#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) -#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) -#else -#define INVALID_NUMBER(SRC) (NUMBER_ERROR) -#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) -#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) -#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) -#endif +} // namespace fallback +} // namespace simdjson -namespace { +#endif // SIMDJSON_FALLBACK_IMPLEMENTATION_H +/* end file simdjson/fallback/implementation.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(haswell) +/* including simdjson/haswell/implementation.h: #include "simdjson/haswell/implementation.h" */ +/* begin file simdjson/haswell/implementation.h */ +#ifndef SIMDJSON_HASWELL_IMPLEMENTATION_H +#define SIMDJSON_HASWELL_IMPLEMENTATION_H -// Convert a mantissa, an exponent and a sign bit into an ieee64 double. -// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). -// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. -simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { - double d; - mantissa &= ~(1ULL << 52); - mantissa |= real_exponent << 52; - mantissa |= ((static_cast(negative)) << 63); - std::memcpy(&d, &mantissa, sizeof(d)); - return d; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -// Attempts to compute i * 10^(power) exactly; and if "negative" is -// true, negate the result. -// This function will only work in some cases, when it does not work, success is -// set to false. This should work *most of the time* (like 99% of the time). -// We assume that power is in the [smallest_power, -// largest_power] interval: the caller is responsible for this check. -simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { - // we start with a fast path - // It was described in - // Clinger WD. How to read floating point numbers accurately. - // ACM SIGPLAN Notices. 1990 -#ifndef FLT_EVAL_METHOD -#error "FLT_EVAL_METHOD should be defined, please include cfloat." -#endif -#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) - // We cannot be certain that x/y is rounded to nearest. - if (0 <= power && power <= 22 && i <= 9007199254740991) -#else - if (-22 <= power && power <= 22 && i <= 9007199254740991) -#endif - { - // convert the integer into a double. This is lossless since - // 0 <= i <= 2^53 - 1. - d = double(i); - // - // The general idea is as follows. - // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then - // 1) Both s and p can be represented exactly as 64-bit floating-point - // values - // (binary64). - // 2) Because s and p can be represented exactly as floating-point values, - // then s * p - // and s / p will produce correctly rounded values. - // - if (power < 0) { - d = d / simdjson::internal::power_of_ten[-power]; - } else { - d = d * simdjson::internal::power_of_ten[power]; - } - if (negative) { - d = -d; - } - return true; - } - // When 22 < power && power < 22 + 16, we could - // hope for another, secondary fast path. It was - // described by David M. Gay in "Correctly rounded - // binary-decimal and decimal-binary conversions." (1990) - // If you need to compute i * 10^(22 + x) for x < 16, - // first compute i * 10^x, if you know that result is exact - // (e.g., when i * 10^x < 2^53), - // then you can still proceed and do (i * 10^x) * 10^22. - // Is this worth your time? - // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) - // for this second fast path to work. - // If you you have 22 < power *and* power < 22 + 16, and then you - // optimistically compute "i * 10^(x-22)", there is still a chance that you - // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of - // this optimization maybe less common than we would like. Source: - // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ - // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_HASWELL +namespace simdjson { +namespace haswell { - // The fast path has now failed, so we are failing back on the slower path. +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "haswell", + "Intel/AMD AVX2", + internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; - // In the slow path, we need to adjust i so that it is > 1<<63 which is always - // possible, except if i == 0, so we handle i == 0 separately. - if(i == 0) { - d = negative ? -0.0 : 0.0; - return true; - } +} // namespace haswell +} // namespace simdjson +#endif // SIMDJSON_HASWELL_IMPLEMENTATION_H +/* end file simdjson/haswell/implementation.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(icelake) +/* including simdjson/icelake/implementation.h: #include "simdjson/icelake/implementation.h" */ +/* begin file simdjson/icelake/implementation.h */ +#ifndef SIMDJSON_ICELAKE_IMPLEMENTATION_H +#define SIMDJSON_ICELAKE_IMPLEMENTATION_H - // The exponent is 1024 + 63 + power - // + floor(log(5**power)/log(2)). - // The 1024 comes from the ieee64 standard. - // The 63 comes from the fact that we use a 64-bit word. - // - // Computing floor(log(5**power)/log(2)) could be - // slow. Instead we use a fast function. - // - // For power in (-400,350), we have that - // (((152170 + 65536) * power ) >> 16); - // is equal to - // floor(log(5**power)/log(2)) + power when power >= 0 - // and it is equal to - // ceil(log(5**-power)/log(2)) + power when power < 0 - // - // The 65536 is (1<<16) and corresponds to - // (65536 * power) >> 16 ---> power - // - // ((152170 * power ) >> 16) is equal to - // floor(log(5**power)/log(2)) - // - // Note that this is not magic: 152170/(1<<16) is - // approximatively equal to log(5)/log(2). - // The 1<<16 value is a power of two; we could use a - // larger power of 2 if we wanted to. - // - int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE +namespace simdjson { +namespace icelake { - // We want the most significant bit of i to be 1. Shift if needed. - int lz = leading_zeroes(i); - i <<= lz; +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation( + "icelake", + "Intel/AMD AVX512", + internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 | internal::instruction_set::AVX512F | internal::instruction_set::AVX512DQ | internal::instruction_set::AVX512CD | internal::instruction_set::AVX512BW | internal::instruction_set::AVX512VL | internal::instruction_set::AVX512VBMI2 + ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; +} // namespace icelake +} // namespace simdjson - // We are going to need to do some 64-bit arithmetic to get a precise product. - // We use a table lookup approach. - // It is safe because - // power >= smallest_power - // and power <= largest_power - // We recover the mantissa of the power, it has a leading 1. It is always - // rounded down. - // - // We want the most significant 64 bits of the product. We know - // this will be non-zero because the most significant bit of i is - // 1. - const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); - // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) - // - // The full_multiplication function computes the 128-bit product of two 64-bit words - // with a returned value of type value128 with a "low component" corresponding to the - // 64-bit least significant bits of the product and with a "high component" corresponding - // to the 64-bit most significant bits of the product. - simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); - // Both i and power_of_five_128[index] have their most significant bit set to 1 which - // implies that the either the most or the second most significant bit of the product - // is 1. We pack values in this manner for efficiency reasons: it maximizes the use - // we make of the product. It also makes it easy to reason about the product: there - // is 0 or 1 leading zero in the product. +#endif // SIMDJSON_ICELAKE_IMPLEMENTATION_H +/* end file simdjson/icelake/implementation.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(ppc64) +/* including simdjson/ppc64/implementation.h: #include "simdjson/ppc64/implementation.h" */ +/* begin file simdjson/ppc64/implementation.h */ +#ifndef SIMDJSON_PPC64_IMPLEMENTATION_H +#define SIMDJSON_PPC64_IMPLEMENTATION_H - // Unless the least significant 9 bits of the high (64-bit) part of the full - // product are all 1s, then we know that the most significant 55 bits are - // exact and no further work is needed. Having 55 bits is necessary because - // we need 53 bits for the mantissa but we have to have one rounding bit and - // we can waste a bit if the most significant bit of the product is zero. - if((firstproduct.high & 0x1FF) == 0x1FF) { - // We want to compute i * 5^q, but only care about the top 55 bits at most. - // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing - // the full computation is wasteful. So we do what is called a "truncated - // multiplication". - // We take the most significant 64-bits, and we put them in - // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q - // to the desired approximation using one multiplication. Sometimes it does not suffice. - // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and - // then we get a better approximation to i * 5^q. In very rare cases, even that - // will not suffice, though it is seemingly very hard to find such a scenario. - // - // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat - // more complicated. - // - // There is an extra layer of complexity in that we need more than 55 bits of - // accuracy in the round-to-even scenario. - // - // The full_multiplication function computes the 128-bit product of two 64-bit words - // with a returned value of type value128 with a "low component" corresponding to the - // 64-bit least significant bits of the product and with a "high component" corresponding - // to the 64-bit most significant bits of the product. - simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); - firstproduct.low += secondproduct.high; - if(secondproduct.high > firstproduct.low) { firstproduct.high++; } - // At this point, we might need to add at most one to firstproduct, but this - // can only change the value of firstproduct.high if firstproduct.low is maximal. - if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { - // This is very unlikely, but if so, we need to do much more work! - return false; - } - } - uint64_t lower = firstproduct.low; - uint64_t upper = firstproduct.high; - // The final mantissa should be 53 bits with a leading 1. - // We shift it so that it occupies 54 bits with a leading 1. - /////// - uint64_t upperbit = upper >> 63; - uint64_t mantissa = upper >> (upperbit + 9); - lz += int(1 ^ upperbit); +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // Here we have mantissa < (1<<54). - int64_t real_exponent = exponent - lz; - if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? - // Here have that real_exponent <= 0 so -real_exponent >= 0 - if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. - d = negative ? -0.0 : 0.0; - return true; - } - // next line is safe because -real_exponent + 1 < 0 - mantissa >>= -real_exponent + 1; - // Thankfully, we can't have both "round-to-even" and subnormals because - // "round-to-even" only occurs for powers close to 0. - mantissa += (mantissa & 1); // round up - mantissa >>= 1; - // There is a weird scenario where we don't have a subnormal but just. - // Suppose we start with 2.2250738585072013e-308, we end up - // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal - // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round - // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer - // subnormal, but we can only know this after rounding. - // So we only declare a subnormal if we are smaller than the threshold. - real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; - d = to_double(mantissa, real_exponent, negative); - return true; - } - // We have to round to even. The "to even" part - // is only a problem when we are right in between two floats - // which we guard against. - // If we have lots of trailing zeros, we may fall right between two - // floating-point values. - // - // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] - // times a power of two. That is, it is right between a number with binary significand - // m and another number with binary significand m+1; and it must be the case - // that it cannot be represented by a float itself. - // - // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. - // Recall that 10^q = 5^q * 2^q. - // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that - // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. - // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so - // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have - // 2^{53} x 5^{-q} < 2^{64}. - // Hence we have 5^{-q} < 2^{11}$ or q>= -4. - // - // We require lower <= 1 and not lower == 0 because we could not prove that - // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. - if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { - if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { - mantissa &= ~1; // flip it so that we do not round up - } - } +namespace simdjson { - mantissa += mantissa & 1; - mantissa >>= 1; +/** + * Implementation for ALTIVEC (PPC64). + */ +namespace ppc64 { - // Here we have mantissa < (1<<53), unless there was an overflow - if (mantissa >= (1ULL << 53)) { - ////////// - // This will happen when parsing values such as 7.2057594037927933e+16 - //////// - mantissa = (1ULL << 52); - real_exponent++; - } - mantissa &= ~(1ULL << 52); - // we have to check that real_exponent is in range, otherwise we bail out - if (simdjson_unlikely(real_exponent > 2046)) { - // We have an infinite value!!! We could actually throw an error here if we could. - return false; - } - d = to_double(mantissa, real_exponent, negative); - return true; -} +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() + : simdjson::implementation("ppc64", "PPC64 ALTIVEC", + internal::instruction_set::ALTIVEC) {} -// We call a fallback floating-point parser that might be slow. Note -// it will accept JSON numbers, but the JSON spec. is more restrictive so -// before you call parse_float_fallback, you need to have validated the input -// string with the JSON grammar. -// It will return an error (false) if the parsed number is infinite. -// The string parsing itself always succeeds. We know that there is at least -// one digit. -static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { - *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); - // We do not accept infinite values. + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, size_t max_length, + std::unique_ptr &dst) + const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, + uint8_t *dst, + size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, + size_t len) const noexcept final; +}; - // Detecting finite values in a portable manner is ridiculously hard, ideally - // we would want to do: - // return !std::isfinite(*outDouble); - // but that mysteriously fails under legacy/old libc++ libraries, see - // https://github.com/simdjson/simdjson/issues/1286 - // - // Therefore, fall back to this solution (the extra parens are there - // to handle that max may be a macro on windows). - return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); -} +} // namespace ppc64 +} // namespace simdjson -static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { - *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); - // We do not accept infinite values. +#endif // SIMDJSON_PPC64_IMPLEMENTATION_H +/* end file simdjson/ppc64/implementation.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(westmere) +/* including simdjson/westmere/implementation.h: #include "simdjson/westmere/implementation.h" */ +/* begin file simdjson/westmere/implementation.h */ +#ifndef SIMDJSON_WESTMERE_IMPLEMENTATION_H +#define SIMDJSON_WESTMERE_IMPLEMENTATION_H - // Detecting finite values in a portable manner is ridiculously hard, ideally - // we would want to do: - // return !std::isfinite(*outDouble); - // but that mysteriously fails under legacy/old libc++ libraries, see - // https://github.com/simdjson/simdjson/issues/1286 - // - // Therefore, fall back to this solution (the extra parens are there - // to handle that max may be a macro on windows). - return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/instruction_set.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -// check quickly whether the next 8 chars are made of digits -// at a glance, it looks better than Mula's -// http://0x80.pl/articles/swar-digits-validate.html -simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { - uint64_t val; - // this can read up to 7 bytes beyond the buffer size, but we require - // SIMDJSON_PADDING of padding - static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); - std::memcpy(&val, chars, 8); - // a branchy method might be faster: - // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) - // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == - // 0x3030303030303030); - return (((val & 0xF0F0F0F0F0F0F0F0) | - (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == - 0x3333333333333333); -} +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +namespace westmere { -template -SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later -simdjson_inline bool parse_digit(const uint8_t c, I &i) { - const uint8_t digit = static_cast(c - '0'); - if (digit > 9) { - return false; - } - // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication - i = 10 * i + digit; // might overflow, we will handle the overflow later - return true; -} +/** + * @private + */ +class implementation final : public simdjson::implementation { +public: + simdjson_inline implementation() : simdjson::implementation("westmere", "Intel/AMD SSE4.2", internal::instruction_set::SSE42 | internal::instruction_set::PCLMULQDQ) {} + simdjson_warn_unused error_code create_dom_parser_implementation( + size_t capacity, + size_t max_length, + std::unique_ptr& dst + ) const noexcept final; + simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; + simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; +}; -simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { - // we continue with the fiction that we have an integer. If the - // floating point number is representable as x * 10^z for some integer - // z that fits in 53 bits, then we will be able to convert back the - // the integer into a float in a lossless manner. - const uint8_t *const first_after_period = p; +} // namespace westmere +} // namespace simdjson -#ifdef SIMDJSON_SWAR_NUMBER_PARSING -#if SIMDJSON_SWAR_NUMBER_PARSING - // this helps if we have lots of decimals! - // this turns out to be frequent enough. - if (is_made_of_eight_digits_fast(p)) { - i = i * 100000000 + parse_eight_digits_unrolled(p); - p += 8; - } -#endif // SIMDJSON_SWAR_NUMBER_PARSING -#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING - // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) - if (parse_digit(*p, i)) { ++p; } - while (parse_digit(*p, i)) { p++; } - exponent = first_after_period - p; - // Decimal without digits (123.) is illegal - if (exponent == 0) { - return INVALID_NUMBER(src); - } - return SUCCESS; -} +#endif // SIMDJSON_WESTMERE_IMPLEMENTATION_H +/* end file simdjson/westmere/implementation.h */ +#else +#error Unknown SIMDJSON_BUILTIN_IMPLEMENTATION +#endif -simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { - // Exp Sign: -123.456e[-]78 - bool neg_exp = ('-' == *p); - if (neg_exp || '+' == *p) { p++; } // Skip + as well +/* undefining SIMDJSON_CONDITIONAL_INCLUDE */ +#undef SIMDJSON_CONDITIONAL_INCLUDE - // Exponent: -123.456e-[78] - auto start_exp = p; - int64_t exp_number = 0; - while (parse_digit(*p, exp_number)) { ++p; } - // It is possible for parse_digit to overflow. - // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. - // Thus we *must* check for possible overflow before we negate exp_number. +namespace simdjson { + /** + * Function which returns a pointer to an implementation matching the "builtin" implementation. + * The builtin implementation is the best statically linked simdjson implementation that can be used by the compiling + * program. If you compile with g++ -march=haswell, this will return the haswell implementation. + * It is handy to be able to check what builtin was used: builtin_implementation()->name(). + */ + const implementation * builtin_implementation(); +} // namespace simdjson - // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into - // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may - // not oblige and may, in fact, generate two distinct paths in any case. It might be - // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off - // instructions for a simdjson_likely branch, an unconclusive gain. +#endif // SIMDJSON_BUILTIN_IMPLEMENTATION_H +/* end file simdjson/builtin/implementation.h */ - // If there were no digits, it's an error. - if (simdjson_unlikely(p == start_exp)) { - return INVALID_NUMBER(src); - } - // We have a valid positive exponent in exp_number at this point, except that - // it may have overflowed. +/* skipped duplicate #include "simdjson/generic/dependencies.h" */ - // If there were more than 18 digits, we may have overflowed the integer. We have to do - // something!!!! - if (simdjson_unlikely(p > start_exp+18)) { - // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow - while (*start_exp == '0') { start_exp++; } - // 19 digits could overflow int64_t and is kind of absurd anyway. We don't - // support exponents smaller than -999,999,999,999,999,999 and bigger - // than 999,999,999,999,999,999. - // We can truncate. - // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before - // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could - // truncate at 324. - // Note that there is no reason to fail per se at this point in time. - // E.g., 0e999999999999999999999 is a fine number. - if (p > start_exp+18) { exp_number = 999999999999999999; } - } - // At this point, we know that exp_number is a sane, positive, signed integer. - // It is <= 999,999,999,999,999,999. As long as 'exponent' is in - // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' - // is bounded in magnitude by the size of the JSON input, we are fine in this universe. - // To sum it up: the next line should never overflow. - exponent += (neg_exp ? -exp_number : exp_number); - return SUCCESS; -} +/* defining SIMDJSON_CONDITIONAL_INCLUDE */ +#define SIMDJSON_CONDITIONAL_INCLUDE -simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { - // It is possible that the integer had an overflow. - // We have to handle the case where we have 0.0000somenumber. - const uint8_t *start = start_digits; - while ((*start == '0') || (*start == '.')) { ++start; } - // we over-decrement by one when there is a '.' - return digit_count - size_t(start - start_digits); -} +#if SIMDJSON_BUILTIN_IMPLEMENTATION_IS(arm64) +/* including simdjson/arm64.h: #include "simdjson/arm64.h" */ +/* begin file simdjson/arm64.h */ +#ifndef SIMDJSON_ARM64_H +#define SIMDJSON_ARM64_H + +/* including simdjson/arm64/begin.h: #include "simdjson/arm64/begin.h" */ +/* begin file simdjson/arm64/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "arm64" */ +#define SIMDJSON_IMPLEMENTATION arm64 +/* including simdjson/arm64/base.h: #include "simdjson/arm64/base.h" */ +/* begin file simdjson/arm64/base.h */ +#ifndef SIMDJSON_ARM64_BASE_H +#define SIMDJSON_ARM64_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Implementation for NEON (ARMv8). + */ +namespace arm64 { +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd } // unnamed namespace -/** @private */ -template -error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { - double d; - if (parse_float_fallback(src, &d)) { - writer.append_double(d); - return SUCCESS; - } - return INVALID_NUMBER(src); -} +} // namespace arm64 +} // namespace simdjson -/** @private */ -template -simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { - // If we frequently had to deal with long strings of digits, - // we could extend our code by using a 128-bit integer instead - // of a 64-bit integer. However, this is uncommon in practice. - // - // 9999999999999999999 < 2**64 so we can accommodate 19 digits. - // If we have a decimal separator, then digit_count - 1 is the number of digits, but we - // may not have a decimal separator! - if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { - // Ok, chances are good that we had an overflow! - // this is almost never going to get called!!! - // we start anew, going slowly!!! - // This will happen in the following examples: - // 10000000000000000000000000000000000000000000e+308 - // 3.1415926535897932384626433832795028841971693993751 - // - // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens - // because slow_float_parsing is a non-inlined function. If we passed our writer reference to - // it, it would force it to be stored in memory, preventing the compiler from picking it apart - // and putting into registers. i.e. if we pass it as reference, it gets slow. - // This is what forces the skip_double, as well. - error_code error = slow_float_parsing(src, writer); - writer.skip_double(); - return error; - } - // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other - // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 - // To future reader: we'd love if someone found a better way, or at least could explain this result! - if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { - // - // Important: smallest_power is such that it leads to a zero value. - // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero - // so something x 10^-343 goes to zero, but not so with something x 10^-342. - static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); - // - if((exponent < simdjson::internal::smallest_power) || (i == 0)) { - // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero - WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); - return SUCCESS; - } else { // (exponent > largest_power) and (i != 0) - // We have, for sure, an infinite value and simdjson refuses to parse infinite values. - return INVALID_NUMBER(src); - } - } - double d; - if (!compute_float_64(exponent, i, negative, d)) { - // we are almost never going to get here. - if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } - } - WRITE_DOUBLE(d, src, writer); - return SUCCESS; -} +#endif // SIMDJSON_ARM64_BASE_H +/* end file simdjson/arm64/base.h */ +/* including simdjson/arm64/intrinsics.h: #include "simdjson/arm64/intrinsics.h" */ +/* begin file simdjson/arm64/intrinsics.h */ +#ifndef SIMDJSON_ARM64_INTRINSICS_H +#define SIMDJSON_ARM64_INTRINSICS_H -// for performance analysis, it is sometimes useful to skip parsing -#ifdef SIMDJSON_SKIPNUMBERPARSING +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -template -simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { - writer.append_s64(0); // always write zero - return SUCCESS; // always succeeds -} +// This should be the correct header whether +// you use visual studio or other compilers. +#include -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } -simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } -simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } -#else +static_assert(sizeof(uint8x16_t) <= simdjson::SIMDJSON_PADDING, "insufficient padding for arm64"); -// parse the number at src -// define JSON_TEST_NUMBERS for unit testing -// -// It is assumed that the number is followed by a structural ({,},],[) character -// or a white space character. If that is not the case (e.g., when the JSON -// document is made of a single number), then it is necessary to copy the -// content and append a space before calling this function. -// -// Our objective is accurate parsing (ULP of 0) at high speed. -template -simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { +#endif // SIMDJSON_ARM64_INTRINSICS_H +/* end file simdjson/arm64/intrinsics.h */ +/* including simdjson/arm64/bitmanipulation.h: #include "simdjson/arm64/bitmanipulation.h" */ +/* begin file simdjson/arm64/bitmanipulation.h */ +#ifndef SIMDJSON_ARM64_BITMANIPULATION_H +#define SIMDJSON_ARM64_BITMANIPULATION_H - // - // Check for minus sign - // - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } +namespace simdjson { +namespace arm64 { +namespace { - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} - // - // Handle floats if there is a . or e (or both) - // - int64_t exponent = 0; - bool is_float = false; - if ('.' == *p) { - is_float = true; - ++p; - SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); - digit_count = int(p - start_digits); // used later to guard against overflows - } - if (('e' == *p) || ('E' == *p)) { - is_float = true; - ++p; - SIMDJSON_TRY( parse_exponent(src, p, exponent) ); - } - if (is_float) { - const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); - SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); - if (dirty_end) { return INVALID_NUMBER(src); } - return SUCCESS; - } +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} - // The longest negative 64-bit number is 19 digits. - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - size_t longest_digit_count = negative ? 19 : 20; - if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } - if (digit_count == longest_digit_count) { - if (negative) { - // Anything negative above INT64_MAX+1 is invalid - if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } - WRITE_INTEGER(~i+1, src, writer); - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } - return SUCCESS; - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } - } +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} - // Write unsigned if it doesn't fit in a signed integer. - if (i > uint64_t(INT64_MAX)) { - WRITE_UNSIGNED(i, src, writer); - } else { - WRITE_INTEGER(negative ? (~i+1) : i, src, writer); - } - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } - return SUCCESS; +/* result might be undefined when input_num is zero */ +simdjson_inline int count_ones(uint64_t input_num) { + return vaddv_u8(vcnt_u8(vcreate_u8(input_num))); } -// Inlineable functions -namespace { -// This table can be used to characterize the final character of an integer -// string. For JSON structural character and allowable white space characters, -// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise -// we return NUMBER_ERROR. -// Optimization note: we could easily reduce the size of the table by half (to 128) -// at the cost of an extra branch. -// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): -static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); -static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); -static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); +#if defined(__GNUC__) // catches clang and gcc +/** + * ARM has a fast 64-bit "bit reversal function" that is handy. However, + * it is not generally available as an intrinsic function under Visual + * Studio (though this might be changing). Even under clang/gcc, we + * apparently need to invoke inline assembly. + */ +/* + * We use SIMDJSON_PREFER_REVERSE_BITS as a hint that algorithms that + * work well with bit reversal may use it. + */ +#define SIMDJSON_PREFER_REVERSE_BITS 1 -const uint8_t integer_string_finisher[256] = { - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, - SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, - NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR}; - -// Parse any number from 0 to 18,446,744,073,709,551,615 -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { - const uint8_t *p = src; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } - - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } - - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } - } - - return i; +/* reverse the bits */ +simdjson_inline uint64_t reverse_bits(uint64_t input_num) { + uint64_t rev_bits; + __asm("rbit %0, %1" : "=r"(rev_bits) : "r"(input_num)); + return rev_bits; } +/** + * Flips bit at index 63 - lz. Thus if you have 'leading_zeroes' leading zeroes, + * then this will set to zero the leading bit. It is possible for leading_zeroes to be + * greating or equal to 63 in which case we trigger undefined behavior, but the output + * of such undefined behavior is never used. + **/ +SIMDJSON_NO_SANITIZE_UNDEFINED +simdjson_inline uint64_t zero_leading_bit(uint64_t rev_bits, int leading_zeroes) { + return rev_bits ^ (uint64_t(0x8000000000000000) >> leading_zeroes); +} -// Parse any number from 0 to 18,446,744,073,709,551,615 -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { - const uint8_t *p = src; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while ((p != src_end) && parse_digit(*p, i)) { p++; } - - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } - - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } - } +#endif - return i; +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, uint64_t *result) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif } -// Parse any number from 0 to 18,446,744,073,709,551,615 -simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { - const uint8_t *p = src + 1; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } - - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if (*p != '"') { return NUMBER_ERROR; } +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - // Note: we use src[1] and not src[0] because src[0] is the quote character in this - // instance. - if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } - } +#endif // SIMDJSON_ARM64_BITMANIPULATION_H +/* end file simdjson/arm64/bitmanipulation.h */ +/* including simdjson/arm64/bitmask.h: #include "simdjson/arm64/bitmask.h" */ +/* begin file simdjson/arm64/bitmask.h */ +#ifndef SIMDJSON_ARM64_BITMASK_H +#define SIMDJSON_ARM64_BITMASK_H - return i; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { - // - // Check for minus sign - // - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); +namespace simdjson { +namespace arm64 { +namespace { +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + ///////////// + // We could do this with PMULL, but it is apparently slow. // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } - - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; + //#ifdef __ARM_FEATURE_CRYPTO // some ARM processors lack this extension + //return vmull_p64(-1ULL, bitmask); + //#else + // Analysis by @sebpop: + // When diffing the assembly for src/stage1_find_marks.cpp I see that the eors are all spread out + // in between other vector code, so effectively the extra cycles of the sequence do not matter + // because the GPR units are idle otherwise and the critical path is on the FP side. + // Also the PMULL requires two extra fmovs: GPR->FP (3 cycles in N1, 5 cycles in A72 ) + // and FP->GPR (2 cycles on N1 and 5 cycles on A72.) + /////////// + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; } -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { - // - // Check for minus sign - // - if(src == src_end) { return NUMBER_ERROR; } - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while ((p != src_end) && parse_digit(*p, i)) { p++; } +#endif +/* end file simdjson/arm64/bitmask.h */ +/* including simdjson/arm64/numberparsing_defs.h: #include "simdjson/arm64/numberparsing_defs.h" */ +/* begin file simdjson/arm64/numberparsing_defs.h */ +#ifndef SIMDJSON_ARM64_NUMBERPARSING_DEFS_H +#define SIMDJSON_ARM64_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; -} +#include -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { - // - // Check for minus sign - // - bool negative = (*(src + 1) == '-'); - src += uint8_t(negative) + 1; +#if _M_ARM64 +// __umulh requires intrin.h +#include +#endif // _M_ARM64 - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = src; - uint64_t i = 0; - while (parse_digit(*src, i)) { src++; } +namespace simdjson { +namespace arm64 { +namespace numberparsing { - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(src - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*src)) { - // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if(*src != '"') { return NUMBER_ERROR; } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; +// we don't have SSE, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); } -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { - // - // Check for minus sign - // - bool negative = (*src == '-'); - src += uint8_t(negative); - - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while (parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } - - // - // Parse the decimal part. - // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely(*p == '.')) { - p++; - const uint8_t *start_decimal_digits = p; - if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while (parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; - } - } else { - overflow = p-src > 19; - } +} // namespace numberparsing +} // namespace arm64 +} // namespace simdjson - // - // Parse the exponent - // - if (*p == 'e' || *p == 'E') { - p++; - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; +#define SIMDJSON_SWAR_NUMBER_PARSING 1 - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while (parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } +#endif // SIMDJSON_ARM64_NUMBERPARSING_DEFS_H +/* end file simdjson/arm64/numberparsing_defs.h */ +/* including simdjson/arm64/simd.h: #include "simdjson/arm64/simd.h" */ +/* begin file simdjson/arm64/simd.h */ +#ifndef SIMDJSON_ARM64_SIMD_H +#define SIMDJSON_ARM64_SIMD_H - exponent += exp_neg ? 0-exp : exp; - } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } +namespace simdjson { +namespace arm64 { +namespace { +namespace simd { - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO +namespace { +// Start of private section with Visual Studio workaround - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), &d)) { - return NUMBER_ERROR; - } - return d; -} -simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { - return (*src == '-'); +/** + * make_uint8x16_t initializes a SIMD register (uint8x16_t). + * This is needed because, incredibly, the syntax uint8x16_t x = {1,2,3...} + * is not recognized under Visual Studio! This is a workaround. + * Using a std::initializer_list as a parameter resulted in + * inefficient code. With the current approach, if the parameters are + * compile-time constants, + * GNU GCC compiles it to ldr, the same as uint8x16_t x = {1,2,3...}. + * You should not use this function except for compile-time constants: + * it is not efficient. + */ +simdjson_inline uint8x16_t make_uint8x16_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8, + uint8_t x9, uint8_t x10, uint8_t x11, uint8_t x12, + uint8_t x13, uint8_t x14, uint8_t x15, uint8_t x16) { + // Doing a load like so end ups generating worse code. + // uint8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_u8(array); + uint8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_u8(x1, x, 0); + x = vsetq_lane_u8(x2, x, 1); + x = vsetq_lane_u8(x3, x, 2); + x = vsetq_lane_u8(x4, x, 3); + x = vsetq_lane_u8(x5, x, 4); + x = vsetq_lane_u8(x6, x, 5); + x = vsetq_lane_u8(x7, x, 6); + x = vsetq_lane_u8(x8, x, 7); + x = vsetq_lane_u8(x9, x, 8); + x = vsetq_lane_u8(x10, x, 9); + x = vsetq_lane_u8(x11, x, 10); + x = vsetq_lane_u8(x12, x, 11); + x = vsetq_lane_u8(x13, x, 12); + x = vsetq_lane_u8(x14, x, 13); + x = vsetq_lane_u8(x15, x, 14); + x = vsetq_lane_u8(x16, x, 15); + return x; } -simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { - bool negative = (*src == '-'); - src += uint8_t(negative); - const uint8_t *p = src; - while(static_cast(*p - '0') <= 9) { p++; } - if ( p == src ) { return NUMBER_ERROR; } - if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } - return false; +simdjson_inline uint8x8_t make_uint8x8_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8) { + uint8x8_t x{}; + x = vset_lane_u8(x1, x, 0); + x = vset_lane_u8(x2, x, 1); + x = vset_lane_u8(x3, x, 2); + x = vset_lane_u8(x4, x, 3); + x = vset_lane_u8(x5, x, 4); + x = vset_lane_u8(x6, x, 5); + x = vset_lane_u8(x7, x, 6); + x = vset_lane_u8(x8, x, 7); + return x; } -simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { - bool negative = (*src == '-'); - src += uint8_t(negative); - const uint8_t *p = src; - while(static_cast(*p - '0') <= 9) { p++; } - if ( p == src ) { return NUMBER_ERROR; } - if (jsoncharutils::is_structural_or_whitespace(*p)) { - // We have an integer. - // If the number is negative and valid, it must be a signed integer. - if(negative) { return number_type::signed_integer; } - // We want values larger or equal to 9223372036854775808 to be unsigned - // integers, and the other values to be signed integers. - int digit_count = int(p - src); - if(digit_count >= 19) { - const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); - if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { - return number_type::unsigned_integer; - } - } - return number_type::signed_integer; - } - // Hopefully, we have 'e' or 'E' or '.'. - return number_type::floating_point_number; +// We have to do the same work for make_int8x16_t +simdjson_inline int8x16_t make_int8x16_t(int8_t x1, int8_t x2, int8_t x3, int8_t x4, + int8_t x5, int8_t x6, int8_t x7, int8_t x8, + int8_t x9, int8_t x10, int8_t x11, int8_t x12, + int8_t x13, int8_t x14, int8_t x15, int8_t x16) { + // Doing a load like so end ups generating worse code. + // int8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_s8(array); + int8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_s8(x1, x, 0); + x = vsetq_lane_s8(x2, x, 1); + x = vsetq_lane_s8(x3, x, 2); + x = vsetq_lane_s8(x4, x, 3); + x = vsetq_lane_s8(x5, x, 4); + x = vsetq_lane_s8(x6, x, 5); + x = vsetq_lane_s8(x7, x, 6); + x = vsetq_lane_s8(x8, x, 7); + x = vsetq_lane_s8(x9, x, 8); + x = vsetq_lane_s8(x10, x, 9); + x = vsetq_lane_s8(x11, x, 10); + x = vsetq_lane_s8(x12, x, 11); + x = vsetq_lane_s8(x13, x, 12); + x = vsetq_lane_s8(x14, x, 13); + x = vsetq_lane_s8(x15, x, 14); + x = vsetq_lane_s8(x16, x, 15); + return x; } -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { - if(src == src_end) { return NUMBER_ERROR; } - // - // Check for minus sign - // - bool negative = (*src == '-'); - src += uint8_t(negative); +// End of private section with Visual Studio workaround +} // namespace +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - if(p == src_end) { return NUMBER_ERROR; } - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while ((p != src_end) && parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + template + struct simd8; // - // Parse the decimal part. + // Base class of simd8 and simd8, both of which use uint8x16_t internally. // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely((p != src_end) && (*p == '.'))) { - p++; - const uint8_t *start_decimal_digits = p; - if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while ((p != src_end) && parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); + template> + struct base_u8 { + uint8x16_t value; + static const int SIZE = sizeof(value); - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; - } - } else { - overflow = p-src > 19; - } + // Conversion from/to SIMD register + simdjson_inline base_u8(const uint8x16_t _value) : value(_value) {} + simdjson_inline operator const uint8x16_t&() const { return this->value; } + simdjson_inline operator uint8x16_t&() { return this->value; } - // - // Parse the exponent - // - if ((p != src_end) && (*p == 'e' || *p == 'E')) { - p++; - if(p == src_end) { return NUMBER_ERROR; } - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; + // Bit operations + simdjson_inline simd8 operator|(const simd8 other) const { return vorrq_u8(*this, other); } + simdjson_inline simd8 operator&(const simd8 other) const { return vandq_u8(*this, other); } + simdjson_inline simd8 operator^(const simd8 other) const { return veorq_u8(*this, other); } + simdjson_inline simd8 bit_andnot(const simd8 other) const { return vbicq_u8(*this, other); } + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + simdjson_inline simd8& operator|=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline simd8& operator&=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline simd8& operator^=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast ^ other; return *this_cast; } - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while ((p != src_end) && parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return vceqq_u8(lhs, rhs); } - exponent += exp_neg ? 0-exp : exp; - } + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_u8(prev_chunk, *this, 16 - N); + } + }; - if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base_u8 { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + static simdjson_inline simd8 splat(bool _value) { return vmovq_n_u8(uint8_t(-(!!_value))); } - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { - return NUMBER_ERROR; - } - return d; -} + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // False constructor + simdjson_inline simd8() : simd8(vdupq_n_u8(0)) {} + // Splat constructor + simdjson_inline simd8(bool _value) : simd8(splat(_value)) {} -simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { - // - // Check for minus sign - // - bool negative = (*(src + 1) == '-'); - src += uint8_t(negative) + 1; + // We return uint32_t instead of uint16_t because that seems to be more efficient for most + // purposes (cutting it down to uint16_t costs performance in some compilers). + simdjson_inline uint32_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t(0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80); +#else + const uint8x16_t bit_mask = {0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80}; +#endif + auto minput = *this & bit_mask; + uint8x16_t tmp = vpaddq_u8(minput, minput); + tmp = vpaddq_u8(tmp, tmp); + tmp = vpaddq_u8(tmp, tmp); + return vgetq_lane_u16(vreinterpretq_u16_u8(tmp), 0); + } + simdjson_inline bool any() const { return vmaxvq_u8(*this) != 0; } + }; - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while (parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + // Unsigned bytes + template<> + struct simd8: base_u8 { + static simdjson_inline uint8x16_t splat(uint8_t _value) { return vmovq_n_u8(_value); } + static simdjson_inline uint8x16_t zero() { return vdupq_n_u8(0); } + static simdjson_inline uint8x16_t load(const uint8_t* values) { return vld1q_u8(values); } - // - // Parse the decimal part. - // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely(*p == '.')) { - p++; - const uint8_t *start_decimal_digits = p; - if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while (parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[16]) : simd8(load(values)) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(make_uint8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(uint8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); } - } else { - overflow = p-src > 19; - } - // - // Parse the exponent - // - if (*p == 'e' || *p == 'E') { - p++; - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; + // Store to array + simdjson_inline void store(uint8_t dst[16]) const { return vst1q_u8(dst, *this); } - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while (parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return vqaddq_u8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return vqsubq_u8(*this, other); } - exponent += exp_neg ? 0-exp : exp; - } + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_u8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_u8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } - if (*p != '"') { return NUMBER_ERROR; } + // Order-specific operations + simdjson_inline uint8_t max_val() const { return vmaxvq_u8(*this); } + simdjson_inline uint8_t min_val() const { return vminvq_u8(*this); } + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_u8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_u8(*this, other); } + simdjson_inline simd8 operator<=(const simd8 other) const { return vcleq_u8(*this, other); } + simdjson_inline simd8 operator>=(const simd8 other) const { return vcgeq_u8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_u8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_u8(*this, other); } + // Same as >, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 gt_bits(const simd8 other) const { return simd8(*this > other); } + // Same as <, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 lt_bits(const simd8 other) const { return simd8(*this < other); } - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + // Bit-specific operations + simdjson_inline simd8 any_bits_set(simd8 bits) const { return vtstq_u8(*this, bits); } + simdjson_inline bool any_bits_set_anywhere() const { return this->max_val() != 0; } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return (*this & bits).any_bits_set_anywhere(); } + template + simdjson_inline simd8 shr() const { return vshrq_n_u8(*this, N); } + template + simdjson_inline simd8 shl() const { return vshlq_n_u8(*this, N); } - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), &d)) { - return NUMBER_ERROR; - } - return d; -} + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } -} // unnamed namespace -#endif // SIMDJSON_SKIPNUMBERPARSING -inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { - switch (type) { - case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; - case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; - case number_type::floating_point_number: out << "floating-point number (binary64)"; break; - default: SIMDJSON_UNREACHABLE(); + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint16_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + uint64x2_t shufmask64 = {thintable_epi8[mask1], thintable_epi8[mask2]}; + uint8x16_t shufmask = vreinterpretq_u8_u64(shufmask64); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x16_t inc = make_uint8x16_t(0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x16_t inc = {0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + shufmask = vaddq_u8(shufmask, inc); + // this is the version "nearly pruned" + uint8x16_t pruned = vqtbl1q_u8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + uint8x16_t compactmask = vld1q_u8(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + uint8x16_t answer = vqtbl1q_u8(pruned, compactmask); + vst1q_u8(reinterpret_cast(output), answer); } - return out; -} - -} // namespace numberparsing -} // namespace arm64 -} // namespace simdjson -/* end file include/simdjson/generic/numberparsing.h */ -#endif // SIMDJSON_ARM64_NUMBERPARSING_H -/* end file include/simdjson/arm64/numberparsing.h */ -/* begin file include/simdjson/arm64/end.h */ -/* end file include/simdjson/arm64/end.h */ + // Copies all bytes corresponding to a 0 in the low half of the mask (interpreted as a + // bitset) to output1, then those corresponding to a 0 in the high half to output2. + template + simdjson_inline void compress_halves(uint16_t mask, L *output1, L *output2) const { + using internal::thintable_epi8; + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + uint8x8_t compactmask1 = vcreate_u8(thintable_epi8[mask1]); + uint8x8_t compactmask2 = vcreate_u8(thintable_epi8[mask2]); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x8_t inc = make_uint8x8_t(0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x8_t inc = {0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + compactmask2 = vadd_u8(compactmask2, inc); + // store each result (with the second store possibly overlapping the first) + vst1_u8((uint8_t*)output1, vqtbl1_u8(*this, compactmask1)); + vst1_u8((uint8_t*)output2, vqtbl1_u8(*this, compactmask2)); + } -#endif // SIMDJSON_IMPLEMENTATION_ARM64 + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } -#endif // SIMDJSON_ARM64_H -/* end file include/simdjson/arm64.h */ -/* begin file include/simdjson/fallback.h */ -#ifndef SIMDJSON_FALLBACK_H -#define SIMDJSON_FALLBACK_H + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_u8(*this, simd8(original)); + } + }; + // Signed bytes + template<> + struct simd8 { + int8x16_t value; -#if SIMDJSON_IMPLEMENTATION_FALLBACK + static simdjson_inline simd8 splat(int8_t _value) { return vmovq_n_s8(_value); } + static simdjson_inline simd8 zero() { return vdupq_n_s8(0); } + static simdjson_inline simd8 load(const int8_t values[16]) { return vld1q_s8(values); } -namespace simdjson { -/** - * Fallback implementation (runs on any machine). - */ -namespace fallback { -} // namespace fallback -} // namespace simdjson + // Conversion from/to SIMD register + simdjson_inline simd8(const int8x16_t _value) : value{_value} {} + simdjson_inline operator const int8x16_t&() const { return this->value; } + simdjson_inline operator int8x16_t&() { return this->value; } -/* begin file include/simdjson/fallback/implementation.h */ -#ifndef SIMDJSON_FALLBACK_IMPLEMENTATION_H -#define SIMDJSON_FALLBACK_IMPLEMENTATION_H + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(make_int8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(int8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + // Store to array + simdjson_inline void store(int8_t dst[16]) const { return vst1q_s8(dst, *this); } -namespace simdjson { -namespace fallback { + // Explicit conversion to/from unsigned + // + // Under Visual Studio/ARM64 uint8x16_t and int8x16_t are apparently the same type. + // In theory, we could check this occurrence with std::same_as and std::enabled_if but it is C++14 + // and relatively ugly and hard to read. +#ifndef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline explicit simd8(const uint8x16_t other): simd8(vreinterpretq_s8_u8(other)) {} +#endif + simdjson_inline explicit operator simd8() const { return vreinterpretq_u8_s8(this->value); } -namespace { -using namespace simdjson; -using namespace simdjson::dom; -} + // Math + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_s8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_s8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } -/** - * @private - */ -class implementation final : public simdjson::implementation { -public: - simdjson_inline implementation() : simdjson::implementation( - "fallback", - "Generic fallback implementation", - 0 - ) {} - simdjson_warn_unused error_code create_dom_parser_implementation( - size_t capacity, - size_t max_length, - std::unique_ptr& dst - ) const noexcept final; - simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; - simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; -}; + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_s8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_s8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_s8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_s8(*this, other); } + simdjson_inline simd8 operator==(const simd8 other) const { return vceqq_s8(*this, other); } -} // namespace fallback -} // namespace simdjson + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_s8(prev_chunk, *this, 16 - N); + } -#endif // SIMDJSON_FALLBACK_IMPLEMENTATION_H -/* end file include/simdjson/fallback/implementation.h */ + // Perform a lookup assuming no value is larger than 16 + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } -/* begin file include/simdjson/fallback/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "fallback" -// #define SIMDJSON_IMPLEMENTATION fallback -/* end file include/simdjson/fallback/begin.h */ + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_s8(*this, simd8(original)); + } + }; -// Declarations -/* begin file include/simdjson/generic/dom_parser_implementation.h */ + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "ARM kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; -namespace simdjson { -namespace fallback { + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed -// expectation: sizeof(open_container) = 64/8. -struct open_container { - uint32_t tape_index; // where, on the tape, does the scope ([,{) begins - uint32_t count; // how many elements in the scope -}; // struct open_container + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} -static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } -class dom_parser_implementation final : public internal::dom_parser_implementation { -public: - /** Tape location of each open { or [ */ - std::unique_ptr open_containers{}; - /** Whether each open container is a [ or { */ - std::unique_ptr is_array{}; - /** Buffer passed to stage 1 */ - const uint8_t *buf{}; - /** Length passed to stage 1 */ - size_t len{0}; - /** Document passed to stage 2 */ - dom::document *doc{}; + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } - inline dom_parser_implementation() noexcept; - inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; - inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; - dom_parser_implementation(const dom_parser_implementation &) = delete; - dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; - simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; - simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; - simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; - simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; - inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; - inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; -private: - simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint64_t popcounts = vget_lane_u64(vreinterpret_u64_u8(vcnt_u8(vcreate_u8(~mask))), 0); + // compute the prefix sum of the popcounts of each byte + uint64_t offsets = popcounts * 0x0101010101010101; + this->chunks[0].compress_halves(uint16_t(mask), output, &output[popcounts & 0xFF]); + this->chunks[1].compress_halves(uint16_t(mask >> 16), &output[(offsets >> 8) & 0xFF], &output[(offsets >> 16) & 0xFF]); + this->chunks[2].compress_halves(uint16_t(mask >> 32), &output[(offsets >> 24) & 0xFF], &output[(offsets >> 32) & 0xFF]); + this->chunks[3].compress_halves(uint16_t(mask >> 48), &output[(offsets >> 40) & 0xFF], &output[(offsets >> 48) & 0xFF]); + return offsets >> 56; + } -}; + simdjson_inline uint64_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t( + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + ); +#else + const uint8x16_t bit_mask = { + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + }; +#endif + // Add each of the elements next to each other, successively, to stuff each 8 byte mask into one. + uint8x16_t sum0 = vpaddq_u8(this->chunks[0] & bit_mask, this->chunks[1] & bit_mask); + uint8x16_t sum1 = vpaddq_u8(this->chunks[2] & bit_mask, this->chunks[3] & bit_mask); + sum0 = vpaddq_u8(sum0, sum1); + sum0 = vpaddq_u8(sum0, sum0); + return vgetq_lane_u64(vreinterpretq_u64_u8(sum0), 0); + } -} // namespace fallback + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace arm64 } // namespace simdjson +#endif // SIMDJSON_ARM64_SIMD_H +/* end file simdjson/arm64/simd.h */ +/* including simdjson/arm64/stringparsing_defs.h: #include "simdjson/arm64/stringparsing_defs.h" */ +/* begin file simdjson/arm64/stringparsing_defs.h */ +#ifndef SIMDJSON_ARM64_STRINGPARSING_DEFS_H +#define SIMDJSON_ARM64_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace fallback { +namespace arm64 { +namespace { -inline dom_parser_implementation::dom_parser_implementation() noexcept = default; -inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; -inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; +using namespace simd; -// Leaving these here so they can be inlined if so desired -inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { - if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } - // Stage 1 index output - size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; - structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); - if (!structural_indexes) { _capacity = 0; return MEMALLOC; } - structural_indexes[0] = 0; - n_structural_indexes = 0; +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); - _capacity = capacity; - return SUCCESS; -} + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } -inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { - // Stage 2 stacks - open_containers.reset(new (std::nothrow) open_container[max_depth]); - is_array.reset(new (std::nothrow) bool[max_depth]); - if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote - _max_depth = max_depth; - return SUCCESS; +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on ARM; therefore, we + // smash them together into a 64-byte mask and get the bitmask from there. + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; } -} // namespace fallback +} // unnamed namespace +} // namespace arm64 } // namespace simdjson -/* end file include/simdjson/generic/dom_parser_implementation.h */ -/* begin file include/simdjson/fallback/bitmanipulation.h */ -#ifndef SIMDJSON_FALLBACK_BITMANIPULATION_H -#define SIMDJSON_FALLBACK_BITMANIPULATION_H -#include +#endif // SIMDJSON_ARM64_STRINGPARSING_DEFS_H +/* end file simdjson/arm64/stringparsing_defs.h */ + +#define SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT 1 +/* end file simdjson/arm64/begin.h */ +/* including simdjson/generic/amalgamated.h for arm64: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for arm64 */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for arm64: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for arm64 */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace fallback { -namespace { +namespace arm64 { -#if defined(_MSC_VER) && !defined(_M_ARM64) && !defined(_M_X64) -static inline unsigned char _BitScanForward64(unsigned long* ret, uint64_t x) { - unsigned long x0 = (unsigned long)x, top, bottom; - _BitScanForward(&top, (unsigned long)(x >> 32)); - _BitScanForward(&bottom, x0); - *ret = x0 ? bottom : 32 + top; - return x != 0; -} -static unsigned char _BitScanReverse64(unsigned long* ret, uint64_t x) { - unsigned long x1 = (unsigned long)(x >> 32), top, bottom; - _BitScanReverse(&top, x1); - _BitScanReverse(&bottom, (unsigned long)x); - *ret = x1 ? top + 32 : bottom; - return x != 0; -} -#endif +struct open_container; +class dom_parser_implementation; -/* result might be undefined when input_num is zero */ -simdjson_inline int leading_zeroes(uint64_t input_num) { -#ifdef _MSC_VER - unsigned long leading_zero = 0; - // Search the mask data from most significant bit (MSB) - // to least significant bit (LSB) for a set bit (1). - if (_BitScanReverse64(&leading_zero, input_num)) - return (int)(63 - leading_zero); - else - return 64; -#else - return __builtin_clzll(input_num); -#endif// _MSC_VER -} +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; -} // unnamed namespace -} // namespace fallback +} // namespace arm64 } // namespace simdjson -#endif // SIMDJSON_FALLBACK_BITMANIPULATION_H -/* end file include/simdjson/fallback/bitmanipulation.h */ -/* begin file include/simdjson/generic/jsoncharutils.h */ +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for arm64 */ +/* including simdjson/generic/jsoncharutils.h for arm64: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for arm64 */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace fallback { +namespace arm64 { namespace { namespace jsoncharutils { @@ -12410,34 +11307,27 @@ static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) } #endif -using internal::value128; - -simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { - value128 answer; -#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS -#ifdef _M_ARM64 - // ARM64 has native support for 64-bit multiplications, no need to emultate - answer.high = __umulh(value1, value2); - answer.low = value1 * value2; -#else - answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 -#endif // _M_ARM64 -#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS - __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; - answer.low = uint64_t(r); - answer.high = uint64_t(r >> 64); -#endif - return answer; -} - } // namespace jsoncharutils } // unnamed namespace -} // namespace fallback +} // namespace arm64 } // namespace simdjson -/* end file include/simdjson/generic/jsoncharutils.h */ -/* begin file include/simdjson/generic/atomparsing.h */ + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for arm64 */ +/* including simdjson/generic/atomparsing.h for arm64: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + namespace simdjson { -namespace fallback { +namespace arm64 { namespace { /// @private namespace atomparsing { @@ -12499,153 +11389,317 @@ simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { } // namespace atomparsing } // unnamed namespace -} // namespace fallback +} // namespace arm64 } // namespace simdjson -/* end file include/simdjson/generic/atomparsing.h */ -/* begin file include/simdjson/fallback/stringparsing.h */ -#ifndef SIMDJSON_FALLBACK_STRINGPARSING_H -#define SIMDJSON_FALLBACK_STRINGPARSING_H +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for arm64 */ +/* including simdjson/generic/dom_parser_implementation.h for arm64: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for arm64 */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace fallback { -namespace { +namespace arm64 { -// Holds backslashes and quotes locations. -struct backslash_and_quote { +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { public: - static constexpr uint32_t BYTES_PROCESSED = 1; - simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; - simdjson_inline bool has_quote_first() { return c == '"'; } - simdjson_inline bool has_backslash() { return c == '\\'; } - simdjson_inline int quote_index() { return c == '"' ? 0 : 1; } - simdjson_inline int backslash_index() { return c == '\\' ? 0 : 1; } + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; - uint8_t c; -}; // struct backslash_and_quote + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); -simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { - // store to dest unconditionally - we can overwrite the bits we don't like later - dst[0] = src[0]; - return { src[0] }; -} +}; -} // unnamed namespace -} // namespace fallback +} // namespace arm64 } // namespace simdjson -#endif // SIMDJSON_FALLBACK_STRINGPARSING_H -/* end file include/simdjson/fallback/stringparsing.h */ -/* begin file include/simdjson/fallback/numberparsing.h */ -#ifndef SIMDJSON_FALLBACK_NUMBERPARSING_H -#define SIMDJSON_FALLBACK_NUMBERPARSING_H +namespace simdjson { +namespace arm64 { -#ifdef JSON_TEST_NUMBERS // for unit testing -void found_invalid_number(const uint8_t *buf); -void found_integer(int64_t result, const uint8_t *buf); -void found_unsigned_integer(uint64_t result, const uint8_t *buf); -void found_float(double result, const uint8_t *buf); -#endif +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; -namespace simdjson { -namespace fallback { -namespace numberparsing { -// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ -/** @private */ -static simdjson_inline uint32_t parse_eight_digits_unrolled(const char *chars) { - uint64_t val; - memcpy(&val, chars, sizeof(uint64_t)); - val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; - val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; - return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; } -/** @private */ -static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { - return parse_eight_digits_unrolled(reinterpret_cast(chars)); + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; } -} // namespace numberparsing -} // namespace fallback +} // namespace arm64 } // namespace simdjson -#define SIMDJSON_SWAR_NUMBER_PARSING 1 +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for arm64 */ +/* including simdjson/generic/implementation_simdjson_result_base.h for arm64: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for arm64 */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H -/* begin file include/simdjson/generic/numberparsing.h */ -#include +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace fallback { -/// @private -namespace numberparsing { +namespace arm64 { +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! /** - * The type of a JSON number + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. */ -enum class number_type { - floating_point_number=1, /// a binary64 number - signed_integer, /// a signed integer that fits in a 64-bit word using two's complement - unsigned_integer /// a positive integer larger or equal to 1<<63 -}; +template +struct implementation_simdjson_result_base { -#ifdef JSON_TEST_NUMBERS -#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) -#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) -#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) -#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) -#else -#define INVALID_NUMBER(SRC) (NUMBER_ERROR) -#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) -#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) -#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) -#endif + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; -namespace { + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; -// Convert a mantissa, an exponent and a sign bit into an ieee64 double. -// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). -// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. -simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { - double d; - mantissa &= ~(1ULL << 52); - mantissa |= real_exponent << 52; - mantissa |= ((static_cast(negative)) << 63); - std::memcpy(&d, &mantissa, sizeof(d)); - return d; -} + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; -// Attempts to compute i * 10^(power) exactly; and if "negative" is -// true, negate the result. -// This function will only work in some cases, when it does not work, success is -// set to false. This should work *most of the time* (like 99% of the time). -// We assume that power is in the [smallest_power, -// largest_power] interval: the caller is responsible for this check. -simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { - // we start with a fast path - // It was described in - // Clinger WD. How to read floating point numbers accurately. - // ACM SIGPLAN Notices. 1990 -#ifndef FLT_EVAL_METHOD -#error "FLT_EVAL_METHOD should be defined, please include cfloat." -#endif -#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) - // We cannot be certain that x/y is rounded to nearest. - if (0 <= power && power <= 22 && i <= 9007199254740991) -#else - if (-22 <= power && power <= 22 && i <= 9007199254740991) -#endif - { - // convert the integer into a double. This is lossless since - // 0 <= i <= 2^53 - 1. - d = double(i); - // - // The general idea is as follows. - // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then - // 1) Both s and p can be represented exactly as 64-bit floating-point - // values - // (binary64). - // 2) Because s and p can be represented exactly as floating-point values, - // then s * p + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for arm64 */ +/* including simdjson/generic/numberparsing.h for arm64: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for arm64 */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace arm64 { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p // and s / p will produce correctly rounded values. // if (power < 0) { @@ -12738,7 +11792,7 @@ simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, // with a returned value of type value128 with a "low component" corresponding to the // 64-bit least significant bits of the product and with a "high component" corresponding // to the 64-bit most significant bits of the product. - simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); // Both i and power_of_five_128[index] have their most significant bit set to 1 which // implies that the either the most or the second most significant bit of the product // is 1. We pack values in this manner for efficiency reasons: it maximizes the use @@ -12772,7 +11826,7 @@ simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, // with a returned value of type value128 with a "low component" corresponding to the // 64-bit least significant bits of the product and with a "high component" corresponding // to the 64-bit most significant bits of the product. - simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); firstproduct.low += secondproduct.high; if(secondproduct.high > firstproduct.low) { firstproduct.high++; } // At this point, we might need to add at most one to firstproduct, but this @@ -13823,6 +12877,8 @@ simdjson_unused simdjson_inline simdjson_result parse_double_in_string(c } // unnamed namespace #endif // SIMDJSON_SKIPNUMBERPARSING +} // namespace numberparsing + inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { switch (type) { case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; @@ -13833,700 +12889,393 @@ inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { return out; } -} // namespace numberparsing -} // namespace fallback +} // namespace arm64 } // namespace simdjson -/* end file include/simdjson/generic/numberparsing.h */ - -#endif // SIMDJSON_FALLBACK_NUMBERPARSING_H -/* end file include/simdjson/fallback/numberparsing.h */ -/* begin file include/simdjson/fallback/end.h */ -/* end file include/simdjson/fallback/end.h */ - -#endif // SIMDJSON_IMPLEMENTATION_FALLBACK -#endif // SIMDJSON_FALLBACK_H -/* end file include/simdjson/fallback.h */ -/* begin file include/simdjson/icelake.h */ -#ifndef SIMDJSON_ICELAKE_H -#define SIMDJSON_ICELAKE_H +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for arm64 */ -#if SIMDJSON_IMPLEMENTATION_ICELAKE +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for arm64: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H -#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE -#define SIMDJSON_TARGET_ICELAKE -#define SIMDJSON_UNTARGET_ICELAKE -#else -#define SIMDJSON_TARGET_ICELAKE SIMDJSON_TARGET_REGION("avx512f,avx512dq,avx512cd,avx512bw,avx512vbmi,avx512vbmi2,avx512vl,avx2,bmi,pclmul,lzcnt,popcnt") -#define SIMDJSON_UNTARGET_ICELAKE SIMDJSON_UNTARGET_REGION -#endif +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -/** - * Implementation for Icelake (Intel AVX512). - */ -namespace icelake { -} // namespace icelake -} // namespace simdjson +namespace arm64 { // -// These two need to be included outside SIMDJSON_TARGET_ICELAKE +// internal::implementation_simdjson_result_base inline implementation // -/* begin file include/simdjson/icelake/implementation.h */ -#ifndef SIMDJSON_ICELAKE_IMPLEMENTATION_H -#define SIMDJSON_ICELAKE_IMPLEMENTATION_H - - -// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE -namespace simdjson { -namespace icelake { -using namespace simdjson; +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} -/** - * @private - */ -class implementation final : public simdjson::implementation { -public: - simdjson_inline implementation() : simdjson::implementation( - "icelake", - "Intel/AMD AVX512", - internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 | internal::instruction_set::AVX512F | internal::instruction_set::AVX512DQ | internal::instruction_set::AVX512CD | internal::instruction_set::AVX512BW | internal::instruction_set::AVX512VL | internal::instruction_set::AVX512VBMI2 - ) {} - simdjson_warn_unused error_code create_dom_parser_implementation( - size_t capacity, - size_t max_length, - std::unique_ptr& dst - ) const noexcept final; - simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; - simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; -}; +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} -} // namespace icelake -} // namespace simdjson +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} -#endif // SIMDJSON_ICELAKE_IMPLEMENTATION_H -/* end file include/simdjson/icelake/implementation.h */ -/* begin file include/simdjson/icelake/intrinsics.h */ -#ifndef SIMDJSON_ICELAKE_INTRINSICS_H -#define SIMDJSON_ICELAKE_INTRINSICS_H +#if SIMDJSON_EXCEPTIONS +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} -#if SIMDJSON_VISUAL_STUDIO -// under clang within visual studio, this will include -#include // visual studio or clang -#else -#include // elsewhere -#endif // SIMDJSON_VISUAL_STUDIO +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} -#if SIMDJSON_CLANG_VISUAL_STUDIO -/** - * You are not supposed, normally, to include these - * headers directly. Instead you should either include intrin.h - * or x86intrin.h. However, when compiling with clang - * under Windows (i.e., when _MSC_VER is set), these headers - * only get included *if* the corresponding features are detected - * from macros: - * e.g., if __AVX2__ is set... in turn, we normally set these - * macros by compiling against the corresponding architecture - * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole - * software with these advanced instructions. In simdjson, we - * want to compile the whole program for a generic target, - * and only target our specific kernels. As a workaround, - * we directly include the needed headers. These headers would - * normally guard against such usage, but we carefully included - * (or ) before, so the headers - * are fooled. - */ -#include // for _blsr_u64 -#include // for __lzcnt64 -#include // for most things (AVX2, AVX512, _popcnt64) -#include -#include -#include -#include -#include // for _mm_clmulepi64_si128 -// Important: we need the AVX-512 headers: -#include -#include -#include -#include -#include -#include -#include -// unfortunately, we may not get _blsr_u64, but, thankfully, clang -// has it as a macro. -#ifndef _blsr_u64 -// we roll our own -#define _blsr_u64(n) ((n - 1) & n) -#endif // _blsr_u64 -#endif // SIMDJSON_CLANG_VISUAL_STUDIO +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} -static_assert(sizeof(__m512i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for icelake"); +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} -#endif // SIMDJSON_ICELAKE_INTRINSICS_H -/* end file include/simdjson/icelake/intrinsics.h */ +#endif // SIMDJSON_EXCEPTIONS -// -// The rest need to be inside the region -// -/* begin file include/simdjson/icelake/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "icelake" -// #define SIMDJSON_IMPLEMENTATION icelake -SIMDJSON_TARGET_ICELAKE -/* end file include/simdjson/icelake/begin.h */ +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} -// Declarations -/* begin file include/simdjson/generic/dom_parser_implementation.h */ +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} -namespace simdjson { -namespace icelake { +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} -// expectation: sizeof(open_container) = 64/8. -struct open_container { - uint32_t tape_index; // where, on the tape, does the scope ([,{) begins - uint32_t count; // how many elements in the scope -}; // struct open_container +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} -static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); +} // namespace arm64 +} // namespace simdjson -class dom_parser_implementation final : public internal::dom_parser_implementation { -public: - /** Tape location of each open { or [ */ - std::unique_ptr open_containers{}; - /** Whether each open container is a [ or { */ - std::unique_ptr is_array{}; - /** Buffer passed to stage 1 */ - const uint8_t *buf{}; - /** Length passed to stage 1 */ - size_t len{0}; - /** Document passed to stage 2 */ - dom::document *doc{}; +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for arm64 */ +/* end file simdjson/generic/amalgamated.h for arm64 */ +/* including simdjson/arm64/end.h: #include "simdjson/arm64/end.h" */ +/* begin file simdjson/arm64/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - inline dom_parser_implementation() noexcept; - inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; - inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; - dom_parser_implementation(const dom_parser_implementation &) = delete; - dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; +#undef SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT +/* undefining SIMDJSON_IMPLEMENTATION from "arm64" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/arm64/end.h */ - simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; - simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; - simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; - simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; - inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; - inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; -private: - simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); +#endif // SIMDJSON_ARM64_H +/* end file simdjson/arm64.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(fallback) +/* including simdjson/fallback.h: #include "simdjson/fallback.h" */ +/* begin file simdjson/fallback.h */ +#ifndef SIMDJSON_FALLBACK_H +#define SIMDJSON_FALLBACK_H -}; +/* including simdjson/fallback/begin.h: #include "simdjson/fallback/begin.h" */ +/* begin file simdjson/fallback/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "fallback" */ +#define SIMDJSON_IMPLEMENTATION fallback +/* including simdjson/fallback/base.h: #include "simdjson/fallback/base.h" */ +/* begin file simdjson/fallback/base.h */ +#ifndef SIMDJSON_FALLBACK_BASE_H +#define SIMDJSON_FALLBACK_BASE_H -} // namespace icelake -} // namespace simdjson +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace icelake { - -inline dom_parser_implementation::dom_parser_implementation() noexcept = default; -inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; -inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; - -// Leaving these here so they can be inlined if so desired -inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { - if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } - // Stage 1 index output - size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; - structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); - if (!structural_indexes) { _capacity = 0; return MEMALLOC; } - structural_indexes[0] = 0; - n_structural_indexes = 0; +/** + * Fallback implementation (runs on any machine). + */ +namespace fallback { - _capacity = capacity; - return SUCCESS; -} +class implementation; -inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { - // Stage 2 stacks - open_containers.reset(new (std::nothrow) open_container[max_depth]); - is_array.reset(new (std::nothrow) bool[max_depth]); - if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } +} // namespace fallback +} // namespace simdjson - _max_depth = max_depth; - return SUCCESS; -} +#endif // SIMDJSON_FALLBACK_BASE_H +/* end file simdjson/fallback/base.h */ +/* including simdjson/fallback/bitmanipulation.h: #include "simdjson/fallback/bitmanipulation.h" */ +/* begin file simdjson/fallback/bitmanipulation.h */ +#ifndef SIMDJSON_FALLBACK_BITMANIPULATION_H +#define SIMDJSON_FALLBACK_BITMANIPULATION_H -} // namespace icelake -} // namespace simdjson -/* end file include/simdjson/generic/dom_parser_implementation.h */ -/* begin file include/simdjson/icelake/bitmanipulation.h */ -#ifndef SIMDJSON_ICELAKE_BITMANIPULATION_H -#define SIMDJSON_ICELAKE_BITMANIPULATION_H +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace icelake { +namespace fallback { namespace { -// We sometimes call trailing_zero on inputs that are zero, -// but the algorithms do not end up using the returned value. -// Sadly, sanitizers are not smart enough to figure it out. -SIMDJSON_NO_SANITIZE_UNDEFINED -// This function can be used safely even if not all bytes have been -// initialized. -// See issue https://github.com/simdjson/simdjson/issues/1965 -SIMDJSON_NO_SANITIZE_MEMORY -simdjson_inline int trailing_zeroes(uint64_t input_num) { -#if SIMDJSON_REGULAR_VISUAL_STUDIO - return (int)_tzcnt_u64(input_num); -#else // SIMDJSON_REGULAR_VISUAL_STUDIO - //////// - // You might expect the next line to be equivalent to - // return (int)_tzcnt_u64(input_num); - // but the generated code differs and might be less efficient? - //////// - return __builtin_ctzll(input_num); -#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +#if defined(_MSC_VER) && !defined(_M_ARM64) && !defined(_M_X64) +static inline unsigned char _BitScanForward64(unsigned long* ret, uint64_t x) { + unsigned long x0 = (unsigned long)x, top, bottom; + _BitScanForward(&top, (unsigned long)(x >> 32)); + _BitScanForward(&bottom, x0); + *ret = x0 ? bottom : 32 + top; + return x != 0; } - -/* result might be undefined when input_num is zero */ -simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { - return _blsr_u64(input_num); +static unsigned char _BitScanReverse64(unsigned long* ret, uint64_t x) { + unsigned long x1 = (unsigned long)(x >> 32), top, bottom; + _BitScanReverse(&top, x1); + _BitScanReverse(&bottom, (unsigned long)x); + *ret = x1 ? top + 32 : bottom; + return x != 0; } +#endif /* result might be undefined when input_num is zero */ simdjson_inline int leading_zeroes(uint64_t input_num) { - return int(_lzcnt_u64(input_num)); -} - -#if SIMDJSON_REGULAR_VISUAL_STUDIO -simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { - // note: we do not support legacy 32-bit Windows - return __popcnt64(input_num);// Visual Studio wants two underscores -} -#else -simdjson_inline long long int count_ones(uint64_t input_num) { - return _popcnt64(input_num); -} -#endif - -simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, - uint64_t *result) { -#if SIMDJSON_REGULAR_VISUAL_STUDIO - return _addcarry_u64(0, value1, value2, - reinterpret_cast(result)); +#ifdef _MSC_VER + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; #else - return __builtin_uaddll_overflow(value1, value2, - reinterpret_cast(result)); -#endif + return __builtin_clzll(input_num); +#endif// _MSC_VER } } // unnamed namespace -} // namespace icelake +} // namespace fallback } // namespace simdjson -#endif // SIMDJSON_ICELAKE_BITMANIPULATION_H -/* end file include/simdjson/icelake/bitmanipulation.h */ -/* begin file include/simdjson/icelake/bitmask.h */ -#ifndef SIMDJSON_ICELAKE_BITMASK_H -#define SIMDJSON_ICELAKE_BITMASK_H +#endif // SIMDJSON_FALLBACK_BITMANIPULATION_H +/* end file simdjson/fallback/bitmanipulation.h */ +/* including simdjson/fallback/stringparsing_defs.h: #include "simdjson/fallback/stringparsing_defs.h" */ +/* begin file simdjson/fallback/stringparsing_defs.h */ +#ifndef SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H +#define SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace icelake { +namespace fallback { namespace { -// -// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. -// -// For example, prefix_xor(00100100) == 00011100 -// -simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { - // There should be no such thing with a processor supporting avx2 - // but not clmul. - __m128i all_ones = _mm_set1_epi8('\xFF'); - __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); - return _mm_cvtsi128_si64(result); +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 1; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return c == '"'; } + simdjson_inline bool has_backslash() { return c == '\\'; } + simdjson_inline int quote_index() { return c == '"' ? 0 : 1; } + simdjson_inline int backslash_index() { return c == '\\' ? 0 : 1; } + + uint8_t c; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // store to dest unconditionally - we can overwrite the bits we don't like later + dst[0] = src[0]; + return { src[0] }; } } // unnamed namespace -} // namespace icelake +} // namespace fallback } // namespace simdjson -#endif // SIMDJSON_ICELAKE_BITMASK_H -/* end file include/simdjson/icelake/bitmask.h */ -/* begin file include/simdjson/icelake/simd.h */ -#ifndef SIMDJSON_ICELAKE_SIMD_H -#define SIMDJSON_ICELAKE_SIMD_H - +#endif // SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H +/* end file simdjson/fallback/stringparsing_defs.h */ +/* including simdjson/fallback/numberparsing_defs.h: #include "simdjson/fallback/numberparsing_defs.h" */ +/* begin file simdjson/fallback/numberparsing_defs.h */ +#ifndef SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +#define SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ +#include -#if defined(__GNUC__) && !defined(__clang__) -#if __GNUC__ == 8 -#define SIMDJSON_GCC8 1 -#endif // __GNUC__ == 8 -#endif // defined(__GNUC__) && !defined(__clang__) - -#if SIMDJSON_GCC8 -/** - * GCC 8 fails to provide _mm512_set_epi8. We roll our own. - */ -inline __m512i _mm512_set_epi8(uint8_t a0, uint8_t a1, uint8_t a2, uint8_t a3, uint8_t a4, uint8_t a5, uint8_t a6, uint8_t a7, uint8_t a8, uint8_t a9, uint8_t a10, uint8_t a11, uint8_t a12, uint8_t a13, uint8_t a14, uint8_t a15, uint8_t a16, uint8_t a17, uint8_t a18, uint8_t a19, uint8_t a20, uint8_t a21, uint8_t a22, uint8_t a23, uint8_t a24, uint8_t a25, uint8_t a26, uint8_t a27, uint8_t a28, uint8_t a29, uint8_t a30, uint8_t a31, uint8_t a32, uint8_t a33, uint8_t a34, uint8_t a35, uint8_t a36, uint8_t a37, uint8_t a38, uint8_t a39, uint8_t a40, uint8_t a41, uint8_t a42, uint8_t a43, uint8_t a44, uint8_t a45, uint8_t a46, uint8_t a47, uint8_t a48, uint8_t a49, uint8_t a50, uint8_t a51, uint8_t a52, uint8_t a53, uint8_t a54, uint8_t a55, uint8_t a56, uint8_t a57, uint8_t a58, uint8_t a59, uint8_t a60, uint8_t a61, uint8_t a62, uint8_t a63) { - return _mm512_set_epi64(uint64_t(a7) + (uint64_t(a6) << 8) + (uint64_t(a5) << 16) + (uint64_t(a4) << 24) + (uint64_t(a3) << 32) + (uint64_t(a2) << 40) + (uint64_t(a1) << 48) + (uint64_t(a0) << 56), - uint64_t(a15) + (uint64_t(a14) << 8) + (uint64_t(a13) << 16) + (uint64_t(a12) << 24) + (uint64_t(a11) << 32) + (uint64_t(a10) << 40) + (uint64_t(a9) << 48) + (uint64_t(a8) << 56), - uint64_t(a23) + (uint64_t(a22) << 8) + (uint64_t(a21) << 16) + (uint64_t(a20) << 24) + (uint64_t(a19) << 32) + (uint64_t(a18) << 40) + (uint64_t(a17) << 48) + (uint64_t(a16) << 56), - uint64_t(a31) + (uint64_t(a30) << 8) + (uint64_t(a29) << 16) + (uint64_t(a28) << 24) + (uint64_t(a27) << 32) + (uint64_t(a26) << 40) + (uint64_t(a25) << 48) + (uint64_t(a24) << 56), - uint64_t(a39) + (uint64_t(a38) << 8) + (uint64_t(a37) << 16) + (uint64_t(a36) << 24) + (uint64_t(a35) << 32) + (uint64_t(a34) << 40) + (uint64_t(a33) << 48) + (uint64_t(a32) << 56), - uint64_t(a47) + (uint64_t(a46) << 8) + (uint64_t(a45) << 16) + (uint64_t(a44) << 24) + (uint64_t(a43) << 32) + (uint64_t(a42) << 40) + (uint64_t(a41) << 48) + (uint64_t(a40) << 56), - uint64_t(a55) + (uint64_t(a54) << 8) + (uint64_t(a53) << 16) + (uint64_t(a52) << 24) + (uint64_t(a51) << 32) + (uint64_t(a50) << 40) + (uint64_t(a49) << 48) + (uint64_t(a48) << 56), - uint64_t(a63) + (uint64_t(a62) << 8) + (uint64_t(a61) << 16) + (uint64_t(a60) << 24) + (uint64_t(a59) << 32) + (uint64_t(a58) << 40) + (uint64_t(a57) << 48) + (uint64_t(a56) << 56)); -} -#endif // SIMDJSON_GCC8 - - +#ifdef JSON_TEST_NUMBERS // for unit testing +void found_invalid_number(const uint8_t *buf); +void found_integer(int64_t result, const uint8_t *buf); +void found_unsigned_integer(uint64_t result, const uint8_t *buf); +void found_float(double result, const uint8_t *buf); +#endif namespace simdjson { -namespace icelake { -namespace { -namespace simd { - - // Forward-declared so they can be used by splat and friends. - template - struct base { - __m512i value; - - // Zero constructor - simdjson_inline base() : value{__m512i()} {} - - // Conversion from SIMD register - simdjson_inline base(const __m512i _value) : value(_value) {} - - // Conversion to SIMD register - simdjson_inline operator const __m512i&() const { return this->value; } - simdjson_inline operator __m512i&() { return this->value; } - - // Bit operations - simdjson_inline Child operator|(const Child other) const { return _mm512_or_si512(*this, other); } - simdjson_inline Child operator&(const Child other) const { return _mm512_and_si512(*this, other); } - simdjson_inline Child operator^(const Child other) const { return _mm512_xor_si512(*this, other); } - simdjson_inline Child bit_andnot(const Child other) const { return _mm512_andnot_si512(other, *this); } - simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } - simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } - simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } - }; - - // Forward-declared so they can be used by splat and friends. - template - struct simd8; - - template> - struct base8: base> { - typedef uint32_t bitmask_t; - typedef uint64_t bitmask2_t; - - simdjson_inline base8() : base>() {} - simdjson_inline base8(const __m512i _value) : base>(_value) {} - - friend simdjson_really_inline uint64_t operator==(const simd8 lhs, const simd8 rhs) { - return _mm512_cmpeq_epi8_mask(lhs, rhs); - } - - static const int SIZE = sizeof(base::value); - - template - simdjson_inline simd8 prev(const simd8 prev_chunk) const { - // workaround for compilers unable to figure out that 16 - N is a constant (GCC 8) - constexpr int shift = 16 - N; - return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift); - } - }; - - // SIMD byte mask type (returned by things like eq and gt) - template<> - struct simd8: base8 { - static simdjson_inline simd8 splat(bool _value) { return _mm512_set1_epi8(uint8_t(-(!!_value))); } - - simdjson_inline simd8() : base8() {} - simdjson_inline simd8(const __m512i _value) : base8(_value) {} - // Splat constructor - simdjson_inline simd8(bool _value) : base8(splat(_value)) {} - simdjson_inline bool any() const { return !!_mm512_test_epi8_mask (*this, *this); } - simdjson_inline simd8 operator~() const { return *this ^ true; } - }; - - template - struct base8_numeric: base8 { - static simdjson_inline simd8 splat(T _value) { return _mm512_set1_epi8(_value); } - static simdjson_inline simd8 zero() { return _mm512_setzero_si512(); } - static simdjson_inline simd8 load(const T values[64]) { - return _mm512_loadu_si512(reinterpret_cast(values)); - } - // Repeat 16 values as many times as necessary (usually for lookup tables) - static simdjson_inline simd8 repeat_16( - T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, - T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 - ) { - return simd8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - ); - } - - simdjson_inline base8_numeric() : base8() {} - simdjson_inline base8_numeric(const __m512i _value) : base8(_value) {} - - // Store to array - simdjson_inline void store(T dst[64]) const { return _mm512_storeu_si512(reinterpret_cast<__m512i *>(dst), *this); } - - // Addition/subtraction are the same for signed and unsigned - simdjson_inline simd8 operator+(const simd8 other) const { return _mm512_add_epi8(*this, other); } - simdjson_inline simd8 operator-(const simd8 other) const { return _mm512_sub_epi8(*this, other); } - simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } - simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } - - // Override to distinguish from bool version - simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } - - // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) - template - simdjson_inline simd8 lookup_16(simd8 lookup_table) const { - return _mm512_shuffle_epi8(lookup_table, *this); - } - - // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). - // Passing a 0 value for mask would be equivalent to writing out every byte to output. - // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes - // get written. - // Design consideration: it seems like a function with the - // signature simd8 compress(uint32_t mask) would be - // sensible, but the AVX ISA makes this kind of approach difficult. - template - simdjson_inline void compress(uint64_t mask, L * output) const { - _mm512_mask_compressstoreu_epi8 (output,~mask,*this); - } - - template - simdjson_inline simd8 lookup_16( - L replace0, L replace1, L replace2, L replace3, - L replace4, L replace5, L replace6, L replace7, - L replace8, L replace9, L replace10, L replace11, - L replace12, L replace13, L replace14, L replace15) const { - return lookup_16(simd8::repeat_16( - replace0, replace1, replace2, replace3, - replace4, replace5, replace6, replace7, - replace8, replace9, replace10, replace11, - replace12, replace13, replace14, replace15 - )); - } - }; - - // Signed bytes - template<> - struct simd8 : base8_numeric { - simdjson_inline simd8() : base8_numeric() {} - simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} - // Splat constructor - simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} - // Array constructor - simdjson_inline simd8(const int8_t values[64]) : simd8(load(values)) {} - // Member-by-member initialization - simdjson_inline simd8( - int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, - int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, - int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, - int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31, - int8_t v32, int8_t v33, int8_t v34, int8_t v35, int8_t v36, int8_t v37, int8_t v38, int8_t v39, - int8_t v40, int8_t v41, int8_t v42, int8_t v43, int8_t v44, int8_t v45, int8_t v46, int8_t v47, - int8_t v48, int8_t v49, int8_t v50, int8_t v51, int8_t v52, int8_t v53, int8_t v54, int8_t v55, - int8_t v56, int8_t v57, int8_t v58, int8_t v59, int8_t v60, int8_t v61, int8_t v62, int8_t v63 - ) : simd8(_mm512_set_epi8( - v63, v62, v61, v60, v59, v58, v57, v56, - v55, v54, v53, v52, v51, v50, v49, v48, - v47, v46, v45, v44, v43, v42, v41, v40, - v39, v38, v37, v36, v35, v34, v33, v32, - v31, v30, v29, v28, v27, v26, v25, v24, - v23, v22, v21, v20, v19, v18, v17, v16, - v15, v14, v13, v12, v11, v10, v9, v8, - v7, v6, v5, v4, v3, v2, v1, v0 - )) {} - - // Repeat 16 values as many times as necessary (usually for lookup tables) - simdjson_inline static simd8 repeat_16( - int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, - int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 - ) { - return simd8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - ); - } - - // Order-sensitive comparisons - simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epi8(*this, other); } - simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epi8(*this, other); } - - simdjson_inline simd8 operator>(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(*this, other),_mm512_set1_epi8(uint8_t(0x80))); } - simdjson_inline simd8 operator<(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(other, *this),_mm512_set1_epi8(uint8_t(0x80))); } - }; - - // Unsigned bytes - template<> - struct simd8: base8_numeric { - simdjson_inline simd8() : base8_numeric() {} - simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} - // Splat constructor - simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} - // Array constructor - simdjson_inline simd8(const uint8_t values[64]) : simd8(load(values)) {} - // Member-by-member initialization - simdjson_inline simd8( - uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, - uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, - uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, - uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31, - uint8_t v32, uint8_t v33, uint8_t v34, uint8_t v35, uint8_t v36, uint8_t v37, uint8_t v38, uint8_t v39, - uint8_t v40, uint8_t v41, uint8_t v42, uint8_t v43, uint8_t v44, uint8_t v45, uint8_t v46, uint8_t v47, - uint8_t v48, uint8_t v49, uint8_t v50, uint8_t v51, uint8_t v52, uint8_t v53, uint8_t v54, uint8_t v55, - uint8_t v56, uint8_t v57, uint8_t v58, uint8_t v59, uint8_t v60, uint8_t v61, uint8_t v62, uint8_t v63 - ) : simd8(_mm512_set_epi8( - v63, v62, v61, v60, v59, v58, v57, v56, - v55, v54, v53, v52, v51, v50, v49, v48, - v47, v46, v45, v44, v43, v42, v41, v40, - v39, v38, v37, v36, v35, v34, v33, v32, - v31, v30, v29, v28, v27, v26, v25, v24, - v23, v22, v21, v20, v19, v18, v17, v16, - v15, v14, v13, v12, v11, v10, v9, v8, - v7, v6, v5, v4, v3, v2, v1, v0 - )) {} - - // Repeat 16 values as many times as necessary (usually for lookup tables) - simdjson_inline static simd8 repeat_16( - uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, - uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 - ) { - return simd8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15, - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - ); - } - - // Saturated math - simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm512_adds_epu8(*this, other); } - simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm512_subs_epu8(*this, other); } - - // Order-specific operations - simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epu8(*this, other); } - simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epu8(other, *this); } - // Same as >, but only guarantees true is nonzero (< guarantees true = -1) - simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } - // Same as <, but only guarantees true is nonzero (< guarantees true = -1) - simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } - simdjson_inline uint64_t operator<=(const simd8 other) const { return other.max_val(*this) == other; } - simdjson_inline uint64_t operator>=(const simd8 other) const { return other.min_val(*this) == other; } - simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } - simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } - - // Bit-specific operations - simdjson_inline simd8 bits_not_set() const { return _mm512_mask_blend_epi8(*this == uint8_t(0), _mm512_set1_epi8(0), _mm512_set1_epi8(-1)); } - simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } - simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } - simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } - - simdjson_inline bool is_ascii() const { return _mm512_movepi8_mask(*this) == 0; } - simdjson_inline bool bits_not_set_anywhere() const { - return !_mm512_test_epi8_mask(*this, *this); - } - simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } - simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return !_mm512_test_epi8_mask(*this, bits); } - simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } - template - simdjson_inline simd8 shr() const { return simd8(_mm512_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } - template - simdjson_inline simd8 shl() const { return simd8(_mm512_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } - // Get one of the bits and make a bitmask out of it. - // e.g. value.get_bit<7>() gets the high bit - template - simdjson_inline uint64_t get_bit() const { return _mm512_movepi8_mask(_mm512_slli_epi16(*this, 7-N)); } - }; +namespace fallback { +namespace numberparsing { - template - struct simd8x64 { - static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); - static_assert(NUM_CHUNKS == 1, "Icelake kernel should use one register per 64-byte block."); - const simd8 chunks[NUM_CHUNKS]; +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const char *chars) { + uint64_t val; + memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} - simd8x64(const simd8x64& o) = delete; // no copy allowed - simd8x64& operator=(const simd8& other) = delete; // no assignment allowed - simd8x64() = delete; // no default constructor allowed +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + return parse_eight_digits_unrolled(reinterpret_cast(chars)); +} - simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} - simdjson_inline simd8x64(const simd8 chunk0) : chunks{chunk0} {} - simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr)} {} +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif - simdjson_inline uint64_t compress(uint64_t mask, T * output) const { - this->chunks[0].compress(mask, output); - return 64 - count_ones(mask); - } +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} - simdjson_inline void store(T ptr[64]) const { - this->chunks[0].store(ptr+sizeof(simd8)*0); - } +} // namespace numberparsing +} // namespace fallback +} // namespace simdjson - simdjson_inline simd8 reduce_or() const { - return this->chunks[0]; - } +#define SIMDJSON_SWAR_NUMBER_PARSING 1 - simdjson_inline simd8x64 bit_or(const T m) const { - const simd8 mask = simd8::splat(m); - return simd8x64( - this->chunks[0] | mask - ); - } +#endif // SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +/* end file simdjson/fallback/numberparsing_defs.h */ +/* end file simdjson/fallback/begin.h */ +/* including simdjson/generic/amalgamated.h for fallback: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for fallback */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif - simdjson_inline uint64_t eq(const T m) const { - const simd8 mask = simd8::splat(m); - return this->chunks[0] == mask; - } +/* including simdjson/generic/base.h for fallback: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for fallback */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - simdjson_inline uint64_t eq(const simd8x64 &other) const { - return this->chunks[0] == other.chunks[0]; - } +namespace simdjson { +namespace fallback { - simdjson_inline uint64_t lteq(const T m) const { - const simd8 mask = simd8::splat(m); - return this->chunks[0] <= mask; - } - }; // struct simd8x64 +struct open_container; +class dom_parser_implementation; -} // namespace simd +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; -} // unnamed namespace -} // namespace icelake +} // namespace fallback } // namespace simdjson -#endif // SIMDJSON_ICELAKE_SIMD_H -/* end file include/simdjson/icelake/simd.h */ -/* begin file include/simdjson/generic/jsoncharutils.h */ +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for fallback */ +/* including simdjson/generic/jsoncharutils.h for fallback: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for fallback */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace icelake { +namespace fallback { namespace { namespace jsoncharutils { @@ -14614,34 +13363,27 @@ static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) } #endif -using internal::value128; - -simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { - value128 answer; -#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS -#ifdef _M_ARM64 - // ARM64 has native support for 64-bit multiplications, no need to emultate - answer.high = __umulh(value1, value2); - answer.low = value1 * value2; -#else - answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 -#endif // _M_ARM64 -#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS - __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; - answer.low = uint64_t(r); - answer.high = uint64_t(r >> 64); -#endif - return answer; -} - } // namespace jsoncharutils } // unnamed namespace -} // namespace icelake +} // namespace fallback } // namespace simdjson -/* end file include/simdjson/generic/jsoncharutils.h */ -/* begin file include/simdjson/generic/atomparsing.h */ + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for fallback */ +/* including simdjson/generic/atomparsing.h for fallback: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for fallback */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + namespace simdjson { -namespace icelake { +namespace fallback { namespace { /// @private namespace atomparsing { @@ -14703,102 +13445,258 @@ simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { } // namespace atomparsing } // unnamed namespace -} // namespace icelake +} // namespace fallback } // namespace simdjson -/* end file include/simdjson/generic/atomparsing.h */ -/* begin file include/simdjson/icelake/stringparsing.h */ -#ifndef SIMDJSON_ICELAKE_STRINGPARSING_H -#define SIMDJSON_ICELAKE_STRINGPARSING_H +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for fallback */ +/* including simdjson/generic/dom_parser_implementation.h for fallback: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for fallback */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace icelake { -namespace { +namespace fallback { -using namespace simd; +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container -// Holds backslashes and quotes locations. -struct backslash_and_quote { +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { public: - static constexpr uint32_t BYTES_PROCESSED = 32; - simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; - simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } - simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } - simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } - simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; - uint64_t bs_bits; - uint64_t quote_bits; -}; // struct backslash_and_quote + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); -simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { - // this can read up to 15 bytes beyond the buffer size, but we require - // SIMDJSON_PADDING of padding - static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); - simd8 v(src); - // store to dest unconditionally - we can overwrite the bits we don't like later - v.store(dst); - return { - static_cast(v == '\\'), // bs_bits - static_cast(v == '"'), // quote_bits - }; -} +}; -} // unnamed namespace -} // namespace icelake +} // namespace fallback } // namespace simdjson -#endif // SIMDJSON_ICELAKE_STRINGPARSING_H -/* end file include/simdjson/icelake/stringparsing.h */ -/* begin file include/simdjson/icelake/numberparsing.h */ -#ifndef SIMDJSON_ICELAKE_NUMBERPARSING_H -#define SIMDJSON_ICELAKE_NUMBERPARSING_H - namespace simdjson { -namespace icelake { -namespace numberparsing { +namespace fallback { -static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { - // this actually computes *16* values so we are being wasteful. - const __m128i ascii0 = _mm_set1_epi8('0'); - const __m128i mul_1_10 = - _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); - const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); - const __m128i mul_1_10000 = - _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); - const __m128i input = _mm_sub_epi8( - _mm_loadu_si128(reinterpret_cast(chars)), ascii0); - const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); - const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); - const __m128i t3 = _mm_packus_epi32(t2, t2); - const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); - return _mm_cvtsi128_si32( - t4); // only captures the sum of the first 8 digits, drop the rest +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; } -} // namespace numberparsing -} // namespace icelake +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace fallback } // namespace simdjson -#define SIMDJSON_SWAR_NUMBER_PARSING 1 +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for fallback */ +/* including simdjson/generic/implementation_simdjson_result_base.h for fallback: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for fallback */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H -/* begin file include/simdjson/generic/numberparsing.h */ -#include +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace icelake { -/// @private -namespace numberparsing { +namespace fallback { +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! /** - * The type of a JSON number + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. */ -enum class number_type { - floating_point_number=1, /// a binary64 number - signed_integer, /// a signed integer that fits in a 64-bit word using two's complement - unsigned_integer /// a positive integer larger or equal to 1<<63 -}; +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for fallback */ +/* including simdjson/generic/numberparsing.h for fallback: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for fallback */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace fallback { +namespace numberparsing { #ifdef JSON_TEST_NUMBERS #define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) @@ -14950,7 +13848,7 @@ simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, // with a returned value of type value128 with a "low component" corresponding to the // 64-bit least significant bits of the product and with a "high component" corresponding // to the 64-bit most significant bits of the product. - simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); // Both i and power_of_five_128[index] have their most significant bit set to 1 which // implies that the either the most or the second most significant bit of the product // is 1. We pack values in this manner for efficiency reasons: it maximizes the use @@ -14984,7 +13882,7 @@ simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, // with a returned value of type value128 with a "low component" corresponding to the // 64-bit least significant bits of the product and with a "high component" corresponding // to the 64-bit most significant bits of the product. - simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); firstproduct.low += secondproduct.high; if(secondproduct.high > firstproduct.low) { firstproduct.high++; } // At this point, we might need to add at most one to firstproduct, but this @@ -16035,6 +14933,8 @@ simdjson_unused simdjson_inline simdjson_result parse_double_in_string(c } // unnamed namespace #endif // SIMDJSON_SKIPNUMBERPARSING +} // namespace numberparsing + inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { switch (type) { case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; @@ -16045,85 +14945,167 @@ inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { return out; } -} // namespace numberparsing -} // namespace icelake +} // namespace fallback } // namespace simdjson -/* end file include/simdjson/generic/numberparsing.h */ - -#endif // SIMDJSON_ICELAKE_NUMBERPARSING_H -/* end file include/simdjson/icelake/numberparsing.h */ -/* begin file include/simdjson/icelake/end.h */ -SIMDJSON_UNTARGET_ICELAKE -/* end file include/simdjson/icelake/end.h */ - -#endif // SIMDJSON_IMPLEMENTATION_ICELAKE -#endif // SIMDJSON_ICELAKE_H -/* end file include/simdjson/icelake.h */ -/* begin file include/simdjson/haswell.h */ -#ifndef SIMDJSON_HASWELL_H -#define SIMDJSON_HASWELL_H +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for fallback */ -#if SIMDJSON_IMPLEMENTATION_HASWELL +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for fallback: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H -#if SIMDJSON_CAN_ALWAYS_RUN_HASWELL -#define SIMDJSON_TARGET_HASWELL -#define SIMDJSON_UNTARGET_HASWELL -#else -#define SIMDJSON_TARGET_HASWELL SIMDJSON_TARGET_REGION("avx2,bmi,pclmul,lzcnt,popcnt") -#define SIMDJSON_UNTARGET_HASWELL SIMDJSON_UNTARGET_REGION -#endif +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -/** - * Implementation for Haswell (Intel AVX2). - */ -namespace haswell { -} // namespace haswell -} // namespace simdjson +namespace fallback { // -// These two need to be included outside SIMDJSON_TARGET_HASWELL +// internal::implementation_simdjson_result_base inline implementation // -/* begin file include/simdjson/haswell/implementation.h */ -#ifndef SIMDJSON_HASWELL_IMPLEMENTATION_H -#define SIMDJSON_HASWELL_IMPLEMENTATION_H +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for fallback */ +/* end file simdjson/generic/amalgamated.h for fallback */ +/* including simdjson/fallback/end.h: #include "simdjson/fallback/end.h" */ +/* begin file simdjson/fallback/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* undefining SIMDJSON_IMPLEMENTATION from "fallback" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/fallback/end.h */ + +#endif // SIMDJSON_FALLBACK_H +/* end file simdjson/fallback.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(haswell) +/* including simdjson/haswell.h: #include "simdjson/haswell.h" */ +/* begin file simdjson/haswell.h */ +#ifndef SIMDJSON_HASWELL_H +#define SIMDJSON_HASWELL_H + +/* including simdjson/haswell/begin.h: #include "simdjson/haswell/begin.h" */ +/* begin file simdjson/haswell/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "haswell" */ +#define SIMDJSON_IMPLEMENTATION haswell + +/* including simdjson/haswell/base.h: #include "simdjson/haswell/base.h" */ +/* begin file simdjson/haswell/base.h */ +#ifndef SIMDJSON_HASWELL_BASE_H +#define SIMDJSON_HASWELL_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ // The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_HASWELL namespace simdjson { +/** + * Implementation for Haswell (Intel AVX2). + */ namespace haswell { -using namespace simdjson; +class implementation; -/** - * @private - */ -class implementation final : public simdjson::implementation { -public: - simdjson_inline implementation() : simdjson::implementation( - "haswell", - "Intel/AMD AVX2", - internal::instruction_set::AVX2 | internal::instruction_set::PCLMULQDQ | internal::instruction_set::BMI1 | internal::instruction_set::BMI2 - ) {} - simdjson_warn_unused error_code create_dom_parser_implementation( - size_t capacity, - size_t max_length, - std::unique_ptr& dst - ) const noexcept final; - simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; - simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; -}; +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace } // namespace haswell } // namespace simdjson -#endif // SIMDJSON_HASWELL_IMPLEMENTATION_H -/* end file include/simdjson/haswell/implementation.h */ -/* begin file include/simdjson/haswell/intrinsics.h */ +#endif // SIMDJSON_HASWELL_BASE_H +/* end file simdjson/haswell/base.h */ +/* including simdjson/haswell/intrinsics.h: #include "simdjson/haswell/intrinsics.h" */ +/* begin file simdjson/haswell/intrinsics.h */ #ifndef SIMDJSON_HASWELL_INTRINSICS_H #define SIMDJSON_HASWELL_INTRINSICS_H +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ #if SIMDJSON_VISUAL_STUDIO // under clang within visual studio, this will include @@ -16170,104 +15152,23 @@ class implementation final : public simdjson::implementation { static_assert(sizeof(__m256i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for haswell kernel."); #endif // SIMDJSON_HASWELL_INTRINSICS_H -/* end file include/simdjson/haswell/intrinsics.h */ +/* end file simdjson/haswell/intrinsics.h */ -// -// The rest need to be inside the region -// -/* begin file include/simdjson/haswell/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "haswell" -// #define SIMDJSON_IMPLEMENTATION haswell -SIMDJSON_TARGET_HASWELL -/* end file include/simdjson/haswell/begin.h */ - -// Declarations -/* begin file include/simdjson/generic/dom_parser_implementation.h */ - -namespace simdjson { -namespace haswell { - -// expectation: sizeof(open_container) = 64/8. -struct open_container { - uint32_t tape_index; // where, on the tape, does the scope ([,{) begins - uint32_t count; // how many elements in the scope -}; // struct open_container - -static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); - -class dom_parser_implementation final : public internal::dom_parser_implementation { -public: - /** Tape location of each open { or [ */ - std::unique_ptr open_containers{}; - /** Whether each open container is a [ or { */ - std::unique_ptr is_array{}; - /** Buffer passed to stage 1 */ - const uint8_t *buf{}; - /** Length passed to stage 1 */ - size_t len{0}; - /** Document passed to stage 2 */ - dom::document *doc{}; - - inline dom_parser_implementation() noexcept; - inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; - inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; - dom_parser_implementation(const dom_parser_implementation &) = delete; - dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; - - simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; - simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; - simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; - simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; - inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; - inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; -private: - simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); - -}; - -} // namespace haswell -} // namespace simdjson - -namespace simdjson { -namespace haswell { - -inline dom_parser_implementation::dom_parser_implementation() noexcept = default; -inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; -inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; - -// Leaving these here so they can be inlined if so desired -inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { - if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } - // Stage 1 index output - size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; - structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); - if (!structural_indexes) { _capacity = 0; return MEMALLOC; } - structural_indexes[0] = 0; - n_structural_indexes = 0; - - _capacity = capacity; - return SUCCESS; -} - -inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { - // Stage 2 stacks - open_containers.reset(new (std::nothrow) open_container[max_depth]); - is_array.reset(new (std::nothrow) bool[max_depth]); - if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } - - _max_depth = max_depth; - return SUCCESS; -} +#if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL +SIMDJSON_TARGET_REGION("avx2,bmi,pclmul,lzcnt,popcnt") +#endif -} // namespace haswell -} // namespace simdjson -/* end file include/simdjson/generic/dom_parser_implementation.h */ -/* begin file include/simdjson/haswell/bitmanipulation.h */ +/* including simdjson/haswell/bitmanipulation.h: #include "simdjson/haswell/bitmanipulation.h" */ +/* begin file simdjson/haswell/bitmanipulation.h */ #ifndef SIMDJSON_HASWELL_BITMANIPULATION_H #define SIMDJSON_HASWELL_BITMANIPULATION_H +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmask.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { namespace haswell { namespace { @@ -16305,7 +15206,7 @@ simdjson_inline int leading_zeroes(uint64_t input_num) { #if SIMDJSON_REGULAR_VISUAL_STUDIO simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { - // note: we do not support legacy 32-bit Windows + // note: we do not support legacy 32-bit Windows in this kernel return __popcnt64(input_num);// Visual Studio wants two underscores } #else @@ -16330,11 +15231,17 @@ simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, } // namespace simdjson #endif // SIMDJSON_HASWELL_BITMANIPULATION_H -/* end file include/simdjson/haswell/bitmanipulation.h */ -/* begin file include/simdjson/haswell/bitmask.h */ +/* end file simdjson/haswell/bitmanipulation.h */ +/* including simdjson/haswell/bitmask.h: #include "simdjson/haswell/bitmask.h" */ +/* begin file simdjson/haswell/bitmask.h */ #ifndef SIMDJSON_HASWELL_BITMASK_H #define SIMDJSON_HASWELL_BITMASK_H +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { namespace haswell { namespace { @@ -16357,11 +15264,82 @@ simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { } // namespace simdjson #endif // SIMDJSON_HASWELL_BITMASK_H -/* end file include/simdjson/haswell/bitmask.h */ -/* begin file include/simdjson/haswell/simd.h */ +/* end file simdjson/haswell/bitmask.h */ +/* including simdjson/haswell/numberparsing_defs.h: #include "simdjson/haswell/numberparsing_defs.h" */ +/* begin file simdjson/haswell/numberparsing_defs.h */ +#ifndef SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H +#define SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace haswell +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H +/* end file simdjson/haswell/numberparsing_defs.h */ +/* including simdjson/haswell/simd.h: #include "simdjson/haswell/simd.h" */ +/* begin file simdjson/haswell/simd.h */ #ifndef SIMDJSON_HASWELL_SIMD_H #define SIMDJSON_HASWELL_SIMD_H +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace haswell { @@ -16725,8 +15703,124 @@ namespace simd { } // namespace simdjson #endif // SIMDJSON_HASWELL_SIMD_H -/* end file include/simdjson/haswell/simd.h */ -/* begin file include/simdjson/generic/jsoncharutils.h */ +/* end file simdjson/haswell/simd.h */ +/* including simdjson/haswell/stringparsing_defs.h: #include "simdjson/haswell/stringparsing_defs.h" */ +/* begin file simdjson/haswell/stringparsing_defs.h */ +#ifndef SIMDJSON_HASWELL_STRINGPARSING_DEFS_H +#define SIMDJSON_HASWELL_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast((v == '\\').to_bitmask()), // bs_bits + static_cast((v == '"').to_bitmask()), // quote_bits + }; +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_STRINGPARSING_DEFS_H +/* end file simdjson/haswell/stringparsing_defs.h */ +/* end file simdjson/haswell/begin.h */ +/* including simdjson/generic/amalgamated.h for haswell: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for haswell */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for haswell: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for haswell */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { + +struct open_container; +class dom_parser_implementation; + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for haswell */ +/* including simdjson/generic/jsoncharutils.h for haswell: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for haswell */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace haswell { @@ -16817,32 +15911,25 @@ static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) } #endif -using internal::value128; - -simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { - value128 answer; -#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS -#ifdef _M_ARM64 - // ARM64 has native support for 64-bit multiplications, no need to emultate - answer.high = __umulh(value1, value2); - answer.low = value1 * value2; -#else - answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 -#endif // _M_ARM64 -#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS - __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; - answer.low = uint64_t(r); - answer.high = uint64_t(r >> 64); -#endif - return answer; -} - } // namespace jsoncharutils } // unnamed namespace } // namespace haswell } // namespace simdjson -/* end file include/simdjson/generic/jsoncharutils.h */ -/* begin file include/simdjson/generic/atomparsing.h */ + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for haswell */ +/* including simdjson/generic/atomparsing.h for haswell: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for haswell */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + namespace simdjson { namespace haswell { namespace { @@ -16908,101 +15995,256 @@ simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { } // unnamed namespace } // namespace haswell } // namespace simdjson -/* end file include/simdjson/generic/atomparsing.h */ -/* begin file include/simdjson/haswell/stringparsing.h */ -#ifndef SIMDJSON_HASWELL_STRINGPARSING_H -#define SIMDJSON_HASWELL_STRINGPARSING_H +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for haswell */ +/* including simdjson/generic/dom_parser_implementation.h for haswell: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for haswell */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace haswell { -namespace { -using namespace simd; +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container -// Holds backslashes and quotes locations. -struct backslash_and_quote { +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { public: - static constexpr uint32_t BYTES_PROCESSED = 32; - simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; - simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } - simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } - simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } - simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; - uint32_t bs_bits; - uint32_t quote_bits; -}; // struct backslash_and_quote + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); -simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { - // this can read up to 15 bytes beyond the buffer size, but we require - // SIMDJSON_PADDING of padding - static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); - simd8 v(src); - // store to dest unconditionally - we can overwrite the bits we don't like later - v.store(dst); - return { - static_cast((v == '\\').to_bitmask()), // bs_bits - static_cast((v == '"').to_bitmask()), // quote_bits - }; -} +}; -} // unnamed namespace } // namespace haswell } // namespace simdjson -#endif // SIMDJSON_HASWELL_STRINGPARSING_H -/* end file include/simdjson/haswell/stringparsing.h */ -/* begin file include/simdjson/haswell/numberparsing.h */ -#ifndef SIMDJSON_HASWELL_NUMBERPARSING_H -#define SIMDJSON_HASWELL_NUMBERPARSING_H - namespace simdjson { namespace haswell { -namespace numberparsing { -/** @private */ -static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { - // this actually computes *16* values so we are being wasteful. - const __m128i ascii0 = _mm_set1_epi8('0'); - const __m128i mul_1_10 = - _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); - const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); - const __m128i mul_1_10000 = - _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); - const __m128i input = _mm_sub_epi8( - _mm_loadu_si128(reinterpret_cast(chars)), ascii0); - const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); - const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); - const __m128i t3 = _mm_packus_epi32(t2, t2); - const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); - return _mm_cvtsi128_si32( - t4); // only captures the sum of the first 8 digits, drop the rest +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; } -} // namespace numberparsing } // namespace haswell } // namespace simdjson -#define SIMDJSON_SWAR_NUMBER_PARSING 1 +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for haswell */ +/* including simdjson/generic/implementation_simdjson_result_base.h for haswell: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for haswell */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H -/* begin file include/simdjson/generic/numberparsing.h */ -#include +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace haswell { -/// @private -namespace numberparsing { +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! /** - * The type of a JSON number + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. */ -enum class number_type { - floating_point_number=1, /// a binary64 number - signed_integer, /// a signed integer that fits in a 64-bit word using two's complement - unsigned_integer /// a positive integer larger or equal to 1<<63 -}; +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for haswell */ +/* including simdjson/generic/numberparsing.h for haswell: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for haswell */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace haswell { +namespace numberparsing { #ifdef JSON_TEST_NUMBERS #define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) @@ -17154,7 +16396,7 @@ simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, // with a returned value of type value128 with a "low component" corresponding to the // 64-bit least significant bits of the product and with a "high component" corresponding // to the 64-bit most significant bits of the product. - simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); // Both i and power_of_five_128[index] have their most significant bit set to 1 which // implies that the either the most or the second most significant bit of the product // is 1. We pack values in this manner for efficiency reasons: it maximizes the use @@ -17188,7 +16430,7 @@ simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, // with a returned value of type value128 with a "low component" corresponding to the // 64-bit least significant bits of the product and with a "high component" corresponding // to the 64-bit most significant bits of the product. - simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); firstproduct.low += secondproduct.high; if(secondproduct.high > firstproduct.low) { firstproduct.high++; } // At this point, we might need to add at most one to firstproduct, but this @@ -18239,6 +17481,8 @@ simdjson_unused simdjson_inline simdjson_result parse_double_in_string(c } // unnamed namespace #endif // SIMDJSON_SKIPNUMBERPARSING +} // namespace numberparsing + inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { switch (type) { case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; @@ -18249,189 +17493,235 @@ inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { return out; } -} // namespace numberparsing } // namespace haswell } // namespace simdjson -/* end file include/simdjson/generic/numberparsing.h */ - -#endif // SIMDJSON_HASWELL_NUMBERPARSING_H -/* end file include/simdjson/haswell/numberparsing.h */ -/* begin file include/simdjson/haswell/end.h */ -SIMDJSON_UNTARGET_HASWELL -/* end file include/simdjson/haswell/end.h */ -#endif // SIMDJSON_IMPLEMENTATION_HASWELL -#endif // SIMDJSON_HASWELL_COMMON_H -/* end file include/simdjson/haswell.h */ -/* begin file include/simdjson/ppc64.h */ -#ifndef SIMDJSON_PPC64_H -#define SIMDJSON_PPC64_H +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for haswell */ +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for haswell: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H -#if SIMDJSON_IMPLEMENTATION_PPC64 +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -/** - * Implementation for ALTIVEC (PPC64). - */ -namespace ppc64 { -} // namespace ppc64 -} // namespace simdjson - -/* begin file include/simdjson/ppc64/implementation.h */ -#ifndef SIMDJSON_PPC64_IMPLEMENTATION_H -#define SIMDJSON_PPC64_IMPLEMENTATION_H - +namespace haswell { -namespace simdjson { -namespace ppc64 { +// +// internal::implementation_simdjson_result_base inline implementation +// -namespace { -using namespace simdjson; -using namespace simdjson::dom; -} // namespace +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} -/** - * @private - */ -class implementation final : public simdjson::implementation { -public: - simdjson_inline implementation() - : simdjson::implementation("ppc64", "PPC64 ALTIVEC", - internal::instruction_set::ALTIVEC) {} - simdjson_warn_unused error_code create_dom_parser_implementation( - size_t capacity, size_t max_length, - std::unique_ptr &dst) - const noexcept final; - simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, - uint8_t *dst, - size_t &dst_len) const noexcept final; - simdjson_warn_unused bool validate_utf8(const char *buf, - size_t len) const noexcept final; -}; +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} -} // namespace ppc64 -} // namespace simdjson +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} -#endif // SIMDJSON_PPC64_IMPLEMENTATION_H -/* end file include/simdjson/ppc64/implementation.h */ +#if SIMDJSON_EXCEPTIONS -/* begin file include/simdjson/ppc64/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "ppc64" -// #define SIMDJSON_IMPLEMENTATION ppc64 -/* end file include/simdjson/ppc64/begin.h */ +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} -// Declarations -/* begin file include/simdjson/generic/dom_parser_implementation.h */ +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} -namespace simdjson { -namespace ppc64 { +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} -// expectation: sizeof(open_container) = 64/8. -struct open_container { - uint32_t tape_index; // where, on the tape, does the scope ([,{) begins - uint32_t count; // how many elements in the scope -}; // struct open_container +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} -static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); +#endif // SIMDJSON_EXCEPTIONS -class dom_parser_implementation final : public internal::dom_parser_implementation { -public: - /** Tape location of each open { or [ */ - std::unique_ptr open_containers{}; - /** Whether each open container is a [ or { */ - std::unique_ptr is_array{}; - /** Buffer passed to stage 1 */ - const uint8_t *buf{}; - /** Length passed to stage 1 */ - size_t len{0}; - /** Document passed to stage 2 */ - dom::document *doc{}; +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} - inline dom_parser_implementation() noexcept; - inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; - inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; - dom_parser_implementation(const dom_parser_implementation &) = delete; - dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} - simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; - simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; - simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; - simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; - inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; - inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; -private: - simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} -}; +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} -} // namespace ppc64 +} // namespace haswell } // namespace simdjson -namespace simdjson { -namespace ppc64 { +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for haswell */ +/* end file simdjson/generic/amalgamated.h for haswell */ +/* including simdjson/haswell/end.h: #include "simdjson/haswell/end.h" */ +/* begin file simdjson/haswell/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL +SIMDJSON_UNTARGET_REGION +#endif -inline dom_parser_implementation::dom_parser_implementation() noexcept = default; -inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; -inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; +/* undefining SIMDJSON_IMPLEMENTATION from "haswell" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/haswell/end.h */ -// Leaving these here so they can be inlined if so desired -inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { - if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } - // Stage 1 index output - size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; - structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); - if (!structural_indexes) { _capacity = 0; return MEMALLOC; } - structural_indexes[0] = 0; - n_structural_indexes = 0; +#endif // SIMDJSON_HASWELL_H +/* end file simdjson/haswell.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(icelake) +/* including simdjson/icelake.h: #include "simdjson/icelake.h" */ +/* begin file simdjson/icelake.h */ +#ifndef SIMDJSON_ICELAKE_H +#define SIMDJSON_ICELAKE_H - _capacity = capacity; - return SUCCESS; -} +/* including simdjson/icelake/begin.h: #include "simdjson/icelake/begin.h" */ +/* begin file simdjson/icelake/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "icelake" */ +#define SIMDJSON_IMPLEMENTATION icelake +/* including simdjson/icelake/base.h: #include "simdjson/icelake/base.h" */ +/* begin file simdjson/icelake/base.h */ +#ifndef SIMDJSON_ICELAKE_BASE_H +#define SIMDJSON_ICELAKE_BASE_H -inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { - // Stage 2 stacks - open_containers.reset(new (std::nothrow) open_container[max_depth]); - is_array.reset(new (std::nothrow) bool[max_depth]); - if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - _max_depth = max_depth; - return SUCCESS; -} +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE +namespace simdjson { +/** + * Implementation for Icelake (Intel AVX512). + */ +namespace icelake { -} // namespace ppc64 +class implementation; + +} // namespace icelake } // namespace simdjson -/* end file include/simdjson/generic/dom_parser_implementation.h */ -/* begin file include/simdjson/ppc64/intrinsics.h */ -#ifndef SIMDJSON_PPC64_INTRINSICS_H -#define SIMDJSON_PPC64_INTRINSICS_H +#endif // SIMDJSON_ICELAKE_BASE_H +/* end file simdjson/icelake/base.h */ +/* including simdjson/icelake/intrinsics.h: #include "simdjson/icelake/intrinsics.h" */ +/* begin file simdjson/icelake/intrinsics.h */ +#ifndef SIMDJSON_ICELAKE_INTRINSICS_H +#define SIMDJSON_ICELAKE_INTRINSICS_H -// This should be the correct header whether -// you use visual studio or other compilers. -#include +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -// These are defined by altivec.h in GCC toolchain, it is safe to undef them. -#ifdef bool -#undef bool -#endif +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO -#ifdef vector -#undef vector +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// Important: we need the AVX-512 headers: +#include +#include +#include +#include +#include +#include +#include +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m512i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for icelake"); + +#endif // SIMDJSON_ICELAKE_INTRINSICS_H +/* end file simdjson/icelake/intrinsics.h */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +SIMDJSON_TARGET_REGION("avx512f,avx512dq,avx512cd,avx512bw,avx512vbmi,avx512vbmi2,avx512vl,avx2,bmi,pclmul,lzcnt,popcnt") #endif -static_assert(sizeof(__vector unsigned char) <= simdjson::SIMDJSON_PADDING, "insufficient padding for ppc64"); +/* including simdjson/icelake/bitmanipulation.h: #include "simdjson/icelake/bitmanipulation.h" */ +/* begin file simdjson/icelake/bitmanipulation.h */ +#ifndef SIMDJSON_ICELAKE_BITMANIPULATION_H +#define SIMDJSON_ICELAKE_BITMANIPULATION_H -#endif // SIMDJSON_PPC64_INTRINSICS_H -/* end file include/simdjson/ppc64/intrinsics.h */ -/* begin file include/simdjson/ppc64/bitmanipulation.h */ -#ifndef SIMDJSON_PPC64_BITMANIPULATION_H -#define SIMDJSON_PPC64_BITMANIPULATION_H +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace ppc64 { +namespace icelake { namespace { // We sometimes call trailing_zero on inputs that are zero, @@ -18444,52 +17734,43 @@ SIMDJSON_NO_SANITIZE_UNDEFINED SIMDJSON_NO_SANITIZE_MEMORY simdjson_inline int trailing_zeroes(uint64_t input_num) { #if SIMDJSON_REGULAR_VISUAL_STUDIO - unsigned long ret; - // Search the mask data from least significant bit (LSB) - // to the most significant bit (MSB) for a set bit (1). - _BitScanForward64(&ret, input_num); - return (int)ret; -#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// return __builtin_ctzll(input_num); #endif // SIMDJSON_REGULAR_VISUAL_STUDIO } /* result might be undefined when input_num is zero */ simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { - return input_num & (input_num - 1); + return _blsr_u64(input_num); } /* result might be undefined when input_num is zero */ simdjson_inline int leading_zeroes(uint64_t input_num) { -#if SIMDJSON_REGULAR_VISUAL_STUDIO - unsigned long leading_zero = 0; - // Search the mask data from most significant bit (MSB) - // to least significant bit (LSB) for a set bit (1). - if (_BitScanReverse64(&leading_zero, input_num)) - return (int)(63 - leading_zero); - else - return 64; -#else - return __builtin_clzll(input_num); -#endif // SIMDJSON_REGULAR_VISUAL_STUDIO + return int(_lzcnt_u64(input_num)); } #if SIMDJSON_REGULAR_VISUAL_STUDIO -simdjson_inline int count_ones(uint64_t input_num) { +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { // note: we do not support legacy 32-bit Windows - return __popcnt64(input_num); // Visual Studio wants two underscores + return __popcnt64(input_num);// Visual Studio wants two underscores } #else -simdjson_inline int count_ones(uint64_t input_num) { - return __builtin_popcountll(input_num); +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); } #endif simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, - uint64_t *result) { + uint64_t *result) { #if SIMDJSON_REGULAR_VISUAL_STUDIO - *result = value1 + value2; - return *result < value1; + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); #else return __builtin_uaddll_overflow(value1, value2, reinterpret_cast(result)); @@ -18497,4410 +17778,60228 @@ simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, } } // unnamed namespace -} // namespace ppc64 +} // namespace icelake } // namespace simdjson -#endif // SIMDJSON_PPC64_BITMANIPULATION_H -/* end file include/simdjson/ppc64/bitmanipulation.h */ -/* begin file include/simdjson/ppc64/bitmask.h */ -#ifndef SIMDJSON_PPC64_BITMASK_H -#define SIMDJSON_PPC64_BITMASK_H +#endif // SIMDJSON_ICELAKE_BITMANIPULATION_H +/* end file simdjson/icelake/bitmanipulation.h */ +/* including simdjson/icelake/bitmask.h: #include "simdjson/icelake/bitmask.h" */ +/* begin file simdjson/icelake/bitmask.h */ +#ifndef SIMDJSON_ICELAKE_BITMASK_H +#define SIMDJSON_ICELAKE_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace ppc64 { +namespace icelake { namespace { // -// Perform a "cumulative bitwise xor," flipping bits each time a 1 is -// encountered. +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. // // For example, prefix_xor(00100100) == 00011100 // -simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { - // You can use the version below, however gcc sometimes miscompiles - // vec_pmsum_be, it happens somewhere around between 8 and 9th version. - // The performance boost was not noticeable, falling back to a usual - // implementation. - // __vector unsigned long long all_ones = {~0ull, ~0ull}; - // __vector unsigned long long mask = {bitmask, 0}; - // // Clang and GCC return different values for pmsum for ull so cast it to one. - // // Generally it is not specified by ALTIVEC ISA what is returned by - // // vec_pmsum_be. - // #if defined(__LITTLE_ENDIAN__) - // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[0]); - // #else - // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[1]); - // #endif - bitmask ^= bitmask << 1; - bitmask ^= bitmask << 2; - bitmask ^= bitmask << 4; - bitmask ^= bitmask << 8; - bitmask ^= bitmask << 16; - bitmask ^= bitmask << 32; - return bitmask; +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); } } // unnamed namespace -} // namespace ppc64 +} // namespace icelake } // namespace simdjson -#endif -/* end file include/simdjson/ppc64/bitmask.h */ -/* begin file include/simdjson/ppc64/simd.h */ -#ifndef SIMDJSON_PPC64_SIMD_H -#define SIMDJSON_PPC64_SIMD_H +#endif // SIMDJSON_ICELAKE_BITMASK_H +/* end file simdjson/icelake/bitmask.h */ +/* including simdjson/icelake/simd.h: #include "simdjson/icelake/simd.h" */ +/* begin file simdjson/icelake/simd.h */ +#ifndef SIMDJSON_ICELAKE_SIMD_H +#define SIMDJSON_ICELAKE_SIMD_H -#include +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -namespace simdjson { -namespace ppc64 { -namespace { -namespace simd { +#if defined(__GNUC__) && !defined(__clang__) +#if __GNUC__ == 8 +#define SIMDJSON_GCC8 1 +#endif // __GNUC__ == 8 +#endif // defined(__GNUC__) && !defined(__clang__) -using __m128i = __vector unsigned char; +#if SIMDJSON_GCC8 +/** + * GCC 8 fails to provide _mm512_set_epi8. We roll our own. + */ +inline __m512i _mm512_set_epi8(uint8_t a0, uint8_t a1, uint8_t a2, uint8_t a3, uint8_t a4, uint8_t a5, uint8_t a6, uint8_t a7, uint8_t a8, uint8_t a9, uint8_t a10, uint8_t a11, uint8_t a12, uint8_t a13, uint8_t a14, uint8_t a15, uint8_t a16, uint8_t a17, uint8_t a18, uint8_t a19, uint8_t a20, uint8_t a21, uint8_t a22, uint8_t a23, uint8_t a24, uint8_t a25, uint8_t a26, uint8_t a27, uint8_t a28, uint8_t a29, uint8_t a30, uint8_t a31, uint8_t a32, uint8_t a33, uint8_t a34, uint8_t a35, uint8_t a36, uint8_t a37, uint8_t a38, uint8_t a39, uint8_t a40, uint8_t a41, uint8_t a42, uint8_t a43, uint8_t a44, uint8_t a45, uint8_t a46, uint8_t a47, uint8_t a48, uint8_t a49, uint8_t a50, uint8_t a51, uint8_t a52, uint8_t a53, uint8_t a54, uint8_t a55, uint8_t a56, uint8_t a57, uint8_t a58, uint8_t a59, uint8_t a60, uint8_t a61, uint8_t a62, uint8_t a63) { + return _mm512_set_epi64(uint64_t(a7) + (uint64_t(a6) << 8) + (uint64_t(a5) << 16) + (uint64_t(a4) << 24) + (uint64_t(a3) << 32) + (uint64_t(a2) << 40) + (uint64_t(a1) << 48) + (uint64_t(a0) << 56), + uint64_t(a15) + (uint64_t(a14) << 8) + (uint64_t(a13) << 16) + (uint64_t(a12) << 24) + (uint64_t(a11) << 32) + (uint64_t(a10) << 40) + (uint64_t(a9) << 48) + (uint64_t(a8) << 56), + uint64_t(a23) + (uint64_t(a22) << 8) + (uint64_t(a21) << 16) + (uint64_t(a20) << 24) + (uint64_t(a19) << 32) + (uint64_t(a18) << 40) + (uint64_t(a17) << 48) + (uint64_t(a16) << 56), + uint64_t(a31) + (uint64_t(a30) << 8) + (uint64_t(a29) << 16) + (uint64_t(a28) << 24) + (uint64_t(a27) << 32) + (uint64_t(a26) << 40) + (uint64_t(a25) << 48) + (uint64_t(a24) << 56), + uint64_t(a39) + (uint64_t(a38) << 8) + (uint64_t(a37) << 16) + (uint64_t(a36) << 24) + (uint64_t(a35) << 32) + (uint64_t(a34) << 40) + (uint64_t(a33) << 48) + (uint64_t(a32) << 56), + uint64_t(a47) + (uint64_t(a46) << 8) + (uint64_t(a45) << 16) + (uint64_t(a44) << 24) + (uint64_t(a43) << 32) + (uint64_t(a42) << 40) + (uint64_t(a41) << 48) + (uint64_t(a40) << 56), + uint64_t(a55) + (uint64_t(a54) << 8) + (uint64_t(a53) << 16) + (uint64_t(a52) << 24) + (uint64_t(a51) << 32) + (uint64_t(a50) << 40) + (uint64_t(a49) << 48) + (uint64_t(a48) << 56), + uint64_t(a63) + (uint64_t(a62) << 8) + (uint64_t(a61) << 16) + (uint64_t(a60) << 24) + (uint64_t(a59) << 32) + (uint64_t(a58) << 40) + (uint64_t(a57) << 48) + (uint64_t(a56) << 56)); +} +#endif // SIMDJSON_GCC8 -template struct base { - __m128i value; - // Zero constructor - simdjson_inline base() : value{__m128i()} {} - // Conversion from SIMD register - simdjson_inline base(const __m128i _value) : value(_value) {} +namespace simdjson { +namespace icelake { +namespace { +namespace simd { - // Conversion to SIMD register - simdjson_inline operator const __m128i &() const { - return this->value; - } - simdjson_inline operator __m128i &() { return this->value; } + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m512i value; - // Bit operations - simdjson_inline Child operator|(const Child other) const { - return vec_or(this->value, (__m128i)other); - } - simdjson_inline Child operator&(const Child other) const { - return vec_and(this->value, (__m128i)other); - } - simdjson_inline Child operator^(const Child other) const { - return vec_xor(this->value, (__m128i)other); - } - simdjson_inline Child bit_andnot(const Child other) const { - return vec_andc(this->value, (__m128i)other); - } - simdjson_inline Child &operator|=(const Child other) { - auto this_cast = static_cast(this); - *this_cast = *this_cast | other; - return *this_cast; - } - simdjson_inline Child &operator&=(const Child other) { - auto this_cast = static_cast(this); - *this_cast = *this_cast & other; - return *this_cast; - } - simdjson_inline Child &operator^=(const Child other) { - auto this_cast = static_cast(this); - *this_cast = *this_cast ^ other; - return *this_cast; - } -}; + // Zero constructor + simdjson_inline base() : value{__m512i()} {} -// Forward-declared so they can be used by splat and friends. -template struct simd8; + // Conversion from SIMD register + simdjson_inline base(const __m512i _value) : value(_value) {} -template > -struct base8 : base> { - typedef uint16_t bitmask_t; - typedef uint32_t bitmask2_t; + // Conversion to SIMD register + simdjson_inline operator const __m512i&() const { return this->value; } + simdjson_inline operator __m512i&() { return this->value; } - simdjson_inline base8() : base>() {} - simdjson_inline base8(const __m128i _value) : base>(_value) {} + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm512_or_si512(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm512_and_si512(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm512_xor_si512(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm512_andnot_si512(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; - friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { - return (__m128i)vec_cmpeq(lhs.value, (__m128i)rhs); - } + // Forward-declared so they can be used by splat and friends. + template + struct simd8; - static const int SIZE = sizeof(base>::value); + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; - template - simdjson_inline simd8 prev(simd8 prev_chunk) const { - __m128i chunk = this->value; -#ifdef __LITTLE_ENDIAN__ - chunk = (__m128i)vec_reve(this->value); - prev_chunk = (__m128i)vec_reve((__m128i)prev_chunk); -#endif - chunk = (__m128i)vec_sld((__m128i)prev_chunk, (__m128i)chunk, 16 - N); -#ifdef __LITTLE_ENDIAN__ - chunk = (__m128i)vec_reve((__m128i)chunk); -#endif - return chunk; - } -}; + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m512i _value) : base>(_value) {} -// SIMD byte mask type (returned by things like eq and gt) -template <> struct simd8 : base8 { - static simdjson_inline simd8 splat(bool _value) { - return (__m128i)vec_splats((unsigned char)(-(!!_value))); - } + friend simdjson_really_inline uint64_t operator==(const simd8 lhs, const simd8 rhs) { + return _mm512_cmpeq_epi8_mask(lhs, rhs); + } - simdjson_inline simd8() : base8() {} - simdjson_inline simd8(const __m128i _value) - : base8(_value) {} - // Splat constructor - simdjson_inline simd8(bool _value) - : base8(splat(_value)) {} + static const int SIZE = sizeof(base::value); - simdjson_inline int to_bitmask() const { - __vector unsigned long long result; - const __m128i perm_mask = {0x78, 0x70, 0x68, 0x60, 0x58, 0x50, 0x48, 0x40, - 0x38, 0x30, 0x28, 0x20, 0x18, 0x10, 0x08, 0x00}; + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + // workaround for compilers unable to figure out that 16 - N is a constant (GCC 8) + constexpr int shift = 16 - N; + return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift); + } + }; - result = ((__vector unsigned long long)vec_vbpermq((__m128i)this->value, - (__m128i)perm_mask)); -#ifdef __LITTLE_ENDIAN__ - return static_cast(result[1]); -#else - return static_cast(result[0]); -#endif - } - simdjson_inline bool any() const { - return !vec_all_eq(this->value, (__m128i)vec_splats(0)); - } - simdjson_inline simd8 operator~() const { - return this->value ^ (__m128i)splat(true); - } -}; + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm512_set1_epi8(uint8_t(-(!!_value))); } -template struct base8_numeric : base8 { + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m512i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + simdjson_inline bool any() const { return !!_mm512_test_epi8_mask (*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm512_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm512_setzero_si512(); } + static simdjson_inline simd8 load(const T values[64]) { + return _mm512_loadu_si512(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m512i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[64]) const { return _mm512_storeu_si512(reinterpret_cast<__m512i *>(dst), *this); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm512_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm512_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm512_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint64_t mask, L * output) const { + _mm512_mask_compressstoreu_epi8 (output,~mask,*this); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31, + int8_t v32, int8_t v33, int8_t v34, int8_t v35, int8_t v36, int8_t v37, int8_t v38, int8_t v39, + int8_t v40, int8_t v41, int8_t v42, int8_t v43, int8_t v44, int8_t v45, int8_t v46, int8_t v47, + int8_t v48, int8_t v49, int8_t v50, int8_t v51, int8_t v52, int8_t v53, int8_t v54, int8_t v55, + int8_t v56, int8_t v57, int8_t v58, int8_t v59, int8_t v60, int8_t v61, int8_t v62, int8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epi8(*this, other); } + + simdjson_inline simd8 operator>(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(*this, other),_mm512_set1_epi8(uint8_t(0x80))); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(other, *this),_mm512_set1_epi8(uint8_t(0x80))); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31, + uint8_t v32, uint8_t v33, uint8_t v34, uint8_t v35, uint8_t v36, uint8_t v37, uint8_t v38, uint8_t v39, + uint8_t v40, uint8_t v41, uint8_t v42, uint8_t v43, uint8_t v44, uint8_t v45, uint8_t v46, uint8_t v47, + uint8_t v48, uint8_t v49, uint8_t v50, uint8_t v51, uint8_t v52, uint8_t v53, uint8_t v54, uint8_t v55, + uint8_t v56, uint8_t v57, uint8_t v58, uint8_t v59, uint8_t v60, uint8_t v61, uint8_t v62, uint8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm512_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm512_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline uint64_t operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline uint64_t operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return _mm512_mask_blend_epi8(*this == uint8_t(0), _mm512_set1_epi8(0), _mm512_set1_epi8(-1)); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + + simdjson_inline bool is_ascii() const { return _mm512_movepi8_mask(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { + return !_mm512_test_epi8_mask(*this, *this); + } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return !_mm512_test_epi8_mask(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm512_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm512_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline uint64_t get_bit() const { return _mm512_movepi8_mask(_mm512_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 1, "Icelake kernel should use one register per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const simd8 chunk0) : chunks{chunk0} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(mask, output); + return 64 - count_ones(mask); + } + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + } + + simdjson_inline simd8 reduce_or() const { + return this->chunks[0]; + } + + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask + ); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] == mask; + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return this->chunks[0] == other.chunks[0]; + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] <= mask; + } + }; // struct simd8x64 + +} // namespace simd + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_SIMD_H +/* end file simdjson/icelake/simd.h */ +/* including simdjson/icelake/stringparsing_defs.h: #include "simdjson/icelake/stringparsing_defs.h" */ +/* begin file simdjson/icelake/stringparsing_defs.h */ +#ifndef SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H +#define SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint64_t bs_bits; + uint64_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast(v == '\\'), // bs_bits + static_cast(v == '"'), // quote_bits + }; +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H +/* end file simdjson/icelake/stringparsing_defs.h */ +/* including simdjson/icelake/numberparsing_defs.h: #include "simdjson/icelake/numberparsing_defs.h" */ +/* begin file simdjson/icelake/numberparsing_defs.h */ +#ifndef SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H +#define SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace numberparsing { + +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace icelake +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H +/* end file simdjson/icelake/numberparsing_defs.h */ +/* end file simdjson/icelake/begin.h */ +/* including simdjson/generic/amalgamated.h for icelake: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for icelake */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for icelake: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for icelake */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { + +struct open_container; +class dom_parser_implementation; + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for icelake */ +/* including simdjson/generic/jsoncharutils.h for icelake: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for icelake */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for icelake */ +/* including simdjson/generic/atomparsing.h for icelake: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for icelake */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace icelake { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for icelake */ +/* including simdjson/generic/dom_parser_implementation.h for icelake: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for icelake */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace icelake +} // namespace simdjson + +namespace simdjson { +namespace icelake { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for icelake */ +/* including simdjson/generic/implementation_simdjson_result_base.h for icelake: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for icelake */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for icelake */ +/* including simdjson/generic/numberparsing.h for icelake: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for icelake */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace icelake { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +} // namespace numberparsing + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for icelake */ + +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for icelake: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for icelake */ +/* end file simdjson/generic/amalgamated.h for icelake */ +/* including simdjson/icelake/end.h: #include "simdjson/icelake/end.h" */ +/* begin file simdjson/icelake/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "icelake" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/icelake/end.h */ + +#endif // SIMDJSON_ICELAKE_H +/* end file simdjson/icelake.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(ppc64) +/* including simdjson/ppc64.h: #include "simdjson/ppc64.h" */ +/* begin file simdjson/ppc64.h */ +#ifndef SIMDJSON_PPC64_H +#define SIMDJSON_PPC64_H + +/* including simdjson/ppc64/begin.h: #include "simdjson/ppc64/begin.h" */ +/* begin file simdjson/ppc64/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "ppc64" */ +#define SIMDJSON_IMPLEMENTATION ppc64 +/* including simdjson/ppc64/base.h: #include "simdjson/ppc64/base.h" */ +/* begin file simdjson/ppc64/base.h */ +#ifndef SIMDJSON_PPC64_BASE_H +#define SIMDJSON_PPC64_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Implementation for ALTIVEC (PPC64). + */ +namespace ppc64 { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_BASE_H +/* end file simdjson/ppc64/base.h */ +/* including simdjson/ppc64/intrinsics.h: #include "simdjson/ppc64/intrinsics.h" */ +/* begin file simdjson/ppc64/intrinsics.h */ +#ifndef SIMDJSON_PPC64_INTRINSICS_H +#define SIMDJSON_PPC64_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +// These are defined by altivec.h in GCC toolchain, it is safe to undef them. +#ifdef bool +#undef bool +#endif + +#ifdef vector +#undef vector +#endif + +static_assert(sizeof(__vector unsigned char) <= simdjson::SIMDJSON_PADDING, "insufficient padding for ppc64"); + +#endif // SIMDJSON_PPC64_INTRINSICS_H +/* end file simdjson/ppc64/intrinsics.h */ +/* including simdjson/ppc64/bitmanipulation.h: #include "simdjson/ppc64/bitmanipulation.h" */ +/* begin file simdjson/ppc64/bitmanipulation.h */ +#ifndef SIMDJSON_PPC64_BITMANIPULATION_H +#define SIMDJSON_PPC64_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num - 1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline int count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num); // Visual Studio wants two underscores +} +#else +simdjson_inline int count_ones(uint64_t input_num) { + return __builtin_popcountll(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_BITMANIPULATION_H +/* end file simdjson/ppc64/bitmanipulation.h */ +/* including simdjson/ppc64/bitmask.h: #include "simdjson/ppc64/bitmask.h" */ +/* begin file simdjson/ppc64/bitmask.h */ +#ifndef SIMDJSON_PPC64_BITMASK_H +#define SIMDJSON_PPC64_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is +// encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + // You can use the version below, however gcc sometimes miscompiles + // vec_pmsum_be, it happens somewhere around between 8 and 9th version. + // The performance boost was not noticeable, falling back to a usual + // implementation. + // __vector unsigned long long all_ones = {~0ull, ~0ull}; + // __vector unsigned long long mask = {bitmask, 0}; + // // Clang and GCC return different values for pmsum for ull so cast it to one. + // // Generally it is not specified by ALTIVEC ISA what is returned by + // // vec_pmsum_be. + // #if defined(__LITTLE_ENDIAN__) + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[0]); + // #else + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[1]); + // #endif + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif +/* end file simdjson/ppc64/bitmask.h */ +/* including simdjson/ppc64/numberparsing_defs.h: #include "simdjson/ppc64/numberparsing_defs.h" */ +/* begin file simdjson/ppc64/numberparsing_defs.h */ +#ifndef SIMDJSON_PPC64_NUMBERPARSING_DEFS_H +#define SIMDJSON_PPC64_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +#if defined(__linux__) +#include +#elif defined(__FreeBSD__) +#include +#endif + +namespace simdjson { +namespace ppc64 { +namespace numberparsing { + +// we don't have appropriate instructions, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); +#ifdef __BIG_ENDIAN__ +#if defined(__linux__) + val = bswap_64(val); +#elif defined(__FreeBSD__) + val = bswap64(val); +#endif +#endif + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace ppc64 +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_PPC64_NUMBERPARSING_DEFS_H +/* end file simdjson/ppc64/numberparsing_defs.h */ +/* including simdjson/ppc64/simd.h: #include "simdjson/ppc64/simd.h" */ +/* begin file simdjson/ppc64/simd.h */ +#ifndef SIMDJSON_PPC64_SIMD_H +#define SIMDJSON_PPC64_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace ppc64 { +namespace { +namespace simd { + +using __m128i = __vector unsigned char; + +template struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i &() const { + return this->value; + } + simdjson_inline operator __m128i &() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { + return vec_or(this->value, (__m128i)other); + } + simdjson_inline Child operator&(const Child other) const { + return vec_and(this->value, (__m128i)other); + } + simdjson_inline Child operator^(const Child other) const { + return vec_xor(this->value, (__m128i)other); + } + simdjson_inline Child bit_andnot(const Child other) const { + return vec_andc(this->value, (__m128i)other); + } + simdjson_inline Child &operator|=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast | other; + return *this_cast; + } + simdjson_inline Child &operator&=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast & other; + return *this_cast; + } + simdjson_inline Child &operator^=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast ^ other; + return *this_cast; + } +}; + +template > +struct base8 : base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { + return (__m128i)vec_cmpeq(lhs.value, (__m128i)rhs); + } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(simd8 prev_chunk) const { + __m128i chunk = this->value; +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve(this->value); + prev_chunk = (__m128i)vec_reve((__m128i)prev_chunk); +#endif + chunk = (__m128i)vec_sld((__m128i)prev_chunk, (__m128i)chunk, 16 - N); +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve((__m128i)chunk); +#endif + return chunk; + } +}; + +// SIMD byte mask type (returned by things like eq and gt) +template <> struct simd8 : base8 { + static simdjson_inline simd8 splat(bool _value) { + return (__m128i)vec_splats((unsigned char)(-(!!_value))); + } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) + : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) + : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { + __vector unsigned long long result; + const __m128i perm_mask = {0x78, 0x70, 0x68, 0x60, 0x58, 0x50, 0x48, 0x40, + 0x38, 0x30, 0x28, 0x20, 0x18, 0x10, 0x08, 0x00}; + + result = ((__vector unsigned long long)vec_vbpermq((__m128i)this->value, + (__m128i)perm_mask)); +#ifdef __LITTLE_ENDIAN__ + return static_cast(result[1]); +#else + return static_cast(result[0]); +#endif + } + simdjson_inline bool any() const { + return !vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline simd8 operator~() const { + return this->value ^ (__m128i)splat(true); + } +}; + +template struct base8_numeric : base8 { + static simdjson_inline simd8 splat(T value) { + (void)value; + return (__m128i)vec_splats(value); + } + static simdjson_inline simd8 zero() { return splat(0); } + static simdjson_inline simd8 load(const T values[16]) { + return (__m128i)(vec_vsx_ld(0, reinterpret_cast(values))); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16(T v0, T v1, T v2, T v3, T v4, + T v5, T v6, T v7, T v8, T v9, + T v10, T v11, T v12, T v13, + T v14, T v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, + v14, v15); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) + : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { + vec_vsx_st(this->value, 0, reinterpret_cast<__m128i *>(dst)); + } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { + return (__m128i)((__m128i)this->value + (__m128i)other); + } + simdjson_inline simd8 operator-(const simd8 other) const { + return (__m128i)((__m128i)this->value - (__m128i)other); + } + simdjson_inline simd8 &operator+=(const simd8 other) { + *this = *this + other; + return *static_cast *>(this); + } + simdjson_inline simd8 &operator-=(const simd8 other) { + *this = *this - other; + return *static_cast *>(this); + } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior + // for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return (__m128i)vec_perm((__m128i)lookup_table, (__m128i)lookup_table, this->value); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted + // as a bitset). Passing a 0 value for mask would be equivalent to writing out + // every byte to output. Only the first 16 - count_ones(mask) bytes of the + // result are significant but 16 bytes get written. Design consideration: it + // seems like a function with the signature simd8 compress(uint32_t mask) + // would be sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L *output) const { + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + using internal::thintable_epi8; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. +#ifdef __LITTLE_ENDIAN__ + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask1], thintable_epi8[mask2]}; +#else + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask2], thintable_epi8[mask1]}; + shufmask = (__m128i)vec_reve((__m128i)shufmask); +#endif + // we increment by 0x08 the second half of the mask + shufmask = ((__m128i)shufmask) + + ((__m128i)(__vector int){0, 0, 0x08080808, 0x08080808}); + + // this is the version "nearly pruned" + __m128i pruned = vec_perm(this->value, this->value, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + vec_vsx_ld(0, reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = vec_perm(pruned, (__m128i)vec_splats(0), compactmask); + vec_vsx_st(answer, 0, reinterpret_cast<__m128i *>(output)); + } + + template + simdjson_inline simd8 + lookup_16(L replace0, L replace1, L replace2, L replace3, L replace4, + L replace5, L replace6, L replace7, L replace8, L replace9, + L replace10, L replace11, L replace12, L replace13, L replace14, + L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, replace4, replace5, replace6, + replace7, replace8, replace9, replace10, replace11, replace12, + replace13, replace14, replace15)); + } +}; + +// Signed bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8(int8_t v0, int8_t v1, int8_t v2, int8_t v3, + int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) + : simd8((__m128i)(__vector signed char){v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10, v11, v12, v13, v14, + v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, + int8_t v6, int8_t v7, int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Order-sensitive comparisons + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return (__m128i)vec_cmpgt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return (__m128i)vec_cmplt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } +}; + +// Unsigned bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline + simd8(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, + uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, uint8_t v10, + uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15) + : simd8((__m128i){v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, + uint8_t v5, uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, + uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, + uint8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Saturated math + simdjson_inline simd8 + saturating_add(const simd8 other) const { + return (__m128i)vec_adds(this->value, (__m128i)other); + } + simdjson_inline simd8 + saturating_sub(const simd8 other) const { + return (__m128i)vec_subs(this->value, (__m128i)other); + } + + // Order-specific operations + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max(this->value, (__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min(this->value, (__m128i)other); + } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + gt_bits(const simd8 other) const { + return this->saturating_sub(other); + } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + lt_bits(const simd8 other) const { + return other.saturating_sub(*this); + } + simdjson_inline simd8 + operator<=(const simd8 other) const { + return other.max_val(*this) == other; + } + simdjson_inline simd8 + operator>=(const simd8 other) const { + return other.min_val(*this) == other; + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { + return (__m128i)vec_cmpeq(this->value, (__m128i)vec_splats(uint8_t(0))); + } + simdjson_inline simd8 bits_not_set(simd8 bits) const { + return (*this & bits).bits_not_set(); + } + simdjson_inline simd8 any_bits_set() const { + return ~this->bits_not_set(); + } + simdjson_inline simd8 any_bits_set(simd8 bits) const { + return ~this->bits_not_set(bits); + } + simdjson_inline bool bits_not_set_anywhere() const { + return vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere() const { + return !bits_not_set_anywhere(); + } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { + return vec_all_eq(vec_and(this->value, (__m128i)bits), + (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { + return !bits_not_set_anywhere(bits); + } + template simdjson_inline simd8 shr() const { + return simd8( + (__m128i)vec_sr(this->value, (__m128i)vec_splat_u8(N))); + } + template simdjson_inline simd8 shl() const { + return simd8( + (__m128i)vec_sl(this->value, (__m128i)vec_splat_u8(N))); + } +}; + +template struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, + "PPC64 kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64 &o) = delete; // no copy allowed + simd8x64 & + operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, + const simd8 chunk2, const simd8 chunk3) + : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) + : chunks{simd8::load(ptr), simd8::load(ptr + 16), + simd8::load(ptr + 32), simd8::load(ptr + 48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr + sizeof(simd8) * 0); + this->chunks[1].store(ptr + sizeof(simd8) * 1); + this->chunks[2].store(ptr + sizeof(simd8) * 2); + this->chunks[3].store(ptr + sizeof(simd8) * 3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | + (this->chunks[2] | this->chunks[3]); + } + + simdjson_inline uint64_t compress(uint64_t mask, T *output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), + output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), + output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), + output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r1 = this->chunks[1].to_bitmask(); + uint64_t r2 = this->chunks[2].to_bitmask(); + uint64_t r3 = this->chunks[3].to_bitmask(); + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] == mask, this->chunks[1] == mask, + this->chunks[2] == mask, this->chunks[3] == mask) + .to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64(this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3]) + .to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] <= mask, this->chunks[1] <= mask, + this->chunks[2] <= mask, this->chunks[3] <= mask) + .to_bitmask(); + } +}; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_SIMD_INPUT_H +/* end file simdjson/ppc64/simd.h */ +/* including simdjson/ppc64/stringparsing_defs.h: #include "simdjson/ppc64/stringparsing_defs.h" */ +/* begin file simdjson/ppc64/stringparsing_defs.h */ +#ifndef SIMDJSON_PPC64_STRINGPARSING_DEFS_H +#define SIMDJSON_PPC64_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/simd.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote + copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { + return ((bs_bits - 1) & quote_bits) != 0; + } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { + return trailing_zeroes(quote_bits); + } + simdjson_inline int backslash_index() { + return trailing_zeroes(bs_bits); + } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote +backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), + "backslash and quote finder must process fewer than " + "SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on + // PPC; therefore, we smash them together into a 64-byte mask and get the + // bitmask from there. + uint64_t bs_and_quote = + simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_STRINGPARSING_DEFS_H +/* end file simdjson/ppc64/stringparsing_defs.h */ + +#define SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT 1 +/* end file simdjson/ppc64/begin.h */ +/* including simdjson/generic/amalgamated.h for ppc64: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for ppc64 */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for ppc64: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { + +struct open_container; +class dom_parser_implementation; + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for ppc64 */ +/* including simdjson/generic/jsoncharutils.h for ppc64: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for ppc64 */ +/* including simdjson/generic/atomparsing.h for ppc64: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace ppc64 { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for ppc64 */ +/* including simdjson/generic/dom_parser_implementation.h for ppc64: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { +namespace ppc64 { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for ppc64 */ +/* including simdjson/generic/implementation_simdjson_result_base.h for ppc64: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for ppc64 */ +/* including simdjson/generic/numberparsing.h for ppc64: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace ppc64 { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +} // namespace numberparsing + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for ppc64 */ + +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for ppc64: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for ppc64 */ +/* end file simdjson/generic/amalgamated.h for ppc64 */ +/* including simdjson/ppc64/end.h: #include "simdjson/ppc64/end.h" */ +/* begin file simdjson/ppc64/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#undef SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT +/* undefining SIMDJSON_IMPLEMENTATION from "ppc64" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/ppc64/end.h */ + +#endif // SIMDJSON_PPC64_H +/* end file simdjson/ppc64.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(westmere) +/* including simdjson/westmere.h: #include "simdjson/westmere.h" */ +/* begin file simdjson/westmere.h */ +#ifndef SIMDJSON_WESTMERE_H +#define SIMDJSON_WESTMERE_H + +/* including simdjson/westmere/begin.h: #include "simdjson/westmere/begin.h" */ +/* begin file simdjson/westmere/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "westmere" */ +#define SIMDJSON_IMPLEMENTATION westmere +/* including simdjson/westmere/base.h: #include "simdjson/westmere/base.h" */ +/* begin file simdjson/westmere/base.h */ +#ifndef SIMDJSON_WESTMERE_BASE_H +#define SIMDJSON_WESTMERE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +/** + * Implementation for Westmere (Intel SSE4.2). + */ +namespace westmere { + +class implementation; + +namespace { +namespace simd { + +template struct simd8; +template struct simd8x64; + +} // namespace simd +} // unnamed namespace + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BASE_H +/* end file simdjson/westmere/base.h */ +/* including simdjson/westmere/intrinsics.h: #include "simdjson/westmere/intrinsics.h" */ +/* begin file simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 +#endif + +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); + +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file simdjson/westmere/intrinsics.h */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +SIMDJSON_TARGET_REGION("sse4.2,pclmul,popcnt") +#endif + +/* including simdjson/westmere/bitmanipulation.h: #include "simdjson/westmere/bitmanipulation.h" */ +/* begin file simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file simdjson/westmere/bitmanipulation.h */ +/* including simdjson/westmere/bitmask.h: #include "simdjson/westmere/bitmask.h" */ +/* begin file simdjson/westmere/bitmask.h */ +#ifndef SIMDJSON_WESTMERE_BITMASK_H +#define SIMDJSON_WESTMERE_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processing supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BITMASK_H +/* end file simdjson/westmere/bitmask.h */ +/* including simdjson/westmere/numberparsing_defs.h: #include "simdjson/westmere/numberparsing_defs.h" */ +/* begin file simdjson/westmere/numberparsing_defs.h */ +#ifndef SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H +#define SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H + +/* including simdjson/westmere/base.h: #include "simdjson/westmere/base.h" */ +/* begin file simdjson/westmere/base.h */ +#ifndef SIMDJSON_WESTMERE_BASE_H +#define SIMDJSON_WESTMERE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +/** + * Implementation for Westmere (Intel SSE4.2). + */ +namespace westmere { + +class implementation; + +namespace { +namespace simd { + +template struct simd8; +template struct simd8x64; + +} // namespace simd +} // unnamed namespace + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BASE_H +/* end file simdjson/westmere/base.h */ +/* including simdjson/westmere/intrinsics.h: #include "simdjson/westmere/intrinsics.h" */ +/* begin file simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 +#endif + +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); + +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file simdjson/westmere/intrinsics.h */ + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace westmere +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H +/* end file simdjson/westmere/numberparsing_defs.h */ +/* including simdjson/westmere/simd.h: #include "simdjson/westmere/simd.h" */ +/* begin file simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { +namespace simd { + + template + struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file simdjson/westmere/simd.h */ +/* including simdjson/westmere/stringparsing_defs.h: #include "simdjson/westmere/stringparsing_defs.h" */ +/* begin file simdjson/westmere/stringparsing_defs.h */ +#ifndef SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H +#define SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H + +/* including simdjson/westmere/bitmanipulation.h: #include "simdjson/westmere/bitmanipulation.h" */ +/* begin file simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file simdjson/westmere/bitmanipulation.h */ +/* including simdjson/westmere/simd.h: #include "simdjson/westmere/simd.h" */ +/* begin file simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { +namespace simd { + + template + struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file simdjson/westmere/simd.h */ + +namespace simdjson { +namespace westmere { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + 16); + v0.store(dst); + v1.store(dst + 16); + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H +/* end file simdjson/westmere/stringparsing_defs.h */ +/* end file simdjson/westmere/begin.h */ +/* including simdjson/generic/amalgamated.h for westmere: #include "simdjson/generic/amalgamated.h" */ +/* begin file simdjson/generic/amalgamated.h for westmere */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_DEPENDENCIES_H) +#error simdjson/generic/dependencies.h must be included before simdjson/generic/amalgamated.h! +#endif + +/* including simdjson/generic/base.h for westmere: #include "simdjson/generic/base.h" */ +/* begin file simdjson/generic/base.h for westmere */ +#ifndef SIMDJSON_GENERIC_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): // If we haven't got an implementation yet, we're in the editor, editing a generic file! Just */ +/* amalgamation skipped (editor-only): // use the most advanced one we can so the most possible stuff can be tested. */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation_detection.h" */ +/* amalgamation skipped (editor-only): #if SIMDJSON_IMPLEMENTATION_ICELAKE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_HASWELL */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_WESTMERE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_ARM64 */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_PPC64 */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/begin.h" */ +/* amalgamation skipped (editor-only): #elif SIMDJSON_IMPLEMENTATION_FALLBACK */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/begin.h" */ +/* amalgamation skipped (editor-only): #else */ +/* amalgamation skipped (editor-only): #error "All possible implementations (including fallback) have been disabled! simdjson will not run." */ +/* amalgamation skipped (editor-only): #endif */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_IMPLEMENTATION */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { + +struct open_container; +class dom_parser_implementation; + +/** + * The type of a JSON number + */ +enum class number_type { + floating_point_number=1, /// a binary64 number + signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + unsigned_integer /// a positive integer larger or equal to 1<<63 +}; + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_BASE_H +/* end file simdjson/generic/base.h for westmere */ +/* including simdjson/generic/jsoncharutils.h for westmere: #include "simdjson/generic/jsoncharutils.h" */ +/* begin file simdjson/generic/jsoncharutils.h for westmere */ +#ifndef SIMDJSON_GENERIC_JSONCHARUTILS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_JSONCHARUTILS_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/jsoncharutils_tables.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { +namespace jsoncharutils { + +// return non-zero if not a structural or whitespace char +// zero otherwise +simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace_negated[c]; +} + +simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { + return internal::structural_or_whitespace[c]; +} + +// returns a value with the high 16 bits set if not valid +// otherwise returns the conversion of the 4 hex digits at src into the bottom +// 16 bits of the 32-bit return register +// +// see +// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ +static inline uint32_t hex_to_u32_nocheck( + const uint8_t *src) { // strictly speaking, static inline is a C-ism + uint32_t v1 = internal::digit_to_val32[630 + src[0]]; + uint32_t v2 = internal::digit_to_val32[420 + src[1]]; + uint32_t v3 = internal::digit_to_val32[210 + src[2]]; + uint32_t v4 = internal::digit_to_val32[0 + src[3]]; + return v1 | v2 | v3 | v4; +} + +// given a code point cp, writes to c +// the utf-8 code, outputting the length in +// bytes, if the length is zero, the code point +// is invalid +// +// This can possibly be made faster using pdep +// and clz and table lookups, but JSON documents +// have few escaped code points, and the following +// function looks cheap. +// +// Note: we assume that surrogates are treated separately +// +simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { + if (cp <= 0x7F) { + c[0] = uint8_t(cp); + return 1; // ascii + } + if (cp <= 0x7FF) { + c[0] = uint8_t((cp >> 6) + 192); + c[1] = uint8_t((cp & 63) + 128); + return 2; // universal plane + // Surrogates are treated elsewhere... + //} //else if (0xd800 <= cp && cp <= 0xdfff) { + // return 0; // surrogates // could put assert here + } else if (cp <= 0xFFFF) { + c[0] = uint8_t((cp >> 12) + 224); + c[1] = uint8_t(((cp >> 6) & 63) + 128); + c[2] = uint8_t((cp & 63) + 128); + return 3; + } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this + // is not needed + c[0] = uint8_t((cp >> 18) + 240); + c[1] = uint8_t(((cp >> 12) & 63) + 128); + c[2] = uint8_t(((cp >> 6) & 63) + 128); + c[3] = uint8_t((cp & 63) + 128); + return 4; + } + // will return 0 when the code point was too large. + return 0; // bad r +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +} // namespace jsoncharutils +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_JSONCHARUTILS_H +/* end file simdjson/generic/jsoncharutils.h for westmere */ +/* including simdjson/generic/atomparsing.h for westmere: #include "simdjson/generic/atomparsing.h" */ +/* begin file simdjson/generic/atomparsing.h for westmere */ +#ifndef SIMDJSON_GENERIC_ATOMPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ATOMPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace westmere { +namespace { +/// @private +namespace atomparsing { + +// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. +// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot +// be certain that the character pointer will be properly aligned. +// You might think that using memcpy makes this function expensive, but you'd be wrong. +// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); +// to the compile-time constant 1936482662. +simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } + + +// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. +// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. +simdjson_warn_unused +simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { + uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) + static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); + std::memcpy(&srcval, src, sizeof(uint32_t)); + return srcval ^ string_to_uint32(atom); +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src) { + return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_true_atom(src); } + else if (len == 4) { return !str4ncmp(src, "true"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src) { + return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { + if (len > 5) { return is_valid_false_atom(src); } + else if (len == 5) { return !str4ncmp(src+1, "alse"); } + else { return false; } +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src) { + return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +} + +simdjson_warn_unused +simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { + if (len > 4) { return is_valid_null_atom(src); } + else if (len == 4) { return !str4ncmp(src, "null"); } + else { return false; } +} + +} // namespace atomparsing +} // unnamed namespace +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ATOMPARSING_H +/* end file simdjson/generic/atomparsing.h for westmere */ +/* including simdjson/generic/dom_parser_implementation.h for westmere: #include "simdjson/generic/dom_parser_implementation.h" */ +/* begin file simdjson/generic/dom_parser_implementation.h for westmere */ +#ifndef SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { + +// expectation: sizeof(open_container) = 64/8. +struct open_container { + uint32_t tape_index; // where, on the tape, does the scope ([,{) begins + uint32_t count; // how many elements in the scope +}; // struct open_container + +static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + +class dom_parser_implementation final : public internal::dom_parser_implementation { +public: + /** Tape location of each open { or [ */ + std::unique_ptr open_containers{}; + /** Whether each open container is a [ or { */ + std::unique_ptr is_array{}; + /** Buffer passed to stage 1 */ + const uint8_t *buf{}; + /** Length passed to stage 1 */ + size_t len{0}; + /** Document passed to stage 2 */ + dom::document *doc{}; + + inline dom_parser_implementation() noexcept; + inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; + inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; + dom_parser_implementation(const dom_parser_implementation &) = delete; + dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + + simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; + simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; + simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; + simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; + simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; + inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; + inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; +private: + simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + +}; + +} // namespace westmere +} // namespace simdjson + +namespace simdjson { +namespace westmere { + +inline dom_parser_implementation::dom_parser_implementation() noexcept = default; +inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; +inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + +// Leaving these here so they can be inlined if so desired +inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { + if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } + // Stage 1 index output + size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; + structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); + if (!structural_indexes) { _capacity = 0; return MEMALLOC; } + structural_indexes[0] = 0; + n_structural_indexes = 0; + + _capacity = capacity; + return SUCCESS; +} + +inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { + // Stage 2 stacks + open_containers.reset(new (std::nothrow) open_container[max_depth]); + is_array.reset(new (std::nothrow) bool[max_depth]); + if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } + + _max_depth = max_depth; + return SUCCESS; +} + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_DOM_PARSER_IMPLEMENTATION_H +/* end file simdjson/generic/dom_parser_implementation.h for westmere */ +/* including simdjson/generic/implementation_simdjson_result_base.h for westmere: #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base.h for westmere */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { + +// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair +// so we can avoid inlining errors +// TODO reconcile these! +/** + * The result of a simdjson operation that could fail. + * + * Gives the option of reading error codes, or throwing an exception by casting to the desired result. + * + * This is a base class for implementations that want to add functions to the result type for + * chaining. + * + * Override like: + * + * struct simdjson_result : public internal::implementation_simdjson_result_base { + * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} + * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} + * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} + * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} + * // Your extra methods here + * } + * + * Then any method returning simdjson_result will be chainable with your methods. + */ +template +struct implementation_simdjson_result_base { + + /** + * Create a new empty result with error = UNINITIALIZED. + */ + simdjson_inline implementation_simdjson_result_base() noexcept = default; + + /** + * Create a new error result. + */ + simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + + /** + * Create a new successful result. + */ + simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + + /** + * Create a new result with both things (use if you don't want to branch when creating the result). + */ + simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; + + /** + * Move the value and the error to the provided variables. + * + * @param value The variable to assign the value to. May not be set if there is an error. + * @param error The variable to assign the error to. Set to SUCCESS if there is no error. + */ + simdjson_inline void tie(T &value, error_code &error) && noexcept; + + /** + * Move the value to the provided variable. + * + * @param value The variable to assign the value to. May not be set if there is an error. + */ + simdjson_inline error_code get(T &value) && noexcept; + + /** + * The error. + */ + simdjson_inline error_code error() const noexcept; + +#if SIMDJSON_EXCEPTIONS + + /** + * Get the result value. + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T& value() & noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& value() && noexcept(false); + + /** + * Take the result value (move it). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline T&& take_value() && noexcept(false); + + /** + * Cast to the value (will throw on error). + * + * @throw simdjson_error if there was an error. + */ + simdjson_inline operator T&&() && noexcept(false); + + +#endif // SIMDJSON_EXCEPTIONS + + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline const T& value_unsafe() const& noexcept; + /** + * Get the result value. This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T& value_unsafe() & noexcept; + /** + * Take the result value (move it). This function is safe if and only + * the error() method returns a value that evaluates to false. + */ + simdjson_inline T&& value_unsafe() && noexcept; +protected: + /** users should never directly access first and second. **/ + T first{}; /** Users should never directly access 'first'. **/ + error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ +}; // struct implementation_simdjson_result_base + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_H +/* end file simdjson/generic/implementation_simdjson_result_base.h for westmere */ +/* including simdjson/generic/numberparsing.h for westmere: #include "simdjson/generic/numberparsing.h" */ +/* begin file simdjson/generic/numberparsing.h for westmere */ +#ifndef SIMDJSON_GENERIC_NUMBERPARSING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_NUMBERPARSING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/jsoncharutils.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include +#include + +namespace simdjson { +namespace westmere { +namespace numberparsing { + +#ifdef JSON_TEST_NUMBERS +#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) +#else +#define INVALID_NUMBER(SRC) (NUMBER_ERROR) +#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) +#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) +#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) +#endif + +namespace { + +// Convert a mantissa, an exponent and a sign bit into an ieee64 double. +// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). +// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. +simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { + double d; + mantissa &= ~(1ULL << 52); + mantissa |= real_exponent << 52; + mantissa |= ((static_cast(negative)) << 63); + std::memcpy(&d, &mantissa, sizeof(d)); + return d; +} + +// Attempts to compute i * 10^(power) exactly; and if "negative" is +// true, negate the result. +// This function will only work in some cases, when it does not work, success is +// set to false. This should work *most of the time* (like 99% of the time). +// We assume that power is in the [smallest_power, +// largest_power] interval: the caller is responsible for this check. +simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { + // we start with a fast path + // It was described in + // Clinger WD. How to read floating point numbers accurately. + // ACM SIGPLAN Notices. 1990 +#ifndef FLT_EVAL_METHOD +#error "FLT_EVAL_METHOD should be defined, please include cfloat." +#endif +#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) + // We cannot be certain that x/y is rounded to nearest. + if (0 <= power && power <= 22 && i <= 9007199254740991) +#else + if (-22 <= power && power <= 22 && i <= 9007199254740991) +#endif + { + // convert the integer into a double. This is lossless since + // 0 <= i <= 2^53 - 1. + d = double(i); + // + // The general idea is as follows. + // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then + // 1) Both s and p can be represented exactly as 64-bit floating-point + // values + // (binary64). + // 2) Because s and p can be represented exactly as floating-point values, + // then s * p + // and s / p will produce correctly rounded values. + // + if (power < 0) { + d = d / simdjson::internal::power_of_ten[-power]; + } else { + d = d * simdjson::internal::power_of_ten[power]; + } + if (negative) { + d = -d; + } + return true; + } + // When 22 < power && power < 22 + 16, we could + // hope for another, secondary fast path. It was + // described by David M. Gay in "Correctly rounded + // binary-decimal and decimal-binary conversions." (1990) + // If you need to compute i * 10^(22 + x) for x < 16, + // first compute i * 10^x, if you know that result is exact + // (e.g., when i * 10^x < 2^53), + // then you can still proceed and do (i * 10^x) * 10^22. + // Is this worth your time? + // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) + // for this second fast path to work. + // If you you have 22 < power *and* power < 22 + 16, and then you + // optimistically compute "i * 10^(x-22)", there is still a chance that you + // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of + // this optimization maybe less common than we would like. Source: + // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ + // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + + // The fast path has now failed, so we are failing back on the slower path. + + // In the slow path, we need to adjust i so that it is > 1<<63 which is always + // possible, except if i == 0, so we handle i == 0 separately. + if(i == 0) { + d = negative ? -0.0 : 0.0; + return true; + } + + + // The exponent is 1024 + 63 + power + // + floor(log(5**power)/log(2)). + // The 1024 comes from the ieee64 standard. + // The 63 comes from the fact that we use a 64-bit word. + // + // Computing floor(log(5**power)/log(2)) could be + // slow. Instead we use a fast function. + // + // For power in (-400,350), we have that + // (((152170 + 65536) * power ) >> 16); + // is equal to + // floor(log(5**power)/log(2)) + power when power >= 0 + // and it is equal to + // ceil(log(5**-power)/log(2)) + power when power < 0 + // + // The 65536 is (1<<16) and corresponds to + // (65536 * power) >> 16 ---> power + // + // ((152170 * power ) >> 16) is equal to + // floor(log(5**power)/log(2)) + // + // Note that this is not magic: 152170/(1<<16) is + // approximatively equal to log(5)/log(2). + // The 1<<16 value is a power of two; we could use a + // larger power of 2 if we wanted to. + // + int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; + + + // We want the most significant bit of i to be 1. Shift if needed. + int lz = leading_zeroes(i); + i <<= lz; + + + // We are going to need to do some 64-bit arithmetic to get a precise product. + // We use a table lookup approach. + // It is safe because + // power >= smallest_power + // and power <= largest_power + // We recover the mantissa of the power, it has a leading 1. It is always + // rounded down. + // + // We want the most significant 64 bits of the product. We know + // this will be non-zero because the most significant bit of i is + // 1. + const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); + // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 firstproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index]); + // Both i and power_of_five_128[index] have their most significant bit set to 1 which + // implies that the either the most or the second most significant bit of the product + // is 1. We pack values in this manner for efficiency reasons: it maximizes the use + // we make of the product. It also makes it easy to reason about the product: there + // is 0 or 1 leading zero in the product. + + // Unless the least significant 9 bits of the high (64-bit) part of the full + // product are all 1s, then we know that the most significant 55 bits are + // exact and no further work is needed. Having 55 bits is necessary because + // we need 53 bits for the mantissa but we have to have one rounding bit and + // we can waste a bit if the most significant bit of the product is zero. + if((firstproduct.high & 0x1FF) == 0x1FF) { + // We want to compute i * 5^q, but only care about the top 55 bits at most. + // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing + // the full computation is wasteful. So we do what is called a "truncated + // multiplication". + // We take the most significant 64-bits, and we put them in + // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q + // to the desired approximation using one multiplication. Sometimes it does not suffice. + // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and + // then we get a better approximation to i * 5^q. In very rare cases, even that + // will not suffice, though it is seemingly very hard to find such a scenario. + // + // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat + // more complicated. + // + // There is an extra layer of complexity in that we need more than 55 bits of + // accuracy in the round-to-even scenario. + // + // The full_multiplication function computes the 128-bit product of two 64-bit words + // with a returned value of type value128 with a "low component" corresponding to the + // 64-bit least significant bits of the product and with a "high component" corresponding + // to the 64-bit most significant bits of the product. + simdjson::internal::value128 secondproduct = full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); + firstproduct.low += secondproduct.high; + if(secondproduct.high > firstproduct.low) { firstproduct.high++; } + // At this point, we might need to add at most one to firstproduct, but this + // can only change the value of firstproduct.high if firstproduct.low is maximal. + if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { + // This is very unlikely, but if so, we need to do much more work! + return false; + } + } + uint64_t lower = firstproduct.low; + uint64_t upper = firstproduct.high; + // The final mantissa should be 53 bits with a leading 1. + // We shift it so that it occupies 54 bits with a leading 1. + /////// + uint64_t upperbit = upper >> 63; + uint64_t mantissa = upper >> (upperbit + 9); + lz += int(1 ^ upperbit); + + // Here we have mantissa < (1<<54). + int64_t real_exponent = exponent - lz; + if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? + // Here have that real_exponent <= 0 so -real_exponent >= 0 + if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. + d = negative ? -0.0 : 0.0; + return true; + } + // next line is safe because -real_exponent + 1 < 0 + mantissa >>= -real_exponent + 1; + // Thankfully, we can't have both "round-to-even" and subnormals because + // "round-to-even" only occurs for powers close to 0. + mantissa += (mantissa & 1); // round up + mantissa >>= 1; + // There is a weird scenario where we don't have a subnormal but just. + // Suppose we start with 2.2250738585072013e-308, we end up + // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal + // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round + // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer + // subnormal, but we can only know this after rounding. + // So we only declare a subnormal if we are smaller than the threshold. + real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; + d = to_double(mantissa, real_exponent, negative); + return true; + } + // We have to round to even. The "to even" part + // is only a problem when we are right in between two floats + // which we guard against. + // If we have lots of trailing zeros, we may fall right between two + // floating-point values. + // + // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] + // times a power of two. That is, it is right between a number with binary significand + // m and another number with binary significand m+1; and it must be the case + // that it cannot be represented by a float itself. + // + // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. + // Recall that 10^q = 5^q * 2^q. + // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that + // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. + // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so + // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have + // 2^{53} x 5^{-q} < 2^{64}. + // Hence we have 5^{-q} < 2^{11}$ or q>= -4. + // + // We require lower <= 1 and not lower == 0 because we could not prove that + // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. + if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { + if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { + mantissa &= ~1; // flip it so that we do not round up + } + } + + mantissa += mantissa & 1; + mantissa >>= 1; + + // Here we have mantissa < (1<<53), unless there was an overflow + if (mantissa >= (1ULL << 53)) { + ////////// + // This will happen when parsing values such as 7.2057594037927933e+16 + //////// + mantissa = (1ULL << 52); + real_exponent++; + } + mantissa &= ~(1ULL << 52); + // we have to check that real_exponent is in range, otherwise we bail out + if (simdjson_unlikely(real_exponent > 2046)) { + // We have an infinite value!!! We could actually throw an error here if we could. + return false; + } + d = to_double(mantissa, real_exponent, negative); + return true; +} + +// We call a fallback floating-point parser that might be slow. Note +// it will accept JSON numbers, but the JSON spec. is more restrictive so +// before you call parse_float_fallback, you need to have validated the input +// string with the JSON grammar. +// It will return an error (false) if the parsed number is infinite. +// The string parsing itself always succeeds. We know that there is at least +// one digit. +static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { + *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); + // We do not accept infinite values. + + // Detecting finite values in a portable manner is ridiculously hard, ideally + // we would want to do: + // return !std::isfinite(*outDouble); + // but that mysteriously fails under legacy/old libc++ libraries, see + // https://github.com/simdjson/simdjson/issues/1286 + // + // Therefore, fall back to this solution (the extra parens are there + // to handle that max may be a macro on windows). + return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +} + +// check quickly whether the next 8 chars are made of digits +// at a glance, it looks better than Mula's +// http://0x80.pl/articles/swar-digits-validate.html +simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { + uint64_t val; + // this can read up to 7 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); + std::memcpy(&val, chars, 8); + // a branchy method might be faster: + // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) + // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == + // 0x3030303030303030); + return (((val & 0xF0F0F0F0F0F0F0F0) | + (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == + 0x3333333333333333); +} + +template +SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later +simdjson_inline bool parse_digit(const uint8_t c, I &i) { + const uint8_t digit = static_cast(c - '0'); + if (digit > 9) { + return false; + } + // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication + i = 10 * i + digit; // might overflow, we will handle the overflow later + return true; +} + +simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { + // we continue with the fiction that we have an integer. If the + // floating point number is representable as x * 10^z for some integer + // z that fits in 53 bits, then we will be able to convert back the + // the integer into a float in a lossless manner. + const uint8_t *const first_after_period = p; + +#ifdef SIMDJSON_SWAR_NUMBER_PARSING +#if SIMDJSON_SWAR_NUMBER_PARSING + // this helps if we have lots of decimals! + // this turns out to be frequent enough. + if (is_made_of_eight_digits_fast(p)) { + i = i * 100000000 + parse_eight_digits_unrolled(p); + p += 8; + } +#endif // SIMDJSON_SWAR_NUMBER_PARSING +#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING + // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) + if (parse_digit(*p, i)) { ++p; } + while (parse_digit(*p, i)) { p++; } + exponent = first_after_period - p; + // Decimal without digits (123.) is illegal + if (exponent == 0) { + return INVALID_NUMBER(src); + } + return SUCCESS; +} + +simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { + // Exp Sign: -123.456e[-]78 + bool neg_exp = ('-' == *p); + if (neg_exp || '+' == *p) { p++; } // Skip + as well + + // Exponent: -123.456e-[78] + auto start_exp = p; + int64_t exp_number = 0; + while (parse_digit(*p, exp_number)) { ++p; } + // It is possible for parse_digit to overflow. + // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. + // Thus we *must* check for possible overflow before we negate exp_number. + + // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into + // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may + // not oblige and may, in fact, generate two distinct paths in any case. It might be + // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off + // instructions for a simdjson_likely branch, an unconclusive gain. + + // If there were no digits, it's an error. + if (simdjson_unlikely(p == start_exp)) { + return INVALID_NUMBER(src); + } + // We have a valid positive exponent in exp_number at this point, except that + // it may have overflowed. + + // If there were more than 18 digits, we may have overflowed the integer. We have to do + // something!!!! + if (simdjson_unlikely(p > start_exp+18)) { + // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow + while (*start_exp == '0') { start_exp++; } + // 19 digits could overflow int64_t and is kind of absurd anyway. We don't + // support exponents smaller than -999,999,999,999,999,999 and bigger + // than 999,999,999,999,999,999. + // We can truncate. + // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before + // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could + // truncate at 324. + // Note that there is no reason to fail per se at this point in time. + // E.g., 0e999999999999999999999 is a fine number. + if (p > start_exp+18) { exp_number = 999999999999999999; } + } + // At this point, we know that exp_number is a sane, positive, signed integer. + // It is <= 999,999,999,999,999,999. As long as 'exponent' is in + // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' + // is bounded in magnitude by the size of the JSON input, we are fine in this universe. + // To sum it up: the next line should never overflow. + exponent += (neg_exp ? -exp_number : exp_number); + return SUCCESS; +} + +simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { + // It is possible that the integer had an overflow. + // We have to handle the case where we have 0.0000somenumber. + const uint8_t *start = start_digits; + while ((*start == '0') || (*start == '.')) { ++start; } + // we over-decrement by one when there is a '.' + return digit_count - size_t(start - start_digits); +} + +} // unnamed namespace + +/** @private */ +template +error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { + double d; + if (parse_float_fallback(src, &d)) { + writer.append_double(d); + return SUCCESS; + } + return INVALID_NUMBER(src); +} + +/** @private */ +template +simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { + // If we frequently had to deal with long strings of digits, + // we could extend our code by using a 128-bit integer instead + // of a 64-bit integer. However, this is uncommon in practice. + // + // 9999999999999999999 < 2**64 so we can accommodate 19 digits. + // If we have a decimal separator, then digit_count - 1 is the number of digits, but we + // may not have a decimal separator! + if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { + // Ok, chances are good that we had an overflow! + // this is almost never going to get called!!! + // we start anew, going slowly!!! + // This will happen in the following examples: + // 10000000000000000000000000000000000000000000e+308 + // 3.1415926535897932384626433832795028841971693993751 + // + // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens + // because slow_float_parsing is a non-inlined function. If we passed our writer reference to + // it, it would force it to be stored in memory, preventing the compiler from picking it apart + // and putting into registers. i.e. if we pass it as reference, it gets slow. + // This is what forces the skip_double, as well. + error_code error = slow_float_parsing(src, writer); + writer.skip_double(); + return error; + } + // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other + // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 + // To future reader: we'd love if someone found a better way, or at least could explain this result! + if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { + // + // Important: smallest_power is such that it leads to a zero value. + // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero + // so something x 10^-343 goes to zero, but not so with something x 10^-342. + static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); + // + if((exponent < simdjson::internal::smallest_power) || (i == 0)) { + // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero + WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); + return SUCCESS; + } else { // (exponent > largest_power) and (i != 0) + // We have, for sure, an infinite value and simdjson refuses to parse infinite values. + return INVALID_NUMBER(src); + } + } + double d; + if (!compute_float_64(exponent, i, negative, d)) { + // we are almost never going to get here. + if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } + } + WRITE_DOUBLE(d, src, writer); + return SUCCESS; +} + +// for performance analysis, it is sometimes useful to skip parsing +#ifdef SIMDJSON_SKIPNUMBERPARSING + +template +simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { + writer.append_s64(0); // always write zero + return SUCCESS; // always succeeds +} + +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +#else + +// parse the number at src +// define JSON_TEST_NUMBERS for unit testing +// +// It is assumed that the number is followed by a structural ({,},],[) character +// or a white space character. If that is not the case (e.g., when the JSON +// document is made of a single number), then it is necessary to copy the +// content and append a space before calling this function. +// +// Our objective is accurate parsing (ULP of 0) at high speed. +template +simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { + + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } + + // + // Handle floats if there is a . or e (or both) + // + int64_t exponent = 0; + bool is_float = false; + if ('.' == *p) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); + digit_count = int(p - start_digits); // used later to guard against overflows + } + if (('e' == *p) || ('E' == *p)) { + is_float = true; + ++p; + SIMDJSON_TRY( parse_exponent(src, p, exponent) ); + } + if (is_float) { + const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); + SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); + if (dirty_end) { return INVALID_NUMBER(src); } + return SUCCESS; + } + + // The longest negative 64-bit number is 19 digits. + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + size_t longest_digit_count = negative ? 19 : 20; + if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } + if (digit_count == longest_digit_count) { + if (negative) { + // Anything negative above INT64_MAX+1 is invalid + if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } + WRITE_INTEGER(~i+1, src, writer); + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } + } + + // Write unsigned if it doesn't fit in a signed integer. + if (i > uint64_t(INT64_MAX)) { + WRITE_UNSIGNED(i, src, writer); + } else { + WRITE_INTEGER(negative ? (~i+1) : i, src, writer); + } + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } + return SUCCESS; +} + +// Inlineable functions +namespace { + +// This table can be used to characterize the final character of an integer +// string. For JSON structural character and allowable white space characters, +// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise +// we return NUMBER_ERROR. +// Optimization note: we could easily reduce the size of the table by half (to 128) +// at the cost of an extra branch. +// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): +static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); +static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + +const uint8_t integer_string_finisher[256] = { + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, + SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, + NUMBER_ERROR}; + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + + +// Parse any number from 0 to 18,446,744,073,709,551,615 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { + const uint8_t *p = src; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from 0 to 18,446,744,073,709,551,615 +simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { + const uint8_t *p = src + 1; + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // The longest positive 64-bit number is 20 digits. + // We do it this way so we don't trigger this branch unless we must. + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > 20)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if (*p != '"') { return NUMBER_ERROR; } + + if (digit_count == 20) { + // Positive overflow check: + // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the + // biggest uint64_t. + // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. + // If we got here, it's a 20 digit number starting with the digit "1". + // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller + // than 1,553,255,926,290,448,384. + // - That is smaller than the smallest possible 20-digit number the user could write: + // 10,000,000,000,000,000,000. + // - Therefore, if the number is positive and lower than that, it's overflow. + // - The value we are looking at is less than or equal to INT64_MAX. + // + // Note: we use src[1] and not src[0] because src[0] is the quote character in this + // instance. + if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } + } + + return i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while (parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { + // + // Check for minus sign + // + if(src == src_end) { return NUMBER_ERROR; } + bool negative = (*src == '-'); + const uint8_t *p = src + uint8_t(negative); + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = p; + uint64_t i = 0; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(p - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*p)) { + // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 +simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare + const uint8_t *const start_digits = src; + uint64_t i = 0; + while (parse_digit(*src, i)) { src++; } + + // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. + // Optimization note: size_t is expected to be unsigned. + size_t digit_count = size_t(src - start_digits); + // We go from + // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 + // so we can never represent numbers that have more than 19 digits. + size_t longest_digit_count = 19; + // Optimization note: the compiler can probably merge + // ((digit_count == 0) || (digit_count > longest_digit_count)) + // into a single branch since digit_count is unsigned. + if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } + // Here digit_count > 0. + if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } + // We can do the following... + // if (!jsoncharutils::is_structural_or_whitespace(*src)) { + // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; + // } + // as a single table lookup: + if(*src != '"') { return NUMBER_ERROR; } + // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. + // Performance note: This check is only needed when digit_count == longest_digit_count but it is + // so cheap that we might as well always make it. + if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } + return negative ? (~i+1) : i; +} + +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { + return (*src == '-'); +} + +simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } + return false; +} + +simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { + bool negative = (*src == '-'); + src += uint8_t(negative); + const uint8_t *p = src; + while(static_cast(*p - '0') <= 9) { p++; } + if ( p == src ) { return NUMBER_ERROR; } + if (jsoncharutils::is_structural_or_whitespace(*p)) { + // We have an integer. + // If the number is negative and valid, it must be a signed integer. + if(negative) { return number_type::signed_integer; } + // We want values larger or equal to 9223372036854775808 to be unsigned + // integers, and the other values to be signed integers. + int digit_count = int(p - src); + if(digit_count >= 19) { + const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); + if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { + return number_type::unsigned_integer; + } + } + return number_type::signed_integer; + } + // Hopefully, we have 'e' or 'E' or '.'. + return number_type::floating_point_number; +} + +// Never read at src_end or beyond +simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { + if(src == src_end) { return NUMBER_ERROR; } + // + // Check for minus sign + // + bool negative = (*src == '-'); + src += uint8_t(negative); + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + if(p == src_end) { return NUMBER_ERROR; } + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while ((p != src_end) && parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely((p != src_end) && (*p == '.'))) { + p++; + const uint8_t *start_decimal_digits = p; + if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while ((p != src_end) && parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if ((p != src_end) && (*p == 'e' || *p == 'E')) { + p++; + if(p == src_end) { return NUMBER_ERROR; } + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while ((p != src_end) && parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { + return NUMBER_ERROR; + } + return d; +} + +simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { + // + // Check for minus sign + // + bool negative = (*(src + 1) == '-'); + src += uint8_t(negative) + 1; + + // + // Parse the integer part. + // + uint64_t i = 0; + const uint8_t *p = src; + p += parse_digit(*p, i); + bool leading_zero = (i == 0); + while (parse_digit(*p, i)) { p++; } + // no integer digits, or 0123 (zero must be solo) + if ( p == src ) { return INCORRECT_TYPE; } + if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + + // + // Parse the decimal part. + // + int64_t exponent = 0; + bool overflow; + if (simdjson_likely(*p == '.')) { + p++; + const uint8_t *start_decimal_digits = p; + if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits + p++; + while (parse_digit(*p, i)) { p++; } + exponent = -(p - start_decimal_digits); + + // Overflow check. More than 19 digits (minus the decimal) may be overflow. + overflow = p-src-1 > 19; + if (simdjson_unlikely(overflow && leading_zero)) { + // Skip leading 0.00000 and see if it still overflows + const uint8_t *start_digits = src + 2; + while (*start_digits == '0') { start_digits++; } + overflow = start_digits-src > 19; + } + } else { + overflow = p-src > 19; + } + + // + // Parse the exponent + // + if (*p == 'e' || *p == 'E') { + p++; + bool exp_neg = *p == '-'; + p += exp_neg || *p == '+'; + + uint64_t exp = 0; + const uint8_t *start_exp_digits = p; + while (parse_digit(*p, exp)) { p++; } + // no exp digits, or 20+ exp digits + if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + + exponent += exp_neg ? 0-exp : exp; + } + + if (*p != '"') { return NUMBER_ERROR; } + + overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + + // + // Assemble (or slow-parse) the float + // + double d; + if (simdjson_likely(!overflow)) { + if (compute_float_64(exponent, i, negative, d)) { return d; } + } + if (!parse_float_fallback(src - uint8_t(negative), &d)) { + return NUMBER_ERROR; + } + return d; +} + +} // unnamed namespace +#endif // SIMDJSON_SKIPNUMBERPARSING + +} // namespace numberparsing + +inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { + switch (type) { + case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; + case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; + case number_type::floating_point_number: out << "floating-point number (binary64)"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_NUMBERPARSING_H +/* end file simdjson/generic/numberparsing.h for westmere */ + +/* including simdjson/generic/implementation_simdjson_result_base-inl.h for westmere: #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* begin file simdjson/generic/implementation_simdjson_result_base-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { + +// +// internal::implementation_simdjson_result_base inline implementation +// + +template +simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { + error = this->second; + if (!error) { + value = std::forward>(*this).first; + } +} + +template +simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { + error_code error; + std::forward>(*this).tie(value, error); + return error; +} + +template +simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { + return this->second; +} + +#if SIMDJSON_EXCEPTIONS + +template +simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +template +simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { + return std::forward>(*this).take_value(); +} + +#endif // SIMDJSON_EXCEPTIONS + +template +simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { + return this->first; +} + +template +simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { + return this->first; +} + +template +simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { + return std::forward(this->first); +} + +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept + : first{std::forward(value)}, second{error} {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept + : implementation_simdjson_result_base(T{}, error) {} +template +simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept + : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} + +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_IMPLEMENTATION_SIMDJSON_RESULT_BASE_INL_H +/* end file simdjson/generic/implementation_simdjson_result_base-inl.h for westmere */ +/* end file simdjson/generic/amalgamated.h for westmere */ +/* including simdjson/westmere/end.h: #include "simdjson/westmere/end.h" */ +/* begin file simdjson/westmere/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "westmere" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/westmere/end.h */ + +#endif // SIMDJSON_WESTMERE_H +/* end file simdjson/westmere.h */ +#else +#error Unknown SIMDJSON_BUILTIN_IMPLEMENTATION +#endif + +/* undefining SIMDJSON_CONDITIONAL_INCLUDE */ +#undef SIMDJSON_CONDITIONAL_INCLUDE + +#endif // SIMDJSON_BUILTIN_H +/* end file simdjson/builtin.h */ +/* skipped duplicate #include "simdjson/builtin/base.h" */ + +/* including simdjson/generic/ondemand/dependencies.h: #include "simdjson/generic/ondemand/dependencies.h" */ +/* begin file simdjson/generic/ondemand/dependencies.h */ +#ifdef SIMDJSON_CONDITIONAL_INCLUDE +#error simdjson/generic/ondemand/dependencies.h must be included before defining SIMDJSON_CONDITIONAL_INCLUDE! +#endif + +#ifndef SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H +#define SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H + +// Internal headers needed for ondemand generics. +// All includes not under simdjson/generic/ondemand must be here! +// Otherwise, amalgamation will fail. +/* skipped duplicate #include "simdjson/dom/base.h" // for MINIMAL_DOCUMENT_CAPACITY */ +/* skipped duplicate #include "simdjson/implementation.h" */ +/* skipped duplicate #include "simdjson/padded_string.h" */ +/* skipped duplicate #include "simdjson/padded_string_view.h" */ +/* skipped duplicate #include "simdjson/internal/dom_parser_implementation.h" */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H +/* end file simdjson/generic/ondemand/dependencies.h */ + +/* defining SIMDJSON_CONDITIONAL_INCLUDE */ +#define SIMDJSON_CONDITIONAL_INCLUDE + +#if SIMDJSON_BUILTIN_IMPLEMENTATION_IS(arm64) +/* including simdjson/arm64/ondemand.h: #include "simdjson/arm64/ondemand.h" */ +/* begin file simdjson/arm64/ondemand.h */ +#ifndef SIMDJSON_ARM64_ONDEMAND_H +#define SIMDJSON_ARM64_ONDEMAND_H + +/* including simdjson/arm64/begin.h: #include "simdjson/arm64/begin.h" */ +/* begin file simdjson/arm64/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "arm64" */ +#define SIMDJSON_IMPLEMENTATION arm64 +/* including simdjson/arm64/base.h: #include "simdjson/arm64/base.h" */ +/* begin file simdjson/arm64/base.h */ +#ifndef SIMDJSON_ARM64_BASE_H +#define SIMDJSON_ARM64_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Implementation for NEON (ARMv8). + */ +namespace arm64 { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_BASE_H +/* end file simdjson/arm64/base.h */ +/* including simdjson/arm64/intrinsics.h: #include "simdjson/arm64/intrinsics.h" */ +/* begin file simdjson/arm64/intrinsics.h */ +#ifndef SIMDJSON_ARM64_INTRINSICS_H +#define SIMDJSON_ARM64_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +static_assert(sizeof(uint8x16_t) <= simdjson::SIMDJSON_PADDING, "insufficient padding for arm64"); + +#endif // SIMDJSON_ARM64_INTRINSICS_H +/* end file simdjson/arm64/intrinsics.h */ +/* including simdjson/arm64/bitmanipulation.h: #include "simdjson/arm64/bitmanipulation.h" */ +/* begin file simdjson/arm64/bitmanipulation.h */ +#ifndef SIMDJSON_ARM64_BITMANIPULATION_H +#define SIMDJSON_ARM64_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int count_ones(uint64_t input_num) { + return vaddv_u8(vcnt_u8(vcreate_u8(input_num))); +} + + +#if defined(__GNUC__) // catches clang and gcc +/** + * ARM has a fast 64-bit "bit reversal function" that is handy. However, + * it is not generally available as an intrinsic function under Visual + * Studio (though this might be changing). Even under clang/gcc, we + * apparently need to invoke inline assembly. + */ +/* + * We use SIMDJSON_PREFER_REVERSE_BITS as a hint that algorithms that + * work well with bit reversal may use it. + */ +#define SIMDJSON_PREFER_REVERSE_BITS 1 + +/* reverse the bits */ +simdjson_inline uint64_t reverse_bits(uint64_t input_num) { + uint64_t rev_bits; + __asm("rbit %0, %1" : "=r"(rev_bits) : "r"(input_num)); + return rev_bits; +} + +/** + * Flips bit at index 63 - lz. Thus if you have 'leading_zeroes' leading zeroes, + * then this will set to zero the leading bit. It is possible for leading_zeroes to be + * greating or equal to 63 in which case we trigger undefined behavior, but the output + * of such undefined behavior is never used. + **/ +SIMDJSON_NO_SANITIZE_UNDEFINED +simdjson_inline uint64_t zero_leading_bit(uint64_t rev_bits, int leading_zeroes) { + return rev_bits ^ (uint64_t(0x8000000000000000) >> leading_zeroes); +} + +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, uint64_t *result) { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_BITMANIPULATION_H +/* end file simdjson/arm64/bitmanipulation.h */ +/* including simdjson/arm64/bitmask.h: #include "simdjson/arm64/bitmask.h" */ +/* begin file simdjson/arm64/bitmask.h */ +#ifndef SIMDJSON_ARM64_BITMASK_H +#define SIMDJSON_ARM64_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + ///////////// + // We could do this with PMULL, but it is apparently slow. + // + //#ifdef __ARM_FEATURE_CRYPTO // some ARM processors lack this extension + //return vmull_p64(-1ULL, bitmask); + //#else + // Analysis by @sebpop: + // When diffing the assembly for src/stage1_find_marks.cpp I see that the eors are all spread out + // in between other vector code, so effectively the extra cycles of the sequence do not matter + // because the GPR units are idle otherwise and the critical path is on the FP side. + // Also the PMULL requires two extra fmovs: GPR->FP (3 cycles in N1, 5 cycles in A72 ) + // and FP->GPR (2 cycles on N1 and 5 cycles on A72.) + /////////// + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif +/* end file simdjson/arm64/bitmask.h */ +/* including simdjson/arm64/numberparsing_defs.h: #include "simdjson/arm64/numberparsing_defs.h" */ +/* begin file simdjson/arm64/numberparsing_defs.h */ +#ifndef SIMDJSON_ARM64_NUMBERPARSING_DEFS_H +#define SIMDJSON_ARM64_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +#if _M_ARM64 +// __umulh requires intrin.h +#include +#endif // _M_ARM64 + +namespace simdjson { +namespace arm64 { +namespace numberparsing { + +// we don't have SSE, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace arm64 +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_ARM64_NUMBERPARSING_DEFS_H +/* end file simdjson/arm64/numberparsing_defs.h */ +/* including simdjson/arm64/simd.h: #include "simdjson/arm64/simd.h" */ +/* begin file simdjson/arm64/simd.h */ +#ifndef SIMDJSON_ARM64_SIMD_H +#define SIMDJSON_ARM64_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { +namespace simd { + +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO +namespace { +// Start of private section with Visual Studio workaround + + +/** + * make_uint8x16_t initializes a SIMD register (uint8x16_t). + * This is needed because, incredibly, the syntax uint8x16_t x = {1,2,3...} + * is not recognized under Visual Studio! This is a workaround. + * Using a std::initializer_list as a parameter resulted in + * inefficient code. With the current approach, if the parameters are + * compile-time constants, + * GNU GCC compiles it to ldr, the same as uint8x16_t x = {1,2,3...}. + * You should not use this function except for compile-time constants: + * it is not efficient. + */ +simdjson_inline uint8x16_t make_uint8x16_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8, + uint8_t x9, uint8_t x10, uint8_t x11, uint8_t x12, + uint8_t x13, uint8_t x14, uint8_t x15, uint8_t x16) { + // Doing a load like so end ups generating worse code. + // uint8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_u8(array); + uint8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_u8(x1, x, 0); + x = vsetq_lane_u8(x2, x, 1); + x = vsetq_lane_u8(x3, x, 2); + x = vsetq_lane_u8(x4, x, 3); + x = vsetq_lane_u8(x5, x, 4); + x = vsetq_lane_u8(x6, x, 5); + x = vsetq_lane_u8(x7, x, 6); + x = vsetq_lane_u8(x8, x, 7); + x = vsetq_lane_u8(x9, x, 8); + x = vsetq_lane_u8(x10, x, 9); + x = vsetq_lane_u8(x11, x, 10); + x = vsetq_lane_u8(x12, x, 11); + x = vsetq_lane_u8(x13, x, 12); + x = vsetq_lane_u8(x14, x, 13); + x = vsetq_lane_u8(x15, x, 14); + x = vsetq_lane_u8(x16, x, 15); + return x; +} + +simdjson_inline uint8x8_t make_uint8x8_t(uint8_t x1, uint8_t x2, uint8_t x3, uint8_t x4, + uint8_t x5, uint8_t x6, uint8_t x7, uint8_t x8) { + uint8x8_t x{}; + x = vset_lane_u8(x1, x, 0); + x = vset_lane_u8(x2, x, 1); + x = vset_lane_u8(x3, x, 2); + x = vset_lane_u8(x4, x, 3); + x = vset_lane_u8(x5, x, 4); + x = vset_lane_u8(x6, x, 5); + x = vset_lane_u8(x7, x, 6); + x = vset_lane_u8(x8, x, 7); + return x; +} + +// We have to do the same work for make_int8x16_t +simdjson_inline int8x16_t make_int8x16_t(int8_t x1, int8_t x2, int8_t x3, int8_t x4, + int8_t x5, int8_t x6, int8_t x7, int8_t x8, + int8_t x9, int8_t x10, int8_t x11, int8_t x12, + int8_t x13, int8_t x14, int8_t x15, int8_t x16) { + // Doing a load like so end ups generating worse code. + // int8_t array[16] = {x1, x2, x3, x4, x5, x6, x7, x8, + // x9, x10,x11,x12,x13,x14,x15,x16}; + // return vld1q_s8(array); + int8x16_t x{}; + // incredibly, Visual Studio does not allow x[0] = x1 + x = vsetq_lane_s8(x1, x, 0); + x = vsetq_lane_s8(x2, x, 1); + x = vsetq_lane_s8(x3, x, 2); + x = vsetq_lane_s8(x4, x, 3); + x = vsetq_lane_s8(x5, x, 4); + x = vsetq_lane_s8(x6, x, 5); + x = vsetq_lane_s8(x7, x, 6); + x = vsetq_lane_s8(x8, x, 7); + x = vsetq_lane_s8(x9, x, 8); + x = vsetq_lane_s8(x10, x, 9); + x = vsetq_lane_s8(x11, x, 10); + x = vsetq_lane_s8(x12, x, 11); + x = vsetq_lane_s8(x13, x, 12); + x = vsetq_lane_s8(x14, x, 13); + x = vsetq_lane_s8(x15, x, 14); + x = vsetq_lane_s8(x16, x, 15); + return x; +} + +// End of private section with Visual Studio workaround +} // namespace +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO + + + template + struct simd8; + + // + // Base class of simd8 and simd8, both of which use uint8x16_t internally. + // + template> + struct base_u8 { + uint8x16_t value; + static const int SIZE = sizeof(value); + + // Conversion from/to SIMD register + simdjson_inline base_u8(const uint8x16_t _value) : value(_value) {} + simdjson_inline operator const uint8x16_t&() const { return this->value; } + simdjson_inline operator uint8x16_t&() { return this->value; } + + // Bit operations + simdjson_inline simd8 operator|(const simd8 other) const { return vorrq_u8(*this, other); } + simdjson_inline simd8 operator&(const simd8 other) const { return vandq_u8(*this, other); } + simdjson_inline simd8 operator^(const simd8 other) const { return veorq_u8(*this, other); } + simdjson_inline simd8 bit_andnot(const simd8 other) const { return vbicq_u8(*this, other); } + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + simdjson_inline simd8& operator|=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline simd8& operator&=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline simd8& operator^=(const simd8 other) { auto this_cast = static_cast*>(this); *this_cast = *this_cast ^ other; return *this_cast; } + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return vceqq_u8(lhs, rhs); } + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_u8(prev_chunk, *this, 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base_u8 { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + static simdjson_inline simd8 splat(bool _value) { return vmovq_n_u8(uint8_t(-(!!_value))); } + + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // False constructor + simdjson_inline simd8() : simd8(vdupq_n_u8(0)) {} + // Splat constructor + simdjson_inline simd8(bool _value) : simd8(splat(_value)) {} + + // We return uint32_t instead of uint16_t because that seems to be more efficient for most + // purposes (cutting it down to uint16_t costs performance in some compilers). + simdjson_inline uint32_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t(0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80); +#else + const uint8x16_t bit_mask = {0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80}; +#endif + auto minput = *this & bit_mask; + uint8x16_t tmp = vpaddq_u8(minput, minput); + tmp = vpaddq_u8(tmp, tmp); + tmp = vpaddq_u8(tmp, tmp); + return vgetq_lane_u16(vreinterpretq_u16_u8(tmp), 0); + } + simdjson_inline bool any() const { return vmaxvq_u8(*this) != 0; } + }; + + // Unsigned bytes + template<> + struct simd8: base_u8 { + static simdjson_inline uint8x16_t splat(uint8_t _value) { return vmovq_n_u8(_value); } + static simdjson_inline uint8x16_t zero() { return vdupq_n_u8(0); } + static simdjson_inline uint8x16_t load(const uint8_t* values) { return vld1q_u8(values); } + + simdjson_inline simd8(const uint8x16_t _value) : base_u8(_value) {} + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[16]) : simd8(load(values)) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(make_uint8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(uint8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Store to array + simdjson_inline void store(uint8_t dst[16]) const { return vst1q_u8(dst, *this); } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return vqaddq_u8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return vqsubq_u8(*this, other); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_u8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_u8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + + // Order-specific operations + simdjson_inline uint8_t max_val() const { return vmaxvq_u8(*this); } + simdjson_inline uint8_t min_val() const { return vminvq_u8(*this); } + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_u8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_u8(*this, other); } + simdjson_inline simd8 operator<=(const simd8 other) const { return vcleq_u8(*this, other); } + simdjson_inline simd8 operator>=(const simd8 other) const { return vcgeq_u8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_u8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_u8(*this, other); } + // Same as >, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 gt_bits(const simd8 other) const { return simd8(*this > other); } + // Same as <, but instead of guaranteeing all 1's == true, false = 0 and true = nonzero. For ARM, returns all 1's. + simdjson_inline simd8 lt_bits(const simd8 other) const { return simd8(*this < other); } + + // Bit-specific operations + simdjson_inline simd8 any_bits_set(simd8 bits) const { return vtstq_u8(*this, bits); } + simdjson_inline bool any_bits_set_anywhere() const { return this->max_val() != 0; } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return (*this & bits).any_bits_set_anywhere(); } + template + simdjson_inline simd8 shr() const { return vshrq_n_u8(*this, N); } + template + simdjson_inline simd8 shl() const { return vshlq_n_u8(*this, N); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint16_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + uint64x2_t shufmask64 = {thintable_epi8[mask1], thintable_epi8[mask2]}; + uint8x16_t shufmask = vreinterpretq_u8_u64(shufmask64); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x16_t inc = make_uint8x16_t(0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x16_t inc = {0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + shufmask = vaddq_u8(shufmask, inc); + // this is the version "nearly pruned" + uint8x16_t pruned = vqtbl1q_u8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + uint8x16_t compactmask = vld1q_u8(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + uint8x16_t answer = vqtbl1q_u8(pruned, compactmask); + vst1q_u8(reinterpret_cast(output), answer); + } + + // Copies all bytes corresponding to a 0 in the low half of the mask (interpreted as a + // bitset) to output1, then those corresponding to a 0 in the high half to output2. + template + simdjson_inline void compress_halves(uint16_t mask, L *output1, L *output2) const { + using internal::thintable_epi8; + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + uint8x8_t compactmask1 = vcreate_u8(thintable_epi8[mask1]); + uint8x8_t compactmask2 = vcreate_u8(thintable_epi8[mask2]); + // we increment by 0x08 the second half of the mask +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + uint8x8_t inc = make_uint8x8_t(0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08); +#else + uint8x8_t inc = {0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08}; +#endif + compactmask2 = vadd_u8(compactmask2, inc); + // store each result (with the second store possibly overlapping the first) + vst1_u8((uint8_t*)output1, vqtbl1_u8(*this, compactmask1)); + vst1_u8((uint8_t*)output2, vqtbl1_u8(*this, compactmask2)); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_u8(*this, simd8(original)); + } + }; + + // Signed bytes + template<> + struct simd8 { + int8x16_t value; + + static simdjson_inline simd8 splat(int8_t _value) { return vmovq_n_s8(_value); } + static simdjson_inline simd8 zero() { return vdupq_n_s8(0); } + static simdjson_inline simd8 load(const int8_t values[16]) { return vld1q_s8(values); } + + // Conversion from/to SIMD register + simdjson_inline simd8(const int8x16_t _value) : value{_value} {} + simdjson_inline operator const int8x16_t&() const { return this->value; } + simdjson_inline operator int8x16_t&() { return this->value; } + + // Zero constructor + simdjson_inline simd8() : simd8(zero()) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(make_int8x16_t( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} +#else + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(int8x16_t{ + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + }) {} +#endif + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Store to array + simdjson_inline void store(int8_t dst[16]) const { return vst1q_s8(dst, *this); } + + // Explicit conversion to/from unsigned + // + // Under Visual Studio/ARM64 uint8x16_t and int8x16_t are apparently the same type. + // In theory, we could check this occurrence with std::same_as and std::enabled_if but it is C++14 + // and relatively ugly and hard to read. +#ifndef SIMDJSON_REGULAR_VISUAL_STUDIO + simdjson_inline explicit simd8(const uint8x16_t other): simd8(vreinterpretq_s8_u8(other)) {} +#endif + simdjson_inline explicit operator simd8() const { return vreinterpretq_u8_s8(this->value); } + + // Math + simdjson_inline simd8 operator+(const simd8 other) const { return vaddq_s8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return vsubq_s8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *this; } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *this; } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return vmaxq_s8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return vminq_s8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return vcgtq_s8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return vcltq_s8(*this, other); } + simdjson_inline simd8 operator==(const simd8 other) const { return vceqq_s8(*this, other); } + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return vextq_s8(prev_chunk, *this, 16 - N); + } + + // Perform a lookup assuming no value is larger than 16 + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return lookup_table.apply_lookup_16_to(*this); + } + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + + template + simdjson_inline simd8 apply_lookup_16_to(const simd8 original) { + return vqtbl1q_s8(*this, simd8(original)); + } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "ARM kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } + + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint64_t popcounts = vget_lane_u64(vreinterpret_u64_u8(vcnt_u8(vcreate_u8(~mask))), 0); + // compute the prefix sum of the popcounts of each byte + uint64_t offsets = popcounts * 0x0101010101010101; + this->chunks[0].compress_halves(uint16_t(mask), output, &output[popcounts & 0xFF]); + this->chunks[1].compress_halves(uint16_t(mask >> 16), &output[(offsets >> 8) & 0xFF], &output[(offsets >> 16) & 0xFF]); + this->chunks[2].compress_halves(uint16_t(mask >> 32), &output[(offsets >> 24) & 0xFF], &output[(offsets >> 32) & 0xFF]); + this->chunks[3].compress_halves(uint16_t(mask >> 48), &output[(offsets >> 40) & 0xFF], &output[(offsets >> 48) & 0xFF]); + return offsets >> 56; + } + + simdjson_inline uint64_t to_bitmask() const { +#ifdef SIMDJSON_REGULAR_VISUAL_STUDIO + const uint8x16_t bit_mask = make_uint8x16_t( + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + ); +#else + const uint8x16_t bit_mask = { + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, + 0x01, 0x02, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80 + }; +#endif + // Add each of the elements next to each other, successively, to stuff each 8 byte mask into one. + uint8x16_t sum0 = vpaddq_u8(this->chunks[0] & bit_mask, this->chunks[1] & bit_mask); + uint8x16_t sum1 = vpaddq_u8(this->chunks[2] & bit_mask, this->chunks[3] & bit_mask); + sum0 = vpaddq_u8(sum0, sum1); + sum0 = vpaddq_u8(sum0, sum0); + return vgetq_lane_u64(vreinterpretq_u64_u8(sum0), 0); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_SIMD_H +/* end file simdjson/arm64/simd.h */ +/* including simdjson/arm64/stringparsing_defs.h: #include "simdjson/arm64/stringparsing_defs.h" */ +/* begin file simdjson/arm64/stringparsing_defs.h */ +#ifndef SIMDJSON_ARM64_STRINGPARSING_DEFS_H +#define SIMDJSON_ARM64_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on ARM; therefore, we + // smash them together into a 64-byte mask and get the bitmask from there. + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_ARM64_STRINGPARSING_DEFS_H +/* end file simdjson/arm64/stringparsing_defs.h */ + +#define SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT 1 +/* end file simdjson/arm64/begin.h */ +/* including simdjson/generic/ondemand/amalgamated.h for arm64: #include "simdjson/generic/ondemand/amalgamated.h" */ +/* begin file simdjson/generic/ondemand/amalgamated.h for arm64 */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H) +#error simdjson/generic/ondemand/dependencies.h must be included before simdjson/generic/ondemand/amalgamated.h! +#endif + +// Stuff other things depend on +/* including simdjson/generic/ondemand/base.h for arm64: #include "simdjson/generic/ondemand/base.h" */ +/* begin file simdjson/generic/ondemand/base.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +/** + * A fast, simple, DOM-like interface that parses JSON as you use it. + * + * Designed for maximum speed and a lower memory profile. + */ +namespace ondemand { + +/** Represents the depth of a JSON value (number of nested arrays/objects). */ +using depth_t = int32_t; + +/** @copydoc simdjson::arm64::number_type */ +using number_type = simdjson::arm64::number_type; + +/** @private Position in the JSON buffer indexes */ +using token_position = const uint32_t *; + +class array; +class array_iterator; +class document; +class document_reference; +class document_stream; +class field; +class json_iterator; +enum class json_type; +struct number; +class object; +class object_iterator; +class parser; +class raw_json_string; +class token_iterator; +class value; +class value_iterator; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_BASE_H +/* end file simdjson/generic/ondemand/base.h for arm64 */ +/* including simdjson/generic/ondemand/value_iterator.h for arm64: #include "simdjson/generic/ondemand/value_iterator.h" */ +/* begin file simdjson/generic/ondemand/value_iterator.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * Iterates through a single JSON value at a particular depth. + * + * Does not keep track of the type of value: provides methods for objects, arrays and scalars and expects + * the caller to call the right ones. + * + * @private This is not intended for external use. + */ +class value_iterator { +protected: + /** The underlying JSON iterator */ + json_iterator *_json_iter{}; + /** The depth of this value */ + depth_t _depth{}; + /** + * The starting token index for this value + */ + token_position _start_position{}; + +public: + simdjson_inline value_iterator() noexcept = default; + + /** + * Denote that we're starting a document. + */ + simdjson_inline void start_document() noexcept; + + /** + * Skips a non-iterated or partially-iterated JSON value, whether it is a scalar, array or object. + * + * Optimized for scalars. + */ + simdjson_warn_unused simdjson_inline error_code skip_child() noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is at the start of the value + */ + simdjson_inline bool at_start() const noexcept; + + /** + * Tell whether the value is open--if the value has not been used, or the array/object is still open. + */ + simdjson_inline bool is_open() const noexcept; + + /** + * Tell whether the value is at an object's first field (just after the {). + */ + simdjson_inline bool at_first_field() const noexcept; + + /** + * Abandon all iteration. + */ + simdjson_inline void abandon() noexcept; + + /** + * Get the child value as a value_iterator. + */ + simdjson_inline value_iterator child_value() const noexcept; + + /** + * Get the depth of this value. + */ + simdjson_inline int32_t depth() const noexcept; + + /** + * Get the JSON type of this value. + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() const noexcept; + + /** + * @addtogroup object Object iteration + * + * Methods to iterate and find object fields. These methods generally *assume* the value is + * actually an object; the caller is responsible for keeping track of that fact. + * + * @{ + */ + + /** + * Start an object iteration. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + */ + simdjson_warn_unused simdjson_inline simdjson_result start_object() noexcept; + /** + * Start an object iteration from the root. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_object() noexcept; + /** + * Checks whether an object could be started from the root. May be called by start_root_object. + * + * @returns SUCCESS if it is possible to safely start an object from the root (document level). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_object() noexcept; + /** + * Start an object iteration after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_object() noexcept; + /** + * Start an object iteration from the root, after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_object() noexcept; + + /** + * Moves to the next field in an object. + * + * Looks for , and }. If } is found, the object is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return whether there is another field in the object. + * @error TAPE_ERROR If there is a comma missing between fields. + * @error TAPE_ERROR If there is a comma, but not enough tokens remaining to have a key, :, and value. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_field() noexcept; + + /** + * Get the current field's key. + */ + simdjson_warn_unused simdjson_inline simdjson_result field_key() noexcept; + + /** + * Pass the : in the field and move to its value. + */ + simdjson_warn_unused simdjson_inline error_code field_value() noexcept; + + /** + * Find the next field with the given key. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline error_code find_field(const std::string_view key) noexcept; + + /** + * Find the next field with the given key, *without* unescaping. This assumes object order: it + * will not find the field if it was already passed when looking for some *other* field. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_raw(const std::string_view key) noexcept; + + /** + * Find the field with the given key without regard to order, and *without* unescaping. + * + * This is an unordered object lookup: if the field is not found initially, it will cycle around and scan from the beginning. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_unordered_raw(const std::string_view key) noexcept; + + /** @} */ + + /** + * @addtogroup array Array iteration + * Methods to iterate over array elements. These methods generally *assume* the value is actually + * an object; the caller is responsible for keeping track of that fact. + * @{ + */ + + /** + * Check for an opening [ and start an array iteration. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + */ + simdjson_warn_unused simdjson_inline simdjson_result start_array() noexcept; + /** + * Check for an opening [ and start an array iteration while at the root. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_array() noexcept; + /** + * Checks whether an array could be started from the root. May be called by start_root_array. + * + * @returns SUCCESS if it is possible to safely start an array from the root (document level). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_array() noexcept; + /** + * Start an array iteration, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_array() noexcept; + /** + * Start an array iteration from the root, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_array() noexcept; + + /** + * Moves to the next element in an array. + * + * Looks for , and ]. If ] is found, the array is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return Whether there is another element in the array. + * @error TAPE_ERROR If there is a comma missing between elements. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_element() noexcept; + + /** + * Get a child value iterator. + */ + simdjson_warn_unused simdjson_inline value_iterator child() const noexcept; + + /** @} */ + + /** + * @defgroup scalar Scalar values + * @addtogroup scalar + * @{ + */ + + simdjson_warn_unused simdjson_inline simdjson_result get_string(bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_bool() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_null() noexcept; + simdjson_warn_unused simdjson_inline bool is_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_integer() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + simdjson_warn_unused simdjson_inline simdjson_result get_root_string(bool check_trailing, bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_wobbly_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_raw_json_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_bool(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline bool is_root_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_integer(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number_type(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_null(bool check_trailing) noexcept; + + simdjson_inline error_code error() const noexcept; + simdjson_inline uint8_t *&string_buf_loc() noexcept; + simdjson_inline const json_iterator &json_iter() const noexcept; + simdjson_inline json_iterator &json_iter() noexcept; + + simdjson_inline void assert_is_valid() const noexcept; + simdjson_inline bool is_valid() const noexcept; + + /** @} */ +protected: + /** + * Restarts an array iteration. + * @returns Whether the array has any elements (returns false for empty). + */ + simdjson_inline simdjson_result reset_array() noexcept; + /** + * Restarts an object iteration. + * @returns Whether the object has any fields (returns false for empty). + */ + simdjson_inline simdjson_result reset_object() noexcept; + /** + * move_at_start(): moves us so that we are pointing at the beginning of + * the container. It updates the index so that at_start() is true and it + * syncs the depth. The user can then create a new container instance. + * + * Usage: used with value::count_elements(). + **/ + simdjson_inline void move_at_start() noexcept; + + /** + * move_at_container_start(): moves us so that we are pointing at the beginning of + * the container so that assert_at_container_start() passes. + * + * Usage: used with reset_array() and reset_object(). + **/ + simdjson_inline void move_at_container_start() noexcept; + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + simdjson_inline value_iterator(json_iterator *json_iter, depth_t depth, token_position start_index) noexcept; + + simdjson_inline simdjson_result parse_null(const uint8_t *json) const noexcept; + simdjson_inline simdjson_result parse_bool(const uint8_t *json) const noexcept; + simdjson_inline const uint8_t *peek_start() const noexcept; + simdjson_inline uint32_t peek_start_length() const noexcept; + + /** + * The general idea of the advance_... methods and the peek_* methods + * is that you first peek and check that you have desired type. If you do, + * and only if you do, then you advance. + * + * We used to unconditionally advance. But this made reasoning about our + * current state difficult. + * Suppose you always advance. Look at the 'value' matching the key + * "shadowable" in the following example... + * + * ({"globals":{"a":{"shadowable":[}}}}) + * + * If the user thinks it is a Boolean and asks for it, then we check the '[', + * decide it is not a Boolean, but still move into the next character ('}'). Now + * we are left pointing at '}' right after a '['. And we have not yet reported + * an error, only that we do not have a Boolean. + * + * If, instead, you just stand your ground until it is content that you know, then + * you will only even move beyond the '[' if the user tells you that you have an + * array. So you will be at the '}' character inside the array and, hopefully, you + * will then catch the error because an array cannot start with '}', but the code + * processing Boolean values does not know this. + * + * So the contract is: first call 'peek_...' and then call 'advance_...' only + * if you have determined that it is a type you can handle. + * + * Unfortunately, it makes the code more verbose, longer and maybe more error prone. + */ + + simdjson_inline void advance_scalar(const char *type) noexcept; + simdjson_inline void advance_root_scalar(const char *type) noexcept; + simdjson_inline void advance_non_root_scalar(const char *type) noexcept; + + simdjson_inline const uint8_t *peek_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_root_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_non_root_scalar(const char *type) noexcept; + + + simdjson_inline error_code start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept; + simdjson_inline error_code end_container() noexcept; + + /** + * Advance to a place expecting a value (increasing depth). + * + * @return The current token (the one left behind). + * @error TAPE_ERROR If the document ended early. + */ + simdjson_inline simdjson_result advance_to_value() noexcept; + + simdjson_inline error_code incorrect_type_error(const char *message) const noexcept; + simdjson_inline error_code error_unless_more_tokens(uint32_t tokens=1) const noexcept; + + simdjson_inline bool is_at_start() const noexcept; + /** + * is_at_iterator_start() returns true on an array or object after it has just been + * created, whether the instance is empty or not. + * + * Usage: used by array::begin() in debug mode (SIMDJSON_DEVELOPMENT_CHECKS) + */ + simdjson_inline bool is_at_iterator_start() const noexcept; + + /** + * Assuming that we are within an object, this returns true if we + * are pointing at a key. + * + * Usage: the skip_child() method should never be used while we are pointing + * at a key inside an object. + */ + simdjson_inline bool is_at_key() const noexcept; + + inline void assert_at_start() const noexcept; + inline void assert_at_container_start() const noexcept; + inline void assert_at_root() const noexcept; + inline void assert_at_child() const noexcept; + inline void assert_at_next() const noexcept; + inline void assert_at_non_root_start() const noexcept; + + /** Get the starting position of this value */ + simdjson_inline token_position start_position() const noexcept; + + /** @copydoc error_code json_iterator::position() const noexcept; */ + simdjson_inline token_position position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position last_position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position end_position() const noexcept; + /** @copydoc error_code json_iterator::report_error(error_code error, const char *message) noexcept; */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + friend class document; + friend class object; + friend class array; + friend class value; +}; // value_iterator + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::value_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H +/* end file simdjson/generic/ondemand/value_iterator.h for arm64 */ +/* including simdjson/generic/ondemand/value.h for arm64: #include "simdjson/generic/ondemand/value.h" */ +/* begin file simdjson/generic/ondemand/value.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * An ephemeral JSON value returned during iteration. It is only valid for as long as you do + * not access more data in the JSON document. + */ +class value { +public: + /** + * Create a new invalid value. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline value() noexcept = default; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) noexcept; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() noexcept; + + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() noexcept; + + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + + /** + * Cast this JSON value (inside string) to a unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * Important: a value should be consumed once. Calling get_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + + + /** + * Cast this JSON value to a "wobbly" string. + * + * The string is may not be a valid UTF-8 string. + * See https://simonsapin.github.io/wtf-8/ + * + * Important: a value should be consumed once. Calling get_wobbly_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); +#endif + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + * + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * Performance hint: You should only call count_elements() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method on the object instance. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @return The type of JSON value (json_type::array, json_type::object, json_type::string, + * json_type::number, json_type::boolean, or json_type::null). + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the value is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the value is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the value is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * Performance note: if you call this function systematically + * before parsing a number, you may have fallen for a performance + * anti-pattern. + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + * + * Performance note: this is designed with performance in mind. When + * calling 'get_number()', you scan the number string only once, determining + * efficiently the type and storing it in an efficient manner. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. However, if this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view is guaranteed to be + * a non-space token. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline std::string_view raw_json_token() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + simdjson_inline simdjson_result current_location() noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. + * + * Calling at_pointer() on non-document instances (e.g., arrays and objects) is not + * standardized (by RFC 6901). We provide some experimental support for JSON pointers + * on non-document instances. Yet it is not the case when calling at_pointer on an array + * or an object instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + +protected: + /** + * Create a value. + */ + simdjson_inline value(const value_iterator &iter) noexcept; + + /** + * Skip this value, allowing iteration to continue. + */ + simdjson_inline void skip() noexcept; + + /** + * Start a value at the current position. + * + * (It should already be started; this is just a self-documentation method.) + */ + static simdjson_inline value start(const value_iterator &iter) noexcept; + + /** + * Resume a value. + */ + static simdjson_inline value resume(const value_iterator &iter) noexcept; + + /** + * Get the object, starting or resuming it as necessary + */ + simdjson_inline simdjson_result start_or_resume_object() noexcept; + + // simdjson_inline void log_value(const char *type) const noexcept; + // simdjson_inline void log_error(const char *message) const noexcept; + + value_iterator iter{}; + + friend class document; + friend class array_iterator; + friend class field; + friend class object; + friend struct simdjson_result; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::value &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result get_array() noexcept; + simdjson_inline simdjson_result get_object() noexcept; + + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() noexcept; + + template simdjson_inline error_code get(T &out) noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator arm64::ondemand::array() noexcept(false); + simdjson_inline operator arm64::ondemand::object() noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator arm64::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + */ + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + + /** @copydoc simdjson_inline std::string_view value::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** @copydoc simdjson_inline simdjson_result current_location() noexcept */ + simdjson_inline simdjson_result current_location() noexcept; + /** @copydoc simdjson_inline int32_t current_depth() const noexcept */ + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_H +/* end file simdjson/generic/ondemand/value.h for arm64 */ +/* including simdjson/generic/ondemand/logger.h for arm64: #include "simdjson/generic/ondemand/logger.h" */ +/* begin file simdjson/generic/ondemand/logger.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +// Logging should be free unless SIMDJSON_VERBOSE_LOGGING is set. Importantly, it is critical +// that the call to the log functions be side-effect free. Thus, for example, you should not +// create temporary std::string instances. +namespace logger { + +enum class log_level : int32_t { + info = 0, + error = 1 +}; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + +// We do not want these functions to be 'really inlined' since real inlining is +// for performance purposes and if you are using the loggers, you do not care about +// performance (or should not). +static inline void log_headers() noexcept; +// If args are provided, title will be treated as format string +template +static inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +template +static inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; +static inline void log_event(const json_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_value(const json_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_start_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; + +static inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail="") noexcept; +static inline void log_error(const json_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +static inline void log_event(const value_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const value_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_error(const value_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +} // namespace logger +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_H +/* end file simdjson/generic/ondemand/logger.h for arm64 */ +/* including simdjson/generic/ondemand/token_iterator.h for arm64: #include "simdjson/generic/ondemand/token_iterator.h" */ +/* begin file simdjson/generic/ondemand/token_iterator.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * Iterates through JSON tokens (`{` `}` `[` `]` `,` `:` `""` `123` `true` `false` `null`) + * detected by stage 1. + * + * @private This is not intended for external use. + */ +class token_iterator { +public: + /** + * Create a new invalid token_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline token_iterator() noexcept = default; + simdjson_inline token_iterator(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator &operator=(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator(const token_iterator &other) noexcept = default; + simdjson_inline token_iterator &operator=(const token_iterator &other) noexcept = default; + + /** + * Advance to the next token (returning the current one). + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + /** + * Reports the current offset in bytes from the start of the underlying buffer. + */ + simdjson_inline uint32_t current_offset() const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + + /** + * Return the current index. + */ + simdjson_inline token_position position() const noexcept; + /** + * Reset to a previously saved index. + */ + simdjson_inline void set_position(token_position target_position) noexcept; + + // NOTE: we don't support a full C++ iterator interface, because we expect people to make + // different calls to advance the iterator based on *their own* state. + + simdjson_inline bool operator==(const token_iterator &other) const noexcept; + simdjson_inline bool operator!=(const token_iterator &other) const noexcept; + simdjson_inline bool operator>(const token_iterator &other) const noexcept; + simdjson_inline bool operator>=(const token_iterator &other) const noexcept; + simdjson_inline bool operator<(const token_iterator &other) const noexcept; + simdjson_inline bool operator<=(const token_iterator &other) const noexcept; + +protected: + simdjson_inline token_iterator(const uint8_t *buf, token_position position) noexcept; + + /** + * Get the index of the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_index(int32_t delta=0) const noexcept; + /** + * Get the index of the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline uint32_t peek_index(token_position position) const noexcept; + + const uint8_t *buf{}; + token_position _position{}; + + friend class json_iterator; + friend class value_iterator; + friend class object; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::token_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H +/* end file simdjson/generic/ondemand/token_iterator.h for arm64 */ +/* including simdjson/generic/ondemand/json_iterator.h for arm64: #include "simdjson/generic/ondemand/json_iterator.h" */ +/* begin file simdjson/generic/ondemand/json_iterator.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * Iterates through JSON tokens, keeping track of depth and string buffer. + * + * @private This is not intended for external use. + */ +class json_iterator { +protected: + token_iterator token{}; + ondemand::parser *parser{}; + /** + * Next free location in the string buffer. + * + * Used by raw_json_string::unescape() to have a place to unescape strings to. + */ + uint8_t *_string_buf_loc{}; + /** + * JSON error, if there is one. + * + * INCORRECT_TYPE and NO_SUCH_FIELD are *not* stored here, ever. + * + * PERF NOTE: we *hope* this will be elided into control flow, as it is only used (a) in the first + * iteration of the loop, or (b) for the final iteration after a missing comma is found in ++. If + * this is not elided, we should make sure it's at least not using up a register. Failing that, + * we should store it in document so there's only one of them. + */ + error_code error{SUCCESS}; + /** + * Depth of the current token in the JSON. + * + * - 0 = finished with document + * - 1 = document root value (could be [ or {, not yet known) + * - 2 = , or } inside root array/object + * - 3 = key or value inside root array/object. + */ + depth_t _depth{}; + /** + * Beginning of the document indexes. + * Normally we have root == parser->implementation->structural_indexes.get() + * but this may differ, especially in streaming mode (where we have several + * documents); + */ + token_position _root{}; + /** + * Normally, a json_iterator operates over a single document, but in + * some cases, we may have a stream of documents. This attribute is meant + * as meta-data: the json_iterator works the same irrespective of the + * value of this attribute. + */ + bool _streaming{false}; + +public: + simdjson_inline json_iterator() noexcept = default; + simdjson_inline json_iterator(json_iterator &&other) noexcept; + simdjson_inline json_iterator &operator=(json_iterator &&other) noexcept; + simdjson_inline explicit json_iterator(const json_iterator &other) noexcept = default; + simdjson_inline json_iterator &operator=(const json_iterator &other) noexcept = default; + /** + * Skips a JSON value, whether it is a scalar, array or object. + */ + simdjson_warn_unused simdjson_inline error_code skip_child(depth_t parent_depth) noexcept; + + /** + * Tell whether the iterator is still at the start + */ + simdjson_inline bool at_root() const noexcept; + + /** + * Tell whether we should be expected to run in streaming + * mode (iterating over many documents). It is pure metadata + * that does not affect how the iterator works. It is used by + * start_root_array() and start_root_object(). + */ + simdjson_inline bool streaming() const noexcept; + + /** + * Get the root value iterator + */ + simdjson_inline token_position root_position() const noexcept; + /** + * Assert that we are at the document depth (== 1) + */ + simdjson_inline void assert_at_document_depth() const noexcept; + /** + * Assert that we are at the root of the document + */ + simdjson_inline void assert_at_root() const noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is live (has not been moved). + */ + simdjson_inline bool is_alive() const noexcept; + + /** + * Abandon this iterator, setting depth to 0 (as if the document is finished). + */ + simdjson_inline void abandon() noexcept; + + /** + * Advance the current token without modifying depth. + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + + /** + * Returns true if there is a single token in the index (i.e., it is + * a JSON with a scalar value such as a single number). + * + * @return whether there is a single token + */ + simdjson_inline bool is_single_token() const noexcept; + + /** + * Assert that there are at least the given number of tokens left. + * + * Has no effect in release builds. + */ + simdjson_inline void assert_more_tokens(uint32_t required_tokens=1) const noexcept; + /** + * Assert that the given position addresses an actual token (is within bounds). + * + * Has no effect in release builds. + */ + simdjson_inline void assert_valid_position(token_position position) const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + /** + * Get a pointer to the current location in the input buffer. + * + * This is not null-terminated; it is a view into the JSON. + * + * You may be pointing outside of the input buffer: it is not generally + * safe to dereference this pointer. + */ + simdjson_inline const uint8_t *unsafe_pointer() const noexcept; + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token to retrieve. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token to retrieve. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + /** + * Get the JSON text for the last token in the document. + * + * This is not null-terminated; it is a view into the JSON. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek_last() const noexcept; + + /** + * Ascend one level. + * + * Validates that the depth - 1 == parent_depth. + * + * @param parent_depth the expected parent depth. + */ + simdjson_inline void ascend_to(depth_t parent_depth) noexcept; + + /** + * Descend one level. + * + * Validates that the new depth == child_depth. + * + * @param child_depth the expected child depth. + */ + simdjson_inline void descend_to(depth_t child_depth) noexcept; + simdjson_inline void descend_to(depth_t child_depth, int32_t delta) noexcept; + + /** + * Get current depth. + */ + simdjson_inline depth_t depth() const noexcept; + + /** + * Get current (writeable) location in the string buffer. + */ + simdjson_inline uint8_t *&string_buf_loc() noexcept; + + /** + * Report an unrecoverable error, preventing further iteration. + * + * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + /** + * Log error, but don't stop iteration. + * @param error The error to report. Must be INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code optional_error(error_code error, const char *message) noexcept; + + /** + * Take an input in json containing max_len characters and attempt to copy it over to tmpbuf, a buffer with + * N bytes of capacity. It will return false if N is too small (smaller than max_len) of if it is zero. + * The buffer (tmpbuf) is padded with space characters. + */ + simdjson_warn_unused simdjson_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept; + + simdjson_inline token_position position() const noexcept; + /** + * Write the raw_json_string to the string buffer and return a string_view. + * Each raw_json_string should be unescaped once, or else the string buffer might + * overflow. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, bool allow_replacement) noexcept; + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in) noexcept; + simdjson_inline void reenter_child(token_position position, depth_t child_depth) noexcept; + + simdjson_inline error_code consume_character(char c) noexcept; +#if SIMDJSON_DEVELOPMENT_CHECKS + simdjson_inline token_position start_position(depth_t depth) const noexcept; + simdjson_inline void set_start_position(depth_t depth, token_position position) noexcept; +#endif + + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Updates this json iterator so that it is back at the beginning of the document, + * as if it had just been created. + */ + inline void rewind() noexcept; + /** + * This checks whether the {,},[,] are balanced so that the document + * ends with proper zero depth. This requires scanning the whole document + * and it may be expensive. It is expected that it will be rarely called. + * It does not attempt to match { with } and [ with ]. + */ + inline bool balanced() const noexcept; +protected: + simdjson_inline json_iterator(const uint8_t *buf, ondemand::parser *parser) noexcept; + /// The last token before the end + simdjson_inline token_position last_position() const noexcept; + /// The token *at* the end. This points at gibberish and should only be used for comparison. + simdjson_inline token_position end_position() const noexcept; + /// The end of the buffer. + simdjson_inline token_position end() const noexcept; + + friend class document; + friend class document_stream; + friend class object; + friend class array; + friend class value; + friend class raw_json_string; + friend class parser; + friend class value_iterator; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; // json_iterator + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::json_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H +/* end file simdjson/generic/ondemand/json_iterator.h for arm64 */ +/* including simdjson/generic/ondemand/json_type.h for arm64: #include "simdjson/generic/ondemand/json_type.h" */ +/* begin file simdjson/generic/ondemand/json_type.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * The type of a JSON value. + */ +enum class json_type { + // Start at 1 to catch uninitialized / default values more easily + array=1, ///< A JSON array ( [ 1, 2, 3 ... ] ) + object, ///< A JSON object ( { "a": 1, "b" 2, ... } ) + number, ///< A JSON number ( 1 or -2.3 or 4.5e6 ...) + string, ///< A JSON string ( "a" or "hello world\n" ...) + boolean, ///< A JSON boolean (true or false) + null ///< A JSON null (null) +}; + +/** + * A type representing a JSON number. + * The design of the struct is deliberately straight-forward. All + * functions return standard values with no error check. + */ +struct number { + + /** + * return the automatically determined type of + * the number: number_type::floating_point_number, + * number_type::signed_integer or number_type::unsigned_integer. + * + * enum class number_type { + * floating_point_number=1, /// a binary64 number + * signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + * unsigned_integer /// a positive integer larger or equal to 1<<63 + * }; + */ + simdjson_inline ondemand::number_type get_number_type() const noexcept; + /** + * return true if the automatically determined type of + * the number is number_type::unsigned_integer. + */ + simdjson_inline bool is_uint64() const noexcept; + /** + * return the value as a uint64_t, only valid if is_uint64() is true. + */ + simdjson_inline uint64_t get_uint64() const noexcept; + simdjson_inline operator uint64_t() const noexcept; + + /** + * return true if the automatically determined type of + * the number is number_type::signed_integer. + */ + simdjson_inline bool is_int64() const noexcept; + /** + * return the value as a int64_t, only valid if is_int64() is true. + */ + simdjson_inline int64_t get_int64() const noexcept; + simdjson_inline operator int64_t() const noexcept; + + + /** + * return true if the automatically determined type of + * the number is number_type::floating_point_number. + */ + simdjson_inline bool is_double() const noexcept; + /** + * return the value as a double, only valid if is_double() is true. + */ + simdjson_inline double get_double() const noexcept; + simdjson_inline operator double() const noexcept; + + /** + * Convert the number to a double. Though it always succeed, the conversion + * may be lossy if the number cannot be represented exactly. + */ + simdjson_inline double as_double() const noexcept; + + +protected: + /** + * The next block of declaration is designed so that we can call the number parsing + * functions on a number type. They are protected and should never be used outside + * of the core simdjson library. + */ + friend class value_iterator; + template + friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer); + template + friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer); + template + friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer); + /** Store a signed 64-bit value to the number. */ + simdjson_inline void append_s64(int64_t value) noexcept; + /** Store an unsigned 64-bit value to the number. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + /** Store a double value to the number. */ + simdjson_inline void append_double(double value) noexcept; + /** Specifies that the value is a double, but leave it undefined. */ + simdjson_inline void skip_double() noexcept; + /** + * End of friend declarations. + */ + + /** + * Our attributes are a union type (size = 64 bits) + * followed by a type indicator. + */ + union { + double floating_point_number; + int64_t signed_integer; + uint64_t unsigned_integer; + } payload{0}; + number_type type{number_type::signed_integer}; +}; + +/** + * Write the JSON type to the output stream + * + * @param out The output stream. + * @param type The json_type. + */ +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept; + +#if SIMDJSON_EXCEPTIONS +/** + * Send JSON type to an output stream. + * + * @param out The output stream. + * @param type The json_type. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false); +#endif + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::json_type &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H +/* end file simdjson/generic/ondemand/json_type.h for arm64 */ +/* including simdjson/generic/ondemand/raw_json_string.h for arm64: #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * A string escaped per JSON rules, terminated with quote ("). They are used to represent + * unescaped keys inside JSON documents. + * + * (In other words, a pointer to the beginning of a string, just after the start quote, inside a + * JSON file.) + * + * This class is deliberately simplistic and has little functionality. You can + * compare a raw_json_string instance with an unescaped C string, but + * that is nearly all you can do. + * + * The raw_json_string is unescaped. If you wish to write an unescaped version of it to your own + * buffer, you may do so using the parser.unescape(string, buff) method, using an ondemand::parser + * instance. Doing so requires you to have a sufficiently large buffer. + * + * The raw_json_string instances originate typically from field instance which in turn represent + * key-value pairs from object instances. From a field instance, you get the raw_json_string + * instance by calling key(). You can, if you want a more usable string_view instance, call + * the unescaped_key() method on the field instance. You may also create a raw_json_string from + * any other string value, with the value.get_raw_json_string() method. Again, you can get + * a more usable string_view instance by calling get_string(). + * + */ +class raw_json_string { +public: + /** + * Create a new invalid raw_json_string. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline raw_json_string() noexcept = default; + + /** + * Create a new invalid raw_json_string pointed at the given location in the JSON. + * + * The given location must be just *after* the beginning quote (") in the JSON file. + * + * It *must* be terminated by a ", and be a valid JSON string. + */ + simdjson_inline raw_json_string(const uint8_t * _buf) noexcept; + /** + * Get the raw pointer to the beginning of the string in the JSON (just after the "). + * + * It is possible for this function to return a null pointer if the instance + * has outlived its existence. + */ + simdjson_inline const char * raw() const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done) on target.size() characters, + * and if the raw_json_string instance has a quote character at byte index target.size(). + * We never read more than length + 1 bytes in the raw_json_string instance. + * If length is smaller than target.size(), this will return false. + * + * The std::string_view instance may contain any characters. However, the caller + * is responsible for setting length so that length bytes may be read in the + * raw_json_string. + * + * Performance: the comparison may be done using memcmp which may be efficient + * for long strings. + */ + simdjson_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The std::string_view instance should not contain unescaped quote characters: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * Performance: the comparison is done byte-by-byte which might be inefficient for + * long strings. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The provided C string should not contain an unescaped quote character: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(const char* target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(const char* target) const noexcept; + + /** + * Returns true if target is free from unescaped quote. If target is known at + * compile-time, we might expect the computation to happen at compile time with + * many compilers (not all!). + */ + static simdjson_inline bool is_free_from_unescaped_quote(std::string_view target) noexcept; + static simdjson_inline bool is_free_from_unescaped_quote(const char* target) noexcept; + +private: + + + /** + * This will set the inner pointer to zero, effectively making + * this instance unusable. + */ + simdjson_inline void consume() noexcept { buf = nullptr; } + + /** + * Checks whether the inner pointer is non-null and thus usable. + */ + simdjson_inline simdjson_warn_unused bool alive() const noexcept { return buf != nullptr; } + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result will be a valid UTF-8. + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + * @param allow_replacement Whether we allow replacement of invalid surrogate pairs. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape(json_iterator &iter, bool allow_replacement) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result may not be a valid UTF-8. https://simonsapin.github.io/wtf-8/ + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(json_iterator &iter) const noexcept; + const uint8_t * buf{}; + friend class object; + friend class field; + friend class parser; + friend struct simdjson_result; +}; + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &, const raw_json_string &) noexcept; + +/** + * Comparisons between raw_json_string and std::string_view instances are potentially unsafe: the user is responsible + * for providing a string with no unescaped quote. Note that unescaped quotes cannot be present in valid JSON strings. + */ +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept; +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept; + + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::raw_json_string &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private + + simdjson_inline simdjson_result raw() const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape(arm64::ondemand::json_iterator &iter, bool allow_replacement) const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(arm64::ondemand::json_iterator &iter) const noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H +/* end file simdjson/generic/ondemand/raw_json_string.h for arm64 */ +/* including simdjson/generic/ondemand/parser.h for arm64: #include "simdjson/generic/ondemand/parser.h" */ +/* begin file simdjson/generic/ondemand/parser.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * The default batch size for document_stream instances for this On Demand kernel. + * Note that different On Demand kernel may use a different DEFAULT_BATCH_SIZE value + * in the future. + */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; + +/** + * A JSON fragment iterator. + * + * This holds the actual iterator as well as the buffer for writing strings. + */ +class parser { +public: + /** + * Create a JSON parser. + * + * The new parser will have zero capacity. + */ + inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; + + inline parser(parser &&other) noexcept = default; + simdjson_inline parser(const parser &other) = delete; + simdjson_inline parser &operator=(const parser &other) = delete; + simdjson_inline parser &operator=(parser &&other) noexcept = default; + + /** Deallocate the JSON parser. */ + inline ~parser() noexcept = default; + + /** + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * document doc = parser.iterate(json); + * + * It is expected that the content is a valid UTF-8 file, containing a valid JSON document. + * Otherwise the iterate method may return an error. In particular, the whole input should be + * valid: we do not attempt to tolerate incorrect content either before or after a JSON + * document. + * + * ### IMPORTANT: Validate what you use + * + * Calling iterate on an invalid JSON document may not immediately trigger an error. The call to + * iterate does not parse and validate the whole document. + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * @param len The length of the JSON. + * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING). + * + * @return The document, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate(padded_string_view json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const char *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(std::string_view json, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const std::string &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(padded_string &&json) & noexcept = delete; + + /** + * @private + * + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * json_iterator doc = parser.iterate(json); + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * The ondemand::document instance holds the iterator. The document must remain in scope + * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * + * @return The iterator, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate_raw(padded_string_view json) & noexcept; + + + /** + * Parse a buffer containing many JSON documents. + * + * auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded; + * ondemand::parser parser; + * ondemand::document_stream docs = parser.iterate_many(json); + * for (auto & doc : docs) { + * std::cout << doc["foo"] << std::endl; + * } + * // Prints 1 2 3 + * + * No copy of the input buffer is made. + * + * The function is lazy: it may be that no more than one JSON document at a time is parsed. + * + * The caller is responsabile to ensure that the input string data remains unchanged and is + * not deleted during the loop. + * + * ### Format + * + * The buffer must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) + * + * documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. Documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with ASCII whitespace. + * + * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8). + * + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excessively small values may impact negatively the + * performance. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * ### Threads + * + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The concatenated JSON to parse. + * @param len The length of the concatenated JSON. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 10MB, which has been a reasonable sweet spot in our tests. + * @param allow_comma_separated (defaults on false) This allows a mode where the documents are + * separated by commas instead of whitespace. It comes with a performance + * penalty because the entire document is indexed at once (and the document must be + * less than 4 GB), and there is no multithreading. In this mode, the batch_size parameter + * is effectively ignored, as it is set to at least the document size. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const std::string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const std::string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const padded_string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const padded_string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_result iterate_many(const char *buf, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept = delete; + + /** The capacity of this parser (the largest document it can process). */ + simdjson_inline size_t capacity() const noexcept; + /** The maximum capacity of this parser (the largest document it is allowed to process). */ + simdjson_inline size_t max_capacity() const noexcept; + simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; + /** + * The maximum depth of this parser (the most deeply nested objects and arrays it can process). + * This parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * The max_depth parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused error_code allocate(size_t capacity, size_t max_depth=DEFAULT_MAX_DEPTH) noexcept; + + #ifdef SIMDJSON_THREADS_ENABLED + /** + * The parser instance can use threads when they are available to speed up some + * operations. It is enabled by default. Changing this attribute will change the + * behavior of the parser for future operations. + */ + bool threaded{true}; + #endif + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result must be valid UTF-8. + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @param allow_replacement Whether we allow a replacement if the input string contains unmatched surrogate pairs. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement = false) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result may not be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept; + +private: + /** @private [for benchmarking access] The implementation to use */ + std::unique_ptr implementation{}; + size_t _capacity{0}; + size_t _max_capacity; + size_t _max_depth{DEFAULT_MAX_DEPTH}; + std::unique_ptr string_buf{}; +#if SIMDJSON_DEVELOPMENT_CHECKS + std::unique_ptr start_positions{}; +#endif + + friend class json_iterator; + friend class document_stream; +}; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::parser &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_H +/* end file simdjson/generic/ondemand/parser.h for arm64 */ + +// All other declarations +/* including simdjson/generic/ondemand/array.h for arm64: #include "simdjson/generic/ondemand/array.h" */ +/* begin file simdjson/generic/ondemand/array.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * A forward-only JSON array. + */ +class array { +public: + /** + * Create a new invalid array. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline array() noexcept = default; + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an array is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the beginning of the array and checks whether the + * array is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result is_empty() & noexcept; + /** + * Reset the iterator so that we are pointing back at the + * beginning of the array. You should still consume values only once even if you + * can iterate through the array more than once. If you unescape a string + * within the array more than once, you have unsafe code. Note that rewinding + * an array means that you may need to reparse it anew: it is not a free + * operation. + * + * @returns true if the array contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/0/foo/a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an array + * instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the array and returns a string_view instance corresponding to the + * array as represented in JSON. It points inside the original document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + + /** + * Get the value at the given index. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; +protected: + /** + * Go to the end of the array, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + + /** + * Begin array iteration. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + */ + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + /** + * Begin array iteration from the root. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + * @error TAPE_ERROR if there is no closing ] at the end of the document. + */ + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + /** + * Begin array iteration. + * + * This version of the method should be called after the initial [ has been verified, and is + * intended for use by switch statements that check the type of a value. + * + * @param iter The iterator. Must be after the initial [. Will be *moved* into the resulting array. + */ + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + + /** + * Create an array at the given Internal array creation. Call array::start() or array::started() instead of this. + * + * @param iter The iterator. Must either be at the start of the first element with iter.is_alive() + * == true, or past the [] with is_alive() == false if the array is empty. Will be *moved* + * into the resulting array. + */ + simdjson_inline array(const value_iterator &iter) noexcept; + + /** + * Iterator marking current position. + * + * iter.is_alive() == false indicates iteration is complete. + */ + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; + friend struct simdjson_result; + friend class array_iterator; +}; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::array &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + inline simdjson_result count_elements() & noexcept; + inline simdjson_result is_empty() & noexcept; + inline simdjson_result reset() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_H +/* end file simdjson/generic/ondemand/array.h for arm64 */ +/* including simdjson/generic/ondemand/array_iterator.h for arm64: #include "simdjson/generic/ondemand/array_iterator.h" */ +/* begin file simdjson/generic/ondemand/array_iterator.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * A forward-only JSON array. + * + * This is an input_iterator, meaning: + * - It is forward-only + * - * must be called exactly once per element. + * - ++ must be called exactly once in between each * (*, ++, *, ++, * ...) + */ +class array_iterator { +public: + /** Create a new, invalid array iterator. */ + simdjson_inline array_iterator() noexcept = default; + + // + // Iterator interface + // + + /** + * Get the current element. + * + * Part of the std::iterator interface. + */ + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + /** + * Check if we are at the end of the JSON. + * + * Part of the std::iterator interface. + * + * @return true if there are no more elements in the JSON array. + */ + simdjson_inline bool operator==(const array_iterator &) const noexcept; + /** + * Check if there are more elements in the JSON array. + * + * Part of the std::iterator interface. + * + * @return true if there are more elements in the JSON array. + */ + simdjson_inline bool operator!=(const array_iterator &) const noexcept; + /** + * Move to the next element. + * + * Part of the std::iterator interface. + */ + simdjson_inline array_iterator &operator++() noexcept; + +private: + value_iterator iter{}; + + simdjson_inline array_iterator(const value_iterator &iter) noexcept; + + friend class array; + friend class value; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::array_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H +/* end file simdjson/generic/ondemand/array_iterator.h for arm64 */ +/* including simdjson/generic/ondemand/document.h for arm64: #include "simdjson/generic/ondemand/document.h" */ +/* begin file simdjson/generic/ondemand/document.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * A JSON document. It holds a json_iterator instance. + * + * Used by tokens to get text, and string buffer location. + * + * You must keep the document around during iteration. + */ +class document { +public: + /** + * Create a new invalid document. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline document() noexcept = default; + simdjson_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy + simdjson_inline document(document &&other) noexcept = default; + simdjson_inline document &operator=(const document &other) noexcept = delete; + simdjson_inline document &operator=(document &&other) noexcept = default; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() & noexcept; + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() & noexcept; + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + /** + * Cast this JSON value (inside string) to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Important: Calling get_string() twice on the same document is an error. + * + * @param Whether to allow a replacement character for unmatched surrogate pairs. + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + /** + * Cast this JSON value to a string. + * + * The string is not guaranteed to be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * + * Important: Calling get_wobbly_string() twice on the same document is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + /** + * Cast this JSON value to a value when the document is an object or an array. + * + * @returns A value if a JSON array or object cannot be found. + * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result get_value() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() & noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + /** @overload template simdjson_result get() & noexcept */ + template simdjson_inline simdjson_result get() && noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value + * + * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances. + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) & noexcept; + /** @overload template error_code get(T &out) & noexcept */ + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() & noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() & noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); + /** + * Cast this JSON value to a value. + * + * @returns A value value. + * @exception if a JSON value cannot be found + */ + simdjson_inline operator value() noexcept(false); +#endif + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) & noexcept; + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to + * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the document is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the document is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the document is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. If this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view may be the padded buffer. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** + * Reset the iterator inside the document instance so we are pointing back at the + * beginning of the document, as if it had just been created. It invalidates all + * values, objects and arrays that you have created so far (including unescaped strings). + */ + inline void rewind() noexcept; + /** + * Returns debugging information. + */ + inline std::string to_debug_string() noexcept; + /** + * Some unrecoverable error conditions may render the document instance unusable. + * The is_alive() method returns true when the document is still suitable. + */ + inline bool is_alive() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Returns true if this document has been fully parsed. + * If you have consumed the whole document and at_end() returns + * false, then there may be trailing content. + */ + inline bool at_end() const noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() automatically calls rewind between each call. Thus + * all values, objects and arrays that you have created so far (including unescaped strings) + * are invalidated. After calling at_pointer, you need to consume the result: string values + * should be stored in your own variables, arrays should be decoded and stored in your own array-like + * structures and so forth. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + * - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the document and returns a string_view instance corresponding to the + * document as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; +protected: + /** + * Consumes the document. + */ + simdjson_inline error_code consume() noexcept; + + simdjson_inline document(ondemand::json_iterator &&iter) noexcept; + simdjson_inline const uint8_t *text(uint32_t idx) const noexcept; + + simdjson_inline value_iterator resume_value_iterator() noexcept; + simdjson_inline value_iterator get_root_value_iterator() noexcept; + simdjson_inline simdjson_result start_or_resume_object() noexcept; + static simdjson_inline document start(ondemand::json_iterator &&iter) noexcept; + + // + // Fields + // + json_iterator iter{}; ///< Current position in the document + static constexpr depth_t DOCUMENT_DEPTH = 0; ///< document depth is always 0 + + friend class array_iterator; + friend class value; + friend class ondemand::parser; + friend class object; + friend class array; + friend class field; + friend class token; + friend class document_stream; + friend class document_reference; +}; + + +/** + * A document_reference is a thin wrapper around a document reference instance. + */ +class document_reference { +public: + simdjson_inline document_reference() noexcept; + simdjson_inline document_reference(document &d) noexcept; + simdjson_inline document_reference(const document_reference &other) noexcept = default; + simdjson_inline document_reference& operator=(const document_reference &other) noexcept = default; + simdjson_inline void rewind() noexcept; + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + + simdjson_inline simdjson_result is_null() noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + simdjson_inline operator document&() const noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator array() & noexcept(false); + simdjson_inline operator object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + simdjson_inline simdjson_result raw_json_token() noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +private: + document *doc{nullptr}; +}; +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::document &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() & noexcept; + template simdjson_inline simdjson_result get() && noexcept; + + template simdjson_inline error_code get(T &out) & noexcept; + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator arm64::ondemand::array() & noexcept(false); + simdjson_inline operator arm64::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator arm64::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator arm64::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool at_end() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + + + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::document_reference value, error_code error) noexcept; + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator arm64::ondemand::array() & noexcept(false); + simdjson_inline operator arm64::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator arm64::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator arm64::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document_reference::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H +/* end file simdjson/generic/ondemand/document.h for arm64 */ +/* including simdjson/generic/ondemand/document_stream.h for arm64: #include "simdjson/generic/ondemand/document_stream.h" */ +/* begin file simdjson/generic/ondemand/document_stream.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#ifdef SIMDJSON_THREADS_ENABLED +#include +#include +#include +#endif + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED +/** @private Custom worker class **/ +struct stage1_worker { + stage1_worker() noexcept = default; + stage1_worker(const stage1_worker&) = delete; + stage1_worker(stage1_worker&&) = delete; + stage1_worker operator=(const stage1_worker&) = delete; + ~stage1_worker(); + /** + * We only start the thread when it is needed, not at object construction, this may throw. + * You should only call this once. + **/ + void start_thread(); + /** + * Start a stage 1 job. You should first call 'run', then 'finish'. + * You must call start_thread once before. + */ + void run(document_stream * ds, parser * stage1, size_t next_batch_start); + /** Wait for the run to finish (blocking). You should first call 'run', then 'finish'. **/ + void finish(); + +private: + + /** + * Normally, we would never stop the thread. But we do in the destructor. + * This function is only safe assuming that you are not waiting for results. You + * should have called run, then finish, and be done. + **/ + void stop_thread(); + + std::thread thread{}; + /** These three variables define the work done by the thread. **/ + ondemand::parser * stage1_thread_parser{}; + size_t _next_batch_start{}; + document_stream * owner{}; + /** + * We have two state variables. This could be streamlined to one variable in the future but + * we use two for clarity. + */ + bool has_work{false}; + bool can_work{true}; + + /** + * We lock using a mutex. + */ + std::mutex locking_mutex{}; + std::condition_variable cond_var{}; + + friend class document_stream; +}; +#endif // SIMDJSON_THREADS_ENABLED + +/** + * A forward-only stream of documents. + * + * Produced by parser::iterate_many. + * + */ +class document_stream { +public: + /** + * Construct an uninitialized document_stream. + * + * ```c++ + * document_stream docs; + * auto error = parser.iterate_many(json).get(docs); + * ``` + */ + simdjson_inline document_stream() noexcept; + /** Move one document_stream to another. */ + simdjson_inline document_stream(document_stream &&other) noexcept = default; + /** Move one document_stream to another. */ + simdjson_inline document_stream &operator=(document_stream &&other) noexcept = default; + + simdjson_inline ~document_stream() noexcept; + + /** + * Returns the input size in bytes. + */ + inline size_t size_in_bytes() const noexcept; + + /** + * After iterating through the stream, this method + * returns the number of bytes that were not parsed at the end + * of the stream. If truncated_bytes() differs from zero, + * then the input was truncated maybe because incomplete JSON + * documents were found at the end of the stream. You + * may need to process the bytes in the interval [size_in_bytes()-truncated_bytes(), size_in_bytes()). + * + * You should only call truncated_bytes() after streaming through all + * documents, like so: + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto & doc : stream) { + * // do something with doc + * } + * size_t truncated = stream.truncated_bytes(); + * + */ + inline size_t truncated_bytes() const noexcept; + + class iterator { + public: + using value_type = simdjson_result; + using reference = value_type; + + using difference_type = std::ptrdiff_t; + + using iterator_category = std::input_iterator_tag; + + /** + * Default constructor. + */ + simdjson_inline iterator() noexcept; + /** + * Get the current document (or error). + */ + simdjson_inline simdjson_result operator*() noexcept; + /** + * Advance to the next document (prefix). + */ + inline iterator& operator++() noexcept; + /** + * Check if we're at the end yet. + * @param other the end iterator to compare to. + */ + simdjson_inline bool operator!=(const iterator &other) const noexcept; + /** + * @private + * + * Gives the current index in the input document in bytes. + * + * document_stream stream = parser.parse_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * auto doc = *i; + * size_t index = i.current_index(); + * } + * + * This function (current_index()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + */ + simdjson_inline size_t current_index() const noexcept; + + /** + * @private + * + * Gives a view of the current document at the current position. + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * std::string_view v = i.source(); + * } + * + * The returned string_view instance is simply a map to the (unparsed) + * source string: it may thus include white-space characters and all manner + * of padding. + * + * This function (source()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + * + */ + simdjson_inline std::string_view source() const noexcept; + + /** + * Returns error of the stream (if any). + */ + inline error_code error() const noexcept; + + private: + simdjson_inline iterator(document_stream *s, bool finished) noexcept; + /** The document_stream we're iterating through. */ + document_stream* stream; + /** Whether we're finished or not. */ + bool finished; + + friend class document; + friend class document_stream; + friend class json_iterator; + }; + + /** + * Start iterating the documents in the stream. + */ + simdjson_inline iterator begin() noexcept; + /** + * The end of the stream, for iterator comparison purposes. + */ + simdjson_inline iterator end() noexcept; + +private: + + document_stream &operator=(const document_stream &) = delete; // Disallow copying + document_stream(const document_stream &other) = delete; // Disallow copying + + /** + * Construct a document_stream. Does not allocate or parse anything until the iterator is + * used. + * + * @param parser is a reference to the parser instance used to generate this document_stream + * @param buf is the raw byte buffer we need to process + * @param len is the length of the raw byte buffer in bytes + * @param batch_size is the size of the windows (must be strictly greater or equal to the largest JSON document) + */ + simdjson_inline document_stream( + ondemand::parser &parser, + const uint8_t *buf, + size_t len, + size_t batch_size, + bool allow_comma_separated + ) noexcept; + + /** + * Parse the first document in the buffer. Used by begin(), to handle allocation and + * initialization. + */ + inline void start() noexcept; + + /** + * Parse the next document found in the buffer previously given to document_stream. + * + * The content should be a valid JSON document encoded as UTF-8. If there is a + * UTF-8 BOM, the caller is responsible for omitting it, UTF-8 BOM are + * discouraged. + * + * You do NOT need to pre-allocate a parser. This function takes care of + * pre-allocating a capacity defined by the batch_size defined when creating the + * document_stream object. + * + * The function returns simdjson::EMPTY if there is no more data to be parsed. + * + * The function returns simdjson::SUCCESS (as integer = 0) in case of success + * and indicates that the buffer has successfully been parsed to the end. + * Every document it contained has been parsed without error. + * + * The function returns an error code from simdjson/simdjson.h in case of failure + * such as simdjson::CAPACITY, simdjson::MEMALLOC, simdjson::DEPTH_ERROR and so forth; + * the simdjson::error_message function converts these error codes into a string). + * + * You can also check validity by calling parser.is_valid(). The same parser can + * and should be reused for the other documents in the buffer. + */ + inline void next() noexcept; + + /** Move the json_iterator of the document to the location of the next document in the stream. */ + inline void next_document() noexcept; + + /** Get the next document index. */ + inline size_t next_batch_start() const noexcept; + + /** Pass the next batch through stage 1 with the given parser. */ + inline error_code run_stage1(ondemand::parser &p, size_t batch_start) noexcept; + + // Fields + ondemand::parser *parser; + const uint8_t *buf; + size_t len; + size_t batch_size; + bool allow_comma_separated; + /** + * We are going to use just one document instance. The document owns + * the json_iterator. It implies that we only ever pass a reference + * to the document to the users. + */ + document doc{}; + /** The error (or lack thereof) from the current document. */ + error_code error; + size_t batch_start{0}; + size_t doc_index{}; + + #ifdef SIMDJSON_THREADS_ENABLED + /** Indicates whether we use threads. Note that this needs to be a constant during the execution of the parsing. */ + bool use_thread; + + inline void load_from_stage1_thread() noexcept; + + /** Start a thread to run stage 1 on the next batch. */ + inline void start_stage1_thread() noexcept; + + /** Wait for the stage 1 thread to finish and capture the results. */ + inline void finish_stage1_thread() noexcept; + + /** The error returned from the stage 1 thread. */ + error_code stage1_thread_error{UNINITIALIZED}; + /** The thread used to run stage 1 against the next batch in the background. */ + std::unique_ptr worker{new(std::nothrow) stage1_worker()}; + /** + * The parser used to run stage 1 in the background. Will be swapped + * with the regular parser when finished. + */ + ondemand::parser stage1_thread_parser{}; + + friend struct stage1_worker; + #endif // SIMDJSON_THREADS_ENABLED + + friend class parser; + friend class document; + friend class json_iterator; + friend struct simdjson_result; + friend struct internal::simdjson_result_base; +}; // document_stream + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::document_stream &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H +/* end file simdjson/generic/ondemand/document_stream.h for arm64 */ +/* including simdjson/generic/ondemand/field.h for arm64: #include "simdjson/generic/ondemand/field.h" */ +/* begin file simdjson/generic/ondemand/field.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * A JSON field (key/value pair) in an object. + * + * Returned from object iteration. + * + * Extends from std::pair so you can use C++ algorithms that rely on pairs. + */ +class field : public std::pair { +public: + /** + * Create a new invalid field. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline field() noexcept; + + /** + * Get the key as a string_view (for higher speed, consider raw_key). + * We deliberately use a more cumbersome name (unescaped_key) to force users + * to think twice about using it. + * + * This consumes the key: once you have called unescaped_key(), you cannot + * call it again nor can you call key(). + */ + simdjson_inline simdjson_warn_unused simdjson_result unescaped_key(bool allow_replacement) noexcept; + /** + * Get the key as a raw_json_string. Can be used for direct comparison with + * an unescaped C string: e.g., key() == "test". + */ + simdjson_inline raw_json_string key() const noexcept; + /** + * Get the field value. + */ + simdjson_inline ondemand::value &value() & noexcept; + /** + * @overload ondemand::value &ondemand::value() & noexcept + */ + simdjson_inline ondemand::value value() && noexcept; + +protected: + simdjson_inline field(raw_json_string key, ondemand::value &&value) noexcept; + static simdjson_inline simdjson_result start(value_iterator &parent_iter) noexcept; + static simdjson_inline simdjson_result start(const value_iterator &parent_iter, raw_json_string key) noexcept; + friend struct simdjson_result; + friend class object_iterator; +}; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::field &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result unescaped_key(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result key() noexcept; + simdjson_inline simdjson_result value() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_H +/* end file simdjson/generic/ondemand/field.h for arm64 */ +/* including simdjson/generic/ondemand/object.h for arm64: #include "simdjson/generic/ondemand/object.h" */ +/* begin file simdjson/generic/ondemand/object.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +/** + * A forward-only JSON object field iterator. + */ +class object { +public: + /** + * Create a new invalid object. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a + * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an object + * instance: there is no rewind and no invalidation. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + + /** + * Reset the iterator so that we are pointing back at the + * beginning of the object. You should still consume values only once even if you + * can iterate through the object more than once. If you unescape a string within + * the object more than once, you have unsafe code. Note that rewinding an object + * means that you may need to reparse it anew: it is not a free operation. + * + * @returns true if the object contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * This method scans the beginning of the object and checks whether the + * object is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + inline simdjson_result is_empty() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Consumes the object and returns a string_view instance corresponding to the + * object as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + +protected: + /** + * Go to the end of the object, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + static simdjson_inline object resume(const value_iterator &iter) noexcept; + simdjson_inline object(const value_iterator &iter) noexcept; + + simdjson_warn_unused simdjson_inline error_code find_field_raw(const std::string_view key) noexcept; + + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::object &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + inline simdjson_result reset() noexcept; + inline simdjson_result is_empty() noexcept; + inline simdjson_result count_fields() & noexcept; + inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_H +/* end file simdjson/generic/ondemand/object.h for arm64 */ +/* including simdjson/generic/ondemand/object_iterator.h for arm64: #include "simdjson/generic/ondemand/object_iterator.h" */ +/* begin file simdjson/generic/ondemand/object_iterator.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +class object_iterator { +public: + /** + * Create a new invalid object_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object_iterator() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline simdjson_result operator*() noexcept; + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const object_iterator &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const object_iterator &) const noexcept; + // Checks for ']' and ',' + simdjson_inline object_iterator &operator++() noexcept; + +private: + /** + * The underlying JSON iterator. + * + * PERF NOTE: expected to be elided in favor of the parent document: this is set when the object + * is first used, and never changes afterwards. + */ + value_iterator iter{}; + + simdjson_inline object_iterator(const value_iterator &iter) noexcept; + friend struct simdjson_result; + friend class object; +}; + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public arm64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(arm64::ondemand::object_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + // Checks for ']' and ',' + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H +/* end file simdjson/generic/ondemand/object_iterator.h for arm64 */ +/* including simdjson/generic/ondemand/serialization.h for arm64: #include "simdjson/generic/ondemand/serialization.h" */ +/* begin file simdjson/generic/ondemand/serialization.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Create a string-view instance out of a document instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(arm64::ondemand::document& x) noexcept; +/** + * Create a string-view instance out of a value instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. The value must + * not have been accessed previously. It does not + * validate the content. + */ +inline simdjson_result to_json_string(arm64::ondemand::value& x) noexcept; +/** + * Create a string-view instance out of an object instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(arm64::ondemand::object& x) noexcept; +/** + * Create a string-view instance out of an array instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(arm64::ondemand::array& x) noexcept; +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +} // namespace simdjson + +/** + * We want to support argument-dependent lookup (ADL). + * Hence we should define operator<< in the namespace + * where the argument (here value, object, etc.) resides. + * Credit: @madhur4127 + * See https://github.com/simdjson/simdjson/issues/1768 + */ +namespace simdjson { namespace arm64 { namespace ondemand { + +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The element. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::value x); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::array value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::document& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::document_reference& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The object. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::object value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +}}} // namespace simdjson::arm64::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H +/* end file simdjson/generic/ondemand/serialization.h for arm64 */ + +// Inline definitions +/* including simdjson/generic/ondemand/array-inl.h for arm64: #include "simdjson/generic/ondemand/array-inl.h" */ +/* begin file simdjson/generic/ondemand/array-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter->depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the array is first found and the iterator is just past the `{`. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the `,` before the next value (or `]`). In this state, +// depth == iter->depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter->depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter->depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the array iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet element may be missing or not be an +// array--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter->depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between elements, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter->depth == depth, and at_start == false. +// +// ## Terminal State +// +// The terminal state has iter->depth < depth. at_start is always false. +// +// - Finished: When we have reached a `]` or have reported an error, we are finished. We signal this +// by decrementing depth. In this state, iter->depth < depth, at_start == false, and +// error == SUCCESS. +// + +simdjson_inline array::array(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result array::start(value_iterator &iter) noexcept { + // We don't need to know if the array is empty to start iteration, but we do want to know if there + // is an error--thus `simdjson_unused`. + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::start_root(value_iterator &iter) noexcept { + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_root_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::started(value_iterator &iter) noexcept { + bool has_value; + SIMDJSON_TRY(iter.started_array().get(has_value)); + return array(iter); +} + +simdjson_inline simdjson_result array::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return array_iterator(iter); +} +simdjson_inline simdjson_result array::end() noexcept { + return array_iterator(iter); +} +simdjson_inline error_code array::consume() noexcept { + auto error = iter.json_iter().skip_child(iter.depth()-1); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result array::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter._json_iter->unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline simdjson_result array::count_elements() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the array after counting the number of elements. + iter.reset_array(); + return count; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline simdjson_result array::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_array().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +inline simdjson_result array::reset() & noexcept { + return iter.reset_array(); +} + +inline simdjson_result array::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } + + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } + + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" + + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + // Get the child + auto child = at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; + } + + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); + } + return child; +} + +simdjson_inline simdjson_result array::at(size_t index) noexcept { + size_t i = 0; + for (auto value : *this) { + if (i == index) { return value; } + i++; + } + return INDEX_OUT_OF_BOUNDS; +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + arm64::ondemand::array &&value +) noexcept + : implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept + : implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::is_empty() & noexcept { + if (error()) { return error(); } + return first.is_empty(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H +/* end file simdjson/generic/ondemand/array-inl.h for arm64 */ +/* including simdjson/generic/ondemand/array_iterator-inl.h for arm64: #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/array_iterator-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result array_iterator::operator*() noexcept { + if (iter.error()) { iter.abandon(); return iter.error(); } + return value(iter.child()); +} +simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept { + return iter.is_open(); +} +simdjson_inline array_iterator &array_iterator::operator++() noexcept { + error_code error; + // PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here. + // However, it does not seem to make a perf difference, so we add it out of an abundance of caution. + if (( error = iter.error() )) { return *this; } + if (( error = iter.skip_child() )) { return *this; } + if (( error = iter.has_next_element().error() )) { return *this; } + return *this; +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + arm64::ondemand::array_iterator &&value +) noexcept + : arm64::implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : arm64::implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++(first); + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/array_iterator-inl.h for arm64 */ +/* including simdjson/generic/ondemand/document-inl.h for arm64: #include "simdjson/generic/ondemand/document-inl.h" */ +/* begin file simdjson/generic/ondemand/document-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline document::document(ondemand::json_iterator &&_iter) noexcept + : iter{std::forward(_iter)} +{ + logger::log_start_value(iter, "document"); +} + +simdjson_inline document document::start(json_iterator &&iter) noexcept { + return document(std::forward(iter)); +} + +inline void document::rewind() noexcept { + iter.rewind(); +} + +inline std::string document::to_debug_string() noexcept { + return iter.to_string(); +} + +inline simdjson_result document::current_location() const noexcept { + return iter.current_location(); +} + +inline int32_t document::current_depth() const noexcept { + return iter.depth(); +} + +inline bool document::at_end() const noexcept { + return iter.at_end(); +} + + +inline bool document::is_alive() noexcept { + return iter.is_alive(); +} +simdjson_inline value_iterator document::resume_value_iterator() noexcept { + return value_iterator(&iter, 1, iter.root_position()); +} +simdjson_inline value_iterator document::get_root_value_iterator() noexcept { + return resume_value_iterator(); +} +simdjson_inline simdjson_result document::start_or_resume_object() noexcept { + if (iter.at_root()) { + return get_object(); + } else { + return object::resume(resume_value_iterator()); + } +} +simdjson_inline simdjson_result document::get_value() noexcept { + // Make sure we start any arrays or objects before returning, so that start_root_() + // gets called. + iter.assert_at_document_depth(); + switch (*iter.peek()) { + case '[': { + // The following lines check that the document ends with ]. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_array(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + case '{': { + // The following lines would check that the document ends with }. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_object(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + default: + // Unfortunately, scalar documents are a special case in simdjson and they cannot + // be safely converted to value instances. + return SCALAR_DOCUMENT_AS_VALUE; + } +} +simdjson_inline simdjson_result document::get_array() & noexcept { + auto value = get_root_value_iterator(); + return array::start_root(value); +} +simdjson_inline simdjson_result document::get_object() & noexcept { + auto value = get_root_value_iterator(); + return object::start_root(value); +} + +/** + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. We want to disallow trailing + * content. + * Thus, in several implementations below, we pass a 'true' parameter value to + * a get_root_value_iterator() method: this indicates that we disallow trailing content. + */ + +simdjson_inline simdjson_result document::get_uint64() noexcept { + return get_root_value_iterator().get_root_uint64(true); +} +simdjson_inline simdjson_result document::get_uint64_in_string() noexcept { + return get_root_value_iterator().get_root_uint64_in_string(true); +} +simdjson_inline simdjson_result document::get_int64() noexcept { + return get_root_value_iterator().get_root_int64(true); +} +simdjson_inline simdjson_result document::get_int64_in_string() noexcept { + return get_root_value_iterator().get_root_int64_in_string(true); +} +simdjson_inline simdjson_result document::get_double() noexcept { + return get_root_value_iterator().get_root_double(true); +} +simdjson_inline simdjson_result document::get_double_in_string() noexcept { + return get_root_value_iterator().get_root_double_in_string(true); +} +simdjson_inline simdjson_result document::get_string(bool allow_replacement) noexcept { + return get_root_value_iterator().get_root_string(true, allow_replacement); +} +simdjson_inline simdjson_result document::get_wobbly_string() noexcept { + return get_root_value_iterator().get_root_wobbly_string(true); +} +simdjson_inline simdjson_result document::get_raw_json_string() noexcept { + return get_root_value_iterator().get_root_raw_json_string(true); +} +simdjson_inline simdjson_result document::get_bool() noexcept { + return get_root_value_iterator().get_root_bool(true); +} +simdjson_inline simdjson_result document::is_null() noexcept { + return get_root_value_iterator().is_root_null(true); +} + +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_array(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_object(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_double(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_bool(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_value(); } + +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_double(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_uint64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_int64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_bool(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_value(); } + +template simdjson_inline error_code document::get(T &out) & noexcept { + return get().get(out); +} +template simdjson_inline error_code document::get(T &out) && noexcept { + return std::forward(*this).get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document::operator array() & noexcept(false) { return get_array(); } +simdjson_inline document::operator object() & noexcept(false) { return get_object(); } +simdjson_inline document::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document::operator double() noexcept(false) { return get_double(); } +simdjson_inline document::operator std::string_view() noexcept(false) { return get_string(false); } +simdjson_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); } +simdjson_inline document::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document::operator value() noexcept(false) { return get_value(); } + +#endif +simdjson_inline simdjson_result document::count_elements() & noexcept { + auto a = get_array(); + simdjson_result answer = a.count_elements(); + /* If there was an array, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::count_fields() & noexcept { + auto a = get_object(); + simdjson_result answer = a.count_fields(); + /* If there was an object, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::at(size_t index) & noexcept { + auto a = get_array(); + return a.at(index); +} +simdjson_inline simdjson_result document::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result document::end() & noexcept { + return {}; +} + +simdjson_inline simdjson_result document::find_field(std::string_view key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field(const char *key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field_unordered(std::string_view key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::find_field_unordered(const char *key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::operator[](std::string_view key) & noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result document::operator[](const char *key) & noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline error_code document::consume() noexcept { + auto error = iter.skip_child(0); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result document::raw_json() noexcept { + auto _iter = get_root_value_iterator(); + const uint8_t * starting_point{_iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter.unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result document::type() noexcept { + return get_root_value_iterator().type(); +} + +simdjson_inline simdjson_result document::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool document::is_negative() noexcept { + return get_root_value_iterator().is_root_negative(); +} + +simdjson_inline simdjson_result document::is_integer() noexcept { + return get_root_value_iterator().is_root_integer(true); +} + +simdjson_inline simdjson_result document::get_number_type() noexcept { + return get_root_value_iterator().get_root_number_type(true); +} + +simdjson_inline simdjson_result document::get_number() noexcept { + return get_root_value_iterator().get_root_number(true); +} + + +simdjson_inline simdjson_result document::raw_json_token() noexcept { + auto _iter = get_root_value_iterator(); + return std::string_view(reinterpret_cast(_iter.peek_start()), _iter.peek_start_length()); +} + +simdjson_inline simdjson_result document::at_pointer(std::string_view json_pointer) noexcept { + rewind(); // Rewind the document each time at_pointer is called + if (json_pointer.empty()) { + return this->get_value(); + } + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + arm64::ondemand::document &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base( + error + ) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template +simdjson_inline simdjson_result simdjson_result::get() & noexcept { + if (error()) { return error(); } + return first.get(); +} +template +simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first).get(); +} +template +simdjson_inline error_code simdjson_result::get(T &out) & noexcept { + if (error()) { return error(); } + return first.get(out); +} +template +simdjson_inline error_code simdjson_result::get(T &out) && noexcept { + if (error()) { return error(); } + return std::forward(first).get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() & noexcept = delete; +template<> simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first); +} +template<> simdjson_inline error_code simdjson_result::get(arm64::ondemand::document &out) & noexcept = delete; +template<> simdjson_inline error_code simdjson_result::get(arm64::ondemand::document &out) && noexcept { + if (error()) { return error(); } + out = std::forward(first); + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} + +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} + + +simdjson_inline bool simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} + +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} + +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} + +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} + + +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator arm64::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator arm64::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator arm64::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator arm64::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline bool simdjson_result::at_end() const noexcept { + if (error()) { return error(); } + return first.at_end(); +} + + +simdjson_inline int32_t simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline document_reference::document_reference() noexcept : doc{nullptr} {} +simdjson_inline document_reference::document_reference(document &d) noexcept : doc(&d) {} +simdjson_inline void document_reference::rewind() noexcept { doc->rewind(); } +simdjson_inline simdjson_result document_reference::get_array() & noexcept { return doc->get_array(); } +simdjson_inline simdjson_result document_reference::get_object() & noexcept { return doc->get_object(); } +/** + * The document_reference instances are used primarily/solely for streams of JSON + * documents. + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. + * + * However, for streams of JSON documents, we want to be able to start from + * "321" "321" "321" + * and parse it successfully as a stream of JSON documents, calling get_uint64_in_string() + * successfully each time. + * + * To achieve this result, we pass a 'false' to a get_root_value_iterator() method: + * this indicates that we allow trailing content. + */ +simdjson_inline simdjson_result document_reference::get_uint64() noexcept { return doc->get_root_value_iterator().get_root_uint64(false); } +simdjson_inline simdjson_result document_reference::get_uint64_in_string() noexcept { return doc->get_root_value_iterator().get_root_uint64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_int64() noexcept { return doc->get_root_value_iterator().get_root_int64(false); } +simdjson_inline simdjson_result document_reference::get_int64_in_string() noexcept { return doc->get_root_value_iterator().get_root_int64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_double() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_double_in_string() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_string(bool allow_replacement) noexcept { return doc->get_root_value_iterator().get_root_string(false, allow_replacement); } +simdjson_inline simdjson_result document_reference::get_wobbly_string() noexcept { return doc->get_root_value_iterator().get_root_wobbly_string(false); } +simdjson_inline simdjson_result document_reference::get_raw_json_string() noexcept { return doc->get_root_value_iterator().get_root_raw_json_string(false); } +simdjson_inline simdjson_result document_reference::get_bool() noexcept { return doc->get_root_value_iterator().get_root_bool(false); } +simdjson_inline simdjson_result document_reference::get_value() noexcept { return doc->get_value(); } +simdjson_inline simdjson_result document_reference::is_null() noexcept { return doc->get_root_value_iterator().is_root_null(false); } + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document_reference::operator array() & noexcept(false) { return array(*doc); } +simdjson_inline document_reference::operator object() & noexcept(false) { return object(*doc); } +simdjson_inline document_reference::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document_reference::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document_reference::operator double() noexcept(false) { return get_double(); } +simdjson_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); } +simdjson_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); } +simdjson_inline document_reference::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document_reference::operator value() noexcept(false) { return value(*doc); } +#endif +simdjson_inline simdjson_result document_reference::count_elements() & noexcept { return doc->count_elements(); } +simdjson_inline simdjson_result document_reference::count_fields() & noexcept { return doc->count_fields(); } +simdjson_inline simdjson_result document_reference::at(size_t index) & noexcept { return doc->at(index); } +simdjson_inline simdjson_result document_reference::begin() & noexcept { return doc->begin(); } +simdjson_inline simdjson_result document_reference::end() & noexcept { return doc->end(); } +simdjson_inline simdjson_result document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::type() noexcept { return doc->type(); } +simdjson_inline simdjson_result document_reference::is_scalar() noexcept { return doc->is_scalar(); } +simdjson_inline simdjson_result document_reference::current_location() noexcept { return doc->current_location(); } +simdjson_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); } +simdjson_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); } +simdjson_inline simdjson_result document_reference::is_integer() noexcept { return doc->get_root_value_iterator().is_root_integer(false); } +simdjson_inline simdjson_result document_reference::get_number_type() noexcept { return doc->get_root_value_iterator().get_root_number_type(false); } +simdjson_inline simdjson_result document_reference::get_number() noexcept { return doc->get_root_value_iterator().get_root_number(false); } +simdjson_inline simdjson_result document_reference::raw_json_token() noexcept { return doc->raw_json_token(); } +simdjson_inline simdjson_result document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); } +simdjson_inline simdjson_result document_reference::raw_json() noexcept { return doc->raw_json();} +simdjson_inline document_reference::operator document&() const noexcept { return *doc; } + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + + + +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(arm64::ondemand::document_reference value, error_code error) + noexcept : implementation_simdjson_result_base(std::forward(value), error) {} + + +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator arm64::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator arm64::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator arm64::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator arm64::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H +/* end file simdjson/generic/ondemand/document-inl.h for arm64 */ +/* including simdjson/generic/ondemand/document_stream-inl.h for arm64: #include "simdjson/generic/ondemand/document_stream-inl.h" */ +/* begin file simdjson/generic/ondemand/document_stream-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void stage1_worker::finish() { + // After calling "run" someone would call finish() to wait + // for the end of the processing. + // This function will wait until either the thread has done + // the processing or, else, the destructor has been called. + std::unique_lock lock(locking_mutex); + cond_var.wait(lock, [this]{return has_work == false;}); +} + +inline stage1_worker::~stage1_worker() { + // The thread may never outlive the stage1_worker instance + // and will always be stopped/joined before the stage1_worker + // instance is gone. + stop_thread(); +} + +inline void stage1_worker::start_thread() { + std::unique_lock lock(locking_mutex); + if(thread.joinable()) { + return; // This should never happen but we never want to create more than one thread. + } + thread = std::thread([this]{ + while(true) { + std::unique_lock thread_lock(locking_mutex); + // We wait for either "run" or "stop_thread" to be called. + cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); + // If, for some reason, the stop_thread() method was called (i.e., the + // destructor of stage1_worker is called, then we want to immediately destroy + // the thread (and not do any more processing). + if(!can_work) { + break; + } + this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, + this->_next_batch_start); + this->has_work = false; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify "finish" + thread_lock.unlock(); + } + } + ); +} + + +inline void stage1_worker::stop_thread() { + std::unique_lock lock(locking_mutex); + // We have to make sure that all locks can be released. + can_work = false; + has_work = false; + cond_var.notify_all(); + lock.unlock(); + if(thread.joinable()) { + thread.join(); + } +} + +inline void stage1_worker::run(document_stream * ds, parser * stage1, size_t next_batch_start) { + std::unique_lock lock(locking_mutex); + owner = ds; + _next_batch_start = next_batch_start; + stage1_thread_parser = stage1; + has_work = true; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify the thread lock that we have work + lock.unlock(); +} + +#endif // SIMDJSON_THREADS_ENABLED + +simdjson_inline document_stream::document_stream( + ondemand::parser &_parser, + const uint8_t *_buf, + size_t _len, + size_t _batch_size, + bool _allow_comma_separated +) noexcept + : parser{&_parser}, + buf{_buf}, + len{_len}, + batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, + allow_comma_separated{_allow_comma_separated}, + error{SUCCESS} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change + #endif +{ +#ifdef SIMDJSON_THREADS_ENABLED + if(worker.get() == nullptr) { + error = MEMALLOC; + } +#endif +} + +simdjson_inline document_stream::document_stream() noexcept + : parser{nullptr}, + buf{nullptr}, + len{0}, + batch_size{0}, + allow_comma_separated{false}, + error{UNINITIALIZED} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(false) + #endif +{ +} + +simdjson_inline document_stream::~document_stream() noexcept +{ + #ifdef SIMDJSON_THREADS_ENABLED + worker.reset(); + #endif +} + +inline size_t document_stream::size_in_bytes() const noexcept { + return len; +} + +inline size_t document_stream::truncated_bytes() const noexcept { + if(error == CAPACITY) { return len - batch_start; } + return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; +} + +simdjson_inline document_stream::iterator::iterator() noexcept + : stream{nullptr}, finished{true} { +} + +simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept + : stream{_stream}, finished{is_end} { +} + +simdjson_inline simdjson_result document_stream::iterator::operator*() noexcept { + //if(stream->error) { return stream->error; } + return simdjson_result(stream->doc, stream->error); +} + +simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { + // If there is an error, then we want the iterator + // to be finished, no matter what. (E.g., we do not + // keep generating documents with errors, or go beyond + // a document with errors.) + // + // Users do not have to call "operator*()" when they use operator++, + // so we need to end the stream in the operator++ function. + // + // Note that setting finished = true is essential otherwise + // we would enter an infinite loop. + if (stream->error) { finished = true; } + // Note that stream->error() is guarded against error conditions + // (it will immediately return if stream->error casts to false). + // In effect, this next function does nothing when (stream->error) + // is true (hence the risk of an infinite loop). + stream->next(); + // If that was the last document, we're finished. + // It is the only type of error we do not want to appear + // in operator*. + if (stream->error == EMPTY) { finished = true; } + // If we had any other kind of error (not EMPTY) then we want + // to pass it along to the operator* and we cannot mark the result + // as "finished" just yet. + return *this; +} + +simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { + return finished != other.finished; +} + +simdjson_inline document_stream::iterator document_stream::begin() noexcept { + start(); + // If there are no documents, we're finished. + return iterator(this, error == EMPTY); +} + +simdjson_inline document_stream::iterator document_stream::end() noexcept { + return iterator(this, true); +} + +inline void document_stream::start() noexcept { + if (error) { return; } + error = parser->allocate(batch_size); + if (error) { return; } + // Always run the first stage 1 parse immediately + batch_start = 0; + error = run_stage1(*parser, batch_start); + while(error == EMPTY) { + // In exceptional cases, we may start with an empty block + batch_start = next_batch_start(); + if (batch_start >= len) { return; } + error = run_stage1(*parser, batch_start); + } + if (error) { return; } + doc_index = batch_start; + doc = document(json_iterator(&buf[batch_start], parser)); + doc.iter._streaming = true; + + #ifdef SIMDJSON_THREADS_ENABLED + if (use_thread && next_batch_start() < len) { + // Kick off the first thread on next batch if needed + error = stage1_thread_parser.allocate(batch_size); + if (error) { return; } + worker->start_thread(); + start_stage1_thread(); + if (error) { return; } + } + #endif // SIMDJSON_THREADS_ENABLED +} + +inline void document_stream::next() noexcept { + // We always enter at once once in an error condition. + if (error) { return; } + next_document(); + if (error) { return; } + auto cur_struct_index = doc.iter._root - parser->implementation->structural_indexes.get(); + doc_index = batch_start + parser->implementation->structural_indexes[cur_struct_index]; + + // Check if at end of structural indexes (i.e. at end of batch) + if(cur_struct_index >= static_cast(parser->implementation->n_structural_indexes)) { + error = EMPTY; + // Load another batch (if available) + while (error == EMPTY) { + batch_start = next_batch_start(); + if (batch_start >= len) { break; } + #ifdef SIMDJSON_THREADS_ENABLED + if(use_thread) { + load_from_stage1_thread(); + } else { + error = run_stage1(*parser, batch_start); + } + #else + error = run_stage1(*parser, batch_start); + #endif + /** + * Whenever we move to another window, we need to update all pointers to make + * it appear as if the input buffer started at the beginning of the window. + * + * Take this input: + * + * {"z":5} {"1":1,"2":2,"4":4} [7, 10, 9] [15, 11, 12, 13] [154, 110, 112, 1311] + * + * Say you process the following window... + * + * '{"z":5} {"1":1,"2":2,"4":4} [7, 10, 9]' + * + * When you do so, the json_iterator has a pointer at the beginning of the memory region + * (pointing at the beginning of '{"z"...'. + * + * When you move to the window that starts at... + * + * '[7, 10, 9] [15, 11, 12, 13] ... + * + * then it is not sufficient to just run stage 1. You also need to re-anchor the + * json_iterator so that it believes we are starting at '[7, 10, 9]...'. + * + * Under the DOM front-end, this gets done automatically because the parser owns + * the pointer the data, and when you call stage1 and then stage2 on the same + * parser, then stage2 will run on the pointer acquired by stage1. + * + * That is, stage1 calls "this->buf = _buf" so the parser remembers the buffer that + * we used. But json_iterator has no callback when stage1 is called on the parser. + * In fact, I think that the parser is unaware of json_iterator. + * + * + * So we need to re-anchor the json_iterator after each call to stage 1 so that + * all of the pointers are in sync. + */ + doc.iter = json_iterator(&buf[batch_start], parser); + doc.iter._streaming = true; + /** + * End of resync. + */ + + if (error) { continue; } // If the error was EMPTY, we may want to load another batch. + doc_index = batch_start; + } + } +} + +inline void document_stream::next_document() noexcept { + // Go to next place where depth=0 (document depth) + error = doc.iter.skip_child(0); + if (error) { return; } + // Always set depth=1 at the start of document + doc.iter._depth = 1; + // consume comma if comma separated is allowed + if (allow_comma_separated) { doc.iter.consume_character(','); } + // Resets the string buffer at the beginning, thus invalidating the strings. + doc.iter._string_buf_loc = parser->string_buf.get(); + doc.iter._root = doc.iter.position(); +} + +inline size_t document_stream::next_batch_start() const noexcept { + return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; +} + +inline error_code document_stream::run_stage1(ondemand::parser &p, size_t _batch_start) noexcept { + // This code only updates the structural index in the parser, it does not update any json_iterator + // instance. + size_t remaining = len - _batch_start; + if (remaining <= batch_size) { + return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); + } else { + return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); + } +} + +simdjson_inline size_t document_stream::iterator::current_index() const noexcept { + return stream->doc_index; +} + +simdjson_inline std::string_view document_stream::iterator::source() const noexcept { + auto depth = stream->doc.iter.depth(); + auto cur_struct_index = stream->doc.iter._root - stream->parser->implementation->structural_indexes.get(); + + // If at root, process the first token to determine if scalar value + if (stream->doc.iter.at_root()) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': // Depth=1 already at start of document + break; + case '}': case ']': + depth--; + break; + default: // Scalar value document + // TODO: Remove any trailing whitespaces + // This returns a string spanning from start of value to the beginning of the next document (excluded) + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[++cur_struct_index] - current_index() - 1); + } + cur_struct_index++; + } + + while (cur_struct_index <= static_cast(stream->parser->implementation->n_structural_indexes)) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': + depth++; + break; + case '}': case ']': + depth--; + break; + } + if (depth == 0) { break; } + cur_struct_index++; + } + + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);; +} + +inline error_code document_stream::iterator::error() const noexcept { + return stream->error; +} + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void document_stream::load_from_stage1_thread() noexcept { + worker->finish(); + // Swap to the parser that was loaded up in the thread. Make sure the parser has + // enough memory to swap to, as well. + std::swap(stage1_thread_parser,*parser); + error = stage1_thread_error; + if (error) { return; } + + // If there's anything left, start the stage 1 thread! + if (next_batch_start() < len) { + start_stage1_thread(); + } +} + +inline void document_stream::start_stage1_thread() noexcept { + // we call the thread on a lambda that will update + // this->stage1_thread_error + // there is only one thread that may write to this value + // TODO this is NOT exception-safe. + this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error + size_t _next_batch_start = this->next_batch_start(); + + worker->run(this, & this->stage1_thread_parser, _next_batch_start); +} + +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result::simdjson_result( + arm64::ondemand::document_stream &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} + +} + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H +/* end file simdjson/generic/ondemand/document_stream-inl.h for arm64 */ +/* including simdjson/generic/ondemand/field-inl.h for arm64: #include "simdjson/generic/ondemand/field-inl.h" */ +/* begin file simdjson/generic/ondemand/field-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +// clang 6 doesn't think the default constructor can be noexcept, so we make it explicit +simdjson_inline field::field() noexcept : std::pair() {} + +simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept + : std::pair(key, std::forward(value)) +{ +} + +simdjson_inline simdjson_result field::start(value_iterator &parent_iter) noexcept { + raw_json_string key; + SIMDJSON_TRY( parent_iter.field_key().get(key) ); + SIMDJSON_TRY( parent_iter.field_value() ); + return field::start(parent_iter, key); +} + +simdjson_inline simdjson_result field::start(const value_iterator &parent_iter, raw_json_string key) noexcept { + return field(key, parent_iter.child()); +} + +simdjson_inline simdjson_warn_unused simdjson_result field::unescaped_key(bool allow_replacement) noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us. + simdjson_result answer = first.unescape(second.iter.json_iter(), allow_replacement); + first.consume(); + return answer; +} + +simdjson_inline raw_json_string field::key() const noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us. + return first; +} + +simdjson_inline value &field::value() & noexcept { + return second; +} + +simdjson_inline value field::value() && noexcept { + return std::forward(*this).second; +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + arm64::ondemand::field &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::key() noexcept { + if (error()) { return error(); } + return first.key(); +} +simdjson_inline simdjson_result simdjson_result::unescaped_key(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.unescaped_key(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::value() noexcept { + if (error()) { return error(); } + return std::move(first.value()); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H +/* end file simdjson/generic/ondemand/field-inl.h for arm64 */ +/* including simdjson/generic/ondemand/json_iterator-inl.h for arm64: #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/json_iterator-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline json_iterator::json_iterator(json_iterator &&other) noexcept + : token(std::forward(other.token)), + parser{other.parser}, + _string_buf_loc{other._string_buf_loc}, + error{other.error}, + _depth{other._depth}, + _root{other._root}, + _streaming{other._streaming} +{ + other.parser = nullptr; +} +simdjson_inline json_iterator &json_iterator::operator=(json_iterator &&other) noexcept { + token = other.token; + parser = other.parser; + _string_buf_loc = other._string_buf_loc; + error = other.error; + _depth = other._depth; + _root = other._root; + _streaming = other._streaming; + other.parser = nullptr; + return *this; +} + +simdjson_inline json_iterator::json_iterator(const uint8_t *buf, ondemand::parser *_parser) noexcept + : token(buf, &_parser->implementation->structural_indexes[0]), + parser{_parser}, + _string_buf_loc{parser->string_buf.get()}, + _depth{1}, + _root{parser->implementation->structural_indexes.get()}, + _streaming{false} + +{ + logger::log_headers(); +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif +} + +inline void json_iterator::rewind() noexcept { + token.set_position( root_position() ); + logger::log_headers(); // We start again + _string_buf_loc = parser->string_buf.get(); + _depth = 1; +} + +inline bool json_iterator::balanced() const noexcept { + token_iterator ti(token); + int32_t count{0}; + ti.set_position( root_position() ); + while(ti.peek() <= peek_last()) { + switch (*ti.return_current_and_advance()) + { + case '[': case '{': + count++; + break; + case ']': case '}': + count--; + break; + default: + break; + } + } + return count == 0; +} + + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and parent_depth, which is a desired effect. The warning does not show up if the +// skip_child() function is not marked inline). +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept { + if (depth() <= parent_depth) { return SUCCESS; } + switch (*return_current_and_advance()) { + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + + // For the first open array/object in a value, we've already incremented depth, so keep it the same + // We never stop at colon, but if we did, it wouldn't affect depth + case '[': case '{': case ':': + logger::log_start_value(*this, "skip"); + break; + // If there is a comma, we have just finished a value in an array/object, and need to get back in + case ',': + logger::log_value(*this, "skip"); + break; + // ] or } means we just finished a value and need to jump out of the array/object + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } +#if SIMDJSON_CHECK_EOF + // If there are no more tokens, the parent is incomplete. + if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + break; + case '"': + if(*peek() == ':') { + // We are at a key!!! + // This might happen if you just started an object and you skip it immediately. + // Performance note: it would be nice to get rid of this check as it is somewhat + // expensive. + // https://github.com/simdjson/simdjson/issues/1742 + logger::log_value(*this, "key"); + return_current_and_advance(); // eat up the ':' + break; // important!!! + } + simdjson_fallthrough; + // Anything else must be a scalar value + default: + // For the first scalar, we will have incremented depth already, so we decrement it here. + logger::log_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + } + + // Now that we've considered the first value, we only increment/decrement for arrays/objects + while (position() < end_position()) { + switch (*return_current_and_advance()) { + case '[': case '{': + logger::log_start_value(*this, "skip"); + _depth++; + break; + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + default: + logger::log_value(*this, "skip", ""); + break; + } + } + + return report_error(TAPE_ERROR, "not enough close braces"); +} + +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool json_iterator::at_root() const noexcept { + return position() == root_position(); +} + +simdjson_inline bool json_iterator::is_single_token() const noexcept { + return parser->implementation->n_structural_indexes == 1; +} + +simdjson_inline bool json_iterator::streaming() const noexcept { + return _streaming; +} + +simdjson_inline token_position json_iterator::root_position() const noexcept { + return _root; +} + +simdjson_inline void json_iterator::assert_at_document_depth() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +} + +simdjson_inline void json_iterator::assert_at_root() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + // Under Visual Studio, the next SIMDJSON_ASSUME fails with: the argument + // has side effects that will be discarded. + SIMDJSON_ASSUME( token.position() == _root ); +#endif +} + +simdjson_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept { + assert_valid_position(token._position + required_tokens - 1); +} + +simdjson_inline void json_iterator::assert_valid_position(token_position position) const noexcept { +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME( position >= &parser->implementation->structural_indexes[0] ); + SIMDJSON_ASSUME( position < &parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] ); +#endif +} + +simdjson_inline bool json_iterator::at_end() const noexcept { + return position() == end_position(); +} +simdjson_inline token_position json_iterator::end_position() const noexcept { + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + return &parser->implementation->structural_indexes[n_structural_indexes]; +} + +inline std::string json_iterator::to_string() const noexcept { + if( !is_alive() ) { return "dead json_iterator instance"; } + const char * current_structural = reinterpret_cast(token.peek()); + return std::string("json_iterator [ depth : ") + std::to_string(_depth) + + std::string(", structural : '") + std::string(current_structural,1) + + std::string("', offset : ") + std::to_string(token.current_offset()) + + std::string("', error : ") + error_message(error) + + std::string(" ]"); +} + +inline simdjson_result json_iterator::current_location() const noexcept { + if (!is_alive()) { // Unrecoverable error + if (!at_root()) { + return reinterpret_cast(token.peek(-1)); + } else { + return reinterpret_cast(token.peek()); + } + } + if (at_end()) { + return OUT_OF_BOUNDS; + } + return reinterpret_cast(token.peek()); +} + +simdjson_inline bool json_iterator::is_alive() const noexcept { + return parser; +} + +simdjson_inline void json_iterator::abandon() noexcept { + parser = nullptr; + _depth = 0; +} + +simdjson_inline const uint8_t *json_iterator::return_current_and_advance() noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif // SIMDJSON_CHECK_EOF + return token.return_current_and_advance(); +} + +simdjson_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept { + // deliberately done without safety guard: + return token.peek(); +} + +simdjson_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // SIMDJSON_CHECK_EOF + return token.peek(delta); +} + +simdjson_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // #if SIMDJSON_CHECK_EOF + return token.peek_length(delta); +} + +simdjson_inline const uint8_t *json_iterator::peek(token_position position) const noexcept { + // todo: currently we require end-of-string buffering, but the following + // assert_valid_position should be turned on if/when we lift that condition. + // assert_valid_position(position); + // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF + // is ON by default, we have no choice but to disable it for real with a comment. + return token.peek(position); +} + +simdjson_inline uint32_t json_iterator::peek_length(token_position position) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_valid_position(position); +#endif // SIMDJSON_CHECK_EOF + return token.peek_length(position); +} + +simdjson_inline token_position json_iterator::last_position() const noexcept { + // The following line fails under some compilers... + // SIMDJSON_ASSUME(parser->implementation->n_structural_indexes > 0); + // since it has side-effects. + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + SIMDJSON_ASSUME(n_structural_indexes > 0); + return &parser->implementation->structural_indexes[n_structural_indexes - 1]; +} +simdjson_inline const uint8_t *json_iterator::peek_last() const noexcept { + return token.peek(last_position()); +} + +simdjson_inline void json_iterator::ascend_to(depth_t parent_depth) noexcept { + SIMDJSON_ASSUME(parent_depth >= 0 && parent_depth < INT32_MAX - 1); + SIMDJSON_ASSUME(_depth == parent_depth + 1); + _depth = parent_depth; +} + +simdjson_inline void json_iterator::descend_to(depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); + _depth = child_depth; +} + +simdjson_inline depth_t json_iterator::depth() const noexcept { + return _depth; +} + +simdjson_inline uint8_t *&json_iterator::string_buf_loc() noexcept { + return _string_buf_loc; +} + +simdjson_inline error_code json_iterator::report_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error != SUCCESS && _error != UNINITIALIZED && _error != INCORRECT_TYPE && _error != NO_SUCH_FIELD); + logger::log_error(*this, message); + error = _error; + return error; +} + +simdjson_inline token_position json_iterator::position() const noexcept { + return token.position(); +} + +simdjson_inline simdjson_result json_iterator::unescape(raw_json_string in, bool allow_replacement) noexcept { + return parser->unescape(in, _string_buf_loc, allow_replacement); +} + +simdjson_inline simdjson_result json_iterator::unescape_wobbly(raw_json_string in) noexcept { + return parser->unescape_wobbly(in, _string_buf_loc); +} + +simdjson_inline void json_iterator::reenter_child(token_position position, depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); +#if SIMDJSON_DEVELOPMENT_CHECKS +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME(size_t(child_depth) < parser->max_depth()); + SIMDJSON_ASSUME(position >= parser->start_positions[child_depth]); +#endif +#endif + token.set_position(position); + _depth = child_depth; +} + +simdjson_inline error_code json_iterator::consume_character(char c) noexcept { + if (*peek() == c) { + return_current_and_advance(); + return SUCCESS; + } + return TAPE_ERROR; +} + +#if SIMDJSON_DEVELOPMENT_CHECKS + +simdjson_inline token_position json_iterator::start_position(depth_t depth) const noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + return size_t(depth) < parser->max_depth() ? parser->start_positions[depth] : 0; +} + +simdjson_inline void json_iterator::set_start_position(depth_t depth, token_position position) noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + if(size_t(depth) < parser->max_depth()) { parser->start_positions[depth] = position; } +} + +#endif + + +simdjson_inline error_code json_iterator::optional_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error == INCORRECT_TYPE || _error == NO_SUCH_FIELD); + logger::log_error(*this, message); + return _error; +} + + +simdjson_warn_unused simdjson_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept { + // This function is not expected to be called in performance-sensitive settings. + // Let us guard against silly cases: + if((N < max_len) || (N == 0)) { return false; } + // Copy to the buffer. + std::memcpy(tmpbuf, json, max_len); + if(N > max_len) { // We pad whatever remains with ' '. + std::memset(tmpbuf + max_len, ' ', N - max_len); + } + return true; +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(arm64::ondemand::json_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/json_iterator-inl.h for arm64 */ +/* including simdjson/generic/ondemand/json_type-inl.h for arm64: #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* begin file simdjson/generic/ondemand/json_type-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept { + switch (type) { + case json_type::array: out << "array"; break; + case json_type::object: out << "object"; break; + case json_type::number: out << "number"; break; + case json_type::string: out << "string"; break; + case json_type::boolean: out << "boolean"; break; + case json_type::null: out << "null"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false) { + return out << type.value(); +} +#endif + + + +simdjson_inline number_type number::get_number_type() const noexcept { + return type; +} + +simdjson_inline bool number::is_uint64() const noexcept { + return get_number_type() == number_type::unsigned_integer; +} + +simdjson_inline uint64_t number::get_uint64() const noexcept { + return payload.unsigned_integer; +} + +simdjson_inline number::operator uint64_t() const noexcept { + return get_uint64(); +} + + +simdjson_inline bool number::is_int64() const noexcept { + return get_number_type() == number_type::signed_integer; +} + +simdjson_inline int64_t number::get_int64() const noexcept { + return payload.signed_integer; +} + +simdjson_inline number::operator int64_t() const noexcept { + return get_int64(); +} + +simdjson_inline bool number::is_double() const noexcept { + return get_number_type() == number_type::floating_point_number; +} + +simdjson_inline double number::get_double() const noexcept { + return payload.floating_point_number; +} + +simdjson_inline number::operator double() const noexcept { + return get_double(); +} + +simdjson_inline double number::as_double() const noexcept { + if(is_double()) { + return payload.floating_point_number; + } + if(is_int64()) { + return double(payload.signed_integer); + } + return double(payload.unsigned_integer); +} + +simdjson_inline void number::append_s64(int64_t value) noexcept { + payload.signed_integer = value; + type = number_type::signed_integer; +} + +simdjson_inline void number::append_u64(uint64_t value) noexcept { + payload.unsigned_integer = value; + type = number_type::unsigned_integer; +} + +simdjson_inline void number::append_double(double value) noexcept { + payload.floating_point_number = value; + type = number_type::floating_point_number; +} + +simdjson_inline void number::skip_double() noexcept { + type = number_type::floating_point_number; +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(arm64::ondemand::json_type &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H +/* end file simdjson/generic/ondemand/json_type-inl.h for arm64 */ +/* including simdjson/generic/ondemand/logger-inl.h for arm64: #include "simdjson/generic/ondemand/logger-inl.h" */ +/* begin file simdjson/generic/ondemand/logger-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace arm64 { +namespace ondemand { +namespace logger { + +static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +static constexpr const int LOG_EVENT_LEN = 20; +static constexpr const int LOG_BUFFER_LEN = 30; +static constexpr const int LOG_SMALL_BUFFER_LEN = 10; +static int log_depth = 0; // Not threadsafe. Log only. + +// Helper to turn unprintable or newline characters into spaces +static inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } +} + +template +static inline std::string string_format(const std::string& format, const Args&... args) +{ + SIMDJSON_PUSH_DISABLE_ALL_WARNINGS + int size_s = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; + auto size = static_cast(size_s); + if (size <= 0) return std::string(); + std::unique_ptr buf(new char[size]); + std::snprintf(buf.get(), size, format.c_str(), args...); + SIMDJSON_POP_DISABLE_WARNINGS + return std::string(buf.get(), buf.get() + size - 1); +} + +static inline log_level get_log_level_from_env() +{ + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + char *lvl = getenv("SIMDJSON_LOG_LEVEL"); + SIMDJSON_POP_DISABLE_WARNINGS + if (lvl && simdjson_strcasecmp(lvl, "ERROR") == 0) { return log_level::error; } + return log_level::info; +} + +static inline log_level log_threshold() +{ + static log_level threshold = get_log_level_from_env(); + return threshold; +} + +static inline bool should_log(log_level level) +{ + return level >= log_threshold(); +} + +inline void log_event(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} + +inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "", type, detail, log_level::info); +} +inline void log_value(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} + +inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "+", type, detail, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} +inline void log_start_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_line(iter, "+", type, "", delta, depth_delta, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} + +inline void log_end_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + if (LOG_ENABLED) { log_depth--; } + log_line(iter, "-", type, "", delta, depth_delta, log_level::info); +} + +inline void log_error(const json_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_line(iter, "ERROR: ", error, detail, delta, depth_delta, log_level::error); +} +inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail) noexcept { + log_line(iter, index, depth, "ERROR: ", error, detail, log_level::error); +} + +inline void log_event(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_event(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_value(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_value(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_start_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_start_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_end_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_end_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_error(const value_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_error(iter.json_iter(), error, detail, delta, depth_delta); +} + +inline void log_headers() noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(log_level::info))) { + // Technically a static variable is not thread-safe, but if you are using threads and logging... well... + static bool displayed_hint{false}; + log_depth = 0; + printf("\n"); + if (!displayed_hint) { + // We only print this helpful header once. + printf("# Logging provides the depth and position of the iterator user-visible steps:\n"); + printf("# +array says 'this is where we were when we discovered the start array'\n"); + printf( + "# -array says 'this is where we were when we ended the array'\n"); + printf("# skip says 'this is a structural or value I am skipping'\n"); + printf("# +/-skip says 'this is a start/end array or object I am skipping'\n"); + printf("#\n"); + printf("# The indentation of the terms (array, string,...) indicates the depth,\n"); + printf("# in addition to the depth being displayed.\n"); + printf("#\n"); + printf("# Every token in the document has a single depth determined by the tokens before it,\n"); + printf("# and is not affected by what the token actually is.\n"); + printf("#\n"); + printf("# Not all structural elements are presented as tokens in the logs.\n"); + printf("#\n"); + printf("# We never give control to the user within an empty array or an empty object.\n"); + printf("#\n"); + printf("# Inside an array, having a depth greater than the array's depth means that\n"); + printf("# we are pointing inside a value.\n"); + printf("# Having a depth equal to the array means that we are pointing right before a value.\n"); + printf("# Having a depth smaller than the array means that we have moved beyond the array.\n"); + displayed_hint = true; + } + printf("\n"); + printf("| %-*s ", LOG_EVENT_LEN, "Event"); + printf("| %-*s ", LOG_BUFFER_LEN, "Buffer"); + printf("| %-*s ", LOG_SMALL_BUFFER_LEN, "Next"); + // printf("| %-*s ", 5, "Next#"); + printf("| %-*s ", 5, "Depth"); + printf("| Detail "); + printf("|\n"); + + printf("|%.*s", LOG_EVENT_LEN + 2, DASHES); + printf("|%.*s", LOG_BUFFER_LEN + 2, DASHES); + printf("|%.*s", LOG_SMALL_BUFFER_LEN + 2, DASHES); + // printf("|%.*s", 5+2, DASHES); + printf("|%.*s", 5 + 2, DASHES); + printf("|--------"); + printf("|\n"); + fflush(stdout); + } + } +} + +template +inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, log_level level, Args&&... args) noexcept { + log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail, level, std::forward(args)...); +} + +template +inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, log_level level, Args&&... args) noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(level))) { + const int indent = depth * 2; + const auto buf = iter.token.buf; + auto msg = string_format(title, std::forward(args)...); + printf("| %*s%s%-*s ", indent, "", title_prefix, + LOG_EVENT_LEN - indent - int(strlen(title_prefix)), msg.c_str()); + { + // Print the current structural. + printf("| "); + // Before we begin, the index might point right before the document. + // This could be unsafe, see https://github.com/simdjson/simdjson/discussions/1938 + if (index < iter._root) { + printf("%*s", LOG_BUFFER_LEN, ""); + } else { + auto current_structural = &buf[*index]; + for (int i = 0; i < LOG_BUFFER_LEN; i++) { + printf("%c", printable_char(current_structural[i])); + } + } + printf(" "); + } + { + // Print the next structural. + printf("| "); + auto next_structural = &buf[*(index + 1)]; + for (int i = 0; i < LOG_SMALL_BUFFER_LEN; i++) { + printf("%c", printable_char(next_structural[i])); + } + printf(" "); + } + // printf("| %5u ", *(index+1)); + printf("| %5i ", depth); + printf("| %6.*s ", int(detail.size()), detail.data()); + printf("|\n"); + fflush(stdout); + } + } +} + +} // namespace logger +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H +/* end file simdjson/generic/ondemand/logger-inl.h for arm64 */ +/* including simdjson/generic/ondemand/object-inl.h for arm64: #include "simdjson/generic/ondemand/object-inl.h" */ +/* begin file simdjson/generic/ondemand/object-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) & noexcept { + return find_field_unordered(key); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) && noexcept { + return std::forward(*this).find_field_unordered(key); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} + +simdjson_inline simdjson_result object::start(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_object().error() ); + return object(iter); +} +simdjson_inline simdjson_result object::start_root(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_root_object().error() ); + return object(iter); +} +simdjson_inline error_code object::consume() noexcept { + if(iter.is_at_key()) { + /** + * whenever you are pointing at a key, calling skip_child() is + * unsafe because you will hit a string and you will assume that + * it is string value, and this mistake will lead you to make bad + * depth computation. + */ + /** + * We want to 'consume' the key. We could really + * just do _json_iter->return_current_and_advance(); at this + * point, but, for clarity, we will use the high-level API to + * eat the key. We assume that the compiler optimizes away + * most of the work. + */ + simdjson_unused raw_json_string actual_key; + auto error = iter.field_key().get(actual_key); + if (error) { iter.abandon(); return error; }; + // Let us move to the value while we are at it. + if ((error = iter.field_value())) { iter.abandon(); return error; } + } + auto error_skip = iter.json_iter().skip_child(iter.depth()-1); + if(error_skip) { iter.abandon(); } + return error_skip; +} + +simdjson_inline simdjson_result object::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + const uint8_t * final_point{iter._json_iter->peek()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result object::started(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.started_object().error() ); + return object(iter); +} + +simdjson_inline object object::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline object::object(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result object::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return object_iterator(iter); +} +simdjson_inline simdjson_result object::end() noexcept { + return object_iterator(iter); +} + +inline simdjson_result object::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; + + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); + } + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = find_field(unescaped); // Take note find_field does not unescape keys when matching + } else { + child = find_field(key); + } + if(child.error()) { + return child; // we do not continue if there was an error + } + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); + } + return child; +} + +simdjson_inline simdjson_result object::count_fields() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the object after counting the number of elements. + iter.reset_object(); + return count; +} + +simdjson_inline simdjson_result object::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_object().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +simdjson_inline simdjson_result object::reset() & noexcept { + return iter.reset_object(); +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(arm64::ondemand::object &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first)[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +inline simdjson_result simdjson_result::reset() noexcept { + if (error()) { return error(); } + return first.reset(); +} + +inline simdjson_result simdjson_result::is_empty() noexcept { + if (error()) { return error(); } + return first.is_empty(); +} + +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H +/* end file simdjson/generic/ondemand/object-inl.h for arm64 */ +/* including simdjson/generic/ondemand/object_iterator-inl.h for arm64: #include "simdjson/generic/ondemand/object_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/object_iterator-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +// +// object_iterator +// + +simdjson_inline object_iterator::object_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result object_iterator::operator*() noexcept { + error_code error = iter.error(); + if (error) { iter.abandon(); return error; } + auto result = field::start(iter); + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (result.error()) { iter.abandon(); } + return result; +} +simdjson_inline bool object_iterator::operator==(const object_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool object_iterator::operator!=(const object_iterator &) const noexcept { + return iter.is_open(); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline object_iterator &object_iterator::operator++() noexcept { + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (!iter.is_open()) { return *this; } // Iterator will be released if there is an error + + simdjson_unused error_code error; + if ((error = iter.skip_child() )) { return *this; } + + simdjson_unused bool has_value; + if ((error = iter.has_next_field().get(has_value) )) { return *this; }; + return *this; +} +SIMDJSON_POP_DISABLE_WARNINGS + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter.depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the object is first found and the iterator is just past the {. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the , or } before the next value. In this state, +// depth == iter.depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter.depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter.depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the object iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet field may be missing or not be an +// object--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter.depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between fields, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter.depth == depth, and at_start == false. +// +// Errors that occur while reading a field to give to the user (such as when the key is not a +// string or the field is missing a colon) are yielded immediately. Depth is then decremented, +// moving to the Finished state without transitioning through an Error state at all. +// +// ## Terminal State +// +// The terminal state has iter.depth < depth. at_start is always false. +// +// - Finished: When we have reached a }, we are finished. We signal this by decrementing depth. +// In this state, iter.depth < depth, at_start == false, and error == SUCCESS. +// + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + arm64::ondemand::object_iterator &&value +) noexcept + : implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +// Checks for ']' and ',' +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++first; + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/object_iterator-inl.h for arm64 */ +/* including simdjson/generic/ondemand/parser-inl.h for arm64: #include "simdjson/generic/ondemand/parser-inl.h" */ +/* begin file simdjson/generic/ondemand/parser-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string_view.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/dom/base.h" // for MINIMAL_DOCUMENT_CAPACITY */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity} { +} + +simdjson_warn_unused simdjson_inline error_code parser::allocate(size_t new_capacity, size_t new_max_depth) noexcept { + if (new_capacity > max_capacity()) { return CAPACITY; } + if (string_buf && new_capacity == capacity() && new_max_depth == max_depth()) { return SUCCESS; } + + // string_capacity copied from document::allocate + _capacity = 0; + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset(new (std::nothrow) uint8_t[string_capacity]); +#if SIMDJSON_DEVELOPMENT_CHECKS + start_positions.reset(new (std::nothrow) token_position[new_max_depth]); +#endif + if (implementation) { + SIMDJSON_TRY( implementation->set_capacity(new_capacity) ); + SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) ); + } else { + SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) ); + } + _capacity = new_capacity; + _max_depth = new_max_depth; + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length() || !string_buf) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return document::start({ reinterpret_cast(json.data()), this }); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const char *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const uint8_t *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(std::string_view json, size_t allocated) & noexcept { + return iterate(padded_string_view(json, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const std::string &json) & noexcept { + return iterate(padded_string_view(json)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + padded_string_view json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + const padded_string &json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate_raw(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length()) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return json_iterator(reinterpret_cast(json.data()), this); +} + +inline simdjson_result parser::iterate_many(const uint8_t *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + if(allow_comma_separated && batch_size < len) { batch_size = len; } + return document_stream(*this, buf, len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const char *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(reinterpret_cast(buf), len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const std::string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const padded_string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} + +simdjson_inline size_t parser::capacity() const noexcept { + return _capacity; +} +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; +} +simdjson_inline size_t parser::max_depth() const noexcept { + return _max_depth; +} + +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity < dom::MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = dom::MINIMAL_DOCUMENT_CAPACITY; + } +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement) const noexcept { + uint8_t *end = implementation->parse_string(in.buf, dst, allow_replacement); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept { + uint8_t *end = implementation->parse_wobbly_string(in.buf, dst); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(arm64::ondemand::parser &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H +/* end file simdjson/generic/ondemand/parser-inl.h for arm64 */ +/* including simdjson/generic/ondemand/raw_json_string-inl.h for arm64: #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +namespace arm64 { +namespace ondemand { + +simdjson_inline raw_json_string::raw_json_string(const uint8_t * _buf) noexcept : buf{_buf} {} + +simdjson_inline const char * raw_json_string::raw() const noexcept { return reinterpret_cast(buf); } + + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(std::string_view target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;pos < target.size() && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;pos < target.size();pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(const char* target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;target[pos] && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;target[pos];pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept { + // If we are going to call memcmp, then we must know something about the length of the raw_json_string. + return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); +} + +simdjson_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + if(target.size() <= SIMDJSON_PADDING) { + return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); + } + const char * r{raw()}; + size_t pos{0}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(std::string_view target) const noexcept { + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(const char * target) const noexcept { + // Assumptions: 'target' does not contain unescaped quote characters, is null terminated and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(const char* target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept { + return a.unsafe_is_equal(c); +} + +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept { + return a == c; +} + +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept { + return !(a == c); +} + +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept { + return !(a == c); +} + + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape(json_iterator &iter, bool allow_replacement) const noexcept { + return iter.unescape(*this, allow_replacement); +} + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape_wobbly(json_iterator &iter) const noexcept { + return iter.unescape_wobbly(*this); +} + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &out, const raw_json_string &str) noexcept { + bool in_escape = false; + const char *s = str.raw(); + while (true) { + switch (*s) { + case '\\': in_escape = !in_escape; break; + case '"': if (in_escape) { in_escape = false; } else { return out; } break; + default: if (in_escape) { in_escape = false; } + } + out << *s; + s++; + } +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(arm64::ondemand::raw_json_string &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::raw() const noexcept { + if (error()) { return error(); } + return first.raw(); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape(arm64::ondemand::json_iterator &iter, bool allow_replacement) const noexcept { + if (error()) { return error(); } + return first.unescape(iter, allow_replacement); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape_wobbly(arm64::ondemand::json_iterator &iter) const noexcept { + if (error()) { return error(); } + return first.unescape_wobbly(iter); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H +/* end file simdjson/generic/ondemand/raw_json_string-inl.h for arm64 */ +/* including simdjson/generic/ondemand/serialization-inl.h for arm64: #include "simdjson/generic/ondemand/serialization-inl.h" */ +/* begin file simdjson/generic/ondemand/serialization-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/serialization.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +inline std::string_view trim(const std::string_view str) noexcept { + // We can almost surely do better by rolling our own find_first_not_of function. + size_t first = str.find_first_not_of(" \t\n\r"); + // If we have the empty string (just white space), then no trimming is possible, and + // we return the empty string_view. + if (std::string_view::npos == first) { return std::string_view(); } + size_t last = str.find_last_not_of(" \t\n\r"); + return str.substr(first, (last - first + 1)); +} + + +inline simdjson_result to_json_string(arm64::ondemand::document& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(arm64::ondemand::document_reference& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(arm64::ondemand::value& x) noexcept { + /** + * If we somehow receive a value that has already been consumed, + * then the following code could be in trouble. E.g., we create + * an array as needed, but if an array was already created, then + * it could be bad. + */ + using namespace arm64::ondemand; + arm64::ondemand::json_type t; + auto error = x.type().get(t); + if(error != SUCCESS) { return error; } + switch (t) + { + case json_type::array: + { + arm64::ondemand::array array; + error = x.get_array().get(array); + if(error) { return error; } + return to_json_string(array); + } + case json_type::object: + { + arm64::ondemand::object object; + error = x.get_object().get(object); + if(error) { return error; } + return to_json_string(object); + } + default: + return trim(x.raw_json_token()); + } +} + +inline simdjson_result to_json_string(arm64::ondemand::object& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(arm64::ondemand::array& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} +} // namespace simdjson + +namespace simdjson { namespace arm64 { namespace ondemand { + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::document_reference& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::arm64::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif +}}} // namespace simdjson::arm64::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H +/* end file simdjson/generic/ondemand/serialization-inl.h for arm64 */ +/* including simdjson/generic/ondemand/token_iterator-inl.h for arm64: #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/token_iterator-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline token_iterator::token_iterator( + const uint8_t *_buf, + token_position position +) noexcept : buf{_buf}, _position{position} +{ +} + +simdjson_inline uint32_t token_iterator::current_offset() const noexcept { + return *(_position); +} + + +simdjson_inline const uint8_t *token_iterator::return_current_and_advance() noexcept { + return &buf[*(_position++)]; +} + +simdjson_inline const uint8_t *token_iterator::peek(token_position position) const noexcept { + return &buf[*position]; +} +simdjson_inline uint32_t token_iterator::peek_index(token_position position) const noexcept { + return *position; +} +simdjson_inline uint32_t token_iterator::peek_length(token_position position) const noexcept { + return *(position+1) - *position; +} + +simdjson_inline const uint8_t *token_iterator::peek(int32_t delta) const noexcept { + return &buf[*(_position+delta)]; +} +simdjson_inline uint32_t token_iterator::peek_index(int32_t delta) const noexcept { + return *(_position+delta); +} +simdjson_inline uint32_t token_iterator::peek_length(int32_t delta) const noexcept { + return *(_position+delta+1) - *(_position+delta); +} + +simdjson_inline token_position token_iterator::position() const noexcept { + return _position; +} +simdjson_inline void token_iterator::set_position(token_position target_position) noexcept { + _position = target_position; +} + +simdjson_inline bool token_iterator::operator==(const token_iterator &other) const noexcept { + return _position == other._position; +} +simdjson_inline bool token_iterator::operator!=(const token_iterator &other) const noexcept { + return _position != other._position; +} +simdjson_inline bool token_iterator::operator>(const token_iterator &other) const noexcept { + return _position > other._position; +} +simdjson_inline bool token_iterator::operator>=(const token_iterator &other) const noexcept { + return _position >= other._position; +} +simdjson_inline bool token_iterator::operator<(const token_iterator &other) const noexcept { + return _position < other._position; +} +simdjson_inline bool token_iterator::operator<=(const token_iterator &other) const noexcept { + return _position <= other._position; +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(arm64::ondemand::token_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/token_iterator-inl.h for arm64 */ +/* including simdjson/generic/ondemand/value-inl.h for arm64: #include "simdjson/generic/ondemand/value-inl.h" */ +/* begin file simdjson/generic/ondemand/value-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline value::value(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} +simdjson_inline value value::start(const value_iterator &iter) noexcept { + return iter; +} +simdjson_inline value value::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline simdjson_result value::get_array() noexcept { + return array::start(iter); +} +simdjson_inline simdjson_result value::get_object() noexcept { + return object::start(iter); +} +simdjson_inline simdjson_result value::start_or_resume_object() noexcept { + if (iter.at_start()) { + return get_object(); + } else { + return object::resume(iter); + } +} + +simdjson_inline simdjson_result value::get_raw_json_string() noexcept { + return iter.get_raw_json_string(); +} +simdjson_inline simdjson_result value::get_string(bool allow_replacement) noexcept { + return iter.get_string(allow_replacement); +} +simdjson_inline simdjson_result value::get_wobbly_string() noexcept { + return iter.get_wobbly_string(); +} +simdjson_inline simdjson_result value::get_double() noexcept { + return iter.get_double(); +} +simdjson_inline simdjson_result value::get_double_in_string() noexcept { + return iter.get_double_in_string(); +} +simdjson_inline simdjson_result value::get_uint64() noexcept { + return iter.get_uint64(); +} +simdjson_inline simdjson_result value::get_uint64_in_string() noexcept { + return iter.get_uint64_in_string(); +} +simdjson_inline simdjson_result value::get_int64() noexcept { + return iter.get_int64(); +} +simdjson_inline simdjson_result value::get_int64_in_string() noexcept { + return iter.get_int64_in_string(); +} +simdjson_inline simdjson_result value::get_bool() noexcept { + return iter.get_bool(); +} +simdjson_inline simdjson_result value::is_null() noexcept { + return iter.is_null(); +} +template<> simdjson_inline simdjson_result value::get() noexcept { return get_array(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_object(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_number(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_double(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_bool(); } + +template simdjson_inline error_code value::get(T &out) noexcept { + return get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline value::operator array() noexcept(false) { + return get_array(); +} +simdjson_inline value::operator object() noexcept(false) { + return get_object(); +} +simdjson_inline value::operator uint64_t() noexcept(false) { + return get_uint64(); +} +simdjson_inline value::operator int64_t() noexcept(false) { + return get_int64(); +} +simdjson_inline value::operator double() noexcept(false) { + return get_double(); +} +simdjson_inline value::operator std::string_view() noexcept(false) { + return get_string(false); +} +simdjson_inline value::operator raw_json_string() noexcept(false) { + return get_raw_json_string(); +} +simdjson_inline value::operator bool() noexcept(false) { + return get_bool(); +} +#endif + +simdjson_inline simdjson_result value::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result value::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result value::count_elements() & noexcept { + simdjson_result answer; + auto a = get_array(); + answer = a.count_elements(); + // count_elements leaves you pointing inside the array, at the first element. + // We need to move back so that the user can create a new array (which requires that + // we point at '['). + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::count_fields() & noexcept { + simdjson_result answer; + auto a = get_object(); + answer = a.count_fields(); + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::at(size_t index) noexcept { + auto a = get_array(); + return a.at(index); +} + +simdjson_inline simdjson_result value::find_field(std::string_view key) noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result value::find_field(const char *key) noexcept { + return start_or_resume_object().find_field(key); +} + +simdjson_inline simdjson_result value::find_field_unordered(std::string_view key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result value::find_field_unordered(const char *key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} + +simdjson_inline simdjson_result value::operator[](std::string_view key) noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result value::operator[](const char *key) noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline simdjson_result value::type() noexcept { + return iter.type(); +} + +simdjson_inline simdjson_result value::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool value::is_negative() noexcept { + return iter.is_negative(); +} + +simdjson_inline simdjson_result value::is_integer() noexcept { + return iter.is_integer(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number_type() noexcept { + return iter.get_number_type(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number() noexcept { + return iter.get_number(); +} + +simdjson_inline std::string_view value::raw_json_token() noexcept { + return std::string_view(reinterpret_cast(iter.peek_start()), iter.peek_start_length()); +} + +simdjson_inline simdjson_result value::current_location() noexcept { + return iter.json_iter().current_location(); +} + +simdjson_inline int32_t value::current_depth() const noexcept{ + return iter.json_iter().depth(); +} + +simdjson_inline simdjson_result value::at_pointer(std::string_view json_pointer) noexcept { + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + arm64::ondemand::value &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + if (error()) { return error(); } + return {}; +} + +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} + +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) noexcept { + if (error()) { return error(); } + return first[key]; +} + +simdjson_inline simdjson_result simdjson_result::get_array() noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return first.get(); +} +template simdjson_inline error_code simdjson_result::get(T &out) noexcept { + if (error()) { return error(); } + return first.get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return std::move(first); +} +template<> simdjson_inline error_code simdjson_result::get(arm64::ondemand::value &out) noexcept { + if (error()) { return error(); } + out = first; + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator arm64::ondemand::array() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator arm64::ondemand::object() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator arm64::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H +/* end file simdjson/generic/ondemand/value-inl.h for arm64 */ +/* including simdjson/generic/ondemand/value_iterator-inl.h for arm64: #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/value_iterator-inl.h for arm64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/atomparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace arm64 { +namespace ondemand { + +simdjson_inline value_iterator::value_iterator( + json_iterator *json_iter, + depth_t depth, + token_position start_position +) noexcept : _json_iter{json_iter}, _depth{depth}, _start_position{start_position} +{ +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_root_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_object() noexcept { + assert_at_container_start(); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + if (*_json_iter->peek() == '}') { + logger::log_value(*_json_iter, "empty object"); + _json_iter->return_current_and_advance(); + end_container(); + return false; + } + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_object() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // object: e.g., `{"a":2} foo }`. Users concerned with garbage content should + // call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != '}') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing } at end"); + } + // If the last character is } *and* the first gibberish character is also '}' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == '}') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed object. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_object() noexcept { + auto error = check_root_object(); + if(error) { return error; } + return started_object(); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::end_container() noexcept { +#if SIMDJSON_CHECK_EOF + if (depth() > 1 && at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing parent ] or }"); } + // if (depth() <= 1 && !at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + _json_iter->ascend_to(depth()-1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_field() noexcept { + assert_at_next(); + + // It's illegal to call this unless there are more tokens: anything that ends in } or ] is + // obligated to verify there are more tokens if they are not the top level. + switch (*_json_iter->return_current_and_advance()) { + case '}': + logger::log_end_value(*_json_iter, "object"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between object fields"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_raw(const std::string_view key) noexcept { + error_code error; + bool has_value; + // + // Initially, the object can be in one of a few different places: + // + // 1. The start of the object, at the first field: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + if (at_first_field()) { + has_value = true; + + // + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + return false; + + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + if ((error = skip_child() )) { abandon(); return error; } + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + while (has_value) { + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + //if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); // Skip the value entirely + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + + // If the loop ended, we're out of fields to look at. + return false; +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_unordered_raw(const std::string_view key) noexcept { + /** + * When find_field_unordered_raw is called, we can either be pointing at the + * first key, pointing outside (at the closing brace) or if a key was matched + * we can be either pointing right afterthe ':' right before the value (that we need skip), + * or we may have consumed the value and we might be at a comma or at the + * final brace (ready for a call to has_next_field()). + */ + error_code error; + bool has_value; + + // First, we scan from that point to the end. + // If we don't find a match, we may loop back around, and scan from the beginning to that point. + token_position search_start = _json_iter->position(); + + // We want to know whether we need to go back to the beginning. + bool at_first = at_first_field(); + /////////////// + // Initially, the object can be in one of a few different places: + // + // 1. At the first key: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + // + if (at_first) { + has_value = true; + + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { + +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + SIMDJSON_TRY(reset_object().get(has_value)); + at_first = true; + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + // If someone queried a key but they not did access the value, then we are left pointing + // at the ':' and we need to move forward through the value... If the value was + // processed then skip_child() does not move the iterator (but may adjust the depth). + if ((error = skip_child() )) { abandon(); return error; } + search_start = _json_iter->position(); + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + + // After initial processing, we will be in one of two states: + // + // ``` + // // At the beginning of a field + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // At the end of the object + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // ``` + // + // Next, we find a match starting from the current position. + while (has_value) { + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + // Performance note: it maybe wasteful to rewind to the beginning when there might be + // no other query following. Indeed, it would require reskipping the whole object. + // Instead, you can just stay where you are. If there is a new query, there is always time + // to rewind. + if(at_first) { return false; } + + // If we reach the end without finding a match, search the rest of the fields starting at the + // beginning of the object. + // (We have already run through the object before, so we've already validated its structure. We + // don't check errors in this bit.) + SIMDJSON_TRY(reset_object().get(has_value)); + while (true) { + SIMDJSON_ASSUME(has_value); // we should reach search_start before ever reaching the end of the object + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + error = field_key().get(actual_key); SIMDJSON_ASSUME(!error); + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + error = field_value(); SIMDJSON_ASSUME(!error); + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // If we reached the end of the key-value pair we started from, then we know + // that the key is not there so we return false. We are either right before + // the next comma or the final brace. + if(_json_iter->position() == search_start) { return false; } + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + error = has_next_field().get(has_value); SIMDJSON_ASSUME(!error); + // If we make the mistake of exiting here, then we could be left pointing at a key + // in the middle of an object. That's not an allowable state. + } + // If the loop ended, we're out of fields to look at. The program should + // never reach this point. + return false; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::field_key() noexcept { + assert_at_next(); + + const uint8_t *key = _json_iter->return_current_and_advance(); + if (*(key++) != '"') { return report_error(TAPE_ERROR, "Object key is not a string"); } + return raw_json_string(key); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::field_value() noexcept { + assert_at_next(); + + if (*_json_iter->return_current_and_advance() != ':') { return report_error(TAPE_ERROR, "Missing colon in object field"); } + _json_iter->descend_to(depth()+1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_root_array(); +} + +inline std::string value_iterator::to_string() const noexcept { + auto answer = std::string("value_iterator [ depth : ") + std::to_string(_depth) + std::string(", "); + if(_json_iter != nullptr) { answer += _json_iter->to_string(); } + answer += std::string(" ]"); + return answer; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_array() noexcept { + assert_at_container_start(); + if (*_json_iter->peek() == ']') { + logger::log_value(*_json_iter, "empty array"); + _json_iter->return_current_and_advance(); + SIMDJSON_TRY( end_container() ); + return false; + } + _json_iter->descend_to(depth()+1); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_array() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // array: e.g., `[1, 2] foo]`. Users concerned with garbage content should + // also call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != ']') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing ] at end"); + } + // If the last character is ] *and* the first gibberish character is also ']' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == ']') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed array. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_array() noexcept { + auto error = check_root_array(); + if (error) { return error; } + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_element() noexcept { + assert_at_next(); + + logger::log_event(*this, "has_next_element"); + switch (*_json_iter->return_current_and_advance()) { + case ']': + logger::log_end_value(*_json_iter, "array"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + _json_iter->descend_to(depth()+1); + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between array elements"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_bool(const uint8_t *json) const noexcept { + auto not_true = atomparsing::str4ncmp(json, "true"); + auto not_false = atomparsing::str4ncmp(json, "fals") | (json[4] ^ 'e'); + bool error = (not_true && not_false) || jsoncharutils::is_not_structural_or_whitespace(json[not_true ? 5 : 4]); + if (error) { return incorrect_type_error("Not a boolean"); } + return simdjson_result(!not_true); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_null(const uint8_t *json) const noexcept { + bool is_null_string = !atomparsing::str4ncmp(json, "null") && jsoncharutils::is_structural_or_whitespace(json[4]); + // if we start with 'n', we must be a null + if(!is_null_string && json[0]=='n') { return incorrect_type_error("Not a null but starts with n"); } + return is_null_string; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_string(bool allow_replacement) noexcept { + return get_raw_json_string().unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_wobbly_string() noexcept { + return get_raw_json_string().unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_raw_json_string() noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64() noexcept { + auto result = numberparsing::parse_unsigned(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64_in_string() noexcept { + auto result = numberparsing::parse_unsigned_in_string(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64() noexcept { + auto result = numberparsing::parse_integer(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64_in_string() noexcept { + auto result = numberparsing::parse_integer_in_string(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double() noexcept { + auto result = numberparsing::parse_double(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double_in_string() noexcept { + auto result = numberparsing::parse_double_in_string(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_bool() noexcept { + auto result = parse_bool(peek_non_root_scalar("bool")); + if(result.error() == SUCCESS) { advance_non_root_scalar("bool"); } + return result; +} +simdjson_inline simdjson_result value_iterator::is_null() noexcept { + bool is_null_value; + SIMDJSON_TRY(parse_null(peek_non_root_scalar("null")).get(is_null_value)); + if(is_null_value) { advance_non_root_scalar("null"); } + return is_null_value; +} +simdjson_inline bool value_iterator::is_negative() noexcept { + return numberparsing::is_negative(peek_non_root_scalar("numbersign")); +} +simdjson_inline bool value_iterator::is_root_negative() noexcept { + return numberparsing::is_negative(peek_root_scalar("numbersign")); +} +simdjson_inline simdjson_result value_iterator::is_integer() noexcept { + return numberparsing::is_integer(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number_type() noexcept { + return numberparsing::get_number_type(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number() noexcept { + number num; + error_code error = numberparsing::parse_number(peek_non_root_scalar("number"), num); + if(error) { return error; } + return num; +} + +simdjson_inline simdjson_result value_iterator::is_root_integer(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("is_root_integer"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + return false; // if there are more than 20 characters, it cannot be represented as an integer. + } + auto answer = numberparsing::is_integer(tmpbuf); + // If the parsing was a success, we must still check that it is + // a single scalar. Note that we parse first because of cases like '[]' where + // getting TRAILING_CONTENT is wrong. + if(check_trailing && (answer.error() == SUCCESS) && (!_json_iter->is_single_token())) { return TRAILING_CONTENT; } + return answer; +} + +simdjson_inline simdjson_result value_iterator::get_root_number_type(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto answer = numberparsing::get_number_type(tmpbuf); + if (check_trailing && (answer.error() == SUCCESS) && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + return answer; +} +simdjson_inline simdjson_result value_iterator::get_root_number(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + number num; + error_code error = numberparsing::parse_number(tmpbuf, num); + if(error) { return error; } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("number"); + return num; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_string(bool check_trailing, bool allow_replacement) noexcept { + return get_root_raw_json_string(check_trailing).unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_wobbly_string(bool check_trailing) noexcept { + return get_root_raw_json_string(check_trailing).unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_raw_json_string(bool check_trailing) noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_bool(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("bool"); + uint8_t tmpbuf[5+1+1]; // +1 for null termination + tmpbuf[5+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 5+1)) { return incorrect_type_error("Not a boolean"); } + auto result = parse_bool(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("bool"); + } + return result; +} +simdjson_inline simdjson_result value_iterator::is_root_null(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("null"); + bool result = (max_len >= 4 && !atomparsing::str4ncmp(json, "null") && + (max_len == 4 || jsoncharutils::is_structural_or_whitespace(json[4]))); + if(result) { // we have something that looks like a null. + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("null"); + } + return result; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::skip_child() noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth >= _depth ); + + return _json_iter->skip_child(depth()); +} + +simdjson_inline value_iterator value_iterator::child() const noexcept { + assert_at_child(); + return { _json_iter, depth()+1, _json_iter->token.position() }; +} + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and iterator depth, which is a desired effect. It does not happen if is_open is +// marked non-inline. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline bool value_iterator::is_open() const noexcept { + return _json_iter->depth() >= depth(); +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool value_iterator::at_end() const noexcept { + return _json_iter->at_end(); +} + +simdjson_inline bool value_iterator::at_start() const noexcept { + return _json_iter->token.position() == start_position(); +} + +simdjson_inline bool value_iterator::at_first_field() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + return _json_iter->token.position() == start_position() + 1; +} + +simdjson_inline void value_iterator::abandon() noexcept { + _json_iter->abandon(); +} + +simdjson_warn_unused simdjson_inline depth_t value_iterator::depth() const noexcept { + return _depth; +} +simdjson_warn_unused simdjson_inline error_code value_iterator::error() const noexcept { + return _json_iter->error; +} +simdjson_warn_unused simdjson_inline uint8_t *&value_iterator::string_buf_loc() noexcept { + return _json_iter->string_buf_loc(); +} +simdjson_warn_unused simdjson_inline const json_iterator &value_iterator::json_iter() const noexcept { + return *_json_iter; +} +simdjson_warn_unused simdjson_inline json_iterator &value_iterator::json_iter() noexcept { + return *_json_iter; +} + +simdjson_inline const uint8_t *value_iterator::peek_start() const noexcept { + return _json_iter->peek(start_position()); +} +simdjson_inline uint32_t value_iterator::peek_start_length() const noexcept { + return _json_iter->peek_length(start_position()); +} + +simdjson_inline const uint8_t *value_iterator::peek_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return peek_start(); } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return; } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept { + logger::log_start_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + const uint8_t *json; + if (!is_at_start()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + json = peek_start(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + } else { + assert_at_start(); + /** + * We should be prudent. Let us peek. If it is not the right type, we + * return an error. Only once we have determined that we have the right + * type are we allowed to advance! + */ + json = _json_iter->peek(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + _json_iter->return_current_and_advance(); + } + + + return SUCCESS; +} + + +simdjson_inline const uint8_t *value_iterator::peek_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_root(); + return _json_iter->peek(); +} +simdjson_inline const uint8_t *value_iterator::peek_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_non_root_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_root(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} +simdjson_inline void value_iterator::advance_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_non_root_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::incorrect_type_error(const char *message) const noexcept { + logger::log_error(*_json_iter, start_position(), depth(), message); + return INCORRECT_TYPE; +} + +simdjson_inline bool value_iterator::is_at_start() const noexcept { + return position() == start_position(); +} + +simdjson_inline bool value_iterator::is_at_key() const noexcept { + // Keys are at the same depth as the object. + // Note here that we could be safer and check that we are within an object, + // but we do not. + return _depth == _json_iter->_depth && *_json_iter->peek() == '"'; +} + +simdjson_inline bool value_iterator::is_at_iterator_start() const noexcept { + // We can legitimately be either at the first value ([1]), or after the array if it's empty ([]). + auto delta = position() - start_position(); + return delta == 1 || delta == 2; +} + +inline void value_iterator::assert_at_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_container_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position + 1 ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_next() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +simdjson_inline void value_iterator::move_at_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position); +} + +simdjson_inline void value_iterator::move_at_container_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position + 1); +} + +simdjson_inline simdjson_result value_iterator::reset_array() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_array(); +} + +simdjson_inline simdjson_result value_iterator::reset_object() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_object(); +} + +inline void value_iterator::assert_at_child() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth + 1 ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_root() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth == 1 ); +} + +inline void value_iterator::assert_at_non_root_start() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth > 1 ); +} + +inline void value_iterator::assert_is_valid() const noexcept { + SIMDJSON_ASSUME( _json_iter != nullptr ); +} + +simdjson_inline bool value_iterator::is_valid() const noexcept { + return _json_iter != nullptr; +} + +simdjson_inline simdjson_result value_iterator::type() const noexcept { + switch (*peek_start()) { + case '{': + return json_type::object; + case '[': + return json_type::array; + case '"': + return json_type::string; + case 'n': + return json_type::null; + case 't': case 'f': + return json_type::boolean; + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return json_type::number; + default: + return TAPE_ERROR; + } +} + +simdjson_inline token_position value_iterator::start_position() const noexcept { + return _start_position; +} + +simdjson_inline token_position value_iterator::position() const noexcept { + return _json_iter->position(); +} + +simdjson_inline token_position value_iterator::end_position() const noexcept { + return _json_iter->end_position(); +} + +simdjson_inline token_position value_iterator::last_position() const noexcept { + return _json_iter->last_position(); +} + +simdjson_inline error_code value_iterator::report_error(error_code error, const char *message) noexcept { + return _json_iter->report_error(error, message); +} + +} // namespace ondemand +} // namespace arm64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(arm64::ondemand::value_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/value_iterator-inl.h for arm64 */ +/* end file simdjson/generic/ondemand/amalgamated.h for arm64 */ +/* including simdjson/arm64/end.h: #include "simdjson/arm64/end.h" */ +/* begin file simdjson/arm64/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/arm64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#undef SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT +/* undefining SIMDJSON_IMPLEMENTATION from "arm64" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/arm64/end.h */ + +#endif // SIMDJSON_ARM64_ONDEMAND_H +/* end file simdjson/arm64/ondemand.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(fallback) +/* including simdjson/fallback/ondemand.h: #include "simdjson/fallback/ondemand.h" */ +/* begin file simdjson/fallback/ondemand.h */ +#ifndef SIMDJSON_FALLBACK_ONDEMAND_H +#define SIMDJSON_FALLBACK_ONDEMAND_H + +/* including simdjson/fallback/begin.h: #include "simdjson/fallback/begin.h" */ +/* begin file simdjson/fallback/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "fallback" */ +#define SIMDJSON_IMPLEMENTATION fallback +/* including simdjson/fallback/base.h: #include "simdjson/fallback/base.h" */ +/* begin file simdjson/fallback/base.h */ +#ifndef SIMDJSON_FALLBACK_BASE_H +#define SIMDJSON_FALLBACK_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Fallback implementation (runs on any machine). + */ +namespace fallback { + +class implementation; + +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_BASE_H +/* end file simdjson/fallback/base.h */ +/* including simdjson/fallback/bitmanipulation.h: #include "simdjson/fallback/bitmanipulation.h" */ +/* begin file simdjson/fallback/bitmanipulation.h */ +#ifndef SIMDJSON_FALLBACK_BITMANIPULATION_H +#define SIMDJSON_FALLBACK_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { + +#if defined(_MSC_VER) && !defined(_M_ARM64) && !defined(_M_X64) +static inline unsigned char _BitScanForward64(unsigned long* ret, uint64_t x) { + unsigned long x0 = (unsigned long)x, top, bottom; + _BitScanForward(&top, (unsigned long)(x >> 32)); + _BitScanForward(&bottom, x0); + *ret = x0 ? bottom : 32 + top; + return x != 0; +} +static unsigned char _BitScanReverse64(unsigned long* ret, uint64_t x) { + unsigned long x1 = (unsigned long)(x >> 32), top, bottom; + _BitScanReverse(&top, x1); + _BitScanReverse(&bottom, (unsigned long)x); + *ret = x1 ? top + 32 : bottom; + return x != 0; +} +#endif + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#ifdef _MSC_VER + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// _MSC_VER +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_BITMANIPULATION_H +/* end file simdjson/fallback/bitmanipulation.h */ +/* including simdjson/fallback/stringparsing_defs.h: #include "simdjson/fallback/stringparsing_defs.h" */ +/* begin file simdjson/fallback/stringparsing_defs.h */ +#ifndef SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H +#define SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace { + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 1; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return c == '"'; } + simdjson_inline bool has_backslash() { return c == '\\'; } + simdjson_inline int quote_index() { return c == '"' ? 0 : 1; } + simdjson_inline int backslash_index() { return c == '\\' ? 0 : 1; } + + uint8_t c; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // store to dest unconditionally - we can overwrite the bits we don't like later + dst[0] = src[0]; + return { src[0] }; +} + +} // unnamed namespace +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_FALLBACK_STRINGPARSING_DEFS_H +/* end file simdjson/fallback/stringparsing_defs.h */ +/* including simdjson/fallback/numberparsing_defs.h: #include "simdjson/fallback/numberparsing_defs.h" */ +/* begin file simdjson/fallback/numberparsing_defs.h */ +#ifndef SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +#define SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +#ifdef JSON_TEST_NUMBERS // for unit testing +void found_invalid_number(const uint8_t *buf); +void found_integer(int64_t result, const uint8_t *buf); +void found_unsigned_integer(uint64_t result, const uint8_t *buf); +void found_float(double result, const uint8_t *buf); +#endif + +namespace simdjson { +namespace fallback { +namespace numberparsing { + +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const char *chars) { + uint64_t val; + memcpy(&val, chars, sizeof(uint64_t)); + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + return parse_eight_digits_unrolled(reinterpret_cast(chars)); +} + +#if SIMDJSON_IS_32BITS // _umul128 for x86, arm +// this is a slow emulation routine for 32-bit +// +static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { + return x * (uint64_t)y; +} +static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { + uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); + uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); + uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); + uint64_t adbc_carry = !!(adbc < ad); + uint64_t lo = bd + (adbc << 32); + *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + + (adbc_carry << 32) + !!(lo < bd); + return lo; +} +#endif + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace fallback +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_FALLBACK_NUMBERPARSING_DEFS_H +/* end file simdjson/fallback/numberparsing_defs.h */ +/* end file simdjson/fallback/begin.h */ +/* including simdjson/generic/ondemand/amalgamated.h for fallback: #include "simdjson/generic/ondemand/amalgamated.h" */ +/* begin file simdjson/generic/ondemand/amalgamated.h for fallback */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H) +#error simdjson/generic/ondemand/dependencies.h must be included before simdjson/generic/ondemand/amalgamated.h! +#endif + +// Stuff other things depend on +/* including simdjson/generic/ondemand/base.h for fallback: #include "simdjson/generic/ondemand/base.h" */ +/* begin file simdjson/generic/ondemand/base.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +/** + * A fast, simple, DOM-like interface that parses JSON as you use it. + * + * Designed for maximum speed and a lower memory profile. + */ +namespace ondemand { + +/** Represents the depth of a JSON value (number of nested arrays/objects). */ +using depth_t = int32_t; + +/** @copydoc simdjson::fallback::number_type */ +using number_type = simdjson::fallback::number_type; + +/** @private Position in the JSON buffer indexes */ +using token_position = const uint32_t *; + +class array; +class array_iterator; +class document; +class document_reference; +class document_stream; +class field; +class json_iterator; +enum class json_type; +struct number; +class object; +class object_iterator; +class parser; +class raw_json_string; +class token_iterator; +class value; +class value_iterator; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_BASE_H +/* end file simdjson/generic/ondemand/base.h for fallback */ +/* including simdjson/generic/ondemand/value_iterator.h for fallback: #include "simdjson/generic/ondemand/value_iterator.h" */ +/* begin file simdjson/generic/ondemand/value_iterator.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * Iterates through a single JSON value at a particular depth. + * + * Does not keep track of the type of value: provides methods for objects, arrays and scalars and expects + * the caller to call the right ones. + * + * @private This is not intended for external use. + */ +class value_iterator { +protected: + /** The underlying JSON iterator */ + json_iterator *_json_iter{}; + /** The depth of this value */ + depth_t _depth{}; + /** + * The starting token index for this value + */ + token_position _start_position{}; + +public: + simdjson_inline value_iterator() noexcept = default; + + /** + * Denote that we're starting a document. + */ + simdjson_inline void start_document() noexcept; + + /** + * Skips a non-iterated or partially-iterated JSON value, whether it is a scalar, array or object. + * + * Optimized for scalars. + */ + simdjson_warn_unused simdjson_inline error_code skip_child() noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is at the start of the value + */ + simdjson_inline bool at_start() const noexcept; + + /** + * Tell whether the value is open--if the value has not been used, or the array/object is still open. + */ + simdjson_inline bool is_open() const noexcept; + + /** + * Tell whether the value is at an object's first field (just after the {). + */ + simdjson_inline bool at_first_field() const noexcept; + + /** + * Abandon all iteration. + */ + simdjson_inline void abandon() noexcept; + + /** + * Get the child value as a value_iterator. + */ + simdjson_inline value_iterator child_value() const noexcept; + + /** + * Get the depth of this value. + */ + simdjson_inline int32_t depth() const noexcept; + + /** + * Get the JSON type of this value. + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() const noexcept; + + /** + * @addtogroup object Object iteration + * + * Methods to iterate and find object fields. These methods generally *assume* the value is + * actually an object; the caller is responsible for keeping track of that fact. + * + * @{ + */ + + /** + * Start an object iteration. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + */ + simdjson_warn_unused simdjson_inline simdjson_result start_object() noexcept; + /** + * Start an object iteration from the root. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_object() noexcept; + /** + * Checks whether an object could be started from the root. May be called by start_root_object. + * + * @returns SUCCESS if it is possible to safely start an object from the root (document level). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_object() noexcept; + /** + * Start an object iteration after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_object() noexcept; + /** + * Start an object iteration from the root, after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_object() noexcept; + + /** + * Moves to the next field in an object. + * + * Looks for , and }. If } is found, the object is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return whether there is another field in the object. + * @error TAPE_ERROR If there is a comma missing between fields. + * @error TAPE_ERROR If there is a comma, but not enough tokens remaining to have a key, :, and value. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_field() noexcept; + + /** + * Get the current field's key. + */ + simdjson_warn_unused simdjson_inline simdjson_result field_key() noexcept; + + /** + * Pass the : in the field and move to its value. + */ + simdjson_warn_unused simdjson_inline error_code field_value() noexcept; + + /** + * Find the next field with the given key. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline error_code find_field(const std::string_view key) noexcept; + + /** + * Find the next field with the given key, *without* unescaping. This assumes object order: it + * will not find the field if it was already passed when looking for some *other* field. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_raw(const std::string_view key) noexcept; + + /** + * Find the field with the given key without regard to order, and *without* unescaping. + * + * This is an unordered object lookup: if the field is not found initially, it will cycle around and scan from the beginning. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_unordered_raw(const std::string_view key) noexcept; + + /** @} */ + + /** + * @addtogroup array Array iteration + * Methods to iterate over array elements. These methods generally *assume* the value is actually + * an object; the caller is responsible for keeping track of that fact. + * @{ + */ + + /** + * Check for an opening [ and start an array iteration. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + */ + simdjson_warn_unused simdjson_inline simdjson_result start_array() noexcept; + /** + * Check for an opening [ and start an array iteration while at the root. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_array() noexcept; + /** + * Checks whether an array could be started from the root. May be called by start_root_array. + * + * @returns SUCCESS if it is possible to safely start an array from the root (document level). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_array() noexcept; + /** + * Start an array iteration, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_array() noexcept; + /** + * Start an array iteration from the root, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_array() noexcept; + + /** + * Moves to the next element in an array. + * + * Looks for , and ]. If ] is found, the array is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return Whether there is another element in the array. + * @error TAPE_ERROR If there is a comma missing between elements. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_element() noexcept; + + /** + * Get a child value iterator. + */ + simdjson_warn_unused simdjson_inline value_iterator child() const noexcept; + + /** @} */ + + /** + * @defgroup scalar Scalar values + * @addtogroup scalar + * @{ + */ + + simdjson_warn_unused simdjson_inline simdjson_result get_string(bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_bool() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_null() noexcept; + simdjson_warn_unused simdjson_inline bool is_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_integer() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + simdjson_warn_unused simdjson_inline simdjson_result get_root_string(bool check_trailing, bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_wobbly_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_raw_json_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_bool(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline bool is_root_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_integer(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number_type(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_null(bool check_trailing) noexcept; + + simdjson_inline error_code error() const noexcept; + simdjson_inline uint8_t *&string_buf_loc() noexcept; + simdjson_inline const json_iterator &json_iter() const noexcept; + simdjson_inline json_iterator &json_iter() noexcept; + + simdjson_inline void assert_is_valid() const noexcept; + simdjson_inline bool is_valid() const noexcept; + + /** @} */ +protected: + /** + * Restarts an array iteration. + * @returns Whether the array has any elements (returns false for empty). + */ + simdjson_inline simdjson_result reset_array() noexcept; + /** + * Restarts an object iteration. + * @returns Whether the object has any fields (returns false for empty). + */ + simdjson_inline simdjson_result reset_object() noexcept; + /** + * move_at_start(): moves us so that we are pointing at the beginning of + * the container. It updates the index so that at_start() is true and it + * syncs the depth. The user can then create a new container instance. + * + * Usage: used with value::count_elements(). + **/ + simdjson_inline void move_at_start() noexcept; + + /** + * move_at_container_start(): moves us so that we are pointing at the beginning of + * the container so that assert_at_container_start() passes. + * + * Usage: used with reset_array() and reset_object(). + **/ + simdjson_inline void move_at_container_start() noexcept; + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + simdjson_inline value_iterator(json_iterator *json_iter, depth_t depth, token_position start_index) noexcept; + + simdjson_inline simdjson_result parse_null(const uint8_t *json) const noexcept; + simdjson_inline simdjson_result parse_bool(const uint8_t *json) const noexcept; + simdjson_inline const uint8_t *peek_start() const noexcept; + simdjson_inline uint32_t peek_start_length() const noexcept; + + /** + * The general idea of the advance_... methods and the peek_* methods + * is that you first peek and check that you have desired type. If you do, + * and only if you do, then you advance. + * + * We used to unconditionally advance. But this made reasoning about our + * current state difficult. + * Suppose you always advance. Look at the 'value' matching the key + * "shadowable" in the following example... + * + * ({"globals":{"a":{"shadowable":[}}}}) + * + * If the user thinks it is a Boolean and asks for it, then we check the '[', + * decide it is not a Boolean, but still move into the next character ('}'). Now + * we are left pointing at '}' right after a '['. And we have not yet reported + * an error, only that we do not have a Boolean. + * + * If, instead, you just stand your ground until it is content that you know, then + * you will only even move beyond the '[' if the user tells you that you have an + * array. So you will be at the '}' character inside the array and, hopefully, you + * will then catch the error because an array cannot start with '}', but the code + * processing Boolean values does not know this. + * + * So the contract is: first call 'peek_...' and then call 'advance_...' only + * if you have determined that it is a type you can handle. + * + * Unfortunately, it makes the code more verbose, longer and maybe more error prone. + */ + + simdjson_inline void advance_scalar(const char *type) noexcept; + simdjson_inline void advance_root_scalar(const char *type) noexcept; + simdjson_inline void advance_non_root_scalar(const char *type) noexcept; + + simdjson_inline const uint8_t *peek_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_root_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_non_root_scalar(const char *type) noexcept; + + + simdjson_inline error_code start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept; + simdjson_inline error_code end_container() noexcept; + + /** + * Advance to a place expecting a value (increasing depth). + * + * @return The current token (the one left behind). + * @error TAPE_ERROR If the document ended early. + */ + simdjson_inline simdjson_result advance_to_value() noexcept; + + simdjson_inline error_code incorrect_type_error(const char *message) const noexcept; + simdjson_inline error_code error_unless_more_tokens(uint32_t tokens=1) const noexcept; + + simdjson_inline bool is_at_start() const noexcept; + /** + * is_at_iterator_start() returns true on an array or object after it has just been + * created, whether the instance is empty or not. + * + * Usage: used by array::begin() in debug mode (SIMDJSON_DEVELOPMENT_CHECKS) + */ + simdjson_inline bool is_at_iterator_start() const noexcept; + + /** + * Assuming that we are within an object, this returns true if we + * are pointing at a key. + * + * Usage: the skip_child() method should never be used while we are pointing + * at a key inside an object. + */ + simdjson_inline bool is_at_key() const noexcept; + + inline void assert_at_start() const noexcept; + inline void assert_at_container_start() const noexcept; + inline void assert_at_root() const noexcept; + inline void assert_at_child() const noexcept; + inline void assert_at_next() const noexcept; + inline void assert_at_non_root_start() const noexcept; + + /** Get the starting position of this value */ + simdjson_inline token_position start_position() const noexcept; + + /** @copydoc error_code json_iterator::position() const noexcept; */ + simdjson_inline token_position position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position last_position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position end_position() const noexcept; + /** @copydoc error_code json_iterator::report_error(error_code error, const char *message) noexcept; */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + friend class document; + friend class object; + friend class array; + friend class value; +}; // value_iterator + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::value_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H +/* end file simdjson/generic/ondemand/value_iterator.h for fallback */ +/* including simdjson/generic/ondemand/value.h for fallback: #include "simdjson/generic/ondemand/value.h" */ +/* begin file simdjson/generic/ondemand/value.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * An ephemeral JSON value returned during iteration. It is only valid for as long as you do + * not access more data in the JSON document. + */ +class value { +public: + /** + * Create a new invalid value. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline value() noexcept = default; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) noexcept; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() noexcept; + + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() noexcept; + + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + + /** + * Cast this JSON value (inside string) to a unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * Important: a value should be consumed once. Calling get_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + + + /** + * Cast this JSON value to a "wobbly" string. + * + * The string is may not be a valid UTF-8 string. + * See https://simonsapin.github.io/wtf-8/ + * + * Important: a value should be consumed once. Calling get_wobbly_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); +#endif + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + * + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * Performance hint: You should only call count_elements() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method on the object instance. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @return The type of JSON value (json_type::array, json_type::object, json_type::string, + * json_type::number, json_type::boolean, or json_type::null). + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the value is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the value is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the value is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * Performance note: if you call this function systematically + * before parsing a number, you may have fallen for a performance + * anti-pattern. + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + * + * Performance note: this is designed with performance in mind. When + * calling 'get_number()', you scan the number string only once, determining + * efficiently the type and storing it in an efficient manner. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. However, if this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view is guaranteed to be + * a non-space token. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline std::string_view raw_json_token() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + simdjson_inline simdjson_result current_location() noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. + * + * Calling at_pointer() on non-document instances (e.g., arrays and objects) is not + * standardized (by RFC 6901). We provide some experimental support for JSON pointers + * on non-document instances. Yet it is not the case when calling at_pointer on an array + * or an object instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + +protected: + /** + * Create a value. + */ + simdjson_inline value(const value_iterator &iter) noexcept; + + /** + * Skip this value, allowing iteration to continue. + */ + simdjson_inline void skip() noexcept; + + /** + * Start a value at the current position. + * + * (It should already be started; this is just a self-documentation method.) + */ + static simdjson_inline value start(const value_iterator &iter) noexcept; + + /** + * Resume a value. + */ + static simdjson_inline value resume(const value_iterator &iter) noexcept; + + /** + * Get the object, starting or resuming it as necessary + */ + simdjson_inline simdjson_result start_or_resume_object() noexcept; + + // simdjson_inline void log_value(const char *type) const noexcept; + // simdjson_inline void log_error(const char *message) const noexcept; + + value_iterator iter{}; + + friend class document; + friend class array_iterator; + friend class field; + friend class object; + friend struct simdjson_result; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::value &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result get_array() noexcept; + simdjson_inline simdjson_result get_object() noexcept; + + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() noexcept; + + template simdjson_inline error_code get(T &out) noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator fallback::ondemand::array() noexcept(false); + simdjson_inline operator fallback::ondemand::object() noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator fallback::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + */ + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + + /** @copydoc simdjson_inline std::string_view value::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** @copydoc simdjson_inline simdjson_result current_location() noexcept */ + simdjson_inline simdjson_result current_location() noexcept; + /** @copydoc simdjson_inline int32_t current_depth() const noexcept */ + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_H +/* end file simdjson/generic/ondemand/value.h for fallback */ +/* including simdjson/generic/ondemand/logger.h for fallback: #include "simdjson/generic/ondemand/logger.h" */ +/* begin file simdjson/generic/ondemand/logger.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +// Logging should be free unless SIMDJSON_VERBOSE_LOGGING is set. Importantly, it is critical +// that the call to the log functions be side-effect free. Thus, for example, you should not +// create temporary std::string instances. +namespace logger { + +enum class log_level : int32_t { + info = 0, + error = 1 +}; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + +// We do not want these functions to be 'really inlined' since real inlining is +// for performance purposes and if you are using the loggers, you do not care about +// performance (or should not). +static inline void log_headers() noexcept; +// If args are provided, title will be treated as format string +template +static inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +template +static inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; +static inline void log_event(const json_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_value(const json_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_start_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; + +static inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail="") noexcept; +static inline void log_error(const json_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +static inline void log_event(const value_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const value_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_error(const value_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +} // namespace logger +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_H +/* end file simdjson/generic/ondemand/logger.h for fallback */ +/* including simdjson/generic/ondemand/token_iterator.h for fallback: #include "simdjson/generic/ondemand/token_iterator.h" */ +/* begin file simdjson/generic/ondemand/token_iterator.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * Iterates through JSON tokens (`{` `}` `[` `]` `,` `:` `""` `123` `true` `false` `null`) + * detected by stage 1. + * + * @private This is not intended for external use. + */ +class token_iterator { +public: + /** + * Create a new invalid token_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline token_iterator() noexcept = default; + simdjson_inline token_iterator(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator &operator=(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator(const token_iterator &other) noexcept = default; + simdjson_inline token_iterator &operator=(const token_iterator &other) noexcept = default; + + /** + * Advance to the next token (returning the current one). + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + /** + * Reports the current offset in bytes from the start of the underlying buffer. + */ + simdjson_inline uint32_t current_offset() const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + + /** + * Return the current index. + */ + simdjson_inline token_position position() const noexcept; + /** + * Reset to a previously saved index. + */ + simdjson_inline void set_position(token_position target_position) noexcept; + + // NOTE: we don't support a full C++ iterator interface, because we expect people to make + // different calls to advance the iterator based on *their own* state. + + simdjson_inline bool operator==(const token_iterator &other) const noexcept; + simdjson_inline bool operator!=(const token_iterator &other) const noexcept; + simdjson_inline bool operator>(const token_iterator &other) const noexcept; + simdjson_inline bool operator>=(const token_iterator &other) const noexcept; + simdjson_inline bool operator<(const token_iterator &other) const noexcept; + simdjson_inline bool operator<=(const token_iterator &other) const noexcept; + +protected: + simdjson_inline token_iterator(const uint8_t *buf, token_position position) noexcept; + + /** + * Get the index of the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_index(int32_t delta=0) const noexcept; + /** + * Get the index of the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline uint32_t peek_index(token_position position) const noexcept; + + const uint8_t *buf{}; + token_position _position{}; + + friend class json_iterator; + friend class value_iterator; + friend class object; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::token_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H +/* end file simdjson/generic/ondemand/token_iterator.h for fallback */ +/* including simdjson/generic/ondemand/json_iterator.h for fallback: #include "simdjson/generic/ondemand/json_iterator.h" */ +/* begin file simdjson/generic/ondemand/json_iterator.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * Iterates through JSON tokens, keeping track of depth and string buffer. + * + * @private This is not intended for external use. + */ +class json_iterator { +protected: + token_iterator token{}; + ondemand::parser *parser{}; + /** + * Next free location in the string buffer. + * + * Used by raw_json_string::unescape() to have a place to unescape strings to. + */ + uint8_t *_string_buf_loc{}; + /** + * JSON error, if there is one. + * + * INCORRECT_TYPE and NO_SUCH_FIELD are *not* stored here, ever. + * + * PERF NOTE: we *hope* this will be elided into control flow, as it is only used (a) in the first + * iteration of the loop, or (b) for the final iteration after a missing comma is found in ++. If + * this is not elided, we should make sure it's at least not using up a register. Failing that, + * we should store it in document so there's only one of them. + */ + error_code error{SUCCESS}; + /** + * Depth of the current token in the JSON. + * + * - 0 = finished with document + * - 1 = document root value (could be [ or {, not yet known) + * - 2 = , or } inside root array/object + * - 3 = key or value inside root array/object. + */ + depth_t _depth{}; + /** + * Beginning of the document indexes. + * Normally we have root == parser->implementation->structural_indexes.get() + * but this may differ, especially in streaming mode (where we have several + * documents); + */ + token_position _root{}; + /** + * Normally, a json_iterator operates over a single document, but in + * some cases, we may have a stream of documents. This attribute is meant + * as meta-data: the json_iterator works the same irrespective of the + * value of this attribute. + */ + bool _streaming{false}; + +public: + simdjson_inline json_iterator() noexcept = default; + simdjson_inline json_iterator(json_iterator &&other) noexcept; + simdjson_inline json_iterator &operator=(json_iterator &&other) noexcept; + simdjson_inline explicit json_iterator(const json_iterator &other) noexcept = default; + simdjson_inline json_iterator &operator=(const json_iterator &other) noexcept = default; + /** + * Skips a JSON value, whether it is a scalar, array or object. + */ + simdjson_warn_unused simdjson_inline error_code skip_child(depth_t parent_depth) noexcept; + + /** + * Tell whether the iterator is still at the start + */ + simdjson_inline bool at_root() const noexcept; + + /** + * Tell whether we should be expected to run in streaming + * mode (iterating over many documents). It is pure metadata + * that does not affect how the iterator works. It is used by + * start_root_array() and start_root_object(). + */ + simdjson_inline bool streaming() const noexcept; + + /** + * Get the root value iterator + */ + simdjson_inline token_position root_position() const noexcept; + /** + * Assert that we are at the document depth (== 1) + */ + simdjson_inline void assert_at_document_depth() const noexcept; + /** + * Assert that we are at the root of the document + */ + simdjson_inline void assert_at_root() const noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is live (has not been moved). + */ + simdjson_inline bool is_alive() const noexcept; + + /** + * Abandon this iterator, setting depth to 0 (as if the document is finished). + */ + simdjson_inline void abandon() noexcept; + + /** + * Advance the current token without modifying depth. + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + + /** + * Returns true if there is a single token in the index (i.e., it is + * a JSON with a scalar value such as a single number). + * + * @return whether there is a single token + */ + simdjson_inline bool is_single_token() const noexcept; + + /** + * Assert that there are at least the given number of tokens left. + * + * Has no effect in release builds. + */ + simdjson_inline void assert_more_tokens(uint32_t required_tokens=1) const noexcept; + /** + * Assert that the given position addresses an actual token (is within bounds). + * + * Has no effect in release builds. + */ + simdjson_inline void assert_valid_position(token_position position) const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + /** + * Get a pointer to the current location in the input buffer. + * + * This is not null-terminated; it is a view into the JSON. + * + * You may be pointing outside of the input buffer: it is not generally + * safe to dereference this pointer. + */ + simdjson_inline const uint8_t *unsafe_pointer() const noexcept; + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token to retrieve. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token to retrieve. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + /** + * Get the JSON text for the last token in the document. + * + * This is not null-terminated; it is a view into the JSON. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek_last() const noexcept; + + /** + * Ascend one level. + * + * Validates that the depth - 1 == parent_depth. + * + * @param parent_depth the expected parent depth. + */ + simdjson_inline void ascend_to(depth_t parent_depth) noexcept; + + /** + * Descend one level. + * + * Validates that the new depth == child_depth. + * + * @param child_depth the expected child depth. + */ + simdjson_inline void descend_to(depth_t child_depth) noexcept; + simdjson_inline void descend_to(depth_t child_depth, int32_t delta) noexcept; + + /** + * Get current depth. + */ + simdjson_inline depth_t depth() const noexcept; + + /** + * Get current (writeable) location in the string buffer. + */ + simdjson_inline uint8_t *&string_buf_loc() noexcept; + + /** + * Report an unrecoverable error, preventing further iteration. + * + * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + /** + * Log error, but don't stop iteration. + * @param error The error to report. Must be INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code optional_error(error_code error, const char *message) noexcept; + + /** + * Take an input in json containing max_len characters and attempt to copy it over to tmpbuf, a buffer with + * N bytes of capacity. It will return false if N is too small (smaller than max_len) of if it is zero. + * The buffer (tmpbuf) is padded with space characters. + */ + simdjson_warn_unused simdjson_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept; + + simdjson_inline token_position position() const noexcept; + /** + * Write the raw_json_string to the string buffer and return a string_view. + * Each raw_json_string should be unescaped once, or else the string buffer might + * overflow. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, bool allow_replacement) noexcept; + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in) noexcept; + simdjson_inline void reenter_child(token_position position, depth_t child_depth) noexcept; + + simdjson_inline error_code consume_character(char c) noexcept; +#if SIMDJSON_DEVELOPMENT_CHECKS + simdjson_inline token_position start_position(depth_t depth) const noexcept; + simdjson_inline void set_start_position(depth_t depth, token_position position) noexcept; +#endif + + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Updates this json iterator so that it is back at the beginning of the document, + * as if it had just been created. + */ + inline void rewind() noexcept; + /** + * This checks whether the {,},[,] are balanced so that the document + * ends with proper zero depth. This requires scanning the whole document + * and it may be expensive. It is expected that it will be rarely called. + * It does not attempt to match { with } and [ with ]. + */ + inline bool balanced() const noexcept; +protected: + simdjson_inline json_iterator(const uint8_t *buf, ondemand::parser *parser) noexcept; + /// The last token before the end + simdjson_inline token_position last_position() const noexcept; + /// The token *at* the end. This points at gibberish and should only be used for comparison. + simdjson_inline token_position end_position() const noexcept; + /// The end of the buffer. + simdjson_inline token_position end() const noexcept; + + friend class document; + friend class document_stream; + friend class object; + friend class array; + friend class value; + friend class raw_json_string; + friend class parser; + friend class value_iterator; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; // json_iterator + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::json_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H +/* end file simdjson/generic/ondemand/json_iterator.h for fallback */ +/* including simdjson/generic/ondemand/json_type.h for fallback: #include "simdjson/generic/ondemand/json_type.h" */ +/* begin file simdjson/generic/ondemand/json_type.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * The type of a JSON value. + */ +enum class json_type { + // Start at 1 to catch uninitialized / default values more easily + array=1, ///< A JSON array ( [ 1, 2, 3 ... ] ) + object, ///< A JSON object ( { "a": 1, "b" 2, ... } ) + number, ///< A JSON number ( 1 or -2.3 or 4.5e6 ...) + string, ///< A JSON string ( "a" or "hello world\n" ...) + boolean, ///< A JSON boolean (true or false) + null ///< A JSON null (null) +}; + +/** + * A type representing a JSON number. + * The design of the struct is deliberately straight-forward. All + * functions return standard values with no error check. + */ +struct number { + + /** + * return the automatically determined type of + * the number: number_type::floating_point_number, + * number_type::signed_integer or number_type::unsigned_integer. + * + * enum class number_type { + * floating_point_number=1, /// a binary64 number + * signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + * unsigned_integer /// a positive integer larger or equal to 1<<63 + * }; + */ + simdjson_inline ondemand::number_type get_number_type() const noexcept; + /** + * return true if the automatically determined type of + * the number is number_type::unsigned_integer. + */ + simdjson_inline bool is_uint64() const noexcept; + /** + * return the value as a uint64_t, only valid if is_uint64() is true. + */ + simdjson_inline uint64_t get_uint64() const noexcept; + simdjson_inline operator uint64_t() const noexcept; + + /** + * return true if the automatically determined type of + * the number is number_type::signed_integer. + */ + simdjson_inline bool is_int64() const noexcept; + /** + * return the value as a int64_t, only valid if is_int64() is true. + */ + simdjson_inline int64_t get_int64() const noexcept; + simdjson_inline operator int64_t() const noexcept; + + + /** + * return true if the automatically determined type of + * the number is number_type::floating_point_number. + */ + simdjson_inline bool is_double() const noexcept; + /** + * return the value as a double, only valid if is_double() is true. + */ + simdjson_inline double get_double() const noexcept; + simdjson_inline operator double() const noexcept; + + /** + * Convert the number to a double. Though it always succeed, the conversion + * may be lossy if the number cannot be represented exactly. + */ + simdjson_inline double as_double() const noexcept; + + +protected: + /** + * The next block of declaration is designed so that we can call the number parsing + * functions on a number type. They are protected and should never be used outside + * of the core simdjson library. + */ + friend class value_iterator; + template + friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer); + template + friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer); + template + friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer); + /** Store a signed 64-bit value to the number. */ + simdjson_inline void append_s64(int64_t value) noexcept; + /** Store an unsigned 64-bit value to the number. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + /** Store a double value to the number. */ + simdjson_inline void append_double(double value) noexcept; + /** Specifies that the value is a double, but leave it undefined. */ + simdjson_inline void skip_double() noexcept; + /** + * End of friend declarations. + */ + + /** + * Our attributes are a union type (size = 64 bits) + * followed by a type indicator. + */ + union { + double floating_point_number; + int64_t signed_integer; + uint64_t unsigned_integer; + } payload{0}; + number_type type{number_type::signed_integer}; +}; + +/** + * Write the JSON type to the output stream + * + * @param out The output stream. + * @param type The json_type. + */ +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept; + +#if SIMDJSON_EXCEPTIONS +/** + * Send JSON type to an output stream. + * + * @param out The output stream. + * @param type The json_type. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false); +#endif + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::json_type &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H +/* end file simdjson/generic/ondemand/json_type.h for fallback */ +/* including simdjson/generic/ondemand/raw_json_string.h for fallback: #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * A string escaped per JSON rules, terminated with quote ("). They are used to represent + * unescaped keys inside JSON documents. + * + * (In other words, a pointer to the beginning of a string, just after the start quote, inside a + * JSON file.) + * + * This class is deliberately simplistic and has little functionality. You can + * compare a raw_json_string instance with an unescaped C string, but + * that is nearly all you can do. + * + * The raw_json_string is unescaped. If you wish to write an unescaped version of it to your own + * buffer, you may do so using the parser.unescape(string, buff) method, using an ondemand::parser + * instance. Doing so requires you to have a sufficiently large buffer. + * + * The raw_json_string instances originate typically from field instance which in turn represent + * key-value pairs from object instances. From a field instance, you get the raw_json_string + * instance by calling key(). You can, if you want a more usable string_view instance, call + * the unescaped_key() method on the field instance. You may also create a raw_json_string from + * any other string value, with the value.get_raw_json_string() method. Again, you can get + * a more usable string_view instance by calling get_string(). + * + */ +class raw_json_string { +public: + /** + * Create a new invalid raw_json_string. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline raw_json_string() noexcept = default; + + /** + * Create a new invalid raw_json_string pointed at the given location in the JSON. + * + * The given location must be just *after* the beginning quote (") in the JSON file. + * + * It *must* be terminated by a ", and be a valid JSON string. + */ + simdjson_inline raw_json_string(const uint8_t * _buf) noexcept; + /** + * Get the raw pointer to the beginning of the string in the JSON (just after the "). + * + * It is possible for this function to return a null pointer if the instance + * has outlived its existence. + */ + simdjson_inline const char * raw() const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done) on target.size() characters, + * and if the raw_json_string instance has a quote character at byte index target.size(). + * We never read more than length + 1 bytes in the raw_json_string instance. + * If length is smaller than target.size(), this will return false. + * + * The std::string_view instance may contain any characters. However, the caller + * is responsible for setting length so that length bytes may be read in the + * raw_json_string. + * + * Performance: the comparison may be done using memcmp which may be efficient + * for long strings. + */ + simdjson_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The std::string_view instance should not contain unescaped quote characters: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * Performance: the comparison is done byte-by-byte which might be inefficient for + * long strings. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The provided C string should not contain an unescaped quote character: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(const char* target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(const char* target) const noexcept; + + /** + * Returns true if target is free from unescaped quote. If target is known at + * compile-time, we might expect the computation to happen at compile time with + * many compilers (not all!). + */ + static simdjson_inline bool is_free_from_unescaped_quote(std::string_view target) noexcept; + static simdjson_inline bool is_free_from_unescaped_quote(const char* target) noexcept; + +private: + + + /** + * This will set the inner pointer to zero, effectively making + * this instance unusable. + */ + simdjson_inline void consume() noexcept { buf = nullptr; } + + /** + * Checks whether the inner pointer is non-null and thus usable. + */ + simdjson_inline simdjson_warn_unused bool alive() const noexcept { return buf != nullptr; } + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result will be a valid UTF-8. + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + * @param allow_replacement Whether we allow replacement of invalid surrogate pairs. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape(json_iterator &iter, bool allow_replacement) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result may not be a valid UTF-8. https://simonsapin.github.io/wtf-8/ + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(json_iterator &iter) const noexcept; + const uint8_t * buf{}; + friend class object; + friend class field; + friend class parser; + friend struct simdjson_result; +}; + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &, const raw_json_string &) noexcept; + +/** + * Comparisons between raw_json_string and std::string_view instances are potentially unsafe: the user is responsible + * for providing a string with no unescaped quote. Note that unescaped quotes cannot be present in valid JSON strings. + */ +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept; +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept; + + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::raw_json_string &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private + + simdjson_inline simdjson_result raw() const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape(fallback::ondemand::json_iterator &iter, bool allow_replacement) const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(fallback::ondemand::json_iterator &iter) const noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H +/* end file simdjson/generic/ondemand/raw_json_string.h for fallback */ +/* including simdjson/generic/ondemand/parser.h for fallback: #include "simdjson/generic/ondemand/parser.h" */ +/* begin file simdjson/generic/ondemand/parser.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * The default batch size for document_stream instances for this On Demand kernel. + * Note that different On Demand kernel may use a different DEFAULT_BATCH_SIZE value + * in the future. + */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; + +/** + * A JSON fragment iterator. + * + * This holds the actual iterator as well as the buffer for writing strings. + */ +class parser { +public: + /** + * Create a JSON parser. + * + * The new parser will have zero capacity. + */ + inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; + + inline parser(parser &&other) noexcept = default; + simdjson_inline parser(const parser &other) = delete; + simdjson_inline parser &operator=(const parser &other) = delete; + simdjson_inline parser &operator=(parser &&other) noexcept = default; + + /** Deallocate the JSON parser. */ + inline ~parser() noexcept = default; + + /** + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * document doc = parser.iterate(json); + * + * It is expected that the content is a valid UTF-8 file, containing a valid JSON document. + * Otherwise the iterate method may return an error. In particular, the whole input should be + * valid: we do not attempt to tolerate incorrect content either before or after a JSON + * document. + * + * ### IMPORTANT: Validate what you use + * + * Calling iterate on an invalid JSON document may not immediately trigger an error. The call to + * iterate does not parse and validate the whole document. + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * @param len The length of the JSON. + * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING). + * + * @return The document, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate(padded_string_view json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const char *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(std::string_view json, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const std::string &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(padded_string &&json) & noexcept = delete; + + /** + * @private + * + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * json_iterator doc = parser.iterate(json); + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * The ondemand::document instance holds the iterator. The document must remain in scope + * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * + * @return The iterator, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate_raw(padded_string_view json) & noexcept; + + + /** + * Parse a buffer containing many JSON documents. + * + * auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded; + * ondemand::parser parser; + * ondemand::document_stream docs = parser.iterate_many(json); + * for (auto & doc : docs) { + * std::cout << doc["foo"] << std::endl; + * } + * // Prints 1 2 3 + * + * No copy of the input buffer is made. + * + * The function is lazy: it may be that no more than one JSON document at a time is parsed. + * + * The caller is responsabile to ensure that the input string data remains unchanged and is + * not deleted during the loop. + * + * ### Format + * + * The buffer must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) + * + * documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. Documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with ASCII whitespace. + * + * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8). + * + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excessively small values may impact negatively the + * performance. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * ### Threads + * + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The concatenated JSON to parse. + * @param len The length of the concatenated JSON. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 10MB, which has been a reasonable sweet spot in our tests. + * @param allow_comma_separated (defaults on false) This allows a mode where the documents are + * separated by commas instead of whitespace. It comes with a performance + * penalty because the entire document is indexed at once (and the document must be + * less than 4 GB), and there is no multithreading. In this mode, the batch_size parameter + * is effectively ignored, as it is set to at least the document size. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const std::string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const std::string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const padded_string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const padded_string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_result iterate_many(const char *buf, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept = delete; + + /** The capacity of this parser (the largest document it can process). */ + simdjson_inline size_t capacity() const noexcept; + /** The maximum capacity of this parser (the largest document it is allowed to process). */ + simdjson_inline size_t max_capacity() const noexcept; + simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; + /** + * The maximum depth of this parser (the most deeply nested objects and arrays it can process). + * This parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * The max_depth parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused error_code allocate(size_t capacity, size_t max_depth=DEFAULT_MAX_DEPTH) noexcept; + + #ifdef SIMDJSON_THREADS_ENABLED + /** + * The parser instance can use threads when they are available to speed up some + * operations. It is enabled by default. Changing this attribute will change the + * behavior of the parser for future operations. + */ + bool threaded{true}; + #endif + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result must be valid UTF-8. + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @param allow_replacement Whether we allow a replacement if the input string contains unmatched surrogate pairs. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement = false) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result may not be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept; + +private: + /** @private [for benchmarking access] The implementation to use */ + std::unique_ptr implementation{}; + size_t _capacity{0}; + size_t _max_capacity; + size_t _max_depth{DEFAULT_MAX_DEPTH}; + std::unique_ptr string_buf{}; +#if SIMDJSON_DEVELOPMENT_CHECKS + std::unique_ptr start_positions{}; +#endif + + friend class json_iterator; + friend class document_stream; +}; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::parser &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_H +/* end file simdjson/generic/ondemand/parser.h for fallback */ + +// All other declarations +/* including simdjson/generic/ondemand/array.h for fallback: #include "simdjson/generic/ondemand/array.h" */ +/* begin file simdjson/generic/ondemand/array.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * A forward-only JSON array. + */ +class array { +public: + /** + * Create a new invalid array. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline array() noexcept = default; + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an array is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the beginning of the array and checks whether the + * array is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result is_empty() & noexcept; + /** + * Reset the iterator so that we are pointing back at the + * beginning of the array. You should still consume values only once even if you + * can iterate through the array more than once. If you unescape a string + * within the array more than once, you have unsafe code. Note that rewinding + * an array means that you may need to reparse it anew: it is not a free + * operation. + * + * @returns true if the array contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/0/foo/a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an array + * instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the array and returns a string_view instance corresponding to the + * array as represented in JSON. It points inside the original document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + + /** + * Get the value at the given index. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; +protected: + /** + * Go to the end of the array, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + + /** + * Begin array iteration. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + */ + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + /** + * Begin array iteration from the root. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + * @error TAPE_ERROR if there is no closing ] at the end of the document. + */ + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + /** + * Begin array iteration. + * + * This version of the method should be called after the initial [ has been verified, and is + * intended for use by switch statements that check the type of a value. + * + * @param iter The iterator. Must be after the initial [. Will be *moved* into the resulting array. + */ + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + + /** + * Create an array at the given Internal array creation. Call array::start() or array::started() instead of this. + * + * @param iter The iterator. Must either be at the start of the first element with iter.is_alive() + * == true, or past the [] with is_alive() == false if the array is empty. Will be *moved* + * into the resulting array. + */ + simdjson_inline array(const value_iterator &iter) noexcept; + + /** + * Iterator marking current position. + * + * iter.is_alive() == false indicates iteration is complete. + */ + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; + friend struct simdjson_result; + friend class array_iterator; +}; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::array &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + inline simdjson_result count_elements() & noexcept; + inline simdjson_result is_empty() & noexcept; + inline simdjson_result reset() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_H +/* end file simdjson/generic/ondemand/array.h for fallback */ +/* including simdjson/generic/ondemand/array_iterator.h for fallback: #include "simdjson/generic/ondemand/array_iterator.h" */ +/* begin file simdjson/generic/ondemand/array_iterator.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * A forward-only JSON array. + * + * This is an input_iterator, meaning: + * - It is forward-only + * - * must be called exactly once per element. + * - ++ must be called exactly once in between each * (*, ++, *, ++, * ...) + */ +class array_iterator { +public: + /** Create a new, invalid array iterator. */ + simdjson_inline array_iterator() noexcept = default; + + // + // Iterator interface + // + + /** + * Get the current element. + * + * Part of the std::iterator interface. + */ + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + /** + * Check if we are at the end of the JSON. + * + * Part of the std::iterator interface. + * + * @return true if there are no more elements in the JSON array. + */ + simdjson_inline bool operator==(const array_iterator &) const noexcept; + /** + * Check if there are more elements in the JSON array. + * + * Part of the std::iterator interface. + * + * @return true if there are more elements in the JSON array. + */ + simdjson_inline bool operator!=(const array_iterator &) const noexcept; + /** + * Move to the next element. + * + * Part of the std::iterator interface. + */ + simdjson_inline array_iterator &operator++() noexcept; + +private: + value_iterator iter{}; + + simdjson_inline array_iterator(const value_iterator &iter) noexcept; + + friend class array; + friend class value; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::array_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H +/* end file simdjson/generic/ondemand/array_iterator.h for fallback */ +/* including simdjson/generic/ondemand/document.h for fallback: #include "simdjson/generic/ondemand/document.h" */ +/* begin file simdjson/generic/ondemand/document.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * A JSON document. It holds a json_iterator instance. + * + * Used by tokens to get text, and string buffer location. + * + * You must keep the document around during iteration. + */ +class document { +public: + /** + * Create a new invalid document. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline document() noexcept = default; + simdjson_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy + simdjson_inline document(document &&other) noexcept = default; + simdjson_inline document &operator=(const document &other) noexcept = delete; + simdjson_inline document &operator=(document &&other) noexcept = default; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() & noexcept; + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() & noexcept; + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + /** + * Cast this JSON value (inside string) to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Important: Calling get_string() twice on the same document is an error. + * + * @param Whether to allow a replacement character for unmatched surrogate pairs. + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + /** + * Cast this JSON value to a string. + * + * The string is not guaranteed to be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * + * Important: Calling get_wobbly_string() twice on the same document is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + /** + * Cast this JSON value to a value when the document is an object or an array. + * + * @returns A value if a JSON array or object cannot be found. + * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result get_value() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() & noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + /** @overload template simdjson_result get() & noexcept */ + template simdjson_inline simdjson_result get() && noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value + * + * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances. + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) & noexcept; + /** @overload template error_code get(T &out) & noexcept */ + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() & noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() & noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); + /** + * Cast this JSON value to a value. + * + * @returns A value value. + * @exception if a JSON value cannot be found + */ + simdjson_inline operator value() noexcept(false); +#endif + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) & noexcept; + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to + * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the document is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the document is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the document is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. If this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view may be the padded buffer. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** + * Reset the iterator inside the document instance so we are pointing back at the + * beginning of the document, as if it had just been created. It invalidates all + * values, objects and arrays that you have created so far (including unescaped strings). + */ + inline void rewind() noexcept; + /** + * Returns debugging information. + */ + inline std::string to_debug_string() noexcept; + /** + * Some unrecoverable error conditions may render the document instance unusable. + * The is_alive() method returns true when the document is still suitable. + */ + inline bool is_alive() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Returns true if this document has been fully parsed. + * If you have consumed the whole document and at_end() returns + * false, then there may be trailing content. + */ + inline bool at_end() const noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() automatically calls rewind between each call. Thus + * all values, objects and arrays that you have created so far (including unescaped strings) + * are invalidated. After calling at_pointer, you need to consume the result: string values + * should be stored in your own variables, arrays should be decoded and stored in your own array-like + * structures and so forth. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + * - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the document and returns a string_view instance corresponding to the + * document as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; +protected: + /** + * Consumes the document. + */ + simdjson_inline error_code consume() noexcept; + + simdjson_inline document(ondemand::json_iterator &&iter) noexcept; + simdjson_inline const uint8_t *text(uint32_t idx) const noexcept; + + simdjson_inline value_iterator resume_value_iterator() noexcept; + simdjson_inline value_iterator get_root_value_iterator() noexcept; + simdjson_inline simdjson_result start_or_resume_object() noexcept; + static simdjson_inline document start(ondemand::json_iterator &&iter) noexcept; + + // + // Fields + // + json_iterator iter{}; ///< Current position in the document + static constexpr depth_t DOCUMENT_DEPTH = 0; ///< document depth is always 0 + + friend class array_iterator; + friend class value; + friend class ondemand::parser; + friend class object; + friend class array; + friend class field; + friend class token; + friend class document_stream; + friend class document_reference; +}; + + +/** + * A document_reference is a thin wrapper around a document reference instance. + */ +class document_reference { +public: + simdjson_inline document_reference() noexcept; + simdjson_inline document_reference(document &d) noexcept; + simdjson_inline document_reference(const document_reference &other) noexcept = default; + simdjson_inline document_reference& operator=(const document_reference &other) noexcept = default; + simdjson_inline void rewind() noexcept; + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + + simdjson_inline simdjson_result is_null() noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + simdjson_inline operator document&() const noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator array() & noexcept(false); + simdjson_inline operator object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + simdjson_inline simdjson_result raw_json_token() noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +private: + document *doc{nullptr}; +}; +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::document &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() & noexcept; + template simdjson_inline simdjson_result get() && noexcept; + + template simdjson_inline error_code get(T &out) & noexcept; + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator fallback::ondemand::array() & noexcept(false); + simdjson_inline operator fallback::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator fallback::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator fallback::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool at_end() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + + + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::document_reference value, error_code error) noexcept; + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator fallback::ondemand::array() & noexcept(false); + simdjson_inline operator fallback::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator fallback::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator fallback::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document_reference::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H +/* end file simdjson/generic/ondemand/document.h for fallback */ +/* including simdjson/generic/ondemand/document_stream.h for fallback: #include "simdjson/generic/ondemand/document_stream.h" */ +/* begin file simdjson/generic/ondemand/document_stream.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#ifdef SIMDJSON_THREADS_ENABLED +#include +#include +#include +#endif + +namespace simdjson { +namespace fallback { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED +/** @private Custom worker class **/ +struct stage1_worker { + stage1_worker() noexcept = default; + stage1_worker(const stage1_worker&) = delete; + stage1_worker(stage1_worker&&) = delete; + stage1_worker operator=(const stage1_worker&) = delete; + ~stage1_worker(); + /** + * We only start the thread when it is needed, not at object construction, this may throw. + * You should only call this once. + **/ + void start_thread(); + /** + * Start a stage 1 job. You should first call 'run', then 'finish'. + * You must call start_thread once before. + */ + void run(document_stream * ds, parser * stage1, size_t next_batch_start); + /** Wait for the run to finish (blocking). You should first call 'run', then 'finish'. **/ + void finish(); + +private: + + /** + * Normally, we would never stop the thread. But we do in the destructor. + * This function is only safe assuming that you are not waiting for results. You + * should have called run, then finish, and be done. + **/ + void stop_thread(); + + std::thread thread{}; + /** These three variables define the work done by the thread. **/ + ondemand::parser * stage1_thread_parser{}; + size_t _next_batch_start{}; + document_stream * owner{}; + /** + * We have two state variables. This could be streamlined to one variable in the future but + * we use two for clarity. + */ + bool has_work{false}; + bool can_work{true}; + + /** + * We lock using a mutex. + */ + std::mutex locking_mutex{}; + std::condition_variable cond_var{}; + + friend class document_stream; +}; +#endif // SIMDJSON_THREADS_ENABLED + +/** + * A forward-only stream of documents. + * + * Produced by parser::iterate_many. + * + */ +class document_stream { +public: + /** + * Construct an uninitialized document_stream. + * + * ```c++ + * document_stream docs; + * auto error = parser.iterate_many(json).get(docs); + * ``` + */ + simdjson_inline document_stream() noexcept; + /** Move one document_stream to another. */ + simdjson_inline document_stream(document_stream &&other) noexcept = default; + /** Move one document_stream to another. */ + simdjson_inline document_stream &operator=(document_stream &&other) noexcept = default; + + simdjson_inline ~document_stream() noexcept; + + /** + * Returns the input size in bytes. + */ + inline size_t size_in_bytes() const noexcept; + + /** + * After iterating through the stream, this method + * returns the number of bytes that were not parsed at the end + * of the stream. If truncated_bytes() differs from zero, + * then the input was truncated maybe because incomplete JSON + * documents were found at the end of the stream. You + * may need to process the bytes in the interval [size_in_bytes()-truncated_bytes(), size_in_bytes()). + * + * You should only call truncated_bytes() after streaming through all + * documents, like so: + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto & doc : stream) { + * // do something with doc + * } + * size_t truncated = stream.truncated_bytes(); + * + */ + inline size_t truncated_bytes() const noexcept; + + class iterator { + public: + using value_type = simdjson_result; + using reference = value_type; + + using difference_type = std::ptrdiff_t; + + using iterator_category = std::input_iterator_tag; + + /** + * Default constructor. + */ + simdjson_inline iterator() noexcept; + /** + * Get the current document (or error). + */ + simdjson_inline simdjson_result operator*() noexcept; + /** + * Advance to the next document (prefix). + */ + inline iterator& operator++() noexcept; + /** + * Check if we're at the end yet. + * @param other the end iterator to compare to. + */ + simdjson_inline bool operator!=(const iterator &other) const noexcept; + /** + * @private + * + * Gives the current index in the input document in bytes. + * + * document_stream stream = parser.parse_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * auto doc = *i; + * size_t index = i.current_index(); + * } + * + * This function (current_index()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + */ + simdjson_inline size_t current_index() const noexcept; + + /** + * @private + * + * Gives a view of the current document at the current position. + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * std::string_view v = i.source(); + * } + * + * The returned string_view instance is simply a map to the (unparsed) + * source string: it may thus include white-space characters and all manner + * of padding. + * + * This function (source()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + * + */ + simdjson_inline std::string_view source() const noexcept; + + /** + * Returns error of the stream (if any). + */ + inline error_code error() const noexcept; + + private: + simdjson_inline iterator(document_stream *s, bool finished) noexcept; + /** The document_stream we're iterating through. */ + document_stream* stream; + /** Whether we're finished or not. */ + bool finished; + + friend class document; + friend class document_stream; + friend class json_iterator; + }; + + /** + * Start iterating the documents in the stream. + */ + simdjson_inline iterator begin() noexcept; + /** + * The end of the stream, for iterator comparison purposes. + */ + simdjson_inline iterator end() noexcept; + +private: + + document_stream &operator=(const document_stream &) = delete; // Disallow copying + document_stream(const document_stream &other) = delete; // Disallow copying + + /** + * Construct a document_stream. Does not allocate or parse anything until the iterator is + * used. + * + * @param parser is a reference to the parser instance used to generate this document_stream + * @param buf is the raw byte buffer we need to process + * @param len is the length of the raw byte buffer in bytes + * @param batch_size is the size of the windows (must be strictly greater or equal to the largest JSON document) + */ + simdjson_inline document_stream( + ondemand::parser &parser, + const uint8_t *buf, + size_t len, + size_t batch_size, + bool allow_comma_separated + ) noexcept; + + /** + * Parse the first document in the buffer. Used by begin(), to handle allocation and + * initialization. + */ + inline void start() noexcept; + + /** + * Parse the next document found in the buffer previously given to document_stream. + * + * The content should be a valid JSON document encoded as UTF-8. If there is a + * UTF-8 BOM, the caller is responsible for omitting it, UTF-8 BOM are + * discouraged. + * + * You do NOT need to pre-allocate a parser. This function takes care of + * pre-allocating a capacity defined by the batch_size defined when creating the + * document_stream object. + * + * The function returns simdjson::EMPTY if there is no more data to be parsed. + * + * The function returns simdjson::SUCCESS (as integer = 0) in case of success + * and indicates that the buffer has successfully been parsed to the end. + * Every document it contained has been parsed without error. + * + * The function returns an error code from simdjson/simdjson.h in case of failure + * such as simdjson::CAPACITY, simdjson::MEMALLOC, simdjson::DEPTH_ERROR and so forth; + * the simdjson::error_message function converts these error codes into a string). + * + * You can also check validity by calling parser.is_valid(). The same parser can + * and should be reused for the other documents in the buffer. + */ + inline void next() noexcept; + + /** Move the json_iterator of the document to the location of the next document in the stream. */ + inline void next_document() noexcept; + + /** Get the next document index. */ + inline size_t next_batch_start() const noexcept; + + /** Pass the next batch through stage 1 with the given parser. */ + inline error_code run_stage1(ondemand::parser &p, size_t batch_start) noexcept; + + // Fields + ondemand::parser *parser; + const uint8_t *buf; + size_t len; + size_t batch_size; + bool allow_comma_separated; + /** + * We are going to use just one document instance. The document owns + * the json_iterator. It implies that we only ever pass a reference + * to the document to the users. + */ + document doc{}; + /** The error (or lack thereof) from the current document. */ + error_code error; + size_t batch_start{0}; + size_t doc_index{}; + + #ifdef SIMDJSON_THREADS_ENABLED + /** Indicates whether we use threads. Note that this needs to be a constant during the execution of the parsing. */ + bool use_thread; + + inline void load_from_stage1_thread() noexcept; + + /** Start a thread to run stage 1 on the next batch. */ + inline void start_stage1_thread() noexcept; + + /** Wait for the stage 1 thread to finish and capture the results. */ + inline void finish_stage1_thread() noexcept; + + /** The error returned from the stage 1 thread. */ + error_code stage1_thread_error{UNINITIALIZED}; + /** The thread used to run stage 1 against the next batch in the background. */ + std::unique_ptr worker{new(std::nothrow) stage1_worker()}; + /** + * The parser used to run stage 1 in the background. Will be swapped + * with the regular parser when finished. + */ + ondemand::parser stage1_thread_parser{}; + + friend struct stage1_worker; + #endif // SIMDJSON_THREADS_ENABLED + + friend class parser; + friend class document; + friend class json_iterator; + friend struct simdjson_result; + friend struct internal::simdjson_result_base; +}; // document_stream + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::document_stream &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H +/* end file simdjson/generic/ondemand/document_stream.h for fallback */ +/* including simdjson/generic/ondemand/field.h for fallback: #include "simdjson/generic/ondemand/field.h" */ +/* begin file simdjson/generic/ondemand/field.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * A JSON field (key/value pair) in an object. + * + * Returned from object iteration. + * + * Extends from std::pair so you can use C++ algorithms that rely on pairs. + */ +class field : public std::pair { +public: + /** + * Create a new invalid field. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline field() noexcept; + + /** + * Get the key as a string_view (for higher speed, consider raw_key). + * We deliberately use a more cumbersome name (unescaped_key) to force users + * to think twice about using it. + * + * This consumes the key: once you have called unescaped_key(), you cannot + * call it again nor can you call key(). + */ + simdjson_inline simdjson_warn_unused simdjson_result unescaped_key(bool allow_replacement) noexcept; + /** + * Get the key as a raw_json_string. Can be used for direct comparison with + * an unescaped C string: e.g., key() == "test". + */ + simdjson_inline raw_json_string key() const noexcept; + /** + * Get the field value. + */ + simdjson_inline ondemand::value &value() & noexcept; + /** + * @overload ondemand::value &ondemand::value() & noexcept + */ + simdjson_inline ondemand::value value() && noexcept; + +protected: + simdjson_inline field(raw_json_string key, ondemand::value &&value) noexcept; + static simdjson_inline simdjson_result start(value_iterator &parent_iter) noexcept; + static simdjson_inline simdjson_result start(const value_iterator &parent_iter, raw_json_string key) noexcept; + friend struct simdjson_result; + friend class object_iterator; +}; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::field &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result unescaped_key(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result key() noexcept; + simdjson_inline simdjson_result value() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_H +/* end file simdjson/generic/ondemand/field.h for fallback */ +/* including simdjson/generic/ondemand/object.h for fallback: #include "simdjson/generic/ondemand/object.h" */ +/* begin file simdjson/generic/ondemand/object.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +/** + * A forward-only JSON object field iterator. + */ +class object { +public: + /** + * Create a new invalid object. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a + * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an object + * instance: there is no rewind and no invalidation. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + + /** + * Reset the iterator so that we are pointing back at the + * beginning of the object. You should still consume values only once even if you + * can iterate through the object more than once. If you unescape a string within + * the object more than once, you have unsafe code. Note that rewinding an object + * means that you may need to reparse it anew: it is not a free operation. + * + * @returns true if the object contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * This method scans the beginning of the object and checks whether the + * object is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + inline simdjson_result is_empty() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Consumes the object and returns a string_view instance corresponding to the + * object as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + +protected: + /** + * Go to the end of the object, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + static simdjson_inline object resume(const value_iterator &iter) noexcept; + simdjson_inline object(const value_iterator &iter) noexcept; + + simdjson_warn_unused simdjson_inline error_code find_field_raw(const std::string_view key) noexcept; + + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::object &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + inline simdjson_result reset() noexcept; + inline simdjson_result is_empty() noexcept; + inline simdjson_result count_fields() & noexcept; + inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_H +/* end file simdjson/generic/ondemand/object.h for fallback */ +/* including simdjson/generic/ondemand/object_iterator.h for fallback: #include "simdjson/generic/ondemand/object_iterator.h" */ +/* begin file simdjson/generic/ondemand/object_iterator.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +class object_iterator { +public: + /** + * Create a new invalid object_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object_iterator() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline simdjson_result operator*() noexcept; + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const object_iterator &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const object_iterator &) const noexcept; + // Checks for ']' and ',' + simdjson_inline object_iterator &operator++() noexcept; + +private: + /** + * The underlying JSON iterator. + * + * PERF NOTE: expected to be elided in favor of the parent document: this is set when the object + * is first used, and never changes afterwards. + */ + value_iterator iter{}; + + simdjson_inline object_iterator(const value_iterator &iter) noexcept; + friend struct simdjson_result; + friend class object; +}; + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public fallback::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(fallback::ondemand::object_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + // Checks for ']' and ',' + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H +/* end file simdjson/generic/ondemand/object_iterator.h for fallback */ +/* including simdjson/generic/ondemand/serialization.h for fallback: #include "simdjson/generic/ondemand/serialization.h" */ +/* begin file simdjson/generic/ondemand/serialization.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Create a string-view instance out of a document instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(fallback::ondemand::document& x) noexcept; +/** + * Create a string-view instance out of a value instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. The value must + * not have been accessed previously. It does not + * validate the content. + */ +inline simdjson_result to_json_string(fallback::ondemand::value& x) noexcept; +/** + * Create a string-view instance out of an object instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(fallback::ondemand::object& x) noexcept; +/** + * Create a string-view instance out of an array instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(fallback::ondemand::array& x) noexcept; +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +} // namespace simdjson + +/** + * We want to support argument-dependent lookup (ADL). + * Hence we should define operator<< in the namespace + * where the argument (here value, object, etc.) resides. + * Credit: @madhur4127 + * See https://github.com/simdjson/simdjson/issues/1768 + */ +namespace simdjson { namespace fallback { namespace ondemand { + +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The element. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::value x); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::array value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::document& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::document_reference& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The object. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::object value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +}}} // namespace simdjson::fallback::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H +/* end file simdjson/generic/ondemand/serialization.h for fallback */ + +// Inline definitions +/* including simdjson/generic/ondemand/array-inl.h for fallback: #include "simdjson/generic/ondemand/array-inl.h" */ +/* begin file simdjson/generic/ondemand/array-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter->depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the array is first found and the iterator is just past the `{`. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the `,` before the next value (or `]`). In this state, +// depth == iter->depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter->depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter->depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the array iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet element may be missing or not be an +// array--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter->depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between elements, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter->depth == depth, and at_start == false. +// +// ## Terminal State +// +// The terminal state has iter->depth < depth. at_start is always false. +// +// - Finished: When we have reached a `]` or have reported an error, we are finished. We signal this +// by decrementing depth. In this state, iter->depth < depth, at_start == false, and +// error == SUCCESS. +// + +simdjson_inline array::array(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result array::start(value_iterator &iter) noexcept { + // We don't need to know if the array is empty to start iteration, but we do want to know if there + // is an error--thus `simdjson_unused`. + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::start_root(value_iterator &iter) noexcept { + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_root_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::started(value_iterator &iter) noexcept { + bool has_value; + SIMDJSON_TRY(iter.started_array().get(has_value)); + return array(iter); +} + +simdjson_inline simdjson_result array::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return array_iterator(iter); +} +simdjson_inline simdjson_result array::end() noexcept { + return array_iterator(iter); +} +simdjson_inline error_code array::consume() noexcept { + auto error = iter.json_iter().skip_child(iter.depth()-1); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result array::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter._json_iter->unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline simdjson_result array::count_elements() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the array after counting the number of elements. + iter.reset_array(); + return count; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline simdjson_result array::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_array().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +inline simdjson_result array::reset() & noexcept { + return iter.reset_array(); +} + +inline simdjson_result array::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } + + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } + + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" + + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + // Get the child + auto child = at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; + } + + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); + } + return child; +} + +simdjson_inline simdjson_result array::at(size_t index) noexcept { + size_t i = 0; + for (auto value : *this) { + if (i == index) { return value; } + i++; + } + return INDEX_OUT_OF_BOUNDS; +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + fallback::ondemand::array &&value +) noexcept + : implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept + : implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::is_empty() & noexcept { + if (error()) { return error(); } + return first.is_empty(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H +/* end file simdjson/generic/ondemand/array-inl.h for fallback */ +/* including simdjson/generic/ondemand/array_iterator-inl.h for fallback: #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/array_iterator-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result array_iterator::operator*() noexcept { + if (iter.error()) { iter.abandon(); return iter.error(); } + return value(iter.child()); +} +simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept { + return iter.is_open(); +} +simdjson_inline array_iterator &array_iterator::operator++() noexcept { + error_code error; + // PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here. + // However, it does not seem to make a perf difference, so we add it out of an abundance of caution. + if (( error = iter.error() )) { return *this; } + if (( error = iter.skip_child() )) { return *this; } + if (( error = iter.has_next_element().error() )) { return *this; } + return *this; +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + fallback::ondemand::array_iterator &&value +) noexcept + : fallback::implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : fallback::implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++(first); + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/array_iterator-inl.h for fallback */ +/* including simdjson/generic/ondemand/document-inl.h for fallback: #include "simdjson/generic/ondemand/document-inl.h" */ +/* begin file simdjson/generic/ondemand/document-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline document::document(ondemand::json_iterator &&_iter) noexcept + : iter{std::forward(_iter)} +{ + logger::log_start_value(iter, "document"); +} + +simdjson_inline document document::start(json_iterator &&iter) noexcept { + return document(std::forward(iter)); +} + +inline void document::rewind() noexcept { + iter.rewind(); +} + +inline std::string document::to_debug_string() noexcept { + return iter.to_string(); +} + +inline simdjson_result document::current_location() const noexcept { + return iter.current_location(); +} + +inline int32_t document::current_depth() const noexcept { + return iter.depth(); +} + +inline bool document::at_end() const noexcept { + return iter.at_end(); +} + + +inline bool document::is_alive() noexcept { + return iter.is_alive(); +} +simdjson_inline value_iterator document::resume_value_iterator() noexcept { + return value_iterator(&iter, 1, iter.root_position()); +} +simdjson_inline value_iterator document::get_root_value_iterator() noexcept { + return resume_value_iterator(); +} +simdjson_inline simdjson_result document::start_or_resume_object() noexcept { + if (iter.at_root()) { + return get_object(); + } else { + return object::resume(resume_value_iterator()); + } +} +simdjson_inline simdjson_result document::get_value() noexcept { + // Make sure we start any arrays or objects before returning, so that start_root_() + // gets called. + iter.assert_at_document_depth(); + switch (*iter.peek()) { + case '[': { + // The following lines check that the document ends with ]. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_array(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + case '{': { + // The following lines would check that the document ends with }. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_object(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + default: + // Unfortunately, scalar documents are a special case in simdjson and they cannot + // be safely converted to value instances. + return SCALAR_DOCUMENT_AS_VALUE; + } +} +simdjson_inline simdjson_result document::get_array() & noexcept { + auto value = get_root_value_iterator(); + return array::start_root(value); +} +simdjson_inline simdjson_result document::get_object() & noexcept { + auto value = get_root_value_iterator(); + return object::start_root(value); +} + +/** + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. We want to disallow trailing + * content. + * Thus, in several implementations below, we pass a 'true' parameter value to + * a get_root_value_iterator() method: this indicates that we disallow trailing content. + */ + +simdjson_inline simdjson_result document::get_uint64() noexcept { + return get_root_value_iterator().get_root_uint64(true); +} +simdjson_inline simdjson_result document::get_uint64_in_string() noexcept { + return get_root_value_iterator().get_root_uint64_in_string(true); +} +simdjson_inline simdjson_result document::get_int64() noexcept { + return get_root_value_iterator().get_root_int64(true); +} +simdjson_inline simdjson_result document::get_int64_in_string() noexcept { + return get_root_value_iterator().get_root_int64_in_string(true); +} +simdjson_inline simdjson_result document::get_double() noexcept { + return get_root_value_iterator().get_root_double(true); +} +simdjson_inline simdjson_result document::get_double_in_string() noexcept { + return get_root_value_iterator().get_root_double_in_string(true); +} +simdjson_inline simdjson_result document::get_string(bool allow_replacement) noexcept { + return get_root_value_iterator().get_root_string(true, allow_replacement); +} +simdjson_inline simdjson_result document::get_wobbly_string() noexcept { + return get_root_value_iterator().get_root_wobbly_string(true); +} +simdjson_inline simdjson_result document::get_raw_json_string() noexcept { + return get_root_value_iterator().get_root_raw_json_string(true); +} +simdjson_inline simdjson_result document::get_bool() noexcept { + return get_root_value_iterator().get_root_bool(true); +} +simdjson_inline simdjson_result document::is_null() noexcept { + return get_root_value_iterator().is_root_null(true); +} + +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_array(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_object(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_double(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_bool(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_value(); } + +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_double(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_uint64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_int64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_bool(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_value(); } + +template simdjson_inline error_code document::get(T &out) & noexcept { + return get().get(out); +} +template simdjson_inline error_code document::get(T &out) && noexcept { + return std::forward(*this).get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document::operator array() & noexcept(false) { return get_array(); } +simdjson_inline document::operator object() & noexcept(false) { return get_object(); } +simdjson_inline document::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document::operator double() noexcept(false) { return get_double(); } +simdjson_inline document::operator std::string_view() noexcept(false) { return get_string(false); } +simdjson_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); } +simdjson_inline document::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document::operator value() noexcept(false) { return get_value(); } + +#endif +simdjson_inline simdjson_result document::count_elements() & noexcept { + auto a = get_array(); + simdjson_result answer = a.count_elements(); + /* If there was an array, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::count_fields() & noexcept { + auto a = get_object(); + simdjson_result answer = a.count_fields(); + /* If there was an object, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::at(size_t index) & noexcept { + auto a = get_array(); + return a.at(index); +} +simdjson_inline simdjson_result document::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result document::end() & noexcept { + return {}; +} + +simdjson_inline simdjson_result document::find_field(std::string_view key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field(const char *key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field_unordered(std::string_view key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::find_field_unordered(const char *key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::operator[](std::string_view key) & noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result document::operator[](const char *key) & noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline error_code document::consume() noexcept { + auto error = iter.skip_child(0); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result document::raw_json() noexcept { + auto _iter = get_root_value_iterator(); + const uint8_t * starting_point{_iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter.unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result document::type() noexcept { + return get_root_value_iterator().type(); +} + +simdjson_inline simdjson_result document::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool document::is_negative() noexcept { + return get_root_value_iterator().is_root_negative(); +} + +simdjson_inline simdjson_result document::is_integer() noexcept { + return get_root_value_iterator().is_root_integer(true); +} + +simdjson_inline simdjson_result document::get_number_type() noexcept { + return get_root_value_iterator().get_root_number_type(true); +} + +simdjson_inline simdjson_result document::get_number() noexcept { + return get_root_value_iterator().get_root_number(true); +} + + +simdjson_inline simdjson_result document::raw_json_token() noexcept { + auto _iter = get_root_value_iterator(); + return std::string_view(reinterpret_cast(_iter.peek_start()), _iter.peek_start_length()); +} + +simdjson_inline simdjson_result document::at_pointer(std::string_view json_pointer) noexcept { + rewind(); // Rewind the document each time at_pointer is called + if (json_pointer.empty()) { + return this->get_value(); + } + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + fallback::ondemand::document &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base( + error + ) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template +simdjson_inline simdjson_result simdjson_result::get() & noexcept { + if (error()) { return error(); } + return first.get(); +} +template +simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first).get(); +} +template +simdjson_inline error_code simdjson_result::get(T &out) & noexcept { + if (error()) { return error(); } + return first.get(out); +} +template +simdjson_inline error_code simdjson_result::get(T &out) && noexcept { + if (error()) { return error(); } + return std::forward(first).get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() & noexcept = delete; +template<> simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first); +} +template<> simdjson_inline error_code simdjson_result::get(fallback::ondemand::document &out) & noexcept = delete; +template<> simdjson_inline error_code simdjson_result::get(fallback::ondemand::document &out) && noexcept { + if (error()) { return error(); } + out = std::forward(first); + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} + +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} + + +simdjson_inline bool simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} + +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} + +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} + +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} + + +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator fallback::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator fallback::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator fallback::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator fallback::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline bool simdjson_result::at_end() const noexcept { + if (error()) { return error(); } + return first.at_end(); +} + + +simdjson_inline int32_t simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline document_reference::document_reference() noexcept : doc{nullptr} {} +simdjson_inline document_reference::document_reference(document &d) noexcept : doc(&d) {} +simdjson_inline void document_reference::rewind() noexcept { doc->rewind(); } +simdjson_inline simdjson_result document_reference::get_array() & noexcept { return doc->get_array(); } +simdjson_inline simdjson_result document_reference::get_object() & noexcept { return doc->get_object(); } +/** + * The document_reference instances are used primarily/solely for streams of JSON + * documents. + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. + * + * However, for streams of JSON documents, we want to be able to start from + * "321" "321" "321" + * and parse it successfully as a stream of JSON documents, calling get_uint64_in_string() + * successfully each time. + * + * To achieve this result, we pass a 'false' to a get_root_value_iterator() method: + * this indicates that we allow trailing content. + */ +simdjson_inline simdjson_result document_reference::get_uint64() noexcept { return doc->get_root_value_iterator().get_root_uint64(false); } +simdjson_inline simdjson_result document_reference::get_uint64_in_string() noexcept { return doc->get_root_value_iterator().get_root_uint64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_int64() noexcept { return doc->get_root_value_iterator().get_root_int64(false); } +simdjson_inline simdjson_result document_reference::get_int64_in_string() noexcept { return doc->get_root_value_iterator().get_root_int64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_double() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_double_in_string() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_string(bool allow_replacement) noexcept { return doc->get_root_value_iterator().get_root_string(false, allow_replacement); } +simdjson_inline simdjson_result document_reference::get_wobbly_string() noexcept { return doc->get_root_value_iterator().get_root_wobbly_string(false); } +simdjson_inline simdjson_result document_reference::get_raw_json_string() noexcept { return doc->get_root_value_iterator().get_root_raw_json_string(false); } +simdjson_inline simdjson_result document_reference::get_bool() noexcept { return doc->get_root_value_iterator().get_root_bool(false); } +simdjson_inline simdjson_result document_reference::get_value() noexcept { return doc->get_value(); } +simdjson_inline simdjson_result document_reference::is_null() noexcept { return doc->get_root_value_iterator().is_root_null(false); } + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document_reference::operator array() & noexcept(false) { return array(*doc); } +simdjson_inline document_reference::operator object() & noexcept(false) { return object(*doc); } +simdjson_inline document_reference::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document_reference::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document_reference::operator double() noexcept(false) { return get_double(); } +simdjson_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); } +simdjson_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); } +simdjson_inline document_reference::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document_reference::operator value() noexcept(false) { return value(*doc); } +#endif +simdjson_inline simdjson_result document_reference::count_elements() & noexcept { return doc->count_elements(); } +simdjson_inline simdjson_result document_reference::count_fields() & noexcept { return doc->count_fields(); } +simdjson_inline simdjson_result document_reference::at(size_t index) & noexcept { return doc->at(index); } +simdjson_inline simdjson_result document_reference::begin() & noexcept { return doc->begin(); } +simdjson_inline simdjson_result document_reference::end() & noexcept { return doc->end(); } +simdjson_inline simdjson_result document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::type() noexcept { return doc->type(); } +simdjson_inline simdjson_result document_reference::is_scalar() noexcept { return doc->is_scalar(); } +simdjson_inline simdjson_result document_reference::current_location() noexcept { return doc->current_location(); } +simdjson_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); } +simdjson_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); } +simdjson_inline simdjson_result document_reference::is_integer() noexcept { return doc->get_root_value_iterator().is_root_integer(false); } +simdjson_inline simdjson_result document_reference::get_number_type() noexcept { return doc->get_root_value_iterator().get_root_number_type(false); } +simdjson_inline simdjson_result document_reference::get_number() noexcept { return doc->get_root_value_iterator().get_root_number(false); } +simdjson_inline simdjson_result document_reference::raw_json_token() noexcept { return doc->raw_json_token(); } +simdjson_inline simdjson_result document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); } +simdjson_inline simdjson_result document_reference::raw_json() noexcept { return doc->raw_json();} +simdjson_inline document_reference::operator document&() const noexcept { return *doc; } + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + + + +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(fallback::ondemand::document_reference value, error_code error) + noexcept : implementation_simdjson_result_base(std::forward(value), error) {} + + +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator fallback::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator fallback::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator fallback::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator fallback::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H +/* end file simdjson/generic/ondemand/document-inl.h for fallback */ +/* including simdjson/generic/ondemand/document_stream-inl.h for fallback: #include "simdjson/generic/ondemand/document_stream-inl.h" */ +/* begin file simdjson/generic/ondemand/document_stream-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace fallback { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void stage1_worker::finish() { + // After calling "run" someone would call finish() to wait + // for the end of the processing. + // This function will wait until either the thread has done + // the processing or, else, the destructor has been called. + std::unique_lock lock(locking_mutex); + cond_var.wait(lock, [this]{return has_work == false;}); +} + +inline stage1_worker::~stage1_worker() { + // The thread may never outlive the stage1_worker instance + // and will always be stopped/joined before the stage1_worker + // instance is gone. + stop_thread(); +} + +inline void stage1_worker::start_thread() { + std::unique_lock lock(locking_mutex); + if(thread.joinable()) { + return; // This should never happen but we never want to create more than one thread. + } + thread = std::thread([this]{ + while(true) { + std::unique_lock thread_lock(locking_mutex); + // We wait for either "run" or "stop_thread" to be called. + cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); + // If, for some reason, the stop_thread() method was called (i.e., the + // destructor of stage1_worker is called, then we want to immediately destroy + // the thread (and not do any more processing). + if(!can_work) { + break; + } + this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, + this->_next_batch_start); + this->has_work = false; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify "finish" + thread_lock.unlock(); + } + } + ); +} + + +inline void stage1_worker::stop_thread() { + std::unique_lock lock(locking_mutex); + // We have to make sure that all locks can be released. + can_work = false; + has_work = false; + cond_var.notify_all(); + lock.unlock(); + if(thread.joinable()) { + thread.join(); + } +} + +inline void stage1_worker::run(document_stream * ds, parser * stage1, size_t next_batch_start) { + std::unique_lock lock(locking_mutex); + owner = ds; + _next_batch_start = next_batch_start; + stage1_thread_parser = stage1; + has_work = true; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify the thread lock that we have work + lock.unlock(); +} + +#endif // SIMDJSON_THREADS_ENABLED + +simdjson_inline document_stream::document_stream( + ondemand::parser &_parser, + const uint8_t *_buf, + size_t _len, + size_t _batch_size, + bool _allow_comma_separated +) noexcept + : parser{&_parser}, + buf{_buf}, + len{_len}, + batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, + allow_comma_separated{_allow_comma_separated}, + error{SUCCESS} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change + #endif +{ +#ifdef SIMDJSON_THREADS_ENABLED + if(worker.get() == nullptr) { + error = MEMALLOC; + } +#endif +} + +simdjson_inline document_stream::document_stream() noexcept + : parser{nullptr}, + buf{nullptr}, + len{0}, + batch_size{0}, + allow_comma_separated{false}, + error{UNINITIALIZED} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(false) + #endif +{ +} + +simdjson_inline document_stream::~document_stream() noexcept +{ + #ifdef SIMDJSON_THREADS_ENABLED + worker.reset(); + #endif +} + +inline size_t document_stream::size_in_bytes() const noexcept { + return len; +} + +inline size_t document_stream::truncated_bytes() const noexcept { + if(error == CAPACITY) { return len - batch_start; } + return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; +} + +simdjson_inline document_stream::iterator::iterator() noexcept + : stream{nullptr}, finished{true} { +} + +simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept + : stream{_stream}, finished{is_end} { +} + +simdjson_inline simdjson_result document_stream::iterator::operator*() noexcept { + //if(stream->error) { return stream->error; } + return simdjson_result(stream->doc, stream->error); +} + +simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { + // If there is an error, then we want the iterator + // to be finished, no matter what. (E.g., we do not + // keep generating documents with errors, or go beyond + // a document with errors.) + // + // Users do not have to call "operator*()" when they use operator++, + // so we need to end the stream in the operator++ function. + // + // Note that setting finished = true is essential otherwise + // we would enter an infinite loop. + if (stream->error) { finished = true; } + // Note that stream->error() is guarded against error conditions + // (it will immediately return if stream->error casts to false). + // In effect, this next function does nothing when (stream->error) + // is true (hence the risk of an infinite loop). + stream->next(); + // If that was the last document, we're finished. + // It is the only type of error we do not want to appear + // in operator*. + if (stream->error == EMPTY) { finished = true; } + // If we had any other kind of error (not EMPTY) then we want + // to pass it along to the operator* and we cannot mark the result + // as "finished" just yet. + return *this; +} + +simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { + return finished != other.finished; +} + +simdjson_inline document_stream::iterator document_stream::begin() noexcept { + start(); + // If there are no documents, we're finished. + return iterator(this, error == EMPTY); +} + +simdjson_inline document_stream::iterator document_stream::end() noexcept { + return iterator(this, true); +} + +inline void document_stream::start() noexcept { + if (error) { return; } + error = parser->allocate(batch_size); + if (error) { return; } + // Always run the first stage 1 parse immediately + batch_start = 0; + error = run_stage1(*parser, batch_start); + while(error == EMPTY) { + // In exceptional cases, we may start with an empty block + batch_start = next_batch_start(); + if (batch_start >= len) { return; } + error = run_stage1(*parser, batch_start); + } + if (error) { return; } + doc_index = batch_start; + doc = document(json_iterator(&buf[batch_start], parser)); + doc.iter._streaming = true; + + #ifdef SIMDJSON_THREADS_ENABLED + if (use_thread && next_batch_start() < len) { + // Kick off the first thread on next batch if needed + error = stage1_thread_parser.allocate(batch_size); + if (error) { return; } + worker->start_thread(); + start_stage1_thread(); + if (error) { return; } + } + #endif // SIMDJSON_THREADS_ENABLED +} + +inline void document_stream::next() noexcept { + // We always enter at once once in an error condition. + if (error) { return; } + next_document(); + if (error) { return; } + auto cur_struct_index = doc.iter._root - parser->implementation->structural_indexes.get(); + doc_index = batch_start + parser->implementation->structural_indexes[cur_struct_index]; + + // Check if at end of structural indexes (i.e. at end of batch) + if(cur_struct_index >= static_cast(parser->implementation->n_structural_indexes)) { + error = EMPTY; + // Load another batch (if available) + while (error == EMPTY) { + batch_start = next_batch_start(); + if (batch_start >= len) { break; } + #ifdef SIMDJSON_THREADS_ENABLED + if(use_thread) { + load_from_stage1_thread(); + } else { + error = run_stage1(*parser, batch_start); + } + #else + error = run_stage1(*parser, batch_start); + #endif + /** + * Whenever we move to another window, we need to update all pointers to make + * it appear as if the input buffer started at the beginning of the window. + * + * Take this input: + * + * {"z":5} {"1":1,"2":2,"4":4} [7, 10, 9] [15, 11, 12, 13] [154, 110, 112, 1311] + * + * Say you process the following window... + * + * '{"z":5} {"1":1,"2":2,"4":4} [7, 10, 9]' + * + * When you do so, the json_iterator has a pointer at the beginning of the memory region + * (pointing at the beginning of '{"z"...'. + * + * When you move to the window that starts at... + * + * '[7, 10, 9] [15, 11, 12, 13] ... + * + * then it is not sufficient to just run stage 1. You also need to re-anchor the + * json_iterator so that it believes we are starting at '[7, 10, 9]...'. + * + * Under the DOM front-end, this gets done automatically because the parser owns + * the pointer the data, and when you call stage1 and then stage2 on the same + * parser, then stage2 will run on the pointer acquired by stage1. + * + * That is, stage1 calls "this->buf = _buf" so the parser remembers the buffer that + * we used. But json_iterator has no callback when stage1 is called on the parser. + * In fact, I think that the parser is unaware of json_iterator. + * + * + * So we need to re-anchor the json_iterator after each call to stage 1 so that + * all of the pointers are in sync. + */ + doc.iter = json_iterator(&buf[batch_start], parser); + doc.iter._streaming = true; + /** + * End of resync. + */ + + if (error) { continue; } // If the error was EMPTY, we may want to load another batch. + doc_index = batch_start; + } + } +} + +inline void document_stream::next_document() noexcept { + // Go to next place where depth=0 (document depth) + error = doc.iter.skip_child(0); + if (error) { return; } + // Always set depth=1 at the start of document + doc.iter._depth = 1; + // consume comma if comma separated is allowed + if (allow_comma_separated) { doc.iter.consume_character(','); } + // Resets the string buffer at the beginning, thus invalidating the strings. + doc.iter._string_buf_loc = parser->string_buf.get(); + doc.iter._root = doc.iter.position(); +} + +inline size_t document_stream::next_batch_start() const noexcept { + return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; +} + +inline error_code document_stream::run_stage1(ondemand::parser &p, size_t _batch_start) noexcept { + // This code only updates the structural index in the parser, it does not update any json_iterator + // instance. + size_t remaining = len - _batch_start; + if (remaining <= batch_size) { + return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); + } else { + return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); + } +} + +simdjson_inline size_t document_stream::iterator::current_index() const noexcept { + return stream->doc_index; +} + +simdjson_inline std::string_view document_stream::iterator::source() const noexcept { + auto depth = stream->doc.iter.depth(); + auto cur_struct_index = stream->doc.iter._root - stream->parser->implementation->structural_indexes.get(); + + // If at root, process the first token to determine if scalar value + if (stream->doc.iter.at_root()) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': // Depth=1 already at start of document + break; + case '}': case ']': + depth--; + break; + default: // Scalar value document + // TODO: Remove any trailing whitespaces + // This returns a string spanning from start of value to the beginning of the next document (excluded) + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[++cur_struct_index] - current_index() - 1); + } + cur_struct_index++; + } + + while (cur_struct_index <= static_cast(stream->parser->implementation->n_structural_indexes)) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': + depth++; + break; + case '}': case ']': + depth--; + break; + } + if (depth == 0) { break; } + cur_struct_index++; + } + + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);; +} + +inline error_code document_stream::iterator::error() const noexcept { + return stream->error; +} + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void document_stream::load_from_stage1_thread() noexcept { + worker->finish(); + // Swap to the parser that was loaded up in the thread. Make sure the parser has + // enough memory to swap to, as well. + std::swap(stage1_thread_parser,*parser); + error = stage1_thread_error; + if (error) { return; } + + // If there's anything left, start the stage 1 thread! + if (next_batch_start() < len) { + start_stage1_thread(); + } +} + +inline void document_stream::start_stage1_thread() noexcept { + // we call the thread on a lambda that will update + // this->stage1_thread_error + // there is only one thread that may write to this value + // TODO this is NOT exception-safe. + this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error + size_t _next_batch_start = this->next_batch_start(); + + worker->run(this, & this->stage1_thread_parser, _next_batch_start); +} + +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result::simdjson_result( + fallback::ondemand::document_stream &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} + +} + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H +/* end file simdjson/generic/ondemand/document_stream-inl.h for fallback */ +/* including simdjson/generic/ondemand/field-inl.h for fallback: #include "simdjson/generic/ondemand/field-inl.h" */ +/* begin file simdjson/generic/ondemand/field-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +// clang 6 doesn't think the default constructor can be noexcept, so we make it explicit +simdjson_inline field::field() noexcept : std::pair() {} + +simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept + : std::pair(key, std::forward(value)) +{ +} + +simdjson_inline simdjson_result field::start(value_iterator &parent_iter) noexcept { + raw_json_string key; + SIMDJSON_TRY( parent_iter.field_key().get(key) ); + SIMDJSON_TRY( parent_iter.field_value() ); + return field::start(parent_iter, key); +} + +simdjson_inline simdjson_result field::start(const value_iterator &parent_iter, raw_json_string key) noexcept { + return field(key, parent_iter.child()); +} + +simdjson_inline simdjson_warn_unused simdjson_result field::unescaped_key(bool allow_replacement) noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us. + simdjson_result answer = first.unescape(second.iter.json_iter(), allow_replacement); + first.consume(); + return answer; +} + +simdjson_inline raw_json_string field::key() const noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us. + return first; +} + +simdjson_inline value &field::value() & noexcept { + return second; +} + +simdjson_inline value field::value() && noexcept { + return std::forward(*this).second; +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + fallback::ondemand::field &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::key() noexcept { + if (error()) { return error(); } + return first.key(); +} +simdjson_inline simdjson_result simdjson_result::unescaped_key(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.unescaped_key(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::value() noexcept { + if (error()) { return error(); } + return std::move(first.value()); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H +/* end file simdjson/generic/ondemand/field-inl.h for fallback */ +/* including simdjson/generic/ondemand/json_iterator-inl.h for fallback: #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/json_iterator-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline json_iterator::json_iterator(json_iterator &&other) noexcept + : token(std::forward(other.token)), + parser{other.parser}, + _string_buf_loc{other._string_buf_loc}, + error{other.error}, + _depth{other._depth}, + _root{other._root}, + _streaming{other._streaming} +{ + other.parser = nullptr; +} +simdjson_inline json_iterator &json_iterator::operator=(json_iterator &&other) noexcept { + token = other.token; + parser = other.parser; + _string_buf_loc = other._string_buf_loc; + error = other.error; + _depth = other._depth; + _root = other._root; + _streaming = other._streaming; + other.parser = nullptr; + return *this; +} + +simdjson_inline json_iterator::json_iterator(const uint8_t *buf, ondemand::parser *_parser) noexcept + : token(buf, &_parser->implementation->structural_indexes[0]), + parser{_parser}, + _string_buf_loc{parser->string_buf.get()}, + _depth{1}, + _root{parser->implementation->structural_indexes.get()}, + _streaming{false} + +{ + logger::log_headers(); +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif +} + +inline void json_iterator::rewind() noexcept { + token.set_position( root_position() ); + logger::log_headers(); // We start again + _string_buf_loc = parser->string_buf.get(); + _depth = 1; +} + +inline bool json_iterator::balanced() const noexcept { + token_iterator ti(token); + int32_t count{0}; + ti.set_position( root_position() ); + while(ti.peek() <= peek_last()) { + switch (*ti.return_current_and_advance()) + { + case '[': case '{': + count++; + break; + case ']': case '}': + count--; + break; + default: + break; + } + } + return count == 0; +} + + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and parent_depth, which is a desired effect. The warning does not show up if the +// skip_child() function is not marked inline). +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept { + if (depth() <= parent_depth) { return SUCCESS; } + switch (*return_current_and_advance()) { + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + + // For the first open array/object in a value, we've already incremented depth, so keep it the same + // We never stop at colon, but if we did, it wouldn't affect depth + case '[': case '{': case ':': + logger::log_start_value(*this, "skip"); + break; + // If there is a comma, we have just finished a value in an array/object, and need to get back in + case ',': + logger::log_value(*this, "skip"); + break; + // ] or } means we just finished a value and need to jump out of the array/object + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } +#if SIMDJSON_CHECK_EOF + // If there are no more tokens, the parent is incomplete. + if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + break; + case '"': + if(*peek() == ':') { + // We are at a key!!! + // This might happen if you just started an object and you skip it immediately. + // Performance note: it would be nice to get rid of this check as it is somewhat + // expensive. + // https://github.com/simdjson/simdjson/issues/1742 + logger::log_value(*this, "key"); + return_current_and_advance(); // eat up the ':' + break; // important!!! + } + simdjson_fallthrough; + // Anything else must be a scalar value + default: + // For the first scalar, we will have incremented depth already, so we decrement it here. + logger::log_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + } + + // Now that we've considered the first value, we only increment/decrement for arrays/objects + while (position() < end_position()) { + switch (*return_current_and_advance()) { + case '[': case '{': + logger::log_start_value(*this, "skip"); + _depth++; + break; + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + default: + logger::log_value(*this, "skip", ""); + break; + } + } + + return report_error(TAPE_ERROR, "not enough close braces"); +} + +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool json_iterator::at_root() const noexcept { + return position() == root_position(); +} + +simdjson_inline bool json_iterator::is_single_token() const noexcept { + return parser->implementation->n_structural_indexes == 1; +} + +simdjson_inline bool json_iterator::streaming() const noexcept { + return _streaming; +} + +simdjson_inline token_position json_iterator::root_position() const noexcept { + return _root; +} + +simdjson_inline void json_iterator::assert_at_document_depth() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +} + +simdjson_inline void json_iterator::assert_at_root() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + // Under Visual Studio, the next SIMDJSON_ASSUME fails with: the argument + // has side effects that will be discarded. + SIMDJSON_ASSUME( token.position() == _root ); +#endif +} + +simdjson_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept { + assert_valid_position(token._position + required_tokens - 1); +} + +simdjson_inline void json_iterator::assert_valid_position(token_position position) const noexcept { +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME( position >= &parser->implementation->structural_indexes[0] ); + SIMDJSON_ASSUME( position < &parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] ); +#endif +} + +simdjson_inline bool json_iterator::at_end() const noexcept { + return position() == end_position(); +} +simdjson_inline token_position json_iterator::end_position() const noexcept { + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + return &parser->implementation->structural_indexes[n_structural_indexes]; +} + +inline std::string json_iterator::to_string() const noexcept { + if( !is_alive() ) { return "dead json_iterator instance"; } + const char * current_structural = reinterpret_cast(token.peek()); + return std::string("json_iterator [ depth : ") + std::to_string(_depth) + + std::string(", structural : '") + std::string(current_structural,1) + + std::string("', offset : ") + std::to_string(token.current_offset()) + + std::string("', error : ") + error_message(error) + + std::string(" ]"); +} + +inline simdjson_result json_iterator::current_location() const noexcept { + if (!is_alive()) { // Unrecoverable error + if (!at_root()) { + return reinterpret_cast(token.peek(-1)); + } else { + return reinterpret_cast(token.peek()); + } + } + if (at_end()) { + return OUT_OF_BOUNDS; + } + return reinterpret_cast(token.peek()); +} + +simdjson_inline bool json_iterator::is_alive() const noexcept { + return parser; +} + +simdjson_inline void json_iterator::abandon() noexcept { + parser = nullptr; + _depth = 0; +} + +simdjson_inline const uint8_t *json_iterator::return_current_and_advance() noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif // SIMDJSON_CHECK_EOF + return token.return_current_and_advance(); +} + +simdjson_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept { + // deliberately done without safety guard: + return token.peek(); +} + +simdjson_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // SIMDJSON_CHECK_EOF + return token.peek(delta); +} + +simdjson_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // #if SIMDJSON_CHECK_EOF + return token.peek_length(delta); +} + +simdjson_inline const uint8_t *json_iterator::peek(token_position position) const noexcept { + // todo: currently we require end-of-string buffering, but the following + // assert_valid_position should be turned on if/when we lift that condition. + // assert_valid_position(position); + // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF + // is ON by default, we have no choice but to disable it for real with a comment. + return token.peek(position); +} + +simdjson_inline uint32_t json_iterator::peek_length(token_position position) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_valid_position(position); +#endif // SIMDJSON_CHECK_EOF + return token.peek_length(position); +} + +simdjson_inline token_position json_iterator::last_position() const noexcept { + // The following line fails under some compilers... + // SIMDJSON_ASSUME(parser->implementation->n_structural_indexes > 0); + // since it has side-effects. + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + SIMDJSON_ASSUME(n_structural_indexes > 0); + return &parser->implementation->structural_indexes[n_structural_indexes - 1]; +} +simdjson_inline const uint8_t *json_iterator::peek_last() const noexcept { + return token.peek(last_position()); +} + +simdjson_inline void json_iterator::ascend_to(depth_t parent_depth) noexcept { + SIMDJSON_ASSUME(parent_depth >= 0 && parent_depth < INT32_MAX - 1); + SIMDJSON_ASSUME(_depth == parent_depth + 1); + _depth = parent_depth; +} + +simdjson_inline void json_iterator::descend_to(depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); + _depth = child_depth; +} + +simdjson_inline depth_t json_iterator::depth() const noexcept { + return _depth; +} + +simdjson_inline uint8_t *&json_iterator::string_buf_loc() noexcept { + return _string_buf_loc; +} + +simdjson_inline error_code json_iterator::report_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error != SUCCESS && _error != UNINITIALIZED && _error != INCORRECT_TYPE && _error != NO_SUCH_FIELD); + logger::log_error(*this, message); + error = _error; + return error; +} + +simdjson_inline token_position json_iterator::position() const noexcept { + return token.position(); +} + +simdjson_inline simdjson_result json_iterator::unescape(raw_json_string in, bool allow_replacement) noexcept { + return parser->unescape(in, _string_buf_loc, allow_replacement); +} + +simdjson_inline simdjson_result json_iterator::unescape_wobbly(raw_json_string in) noexcept { + return parser->unescape_wobbly(in, _string_buf_loc); +} + +simdjson_inline void json_iterator::reenter_child(token_position position, depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); +#if SIMDJSON_DEVELOPMENT_CHECKS +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME(size_t(child_depth) < parser->max_depth()); + SIMDJSON_ASSUME(position >= parser->start_positions[child_depth]); +#endif +#endif + token.set_position(position); + _depth = child_depth; +} + +simdjson_inline error_code json_iterator::consume_character(char c) noexcept { + if (*peek() == c) { + return_current_and_advance(); + return SUCCESS; + } + return TAPE_ERROR; +} + +#if SIMDJSON_DEVELOPMENT_CHECKS + +simdjson_inline token_position json_iterator::start_position(depth_t depth) const noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + return size_t(depth) < parser->max_depth() ? parser->start_positions[depth] : 0; +} + +simdjson_inline void json_iterator::set_start_position(depth_t depth, token_position position) noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + if(size_t(depth) < parser->max_depth()) { parser->start_positions[depth] = position; } +} + +#endif + + +simdjson_inline error_code json_iterator::optional_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error == INCORRECT_TYPE || _error == NO_SUCH_FIELD); + logger::log_error(*this, message); + return _error; +} + + +simdjson_warn_unused simdjson_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept { + // This function is not expected to be called in performance-sensitive settings. + // Let us guard against silly cases: + if((N < max_len) || (N == 0)) { return false; } + // Copy to the buffer. + std::memcpy(tmpbuf, json, max_len); + if(N > max_len) { // We pad whatever remains with ' '. + std::memset(tmpbuf + max_len, ' ', N - max_len); + } + return true; +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(fallback::ondemand::json_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/json_iterator-inl.h for fallback */ +/* including simdjson/generic/ondemand/json_type-inl.h for fallback: #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* begin file simdjson/generic/ondemand/json_type-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept { + switch (type) { + case json_type::array: out << "array"; break; + case json_type::object: out << "object"; break; + case json_type::number: out << "number"; break; + case json_type::string: out << "string"; break; + case json_type::boolean: out << "boolean"; break; + case json_type::null: out << "null"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false) { + return out << type.value(); +} +#endif + + + +simdjson_inline number_type number::get_number_type() const noexcept { + return type; +} + +simdjson_inline bool number::is_uint64() const noexcept { + return get_number_type() == number_type::unsigned_integer; +} + +simdjson_inline uint64_t number::get_uint64() const noexcept { + return payload.unsigned_integer; +} + +simdjson_inline number::operator uint64_t() const noexcept { + return get_uint64(); +} + + +simdjson_inline bool number::is_int64() const noexcept { + return get_number_type() == number_type::signed_integer; +} + +simdjson_inline int64_t number::get_int64() const noexcept { + return payload.signed_integer; +} + +simdjson_inline number::operator int64_t() const noexcept { + return get_int64(); +} + +simdjson_inline bool number::is_double() const noexcept { + return get_number_type() == number_type::floating_point_number; +} + +simdjson_inline double number::get_double() const noexcept { + return payload.floating_point_number; +} + +simdjson_inline number::operator double() const noexcept { + return get_double(); +} + +simdjson_inline double number::as_double() const noexcept { + if(is_double()) { + return payload.floating_point_number; + } + if(is_int64()) { + return double(payload.signed_integer); + } + return double(payload.unsigned_integer); +} + +simdjson_inline void number::append_s64(int64_t value) noexcept { + payload.signed_integer = value; + type = number_type::signed_integer; +} + +simdjson_inline void number::append_u64(uint64_t value) noexcept { + payload.unsigned_integer = value; + type = number_type::unsigned_integer; +} + +simdjson_inline void number::append_double(double value) noexcept { + payload.floating_point_number = value; + type = number_type::floating_point_number; +} + +simdjson_inline void number::skip_double() noexcept { + type = number_type::floating_point_number; +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(fallback::ondemand::json_type &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H +/* end file simdjson/generic/ondemand/json_type-inl.h for fallback */ +/* including simdjson/generic/ondemand/logger-inl.h for fallback: #include "simdjson/generic/ondemand/logger-inl.h" */ +/* begin file simdjson/generic/ondemand/logger-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace fallback { +namespace ondemand { +namespace logger { + +static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +static constexpr const int LOG_EVENT_LEN = 20; +static constexpr const int LOG_BUFFER_LEN = 30; +static constexpr const int LOG_SMALL_BUFFER_LEN = 10; +static int log_depth = 0; // Not threadsafe. Log only. + +// Helper to turn unprintable or newline characters into spaces +static inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } +} + +template +static inline std::string string_format(const std::string& format, const Args&... args) +{ + SIMDJSON_PUSH_DISABLE_ALL_WARNINGS + int size_s = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; + auto size = static_cast(size_s); + if (size <= 0) return std::string(); + std::unique_ptr buf(new char[size]); + std::snprintf(buf.get(), size, format.c_str(), args...); + SIMDJSON_POP_DISABLE_WARNINGS + return std::string(buf.get(), buf.get() + size - 1); +} + +static inline log_level get_log_level_from_env() +{ + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + char *lvl = getenv("SIMDJSON_LOG_LEVEL"); + SIMDJSON_POP_DISABLE_WARNINGS + if (lvl && simdjson_strcasecmp(lvl, "ERROR") == 0) { return log_level::error; } + return log_level::info; +} + +static inline log_level log_threshold() +{ + static log_level threshold = get_log_level_from_env(); + return threshold; +} + +static inline bool should_log(log_level level) +{ + return level >= log_threshold(); +} + +inline void log_event(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} + +inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "", type, detail, log_level::info); +} +inline void log_value(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} + +inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "+", type, detail, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} +inline void log_start_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_line(iter, "+", type, "", delta, depth_delta, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} + +inline void log_end_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + if (LOG_ENABLED) { log_depth--; } + log_line(iter, "-", type, "", delta, depth_delta, log_level::info); +} + +inline void log_error(const json_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_line(iter, "ERROR: ", error, detail, delta, depth_delta, log_level::error); +} +inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail) noexcept { + log_line(iter, index, depth, "ERROR: ", error, detail, log_level::error); +} + +inline void log_event(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_event(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_value(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_value(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_start_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_start_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_end_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_end_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_error(const value_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_error(iter.json_iter(), error, detail, delta, depth_delta); +} + +inline void log_headers() noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(log_level::info))) { + // Technically a static variable is not thread-safe, but if you are using threads and logging... well... + static bool displayed_hint{false}; + log_depth = 0; + printf("\n"); + if (!displayed_hint) { + // We only print this helpful header once. + printf("# Logging provides the depth and position of the iterator user-visible steps:\n"); + printf("# +array says 'this is where we were when we discovered the start array'\n"); + printf( + "# -array says 'this is where we were when we ended the array'\n"); + printf("# skip says 'this is a structural or value I am skipping'\n"); + printf("# +/-skip says 'this is a start/end array or object I am skipping'\n"); + printf("#\n"); + printf("# The indentation of the terms (array, string,...) indicates the depth,\n"); + printf("# in addition to the depth being displayed.\n"); + printf("#\n"); + printf("# Every token in the document has a single depth determined by the tokens before it,\n"); + printf("# and is not affected by what the token actually is.\n"); + printf("#\n"); + printf("# Not all structural elements are presented as tokens in the logs.\n"); + printf("#\n"); + printf("# We never give control to the user within an empty array or an empty object.\n"); + printf("#\n"); + printf("# Inside an array, having a depth greater than the array's depth means that\n"); + printf("# we are pointing inside a value.\n"); + printf("# Having a depth equal to the array means that we are pointing right before a value.\n"); + printf("# Having a depth smaller than the array means that we have moved beyond the array.\n"); + displayed_hint = true; + } + printf("\n"); + printf("| %-*s ", LOG_EVENT_LEN, "Event"); + printf("| %-*s ", LOG_BUFFER_LEN, "Buffer"); + printf("| %-*s ", LOG_SMALL_BUFFER_LEN, "Next"); + // printf("| %-*s ", 5, "Next#"); + printf("| %-*s ", 5, "Depth"); + printf("| Detail "); + printf("|\n"); + + printf("|%.*s", LOG_EVENT_LEN + 2, DASHES); + printf("|%.*s", LOG_BUFFER_LEN + 2, DASHES); + printf("|%.*s", LOG_SMALL_BUFFER_LEN + 2, DASHES); + // printf("|%.*s", 5+2, DASHES); + printf("|%.*s", 5 + 2, DASHES); + printf("|--------"); + printf("|\n"); + fflush(stdout); + } + } +} + +template +inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, log_level level, Args&&... args) noexcept { + log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail, level, std::forward(args)...); +} + +template +inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, log_level level, Args&&... args) noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(level))) { + const int indent = depth * 2; + const auto buf = iter.token.buf; + auto msg = string_format(title, std::forward(args)...); + printf("| %*s%s%-*s ", indent, "", title_prefix, + LOG_EVENT_LEN - indent - int(strlen(title_prefix)), msg.c_str()); + { + // Print the current structural. + printf("| "); + // Before we begin, the index might point right before the document. + // This could be unsafe, see https://github.com/simdjson/simdjson/discussions/1938 + if (index < iter._root) { + printf("%*s", LOG_BUFFER_LEN, ""); + } else { + auto current_structural = &buf[*index]; + for (int i = 0; i < LOG_BUFFER_LEN; i++) { + printf("%c", printable_char(current_structural[i])); + } + } + printf(" "); + } + { + // Print the next structural. + printf("| "); + auto next_structural = &buf[*(index + 1)]; + for (int i = 0; i < LOG_SMALL_BUFFER_LEN; i++) { + printf("%c", printable_char(next_structural[i])); + } + printf(" "); + } + // printf("| %5u ", *(index+1)); + printf("| %5i ", depth); + printf("| %6.*s ", int(detail.size()), detail.data()); + printf("|\n"); + fflush(stdout); + } + } +} + +} // namespace logger +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H +/* end file simdjson/generic/ondemand/logger-inl.h for fallback */ +/* including simdjson/generic/ondemand/object-inl.h for fallback: #include "simdjson/generic/ondemand/object-inl.h" */ +/* begin file simdjson/generic/ondemand/object-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) & noexcept { + return find_field_unordered(key); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) && noexcept { + return std::forward(*this).find_field_unordered(key); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} + +simdjson_inline simdjson_result object::start(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_object().error() ); + return object(iter); +} +simdjson_inline simdjson_result object::start_root(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_root_object().error() ); + return object(iter); +} +simdjson_inline error_code object::consume() noexcept { + if(iter.is_at_key()) { + /** + * whenever you are pointing at a key, calling skip_child() is + * unsafe because you will hit a string and you will assume that + * it is string value, and this mistake will lead you to make bad + * depth computation. + */ + /** + * We want to 'consume' the key. We could really + * just do _json_iter->return_current_and_advance(); at this + * point, but, for clarity, we will use the high-level API to + * eat the key. We assume that the compiler optimizes away + * most of the work. + */ + simdjson_unused raw_json_string actual_key; + auto error = iter.field_key().get(actual_key); + if (error) { iter.abandon(); return error; }; + // Let us move to the value while we are at it. + if ((error = iter.field_value())) { iter.abandon(); return error; } + } + auto error_skip = iter.json_iter().skip_child(iter.depth()-1); + if(error_skip) { iter.abandon(); } + return error_skip; +} + +simdjson_inline simdjson_result object::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + const uint8_t * final_point{iter._json_iter->peek()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result object::started(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.started_object().error() ); + return object(iter); +} + +simdjson_inline object object::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline object::object(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result object::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return object_iterator(iter); +} +simdjson_inline simdjson_result object::end() noexcept { + return object_iterator(iter); +} + +inline simdjson_result object::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; + + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); + } + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = find_field(unescaped); // Take note find_field does not unescape keys when matching + } else { + child = find_field(key); + } + if(child.error()) { + return child; // we do not continue if there was an error + } + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); + } + return child; +} + +simdjson_inline simdjson_result object::count_fields() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the object after counting the number of elements. + iter.reset_object(); + return count; +} + +simdjson_inline simdjson_result object::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_object().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +simdjson_inline simdjson_result object::reset() & noexcept { + return iter.reset_object(); +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(fallback::ondemand::object &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first)[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +inline simdjson_result simdjson_result::reset() noexcept { + if (error()) { return error(); } + return first.reset(); +} + +inline simdjson_result simdjson_result::is_empty() noexcept { + if (error()) { return error(); } + return first.is_empty(); +} + +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H +/* end file simdjson/generic/ondemand/object-inl.h for fallback */ +/* including simdjson/generic/ondemand/object_iterator-inl.h for fallback: #include "simdjson/generic/ondemand/object_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/object_iterator-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +// +// object_iterator +// + +simdjson_inline object_iterator::object_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result object_iterator::operator*() noexcept { + error_code error = iter.error(); + if (error) { iter.abandon(); return error; } + auto result = field::start(iter); + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (result.error()) { iter.abandon(); } + return result; +} +simdjson_inline bool object_iterator::operator==(const object_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool object_iterator::operator!=(const object_iterator &) const noexcept { + return iter.is_open(); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline object_iterator &object_iterator::operator++() noexcept { + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (!iter.is_open()) { return *this; } // Iterator will be released if there is an error + + simdjson_unused error_code error; + if ((error = iter.skip_child() )) { return *this; } + + simdjson_unused bool has_value; + if ((error = iter.has_next_field().get(has_value) )) { return *this; }; + return *this; +} +SIMDJSON_POP_DISABLE_WARNINGS + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter.depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the object is first found and the iterator is just past the {. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the , or } before the next value. In this state, +// depth == iter.depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter.depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter.depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the object iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet field may be missing or not be an +// object--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter.depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between fields, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter.depth == depth, and at_start == false. +// +// Errors that occur while reading a field to give to the user (such as when the key is not a +// string or the field is missing a colon) are yielded immediately. Depth is then decremented, +// moving to the Finished state without transitioning through an Error state at all. +// +// ## Terminal State +// +// The terminal state has iter.depth < depth. at_start is always false. +// +// - Finished: When we have reached a }, we are finished. We signal this by decrementing depth. +// In this state, iter.depth < depth, at_start == false, and error == SUCCESS. +// + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + fallback::ondemand::object_iterator &&value +) noexcept + : implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +// Checks for ']' and ',' +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++first; + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/object_iterator-inl.h for fallback */ +/* including simdjson/generic/ondemand/parser-inl.h for fallback: #include "simdjson/generic/ondemand/parser-inl.h" */ +/* begin file simdjson/generic/ondemand/parser-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string_view.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/dom/base.h" // for MINIMAL_DOCUMENT_CAPACITY */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity} { +} + +simdjson_warn_unused simdjson_inline error_code parser::allocate(size_t new_capacity, size_t new_max_depth) noexcept { + if (new_capacity > max_capacity()) { return CAPACITY; } + if (string_buf && new_capacity == capacity() && new_max_depth == max_depth()) { return SUCCESS; } + + // string_capacity copied from document::allocate + _capacity = 0; + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset(new (std::nothrow) uint8_t[string_capacity]); +#if SIMDJSON_DEVELOPMENT_CHECKS + start_positions.reset(new (std::nothrow) token_position[new_max_depth]); +#endif + if (implementation) { + SIMDJSON_TRY( implementation->set_capacity(new_capacity) ); + SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) ); + } else { + SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) ); + } + _capacity = new_capacity; + _max_depth = new_max_depth; + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length() || !string_buf) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return document::start({ reinterpret_cast(json.data()), this }); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const char *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const uint8_t *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(std::string_view json, size_t allocated) & noexcept { + return iterate(padded_string_view(json, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const std::string &json) & noexcept { + return iterate(padded_string_view(json)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + padded_string_view json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + const padded_string &json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate_raw(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length()) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return json_iterator(reinterpret_cast(json.data()), this); +} + +inline simdjson_result parser::iterate_many(const uint8_t *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + if(allow_comma_separated && batch_size < len) { batch_size = len; } + return document_stream(*this, buf, len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const char *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(reinterpret_cast(buf), len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const std::string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const padded_string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} + +simdjson_inline size_t parser::capacity() const noexcept { + return _capacity; +} +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; +} +simdjson_inline size_t parser::max_depth() const noexcept { + return _max_depth; +} + +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity < dom::MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = dom::MINIMAL_DOCUMENT_CAPACITY; + } +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement) const noexcept { + uint8_t *end = implementation->parse_string(in.buf, dst, allow_replacement); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept { + uint8_t *end = implementation->parse_wobbly_string(in.buf, dst); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(fallback::ondemand::parser &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H +/* end file simdjson/generic/ondemand/parser-inl.h for fallback */ +/* including simdjson/generic/ondemand/raw_json_string-inl.h for fallback: #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +namespace fallback { +namespace ondemand { + +simdjson_inline raw_json_string::raw_json_string(const uint8_t * _buf) noexcept : buf{_buf} {} + +simdjson_inline const char * raw_json_string::raw() const noexcept { return reinterpret_cast(buf); } + + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(std::string_view target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;pos < target.size() && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;pos < target.size();pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(const char* target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;target[pos] && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;target[pos];pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept { + // If we are going to call memcmp, then we must know something about the length of the raw_json_string. + return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); +} + +simdjson_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + if(target.size() <= SIMDJSON_PADDING) { + return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); + } + const char * r{raw()}; + size_t pos{0}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(std::string_view target) const noexcept { + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(const char * target) const noexcept { + // Assumptions: 'target' does not contain unescaped quote characters, is null terminated and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(const char* target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept { + return a.unsafe_is_equal(c); +} + +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept { + return a == c; +} + +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept { + return !(a == c); +} + +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept { + return !(a == c); +} + + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape(json_iterator &iter, bool allow_replacement) const noexcept { + return iter.unescape(*this, allow_replacement); +} + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape_wobbly(json_iterator &iter) const noexcept { + return iter.unescape_wobbly(*this); +} + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &out, const raw_json_string &str) noexcept { + bool in_escape = false; + const char *s = str.raw(); + while (true) { + switch (*s) { + case '\\': in_escape = !in_escape; break; + case '"': if (in_escape) { in_escape = false; } else { return out; } break; + default: if (in_escape) { in_escape = false; } + } + out << *s; + s++; + } +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(fallback::ondemand::raw_json_string &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::raw() const noexcept { + if (error()) { return error(); } + return first.raw(); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape(fallback::ondemand::json_iterator &iter, bool allow_replacement) const noexcept { + if (error()) { return error(); } + return first.unescape(iter, allow_replacement); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape_wobbly(fallback::ondemand::json_iterator &iter) const noexcept { + if (error()) { return error(); } + return first.unescape_wobbly(iter); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H +/* end file simdjson/generic/ondemand/raw_json_string-inl.h for fallback */ +/* including simdjson/generic/ondemand/serialization-inl.h for fallback: #include "simdjson/generic/ondemand/serialization-inl.h" */ +/* begin file simdjson/generic/ondemand/serialization-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/serialization.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +inline std::string_view trim(const std::string_view str) noexcept { + // We can almost surely do better by rolling our own find_first_not_of function. + size_t first = str.find_first_not_of(" \t\n\r"); + // If we have the empty string (just white space), then no trimming is possible, and + // we return the empty string_view. + if (std::string_view::npos == first) { return std::string_view(); } + size_t last = str.find_last_not_of(" \t\n\r"); + return str.substr(first, (last - first + 1)); +} + + +inline simdjson_result to_json_string(fallback::ondemand::document& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(fallback::ondemand::document_reference& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(fallback::ondemand::value& x) noexcept { + /** + * If we somehow receive a value that has already been consumed, + * then the following code could be in trouble. E.g., we create + * an array as needed, but if an array was already created, then + * it could be bad. + */ + using namespace fallback::ondemand; + fallback::ondemand::json_type t; + auto error = x.type().get(t); + if(error != SUCCESS) { return error; } + switch (t) + { + case json_type::array: + { + fallback::ondemand::array array; + error = x.get_array().get(array); + if(error) { return error; } + return to_json_string(array); + } + case json_type::object: + { + fallback::ondemand::object object; + error = x.get_object().get(object); + if(error) { return error; } + return to_json_string(object); + } + default: + return trim(x.raw_json_token()); + } +} + +inline simdjson_result to_json_string(fallback::ondemand::object& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(fallback::ondemand::array& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} +} // namespace simdjson + +namespace simdjson { namespace fallback { namespace ondemand { + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::document_reference& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::fallback::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif +}}} // namespace simdjson::fallback::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H +/* end file simdjson/generic/ondemand/serialization-inl.h for fallback */ +/* including simdjson/generic/ondemand/token_iterator-inl.h for fallback: #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/token_iterator-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline token_iterator::token_iterator( + const uint8_t *_buf, + token_position position +) noexcept : buf{_buf}, _position{position} +{ +} + +simdjson_inline uint32_t token_iterator::current_offset() const noexcept { + return *(_position); +} + + +simdjson_inline const uint8_t *token_iterator::return_current_and_advance() noexcept { + return &buf[*(_position++)]; +} + +simdjson_inline const uint8_t *token_iterator::peek(token_position position) const noexcept { + return &buf[*position]; +} +simdjson_inline uint32_t token_iterator::peek_index(token_position position) const noexcept { + return *position; +} +simdjson_inline uint32_t token_iterator::peek_length(token_position position) const noexcept { + return *(position+1) - *position; +} + +simdjson_inline const uint8_t *token_iterator::peek(int32_t delta) const noexcept { + return &buf[*(_position+delta)]; +} +simdjson_inline uint32_t token_iterator::peek_index(int32_t delta) const noexcept { + return *(_position+delta); +} +simdjson_inline uint32_t token_iterator::peek_length(int32_t delta) const noexcept { + return *(_position+delta+1) - *(_position+delta); +} + +simdjson_inline token_position token_iterator::position() const noexcept { + return _position; +} +simdjson_inline void token_iterator::set_position(token_position target_position) noexcept { + _position = target_position; +} + +simdjson_inline bool token_iterator::operator==(const token_iterator &other) const noexcept { + return _position == other._position; +} +simdjson_inline bool token_iterator::operator!=(const token_iterator &other) const noexcept { + return _position != other._position; +} +simdjson_inline bool token_iterator::operator>(const token_iterator &other) const noexcept { + return _position > other._position; +} +simdjson_inline bool token_iterator::operator>=(const token_iterator &other) const noexcept { + return _position >= other._position; +} +simdjson_inline bool token_iterator::operator<(const token_iterator &other) const noexcept { + return _position < other._position; +} +simdjson_inline bool token_iterator::operator<=(const token_iterator &other) const noexcept { + return _position <= other._position; +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(fallback::ondemand::token_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/token_iterator-inl.h for fallback */ +/* including simdjson/generic/ondemand/value-inl.h for fallback: #include "simdjson/generic/ondemand/value-inl.h" */ +/* begin file simdjson/generic/ondemand/value-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline value::value(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} +simdjson_inline value value::start(const value_iterator &iter) noexcept { + return iter; +} +simdjson_inline value value::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline simdjson_result value::get_array() noexcept { + return array::start(iter); +} +simdjson_inline simdjson_result value::get_object() noexcept { + return object::start(iter); +} +simdjson_inline simdjson_result value::start_or_resume_object() noexcept { + if (iter.at_start()) { + return get_object(); + } else { + return object::resume(iter); + } +} + +simdjson_inline simdjson_result value::get_raw_json_string() noexcept { + return iter.get_raw_json_string(); +} +simdjson_inline simdjson_result value::get_string(bool allow_replacement) noexcept { + return iter.get_string(allow_replacement); +} +simdjson_inline simdjson_result value::get_wobbly_string() noexcept { + return iter.get_wobbly_string(); +} +simdjson_inline simdjson_result value::get_double() noexcept { + return iter.get_double(); +} +simdjson_inline simdjson_result value::get_double_in_string() noexcept { + return iter.get_double_in_string(); +} +simdjson_inline simdjson_result value::get_uint64() noexcept { + return iter.get_uint64(); +} +simdjson_inline simdjson_result value::get_uint64_in_string() noexcept { + return iter.get_uint64_in_string(); +} +simdjson_inline simdjson_result value::get_int64() noexcept { + return iter.get_int64(); +} +simdjson_inline simdjson_result value::get_int64_in_string() noexcept { + return iter.get_int64_in_string(); +} +simdjson_inline simdjson_result value::get_bool() noexcept { + return iter.get_bool(); +} +simdjson_inline simdjson_result value::is_null() noexcept { + return iter.is_null(); +} +template<> simdjson_inline simdjson_result value::get() noexcept { return get_array(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_object(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_number(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_double(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_bool(); } + +template simdjson_inline error_code value::get(T &out) noexcept { + return get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline value::operator array() noexcept(false) { + return get_array(); +} +simdjson_inline value::operator object() noexcept(false) { + return get_object(); +} +simdjson_inline value::operator uint64_t() noexcept(false) { + return get_uint64(); +} +simdjson_inline value::operator int64_t() noexcept(false) { + return get_int64(); +} +simdjson_inline value::operator double() noexcept(false) { + return get_double(); +} +simdjson_inline value::operator std::string_view() noexcept(false) { + return get_string(false); +} +simdjson_inline value::operator raw_json_string() noexcept(false) { + return get_raw_json_string(); +} +simdjson_inline value::operator bool() noexcept(false) { + return get_bool(); +} +#endif + +simdjson_inline simdjson_result value::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result value::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result value::count_elements() & noexcept { + simdjson_result answer; + auto a = get_array(); + answer = a.count_elements(); + // count_elements leaves you pointing inside the array, at the first element. + // We need to move back so that the user can create a new array (which requires that + // we point at '['). + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::count_fields() & noexcept { + simdjson_result answer; + auto a = get_object(); + answer = a.count_fields(); + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::at(size_t index) noexcept { + auto a = get_array(); + return a.at(index); +} + +simdjson_inline simdjson_result value::find_field(std::string_view key) noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result value::find_field(const char *key) noexcept { + return start_or_resume_object().find_field(key); +} + +simdjson_inline simdjson_result value::find_field_unordered(std::string_view key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result value::find_field_unordered(const char *key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} + +simdjson_inline simdjson_result value::operator[](std::string_view key) noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result value::operator[](const char *key) noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline simdjson_result value::type() noexcept { + return iter.type(); +} + +simdjson_inline simdjson_result value::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool value::is_negative() noexcept { + return iter.is_negative(); +} + +simdjson_inline simdjson_result value::is_integer() noexcept { + return iter.is_integer(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number_type() noexcept { + return iter.get_number_type(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number() noexcept { + return iter.get_number(); +} + +simdjson_inline std::string_view value::raw_json_token() noexcept { + return std::string_view(reinterpret_cast(iter.peek_start()), iter.peek_start_length()); +} + +simdjson_inline simdjson_result value::current_location() noexcept { + return iter.json_iter().current_location(); +} + +simdjson_inline int32_t value::current_depth() const noexcept{ + return iter.json_iter().depth(); +} + +simdjson_inline simdjson_result value::at_pointer(std::string_view json_pointer) noexcept { + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + fallback::ondemand::value &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + if (error()) { return error(); } + return {}; +} + +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} + +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) noexcept { + if (error()) { return error(); } + return first[key]; +} + +simdjson_inline simdjson_result simdjson_result::get_array() noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return first.get(); +} +template simdjson_inline error_code simdjson_result::get(T &out) noexcept { + if (error()) { return error(); } + return first.get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return std::move(first); +} +template<> simdjson_inline error_code simdjson_result::get(fallback::ondemand::value &out) noexcept { + if (error()) { return error(); } + out = first; + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator fallback::ondemand::array() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator fallback::ondemand::object() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator fallback::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H +/* end file simdjson/generic/ondemand/value-inl.h for fallback */ +/* including simdjson/generic/ondemand/value_iterator-inl.h for fallback: #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/value_iterator-inl.h for fallback */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/atomparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace fallback { +namespace ondemand { + +simdjson_inline value_iterator::value_iterator( + json_iterator *json_iter, + depth_t depth, + token_position start_position +) noexcept : _json_iter{json_iter}, _depth{depth}, _start_position{start_position} +{ +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_root_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_object() noexcept { + assert_at_container_start(); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + if (*_json_iter->peek() == '}') { + logger::log_value(*_json_iter, "empty object"); + _json_iter->return_current_and_advance(); + end_container(); + return false; + } + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_object() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // object: e.g., `{"a":2} foo }`. Users concerned with garbage content should + // call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != '}') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing } at end"); + } + // If the last character is } *and* the first gibberish character is also '}' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == '}') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed object. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_object() noexcept { + auto error = check_root_object(); + if(error) { return error; } + return started_object(); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::end_container() noexcept { +#if SIMDJSON_CHECK_EOF + if (depth() > 1 && at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing parent ] or }"); } + // if (depth() <= 1 && !at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + _json_iter->ascend_to(depth()-1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_field() noexcept { + assert_at_next(); + + // It's illegal to call this unless there are more tokens: anything that ends in } or ] is + // obligated to verify there are more tokens if they are not the top level. + switch (*_json_iter->return_current_and_advance()) { + case '}': + logger::log_end_value(*_json_iter, "object"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between object fields"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_raw(const std::string_view key) noexcept { + error_code error; + bool has_value; + // + // Initially, the object can be in one of a few different places: + // + // 1. The start of the object, at the first field: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + if (at_first_field()) { + has_value = true; + + // + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + return false; + + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + if ((error = skip_child() )) { abandon(); return error; } + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + while (has_value) { + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + //if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); // Skip the value entirely + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + + // If the loop ended, we're out of fields to look at. + return false; +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_unordered_raw(const std::string_view key) noexcept { + /** + * When find_field_unordered_raw is called, we can either be pointing at the + * first key, pointing outside (at the closing brace) or if a key was matched + * we can be either pointing right afterthe ':' right before the value (that we need skip), + * or we may have consumed the value and we might be at a comma or at the + * final brace (ready for a call to has_next_field()). + */ + error_code error; + bool has_value; + + // First, we scan from that point to the end. + // If we don't find a match, we may loop back around, and scan from the beginning to that point. + token_position search_start = _json_iter->position(); + + // We want to know whether we need to go back to the beginning. + bool at_first = at_first_field(); + /////////////// + // Initially, the object can be in one of a few different places: + // + // 1. At the first key: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + // + if (at_first) { + has_value = true; + + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { + +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + SIMDJSON_TRY(reset_object().get(has_value)); + at_first = true; + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + // If someone queried a key but they not did access the value, then we are left pointing + // at the ':' and we need to move forward through the value... If the value was + // processed then skip_child() does not move the iterator (but may adjust the depth). + if ((error = skip_child() )) { abandon(); return error; } + search_start = _json_iter->position(); + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + + // After initial processing, we will be in one of two states: + // + // ``` + // // At the beginning of a field + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // At the end of the object + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // ``` + // + // Next, we find a match starting from the current position. + while (has_value) { + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + // Performance note: it maybe wasteful to rewind to the beginning when there might be + // no other query following. Indeed, it would require reskipping the whole object. + // Instead, you can just stay where you are. If there is a new query, there is always time + // to rewind. + if(at_first) { return false; } + + // If we reach the end without finding a match, search the rest of the fields starting at the + // beginning of the object. + // (We have already run through the object before, so we've already validated its structure. We + // don't check errors in this bit.) + SIMDJSON_TRY(reset_object().get(has_value)); + while (true) { + SIMDJSON_ASSUME(has_value); // we should reach search_start before ever reaching the end of the object + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + error = field_key().get(actual_key); SIMDJSON_ASSUME(!error); + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + error = field_value(); SIMDJSON_ASSUME(!error); + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // If we reached the end of the key-value pair we started from, then we know + // that the key is not there so we return false. We are either right before + // the next comma or the final brace. + if(_json_iter->position() == search_start) { return false; } + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + error = has_next_field().get(has_value); SIMDJSON_ASSUME(!error); + // If we make the mistake of exiting here, then we could be left pointing at a key + // in the middle of an object. That's not an allowable state. + } + // If the loop ended, we're out of fields to look at. The program should + // never reach this point. + return false; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::field_key() noexcept { + assert_at_next(); + + const uint8_t *key = _json_iter->return_current_and_advance(); + if (*(key++) != '"') { return report_error(TAPE_ERROR, "Object key is not a string"); } + return raw_json_string(key); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::field_value() noexcept { + assert_at_next(); + + if (*_json_iter->return_current_and_advance() != ':') { return report_error(TAPE_ERROR, "Missing colon in object field"); } + _json_iter->descend_to(depth()+1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_root_array(); +} + +inline std::string value_iterator::to_string() const noexcept { + auto answer = std::string("value_iterator [ depth : ") + std::to_string(_depth) + std::string(", "); + if(_json_iter != nullptr) { answer += _json_iter->to_string(); } + answer += std::string(" ]"); + return answer; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_array() noexcept { + assert_at_container_start(); + if (*_json_iter->peek() == ']') { + logger::log_value(*_json_iter, "empty array"); + _json_iter->return_current_and_advance(); + SIMDJSON_TRY( end_container() ); + return false; + } + _json_iter->descend_to(depth()+1); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_array() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // array: e.g., `[1, 2] foo]`. Users concerned with garbage content should + // also call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != ']') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing ] at end"); + } + // If the last character is ] *and* the first gibberish character is also ']' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == ']') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed array. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_array() noexcept { + auto error = check_root_array(); + if (error) { return error; } + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_element() noexcept { + assert_at_next(); + + logger::log_event(*this, "has_next_element"); + switch (*_json_iter->return_current_and_advance()) { + case ']': + logger::log_end_value(*_json_iter, "array"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + _json_iter->descend_to(depth()+1); + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between array elements"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_bool(const uint8_t *json) const noexcept { + auto not_true = atomparsing::str4ncmp(json, "true"); + auto not_false = atomparsing::str4ncmp(json, "fals") | (json[4] ^ 'e'); + bool error = (not_true && not_false) || jsoncharutils::is_not_structural_or_whitespace(json[not_true ? 5 : 4]); + if (error) { return incorrect_type_error("Not a boolean"); } + return simdjson_result(!not_true); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_null(const uint8_t *json) const noexcept { + bool is_null_string = !atomparsing::str4ncmp(json, "null") && jsoncharutils::is_structural_or_whitespace(json[4]); + // if we start with 'n', we must be a null + if(!is_null_string && json[0]=='n') { return incorrect_type_error("Not a null but starts with n"); } + return is_null_string; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_string(bool allow_replacement) noexcept { + return get_raw_json_string().unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_wobbly_string() noexcept { + return get_raw_json_string().unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_raw_json_string() noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64() noexcept { + auto result = numberparsing::parse_unsigned(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64_in_string() noexcept { + auto result = numberparsing::parse_unsigned_in_string(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64() noexcept { + auto result = numberparsing::parse_integer(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64_in_string() noexcept { + auto result = numberparsing::parse_integer_in_string(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double() noexcept { + auto result = numberparsing::parse_double(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double_in_string() noexcept { + auto result = numberparsing::parse_double_in_string(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_bool() noexcept { + auto result = parse_bool(peek_non_root_scalar("bool")); + if(result.error() == SUCCESS) { advance_non_root_scalar("bool"); } + return result; +} +simdjson_inline simdjson_result value_iterator::is_null() noexcept { + bool is_null_value; + SIMDJSON_TRY(parse_null(peek_non_root_scalar("null")).get(is_null_value)); + if(is_null_value) { advance_non_root_scalar("null"); } + return is_null_value; +} +simdjson_inline bool value_iterator::is_negative() noexcept { + return numberparsing::is_negative(peek_non_root_scalar("numbersign")); +} +simdjson_inline bool value_iterator::is_root_negative() noexcept { + return numberparsing::is_negative(peek_root_scalar("numbersign")); +} +simdjson_inline simdjson_result value_iterator::is_integer() noexcept { + return numberparsing::is_integer(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number_type() noexcept { + return numberparsing::get_number_type(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number() noexcept { + number num; + error_code error = numberparsing::parse_number(peek_non_root_scalar("number"), num); + if(error) { return error; } + return num; +} + +simdjson_inline simdjson_result value_iterator::is_root_integer(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("is_root_integer"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + return false; // if there are more than 20 characters, it cannot be represented as an integer. + } + auto answer = numberparsing::is_integer(tmpbuf); + // If the parsing was a success, we must still check that it is + // a single scalar. Note that we parse first because of cases like '[]' where + // getting TRAILING_CONTENT is wrong. + if(check_trailing && (answer.error() == SUCCESS) && (!_json_iter->is_single_token())) { return TRAILING_CONTENT; } + return answer; +} + +simdjson_inline simdjson_result value_iterator::get_root_number_type(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto answer = numberparsing::get_number_type(tmpbuf); + if (check_trailing && (answer.error() == SUCCESS) && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + return answer; +} +simdjson_inline simdjson_result value_iterator::get_root_number(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + number num; + error_code error = numberparsing::parse_number(tmpbuf, num); + if(error) { return error; } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("number"); + return num; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_string(bool check_trailing, bool allow_replacement) noexcept { + return get_root_raw_json_string(check_trailing).unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_wobbly_string(bool check_trailing) noexcept { + return get_root_raw_json_string(check_trailing).unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_raw_json_string(bool check_trailing) noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_bool(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("bool"); + uint8_t tmpbuf[5+1+1]; // +1 for null termination + tmpbuf[5+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 5+1)) { return incorrect_type_error("Not a boolean"); } + auto result = parse_bool(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("bool"); + } + return result; +} +simdjson_inline simdjson_result value_iterator::is_root_null(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("null"); + bool result = (max_len >= 4 && !atomparsing::str4ncmp(json, "null") && + (max_len == 4 || jsoncharutils::is_structural_or_whitespace(json[4]))); + if(result) { // we have something that looks like a null. + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("null"); + } + return result; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::skip_child() noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth >= _depth ); + + return _json_iter->skip_child(depth()); +} + +simdjson_inline value_iterator value_iterator::child() const noexcept { + assert_at_child(); + return { _json_iter, depth()+1, _json_iter->token.position() }; +} + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and iterator depth, which is a desired effect. It does not happen if is_open is +// marked non-inline. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline bool value_iterator::is_open() const noexcept { + return _json_iter->depth() >= depth(); +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool value_iterator::at_end() const noexcept { + return _json_iter->at_end(); +} + +simdjson_inline bool value_iterator::at_start() const noexcept { + return _json_iter->token.position() == start_position(); +} + +simdjson_inline bool value_iterator::at_first_field() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + return _json_iter->token.position() == start_position() + 1; +} + +simdjson_inline void value_iterator::abandon() noexcept { + _json_iter->abandon(); +} + +simdjson_warn_unused simdjson_inline depth_t value_iterator::depth() const noexcept { + return _depth; +} +simdjson_warn_unused simdjson_inline error_code value_iterator::error() const noexcept { + return _json_iter->error; +} +simdjson_warn_unused simdjson_inline uint8_t *&value_iterator::string_buf_loc() noexcept { + return _json_iter->string_buf_loc(); +} +simdjson_warn_unused simdjson_inline const json_iterator &value_iterator::json_iter() const noexcept { + return *_json_iter; +} +simdjson_warn_unused simdjson_inline json_iterator &value_iterator::json_iter() noexcept { + return *_json_iter; +} + +simdjson_inline const uint8_t *value_iterator::peek_start() const noexcept { + return _json_iter->peek(start_position()); +} +simdjson_inline uint32_t value_iterator::peek_start_length() const noexcept { + return _json_iter->peek_length(start_position()); +} + +simdjson_inline const uint8_t *value_iterator::peek_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return peek_start(); } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return; } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept { + logger::log_start_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + const uint8_t *json; + if (!is_at_start()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + json = peek_start(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + } else { + assert_at_start(); + /** + * We should be prudent. Let us peek. If it is not the right type, we + * return an error. Only once we have determined that we have the right + * type are we allowed to advance! + */ + json = _json_iter->peek(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + _json_iter->return_current_and_advance(); + } + + + return SUCCESS; +} + + +simdjson_inline const uint8_t *value_iterator::peek_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_root(); + return _json_iter->peek(); +} +simdjson_inline const uint8_t *value_iterator::peek_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_non_root_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_root(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} +simdjson_inline void value_iterator::advance_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_non_root_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::incorrect_type_error(const char *message) const noexcept { + logger::log_error(*_json_iter, start_position(), depth(), message); + return INCORRECT_TYPE; +} + +simdjson_inline bool value_iterator::is_at_start() const noexcept { + return position() == start_position(); +} + +simdjson_inline bool value_iterator::is_at_key() const noexcept { + // Keys are at the same depth as the object. + // Note here that we could be safer and check that we are within an object, + // but we do not. + return _depth == _json_iter->_depth && *_json_iter->peek() == '"'; +} + +simdjson_inline bool value_iterator::is_at_iterator_start() const noexcept { + // We can legitimately be either at the first value ([1]), or after the array if it's empty ([]). + auto delta = position() - start_position(); + return delta == 1 || delta == 2; +} + +inline void value_iterator::assert_at_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_container_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position + 1 ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_next() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +simdjson_inline void value_iterator::move_at_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position); +} + +simdjson_inline void value_iterator::move_at_container_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position + 1); +} + +simdjson_inline simdjson_result value_iterator::reset_array() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_array(); +} + +simdjson_inline simdjson_result value_iterator::reset_object() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_object(); +} + +inline void value_iterator::assert_at_child() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth + 1 ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_root() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth == 1 ); +} + +inline void value_iterator::assert_at_non_root_start() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth > 1 ); +} + +inline void value_iterator::assert_is_valid() const noexcept { + SIMDJSON_ASSUME( _json_iter != nullptr ); +} + +simdjson_inline bool value_iterator::is_valid() const noexcept { + return _json_iter != nullptr; +} + +simdjson_inline simdjson_result value_iterator::type() const noexcept { + switch (*peek_start()) { + case '{': + return json_type::object; + case '[': + return json_type::array; + case '"': + return json_type::string; + case 'n': + return json_type::null; + case 't': case 'f': + return json_type::boolean; + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return json_type::number; + default: + return TAPE_ERROR; + } +} + +simdjson_inline token_position value_iterator::start_position() const noexcept { + return _start_position; +} + +simdjson_inline token_position value_iterator::position() const noexcept { + return _json_iter->position(); +} + +simdjson_inline token_position value_iterator::end_position() const noexcept { + return _json_iter->end_position(); +} + +simdjson_inline token_position value_iterator::last_position() const noexcept { + return _json_iter->last_position(); +} + +simdjson_inline error_code value_iterator::report_error(error_code error, const char *message) noexcept { + return _json_iter->report_error(error, message); +} + +} // namespace ondemand +} // namespace fallback +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(fallback::ondemand::value_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/value_iterator-inl.h for fallback */ +/* end file simdjson/generic/ondemand/amalgamated.h for fallback */ +/* including simdjson/fallback/end.h: #include "simdjson/fallback/end.h" */ +/* begin file simdjson/fallback/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/fallback/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* undefining SIMDJSON_IMPLEMENTATION from "fallback" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/fallback/end.h */ + +#endif // SIMDJSON_FALLBACK_ONDEMAND_H +/* end file simdjson/fallback/ondemand.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(haswell) +/* including simdjson/haswell/ondemand.h: #include "simdjson/haswell/ondemand.h" */ +/* begin file simdjson/haswell/ondemand.h */ +#ifndef SIMDJSON_HASWELL_ONDEMAND_H +#define SIMDJSON_HASWELL_ONDEMAND_H + +/* including simdjson/haswell/begin.h: #include "simdjson/haswell/begin.h" */ +/* begin file simdjson/haswell/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "haswell" */ +#define SIMDJSON_IMPLEMENTATION haswell + +/* including simdjson/haswell/base.h: #include "simdjson/haswell/base.h" */ +/* begin file simdjson/haswell/base.h */ +#ifndef SIMDJSON_HASWELL_BASE_H +#define SIMDJSON_HASWELL_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_HASWELL +namespace simdjson { +/** + * Implementation for Haswell (Intel AVX2). + */ +namespace haswell { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BASE_H +/* end file simdjson/haswell/base.h */ +/* including simdjson/haswell/intrinsics.h: #include "simdjson/haswell/intrinsics.h" */ +/* begin file simdjson/haswell/intrinsics.h */ +#ifndef SIMDJSON_HASWELL_INTRINSICS_H +#define SIMDJSON_HASWELL_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m256i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for haswell kernel."); + +#endif // SIMDJSON_HASWELL_INTRINSICS_H +/* end file simdjson/haswell/intrinsics.h */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL +SIMDJSON_TARGET_REGION("avx2,bmi,pclmul,lzcnt,popcnt") +#endif + +/* including simdjson/haswell/bitmanipulation.h: #include "simdjson/haswell/bitmanipulation.h" */ +/* begin file simdjson/haswell/bitmanipulation.h */ +#ifndef SIMDJSON_HASWELL_BITMANIPULATION_H +#define SIMDJSON_HASWELL_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmask.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return _blsr_u64(input_num); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { + return int(_lzcnt_u64(input_num)); +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BITMANIPULATION_H +/* end file simdjson/haswell/bitmanipulation.h */ +/* including simdjson/haswell/bitmask.h: #include "simdjson/haswell/bitmask.h" */ +/* begin file simdjson/haswell/bitmask.h */ +#ifndef SIMDJSON_HASWELL_BITMASK_H +#define SIMDJSON_HASWELL_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_BITMASK_H +/* end file simdjson/haswell/bitmask.h */ +/* including simdjson/haswell/numberparsing_defs.h: #include "simdjson/haswell/numberparsing_defs.h" */ +/* begin file simdjson/haswell/numberparsing_defs.h */ +#ifndef SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H +#define SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace numberparsing { + +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace haswell +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_HASWELL_NUMBERPARSING_DEFS_H +/* end file simdjson/haswell/numberparsing_defs.h */ +/* including simdjson/haswell/simd.h: #include "simdjson/haswell/simd.h" */ +/* begin file simdjson/haswell/simd.h */ +#ifndef SIMDJSON_HASWELL_SIMD_H +#define SIMDJSON_HASWELL_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { +namespace simd { + + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m256i value; + + // Zero constructor + simdjson_inline base() : value{__m256i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m256i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m256i&() const { return this->value; } + simdjson_inline operator __m256i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm256_or_si256(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm256_and_si256(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm256_xor_si256(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm256_andnot_si256(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + // Forward-declared so they can be used by splat and friends. + template + struct simd8; + + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m256i _value) : base>(_value) {} + + friend simdjson_really_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm256_cmpeq_epi8(lhs, rhs); } + + static const int SIZE = sizeof(base::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm256_alignr_epi8(*this, _mm256_permute2x128_si256(prev_chunk, *this, 0x21), 16 - N); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm256_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m256i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { return _mm256_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm256_testz_si256(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm256_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm256_setzero_si256(); } + static simdjson_inline simd8 load(const T values[32]) { + return _mm256_loadu_si256(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m256i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[32]) const { return _mm256_storeu_si256(reinterpret_cast<__m256i *>(dst), *this); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm256_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm256_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm256_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint32_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in four steps, first 8 bytes and then second 8 bytes... + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // second least significant 8 bits + uint8_t mask3 = uint8_t(mask >> 16); // ... + uint8_t mask4 = uint8_t(mask >> 24); // ... + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m256i shufmask = _mm256_set_epi64x(thintable_epi8[mask4], thintable_epi8[mask3], + thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask and so forth + shufmask = + _mm256_add_epi8(shufmask, _mm256_set_epi32(0x18181818, 0x18181818, + 0x10101010, 0x10101010, 0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m256i pruned = _mm256_shuffle_epi8(*this, shufmask); + // we still need to put the pieces back together. + // we compute the popcount of the first words: + int pop1 = BitsSetTable256mul2[mask1]; + int pop3 = BitsSetTable256mul2[mask3]; + + // then load the corresponding mask + // could be done with _mm256_loadu2_m128i but many standard libraries omit this intrinsic. + __m256i v256 = _mm256_castsi128_si256( + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8))); + __m256i compactmask = _mm256_insertf128_si256(v256, + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop3 * 8)), 1); + __m256i almostthere = _mm256_shuffle_epi8(pruned, compactmask); + // We just need to write out the result. + // This is the tricky bit that is hard to do + // if we want to return a SIMD register, since there + // is no single-instruction approach to recombine + // the two 128-bit lanes with an offset. + __m128i v128; + v128 = _mm256_castsi256_si128(almostthere); + _mm_storeu_si128( reinterpret_cast<__m128i *>(output), v128); + v128 = _mm256_extractf128_si256(almostthere, 1); + _mm_storeu_si128( reinterpret_cast<__m128i *>(output + 16 - count_ones(mask & 0xFFFF)), v128); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m256i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[32]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31 + ) : simd8(_mm256_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v16,v17,v18,v19,v20,v21,v22,v23, + v24,v25,v26,v27,v28,v29,v30,v31 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm256_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm256_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm256_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm256_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m256i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[32]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31 + ) : simd8(_mm256_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v16,v17,v18,v19,v20,v21,v22,v23, + v24,v25,v26,v27,v28,v29,v30,v31 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm256_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm256_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm256_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm256_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm256_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm256_testz_si256(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm256_testz_si256(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm256_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm256_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm256_movemask_epi8(_mm256_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 2, "Haswell kernel should use two registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+32)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + uint32_t mask1 = uint32_t(mask); + uint32_t mask2 = uint32_t(mask >> 32); + this->chunks[0].compress(mask1, output); + this->chunks[1].compress(mask2, output + 32 - count_ones(mask1)); + return 64 - count_ones(mask); + } + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r_lo = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r_hi = this->chunks[1].to_bitmask(); + return r_lo | (r_hi << 32); + } + + simdjson_inline simd8 reduce_or() const { + return this->chunks[0] | this->chunks[1]; + } + + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask, + this->chunks[1] | mask + ); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask + ).to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1] + ).to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 + +} // namespace simd + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_SIMD_H +/* end file simdjson/haswell/simd.h */ +/* including simdjson/haswell/stringparsing_defs.h: #include "simdjson/haswell/stringparsing_defs.h" */ +/* begin file simdjson/haswell/stringparsing_defs.h */ +#ifndef SIMDJSON_HASWELL_STRINGPARSING_DEFS_H +#define SIMDJSON_HASWELL_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast((v == '\\').to_bitmask()), // bs_bits + static_cast((v == '"').to_bitmask()), // quote_bits + }; +} + +} // unnamed namespace +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_HASWELL_STRINGPARSING_DEFS_H +/* end file simdjson/haswell/stringparsing_defs.h */ +/* end file simdjson/haswell/begin.h */ +/* including simdjson/generic/ondemand/amalgamated.h for haswell: #include "simdjson/generic/ondemand/amalgamated.h" */ +/* begin file simdjson/generic/ondemand/amalgamated.h for haswell */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H) +#error simdjson/generic/ondemand/dependencies.h must be included before simdjson/generic/ondemand/amalgamated.h! +#endif + +// Stuff other things depend on +/* including simdjson/generic/ondemand/base.h for haswell: #include "simdjson/generic/ondemand/base.h" */ +/* begin file simdjson/generic/ondemand/base.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +/** + * A fast, simple, DOM-like interface that parses JSON as you use it. + * + * Designed for maximum speed and a lower memory profile. + */ +namespace ondemand { + +/** Represents the depth of a JSON value (number of nested arrays/objects). */ +using depth_t = int32_t; + +/** @copydoc simdjson::haswell::number_type */ +using number_type = simdjson::haswell::number_type; + +/** @private Position in the JSON buffer indexes */ +using token_position = const uint32_t *; + +class array; +class array_iterator; +class document; +class document_reference; +class document_stream; +class field; +class json_iterator; +enum class json_type; +struct number; +class object; +class object_iterator; +class parser; +class raw_json_string; +class token_iterator; +class value; +class value_iterator; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_BASE_H +/* end file simdjson/generic/ondemand/base.h for haswell */ +/* including simdjson/generic/ondemand/value_iterator.h for haswell: #include "simdjson/generic/ondemand/value_iterator.h" */ +/* begin file simdjson/generic/ondemand/value_iterator.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * Iterates through a single JSON value at a particular depth. + * + * Does not keep track of the type of value: provides methods for objects, arrays and scalars and expects + * the caller to call the right ones. + * + * @private This is not intended for external use. + */ +class value_iterator { +protected: + /** The underlying JSON iterator */ + json_iterator *_json_iter{}; + /** The depth of this value */ + depth_t _depth{}; + /** + * The starting token index for this value + */ + token_position _start_position{}; + +public: + simdjson_inline value_iterator() noexcept = default; + + /** + * Denote that we're starting a document. + */ + simdjson_inline void start_document() noexcept; + + /** + * Skips a non-iterated or partially-iterated JSON value, whether it is a scalar, array or object. + * + * Optimized for scalars. + */ + simdjson_warn_unused simdjson_inline error_code skip_child() noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is at the start of the value + */ + simdjson_inline bool at_start() const noexcept; + + /** + * Tell whether the value is open--if the value has not been used, or the array/object is still open. + */ + simdjson_inline bool is_open() const noexcept; + + /** + * Tell whether the value is at an object's first field (just after the {). + */ + simdjson_inline bool at_first_field() const noexcept; + + /** + * Abandon all iteration. + */ + simdjson_inline void abandon() noexcept; + + /** + * Get the child value as a value_iterator. + */ + simdjson_inline value_iterator child_value() const noexcept; + + /** + * Get the depth of this value. + */ + simdjson_inline int32_t depth() const noexcept; + + /** + * Get the JSON type of this value. + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() const noexcept; + + /** + * @addtogroup object Object iteration + * + * Methods to iterate and find object fields. These methods generally *assume* the value is + * actually an object; the caller is responsible for keeping track of that fact. + * + * @{ + */ + + /** + * Start an object iteration. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + */ + simdjson_warn_unused simdjson_inline simdjson_result start_object() noexcept; + /** + * Start an object iteration from the root. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_object() noexcept; + /** + * Checks whether an object could be started from the root. May be called by start_root_object. + * + * @returns SUCCESS if it is possible to safely start an object from the root (document level). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_object() noexcept; + /** + * Start an object iteration after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_object() noexcept; + /** + * Start an object iteration from the root, after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_object() noexcept; + + /** + * Moves to the next field in an object. + * + * Looks for , and }. If } is found, the object is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return whether there is another field in the object. + * @error TAPE_ERROR If there is a comma missing between fields. + * @error TAPE_ERROR If there is a comma, but not enough tokens remaining to have a key, :, and value. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_field() noexcept; + + /** + * Get the current field's key. + */ + simdjson_warn_unused simdjson_inline simdjson_result field_key() noexcept; + + /** + * Pass the : in the field and move to its value. + */ + simdjson_warn_unused simdjson_inline error_code field_value() noexcept; + + /** + * Find the next field with the given key. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline error_code find_field(const std::string_view key) noexcept; + + /** + * Find the next field with the given key, *without* unescaping. This assumes object order: it + * will not find the field if it was already passed when looking for some *other* field. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_raw(const std::string_view key) noexcept; + + /** + * Find the field with the given key without regard to order, and *without* unescaping. + * + * This is an unordered object lookup: if the field is not found initially, it will cycle around and scan from the beginning. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_unordered_raw(const std::string_view key) noexcept; + + /** @} */ + + /** + * @addtogroup array Array iteration + * Methods to iterate over array elements. These methods generally *assume* the value is actually + * an object; the caller is responsible for keeping track of that fact. + * @{ + */ + + /** + * Check for an opening [ and start an array iteration. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + */ + simdjson_warn_unused simdjson_inline simdjson_result start_array() noexcept; + /** + * Check for an opening [ and start an array iteration while at the root. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_array() noexcept; + /** + * Checks whether an array could be started from the root. May be called by start_root_array. + * + * @returns SUCCESS if it is possible to safely start an array from the root (document level). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_array() noexcept; + /** + * Start an array iteration, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_array() noexcept; + /** + * Start an array iteration from the root, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_array() noexcept; + + /** + * Moves to the next element in an array. + * + * Looks for , and ]. If ] is found, the array is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return Whether there is another element in the array. + * @error TAPE_ERROR If there is a comma missing between elements. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_element() noexcept; + + /** + * Get a child value iterator. + */ + simdjson_warn_unused simdjson_inline value_iterator child() const noexcept; + + /** @} */ + + /** + * @defgroup scalar Scalar values + * @addtogroup scalar + * @{ + */ + + simdjson_warn_unused simdjson_inline simdjson_result get_string(bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_bool() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_null() noexcept; + simdjson_warn_unused simdjson_inline bool is_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_integer() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + simdjson_warn_unused simdjson_inline simdjson_result get_root_string(bool check_trailing, bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_wobbly_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_raw_json_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_bool(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline bool is_root_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_integer(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number_type(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_null(bool check_trailing) noexcept; + + simdjson_inline error_code error() const noexcept; + simdjson_inline uint8_t *&string_buf_loc() noexcept; + simdjson_inline const json_iterator &json_iter() const noexcept; + simdjson_inline json_iterator &json_iter() noexcept; + + simdjson_inline void assert_is_valid() const noexcept; + simdjson_inline bool is_valid() const noexcept; + + /** @} */ +protected: + /** + * Restarts an array iteration. + * @returns Whether the array has any elements (returns false for empty). + */ + simdjson_inline simdjson_result reset_array() noexcept; + /** + * Restarts an object iteration. + * @returns Whether the object has any fields (returns false for empty). + */ + simdjson_inline simdjson_result reset_object() noexcept; + /** + * move_at_start(): moves us so that we are pointing at the beginning of + * the container. It updates the index so that at_start() is true and it + * syncs the depth. The user can then create a new container instance. + * + * Usage: used with value::count_elements(). + **/ + simdjson_inline void move_at_start() noexcept; + + /** + * move_at_container_start(): moves us so that we are pointing at the beginning of + * the container so that assert_at_container_start() passes. + * + * Usage: used with reset_array() and reset_object(). + **/ + simdjson_inline void move_at_container_start() noexcept; + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + simdjson_inline value_iterator(json_iterator *json_iter, depth_t depth, token_position start_index) noexcept; + + simdjson_inline simdjson_result parse_null(const uint8_t *json) const noexcept; + simdjson_inline simdjson_result parse_bool(const uint8_t *json) const noexcept; + simdjson_inline const uint8_t *peek_start() const noexcept; + simdjson_inline uint32_t peek_start_length() const noexcept; + + /** + * The general idea of the advance_... methods and the peek_* methods + * is that you first peek and check that you have desired type. If you do, + * and only if you do, then you advance. + * + * We used to unconditionally advance. But this made reasoning about our + * current state difficult. + * Suppose you always advance. Look at the 'value' matching the key + * "shadowable" in the following example... + * + * ({"globals":{"a":{"shadowable":[}}}}) + * + * If the user thinks it is a Boolean and asks for it, then we check the '[', + * decide it is not a Boolean, but still move into the next character ('}'). Now + * we are left pointing at '}' right after a '['. And we have not yet reported + * an error, only that we do not have a Boolean. + * + * If, instead, you just stand your ground until it is content that you know, then + * you will only even move beyond the '[' if the user tells you that you have an + * array. So you will be at the '}' character inside the array and, hopefully, you + * will then catch the error because an array cannot start with '}', but the code + * processing Boolean values does not know this. + * + * So the contract is: first call 'peek_...' and then call 'advance_...' only + * if you have determined that it is a type you can handle. + * + * Unfortunately, it makes the code more verbose, longer and maybe more error prone. + */ + + simdjson_inline void advance_scalar(const char *type) noexcept; + simdjson_inline void advance_root_scalar(const char *type) noexcept; + simdjson_inline void advance_non_root_scalar(const char *type) noexcept; + + simdjson_inline const uint8_t *peek_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_root_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_non_root_scalar(const char *type) noexcept; + + + simdjson_inline error_code start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept; + simdjson_inline error_code end_container() noexcept; + + /** + * Advance to a place expecting a value (increasing depth). + * + * @return The current token (the one left behind). + * @error TAPE_ERROR If the document ended early. + */ + simdjson_inline simdjson_result advance_to_value() noexcept; + + simdjson_inline error_code incorrect_type_error(const char *message) const noexcept; + simdjson_inline error_code error_unless_more_tokens(uint32_t tokens=1) const noexcept; + + simdjson_inline bool is_at_start() const noexcept; + /** + * is_at_iterator_start() returns true on an array or object after it has just been + * created, whether the instance is empty or not. + * + * Usage: used by array::begin() in debug mode (SIMDJSON_DEVELOPMENT_CHECKS) + */ + simdjson_inline bool is_at_iterator_start() const noexcept; + + /** + * Assuming that we are within an object, this returns true if we + * are pointing at a key. + * + * Usage: the skip_child() method should never be used while we are pointing + * at a key inside an object. + */ + simdjson_inline bool is_at_key() const noexcept; + + inline void assert_at_start() const noexcept; + inline void assert_at_container_start() const noexcept; + inline void assert_at_root() const noexcept; + inline void assert_at_child() const noexcept; + inline void assert_at_next() const noexcept; + inline void assert_at_non_root_start() const noexcept; + + /** Get the starting position of this value */ + simdjson_inline token_position start_position() const noexcept; + + /** @copydoc error_code json_iterator::position() const noexcept; */ + simdjson_inline token_position position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position last_position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position end_position() const noexcept; + /** @copydoc error_code json_iterator::report_error(error_code error, const char *message) noexcept; */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + friend class document; + friend class object; + friend class array; + friend class value; +}; // value_iterator + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::value_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H +/* end file simdjson/generic/ondemand/value_iterator.h for haswell */ +/* including simdjson/generic/ondemand/value.h for haswell: #include "simdjson/generic/ondemand/value.h" */ +/* begin file simdjson/generic/ondemand/value.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * An ephemeral JSON value returned during iteration. It is only valid for as long as you do + * not access more data in the JSON document. + */ +class value { +public: + /** + * Create a new invalid value. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline value() noexcept = default; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) noexcept; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() noexcept; + + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() noexcept; + + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + + /** + * Cast this JSON value (inside string) to a unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * Important: a value should be consumed once. Calling get_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + + + /** + * Cast this JSON value to a "wobbly" string. + * + * The string is may not be a valid UTF-8 string. + * See https://simonsapin.github.io/wtf-8/ + * + * Important: a value should be consumed once. Calling get_wobbly_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); +#endif + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + * + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * Performance hint: You should only call count_elements() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method on the object instance. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @return The type of JSON value (json_type::array, json_type::object, json_type::string, + * json_type::number, json_type::boolean, or json_type::null). + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the value is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the value is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the value is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * Performance note: if you call this function systematically + * before parsing a number, you may have fallen for a performance + * anti-pattern. + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + * + * Performance note: this is designed with performance in mind. When + * calling 'get_number()', you scan the number string only once, determining + * efficiently the type and storing it in an efficient manner. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. However, if this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view is guaranteed to be + * a non-space token. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline std::string_view raw_json_token() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + simdjson_inline simdjson_result current_location() noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. + * + * Calling at_pointer() on non-document instances (e.g., arrays and objects) is not + * standardized (by RFC 6901). We provide some experimental support for JSON pointers + * on non-document instances. Yet it is not the case when calling at_pointer on an array + * or an object instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + +protected: + /** + * Create a value. + */ + simdjson_inline value(const value_iterator &iter) noexcept; + + /** + * Skip this value, allowing iteration to continue. + */ + simdjson_inline void skip() noexcept; + + /** + * Start a value at the current position. + * + * (It should already be started; this is just a self-documentation method.) + */ + static simdjson_inline value start(const value_iterator &iter) noexcept; + + /** + * Resume a value. + */ + static simdjson_inline value resume(const value_iterator &iter) noexcept; + + /** + * Get the object, starting or resuming it as necessary + */ + simdjson_inline simdjson_result start_or_resume_object() noexcept; + + // simdjson_inline void log_value(const char *type) const noexcept; + // simdjson_inline void log_error(const char *message) const noexcept; + + value_iterator iter{}; + + friend class document; + friend class array_iterator; + friend class field; + friend class object; + friend struct simdjson_result; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::value &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result get_array() noexcept; + simdjson_inline simdjson_result get_object() noexcept; + + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() noexcept; + + template simdjson_inline error_code get(T &out) noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator haswell::ondemand::array() noexcept(false); + simdjson_inline operator haswell::ondemand::object() noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator haswell::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + */ + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + + /** @copydoc simdjson_inline std::string_view value::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** @copydoc simdjson_inline simdjson_result current_location() noexcept */ + simdjson_inline simdjson_result current_location() noexcept; + /** @copydoc simdjson_inline int32_t current_depth() const noexcept */ + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_H +/* end file simdjson/generic/ondemand/value.h for haswell */ +/* including simdjson/generic/ondemand/logger.h for haswell: #include "simdjson/generic/ondemand/logger.h" */ +/* begin file simdjson/generic/ondemand/logger.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +// Logging should be free unless SIMDJSON_VERBOSE_LOGGING is set. Importantly, it is critical +// that the call to the log functions be side-effect free. Thus, for example, you should not +// create temporary std::string instances. +namespace logger { + +enum class log_level : int32_t { + info = 0, + error = 1 +}; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + +// We do not want these functions to be 'really inlined' since real inlining is +// for performance purposes and if you are using the loggers, you do not care about +// performance (or should not). +static inline void log_headers() noexcept; +// If args are provided, title will be treated as format string +template +static inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +template +static inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; +static inline void log_event(const json_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_value(const json_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_start_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; + +static inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail="") noexcept; +static inline void log_error(const json_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +static inline void log_event(const value_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const value_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_error(const value_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +} // namespace logger +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_H +/* end file simdjson/generic/ondemand/logger.h for haswell */ +/* including simdjson/generic/ondemand/token_iterator.h for haswell: #include "simdjson/generic/ondemand/token_iterator.h" */ +/* begin file simdjson/generic/ondemand/token_iterator.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * Iterates through JSON tokens (`{` `}` `[` `]` `,` `:` `""` `123` `true` `false` `null`) + * detected by stage 1. + * + * @private This is not intended for external use. + */ +class token_iterator { +public: + /** + * Create a new invalid token_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline token_iterator() noexcept = default; + simdjson_inline token_iterator(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator &operator=(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator(const token_iterator &other) noexcept = default; + simdjson_inline token_iterator &operator=(const token_iterator &other) noexcept = default; + + /** + * Advance to the next token (returning the current one). + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + /** + * Reports the current offset in bytes from the start of the underlying buffer. + */ + simdjson_inline uint32_t current_offset() const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + + /** + * Return the current index. + */ + simdjson_inline token_position position() const noexcept; + /** + * Reset to a previously saved index. + */ + simdjson_inline void set_position(token_position target_position) noexcept; + + // NOTE: we don't support a full C++ iterator interface, because we expect people to make + // different calls to advance the iterator based on *their own* state. + + simdjson_inline bool operator==(const token_iterator &other) const noexcept; + simdjson_inline bool operator!=(const token_iterator &other) const noexcept; + simdjson_inline bool operator>(const token_iterator &other) const noexcept; + simdjson_inline bool operator>=(const token_iterator &other) const noexcept; + simdjson_inline bool operator<(const token_iterator &other) const noexcept; + simdjson_inline bool operator<=(const token_iterator &other) const noexcept; + +protected: + simdjson_inline token_iterator(const uint8_t *buf, token_position position) noexcept; + + /** + * Get the index of the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_index(int32_t delta=0) const noexcept; + /** + * Get the index of the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline uint32_t peek_index(token_position position) const noexcept; + + const uint8_t *buf{}; + token_position _position{}; + + friend class json_iterator; + friend class value_iterator; + friend class object; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::token_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H +/* end file simdjson/generic/ondemand/token_iterator.h for haswell */ +/* including simdjson/generic/ondemand/json_iterator.h for haswell: #include "simdjson/generic/ondemand/json_iterator.h" */ +/* begin file simdjson/generic/ondemand/json_iterator.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * Iterates through JSON tokens, keeping track of depth and string buffer. + * + * @private This is not intended for external use. + */ +class json_iterator { +protected: + token_iterator token{}; + ondemand::parser *parser{}; + /** + * Next free location in the string buffer. + * + * Used by raw_json_string::unescape() to have a place to unescape strings to. + */ + uint8_t *_string_buf_loc{}; + /** + * JSON error, if there is one. + * + * INCORRECT_TYPE and NO_SUCH_FIELD are *not* stored here, ever. + * + * PERF NOTE: we *hope* this will be elided into control flow, as it is only used (a) in the first + * iteration of the loop, or (b) for the final iteration after a missing comma is found in ++. If + * this is not elided, we should make sure it's at least not using up a register. Failing that, + * we should store it in document so there's only one of them. + */ + error_code error{SUCCESS}; + /** + * Depth of the current token in the JSON. + * + * - 0 = finished with document + * - 1 = document root value (could be [ or {, not yet known) + * - 2 = , or } inside root array/object + * - 3 = key or value inside root array/object. + */ + depth_t _depth{}; + /** + * Beginning of the document indexes. + * Normally we have root == parser->implementation->structural_indexes.get() + * but this may differ, especially in streaming mode (where we have several + * documents); + */ + token_position _root{}; + /** + * Normally, a json_iterator operates over a single document, but in + * some cases, we may have a stream of documents. This attribute is meant + * as meta-data: the json_iterator works the same irrespective of the + * value of this attribute. + */ + bool _streaming{false}; + +public: + simdjson_inline json_iterator() noexcept = default; + simdjson_inline json_iterator(json_iterator &&other) noexcept; + simdjson_inline json_iterator &operator=(json_iterator &&other) noexcept; + simdjson_inline explicit json_iterator(const json_iterator &other) noexcept = default; + simdjson_inline json_iterator &operator=(const json_iterator &other) noexcept = default; + /** + * Skips a JSON value, whether it is a scalar, array or object. + */ + simdjson_warn_unused simdjson_inline error_code skip_child(depth_t parent_depth) noexcept; + + /** + * Tell whether the iterator is still at the start + */ + simdjson_inline bool at_root() const noexcept; + + /** + * Tell whether we should be expected to run in streaming + * mode (iterating over many documents). It is pure metadata + * that does not affect how the iterator works. It is used by + * start_root_array() and start_root_object(). + */ + simdjson_inline bool streaming() const noexcept; + + /** + * Get the root value iterator + */ + simdjson_inline token_position root_position() const noexcept; + /** + * Assert that we are at the document depth (== 1) + */ + simdjson_inline void assert_at_document_depth() const noexcept; + /** + * Assert that we are at the root of the document + */ + simdjson_inline void assert_at_root() const noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is live (has not been moved). + */ + simdjson_inline bool is_alive() const noexcept; + + /** + * Abandon this iterator, setting depth to 0 (as if the document is finished). + */ + simdjson_inline void abandon() noexcept; + + /** + * Advance the current token without modifying depth. + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + + /** + * Returns true if there is a single token in the index (i.e., it is + * a JSON with a scalar value such as a single number). + * + * @return whether there is a single token + */ + simdjson_inline bool is_single_token() const noexcept; + + /** + * Assert that there are at least the given number of tokens left. + * + * Has no effect in release builds. + */ + simdjson_inline void assert_more_tokens(uint32_t required_tokens=1) const noexcept; + /** + * Assert that the given position addresses an actual token (is within bounds). + * + * Has no effect in release builds. + */ + simdjson_inline void assert_valid_position(token_position position) const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + /** + * Get a pointer to the current location in the input buffer. + * + * This is not null-terminated; it is a view into the JSON. + * + * You may be pointing outside of the input buffer: it is not generally + * safe to dereference this pointer. + */ + simdjson_inline const uint8_t *unsafe_pointer() const noexcept; + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token to retrieve. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token to retrieve. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + /** + * Get the JSON text for the last token in the document. + * + * This is not null-terminated; it is a view into the JSON. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek_last() const noexcept; + + /** + * Ascend one level. + * + * Validates that the depth - 1 == parent_depth. + * + * @param parent_depth the expected parent depth. + */ + simdjson_inline void ascend_to(depth_t parent_depth) noexcept; + + /** + * Descend one level. + * + * Validates that the new depth == child_depth. + * + * @param child_depth the expected child depth. + */ + simdjson_inline void descend_to(depth_t child_depth) noexcept; + simdjson_inline void descend_to(depth_t child_depth, int32_t delta) noexcept; + + /** + * Get current depth. + */ + simdjson_inline depth_t depth() const noexcept; + + /** + * Get current (writeable) location in the string buffer. + */ + simdjson_inline uint8_t *&string_buf_loc() noexcept; + + /** + * Report an unrecoverable error, preventing further iteration. + * + * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + /** + * Log error, but don't stop iteration. + * @param error The error to report. Must be INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code optional_error(error_code error, const char *message) noexcept; + + /** + * Take an input in json containing max_len characters and attempt to copy it over to tmpbuf, a buffer with + * N bytes of capacity. It will return false if N is too small (smaller than max_len) of if it is zero. + * The buffer (tmpbuf) is padded with space characters. + */ + simdjson_warn_unused simdjson_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept; + + simdjson_inline token_position position() const noexcept; + /** + * Write the raw_json_string to the string buffer and return a string_view. + * Each raw_json_string should be unescaped once, or else the string buffer might + * overflow. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, bool allow_replacement) noexcept; + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in) noexcept; + simdjson_inline void reenter_child(token_position position, depth_t child_depth) noexcept; + + simdjson_inline error_code consume_character(char c) noexcept; +#if SIMDJSON_DEVELOPMENT_CHECKS + simdjson_inline token_position start_position(depth_t depth) const noexcept; + simdjson_inline void set_start_position(depth_t depth, token_position position) noexcept; +#endif + + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Updates this json iterator so that it is back at the beginning of the document, + * as if it had just been created. + */ + inline void rewind() noexcept; + /** + * This checks whether the {,},[,] are balanced so that the document + * ends with proper zero depth. This requires scanning the whole document + * and it may be expensive. It is expected that it will be rarely called. + * It does not attempt to match { with } and [ with ]. + */ + inline bool balanced() const noexcept; +protected: + simdjson_inline json_iterator(const uint8_t *buf, ondemand::parser *parser) noexcept; + /// The last token before the end + simdjson_inline token_position last_position() const noexcept; + /// The token *at* the end. This points at gibberish and should only be used for comparison. + simdjson_inline token_position end_position() const noexcept; + /// The end of the buffer. + simdjson_inline token_position end() const noexcept; + + friend class document; + friend class document_stream; + friend class object; + friend class array; + friend class value; + friend class raw_json_string; + friend class parser; + friend class value_iterator; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; // json_iterator + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::json_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H +/* end file simdjson/generic/ondemand/json_iterator.h for haswell */ +/* including simdjson/generic/ondemand/json_type.h for haswell: #include "simdjson/generic/ondemand/json_type.h" */ +/* begin file simdjson/generic/ondemand/json_type.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * The type of a JSON value. + */ +enum class json_type { + // Start at 1 to catch uninitialized / default values more easily + array=1, ///< A JSON array ( [ 1, 2, 3 ... ] ) + object, ///< A JSON object ( { "a": 1, "b" 2, ... } ) + number, ///< A JSON number ( 1 or -2.3 or 4.5e6 ...) + string, ///< A JSON string ( "a" or "hello world\n" ...) + boolean, ///< A JSON boolean (true or false) + null ///< A JSON null (null) +}; + +/** + * A type representing a JSON number. + * The design of the struct is deliberately straight-forward. All + * functions return standard values with no error check. + */ +struct number { + + /** + * return the automatically determined type of + * the number: number_type::floating_point_number, + * number_type::signed_integer or number_type::unsigned_integer. + * + * enum class number_type { + * floating_point_number=1, /// a binary64 number + * signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + * unsigned_integer /// a positive integer larger or equal to 1<<63 + * }; + */ + simdjson_inline ondemand::number_type get_number_type() const noexcept; + /** + * return true if the automatically determined type of + * the number is number_type::unsigned_integer. + */ + simdjson_inline bool is_uint64() const noexcept; + /** + * return the value as a uint64_t, only valid if is_uint64() is true. + */ + simdjson_inline uint64_t get_uint64() const noexcept; + simdjson_inline operator uint64_t() const noexcept; + + /** + * return true if the automatically determined type of + * the number is number_type::signed_integer. + */ + simdjson_inline bool is_int64() const noexcept; + /** + * return the value as a int64_t, only valid if is_int64() is true. + */ + simdjson_inline int64_t get_int64() const noexcept; + simdjson_inline operator int64_t() const noexcept; + + + /** + * return true if the automatically determined type of + * the number is number_type::floating_point_number. + */ + simdjson_inline bool is_double() const noexcept; + /** + * return the value as a double, only valid if is_double() is true. + */ + simdjson_inline double get_double() const noexcept; + simdjson_inline operator double() const noexcept; + + /** + * Convert the number to a double. Though it always succeed, the conversion + * may be lossy if the number cannot be represented exactly. + */ + simdjson_inline double as_double() const noexcept; + + +protected: + /** + * The next block of declaration is designed so that we can call the number parsing + * functions on a number type. They are protected and should never be used outside + * of the core simdjson library. + */ + friend class value_iterator; + template + friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer); + template + friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer); + template + friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer); + /** Store a signed 64-bit value to the number. */ + simdjson_inline void append_s64(int64_t value) noexcept; + /** Store an unsigned 64-bit value to the number. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + /** Store a double value to the number. */ + simdjson_inline void append_double(double value) noexcept; + /** Specifies that the value is a double, but leave it undefined. */ + simdjson_inline void skip_double() noexcept; + /** + * End of friend declarations. + */ + + /** + * Our attributes are a union type (size = 64 bits) + * followed by a type indicator. + */ + union { + double floating_point_number; + int64_t signed_integer; + uint64_t unsigned_integer; + } payload{0}; + number_type type{number_type::signed_integer}; +}; + +/** + * Write the JSON type to the output stream + * + * @param out The output stream. + * @param type The json_type. + */ +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept; + +#if SIMDJSON_EXCEPTIONS +/** + * Send JSON type to an output stream. + * + * @param out The output stream. + * @param type The json_type. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false); +#endif + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::json_type &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H +/* end file simdjson/generic/ondemand/json_type.h for haswell */ +/* including simdjson/generic/ondemand/raw_json_string.h for haswell: #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * A string escaped per JSON rules, terminated with quote ("). They are used to represent + * unescaped keys inside JSON documents. + * + * (In other words, a pointer to the beginning of a string, just after the start quote, inside a + * JSON file.) + * + * This class is deliberately simplistic and has little functionality. You can + * compare a raw_json_string instance with an unescaped C string, but + * that is nearly all you can do. + * + * The raw_json_string is unescaped. If you wish to write an unescaped version of it to your own + * buffer, you may do so using the parser.unescape(string, buff) method, using an ondemand::parser + * instance. Doing so requires you to have a sufficiently large buffer. + * + * The raw_json_string instances originate typically from field instance which in turn represent + * key-value pairs from object instances. From a field instance, you get the raw_json_string + * instance by calling key(). You can, if you want a more usable string_view instance, call + * the unescaped_key() method on the field instance. You may also create a raw_json_string from + * any other string value, with the value.get_raw_json_string() method. Again, you can get + * a more usable string_view instance by calling get_string(). + * + */ +class raw_json_string { +public: + /** + * Create a new invalid raw_json_string. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline raw_json_string() noexcept = default; + + /** + * Create a new invalid raw_json_string pointed at the given location in the JSON. + * + * The given location must be just *after* the beginning quote (") in the JSON file. + * + * It *must* be terminated by a ", and be a valid JSON string. + */ + simdjson_inline raw_json_string(const uint8_t * _buf) noexcept; + /** + * Get the raw pointer to the beginning of the string in the JSON (just after the "). + * + * It is possible for this function to return a null pointer if the instance + * has outlived its existence. + */ + simdjson_inline const char * raw() const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done) on target.size() characters, + * and if the raw_json_string instance has a quote character at byte index target.size(). + * We never read more than length + 1 bytes in the raw_json_string instance. + * If length is smaller than target.size(), this will return false. + * + * The std::string_view instance may contain any characters. However, the caller + * is responsible for setting length so that length bytes may be read in the + * raw_json_string. + * + * Performance: the comparison may be done using memcmp which may be efficient + * for long strings. + */ + simdjson_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The std::string_view instance should not contain unescaped quote characters: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * Performance: the comparison is done byte-by-byte which might be inefficient for + * long strings. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The provided C string should not contain an unescaped quote character: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(const char* target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(const char* target) const noexcept; + + /** + * Returns true if target is free from unescaped quote. If target is known at + * compile-time, we might expect the computation to happen at compile time with + * many compilers (not all!). + */ + static simdjson_inline bool is_free_from_unescaped_quote(std::string_view target) noexcept; + static simdjson_inline bool is_free_from_unescaped_quote(const char* target) noexcept; + +private: + + + /** + * This will set the inner pointer to zero, effectively making + * this instance unusable. + */ + simdjson_inline void consume() noexcept { buf = nullptr; } + + /** + * Checks whether the inner pointer is non-null and thus usable. + */ + simdjson_inline simdjson_warn_unused bool alive() const noexcept { return buf != nullptr; } + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result will be a valid UTF-8. + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + * @param allow_replacement Whether we allow replacement of invalid surrogate pairs. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape(json_iterator &iter, bool allow_replacement) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result may not be a valid UTF-8. https://simonsapin.github.io/wtf-8/ + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(json_iterator &iter) const noexcept; + const uint8_t * buf{}; + friend class object; + friend class field; + friend class parser; + friend struct simdjson_result; +}; + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &, const raw_json_string &) noexcept; + +/** + * Comparisons between raw_json_string and std::string_view instances are potentially unsafe: the user is responsible + * for providing a string with no unescaped quote. Note that unescaped quotes cannot be present in valid JSON strings. + */ +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept; +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept; + + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::raw_json_string &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private + + simdjson_inline simdjson_result raw() const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape(haswell::ondemand::json_iterator &iter, bool allow_replacement) const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(haswell::ondemand::json_iterator &iter) const noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H +/* end file simdjson/generic/ondemand/raw_json_string.h for haswell */ +/* including simdjson/generic/ondemand/parser.h for haswell: #include "simdjson/generic/ondemand/parser.h" */ +/* begin file simdjson/generic/ondemand/parser.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * The default batch size for document_stream instances for this On Demand kernel. + * Note that different On Demand kernel may use a different DEFAULT_BATCH_SIZE value + * in the future. + */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; + +/** + * A JSON fragment iterator. + * + * This holds the actual iterator as well as the buffer for writing strings. + */ +class parser { +public: + /** + * Create a JSON parser. + * + * The new parser will have zero capacity. + */ + inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; + + inline parser(parser &&other) noexcept = default; + simdjson_inline parser(const parser &other) = delete; + simdjson_inline parser &operator=(const parser &other) = delete; + simdjson_inline parser &operator=(parser &&other) noexcept = default; + + /** Deallocate the JSON parser. */ + inline ~parser() noexcept = default; + + /** + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * document doc = parser.iterate(json); + * + * It is expected that the content is a valid UTF-8 file, containing a valid JSON document. + * Otherwise the iterate method may return an error. In particular, the whole input should be + * valid: we do not attempt to tolerate incorrect content either before or after a JSON + * document. + * + * ### IMPORTANT: Validate what you use + * + * Calling iterate on an invalid JSON document may not immediately trigger an error. The call to + * iterate does not parse and validate the whole document. + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * @param len The length of the JSON. + * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING). + * + * @return The document, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate(padded_string_view json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const char *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(std::string_view json, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const std::string &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(padded_string &&json) & noexcept = delete; + + /** + * @private + * + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * json_iterator doc = parser.iterate(json); + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * The ondemand::document instance holds the iterator. The document must remain in scope + * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * + * @return The iterator, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate_raw(padded_string_view json) & noexcept; + + + /** + * Parse a buffer containing many JSON documents. + * + * auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded; + * ondemand::parser parser; + * ondemand::document_stream docs = parser.iterate_many(json); + * for (auto & doc : docs) { + * std::cout << doc["foo"] << std::endl; + * } + * // Prints 1 2 3 + * + * No copy of the input buffer is made. + * + * The function is lazy: it may be that no more than one JSON document at a time is parsed. + * + * The caller is responsabile to ensure that the input string data remains unchanged and is + * not deleted during the loop. + * + * ### Format + * + * The buffer must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) + * + * documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. Documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with ASCII whitespace. + * + * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8). + * + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excessively small values may impact negatively the + * performance. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * ### Threads + * + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The concatenated JSON to parse. + * @param len The length of the concatenated JSON. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 10MB, which has been a reasonable sweet spot in our tests. + * @param allow_comma_separated (defaults on false) This allows a mode where the documents are + * separated by commas instead of whitespace. It comes with a performance + * penalty because the entire document is indexed at once (and the document must be + * less than 4 GB), and there is no multithreading. In this mode, the batch_size parameter + * is effectively ignored, as it is set to at least the document size. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const std::string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const std::string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const padded_string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const padded_string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_result iterate_many(const char *buf, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept = delete; + + /** The capacity of this parser (the largest document it can process). */ + simdjson_inline size_t capacity() const noexcept; + /** The maximum capacity of this parser (the largest document it is allowed to process). */ + simdjson_inline size_t max_capacity() const noexcept; + simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; + /** + * The maximum depth of this parser (the most deeply nested objects and arrays it can process). + * This parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * The max_depth parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused error_code allocate(size_t capacity, size_t max_depth=DEFAULT_MAX_DEPTH) noexcept; + + #ifdef SIMDJSON_THREADS_ENABLED + /** + * The parser instance can use threads when they are available to speed up some + * operations. It is enabled by default. Changing this attribute will change the + * behavior of the parser for future operations. + */ + bool threaded{true}; + #endif + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result must be valid UTF-8. + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @param allow_replacement Whether we allow a replacement if the input string contains unmatched surrogate pairs. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement = false) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result may not be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept; + +private: + /** @private [for benchmarking access] The implementation to use */ + std::unique_ptr implementation{}; + size_t _capacity{0}; + size_t _max_capacity; + size_t _max_depth{DEFAULT_MAX_DEPTH}; + std::unique_ptr string_buf{}; +#if SIMDJSON_DEVELOPMENT_CHECKS + std::unique_ptr start_positions{}; +#endif + + friend class json_iterator; + friend class document_stream; +}; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::parser &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_H +/* end file simdjson/generic/ondemand/parser.h for haswell */ + +// All other declarations +/* including simdjson/generic/ondemand/array.h for haswell: #include "simdjson/generic/ondemand/array.h" */ +/* begin file simdjson/generic/ondemand/array.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * A forward-only JSON array. + */ +class array { +public: + /** + * Create a new invalid array. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline array() noexcept = default; + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an array is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the beginning of the array and checks whether the + * array is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result is_empty() & noexcept; + /** + * Reset the iterator so that we are pointing back at the + * beginning of the array. You should still consume values only once even if you + * can iterate through the array more than once. If you unescape a string + * within the array more than once, you have unsafe code. Note that rewinding + * an array means that you may need to reparse it anew: it is not a free + * operation. + * + * @returns true if the array contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/0/foo/a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an array + * instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the array and returns a string_view instance corresponding to the + * array as represented in JSON. It points inside the original document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + + /** + * Get the value at the given index. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; +protected: + /** + * Go to the end of the array, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + + /** + * Begin array iteration. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + */ + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + /** + * Begin array iteration from the root. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + * @error TAPE_ERROR if there is no closing ] at the end of the document. + */ + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + /** + * Begin array iteration. + * + * This version of the method should be called after the initial [ has been verified, and is + * intended for use by switch statements that check the type of a value. + * + * @param iter The iterator. Must be after the initial [. Will be *moved* into the resulting array. + */ + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + + /** + * Create an array at the given Internal array creation. Call array::start() or array::started() instead of this. + * + * @param iter The iterator. Must either be at the start of the first element with iter.is_alive() + * == true, or past the [] with is_alive() == false if the array is empty. Will be *moved* + * into the resulting array. + */ + simdjson_inline array(const value_iterator &iter) noexcept; + + /** + * Iterator marking current position. + * + * iter.is_alive() == false indicates iteration is complete. + */ + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; + friend struct simdjson_result; + friend class array_iterator; +}; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::array &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + inline simdjson_result count_elements() & noexcept; + inline simdjson_result is_empty() & noexcept; + inline simdjson_result reset() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_H +/* end file simdjson/generic/ondemand/array.h for haswell */ +/* including simdjson/generic/ondemand/array_iterator.h for haswell: #include "simdjson/generic/ondemand/array_iterator.h" */ +/* begin file simdjson/generic/ondemand/array_iterator.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * A forward-only JSON array. + * + * This is an input_iterator, meaning: + * - It is forward-only + * - * must be called exactly once per element. + * - ++ must be called exactly once in between each * (*, ++, *, ++, * ...) + */ +class array_iterator { +public: + /** Create a new, invalid array iterator. */ + simdjson_inline array_iterator() noexcept = default; + + // + // Iterator interface + // + + /** + * Get the current element. + * + * Part of the std::iterator interface. + */ + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + /** + * Check if we are at the end of the JSON. + * + * Part of the std::iterator interface. + * + * @return true if there are no more elements in the JSON array. + */ + simdjson_inline bool operator==(const array_iterator &) const noexcept; + /** + * Check if there are more elements in the JSON array. + * + * Part of the std::iterator interface. + * + * @return true if there are more elements in the JSON array. + */ + simdjson_inline bool operator!=(const array_iterator &) const noexcept; + /** + * Move to the next element. + * + * Part of the std::iterator interface. + */ + simdjson_inline array_iterator &operator++() noexcept; + +private: + value_iterator iter{}; + + simdjson_inline array_iterator(const value_iterator &iter) noexcept; + + friend class array; + friend class value; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::array_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H +/* end file simdjson/generic/ondemand/array_iterator.h for haswell */ +/* including simdjson/generic/ondemand/document.h for haswell: #include "simdjson/generic/ondemand/document.h" */ +/* begin file simdjson/generic/ondemand/document.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * A JSON document. It holds a json_iterator instance. + * + * Used by tokens to get text, and string buffer location. + * + * You must keep the document around during iteration. + */ +class document { +public: + /** + * Create a new invalid document. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline document() noexcept = default; + simdjson_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy + simdjson_inline document(document &&other) noexcept = default; + simdjson_inline document &operator=(const document &other) noexcept = delete; + simdjson_inline document &operator=(document &&other) noexcept = default; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() & noexcept; + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() & noexcept; + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + /** + * Cast this JSON value (inside string) to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Important: Calling get_string() twice on the same document is an error. + * + * @param Whether to allow a replacement character for unmatched surrogate pairs. + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + /** + * Cast this JSON value to a string. + * + * The string is not guaranteed to be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * + * Important: Calling get_wobbly_string() twice on the same document is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + /** + * Cast this JSON value to a value when the document is an object or an array. + * + * @returns A value if a JSON array or object cannot be found. + * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result get_value() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() & noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + /** @overload template simdjson_result get() & noexcept */ + template simdjson_inline simdjson_result get() && noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value + * + * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances. + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) & noexcept; + /** @overload template error_code get(T &out) & noexcept */ + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() & noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() & noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); + /** + * Cast this JSON value to a value. + * + * @returns A value value. + * @exception if a JSON value cannot be found + */ + simdjson_inline operator value() noexcept(false); +#endif + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) & noexcept; + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to + * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the document is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the document is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the document is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. If this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view may be the padded buffer. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** + * Reset the iterator inside the document instance so we are pointing back at the + * beginning of the document, as if it had just been created. It invalidates all + * values, objects and arrays that you have created so far (including unescaped strings). + */ + inline void rewind() noexcept; + /** + * Returns debugging information. + */ + inline std::string to_debug_string() noexcept; + /** + * Some unrecoverable error conditions may render the document instance unusable. + * The is_alive() method returns true when the document is still suitable. + */ + inline bool is_alive() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Returns true if this document has been fully parsed. + * If you have consumed the whole document and at_end() returns + * false, then there may be trailing content. + */ + inline bool at_end() const noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() automatically calls rewind between each call. Thus + * all values, objects and arrays that you have created so far (including unescaped strings) + * are invalidated. After calling at_pointer, you need to consume the result: string values + * should be stored in your own variables, arrays should be decoded and stored in your own array-like + * structures and so forth. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + * - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the document and returns a string_view instance corresponding to the + * document as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; +protected: + /** + * Consumes the document. + */ + simdjson_inline error_code consume() noexcept; + + simdjson_inline document(ondemand::json_iterator &&iter) noexcept; + simdjson_inline const uint8_t *text(uint32_t idx) const noexcept; + + simdjson_inline value_iterator resume_value_iterator() noexcept; + simdjson_inline value_iterator get_root_value_iterator() noexcept; + simdjson_inline simdjson_result start_or_resume_object() noexcept; + static simdjson_inline document start(ondemand::json_iterator &&iter) noexcept; + + // + // Fields + // + json_iterator iter{}; ///< Current position in the document + static constexpr depth_t DOCUMENT_DEPTH = 0; ///< document depth is always 0 + + friend class array_iterator; + friend class value; + friend class ondemand::parser; + friend class object; + friend class array; + friend class field; + friend class token; + friend class document_stream; + friend class document_reference; +}; + + +/** + * A document_reference is a thin wrapper around a document reference instance. + */ +class document_reference { +public: + simdjson_inline document_reference() noexcept; + simdjson_inline document_reference(document &d) noexcept; + simdjson_inline document_reference(const document_reference &other) noexcept = default; + simdjson_inline document_reference& operator=(const document_reference &other) noexcept = default; + simdjson_inline void rewind() noexcept; + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + + simdjson_inline simdjson_result is_null() noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + simdjson_inline operator document&() const noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator array() & noexcept(false); + simdjson_inline operator object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + simdjson_inline simdjson_result raw_json_token() noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +private: + document *doc{nullptr}; +}; +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::document &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() & noexcept; + template simdjson_inline simdjson_result get() && noexcept; + + template simdjson_inline error_code get(T &out) & noexcept; + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator haswell::ondemand::array() & noexcept(false); + simdjson_inline operator haswell::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator haswell::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator haswell::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool at_end() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + + + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::document_reference value, error_code error) noexcept; + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator haswell::ondemand::array() & noexcept(false); + simdjson_inline operator haswell::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator haswell::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator haswell::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document_reference::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H +/* end file simdjson/generic/ondemand/document.h for haswell */ +/* including simdjson/generic/ondemand/document_stream.h for haswell: #include "simdjson/generic/ondemand/document_stream.h" */ +/* begin file simdjson/generic/ondemand/document_stream.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#ifdef SIMDJSON_THREADS_ENABLED +#include +#include +#include +#endif + +namespace simdjson { +namespace haswell { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED +/** @private Custom worker class **/ +struct stage1_worker { + stage1_worker() noexcept = default; + stage1_worker(const stage1_worker&) = delete; + stage1_worker(stage1_worker&&) = delete; + stage1_worker operator=(const stage1_worker&) = delete; + ~stage1_worker(); + /** + * We only start the thread when it is needed, not at object construction, this may throw. + * You should only call this once. + **/ + void start_thread(); + /** + * Start a stage 1 job. You should first call 'run', then 'finish'. + * You must call start_thread once before. + */ + void run(document_stream * ds, parser * stage1, size_t next_batch_start); + /** Wait for the run to finish (blocking). You should first call 'run', then 'finish'. **/ + void finish(); + +private: + + /** + * Normally, we would never stop the thread. But we do in the destructor. + * This function is only safe assuming that you are not waiting for results. You + * should have called run, then finish, and be done. + **/ + void stop_thread(); + + std::thread thread{}; + /** These three variables define the work done by the thread. **/ + ondemand::parser * stage1_thread_parser{}; + size_t _next_batch_start{}; + document_stream * owner{}; + /** + * We have two state variables. This could be streamlined to one variable in the future but + * we use two for clarity. + */ + bool has_work{false}; + bool can_work{true}; + + /** + * We lock using a mutex. + */ + std::mutex locking_mutex{}; + std::condition_variable cond_var{}; + + friend class document_stream; +}; +#endif // SIMDJSON_THREADS_ENABLED + +/** + * A forward-only stream of documents. + * + * Produced by parser::iterate_many. + * + */ +class document_stream { +public: + /** + * Construct an uninitialized document_stream. + * + * ```c++ + * document_stream docs; + * auto error = parser.iterate_many(json).get(docs); + * ``` + */ + simdjson_inline document_stream() noexcept; + /** Move one document_stream to another. */ + simdjson_inline document_stream(document_stream &&other) noexcept = default; + /** Move one document_stream to another. */ + simdjson_inline document_stream &operator=(document_stream &&other) noexcept = default; + + simdjson_inline ~document_stream() noexcept; + + /** + * Returns the input size in bytes. + */ + inline size_t size_in_bytes() const noexcept; + + /** + * After iterating through the stream, this method + * returns the number of bytes that were not parsed at the end + * of the stream. If truncated_bytes() differs from zero, + * then the input was truncated maybe because incomplete JSON + * documents were found at the end of the stream. You + * may need to process the bytes in the interval [size_in_bytes()-truncated_bytes(), size_in_bytes()). + * + * You should only call truncated_bytes() after streaming through all + * documents, like so: + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto & doc : stream) { + * // do something with doc + * } + * size_t truncated = stream.truncated_bytes(); + * + */ + inline size_t truncated_bytes() const noexcept; + + class iterator { + public: + using value_type = simdjson_result; + using reference = value_type; + + using difference_type = std::ptrdiff_t; + + using iterator_category = std::input_iterator_tag; + + /** + * Default constructor. + */ + simdjson_inline iterator() noexcept; + /** + * Get the current document (or error). + */ + simdjson_inline simdjson_result operator*() noexcept; + /** + * Advance to the next document (prefix). + */ + inline iterator& operator++() noexcept; + /** + * Check if we're at the end yet. + * @param other the end iterator to compare to. + */ + simdjson_inline bool operator!=(const iterator &other) const noexcept; + /** + * @private + * + * Gives the current index in the input document in bytes. + * + * document_stream stream = parser.parse_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * auto doc = *i; + * size_t index = i.current_index(); + * } + * + * This function (current_index()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + */ + simdjson_inline size_t current_index() const noexcept; + + /** + * @private + * + * Gives a view of the current document at the current position. + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * std::string_view v = i.source(); + * } + * + * The returned string_view instance is simply a map to the (unparsed) + * source string: it may thus include white-space characters and all manner + * of padding. + * + * This function (source()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + * + */ + simdjson_inline std::string_view source() const noexcept; + + /** + * Returns error of the stream (if any). + */ + inline error_code error() const noexcept; + + private: + simdjson_inline iterator(document_stream *s, bool finished) noexcept; + /** The document_stream we're iterating through. */ + document_stream* stream; + /** Whether we're finished or not. */ + bool finished; + + friend class document; + friend class document_stream; + friend class json_iterator; + }; + + /** + * Start iterating the documents in the stream. + */ + simdjson_inline iterator begin() noexcept; + /** + * The end of the stream, for iterator comparison purposes. + */ + simdjson_inline iterator end() noexcept; + +private: + + document_stream &operator=(const document_stream &) = delete; // Disallow copying + document_stream(const document_stream &other) = delete; // Disallow copying + + /** + * Construct a document_stream. Does not allocate or parse anything until the iterator is + * used. + * + * @param parser is a reference to the parser instance used to generate this document_stream + * @param buf is the raw byte buffer we need to process + * @param len is the length of the raw byte buffer in bytes + * @param batch_size is the size of the windows (must be strictly greater or equal to the largest JSON document) + */ + simdjson_inline document_stream( + ondemand::parser &parser, + const uint8_t *buf, + size_t len, + size_t batch_size, + bool allow_comma_separated + ) noexcept; + + /** + * Parse the first document in the buffer. Used by begin(), to handle allocation and + * initialization. + */ + inline void start() noexcept; + + /** + * Parse the next document found in the buffer previously given to document_stream. + * + * The content should be a valid JSON document encoded as UTF-8. If there is a + * UTF-8 BOM, the caller is responsible for omitting it, UTF-8 BOM are + * discouraged. + * + * You do NOT need to pre-allocate a parser. This function takes care of + * pre-allocating a capacity defined by the batch_size defined when creating the + * document_stream object. + * + * The function returns simdjson::EMPTY if there is no more data to be parsed. + * + * The function returns simdjson::SUCCESS (as integer = 0) in case of success + * and indicates that the buffer has successfully been parsed to the end. + * Every document it contained has been parsed without error. + * + * The function returns an error code from simdjson/simdjson.h in case of failure + * such as simdjson::CAPACITY, simdjson::MEMALLOC, simdjson::DEPTH_ERROR and so forth; + * the simdjson::error_message function converts these error codes into a string). + * + * You can also check validity by calling parser.is_valid(). The same parser can + * and should be reused for the other documents in the buffer. + */ + inline void next() noexcept; + + /** Move the json_iterator of the document to the location of the next document in the stream. */ + inline void next_document() noexcept; + + /** Get the next document index. */ + inline size_t next_batch_start() const noexcept; + + /** Pass the next batch through stage 1 with the given parser. */ + inline error_code run_stage1(ondemand::parser &p, size_t batch_start) noexcept; + + // Fields + ondemand::parser *parser; + const uint8_t *buf; + size_t len; + size_t batch_size; + bool allow_comma_separated; + /** + * We are going to use just one document instance. The document owns + * the json_iterator. It implies that we only ever pass a reference + * to the document to the users. + */ + document doc{}; + /** The error (or lack thereof) from the current document. */ + error_code error; + size_t batch_start{0}; + size_t doc_index{}; + + #ifdef SIMDJSON_THREADS_ENABLED + /** Indicates whether we use threads. Note that this needs to be a constant during the execution of the parsing. */ + bool use_thread; + + inline void load_from_stage1_thread() noexcept; + + /** Start a thread to run stage 1 on the next batch. */ + inline void start_stage1_thread() noexcept; + + /** Wait for the stage 1 thread to finish and capture the results. */ + inline void finish_stage1_thread() noexcept; + + /** The error returned from the stage 1 thread. */ + error_code stage1_thread_error{UNINITIALIZED}; + /** The thread used to run stage 1 against the next batch in the background. */ + std::unique_ptr worker{new(std::nothrow) stage1_worker()}; + /** + * The parser used to run stage 1 in the background. Will be swapped + * with the regular parser when finished. + */ + ondemand::parser stage1_thread_parser{}; + + friend struct stage1_worker; + #endif // SIMDJSON_THREADS_ENABLED + + friend class parser; + friend class document; + friend class json_iterator; + friend struct simdjson_result; + friend struct internal::simdjson_result_base; +}; // document_stream + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::document_stream &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H +/* end file simdjson/generic/ondemand/document_stream.h for haswell */ +/* including simdjson/generic/ondemand/field.h for haswell: #include "simdjson/generic/ondemand/field.h" */ +/* begin file simdjson/generic/ondemand/field.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * A JSON field (key/value pair) in an object. + * + * Returned from object iteration. + * + * Extends from std::pair so you can use C++ algorithms that rely on pairs. + */ +class field : public std::pair { +public: + /** + * Create a new invalid field. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline field() noexcept; + + /** + * Get the key as a string_view (for higher speed, consider raw_key). + * We deliberately use a more cumbersome name (unescaped_key) to force users + * to think twice about using it. + * + * This consumes the key: once you have called unescaped_key(), you cannot + * call it again nor can you call key(). + */ + simdjson_inline simdjson_warn_unused simdjson_result unescaped_key(bool allow_replacement) noexcept; + /** + * Get the key as a raw_json_string. Can be used for direct comparison with + * an unescaped C string: e.g., key() == "test". + */ + simdjson_inline raw_json_string key() const noexcept; + /** + * Get the field value. + */ + simdjson_inline ondemand::value &value() & noexcept; + /** + * @overload ondemand::value &ondemand::value() & noexcept + */ + simdjson_inline ondemand::value value() && noexcept; + +protected: + simdjson_inline field(raw_json_string key, ondemand::value &&value) noexcept; + static simdjson_inline simdjson_result start(value_iterator &parent_iter) noexcept; + static simdjson_inline simdjson_result start(const value_iterator &parent_iter, raw_json_string key) noexcept; + friend struct simdjson_result; + friend class object_iterator; +}; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::field &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result unescaped_key(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result key() noexcept; + simdjson_inline simdjson_result value() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_H +/* end file simdjson/generic/ondemand/field.h for haswell */ +/* including simdjson/generic/ondemand/object.h for haswell: #include "simdjson/generic/ondemand/object.h" */ +/* begin file simdjson/generic/ondemand/object.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +/** + * A forward-only JSON object field iterator. + */ +class object { +public: + /** + * Create a new invalid object. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a + * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an object + * instance: there is no rewind and no invalidation. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + + /** + * Reset the iterator so that we are pointing back at the + * beginning of the object. You should still consume values only once even if you + * can iterate through the object more than once. If you unescape a string within + * the object more than once, you have unsafe code. Note that rewinding an object + * means that you may need to reparse it anew: it is not a free operation. + * + * @returns true if the object contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * This method scans the beginning of the object and checks whether the + * object is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + inline simdjson_result is_empty() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Consumes the object and returns a string_view instance corresponding to the + * object as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + +protected: + /** + * Go to the end of the object, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + static simdjson_inline object resume(const value_iterator &iter) noexcept; + simdjson_inline object(const value_iterator &iter) noexcept; + + simdjson_warn_unused simdjson_inline error_code find_field_raw(const std::string_view key) noexcept; + + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::object &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + inline simdjson_result reset() noexcept; + inline simdjson_result is_empty() noexcept; + inline simdjson_result count_fields() & noexcept; + inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_H +/* end file simdjson/generic/ondemand/object.h for haswell */ +/* including simdjson/generic/ondemand/object_iterator.h for haswell: #include "simdjson/generic/ondemand/object_iterator.h" */ +/* begin file simdjson/generic/ondemand/object_iterator.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +class object_iterator { +public: + /** + * Create a new invalid object_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object_iterator() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline simdjson_result operator*() noexcept; + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const object_iterator &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const object_iterator &) const noexcept; + // Checks for ']' and ',' + simdjson_inline object_iterator &operator++() noexcept; + +private: + /** + * The underlying JSON iterator. + * + * PERF NOTE: expected to be elided in favor of the parent document: this is set when the object + * is first used, and never changes afterwards. + */ + value_iterator iter{}; + + simdjson_inline object_iterator(const value_iterator &iter) noexcept; + friend struct simdjson_result; + friend class object; +}; + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public haswell::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(haswell::ondemand::object_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + // Checks for ']' and ',' + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H +/* end file simdjson/generic/ondemand/object_iterator.h for haswell */ +/* including simdjson/generic/ondemand/serialization.h for haswell: #include "simdjson/generic/ondemand/serialization.h" */ +/* begin file simdjson/generic/ondemand/serialization.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Create a string-view instance out of a document instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(haswell::ondemand::document& x) noexcept; +/** + * Create a string-view instance out of a value instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. The value must + * not have been accessed previously. It does not + * validate the content. + */ +inline simdjson_result to_json_string(haswell::ondemand::value& x) noexcept; +/** + * Create a string-view instance out of an object instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(haswell::ondemand::object& x) noexcept; +/** + * Create a string-view instance out of an array instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(haswell::ondemand::array& x) noexcept; +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +} // namespace simdjson + +/** + * We want to support argument-dependent lookup (ADL). + * Hence we should define operator<< in the namespace + * where the argument (here value, object, etc.) resides. + * Credit: @madhur4127 + * See https://github.com/simdjson/simdjson/issues/1768 + */ +namespace simdjson { namespace haswell { namespace ondemand { + +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The element. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::value x); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::array value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::document& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::document_reference& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The object. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::object value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +}}} // namespace simdjson::haswell::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H +/* end file simdjson/generic/ondemand/serialization.h for haswell */ + +// Inline definitions +/* including simdjson/generic/ondemand/array-inl.h for haswell: #include "simdjson/generic/ondemand/array-inl.h" */ +/* begin file simdjson/generic/ondemand/array-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter->depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the array is first found and the iterator is just past the `{`. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the `,` before the next value (or `]`). In this state, +// depth == iter->depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter->depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter->depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the array iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet element may be missing or not be an +// array--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter->depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between elements, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter->depth == depth, and at_start == false. +// +// ## Terminal State +// +// The terminal state has iter->depth < depth. at_start is always false. +// +// - Finished: When we have reached a `]` or have reported an error, we are finished. We signal this +// by decrementing depth. In this state, iter->depth < depth, at_start == false, and +// error == SUCCESS. +// + +simdjson_inline array::array(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result array::start(value_iterator &iter) noexcept { + // We don't need to know if the array is empty to start iteration, but we do want to know if there + // is an error--thus `simdjson_unused`. + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::start_root(value_iterator &iter) noexcept { + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_root_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::started(value_iterator &iter) noexcept { + bool has_value; + SIMDJSON_TRY(iter.started_array().get(has_value)); + return array(iter); +} + +simdjson_inline simdjson_result array::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return array_iterator(iter); +} +simdjson_inline simdjson_result array::end() noexcept { + return array_iterator(iter); +} +simdjson_inline error_code array::consume() noexcept { + auto error = iter.json_iter().skip_child(iter.depth()-1); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result array::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter._json_iter->unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline simdjson_result array::count_elements() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the array after counting the number of elements. + iter.reset_array(); + return count; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline simdjson_result array::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_array().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +inline simdjson_result array::reset() & noexcept { + return iter.reset_array(); +} + +inline simdjson_result array::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } + + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } + + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" + + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + // Get the child + auto child = at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; + } + + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); + } + return child; +} + +simdjson_inline simdjson_result array::at(size_t index) noexcept { + size_t i = 0; + for (auto value : *this) { + if (i == index) { return value; } + i++; + } + return INDEX_OUT_OF_BOUNDS; +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + haswell::ondemand::array &&value +) noexcept + : implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept + : implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::is_empty() & noexcept { + if (error()) { return error(); } + return first.is_empty(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H +/* end file simdjson/generic/ondemand/array-inl.h for haswell */ +/* including simdjson/generic/ondemand/array_iterator-inl.h for haswell: #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/array_iterator-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result array_iterator::operator*() noexcept { + if (iter.error()) { iter.abandon(); return iter.error(); } + return value(iter.child()); +} +simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept { + return iter.is_open(); +} +simdjson_inline array_iterator &array_iterator::operator++() noexcept { + error_code error; + // PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here. + // However, it does not seem to make a perf difference, so we add it out of an abundance of caution. + if (( error = iter.error() )) { return *this; } + if (( error = iter.skip_child() )) { return *this; } + if (( error = iter.has_next_element().error() )) { return *this; } + return *this; +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + haswell::ondemand::array_iterator &&value +) noexcept + : haswell::implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : haswell::implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++(first); + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/array_iterator-inl.h for haswell */ +/* including simdjson/generic/ondemand/document-inl.h for haswell: #include "simdjson/generic/ondemand/document-inl.h" */ +/* begin file simdjson/generic/ondemand/document-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline document::document(ondemand::json_iterator &&_iter) noexcept + : iter{std::forward(_iter)} +{ + logger::log_start_value(iter, "document"); +} + +simdjson_inline document document::start(json_iterator &&iter) noexcept { + return document(std::forward(iter)); +} + +inline void document::rewind() noexcept { + iter.rewind(); +} + +inline std::string document::to_debug_string() noexcept { + return iter.to_string(); +} + +inline simdjson_result document::current_location() const noexcept { + return iter.current_location(); +} + +inline int32_t document::current_depth() const noexcept { + return iter.depth(); +} + +inline bool document::at_end() const noexcept { + return iter.at_end(); +} + + +inline bool document::is_alive() noexcept { + return iter.is_alive(); +} +simdjson_inline value_iterator document::resume_value_iterator() noexcept { + return value_iterator(&iter, 1, iter.root_position()); +} +simdjson_inline value_iterator document::get_root_value_iterator() noexcept { + return resume_value_iterator(); +} +simdjson_inline simdjson_result document::start_or_resume_object() noexcept { + if (iter.at_root()) { + return get_object(); + } else { + return object::resume(resume_value_iterator()); + } +} +simdjson_inline simdjson_result document::get_value() noexcept { + // Make sure we start any arrays or objects before returning, so that start_root_() + // gets called. + iter.assert_at_document_depth(); + switch (*iter.peek()) { + case '[': { + // The following lines check that the document ends with ]. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_array(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + case '{': { + // The following lines would check that the document ends with }. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_object(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + default: + // Unfortunately, scalar documents are a special case in simdjson and they cannot + // be safely converted to value instances. + return SCALAR_DOCUMENT_AS_VALUE; + } +} +simdjson_inline simdjson_result document::get_array() & noexcept { + auto value = get_root_value_iterator(); + return array::start_root(value); +} +simdjson_inline simdjson_result document::get_object() & noexcept { + auto value = get_root_value_iterator(); + return object::start_root(value); +} + +/** + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. We want to disallow trailing + * content. + * Thus, in several implementations below, we pass a 'true' parameter value to + * a get_root_value_iterator() method: this indicates that we disallow trailing content. + */ + +simdjson_inline simdjson_result document::get_uint64() noexcept { + return get_root_value_iterator().get_root_uint64(true); +} +simdjson_inline simdjson_result document::get_uint64_in_string() noexcept { + return get_root_value_iterator().get_root_uint64_in_string(true); +} +simdjson_inline simdjson_result document::get_int64() noexcept { + return get_root_value_iterator().get_root_int64(true); +} +simdjson_inline simdjson_result document::get_int64_in_string() noexcept { + return get_root_value_iterator().get_root_int64_in_string(true); +} +simdjson_inline simdjson_result document::get_double() noexcept { + return get_root_value_iterator().get_root_double(true); +} +simdjson_inline simdjson_result document::get_double_in_string() noexcept { + return get_root_value_iterator().get_root_double_in_string(true); +} +simdjson_inline simdjson_result document::get_string(bool allow_replacement) noexcept { + return get_root_value_iterator().get_root_string(true, allow_replacement); +} +simdjson_inline simdjson_result document::get_wobbly_string() noexcept { + return get_root_value_iterator().get_root_wobbly_string(true); +} +simdjson_inline simdjson_result document::get_raw_json_string() noexcept { + return get_root_value_iterator().get_root_raw_json_string(true); +} +simdjson_inline simdjson_result document::get_bool() noexcept { + return get_root_value_iterator().get_root_bool(true); +} +simdjson_inline simdjson_result document::is_null() noexcept { + return get_root_value_iterator().is_root_null(true); +} + +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_array(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_object(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_double(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_bool(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_value(); } + +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_double(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_uint64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_int64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_bool(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_value(); } + +template simdjson_inline error_code document::get(T &out) & noexcept { + return get().get(out); +} +template simdjson_inline error_code document::get(T &out) && noexcept { + return std::forward(*this).get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document::operator array() & noexcept(false) { return get_array(); } +simdjson_inline document::operator object() & noexcept(false) { return get_object(); } +simdjson_inline document::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document::operator double() noexcept(false) { return get_double(); } +simdjson_inline document::operator std::string_view() noexcept(false) { return get_string(false); } +simdjson_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); } +simdjson_inline document::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document::operator value() noexcept(false) { return get_value(); } + +#endif +simdjson_inline simdjson_result document::count_elements() & noexcept { + auto a = get_array(); + simdjson_result answer = a.count_elements(); + /* If there was an array, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::count_fields() & noexcept { + auto a = get_object(); + simdjson_result answer = a.count_fields(); + /* If there was an object, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::at(size_t index) & noexcept { + auto a = get_array(); + return a.at(index); +} +simdjson_inline simdjson_result document::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result document::end() & noexcept { + return {}; +} + +simdjson_inline simdjson_result document::find_field(std::string_view key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field(const char *key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field_unordered(std::string_view key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::find_field_unordered(const char *key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::operator[](std::string_view key) & noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result document::operator[](const char *key) & noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline error_code document::consume() noexcept { + auto error = iter.skip_child(0); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result document::raw_json() noexcept { + auto _iter = get_root_value_iterator(); + const uint8_t * starting_point{_iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter.unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result document::type() noexcept { + return get_root_value_iterator().type(); +} + +simdjson_inline simdjson_result document::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool document::is_negative() noexcept { + return get_root_value_iterator().is_root_negative(); +} + +simdjson_inline simdjson_result document::is_integer() noexcept { + return get_root_value_iterator().is_root_integer(true); +} + +simdjson_inline simdjson_result document::get_number_type() noexcept { + return get_root_value_iterator().get_root_number_type(true); +} + +simdjson_inline simdjson_result document::get_number() noexcept { + return get_root_value_iterator().get_root_number(true); +} + + +simdjson_inline simdjson_result document::raw_json_token() noexcept { + auto _iter = get_root_value_iterator(); + return std::string_view(reinterpret_cast(_iter.peek_start()), _iter.peek_start_length()); +} + +simdjson_inline simdjson_result document::at_pointer(std::string_view json_pointer) noexcept { + rewind(); // Rewind the document each time at_pointer is called + if (json_pointer.empty()) { + return this->get_value(); + } + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + haswell::ondemand::document &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base( + error + ) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template +simdjson_inline simdjson_result simdjson_result::get() & noexcept { + if (error()) { return error(); } + return first.get(); +} +template +simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first).get(); +} +template +simdjson_inline error_code simdjson_result::get(T &out) & noexcept { + if (error()) { return error(); } + return first.get(out); +} +template +simdjson_inline error_code simdjson_result::get(T &out) && noexcept { + if (error()) { return error(); } + return std::forward(first).get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() & noexcept = delete; +template<> simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first); +} +template<> simdjson_inline error_code simdjson_result::get(haswell::ondemand::document &out) & noexcept = delete; +template<> simdjson_inline error_code simdjson_result::get(haswell::ondemand::document &out) && noexcept { + if (error()) { return error(); } + out = std::forward(first); + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} + +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} + + +simdjson_inline bool simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} + +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} + +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} + +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} + + +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator haswell::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator haswell::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator haswell::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator haswell::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline bool simdjson_result::at_end() const noexcept { + if (error()) { return error(); } + return first.at_end(); +} + + +simdjson_inline int32_t simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline document_reference::document_reference() noexcept : doc{nullptr} {} +simdjson_inline document_reference::document_reference(document &d) noexcept : doc(&d) {} +simdjson_inline void document_reference::rewind() noexcept { doc->rewind(); } +simdjson_inline simdjson_result document_reference::get_array() & noexcept { return doc->get_array(); } +simdjson_inline simdjson_result document_reference::get_object() & noexcept { return doc->get_object(); } +/** + * The document_reference instances are used primarily/solely for streams of JSON + * documents. + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. + * + * However, for streams of JSON documents, we want to be able to start from + * "321" "321" "321" + * and parse it successfully as a stream of JSON documents, calling get_uint64_in_string() + * successfully each time. + * + * To achieve this result, we pass a 'false' to a get_root_value_iterator() method: + * this indicates that we allow trailing content. + */ +simdjson_inline simdjson_result document_reference::get_uint64() noexcept { return doc->get_root_value_iterator().get_root_uint64(false); } +simdjson_inline simdjson_result document_reference::get_uint64_in_string() noexcept { return doc->get_root_value_iterator().get_root_uint64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_int64() noexcept { return doc->get_root_value_iterator().get_root_int64(false); } +simdjson_inline simdjson_result document_reference::get_int64_in_string() noexcept { return doc->get_root_value_iterator().get_root_int64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_double() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_double_in_string() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_string(bool allow_replacement) noexcept { return doc->get_root_value_iterator().get_root_string(false, allow_replacement); } +simdjson_inline simdjson_result document_reference::get_wobbly_string() noexcept { return doc->get_root_value_iterator().get_root_wobbly_string(false); } +simdjson_inline simdjson_result document_reference::get_raw_json_string() noexcept { return doc->get_root_value_iterator().get_root_raw_json_string(false); } +simdjson_inline simdjson_result document_reference::get_bool() noexcept { return doc->get_root_value_iterator().get_root_bool(false); } +simdjson_inline simdjson_result document_reference::get_value() noexcept { return doc->get_value(); } +simdjson_inline simdjson_result document_reference::is_null() noexcept { return doc->get_root_value_iterator().is_root_null(false); } + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document_reference::operator array() & noexcept(false) { return array(*doc); } +simdjson_inline document_reference::operator object() & noexcept(false) { return object(*doc); } +simdjson_inline document_reference::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document_reference::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document_reference::operator double() noexcept(false) { return get_double(); } +simdjson_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); } +simdjson_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); } +simdjson_inline document_reference::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document_reference::operator value() noexcept(false) { return value(*doc); } +#endif +simdjson_inline simdjson_result document_reference::count_elements() & noexcept { return doc->count_elements(); } +simdjson_inline simdjson_result document_reference::count_fields() & noexcept { return doc->count_fields(); } +simdjson_inline simdjson_result document_reference::at(size_t index) & noexcept { return doc->at(index); } +simdjson_inline simdjson_result document_reference::begin() & noexcept { return doc->begin(); } +simdjson_inline simdjson_result document_reference::end() & noexcept { return doc->end(); } +simdjson_inline simdjson_result document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::type() noexcept { return doc->type(); } +simdjson_inline simdjson_result document_reference::is_scalar() noexcept { return doc->is_scalar(); } +simdjson_inline simdjson_result document_reference::current_location() noexcept { return doc->current_location(); } +simdjson_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); } +simdjson_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); } +simdjson_inline simdjson_result document_reference::is_integer() noexcept { return doc->get_root_value_iterator().is_root_integer(false); } +simdjson_inline simdjson_result document_reference::get_number_type() noexcept { return doc->get_root_value_iterator().get_root_number_type(false); } +simdjson_inline simdjson_result document_reference::get_number() noexcept { return doc->get_root_value_iterator().get_root_number(false); } +simdjson_inline simdjson_result document_reference::raw_json_token() noexcept { return doc->raw_json_token(); } +simdjson_inline simdjson_result document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); } +simdjson_inline simdjson_result document_reference::raw_json() noexcept { return doc->raw_json();} +simdjson_inline document_reference::operator document&() const noexcept { return *doc; } + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + + + +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(haswell::ondemand::document_reference value, error_code error) + noexcept : implementation_simdjson_result_base(std::forward(value), error) {} + + +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator haswell::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator haswell::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator haswell::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator haswell::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H +/* end file simdjson/generic/ondemand/document-inl.h for haswell */ +/* including simdjson/generic/ondemand/document_stream-inl.h for haswell: #include "simdjson/generic/ondemand/document_stream-inl.h" */ +/* begin file simdjson/generic/ondemand/document_stream-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace haswell { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void stage1_worker::finish() { + // After calling "run" someone would call finish() to wait + // for the end of the processing. + // This function will wait until either the thread has done + // the processing or, else, the destructor has been called. + std::unique_lock lock(locking_mutex); + cond_var.wait(lock, [this]{return has_work == false;}); +} + +inline stage1_worker::~stage1_worker() { + // The thread may never outlive the stage1_worker instance + // and will always be stopped/joined before the stage1_worker + // instance is gone. + stop_thread(); +} + +inline void stage1_worker::start_thread() { + std::unique_lock lock(locking_mutex); + if(thread.joinable()) { + return; // This should never happen but we never want to create more than one thread. + } + thread = std::thread([this]{ + while(true) { + std::unique_lock thread_lock(locking_mutex); + // We wait for either "run" or "stop_thread" to be called. + cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); + // If, for some reason, the stop_thread() method was called (i.e., the + // destructor of stage1_worker is called, then we want to immediately destroy + // the thread (and not do any more processing). + if(!can_work) { + break; + } + this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, + this->_next_batch_start); + this->has_work = false; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify "finish" + thread_lock.unlock(); + } + } + ); +} + + +inline void stage1_worker::stop_thread() { + std::unique_lock lock(locking_mutex); + // We have to make sure that all locks can be released. + can_work = false; + has_work = false; + cond_var.notify_all(); + lock.unlock(); + if(thread.joinable()) { + thread.join(); + } +} + +inline void stage1_worker::run(document_stream * ds, parser * stage1, size_t next_batch_start) { + std::unique_lock lock(locking_mutex); + owner = ds; + _next_batch_start = next_batch_start; + stage1_thread_parser = stage1; + has_work = true; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify the thread lock that we have work + lock.unlock(); +} + +#endif // SIMDJSON_THREADS_ENABLED + +simdjson_inline document_stream::document_stream( + ondemand::parser &_parser, + const uint8_t *_buf, + size_t _len, + size_t _batch_size, + bool _allow_comma_separated +) noexcept + : parser{&_parser}, + buf{_buf}, + len{_len}, + batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, + allow_comma_separated{_allow_comma_separated}, + error{SUCCESS} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change + #endif +{ +#ifdef SIMDJSON_THREADS_ENABLED + if(worker.get() == nullptr) { + error = MEMALLOC; + } +#endif +} + +simdjson_inline document_stream::document_stream() noexcept + : parser{nullptr}, + buf{nullptr}, + len{0}, + batch_size{0}, + allow_comma_separated{false}, + error{UNINITIALIZED} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(false) + #endif +{ +} + +simdjson_inline document_stream::~document_stream() noexcept +{ + #ifdef SIMDJSON_THREADS_ENABLED + worker.reset(); + #endif +} + +inline size_t document_stream::size_in_bytes() const noexcept { + return len; +} + +inline size_t document_stream::truncated_bytes() const noexcept { + if(error == CAPACITY) { return len - batch_start; } + return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; +} + +simdjson_inline document_stream::iterator::iterator() noexcept + : stream{nullptr}, finished{true} { +} + +simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept + : stream{_stream}, finished{is_end} { +} + +simdjson_inline simdjson_result document_stream::iterator::operator*() noexcept { + //if(stream->error) { return stream->error; } + return simdjson_result(stream->doc, stream->error); +} + +simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { + // If there is an error, then we want the iterator + // to be finished, no matter what. (E.g., we do not + // keep generating documents with errors, or go beyond + // a document with errors.) + // + // Users do not have to call "operator*()" when they use operator++, + // so we need to end the stream in the operator++ function. + // + // Note that setting finished = true is essential otherwise + // we would enter an infinite loop. + if (stream->error) { finished = true; } + // Note that stream->error() is guarded against error conditions + // (it will immediately return if stream->error casts to false). + // In effect, this next function does nothing when (stream->error) + // is true (hence the risk of an infinite loop). + stream->next(); + // If that was the last document, we're finished. + // It is the only type of error we do not want to appear + // in operator*. + if (stream->error == EMPTY) { finished = true; } + // If we had any other kind of error (not EMPTY) then we want + // to pass it along to the operator* and we cannot mark the result + // as "finished" just yet. + return *this; +} + +simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { + return finished != other.finished; +} + +simdjson_inline document_stream::iterator document_stream::begin() noexcept { + start(); + // If there are no documents, we're finished. + return iterator(this, error == EMPTY); +} + +simdjson_inline document_stream::iterator document_stream::end() noexcept { + return iterator(this, true); +} + +inline void document_stream::start() noexcept { + if (error) { return; } + error = parser->allocate(batch_size); + if (error) { return; } + // Always run the first stage 1 parse immediately + batch_start = 0; + error = run_stage1(*parser, batch_start); + while(error == EMPTY) { + // In exceptional cases, we may start with an empty block + batch_start = next_batch_start(); + if (batch_start >= len) { return; } + error = run_stage1(*parser, batch_start); + } + if (error) { return; } + doc_index = batch_start; + doc = document(json_iterator(&buf[batch_start], parser)); + doc.iter._streaming = true; + + #ifdef SIMDJSON_THREADS_ENABLED + if (use_thread && next_batch_start() < len) { + // Kick off the first thread on next batch if needed + error = stage1_thread_parser.allocate(batch_size); + if (error) { return; } + worker->start_thread(); + start_stage1_thread(); + if (error) { return; } + } + #endif // SIMDJSON_THREADS_ENABLED +} + +inline void document_stream::next() noexcept { + // We always enter at once once in an error condition. + if (error) { return; } + next_document(); + if (error) { return; } + auto cur_struct_index = doc.iter._root - parser->implementation->structural_indexes.get(); + doc_index = batch_start + parser->implementation->structural_indexes[cur_struct_index]; + + // Check if at end of structural indexes (i.e. at end of batch) + if(cur_struct_index >= static_cast(parser->implementation->n_structural_indexes)) { + error = EMPTY; + // Load another batch (if available) + while (error == EMPTY) { + batch_start = next_batch_start(); + if (batch_start >= len) { break; } + #ifdef SIMDJSON_THREADS_ENABLED + if(use_thread) { + load_from_stage1_thread(); + } else { + error = run_stage1(*parser, batch_start); + } + #else + error = run_stage1(*parser, batch_start); + #endif + /** + * Whenever we move to another window, we need to update all pointers to make + * it appear as if the input buffer started at the beginning of the window. + * + * Take this input: + * + * {"z":5} {"1":1,"2":2,"4":4} [7, 10, 9] [15, 11, 12, 13] [154, 110, 112, 1311] + * + * Say you process the following window... + * + * '{"z":5} {"1":1,"2":2,"4":4} [7, 10, 9]' + * + * When you do so, the json_iterator has a pointer at the beginning of the memory region + * (pointing at the beginning of '{"z"...'. + * + * When you move to the window that starts at... + * + * '[7, 10, 9] [15, 11, 12, 13] ... + * + * then it is not sufficient to just run stage 1. You also need to re-anchor the + * json_iterator so that it believes we are starting at '[7, 10, 9]...'. + * + * Under the DOM front-end, this gets done automatically because the parser owns + * the pointer the data, and when you call stage1 and then stage2 on the same + * parser, then stage2 will run on the pointer acquired by stage1. + * + * That is, stage1 calls "this->buf = _buf" so the parser remembers the buffer that + * we used. But json_iterator has no callback when stage1 is called on the parser. + * In fact, I think that the parser is unaware of json_iterator. + * + * + * So we need to re-anchor the json_iterator after each call to stage 1 so that + * all of the pointers are in sync. + */ + doc.iter = json_iterator(&buf[batch_start], parser); + doc.iter._streaming = true; + /** + * End of resync. + */ + + if (error) { continue; } // If the error was EMPTY, we may want to load another batch. + doc_index = batch_start; + } + } +} + +inline void document_stream::next_document() noexcept { + // Go to next place where depth=0 (document depth) + error = doc.iter.skip_child(0); + if (error) { return; } + // Always set depth=1 at the start of document + doc.iter._depth = 1; + // consume comma if comma separated is allowed + if (allow_comma_separated) { doc.iter.consume_character(','); } + // Resets the string buffer at the beginning, thus invalidating the strings. + doc.iter._string_buf_loc = parser->string_buf.get(); + doc.iter._root = doc.iter.position(); +} + +inline size_t document_stream::next_batch_start() const noexcept { + return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; +} + +inline error_code document_stream::run_stage1(ondemand::parser &p, size_t _batch_start) noexcept { + // This code only updates the structural index in the parser, it does not update any json_iterator + // instance. + size_t remaining = len - _batch_start; + if (remaining <= batch_size) { + return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); + } else { + return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); + } +} + +simdjson_inline size_t document_stream::iterator::current_index() const noexcept { + return stream->doc_index; +} + +simdjson_inline std::string_view document_stream::iterator::source() const noexcept { + auto depth = stream->doc.iter.depth(); + auto cur_struct_index = stream->doc.iter._root - stream->parser->implementation->structural_indexes.get(); + + // If at root, process the first token to determine if scalar value + if (stream->doc.iter.at_root()) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': // Depth=1 already at start of document + break; + case '}': case ']': + depth--; + break; + default: // Scalar value document + // TODO: Remove any trailing whitespaces + // This returns a string spanning from start of value to the beginning of the next document (excluded) + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[++cur_struct_index] - current_index() - 1); + } + cur_struct_index++; + } + + while (cur_struct_index <= static_cast(stream->parser->implementation->n_structural_indexes)) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': + depth++; + break; + case '}': case ']': + depth--; + break; + } + if (depth == 0) { break; } + cur_struct_index++; + } + + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);; +} + +inline error_code document_stream::iterator::error() const noexcept { + return stream->error; +} + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void document_stream::load_from_stage1_thread() noexcept { + worker->finish(); + // Swap to the parser that was loaded up in the thread. Make sure the parser has + // enough memory to swap to, as well. + std::swap(stage1_thread_parser,*parser); + error = stage1_thread_error; + if (error) { return; } + + // If there's anything left, start the stage 1 thread! + if (next_batch_start() < len) { + start_stage1_thread(); + } +} + +inline void document_stream::start_stage1_thread() noexcept { + // we call the thread on a lambda that will update + // this->stage1_thread_error + // there is only one thread that may write to this value + // TODO this is NOT exception-safe. + this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error + size_t _next_batch_start = this->next_batch_start(); + + worker->run(this, & this->stage1_thread_parser, _next_batch_start); +} + +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result::simdjson_result( + haswell::ondemand::document_stream &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} + +} + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H +/* end file simdjson/generic/ondemand/document_stream-inl.h for haswell */ +/* including simdjson/generic/ondemand/field-inl.h for haswell: #include "simdjson/generic/ondemand/field-inl.h" */ +/* begin file simdjson/generic/ondemand/field-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +// clang 6 doesn't think the default constructor can be noexcept, so we make it explicit +simdjson_inline field::field() noexcept : std::pair() {} + +simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept + : std::pair(key, std::forward(value)) +{ +} + +simdjson_inline simdjson_result field::start(value_iterator &parent_iter) noexcept { + raw_json_string key; + SIMDJSON_TRY( parent_iter.field_key().get(key) ); + SIMDJSON_TRY( parent_iter.field_value() ); + return field::start(parent_iter, key); +} + +simdjson_inline simdjson_result field::start(const value_iterator &parent_iter, raw_json_string key) noexcept { + return field(key, parent_iter.child()); +} + +simdjson_inline simdjson_warn_unused simdjson_result field::unescaped_key(bool allow_replacement) noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us. + simdjson_result answer = first.unescape(second.iter.json_iter(), allow_replacement); + first.consume(); + return answer; +} + +simdjson_inline raw_json_string field::key() const noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us. + return first; +} + +simdjson_inline value &field::value() & noexcept { + return second; +} + +simdjson_inline value field::value() && noexcept { + return std::forward(*this).second; +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + haswell::ondemand::field &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::key() noexcept { + if (error()) { return error(); } + return first.key(); +} +simdjson_inline simdjson_result simdjson_result::unescaped_key(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.unescaped_key(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::value() noexcept { + if (error()) { return error(); } + return std::move(first.value()); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H +/* end file simdjson/generic/ondemand/field-inl.h for haswell */ +/* including simdjson/generic/ondemand/json_iterator-inl.h for haswell: #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/json_iterator-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline json_iterator::json_iterator(json_iterator &&other) noexcept + : token(std::forward(other.token)), + parser{other.parser}, + _string_buf_loc{other._string_buf_loc}, + error{other.error}, + _depth{other._depth}, + _root{other._root}, + _streaming{other._streaming} +{ + other.parser = nullptr; +} +simdjson_inline json_iterator &json_iterator::operator=(json_iterator &&other) noexcept { + token = other.token; + parser = other.parser; + _string_buf_loc = other._string_buf_loc; + error = other.error; + _depth = other._depth; + _root = other._root; + _streaming = other._streaming; + other.parser = nullptr; + return *this; +} + +simdjson_inline json_iterator::json_iterator(const uint8_t *buf, ondemand::parser *_parser) noexcept + : token(buf, &_parser->implementation->structural_indexes[0]), + parser{_parser}, + _string_buf_loc{parser->string_buf.get()}, + _depth{1}, + _root{parser->implementation->structural_indexes.get()}, + _streaming{false} + +{ + logger::log_headers(); +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif +} + +inline void json_iterator::rewind() noexcept { + token.set_position( root_position() ); + logger::log_headers(); // We start again + _string_buf_loc = parser->string_buf.get(); + _depth = 1; +} + +inline bool json_iterator::balanced() const noexcept { + token_iterator ti(token); + int32_t count{0}; + ti.set_position( root_position() ); + while(ti.peek() <= peek_last()) { + switch (*ti.return_current_and_advance()) + { + case '[': case '{': + count++; + break; + case ']': case '}': + count--; + break; + default: + break; + } + } + return count == 0; +} + + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and parent_depth, which is a desired effect. The warning does not show up if the +// skip_child() function is not marked inline). +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept { + if (depth() <= parent_depth) { return SUCCESS; } + switch (*return_current_and_advance()) { + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + + // For the first open array/object in a value, we've already incremented depth, so keep it the same + // We never stop at colon, but if we did, it wouldn't affect depth + case '[': case '{': case ':': + logger::log_start_value(*this, "skip"); + break; + // If there is a comma, we have just finished a value in an array/object, and need to get back in + case ',': + logger::log_value(*this, "skip"); + break; + // ] or } means we just finished a value and need to jump out of the array/object + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } +#if SIMDJSON_CHECK_EOF + // If there are no more tokens, the parent is incomplete. + if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + break; + case '"': + if(*peek() == ':') { + // We are at a key!!! + // This might happen if you just started an object and you skip it immediately. + // Performance note: it would be nice to get rid of this check as it is somewhat + // expensive. + // https://github.com/simdjson/simdjson/issues/1742 + logger::log_value(*this, "key"); + return_current_and_advance(); // eat up the ':' + break; // important!!! + } + simdjson_fallthrough; + // Anything else must be a scalar value + default: + // For the first scalar, we will have incremented depth already, so we decrement it here. + logger::log_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + } + + // Now that we've considered the first value, we only increment/decrement for arrays/objects + while (position() < end_position()) { + switch (*return_current_and_advance()) { + case '[': case '{': + logger::log_start_value(*this, "skip"); + _depth++; + break; + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + default: + logger::log_value(*this, "skip", ""); + break; + } + } + + return report_error(TAPE_ERROR, "not enough close braces"); +} + +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool json_iterator::at_root() const noexcept { + return position() == root_position(); +} + +simdjson_inline bool json_iterator::is_single_token() const noexcept { + return parser->implementation->n_structural_indexes == 1; +} + +simdjson_inline bool json_iterator::streaming() const noexcept { + return _streaming; +} + +simdjson_inline token_position json_iterator::root_position() const noexcept { + return _root; +} + +simdjson_inline void json_iterator::assert_at_document_depth() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +} + +simdjson_inline void json_iterator::assert_at_root() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + // Under Visual Studio, the next SIMDJSON_ASSUME fails with: the argument + // has side effects that will be discarded. + SIMDJSON_ASSUME( token.position() == _root ); +#endif +} + +simdjson_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept { + assert_valid_position(token._position + required_tokens - 1); +} + +simdjson_inline void json_iterator::assert_valid_position(token_position position) const noexcept { +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME( position >= &parser->implementation->structural_indexes[0] ); + SIMDJSON_ASSUME( position < &parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] ); +#endif +} + +simdjson_inline bool json_iterator::at_end() const noexcept { + return position() == end_position(); +} +simdjson_inline token_position json_iterator::end_position() const noexcept { + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + return &parser->implementation->structural_indexes[n_structural_indexes]; +} + +inline std::string json_iterator::to_string() const noexcept { + if( !is_alive() ) { return "dead json_iterator instance"; } + const char * current_structural = reinterpret_cast(token.peek()); + return std::string("json_iterator [ depth : ") + std::to_string(_depth) + + std::string(", structural : '") + std::string(current_structural,1) + + std::string("', offset : ") + std::to_string(token.current_offset()) + + std::string("', error : ") + error_message(error) + + std::string(" ]"); +} + +inline simdjson_result json_iterator::current_location() const noexcept { + if (!is_alive()) { // Unrecoverable error + if (!at_root()) { + return reinterpret_cast(token.peek(-1)); + } else { + return reinterpret_cast(token.peek()); + } + } + if (at_end()) { + return OUT_OF_BOUNDS; + } + return reinterpret_cast(token.peek()); +} + +simdjson_inline bool json_iterator::is_alive() const noexcept { + return parser; +} + +simdjson_inline void json_iterator::abandon() noexcept { + parser = nullptr; + _depth = 0; +} + +simdjson_inline const uint8_t *json_iterator::return_current_and_advance() noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif // SIMDJSON_CHECK_EOF + return token.return_current_and_advance(); +} + +simdjson_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept { + // deliberately done without safety guard: + return token.peek(); +} + +simdjson_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // SIMDJSON_CHECK_EOF + return token.peek(delta); +} + +simdjson_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // #if SIMDJSON_CHECK_EOF + return token.peek_length(delta); +} + +simdjson_inline const uint8_t *json_iterator::peek(token_position position) const noexcept { + // todo: currently we require end-of-string buffering, but the following + // assert_valid_position should be turned on if/when we lift that condition. + // assert_valid_position(position); + // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF + // is ON by default, we have no choice but to disable it for real with a comment. + return token.peek(position); +} + +simdjson_inline uint32_t json_iterator::peek_length(token_position position) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_valid_position(position); +#endif // SIMDJSON_CHECK_EOF + return token.peek_length(position); +} + +simdjson_inline token_position json_iterator::last_position() const noexcept { + // The following line fails under some compilers... + // SIMDJSON_ASSUME(parser->implementation->n_structural_indexes > 0); + // since it has side-effects. + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + SIMDJSON_ASSUME(n_structural_indexes > 0); + return &parser->implementation->structural_indexes[n_structural_indexes - 1]; +} +simdjson_inline const uint8_t *json_iterator::peek_last() const noexcept { + return token.peek(last_position()); +} + +simdjson_inline void json_iterator::ascend_to(depth_t parent_depth) noexcept { + SIMDJSON_ASSUME(parent_depth >= 0 && parent_depth < INT32_MAX - 1); + SIMDJSON_ASSUME(_depth == parent_depth + 1); + _depth = parent_depth; +} + +simdjson_inline void json_iterator::descend_to(depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); + _depth = child_depth; +} + +simdjson_inline depth_t json_iterator::depth() const noexcept { + return _depth; +} + +simdjson_inline uint8_t *&json_iterator::string_buf_loc() noexcept { + return _string_buf_loc; +} + +simdjson_inline error_code json_iterator::report_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error != SUCCESS && _error != UNINITIALIZED && _error != INCORRECT_TYPE && _error != NO_SUCH_FIELD); + logger::log_error(*this, message); + error = _error; + return error; +} + +simdjson_inline token_position json_iterator::position() const noexcept { + return token.position(); +} + +simdjson_inline simdjson_result json_iterator::unescape(raw_json_string in, bool allow_replacement) noexcept { + return parser->unescape(in, _string_buf_loc, allow_replacement); +} + +simdjson_inline simdjson_result json_iterator::unescape_wobbly(raw_json_string in) noexcept { + return parser->unescape_wobbly(in, _string_buf_loc); +} + +simdjson_inline void json_iterator::reenter_child(token_position position, depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); +#if SIMDJSON_DEVELOPMENT_CHECKS +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME(size_t(child_depth) < parser->max_depth()); + SIMDJSON_ASSUME(position >= parser->start_positions[child_depth]); +#endif +#endif + token.set_position(position); + _depth = child_depth; +} + +simdjson_inline error_code json_iterator::consume_character(char c) noexcept { + if (*peek() == c) { + return_current_and_advance(); + return SUCCESS; + } + return TAPE_ERROR; +} + +#if SIMDJSON_DEVELOPMENT_CHECKS + +simdjson_inline token_position json_iterator::start_position(depth_t depth) const noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + return size_t(depth) < parser->max_depth() ? parser->start_positions[depth] : 0; +} + +simdjson_inline void json_iterator::set_start_position(depth_t depth, token_position position) noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + if(size_t(depth) < parser->max_depth()) { parser->start_positions[depth] = position; } +} + +#endif + + +simdjson_inline error_code json_iterator::optional_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error == INCORRECT_TYPE || _error == NO_SUCH_FIELD); + logger::log_error(*this, message); + return _error; +} + + +simdjson_warn_unused simdjson_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept { + // This function is not expected to be called in performance-sensitive settings. + // Let us guard against silly cases: + if((N < max_len) || (N == 0)) { return false; } + // Copy to the buffer. + std::memcpy(tmpbuf, json, max_len); + if(N > max_len) { // We pad whatever remains with ' '. + std::memset(tmpbuf + max_len, ' ', N - max_len); + } + return true; +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(haswell::ondemand::json_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/json_iterator-inl.h for haswell */ +/* including simdjson/generic/ondemand/json_type-inl.h for haswell: #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* begin file simdjson/generic/ondemand/json_type-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept { + switch (type) { + case json_type::array: out << "array"; break; + case json_type::object: out << "object"; break; + case json_type::number: out << "number"; break; + case json_type::string: out << "string"; break; + case json_type::boolean: out << "boolean"; break; + case json_type::null: out << "null"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false) { + return out << type.value(); +} +#endif + + + +simdjson_inline number_type number::get_number_type() const noexcept { + return type; +} + +simdjson_inline bool number::is_uint64() const noexcept { + return get_number_type() == number_type::unsigned_integer; +} + +simdjson_inline uint64_t number::get_uint64() const noexcept { + return payload.unsigned_integer; +} + +simdjson_inline number::operator uint64_t() const noexcept { + return get_uint64(); +} + + +simdjson_inline bool number::is_int64() const noexcept { + return get_number_type() == number_type::signed_integer; +} + +simdjson_inline int64_t number::get_int64() const noexcept { + return payload.signed_integer; +} + +simdjson_inline number::operator int64_t() const noexcept { + return get_int64(); +} + +simdjson_inline bool number::is_double() const noexcept { + return get_number_type() == number_type::floating_point_number; +} + +simdjson_inline double number::get_double() const noexcept { + return payload.floating_point_number; +} + +simdjson_inline number::operator double() const noexcept { + return get_double(); +} + +simdjson_inline double number::as_double() const noexcept { + if(is_double()) { + return payload.floating_point_number; + } + if(is_int64()) { + return double(payload.signed_integer); + } + return double(payload.unsigned_integer); +} + +simdjson_inline void number::append_s64(int64_t value) noexcept { + payload.signed_integer = value; + type = number_type::signed_integer; +} + +simdjson_inline void number::append_u64(uint64_t value) noexcept { + payload.unsigned_integer = value; + type = number_type::unsigned_integer; +} + +simdjson_inline void number::append_double(double value) noexcept { + payload.floating_point_number = value; + type = number_type::floating_point_number; +} + +simdjson_inline void number::skip_double() noexcept { + type = number_type::floating_point_number; +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(haswell::ondemand::json_type &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H +/* end file simdjson/generic/ondemand/json_type-inl.h for haswell */ +/* including simdjson/generic/ondemand/logger-inl.h for haswell: #include "simdjson/generic/ondemand/logger-inl.h" */ +/* begin file simdjson/generic/ondemand/logger-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace haswell { +namespace ondemand { +namespace logger { + +static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +static constexpr const int LOG_EVENT_LEN = 20; +static constexpr const int LOG_BUFFER_LEN = 30; +static constexpr const int LOG_SMALL_BUFFER_LEN = 10; +static int log_depth = 0; // Not threadsafe. Log only. + +// Helper to turn unprintable or newline characters into spaces +static inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } +} + +template +static inline std::string string_format(const std::string& format, const Args&... args) +{ + SIMDJSON_PUSH_DISABLE_ALL_WARNINGS + int size_s = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; + auto size = static_cast(size_s); + if (size <= 0) return std::string(); + std::unique_ptr buf(new char[size]); + std::snprintf(buf.get(), size, format.c_str(), args...); + SIMDJSON_POP_DISABLE_WARNINGS + return std::string(buf.get(), buf.get() + size - 1); +} + +static inline log_level get_log_level_from_env() +{ + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + char *lvl = getenv("SIMDJSON_LOG_LEVEL"); + SIMDJSON_POP_DISABLE_WARNINGS + if (lvl && simdjson_strcasecmp(lvl, "ERROR") == 0) { return log_level::error; } + return log_level::info; +} + +static inline log_level log_threshold() +{ + static log_level threshold = get_log_level_from_env(); + return threshold; +} + +static inline bool should_log(log_level level) +{ + return level >= log_threshold(); +} + +inline void log_event(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} + +inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "", type, detail, log_level::info); +} +inline void log_value(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} + +inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "+", type, detail, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} +inline void log_start_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_line(iter, "+", type, "", delta, depth_delta, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} + +inline void log_end_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + if (LOG_ENABLED) { log_depth--; } + log_line(iter, "-", type, "", delta, depth_delta, log_level::info); +} + +inline void log_error(const json_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_line(iter, "ERROR: ", error, detail, delta, depth_delta, log_level::error); +} +inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail) noexcept { + log_line(iter, index, depth, "ERROR: ", error, detail, log_level::error); +} + +inline void log_event(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_event(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_value(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_value(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_start_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_start_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_end_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_end_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_error(const value_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_error(iter.json_iter(), error, detail, delta, depth_delta); +} + +inline void log_headers() noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(log_level::info))) { + // Technically a static variable is not thread-safe, but if you are using threads and logging... well... + static bool displayed_hint{false}; + log_depth = 0; + printf("\n"); + if (!displayed_hint) { + // We only print this helpful header once. + printf("# Logging provides the depth and position of the iterator user-visible steps:\n"); + printf("# +array says 'this is where we were when we discovered the start array'\n"); + printf( + "# -array says 'this is where we were when we ended the array'\n"); + printf("# skip says 'this is a structural or value I am skipping'\n"); + printf("# +/-skip says 'this is a start/end array or object I am skipping'\n"); + printf("#\n"); + printf("# The indentation of the terms (array, string,...) indicates the depth,\n"); + printf("# in addition to the depth being displayed.\n"); + printf("#\n"); + printf("# Every token in the document has a single depth determined by the tokens before it,\n"); + printf("# and is not affected by what the token actually is.\n"); + printf("#\n"); + printf("# Not all structural elements are presented as tokens in the logs.\n"); + printf("#\n"); + printf("# We never give control to the user within an empty array or an empty object.\n"); + printf("#\n"); + printf("# Inside an array, having a depth greater than the array's depth means that\n"); + printf("# we are pointing inside a value.\n"); + printf("# Having a depth equal to the array means that we are pointing right before a value.\n"); + printf("# Having a depth smaller than the array means that we have moved beyond the array.\n"); + displayed_hint = true; + } + printf("\n"); + printf("| %-*s ", LOG_EVENT_LEN, "Event"); + printf("| %-*s ", LOG_BUFFER_LEN, "Buffer"); + printf("| %-*s ", LOG_SMALL_BUFFER_LEN, "Next"); + // printf("| %-*s ", 5, "Next#"); + printf("| %-*s ", 5, "Depth"); + printf("| Detail "); + printf("|\n"); + + printf("|%.*s", LOG_EVENT_LEN + 2, DASHES); + printf("|%.*s", LOG_BUFFER_LEN + 2, DASHES); + printf("|%.*s", LOG_SMALL_BUFFER_LEN + 2, DASHES); + // printf("|%.*s", 5+2, DASHES); + printf("|%.*s", 5 + 2, DASHES); + printf("|--------"); + printf("|\n"); + fflush(stdout); + } + } +} + +template +inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, log_level level, Args&&... args) noexcept { + log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail, level, std::forward(args)...); +} + +template +inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, log_level level, Args&&... args) noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(level))) { + const int indent = depth * 2; + const auto buf = iter.token.buf; + auto msg = string_format(title, std::forward(args)...); + printf("| %*s%s%-*s ", indent, "", title_prefix, + LOG_EVENT_LEN - indent - int(strlen(title_prefix)), msg.c_str()); + { + // Print the current structural. + printf("| "); + // Before we begin, the index might point right before the document. + // This could be unsafe, see https://github.com/simdjson/simdjson/discussions/1938 + if (index < iter._root) { + printf("%*s", LOG_BUFFER_LEN, ""); + } else { + auto current_structural = &buf[*index]; + for (int i = 0; i < LOG_BUFFER_LEN; i++) { + printf("%c", printable_char(current_structural[i])); + } + } + printf(" "); + } + { + // Print the next structural. + printf("| "); + auto next_structural = &buf[*(index + 1)]; + for (int i = 0; i < LOG_SMALL_BUFFER_LEN; i++) { + printf("%c", printable_char(next_structural[i])); + } + printf(" "); + } + // printf("| %5u ", *(index+1)); + printf("| %5i ", depth); + printf("| %6.*s ", int(detail.size()), detail.data()); + printf("|\n"); + fflush(stdout); + } + } +} + +} // namespace logger +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H +/* end file simdjson/generic/ondemand/logger-inl.h for haswell */ +/* including simdjson/generic/ondemand/object-inl.h for haswell: #include "simdjson/generic/ondemand/object-inl.h" */ +/* begin file simdjson/generic/ondemand/object-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) & noexcept { + return find_field_unordered(key); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) && noexcept { + return std::forward(*this).find_field_unordered(key); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} + +simdjson_inline simdjson_result object::start(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_object().error() ); + return object(iter); +} +simdjson_inline simdjson_result object::start_root(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_root_object().error() ); + return object(iter); +} +simdjson_inline error_code object::consume() noexcept { + if(iter.is_at_key()) { + /** + * whenever you are pointing at a key, calling skip_child() is + * unsafe because you will hit a string and you will assume that + * it is string value, and this mistake will lead you to make bad + * depth computation. + */ + /** + * We want to 'consume' the key. We could really + * just do _json_iter->return_current_and_advance(); at this + * point, but, for clarity, we will use the high-level API to + * eat the key. We assume that the compiler optimizes away + * most of the work. + */ + simdjson_unused raw_json_string actual_key; + auto error = iter.field_key().get(actual_key); + if (error) { iter.abandon(); return error; }; + // Let us move to the value while we are at it. + if ((error = iter.field_value())) { iter.abandon(); return error; } + } + auto error_skip = iter.json_iter().skip_child(iter.depth()-1); + if(error_skip) { iter.abandon(); } + return error_skip; +} + +simdjson_inline simdjson_result object::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + const uint8_t * final_point{iter._json_iter->peek()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result object::started(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.started_object().error() ); + return object(iter); +} + +simdjson_inline object object::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline object::object(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result object::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return object_iterator(iter); +} +simdjson_inline simdjson_result object::end() noexcept { + return object_iterator(iter); +} + +inline simdjson_result object::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; + + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); + } + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = find_field(unescaped); // Take note find_field does not unescape keys when matching + } else { + child = find_field(key); + } + if(child.error()) { + return child; // we do not continue if there was an error + } + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); + } + return child; +} + +simdjson_inline simdjson_result object::count_fields() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the object after counting the number of elements. + iter.reset_object(); + return count; +} + +simdjson_inline simdjson_result object::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_object().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +simdjson_inline simdjson_result object::reset() & noexcept { + return iter.reset_object(); +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(haswell::ondemand::object &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first)[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +inline simdjson_result simdjson_result::reset() noexcept { + if (error()) { return error(); } + return first.reset(); +} + +inline simdjson_result simdjson_result::is_empty() noexcept { + if (error()) { return error(); } + return first.is_empty(); +} + +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H +/* end file simdjson/generic/ondemand/object-inl.h for haswell */ +/* including simdjson/generic/ondemand/object_iterator-inl.h for haswell: #include "simdjson/generic/ondemand/object_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/object_iterator-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +// +// object_iterator +// + +simdjson_inline object_iterator::object_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result object_iterator::operator*() noexcept { + error_code error = iter.error(); + if (error) { iter.abandon(); return error; } + auto result = field::start(iter); + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (result.error()) { iter.abandon(); } + return result; +} +simdjson_inline bool object_iterator::operator==(const object_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool object_iterator::operator!=(const object_iterator &) const noexcept { + return iter.is_open(); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline object_iterator &object_iterator::operator++() noexcept { + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (!iter.is_open()) { return *this; } // Iterator will be released if there is an error + + simdjson_unused error_code error; + if ((error = iter.skip_child() )) { return *this; } + + simdjson_unused bool has_value; + if ((error = iter.has_next_field().get(has_value) )) { return *this; }; + return *this; +} +SIMDJSON_POP_DISABLE_WARNINGS + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter.depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the object is first found and the iterator is just past the {. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the , or } before the next value. In this state, +// depth == iter.depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter.depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter.depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the object iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet field may be missing or not be an +// object--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter.depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between fields, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter.depth == depth, and at_start == false. +// +// Errors that occur while reading a field to give to the user (such as when the key is not a +// string or the field is missing a colon) are yielded immediately. Depth is then decremented, +// moving to the Finished state without transitioning through an Error state at all. +// +// ## Terminal State +// +// The terminal state has iter.depth < depth. at_start is always false. +// +// - Finished: When we have reached a }, we are finished. We signal this by decrementing depth. +// In this state, iter.depth < depth, at_start == false, and error == SUCCESS. +// + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + haswell::ondemand::object_iterator &&value +) noexcept + : implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +// Checks for ']' and ',' +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++first; + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/object_iterator-inl.h for haswell */ +/* including simdjson/generic/ondemand/parser-inl.h for haswell: #include "simdjson/generic/ondemand/parser-inl.h" */ +/* begin file simdjson/generic/ondemand/parser-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string_view.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/dom/base.h" // for MINIMAL_DOCUMENT_CAPACITY */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity} { +} + +simdjson_warn_unused simdjson_inline error_code parser::allocate(size_t new_capacity, size_t new_max_depth) noexcept { + if (new_capacity > max_capacity()) { return CAPACITY; } + if (string_buf && new_capacity == capacity() && new_max_depth == max_depth()) { return SUCCESS; } + + // string_capacity copied from document::allocate + _capacity = 0; + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset(new (std::nothrow) uint8_t[string_capacity]); +#if SIMDJSON_DEVELOPMENT_CHECKS + start_positions.reset(new (std::nothrow) token_position[new_max_depth]); +#endif + if (implementation) { + SIMDJSON_TRY( implementation->set_capacity(new_capacity) ); + SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) ); + } else { + SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) ); + } + _capacity = new_capacity; + _max_depth = new_max_depth; + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length() || !string_buf) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return document::start({ reinterpret_cast(json.data()), this }); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const char *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const uint8_t *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(std::string_view json, size_t allocated) & noexcept { + return iterate(padded_string_view(json, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const std::string &json) & noexcept { + return iterate(padded_string_view(json)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + padded_string_view json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + const padded_string &json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate_raw(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length()) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return json_iterator(reinterpret_cast(json.data()), this); +} + +inline simdjson_result parser::iterate_many(const uint8_t *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + if(allow_comma_separated && batch_size < len) { batch_size = len; } + return document_stream(*this, buf, len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const char *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(reinterpret_cast(buf), len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const std::string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const padded_string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} + +simdjson_inline size_t parser::capacity() const noexcept { + return _capacity; +} +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; +} +simdjson_inline size_t parser::max_depth() const noexcept { + return _max_depth; +} + +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity < dom::MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = dom::MINIMAL_DOCUMENT_CAPACITY; + } +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement) const noexcept { + uint8_t *end = implementation->parse_string(in.buf, dst, allow_replacement); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept { + uint8_t *end = implementation->parse_wobbly_string(in.buf, dst); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(haswell::ondemand::parser &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H +/* end file simdjson/generic/ondemand/parser-inl.h for haswell */ +/* including simdjson/generic/ondemand/raw_json_string-inl.h for haswell: #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +namespace haswell { +namespace ondemand { + +simdjson_inline raw_json_string::raw_json_string(const uint8_t * _buf) noexcept : buf{_buf} {} + +simdjson_inline const char * raw_json_string::raw() const noexcept { return reinterpret_cast(buf); } + + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(std::string_view target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;pos < target.size() && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;pos < target.size();pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(const char* target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;target[pos] && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;target[pos];pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept { + // If we are going to call memcmp, then we must know something about the length of the raw_json_string. + return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); +} + +simdjson_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + if(target.size() <= SIMDJSON_PADDING) { + return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); + } + const char * r{raw()}; + size_t pos{0}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(std::string_view target) const noexcept { + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(const char * target) const noexcept { + // Assumptions: 'target' does not contain unescaped quote characters, is null terminated and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(const char* target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept { + return a.unsafe_is_equal(c); +} + +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept { + return a == c; +} + +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept { + return !(a == c); +} + +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept { + return !(a == c); +} + + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape(json_iterator &iter, bool allow_replacement) const noexcept { + return iter.unescape(*this, allow_replacement); +} + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape_wobbly(json_iterator &iter) const noexcept { + return iter.unescape_wobbly(*this); +} + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &out, const raw_json_string &str) noexcept { + bool in_escape = false; + const char *s = str.raw(); + while (true) { + switch (*s) { + case '\\': in_escape = !in_escape; break; + case '"': if (in_escape) { in_escape = false; } else { return out; } break; + default: if (in_escape) { in_escape = false; } + } + out << *s; + s++; + } +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(haswell::ondemand::raw_json_string &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::raw() const noexcept { + if (error()) { return error(); } + return first.raw(); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape(haswell::ondemand::json_iterator &iter, bool allow_replacement) const noexcept { + if (error()) { return error(); } + return first.unescape(iter, allow_replacement); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape_wobbly(haswell::ondemand::json_iterator &iter) const noexcept { + if (error()) { return error(); } + return first.unescape_wobbly(iter); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H +/* end file simdjson/generic/ondemand/raw_json_string-inl.h for haswell */ +/* including simdjson/generic/ondemand/serialization-inl.h for haswell: #include "simdjson/generic/ondemand/serialization-inl.h" */ +/* begin file simdjson/generic/ondemand/serialization-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/serialization.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +inline std::string_view trim(const std::string_view str) noexcept { + // We can almost surely do better by rolling our own find_first_not_of function. + size_t first = str.find_first_not_of(" \t\n\r"); + // If we have the empty string (just white space), then no trimming is possible, and + // we return the empty string_view. + if (std::string_view::npos == first) { return std::string_view(); } + size_t last = str.find_last_not_of(" \t\n\r"); + return str.substr(first, (last - first + 1)); +} + + +inline simdjson_result to_json_string(haswell::ondemand::document& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(haswell::ondemand::document_reference& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(haswell::ondemand::value& x) noexcept { + /** + * If we somehow receive a value that has already been consumed, + * then the following code could be in trouble. E.g., we create + * an array as needed, but if an array was already created, then + * it could be bad. + */ + using namespace haswell::ondemand; + haswell::ondemand::json_type t; + auto error = x.type().get(t); + if(error != SUCCESS) { return error; } + switch (t) + { + case json_type::array: + { + haswell::ondemand::array array; + error = x.get_array().get(array); + if(error) { return error; } + return to_json_string(array); + } + case json_type::object: + { + haswell::ondemand::object object; + error = x.get_object().get(object); + if(error) { return error; } + return to_json_string(object); + } + default: + return trim(x.raw_json_token()); + } +} + +inline simdjson_result to_json_string(haswell::ondemand::object& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(haswell::ondemand::array& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} +} // namespace simdjson + +namespace simdjson { namespace haswell { namespace ondemand { + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::document_reference& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::haswell::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif +}}} // namespace simdjson::haswell::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H +/* end file simdjson/generic/ondemand/serialization-inl.h for haswell */ +/* including simdjson/generic/ondemand/token_iterator-inl.h for haswell: #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/token_iterator-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline token_iterator::token_iterator( + const uint8_t *_buf, + token_position position +) noexcept : buf{_buf}, _position{position} +{ +} + +simdjson_inline uint32_t token_iterator::current_offset() const noexcept { + return *(_position); +} + + +simdjson_inline const uint8_t *token_iterator::return_current_and_advance() noexcept { + return &buf[*(_position++)]; +} + +simdjson_inline const uint8_t *token_iterator::peek(token_position position) const noexcept { + return &buf[*position]; +} +simdjson_inline uint32_t token_iterator::peek_index(token_position position) const noexcept { + return *position; +} +simdjson_inline uint32_t token_iterator::peek_length(token_position position) const noexcept { + return *(position+1) - *position; +} + +simdjson_inline const uint8_t *token_iterator::peek(int32_t delta) const noexcept { + return &buf[*(_position+delta)]; +} +simdjson_inline uint32_t token_iterator::peek_index(int32_t delta) const noexcept { + return *(_position+delta); +} +simdjson_inline uint32_t token_iterator::peek_length(int32_t delta) const noexcept { + return *(_position+delta+1) - *(_position+delta); +} + +simdjson_inline token_position token_iterator::position() const noexcept { + return _position; +} +simdjson_inline void token_iterator::set_position(token_position target_position) noexcept { + _position = target_position; +} + +simdjson_inline bool token_iterator::operator==(const token_iterator &other) const noexcept { + return _position == other._position; +} +simdjson_inline bool token_iterator::operator!=(const token_iterator &other) const noexcept { + return _position != other._position; +} +simdjson_inline bool token_iterator::operator>(const token_iterator &other) const noexcept { + return _position > other._position; +} +simdjson_inline bool token_iterator::operator>=(const token_iterator &other) const noexcept { + return _position >= other._position; +} +simdjson_inline bool token_iterator::operator<(const token_iterator &other) const noexcept { + return _position < other._position; +} +simdjson_inline bool token_iterator::operator<=(const token_iterator &other) const noexcept { + return _position <= other._position; +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(haswell::ondemand::token_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/token_iterator-inl.h for haswell */ +/* including simdjson/generic/ondemand/value-inl.h for haswell: #include "simdjson/generic/ondemand/value-inl.h" */ +/* begin file simdjson/generic/ondemand/value-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline value::value(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} +simdjson_inline value value::start(const value_iterator &iter) noexcept { + return iter; +} +simdjson_inline value value::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline simdjson_result value::get_array() noexcept { + return array::start(iter); +} +simdjson_inline simdjson_result value::get_object() noexcept { + return object::start(iter); +} +simdjson_inline simdjson_result value::start_or_resume_object() noexcept { + if (iter.at_start()) { + return get_object(); + } else { + return object::resume(iter); + } +} + +simdjson_inline simdjson_result value::get_raw_json_string() noexcept { + return iter.get_raw_json_string(); +} +simdjson_inline simdjson_result value::get_string(bool allow_replacement) noexcept { + return iter.get_string(allow_replacement); +} +simdjson_inline simdjson_result value::get_wobbly_string() noexcept { + return iter.get_wobbly_string(); +} +simdjson_inline simdjson_result value::get_double() noexcept { + return iter.get_double(); +} +simdjson_inline simdjson_result value::get_double_in_string() noexcept { + return iter.get_double_in_string(); +} +simdjson_inline simdjson_result value::get_uint64() noexcept { + return iter.get_uint64(); +} +simdjson_inline simdjson_result value::get_uint64_in_string() noexcept { + return iter.get_uint64_in_string(); +} +simdjson_inline simdjson_result value::get_int64() noexcept { + return iter.get_int64(); +} +simdjson_inline simdjson_result value::get_int64_in_string() noexcept { + return iter.get_int64_in_string(); +} +simdjson_inline simdjson_result value::get_bool() noexcept { + return iter.get_bool(); +} +simdjson_inline simdjson_result value::is_null() noexcept { + return iter.is_null(); +} +template<> simdjson_inline simdjson_result value::get() noexcept { return get_array(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_object(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_number(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_double(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_bool(); } + +template simdjson_inline error_code value::get(T &out) noexcept { + return get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline value::operator array() noexcept(false) { + return get_array(); +} +simdjson_inline value::operator object() noexcept(false) { + return get_object(); +} +simdjson_inline value::operator uint64_t() noexcept(false) { + return get_uint64(); +} +simdjson_inline value::operator int64_t() noexcept(false) { + return get_int64(); +} +simdjson_inline value::operator double() noexcept(false) { + return get_double(); +} +simdjson_inline value::operator std::string_view() noexcept(false) { + return get_string(false); +} +simdjson_inline value::operator raw_json_string() noexcept(false) { + return get_raw_json_string(); +} +simdjson_inline value::operator bool() noexcept(false) { + return get_bool(); +} +#endif + +simdjson_inline simdjson_result value::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result value::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result value::count_elements() & noexcept { + simdjson_result answer; + auto a = get_array(); + answer = a.count_elements(); + // count_elements leaves you pointing inside the array, at the first element. + // We need to move back so that the user can create a new array (which requires that + // we point at '['). + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::count_fields() & noexcept { + simdjson_result answer; + auto a = get_object(); + answer = a.count_fields(); + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::at(size_t index) noexcept { + auto a = get_array(); + return a.at(index); +} + +simdjson_inline simdjson_result value::find_field(std::string_view key) noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result value::find_field(const char *key) noexcept { + return start_or_resume_object().find_field(key); +} + +simdjson_inline simdjson_result value::find_field_unordered(std::string_view key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result value::find_field_unordered(const char *key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} + +simdjson_inline simdjson_result value::operator[](std::string_view key) noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result value::operator[](const char *key) noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline simdjson_result value::type() noexcept { + return iter.type(); +} + +simdjson_inline simdjson_result value::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool value::is_negative() noexcept { + return iter.is_negative(); +} + +simdjson_inline simdjson_result value::is_integer() noexcept { + return iter.is_integer(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number_type() noexcept { + return iter.get_number_type(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number() noexcept { + return iter.get_number(); +} + +simdjson_inline std::string_view value::raw_json_token() noexcept { + return std::string_view(reinterpret_cast(iter.peek_start()), iter.peek_start_length()); +} + +simdjson_inline simdjson_result value::current_location() noexcept { + return iter.json_iter().current_location(); +} + +simdjson_inline int32_t value::current_depth() const noexcept{ + return iter.json_iter().depth(); +} + +simdjson_inline simdjson_result value::at_pointer(std::string_view json_pointer) noexcept { + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + haswell::ondemand::value &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + if (error()) { return error(); } + return {}; +} + +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} + +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) noexcept { + if (error()) { return error(); } + return first[key]; +} + +simdjson_inline simdjson_result simdjson_result::get_array() noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return first.get(); +} +template simdjson_inline error_code simdjson_result::get(T &out) noexcept { + if (error()) { return error(); } + return first.get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return std::move(first); +} +template<> simdjson_inline error_code simdjson_result::get(haswell::ondemand::value &out) noexcept { + if (error()) { return error(); } + out = first; + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator haswell::ondemand::array() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator haswell::ondemand::object() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator haswell::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H +/* end file simdjson/generic/ondemand/value-inl.h for haswell */ +/* including simdjson/generic/ondemand/value_iterator-inl.h for haswell: #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/value_iterator-inl.h for haswell */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/atomparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace haswell { +namespace ondemand { + +simdjson_inline value_iterator::value_iterator( + json_iterator *json_iter, + depth_t depth, + token_position start_position +) noexcept : _json_iter{json_iter}, _depth{depth}, _start_position{start_position} +{ +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_root_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_object() noexcept { + assert_at_container_start(); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + if (*_json_iter->peek() == '}') { + logger::log_value(*_json_iter, "empty object"); + _json_iter->return_current_and_advance(); + end_container(); + return false; + } + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_object() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // object: e.g., `{"a":2} foo }`. Users concerned with garbage content should + // call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != '}') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing } at end"); + } + // If the last character is } *and* the first gibberish character is also '}' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == '}') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed object. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_object() noexcept { + auto error = check_root_object(); + if(error) { return error; } + return started_object(); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::end_container() noexcept { +#if SIMDJSON_CHECK_EOF + if (depth() > 1 && at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing parent ] or }"); } + // if (depth() <= 1 && !at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + _json_iter->ascend_to(depth()-1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_field() noexcept { + assert_at_next(); + + // It's illegal to call this unless there are more tokens: anything that ends in } or ] is + // obligated to verify there are more tokens if they are not the top level. + switch (*_json_iter->return_current_and_advance()) { + case '}': + logger::log_end_value(*_json_iter, "object"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between object fields"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_raw(const std::string_view key) noexcept { + error_code error; + bool has_value; + // + // Initially, the object can be in one of a few different places: + // + // 1. The start of the object, at the first field: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + if (at_first_field()) { + has_value = true; + + // + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + return false; + + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + if ((error = skip_child() )) { abandon(); return error; } + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + while (has_value) { + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + //if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); // Skip the value entirely + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + + // If the loop ended, we're out of fields to look at. + return false; +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_unordered_raw(const std::string_view key) noexcept { + /** + * When find_field_unordered_raw is called, we can either be pointing at the + * first key, pointing outside (at the closing brace) or if a key was matched + * we can be either pointing right afterthe ':' right before the value (that we need skip), + * or we may have consumed the value and we might be at a comma or at the + * final brace (ready for a call to has_next_field()). + */ + error_code error; + bool has_value; + + // First, we scan from that point to the end. + // If we don't find a match, we may loop back around, and scan from the beginning to that point. + token_position search_start = _json_iter->position(); + + // We want to know whether we need to go back to the beginning. + bool at_first = at_first_field(); + /////////////// + // Initially, the object can be in one of a few different places: + // + // 1. At the first key: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + // + if (at_first) { + has_value = true; + + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { + +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + SIMDJSON_TRY(reset_object().get(has_value)); + at_first = true; + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + // If someone queried a key but they not did access the value, then we are left pointing + // at the ':' and we need to move forward through the value... If the value was + // processed then skip_child() does not move the iterator (but may adjust the depth). + if ((error = skip_child() )) { abandon(); return error; } + search_start = _json_iter->position(); + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + + // After initial processing, we will be in one of two states: + // + // ``` + // // At the beginning of a field + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // At the end of the object + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // ``` + // + // Next, we find a match starting from the current position. + while (has_value) { + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + // Performance note: it maybe wasteful to rewind to the beginning when there might be + // no other query following. Indeed, it would require reskipping the whole object. + // Instead, you can just stay where you are. If there is a new query, there is always time + // to rewind. + if(at_first) { return false; } + + // If we reach the end without finding a match, search the rest of the fields starting at the + // beginning of the object. + // (We have already run through the object before, so we've already validated its structure. We + // don't check errors in this bit.) + SIMDJSON_TRY(reset_object().get(has_value)); + while (true) { + SIMDJSON_ASSUME(has_value); // we should reach search_start before ever reaching the end of the object + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + error = field_key().get(actual_key); SIMDJSON_ASSUME(!error); + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + error = field_value(); SIMDJSON_ASSUME(!error); + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // If we reached the end of the key-value pair we started from, then we know + // that the key is not there so we return false. We are either right before + // the next comma or the final brace. + if(_json_iter->position() == search_start) { return false; } + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + error = has_next_field().get(has_value); SIMDJSON_ASSUME(!error); + // If we make the mistake of exiting here, then we could be left pointing at a key + // in the middle of an object. That's not an allowable state. + } + // If the loop ended, we're out of fields to look at. The program should + // never reach this point. + return false; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::field_key() noexcept { + assert_at_next(); + + const uint8_t *key = _json_iter->return_current_and_advance(); + if (*(key++) != '"') { return report_error(TAPE_ERROR, "Object key is not a string"); } + return raw_json_string(key); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::field_value() noexcept { + assert_at_next(); + + if (*_json_iter->return_current_and_advance() != ':') { return report_error(TAPE_ERROR, "Missing colon in object field"); } + _json_iter->descend_to(depth()+1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_root_array(); +} + +inline std::string value_iterator::to_string() const noexcept { + auto answer = std::string("value_iterator [ depth : ") + std::to_string(_depth) + std::string(", "); + if(_json_iter != nullptr) { answer += _json_iter->to_string(); } + answer += std::string(" ]"); + return answer; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_array() noexcept { + assert_at_container_start(); + if (*_json_iter->peek() == ']') { + logger::log_value(*_json_iter, "empty array"); + _json_iter->return_current_and_advance(); + SIMDJSON_TRY( end_container() ); + return false; + } + _json_iter->descend_to(depth()+1); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_array() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // array: e.g., `[1, 2] foo]`. Users concerned with garbage content should + // also call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != ']') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing ] at end"); + } + // If the last character is ] *and* the first gibberish character is also ']' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == ']') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed array. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_array() noexcept { + auto error = check_root_array(); + if (error) { return error; } + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_element() noexcept { + assert_at_next(); + + logger::log_event(*this, "has_next_element"); + switch (*_json_iter->return_current_and_advance()) { + case ']': + logger::log_end_value(*_json_iter, "array"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + _json_iter->descend_to(depth()+1); + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between array elements"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_bool(const uint8_t *json) const noexcept { + auto not_true = atomparsing::str4ncmp(json, "true"); + auto not_false = atomparsing::str4ncmp(json, "fals") | (json[4] ^ 'e'); + bool error = (not_true && not_false) || jsoncharutils::is_not_structural_or_whitespace(json[not_true ? 5 : 4]); + if (error) { return incorrect_type_error("Not a boolean"); } + return simdjson_result(!not_true); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_null(const uint8_t *json) const noexcept { + bool is_null_string = !atomparsing::str4ncmp(json, "null") && jsoncharutils::is_structural_or_whitespace(json[4]); + // if we start with 'n', we must be a null + if(!is_null_string && json[0]=='n') { return incorrect_type_error("Not a null but starts with n"); } + return is_null_string; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_string(bool allow_replacement) noexcept { + return get_raw_json_string().unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_wobbly_string() noexcept { + return get_raw_json_string().unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_raw_json_string() noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64() noexcept { + auto result = numberparsing::parse_unsigned(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64_in_string() noexcept { + auto result = numberparsing::parse_unsigned_in_string(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64() noexcept { + auto result = numberparsing::parse_integer(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64_in_string() noexcept { + auto result = numberparsing::parse_integer_in_string(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double() noexcept { + auto result = numberparsing::parse_double(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double_in_string() noexcept { + auto result = numberparsing::parse_double_in_string(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_bool() noexcept { + auto result = parse_bool(peek_non_root_scalar("bool")); + if(result.error() == SUCCESS) { advance_non_root_scalar("bool"); } + return result; +} +simdjson_inline simdjson_result value_iterator::is_null() noexcept { + bool is_null_value; + SIMDJSON_TRY(parse_null(peek_non_root_scalar("null")).get(is_null_value)); + if(is_null_value) { advance_non_root_scalar("null"); } + return is_null_value; +} +simdjson_inline bool value_iterator::is_negative() noexcept { + return numberparsing::is_negative(peek_non_root_scalar("numbersign")); +} +simdjson_inline bool value_iterator::is_root_negative() noexcept { + return numberparsing::is_negative(peek_root_scalar("numbersign")); +} +simdjson_inline simdjson_result value_iterator::is_integer() noexcept { + return numberparsing::is_integer(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number_type() noexcept { + return numberparsing::get_number_type(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number() noexcept { + number num; + error_code error = numberparsing::parse_number(peek_non_root_scalar("number"), num); + if(error) { return error; } + return num; +} + +simdjson_inline simdjson_result value_iterator::is_root_integer(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("is_root_integer"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + return false; // if there are more than 20 characters, it cannot be represented as an integer. + } + auto answer = numberparsing::is_integer(tmpbuf); + // If the parsing was a success, we must still check that it is + // a single scalar. Note that we parse first because of cases like '[]' where + // getting TRAILING_CONTENT is wrong. + if(check_trailing && (answer.error() == SUCCESS) && (!_json_iter->is_single_token())) { return TRAILING_CONTENT; } + return answer; +} + +simdjson_inline simdjson_result value_iterator::get_root_number_type(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto answer = numberparsing::get_number_type(tmpbuf); + if (check_trailing && (answer.error() == SUCCESS) && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + return answer; +} +simdjson_inline simdjson_result value_iterator::get_root_number(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + number num; + error_code error = numberparsing::parse_number(tmpbuf, num); + if(error) { return error; } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("number"); + return num; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_string(bool check_trailing, bool allow_replacement) noexcept { + return get_root_raw_json_string(check_trailing).unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_wobbly_string(bool check_trailing) noexcept { + return get_root_raw_json_string(check_trailing).unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_raw_json_string(bool check_trailing) noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_bool(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("bool"); + uint8_t tmpbuf[5+1+1]; // +1 for null termination + tmpbuf[5+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 5+1)) { return incorrect_type_error("Not a boolean"); } + auto result = parse_bool(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("bool"); + } + return result; +} +simdjson_inline simdjson_result value_iterator::is_root_null(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("null"); + bool result = (max_len >= 4 && !atomparsing::str4ncmp(json, "null") && + (max_len == 4 || jsoncharutils::is_structural_or_whitespace(json[4]))); + if(result) { // we have something that looks like a null. + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("null"); + } + return result; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::skip_child() noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth >= _depth ); + + return _json_iter->skip_child(depth()); +} + +simdjson_inline value_iterator value_iterator::child() const noexcept { + assert_at_child(); + return { _json_iter, depth()+1, _json_iter->token.position() }; +} + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and iterator depth, which is a desired effect. It does not happen if is_open is +// marked non-inline. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline bool value_iterator::is_open() const noexcept { + return _json_iter->depth() >= depth(); +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool value_iterator::at_end() const noexcept { + return _json_iter->at_end(); +} + +simdjson_inline bool value_iterator::at_start() const noexcept { + return _json_iter->token.position() == start_position(); +} + +simdjson_inline bool value_iterator::at_first_field() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + return _json_iter->token.position() == start_position() + 1; +} + +simdjson_inline void value_iterator::abandon() noexcept { + _json_iter->abandon(); +} + +simdjson_warn_unused simdjson_inline depth_t value_iterator::depth() const noexcept { + return _depth; +} +simdjson_warn_unused simdjson_inline error_code value_iterator::error() const noexcept { + return _json_iter->error; +} +simdjson_warn_unused simdjson_inline uint8_t *&value_iterator::string_buf_loc() noexcept { + return _json_iter->string_buf_loc(); +} +simdjson_warn_unused simdjson_inline const json_iterator &value_iterator::json_iter() const noexcept { + return *_json_iter; +} +simdjson_warn_unused simdjson_inline json_iterator &value_iterator::json_iter() noexcept { + return *_json_iter; +} + +simdjson_inline const uint8_t *value_iterator::peek_start() const noexcept { + return _json_iter->peek(start_position()); +} +simdjson_inline uint32_t value_iterator::peek_start_length() const noexcept { + return _json_iter->peek_length(start_position()); +} + +simdjson_inline const uint8_t *value_iterator::peek_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return peek_start(); } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return; } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept { + logger::log_start_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + const uint8_t *json; + if (!is_at_start()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + json = peek_start(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + } else { + assert_at_start(); + /** + * We should be prudent. Let us peek. If it is not the right type, we + * return an error. Only once we have determined that we have the right + * type are we allowed to advance! + */ + json = _json_iter->peek(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + _json_iter->return_current_and_advance(); + } + + + return SUCCESS; +} + + +simdjson_inline const uint8_t *value_iterator::peek_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_root(); + return _json_iter->peek(); +} +simdjson_inline const uint8_t *value_iterator::peek_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_non_root_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_root(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} +simdjson_inline void value_iterator::advance_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_non_root_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::incorrect_type_error(const char *message) const noexcept { + logger::log_error(*_json_iter, start_position(), depth(), message); + return INCORRECT_TYPE; +} + +simdjson_inline bool value_iterator::is_at_start() const noexcept { + return position() == start_position(); +} + +simdjson_inline bool value_iterator::is_at_key() const noexcept { + // Keys are at the same depth as the object. + // Note here that we could be safer and check that we are within an object, + // but we do not. + return _depth == _json_iter->_depth && *_json_iter->peek() == '"'; +} + +simdjson_inline bool value_iterator::is_at_iterator_start() const noexcept { + // We can legitimately be either at the first value ([1]), or after the array if it's empty ([]). + auto delta = position() - start_position(); + return delta == 1 || delta == 2; +} + +inline void value_iterator::assert_at_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_container_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position + 1 ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_next() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +simdjson_inline void value_iterator::move_at_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position); +} + +simdjson_inline void value_iterator::move_at_container_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position + 1); +} + +simdjson_inline simdjson_result value_iterator::reset_array() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_array(); +} + +simdjson_inline simdjson_result value_iterator::reset_object() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_object(); +} + +inline void value_iterator::assert_at_child() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth + 1 ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_root() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth == 1 ); +} + +inline void value_iterator::assert_at_non_root_start() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth > 1 ); +} + +inline void value_iterator::assert_is_valid() const noexcept { + SIMDJSON_ASSUME( _json_iter != nullptr ); +} + +simdjson_inline bool value_iterator::is_valid() const noexcept { + return _json_iter != nullptr; +} + +simdjson_inline simdjson_result value_iterator::type() const noexcept { + switch (*peek_start()) { + case '{': + return json_type::object; + case '[': + return json_type::array; + case '"': + return json_type::string; + case 'n': + return json_type::null; + case 't': case 'f': + return json_type::boolean; + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return json_type::number; + default: + return TAPE_ERROR; + } +} + +simdjson_inline token_position value_iterator::start_position() const noexcept { + return _start_position; +} + +simdjson_inline token_position value_iterator::position() const noexcept { + return _json_iter->position(); +} + +simdjson_inline token_position value_iterator::end_position() const noexcept { + return _json_iter->end_position(); +} + +simdjson_inline token_position value_iterator::last_position() const noexcept { + return _json_iter->last_position(); +} + +simdjson_inline error_code value_iterator::report_error(error_code error, const char *message) noexcept { + return _json_iter->report_error(error, message); +} + +} // namespace ondemand +} // namespace haswell +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(haswell::ondemand::value_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/value_iterator-inl.h for haswell */ +/* end file simdjson/generic/ondemand/amalgamated.h for haswell */ +/* including simdjson/haswell/end.h: #include "simdjson/haswell/end.h" */ +/* begin file simdjson/haswell/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/haswell/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "haswell" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/haswell/end.h */ + +#endif // SIMDJSON_HASWELL_ONDEMAND_H +/* end file simdjson/haswell/ondemand.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(icelake) +/* including simdjson/icelake/ondemand.h: #include "simdjson/icelake/ondemand.h" */ +/* begin file simdjson/icelake/ondemand.h */ +#ifndef SIMDJSON_ICELAKE_ONDEMAND_H +#define SIMDJSON_ICELAKE_ONDEMAND_H + +/* including simdjson/icelake/begin.h: #include "simdjson/icelake/begin.h" */ +/* begin file simdjson/icelake/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "icelake" */ +#define SIMDJSON_IMPLEMENTATION icelake +/* including simdjson/icelake/base.h: #include "simdjson/icelake/base.h" */ +/* begin file simdjson/icelake/base.h */ +#ifndef SIMDJSON_ICELAKE_BASE_H +#define SIMDJSON_ICELAKE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_ICELAKE +namespace simdjson { +/** + * Implementation for Icelake (Intel AVX512). + */ +namespace icelake { + +class implementation; + +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_BASE_H +/* end file simdjson/icelake/base.h */ +/* including simdjson/icelake/intrinsics.h: #include "simdjson/icelake/intrinsics.h" */ +/* begin file simdjson/icelake/intrinsics.h */ +#ifndef SIMDJSON_ICELAKE_INTRINSICS_H +#define SIMDJSON_ICELAKE_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO + +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + * e.g., if __AVX2__ is set... in turn, we normally set these + * macros by compiling against the corresponding architecture + * (e.g., arch:AVX2, -mavx2, etc.) which compiles the whole + * software with these advanced instructions. In simdjson, we + * want to compile the whole program for a generic target, + * and only target our specific kernels. As a workaround, + * we directly include the needed headers. These headers would + * normally guard against such usage, but we carefully included + * (or ) before, so the headers + * are fooled. + */ +#include // for _blsr_u64 +#include // for __lzcnt64 +#include // for most things (AVX2, AVX512, _popcnt64) +#include +#include +#include +#include +#include // for _mm_clmulepi64_si128 +// Important: we need the AVX-512 headers: +#include +#include +#include +#include +#include +#include +#include +// unfortunately, we may not get _blsr_u64, but, thankfully, clang +// has it as a macro. +#ifndef _blsr_u64 +// we roll our own +#define _blsr_u64(n) ((n - 1) & n) +#endif // _blsr_u64 +#endif // SIMDJSON_CLANG_VISUAL_STUDIO + +static_assert(sizeof(__m512i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for icelake"); + +#endif // SIMDJSON_ICELAKE_INTRINSICS_H +/* end file simdjson/icelake/intrinsics.h */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +SIMDJSON_TARGET_REGION("avx512f,avx512dq,avx512cd,avx512bw,avx512vbmi,avx512vbmi2,avx512vl,avx2,bmi,pclmul,lzcnt,popcnt") +#endif + +/* including simdjson/icelake/bitmanipulation.h: #include "simdjson/icelake/bitmanipulation.h" */ +/* begin file simdjson/icelake/bitmanipulation.h */ +#ifndef SIMDJSON_ICELAKE_BITMANIPULATION_H +#define SIMDJSON_ICELAKE_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return (int)_tzcnt_u64(input_num); +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + //////// + // You might expect the next line to be equivalent to + // return (int)_tzcnt_u64(input_num); + // but the generated code differs and might be less efficient? + //////// + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return _blsr_u64(input_num); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { + return int(_lzcnt_u64(input_num)); +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_BITMANIPULATION_H +/* end file simdjson/icelake/bitmanipulation.h */ +/* including simdjson/icelake/bitmask.h: #include "simdjson/icelake/bitmask.h" */ +/* begin file simdjson/icelake/bitmask.h */ +#ifndef SIMDJSON_ICELAKE_BITMASK_H +#define SIMDJSON_ICELAKE_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processor supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_BITMASK_H +/* end file simdjson/icelake/bitmask.h */ +/* including simdjson/icelake/simd.h: #include "simdjson/icelake/simd.h" */ +/* begin file simdjson/icelake/simd.h */ +#ifndef SIMDJSON_ICELAKE_SIMD_H +#define SIMDJSON_ICELAKE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if defined(__GNUC__) && !defined(__clang__) +#if __GNUC__ == 8 +#define SIMDJSON_GCC8 1 +#endif // __GNUC__ == 8 +#endif // defined(__GNUC__) && !defined(__clang__) + +#if SIMDJSON_GCC8 +/** + * GCC 8 fails to provide _mm512_set_epi8. We roll our own. + */ +inline __m512i _mm512_set_epi8(uint8_t a0, uint8_t a1, uint8_t a2, uint8_t a3, uint8_t a4, uint8_t a5, uint8_t a6, uint8_t a7, uint8_t a8, uint8_t a9, uint8_t a10, uint8_t a11, uint8_t a12, uint8_t a13, uint8_t a14, uint8_t a15, uint8_t a16, uint8_t a17, uint8_t a18, uint8_t a19, uint8_t a20, uint8_t a21, uint8_t a22, uint8_t a23, uint8_t a24, uint8_t a25, uint8_t a26, uint8_t a27, uint8_t a28, uint8_t a29, uint8_t a30, uint8_t a31, uint8_t a32, uint8_t a33, uint8_t a34, uint8_t a35, uint8_t a36, uint8_t a37, uint8_t a38, uint8_t a39, uint8_t a40, uint8_t a41, uint8_t a42, uint8_t a43, uint8_t a44, uint8_t a45, uint8_t a46, uint8_t a47, uint8_t a48, uint8_t a49, uint8_t a50, uint8_t a51, uint8_t a52, uint8_t a53, uint8_t a54, uint8_t a55, uint8_t a56, uint8_t a57, uint8_t a58, uint8_t a59, uint8_t a60, uint8_t a61, uint8_t a62, uint8_t a63) { + return _mm512_set_epi64(uint64_t(a7) + (uint64_t(a6) << 8) + (uint64_t(a5) << 16) + (uint64_t(a4) << 24) + (uint64_t(a3) << 32) + (uint64_t(a2) << 40) + (uint64_t(a1) << 48) + (uint64_t(a0) << 56), + uint64_t(a15) + (uint64_t(a14) << 8) + (uint64_t(a13) << 16) + (uint64_t(a12) << 24) + (uint64_t(a11) << 32) + (uint64_t(a10) << 40) + (uint64_t(a9) << 48) + (uint64_t(a8) << 56), + uint64_t(a23) + (uint64_t(a22) << 8) + (uint64_t(a21) << 16) + (uint64_t(a20) << 24) + (uint64_t(a19) << 32) + (uint64_t(a18) << 40) + (uint64_t(a17) << 48) + (uint64_t(a16) << 56), + uint64_t(a31) + (uint64_t(a30) << 8) + (uint64_t(a29) << 16) + (uint64_t(a28) << 24) + (uint64_t(a27) << 32) + (uint64_t(a26) << 40) + (uint64_t(a25) << 48) + (uint64_t(a24) << 56), + uint64_t(a39) + (uint64_t(a38) << 8) + (uint64_t(a37) << 16) + (uint64_t(a36) << 24) + (uint64_t(a35) << 32) + (uint64_t(a34) << 40) + (uint64_t(a33) << 48) + (uint64_t(a32) << 56), + uint64_t(a47) + (uint64_t(a46) << 8) + (uint64_t(a45) << 16) + (uint64_t(a44) << 24) + (uint64_t(a43) << 32) + (uint64_t(a42) << 40) + (uint64_t(a41) << 48) + (uint64_t(a40) << 56), + uint64_t(a55) + (uint64_t(a54) << 8) + (uint64_t(a53) << 16) + (uint64_t(a52) << 24) + (uint64_t(a51) << 32) + (uint64_t(a50) << 40) + (uint64_t(a49) << 48) + (uint64_t(a48) << 56), + uint64_t(a63) + (uint64_t(a62) << 8) + (uint64_t(a61) << 16) + (uint64_t(a60) << 24) + (uint64_t(a59) << 32) + (uint64_t(a58) << 40) + (uint64_t(a57) << 48) + (uint64_t(a56) << 56)); +} +#endif // SIMDJSON_GCC8 + + + +namespace simdjson { +namespace icelake { +namespace { +namespace simd { + + // Forward-declared so they can be used by splat and friends. + template + struct base { + __m512i value; + + // Zero constructor + simdjson_inline base() : value{__m512i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m512i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m512i&() const { return this->value; } + simdjson_inline operator __m512i&() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm512_or_si512(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm512_and_si512(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm512_xor_si512(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm512_andnot_si512(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; + + // Forward-declared so they can be used by splat and friends. + template + struct simd8; + + template> + struct base8: base> { + typedef uint32_t bitmask_t; + typedef uint64_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m512i _value) : base>(_value) {} + + friend simdjson_really_inline uint64_t operator==(const simd8 lhs, const simd8 rhs) { + return _mm512_cmpeq_epi8_mask(lhs, rhs); + } + + static const int SIZE = sizeof(base::value); + + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + // workaround for compilers unable to figure out that 16 - N is a constant (GCC 8) + constexpr int shift = 16 - N; + return _mm512_alignr_epi8(*this, _mm512_permutex2var_epi64(prev_chunk, _mm512_set_epi64(13, 12, 11, 10, 9, 8, 7, 6), *this), shift); + } + }; + + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm512_set1_epi8(uint8_t(-(!!_value))); } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m512i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} + simdjson_inline bool any() const { return !!_mm512_test_epi8_mask (*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; + + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm512_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm512_setzero_si512(); } + static simdjson_inline simd8 load(const T values[64]) { + return _mm512_loadu_si512(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m512i _value) : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[64]) const { return _mm512_storeu_si512(reinterpret_cast<__m512i *>(dst), *this); } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm512_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm512_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm512_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 32 - count_ones(mask) bytes of the result are significant but 32 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint64_t mask, L * output) const { + _mm512_mask_compressstoreu_epi8 (output,~mask,*this); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15, + int8_t v16, int8_t v17, int8_t v18, int8_t v19, int8_t v20, int8_t v21, int8_t v22, int8_t v23, + int8_t v24, int8_t v25, int8_t v26, int8_t v27, int8_t v28, int8_t v29, int8_t v30, int8_t v31, + int8_t v32, int8_t v33, int8_t v34, int8_t v35, int8_t v36, int8_t v37, int8_t v38, int8_t v39, + int8_t v40, int8_t v41, int8_t v42, int8_t v43, int8_t v44, int8_t v45, int8_t v46, int8_t v47, + int8_t v48, int8_t v49, int8_t v50, int8_t v51, int8_t v52, int8_t v53, int8_t v54, int8_t v55, + int8_t v56, int8_t v57, int8_t v58, int8_t v59, int8_t v60, int8_t v61, int8_t v62, int8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epi8(*this, other); } + + simdjson_inline simd8 operator>(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(*this, other),_mm512_set1_epi8(uint8_t(0x80))); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm512_maskz_abs_epi8(_mm512_cmpgt_epi8_mask(other, *this),_mm512_set1_epi8(uint8_t(0x80))); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m512i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t values[64]) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15, + uint8_t v16, uint8_t v17, uint8_t v18, uint8_t v19, uint8_t v20, uint8_t v21, uint8_t v22, uint8_t v23, + uint8_t v24, uint8_t v25, uint8_t v26, uint8_t v27, uint8_t v28, uint8_t v29, uint8_t v30, uint8_t v31, + uint8_t v32, uint8_t v33, uint8_t v34, uint8_t v35, uint8_t v36, uint8_t v37, uint8_t v38, uint8_t v39, + uint8_t v40, uint8_t v41, uint8_t v42, uint8_t v43, uint8_t v44, uint8_t v45, uint8_t v46, uint8_t v47, + uint8_t v48, uint8_t v49, uint8_t v50, uint8_t v51, uint8_t v52, uint8_t v53, uint8_t v54, uint8_t v55, + uint8_t v56, uint8_t v57, uint8_t v58, uint8_t v59, uint8_t v60, uint8_t v61, uint8_t v62, uint8_t v63 + ) : simd8(_mm512_set_epi8( + v63, v62, v61, v60, v59, v58, v57, v56, + v55, v54, v53, v52, v51, v50, v49, v48, + v47, v46, v45, v44, v43, v42, v41, v40, + v39, v38, v37, v36, v35, v34, v33, v32, + v31, v30, v29, v28, v27, v26, v25, v24, + v23, v22, v21, v20, v19, v18, v17, v16, + v15, v14, v13, v12, v11, v10, v9, v8, + v7, v6, v5, v4, v3, v2, v1, v0 + )) {} + + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15, + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm512_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm512_subs_epu8(*this, other); } + + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm512_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm512_min_epu8(other, *this); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline uint64_t operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline uint64_t operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->lt_bits(other).any_bits_set(); } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return _mm512_mask_blend_epi8(*this == uint8_t(0), _mm512_set1_epi8(0), _mm512_set1_epi8(-1)); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + + simdjson_inline bool is_ascii() const { return _mm512_movepi8_mask(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { + return !_mm512_test_epi8_mask(*this, *this); + } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return !_mm512_test_epi8_mask(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm512_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm512_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline uint64_t get_bit() const { return _mm512_movepi8_mask(_mm512_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 1, "Icelake kernel should use one register per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1) : chunks{chunk0, chunk1} {} + simdjson_inline simd8x64(const simd8 chunk0) : chunks{chunk0} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr)} {} + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(mask, output); + return 64 - count_ones(mask); + } + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + } + + simdjson_inline simd8 reduce_or() const { + return this->chunks[0]; + } + + simdjson_inline simd8x64 bit_or(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] | mask + ); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] == mask; + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return this->chunks[0] == other.chunks[0]; + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return this->chunks[0] <= mask; + } + }; // struct simd8x64 + +} // namespace simd + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_SIMD_H +/* end file simdjson/icelake/simd.h */ +/* including simdjson/icelake/stringparsing_defs.h: #include "simdjson/icelake/stringparsing_defs.h" */ +/* begin file simdjson/icelake/stringparsing_defs.h */ +#ifndef SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H +#define SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/simd.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return ((quote_bits - 1) & bs_bits) != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } + + uint64_t bs_bits; + uint64_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 15 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v(src); + // store to dest unconditionally - we can overwrite the bits we don't like later + v.store(dst); + return { + static_cast(v == '\\'), // bs_bits + static_cast(v == '"'), // quote_bits + }; +} + +} // unnamed namespace +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_ICELAKE_STRINGPARSING_DEFS_H +/* end file simdjson/icelake/stringparsing_defs.h */ +/* including simdjson/icelake/numberparsing_defs.h: #include "simdjson/icelake/numberparsing_defs.h" */ +/* begin file simdjson/icelake/numberparsing_defs.h */ +#ifndef SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H +#define SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace numberparsing { + +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace icelake +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_ICELAKE_NUMBERPARSING_DEFS_H +/* end file simdjson/icelake/numberparsing_defs.h */ +/* end file simdjson/icelake/begin.h */ +/* including simdjson/generic/ondemand/amalgamated.h for icelake: #include "simdjson/generic/ondemand/amalgamated.h" */ +/* begin file simdjson/generic/ondemand/amalgamated.h for icelake */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H) +#error simdjson/generic/ondemand/dependencies.h must be included before simdjson/generic/ondemand/amalgamated.h! +#endif + +// Stuff other things depend on +/* including simdjson/generic/ondemand/base.h for icelake: #include "simdjson/generic/ondemand/base.h" */ +/* begin file simdjson/generic/ondemand/base.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +/** + * A fast, simple, DOM-like interface that parses JSON as you use it. + * + * Designed for maximum speed and a lower memory profile. + */ +namespace ondemand { + +/** Represents the depth of a JSON value (number of nested arrays/objects). */ +using depth_t = int32_t; + +/** @copydoc simdjson::icelake::number_type */ +using number_type = simdjson::icelake::number_type; + +/** @private Position in the JSON buffer indexes */ +using token_position = const uint32_t *; + +class array; +class array_iterator; +class document; +class document_reference; +class document_stream; +class field; +class json_iterator; +enum class json_type; +struct number; +class object; +class object_iterator; +class parser; +class raw_json_string; +class token_iterator; +class value; +class value_iterator; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_BASE_H +/* end file simdjson/generic/ondemand/base.h for icelake */ +/* including simdjson/generic/ondemand/value_iterator.h for icelake: #include "simdjson/generic/ondemand/value_iterator.h" */ +/* begin file simdjson/generic/ondemand/value_iterator.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * Iterates through a single JSON value at a particular depth. + * + * Does not keep track of the type of value: provides methods for objects, arrays and scalars and expects + * the caller to call the right ones. + * + * @private This is not intended for external use. + */ +class value_iterator { +protected: + /** The underlying JSON iterator */ + json_iterator *_json_iter{}; + /** The depth of this value */ + depth_t _depth{}; + /** + * The starting token index for this value + */ + token_position _start_position{}; + +public: + simdjson_inline value_iterator() noexcept = default; + + /** + * Denote that we're starting a document. + */ + simdjson_inline void start_document() noexcept; + + /** + * Skips a non-iterated or partially-iterated JSON value, whether it is a scalar, array or object. + * + * Optimized for scalars. + */ + simdjson_warn_unused simdjson_inline error_code skip_child() noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is at the start of the value + */ + simdjson_inline bool at_start() const noexcept; + + /** + * Tell whether the value is open--if the value has not been used, or the array/object is still open. + */ + simdjson_inline bool is_open() const noexcept; + + /** + * Tell whether the value is at an object's first field (just after the {). + */ + simdjson_inline bool at_first_field() const noexcept; + + /** + * Abandon all iteration. + */ + simdjson_inline void abandon() noexcept; + + /** + * Get the child value as a value_iterator. + */ + simdjson_inline value_iterator child_value() const noexcept; + + /** + * Get the depth of this value. + */ + simdjson_inline int32_t depth() const noexcept; + + /** + * Get the JSON type of this value. + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() const noexcept; + + /** + * @addtogroup object Object iteration + * + * Methods to iterate and find object fields. These methods generally *assume* the value is + * actually an object; the caller is responsible for keeping track of that fact. + * + * @{ + */ + + /** + * Start an object iteration. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + */ + simdjson_warn_unused simdjson_inline simdjson_result start_object() noexcept; + /** + * Start an object iteration from the root. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_object() noexcept; + /** + * Checks whether an object could be started from the root. May be called by start_root_object. + * + * @returns SUCCESS if it is possible to safely start an object from the root (document level). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_object() noexcept; + /** + * Start an object iteration after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_object() noexcept; + /** + * Start an object iteration from the root, after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_object() noexcept; + + /** + * Moves to the next field in an object. + * + * Looks for , and }. If } is found, the object is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return whether there is another field in the object. + * @error TAPE_ERROR If there is a comma missing between fields. + * @error TAPE_ERROR If there is a comma, but not enough tokens remaining to have a key, :, and value. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_field() noexcept; + + /** + * Get the current field's key. + */ + simdjson_warn_unused simdjson_inline simdjson_result field_key() noexcept; + + /** + * Pass the : in the field and move to its value. + */ + simdjson_warn_unused simdjson_inline error_code field_value() noexcept; + + /** + * Find the next field with the given key. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline error_code find_field(const std::string_view key) noexcept; + + /** + * Find the next field with the given key, *without* unescaping. This assumes object order: it + * will not find the field if it was already passed when looking for some *other* field. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_raw(const std::string_view key) noexcept; + + /** + * Find the field with the given key without regard to order, and *without* unescaping. + * + * This is an unordered object lookup: if the field is not found initially, it will cycle around and scan from the beginning. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_unordered_raw(const std::string_view key) noexcept; + + /** @} */ + + /** + * @addtogroup array Array iteration + * Methods to iterate over array elements. These methods generally *assume* the value is actually + * an object; the caller is responsible for keeping track of that fact. + * @{ + */ + + /** + * Check for an opening [ and start an array iteration. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + */ + simdjson_warn_unused simdjson_inline simdjson_result start_array() noexcept; + /** + * Check for an opening [ and start an array iteration while at the root. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_array() noexcept; + /** + * Checks whether an array could be started from the root. May be called by start_root_array. + * + * @returns SUCCESS if it is possible to safely start an array from the root (document level). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_array() noexcept; + /** + * Start an array iteration, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_array() noexcept; + /** + * Start an array iteration from the root, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_array() noexcept; + + /** + * Moves to the next element in an array. + * + * Looks for , and ]. If ] is found, the array is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return Whether there is another element in the array. + * @error TAPE_ERROR If there is a comma missing between elements. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_element() noexcept; + + /** + * Get a child value iterator. + */ + simdjson_warn_unused simdjson_inline value_iterator child() const noexcept; + + /** @} */ + + /** + * @defgroup scalar Scalar values + * @addtogroup scalar + * @{ + */ + + simdjson_warn_unused simdjson_inline simdjson_result get_string(bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_bool() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_null() noexcept; + simdjson_warn_unused simdjson_inline bool is_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_integer() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + simdjson_warn_unused simdjson_inline simdjson_result get_root_string(bool check_trailing, bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_wobbly_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_raw_json_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_bool(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline bool is_root_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_integer(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number_type(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_null(bool check_trailing) noexcept; + + simdjson_inline error_code error() const noexcept; + simdjson_inline uint8_t *&string_buf_loc() noexcept; + simdjson_inline const json_iterator &json_iter() const noexcept; + simdjson_inline json_iterator &json_iter() noexcept; + + simdjson_inline void assert_is_valid() const noexcept; + simdjson_inline bool is_valid() const noexcept; + + /** @} */ +protected: + /** + * Restarts an array iteration. + * @returns Whether the array has any elements (returns false for empty). + */ + simdjson_inline simdjson_result reset_array() noexcept; + /** + * Restarts an object iteration. + * @returns Whether the object has any fields (returns false for empty). + */ + simdjson_inline simdjson_result reset_object() noexcept; + /** + * move_at_start(): moves us so that we are pointing at the beginning of + * the container. It updates the index so that at_start() is true and it + * syncs the depth. The user can then create a new container instance. + * + * Usage: used with value::count_elements(). + **/ + simdjson_inline void move_at_start() noexcept; + + /** + * move_at_container_start(): moves us so that we are pointing at the beginning of + * the container so that assert_at_container_start() passes. + * + * Usage: used with reset_array() and reset_object(). + **/ + simdjson_inline void move_at_container_start() noexcept; + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + simdjson_inline value_iterator(json_iterator *json_iter, depth_t depth, token_position start_index) noexcept; + + simdjson_inline simdjson_result parse_null(const uint8_t *json) const noexcept; + simdjson_inline simdjson_result parse_bool(const uint8_t *json) const noexcept; + simdjson_inline const uint8_t *peek_start() const noexcept; + simdjson_inline uint32_t peek_start_length() const noexcept; + + /** + * The general idea of the advance_... methods and the peek_* methods + * is that you first peek and check that you have desired type. If you do, + * and only if you do, then you advance. + * + * We used to unconditionally advance. But this made reasoning about our + * current state difficult. + * Suppose you always advance. Look at the 'value' matching the key + * "shadowable" in the following example... + * + * ({"globals":{"a":{"shadowable":[}}}}) + * + * If the user thinks it is a Boolean and asks for it, then we check the '[', + * decide it is not a Boolean, but still move into the next character ('}'). Now + * we are left pointing at '}' right after a '['. And we have not yet reported + * an error, only that we do not have a Boolean. + * + * If, instead, you just stand your ground until it is content that you know, then + * you will only even move beyond the '[' if the user tells you that you have an + * array. So you will be at the '}' character inside the array and, hopefully, you + * will then catch the error because an array cannot start with '}', but the code + * processing Boolean values does not know this. + * + * So the contract is: first call 'peek_...' and then call 'advance_...' only + * if you have determined that it is a type you can handle. + * + * Unfortunately, it makes the code more verbose, longer and maybe more error prone. + */ + + simdjson_inline void advance_scalar(const char *type) noexcept; + simdjson_inline void advance_root_scalar(const char *type) noexcept; + simdjson_inline void advance_non_root_scalar(const char *type) noexcept; + + simdjson_inline const uint8_t *peek_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_root_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_non_root_scalar(const char *type) noexcept; + + + simdjson_inline error_code start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept; + simdjson_inline error_code end_container() noexcept; + + /** + * Advance to a place expecting a value (increasing depth). + * + * @return The current token (the one left behind). + * @error TAPE_ERROR If the document ended early. + */ + simdjson_inline simdjson_result advance_to_value() noexcept; + + simdjson_inline error_code incorrect_type_error(const char *message) const noexcept; + simdjson_inline error_code error_unless_more_tokens(uint32_t tokens=1) const noexcept; + + simdjson_inline bool is_at_start() const noexcept; + /** + * is_at_iterator_start() returns true on an array or object after it has just been + * created, whether the instance is empty or not. + * + * Usage: used by array::begin() in debug mode (SIMDJSON_DEVELOPMENT_CHECKS) + */ + simdjson_inline bool is_at_iterator_start() const noexcept; + + /** + * Assuming that we are within an object, this returns true if we + * are pointing at a key. + * + * Usage: the skip_child() method should never be used while we are pointing + * at a key inside an object. + */ + simdjson_inline bool is_at_key() const noexcept; + + inline void assert_at_start() const noexcept; + inline void assert_at_container_start() const noexcept; + inline void assert_at_root() const noexcept; + inline void assert_at_child() const noexcept; + inline void assert_at_next() const noexcept; + inline void assert_at_non_root_start() const noexcept; + + /** Get the starting position of this value */ + simdjson_inline token_position start_position() const noexcept; + + /** @copydoc error_code json_iterator::position() const noexcept; */ + simdjson_inline token_position position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position last_position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position end_position() const noexcept; + /** @copydoc error_code json_iterator::report_error(error_code error, const char *message) noexcept; */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + friend class document; + friend class object; + friend class array; + friend class value; +}; // value_iterator + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::value_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H +/* end file simdjson/generic/ondemand/value_iterator.h for icelake */ +/* including simdjson/generic/ondemand/value.h for icelake: #include "simdjson/generic/ondemand/value.h" */ +/* begin file simdjson/generic/ondemand/value.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * An ephemeral JSON value returned during iteration. It is only valid for as long as you do + * not access more data in the JSON document. + */ +class value { +public: + /** + * Create a new invalid value. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline value() noexcept = default; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) noexcept; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() noexcept; + + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() noexcept; + + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + + /** + * Cast this JSON value (inside string) to a unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * Important: a value should be consumed once. Calling get_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + + + /** + * Cast this JSON value to a "wobbly" string. + * + * The string is may not be a valid UTF-8 string. + * See https://simonsapin.github.io/wtf-8/ + * + * Important: a value should be consumed once. Calling get_wobbly_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); +#endif + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + * + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * Performance hint: You should only call count_elements() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method on the object instance. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @return The type of JSON value (json_type::array, json_type::object, json_type::string, + * json_type::number, json_type::boolean, or json_type::null). + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the value is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the value is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the value is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * Performance note: if you call this function systematically + * before parsing a number, you may have fallen for a performance + * anti-pattern. + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + * + * Performance note: this is designed with performance in mind. When + * calling 'get_number()', you scan the number string only once, determining + * efficiently the type and storing it in an efficient manner. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. However, if this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view is guaranteed to be + * a non-space token. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline std::string_view raw_json_token() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + simdjson_inline simdjson_result current_location() noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. + * + * Calling at_pointer() on non-document instances (e.g., arrays and objects) is not + * standardized (by RFC 6901). We provide some experimental support for JSON pointers + * on non-document instances. Yet it is not the case when calling at_pointer on an array + * or an object instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + +protected: + /** + * Create a value. + */ + simdjson_inline value(const value_iterator &iter) noexcept; + + /** + * Skip this value, allowing iteration to continue. + */ + simdjson_inline void skip() noexcept; + + /** + * Start a value at the current position. + * + * (It should already be started; this is just a self-documentation method.) + */ + static simdjson_inline value start(const value_iterator &iter) noexcept; + + /** + * Resume a value. + */ + static simdjson_inline value resume(const value_iterator &iter) noexcept; + + /** + * Get the object, starting or resuming it as necessary + */ + simdjson_inline simdjson_result start_or_resume_object() noexcept; + + // simdjson_inline void log_value(const char *type) const noexcept; + // simdjson_inline void log_error(const char *message) const noexcept; + + value_iterator iter{}; + + friend class document; + friend class array_iterator; + friend class field; + friend class object; + friend struct simdjson_result; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::value &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result get_array() noexcept; + simdjson_inline simdjson_result get_object() noexcept; + + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() noexcept; + + template simdjson_inline error_code get(T &out) noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator icelake::ondemand::array() noexcept(false); + simdjson_inline operator icelake::ondemand::object() noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator icelake::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + */ + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + + /** @copydoc simdjson_inline std::string_view value::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** @copydoc simdjson_inline simdjson_result current_location() noexcept */ + simdjson_inline simdjson_result current_location() noexcept; + /** @copydoc simdjson_inline int32_t current_depth() const noexcept */ + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_H +/* end file simdjson/generic/ondemand/value.h for icelake */ +/* including simdjson/generic/ondemand/logger.h for icelake: #include "simdjson/generic/ondemand/logger.h" */ +/* begin file simdjson/generic/ondemand/logger.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +// Logging should be free unless SIMDJSON_VERBOSE_LOGGING is set. Importantly, it is critical +// that the call to the log functions be side-effect free. Thus, for example, you should not +// create temporary std::string instances. +namespace logger { + +enum class log_level : int32_t { + info = 0, + error = 1 +}; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + +// We do not want these functions to be 'really inlined' since real inlining is +// for performance purposes and if you are using the loggers, you do not care about +// performance (or should not). +static inline void log_headers() noexcept; +// If args are provided, title will be treated as format string +template +static inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +template +static inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; +static inline void log_event(const json_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_value(const json_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_start_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; + +static inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail="") noexcept; +static inline void log_error(const json_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +static inline void log_event(const value_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const value_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_error(const value_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +} // namespace logger +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_H +/* end file simdjson/generic/ondemand/logger.h for icelake */ +/* including simdjson/generic/ondemand/token_iterator.h for icelake: #include "simdjson/generic/ondemand/token_iterator.h" */ +/* begin file simdjson/generic/ondemand/token_iterator.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * Iterates through JSON tokens (`{` `}` `[` `]` `,` `:` `""` `123` `true` `false` `null`) + * detected by stage 1. + * + * @private This is not intended for external use. + */ +class token_iterator { +public: + /** + * Create a new invalid token_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline token_iterator() noexcept = default; + simdjson_inline token_iterator(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator &operator=(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator(const token_iterator &other) noexcept = default; + simdjson_inline token_iterator &operator=(const token_iterator &other) noexcept = default; + + /** + * Advance to the next token (returning the current one). + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + /** + * Reports the current offset in bytes from the start of the underlying buffer. + */ + simdjson_inline uint32_t current_offset() const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + + /** + * Return the current index. + */ + simdjson_inline token_position position() const noexcept; + /** + * Reset to a previously saved index. + */ + simdjson_inline void set_position(token_position target_position) noexcept; + + // NOTE: we don't support a full C++ iterator interface, because we expect people to make + // different calls to advance the iterator based on *their own* state. + + simdjson_inline bool operator==(const token_iterator &other) const noexcept; + simdjson_inline bool operator!=(const token_iterator &other) const noexcept; + simdjson_inline bool operator>(const token_iterator &other) const noexcept; + simdjson_inline bool operator>=(const token_iterator &other) const noexcept; + simdjson_inline bool operator<(const token_iterator &other) const noexcept; + simdjson_inline bool operator<=(const token_iterator &other) const noexcept; + +protected: + simdjson_inline token_iterator(const uint8_t *buf, token_position position) noexcept; + + /** + * Get the index of the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_index(int32_t delta=0) const noexcept; + /** + * Get the index of the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline uint32_t peek_index(token_position position) const noexcept; + + const uint8_t *buf{}; + token_position _position{}; + + friend class json_iterator; + friend class value_iterator; + friend class object; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::token_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H +/* end file simdjson/generic/ondemand/token_iterator.h for icelake */ +/* including simdjson/generic/ondemand/json_iterator.h for icelake: #include "simdjson/generic/ondemand/json_iterator.h" */ +/* begin file simdjson/generic/ondemand/json_iterator.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * Iterates through JSON tokens, keeping track of depth and string buffer. + * + * @private This is not intended for external use. + */ +class json_iterator { +protected: + token_iterator token{}; + ondemand::parser *parser{}; + /** + * Next free location in the string buffer. + * + * Used by raw_json_string::unescape() to have a place to unescape strings to. + */ + uint8_t *_string_buf_loc{}; + /** + * JSON error, if there is one. + * + * INCORRECT_TYPE and NO_SUCH_FIELD are *not* stored here, ever. + * + * PERF NOTE: we *hope* this will be elided into control flow, as it is only used (a) in the first + * iteration of the loop, or (b) for the final iteration after a missing comma is found in ++. If + * this is not elided, we should make sure it's at least not using up a register. Failing that, + * we should store it in document so there's only one of them. + */ + error_code error{SUCCESS}; + /** + * Depth of the current token in the JSON. + * + * - 0 = finished with document + * - 1 = document root value (could be [ or {, not yet known) + * - 2 = , or } inside root array/object + * - 3 = key or value inside root array/object. + */ + depth_t _depth{}; + /** + * Beginning of the document indexes. + * Normally we have root == parser->implementation->structural_indexes.get() + * but this may differ, especially in streaming mode (where we have several + * documents); + */ + token_position _root{}; + /** + * Normally, a json_iterator operates over a single document, but in + * some cases, we may have a stream of documents. This attribute is meant + * as meta-data: the json_iterator works the same irrespective of the + * value of this attribute. + */ + bool _streaming{false}; + +public: + simdjson_inline json_iterator() noexcept = default; + simdjson_inline json_iterator(json_iterator &&other) noexcept; + simdjson_inline json_iterator &operator=(json_iterator &&other) noexcept; + simdjson_inline explicit json_iterator(const json_iterator &other) noexcept = default; + simdjson_inline json_iterator &operator=(const json_iterator &other) noexcept = default; + /** + * Skips a JSON value, whether it is a scalar, array or object. + */ + simdjson_warn_unused simdjson_inline error_code skip_child(depth_t parent_depth) noexcept; + + /** + * Tell whether the iterator is still at the start + */ + simdjson_inline bool at_root() const noexcept; + + /** + * Tell whether we should be expected to run in streaming + * mode (iterating over many documents). It is pure metadata + * that does not affect how the iterator works. It is used by + * start_root_array() and start_root_object(). + */ + simdjson_inline bool streaming() const noexcept; + + /** + * Get the root value iterator + */ + simdjson_inline token_position root_position() const noexcept; + /** + * Assert that we are at the document depth (== 1) + */ + simdjson_inline void assert_at_document_depth() const noexcept; + /** + * Assert that we are at the root of the document + */ + simdjson_inline void assert_at_root() const noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is live (has not been moved). + */ + simdjson_inline bool is_alive() const noexcept; + + /** + * Abandon this iterator, setting depth to 0 (as if the document is finished). + */ + simdjson_inline void abandon() noexcept; + + /** + * Advance the current token without modifying depth. + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + + /** + * Returns true if there is a single token in the index (i.e., it is + * a JSON with a scalar value such as a single number). + * + * @return whether there is a single token + */ + simdjson_inline bool is_single_token() const noexcept; + + /** + * Assert that there are at least the given number of tokens left. + * + * Has no effect in release builds. + */ + simdjson_inline void assert_more_tokens(uint32_t required_tokens=1) const noexcept; + /** + * Assert that the given position addresses an actual token (is within bounds). + * + * Has no effect in release builds. + */ + simdjson_inline void assert_valid_position(token_position position) const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + /** + * Get a pointer to the current location in the input buffer. + * + * This is not null-terminated; it is a view into the JSON. + * + * You may be pointing outside of the input buffer: it is not generally + * safe to dereference this pointer. + */ + simdjson_inline const uint8_t *unsafe_pointer() const noexcept; + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token to retrieve. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token to retrieve. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + /** + * Get the JSON text for the last token in the document. + * + * This is not null-terminated; it is a view into the JSON. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek_last() const noexcept; + + /** + * Ascend one level. + * + * Validates that the depth - 1 == parent_depth. + * + * @param parent_depth the expected parent depth. + */ + simdjson_inline void ascend_to(depth_t parent_depth) noexcept; + + /** + * Descend one level. + * + * Validates that the new depth == child_depth. + * + * @param child_depth the expected child depth. + */ + simdjson_inline void descend_to(depth_t child_depth) noexcept; + simdjson_inline void descend_to(depth_t child_depth, int32_t delta) noexcept; + + /** + * Get current depth. + */ + simdjson_inline depth_t depth() const noexcept; + + /** + * Get current (writeable) location in the string buffer. + */ + simdjson_inline uint8_t *&string_buf_loc() noexcept; + + /** + * Report an unrecoverable error, preventing further iteration. + * + * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + /** + * Log error, but don't stop iteration. + * @param error The error to report. Must be INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code optional_error(error_code error, const char *message) noexcept; + + /** + * Take an input in json containing max_len characters and attempt to copy it over to tmpbuf, a buffer with + * N bytes of capacity. It will return false if N is too small (smaller than max_len) of if it is zero. + * The buffer (tmpbuf) is padded with space characters. + */ + simdjson_warn_unused simdjson_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept; + + simdjson_inline token_position position() const noexcept; + /** + * Write the raw_json_string to the string buffer and return a string_view. + * Each raw_json_string should be unescaped once, or else the string buffer might + * overflow. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, bool allow_replacement) noexcept; + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in) noexcept; + simdjson_inline void reenter_child(token_position position, depth_t child_depth) noexcept; + + simdjson_inline error_code consume_character(char c) noexcept; +#if SIMDJSON_DEVELOPMENT_CHECKS + simdjson_inline token_position start_position(depth_t depth) const noexcept; + simdjson_inline void set_start_position(depth_t depth, token_position position) noexcept; +#endif + + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Updates this json iterator so that it is back at the beginning of the document, + * as if it had just been created. + */ + inline void rewind() noexcept; + /** + * This checks whether the {,},[,] are balanced so that the document + * ends with proper zero depth. This requires scanning the whole document + * and it may be expensive. It is expected that it will be rarely called. + * It does not attempt to match { with } and [ with ]. + */ + inline bool balanced() const noexcept; +protected: + simdjson_inline json_iterator(const uint8_t *buf, ondemand::parser *parser) noexcept; + /// The last token before the end + simdjson_inline token_position last_position() const noexcept; + /// The token *at* the end. This points at gibberish and should only be used for comparison. + simdjson_inline token_position end_position() const noexcept; + /// The end of the buffer. + simdjson_inline token_position end() const noexcept; + + friend class document; + friend class document_stream; + friend class object; + friend class array; + friend class value; + friend class raw_json_string; + friend class parser; + friend class value_iterator; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; // json_iterator + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::json_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H +/* end file simdjson/generic/ondemand/json_iterator.h for icelake */ +/* including simdjson/generic/ondemand/json_type.h for icelake: #include "simdjson/generic/ondemand/json_type.h" */ +/* begin file simdjson/generic/ondemand/json_type.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * The type of a JSON value. + */ +enum class json_type { + // Start at 1 to catch uninitialized / default values more easily + array=1, ///< A JSON array ( [ 1, 2, 3 ... ] ) + object, ///< A JSON object ( { "a": 1, "b" 2, ... } ) + number, ///< A JSON number ( 1 or -2.3 or 4.5e6 ...) + string, ///< A JSON string ( "a" or "hello world\n" ...) + boolean, ///< A JSON boolean (true or false) + null ///< A JSON null (null) +}; + +/** + * A type representing a JSON number. + * The design of the struct is deliberately straight-forward. All + * functions return standard values with no error check. + */ +struct number { + + /** + * return the automatically determined type of + * the number: number_type::floating_point_number, + * number_type::signed_integer or number_type::unsigned_integer. + * + * enum class number_type { + * floating_point_number=1, /// a binary64 number + * signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + * unsigned_integer /// a positive integer larger or equal to 1<<63 + * }; + */ + simdjson_inline ondemand::number_type get_number_type() const noexcept; + /** + * return true if the automatically determined type of + * the number is number_type::unsigned_integer. + */ + simdjson_inline bool is_uint64() const noexcept; + /** + * return the value as a uint64_t, only valid if is_uint64() is true. + */ + simdjson_inline uint64_t get_uint64() const noexcept; + simdjson_inline operator uint64_t() const noexcept; + + /** + * return true if the automatically determined type of + * the number is number_type::signed_integer. + */ + simdjson_inline bool is_int64() const noexcept; + /** + * return the value as a int64_t, only valid if is_int64() is true. + */ + simdjson_inline int64_t get_int64() const noexcept; + simdjson_inline operator int64_t() const noexcept; + + + /** + * return true if the automatically determined type of + * the number is number_type::floating_point_number. + */ + simdjson_inline bool is_double() const noexcept; + /** + * return the value as a double, only valid if is_double() is true. + */ + simdjson_inline double get_double() const noexcept; + simdjson_inline operator double() const noexcept; + + /** + * Convert the number to a double. Though it always succeed, the conversion + * may be lossy if the number cannot be represented exactly. + */ + simdjson_inline double as_double() const noexcept; + + +protected: + /** + * The next block of declaration is designed so that we can call the number parsing + * functions on a number type. They are protected and should never be used outside + * of the core simdjson library. + */ + friend class value_iterator; + template + friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer); + template + friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer); + template + friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer); + /** Store a signed 64-bit value to the number. */ + simdjson_inline void append_s64(int64_t value) noexcept; + /** Store an unsigned 64-bit value to the number. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + /** Store a double value to the number. */ + simdjson_inline void append_double(double value) noexcept; + /** Specifies that the value is a double, but leave it undefined. */ + simdjson_inline void skip_double() noexcept; + /** + * End of friend declarations. + */ + + /** + * Our attributes are a union type (size = 64 bits) + * followed by a type indicator. + */ + union { + double floating_point_number; + int64_t signed_integer; + uint64_t unsigned_integer; + } payload{0}; + number_type type{number_type::signed_integer}; +}; + +/** + * Write the JSON type to the output stream + * + * @param out The output stream. + * @param type The json_type. + */ +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept; + +#if SIMDJSON_EXCEPTIONS +/** + * Send JSON type to an output stream. + * + * @param out The output stream. + * @param type The json_type. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false); +#endif + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::json_type &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H +/* end file simdjson/generic/ondemand/json_type.h for icelake */ +/* including simdjson/generic/ondemand/raw_json_string.h for icelake: #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * A string escaped per JSON rules, terminated with quote ("). They are used to represent + * unescaped keys inside JSON documents. + * + * (In other words, a pointer to the beginning of a string, just after the start quote, inside a + * JSON file.) + * + * This class is deliberately simplistic and has little functionality. You can + * compare a raw_json_string instance with an unescaped C string, but + * that is nearly all you can do. + * + * The raw_json_string is unescaped. If you wish to write an unescaped version of it to your own + * buffer, you may do so using the parser.unescape(string, buff) method, using an ondemand::parser + * instance. Doing so requires you to have a sufficiently large buffer. + * + * The raw_json_string instances originate typically from field instance which in turn represent + * key-value pairs from object instances. From a field instance, you get the raw_json_string + * instance by calling key(). You can, if you want a more usable string_view instance, call + * the unescaped_key() method on the field instance. You may also create a raw_json_string from + * any other string value, with the value.get_raw_json_string() method. Again, you can get + * a more usable string_view instance by calling get_string(). + * + */ +class raw_json_string { +public: + /** + * Create a new invalid raw_json_string. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline raw_json_string() noexcept = default; + + /** + * Create a new invalid raw_json_string pointed at the given location in the JSON. + * + * The given location must be just *after* the beginning quote (") in the JSON file. + * + * It *must* be terminated by a ", and be a valid JSON string. + */ + simdjson_inline raw_json_string(const uint8_t * _buf) noexcept; + /** + * Get the raw pointer to the beginning of the string in the JSON (just after the "). + * + * It is possible for this function to return a null pointer if the instance + * has outlived its existence. + */ + simdjson_inline const char * raw() const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done) on target.size() characters, + * and if the raw_json_string instance has a quote character at byte index target.size(). + * We never read more than length + 1 bytes in the raw_json_string instance. + * If length is smaller than target.size(), this will return false. + * + * The std::string_view instance may contain any characters. However, the caller + * is responsible for setting length so that length bytes may be read in the + * raw_json_string. + * + * Performance: the comparison may be done using memcmp which may be efficient + * for long strings. + */ + simdjson_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The std::string_view instance should not contain unescaped quote characters: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * Performance: the comparison is done byte-by-byte which might be inefficient for + * long strings. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The provided C string should not contain an unescaped quote character: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(const char* target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(const char* target) const noexcept; + + /** + * Returns true if target is free from unescaped quote. If target is known at + * compile-time, we might expect the computation to happen at compile time with + * many compilers (not all!). + */ + static simdjson_inline bool is_free_from_unescaped_quote(std::string_view target) noexcept; + static simdjson_inline bool is_free_from_unescaped_quote(const char* target) noexcept; + +private: + + + /** + * This will set the inner pointer to zero, effectively making + * this instance unusable. + */ + simdjson_inline void consume() noexcept { buf = nullptr; } + + /** + * Checks whether the inner pointer is non-null and thus usable. + */ + simdjson_inline simdjson_warn_unused bool alive() const noexcept { return buf != nullptr; } + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result will be a valid UTF-8. + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + * @param allow_replacement Whether we allow replacement of invalid surrogate pairs. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape(json_iterator &iter, bool allow_replacement) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result may not be a valid UTF-8. https://simonsapin.github.io/wtf-8/ + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(json_iterator &iter) const noexcept; + const uint8_t * buf{}; + friend class object; + friend class field; + friend class parser; + friend struct simdjson_result; +}; + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &, const raw_json_string &) noexcept; + +/** + * Comparisons between raw_json_string and std::string_view instances are potentially unsafe: the user is responsible + * for providing a string with no unescaped quote. Note that unescaped quotes cannot be present in valid JSON strings. + */ +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept; +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept; + + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::raw_json_string &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private + + simdjson_inline simdjson_result raw() const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape(icelake::ondemand::json_iterator &iter, bool allow_replacement) const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(icelake::ondemand::json_iterator &iter) const noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H +/* end file simdjson/generic/ondemand/raw_json_string.h for icelake */ +/* including simdjson/generic/ondemand/parser.h for icelake: #include "simdjson/generic/ondemand/parser.h" */ +/* begin file simdjson/generic/ondemand/parser.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * The default batch size for document_stream instances for this On Demand kernel. + * Note that different On Demand kernel may use a different DEFAULT_BATCH_SIZE value + * in the future. + */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; + +/** + * A JSON fragment iterator. + * + * This holds the actual iterator as well as the buffer for writing strings. + */ +class parser { +public: + /** + * Create a JSON parser. + * + * The new parser will have zero capacity. + */ + inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; + + inline parser(parser &&other) noexcept = default; + simdjson_inline parser(const parser &other) = delete; + simdjson_inline parser &operator=(const parser &other) = delete; + simdjson_inline parser &operator=(parser &&other) noexcept = default; + + /** Deallocate the JSON parser. */ + inline ~parser() noexcept = default; + + /** + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * document doc = parser.iterate(json); + * + * It is expected that the content is a valid UTF-8 file, containing a valid JSON document. + * Otherwise the iterate method may return an error. In particular, the whole input should be + * valid: we do not attempt to tolerate incorrect content either before or after a JSON + * document. + * + * ### IMPORTANT: Validate what you use + * + * Calling iterate on an invalid JSON document may not immediately trigger an error. The call to + * iterate does not parse and validate the whole document. + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * @param len The length of the JSON. + * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING). + * + * @return The document, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate(padded_string_view json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const char *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(std::string_view json, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const std::string &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(padded_string &&json) & noexcept = delete; + + /** + * @private + * + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * json_iterator doc = parser.iterate(json); + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * The ondemand::document instance holds the iterator. The document must remain in scope + * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * + * @return The iterator, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate_raw(padded_string_view json) & noexcept; + + + /** + * Parse a buffer containing many JSON documents. + * + * auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded; + * ondemand::parser parser; + * ondemand::document_stream docs = parser.iterate_many(json); + * for (auto & doc : docs) { + * std::cout << doc["foo"] << std::endl; + * } + * // Prints 1 2 3 + * + * No copy of the input buffer is made. + * + * The function is lazy: it may be that no more than one JSON document at a time is parsed. + * + * The caller is responsabile to ensure that the input string data remains unchanged and is + * not deleted during the loop. + * + * ### Format + * + * The buffer must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) + * + * documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. Documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with ASCII whitespace. + * + * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8). + * + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excessively small values may impact negatively the + * performance. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * ### Threads + * + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The concatenated JSON to parse. + * @param len The length of the concatenated JSON. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 10MB, which has been a reasonable sweet spot in our tests. + * @param allow_comma_separated (defaults on false) This allows a mode where the documents are + * separated by commas instead of whitespace. It comes with a performance + * penalty because the entire document is indexed at once (and the document must be + * less than 4 GB), and there is no multithreading. In this mode, the batch_size parameter + * is effectively ignored, as it is set to at least the document size. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const std::string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const std::string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const padded_string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const padded_string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_result iterate_many(const char *buf, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept = delete; + + /** The capacity of this parser (the largest document it can process). */ + simdjson_inline size_t capacity() const noexcept; + /** The maximum capacity of this parser (the largest document it is allowed to process). */ + simdjson_inline size_t max_capacity() const noexcept; + simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; + /** + * The maximum depth of this parser (the most deeply nested objects and arrays it can process). + * This parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * The max_depth parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused error_code allocate(size_t capacity, size_t max_depth=DEFAULT_MAX_DEPTH) noexcept; + + #ifdef SIMDJSON_THREADS_ENABLED + /** + * The parser instance can use threads when they are available to speed up some + * operations. It is enabled by default. Changing this attribute will change the + * behavior of the parser for future operations. + */ + bool threaded{true}; + #endif + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result must be valid UTF-8. + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @param allow_replacement Whether we allow a replacement if the input string contains unmatched surrogate pairs. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement = false) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result may not be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept; + +private: + /** @private [for benchmarking access] The implementation to use */ + std::unique_ptr implementation{}; + size_t _capacity{0}; + size_t _max_capacity; + size_t _max_depth{DEFAULT_MAX_DEPTH}; + std::unique_ptr string_buf{}; +#if SIMDJSON_DEVELOPMENT_CHECKS + std::unique_ptr start_positions{}; +#endif + + friend class json_iterator; + friend class document_stream; +}; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::parser &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_H +/* end file simdjson/generic/ondemand/parser.h for icelake */ + +// All other declarations +/* including simdjson/generic/ondemand/array.h for icelake: #include "simdjson/generic/ondemand/array.h" */ +/* begin file simdjson/generic/ondemand/array.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * A forward-only JSON array. + */ +class array { +public: + /** + * Create a new invalid array. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline array() noexcept = default; + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an array is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the beginning of the array and checks whether the + * array is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result is_empty() & noexcept; + /** + * Reset the iterator so that we are pointing back at the + * beginning of the array. You should still consume values only once even if you + * can iterate through the array more than once. If you unescape a string + * within the array more than once, you have unsafe code. Note that rewinding + * an array means that you may need to reparse it anew: it is not a free + * operation. + * + * @returns true if the array contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/0/foo/a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an array + * instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the array and returns a string_view instance corresponding to the + * array as represented in JSON. It points inside the original document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + + /** + * Get the value at the given index. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; +protected: + /** + * Go to the end of the array, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + + /** + * Begin array iteration. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + */ + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + /** + * Begin array iteration from the root. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + * @error TAPE_ERROR if there is no closing ] at the end of the document. + */ + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + /** + * Begin array iteration. + * + * This version of the method should be called after the initial [ has been verified, and is + * intended for use by switch statements that check the type of a value. + * + * @param iter The iterator. Must be after the initial [. Will be *moved* into the resulting array. + */ + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + + /** + * Create an array at the given Internal array creation. Call array::start() or array::started() instead of this. + * + * @param iter The iterator. Must either be at the start of the first element with iter.is_alive() + * == true, or past the [] with is_alive() == false if the array is empty. Will be *moved* + * into the resulting array. + */ + simdjson_inline array(const value_iterator &iter) noexcept; + + /** + * Iterator marking current position. + * + * iter.is_alive() == false indicates iteration is complete. + */ + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; + friend struct simdjson_result; + friend class array_iterator; +}; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::array &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + inline simdjson_result count_elements() & noexcept; + inline simdjson_result is_empty() & noexcept; + inline simdjson_result reset() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_H +/* end file simdjson/generic/ondemand/array.h for icelake */ +/* including simdjson/generic/ondemand/array_iterator.h for icelake: #include "simdjson/generic/ondemand/array_iterator.h" */ +/* begin file simdjson/generic/ondemand/array_iterator.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * A forward-only JSON array. + * + * This is an input_iterator, meaning: + * - It is forward-only + * - * must be called exactly once per element. + * - ++ must be called exactly once in between each * (*, ++, *, ++, * ...) + */ +class array_iterator { +public: + /** Create a new, invalid array iterator. */ + simdjson_inline array_iterator() noexcept = default; + + // + // Iterator interface + // + + /** + * Get the current element. + * + * Part of the std::iterator interface. + */ + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + /** + * Check if we are at the end of the JSON. + * + * Part of the std::iterator interface. + * + * @return true if there are no more elements in the JSON array. + */ + simdjson_inline bool operator==(const array_iterator &) const noexcept; + /** + * Check if there are more elements in the JSON array. + * + * Part of the std::iterator interface. + * + * @return true if there are more elements in the JSON array. + */ + simdjson_inline bool operator!=(const array_iterator &) const noexcept; + /** + * Move to the next element. + * + * Part of the std::iterator interface. + */ + simdjson_inline array_iterator &operator++() noexcept; + +private: + value_iterator iter{}; + + simdjson_inline array_iterator(const value_iterator &iter) noexcept; + + friend class array; + friend class value; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::array_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H +/* end file simdjson/generic/ondemand/array_iterator.h for icelake */ +/* including simdjson/generic/ondemand/document.h for icelake: #include "simdjson/generic/ondemand/document.h" */ +/* begin file simdjson/generic/ondemand/document.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * A JSON document. It holds a json_iterator instance. + * + * Used by tokens to get text, and string buffer location. + * + * You must keep the document around during iteration. + */ +class document { +public: + /** + * Create a new invalid document. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline document() noexcept = default; + simdjson_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy + simdjson_inline document(document &&other) noexcept = default; + simdjson_inline document &operator=(const document &other) noexcept = delete; + simdjson_inline document &operator=(document &&other) noexcept = default; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() & noexcept; + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() & noexcept; + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + /** + * Cast this JSON value (inside string) to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Important: Calling get_string() twice on the same document is an error. + * + * @param Whether to allow a replacement character for unmatched surrogate pairs. + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + /** + * Cast this JSON value to a string. + * + * The string is not guaranteed to be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * + * Important: Calling get_wobbly_string() twice on the same document is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + /** + * Cast this JSON value to a value when the document is an object or an array. + * + * @returns A value if a JSON array or object cannot be found. + * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result get_value() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() & noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + /** @overload template simdjson_result get() & noexcept */ + template simdjson_inline simdjson_result get() && noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value + * + * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances. + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) & noexcept; + /** @overload template error_code get(T &out) & noexcept */ + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() & noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() & noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); + /** + * Cast this JSON value to a value. + * + * @returns A value value. + * @exception if a JSON value cannot be found + */ + simdjson_inline operator value() noexcept(false); +#endif + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) & noexcept; + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to + * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the document is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the document is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the document is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. If this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view may be the padded buffer. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** + * Reset the iterator inside the document instance so we are pointing back at the + * beginning of the document, as if it had just been created. It invalidates all + * values, objects and arrays that you have created so far (including unescaped strings). + */ + inline void rewind() noexcept; + /** + * Returns debugging information. + */ + inline std::string to_debug_string() noexcept; + /** + * Some unrecoverable error conditions may render the document instance unusable. + * The is_alive() method returns true when the document is still suitable. + */ + inline bool is_alive() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Returns true if this document has been fully parsed. + * If you have consumed the whole document and at_end() returns + * false, then there may be trailing content. + */ + inline bool at_end() const noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() automatically calls rewind between each call. Thus + * all values, objects and arrays that you have created so far (including unescaped strings) + * are invalidated. After calling at_pointer, you need to consume the result: string values + * should be stored in your own variables, arrays should be decoded and stored in your own array-like + * structures and so forth. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + * - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the document and returns a string_view instance corresponding to the + * document as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; +protected: + /** + * Consumes the document. + */ + simdjson_inline error_code consume() noexcept; + + simdjson_inline document(ondemand::json_iterator &&iter) noexcept; + simdjson_inline const uint8_t *text(uint32_t idx) const noexcept; + + simdjson_inline value_iterator resume_value_iterator() noexcept; + simdjson_inline value_iterator get_root_value_iterator() noexcept; + simdjson_inline simdjson_result start_or_resume_object() noexcept; + static simdjson_inline document start(ondemand::json_iterator &&iter) noexcept; + + // + // Fields + // + json_iterator iter{}; ///< Current position in the document + static constexpr depth_t DOCUMENT_DEPTH = 0; ///< document depth is always 0 + + friend class array_iterator; + friend class value; + friend class ondemand::parser; + friend class object; + friend class array; + friend class field; + friend class token; + friend class document_stream; + friend class document_reference; +}; + + +/** + * A document_reference is a thin wrapper around a document reference instance. + */ +class document_reference { +public: + simdjson_inline document_reference() noexcept; + simdjson_inline document_reference(document &d) noexcept; + simdjson_inline document_reference(const document_reference &other) noexcept = default; + simdjson_inline document_reference& operator=(const document_reference &other) noexcept = default; + simdjson_inline void rewind() noexcept; + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + + simdjson_inline simdjson_result is_null() noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + simdjson_inline operator document&() const noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator array() & noexcept(false); + simdjson_inline operator object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + simdjson_inline simdjson_result raw_json_token() noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +private: + document *doc{nullptr}; +}; +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::document &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() & noexcept; + template simdjson_inline simdjson_result get() && noexcept; + + template simdjson_inline error_code get(T &out) & noexcept; + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator icelake::ondemand::array() & noexcept(false); + simdjson_inline operator icelake::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator icelake::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator icelake::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool at_end() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + + + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::document_reference value, error_code error) noexcept; + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator icelake::ondemand::array() & noexcept(false); + simdjson_inline operator icelake::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator icelake::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator icelake::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document_reference::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H +/* end file simdjson/generic/ondemand/document.h for icelake */ +/* including simdjson/generic/ondemand/document_stream.h for icelake: #include "simdjson/generic/ondemand/document_stream.h" */ +/* begin file simdjson/generic/ondemand/document_stream.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#ifdef SIMDJSON_THREADS_ENABLED +#include +#include +#include +#endif + +namespace simdjson { +namespace icelake { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED +/** @private Custom worker class **/ +struct stage1_worker { + stage1_worker() noexcept = default; + stage1_worker(const stage1_worker&) = delete; + stage1_worker(stage1_worker&&) = delete; + stage1_worker operator=(const stage1_worker&) = delete; + ~stage1_worker(); + /** + * We only start the thread when it is needed, not at object construction, this may throw. + * You should only call this once. + **/ + void start_thread(); + /** + * Start a stage 1 job. You should first call 'run', then 'finish'. + * You must call start_thread once before. + */ + void run(document_stream * ds, parser * stage1, size_t next_batch_start); + /** Wait for the run to finish (blocking). You should first call 'run', then 'finish'. **/ + void finish(); + +private: + + /** + * Normally, we would never stop the thread. But we do in the destructor. + * This function is only safe assuming that you are not waiting for results. You + * should have called run, then finish, and be done. + **/ + void stop_thread(); + + std::thread thread{}; + /** These three variables define the work done by the thread. **/ + ondemand::parser * stage1_thread_parser{}; + size_t _next_batch_start{}; + document_stream * owner{}; + /** + * We have two state variables. This could be streamlined to one variable in the future but + * we use two for clarity. + */ + bool has_work{false}; + bool can_work{true}; + + /** + * We lock using a mutex. + */ + std::mutex locking_mutex{}; + std::condition_variable cond_var{}; + + friend class document_stream; +}; +#endif // SIMDJSON_THREADS_ENABLED + +/** + * A forward-only stream of documents. + * + * Produced by parser::iterate_many. + * + */ +class document_stream { +public: + /** + * Construct an uninitialized document_stream. + * + * ```c++ + * document_stream docs; + * auto error = parser.iterate_many(json).get(docs); + * ``` + */ + simdjson_inline document_stream() noexcept; + /** Move one document_stream to another. */ + simdjson_inline document_stream(document_stream &&other) noexcept = default; + /** Move one document_stream to another. */ + simdjson_inline document_stream &operator=(document_stream &&other) noexcept = default; + + simdjson_inline ~document_stream() noexcept; + + /** + * Returns the input size in bytes. + */ + inline size_t size_in_bytes() const noexcept; + + /** + * After iterating through the stream, this method + * returns the number of bytes that were not parsed at the end + * of the stream. If truncated_bytes() differs from zero, + * then the input was truncated maybe because incomplete JSON + * documents were found at the end of the stream. You + * may need to process the bytes in the interval [size_in_bytes()-truncated_bytes(), size_in_bytes()). + * + * You should only call truncated_bytes() after streaming through all + * documents, like so: + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto & doc : stream) { + * // do something with doc + * } + * size_t truncated = stream.truncated_bytes(); + * + */ + inline size_t truncated_bytes() const noexcept; + + class iterator { + public: + using value_type = simdjson_result; + using reference = value_type; + + using difference_type = std::ptrdiff_t; + + using iterator_category = std::input_iterator_tag; + + /** + * Default constructor. + */ + simdjson_inline iterator() noexcept; + /** + * Get the current document (or error). + */ + simdjson_inline simdjson_result operator*() noexcept; + /** + * Advance to the next document (prefix). + */ + inline iterator& operator++() noexcept; + /** + * Check if we're at the end yet. + * @param other the end iterator to compare to. + */ + simdjson_inline bool operator!=(const iterator &other) const noexcept; + /** + * @private + * + * Gives the current index in the input document in bytes. + * + * document_stream stream = parser.parse_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * auto doc = *i; + * size_t index = i.current_index(); + * } + * + * This function (current_index()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + */ + simdjson_inline size_t current_index() const noexcept; + + /** + * @private + * + * Gives a view of the current document at the current position. + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * std::string_view v = i.source(); + * } + * + * The returned string_view instance is simply a map to the (unparsed) + * source string: it may thus include white-space characters and all manner + * of padding. + * + * This function (source()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + * + */ + simdjson_inline std::string_view source() const noexcept; + + /** + * Returns error of the stream (if any). + */ + inline error_code error() const noexcept; + + private: + simdjson_inline iterator(document_stream *s, bool finished) noexcept; + /** The document_stream we're iterating through. */ + document_stream* stream; + /** Whether we're finished or not. */ + bool finished; + + friend class document; + friend class document_stream; + friend class json_iterator; + }; + + /** + * Start iterating the documents in the stream. + */ + simdjson_inline iterator begin() noexcept; + /** + * The end of the stream, for iterator comparison purposes. + */ + simdjson_inline iterator end() noexcept; + +private: + + document_stream &operator=(const document_stream &) = delete; // Disallow copying + document_stream(const document_stream &other) = delete; // Disallow copying + + /** + * Construct a document_stream. Does not allocate or parse anything until the iterator is + * used. + * + * @param parser is a reference to the parser instance used to generate this document_stream + * @param buf is the raw byte buffer we need to process + * @param len is the length of the raw byte buffer in bytes + * @param batch_size is the size of the windows (must be strictly greater or equal to the largest JSON document) + */ + simdjson_inline document_stream( + ondemand::parser &parser, + const uint8_t *buf, + size_t len, + size_t batch_size, + bool allow_comma_separated + ) noexcept; + + /** + * Parse the first document in the buffer. Used by begin(), to handle allocation and + * initialization. + */ + inline void start() noexcept; + + /** + * Parse the next document found in the buffer previously given to document_stream. + * + * The content should be a valid JSON document encoded as UTF-8. If there is a + * UTF-8 BOM, the caller is responsible for omitting it, UTF-8 BOM are + * discouraged. + * + * You do NOT need to pre-allocate a parser. This function takes care of + * pre-allocating a capacity defined by the batch_size defined when creating the + * document_stream object. + * + * The function returns simdjson::EMPTY if there is no more data to be parsed. + * + * The function returns simdjson::SUCCESS (as integer = 0) in case of success + * and indicates that the buffer has successfully been parsed to the end. + * Every document it contained has been parsed without error. + * + * The function returns an error code from simdjson/simdjson.h in case of failure + * such as simdjson::CAPACITY, simdjson::MEMALLOC, simdjson::DEPTH_ERROR and so forth; + * the simdjson::error_message function converts these error codes into a string). + * + * You can also check validity by calling parser.is_valid(). The same parser can + * and should be reused for the other documents in the buffer. + */ + inline void next() noexcept; + + /** Move the json_iterator of the document to the location of the next document in the stream. */ + inline void next_document() noexcept; + + /** Get the next document index. */ + inline size_t next_batch_start() const noexcept; + + /** Pass the next batch through stage 1 with the given parser. */ + inline error_code run_stage1(ondemand::parser &p, size_t batch_start) noexcept; + + // Fields + ondemand::parser *parser; + const uint8_t *buf; + size_t len; + size_t batch_size; + bool allow_comma_separated; + /** + * We are going to use just one document instance. The document owns + * the json_iterator. It implies that we only ever pass a reference + * to the document to the users. + */ + document doc{}; + /** The error (or lack thereof) from the current document. */ + error_code error; + size_t batch_start{0}; + size_t doc_index{}; + + #ifdef SIMDJSON_THREADS_ENABLED + /** Indicates whether we use threads. Note that this needs to be a constant during the execution of the parsing. */ + bool use_thread; + + inline void load_from_stage1_thread() noexcept; + + /** Start a thread to run stage 1 on the next batch. */ + inline void start_stage1_thread() noexcept; + + /** Wait for the stage 1 thread to finish and capture the results. */ + inline void finish_stage1_thread() noexcept; + + /** The error returned from the stage 1 thread. */ + error_code stage1_thread_error{UNINITIALIZED}; + /** The thread used to run stage 1 against the next batch in the background. */ + std::unique_ptr worker{new(std::nothrow) stage1_worker()}; + /** + * The parser used to run stage 1 in the background. Will be swapped + * with the regular parser when finished. + */ + ondemand::parser stage1_thread_parser{}; + + friend struct stage1_worker; + #endif // SIMDJSON_THREADS_ENABLED + + friend class parser; + friend class document; + friend class json_iterator; + friend struct simdjson_result; + friend struct internal::simdjson_result_base; +}; // document_stream + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::document_stream &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H +/* end file simdjson/generic/ondemand/document_stream.h for icelake */ +/* including simdjson/generic/ondemand/field.h for icelake: #include "simdjson/generic/ondemand/field.h" */ +/* begin file simdjson/generic/ondemand/field.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * A JSON field (key/value pair) in an object. + * + * Returned from object iteration. + * + * Extends from std::pair so you can use C++ algorithms that rely on pairs. + */ +class field : public std::pair { +public: + /** + * Create a new invalid field. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline field() noexcept; + + /** + * Get the key as a string_view (for higher speed, consider raw_key). + * We deliberately use a more cumbersome name (unescaped_key) to force users + * to think twice about using it. + * + * This consumes the key: once you have called unescaped_key(), you cannot + * call it again nor can you call key(). + */ + simdjson_inline simdjson_warn_unused simdjson_result unescaped_key(bool allow_replacement) noexcept; + /** + * Get the key as a raw_json_string. Can be used for direct comparison with + * an unescaped C string: e.g., key() == "test". + */ + simdjson_inline raw_json_string key() const noexcept; + /** + * Get the field value. + */ + simdjson_inline ondemand::value &value() & noexcept; + /** + * @overload ondemand::value &ondemand::value() & noexcept + */ + simdjson_inline ondemand::value value() && noexcept; + +protected: + simdjson_inline field(raw_json_string key, ondemand::value &&value) noexcept; + static simdjson_inline simdjson_result start(value_iterator &parent_iter) noexcept; + static simdjson_inline simdjson_result start(const value_iterator &parent_iter, raw_json_string key) noexcept; + friend struct simdjson_result; + friend class object_iterator; +}; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::field &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result unescaped_key(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result key() noexcept; + simdjson_inline simdjson_result value() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_H +/* end file simdjson/generic/ondemand/field.h for icelake */ +/* including simdjson/generic/ondemand/object.h for icelake: #include "simdjson/generic/ondemand/object.h" */ +/* begin file simdjson/generic/ondemand/object.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +/** + * A forward-only JSON object field iterator. + */ +class object { +public: + /** + * Create a new invalid object. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a + * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an object + * instance: there is no rewind and no invalidation. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + + /** + * Reset the iterator so that we are pointing back at the + * beginning of the object. You should still consume values only once even if you + * can iterate through the object more than once. If you unescape a string within + * the object more than once, you have unsafe code. Note that rewinding an object + * means that you may need to reparse it anew: it is not a free operation. + * + * @returns true if the object contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * This method scans the beginning of the object and checks whether the + * object is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + inline simdjson_result is_empty() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Consumes the object and returns a string_view instance corresponding to the + * object as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + +protected: + /** + * Go to the end of the object, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + static simdjson_inline object resume(const value_iterator &iter) noexcept; + simdjson_inline object(const value_iterator &iter) noexcept; + + simdjson_warn_unused simdjson_inline error_code find_field_raw(const std::string_view key) noexcept; + + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::object &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + inline simdjson_result reset() noexcept; + inline simdjson_result is_empty() noexcept; + inline simdjson_result count_fields() & noexcept; + inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_H +/* end file simdjson/generic/ondemand/object.h for icelake */ +/* including simdjson/generic/ondemand/object_iterator.h for icelake: #include "simdjson/generic/ondemand/object_iterator.h" */ +/* begin file simdjson/generic/ondemand/object_iterator.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +class object_iterator { +public: + /** + * Create a new invalid object_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object_iterator() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline simdjson_result operator*() noexcept; + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const object_iterator &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const object_iterator &) const noexcept; + // Checks for ']' and ',' + simdjson_inline object_iterator &operator++() noexcept; + +private: + /** + * The underlying JSON iterator. + * + * PERF NOTE: expected to be elided in favor of the parent document: this is set when the object + * is first used, and never changes afterwards. + */ + value_iterator iter{}; + + simdjson_inline object_iterator(const value_iterator &iter) noexcept; + friend struct simdjson_result; + friend class object; +}; + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public icelake::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(icelake::ondemand::object_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + // Checks for ']' and ',' + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H +/* end file simdjson/generic/ondemand/object_iterator.h for icelake */ +/* including simdjson/generic/ondemand/serialization.h for icelake: #include "simdjson/generic/ondemand/serialization.h" */ +/* begin file simdjson/generic/ondemand/serialization.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Create a string-view instance out of a document instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(icelake::ondemand::document& x) noexcept; +/** + * Create a string-view instance out of a value instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. The value must + * not have been accessed previously. It does not + * validate the content. + */ +inline simdjson_result to_json_string(icelake::ondemand::value& x) noexcept; +/** + * Create a string-view instance out of an object instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(icelake::ondemand::object& x) noexcept; +/** + * Create a string-view instance out of an array instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(icelake::ondemand::array& x) noexcept; +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +} // namespace simdjson + +/** + * We want to support argument-dependent lookup (ADL). + * Hence we should define operator<< in the namespace + * where the argument (here value, object, etc.) resides. + * Credit: @madhur4127 + * See https://github.com/simdjson/simdjson/issues/1768 + */ +namespace simdjson { namespace icelake { namespace ondemand { + +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The element. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::value x); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::array value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::document& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::document_reference& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The object. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::object value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +}}} // namespace simdjson::icelake::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H +/* end file simdjson/generic/ondemand/serialization.h for icelake */ + +// Inline definitions +/* including simdjson/generic/ondemand/array-inl.h for icelake: #include "simdjson/generic/ondemand/array-inl.h" */ +/* begin file simdjson/generic/ondemand/array-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter->depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the array is first found and the iterator is just past the `{`. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the `,` before the next value (or `]`). In this state, +// depth == iter->depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter->depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter->depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the array iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet element may be missing or not be an +// array--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter->depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between elements, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter->depth == depth, and at_start == false. +// +// ## Terminal State +// +// The terminal state has iter->depth < depth. at_start is always false. +// +// - Finished: When we have reached a `]` or have reported an error, we are finished. We signal this +// by decrementing depth. In this state, iter->depth < depth, at_start == false, and +// error == SUCCESS. +// + +simdjson_inline array::array(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result array::start(value_iterator &iter) noexcept { + // We don't need to know if the array is empty to start iteration, but we do want to know if there + // is an error--thus `simdjson_unused`. + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::start_root(value_iterator &iter) noexcept { + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_root_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::started(value_iterator &iter) noexcept { + bool has_value; + SIMDJSON_TRY(iter.started_array().get(has_value)); + return array(iter); +} + +simdjson_inline simdjson_result array::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return array_iterator(iter); +} +simdjson_inline simdjson_result array::end() noexcept { + return array_iterator(iter); +} +simdjson_inline error_code array::consume() noexcept { + auto error = iter.json_iter().skip_child(iter.depth()-1); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result array::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter._json_iter->unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline simdjson_result array::count_elements() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the array after counting the number of elements. + iter.reset_array(); + return count; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline simdjson_result array::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_array().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +inline simdjson_result array::reset() & noexcept { + return iter.reset_array(); +} + +inline simdjson_result array::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } + + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } + + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" + + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + // Get the child + auto child = at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; + } + + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); + } + return child; +} + +simdjson_inline simdjson_result array::at(size_t index) noexcept { + size_t i = 0; + for (auto value : *this) { + if (i == index) { return value; } + i++; + } + return INDEX_OUT_OF_BOUNDS; +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + icelake::ondemand::array &&value +) noexcept + : implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept + : implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::is_empty() & noexcept { + if (error()) { return error(); } + return first.is_empty(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H +/* end file simdjson/generic/ondemand/array-inl.h for icelake */ +/* including simdjson/generic/ondemand/array_iterator-inl.h for icelake: #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/array_iterator-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result array_iterator::operator*() noexcept { + if (iter.error()) { iter.abandon(); return iter.error(); } + return value(iter.child()); +} +simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept { + return iter.is_open(); +} +simdjson_inline array_iterator &array_iterator::operator++() noexcept { + error_code error; + // PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here. + // However, it does not seem to make a perf difference, so we add it out of an abundance of caution. + if (( error = iter.error() )) { return *this; } + if (( error = iter.skip_child() )) { return *this; } + if (( error = iter.has_next_element().error() )) { return *this; } + return *this; +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + icelake::ondemand::array_iterator &&value +) noexcept + : icelake::implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : icelake::implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++(first); + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/array_iterator-inl.h for icelake */ +/* including simdjson/generic/ondemand/document-inl.h for icelake: #include "simdjson/generic/ondemand/document-inl.h" */ +/* begin file simdjson/generic/ondemand/document-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline document::document(ondemand::json_iterator &&_iter) noexcept + : iter{std::forward(_iter)} +{ + logger::log_start_value(iter, "document"); +} + +simdjson_inline document document::start(json_iterator &&iter) noexcept { + return document(std::forward(iter)); +} + +inline void document::rewind() noexcept { + iter.rewind(); +} + +inline std::string document::to_debug_string() noexcept { + return iter.to_string(); +} + +inline simdjson_result document::current_location() const noexcept { + return iter.current_location(); +} + +inline int32_t document::current_depth() const noexcept { + return iter.depth(); +} + +inline bool document::at_end() const noexcept { + return iter.at_end(); +} + + +inline bool document::is_alive() noexcept { + return iter.is_alive(); +} +simdjson_inline value_iterator document::resume_value_iterator() noexcept { + return value_iterator(&iter, 1, iter.root_position()); +} +simdjson_inline value_iterator document::get_root_value_iterator() noexcept { + return resume_value_iterator(); +} +simdjson_inline simdjson_result document::start_or_resume_object() noexcept { + if (iter.at_root()) { + return get_object(); + } else { + return object::resume(resume_value_iterator()); + } +} +simdjson_inline simdjson_result document::get_value() noexcept { + // Make sure we start any arrays or objects before returning, so that start_root_() + // gets called. + iter.assert_at_document_depth(); + switch (*iter.peek()) { + case '[': { + // The following lines check that the document ends with ]. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_array(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + case '{': { + // The following lines would check that the document ends with }. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_object(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + default: + // Unfortunately, scalar documents are a special case in simdjson and they cannot + // be safely converted to value instances. + return SCALAR_DOCUMENT_AS_VALUE; + } +} +simdjson_inline simdjson_result document::get_array() & noexcept { + auto value = get_root_value_iterator(); + return array::start_root(value); +} +simdjson_inline simdjson_result document::get_object() & noexcept { + auto value = get_root_value_iterator(); + return object::start_root(value); +} + +/** + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. We want to disallow trailing + * content. + * Thus, in several implementations below, we pass a 'true' parameter value to + * a get_root_value_iterator() method: this indicates that we disallow trailing content. + */ + +simdjson_inline simdjson_result document::get_uint64() noexcept { + return get_root_value_iterator().get_root_uint64(true); +} +simdjson_inline simdjson_result document::get_uint64_in_string() noexcept { + return get_root_value_iterator().get_root_uint64_in_string(true); +} +simdjson_inline simdjson_result document::get_int64() noexcept { + return get_root_value_iterator().get_root_int64(true); +} +simdjson_inline simdjson_result document::get_int64_in_string() noexcept { + return get_root_value_iterator().get_root_int64_in_string(true); +} +simdjson_inline simdjson_result document::get_double() noexcept { + return get_root_value_iterator().get_root_double(true); +} +simdjson_inline simdjson_result document::get_double_in_string() noexcept { + return get_root_value_iterator().get_root_double_in_string(true); +} +simdjson_inline simdjson_result document::get_string(bool allow_replacement) noexcept { + return get_root_value_iterator().get_root_string(true, allow_replacement); +} +simdjson_inline simdjson_result document::get_wobbly_string() noexcept { + return get_root_value_iterator().get_root_wobbly_string(true); +} +simdjson_inline simdjson_result document::get_raw_json_string() noexcept { + return get_root_value_iterator().get_root_raw_json_string(true); +} +simdjson_inline simdjson_result document::get_bool() noexcept { + return get_root_value_iterator().get_root_bool(true); +} +simdjson_inline simdjson_result document::is_null() noexcept { + return get_root_value_iterator().is_root_null(true); +} + +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_array(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_object(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_double(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_bool(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_value(); } + +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_double(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_uint64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_int64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_bool(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_value(); } + +template simdjson_inline error_code document::get(T &out) & noexcept { + return get().get(out); +} +template simdjson_inline error_code document::get(T &out) && noexcept { + return std::forward(*this).get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document::operator array() & noexcept(false) { return get_array(); } +simdjson_inline document::operator object() & noexcept(false) { return get_object(); } +simdjson_inline document::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document::operator double() noexcept(false) { return get_double(); } +simdjson_inline document::operator std::string_view() noexcept(false) { return get_string(false); } +simdjson_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); } +simdjson_inline document::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document::operator value() noexcept(false) { return get_value(); } + +#endif +simdjson_inline simdjson_result document::count_elements() & noexcept { + auto a = get_array(); + simdjson_result answer = a.count_elements(); + /* If there was an array, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::count_fields() & noexcept { + auto a = get_object(); + simdjson_result answer = a.count_fields(); + /* If there was an object, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::at(size_t index) & noexcept { + auto a = get_array(); + return a.at(index); +} +simdjson_inline simdjson_result document::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result document::end() & noexcept { + return {}; +} + +simdjson_inline simdjson_result document::find_field(std::string_view key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field(const char *key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field_unordered(std::string_view key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::find_field_unordered(const char *key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::operator[](std::string_view key) & noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result document::operator[](const char *key) & noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline error_code document::consume() noexcept { + auto error = iter.skip_child(0); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result document::raw_json() noexcept { + auto _iter = get_root_value_iterator(); + const uint8_t * starting_point{_iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter.unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result document::type() noexcept { + return get_root_value_iterator().type(); +} + +simdjson_inline simdjson_result document::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool document::is_negative() noexcept { + return get_root_value_iterator().is_root_negative(); +} + +simdjson_inline simdjson_result document::is_integer() noexcept { + return get_root_value_iterator().is_root_integer(true); +} + +simdjson_inline simdjson_result document::get_number_type() noexcept { + return get_root_value_iterator().get_root_number_type(true); +} + +simdjson_inline simdjson_result document::get_number() noexcept { + return get_root_value_iterator().get_root_number(true); +} + + +simdjson_inline simdjson_result document::raw_json_token() noexcept { + auto _iter = get_root_value_iterator(); + return std::string_view(reinterpret_cast(_iter.peek_start()), _iter.peek_start_length()); +} + +simdjson_inline simdjson_result document::at_pointer(std::string_view json_pointer) noexcept { + rewind(); // Rewind the document each time at_pointer is called + if (json_pointer.empty()) { + return this->get_value(); + } + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + icelake::ondemand::document &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base( + error + ) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template +simdjson_inline simdjson_result simdjson_result::get() & noexcept { + if (error()) { return error(); } + return first.get(); +} +template +simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first).get(); +} +template +simdjson_inline error_code simdjson_result::get(T &out) & noexcept { + if (error()) { return error(); } + return first.get(out); +} +template +simdjson_inline error_code simdjson_result::get(T &out) && noexcept { + if (error()) { return error(); } + return std::forward(first).get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() & noexcept = delete; +template<> simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first); +} +template<> simdjson_inline error_code simdjson_result::get(icelake::ondemand::document &out) & noexcept = delete; +template<> simdjson_inline error_code simdjson_result::get(icelake::ondemand::document &out) && noexcept { + if (error()) { return error(); } + out = std::forward(first); + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} + +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} + + +simdjson_inline bool simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} + +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} + +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} + +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} + + +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator icelake::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator icelake::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator icelake::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator icelake::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline bool simdjson_result::at_end() const noexcept { + if (error()) { return error(); } + return first.at_end(); +} + + +simdjson_inline int32_t simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline document_reference::document_reference() noexcept : doc{nullptr} {} +simdjson_inline document_reference::document_reference(document &d) noexcept : doc(&d) {} +simdjson_inline void document_reference::rewind() noexcept { doc->rewind(); } +simdjson_inline simdjson_result document_reference::get_array() & noexcept { return doc->get_array(); } +simdjson_inline simdjson_result document_reference::get_object() & noexcept { return doc->get_object(); } +/** + * The document_reference instances are used primarily/solely for streams of JSON + * documents. + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. + * + * However, for streams of JSON documents, we want to be able to start from + * "321" "321" "321" + * and parse it successfully as a stream of JSON documents, calling get_uint64_in_string() + * successfully each time. + * + * To achieve this result, we pass a 'false' to a get_root_value_iterator() method: + * this indicates that we allow trailing content. + */ +simdjson_inline simdjson_result document_reference::get_uint64() noexcept { return doc->get_root_value_iterator().get_root_uint64(false); } +simdjson_inline simdjson_result document_reference::get_uint64_in_string() noexcept { return doc->get_root_value_iterator().get_root_uint64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_int64() noexcept { return doc->get_root_value_iterator().get_root_int64(false); } +simdjson_inline simdjson_result document_reference::get_int64_in_string() noexcept { return doc->get_root_value_iterator().get_root_int64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_double() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_double_in_string() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_string(bool allow_replacement) noexcept { return doc->get_root_value_iterator().get_root_string(false, allow_replacement); } +simdjson_inline simdjson_result document_reference::get_wobbly_string() noexcept { return doc->get_root_value_iterator().get_root_wobbly_string(false); } +simdjson_inline simdjson_result document_reference::get_raw_json_string() noexcept { return doc->get_root_value_iterator().get_root_raw_json_string(false); } +simdjson_inline simdjson_result document_reference::get_bool() noexcept { return doc->get_root_value_iterator().get_root_bool(false); } +simdjson_inline simdjson_result document_reference::get_value() noexcept { return doc->get_value(); } +simdjson_inline simdjson_result document_reference::is_null() noexcept { return doc->get_root_value_iterator().is_root_null(false); } + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document_reference::operator array() & noexcept(false) { return array(*doc); } +simdjson_inline document_reference::operator object() & noexcept(false) { return object(*doc); } +simdjson_inline document_reference::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document_reference::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document_reference::operator double() noexcept(false) { return get_double(); } +simdjson_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); } +simdjson_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); } +simdjson_inline document_reference::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document_reference::operator value() noexcept(false) { return value(*doc); } +#endif +simdjson_inline simdjson_result document_reference::count_elements() & noexcept { return doc->count_elements(); } +simdjson_inline simdjson_result document_reference::count_fields() & noexcept { return doc->count_fields(); } +simdjson_inline simdjson_result document_reference::at(size_t index) & noexcept { return doc->at(index); } +simdjson_inline simdjson_result document_reference::begin() & noexcept { return doc->begin(); } +simdjson_inline simdjson_result document_reference::end() & noexcept { return doc->end(); } +simdjson_inline simdjson_result document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::type() noexcept { return doc->type(); } +simdjson_inline simdjson_result document_reference::is_scalar() noexcept { return doc->is_scalar(); } +simdjson_inline simdjson_result document_reference::current_location() noexcept { return doc->current_location(); } +simdjson_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); } +simdjson_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); } +simdjson_inline simdjson_result document_reference::is_integer() noexcept { return doc->get_root_value_iterator().is_root_integer(false); } +simdjson_inline simdjson_result document_reference::get_number_type() noexcept { return doc->get_root_value_iterator().get_root_number_type(false); } +simdjson_inline simdjson_result document_reference::get_number() noexcept { return doc->get_root_value_iterator().get_root_number(false); } +simdjson_inline simdjson_result document_reference::raw_json_token() noexcept { return doc->raw_json_token(); } +simdjson_inline simdjson_result document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); } +simdjson_inline simdjson_result document_reference::raw_json() noexcept { return doc->raw_json();} +simdjson_inline document_reference::operator document&() const noexcept { return *doc; } + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + + + +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(icelake::ondemand::document_reference value, error_code error) + noexcept : implementation_simdjson_result_base(std::forward(value), error) {} + + +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator icelake::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator icelake::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator icelake::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator icelake::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H +/* end file simdjson/generic/ondemand/document-inl.h for icelake */ +/* including simdjson/generic/ondemand/document_stream-inl.h for icelake: #include "simdjson/generic/ondemand/document_stream-inl.h" */ +/* begin file simdjson/generic/ondemand/document_stream-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace icelake { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void stage1_worker::finish() { + // After calling "run" someone would call finish() to wait + // for the end of the processing. + // This function will wait until either the thread has done + // the processing or, else, the destructor has been called. + std::unique_lock lock(locking_mutex); + cond_var.wait(lock, [this]{return has_work == false;}); +} + +inline stage1_worker::~stage1_worker() { + // The thread may never outlive the stage1_worker instance + // and will always be stopped/joined before the stage1_worker + // instance is gone. + stop_thread(); +} + +inline void stage1_worker::start_thread() { + std::unique_lock lock(locking_mutex); + if(thread.joinable()) { + return; // This should never happen but we never want to create more than one thread. + } + thread = std::thread([this]{ + while(true) { + std::unique_lock thread_lock(locking_mutex); + // We wait for either "run" or "stop_thread" to be called. + cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); + // If, for some reason, the stop_thread() method was called (i.e., the + // destructor of stage1_worker is called, then we want to immediately destroy + // the thread (and not do any more processing). + if(!can_work) { + break; + } + this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, + this->_next_batch_start); + this->has_work = false; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify "finish" + thread_lock.unlock(); + } + } + ); +} + + +inline void stage1_worker::stop_thread() { + std::unique_lock lock(locking_mutex); + // We have to make sure that all locks can be released. + can_work = false; + has_work = false; + cond_var.notify_all(); + lock.unlock(); + if(thread.joinable()) { + thread.join(); + } +} + +inline void stage1_worker::run(document_stream * ds, parser * stage1, size_t next_batch_start) { + std::unique_lock lock(locking_mutex); + owner = ds; + _next_batch_start = next_batch_start; + stage1_thread_parser = stage1; + has_work = true; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify the thread lock that we have work + lock.unlock(); +} + +#endif // SIMDJSON_THREADS_ENABLED + +simdjson_inline document_stream::document_stream( + ondemand::parser &_parser, + const uint8_t *_buf, + size_t _len, + size_t _batch_size, + bool _allow_comma_separated +) noexcept + : parser{&_parser}, + buf{_buf}, + len{_len}, + batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, + allow_comma_separated{_allow_comma_separated}, + error{SUCCESS} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change + #endif +{ +#ifdef SIMDJSON_THREADS_ENABLED + if(worker.get() == nullptr) { + error = MEMALLOC; + } +#endif +} + +simdjson_inline document_stream::document_stream() noexcept + : parser{nullptr}, + buf{nullptr}, + len{0}, + batch_size{0}, + allow_comma_separated{false}, + error{UNINITIALIZED} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(false) + #endif +{ +} + +simdjson_inline document_stream::~document_stream() noexcept +{ + #ifdef SIMDJSON_THREADS_ENABLED + worker.reset(); + #endif +} + +inline size_t document_stream::size_in_bytes() const noexcept { + return len; +} + +inline size_t document_stream::truncated_bytes() const noexcept { + if(error == CAPACITY) { return len - batch_start; } + return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; +} + +simdjson_inline document_stream::iterator::iterator() noexcept + : stream{nullptr}, finished{true} { +} + +simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept + : stream{_stream}, finished{is_end} { +} + +simdjson_inline simdjson_result document_stream::iterator::operator*() noexcept { + //if(stream->error) { return stream->error; } + return simdjson_result(stream->doc, stream->error); +} + +simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { + // If there is an error, then we want the iterator + // to be finished, no matter what. (E.g., we do not + // keep generating documents with errors, or go beyond + // a document with errors.) + // + // Users do not have to call "operator*()" when they use operator++, + // so we need to end the stream in the operator++ function. + // + // Note that setting finished = true is essential otherwise + // we would enter an infinite loop. + if (stream->error) { finished = true; } + // Note that stream->error() is guarded against error conditions + // (it will immediately return if stream->error casts to false). + // In effect, this next function does nothing when (stream->error) + // is true (hence the risk of an infinite loop). + stream->next(); + // If that was the last document, we're finished. + // It is the only type of error we do not want to appear + // in operator*. + if (stream->error == EMPTY) { finished = true; } + // If we had any other kind of error (not EMPTY) then we want + // to pass it along to the operator* and we cannot mark the result + // as "finished" just yet. + return *this; +} + +simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { + return finished != other.finished; +} + +simdjson_inline document_stream::iterator document_stream::begin() noexcept { + start(); + // If there are no documents, we're finished. + return iterator(this, error == EMPTY); +} + +simdjson_inline document_stream::iterator document_stream::end() noexcept { + return iterator(this, true); +} + +inline void document_stream::start() noexcept { + if (error) { return; } + error = parser->allocate(batch_size); + if (error) { return; } + // Always run the first stage 1 parse immediately + batch_start = 0; + error = run_stage1(*parser, batch_start); + while(error == EMPTY) { + // In exceptional cases, we may start with an empty block + batch_start = next_batch_start(); + if (batch_start >= len) { return; } + error = run_stage1(*parser, batch_start); + } + if (error) { return; } + doc_index = batch_start; + doc = document(json_iterator(&buf[batch_start], parser)); + doc.iter._streaming = true; + + #ifdef SIMDJSON_THREADS_ENABLED + if (use_thread && next_batch_start() < len) { + // Kick off the first thread on next batch if needed + error = stage1_thread_parser.allocate(batch_size); + if (error) { return; } + worker->start_thread(); + start_stage1_thread(); + if (error) { return; } + } + #endif // SIMDJSON_THREADS_ENABLED +} + +inline void document_stream::next() noexcept { + // We always enter at once once in an error condition. + if (error) { return; } + next_document(); + if (error) { return; } + auto cur_struct_index = doc.iter._root - parser->implementation->structural_indexes.get(); + doc_index = batch_start + parser->implementation->structural_indexes[cur_struct_index]; + + // Check if at end of structural indexes (i.e. at end of batch) + if(cur_struct_index >= static_cast(parser->implementation->n_structural_indexes)) { + error = EMPTY; + // Load another batch (if available) + while (error == EMPTY) { + batch_start = next_batch_start(); + if (batch_start >= len) { break; } + #ifdef SIMDJSON_THREADS_ENABLED + if(use_thread) { + load_from_stage1_thread(); + } else { + error = run_stage1(*parser, batch_start); + } + #else + error = run_stage1(*parser, batch_start); + #endif + /** + * Whenever we move to another window, we need to update all pointers to make + * it appear as if the input buffer started at the beginning of the window. + * + * Take this input: + * + * {"z":5} {"1":1,"2":2,"4":4} [7, 10, 9] [15, 11, 12, 13] [154, 110, 112, 1311] + * + * Say you process the following window... + * + * '{"z":5} {"1":1,"2":2,"4":4} [7, 10, 9]' + * + * When you do so, the json_iterator has a pointer at the beginning of the memory region + * (pointing at the beginning of '{"z"...'. + * + * When you move to the window that starts at... + * + * '[7, 10, 9] [15, 11, 12, 13] ... + * + * then it is not sufficient to just run stage 1. You also need to re-anchor the + * json_iterator so that it believes we are starting at '[7, 10, 9]...'. + * + * Under the DOM front-end, this gets done automatically because the parser owns + * the pointer the data, and when you call stage1 and then stage2 on the same + * parser, then stage2 will run on the pointer acquired by stage1. + * + * That is, stage1 calls "this->buf = _buf" so the parser remembers the buffer that + * we used. But json_iterator has no callback when stage1 is called on the parser. + * In fact, I think that the parser is unaware of json_iterator. + * + * + * So we need to re-anchor the json_iterator after each call to stage 1 so that + * all of the pointers are in sync. + */ + doc.iter = json_iterator(&buf[batch_start], parser); + doc.iter._streaming = true; + /** + * End of resync. + */ + + if (error) { continue; } // If the error was EMPTY, we may want to load another batch. + doc_index = batch_start; + } + } +} + +inline void document_stream::next_document() noexcept { + // Go to next place where depth=0 (document depth) + error = doc.iter.skip_child(0); + if (error) { return; } + // Always set depth=1 at the start of document + doc.iter._depth = 1; + // consume comma if comma separated is allowed + if (allow_comma_separated) { doc.iter.consume_character(','); } + // Resets the string buffer at the beginning, thus invalidating the strings. + doc.iter._string_buf_loc = parser->string_buf.get(); + doc.iter._root = doc.iter.position(); +} + +inline size_t document_stream::next_batch_start() const noexcept { + return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; +} + +inline error_code document_stream::run_stage1(ondemand::parser &p, size_t _batch_start) noexcept { + // This code only updates the structural index in the parser, it does not update any json_iterator + // instance. + size_t remaining = len - _batch_start; + if (remaining <= batch_size) { + return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); + } else { + return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); + } +} + +simdjson_inline size_t document_stream::iterator::current_index() const noexcept { + return stream->doc_index; +} + +simdjson_inline std::string_view document_stream::iterator::source() const noexcept { + auto depth = stream->doc.iter.depth(); + auto cur_struct_index = stream->doc.iter._root - stream->parser->implementation->structural_indexes.get(); + + // If at root, process the first token to determine if scalar value + if (stream->doc.iter.at_root()) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': // Depth=1 already at start of document + break; + case '}': case ']': + depth--; + break; + default: // Scalar value document + // TODO: Remove any trailing whitespaces + // This returns a string spanning from start of value to the beginning of the next document (excluded) + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[++cur_struct_index] - current_index() - 1); + } + cur_struct_index++; + } + + while (cur_struct_index <= static_cast(stream->parser->implementation->n_structural_indexes)) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': + depth++; + break; + case '}': case ']': + depth--; + break; + } + if (depth == 0) { break; } + cur_struct_index++; + } + + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);; +} + +inline error_code document_stream::iterator::error() const noexcept { + return stream->error; +} + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void document_stream::load_from_stage1_thread() noexcept { + worker->finish(); + // Swap to the parser that was loaded up in the thread. Make sure the parser has + // enough memory to swap to, as well. + std::swap(stage1_thread_parser,*parser); + error = stage1_thread_error; + if (error) { return; } + + // If there's anything left, start the stage 1 thread! + if (next_batch_start() < len) { + start_stage1_thread(); + } +} + +inline void document_stream::start_stage1_thread() noexcept { + // we call the thread on a lambda that will update + // this->stage1_thread_error + // there is only one thread that may write to this value + // TODO this is NOT exception-safe. + this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error + size_t _next_batch_start = this->next_batch_start(); + + worker->run(this, & this->stage1_thread_parser, _next_batch_start); +} + +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result::simdjson_result( + icelake::ondemand::document_stream &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} + +} + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H +/* end file simdjson/generic/ondemand/document_stream-inl.h for icelake */ +/* including simdjson/generic/ondemand/field-inl.h for icelake: #include "simdjson/generic/ondemand/field-inl.h" */ +/* begin file simdjson/generic/ondemand/field-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +// clang 6 doesn't think the default constructor can be noexcept, so we make it explicit +simdjson_inline field::field() noexcept : std::pair() {} + +simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept + : std::pair(key, std::forward(value)) +{ +} + +simdjson_inline simdjson_result field::start(value_iterator &parent_iter) noexcept { + raw_json_string key; + SIMDJSON_TRY( parent_iter.field_key().get(key) ); + SIMDJSON_TRY( parent_iter.field_value() ); + return field::start(parent_iter, key); +} + +simdjson_inline simdjson_result field::start(const value_iterator &parent_iter, raw_json_string key) noexcept { + return field(key, parent_iter.child()); +} + +simdjson_inline simdjson_warn_unused simdjson_result field::unescaped_key(bool allow_replacement) noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us. + simdjson_result answer = first.unescape(second.iter.json_iter(), allow_replacement); + first.consume(); + return answer; +} + +simdjson_inline raw_json_string field::key() const noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us. + return first; +} + +simdjson_inline value &field::value() & noexcept { + return second; +} + +simdjson_inline value field::value() && noexcept { + return std::forward(*this).second; +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + icelake::ondemand::field &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::key() noexcept { + if (error()) { return error(); } + return first.key(); +} +simdjson_inline simdjson_result simdjson_result::unescaped_key(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.unescaped_key(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::value() noexcept { + if (error()) { return error(); } + return std::move(first.value()); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H +/* end file simdjson/generic/ondemand/field-inl.h for icelake */ +/* including simdjson/generic/ondemand/json_iterator-inl.h for icelake: #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/json_iterator-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline json_iterator::json_iterator(json_iterator &&other) noexcept + : token(std::forward(other.token)), + parser{other.parser}, + _string_buf_loc{other._string_buf_loc}, + error{other.error}, + _depth{other._depth}, + _root{other._root}, + _streaming{other._streaming} +{ + other.parser = nullptr; +} +simdjson_inline json_iterator &json_iterator::operator=(json_iterator &&other) noexcept { + token = other.token; + parser = other.parser; + _string_buf_loc = other._string_buf_loc; + error = other.error; + _depth = other._depth; + _root = other._root; + _streaming = other._streaming; + other.parser = nullptr; + return *this; +} + +simdjson_inline json_iterator::json_iterator(const uint8_t *buf, ondemand::parser *_parser) noexcept + : token(buf, &_parser->implementation->structural_indexes[0]), + parser{_parser}, + _string_buf_loc{parser->string_buf.get()}, + _depth{1}, + _root{parser->implementation->structural_indexes.get()}, + _streaming{false} + +{ + logger::log_headers(); +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif +} + +inline void json_iterator::rewind() noexcept { + token.set_position( root_position() ); + logger::log_headers(); // We start again + _string_buf_loc = parser->string_buf.get(); + _depth = 1; +} + +inline bool json_iterator::balanced() const noexcept { + token_iterator ti(token); + int32_t count{0}; + ti.set_position( root_position() ); + while(ti.peek() <= peek_last()) { + switch (*ti.return_current_and_advance()) + { + case '[': case '{': + count++; + break; + case ']': case '}': + count--; + break; + default: + break; + } + } + return count == 0; +} + + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and parent_depth, which is a desired effect. The warning does not show up if the +// skip_child() function is not marked inline). +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept { + if (depth() <= parent_depth) { return SUCCESS; } + switch (*return_current_and_advance()) { + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + + // For the first open array/object in a value, we've already incremented depth, so keep it the same + // We never stop at colon, but if we did, it wouldn't affect depth + case '[': case '{': case ':': + logger::log_start_value(*this, "skip"); + break; + // If there is a comma, we have just finished a value in an array/object, and need to get back in + case ',': + logger::log_value(*this, "skip"); + break; + // ] or } means we just finished a value and need to jump out of the array/object + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } +#if SIMDJSON_CHECK_EOF + // If there are no more tokens, the parent is incomplete. + if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + break; + case '"': + if(*peek() == ':') { + // We are at a key!!! + // This might happen if you just started an object and you skip it immediately. + // Performance note: it would be nice to get rid of this check as it is somewhat + // expensive. + // https://github.com/simdjson/simdjson/issues/1742 + logger::log_value(*this, "key"); + return_current_and_advance(); // eat up the ':' + break; // important!!! + } + simdjson_fallthrough; + // Anything else must be a scalar value + default: + // For the first scalar, we will have incremented depth already, so we decrement it here. + logger::log_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + } + + // Now that we've considered the first value, we only increment/decrement for arrays/objects + while (position() < end_position()) { + switch (*return_current_and_advance()) { + case '[': case '{': + logger::log_start_value(*this, "skip"); + _depth++; + break; + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + default: + logger::log_value(*this, "skip", ""); + break; + } + } + + return report_error(TAPE_ERROR, "not enough close braces"); +} + +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool json_iterator::at_root() const noexcept { + return position() == root_position(); +} + +simdjson_inline bool json_iterator::is_single_token() const noexcept { + return parser->implementation->n_structural_indexes == 1; +} + +simdjson_inline bool json_iterator::streaming() const noexcept { + return _streaming; +} + +simdjson_inline token_position json_iterator::root_position() const noexcept { + return _root; +} + +simdjson_inline void json_iterator::assert_at_document_depth() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +} + +simdjson_inline void json_iterator::assert_at_root() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + // Under Visual Studio, the next SIMDJSON_ASSUME fails with: the argument + // has side effects that will be discarded. + SIMDJSON_ASSUME( token.position() == _root ); +#endif +} + +simdjson_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept { + assert_valid_position(token._position + required_tokens - 1); +} + +simdjson_inline void json_iterator::assert_valid_position(token_position position) const noexcept { +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME( position >= &parser->implementation->structural_indexes[0] ); + SIMDJSON_ASSUME( position < &parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] ); +#endif +} + +simdjson_inline bool json_iterator::at_end() const noexcept { + return position() == end_position(); +} +simdjson_inline token_position json_iterator::end_position() const noexcept { + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + return &parser->implementation->structural_indexes[n_structural_indexes]; +} + +inline std::string json_iterator::to_string() const noexcept { + if( !is_alive() ) { return "dead json_iterator instance"; } + const char * current_structural = reinterpret_cast(token.peek()); + return std::string("json_iterator [ depth : ") + std::to_string(_depth) + + std::string(", structural : '") + std::string(current_structural,1) + + std::string("', offset : ") + std::to_string(token.current_offset()) + + std::string("', error : ") + error_message(error) + + std::string(" ]"); +} + +inline simdjson_result json_iterator::current_location() const noexcept { + if (!is_alive()) { // Unrecoverable error + if (!at_root()) { + return reinterpret_cast(token.peek(-1)); + } else { + return reinterpret_cast(token.peek()); + } + } + if (at_end()) { + return OUT_OF_BOUNDS; + } + return reinterpret_cast(token.peek()); +} + +simdjson_inline bool json_iterator::is_alive() const noexcept { + return parser; +} + +simdjson_inline void json_iterator::abandon() noexcept { + parser = nullptr; + _depth = 0; +} + +simdjson_inline const uint8_t *json_iterator::return_current_and_advance() noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif // SIMDJSON_CHECK_EOF + return token.return_current_and_advance(); +} + +simdjson_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept { + // deliberately done without safety guard: + return token.peek(); +} + +simdjson_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // SIMDJSON_CHECK_EOF + return token.peek(delta); +} + +simdjson_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // #if SIMDJSON_CHECK_EOF + return token.peek_length(delta); +} + +simdjson_inline const uint8_t *json_iterator::peek(token_position position) const noexcept { + // todo: currently we require end-of-string buffering, but the following + // assert_valid_position should be turned on if/when we lift that condition. + // assert_valid_position(position); + // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF + // is ON by default, we have no choice but to disable it for real with a comment. + return token.peek(position); +} + +simdjson_inline uint32_t json_iterator::peek_length(token_position position) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_valid_position(position); +#endif // SIMDJSON_CHECK_EOF + return token.peek_length(position); +} + +simdjson_inline token_position json_iterator::last_position() const noexcept { + // The following line fails under some compilers... + // SIMDJSON_ASSUME(parser->implementation->n_structural_indexes > 0); + // since it has side-effects. + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + SIMDJSON_ASSUME(n_structural_indexes > 0); + return &parser->implementation->structural_indexes[n_structural_indexes - 1]; +} +simdjson_inline const uint8_t *json_iterator::peek_last() const noexcept { + return token.peek(last_position()); +} + +simdjson_inline void json_iterator::ascend_to(depth_t parent_depth) noexcept { + SIMDJSON_ASSUME(parent_depth >= 0 && parent_depth < INT32_MAX - 1); + SIMDJSON_ASSUME(_depth == parent_depth + 1); + _depth = parent_depth; +} + +simdjson_inline void json_iterator::descend_to(depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); + _depth = child_depth; +} + +simdjson_inline depth_t json_iterator::depth() const noexcept { + return _depth; +} + +simdjson_inline uint8_t *&json_iterator::string_buf_loc() noexcept { + return _string_buf_loc; +} + +simdjson_inline error_code json_iterator::report_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error != SUCCESS && _error != UNINITIALIZED && _error != INCORRECT_TYPE && _error != NO_SUCH_FIELD); + logger::log_error(*this, message); + error = _error; + return error; +} + +simdjson_inline token_position json_iterator::position() const noexcept { + return token.position(); +} + +simdjson_inline simdjson_result json_iterator::unescape(raw_json_string in, bool allow_replacement) noexcept { + return parser->unescape(in, _string_buf_loc, allow_replacement); +} + +simdjson_inline simdjson_result json_iterator::unescape_wobbly(raw_json_string in) noexcept { + return parser->unescape_wobbly(in, _string_buf_loc); +} + +simdjson_inline void json_iterator::reenter_child(token_position position, depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); +#if SIMDJSON_DEVELOPMENT_CHECKS +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME(size_t(child_depth) < parser->max_depth()); + SIMDJSON_ASSUME(position >= parser->start_positions[child_depth]); +#endif +#endif + token.set_position(position); + _depth = child_depth; +} + +simdjson_inline error_code json_iterator::consume_character(char c) noexcept { + if (*peek() == c) { + return_current_and_advance(); + return SUCCESS; + } + return TAPE_ERROR; +} + +#if SIMDJSON_DEVELOPMENT_CHECKS + +simdjson_inline token_position json_iterator::start_position(depth_t depth) const noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + return size_t(depth) < parser->max_depth() ? parser->start_positions[depth] : 0; +} + +simdjson_inline void json_iterator::set_start_position(depth_t depth, token_position position) noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + if(size_t(depth) < parser->max_depth()) { parser->start_positions[depth] = position; } +} + +#endif + + +simdjson_inline error_code json_iterator::optional_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error == INCORRECT_TYPE || _error == NO_SUCH_FIELD); + logger::log_error(*this, message); + return _error; +} + + +simdjson_warn_unused simdjson_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept { + // This function is not expected to be called in performance-sensitive settings. + // Let us guard against silly cases: + if((N < max_len) || (N == 0)) { return false; } + // Copy to the buffer. + std::memcpy(tmpbuf, json, max_len); + if(N > max_len) { // We pad whatever remains with ' '. + std::memset(tmpbuf + max_len, ' ', N - max_len); + } + return true; +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(icelake::ondemand::json_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/json_iterator-inl.h for icelake */ +/* including simdjson/generic/ondemand/json_type-inl.h for icelake: #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* begin file simdjson/generic/ondemand/json_type-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept { + switch (type) { + case json_type::array: out << "array"; break; + case json_type::object: out << "object"; break; + case json_type::number: out << "number"; break; + case json_type::string: out << "string"; break; + case json_type::boolean: out << "boolean"; break; + case json_type::null: out << "null"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false) { + return out << type.value(); +} +#endif + + + +simdjson_inline number_type number::get_number_type() const noexcept { + return type; +} + +simdjson_inline bool number::is_uint64() const noexcept { + return get_number_type() == number_type::unsigned_integer; +} + +simdjson_inline uint64_t number::get_uint64() const noexcept { + return payload.unsigned_integer; +} + +simdjson_inline number::operator uint64_t() const noexcept { + return get_uint64(); +} + + +simdjson_inline bool number::is_int64() const noexcept { + return get_number_type() == number_type::signed_integer; +} + +simdjson_inline int64_t number::get_int64() const noexcept { + return payload.signed_integer; +} + +simdjson_inline number::operator int64_t() const noexcept { + return get_int64(); +} + +simdjson_inline bool number::is_double() const noexcept { + return get_number_type() == number_type::floating_point_number; +} + +simdjson_inline double number::get_double() const noexcept { + return payload.floating_point_number; +} + +simdjson_inline number::operator double() const noexcept { + return get_double(); +} + +simdjson_inline double number::as_double() const noexcept { + if(is_double()) { + return payload.floating_point_number; + } + if(is_int64()) { + return double(payload.signed_integer); + } + return double(payload.unsigned_integer); +} + +simdjson_inline void number::append_s64(int64_t value) noexcept { + payload.signed_integer = value; + type = number_type::signed_integer; +} + +simdjson_inline void number::append_u64(uint64_t value) noexcept { + payload.unsigned_integer = value; + type = number_type::unsigned_integer; +} + +simdjson_inline void number::append_double(double value) noexcept { + payload.floating_point_number = value; + type = number_type::floating_point_number; +} + +simdjson_inline void number::skip_double() noexcept { + type = number_type::floating_point_number; +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(icelake::ondemand::json_type &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H +/* end file simdjson/generic/ondemand/json_type-inl.h for icelake */ +/* including simdjson/generic/ondemand/logger-inl.h for icelake: #include "simdjson/generic/ondemand/logger-inl.h" */ +/* begin file simdjson/generic/ondemand/logger-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace icelake { +namespace ondemand { +namespace logger { + +static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +static constexpr const int LOG_EVENT_LEN = 20; +static constexpr const int LOG_BUFFER_LEN = 30; +static constexpr const int LOG_SMALL_BUFFER_LEN = 10; +static int log_depth = 0; // Not threadsafe. Log only. + +// Helper to turn unprintable or newline characters into spaces +static inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; + } +} + +template +static inline std::string string_format(const std::string& format, const Args&... args) +{ + SIMDJSON_PUSH_DISABLE_ALL_WARNINGS + int size_s = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; + auto size = static_cast(size_s); + if (size <= 0) return std::string(); + std::unique_ptr buf(new char[size]); + std::snprintf(buf.get(), size, format.c_str(), args...); + SIMDJSON_POP_DISABLE_WARNINGS + return std::string(buf.get(), buf.get() + size - 1); +} + +static inline log_level get_log_level_from_env() +{ + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + char *lvl = getenv("SIMDJSON_LOG_LEVEL"); + SIMDJSON_POP_DISABLE_WARNINGS + if (lvl && simdjson_strcasecmp(lvl, "ERROR") == 0) { return log_level::error; } + return log_level::info; +} + +static inline log_level log_threshold() +{ + static log_level threshold = get_log_level_from_env(); + return threshold; +} + +static inline bool should_log(log_level level) +{ + return level >= log_threshold(); +} + +inline void log_event(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} + +inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "", type, detail, log_level::info); +} +inline void log_value(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} + +inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "+", type, detail, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} +inline void log_start_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_line(iter, "+", type, "", delta, depth_delta, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} + +inline void log_end_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + if (LOG_ENABLED) { log_depth--; } + log_line(iter, "-", type, "", delta, depth_delta, log_level::info); +} + +inline void log_error(const json_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_line(iter, "ERROR: ", error, detail, delta, depth_delta, log_level::error); +} +inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail) noexcept { + log_line(iter, index, depth, "ERROR: ", error, detail, log_level::error); +} + +inline void log_event(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_event(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_value(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_value(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_start_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_start_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_end_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_end_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_error(const value_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_error(iter.json_iter(), error, detail, delta, depth_delta); +} + +inline void log_headers() noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(log_level::info))) { + // Technically a static variable is not thread-safe, but if you are using threads and logging... well... + static bool displayed_hint{false}; + log_depth = 0; + printf("\n"); + if (!displayed_hint) { + // We only print this helpful header once. + printf("# Logging provides the depth and position of the iterator user-visible steps:\n"); + printf("# +array says 'this is where we were when we discovered the start array'\n"); + printf( + "# -array says 'this is where we were when we ended the array'\n"); + printf("# skip says 'this is a structural or value I am skipping'\n"); + printf("# +/-skip says 'this is a start/end array or object I am skipping'\n"); + printf("#\n"); + printf("# The indentation of the terms (array, string,...) indicates the depth,\n"); + printf("# in addition to the depth being displayed.\n"); + printf("#\n"); + printf("# Every token in the document has a single depth determined by the tokens before it,\n"); + printf("# and is not affected by what the token actually is.\n"); + printf("#\n"); + printf("# Not all structural elements are presented as tokens in the logs.\n"); + printf("#\n"); + printf("# We never give control to the user within an empty array or an empty object.\n"); + printf("#\n"); + printf("# Inside an array, having a depth greater than the array's depth means that\n"); + printf("# we are pointing inside a value.\n"); + printf("# Having a depth equal to the array means that we are pointing right before a value.\n"); + printf("# Having a depth smaller than the array means that we have moved beyond the array.\n"); + displayed_hint = true; + } + printf("\n"); + printf("| %-*s ", LOG_EVENT_LEN, "Event"); + printf("| %-*s ", LOG_BUFFER_LEN, "Buffer"); + printf("| %-*s ", LOG_SMALL_BUFFER_LEN, "Next"); + // printf("| %-*s ", 5, "Next#"); + printf("| %-*s ", 5, "Depth"); + printf("| Detail "); + printf("|\n"); + + printf("|%.*s", LOG_EVENT_LEN + 2, DASHES); + printf("|%.*s", LOG_BUFFER_LEN + 2, DASHES); + printf("|%.*s", LOG_SMALL_BUFFER_LEN + 2, DASHES); + // printf("|%.*s", 5+2, DASHES); + printf("|%.*s", 5 + 2, DASHES); + printf("|--------"); + printf("|\n"); + fflush(stdout); + } + } +} + +template +inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, log_level level, Args&&... args) noexcept { + log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail, level, std::forward(args)...); +} + +template +inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, log_level level, Args&&... args) noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(level))) { + const int indent = depth * 2; + const auto buf = iter.token.buf; + auto msg = string_format(title, std::forward(args)...); + printf("| %*s%s%-*s ", indent, "", title_prefix, + LOG_EVENT_LEN - indent - int(strlen(title_prefix)), msg.c_str()); + { + // Print the current structural. + printf("| "); + // Before we begin, the index might point right before the document. + // This could be unsafe, see https://github.com/simdjson/simdjson/discussions/1938 + if (index < iter._root) { + printf("%*s", LOG_BUFFER_LEN, ""); + } else { + auto current_structural = &buf[*index]; + for (int i = 0; i < LOG_BUFFER_LEN; i++) { + printf("%c", printable_char(current_structural[i])); + } + } + printf(" "); + } + { + // Print the next structural. + printf("| "); + auto next_structural = &buf[*(index + 1)]; + for (int i = 0; i < LOG_SMALL_BUFFER_LEN; i++) { + printf("%c", printable_char(next_structural[i])); + } + printf(" "); + } + // printf("| %5u ", *(index+1)); + printf("| %5i ", depth); + printf("| %6.*s ", int(detail.size()), detail.data()); + printf("|\n"); + fflush(stdout); + } + } +} + +} // namespace logger +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H +/* end file simdjson/generic/ondemand/logger-inl.h for icelake */ +/* including simdjson/generic/ondemand/object-inl.h for icelake: #include "simdjson/generic/ondemand/object-inl.h" */ +/* begin file simdjson/generic/ondemand/object-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) & noexcept { + return find_field_unordered(key); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) && noexcept { + return std::forward(*this).find_field_unordered(key); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} + +simdjson_inline simdjson_result object::start(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_object().error() ); + return object(iter); +} +simdjson_inline simdjson_result object::start_root(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_root_object().error() ); + return object(iter); +} +simdjson_inline error_code object::consume() noexcept { + if(iter.is_at_key()) { + /** + * whenever you are pointing at a key, calling skip_child() is + * unsafe because you will hit a string and you will assume that + * it is string value, and this mistake will lead you to make bad + * depth computation. + */ + /** + * We want to 'consume' the key. We could really + * just do _json_iter->return_current_and_advance(); at this + * point, but, for clarity, we will use the high-level API to + * eat the key. We assume that the compiler optimizes away + * most of the work. + */ + simdjson_unused raw_json_string actual_key; + auto error = iter.field_key().get(actual_key); + if (error) { iter.abandon(); return error; }; + // Let us move to the value while we are at it. + if ((error = iter.field_value())) { iter.abandon(); return error; } + } + auto error_skip = iter.json_iter().skip_child(iter.depth()-1); + if(error_skip) { iter.abandon(); } + return error_skip; +} + +simdjson_inline simdjson_result object::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + const uint8_t * final_point{iter._json_iter->peek()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result object::started(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.started_object().error() ); + return object(iter); +} + +simdjson_inline object object::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline object::object(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result object::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return object_iterator(iter); +} +simdjson_inline simdjson_result object::end() noexcept { + return object_iterator(iter); +} + +inline simdjson_result object::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; + + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); + } + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = find_field(unescaped); // Take note find_field does not unescape keys when matching + } else { + child = find_field(key); + } + if(child.error()) { + return child; // we do not continue if there was an error + } + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); + } + return child; +} + +simdjson_inline simdjson_result object::count_fields() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the object after counting the number of elements. + iter.reset_object(); + return count; +} + +simdjson_inline simdjson_result object::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_object().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +simdjson_inline simdjson_result object::reset() & noexcept { + return iter.reset_object(); +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(icelake::ondemand::object &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first)[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +inline simdjson_result simdjson_result::reset() noexcept { + if (error()) { return error(); } + return first.reset(); +} + +inline simdjson_result simdjson_result::is_empty() noexcept { + if (error()) { return error(); } + return first.is_empty(); +} + +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H +/* end file simdjson/generic/ondemand/object-inl.h for icelake */ +/* including simdjson/generic/ondemand/object_iterator-inl.h for icelake: #include "simdjson/generic/ondemand/object_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/object_iterator-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +// +// object_iterator +// + +simdjson_inline object_iterator::object_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result object_iterator::operator*() noexcept { + error_code error = iter.error(); + if (error) { iter.abandon(); return error; } + auto result = field::start(iter); + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (result.error()) { iter.abandon(); } + return result; +} +simdjson_inline bool object_iterator::operator==(const object_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool object_iterator::operator!=(const object_iterator &) const noexcept { + return iter.is_open(); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline object_iterator &object_iterator::operator++() noexcept { + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (!iter.is_open()) { return *this; } // Iterator will be released if there is an error + + simdjson_unused error_code error; + if ((error = iter.skip_child() )) { return *this; } + + simdjson_unused bool has_value; + if ((error = iter.has_next_field().get(has_value) )) { return *this; }; + return *this; +} +SIMDJSON_POP_DISABLE_WARNINGS + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter.depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the object is first found and the iterator is just past the {. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the , or } before the next value. In this state, +// depth == iter.depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter.depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter.depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the object iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet field may be missing or not be an +// object--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter.depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between fields, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter.depth == depth, and at_start == false. +// +// Errors that occur while reading a field to give to the user (such as when the key is not a +// string or the field is missing a colon) are yielded immediately. Depth is then decremented, +// moving to the Finished state without transitioning through an Error state at all. +// +// ## Terminal State +// +// The terminal state has iter.depth < depth. at_start is always false. +// +// - Finished: When we have reached a }, we are finished. We signal this by decrementing depth. +// In this state, iter.depth < depth, at_start == false, and error == SUCCESS. +// + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + icelake::ondemand::object_iterator &&value +) noexcept + : implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +// Checks for ']' and ',' +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++first; + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/object_iterator-inl.h for icelake */ +/* including simdjson/generic/ondemand/parser-inl.h for icelake: #include "simdjson/generic/ondemand/parser-inl.h" */ +/* begin file simdjson/generic/ondemand/parser-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string_view.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/dom/base.h" // for MINIMAL_DOCUMENT_CAPACITY */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity} { +} + +simdjson_warn_unused simdjson_inline error_code parser::allocate(size_t new_capacity, size_t new_max_depth) noexcept { + if (new_capacity > max_capacity()) { return CAPACITY; } + if (string_buf && new_capacity == capacity() && new_max_depth == max_depth()) { return SUCCESS; } + + // string_capacity copied from document::allocate + _capacity = 0; + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset(new (std::nothrow) uint8_t[string_capacity]); +#if SIMDJSON_DEVELOPMENT_CHECKS + start_positions.reset(new (std::nothrow) token_position[new_max_depth]); +#endif + if (implementation) { + SIMDJSON_TRY( implementation->set_capacity(new_capacity) ); + SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) ); + } else { + SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) ); + } + _capacity = new_capacity; + _max_depth = new_max_depth; + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length() || !string_buf) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return document::start({ reinterpret_cast(json.data()), this }); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const char *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const uint8_t *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(std::string_view json, size_t allocated) & noexcept { + return iterate(padded_string_view(json, allocated)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const std::string &json) & noexcept { + return iterate(padded_string_view(json)); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + padded_string_view json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + const padded_string &json = result.value_unsafe(); + return iterate(json); +} + +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate_raw(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length()) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return json_iterator(reinterpret_cast(json.data()), this); +} + +inline simdjson_result parser::iterate_many(const uint8_t *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + if(allow_comma_separated && batch_size < len) { batch_size = len; } + return document_stream(*this, buf, len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const char *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(reinterpret_cast(buf), len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const std::string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const padded_string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} + +simdjson_inline size_t parser::capacity() const noexcept { + return _capacity; +} +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; +} +simdjson_inline size_t parser::max_depth() const noexcept { + return _max_depth; +} + +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity < dom::MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = dom::MINIMAL_DOCUMENT_CAPACITY; + } +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement) const noexcept { + uint8_t *end = implementation->parse_string(in.buf, dst, allow_replacement); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept { + uint8_t *end = implementation->parse_wobbly_string(in.buf, dst); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(icelake::ondemand::parser &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H +/* end file simdjson/generic/ondemand/parser-inl.h for icelake */ +/* including simdjson/generic/ondemand/raw_json_string-inl.h for icelake: #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +namespace icelake { +namespace ondemand { + +simdjson_inline raw_json_string::raw_json_string(const uint8_t * _buf) noexcept : buf{_buf} {} + +simdjson_inline const char * raw_json_string::raw() const noexcept { return reinterpret_cast(buf); } + + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(std::string_view target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;pos < target.size() && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;pos < target.size();pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(const char* target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;target[pos] && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;target[pos];pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept { + // If we are going to call memcmp, then we must know something about the length of the raw_json_string. + return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); +} + +simdjson_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + if(target.size() <= SIMDJSON_PADDING) { + return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); + } + const char * r{raw()}; + size_t pos{0}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(std::string_view target) const noexcept { + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + + +simdjson_inline bool raw_json_string::unsafe_is_equal(const char * target) const noexcept { + // Assumptions: 'target' does not contain unescaped quote characters, is null terminated and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(const char* target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept { + return a.unsafe_is_equal(c); +} + +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept { + return a == c; +} + +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept { + return !(a == c); +} + +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept { + return !(a == c); +} + + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape(json_iterator &iter, bool allow_replacement) const noexcept { + return iter.unescape(*this, allow_replacement); +} + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape_wobbly(json_iterator &iter) const noexcept { + return iter.unescape_wobbly(*this); +} + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &out, const raw_json_string &str) noexcept { + bool in_escape = false; + const char *s = str.raw(); + while (true) { + switch (*s) { + case '\\': in_escape = !in_escape; break; + case '"': if (in_escape) { in_escape = false; } else { return out; } break; + default: if (in_escape) { in_escape = false; } + } + out << *s; + s++; + } +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(icelake::ondemand::raw_json_string &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::raw() const noexcept { + if (error()) { return error(); } + return first.raw(); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape(icelake::ondemand::json_iterator &iter, bool allow_replacement) const noexcept { + if (error()) { return error(); } + return first.unescape(iter, allow_replacement); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape_wobbly(icelake::ondemand::json_iterator &iter) const noexcept { + if (error()) { return error(); } + return first.unescape_wobbly(iter); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H +/* end file simdjson/generic/ondemand/raw_json_string-inl.h for icelake */ +/* including simdjson/generic/ondemand/serialization-inl.h for icelake: #include "simdjson/generic/ondemand/serialization-inl.h" */ +/* begin file simdjson/generic/ondemand/serialization-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/serialization.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +inline std::string_view trim(const std::string_view str) noexcept { + // We can almost surely do better by rolling our own find_first_not_of function. + size_t first = str.find_first_not_of(" \t\n\r"); + // If we have the empty string (just white space), then no trimming is possible, and + // we return the empty string_view. + if (std::string_view::npos == first) { return std::string_view(); } + size_t last = str.find_last_not_of(" \t\n\r"); + return str.substr(first, (last - first + 1)); +} + + +inline simdjson_result to_json_string(icelake::ondemand::document& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(icelake::ondemand::document_reference& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(icelake::ondemand::value& x) noexcept { + /** + * If we somehow receive a value that has already been consumed, + * then the following code could be in trouble. E.g., we create + * an array as needed, but if an array was already created, then + * it could be bad. + */ + using namespace icelake::ondemand; + icelake::ondemand::json_type t; + auto error = x.type().get(t); + if(error != SUCCESS) { return error; } + switch (t) + { + case json_type::array: + { + icelake::ondemand::array array; + error = x.get_array().get(array); + if(error) { return error; } + return to_json_string(array); + } + case json_type::object: + { + icelake::ondemand::object object; + error = x.get_object().get(object); + if(error) { return error; } + return to_json_string(object); + } + default: + return trim(x.raw_json_token()); + } +} + +inline simdjson_result to_json_string(icelake::ondemand::object& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(icelake::ondemand::array& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} +} // namespace simdjson + +namespace simdjson { namespace icelake { namespace ondemand { + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::document_reference& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::icelake::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif +}}} // namespace simdjson::icelake::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H +/* end file simdjson/generic/ondemand/serialization-inl.h for icelake */ +/* including simdjson/generic/ondemand/token_iterator-inl.h for icelake: #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/token_iterator-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline token_iterator::token_iterator( + const uint8_t *_buf, + token_position position +) noexcept : buf{_buf}, _position{position} +{ +} + +simdjson_inline uint32_t token_iterator::current_offset() const noexcept { + return *(_position); +} + + +simdjson_inline const uint8_t *token_iterator::return_current_and_advance() noexcept { + return &buf[*(_position++)]; +} + +simdjson_inline const uint8_t *token_iterator::peek(token_position position) const noexcept { + return &buf[*position]; +} +simdjson_inline uint32_t token_iterator::peek_index(token_position position) const noexcept { + return *position; +} +simdjson_inline uint32_t token_iterator::peek_length(token_position position) const noexcept { + return *(position+1) - *position; +} + +simdjson_inline const uint8_t *token_iterator::peek(int32_t delta) const noexcept { + return &buf[*(_position+delta)]; +} +simdjson_inline uint32_t token_iterator::peek_index(int32_t delta) const noexcept { + return *(_position+delta); +} +simdjson_inline uint32_t token_iterator::peek_length(int32_t delta) const noexcept { + return *(_position+delta+1) - *(_position+delta); +} + +simdjson_inline token_position token_iterator::position() const noexcept { + return _position; +} +simdjson_inline void token_iterator::set_position(token_position target_position) noexcept { + _position = target_position; +} + +simdjson_inline bool token_iterator::operator==(const token_iterator &other) const noexcept { + return _position == other._position; +} +simdjson_inline bool token_iterator::operator!=(const token_iterator &other) const noexcept { + return _position != other._position; +} +simdjson_inline bool token_iterator::operator>(const token_iterator &other) const noexcept { + return _position > other._position; +} +simdjson_inline bool token_iterator::operator>=(const token_iterator &other) const noexcept { + return _position >= other._position; +} +simdjson_inline bool token_iterator::operator<(const token_iterator &other) const noexcept { + return _position < other._position; +} +simdjson_inline bool token_iterator::operator<=(const token_iterator &other) const noexcept { + return _position <= other._position; +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(icelake::ondemand::token_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/token_iterator-inl.h for icelake */ +/* including simdjson/generic/ondemand/value-inl.h for icelake: #include "simdjson/generic/ondemand/value-inl.h" */ +/* begin file simdjson/generic/ondemand/value-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline value::value(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} +simdjson_inline value value::start(const value_iterator &iter) noexcept { + return iter; +} +simdjson_inline value value::resume(const value_iterator &iter) noexcept { + return iter; +} + +simdjson_inline simdjson_result value::get_array() noexcept { + return array::start(iter); +} +simdjson_inline simdjson_result value::get_object() noexcept { + return object::start(iter); +} +simdjson_inline simdjson_result value::start_or_resume_object() noexcept { + if (iter.at_start()) { + return get_object(); + } else { + return object::resume(iter); + } +} + +simdjson_inline simdjson_result value::get_raw_json_string() noexcept { + return iter.get_raw_json_string(); +} +simdjson_inline simdjson_result value::get_string(bool allow_replacement) noexcept { + return iter.get_string(allow_replacement); +} +simdjson_inline simdjson_result value::get_wobbly_string() noexcept { + return iter.get_wobbly_string(); +} +simdjson_inline simdjson_result value::get_double() noexcept { + return iter.get_double(); +} +simdjson_inline simdjson_result value::get_double_in_string() noexcept { + return iter.get_double_in_string(); +} +simdjson_inline simdjson_result value::get_uint64() noexcept { + return iter.get_uint64(); +} +simdjson_inline simdjson_result value::get_uint64_in_string() noexcept { + return iter.get_uint64_in_string(); +} +simdjson_inline simdjson_result value::get_int64() noexcept { + return iter.get_int64(); +} +simdjson_inline simdjson_result value::get_int64_in_string() noexcept { + return iter.get_int64_in_string(); +} +simdjson_inline simdjson_result value::get_bool() noexcept { + return iter.get_bool(); +} +simdjson_inline simdjson_result value::is_null() noexcept { + return iter.is_null(); +} +template<> simdjson_inline simdjson_result value::get() noexcept { return get_array(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_object(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_number(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_double(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_bool(); } + +template simdjson_inline error_code value::get(T &out) noexcept { + return get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline value::operator array() noexcept(false) { + return get_array(); +} +simdjson_inline value::operator object() noexcept(false) { + return get_object(); +} +simdjson_inline value::operator uint64_t() noexcept(false) { + return get_uint64(); +} +simdjson_inline value::operator int64_t() noexcept(false) { + return get_int64(); +} +simdjson_inline value::operator double() noexcept(false) { + return get_double(); +} +simdjson_inline value::operator std::string_view() noexcept(false) { + return get_string(false); +} +simdjson_inline value::operator raw_json_string() noexcept(false) { + return get_raw_json_string(); +} +simdjson_inline value::operator bool() noexcept(false) { + return get_bool(); +} +#endif + +simdjson_inline simdjson_result value::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result value::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result value::count_elements() & noexcept { + simdjson_result answer; + auto a = get_array(); + answer = a.count_elements(); + // count_elements leaves you pointing inside the array, at the first element. + // We need to move back so that the user can create a new array (which requires that + // we point at '['). + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::count_fields() & noexcept { + simdjson_result answer; + auto a = get_object(); + answer = a.count_fields(); + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::at(size_t index) noexcept { + auto a = get_array(); + return a.at(index); +} + +simdjson_inline simdjson_result value::find_field(std::string_view key) noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result value::find_field(const char *key) noexcept { + return start_or_resume_object().find_field(key); +} + +simdjson_inline simdjson_result value::find_field_unordered(std::string_view key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result value::find_field_unordered(const char *key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} + +simdjson_inline simdjson_result value::operator[](std::string_view key) noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result value::operator[](const char *key) noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline simdjson_result value::type() noexcept { + return iter.type(); +} + +simdjson_inline simdjson_result value::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool value::is_negative() noexcept { + return iter.is_negative(); +} + +simdjson_inline simdjson_result value::is_integer() noexcept { + return iter.is_integer(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number_type() noexcept { + return iter.get_number_type(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number() noexcept { + return iter.get_number(); +} + +simdjson_inline std::string_view value::raw_json_token() noexcept { + return std::string_view(reinterpret_cast(iter.peek_start()), iter.peek_start_length()); +} + +simdjson_inline simdjson_result value::current_location() noexcept { + return iter.json_iter().current_location(); +} + +simdjson_inline int32_t value::current_depth() const noexcept{ + return iter.json_iter().depth(); +} + +simdjson_inline simdjson_result value::at_pointer(std::string_view json_pointer) noexcept { + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + icelake::ondemand::value &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + if (error()) { return error(); } + return {}; +} + +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} + +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} + +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) noexcept { + if (error()) { return error(); } + return first[key]; +} + +simdjson_inline simdjson_result simdjson_result::get_array() noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return first.get(); +} +template simdjson_inline error_code simdjson_result::get(T &out) noexcept { + if (error()) { return error(); } + return first.get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return std::move(first); +} +template<> simdjson_inline error_code simdjson_result::get(icelake::ondemand::value &out) noexcept { + if (error()) { return error(); } + out = first; + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator icelake::ondemand::array() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator icelake::ondemand::object() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator icelake::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H +/* end file simdjson/generic/ondemand/value-inl.h for icelake */ +/* including simdjson/generic/ondemand/value_iterator-inl.h for icelake: #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/value_iterator-inl.h for icelake */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/atomparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace icelake { +namespace ondemand { + +simdjson_inline value_iterator::value_iterator( + json_iterator *json_iter, + depth_t depth, + token_position start_position +) noexcept : _json_iter{json_iter}, _depth{depth}, _start_position{start_position} +{ +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_root_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_object() noexcept { + assert_at_container_start(); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + if (*_json_iter->peek() == '}') { + logger::log_value(*_json_iter, "empty object"); + _json_iter->return_current_and_advance(); + end_container(); + return false; + } + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_object() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // object: e.g., `{"a":2} foo }`. Users concerned with garbage content should + // call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != '}') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing } at end"); + } + // If the last character is } *and* the first gibberish character is also '}' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == '}') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed object. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_object() noexcept { + auto error = check_root_object(); + if(error) { return error; } + return started_object(); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::end_container() noexcept { +#if SIMDJSON_CHECK_EOF + if (depth() > 1 && at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing parent ] or }"); } + // if (depth() <= 1 && !at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + _json_iter->ascend_to(depth()-1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_field() noexcept { + assert_at_next(); + + // It's illegal to call this unless there are more tokens: anything that ends in } or ] is + // obligated to verify there are more tokens if they are not the top level. + switch (*_json_iter->return_current_and_advance()) { + case '}': + logger::log_end_value(*_json_iter, "object"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between object fields"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_raw(const std::string_view key) noexcept { + error_code error; + bool has_value; + // + // Initially, the object can be in one of a few different places: + // + // 1. The start of the object, at the first field: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + if (at_first_field()) { + has_value = true; + + // + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + return false; + + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + if ((error = skip_child() )) { abandon(); return error; } + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + while (has_value) { + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + //if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); // Skip the value entirely + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + + // If the loop ended, we're out of fields to look at. + return false; +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_unordered_raw(const std::string_view key) noexcept { + /** + * When find_field_unordered_raw is called, we can either be pointing at the + * first key, pointing outside (at the closing brace) or if a key was matched + * we can be either pointing right afterthe ':' right before the value (that we need skip), + * or we may have consumed the value and we might be at a comma or at the + * final brace (ready for a call to has_next_field()). + */ + error_code error; + bool has_value; + + // First, we scan from that point to the end. + // If we don't find a match, we may loop back around, and scan from the beginning to that point. + token_position search_start = _json_iter->position(); + + // We want to know whether we need to go back to the beginning. + bool at_first = at_first_field(); + /////////////// + // Initially, the object can be in one of a few different places: + // + // 1. At the first key: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + // + if (at_first) { + has_value = true; + + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { + +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + SIMDJSON_TRY(reset_object().get(has_value)); + at_first = true; + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + // If someone queried a key but they not did access the value, then we are left pointing + // at the ':' and we need to move forward through the value... If the value was + // processed then skip_child() does not move the iterator (but may adjust the depth). + if ((error = skip_child() )) { abandon(); return error; } + search_start = _json_iter->position(); + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + + // After initial processing, we will be in one of two states: + // + // ``` + // // At the beginning of a field + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // At the end of the object + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // ``` + // + // Next, we find a match starting from the current position. + while (has_value) { + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + // Performance note: it maybe wasteful to rewind to the beginning when there might be + // no other query following. Indeed, it would require reskipping the whole object. + // Instead, you can just stay where you are. If there is a new query, there is always time + // to rewind. + if(at_first) { return false; } + + // If we reach the end without finding a match, search the rest of the fields starting at the + // beginning of the object. + // (We have already run through the object before, so we've already validated its structure. We + // don't check errors in this bit.) + SIMDJSON_TRY(reset_object().get(has_value)); + while (true) { + SIMDJSON_ASSUME(has_value); // we should reach search_start before ever reaching the end of the object + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + error = field_key().get(actual_key); SIMDJSON_ASSUME(!error); + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + error = field_value(); SIMDJSON_ASSUME(!error); + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // If we reached the end of the key-value pair we started from, then we know + // that the key is not there so we return false. We are either right before + // the next comma or the final brace. + if(_json_iter->position() == search_start) { return false; } + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + error = has_next_field().get(has_value); SIMDJSON_ASSUME(!error); + // If we make the mistake of exiting here, then we could be left pointing at a key + // in the middle of an object. That's not an allowable state. + } + // If the loop ended, we're out of fields to look at. The program should + // never reach this point. + return false; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::field_key() noexcept { + assert_at_next(); + + const uint8_t *key = _json_iter->return_current_and_advance(); + if (*(key++) != '"') { return report_error(TAPE_ERROR, "Object key is not a string"); } + return raw_json_string(key); +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::field_value() noexcept { + assert_at_next(); + + if (*_json_iter->return_current_and_advance() != ':') { return report_error(TAPE_ERROR, "Missing colon in object field"); } + _json_iter->descend_to(depth()+1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_root_array(); +} + +inline std::string value_iterator::to_string() const noexcept { + auto answer = std::string("value_iterator [ depth : ") + std::to_string(_depth) + std::string(", "); + if(_json_iter != nullptr) { answer += _json_iter->to_string(); } + answer += std::string(" ]"); + return answer; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_array() noexcept { + assert_at_container_start(); + if (*_json_iter->peek() == ']') { + logger::log_value(*_json_iter, "empty array"); + _json_iter->return_current_and_advance(); + SIMDJSON_TRY( end_container() ); + return false; + } + _json_iter->descend_to(depth()+1); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_array() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // array: e.g., `[1, 2] foo]`. Users concerned with garbage content should + // also call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != ']') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing ] at end"); + } + // If the last character is ] *and* the first gibberish character is also ']' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == ']') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed array. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_array() noexcept { + auto error = check_root_array(); + if (error) { return error; } + return started_array(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_element() noexcept { + assert_at_next(); + + logger::log_event(*this, "has_next_element"); + switch (*_json_iter->return_current_and_advance()) { + case ']': + logger::log_end_value(*_json_iter, "array"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + _json_iter->descend_to(depth()+1); + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between array elements"); + } +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_bool(const uint8_t *json) const noexcept { + auto not_true = atomparsing::str4ncmp(json, "true"); + auto not_false = atomparsing::str4ncmp(json, "fals") | (json[4] ^ 'e'); + bool error = (not_true && not_false) || jsoncharutils::is_not_structural_or_whitespace(json[not_true ? 5 : 4]); + if (error) { return incorrect_type_error("Not a boolean"); } + return simdjson_result(!not_true); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_null(const uint8_t *json) const noexcept { + bool is_null_string = !atomparsing::str4ncmp(json, "null") && jsoncharutils::is_structural_or_whitespace(json[4]); + // if we start with 'n', we must be a null + if(!is_null_string && json[0]=='n') { return incorrect_type_error("Not a null but starts with n"); } + return is_null_string; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_string(bool allow_replacement) noexcept { + return get_raw_json_string().unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_wobbly_string() noexcept { + return get_raw_json_string().unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_raw_json_string() noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64() noexcept { + auto result = numberparsing::parse_unsigned(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64_in_string() noexcept { + auto result = numberparsing::parse_unsigned_in_string(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64() noexcept { + auto result = numberparsing::parse_integer(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64_in_string() noexcept { + auto result = numberparsing::parse_integer_in_string(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double() noexcept { + auto result = numberparsing::parse_double(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double_in_string() noexcept { + auto result = numberparsing::parse_double_in_string(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_bool() noexcept { + auto result = parse_bool(peek_non_root_scalar("bool")); + if(result.error() == SUCCESS) { advance_non_root_scalar("bool"); } + return result; +} +simdjson_inline simdjson_result value_iterator::is_null() noexcept { + bool is_null_value; + SIMDJSON_TRY(parse_null(peek_non_root_scalar("null")).get(is_null_value)); + if(is_null_value) { advance_non_root_scalar("null"); } + return is_null_value; +} +simdjson_inline bool value_iterator::is_negative() noexcept { + return numberparsing::is_negative(peek_non_root_scalar("numbersign")); +} +simdjson_inline bool value_iterator::is_root_negative() noexcept { + return numberparsing::is_negative(peek_root_scalar("numbersign")); +} +simdjson_inline simdjson_result value_iterator::is_integer() noexcept { + return numberparsing::is_integer(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number_type() noexcept { + return numberparsing::get_number_type(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number() noexcept { + number num; + error_code error = numberparsing::parse_number(peek_non_root_scalar("number"), num); + if(error) { return error; } + return num; +} + +simdjson_inline simdjson_result value_iterator::is_root_integer(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("is_root_integer"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + return false; // if there are more than 20 characters, it cannot be represented as an integer. + } + auto answer = numberparsing::is_integer(tmpbuf); + // If the parsing was a success, we must still check that it is + // a single scalar. Note that we parse first because of cases like '[]' where + // getting TRAILING_CONTENT is wrong. + if(check_trailing && (answer.error() == SUCCESS) && (!_json_iter->is_single_token())) { return TRAILING_CONTENT; } + return answer; +} + +simdjson_inline simdjson_result value_iterator::get_root_number_type(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto answer = numberparsing::get_number_type(tmpbuf); + if (check_trailing && (answer.error() == SUCCESS) && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + return answer; +} +simdjson_inline simdjson_result value_iterator::get_root_number(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + number num; + error_code error = numberparsing::parse_number(tmpbuf, num); + if(error) { return error; } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("number"); + return num; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_string(bool check_trailing, bool allow_replacement) noexcept { + return get_root_raw_json_string(check_trailing).unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_wobbly_string(bool check_trailing) noexcept { + return get_root_raw_json_string(check_trailing).unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_raw_json_string(bool check_trailing) noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + + auto result = numberparsing::parse_integer_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_bool(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("bool"); + uint8_t tmpbuf[5+1+1]; // +1 for null termination + tmpbuf[5+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 5+1)) { return incorrect_type_error("Not a boolean"); } + auto result = parse_bool(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("bool"); + } + return result; +} +simdjson_inline simdjson_result value_iterator::is_root_null(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("null"); + bool result = (max_len >= 4 && !atomparsing::str4ncmp(json, "null") && + (max_len == 4 || jsoncharutils::is_structural_or_whitespace(json[4]))); + if(result) { // we have something that looks like a null. + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("null"); + } + return result; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::skip_child() noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth >= _depth ); + + return _json_iter->skip_child(depth()); +} + +simdjson_inline value_iterator value_iterator::child() const noexcept { + assert_at_child(); + return { _json_iter, depth()+1, _json_iter->token.position() }; +} + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and iterator depth, which is a desired effect. It does not happen if is_open is +// marked non-inline. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline bool value_iterator::is_open() const noexcept { + return _json_iter->depth() >= depth(); +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline bool value_iterator::at_end() const noexcept { + return _json_iter->at_end(); +} + +simdjson_inline bool value_iterator::at_start() const noexcept { + return _json_iter->token.position() == start_position(); +} + +simdjson_inline bool value_iterator::at_first_field() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + return _json_iter->token.position() == start_position() + 1; +} + +simdjson_inline void value_iterator::abandon() noexcept { + _json_iter->abandon(); +} + +simdjson_warn_unused simdjson_inline depth_t value_iterator::depth() const noexcept { + return _depth; +} +simdjson_warn_unused simdjson_inline error_code value_iterator::error() const noexcept { + return _json_iter->error; +} +simdjson_warn_unused simdjson_inline uint8_t *&value_iterator::string_buf_loc() noexcept { + return _json_iter->string_buf_loc(); +} +simdjson_warn_unused simdjson_inline const json_iterator &value_iterator::json_iter() const noexcept { + return *_json_iter; +} +simdjson_warn_unused simdjson_inline json_iterator &value_iterator::json_iter() noexcept { + return *_json_iter; +} + +simdjson_inline const uint8_t *value_iterator::peek_start() const noexcept { + return _json_iter->peek(start_position()); +} +simdjson_inline uint32_t value_iterator::peek_start_length() const noexcept { + return _json_iter->peek_length(start_position()); +} + +simdjson_inline const uint8_t *value_iterator::peek_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return peek_start(); } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return; } + + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept { + logger::log_start_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + const uint8_t *json; + if (!is_at_start()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + json = peek_start(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + } else { + assert_at_start(); + /** + * We should be prudent. Let us peek. If it is not the right type, we + * return an error. Only once we have determined that we have the right + * type are we allowed to advance! + */ + json = _json_iter->peek(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + _json_iter->return_current_and_advance(); + } + + + return SUCCESS; +} + + +simdjson_inline const uint8_t *value_iterator::peek_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_root(); + return _json_iter->peek(); +} +simdjson_inline const uint8_t *value_iterator::peek_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + + assert_at_non_root_start(); + return _json_iter->peek(); +} + +simdjson_inline void value_iterator::advance_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_root(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} +simdjson_inline void value_iterator::advance_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_non_root_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} + +simdjson_inline error_code value_iterator::incorrect_type_error(const char *message) const noexcept { + logger::log_error(*_json_iter, start_position(), depth(), message); + return INCORRECT_TYPE; +} + +simdjson_inline bool value_iterator::is_at_start() const noexcept { + return position() == start_position(); +} + +simdjson_inline bool value_iterator::is_at_key() const noexcept { + // Keys are at the same depth as the object. + // Note here that we could be safer and check that we are within an object, + // but we do not. + return _depth == _json_iter->_depth && *_json_iter->peek() == '"'; +} + +simdjson_inline bool value_iterator::is_at_iterator_start() const noexcept { + // We can legitimately be either at the first value ([1]), or after the array if it's empty ([]). + auto delta = position() - start_position(); + return delta == 1 || delta == 2; +} + +inline void value_iterator::assert_at_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_container_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position + 1 ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_next() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +simdjson_inline void value_iterator::move_at_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position); +} + +simdjson_inline void value_iterator::move_at_container_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position + 1); +} + +simdjson_inline simdjson_result value_iterator::reset_array() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_array(); +} + +simdjson_inline simdjson_result value_iterator::reset_object() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_object(); +} + +inline void value_iterator::assert_at_child() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth + 1 ); + SIMDJSON_ASSUME( _depth > 0 ); +} + +inline void value_iterator::assert_at_root() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth == 1 ); +} + +inline void value_iterator::assert_at_non_root_start() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth > 1 ); +} + +inline void value_iterator::assert_is_valid() const noexcept { + SIMDJSON_ASSUME( _json_iter != nullptr ); +} + +simdjson_inline bool value_iterator::is_valid() const noexcept { + return _json_iter != nullptr; +} + +simdjson_inline simdjson_result value_iterator::type() const noexcept { + switch (*peek_start()) { + case '{': + return json_type::object; + case '[': + return json_type::array; + case '"': + return json_type::string; + case 'n': + return json_type::null; + case 't': case 'f': + return json_type::boolean; + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return json_type::number; + default: + return TAPE_ERROR; + } +} + +simdjson_inline token_position value_iterator::start_position() const noexcept { + return _start_position; +} + +simdjson_inline token_position value_iterator::position() const noexcept { + return _json_iter->position(); +} + +simdjson_inline token_position value_iterator::end_position() const noexcept { + return _json_iter->end_position(); +} + +simdjson_inline token_position value_iterator::last_position() const noexcept { + return _json_iter->last_position(); +} + +simdjson_inline error_code value_iterator::report_error(error_code error, const char *message) noexcept { + return _json_iter->report_error(error, message); +} + +} // namespace ondemand +} // namespace icelake +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(icelake::ondemand::value_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/value_iterator-inl.h for icelake */ +/* end file simdjson/generic/ondemand/amalgamated.h for icelake */ +/* including simdjson/icelake/end.h: #include "simdjson/icelake/end.h" */ +/* begin file simdjson/icelake/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/icelake/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_ICELAKE +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "icelake" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/icelake/end.h */ + +#endif // SIMDJSON_ICELAKE_ONDEMAND_H +/* end file simdjson/icelake/ondemand.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(ppc64) +/* including simdjson/ppc64/ondemand.h: #include "simdjson/ppc64/ondemand.h" */ +/* begin file simdjson/ppc64/ondemand.h */ +#ifndef SIMDJSON_PPC64_ONDEMAND_H +#define SIMDJSON_PPC64_ONDEMAND_H + +/* including simdjson/ppc64/begin.h: #include "simdjson/ppc64/begin.h" */ +/* begin file simdjson/ppc64/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "ppc64" */ +#define SIMDJSON_IMPLEMENTATION ppc64 +/* including simdjson/ppc64/base.h: #include "simdjson/ppc64/base.h" */ +/* begin file simdjson/ppc64/base.h */ +#ifndef SIMDJSON_PPC64_BASE_H +#define SIMDJSON_PPC64_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Implementation for ALTIVEC (PPC64). + */ +namespace ppc64 { + +class implementation; + +namespace { +namespace simd { +template struct simd8; +template struct simd8x64; +} // namespace simd +} // unnamed namespace + +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_BASE_H +/* end file simdjson/ppc64/base.h */ +/* including simdjson/ppc64/intrinsics.h: #include "simdjson/ppc64/intrinsics.h" */ +/* begin file simdjson/ppc64/intrinsics.h */ +#ifndef SIMDJSON_PPC64_INTRINSICS_H +#define SIMDJSON_PPC64_INTRINSICS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +// This should be the correct header whether +// you use visual studio or other compilers. +#include + +// These are defined by altivec.h in GCC toolchain, it is safe to undef them. +#ifdef bool +#undef bool +#endif + +#ifdef vector +#undef vector +#endif + +static_assert(sizeof(__vector unsigned char) <= simdjson::SIMDJSON_PADDING, "insufficient padding for ppc64"); + +#endif // SIMDJSON_PPC64_INTRINSICS_H +/* end file simdjson/ppc64/intrinsics.h */ +/* including simdjson/ppc64/bitmanipulation.h: #include "simdjson/ppc64/bitmanipulation.h" */ +/* begin file simdjson/ppc64/bitmanipulation.h */ +#ifndef SIMDJSON_PPC64_BITMANIPULATION_H +#define SIMDJSON_PPC64_BITMANIPULATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num - 1); +} + +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} + +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline int count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num); // Visual Studio wants two underscores +} +#else +simdjson_inline int count_ones(uint64_t input_num) { + return __builtin_popcountll(input_num); +} +#endif + +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + *result = value1 + value2; + return *result < value1; +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_BITMANIPULATION_H +/* end file simdjson/ppc64/bitmanipulation.h */ +/* including simdjson/ppc64/bitmask.h: #include "simdjson/ppc64/bitmask.h" */ +/* begin file simdjson/ppc64/bitmask.h */ +#ifndef SIMDJSON_PPC64_BITMASK_H +#define SIMDJSON_PPC64_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is +// encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(uint64_t bitmask) { + // You can use the version below, however gcc sometimes miscompiles + // vec_pmsum_be, it happens somewhere around between 8 and 9th version. + // The performance boost was not noticeable, falling back to a usual + // implementation. + // __vector unsigned long long all_ones = {~0ull, ~0ull}; + // __vector unsigned long long mask = {bitmask, 0}; + // // Clang and GCC return different values for pmsum for ull so cast it to one. + // // Generally it is not specified by ALTIVEC ISA what is returned by + // // vec_pmsum_be. + // #if defined(__LITTLE_ENDIAN__) + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[0]); + // #else + // return (uint64_t)(((__vector unsigned long long)vec_pmsum_be(all_ones, mask))[1]); + // #endif + bitmask ^= bitmask << 1; + bitmask ^= bitmask << 2; + bitmask ^= bitmask << 4; + bitmask ^= bitmask << 8; + bitmask ^= bitmask << 16; + bitmask ^= bitmask << 32; + return bitmask; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif +/* end file simdjson/ppc64/bitmask.h */ +/* including simdjson/ppc64/numberparsing_defs.h: #include "simdjson/ppc64/numberparsing_defs.h" */ +/* begin file simdjson/ppc64/numberparsing_defs.h */ +#ifndef SIMDJSON_PPC64_NUMBERPARSING_DEFS_H +#define SIMDJSON_PPC64_NUMBERPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/intrinsics.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +#if defined(__linux__) +#include +#elif defined(__FreeBSD__) +#include +#endif + +namespace simdjson { +namespace ppc64 { +namespace numberparsing { + +// we don't have appropriate instructions, so let us use a scalar function +// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + uint64_t val; + std::memcpy(&val, chars, sizeof(uint64_t)); +#ifdef __BIG_ENDIAN__ +#if defined(__linux__) + val = bswap_64(val); +#elif defined(__FreeBSD__) + val = bswap64(val); +#endif +#endif + val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; + val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; + return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +} + +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace ppc64 +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_PPC64_NUMBERPARSING_DEFS_H +/* end file simdjson/ppc64/numberparsing_defs.h */ +/* including simdjson/ppc64/simd.h: #include "simdjson/ppc64/simd.h" */ +/* begin file simdjson/ppc64/simd.h */ +#ifndef SIMDJSON_PPC64_SIMD_H +#define SIMDJSON_PPC64_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace ppc64 { +namespace { +namespace simd { + +using __m128i = __vector unsigned char; + +template struct base { + __m128i value; + + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i &() const { + return this->value; + } + simdjson_inline operator __m128i &() { return this->value; } + + // Bit operations + simdjson_inline Child operator|(const Child other) const { + return vec_or(this->value, (__m128i)other); + } + simdjson_inline Child operator&(const Child other) const { + return vec_and(this->value, (__m128i)other); + } + simdjson_inline Child operator^(const Child other) const { + return vec_xor(this->value, (__m128i)other); + } + simdjson_inline Child bit_andnot(const Child other) const { + return vec_andc(this->value, (__m128i)other); + } + simdjson_inline Child &operator|=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast | other; + return *this_cast; + } + simdjson_inline Child &operator&=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast & other; + return *this_cast; + } + simdjson_inline Child &operator^=(const Child other) { + auto this_cast = static_cast(this); + *this_cast = *this_cast ^ other; + return *this_cast; + } +}; + +template > +struct base8 : base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; + + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} + + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { + return (__m128i)vec_cmpeq(lhs.value, (__m128i)rhs); + } + + static const int SIZE = sizeof(base>::value); + + template + simdjson_inline simd8 prev(simd8 prev_chunk) const { + __m128i chunk = this->value; +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve(this->value); + prev_chunk = (__m128i)vec_reve((__m128i)prev_chunk); +#endif + chunk = (__m128i)vec_sld((__m128i)prev_chunk, (__m128i)chunk, 16 - N); +#ifdef __LITTLE_ENDIAN__ + chunk = (__m128i)vec_reve((__m128i)chunk); +#endif + return chunk; + } +}; + +// SIMD byte mask type (returned by things like eq and gt) +template <> struct simd8 : base8 { + static simdjson_inline simd8 splat(bool _value) { + return (__m128i)vec_splats((unsigned char)(-(!!_value))); + } + + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) + : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) + : base8(splat(_value)) {} + + simdjson_inline int to_bitmask() const { + __vector unsigned long long result; + const __m128i perm_mask = {0x78, 0x70, 0x68, 0x60, 0x58, 0x50, 0x48, 0x40, + 0x38, 0x30, 0x28, 0x20, 0x18, 0x10, 0x08, 0x00}; + + result = ((__vector unsigned long long)vec_vbpermq((__m128i)this->value, + (__m128i)perm_mask)); +#ifdef __LITTLE_ENDIAN__ + return static_cast(result[1]); +#else + return static_cast(result[0]); +#endif + } + simdjson_inline bool any() const { + return !vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline simd8 operator~() const { + return this->value ^ (__m128i)splat(true); + } +}; + +template struct base8_numeric : base8 { static simdjson_inline simd8 splat(T value) { (void)value; return (__m128i)vec_splats(value); } - static simdjson_inline simd8 zero() { return splat(0); } - static simdjson_inline simd8 load(const T values[16]) { - return (__m128i)(vec_vsx_ld(0, reinterpret_cast(values))); + static simdjson_inline simd8 zero() { return splat(0); } + static simdjson_inline simd8 load(const T values[16]) { + return (__m128i)(vec_vsx_ld(0, reinterpret_cast(values))); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16(T v0, T v1, T v2, T v3, T v4, + T v5, T v6, T v7, T v8, T v9, + T v10, T v11, T v12, T v13, + T v14, T v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, + v14, v15); + } + + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) + : base8(_value) {} + + // Store to array + simdjson_inline void store(T dst[16]) const { + vec_vsx_st(this->value, 0, reinterpret_cast<__m128i *>(dst)); + } + + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { + return (__m128i)((__m128i)this->value + (__m128i)other); + } + simdjson_inline simd8 operator-(const simd8 other) const { + return (__m128i)((__m128i)this->value - (__m128i)other); + } + simdjson_inline simd8 &operator+=(const simd8 other) { + *this = *this + other; + return *static_cast *>(this); + } + simdjson_inline simd8 &operator-=(const simd8 other) { + *this = *this - other; + return *static_cast *>(this); + } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior + // for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return (__m128i)vec_perm((__m128i)lookup_table, (__m128i)lookup_table, this->value); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted + // as a bitset). Passing a 0 value for mask would be equivalent to writing out + // every byte to output. Only the first 16 - count_ones(mask) bytes of the + // result are significant but 16 bytes get written. Design consideration: it + // seems like a function with the signature simd8 compress(uint32_t mask) + // would be sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L *output) const { + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + using internal::thintable_epi8; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. +#ifdef __LITTLE_ENDIAN__ + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask1], thintable_epi8[mask2]}; +#else + __m128i shufmask = (__m128i)(__vector unsigned long long){ + thintable_epi8[mask2], thintable_epi8[mask1]}; + shufmask = (__m128i)vec_reve((__m128i)shufmask); +#endif + // we increment by 0x08 the second half of the mask + shufmask = ((__m128i)shufmask) + + ((__m128i)(__vector int){0, 0, 0x08080808, 0x08080808}); + + // this is the version "nearly pruned" + __m128i pruned = vec_perm(this->value, this->value, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + vec_vsx_ld(0, reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = vec_perm(pruned, (__m128i)vec_splats(0), compactmask); + vec_vsx_st(answer, 0, reinterpret_cast<__m128i *>(output)); + } + + template + simdjson_inline simd8 + lookup_16(L replace0, L replace1, L replace2, L replace3, L replace4, + L replace5, L replace6, L replace7, L replace8, L replace9, + L replace10, L replace11, L replace12, L replace13, L replace14, + L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, replace4, replace5, replace6, + replace7, replace8, replace9, replace10, replace11, replace12, + replace13, replace14, replace15)); + } +}; + +// Signed bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8(int8_t v0, int8_t v1, int8_t v2, int8_t v3, + int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) + : simd8((__m128i)(__vector signed char){v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10, v11, v12, v13, v14, + v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, + int8_t v6, int8_t v7, int8_t v8, int8_t v9, int8_t v10, int8_t v11, + int8_t v12, int8_t v13, int8_t v14, int8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Order-sensitive comparisons + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return (__m128i)vec_cmpgt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return (__m128i)vec_cmplt((__vector signed char)this->value, + (__vector signed char)(__m128i)other); + } +}; + +// Unsigned bytes +template <> struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) + : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t *values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline + simd8(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, + uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, uint8_t v10, + uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15) + : simd8((__m128i){v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15}) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 + repeat_16(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, + uint8_t v5, uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, + uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, + uint8_t v15) { + return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, + v13, v14, v15); + } + + // Saturated math + simdjson_inline simd8 + saturating_add(const simd8 other) const { + return (__m128i)vec_adds(this->value, (__m128i)other); + } + simdjson_inline simd8 + saturating_sub(const simd8 other) const { + return (__m128i)vec_subs(this->value, (__m128i)other); + } + + // Order-specific operations + simdjson_inline simd8 + max_val(const simd8 other) const { + return (__m128i)vec_max(this->value, (__m128i)other); + } + simdjson_inline simd8 + min_val(const simd8 other) const { + return (__m128i)vec_min(this->value, (__m128i)other); + } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + gt_bits(const simd8 other) const { + return this->saturating_sub(other); + } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 + lt_bits(const simd8 other) const { + return other.saturating_sub(*this); + } + simdjson_inline simd8 + operator<=(const simd8 other) const { + return other.max_val(*this) == other; + } + simdjson_inline simd8 + operator>=(const simd8 other) const { + return other.min_val(*this) == other; + } + simdjson_inline simd8 + operator>(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + simdjson_inline simd8 + operator<(const simd8 other) const { + return this->gt_bits(other).any_bits_set(); + } + + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { + return (__m128i)vec_cmpeq(this->value, (__m128i)vec_splats(uint8_t(0))); + } + simdjson_inline simd8 bits_not_set(simd8 bits) const { + return (*this & bits).bits_not_set(); + } + simdjson_inline simd8 any_bits_set() const { + return ~this->bits_not_set(); + } + simdjson_inline simd8 any_bits_set(simd8 bits) const { + return ~this->bits_not_set(bits); + } + simdjson_inline bool bits_not_set_anywhere() const { + return vec_all_eq(this->value, (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere() const { + return !bits_not_set_anywhere(); + } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { + return vec_all_eq(vec_and(this->value, (__m128i)bits), + (__m128i)vec_splats(0)); + } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { + return !bits_not_set_anywhere(bits); + } + template simdjson_inline simd8 shr() const { + return simd8( + (__m128i)vec_sr(this->value, (__m128i)vec_splat_u8(N))); + } + template simdjson_inline simd8 shl() const { + return simd8( + (__m128i)vec_sl(this->value, (__m128i)vec_splat_u8(N))); + } +}; + +template struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, + "PPC64 kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64 &o) = delete; // no copy allowed + simd8x64 & + operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, + const simd8 chunk2, const simd8 chunk3) + : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) + : chunks{simd8::load(ptr), simd8::load(ptr + 16), + simd8::load(ptr + 32), simd8::load(ptr + 48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr + sizeof(simd8) * 0); + this->chunks[1].store(ptr + sizeof(simd8) * 1); + this->chunks[2].store(ptr + sizeof(simd8) * 2); + this->chunks[3].store(ptr + sizeof(simd8) * 3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | + (this->chunks[2] | this->chunks[3]); + } + + simdjson_inline uint64_t compress(uint64_t mask, T *output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), + output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), + output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), + output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask()); + uint64_t r1 = this->chunks[1].to_bitmask(); + uint64_t r2 = this->chunks[2].to_bitmask(); + uint64_t r3 = this->chunks[3].to_bitmask(); + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } + + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] == mask, this->chunks[1] == mask, + this->chunks[2] == mask, this->chunks[3] == mask) + .to_bitmask(); + } + + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64(this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3]) + .to_bitmask(); + } + + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64(this->chunks[0] <= mask, this->chunks[1] <= mask, + this->chunks[2] <= mask, this->chunks[3] <= mask) + .to_bitmask(); + } +}; // struct simd8x64 + +} // namespace simd +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_SIMD_INPUT_H +/* end file simdjson/ppc64/simd.h */ +/* including simdjson/ppc64/stringparsing_defs.h: #include "simdjson/ppc64/stringparsing_defs.h" */ +/* begin file simdjson/ppc64/stringparsing_defs.h */ +#ifndef SIMDJSON_PPC64_STRINGPARSING_DEFS_H +#define SIMDJSON_PPC64_STRINGPARSING_DEFS_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/simd.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace { + +using namespace simd; + +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote + copy_and_find(const uint8_t *src, uint8_t *dst); + + simdjson_inline bool has_quote_first() { + return ((bs_bits - 1) & quote_bits) != 0; + } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { + return trailing_zeroes(quote_bits); + } + simdjson_inline int backslash_index() { + return trailing_zeroes(bs_bits); + } + + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote + +simdjson_inline backslash_and_quote +backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), + "backslash and quote finder must process fewer than " + "SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + sizeof(v0)); + v0.store(dst); + v1.store(dst + sizeof(v0)); + + // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on + // PPC; therefore, we smash them together into a 64-byte mask and get the + // bitmask from there. + uint64_t bs_and_quote = + simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} + +} // unnamed namespace +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_PPC64_STRINGPARSING_DEFS_H +/* end file simdjson/ppc64/stringparsing_defs.h */ + +#define SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT 1 +/* end file simdjson/ppc64/begin.h */ +/* including simdjson/generic/ondemand/amalgamated.h for ppc64: #include "simdjson/generic/ondemand/amalgamated.h" */ +/* begin file simdjson/generic/ondemand/amalgamated.h for ppc64 */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H) +#error simdjson/generic/ondemand/dependencies.h must be included before simdjson/generic/ondemand/amalgamated.h! +#endif + +// Stuff other things depend on +/* including simdjson/generic/ondemand/base.h for ppc64: #include "simdjson/generic/ondemand/base.h" */ +/* begin file simdjson/generic/ondemand/base.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +/** + * A fast, simple, DOM-like interface that parses JSON as you use it. + * + * Designed for maximum speed and a lower memory profile. + */ +namespace ondemand { + +/** Represents the depth of a JSON value (number of nested arrays/objects). */ +using depth_t = int32_t; + +/** @copydoc simdjson::ppc64::number_type */ +using number_type = simdjson::ppc64::number_type; + +/** @private Position in the JSON buffer indexes */ +using token_position = const uint32_t *; + +class array; +class array_iterator; +class document; +class document_reference; +class document_stream; +class field; +class json_iterator; +enum class json_type; +struct number; +class object; +class object_iterator; +class parser; +class raw_json_string; +class token_iterator; +class value; +class value_iterator; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_BASE_H +/* end file simdjson/generic/ondemand/base.h for ppc64 */ +/* including simdjson/generic/ondemand/value_iterator.h for ppc64: #include "simdjson/generic/ondemand/value_iterator.h" */ +/* begin file simdjson/generic/ondemand/value_iterator.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * Iterates through a single JSON value at a particular depth. + * + * Does not keep track of the type of value: provides methods for objects, arrays and scalars and expects + * the caller to call the right ones. + * + * @private This is not intended for external use. + */ +class value_iterator { +protected: + /** The underlying JSON iterator */ + json_iterator *_json_iter{}; + /** The depth of this value */ + depth_t _depth{}; + /** + * The starting token index for this value + */ + token_position _start_position{}; + +public: + simdjson_inline value_iterator() noexcept = default; + + /** + * Denote that we're starting a document. + */ + simdjson_inline void start_document() noexcept; + + /** + * Skips a non-iterated or partially-iterated JSON value, whether it is a scalar, array or object. + * + * Optimized for scalars. + */ + simdjson_warn_unused simdjson_inline error_code skip_child() noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is at the start of the value + */ + simdjson_inline bool at_start() const noexcept; + + /** + * Tell whether the value is open--if the value has not been used, or the array/object is still open. + */ + simdjson_inline bool is_open() const noexcept; + + /** + * Tell whether the value is at an object's first field (just after the {). + */ + simdjson_inline bool at_first_field() const noexcept; + + /** + * Abandon all iteration. + */ + simdjson_inline void abandon() noexcept; + + /** + * Get the child value as a value_iterator. + */ + simdjson_inline value_iterator child_value() const noexcept; + + /** + * Get the depth of this value. + */ + simdjson_inline int32_t depth() const noexcept; + + /** + * Get the JSON type of this value. + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() const noexcept; + + /** + * @addtogroup object Object iteration + * + * Methods to iterate and find object fields. These methods generally *assume* the value is + * actually an object; the caller is responsible for keeping track of that fact. + * + * @{ + */ + + /** + * Start an object iteration. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + */ + simdjson_warn_unused simdjson_inline simdjson_result start_object() noexcept; + /** + * Start an object iteration from the root. + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_object() noexcept; + /** + * Checks whether an object could be started from the root. May be called by start_root_object. + * + * @returns SUCCESS if it is possible to safely start an object from the root (document level). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_object() noexcept; + /** + * Start an object iteration after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_object() noexcept; + /** + * Start an object iteration from the root, after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_object() noexcept; + + /** + * Moves to the next field in an object. + * + * Looks for , and }. If } is found, the object is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return whether there is another field in the object. + * @error TAPE_ERROR If there is a comma missing between fields. + * @error TAPE_ERROR If there is a comma, but not enough tokens remaining to have a key, :, and value. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_field() noexcept; + + /** + * Get the current field's key. + */ + simdjson_warn_unused simdjson_inline simdjson_result field_key() noexcept; + + /** + * Pass the : in the field and move to its value. + */ + simdjson_warn_unused simdjson_inline error_code field_value() noexcept; + + /** + * Find the next field with the given key. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline error_code find_field(const std::string_view key) noexcept; + + /** + * Find the next field with the given key, *without* unescaping. This assumes object order: it + * will not find the field if it was already passed when looking for some *other* field. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_raw(const std::string_view key) noexcept; + + /** + * Find the field with the given key without regard to order, and *without* unescaping. + * + * This is an unordered object lookup: if the field is not found initially, it will cycle around and scan from the beginning. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). + */ + simdjson_warn_unused simdjson_inline simdjson_result find_field_unordered_raw(const std::string_view key) noexcept; + + /** @} */ + + /** + * @addtogroup array Array iteration + * Methods to iterate over array elements. These methods generally *assume* the value is actually + * an object; the caller is responsible for keeping track of that fact. + * @{ + */ + + /** + * Check for an opening [ and start an array iteration. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + */ + simdjson_warn_unused simdjson_inline simdjson_result start_array() noexcept; + /** + * Check for an opening [ and start an array iteration while at the root. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_array() noexcept; + /** + * Checks whether an array could be started from the root. May be called by start_root_array. + * + * @returns SUCCESS if it is possible to safely start an array from the root (document level). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document + */ + simdjson_warn_unused simdjson_inline error_code check_root_array() noexcept; + /** + * Start an array iteration, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_array() noexcept; + /** + * Start an array iteration from the root, after the user has already checked and moved past the [. + * + * Does not move the iterator unless the array is empty ([]). + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). + */ + simdjson_warn_unused simdjson_inline simdjson_result started_root_array() noexcept; + + /** + * Moves to the next element in an array. + * + * Looks for , and ]. If ] is found, the array is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return Whether there is another element in the array. + * @error TAPE_ERROR If there is a comma missing between elements. + */ + simdjson_warn_unused simdjson_inline simdjson_result has_next_element() noexcept; + + /** + * Get a child value iterator. + */ + simdjson_warn_unused simdjson_inline value_iterator child() const noexcept; + + /** @} */ + + /** + * @defgroup scalar Scalar values + * @addtogroup scalar + * @{ + */ + + simdjson_warn_unused simdjson_inline simdjson_result get_string(bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_bool() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_null() noexcept; + simdjson_warn_unused simdjson_inline bool is_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_integer() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + simdjson_warn_unused simdjson_inline simdjson_result get_root_string(bool check_trailing, bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_wobbly_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_raw_json_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_bool(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline bool is_root_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_integer(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number_type(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_null(bool check_trailing) noexcept; + + simdjson_inline error_code error() const noexcept; + simdjson_inline uint8_t *&string_buf_loc() noexcept; + simdjson_inline const json_iterator &json_iter() const noexcept; + simdjson_inline json_iterator &json_iter() noexcept; + + simdjson_inline void assert_is_valid() const noexcept; + simdjson_inline bool is_valid() const noexcept; + + /** @} */ +protected: + /** + * Restarts an array iteration. + * @returns Whether the array has any elements (returns false for empty). + */ + simdjson_inline simdjson_result reset_array() noexcept; + /** + * Restarts an object iteration. + * @returns Whether the object has any fields (returns false for empty). + */ + simdjson_inline simdjson_result reset_object() noexcept; + /** + * move_at_start(): moves us so that we are pointing at the beginning of + * the container. It updates the index so that at_start() is true and it + * syncs the depth. The user can then create a new container instance. + * + * Usage: used with value::count_elements(). + **/ + simdjson_inline void move_at_start() noexcept; + + /** + * move_at_container_start(): moves us so that we are pointing at the beginning of + * the container so that assert_at_container_start() passes. + * + * Usage: used with reset_array() and reset_object(). + **/ + simdjson_inline void move_at_container_start() noexcept; + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + simdjson_inline value_iterator(json_iterator *json_iter, depth_t depth, token_position start_index) noexcept; + + simdjson_inline simdjson_result parse_null(const uint8_t *json) const noexcept; + simdjson_inline simdjson_result parse_bool(const uint8_t *json) const noexcept; + simdjson_inline const uint8_t *peek_start() const noexcept; + simdjson_inline uint32_t peek_start_length() const noexcept; + + /** + * The general idea of the advance_... methods and the peek_* methods + * is that you first peek and check that you have desired type. If you do, + * and only if you do, then you advance. + * + * We used to unconditionally advance. But this made reasoning about our + * current state difficult. + * Suppose you always advance. Look at the 'value' matching the key + * "shadowable" in the following example... + * + * ({"globals":{"a":{"shadowable":[}}}}) + * + * If the user thinks it is a Boolean and asks for it, then we check the '[', + * decide it is not a Boolean, but still move into the next character ('}'). Now + * we are left pointing at '}' right after a '['. And we have not yet reported + * an error, only that we do not have a Boolean. + * + * If, instead, you just stand your ground until it is content that you know, then + * you will only even move beyond the '[' if the user tells you that you have an + * array. So you will be at the '}' character inside the array and, hopefully, you + * will then catch the error because an array cannot start with '}', but the code + * processing Boolean values does not know this. + * + * So the contract is: first call 'peek_...' and then call 'advance_...' only + * if you have determined that it is a type you can handle. + * + * Unfortunately, it makes the code more verbose, longer and maybe more error prone. + */ + + simdjson_inline void advance_scalar(const char *type) noexcept; + simdjson_inline void advance_root_scalar(const char *type) noexcept; + simdjson_inline void advance_non_root_scalar(const char *type) noexcept; + + simdjson_inline const uint8_t *peek_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_root_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_non_root_scalar(const char *type) noexcept; + + + simdjson_inline error_code start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept; + simdjson_inline error_code end_container() noexcept; + + /** + * Advance to a place expecting a value (increasing depth). + * + * @return The current token (the one left behind). + * @error TAPE_ERROR If the document ended early. + */ + simdjson_inline simdjson_result advance_to_value() noexcept; + + simdjson_inline error_code incorrect_type_error(const char *message) const noexcept; + simdjson_inline error_code error_unless_more_tokens(uint32_t tokens=1) const noexcept; + + simdjson_inline bool is_at_start() const noexcept; + /** + * is_at_iterator_start() returns true on an array or object after it has just been + * created, whether the instance is empty or not. + * + * Usage: used by array::begin() in debug mode (SIMDJSON_DEVELOPMENT_CHECKS) + */ + simdjson_inline bool is_at_iterator_start() const noexcept; + + /** + * Assuming that we are within an object, this returns true if we + * are pointing at a key. + * + * Usage: the skip_child() method should never be used while we are pointing + * at a key inside an object. + */ + simdjson_inline bool is_at_key() const noexcept; + + inline void assert_at_start() const noexcept; + inline void assert_at_container_start() const noexcept; + inline void assert_at_root() const noexcept; + inline void assert_at_child() const noexcept; + inline void assert_at_next() const noexcept; + inline void assert_at_non_root_start() const noexcept; + + /** Get the starting position of this value */ + simdjson_inline token_position start_position() const noexcept; + + /** @copydoc error_code json_iterator::position() const noexcept; */ + simdjson_inline token_position position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position last_position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position end_position() const noexcept; + /** @copydoc error_code json_iterator::report_error(error_code error, const char *message) noexcept; */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + friend class document; + friend class object; + friend class array; + friend class value; +}; // value_iterator + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::value_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H +/* end file simdjson/generic/ondemand/value_iterator.h for ppc64 */ +/* including simdjson/generic/ondemand/value.h for ppc64: #include "simdjson/generic/ondemand/value.h" */ +/* begin file simdjson/generic/ondemand/value.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * An ephemeral JSON value returned during iteration. It is only valid for as long as you do + * not access more data in the JSON document. + */ +class value { +public: + /** + * Create a new invalid value. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline value() noexcept = default; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) noexcept; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() noexcept; + + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() noexcept; + + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + + /** + * Cast this JSON value (inside string) to a unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * Important: a value should be consumed once. Calling get_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + + + /** + * Cast this JSON value to a "wobbly" string. + * + * The string is may not be a valid UTF-8 string. + * See https://simonsapin.github.io/wtf-8/ + * + * Important: a value should be consumed once. Calling get_wobbly_string() twice on the same value + * is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); +#endif + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + * + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * Performance hint: You should only call count_elements() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method on the object instance. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @return The type of JSON value (json_type::array, json_type::object, json_type::string, + * json_type::number, json_type::boolean, or json_type::null). + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the value is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the value is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the value is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * Performance note: if you call this function systematically + * before parsing a number, you may have fallen for a performance + * anti-pattern. + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + * + * Performance note: this is designed with performance in mind. When + * calling 'get_number()', you scan the number string only once, determining + * efficiently the type and storing it in an efficient manner. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. However, if this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view is guaranteed to be + * a non-space token. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline std::string_view raw_json_token() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + simdjson_inline simdjson_result current_location() noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. + * + * Calling at_pointer() on non-document instances (e.g., arrays and objects) is not + * standardized (by RFC 6901). We provide some experimental support for JSON pointers + * on non-document instances. Yet it is not the case when calling at_pointer on an array + * or an object instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + +protected: + /** + * Create a value. + */ + simdjson_inline value(const value_iterator &iter) noexcept; + + /** + * Skip this value, allowing iteration to continue. + */ + simdjson_inline void skip() noexcept; + + /** + * Start a value at the current position. + * + * (It should already be started; this is just a self-documentation method.) + */ + static simdjson_inline value start(const value_iterator &iter) noexcept; + + /** + * Resume a value. + */ + static simdjson_inline value resume(const value_iterator &iter) noexcept; + + /** + * Get the object, starting or resuming it as necessary + */ + simdjson_inline simdjson_result start_or_resume_object() noexcept; + + // simdjson_inline void log_value(const char *type) const noexcept; + // simdjson_inline void log_error(const char *message) const noexcept; + + value_iterator iter{}; + + friend class document; + friend class array_iterator; + friend class field; + friend class object; + friend struct simdjson_result; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::value &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result get_array() noexcept; + simdjson_inline simdjson_result get_object() noexcept; + + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() noexcept; + + template simdjson_inline error_code get(T &out) noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator ppc64::ondemand::array() noexcept(false); + simdjson_inline operator ppc64::ondemand::object() noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator ppc64::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; + + /** + * Get the type of this JSON value. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + */ + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + + /** @copydoc simdjson_inline std::string_view value::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** @copydoc simdjson_inline simdjson_result current_location() noexcept */ + simdjson_inline simdjson_result current_location() noexcept; + /** @copydoc simdjson_inline int32_t current_depth() const noexcept */ + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_H +/* end file simdjson/generic/ondemand/value.h for ppc64 */ +/* including simdjson/generic/ondemand/logger.h for ppc64: #include "simdjson/generic/ondemand/logger.h" */ +/* begin file simdjson/generic/ondemand/logger.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +// Logging should be free unless SIMDJSON_VERBOSE_LOGGING is set. Importantly, it is critical +// that the call to the log functions be side-effect free. Thus, for example, you should not +// create temporary std::string instances. +namespace logger { + +enum class log_level : int32_t { + info = 0, + error = 1 +}; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + +// We do not want these functions to be 'really inlined' since real inlining is +// for performance purposes and if you are using the loggers, you do not care about +// performance (or should not). +static inline void log_headers() noexcept; +// If args are provided, title will be treated as format string +template +static inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +template +static inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; +static inline void log_event(const json_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_value(const json_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_start_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; + +static inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail="") noexcept; +static inline void log_error(const json_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +static inline void log_event(const value_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const value_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_error(const value_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +} // namespace logger +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_H +/* end file simdjson/generic/ondemand/logger.h for ppc64 */ +/* including simdjson/generic/ondemand/token_iterator.h for ppc64: #include "simdjson/generic/ondemand/token_iterator.h" */ +/* begin file simdjson/generic/ondemand/token_iterator.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * Iterates through JSON tokens (`{` `}` `[` `]` `,` `:` `""` `123` `true` `false` `null`) + * detected by stage 1. + * + * @private This is not intended for external use. + */ +class token_iterator { +public: + /** + * Create a new invalid token_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline token_iterator() noexcept = default; + simdjson_inline token_iterator(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator &operator=(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator(const token_iterator &other) noexcept = default; + simdjson_inline token_iterator &operator=(const token_iterator &other) noexcept = default; + + /** + * Advance to the next token (returning the current one). + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + /** + * Reports the current offset in bytes from the start of the underlying buffer. + */ + simdjson_inline uint32_t current_offset() const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + + /** + * Return the current index. + */ + simdjson_inline token_position position() const noexcept; + /** + * Reset to a previously saved index. + */ + simdjson_inline void set_position(token_position target_position) noexcept; + + // NOTE: we don't support a full C++ iterator interface, because we expect people to make + // different calls to advance the iterator based on *their own* state. + + simdjson_inline bool operator==(const token_iterator &other) const noexcept; + simdjson_inline bool operator!=(const token_iterator &other) const noexcept; + simdjson_inline bool operator>(const token_iterator &other) const noexcept; + simdjson_inline bool operator>=(const token_iterator &other) const noexcept; + simdjson_inline bool operator<(const token_iterator &other) const noexcept; + simdjson_inline bool operator<=(const token_iterator &other) const noexcept; + +protected: + simdjson_inline token_iterator(const uint8_t *buf, token_position position) noexcept; + + /** + * Get the index of the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_index(int32_t delta=0) const noexcept; + /** + * Get the index of the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. + * + */ + simdjson_inline uint32_t peek_index(token_position position) const noexcept; + + const uint8_t *buf{}; + token_position _position{}; + + friend class json_iterator; + friend class value_iterator; + friend class object; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::token_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H +/* end file simdjson/generic/ondemand/token_iterator.h for ppc64 */ +/* including simdjson/generic/ondemand/json_iterator.h for ppc64: #include "simdjson/generic/ondemand/json_iterator.h" */ +/* begin file simdjson/generic/ondemand/json_iterator.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * Iterates through JSON tokens, keeping track of depth and string buffer. + * + * @private This is not intended for external use. + */ +class json_iterator { +protected: + token_iterator token{}; + ondemand::parser *parser{}; + /** + * Next free location in the string buffer. + * + * Used by raw_json_string::unescape() to have a place to unescape strings to. + */ + uint8_t *_string_buf_loc{}; + /** + * JSON error, if there is one. + * + * INCORRECT_TYPE and NO_SUCH_FIELD are *not* stored here, ever. + * + * PERF NOTE: we *hope* this will be elided into control flow, as it is only used (a) in the first + * iteration of the loop, or (b) for the final iteration after a missing comma is found in ++. If + * this is not elided, we should make sure it's at least not using up a register. Failing that, + * we should store it in document so there's only one of them. + */ + error_code error{SUCCESS}; + /** + * Depth of the current token in the JSON. + * + * - 0 = finished with document + * - 1 = document root value (could be [ or {, not yet known) + * - 2 = , or } inside root array/object + * - 3 = key or value inside root array/object. + */ + depth_t _depth{}; + /** + * Beginning of the document indexes. + * Normally we have root == parser->implementation->structural_indexes.get() + * but this may differ, especially in streaming mode (where we have several + * documents); + */ + token_position _root{}; + /** + * Normally, a json_iterator operates over a single document, but in + * some cases, we may have a stream of documents. This attribute is meant + * as meta-data: the json_iterator works the same irrespective of the + * value of this attribute. + */ + bool _streaming{false}; + +public: + simdjson_inline json_iterator() noexcept = default; + simdjson_inline json_iterator(json_iterator &&other) noexcept; + simdjson_inline json_iterator &operator=(json_iterator &&other) noexcept; + simdjson_inline explicit json_iterator(const json_iterator &other) noexcept = default; + simdjson_inline json_iterator &operator=(const json_iterator &other) noexcept = default; + /** + * Skips a JSON value, whether it is a scalar, array or object. + */ + simdjson_warn_unused simdjson_inline error_code skip_child(depth_t parent_depth) noexcept; + + /** + * Tell whether the iterator is still at the start + */ + simdjson_inline bool at_root() const noexcept; + + /** + * Tell whether we should be expected to run in streaming + * mode (iterating over many documents). It is pure metadata + * that does not affect how the iterator works. It is used by + * start_root_array() and start_root_object(). + */ + simdjson_inline bool streaming() const noexcept; + + /** + * Get the root value iterator + */ + simdjson_inline token_position root_position() const noexcept; + /** + * Assert that we are at the document depth (== 1) + */ + simdjson_inline void assert_at_document_depth() const noexcept; + /** + * Assert that we are at the root of the document + */ + simdjson_inline void assert_at_root() const noexcept; + + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is live (has not been moved). + */ + simdjson_inline bool is_alive() const noexcept; + + /** + * Abandon this iterator, setting depth to 0 (as if the document is finished). + */ + simdjson_inline void abandon() noexcept; + + /** + * Advance the current token without modifying depth. + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; + + /** + * Returns true if there is a single token in the index (i.e., it is + * a JSON with a scalar value such as a single number). + * + * @return whether there is a single token + */ + simdjson_inline bool is_single_token() const noexcept; + + /** + * Assert that there are at least the given number of tokens left. + * + * Has no effect in release builds. + */ + simdjson_inline void assert_more_tokens(uint32_t required_tokens=1) const noexcept; + /** + * Assert that the given position addresses an actual token (is within bounds). + * + * Has no effect in release builds. + */ + simdjson_inline void assert_valid_position(token_position position) const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + /** + * Get a pointer to the current location in the input buffer. + * + * This is not null-terminated; it is a view into the JSON. + * + * You may be pointing outside of the input buffer: it is not generally + * safe to dereference this pointer. + */ + simdjson_inline const uint8_t *unsafe_pointer() const noexcept; + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token to retrieve. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token to retrieve. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + /** + * Get the JSON text for the last token in the document. + * + * This is not null-terminated; it is a view into the JSON. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek_last() const noexcept; + + /** + * Ascend one level. + * + * Validates that the depth - 1 == parent_depth. + * + * @param parent_depth the expected parent depth. + */ + simdjson_inline void ascend_to(depth_t parent_depth) noexcept; + + /** + * Descend one level. + * + * Validates that the new depth == child_depth. + * + * @param child_depth the expected child depth. + */ + simdjson_inline void descend_to(depth_t child_depth) noexcept; + simdjson_inline void descend_to(depth_t child_depth, int32_t delta) noexcept; + + /** + * Get current depth. + */ + simdjson_inline depth_t depth() const noexcept; + + /** + * Get current (writeable) location in the string buffer. + */ + simdjson_inline uint8_t *&string_buf_loc() noexcept; + + /** + * Report an unrecoverable error, preventing further iteration. + * + * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + /** + * Log error, but don't stop iteration. + * @param error The error to report. Must be INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code optional_error(error_code error, const char *message) noexcept; + + /** + * Take an input in json containing max_len characters and attempt to copy it over to tmpbuf, a buffer with + * N bytes of capacity. It will return false if N is too small (smaller than max_len) of if it is zero. + * The buffer (tmpbuf) is padded with space characters. + */ + simdjson_warn_unused simdjson_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept; + + simdjson_inline token_position position() const noexcept; + /** + * Write the raw_json_string to the string buffer and return a string_view. + * Each raw_json_string should be unescaped once, or else the string buffer might + * overflow. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, bool allow_replacement) noexcept; + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in) noexcept; + simdjson_inline void reenter_child(token_position position, depth_t child_depth) noexcept; + + simdjson_inline error_code consume_character(char c) noexcept; +#if SIMDJSON_DEVELOPMENT_CHECKS + simdjson_inline token_position start_position(depth_t depth) const noexcept; + simdjson_inline void set_start_position(depth_t depth, token_position position) noexcept; +#endif + + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Updates this json iterator so that it is back at the beginning of the document, + * as if it had just been created. + */ + inline void rewind() noexcept; + /** + * This checks whether the {,},[,] are balanced so that the document + * ends with proper zero depth. This requires scanning the whole document + * and it may be expensive. It is expected that it will be rarely called. + * It does not attempt to match { with } and [ with ]. + */ + inline bool balanced() const noexcept; +protected: + simdjson_inline json_iterator(const uint8_t *buf, ondemand::parser *parser) noexcept; + /// The last token before the end + simdjson_inline token_position last_position() const noexcept; + /// The token *at* the end. This points at gibberish and should only be used for comparison. + simdjson_inline token_position end_position() const noexcept; + /// The end of the buffer. + simdjson_inline token_position end() const noexcept; + + friend class document; + friend class document_stream; + friend class object; + friend class array; + friend class value; + friend class raw_json_string; + friend class parser; + friend class value_iterator; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; // json_iterator + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::json_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H +/* end file simdjson/generic/ondemand/json_iterator.h for ppc64 */ +/* including simdjson/generic/ondemand/json_type.h for ppc64: #include "simdjson/generic/ondemand/json_type.h" */ +/* begin file simdjson/generic/ondemand/json_type.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * The type of a JSON value. + */ +enum class json_type { + // Start at 1 to catch uninitialized / default values more easily + array=1, ///< A JSON array ( [ 1, 2, 3 ... ] ) + object, ///< A JSON object ( { "a": 1, "b" 2, ... } ) + number, ///< A JSON number ( 1 or -2.3 or 4.5e6 ...) + string, ///< A JSON string ( "a" or "hello world\n" ...) + boolean, ///< A JSON boolean (true or false) + null ///< A JSON null (null) +}; + +/** + * A type representing a JSON number. + * The design of the struct is deliberately straight-forward. All + * functions return standard values with no error check. + */ +struct number { + + /** + * return the automatically determined type of + * the number: number_type::floating_point_number, + * number_type::signed_integer or number_type::unsigned_integer. + * + * enum class number_type { + * floating_point_number=1, /// a binary64 number + * signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + * unsigned_integer /// a positive integer larger or equal to 1<<63 + * }; + */ + simdjson_inline ondemand::number_type get_number_type() const noexcept; + /** + * return true if the automatically determined type of + * the number is number_type::unsigned_integer. + */ + simdjson_inline bool is_uint64() const noexcept; + /** + * return the value as a uint64_t, only valid if is_uint64() is true. + */ + simdjson_inline uint64_t get_uint64() const noexcept; + simdjson_inline operator uint64_t() const noexcept; + + /** + * return true if the automatically determined type of + * the number is number_type::signed_integer. + */ + simdjson_inline bool is_int64() const noexcept; + /** + * return the value as a int64_t, only valid if is_int64() is true. + */ + simdjson_inline int64_t get_int64() const noexcept; + simdjson_inline operator int64_t() const noexcept; + + + /** + * return true if the automatically determined type of + * the number is number_type::floating_point_number. + */ + simdjson_inline bool is_double() const noexcept; + /** + * return the value as a double, only valid if is_double() is true. + */ + simdjson_inline double get_double() const noexcept; + simdjson_inline operator double() const noexcept; + + /** + * Convert the number to a double. Though it always succeed, the conversion + * may be lossy if the number cannot be represented exactly. + */ + simdjson_inline double as_double() const noexcept; + + +protected: + /** + * The next block of declaration is designed so that we can call the number parsing + * functions on a number type. They are protected and should never be used outside + * of the core simdjson library. + */ + friend class value_iterator; + template + friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer); + template + friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer); + template + friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer); + /** Store a signed 64-bit value to the number. */ + simdjson_inline void append_s64(int64_t value) noexcept; + /** Store an unsigned 64-bit value to the number. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + /** Store a double value to the number. */ + simdjson_inline void append_double(double value) noexcept; + /** Specifies that the value is a double, but leave it undefined. */ + simdjson_inline void skip_double() noexcept; + /** + * End of friend declarations. + */ + + /** + * Our attributes are a union type (size = 64 bits) + * followed by a type indicator. + */ + union { + double floating_point_number; + int64_t signed_integer; + uint64_t unsigned_integer; + } payload{0}; + number_type type{number_type::signed_integer}; +}; + +/** + * Write the JSON type to the output stream + * + * @param out The output stream. + * @param type The json_type. + */ +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept; + +#if SIMDJSON_EXCEPTIONS +/** + * Send JSON type to an output stream. + * + * @param out The output stream. + * @param type The json_type. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false); +#endif + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::json_type &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H +/* end file simdjson/generic/ondemand/json_type.h for ppc64 */ +/* including simdjson/generic/ondemand/raw_json_string.h for ppc64: #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * A string escaped per JSON rules, terminated with quote ("). They are used to represent + * unescaped keys inside JSON documents. + * + * (In other words, a pointer to the beginning of a string, just after the start quote, inside a + * JSON file.) + * + * This class is deliberately simplistic and has little functionality. You can + * compare a raw_json_string instance with an unescaped C string, but + * that is nearly all you can do. + * + * The raw_json_string is unescaped. If you wish to write an unescaped version of it to your own + * buffer, you may do so using the parser.unescape(string, buff) method, using an ondemand::parser + * instance. Doing so requires you to have a sufficiently large buffer. + * + * The raw_json_string instances originate typically from field instance which in turn represent + * key-value pairs from object instances. From a field instance, you get the raw_json_string + * instance by calling key(). You can, if you want a more usable string_view instance, call + * the unescaped_key() method on the field instance. You may also create a raw_json_string from + * any other string value, with the value.get_raw_json_string() method. Again, you can get + * a more usable string_view instance by calling get_string(). + * + */ +class raw_json_string { +public: + /** + * Create a new invalid raw_json_string. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline raw_json_string() noexcept = default; + + /** + * Create a new invalid raw_json_string pointed at the given location in the JSON. + * + * The given location must be just *after* the beginning quote (") in the JSON file. + * + * It *must* be terminated by a ", and be a valid JSON string. + */ + simdjson_inline raw_json_string(const uint8_t * _buf) noexcept; + /** + * Get the raw pointer to the beginning of the string in the JSON (just after the "). + * + * It is possible for this function to return a null pointer if the instance + * has outlived its existence. + */ + simdjson_inline const char * raw() const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done) on target.size() characters, + * and if the raw_json_string instance has a quote character at byte index target.size(). + * We never read more than length + 1 bytes in the raw_json_string instance. + * If length is smaller than target.size(), this will return false. + * + * The std::string_view instance may contain any characters. However, the caller + * is responsible for setting length so that length bytes may be read in the + * raw_json_string. + * + * Performance: the comparison may be done using memcmp which may be efficient + * for long strings. + */ + simdjson_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The std::string_view instance should not contain unescaped quote characters: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * Performance: the comparison is done byte-by-byte which might be inefficient for + * long strings. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The provided C string should not contain an unescaped quote character: + * the caller is responsible for this check. See is_free_from_unescaped_quote. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); + */ + simdjson_inline bool unsafe_is_equal(const char* target) const noexcept; + + /** + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(std::string_view target) const noexcept; + + /** + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + */ + simdjson_inline bool is_equal(const char* target) const noexcept; + + /** + * Returns true if target is free from unescaped quote. If target is known at + * compile-time, we might expect the computation to happen at compile time with + * many compilers (not all!). + */ + static simdjson_inline bool is_free_from_unescaped_quote(std::string_view target) noexcept; + static simdjson_inline bool is_free_from_unescaped_quote(const char* target) noexcept; + +private: + + + /** + * This will set the inner pointer to zero, effectively making + * this instance unusable. + */ + simdjson_inline void consume() noexcept { buf = nullptr; } + + /** + * Checks whether the inner pointer is non-null and thus usable. + */ + simdjson_inline simdjson_warn_unused bool alive() const noexcept { return buf != nullptr; } + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result will be a valid UTF-8. + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + * @param allow_replacement Whether we allow replacement of invalid surrogate pairs. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape(json_iterator &iter, bool allow_replacement) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result may not be a valid UTF-8. https://simonsapin.github.io/wtf-8/ + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. + */ + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(json_iterator &iter) const noexcept; + const uint8_t * buf{}; + friend class object; + friend class field; + friend class parser; + friend struct simdjson_result; +}; + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &, const raw_json_string &) noexcept; + +/** + * Comparisons between raw_json_string and std::string_view instances are potentially unsafe: the user is responsible + * for providing a string with no unescaped quote. Note that unescaped quotes cannot be present in valid JSON strings. + */ +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept; +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept; + + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::raw_json_string &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private + + simdjson_inline simdjson_result raw() const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape(ppc64::ondemand::json_iterator &iter, bool allow_replacement) const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(ppc64::ondemand::json_iterator &iter) const noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H +/* end file simdjson/generic/ondemand/raw_json_string.h for ppc64 */ +/* including simdjson/generic/ondemand/parser.h for ppc64: #include "simdjson/generic/ondemand/parser.h" */ +/* begin file simdjson/generic/ondemand/parser.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * The default batch size for document_stream instances for this On Demand kernel. + * Note that different On Demand kernel may use a different DEFAULT_BATCH_SIZE value + * in the future. + */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; + +/** + * A JSON fragment iterator. + * + * This holds the actual iterator as well as the buffer for writing strings. + */ +class parser { +public: + /** + * Create a JSON parser. + * + * The new parser will have zero capacity. + */ + inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; + + inline parser(parser &&other) noexcept = default; + simdjson_inline parser(const parser &other) = delete; + simdjson_inline parser &operator=(const parser &other) = delete; + simdjson_inline parser &operator=(parser &&other) noexcept = default; + + /** Deallocate the JSON parser. */ + inline ~parser() noexcept = default; + + /** + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * document doc = parser.iterate(json); + * + * It is expected that the content is a valid UTF-8 file, containing a valid JSON document. + * Otherwise the iterate method may return an error. In particular, the whole input should be + * valid: we do not attempt to tolerate incorrect content either before or after a JSON + * document. + * + * ### IMPORTANT: Validate what you use + * + * Calling iterate on an invalid JSON document may not immediately trigger an error. The call to + * iterate does not parse and validate the whole document. + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * @param len The length of the JSON. + * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING). + * + * @return The document, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate(padded_string_view json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const char *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(std::string_view json, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const std::string &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(padded_string &&json) & noexcept = delete; + + /** + * @private + * + * Start iterating an on-demand JSON document. + * + * ondemand::parser parser; + * json_iterator doc = parser.iterate(json); + * + * ### IMPORTANT: Buffer Lifetime + * + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. + * + * ### IMPORTANT: Document Lifetime + * + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. + * + * The ondemand::document instance holds the iterator. The document must remain in scope + * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * @param json The JSON to parse. + * + * @return The iterator, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. + */ + simdjson_warn_unused simdjson_result iterate_raw(padded_string_view json) & noexcept; + + + /** + * Parse a buffer containing many JSON documents. + * + * auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded; + * ondemand::parser parser; + * ondemand::document_stream docs = parser.iterate_many(json); + * for (auto & doc : docs) { + * std::cout << doc["foo"] << std::endl; + * } + * // Prints 1 2 3 + * + * No copy of the input buffer is made. + * + * The function is lazy: it may be that no more than one JSON document at a time is parsed. + * + * The caller is responsabile to ensure that the input string data remains unchanged and is + * not deleted during the loop. + * + * ### Format + * + * The buffer must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) + * + * documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. Documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with ASCII whitespace. + * + * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8). + * + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excessively small values may impact negatively the + * performance. + * + * ### REQUIRED: Buffer Padding + * + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. + * + * ### Threads + * + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The concatenated JSON to parse. + * @param len The length of the concatenated JSON. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 10MB, which has been a reasonable sweet spot in our tests. + * @param allow_comma_separated (defaults on false) This allows a mode where the documents are + * separated by commas instead of whitespace. It comes with a performance + * penalty because the entire document is indexed at once (and the document must be + * less than 4 GB), and there is no multithreading. In this mode, the batch_size parameter + * is effectively ignored, as it is set to at least the document size. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). + */ + inline simdjson_result iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const std::string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const std::string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const padded_string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const padded_string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_result iterate_many(const char *buf, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept = delete; + + /** The capacity of this parser (the largest document it can process). */ + simdjson_inline size_t capacity() const noexcept; + /** The maximum capacity of this parser (the largest document it is allowed to process). */ + simdjson_inline size_t max_capacity() const noexcept; + simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; + /** + * The maximum depth of this parser (the most deeply nested objects and arrays it can process). + * This parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + */ + simdjson_inline size_t max_depth() const noexcept; + + /** + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. + * + * The max_depth parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. + */ + simdjson_warn_unused error_code allocate(size_t capacity, size_t max_depth=DEFAULT_MAX_DEPTH) noexcept; + + #ifdef SIMDJSON_THREADS_ENABLED + /** + * The parser instance can use threads when they are available to speed up some + * operations. It is enabled by default. Changing this attribute will change the + * behavior of the parser for future operations. + */ + bool threaded{true}; + #endif + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result must be valid UTF-8. + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @param allow_replacement Whether we allow a replacement if the input string contains unmatched surrogate pairs. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement = false) const noexcept; + + /** + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result may not be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. + * + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. + */ + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept; + +private: + /** @private [for benchmarking access] The implementation to use */ + std::unique_ptr implementation{}; + size_t _capacity{0}; + size_t _max_capacity; + size_t _max_depth{DEFAULT_MAX_DEPTH}; + std::unique_ptr string_buf{}; +#if SIMDJSON_DEVELOPMENT_CHECKS + std::unique_ptr start_positions{}; +#endif + + friend class json_iterator; + friend class document_stream; +}; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::parser &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_H +/* end file simdjson/generic/ondemand/parser.h for ppc64 */ + +// All other declarations +/* including simdjson/generic/ondemand/array.h for ppc64: #include "simdjson/generic/ondemand/array.h" */ +/* begin file simdjson/generic/ondemand/array.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * A forward-only JSON array. + */ +class array { +public: + /** + * Create a new invalid array. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline array() noexcept = default; + + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() noexcept; + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an array is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the beginning of the array and checks whether the + * array is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result is_empty() & noexcept; + /** + * Reset the iterator so that we are pointing back at the + * beginning of the array. You should still consume values only once even if you + * can iterate through the array more than once. If you unescape a string + * within the array more than once, you have unsafe code. Note that rewinding + * an array means that you may need to reparse it anew: it is not a free + * operation. + * + * @returns true if the array contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/0/foo/a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an array + * instance: there is no rewind and no invalidation. + * + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the array and returns a string_view instance corresponding to the + * array as represented in JSON. It points inside the original document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + + /** + * Get the value at the given index. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; +protected: + /** + * Go to the end of the array, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + + /** + * Begin array iteration. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + */ + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + /** + * Begin array iteration from the root. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + * @error TAPE_ERROR if there is no closing ] at the end of the document. + */ + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + /** + * Begin array iteration. + * + * This version of the method should be called after the initial [ has been verified, and is + * intended for use by switch statements that check the type of a value. + * + * @param iter The iterator. Must be after the initial [. Will be *moved* into the resulting array. + */ + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + + /** + * Create an array at the given Internal array creation. Call array::start() or array::started() instead of this. + * + * @param iter The iterator. Must either be at the start of the first element with iter.is_alive() + * == true, or past the [] with is_alive() == false if the array is empty. Will be *moved* + * into the resulting array. + */ + simdjson_inline array(const value_iterator &iter) noexcept; + + /** + * Iterator marking current position. + * + * iter.is_alive() == false indicates iteration is complete. + */ + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; + friend struct simdjson_result; + friend class array_iterator; +}; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::array &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + inline simdjson_result count_elements() & noexcept; + inline simdjson_result is_empty() & noexcept; + inline simdjson_result reset() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_H +/* end file simdjson/generic/ondemand/array.h for ppc64 */ +/* including simdjson/generic/ondemand/array_iterator.h for ppc64: #include "simdjson/generic/ondemand/array_iterator.h" */ +/* begin file simdjson/generic/ondemand/array_iterator.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * A forward-only JSON array. + * + * This is an input_iterator, meaning: + * - It is forward-only + * - * must be called exactly once per element. + * - ++ must be called exactly once in between each * (*, ++, *, ++, * ...) + */ +class array_iterator { +public: + /** Create a new, invalid array iterator. */ + simdjson_inline array_iterator() noexcept = default; + + // + // Iterator interface + // + + /** + * Get the current element. + * + * Part of the std::iterator interface. + */ + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + /** + * Check if we are at the end of the JSON. + * + * Part of the std::iterator interface. + * + * @return true if there are no more elements in the JSON array. + */ + simdjson_inline bool operator==(const array_iterator &) const noexcept; + /** + * Check if there are more elements in the JSON array. + * + * Part of the std::iterator interface. + * + * @return true if there are more elements in the JSON array. + */ + simdjson_inline bool operator!=(const array_iterator &) const noexcept; + /** + * Move to the next element. + * + * Part of the std::iterator interface. + */ + simdjson_inline array_iterator &operator++() noexcept; + +private: + value_iterator iter{}; + + simdjson_inline array_iterator(const value_iterator &iter) noexcept; + + friend class array; + friend class value; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::array_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H +/* end file simdjson/generic/ondemand/array_iterator.h for ppc64 */ +/* including simdjson/generic/ondemand/document.h for ppc64: #include "simdjson/generic/ondemand/document.h" */ +/* begin file simdjson/generic/ondemand/document.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * A JSON document. It holds a json_iterator instance. + * + * Used by tokens to get text, and string buffer location. + * + * You must keep the document around during iteration. + */ +class document { +public: + /** + * Create a new invalid document. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline document() noexcept = default; + simdjson_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy + simdjson_inline document(document &&other) noexcept = default; + simdjson_inline document &operator=(const document &other) noexcept = delete; + simdjson_inline document &operator=(document &&other) noexcept = default; + + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. + */ + simdjson_inline simdjson_result get_array() & noexcept; + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. + */ + simdjson_inline simdjson_result get_object() & noexcept; + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64() noexcept; + /** + * Cast this JSON value (inside string) to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64() noexcept; + /** + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + */ + simdjson_inline simdjson_result get_int64_in_string() noexcept; + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double() noexcept; + + /** + * Cast this JSON value (inside string) to a double. + * + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + */ + simdjson_inline simdjson_result get_double_in_string() noexcept; + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Important: Calling get_string() twice on the same document is an error. + * + * @param Whether to allow a replacement character for unmatched surrogate pairs. + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + /** + * Cast this JSON value to a string. + * + * The string is not guaranteed to be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * + * Important: Calling get_wobbly_string() twice on the same document is an error. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_wobbly_string() noexcept; + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. + */ + simdjson_inline simdjson_result get_raw_json_string() noexcept; + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. + */ + simdjson_inline simdjson_result get_bool() noexcept; + /** + * Cast this JSON value to a value when the document is an object or an array. + * + * @returns A value if a JSON array or object cannot be found. + * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result get_value() noexcept; + + /** + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. + * + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + */ + simdjson_inline simdjson_result is_null() noexcept; + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() & noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + /** @overload template simdjson_result get() & noexcept */ + template simdjson_inline simdjson_result get() && noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value + * + * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances. + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) & noexcept; + /** @overload template error_code get(T &out) & noexcept */ + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + /** + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. + */ + simdjson_inline operator array() & noexcept(false); + /** + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. + */ + simdjson_inline operator object() & noexcept(false); + /** + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. + */ + simdjson_inline operator uint64_t() noexcept(false); + /** + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. + */ + simdjson_inline operator int64_t() noexcept(false); + /** + * Cast this JSON value to a double. + * + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + */ + simdjson_inline operator double() noexcept(false); + /** + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator std::string_view() noexcept(false); + /** + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. + */ + simdjson_inline operator raw_json_string() noexcept(false); + /** + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. + */ + simdjson_inline operator bool() noexcept(false); + /** + * Cast this JSON value to a value. + * + * @returns A value value. + * @exception if a JSON value cannot be found + */ + simdjson_inline operator value() noexcept(false); +#endif + /** + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + simdjson_inline simdjson_result count_elements() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) & noexcept; + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to + * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + + /** + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). + * + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result type() noexcept; + + /** + * Checks whether the document is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. + * + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + */ + simdjson_inline simdjson_result is_scalar() noexcept; + + /** + * Checks whether the document is a negative number. + * + * @returns true if the number if negative. + */ + simdjson_inline bool is_negative() noexcept; + /** + * Checks whether the document is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). + * + * @returns true if the number if negative. + */ + simdjson_inline simdjson_result is_integer() noexcept; + /** + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. + * + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). + * + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number + * + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. + * + * @returns the type of the number + */ + simdjson_inline simdjson_result get_number_type() noexcept; + + /** + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. + * + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. + * + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + */ + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + + /** + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. If this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view may be the padded buffer. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** + * Reset the iterator inside the document instance so we are pointing back at the + * beginning of the document, as if it had just been created. It invalidates all + * values, objects and arrays that you have created so far (including unescaped strings). + */ + inline void rewind() noexcept; + /** + * Returns debugging information. + */ + inline std::string to_debug_string() noexcept; + /** + * Some unrecoverable error conditions may render the document instance unusable. + * The is_alive() method returns true when the document is still suitable. + */ + inline bool is_alive() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Returns true if this document has been fully parsed. + * If you have consumed the whole document and at_end() returns + * false, then there may be trailing content. + */ + inline bool at_end() const noexcept; + + /** + * Returns the current depth in the document if in bounds. + * + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. + */ + simdjson_inline int32_t current_depth() const noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() automatically calls rewind between each call. Thus + * all values, objects and arrays that you have created so far (including unescaped strings) + * are invalidated. After calling at_pointer, you need to consume the result: string values + * should be stored in your own variables, arrays should be decoded and stored in your own array-like + * structures and so forth. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + * - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + /** + * Consumes the document and returns a string_view instance corresponding to the + * document as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; +protected: + /** + * Consumes the document. + */ + simdjson_inline error_code consume() noexcept; + + simdjson_inline document(ondemand::json_iterator &&iter) noexcept; + simdjson_inline const uint8_t *text(uint32_t idx) const noexcept; + + simdjson_inline value_iterator resume_value_iterator() noexcept; + simdjson_inline value_iterator get_root_value_iterator() noexcept; + simdjson_inline simdjson_result start_or_resume_object() noexcept; + static simdjson_inline document start(ondemand::json_iterator &&iter) noexcept; + + // + // Fields + // + json_iterator iter{}; ///< Current position in the document + static constexpr depth_t DOCUMENT_DEPTH = 0; ///< document depth is always 0 + + friend class array_iterator; + friend class value; + friend class ondemand::parser; + friend class object; + friend class array; + friend class field; + friend class token; + friend class document_stream; + friend class document_reference; +}; + + +/** + * A document_reference is a thin wrapper around a document reference instance. + */ +class document_reference { +public: + simdjson_inline document_reference() noexcept; + simdjson_inline document_reference(document &d) noexcept; + simdjson_inline document_reference(const document_reference &other) noexcept = default; + simdjson_inline document_reference& operator=(const document_reference &other) noexcept = default; + simdjson_inline void rewind() noexcept; + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + + simdjson_inline simdjson_result is_null() noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + simdjson_inline operator document&() const noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator array() & noexcept(false); + simdjson_inline operator object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + simdjson_inline simdjson_result raw_json_token() noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +private: + document *doc{nullptr}; +}; +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::document &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() & noexcept; + template simdjson_inline simdjson_result get() && noexcept; + + template simdjson_inline error_code get(T &out) & noexcept; + template simdjson_inline error_code get(T &out) && noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator ppc64::ondemand::array() & noexcept(false); + simdjson_inline operator ppc64::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator ppc64::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator ppc64::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool at_end() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + + + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::document_reference value, error_code error) noexcept; + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator ppc64::ondemand::array() & noexcept(false); + simdjson_inline operator ppc64::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator ppc64::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator ppc64::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document_reference::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H +/* end file simdjson/generic/ondemand/document.h for ppc64 */ +/* including simdjson/generic/ondemand/document_stream.h for ppc64: #include "simdjson/generic/ondemand/document_stream.h" */ +/* begin file simdjson/generic/ondemand/document_stream.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#ifdef SIMDJSON_THREADS_ENABLED +#include +#include +#include +#endif + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED +/** @private Custom worker class **/ +struct stage1_worker { + stage1_worker() noexcept = default; + stage1_worker(const stage1_worker&) = delete; + stage1_worker(stage1_worker&&) = delete; + stage1_worker operator=(const stage1_worker&) = delete; + ~stage1_worker(); + /** + * We only start the thread when it is needed, not at object construction, this may throw. + * You should only call this once. + **/ + void start_thread(); + /** + * Start a stage 1 job. You should first call 'run', then 'finish'. + * You must call start_thread once before. + */ + void run(document_stream * ds, parser * stage1, size_t next_batch_start); + /** Wait for the run to finish (blocking). You should first call 'run', then 'finish'. **/ + void finish(); + +private: + + /** + * Normally, we would never stop the thread. But we do in the destructor. + * This function is only safe assuming that you are not waiting for results. You + * should have called run, then finish, and be done. + **/ + void stop_thread(); + + std::thread thread{}; + /** These three variables define the work done by the thread. **/ + ondemand::parser * stage1_thread_parser{}; + size_t _next_batch_start{}; + document_stream * owner{}; + /** + * We have two state variables. This could be streamlined to one variable in the future but + * we use two for clarity. + */ + bool has_work{false}; + bool can_work{true}; + + /** + * We lock using a mutex. + */ + std::mutex locking_mutex{}; + std::condition_variable cond_var{}; + + friend class document_stream; +}; +#endif // SIMDJSON_THREADS_ENABLED + +/** + * A forward-only stream of documents. + * + * Produced by parser::iterate_many. + * + */ +class document_stream { +public: + /** + * Construct an uninitialized document_stream. + * + * ```c++ + * document_stream docs; + * auto error = parser.iterate_many(json).get(docs); + * ``` + */ + simdjson_inline document_stream() noexcept; + /** Move one document_stream to another. */ + simdjson_inline document_stream(document_stream &&other) noexcept = default; + /** Move one document_stream to another. */ + simdjson_inline document_stream &operator=(document_stream &&other) noexcept = default; + + simdjson_inline ~document_stream() noexcept; + + /** + * Returns the input size in bytes. + */ + inline size_t size_in_bytes() const noexcept; + + /** + * After iterating through the stream, this method + * returns the number of bytes that were not parsed at the end + * of the stream. If truncated_bytes() differs from zero, + * then the input was truncated maybe because incomplete JSON + * documents were found at the end of the stream. You + * may need to process the bytes in the interval [size_in_bytes()-truncated_bytes(), size_in_bytes()). + * + * You should only call truncated_bytes() after streaming through all + * documents, like so: + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto & doc : stream) { + * // do something with doc + * } + * size_t truncated = stream.truncated_bytes(); + * + */ + inline size_t truncated_bytes() const noexcept; + + class iterator { + public: + using value_type = simdjson_result; + using reference = value_type; + + using difference_type = std::ptrdiff_t; + + using iterator_category = std::input_iterator_tag; + + /** + * Default constructor. + */ + simdjson_inline iterator() noexcept; + /** + * Get the current document (or error). + */ + simdjson_inline simdjson_result operator*() noexcept; + /** + * Advance to the next document (prefix). + */ + inline iterator& operator++() noexcept; + /** + * Check if we're at the end yet. + * @param other the end iterator to compare to. + */ + simdjson_inline bool operator!=(const iterator &other) const noexcept; + /** + * @private + * + * Gives the current index in the input document in bytes. + * + * document_stream stream = parser.parse_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * auto doc = *i; + * size_t index = i.current_index(); + * } + * + * This function (current_index()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + */ + simdjson_inline size_t current_index() const noexcept; + + /** + * @private + * + * Gives a view of the current document at the current position. + * + * document_stream stream = parser.iterate_many(json,window); + * for(auto i = stream.begin(); i != stream.end(); ++i) { + * std::string_view v = i.source(); + * } + * + * The returned string_view instance is simply a map to the (unparsed) + * source string: it may thus include white-space characters and all manner + * of padding. + * + * This function (source()) is experimental and the usage + * may change in future versions of simdjson: we find the API somewhat + * awkward and we would like to offer something friendlier. + * + */ + simdjson_inline std::string_view source() const noexcept; + + /** + * Returns error of the stream (if any). + */ + inline error_code error() const noexcept; + + private: + simdjson_inline iterator(document_stream *s, bool finished) noexcept; + /** The document_stream we're iterating through. */ + document_stream* stream; + /** Whether we're finished or not. */ + bool finished; + + friend class document; + friend class document_stream; + friend class json_iterator; + }; + + /** + * Start iterating the documents in the stream. + */ + simdjson_inline iterator begin() noexcept; + /** + * The end of the stream, for iterator comparison purposes. + */ + simdjson_inline iterator end() noexcept; + +private: + + document_stream &operator=(const document_stream &) = delete; // Disallow copying + document_stream(const document_stream &other) = delete; // Disallow copying + + /** + * Construct a document_stream. Does not allocate or parse anything until the iterator is + * used. + * + * @param parser is a reference to the parser instance used to generate this document_stream + * @param buf is the raw byte buffer we need to process + * @param len is the length of the raw byte buffer in bytes + * @param batch_size is the size of the windows (must be strictly greater or equal to the largest JSON document) + */ + simdjson_inline document_stream( + ondemand::parser &parser, + const uint8_t *buf, + size_t len, + size_t batch_size, + bool allow_comma_separated + ) noexcept; + + /** + * Parse the first document in the buffer. Used by begin(), to handle allocation and + * initialization. + */ + inline void start() noexcept; + + /** + * Parse the next document found in the buffer previously given to document_stream. + * + * The content should be a valid JSON document encoded as UTF-8. If there is a + * UTF-8 BOM, the caller is responsible for omitting it, UTF-8 BOM are + * discouraged. + * + * You do NOT need to pre-allocate a parser. This function takes care of + * pre-allocating a capacity defined by the batch_size defined when creating the + * document_stream object. + * + * The function returns simdjson::EMPTY if there is no more data to be parsed. + * + * The function returns simdjson::SUCCESS (as integer = 0) in case of success + * and indicates that the buffer has successfully been parsed to the end. + * Every document it contained has been parsed without error. + * + * The function returns an error code from simdjson/simdjson.h in case of failure + * such as simdjson::CAPACITY, simdjson::MEMALLOC, simdjson::DEPTH_ERROR and so forth; + * the simdjson::error_message function converts these error codes into a string). + * + * You can also check validity by calling parser.is_valid(). The same parser can + * and should be reused for the other documents in the buffer. + */ + inline void next() noexcept; + + /** Move the json_iterator of the document to the location of the next document in the stream. */ + inline void next_document() noexcept; + + /** Get the next document index. */ + inline size_t next_batch_start() const noexcept; + + /** Pass the next batch through stage 1 with the given parser. */ + inline error_code run_stage1(ondemand::parser &p, size_t batch_start) noexcept; + + // Fields + ondemand::parser *parser; + const uint8_t *buf; + size_t len; + size_t batch_size; + bool allow_comma_separated; + /** + * We are going to use just one document instance. The document owns + * the json_iterator. It implies that we only ever pass a reference + * to the document to the users. + */ + document doc{}; + /** The error (or lack thereof) from the current document. */ + error_code error; + size_t batch_start{0}; + size_t doc_index{}; + + #ifdef SIMDJSON_THREADS_ENABLED + /** Indicates whether we use threads. Note that this needs to be a constant during the execution of the parsing. */ + bool use_thread; + + inline void load_from_stage1_thread() noexcept; + + /** Start a thread to run stage 1 on the next batch. */ + inline void start_stage1_thread() noexcept; + + /** Wait for the stage 1 thread to finish and capture the results. */ + inline void finish_stage1_thread() noexcept; + + /** The error returned from the stage 1 thread. */ + error_code stage1_thread_error{UNINITIALIZED}; + /** The thread used to run stage 1 against the next batch in the background. */ + std::unique_ptr worker{new(std::nothrow) stage1_worker()}; + /** + * The parser used to run stage 1 in the background. Will be swapped + * with the regular parser when finished. + */ + ondemand::parser stage1_thread_parser{}; + + friend struct stage1_worker; + #endif // SIMDJSON_THREADS_ENABLED + + friend class parser; + friend class document; + friend class json_iterator; + friend struct simdjson_result; + friend struct internal::simdjson_result_base; +}; // document_stream + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::document_stream &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H +/* end file simdjson/generic/ondemand/document_stream.h for ppc64 */ +/* including simdjson/generic/ondemand/field.h for ppc64: #include "simdjson/generic/ondemand/field.h" */ +/* begin file simdjson/generic/ondemand/field.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * A JSON field (key/value pair) in an object. + * + * Returned from object iteration. + * + * Extends from std::pair so you can use C++ algorithms that rely on pairs. + */ +class field : public std::pair { +public: + /** + * Create a new invalid field. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline field() noexcept; + + /** + * Get the key as a string_view (for higher speed, consider raw_key). + * We deliberately use a more cumbersome name (unescaped_key) to force users + * to think twice about using it. + * + * This consumes the key: once you have called unescaped_key(), you cannot + * call it again nor can you call key(). + */ + simdjson_inline simdjson_warn_unused simdjson_result unescaped_key(bool allow_replacement) noexcept; + /** + * Get the key as a raw_json_string. Can be used for direct comparison with + * an unescaped C string: e.g., key() == "test". + */ + simdjson_inline raw_json_string key() const noexcept; + /** + * Get the field value. + */ + simdjson_inline ondemand::value &value() & noexcept; + /** + * @overload ondemand::value &ondemand::value() & noexcept + */ + simdjson_inline ondemand::value value() && noexcept; + +protected: + simdjson_inline field(raw_json_string key, ondemand::value &&value) noexcept; + static simdjson_inline simdjson_result start(value_iterator &parent_iter) noexcept; + static simdjson_inline simdjson_result start(const value_iterator &parent_iter, raw_json_string key) noexcept; + friend struct simdjson_result; + friend class object_iterator; +}; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::field &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result unescaped_key(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result key() noexcept; + simdjson_inline simdjson_result value() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_H +/* end file simdjson/generic/ondemand/field.h for ppc64 */ +/* including simdjson/generic/ondemand/object.h for ppc64: #include "simdjson/generic/ondemand/object.h" */ +/* begin file simdjson/generic/ondemand/object.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +/** + * A forward-only JSON object field iterator. + */ +class object { +public: + /** + * Create a new invalid object. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a + * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an object + * instance: there is no rewind and no invalidation. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + + /** + * Reset the iterator so that we are pointing back at the + * beginning of the object. You should still consume values only once even if you + * can iterate through the object more than once. If you unescape a string within + * the object more than once, you have unsafe code. Note that rewinding an object + * means that you may need to reparse it anew: it is not a free operation. + * + * @returns true if the object contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * This method scans the beginning of the object and checks whether the + * object is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + inline simdjson_result is_empty() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Consumes the object and returns a string_view instance corresponding to the + * object as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + +protected: + /** + * Go to the end of the object, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + static simdjson_inline object resume(const value_iterator &iter) noexcept; + simdjson_inline object(const value_iterator &iter) noexcept; + + simdjson_warn_unused simdjson_inline error_code find_field_raw(const std::string_view key) noexcept; + + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::object &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + inline simdjson_result reset() noexcept; + inline simdjson_result is_empty() noexcept; + inline simdjson_result count_fields() & noexcept; + inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_H +/* end file simdjson/generic/ondemand/object.h for ppc64 */ +/* including simdjson/generic/ondemand/object_iterator.h for ppc64: #include "simdjson/generic/ondemand/object_iterator.h" */ +/* begin file simdjson/generic/ondemand/object_iterator.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +class object_iterator { +public: + /** + * Create a new invalid object_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object_iterator() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline simdjson_result operator*() noexcept; + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const object_iterator &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const object_iterator &) const noexcept; + // Checks for ']' and ',' + simdjson_inline object_iterator &operator++() noexcept; + +private: + /** + * The underlying JSON iterator. + * + * PERF NOTE: expected to be elided in favor of the parent document: this is set when the object + * is first used, and never changes afterwards. + */ + value_iterator iter{}; + + simdjson_inline object_iterator(const value_iterator &iter) noexcept; + friend struct simdjson_result; + friend class object; +}; + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public ppc64::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(ppc64::ondemand::object_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + // Checks for ']' and ',' + simdjson_inline simdjson_result &operator++() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H +/* end file simdjson/generic/ondemand/object_iterator.h for ppc64 */ +/* including simdjson/generic/ondemand/serialization.h for ppc64: #include "simdjson/generic/ondemand/serialization.h" */ +/* begin file simdjson/generic/ondemand/serialization.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +/** + * Create a string-view instance out of a document instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(ppc64::ondemand::document& x) noexcept; +/** + * Create a string-view instance out of a value instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. The value must + * not have been accessed previously. It does not + * validate the content. + */ +inline simdjson_result to_json_string(ppc64::ondemand::value& x) noexcept; +/** + * Create a string-view instance out of an object instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(ppc64::ondemand::object& x) noexcept; +/** + * Create a string-view instance out of an array instance. The string-view instance + * contains JSON text that is suitable to be parsed as JSON again. It does not + * validate the content. + */ +inline simdjson_result to_json_string(ppc64::ondemand::array& x) noexcept; +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +} // namespace simdjson + +/** + * We want to support argument-dependent lookup (ADL). + * Hence we should define operator<< in the namespace + * where the argument (here value, object, etc.) resides. + * Credit: @madhur4127 + * See https://github.com/simdjson/simdjson/issues/1768 + */ +namespace simdjson { namespace ppc64 { namespace ondemand { + +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The element. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::value x); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::array value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The array. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::document& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::document_reference& value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +#endif +/** + * Print JSON to an output stream. It does not + * validate the content. + * + * @param out The output stream. + * @param value The object. + * @throw if there is an error with the underlying output stream. simdjson itself will not throw. + */ +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::object value); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +#endif +}}} // namespace simdjson::ppc64::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H +/* end file simdjson/generic/ondemand/serialization.h for ppc64 */ + +// Inline definitions +/* including simdjson/generic/ondemand/array-inl.h for ppc64: #include "simdjson/generic/ondemand/array-inl.h" */ +/* begin file simdjson/generic/ondemand/array-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter->depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the array is first found and the iterator is just past the `{`. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the `,` before the next value (or `]`). In this state, +// depth == iter->depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter->depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter->depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the array iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet element may be missing or not be an +// array--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter->depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between elements, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter->depth == depth, and at_start == false. +// +// ## Terminal State +// +// The terminal state has iter->depth < depth. at_start is always false. +// +// - Finished: When we have reached a `]` or have reported an error, we are finished. We signal this +// by decrementing depth. In this state, iter->depth < depth, at_start == false, and +// error == SUCCESS. +// + +simdjson_inline array::array(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} + +simdjson_inline simdjson_result array::start(value_iterator &iter) noexcept { + // We don't need to know if the array is empty to start iteration, but we do want to know if there + // is an error--thus `simdjson_unused`. + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::start_root(value_iterator &iter) noexcept { + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_root_array().get(has_value) ); + return array(iter); +} +simdjson_inline simdjson_result array::started(value_iterator &iter) noexcept { + bool has_value; + SIMDJSON_TRY(iter.started_array().get(has_value)); + return array(iter); +} + +simdjson_inline simdjson_result array::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return array_iterator(iter); +} +simdjson_inline simdjson_result array::end() noexcept { + return array_iterator(iter); +} +simdjson_inline error_code array::consume() noexcept { + auto error = iter.json_iter().skip_child(iter.depth()-1); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result array::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter._json_iter->unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline simdjson_result array::count_elements() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the array after counting the number of elements. + iter.reset_array(); + return count; +} +SIMDJSON_POP_DISABLE_WARNINGS + +simdjson_inline simdjson_result array::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_array().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +inline simdjson_result array::reset() & noexcept { + return iter.reset_array(); +} + +inline simdjson_result array::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } + + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } + + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" + + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + // Get the child + auto child = at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; + } + + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); + } + return child; +} + +simdjson_inline simdjson_result array::at(size_t index) noexcept { + size_t i = 0; + for (auto value : *this) { + if (i == index) { return value; } + i++; + } + return INDEX_OUT_OF_BOUNDS; +} + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + ppc64::ondemand::array &&value +) noexcept + : implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept + : implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::is_empty() & noexcept { + if (error()) { return error(); } + return first.is_empty(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); +} +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H +/* end file simdjson/generic/ondemand/array-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/array_iterator-inl.h for ppc64: #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/array_iterator-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result array_iterator::operator*() noexcept { + if (iter.error()) { iter.abandon(); return iter.error(); } + return value(iter.child()); +} +simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept { + return iter.is_open(); +} +simdjson_inline array_iterator &array_iterator::operator++() noexcept { + error_code error; + // PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here. + // However, it does not seem to make a perf difference, so we add it out of an abundance of caution. + if (( error = iter.error() )) { return *this; } + if (( error = iter.skip_child() )) { return *this; } + if (( error = iter.has_next_element().error() )) { return *this; } + return *this; +} + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + ppc64::ondemand::array_iterator &&value +) noexcept + : ppc64::implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : ppc64::implementation_simdjson_result_base({}, error) +{ +} + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++(first); + return *this; +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/array_iterator-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/document-inl.h for ppc64: #include "simdjson/generic/ondemand/document-inl.h" */ +/* begin file simdjson/generic/ondemand/document-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +simdjson_inline document::document(ondemand::json_iterator &&_iter) noexcept + : iter{std::forward(_iter)} +{ + logger::log_start_value(iter, "document"); +} + +simdjson_inline document document::start(json_iterator &&iter) noexcept { + return document(std::forward(iter)); +} + +inline void document::rewind() noexcept { + iter.rewind(); +} + +inline std::string document::to_debug_string() noexcept { + return iter.to_string(); +} + +inline simdjson_result document::current_location() const noexcept { + return iter.current_location(); +} + +inline int32_t document::current_depth() const noexcept { + return iter.depth(); +} + +inline bool document::at_end() const noexcept { + return iter.at_end(); +} + + +inline bool document::is_alive() noexcept { + return iter.is_alive(); +} +simdjson_inline value_iterator document::resume_value_iterator() noexcept { + return value_iterator(&iter, 1, iter.root_position()); +} +simdjson_inline value_iterator document::get_root_value_iterator() noexcept { + return resume_value_iterator(); +} +simdjson_inline simdjson_result document::start_or_resume_object() noexcept { + if (iter.at_root()) { + return get_object(); + } else { + return object::resume(resume_value_iterator()); + } +} +simdjson_inline simdjson_result document::get_value() noexcept { + // Make sure we start any arrays or objects before returning, so that start_root_() + // gets called. + iter.assert_at_document_depth(); + switch (*iter.peek()) { + case '[': { + // The following lines check that the document ends with ]. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_array(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + case '{': { + // The following lines would check that the document ends with }. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_object(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + default: + // Unfortunately, scalar documents are a special case in simdjson and they cannot + // be safely converted to value instances. + return SCALAR_DOCUMENT_AS_VALUE; + } +} +simdjson_inline simdjson_result document::get_array() & noexcept { + auto value = get_root_value_iterator(); + return array::start_root(value); +} +simdjson_inline simdjson_result document::get_object() & noexcept { + auto value = get_root_value_iterator(); + return object::start_root(value); +} + +/** + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. We want to disallow trailing + * content. + * Thus, in several implementations below, we pass a 'true' parameter value to + * a get_root_value_iterator() method: this indicates that we disallow trailing content. + */ + +simdjson_inline simdjson_result document::get_uint64() noexcept { + return get_root_value_iterator().get_root_uint64(true); +} +simdjson_inline simdjson_result document::get_uint64_in_string() noexcept { + return get_root_value_iterator().get_root_uint64_in_string(true); +} +simdjson_inline simdjson_result document::get_int64() noexcept { + return get_root_value_iterator().get_root_int64(true); +} +simdjson_inline simdjson_result document::get_int64_in_string() noexcept { + return get_root_value_iterator().get_root_int64_in_string(true); +} +simdjson_inline simdjson_result document::get_double() noexcept { + return get_root_value_iterator().get_root_double(true); +} +simdjson_inline simdjson_result document::get_double_in_string() noexcept { + return get_root_value_iterator().get_root_double_in_string(true); +} +simdjson_inline simdjson_result document::get_string(bool allow_replacement) noexcept { + return get_root_value_iterator().get_root_string(true, allow_replacement); +} +simdjson_inline simdjson_result document::get_wobbly_string() noexcept { + return get_root_value_iterator().get_root_wobbly_string(true); +} +simdjson_inline simdjson_result document::get_raw_json_string() noexcept { + return get_root_value_iterator().get_root_raw_json_string(true); +} +simdjson_inline simdjson_result document::get_bool() noexcept { + return get_root_value_iterator().get_root_bool(true); +} +simdjson_inline simdjson_result document::is_null() noexcept { + return get_root_value_iterator().is_root_null(true); +} + +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_array(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_object(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_double(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_bool(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_value(); } + +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_double(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_uint64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_int64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_bool(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_value(); } + +template simdjson_inline error_code document::get(T &out) & noexcept { + return get().get(out); +} +template simdjson_inline error_code document::get(T &out) && noexcept { + return std::forward(*this).get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document::operator array() & noexcept(false) { return get_array(); } +simdjson_inline document::operator object() & noexcept(false) { return get_object(); } +simdjson_inline document::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document::operator double() noexcept(false) { return get_double(); } +simdjson_inline document::operator std::string_view() noexcept(false) { return get_string(false); } +simdjson_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); } +simdjson_inline document::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document::operator value() noexcept(false) { return get_value(); } + +#endif +simdjson_inline simdjson_result document::count_elements() & noexcept { + auto a = get_array(); + simdjson_result answer = a.count_elements(); + /* If there was an array, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::count_fields() & noexcept { + auto a = get_object(); + simdjson_result answer = a.count_fields(); + /* If there was an object, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::at(size_t index) & noexcept { + auto a = get_array(); + return a.at(index); +} +simdjson_inline simdjson_result document::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result document::end() & noexcept { + return {}; +} + +simdjson_inline simdjson_result document::find_field(std::string_view key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field(const char *key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field_unordered(std::string_view key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::find_field_unordered(const char *key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::operator[](std::string_view key) & noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result document::operator[](const char *key) & noexcept { + return start_or_resume_object()[key]; +} + +simdjson_inline error_code document::consume() noexcept { + auto error = iter.skip_child(0); + if(error) { iter.abandon(); } + return error; +} + +simdjson_inline simdjson_result document::raw_json() noexcept { + auto _iter = get_root_value_iterator(); + const uint8_t * starting_point{_iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter.unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +} + +simdjson_inline simdjson_result document::type() noexcept { + return get_root_value_iterator().type(); +} + +simdjson_inline simdjson_result document::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} + +simdjson_inline bool document::is_negative() noexcept { + return get_root_value_iterator().is_root_negative(); +} + +simdjson_inline simdjson_result document::is_integer() noexcept { + return get_root_value_iterator().is_root_integer(true); +} + +simdjson_inline simdjson_result document::get_number_type() noexcept { + return get_root_value_iterator().get_root_number_type(true); +} + +simdjson_inline simdjson_result document::get_number() noexcept { + return get_root_value_iterator().get_root_number(true); +} + + +simdjson_inline simdjson_result document::raw_json_token() noexcept { + auto _iter = get_root_value_iterator(); + return std::string_view(reinterpret_cast(_iter.peek_start()), _iter.peek_start_length()); +} + +simdjson_inline simdjson_result document::at_pointer(std::string_view json_pointer) noexcept { + rewind(); // Rewind the document each time at_pointer is called + if (json_pointer.empty()) { + return this->get_value(); + } + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; + } +} + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + ppc64::ondemand::document &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base( + error + ) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} + +template +simdjson_inline simdjson_result simdjson_result::get() & noexcept { + if (error()) { return error(); } + return first.get(); +} +template +simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first).get(); +} +template +simdjson_inline error_code simdjson_result::get(T &out) & noexcept { + if (error()) { return error(); } + return first.get(out); +} +template +simdjson_inline error_code simdjson_result::get(T &out) && noexcept { + if (error()) { return error(); } + return std::forward(first).get(out); +} + +template<> simdjson_inline simdjson_result simdjson_result::get() & noexcept = delete; +template<> simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first); +} +template<> simdjson_inline error_code simdjson_result::get(ppc64::ondemand::document &out) & noexcept = delete; +template<> simdjson_inline error_code simdjson_result::get(ppc64::ondemand::document &out) && noexcept { + if (error()) { return error(); } + out = std::forward(first); + return SUCCESS; +} + +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} + +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} + + +simdjson_inline bool simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} + +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} + +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} + +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} + + +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator ppc64::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator ppc64::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator ppc64::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator ppc64::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline bool simdjson_result::at_end() const noexcept { + if (error()) { return error(); } + return first.at_end(); +} + + +simdjson_inline int32_t simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +simdjson_inline document_reference::document_reference() noexcept : doc{nullptr} {} +simdjson_inline document_reference::document_reference(document &d) noexcept : doc(&d) {} +simdjson_inline void document_reference::rewind() noexcept { doc->rewind(); } +simdjson_inline simdjson_result document_reference::get_array() & noexcept { return doc->get_array(); } +simdjson_inline simdjson_result document_reference::get_object() & noexcept { return doc->get_object(); } +/** + * The document_reference instances are used primarily/solely for streams of JSON + * documents. + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. + * + * However, for streams of JSON documents, we want to be able to start from + * "321" "321" "321" + * and parse it successfully as a stream of JSON documents, calling get_uint64_in_string() + * successfully each time. + * + * To achieve this result, we pass a 'false' to a get_root_value_iterator() method: + * this indicates that we allow trailing content. + */ +simdjson_inline simdjson_result document_reference::get_uint64() noexcept { return doc->get_root_value_iterator().get_root_uint64(false); } +simdjson_inline simdjson_result document_reference::get_uint64_in_string() noexcept { return doc->get_root_value_iterator().get_root_uint64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_int64() noexcept { return doc->get_root_value_iterator().get_root_int64(false); } +simdjson_inline simdjson_result document_reference::get_int64_in_string() noexcept { return doc->get_root_value_iterator().get_root_int64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_double() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_double_in_string() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_string(bool allow_replacement) noexcept { return doc->get_root_value_iterator().get_root_string(false, allow_replacement); } +simdjson_inline simdjson_result document_reference::get_wobbly_string() noexcept { return doc->get_root_value_iterator().get_root_wobbly_string(false); } +simdjson_inline simdjson_result document_reference::get_raw_json_string() noexcept { return doc->get_root_value_iterator().get_root_raw_json_string(false); } +simdjson_inline simdjson_result document_reference::get_bool() noexcept { return doc->get_root_value_iterator().get_root_bool(false); } +simdjson_inline simdjson_result document_reference::get_value() noexcept { return doc->get_value(); } +simdjson_inline simdjson_result document_reference::is_null() noexcept { return doc->get_root_value_iterator().is_root_null(false); } + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document_reference::operator array() & noexcept(false) { return array(*doc); } +simdjson_inline document_reference::operator object() & noexcept(false) { return object(*doc); } +simdjson_inline document_reference::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document_reference::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document_reference::operator double() noexcept(false) { return get_double(); } +simdjson_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); } +simdjson_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); } +simdjson_inline document_reference::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document_reference::operator value() noexcept(false) { return value(*doc); } +#endif +simdjson_inline simdjson_result document_reference::count_elements() & noexcept { return doc->count_elements(); } +simdjson_inline simdjson_result document_reference::count_fields() & noexcept { return doc->count_fields(); } +simdjson_inline simdjson_result document_reference::at(size_t index) & noexcept { return doc->at(index); } +simdjson_inline simdjson_result document_reference::begin() & noexcept { return doc->begin(); } +simdjson_inline simdjson_result document_reference::end() & noexcept { return doc->end(); } +simdjson_inline simdjson_result document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::type() noexcept { return doc->type(); } +simdjson_inline simdjson_result document_reference::is_scalar() noexcept { return doc->is_scalar(); } +simdjson_inline simdjson_result document_reference::current_location() noexcept { return doc->current_location(); } +simdjson_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); } +simdjson_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); } +simdjson_inline simdjson_result document_reference::is_integer() noexcept { return doc->get_root_value_iterator().is_root_integer(false); } +simdjson_inline simdjson_result document_reference::get_number_type() noexcept { return doc->get_root_value_iterator().get_root_number_type(false); } +simdjson_inline simdjson_result document_reference::get_number() noexcept { return doc->get_root_value_iterator().get_root_number(false); } +simdjson_inline simdjson_result document_reference::raw_json_token() noexcept { return doc->raw_json_token(); } +simdjson_inline simdjson_result document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); } +simdjson_inline simdjson_result document_reference::raw_json() noexcept { return doc->raw_json();} +simdjson_inline document_reference::operator document&() const noexcept { return *doc; } + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + + + +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(ppc64::ondemand::document_reference value, error_code error) + noexcept : implementation_simdjson_result_base(std::forward(value), error) {} + + +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator ppc64::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator ppc64::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator ppc64::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator ppc64::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif + +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); +} + +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} + + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H +/* end file simdjson/generic/ondemand/document-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/document_stream-inl.h for ppc64: #include "simdjson/generic/ondemand/document_stream-inl.h" */ +/* begin file simdjson/generic/ondemand/document_stream-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void stage1_worker::finish() { + // After calling "run" someone would call finish() to wait + // for the end of the processing. + // This function will wait until either the thread has done + // the processing or, else, the destructor has been called. + std::unique_lock lock(locking_mutex); + cond_var.wait(lock, [this]{return has_work == false;}); +} + +inline stage1_worker::~stage1_worker() { + // The thread may never outlive the stage1_worker instance + // and will always be stopped/joined before the stage1_worker + // instance is gone. + stop_thread(); +} + +inline void stage1_worker::start_thread() { + std::unique_lock lock(locking_mutex); + if(thread.joinable()) { + return; // This should never happen but we never want to create more than one thread. + } + thread = std::thread([this]{ + while(true) { + std::unique_lock thread_lock(locking_mutex); + // We wait for either "run" or "stop_thread" to be called. + cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); + // If, for some reason, the stop_thread() method was called (i.e., the + // destructor of stage1_worker is called, then we want to immediately destroy + // the thread (and not do any more processing). + if(!can_work) { + break; + } + this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, + this->_next_batch_start); + this->has_work = false; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify "finish" + thread_lock.unlock(); + } + } + ); +} + + +inline void stage1_worker::stop_thread() { + std::unique_lock lock(locking_mutex); + // We have to make sure that all locks can be released. + can_work = false; + has_work = false; + cond_var.notify_all(); + lock.unlock(); + if(thread.joinable()) { + thread.join(); + } +} + +inline void stage1_worker::run(document_stream * ds, parser * stage1, size_t next_batch_start) { + std::unique_lock lock(locking_mutex); + owner = ds; + _next_batch_start = next_batch_start; + stage1_thread_parser = stage1; + has_work = true; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify the thread lock that we have work + lock.unlock(); +} + +#endif // SIMDJSON_THREADS_ENABLED + +simdjson_inline document_stream::document_stream( + ondemand::parser &_parser, + const uint8_t *_buf, + size_t _len, + size_t _batch_size, + bool _allow_comma_separated +) noexcept + : parser{&_parser}, + buf{_buf}, + len{_len}, + batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, + allow_comma_separated{_allow_comma_separated}, + error{SUCCESS} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change + #endif +{ +#ifdef SIMDJSON_THREADS_ENABLED + if(worker.get() == nullptr) { + error = MEMALLOC; + } +#endif +} + +simdjson_inline document_stream::document_stream() noexcept + : parser{nullptr}, + buf{nullptr}, + len{0}, + batch_size{0}, + allow_comma_separated{false}, + error{UNINITIALIZED} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(false) + #endif +{ +} + +simdjson_inline document_stream::~document_stream() noexcept +{ + #ifdef SIMDJSON_THREADS_ENABLED + worker.reset(); + #endif +} + +inline size_t document_stream::size_in_bytes() const noexcept { + return len; +} + +inline size_t document_stream::truncated_bytes() const noexcept { + if(error == CAPACITY) { return len - batch_start; } + return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; +} + +simdjson_inline document_stream::iterator::iterator() noexcept + : stream{nullptr}, finished{true} { +} + +simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept + : stream{_stream}, finished{is_end} { +} + +simdjson_inline simdjson_result document_stream::iterator::operator*() noexcept { + //if(stream->error) { return stream->error; } + return simdjson_result(stream->doc, stream->error); +} + +simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { + // If there is an error, then we want the iterator + // to be finished, no matter what. (E.g., we do not + // keep generating documents with errors, or go beyond + // a document with errors.) + // + // Users do not have to call "operator*()" when they use operator++, + // so we need to end the stream in the operator++ function. + // + // Note that setting finished = true is essential otherwise + // we would enter an infinite loop. + if (stream->error) { finished = true; } + // Note that stream->error() is guarded against error conditions + // (it will immediately return if stream->error casts to false). + // In effect, this next function does nothing when (stream->error) + // is true (hence the risk of an infinite loop). + stream->next(); + // If that was the last document, we're finished. + // It is the only type of error we do not want to appear + // in operator*. + if (stream->error == EMPTY) { finished = true; } + // If we had any other kind of error (not EMPTY) then we want + // to pass it along to the operator* and we cannot mark the result + // as "finished" just yet. + return *this; +} + +simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { + return finished != other.finished; +} + +simdjson_inline document_stream::iterator document_stream::begin() noexcept { + start(); + // If there are no documents, we're finished. + return iterator(this, error == EMPTY); +} + +simdjson_inline document_stream::iterator document_stream::end() noexcept { + return iterator(this, true); +} + +inline void document_stream::start() noexcept { + if (error) { return; } + error = parser->allocate(batch_size); + if (error) { return; } + // Always run the first stage 1 parse immediately + batch_start = 0; + error = run_stage1(*parser, batch_start); + while(error == EMPTY) { + // In exceptional cases, we may start with an empty block + batch_start = next_batch_start(); + if (batch_start >= len) { return; } + error = run_stage1(*parser, batch_start); } - // Repeat 16 values as many times as necessary (usually for lookup tables) - static simdjson_inline simd8 repeat_16(T v0, T v1, T v2, T v3, T v4, - T v5, T v6, T v7, T v8, T v9, - T v10, T v11, T v12, T v13, - T v14, T v15) { - return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, - v14, v15); + if (error) { return; } + doc_index = batch_start; + doc = document(json_iterator(&buf[batch_start], parser)); + doc.iter._streaming = true; + + #ifdef SIMDJSON_THREADS_ENABLED + if (use_thread && next_batch_start() < len) { + // Kick off the first thread on next batch if needed + error = stage1_thread_parser.allocate(batch_size); + if (error) { return; } + worker->start_thread(); + start_stage1_thread(); + if (error) { return; } + } + #endif // SIMDJSON_THREADS_ENABLED +} + +inline void document_stream::next() noexcept { + // We always enter at once once in an error condition. + if (error) { return; } + next_document(); + if (error) { return; } + auto cur_struct_index = doc.iter._root - parser->implementation->structural_indexes.get(); + doc_index = batch_start + parser->implementation->structural_indexes[cur_struct_index]; + + // Check if at end of structural indexes (i.e. at end of batch) + if(cur_struct_index >= static_cast(parser->implementation->n_structural_indexes)) { + error = EMPTY; + // Load another batch (if available) + while (error == EMPTY) { + batch_start = next_batch_start(); + if (batch_start >= len) { break; } + #ifdef SIMDJSON_THREADS_ENABLED + if(use_thread) { + load_from_stage1_thread(); + } else { + error = run_stage1(*parser, batch_start); + } + #else + error = run_stage1(*parser, batch_start); + #endif + /** + * Whenever we move to another window, we need to update all pointers to make + * it appear as if the input buffer started at the beginning of the window. + * + * Take this input: + * + * {"z":5} {"1":1,"2":2,"4":4} [7, 10, 9] [15, 11, 12, 13] [154, 110, 112, 1311] + * + * Say you process the following window... + * + * '{"z":5} {"1":1,"2":2,"4":4} [7, 10, 9]' + * + * When you do so, the json_iterator has a pointer at the beginning of the memory region + * (pointing at the beginning of '{"z"...'. + * + * When you move to the window that starts at... + * + * '[7, 10, 9] [15, 11, 12, 13] ... + * + * then it is not sufficient to just run stage 1. You also need to re-anchor the + * json_iterator so that it believes we are starting at '[7, 10, 9]...'. + * + * Under the DOM front-end, this gets done automatically because the parser owns + * the pointer the data, and when you call stage1 and then stage2 on the same + * parser, then stage2 will run on the pointer acquired by stage1. + * + * That is, stage1 calls "this->buf = _buf" so the parser remembers the buffer that + * we used. But json_iterator has no callback when stage1 is called on the parser. + * In fact, I think that the parser is unaware of json_iterator. + * + * + * So we need to re-anchor the json_iterator after each call to stage 1 so that + * all of the pointers are in sync. + */ + doc.iter = json_iterator(&buf[batch_start], parser); + doc.iter._streaming = true; + /** + * End of resync. + */ + + if (error) { continue; } // If the error was EMPTY, we may want to load another batch. + doc_index = batch_start; + } + } +} + +inline void document_stream::next_document() noexcept { + // Go to next place where depth=0 (document depth) + error = doc.iter.skip_child(0); + if (error) { return; } + // Always set depth=1 at the start of document + doc.iter._depth = 1; + // consume comma if comma separated is allowed + if (allow_comma_separated) { doc.iter.consume_character(','); } + // Resets the string buffer at the beginning, thus invalidating the strings. + doc.iter._string_buf_loc = parser->string_buf.get(); + doc.iter._root = doc.iter.position(); +} + +inline size_t document_stream::next_batch_start() const noexcept { + return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; +} + +inline error_code document_stream::run_stage1(ondemand::parser &p, size_t _batch_start) noexcept { + // This code only updates the structural index in the parser, it does not update any json_iterator + // instance. + size_t remaining = len - _batch_start; + if (remaining <= batch_size) { + return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); + } else { + return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); + } +} + +simdjson_inline size_t document_stream::iterator::current_index() const noexcept { + return stream->doc_index; +} + +simdjson_inline std::string_view document_stream::iterator::source() const noexcept { + auto depth = stream->doc.iter.depth(); + auto cur_struct_index = stream->doc.iter._root - stream->parser->implementation->structural_indexes.get(); + + // If at root, process the first token to determine if scalar value + if (stream->doc.iter.at_root()) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': // Depth=1 already at start of document + break; + case '}': case ']': + depth--; + break; + default: // Scalar value document + // TODO: Remove any trailing whitespaces + // This returns a string spanning from start of value to the beginning of the next document (excluded) + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[++cur_struct_index] - current_index() - 1); + } + cur_struct_index++; + } + + while (cur_struct_index <= static_cast(stream->parser->implementation->n_structural_indexes)) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': + depth++; + break; + case '}': case ']': + depth--; + break; + } + if (depth == 0) { break; } + cur_struct_index++; + } + + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);; +} + +inline error_code document_stream::iterator::error() const noexcept { + return stream->error; +} + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void document_stream::load_from_stage1_thread() noexcept { + worker->finish(); + // Swap to the parser that was loaded up in the thread. Make sure the parser has + // enough memory to swap to, as well. + std::swap(stage1_thread_parser,*parser); + error = stage1_thread_error; + if (error) { return; } + + // If there's anything left, start the stage 1 thread! + if (next_batch_start() < len) { + start_stage1_thread(); + } +} + +inline void document_stream::start_stage1_thread() noexcept { + // we call the thread on a lambda that will update + // this->stage1_thread_error + // there is only one thread that may write to this value + // TODO this is NOT exception-safe. + this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error + size_t _next_batch_start = this->next_batch_start(); + + worker->run(this, & this->stage1_thread_parser, _next_batch_start); +} + +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result::simdjson_result( + ppc64::ondemand::document_stream &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} + +} + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H +/* end file simdjson/generic/ondemand/document_stream-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/field-inl.h for ppc64: #include "simdjson/generic/ondemand/field-inl.h" */ +/* begin file simdjson/generic/ondemand/field-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +// clang 6 doesn't think the default constructor can be noexcept, so we make it explicit +simdjson_inline field::field() noexcept : std::pair() {} + +simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept + : std::pair(key, std::forward(value)) +{ +} + +simdjson_inline simdjson_result field::start(value_iterator &parent_iter) noexcept { + raw_json_string key; + SIMDJSON_TRY( parent_iter.field_key().get(key) ); + SIMDJSON_TRY( parent_iter.field_value() ); + return field::start(parent_iter, key); +} + +simdjson_inline simdjson_result field::start(const value_iterator &parent_iter, raw_json_string key) noexcept { + return field(key, parent_iter.child()); +} + +simdjson_inline simdjson_warn_unused simdjson_result field::unescaped_key(bool allow_replacement) noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us. + simdjson_result answer = first.unescape(second.iter.json_iter(), allow_replacement); + first.consume(); + return answer; +} + +simdjson_inline raw_json_string field::key() const noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us. + return first; +} + +simdjson_inline value &field::value() & noexcept { + return second; +} + +simdjson_inline value field::value() && noexcept { + return std::forward(*this).second; +} + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + ppc64::ondemand::field &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} + +simdjson_inline simdjson_result simdjson_result::key() noexcept { + if (error()) { return error(); } + return first.key(); +} +simdjson_inline simdjson_result simdjson_result::unescaped_key(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.unescaped_key(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::value() noexcept { + if (error()) { return error(); } + return std::move(first.value()); +} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H +/* end file simdjson/generic/ondemand/field-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/json_iterator-inl.h for ppc64: #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/json_iterator-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +simdjson_inline json_iterator::json_iterator(json_iterator &&other) noexcept + : token(std::forward(other.token)), + parser{other.parser}, + _string_buf_loc{other._string_buf_loc}, + error{other.error}, + _depth{other._depth}, + _root{other._root}, + _streaming{other._streaming} +{ + other.parser = nullptr; +} +simdjson_inline json_iterator &json_iterator::operator=(json_iterator &&other) noexcept { + token = other.token; + parser = other.parser; + _string_buf_loc = other._string_buf_loc; + error = other.error; + _depth = other._depth; + _root = other._root; + _streaming = other._streaming; + other.parser = nullptr; + return *this; +} + +simdjson_inline json_iterator::json_iterator(const uint8_t *buf, ondemand::parser *_parser) noexcept + : token(buf, &_parser->implementation->structural_indexes[0]), + parser{_parser}, + _string_buf_loc{parser->string_buf.get()}, + _depth{1}, + _root{parser->implementation->structural_indexes.get()}, + _streaming{false} + +{ + logger::log_headers(); +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif +} + +inline void json_iterator::rewind() noexcept { + token.set_position( root_position() ); + logger::log_headers(); // We start again + _string_buf_loc = parser->string_buf.get(); + _depth = 1; +} + +inline bool json_iterator::balanced() const noexcept { + token_iterator ti(token); + int32_t count{0}; + ti.set_position( root_position() ); + while(ti.peek() <= peek_last()) { + switch (*ti.return_current_and_advance()) + { + case '[': case '{': + count++; + break; + case ']': case '}': + count--; + break; + default: + break; + } + } + return count == 0; +} + + +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and parent_depth, which is a desired effect. The warning does not show up if the +// skip_child() function is not marked inline). +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept { + if (depth() <= parent_depth) { return SUCCESS; } + switch (*return_current_and_advance()) { + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + + // For the first open array/object in a value, we've already incremented depth, so keep it the same + // We never stop at colon, but if we did, it wouldn't affect depth + case '[': case '{': case ':': + logger::log_start_value(*this, "skip"); + break; + // If there is a comma, we have just finished a value in an array/object, and need to get back in + case ',': + logger::log_value(*this, "skip"); + break; + // ] or } means we just finished a value and need to jump out of the array/object + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } +#if SIMDJSON_CHECK_EOF + // If there are no more tokens, the parent is incomplete. + if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + break; + case '"': + if(*peek() == ':') { + // We are at a key!!! + // This might happen if you just started an object and you skip it immediately. + // Performance note: it would be nice to get rid of this check as it is somewhat + // expensive. + // https://github.com/simdjson/simdjson/issues/1742 + logger::log_value(*this, "key"); + return_current_and_advance(); // eat up the ':' + break; // important!!! + } + simdjson_fallthrough; + // Anything else must be a scalar value + default: + // For the first scalar, we will have incremented depth already, so we decrement it here. + logger::log_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + } + + // Now that we've considered the first value, we only increment/decrement for arrays/objects + while (position() < end_position()) { + switch (*return_current_and_advance()) { + case '[': case '{': + logger::log_start_value(*this, "skip"); + _depth++; + break; + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + default: + logger::log_value(*this, "skip", ""); + break; + } } - simdjson_inline base8_numeric() : base8() {} - simdjson_inline base8_numeric(const __m128i _value) - : base8(_value) {} + return report_error(TAPE_ERROR, "not enough close braces"); +} - // Store to array - simdjson_inline void store(T dst[16]) const { - vec_vsx_st(this->value, 0, reinterpret_cast<__m128i *>(dst)); - } +SIMDJSON_POP_DISABLE_WARNINGS - // Override to distinguish from bool version - simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } +simdjson_inline bool json_iterator::at_root() const noexcept { + return position() == root_position(); +} - // Addition/subtraction are the same for signed and unsigned - simdjson_inline simd8 operator+(const simd8 other) const { - return (__m128i)((__m128i)this->value + (__m128i)other); - } - simdjson_inline simd8 operator-(const simd8 other) const { - return (__m128i)((__m128i)this->value - (__m128i)other); - } - simdjson_inline simd8 &operator+=(const simd8 other) { - *this = *this + other; - return *static_cast *>(this); +simdjson_inline bool json_iterator::is_single_token() const noexcept { + return parser->implementation->n_structural_indexes == 1; +} + +simdjson_inline bool json_iterator::streaming() const noexcept { + return _streaming; +} + +simdjson_inline token_position json_iterator::root_position() const noexcept { + return _root; +} + +simdjson_inline void json_iterator::assert_at_document_depth() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +} + +simdjson_inline void json_iterator::assert_at_root() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + // Under Visual Studio, the next SIMDJSON_ASSUME fails with: the argument + // has side effects that will be discarded. + SIMDJSON_ASSUME( token.position() == _root ); +#endif +} + +simdjson_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept { + assert_valid_position(token._position + required_tokens - 1); +} + +simdjson_inline void json_iterator::assert_valid_position(token_position position) const noexcept { +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME( position >= &parser->implementation->structural_indexes[0] ); + SIMDJSON_ASSUME( position < &parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] ); +#endif +} + +simdjson_inline bool json_iterator::at_end() const noexcept { + return position() == end_position(); +} +simdjson_inline token_position json_iterator::end_position() const noexcept { + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + return &parser->implementation->structural_indexes[n_structural_indexes]; +} + +inline std::string json_iterator::to_string() const noexcept { + if( !is_alive() ) { return "dead json_iterator instance"; } + const char * current_structural = reinterpret_cast(token.peek()); + return std::string("json_iterator [ depth : ") + std::to_string(_depth) + + std::string(", structural : '") + std::string(current_structural,1) + + std::string("', offset : ") + std::to_string(token.current_offset()) + + std::string("', error : ") + error_message(error) + + std::string(" ]"); +} + +inline simdjson_result json_iterator::current_location() const noexcept { + if (!is_alive()) { // Unrecoverable error + if (!at_root()) { + return reinterpret_cast(token.peek(-1)); + } else { + return reinterpret_cast(token.peek()); + } } - simdjson_inline simd8 &operator-=(const simd8 other) { - *this = *this - other; - return *static_cast *>(this); + if (at_end()) { + return OUT_OF_BOUNDS; } + return reinterpret_cast(token.peek()); +} - // Perform a lookup assuming the value is between 0 and 16 (undefined behavior - // for out of range values) - template - simdjson_inline simd8 lookup_16(simd8 lookup_table) const { - return (__m128i)vec_perm((__m128i)lookup_table, (__m128i)lookup_table, this->value); - } +simdjson_inline bool json_iterator::is_alive() const noexcept { + return parser; +} - // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted - // as a bitset). Passing a 0 value for mask would be equivalent to writing out - // every byte to output. Only the first 16 - count_ones(mask) bytes of the - // result are significant but 16 bytes get written. Design consideration: it - // seems like a function with the signature simd8 compress(uint32_t mask) - // would be sensible, but the AVX ISA makes this kind of approach difficult. - template - simdjson_inline void compress(uint16_t mask, L *output) const { - using internal::BitsSetTable256mul2; - using internal::pshufb_combine_table; - using internal::thintable_epi8; - // this particular implementation was inspired by work done by @animetosho - // we do it in two steps, first 8 bytes and then second 8 bytes - uint8_t mask1 = uint8_t(mask); // least significant 8 bits - uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits - // next line just loads the 64-bit values thintable_epi8[mask1] and - // thintable_epi8[mask2] into a 128-bit register, using only - // two instructions on most compilers. -#ifdef __LITTLE_ENDIAN__ - __m128i shufmask = (__m128i)(__vector unsigned long long){ - thintable_epi8[mask1], thintable_epi8[mask2]}; -#else - __m128i shufmask = (__m128i)(__vector unsigned long long){ - thintable_epi8[mask2], thintable_epi8[mask1]}; - shufmask = (__m128i)vec_reve((__m128i)shufmask); +simdjson_inline void json_iterator::abandon() noexcept { + parser = nullptr; + _depth = 0; +} + +simdjson_inline const uint8_t *json_iterator::return_current_and_advance() noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif // SIMDJSON_CHECK_EOF + return token.return_current_and_advance(); +} + +simdjson_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept { + // deliberately done without safety guard: + return token.peek(); +} + +simdjson_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // SIMDJSON_CHECK_EOF + return token.peek(delta); +} + +simdjson_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // #if SIMDJSON_CHECK_EOF + return token.peek_length(delta); +} + +simdjson_inline const uint8_t *json_iterator::peek(token_position position) const noexcept { + // todo: currently we require end-of-string buffering, but the following + // assert_valid_position should be turned on if/when we lift that condition. + // assert_valid_position(position); + // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF + // is ON by default, we have no choice but to disable it for real with a comment. + return token.peek(position); +} + +simdjson_inline uint32_t json_iterator::peek_length(token_position position) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_valid_position(position); +#endif // SIMDJSON_CHECK_EOF + return token.peek_length(position); +} + +simdjson_inline token_position json_iterator::last_position() const noexcept { + // The following line fails under some compilers... + // SIMDJSON_ASSUME(parser->implementation->n_structural_indexes > 0); + // since it has side-effects. + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + SIMDJSON_ASSUME(n_structural_indexes > 0); + return &parser->implementation->structural_indexes[n_structural_indexes - 1]; +} +simdjson_inline const uint8_t *json_iterator::peek_last() const noexcept { + return token.peek(last_position()); +} + +simdjson_inline void json_iterator::ascend_to(depth_t parent_depth) noexcept { + SIMDJSON_ASSUME(parent_depth >= 0 && parent_depth < INT32_MAX - 1); + SIMDJSON_ASSUME(_depth == parent_depth + 1); + _depth = parent_depth; +} + +simdjson_inline void json_iterator::descend_to(depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); + _depth = child_depth; +} + +simdjson_inline depth_t json_iterator::depth() const noexcept { + return _depth; +} + +simdjson_inline uint8_t *&json_iterator::string_buf_loc() noexcept { + return _string_buf_loc; +} + +simdjson_inline error_code json_iterator::report_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error != SUCCESS && _error != UNINITIALIZED && _error != INCORRECT_TYPE && _error != NO_SUCH_FIELD); + logger::log_error(*this, message); + error = _error; + return error; +} + +simdjson_inline token_position json_iterator::position() const noexcept { + return token.position(); +} + +simdjson_inline simdjson_result json_iterator::unescape(raw_json_string in, bool allow_replacement) noexcept { + return parser->unescape(in, _string_buf_loc, allow_replacement); +} + +simdjson_inline simdjson_result json_iterator::unescape_wobbly(raw_json_string in) noexcept { + return parser->unescape_wobbly(in, _string_buf_loc); +} + +simdjson_inline void json_iterator::reenter_child(token_position position, depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); +#if SIMDJSON_DEVELOPMENT_CHECKS +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME(size_t(child_depth) < parser->max_depth()); + SIMDJSON_ASSUME(position >= parser->start_positions[child_depth]); #endif - // we increment by 0x08 the second half of the mask - shufmask = ((__m128i)shufmask) + - ((__m128i)(__vector int){0, 0, 0x08080808, 0x08080808}); +#endif + token.set_position(position); + _depth = child_depth; +} - // this is the version "nearly pruned" - __m128i pruned = vec_perm(this->value, this->value, shufmask); - // we still need to put the two halves together. - // we compute the popcount of the first half: - int pop1 = BitsSetTable256mul2[mask1]; - // then load the corresponding mask, what it does is to write - // only the first pop1 bytes from the first 8 bytes, and then - // it fills in with the bytes from the second 8 bytes + some filling - // at the end. - __m128i compactmask = - vec_vsx_ld(0, reinterpret_cast(pshufb_combine_table + pop1 * 8)); - __m128i answer = vec_perm(pruned, (__m128i)vec_splats(0), compactmask); - vec_vsx_st(answer, 0, reinterpret_cast<__m128i *>(output)); +simdjson_inline error_code json_iterator::consume_character(char c) noexcept { + if (*peek() == c) { + return_current_and_advance(); + return SUCCESS; } + return TAPE_ERROR; +} - template - simdjson_inline simd8 - lookup_16(L replace0, L replace1, L replace2, L replace3, L replace4, - L replace5, L replace6, L replace7, L replace8, L replace9, - L replace10, L replace11, L replace12, L replace13, L replace14, - L replace15) const { - return lookup_16(simd8::repeat_16( - replace0, replace1, replace2, replace3, replace4, replace5, replace6, - replace7, replace8, replace9, replace10, replace11, replace12, - replace13, replace14, replace15)); - } -}; +#if SIMDJSON_DEVELOPMENT_CHECKS -// Signed bytes -template <> struct simd8 : base8_numeric { - simdjson_inline simd8() : base8_numeric() {} - simdjson_inline simd8(const __m128i _value) - : base8_numeric(_value) {} - // Splat constructor - simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} - // Array constructor - simdjson_inline simd8(const int8_t *values) : simd8(load(values)) {} - // Member-by-member initialization - simdjson_inline simd8(int8_t v0, int8_t v1, int8_t v2, int8_t v3, - int8_t v4, int8_t v5, int8_t v6, int8_t v7, - int8_t v8, int8_t v9, int8_t v10, int8_t v11, - int8_t v12, int8_t v13, int8_t v14, int8_t v15) - : simd8((__m128i)(__vector signed char){v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10, v11, v12, v13, v14, - v15}) {} - // Repeat 16 values as many times as necessary (usually for lookup tables) - simdjson_inline static simd8 - repeat_16(int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, - int8_t v6, int8_t v7, int8_t v8, int8_t v9, int8_t v10, int8_t v11, - int8_t v12, int8_t v13, int8_t v14, int8_t v15) { - return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, - v13, v14, v15); - } +simdjson_inline token_position json_iterator::start_position(depth_t depth) const noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + return size_t(depth) < parser->max_depth() ? parser->start_positions[depth] : 0; +} - // Order-sensitive comparisons - simdjson_inline simd8 - max_val(const simd8 other) const { - return (__m128i)vec_max((__vector signed char)this->value, - (__vector signed char)(__m128i)other); - } - simdjson_inline simd8 - min_val(const simd8 other) const { - return (__m128i)vec_min((__vector signed char)this->value, - (__vector signed char)(__m128i)other); +simdjson_inline void json_iterator::set_start_position(depth_t depth, token_position position) noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + if(size_t(depth) < parser->max_depth()) { parser->start_positions[depth] = position; } +} + +#endif + + +simdjson_inline error_code json_iterator::optional_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error == INCORRECT_TYPE || _error == NO_SUCH_FIELD); + logger::log_error(*this, message); + return _error; +} + + +simdjson_warn_unused simdjson_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept { + // This function is not expected to be called in performance-sensitive settings. + // Let us guard against silly cases: + if((N < max_len) || (N == 0)) { return false; } + // Copy to the buffer. + std::memcpy(tmpbuf, json, max_len); + if(N > max_len) { // We pad whatever remains with ' '. + std::memset(tmpbuf + max_len, ' ', N - max_len); } - simdjson_inline simd8 - operator>(const simd8 other) const { - return (__m128i)vec_cmpgt((__vector signed char)this->value, - (__vector signed char)(__m128i)other); + return true; +} + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(ppc64::ondemand::json_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/json_iterator-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/json_type-inl.h for ppc64: #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* begin file simdjson/generic/ondemand/json_type-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept { + switch (type) { + case json_type::array: out << "array"; break; + case json_type::object: out << "object"; break; + case json_type::number: out << "number"; break; + case json_type::string: out << "string"; break; + case json_type::boolean: out << "boolean"; break; + case json_type::null: out << "null"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; +} + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false) { + return out << type.value(); +} +#endif + + + +simdjson_inline number_type number::get_number_type() const noexcept { + return type; +} + +simdjson_inline bool number::is_uint64() const noexcept { + return get_number_type() == number_type::unsigned_integer; +} + +simdjson_inline uint64_t number::get_uint64() const noexcept { + return payload.unsigned_integer; +} + +simdjson_inline number::operator uint64_t() const noexcept { + return get_uint64(); +} + + +simdjson_inline bool number::is_int64() const noexcept { + return get_number_type() == number_type::signed_integer; +} + +simdjson_inline int64_t number::get_int64() const noexcept { + return payload.signed_integer; +} + +simdjson_inline number::operator int64_t() const noexcept { + return get_int64(); +} + +simdjson_inline bool number::is_double() const noexcept { + return get_number_type() == number_type::floating_point_number; +} + +simdjson_inline double number::get_double() const noexcept { + return payload.floating_point_number; +} + +simdjson_inline number::operator double() const noexcept { + return get_double(); +} + +simdjson_inline double number::as_double() const noexcept { + if(is_double()) { + return payload.floating_point_number; } - simdjson_inline simd8 - operator<(const simd8 other) const { - return (__m128i)vec_cmplt((__vector signed char)this->value, - (__vector signed char)(__m128i)other); + if(is_int64()) { + return double(payload.signed_integer); } -}; + return double(payload.unsigned_integer); +} -// Unsigned bytes -template <> struct simd8 : base8_numeric { - simdjson_inline simd8() : base8_numeric() {} - simdjson_inline simd8(const __m128i _value) - : base8_numeric(_value) {} - // Splat constructor - simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} - // Array constructor - simdjson_inline simd8(const uint8_t *values) : simd8(load(values)) {} - // Member-by-member initialization - simdjson_inline - simd8(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, - uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, uint8_t v10, - uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15) - : simd8((__m128i){v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, - v13, v14, v15}) {} - // Repeat 16 values as many times as necessary (usually for lookup tables) - simdjson_inline static simd8 - repeat_16(uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, - uint8_t v5, uint8_t v6, uint8_t v7, uint8_t v8, uint8_t v9, - uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, - uint8_t v15) { - return simd8(v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, - v13, v14, v15); - } +simdjson_inline void number::append_s64(int64_t value) noexcept { + payload.signed_integer = value; + type = number_type::signed_integer; +} + +simdjson_inline void number::append_u64(uint64_t value) noexcept { + payload.unsigned_integer = value; + type = number_type::unsigned_integer; +} + +simdjson_inline void number::append_double(double value) noexcept { + payload.floating_point_number = value; + type = number_type::floating_point_number; +} + +simdjson_inline void number::skip_double() noexcept { + type = number_type::floating_point_number; +} + +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(ppc64::ondemand::json_type &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H +/* end file simdjson/generic/ondemand/json_type-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/logger-inl.h for ppc64: #include "simdjson/generic/ondemand/logger-inl.h" */ +/* begin file simdjson/generic/ondemand/logger-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace ppc64 { +namespace ondemand { +namespace logger { - // Saturated math - simdjson_inline simd8 - saturating_add(const simd8 other) const { - return (__m128i)vec_adds(this->value, (__m128i)other); - } - simdjson_inline simd8 - saturating_sub(const simd8 other) const { - return (__m128i)vec_subs(this->value, (__m128i)other); - } +static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +static constexpr const int LOG_EVENT_LEN = 20; +static constexpr const int LOG_BUFFER_LEN = 30; +static constexpr const int LOG_SMALL_BUFFER_LEN = 10; +static int log_depth = 0; // Not threadsafe. Log only. - // Order-specific operations - simdjson_inline simd8 - max_val(const simd8 other) const { - return (__m128i)vec_max(this->value, (__m128i)other); - } - simdjson_inline simd8 - min_val(const simd8 other) const { - return (__m128i)vec_min(this->value, (__m128i)other); - } - // Same as >, but only guarantees true is nonzero (< guarantees true = -1) - simdjson_inline simd8 - gt_bits(const simd8 other) const { - return this->saturating_sub(other); - } - // Same as <, but only guarantees true is nonzero (< guarantees true = -1) - simdjson_inline simd8 - lt_bits(const simd8 other) const { - return other.saturating_sub(*this); - } - simdjson_inline simd8 - operator<=(const simd8 other) const { - return other.max_val(*this) == other; - } - simdjson_inline simd8 - operator>=(const simd8 other) const { - return other.min_val(*this) == other; - } - simdjson_inline simd8 - operator>(const simd8 other) const { - return this->gt_bits(other).any_bits_set(); - } - simdjson_inline simd8 - operator<(const simd8 other) const { - return this->gt_bits(other).any_bits_set(); +// Helper to turn unprintable or newline characters into spaces +static inline char printable_char(char c) { + if (c >= 0x20) { + return c; + } else { + return ' '; } +} - // Bit-specific operations - simdjson_inline simd8 bits_not_set() const { - return (__m128i)vec_cmpeq(this->value, (__m128i)vec_splats(uint8_t(0))); - } - simdjson_inline simd8 bits_not_set(simd8 bits) const { - return (*this & bits).bits_not_set(); - } - simdjson_inline simd8 any_bits_set() const { - return ~this->bits_not_set(); - } - simdjson_inline simd8 any_bits_set(simd8 bits) const { - return ~this->bits_not_set(bits); - } - simdjson_inline bool bits_not_set_anywhere() const { - return vec_all_eq(this->value, (__m128i)vec_splats(0)); - } - simdjson_inline bool any_bits_set_anywhere() const { - return !bits_not_set_anywhere(); - } - simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { - return vec_all_eq(vec_and(this->value, (__m128i)bits), - (__m128i)vec_splats(0)); - } - simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { - return !bits_not_set_anywhere(bits); - } - template simdjson_inline simd8 shr() const { - return simd8( - (__m128i)vec_sr(this->value, (__m128i)vec_splat_u8(N))); - } - template simdjson_inline simd8 shl() const { - return simd8( - (__m128i)vec_sl(this->value, (__m128i)vec_splat_u8(N))); - } -}; +template +static inline std::string string_format(const std::string& format, const Args&... args) +{ + SIMDJSON_PUSH_DISABLE_ALL_WARNINGS + int size_s = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; + auto size = static_cast(size_s); + if (size <= 0) return std::string(); + std::unique_ptr buf(new char[size]); + std::snprintf(buf.get(), size, format.c_str(), args...); + SIMDJSON_POP_DISABLE_WARNINGS + return std::string(buf.get(), buf.get() + size - 1); +} -template struct simd8x64 { - static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); - static_assert(NUM_CHUNKS == 4, - "PPC64 kernel should use four registers per 64-byte block."); - const simd8 chunks[NUM_CHUNKS]; +static inline log_level get_log_level_from_env() +{ + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + char *lvl = getenv("SIMDJSON_LOG_LEVEL"); + SIMDJSON_POP_DISABLE_WARNINGS + if (lvl && simdjson_strcasecmp(lvl, "ERROR") == 0) { return log_level::error; } + return log_level::info; +} - simd8x64(const simd8x64 &o) = delete; // no copy allowed - simd8x64 & - operator=(const simd8& other) = delete; // no assignment allowed - simd8x64() = delete; // no default constructor allowed +static inline log_level log_threshold() +{ + static log_level threshold = get_log_level_from_env(); + return threshold; +} - simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, - const simd8 chunk2, const simd8 chunk3) - : chunks{chunk0, chunk1, chunk2, chunk3} {} - simdjson_inline simd8x64(const T ptr[64]) - : chunks{simd8::load(ptr), simd8::load(ptr + 16), - simd8::load(ptr + 32), simd8::load(ptr + 48)} {} +static inline bool should_log(log_level level) +{ + return level >= log_threshold(); +} - simdjson_inline void store(T ptr[64]) const { - this->chunks[0].store(ptr + sizeof(simd8) * 0); - this->chunks[1].store(ptr + sizeof(simd8) * 1); - this->chunks[2].store(ptr + sizeof(simd8) * 2); - this->chunks[3].store(ptr + sizeof(simd8) * 3); - } +inline void log_event(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} - simdjson_inline simd8 reduce_or() const { - return (this->chunks[0] | this->chunks[1]) | - (this->chunks[2] | this->chunks[3]); - } +inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "", type, detail, log_level::info); +} +inline void log_value(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); +} - simdjson_inline uint64_t compress(uint64_t mask, T *output) const { - this->chunks[0].compress(uint16_t(mask), output); - this->chunks[1].compress(uint16_t(mask >> 16), - output + 16 - count_ones(mask & 0xFFFF)); - this->chunks[2].compress(uint16_t(mask >> 32), - output + 32 - count_ones(mask & 0xFFFFFFFF)); - this->chunks[3].compress(uint16_t(mask >> 48), - output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); - return 64 - count_ones(mask); - } +inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "+", type, detail, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} +inline void log_start_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_line(iter, "+", type, "", delta, depth_delta, log_level::info); + if (LOG_ENABLED) { log_depth++; } +} - simdjson_inline uint64_t to_bitmask() const { - uint64_t r0 = uint32_t(this->chunks[0].to_bitmask()); - uint64_t r1 = this->chunks[1].to_bitmask(); - uint64_t r2 = this->chunks[2].to_bitmask(); - uint64_t r3 = this->chunks[3].to_bitmask(); - return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); - } +inline void log_end_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + if (LOG_ENABLED) { log_depth--; } + log_line(iter, "-", type, "", delta, depth_delta, log_level::info); +} - simdjson_inline uint64_t eq(const T m) const { - const simd8 mask = simd8::splat(m); - return simd8x64(this->chunks[0] == mask, this->chunks[1] == mask, - this->chunks[2] == mask, this->chunks[3] == mask) - .to_bitmask(); - } +inline void log_error(const json_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_line(iter, "ERROR: ", error, detail, delta, depth_delta, log_level::error); +} +inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail) noexcept { + log_line(iter, index, depth, "ERROR: ", error, detail, log_level::error); +} - simdjson_inline uint64_t eq(const simd8x64 &other) const { - return simd8x64(this->chunks[0] == other.chunks[0], - this->chunks[1] == other.chunks[1], - this->chunks[2] == other.chunks[2], - this->chunks[3] == other.chunks[3]) - .to_bitmask(); +inline void log_event(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_event(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_value(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_value(iter.json_iter(), type, detail, delta, depth_delta); +} + +inline void log_start_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_start_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_end_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_end_value(iter.json_iter(), type, delta, depth_delta); +} + +inline void log_error(const value_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_error(iter.json_iter(), error, detail, delta, depth_delta); +} + +inline void log_headers() noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(log_level::info))) { + // Technically a static variable is not thread-safe, but if you are using threads and logging... well... + static bool displayed_hint{false}; + log_depth = 0; + printf("\n"); + if (!displayed_hint) { + // We only print this helpful header once. + printf("# Logging provides the depth and position of the iterator user-visible steps:\n"); + printf("# +array says 'this is where we were when we discovered the start array'\n"); + printf( + "# -array says 'this is where we were when we ended the array'\n"); + printf("# skip says 'this is a structural or value I am skipping'\n"); + printf("# +/-skip says 'this is a start/end array or object I am skipping'\n"); + printf("#\n"); + printf("# The indentation of the terms (array, string,...) indicates the depth,\n"); + printf("# in addition to the depth being displayed.\n"); + printf("#\n"); + printf("# Every token in the document has a single depth determined by the tokens before it,\n"); + printf("# and is not affected by what the token actually is.\n"); + printf("#\n"); + printf("# Not all structural elements are presented as tokens in the logs.\n"); + printf("#\n"); + printf("# We never give control to the user within an empty array or an empty object.\n"); + printf("#\n"); + printf("# Inside an array, having a depth greater than the array's depth means that\n"); + printf("# we are pointing inside a value.\n"); + printf("# Having a depth equal to the array means that we are pointing right before a value.\n"); + printf("# Having a depth smaller than the array means that we have moved beyond the array.\n"); + displayed_hint = true; + } + printf("\n"); + printf("| %-*s ", LOG_EVENT_LEN, "Event"); + printf("| %-*s ", LOG_BUFFER_LEN, "Buffer"); + printf("| %-*s ", LOG_SMALL_BUFFER_LEN, "Next"); + // printf("| %-*s ", 5, "Next#"); + printf("| %-*s ", 5, "Depth"); + printf("| Detail "); + printf("|\n"); + + printf("|%.*s", LOG_EVENT_LEN + 2, DASHES); + printf("|%.*s", LOG_BUFFER_LEN + 2, DASHES); + printf("|%.*s", LOG_SMALL_BUFFER_LEN + 2, DASHES); + // printf("|%.*s", 5+2, DASHES); + printf("|%.*s", 5 + 2, DASHES); + printf("|--------"); + printf("|\n"); + fflush(stdout); + } } +} - simdjson_inline uint64_t lteq(const T m) const { - const simd8 mask = simd8::splat(m); - return simd8x64(this->chunks[0] <= mask, this->chunks[1] <= mask, - this->chunks[2] <= mask, this->chunks[3] <= mask) - .to_bitmask(); +template +inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, log_level level, Args&&... args) noexcept { + log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail, level, std::forward(args)...); +} + +template +inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, log_level level, Args&&... args) noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(level))) { + const int indent = depth * 2; + const auto buf = iter.token.buf; + auto msg = string_format(title, std::forward(args)...); + printf("| %*s%s%-*s ", indent, "", title_prefix, + LOG_EVENT_LEN - indent - int(strlen(title_prefix)), msg.c_str()); + { + // Print the current structural. + printf("| "); + // Before we begin, the index might point right before the document. + // This could be unsafe, see https://github.com/simdjson/simdjson/discussions/1938 + if (index < iter._root) { + printf("%*s", LOG_BUFFER_LEN, ""); + } else { + auto current_structural = &buf[*index]; + for (int i = 0; i < LOG_BUFFER_LEN; i++) { + printf("%c", printable_char(current_structural[i])); + } + } + printf(" "); + } + { + // Print the next structural. + printf("| "); + auto next_structural = &buf[*(index + 1)]; + for (int i = 0; i < LOG_SMALL_BUFFER_LEN; i++) { + printf("%c", printable_char(next_structural[i])); + } + printf(" "); + } + // printf("| %5u ", *(index+1)); + printf("| %5i ", depth); + printf("| %6.*s ", int(detail.size()), detail.data()); + printf("|\n"); + fflush(stdout); + } } -}; // struct simd8x64 +} -} // namespace simd -} // unnamed namespace +} // namespace logger +} // namespace ondemand } // namespace ppc64 } // namespace simdjson -#endif // SIMDJSON_PPC64_SIMD_INPUT_H -/* end file include/simdjson/ppc64/simd.h */ -/* begin file include/simdjson/generic/jsoncharutils.h */ +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H +/* end file simdjson/generic/ondemand/logger-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/object-inl.h for ppc64: #include "simdjson/generic/ondemand/object-inl.h" */ +/* begin file simdjson/generic/ondemand/object-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace ppc64 { -namespace { -namespace jsoncharutils { +namespace ondemand { -// return non-zero if not a structural or whitespace char -// zero otherwise -simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { - return internal::structural_or_whitespace_negated[c]; +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) & noexcept { + return find_field_unordered(key); +} +simdjson_inline simdjson_result object::operator[](const std::string_view key) && noexcept { + return std::forward(*this).find_field_unordered(key); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); +} +simdjson_inline simdjson_result object::find_field(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); } -simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { - return internal::structural_or_whitespace[c]; +simdjson_inline simdjson_result object::start(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_object().error() ); + return object(iter); +} +simdjson_inline simdjson_result object::start_root(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_root_object().error() ); + return object(iter); +} +simdjson_inline error_code object::consume() noexcept { + if(iter.is_at_key()) { + /** + * whenever you are pointing at a key, calling skip_child() is + * unsafe because you will hit a string and you will assume that + * it is string value, and this mistake will lead you to make bad + * depth computation. + */ + /** + * We want to 'consume' the key. We could really + * just do _json_iter->return_current_and_advance(); at this + * point, but, for clarity, we will use the high-level API to + * eat the key. We assume that the compiler optimizes away + * most of the work. + */ + simdjson_unused raw_json_string actual_key; + auto error = iter.field_key().get(actual_key); + if (error) { iter.abandon(); return error; }; + // Let us move to the value while we are at it. + if ((error = iter.field_value())) { iter.abandon(); return error; } + } + auto error_skip = iter.json_iter().skip_child(iter.depth()-1); + if(error_skip) { iter.abandon(); } + return error_skip; } -// returns a value with the high 16 bits set if not valid -// otherwise returns the conversion of the 4 hex digits at src into the bottom -// 16 bits of the 32-bit return register -// -// see -// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ -static inline uint32_t hex_to_u32_nocheck( - const uint8_t *src) { // strictly speaking, static inline is a C-ism - uint32_t v1 = internal::digit_to_val32[630 + src[0]]; - uint32_t v2 = internal::digit_to_val32[420 + src[1]]; - uint32_t v3 = internal::digit_to_val32[210 + src[2]]; - uint32_t v4 = internal::digit_to_val32[0 + src[3]]; - return v1 | v2 | v3 | v4; +simdjson_inline simdjson_result object::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + const uint8_t * final_point{iter._json_iter->peek()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); } -// given a code point cp, writes to c -// the utf-8 code, outputting the length in -// bytes, if the length is zero, the code point -// is invalid -// -// This can possibly be made faster using pdep -// and clz and table lookups, but JSON documents -// have few escaped code points, and the following -// function looks cheap. -// -// Note: we assume that surrogates are treated separately -// -simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { - if (cp <= 0x7F) { - c[0] = uint8_t(cp); - return 1; // ascii - } - if (cp <= 0x7FF) { - c[0] = uint8_t((cp >> 6) + 192); - c[1] = uint8_t((cp & 63) + 128); - return 2; // universal plane - // Surrogates are treated elsewhere... - //} //else if (0xd800 <= cp && cp <= 0xdfff) { - // return 0; // surrogates // could put assert here - } else if (cp <= 0xFFFF) { - c[0] = uint8_t((cp >> 12) + 224); - c[1] = uint8_t(((cp >> 6) & 63) + 128); - c[2] = uint8_t((cp & 63) + 128); - return 3; - } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this - // is not needed - c[0] = uint8_t((cp >> 18) + 240); - c[1] = uint8_t(((cp >> 12) & 63) + 128); - c[2] = uint8_t(((cp >> 6) & 63) + 128); - c[3] = uint8_t((cp & 63) + 128); - return 4; - } - // will return 0 when the code point was too large. - return 0; // bad r +simdjson_inline simdjson_result object::started(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.started_object().error() ); + return object(iter); } -#if SIMDJSON_IS_32BITS // _umul128 for x86, arm -// this is a slow emulation routine for 32-bit -// -static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { - return x * (uint64_t)y; +simdjson_inline object object::resume(const value_iterator &iter) noexcept { + return iter; } -static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { - uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); - uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); - uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); - uint64_t adbc_carry = !!(adbc < ad); - uint64_t lo = bd + (adbc << 32); - *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + - (adbc_carry << 32) + !!(lo < bd); - return lo; + +simdjson_inline object::object(const value_iterator &_iter) noexcept + : iter{_iter} +{ } + +simdjson_inline simdjson_result object::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } #endif + return object_iterator(iter); +} +simdjson_inline simdjson_result object::end() noexcept { + return object_iterator(iter); +} -using internal::value128; +inline simdjson_result object::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; -simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { - value128 answer; -#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS -#ifdef _M_ARM64 - // ARM64 has native support for 64-bit multiplications, no need to emultate - answer.high = __umulh(value1, value2); - answer.low = value1 * value2; -#else - answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 -#endif // _M_ARM64 -#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS - __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; - answer.low = uint64_t(r); - answer.high = uint64_t(r >> 64); -#endif - return answer; + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); + } + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = find_field(unescaped); // Take note find_field does not unescape keys when matching + } else { + child = find_field(key); + } + if(child.error()) { + return child; // we do not continue if there was an error + } + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); + } + return child; } -} // namespace jsoncharutils -} // unnamed namespace +simdjson_inline simdjson_result object::count_fields() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the object after counting the number of elements. + iter.reset_object(); + return count; +} + +simdjson_inline simdjson_result object::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_object().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; +} + +simdjson_inline simdjson_result object::reset() & noexcept { + return iter.reset_object(); +} + +} // namespace ondemand } // namespace ppc64 } // namespace simdjson -/* end file include/simdjson/generic/jsoncharutils.h */ -/* begin file include/simdjson/generic/atomparsing.h */ -namespace simdjson { -namespace ppc64 { -namespace { -/// @private -namespace atomparsing { -// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. -// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot -// be certain that the character pointer will be properly aligned. -// You might think that using memcpy makes this function expensive, but you'd be wrong. -// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); -// to the compile-time constant 1936482662. -simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(ppc64::ondemand::object &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} -// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. -// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. -simdjson_warn_unused -simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { - uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) - static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); - std::memcpy(&srcval, src, sizeof(uint32_t)); - return srcval ^ string_to_uint32(atom); +simdjson_inline simdjson_result simdjson_result::begin() noexcept { + if (error()) { return error(); } + return first.begin(); } - -simdjson_warn_unused -simdjson_inline bool is_valid_true_atom(const uint8_t *src) { - return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +simdjson_inline simdjson_result simdjson_result::end() noexcept { + if (error()) { return error(); } + return first.end(); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first)[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) && noexcept { + if (error()) { return error(); } + return std::forward(first).find_field(key); } -simdjson_warn_unused -simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { - if (len > 4) { return is_valid_true_atom(src); } - else if (len == 4) { return !str4ncmp(src, "true"); } - else { return false; } +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); } -simdjson_warn_unused -simdjson_inline bool is_valid_false_atom(const uint8_t *src) { - return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +inline simdjson_result simdjson_result::reset() noexcept { + if (error()) { return error(); } + return first.reset(); } -simdjson_warn_unused -simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { - if (len > 5) { return is_valid_false_atom(src); } - else if (len == 5) { return !str4ncmp(src+1, "alse"); } - else { return false; } +inline simdjson_result simdjson_result::is_empty() noexcept { + if (error()) { return error(); } + return first.is_empty(); } -simdjson_warn_unused -simdjson_inline bool is_valid_null_atom(const uint8_t *src) { - return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); } -simdjson_warn_unused -simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { - if (len > 4) { return is_valid_null_atom(src); } - else if (len == 4) { return !str4ncmp(src, "null"); } - else { return false; } +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); } - -} // namespace atomparsing -} // unnamed namespace -} // namespace ppc64 } // namespace simdjson -/* end file include/simdjson/generic/atomparsing.h */ -/* begin file include/simdjson/ppc64/stringparsing.h */ -#ifndef SIMDJSON_PPC64_STRINGPARSING_H -#define SIMDJSON_PPC64_STRINGPARSING_H +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H +/* end file simdjson/generic/ondemand/object-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/object_iterator-inl.h for ppc64: #include "simdjson/generic/ondemand/object_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/object_iterator-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace ppc64 { -namespace { +namespace ondemand { -using namespace simd; +// +// object_iterator +// -// Holds backslashes and quotes locations. -struct backslash_and_quote { -public: - static constexpr uint32_t BYTES_PROCESSED = 32; - simdjson_inline static backslash_and_quote - copy_and_find(const uint8_t *src, uint8_t *dst); +simdjson_inline object_iterator::object_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} - simdjson_inline bool has_quote_first() { - return ((bs_bits - 1) & quote_bits) != 0; - } - simdjson_inline bool has_backslash() { return bs_bits != 0; } - simdjson_inline int quote_index() { - return trailing_zeroes(quote_bits); - } - simdjson_inline int backslash_index() { - return trailing_zeroes(bs_bits); - } +simdjson_inline simdjson_result object_iterator::operator*() noexcept { + error_code error = iter.error(); + if (error) { iter.abandon(); return error; } + auto result = field::start(iter); + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (result.error()) { iter.abandon(); } + return result; +} +simdjson_inline bool object_iterator::operator==(const object_iterator &other) const noexcept { + return !(*this != other); +} +simdjson_inline bool object_iterator::operator!=(const object_iterator &) const noexcept { + return iter.is_open(); +} - uint32_t bs_bits; - uint32_t quote_bits; -}; // struct backslash_and_quote +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline object_iterator &object_iterator::operator++() noexcept { + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (!iter.is_open()) { return *this; } // Iterator will be released if there is an error -simdjson_inline backslash_and_quote -backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { - // this can read up to 31 bytes beyond the buffer size, but we require - // SIMDJSON_PADDING of padding - static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), - "backslash and quote finder must process fewer than " - "SIMDJSON_PADDING bytes"); - simd8 v0(src); - simd8 v1(src + sizeof(v0)); - v0.store(dst); - v1.store(dst + sizeof(v0)); + simdjson_unused error_code error; + if ((error = iter.skip_child() )) { return *this; } - // Getting a 64-bit bitmask is much cheaper than multiple 16-bit bitmasks on - // PPC; therefore, we smash them together into a 64-byte mask and get the - // bitmask from there. - uint64_t bs_and_quote = - simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); - return { - uint32_t(bs_and_quote), // bs_bits - uint32_t(bs_and_quote >> 32) // quote_bits - }; + simdjson_unused bool has_value; + if ((error = iter.has_next_field().get(has_value) )) { return *this; }; + return *this; } +SIMDJSON_POP_DISABLE_WARNINGS -} // unnamed namespace +// +// ### Live States +// +// While iterating or looking up values, depth >= iter.depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the object is first found and the iterator is just past the {. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the , or } before the next value. In this state, +// depth == iter.depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter.depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter.depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the object iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet field may be missing or not be an +// object--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter.depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between fields, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter.depth == depth, and at_start == false. +// +// Errors that occur while reading a field to give to the user (such as when the key is not a +// string or the field is missing a colon) are yielded immediately. Depth is then decremented, +// moving to the Finished state without transitioning through an Error state at all. +// +// ## Terminal State +// +// The terminal state has iter.depth < depth. at_start is always false. +// +// - Finished: When we have reached a }, we are finished. We signal this by decrementing depth. +// In this state, iter.depth < depth, at_start == false, and error == SUCCESS. +// + +} // namespace ondemand } // namespace ppc64 } // namespace simdjson -#endif // SIMDJSON_PPC64_STRINGPARSING_H -/* end file include/simdjson/ppc64/stringparsing.h */ -/* begin file include/simdjson/ppc64/numberparsing.h */ -#ifndef SIMDJSON_PPC64_NUMBERPARSING_H -#define SIMDJSON_PPC64_NUMBERPARSING_H - -#if defined(__linux__) -#include -#elif defined(__FreeBSD__) -#include -#endif - namespace simdjson { -namespace ppc64 { -namespace numberparsing { -// we don't have appropriate instructions, so let us use a scalar function -// credit: https://johnnylee-sde.github.io/Fast-numeric-string-to-int/ -/** @private */ -static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { - uint64_t val; - std::memcpy(&val, chars, sizeof(uint64_t)); -#ifdef __BIG_ENDIAN__ -#if defined(__linux__) - val = bswap_64(val); -#elif defined(__FreeBSD__) - val = bswap64(val); -#endif -#endif - val = (val & 0x0F0F0F0F0F0F0F0F) * 2561 >> 8; - val = (val & 0x00FF00FF00FF00FF) * 6553601 >> 16; - return uint32_t((val & 0x0000FFFF0000FFFF) * 42949672960001 >> 32); +simdjson_inline simdjson_result::simdjson_result( + ppc64::ondemand::object_iterator &&value +) noexcept + : implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); +} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base({}, error) +{ } -} // namespace numberparsing -} // namespace ppc64 -} // namespace simdjson +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; +} +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; +} +// Checks for ']' and ',' +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++first; + return *this; +} -#define SIMDJSON_SWAR_NUMBER_PARSING 1 +} // namespace simdjson -/* begin file include/simdjson/generic/numberparsing.h */ -#include +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/object_iterator-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/parser-inl.h for ppc64: #include "simdjson/generic/ondemand/parser-inl.h" */ +/* begin file simdjson/generic/ondemand/parser-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string_view.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/dom/base.h" // for MINIMAL_DOCUMENT_CAPACITY */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { namespace ppc64 { -/// @private -namespace numberparsing { - -/** - * The type of a JSON number - */ -enum class number_type { - floating_point_number=1, /// a binary64 number - signed_integer, /// a signed integer that fits in a 64-bit word using two's complement - unsigned_integer /// a positive integer larger or equal to 1<<63 -}; - -#ifdef JSON_TEST_NUMBERS -#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) -#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) -#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) -#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) -#else -#define INVALID_NUMBER(SRC) (NUMBER_ERROR) -#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) -#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) -#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) -#endif - -namespace { +namespace ondemand { -// Convert a mantissa, an exponent and a sign bit into an ieee64 double. -// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). -// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. -simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { - double d; - mantissa &= ~(1ULL << 52); - mantissa |= real_exponent << 52; - mantissa |= ((static_cast(negative)) << 63); - std::memcpy(&d, &mantissa, sizeof(d)); - return d; +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity} { } -// Attempts to compute i * 10^(power) exactly; and if "negative" is -// true, negate the result. -// This function will only work in some cases, when it does not work, success is -// set to false. This should work *most of the time* (like 99% of the time). -// We assume that power is in the [smallest_power, -// largest_power] interval: the caller is responsible for this check. -simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { - // we start with a fast path - // It was described in - // Clinger WD. How to read floating point numbers accurately. - // ACM SIGPLAN Notices. 1990 -#ifndef FLT_EVAL_METHOD -#error "FLT_EVAL_METHOD should be defined, please include cfloat." -#endif -#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) - // We cannot be certain that x/y is rounded to nearest. - if (0 <= power && power <= 22 && i <= 9007199254740991) -#else - if (-22 <= power && power <= 22 && i <= 9007199254740991) +simdjson_warn_unused simdjson_inline error_code parser::allocate(size_t new_capacity, size_t new_max_depth) noexcept { + if (new_capacity > max_capacity()) { return CAPACITY; } + if (string_buf && new_capacity == capacity() && new_max_depth == max_depth()) { return SUCCESS; } + + // string_capacity copied from document::allocate + _capacity = 0; + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset(new (std::nothrow) uint8_t[string_capacity]); +#if SIMDJSON_DEVELOPMENT_CHECKS + start_positions.reset(new (std::nothrow) token_position[new_max_depth]); #endif - { - // convert the integer into a double. This is lossless since - // 0 <= i <= 2^53 - 1. - d = double(i); - // - // The general idea is as follows. - // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then - // 1) Both s and p can be represented exactly as 64-bit floating-point - // values - // (binary64). - // 2) Because s and p can be represented exactly as floating-point values, - // then s * p - // and s / p will produce correctly rounded values. - // - if (power < 0) { - d = d / simdjson::internal::power_of_ten[-power]; - } else { - d = d * simdjson::internal::power_of_ten[power]; - } - if (negative) { - d = -d; - } - return true; + if (implementation) { + SIMDJSON_TRY( implementation->set_capacity(new_capacity) ); + SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) ); + } else { + SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) ); } - // When 22 < power && power < 22 + 16, we could - // hope for another, secondary fast path. It was - // described by David M. Gay in "Correctly rounded - // binary-decimal and decimal-binary conversions." (1990) - // If you need to compute i * 10^(22 + x) for x < 16, - // first compute i * 10^x, if you know that result is exact - // (e.g., when i * 10^x < 2^53), - // then you can still proceed and do (i * 10^x) * 10^22. - // Is this worth your time? - // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) - // for this second fast path to work. - // If you you have 22 < power *and* power < 22 + 16, and then you - // optimistically compute "i * 10^(x-22)", there is still a chance that you - // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of - // this optimization maybe less common than we would like. Source: - // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ - // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html + _capacity = new_capacity; + _max_depth = new_max_depth; + return SUCCESS; +} - // The fast path has now failed, so we are failing back on the slower path. +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } - // In the slow path, we need to adjust i so that it is > 1<<63 which is always - // possible, except if i == 0, so we handle i == 0 separately. - if(i == 0) { - d = negative ? -0.0 : 0.0; - return true; + // Allocate if needed + if (capacity() < json.length() || !string_buf) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); } + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return document::start({ reinterpret_cast(json.data()), this }); +} - // The exponent is 1024 + 63 + power - // + floor(log(5**power)/log(2)). - // The 1024 comes from the ieee64 standard. - // The 63 comes from the fact that we use a 64-bit word. - // - // Computing floor(log(5**power)/log(2)) could be - // slow. Instead we use a fast function. - // - // For power in (-400,350), we have that - // (((152170 + 65536) * power ) >> 16); - // is equal to - // floor(log(5**power)/log(2)) + power when power >= 0 - // and it is equal to - // ceil(log(5**-power)/log(2)) + power when power < 0 - // - // The 65536 is (1<<16) and corresponds to - // (65536 * power) >> 16 ---> power - // - // ((152170 * power ) >> 16) is equal to - // floor(log(5**power)/log(2)) - // - // Note that this is not magic: 152170/(1<<16) is - // approximatively equal to log(5)/log(2). - // The 1<<16 value is a power of two; we could use a - // larger power of 2 if we wanted to. - // - int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; - - - // We want the most significant bit of i to be 1. Shift if needed. - int lz = leading_zeroes(i); - i <<= lz; - - - // We are going to need to do some 64-bit arithmetic to get a precise product. - // We use a table lookup approach. - // It is safe because - // power >= smallest_power - // and power <= largest_power - // We recover the mantissa of the power, it has a leading 1. It is always - // rounded down. - // - // We want the most significant 64 bits of the product. We know - // this will be non-zero because the most significant bit of i is - // 1. - const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); - // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) - // - // The full_multiplication function computes the 128-bit product of two 64-bit words - // with a returned value of type value128 with a "low component" corresponding to the - // 64-bit least significant bits of the product and with a "high component" corresponding - // to the 64-bit most significant bits of the product. - simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); - // Both i and power_of_five_128[index] have their most significant bit set to 1 which - // implies that the either the most or the second most significant bit of the product - // is 1. We pack values in this manner for efficiency reasons: it maximizes the use - // we make of the product. It also makes it easy to reason about the product: there - // is 0 or 1 leading zero in the product. - - // Unless the least significant 9 bits of the high (64-bit) part of the full - // product are all 1s, then we know that the most significant 55 bits are - // exact and no further work is needed. Having 55 bits is necessary because - // we need 53 bits for the mantissa but we have to have one rounding bit and - // we can waste a bit if the most significant bit of the product is zero. - if((firstproduct.high & 0x1FF) == 0x1FF) { - // We want to compute i * 5^q, but only care about the top 55 bits at most. - // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing - // the full computation is wasteful. So we do what is called a "truncated - // multiplication". - // We take the most significant 64-bits, and we put them in - // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q - // to the desired approximation using one multiplication. Sometimes it does not suffice. - // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and - // then we get a better approximation to i * 5^q. In very rare cases, even that - // will not suffice, though it is seemingly very hard to find such a scenario. - // - // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat - // more complicated. - // - // There is an extra layer of complexity in that we need more than 55 bits of - // accuracy in the round-to-even scenario. - // - // The full_multiplication function computes the 128-bit product of two 64-bit words - // with a returned value of type value128 with a "low component" corresponding to the - // 64-bit least significant bits of the product and with a "high component" corresponding - // to the 64-bit most significant bits of the product. - simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); - firstproduct.low += secondproduct.high; - if(secondproduct.high > firstproduct.low) { firstproduct.high++; } - // At this point, we might need to add at most one to firstproduct, but this - // can only change the value of firstproduct.high if firstproduct.low is maximal. - if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { - // This is very unlikely, but if so, we need to do much more work! - return false; - } - } - uint64_t lower = firstproduct.low; - uint64_t upper = firstproduct.high; - // The final mantissa should be 53 bits with a leading 1. - // We shift it so that it occupies 54 bits with a leading 1. - /////// - uint64_t upperbit = upper >> 63; - uint64_t mantissa = upper >> (upperbit + 9); - lz += int(1 ^ upperbit); +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const char *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} - // Here we have mantissa < (1<<54). - int64_t real_exponent = exponent - lz; - if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? - // Here have that real_exponent <= 0 so -real_exponent >= 0 - if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. - d = negative ? -0.0 : 0.0; - return true; - } - // next line is safe because -real_exponent + 1 < 0 - mantissa >>= -real_exponent + 1; - // Thankfully, we can't have both "round-to-even" and subnormals because - // "round-to-even" only occurs for powers close to 0. - mantissa += (mantissa & 1); // round up - mantissa >>= 1; - // There is a weird scenario where we don't have a subnormal but just. - // Suppose we start with 2.2250738585072013e-308, we end up - // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal - // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round - // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer - // subnormal, but we can only know this after rounding. - // So we only declare a subnormal if we are smaller than the threshold. - real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; - d = to_double(mantissa, real_exponent, negative); - return true; - } - // We have to round to even. The "to even" part - // is only a problem when we are right in between two floats - // which we guard against. - // If we have lots of trailing zeros, we may fall right between two - // floating-point values. - // - // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] - // times a power of two. That is, it is right between a number with binary significand - // m and another number with binary significand m+1; and it must be the case - // that it cannot be represented by a float itself. - // - // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. - // Recall that 10^q = 5^q * 2^q. - // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that - // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. - // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so - // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have - // 2^{53} x 5^{-q} < 2^{64}. - // Hence we have 5^{-q} < 2^{11}$ or q>= -4. - // - // We require lower <= 1 and not lower == 0 because we could not prove that - // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. - if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { - if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { - mantissa &= ~1; // flip it so that we do not round up - } - } +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const uint8_t *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} - mantissa += mantissa & 1; - mantissa >>= 1; +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(std::string_view json, size_t allocated) & noexcept { + return iterate(padded_string_view(json, allocated)); +} - // Here we have mantissa < (1<<53), unless there was an overflow - if (mantissa >= (1ULL << 53)) { - ////////// - // This will happen when parsing values such as 7.2057594037927933e+16 - //////// - mantissa = (1ULL << 52); - real_exponent++; - } - mantissa &= ~(1ULL << 52); - // we have to check that real_exponent is in range, otherwise we bail out - if (simdjson_unlikely(real_exponent > 2046)) { - // We have an infinite value!!! We could actually throw an error here if we could. - return false; - } - d = to_double(mantissa, real_exponent, negative); - return true; +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const std::string &json) & noexcept { + return iterate(padded_string_view(json)); } -// We call a fallback floating-point parser that might be slow. Note -// it will accept JSON numbers, but the JSON spec. is more restrictive so -// before you call parse_float_fallback, you need to have validated the input -// string with the JSON grammar. -// It will return an error (false) if the parsed number is infinite. -// The string parsing itself always succeeds. We know that there is at least -// one digit. -static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { - *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); - // We do not accept infinite values. +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + padded_string_view json = result.value_unsafe(); + return iterate(json); +} - // Detecting finite values in a portable manner is ridiculously hard, ideally - // we would want to do: - // return !std::isfinite(*outDouble); - // but that mysteriously fails under legacy/old libc++ libraries, see - // https://github.com/simdjson/simdjson/issues/1286 - // - // Therefore, fall back to this solution (the extra parens are there - // to handle that max may be a macro on windows). - return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + const padded_string &json = result.value_unsafe(); + return iterate(json); } -static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { - *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); - // We do not accept infinite values. +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate_raw(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } - // Detecting finite values in a portable manner is ridiculously hard, ideally - // we would want to do: - // return !std::isfinite(*outDouble); - // but that mysteriously fails under legacy/old libc++ libraries, see - // https://github.com/simdjson/simdjson/issues/1286 - // - // Therefore, fall back to this solution (the extra parens are there - // to handle that max may be a macro on windows). - return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); + // Allocate if needed + if (capacity() < json.length()) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return json_iterator(reinterpret_cast(json.data()), this); } -// check quickly whether the next 8 chars are made of digits -// at a glance, it looks better than Mula's -// http://0x80.pl/articles/swar-digits-validate.html -simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { - uint64_t val; - // this can read up to 7 bytes beyond the buffer size, but we require - // SIMDJSON_PADDING of padding - static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); - std::memcpy(&val, chars, 8); - // a branchy method might be faster: - // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) - // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == - // 0x3030303030303030); - return (((val & 0xF0F0F0F0F0F0F0F0) | - (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == - 0x3333333333333333); +inline simdjson_result parser::iterate_many(const uint8_t *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + if(allow_comma_separated && batch_size < len) { batch_size = len; } + return document_stream(*this, buf, len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const char *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(reinterpret_cast(buf), len, batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const std::string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +} +inline simdjson_result parser::iterate_many(const padded_string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); } -template -SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later -simdjson_inline bool parse_digit(const uint8_t c, I &i) { - const uint8_t digit = static_cast(c - '0'); - if (digit > 9) { - return false; +simdjson_inline size_t parser::capacity() const noexcept { + return _capacity; +} +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; +} +simdjson_inline size_t parser::max_depth() const noexcept { + return _max_depth; +} + +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity < dom::MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = dom::MINIMAL_DOCUMENT_CAPACITY; } - // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication - i = 10 * i + digit; // might overflow, we will handle the overflow later - return true; } -simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { - // we continue with the fiction that we have an integer. If the - // floating point number is representable as x * 10^z for some integer - // z that fits in 53 bits, then we will be able to convert back the - // the integer into a float in a lossless manner. - const uint8_t *const first_after_period = p; +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement) const noexcept { + uint8_t *end = implementation->parse_string(in.buf, dst, allow_replacement); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} -#ifdef SIMDJSON_SWAR_NUMBER_PARSING -#if SIMDJSON_SWAR_NUMBER_PARSING - // this helps if we have lots of decimals! - // this turns out to be frequent enough. - if (is_made_of_eight_digits_fast(p)) { - i = i * 100000000 + parse_eight_digits_unrolled(p); - p += 8; - } -#endif // SIMDJSON_SWAR_NUMBER_PARSING -#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING - // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) - if (parse_digit(*p, i)) { ++p; } - while (parse_digit(*p, i)) { p++; } - exponent = first_after_period - p; - // Decimal without digits (123.) is illegal - if (exponent == 0) { - return INVALID_NUMBER(src); - } - return SUCCESS; +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept { + uint8_t *end = implementation->parse_wobbly_string(in.buf, dst); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; } -simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { - // Exp Sign: -123.456e[-]78 - bool neg_exp = ('-' == *p); - if (neg_exp || '+' == *p) { p++; } // Skip + as well +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson - // Exponent: -123.456e-[78] - auto start_exp = p; - int64_t exp_number = 0; - while (parse_digit(*p, exp_number)) { ++p; } - // It is possible for parse_digit to overflow. - // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. - // Thus we *must* check for possible overflow before we negate exp_number. +namespace simdjson { - // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into - // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may - // not oblige and may, in fact, generate two distinct paths in any case. It might be - // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off - // instructions for a simdjson_likely branch, an unconclusive gain. +simdjson_inline simdjson_result::simdjson_result(ppc64::ondemand::parser &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} - // If there were no digits, it's an error. - if (simdjson_unlikely(p == start_exp)) { - return INVALID_NUMBER(src); +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H +/* end file simdjson/generic/ondemand/parser-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/raw_json_string-inl.h for ppc64: #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +namespace ppc64 { +namespace ondemand { + +simdjson_inline raw_json_string::raw_json_string(const uint8_t * _buf) noexcept : buf{_buf} {} + +simdjson_inline const char * raw_json_string::raw() const noexcept { return reinterpret_cast(buf); } + + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(std::string_view target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;pos < target.size() && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;pos < target.size();pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } } - // We have a valid positive exponent in exp_number at this point, except that - // it may have overflowed. + return true; +} - // If there were more than 18 digits, we may have overflowed the integer. We have to do - // something!!!! - if (simdjson_unlikely(p > start_exp+18)) { - // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow - while (*start_exp == '0') { start_exp++; } - // 19 digits could overflow int64_t and is kind of absurd anyway. We don't - // support exponents smaller than -999,999,999,999,999,999 and bigger - // than 999,999,999,999,999,999. - // We can truncate. - // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before - // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could - // truncate at 324. - // Note that there is no reason to fail per se at this point in time. - // E.g., 0e999999999999999999999 is a fine number. - if (p > start_exp+18) { exp_number = 999999999999999999; } +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(const char* target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;target[pos] && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;target[pos];pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } } - // At this point, we know that exp_number is a sane, positive, signed integer. - // It is <= 999,999,999,999,999,999. As long as 'exponent' is in - // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' - // is bounded in magnitude by the size of the JSON input, we are fine in this universe. - // To sum it up: the next line should never overflow. - exponent += (neg_exp ? -exp_number : exp_number); - return SUCCESS; + return true; } -simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { - // It is possible that the integer had an overflow. - // We have to handle the case where we have 0.0000somenumber. - const uint8_t *start = start_digits; - while ((*start == '0') || (*start == '.')) { ++start; } - // we over-decrement by one when there is a '.' - return digit_count - size_t(start - start_digits); + +simdjson_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept { + // If we are going to call memcmp, then we must know something about the length of the raw_json_string. + return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); } -} // unnamed namespace +simdjson_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + if(target.size() <= SIMDJSON_PADDING) { + return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); + } + const char * r{raw()}; + size_t pos{0}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} -/** @private */ -template -error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { - double d; - if (parse_float_fallback(src, &d)) { - writer.append_double(d); - return SUCCESS; +simdjson_inline bool raw_json_string::is_equal(std::string_view target) const noexcept { + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } } - return INVALID_NUMBER(src); + if(r[pos] != '"') { return false; } + return true; } -/** @private */ -template -simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { - // If we frequently had to deal with long strings of digits, - // we could extend our code by using a 128-bit integer instead - // of a 64-bit integer. However, this is uncommon in practice. - // - // 9999999999999999999 < 2**64 so we can accommodate 19 digits. - // If we have a decimal separator, then digit_count - 1 is the number of digits, but we - // may not have a decimal separator! - if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { - // Ok, chances are good that we had an overflow! - // this is almost never going to get called!!! - // we start anew, going slowly!!! - // This will happen in the following examples: - // 10000000000000000000000000000000000000000000e+308 - // 3.1415926535897932384626433832795028841971693993751 - // - // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens - // because slow_float_parsing is a non-inlined function. If we passed our writer reference to - // it, it would force it to be stored in memory, preventing the compiler from picking it apart - // and putting into registers. i.e. if we pass it as reference, it gets slow. - // This is what forces the skip_double, as well. - error_code error = slow_float_parsing(src, writer); - writer.skip_double(); - return error; + +simdjson_inline bool raw_json_string::unsafe_is_equal(const char * target) const noexcept { + // Assumptions: 'target' does not contain unescaped quote characters, is null terminated and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } } - // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other - // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 - // To future reader: we'd love if someone found a better way, or at least could explain this result! - if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { - // - // Important: smallest_power is such that it leads to a zero value. - // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero - // so something x 10^-343 goes to zero, but not so with something x 10^-342. - static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); - // - if((exponent < simdjson::internal::smallest_power) || (i == 0)) { - // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero - WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); - return SUCCESS; - } else { // (exponent > largest_power) and (i != 0) - // We have, for sure, an infinite value and simdjson refuses to parse infinite values. - return INVALID_NUMBER(src); + if(r[pos] != '"') { return false; } + return true; +} + +simdjson_inline bool raw_json_string::is_equal(const char* target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; } } - double d; - if (!compute_float_64(exponent, i, negative, d)) { - // we are almost never going to get here. - if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } - } - WRITE_DOUBLE(d, src, writer); - return SUCCESS; + if(r[pos] != '"') { return false; } + return true; } -// for performance analysis, it is sometimes useful to skip parsing -#ifdef SIMDJSON_SKIPNUMBERPARSING +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept { + return a.unsafe_is_equal(c); +} -template -simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { - writer.append_s64(0); // always write zero - return SUCCESS; // always succeeds +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept { + return a == c; } -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } -simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } -simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } -#else +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept { + return !(a == c); +} -// parse the number at src -// define JSON_TEST_NUMBERS for unit testing -// -// It is assumed that the number is followed by a structural ({,},],[) character -// or a white space character. If that is not the case (e.g., when the JSON -// document is made of a single number), then it is necessary to copy the -// content and append a space before calling this function. -// -// Our objective is accurate parsing (ULP of 0) at high speed. -template -simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept { + return !(a == c); +} - // - // Check for minus sign - // - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape(json_iterator &iter, bool allow_replacement) const noexcept { + return iter.unescape(*this, allow_replacement); +} - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape_wobbly(json_iterator &iter) const noexcept { + return iter.unescape_wobbly(*this); +} - // - // Handle floats if there is a . or e (or both) - // - int64_t exponent = 0; - bool is_float = false; - if ('.' == *p) { - is_float = true; - ++p; - SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); - digit_count = int(p - start_digits); // used later to guard against overflows - } - if (('e' == *p) || ('E' == *p)) { - is_float = true; - ++p; - SIMDJSON_TRY( parse_exponent(src, p, exponent) ); - } - if (is_float) { - const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); - SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); - if (dirty_end) { return INVALID_NUMBER(src); } - return SUCCESS; +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &out, const raw_json_string &str) noexcept { + bool in_escape = false; + const char *s = str.raw(); + while (true) { + switch (*s) { + case '\\': in_escape = !in_escape; break; + case '"': if (in_escape) { in_escape = false; } else { return out; } break; + default: if (in_escape) { in_escape = false; } + } + out << *s; + s++; } +} - // The longest negative 64-bit number is 19 digits. - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - size_t longest_digit_count = negative ? 19 : 20; - if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } - if (digit_count == longest_digit_count) { - if (negative) { - // Anything negative above INT64_MAX+1 is invalid - if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } - WRITE_INTEGER(~i+1, src, writer); - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } - return SUCCESS; - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } - } +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson - // Write unsigned if it doesn't fit in a signed integer. - if (i > uint64_t(INT64_MAX)) { - WRITE_UNSIGNED(i, src, writer); - } else { - WRITE_INTEGER(negative ? (~i+1) : i, src, writer); - } - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } - return SUCCESS; +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(ppc64::ondemand::raw_json_string &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::raw() const noexcept { + if (error()) { return error(); } + return first.raw(); +} +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape(ppc64::ondemand::json_iterator &iter, bool allow_replacement) const noexcept { + if (error()) { return error(); } + return first.unescape(iter, allow_replacement); } +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape_wobbly(ppc64::ondemand::json_iterator &iter) const noexcept { + if (error()) { return error(); } + return first.unescape_wobbly(iter); +} +} // namespace simdjson -// Inlineable functions -namespace { +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H +/* end file simdjson/generic/ondemand/raw_json_string-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/serialization-inl.h for ppc64: #include "simdjson/generic/ondemand/serialization-inl.h" */ +/* begin file simdjson/generic/ondemand/serialization-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/serialization.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -// This table can be used to characterize the final character of an integer -// string. For JSON structural character and allowable white space characters, -// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise -// we return NUMBER_ERROR. -// Optimization note: we could easily reduce the size of the table by half (to 128) -// at the cost of an extra branch. -// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): -static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); -static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); -static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); +namespace simdjson { -const uint8_t integer_string_finisher[256] = { - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, - SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, - NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR}; +inline std::string_view trim(const std::string_view str) noexcept { + // We can almost surely do better by rolling our own find_first_not_of function. + size_t first = str.find_first_not_of(" \t\n\r"); + // If we have the empty string (just white space), then no trimming is possible, and + // we return the empty string_view. + if (std::string_view::npos == first) { return std::string_view(); } + size_t last = str.find_last_not_of(" \t\n\r"); + return str.substr(first, (last - first + 1)); +} -// Parse any number from 0 to 18,446,744,073,709,551,615 -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { - const uint8_t *p = src; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } +inline simdjson_result to_json_string(ppc64::ondemand::document& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } +inline simdjson_result to_json_string(ppc64::ondemand::document_reference& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(ppc64::ondemand::value& x) noexcept { + /** + * If we somehow receive a value that has already been consumed, + * then the following code could be in trouble. E.g., we create + * an array as needed, but if an array was already created, then + * it could be bad. + */ + using namespace ppc64::ondemand; + ppc64::ondemand::json_type t; + auto error = x.type().get(t); + if(error != SUCCESS) { return error; } + switch (t) + { + case json_type::array: + { + ppc64::ondemand::array array; + error = x.get_array().get(array); + if(error) { return error; } + return to_json_string(array); + } + case json_type::object: + { + ppc64::ondemand::object object; + error = x.get_object().get(object); + if(error) { return error; } + return to_json_string(object); + } + default: + return trim(x.raw_json_token()); } +} - return i; +inline simdjson_result to_json_string(ppc64::ondemand::object& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); } +inline simdjson_result to_json_string(ppc64::ondemand::array& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} -// Parse any number from 0 to 18,446,744,073,709,551,615 -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { - const uint8_t *p = src; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while ((p != src_end) && parse_digit(*p, i)) { p++; } +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } - } +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} - return i; +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); } -// Parse any number from 0 to 18,446,744,073,709,551,615 -simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { - const uint8_t *p = src + 1; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} +} // namespace simdjson - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if (*p != '"') { return NUMBER_ERROR; } +namespace simdjson { namespace ppc64 { namespace ondemand { - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - // Note: we use src[1] and not src[0] because src[0] is the quote character in this - // instance. - if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); } - - return i; } +#endif -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { - // - // Check for minus sign - // - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::document_reference& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } +} +#endif - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } +} +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); +} +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::ppc64::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } } +#endif +}}} // namespace simdjson::ppc64::ondemand -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { - // - // Check for minus sign - // - if(src == src_end) { return NUMBER_ERROR; } - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H +/* end file simdjson/generic/ondemand/serialization-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/token_iterator-inl.h for ppc64: #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/token_iterator-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while ((p != src_end) && parse_digit(*p, i)) { p++; } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; +namespace simdjson { +namespace ppc64 { +namespace ondemand { + +simdjson_inline token_iterator::token_iterator( + const uint8_t *_buf, + token_position position +) noexcept : buf{_buf}, _position{position} +{ } -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { - // - // Check for minus sign - // - bool negative = (*(src + 1) == '-'); - src += uint8_t(negative) + 1; +simdjson_inline uint32_t token_iterator::current_offset() const noexcept { + return *(_position); +} - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = src; - uint64_t i = 0; - while (parse_digit(*src, i)) { src++; } - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(src - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*src)) { - // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if(*src != '"') { return NUMBER_ERROR; } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; +simdjson_inline const uint8_t *token_iterator::return_current_and_advance() noexcept { + return &buf[*(_position++)]; +} + +simdjson_inline const uint8_t *token_iterator::peek(token_position position) const noexcept { + return &buf[*position]; +} +simdjson_inline uint32_t token_iterator::peek_index(token_position position) const noexcept { + return *position; +} +simdjson_inline uint32_t token_iterator::peek_length(token_position position) const noexcept { + return *(position+1) - *position; +} + +simdjson_inline const uint8_t *token_iterator::peek(int32_t delta) const noexcept { + return &buf[*(_position+delta)]; +} +simdjson_inline uint32_t token_iterator::peek_index(int32_t delta) const noexcept { + return *(_position+delta); +} +simdjson_inline uint32_t token_iterator::peek_length(int32_t delta) const noexcept { + return *(_position+delta+1) - *(_position+delta); } -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { - // - // Check for minus sign - // - bool negative = (*src == '-'); - src += uint8_t(negative); +simdjson_inline token_position token_iterator::position() const noexcept { + return _position; +} +simdjson_inline void token_iterator::set_position(token_position target_position) noexcept { + _position = target_position; +} - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while (parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } +simdjson_inline bool token_iterator::operator==(const token_iterator &other) const noexcept { + return _position == other._position; +} +simdjson_inline bool token_iterator::operator!=(const token_iterator &other) const noexcept { + return _position != other._position; +} +simdjson_inline bool token_iterator::operator>(const token_iterator &other) const noexcept { + return _position > other._position; +} +simdjson_inline bool token_iterator::operator>=(const token_iterator &other) const noexcept { + return _position >= other._position; +} +simdjson_inline bool token_iterator::operator<(const token_iterator &other) const noexcept { + return _position < other._position; +} +simdjson_inline bool token_iterator::operator<=(const token_iterator &other) const noexcept { + return _position <= other._position; +} - // - // Parse the decimal part. - // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely(*p == '.')) { - p++; - const uint8_t *start_decimal_digits = p; - if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while (parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; - } - } else { - overflow = p-src > 19; - } +namespace simdjson { - // - // Parse the exponent - // - if (*p == 'e' || *p == 'E') { - p++; - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; +simdjson_inline simdjson_result::simdjson_result(ppc64::ondemand::token_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while (parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } +} // namespace simdjson - exponent += exp_neg ? 0-exp : exp; - } +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/token_iterator-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/value-inl.h for ppc64: #include "simdjson/generic/ondemand/value-inl.h" */ +/* begin file simdjson/generic/ondemand/value-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } +namespace simdjson { +namespace ppc64 { +namespace ondemand { - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; +simdjson_inline value::value(const value_iterator &_iter) noexcept + : iter{_iter} +{ +} +simdjson_inline value value::start(const value_iterator &iter) noexcept { + return iter; +} +simdjson_inline value value::resume(const value_iterator &iter) noexcept { + return iter; +} - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), &d)) { - return NUMBER_ERROR; +simdjson_inline simdjson_result value::get_array() noexcept { + return array::start(iter); +} +simdjson_inline simdjson_result value::get_object() noexcept { + return object::start(iter); +} +simdjson_inline simdjson_result value::start_or_resume_object() noexcept { + if (iter.at_start()) { + return get_object(); + } else { + return object::resume(iter); } - return d; } -simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { - return (*src == '-'); +simdjson_inline simdjson_result value::get_raw_json_string() noexcept { + return iter.get_raw_json_string(); +} +simdjson_inline simdjson_result value::get_string(bool allow_replacement) noexcept { + return iter.get_string(allow_replacement); +} +simdjson_inline simdjson_result value::get_wobbly_string() noexcept { + return iter.get_wobbly_string(); +} +simdjson_inline simdjson_result value::get_double() noexcept { + return iter.get_double(); +} +simdjson_inline simdjson_result value::get_double_in_string() noexcept { + return iter.get_double_in_string(); +} +simdjson_inline simdjson_result value::get_uint64() noexcept { + return iter.get_uint64(); +} +simdjson_inline simdjson_result value::get_uint64_in_string() noexcept { + return iter.get_uint64_in_string(); +} +simdjson_inline simdjson_result value::get_int64() noexcept { + return iter.get_int64(); +} +simdjson_inline simdjson_result value::get_int64_in_string() noexcept { + return iter.get_int64_in_string(); +} +simdjson_inline simdjson_result value::get_bool() noexcept { + return iter.get_bool(); +} +simdjson_inline simdjson_result value::is_null() noexcept { + return iter.is_null(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_array(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_object(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_number(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_double(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result value::get() noexcept { return get_bool(); } -simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { - bool negative = (*src == '-'); - src += uint8_t(negative); - const uint8_t *p = src; - while(static_cast(*p - '0') <= 9) { p++; } - if ( p == src ) { return NUMBER_ERROR; } - if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } - return false; +template simdjson_inline error_code value::get(T &out) noexcept { + return get().get(out); } -simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { - bool negative = (*src == '-'); - src += uint8_t(negative); - const uint8_t *p = src; - while(static_cast(*p - '0') <= 9) { p++; } - if ( p == src ) { return NUMBER_ERROR; } - if (jsoncharutils::is_structural_or_whitespace(*p)) { - // We have an integer. - // If the number is negative and valid, it must be a signed integer. - if(negative) { return number_type::signed_integer; } - // We want values larger or equal to 9223372036854775808 to be unsigned - // integers, and the other values to be signed integers. - int digit_count = int(p - src); - if(digit_count >= 19) { - const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); - if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { - return number_type::unsigned_integer; - } - } - return number_type::signed_integer; - } - // Hopefully, we have 'e' or 'E' or '.'. - return number_type::floating_point_number; +#if SIMDJSON_EXCEPTIONS +simdjson_inline value::operator array() noexcept(false) { + return get_array(); +} +simdjson_inline value::operator object() noexcept(false) { + return get_object(); +} +simdjson_inline value::operator uint64_t() noexcept(false) { + return get_uint64(); } +simdjson_inline value::operator int64_t() noexcept(false) { + return get_int64(); +} +simdjson_inline value::operator double() noexcept(false) { + return get_double(); +} +simdjson_inline value::operator std::string_view() noexcept(false) { + return get_string(false); +} +simdjson_inline value::operator raw_json_string() noexcept(false) { + return get_raw_json_string(); +} +simdjson_inline value::operator bool() noexcept(false) { + return get_bool(); +} +#endif -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { - if(src == src_end) { return NUMBER_ERROR; } - // - // Check for minus sign - // - bool negative = (*src == '-'); - src += uint8_t(negative); +simdjson_inline simdjson_result value::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result value::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result value::count_elements() & noexcept { + simdjson_result answer; + auto a = get_array(); + answer = a.count_elements(); + // count_elements leaves you pointing inside the array, at the first element. + // We need to move back so that the user can create a new array (which requires that + // we point at '['). + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::count_fields() & noexcept { + simdjson_result answer; + auto a = get_object(); + answer = a.count_fields(); + iter.move_at_start(); + return answer; +} +simdjson_inline simdjson_result value::at(size_t index) noexcept { + auto a = get_array(); + return a.at(index); +} - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - if(p == src_end) { return NUMBER_ERROR; } - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while ((p != src_end) && parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } +simdjson_inline simdjson_result value::find_field(std::string_view key) noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result value::find_field(const char *key) noexcept { + return start_or_resume_object().find_field(key); +} - // - // Parse the decimal part. - // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely((p != src_end) && (*p == '.'))) { - p++; - const uint8_t *start_decimal_digits = p; - if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while ((p != src_end) && parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); +simdjson_inline simdjson_result value::find_field_unordered(std::string_view key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result value::find_field_unordered(const char *key) noexcept { + return start_or_resume_object().find_field_unordered(key); +} - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; - } - } else { - overflow = p-src > 19; - } +simdjson_inline simdjson_result value::operator[](std::string_view key) noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result value::operator[](const char *key) noexcept { + return start_or_resume_object()[key]; +} - // - // Parse the exponent - // - if ((p != src_end) && (*p == 'e' || *p == 'E')) { - p++; - if(p == src_end) { return NUMBER_ERROR; } - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; +simdjson_inline simdjson_result value::type() noexcept { + return iter.type(); +} - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while ((p != src_end) && parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } +simdjson_inline simdjson_result value::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); +} - exponent += exp_neg ? 0-exp : exp; - } +simdjson_inline bool value::is_negative() noexcept { + return iter.is_negative(); +} - if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } +simdjson_inline simdjson_result value::is_integer() noexcept { + return iter.is_integer(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number_type() noexcept { + return iter.get_number_type(); +} +simdjson_warn_unused simdjson_inline simdjson_result value::get_number() noexcept { + return iter.get_number(); +} - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; +simdjson_inline std::string_view value::raw_json_token() noexcept { + return std::string_view(reinterpret_cast(iter.peek_start()), iter.peek_start_length()); +} - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { - return NUMBER_ERROR; +simdjson_inline simdjson_result value::current_location() noexcept { + return iter.json_iter().current_location(); +} + +simdjson_inline int32_t value::current_depth() const noexcept{ + return iter.json_iter().depth(); +} + +simdjson_inline simdjson_result value::at_pointer(std::string_view json_pointer) noexcept { + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; } - return d; } -simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { - // - // Check for minus sign - // - bool negative = (*(src + 1) == '-'); - src += uint8_t(negative) + 1; +} // namespace ondemand +} // namespace ppc64 +} // namespace simdjson - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while (parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } +namespace simdjson { - // - // Parse the decimal part. - // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely(*p == '.')) { - p++; - const uint8_t *start_decimal_digits = p; - if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while (parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); +simdjson_inline simdjson_result::simdjson_result( + ppc64::ondemand::value &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + if (error()) { return error(); } + return {}; +} - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; - } - } else { - overflow = p-src > 19; - } +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field(key); +} - // - // Parse the exponent - // - if (*p == 'e' || *p == 'E') { - p++; - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} + +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) noexcept { + if (error()) { return error(); } + return first[key]; +} + +simdjson_inline simdjson_result simdjson_result::get_array() noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while (parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } +template simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return first.get(); +} +template simdjson_inline error_code simdjson_result::get(T &out) noexcept { + if (error()) { return error(); } + return first.get(out); +} - exponent += exp_neg ? 0-exp : exp; - } +template<> simdjson_inline simdjson_result simdjson_result::get() noexcept { + if (error()) { return error(); } + return std::move(first); +} +template<> simdjson_inline error_code simdjson_result::get(ppc64::ondemand::value &out) noexcept { + if (error()) { return error(); } + out = first; + return SUCCESS; +} - if (*p != '"') { return NUMBER_ERROR; } +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator ppc64::ondemand::array() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator ppc64::ondemand::object() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator ppc64::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), &d)) { - return NUMBER_ERROR; - } - return d; +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); } -} // unnamed namespace -#endif // SIMDJSON_SKIPNUMBERPARSING +simdjson_inline simdjson_result simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} -inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { - switch (type) { - case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; - case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; - case number_type::floating_point_number: out << "floating-point number (binary64)"; break; - default: SIMDJSON_UNREACHABLE(); - } - return out; +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); } -} // namespace numberparsing -} // namespace ppc64 } // namespace simdjson -/* end file include/simdjson/generic/numberparsing.h */ -#endif // SIMDJSON_PPC64_NUMBERPARSING_H -/* end file include/simdjson/ppc64/numberparsing.h */ -/* begin file include/simdjson/ppc64/end.h */ -/* end file include/simdjson/ppc64/end.h */ +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H +/* end file simdjson/generic/ondemand/value-inl.h for ppc64 */ +/* including simdjson/generic/ondemand/value_iterator-inl.h for ppc64: #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/value_iterator-inl.h for ppc64 */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/atomparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -#endif // SIMDJSON_IMPLEMENTATION_PPC64 +namespace simdjson { +namespace ppc64 { +namespace ondemand { -#endif // SIMDJSON_PPC64_H -/* end file include/simdjson/ppc64.h */ -/* begin file include/simdjson/westmere.h */ -#ifndef SIMDJSON_WESTMERE_H -#define SIMDJSON_WESTMERE_H +simdjson_inline value_iterator::value_iterator( + json_iterator *json_iter, + depth_t depth, + token_position start_position +) noexcept : _json_iter{json_iter}, _depth{depth}, _start_position{start_position} +{ +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_object(); +} -#if SIMDJSON_IMPLEMENTATION_WESTMERE +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_root_object(); +} -#if SIMDJSON_CAN_ALWAYS_RUN_WESTMERE -#define SIMDJSON_TARGET_WESTMERE -#define SIMDJSON_UNTARGET_WESTMERE -#else -#define SIMDJSON_TARGET_WESTMERE SIMDJSON_TARGET_REGION("sse4.2,pclmul,popcnt") -#define SIMDJSON_UNTARGET_WESTMERE SIMDJSON_UNTARGET_REGION +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_object() noexcept { + assert_at_container_start(); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); #endif + if (*_json_iter->peek() == '}') { + logger::log_value(*_json_iter, "empty object"); + _json_iter->return_current_and_advance(); + end_container(); + return false; + } + return true; +} -namespace simdjson { -/** - * Implementation for Westmere (Intel SSE4.2). - */ -namespace westmere { -} // namespace westmere -} // namespace simdjson - -// -// These two need to be included outside SIMDJSON_TARGET_WESTMERE -// -/* begin file include/simdjson/westmere/implementation.h */ -#ifndef SIMDJSON_WESTMERE_IMPLEMENTATION_H -#define SIMDJSON_WESTMERE_IMPLEMENTATION_H - - -// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE -namespace simdjson { -namespace westmere { - -namespace { -using namespace simdjson; -using namespace simdjson::dom; +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_object() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // object: e.g., `{"a":2} foo }`. Users concerned with garbage content should + // call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != '}') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing } at end"); + } + // If the last character is } *and* the first gibberish character is also '}' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == '}') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed object. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; } -/** - * @private - */ -class implementation final : public simdjson::implementation { -public: - simdjson_inline implementation() : simdjson::implementation("westmere", "Intel/AMD SSE4.2", internal::instruction_set::SSE42 | internal::instruction_set::PCLMULQDQ) {} - simdjson_warn_unused error_code create_dom_parser_implementation( - size_t capacity, - size_t max_length, - std::unique_ptr& dst - ) const noexcept final; - simdjson_warn_unused error_code minify(const uint8_t *buf, size_t len, uint8_t *dst, size_t &dst_len) const noexcept final; - simdjson_warn_unused bool validate_utf8(const char *buf, size_t len) const noexcept final; -}; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_object() noexcept { + auto error = check_root_object(); + if(error) { return error; } + return started_object(); +} -} // namespace westmere -} // namespace simdjson +simdjson_warn_unused simdjson_inline error_code value_iterator::end_container() noexcept { +#if SIMDJSON_CHECK_EOF + if (depth() > 1 && at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing parent ] or }"); } + // if (depth() <= 1 && !at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + _json_iter->ascend_to(depth()-1); + return SUCCESS; +} -#endif // SIMDJSON_WESTMERE_IMPLEMENTATION_H -/* end file include/simdjson/westmere/implementation.h */ -/* begin file include/simdjson/westmere/intrinsics.h */ -#ifndef SIMDJSON_WESTMERE_INTRINSICS_H -#define SIMDJSON_WESTMERE_INTRINSICS_H +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_field() noexcept { + assert_at_next(); -#if SIMDJSON_VISUAL_STUDIO -// under clang within visual studio, this will include -#include // visual studio or clang -#else -#include // elsewhere -#endif // SIMDJSON_VISUAL_STUDIO + // It's illegal to call this unless there are more tokens: anything that ends in } or ] is + // obligated to verify there are more tokens if they are not the top level. + switch (*_json_iter->return_current_and_advance()) { + case '}': + logger::log_end_value(*_json_iter, "object"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between object fields"); + } +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_raw(const std::string_view key) noexcept { + error_code error; + bool has_value; + // + // Initially, the object can be in one of a few different places: + // + // 1. The start of the object, at the first field: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + if (at_first_field()) { + has_value = true; -#if SIMDJSON_CLANG_VISUAL_STUDIO -/** - * You are not supposed, normally, to include these - * headers directly. Instead you should either include intrin.h - * or x86intrin.h. However, when compiling with clang - * under Windows (i.e., when _MSC_VER is set), these headers - * only get included *if* the corresponding features are detected - * from macros: - */ -#include // for _mm_alignr_epi8 -#include // for _mm_clmulepi64_si128 + // + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } #endif + return false; -static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + if ((error = skip_child() )) { abandon(); return error; } + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + while (has_value) { + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + //if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } -#endif // SIMDJSON_WESTMERE_INTRINSICS_H -/* end file include/simdjson/westmere/intrinsics.h */ + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); // Skip the value entirely + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } -// -// The rest need to be inside the region -// -/* begin file include/simdjson/westmere/begin.h */ -// redefining SIMDJSON_IMPLEMENTATION to "westmere" -// #define SIMDJSON_IMPLEMENTATION westmere -SIMDJSON_TARGET_WESTMERE -/* end file include/simdjson/westmere/begin.h */ + // If the loop ended, we're out of fields to look at. + return false; +} -// Declarations -/* begin file include/simdjson/generic/dom_parser_implementation.h */ +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_unordered_raw(const std::string_view key) noexcept { + /** + * When find_field_unordered_raw is called, we can either be pointing at the + * first key, pointing outside (at the closing brace) or if a key was matched + * we can be either pointing right afterthe ':' right before the value (that we need skip), + * or we may have consumed the value and we might be at a comma or at the + * final brace (ready for a call to has_next_field()). + */ + error_code error; + bool has_value; -namespace simdjson { -namespace westmere { + // First, we scan from that point to the end. + // If we don't find a match, we may loop back around, and scan from the beginning to that point. + token_position search_start = _json_iter->position(); -// expectation: sizeof(open_container) = 64/8. -struct open_container { - uint32_t tape_index; // where, on the tape, does the scope ([,{) begins - uint32_t count; // how many elements in the scope -}; // struct open_container + // We want to know whether we need to go back to the beginning. + bool at_first = at_first_field(); + /////////////// + // Initially, the object can be in one of a few different places: + // + // 1. At the first key: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + // + if (at_first) { + has_value = true; -static_assert(sizeof(open_container) == 64/8, "Open container must be 64 bits"); + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { -class dom_parser_implementation final : public internal::dom_parser_implementation { -public: - /** Tape location of each open { or [ */ - std::unique_ptr open_containers{}; - /** Whether each open container is a [ or { */ - std::unique_ptr is_array{}; - /** Buffer passed to stage 1 */ - const uint8_t *buf{}; - /** Length passed to stage 1 */ - size_t len{0}; - /** Document passed to stage 2 */ - dom::document *doc{}; +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + SIMDJSON_TRY(reset_object().get(has_value)); + at_first = true; + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + // If someone queried a key but they not did access the value, then we are left pointing + // at the ':' and we need to move forward through the value... If the value was + // processed then skip_child() does not move the iterator (but may adjust the depth). + if ((error = skip_child() )) { abandon(); return error; } + search_start = _json_iter->position(); + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } - inline dom_parser_implementation() noexcept; - inline dom_parser_implementation(dom_parser_implementation &&other) noexcept; - inline dom_parser_implementation &operator=(dom_parser_implementation &&other) noexcept; - dom_parser_implementation(const dom_parser_implementation &) = delete; - dom_parser_implementation &operator=(const dom_parser_implementation &) = delete; + // After initial processing, we will be in one of two states: + // + // ``` + // // At the beginning of a field + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // At the end of the object + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // ``` + // + // Next, we find a match starting from the current position. + while (has_value) { + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field - simdjson_warn_unused error_code parse(const uint8_t *buf, size_t len, dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage1(const uint8_t *buf, size_t len, stage1_mode partial) noexcept final; - simdjson_warn_unused error_code stage2(dom::document &doc) noexcept final; - simdjson_warn_unused error_code stage2_next(dom::document &doc) noexcept final; - simdjson_warn_unused uint8_t *parse_string(const uint8_t *src, uint8_t *dst, bool allow_replacement) const noexcept final; - simdjson_warn_unused uint8_t *parse_wobbly_string(const uint8_t *src, uint8_t *dst) const noexcept final; - inline simdjson_warn_unused error_code set_capacity(size_t capacity) noexcept final; - inline simdjson_warn_unused error_code set_max_depth(size_t max_depth) noexcept final; -private: - simdjson_inline simdjson_warn_unused error_code set_capacity_stage1(size_t capacity); + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } -}; + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } -} // namespace westmere -} // namespace simdjson + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + // Performance note: it maybe wasteful to rewind to the beginning when there might be + // no other query following. Indeed, it would require reskipping the whole object. + // Instead, you can just stay where you are. If there is a new query, there is always time + // to rewind. + if(at_first) { return false; } -namespace simdjson { -namespace westmere { + // If we reach the end without finding a match, search the rest of the fields starting at the + // beginning of the object. + // (We have already run through the object before, so we've already validated its structure. We + // don't check errors in this bit.) + SIMDJSON_TRY(reset_object().get(has_value)); + while (true) { + SIMDJSON_ASSUME(has_value); // we should reach search_start before ever reaching the end of the object + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field -inline dom_parser_implementation::dom_parser_implementation() noexcept = default; -inline dom_parser_implementation::dom_parser_implementation(dom_parser_implementation &&other) noexcept = default; -inline dom_parser_implementation &dom_parser_implementation::operator=(dom_parser_implementation &&other) noexcept = default; + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + error = field_key().get(actual_key); SIMDJSON_ASSUME(!error); + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + error = field_value(); SIMDJSON_ASSUME(!error); -// Leaving these here so they can be inlined if so desired -inline simdjson_warn_unused error_code dom_parser_implementation::set_capacity(size_t capacity) noexcept { - if(capacity > SIMDJSON_MAXSIZE_BYTES) { return CAPACITY; } - // Stage 1 index output - size_t max_structures = SIMDJSON_ROUNDUP_N(capacity, 64) + 2 + 7; - structural_indexes.reset( new (std::nothrow) uint32_t[max_structures] ); - if (!structural_indexes) { _capacity = 0; return MEMALLOC; } - structural_indexes[0] = 0; - n_structural_indexes = 0; + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } - _capacity = capacity; - return SUCCESS; + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // If we reached the end of the key-value pair we started from, then we know + // that the key is not there so we return false. We are either right before + // the next comma or the final brace. + if(_json_iter->position() == search_start) { return false; } + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + error = has_next_field().get(has_value); SIMDJSON_ASSUME(!error); + // If we make the mistake of exiting here, then we could be left pointing at a key + // in the middle of an object. That's not an allowable state. + } + // If the loop ended, we're out of fields to look at. The program should + // never reach this point. + return false; } +SIMDJSON_POP_DISABLE_WARNINGS -inline simdjson_warn_unused error_code dom_parser_implementation::set_max_depth(size_t max_depth) noexcept { - // Stage 2 stacks - open_containers.reset(new (std::nothrow) open_container[max_depth]); - is_array.reset(new (std::nothrow) bool[max_depth]); - if (!is_array || !open_containers) { _max_depth = 0; return MEMALLOC; } +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::field_key() noexcept { + assert_at_next(); - _max_depth = max_depth; - return SUCCESS; + const uint8_t *key = _json_iter->return_current_and_advance(); + if (*(key++) != '"') { return report_error(TAPE_ERROR, "Object key is not a string"); } + return raw_json_string(key); } -} // namespace westmere -} // namespace simdjson -/* end file include/simdjson/generic/dom_parser_implementation.h */ -/* begin file include/simdjson/westmere/bitmanipulation.h */ -#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H -#define SIMDJSON_WESTMERE_BITMANIPULATION_H - -namespace simdjson { -namespace westmere { -namespace { +simdjson_warn_unused simdjson_inline error_code value_iterator::field_value() noexcept { + assert_at_next(); -// We sometimes call trailing_zero on inputs that are zero, -// but the algorithms do not end up using the returned value. -// Sadly, sanitizers are not smart enough to figure it out. -SIMDJSON_NO_SANITIZE_UNDEFINED -// This function can be used safely even if not all bytes have been -// initialized. -// See issue https://github.com/simdjson/simdjson/issues/1965 -SIMDJSON_NO_SANITIZE_MEMORY -simdjson_inline int trailing_zeroes(uint64_t input_num) { -#if SIMDJSON_REGULAR_VISUAL_STUDIO - unsigned long ret; - // Search the mask data from least significant bit (LSB) - // to the most significant bit (MSB) for a set bit (1). - _BitScanForward64(&ret, input_num); - return (int)ret; -#else // SIMDJSON_REGULAR_VISUAL_STUDIO - return __builtin_ctzll(input_num); -#endif // SIMDJSON_REGULAR_VISUAL_STUDIO + if (*_json_iter->return_current_and_advance() != ':') { return report_error(TAPE_ERROR, "Missing colon in object field"); } + _json_iter->descend_to(depth()+1); + return SUCCESS; } -/* result might be undefined when input_num is zero */ -simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { - return input_num & (input_num-1); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_array(); } -/* result might be undefined when input_num is zero */ -simdjson_inline int leading_zeroes(uint64_t input_num) { -#if SIMDJSON_REGULAR_VISUAL_STUDIO - unsigned long leading_zero = 0; - // Search the mask data from most significant bit (MSB) - // to least significant bit (LSB) for a set bit (1). - if (_BitScanReverse64(&leading_zero, input_num)) - return (int)(63 - leading_zero); - else - return 64; -#else - return __builtin_clzll(input_num); -#endif// SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_root_array(); } -#if SIMDJSON_REGULAR_VISUAL_STUDIO -simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { - // note: we do not support legacy 32-bit Windows - return __popcnt64(input_num);// Visual Studio wants two underscores -} -#else -simdjson_inline long long int count_ones(uint64_t input_num) { - return _popcnt64(input_num); +inline std::string value_iterator::to_string() const noexcept { + auto answer = std::string("value_iterator [ depth : ") + std::to_string(_depth) + std::string(", "); + if(_json_iter != nullptr) { answer += _json_iter->to_string(); } + answer += std::string(" ]"); + return answer; } -#endif -simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, - uint64_t *result) { -#if SIMDJSON_REGULAR_VISUAL_STUDIO - return _addcarry_u64(0, value1, value2, - reinterpret_cast(result)); -#else - return __builtin_uaddll_overflow(value1, value2, - reinterpret_cast(result)); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_array() noexcept { + assert_at_container_start(); + if (*_json_iter->peek() == ']') { + logger::log_value(*_json_iter, "empty array"); + _json_iter->return_current_and_advance(); + SIMDJSON_TRY( end_container() ); + return false; + } + _json_iter->descend_to(depth()+1); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); #endif + return true; } -} // unnamed namespace -} // namespace westmere -} // namespace simdjson - -#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H -/* end file include/simdjson/westmere/bitmanipulation.h */ -/* begin file include/simdjson/westmere/bitmask.h */ -#ifndef SIMDJSON_WESTMERE_BITMASK_H -#define SIMDJSON_WESTMERE_BITMASK_H - -namespace simdjson { -namespace westmere { -namespace { - -// -// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. -// -// For example, prefix_xor(00100100) == 00011100 -// -simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { - // There should be no such thing with a processing supporting avx2 - // but not clmul. - __m128i all_ones = _mm_set1_epi8('\xFF'); - __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); - return _mm_cvtsi128_si64(result); +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_array() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // array: e.g., `[1, 2] foo]`. Users concerned with garbage content should + // also call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != ']') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing ] at end"); + } + // If the last character is ] *and* the first gibberish character is also ']' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == ']') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed array. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; } -} // unnamed namespace -} // namespace westmere -} // namespace simdjson - -#endif // SIMDJSON_WESTMERE_BITMASK_H -/* end file include/simdjson/westmere/bitmask.h */ -/* begin file include/simdjson/westmere/simd.h */ -#ifndef SIMDJSON_WESTMERE_SIMD_H -#define SIMDJSON_WESTMERE_SIMD_H - - -namespace simdjson { -namespace westmere { -namespace { -namespace simd { - - template - struct base { - __m128i value; - - // Zero constructor - simdjson_inline base() : value{__m128i()} {} - - // Conversion from SIMD register - simdjson_inline base(const __m128i _value) : value(_value) {} - - // Conversion to SIMD register - simdjson_inline operator const __m128i&() const { return this->value; } - simdjson_inline operator __m128i&() { return this->value; } - - // Bit operations - simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } - simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } - simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } - simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } - simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } - simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } - simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } - }; - - // Forward-declared so they can be used by splat and friends. - template - struct simd8; - - template> - struct base8: base> { - typedef uint16_t bitmask_t; - typedef uint32_t bitmask2_t; - - simdjson_inline base8() : base>() {} - simdjson_inline base8(const __m128i _value) : base>(_value) {} - - friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } - - static const int SIZE = sizeof(base>::value); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_array() noexcept { + auto error = check_root_array(); + if (error) { return error; } + return started_array(); +} - template - simdjson_inline simd8 prev(const simd8 prev_chunk) const { - return _mm_alignr_epi8(*this, prev_chunk, 16 - N); - } - }; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_element() noexcept { + assert_at_next(); - // SIMD byte mask type (returned by things like eq and gt) - template<> - struct simd8: base8 { - static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } + logger::log_event(*this, "has_next_element"); + switch (*_json_iter->return_current_and_advance()) { + case ']': + logger::log_end_value(*_json_iter, "array"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + _json_iter->descend_to(depth()+1); + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between array elements"); + } +} - simdjson_inline simd8() : base8() {} - simdjson_inline simd8(const __m128i _value) : base8(_value) {} - // Splat constructor - simdjson_inline simd8(bool _value) : base8(splat(_value)) {} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_bool(const uint8_t *json) const noexcept { + auto not_true = atomparsing::str4ncmp(json, "true"); + auto not_false = atomparsing::str4ncmp(json, "fals") | (json[4] ^ 'e'); + bool error = (not_true && not_false) || jsoncharutils::is_not_structural_or_whitespace(json[not_true ? 5 : 4]); + if (error) { return incorrect_type_error("Not a boolean"); } + return simdjson_result(!not_true); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_null(const uint8_t *json) const noexcept { + bool is_null_string = !atomparsing::str4ncmp(json, "null") && jsoncharutils::is_structural_or_whitespace(json[4]); + // if we start with 'n', we must be a null + if(!is_null_string && json[0]=='n') { return incorrect_type_error("Not a null but starts with n"); } + return is_null_string; +} - simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } - simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } - simdjson_inline simd8 operator~() const { return *this ^ true; } - }; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_string(bool allow_replacement) noexcept { + return get_raw_json_string().unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_wobbly_string() noexcept { + return get_raw_json_string().unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_raw_json_string() noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64() noexcept { + auto result = numberparsing::parse_unsigned(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64_in_string() noexcept { + auto result = numberparsing::parse_unsigned_in_string(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64() noexcept { + auto result = numberparsing::parse_integer(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64_in_string() noexcept { + auto result = numberparsing::parse_integer_in_string(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double() noexcept { + auto result = numberparsing::parse_double(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double_in_string() noexcept { + auto result = numberparsing::parse_double_in_string(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_bool() noexcept { + auto result = parse_bool(peek_non_root_scalar("bool")); + if(result.error() == SUCCESS) { advance_non_root_scalar("bool"); } + return result; +} +simdjson_inline simdjson_result value_iterator::is_null() noexcept { + bool is_null_value; + SIMDJSON_TRY(parse_null(peek_non_root_scalar("null")).get(is_null_value)); + if(is_null_value) { advance_non_root_scalar("null"); } + return is_null_value; +} +simdjson_inline bool value_iterator::is_negative() noexcept { + return numberparsing::is_negative(peek_non_root_scalar("numbersign")); +} +simdjson_inline bool value_iterator::is_root_negative() noexcept { + return numberparsing::is_negative(peek_root_scalar("numbersign")); +} +simdjson_inline simdjson_result value_iterator::is_integer() noexcept { + return numberparsing::is_integer(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number_type() noexcept { + return numberparsing::get_number_type(peek_non_root_scalar("integer")); +} +simdjson_inline simdjson_result value_iterator::get_number() noexcept { + number num; + error_code error = numberparsing::parse_number(peek_non_root_scalar("number"), num); + if(error) { return error; } + return num; +} - template - struct base8_numeric: base8 { - static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } - static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } - static simdjson_inline simd8 load(const T values[16]) { - return _mm_loadu_si128(reinterpret_cast(values)); - } - // Repeat 16 values as many times as necessary (usually for lookup tables) - static simdjson_inline simd8 repeat_16( - T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, - T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 - ) { - return simd8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - ); - } +simdjson_inline simdjson_result value_iterator::is_root_integer(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("is_root_integer"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + return false; // if there are more than 20 characters, it cannot be represented as an integer. + } + auto answer = numberparsing::is_integer(tmpbuf); + // If the parsing was a success, we must still check that it is + // a single scalar. Note that we parse first because of cases like '[]' where + // getting TRAILING_CONTENT is wrong. + if(check_trailing && (answer.error() == SUCCESS) && (!_json_iter->is_single_token())) { return TRAILING_CONTENT; } + return answer; +} - simdjson_inline base8_numeric() : base8() {} - simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} +simdjson_inline simdjson_result value_iterator::get_root_number_type(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto answer = numberparsing::get_number_type(tmpbuf); + if (check_trailing && (answer.error() == SUCCESS) && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + return answer; +} +simdjson_inline simdjson_result value_iterator::get_root_number(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + number num; + error_code error = numberparsing::parse_number(tmpbuf, num); + if(error) { return error; } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("number"); + return num; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_string(bool check_trailing, bool allow_replacement) noexcept { + return get_root_raw_json_string(check_trailing).unescape(json_iter(), allow_replacement); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_wobbly_string(bool check_trailing) noexcept { + return get_root_raw_json_string(check_trailing).unescape_wobbly(json_iter()); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_raw_json_string(bool check_trailing) noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_scalar("string"); + return raw_json_string(json+1); +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } - // Store to array - simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } + auto result = numberparsing::parse_integer(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } - // Override to distinguish from bool version - simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } + auto result = numberparsing::parse_integer_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} - // Addition/subtraction are the same for signed and unsigned - simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } - simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } - simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } - simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; +} +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_bool(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("bool"); + uint8_t tmpbuf[5+1+1]; // +1 for null termination + tmpbuf[5+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 5+1)) { return incorrect_type_error("Not a boolean"); } + auto result = parse_bool(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("bool"); + } + return result; +} +simdjson_inline simdjson_result value_iterator::is_root_null(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("null"); + bool result = (max_len >= 4 && !atomparsing::str4ncmp(json, "null") && + (max_len == 4 || jsoncharutils::is_structural_or_whitespace(json[4]))); + if(result) { // we have something that looks like a null. + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("null"); + } + return result; +} - // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) - template - simdjson_inline simd8 lookup_16(simd8 lookup_table) const { - return _mm_shuffle_epi8(lookup_table, *this); - } +simdjson_warn_unused simdjson_inline error_code value_iterator::skip_child() noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth >= _depth ); - // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). - // Passing a 0 value for mask would be equivalent to writing out every byte to output. - // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes - // get written. - // Design consideration: it seems like a function with the - // signature simd8 compress(uint32_t mask) would be - // sensible, but the AVX ISA makes this kind of approach difficult. - template - simdjson_inline void compress(uint16_t mask, L * output) const { - using internal::thintable_epi8; - using internal::BitsSetTable256mul2; - using internal::pshufb_combine_table; - // this particular implementation was inspired by work done by @animetosho - // we do it in two steps, first 8 bytes and then second 8 bytes - uint8_t mask1 = uint8_t(mask); // least significant 8 bits - uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits - // next line just loads the 64-bit values thintable_epi8[mask1] and - // thintable_epi8[mask2] into a 128-bit register, using only - // two instructions on most compilers. - __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); - // we increment by 0x08 the second half of the mask - shufmask = - _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); - // this is the version "nearly pruned" - __m128i pruned = _mm_shuffle_epi8(*this, shufmask); - // we still need to put the two halves together. - // we compute the popcount of the first half: - int pop1 = BitsSetTable256mul2[mask1]; - // then load the corresponding mask, what it does is to write - // only the first pop1 bytes from the first 8 bytes, and then - // it fills in with the bytes from the second 8 bytes + some filling - // at the end. - __m128i compactmask = - _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); - __m128i answer = _mm_shuffle_epi8(pruned, compactmask); - _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); - } + return _json_iter->skip_child(depth()); +} - template - simdjson_inline simd8 lookup_16( - L replace0, L replace1, L replace2, L replace3, - L replace4, L replace5, L replace6, L replace7, - L replace8, L replace9, L replace10, L replace11, - L replace12, L replace13, L replace14, L replace15) const { - return lookup_16(simd8::repeat_16( - replace0, replace1, replace2, replace3, - replace4, replace5, replace6, replace7, - replace8, replace9, replace10, replace11, - replace12, replace13, replace14, replace15 - )); - } - }; +simdjson_inline value_iterator value_iterator::child() const noexcept { + assert_at_child(); + return { _json_iter, depth()+1, _json_iter->token.position() }; +} - // Signed bytes - template<> - struct simd8 : base8_numeric { - simdjson_inline simd8() : base8_numeric() {} - simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} - // Splat constructor - simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} - // Array constructor - simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} - // Member-by-member initialization - simdjson_inline simd8( - int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, - int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 - ) : simd8(_mm_setr_epi8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - )) {} - // Repeat 16 values as many times as necessary (usually for lookup tables) - simdjson_inline static simd8 repeat_16( - int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, - int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 - ) { - return simd8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - ); - } +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and iterator depth, which is a desired effect. It does not happen if is_open is +// marked non-inline. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline bool value_iterator::is_open() const noexcept { + return _json_iter->depth() >= depth(); +} +SIMDJSON_POP_DISABLE_WARNINGS - // Order-sensitive comparisons - simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } - simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } - simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } - simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } - }; +simdjson_inline bool value_iterator::at_end() const noexcept { + return _json_iter->at_end(); +} - // Unsigned bytes - template<> - struct simd8: base8_numeric { - simdjson_inline simd8() : base8_numeric() {} - simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} - // Splat constructor - simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} - // Array constructor - simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} - // Member-by-member initialization - simdjson_inline simd8( - uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, - uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 - ) : simd8(_mm_setr_epi8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - )) {} - // Repeat 16 values as many times as necessary (usually for lookup tables) - simdjson_inline static simd8 repeat_16( - uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, - uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 - ) { - return simd8( - v0, v1, v2, v3, v4, v5, v6, v7, - v8, v9, v10,v11,v12,v13,v14,v15 - ); - } +simdjson_inline bool value_iterator::at_start() const noexcept { + return _json_iter->token.position() == start_position(); +} - // Saturated math - simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } - simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } +simdjson_inline bool value_iterator::at_first_field() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + return _json_iter->token.position() == start_position() + 1; +} - // Order-specific operations - simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } - simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } - // Same as >, but only guarantees true is nonzero (< guarantees true = -1) - simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } - // Same as <, but only guarantees true is nonzero (< guarantees true = -1) - simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } - simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } - simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } - simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } - simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } +simdjson_inline void value_iterator::abandon() noexcept { + _json_iter->abandon(); +} - // Bit-specific operations - simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } - simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } - simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } - simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } - simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } - simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } - simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } - simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } - simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } - template - simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } - template - simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } - // Get one of the bits and make a bitmask out of it. - // e.g. value.get_bit<7>() gets the high bit - template - simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } - }; +simdjson_warn_unused simdjson_inline depth_t value_iterator::depth() const noexcept { + return _depth; +} +simdjson_warn_unused simdjson_inline error_code value_iterator::error() const noexcept { + return _json_iter->error; +} +simdjson_warn_unused simdjson_inline uint8_t *&value_iterator::string_buf_loc() noexcept { + return _json_iter->string_buf_loc(); +} +simdjson_warn_unused simdjson_inline const json_iterator &value_iterator::json_iter() const noexcept { + return *_json_iter; +} +simdjson_warn_unused simdjson_inline json_iterator &value_iterator::json_iter() noexcept { + return *_json_iter; +} - template - struct simd8x64 { - static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); - static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); - const simd8 chunks[NUM_CHUNKS]; +simdjson_inline const uint8_t *value_iterator::peek_start() const noexcept { + return _json_iter->peek(start_position()); +} +simdjson_inline uint32_t value_iterator::peek_start_length() const noexcept { + return _json_iter->peek_length(start_position()); +} - simd8x64(const simd8x64& o) = delete; // no copy allowed - simd8x64& operator=(const simd8& other) = delete; // no assignment allowed - simd8x64() = delete; // no default constructor allowed +simdjson_inline const uint8_t *value_iterator::peek_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return peek_start(); } - simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} - simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + return _json_iter->peek(); +} - simdjson_inline void store(T ptr[64]) const { - this->chunks[0].store(ptr+sizeof(simd8)*0); - this->chunks[1].store(ptr+sizeof(simd8)*1); - this->chunks[2].store(ptr+sizeof(simd8)*2); - this->chunks[3].store(ptr+sizeof(simd8)*3); - } +simdjson_inline void value_iterator::advance_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return; } - simdjson_inline simd8 reduce_or() const { - return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); - } + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} - simdjson_inline uint64_t compress(uint64_t mask, T * output) const { - this->chunks[0].compress(uint16_t(mask), output); - this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); - this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); - this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); - return 64 - count_ones(mask); - } +simdjson_inline error_code value_iterator::start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept { + logger::log_start_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + const uint8_t *json; + if (!is_at_start()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + json = peek_start(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + } else { + assert_at_start(); + /** + * We should be prudent. Let us peek. If it is not the right type, we + * return an error. Only once we have determined that we have the right + * type are we allowed to advance! + */ + json = _json_iter->peek(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + _json_iter->return_current_and_advance(); + } - simdjson_inline uint64_t to_bitmask() const { - uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); - uint64_t r1 = this->chunks[1].to_bitmask() ; - uint64_t r2 = this->chunks[2].to_bitmask() ; - uint64_t r3 = this->chunks[3].to_bitmask() ; - return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); - } - simdjson_inline uint64_t eq(const T m) const { - const simd8 mask = simd8::splat(m); - return simd8x64( - this->chunks[0] == mask, - this->chunks[1] == mask, - this->chunks[2] == mask, - this->chunks[3] == mask - ).to_bitmask(); - } + return SUCCESS; +} - simdjson_inline uint64_t eq(const simd8x64 &other) const { - return simd8x64( - this->chunks[0] == other.chunks[0], - this->chunks[1] == other.chunks[1], - this->chunks[2] == other.chunks[2], - this->chunks[3] == other.chunks[3] - ).to_bitmask(); - } - simdjson_inline uint64_t lteq(const T m) const { - const simd8 mask = simd8::splat(m); - return simd8x64( - this->chunks[0] <= mask, - this->chunks[1] <= mask, - this->chunks[2] <= mask, - this->chunks[3] <= mask - ).to_bitmask(); - } - }; // struct simd8x64 +simdjson_inline const uint8_t *value_iterator::peek_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } -} // namespace simd -} // unnamed namespace -} // namespace westmere -} // namespace simdjson + assert_at_root(); + return _json_iter->peek(); +} +simdjson_inline const uint8_t *value_iterator::peek_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } -#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H -/* end file include/simdjson/westmere/simd.h */ -/* begin file include/simdjson/generic/jsoncharutils.h */ + assert_at_non_root_start(); + return _json_iter->peek(); +} -namespace simdjson { -namespace westmere { -namespace { -namespace jsoncharutils { +simdjson_inline void value_iterator::advance_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } -// return non-zero if not a structural or whitespace char -// zero otherwise -simdjson_inline uint32_t is_not_structural_or_whitespace(uint8_t c) { - return internal::structural_or_whitespace_negated[c]; + assert_at_root(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); } +simdjson_inline void value_iterator::advance_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } -simdjson_inline uint32_t is_structural_or_whitespace(uint8_t c) { - return internal::structural_or_whitespace[c]; + assert_at_non_root_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); } -// returns a value with the high 16 bits set if not valid -// otherwise returns the conversion of the 4 hex digits at src into the bottom -// 16 bits of the 32-bit return register -// -// see -// https://lemire.me/blog/2019/04/17/parsing-short-hexadecimal-strings-efficiently/ -static inline uint32_t hex_to_u32_nocheck( - const uint8_t *src) { // strictly speaking, static inline is a C-ism - uint32_t v1 = internal::digit_to_val32[630 + src[0]]; - uint32_t v2 = internal::digit_to_val32[420 + src[1]]; - uint32_t v3 = internal::digit_to_val32[210 + src[2]]; - uint32_t v4 = internal::digit_to_val32[0 + src[3]]; - return v1 | v2 | v3 | v4; +simdjson_inline error_code value_iterator::incorrect_type_error(const char *message) const noexcept { + logger::log_error(*_json_iter, start_position(), depth(), message); + return INCORRECT_TYPE; } -// given a code point cp, writes to c -// the utf-8 code, outputting the length in -// bytes, if the length is zero, the code point -// is invalid -// -// This can possibly be made faster using pdep -// and clz and table lookups, but JSON documents -// have few escaped code points, and the following -// function looks cheap. -// -// Note: we assume that surrogates are treated separately -// -simdjson_inline size_t codepoint_to_utf8(uint32_t cp, uint8_t *c) { - if (cp <= 0x7F) { - c[0] = uint8_t(cp); - return 1; // ascii - } - if (cp <= 0x7FF) { - c[0] = uint8_t((cp >> 6) + 192); - c[1] = uint8_t((cp & 63) + 128); - return 2; // universal plane - // Surrogates are treated elsewhere... - //} //else if (0xd800 <= cp && cp <= 0xdfff) { - // return 0; // surrogates // could put assert here - } else if (cp <= 0xFFFF) { - c[0] = uint8_t((cp >> 12) + 224); - c[1] = uint8_t(((cp >> 6) & 63) + 128); - c[2] = uint8_t((cp & 63) + 128); - return 3; - } else if (cp <= 0x10FFFF) { // if you know you have a valid code point, this - // is not needed - c[0] = uint8_t((cp >> 18) + 240); - c[1] = uint8_t(((cp >> 12) & 63) + 128); - c[2] = uint8_t(((cp >> 6) & 63) + 128); - c[3] = uint8_t((cp & 63) + 128); - return 4; - } - // will return 0 when the code point was too large. - return 0; // bad r +simdjson_inline bool value_iterator::is_at_start() const noexcept { + return position() == start_position(); } -#if SIMDJSON_IS_32BITS // _umul128 for x86, arm -// this is a slow emulation routine for 32-bit -// -static simdjson_inline uint64_t __emulu(uint32_t x, uint32_t y) { - return x * (uint64_t)y; +simdjson_inline bool value_iterator::is_at_key() const noexcept { + // Keys are at the same depth as the object. + // Note here that we could be safer and check that we are within an object, + // but we do not. + return _depth == _json_iter->_depth && *_json_iter->peek() == '"'; } -static simdjson_inline uint64_t _umul128(uint64_t ab, uint64_t cd, uint64_t *hi) { - uint64_t ad = __emulu((uint32_t)(ab >> 32), (uint32_t)cd); - uint64_t bd = __emulu((uint32_t)ab, (uint32_t)cd); - uint64_t adbc = ad + __emulu((uint32_t)ab, (uint32_t)(cd >> 32)); - uint64_t adbc_carry = !!(adbc < ad); - uint64_t lo = bd + (adbc << 32); - *hi = __emulu((uint32_t)(ab >> 32), (uint32_t)(cd >> 32)) + (adbc >> 32) + - (adbc_carry << 32) + !!(lo < bd); - return lo; + +simdjson_inline bool value_iterator::is_at_iterator_start() const noexcept { + // We can legitimately be either at the first value ([1]), or after the array if it's empty ([]). + auto delta = position() - start_position(); + return delta == 1 || delta == 2; } -#endif -using internal::value128; +inline void value_iterator::assert_at_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} -simdjson_inline value128 full_multiplication(uint64_t value1, uint64_t value2) { - value128 answer; -#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS -#ifdef _M_ARM64 - // ARM64 has native support for 64-bit multiplications, no need to emultate - answer.high = __umulh(value1, value2); - answer.low = value1 * value2; -#else - answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 -#endif // _M_ARM64 -#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS - __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; - answer.low = uint64_t(r); - answer.high = uint64_t(r >> 64); -#endif - return answer; +inline void value_iterator::assert_at_container_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position + 1 ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); } -} // namespace jsoncharutils -} // unnamed namespace -} // namespace westmere -} // namespace simdjson -/* end file include/simdjson/generic/jsoncharutils.h */ -/* begin file include/simdjson/generic/atomparsing.h */ -namespace simdjson { -namespace westmere { -namespace { -/// @private -namespace atomparsing { - -// The string_to_uint32 is exclusively used to map literal strings to 32-bit values. -// We use memcpy instead of a pointer cast to avoid undefined behaviors since we cannot -// be certain that the character pointer will be properly aligned. -// You might think that using memcpy makes this function expensive, but you'd be wrong. -// All decent optimizing compilers (GCC, clang, Visual Studio) will compile string_to_uint32("false"); -// to the compile-time constant 1936482662. -simdjson_inline uint32_t string_to_uint32(const char* str) { uint32_t val; std::memcpy(&val, str, sizeof(uint32_t)); return val; } +inline void value_iterator::assert_at_next() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); +} +simdjson_inline void value_iterator::move_at_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position); +} -// Again in str4ncmp we use a memcpy to avoid undefined behavior. The memcpy may appear expensive. -// Yet all decent optimizing compilers will compile memcpy to a single instruction, just about. -simdjson_warn_unused -simdjson_inline uint32_t str4ncmp(const uint8_t *src, const char* atom) { - uint32_t srcval; // we want to avoid unaligned 32-bit loads (undefined in C/C++) - static_assert(sizeof(uint32_t) <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be larger than 4 bytes"); - std::memcpy(&srcval, src, sizeof(uint32_t)); - return srcval ^ string_to_uint32(atom); +simdjson_inline void value_iterator::move_at_container_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position + 1); } -simdjson_warn_unused -simdjson_inline bool is_valid_true_atom(const uint8_t *src) { - return (str4ncmp(src, "true") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +simdjson_inline simdjson_result value_iterator::reset_array() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_array(); } -simdjson_warn_unused -simdjson_inline bool is_valid_true_atom(const uint8_t *src, size_t len) { - if (len > 4) { return is_valid_true_atom(src); } - else if (len == 4) { return !str4ncmp(src, "true"); } - else { return false; } +simdjson_inline simdjson_result value_iterator::reset_object() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_object(); } -simdjson_warn_unused -simdjson_inline bool is_valid_false_atom(const uint8_t *src) { - return (str4ncmp(src+1, "alse") | jsoncharutils::is_not_structural_or_whitespace(src[5])) == 0; +inline void value_iterator::assert_at_child() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth + 1 ); + SIMDJSON_ASSUME( _depth > 0 ); } -simdjson_warn_unused -simdjson_inline bool is_valid_false_atom(const uint8_t *src, size_t len) { - if (len > 5) { return is_valid_false_atom(src); } - else if (len == 5) { return !str4ncmp(src+1, "alse"); } - else { return false; } +inline void value_iterator::assert_at_root() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth == 1 ); } -simdjson_warn_unused -simdjson_inline bool is_valid_null_atom(const uint8_t *src) { - return (str4ncmp(src, "null") | jsoncharutils::is_not_structural_or_whitespace(src[4])) == 0; +inline void value_iterator::assert_at_non_root_start() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth > 1 ); } -simdjson_warn_unused -simdjson_inline bool is_valid_null_atom(const uint8_t *src, size_t len) { - if (len > 4) { return is_valid_null_atom(src); } - else if (len == 4) { return !str4ncmp(src, "null"); } - else { return false; } +inline void value_iterator::assert_is_valid() const noexcept { + SIMDJSON_ASSUME( _json_iter != nullptr ); } -} // namespace atomparsing -} // unnamed namespace -} // namespace westmere -} // namespace simdjson -/* end file include/simdjson/generic/atomparsing.h */ -/* begin file include/simdjson/westmere/stringparsing.h */ -#ifndef SIMDJSON_WESTMERE_STRINGPARSING_H -#define SIMDJSON_WESTMERE_STRINGPARSING_H +simdjson_inline bool value_iterator::is_valid() const noexcept { + return _json_iter != nullptr; +} -namespace simdjson { -namespace westmere { -namespace { +simdjson_inline simdjson_result value_iterator::type() const noexcept { + switch (*peek_start()) { + case '{': + return json_type::object; + case '[': + return json_type::array; + case '"': + return json_type::string; + case 'n': + return json_type::null; + case 't': case 'f': + return json_type::boolean; + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return json_type::number; + default: + return TAPE_ERROR; + } +} -using namespace simd; +simdjson_inline token_position value_iterator::start_position() const noexcept { + return _start_position; +} -// Holds backslashes and quotes locations. -struct backslash_and_quote { -public: - static constexpr uint32_t BYTES_PROCESSED = 32; - simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); +simdjson_inline token_position value_iterator::position() const noexcept { + return _json_iter->position(); +} - simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } - simdjson_inline bool has_backslash() { return bs_bits != 0; } - simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } - simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } +simdjson_inline token_position value_iterator::end_position() const noexcept { + return _json_iter->end_position(); +} - uint32_t bs_bits; - uint32_t quote_bits; -}; // struct backslash_and_quote +simdjson_inline token_position value_iterator::last_position() const noexcept { + return _json_iter->last_position(); +} -simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { - // this can read up to 31 bytes beyond the buffer size, but we require - // SIMDJSON_PADDING of padding - static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); - simd8 v0(src); - simd8 v1(src + 16); - v0.store(dst); - v1.store(dst + 16); - uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); - return { - uint32_t(bs_and_quote), // bs_bits - uint32_t(bs_and_quote >> 32) // quote_bits - }; +simdjson_inline error_code value_iterator::report_error(error_code error, const char *message) noexcept { + return _json_iter->report_error(error, message); } -} // unnamed namespace -} // namespace westmere +} // namespace ondemand +} // namespace ppc64 } // namespace simdjson -#endif // SIMDJSON_WESTMERE_STRINGPARSING_H -/* end file include/simdjson/westmere/stringparsing.h */ -/* begin file include/simdjson/westmere/numberparsing.h */ -#ifndef SIMDJSON_WESTMERE_NUMBERPARSING_H -#define SIMDJSON_WESTMERE_NUMBERPARSING_H - namespace simdjson { -namespace westmere { -namespace numberparsing { -/** @private */ -static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { - // this actually computes *16* values so we are being wasteful. - const __m128i ascii0 = _mm_set1_epi8('0'); - const __m128i mul_1_10 = - _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); - const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); - const __m128i mul_1_10000 = - _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); - const __m128i input = _mm_sub_epi8( - _mm_loadu_si128(reinterpret_cast(chars)), ascii0); - const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); - const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); - const __m128i t3 = _mm_packus_epi32(t2, t2); - const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); - return _mm_cvtsi128_si32( - t4); // only captures the sum of the first 8 digits, drop the rest -} +simdjson_inline simdjson_result::simdjson_result(ppc64::ondemand::value_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} -} // namespace numberparsing -} // namespace westmere } // namespace simdjson -#define SIMDJSON_SWAR_NUMBER_PARSING 1 - -/* begin file include/simdjson/generic/numberparsing.h */ -#include +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/value_iterator-inl.h for ppc64 */ +/* end file simdjson/generic/ondemand/amalgamated.h for ppc64 */ +/* including simdjson/ppc64/end.h: #include "simdjson/ppc64/end.h" */ +/* begin file simdjson/ppc64/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/ppc64/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#undef SIMDJSON_SKIP_BACKSLASH_SHORT_CIRCUIT +/* undefining SIMDJSON_IMPLEMENTATION from "ppc64" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/ppc64/end.h */ + +#endif // SIMDJSON_PPC64_ONDEMAND_H +/* end file simdjson/ppc64/ondemand.h */ +#elif SIMDJSON_BUILTIN_IMPLEMENTATION_IS(westmere) +/* including simdjson/westmere/ondemand.h: #include "simdjson/westmere/ondemand.h" */ +/* begin file simdjson/westmere/ondemand.h */ +#ifndef SIMDJSON_WESTMERE_ONDEMAND_H +#define SIMDJSON_WESTMERE_ONDEMAND_H + +/* including simdjson/westmere/begin.h: #include "simdjson/westmere/begin.h" */ +/* begin file simdjson/westmere/begin.h */ +/* defining SIMDJSON_IMPLEMENTATION to "westmere" */ +#define SIMDJSON_IMPLEMENTATION westmere +/* including simdjson/westmere/base.h: #include "simdjson/westmere/base.h" */ +/* begin file simdjson/westmere/base.h */ +#ifndef SIMDJSON_WESTMERE_BASE_H +#define SIMDJSON_WESTMERE_BASE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE namespace simdjson { -namespace westmere { -/// @private -namespace numberparsing { - /** - * The type of a JSON number + * Implementation for Westmere (Intel SSE4.2). */ -enum class number_type { - floating_point_number=1, /// a binary64 number - signed_integer, /// a signed integer that fits in a 64-bit word using two's complement - unsigned_integer /// a positive integer larger or equal to 1<<63 -}; +namespace westmere { -#ifdef JSON_TEST_NUMBERS -#define INVALID_NUMBER(SRC) (found_invalid_number((SRC)), NUMBER_ERROR) -#define WRITE_INTEGER(VALUE, SRC, WRITER) (found_integer((VALUE), (SRC)), (WRITER).append_s64((VALUE))) -#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (found_unsigned_integer((VALUE), (SRC)), (WRITER).append_u64((VALUE))) -#define WRITE_DOUBLE(VALUE, SRC, WRITER) (found_float((VALUE), (SRC)), (WRITER).append_double((VALUE))) -#else -#define INVALID_NUMBER(SRC) (NUMBER_ERROR) -#define WRITE_INTEGER(VALUE, SRC, WRITER) (WRITER).append_s64((VALUE)) -#define WRITE_UNSIGNED(VALUE, SRC, WRITER) (WRITER).append_u64((VALUE)) -#define WRITE_DOUBLE(VALUE, SRC, WRITER) (WRITER).append_double((VALUE)) -#endif +class implementation; namespace { +namespace simd { -// Convert a mantissa, an exponent and a sign bit into an ieee64 double. -// The real_exponent needs to be in [0, 2046] (technically real_exponent = 2047 would be acceptable). -// The mantissa should be in [0,1<<53). The bit at index (1ULL << 52) while be zeroed. -simdjson_inline double to_double(uint64_t mantissa, uint64_t real_exponent, bool negative) { - double d; - mantissa &= ~(1ULL << 52); - mantissa |= real_exponent << 52; - mantissa |= ((static_cast(negative)) << 63); - std::memcpy(&d, &mantissa, sizeof(d)); - return d; -} - -// Attempts to compute i * 10^(power) exactly; and if "negative" is -// true, negate the result. -// This function will only work in some cases, when it does not work, success is -// set to false. This should work *most of the time* (like 99% of the time). -// We assume that power is in the [smallest_power, -// largest_power] interval: the caller is responsible for this check. -simdjson_inline bool compute_float_64(int64_t power, uint64_t i, bool negative, double &d) { - // we start with a fast path - // It was described in - // Clinger WD. How to read floating point numbers accurately. - // ACM SIGPLAN Notices. 1990 -#ifndef FLT_EVAL_METHOD -#error "FLT_EVAL_METHOD should be defined, please include cfloat." -#endif -#if (FLT_EVAL_METHOD != 1) && (FLT_EVAL_METHOD != 0) - // We cannot be certain that x/y is rounded to nearest. - if (0 <= power && power <= 22 && i <= 9007199254740991) -#else - if (-22 <= power && power <= 22 && i <= 9007199254740991) -#endif - { - // convert the integer into a double. This is lossless since - // 0 <= i <= 2^53 - 1. - d = double(i); - // - // The general idea is as follows. - // If 0 <= s < 2^53 and if 10^0 <= p <= 10^22 then - // 1) Both s and p can be represented exactly as 64-bit floating-point - // values - // (binary64). - // 2) Because s and p can be represented exactly as floating-point values, - // then s * p - // and s / p will produce correctly rounded values. - // - if (power < 0) { - d = d / simdjson::internal::power_of_ten[-power]; - } else { - d = d * simdjson::internal::power_of_ten[power]; - } - if (negative) { - d = -d; - } - return true; - } - // When 22 < power && power < 22 + 16, we could - // hope for another, secondary fast path. It was - // described by David M. Gay in "Correctly rounded - // binary-decimal and decimal-binary conversions." (1990) - // If you need to compute i * 10^(22 + x) for x < 16, - // first compute i * 10^x, if you know that result is exact - // (e.g., when i * 10^x < 2^53), - // then you can still proceed and do (i * 10^x) * 10^22. - // Is this worth your time? - // You need 22 < power *and* power < 22 + 16 *and* (i * 10^(x-22) < 2^53) - // for this second fast path to work. - // If you you have 22 < power *and* power < 22 + 16, and then you - // optimistically compute "i * 10^(x-22)", there is still a chance that you - // have wasted your time if i * 10^(x-22) >= 2^53. It makes the use cases of - // this optimization maybe less common than we would like. Source: - // http://www.exploringbinary.com/fast-path-decimal-to-floating-point-conversion/ - // also used in RapidJSON: https://rapidjson.org/strtod_8h_source.html +template struct simd8; +template struct simd8x64; - // The fast path has now failed, so we are failing back on the slower path. +} // namespace simd +} // unnamed namespace - // In the slow path, we need to adjust i so that it is > 1<<63 which is always - // possible, except if i == 0, so we handle i == 0 separately. - if(i == 0) { - d = negative ? -0.0 : 0.0; - return true; - } +} // namespace westmere +} // namespace simdjson +#endif // SIMDJSON_WESTMERE_BASE_H +/* end file simdjson/westmere/base.h */ +/* including simdjson/westmere/intrinsics.h: #include "simdjson/westmere/intrinsics.h" */ +/* begin file simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H - // The exponent is 1024 + 63 + power - // + floor(log(5**power)/log(2)). - // The 1024 comes from the ieee64 standard. - // The 63 comes from the fact that we use a 64-bit word. - // - // Computing floor(log(5**power)/log(2)) could be - // slow. Instead we use a fast function. - // - // For power in (-400,350), we have that - // (((152170 + 65536) * power ) >> 16); - // is equal to - // floor(log(5**power)/log(2)) + power when power >= 0 - // and it is equal to - // ceil(log(5**-power)/log(2)) + power when power < 0 - // - // The 65536 is (1<<16) and corresponds to - // (65536 * power) >> 16 ---> power - // - // ((152170 * power ) >> 16) is equal to - // floor(log(5**power)/log(2)) - // - // Note that this is not magic: 152170/(1<<16) is - // approximatively equal to log(5)/log(2). - // The 1<<16 value is a power of two; we could use a - // larger power of 2 if we wanted to. - // - int64_t exponent = (((152170 + 65536) * power) >> 16) + 1024 + 63; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang +#else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO - // We want the most significant bit of i to be 1. Shift if needed. - int lz = leading_zeroes(i); - i <<= lz; +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 +#endif - // We are going to need to do some 64-bit arithmetic to get a precise product. - // We use a table lookup approach. - // It is safe because - // power >= smallest_power - // and power <= largest_power - // We recover the mantissa of the power, it has a leading 1. It is always - // rounded down. - // - // We want the most significant 64 bits of the product. We know - // this will be non-zero because the most significant bit of i is - // 1. - const uint32_t index = 2 * uint32_t(power - simdjson::internal::smallest_power); - // Optimization: It may be that materializing the index as a variable might confuse some compilers and prevent effective complex-addressing loads. (Done for code clarity.) - // - // The full_multiplication function computes the 128-bit product of two 64-bit words - // with a returned value of type value128 with a "low component" corresponding to the - // 64-bit least significant bits of the product and with a "high component" corresponding - // to the 64-bit most significant bits of the product. - simdjson::internal::value128 firstproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index]); - // Both i and power_of_five_128[index] have their most significant bit set to 1 which - // implies that the either the most or the second most significant bit of the product - // is 1. We pack values in this manner for efficiency reasons: it maximizes the use - // we make of the product. It also makes it easy to reason about the product: there - // is 0 or 1 leading zero in the product. +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); - // Unless the least significant 9 bits of the high (64-bit) part of the full - // product are all 1s, then we know that the most significant 55 bits are - // exact and no further work is needed. Having 55 bits is necessary because - // we need 53 bits for the mantissa but we have to have one rounding bit and - // we can waste a bit if the most significant bit of the product is zero. - if((firstproduct.high & 0x1FF) == 0x1FF) { - // We want to compute i * 5^q, but only care about the top 55 bits at most. - // Consider the scenario where q>=0. Then 5^q may not fit in 64-bits. Doing - // the full computation is wasteful. So we do what is called a "truncated - // multiplication". - // We take the most significant 64-bits, and we put them in - // power_of_five_128[index]. Usually, that's good enough to approximate i * 5^q - // to the desired approximation using one multiplication. Sometimes it does not suffice. - // Then we store the next most significant 64 bits in power_of_five_128[index + 1], and - // then we get a better approximation to i * 5^q. In very rare cases, even that - // will not suffice, though it is seemingly very hard to find such a scenario. - // - // That's for when q>=0. The logic for q<0 is somewhat similar but it is somewhat - // more complicated. - // - // There is an extra layer of complexity in that we need more than 55 bits of - // accuracy in the round-to-even scenario. - // - // The full_multiplication function computes the 128-bit product of two 64-bit words - // with a returned value of type value128 with a "low component" corresponding to the - // 64-bit least significant bits of the product and with a "high component" corresponding - // to the 64-bit most significant bits of the product. - simdjson::internal::value128 secondproduct = jsoncharutils::full_multiplication(i, simdjson::internal::power_of_five_128[index + 1]); - firstproduct.low += secondproduct.high; - if(secondproduct.high > firstproduct.low) { firstproduct.high++; } - // At this point, we might need to add at most one to firstproduct, but this - // can only change the value of firstproduct.high if firstproduct.low is maximal. - if(simdjson_unlikely(firstproduct.low == 0xFFFFFFFFFFFFFFFF)) { - // This is very unlikely, but if so, we need to do much more work! - return false; - } - } - uint64_t lower = firstproduct.low; - uint64_t upper = firstproduct.high; - // The final mantissa should be 53 bits with a leading 1. - // We shift it so that it occupies 54 bits with a leading 1. - /////// - uint64_t upperbit = upper >> 63; - uint64_t mantissa = upper >> (upperbit + 9); - lz += int(1 ^ upperbit); +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file simdjson/westmere/intrinsics.h */ - // Here we have mantissa < (1<<54). - int64_t real_exponent = exponent - lz; - if (simdjson_unlikely(real_exponent <= 0)) { // we have a subnormal? - // Here have that real_exponent <= 0 so -real_exponent >= 0 - if(-real_exponent + 1 >= 64) { // if we have more than 64 bits below the minimum exponent, you have a zero for sure. - d = negative ? -0.0 : 0.0; - return true; - } - // next line is safe because -real_exponent + 1 < 0 - mantissa >>= -real_exponent + 1; - // Thankfully, we can't have both "round-to-even" and subnormals because - // "round-to-even" only occurs for powers close to 0. - mantissa += (mantissa & 1); // round up - mantissa >>= 1; - // There is a weird scenario where we don't have a subnormal but just. - // Suppose we start with 2.2250738585072013e-308, we end up - // with 0x3fffffffffffff x 2^-1023-53 which is technically subnormal - // whereas 0x40000000000000 x 2^-1023-53 is normal. Now, we need to round - // up 0x3fffffffffffff x 2^-1023-53 and once we do, we are no longer - // subnormal, but we can only know this after rounding. - // So we only declare a subnormal if we are smaller than the threshold. - real_exponent = (mantissa < (uint64_t(1) << 52)) ? 0 : 1; - d = to_double(mantissa, real_exponent, negative); - return true; - } - // We have to round to even. The "to even" part - // is only a problem when we are right in between two floats - // which we guard against. - // If we have lots of trailing zeros, we may fall right between two - // floating-point values. - // - // The round-to-even cases take the form of a number 2m+1 which is in (2^53,2^54] - // times a power of two. That is, it is right between a number with binary significand - // m and another number with binary significand m+1; and it must be the case - // that it cannot be represented by a float itself. - // - // We must have that w * 10 ^q == (2m+1) * 2^p for some power of two 2^p. - // Recall that 10^q = 5^q * 2^q. - // When q >= 0, we must have that (2m+1) is divible by 5^q, so 5^q <= 2^54. We have that - // 5^23 <= 2^54 and it is the last power of five to qualify, so q <= 23. - // When q<0, we have w >= (2m+1) x 5^{-q}. We must have that w<2^{64} so - // (2m+1) x 5^{-q} < 2^{64}. We have that 2m+1>2^{53}. Hence, we must have - // 2^{53} x 5^{-q} < 2^{64}. - // Hence we have 5^{-q} < 2^{11}$ or q>= -4. - // - // We require lower <= 1 and not lower == 0 because we could not prove that - // that lower == 0 is implied; but we could prove that lower <= 1 is a necessary and sufficient test. - if (simdjson_unlikely((lower <= 1) && (power >= -4) && (power <= 23) && ((mantissa & 3) == 1))) { - if((mantissa << (upperbit + 64 - 53 - 2)) == upper) { - mantissa &= ~1; // flip it so that we do not round up - } - } +#if !SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +SIMDJSON_TARGET_REGION("sse4.2,pclmul,popcnt") +#endif - mantissa += mantissa & 1; - mantissa >>= 1; +/* including simdjson/westmere/bitmanipulation.h: #include "simdjson/westmere/bitmanipulation.h" */ +/* begin file simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H - // Here we have mantissa < (1<<53), unless there was an overflow - if (mantissa >= (1ULL << 53)) { - ////////// - // This will happen when parsing values such as 7.2057594037927933e+16 - //////// - mantissa = (1ULL << 52); - real_exponent++; - } - mantissa &= ~(1ULL << 52); - // we have to check that real_exponent is in range, otherwise we bail out - if (simdjson_unlikely(real_exponent > 2046)) { - // We have an infinite value!!! We could actually throw an error here if we could. - return false; - } - d = to_double(mantissa, real_exponent, negative); - return true; -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -// We call a fallback floating-point parser that might be slow. Note -// it will accept JSON numbers, but the JSON spec. is more restrictive so -// before you call parse_float_fallback, you need to have validated the input -// string with the JSON grammar. -// It will return an error (false) if the parsed number is infinite. -// The string parsing itself always succeeds. We know that there is at least -// one digit. -static bool parse_float_fallback(const uint8_t *ptr, double *outDouble) { - *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr)); - // We do not accept infinite values. +namespace simdjson { +namespace westmere { +namespace { - // Detecting finite values in a portable manner is ridiculously hard, ideally - // we would want to do: - // return !std::isfinite(*outDouble); - // but that mysteriously fails under legacy/old libc++ libraries, see - // https://github.com/simdjson/simdjson/issues/1286 - // - // Therefore, fall back to this solution (the extra parens are there - // to handle that max may be a macro on windows). - return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO } -static bool parse_float_fallback(const uint8_t *ptr, const uint8_t *end_ptr, double *outDouble) { - *outDouble = simdjson::internal::from_chars(reinterpret_cast(ptr), reinterpret_cast(end_ptr)); - // We do not accept infinite values. +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); +} - // Detecting finite values in a portable manner is ridiculously hard, ideally - // we would want to do: - // return !std::isfinite(*outDouble); - // but that mysteriously fails under legacy/old libc++ libraries, see - // https://github.com/simdjson/simdjson/issues/1286 - // - // Therefore, fall back to this solution (the extra parens are there - // to handle that max may be a macro on windows). - return !(*outDouble > (std::numeric_limits::max)() || *outDouble < std::numeric_limits::lowest()); +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO } -// check quickly whether the next 8 chars are made of digits -// at a glance, it looks better than Mula's -// http://0x80.pl/articles/swar-digits-validate.html -simdjson_inline bool is_made_of_eight_digits_fast(const uint8_t *chars) { - uint64_t val; - // this can read up to 7 bytes beyond the buffer size, but we require - // SIMDJSON_PADDING of padding - static_assert(7 <= SIMDJSON_PADDING, "SIMDJSON_PADDING must be bigger than 7"); - std::memcpy(&val, chars, 8); - // a branchy method might be faster: - // return (( val & 0xF0F0F0F0F0F0F0F0 ) == 0x3030303030303030) - // && (( (val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0 ) == - // 0x3030303030303030); - return (((val & 0xF0F0F0F0F0F0F0F0) | - (((val + 0x0606060606060606) & 0xF0F0F0F0F0F0F0F0) >> 4)) == - 0x3333333333333333); +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); } +#endif -template -SIMDJSON_NO_SANITIZE_UNDEFINED // We deliberately allow overflow here and check later -simdjson_inline bool parse_digit(const uint8_t c, I &i) { - const uint8_t digit = static_cast(c - '0'); - if (digit > 9) { - return false; - } - // PERF NOTE: multiplication by 10 is cheaper than arbitrary integer multiplication - i = 10 * i + digit; // might overflow, we will handle the overflow later - return true; +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif } -simdjson_inline error_code parse_decimal_after_separator(simdjson_unused const uint8_t *const src, const uint8_t *&p, uint64_t &i, int64_t &exponent) { - // we continue with the fiction that we have an integer. If the - // floating point number is representable as x * 10^z for some integer - // z that fits in 53 bits, then we will be able to convert back the - // the integer into a float in a lossless manner. - const uint8_t *const first_after_period = p; +} // unnamed namespace +} // namespace westmere +} // namespace simdjson -#ifdef SIMDJSON_SWAR_NUMBER_PARSING -#if SIMDJSON_SWAR_NUMBER_PARSING - // this helps if we have lots of decimals! - // this turns out to be frequent enough. - if (is_made_of_eight_digits_fast(p)) { - i = i * 100000000 + parse_eight_digits_unrolled(p); - p += 8; - } -#endif // SIMDJSON_SWAR_NUMBER_PARSING -#endif // #ifdef SIMDJSON_SWAR_NUMBER_PARSING - // Unrolling the first digit makes a small difference on some implementations (e.g. westmere) - if (parse_digit(*p, i)) { ++p; } - while (parse_digit(*p, i)) { p++; } - exponent = first_after_period - p; - // Decimal without digits (123.) is illegal - if (exponent == 0) { - return INVALID_NUMBER(src); - } - return SUCCESS; +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file simdjson/westmere/bitmanipulation.h */ +/* including simdjson/westmere/bitmask.h: #include "simdjson/westmere/bitmask.h" */ +/* begin file simdjson/westmere/bitmask.h */ +#ifndef SIMDJSON_WESTMERE_BITMASK_H +#define SIMDJSON_WESTMERE_BITMASK_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace { + +// +// Perform a "cumulative bitwise xor," flipping bits each time a 1 is encountered. +// +// For example, prefix_xor(00100100) == 00011100 +// +simdjson_inline uint64_t prefix_xor(const uint64_t bitmask) { + // There should be no such thing with a processing supporting avx2 + // but not clmul. + __m128i all_ones = _mm_set1_epi8('\xFF'); + __m128i result = _mm_clmulepi64_si128(_mm_set_epi64x(0ULL, bitmask), all_ones, 0); + return _mm_cvtsi128_si64(result); } -simdjson_inline error_code parse_exponent(simdjson_unused const uint8_t *const src, const uint8_t *&p, int64_t &exponent) { - // Exp Sign: -123.456e[-]78 - bool neg_exp = ('-' == *p); - if (neg_exp || '+' == *p) { p++; } // Skip + as well +} // unnamed namespace +} // namespace westmere +} // namespace simdjson - // Exponent: -123.456e-[78] - auto start_exp = p; - int64_t exp_number = 0; - while (parse_digit(*p, exp_number)) { ++p; } - // It is possible for parse_digit to overflow. - // In particular, it could overflow to INT64_MIN, and we cannot do - INT64_MIN. - // Thus we *must* check for possible overflow before we negate exp_number. +#endif // SIMDJSON_WESTMERE_BITMASK_H +/* end file simdjson/westmere/bitmask.h */ +/* including simdjson/westmere/numberparsing_defs.h: #include "simdjson/westmere/numberparsing_defs.h" */ +/* begin file simdjson/westmere/numberparsing_defs.h */ +#ifndef SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H +#define SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H - // Performance notes: it may seem like combining the two "simdjson_unlikely checks" below into - // a single simdjson_unlikely path would be faster. The reasoning is sound, but the compiler may - // not oblige and may, in fact, generate two distinct paths in any case. It might be - // possible to do uint64_t(p - start_exp - 1) >= 18 but it could end up trading off - // instructions for a simdjson_likely branch, an unconclusive gain. +/* including simdjson/westmere/base.h: #include "simdjson/westmere/base.h" */ +/* begin file simdjson/westmere/base.h */ +#ifndef SIMDJSON_WESTMERE_BASE_H +#define SIMDJSON_WESTMERE_BASE_H - // If there were no digits, it's an error. - if (simdjson_unlikely(p == start_exp)) { - return INVALID_NUMBER(src); - } - // We have a valid positive exponent in exp_number at this point, except that - // it may have overflowed. +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // If there were more than 18 digits, we may have overflowed the integer. We have to do - // something!!!! - if (simdjson_unlikely(p > start_exp+18)) { - // Skip leading zeroes: 1e000000000000000000001 is technically valid and doesn't overflow - while (*start_exp == '0') { start_exp++; } - // 19 digits could overflow int64_t and is kind of absurd anyway. We don't - // support exponents smaller than -999,999,999,999,999,999 and bigger - // than 999,999,999,999,999,999. - // We can truncate. - // Note that 999999999999999999 is assuredly too large. The maximal ieee64 value before - // infinity is ~1.8e308. The smallest subnormal is ~5e-324. So, actually, we could - // truncate at 324. - // Note that there is no reason to fail per se at this point in time. - // E.g., 0e999999999999999999999 is a fine number. - if (p > start_exp+18) { exp_number = 999999999999999999; } - } - // At this point, we know that exp_number is a sane, positive, signed integer. - // It is <= 999,999,999,999,999,999. As long as 'exponent' is in - // [-8223372036854775808, 8223372036854775808], we won't overflow. Because 'exponent' - // is bounded in magnitude by the size of the JSON input, we are fine in this universe. - // To sum it up: the next line should never overflow. - exponent += (neg_exp ? -exp_number : exp_number); - return SUCCESS; -} +// The constructor may be executed on any host, so we take care not to use SIMDJSON_TARGET_WESTMERE +namespace simdjson { +/** + * Implementation for Westmere (Intel SSE4.2). + */ +namespace westmere { -simdjson_inline size_t significant_digits(const uint8_t * start_digits, size_t digit_count) { - // It is possible that the integer had an overflow. - // We have to handle the case where we have 0.0000somenumber. - const uint8_t *start = start_digits; - while ((*start == '0') || (*start == '.')) { ++start; } - // we over-decrement by one when there is a '.' - return digit_count - size_t(start - start_digits); -} +class implementation; -} // unnamed namespace +namespace { +namespace simd { -/** @private */ -template -error_code slow_float_parsing(simdjson_unused const uint8_t * src, W writer) { - double d; - if (parse_float_fallback(src, &d)) { - writer.append_double(d); - return SUCCESS; - } - return INVALID_NUMBER(src); -} +template struct simd8; +template struct simd8x64; -/** @private */ -template -simdjson_inline error_code write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer) { - // If we frequently had to deal with long strings of digits, - // we could extend our code by using a 128-bit integer instead - // of a 64-bit integer. However, this is uncommon in practice. - // - // 9999999999999999999 < 2**64 so we can accommodate 19 digits. - // If we have a decimal separator, then digit_count - 1 is the number of digits, but we - // may not have a decimal separator! - if (simdjson_unlikely(digit_count > 19 && significant_digits(start_digits, digit_count) > 19)) { - // Ok, chances are good that we had an overflow! - // this is almost never going to get called!!! - // we start anew, going slowly!!! - // This will happen in the following examples: - // 10000000000000000000000000000000000000000000e+308 - // 3.1415926535897932384626433832795028841971693993751 - // - // NOTE: This makes a *copy* of the writer and passes it to slow_float_parsing. This happens - // because slow_float_parsing is a non-inlined function. If we passed our writer reference to - // it, it would force it to be stored in memory, preventing the compiler from picking it apart - // and putting into registers. i.e. if we pass it as reference, it gets slow. - // This is what forces the skip_double, as well. - error_code error = slow_float_parsing(src, writer); - writer.skip_double(); - return error; - } - // NOTE: it's weird that the simdjson_unlikely() only wraps half the if, but it seems to get slower any other - // way we've tried: https://github.com/simdjson/simdjson/pull/990#discussion_r448497331 - // To future reader: we'd love if someone found a better way, or at least could explain this result! - if (simdjson_unlikely(exponent < simdjson::internal::smallest_power) || (exponent > simdjson::internal::largest_power)) { - // - // Important: smallest_power is such that it leads to a zero value. - // Observe that 18446744073709551615e-343 == 0, i.e. (2**64 - 1) e -343 is zero - // so something x 10^-343 goes to zero, but not so with something x 10^-342. - static_assert(simdjson::internal::smallest_power <= -342, "smallest_power is not small enough"); - // - if((exponent < simdjson::internal::smallest_power) || (i == 0)) { - // E.g. Parse "-0.0e-999" into the same value as "-0.0". See https://en.wikipedia.org/wiki/Signed_zero - WRITE_DOUBLE(negative ? -0.0 : 0.0, src, writer); - return SUCCESS; - } else { // (exponent > largest_power) and (i != 0) - // We have, for sure, an infinite value and simdjson refuses to parse infinite values. - return INVALID_NUMBER(src); - } - } - double d; - if (!compute_float_64(exponent, i, negative, d)) { - // we are almost never going to get here. - if (!parse_float_fallback(src, &d)) { return INVALID_NUMBER(src); } - } - WRITE_DOUBLE(d, src, writer); - return SUCCESS; -} +} // namespace simd +} // unnamed namespace -// for performance analysis, it is sometimes useful to skip parsing -#ifdef SIMDJSON_SKIPNUMBERPARSING +} // namespace westmere +} // namespace simdjson -template -simdjson_inline error_code parse_number(const uint8_t *const, W &writer) { - writer.append_s64(0); // always write zero - return SUCCESS; // always succeeds -} +#endif // SIMDJSON_WESTMERE_BASE_H +/* end file simdjson/westmere/base.h */ +/* including simdjson/westmere/intrinsics.h: #include "simdjson/westmere/intrinsics.h" */ +/* begin file simdjson/westmere/intrinsics.h */ +#ifndef SIMDJSON_WESTMERE_INTRINSICS_H +#define SIMDJSON_WESTMERE_INTRINSICS_H -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * const src) noexcept { return 0; } -simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { return false; } -simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { return false; } -simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { return number_type::signed_integer; } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if SIMDJSON_VISUAL_STUDIO +// under clang within visual studio, this will include +#include // visual studio or clang #else +#include // elsewhere +#endif // SIMDJSON_VISUAL_STUDIO -// parse the number at src -// define JSON_TEST_NUMBERS for unit testing -// -// It is assumed that the number is followed by a structural ({,},],[) character -// or a white space character. If that is not the case (e.g., when the JSON -// document is made of a single number), then it is necessary to copy the -// content and append a space before calling this function. -// -// Our objective is accurate parsing (ULP of 0) at high speed. -template -simdjson_inline error_code parse_number(const uint8_t *const src, W &writer) { - // - // Check for minus sign - // - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); +#if SIMDJSON_CLANG_VISUAL_STUDIO +/** + * You are not supposed, normally, to include these + * headers directly. Instead you should either include intrin.h + * or x86intrin.h. However, when compiling with clang + * under Windows (i.e., when _MSC_VER is set), these headers + * only get included *if* the corresponding features are detected + * from macros: + */ +#include // for _mm_alignr_epi8 +#include // for _mm_clmulepi64_si128 +#endif - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } +static_assert(sizeof(__m128i) <= simdjson::SIMDJSON_PADDING, "insufficient padding for westmere"); - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - if (digit_count == 0 || ('0' == *start_digits && digit_count > 1)) { return INVALID_NUMBER(src); } +#endif // SIMDJSON_WESTMERE_INTRINSICS_H +/* end file simdjson/westmere/intrinsics.h */ - // - // Handle floats if there is a . or e (or both) - // - int64_t exponent = 0; - bool is_float = false; - if ('.' == *p) { - is_float = true; - ++p; - SIMDJSON_TRY( parse_decimal_after_separator(src, p, i, exponent) ); - digit_count = int(p - start_digits); // used later to guard against overflows - } - if (('e' == *p) || ('E' == *p)) { - is_float = true; - ++p; - SIMDJSON_TRY( parse_exponent(src, p, exponent) ); - } - if (is_float) { - const bool dirty_end = jsoncharutils::is_not_structural_or_whitespace(*p); - SIMDJSON_TRY( write_float(src, negative, i, start_digits, digit_count, exponent, writer) ); - if (dirty_end) { return INVALID_NUMBER(src); } - return SUCCESS; - } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/numberparsing_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // The longest negative 64-bit number is 19 digits. - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - size_t longest_digit_count = negative ? 19 : 20; - if (digit_count > longest_digit_count) { return INVALID_NUMBER(src); } - if (digit_count == longest_digit_count) { - if (negative) { - // Anything negative above INT64_MAX+1 is invalid - if (i > uint64_t(INT64_MAX)+1) { return INVALID_NUMBER(src); } - WRITE_INTEGER(~i+1, src, writer); - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } - return SUCCESS; - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - } else if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INVALID_NUMBER(src); } - } +namespace simdjson { +namespace westmere { +namespace numberparsing { - // Write unsigned if it doesn't fit in a signed integer. - if (i > uint64_t(INT64_MAX)) { - WRITE_UNSIGNED(i, src, writer); - } else { - WRITE_INTEGER(negative ? (~i+1) : i, src, writer); - } - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return INVALID_NUMBER(src); } - return SUCCESS; +/** @private */ +static simdjson_inline uint32_t parse_eight_digits_unrolled(const uint8_t *chars) { + // this actually computes *16* values so we are being wasteful. + const __m128i ascii0 = _mm_set1_epi8('0'); + const __m128i mul_1_10 = + _mm_setr_epi8(10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1); + const __m128i mul_1_100 = _mm_setr_epi16(100, 1, 100, 1, 100, 1, 100, 1); + const __m128i mul_1_10000 = + _mm_setr_epi16(10000, 1, 10000, 1, 10000, 1, 10000, 1); + const __m128i input = _mm_sub_epi8( + _mm_loadu_si128(reinterpret_cast(chars)), ascii0); + const __m128i t1 = _mm_maddubs_epi16(input, mul_1_10); + const __m128i t2 = _mm_madd_epi16(t1, mul_1_100); + const __m128i t3 = _mm_packus_epi32(t2, t2); + const __m128i t4 = _mm_madd_epi16(t3, mul_1_10000); + return _mm_cvtsi128_si32( + t4); // only captures the sum of the first 8 digits, drop the rest } -// Inlineable functions +/** @private */ +simdjson_inline internal::value128 full_multiplication(uint64_t value1, uint64_t value2) { + internal::value128 answer; +#if SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS +#ifdef _M_ARM64 + // ARM64 has native support for 64-bit multiplications, no need to emultate + answer.high = __umulh(value1, value2); + answer.low = value1 * value2; +#else + answer.low = _umul128(value1, value2, &answer.high); // _umul128 not available on ARM64 +#endif // _M_ARM64 +#else // SIMDJSON_REGULAR_VISUAL_STUDIO || SIMDJSON_IS_32BITS + __uint128_t r = (static_cast<__uint128_t>(value1)) * value2; + answer.low = uint64_t(r); + answer.high = uint64_t(r >> 64); +#endif + return answer; +} + +} // namespace numberparsing +} // namespace westmere +} // namespace simdjson + +#define SIMDJSON_SWAR_NUMBER_PARSING 1 + +#endif // SIMDJSON_WESTMERE_NUMBERPARSING_DEFS_H +/* end file simdjson/westmere/numberparsing_defs.h */ +/* including simdjson/westmere/simd.h: #include "simdjson/westmere/simd.h" */ +/* begin file simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { namespace { +namespace simd { -// This table can be used to characterize the final character of an integer -// string. For JSON structural character and allowable white space characters, -// we return SUCCESS. For 'e', '.' and 'E', we return INCORRECT_TYPE. Otherwise -// we return NUMBER_ERROR. -// Optimization note: we could easily reduce the size of the table by half (to 128) -// at the cost of an extra branch. -// Optimization note: we want the values to use at most 8 bits (not, e.g., 32 bits): -static_assert(error_code(uint8_t(NUMBER_ERROR))== NUMBER_ERROR, "bad NUMBER_ERROR cast"); -static_assert(error_code(uint8_t(SUCCESS))== SUCCESS, "bad NUMBER_ERROR cast"); -static_assert(error_code(uint8_t(INCORRECT_TYPE))== INCORRECT_TYPE, "bad NUMBER_ERROR cast"); + template + struct base { + __m128i value; -const uint8_t integer_string_finisher[256] = { - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, - SUCCESS, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, - NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, INCORRECT_TYPE, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, SUCCESS, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, INCORRECT_TYPE, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, SUCCESS, NUMBER_ERROR, - SUCCESS, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, NUMBER_ERROR, - NUMBER_ERROR}; + // Zero constructor + simdjson_inline base() : value{__m128i()} {} + + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} + + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } -// Parse any number from 0 to 18,446,744,073,709,551,615 -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src) noexcept { - const uint8_t *p = src; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if (integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } - } + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} - return i; -} + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } + static const int SIZE = sizeof(base>::value); -// Parse any number from 0 to 18,446,744,073,709,551,615 -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_unsigned(const uint8_t * const src, const uint8_t * const src_end) noexcept { - const uint8_t *p = src; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while ((p != src_end) && parse_digit(*p, i)) { p++; } + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); + } + }; - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if ((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - if (src[0] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } - } + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} - return i; -} + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; -// Parse any number from 0 to 18,446,744,073,709,551,615 -simdjson_unused simdjson_inline simdjson_result parse_unsigned_in_string(const uint8_t * const src) noexcept { - const uint8_t *p = src + 1; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // The longest positive 64-bit number is 20 digits. - // We do it this way so we don't trigger this branch unless we must. - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > 20)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > 20)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if (*p != '"') { return NUMBER_ERROR; } + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} - if (digit_count == 20) { - // Positive overflow check: - // - A 20 digit number starting with 2-9 is overflow, because 18,446,744,073,709,551,615 is the - // biggest uint64_t. - // - A 20 digit number starting with 1 is overflow if it is less than INT64_MAX. - // If we got here, it's a 20 digit number starting with the digit "1". - // - If a 20 digit number starting with 1 overflowed (i*10+digit), the result will be smaller - // than 1,553,255,926,290,448,384. - // - That is smaller than the smallest possible 20-digit number the user could write: - // 10,000,000,000,000,000,000. - // - Therefore, if the number is positive and lower than that, it's overflow. - // - The value we are looking at is less than or equal to INT64_MAX. - // - // Note: we use src[1] and not src[0] because src[0] is the quote character in this - // instance. - if (src[1] != uint8_t('1') || i <= uint64_t(INT64_MAX)) { return INCORRECT_TYPE; } - } + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } - return i; -} + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t *src) noexcept { - // - // Check for minus sign - // - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while (parse_digit(*p, i)) { p++; } + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); + } - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if(integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; -} + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_integer(const uint8_t * const src, const uint8_t * const src_end) noexcept { - // - // Check for minus sign - // - if(src == src_end) { return NUMBER_ERROR; } - bool negative = (*src == '-'); - const uint8_t *p = src + uint8_t(negative); + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = p; - uint64_t i = 0; - while ((p != src_end) && parse_digit(*p, i)) { p++; } + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(p - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*p)) { - // return (*p == '.' || *p == 'e' || *p == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if((p != src_end) && integer_string_finisher[*p] != SUCCESS) { return error_code(integer_string_finisher[*p]); } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; -} + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; -// Parse any number from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 -simdjson_unused simdjson_inline simdjson_result parse_integer_in_string(const uint8_t *src) noexcept { - // - // Check for minus sign - // - bool negative = (*(src + 1) == '-'); - src += uint8_t(negative) + 1; + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } - // - // Parse the integer part. - // - // PERF NOTE: we don't use is_made_of_eight_digits_fast because large integers like 123456789 are rare - const uint8_t *const start_digits = src; - uint64_t i = 0; - while (parse_digit(*src, i)) { src++; } + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } - // If there were no digits, or if the integer starts with 0 and has more than one digit, it's an error. - // Optimization note: size_t is expected to be unsigned. - size_t digit_count = size_t(src - start_digits); - // We go from - // -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - // so we can never represent numbers that have more than 19 digits. - size_t longest_digit_count = 19; - // Optimization note: the compiler can probably merge - // ((digit_count == 0) || (digit_count > longest_digit_count)) - // into a single branch since digit_count is unsigned. - if ((digit_count == 0) || (digit_count > longest_digit_count)) { return INCORRECT_TYPE; } - // Here digit_count > 0. - if (('0' == *start_digits) && (digit_count > 1)) { return NUMBER_ERROR; } - // We can do the following... - // if (!jsoncharutils::is_structural_or_whitespace(*src)) { - // return (*src == '.' || *src == 'e' || *src == 'E') ? INCORRECT_TYPE : NUMBER_ERROR; - // } - // as a single table lookup: - if(*src != '"') { return NUMBER_ERROR; } - // Negative numbers have can go down to - INT64_MAX - 1 whereas positive numbers are limited to INT64_MAX. - // Performance note: This check is only needed when digit_count == longest_digit_count but it is - // so cheap that we might as well always make it. - if(i > uint64_t(INT64_MAX) + uint64_t(negative)) { return INCORRECT_TYPE; } - return negative ? (~i+1) : i; -} + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src) noexcept { - // - // Check for minus sign - // - bool negative = (*src == '-'); - src += uint8_t(negative); + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; + + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; + + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed + + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} + + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } + + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } + + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } + + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while (parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } - // - // Parse the decimal part. - // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely(*p == '.')) { - p++; - const uint8_t *start_decimal_digits = p; - if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while (parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); } - } else { - overflow = p-src > 19; - } + }; // struct simd8x64 - // - // Parse the exponent - // - if (*p == 'e' || *p == 'E') { - p++; - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; +} // namespace simd +} // unnamed namespace +} // namespace westmere +} // namespace simdjson - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while (parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file simdjson/westmere/simd.h */ +/* including simdjson/westmere/stringparsing_defs.h: #include "simdjson/westmere/stringparsing_defs.h" */ +/* begin file simdjson/westmere/stringparsing_defs.h */ +#ifndef SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H +#define SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H + +/* including simdjson/westmere/bitmanipulation.h: #include "simdjson/westmere/bitmanipulation.h" */ +/* begin file simdjson/westmere/bitmanipulation.h */ +#ifndef SIMDJSON_WESTMERE_BITMANIPULATION_H +#define SIMDJSON_WESTMERE_BITMANIPULATION_H - exponent += exp_neg ? 0-exp : exp; - } +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/intrinsics.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - if (jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } +namespace simdjson { +namespace westmere { +namespace { - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; +// We sometimes call trailing_zero on inputs that are zero, +// but the algorithms do not end up using the returned value. +// Sadly, sanitizers are not smart enough to figure it out. +SIMDJSON_NO_SANITIZE_UNDEFINED +// This function can be used safely even if not all bytes have been +// initialized. +// See issue https://github.com/simdjson/simdjson/issues/1965 +SIMDJSON_NO_SANITIZE_MEMORY +simdjson_inline int trailing_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long ret; + // Search the mask data from least significant bit (LSB) + // to the most significant bit (MSB) for a set bit (1). + _BitScanForward64(&ret, input_num); + return (int)ret; +#else // SIMDJSON_REGULAR_VISUAL_STUDIO + return __builtin_ctzll(input_num); +#endif // SIMDJSON_REGULAR_VISUAL_STUDIO +} - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), &d)) { - return NUMBER_ERROR; - } - return d; +/* result might be undefined when input_num is zero */ +simdjson_inline uint64_t clear_lowest_bit(uint64_t input_num) { + return input_num & (input_num-1); } -simdjson_unused simdjson_inline bool is_negative(const uint8_t * src) noexcept { - return (*src == '-'); +/* result might be undefined when input_num is zero */ +simdjson_inline int leading_zeroes(uint64_t input_num) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + unsigned long leading_zero = 0; + // Search the mask data from most significant bit (MSB) + // to least significant bit (LSB) for a set bit (1). + if (_BitScanReverse64(&leading_zero, input_num)) + return (int)(63 - leading_zero); + else + return 64; +#else + return __builtin_clzll(input_num); +#endif// SIMDJSON_REGULAR_VISUAL_STUDIO } -simdjson_unused simdjson_inline simdjson_result is_integer(const uint8_t * src) noexcept { - bool negative = (*src == '-'); - src += uint8_t(negative); - const uint8_t *p = src; - while(static_cast(*p - '0') <= 9) { p++; } - if ( p == src ) { return NUMBER_ERROR; } - if (jsoncharutils::is_structural_or_whitespace(*p)) { return true; } - return false; +#if SIMDJSON_REGULAR_VISUAL_STUDIO +simdjson_inline unsigned __int64 count_ones(uint64_t input_num) { + // note: we do not support legacy 32-bit Windows in this kernel + return __popcnt64(input_num);// Visual Studio wants two underscores +} +#else +simdjson_inline long long int count_ones(uint64_t input_num) { + return _popcnt64(input_num); } +#endif -simdjson_unused simdjson_inline simdjson_result get_number_type(const uint8_t * src) noexcept { - bool negative = (*src == '-'); - src += uint8_t(negative); - const uint8_t *p = src; - while(static_cast(*p - '0') <= 9) { p++; } - if ( p == src ) { return NUMBER_ERROR; } - if (jsoncharutils::is_structural_or_whitespace(*p)) { - // We have an integer. - // If the number is negative and valid, it must be a signed integer. - if(negative) { return number_type::signed_integer; } - // We want values larger or equal to 9223372036854775808 to be unsigned - // integers, and the other values to be signed integers. - int digit_count = int(p - src); - if(digit_count >= 19) { - const uint8_t * smaller_big_integer = reinterpret_cast("9223372036854775808"); - if((digit_count >= 20) || (memcmp(src, smaller_big_integer, 19) >= 0)) { - return number_type::unsigned_integer; - } - } - return number_type::signed_integer; - } - // Hopefully, we have 'e' or 'E' or '.'. - return number_type::floating_point_number; +simdjson_inline bool add_overflow(uint64_t value1, uint64_t value2, + uint64_t *result) { +#if SIMDJSON_REGULAR_VISUAL_STUDIO + return _addcarry_u64(0, value1, value2, + reinterpret_cast(result)); +#else + return __builtin_uaddll_overflow(value1, value2, + reinterpret_cast(result)); +#endif } -// Never read at src_end or beyond -simdjson_unused simdjson_inline simdjson_result parse_double(const uint8_t * src, const uint8_t * const src_end) noexcept { - if(src == src_end) { return NUMBER_ERROR; } - // - // Check for minus sign - // - bool negative = (*src == '-'); - src += uint8_t(negative); +} // unnamed namespace +} // namespace westmere +} // namespace simdjson - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - if(p == src_end) { return NUMBER_ERROR; } - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while ((p != src_end) && parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } +#endif // SIMDJSON_WESTMERE_BITMANIPULATION_H +/* end file simdjson/westmere/bitmanipulation.h */ +/* including simdjson/westmere/simd.h: #include "simdjson/westmere/simd.h" */ +/* begin file simdjson/westmere/simd.h */ +#ifndef SIMDJSON_WESTMERE_SIMD_H +#define SIMDJSON_WESTMERE_SIMD_H - // - // Parse the decimal part. - // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely((p != src_end) && (*p == '.'))) { - p++; - const uint8_t *start_decimal_digits = p; - if ((p == src_end) || !parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while ((p != src_end) && parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/bitmanipulation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/simdprune_tables.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; - } - } else { - overflow = p-src > 19; - } +namespace simdjson { +namespace westmere { +namespace { +namespace simd { - // - // Parse the exponent - // - if ((p != src_end) && (*p == 'e' || *p == 'E')) { - p++; - if(p == src_end) { return NUMBER_ERROR; } - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; + template + struct base { + __m128i value; - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while ((p != src_end) && parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + // Zero constructor + simdjson_inline base() : value{__m128i()} {} - exponent += exp_neg ? 0-exp : exp; - } + // Conversion from SIMD register + simdjson_inline base(const __m128i _value) : value(_value) {} - if ((p != src_end) && jsoncharutils::is_not_structural_or_whitespace(*p)) { return NUMBER_ERROR; } + // Conversion to SIMD register + simdjson_inline operator const __m128i&() const { return this->value; } + simdjson_inline operator __m128i&() { return this->value; } - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + // Bit operations + simdjson_inline Child operator|(const Child other) const { return _mm_or_si128(*this, other); } + simdjson_inline Child operator&(const Child other) const { return _mm_and_si128(*this, other); } + simdjson_inline Child operator^(const Child other) const { return _mm_xor_si128(*this, other); } + simdjson_inline Child bit_andnot(const Child other) const { return _mm_andnot_si128(other, *this); } + simdjson_inline Child& operator|=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast | other; return *this_cast; } + simdjson_inline Child& operator&=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast & other; return *this_cast; } + simdjson_inline Child& operator^=(const Child other) { auto this_cast = static_cast(this); *this_cast = *this_cast ^ other; return *this_cast; } + }; - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), src_end, &d)) { - return NUMBER_ERROR; - } - return d; -} + template> + struct base8: base> { + typedef uint16_t bitmask_t; + typedef uint32_t bitmask2_t; -simdjson_unused simdjson_inline simdjson_result parse_double_in_string(const uint8_t * src) noexcept { - // - // Check for minus sign - // - bool negative = (*(src + 1) == '-'); - src += uint8_t(negative) + 1; + simdjson_inline base8() : base>() {} + simdjson_inline base8(const __m128i _value) : base>(_value) {} - // - // Parse the integer part. - // - uint64_t i = 0; - const uint8_t *p = src; - p += parse_digit(*p, i); - bool leading_zero = (i == 0); - while (parse_digit(*p, i)) { p++; } - // no integer digits, or 0123 (zero must be solo) - if ( p == src ) { return INCORRECT_TYPE; } - if ( (leading_zero && p != src+1)) { return NUMBER_ERROR; } + friend simdjson_inline Mask operator==(const simd8 lhs, const simd8 rhs) { return _mm_cmpeq_epi8(lhs, rhs); } - // - // Parse the decimal part. - // - int64_t exponent = 0; - bool overflow; - if (simdjson_likely(*p == '.')) { - p++; - const uint8_t *start_decimal_digits = p; - if (!parse_digit(*p, i)) { return NUMBER_ERROR; } // no decimal digits - p++; - while (parse_digit(*p, i)) { p++; } - exponent = -(p - start_decimal_digits); + static const int SIZE = sizeof(base>::value); - // Overflow check. More than 19 digits (minus the decimal) may be overflow. - overflow = p-src-1 > 19; - if (simdjson_unlikely(overflow && leading_zero)) { - // Skip leading 0.00000 and see if it still overflows - const uint8_t *start_digits = src + 2; - while (*start_digits == '0') { start_digits++; } - overflow = start_digits-src > 19; + template + simdjson_inline simd8 prev(const simd8 prev_chunk) const { + return _mm_alignr_epi8(*this, prev_chunk, 16 - N); } - } else { - overflow = p-src > 19; - } + }; - // - // Parse the exponent - // - if (*p == 'e' || *p == 'E') { - p++; - bool exp_neg = *p == '-'; - p += exp_neg || *p == '+'; + // SIMD byte mask type (returned by things like eq and gt) + template<> + struct simd8: base8 { + static simdjson_inline simd8 splat(bool _value) { return _mm_set1_epi8(uint8_t(-(!!_value))); } - uint64_t exp = 0; - const uint8_t *start_exp_digits = p; - while (parse_digit(*p, exp)) { p++; } - // no exp digits, or 20+ exp digits - if (p-start_exp_digits == 0 || p-start_exp_digits > 19) { return NUMBER_ERROR; } + simdjson_inline simd8() : base8() {} + simdjson_inline simd8(const __m128i _value) : base8(_value) {} + // Splat constructor + simdjson_inline simd8(bool _value) : base8(splat(_value)) {} - exponent += exp_neg ? 0-exp : exp; - } + simdjson_inline int to_bitmask() const { return _mm_movemask_epi8(*this); } + simdjson_inline bool any() const { return !_mm_testz_si128(*this, *this); } + simdjson_inline simd8 operator~() const { return *this ^ true; } + }; - if (*p != '"') { return NUMBER_ERROR; } + template + struct base8_numeric: base8 { + static simdjson_inline simd8 splat(T _value) { return _mm_set1_epi8(_value); } + static simdjson_inline simd8 zero() { return _mm_setzero_si128(); } + static simdjson_inline simd8 load(const T values[16]) { + return _mm_loadu_si128(reinterpret_cast(values)); + } + // Repeat 16 values as many times as necessary (usually for lookup tables) + static simdjson_inline simd8 repeat_16( + T v0, T v1, T v2, T v3, T v4, T v5, T v6, T v7, + T v8, T v9, T v10, T v11, T v12, T v13, T v14, T v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } - overflow = overflow || exponent < simdjson::internal::smallest_power || exponent > simdjson::internal::largest_power; + simdjson_inline base8_numeric() : base8() {} + simdjson_inline base8_numeric(const __m128i _value) : base8(_value) {} - // - // Assemble (or slow-parse) the float - // - double d; - if (simdjson_likely(!overflow)) { - if (compute_float_64(exponent, i, negative, d)) { return d; } - } - if (!parse_float_fallback(src - uint8_t(negative), &d)) { - return NUMBER_ERROR; - } - return d; -} + // Store to array + simdjson_inline void store(T dst[16]) const { return _mm_storeu_si128(reinterpret_cast<__m128i *>(dst), *this); } -} // unnamed namespace -#endif // SIMDJSON_SKIPNUMBERPARSING + // Override to distinguish from bool version + simdjson_inline simd8 operator~() const { return *this ^ 0xFFu; } -inline std::ostream& operator<<(std::ostream& out, number_type type) noexcept { - switch (type) { - case number_type::signed_integer: out << "integer in [-9223372036854775808,9223372036854775808)"; break; - case number_type::unsigned_integer: out << "unsigned integer in [9223372036854775808,18446744073709551616)"; break; - case number_type::floating_point_number: out << "floating-point number (binary64)"; break; - default: SIMDJSON_UNREACHABLE(); + // Addition/subtraction are the same for signed and unsigned + simdjson_inline simd8 operator+(const simd8 other) const { return _mm_add_epi8(*this, other); } + simdjson_inline simd8 operator-(const simd8 other) const { return _mm_sub_epi8(*this, other); } + simdjson_inline simd8& operator+=(const simd8 other) { *this = *this + other; return *static_cast*>(this); } + simdjson_inline simd8& operator-=(const simd8 other) { *this = *this - other; return *static_cast*>(this); } + + // Perform a lookup assuming the value is between 0 and 16 (undefined behavior for out of range values) + template + simdjson_inline simd8 lookup_16(simd8 lookup_table) const { + return _mm_shuffle_epi8(lookup_table, *this); + } + + // Copies to 'output" all bytes corresponding to a 0 in the mask (interpreted as a bitset). + // Passing a 0 value for mask would be equivalent to writing out every byte to output. + // Only the first 16 - count_ones(mask) bytes of the result are significant but 16 bytes + // get written. + // Design consideration: it seems like a function with the + // signature simd8 compress(uint32_t mask) would be + // sensible, but the AVX ISA makes this kind of approach difficult. + template + simdjson_inline void compress(uint16_t mask, L * output) const { + using internal::thintable_epi8; + using internal::BitsSetTable256mul2; + using internal::pshufb_combine_table; + // this particular implementation was inspired by work done by @animetosho + // we do it in two steps, first 8 bytes and then second 8 bytes + uint8_t mask1 = uint8_t(mask); // least significant 8 bits + uint8_t mask2 = uint8_t(mask >> 8); // most significant 8 bits + // next line just loads the 64-bit values thintable_epi8[mask1] and + // thintable_epi8[mask2] into a 128-bit register, using only + // two instructions on most compilers. + __m128i shufmask = _mm_set_epi64x(thintable_epi8[mask2], thintable_epi8[mask1]); + // we increment by 0x08 the second half of the mask + shufmask = + _mm_add_epi8(shufmask, _mm_set_epi32(0x08080808, 0x08080808, 0, 0)); + // this is the version "nearly pruned" + __m128i pruned = _mm_shuffle_epi8(*this, shufmask); + // we still need to put the two halves together. + // we compute the popcount of the first half: + int pop1 = BitsSetTable256mul2[mask1]; + // then load the corresponding mask, what it does is to write + // only the first pop1 bytes from the first 8 bytes, and then + // it fills in with the bytes from the second 8 bytes + some filling + // at the end. + __m128i compactmask = + _mm_loadu_si128(reinterpret_cast(pshufb_combine_table + pop1 * 8)); + __m128i answer = _mm_shuffle_epi8(pruned, compactmask); + _mm_storeu_si128(reinterpret_cast<__m128i *>(output), answer); + } + + template + simdjson_inline simd8 lookup_16( + L replace0, L replace1, L replace2, L replace3, + L replace4, L replace5, L replace6, L replace7, + L replace8, L replace9, L replace10, L replace11, + L replace12, L replace13, L replace14, L replace15) const { + return lookup_16(simd8::repeat_16( + replace0, replace1, replace2, replace3, + replace4, replace5, replace6, replace7, + replace8, replace9, replace10, replace11, + replace12, replace13, replace14, replace15 + )); + } + }; + + // Signed bytes + template<> + struct simd8 : base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(int8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const int8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + int8_t v0, int8_t v1, int8_t v2, int8_t v3, int8_t v4, int8_t v5, int8_t v6, int8_t v7, + int8_t v8, int8_t v9, int8_t v10, int8_t v11, int8_t v12, int8_t v13, int8_t v14, int8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); + } + + // Order-sensitive comparisons + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epi8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epi8(*this, other); } + simdjson_inline simd8 operator>(const simd8 other) const { return _mm_cmpgt_epi8(*this, other); } + simdjson_inline simd8 operator<(const simd8 other) const { return _mm_cmpgt_epi8(other, *this); } + }; + + // Unsigned bytes + template<> + struct simd8: base8_numeric { + simdjson_inline simd8() : base8_numeric() {} + simdjson_inline simd8(const __m128i _value) : base8_numeric(_value) {} + // Splat constructor + simdjson_inline simd8(uint8_t _value) : simd8(splat(_value)) {} + // Array constructor + simdjson_inline simd8(const uint8_t* values) : simd8(load(values)) {} + // Member-by-member initialization + simdjson_inline simd8( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) : simd8(_mm_setr_epi8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + )) {} + // Repeat 16 values as many times as necessary (usually for lookup tables) + simdjson_inline static simd8 repeat_16( + uint8_t v0, uint8_t v1, uint8_t v2, uint8_t v3, uint8_t v4, uint8_t v5, uint8_t v6, uint8_t v7, + uint8_t v8, uint8_t v9, uint8_t v10, uint8_t v11, uint8_t v12, uint8_t v13, uint8_t v14, uint8_t v15 + ) { + return simd8( + v0, v1, v2, v3, v4, v5, v6, v7, + v8, v9, v10,v11,v12,v13,v14,v15 + ); } - return out; -} - -} // namespace numberparsing -} // namespace westmere -} // namespace simdjson -/* end file include/simdjson/generic/numberparsing.h */ -#endif // SIMDJSON_WESTMERE_NUMBERPARSING_H -/* end file include/simdjson/westmere/numberparsing.h */ -/* begin file include/simdjson/westmere/end.h */ -SIMDJSON_UNTARGET_WESTMERE -/* end file include/simdjson/westmere/end.h */ + // Saturated math + simdjson_inline simd8 saturating_add(const simd8 other) const { return _mm_adds_epu8(*this, other); } + simdjson_inline simd8 saturating_sub(const simd8 other) const { return _mm_subs_epu8(*this, other); } -#endif // SIMDJSON_IMPLEMENTATION_WESTMERE -#endif // SIMDJSON_WESTMERE_COMMON_H -/* end file include/simdjson/westmere.h */ + // Order-specific operations + simdjson_inline simd8 max_val(const simd8 other) const { return _mm_max_epu8(*this, other); } + simdjson_inline simd8 min_val(const simd8 other) const { return _mm_min_epu8(*this, other); } + // Same as >, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 gt_bits(const simd8 other) const { return this->saturating_sub(other); } + // Same as <, but only guarantees true is nonzero (< guarantees true = -1) + simdjson_inline simd8 lt_bits(const simd8 other) const { return other.saturating_sub(*this); } + simdjson_inline simd8 operator<=(const simd8 other) const { return other.max_val(*this) == other; } + simdjson_inline simd8 operator>=(const simd8 other) const { return other.min_val(*this) == other; } + simdjson_inline simd8 operator>(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } + simdjson_inline simd8 operator<(const simd8 other) const { return this->gt_bits(other).any_bits_set(); } -// Builtin implementation + // Bit-specific operations + simdjson_inline simd8 bits_not_set() const { return *this == uint8_t(0); } + simdjson_inline simd8 bits_not_set(simd8 bits) const { return (*this & bits).bits_not_set(); } + simdjson_inline simd8 any_bits_set() const { return ~this->bits_not_set(); } + simdjson_inline simd8 any_bits_set(simd8 bits) const { return ~this->bits_not_set(bits); } + simdjson_inline bool is_ascii() const { return _mm_movemask_epi8(*this) == 0; } + simdjson_inline bool bits_not_set_anywhere() const { return _mm_testz_si128(*this, *this); } + simdjson_inline bool any_bits_set_anywhere() const { return !bits_not_set_anywhere(); } + simdjson_inline bool bits_not_set_anywhere(simd8 bits) const { return _mm_testz_si128(*this, bits); } + simdjson_inline bool any_bits_set_anywhere(simd8 bits) const { return !bits_not_set_anywhere(bits); } + template + simdjson_inline simd8 shr() const { return simd8(_mm_srli_epi16(*this, N)) & uint8_t(0xFFu >> N); } + template + simdjson_inline simd8 shl() const { return simd8(_mm_slli_epi16(*this, N)) & uint8_t(0xFFu << N); } + // Get one of the bits and make a bitmask out of it. + // e.g. value.get_bit<7>() gets the high bit + template + simdjson_inline int get_bit() const { return _mm_movemask_epi8(_mm_slli_epi16(*this, 7-N)); } + }; -SIMDJSON_POP_DISABLE_WARNINGS + template + struct simd8x64 { + static constexpr int NUM_CHUNKS = 64 / sizeof(simd8); + static_assert(NUM_CHUNKS == 4, "Westmere kernel should use four registers per 64-byte block."); + const simd8 chunks[NUM_CHUNKS]; -#endif // SIMDJSON_IMPLEMENTATIONS_H -/* end file include/simdjson/implementations.h */ + simd8x64(const simd8x64& o) = delete; // no copy allowed + simd8x64& operator=(const simd8& other) = delete; // no assignment allowed + simd8x64() = delete; // no default constructor allowed -// Determine the best builtin implementation -#ifndef SIMDJSON_BUILTIN_IMPLEMENTATION -#if SIMDJSON_CAN_ALWAYS_RUN_ICELAKE -#define SIMDJSON_BUILTIN_IMPLEMENTATION icelake -#elif SIMDJSON_CAN_ALWAYS_RUN_HASWELL -#define SIMDJSON_BUILTIN_IMPLEMENTATION haswell -#elif SIMDJSON_CAN_ALWAYS_RUN_WESTMERE -#define SIMDJSON_BUILTIN_IMPLEMENTATION westmere -#elif SIMDJSON_CAN_ALWAYS_RUN_ARM64 -#define SIMDJSON_BUILTIN_IMPLEMENTATION arm64 -#elif SIMDJSON_CAN_ALWAYS_RUN_PPC64 -#define SIMDJSON_BUILTIN_IMPLEMENTATION ppc64 -#elif SIMDJSON_CAN_ALWAYS_RUN_FALLBACK -#define SIMDJSON_BUILTIN_IMPLEMENTATION fallback -#else -#error "All possible implementations (including fallback) have been disabled! simdjson will not run." -#endif -#endif // SIMDJSON_BUILTIN_IMPLEMENTATION + simdjson_inline simd8x64(const simd8 chunk0, const simd8 chunk1, const simd8 chunk2, const simd8 chunk3) : chunks{chunk0, chunk1, chunk2, chunk3} {} + simdjson_inline simd8x64(const T ptr[64]) : chunks{simd8::load(ptr), simd8::load(ptr+16), simd8::load(ptr+32), simd8::load(ptr+48)} {} -// redefining SIMDJSON_IMPLEMENTATION to "SIMDJSON_BUILTIN_IMPLEMENTATION" -// #define SIMDJSON_IMPLEMENTATION SIMDJSON_BUILTIN_IMPLEMENTATION + simdjson_inline void store(T ptr[64]) const { + this->chunks[0].store(ptr+sizeof(simd8)*0); + this->chunks[1].store(ptr+sizeof(simd8)*1); + this->chunks[2].store(ptr+sizeof(simd8)*2); + this->chunks[3].store(ptr+sizeof(simd8)*3); + } -// ondemand is only compiled as part of the builtin implementation at present + simdjson_inline simd8 reduce_or() const { + return (this->chunks[0] | this->chunks[1]) | (this->chunks[2] | this->chunks[3]); + } -// Interface declarations -/* begin file include/simdjson/generic/implementation_simdjson_result_base.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { + simdjson_inline uint64_t compress(uint64_t mask, T * output) const { + this->chunks[0].compress(uint16_t(mask), output); + this->chunks[1].compress(uint16_t(mask >> 16), output + 16 - count_ones(mask & 0xFFFF)); + this->chunks[2].compress(uint16_t(mask >> 32), output + 32 - count_ones(mask & 0xFFFFFFFF)); + this->chunks[3].compress(uint16_t(mask >> 48), output + 48 - count_ones(mask & 0xFFFFFFFFFFFF)); + return 64 - count_ones(mask); + } -// This is a near copy of include/error.h's implementation_simdjson_result_base, except it doesn't use std::pair -// so we can avoid inlining errors -// TODO reconcile these! -/** - * The result of a simdjson operation that could fail. - * - * Gives the option of reading error codes, or throwing an exception by casting to the desired result. - * - * This is a base class for implementations that want to add functions to the result type for - * chaining. - * - * Override like: - * - * struct simdjson_result : public internal::implementation_simdjson_result_base { - * simdjson_result() noexcept : internal::implementation_simdjson_result_base() {} - * simdjson_result(error_code error) noexcept : internal::implementation_simdjson_result_base(error) {} - * simdjson_result(T &&value) noexcept : internal::implementation_simdjson_result_base(std::forward(value)) {} - * simdjson_result(T &&value, error_code error) noexcept : internal::implementation_simdjson_result_base(value, error) {} - * // Your extra methods here - * } - * - * Then any method returning simdjson_result will be chainable with your methods. - */ -template -struct implementation_simdjson_result_base { + simdjson_inline uint64_t to_bitmask() const { + uint64_t r0 = uint32_t(this->chunks[0].to_bitmask() ); + uint64_t r1 = this->chunks[1].to_bitmask() ; + uint64_t r2 = this->chunks[2].to_bitmask() ; + uint64_t r3 = this->chunks[3].to_bitmask() ; + return r0 | (r1 << 16) | (r2 << 32) | (r3 << 48); + } - /** - * Create a new empty result with error = UNINITIALIZED. - */ - simdjson_inline implementation_simdjson_result_base() noexcept = default; + simdjson_inline uint64_t eq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] == mask, + this->chunks[1] == mask, + this->chunks[2] == mask, + this->chunks[3] == mask + ).to_bitmask(); + } - /** - * Create a new error result. - */ - simdjson_inline implementation_simdjson_result_base(error_code error) noexcept; + simdjson_inline uint64_t eq(const simd8x64 &other) const { + return simd8x64( + this->chunks[0] == other.chunks[0], + this->chunks[1] == other.chunks[1], + this->chunks[2] == other.chunks[2], + this->chunks[3] == other.chunks[3] + ).to_bitmask(); + } - /** - * Create a new successful result. - */ - simdjson_inline implementation_simdjson_result_base(T &&value) noexcept; + simdjson_inline uint64_t lteq(const T m) const { + const simd8 mask = simd8::splat(m); + return simd8x64( + this->chunks[0] <= mask, + this->chunks[1] <= mask, + this->chunks[2] <= mask, + this->chunks[3] <= mask + ).to_bitmask(); + } + }; // struct simd8x64 - /** - * Create a new result with both things (use if you don't want to branch when creating the result). - */ - simdjson_inline implementation_simdjson_result_base(T &&value, error_code error) noexcept; +} // namespace simd +} // unnamed namespace +} // namespace westmere +} // namespace simdjson - /** - * Move the value and the error to the provided variables. - * - * @param value The variable to assign the value to. May not be set if there is an error. - * @param error The variable to assign the error to. Set to SUCCESS if there is no error. - */ - simdjson_inline void tie(T &value, error_code &error) && noexcept; +#endif // SIMDJSON_WESTMERE_SIMD_INPUT_H +/* end file simdjson/westmere/simd.h */ - /** - * Move the value to the provided variable. - * - * @param value The variable to assign the value to. May not be set if there is an error. - */ - simdjson_inline error_code get(T &value) && noexcept; +namespace simdjson { +namespace westmere { +namespace { - /** - * The error. - */ - simdjson_inline error_code error() const noexcept; +using namespace simd; -#if SIMDJSON_EXCEPTIONS +// Holds backslashes and quotes locations. +struct backslash_and_quote { +public: + static constexpr uint32_t BYTES_PROCESSED = 32; + simdjson_inline static backslash_and_quote copy_and_find(const uint8_t *src, uint8_t *dst); - /** - * Get the result value. - * - * @throw simdjson_error if there was an error. - */ - simdjson_inline T& value() & noexcept(false); + simdjson_inline bool has_quote_first() { return ((bs_bits - 1) & quote_bits) != 0; } + simdjson_inline bool has_backslash() { return bs_bits != 0; } + simdjson_inline int quote_index() { return trailing_zeroes(quote_bits); } + simdjson_inline int backslash_index() { return trailing_zeroes(bs_bits); } - /** - * Take the result value (move it). - * - * @throw simdjson_error if there was an error. - */ - simdjson_inline T&& value() && noexcept(false); + uint32_t bs_bits; + uint32_t quote_bits; +}; // struct backslash_and_quote - /** - * Take the result value (move it). - * - * @throw simdjson_error if there was an error. - */ - simdjson_inline T&& take_value() && noexcept(false); +simdjson_inline backslash_and_quote backslash_and_quote::copy_and_find(const uint8_t *src, uint8_t *dst) { + // this can read up to 31 bytes beyond the buffer size, but we require + // SIMDJSON_PADDING of padding + static_assert(SIMDJSON_PADDING >= (BYTES_PROCESSED - 1), "backslash and quote finder must process fewer than SIMDJSON_PADDING bytes"); + simd8 v0(src); + simd8 v1(src + 16); + v0.store(dst); + v1.store(dst + 16); + uint64_t bs_and_quote = simd8x64(v0 == '\\', v1 == '\\', v0 == '"', v1 == '"').to_bitmask(); + return { + uint32_t(bs_and_quote), // bs_bits + uint32_t(bs_and_quote >> 32) // quote_bits + }; +} - /** - * Cast to the value (will throw on error). - * - * @throw simdjson_error if there was an error. - */ - simdjson_inline operator T&&() && noexcept(false); +} // unnamed namespace +} // namespace westmere +} // namespace simdjson +#endif // SIMDJSON_WESTMERE_STRINGPARSING_DEFS_H +/* end file simdjson/westmere/stringparsing_defs.h */ +/* end file simdjson/westmere/begin.h */ +/* including simdjson/generic/ondemand/amalgamated.h for westmere: #include "simdjson/generic/ondemand/amalgamated.h" */ +/* begin file simdjson/generic/ondemand/amalgamated.h for westmere */ +#if defined(SIMDJSON_CONDITIONAL_INCLUDE) && !defined(SIMDJSON_GENERIC_ONDEMAND_DEPENDENCIES_H) +#error simdjson/generic/ondemand/dependencies.h must be included before simdjson/generic/ondemand/amalgamated.h! +#endif -#endif // SIMDJSON_EXCEPTIONS +// Stuff other things depend on +/* including simdjson/generic/ondemand/base.h for westmere: #include "simdjson/generic/ondemand/base.h" */ +/* begin file simdjson/generic/ondemand/base.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_BASE_H - /** - * Get the result value. This function is safe if and only - * the error() method returns a value that evaluates to false. - */ - simdjson_inline const T& value_unsafe() const& noexcept; - /** - * Get the result value. This function is safe if and only - * the error() method returns a value that evaluates to false. - */ - simdjson_inline T& value_unsafe() & noexcept; - /** - * Take the result value (move it). This function is safe if and only - * the error() method returns a value that evaluates to false. - */ - simdjson_inline T&& value_unsafe() && noexcept; -protected: - /** users should never directly access first and second. **/ - T first{}; /** Users should never directly access 'first'. **/ - error_code second{UNINITIALIZED}; /** Users should never directly access 'second'. **/ -}; // struct implementation_simdjson_result_base +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_BASE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson -/* end file include/simdjson/generic/implementation_simdjson_result_base.h */ -/* begin file include/simdjson/generic/ondemand.h */ namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { /** * A fast, simple, DOM-like interface that parses JSON as you use it. * @@ -22911,2593 +78010,2845 @@ namespace ondemand { /** Represents the depth of a JSON value (number of nested arrays/objects). */ using depth_t = int32_t; -/** @copydoc simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::numberparsing::number_type */ -using number_type = simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::numberparsing::number_type; - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -/* begin file include/simdjson/generic/ondemand/json_type.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { -/** - * The type of a JSON value. - */ -enum class json_type { - // Start at 1 to catch uninitialized / default values more easily - array=1, ///< A JSON array ( [ 1, 2, 3 ... ] ) - object, ///< A JSON object ( { "a": 1, "b" 2, ... } ) - number, ///< A JSON number ( 1 or -2.3 or 4.5e6 ...) - string, ///< A JSON string ( "a" or "hello world\n" ...) - boolean, ///< A JSON boolean (true or false) - null ///< A JSON null (null) -}; - -class value_iterator; - -/** - * A type representing a JSON number. - * The design of the struct is deliberately straight-forward. All - * functions return standard values with no error check. - */ -struct number { - - /** - * return the automatically determined type of - * the number: number_type::floating_point_number, - * number_type::signed_integer or number_type::unsigned_integer. - * - * enum class number_type { - * floating_point_number=1, /// a binary64 number - * signed_integer, /// a signed integer that fits in a 64-bit word using two's complement - * unsigned_integer /// a positive integer larger or equal to 1<<63 - * }; - */ - simdjson_inline number_type get_number_type() const noexcept; - /** - * return true if the automatically determined type of - * the number is number_type::unsigned_integer. - */ - simdjson_inline bool is_uint64() const noexcept; - /** - * return the value as a uint64_t, only valid if is_uint64() is true. - */ - simdjson_inline uint64_t get_uint64() const noexcept; - simdjson_inline operator uint64_t() const noexcept; - - /** - * return true if the automatically determined type of - * the number is number_type::signed_integer. - */ - simdjson_inline bool is_int64() const noexcept; - /** - * return the value as a int64_t, only valid if is_int64() is true. - */ - simdjson_inline int64_t get_int64() const noexcept; - simdjson_inline operator int64_t() const noexcept; - - - /** - * return true if the automatically determined type of - * the number is number_type::floating_point_number. - */ - simdjson_inline bool is_double() const noexcept; - /** - * return the value as a double, only valid if is_double() is true. - */ - simdjson_inline double get_double() const noexcept; - simdjson_inline operator double() const noexcept; - - /** - * Convert the number to a double. Though it always succeed, the conversion - * may be lossy if the number cannot be represented exactly. - */ - simdjson_inline double as_double() const noexcept; - - -protected: - /** - * The next block of declaration is designed so that we can call the number parsing - * functions on a number type. They are protected and should never be used outside - * of the core simdjson library. - */ - friend class value_iterator; - template - friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer); - template - friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer); - template - friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer); - /** Store a signed 64-bit value to the number. */ - simdjson_inline void append_s64(int64_t value) noexcept; - /** Store an unsigned 64-bit value to the number. */ - simdjson_inline void append_u64(uint64_t value) noexcept; - /** Store a double value to the number. */ - simdjson_inline void append_double(double value) noexcept; - /** Specifies that the value is a double, but leave it undefined. */ - simdjson_inline void skip_double() noexcept; - /** - * End of friend declarations. - */ - - /** - * Our attributes are a union type (size = 64 bits) - * followed by a type indicator. - */ - union { - double floating_point_number; - int64_t signed_integer; - uint64_t unsigned_integer; - } payload{0}; - number_type type{number_type::signed_integer}; -}; - -/** - * Write the JSON type to the output stream - * - * @param out The output stream. - * @param type The json_type. - */ -inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept; - -#if SIMDJSON_EXCEPTIONS -/** - * Send JSON type to an output stream. - * - * @param out The output stream. - * @param type The json_type. - * @throw simdjson_error if the result being printed has an error. If there is an error with the - * underlying output stream, that error will be propagated (simdjson_error will not be - * thrown). - */ -inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false); -#endif - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { -public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_type &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - simdjson_inline simdjson_result() noexcept = default; - simdjson_inline ~simdjson_result() noexcept = default; ///< @private -}; - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/json_type.h */ -/* begin file include/simdjson/generic/ondemand/token_position.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { +/** @copydoc simdjson::westmere::number_type */ +using number_type = simdjson::westmere::number_type; /** @private Position in the JSON buffer indexes */ using token_position = const uint32_t *; -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/token_position.h */ -/* begin file include/simdjson/generic/ondemand/logger.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - +class array; +class array_iterator; +class document; +class document_reference; +class document_stream; +class field; class json_iterator; +enum class json_type; +struct number; +class object; +class object_iterator; +class parser; +class raw_json_string; +class token_iterator; +class value; class value_iterator; -// Logging should be free unless SIMDJSON_VERBOSE_LOGGING is set. Importantly, it is critical -// that the call to the log functions be side-effect free. Thus, for example, you should not -// create temporary std::string instances. -namespace logger { - -#if SIMDJSON_VERBOSE_LOGGING - static constexpr const bool LOG_ENABLED = true; -#else - static constexpr const bool LOG_ENABLED = false; -#endif - -// We do not want these functions to be 'really inlined' since real inlining is -// for performance purposes and if you are using the loggers, you do not care about -// performance (or should not). -static inline void log_headers() noexcept; -static inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept; -static inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept; -static inline void log_event(const json_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; -static inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; -static inline void log_value(const json_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; -static inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; -static inline void log_start_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; -static inline void log_end_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; -static inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail="") noexcept; -static inline void log_error(const json_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; - -static inline void log_event(const value_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; -static inline void log_value(const value_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; -static inline void log_start_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; -static inline void log_end_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; -static inline void log_error(const value_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; - -} // namespace logger } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson -/* end file include/simdjson/generic/ondemand/logger.h */ -/* begin file include/simdjson/generic/ondemand/raw_json_string.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_BASE_H +/* end file simdjson/generic/ondemand/base.h for westmere */ +/* including simdjson/generic/ondemand/value_iterator.h for westmere: #include "simdjson/generic/ondemand/value_iterator.h" */ +/* begin file simdjson/generic/ondemand/value_iterator.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -class object; -class parser; -class json_iterator; - /** - * A string escaped per JSON rules, terminated with quote ("). They are used to represent - * unescaped keys inside JSON documents. - * - * (In other words, a pointer to the beginning of a string, just after the start quote, inside a - * JSON file.) - * - * This class is deliberately simplistic and has little functionality. You can - * compare a raw_json_string instance with an unescaped C string, but - * that is nearly all you can do. - * - * The raw_json_string is unescaped. If you wish to write an unescaped version of it to your own - * buffer, you may do so using the parser.unescape(string, buff) method, using an ondemand::parser - * instance. Doing so requires you to have a sufficiently large buffer. + * Iterates through a single JSON value at a particular depth. * - * The raw_json_string instances originate typically from field instance which in turn represent - * key-value pairs from object instances. From a field instance, you get the raw_json_string - * instance by calling key(). You can, if you want a more usable string_view instance, call - * the unescaped_key() method on the field instance. You may also create a raw_json_string from - * any other string value, with the value.get_raw_json_string() method. Again, you can get - * a more usable string_view instance by calling get_string(). + * Does not keep track of the type of value: provides methods for objects, arrays and scalars and expects + * the caller to call the right ones. * + * @private This is not intended for external use. */ -class raw_json_string { +class value_iterator { +protected: + /** The underlying JSON iterator */ + json_iterator *_json_iter{}; + /** The depth of this value */ + depth_t _depth{}; + /** + * The starting token index for this value + */ + token_position _start_position{}; + public: + simdjson_inline value_iterator() noexcept = default; + /** - * Create a new invalid raw_json_string. - * - * Exists so you can declare a variable and later assign to it before use. + * Denote that we're starting a document. */ - simdjson_inline raw_json_string() noexcept = default; + simdjson_inline void start_document() noexcept; /** - * Create a new invalid raw_json_string pointed at the given location in the JSON. - * - * The given location must be just *after* the beginning quote (") in the JSON file. + * Skips a non-iterated or partially-iterated JSON value, whether it is a scalar, array or object. * - * It *must* be terminated by a ", and be a valid JSON string. + * Optimized for scalars. */ - simdjson_inline raw_json_string(const uint8_t * _buf) noexcept; + simdjson_warn_unused simdjson_inline error_code skip_child() noexcept; + /** - * Get the raw pointer to the beginning of the string in the JSON (just after the "). + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; + + /** + * Tell whether the iterator is at the start of the value + */ + simdjson_inline bool at_start() const noexcept; + + /** + * Tell whether the value is open--if the value has not been used, or the array/object is still open. + */ + simdjson_inline bool is_open() const noexcept; + + /** + * Tell whether the value is at an object's first field (just after the {). + */ + simdjson_inline bool at_first_field() const noexcept; + + /** + * Abandon all iteration. + */ + simdjson_inline void abandon() noexcept; + + /** + * Get the child value as a value_iterator. + */ + simdjson_inline value_iterator child_value() const noexcept; + + /** + * Get the depth of this value. + */ + simdjson_inline int32_t depth() const noexcept; + + /** + * Get the JSON type of this value. * - * It is possible for this function to return a null pointer if the instance - * has outlived its existence. + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". */ - simdjson_inline const char * raw() const noexcept; + simdjson_inline simdjson_result type() const noexcept; /** - * This compares the current instance to the std::string_view target: returns true if - * they are byte-by-byte equal (no escaping is done) on target.size() characters, - * and if the raw_json_string instance has a quote character at byte index target.size(). - * We never read more than length + 1 bytes in the raw_json_string instance. - * If length is smaller than target.size(), this will return false. + * @addtogroup object Object iteration * - * The std::string_view instance may contain any characters. However, the caller - * is responsible for setting length so that length bytes may be read in the - * raw_json_string. + * Methods to iterate and find object fields. These methods generally *assume* the value is + * actually an object; the caller is responsible for keeping track of that fact. * - * Performance: the comparison may be done using memcmp which may be efficient - * for long strings. + * @{ */ - simdjson_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept; /** - * This compares the current instance to the std::string_view target: returns true if - * they are byte-by-byte equal (no escaping is done). - * The std::string_view instance should not contain unescaped quote characters: - * the caller is responsible for this check. See is_free_from_unescaped_quote. + * Start an object iteration. * - * Performance: the comparison is done byte-by-byte which might be inefficient for - * long strings. + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + */ + simdjson_warn_unused simdjson_inline simdjson_result start_object() noexcept; + /** + * Start an object iteration from the root. * - * If target is a compile-time constant, and your compiler likes you, - * you should be able to do the following without performance penalty... + * @returns Whether the object had any fields (returns false for empty). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document + */ + simdjson_warn_unused simdjson_inline simdjson_result start_root_object() noexcept; + /** + * Checks whether an object could be started from the root. May be called by start_root_object. * - * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); - * s.unsafe_is_equal(target); + * @returns SUCCESS if it is possible to safely start an object from the root (document level). + * @error INCORRECT_TYPE if there is no opening { + * @error TAPE_ERROR if there is no matching } at end of document */ - simdjson_inline bool unsafe_is_equal(std::string_view target) const noexcept; - + simdjson_warn_unused simdjson_inline error_code check_root_object() noexcept; /** - * This compares the current instance to the C string target: returns true if - * they are byte-by-byte equal (no escaping is done). - * The provided C string should not contain an unescaped quote character: - * the caller is responsible for this check. See is_free_from_unescaped_quote. + * Start an object iteration after the user has already checked and moved past the {. * - * If target is a compile-time constant, and your compiler likes you, - * you should be able to do the following without performance penalty... + * Does not move the iterator unless the object is empty ({}). * - * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); - * s.unsafe_is_equal(target); + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). */ - simdjson_inline bool unsafe_is_equal(const char* target) const noexcept; - + simdjson_warn_unused simdjson_inline simdjson_result started_object() noexcept; /** - * This compares the current instance to the std::string_view target: returns true if - * they are byte-by-byte equal (no escaping is done). + * Start an object iteration from the root, after the user has already checked and moved past the {. + * + * Does not move the iterator unless the object is empty ({}). + * + * @returns Whether the object had any fields (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). */ - simdjson_inline bool is_equal(std::string_view target) const noexcept; + simdjson_warn_unused simdjson_inline simdjson_result started_root_object() noexcept; /** - * This compares the current instance to the C string target: returns true if - * they are byte-by-byte equal (no escaping is done). + * Moves to the next field in an object. + * + * Looks for , and }. If } is found, the object is finished and the iterator advances past it. + * Otherwise, it advances to the next value. + * + * @return whether there is another field in the object. + * @error TAPE_ERROR If there is a comma missing between fields. + * @error TAPE_ERROR If there is a comma, but not enough tokens remaining to have a key, :, and value. */ - simdjson_inline bool is_equal(const char* target) const noexcept; + simdjson_warn_unused simdjson_inline simdjson_result has_next_field() noexcept; /** - * Returns true if target is free from unescaped quote. If target is known at - * compile-time, we might expect the computation to happen at compile time with - * many compilers (not all!). + * Get the current field's key. */ - static simdjson_inline bool is_free_from_unescaped_quote(std::string_view target) noexcept; - static simdjson_inline bool is_free_from_unescaped_quote(const char* target) noexcept; - -private: - + simdjson_warn_unused simdjson_inline simdjson_result field_key() noexcept; /** - * This will set the inner pointer to zero, effectively making - * this instance unusable. + * Pass the : in the field and move to its value. */ - simdjson_inline void consume() noexcept { buf = nullptr; } + simdjson_warn_unused simdjson_inline error_code field_value() noexcept; /** - * Checks whether the inner pointer is non-null and thus usable. + * Find the next field with the given key. + * + * Assumes you have called next_field() or otherwise matched the previous value. + * + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). */ - simdjson_inline simdjson_warn_unused bool alive() const noexcept { return buf != nullptr; } + simdjson_warn_unused simdjson_inline error_code find_field(const std::string_view key) noexcept; /** - * Unescape this JSON string, replacing \\ with \, \n with newline, etc. - * The result will be a valid UTF-8. + * Find the next field with the given key, *without* unescaping. This assumes object order: it + * will not find the field if it was already passed when looking for some *other* field. * - * ## IMPORTANT: string_view lifetime + * Assumes you have called next_field() or otherwise matched the previous value. * - * The string_view is only valid until the next parse() call on the parser. + * This means the iterator must be sitting at the next key: * - * @param iter A json_iterator, which contains a buffer where the string will be written. - * @param allow_replacement Whether we allow replacement of invalid surrogate pairs. + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). */ - simdjson_inline simdjson_warn_unused simdjson_result unescape(json_iterator &iter, bool allow_replacement) const noexcept; + simdjson_warn_unused simdjson_inline simdjson_result find_field_raw(const std::string_view key) noexcept; /** - * Unescape this JSON string, replacing \\ with \, \n with newline, etc. - * The result may not be a valid UTF-8. https://simonsapin.github.io/wtf-8/ + * Find the field with the given key without regard to order, and *without* unescaping. * - * ## IMPORTANT: string_view lifetime + * This is an unordered object lookup: if the field is not found initially, it will cycle around and scan from the beginning. * - * The string_view is only valid until the next parse() call on the parser. + * Assumes you have called next_field() or otherwise matched the previous value. * - * @param iter A json_iterator, which contains a buffer where the string will be written. + * This means the iterator must be sitting at the next key: + * + * ``` + * { "a": 1, "b": 2 } + * ^ + * ``` + * + * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to + * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may + * fail to match some keys with escapes (\u, \n, etc.). */ - simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(json_iterator &iter) const noexcept; - const uint8_t * buf{}; - friend class object; - friend class field; - friend class parser; - friend struct simdjson_result; -}; - -simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &, const raw_json_string &) noexcept; - -/** - * Comparisons between raw_json_string and std::string_view instances are potentially unsafe: the user is responsible - * for providing a string with no unescaped quote. Note that unescaped quotes cannot be present in valid JSON strings. - */ -simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept; -simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept; -simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept; -simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept; - - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { -public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - simdjson_inline simdjson_result() noexcept = default; - simdjson_inline ~simdjson_result() noexcept = default; ///< @private - - simdjson_inline simdjson_result raw() const noexcept; - simdjson_inline simdjson_warn_unused simdjson_result unescape(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &iter, bool allow_replacement) const noexcept; - simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &iter) const noexcept; -}; + simdjson_warn_unused simdjson_inline simdjson_result find_field_unordered_raw(const std::string_view key) noexcept; -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/raw_json_string.h */ -/* begin file include/simdjson/generic/ondemand/token_iterator.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { + /** @} */ -/** - * Iterates through JSON tokens (`{` `}` `[` `]` `,` `:` `""` `123` `true` `false` `null`) - * detected by stage 1. - * - * @private This is not intended for external use. - */ -class token_iterator { -public: /** - * Create a new invalid token_iterator. - * - * Exists so you can declare a variable and later assign to it before use. + * @addtogroup array Array iteration + * Methods to iterate over array elements. These methods generally *assume* the value is actually + * an object; the caller is responsible for keeping track of that fact. + * @{ */ - simdjson_inline token_iterator() noexcept = default; - simdjson_inline token_iterator(token_iterator &&other) noexcept = default; - simdjson_inline token_iterator &operator=(token_iterator &&other) noexcept = default; - simdjson_inline token_iterator(const token_iterator &other) noexcept = default; - simdjson_inline token_iterator &operator=(const token_iterator &other) noexcept = default; /** - * Advance to the next token (returning the current one). + * Check for an opening [ and start an array iteration. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. */ - simdjson_inline const uint8_t *return_current_and_advance() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result start_array() noexcept; /** - * Reports the current offset in bytes from the start of the underlying buffer. + * Check for an opening [ and start an array iteration while at the root. + * + * @returns Whether the array had any elements (returns false for empty). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document */ - simdjson_inline uint32_t current_offset() const noexcept; + simdjson_warn_unused simdjson_inline simdjson_result start_root_array() noexcept; /** - * Get the JSON text for a given token (relative). - * - * This is not null-terminated; it is a view into the JSON. - * - * @param delta The relative position of the token to retrieve. e.g. 0 = current token, - * 1 = next token, -1 = prev token. + * Checks whether an array could be started from the root. May be called by start_root_array. * - * TODO consider a string_view, assuming the length will get stripped out by the optimizer when - * it isn't used ... + * @returns SUCCESS if it is possible to safely start an array from the root (document level). + * @error INCORRECT_TYPE If there is no [. + * @error TAPE_ERROR if there is no matching ] at end of document */ - simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + simdjson_warn_unused simdjson_inline error_code check_root_array() noexcept; /** - * Get the maximum length of the JSON text for a given token. + * Start an array iteration, after the user has already checked and moved past the [. * - * The length will include any whitespace at the end of the token. + * Does not move the iterator unless the array is empty ([]). * - * @param delta The relative position of the token to retrieve. e.g. 0 = current token, - * 1 = next token, -1 = prev token. + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). */ - simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; - + simdjson_warn_unused simdjson_inline simdjson_result started_array() noexcept; /** - * Get the JSON text for a given token. - * - * This is not null-terminated; it is a view into the JSON. + * Start an array iteration from the root, after the user has already checked and moved past the [. * - * @param position The position of the token. + * Does not move the iterator unless the array is empty ([]). * + * @returns Whether the array had any elements (returns false for empty). + * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* + * array or object is incomplete). */ - simdjson_inline const uint8_t *peek(token_position position) const noexcept; + simdjson_warn_unused simdjson_inline simdjson_result started_root_array() noexcept; + /** - * Get the maximum length of the JSON text for a given token. + * Moves to the next element in an array. * - * The length will include any whitespace at the end of the token. + * Looks for , and ]. If ] is found, the array is finished and the iterator advances past it. + * Otherwise, it advances to the next value. * - * @param position The position of the token. + * @return Whether there is another element in the array. + * @error TAPE_ERROR If there is a comma missing between elements. */ - simdjson_inline uint32_t peek_length(token_position position) const noexcept; + simdjson_warn_unused simdjson_inline simdjson_result has_next_element() noexcept; /** - * Return the current index. + * Get a child value iterator. */ - simdjson_inline token_position position() const noexcept; + simdjson_warn_unused simdjson_inline value_iterator child() const noexcept; + + /** @} */ + /** - * Reset to a previously saved index. + * @defgroup scalar Scalar values + * @addtogroup scalar + * @{ */ - simdjson_inline void set_position(token_position target_position) noexcept; - // NOTE: we don't support a full C++ iterator interface, because we expect people to make - // different calls to advance the iterator based on *their own* state. + simdjson_warn_unused simdjson_inline simdjson_result get_string(bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_bool() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_null() noexcept; + simdjson_warn_unused simdjson_inline bool is_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_integer() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; - simdjson_inline bool operator==(const token_iterator &other) const noexcept; - simdjson_inline bool operator!=(const token_iterator &other) const noexcept; - simdjson_inline bool operator>(const token_iterator &other) const noexcept; - simdjson_inline bool operator>=(const token_iterator &other) const noexcept; - simdjson_inline bool operator<(const token_iterator &other) const noexcept; - simdjson_inline bool operator<=(const token_iterator &other) const noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_string(bool check_trailing, bool allow_replacement) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_wobbly_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_raw_json_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_int64_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_double_in_string(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_bool(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline bool is_root_negative() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_integer(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number_type(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_root_number(bool check_trailing) noexcept; + simdjson_warn_unused simdjson_inline simdjson_result is_root_null(bool check_trailing) noexcept; + + simdjson_inline error_code error() const noexcept; + simdjson_inline uint8_t *&string_buf_loc() noexcept; + simdjson_inline const json_iterator &json_iter() const noexcept; + simdjson_inline json_iterator &json_iter() noexcept; + + simdjson_inline void assert_is_valid() const noexcept; + simdjson_inline bool is_valid() const noexcept; + /** @} */ protected: - simdjson_inline token_iterator(const uint8_t *buf, token_position position) noexcept; + /** + * Restarts an array iteration. + * @returns Whether the array has any elements (returns false for empty). + */ + simdjson_inline simdjson_result reset_array() noexcept; + /** + * Restarts an object iteration. + * @returns Whether the object has any fields (returns false for empty). + */ + simdjson_inline simdjson_result reset_object() noexcept; + /** + * move_at_start(): moves us so that we are pointing at the beginning of + * the container. It updates the index so that at_start() is true and it + * syncs the depth. The user can then create a new container instance. + * + * Usage: used with value::count_elements(). + **/ + simdjson_inline void move_at_start() noexcept; /** - * Get the index of the JSON text for a given token (relative). + * move_at_container_start(): moves us so that we are pointing at the beginning of + * the container so that assert_at_container_start() passes. * - * This is not null-terminated; it is a view into the JSON. + * Usage: used with reset_array() and reset_object(). + **/ + simdjson_inline void move_at_container_start() noexcept; + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + simdjson_inline value_iterator(json_iterator *json_iter, depth_t depth, token_position start_index) noexcept; + + simdjson_inline simdjson_result parse_null(const uint8_t *json) const noexcept; + simdjson_inline simdjson_result parse_bool(const uint8_t *json) const noexcept; + simdjson_inline const uint8_t *peek_start() const noexcept; + simdjson_inline uint32_t peek_start_length() const noexcept; + + /** + * The general idea of the advance_... methods and the peek_* methods + * is that you first peek and check that you have desired type. If you do, + * and only if you do, then you advance. * - * @param delta The relative position of the token to retrieve. e.g. 0 = current token, - * 1 = next token, -1 = prev token. + * We used to unconditionally advance. But this made reasoning about our + * current state difficult. + * Suppose you always advance. Look at the 'value' matching the key + * "shadowable" in the following example... + * + * ({"globals":{"a":{"shadowable":[}}}}) + * + * If the user thinks it is a Boolean and asks for it, then we check the '[', + * decide it is not a Boolean, but still move into the next character ('}'). Now + * we are left pointing at '}' right after a '['. And we have not yet reported + * an error, only that we do not have a Boolean. + * + * If, instead, you just stand your ground until it is content that you know, then + * you will only even move beyond the '[' if the user tells you that you have an + * array. So you will be at the '}' character inside the array and, hopefully, you + * will then catch the error because an array cannot start with '}', but the code + * processing Boolean values does not know this. + * + * So the contract is: first call 'peek_...' and then call 'advance_...' only + * if you have determined that it is a type you can handle. + * + * Unfortunately, it makes the code more verbose, longer and maybe more error prone. */ - simdjson_inline uint32_t peek_index(int32_t delta=0) const noexcept; + + simdjson_inline void advance_scalar(const char *type) noexcept; + simdjson_inline void advance_root_scalar(const char *type) noexcept; + simdjson_inline void advance_non_root_scalar(const char *type) noexcept; + + simdjson_inline const uint8_t *peek_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_root_scalar(const char *type) noexcept; + simdjson_inline const uint8_t *peek_non_root_scalar(const char *type) noexcept; + + + simdjson_inline error_code start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept; + simdjson_inline error_code end_container() noexcept; + /** - * Get the index of the JSON text for a given token. + * Advance to a place expecting a value (increasing depth). * - * This is not null-terminated; it is a view into the JSON. + * @return The current token (the one left behind). + * @error TAPE_ERROR If the document ended early. + */ + simdjson_inline simdjson_result advance_to_value() noexcept; + + simdjson_inline error_code incorrect_type_error(const char *message) const noexcept; + simdjson_inline error_code error_unless_more_tokens(uint32_t tokens=1) const noexcept; + + simdjson_inline bool is_at_start() const noexcept; + /** + * is_at_iterator_start() returns true on an array or object after it has just been + * created, whether the instance is empty or not. * - * @param position The position of the token. + * Usage: used by array::begin() in debug mode (SIMDJSON_DEVELOPMENT_CHECKS) + */ + simdjson_inline bool is_at_iterator_start() const noexcept; + + /** + * Assuming that we are within an object, this returns true if we + * are pointing at a key. * + * Usage: the skip_child() method should never be used while we are pointing + * at a key inside an object. */ - simdjson_inline uint32_t peek_index(token_position position) const noexcept; + simdjson_inline bool is_at_key() const noexcept; + + inline void assert_at_start() const noexcept; + inline void assert_at_container_start() const noexcept; + inline void assert_at_root() const noexcept; + inline void assert_at_child() const noexcept; + inline void assert_at_next() const noexcept; + inline void assert_at_non_root_start() const noexcept; - const uint8_t *buf{}; - token_position _position{}; + /** Get the starting position of this value */ + simdjson_inline token_position start_position() const noexcept; - friend class json_iterator; - friend class value_iterator; + /** @copydoc error_code json_iterator::position() const noexcept; */ + simdjson_inline token_position position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position last_position() const noexcept; + /** @copydoc error_code json_iterator::end_position() const noexcept; */ + simdjson_inline token_position end_position() const noexcept; + /** @copydoc error_code json_iterator::report_error(error_code error, const char *message) noexcept; */ + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + friend class document; friend class object; - friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept; - friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept; -}; + friend class array; + friend class value; +}; // value_iterator } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +struct simdjson_result : public westmere::implementation_simdjson_result_base { public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::token_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(westmere::ondemand::value_iterator &&value) noexcept; ///< @private simdjson_inline simdjson_result(error_code error) noexcept; ///< @private simdjson_inline simdjson_result() noexcept = default; - simdjson_inline ~simdjson_result() noexcept = default; ///< @private }; } // namespace simdjson -/* end file include/simdjson/generic/ondemand/token_iterator.h */ -/* begin file include/simdjson/generic/ondemand/json_iterator.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_H +/* end file simdjson/generic/ondemand/value_iterator.h for westmere */ +/* including simdjson/generic/ondemand/value.h for westmere: #include "simdjson/generic/ondemand/value.h" */ +/* begin file simdjson/generic/ondemand/value.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -class document; -class document_stream; -class object; -class array; -class value; -class raw_json_string; -class parser; - /** - * Iterates through JSON tokens, keeping track of depth and string buffer. - * - * @private This is not intended for external use. + * An ephemeral JSON value returned during iteration. It is only valid for as long as you do + * not access more data in the JSON document. */ -class json_iterator { -protected: - token_iterator token{}; - ondemand::parser *parser{}; +class value { +public: /** - * Next free location in the string buffer. + * Create a new invalid value. * - * Used by raw_json_string::unescape() to have a place to unescape strings to. + * Exists so you can declare a variable and later assign to it before use. */ - uint8_t *_string_buf_loc{}; + simdjson_inline value() noexcept = default; + /** - * JSON error, if there is one. + * Get this value as the given type. * - * INCORRECT_TYPE and NO_SUCH_FIELD are *not* stored here, ever. + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool * - * PERF NOTE: we *hope* this will be elided into control flow, as it is only used (a) in the first - * iteration of the loop, or (b) for the final iteration after a missing comma is found in ++. If - * this is not elided, we should make sure it's at least not using up a register. Failing that, - * we should store it in document so there's only one of them. - */ - error_code error{SUCCESS}; - /** - * Depth of the current token in the JSON. + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. * - * - 0 = finished with document - * - 1 = document root value (could be [ or {, not yet known) - * - 2 = , or } inside root array/object - * - 3 = key or value inside root array/object. - */ - depth_t _depth{}; - /** - * Beginning of the document indexes. - * Normally we have root == parser->implementation->structural_indexes.get() - * but this may differ, especially in streaming mode (where we have several - * documents); - */ - token_position _root{}; - /** - * Normally, a json_iterator operates over a single document, but in - * some cases, we may have a stream of documents. This attribute is meant - * as meta-data: the json_iterator works the same irrespective of the - * value of this attribute. - */ - bool _streaming{false}; - -public: - simdjson_inline json_iterator() noexcept = default; - simdjson_inline json_iterator(json_iterator &&other) noexcept; - simdjson_inline json_iterator &operator=(json_iterator &&other) noexcept; - simdjson_inline explicit json_iterator(const json_iterator &other) noexcept = default; - simdjson_inline json_iterator &operator=(const json_iterator &other) noexcept = default; - /** - * Skips a JSON value, whether it is a scalar, array or object. + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. */ - simdjson_warn_unused simdjson_inline error_code skip_child(depth_t parent_depth) noexcept; + template simdjson_inline simdjson_result get() noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } /** - * Tell whether the iterator is still at the start + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. */ - simdjson_inline bool at_root() const noexcept; + template simdjson_inline error_code get(T &out) noexcept; /** - * Tell whether we should be expected to run in streaming - * mode (iterating over many documents). It is pure metadata - * that does not affect how the iterator works. It is used by - * start_root_array() and start_root_object(). + * Cast this JSON value to an array. + * + * @returns An object that can be used to iterate the array. + * @returns INCORRECT_TYPE If the JSON value is not an array. */ - simdjson_inline bool streaming() const noexcept; + simdjson_inline simdjson_result get_array() noexcept; /** - * Get the root value iterator - */ - simdjson_inline token_position root_position() const noexcept; - /** - * Assert that we are at the document depth (== 1) - */ - simdjson_inline void assert_at_document_depth() const noexcept; - /** - * Assert that we are at the root of the document + * Cast this JSON value to an object. + * + * @returns An object that can be used to look up or iterate fields. + * @returns INCORRECT_TYPE If the JSON value is not an object. */ - simdjson_inline void assert_at_root() const noexcept; + simdjson_inline simdjson_result get_object() noexcept; /** - * Tell whether the iterator is at the EOF mark + * Cast this JSON value to an unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. */ - simdjson_inline bool at_end() const noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; /** - * Tell whether the iterator is live (has not been moved). + * Cast this JSON value (inside string) to a unsigned integer. + * + * @returns A unsigned 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. */ - simdjson_inline bool is_alive() const noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; /** - * Abandon this iterator, setting depth to 0 (as if the document is finished). + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. */ - simdjson_inline void abandon() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; /** - * Advance the current token without modifying depth. + * Cast this JSON value (inside string) to a signed integer. + * + * @returns A signed 64-bit integer. + * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. */ - simdjson_inline const uint8_t *return_current_and_advance() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; /** - * Returns true if there is a single token in the index (i.e., it is - * a JSON with a scalar value such as a single number). + * Cast this JSON value to a double. * - * @return whether there is a single token + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. */ - simdjson_inline bool is_single_token() const noexcept; + simdjson_inline simdjson_result get_double() noexcept; /** - * Assert that there are at least the given number of tokens left. + * Cast this JSON value (inside string) to a double * - * Has no effect in release builds. + * @returns A double. + * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. */ - simdjson_inline void assert_more_tokens(uint32_t required_tokens=1) const noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + /** - * Assert that the given position addresses an actual token (is within bounds). + * Cast this JSON value to a string. * - * Has no effect in release builds. - */ - simdjson_inline void assert_valid_position(token_position position) const noexcept; - /** - * Get the JSON text for a given token (relative). + * The string is guaranteed to be valid UTF-8. * - * This is not null-terminated; it is a view into the JSON. + * Equivalent to get(). * - * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + * Important: a value should be consumed once. Calling get_string() twice on the same value + * is an error. * - * TODO consider a string_view, assuming the length will get stripped out by the optimizer when - * it isn't used ... + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. */ - simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + + /** - * Get the maximum length of the JSON text for the current token (or relative). - * - * The length will include any whitespace at the end of the token. + * Cast this JSON value to a "wobbly" string. * - * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. - */ - simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; - /** - * Get a pointer to the current location in the input buffer. + * The string is may not be a valid UTF-8 string. + * See https://simonsapin.github.io/wtf-8/ * - * This is not null-terminated; it is a view into the JSON. + * Important: a value should be consumed once. Calling get_wobbly_string() twice on the same value + * is an error. * - * You may be pointing outside of the input buffer: it is not generally - * safe to dereference this pointer. + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @returns INCORRECT_TYPE if the JSON value is not a string. */ - simdjson_inline const uint8_t *unsafe_pointer() const noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; /** - * Get the JSON text for a given token. - * - * This is not null-terminated; it is a view into the JSON. + * Cast this JSON value to a raw_json_string. * - * @param position The position of the token to retrieve. + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). * - * TODO consider a string_view, assuming the length will get stripped out by the optimizer when - * it isn't used ... + * @returns A pointer to the raw JSON for the given string. + * @returns INCORRECT_TYPE if the JSON value is not a string. */ - simdjson_inline const uint8_t *peek(token_position position) const noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + /** - * Get the maximum length of the JSON text for the current token (or relative). - * - * The length will include any whitespace at the end of the token. + * Cast this JSON value to a bool. * - * @param position The position of the token to retrieve. + * @returns A bool value. + * @returns INCORRECT_TYPE if the JSON value is not true or false. */ - simdjson_inline uint32_t peek_length(token_position position) const noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + /** - * Get the JSON text for the last token in the document. - * - * This is not null-terminated; it is a view into the JSON. + * Checks if this JSON value is null. If and only if the value is + * null, then it is consumed (we advance). If we find a token that + * begins with 'n' but is not 'null', then an error is returned. * - * TODO consider a string_view, assuming the length will get stripped out by the optimizer when - * it isn't used ... + * @returns Whether the value is null. + * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. */ - simdjson_inline const uint8_t *peek_last() const noexcept; + simdjson_inline simdjson_result is_null() noexcept; +#if SIMDJSON_EXCEPTIONS /** - * Ascend one level. - * - * Validates that the depth - 1 == parent_depth. + * Cast this JSON value to an array. * - * @param parent_depth the expected parent depth. + * @returns An object that can be used to iterate the array. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. */ - simdjson_inline void ascend_to(depth_t parent_depth) noexcept; - + simdjson_inline operator array() noexcept(false); /** - * Descend one level. - * - * Validates that the new depth == child_depth. + * Cast this JSON value to an object. * - * @param child_depth the expected child depth. + * @returns An object that can be used to look up or iterate fields. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. */ - simdjson_inline void descend_to(depth_t child_depth) noexcept; - simdjson_inline void descend_to(depth_t child_depth, int32_t delta) noexcept; - + simdjson_inline operator object() noexcept(false); /** - * Get current depth. + * Cast this JSON value to an unsigned integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. */ - simdjson_inline depth_t depth() const noexcept; - + simdjson_inline operator uint64_t() noexcept(false); /** - * Get current (writeable) location in the string buffer. + * Cast this JSON value to a signed integer. + * + * @returns A signed 64-bit integer. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. */ - simdjson_inline uint8_t *&string_buf_loc() noexcept; - + simdjson_inline operator int64_t() noexcept(false); /** - * Report an unrecoverable error, preventing further iteration. + * Cast this JSON value to a double. * - * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD. - * @param message An error message to report with the error. + * @returns A double. + * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. */ - simdjson_inline error_code report_error(error_code error, const char *message) noexcept; - + simdjson_inline operator double() noexcept(false); /** - * Log error, but don't stop iteration. - * @param error The error to report. Must be INCORRECT_TYPE, or NO_SUCH_FIELD. - * @param message An error message to report with the error. + * Cast this JSON value to a string. + * + * The string is guaranteed to be valid UTF-8. + * + * Equivalent to get(). + * + * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next + * time it parses a document or when it is destroyed. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. */ - simdjson_inline error_code optional_error(error_code error, const char *message) noexcept; - + simdjson_inline operator std::string_view() noexcept(false); /** - * Take an input in json containing max_len characters and attempt to copy it over to tmpbuf, a buffer with - * N bytes of capacity. It will return false if N is too small (smaller than max_len) of if it is zero. - * The buffer (tmpbuf) is padded with space characters. + * Cast this JSON value to a raw_json_string. + * + * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * + * @returns A pointer to the raw JSON for the given string. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. */ - simdjson_warn_unused simdjson_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept; - - simdjson_inline token_position position() const noexcept; + simdjson_inline operator raw_json_string() noexcept(false); /** - * Write the raw_json_string to the string buffer and return a string_view. - * Each raw_json_string should be unescaped once, or else the string buffer might - * overflow. + * Cast this JSON value to a bool. + * + * @returns A bool value. + * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. */ - simdjson_inline simdjson_result unescape(raw_json_string in, bool allow_replacement) noexcept; - simdjson_inline simdjson_result unescape_wobbly(raw_json_string in) noexcept; - simdjson_inline void reenter_child(token_position position, depth_t child_depth) noexcept; - - simdjson_inline error_code consume_character(char c) noexcept; -#if SIMDJSON_DEVELOPMENT_CHECKS - simdjson_inline token_position start_position(depth_t depth) const noexcept; - simdjson_inline void set_start_position(depth_t depth, token_position position) noexcept; + simdjson_inline operator bool() noexcept(false); #endif - /* Useful for debugging and logging purposes. */ - inline std::string to_string() const noexcept; - - /** - * Returns the current location in the document if in bounds. - */ - inline simdjson_result current_location() const noexcept; - - /** - * Updates this json iterator so that it is back at the beginning of the document, - * as if it had just been created. - */ - inline void rewind() noexcept; - /** - * This checks whether the {,},[,] are balanced so that the document - * ends with proper zero depth. This requires scanning the whole document - * and it may be expensive. It is expected that it will be rarely called. - * It does not attempt to match { with } and [ with ]. - */ - inline bool balanced() const noexcept; -protected: - simdjson_inline json_iterator(const uint8_t *buf, ondemand::parser *parser) noexcept; - /// The last token before the end - simdjson_inline token_position last_position() const noexcept; - /// The token *at* the end. This points at gibberish and should only be used for comparison. - simdjson_inline token_position end_position() const noexcept; - /// The end of the buffer. - simdjson_inline token_position end() const noexcept; - - friend class document; - friend class document_stream; - friend class object; - friend class array; - friend class value; - friend class raw_json_string; - friend class parser; - friend class value_iterator; - friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept; - friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept; -}; // json_iterator - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { -public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - - simdjson_inline simdjson_result() noexcept = default; -}; - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/json_iterator.h */ -/* begin file include/simdjson/generic/ondemand/value_iterator.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -class document; -class object; -class array; -class value; -class raw_json_string; -class parser; - -/** - * Iterates through a single JSON value at a particular depth. - * - * Does not keep track of the type of value: provides methods for objects, arrays and scalars and expects - * the caller to call the right ones. - * - * @private This is not intended for external use. - */ -class value_iterator { -protected: - /** The underlying JSON iterator */ - json_iterator *_json_iter{}; - /** The depth of this value */ - depth_t _depth{}; - /** - * The starting token index for this value - */ - token_position _start_position{}; - -public: - simdjson_inline value_iterator() noexcept = default; - /** - * Denote that we're starting a document. - */ - simdjson_inline void start_document() noexcept; - - /** - * Skips a non-iterated or partially-iterated JSON value, whether it is a scalar, array or object. + * Begin array iteration. * - * Optimized for scalars. + * Part of the std::iterable interface. + * + * @returns INCORRECT_TYPE If the JSON value is not an array. */ - simdjson_warn_unused simdjson_inline error_code skip_child() noexcept; - + simdjson_inline simdjson_result begin() & noexcept; /** - * Tell whether the iterator is at the EOF mark + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. */ - simdjson_inline bool at_end() const noexcept; - + simdjson_inline simdjson_result end() & noexcept; /** - * Tell whether the iterator is at the start of the value + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * Performance hint: You should only call count_elements() as a last + * resort as it may require scanning the document twice or more. */ - simdjson_inline bool at_start() const noexcept; - + simdjson_inline simdjson_result count_elements() & noexcept; /** - * Tell whether the value is open--if the value has not been used, or the array/object is still open. + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method on the object instance. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. */ - simdjson_inline bool is_open() const noexcept; - + simdjson_inline simdjson_result count_fields() & noexcept; /** - * Tell whether the value is at an object's first field (just after the {). + * Get the value at the given index in the array. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length */ - simdjson_inline bool at_first_field() const noexcept; - + simdjson_inline simdjson_result at(size_t index) noexcept; /** - * Abandon all iteration. - */ - simdjson_inline void abandon() noexcept; + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. - /** - * Get the child value as a value_iterator. + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. */ - simdjson_inline value_iterator child_value() const noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; /** - * Get the depth of this value. + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. */ - simdjson_inline int32_t depth() const noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; /** - * Get the JSON type of this value. + * Get the type of this JSON value. It does not validate or consume the value. + * E.g., you must still call "is_null()" to check that a value is null even if + * "type()" returns json_type::null. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). * + * @return The type of JSON value (json_type::array, json_type::object, json_type::string, + * json_type::number, json_type::boolean, or json_type::null). * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". */ - simdjson_inline simdjson_result type() const noexcept; + simdjson_inline simdjson_result type() noexcept; /** - * @addtogroup object Object iteration - * - * Methods to iterate and find object fields. These methods generally *assume* the value is - * actually an object; the caller is responsible for keeping track of that fact. + * Checks whether the value is a scalar (string, number, null, Boolean). + * Returns false when there it is an array or object. * - * @{ + * @returns true if the type is string, number, null, Boolean + * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". */ + simdjson_inline simdjson_result is_scalar() noexcept; /** - * Start an object iteration. + * Checks whether the value is a negative number. * - * @returns Whether the object had any fields (returns false for empty). - * @error INCORRECT_TYPE if there is no opening { + * @returns true if the number if negative. */ - simdjson_warn_unused simdjson_inline simdjson_result start_object() noexcept; + simdjson_inline bool is_negative() noexcept; /** - * Start an object iteration from the root. + * Checks whether the value is an integer number. Note that + * this requires to partially parse the number string. If + * the value is determined to be an integer, it may still + * not parse properly as an integer in subsequent steps + * (e.g., it might overflow). * - * @returns Whether the object had any fields (returns false for empty). - * @error INCORRECT_TYPE if there is no opening { - * @error TAPE_ERROR if there is no matching } at end of document - */ - simdjson_warn_unused simdjson_inline simdjson_result start_root_object() noexcept; - /** - * Checks whether an object could be started from the root. May be called by start_root_object. + * Performance note: if you call this function systematically + * before parsing a number, you may have fallen for a performance + * anti-pattern. * - * @returns SUCCESS if it is possible to safely start an object from the root (document level). - * @error INCORRECT_TYPE if there is no opening { - * @error TAPE_ERROR if there is no matching } at end of document + * @returns true if the number if negative. */ - simdjson_warn_unused simdjson_inline error_code check_root_object() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; /** - * Start an object iteration after the user has already checked and moved past the {. + * Determine the number type (integer or floating-point number) as quickly + * as possible. This function does not fully validate the input. It is + * useful when you only need to classify the numbers, without parsing them. * - * Does not move the iterator unless the object is empty ({}). + * If you are planning to retrieve the value or you need full validation, + * consider using the get_number() method instead: it will fully parse + * and validate the input, and give you access to the type: + * get_number().get_number_type(). * - * @returns Whether the object had any fields (returns false for empty). - * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* - * array or object is incomplete). - */ - simdjson_warn_unused simdjson_inline simdjson_result started_object() noexcept; - /** - * Start an object iteration from the root, after the user has already checked and moved past the {. + * get_number_type() is number_type::unsigned_integer if we have + * an integer greater or equal to 9223372036854775808 + * get_number_type() is number_type::signed_integer if we have an + * integer that is less than 9223372036854775808 + * Otherwise, get_number_type() has value number_type::floating_point_number * - * Does not move the iterator unless the object is empty ({}). + * This function requires processing the number string, but it is expected + * to be faster than get_number().get_number_type() because it is does not + * parse the number value. * - * @returns Whether the object had any fields (returns false for empty). - * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* - * array or object is incomplete). + * @returns the type of the number */ - simdjson_warn_unused simdjson_inline simdjson_result started_root_object() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; /** - * Moves to the next field in an object. + * Attempt to parse an ondemand::number. An ondemand::number may + * contain an integer value or a floating-point value, the simdjson + * library will autodetect the type. Thus it is a dynamically typed + * number. Before accessing the value, you must determine the detected + * type. * - * Looks for , and }. If } is found, the object is finished and the iterator advances past it. - * Otherwise, it advances to the next value. + * number.get_number_type() is number_type::signed_integer if we have + * an integer in [-9223372036854775808,9223372036854775808) + * You can recover the value by calling number.get_int64() and you + * have that number.is_int64() is true. * - * @return whether there is another field in the object. - * @error TAPE_ERROR If there is a comma missing between fields. - * @error TAPE_ERROR If there is a comma, but not enough tokens remaining to have a key, :, and value. + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. + * + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. + * + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. + * + * Performance note: this is designed with performance in mind. When + * calling 'get_number()', you scan the number string only once, determining + * efficiently the type and storing it in an efficient manner. */ - simdjson_warn_unused simdjson_inline simdjson_result has_next_field() noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + /** - * Get the current field's key. + * Get the raw JSON for this token. + * + * The string_view will always point into the input buffer. + * + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. + * + * The string_view is *not* null-terminated. However, if this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view is guaranteed to be + * a non-space token. + * + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null */ - simdjson_warn_unused simdjson_inline simdjson_result field_key() noexcept; + simdjson_inline std::string_view raw_json_token() noexcept; /** - * Pass the : in the field and move to its value. + * Returns the current location in the document if in bounds. */ - simdjson_warn_unused simdjson_inline error_code field_value() noexcept; + simdjson_inline simdjson_result current_location() noexcept; /** - * Find the next field with the given key. - * - * Assumes you have called next_field() or otherwise matched the previous value. - * - * This means the iterator must be sitting at the next key: - * - * ``` - * { "a": 1, "b": 2 } - * ^ - * ``` + * Returns the current depth in the document if in bounds. * - * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to - * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may - * fail to match some keys with escapes (\u, \n, etc.). + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. */ - simdjson_warn_unused simdjson_inline error_code find_field(const std::string_view key) noexcept; + simdjson_inline int32_t current_depth() const noexcept; /** - * Find the next field with the given key, *without* unescaping. This assumes object order: it - * will not find the field if it was already passed when looking for some *other* field. + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. * - * Assumes you have called next_field() or otherwise matched the previous value. + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 * - * This means the iterator must be sitting at the next key: + * It is allowed for a key to be the empty string: * - * ``` - * { "a": 1, "b": 2 } - * ^ - * ``` + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 * - * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to - * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may - * fail to match some keys with escapes (\u, \n, etc.). - */ - simdjson_warn_unused simdjson_inline simdjson_result find_field_raw(const std::string_view key) noexcept; - - /** - * Find the field with the given key without regard to order, and *without* unescaping. + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. * - * This is an unordered object lookup: if the field is not found initially, it will cycle around and scan from the beginning. + * Calling at_pointer() on non-document instances (e.g., arrays and objects) is not + * standardized (by RFC 6901). We provide some experimental support for JSON pointers + * on non-document instances. Yet it is not the case when calling at_pointer on an array + * or an object instance: there is no rewind and no invalidation. * - * Assumes you have called next_field() or otherwise matched the previous value. + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. * - * This means the iterator must be sitting at the next key: + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. * - * ``` - * { "a": 1, "b": 2 } - * ^ - * ``` + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching * - * Key is *raw JSON,* meaning it will be matched against the verbatim JSON without attempting to - * unescape it. This works well for typical ASCII and UTF-8 keys (almost all of them), but may - * fail to match some keys with escapes (\u, \n, etc.). + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed */ - simdjson_warn_unused simdjson_inline simdjson_result find_field_unordered_raw(const std::string_view key) noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; - /** @} */ +protected: + /** + * Create a value. + */ + simdjson_inline value(const value_iterator &iter) noexcept; /** - * @addtogroup array Array iteration - * Methods to iterate over array elements. These methods generally *assume* the value is actually - * an object; the caller is responsible for keeping track of that fact. - * @{ + * Skip this value, allowing iteration to continue. */ + simdjson_inline void skip() noexcept; /** - * Check for an opening [ and start an array iteration. + * Start a value at the current position. * - * @returns Whether the array had any elements (returns false for empty). - * @error INCORRECT_TYPE If there is no [. + * (It should already be started; this is just a self-documentation method.) */ - simdjson_warn_unused simdjson_inline simdjson_result start_array() noexcept; + static simdjson_inline value start(const value_iterator &iter) noexcept; + /** - * Check for an opening [ and start an array iteration while at the root. - * - * @returns Whether the array had any elements (returns false for empty). - * @error INCORRECT_TYPE If there is no [. - * @error TAPE_ERROR if there is no matching ] at end of document + * Resume a value. */ - simdjson_warn_unused simdjson_inline simdjson_result start_root_array() noexcept; + static simdjson_inline value resume(const value_iterator &iter) noexcept; + /** - * Checks whether an array could be started from the root. May be called by start_root_array. - * - * @returns SUCCESS if it is possible to safely start an array from the root (document level). - * @error INCORRECT_TYPE If there is no [. - * @error TAPE_ERROR if there is no matching ] at end of document + * Get the object, starting or resuming it as necessary */ - simdjson_warn_unused simdjson_inline error_code check_root_array() noexcept; + simdjson_inline simdjson_result start_or_resume_object() noexcept; + + // simdjson_inline void log_value(const char *type) const noexcept; + // simdjson_inline void log_error(const char *message) const noexcept; + + value_iterator iter{}; + + friend class document; + friend class array_iterator; + friend class field; + friend class object; + friend struct simdjson_result; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public westmere::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(westmere::ondemand::value &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result get_array() noexcept; + simdjson_inline simdjson_result get_object() noexcept; + + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + + template simdjson_inline simdjson_result get() noexcept; + + template simdjson_inline error_code get(T &out) noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator westmere::ondemand::array() noexcept(false); + simdjson_inline operator westmere::ondemand::object() noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator westmere::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + /** - * Start an array iteration, after the user has already checked and moved past the [. + * Look up a field by name on an object (order-sensitive). * - * Does not move the iterator unless the array is empty ([]). + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: * - * @returns Whether the array had any elements (returns false for empty). - * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* - * array or object is incomplete). - */ - simdjson_warn_unused simdjson_inline simdjson_result started_array() noexcept; - /** - * Start an array iteration from the root, after the user has already checked and moved past the [. + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` * - * Does not move the iterator unless the array is empty ([]). + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. * - * @returns Whether the array had any elements (returns false for empty). - * @error INCOMPLETE_ARRAY_OR_OBJECT If there are no more tokens (implying the *parent* - * array or object is incomplete). + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. */ - simdjson_warn_unused simdjson_inline simdjson_result started_root_array() noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) noexcept; /** - * Moves to the next element in an array. + * Look up a field by name on an object, without regard to key order. * - * Looks for , and ]. If ] is found, the array is finished and the iterator advances past it. - * Otherwise, it advances to the next value. + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. * - * @return Whether there is another element in the array. - * @error TAPE_ERROR If there is a comma missing between elements. + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. */ - simdjson_warn_unused simdjson_inline simdjson_result has_next_element() noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) noexcept; /** - * Get a child value iterator. + * Get the type of this JSON value. + * + * NOTE: If you're only expecting a value to be one type (a typical case), it's generally + * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just + * let it throw an exception). */ - simdjson_warn_unused simdjson_inline value_iterator child() const noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; - /** @} */ + /** @copydoc simdjson_inline std::string_view value::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; - /** - * @defgroup scalar Scalar values - * @addtogroup scalar - * @{ - */ + /** @copydoc simdjson_inline simdjson_result current_location() noexcept */ + simdjson_inline simdjson_result current_location() noexcept; + /** @copydoc simdjson_inline int32_t current_depth() const noexcept */ + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +}; - simdjson_warn_unused simdjson_inline simdjson_result get_string(bool allow_replacement) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_wobbly_string() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_raw_json_string() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_uint64() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_uint64_in_string() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_int64() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_int64_in_string() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_double() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_double_in_string() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_bool() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result is_null() noexcept; - simdjson_warn_unused simdjson_inline bool is_negative() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result is_integer() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_number_type() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; +} // namespace simdjson - simdjson_warn_unused simdjson_inline simdjson_result get_root_string(bool check_trailing, bool allow_replacement) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_wobbly_string(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_raw_json_string(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_uint64_in_string(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_int64(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_int64_in_string(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_double(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_double_in_string(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_bool(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline bool is_root_negative() noexcept; - simdjson_warn_unused simdjson_inline simdjson_result is_root_integer(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_number_type(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result get_root_number(bool check_trailing) noexcept; - simdjson_warn_unused simdjson_inline simdjson_result is_root_null(bool check_trailing) noexcept; +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_H +/* end file simdjson/generic/ondemand/value.h for westmere */ +/* including simdjson/generic/ondemand/logger.h for westmere: #include "simdjson/generic/ondemand/logger.h" */ +/* begin file simdjson/generic/ondemand/logger.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_H - simdjson_inline error_code error() const noexcept; - simdjson_inline uint8_t *&string_buf_loc() noexcept; - simdjson_inline const json_iterator &json_iter() const noexcept; - simdjson_inline json_iterator &json_iter() noexcept; +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +// Logging should be free unless SIMDJSON_VERBOSE_LOGGING is set. Importantly, it is critical +// that the call to the log functions be side-effect free. Thus, for example, you should not +// create temporary std::string instances. +namespace logger { + +enum class log_level : int32_t { + info = 0, + error = 1 +}; + +#if SIMDJSON_VERBOSE_LOGGING + static constexpr const bool LOG_ENABLED = true; +#else + static constexpr const bool LOG_ENABLED = false; +#endif + +// We do not want these functions to be 'really inlined' since real inlining is +// for performance purposes and if you are using the loggers, you do not care about +// performance (or should not). +static inline void log_headers() noexcept; +// If args are provided, title will be treated as format string +template +static inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +template +static inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; +static inline void log_event(const json_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_value(const json_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail="") noexcept; +static inline void log_start_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const json_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; + +static inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail="") noexcept; +static inline void log_error(const json_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +static inline void log_event(const value_iterator &iter, const char *type, std::string_view detail="", int delta=0, int depth_delta=0) noexcept; +static inline void log_value(const value_iterator &iter, const char *type, std::string_view detail="", int delta=-1, int depth_delta=0) noexcept; +static inline void log_start_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_end_value(const value_iterator &iter, const char *type, int delta=-1, int depth_delta=0) noexcept; +static inline void log_error(const value_iterator &iter, const char *error, const char *detail="", int delta=-1, int depth_delta=0) noexcept; + +} // namespace logger +} // namespace ondemand +} // namespace westmere +} // namespace simdjson - simdjson_inline void assert_is_valid() const noexcept; - simdjson_inline bool is_valid() const noexcept; +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_H +/* end file simdjson/generic/ondemand/logger.h for westmere */ +/* including simdjson/generic/ondemand/token_iterator.h for westmere: #include "simdjson/generic/ondemand/token_iterator.h" */ +/* begin file simdjson/generic/ondemand/token_iterator.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H - /** @} */ -protected: +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +/** + * Iterates through JSON tokens (`{` `}` `[` `]` `,` `:` `""` `123` `true` `false` `null`) + * detected by stage 1. + * + * @private This is not intended for external use. + */ +class token_iterator { +public: /** - * Restarts an array iteration. - * @returns Whether the array has any elements (returns false for empty). + * Create a new invalid token_iterator. + * + * Exists so you can declare a variable and later assign to it before use. */ - simdjson_inline simdjson_result reset_array() noexcept; + simdjson_inline token_iterator() noexcept = default; + simdjson_inline token_iterator(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator &operator=(token_iterator &&other) noexcept = default; + simdjson_inline token_iterator(const token_iterator &other) noexcept = default; + simdjson_inline token_iterator &operator=(const token_iterator &other) noexcept = default; + /** - * Restarts an object iteration. - * @returns Whether the object has any fields (returns false for empty). + * Advance to the next token (returning the current one). */ - simdjson_inline simdjson_result reset_object() noexcept; + simdjson_inline const uint8_t *return_current_and_advance() noexcept; /** - * move_at_start(): moves us so that we are pointing at the beginning of - * the container. It updates the index so that at_start() is true and it - * syncs the depth. The user can then create a new container instance. + * Reports the current offset in bytes from the start of the underlying buffer. + */ + simdjson_inline uint32_t current_offset() const noexcept; + /** + * Get the JSON text for a given token (relative). * - * Usage: used with value::count_elements(). - **/ - simdjson_inline void move_at_start() noexcept; - + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; /** - * move_at_container_start(): moves us so that we are pointing at the beginning of - * the container so that assert_at_container_start() passes. + * Get the maximum length of the JSON text for a given token. * - * Usage: used with reset_array() and reset_object(). - **/ - simdjson_inline void move_at_container_start() noexcept; - /* Useful for debugging and logging purposes. */ - inline std::string to_string() const noexcept; - simdjson_inline value_iterator(json_iterator *json_iter, depth_t depth, token_position start_index) noexcept; - - simdjson_inline simdjson_result parse_null(const uint8_t *json) const noexcept; - simdjson_inline simdjson_result parse_bool(const uint8_t *json) const noexcept; - simdjson_inline const uint8_t *peek_start() const noexcept; - simdjson_inline uint32_t peek_start_length() const noexcept; + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; /** - * The general idea of the advance_... methods and the peek_* methods - * is that you first peek and check that you have desired type. If you do, - * and only if you do, then you advance. - * - * We used to unconditionally advance. But this made reasoning about our - * current state difficult. - * Suppose you always advance. Look at the 'value' matching the key - * "shadowable" in the following example... + * Get the JSON text for a given token. * - * ({"globals":{"a":{"shadowable":[}}}}) + * This is not null-terminated; it is a view into the JSON. * - * If the user thinks it is a Boolean and asks for it, then we check the '[', - * decide it is not a Boolean, but still move into the next character ('}'). Now - * we are left pointing at '}' right after a '['. And we have not yet reported - * an error, only that we do not have a Boolean. + * @param position The position of the token. * - * If, instead, you just stand your ground until it is content that you know, then - * you will only even move beyond the '[' if the user tells you that you have an - * array. So you will be at the '}' character inside the array and, hopefully, you - * will then catch the error because an array cannot start with '}', but the code - * processing Boolean values does not know this. + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for a given token. * - * So the contract is: first call 'peek_...' and then call 'advance_...' only - * if you have determined that it is a type you can handle. + * The length will include any whitespace at the end of the token. * - * Unfortunately, it makes the code more verbose, longer and maybe more error prone. + * @param position The position of the token. */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; - simdjson_inline void advance_scalar(const char *type) noexcept; - simdjson_inline void advance_root_scalar(const char *type) noexcept; - simdjson_inline void advance_non_root_scalar(const char *type) noexcept; + /** + * Return the current index. + */ + simdjson_inline token_position position() const noexcept; + /** + * Reset to a previously saved index. + */ + simdjson_inline void set_position(token_position target_position) noexcept; - simdjson_inline const uint8_t *peek_scalar(const char *type) noexcept; - simdjson_inline const uint8_t *peek_root_scalar(const char *type) noexcept; - simdjson_inline const uint8_t *peek_non_root_scalar(const char *type) noexcept; + // NOTE: we don't support a full C++ iterator interface, because we expect people to make + // different calls to advance the iterator based on *their own* state. + simdjson_inline bool operator==(const token_iterator &other) const noexcept; + simdjson_inline bool operator!=(const token_iterator &other) const noexcept; + simdjson_inline bool operator>(const token_iterator &other) const noexcept; + simdjson_inline bool operator>=(const token_iterator &other) const noexcept; + simdjson_inline bool operator<(const token_iterator &other) const noexcept; + simdjson_inline bool operator<=(const token_iterator &other) const noexcept; - simdjson_inline error_code start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept; - simdjson_inline error_code end_container() noexcept; +protected: + simdjson_inline token_iterator(const uint8_t *buf, token_position position) noexcept; /** - * Advance to a place expecting a value (increasing depth). + * Get the index of the JSON text for a given token (relative). * - * @return The current token (the one left behind). - * @error TAPE_ERROR If the document ended early. - */ - simdjson_inline simdjson_result advance_to_value() noexcept; - - simdjson_inline error_code incorrect_type_error(const char *message) const noexcept; - simdjson_inline error_code error_unless_more_tokens(uint32_t tokens=1) const noexcept; - - simdjson_inline bool is_at_start() const noexcept; - /** - * is_at_iterator_start() returns true on an array or object after it has just been - * created, whether the instance is empty or not. + * This is not null-terminated; it is a view into the JSON. * - * Usage: used by array::begin() in debug mode (SIMDJSON_DEVELOPMENT_CHECKS) + * @param delta The relative position of the token to retrieve. e.g. 0 = current token, + * 1 = next token, -1 = prev token. */ - simdjson_inline bool is_at_iterator_start() const noexcept; - + simdjson_inline uint32_t peek_index(int32_t delta=0) const noexcept; /** - * Assuming that we are within an object, this returns true if we - * are pointing at a key. + * Get the index of the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token. * - * Usage: the skip_child() method should never be used while we are pointing - * at a key inside an object. */ - simdjson_inline bool is_at_key() const noexcept; - - inline void assert_at_start() const noexcept; - inline void assert_at_container_start() const noexcept; - inline void assert_at_root() const noexcept; - inline void assert_at_child() const noexcept; - inline void assert_at_next() const noexcept; - inline void assert_at_non_root_start() const noexcept; - - /** Get the starting position of this value */ - simdjson_inline token_position start_position() const noexcept; + simdjson_inline uint32_t peek_index(token_position position) const noexcept; - /** @copydoc error_code json_iterator::position() const noexcept; */ - simdjson_inline token_position position() const noexcept; - /** @copydoc error_code json_iterator::end_position() const noexcept; */ - simdjson_inline token_position last_position() const noexcept; - /** @copydoc error_code json_iterator::end_position() const noexcept; */ - simdjson_inline token_position end_position() const noexcept; - /** @copydoc error_code json_iterator::report_error(error_code error, const char *message) noexcept; */ - simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + const uint8_t *buf{}; + token_position _position{}; - friend class document; + friend class json_iterator; + friend class value_iterator; friend class object; - friend class array; - friend class value; -}; // value_iterator + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +struct simdjson_result : public westmere::implementation_simdjson_result_base { public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(westmere::ondemand::token_iterator &&value) noexcept; ///< @private simdjson_inline simdjson_result(error_code error) noexcept; ///< @private simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private }; } // namespace simdjson -/* end file include/simdjson/generic/ondemand/value_iterator.h */ -/* begin file include/simdjson/generic/ondemand/array_iterator.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_H +/* end file simdjson/generic/ondemand/token_iterator.h for westmere */ +/* including simdjson/generic/ondemand/json_iterator.h for westmere: #include "simdjson/generic/ondemand/json_iterator.h" */ +/* begin file simdjson/generic/ondemand/json_iterator.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -class array; -class value; -class document; - /** - * A forward-only JSON array. + * Iterates through JSON tokens, keeping track of depth and string buffer. * - * This is an input_iterator, meaning: - * - It is forward-only - * - * must be called exactly once per element. - * - ++ must be called exactly once in between each * (*, ++, *, ++, * ...) + * @private This is not intended for external use. */ -class array_iterator { -public: - /** Create a new, invalid array iterator. */ - simdjson_inline array_iterator() noexcept = default; - - // - // Iterator interface - // - +class json_iterator { +protected: + token_iterator token{}; + ondemand::parser *parser{}; /** - * Get the current element. + * Next free location in the string buffer. * - * Part of the std::iterator interface. + * Used by raw_json_string::unescape() to have a place to unescape strings to. */ - simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + uint8_t *_string_buf_loc{}; /** - * Check if we are at the end of the JSON. + * JSON error, if there is one. * - * Part of the std::iterator interface. + * INCORRECT_TYPE and NO_SUCH_FIELD are *not* stored here, ever. * - * @return true if there are no more elements in the JSON array. + * PERF NOTE: we *hope* this will be elided into control flow, as it is only used (a) in the first + * iteration of the loop, or (b) for the final iteration after a missing comma is found in ++. If + * this is not elided, we should make sure it's at least not using up a register. Failing that, + * we should store it in document so there's only one of them. */ - simdjson_inline bool operator==(const array_iterator &) const noexcept; + error_code error{SUCCESS}; /** - * Check if there are more elements in the JSON array. - * - * Part of the std::iterator interface. + * Depth of the current token in the JSON. * - * @return true if there are more elements in the JSON array. + * - 0 = finished with document + * - 1 = document root value (could be [ or {, not yet known) + * - 2 = , or } inside root array/object + * - 3 = key or value inside root array/object. */ - simdjson_inline bool operator!=(const array_iterator &) const noexcept; + depth_t _depth{}; /** - * Move to the next element. - * - * Part of the std::iterator interface. + * Beginning of the document indexes. + * Normally we have root == parser->implementation->structural_indexes.get() + * but this may differ, especially in streaming mode (where we have several + * documents); */ - simdjson_inline array_iterator &operator++() noexcept; + token_position _root{}; + /** + * Normally, a json_iterator operates over a single document, but in + * some cases, we may have a stream of documents. This attribute is meant + * as meta-data: the json_iterator works the same irrespective of the + * value of this attribute. + */ + bool _streaming{false}; -private: - value_iterator iter{}; +public: + simdjson_inline json_iterator() noexcept = default; + simdjson_inline json_iterator(json_iterator &&other) noexcept; + simdjson_inline json_iterator &operator=(json_iterator &&other) noexcept; + simdjson_inline explicit json_iterator(const json_iterator &other) noexcept = default; + simdjson_inline json_iterator &operator=(const json_iterator &other) noexcept = default; + /** + * Skips a JSON value, whether it is a scalar, array or object. + */ + simdjson_warn_unused simdjson_inline error_code skip_child(depth_t parent_depth) noexcept; - simdjson_inline array_iterator(const value_iterator &iter) noexcept; + /** + * Tell whether the iterator is still at the start + */ + simdjson_inline bool at_root() const noexcept; - friend class array; - friend class value; - friend struct simdjson_result; -}; + /** + * Tell whether we should be expected to run in streaming + * mode (iterating over many documents). It is pure metadata + * that does not affect how the iterator works. It is used by + * start_root_array() and start_root_object(). + */ + simdjson_inline bool streaming() const noexcept; -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson + /** + * Get the root value iterator + */ + simdjson_inline token_position root_position() const noexcept; + /** + * Assert that we are at the document depth (== 1) + */ + simdjson_inline void assert_at_document_depth() const noexcept; + /** + * Assert that we are at the root of the document + */ + simdjson_inline void assert_at_root() const noexcept; -namespace simdjson { + /** + * Tell whether the iterator is at the EOF mark + */ + simdjson_inline bool at_end() const noexcept; -template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { -public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array_iterator &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - simdjson_inline simdjson_result() noexcept = default; + /** + * Tell whether the iterator is live (has not been moved). + */ + simdjson_inline bool is_alive() const noexcept; - // - // Iterator interface - // + /** + * Abandon this iterator, setting depth to 0 (as if the document is finished). + */ + simdjson_inline void abandon() noexcept; - simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. - simdjson_inline bool operator==(const simdjson_result &) const noexcept; - simdjson_inline bool operator!=(const simdjson_result &) const noexcept; - simdjson_inline simdjson_result &operator++() noexcept; -}; + /** + * Advance the current token without modifying depth. + */ + simdjson_inline const uint8_t *return_current_and_advance() noexcept; -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/array_iterator.h */ -/* begin file include/simdjson/generic/ondemand/object_iterator.h */ + /** + * Returns true if there is a single token in the index (i.e., it is + * a JSON with a scalar value such as a single number). + * + * @return whether there is a single token + */ + simdjson_inline bool is_single_token() const noexcept; -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { + /** + * Assert that there are at least the given number of tokens left. + * + * Has no effect in release builds. + */ + simdjson_inline void assert_more_tokens(uint32_t required_tokens=1) const noexcept; + /** + * Assert that the given position addresses an actual token (is within bounds). + * + * Has no effect in release builds. + */ + simdjson_inline void assert_valid_position(token_position position) const noexcept; + /** + * Get the JSON text for a given token (relative). + * + * This is not null-terminated; it is a view into the JSON. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(int32_t delta=0) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param delta The relative position of the token to retrieve. e.g. 0 = next token, -1 = prev token. + */ + simdjson_inline uint32_t peek_length(int32_t delta=0) const noexcept; + /** + * Get a pointer to the current location in the input buffer. + * + * This is not null-terminated; it is a view into the JSON. + * + * You may be pointing outside of the input buffer: it is not generally + * safe to dereference this pointer. + */ + simdjson_inline const uint8_t *unsafe_pointer() const noexcept; + /** + * Get the JSON text for a given token. + * + * This is not null-terminated; it is a view into the JSON. + * + * @param position The position of the token to retrieve. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek(token_position position) const noexcept; + /** + * Get the maximum length of the JSON text for the current token (or relative). + * + * The length will include any whitespace at the end of the token. + * + * @param position The position of the token to retrieve. + */ + simdjson_inline uint32_t peek_length(token_position position) const noexcept; + /** + * Get the JSON text for the last token in the document. + * + * This is not null-terminated; it is a view into the JSON. + * + * TODO consider a string_view, assuming the length will get stripped out by the optimizer when + * it isn't used ... + */ + simdjson_inline const uint8_t *peek_last() const noexcept; -class field; + /** + * Ascend one level. + * + * Validates that the depth - 1 == parent_depth. + * + * @param parent_depth the expected parent depth. + */ + simdjson_inline void ascend_to(depth_t parent_depth) noexcept; -class object_iterator { -public: /** - * Create a new invalid object_iterator. + * Descend one level. * - * Exists so you can declare a variable and later assign to it before use. + * Validates that the new depth == child_depth. + * + * @param child_depth the expected child depth. */ - simdjson_inline object_iterator() noexcept = default; + simdjson_inline void descend_to(depth_t child_depth) noexcept; + simdjson_inline void descend_to(depth_t child_depth, int32_t delta) noexcept; - // - // Iterator interface - // + /** + * Get current depth. + */ + simdjson_inline depth_t depth() const noexcept; - // Reads key and value, yielding them to the user. - // MUST ONLY BE CALLED ONCE PER ITERATION. - simdjson_inline simdjson_result operator*() noexcept; - // Assumes it's being compared with the end. true if depth < iter->depth. - simdjson_inline bool operator==(const object_iterator &) const noexcept; - // Assumes it's being compared with the end. true if depth >= iter->depth. - simdjson_inline bool operator!=(const object_iterator &) const noexcept; - // Checks for ']' and ',' - simdjson_inline object_iterator &operator++() noexcept; + /** + * Get current (writeable) location in the string buffer. + */ + simdjson_inline uint8_t *&string_buf_loc() noexcept; -private: /** - * The underlying JSON iterator. + * Report an unrecoverable error, preventing further iteration. * - * PERF NOTE: expected to be elided in favor of the parent document: this is set when the object - * is first used, and never changes afterwards. + * @param error The error to report. Must not be SUCCESS, UNINITIALIZED, INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. */ - value_iterator iter{}; + simdjson_inline error_code report_error(error_code error, const char *message) noexcept; + + /** + * Log error, but don't stop iteration. + * @param error The error to report. Must be INCORRECT_TYPE, or NO_SUCH_FIELD. + * @param message An error message to report with the error. + */ + simdjson_inline error_code optional_error(error_code error, const char *message) noexcept; + + /** + * Take an input in json containing max_len characters and attempt to copy it over to tmpbuf, a buffer with + * N bytes of capacity. It will return false if N is too small (smaller than max_len) of if it is zero. + * The buffer (tmpbuf) is padded with space characters. + */ + simdjson_warn_unused simdjson_inline bool copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept; + + simdjson_inline token_position position() const noexcept; + /** + * Write the raw_json_string to the string buffer and return a string_view. + * Each raw_json_string should be unescaped once, or else the string buffer might + * overflow. + */ + simdjson_inline simdjson_result unescape(raw_json_string in, bool allow_replacement) noexcept; + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in) noexcept; + simdjson_inline void reenter_child(token_position position, depth_t child_depth) noexcept; + + simdjson_inline error_code consume_character(char c) noexcept; +#if SIMDJSON_DEVELOPMENT_CHECKS + simdjson_inline token_position start_position(depth_t depth) const noexcept; + simdjson_inline void set_start_position(depth_t depth, token_position position) noexcept; +#endif + + /* Useful for debugging and logging purposes. */ + inline std::string to_string() const noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Updates this json iterator so that it is back at the beginning of the document, + * as if it had just been created. + */ + inline void rewind() noexcept; + /** + * This checks whether the {,},[,] are balanced so that the document + * ends with proper zero depth. This requires scanning the whole document + * and it may be expensive. It is expected that it will be rarely called. + * It does not attempt to match { with } and [ with ]. + */ + inline bool balanced() const noexcept; +protected: + simdjson_inline json_iterator(const uint8_t *buf, ondemand::parser *parser) noexcept; + /// The last token before the end + simdjson_inline token_position last_position() const noexcept; + /// The token *at* the end. This points at gibberish and should only be used for comparison. + simdjson_inline token_position end_position() const noexcept; + /// The end of the buffer. + simdjson_inline token_position end() const noexcept; - simdjson_inline object_iterator(const value_iterator &iter) noexcept; - friend struct simdjson_result; + friend class document; + friend class document_stream; friend class object; -}; + friend class array; + friend class value; + friend class raw_json_string; + friend class parser; + friend class value_iterator; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, logger::log_level level, Args&&... args) noexcept; + template + friend simdjson_inline void logger::log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, logger::log_level level, Args&&... args) noexcept; +}; // json_iterator } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +struct simdjson_result : public westmere::implementation_simdjson_result_base { public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(westmere::ondemand::json_iterator &&value) noexcept; ///< @private simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - simdjson_inline simdjson_result() noexcept = default; - - // - // Iterator interface - // - // Reads key and value, yielding them to the user. - simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. - // Assumes it's being compared with the end. true if depth < iter->depth. - simdjson_inline bool operator==(const simdjson_result &) const noexcept; - // Assumes it's being compared with the end. true if depth >= iter->depth. - simdjson_inline bool operator!=(const simdjson_result &) const noexcept; - // Checks for ']' and ',' - simdjson_inline simdjson_result &operator++() noexcept; + simdjson_inline simdjson_result() noexcept = default; }; } // namespace simdjson -/* end file include/simdjson/generic/ondemand/object_iterator.h */ -/* begin file include/simdjson/generic/ondemand/array.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_H +/* end file simdjson/generic/ondemand/json_iterator.h for westmere */ +/* including simdjson/generic/ondemand/json_type.h for westmere: #include "simdjson/generic/ondemand/json_type.h" */ +/* begin file simdjson/generic/ondemand/json_type.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -class value; -class document; +/** + * The type of a JSON value. + */ +enum class json_type { + // Start at 1 to catch uninitialized / default values more easily + array=1, ///< A JSON array ( [ 1, 2, 3 ... ] ) + object, ///< A JSON object ( { "a": 1, "b" 2, ... } ) + number, ///< A JSON number ( 1 or -2.3 or 4.5e6 ...) + string, ///< A JSON string ( "a" or "hello world\n" ...) + boolean, ///< A JSON boolean (true or false) + null ///< A JSON null (null) +}; /** - * A forward-only JSON array. + * A type representing a JSON number. + * The design of the struct is deliberately straight-forward. All + * functions return standard values with no error check. */ -class array { -public: - /** - * Create a new invalid array. - * - * Exists so you can declare a variable and later assign to it before use. - */ - simdjson_inline array() noexcept = default; +struct number { /** - * Begin array iteration. - * - * Part of the std::iterable interface. - */ - simdjson_inline simdjson_result begin() noexcept; - /** - * Sentinel representing the end of the array. - * - * Part of the std::iterable interface. - */ - simdjson_inline simdjson_result end() noexcept; - /** - * This method scans the array and counts the number of elements. - * The count_elements method should always be called before you have begun - * iterating through the array: it is expected that you are pointing at - * the beginning of the array. - * The runtime complexity is linear in the size of the array. After - * calling this function, if successful, the array is 'rewinded' at its - * beginning as if it had never been accessed. If the JSON is malformed (e.g., - * there is a missing comma), then an error is returned and it is no longer - * safe to continue. + * return the automatically determined type of + * the number: number_type::floating_point_number, + * number_type::signed_integer or number_type::unsigned_integer. * - * To check that an array is empty, it is more performant to use - * the is_empty() method. + * enum class number_type { + * floating_point_number=1, /// a binary64 number + * signed_integer, /// a signed integer that fits in a 64-bit word using two's complement + * unsigned_integer /// a positive integer larger or equal to 1<<63 + * }; */ - simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline ondemand::number_type get_number_type() const noexcept; /** - * This method scans the beginning of the array and checks whether the - * array is empty. - * The runtime complexity is constant time. After - * calling this function, if successful, the array is 'rewinded' at its - * beginning as if it had never been accessed. If the JSON is malformed (e.g., - * there is a missing comma), then an error is returned and it is no longer - * safe to continue. + * return true if the automatically determined type of + * the number is number_type::unsigned_integer. */ - simdjson_inline simdjson_result is_empty() & noexcept; + simdjson_inline bool is_uint64() const noexcept; /** - * Reset the iterator so that we are pointing back at the - * beginning of the array. You should still consume values only once even if you - * can iterate through the array more than once. If you unescape a string - * within the array more than once, you have unsafe code. Note that rewinding - * an array means that you may need to reparse it anew: it is not a free - * operation. - * - * @returns true if the array contains some elements (not empty) + * return the value as a uint64_t, only valid if is_uint64() is true. */ - inline simdjson_result reset() & noexcept; + simdjson_inline uint64_t get_uint64() const noexcept; + simdjson_inline operator uint64_t() const noexcept; + /** - * Get the value associated with the given JSON pointer. We use the RFC 6901 - * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node - * as the root of its own JSON document. - * - * ondemand::parser parser; - * auto json = R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded; - * auto doc = parser.iterate(json); - * doc.at_pointer("/0/foo/a/1") == 20 - * - * Note that at_pointer() called on the document automatically calls the document's rewind - * method between each call. It invalidates all previously accessed arrays, objects and values - * that have not been consumed. Yet it is not the case when calling at_pointer on an array - * instance: there is no rewind and no invalidation. - * - * You may only call at_pointer on an array after it has been created, but before it has - * been first accessed. When calling at_pointer on an array, the pointer is advanced to - * the location indicated by the JSON pointer (in case of success). It is no longer possible - * to call at_pointer on the same array. - * - * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. - * - * @return The value associated with the given JSON pointer, or: - * - NO_SUCH_FIELD if a field does not exist in an object - * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length - * - INCORRECT_TYPE if a non-integer is used to access an array - * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + * return true if the automatically determined type of + * the number is number_type::signed_integer. */ - inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + simdjson_inline bool is_int64() const noexcept; /** - * Consumes the array and returns a string_view instance corresponding to the - * array as represented in JSON. It points inside the original document. + * return the value as a int64_t, only valid if is_int64() is true. */ - simdjson_inline simdjson_result raw_json() noexcept; + simdjson_inline int64_t get_int64() const noexcept; + simdjson_inline operator int64_t() const noexcept; + /** - * Get the value at the given index. This function has linear-time complexity. - * This function should only be called once on an array instance since the array iterator is not reset between each call. - * - * @return The value at the given index, or: - * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + * return true if the automatically determined type of + * the number is number_type::floating_point_number. */ - simdjson_inline simdjson_result at(size_t index) noexcept; -protected: + simdjson_inline bool is_double() const noexcept; /** - * Go to the end of the array, no matter where you are right now. + * return the value as a double, only valid if is_double() is true. */ - simdjson_inline error_code consume() noexcept; + simdjson_inline double get_double() const noexcept; + simdjson_inline operator double() const noexcept; /** - * Begin array iteration. - * - * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the - * resulting array. - * @error INCORRECT_TYPE if the iterator is not at [. + * Convert the number to a double. Though it always succeed, the conversion + * may be lossy if the number cannot be represented exactly. */ - static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + simdjson_inline double as_double() const noexcept; + + +protected: /** - * Begin array iteration from the root. - * - * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the - * resulting array. - * @error INCORRECT_TYPE if the iterator is not at [. - * @error TAPE_ERROR if there is no closing ] at the end of the document. + * The next block of declaration is designed so that we can call the number parsing + * functions on a number type. They are protected and should never be used outside + * of the core simdjson library. */ - static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + friend class value_iterator; + template + friend error_code numberparsing::slow_float_parsing(simdjson_unused const uint8_t * src, W writer); + template + friend error_code numberparsing::write_float(const uint8_t *const src, bool negative, uint64_t i, const uint8_t * start_digits, size_t digit_count, int64_t exponent, W &writer); + template + friend error_code numberparsing::parse_number(const uint8_t *const src, W &writer); + /** Store a signed 64-bit value to the number. */ + simdjson_inline void append_s64(int64_t value) noexcept; + /** Store an unsigned 64-bit value to the number. */ + simdjson_inline void append_u64(uint64_t value) noexcept; + /** Store a double value to the number. */ + simdjson_inline void append_double(double value) noexcept; + /** Specifies that the value is a double, but leave it undefined. */ + simdjson_inline void skip_double() noexcept; /** - * Begin array iteration. - * - * This version of the method should be called after the initial [ has been verified, and is - * intended for use by switch statements that check the type of a value. - * - * @param iter The iterator. Must be after the initial [. Will be *moved* into the resulting array. + * End of friend declarations. */ - static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; /** - * Create an array at the given Internal array creation. Call array::start() or array::started() instead of this. - * - * @param iter The iterator. Must either be at the start of the first element with iter.is_alive() - * == true, or past the [] with is_alive() == false if the array is empty. Will be *moved* - * into the resulting array. + * Our attributes are a union type (size = 64 bits) + * followed by a type indicator. */ - simdjson_inline array(const value_iterator &iter) noexcept; + union { + double floating_point_number; + int64_t signed_integer; + uint64_t unsigned_integer; + } payload{0}; + number_type type{number_type::signed_integer}; +}; - /** - * Iterator marking current position. - * - * iter.is_alive() == false indicates iteration is complete. - */ - value_iterator iter{}; +/** + * Write the JSON type to the output stream + * + * @param out The output stream. + * @param type The json_type. + */ +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept; - friend class value; - friend class document; - friend struct simdjson_result; - friend struct simdjson_result; - friend class array_iterator; -}; +#if SIMDJSON_EXCEPTIONS +/** + * Send JSON type to an output stream. + * + * @param out The output stream. + * @param type The json_type. + * @throw simdjson_error if the result being printed has an error. If there is an error with the + * underlying output stream, that error will be propagated (simdjson_error will not be + * thrown). + */ +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false); +#endif } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +struct simdjson_result : public westmere::implementation_simdjson_result_base { public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array &&value) noexcept; ///< @private + simdjson_inline simdjson_result(westmere::ondemand::json_type &&value) noexcept; ///< @private simdjson_inline simdjson_result(error_code error) noexcept; ///< @private simdjson_inline simdjson_result() noexcept = default; - - simdjson_inline simdjson_result begin() noexcept; - simdjson_inline simdjson_result end() noexcept; - inline simdjson_result count_elements() & noexcept; - inline simdjson_result is_empty() & noexcept; - inline simdjson_result reset() & noexcept; - simdjson_inline simdjson_result at(size_t index) noexcept; - simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; - simdjson_inline simdjson_result raw_json() noexcept; - + simdjson_inline ~simdjson_result() noexcept = default; ///< @private }; } // namespace simdjson -/* end file include/simdjson/generic/ondemand/array.h */ -/* begin file include/simdjson/generic/ondemand/document.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_H +/* end file simdjson/generic/ondemand/json_type.h for westmere */ +/* including simdjson/generic/ondemand/raw_json_string.h for westmere: #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -class parser; -class array; -class object; -class value; -class raw_json_string; -class array_iterator; -class document_stream; - /** - * A JSON document. It holds a json_iterator instance. + * A string escaped per JSON rules, terminated with quote ("). They are used to represent + * unescaped keys inside JSON documents. * - * Used by tokens to get text, and string buffer location. + * (In other words, a pointer to the beginning of a string, just after the start quote, inside a + * JSON file.) + * + * This class is deliberately simplistic and has little functionality. You can + * compare a raw_json_string instance with an unescaped C string, but + * that is nearly all you can do. + * + * The raw_json_string is unescaped. If you wish to write an unescaped version of it to your own + * buffer, you may do so using the parser.unescape(string, buff) method, using an ondemand::parser + * instance. Doing so requires you to have a sufficiently large buffer. + * + * The raw_json_string instances originate typically from field instance which in turn represent + * key-value pairs from object instances. From a field instance, you get the raw_json_string + * instance by calling key(). You can, if you want a more usable string_view instance, call + * the unescaped_key() method on the field instance. You may also create a raw_json_string from + * any other string value, with the value.get_raw_json_string() method. Again, you can get + * a more usable string_view instance by calling get_string(). * - * You must keep the document around during iteration. */ -class document { +class raw_json_string { public: /** - * Create a new invalid document. + * Create a new invalid raw_json_string. * * Exists so you can declare a variable and later assign to it before use. */ - simdjson_inline document() noexcept = default; - simdjson_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy - simdjson_inline document(document &&other) noexcept = default; - simdjson_inline document &operator=(const document &other) noexcept = delete; - simdjson_inline document &operator=(document &&other) noexcept = default; + simdjson_inline raw_json_string() noexcept = default; /** - * Cast this JSON value to an array. + * Create a new invalid raw_json_string pointed at the given location in the JSON. * - * @returns An object that can be used to iterate the array. - * @returns INCORRECT_TYPE If the JSON value is not an array. + * The given location must be just *after* the beginning quote (") in the JSON file. + * + * It *must* be terminated by a ", and be a valid JSON string. */ - simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline raw_json_string(const uint8_t * _buf) noexcept; /** - * Cast this JSON value to an object. + * Get the raw pointer to the beginning of the string in the JSON (just after the "). * - * @returns An object that can be used to look up or iterate fields. - * @returns INCORRECT_TYPE If the JSON value is not an object. + * It is possible for this function to return a null pointer if the instance + * has outlived its existence. */ - simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline const char * raw() const noexcept; + /** - * Cast this JSON value to an unsigned integer. + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done) on target.size() characters, + * and if the raw_json_string instance has a quote character at byte index target.size(). + * We never read more than length + 1 bytes in the raw_json_string instance. + * If length is smaller than target.size(), this will return false. * - * @returns A signed 64-bit integer. - * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + * The std::string_view instance may contain any characters. However, the caller + * is responsible for setting length so that length bytes may be read in the + * raw_json_string. + * + * Performance: the comparison may be done using memcmp which may be efficient + * for long strings. */ - simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline bool unsafe_is_equal(size_t length, std::string_view target) const noexcept; + /** - * Cast this JSON value (inside string) to an unsigned integer. + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The std::string_view instance should not contain unescaped quote characters: + * the caller is responsible for this check. See is_free_from_unescaped_quote. * - * @returns A signed 64-bit integer. - * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. + * Performance: the comparison is done byte-by-byte which might be inefficient for + * long strings. + * + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); */ - simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline bool unsafe_is_equal(std::string_view target) const noexcept; + /** - * Cast this JSON value to a signed integer. + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). + * The provided C string should not contain an unescaped quote character: + * the caller is responsible for this check. See is_free_from_unescaped_quote. * - * @returns A signed 64-bit integer. - * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + * If target is a compile-time constant, and your compiler likes you, + * you should be able to do the following without performance penalty... + * + * static_assert(raw_json_string::is_free_from_unescaped_quote(target), ""); + * s.unsafe_is_equal(target); */ - simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline bool unsafe_is_equal(const char* target) const noexcept; + /** - * Cast this JSON value (inside string) to a signed integer. - * - * @returns A signed 64-bit integer. - * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. + * This compares the current instance to the std::string_view target: returns true if + * they are byte-by-byte equal (no escaping is done). */ - simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline bool is_equal(std::string_view target) const noexcept; + /** - * Cast this JSON value to a double. - * - * @returns A double. - * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + * This compares the current instance to the C string target: returns true if + * they are byte-by-byte equal (no escaping is done). */ - simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline bool is_equal(const char* target) const noexcept; /** - * Cast this JSON value (inside string) to a double. - * - * @returns A double. - * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. + * Returns true if target is free from unescaped quote. If target is known at + * compile-time, we might expect the computation to happen at compile time with + * many compilers (not all!). */ - simdjson_inline simdjson_result get_double_in_string() noexcept; + static simdjson_inline bool is_free_from_unescaped_quote(std::string_view target) noexcept; + static simdjson_inline bool is_free_from_unescaped_quote(const char* target) noexcept; + +private: + + /** - * Cast this JSON value to a string. - * - * The string is guaranteed to be valid UTF-8. - * - * Important: Calling get_string() twice on the same document is an error. - * - * @param Whether to allow a replacement character for unmatched surrogate pairs. - * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next - * time it parses a document or when it is destroyed. - * @returns INCORRECT_TYPE if the JSON value is not a string. + * This will set the inner pointer to zero, effectively making + * this instance unusable. */ - simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline void consume() noexcept { buf = nullptr; } + /** - * Cast this JSON value to a string. - * - * The string is not guaranteed to be valid UTF-8. See https://simonsapin.github.io/wtf-8/ - * - * Important: Calling get_wobbly_string() twice on the same document is an error. - * - * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next - * time it parses a document or when it is destroyed. - * @returns INCORRECT_TYPE if the JSON value is not a string. + * Checks whether the inner pointer is non-null and thus usable. */ - simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_warn_unused bool alive() const noexcept { return buf != nullptr; } + /** - * Cast this JSON value to a raw_json_string. + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result will be a valid UTF-8. * - * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * ## IMPORTANT: string_view lifetime * - * @returns A pointer to the raw JSON for the given string. - * @returns INCORRECT_TYPE if the JSON value is not a string. - */ - simdjson_inline simdjson_result get_raw_json_string() noexcept; - /** - * Cast this JSON value to a bool. + * The string_view is only valid until the next parse() call on the parser. * - * @returns A bool value. - * @returns INCORRECT_TYPE if the JSON value is not true or false. + * @param iter A json_iterator, which contains a buffer where the string will be written. + * @param allow_replacement Whether we allow replacement of invalid surrogate pairs. */ - simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape(json_iterator &iter, bool allow_replacement) const noexcept; + /** - * Cast this JSON value to a value when the document is an object or an array. + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. + * The result may not be a valid UTF-8. https://simonsapin.github.io/wtf-8/ * - * @returns A value if a JSON array or object cannot be found. - * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function). + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid until the next parse() call on the parser. + * + * @param iter A json_iterator, which contains a buffer where the string will be written. */ - simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(json_iterator &iter) const noexcept; + const uint8_t * buf{}; + friend class object; + friend class field; + friend class parser; + friend struct simdjson_result; +}; + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &, const raw_json_string &) noexcept; + +/** + * Comparisons between raw_json_string and std::string_view instances are potentially unsafe: the user is responsible + * for providing a string with no unescaped quote. Note that unescaped quotes cannot be present in valid JSON strings. + */ +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept; +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept; +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept; + + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public westmere::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(westmere::ondemand::raw_json_string &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline ~simdjson_result() noexcept = default; ///< @private + + simdjson_inline simdjson_result raw() const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape(westmere::ondemand::json_iterator &iter, bool allow_replacement) const noexcept; + simdjson_inline simdjson_warn_unused simdjson_result unescape_wobbly(westmere::ondemand::json_iterator &iter) const noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_H +/* end file simdjson/generic/ondemand/raw_json_string.h for westmere */ +/* including simdjson/generic/ondemand/parser.h for westmere: #include "simdjson/generic/ondemand/parser.h" */ +/* begin file simdjson/generic/ondemand/parser.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include + +namespace simdjson { +namespace westmere { +namespace ondemand { + +/** + * The default batch size for document_stream instances for this On Demand kernel. + * Note that different On Demand kernel may use a different DEFAULT_BATCH_SIZE value + * in the future. + */ +static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; +/** + * Some adversary might try to set the batch size to 0 or 1, which might cause problems. + * We set a minimum of 32B since anything else is highly likely to be an error. In practice, + * most users will want a much larger batch size. + * + * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON + * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. + */ +static constexpr size_t MINIMAL_BATCH_SIZE = 32; +/** + * A JSON fragment iterator. + * + * This holds the actual iterator as well as the buffer for writing strings. + */ +class parser { +public: /** - * Checks if this JSON value is null. If and only if the value is - * null, then it is consumed (we advance). If we find a token that - * begins with 'n' but is not 'null', then an error is returned. + * Create a JSON parser. * - * @returns Whether the value is null. - * @returns INCORRECT_TYPE If the JSON value begins with 'n' and is not 'null'. + * The new parser will have zero capacity. */ - simdjson_inline simdjson_result is_null() noexcept; + inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; + + inline parser(parser &&other) noexcept = default; + simdjson_inline parser(const parser &other) = delete; + simdjson_inline parser &operator=(const parser &other) = delete; + simdjson_inline parser &operator=(parser &&other) noexcept = default; + + /** Deallocate the JSON parser. */ + inline ~parser() noexcept = default; /** - * Get this value as the given type. + * Start iterating an on-demand JSON document. * - * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * ondemand::parser parser; + * document doc = parser.iterate(json); * - * You may use get_double(), get_bool(), get_uint64(), get_int64(), - * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * It is expected that the content is a valid UTF-8 file, containing a valid JSON document. + * Otherwise the iterate method may return an error. In particular, the whole input should be + * valid: we do not attempt to tolerate incorrect content either before or after a JSON + * document. * - * @returns A value of the given type, parsed from the JSON. - * @returns INCORRECT_TYPE If the JSON value is not the given type. - */ - template simdjson_inline simdjson_result get() & noexcept { - // Unless the simdjson library provides an inline implementation, calling this method should - // immediately fail. - static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); - } - /** @overload template simdjson_result get() & noexcept */ - template simdjson_inline simdjson_result get() && noexcept { - // Unless the simdjson library provides an inline implementation, calling this method should - // immediately fail. - static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); - } - - /** - * Get this value as the given type. + * ### IMPORTANT: Validate what you use * - * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value + * Calling iterate on an invalid JSON document may not immediately trigger an error. The call to + * iterate does not parse and validate the whole document. * - * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances. + * ### IMPORTANT: Buffer Lifetime * - * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. - * @returns INCORRECT_TYPE If the JSON value is not an object. - * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. - */ - template simdjson_inline error_code get(T &out) & noexcept; - /** @overload template error_code get(T &out) & noexcept */ - template simdjson_inline error_code get(T &out) && noexcept; - -#if SIMDJSON_EXCEPTIONS - /** - * Cast this JSON value to an array. + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. * - * @returns An object that can be used to iterate the array. - * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. - */ - simdjson_inline operator array() & noexcept(false); - /** - * Cast this JSON value to an object. + * ### IMPORTANT: Document Lifetime * - * @returns An object that can be used to look up or iterate fields. - * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. - */ - simdjson_inline operator object() & noexcept(false); - /** - * Cast this JSON value to an unsigned integer. + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. * - * @returns A signed 64-bit integer. - * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit unsigned integer. - */ - simdjson_inline operator uint64_t() noexcept(false); - /** - * Cast this JSON value to a signed integer. + * ### REQUIRED: Buffer Padding * - * @returns A signed 64-bit integer. - * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a 64-bit integer. - */ - simdjson_inline operator int64_t() noexcept(false); - /** - * Cast this JSON value to a double. + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. * - * @returns A double. - * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not a valid floating-point number. + * @param json The JSON to parse. + * @param len The length of the JSON. + * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING). + * + * @return The document, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. */ - simdjson_inline operator double() noexcept(false); + simdjson_warn_unused simdjson_result iterate(padded_string_view json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const char *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(std::string_view json, size_t capacity) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const std::string &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; + /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ + simdjson_warn_unused simdjson_result iterate(padded_string &&json) & noexcept = delete; + /** - * Cast this JSON value to a string. + * @private * - * The string is guaranteed to be valid UTF-8. + * Start iterating an on-demand JSON document. * - * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next - * time it parses a document or when it is destroyed. - * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. - */ - simdjson_inline operator std::string_view() noexcept(false); - /** - * Cast this JSON value to a raw_json_string. + * ondemand::parser parser; + * json_iterator doc = parser.iterate(json); * - * The string is guaranteed to be valid UTF-8, and may have escapes in it (e.g. \\ or \n). + * ### IMPORTANT: Buffer Lifetime * - * @returns A pointer to the raw JSON for the given string. - * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. - */ - simdjson_inline operator raw_json_string() noexcept(false); - /** - * Cast this JSON value to a bool. + * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as + * long as the document iteration. * - * @returns A bool value. - * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. - */ - simdjson_inline operator bool() noexcept(false); - /** - * Cast this JSON value to a value. + * ### IMPORTANT: Document Lifetime * - * @returns A value value. - * @exception if a JSON value cannot be found - */ - simdjson_inline operator value() noexcept(false); -#endif - /** - * This method scans the array and counts the number of elements. - * The count_elements method should always be called before you have begun - * iterating through the array: it is expected that you are pointing at - * the beginning of the array. - * The runtime complexity is linear in the size of the array. After - * calling this function, if successful, the array is 'rewinded' at its - * beginning as if it had never been accessed. If the JSON is malformed (e.g., - * there is a missing comma), then an error is returned and it is no longer - * safe to continue. - */ - simdjson_inline simdjson_result count_elements() & noexcept; - /** - * This method scans the object and counts the number of key-value pairs. - * The count_fields method should always be called before you have begun - * iterating through the object: it is expected that you are pointing at - * the beginning of the object. - * The runtime complexity is linear in the size of the object. After - * calling this function, if successful, the object is 'rewinded' at its - * beginning as if it had never been accessed. If the JSON is malformed (e.g., - * there is a missing comma), then an error is returned and it is no longer - * safe to continue. + * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during + * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before + * you call parse() again or destroy the parser. * - * To check that an object is empty, it is more performant to use - * the is_empty() method. - */ - simdjson_inline simdjson_result count_fields() & noexcept; - /** - * Get the value at the given index in the array. This function has linear-time complexity. - * This function should only be called once on an array instance since the array iterator is not reset between each call. + * The ondemand::document instance holds the iterator. The document must remain in scope + * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array. * - * @return The value at the given index, or: - * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length - */ - simdjson_inline simdjson_result at(size_t index) & noexcept; - /** - * Begin array iteration. + * ### REQUIRED: Buffer Padding * - * Part of the std::iterable interface. - */ - simdjson_inline simdjson_result begin() & noexcept; - /** - * Sentinel representing the end of the array. + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. * - * Part of the std::iterable interface. + * @param json The JSON to parse. + * + * @return The iterator, or an error: + * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. + * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory + * allocation fails. + * - EMPTY if the document is all whitespace. + * - UTF8_ERROR if the document is not valid UTF-8. + * - UNESCAPED_CHARS if a string contains control characters that must be escaped + * - UNCLOSED_STRING if there is an unclosed string in the document. */ - simdjson_inline simdjson_result end() & noexcept; + simdjson_warn_unused simdjson_result iterate_raw(padded_string_view json) & noexcept; + /** - * Look up a field by name on an object (order-sensitive). + * Parse a buffer containing many JSON documents. * - * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the - * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded; + * ondemand::parser parser; + * ondemand::document_stream docs = parser.iterate_many(json); + * for (auto & doc : docs) { + * std::cout << doc["foo"] << std::endl; + * } + * // Prints 1 2 3 * - * ```c++ - * simdjson::ondemand::parser parser; - * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); - * double z = obj.find_field("z"); - * double y = obj.find_field("y"); - * double x = obj.find_field("x"); - * ``` + * No copy of the input buffer is made. * - * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. - * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * The function is lazy: it may be that no more than one JSON document at a time is parsed. * + * The caller is responsabile to ensure that the input string data remains unchanged and is + * not deleted during the loop. * - * You must consume the fields on an object one at a time. A request for a new key - * invalidates previous field values: it makes them unsafe. E.g., the array - * given by content["bids"].get_array() should not be accessed after you have called - * content["asks"].get_array(). You can detect such mistakes by first compiling and running - * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an - * OUT_OF_ORDER_ITERATION error is generated. + * ### Format * - * You are expected to access keys only once. You should access the value corresponding to - * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string() - * is an error. + * The buffer must contain a series of one or more JSON documents, concatenated into a single + * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document, + * then starts parsing the next document at that point. (It does this with more parallelism and + * lookahead than you might think, though.) * - * @param key The key to look up. - * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. - */ - simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; - /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ - simdjson_inline simdjson_result find_field(const char *key) & noexcept; - - /** - * Look up a field by name on an object, without regard to key order. + * documents that consist of an object or array may omit the whitespace between them, concatenating + * with no separator. Documents that consist of a single primitive (i.e. documents that are not + * arrays or objects) MUST be separated with ASCII whitespace. * - * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies - * and often appears negligible. It starts out normally, starting out at the last field; but if - * the field is not found, it scans from the beginning of the object to see if it missed it. That - * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object - * in question is large. The fact that the extra code is there also bumps the executable size. + * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8). * - * It is the default, however, because it would be highly surprising (and hard to debug) if the - * default behavior failed to look up a field just because it was in the wrong order--and many - * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. + * Setting batch_size to excessively large or excessively small values may impact negatively the + * performance. * - * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the - * field wasn't there when they aren't). + * ### REQUIRED: Buffer Padding * - * You must consume the fields on an object one at a time. A request for a new key - * invalidates previous field values: it makes them unsafe. E.g., the array - * given by content["bids"].get_array() should not be accessed after you have called - * content["asks"].get_array(). You can detect such mistakes by first compiling and running - * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an - * OUT_OF_ORDER_ITERATION error is generated. + * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what + * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you + * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the + * SIMDJSON_PADDING bytes to avoid runtime warnings. * - * You are expected to access keys only once. You should access the value corresponding to a key - * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() - * is an error. + * ### Threads * - * @param key The key to look up. - * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the + * hood to do some lookahead. + * + * ### Parser Capacity + * + * If the parser's current capacity is less than batch_size, it will allocate enough capacity + * to handle it (up to max_capacity). + * + * @param buf The concatenated JSON to parse. + * @param len The length of the concatenated JSON. + * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet + * spot is cache-related: small enough to fit in cache, yet big enough to + * parse as many documents as possible in one tight loop. + * Defaults to 10MB, which has been a reasonable sweet spot in our tests. + * @param allow_comma_separated (defaults on false) This allows a mode where the documents are + * separated by commas instead of whitespace. It comes with a performance + * penalty because the entire document is indexed at once (and the document must be + * less than 4 GB), and there is no multithreading. In this mode, the batch_size parameter + * is effectively ignored, as it is set to at least the document size. + * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: + * - MEMALLOC if the parser does not have enough capacity and memory allocation fails + * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. + * - other json errors if parsing fails. You should not rely on these errors to always the same for the + * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). */ - simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ - simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ - simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ - simdjson_inline simdjson_result operator[](const char *key) & noexcept; + inline simdjson_result iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const std::string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const std::string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ + inline simdjson_result iterate_many(const padded_string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; + inline simdjson_result iterate_many(const padded_string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + + /** @private We do not want to allow implicit conversion from C string to std::string. */ + simdjson_result iterate_many(const char *buf, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept = delete; + /** The capacity of this parser (the largest document it can process). */ + simdjson_inline size_t capacity() const noexcept; + /** The maximum capacity of this parser (the largest document it is allowed to process). */ + simdjson_inline size_t max_capacity() const noexcept; + simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; /** - * Get the type of this JSON value. It does not validate or consume the value. - * E.g., you must still call "is_null()" to check that a value is null even if - * "type()" returns json_type::null. - * - * NOTE: If you're only expecting a value to be one type (a typical case), it's generally - * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just - * let it throw an exception). - * - * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + * The maximum depth of this parser (the most deeply nested objects and arrays it can process). + * This parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. */ - simdjson_inline simdjson_result type() noexcept; + simdjson_inline size_t max_depth() const noexcept; /** - * Checks whether the document is a scalar (string, number, null, Boolean). - * Returns false when there it is an array or object. + * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length + * and `max_depth` depth. * - * @returns true if the type is string, number, null, Boolean - * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". + * The max_depth parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. + * The document's instance current_depth() method should be used to monitor the parsing + * depth and limit it if desired. + * + * @param capacity The new capacity. + * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. + * @return The error, if there is one. */ - simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_warn_unused error_code allocate(size_t capacity, size_t max_depth=DEFAULT_MAX_DEPTH) noexcept; + #ifdef SIMDJSON_THREADS_ENABLED /** - * Checks whether the document is a negative number. - * - * @returns true if the number if negative. + * The parser instance can use threads when they are available to speed up some + * operations. It is enabled by default. Changing this attribute will change the + * behavior of the parser for future operations. */ - simdjson_inline bool is_negative() noexcept; + bool threaded{true}; + #endif + /** - * Checks whether the document is an integer number. Note that - * this requires to partially parse the number string. If - * the value is determined to be an integer, it may still - * not parse properly as an integer in subsequent steps - * (e.g., it might overflow). + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result must be valid UTF-8. + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. * - * @returns true if the number if negative. + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). + * + * ## IMPORTANT: string_view lifetime + * + * The string_view is only valid as long as the bytes in dst. + * + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @param allow_replacement Whether we allow a replacement if the input string contains unmatched surrogate pairs. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. */ - simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement = false) const noexcept; + /** - * Determine the number type (integer or floating-point number) as quickly - * as possible. This function does not fully validate the input. It is - * useful when you only need to classify the numbers, without parsing them. + * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. + * The result may not be valid UTF-8. See https://simonsapin.github.io/wtf-8/ + * The provided pointer is advanced to the end of the string by reference, and a string_view instance + * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least + * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. * - * If you are planning to retrieve the value or you need full validation, - * consider using the get_number() method instead: it will fully parse - * and validate the input, and give you access to the type: - * get_number().get_number_type(). + * This unescape function is a low-level function. If you want a more user-friendly approach, you should + * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() + * instead of get_raw_json_string()). * - * get_number_type() is number_type::unsigned_integer if we have - * an integer greater or equal to 9223372036854775808 - * get_number_type() is number_type::signed_integer if we have an - * integer that is less than 9223372036854775808 - * Otherwise, get_number_type() has value number_type::floating_point_number + * ## IMPORTANT: string_view lifetime * - * This function requires processing the number string, but it is expected - * to be faster than get_number().get_number_type() because it is does not - * parse the number value. + * The string_view is only valid as long as the bytes in dst. * - * @returns the type of the number + * @param raw_json_string input + * @param dst A pointer to a buffer at least large enough to write this string as well as + * an additional SIMDJSON_PADDING bytes. + * @return A string_view pointing at the unescaped string in dst + * @error STRING_ERROR if escapes are incorrect. */ - simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept; + +private: + /** @private [for benchmarking access] The implementation to use */ + std::unique_ptr implementation{}; + size_t _capacity{0}; + size_t _max_capacity; + size_t _max_depth{DEFAULT_MAX_DEPTH}; + std::unique_ptr string_buf{}; +#if SIMDJSON_DEVELOPMENT_CHECKS + std::unique_ptr start_positions{}; +#endif + + friend class json_iterator; + friend class document_stream; +}; + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public westmere::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(westmere::ondemand::parser &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_H +/* end file simdjson/generic/ondemand/parser.h for westmere */ + +// All other declarations +/* including simdjson/generic/ondemand/array.h for westmere: #include "simdjson/generic/ondemand/array.h" */ +/* begin file simdjson/generic/ondemand/array.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { +/** + * A forward-only JSON array. + */ +class array { +public: /** - * Attempt to parse an ondemand::number. An ondemand::number may - * contain an integer value or a floating-point value, the simdjson - * library will autodetect the type. Thus it is a dynamically typed - * number. Before accessing the value, you must determine the detected - * type. - * - * number.get_number_type() is number_type::signed_integer if we have - * an integer in [-9223372036854775808,9223372036854775808) - * You can recover the value by calling number.get_int64() and you - * have that number.is_int64() is true. - * - * number.get_number_type() is number_type::unsigned_integer if we have - * an integer in [9223372036854775808,18446744073709551616) - * You can recover the value by calling number.get_uint64() and you - * have that number.is_uint64() is true. - * - * Otherwise, number.get_number_type() has value number_type::floating_point_number - * and we have a binary64 number. - * You can recover the value by calling number.get_double() and you - * have that number.is_double() is true. + * Create a new invalid array. * - * You must check the type before accessing the value: it is an error - * to call "get_int64()" when number.get_number_type() is not - * number_type::signed_integer and when number.is_int64() is false. + * Exists so you can declare a variable and later assign to it before use. */ - simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; + simdjson_inline array() noexcept = default; /** - * Get the raw JSON for this token. - * - * The string_view will always point into the input buffer. - * - * The string_view will start at the beginning of the token, and include the entire token - * *as well as all spaces until the next token (or EOF).* This means, for example, that a - * string token always begins with a " and is always terminated by the final ", possibly - * followed by a number of spaces. - * - * The string_view is *not* null-terminated. If this is a scalar (string, number, - * boolean, or null), the character after the end of the string_view may be the padded buffer. + * Begin array iteration. * - * Tokens include: - * - { - * - [ - * - "a string (possibly with UTF-8 or backslashed characters like \\\")". - * - -1.2e-100 - * - true - * - false - * - null - */ - simdjson_inline simdjson_result raw_json_token() noexcept; - - /** - * Reset the iterator inside the document instance so we are pointing back at the - * beginning of the document, as if it had just been created. It invalidates all - * values, objects and arrays that you have created so far (including unescaped strings). - */ - inline void rewind() noexcept; - /** - * Returns debugging information. + * Part of the std::iterable interface. */ - inline std::string to_debug_string() noexcept; + simdjson_inline simdjson_result begin() noexcept; /** - * Some unrecoverable error conditions may render the document instance unusable. - * The is_alive() method returns true when the document is still suitable. + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. */ - inline bool is_alive() noexcept; - + simdjson_inline simdjson_result end() noexcept; /** - * Returns the current location in the document if in bounds. + * This method scans the array and counts the number of elements. + * The count_elements method should always be called before you have begun + * iterating through the array: it is expected that you are pointing at + * the beginning of the array. + * The runtime complexity is linear in the size of the array. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an array is empty, it is more performant to use + * the is_empty() method. */ - inline simdjson_result current_location() const noexcept; - + simdjson_inline simdjson_result count_elements() & noexcept; /** - * Returns true if this document has been fully parsed. - * If you have consumed the whole document and at_end() returns - * false, then there may be trailing content. + * This method scans the beginning of the array and checks whether the + * array is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the array is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. */ - inline bool at_end() const noexcept; - + simdjson_inline simdjson_result is_empty() & noexcept; /** - * Returns the current depth in the document if in bounds. + * Reset the iterator so that we are pointing back at the + * beginning of the array. You should still consume values only once even if you + * can iterate through the array more than once. If you unescape a string + * within the array more than once, you have unsafe code. Note that rewinding + * an array means that you may need to reparse it anew: it is not a free + * operation. * - * E.g., - * 0 = finished with document - * 1 = document root value (could be [ or {, not yet known) - * 2 = , or } inside root array/object - * 3 = key or value inside root array/object. + * @returns true if the array contains some elements (not empty) */ - simdjson_inline int32_t current_depth() const noexcept; - + inline simdjson_result reset() & noexcept; /** * Get the value associated with the given JSON pointer. We use the RFC 6901 - * https://tools.ietf.org/html/rfc6901 standard. + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. * * ondemand::parser parser; - * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto json = R"([ { "foo": { "a": [ 10, 20, 30 ] }} ])"_padded; * auto doc = parser.iterate(json); - * doc.at_pointer("/foo/a/1") == 20 - * - * It is allowed for a key to be the empty string: + * doc.at_pointer("/0/foo/a/1") == 20 * - * ondemand::parser parser; - * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; - * auto doc = parser.iterate(json); - * doc.at_pointer("//a/1") == 20 + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an array + * instance: there is no rewind and no invalidation. * - * Note that at_pointer() automatically calls rewind between each call. Thus - * all values, objects and arrays that you have created so far (including unescaped strings) - * are invalidated. After calling at_pointer, you need to consume the result: string values - * should be stored in your own variables, arrays should be decoded and stored in your own array-like - * structures and so forth. + * You may only call at_pointer on an array after it has been created, but before it has + * been first accessed. When calling at_pointer on an array, the pointer is advanced to + * the location indicated by the JSON pointer (in case of success). It is no longer possible + * to call at_pointer on the same array. * - * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. * * @return The value associated with the given JSON pointer, or: * - NO_SUCH_FIELD if a field does not exist in an object * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length * - INCORRECT_TYPE if a non-integer is used to access an array * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed - * - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function). */ - simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; /** - * Consumes the document and returns a string_view instance corresponding to the - * document as represented in JSON. It points inside the original byte array containing - * the JSON document. + * Consumes the array and returns a string_view instance corresponding to the + * array as represented in JSON. It points inside the original document. */ simdjson_inline simdjson_result raw_json() noexcept; + + /** + * Get the value at the given index. This function has linear-time complexity. + * This function should only be called once on an array instance since the array iterator is not reset between each call. + * + * @return The value at the given index, or: + * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length + */ + simdjson_inline simdjson_result at(size_t index) noexcept; protected: /** - * Consumes the document. + * Go to the end of the array, no matter where you are right now. */ simdjson_inline error_code consume() noexcept; - simdjson_inline document(ondemand::json_iterator &&iter) noexcept; - simdjson_inline const uint8_t *text(uint32_t idx) const noexcept; + /** + * Begin array iteration. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + */ + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + /** + * Begin array iteration from the root. + * + * @param iter The iterator. Must be where the initial [ is expected. Will be *moved* into the + * resulting array. + * @error INCORRECT_TYPE if the iterator is not at [. + * @error TAPE_ERROR if there is no closing ] at the end of the document. + */ + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + /** + * Begin array iteration. + * + * This version of the method should be called after the initial [ has been verified, and is + * intended for use by switch statements that check the type of a value. + * + * @param iter The iterator. Must be after the initial [. Will be *moved* into the resulting array. + */ + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; - simdjson_inline value_iterator resume_value_iterator() noexcept; - simdjson_inline value_iterator get_root_value_iterator() noexcept; - simdjson_inline simdjson_result start_or_resume_object() noexcept; - static simdjson_inline document start(ondemand::json_iterator &&iter) noexcept; + /** + * Create an array at the given Internal array creation. Call array::start() or array::started() instead of this. + * + * @param iter The iterator. Must either be at the start of the first element with iter.is_alive() + * == true, or past the [] with is_alive() == false if the array is empty. Will be *moved* + * into the resulting array. + */ + simdjson_inline array(const value_iterator &iter) noexcept; - // - // Fields - // - json_iterator iter{}; ///< Current position in the document - static constexpr depth_t DOCUMENT_DEPTH = 0; ///< document depth is always 0 + /** + * Iterator marking current position. + * + * iter.is_alive() == false indicates iteration is complete. + */ + value_iterator iter{}; - friend class array_iterator; friend class value; - friend class ondemand::parser; - friend class object; - friend class array; - friend class field; - friend class token; - friend class document_stream; - friend class document_reference; + friend class document; + friend struct simdjson_result; + friend struct simdjson_result; + friend class array_iterator; }; +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { -/** - * A document_reference is a thin wrapper around a document reference instance. - */ -class document_reference { +template<> +struct simdjson_result : public westmere::implementation_simdjson_result_base { public: - simdjson_inline document_reference() noexcept; - simdjson_inline document_reference(document &d) noexcept; - simdjson_inline document_reference(const document_reference &other) noexcept = default; - simdjson_inline document_reference& operator=(const document_reference &other) noexcept = default; - simdjson_inline void rewind() noexcept; - simdjson_inline simdjson_result get_array() & noexcept; - simdjson_inline simdjson_result get_object() & noexcept; - simdjson_inline simdjson_result get_uint64() noexcept; - simdjson_inline simdjson_result get_uint64_in_string() noexcept; - simdjson_inline simdjson_result get_int64() noexcept; - simdjson_inline simdjson_result get_int64_in_string() noexcept; - simdjson_inline simdjson_result get_double() noexcept; - simdjson_inline simdjson_result get_double_in_string() noexcept; - simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; - simdjson_inline simdjson_result get_wobbly_string() noexcept; - simdjson_inline simdjson_result get_raw_json_string() noexcept; - simdjson_inline simdjson_result get_bool() noexcept; - simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result(westmere::ondemand::array &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; - simdjson_inline simdjson_result is_null() noexcept; + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + inline simdjson_result count_elements() & noexcept; + inline simdjson_result is_empty() & noexcept; + inline simdjson_result reset() & noexcept; + simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; simdjson_inline simdjson_result raw_json() noexcept; - simdjson_inline operator document&() const noexcept; - -#if SIMDJSON_EXCEPTIONS - simdjson_inline operator array() & noexcept(false); - simdjson_inline operator object() & noexcept(false); - simdjson_inline operator uint64_t() noexcept(false); - simdjson_inline operator int64_t() noexcept(false); - simdjson_inline operator double() noexcept(false); - simdjson_inline operator std::string_view() noexcept(false); - simdjson_inline operator raw_json_string() noexcept(false); - simdjson_inline operator bool() noexcept(false); - simdjson_inline operator value() noexcept(false); -#endif - simdjson_inline simdjson_result count_elements() & noexcept; - simdjson_inline simdjson_result count_fields() & noexcept; - simdjson_inline simdjson_result at(size_t index) & noexcept; - simdjson_inline simdjson_result begin() & noexcept; - simdjson_inline simdjson_result end() & noexcept; - simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; - simdjson_inline simdjson_result find_field(const char *key) & noexcept; - simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; - simdjson_inline simdjson_result operator[](const char *key) & noexcept; - simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; - simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; - simdjson_inline simdjson_result type() noexcept; - simdjson_inline simdjson_result is_scalar() noexcept; - - simdjson_inline simdjson_result current_location() noexcept; - simdjson_inline int32_t current_depth() const noexcept; - simdjson_inline bool is_negative() noexcept; - simdjson_inline simdjson_result is_integer() noexcept; - simdjson_inline simdjson_result get_number_type() noexcept; - simdjson_inline simdjson_result get_number() noexcept; - simdjson_inline simdjson_result raw_json_token() noexcept; - simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; -private: - document *doc{nullptr}; }; -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION + } // namespace simdjson +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_H +/* end file simdjson/generic/ondemand/array.h for westmere */ +/* including simdjson/generic/ondemand/array_iterator.h for westmere: #include "simdjson/generic/ondemand/array_iterator.h" */ +/* begin file simdjson/generic/ondemand/array_iterator.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + + namespace simdjson { +namespace westmere { +namespace ondemand { -template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +/** + * A forward-only JSON array. + * + * This is an input_iterator, meaning: + * - It is forward-only + * - * must be called exactly once per element. + * - ++ must be called exactly once in between each * (*, ++, *, ++, * ...) + */ +class array_iterator { public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - simdjson_inline simdjson_result() noexcept = default; - simdjson_inline error_code rewind() noexcept; + /** Create a new, invalid array iterator. */ + simdjson_inline array_iterator() noexcept = default; - simdjson_inline simdjson_result get_array() & noexcept; - simdjson_inline simdjson_result get_object() & noexcept; - simdjson_inline simdjson_result get_uint64() noexcept; - simdjson_inline simdjson_result get_uint64_in_string() noexcept; - simdjson_inline simdjson_result get_int64() noexcept; - simdjson_inline simdjson_result get_int64_in_string() noexcept; - simdjson_inline simdjson_result get_double() noexcept; - simdjson_inline simdjson_result get_double_in_string() noexcept; - simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; - simdjson_inline simdjson_result get_wobbly_string() noexcept; - simdjson_inline simdjson_result get_raw_json_string() noexcept; - simdjson_inline simdjson_result get_bool() noexcept; - simdjson_inline simdjson_result get_value() noexcept; - simdjson_inline simdjson_result is_null() noexcept; + // + // Iterator interface + // - template simdjson_inline simdjson_result get() & noexcept; - template simdjson_inline simdjson_result get() && noexcept; + /** + * Get the current element. + * + * Part of the std::iterator interface. + */ + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + /** + * Check if we are at the end of the JSON. + * + * Part of the std::iterator interface. + * + * @return true if there are no more elements in the JSON array. + */ + simdjson_inline bool operator==(const array_iterator &) const noexcept; + /** + * Check if there are more elements in the JSON array. + * + * Part of the std::iterator interface. + * + * @return true if there are more elements in the JSON array. + */ + simdjson_inline bool operator!=(const array_iterator &) const noexcept; + /** + * Move to the next element. + * + * Part of the std::iterator interface. + */ + simdjson_inline array_iterator &operator++() noexcept; - template simdjson_inline error_code get(T &out) & noexcept; - template simdjson_inline error_code get(T &out) && noexcept; +private: + value_iterator iter{}; -#if SIMDJSON_EXCEPTIONS - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() & noexcept(false); - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() & noexcept(false); - simdjson_inline operator uint64_t() noexcept(false); - simdjson_inline operator int64_t() noexcept(false); - simdjson_inline operator double() noexcept(false); - simdjson_inline operator std::string_view() noexcept(false); - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false); - simdjson_inline operator bool() noexcept(false); - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value() noexcept(false); -#endif - simdjson_inline simdjson_result count_elements() & noexcept; - simdjson_inline simdjson_result count_fields() & noexcept; - simdjson_inline simdjson_result at(size_t index) & noexcept; - simdjson_inline simdjson_result begin() & noexcept; - simdjson_inline simdjson_result end() & noexcept; - simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; - simdjson_inline simdjson_result find_field(const char *key) & noexcept; - simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; - simdjson_inline simdjson_result operator[](const char *key) & noexcept; - simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; - simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; - simdjson_inline simdjson_result type() noexcept; - simdjson_inline simdjson_result is_scalar() noexcept; - simdjson_inline simdjson_result current_location() noexcept; - simdjson_inline int32_t current_depth() const noexcept; - simdjson_inline bool at_end() const noexcept; - simdjson_inline bool is_negative() noexcept; - simdjson_inline simdjson_result is_integer() noexcept; - simdjson_inline simdjson_result get_number_type() noexcept; - simdjson_inline simdjson_result get_number() noexcept; - /** @copydoc simdjson_inline std::string_view document::raw_json_token() const noexcept */ - simdjson_inline simdjson_result raw_json_token() noexcept; + simdjson_inline array_iterator(const value_iterator &iter) noexcept; - simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + friend class array; + friend class value; + friend struct simdjson_result; }; - +} // namespace ondemand +} // namespace westmere } // namespace simdjson - - namespace simdjson { template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +struct simdjson_result : public westmere::implementation_simdjson_result_base { public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference value, error_code error) noexcept; + simdjson_inline simdjson_result(westmere::ondemand::array_iterator &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private simdjson_inline simdjson_result() noexcept = default; - simdjson_inline error_code rewind() noexcept; - - simdjson_inline simdjson_result get_array() & noexcept; - simdjson_inline simdjson_result get_object() & noexcept; - simdjson_inline simdjson_result get_uint64() noexcept; - simdjson_inline simdjson_result get_uint64_in_string() noexcept; - simdjson_inline simdjson_result get_int64() noexcept; - simdjson_inline simdjson_result get_int64_in_string() noexcept; - simdjson_inline simdjson_result get_double() noexcept; - simdjson_inline simdjson_result get_double_in_string() noexcept; - simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; - simdjson_inline simdjson_result get_wobbly_string() noexcept; - simdjson_inline simdjson_result get_raw_json_string() noexcept; - simdjson_inline simdjson_result get_bool() noexcept; - simdjson_inline simdjson_result get_value() noexcept; - simdjson_inline simdjson_result is_null() noexcept; -#if SIMDJSON_EXCEPTIONS - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() & noexcept(false); - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() & noexcept(false); - simdjson_inline operator uint64_t() noexcept(false); - simdjson_inline operator int64_t() noexcept(false); - simdjson_inline operator double() noexcept(false); - simdjson_inline operator std::string_view() noexcept(false); - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false); - simdjson_inline operator bool() noexcept(false); - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value() noexcept(false); -#endif - simdjson_inline simdjson_result count_elements() & noexcept; - simdjson_inline simdjson_result count_fields() & noexcept; - simdjson_inline simdjson_result at(size_t index) & noexcept; - simdjson_inline simdjson_result begin() & noexcept; - simdjson_inline simdjson_result end() & noexcept; - simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; - simdjson_inline simdjson_result find_field(const char *key) & noexcept; - simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; - simdjson_inline simdjson_result operator[](const char *key) & noexcept; - simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; - simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; - simdjson_inline simdjson_result type() noexcept; - simdjson_inline simdjson_result is_scalar() noexcept; - simdjson_inline simdjson_result current_location() noexcept; - simdjson_inline simdjson_result current_depth() const noexcept; - simdjson_inline simdjson_result is_negative() noexcept; - simdjson_inline simdjson_result is_integer() noexcept; - simdjson_inline simdjson_result get_number_type() noexcept; - simdjson_inline simdjson_result get_number() noexcept; - /** @copydoc simdjson_inline std::string_view document_reference::raw_json_token() const noexcept */ - simdjson_inline simdjson_result raw_json_token() noexcept; + // + // Iterator interface + // - simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + simdjson_inline simdjson_result &operator++() noexcept; }; - } // namespace simdjson -/* end file include/simdjson/generic/ondemand/document.h */ -/* begin file include/simdjson/generic/ondemand/value.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_H +/* end file simdjson/generic/ondemand/array_iterator.h for westmere */ +/* including simdjson/generic/ondemand/document.h for westmere: #include "simdjson/generic/ondemand/document.h" */ +/* begin file simdjson/generic/ondemand/document.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -class array; -class document; -class field; -class object; -class raw_json_string; - /** - * An ephemeral JSON value returned during iteration. It is only valid for as long as you do - * not access more data in the JSON document. + * A JSON document. It holds a json_iterator instance. + * + * Used by tokens to get text, and string buffer location. + * + * You must keep the document around during iteration. */ -class value { +class document { public: /** - * Create a new invalid value. + * Create a new invalid document. * * Exists so you can declare a variable and later assign to it before use. */ - simdjson_inline value() noexcept = default; - - /** - * Get this value as the given type. - * - * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool - * - * You may use get_double(), get_bool(), get_uint64(), get_int64(), - * get_object(), get_array(), get_raw_json_string(), or get_string() instead. - * - * @returns A value of the given type, parsed from the JSON. - * @returns INCORRECT_TYPE If the JSON value is not the given type. - */ - template simdjson_inline simdjson_result get() noexcept { - // Unless the simdjson library provides an inline implementation, calling this method should - // immediately fail. - static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); - } - - /** - * Get this value as the given type. - * - * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool - * - * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. - * @returns INCORRECT_TYPE If the JSON value is not an object. - * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. - */ - template simdjson_inline error_code get(T &out) noexcept; + simdjson_inline document() noexcept = default; + simdjson_inline document(const document &other) noexcept = delete; // pass your documents by reference, not by copy + simdjson_inline document(document &&other) noexcept = default; + simdjson_inline document &operator=(const document &other) noexcept = delete; + simdjson_inline document &operator=(document &&other) noexcept = default; /** * Cast this JSON value to an array. @@ -25505,32 +80856,28 @@ class value { * @returns An object that can be used to iterate the array. * @returns INCORRECT_TYPE If the JSON value is not an array. */ - simdjson_inline simdjson_result get_array() noexcept; - + simdjson_inline simdjson_result get_array() & noexcept; /** * Cast this JSON value to an object. * * @returns An object that can be used to look up or iterate fields. * @returns INCORRECT_TYPE If the JSON value is not an object. */ - simdjson_inline simdjson_result get_object() noexcept; - + simdjson_inline simdjson_result get_object() & noexcept; /** * Cast this JSON value to an unsigned integer. * - * @returns A unsigned 64-bit integer. + * @returns A signed 64-bit integer. * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. */ simdjson_inline simdjson_result get_uint64() noexcept; - /** - * Cast this JSON value (inside string) to a unsigned integer. + * Cast this JSON value (inside string) to an unsigned integer. * - * @returns A unsigned 64-bit integer. + * @returns A signed 64-bit integer. * @returns INCORRECT_TYPE If the JSON value is not a 64-bit unsigned integer. */ simdjson_inline simdjson_result get_uint64_in_string() noexcept; - /** * Cast this JSON value to a signed integer. * @@ -25538,7 +80885,6 @@ class value { * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. */ simdjson_inline simdjson_result get_int64() noexcept; - /** * Cast this JSON value (inside string) to a signed integer. * @@ -25546,7 +80892,6 @@ class value { * @returns INCORRECT_TYPE If the JSON value is not a 64-bit integer. */ simdjson_inline simdjson_result get_int64_in_string() noexcept; - /** * Cast this JSON value to a double. * @@ -25556,38 +80901,31 @@ class value { simdjson_inline simdjson_result get_double() noexcept; /** - * Cast this JSON value (inside string) to a double + * Cast this JSON value (inside string) to a double. * * @returns A double. * @returns INCORRECT_TYPE If the JSON value is not a valid floating-point number. */ simdjson_inline simdjson_result get_double_in_string() noexcept; - /** * Cast this JSON value to a string. * * The string is guaranteed to be valid UTF-8. * - * Equivalent to get(). - * - * Important: a value should be consumed once. Calling get_string() twice on the same value - * is an error. + * Important: Calling get_string() twice on the same document is an error. * + * @param Whether to allow a replacement character for unmatched surrogate pairs. * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next * time it parses a document or when it is destroyed. * @returns INCORRECT_TYPE if the JSON value is not a string. */ simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; - - /** - * Cast this JSON value to a "wobbly" string. + * Cast this JSON value to a string. * - * The string is may not be a valid UTF-8 string. - * See https://simonsapin.github.io/wtf-8/ + * The string is not guaranteed to be valid UTF-8. See https://simonsapin.github.io/wtf-8/ * - * Important: a value should be consumed once. Calling get_wobbly_string() twice on the same value - * is an error. + * Important: Calling get_wobbly_string() twice on the same document is an error. * * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next * time it parses a document or when it is destroyed. @@ -25603,7 +80941,6 @@ class value { * @returns INCORRECT_TYPE if the JSON value is not a string. */ simdjson_inline simdjson_result get_raw_json_string() noexcept; - /** * Cast this JSON value to a bool. * @@ -25611,9 +80948,16 @@ class value { * @returns INCORRECT_TYPE if the JSON value is not true or false. */ simdjson_inline simdjson_result get_bool() noexcept; + /** + * Cast this JSON value to a value when the document is an object or an array. + * + * @returns A value if a JSON array or object cannot be found. + * @returns SCALAR_DOCUMENT_AS_VALUE error is the document is a scalar (see is_scalar() function). + */ + simdjson_inline simdjson_result get_value() noexcept; /** - * Checks if this JSON value is null. If and only if the value is + * Checks if this JSON value is null. If and only if the value is * null, then it is consumed (we advance). If we find a token that * begins with 'n' but is not 'null', then an error is returned. * @@ -25622,6 +80966,44 @@ class value { */ simdjson_inline simdjson_result is_null() noexcept; + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool + * + * You may use get_double(), get_bool(), get_uint64(), get_int64(), + * get_object(), get_array(), get_raw_json_string(), or get_string() instead. + * + * @returns A value of the given type, parsed from the JSON. + * @returns INCORRECT_TYPE If the JSON value is not the given type. + */ + template simdjson_inline simdjson_result get() & noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + /** @overload template simdjson_result get() & noexcept */ + template simdjson_inline simdjson_result get() && noexcept { + // Unless the simdjson library provides an inline implementation, calling this method should + // immediately fail. + static_assert(!sizeof(T), "The get method with given type is not implemented by the simdjson library."); + } + + /** + * Get this value as the given type. + * + * Supported types: object, array, raw_json_string, string_view, uint64_t, int64_t, double, bool, value + * + * Be mindful that the document instance must remain in scope while you are accessing object, array and value instances. + * + * @param out This is set to a value of the given type, parsed from the JSON. If there is an error, this may not be initialized. + * @returns INCORRECT_TYPE If the JSON value is not an object. + * @returns SUCCESS If the parse succeeded and the out parameter was set to the value. + */ + template simdjson_inline error_code get(T &out) & noexcept; + /** @overload template error_code get(T &out) & noexcept */ + template simdjson_inline error_code get(T &out) && noexcept; + #if SIMDJSON_EXCEPTIONS /** * Cast this JSON value to an array. @@ -25629,14 +81011,14 @@ class value { * @returns An object that can be used to iterate the array. * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an array. */ - simdjson_inline operator array() noexcept(false); + simdjson_inline operator array() & noexcept(false); /** * Cast this JSON value to an object. * * @returns An object that can be used to look up or iterate fields. * @exception simdjson_error(INCORRECT_TYPE) If the JSON value is not an object. */ - simdjson_inline operator object() noexcept(false); + simdjson_inline operator object() & noexcept(false); /** * Cast this JSON value to an unsigned integer. * @@ -25663,8 +81045,6 @@ class value { * * The string is guaranteed to be valid UTF-8. * - * Equivalent to get(). - * * @returns An UTF-8 string. The string is stored in the parser and will be invalidated the next * time it parses a document or when it is destroyed. * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not a string. @@ -25686,22 +81066,14 @@ class value { * @exception simdjson_error(INCORRECT_TYPE) if the JSON value is not true or false. */ simdjson_inline operator bool() noexcept(false); -#endif - - /** - * Begin array iteration. - * - * Part of the std::iterable interface. - * - * @returns INCORRECT_TYPE If the JSON value is not an array. - */ - simdjson_inline simdjson_result begin() & noexcept; /** - * Sentinel representing the end of the array. + * Cast this JSON value to a value. * - * Part of the std::iterable interface. + * @returns A value value. + * @exception if a JSON value cannot be found */ - simdjson_inline simdjson_result end() & noexcept; + simdjson_inline operator value() noexcept(false); +#endif /** * This method scans the array and counts the number of elements. * The count_elements method should always be called before you have begun @@ -25712,12 +81084,9 @@ class value { * beginning as if it had never been accessed. If the JSON is malformed (e.g., * there is a missing comma), then an error is returned and it is no longer * safe to continue. - * - * Performance hint: You should only call count_elements() as a last - * resort as it may require scanning the document twice or more. */ simdjson_inline simdjson_result count_elements() & noexcept; - /** + /** * This method scans the object and counts the number of key-value pairs. * The count_fields method should always be called before you have begun * iterating through the object: it is expected that you are pointing at @@ -25729,10 +81098,7 @@ class value { * safe to continue. * * To check that an object is empty, it is more performant to use - * the is_empty() method on the object instance. - * - * Performance hint: You should only call count_fields() as a last - * resort as it may require scanning the document twice or more. + * the is_empty() method. */ simdjson_inline simdjson_result count_fields() & noexcept; /** @@ -25742,7 +81108,20 @@ class value { * @return The value at the given index, or: * - INDEX_OUT_OF_BOUNDS if the array index is larger than an array length */ - simdjson_inline simdjson_result at(size_t index) noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + /** + * Begin array iteration. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result begin() & noexcept; + /** + * Sentinel representing the end of the array. + * + * Part of the std::iterable interface. + */ + simdjson_inline simdjson_result end() & noexcept; + /** * Look up a field by name on an object (order-sensitive). * @@ -25756,18 +81135,28 @@ class value { * double y = obj.find_field("y"); * double x = obj.find_field("x"); * ``` - * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful - * that only one field is returned. - + * * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. * + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to + * a key a single time. Doing object["mykey"].to_string()and then again object["mykey"].to_string() + * is an error. + * * @param key The key to look up. * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. */ - simdjson_inline simdjson_result find_field(std::string_view key) noexcept; - /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ - simdjson_inline simdjson_result find_field(const char *key) noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(const char *key) & noexcept; /** * Look up a field by name on an object, without regard to key order. @@ -25782,22 +81171,30 @@ class value { * default behavior failed to look up a field just because it was in the wrong order--and many * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. * - * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful - * that only one field is returned. - * * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the * field wasn't there when they aren't). * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. E.g., the array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * * @param key The key to look up. * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. */ - simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ - simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ - simdjson_inline simdjson_result operator[](std::string_view key) noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ - simdjson_inline simdjson_result operator[](const char *key) noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](const char *key) & noexcept; /** * Get the type of this JSON value. It does not validate or consume the value. @@ -25808,14 +81205,12 @@ class value { * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just * let it throw an exception). * - * @return The type of JSON value (json_type::array, json_type::object, json_type::string, - * json_type::number, json_type::boolean, or json_type::null). * @error TAPE_ERROR when the JSON value is a bad token like "}" "," or "alse". */ simdjson_inline simdjson_result type() noexcept; /** - * Checks whether the value is a scalar (string, number, null, Boolean). + * Checks whether the document is a scalar (string, number, null, Boolean). * Returns false when there it is an array or object. * * @returns true if the type is string, number, null, Boolean @@ -25824,22 +81219,18 @@ class value { simdjson_inline simdjson_result is_scalar() noexcept; /** - * Checks whether the value is a negative number. + * Checks whether the document is a negative number. * * @returns true if the number if negative. */ simdjson_inline bool is_negative() noexcept; /** - * Checks whether the value is an integer number. Note that + * Checks whether the document is an integer number. Note that * this requires to partially parse the number string. If * the value is determined to be an integer, it may still * not parse properly as an integer in subsequent steps * (e.g., it might overflow). * - * Performance note: if you call this function systematically - * before parsing a number, you may have fallen for a performance - * anti-pattern. - * * @returns true if the number if negative. */ simdjson_inline simdjson_result is_integer() noexcept; @@ -25879,454 +81270,88 @@ class value { * You can recover the value by calling number.get_int64() and you * have that number.is_int64() is true. * - * number.get_number_type() is number_type::unsigned_integer if we have - * an integer in [9223372036854775808,18446744073709551616) - * You can recover the value by calling number.get_uint64() and you - * have that number.is_uint64() is true. - * - * Otherwise, number.get_number_type() has value number_type::floating_point_number - * and we have a binary64 number. - * You can recover the value by calling number.get_double() and you - * have that number.is_double() is true. - * - * You must check the type before accessing the value: it is an error - * to call "get_int64()" when number.get_number_type() is not - * number_type::signed_integer and when number.is_int64() is false. - * - * Performance note: this is designed with performance in mind. When - * calling 'get_number()', you scan the number string only once, determining - * efficiently the type and storing it in an efficient manner. - */ - simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; - - - /** - * Get the raw JSON for this token. - * - * The string_view will always point into the input buffer. - * - * The string_view will start at the beginning of the token, and include the entire token - * *as well as all spaces until the next token (or EOF).* This means, for example, that a - * string token always begins with a " and is always terminated by the final ", possibly - * followed by a number of spaces. - * - * The string_view is *not* null-terminated. However, if this is a scalar (string, number, - * boolean, or null), the character after the end of the string_view is guaranteed to be - * a non-space token. - * - * Tokens include: - * - { - * - [ - * - "a string (possibly with UTF-8 or backslashed characters like \\\")". - * - -1.2e-100 - * - true - * - false - * - null - */ - simdjson_inline std::string_view raw_json_token() noexcept; - - /** - * Returns the current location in the document if in bounds. - */ - simdjson_inline simdjson_result current_location() noexcept; - - /** - * Returns the current depth in the document if in bounds. - * - * E.g., - * 0 = finished with document - * 1 = document root value (could be [ or {, not yet known) - * 2 = , or } inside root array/object - * 3 = key or value inside root array/object. - */ - simdjson_inline int32_t current_depth() const noexcept; - - /** - * Get the value associated with the given JSON pointer. We use the RFC 6901 - * https://tools.ietf.org/html/rfc6901 standard. - * - * ondemand::parser parser; - * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; - * auto doc = parser.iterate(json); - * doc.at_pointer("/foo/a/1") == 20 - * - * It is allowed for a key to be the empty string: - * - * ondemand::parser parser; - * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; - * auto doc = parser.iterate(json); - * doc.at_pointer("//a/1") == 20 - * - * Note that at_pointer() called on the document automatically calls the document's rewind - * method between each call. It invalidates all previously accessed arrays, objects and values - * that have not been consumed. - * - * Calling at_pointer() on non-document instances (e.g., arrays and objects) is not - * standardized (by RFC 6901). We provide some experimental support for JSON pointers - * on non-document instances. Yet it is not the case when calling at_pointer on an array - * or an object instance: there is no rewind and no invalidation. - * - * You may only call at_pointer on an array after it has been created, but before it has - * been first accessed. When calling at_pointer on an array, the pointer is advanced to - * the location indicated by the JSON pointer (in case of success). It is no longer possible - * to call at_pointer on the same array. - * - * You may call at_pointer more than once on an object, but each time the pointer is advanced - * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding - * key (as well as the current key) can no longer be used with following JSON pointer calls. - * - * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching - * - * @return The value associated with the given JSON pointer, or: - * - NO_SUCH_FIELD if a field does not exist in an object - * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length - * - INCORRECT_TYPE if a non-integer is used to access an array - * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed - */ - simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; - -protected: - /** - * Create a value. - */ - simdjson_inline value(const value_iterator &iter) noexcept; - - /** - * Skip this value, allowing iteration to continue. - */ - simdjson_inline void skip() noexcept; - - /** - * Start a value at the current position. - * - * (It should already be started; this is just a self-documentation method.) - */ - static simdjson_inline value start(const value_iterator &iter) noexcept; - - /** - * Resume a value. - */ - static simdjson_inline value resume(const value_iterator &iter) noexcept; - - /** - * Get the object, starting or resuming it as necessary - */ - simdjson_inline simdjson_result start_or_resume_object() noexcept; - - // simdjson_inline void log_value(const char *type) const noexcept; - // simdjson_inline void log_error(const char *message) const noexcept; - - value_iterator iter{}; - - friend class document; - friend class array_iterator; - friend class field; - friend class object; - friend struct simdjson_result; - friend struct simdjson_result; -}; - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { -public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - simdjson_inline simdjson_result() noexcept = default; - - simdjson_inline simdjson_result get_array() noexcept; - simdjson_inline simdjson_result get_object() noexcept; - - simdjson_inline simdjson_result get_uint64() noexcept; - simdjson_inline simdjson_result get_uint64_in_string() noexcept; - simdjson_inline simdjson_result get_int64() noexcept; - simdjson_inline simdjson_result get_int64_in_string() noexcept; - simdjson_inline simdjson_result get_double() noexcept; - simdjson_inline simdjson_result get_double_in_string() noexcept; - simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; - simdjson_inline simdjson_result get_wobbly_string() noexcept; - simdjson_inline simdjson_result get_raw_json_string() noexcept; - simdjson_inline simdjson_result get_bool() noexcept; - simdjson_inline simdjson_result is_null() noexcept; - - template simdjson_inline simdjson_result get() noexcept; - - template simdjson_inline error_code get(T &out) noexcept; - -#if SIMDJSON_EXCEPTIONS - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() noexcept(false); - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() noexcept(false); - simdjson_inline operator uint64_t() noexcept(false); - simdjson_inline operator int64_t() noexcept(false); - simdjson_inline operator double() noexcept(false); - simdjson_inline operator std::string_view() noexcept(false); - simdjson_inline operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false); - simdjson_inline operator bool() noexcept(false); -#endif - simdjson_inline simdjson_result count_elements() & noexcept; - simdjson_inline simdjson_result count_fields() & noexcept; - simdjson_inline simdjson_result at(size_t index) noexcept; - simdjson_inline simdjson_result begin() & noexcept; - simdjson_inline simdjson_result end() & noexcept; - - /** - * Look up a field by name on an object (order-sensitive). - * - * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the - * JSON `{ "x": 1, "y": 2, "z": 3 }`: - * - * ```c++ - * simdjson::ondemand::parser parser; - * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); - * double z = obj.find_field("z"); - * double y = obj.find_field("y"); - * double x = obj.find_field("x"); - * ``` - * - * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. - * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. - * - * @param key The key to look up. - * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. - */ - simdjson_inline simdjson_result find_field(std::string_view key) noexcept; - /** @overload simdjson_inline simdjson_result find_field(std::string_view key) noexcept; */ - simdjson_inline simdjson_result find_field(const char *key) noexcept; - - /** - * Look up a field by name on an object, without regard to key order. - * - * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies - * and often appears negligible. It starts out normally, starting out at the last field; but if - * the field is not found, it scans from the beginning of the object to see if it missed it. That - * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object - * in question is large. The fact that the extra code is there also bumps the executable size. - * - * It is the default, however, because it would be highly surprising (and hard to debug) if the - * default behavior failed to look up a field just because it was in the wrong order--and many - * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. - * - * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the - * field wasn't there when they aren't). - * - * @param key The key to look up. - * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. - */ - simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ - simdjson_inline simdjson_result find_field_unordered(const char *key) noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ - simdjson_inline simdjson_result operator[](std::string_view key) noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) noexcept; */ - simdjson_inline simdjson_result operator[](const char *key) noexcept; - - /** - * Get the type of this JSON value. - * - * NOTE: If you're only expecting a value to be one type (a typical case), it's generally - * better to just call .get_double, .get_string, etc. and check for INCORRECT_TYPE (or just - * let it throw an exception). - */ - simdjson_inline simdjson_result type() noexcept; - simdjson_inline simdjson_result is_scalar() noexcept; - simdjson_inline simdjson_result is_negative() noexcept; - simdjson_inline simdjson_result is_integer() noexcept; - simdjson_inline simdjson_result get_number_type() noexcept; - simdjson_inline simdjson_result get_number() noexcept; - - /** @copydoc simdjson_inline std::string_view value::raw_json_token() const noexcept */ - simdjson_inline simdjson_result raw_json_token() noexcept; - - /** @copydoc simdjson_inline simdjson_result current_location() noexcept */ - simdjson_inline simdjson_result current_location() noexcept; - /** @copydoc simdjson_inline int32_t current_depth() const noexcept */ - simdjson_inline simdjson_result current_depth() const noexcept; - simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; -}; - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/value.h */ -/* begin file include/simdjson/generic/ondemand/field.h */ - -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -/** - * A JSON field (key/value pair) in an object. - * - * Returned from object iteration. - * - * Extends from std::pair so you can use C++ algorithms that rely on pairs. - */ -class field : public std::pair { -public: - /** - * Create a new invalid field. - * - * Exists so you can declare a variable and later assign to it before use. - */ - simdjson_inline field() noexcept; - - /** - * Get the key as a string_view (for higher speed, consider raw_key). - * We deliberately use a more cumbersome name (unescaped_key) to force users - * to think twice about using it. - * - * This consumes the key: once you have called unescaped_key(), you cannot - * call it again nor can you call key(). - */ - simdjson_inline simdjson_warn_unused simdjson_result unescaped_key(bool allow_replacement) noexcept; - /** - * Get the key as a raw_json_string. Can be used for direct comparison with - * an unescaped C string: e.g., key() == "test". - */ - simdjson_inline raw_json_string key() const noexcept; - /** - * Get the field value. - */ - simdjson_inline ondemand::value &value() & noexcept; - /** - * @overload ondemand::value &ondemand::value() & noexcept - */ - simdjson_inline ondemand::value value() && noexcept; - -protected: - simdjson_inline field(raw_json_string key, ondemand::value &&value) noexcept; - static simdjson_inline simdjson_result start(value_iterator &parent_iter) noexcept; - static simdjson_inline simdjson_result start(const value_iterator &parent_iter, raw_json_string key) noexcept; - friend struct simdjson_result; - friend class object_iterator; -}; - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { -public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::field &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - simdjson_inline simdjson_result() noexcept = default; - - simdjson_inline simdjson_result unescaped_key(bool allow_replacement = false) noexcept; - simdjson_inline simdjson_result key() noexcept; - simdjson_inline simdjson_result value() noexcept; -}; - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/field.h */ -/* begin file include/simdjson/generic/ondemand/object.h */ - -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -/** - * A forward-only JSON object field iterator. - */ -class object { -public: - /** - * Create a new invalid object. - * - * Exists so you can declare a variable and later assign to it before use. - */ - simdjson_inline object() noexcept = default; - - simdjson_inline simdjson_result begin() noexcept; - simdjson_inline simdjson_result end() noexcept; - /** - * Look up a field by name on an object (order-sensitive). - * - * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the - * JSON `{ "x": 1, "y": 2, "z": 3 }`: - * - * ```c++ - * simdjson::ondemand::parser parser; - * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); - * double z = obj.find_field("z"); - * double y = obj.find_field("y"); - * double x = obj.find_field("x"); - * ``` - * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful - * that only one field is returned. - * - * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. - * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. - * - * You must consume the fields on an object one at a time. A request for a new key - * invalidates previous field values: it makes them unsafe. The value instance you get - * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array - * given by content["bids"].get_array() should not be accessed after you have called - * content["asks"].get_array(). You can detect such mistakes by first compiling and running - * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an - * OUT_OF_ORDER_ITERATION error is generated. + * number.get_number_type() is number_type::unsigned_integer if we have + * an integer in [9223372036854775808,18446744073709551616) + * You can recover the value by calling number.get_uint64() and you + * have that number.is_uint64() is true. * - * You are expected to access keys only once. You should access the value corresponding to a - * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() - * is an error. + * Otherwise, number.get_number_type() has value number_type::floating_point_number + * and we have a binary64 number. + * You can recover the value by calling number.get_double() and you + * have that number.is_double() is true. * - * @param key The key to look up. - * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + * You must check the type before accessing the value: it is an error + * to call "get_int64()" when number.get_number_type() is not + * number_type::signed_integer and when number.is_int64() is false. */ - simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; - /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ - simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + simdjson_warn_unused simdjson_inline simdjson_result get_number() noexcept; /** - * Look up a field by name on an object, without regard to key order. - * - * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies - * and often appears negligible. It starts out normally, starting out at the last field; but if - * the field is not found, it scans from the beginning of the object to see if it missed it. That - * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object - * in question is large. The fact that the extra code is there also bumps the executable size. - * - * It is the default, however, because it would be highly surprising (and hard to debug) if the - * default behavior failed to look up a field just because it was in the wrong order--and many - * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * Get the raw JSON for this token. * - * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the - * field wasn't there when they aren't). + * The string_view will always point into the input buffer. * - * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful - * that only one field is returned. + * The string_view will start at the beginning of the token, and include the entire token + * *as well as all spaces until the next token (or EOF).* This means, for example, that a + * string token always begins with a " and is always terminated by the final ", possibly + * followed by a number of spaces. * - * You must consume the fields on an object one at a time. A request for a new key - * invalidates previous field values: it makes them unsafe. The value instance you get - * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array - * given by content["bids"].get_array() should not be accessed after you have called - * content["asks"].get_array(). You can detect such mistakes by first compiling and running - * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an - * OUT_OF_ORDER_ITERATION error is generated. + * The string_view is *not* null-terminated. If this is a scalar (string, number, + * boolean, or null), the character after the end of the string_view may be the padded buffer. * - * You are expected to access keys only once. You should access the value corresponding to a key - * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error. + * Tokens include: + * - { + * - [ + * - "a string (possibly with UTF-8 or backslashed characters like \\\")". + * - -1.2e-100 + * - true + * - false + * - null + */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + /** + * Reset the iterator inside the document instance so we are pointing back at the + * beginning of the document, as if it had just been created. It invalidates all + * values, objects and arrays that you have created so far (including unescaped strings). + */ + inline void rewind() noexcept; + /** + * Returns debugging information. + */ + inline std::string to_debug_string() noexcept; + /** + * Some unrecoverable error conditions may render the document instance unusable. + * The is_alive() method returns true when the document is still suitable. + */ + inline bool is_alive() noexcept; + + /** + * Returns the current location in the document if in bounds. + */ + inline simdjson_result current_location() const noexcept; + + /** + * Returns true if this document has been fully parsed. + * If you have consumed the whole document and at_end() returns + * false, then there may be trailing content. + */ + inline bool at_end() const noexcept; + + /** + * Returns the current depth in the document if in bounds. * - * @param key The key to look up. - * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + * E.g., + * 0 = finished with document + * 1 = document root value (could be [ or {, not yet known) + * 2 = , or } inside root array/object + * 3 = key or value inside root array/object. */ - simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ - simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ - simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; - /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ - simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + simdjson_inline int32_t current_depth() const noexcept; /** - * Get the value associated with the given JSON pointer. We use the RFC 6901 - * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node - * as the root of its own JSON document. + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard. * * ondemand::parser parser; * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; @@ -26340,474 +81365,279 @@ class object { * auto doc = parser.iterate(json); * doc.at_pointer("//a/1") == 20 * - * Note that at_pointer() called on the document automatically calls the document's rewind - * method between each call. It invalidates all previously accessed arrays, objects and values - * that have not been consumed. Yet it is not the case when calling at_pointer on an object - * instance: there is no rewind and no invalidation. - * - * You may call at_pointer more than once on an object, but each time the pointer is advanced - * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding - * key (as well as the current key) can no longer be used with following JSON pointer calls. + * Note that at_pointer() automatically calls rewind between each call. Thus + * all values, objects and arrays that you have created so far (including unescaped strings) + * are invalidated. After calling at_pointer, you need to consume the result: string values + * should be stored in your own variables, arrays should be decoded and stored in your own array-like + * structures and so forth. * - * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching * * @return The value associated with the given JSON pointer, or: * - NO_SUCH_FIELD if a field does not exist in an object * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length * - INCORRECT_TYPE if a non-integer is used to access an array * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + * - SCALAR_DOCUMENT_AS_VALUE if the json_pointer is empty and the document is not a scalar (see is_scalar() function). */ - inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; - - /** - * Reset the iterator so that we are pointing back at the - * beginning of the object. You should still consume values only once even if you - * can iterate through the object more than once. If you unescape a string within - * the object more than once, you have unsafe code. Note that rewinding an object - * means that you may need to reparse it anew: it is not a free operation. - * - * @returns true if the object contains some elements (not empty) - */ - inline simdjson_result reset() & noexcept; - /** - * This method scans the beginning of the object and checks whether the - * object is empty. - * The runtime complexity is constant time. After - * calling this function, if successful, the object is 'rewinded' at its - * beginning as if it had never been accessed. If the JSON is malformed (e.g., - * there is a missing comma), then an error is returned and it is no longer - * safe to continue. - */ - inline simdjson_result is_empty() & noexcept; - /** - * This method scans the object and counts the number of key-value pairs. - * The count_fields method should always be called before you have begun - * iterating through the object: it is expected that you are pointing at - * the beginning of the object. - * The runtime complexity is linear in the size of the object. After - * calling this function, if successful, the object is 'rewinded' at its - * beginning as if it had never been accessed. If the JSON is malformed (e.g., - * there is a missing comma), then an error is returned and it is no longer - * safe to continue. - * - * To check that an object is empty, it is more performant to use - * the is_empty() method. - * - * Performance hint: You should only call count_fields() as a last - * resort as it may require scanning the document twice or more. - */ - simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; /** - * Consumes the object and returns a string_view instance corresponding to the - * object as represented in JSON. It points inside the original byte array containing + * Consumes the document and returns a string_view instance corresponding to the + * document as represented in JSON. It points inside the original byte array containing * the JSON document. */ simdjson_inline simdjson_result raw_json() noexcept; - protected: /** - * Go to the end of the object, no matter where you are right now. + * Consumes the document. */ simdjson_inline error_code consume() noexcept; - static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; - static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; - static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; - static simdjson_inline object resume(const value_iterator &iter) noexcept; - simdjson_inline object(const value_iterator &iter) noexcept; - - simdjson_warn_unused simdjson_inline error_code find_field_raw(const std::string_view key) noexcept; - - value_iterator iter{}; - - friend class value; - friend class document; - friend struct simdjson_result; -}; - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson -namespace simdjson { + simdjson_inline document(ondemand::json_iterator &&iter) noexcept; + simdjson_inline const uint8_t *text(uint32_t idx) const noexcept; -template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { -public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private - simdjson_inline simdjson_result() noexcept = default; + simdjson_inline value_iterator resume_value_iterator() noexcept; + simdjson_inline value_iterator get_root_value_iterator() noexcept; + simdjson_inline simdjson_result start_or_resume_object() noexcept; + static simdjson_inline document start(ondemand::json_iterator &&iter) noexcept; - simdjson_inline simdjson_result begin() noexcept; - simdjson_inline simdjson_result end() noexcept; - simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; - simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; - simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; - simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; - simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; - simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; - simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; - inline simdjson_result reset() noexcept; - inline simdjson_result is_empty() noexcept; - inline simdjson_result count_fields() & noexcept; - inline simdjson_result raw_json() noexcept; + // + // Fields + // + json_iterator iter{}; ///< Current position in the document + static constexpr depth_t DOCUMENT_DEPTH = 0; ///< document depth is always 0 + friend class array_iterator; + friend class value; + friend class ondemand::parser; + friend class object; + friend class array; + friend class field; + friend class token; + friend class document_stream; + friend class document_reference; }; -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/object.h */ -/* begin file include/simdjson/generic/ondemand/parser.h */ - -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -class array; -class object; -class value; -class raw_json_string; -class document_stream; - -/** - * The default batch size for document_stream instances for this On Demand kernel. - * Note that different On Demand kernel may use a different DEFAULT_BATCH_SIZE value - * in the future. - */ -static constexpr size_t DEFAULT_BATCH_SIZE = 1000000; -/** - * Some adversary might try to set the batch size to 0 or 1, which might cause problems. - * We set a minimum of 32B since anything else is highly likely to be an error. In practice, - * most users will want a much larger batch size. - * - * All non-negative MINIMAL_BATCH_SIZE values should be 'safe' except that, obviously, no JSON - * document can ever span 0 or 1 byte and that very large values would create memory allocation issues. - */ -static constexpr size_t MINIMAL_BATCH_SIZE = 32; /** - * A JSON fragment iterator. - * - * This holds the actual iterator as well as the buffer for writing strings. + * A document_reference is a thin wrapper around a document reference instance. */ -class parser { +class document_reference { public: - /** - * Create a JSON parser. - * - * The new parser will have zero capacity. - */ - inline explicit parser(size_t max_capacity = SIMDJSON_MAXSIZE_BYTES) noexcept; - - inline parser(parser &&other) noexcept = default; - simdjson_inline parser(const parser &other) = delete; - simdjson_inline parser &operator=(const parser &other) = delete; - simdjson_inline parser &operator=(parser &&other) noexcept = default; - - /** Deallocate the JSON parser. */ - inline ~parser() noexcept = default; - - /** - * Start iterating an on-demand JSON document. - * - * ondemand::parser parser; - * document doc = parser.iterate(json); - * - * It is expected that the content is a valid UTF-8 file, containing a valid JSON document. - * Otherwise the iterate method may return an error. In particular, the whole input should be - * valid: we do not attempt to tolerate incorrect content either before or after a JSON - * document. - * - * ### IMPORTANT: Validate what you use - * - * Calling iterate on an invalid JSON document may not immediately trigger an error. The call to - * iterate does not parse and validate the whole document. - * - * ### IMPORTANT: Buffer Lifetime - * - * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as - * long as the document iteration. - * - * ### IMPORTANT: Document Lifetime - * - * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during - * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before - * you call parse() again or destroy the parser. - * - * ### REQUIRED: Buffer Padding - * - * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what - * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you - * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the - * SIMDJSON_PADDING bytes to avoid runtime warnings. - * - * @param json The JSON to parse. - * @param len The length of the JSON. - * @param capacity The number of bytes allocated in the JSON (must be at least len+SIMDJSON_PADDING). - * - * @return The document, or an error: - * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. - * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory - * allocation fails. - * - EMPTY if the document is all whitespace. - * - UTF8_ERROR if the document is not valid UTF-8. - * - UNESCAPED_CHARS if a string contains control characters that must be escaped - * - UNCLOSED_STRING if there is an unclosed string in the document. - */ - simdjson_warn_unused simdjson_result iterate(padded_string_view json) & noexcept; - /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ - simdjson_warn_unused simdjson_result iterate(const char *json, size_t len, size_t capacity) & noexcept; - /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ - simdjson_warn_unused simdjson_result iterate(const uint8_t *json, size_t len, size_t capacity) & noexcept; - /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ - simdjson_warn_unused simdjson_result iterate(std::string_view json, size_t capacity) & noexcept; - /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ - simdjson_warn_unused simdjson_result iterate(const std::string &json) & noexcept; - /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ - simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; - /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ - simdjson_warn_unused simdjson_result iterate(const simdjson_result &json) & noexcept; - /** @overload simdjson_result iterate(padded_string_view json) & noexcept */ - simdjson_warn_unused simdjson_result iterate(padded_string &&json) & noexcept = delete; + simdjson_inline document_reference() noexcept; + simdjson_inline document_reference(document &d) noexcept; + simdjson_inline document_reference(const document_reference &other) noexcept = default; + simdjson_inline document_reference& operator=(const document_reference &other) noexcept = default; + simdjson_inline void rewind() noexcept; + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; - /** - * @private - * - * Start iterating an on-demand JSON document. - * - * ondemand::parser parser; - * json_iterator doc = parser.iterate(json); - * - * ### IMPORTANT: Buffer Lifetime - * - * Because parsing is done while you iterate, you *must* keep the JSON buffer around at least as - * long as the document iteration. - * - * ### IMPORTANT: Document Lifetime - * - * Only one iteration at a time can happen per parser, and the parser *must* be kept alive during - * iteration to ensure intermediate buffers can be accessed. Any document must be destroyed before - * you call parse() again or destroy the parser. - * - * The ondemand::document instance holds the iterator. The document must remain in scope - * while you are accessing instances of ondemand::value, ondemand::object, ondemand::array. - * - * ### REQUIRED: Buffer Padding - * - * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what - * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you - * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the - * SIMDJSON_PADDING bytes to avoid runtime warnings. - * - * @param json The JSON to parse. - * - * @return The iterator, or an error: - * - INSUFFICIENT_PADDING if the input has less than SIMDJSON_PADDING extra bytes. - * - MEMALLOC if realloc_if_needed the parser does not have enough capacity, and memory - * allocation fails. - * - EMPTY if the document is all whitespace. - * - UTF8_ERROR if the document is not valid UTF-8. - * - UNESCAPED_CHARS if a string contains control characters that must be escaped - * - UNCLOSED_STRING if there is an unclosed string in the document. - */ - simdjson_warn_unused simdjson_result iterate_raw(padded_string_view json) & noexcept; + simdjson_inline simdjson_result is_null() noexcept; + simdjson_inline simdjson_result raw_json() noexcept; + simdjson_inline operator document&() const noexcept; +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator array() & noexcept(false); + simdjson_inline operator object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; - /** - * Parse a buffer containing many JSON documents. - * - * auto json = R"({ "foo": 1 } { "foo": 2 } { "foo": 3 } )"_padded; - * ondemand::parser parser; - * ondemand::document_stream docs = parser.iterate_many(json); - * for (auto & doc : docs) { - * std::cout << doc["foo"] << std::endl; - * } - * // Prints 1 2 3 - * - * No copy of the input buffer is made. - * - * The function is lazy: it may be that no more than one JSON document at a time is parsed. - * - * The caller is responsabile to ensure that the input string data remains unchanged and is - * not deleted during the loop. - * - * ### Format - * - * The buffer must contain a series of one or more JSON documents, concatenated into a single - * buffer, separated by ASCII whitespace. It effectively parses until it has a fully valid document, - * then starts parsing the next document at that point. (It does this with more parallelism and - * lookahead than you might think, though.) - * - * documents that consist of an object or array may omit the whitespace between them, concatenating - * with no separator. Documents that consist of a single primitive (i.e. documents that are not - * arrays or objects) MUST be separated with ASCII whitespace. - * - * The characters inside a JSON document, and between JSON documents, must be valid Unicode (UTF-8). - * - * The documents must not exceed batch_size bytes (by default 1MB) or they will fail to parse. - * Setting batch_size to excessively large or excessively small values may impact negatively the - * performance. - * - * ### REQUIRED: Buffer Padding - * - * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what - * those bytes are initialized to, as long as they are allocated. These bytes will be read: if you - * using a sanitizer that verifies that no uninitialized byte is read, then you should initialize the - * SIMDJSON_PADDING bytes to avoid runtime warnings. - * - * ### Threads - * - * When compiled with SIMDJSON_THREADS_ENABLED, this method will use a single thread under the - * hood to do some lookahead. - * - * ### Parser Capacity - * - * If the parser's current capacity is less than batch_size, it will allocate enough capacity - * to handle it (up to max_capacity). - * - * @param buf The concatenated JSON to parse. - * @param len The length of the concatenated JSON. - * @param batch_size The batch size to use. MUST be larger than the largest document. The sweet - * spot is cache-related: small enough to fit in cache, yet big enough to - * parse as many documents as possible in one tight loop. - * Defaults to 10MB, which has been a reasonable sweet spot in our tests. - * @param allow_comma_separated (defaults on false) This allows a mode where the documents are - * separated by commas instead of whitespace. It comes with a performance - * penalty because the entire document is indexed at once (and the document must be - * less than 4 GB), and there is no multithreading. In this mode, the batch_size parameter - * is effectively ignored, as it is set to at least the document size. - * @return The stream, or an error. An empty input will yield 0 documents rather than an EMPTY error. Errors: - * - MEMALLOC if the parser does not have enough capacity and memory allocation fails - * - CAPACITY if the parser does not have enough capacity and batch_size > max_capacity. - * - other json errors if parsing fails. You should not rely on these errors to always the same for the - * same document: they may vary under runtime dispatch (so they may vary depending on your system and hardware). - */ - inline simdjson_result iterate_many(const uint8_t *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; - /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ - inline simdjson_result iterate_many(const char *buf, size_t len, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; - /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ - inline simdjson_result iterate_many(const std::string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; - inline simdjson_result iterate_many(const std::string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe - /** @overload parse_many(const uint8_t *buf, size_t len, size_t batch_size) */ - inline simdjson_result iterate_many(const padded_string &s, size_t batch_size = DEFAULT_BATCH_SIZE, bool allow_comma_separated = false) noexcept; - inline simdjson_result iterate_many(const padded_string &&s, size_t batch_size, bool allow_comma_separated = false) = delete;// unsafe + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; - /** @private We do not want to allow implicit conversion from C string to std::string. */ - simdjson_result iterate_many(const char *buf, size_t batch_size = DEFAULT_BATCH_SIZE) noexcept = delete; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + simdjson_inline simdjson_result raw_json_token() noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; +private: + document *doc{nullptr}; +}; +} // namespace ondemand +} // namespace westmere +} // namespace simdjson - /** The capacity of this parser (the largest document it can process). */ - simdjson_inline size_t capacity() const noexcept; - /** The maximum capacity of this parser (the largest document it is allowed to process). */ - simdjson_inline size_t max_capacity() const noexcept; - simdjson_inline void set_max_capacity(size_t max_capacity) noexcept; - /** - * The maximum depth of this parser (the most deeply nested objects and arrays it can process). - * This parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. - * The document's instance current_depth() method should be used to monitor the parsing - * depth and limit it if desired. - */ - simdjson_inline size_t max_depth() const noexcept; +namespace simdjson { - /** - * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length - * and `max_depth` depth. - * - * The max_depth parameter is only relevant when the macro SIMDJSON_DEVELOPMENT_CHECKS is set to true. - * The document's instance current_depth() method should be used to monitor the parsing - * depth and limit it if desired. - * - * @param capacity The new capacity. - * @param max_depth The new max_depth. Defaults to DEFAULT_MAX_DEPTH. - * @return The error, if there is one. - */ - simdjson_warn_unused error_code allocate(size_t capacity, size_t max_depth=DEFAULT_MAX_DEPTH) noexcept; +template<> +struct simdjson_result : public westmere::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(westmere::ondemand::document &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; - #ifdef SIMDJSON_THREADS_ENABLED - /** - * The parser instance can use threads when they are available to speed up some - * operations. It is enabled by default. Changing this attribute will change the - * behavior of the parser for future operations. - */ - bool threaded{true}; - #endif + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; - /** - * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. - * The result must be valid UTF-8. - * The provided pointer is advanced to the end of the string by reference, and a string_view instance - * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least - * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. - * - * This unescape function is a low-level function. If you want a more user-friendly approach, you should - * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() - * instead of get_raw_json_string()). - * - * ## IMPORTANT: string_view lifetime - * - * The string_view is only valid as long as the bytes in dst. - * - * @param raw_json_string input - * @param dst A pointer to a buffer at least large enough to write this string as well as - * an additional SIMDJSON_PADDING bytes. - * @param allow_replacement Whether we allow a replacement if the input string contains unmatched surrogate pairs. - * @return A string_view pointing at the unescaped string in dst - * @error STRING_ERROR if escapes are incorrect. - */ - simdjson_inline simdjson_result unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement = false) const noexcept; + template simdjson_inline simdjson_result get() & noexcept; + template simdjson_inline simdjson_result get() && noexcept; - /** - * Unescape this JSON string, replacing \\ with \, \n with newline, etc. to a user-provided buffer. - * The result may not be valid UTF-8. See https://simonsapin.github.io/wtf-8/ - * The provided pointer is advanced to the end of the string by reference, and a string_view instance - * is returned. You can ensure that your buffer is large enough by allocating a block of memory at least - * as large as the input JSON plus SIMDJSON_PADDING and then unescape all strings to this one buffer. - * - * This unescape function is a low-level function. If you want a more user-friendly approach, you should - * avoid raw_json_string instances (e.g., by calling unescaped_key() instead of key() or get_string() - * instead of get_raw_json_string()). - * - * ## IMPORTANT: string_view lifetime - * - * The string_view is only valid as long as the bytes in dst. - * - * @param raw_json_string input - * @param dst A pointer to a buffer at least large enough to write this string as well as - * an additional SIMDJSON_PADDING bytes. - * @return A string_view pointing at the unescaped string in dst - * @error STRING_ERROR if escapes are incorrect. - */ - simdjson_inline simdjson_result unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept; + template simdjson_inline error_code get(T &out) & noexcept; + template simdjson_inline error_code get(T &out) && noexcept; -private: - /** @private [for benchmarking access] The implementation to use */ - std::unique_ptr implementation{}; - size_t _capacity{0}; - size_t _max_capacity; - size_t _max_depth{DEFAULT_MAX_DEPTH}; - std::unique_ptr string_buf{}; -#if SIMDJSON_DEVELOPMENT_CHECKS - std::unique_ptr start_positions{}; +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator westmere::ondemand::array() & noexcept(false); + simdjson_inline operator westmere::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator westmere::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator westmere::ondemand::value() noexcept(false); #endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline int32_t current_depth() const noexcept; + simdjson_inline bool at_end() const noexcept; + simdjson_inline bool is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; - friend class json_iterator; - friend class document_stream; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; }; -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION + } // namespace simdjson + + namespace simdjson { template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +struct simdjson_result : public westmere::implementation_simdjson_result_base { public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::parser &&value) noexcept; ///< @private - simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result(westmere::ondemand::document_reference value, error_code error) noexcept; simdjson_inline simdjson_result() noexcept = default; + simdjson_inline error_code rewind() noexcept; + + simdjson_inline simdjson_result get_array() & noexcept; + simdjson_inline simdjson_result get_object() & noexcept; + simdjson_inline simdjson_result get_uint64() noexcept; + simdjson_inline simdjson_result get_uint64_in_string() noexcept; + simdjson_inline simdjson_result get_int64() noexcept; + simdjson_inline simdjson_result get_int64_in_string() noexcept; + simdjson_inline simdjson_result get_double() noexcept; + simdjson_inline simdjson_result get_double_in_string() noexcept; + simdjson_inline simdjson_result get_string(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result get_wobbly_string() noexcept; + simdjson_inline simdjson_result get_raw_json_string() noexcept; + simdjson_inline simdjson_result get_bool() noexcept; + simdjson_inline simdjson_result get_value() noexcept; + simdjson_inline simdjson_result is_null() noexcept; + +#if SIMDJSON_EXCEPTIONS + simdjson_inline operator westmere::ondemand::array() & noexcept(false); + simdjson_inline operator westmere::ondemand::object() & noexcept(false); + simdjson_inline operator uint64_t() noexcept(false); + simdjson_inline operator int64_t() noexcept(false); + simdjson_inline operator double() noexcept(false); + simdjson_inline operator std::string_view() noexcept(false); + simdjson_inline operator westmere::ondemand::raw_json_string() noexcept(false); + simdjson_inline operator bool() noexcept(false); + simdjson_inline operator westmere::ondemand::value() noexcept(false); +#endif + simdjson_inline simdjson_result count_elements() & noexcept; + simdjson_inline simdjson_result count_fields() & noexcept; + simdjson_inline simdjson_result at(size_t index) & noexcept; + simdjson_inline simdjson_result begin() & noexcept; + simdjson_inline simdjson_result end() & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(const char *key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](const char *key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(const char *key) & noexcept; + simdjson_inline simdjson_result type() noexcept; + simdjson_inline simdjson_result is_scalar() noexcept; + simdjson_inline simdjson_result current_location() noexcept; + simdjson_inline simdjson_result current_depth() const noexcept; + simdjson_inline simdjson_result is_negative() noexcept; + simdjson_inline simdjson_result is_integer() noexcept; + simdjson_inline simdjson_result get_number_type() noexcept; + simdjson_inline simdjson_result get_number() noexcept; + /** @copydoc simdjson_inline std::string_view document_reference::raw_json_token() const noexcept */ + simdjson_inline simdjson_result raw_json_token() noexcept; + + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; }; + } // namespace simdjson -/* end file include/simdjson/generic/ondemand/parser.h */ -/* begin file include/simdjson/generic/ondemand/document_stream.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_H +/* end file simdjson/generic/ondemand/document.h for westmere */ +/* including simdjson/generic/ondemand/document_stream.h for westmere: #include "simdjson/generic/ondemand/document_stream.h" */ +/* begin file simdjson/generic/ondemand/document_stream.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + #ifdef SIMDJSON_THREADS_ENABLED #include #include @@ -26815,13 +81645,9 @@ struct simdjson_result : publ #endif namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -class parser; -class json_iterator; -class document; - #ifdef SIMDJSON_THREADS_ENABLED /** @private Custom worker class **/ struct stage1_worker { @@ -27097,50 +81923,469 @@ class document_stream { /** Indicates whether we use threads. Note that this needs to be a constant during the execution of the parsing. */ bool use_thread; - inline void load_from_stage1_thread() noexcept; + inline void load_from_stage1_thread() noexcept; + + /** Start a thread to run stage 1 on the next batch. */ + inline void start_stage1_thread() noexcept; + + /** Wait for the stage 1 thread to finish and capture the results. */ + inline void finish_stage1_thread() noexcept; + + /** The error returned from the stage 1 thread. */ + error_code stage1_thread_error{UNINITIALIZED}; + /** The thread used to run stage 1 against the next batch in the background. */ + std::unique_ptr worker{new(std::nothrow) stage1_worker()}; + /** + * The parser used to run stage 1 in the background. Will be swapped + * with the regular parser when finished. + */ + ondemand::parser stage1_thread_parser{}; + + friend struct stage1_worker; + #endif // SIMDJSON_THREADS_ENABLED + + friend class parser; + friend class document; + friend class json_iterator; + friend struct simdjson_result; + friend struct internal::simdjson_result_base; +}; // document_stream + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { +template<> +struct simdjson_result : public westmere::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(westmere::ondemand::document_stream &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_H +/* end file simdjson/generic/ondemand/document_stream.h for westmere */ +/* including simdjson/generic/ondemand/field.h for westmere: #include "simdjson/generic/ondemand/field.h" */ +/* begin file simdjson/generic/ondemand/field.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +/** + * A JSON field (key/value pair) in an object. + * + * Returned from object iteration. + * + * Extends from std::pair so you can use C++ algorithms that rely on pairs. + */ +class field : public std::pair { +public: + /** + * Create a new invalid field. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline field() noexcept; + + /** + * Get the key as a string_view (for higher speed, consider raw_key). + * We deliberately use a more cumbersome name (unescaped_key) to force users + * to think twice about using it. + * + * This consumes the key: once you have called unescaped_key(), you cannot + * call it again nor can you call key(). + */ + simdjson_inline simdjson_warn_unused simdjson_result unescaped_key(bool allow_replacement) noexcept; + /** + * Get the key as a raw_json_string. Can be used for direct comparison with + * an unescaped C string: e.g., key() == "test". + */ + simdjson_inline raw_json_string key() const noexcept; + /** + * Get the field value. + */ + simdjson_inline ondemand::value &value() & noexcept; + /** + * @overload ondemand::value &ondemand::value() & noexcept + */ + simdjson_inline ondemand::value value() && noexcept; + +protected: + simdjson_inline field(raw_json_string key, ondemand::value &&value) noexcept; + static simdjson_inline simdjson_result start(value_iterator &parent_iter) noexcept; + static simdjson_inline simdjson_result start(const value_iterator &parent_iter, raw_json_string key) noexcept; + friend struct simdjson_result; + friend class object_iterator; +}; + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public westmere::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(westmere::ondemand::field &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result unescaped_key(bool allow_replacement = false) noexcept; + simdjson_inline simdjson_result key() noexcept; + simdjson_inline simdjson_result value() noexcept; +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_H +/* end file simdjson/generic/ondemand/field.h for westmere */ +/* including simdjson/generic/ondemand/object.h for westmere: #include "simdjson/generic/ondemand/object.h" */ +/* begin file simdjson/generic/ondemand/object.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +/** + * A forward-only JSON object field iterator. + */ +class object { +public: + /** + * Create a new invalid object. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + /** + * Look up a field by name on an object (order-sensitive). + * + * The following code reads z, then y, then x, and thus will not retrieve x or y if fed the + * JSON `{ "x": 1, "y": 2, "z": 3 }`: + * + * ```c++ + * simdjson::ondemand::parser parser; + * auto obj = parser.parse(R"( { "x": 1, "y": 2, "z": 3 } )"_padded); + * double z = obj.find_field("z"); + * double y = obj.find_field("y"); + * double x = obj.find_field("x"); + * ``` + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * **Raw Keys:** The lookup will be done against the *raw* key, and will not unescape keys. + * e.g. `object["a"]` will match `{ "a": 1 }`, but will *not* match `{ "\u0061": 1 }`. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a + * key a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() + * is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + + /** + * Look up a field by name on an object, without regard to key order. + * + * **Performance Notes:** This is a bit less performant than find_field(), though its effect varies + * and often appears negligible. It starts out normally, starting out at the last field; but if + * the field is not found, it scans from the beginning of the object to see if it missed it. That + * missing case has a non-cache-friendly bump and lots of extra scanning, especially if the object + * in question is large. The fact that the extra code is there also bumps the executable size. + * + * It is the default, however, because it would be highly surprising (and hard to debug) if the + * default behavior failed to look up a field just because it was in the wrong order--and many + * APIs assume this. Therefore, you must be explicit if you want to treat objects as out of order. + * + * Use find_field() if you are sure fields will be in order (or are willing to treat it as if the + * field wasn't there when they aren't). + * + * If you have multiple fields with a matching key ({"x": 1, "x": 1}) be mindful + * that only one field is returned. + * + * You must consume the fields on an object one at a time. A request for a new key + * invalidates previous field values: it makes them unsafe. The value instance you get + * from `content["bids"]` becomes invalid when you call `content["asks"]`. The array + * given by content["bids"].get_array() should not be accessed after you have called + * content["asks"].get_array(). You can detect such mistakes by first compiling and running + * the code in Debug mode (or with the macro `SIMDJSON_DEVELOPMENT_CHECKS` set to 1): an + * OUT_OF_ORDER_ITERATION error is generated. + * + * You are expected to access keys only once. You should access the value corresponding to a key + * a single time. Doing object["mykey"].to_string() and then again object["mykey"].to_string() is an error. + * + * @param key The key to look up. + * @returns The value of the field, or NO_SUCH_FIELD if the field is not in the object. + */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + /** @overload simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; */ + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + + /** + * Get the value associated with the given JSON pointer. We use the RFC 6901 + * https://tools.ietf.org/html/rfc6901 standard, interpreting the current node + * as the root of its own JSON document. + * + * ondemand::parser parser; + * auto json = R"({ "foo": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("/foo/a/1") == 20 + * + * It is allowed for a key to be the empty string: + * + * ondemand::parser parser; + * auto json = R"({ "": { "a": [ 10, 20, 30 ] }})"_padded; + * auto doc = parser.iterate(json); + * doc.at_pointer("//a/1") == 20 + * + * Note that at_pointer() called on the document automatically calls the document's rewind + * method between each call. It invalidates all previously accessed arrays, objects and values + * that have not been consumed. Yet it is not the case when calling at_pointer on an object + * instance: there is no rewind and no invalidation. + * + * You may call at_pointer more than once on an object, but each time the pointer is advanced + * to be within the value matched by the key indicated by the JSON pointer query. Thus any preceding + * key (as well as the current key) can no longer be used with following JSON pointer calls. + * + * Also note that at_pointer() relies on find_field() which implies that we do not unescape keys when matching. + * + * @return The value associated with the given JSON pointer, or: + * - NO_SUCH_FIELD if a field does not exist in an object + * - INDEX_OUT_OF_BOUNDS if an array index is larger than an array length + * - INCORRECT_TYPE if a non-integer is used to access an array + * - INVALID_JSON_POINTER if the JSON pointer is invalid and cannot be parsed + */ + inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + + /** + * Reset the iterator so that we are pointing back at the + * beginning of the object. You should still consume values only once even if you + * can iterate through the object more than once. If you unescape a string within + * the object more than once, you have unsafe code. Note that rewinding an object + * means that you may need to reparse it anew: it is not a free operation. + * + * @returns true if the object contains some elements (not empty) + */ + inline simdjson_result reset() & noexcept; + /** + * This method scans the beginning of the object and checks whether the + * object is empty. + * The runtime complexity is constant time. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + */ + inline simdjson_result is_empty() & noexcept; + /** + * This method scans the object and counts the number of key-value pairs. + * The count_fields method should always be called before you have begun + * iterating through the object: it is expected that you are pointing at + * the beginning of the object. + * The runtime complexity is linear in the size of the object. After + * calling this function, if successful, the object is 'rewinded' at its + * beginning as if it had never been accessed. If the JSON is malformed (e.g., + * there is a missing comma), then an error is returned and it is no longer + * safe to continue. + * + * To check that an object is empty, it is more performant to use + * the is_empty() method. + * + * Performance hint: You should only call count_fields() as a last + * resort as it may require scanning the document twice or more. + */ + simdjson_inline simdjson_result count_fields() & noexcept; + /** + * Consumes the object and returns a string_view instance corresponding to the + * object as represented in JSON. It points inside the original byte array containing + * the JSON document. + */ + simdjson_inline simdjson_result raw_json() noexcept; + +protected: + /** + * Go to the end of the object, no matter where you are right now. + */ + simdjson_inline error_code consume() noexcept; + static simdjson_inline simdjson_result start(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result start_root(value_iterator &iter) noexcept; + static simdjson_inline simdjson_result started(value_iterator &iter) noexcept; + static simdjson_inline object resume(const value_iterator &iter) noexcept; + simdjson_inline object(const value_iterator &iter) noexcept; + + simdjson_warn_unused simdjson_inline error_code find_field_raw(const std::string_view key) noexcept; + + value_iterator iter{}; + + friend class value; + friend class document; + friend struct simdjson_result; +}; + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +template<> +struct simdjson_result : public westmere::implementation_simdjson_result_base { +public: + simdjson_inline simdjson_result(westmere::ondemand::object &&value) noexcept; ///< @private + simdjson_inline simdjson_result(error_code error) noexcept; ///< @private + simdjson_inline simdjson_result() noexcept = default; + + simdjson_inline simdjson_result begin() noexcept; + simdjson_inline simdjson_result end() noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field(std::string_view key) && noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) & noexcept; + simdjson_inline simdjson_result find_field_unordered(std::string_view key) && noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) & noexcept; + simdjson_inline simdjson_result operator[](std::string_view key) && noexcept; + simdjson_inline simdjson_result at_pointer(std::string_view json_pointer) noexcept; + inline simdjson_result reset() noexcept; + inline simdjson_result is_empty() noexcept; + inline simdjson_result count_fields() & noexcept; + inline simdjson_result raw_json() noexcept; + +}; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_H +/* end file simdjson/generic/ondemand/object.h for westmere */ +/* including simdjson/generic/ondemand/object_iterator.h for westmere: #include "simdjson/generic/ondemand/object_iterator.h" */ +/* begin file simdjson/generic/ondemand/object_iterator.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +class object_iterator { +public: + /** + * Create a new invalid object_iterator. + * + * Exists so you can declare a variable and later assign to it before use. + */ + simdjson_inline object_iterator() noexcept = default; - /** Start a thread to run stage 1 on the next batch. */ - inline void start_stage1_thread() noexcept; + // + // Iterator interface + // - /** Wait for the stage 1 thread to finish and capture the results. */ - inline void finish_stage1_thread() noexcept; + // Reads key and value, yielding them to the user. + // MUST ONLY BE CALLED ONCE PER ITERATION. + simdjson_inline simdjson_result operator*() noexcept; + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const object_iterator &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const object_iterator &) const noexcept; + // Checks for ']' and ',' + simdjson_inline object_iterator &operator++() noexcept; - /** The error returned from the stage 1 thread. */ - error_code stage1_thread_error{UNINITIALIZED}; - /** The thread used to run stage 1 against the next batch in the background. */ - std::unique_ptr worker{new(std::nothrow) stage1_worker()}; +private: /** - * The parser used to run stage 1 in the background. Will be swapped - * with the regular parser when finished. + * The underlying JSON iterator. + * + * PERF NOTE: expected to be elided in favor of the parent document: this is set when the object + * is first used, and never changes afterwards. */ - ondemand::parser stage1_thread_parser{}; - - friend struct stage1_worker; - #endif // SIMDJSON_THREADS_ENABLED + value_iterator iter{}; - friend class parser; - friend class document; - friend class json_iterator; - friend struct simdjson_result; - friend struct internal::simdjson_result_base; -}; // document_stream + simdjson_inline object_iterator(const value_iterator &iter) noexcept; + friend struct simdjson_result; + friend class object; +}; } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { + template<> -struct simdjson_result : public SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base { +struct simdjson_result : public westmere::implementation_simdjson_result_base { public: - simdjson_inline simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_stream &&value) noexcept; ///< @private + simdjson_inline simdjson_result(westmere::ondemand::object_iterator &&value) noexcept; ///< @private simdjson_inline simdjson_result(error_code error) noexcept; ///< @private simdjson_inline simdjson_result() noexcept = default; + + // + // Iterator interface + // + + // Reads key and value, yielding them to the user. + simdjson_inline simdjson_result operator*() noexcept; // MUST ONLY BE CALLED ONCE PER ITERATION. + // Assumes it's being compared with the end. true if depth < iter->depth. + simdjson_inline bool operator==(const simdjson_result &) const noexcept; + // Assumes it's being compared with the end. true if depth >= iter->depth. + simdjson_inline bool operator!=(const simdjson_result &) const noexcept; + // Checks for ']' and ',' + simdjson_inline simdjson_result &operator++() noexcept; }; } // namespace simdjson -/* end file include/simdjson/generic/ondemand/document_stream.h */ -/* begin file include/simdjson/generic/ondemand/serialization.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_H +/* end file simdjson/generic/ondemand/object_iterator.h for westmere */ +/* including simdjson/generic/ondemand/serialization.h for westmere: #include "simdjson/generic/ondemand/serialization.h" */ +/* begin file simdjson/generic/ondemand/serialization.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ namespace simdjson { /** @@ -27148,30 +82393,30 @@ namespace simdjson { * contains JSON text that is suitable to be parsed as JSON again. It does not * validate the content. */ -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& x) noexcept; +inline simdjson_result to_json_string(westmere::ondemand::document& x) noexcept; /** * Create a string-view instance out of a value instance. The string-view instance * contains JSON text that is suitable to be parsed as JSON again. The value must * not have been accessed previously. It does not * validate the content. */ -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value& x) noexcept; +inline simdjson_result to_json_string(westmere::ondemand::value& x) noexcept; /** * Create a string-view instance out of an object instance. The string-view instance * contains JSON text that is suitable to be parsed as JSON again. It does not * validate the content. */ -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object& x) noexcept; +inline simdjson_result to_json_string(westmere::ondemand::object& x) noexcept; /** * Create a string-view instance out of an array instance. The string-view instance * contains JSON text that is suitable to be parsed as JSON again. It does not * validate the content. */ -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array& x) noexcept; -inline simdjson_result to_json_string(simdjson_result x); -inline simdjson_result to_json_string(simdjson_result x); -inline simdjson_result to_json_string(simdjson_result x); -inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(westmere::ondemand::array& x) noexcept; +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); +inline simdjson_result to_json_string(simdjson_result x); } // namespace simdjson /** @@ -27181,7 +82426,7 @@ inline simdjson_result to_json_string(simdjson_result x); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); #endif /** * Print JSON to an output stream. It does not @@ -27203,9 +82448,9 @@ inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); #endif /** * Print JSON to an output stream. It does not @@ -27215,13 +82460,13 @@ inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); #endif -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference& value); +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::document_reference& value); #if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x); #endif /** * Print JSON to an output stream. It does not @@ -27231,3306 +82476,3556 @@ inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x); #endif -}}} // namespace simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand -/* end file include/simdjson/generic/ondemand/serialization.h */ -/* end file include/simdjson/generic/ondemand.h */ +}}} // namespace simdjson::westmere::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_H +/* end file simdjson/generic/ondemand/serialization.h for westmere */ // Inline definitions -/* begin file include/simdjson/generic/implementation_simdjson_result_base-inl.h */ +/* including simdjson/generic/ondemand/array-inl.h for westmere: #include "simdjson/generic/ondemand/array-inl.h" */ +/* begin file simdjson/generic/ondemand/array-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { +namespace ondemand { // -// internal::implementation_simdjson_result_base inline implementation +// ### Live States +// +// While iterating or looking up values, depth >= iter->depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the array is first found and the iterator is just past the `{`. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the `,` before the next value (or `]`). In this state, +// depth == iter->depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter->depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter->depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the array iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet element may be missing or not be an +// array--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter->depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between elements, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter->depth == depth, and at_start == false. +// +// ## Terminal State +// +// The terminal state has iter->depth < depth. at_start is always false. +// +// - Finished: When we have reached a `]` or have reported an error, we are finished. We signal this +// by decrementing depth. In this state, iter->depth < depth, at_start == false, and +// error == SUCCESS. // -template -simdjson_inline void implementation_simdjson_result_base::tie(T &value, error_code &error) && noexcept { - error = this->second; - if (!error) { - value = std::forward>(*this).first; - } -} - -template -simdjson_warn_unused simdjson_inline error_code implementation_simdjson_result_base::get(T &value) && noexcept { - error_code error; - std::forward>(*this).tie(value, error); - return error; -} - -template -simdjson_inline error_code implementation_simdjson_result_base::error() const noexcept { - return this->second; -} - -#if SIMDJSON_EXCEPTIONS - -template -simdjson_inline T& implementation_simdjson_result_base::value() & noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return this->first; -} - -template -simdjson_inline T&& implementation_simdjson_result_base::value() && noexcept(false) { - return std::forward>(*this).take_value(); -} - -template -simdjson_inline T&& implementation_simdjson_result_base::take_value() && noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return std::forward(this->first); -} - -template -simdjson_inline implementation_simdjson_result_base::operator T&&() && noexcept(false) { - return std::forward>(*this).take_value(); -} - -#endif // SIMDJSON_EXCEPTIONS - -template -simdjson_inline const T& implementation_simdjson_result_base::value_unsafe() const& noexcept { - return this->first; +simdjson_inline array::array(const value_iterator &_iter) noexcept + : iter{_iter} +{ } -template -simdjson_inline T& implementation_simdjson_result_base::value_unsafe() & noexcept { - return this->first; +simdjson_inline simdjson_result array::start(value_iterator &iter) noexcept { + // We don't need to know if the array is empty to start iteration, but we do want to know if there + // is an error--thus `simdjson_unused`. + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_array().get(has_value) ); + return array(iter); } - -template -simdjson_inline T&& implementation_simdjson_result_base::value_unsafe() && noexcept { - return std::forward(this->first); +simdjson_inline simdjson_result array::start_root(value_iterator &iter) noexcept { + simdjson_unused bool has_value; + SIMDJSON_TRY( iter.start_root_array().get(has_value) ); + return array(iter); } - -template -simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value, error_code error) noexcept - : first{std::forward(value)}, second{error} {} -template -simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(error_code error) noexcept - : implementation_simdjson_result_base(T{}, error) {} -template -simdjson_inline implementation_simdjson_result_base::implementation_simdjson_result_base(T &&value) noexcept - : implementation_simdjson_result_base(std::forward(value), SUCCESS) {} - -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson -/* end file include/simdjson/generic/implementation_simdjson_result_base-inl.h */ -/* begin file include/simdjson/generic/ondemand-inl.h */ -/* begin file include/simdjson/generic/ondemand/json_type-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept { - switch (type) { - case json_type::array: out << "array"; break; - case json_type::object: out << "object"; break; - case json_type::number: out << "number"; break; - case json_type::string: out << "string"; break; - case json_type::boolean: out << "boolean"; break; - case json_type::null: out << "null"; break; - default: SIMDJSON_UNREACHABLE(); - } - return out; +simdjson_inline simdjson_result array::started(value_iterator &iter) noexcept { + bool has_value; + SIMDJSON_TRY(iter.started_array().get(has_value)); + return array(iter); } -#if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false) { - return out << type.value(); -} +simdjson_inline simdjson_result array::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } #endif - - - -simdjson_inline number_type number::get_number_type() const noexcept { - return type; -} - -simdjson_inline bool number::is_uint64() const noexcept { - return get_number_type() == number_type::unsigned_integer; -} - -simdjson_inline uint64_t number::get_uint64() const noexcept { - return payload.unsigned_integer; -} - -simdjson_inline number::operator uint64_t() const noexcept { - return get_uint64(); -} - - -simdjson_inline bool number::is_int64() const noexcept { - return get_number_type() == number_type::signed_integer; -} - -simdjson_inline int64_t number::get_int64() const noexcept { - return payload.signed_integer; -} - -simdjson_inline number::operator int64_t() const noexcept { - return get_int64(); -} - -simdjson_inline bool number::is_double() const noexcept { - return get_number_type() == number_type::floating_point_number; -} - -simdjson_inline double number::get_double() const noexcept { - return payload.floating_point_number; -} - -simdjson_inline number::operator double() const noexcept { - return get_double(); -} - -simdjson_inline double number::as_double() const noexcept { - if(is_double()) { - return payload.floating_point_number; - } - if(is_int64()) { - return double(payload.signed_integer); - } - return double(payload.unsigned_integer); -} - -simdjson_inline void number::append_s64(int64_t value) noexcept { - payload.signed_integer = value; - type = number_type::signed_integer; -} - -simdjson_inline void number::append_u64(uint64_t value) noexcept { - payload.unsigned_integer = value; - type = number_type::unsigned_integer; -} - -simdjson_inline void number::append_double(double value) noexcept { - payload.floating_point_number = value; - type = number_type::floating_point_number; -} - -simdjson_inline void number::skip_double() noexcept { - type = number_type::floating_point_number; -} - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_type &&value) noexcept - : implementation_simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : implementation_simdjson_result_base(error) {} - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/json_type-inl.h */ -/* begin file include/simdjson/generic/ondemand/logger-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { -namespace logger { - -static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; -static constexpr const int LOG_EVENT_LEN = 20; -static constexpr const int LOG_BUFFER_LEN = 30; -static constexpr const int LOG_SMALL_BUFFER_LEN = 10; -static int log_depth = 0; // Not threadsafe. Log only. - -// Helper to turn unprintable or newline characters into spaces -static inline char printable_char(char c) { - if (c >= 0x20) { - return c; - } else { - return ' '; - } -} - -inline void log_event(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { - log_line(iter, "", type, detail, delta, depth_delta); -} - -inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { - log_line(iter, index, depth, "", type, detail); -} -inline void log_value(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { - log_line(iter, "", type, detail, delta, depth_delta); -} - -inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { - log_line(iter, index, depth, "+", type, detail); - if (LOG_ENABLED) { log_depth++; } -} -inline void log_start_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { - log_line(iter, "+", type, "", delta, depth_delta); - if (LOG_ENABLED) { log_depth++; } -} - -inline void log_end_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { - if (LOG_ENABLED) { log_depth--; } - log_line(iter, "-", type, "", delta, depth_delta); -} - -inline void log_error(const json_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { - log_line(iter, "ERROR: ", error, detail, delta, depth_delta); -} -inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail) noexcept { - log_line(iter, index, depth, "ERROR: ", error, detail); -} - -inline void log_event(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { - log_event(iter.json_iter(), type, detail, delta, depth_delta); -} - -inline void log_value(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { - log_value(iter.json_iter(), type, detail, delta, depth_delta); -} - -inline void log_start_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { - log_start_value(iter.json_iter(), type, delta, depth_delta); -} - -inline void log_end_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { - log_end_value(iter.json_iter(), type, delta, depth_delta); -} - -inline void log_error(const value_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { - log_error(iter.json_iter(), error, detail, delta, depth_delta); -} - -inline void log_headers() noexcept { - if (LOG_ENABLED) { - // Technically a static variable is not thread-safe, but if you are using threads - // and logging... well... - static bool displayed_hint{false}; - log_depth = 0; - printf("\n"); - if(!displayed_hint) { - // We only print this helpful header once. - printf("# Logging provides the depth and position of the iterator user-visible steps:\n"); - printf("# +array says 'this is where we were when we discovered the start array'\n"); - printf("# -array says 'this is where we were when we ended the array'\n"); - printf("# skip says 'this is a structural or value I am skipping'\n"); - printf("# +/-skip says 'this is a start/end array or object I am skipping'\n"); - printf("#\n"); - printf("# The indentation of the terms (array, string,...) indicates the depth,\n"); - printf("# in addition to the depth being displayed.\n"); - printf("#\n"); - printf("# Every token in the document has a single depth determined by the tokens before it,\n"); - printf("# and is not affected by what the token actually is.\n"); - printf("#\n"); - printf("# Not all structural elements are presented as tokens in the logs.\n"); - printf("#\n"); - printf("# We never give control to the user within an empty array or an empty object.\n"); - printf("#\n"); - printf("# Inside an array, having a depth greater than the array's depth means that\n"); - printf("# we are pointing inside a value.\n"); - printf("# Having a depth equal to the array means that we are pointing right before a value.\n"); - printf("# Having a depth smaller than the array means that we have moved beyond the array.\n"); - displayed_hint = true; - } - printf("\n"); - printf("| %-*s ", LOG_EVENT_LEN, "Event"); - printf("| %-*s ", LOG_BUFFER_LEN, "Buffer"); - printf("| %-*s ", LOG_SMALL_BUFFER_LEN, "Next"); - // printf("| %-*s ", 5, "Next#"); - printf("| %-*s ", 5, "Depth"); - printf("| Detail "); - printf("|\n"); - - printf("|%.*s", LOG_EVENT_LEN+2, DASHES); - printf("|%.*s", LOG_BUFFER_LEN+2, DASHES); - printf("|%.*s", LOG_SMALL_BUFFER_LEN+2, DASHES); - // printf("|%.*s", 5+2, DASHES); - printf("|%.*s", 5+2, DASHES); - printf("|--------"); - printf("|\n"); - fflush(stdout); - } -} - -inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta) noexcept { - log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail); -} -inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail) noexcept { - if (LOG_ENABLED) { - const int indent = depth*2; - const auto buf = iter.token.buf; - printf("| %*s%s%-*s ", - indent, "", - title_prefix, - LOG_EVENT_LEN - indent - int(strlen(title_prefix)), title - ); - { - // Print the current structural. - printf("| "); - // Before we begin, the index might point right before the document. - // This could be unsafe, see https://github.com/simdjson/simdjson/discussions/1938 - if(index < iter._root) { - printf("%*s", LOG_BUFFER_LEN, ""); - } else { - auto current_structural = &buf[*index]; - for (int i=0;i(buf); } - - -simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(std::string_view target) noexcept { - size_t pos{0}; - // if the content has no escape character, just scan through it quickly! - for(;pos < target.size() && target[pos] != '\\';pos++) {} - // slow path may begin. - bool escaping{false}; - for(;pos < target.size();pos++) { - if((target[pos] == '"') && !escaping) { - return false; - } else if(target[pos] == '\\') { - escaping = !escaping; - } else { - escaping = false; - } - } - return true; -} - -simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(const char* target) noexcept { - size_t pos{0}; - // if the content has no escape character, just scan through it quickly! - for(;target[pos] && target[pos] != '\\';pos++) {} - // slow path may begin. - bool escaping{false}; - for(;target[pos];pos++) { - if((target[pos] == '"') && !escaping) { - return false; - } else if(target[pos] == '\\') { - escaping = !escaping; - } else { - escaping = false; - } - } - return true; -} - - -simdjson_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept { - // If we are going to call memcmp, then we must know something about the length of the raw_json_string. - return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); -} - -simdjson_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept { - // Assumptions: does not contain unescaped quote characters, and - // the raw content is quote terminated within a valid JSON string. - if(target.size() <= SIMDJSON_PADDING) { - return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); - } - const char * r{raw()}; - size_t pos{0}; - for(;pos < target.size();pos++) { - if(r[pos] != target[pos]) { return false; } - } - if(r[pos] != '"') { return false; } - return true; -} - -simdjson_inline bool raw_json_string::is_equal(std::string_view target) const noexcept { - const char * r{raw()}; - size_t pos{0}; - bool escaping{false}; - for(;pos < target.size();pos++) { - if(r[pos] != target[pos]) { return false; } - // if target is a compile-time constant and it is free from - // quotes, then the next part could get optimized away through - // inlining. - if((target[pos] == '"') && !escaping) { - // We have reached the end of the raw_json_string but - // the target is not done. - return false; - } else if(target[pos] == '\\') { - escaping = !escaping; - } else { - escaping = false; - } - } - if(r[pos] != '"') { return false; } - return true; + return array_iterator(iter); } - - -simdjson_inline bool raw_json_string::unsafe_is_equal(const char * target) const noexcept { - // Assumptions: 'target' does not contain unescaped quote characters, is null terminated and - // the raw content is quote terminated within a valid JSON string. - const char * r{raw()}; - size_t pos{0}; - for(;target[pos];pos++) { - if(r[pos] != target[pos]) { return false; } - } - if(r[pos] != '"') { return false; } - return true; +simdjson_inline simdjson_result array::end() noexcept { + return array_iterator(iter); } - -simdjson_inline bool raw_json_string::is_equal(const char* target) const noexcept { - // Assumptions: does not contain unescaped quote characters, and - // the raw content is quote terminated within a valid JSON string. - const char * r{raw()}; - size_t pos{0}; - bool escaping{false}; - for(;target[pos];pos++) { - if(r[pos] != target[pos]) { return false; } - // if target is a compile-time constant and it is free from - // quotes, then the next part could get optimized away through - // inlining. - if((target[pos] == '"') && !escaping) { - // We have reached the end of the raw_json_string but - // the target is not done. - return false; - } else if(target[pos] == '\\') { - escaping = !escaping; - } else { - escaping = false; - } - } - if(r[pos] != '"') { return false; } - return true; +simdjson_inline error_code array::consume() noexcept { + auto error = iter.json_iter().skip_child(iter.depth()-1); + if(error) { iter.abandon(); } + return error; } -simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept { - return a.unsafe_is_equal(c); +simdjson_inline simdjson_result array::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter._json_iter->unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); } -simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept { - return a == c; +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline simdjson_result array::count_elements() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the array after counting the number of elements. + iter.reset_array(); + return count; } +SIMDJSON_POP_DISABLE_WARNINGS -simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept { - return !(a == c); +simdjson_inline simdjson_result array::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_array().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; } -simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept { - return !(a == c); +inline simdjson_result array::reset() & noexcept { + return iter.reset_array(); } +inline simdjson_result array::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + // - means "the append position" or "the element after the end of the array" + // We don't support this, because we're returning a real element, not a position. + if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } + + // Read the array index + size_t array_index = 0; + size_t i; + for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { + uint8_t digit = uint8_t(json_pointer[i] - '0'); + // Check for non-digit in array index. If it's there, we're trying to get a field in an object + if (digit > 9) { return INCORRECT_TYPE; } + array_index = array_index*10 + digit; + } -simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape(json_iterator &iter, bool allow_replacement) const noexcept { - return iter.unescape(*this, allow_replacement); -} + // 0 followed by other digits is invalid + if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" -simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape_wobbly(json_iterator &iter) const noexcept { - return iter.unescape_wobbly(*this); + // Empty string is invalid; so is a "/" with no digits before it + if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" + // Get the child + auto child = at(array_index); + // If there is an error, it ends here + if(child.error()) { + return child; + } + + // If there is a /, we're not done yet, call recursively. + if (i < json_pointer.length()) { + child = child.at_pointer(json_pointer.substr(i)); + } + return child; } -simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &out, const raw_json_string &str) noexcept { - bool in_escape = false; - const char *s = str.raw(); - while (true) { - switch (*s) { - case '\\': in_escape = !in_escape; break; - case '"': if (in_escape) { in_escape = false; } else { return out; } break; - default: if (in_escape) { in_escape = false; } - } - out << *s; - s++; +simdjson_inline simdjson_result array::at(size_t index) noexcept { + size_t i = 0; + for (auto value : *this) { + if (i == index) { return value; } + i++; } + return INDEX_OUT_OF_BOUNDS; } } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { -simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string &&value) noexcept - : implementation_simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : implementation_simdjson_result_base(error) {} +simdjson_inline simdjson_result::simdjson_result( + westmere::ondemand::array &&value +) noexcept + : implementation_simdjson_result_base( + std::forward(value) + ) +{ +} +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept + : implementation_simdjson_result_base(error) +{ +} -simdjson_inline simdjson_result simdjson_result::raw() const noexcept { +simdjson_inline simdjson_result simdjson_result::begin() noexcept { if (error()) { return error(); } - return first.raw(); + return first.begin(); } -simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &iter, bool allow_replacement) const noexcept { +simdjson_inline simdjson_result simdjson_result::end() noexcept { if (error()) { return error(); } - return first.unescape(iter, allow_replacement); + return first.end(); } -simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape_wobbly(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &iter) const noexcept { +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { if (error()) { return error(); } - return first.unescape_wobbly(iter); + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::is_empty() & noexcept { + if (error()) { return error(); } + return first.is_empty(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { + if (error()) { return error(); } + return first.raw_json(); } } // namespace simdjson -/* end file include/simdjson/generic/ondemand/raw_json_string-inl.h */ -/* begin file include/simdjson/generic/ondemand/token_iterator-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { -simdjson_inline token_iterator::token_iterator( - const uint8_t *_buf, - token_position position -) noexcept : buf{_buf}, _position{position} -{ -} +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_INL_H +/* end file simdjson/generic/ondemand/array-inl.h for westmere */ +/* including simdjson/generic/ondemand/array_iterator-inl.h for westmere: #include "simdjson/generic/ondemand/array_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/array_iterator-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H -simdjson_inline uint32_t token_iterator::current_offset() const noexcept { - return *(_position); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ +namespace simdjson { +namespace westmere { +namespace ondemand { -simdjson_inline const uint8_t *token_iterator::return_current_and_advance() noexcept { - return &buf[*(_position++)]; -} +simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} -simdjson_inline const uint8_t *token_iterator::peek(token_position position) const noexcept { - return &buf[*position]; -} -simdjson_inline uint32_t token_iterator::peek_index(token_position position) const noexcept { - return *position; -} -simdjson_inline uint32_t token_iterator::peek_length(token_position position) const noexcept { - return *(position+1) - *position; +simdjson_inline simdjson_result array_iterator::operator*() noexcept { + if (iter.error()) { iter.abandon(); return iter.error(); } + return value(iter.child()); } - -simdjson_inline const uint8_t *token_iterator::peek(int32_t delta) const noexcept { - return &buf[*(_position+delta)]; +simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept { + return !(*this != other); } -simdjson_inline uint32_t token_iterator::peek_index(int32_t delta) const noexcept { - return *(_position+delta); +simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept { + return iter.is_open(); } -simdjson_inline uint32_t token_iterator::peek_length(int32_t delta) const noexcept { - return *(_position+delta+1) - *(_position+delta); +simdjson_inline array_iterator &array_iterator::operator++() noexcept { + error_code error; + // PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here. + // However, it does not seem to make a perf difference, so we add it out of an abundance of caution. + if (( error = iter.error() )) { return *this; } + if (( error = iter.skip_child() )) { return *this; } + if (( error = iter.has_next_element().error() )) { return *this; } + return *this; } -simdjson_inline token_position token_iterator::position() const noexcept { - return _position; -} -simdjson_inline void token_iterator::set_position(token_position target_position) noexcept { - _position = target_position; -} +} // namespace ondemand +} // namespace westmere +} // namespace simdjson -simdjson_inline bool token_iterator::operator==(const token_iterator &other) const noexcept { - return _position == other._position; +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + westmere::ondemand::array_iterator &&value +) noexcept + : westmere::implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); } -simdjson_inline bool token_iterator::operator!=(const token_iterator &other) const noexcept { - return _position != other._position; +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : westmere::implementation_simdjson_result_base({}, error) +{ } -simdjson_inline bool token_iterator::operator>(const token_iterator &other) const noexcept { - return _position > other._position; + +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { + if (error()) { return error(); } + return *first; } -simdjson_inline bool token_iterator::operator>=(const token_iterator &other) const noexcept { - return _position >= other._position; +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; } -simdjson_inline bool token_iterator::operator<(const token_iterator &other) const noexcept { - return _position < other._position; +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; } -simdjson_inline bool token_iterator::operator<=(const token_iterator &other) const noexcept { - return _position <= other._position; +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++(first); + return *this; } -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION } // namespace simdjson -namespace simdjson { - -simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::token_iterator &&value) noexcept - : implementation_simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : implementation_simdjson_result_base(error) {} +#endif // SIMDJSON_GENERIC_ONDEMAND_ARRAY_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/array_iterator-inl.h for westmere */ +/* including simdjson/generic/ondemand/document-inl.h for westmere: #include "simdjson/generic/ondemand/document-inl.h" */ +/* begin file simdjson/generic/ondemand/document-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/token_iterator-inl.h */ -/* begin file include/simdjson/generic/ondemand/json_iterator-inl.h */ namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -simdjson_inline json_iterator::json_iterator(json_iterator &&other) noexcept - : token(std::forward(other.token)), - parser{other.parser}, - _string_buf_loc{other._string_buf_loc}, - error{other.error}, - _depth{other._depth}, - _root{other._root}, - _streaming{other._streaming} +simdjson_inline document::document(ondemand::json_iterator &&_iter) noexcept + : iter{std::forward(_iter)} { - other.parser = nullptr; + logger::log_start_value(iter, "document"); } -simdjson_inline json_iterator &json_iterator::operator=(json_iterator &&other) noexcept { - token = other.token; - parser = other.parser; - _string_buf_loc = other._string_buf_loc; - error = other.error; - _depth = other._depth; - _root = other._root; - _streaming = other._streaming; - other.parser = nullptr; - return *this; + +simdjson_inline document document::start(json_iterator &&iter) noexcept { + return document(std::forward(iter)); } -simdjson_inline json_iterator::json_iterator(const uint8_t *buf, ondemand::parser *_parser) noexcept - : token(buf, &_parser->implementation->structural_indexes[0]), - parser{_parser}, - _string_buf_loc{parser->string_buf.get()}, - _depth{1}, - _root{parser->implementation->structural_indexes.get()}, - _streaming{false} +inline void document::rewind() noexcept { + iter.rewind(); +} -{ - logger::log_headers(); -#if SIMDJSON_CHECK_EOF - assert_more_tokens(); -#endif +inline std::string document::to_debug_string() noexcept { + return iter.to_string(); } -inline void json_iterator::rewind() noexcept { - token.set_position( root_position() ); - logger::log_headers(); // We start again - _string_buf_loc = parser->string_buf.get(); - _depth = 1; +inline simdjson_result document::current_location() const noexcept { + return iter.current_location(); } -inline bool json_iterator::balanced() const noexcept { - token_iterator ti(token); - int32_t count{0}; - ti.set_position( root_position() ); - while(ti.peek() <= peek_last()) { - switch (*ti.return_current_and_advance()) - { - case '[': case '{': - count++; - break; - case ']': case '}': - count--; - break; - default: - break; - } - } - return count == 0; +inline int32_t document::current_depth() const noexcept { + return iter.depth(); } +inline bool document::at_end() const noexcept { + return iter.at_end(); +} -// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller -// relating depth and parent_depth, which is a desired effect. The warning does not show up if the -// skip_child() function is not marked inline). -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING -simdjson_warn_unused simdjson_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept { - if (depth() <= parent_depth) { return SUCCESS; } - switch (*return_current_and_advance()) { - // TODO consider whether matching braces is a requirement: if non-matching braces indicates - // *missing* braces, then future lookups are not in the object/arrays they think they are, - // violating the rule "validate enough structure that the user can be confident they are - // looking at the right values." - // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth - // For the first open array/object in a value, we've already incremented depth, so keep it the same - // We never stop at colon, but if we did, it wouldn't affect depth - case '[': case '{': case ':': - logger::log_start_value(*this, "skip"); - break; - // If there is a comma, we have just finished a value in an array/object, and need to get back in - case ',': - logger::log_value(*this, "skip"); - break; - // ] or } means we just finished a value and need to jump out of the array/object - case ']': case '}': - logger::log_end_value(*this, "skip"); - _depth--; - if (depth() <= parent_depth) { return SUCCESS; } -#if SIMDJSON_CHECK_EOF - // If there are no more tokens, the parent is incomplete. - if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); } -#endif // SIMDJSON_CHECK_EOF - break; - case '"': - if(*peek() == ':') { - // We are at a key!!! - // This might happen if you just started an object and you skip it immediately. - // Performance note: it would be nice to get rid of this check as it is somewhat - // expensive. - // https://github.com/simdjson/simdjson/issues/1742 - logger::log_value(*this, "key"); - return_current_and_advance(); // eat up the ':' - break; // important!!! - } - simdjson_fallthrough; - // Anything else must be a scalar value - default: - // For the first scalar, we will have incremented depth already, so we decrement it here. - logger::log_value(*this, "skip"); - _depth--; - if (depth() <= parent_depth) { return SUCCESS; } - break; +inline bool document::is_alive() noexcept { + return iter.is_alive(); +} +simdjson_inline value_iterator document::resume_value_iterator() noexcept { + return value_iterator(&iter, 1, iter.root_position()); +} +simdjson_inline value_iterator document::get_root_value_iterator() noexcept { + return resume_value_iterator(); +} +simdjson_inline simdjson_result document::start_or_resume_object() noexcept { + if (iter.at_root()) { + return get_object(); + } else { + return object::resume(resume_value_iterator()); } - - // Now that we've considered the first value, we only increment/decrement for arrays/objects - while (position() < end_position()) { - switch (*return_current_and_advance()) { - case '[': case '{': - logger::log_start_value(*this, "skip"); - _depth++; - break; - // TODO consider whether matching braces is a requirement: if non-matching braces indicates - // *missing* braces, then future lookups are not in the object/arrays they think they are, - // violating the rule "validate enough structure that the user can be confident they are - // looking at the right values." - // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth - case ']': case '}': - logger::log_end_value(*this, "skip"); - _depth--; - if (depth() <= parent_depth) { return SUCCESS; } - break; - default: - logger::log_value(*this, "skip", ""); - break; +} +simdjson_inline simdjson_result document::get_value() noexcept { + // Make sure we start any arrays or objects before returning, so that start_root_() + // gets called. + iter.assert_at_document_depth(); + switch (*iter.peek()) { + case '[': { + // The following lines check that the document ends with ]. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_array(); + if(error) { return error; } + return value(get_root_value_iterator()); + } + case '{': { + // The following lines would check that the document ends with }. + auto value_iterator = get_root_value_iterator(); + auto error = value_iterator.check_root_object(); + if(error) { return error; } + return value(get_root_value_iterator()); } + default: + // Unfortunately, scalar documents are a special case in simdjson and they cannot + // be safely converted to value instances. + return SCALAR_DOCUMENT_AS_VALUE; } +} +simdjson_inline simdjson_result document::get_array() & noexcept { + auto value = get_root_value_iterator(); + return array::start_root(value); +} +simdjson_inline simdjson_result document::get_object() & noexcept { + auto value = get_root_value_iterator(); + return object::start_root(value); +} - return report_error(TAPE_ERROR, "not enough close braces"); +/** + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. We want to disallow trailing + * content. + * Thus, in several implementations below, we pass a 'true' parameter value to + * a get_root_value_iterator() method: this indicates that we disallow trailing content. + */ + +simdjson_inline simdjson_result document::get_uint64() noexcept { + return get_root_value_iterator().get_root_uint64(true); +} +simdjson_inline simdjson_result document::get_uint64_in_string() noexcept { + return get_root_value_iterator().get_root_uint64_in_string(true); +} +simdjson_inline simdjson_result document::get_int64() noexcept { + return get_root_value_iterator().get_root_int64(true); +} +simdjson_inline simdjson_result document::get_int64_in_string() noexcept { + return get_root_value_iterator().get_root_int64_in_string(true); +} +simdjson_inline simdjson_result document::get_double() noexcept { + return get_root_value_iterator().get_root_double(true); +} +simdjson_inline simdjson_result document::get_double_in_string() noexcept { + return get_root_value_iterator().get_root_double_in_string(true); +} +simdjson_inline simdjson_result document::get_string(bool allow_replacement) noexcept { + return get_root_value_iterator().get_root_string(true, allow_replacement); +} +simdjson_inline simdjson_result document::get_wobbly_string() noexcept { + return get_root_value_iterator().get_root_wobbly_string(true); +} +simdjson_inline simdjson_result document::get_raw_json_string() noexcept { + return get_root_value_iterator().get_root_raw_json_string(true); +} +simdjson_inline simdjson_result document::get_bool() noexcept { + return get_root_value_iterator().get_root_bool(true); +} +simdjson_inline simdjson_result document::is_null() noexcept { + return get_root_value_iterator().is_root_null(true); } -SIMDJSON_POP_DISABLE_WARNINGS +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_array(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_object(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_double(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_uint64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_int64(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_bool(); } +template<> simdjson_inline simdjson_result document::get() & noexcept { return get_value(); } -simdjson_inline bool json_iterator::at_root() const noexcept { - return position() == root_position(); +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_raw_json_string(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_string(false); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_double(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_uint64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_int64(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_bool(); } +template<> simdjson_inline simdjson_result document::get() && noexcept { return get_value(); } + +template simdjson_inline error_code document::get(T &out) & noexcept { + return get().get(out); +} +template simdjson_inline error_code document::get(T &out) && noexcept { + return std::forward(*this).get().get(out); +} + +#if SIMDJSON_EXCEPTIONS +simdjson_inline document::operator array() & noexcept(false) { return get_array(); } +simdjson_inline document::operator object() & noexcept(false) { return get_object(); } +simdjson_inline document::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document::operator double() noexcept(false) { return get_double(); } +simdjson_inline document::operator std::string_view() noexcept(false) { return get_string(false); } +simdjson_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); } +simdjson_inline document::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document::operator value() noexcept(false) { return get_value(); } + +#endif +simdjson_inline simdjson_result document::count_elements() & noexcept { + auto a = get_array(); + simdjson_result answer = a.count_elements(); + /* If there was an array, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::count_fields() & noexcept { + auto a = get_object(); + simdjson_result answer = a.count_fields(); + /* If there was an object, we are now left pointing at its first element. */ + if(answer.error() == SUCCESS) { rewind(); } + return answer; +} +simdjson_inline simdjson_result document::at(size_t index) & noexcept { + auto a = get_array(); + return a.at(index); +} +simdjson_inline simdjson_result document::begin() & noexcept { + return get_array().begin(); +} +simdjson_inline simdjson_result document::end() & noexcept { + return {}; +} + +simdjson_inline simdjson_result document::find_field(std::string_view key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field(const char *key) & noexcept { + return start_or_resume_object().find_field(key); +} +simdjson_inline simdjson_result document::find_field_unordered(std::string_view key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::find_field_unordered(const char *key) & noexcept { + return start_or_resume_object().find_field_unordered(key); +} +simdjson_inline simdjson_result document::operator[](std::string_view key) & noexcept { + return start_or_resume_object()[key]; +} +simdjson_inline simdjson_result document::operator[](const char *key) & noexcept { + return start_or_resume_object()[key]; } -simdjson_inline bool json_iterator::is_single_token() const noexcept { - return parser->implementation->n_structural_indexes == 1; +simdjson_inline error_code document::consume() noexcept { + auto error = iter.skip_child(0); + if(error) { iter.abandon(); } + return error; } -simdjson_inline bool json_iterator::streaming() const noexcept { - return _streaming; +simdjson_inline simdjson_result document::raw_json() noexcept { + auto _iter = get_root_value_iterator(); + const uint8_t * starting_point{_iter.peek_start()}; + auto error = consume(); + if(error) { return error; } + // After 'consume()', we could be left pointing just beyond the document, but that + // is ok because we are not going to dereference the final pointer position, we just + // use it to compute the length in bytes. + const uint8_t * final_point{iter.unsafe_pointer()}; + return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); } -simdjson_inline token_position json_iterator::root_position() const noexcept { - return _root; +simdjson_inline simdjson_result document::type() noexcept { + return get_root_value_iterator().type(); } -simdjson_inline void json_iterator::assert_at_document_depth() const noexcept { - SIMDJSON_ASSUME( _depth == 1 ); +simdjson_inline simdjson_result document::is_scalar() noexcept { + json_type this_type; + auto error = type().get(this_type); + if(error) { return error; } + return ! ((this_type == json_type::array) || (this_type == json_type::object)); } -simdjson_inline void json_iterator::assert_at_root() const noexcept { - SIMDJSON_ASSUME( _depth == 1 ); -#ifndef SIMDJSON_CLANG_VISUAL_STUDIO - // Under Visual Studio, the next SIMDJSON_ASSUME fails with: the argument - // has side effects that will be discarded. - SIMDJSON_ASSUME( token.position() == _root ); -#endif +simdjson_inline bool document::is_negative() noexcept { + return get_root_value_iterator().is_root_negative(); } -simdjson_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept { - assert_valid_position(token._position + required_tokens - 1); +simdjson_inline simdjson_result document::is_integer() noexcept { + return get_root_value_iterator().is_root_integer(true); } -simdjson_inline void json_iterator::assert_valid_position(token_position position) const noexcept { -#ifndef SIMDJSON_CLANG_VISUAL_STUDIO - SIMDJSON_ASSUME( position >= &parser->implementation->structural_indexes[0] ); - SIMDJSON_ASSUME( position < &parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] ); -#endif +simdjson_inline simdjson_result document::get_number_type() noexcept { + return get_root_value_iterator().get_root_number_type(true); } -simdjson_inline bool json_iterator::at_end() const noexcept { - return position() == end_position(); -} -simdjson_inline token_position json_iterator::end_position() const noexcept { - uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; - return &parser->implementation->structural_indexes[n_structural_indexes]; +simdjson_inline simdjson_result document::get_number() noexcept { + return get_root_value_iterator().get_root_number(true); } -inline std::string json_iterator::to_string() const noexcept { - if( !is_alive() ) { return "dead json_iterator instance"; } - const char * current_structural = reinterpret_cast(token.peek()); - return std::string("json_iterator [ depth : ") + std::to_string(_depth) - + std::string(", structural : '") + std::string(current_structural,1) - + std::string("', offset : ") + std::to_string(token.current_offset()) - + std::string("', error : ") + error_message(error) - + std::string(" ]"); + +simdjson_inline simdjson_result document::raw_json_token() noexcept { + auto _iter = get_root_value_iterator(); + return std::string_view(reinterpret_cast(_iter.peek_start()), _iter.peek_start_length()); } -inline simdjson_result json_iterator::current_location() const noexcept { - if (!is_alive()) { // Unrecoverable error - if (!at_root()) { - return reinterpret_cast(token.peek(-1)); - } else { - return reinterpret_cast(token.peek()); - } +simdjson_inline simdjson_result document::at_pointer(std::string_view json_pointer) noexcept { + rewind(); // Rewind the document each time at_pointer is called + if (json_pointer.empty()) { + return this->get_value(); } - if (at_end()) { - return OUT_OF_BOUNDS; + json_type t; + SIMDJSON_TRY(type().get(t)); + switch (t) + { + case json_type::array: + return (*this).get_array().at_pointer(json_pointer); + case json_type::object: + return (*this).get_object().at_pointer(json_pointer); + default: + return INVALID_JSON_POINTER; } - return reinterpret_cast(token.peek()); } -simdjson_inline bool json_iterator::is_alive() const noexcept { - return parser; -} +} // namespace ondemand +} // namespace westmere +} // namespace simdjson -simdjson_inline void json_iterator::abandon() noexcept { - parser = nullptr; - _depth = 0; -} +namespace simdjson { -simdjson_inline const uint8_t *json_iterator::return_current_and_advance() noexcept { -#if SIMDJSON_CHECK_EOF - assert_more_tokens(); -#endif // SIMDJSON_CHECK_EOF - return token.return_current_and_advance(); +simdjson_inline simdjson_result::simdjson_result( + westmere::ondemand::document &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ } - -simdjson_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept { - // deliberately done without safety guard: - return token.peek(0); +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base( + error + ) +{ } - -simdjson_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept { -#if SIMDJSON_CHECK_EOF - assert_more_tokens(delta+1); -#endif // SIMDJSON_CHECK_EOF - return token.peek(delta); +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); } - -simdjson_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept { -#if SIMDJSON_CHECK_EOF - assert_more_tokens(delta+1); -#endif // #if SIMDJSON_CHECK_EOF - return token.peek_length(delta); +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); } - -simdjson_inline const uint8_t *json_iterator::peek(token_position position) const noexcept { - // todo: currently we require end-of-string buffering, but the following - // assert_valid_position should be turned on if/when we lift that condition. - // assert_valid_position(position); - // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF - // is ON by default, we have no choice but to disable it for real with a comment. - return token.peek(position); +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); } - -simdjson_inline uint32_t json_iterator::peek_length(token_position position) const noexcept { -#if SIMDJSON_CHECK_EOF - assert_valid_position(position); -#endif // SIMDJSON_CHECK_EOF - return token.peek_length(position); +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); + return SUCCESS; } - -simdjson_inline token_position json_iterator::last_position() const noexcept { - // The following line fails under some compilers... - // SIMDJSON_ASSUME(parser->implementation->n_structural_indexes > 0); - // since it has side-effects. - uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; - SIMDJSON_ASSUME(n_structural_indexes > 0); - return &parser->implementation->structural_indexes[n_structural_indexes - 1]; +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); } -simdjson_inline const uint8_t *json_iterator::peek_last() const noexcept { - return token.peek(last_position()); +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; } - -simdjson_inline void json_iterator::ascend_to(depth_t parent_depth) noexcept { - SIMDJSON_ASSUME(parent_depth >= 0 && parent_depth < INT32_MAX - 1); - SIMDJSON_ASSUME(_depth == parent_depth + 1); - _depth = parent_depth; +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); } - -simdjson_inline void json_iterator::descend_to(depth_t child_depth) noexcept { - SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); - SIMDJSON_ASSUME(_depth == child_depth - 1); - _depth = child_depth; +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); } - -simdjson_inline depth_t json_iterator::depth() const noexcept { - return _depth; +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; } - -simdjson_inline uint8_t *&json_iterator::string_buf_loc() noexcept { - return _string_buf_loc; +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; } - -simdjson_inline error_code json_iterator::report_error(error_code _error, const char *message) noexcept { - SIMDJSON_ASSUME(_error != SUCCESS && _error != UNINITIALIZED && _error != INCORRECT_TYPE && _error != NO_SUCH_FIELD); - logger::log_error(*this, message); - error = _error; - return error; +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); } - -simdjson_inline token_position json_iterator::position() const noexcept { - return token.position(); +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); } - -simdjson_inline simdjson_result json_iterator::unescape(raw_json_string in, bool allow_replacement) noexcept { - return parser->unescape(in, _string_buf_loc, allow_replacement); +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); } - -simdjson_inline simdjson_result json_iterator::unescape_wobbly(raw_json_string in) noexcept { - return parser->unescape_wobbly(in, _string_buf_loc); +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); } - -simdjson_inline void json_iterator::reenter_child(token_position position, depth_t child_depth) noexcept { - SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); - SIMDJSON_ASSUME(_depth == child_depth - 1); -#if SIMDJSON_DEVELOPMENT_CHECKS -#ifndef SIMDJSON_CLANG_VISUAL_STUDIO - SIMDJSON_ASSUME(size_t(child_depth) < parser->max_depth()); - SIMDJSON_ASSUME(position >= parser->start_positions[child_depth]); -#endif -#endif - token.set_position(position); - _depth = child_depth; +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); } - -simdjson_inline error_code json_iterator::consume_character(char c) noexcept { - if (*peek() == c) { - return_current_and_advance(); - return SUCCESS; - } - return TAPE_ERROR; +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); } - -#if SIMDJSON_DEVELOPMENT_CHECKS - -simdjson_inline token_position json_iterator::start_position(depth_t depth) const noexcept { - SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); - return size_t(depth) < parser->max_depth() ? parser->start_positions[depth] : 0; +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); } - -simdjson_inline void json_iterator::set_start_position(depth_t depth, token_position position) noexcept { - SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); - if(size_t(depth) < parser->max_depth()) { parser->start_positions[depth] = position; } +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); } - -#endif - - -simdjson_inline error_code json_iterator::optional_error(error_code _error, const char *message) noexcept { - SIMDJSON_ASSUME(_error == INCORRECT_TYPE || _error == NO_SUCH_FIELD); - logger::log_error(*this, message); - return _error; +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); } - - -simdjson_warn_unused simdjson_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept { - // This function is not expected to be called in performance-sensitive settings. - // Let us guard against silly cases: - if((N < max_len) || (N == 0)) { return false; } - // Copy to the buffer. - std::memcpy(tmpbuf, json, max_len); - if(N > max_len) { // We pad whatever remains with ' '. - std::memset(tmpbuf + max_len, ' ', N - max_len); - } - return true; +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); } - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_iterator &&value) noexcept - : implementation_simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : implementation_simdjson_result_base(error) {} - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/json_iterator-inl.h */ -/* begin file include/simdjson/generic/ondemand/value_iterator-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -simdjson_inline value_iterator::value_iterator( - json_iterator *json_iter, - depth_t depth, - token_position start_position -) noexcept : _json_iter{json_iter}, _depth{depth}, _start_position{start_position} -{ +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); } - -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_object() noexcept { - SIMDJSON_TRY( start_container('{', "Not an object", "object") ); - return started_object(); +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); } - -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_object() noexcept { - SIMDJSON_TRY( start_container('{', "Not an object", "object") ); - return started_root_object(); +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_object() noexcept { - assert_at_container_start(); -#if SIMDJSON_DEVELOPMENT_CHECKS - _json_iter->set_start_position(_depth, start_position()); -#endif - if (*_json_iter->peek() == '}') { - logger::log_value(*_json_iter, "empty object"); - _json_iter->return_current_and_advance(); - end_container(); - return false; - } - return true; +template +simdjson_inline simdjson_result simdjson_result::get() & noexcept { + if (error()) { return error(); } + return first.get(); +} +template +simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first).get(); +} +template +simdjson_inline error_code simdjson_result::get(T &out) & noexcept { + if (error()) { return error(); } + return first.get(out); +} +template +simdjson_inline error_code simdjson_result::get(T &out) && noexcept { + if (error()) { return error(); } + return std::forward(first).get(out); } -simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_object() noexcept { - // When in streaming mode, we cannot expect peek_last() to be the last structural element of the - // current document. It only works in the normal mode where we have indexed a single document. - // Note that adding a check for 'streaming' is not expensive since we only have at most - // one root element. - if ( ! _json_iter->streaming() ) { - // The following lines do not fully protect against garbage content within the - // object: e.g., `{"a":2} foo }`. Users concerned with garbage content should - // call `at_end()` on the document instance at the end of the processing to - // ensure that the processing has finished at the end. - // - if (*_json_iter->peek_last() != '}') { - _json_iter->abandon(); - return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing } at end"); - } - // If the last character is } *and* the first gibberish character is also '}' - // then on-demand could accidentally go over. So we need additional checks. - // https://github.com/simdjson/simdjson/issues/1834 - // Checking that the document is balanced requires a full scan which is potentially - // expensive, but it only happens in edge cases where the first padding character is - // a closing bracket. - if ((*_json_iter->peek(_json_iter->end_position()) == '}') && (!_json_iter->balanced())) { - _json_iter->abandon(); - // The exact error would require more work. It will typically be an unclosed object. - return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); - } - } +template<> simdjson_inline simdjson_result simdjson_result::get() & noexcept = delete; +template<> simdjson_inline simdjson_result simdjson_result::get() && noexcept { + if (error()) { return error(); } + return std::forward(first); +} +template<> simdjson_inline error_code simdjson_result::get(westmere::ondemand::document &out) & noexcept = delete; +template<> simdjson_inline error_code simdjson_result::get(westmere::ondemand::document &out) && noexcept { + if (error()) { return error(); } + out = std::forward(first); return SUCCESS; } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_object() noexcept { - auto error = check_root_object(); - if(error) { return error; } - return started_object(); +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); } -simdjson_warn_unused simdjson_inline error_code value_iterator::end_container() noexcept { -#if SIMDJSON_CHECK_EOF - if (depth() > 1 && at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing parent ] or }"); } - // if (depth() <= 1 && !at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing [ or { at start"); } -#endif // SIMDJSON_CHECK_EOF - _json_iter->ascend_to(depth()-1); - return SUCCESS; +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_field() noexcept { - assert_at_next(); - // It's illegal to call this unless there are more tokens: anything that ends in } or ] is - // obligated to verify there are more tokens if they are not the top level. - switch (*_json_iter->return_current_and_advance()) { - case '}': - logger::log_end_value(*_json_iter, "object"); - SIMDJSON_TRY( end_container() ); - return false; - case ',': - return true; - default: - return report_error(TAPE_ERROR, "Missing comma between object fields"); - } +simdjson_inline bool simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_raw(const std::string_view key) noexcept { - error_code error; - bool has_value; - // - // Initially, the object can be in one of a few different places: - // - // 1. The start of the object, at the first field: - // - // ``` - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 2, index 1) - // ``` - if (at_first_field()) { - has_value = true; +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} - // - // 2. When a previous search did not yield a value or the object is empty: - // - // ``` - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 0) - // { } - // ^ (depth 0, index 2) - // ``` - // - } else if (!is_open()) { -#if SIMDJSON_DEVELOPMENT_CHECKS - // If we're past the end of the object, we're being iterated out of order. - // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, - // this object iterator will blithely scan that object for fields. - if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } -#endif - return false; +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} - // 3. When a previous search found a field or an iterator yielded a value: - // - // ``` - // // When a field was not fully consumed (or not even touched at all) - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 2) - // // When a field was fully consumed - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 1) - // // When the last field was fully consumed - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 1) - // ``` - // - } else { - if ((error = skip_child() )) { abandon(); return error; } - if ((error = has_next_field().get(has_value) )) { abandon(); return error; } -#if SIMDJSON_DEVELOPMENT_CHECKS - if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } -#endif - } - while (has_value) { - // Get the key and colon, stopping at the value. - raw_json_string actual_key; - // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes - // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. - // field_key() advances the pointer and checks that '"' is found (corresponding to a key). - // The depth is left unchanged by field_key(). - if ((error = field_key().get(actual_key) )) { abandon(); return error; }; - // field_value() will advance and check that we find a ':' separating the - // key and the value. It will also increment the depth by one. - if ((error = field_value() )) { abandon(); return error; } - // If it matches, stop and return - // We could do it this way if we wanted to allow arbitrary - // key content (including escaped quotes). - //if (actual_key.unsafe_is_equal(max_key_length, key)) { - // Instead we do the following which may trigger buffer overruns if the - // user provides an adversarial key (containing a well placed unescaped quote - // character and being longer than the number of bytes remaining in the JSON - // input). - if (actual_key.unsafe_is_equal(key)) { - logger::log_event(*this, "match", key, -2); - // If we return here, then we return while pointing at the ':' that we just checked. - return true; - } +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} + + +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator westmere::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator westmere::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator westmere::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator westmere::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif - // No match: skip the value and see if , or } is next - logger::log_event(*this, "no match", key, -2); - // The call to skip_child is meant to skip over the value corresponding to the key. - // After skip_child(), we are right before the next comma (',') or the final brace ('}'). - SIMDJSON_TRY( skip_child() ); // Skip the value entirely - // The has_next_field() advances the pointer and check that either ',' or '}' is found. - // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, - // then we are in error and we abort. - if ((error = has_next_field().get(has_value) )) { abandon(); return error; } - } - // If the loop ended, we're out of fields to look at. - return false; +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); } -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_unordered_raw(const std::string_view key) noexcept { - /** - * When find_field_unordered_raw is called, we can either be pointing at the - * first key, pointing outside (at the closing brace) or if a key was matched - * we can be either pointing right afterthe ':' right before the value (that we need skip), - * or we may have consumed the value and we might be at a comma or at the - * final brace (ready for a call to has_next_field()). - */ - error_code error; - bool has_value; +simdjson_inline bool simdjson_result::at_end() const noexcept { + if (error()) { return error(); } + return first.at_end(); +} - // First, we scan from that point to the end. - // If we don't find a match, we may loop back around, and scan from the beginning to that point. - token_position search_start = _json_iter->position(); - // We want to know whether we need to go back to the beginning. - bool at_first = at_first_field(); - /////////////// - // Initially, the object can be in one of a few different places: - // - // 1. At the first key: - // - // ``` - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 2, index 1) - // ``` - // - if (at_first) { - has_value = true; +simdjson_inline int32_t simdjson_result::current_depth() const noexcept { + if (error()) { return error(); } + return first.current_depth(); +} - // 2. When a previous search did not yield a value or the object is empty: - // - // ``` - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 0) - // { } - // ^ (depth 0, index 2) - // ``` - // - } else if (!is_open()) { +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); +} -#if SIMDJSON_DEVELOPMENT_CHECKS - // If we're past the end of the object, we're being iterated out of order. - // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, - // this object iterator will blithely scan that object for fields. - if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } -#endif - SIMDJSON_TRY(reset_object().get(has_value)); - at_first = true; - // 3. When a previous search found a field or an iterator yielded a value: - // - // ``` - // // When a field was not fully consumed (or not even touched at all) - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 2) - // // When a field was fully consumed - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 1) - // // When the last field was fully consumed - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 1) - // ``` - // - } else { - // If someone queried a key but they not did access the value, then we are left pointing - // at the ':' and we need to move forward through the value... If the value was - // processed then skip_child() does not move the iterator (but may adjust the depth). - if ((error = skip_child() )) { abandon(); return error; } - search_start = _json_iter->position(); - if ((error = has_next_field().get(has_value) )) { abandon(); return error; } -#if SIMDJSON_DEVELOPMENT_CHECKS - if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } -#endif - } +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); +} - // After initial processing, we will be in one of two states: - // - // ``` - // // At the beginning of a field - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 1) - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 1) - // // At the end of the object - // { "a": [ 1, 2 ], "b": [ 3, 4 ] } - // ^ (depth 0) - // ``` - // - // Next, we find a match starting from the current position. - while (has_value) { - SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field - // Get the key and colon, stopping at the value. - raw_json_string actual_key; - // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes - // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. - // field_key() advances the pointer and checks that '"' is found (corresponding to a key). - // The depth is left unchanged by field_key(). - if ((error = field_key().get(actual_key) )) { abandon(); return error; }; - // field_value() will advance and check that we find a ':' separating the - // key and the value. It will also increment the depth by one. - if ((error = field_value() )) { abandon(); return error; } +} // namespace simdjson - // If it matches, stop and return - // We could do it this way if we wanted to allow arbitrary - // key content (including escaped quotes). - // if (actual_key.unsafe_is_equal(max_key_length, key)) { - // Instead we do the following which may trigger buffer overruns if the - // user provides an adversarial key (containing a well placed unescaped quote - // character and being longer than the number of bytes remaining in the JSON - // input). - if (actual_key.unsafe_is_equal(key)) { - logger::log_event(*this, "match", key, -2); - // If we return here, then we return while pointing at the ':' that we just checked. - return true; - } - // No match: skip the value and see if , or } is next - logger::log_event(*this, "no match", key, -2); - // The call to skip_child is meant to skip over the value corresponding to the key. - // After skip_child(), we are right before the next comma (',') or the final brace ('}'). - SIMDJSON_TRY( skip_child() ); - // The has_next_field() advances the pointer and check that either ',' or '}' is found. - // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, - // then we are in error and we abort. - if ((error = has_next_field().get(has_value) )) { abandon(); return error; } - } - // Performance note: it maybe wasteful to rewind to the beginning when there might be - // no other query following. Indeed, it would require reskipping the whole object. - // Instead, you can just stay where you are. If there is a new query, there is always time - // to rewind. - if(at_first) { return false; } +namespace simdjson { +namespace westmere { +namespace ondemand { - // If we reach the end without finding a match, search the rest of the fields starting at the - // beginning of the object. - // (We have already run through the object before, so we've already validated its structure. We - // don't check errors in this bit.) - SIMDJSON_TRY(reset_object().get(has_value)); - while (true) { - SIMDJSON_ASSUME(has_value); // we should reach search_start before ever reaching the end of the object - SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field +simdjson_inline document_reference::document_reference() noexcept : doc{nullptr} {} +simdjson_inline document_reference::document_reference(document &d) noexcept : doc(&d) {} +simdjson_inline void document_reference::rewind() noexcept { doc->rewind(); } +simdjson_inline simdjson_result document_reference::get_array() & noexcept { return doc->get_array(); } +simdjson_inline simdjson_result document_reference::get_object() & noexcept { return doc->get_object(); } +/** + * The document_reference instances are used primarily/solely for streams of JSON + * documents. + * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should + * give an error, so we check for trailing content. + * + * However, for streams of JSON documents, we want to be able to start from + * "321" "321" "321" + * and parse it successfully as a stream of JSON documents, calling get_uint64_in_string() + * successfully each time. + * + * To achieve this result, we pass a 'false' to a get_root_value_iterator() method: + * this indicates that we allow trailing content. + */ +simdjson_inline simdjson_result document_reference::get_uint64() noexcept { return doc->get_root_value_iterator().get_root_uint64(false); } +simdjson_inline simdjson_result document_reference::get_uint64_in_string() noexcept { return doc->get_root_value_iterator().get_root_uint64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_int64() noexcept { return doc->get_root_value_iterator().get_root_int64(false); } +simdjson_inline simdjson_result document_reference::get_int64_in_string() noexcept { return doc->get_root_value_iterator().get_root_int64_in_string(false); } +simdjson_inline simdjson_result document_reference::get_double() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_double_in_string() noexcept { return doc->get_root_value_iterator().get_root_double(false); } +simdjson_inline simdjson_result document_reference::get_string(bool allow_replacement) noexcept { return doc->get_root_value_iterator().get_root_string(false, allow_replacement); } +simdjson_inline simdjson_result document_reference::get_wobbly_string() noexcept { return doc->get_root_value_iterator().get_root_wobbly_string(false); } +simdjson_inline simdjson_result document_reference::get_raw_json_string() noexcept { return doc->get_root_value_iterator().get_root_raw_json_string(false); } +simdjson_inline simdjson_result document_reference::get_bool() noexcept { return doc->get_root_value_iterator().get_root_bool(false); } +simdjson_inline simdjson_result document_reference::get_value() noexcept { return doc->get_value(); } +simdjson_inline simdjson_result document_reference::is_null() noexcept { return doc->get_root_value_iterator().is_root_null(false); } - // Get the key and colon, stopping at the value. - raw_json_string actual_key; - // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes - // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. - // field_key() advances the pointer and checks that '"' is found (corresponding to a key). - // The depth is left unchanged by field_key(). - error = field_key().get(actual_key); SIMDJSON_ASSUME(!error); - // field_value() will advance and check that we find a ':' separating the - // key and the value. It will also increment the depth by one. - error = field_value(); SIMDJSON_ASSUME(!error); +#if SIMDJSON_EXCEPTIONS +simdjson_inline document_reference::operator array() & noexcept(false) { return array(*doc); } +simdjson_inline document_reference::operator object() & noexcept(false) { return object(*doc); } +simdjson_inline document_reference::operator uint64_t() noexcept(false) { return get_uint64(); } +simdjson_inline document_reference::operator int64_t() noexcept(false) { return get_int64(); } +simdjson_inline document_reference::operator double() noexcept(false) { return get_double(); } +simdjson_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); } +simdjson_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); } +simdjson_inline document_reference::operator bool() noexcept(false) { return get_bool(); } +simdjson_inline document_reference::operator value() noexcept(false) { return value(*doc); } +#endif +simdjson_inline simdjson_result document_reference::count_elements() & noexcept { return doc->count_elements(); } +simdjson_inline simdjson_result document_reference::count_fields() & noexcept { return doc->count_fields(); } +simdjson_inline simdjson_result document_reference::at(size_t index) & noexcept { return doc->at(index); } +simdjson_inline simdjson_result document_reference::begin() & noexcept { return doc->begin(); } +simdjson_inline simdjson_result document_reference::end() & noexcept { return doc->end(); } +simdjson_inline simdjson_result document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); } +simdjson_inline simdjson_result document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; } +simdjson_inline simdjson_result document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); } +simdjson_inline simdjson_result document_reference::type() noexcept { return doc->type(); } +simdjson_inline simdjson_result document_reference::is_scalar() noexcept { return doc->is_scalar(); } +simdjson_inline simdjson_result document_reference::current_location() noexcept { return doc->current_location(); } +simdjson_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); } +simdjson_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); } +simdjson_inline simdjson_result document_reference::is_integer() noexcept { return doc->get_root_value_iterator().is_root_integer(false); } +simdjson_inline simdjson_result document_reference::get_number_type() noexcept { return doc->get_root_value_iterator().get_root_number_type(false); } +simdjson_inline simdjson_result document_reference::get_number() noexcept { return doc->get_root_value_iterator().get_root_number(false); } +simdjson_inline simdjson_result document_reference::raw_json_token() noexcept { return doc->raw_json_token(); } +simdjson_inline simdjson_result document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); } +simdjson_inline simdjson_result document_reference::raw_json() noexcept { return doc->raw_json();} +simdjson_inline document_reference::operator document&() const noexcept { return *doc; } - // If it matches, stop and return - // We could do it this way if we wanted to allow arbitrary - // key content (including escaped quotes). - // if (actual_key.unsafe_is_equal(max_key_length, key)) { - // Instead we do the following which may trigger buffer overruns if the - // user provides an adversarial key (containing a well placed unescaped quote - // character and being longer than the number of bytes remaining in the JSON - // input). - if (actual_key.unsafe_is_equal(key)) { - logger::log_event(*this, "match", key, -2); - // If we return here, then we return while pointing at the ':' that we just checked. - return true; - } +} // namespace ondemand +} // namespace westmere +} // namespace simdjson - // No match: skip the value and see if , or } is next - logger::log_event(*this, "no match", key, -2); - // The call to skip_child is meant to skip over the value corresponding to the key. - // After skip_child(), we are right before the next comma (',') or the final brace ('}'). - SIMDJSON_TRY( skip_child() ); - // If we reached the end of the key-value pair we started from, then we know - // that the key is not there so we return false. We are either right before - // the next comma or the final brace. - if(_json_iter->position() == search_start) { return false; } - // The has_next_field() advances the pointer and check that either ',' or '}' is found. - // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, - // then we are in error and we abort. - error = has_next_field().get(has_value); SIMDJSON_ASSUME(!error); - // If we make the mistake of exiting here, then we could be left pointing at a key - // in the middle of an object. That's not an allowable state. - } - // If the loop ended, we're out of fields to look at. The program should - // never reach this point. - return false; -} -SIMDJSON_POP_DISABLE_WARNINGS -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::field_key() noexcept { - assert_at_next(); - const uint8_t *key = _json_iter->return_current_and_advance(); - if (*(key++) != '"') { return report_error(TAPE_ERROR, "Object key is not a string"); } - return raw_json_string(key); -} +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(westmere::ondemand::document_reference value, error_code error) + noexcept : implementation_simdjson_result_base(std::forward(value), error) {} -simdjson_warn_unused simdjson_inline error_code value_iterator::field_value() noexcept { - assert_at_next(); - if (*_json_iter->return_current_and_advance() != ':') { return report_error(TAPE_ERROR, "Missing colon in object field"); } - _json_iter->descend_to(depth()+1); +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { + if (error()) { return error(); } + return first.count_elements(); +} +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { + if (error()) { return error(); } + return first.count_fields(); +} +simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { + if (error()) { return error(); } + return first.at(index); +} +simdjson_inline error_code simdjson_result::rewind() noexcept { + if (error()) { return error(); } + first.rewind(); return SUCCESS; } +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { + if (error()) { return error(); } + return first.begin(); +} +simdjson_inline simdjson_result simdjson_result::end() & noexcept { + return {}; +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field_unordered(key); +} +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { + if (error()) { return error(); } + return first[key]; +} +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { + if (error()) { return error(); } + return first.find_field(key); +} +simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { + if (error()) { return error(); } + return first.get_array(); +} +simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { + if (error()) { return error(); } + return first.get_object(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { + if (error()) { return error(); } + return first.get_uint64(); +} +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + if (error()) { return error(); } + return first.get_uint64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + if (error()) { return error(); } + return first.get_int64(); +} +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + if (error()) { return error(); } + return first.get_int64_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + if (error()) { return error(); } + return first.get_double(); +} +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + if (error()) { return error(); } + return first.get_double_in_string(); +} +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.get_string(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { + if (error()) { return error(); } + return first.get_wobbly_string(); +} +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { + if (error()) { return error(); } + return first.get_raw_json_string(); +} +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { + if (error()) { return error(); } + return first.get_bool(); +} +simdjson_inline simdjson_result simdjson_result::get_value() noexcept { + if (error()) { return error(); } + return first.get_value(); +} +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { + if (error()) { return error(); } + return first.is_null(); +} +simdjson_inline simdjson_result simdjson_result::type() noexcept { + if (error()) { return error(); } + return first.type(); +} +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { + if (error()) { return error(); } + return first.is_scalar(); +} +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { + if (error()) { return error(); } + return first.is_negative(); +} +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { + if (error()) { return error(); } + return first.is_integer(); +} +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { + if (error()) { return error(); } + return first.get_number_type(); +} +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { + if (error()) { return error(); } + return first.get_number(); +} +#if SIMDJSON_EXCEPTIONS +simdjson_inline simdjson_result::operator westmere::ondemand::array() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator westmere::ondemand::object() & noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator westmere::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +simdjson_inline simdjson_result::operator westmere::ondemand::value() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; +} +#endif -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_array() noexcept { - SIMDJSON_TRY( start_container('[', "Not an array", "array") ); - return started_array(); +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { + if (error()) { return error(); } + return first.current_location(); } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_array() noexcept { - SIMDJSON_TRY( start_container('[', "Not an array", "array") ); - return started_root_array(); +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { + if (error()) { return error(); } + return first.raw_json_token(); } -inline std::string value_iterator::to_string() const noexcept { - auto answer = std::string("value_iterator [ depth : ") + std::to_string(_depth) + std::string(", "); - if(_json_iter != nullptr) { answer += _json_iter->to_string(); } - answer += std::string(" ]"); - return answer; +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { + if (error()) { return error(); } + return first.at_pointer(json_pointer); } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_array() noexcept { - assert_at_container_start(); - if (*_json_iter->peek() == ']') { - logger::log_value(*_json_iter, "empty array"); - _json_iter->return_current_and_advance(); - SIMDJSON_TRY( end_container() ); - return false; - } - _json_iter->descend_to(depth()+1); -#if SIMDJSON_DEVELOPMENT_CHECKS - _json_iter->set_start_position(_depth, start_position()); -#endif - return true; + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_INL_H +/* end file simdjson/generic/ondemand/document-inl.h for westmere */ +/* including simdjson/generic/ondemand/document_stream-inl.h for westmere: #include "simdjson/generic/ondemand/document_stream-inl.h" */ +/* begin file simdjson/generic/ondemand/document_stream-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#include +#include + +namespace simdjson { +namespace westmere { +namespace ondemand { + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void stage1_worker::finish() { + // After calling "run" someone would call finish() to wait + // for the end of the processing. + // This function will wait until either the thread has done + // the processing or, else, the destructor has been called. + std::unique_lock lock(locking_mutex); + cond_var.wait(lock, [this]{return has_work == false;}); } -simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_array() noexcept { - // When in streaming mode, we cannot expect peek_last() to be the last structural element of the - // current document. It only works in the normal mode where we have indexed a single document. - // Note that adding a check for 'streaming' is not expensive since we only have at most - // one root element. - if ( ! _json_iter->streaming() ) { - // The following lines do not fully protect against garbage content within the - // array: e.g., `[1, 2] foo]`. Users concerned with garbage content should - // also call `at_end()` on the document instance at the end of the processing to - // ensure that the processing has finished at the end. - // - if (*_json_iter->peek_last() != ']') { - _json_iter->abandon(); - return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing ] at end"); - } - // If the last character is ] *and* the first gibberish character is also ']' - // then on-demand could accidentally go over. So we need additional checks. - // https://github.com/simdjson/simdjson/issues/1834 - // Checking that the document is balanced requires a full scan which is potentially - // expensive, but it only happens in edge cases where the first padding character is - // a closing bracket. - if ((*_json_iter->peek(_json_iter->end_position()) == ']') && (!_json_iter->balanced())) { - _json_iter->abandon(); - // The exact error would require more work. It will typically be an unclosed array. - return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); +inline stage1_worker::~stage1_worker() { + // The thread may never outlive the stage1_worker instance + // and will always be stopped/joined before the stage1_worker + // instance is gone. + stop_thread(); +} + +inline void stage1_worker::start_thread() { + std::unique_lock lock(locking_mutex); + if(thread.joinable()) { + return; // This should never happen but we never want to create more than one thread. + } + thread = std::thread([this]{ + while(true) { + std::unique_lock thread_lock(locking_mutex); + // We wait for either "run" or "stop_thread" to be called. + cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); + // If, for some reason, the stop_thread() method was called (i.e., the + // destructor of stage1_worker is called, then we want to immediately destroy + // the thread (and not do any more processing). + if(!can_work) { + break; + } + this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, + this->_next_batch_start); + this->has_work = false; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify "finish" + thread_lock.unlock(); + } } + ); +} + + +inline void stage1_worker::stop_thread() { + std::unique_lock lock(locking_mutex); + // We have to make sure that all locks can be released. + can_work = false; + has_work = false; + cond_var.notify_all(); + lock.unlock(); + if(thread.joinable()) { + thread.join(); } - return SUCCESS; } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_array() noexcept { - auto error = check_root_array(); - if (error) { return error; } - return started_array(); +inline void stage1_worker::run(document_stream * ds, parser * stage1, size_t next_batch_start) { + std::unique_lock lock(locking_mutex); + owner = ds; + _next_batch_start = next_batch_start; + stage1_thread_parser = stage1; + has_work = true; + // The condition variable call should be moved after thread_lock.unlock() for performance + // reasons but thread sanitizers may report it as a data race if we do. + // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock + cond_var.notify_one(); // will notify the thread lock that we have work + lock.unlock(); } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_element() noexcept { - assert_at_next(); +#endif // SIMDJSON_THREADS_ENABLED - logger::log_event(*this, "has_next_element"); - switch (*_json_iter->return_current_and_advance()) { - case ']': - logger::log_end_value(*_json_iter, "array"); - SIMDJSON_TRY( end_container() ); - return false; - case ',': - _json_iter->descend_to(depth()+1); - return true; - default: - return report_error(TAPE_ERROR, "Missing comma between array elements"); +simdjson_inline document_stream::document_stream( + ondemand::parser &_parser, + const uint8_t *_buf, + size_t _len, + size_t _batch_size, + bool _allow_comma_separated +) noexcept + : parser{&_parser}, + buf{_buf}, + len{_len}, + batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, + allow_comma_separated{_allow_comma_separated}, + error{SUCCESS} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change + #endif +{ +#ifdef SIMDJSON_THREADS_ENABLED + if(worker.get() == nullptr) { + error = MEMALLOC; } +#endif } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_bool(const uint8_t *json) const noexcept { - auto not_true = atomparsing::str4ncmp(json, "true"); - auto not_false = atomparsing::str4ncmp(json, "fals") | (json[4] ^ 'e'); - bool error = (not_true && not_false) || jsoncharutils::is_not_structural_or_whitespace(json[not_true ? 5 : 4]); - if (error) { return incorrect_type_error("Not a boolean"); } - return simdjson_result(!not_true); -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_null(const uint8_t *json) const noexcept { - bool is_null_string = !atomparsing::str4ncmp(json, "null") && jsoncharutils::is_structural_or_whitespace(json[4]); - // if we start with 'n', we must be a null - if(!is_null_string && json[0]=='n') { return incorrect_type_error("Not a null but starts with n"); } - return is_null_string; +simdjson_inline document_stream::document_stream() noexcept + : parser{nullptr}, + buf{nullptr}, + len{0}, + batch_size{0}, + allow_comma_separated{false}, + error{UNINITIALIZED} + #ifdef SIMDJSON_THREADS_ENABLED + , use_thread(false) + #endif +{ } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_string(bool allow_replacement) noexcept { - return get_raw_json_string().unescape(json_iter(), allow_replacement); -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_wobbly_string() noexcept { - return get_raw_json_string().unescape_wobbly(json_iter()); -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_raw_json_string() noexcept { - auto json = peek_scalar("string"); - if (*json != '"') { return incorrect_type_error("Not a string"); } - advance_scalar("string"); - return raw_json_string(json+1); -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64() noexcept { - auto result = numberparsing::parse_unsigned(peek_non_root_scalar("uint64")); - if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } - return result; -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64_in_string() noexcept { - auto result = numberparsing::parse_unsigned_in_string(peek_non_root_scalar("uint64")); - if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } - return result; -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64() noexcept { - auto result = numberparsing::parse_integer(peek_non_root_scalar("int64")); - if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } - return result; -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64_in_string() noexcept { - auto result = numberparsing::parse_integer_in_string(peek_non_root_scalar("int64")); - if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } - return result; -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double() noexcept { - auto result = numberparsing::parse_double(peek_non_root_scalar("double")); - if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } - return result; +simdjson_inline document_stream::~document_stream() noexcept +{ + #ifdef SIMDJSON_THREADS_ENABLED + worker.reset(); + #endif } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double_in_string() noexcept { - auto result = numberparsing::parse_double_in_string(peek_non_root_scalar("double")); - if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } - return result; + +inline size_t document_stream::size_in_bytes() const noexcept { + return len; } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_bool() noexcept { - auto result = parse_bool(peek_non_root_scalar("bool")); - if(result.error() == SUCCESS) { advance_non_root_scalar("bool"); } - return result; + +inline size_t document_stream::truncated_bytes() const noexcept { + if(error == CAPACITY) { return len - batch_start; } + return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; } -simdjson_inline simdjson_result value_iterator::is_null() noexcept { - bool is_null_value; - SIMDJSON_TRY(parse_null(peek_non_root_scalar("null")).get(is_null_value)); - if(is_null_value) { advance_non_root_scalar("null"); } - return is_null_value; + +simdjson_inline document_stream::iterator::iterator() noexcept + : stream{nullptr}, finished{true} { } -simdjson_inline bool value_iterator::is_negative() noexcept { - return numberparsing::is_negative(peek_non_root_scalar("numbersign")); + +simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept + : stream{_stream}, finished{is_end} { } -simdjson_inline bool value_iterator::is_root_negative() noexcept { - return numberparsing::is_negative(peek_root_scalar("numbersign")); + +simdjson_inline simdjson_result document_stream::iterator::operator*() noexcept { + //if(stream->error) { return stream->error; } + return simdjson_result(stream->doc, stream->error); } -simdjson_inline simdjson_result value_iterator::is_integer() noexcept { - return numberparsing::is_integer(peek_non_root_scalar("integer")); + +simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { + // If there is an error, then we want the iterator + // to be finished, no matter what. (E.g., we do not + // keep generating documents with errors, or go beyond + // a document with errors.) + // + // Users do not have to call "operator*()" when they use operator++, + // so we need to end the stream in the operator++ function. + // + // Note that setting finished = true is essential otherwise + // we would enter an infinite loop. + if (stream->error) { finished = true; } + // Note that stream->error() is guarded against error conditions + // (it will immediately return if stream->error casts to false). + // In effect, this next function does nothing when (stream->error) + // is true (hence the risk of an infinite loop). + stream->next(); + // If that was the last document, we're finished. + // It is the only type of error we do not want to appear + // in operator*. + if (stream->error == EMPTY) { finished = true; } + // If we had any other kind of error (not EMPTY) then we want + // to pass it along to the operator* and we cannot mark the result + // as "finished" just yet. + return *this; } -simdjson_inline simdjson_result value_iterator::get_number_type() noexcept { - return numberparsing::get_number_type(peek_non_root_scalar("integer")); + +simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { + return finished != other.finished; } -simdjson_inline simdjson_result value_iterator::get_number() noexcept { - number num; - error_code error = numberparsing::parse_number(peek_non_root_scalar("number"), num); - if(error) { return error; } - return num; + +simdjson_inline document_stream::iterator document_stream::begin() noexcept { + start(); + // If there are no documents, we're finished. + return iterator(this, error == EMPTY); } -simdjson_inline simdjson_result value_iterator::is_root_integer(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("is_root_integer"); - uint8_t tmpbuf[20+1]; // <20 digits> is the longest possible unsigned integer - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { - return false; // if there are more than 20 characters, it cannot be represented as an integer. - } - auto answer = numberparsing::is_integer(tmpbuf); - // If the parsing was a success, we must still check that it is - // a single scalar. Note that we parse first because of cases like '[]' where - // getting TRAILING_CONTENT is wrong. - if(check_trailing && (answer.error() == SUCCESS) && (!_json_iter->is_single_token())) { return TRAILING_CONTENT; } - return answer; +simdjson_inline document_stream::iterator document_stream::end() noexcept { + return iterator(this, true); } -simdjson_inline simdjson_result value_iterator::get_root_number_type(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("number"); - // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, - // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest - // number: -0.e-308. - uint8_t tmpbuf[1074+8+1]; - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { - logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); - return NUMBER_ERROR; +inline void document_stream::start() noexcept { + if (error) { return; } + error = parser->allocate(batch_size); + if (error) { return; } + // Always run the first stage 1 parse immediately + batch_start = 0; + error = run_stage1(*parser, batch_start); + while(error == EMPTY) { + // In exceptional cases, we may start with an empty block + batch_start = next_batch_start(); + if (batch_start >= len) { return; } + error = run_stage1(*parser, batch_start); } - auto answer = numberparsing::get_number_type(tmpbuf); - if (check_trailing && (answer.error() == SUCCESS) && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - return answer; -} -simdjson_inline simdjson_result value_iterator::get_root_number(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("number"); - // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, - // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest - // number: -0.e-308. - uint8_t tmpbuf[1074+8+1]; - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { - logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); - return NUMBER_ERROR; + if (error) { return; } + doc_index = batch_start; + doc = document(json_iterator(&buf[batch_start], parser)); + doc.iter._streaming = true; + + #ifdef SIMDJSON_THREADS_ENABLED + if (use_thread && next_batch_start() < len) { + // Kick off the first thread on next batch if needed + error = stage1_thread_parser.allocate(batch_size); + if (error) { return; } + worker->start_thread(); + start_stage1_thread(); + if (error) { return; } } - number num; - error_code error = numberparsing::parse_number(tmpbuf, num); - if(error) { return error; } - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("number"); - return num; -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_string(bool check_trailing, bool allow_replacement) noexcept { - return get_root_raw_json_string(check_trailing).unescape(json_iter(), allow_replacement); -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_wobbly_string(bool check_trailing) noexcept { - return get_root_raw_json_string(check_trailing).unescape_wobbly(json_iter()); -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_raw_json_string(bool check_trailing) noexcept { - auto json = peek_scalar("string"); - if (*json != '"') { return incorrect_type_error("Not a string"); } - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_scalar("string"); - return raw_json_string(json+1); + #endif // SIMDJSON_THREADS_ENABLED } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("uint64"); - uint8_t tmpbuf[20+1]; // <20 digits> is the longest possible unsigned integer - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { - logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); - return NUMBER_ERROR; - } - auto result = numberparsing::parse_unsigned(tmpbuf); - if(result.error() == SUCCESS) { - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("uint64"); + +inline void document_stream::next() noexcept { + // We always enter at once once in an error condition. + if (error) { return; } + next_document(); + if (error) { return; } + auto cur_struct_index = doc.iter._root - parser->implementation->structural_indexes.get(); + doc_index = batch_start + parser->implementation->structural_indexes[cur_struct_index]; + + // Check if at end of structural indexes (i.e. at end of batch) + if(cur_struct_index >= static_cast(parser->implementation->n_structural_indexes)) { + error = EMPTY; + // Load another batch (if available) + while (error == EMPTY) { + batch_start = next_batch_start(); + if (batch_start >= len) { break; } + #ifdef SIMDJSON_THREADS_ENABLED + if(use_thread) { + load_from_stage1_thread(); + } else { + error = run_stage1(*parser, batch_start); + } + #else + error = run_stage1(*parser, batch_start); + #endif + /** + * Whenever we move to another window, we need to update all pointers to make + * it appear as if the input buffer started at the beginning of the window. + * + * Take this input: + * + * {"z":5} {"1":1,"2":2,"4":4} [7, 10, 9] [15, 11, 12, 13] [154, 110, 112, 1311] + * + * Say you process the following window... + * + * '{"z":5} {"1":1,"2":2,"4":4} [7, 10, 9]' + * + * When you do so, the json_iterator has a pointer at the beginning of the memory region + * (pointing at the beginning of '{"z"...'. + * + * When you move to the window that starts at... + * + * '[7, 10, 9] [15, 11, 12, 13] ... + * + * then it is not sufficient to just run stage 1. You also need to re-anchor the + * json_iterator so that it believes we are starting at '[7, 10, 9]...'. + * + * Under the DOM front-end, this gets done automatically because the parser owns + * the pointer the data, and when you call stage1 and then stage2 on the same + * parser, then stage2 will run on the pointer acquired by stage1. + * + * That is, stage1 calls "this->buf = _buf" so the parser remembers the buffer that + * we used. But json_iterator has no callback when stage1 is called on the parser. + * In fact, I think that the parser is unaware of json_iterator. + * + * + * So we need to re-anchor the json_iterator after each call to stage 1 so that + * all of the pointers are in sync. + */ + doc.iter = json_iterator(&buf[batch_start], parser); + doc.iter._streaming = true; + /** + * End of resync. + */ + + if (error) { continue; } // If the error was EMPTY, we may want to load another batch. + doc_index = batch_start; + } } - return result; } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64_in_string(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("uint64"); - uint8_t tmpbuf[20+1]; // <20 digits> is the longest possible unsigned integer - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { - logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); - return NUMBER_ERROR; - } - auto result = numberparsing::parse_unsigned_in_string(tmpbuf); - if(result.error() == SUCCESS) { - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("uint64"); - } - return result; + +inline void document_stream::next_document() noexcept { + // Go to next place where depth=0 (document depth) + error = doc.iter.skip_child(0); + if (error) { return; } + // Always set depth=1 at the start of document + doc.iter._depth = 1; + // consume comma if comma separated is allowed + if (allow_comma_separated) { doc.iter.consume_character(','); } + // Resets the string buffer at the beginning, thus invalidating the strings. + doc.iter._string_buf_loc = parser->string_buf.get(); + doc.iter._root = doc.iter.position(); } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("int64"); - uint8_t tmpbuf[20+1]; // -<19 digits> is the longest possible integer - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { - logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); - return NUMBER_ERROR; - } - auto result = numberparsing::parse_integer(tmpbuf); - if(result.error() == SUCCESS) { - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("int64"); - } - return result; +inline size_t document_stream::next_batch_start() const noexcept { + return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64_in_string(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("int64"); - uint8_t tmpbuf[20+1]; // -<19 digits> is the longest possible integer - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { - logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); - return NUMBER_ERROR; - } - auto result = numberparsing::parse_integer_in_string(tmpbuf); - if(result.error() == SUCCESS) { - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("int64"); +inline error_code document_stream::run_stage1(ondemand::parser &p, size_t _batch_start) noexcept { + // This code only updates the structural index in the parser, it does not update any json_iterator + // instance. + size_t remaining = len - _batch_start; + if (remaining <= batch_size) { + return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); + } else { + return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); } - return result; } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("double"); - // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, - // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest - // number: -0.e-308. - uint8_t tmpbuf[1074+8+1]; - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { - logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); - return NUMBER_ERROR; - } - auto result = numberparsing::parse_double(tmpbuf); - if(result.error() == SUCCESS) { - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("double"); - } - return result; + +simdjson_inline size_t document_stream::iterator::current_index() const noexcept { + return stream->doc_index; } -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double_in_string(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("double"); - // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, - // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest - // number: -0.e-308. - uint8_t tmpbuf[1074+8+1]; - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { - logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); - return NUMBER_ERROR; - } - auto result = numberparsing::parse_double_in_string(tmpbuf); - if(result.error() == SUCCESS) { - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("double"); +simdjson_inline std::string_view document_stream::iterator::source() const noexcept { + auto depth = stream->doc.iter.depth(); + auto cur_struct_index = stream->doc.iter._root - stream->parser->implementation->structural_indexes.get(); + + // If at root, process the first token to determine if scalar value + if (stream->doc.iter.at_root()) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': // Depth=1 already at start of document + break; + case '}': case ']': + depth--; + break; + default: // Scalar value document + // TODO: Remove any trailing whitespaces + // This returns a string spanning from start of value to the beginning of the next document (excluded) + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[++cur_struct_index] - current_index() - 1); + } + cur_struct_index++; } - return result; -} -simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_bool(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("bool"); - uint8_t tmpbuf[5+1]; - if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 5+1)) { return incorrect_type_error("Not a boolean"); } - auto result = parse_bool(tmpbuf); - if(result.error() == SUCCESS) { - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("bool"); + + while (cur_struct_index <= static_cast(stream->parser->implementation->n_structural_indexes)) { + switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { + case '{': case '[': + depth++; + break; + case '}': case ']': + depth--; + break; + } + if (depth == 0) { break; } + cur_struct_index++; } - return result; + + return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);; } -simdjson_inline simdjson_result value_iterator::is_root_null(bool check_trailing) noexcept { - auto max_len = peek_start_length(); - auto json = peek_root_scalar("null"); - bool result = (max_len >= 4 && !atomparsing::str4ncmp(json, "null") && - (max_len == 4 || jsoncharutils::is_structural_or_whitespace(json[4]))); - if(result) { // we have something that looks like a null. - if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } - advance_root_scalar("null"); + +inline error_code document_stream::iterator::error() const noexcept { + return stream->error; +} + +#ifdef SIMDJSON_THREADS_ENABLED + +inline void document_stream::load_from_stage1_thread() noexcept { + worker->finish(); + // Swap to the parser that was loaded up in the thread. Make sure the parser has + // enough memory to swap to, as well. + std::swap(stage1_thread_parser,*parser); + error = stage1_thread_error; + if (error) { return; } + + // If there's anything left, start the stage 1 thread! + if (next_batch_start() < len) { + start_stage1_thread(); } - return result; } -simdjson_warn_unused simdjson_inline error_code value_iterator::skip_child() noexcept { - SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); - SIMDJSON_ASSUME( _json_iter->_depth >= _depth ); +inline void document_stream::start_stage1_thread() noexcept { + // we call the thread on a lambda that will update + // this->stage1_thread_error + // there is only one thread that may write to this value + // TODO this is NOT exception-safe. + this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error + size_t _next_batch_start = this->next_batch_start(); - return _json_iter->skip_child(depth()); + worker->run(this, & this->stage1_thread_parser, _next_batch_start); } -simdjson_inline value_iterator value_iterator::child() const noexcept { - assert_at_child(); - return { _json_iter, depth()+1, _json_iter->token.position() }; +#endif // SIMDJSON_THREADS_ENABLED + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ +} +simdjson_inline simdjson_result::simdjson_result( + westmere::ondemand::document_stream &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ } -// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller -// relating depth and iterator depth, which is a desired effect. It does not happen if is_open is -// marked non-inline. -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING -simdjson_inline bool value_iterator::is_open() const noexcept { - return _json_iter->depth() >= depth(); } -SIMDJSON_POP_DISABLE_WARNINGS -simdjson_inline bool value_iterator::at_end() const noexcept { - return _json_iter->at_end(); +#endif // SIMDJSON_GENERIC_ONDEMAND_DOCUMENT_STREAM_INL_H +/* end file simdjson/generic/ondemand/document_stream-inl.h for westmere */ +/* including simdjson/generic/ondemand/field-inl.h for westmere: #include "simdjson/generic/ondemand/field-inl.h" */ +/* begin file simdjson/generic/ondemand/field-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +// clang 6 doesn't think the default constructor can be noexcept, so we make it explicit +simdjson_inline field::field() noexcept : std::pair() {} + +simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept + : std::pair(key, std::forward(value)) +{ } -simdjson_inline bool value_iterator::at_start() const noexcept { - return _json_iter->token.position() == start_position(); +simdjson_inline simdjson_result field::start(value_iterator &parent_iter) noexcept { + raw_json_string key; + SIMDJSON_TRY( parent_iter.field_key().get(key) ); + SIMDJSON_TRY( parent_iter.field_value() ); + return field::start(parent_iter, key); } -simdjson_inline bool value_iterator::at_first_field() const noexcept { - SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); - return _json_iter->token.position() == start_position() + 1; +simdjson_inline simdjson_result field::start(const value_iterator &parent_iter, raw_json_string key) noexcept { + return field(key, parent_iter.child()); } -simdjson_inline void value_iterator::abandon() noexcept { - _json_iter->abandon(); +simdjson_inline simdjson_warn_unused simdjson_result field::unescaped_key(bool allow_replacement) noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us. + simdjson_result answer = first.unescape(second.iter.json_iter(), allow_replacement); + first.consume(); + return answer; } -simdjson_warn_unused simdjson_inline depth_t value_iterator::depth() const noexcept { - return _depth; +simdjson_inline raw_json_string field::key() const noexcept { + SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us. + return first; } -simdjson_warn_unused simdjson_inline error_code value_iterator::error() const noexcept { - return _json_iter->error; + +simdjson_inline value &field::value() & noexcept { + return second; } -simdjson_warn_unused simdjson_inline uint8_t *&value_iterator::string_buf_loc() noexcept { - return _json_iter->string_buf_loc(); + +simdjson_inline value field::value() && noexcept { + return std::forward(*this).second; } -simdjson_warn_unused simdjson_inline const json_iterator &value_iterator::json_iter() const noexcept { - return *_json_iter; + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + westmere::ondemand::field &&value +) noexcept : + implementation_simdjson_result_base( + std::forward(value) + ) +{ } -simdjson_warn_unused simdjson_inline json_iterator &value_iterator::json_iter() noexcept { - return *_json_iter; +simdjson_inline simdjson_result::simdjson_result( + error_code error +) noexcept : + implementation_simdjson_result_base(error) +{ } -simdjson_inline const uint8_t *value_iterator::peek_start() const noexcept { - return _json_iter->peek(start_position()); +simdjson_inline simdjson_result simdjson_result::key() noexcept { + if (error()) { return error(); } + return first.key(); } -simdjson_inline uint32_t value_iterator::peek_start_length() const noexcept { - return _json_iter->peek_length(start_position()); +simdjson_inline simdjson_result simdjson_result::unescaped_key(bool allow_replacement) noexcept { + if (error()) { return error(); } + return first.unescaped_key(allow_replacement); +} +simdjson_inline simdjson_result simdjson_result::value() noexcept { + if (error()) { return error(); } + return std::move(first.value()); } -simdjson_inline const uint8_t *value_iterator::peek_scalar(const char *type) noexcept { - logger::log_value(*_json_iter, start_position(), depth(), type); - // If we're not at the position anymore, we don't want to advance the cursor. - if (!is_at_start()) { return peek_start(); } +} // namespace simdjson - // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. - assert_at_start(); - return _json_iter->peek(); -} +#endif // SIMDJSON_GENERIC_ONDEMAND_FIELD_INL_H +/* end file simdjson/generic/ondemand/field-inl.h for westmere */ +/* including simdjson/generic/ondemand/json_iterator-inl.h for westmere: #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/json_iterator-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -simdjson_inline void value_iterator::advance_scalar(const char *type) noexcept { - logger::log_value(*_json_iter, start_position(), depth(), type); - // If we're not at the position anymore, we don't want to advance the cursor. - if (!is_at_start()) { return; } +namespace simdjson { +namespace westmere { +namespace ondemand { - // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. - assert_at_start(); - _json_iter->return_current_and_advance(); - _json_iter->ascend_to(depth()-1); +simdjson_inline json_iterator::json_iterator(json_iterator &&other) noexcept + : token(std::forward(other.token)), + parser{other.parser}, + _string_buf_loc{other._string_buf_loc}, + error{other.error}, + _depth{other._depth}, + _root{other._root}, + _streaming{other._streaming} +{ + other.parser = nullptr; +} +simdjson_inline json_iterator &json_iterator::operator=(json_iterator &&other) noexcept { + token = other.token; + parser = other.parser; + _string_buf_loc = other._string_buf_loc; + error = other.error; + _depth = other._depth; + _root = other._root; + _streaming = other._streaming; + other.parser = nullptr; + return *this; } -simdjson_inline error_code value_iterator::start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept { - logger::log_start_value(*_json_iter, start_position(), depth(), type); - // If we're not at the position anymore, we don't want to advance the cursor. - const uint8_t *json; - if (!is_at_start()) { -#if SIMDJSON_DEVELOPMENT_CHECKS - if (!is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +simdjson_inline json_iterator::json_iterator(const uint8_t *buf, ondemand::parser *_parser) noexcept + : token(buf, &_parser->implementation->structural_indexes[0]), + parser{_parser}, + _string_buf_loc{parser->string_buf.get()}, + _depth{1}, + _root{parser->implementation->structural_indexes.get()}, + _streaming{false} + +{ + logger::log_headers(); +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); #endif - json = peek_start(); - if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } - } else { - assert_at_start(); - /** - * We should be prudent. Let us peek. If it is not the right type, we - * return an error. Only once we have determined that we have the right - * type are we allowed to advance! - */ - json = _json_iter->peek(); - if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } - _json_iter->return_current_and_advance(); - } +} +inline void json_iterator::rewind() noexcept { + token.set_position( root_position() ); + logger::log_headers(); // We start again + _string_buf_loc = parser->string_buf.get(); + _depth = 1; +} - return SUCCESS; +inline bool json_iterator::balanced() const noexcept { + token_iterator ti(token); + int32_t count{0}; + ti.set_position( root_position() ); + while(ti.peek() <= peek_last()) { + switch (*ti.return_current_and_advance()) + { + case '[': case '{': + count++; + break; + case ']': case '}': + count--; + break; + default: + break; + } + } + return count == 0; } -simdjson_inline const uint8_t *value_iterator::peek_root_scalar(const char *type) noexcept { - logger::log_value(*_json_iter, start_position(), depth(), type); - if (!is_at_start()) { return peek_start(); } +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and parent_depth, which is a desired effect. The warning does not show up if the +// skip_child() function is not marked inline). +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline error_code json_iterator::skip_child(depth_t parent_depth) noexcept { + if (depth() <= parent_depth) { return SUCCESS; } + switch (*return_current_and_advance()) { + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth - assert_at_root(); - return _json_iter->peek(); -} -simdjson_inline const uint8_t *value_iterator::peek_non_root_scalar(const char *type) noexcept { - logger::log_value(*_json_iter, start_position(), depth(), type); - if (!is_at_start()) { return peek_start(); } + // For the first open array/object in a value, we've already incremented depth, so keep it the same + // We never stop at colon, but if we did, it wouldn't affect depth + case '[': case '{': case ':': + logger::log_start_value(*this, "skip"); + break; + // If there is a comma, we have just finished a value in an array/object, and need to get back in + case ',': + logger::log_value(*this, "skip"); + break; + // ] or } means we just finished a value and need to jump out of the array/object + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } +#if SIMDJSON_CHECK_EOF + // If there are no more tokens, the parent is incomplete. + if (at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "Missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + break; + case '"': + if(*peek() == ':') { + // We are at a key!!! + // This might happen if you just started an object and you skip it immediately. + // Performance note: it would be nice to get rid of this check as it is somewhat + // expensive. + // https://github.com/simdjson/simdjson/issues/1742 + logger::log_value(*this, "key"); + return_current_and_advance(); // eat up the ':' + break; // important!!! + } + simdjson_fallthrough; + // Anything else must be a scalar value + default: + // For the first scalar, we will have incremented depth already, so we decrement it here. + logger::log_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + } - assert_at_non_root_start(); - return _json_iter->peek(); + // Now that we've considered the first value, we only increment/decrement for arrays/objects + while (position() < end_position()) { + switch (*return_current_and_advance()) { + case '[': case '{': + logger::log_start_value(*this, "skip"); + _depth++; + break; + // TODO consider whether matching braces is a requirement: if non-matching braces indicates + // *missing* braces, then future lookups are not in the object/arrays they think they are, + // violating the rule "validate enough structure that the user can be confident they are + // looking at the right values." + // PERF TODO we can eliminate the switch here with a lookup of how much to add to depth + case ']': case '}': + logger::log_end_value(*this, "skip"); + _depth--; + if (depth() <= parent_depth) { return SUCCESS; } + break; + default: + logger::log_value(*this, "skip", ""); + break; + } + } + + return report_error(TAPE_ERROR, "not enough close braces"); } -simdjson_inline void value_iterator::advance_root_scalar(const char *type) noexcept { - logger::log_value(*_json_iter, start_position(), depth(), type); - if (!is_at_start()) { return; } +SIMDJSON_POP_DISABLE_WARNINGS - assert_at_root(); - _json_iter->return_current_and_advance(); - _json_iter->ascend_to(depth()-1); +simdjson_inline bool json_iterator::at_root() const noexcept { + return position() == root_position(); } -simdjson_inline void value_iterator::advance_non_root_scalar(const char *type) noexcept { - logger::log_value(*_json_iter, start_position(), depth(), type); - if (!is_at_start()) { return; } - assert_at_non_root_start(); - _json_iter->return_current_and_advance(); - _json_iter->ascend_to(depth()-1); +simdjson_inline bool json_iterator::is_single_token() const noexcept { + return parser->implementation->n_structural_indexes == 1; } -simdjson_inline error_code value_iterator::incorrect_type_error(const char *message) const noexcept { - logger::log_error(*_json_iter, start_position(), depth(), message); - return INCORRECT_TYPE; +simdjson_inline bool json_iterator::streaming() const noexcept { + return _streaming; } -simdjson_inline bool value_iterator::is_at_start() const noexcept { - return position() == start_position(); +simdjson_inline token_position json_iterator::root_position() const noexcept { + return _root; } -simdjson_inline bool value_iterator::is_at_key() const noexcept { - // Keys are at the same depth as the object. - // Note here that we could be safer and check that we are within an object, - // but we do not. - return _depth == _json_iter->_depth && *_json_iter->peek() == '"'; +simdjson_inline void json_iterator::assert_at_document_depth() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); } -simdjson_inline bool value_iterator::is_at_iterator_start() const noexcept { - // We can legitimately be either at the first value ([1]), or after the array if it's empty ([]). - auto delta = position() - start_position(); - return delta == 1 || delta == 2; +simdjson_inline void json_iterator::assert_at_root() const noexcept { + SIMDJSON_ASSUME( _depth == 1 ); +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + // Under Visual Studio, the next SIMDJSON_ASSUME fails with: the argument + // has side effects that will be discarded. + SIMDJSON_ASSUME( token.position() == _root ); +#endif } -inline void value_iterator::assert_at_start() const noexcept { - SIMDJSON_ASSUME( _json_iter->token._position == _start_position ); - SIMDJSON_ASSUME( _json_iter->_depth == _depth ); - SIMDJSON_ASSUME( _depth > 0 ); +simdjson_inline void json_iterator::assert_more_tokens(uint32_t required_tokens) const noexcept { + assert_valid_position(token._position + required_tokens - 1); } -inline void value_iterator::assert_at_container_start() const noexcept { - SIMDJSON_ASSUME( _json_iter->token._position == _start_position + 1 ); - SIMDJSON_ASSUME( _json_iter->_depth == _depth ); - SIMDJSON_ASSUME( _depth > 0 ); +simdjson_inline void json_iterator::assert_valid_position(token_position position) const noexcept { +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME( position >= &parser->implementation->structural_indexes[0] ); + SIMDJSON_ASSUME( position < &parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] ); +#endif } -inline void value_iterator::assert_at_next() const noexcept { - SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); - SIMDJSON_ASSUME( _json_iter->_depth == _depth ); - SIMDJSON_ASSUME( _depth > 0 ); +simdjson_inline bool json_iterator::at_end() const noexcept { + return position() == end_position(); +} +simdjson_inline token_position json_iterator::end_position() const noexcept { + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + return &parser->implementation->structural_indexes[n_structural_indexes]; } -simdjson_inline void value_iterator::move_at_start() noexcept { - _json_iter->_depth = _depth; - _json_iter->token.set_position(_start_position); +inline std::string json_iterator::to_string() const noexcept { + if( !is_alive() ) { return "dead json_iterator instance"; } + const char * current_structural = reinterpret_cast(token.peek()); + return std::string("json_iterator [ depth : ") + std::to_string(_depth) + + std::string(", structural : '") + std::string(current_structural,1) + + std::string("', offset : ") + std::to_string(token.current_offset()) + + std::string("', error : ") + error_message(error) + + std::string(" ]"); } -simdjson_inline void value_iterator::move_at_container_start() noexcept { - _json_iter->_depth = _depth; - _json_iter->token.set_position(_start_position + 1); +inline simdjson_result json_iterator::current_location() const noexcept { + if (!is_alive()) { // Unrecoverable error + if (!at_root()) { + return reinterpret_cast(token.peek(-1)); + } else { + return reinterpret_cast(token.peek()); + } + } + if (at_end()) { + return OUT_OF_BOUNDS; + } + return reinterpret_cast(token.peek()); } -simdjson_inline simdjson_result value_iterator::reset_array() noexcept { - if(error()) { return error(); } - move_at_container_start(); - return started_array(); +simdjson_inline bool json_iterator::is_alive() const noexcept { + return parser; } -simdjson_inline simdjson_result value_iterator::reset_object() noexcept { - if(error()) { return error(); } - move_at_container_start(); - return started_object(); +simdjson_inline void json_iterator::abandon() noexcept { + parser = nullptr; + _depth = 0; } -inline void value_iterator::assert_at_child() const noexcept { - SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); - SIMDJSON_ASSUME( _json_iter->_depth == _depth + 1 ); - SIMDJSON_ASSUME( _depth > 0 ); +simdjson_inline const uint8_t *json_iterator::return_current_and_advance() noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(); +#endif // SIMDJSON_CHECK_EOF + return token.return_current_and_advance(); } -inline void value_iterator::assert_at_root() const noexcept { - assert_at_start(); - SIMDJSON_ASSUME( _depth == 1 ); +simdjson_inline const uint8_t *json_iterator::unsafe_pointer() const noexcept { + // deliberately done without safety guard: + return token.peek(); } -inline void value_iterator::assert_at_non_root_start() const noexcept { - assert_at_start(); - SIMDJSON_ASSUME( _depth > 1 ); +simdjson_inline const uint8_t *json_iterator::peek(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // SIMDJSON_CHECK_EOF + return token.peek(delta); } -inline void value_iterator::assert_is_valid() const noexcept { - SIMDJSON_ASSUME( _json_iter != nullptr ); +simdjson_inline uint32_t json_iterator::peek_length(int32_t delta) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_more_tokens(delta+1); +#endif // #if SIMDJSON_CHECK_EOF + return token.peek_length(delta); } -simdjson_inline bool value_iterator::is_valid() const noexcept { - return _json_iter != nullptr; +simdjson_inline const uint8_t *json_iterator::peek(token_position position) const noexcept { + // todo: currently we require end-of-string buffering, but the following + // assert_valid_position should be turned on if/when we lift that condition. + // assert_valid_position(position); + // This is almost surely related to SIMDJSON_CHECK_EOF but given that SIMDJSON_CHECK_EOF + // is ON by default, we have no choice but to disable it for real with a comment. + return token.peek(position); } -simdjson_inline simdjson_result value_iterator::type() const noexcept { - switch (*peek_start()) { - case '{': - return json_type::object; - case '[': - return json_type::array; - case '"': - return json_type::string; - case 'n': - return json_type::null; - case 't': case 'f': - return json_type::boolean; - case '-': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - return json_type::number; - default: - return TAPE_ERROR; - } +simdjson_inline uint32_t json_iterator::peek_length(token_position position) const noexcept { +#if SIMDJSON_CHECK_EOF + assert_valid_position(position); +#endif // SIMDJSON_CHECK_EOF + return token.peek_length(position); +} + +simdjson_inline token_position json_iterator::last_position() const noexcept { + // The following line fails under some compilers... + // SIMDJSON_ASSUME(parser->implementation->n_structural_indexes > 0); + // since it has side-effects. + uint32_t n_structural_indexes{parser->implementation->n_structural_indexes}; + SIMDJSON_ASSUME(n_structural_indexes > 0); + return &parser->implementation->structural_indexes[n_structural_indexes - 1]; +} +simdjson_inline const uint8_t *json_iterator::peek_last() const noexcept { + return token.peek(last_position()); } -simdjson_inline token_position value_iterator::start_position() const noexcept { - return _start_position; +simdjson_inline void json_iterator::ascend_to(depth_t parent_depth) noexcept { + SIMDJSON_ASSUME(parent_depth >= 0 && parent_depth < INT32_MAX - 1); + SIMDJSON_ASSUME(_depth == parent_depth + 1); + _depth = parent_depth; } -simdjson_inline token_position value_iterator::position() const noexcept { - return _json_iter->position(); +simdjson_inline void json_iterator::descend_to(depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); + _depth = child_depth; } -simdjson_inline token_position value_iterator::end_position() const noexcept { - return _json_iter->end_position(); +simdjson_inline depth_t json_iterator::depth() const noexcept { + return _depth; } -simdjson_inline token_position value_iterator::last_position() const noexcept { - return _json_iter->last_position(); +simdjson_inline uint8_t *&json_iterator::string_buf_loc() noexcept { + return _string_buf_loc; } -simdjson_inline error_code value_iterator::report_error(error_code error, const char *message) noexcept { - return _json_iter->report_error(error, message); +simdjson_inline error_code json_iterator::report_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error != SUCCESS && _error != UNINITIALIZED && _error != INCORRECT_TYPE && _error != NO_SUCH_FIELD); + logger::log_error(*this, message); + error = _error; + return error; } -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value_iterator &&value) noexcept - : implementation_simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : implementation_simdjson_result_base(error) {} - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/value_iterator-inl.h */ -/* begin file include/simdjson/generic/ondemand/array_iterator-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -simdjson_inline array_iterator::array_iterator(const value_iterator &_iter) noexcept - : iter{_iter} -{} - -simdjson_inline simdjson_result array_iterator::operator*() noexcept { - if (iter.error()) { iter.abandon(); return iter.error(); } - return value(iter.child()); +simdjson_inline token_position json_iterator::position() const noexcept { + return token.position(); } -simdjson_inline bool array_iterator::operator==(const array_iterator &other) const noexcept { - return !(*this != other); + +simdjson_inline simdjson_result json_iterator::unescape(raw_json_string in, bool allow_replacement) noexcept { + return parser->unescape(in, _string_buf_loc, allow_replacement); } -simdjson_inline bool array_iterator::operator!=(const array_iterator &) const noexcept { - return iter.is_open(); + +simdjson_inline simdjson_result json_iterator::unescape_wobbly(raw_json_string in) noexcept { + return parser->unescape_wobbly(in, _string_buf_loc); } -simdjson_inline array_iterator &array_iterator::operator++() noexcept { - error_code error; - // PERF NOTE this is a safety rail ... users should exit loops as soon as they receive an error, so we'll never get here. - // However, it does not seem to make a perf difference, so we add it out of an abundance of caution. - if (( error = iter.error() )) { return *this; } - if (( error = iter.skip_child() )) { return *this; } - if (( error = iter.has_next_element().error() )) { return *this; } - return *this; + +simdjson_inline void json_iterator::reenter_child(token_position position, depth_t child_depth) noexcept { + SIMDJSON_ASSUME(child_depth >= 1 && child_depth < INT32_MAX); + SIMDJSON_ASSUME(_depth == child_depth - 1); +#if SIMDJSON_DEVELOPMENT_CHECKS +#ifndef SIMDJSON_CLANG_VISUAL_STUDIO + SIMDJSON_ASSUME(size_t(child_depth) < parser->max_depth()); + SIMDJSON_ASSUME(position >= parser->start_positions[child_depth]); +#endif +#endif + token.set_position(position); + _depth = child_depth; } -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson +simdjson_inline error_code json_iterator::consume_character(char c) noexcept { + if (*peek() == c) { + return_current_and_advance(); + return SUCCESS; + } + return TAPE_ERROR; +} -namespace simdjson { +#if SIMDJSON_DEVELOPMENT_CHECKS -simdjson_inline simdjson_result::simdjson_result( - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array_iterator &&value -) noexcept - : SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base(std::forward(value)) -{ - first.iter.assert_is_valid(); -} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : SIMDJSON_BUILTIN_IMPLEMENTATION::implementation_simdjson_result_base({}, error) -{ +simdjson_inline token_position json_iterator::start_position(depth_t depth) const noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + return size_t(depth) < parser->max_depth() ? parser->start_positions[depth] : 0; } -simdjson_inline simdjson_result simdjson_result::operator*() noexcept { - if (error()) { return error(); } - return *first; -} -simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { - if (!first.iter.is_valid()) { return !error(); } - return first == other.first; -} -simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { - if (!first.iter.is_valid()) { return error(); } - return first != other.first; -} -simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { - // Clear the error if there is one, so we don't yield it twice - if (error()) { second = SUCCESS; return *this; } - ++(first); - return *this; +simdjson_inline void json_iterator::set_start_position(depth_t depth, token_position position) noexcept { + SIMDJSON_ASSUME(size_t(depth) < parser->max_depth()); + if(size_t(depth) < parser->max_depth()) { parser->start_positions[depth] = position; } } -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/array_iterator-inl.h */ -/* begin file include/simdjson/generic/ondemand/object_iterator-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -// -// object_iterator -// +#endif -simdjson_inline object_iterator::object_iterator(const value_iterator &_iter) noexcept - : iter{_iter} -{} -simdjson_inline simdjson_result object_iterator::operator*() noexcept { - error_code error = iter.error(); - if (error) { iter.abandon(); return error; } - auto result = field::start(iter); - // TODO this is a safety rail ... users should exit loops as soon as they receive an error. - // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. - if (result.error()) { iter.abandon(); } - return result; -} -simdjson_inline bool object_iterator::operator==(const object_iterator &other) const noexcept { - return !(*this != other); -} -simdjson_inline bool object_iterator::operator!=(const object_iterator &) const noexcept { - return iter.is_open(); +simdjson_inline error_code json_iterator::optional_error(error_code _error, const char *message) noexcept { + SIMDJSON_ASSUME(_error == INCORRECT_TYPE || _error == NO_SUCH_FIELD); + logger::log_error(*this, message); + return _error; } -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING -simdjson_inline object_iterator &object_iterator::operator++() noexcept { - // TODO this is a safety rail ... users should exit loops as soon as they receive an error. - // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. - if (!iter.is_open()) { return *this; } // Iterator will be released if there is an error - - simdjson_unused error_code error; - if ((error = iter.skip_child() )) { return *this; } - simdjson_unused bool has_value; - if ((error = iter.has_next_field().get(has_value) )) { return *this; }; - return *this; +simdjson_warn_unused simdjson_inline bool json_iterator::copy_to_buffer(const uint8_t *json, uint32_t max_len, uint8_t *tmpbuf, size_t N) noexcept { + // This function is not expected to be called in performance-sensitive settings. + // Let us guard against silly cases: + if((N < max_len) || (N == 0)) { return false; } + // Copy to the buffer. + std::memcpy(tmpbuf, json, max_len); + if(N > max_len) { // We pad whatever remains with ' '. + std::memset(tmpbuf + max_len, ' ', N - max_len); + } + return true; } -SIMDJSON_POP_DISABLE_WARNINGS - -// -// ### Live States -// -// While iterating or looking up values, depth >= iter.depth. at_start may vary. Error is -// always SUCCESS: -// -// - Start: This is the state when the object is first found and the iterator is just past the {. -// In this state, at_start == true. -// - Next: After we hand a scalar value to the user, or an array/object which they then fully -// iterate over, the iterator is at the , or } before the next value. In this state, -// depth == iter.depth, at_start == false, and error == SUCCESS. -// - Unfinished Business: When we hand an array/object to the user which they do not fully -// iterate over, we need to finish that iteration by skipping child values until we reach the -// Next state. In this state, depth > iter.depth, at_start == false, and error == SUCCESS. -// -// ## Error States -// -// In error states, we will yield exactly one more value before stopping. iter.depth == depth -// and at_start is always false. We decrement after yielding the error, moving to the Finished -// state. -// -// - Chained Error: When the object iterator is part of an error chain--for example, in -// `for (auto tweet : doc["tweets"])`, where the tweet field may be missing or not be an -// object--we yield that error in the loop, exactly once. In this state, error != SUCCESS and -// iter.depth == depth, and at_start == false. We decrement depth when we yield the error. -// - Missing Comma Error: When the iterator ++ method discovers there is no comma between fields, -// we flag that as an error and treat it exactly the same as a Chained Error. In this state, -// error == TAPE_ERROR, iter.depth == depth, and at_start == false. -// -// Errors that occur while reading a field to give to the user (such as when the key is not a -// string or the field is missing a colon) are yielded immediately. Depth is then decremented, -// moving to the Finished state without transitioning through an Error state at all. -// -// ## Terminal State -// -// The terminal state has iter.depth < depth. at_start is always false. -// -// - Finished: When we have reached a }, we are finished. We signal this by decrementing depth. -// In this state, iter.depth < depth, at_start == false, and error == SUCCESS. -// } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { -simdjson_inline simdjson_result::simdjson_result( - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object_iterator &&value -) noexcept - : implementation_simdjson_result_base(std::forward(value)) -{ - first.iter.assert_is_valid(); -} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : implementation_simdjson_result_base({}, error) -{ -} - -simdjson_inline simdjson_result simdjson_result::operator*() noexcept { - if (error()) { return error(); } - return *first; -} -// If we're iterating and there is an error, return the error once. -simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { - if (!first.iter.is_valid()) { return !error(); } - return first == other.first; -} -// If we're iterating and there is an error, return the error once. -simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { - if (!first.iter.is_valid()) { return error(); } - return first != other.first; -} -// Checks for ']' and ',' -simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { - // Clear the error if there is one, so we don't yield it twice - if (error()) { second = SUCCESS; return *this; } - ++first; - return *this; -} +simdjson_inline simdjson_result::simdjson_result(westmere::ondemand::json_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} } // namespace simdjson -/* end file include/simdjson/generic/ondemand/object_iterator-inl.h */ -/* begin file include/simdjson/generic/ondemand/array-inl.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/json_iterator-inl.h for westmere */ +/* including simdjson/generic/ondemand/json_type-inl.h for westmere: #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* begin file simdjson/generic/ondemand/json_type-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -// -// ### Live States -// -// While iterating or looking up values, depth >= iter->depth. at_start may vary. Error is -// always SUCCESS: -// -// - Start: This is the state when the array is first found and the iterator is just past the `{`. -// In this state, at_start == true. -// - Next: After we hand a scalar value to the user, or an array/object which they then fully -// iterate over, the iterator is at the `,` before the next value (or `]`). In this state, -// depth == iter->depth, at_start == false, and error == SUCCESS. -// - Unfinished Business: When we hand an array/object to the user which they do not fully -// iterate over, we need to finish that iteration by skipping child values until we reach the -// Next state. In this state, depth > iter->depth, at_start == false, and error == SUCCESS. -// -// ## Error States -// -// In error states, we will yield exactly one more value before stopping. iter->depth == depth -// and at_start is always false. We decrement after yielding the error, moving to the Finished -// state. -// -// - Chained Error: When the array iterator is part of an error chain--for example, in -// `for (auto tweet : doc["tweets"])`, where the tweet element may be missing or not be an -// array--we yield that error in the loop, exactly once. In this state, error != SUCCESS and -// iter->depth == depth, and at_start == false. We decrement depth when we yield the error. -// - Missing Comma Error: When the iterator ++ method discovers there is no comma between elements, -// we flag that as an error and treat it exactly the same as a Chained Error. In this state, -// error == TAPE_ERROR, iter->depth == depth, and at_start == false. -// -// ## Terminal State -// -// The terminal state has iter->depth < depth. at_start is always false. -// -// - Finished: When we have reached a `]` or have reported an error, we are finished. We signal this -// by decrementing depth. In this state, iter->depth < depth, at_start == false, and -// error == SUCCESS. -// - -simdjson_inline array::array(const value_iterator &_iter) noexcept - : iter{_iter} -{ +inline std::ostream& operator<<(std::ostream& out, json_type type) noexcept { + switch (type) { + case json_type::array: out << "array"; break; + case json_type::object: out << "object"; break; + case json_type::number: out << "number"; break; + case json_type::string: out << "string"; break; + case json_type::boolean: out << "boolean"; break; + case json_type::null: out << "null"; break; + default: SIMDJSON_UNREACHABLE(); + } + return out; } -simdjson_inline simdjson_result array::start(value_iterator &iter) noexcept { - // We don't need to know if the array is empty to start iteration, but we do want to know if there - // is an error--thus `simdjson_unused`. - simdjson_unused bool has_value; - SIMDJSON_TRY( iter.start_array().get(has_value) ); - return array(iter); +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson_result &type) noexcept(false) { + return out << type.value(); } -simdjson_inline simdjson_result array::start_root(value_iterator &iter) noexcept { - simdjson_unused bool has_value; - SIMDJSON_TRY( iter.start_root_array().get(has_value) ); - return array(iter); +#endif + + + +simdjson_inline number_type number::get_number_type() const noexcept { + return type; } -simdjson_inline simdjson_result array::started(value_iterator &iter) noexcept { - bool has_value; - SIMDJSON_TRY(iter.started_array().get(has_value)); - return array(iter); + +simdjson_inline bool number::is_uint64() const noexcept { + return get_number_type() == number_type::unsigned_integer; } -simdjson_inline simdjson_result array::begin() noexcept { -#if SIMDJSON_DEVELOPMENT_CHECKS - if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } -#endif - return array_iterator(iter); +simdjson_inline uint64_t number::get_uint64() const noexcept { + return payload.unsigned_integer; } -simdjson_inline simdjson_result array::end() noexcept { - return array_iterator(iter); + +simdjson_inline number::operator uint64_t() const noexcept { + return get_uint64(); } -simdjson_inline error_code array::consume() noexcept { - auto error = iter.json_iter().skip_child(iter.depth()-1); - if(error) { iter.abandon(); } - return error; + + +simdjson_inline bool number::is_int64() const noexcept { + return get_number_type() == number_type::signed_integer; } -simdjson_inline simdjson_result array::raw_json() noexcept { - const uint8_t * starting_point{iter.peek_start()}; - auto error = consume(); - if(error) { return error; } - // After 'consume()', we could be left pointing just beyond the document, but that - // is ok because we are not going to dereference the final pointer position, we just - // use it to compute the length in bytes. - const uint8_t * final_point{iter._json_iter->unsafe_pointer()}; - return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); +simdjson_inline int64_t number::get_int64() const noexcept { + return payload.signed_integer; } -SIMDJSON_PUSH_DISABLE_WARNINGS -SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING -simdjson_inline simdjson_result array::count_elements() & noexcept { - size_t count{0}; - // Important: we do not consume any of the values. - for(simdjson_unused auto v : *this) { count++; } - // The above loop will always succeed, but we want to report errors. - if(iter.error()) { return iter.error(); } - // We need to move back at the start because we expect users to iterate through - // the array after counting the number of elements. - iter.reset_array(); - return count; +simdjson_inline number::operator int64_t() const noexcept { + return get_int64(); } -SIMDJSON_POP_DISABLE_WARNINGS -simdjson_inline simdjson_result array::is_empty() & noexcept { - bool is_not_empty; - auto error = iter.reset_array().get(is_not_empty); - if(error) { return error; } - return !is_not_empty; +simdjson_inline bool number::is_double() const noexcept { + return get_number_type() == number_type::floating_point_number; } -inline simdjson_result array::reset() & noexcept { - return iter.reset_array(); +simdjson_inline double number::get_double() const noexcept { + return payload.floating_point_number; } -inline simdjson_result array::at_pointer(std::string_view json_pointer) noexcept { - if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } - json_pointer = json_pointer.substr(1); - // - means "the append position" or "the element after the end of the array" - // We don't support this, because we're returning a real element, not a position. - if (json_pointer == "-") { return INDEX_OUT_OF_BOUNDS; } +simdjson_inline number::operator double() const noexcept { + return get_double(); +} - // Read the array index - size_t array_index = 0; - size_t i; - for (i = 0; i < json_pointer.length() && json_pointer[i] != '/'; i++) { - uint8_t digit = uint8_t(json_pointer[i] - '0'); - // Check for non-digit in array index. If it's there, we're trying to get a field in an object - if (digit > 9) { return INCORRECT_TYPE; } - array_index = array_index*10 + digit; +simdjson_inline double number::as_double() const noexcept { + if(is_double()) { + return payload.floating_point_number; } + if(is_int64()) { + return double(payload.signed_integer); + } + return double(payload.unsigned_integer); +} - // 0 followed by other digits is invalid - if (i > 1 && json_pointer[0] == '0') { return INVALID_JSON_POINTER; } // "JSON pointer array index has other characters after 0" +simdjson_inline void number::append_s64(int64_t value) noexcept { + payload.signed_integer = value; + type = number_type::signed_integer; +} - // Empty string is invalid; so is a "/" with no digits before it - if (i == 0) { return INVALID_JSON_POINTER; } // "Empty string in JSON pointer array index" - // Get the child - auto child = at(array_index); - // If there is an error, it ends here - if(child.error()) { - return child; - } +simdjson_inline void number::append_u64(uint64_t value) noexcept { + payload.unsigned_integer = value; + type = number_type::unsigned_integer; +} - // If there is a /, we're not done yet, call recursively. - if (i < json_pointer.length()) { - child = child.at_pointer(json_pointer.substr(i)); - } - return child; +simdjson_inline void number::append_double(double value) noexcept { + payload.floating_point_number = value; + type = number_type::floating_point_number; } -simdjson_inline simdjson_result array::at(size_t index) noexcept { - size_t i = 0; - for (auto value : *this) { - if (i == index) { return value; } - i++; - } - return INDEX_OUT_OF_BOUNDS; +simdjson_inline void number::skip_double() noexcept { + type = number_type::floating_point_number; } } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { -simdjson_inline simdjson_result::simdjson_result( - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array &&value -) noexcept - : implementation_simdjson_result_base( - std::forward(value) - ) -{ -} -simdjson_inline simdjson_result::simdjson_result( - error_code error -) noexcept - : implementation_simdjson_result_base(error) -{ -} +simdjson_inline simdjson_result::simdjson_result(westmere::ondemand::json_type &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} -simdjson_inline simdjson_result simdjson_result::begin() noexcept { - if (error()) { return error(); } - return first.begin(); -} -simdjson_inline simdjson_result simdjson_result::end() noexcept { - if (error()) { return error(); } - return first.end(); -} -simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { - if (error()) { return error(); } - return first.count_elements(); -} -simdjson_inline simdjson_result simdjson_result::is_empty() & noexcept { - if (error()) { return error(); } - return first.is_empty(); -} -simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { - if (error()) { return error(); } - return first.at(index); -} -simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { - if (error()) { return error(); } - return first.at_pointer(json_pointer); -} -simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { - if (error()) { return error(); } - return first.raw_json(); -} } // namespace simdjson -/* end file include/simdjson/generic/ondemand/array-inl.h */ -/* begin file include/simdjson/generic/ondemand/document-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -simdjson_inline document::document(ondemand::json_iterator &&_iter) noexcept - : iter{std::forward(_iter)} -{ - logger::log_start_value(iter, "document"); -} - -simdjson_inline document document::start(json_iterator &&iter) noexcept { - return document(std::forward(iter)); -} - -inline void document::rewind() noexcept { - iter.rewind(); -} -inline std::string document::to_debug_string() noexcept { - return iter.to_string(); -} +#endif // SIMDJSON_GENERIC_ONDEMAND_JSON_TYPE_INL_H +/* end file simdjson/generic/ondemand/json_type-inl.h for westmere */ +/* including simdjson/generic/ondemand/logger-inl.h for westmere: #include "simdjson/generic/ondemand/logger-inl.h" */ +/* begin file simdjson/generic/ondemand/logger-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H -inline simdjson_result document::current_location() const noexcept { - return iter.current_location(); -} +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/logger.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ -inline int32_t document::current_depth() const noexcept { - return iter.depth(); -} +#include +#include -inline bool document::at_end() const noexcept { - return iter.at_end(); -} +namespace simdjson { +namespace westmere { +namespace ondemand { +namespace logger { +static constexpr const char * DASHES = "----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------"; +static constexpr const int LOG_EVENT_LEN = 20; +static constexpr const int LOG_BUFFER_LEN = 30; +static constexpr const int LOG_SMALL_BUFFER_LEN = 10; +static int log_depth = 0; // Not threadsafe. Log only. -inline bool document::is_alive() noexcept { - return iter.is_alive(); -} -simdjson_inline value_iterator document::resume_value_iterator() noexcept { - return value_iterator(&iter, 1, iter.root_position()); -} -simdjson_inline value_iterator document::get_root_value_iterator() noexcept { - return resume_value_iterator(); -} -simdjson_inline simdjson_result document::start_or_resume_object() noexcept { - if (iter.at_root()) { - return get_object(); +// Helper to turn unprintable or newline characters into spaces +static inline char printable_char(char c) { + if (c >= 0x20) { + return c; } else { - return object::resume(resume_value_iterator()); - } -} -simdjson_inline simdjson_result document::get_value() noexcept { - // Make sure we start any arrays or objects before returning, so that start_root_() - // gets called. - iter.assert_at_document_depth(); - switch (*iter.peek()) { - case '[': { - // The following lines check that the document ends with ]. - auto value_iterator = get_root_value_iterator(); - auto error = value_iterator.check_root_array(); - if(error) { return error; } - return value(get_root_value_iterator()); - } - case '{': { - // The following lines would check that the document ends with }. - auto value_iterator = get_root_value_iterator(); - auto error = value_iterator.check_root_object(); - if(error) { return error; } - return value(get_root_value_iterator()); - } - default: - // Unfortunately, scalar documents are a special case in simdjson and they cannot - // be safely converted to value instances. - return SCALAR_DOCUMENT_AS_VALUE; + return ' '; } } -simdjson_inline simdjson_result document::get_array() & noexcept { - auto value = get_root_value_iterator(); - return array::start_root(value); -} -simdjson_inline simdjson_result document::get_object() & noexcept { - auto value = get_root_value_iterator(); - return object::start_root(value); -} -/** - * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should - * give an error, so we check for trailing content. We want to disallow trailing - * content. - * Thus, in several implementations below, we pass a 'true' parameter value to - * a get_root_value_iterator() method: this indicates that we disallow trailing content. - */ +template +static inline std::string string_format(const std::string& format, const Args&... args) +{ + SIMDJSON_PUSH_DISABLE_ALL_WARNINGS + int size_s = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; + auto size = static_cast(size_s); + if (size <= 0) return std::string(); + std::unique_ptr buf(new char[size]); + std::snprintf(buf.get(), size, format.c_str(), args...); + SIMDJSON_POP_DISABLE_WARNINGS + return std::string(buf.get(), buf.get() + size - 1); +} -simdjson_inline simdjson_result document::get_uint64() noexcept { - return get_root_value_iterator().get_root_uint64(true); +static inline log_level get_log_level_from_env() +{ + SIMDJSON_PUSH_DISABLE_WARNINGS + SIMDJSON_DISABLE_DEPRECATED_WARNING // Disable CRT_SECURE warning on MSVC: manually verified this is safe + char *lvl = getenv("SIMDJSON_LOG_LEVEL"); + SIMDJSON_POP_DISABLE_WARNINGS + if (lvl && simdjson_strcasecmp(lvl, "ERROR") == 0) { return log_level::error; } + return log_level::info; } -simdjson_inline simdjson_result document::get_uint64_in_string() noexcept { - return get_root_value_iterator().get_root_uint64_in_string(true); + +static inline log_level log_threshold() +{ + static log_level threshold = get_log_level_from_env(); + return threshold; } -simdjson_inline simdjson_result document::get_int64() noexcept { - return get_root_value_iterator().get_root_int64(true); + +static inline bool should_log(log_level level) +{ + return level >= log_threshold(); } -simdjson_inline simdjson_result document::get_int64_in_string() noexcept { - return get_root_value_iterator().get_root_int64_in_string(true); + +inline void log_event(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); } -simdjson_inline simdjson_result document::get_double() noexcept { - return get_root_value_iterator().get_root_double(true); + +inline void log_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "", type, detail, log_level::info); } -simdjson_inline simdjson_result document::get_double_in_string() noexcept { - return get_root_value_iterator().get_root_double_in_string(true); +inline void log_value(const json_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_line(iter, "", type, detail, delta, depth_delta, log_level::info); } -simdjson_inline simdjson_result document::get_string(bool allow_replacement) noexcept { - return get_root_value_iterator().get_root_string(true, allow_replacement); + +inline void log_start_value(const json_iterator &iter, token_position index, depth_t depth, const char *type, std::string_view detail) noexcept { + log_line(iter, index, depth, "+", type, detail, log_level::info); + if (LOG_ENABLED) { log_depth++; } } -simdjson_inline simdjson_result document::get_wobbly_string() noexcept { - return get_root_value_iterator().get_root_wobbly_string(true); +inline void log_start_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_line(iter, "+", type, "", delta, depth_delta, log_level::info); + if (LOG_ENABLED) { log_depth++; } } -simdjson_inline simdjson_result document::get_raw_json_string() noexcept { - return get_root_value_iterator().get_root_raw_json_string(true); + +inline void log_end_value(const json_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + if (LOG_ENABLED) { log_depth--; } + log_line(iter, "-", type, "", delta, depth_delta, log_level::info); } -simdjson_inline simdjson_result document::get_bool() noexcept { - return get_root_value_iterator().get_root_bool(true); + +inline void log_error(const json_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_line(iter, "ERROR: ", error, detail, delta, depth_delta, log_level::error); } -simdjson_inline simdjson_result document::is_null() noexcept { - return get_root_value_iterator().is_root_null(true); +inline void log_error(const json_iterator &iter, token_position index, depth_t depth, const char *error, const char *detail) noexcept { + log_line(iter, index, depth, "ERROR: ", error, detail, log_level::error); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_array(); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_object(); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_raw_json_string(); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_string(false); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_double(); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_uint64(); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_int64(); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_bool(); } -template<> simdjson_inline simdjson_result document::get() & noexcept { return get_value(); } - -template<> simdjson_inline simdjson_result document::get() && noexcept { return get_raw_json_string(); } -template<> simdjson_inline simdjson_result document::get() && noexcept { return get_string(false); } -template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_double(); } -template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_uint64(); } -template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_int64(); } -template<> simdjson_inline simdjson_result document::get() && noexcept { return std::forward(*this).get_bool(); } -template<> simdjson_inline simdjson_result document::get() && noexcept { return get_value(); } - -template simdjson_inline error_code document::get(T &out) & noexcept { - return get().get(out); +inline void log_event(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_event(iter.json_iter(), type, detail, delta, depth_delta); } -template simdjson_inline error_code document::get(T &out) && noexcept { - return std::forward(*this).get().get(out); + +inline void log_value(const value_iterator &iter, const char *type, std::string_view detail, int delta, int depth_delta) noexcept { + log_value(iter.json_iter(), type, detail, delta, depth_delta); } -#if SIMDJSON_EXCEPTIONS -simdjson_inline document::operator array() & noexcept(false) { return get_array(); } -simdjson_inline document::operator object() & noexcept(false) { return get_object(); } -simdjson_inline document::operator uint64_t() noexcept(false) { return get_uint64(); } -simdjson_inline document::operator int64_t() noexcept(false) { return get_int64(); } -simdjson_inline document::operator double() noexcept(false) { return get_double(); } -simdjson_inline document::operator std::string_view() noexcept(false) { return get_string(false); } -simdjson_inline document::operator raw_json_string() noexcept(false) { return get_raw_json_string(); } -simdjson_inline document::operator bool() noexcept(false) { return get_bool(); } -simdjson_inline document::operator value() noexcept(false) { return get_value(); } +inline void log_start_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_start_value(iter.json_iter(), type, delta, depth_delta); +} -#endif -simdjson_inline simdjson_result document::count_elements() & noexcept { - auto a = get_array(); - simdjson_result answer = a.count_elements(); - /* If there was an array, we are now left pointing at its first element. */ - if(answer.error() == SUCCESS) { rewind(); } - return answer; +inline void log_end_value(const value_iterator &iter, const char *type, int delta, int depth_delta) noexcept { + log_end_value(iter.json_iter(), type, delta, depth_delta); } -simdjson_inline simdjson_result document::count_fields() & noexcept { - auto a = get_object(); - simdjson_result answer = a.count_fields(); - /* If there was an object, we are now left pointing at its first element. */ - if(answer.error() == SUCCESS) { rewind(); } - return answer; + +inline void log_error(const value_iterator &iter, const char *error, const char *detail, int delta, int depth_delta) noexcept { + log_error(iter.json_iter(), error, detail, delta, depth_delta); } -simdjson_inline simdjson_result document::at(size_t index) & noexcept { - auto a = get_array(); - return a.at(index); + +inline void log_headers() noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(log_level::info))) { + // Technically a static variable is not thread-safe, but if you are using threads and logging... well... + static bool displayed_hint{false}; + log_depth = 0; + printf("\n"); + if (!displayed_hint) { + // We only print this helpful header once. + printf("# Logging provides the depth and position of the iterator user-visible steps:\n"); + printf("# +array says 'this is where we were when we discovered the start array'\n"); + printf( + "# -array says 'this is where we were when we ended the array'\n"); + printf("# skip says 'this is a structural or value I am skipping'\n"); + printf("# +/-skip says 'this is a start/end array or object I am skipping'\n"); + printf("#\n"); + printf("# The indentation of the terms (array, string,...) indicates the depth,\n"); + printf("# in addition to the depth being displayed.\n"); + printf("#\n"); + printf("# Every token in the document has a single depth determined by the tokens before it,\n"); + printf("# and is not affected by what the token actually is.\n"); + printf("#\n"); + printf("# Not all structural elements are presented as tokens in the logs.\n"); + printf("#\n"); + printf("# We never give control to the user within an empty array or an empty object.\n"); + printf("#\n"); + printf("# Inside an array, having a depth greater than the array's depth means that\n"); + printf("# we are pointing inside a value.\n"); + printf("# Having a depth equal to the array means that we are pointing right before a value.\n"); + printf("# Having a depth smaller than the array means that we have moved beyond the array.\n"); + displayed_hint = true; + } + printf("\n"); + printf("| %-*s ", LOG_EVENT_LEN, "Event"); + printf("| %-*s ", LOG_BUFFER_LEN, "Buffer"); + printf("| %-*s ", LOG_SMALL_BUFFER_LEN, "Next"); + // printf("| %-*s ", 5, "Next#"); + printf("| %-*s ", 5, "Depth"); + printf("| Detail "); + printf("|\n"); + + printf("|%.*s", LOG_EVENT_LEN + 2, DASHES); + printf("|%.*s", LOG_BUFFER_LEN + 2, DASHES); + printf("|%.*s", LOG_SMALL_BUFFER_LEN + 2, DASHES); + // printf("|%.*s", 5+2, DASHES); + printf("|%.*s", 5 + 2, DASHES); + printf("|--------"); + printf("|\n"); + fflush(stdout); + } + } } -simdjson_inline simdjson_result document::begin() & noexcept { - return get_array().begin(); + +template +inline void log_line(const json_iterator &iter, const char *title_prefix, const char *title, std::string_view detail, int delta, int depth_delta, log_level level, Args&&... args) noexcept { + log_line(iter, iter.position()+delta, depth_t(iter.depth()+depth_delta), title_prefix, title, detail, level, std::forward(args)...); } -simdjson_inline simdjson_result document::end() & noexcept { - return {}; + +template +inline void log_line(const json_iterator &iter, token_position index, depth_t depth, const char *title_prefix, const char *title, std::string_view detail, log_level level, Args&&... args) noexcept { + if (LOG_ENABLED) { + if (simdjson_unlikely(should_log(level))) { + const int indent = depth * 2; + const auto buf = iter.token.buf; + auto msg = string_format(title, std::forward(args)...); + printf("| %*s%s%-*s ", indent, "", title_prefix, + LOG_EVENT_LEN - indent - int(strlen(title_prefix)), msg.c_str()); + { + // Print the current structural. + printf("| "); + // Before we begin, the index might point right before the document. + // This could be unsafe, see https://github.com/simdjson/simdjson/discussions/1938 + if (index < iter._root) { + printf("%*s", LOG_BUFFER_LEN, ""); + } else { + auto current_structural = &buf[*index]; + for (int i = 0; i < LOG_BUFFER_LEN; i++) { + printf("%c", printable_char(current_structural[i])); + } + } + printf(" "); + } + { + // Print the next structural. + printf("| "); + auto next_structural = &buf[*(index + 1)]; + for (int i = 0; i < LOG_SMALL_BUFFER_LEN; i++) { + printf("%c", printable_char(next_structural[i])); + } + printf(" "); + } + // printf("| %5u ", *(index+1)); + printf("| %5i ", depth); + printf("| %6.*s ", int(detail.size()), detail.data()); + printf("|\n"); + fflush(stdout); + } + } } -simdjson_inline simdjson_result document::find_field(std::string_view key) & noexcept { - return start_or_resume_object().find_field(key); +} // namespace logger +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_LOGGER_INL_H +/* end file simdjson/generic/ondemand/logger-inl.h for westmere */ +/* including simdjson/generic/ondemand/object-inl.h for westmere: #include "simdjson/generic/ondemand/object-inl.h" */ +/* begin file simdjson/generic/ondemand/object-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); } -simdjson_inline simdjson_result document::find_field(const char *key) & noexcept { - return start_or_resume_object().find_field(key); +simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); } -simdjson_inline simdjson_result document::find_field_unordered(std::string_view key) & noexcept { - return start_or_resume_object().find_field_unordered(key); +simdjson_inline simdjson_result object::operator[](const std::string_view key) & noexcept { + return find_field_unordered(key); } -simdjson_inline simdjson_result document::find_field_unordered(const char *key) & noexcept { - return start_or_resume_object().find_field_unordered(key); +simdjson_inline simdjson_result object::operator[](const std::string_view key) && noexcept { + return std::forward(*this).find_field_unordered(key); } -simdjson_inline simdjson_result document::operator[](std::string_view key) & noexcept { - return start_or_resume_object()[key]; +simdjson_inline simdjson_result object::find_field(const std::string_view key) & noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); } -simdjson_inline simdjson_result document::operator[](const char *key) & noexcept { - return start_or_resume_object()[key]; +simdjson_inline simdjson_result object::find_field(const std::string_view key) && noexcept { + bool has_value; + SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); + if (!has_value) { + logger::log_line(iter.json_iter(), "ERROR: ", "Cannot find key %.*s", "", -1, 0, logger::log_level::error, static_cast(key.size()), key.data()); + return NO_SUCH_FIELD; + } + return value(iter.child()); } -simdjson_inline error_code document::consume() noexcept { - auto error = iter.skip_child(0); - if(error) { iter.abandon(); } - return error; +simdjson_inline simdjson_result object::start(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_object().error() ); + return object(iter); +} +simdjson_inline simdjson_result object::start_root(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.start_root_object().error() ); + return object(iter); +} +simdjson_inline error_code object::consume() noexcept { + if(iter.is_at_key()) { + /** + * whenever you are pointing at a key, calling skip_child() is + * unsafe because you will hit a string and you will assume that + * it is string value, and this mistake will lead you to make bad + * depth computation. + */ + /** + * We want to 'consume' the key. We could really + * just do _json_iter->return_current_and_advance(); at this + * point, but, for clarity, we will use the high-level API to + * eat the key. We assume that the compiler optimizes away + * most of the work. + */ + simdjson_unused raw_json_string actual_key; + auto error = iter.field_key().get(actual_key); + if (error) { iter.abandon(); return error; }; + // Let us move to the value while we are at it. + if ((error = iter.field_value())) { iter.abandon(); return error; } + } + auto error_skip = iter.json_iter().skip_child(iter.depth()-1); + if(error_skip) { iter.abandon(); } + return error_skip; } -simdjson_inline simdjson_result document::raw_json() noexcept { - auto _iter = get_root_value_iterator(); - const uint8_t * starting_point{_iter.peek_start()}; +simdjson_inline simdjson_result object::raw_json() noexcept { + const uint8_t * starting_point{iter.peek_start()}; auto error = consume(); if(error) { return error; } - // After 'consume()', we could be left pointing just beyond the document, but that - // is ok because we are not going to dereference the final pointer position, we just - // use it to compute the length in bytes. - const uint8_t * final_point{iter.unsafe_pointer()}; + const uint8_t * final_point{iter._json_iter->peek()}; return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); } -simdjson_inline simdjson_result document::type() noexcept { - return get_root_value_iterator().type(); +simdjson_inline simdjson_result object::started(value_iterator &iter) noexcept { + SIMDJSON_TRY( iter.started_object().error() ); + return object(iter); } -simdjson_inline simdjson_result document::is_scalar() noexcept { - json_type this_type; - auto error = type().get(this_type); - if(error) { return error; } - return ! ((this_type == json_type::array) || (this_type == json_type::object)); +simdjson_inline object object::resume(const value_iterator &iter) noexcept { + return iter; } -simdjson_inline bool document::is_negative() noexcept { - return get_root_value_iterator().is_root_negative(); +simdjson_inline object::object(const value_iterator &_iter) noexcept + : iter{_iter} +{ } -simdjson_inline simdjson_result document::is_integer() noexcept { - return get_root_value_iterator().is_root_integer(true); +simdjson_inline simdjson_result object::begin() noexcept { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + return object_iterator(iter); } - -simdjson_inline simdjson_result document::get_number_type() noexcept { - return get_root_value_iterator().get_root_number_type(true); +simdjson_inline simdjson_result object::end() noexcept { + return object_iterator(iter); } -simdjson_inline simdjson_result document::get_number() noexcept { - return get_root_value_iterator().get_root_number(true); +inline simdjson_result object::at_pointer(std::string_view json_pointer) noexcept { + if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } + json_pointer = json_pointer.substr(1); + size_t slash = json_pointer.find('/'); + std::string_view key = json_pointer.substr(0, slash); + // Grab the child with the given key + simdjson_result child; + + // If there is an escape character in the key, unescape it and then get the child. + size_t escape = key.find('~'); + if (escape != std::string_view::npos) { + // Unescape the key + std::string unescaped(key); + do { + switch (unescaped[escape+1]) { + case '0': + unescaped.replace(escape, 2, "~"); + break; + case '1': + unescaped.replace(escape, 2, "/"); + break; + default: + return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); + } + escape = unescaped.find('~', escape+1); + } while (escape != std::string::npos); + child = find_field(unescaped); // Take note find_field does not unescape keys when matching + } else { + child = find_field(key); + } + if(child.error()) { + return child; // we do not continue if there was an error + } + // If there is a /, we have to recurse and look up more of the path + if (slash != std::string_view::npos) { + child = child.at_pointer(json_pointer.substr(slash)); + } + return child; } +simdjson_inline simdjson_result object::count_fields() & noexcept { + size_t count{0}; + // Important: we do not consume any of the values. + for(simdjson_unused auto v : *this) { count++; } + // The above loop will always succeed, but we want to report errors. + if(iter.error()) { return iter.error(); } + // We need to move back at the start because we expect users to iterate through + // the object after counting the number of elements. + iter.reset_object(); + return count; +} -simdjson_inline simdjson_result document::raw_json_token() noexcept { - auto _iter = get_root_value_iterator(); - return std::string_view(reinterpret_cast(_iter.peek_start()), _iter.peek_start_length()); +simdjson_inline simdjson_result object::is_empty() & noexcept { + bool is_not_empty; + auto error = iter.reset_object().get(is_not_empty); + if(error) { return error; } + return !is_not_empty; } -simdjson_inline simdjson_result document::at_pointer(std::string_view json_pointer) noexcept { - rewind(); // Rewind the document each time at_pointer is called - if (json_pointer.empty()) { - return this->get_value(); - } - json_type t; - SIMDJSON_TRY(type().get(t)); - switch (t) - { - case json_type::array: - return (*this).get_array().at_pointer(json_pointer); - case json_type::object: - return (*this).get_object().at_pointer(json_pointer); - default: - return INVALID_JSON_POINTER; - } +simdjson_inline simdjson_result object::reset() & noexcept { + return iter.reset_object(); } } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { -simdjson_inline simdjson_result::simdjson_result( - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document &&value -) noexcept : - implementation_simdjson_result_base( - std::forward(value) - ) -{ -} -simdjson_inline simdjson_result::simdjson_result( - error_code error -) noexcept : - implementation_simdjson_result_base( - error - ) -{ -} -simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { - if (error()) { return error(); } - return first.count_elements(); -} -simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { - if (error()) { return error(); } - return first.count_fields(); -} -simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { - if (error()) { return error(); } - return first.at(index); -} -simdjson_inline error_code simdjson_result::rewind() noexcept { - if (error()) { return error(); } - first.rewind(); - return SUCCESS; -} -simdjson_inline simdjson_result simdjson_result::begin() & noexcept { +simdjson_inline simdjson_result::simdjson_result(westmere::ondemand::object &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +simdjson_inline simdjson_result simdjson_result::begin() noexcept { if (error()) { return error(); } return first.begin(); } -simdjson_inline simdjson_result simdjson_result::end() & noexcept { - return {}; -} -simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { +simdjson_inline simdjson_result simdjson_result::end() noexcept { if (error()) { return error(); } - return first.find_field_unordered(key); + return first.end(); } -simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { if (error()) { return error(); } return first.find_field_unordered(key); } -simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) && noexcept { if (error()) { return error(); } - return first[key]; + return std::forward(first).find_field_unordered(key); } -simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { if (error()) { return error(); } return first[key]; } -simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) && noexcept { if (error()) { return error(); } - return first.find_field(key); + return std::forward(first)[key]; } -simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { if (error()) { return error(); } return first.find_field(key); } -simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { - if (error()) { return error(); } - return first.get_array(); -} -simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) && noexcept { if (error()) { return error(); } - return first.get_object(); -} -simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { - if (error()) { return error(); } - return first.get_uint64(); + return std::forward(first).find_field(key); } -simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { + +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { if (error()) { return error(); } - return first.get_uint64_in_string(); + return first.at_pointer(json_pointer); } -simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { + +inline simdjson_result simdjson_result::reset() noexcept { if (error()) { return error(); } - return first.get_int64(); + return first.reset(); } -simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { + +inline simdjson_result simdjson_result::is_empty() noexcept { if (error()) { return error(); } - return first.get_int64_in_string(); + return first.is_empty(); } -simdjson_inline simdjson_result simdjson_result::get_double() noexcept { + +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { if (error()) { return error(); } - return first.get_double(); + return first.count_fields(); } -simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { + +simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { if (error()) { return error(); } - return first.get_double_in_string(); + return first.raw_json(); } -simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { - if (error()) { return error(); } - return first.get_string(allow_replacement); +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_INL_H +/* end file simdjson/generic/ondemand/object-inl.h for westmere */ +/* including simdjson/generic/ondemand/object_iterator-inl.h for westmere: #include "simdjson/generic/ondemand/object_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/object_iterator-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/field-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +// +// object_iterator +// + +simdjson_inline object_iterator::object_iterator(const value_iterator &_iter) noexcept + : iter{_iter} +{} + +simdjson_inline simdjson_result object_iterator::operator*() noexcept { + error_code error = iter.error(); + if (error) { iter.abandon(); return error; } + auto result = field::start(iter); + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (result.error()) { iter.abandon(); } + return result; } -simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { - if (error()) { return error(); } - return first.get_wobbly_string(); +simdjson_inline bool object_iterator::operator==(const object_iterator &other) const noexcept { + return !(*this != other); } -simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { - if (error()) { return error(); } - return first.get_raw_json_string(); +simdjson_inline bool object_iterator::operator!=(const object_iterator &) const noexcept { + return iter.is_open(); } -simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { - if (error()) { return error(); } - return first.get_bool(); + +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline object_iterator &object_iterator::operator++() noexcept { + // TODO this is a safety rail ... users should exit loops as soon as they receive an error. + // Nonetheless, let's see if performance is OK with this if statement--the compiler may give it to us for free. + if (!iter.is_open()) { return *this; } // Iterator will be released if there is an error + + simdjson_unused error_code error; + if ((error = iter.skip_child() )) { return *this; } + + simdjson_unused bool has_value; + if ((error = iter.has_next_field().get(has_value) )) { return *this; }; + return *this; } -simdjson_inline simdjson_result simdjson_result::get_value() noexcept { - if (error()) { return error(); } - return first.get_value(); +SIMDJSON_POP_DISABLE_WARNINGS + +// +// ### Live States +// +// While iterating or looking up values, depth >= iter.depth. at_start may vary. Error is +// always SUCCESS: +// +// - Start: This is the state when the object is first found and the iterator is just past the {. +// In this state, at_start == true. +// - Next: After we hand a scalar value to the user, or an array/object which they then fully +// iterate over, the iterator is at the , or } before the next value. In this state, +// depth == iter.depth, at_start == false, and error == SUCCESS. +// - Unfinished Business: When we hand an array/object to the user which they do not fully +// iterate over, we need to finish that iteration by skipping child values until we reach the +// Next state. In this state, depth > iter.depth, at_start == false, and error == SUCCESS. +// +// ## Error States +// +// In error states, we will yield exactly one more value before stopping. iter.depth == depth +// and at_start is always false. We decrement after yielding the error, moving to the Finished +// state. +// +// - Chained Error: When the object iterator is part of an error chain--for example, in +// `for (auto tweet : doc["tweets"])`, where the tweet field may be missing or not be an +// object--we yield that error in the loop, exactly once. In this state, error != SUCCESS and +// iter.depth == depth, and at_start == false. We decrement depth when we yield the error. +// - Missing Comma Error: When the iterator ++ method discovers there is no comma between fields, +// we flag that as an error and treat it exactly the same as a Chained Error. In this state, +// error == TAPE_ERROR, iter.depth == depth, and at_start == false. +// +// Errors that occur while reading a field to give to the user (such as when the key is not a +// string or the field is missing a colon) are yielded immediately. Depth is then decremented, +// moving to the Finished state without transitioning through an Error state at all. +// +// ## Terminal State +// +// The terminal state has iter.depth < depth. at_start is always false. +// +// - Finished: When we have reached a }, we are finished. We signal this by decrementing depth. +// In this state, iter.depth < depth, at_start == false, and error == SUCCESS. +// + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result( + westmere::ondemand::object_iterator &&value +) noexcept + : implementation_simdjson_result_base(std::forward(value)) +{ + first.iter.assert_is_valid(); } -simdjson_inline simdjson_result simdjson_result::is_null() noexcept { - if (error()) { return error(); } - return first.is_null(); +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base({}, error) +{ } -template -simdjson_inline simdjson_result simdjson_result::get() & noexcept { +simdjson_inline simdjson_result simdjson_result::operator*() noexcept { if (error()) { return error(); } - return first.get(); + return *first; } -template -simdjson_inline simdjson_result simdjson_result::get() && noexcept { - if (error()) { return error(); } - return std::forward(first).get(); +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator==(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return !error(); } + return first == other.first; } -template -simdjson_inline error_code simdjson_result::get(T &out) & noexcept { - if (error()) { return error(); } - return first.get(out); +// If we're iterating and there is an error, return the error once. +simdjson_inline bool simdjson_result::operator!=(const simdjson_result &other) const noexcept { + if (!first.iter.is_valid()) { return error(); } + return first != other.first; } -template -simdjson_inline error_code simdjson_result::get(T &out) && noexcept { - if (error()) { return error(); } - return std::forward(first).get(out); +// Checks for ']' and ',' +simdjson_inline simdjson_result &simdjson_result::operator++() noexcept { + // Clear the error if there is one, so we don't yield it twice + if (error()) { second = SUCCESS; return *this; } + ++first; + return *this; } -template<> simdjson_inline simdjson_result simdjson_result::get() & noexcept = delete; -template<> simdjson_inline simdjson_result simdjson_result::get() && noexcept { - if (error()) { return error(); } - return std::forward(first); +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_OBJECT_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/object_iterator-inl.h for westmere */ +/* including simdjson/generic/ondemand/parser-inl.h for westmere: #include "simdjson/generic/ondemand/parser-inl.h" */ +/* begin file simdjson/generic/ondemand/parser-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/padded_string_view.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/internal/dom_parser_implementation.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/dom/base.h" // for MINIMAL_DOCUMENT_CAPACITY */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document_stream.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/parser.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +simdjson_inline parser::parser(size_t max_capacity) noexcept + : _max_capacity{max_capacity} { } -template<> simdjson_inline error_code simdjson_result::get(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document &out) & noexcept = delete; -template<> simdjson_inline error_code simdjson_result::get(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document &out) && noexcept { - if (error()) { return error(); } - out = std::forward(first); + +simdjson_warn_unused simdjson_inline error_code parser::allocate(size_t new_capacity, size_t new_max_depth) noexcept { + if (new_capacity > max_capacity()) { return CAPACITY; } + if (string_buf && new_capacity == capacity() && new_max_depth == max_depth()) { return SUCCESS; } + + // string_capacity copied from document::allocate + _capacity = 0; + size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64); + string_buf.reset(new (std::nothrow) uint8_t[string_capacity]); +#if SIMDJSON_DEVELOPMENT_CHECKS + start_positions.reset(new (std::nothrow) token_position[new_max_depth]); +#endif + if (implementation) { + SIMDJSON_TRY( implementation->set_capacity(new_capacity) ); + SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) ); + } else { + SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) ); + } + _capacity = new_capacity; + _max_depth = new_max_depth; return SUCCESS; } -simdjson_inline simdjson_result simdjson_result::type() noexcept { - if (error()) { return error(); } - return first.type(); +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } + + // Allocate if needed + if (capacity() < json.length() || !string_buf) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return document::start({ reinterpret_cast(json.data()), this }); } -simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { - if (error()) { return error(); } - return first.is_scalar(); +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const char *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); } +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const uint8_t *json, size_t len, size_t allocated) & noexcept { + return iterate(padded_string_view(json, len, allocated)); +} -simdjson_inline bool simdjson_result::is_negative() noexcept { - if (error()) { return error(); } - return first.is_negative(); +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(std::string_view json, size_t allocated) & noexcept { + return iterate(padded_string_view(json, allocated)); } -simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { - if (error()) { return error(); } - return first.is_integer(); +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const std::string &json) & noexcept { + return iterate(padded_string_view(json)); } -simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { - if (error()) { return error(); } - return first.get_number_type(); +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + padded_string_view json = result.value_unsafe(); + return iterate(json); } -simdjson_inline simdjson_result simdjson_result::get_number() noexcept { - if (error()) { return error(); } - return first.get_number(); +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { + // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception + SIMDJSON_TRY( result.error() ); + const padded_string &json = result.value_unsafe(); + return iterate(json); } +simdjson_warn_unused simdjson_inline simdjson_result parser::iterate_raw(padded_string_view json) & noexcept { + if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } -#if SIMDJSON_EXCEPTIONS -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() & noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; + // Allocate if needed + if (capacity() < json.length()) { + SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + } + + // Run stage 1. + SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); + return json_iterator(reinterpret_cast(json.data()), this); } -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() & noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; + +inline simdjson_result parser::iterate_many(const uint8_t *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } + if(allow_comma_separated && batch_size < len) { batch_size = len; } + return document_stream(*this, buf, len, batch_size, allow_comma_separated); } -simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +inline simdjson_result parser::iterate_many(const char *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(reinterpret_cast(buf), len, batch_size, allow_comma_separated); } -simdjson_inline simdjson_result::operator int64_t() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +inline simdjson_result parser::iterate_many(const std::string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); } -simdjson_inline simdjson_result::operator double() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +inline simdjson_result parser::iterate_many(const padded_string &s, size_t batch_size, bool allow_comma_separated) noexcept { + return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); } -simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; + +simdjson_inline size_t parser::capacity() const noexcept { + return _capacity; } -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline size_t parser::max_capacity() const noexcept { + return _max_capacity; } -simdjson_inline simdjson_result::operator bool() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline size_t parser::max_depth() const noexcept { + return _max_depth; } -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; + +simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { + if(max_capacity < dom::MINIMAL_DOCUMENT_CAPACITY) { + _max_capacity = max_capacity; + } else { + _max_capacity = dom::MINIMAL_DOCUMENT_CAPACITY; + } } -#endif +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement) const noexcept { + uint8_t *end = implementation->parse_string(in.buf, dst, allow_replacement); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; +} -simdjson_inline simdjson_result simdjson_result::current_location() noexcept { - if (error()) { return error(); } - return first.current_location(); +simdjson_inline simdjson_warn_unused simdjson_result parser::unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept { + uint8_t *end = implementation->parse_wobbly_string(in.buf, dst); + if (!end) { return STRING_ERROR; } + std::string_view result(reinterpret_cast(dst), end-dst); + dst = end; + return result; } -simdjson_inline bool simdjson_result::at_end() const noexcept { - if (error()) { return error(); } - return first.at_end(); +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(westmere::ondemand::parser &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_PARSER_INL_H +/* end file simdjson/generic/ondemand/parser-inl.h for westmere */ +/* including simdjson/generic/ondemand/raw_json_string-inl.h for westmere: #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* begin file simdjson/generic/ondemand/raw_json_string-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +namespace westmere { +namespace ondemand { + +simdjson_inline raw_json_string::raw_json_string(const uint8_t * _buf) noexcept : buf{_buf} {} + +simdjson_inline const char * raw_json_string::raw() const noexcept { return reinterpret_cast(buf); } + + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(std::string_view target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;pos < target.size() && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;pos < target.size();pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; +} + +simdjson_inline bool raw_json_string::is_free_from_unescaped_quote(const char* target) noexcept { + size_t pos{0}; + // if the content has no escape character, just scan through it quickly! + for(;target[pos] && target[pos] != '\\';pos++) {} + // slow path may begin. + bool escaping{false}; + for(;target[pos];pos++) { + if((target[pos] == '"') && !escaping) { + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + return true; } -simdjson_inline int32_t simdjson_result::current_depth() const noexcept { - if (error()) { return error(); } - return first.current_depth(); +simdjson_inline bool raw_json_string::unsafe_is_equal(size_t length, std::string_view target) const noexcept { + // If we are going to call memcmp, then we must know something about the length of the raw_json_string. + return (length >= target.size()) && (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); } -simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { - if (error()) { return error(); } - return first.raw_json_token(); +simdjson_inline bool raw_json_string::unsafe_is_equal(std::string_view target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + if(target.size() <= SIMDJSON_PADDING) { + return (raw()[target.size()] == '"') && !memcmp(raw(), target.data(), target.size()); + } + const char * r{raw()}; + size_t pos{0}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; } -simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { - if (error()) { return error(); } - return first.at_pointer(json_pointer); +simdjson_inline bool raw_json_string::is_equal(std::string_view target) const noexcept { + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;pos < target.size();pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; } -} // namespace simdjson +simdjson_inline bool raw_json_string::unsafe_is_equal(const char * target) const noexcept { + // Assumptions: 'target' does not contain unescaped quote characters, is null terminated and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + } + if(r[pos] != '"') { return false; } + return true; +} +simdjson_inline bool raw_json_string::is_equal(const char* target) const noexcept { + // Assumptions: does not contain unescaped quote characters, and + // the raw content is quote terminated within a valid JSON string. + const char * r{raw()}; + size_t pos{0}; + bool escaping{false}; + for(;target[pos];pos++) { + if(r[pos] != target[pos]) { return false; } + // if target is a compile-time constant and it is free from + // quotes, then the next part could get optimized away through + // inlining. + if((target[pos] == '"') && !escaping) { + // We have reached the end of the raw_json_string but + // the target is not done. + return false; + } else if(target[pos] == '\\') { + escaping = !escaping; + } else { + escaping = false; + } + } + if(r[pos] != '"') { return false; } + return true; +} -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { +simdjson_unused simdjson_inline bool operator==(const raw_json_string &a, std::string_view c) noexcept { + return a.unsafe_is_equal(c); +} -simdjson_inline document_reference::document_reference() noexcept : doc{nullptr} {} -simdjson_inline document_reference::document_reference(document &d) noexcept : doc(&d) {} -simdjson_inline void document_reference::rewind() noexcept { doc->rewind(); } -simdjson_inline simdjson_result document_reference::get_array() & noexcept { return doc->get_array(); } -simdjson_inline simdjson_result document_reference::get_object() & noexcept { return doc->get_object(); } -/** - * The document_reference instances are used primarily/solely for streams of JSON - * documents. - * We decided that calling 'get_double()' on the JSON document '1.233 blabla' should - * give an error, so we check for trailing content. - * - * However, for streams of JSON documents, we want to be able to start from - * "321" "321" "321" - * and parse it successfully as a stream of JSON documents, calling get_uint64_in_string() - * successfully each time. - * - * To achieve this result, we pass a 'false' to a get_root_value_iterator() method: - * this indicates that we allow trailing content. - */ -simdjson_inline simdjson_result document_reference::get_uint64() noexcept { return doc->get_root_value_iterator().get_root_uint64(false); } -simdjson_inline simdjson_result document_reference::get_uint64_in_string() noexcept { return doc->get_root_value_iterator().get_root_uint64_in_string(false); } -simdjson_inline simdjson_result document_reference::get_int64() noexcept { return doc->get_root_value_iterator().get_root_int64(false); } -simdjson_inline simdjson_result document_reference::get_int64_in_string() noexcept { return doc->get_root_value_iterator().get_root_int64_in_string(false); } -simdjson_inline simdjson_result document_reference::get_double() noexcept { return doc->get_root_value_iterator().get_root_double(false); } -simdjson_inline simdjson_result document_reference::get_double_in_string() noexcept { return doc->get_root_value_iterator().get_root_double(false); } -simdjson_inline simdjson_result document_reference::get_string(bool allow_replacement) noexcept { return doc->get_root_value_iterator().get_root_string(false, allow_replacement); } -simdjson_inline simdjson_result document_reference::get_wobbly_string() noexcept { return doc->get_root_value_iterator().get_root_wobbly_string(false); } -simdjson_inline simdjson_result document_reference::get_raw_json_string() noexcept { return doc->get_root_value_iterator().get_root_raw_json_string(false); } -simdjson_inline simdjson_result document_reference::get_bool() noexcept { return doc->get_root_value_iterator().get_root_bool(false); } -simdjson_inline simdjson_result document_reference::get_value() noexcept { return doc->get_value(); } -simdjson_inline simdjson_result document_reference::is_null() noexcept { return doc->get_root_value_iterator().is_root_null(false); } +simdjson_unused simdjson_inline bool operator==(std::string_view c, const raw_json_string &a) noexcept { + return a == c; +} -#if SIMDJSON_EXCEPTIONS -simdjson_inline document_reference::operator array() & noexcept(false) { return array(*doc); } -simdjson_inline document_reference::operator object() & noexcept(false) { return object(*doc); } -simdjson_inline document_reference::operator uint64_t() noexcept(false) { return get_uint64(); } -simdjson_inline document_reference::operator int64_t() noexcept(false) { return get_int64(); } -simdjson_inline document_reference::operator double() noexcept(false) { return get_double(); } -simdjson_inline document_reference::operator std::string_view() noexcept(false) { return std::string_view(*doc); } -simdjson_inline document_reference::operator raw_json_string() noexcept(false) { return raw_json_string(*doc); } -simdjson_inline document_reference::operator bool() noexcept(false) { return get_bool(); } -simdjson_inline document_reference::operator value() noexcept(false) { return value(*doc); } -#endif -simdjson_inline simdjson_result document_reference::count_elements() & noexcept { return doc->count_elements(); } -simdjson_inline simdjson_result document_reference::count_fields() & noexcept { return doc->count_fields(); } -simdjson_inline simdjson_result document_reference::at(size_t index) & noexcept { return doc->at(index); } -simdjson_inline simdjson_result document_reference::begin() & noexcept { return doc->begin(); } -simdjson_inline simdjson_result document_reference::end() & noexcept { return doc->end(); } -simdjson_inline simdjson_result document_reference::find_field(std::string_view key) & noexcept { return doc->find_field(key); } -simdjson_inline simdjson_result document_reference::find_field(const char *key) & noexcept { return doc->find_field(key); } -simdjson_inline simdjson_result document_reference::operator[](std::string_view key) & noexcept { return (*doc)[key]; } -simdjson_inline simdjson_result document_reference::operator[](const char *key) & noexcept { return (*doc)[key]; } -simdjson_inline simdjson_result document_reference::find_field_unordered(std::string_view key) & noexcept { return doc->find_field_unordered(key); } -simdjson_inline simdjson_result document_reference::find_field_unordered(const char *key) & noexcept { return doc->find_field_unordered(key); } -simdjson_inline simdjson_result document_reference::type() noexcept { return doc->type(); } -simdjson_inline simdjson_result document_reference::is_scalar() noexcept { return doc->is_scalar(); } -simdjson_inline simdjson_result document_reference::current_location() noexcept { return doc->current_location(); } -simdjson_inline int32_t document_reference::current_depth() const noexcept { return doc->current_depth(); } -simdjson_inline bool document_reference::is_negative() noexcept { return doc->is_negative(); } -simdjson_inline simdjson_result document_reference::is_integer() noexcept { return doc->get_root_value_iterator().is_root_integer(false); } -simdjson_inline simdjson_result document_reference::get_number_type() noexcept { return doc->get_root_value_iterator().get_root_number_type(false); } -simdjson_inline simdjson_result document_reference::get_number() noexcept { return doc->get_root_value_iterator().get_root_number(false); } -simdjson_inline simdjson_result document_reference::raw_json_token() noexcept { return doc->raw_json_token(); } -simdjson_inline simdjson_result document_reference::at_pointer(std::string_view json_pointer) noexcept { return doc->at_pointer(json_pointer); } -simdjson_inline simdjson_result document_reference::raw_json() noexcept { return doc->raw_json();} -simdjson_inline document_reference::operator document&() const noexcept { return *doc; } +simdjson_unused simdjson_inline bool operator!=(const raw_json_string &a, std::string_view c) noexcept { + return !(a == c); +} -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson +simdjson_unused simdjson_inline bool operator!=(std::string_view c, const raw_json_string &a) noexcept { + return !(a == c); +} + + +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape(json_iterator &iter, bool allow_replacement) const noexcept { + return iter.unescape(*this, allow_replacement); +} +simdjson_inline simdjson_warn_unused simdjson_result raw_json_string::unescape_wobbly(json_iterator &iter) const noexcept { + return iter.unescape_wobbly(*this); +} + +simdjson_unused simdjson_inline std::ostream &operator<<(std::ostream &out, const raw_json_string &str) noexcept { + bool in_escape = false; + const char *s = str.raw(); + while (true) { + switch (*s) { + case '\\': in_escape = !in_escape; break; + case '"': if (in_escape) { in_escape = false; } else { return out; } break; + default: if (in_escape) { in_escape = false; } + } + out << *s; + s++; + } +} +} // namespace ondemand +} // namespace westmere +} // namespace simdjson namespace simdjson { -simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference value, error_code error) - noexcept : implementation_simdjson_result_base(std::forward(value), error) {} +simdjson_inline simdjson_result::simdjson_result(westmere::ondemand::raw_json_string &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} -simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { +simdjson_inline simdjson_result simdjson_result::raw() const noexcept { if (error()) { return error(); } - return first.count_elements(); + return first.raw(); } -simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape(westmere::ondemand::json_iterator &iter, bool allow_replacement) const noexcept { if (error()) { return error(); } - return first.count_fields(); + return first.unescape(iter, allow_replacement); } -simdjson_inline simdjson_result simdjson_result::at(size_t index) & noexcept { +simdjson_inline simdjson_warn_unused simdjson_result simdjson_result::unescape_wobbly(westmere::ondemand::json_iterator &iter) const noexcept { if (error()) { return error(); } - return first.at(index); + return first.unescape_wobbly(iter); } -simdjson_inline error_code simdjson_result::rewind() noexcept { - if (error()) { return error(); } - first.rewind(); - return SUCCESS; +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_RAW_JSON_STRING_INL_H +/* end file simdjson/generic/ondemand/raw_json_string-inl.h for westmere */ +/* including simdjson/generic/ondemand/serialization-inl.h for westmere: #include "simdjson/generic/ondemand/serialization-inl.h" */ +/* begin file simdjson/generic/ondemand/serialization-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/document-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/serialization.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { + +inline std::string_view trim(const std::string_view str) noexcept { + // We can almost surely do better by rolling our own find_first_not_of function. + size_t first = str.find_first_not_of(" \t\n\r"); + // If we have the empty string (just white space), then no trimming is possible, and + // we return the empty string_view. + if (std::string_view::npos == first) { return std::string_view(); } + size_t last = str.find_last_not_of(" \t\n\r"); + return str.substr(first, (last - first + 1)); } -simdjson_inline simdjson_result simdjson_result::begin() & noexcept { - if (error()) { return error(); } - return first.begin(); + + +inline simdjson_result to_json_string(westmere::ondemand::document& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); } -simdjson_inline simdjson_result simdjson_result::end() & noexcept { - return {}; + +inline simdjson_result to_json_string(westmere::ondemand::document_reference& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); } -simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { - if (error()) { return error(); } - return first.find_field_unordered(key); + +inline simdjson_result to_json_string(westmere::ondemand::value& x) noexcept { + /** + * If we somehow receive a value that has already been consumed, + * then the following code could be in trouble. E.g., we create + * an array as needed, but if an array was already created, then + * it could be bad. + */ + using namespace westmere::ondemand; + westmere::ondemand::json_type t; + auto error = x.type().get(t); + if(error != SUCCESS) { return error; } + switch (t) + { + case json_type::array: + { + westmere::ondemand::array array; + error = x.get_array().get(array); + if(error) { return error; } + return to_json_string(array); + } + case json_type::object: + { + westmere::ondemand::object object; + error = x.get_object().get(object); + if(error) { return error; } + return to_json_string(object); + } + default: + return trim(x.raw_json_token()); + } } -simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) & noexcept { - if (error()) { return error(); } - return first.find_field_unordered(key); + +inline simdjson_result to_json_string(westmere::ondemand::object& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(westmere::ondemand::array& x) noexcept { + std::string_view v; + auto error = x.raw_json().get(v); + if(error) {return error; } + return trim(v); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); +} + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); } -simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { - if (error()) { return error(); } - return first[key]; + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); } -simdjson_inline simdjson_result simdjson_result::operator[](const char *key) & noexcept { - if (error()) { return error(); } - return first[key]; + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); } -simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { - if (error()) { return error(); } - return first.find_field(key); + +inline simdjson_result to_json_string(simdjson_result x) { + if (x.error()) { return x.error(); } + return to_json_string(x.value_unsafe()); } -simdjson_inline simdjson_result simdjson_result::find_field(const char *key) & noexcept { - if (error()) { return error(); } - return first.find_field(key); +} // namespace simdjson + +namespace simdjson { namespace westmere { namespace ondemand { + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } } -simdjson_inline simdjson_result simdjson_result::get_array() & noexcept { - if (error()) { return error(); } - return first.get_array(); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); } -simdjson_inline simdjson_result simdjson_result::get_object() & noexcept { - if (error()) { return error(); } - return first.get_object(); +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::value x) { + std::string_view v; + auto error = simdjson::to_json_string(x).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } } -simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { - if (error()) { return error(); } - return first.get_uint64(); +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } } -simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { - if (error()) { return error(); } - return first.get_uint64_in_string(); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); } -simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { - if (error()) { return error(); } - return first.get_int64(); +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::array value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } } -simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { - if (error()) { return error(); } - return first.get_int64_in_string(); +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } } -simdjson_inline simdjson_result simdjson_result::get_double() noexcept { - if (error()) { return error(); } - return first.get_double(); +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::document_reference& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } } -simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { - if (error()) { return error(); } - return first.get_double_in_string(); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); } -simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { - if (error()) { return error(); } - return first.get_string(allow_replacement); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); } -simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { - if (error()) { return error(); } - return first.get_wobbly_string(); +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::document& value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } } -simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { - if (error()) { return error(); } - return first.get_raw_json_string(); +#endif + +#if SIMDJSON_EXCEPTIONS +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + throw simdjson::simdjson_error(error); + } } -simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { - if (error()) { return error(); } - return first.get_bool(); +inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { + if (x.error()) { throw simdjson::simdjson_error(x.error()); } + return (out << x.value()); } -simdjson_inline simdjson_result simdjson_result::get_value() noexcept { - if (error()) { return error(); } - return first.get_value(); +#else +inline std::ostream& operator<<(std::ostream& out, simdjson::westmere::ondemand::object value) { + std::string_view v; + auto error = simdjson::to_json_string(value).get(v); + if(error == simdjson::SUCCESS) { + return (out << v); + } else { + return (out << error); + } } -simdjson_inline simdjson_result simdjson_result::is_null() noexcept { - if (error()) { return error(); } - return first.is_null(); +#endif +}}} // namespace simdjson::westmere::ondemand + +#endif // SIMDJSON_GENERIC_ONDEMAND_SERIALIZATION_INL_H +/* end file simdjson/generic/ondemand/serialization-inl.h for westmere */ +/* including simdjson/generic/ondemand/token_iterator-inl.h for westmere: #include "simdjson/generic/ondemand/token_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/token_iterator-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/token_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/implementation_simdjson_result_base-inl.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +namespace simdjson { +namespace westmere { +namespace ondemand { + +simdjson_inline token_iterator::token_iterator( + const uint8_t *_buf, + token_position position +) noexcept : buf{_buf}, _position{position} +{ } -simdjson_inline simdjson_result simdjson_result::type() noexcept { - if (error()) { return error(); } - return first.type(); + +simdjson_inline uint32_t token_iterator::current_offset() const noexcept { + return *(_position); } -simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { - if (error()) { return error(); } - return first.is_scalar(); + + +simdjson_inline const uint8_t *token_iterator::return_current_and_advance() noexcept { + return &buf[*(_position++)]; } -simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { - if (error()) { return error(); } - return first.is_negative(); + +simdjson_inline const uint8_t *token_iterator::peek(token_position position) const noexcept { + return &buf[*position]; } -simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { - if (error()) { return error(); } - return first.is_integer(); +simdjson_inline uint32_t token_iterator::peek_index(token_position position) const noexcept { + return *position; } -simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { - if (error()) { return error(); } - return first.get_number_type(); +simdjson_inline uint32_t token_iterator::peek_length(token_position position) const noexcept { + return *(position+1) - *position; } -simdjson_inline simdjson_result simdjson_result::get_number() noexcept { - if (error()) { return error(); } - return first.get_number(); + +simdjson_inline const uint8_t *token_iterator::peek(int32_t delta) const noexcept { + return &buf[*(_position+delta)]; } -#if SIMDJSON_EXCEPTIONS -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() & noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline uint32_t token_iterator::peek_index(int32_t delta) const noexcept { + return *(_position+delta); } -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() & noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline uint32_t token_iterator::peek_length(int32_t delta) const noexcept { + return *(_position+delta+1) - *(_position+delta); } -simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; + +simdjson_inline token_position token_iterator::position() const noexcept { + return _position; } -simdjson_inline simdjson_result::operator int64_t() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline void token_iterator::set_position(token_position target_position) noexcept { + _position = target_position; } -simdjson_inline simdjson_result::operator double() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; + +simdjson_inline bool token_iterator::operator==(const token_iterator &other) const noexcept { + return _position == other._position; } -simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline bool token_iterator::operator!=(const token_iterator &other) const noexcept { + return _position != other._position; } -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline bool token_iterator::operator>(const token_iterator &other) const noexcept { + return _position > other._position; } -simdjson_inline simdjson_result::operator bool() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline bool token_iterator::operator>=(const token_iterator &other) const noexcept { + return _position >= other._position; } -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; +simdjson_inline bool token_iterator::operator<(const token_iterator &other) const noexcept { + return _position < other._position; } -#endif - -simdjson_inline simdjson_result simdjson_result::current_location() noexcept { - if (error()) { return error(); } - return first.current_location(); +simdjson_inline bool token_iterator::operator<=(const token_iterator &other) const noexcept { + return _position <= other._position; } -simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { - if (error()) { return error(); } - return first.raw_json_token(); -} +} // namespace ondemand +} // namespace westmere +} // namespace simdjson -simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { - if (error()) { return error(); } - return first.at_pointer(json_pointer); -} +namespace simdjson { +simdjson_inline simdjson_result::simdjson_result(westmere::ondemand::token_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} } // namespace simdjson -/* end file include/simdjson/generic/ondemand/document-inl.h */ -/* begin file include/simdjson/generic/ondemand/value-inl.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_TOKEN_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/token_iterator-inl.h for westmere */ +/* including simdjson/generic/ondemand/value-inl.h for westmere: #include "simdjson/generic/ondemand/value-inl.h" */ +/* begin file simdjson/generic/ondemand/value-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/array_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/object.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { simdjson_inline value::value(const value_iterator &_iter) noexcept @@ -30733,1356 +86228,1335 @@ simdjson_inline simdjson_result value::at_pointer(std::string_view json_p } } // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION +} // namespace westmere } // namespace simdjson namespace simdjson { -simdjson_inline simdjson_result::simdjson_result( - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value &&value +simdjson_inline simdjson_result::simdjson_result( + westmere::ondemand::value &&value ) noexcept : - implementation_simdjson_result_base( - std::forward(value) + implementation_simdjson_result_base( + std::forward(value) ) { } -simdjson_inline simdjson_result::simdjson_result( +simdjson_inline simdjson_result::simdjson_result( error_code error ) noexcept : - implementation_simdjson_result_base(error) + implementation_simdjson_result_base(error) { } -simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { +simdjson_inline simdjson_result simdjson_result::count_elements() & noexcept { if (error()) { return error(); } return first.count_elements(); } -simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { +simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { if (error()) { return error(); } return first.count_fields(); } -simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { +simdjson_inline simdjson_result simdjson_result::at(size_t index) noexcept { if (error()) { return error(); } return first.at(index); } -simdjson_inline simdjson_result simdjson_result::begin() & noexcept { +simdjson_inline simdjson_result simdjson_result::begin() & noexcept { if (error()) { return error(); } return first.begin(); } -simdjson_inline simdjson_result simdjson_result::end() & noexcept { +simdjson_inline simdjson_result simdjson_result::end() & noexcept { if (error()) { return error(); } return {}; } -simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) noexcept { +simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) noexcept { if (error()) { return error(); } return first.find_field(key); } -simdjson_inline simdjson_result simdjson_result::find_field(const char *key) noexcept { +simdjson_inline simdjson_result simdjson_result::find_field(const char *key) noexcept { if (error()) { return error(); } return first.find_field(key); } -simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) noexcept { +simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) noexcept { if (error()) { return error(); } return first.find_field_unordered(key); } -simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) noexcept { +simdjson_inline simdjson_result simdjson_result::find_field_unordered(const char *key) noexcept { if (error()) { return error(); } return first.find_field_unordered(key); } -simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) noexcept { +simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) noexcept { if (error()) { return error(); } return first[key]; } -simdjson_inline simdjson_result simdjson_result::operator[](const char *key) noexcept { +simdjson_inline simdjson_result simdjson_result::operator[](const char *key) noexcept { if (error()) { return error(); } return first[key]; } -simdjson_inline simdjson_result simdjson_result::get_array() noexcept { +simdjson_inline simdjson_result simdjson_result::get_array() noexcept { if (error()) { return error(); } return first.get_array(); } -simdjson_inline simdjson_result simdjson_result::get_object() noexcept { +simdjson_inline simdjson_result simdjson_result::get_object() noexcept { if (error()) { return error(); } return first.get_object(); } -simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { +simdjson_inline simdjson_result simdjson_result::get_uint64() noexcept { if (error()) { return error(); } return first.get_uint64(); } -simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { +simdjson_inline simdjson_result simdjson_result::get_uint64_in_string() noexcept { if (error()) { return error(); } return first.get_uint64_in_string(); } -simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { +simdjson_inline simdjson_result simdjson_result::get_int64() noexcept { if (error()) { return error(); } return first.get_int64(); } -simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { +simdjson_inline simdjson_result simdjson_result::get_int64_in_string() noexcept { if (error()) { return error(); } return first.get_int64_in_string(); } -simdjson_inline simdjson_result simdjson_result::get_double() noexcept { +simdjson_inline simdjson_result simdjson_result::get_double() noexcept { if (error()) { return error(); } return first.get_double(); } -simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { +simdjson_inline simdjson_result simdjson_result::get_double_in_string() noexcept { if (error()) { return error(); } return first.get_double_in_string(); } -simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { +simdjson_inline simdjson_result simdjson_result::get_string(bool allow_replacement) noexcept { if (error()) { return error(); } return first.get_string(allow_replacement); } -simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { +simdjson_inline simdjson_result simdjson_result::get_wobbly_string() noexcept { if (error()) { return error(); } return first.get_wobbly_string(); } -simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { +simdjson_inline simdjson_result simdjson_result::get_raw_json_string() noexcept { if (error()) { return error(); } return first.get_raw_json_string(); } -simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { +simdjson_inline simdjson_result simdjson_result::get_bool() noexcept { if (error()) { return error(); } return first.get_bool(); } -simdjson_inline simdjson_result simdjson_result::is_null() noexcept { +simdjson_inline simdjson_result simdjson_result::is_null() noexcept { if (error()) { return error(); } return first.is_null(); } -template simdjson_inline simdjson_result simdjson_result::get() noexcept { +template simdjson_inline simdjson_result simdjson_result::get() noexcept { if (error()) { return error(); } return first.get(); } -template simdjson_inline error_code simdjson_result::get(T &out) noexcept { +template simdjson_inline error_code simdjson_result::get(T &out) noexcept { if (error()) { return error(); } return first.get(out); } -template<> simdjson_inline simdjson_result simdjson_result::get() noexcept { +template<> simdjson_inline simdjson_result simdjson_result::get() noexcept { if (error()) { return error(); } return std::move(first); } -template<> simdjson_inline error_code simdjson_result::get(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value &out) noexcept { +template<> simdjson_inline error_code simdjson_result::get(westmere::ondemand::value &out) noexcept { if (error()) { return error(); } out = first; return SUCCESS; } -simdjson_inline simdjson_result simdjson_result::type() noexcept { +simdjson_inline simdjson_result simdjson_result::type() noexcept { if (error()) { return error(); } return first.type(); } -simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { +simdjson_inline simdjson_result simdjson_result::is_scalar() noexcept { if (error()) { return error(); } return first.is_scalar(); } -simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { +simdjson_inline simdjson_result simdjson_result::is_negative() noexcept { if (error()) { return error(); } return first.is_negative(); } -simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { +simdjson_inline simdjson_result simdjson_result::is_integer() noexcept { if (error()) { return error(); } return first.is_integer(); } -simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { +simdjson_inline simdjson_result simdjson_result::get_number_type() noexcept { if (error()) { return error(); } return first.get_number_type(); } -simdjson_inline simdjson_result simdjson_result::get_number() noexcept { +simdjson_inline simdjson_result simdjson_result::get_number() noexcept { if (error()) { return error(); } return first.get_number(); } #if SIMDJSON_EXCEPTIONS -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; -} -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; -} -simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; -} -simdjson_inline simdjson_result::operator int64_t() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; -} -simdjson_inline simdjson_result::operator double() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; -} -simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; -} -simdjson_inline simdjson_result::operator SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::raw_json_string() noexcept(false) { - if (error()) { throw simdjson_error(error()); } - return first; -} -simdjson_inline simdjson_result::operator bool() noexcept(false) { +simdjson_inline simdjson_result::operator westmere::ondemand::array() noexcept(false) { if (error()) { throw simdjson_error(error()); } - return first; -} -#endif - -simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { - if (error()) { return error(); } - return first.raw_json_token(); -} - -simdjson_inline simdjson_result simdjson_result::current_location() noexcept { - if (error()) { return error(); } - return first.current_location(); -} - -simdjson_inline simdjson_result simdjson_result::current_depth() const noexcept { - if (error()) { return error(); } - return first.current_depth(); -} - -simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { - if (error()) { return error(); } - return first.at_pointer(json_pointer); -} - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/value-inl.h */ -/* begin file include/simdjson/generic/ondemand/field-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -// clang 6 doesn't think the default constructor can be noexcept, so we make it explicit -simdjson_inline field::field() noexcept : std::pair() {} - -simdjson_inline field::field(raw_json_string key, ondemand::value &&value) noexcept - : std::pair(key, std::forward(value)) -{ -} - -simdjson_inline simdjson_result field::start(value_iterator &parent_iter) noexcept { - raw_json_string key; - SIMDJSON_TRY( parent_iter.field_key().get(key) ); - SIMDJSON_TRY( parent_iter.field_value() ); - return field::start(parent_iter, key); -} - -simdjson_inline simdjson_result field::start(const value_iterator &parent_iter, raw_json_string key) noexcept { - return field(key, parent_iter.child()); -} - -simdjson_inline simdjson_warn_unused simdjson_result field::unescaped_key(bool allow_replacement) noexcept { - SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() but Visual Studio won't let us. - simdjson_result answer = first.unescape(second.iter.json_iter(), allow_replacement); - first.consume(); - return answer; -} - -simdjson_inline raw_json_string field::key() const noexcept { - SIMDJSON_ASSUME(first.buf != nullptr); // We would like to call .alive() by Visual Studio won't let us. - return first; -} - -simdjson_inline value &field::value() & noexcept { - return second; -} - -simdjson_inline value field::value() && noexcept { - return std::forward(*this).second; -} - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -simdjson_inline simdjson_result::simdjson_result( - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::field &&value -) noexcept : - implementation_simdjson_result_base( - std::forward(value) - ) -{ -} -simdjson_inline simdjson_result::simdjson_result( - error_code error -) noexcept : - implementation_simdjson_result_base(error) -{ -} - -simdjson_inline simdjson_result simdjson_result::key() noexcept { - if (error()) { return error(); } - return first.key(); -} -simdjson_inline simdjson_result simdjson_result::unescaped_key(bool allow_replacement) noexcept { - if (error()) { return error(); } - return first.unescaped_key(allow_replacement); -} -simdjson_inline simdjson_result simdjson_result::value() noexcept { - if (error()) { return error(); } - return std::move(first.value()); -} - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/field-inl.h */ -/* begin file include/simdjson/generic/ondemand/object-inl.h */ -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) & noexcept { - bool has_value; - SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); - if (!has_value) { return NO_SUCH_FIELD; } - return value(iter.child()); -} -simdjson_inline simdjson_result object::find_field_unordered(const std::string_view key) && noexcept { - bool has_value; - SIMDJSON_TRY( iter.find_field_unordered_raw(key).get(has_value) ); - if (!has_value) { return NO_SUCH_FIELD; } - return value(iter.child()); -} -simdjson_inline simdjson_result object::operator[](const std::string_view key) & noexcept { - return find_field_unordered(key); -} -simdjson_inline simdjson_result object::operator[](const std::string_view key) && noexcept { - return std::forward(*this).find_field_unordered(key); -} -simdjson_inline simdjson_result object::find_field(const std::string_view key) & noexcept { - bool has_value; - SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); - if (!has_value) { return NO_SUCH_FIELD; } - return value(iter.child()); -} -simdjson_inline simdjson_result object::find_field(const std::string_view key) && noexcept { - bool has_value; - SIMDJSON_TRY( iter.find_field_raw(key).get(has_value) ); - if (!has_value) { return NO_SUCH_FIELD; } - return value(iter.child()); -} - -simdjson_inline simdjson_result object::start(value_iterator &iter) noexcept { - SIMDJSON_TRY( iter.start_object().error() ); - return object(iter); -} -simdjson_inline simdjson_result object::start_root(value_iterator &iter) noexcept { - SIMDJSON_TRY( iter.start_root_object().error() ); - return object(iter); -} -simdjson_inline error_code object::consume() noexcept { - if(iter.is_at_key()) { - /** - * whenever you are pointing at a key, calling skip_child() is - * unsafe because you will hit a string and you will assume that - * it is string value, and this mistake will lead you to make bad - * depth computation. - */ - /** - * We want to 'consume' the key. We could really - * just do _json_iter->return_current_and_advance(); at this - * point, but, for clarity, we will use the high-level API to - * eat the key. We assume that the compiler optimizes away - * most of the work. - */ - simdjson_unused raw_json_string actual_key; - auto error = iter.field_key().get(actual_key); - if (error) { iter.abandon(); return error; }; - // Let us move to the value while we are at it. - if ((error = iter.field_value())) { iter.abandon(); return error; } - } - auto error_skip = iter.json_iter().skip_child(iter.depth()-1); - if(error_skip) { iter.abandon(); } - return error_skip; -} - -simdjson_inline simdjson_result object::raw_json() noexcept { - const uint8_t * starting_point{iter.peek_start()}; - auto error = consume(); - if(error) { return error; } - const uint8_t * final_point{iter._json_iter->peek(0)}; - return std::string_view(reinterpret_cast(starting_point), size_t(final_point - starting_point)); -} - -simdjson_inline simdjson_result object::started(value_iterator &iter) noexcept { - SIMDJSON_TRY( iter.started_object().error() ); - return object(iter); -} - -simdjson_inline object object::resume(const value_iterator &iter) noexcept { - return iter; -} - -simdjson_inline object::object(const value_iterator &_iter) noexcept - : iter{_iter} -{ -} - -simdjson_inline simdjson_result object::begin() noexcept { -#if SIMDJSON_DEVELOPMENT_CHECKS - if (!iter.is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } -#endif - return object_iterator(iter); -} -simdjson_inline simdjson_result object::end() noexcept { - return object_iterator(iter); -} - -inline simdjson_result object::at_pointer(std::string_view json_pointer) noexcept { - if (json_pointer[0] != '/') { return INVALID_JSON_POINTER; } - json_pointer = json_pointer.substr(1); - size_t slash = json_pointer.find('/'); - std::string_view key = json_pointer.substr(0, slash); - // Grab the child with the given key - simdjson_result child; - - // If there is an escape character in the key, unescape it and then get the child. - size_t escape = key.find('~'); - if (escape != std::string_view::npos) { - // Unescape the key - std::string unescaped(key); - do { - switch (unescaped[escape+1]) { - case '0': - unescaped.replace(escape, 2, "~"); - break; - case '1': - unescaped.replace(escape, 2, "/"); - break; - default: - return INVALID_JSON_POINTER; // "Unexpected ~ escape character in JSON pointer"); - } - escape = unescaped.find('~', escape+1); - } while (escape != std::string::npos); - child = find_field(unescaped); // Take note find_field does not unescape keys when matching - } else { - child = find_field(key); - } - if(child.error()) { - return child; // we do not continue if there was an error - } - // If there is a /, we have to recurse and look up more of the path - if (slash != std::string_view::npos) { - child = child.at_pointer(json_pointer.substr(slash)); - } - return child; -} - -simdjson_inline simdjson_result object::count_fields() & noexcept { - size_t count{0}; - // Important: we do not consume any of the values. - for(simdjson_unused auto v : *this) { count++; } - // The above loop will always succeed, but we want to report errors. - if(iter.error()) { return iter.error(); } - // We need to move back at the start because we expect users to iterate through - // the object after counting the number of elements. - iter.reset_object(); - return count; -} - -simdjson_inline simdjson_result object::is_empty() & noexcept { - bool is_not_empty; - auto error = iter.reset_object().get(is_not_empty); - if(error) { return error; } - return !is_not_empty; -} - -simdjson_inline simdjson_result object::reset() & noexcept { - return iter.reset_object(); -} - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object &&value) noexcept - : implementation_simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : implementation_simdjson_result_base(error) {} - -simdjson_inline simdjson_result simdjson_result::begin() noexcept { - if (error()) { return error(); } - return first.begin(); + return first; } -simdjson_inline simdjson_result simdjson_result::end() noexcept { - if (error()) { return error(); } - return first.end(); +simdjson_inline simdjson_result::operator westmere::ondemand::object() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; } -simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) & noexcept { - if (error()) { return error(); } - return first.find_field_unordered(key); +simdjson_inline simdjson_result::operator uint64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; } -simdjson_inline simdjson_result simdjson_result::find_field_unordered(std::string_view key) && noexcept { - if (error()) { return error(); } - return std::forward(first).find_field_unordered(key); +simdjson_inline simdjson_result::operator int64_t() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; } -simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) & noexcept { - if (error()) { return error(); } - return first[key]; +simdjson_inline simdjson_result::operator double() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; } -simdjson_inline simdjson_result simdjson_result::operator[](std::string_view key) && noexcept { - if (error()) { return error(); } - return std::forward(first)[key]; +simdjson_inline simdjson_result::operator std::string_view() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; } -simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) & noexcept { - if (error()) { return error(); } - return first.find_field(key); +simdjson_inline simdjson_result::operator westmere::ondemand::raw_json_string() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; } -simdjson_inline simdjson_result simdjson_result::find_field(std::string_view key) && noexcept { - if (error()) { return error(); } - return std::forward(first).find_field(key); +simdjson_inline simdjson_result::operator bool() noexcept(false) { + if (error()) { throw simdjson_error(error()); } + return first; } +#endif -simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { +simdjson_inline simdjson_result simdjson_result::raw_json_token() noexcept { if (error()) { return error(); } - return first.at_pointer(json_pointer); + return first.raw_json_token(); } -inline simdjson_result simdjson_result::reset() noexcept { +simdjson_inline simdjson_result simdjson_result::current_location() noexcept { if (error()) { return error(); } - return first.reset(); + return first.current_location(); } -inline simdjson_result simdjson_result::is_empty() noexcept { +simdjson_inline simdjson_result simdjson_result::current_depth() const noexcept { if (error()) { return error(); } - return first.is_empty(); + return first.current_depth(); } -simdjson_inline simdjson_result simdjson_result::count_fields() & noexcept { +simdjson_inline simdjson_result simdjson_result::at_pointer(std::string_view json_pointer) noexcept { if (error()) { return error(); } - return first.count_fields(); + return first.at_pointer(json_pointer); } -simdjson_inline simdjson_result simdjson_result::raw_json() noexcept { - if (error()) { return error(); } - return first.raw_json(); -} } // namespace simdjson -/* end file include/simdjson/generic/ondemand/object-inl.h */ -/* begin file include/simdjson/generic/ondemand/parser-inl.h */ + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_INL_H +/* end file simdjson/generic/ondemand/value-inl.h for westmere */ +/* including simdjson/generic/ondemand/value_iterator-inl.h for westmere: #include "simdjson/generic/ondemand/value_iterator-inl.h" */ +/* begin file simdjson/generic/ondemand/value_iterator-inl.h for westmere */ +#ifndef SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H + +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #define SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/base.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/atomparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/numberparsing.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_iterator.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/json_type-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/raw_json_string-inl.h" */ +/* amalgamation skipped (editor-only): #include "simdjson/generic/ondemand/value_iterator.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { +namespace westmere { namespace ondemand { -simdjson_inline parser::parser(size_t max_capacity) noexcept - : _max_capacity{max_capacity} { +simdjson_inline value_iterator::value_iterator( + json_iterator *json_iter, + depth_t depth, + token_position start_position +) noexcept : _json_iter{json_iter}, _depth{depth}, _start_position{start_position} +{ } -simdjson_warn_unused simdjson_inline error_code parser::allocate(size_t new_capacity, size_t new_max_depth) noexcept { - if (new_capacity > max_capacity()) { return CAPACITY; } - if (string_buf && new_capacity == capacity() && new_max_depth == max_depth()) { return SUCCESS; } +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_object(); +} - // string_capacity copied from document::allocate - _capacity = 0; - size_t string_capacity = SIMDJSON_ROUNDUP_N(5 * new_capacity / 3 + SIMDJSON_PADDING, 64); - string_buf.reset(new (std::nothrow) uint8_t[string_capacity]); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_object() noexcept { + SIMDJSON_TRY( start_container('{', "Not an object", "object") ); + return started_root_object(); +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_object() noexcept { + assert_at_container_start(); #if SIMDJSON_DEVELOPMENT_CHECKS - start_positions.reset(new (std::nothrow) token_position[new_max_depth]); + _json_iter->set_start_position(_depth, start_position()); #endif - if (implementation) { - SIMDJSON_TRY( implementation->set_capacity(new_capacity) ); - SIMDJSON_TRY( implementation->set_max_depth(new_max_depth) ); - } else { - SIMDJSON_TRY( simdjson::get_active_implementation()->create_dom_parser_implementation(new_capacity, new_max_depth, implementation) ); + if (*_json_iter->peek() == '}') { + logger::log_value(*_json_iter, "empty object"); + _json_iter->return_current_and_advance(); + end_container(); + return false; + } + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_object() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // object: e.g., `{"a":2} foo }`. Users concerned with garbage content should + // call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != '}') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing } at end"); + } + // If the last character is } *and* the first gibberish character is also '}' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == '}') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed object. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } } - _capacity = new_capacity; - _max_depth = new_max_depth; return SUCCESS; } -simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(padded_string_view json) & noexcept { - if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_object() noexcept { + auto error = check_root_object(); + if(error) { return error; } + return started_object(); +} - // Allocate if needed - if (capacity() < json.length() || !string_buf) { - SIMDJSON_TRY( allocate(json.length(), max_depth()) ); +simdjson_warn_unused simdjson_inline error_code value_iterator::end_container() noexcept { +#if SIMDJSON_CHECK_EOF + if (depth() > 1 && at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing parent ] or }"); } + // if (depth() <= 1 && !at_end()) { return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing [ or { at start"); } +#endif // SIMDJSON_CHECK_EOF + _json_iter->ascend_to(depth()-1); + return SUCCESS; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_field() noexcept { + assert_at_next(); + + // It's illegal to call this unless there are more tokens: anything that ends in } or ] is + // obligated to verify there are more tokens if they are not the top level. + switch (*_json_iter->return_current_and_advance()) { + case '}': + logger::log_end_value(*_json_iter, "object"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between object fields"); } +} - // Run stage 1. - SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); - return document::start({ reinterpret_cast(json.data()), this }); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_raw(const std::string_view key) noexcept { + error_code error; + bool has_value; + // + // Initially, the object can be in one of a few different places: + // + // 1. The start of the object, at the first field: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + if (at_first_field()) { + has_value = true; + + // + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + return false; + + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + if ((error = skip_child() )) { abandon(); return error; } + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + while (has_value) { + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + //if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); // Skip the value entirely + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + + // If the loop ended, we're out of fields to look at. + return false; } -simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const char *json, size_t len, size_t allocated) & noexcept { - return iterate(padded_string_view(json, len, allocated)); +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::find_field_unordered_raw(const std::string_view key) noexcept { + /** + * When find_field_unordered_raw is called, we can either be pointing at the + * first key, pointing outside (at the closing brace) or if a key was matched + * we can be either pointing right afterthe ':' right before the value (that we need skip), + * or we may have consumed the value and we might be at a comma or at the + * final brace (ready for a call to has_next_field()). + */ + error_code error; + bool has_value; + + // First, we scan from that point to the end. + // If we don't find a match, we may loop back around, and scan from the beginning to that point. + token_position search_start = _json_iter->position(); + + // We want to know whether we need to go back to the beginning. + bool at_first = at_first_field(); + /////////////// + // Initially, the object can be in one of a few different places: + // + // 1. At the first key: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2, index 1) + // ``` + // + if (at_first) { + has_value = true; + + // 2. When a previous search did not yield a value or the object is empty: + // + // ``` + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // { } + // ^ (depth 0, index 2) + // ``` + // + } else if (!is_open()) { + +#if SIMDJSON_DEVELOPMENT_CHECKS + // If we're past the end of the object, we're being iterated out of order. + // Note: this isn't perfect detection. It's possible the user is inside some other object; if so, + // this object iterator will blithely scan that object for fields. + if (_json_iter->depth() < depth() - 1) { return OUT_OF_ORDER_ITERATION; } +#endif + SIMDJSON_TRY(reset_object().get(has_value)); + at_first = true; + // 3. When a previous search found a field or an iterator yielded a value: + // + // ``` + // // When a field was not fully consumed (or not even touched at all) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 2) + // // When a field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // When the last field was fully consumed + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // ``` + // + } else { + // If someone queried a key but they not did access the value, then we are left pointing + // at the ':' and we need to move forward through the value... If the value was + // processed then skip_child() does not move the iterator (but may adjust the depth). + if ((error = skip_child() )) { abandon(); return error; } + search_start = _json_iter->position(); + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } +#if SIMDJSON_DEVELOPMENT_CHECKS + if (_json_iter->start_position(_depth) != start_position()) { return OUT_OF_ORDER_ITERATION; } +#endif + } + + // After initial processing, we will be in one of two states: + // + // ``` + // // At the beginning of a field + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 1) + // // At the end of the object + // { "a": [ 1, 2 ], "b": [ 3, 4 ] } + // ^ (depth 0) + // ``` + // + // Next, we find a match starting from the current position. + while (has_value) { + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + if ((error = field_key().get(actual_key) )) { abandon(); return error; }; + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + if ((error = field_value() )) { abandon(); return error; } + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + if ((error = has_next_field().get(has_value) )) { abandon(); return error; } + } + // Performance note: it maybe wasteful to rewind to the beginning when there might be + // no other query following. Indeed, it would require reskipping the whole object. + // Instead, you can just stay where you are. If there is a new query, there is always time + // to rewind. + if(at_first) { return false; } + + // If we reach the end without finding a match, search the rest of the fields starting at the + // beginning of the object. + // (We have already run through the object before, so we've already validated its structure. We + // don't check errors in this bit.) + SIMDJSON_TRY(reset_object().get(has_value)); + while (true) { + SIMDJSON_ASSUME(has_value); // we should reach search_start before ever reaching the end of the object + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); // We must be at the start of a field + + // Get the key and colon, stopping at the value. + raw_json_string actual_key; + // size_t max_key_length = _json_iter->peek_length() - 2; // -2 for the two quotes + // Note: _json_iter->peek_length() - 2 might overflow if _json_iter->peek_length() < 2. + // field_key() advances the pointer and checks that '"' is found (corresponding to a key). + // The depth is left unchanged by field_key(). + error = field_key().get(actual_key); SIMDJSON_ASSUME(!error); + // field_value() will advance and check that we find a ':' separating the + // key and the value. It will also increment the depth by one. + error = field_value(); SIMDJSON_ASSUME(!error); + + // If it matches, stop and return + // We could do it this way if we wanted to allow arbitrary + // key content (including escaped quotes). + // if (actual_key.unsafe_is_equal(max_key_length, key)) { + // Instead we do the following which may trigger buffer overruns if the + // user provides an adversarial key (containing a well placed unescaped quote + // character and being longer than the number of bytes remaining in the JSON + // input). + if (actual_key.unsafe_is_equal(key)) { + logger::log_event(*this, "match", key, -2); + // If we return here, then we return while pointing at the ':' that we just checked. + return true; + } + + // No match: skip the value and see if , or } is next + logger::log_event(*this, "no match", key, -2); + // The call to skip_child is meant to skip over the value corresponding to the key. + // After skip_child(), we are right before the next comma (',') or the final brace ('}'). + SIMDJSON_TRY( skip_child() ); + // If we reached the end of the key-value pair we started from, then we know + // that the key is not there so we return false. We are either right before + // the next comma or the final brace. + if(_json_iter->position() == search_start) { return false; } + // The has_next_field() advances the pointer and check that either ',' or '}' is found. + // It returns true if ',' is found, false otherwise. If anything other than ',' or '}' is found, + // then we are in error and we abort. + error = has_next_field().get(has_value); SIMDJSON_ASSUME(!error); + // If we make the mistake of exiting here, then we could be left pointing at a key + // in the middle of an object. That's not an allowable state. + } + // If the loop ended, we're out of fields to look at. The program should + // never reach this point. + return false; } +SIMDJSON_POP_DISABLE_WARNINGS -simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const uint8_t *json, size_t len, size_t allocated) & noexcept { - return iterate(padded_string_view(json, len, allocated)); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::field_key() noexcept { + assert_at_next(); + + const uint8_t *key = _json_iter->return_current_and_advance(); + if (*(key++) != '"') { return report_error(TAPE_ERROR, "Object key is not a string"); } + return raw_json_string(key); } -simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(std::string_view json, size_t allocated) & noexcept { - return iterate(padded_string_view(json, allocated)); +simdjson_warn_unused simdjson_inline error_code value_iterator::field_value() noexcept { + assert_at_next(); + + if (*_json_iter->return_current_and_advance() != ':') { return report_error(TAPE_ERROR, "Missing colon in object field"); } + _json_iter->descend_to(depth()+1); + return SUCCESS; } -simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const std::string &json) & noexcept { - return iterate(padded_string_view(json)); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_array(); } -simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { - // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception - SIMDJSON_TRY( result.error() ); - padded_string_view json = result.value_unsafe(); - return iterate(json); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::start_root_array() noexcept { + SIMDJSON_TRY( start_container('[', "Not an array", "array") ); + return started_root_array(); +} + +inline std::string value_iterator::to_string() const noexcept { + auto answer = std::string("value_iterator [ depth : ") + std::to_string(_depth) + std::string(", "); + if(_json_iter != nullptr) { answer += _json_iter->to_string(); } + answer += std::string(" ]"); + return answer; +} + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_array() noexcept { + assert_at_container_start(); + if (*_json_iter->peek() == ']') { + logger::log_value(*_json_iter, "empty array"); + _json_iter->return_current_and_advance(); + SIMDJSON_TRY( end_container() ); + return false; + } + _json_iter->descend_to(depth()+1); +#if SIMDJSON_DEVELOPMENT_CHECKS + _json_iter->set_start_position(_depth, start_position()); +#endif + return true; +} + +simdjson_warn_unused simdjson_inline error_code value_iterator::check_root_array() noexcept { + // When in streaming mode, we cannot expect peek_last() to be the last structural element of the + // current document. It only works in the normal mode where we have indexed a single document. + // Note that adding a check for 'streaming' is not expensive since we only have at most + // one root element. + if ( ! _json_iter->streaming() ) { + // The following lines do not fully protect against garbage content within the + // array: e.g., `[1, 2] foo]`. Users concerned with garbage content should + // also call `at_end()` on the document instance at the end of the processing to + // ensure that the processing has finished at the end. + // + if (*_json_iter->peek_last() != ']') { + _json_iter->abandon(); + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "missing ] at end"); + } + // If the last character is ] *and* the first gibberish character is also ']' + // then on-demand could accidentally go over. So we need additional checks. + // https://github.com/simdjson/simdjson/issues/1834 + // Checking that the document is balanced requires a full scan which is potentially + // expensive, but it only happens in edge cases where the first padding character is + // a closing bracket. + if ((*_json_iter->peek(_json_iter->end_position()) == ']') && (!_json_iter->balanced())) { + _json_iter->abandon(); + // The exact error would require more work. It will typically be an unclosed array. + return report_error(INCOMPLETE_ARRAY_OR_OBJECT, "the document is unbalanced"); + } + } + return SUCCESS; } -simdjson_warn_unused simdjson_inline simdjson_result parser::iterate(const simdjson_result &result) & noexcept { - // We don't presently have a way to temporarily get a const T& from a simdjson_result without throwing an exception - SIMDJSON_TRY( result.error() ); - const padded_string &json = result.value_unsafe(); - return iterate(json); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::started_root_array() noexcept { + auto error = check_root_array(); + if (error) { return error; } + return started_array(); } -simdjson_warn_unused simdjson_inline simdjson_result parser::iterate_raw(padded_string_view json) & noexcept { - if (json.padding() < SIMDJSON_PADDING) { return INSUFFICIENT_PADDING; } +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::has_next_element() noexcept { + assert_at_next(); - // Allocate if needed - if (capacity() < json.length()) { - SIMDJSON_TRY( allocate(json.length(), max_depth()) ); + logger::log_event(*this, "has_next_element"); + switch (*_json_iter->return_current_and_advance()) { + case ']': + logger::log_end_value(*_json_iter, "array"); + SIMDJSON_TRY( end_container() ); + return false; + case ',': + _json_iter->descend_to(depth()+1); + return true; + default: + return report_error(TAPE_ERROR, "Missing comma between array elements"); } - - // Run stage 1. - SIMDJSON_TRY( implementation->stage1(reinterpret_cast(json.data()), json.length(), stage1_mode::regular) ); - return json_iterator(reinterpret_cast(json.data()), this); } -inline simdjson_result parser::iterate_many(const uint8_t *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { - if(batch_size < MINIMAL_BATCH_SIZE) { batch_size = MINIMAL_BATCH_SIZE; } - if(allow_comma_separated && batch_size < len) { batch_size = len; } - return document_stream(*this, buf, len, batch_size, allow_comma_separated); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_bool(const uint8_t *json) const noexcept { + auto not_true = atomparsing::str4ncmp(json, "true"); + auto not_false = atomparsing::str4ncmp(json, "fals") | (json[4] ^ 'e'); + bool error = (not_true && not_false) || jsoncharutils::is_not_structural_or_whitespace(json[not_true ? 5 : 4]); + if (error) { return incorrect_type_error("Not a boolean"); } + return simdjson_result(!not_true); } -inline simdjson_result parser::iterate_many(const char *buf, size_t len, size_t batch_size, bool allow_comma_separated) noexcept { - return iterate_many(reinterpret_cast(buf), len, batch_size, allow_comma_separated); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::parse_null(const uint8_t *json) const noexcept { + bool is_null_string = !atomparsing::str4ncmp(json, "null") && jsoncharutils::is_structural_or_whitespace(json[4]); + // if we start with 'n', we must be a null + if(!is_null_string && json[0]=='n') { return incorrect_type_error("Not a null but starts with n"); } + return is_null_string; } -inline simdjson_result parser::iterate_many(const std::string &s, size_t batch_size, bool allow_comma_separated) noexcept { - return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); + +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_string(bool allow_replacement) noexcept { + return get_raw_json_string().unescape(json_iter(), allow_replacement); } -inline simdjson_result parser::iterate_many(const padded_string &s, size_t batch_size, bool allow_comma_separated) noexcept { - return iterate_many(s.data(), s.length(), batch_size, allow_comma_separated); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_wobbly_string() noexcept { + return get_raw_json_string().unescape_wobbly(json_iter()); } - -simdjson_inline size_t parser::capacity() const noexcept { - return _capacity; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_raw_json_string() noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + advance_scalar("string"); + return raw_json_string(json+1); } -simdjson_inline size_t parser::max_capacity() const noexcept { - return _max_capacity; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64() noexcept { + auto result = numberparsing::parse_unsigned(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; } -simdjson_inline size_t parser::max_depth() const noexcept { - return _max_depth; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_uint64_in_string() noexcept { + auto result = numberparsing::parse_unsigned_in_string(peek_non_root_scalar("uint64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("uint64"); } + return result; } - -simdjson_inline void parser::set_max_capacity(size_t max_capacity) noexcept { - if(max_capacity < dom::MINIMAL_DOCUMENT_CAPACITY) { - _max_capacity = max_capacity; - } else { - _max_capacity = dom::MINIMAL_DOCUMENT_CAPACITY; - } +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64() noexcept { + auto result = numberparsing::parse_integer(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } + return result; } - -simdjson_inline simdjson_warn_unused simdjson_result parser::unescape(raw_json_string in, uint8_t *&dst, bool allow_replacement) const noexcept { - uint8_t *end = implementation->parse_string(in.buf, dst, allow_replacement); - if (!end) { return STRING_ERROR; } - std::string_view result(reinterpret_cast(dst), end-dst); - dst = end; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_int64_in_string() noexcept { + auto result = numberparsing::parse_integer_in_string(peek_non_root_scalar("int64")); + if(result.error() == SUCCESS) { advance_non_root_scalar("int64"); } return result; } - -simdjson_inline simdjson_warn_unused simdjson_result parser::unescape_wobbly(raw_json_string in, uint8_t *&dst) const noexcept { - uint8_t *end = implementation->parse_wobbly_string(in.buf, dst); - if (!end) { return STRING_ERROR; } - std::string_view result(reinterpret_cast(dst), end-dst); - dst = end; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double() noexcept { + auto result = numberparsing::parse_double(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } return result; } - -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson - -namespace simdjson { - -simdjson_inline simdjson_result::simdjson_result(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::parser &&value) noexcept - : implementation_simdjson_result_base(std::forward(value)) {} -simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept - : implementation_simdjson_result_base(error) {} - -} // namespace simdjson -/* end file include/simdjson/generic/ondemand/parser-inl.h */ -/* begin file include/simdjson/generic/ondemand/document_stream-inl.h */ -#include -#include -#include -namespace simdjson { -namespace SIMDJSON_BUILTIN_IMPLEMENTATION { -namespace ondemand { - -#ifdef SIMDJSON_THREADS_ENABLED - -inline void stage1_worker::finish() { - // After calling "run" someone would call finish() to wait - // for the end of the processing. - // This function will wait until either the thread has done - // the processing or, else, the destructor has been called. - std::unique_lock lock(locking_mutex); - cond_var.wait(lock, [this]{return has_work == false;}); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_double_in_string() noexcept { + auto result = numberparsing::parse_double_in_string(peek_non_root_scalar("double")); + if(result.error() == SUCCESS) { advance_non_root_scalar("double"); } + return result; } - -inline stage1_worker::~stage1_worker() { - // The thread may never outlive the stage1_worker instance - // and will always be stopped/joined before the stage1_worker - // instance is gone. - stop_thread(); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_bool() noexcept { + auto result = parse_bool(peek_non_root_scalar("bool")); + if(result.error() == SUCCESS) { advance_non_root_scalar("bool"); } + return result; } - -inline void stage1_worker::start_thread() { - std::unique_lock lock(locking_mutex); - if(thread.joinable()) { - return; // This should never happen but we never want to create more than one thread. - } - thread = std::thread([this]{ - while(true) { - std::unique_lock thread_lock(locking_mutex); - // We wait for either "run" or "stop_thread" to be called. - cond_var.wait(thread_lock, [this]{return has_work || !can_work;}); - // If, for some reason, the stop_thread() method was called (i.e., the - // destructor of stage1_worker is called, then we want to immediately destroy - // the thread (and not do any more processing). - if(!can_work) { - break; - } - this->owner->stage1_thread_error = this->owner->run_stage1(*this->stage1_thread_parser, - this->_next_batch_start); - this->has_work = false; - // The condition variable call should be moved after thread_lock.unlock() for performance - // reasons but thread sanitizers may report it as a data race if we do. - // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock - cond_var.notify_one(); // will notify "finish" - thread_lock.unlock(); - } - } - ); +simdjson_inline simdjson_result value_iterator::is_null() noexcept { + bool is_null_value; + SIMDJSON_TRY(parse_null(peek_non_root_scalar("null")).get(is_null_value)); + if(is_null_value) { advance_non_root_scalar("null"); } + return is_null_value; } - - -inline void stage1_worker::stop_thread() { - std::unique_lock lock(locking_mutex); - // We have to make sure that all locks can be released. - can_work = false; - has_work = false; - cond_var.notify_all(); - lock.unlock(); - if(thread.joinable()) { - thread.join(); - } +simdjson_inline bool value_iterator::is_negative() noexcept { + return numberparsing::is_negative(peek_non_root_scalar("numbersign")); } - -inline void stage1_worker::run(document_stream * ds, parser * stage1, size_t next_batch_start) { - std::unique_lock lock(locking_mutex); - owner = ds; - _next_batch_start = next_batch_start; - stage1_thread_parser = stage1; - has_work = true; - // The condition variable call should be moved after thread_lock.unlock() for performance - // reasons but thread sanitizers may report it as a data race if we do. - // See https://stackoverflow.com/questions/35775501/c-should-condition-variable-be-notified-under-lock - cond_var.notify_one(); // will notify the thread lock that we have work - lock.unlock(); +simdjson_inline bool value_iterator::is_root_negative() noexcept { + return numberparsing::is_negative(peek_root_scalar("numbersign")); } - -#endif // SIMDJSON_THREADS_ENABLED - -simdjson_inline document_stream::document_stream( - ondemand::parser &_parser, - const uint8_t *_buf, - size_t _len, - size_t _batch_size, - bool _allow_comma_separated -) noexcept - : parser{&_parser}, - buf{_buf}, - len{_len}, - batch_size{_batch_size <= MINIMAL_BATCH_SIZE ? MINIMAL_BATCH_SIZE : _batch_size}, - allow_comma_separated{_allow_comma_separated}, - error{SUCCESS} - #ifdef SIMDJSON_THREADS_ENABLED - , use_thread(_parser.threaded) // we need to make a copy because _parser.threaded can change - #endif -{ -#ifdef SIMDJSON_THREADS_ENABLED - if(worker.get() == nullptr) { - error = MEMALLOC; - } -#endif +simdjson_inline simdjson_result value_iterator::is_integer() noexcept { + return numberparsing::is_integer(peek_non_root_scalar("integer")); } - -simdjson_inline document_stream::document_stream() noexcept - : parser{nullptr}, - buf{nullptr}, - len{0}, - batch_size{0}, - allow_comma_separated{false}, - error{UNINITIALIZED} - #ifdef SIMDJSON_THREADS_ENABLED - , use_thread(false) - #endif -{ +simdjson_inline simdjson_result value_iterator::get_number_type() noexcept { + return numberparsing::get_number_type(peek_non_root_scalar("integer")); } - -simdjson_inline document_stream::~document_stream() noexcept -{ - #ifdef SIMDJSON_THREADS_ENABLED - worker.reset(); - #endif +simdjson_inline simdjson_result value_iterator::get_number() noexcept { + number num; + error_code error = numberparsing::parse_number(peek_non_root_scalar("number"), num); + if(error) { return error; } + return num; } -inline size_t document_stream::size_in_bytes() const noexcept { - return len; +simdjson_inline simdjson_result value_iterator::is_root_integer(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("is_root_integer"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + return false; // if there are more than 20 characters, it cannot be represented as an integer. + } + auto answer = numberparsing::is_integer(tmpbuf); + // If the parsing was a success, we must still check that it is + // a single scalar. Note that we parse first because of cases like '[]' where + // getting TRAILING_CONTENT is wrong. + if(check_trailing && (answer.error() == SUCCESS) && (!_json_iter->is_single_token())) { return TRAILING_CONTENT; } + return answer; } -inline size_t document_stream::truncated_bytes() const noexcept { - if(error == CAPACITY) { return len - batch_start; } - return parser->implementation->structural_indexes[parser->implementation->n_structural_indexes] - parser->implementation->structural_indexes[parser->implementation->n_structural_indexes + 1]; +simdjson_inline simdjson_result value_iterator::get_root_number_type(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto answer = numberparsing::get_number_type(tmpbuf); + if (check_trailing && (answer.error() == SUCCESS) && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + return answer; } - -simdjson_inline document_stream::iterator::iterator() noexcept - : stream{nullptr}, finished{true} { +simdjson_inline simdjson_result value_iterator::get_root_number(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("number"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + number num; + error_code error = numberparsing::parse_number(tmpbuf, num); + if(error) { return error; } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("number"); + return num; } - -simdjson_inline document_stream::iterator::iterator(document_stream* _stream, bool is_end) noexcept - : stream{_stream}, finished{is_end} { +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_string(bool check_trailing, bool allow_replacement) noexcept { + return get_root_raw_json_string(check_trailing).unescape(json_iter(), allow_replacement); } - -simdjson_inline simdjson_result document_stream::iterator::operator*() noexcept { - //if(stream->error) { return stream->error; } - return simdjson_result(stream->doc, stream->error); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_wobbly_string(bool check_trailing) noexcept { + return get_root_raw_json_string(check_trailing).unescape_wobbly(json_iter()); } - -simdjson_inline document_stream::iterator& document_stream::iterator::operator++() noexcept { - // If there is an error, then we want the iterator - // to be finished, no matter what. (E.g., we do not - // keep generating documents with errors, or go beyond - // a document with errors.) - // - // Users do not have to call "operator*()" when they use operator++, - // so we need to end the stream in the operator++ function. - // - // Note that setting finished = true is essential otherwise - // we would enter an infinite loop. - if (stream->error) { finished = true; } - // Note that stream->error() is guarded against error conditions - // (it will immediately return if stream->error casts to false). - // In effect, this next function does nothing when (stream->error) - // is true (hence the risk of an infinite loop). - stream->next(); - // If that was the last document, we're finished. - // It is the only type of error we do not want to appear - // in operator*. - if (stream->error == EMPTY) { finished = true; } - // If we had any other kind of error (not EMPTY) then we want - // to pass it along to the operator* and we cannot mark the result - // as "finished" just yet. - return *this; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_raw_json_string(bool check_trailing) noexcept { + auto json = peek_scalar("string"); + if (*json != '"') { return incorrect_type_error("Not a string"); } + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_scalar("string"); + return raw_json_string(json+1); } - -simdjson_inline bool document_stream::iterator::operator!=(const document_stream::iterator &other) const noexcept { - return finished != other.finished; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; } - -simdjson_inline document_stream::iterator document_stream::begin() noexcept { - start(); - // If there are no documents, we're finished. - return iterator(this, error == EMPTY); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_uint64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("uint64"); + uint8_t tmpbuf[20+1+1]{}; // <20 digits> is the longest possible unsigned integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_unsigned_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("uint64"); + } + return result; } +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; + } -simdjson_inline document_stream::iterator document_stream::end() noexcept { - return iterator(this, true); + auto result = numberparsing::parse_integer(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); + } + return result; } - -inline void document_stream::start() noexcept { - if (error) { return; } - error = parser->allocate(batch_size); - if (error) { return; } - // Always run the first stage 1 parse immediately - batch_start = 0; - error = run_stage1(*parser, batch_start); - while(error == EMPTY) { - // In exceptional cases, we may start with an empty block - batch_start = next_batch_start(); - if (batch_start >= len) { return; } - error = run_stage1(*parser, batch_start); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_int64_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("int64"); + uint8_t tmpbuf[20+1+1]; // -<19 digits> is the longest possible integer + tmpbuf[20+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 20+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 20 characters"); + return NUMBER_ERROR; } - if (error) { return; } - doc_index = batch_start; - doc = document(json_iterator(&buf[batch_start], parser)); - doc.iter._streaming = true; - #ifdef SIMDJSON_THREADS_ENABLED - if (use_thread && next_batch_start() < len) { - // Kick off the first thread on next batch if needed - error = stage1_thread_parser.allocate(batch_size); - if (error) { return; } - worker->start_thread(); - start_stage1_thread(); - if (error) { return; } + auto result = numberparsing::parse_integer_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("int64"); } - #endif // SIMDJSON_THREADS_ENABLED + return result; } - -inline void document_stream::next() noexcept { - // We always enter at once once in an error condition. - if (error) { return; } - next_document(); - if (error) { return; } - auto cur_struct_index = doc.iter._root - parser->implementation->structural_indexes.get(); - doc_index = batch_start + parser->implementation->structural_indexes[cur_struct_index]; - - // Check if at end of structural indexes (i.e. at end of batch) - if(cur_struct_index >= static_cast(parser->implementation->n_structural_indexes)) { - error = EMPTY; - // Load another batch (if available) - while (error == EMPTY) { - batch_start = next_batch_start(); - if (batch_start >= len) { break; } - #ifdef SIMDJSON_THREADS_ENABLED - if(use_thread) { - load_from_stage1_thread(); - } else { - error = run_stage1(*parser, batch_start); - } - #else - error = run_stage1(*parser, batch_start); - #endif - /** - * Whenever we move to another window, we need to update all pointers to make - * it appear as if the input buffer started at the beginning of the window. - * - * Take this input: - * - * {"z":5} {"1":1,"2":2,"4":4} [7, 10, 9] [15, 11, 12, 13] [154, 110, 112, 1311] - * - * Say you process the following window... - * - * '{"z":5} {"1":1,"2":2,"4":4} [7, 10, 9]' - * - * When you do so, the json_iterator has a pointer at the beginning of the memory region - * (pointing at the beginning of '{"z"...'. - * - * When you move to the window that starts at... - * - * '[7, 10, 9] [15, 11, 12, 13] ... - * - * then it is not sufficient to just run stage 1. You also need to re-anchor the - * json_iterator so that it believes we are starting at '[7, 10, 9]...'. - * - * Under the DOM front-end, this gets done automatically because the parser owns - * the pointer the data, and when you call stage1 and then stage2 on the same - * parser, then stage2 will run on the pointer acquired by stage1. - * - * That is, stage1 calls "this->buf = _buf" so the parser remembers the buffer that - * we used. But json_iterator has no callback when stage1 is called on the parser. - * In fact, I think that the parser is unaware of json_iterator. - * - * - * So we need to re-anchor the json_iterator after each call to stage 1 so that - * all of the pointers are in sync. - */ - doc.iter = json_iterator(&buf[batch_start], parser); - doc.iter._streaming = true; - /** - * End of resync. - */ - - if (error) { continue; } // If the error was EMPTY, we may want to load another batch. - doc_index = batch_start; - } +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); } + return result; } -inline void document_stream::next_document() noexcept { - // Go to next place where depth=0 (document depth) - error = doc.iter.skip_child(0); - if (error) { return; } - // Always set depth=1 at the start of document - doc.iter._depth = 1; - // consume comma if comma separated is allowed - if (allow_comma_separated) { doc.iter.consume_character(','); } - // Resets the string buffer at the beginning, thus invalidating the strings. - doc.iter._string_buf_loc = parser->string_buf.get(); - doc.iter._root = doc.iter.position(); +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_double_in_string(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("double"); + // Per https://www.exploringbinary.com/maximum-number-of-decimal-digits-in-binary-floating-point-numbers/, + // 1074 is the maximum number of significant fractional digits. Add 8 more digits for the biggest + // number: -0.e-308. + uint8_t tmpbuf[1074+8+1+1]; // +1 for null termination. + tmpbuf[1074+8+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 1074+8+1)) { + logger::log_error(*_json_iter, start_position(), depth(), "Root number more than 1082 characters"); + return NUMBER_ERROR; + } + auto result = numberparsing::parse_double_in_string(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("double"); + } + return result; } - -inline size_t document_stream::next_batch_start() const noexcept { - return batch_start + parser->implementation->structural_indexes[parser->implementation->n_structural_indexes]; +simdjson_warn_unused simdjson_inline simdjson_result value_iterator::get_root_bool(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("bool"); + uint8_t tmpbuf[5+1+1]; // +1 for null termination + tmpbuf[5+1] = '\0'; // make sure that buffer is always null terminated. + if (!_json_iter->copy_to_buffer(json, max_len, tmpbuf, 5+1)) { return incorrect_type_error("Not a boolean"); } + auto result = parse_bool(tmpbuf); + if(result.error() == SUCCESS) { + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("bool"); + } + return result; } - -inline error_code document_stream::run_stage1(ondemand::parser &p, size_t _batch_start) noexcept { - // This code only updates the structural index in the parser, it does not update any json_iterator - // instance. - size_t remaining = len - _batch_start; - if (remaining <= batch_size) { - return p.implementation->stage1(&buf[_batch_start], remaining, stage1_mode::streaming_final); - } else { - return p.implementation->stage1(&buf[_batch_start], batch_size, stage1_mode::streaming_partial); +simdjson_inline simdjson_result value_iterator::is_root_null(bool check_trailing) noexcept { + auto max_len = peek_start_length(); + auto json = peek_root_scalar("null"); + bool result = (max_len >= 4 && !atomparsing::str4ncmp(json, "null") && + (max_len == 4 || jsoncharutils::is_structural_or_whitespace(json[4]))); + if(result) { // we have something that looks like a null. + if (check_trailing && !_json_iter->is_single_token()) { return TRAILING_CONTENT; } + advance_root_scalar("null"); } + return result; } -simdjson_inline size_t document_stream::iterator::current_index() const noexcept { - return stream->doc_index; +simdjson_warn_unused simdjson_inline error_code value_iterator::skip_child() noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth >= _depth ); + + return _json_iter->skip_child(depth()); } -simdjson_inline std::string_view document_stream::iterator::source() const noexcept { - auto depth = stream->doc.iter.depth(); - auto cur_struct_index = stream->doc.iter._root - stream->parser->implementation->structural_indexes.get(); +simdjson_inline value_iterator value_iterator::child() const noexcept { + assert_at_child(); + return { _json_iter, depth()+1, _json_iter->token.position() }; +} - // If at root, process the first token to determine if scalar value - if (stream->doc.iter.at_root()) { - switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { - case '{': case '[': // Depth=1 already at start of document - break; - case '}': case ']': - depth--; - break; - default: // Scalar value document - // TODO: Remove any trailing whitespaces - // This returns a string spanning from start of value to the beginning of the next document (excluded) - return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[++cur_struct_index] - current_index() - 1); - } - cur_struct_index++; - } +// GCC 7 warns when the first line of this function is inlined away into oblivion due to the caller +// relating depth and iterator depth, which is a desired effect. It does not happen if is_open is +// marked non-inline. +SIMDJSON_PUSH_DISABLE_WARNINGS +SIMDJSON_DISABLE_STRICT_OVERFLOW_WARNING +simdjson_inline bool value_iterator::is_open() const noexcept { + return _json_iter->depth() >= depth(); +} +SIMDJSON_POP_DISABLE_WARNINGS - while (cur_struct_index <= static_cast(stream->parser->implementation->n_structural_indexes)) { - switch (stream->buf[stream->batch_start + stream->parser->implementation->structural_indexes[cur_struct_index]]) { - case '{': case '[': - depth++; - break; - case '}': case ']': - depth--; - break; - } - if (depth == 0) { break; } - cur_struct_index++; - } +simdjson_inline bool value_iterator::at_end() const noexcept { + return _json_iter->at_end(); +} - return std::string_view(reinterpret_cast(stream->buf) + current_index(), stream->parser->implementation->structural_indexes[cur_struct_index] - current_index() + stream->batch_start + 1);; +simdjson_inline bool value_iterator::at_start() const noexcept { + return _json_iter->token.position() == start_position(); } -inline error_code document_stream::iterator::error() const noexcept { - return stream->error; +simdjson_inline bool value_iterator::at_first_field() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + return _json_iter->token.position() == start_position() + 1; } -#ifdef SIMDJSON_THREADS_ENABLED +simdjson_inline void value_iterator::abandon() noexcept { + _json_iter->abandon(); +} -inline void document_stream::load_from_stage1_thread() noexcept { - worker->finish(); - // Swap to the parser that was loaded up in the thread. Make sure the parser has - // enough memory to swap to, as well. - std::swap(stage1_thread_parser,*parser); - error = stage1_thread_error; - if (error) { return; } +simdjson_warn_unused simdjson_inline depth_t value_iterator::depth() const noexcept { + return _depth; +} +simdjson_warn_unused simdjson_inline error_code value_iterator::error() const noexcept { + return _json_iter->error; +} +simdjson_warn_unused simdjson_inline uint8_t *&value_iterator::string_buf_loc() noexcept { + return _json_iter->string_buf_loc(); +} +simdjson_warn_unused simdjson_inline const json_iterator &value_iterator::json_iter() const noexcept { + return *_json_iter; +} +simdjson_warn_unused simdjson_inline json_iterator &value_iterator::json_iter() noexcept { + return *_json_iter; +} - // If there's anything left, start the stage 1 thread! - if (next_batch_start() < len) { - start_stage1_thread(); - } +simdjson_inline const uint8_t *value_iterator::peek_start() const noexcept { + return _json_iter->peek(start_position()); +} +simdjson_inline uint32_t value_iterator::peek_start_length() const noexcept { + return _json_iter->peek_length(start_position()); } -inline void document_stream::start_stage1_thread() noexcept { - // we call the thread on a lambda that will update - // this->stage1_thread_error - // there is only one thread that may write to this value - // TODO this is NOT exception-safe. - this->stage1_thread_error = UNINITIALIZED; // In case something goes wrong, make sure it's an error - size_t _next_batch_start = this->next_batch_start(); +simdjson_inline const uint8_t *value_iterator::peek_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return peek_start(); } - worker->run(this, & this->stage1_thread_parser, _next_batch_start); + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + return _json_iter->peek(); } -#endif // SIMDJSON_THREADS_ENABLED +simdjson_inline void value_iterator::advance_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + if (!is_at_start()) { return; } -} // namespace ondemand -} // namespace SIMDJSON_BUILTIN_IMPLEMENTATION -} // namespace simdjson + // Get the JSON and advance the cursor, decreasing depth to signify that we have retrieved the value. + assert_at_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); +} -namespace simdjson { +simdjson_inline error_code value_iterator::start_container(uint8_t start_char, const char *incorrect_type_message, const char *type) noexcept { + logger::log_start_value(*_json_iter, start_position(), depth(), type); + // If we're not at the position anymore, we don't want to advance the cursor. + const uint8_t *json; + if (!is_at_start()) { +#if SIMDJSON_DEVELOPMENT_CHECKS + if (!is_at_iterator_start()) { return OUT_OF_ORDER_ITERATION; } +#endif + json = peek_start(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + } else { + assert_at_start(); + /** + * We should be prudent. Let us peek. If it is not the right type, we + * return an error. Only once we have determined that we have the right + * type are we allowed to advance! + */ + json = _json_iter->peek(); + if (*json != start_char) { return incorrect_type_error(incorrect_type_message); } + _json_iter->return_current_and_advance(); + } -simdjson_inline simdjson_result::simdjson_result( - error_code error -) noexcept : - implementation_simdjson_result_base(error) -{ -} -simdjson_inline simdjson_result::simdjson_result( - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_stream &&value -) noexcept : - implementation_simdjson_result_base( - std::forward(value) - ) -{ -} + return SUCCESS; } -/* end file include/simdjson/generic/ondemand/document_stream-inl.h */ -/* begin file include/simdjson/generic/ondemand/serialization-inl.h */ -namespace simdjson { +simdjson_inline const uint8_t *value_iterator::peek_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } -inline std::string_view trim(const std::string_view str) noexcept { - // We can almost surely do better by rolling our own find_first_not_of function. - size_t first = str.find_first_not_of(" \t\n\r"); - // If we have the empty string (just white space), then no trimming is possible, and - // we return the empty string_view. - if (std::string_view::npos == first) { return std::string_view(); } - size_t last = str.find_last_not_of(" \t\n\r"); - return str.substr(first, (last - first + 1)); + assert_at_root(); + return _json_iter->peek(); } +simdjson_inline const uint8_t *value_iterator::peek_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return peek_start(); } + assert_at_non_root_start(); + return _json_iter->peek(); +} -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& x) noexcept { - std::string_view v; - auto error = x.raw_json().get(v); - if(error) {return error; } - return trim(v); +simdjson_inline void value_iterator::advance_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } + + assert_at_root(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); } +simdjson_inline void value_iterator::advance_non_root_scalar(const char *type) noexcept { + logger::log_value(*_json_iter, start_position(), depth(), type); + if (!is_at_start()) { return; } -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference& x) noexcept { - std::string_view v; - auto error = x.raw_json().get(v); - if(error) {return error; } - return trim(v); + assert_at_non_root_start(); + _json_iter->return_current_and_advance(); + _json_iter->ascend_to(depth()-1); } -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value& x) noexcept { - /** - * If we somehow receive a value that has already been consumed, - * then the following code could be in trouble. E.g., we create - * an array as needed, but if an array was already created, then - * it could be bad. - */ - using namespace SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand; - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::json_type t; - auto error = x.type().get(t); - if(error != SUCCESS) { return error; } - switch (t) - { - case json_type::array: - { - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array array; - error = x.get_array().get(array); - if(error) { return error; } - return to_json_string(array); - } - case json_type::object: - { - SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object object; - error = x.get_object().get(object); - if(error) { return error; } - return to_json_string(object); - } - default: - return trim(x.raw_json_token()); - } +simdjson_inline error_code value_iterator::incorrect_type_error(const char *message) const noexcept { + logger::log_error(*_json_iter, start_position(), depth(), message); + return INCORRECT_TYPE; } -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object& x) noexcept { - std::string_view v; - auto error = x.raw_json().get(v); - if(error) {return error; } - return trim(v); +simdjson_inline bool value_iterator::is_at_start() const noexcept { + return position() == start_position(); } -inline simdjson_result to_json_string(SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array& x) noexcept { - std::string_view v; - auto error = x.raw_json().get(v); - if(error) {return error; } - return trim(v); +simdjson_inline bool value_iterator::is_at_key() const noexcept { + // Keys are at the same depth as the object. + // Note here that we could be safer and check that we are within an object, + // but we do not. + return _depth == _json_iter->_depth && *_json_iter->peek() == '"'; } -inline simdjson_result to_json_string(simdjson_result x) { - if (x.error()) { return x.error(); } - return to_json_string(x.value_unsafe()); +simdjson_inline bool value_iterator::is_at_iterator_start() const noexcept { + // We can legitimately be either at the first value ([1]), or after the array if it's empty ([]). + auto delta = position() - start_position(); + return delta == 1 || delta == 2; } -inline simdjson_result to_json_string(simdjson_result x) { - if (x.error()) { return x.error(); } - return to_json_string(x.value_unsafe()); +inline void value_iterator::assert_at_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); } -inline simdjson_result to_json_string(simdjson_result x) { - if (x.error()) { return x.error(); } - return to_json_string(x.value_unsafe()); +inline void value_iterator::assert_at_container_start() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position == _start_position + 1 ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); } -inline simdjson_result to_json_string(simdjson_result x) { - if (x.error()) { return x.error(); } - return to_json_string(x.value_unsafe()); +inline void value_iterator::assert_at_next() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth ); + SIMDJSON_ASSUME( _depth > 0 ); } -inline simdjson_result to_json_string(simdjson_result x) { - if (x.error()) { return x.error(); } - return to_json_string(x.value_unsafe()); +simdjson_inline void value_iterator::move_at_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position); } -} // namespace simdjson -namespace simdjson { namespace SIMDJSON_BUILTIN_IMPLEMENTATION { namespace ondemand { +simdjson_inline void value_iterator::move_at_container_start() noexcept { + _json_iter->_depth = _depth; + _json_iter->token.set_position(_start_position + 1); +} -#if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value x) { - std::string_view v; - auto error = simdjson::to_json_string(x).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - throw simdjson::simdjson_error(error); - } +simdjson_inline simdjson_result value_iterator::reset_array() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_array(); } -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { - if (x.error()) { throw simdjson::simdjson_error(x.error()); } - return (out << x.value()); + +simdjson_inline simdjson_result value_iterator::reset_object() noexcept { + if(error()) { return error(); } + move_at_container_start(); + return started_object(); } -#else -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::value x) { - std::string_view v; - auto error = simdjson::to_json_string(x).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - return (out << error); - } + +inline void value_iterator::assert_at_child() const noexcept { + SIMDJSON_ASSUME( _json_iter->token._position > _start_position ); + SIMDJSON_ASSUME( _json_iter->_depth == _depth + 1 ); + SIMDJSON_ASSUME( _depth > 0 ); } -#endif -#if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array value) { - std::string_view v; - auto error = simdjson::to_json_string(value).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - throw simdjson::simdjson_error(error); - } +inline void value_iterator::assert_at_root() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth == 1 ); } -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { - if (x.error()) { throw simdjson::simdjson_error(x.error()); } - return (out << x.value()); + +inline void value_iterator::assert_at_non_root_start() const noexcept { + assert_at_start(); + SIMDJSON_ASSUME( _depth > 1 ); } -#else -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::array value) { - std::string_view v; - auto error = simdjson::to_json_string(value).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - return (out << error); - } + +inline void value_iterator::assert_is_valid() const noexcept { + SIMDJSON_ASSUME( _json_iter != nullptr ); } -#endif -#if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& value) { - std::string_view v; - auto error = simdjson::to_json_string(value).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - throw simdjson::simdjson_error(error); - } +simdjson_inline bool value_iterator::is_valid() const noexcept { + return _json_iter != nullptr; } -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document_reference& value) { - std::string_view v; - auto error = simdjson::to_json_string(value).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - throw simdjson::simdjson_error(error); + +simdjson_inline simdjson_result value_iterator::type() const noexcept { + switch (*peek_start()) { + case '{': + return json_type::object; + case '[': + return json_type::array; + case '"': + return json_type::string; + case 'n': + return json_type::null; + case 't': case 'f': + return json_type::boolean; + case '-': + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + return json_type::number; + default: + return TAPE_ERROR; } } -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { - if (x.error()) { throw simdjson::simdjson_error(x.error()); } - return (out << x.value()); + +simdjson_inline token_position value_iterator::start_position() const noexcept { + return _start_position; } -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result&& x) { - if (x.error()) { throw simdjson::simdjson_error(x.error()); } - return (out << x.value()); + +simdjson_inline token_position value_iterator::position() const noexcept { + return _json_iter->position(); } -#else -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::document& value) { - std::string_view v; - auto error = simdjson::to_json_string(value).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - return (out << error); - } + +simdjson_inline token_position value_iterator::end_position() const noexcept { + return _json_iter->end_position(); } -#endif -#if SIMDJSON_EXCEPTIONS -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object value) { - std::string_view v; - auto error = simdjson::to_json_string(value).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - throw simdjson::simdjson_error(error); - } +simdjson_inline token_position value_iterator::last_position() const noexcept { + return _json_iter->last_position(); } -inline std::ostream& operator<<(std::ostream& out, simdjson::simdjson_result x) { - if (x.error()) { throw simdjson::simdjson_error(x.error()); } - return (out << x.value()); + +simdjson_inline error_code value_iterator::report_error(error_code error, const char *message) noexcept { + return _json_iter->report_error(error, message); } + +} // namespace ondemand +} // namespace westmere +} // namespace simdjson + +namespace simdjson { + +simdjson_inline simdjson_result::simdjson_result(westmere::ondemand::value_iterator &&value) noexcept + : implementation_simdjson_result_base(std::forward(value)) {} +simdjson_inline simdjson_result::simdjson_result(error_code error) noexcept + : implementation_simdjson_result_base(error) {} + +} // namespace simdjson + +#endif // SIMDJSON_GENERIC_ONDEMAND_VALUE_ITERATOR_INL_H +/* end file simdjson/generic/ondemand/value_iterator-inl.h for westmere */ +/* end file simdjson/generic/ondemand/amalgamated.h for westmere */ +/* including simdjson/westmere/end.h: #include "simdjson/westmere/end.h" */ +/* begin file simdjson/westmere/end.h */ +/* amalgamation skipped (editor-only): #ifndef SIMDJSON_CONDITIONAL_INCLUDE */ +/* amalgamation skipped (editor-only): #include "simdjson/westmere/base.h" */ +/* amalgamation skipped (editor-only): #endif // SIMDJSON_CONDITIONAL_INCLUDE */ + +#if !SIMDJSON_CAN_ALWAYS_RUN_WESTMERE +SIMDJSON_UNTARGET_REGION +#endif + +/* undefining SIMDJSON_IMPLEMENTATION from "westmere" */ +#undef SIMDJSON_IMPLEMENTATION +/* end file simdjson/westmere/end.h */ + +#endif // SIMDJSON_WESTMERE_IMPLEMENTATION_H +/* end file simdjson/westmere/ondemand.h */ #else -inline std::ostream& operator<<(std::ostream& out, simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand::object value) { - std::string_view v; - auto error = simdjson::to_json_string(value).get(v); - if(error == simdjson::SUCCESS) { - return (out << v); - } else { - return (out << error); - } -} +#error Unknown SIMDJSON_BUILTIN_IMPLEMENTATION #endif -}}} // namespace simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand -/* end file include/simdjson/generic/ondemand/serialization-inl.h */ -/* end file include/simdjson/generic/ondemand-inl.h */ +/* undefining SIMDJSON_CONDITIONAL_INCLUDE */ +#undef SIMDJSON_CONDITIONAL_INCLUDE namespace simdjson { - /** - * Represents the best statically linked simdjson implementation that can be used by the compiling - * program. - * - * Detects what options the program is compiled against, and picks the minimum implementation that - * will work on any computer that can run the program. For example, if you compile with g++ - * -march=westmere, it will pick the westmere implementation. The haswell implementation will - * still be available, and can be selected at runtime, but the builtin implementation (and any - * code that uses it) will use westmere. - */ - namespace builtin = SIMDJSON_BUILTIN_IMPLEMENTATION; /** * @copydoc simdjson::SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand */ namespace ondemand = SIMDJSON_BUILTIN_IMPLEMENTATION::ondemand; +} // namespace simdjson + +#endif // SIMDJSON_BUILTIN_ONDEMAND_H +/* end file simdjson/builtin/ondemand.h */ + +namespace simdjson { /** - * Function which returns a pointer to an implementation matching the "builtin" implementation. - * The builtin implementation is the best statically linked simdjson implementation that can be used by the compiling - * program. If you compile with g++ -march=haswell, this will return the haswell implementation. - * It is handy to be able to check what builtin was used: builtin_implementation()->name(). + * @copydoc simdjson::builtin::ondemand */ - const implementation * builtin_implementation(); + namespace ondemand = builtin::ondemand; } // namespace simdjson -#endif // SIMDJSON_BUILTIN_H -/* end file include/simdjson/builtin.h */ +#endif // SIMDJSON_ONDEMAND_H +/* end file simdjson/ondemand.h */ #endif // SIMDJSON_H -/* end file include/simdjson.h */ +/* end file simdjson.h */ diff --git a/hybridse/src/codegen/udf_ir_builder_test.cc b/hybridse/src/codegen/udf_ir_builder_test.cc index bd70b4ab2ab..13a82a1a925 100644 --- a/hybridse/src/codegen/udf_ir_builder_test.cc +++ b/hybridse/src/codegen/udf_ir_builder_test.cc @@ -1463,6 +1463,9 @@ TEST_F(UdfIRBuilderTest, AddMonths) { CheckUdf, Date, int64_t>("add_months", Date(2013, 3, 31), Date(2012, 1, 31), 14); } +// ========================================================================= // +// JSON functions +// ========================================================================= // TEST_F(UdfIRBuilderTest, JsonArrayLength) { CheckUdf, Nullable>("json_array_length", 0, "[]"); CheckUdf, Nullable>("json_array_length", 3, "[1,2,3]"); @@ -1473,6 +1476,73 @@ TEST_F(UdfIRBuilderTest, JsonArrayLength) { CheckUdf, Nullable>("json_array_length", nullptr, nullptr); } +TEST_F(UdfIRBuilderTest, GetJsonObject) { + std::string_view json = R"( + { + "foo": ["bar", "baz"], + "": 0, + "a/b": 1, + "c%d": 2, + "e^f": 3, + "g|h": 4, + "i\\j": 5, + "k\"l": 6, + " ": 7, + "m~n": 8, + "o\p": 9, + })"; + std::initializer_list>> cases = { + // empty json path evaluate to whole document + {"[]", "[]", ""}, + {R"({"k": "val"})", R"({"k": "val"})", ""}, + + {absl::StripAsciiWhitespace(json), json, ""}, + {R"(["bar", "baz"])", json, "/foo"}, + {"bar", json, "/foo/0"}, + {"baz", json, "/foo/1"}, + {nullptr, json, "/foo/2"}, + {"0", json, "/"}, + {"1", json, "/a~1b"}, // '/' encoded as '~1' + {"2", json, "/c%d"}, + {"3", json, "/e^f"}, + {"4", json, "/g|h"}, + {"5", json, R"(/i\\j)"}, + {"6", json, R"(/k\"l)"}, + {"7", json, "/ "}, + {"8", json, "/m~0n"}, // '~' encoded as '~0' + {"9", json, R"(/o\p)"}, // any character can be escaped + {nullptr, json, "/bar"}, + {nullptr, json, "/bar/0"}, + + {"", R"({"a": ""})", "/a"}, + {"str", R"({"a": "str"})", "/a"}, + {"1", R"({"a": 1})", "/a"}, + {"null", R"({"a": null})", "/a"}, + {"true", R"({"a": true})", "/a"}, + {"false", R"({"a": false})", "/a"}, + {R"({"c": "d"})", R"({"a": {"c": "d"}})", "/a"}, + + {nullptr, "{", ""}, + {nullptr, R"({"a"})", "/a"}, + + // get_json_object do not fully valid the querying object + {"flase", R"({"a": flase})", "/a"}, + {"ni", R"({"a": ni})", "/a"}, + {"9n", R"({"a": 9n})", "/a"}, + {"-x", R"({"a": -x})", "/a"}, + {"[nx]", R"({"a": [nx]})", "/a"}, + {R"({"g": trx})", R"({"a": {"g": trx}})", "/a"}, + + // invalid array/object part result in strange behavior, won't assert in tests + // {R"({"g":}})", R"({"a": {"g":}})", "/a"}, + // {"[xxy}", R"({"a": [xxy})", "/a"}, + }; + + for (auto cs : cases) { + CheckUdf, Nullable, Nullable>("get_json_object", cs[0], cs[1], cs[2]); + } +} + } // namespace codegen } // namespace hybridse diff --git a/hybridse/src/udf/default_defs/json_defs.cc b/hybridse/src/udf/default_defs/json_defs.cc index d48a64b53cb..03f8ef3e404 100644 --- a/hybridse/src/udf/default_defs/json_defs.cc +++ b/hybridse/src/udf/default_defs/json_defs.cc @@ -16,13 +16,14 @@ #include "simdjson.h" #include "udf/default_udf_library.h" +#include "udf/udf.h" #include "udf/udf_library.h" #include "udf/udf_registry.h" namespace hybridse { namespace udf { -void json_array_length(openmldb::base::StringRef* in, int32_t* sz, bool* is_null) { +void json_array_length(openmldb::base::StringRef* in, int32_t* sz, bool* is_null) noexcept { *is_null = true; simdjson::ondemand::parser parser; @@ -47,6 +48,63 @@ void json_array_length(openmldb::base::StringRef* in, int32_t* sz, bool* is_null *sz = static_cast(arr_sz); } +void get_json_object(openmldb::base::StringRef* in, openmldb::base::StringRef* json_path, + openmldb::base::StringRef* out, bool* is_null) noexcept { + *is_null = true; + + simdjson::ondemand::parser parser; + simdjson::padded_string json(in->data_, in->size_); + simdjson::ondemand::document doc; + simdjson::error_code err = simdjson::error_code::SUCCESS; + + if (parser.iterate(json).tie(doc, err); err) { + return; + } + + simdjson::ondemand::value val; + std::string_view path(json_path->data_, json_path->size_); + if (doc.at_pointer(path).tie(val, err); err) { + return; + } + + simdjson::ondemand::json_type type; + if (val.type().tie(type, err); err) { + return; + } + std::string_view raw_str; + switch (type) { + // NOTE: JSON validation skipped for null/bool/number/array/object simplify for performance, + // string value always checked. + // Recheck here if u think more accurate syntax check is necessary. + case simdjson::ondemand::json_type::null: + case simdjson::ondemand::json_type::boolean: + case simdjson::ondemand::json_type::number: + case simdjson::ondemand::json_type::array: + case simdjson::ondemand::json_type::object: { + if (simdjson::to_json_string(val).tie(raw_str, err); err) { + return; + } + break; + } + case simdjson::ondemand::json_type::string: { + if (val.get_string().tie(raw_str, err); err) { + return; + } + break; + } + default: + return; + } + + size_t sz = raw_str.size(); + char* buf = v1::AllocManagedStringBuf(sz); + memcpy(buf, raw_str.data(), sz); + + out->size_ = sz; + out->data_ = buf; + *is_null = false; +} + void DefaultUdfLibrary::InitJsonUdfs() { RegisterExternal("json_array_length") .args(json_array_length) @@ -70,6 +128,39 @@ void DefaultUdfLibrary::InitJsonUdfs() { -- NULL @endcode + @since 0.9.0)"); + + RegisterExternal("get_json_object") + .args(get_json_object) + .doc(R"( + @brief Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901) + + NOTE JSON string is not fully validated. Which means that the function may still returns values even though returned string does not valid for JSON. + It's your responsibility to make sure input string is valid JSON + + @param expr A string expression contains well formed JSON + @param path A string expression of JSON string representation from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901) + + Example: + + @code{.sql} + select get_json_object('{"boo": "baz"}', "/boo") + -- baz + + select get_json_object('{"boo": [1, 2]}', "/boo/0") + -- 1 + + select get_json_object('{"m~n": 1}', "/m~0n") + -- 1 + + select get_json_object('{"m/n": 1}', "/m~1n") + -- 1 + + select get_json_object('{"foo": {"bar": bz}}', "/foo") + -- {"bar": bz} + --- returns value even input JSON is not a valid JSON + @endcode + @since 0.9.0)"); } diff --git a/hybridse/src/udf/literal_traits.h b/hybridse/src/udf/literal_traits.h index 2c3c83bc750..13c876951e8 100644 --- a/hybridse/src/udf/literal_traits.h +++ b/hybridse/src/udf/literal_traits.h @@ -88,9 +88,14 @@ struct Nullable { template <> struct Nullable { Nullable(std::nullptr_t) : data_(nullptr), is_null_(true) {} // NOLINT + Nullable() : is_null_(true) {} Nullable(const StringRef& t) : data_(t), is_null_(false) {} // NOLINT Nullable(const char* buf) : data_(buf), is_null_(false) {} // NOLINT - Nullable() : is_null_(false) {} + +#if __cplusplus >= 201703L + template + Nullable(std::basic_string_view v) : data_(v), is_null_(false) {} // NOLINT +#endif const StringRef& value() const { return data_; } bool is_null() const { return is_null_; } From 8d7094d84d40724834275d9337b4990e0067edde Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Wed, 16 Aug 2023 11:36:14 +0800 Subject: [PATCH 024/111] docs(monitoring): update description (#3436) * docs(monitoring): update * docs: prometheus -> Prometheus --- docs/en/maintain/monitoring.md | 172 +++++++++++++++++++-------------- docs/zh/maintain/monitoring.md | 171 ++++++++++++++++++-------------- 2 files changed, 198 insertions(+), 145 deletions(-) diff --git a/docs/en/maintain/monitoring.md b/docs/en/maintain/monitoring.md index 9369627ddf6..356dd08eb2a 100644 --- a/docs/en/maintain/monitoring.md +++ b/docs/en/maintain/monitoring.md @@ -5,7 +5,7 @@ The monitoring scheme of OpenMLDB is outlined as follows: -- Use [prometheus](https://prometheus.io) to collect monitoring metrics, [grafana](https://grafana.com/oss/grafana/) to visualize metrics +- Use [Prometheus](https://prometheus.io) to collect monitoring metrics, [Grafana](https://grafana.com/oss/grafana/) to visualize metrics - OpenMLDB exporter exposes database-level metrics - Each component as a server itself expose component-level metrics - Uses [node_exporter](https://github.com/prometheus/node_exporter) to expose machine and operating system related metrics @@ -17,7 +17,7 @@ The monitoring scheme of OpenMLDB is outlined as follows: [![PyPI](https://img.shields.io/pypi/v/openmldb-exporter?label=openmldb-exporter)](https://pypi.org/project/openmldb-exporter/) ![PyPI - Python Version](https://img.shields.io/pypi/pyversions/openmldb-exporter?style=flat-square) -The OpenMLDB exporter is a prometheus exporter implemented in Python. The core connects the OpenMLDB instance through the database SDK and will query the exposed monitoring indicators through SQL statements. Exporter publish into PyPI. You can install the latest `openmldb-exporter` through pip. For development instructions, please refer to the code directory [README](https://github.com/4paradigm/OpenMLDB/tree/main/monitoring). +The OpenMLDB exporter is a Prometheus exporter implemented in Python. The core connects the OpenMLDB instance through the database SDK and will query the exposed monitoring indicators through SQL statements. Exporter publish into PyPI. You can install the latest `openmldb-exporter` through pip. For development instructions, please refer to the code directory [README](https://github.com/4paradigm/openmldb-exporter). ### Environmental Requirements @@ -39,94 +39,120 @@ The OpenMLDB exporter is a prometheus exporter implemented in Python. The core c The startup script `bin/start.sh` should enable server status by default. -3. Note: Make sure to select the binding IP addresses of OpenMLDB components OpenMLDB exporter as well as prometheus and grafana to ensure that grafana can access prometheus, and that prometheus, OpenMLDB exporter, and OpenMLDB components can access each other. +3. Note: Make sure to select the binding IP addresses of OpenMLDB components OpenMLDB exporter as well as Prometheus and Grafana to ensure that Grafana can access Prometheus, and that Prometheus, OpenMLDB exporter, and OpenMLDB components can access each other. ### Deploy the OpenMLDB exporter -1. Install openmldb-exporter from PyPI - - ```bash - pip install openmldb-exporter - ``` - -2. Run - - An executable `openmldb-exporter` will be installed by default, make sure pip install path is in your $PATH environment variable. - - ```bash - openmldb-exporter - ``` - - Appropriate parameters are required in order to work, use `openmldb-exporter -h` to see the latest help message, here is a example output: - - ```bash - usage: openmldb-exporter [-h] [--log.level LOG.LEVEL] [--web.listen-address WEB.LISTEN_ADDRESS] - [--web.telemetry-path WEB.TELEMETRY_PATH] [--config.zk_root CONFIG.ZK_ROOT] - [--config.zk_path CONFIG.ZK_PATH] [--config.interval CONFIG.INTERVAL] - - OpenMLDB exporter - - optional arguments: - -h, --help show this help message and exit - --log.level LOG.LEVEL - config log level, default WARN - --web.listen-address WEB.LISTEN_ADDRESS - process listen port, default 8000 - --web.telemetry-path WEB.TELEMETRY_PATH - Path under which to expose metrics, default metrics - --config.zk_root CONFIG.ZK_ROOT - endpoint to zookeeper, default 127.0.0.1:6181 - --config.zk_path CONFIG.ZK_PATH - root path in zookeeper for OpenMLDB, default / - --config.interval CONFIG.INTERVAL - interval in seconds to pull metrics periodically, default 30.0 - - ``` - -3. View the list of metrics - - ```bash - $ curl http://127.0.0.1:8000/metrics - # HELP openmldb_connected_seconds_total duration for a component conncted time in seconds - # TYPE openmldb_connected_seconds_total counter - openmldb_connected_seconds_total{endpoint="172.17.0.15:9520",role="tablet"} 208834.70900011063 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9521",role="tablet"} 208834.70700001717 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9522",role="tablet"} 208834.71399998665 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9622",role="nameserver"} 208833.70000004768 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9623",role="nameserver"} 208831.70900011063 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9624",role="nameserver"} 208829.7230000496 - # HELP openmldb_connected_seconds_created duration for a component conncted time in seconds - # TYPE openmldb_connected_seconds_created gauge - openmldb_connected_seconds_created{endpoint="172.17.0.15:9520",role="tablet"} 1.6501813860467942e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9521",role="tablet"} 1.6501813860495396e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9522",role="tablet"} 1.650181386050323e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9622",role="nameserver"} 1.6501813860512116e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9623",role="nameserver"} 1.650181386051238e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9624",role="nameserver"} 1.6501813860512598e+09 - - ``` +**You can run openmdlb-exporter from docker, or install and run directly from PyPI.** + +
Use docker + +```sh +docker run ghcr.io/4paradigm/openmldb-exporter \ + --config.zk_root= \ + --config.zk_path= +``` + +
+ +
Install and Run from PyPI + +```sh +pip install openmldb-exporter + +# start +openmldb-exporter \ + --config.zk_root= \ + --config.zk_path= +``` +

+ +And replace `` and `` to correct value. Afterwards, you can check metrics with curl: + +```sh +curl http://:8000/metrics +``` +`` is docker container IP, or `127.0.0.1` if installing from PyPI. + +
Example output + +```sh +# HELP openmldb_connected_seconds_total duration for a component conncted time in seconds +# TYPE openmldb_connected_seconds_total counter +openmldb_connected_seconds_total{endpoint="172.17.0.15:9520",role="tablet"} 208834.70900011063 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9521",role="tablet"} 208834.70700001717 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9522",role="tablet"} 208834.71399998665 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9622",role="nameserver"} 208833.70000004768 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9623",role="nameserver"} 208831.70900011063 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9624",role="nameserver"} 208829.7230000496 +# HELP openmldb_connected_seconds_created duration for a component conncted time in seconds +# TYPE openmldb_connected_seconds_created gauge +openmldb_connected_seconds_created{endpoint="172.17.0.15:9520",role="tablet"} 1.6501813860467942e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9521",role="tablet"} 1.6501813860495396e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9522",role="tablet"} 1.650181386050323e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9622",role="nameserver"} 1.6501813860512116e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9623",role="nameserver"} 1.650181386051238e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9624",role="nameserver"} 1.6501813860512598e+09 +``` + +
+ +### Configuration + +You can view the help from: +```sh +openmldb-exporter -h +``` +`--config.zk_root` and `--config.zk_path` are mandatory. + +
Available options + +``` +usage: openmldb-exporter [-h] [--log.level LOG.LEVEL] [--web.listen-address WEB.LISTEN_ADDRESS] + [--web.telemetry-path WEB.TELEMETRY_PATH] [--config.zk_root CONFIG.ZK_ROOT] + [--config.zk_path CONFIG.ZK_PATH] [--config.interval CONFIG.INTERVAL] + +OpenMLDB exporter + +optional arguments: + -h, --help show this help message and exit + --log.level LOG.LEVEL + config log level, default WARN + --web.listen-address WEB.LISTEN_ADDRESS + process listen port, default 8000 + --web.telemetry-path WEB.TELEMETRY_PATH + Path under which to expose metrics, default metrics + --config.zk_root CONFIG.ZK_ROOT + endpoint to zookeeper, default 127.0.0.1:6181 + --config.zk_path CONFIG.ZK_PATH + root path in zookeeper for OpenMLDB, default / + --config.interval CONFIG.INTERVAL + interval in seconds to pull metrics periodically, default 30.0 +``` + +
## Deploy Node Exporter -[node_exporter](https://github.com/prometheus/node_exporter) is an official implementation of prometheus that exposes system metrics, read their README about setup. +[node_exporter](https://github.com/prometheus/node_exporter) is an official implementation of Prometheus that exposes system metrics, read their README about setup. ## Deploy Prometheus and Grafana -For installation and deployment of prometheus and grafana, please refer to the official documents [promtheus get started](https://prometheus.io/docs/prometheus/latest/getting_started/) and [grafana get started](https://grafana.com/docs/ grafana/latest/getting-started/getting-started-prometheus/). We recommend quick start with docker images, and use Grafana >= 8.3 and Prometheus >= 1.0.0 . +For installation and deployment of Prometheus and Grafana, please refer to the official documents [promtheus get started](https://prometheus.io/docs/prometheus/latest/getting_started/) and [Grafana get started](https://grafana.com/docs/ grafana/latest/getting-started/getting-started-prometheus/). We recommend quick start with docker images, and use Grafana >= 8.3 and Prometheus >= 1.0.0 . -OpenMLDB provides prometheus and grafana configuration files for reference, see [OpenMLDB mixin](https://github.com/4paradigm/OpenMLDB/tree/main/monitoring/openmldb_mixin/README.md): +OpenMLDB provides Prometheus and Grafana configuration files for reference, see [OpenMLDB mixin](https://github.com/4paradigm/openmldb-exporter/tree/main/openmldb_mixin): - prometheus_example.yml: Prometheus configuration example, remember to modify the target address in `node`, `openmldb_components` and `openmldb_exporter` jobs for your environment -- openmldb_dashboard.json: grafana dashboard configuration for OpenMLDB metrics, import it two steps: - 1. Under the grafana data source page, add the started prometheus server address as the data source +- openmldb_dashboard.json: Grafana dashboard configuration for OpenMLDB metrics, import it two steps: + 1. Under the Grafana data source page, add the started Prometheus server address as the data source 2. Under the dashboard browsing page, click the `Import` button, paste the dashboard ID `17843`, or upload this json file directly - Rad more in [Grafana import dashboard](https://grafana.com/docs/grafana/latest/dashboards/manage-dashboards/#import-a-dashboard) - - Page in grafana dashboard: https://grafana.com/grafana/dashboards/17843 + - Page in Grafana dashboard: https://grafana.com/grafana/dashboards/17843 ## Understand Existing Monitoring Metrics -Taking the OpenMLDB cluster system as an example, there are two type of metrics categorized by prometheus pull jobs: +Taking the OpenMLDB cluster system as an example, there are two type of metrics categorized by Prometheus pull jobs: ### 1. DB-Level metrics @@ -161,7 +187,7 @@ Exposed through the OpenMLDB exporter, the `job_name=openmldb_exporter` entry in ### 2. Component-Level metrics -The related components of OpenMLDB (nameserver, tablet, etc), themselves as BRPC server, and expose [prometheus related metrics](https://github.com/apache/incubator-brpc/blob/master/docs/en/bvar .md#export-to-prometheus), you only need to configure the prometheus server to pull metrics from the corresponding address. It corresponds to the `job_name=openmldb_components` item in `prometheus_example.yml`: +The related components of OpenMLDB (nameserver, tablet, etc), themselves as BRPC server, and expose [prometheus related metrics](https://github.com/apache/incubator-brpc/blob/master/docs/en/bvar .md#export-to-prometheus), you only need to configure the Prometheus server to pull metrics from the corresponding address. It corresponds to the `job_name=openmldb_components` item in `prometheus_example.yml`: ```yaml - job_name: openmldb_components diff --git a/docs/zh/maintain/monitoring.md b/docs/zh/maintain/monitoring.md index 6d993d65053..905644c74df 100644 --- a/docs/zh/maintain/monitoring.md +++ b/docs/zh/maintain/monitoring.md @@ -4,7 +4,7 @@ OpenMLDB 的监控方案概述如下: -- 使用 [prometheus](https://prometheus.io) 收集监控指标,[grafana](https://grafana.com/oss/grafana/) 可视化指标 +- 使用 [Prometheus](https://prometheus.io) 收集监控指标,[Grafana](https://grafana.com/oss/grafana/) 可视化指标 - OpenMLDB exporter 暴露数据库级别的监控指标 - 每个组件作为独立的 server 暴露组件级别的监控指标 - 使用 [node_exporter](https://github.com/prometheus/node_exporter) 暴露机器和操作系统相关指标 @@ -16,7 +16,7 @@ OpenMLDB 的监控方案概述如下: [![PyPI](https://img.shields.io/pypi/v/openmldb-exporter?label=openmldb-exporter)](https://pypi.org/project/openmldb-exporter/) ![PyPI - Python Version](https://img.shields.io/pypi/pyversions/openmldb-exporter?style=flat-square) -OpenMLDB exporter 是以 Python 实现的 prometheus exporter,核心是通过数据库 SDK 连接 OpenMLDB 实例并通过 SQL 语句查询暴露监控指标。Exporter 会发布到 PyPI,可以通过 pip 安装最新发布的 `openmldb-exporter`,开发使用说明详见代码目录 [README](https://github.com/4paradigm/OpenMLDB/tree/main/monitoring)。 +OpenMLDB exporter 是以 Python 实现的 Prometheus exporter,核心是通过数据库 SDK 连接 OpenMLDB 实例并通过 SQL 语句查询暴露监控指标。Exporter 会发布到 PyPI,可以通过 pip 安装最新发布的 `openmldb-exporter`,开发使用说明详见代码目录 [README](https://github.com/4paradigm/openmldb-exporter)。 ### 环境要求 @@ -35,94 +35,121 @@ OpenMLDB exporter 是以 Python 实现的 prometheus exporter,核心是通过 默认启动脚本 `bin/start.sh` 开启了 server status, 不需要额外配置。 -3. 注意:合理选择 OpenMLDB 各组件和 OpenMLDB exporter, 以及 prometheus, grafana 的绑定 IP 地址,确保 grafana 可以访问到 prometheus, 并且 prometheus,OpenMLDB exporter 和 OpenMLDB 各个组件之间可以相互访问。 +3. 注意:合理选择 OpenMLDB 各组件和 OpenMLDB exporter, 以及 Prometheus, Grafana 的绑定 IP 地址,确保 Grafana 可以访问到 Prometheus, 并且 Prometheus,OpenMLDB exporter 和 OpenMLDB 各个组件之间可以相互访问。 ### 部署 OpenMLDB exporter -1. 从 PyPI 安装 openmldb-exporter +使用 Docker 或者 Pip 安装运行 openmdlb-exporter + +
Docker + +```sh +docker run ghcr.io/4paradigm/openmldb-exporter \ + --config.zk_root= \ + --config.zk_path= +``` + +
+ +
Pip + +```sh +pip install openmldb-exporter + +# start +openmldb-exporter \ + --config.zk_root= \ + --config.zk_path= +``` +

+ +注意将 `` and `` 替换成正确的值. 成功后就可以用 curl 查询状态: + +```sh +curl http://:8000/metrics +``` +`` 是容器的 IP, 如果从 pip 安装运行则是本机 IP. + +
样例输出 + +```sh +# HELP openmldb_connected_seconds_total duration for a component conncted time in seconds +# TYPE openmldb_connected_seconds_total counter +openmldb_connected_seconds_total{endpoint="172.17.0.15:9520",role="tablet"} 208834.70900011063 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9521",role="tablet"} 208834.70700001717 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9522",role="tablet"} 208834.71399998665 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9622",role="nameserver"} 208833.70000004768 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9623",role="nameserver"} 208831.70900011063 +openmldb_connected_seconds_total{endpoint="172.17.0.15:9624",role="nameserver"} 208829.7230000496 +# HELP openmldb_connected_seconds_created duration for a component conncted time in seconds +# TYPE openmldb_connected_seconds_created gauge +openmldb_connected_seconds_created{endpoint="172.17.0.15:9520",role="tablet"} 1.6501813860467942e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9521",role="tablet"} 1.6501813860495396e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9522",role="tablet"} 1.650181386050323e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9622",role="nameserver"} 1.6501813860512116e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9623",role="nameserver"} 1.650181386051238e+09 +openmldb_connected_seconds_created{endpoint="172.17.0.15:9624",role="nameserver"} 1.6501813860512598e+09 +``` + +
+ +### OpenMLDB exporter 配置 + +查看帮助信息: +```sh +openmldb-exporter -h +``` +`--config.zk_root` 和 `--config.zk_path` 是必须的. + +
所有选项 + +``` +usage: openmldb-exporter [-h] [--log.level LOG.LEVEL] [--web.listen-address WEB.LISTEN_ADDRESS] + [--web.telemetry-path WEB.TELEMETRY_PATH] [--config.zk_root CONFIG.ZK_ROOT] + [--config.zk_path CONFIG.ZK_PATH] [--config.interval CONFIG.INTERVAL] + +OpenMLDB exporter + +optional arguments: + -h, --help show this help message and exit + --log.level LOG.LEVEL + config log level, default WARN + --web.listen-address WEB.LISTEN_ADDRESS + process listen port, default 8000 + --web.telemetry-path WEB.TELEMETRY_PATH + Path under which to expose metrics, default metrics + --config.zk_root CONFIG.ZK_ROOT + endpoint to zookeeper, default 127.0.0.1:6181 + --config.zk_path CONFIG.ZK_PATH + root path in zookeeper for OpenMLDB, default / + --config.interval CONFIG.INTERVAL + interval in seconds to pull metrics periodically, default 30.0 +``` + +
- ```bash - pip install openmldb-exporter - ``` - -2. 运行 - - 默认会安装一个可执行文件 `openmldb-exporter`, 确认 pip 安装路径在你的 $PATH 环境变量里面。 - - ```bash - openmldb-exporter - ``` - - 注意传入合适的参数,`openmldb-exporter -h` 查看 help: - - ```bash - usage: openmldb-exporter [-h] [--log.level LOG.LEVEL] [--web.listen-address WEB.LISTEN_ADDRESS] - [--web.telemetry-path WEB.TELEMETRY_PATH] [--config.zk_root CONFIG.ZK_ROOT] - [--config.zk_path CONFIG.ZK_PATH] [--config.interval CONFIG.INTERVAL] - - OpenMLDB exporter - - optional arguments: - -h, --help show this help message and exit - --log.level LOG.LEVEL - config log level, default WARN - --web.listen-address WEB.LISTEN_ADDRESS - process listen port, default 8000 - --web.telemetry-path WEB.TELEMETRY_PATH - Path under which to expose metrics, default metrics - --config.zk_root CONFIG.ZK_ROOT - endpoint to zookeeper, default 127.0.0.1:6181 - --config.zk_path CONFIG.ZK_PATH - root path in zookeeper for OpenMLDB, default / - --config.interval CONFIG.INTERVAL - interval in seconds to pull metrics periodically, default 30.0 - - ``` - -3. 查看 metrics 列表 - - ```bash - $ curl http://127.0.0.1:8000/metrics - # HELP openmldb_connected_seconds_total duration for a component conncted time in seconds - # TYPE openmldb_connected_seconds_total counter - openmldb_connected_seconds_total{endpoint="172.17.0.15:9520",role="tablet"} 208834.70900011063 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9521",role="tablet"} 208834.70700001717 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9522",role="tablet"} 208834.71399998665 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9622",role="nameserver"} 208833.70000004768 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9623",role="nameserver"} 208831.70900011063 - openmldb_connected_seconds_total{endpoint="172.17.0.15:9624",role="nameserver"} 208829.7230000496 - # HELP openmldb_connected_seconds_created duration for a component conncted time in seconds - # TYPE openmldb_connected_seconds_created gauge - openmldb_connected_seconds_created{endpoint="172.17.0.15:9520",role="tablet"} 1.6501813860467942e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9521",role="tablet"} 1.6501813860495396e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9522",role="tablet"} 1.650181386050323e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9622",role="nameserver"} 1.6501813860512116e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9623",role="nameserver"} 1.650181386051238e+09 - openmldb_connected_seconds_created{endpoint="172.17.0.15:9624",role="nameserver"} 1.6501813860512598e+09 - - ``` ## 部署 node exporter -[node_exporter](https://github.com/prometheus/node_exporter) 是 prometheus 官方实现的暴露系统指标的组件。 安装使用详见它的 README。 +[node_exporter](https://github.com/prometheus/node_exporter) 是 Prometheus 官方实现的暴露系统指标的组件。 安装使用详见它的 README。 ## 部署 Prometheus 和 Grafana -如何安装部署 prometheus, grafana 详见官方文档 [promtheus get started](https://prometheus.io/docs/prometheus/latest/getting_started/) 和 [grafana get started](https://grafana.com/docs/grafana/latest/getting-started/getting-started-prometheus/) 。我们建议使用 Docker 容器快速部署, 并且 Grafana >= 8.3, Prometheus >= 1.0.0 。 +如何安装部署 Prometheus, Grafana 详见官方文档 [promtheus get started](https://prometheus.io/docs/prometheus/latest/getting_started/) 和 [Grafana get started](https://grafana.com/docs/grafana/latest/getting-started/getting-started-prometheus/) 。我们建议使用 Docker 容器快速部署, 并且 Grafana >= 8.3, Prometheus >= 1.0.0 。 -OpenMLDB 提供了 prometheus 和 grafana 配置文件以作参考,详见 [OpenMLDB mixin](https://github.com/4paradigm/OpenMLDB/tree/main/monitoring/openmldb_mixin/README.md): +OpenMLDB 提供了 Prometheus 和 Grafana 配置文件以作参考,详见 [OpenMLDB mixin](https://github.com/4paradigm/openmldb-exporter/tree/main/openmldb_mixin): -- prometheus_example.yml: prometheus 配置示例, 注意修改 `node`, `openmldb_components` 和 `openmldb_exporter` job 中的 target 地址 -- openmldb_dashboard.json: OpenMLDB metrics 的 grafana dashboard 配置, 分为两步: - 1. 在 grafana data source 页面下,添加启动的 prometheus server 地址作为数据源 +- prometheus_example.yml: Prometheus 配置示例, 注意修改 `node`, `openmldb_components` 和 `openmldb_exporter` job 中的 target 地址 +- openmldb_dashboard.json: OpenMLDB metrics 的 Grafana dashboard 配置, 分为两步: + 1. 在 Grafana data source 页面下,添加启动的 Prometheus server 地址作为数据源 2. 在 dashboard 浏览页面下,点击导入一个 dashboard, 输入 dashboard ID `17843`, 或者直接上传该 json 配置文件 - 导入详细说明见 [Grafana import dashboard](https://grafana.com/docs/grafana/latest/dashboards/manage-dashboards/#import-a-dashboard) - Grafana dashboard 配置见 https://grafana.com/grafana/dashboards/17843 ## 理解现有的监控指标 -以 OpenMLDB 集群系统为例,监控指标根据 prometheus pull job 不同,分为两类: +以 OpenMLDB 集群系统为例,监控指标根据 Prometheus pull job 不同,分为两类: ### 1. DB-Level 指标 @@ -159,7 +186,7 @@ OpenMLDB 提供了 prometheus 和 grafana 配置文件以作参考,详见 [Ope ### 2. Component-Level 指标 -OpenMLDB 的相关组件(即 nameserver, tablet, etc), 本身作为 BRPC server,暴露了 [prometheus 相关指标](https://github.com/apache/incubator-brpc/blob/master/docs/en/bvar.md#export-to-prometheus), 只需要配置 prometheus server 从对应地址拉取指标即可。对应 `prometheus_example.yml`中 `job_name=openmldb_components` 项: +OpenMLDB 的相关组件(即 nameserver, tablet, etc), 本身作为 BRPC server,暴露了 [Prometheus 相关指标](https://github.com/apache/incubator-brpc/blob/master/docs/en/bvar.md#export-to-prometheus), 只需要配置 Prometheus server 从对应地址拉取指标即可。对应 `prometheus_example.yml`中 `job_name=openmldb_components` 项: ```yaml - job_name: openmldb_components From fd728c68abc496adb83aea40393f0ced8c891537 Mon Sep 17 00:00:00 2001 From: "qiyuan.liu" <1043276694@qq.com> Date: Thu, 17 Aug 2023 15:53:55 +0800 Subject: [PATCH 025/111] ci: add selfhost muliti-machine integration test (#3283) --- .github/workflows/selfhost_intergration.yml | 396 ++++++++++++++++++ cases/integration_test/ddl/test_options.yaml | 4 +- .../expression/test_condition.yaml | 45 +- .../expression/test_like.yaml | 2 +- .../long_window/test_long_window.yaml | 2 + .../openmldb-sdk-test/pom.xml | 4 +- .../java_sdk_test/common/OpenMLDBConfig.java | 3 +- .../java_sdk_test/common/OpenMLDBTest.java | 2 +- .../yarn/TestExternalFunction.java | 2 +- .../openmldb-test-common/pom.xml | 2 +- test/steps/format_config.sh | 126 ++++++ .../openmldb-deploy/cases/test_upgrade.py | 4 +- 12 files changed, 575 insertions(+), 17 deletions(-) create mode 100644 .github/workflows/selfhost_intergration.yml create mode 100755 test/steps/format_config.sh diff --git a/.github/workflows/selfhost_intergration.yml b/.github/workflows/selfhost_intergration.yml new file mode 100644 index 00000000000..dcaf34cce8d --- /dev/null +++ b/.github/workflows/selfhost_intergration.yml @@ -0,0 +1,396 @@ +name: SELFHOST-INTEGRATION-TEST +on: + + schedule: + - cron: '0 14 * * *' + + workflow_dispatch: + inputs: + EXEC_TEST_TYPE: + description: 'Which tests need to be executed? The options are all, python, java, batch, cli, standalone-cli, apiserver, yarn' + required: true + default: 'all' + EXEC_VERSION: + description: 'Which version needs to be tested?' + required: true + default: 'main' +env: + GIT_SUBMODULE_STRATEGY: recursive + HYBRIDSE_SOURCE: local + E_VERSION: ${{ github.event.inputs.EXEC_VERSION || 'main'}} + ETYPE: ${{ github.event.inputs.EXEC_TEST_TYPE || 'all'}} + +jobs: + build-openmldb: + + runs-on: [self-hosted,generic] + if: github.repository == '4paradigm/OpenMLDB' + container: + image: ghcr.io/4paradigm/hybridsql:latest + env: + OS: linux + steps: + - uses: actions/checkout@v2 + - name: build + if: ${{ env.E_VERSION == 'main' }} + run: | + make configure CMAKE_INSTALL_PREFIX=openmldb-linux + make SQL_JAVASDK_ENABLE=ON && make SQL_JAVASDK_ENABLE=ON install + mv openmldb-linux openmldb-main-linux + tar -zcf openmldb-linux.tar.gz openmldb-main-linux + - name: download + if: ${{ env.E_VERSION != 'main' }} + run: | + curl -SLO https://github.com/4paradigm/OpenMLDB/releases/download/v${{ env.E_VERSION }}/openmldb-${{ env.E_VERSION }}-linux.tar.gz + tar -zxf openmldb-${{ env.E_VERSION }}-linux.tar.gz + mv openmldb-${{ env.E_VERSION }}-linux.tar.gz openmldb-linux.tar.gz + - name: upload artifact + uses: actions/upload-artifact@v3 + with: + name: openmldb-package + path: openmldb-linux.tar.gz + + + + java-sdk-cluster-memory-0: + needs: build-openmldb + + runs-on: [self-hosted,common-user] + steps: + - uses: actions/checkout@v3 + - name: before test + if: ${{ env.ETYPE == 'all' || env.ETYPE == 'java' }} + run: mkdir ${{ github.job }} + - name: download artifact + uses: actions/download-artifact@v3 + with: + name: openmldb-package + - name: install openmldb + run: | + tar -zxf openmldb-linux.tar.gz -C ${{ github.job }}/ + bash test/steps/format_config.sh $(pwd)/${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux ${{ github.job }} 20001 21000 java + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/deploy-all.sh + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/start-all.sh + - name: test + run: | + mkdir mvnrepo + export MAVEN_OPTS="-Dmaven.repo.local=$(pwd)/mvnrepo" + echo $MAVEN_OPTS + bash test/steps/openmldb-sdk-test-java-src.sh -c test_cluster.xml -d deploy -l "0" -s "memory" + - name: stop openmldb + if: always() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/stop-all.sh + - name: remove openmldb + if: success() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/clear-all.sh + - name: TEST Results + if: always() + uses: EnricoMi/publish-unit-test-result-action@v1 + with: + files: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/TEST-*.xml + check_name: "SRC java-sdk-cluster-memory-0 Report" + comment_title: "SRC java-sdk-cluster-memory-0 Report" + - name: tar test report + if: ${{ failure() }} + run: tar -zcvf surefire-reports.tar.gz test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports + - name: Send Email + if: ${{ failure() }} + uses: dawidd6/action-send-mail@master + with: + server_address: smtp.partner.outlook.cn + server_port: 587 + username: ${{ secrets.MAIL_USERNAME }} + password: ${{ secrets.MAIL_PASSWORD }} + subject: OpenMLDB Memory Test + body: OpenMLDB Memory Test Failed + html_body: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/html/overview.html + to: ${{ secrets.MAIL_TO }} + from: GitHub Actions + attachments: surefire-reports.tar.gz + + + + java-sdk-cluster-memory-1: + needs: build-openmldb + runs-on: [self-hosted,common-user] + steps: + - uses: actions/checkout@v3 + - name: before test + if: ${{ env.ETYPE == 'all' || env.ETYPE == 'java' }} + run: mkdir ${{ github.job }} + - name: download artifact + uses: actions/download-artifact@v3 + with: + name: openmldb-package + - name: install openmldb + run: | + tar -zxf openmldb-linux.tar.gz -C ${{ github.job }}/ + bash test/steps/format_config.sh $(pwd)/${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux ${{ github.job }} 21001 22000 java + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/deploy-all.sh + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/start-all.sh + - name: test + run: | + mkdir mvnrepo + export MAVEN_OPTS="-Dmaven.repo.local=$(pwd)/mvnrepo" + echo $MAVEN_OPTS + bash test/steps/openmldb-sdk-test-java-src.sh -c test_cluster.xml -d deploy -l "1,2,3,4,5" -s "memory" + - name: stop openmldb + if: always() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/stop-all.sh + - name: remove openmldb + if: success() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/clear-all.sh + - name: TEST Results + if: always() + uses: EnricoMi/publish-unit-test-result-action@v1 + with: + files: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/TEST-*.xml + check_name: "SRC java-sdk-cluster-memory-1 Report" + comment_title: "SRC java-sdk-cluster-memory-1 Report" + - name: tar test report + if: ${{ failure() }} + run: tar -zcvf surefire-reports.tar.gz test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports + - name: Send Email + if: ${{ failure() }} + uses: dawidd6/action-send-mail@master + with: + server_address: smtp.partner.outlook.cn + server_port: 587 + username: ${{ secrets.MAIL_USERNAME }} + password: ${{ secrets.MAIL_PASSWORD }} + subject: OpenMLDB Memory Test + body: OpenMLDB Memory Test Failed + html_body: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/html/overview.html + to: ${{ secrets.MAIL_TO }} + from: GitHub Actions + attachments: surefire-reports.tar.gz + + + + + java-sdk-cluster-hdd: + needs: build-openmldb + runs-on: [self-hosted,common-user] + steps: + - uses: actions/checkout@v3 + - name: before test + if: ${{ env.ETYPE == 'all' || env.ETYPE == 'java' }} + run: mkdir ${{ github.job }} + - name: download artifact + uses: actions/download-artifact@v3 + with: + name: openmldb-package + - name: install openmldb + run: | + tar -zxf openmldb-linux.tar.gz -C ${{ github.job }}/ + bash test/steps/format_config.sh $(pwd)/${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux ${{ github.job }} 22001 23000 java + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/deploy-all.sh + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/start-all.sh + - name: test + run: | + mkdir mvnrepo + export MAVEN_OPTS="-Dmaven.repo.local=$(pwd)/mvnrepo" + echo $MAVEN_OPTS + bash test/steps/openmldb-sdk-test-java-src.sh -c test_cluster_disk.xml -d deploy -l "0" -s "hdd" + - name: stop openmldb + if: always() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/stop-all.sh + - name: remove openmldb + if: success() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/clear-all.sh + - name: TEST Results + if: always() + uses: EnricoMi/publish-unit-test-result-action@v1 + with: + files: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/TEST-*.xml + check_name: "SRC java-sdk-cluster-hdd Report" + comment_title: "SRC java-sdk-cluster-hdd Report" + - name: tar test report + if: ${{ failure() }} + run: tar -zcvf surefire-reports.tar.gz test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports + - name: Send Email + if: ${{ failure() }} + uses: dawidd6/action-send-mail@master + with: + server_address: smtp.partner.outlook.cn + server_port: 587 + username: ${{ secrets.MAIL_USERNAME }} + password: ${{ secrets.MAIL_PASSWORD }} + subject: OpenMLDB HDD Test + body: OpenMLDB HDD Test Failed + html_body: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/html/overview.html + to: ${{ secrets.MAIL_TO }} + from: GitHub Actions + attachments: surefire-reports.tar.gz + + + + java-sdk-cluster-ssd: + needs: build-openmldb + runs-on: [self-hosted,common-user] + steps: + - uses: actions/checkout@v3 + - name: before test + if: ${{ env.ETYPE == 'all' || env.ETYPE == 'java' }} + run: mkdir ${{ github.job }} + - name: download artifact + uses: actions/download-artifact@v3 + with: + name: openmldb-package + - name: install openmldb + run: | + tar -zxf openmldb-linux.tar.gz -C ${{ github.job }}/ + bash test/steps/format_config.sh $(pwd)/${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux java-sdk-cluster-memory-0 23001 24000 java ssd + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/deploy-all.sh + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/start-all.sh + - name: test + run: | + mkdir mvnrepo + export MAVEN_OPTS="-Dmaven.repo.local=$(pwd)/mvnrepo" + echo $MAVEN_OPTS + bash test/steps/openmldb-sdk-test-java-src.sh -c test_cluster_disk.xml -d deploy -l "0" -s "ssd" + - name: stop openmldb + if: always() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/stop-all.sh + - name: remove openmldb + if: success() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/clear-all.sh + - name: TEST Results + if: always() + uses: EnricoMi/publish-unit-test-result-action@v1 + with: + files: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/TEST-*.xml + check_name: "SRC java-sdk-cluster-ssd Report" + comment_title: "SRC java-sdk-cluster-ssd Report" + - name: tar test report + if: ${{ failure() }} + run: tar -zcvf surefire-reports.tar.gz test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports + - name: Send Email + if: ${{ failure() }} + uses: dawidd6/action-send-mail@master + with: + server_address: smtp.partner.outlook.cn + server_port: 587 + username: ${{ secrets.MAIL_USERNAME }} + password: ${{ secrets.MAIL_PASSWORD }} + subject: OpenMLDB SSD Test + body: OpenMLDB SSD Test Failed + html_body: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/html/overview.html + to: ${{ secrets.MAIL_TO }} + from: GitHub Actions + attachments: surefire-reports.tar.gz + + + java-sdk-yarn: + needs: build-openmldb + runs-on: [self-hosted,common-user] + steps: + - uses: actions/checkout@v3 + - name: before test + if: ${{ env.ETYPE == 'all' || env.ETYPE == 'java' }} + run: mkdir ${{ github.job }} + - name: download artifact + uses: actions/download-artifact@v3 + with: + name: openmldb-package + - name: install openmldb + run: | + tar -zxf openmldb-linux.tar.gz -C ${{ github.job }}/ + bash test/steps/format_config.sh $(pwd)/${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux ${{ github.job }} 24001 25000 java hadoop + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/deploy-all.sh + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/start-all.sh + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/stop-taskmanager.sh + bash HADOOP_CONF_DIR=/mnt/hdd0/denglong/openmldb_runner_work/hadoop ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/stop-taskmanager.sh + - name: test + run: | + mkdir mvnrepo + export MAVEN_OPTS="-Dmaven.repo.local=$(pwd)/mvnrepo" + echo $MAVEN_OPTS + bash test/steps/openmldb-sdk-test-java-src.sh -c test_yarn.xml -d deploy -l "0" -s "memory" + - name: stop openmldb + if: always() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/stop-all.sh + - name: remove openmldb + if: success() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/clear-all.sh + - name: TEST Results + if: always() + uses: EnricoMi/publish-unit-test-result-action@v1 + with: + files: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/TEST-*.xml + check_name: "SRC java-sdk-yarn Report" + comment_title: "SRC java-yarn Report" + - name: tar test report + if: ${{ failure() }} + run: tar -zcvf surefire-reports.tar.gz test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports + - name: Send Email + if: ${{ failure() }} + uses: dawidd6/action-send-mail@master + with: + server_address: smtp.partner.outlook.cn + server_port: 587 + username: ${{ secrets.MAIL_USERNAME }} + password: ${{ secrets.MAIL_PASSWORD }} + subject: OpenMLDB yarn Test + body: OpenMLDB yarn Test Failed + html_body: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/html/overview.html + to: ${{ secrets.MAIL_TO }} + from: GitHub Actions + attachments: surefire-reports.tar.gz + + + + java-sdk-kafka: + needs: build-openmldb + runs-on: [self-hosted,common-user] + steps: + - uses: actions/checkout@v3 + - name: before test + if: ${{ env.ETYPE == 'all' || env.ETYPE == 'java' }} + run: mkdir ${{ github.job }} + - name: download artifact + uses: actions/download-artifact@v3 + with: + name: openmldb-package + - name: install openmldb + run: | + tar -zxf openmldb-linux.tar.gz -C ${{ github.job }}/ + bash test/steps/format_config.sh $(pwd)/${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux ${{ github.job }} 25001 26000 java kafka + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/deploy-all.sh + bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/start-all.sh + - name: test + run: | + mkdir mvnrepo + export MAVEN_OPTS="-Dmaven.repo.local=$(pwd)/mvnrepo" + echo $MAVEN_OPTS + - name: stop openmldb + if: always() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/stop-all.sh + - name: remove openmldb + if: success() + run: bash ${{ github.job }}/openmldb-${{ env.E_VERSION }}-linux/sbin/clear-all.sh + # - name: TEST Results + # if: always() + # uses: EnricoMi/publish-unit-test-result-action@v1 + # with: + # files: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/TEST-*.xml + # check_name: "SRC java-sdk-yarn Report" + # comment_title: "SRC java-yarn Report" + # - name: tar test report + # if: ${{ failure() }} + # run: tar -zcvf surefire-reports.tar.gz test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports + # - name: Send Email + # if: ${{ failure() }} + # uses: dawidd6/action-send-mail@master + # with: + # server_address: smtp.partner.outlook.cn + # server_port: 587 + # username: ${{ secrets.MAIL_USERNAME }} + # password: ${{ secrets.MAIL_PASSWORD }} + # subject: OpenMLDB yarn Test + # body: OpenMLDB yarn Test Failed + # html_body: test/integration-test/openmldb-test-java/openmldb-sdk-test/target/surefire-reports/html/overview.html + # to: ${{ secrets.MAIL_TO }} + # from: GitHub Actions + # content_type: text/plain + # attachments: surefire-reports.tar.gz diff --git a/cases/integration_test/ddl/test_options.yaml b/cases/integration_test/ddl/test_options.yaml index d35fb6bec31..29511b8fe30 100644 --- a/cases/integration_test/ddl/test_options.yaml +++ b/cases/integration_test/ddl/test_options.yaml @@ -358,7 +358,7 @@ cases: - id: 22 desc: test-case - mode: standalone-unsupport + mode: standalone-unsupport,disk-unsupport inputs: - columns : ["c1 string","c2 smallint","c3 int","c4 bigint","c5 float","c6 double","c7 timestamp","c8 date","c9 bool"] @@ -397,7 +397,7 @@ cases: - id: 24 desc: 没有partitionnum和replicanum,指定distribution - mode: standalone-unsupport + mode: standalone-unsupport,disk-unsupport inputs: - name: t3 sql: | diff --git a/cases/integration_test/expression/test_condition.yaml b/cases/integration_test/expression/test_condition.yaml index 54d1dd4ad4d..b63ecdf67c6 100644 --- a/cases/integration_test/expression/test_condition.yaml +++ b/cases/integration_test/expression/test_condition.yaml @@ -252,7 +252,12 @@ cases: sql: | select col1,ifnull(col2,"abc") as e1 from {0}; expect: - success: false + columns: ["col1 int", "e1 string"] + order: col1 + rows: + - [1, '0'] + - [2, 'abc'] + - [3, '1'] - id: 10 desc: IFNULL-表达式 sqlDialect: ["HybridSQL"] @@ -285,7 +290,12 @@ cases: sql: | select col1,ifnull(col2 /0 ,100) as e3 from {0}; expect: - success: false + columns: ["col1 int", "e3 double"] + order: col1 + rows: + - [1, 100] + - [2, 100] + - [3, 100] - id: 11-2 mode: cli-unsupport desc: NVL is synonyms to ifnull @@ -317,7 +327,12 @@ cases: sql: | select col1,nvl(col2 /0 ,100) as e3 from {0}; expect: - success: false + columns: ["col1 int", "e3 double"] + order: col1 + rows: + - [1, 100] + - [2, 100] + - [3, 100] - id: 12 desc: IFNULL-兼容类型 sqlDialect: ["HybridSQL"] @@ -331,7 +346,13 @@ cases: sql: | select col1,ifnull(col2,100) as e1 from {0}; expect: - success: false + columns: ["col1 int", "e1 bigint"] + order: col1 + rows: + - [1, 0] + - [2, 100] + - [3, 1] + - id: 13 desc: IFNULL-浮点型 sqlDialect: ["HybridSQL"] @@ -345,7 +366,13 @@ cases: sql: | select col1,ifnull(col2,1.1) as e2 from {0}; expect: - success: false + columns: ["col1 int", "e2 double"] + order: col1 + rows: + - [1, 0] + - [2, 1.1] + - [3, 1] + - id: NVL2-1 desc: NVL2 @@ -378,7 +405,13 @@ cases: sql: | select col1,nvl2(col2, "abc", col1 + 1) as e1 from {0}; expect: - success: false + columns: ["col1 int", "e1 string"] + order: col1 + rows: + - [1, 'abc'] + - [2, '3'] + - [3, 'abc'] + - id: NVL2-3 desc: NVL2, sub expression diff --git a/cases/integration_test/expression/test_like.yaml b/cases/integration_test/expression/test_like.yaml index d47bb57b616..7f0d47daf5f 100644 --- a/cases/integration_test/expression/test_like.yaml +++ b/cases/integration_test/expression/test_like.yaml @@ -496,7 +496,7 @@ cases: columns : ["id bigint","c1 string","c7 timestamp"] indexs: ["index1:id:c7"] rows: - - [1,'\\\%a_b',1590738990000] + - [1,'\\%a_b',1590738990000] - [2,'\\\aabb',1590738991000] - [3,"_a%_b",1590738992000] - [4,"ba_c",1590738993000] diff --git a/cases/integration_test/long_window/test_long_window.yaml b/cases/integration_test/long_window/test_long_window.yaml index 95a5b6f2594..4f49cb0736b 100644 --- a/cases/integration_test/long_window/test_long_window.yaml +++ b/cases/integration_test/long_window/test_long_window.yaml @@ -322,6 +322,7 @@ cases: id: 10 version: 0.6.1 desc: delete pk + mode: cluster-unsupport longWindow: w1:2s inputs: - @@ -359,6 +360,7 @@ cases: id: 11 version: 0.6.1 desc: delete 组合索引 + mode: cluster-unsupport longWindow: w1:2s inputs: - diff --git a/test/integration-test/openmldb-test-java/openmldb-sdk-test/pom.xml b/test/integration-test/openmldb-test-java/openmldb-sdk-test/pom.xml index b5839033256..32c81920daa 100644 --- a/test/integration-test/openmldb-test-java/openmldb-sdk-test/pom.xml +++ b/test/integration-test/openmldb-test-java/openmldb-sdk-test/pom.xml @@ -15,8 +15,8 @@ 8 8 UTF-8 - 0.7.0 - 0.7.0-allinone + 0.7.0-SNAPSHOT + 0.7.0-SNAPSHOT 2.2.0 test_suite/test_tmp.xml 1.8.9 diff --git a/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/main/java/com/_4paradigm/openmldb/java_sdk_test/common/OpenMLDBConfig.java b/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/main/java/com/_4paradigm/openmldb/java_sdk_test/common/OpenMLDBConfig.java index 2cdcd096c0a..03f413b71dd 100644 --- a/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/main/java/com/_4paradigm/openmldb/java_sdk_test/common/OpenMLDBConfig.java +++ b/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/main/java/com/_4paradigm/openmldb/java_sdk_test/common/OpenMLDBConfig.java @@ -72,7 +72,8 @@ public class OpenMLDBConfig { } public static boolean isCluster() { - return OpenMLDBGlobalVar.env.equals("cluster"); + + return OpenMLDBGlobalVar.env.equals("cluster")||OpenMLDBGlobalVar.env.equals("deploy"); } } diff --git a/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/main/java/com/_4paradigm/openmldb/java_sdk_test/common/OpenMLDBTest.java b/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/main/java/com/_4paradigm/openmldb/java_sdk_test/common/OpenMLDBTest.java index 09e3e895543..3e39ddbb0a0 100644 --- a/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/main/java/com/_4paradigm/openmldb/java_sdk_test/common/OpenMLDBTest.java +++ b/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/main/java/com/_4paradigm/openmldb/java_sdk_test/common/OpenMLDBTest.java @@ -61,7 +61,7 @@ public void beforeTest(@Optional("qa") String env,@Optional("main") String versi openMLDBDeploy.setCluster(false); OpenMLDBGlobalVar.mainInfo = openMLDBDeploy.deployCluster(2, 3); }else if(env.equalsIgnoreCase("deploy")){ - OpenMLDBGlobalVar.mainInfo = YamlUtil.getObject("out/openmldb_info.yaml",OpenMLDBInfo.class); + OpenMLDBGlobalVar.mainInfo = YamlUtil.getObject(Tool.openMLDBDir().getAbsolutePath()+"/out/openmldb_info.yaml",OpenMLDBInfo.class); } else if(env.equalsIgnoreCase("yarn")) { OpenMLDBDeploy openMLDBDeploy = new OpenMLDBDeploy(version); openMLDBDeploy.setOpenMLDBPath(openMLDBPath); diff --git a/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/test/java/com/_4paradigm/openmldb/java_sdk_test/yarn/TestExternalFunction.java b/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/test/java/com/_4paradigm/openmldb/java_sdk_test/yarn/TestExternalFunction.java index 104552c08c1..bd1bd229e53 100644 --- a/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/test/java/com/_4paradigm/openmldb/java_sdk_test/yarn/TestExternalFunction.java +++ b/test/integration-test/openmldb-test-java/openmldb-sdk-test/src/test/java/com/_4paradigm/openmldb/java_sdk_test/yarn/TestExternalFunction.java @@ -31,7 +31,7 @@ public class TestExternalFunction extends OpenMLDBTest { @Story("ExternalFunction") - @Test(enabled = true) + @Test(enabled = false) public void testFunctionMethods() { Statement statement = executor.getStatement(); diff --git a/test/integration-test/openmldb-test-java/openmldb-test-common/pom.xml b/test/integration-test/openmldb-test-java/openmldb-test-common/pom.xml index 6741f69688e..57d6a1d0cb4 100644 --- a/test/integration-test/openmldb-test-java/openmldb-test-common/pom.xml +++ b/test/integration-test/openmldb-test-java/openmldb-test-common/pom.xml @@ -15,7 +15,7 @@ 8 8 - 0.6.4 + 0.7.0-SNAPSHOT 0.7.0-SNAPSHOT diff --git a/test/steps/format_config.sh b/test/steps/format_config.sh new file mode 100755 index 00000000000..9700d330974 --- /dev/null +++ b/test/steps/format_config.sh @@ -0,0 +1,126 @@ +#! /usr/bin/env bash + +#set DeployDir +rootPath="$1" +jobName="$2" +portFrom="$3" +portTo="$4" +Type="$5" +Dependency="$6" +version=$(grep 'OPENMLDB_VERSION' "$rootPath"/conf/openmldb-env.sh | awk -F= '{print $2}') +curTime=$(date "+%m%d%H%M") +dirName="${jobName}-${version}-${curTime}" + +#set Deploy Host and Ports +Hosts=(node-3 node-4 node-1) + +AvaNode1Ports=$(ssh "${Hosts[0]}" "comm -23 <(seq $portFrom $portTo | sort) <(sudo ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 8") +AvaNode2Ports=$(ssh "${Hosts[1]}" "comm -23 <(seq $portFrom $portTo | sort) <(sudo ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 2") +AvaNode3Ports=$(ssh "${Hosts[2]}" "comm -23 <(seq $portFrom $portTo | sort) <(sudo ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 1") + + +taskmanagerHost=$(hostname | awk -F"." '{print $1}' ) + +taskmanagerPort=$(ssh "${taskmanagerHost}" "comm -23 <(seq $portFrom $portTo | sort) <(sudo ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 1") + + +tablet1Port=$(echo "$AvaNode1Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $1}') +tablet2Port=$(echo "$AvaNode2Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $1}') +tablet3Port=$(echo "$AvaNode3Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $1}') +ns1Port=$(echo "$AvaNode1Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $2}') +ns2Port=$(echo "$AvaNode2Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $2}') +apiserverPort=$(echo "$AvaNode1Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $4}') +#taskmanagerPort=$(echo $AvaNode1Ports | awk '{print $5}') +zookeeperPort1=$(echo "$AvaNode1Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $6}') +zookeeperPort2=$(echo "$AvaNode1Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $7}') +zookeeperPort3=$(echo "$AvaNode1Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $8}') + +# write addr to hosts +cat >"$rootPath"/conf/hosts<"$rootPath"/conf/openmldb-env.sh<out/openmldb_info.yaml<>"$rootPath"/conf/tablet.flags.template<"$rootPath"/conf/taskmanager.properties<$rootPath/test/integration-test/openmldb-test-java/openmldb-ecosystem/src/test/resources/kafka_test_cases.ymls< 0 + assert status.OK() status, unalive_cnt = self.get_unalive_cnt("test", table_name) assert status.OK() and unalive_cnt == 0 From a6d7322dd17b0be4ca5b0d85c23e9a5a65cbc011 Mon Sep 17 00:00:00 2001 From: dl239 Date: Sun, 20 Aug 2023 22:50:28 -0500 Subject: [PATCH 026/111] fix: create function (#3441) --- src/cmd/single_tablet_test.cc | 6 +++++- src/nameserver/name_server_impl.cc | 3 ++- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/src/cmd/single_tablet_test.cc b/src/cmd/single_tablet_test.cc index be2335c8cc5..2c564b30546 100644 --- a/src/cmd/single_tablet_test.cc +++ b/src/cmd/single_tablet_test.cc @@ -65,7 +65,7 @@ TEST_P(DBSDKTest, CreateFunction) { sr = cli->sr; ::openmldb::sdk::SQLClusterRouter* sr_2 = nullptr; if (cs->IsClusterMode()) { - ::openmldb::sdk::ClusterOptions copt; + ::openmldb::sdk::ClusterOptions copt; copt.zk_cluster = mc.GetZkCluster(); copt.zk_path = mc.GetZkPath(); auto cur_cs = new ::openmldb::sdk::ClusterSDK(copt); @@ -75,6 +75,10 @@ TEST_P(DBSDKTest, CreateFunction) { ProcessSQLs(sr_2, {"set @@execute_mode = 'online'"}); } hybridse::sdk::Status status; + std::string err_cut2_sql = absl::StrCat("CREATE FUNCTION cut2(x STRING) RETURNS STRING " + "OPTIONS (FILE='libnotfound_udf.so');"); + sr->ExecuteSQL(err_cut2_sql, &status); + ASSERT_FALSE(status.IsOK()); std::string so_path = openmldb::test::GetParentDir(openmldb::test::GetExeDir()) + "/libtest_udf.so"; std::string cut2_sql = absl::StrCat("CREATE FUNCTION cut2(x STRING) RETURNS STRING " "OPTIONS (FILE='", so_path, "');"); diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index 550558b6132..3af886384e4 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -9735,8 +9735,9 @@ void NameServerImpl::CreateFunction(RpcController* controller, const CreateFunct std::string msg; if (!tablet->client_->CreateFunction(request->fun(), &msg)) { error_msgs.append("create function failed on " + tablet->client_->GetEndpoint() + ", reason: " + msg + ";"); + } else { + succ_tablets.emplace_back(tablet); } - succ_tablets.emplace_back(tablet); } // rollback and return, it's ok if tablet rollback failed if (succ_tablets.size() < tablets.size()) { From 5343823cf05e48de0331f6eff1945ee1c8578b1f Mon Sep 17 00:00:00 2001 From: dl239 Date: Sun, 20 Aug 2023 22:50:56 -0500 Subject: [PATCH 027/111] fix: fix nameserver fatal coredump (#3433) --- ...{data_collector_te1st.cc => data_collector_test.cc} | 10 ++++------ src/nameserver/name_server_impl.cc | 6 +++--- 2 files changed, 7 insertions(+), 9 deletions(-) rename src/datacollector/{data_collector_te1st.cc => data_collector_test.cc} (97%) diff --git a/src/datacollector/data_collector_te1st.cc b/src/datacollector/data_collector_test.cc similarity index 97% rename from src/datacollector/data_collector_te1st.cc rename to src/datacollector/data_collector_test.cc index efff494a8b5..d08cd4b71b8 100644 --- a/src/datacollector/data_collector_te1st.cc +++ b/src/datacollector/data_collector_test.cc @@ -104,9 +104,7 @@ TEST_F(DataCollectorTest, readSnapshot) { // read the manifest to get the offset api::Manifest manifest; std::string manifest_file = snapshot_hardlink_path + "MANIFEST"; - if (storage::Snapshot::GetLocalManifest(manifest_file, manifest) != 0) { - LOG(FATAL) << "get manifest failed"; - } + ASSERT_TRUE(storage::Snapshot::GetLocalManifest(manifest_file, manifest) == 0) << "get manifest failed"; LOG(INFO) << "manifest: " << manifest.ShortDebugString(); // mock table auto meta = GetTableSchema(6, 0); @@ -221,7 +219,7 @@ TEST_F(DataCollectorTest, taskAndRate) { datasync::AddSyncTaskRequest request; request.set_tid(6); request.set_pid(0); - request.set_mode(datasync::SyncMode::FULL); + request.set_mode(datasync::SyncMode::kFull); auto sync_point = request.mutable_sync_point(); sync_point->set_type(datasync::SyncType::kSNAPSHOT); // no pk&ts, means start from 0 @@ -236,7 +234,7 @@ TEST_F(DataCollectorTest, taskAndRate) { // sleep to call SyncOnce more sleep(1); // new token task but snapshot in db doesn't change, so the snapshot env is not changed - request.set_mode(datasync::SyncMode::INCREMENTAL_BY_TIMESTAMP); + request.set_mode(datasync::SyncMode::kIncrementalByTimestamp); request.set_start_ts(3); request.set_token("newer_one"); dc.AddSyncTask(nullptr, &request, &response, &closure); @@ -280,7 +278,7 @@ int main(int argc, char** argv) { srand(time(nullptr)); // TODO(hw): skip this test, cuz it needs sync tool. It's better to mock the sync tool - bool ok = true; + int ok = 0; // ok = RUN_ALL_TESTS(); // ::openmldb::sdk::mc_->Close(); return ok; diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index 3af886384e4..252fefd5917 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -5391,7 +5391,7 @@ void NameServerImpl::OnLocked() { CreateDatabaseOrExit(INTERNAL_DB); if (IsClusterMode()) { if (tablets_.size() < FLAGS_system_table_replica_num) { - LOG(FATAL) << "tablet num " << tablets_.size() << " is less then system table replica num " + LOG(ERROR) << "tablet num " << tablets_.size() << " is less then system table replica num " << FLAGS_system_table_replica_num; exit(1); } @@ -9596,7 +9596,7 @@ std::shared_ptr NameServerImpl::GetTablet(const std::string& endpoin void NameServerImpl::CreateDatabaseOrExit(const std::string& db) { auto status = CreateDatabase(db, true); if (!status.OK() && status.code != ::openmldb::base::ReturnCode::kDatabaseAlreadyExists) { - LOG(FATAL) << "create database failed. code=" << status.GetCode() << ", msg=" << status.GetMsg(); + LOG(ERROR) << "create database failed. code=" << status.GetCode() << ", msg=" << status.GetMsg(); exit(1); } } @@ -9604,7 +9604,7 @@ void NameServerImpl::CreateDatabaseOrExit(const std::string& db) { void NameServerImpl::CreateSystemTableOrExit(SystemTableType type) { auto status = CreateSystemTable(type); if (!status.OK()) { - LOG(FATAL) << "create system table " << GetSystemTableName(type) << " failed. code=" << status.GetCode() + LOG(ERROR) << "create system table " << GetSystemTableName(type) << " failed. code=" << status.GetCode() << ", msg=" << status.GetMsg(); exit(1); } From 29529f28ac5a4bd7f898d7ce4f36e6f50293c351 Mon Sep 17 00:00:00 2001 From: Wangerry Date: Mon, 21 Aug 2023 18:53:40 +0800 Subject: [PATCH 028/111] docs: fix typo (#3451) --- docs/zh/openmldb_sql/sql_difference.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/zh/openmldb_sql/sql_difference.md b/docs/zh/openmldb_sql/sql_difference.md index 4957f80649f..3118f8f71bb 100644 --- a/docs/zh/openmldb_sql/sql_difference.md +++ b/docs/zh/openmldb_sql/sql_difference.md @@ -54,7 +54,7 @@ | LAST JOIN | ✓ | ✓ | ✕ | | 子查询 / WITH 子句 | ✓ | ✓ | ✕ | -虽然在线请求模式无法支持支持 `WHERE` 子句,但是部分功能可以通过带有 `_where` 后缀的计算函数实现,比如 `count_where`, `avg_wgere` 等,详情查看[内置计算函数文档](functions_and_operators/Files/udfs_8h.md)。 +虽然在线请求模式无法支持 `WHERE` 子句,但是部分功能可以通过带有 `_where` 后缀的计算函数实现,比如 `count_where`, `avg_where` 等,详情查看[内置计算函数文档](functions_and_operators/Files/udfs_8h.md)。 ### LIMIT 子句 From 7aa1de757253e9e615b6889e9941253388ac96a4 Mon Sep 17 00:00:00 2001 From: "github-actions[bot]" <41898282+github-actions[bot]@users.noreply.github.com> Date: Tue, 22 Aug 2023 16:48:23 +0800 Subject: [PATCH 029/111] docs(udf): upgrade udf list (#3442) Co-authored-by: aceforeverd --- .../functions_and_operators/Files/udfs_8h.md | 50 +++++++++++++++++++ .../functions_and_operators/Files/udfs_8h.md | 50 +++++++++++++++++++ 2 files changed, 100 insertions(+) diff --git a/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md b/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md index fe8bf35b6b4..ac96c6bfc3f 100644 --- a/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md +++ b/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md @@ -57,6 +57,7 @@ title: udfs/udfs.h | **[first_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-first-value)**()|
Returns the value of expr from the latest row (last row) of the window frame. | | **[float](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-float)**()|
Cast string expression to float. | | **[floor](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-floor)**()|
Return the largest integer value not less than the expr. | +| **[get_json_object](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-get-json-object)**()|
Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901)| | **[hash64](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hash64)**()|
Returns a hash value of the arguments. It is not a cryptographic hash function and should not be used as such. | | **[hex](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hex)**()|
Convert integer to hexadecimal. | | **[hour](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hour)**()|
Return the hour for a timestamp. | @@ -1716,6 +1717,55 @@ SELECT FLOOR(1.23); * [`bool`] * [`number`] +### function get_json_object + +```cpp +get_json_object() +``` + +**Description**: + +Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901) + +**Parameters**: + + * **expr** A string expression contains well formed JSON + * **path** A string expression of JSON string representation from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901) + + +**Since**: +0.9.0 + + +NOTE JSON string is not fully validated. Which means that the function may still returns values even though returned string does not valid for JSON. It's your responsibility to make sure input string is valid JSON + + +Example: + +```sql + +select get_json_object('{"boo": "baz"}', "/boo") +-- baz + +select get_json_object('{"boo": [1, 2]}', "/boo/0") +-- 1 + +select get_json_object('{"m~n": 1}', "/m~0n") +-- 1 + +select get_json_object('{"m/n": 1}', "/m~1n") +-- 1 + +select get_json_object('{"foo": {"bar": bz}}', "/foo") +-- {"bar": bz} +--- returns value even input JSON is not a valid JSON +``` + + +**Supported Types**: + +* [`string`, `string`] + ### function hash64 ```cpp diff --git a/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md b/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md index fe8bf35b6b4..ac96c6bfc3f 100644 --- a/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md +++ b/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md @@ -57,6 +57,7 @@ title: udfs/udfs.h | **[first_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-first-value)**()|
Returns the value of expr from the latest row (last row) of the window frame. | | **[float](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-float)**()|
Cast string expression to float. | | **[floor](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-floor)**()|
Return the largest integer value not less than the expr. | +| **[get_json_object](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-get-json-object)**()|
Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901)| | **[hash64](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hash64)**()|
Returns a hash value of the arguments. It is not a cryptographic hash function and should not be used as such. | | **[hex](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hex)**()|
Convert integer to hexadecimal. | | **[hour](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hour)**()|
Return the hour for a timestamp. | @@ -1716,6 +1717,55 @@ SELECT FLOOR(1.23); * [`bool`] * [`number`] +### function get_json_object + +```cpp +get_json_object() +``` + +**Description**: + +Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901) + +**Parameters**: + + * **expr** A string expression contains well formed JSON + * **path** A string expression of JSON string representation from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901) + + +**Since**: +0.9.0 + + +NOTE JSON string is not fully validated. Which means that the function may still returns values even though returned string does not valid for JSON. It's your responsibility to make sure input string is valid JSON + + +Example: + +```sql + +select get_json_object('{"boo": "baz"}', "/boo") +-- baz + +select get_json_object('{"boo": [1, 2]}', "/boo/0") +-- 1 + +select get_json_object('{"m~n": 1}', "/m~0n") +-- 1 + +select get_json_object('{"m/n": 1}', "/m~1n") +-- 1 + +select get_json_object('{"foo": {"bar": bz}}', "/foo") +-- {"bar": bz} +--- returns value even input JSON is not a valid JSON +``` + + +**Supported Types**: + +* [`string`, `string`] + ### function hash64 ```cpp From c19aa7f901958dcce1ae99b50acdc739147e37ed Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 23 Aug 2023 17:06:36 +0800 Subject: [PATCH 030/111] feat: support inherit env variables for spark (#3450) --- docs/zh/deploy/conf.md | 9 ++++ .../taskmanager/config/TaskManagerConfig.java | 46 +++++++++---------- .../taskmanager/spark/SparkJobManager.scala | 17 +++++-- 3 files changed, 45 insertions(+), 27 deletions(-) diff --git a/docs/zh/deploy/conf.md b/docs/zh/deploy/conf.md index 3c20d83fe83..f9283a3b748 100644 --- a/docs/zh/deploy/conf.md +++ b/docs/zh/deploy/conf.md @@ -271,6 +271,15 @@ hadoop.conf.dir= Spark Config中重点关注的配置如下: +```{note} +理解配置项与环境变量的关系。 + +TaskManager会通过SparkSubmit创建Spark进程,因此环境变量不会简单的直接继承。举例说明:在0.8.2及以前的版本中,为了Spark进程可以读写HADOOP,可以连接YARN集群,需要配置环境变量`HADOOP_CONF_DIR`。在以后的版本中,可以通过配置项`hadoop.conf.dir`指定Hadoop配置文件所在目录,TaskManager会将此项作为环境变量传递给Spark进程。但最优先的是Spark自身的spark-env.sh,如果此处已经配置好了,TaskManager无法覆盖此项。 +所以,优先级为:spark-env.sh > TaskManager配置 > 当前环境变量HADOOP_CONF_DIR。 + +其中,`spark.home`仅用于TaskManager来识别Spark安装目录,不会传递给Spark进程。`hadoop.conf.dir`, `hadoop.user.name` 将会传递给Spark进程。如果有其他的变量需要传递,需要修改代码。 +``` + #### spark.home `spark.home`配置为Spark安装目录,TaskManager会使用该目录下的Spark执行离线任务。通常配置为下载的[OpenMLDB Spark 发行版](../../tutorial/openmldbspark_distribution.md)解压后的目录。 diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java index e37a6ab16fa..3be3bcf39ee 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java @@ -132,18 +132,12 @@ public static void doParse() throws ConfigException { } } - SPARK_HOME = prop.getProperty("spark.home", ""); - if (SPARK_HOME.isEmpty()) { - try { - if(System.getenv("SPARK_HOME") == null) { - throw new ConfigException("spark.home", "should set config 'spark.home' or environment variable 'SPARK_HOME'"); - } else { - SPARK_HOME = System.getenv("SPARK_HOME"); - } - } catch (Exception e) { - throw new ConfigException("spark.home", "should set environment variable 'SPARK_HOME' if 'spark.home' is null"); - } + SPARK_HOME = firstNonEmpty(prop.getProperty("spark.home"), System.getenv("SPARK_HOME")); + // isEmpty checks null and empty + if(isEmpty(SPARK_HOME)) { + throw new ConfigException("spark.home", "should set config 'spark.home' or environment variable 'SPARK_HOME'"); } + // TODO: Check if we can get spark-submit PREFETCH_JOBID_NUM = Integer.parseInt(prop.getProperty("prefetch.jobid.num", "1")); @@ -242,19 +236,12 @@ public static void doParse() throws ConfigException { } } - HADOOP_USER_NAME = prop.getProperty("hadoop.user.name", "root"); + // TODO(hw): need default root? + HADOOP_USER_NAME = firstNonEmpty(prop.getProperty("hadoop.user.name"), System.getenv("HADOOP_USER_NAME")); - HADOOP_CONF_DIR = prop.getProperty("hadoop.conf.dir", ""); - if (isYarn && HADOOP_CONF_DIR.isEmpty()) { - try { - if(System.getenv("HADOOP_CONF_DIR") == null) { - throw new ConfigException("hadoop.conf.dir", "should set config 'hadoop.conf.dir' or environment variable 'HADOOP_CONF_DIR'"); - } else { - HADOOP_CONF_DIR = System.getenv("HADOOP_CONF_DIR"); - } - } catch (Exception e) { - throw new ConfigException("hadoop.conf.dir", "should set environment variable 'HADOOP_CONF_DIR' if 'hadoop.conf.dir' is null"); - } + HADOOP_CONF_DIR = firstNonEmpty(prop.getProperty("hadoop.conf.dir"), System.getenv("HADOOP_CONF_DIR")); + if (isYarn && isEmpty(HADOOP_CONF_DIR)) { + throw new ConfigException("hadoop.conf.dir", "should set config 'hadoop.conf.dir' or environment variable 'HADOOP_CONF_DIR'"); } // TODO: Check if we can get core-site.xml @@ -276,4 +263,17 @@ public static boolean isYarnCluster() throws ConfigException { parse(); return SPARK_MASTER.equals("yarn") || SPARK_MASTER.equals("yarn-cluster"); } + + // ref org.apache.spark.launcher.CommandBuilderUtils + public static String firstNonEmpty(String... strings) { + for (String s : strings) { + if (!isEmpty(s)) { + return s; + } + } + return null; + } + public static boolean isEmpty(String s) { + return s == null || s.isEmpty(); + } } diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/spark/SparkJobManager.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/spark/SparkJobManager.scala index 20b2938b74e..8d2410fd13a 100644 --- a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/spark/SparkJobManager.scala +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/spark/SparkJobManager.scala @@ -36,12 +36,21 @@ object SparkJobManager { * @return the SparkLauncher object */ def createSparkLauncher(mainClass: String): SparkLauncher = { - - val launcher = new SparkLauncher() + val env: java.util.Map[String, String] = new java.util.HashMap[String, String] + // config may empty, need check + if (!TaskManagerConfig.isEmpty(TaskManagerConfig.HADOOP_CONF_DIR)) { + env.put("HADOOP_CONF_DIR", TaskManagerConfig.HADOOP_CONF_DIR) + } + // env.put("YARN_CONF_DIR", TaskManagerConfig.HADOOP_CONF_DIR) // unused now + if (!TaskManagerConfig.isEmpty(TaskManagerConfig.HADOOP_USER_NAME)){ + env.put("HADOOP_USER_NAME", TaskManagerConfig.HADOOP_USER_NAME) + } + + val launcher = new SparkLauncher(env) .setAppResource(TaskManagerConfig.BATCHJOB_JAR_PATH) .setMainClass(mainClass) - if (TaskManagerConfig.SPARK_HOME != null && TaskManagerConfig.SPARK_HOME.nonEmpty) { + if (!TaskManagerConfig.isEmpty(TaskManagerConfig.SPARK_HOME)) { launcher.setSparkHome(TaskManagerConfig.SPARK_HOME) } @@ -57,7 +66,7 @@ object SparkJobManager { } } - if (TaskManagerConfig.SPARK_YARN_JARS != null && TaskManagerConfig.SPARK_YARN_JARS.nonEmpty) { + if (!TaskManagerConfig.isEmpty(TaskManagerConfig.SPARK_YARN_JARS)) { launcher.setConf("spark.yarn.jars", TaskManagerConfig.SPARK_YARN_JARS) } From 1b8d596504a283269164b811d4896665a483a10f Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 23 Aug 2023 17:09:00 +0800 Subject: [PATCH 031/111] feat: support write single in spark connector (#3443) --- .../reference/sql/dml/LOAD_DATA_STATEMENT.md | 23 ++-- .../openmldb_sql/dml/LOAD_DATA_STATEMENT.md | 23 ++-- .../openmldb/batch/nodes/LoadDataPlan.scala | 5 +- .../openmldb/batch/utils/HybridseUtil.scala | 1 + .../openmldb/spark/OpenmldbSource.java | 9 +- .../openmldb/spark/OpenmldbTable.java | 7 +- .../spark/write/OpenmldbDataSingleWriter.java | 111 ++++++++++++++++++ .../spark/write/OpenmldbDataWriter.java | 12 +- .../write/OpenmldbDataWriterFactory.java | 3 + .../spark/write/OpenmldbWriteConfig.java | 5 +- 10 files changed, 164 insertions(+), 35 deletions(-) create mode 100644 java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataSingleWriter.java diff --git a/docs/en/reference/sql/dml/LOAD_DATA_STATEMENT.md b/docs/en/reference/sql/dml/LOAD_DATA_STATEMENT.md index 403442af6e2..8210b92217c 100644 --- a/docs/en/reference/sql/dml/LOAD_DATA_STATEMENT.md +++ b/docs/en/reference/sql/dml/LOAD_DATA_STATEMENT.md @@ -43,17 +43,18 @@ Supports loading data from Hive, but needs extra settings, see [Hive Support](#H The following table introduces the parameters of `LOAD DATA INFILE`. -| Parameter | Type | Default Value | Note | -| ---------- | ------- | ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -| delimiter | String | , | It defines the column separator, the default value is `,`. | -| header | Boolean | true | It indicates that whether the table to import has a header. If the value is `true`, the table has a header. | -| null_value | String | null | It defines the string that will be used to replace the `NULL` value when loading data. | -| format | String | csv | It defines the format of the input file.
`csv` is the default format.
`parquet` format is supported in the cluster version. | -| quote | String | " | It defines the string surrounding the input data. The string length should be <= 1.
load_mode='cluster': default is `"`, the content surrounded by a pair of the quote characters will be parsed as a whole. For example, if the surrounding string is `"#"` then the original data like `1, 1.0, #This is a string, with comma#, normal_string` will be converted to four fields. The first field is an integer 1, the second is a float 1.0, the third field is a string "This is a string, with comma" and the 4th is "normal_string" even it's no quote.
load_mode='local': default is `\0`, which means that the string surrounding the input data is empty. | -| mode | String | "error_if_exists" | It defines the input mode.
`error_if_exists` is the default mode which indicates that an error will be thrown out if the offline table already has data. This input mode is only supported by the offline execution mode.
`overwrite` indicates that if the file already exists, the data will overwrite the contents of the original file. This input mode is only supported by the offline execution mode.
`append` indicates that if the table already exists, the data will be appended to the original table. Both offline and online execution modes support this input mode. | -| deep_copy | Boolean | true | It defines whether `deep_copy` is used. Only offline load supports `deep_copy=false`, you can specify the `INFILE` path as the offline storage address of the table to avoid hard copy. | -| load_mode | String | cluster | `load_mode='local'` only supports loading the `csv` local files into the `online` storage; It loads the data synchronously by the client process.
`load_mode='cluster'` only supports the cluster version. It loads the data via Spark synchronously or asynchronously. | -| thread | Integer | 1 | It only works for data loading locally, i.e., `load_mode='local'` or in the standalone version; It defines the number of threads used for data loading. The max value is `50`. | +| Parameter | Type | Default Value | Note | +| ----------- | ------- | ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | +| delimiter | String | , | It defines the column separator, the default value is `,`. | +| header | Boolean | true | It indicates that whether the table to import has a header. If the value is `true`, the table has a header. | +| null_value | String | null | It defines the string that will be used to replace the `NULL` value when loading data. | +| format | String | csv | It defines the format of the input file.
`csv` is the default format.
`parquet` format is supported in the cluster version. | +| quote | String | " | It defines the string surrounding the input data. The string length should be <= 1.
load_mode='cluster': default is `"`, the content surrounded by a pair of the quote characters will be parsed as a whole. For example, if the surrounding string is `"#"` then the original data like `1, 1.0, #This is a string, with comma#, normal_string` will be converted to four fields. The first field is an integer 1, the second is a float 1.0, the third field is a string "This is a string, with comma" and the 4th is "normal_string" even it's no quote.
load_mode='local': default is `\0`, which means that the string surrounding the input data is empty. | +| mode | String | "error_if_exists" | It defines the input mode.
`error_if_exists` is the default mode which indicates that an error will be thrown out if the offline table already has data. This input mode is only supported by the offline execution mode.
`overwrite` indicates that if the file already exists, the data will overwrite the contents of the original file. This input mode is only supported by the offline execution mode.
`append` indicates that if the table already exists, the data will be appended to the original table. Both offline and online execution modes support this input mode. | +| deep_copy | Boolean | true | It defines whether `deep_copy` is used. Only offline load supports `deep_copy=false`, you can specify the `INFILE` path as the offline storage address of the table to avoid hard copy. | +| load_mode | String | cluster | `load_mode='local'` only supports loading the `csv` local files into the `online` storage; It loads the data synchronously by the client process.
`load_mode='cluster'` only supports the cluster version. It loads the data via Spark synchronously or asynchronously. | +| thread | Integer | 1 | It only works for data loading locally, i.e., `load_mode='local'` or in the standalone version; It defines the number of threads used for data loading. The max value is `50`. | +| writer_type | String | single | The writer type for online loading in cluster mode, `single` or `batch`, default is `single`。`single` means write to cluster when reading, cost less memory. `batch` will read the whole rdd partition, check all data is right to pack, then write to cluster, it needs more memory. In some cases, `batch` is better to get the unwritten data, and retry the unwritten part | ```{note} - In the cluster version, the specified execution mode (defined by `execute_mode`) determines whether to import data to online or offline storage when the `LOAD DATA INFILE` statement is executed. For the standalone version, there is no difference in storage mode and the `deep_copy` option is not supported. diff --git a/docs/zh/openmldb_sql/dml/LOAD_DATA_STATEMENT.md b/docs/zh/openmldb_sql/dml/LOAD_DATA_STATEMENT.md index 0bea7f2f98d..6be6d934f5f 100644 --- a/docs/zh/openmldb_sql/dml/LOAD_DATA_STATEMENT.md +++ b/docs/zh/openmldb_sql/dml/LOAD_DATA_STATEMENT.md @@ -40,17 +40,18 @@ FilePathPattern 下表展示了`LOAD DATA INFILE`语句的配置项。 -| 配置项 | 类型 | 默认值 | 描述 | -| ---------- | ------- | ----------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -| delimiter | String | , | 列分隔符,默认为`,`。 | -| header | Boolean | true | 是否包含表头, 默认为`true` 。 | -| null_value | String | null | NULL值,默认填充`"null"`。加载时,遇到null_value的字符串将被转换为`"null"`,插入表中。 | -| format | String | csv | 导入文件的格式:
`csv`: 不显示指明format时,默认为该值。
`parquet`: 集群版还支持导入parquet格式文件,单机版不支持。 | -| quote | String | " | 输入数据的包围字符串。字符串长度<=1。
load_mode=`cluster`默认为双引号`"`。配置包围字符后,被包围字符包围的内容将作为一个整体解析。例如,当配置包围字符串为"#"时, `1, 1.0, #This is a string field, even there is a comma#, normal_string`将为解析为三个filed,第一个是整数1,第二个是浮点1.0,第三个是一个字符串,第四个虽然没有quote,但也是一个字符串。
**local_mode=`local`默认为`\0`,不处理包围字符。**| -| mode | String | "error_if_exists" | 导入模式:
`error_if_exists`: 仅离线模式可用,若离线表已有数据则报错。
`overwrite`: 仅离线模式可用,数据将覆盖离线表数据。
`append`:离线在线均可用,若文件已存在,数据将追加到原文件后面。 | -| deep_copy | Boolean | true | `deep_copy=false`仅支持离线load, 可以指定`INFILE` Path为该表的离线存储地址,从而不需要硬拷贝。 | -| load_mode | String | cluster | `load_mode='local'`仅支持从csv本地文件导入在线存储, 它通过本地客户端同步插入数据;
`load_mode='cluster'`仅支持集群版, 通过spark插入数据,支持同步或异步模式 | -| thread | Integer | 1 | 仅在本地文件导入时生效,即`load_mode='local'`或者单机版,表示本地插入数据的线程数。 最大值为`50`。 | +| 配置项 | 类型 | 默认值 | 描述 | +| ----------- | ------- | ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | +| delimiter | String | , | 列分隔符,默认为`,`。 | +| header | Boolean | true | 是否包含表头, 默认为`true` 。 | +| null_value | String | null | NULL值,默认填充`"null"`。加载时,遇到null_value的字符串将被转换为`"null"`,插入表中。 | +| format | String | csv | 导入文件的格式:
`csv`: 不显示指明format时,默认为该值。
`parquet`: 集群版还支持导入parquet格式文件,单机版不支持。 | +| quote | String | " | 输入数据的包围字符串。字符串长度<=1。
load_mode=`cluster`默认为双引号`"`。配置包围字符后,被包围字符包围的内容将作为一个整体解析。例如,当配置包围字符串为"#"时, `1, 1.0, #This is a string field, even there is a comma#, normal_string`将为解析为三个filed,第一个是整数1,第二个是浮点1.0,第三个是一个字符串,第四个虽然没有quote,但也是一个字符串。
**local_mode=`local`默认为`\0`,不处理包围字符。** | +| mode | String | "error_if_exists" | 导入模式:
`error_if_exists`: 仅离线模式可用,若离线表已有数据则报错。
`overwrite`: 仅离线模式可用,数据将覆盖离线表数据。
`append`:离线在线均可用,若文件已存在,数据将追加到原文件后面。 | +| deep_copy | Boolean | true | `deep_copy=false`仅支持离线load, 可以指定`INFILE` Path为该表的离线存储地址,从而不需要硬拷贝。 | +| load_mode | String | cluster | `load_mode='local'`仅支持从csv本地文件导入在线存储, 它通过本地客户端同步插入数据;
`load_mode='cluster'`仅支持集群版, 通过spark插入数据,支持同步或异步模式 | +| thread | Integer | 1 | 仅在本地文件导入时生效,即`load_mode='local'`或者单机版,表示本地插入数据的线程数。 最大值为`50`。 | +| writer_type | String | single | 集群版在线导入中插入数据的writer类型。可选值为`single`和`batch`,默认为`single`。`single`表示数据即读即写,节省内存。`batch`则是将整个rdd分区读完,确认数据类型有效性后,再写入集群,需要更多内存。在部分情况下,`batch`模式有利于筛选未写入的数据,方便重试这部分数据。 | ```{note} 在集群版中,`LOAD DATA INFILE`语句会根据当前执行模式(execute_mode)决定将数据导入到在线或离线存储。单机版中没有存储区别,只会导入到在线存储中,同时也不支持`deep_copy`选项。 diff --git a/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/nodes/LoadDataPlan.scala b/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/nodes/LoadDataPlan.scala index 6e962675e53..36398d199cf 100644 --- a/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/nodes/LoadDataPlan.scala +++ b/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/nodes/LoadDataPlan.scala @@ -55,12 +55,13 @@ object LoadDataPlan { logger.info("write data to storage {}, writer[mode {}], is deep? {}", storage, mode, deepCopy.toString) if (storage == "online") { // Import online data require(deepCopy && mode == "append", "import to online storage, can't do soft copy, and mode must be append") - + val writeType = extra.get("writer_type").get val writeOptions = Map( "db" -> db, "table" -> table, "zkCluster" -> ctx.getConf.openmldbZkCluster, - "zkPath" -> ctx.getConf.openmldbZkRootPath + "zkPath" -> ctx.getConf.openmldbZkRootPath, + "writerType" -> writeType ) df.write.options(writeOptions).format("openmldb").mode(mode).save() } else { // Import offline data diff --git a/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/utils/HybridseUtil.scala b/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/utils/HybridseUtil.scala index 3a5ca64732d..4e0edd9b8a2 100644 --- a/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/utils/HybridseUtil.scala +++ b/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/utils/HybridseUtil.scala @@ -251,6 +251,7 @@ object HybridseUtil { // only for select into, "" means N/A extraOptions += ("coalesce" -> parseOption(getOptionFromNode(node, "coalesce"), "0", getIntOrDefault)) + extraOptions += ("writer_type") -> parseOption(getOptionFromNode(node, "writer_type"), "single", getStringOrDefault) (format, options.toMap, mode, extraOptions.toMap) } diff --git a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/OpenmldbSource.java b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/OpenmldbSource.java index d31fc377dd0..5595e313af5 100644 --- a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/OpenmldbSource.java +++ b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/OpenmldbSource.java @@ -37,6 +37,9 @@ public class OpenmldbSource implements TableProvider, DataSourceRegister { private String dbName; private String tableName; private SdkOption option = null; + // single: insert when read one row + // batch: insert when commit(after read a whole partition) + private String writerType = "single"; @Override public StructType inferSchema(CaseInsensitiveStringMap options) { @@ -63,12 +66,16 @@ public StructType inferSchema(CaseInsensitiveStringMap options) { option.setEnableDebug(Boolean.valueOf(debug)); } + if (options.containsKey("writerType")) { + writerType = options.get("writerType"); + } + return null; } @Override public Table getTable(StructType schema, Transform[] partitioning, Map properties) { - return new OpenmldbTable(dbName, tableName, option); + return new OpenmldbTable(dbName, tableName, option, writerType); } @Override diff --git a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/OpenmldbTable.java b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/OpenmldbTable.java index 8f6b588e84f..0cf98b7d19e 100644 --- a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/OpenmldbTable.java +++ b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/OpenmldbTable.java @@ -48,25 +48,28 @@ public class OpenmldbTable implements SupportsWrite, SupportsRead { private final String dbName; private final String tableName; private final SdkOption option; + private final String writerType; private SqlExecutor executor = null; private Set capabilities; - public OpenmldbTable(String dbName, String tableName, SdkOption option) { + public OpenmldbTable(String dbName, String tableName, SdkOption option, String writerType) { this.dbName = dbName; this.tableName = tableName; this.option = option; + this.writerType = writerType; try { this.executor = new SqlClusterExecutor(option); // no need to check table exists, schema() will check it later } catch (SqlException e) { e.printStackTrace(); } + // TODO: cache schema & delete executor? } @Override public WriteBuilder newWriteBuilder(LogicalWriteInfo info) { - OpenmldbWriteConfig config = new OpenmldbWriteConfig(dbName, tableName, option); + OpenmldbWriteConfig config = new OpenmldbWriteConfig(dbName, tableName, option, writerType); return new OpenmldbWriteBuilder(config, info); } diff --git a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataSingleWriter.java b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataSingleWriter.java new file mode 100644 index 00000000000..fd767d4eebb --- /dev/null +++ b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataSingleWriter.java @@ -0,0 +1,111 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.spark.write; + +import com._4paradigm.openmldb.sdk.Schema; +import com._4paradigm.openmldb.sdk.SdkOption; +import com._4paradigm.openmldb.sdk.SqlException; +import com._4paradigm.openmldb.sdk.impl.SqlClusterExecutor; +import com.google.common.base.Preconditions; +import org.apache.spark.sql.catalyst.InternalRow; +import org.apache.spark.sql.connector.write.DataWriter; +import org.apache.spark.sql.connector.write.WriterCommitMessage; + +import java.io.IOException; +import java.sql.Date; +import java.sql.PreparedStatement; +import java.sql.ResultSetMetaData; +import java.sql.SQLException; +import java.sql.Timestamp; +import java.sql.Types; + +public class OpenmldbDataSingleWriter implements DataWriter { + private final int partitionId; + private final long taskId; + private PreparedStatement preparedStatement = null; + + public OpenmldbDataSingleWriter(OpenmldbWriteConfig config, int partitionId, long taskId) { + try { + SdkOption option = new SdkOption(); + option.setZkCluster(config.zkCluster); + option.setZkPath(config.zkPath); + SqlClusterExecutor executor = new SqlClusterExecutor(option); + String dbName = config.dbName; + String tableName = config.tableName; + + Schema schema = executor.getTableSchema(dbName, tableName); + // create insert placeholder + StringBuilder insert = new StringBuilder("insert into " + tableName + " values(?"); + for (int i = 1; i < schema.getColumnList().size(); i++) { + insert.append(",?"); + } + insert.append(");"); + preparedStatement = executor.getInsertPreparedStmt(dbName, insert.toString()); + } catch (SQLException | SqlException e) { + e.printStackTrace(); + } + + this.partitionId = partitionId; + this.taskId = taskId; + } + + @Override + public void write(InternalRow record) throws IOException { + try { + // record to openmldb row + ResultSetMetaData metaData = preparedStatement.getMetaData(); + Preconditions.checkState(record.numFields() == metaData.getColumnCount()); + OpenmldbDataWriter.addRow(record, preparedStatement); + preparedStatement.execute(); + } catch (Exception e) { + throw new IOException("write row to openmldb failed on " + record, e); + } + } + + @Override + public WriterCommitMessage commit() throws IOException { + try { + preparedStatement.close(); + } catch (SQLException e) { + e.printStackTrace(); + throw new IOException("commit error", e); + } + // TODO(hw): need to return new WriterCommitMessageImpl(partitionId, taskId); ? + return null; + } + + @Override + public void abort() throws IOException { + try { + preparedStatement.close(); + } catch (SQLException e) { + e.printStackTrace(); + throw new IOException("abort error", e); + } + } + + @Override + public void close() throws IOException { + try { + preparedStatement.close(); + } catch (SQLException e) { + e.printStackTrace(); + throw new IOException("close error", e); + } + } +} diff --git a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataWriter.java b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataWriter.java index 50f2a0f4b5c..3cb7632ae0b 100644 --- a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataWriter.java +++ b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataWriter.java @@ -73,11 +73,11 @@ public void write(InternalRow record) throws IOException { addRow(record, preparedStatement); preparedStatement.addBatch(); } catch (Exception e) { - throw new IOException("convert to openmldb row failed on " + record + ", err: "+ e, e); + throw new IOException("convert to openmldb row failed on " + record, e); } } - private void addRow(InternalRow record, PreparedStatement preparedStatement) throws SQLException { + static void addRow(InternalRow record, PreparedStatement preparedStatement) throws SQLException { // idx in preparedStatement starts from 1 ResultSetMetaData metaData = preparedStatement.getMetaData(); for (int i = 0; i < record.numFields(); i++) { @@ -131,13 +131,13 @@ public WriterCommitMessage commit() throws IOException { for(int i = 0; i < rc.length; i++) { int code = rc[i]; if (code < 0) { - throw new SQLException("insert failed. result code: " + code); + throw new SQLException("insert failed on " + i + ", result code " + code); } } preparedStatement.close(); } catch (SQLException e) { e.printStackTrace(); - throw new IOException(e.getMessage()); + throw new IOException("commit(write to openmldb) error", e); } // TODO(hw): need to return new WriterCommitMessageImpl(partitionId, taskId); ? return null; @@ -149,7 +149,7 @@ public void abort() throws IOException { preparedStatement.close(); } catch (SQLException e) { e.printStackTrace(); - throw new IOException(e.getMessage()); + throw new IOException("abort error", e); } } @@ -159,7 +159,7 @@ public void close() throws IOException { preparedStatement.close(); } catch (SQLException e) { e.printStackTrace(); - throw new IOException(e.getMessage()); + throw new IOException("close error", e); } } } diff --git a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataWriterFactory.java b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataWriterFactory.java index 9f52a08fe4d..96e78979b2f 100644 --- a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataWriterFactory.java +++ b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbDataWriterFactory.java @@ -30,6 +30,9 @@ public OpenmldbDataWriterFactory(OpenmldbWriteConfig config) { @Override public DataWriter createWriter(int partitionId, long taskId) { + if (!config.writerType.equals("batch")) { + return new OpenmldbDataSingleWriter(config, partitionId, taskId); + } return new OpenmldbDataWriter(config, partitionId, taskId); } } diff --git a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbWriteConfig.java b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbWriteConfig.java index 64f5d03820e..89c2d801ca5 100644 --- a/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbWriteConfig.java +++ b/java/openmldb-spark-connector/src/main/java/com/_4paradigm/openmldb/spark/write/OpenmldbWriteConfig.java @@ -23,13 +23,14 @@ // Must serializable public class OpenmldbWriteConfig implements Serializable { - public final String dbName, tableName, zkCluster, zkPath; + public final String dbName, tableName, zkCluster, zkPath, writerType; - public OpenmldbWriteConfig(String dbName, String tableName, SdkOption option) { + public OpenmldbWriteConfig(String dbName, String tableName, SdkOption option, String writerType) { this.dbName = dbName; this.tableName = tableName; this.zkCluster = option.getZkCluster(); this.zkPath = option.getZkPath(); + this.writerType = writerType; // TODO(hw): other configs in SdkOption } } From 1b527085c4e55ab682a85fcb28fa063b0b69a6f6 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Fri, 25 Aug 2023 10:58:43 +0800 Subject: [PATCH 032/111] feat: deploy with bias (#3456) * feat: deploy with bias * ut sleep * avoid change unbounded(0) ttl --- .../sql/deployment_manage/DEPLOY_STATEMENT.md | 17 ++- .../deployment_manage/DEPLOY_STATEMENT.md | 17 ++- src/base/ddl_parser.cc | 3 +- src/cmd/sql_cmd_test.cc | 100 ++++++++++++- src/sdk/sql_cluster_router.cc | 140 ++++++++++++++---- src/sdk/sql_cluster_router.h | 50 ++++++- 6 files changed, 292 insertions(+), 35 deletions(-) diff --git a/docs/en/reference/sql/deployment_manage/DEPLOY_STATEMENT.md b/docs/en/reference/sql/deployment_manage/DEPLOY_STATEMENT.md index d8b5f31f153..06e2fdedcff 100644 --- a/docs/en/reference/sql/deployment_manage/DEPLOY_STATEMENT.md +++ b/docs/en/reference/sql/deployment_manage/DEPLOY_STATEMENT.md @@ -99,6 +99,11 @@ DeployOption DeployOptionItem ::= 'LONG_WINDOWS' '=' LongWindowDefinitions | 'SKIP_INDEX_CHECK' '=' string_literal + | 'RANGE_BIAS' '=' RangeBiasValueExpr + | 'ROWS_BIAS' '=' RowsBiasValueExpr + +RangeBiasValueExpr ::= int_literal | interval_literal | string_literal +RowsBiasValueExpr ::= int_literal | string_literal ``` #### Long Window Optimization @@ -164,7 +169,7 @@ DEPLOY demo OPTIONS (SKIP_INDEX_CHECK="TRUE") SELECT * FROM t1 LAST JOIN t2 ORDER BY t2.col3 ON t1.col1 = t2.col1; ``` -### Synchronization/Asynchronization Settings +#### Synchronization/Asynchronization Settings When executing deploy, you can set the synchronous/asynchronous mode through the `SYNC` option. The default value of `SYNC` is `true`, that is, the synchronous mode. If the relevant tables involved in the deploy statement have data and needs to add one or more indexs, executing deploy will initiate a job to execute a series of tasks such as loading data. In this case a job id will be returned if the `SYNC` option is set to `false`. You can get the job execution status by `SHOW JOBS FROM NAMESERVER LIKE '{job_id}'` **Example** @@ -173,6 +178,16 @@ deploy demo options(SYNC="false") SELECT t1.col1, t2.col2, sum(col4) OVER w1 as WINDOW w1 AS (PARTITION BY t1.col2 ORDER BY t1.col3 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); ``` +#### BIAS + +If you don't want data to be expired by the deployed index, or want data expired later, you can set bias when deploy, which is usually used in the case of data timestamp is not real-time, test, etc. If the index ttl after deploy is abs 3h, but the data timestamp is 3h ago(based on system time), then the data will be eliminated and cannot participate in the calculation. Setting a certain time or permanent bias can make the data stay in the online table for a longer time. + +Range bias can be `s`, `m`, `h`, `d`, or integer(unit is ms), or `inf`(means infinite, never expire). Rows bias can be integer, or `inf`(means infinite, never expire). In both type, 0 means no bias. + +Notice that, we only add bias to deployed index, which is new index. It's not the final index. The final index is `bias + new_index` if deployment will create index. And the final index is `merge(old_index, bias + new_index)` if deployment will update index. + +And range bias unit is `min`, we'll convert it to `min` and get upper bound. e.g. deployed index ttl is abs 2min, add range bias 20s, the result is `2min + ub(20s) = 3min`, and merge with old index 1min, the final index is `max(1min, 3min) = 3min`. + ## Relevant SQL [USE DATABASE](../ddl/USE_DATABASE_STATEMENT.md) diff --git a/docs/zh/openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md b/docs/zh/openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md index 7332add2aa4..4f94e228357 100644 --- a/docs/zh/openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md +++ b/docs/zh/openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md @@ -100,6 +100,11 @@ DeployOptionItem ::= 'LONG_WINDOWS' '=' LongWindowDefinitions | 'SKIP_INDEX_CHECK' '=' string_literal | 'SYNC' '=' string_literal + | 'RANGE_BIAS' '=' RangeBiasValueExpr + | 'ROWS_BIAS' '=' RowsBiasValueExpr + +RangeBiasValueExpr ::= int_literal | interval_literal | string_literal +RowsBiasValueExpr ::= int_literal | string_literal ``` #### 长窗口优化 @@ -161,7 +166,7 @@ DEPLOY demo OPTIONS (SKIP_INDEX_CHECK="TRUE") SELECT * FROM t1 LAST JOIN t2 ORDER BY t2.col3 ON t1.col1 = t2.col1; ``` -### 设置同步/异步 +#### 设置同步/异步 执行deploy的时候可以通过`SYNC`选项来设置同步/异步模式, 默认为`true`即同步模式。如果deploy语句中涉及的相关表有数据,并且需要添加索引的情况下,执行deploy会发起数据加载等任务,如果`SYNC`选项设置为`false`就会返回一个任务id。可以通过`SHOW JOBS FROM NAMESERVER LIKE '{job_id}'`来查看任务执行状态。 **Example** @@ -170,6 +175,16 @@ deploy demo options(SYNC="false") SELECT t1.col1, t2.col2, sum(col4) OVER w1 as WINDOW w1 AS (PARTITION BY t1.col2 ORDER BY t1.col3 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); ``` +#### 设置偏移 + +如果你并不希望数据根据deploy的索引淘汰,或者希望晚一点淘汰,可以在deploy时设置偏移,常用于数据时间戳并不实时的情况、测试等情况。如果deploy后的索引ttl为abs 3h,但是数据的时间戳是3h前的(以系统时间为基准),那么这条数据就会被淘汰,无法参与计算。设置一定时间或永久的偏移,则可以让数据更久的停留在在线表中。 + +时间偏移,单位可以是`s`、`m`、`h`、`d`,也可以是整数,单位为`ms`,也可以是`inf`,表示永不淘汰;如果是行数偏移,可以是整数,单位是`row`,也可以是`inf`,表示永不淘汰。两种偏移中,0均表示不偏移。 + +注意,我们只将偏移加在deploy的解析索引中,也就是新索引,它们并不是最终索引。最终索引的计算方式是,如果是创建索引,最终索引是`解析索引 + 偏移`;如果是更新索引,最终索引是`merge(旧索引, 新索引 + 偏移)`。 + +而时间偏移的单位是`min`,我们会在内部将其转换为`min`,并且取上界。比如,新索引ttl是abs 2min,加上偏移20s,结果是`2min + ub(20s) = 3min`,然后和旧索引1min取上界,最终索引ttl是`max(1min, 3min) = 3min`。 + ## 相关SQL [USE DATABASE](../ddl/USE_DATABASE_STATEMENT.md) diff --git a/src/base/ddl_parser.cc b/src/base/ddl_parser.cc index 6bb116ecb0a..c69b6b502ed 100644 --- a/src/base/ddl_parser.cc +++ b/src/base/ddl_parser.cc @@ -564,7 +564,8 @@ int64_t LatTTLConvert(int64_t lat, bool zero_eq_unbounded) { // history_range_start == INT64_MIN: unbounded // history_range_start == 0: not unbounded -// NOTICE: do not convert invalid range/rows start. It'll get 0 from `GetHistoryRangeStart`. +// And after convert, 0 means unbounded, history_range_start 0 will be converted to 1 +// NOTICE: do not convert invalid range/rows start, it'll return 0 by `GetHistoryRangeStart`. int64_t AbsTTLConvert(int64_t history_range_start) { return history_range_start == INT64_MIN ? 0 : AbsTTLConvert(-1 * history_range_start, false); } diff --git a/src/cmd/sql_cmd_test.cc b/src/cmd/sql_cmd_test.cc index 1c9fd6b1dc6..e6f2b88012a 100644 --- a/src/cmd/sql_cmd_test.cc +++ b/src/cmd/sql_cmd_test.cc @@ -944,6 +944,101 @@ TEST_P(DBSDKTest, DeployWithData) { ASSERT_TRUE(cs->GetNsClient()->DropDatabase("test2", msg)); } +TEST_P(DBSDKTest, DeployWithBias) { + auto cli = GetParam(); + cs = cli->cs; + sr = cli->sr; + std::string db = "test_bias"; + std::string ddl1 = + "create table if not exists t1 (col1 string, col2 string, col3 bigint, col4 int, " + "index(key=col1, ts=col3, TTL_TYPE=absolute)) options (partitionnum=2, replicanum=1);"; + std::string ddl2 = + "create table if not exists t2 (col1 string, col2 string, col3 bigint, " + "index(key=col1, ts=col3, TTL_TYPE=absolute)) options (partitionnum=2, replicanum=1);"; + ProcessSQLs(sr, { + "set @@execute_mode = 'online';", + "create database " + db , + "use " + db, + ddl1, + ddl2, + }); + hybridse::sdk::Status status; + for (int i = 0; i < 100; i++) { + std::string key1 = absl::StrCat("col1", i); + std::string key2 = absl::StrCat("col2", i); + sr->ExecuteSQL(absl::StrCat("insert into t1 values ('", key1, "', '", key2, "', 1635247427000, 5);"), &status); + sr->ExecuteSQL(absl::StrCat("insert into t2 values ('", key1, "', '", key2, "', 1635247427000);"), &status); + } + sleep(2); + + std::string rows_deployment_part = + "SELECT t1.col1, t2.col2, sum(col4) OVER w1 as w1_col4_sum " + "FROM t1 " + "LAST JOIN t2 ORDER BY t2.col3 ON t1.col2 = t2.col2 " + "WINDOW w1 AS (PARTITION BY t1.col2 ORDER BY t1.col3 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW);"; + auto range_deployment_part = + "SELECT t1.col1, t2.col2, sum(col4) OVER w1 as w1_col4_sum " + "FROM t1 " + "LAST JOIN t2 ORDER BY t2.col3 ON t1.col2 = t2.col2 " + "WINDOW w1 AS (PARTITION BY t1.col2 ORDER BY t1.col3 ROWS_RANGE BETWEEN 2 PRECEDING AND CURRENT ROW);"; + + // test rows bias + auto i = 0; + auto rows_test = [&](std::string option, bool expect = true) { + sr->ExecuteSQL(absl::StrCat("DEPLOY d", i++, " OPTIONS(", option, ") ", rows_deployment_part), &status); + if (expect) + EXPECT_TRUE(status.IsOK()); + else + EXPECT_FALSE(status.IsOK()); + // check table index + auto info = sr->GetTableInfo(db, "t1"); + return info.column_key().Get(1); + }; + + auto index_res = rows_test("rows_bias=0"); + ASSERT_EQ(index_res.ttl().lat_ttl(), 2); + // range bias won't work cuz no new abs index in deploy + index_res = rows_test("rows_bias=20, range_bias='inf'"); + ASSERT_EQ(index_res.ttl().lat_ttl(), 22); + rows_test("rows_bias=20s", false); + i--; // last one is failed, reset the num + + // test range bias + auto range_test = [&](std::string option, bool expect = true) { + sr->ExecuteSQL(absl::StrCat("DEPLOY d", i++, " OPTIONS(", option, ") ", range_deployment_part), &status); + if (expect) + EXPECT_TRUE(status.IsOK()); + else + EXPECT_FALSE(status.IsOK()); + // check table index + auto info = sr->GetTableInfo(db, "t1"); + return info.column_key().Get(1); + }; + index_res = range_test("range_bias=0"); + ASSERT_EQ(index_res.ttl().abs_ttl(), 1); + index_res = range_test("range_bias=20"); + ASSERT_EQ(index_res.ttl().abs_ttl(), 2); + // rows bias won't work cuz no **new** lat index in deploy, just new abs index + the old index + index_res = range_test("range_bias=1d, rows_bias=100"); + ASSERT_EQ(index_res.ttl().abs_ttl(), 1441); + + // set inf in the end, if not, all bias + inf = inf + index_res = rows_test("range_bias='inf'"); + ASSERT_EQ(index_res.ttl().abs_ttl(), 0); + index_res = rows_test("rows_bias='inf'"); + ASSERT_EQ(index_res.ttl().lat_ttl(), 0); + + // sp in tablet may be stored a bit late, wait + sleep(3); + std::string msg; + for (int j = 0; j < i; j++) { + ASSERT_TRUE(cs->GetNsClient()->DropProcedure(db, "d" + std::to_string(j), msg)); + } + ASSERT_TRUE(cs->GetNsClient()->DropTable(db, "t1", msg)); + ASSERT_TRUE(cs->GetNsClient()->DropTable(db, "t2", msg)); + ASSERT_TRUE(cs->GetNsClient()->DropDatabase(db, msg)); +} + TEST_P(DBSDKTest, DeletetRange) { auto cli = GetParam(); sr = cli->sr; @@ -994,7 +1089,8 @@ TEST_P(DBSDKTest, DeletetSameColIndex) { sr = cli->sr; std::string db_name = "test2"; std::string table_name = "test1"; - std::string ddl = "create table test1 (c1 string, c2 int, c3 bigint, c4 bigint, " + std::string ddl = + "create table test1 (c1 string, c2 int, c3 bigint, c4 bigint, " "INDEX(KEY=c1, ts=c3), INDEX(KEY=c1, ts=c4));"; ProcessSQLs(sr, { "set @@execute_mode = 'online'", @@ -1008,7 +1104,7 @@ TEST_P(DBSDKTest, DeletetSameColIndex) { for (int j = 0; j < 10; j++) { uint64_t ts = 1000 + j; sr->ExecuteSQL(absl::StrCat("insert into ", table_name, " values ('", key, "', 11, ", ts, ",", ts, ");"), - &status); + &status); } } diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 5d821dbe884..89575f02a58 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -72,6 +72,8 @@ using hybridse::plan::PlanAPI; constexpr const char* SKIP_INDEX_CHECK_OPTION = "skip_index_check"; constexpr const char* SYNC_OPTION = "sync"; +constexpr const char* RANGE_BIAS_OPTION = "range_bias"; +constexpr const char* ROWS_BIAS_OPTION = "rows_bias"; class ExplainInfoImpl : public ExplainInfo { public: @@ -385,8 +387,8 @@ std::shared_ptr SQLClusterRouter::GetDeleteRow(cons if (delete_cache) { status->code = 0; return std::make_shared( - delete_cache->GetDatabase(), delete_cache->GetTableName(), - delete_cache->GetDefaultCondition(), delete_cache->GetCondition()); + delete_cache->GetDatabase(), delete_cache->GetTableName(), delete_cache->GetDefaultCondition(), + delete_cache->GetCondition()); } } ::hybridse::node::NodeManager nm; @@ -422,18 +424,19 @@ std::shared_ptr SQLClusterRouter::GetDeleteRow(cons std::vector condition_vec; std::vector parameter_vec; auto binary_node = dynamic_cast(condition); - *status = NodeAdapter::ExtractCondition(binary_node, col_map, table_info->column_key(), - &condition_vec, ¶meter_vec); + *status = + NodeAdapter::ExtractCondition(binary_node, col_map, table_info->column_key(), &condition_vec, ¶meter_vec); if (!status->IsOK()) { LOG(WARNING) << status->ToString(); return {}; } - auto delete_cache = std::make_shared( - db, table_info->tid(), table_name, condition_vec, parameter_vec); + auto delete_cache = + std::make_shared(db, table_info->tid(), table_name, condition_vec, parameter_vec); SetCache(db, sql, hybridse::vm::kBatchMode, delete_cache); *status = {}; return std::make_shared(delete_cache->GetDatabase(), delete_cache->GetTableName(), - delete_cache->GetDefaultCondition(), delete_cache->GetCondition()); + delete_cache->GetDefaultCondition(), + delete_cache->GetCondition()); } std::shared_ptr SQLClusterRouter::GetInsertRow(const std::string& db, const std::string& sql, @@ -1921,7 +1924,9 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h const auto& args = cmd_node->GetArgs(); return ExecuteShowTableStatus(db, args.size() > 0 ? args[0] : "", status); } - default: { *status = {StatusCode::kCmdError, "fail to execute script with unsupported type"}; } + default: { + *status = {StatusCode::kCmdError, "fail to execute script with unsupported type"}; + } } return {}; } @@ -1941,7 +1946,7 @@ base::Status SQLClusterRouter::HandleSQLCreateTable(hybridse::node::CreatePlanNo std::string db_name = create_node->GetDatabase().empty() ? db : create_node->GetDatabase(); if (db_name.empty()) { return base::Status(base::ReturnCode::kSQLCmdRunError, "ERROR: Please use database first"); - } + } if (create_node->like_clause_ == nullptr) { ::openmldb::nameserver::TableInfo table_info; @@ -1967,8 +1972,8 @@ base::Status SQLClusterRouter::HandleSQLCreateTable(hybridse::node::CreatePlanNo auto dbs = cluster_sdk_->GetAllDbs(); auto it = std::find(dbs.begin(), dbs.end(), db_name); if (it == dbs.end()) { - return base::Status(base::ReturnCode::kSQLCmdRunError, "fail to create, database does not exist!"); - } + return base::Status(base::ReturnCode::kSQLCmdRunError, "fail to create, database does not exist!"); + } LOG(WARNING) << "CREATE TABLE LIKE will run in offline job, please wait."; @@ -3208,8 +3213,8 @@ hybridse::sdk::Status SQLClusterRouter::HandleDelete(const std::string& db, cons std::vector parameter_vec; auto binary_node = dynamic_cast(condition); auto col_map = schema::SchemaAdapter::GetColMap(*table_info); - auto status = NodeAdapter::ExtractCondition(binary_node, col_map, table_info->column_key(), - &condition_vec, ¶meter_vec); + auto status = + NodeAdapter::ExtractCondition(binary_node, col_map, table_info->column_key(), &condition_vec, ¶meter_vec); if (!status.IsOK()) { return status; } @@ -3225,8 +3230,7 @@ hybridse::sdk::Status SQLClusterRouter::HandleDelete(const std::string& db, cons } hybridse::sdk::Status SQLClusterRouter::SendDeleteRequst( - const std::shared_ptr<::openmldb::nameserver::TableInfo>& table_info, - const DeleteOption* option) { + const std::shared_ptr<::openmldb::nameserver::TableInfo>& table_info, const DeleteOption* option) { if (option->index_map.empty()) { std::vector> tablets; if (!cluster_sdk_->GetTablet(table_info->db(), table_info->name(), &tablets)) { @@ -3239,8 +3243,9 @@ hybridse::sdk::Status SQLClusterRouter::SendDeleteRequst( } for (size_t idx = 0; idx < tablets.size(); idx++) { auto tablet_client = tablets.at(idx)->GetClient(); - if (auto status = tablet_client->Delete(table_info->tid(), idx, - option->index_map, option->ts_name, option->start_ts, option->end_ts); !status.OK()) { + if (auto status = tablet_client->Delete(table_info->tid(), idx, option->index_map, option->ts_name, + option->start_ts, option->end_ts); + !status.OK()) { return {StatusCode::kCmdError, status.GetMsg()}; } } @@ -3263,8 +3268,8 @@ hybridse::sdk::Status SQLClusterRouter::SendDeleteRequst( if (!tablet_client) { return {StatusCode::kCmdError, "tablet client is null"}; } - auto ret = tablet_client->Delete(table_info->tid(), kv.first, kv.second, - option->ts_name, option->start_ts, option->end_ts); + auto ret = tablet_client->Delete(table_info->tid(), kv.first, kv.second, option->ts_name, option->start_ts, + option->end_ts); if (!ret.OK()) { return {StatusCode::kCmdError, ret.GetMsg()}; } @@ -3456,9 +3461,26 @@ hybridse::sdk::Status SQLClusterRouter::HandleDeploy(const std::string& db, } } + // bias parse + // range bias: int means xx ms, int & interval will covert to minutes, if == 0, no bias, if has part < 1min, add + // 1min + Bias bias; + iter = deploy_node->Options()->find(RANGE_BIAS_OPTION); + if (iter != deploy_node->Options()->end()) { + if (!bias.SetRange(iter->second)) { + return {StatusCode::kCmdError, "range bias '" + iter->second->GetExprString() + "' is illegal"}; + } + } + iter = deploy_node->Options()->find(ROWS_BIAS_OPTION); + if (iter != deploy_node->Options()->end()) { + if (!bias.SetRows(iter->second)) { + return {StatusCode::kCmdError, "rows bias '" + iter->second->GetExprString() + "' is illegal"}; + } + } + base::MultiDBIndexMap new_index_map; - // merge index, update exists index ttl in table, get new index to create - auto get_index_status = GetNewIndex(table_map, select_sql, db, skip_index_check, &new_index_map); + // merge index, update exists index ttl(add bias) in table, get new index(add bias) to create + auto get_index_status = GetNewIndex(table_map, select_sql, db, skip_index_check, bias, &new_index_map); if (!get_index_status.IsOK()) { return get_index_status; } @@ -3536,7 +3558,7 @@ hybridse::sdk::Status SQLClusterRouter::HandleDeploy(const std::string& db, } hybridse::sdk::Status SQLClusterRouter::GetNewIndex(const TableInfoMap& table_map, const std::string& select_sql, - const std::string& db, bool skip_index_check, + const std::string& db, bool skip_index_check, const Bias& bias, base::MultiDBIndexMap* new_index_map) { // convert info map to desc map base::MultiDBTableDescMap table_desc_map; @@ -3549,6 +3571,7 @@ hybridse::sdk::Status SQLClusterRouter::GetNewIndex(const TableInfoMap& table_ma } auto index_map = base::DDLParser::ExtractIndexes(select_sql, db, table_desc_map); auto ns = cluster_sdk_->GetNsClient(); + // add bias in the loop for (auto& db_index : index_map) { auto& db_name = db_index.first; for (auto& kv : db_index.second) { @@ -3588,13 +3611,18 @@ hybridse::sdk::Status SQLClusterRouter::GetNewIndex(const TableInfoMap& table_ma // the existed ones std::vector<::openmldb::common::ColumnKey> new_indexs; for (auto& column_key : extract_column_keys) { - auto index_id = openmldb::schema::IndexUtil::GetIDStr(column_key); + // add bias on extracted index, 0 means unbounded + auto new_column_key = bias.AddBias(column_key); + LOG(INFO) << "add bias on extracted index " << column_key.ShortDebugString() << " with bias " << bias + << ", result " << new_column_key.ShortDebugString(); + + auto index_id = openmldb::schema::IndexUtil::GetIDStr(new_column_key); auto it = exists_index_map.find(index_id); if (it != exists_index_map.end()) { auto& old_column_key = it->second; common::TTLSt result; // if skip index check, we don't do update ttl, for backward compatibility(server <=0.8.0) - if (base::TTLMerge(old_column_key.ttl(), column_key.ttl(), &result) && !skip_index_check) { + if (base::TTLMerge(old_column_key.ttl(), new_column_key.ttl(), &result) && !skip_index_check) { // update ttl auto ns_ptr = cluster_sdk_->GetNsClient(); std::string err; @@ -3604,10 +3632,10 @@ hybridse::sdk::Status SQLClusterRouter::GetNewIndex(const TableInfoMap& table_ma } } } else { - column_key.set_index_name( + new_column_key.set_index_name( absl::StrCat("INDEX_", cur_index_num + add_index_num, "_", ::baidu::common::timer::now_time())); add_index_num++; - new_indexs.emplace_back(column_key); + new_indexs.emplace_back(new_column_key); } } @@ -4392,5 +4420,65 @@ std::shared_ptr SQLClusterRouter::GetNameServerJobResu return rs; } +common::ColumnKey Bias::AddBias(const common::ColumnKey& index) const { + if (!index.has_ttl()) { + LOG(WARNING) << "index has no ttl, skip bias"; + return index; + } + auto new_index = index; + auto ttl = new_index.mutable_ttl(); + if (ttl->ttl_type() != type::TTLType::kLatestTime) { + // add bias to ttl when abs / abs||. / abs&&. + if (range_inf) { + ttl->set_abs_ttl(0); + } else if (ttl->abs_ttl() > 0) { + // in ttl, 0 means unlimited, no need to add bias + ttl->set_abs_ttl(ttl->abs_ttl() + range_bias); + } + } + if (ttl->ttl_type() != type::TTLType::kAbsoluteTime) { + // add bias to ttl when lat / .||lat / .&&lat + if (rows_inf) { + ttl->set_lat_ttl(0); + } else if (ttl->lat_ttl() > 0) { + // in ttl, 0 means unlimited, no need to add bias + ttl->set_lat_ttl(ttl->lat_ttl() + rows_bias); + } + } + return new_index; +} + +bool Bias::Set(const hybridse::node::ConstNode* node, bool is_row_type) { + if (node == nullptr) { + return false; + } + // both range and rows can be int & string 'inf' + if (node->IsNumber()) { + SetBias(is_row_type, node->GetAsInt64()); + return true; + } + auto str = node->GetAsString(); + if (absl::EqualsIgnoreCase(str, "inf")) { + SetInf(is_row_type); + return true; + } + // row bias shouldn't be interval, rang bias can be 0d, 0h, ... + if (is_row_type) { + return false; + } + auto v = node->GetMillis(); + if (v == -1) { + return false; + } + // abs time should be min, 0 means no bias, if has part which < 1 min, add 1 min + SetBias(is_row_type, v); + return true; +} + +std::ostream& operator<<(std::ostream& os, const Bias& bias) { // NOLINT + os << "Bias[" << bias.ToString() << "]"; + return os; +} + } // namespace sdk } // namespace openmldb diff --git a/src/sdk/sql_cluster_router.h b/src/sdk/sql_cluster_router.h index 8bb5796240e..ae72a32edbb 100644 --- a/src/sdk/sql_cluster_router.h +++ b/src/sdk/sql_cluster_router.h @@ -47,6 +47,8 @@ constexpr const char* FORMAT_STRING_KEY = "!%$FORMAT_STRING_KEY"; class DeleteOption; using TableInfoMap = std::map>; +class Bias; + class SQLClusterRouter : public SQLRouter { public: using TableStatusMap = @@ -339,7 +341,7 @@ class SQLClusterRouter : public SQLRouter { const hybridse::node::ExprNode* condition); hybridse::sdk::Status SendDeleteRequst(const std::shared_ptr& table_info, - const DeleteOption* option); + const DeleteOption* option); hybridse::sdk::Status HandleIndex(const std::string& db, const std::set>& table_pair, @@ -347,7 +349,7 @@ class SQLClusterRouter : public SQLRouter { // update existing index, return index need to be created // NOTE: table index may be changed, can't revert hybridse::sdk::Status GetNewIndex(const TableInfoMap& table_map, const std::string& select_sql, - const std::string& db, bool skip_index_check, + const std::string& db, bool skip_index_check, const Bias& bias, base::MultiDBIndexMap* new_index_map); hybridse::sdk::Status AddNewIndex(const base::MultiDBIndexMap& new_index_map); @@ -376,9 +378,9 @@ class SQLClusterRouter : public SQLRouter { std::shared_ptr GetJobResultSet(int job_id, ::hybridse::sdk::Status* status); std::shared_ptr GetJobResultSet(::hybridse::sdk::Status* status); std::shared_ptr GetNameServerJobResult(const std::string& like_pattern, - ::hybridse::sdk::Status* status); + ::hybridse::sdk::Status* status); std::shared_ptr GetTaskManagerJobResult(const std::string& like_pattern, - ::hybridse::sdk::Status* status); + ::hybridse::sdk::Status* status); bool CheckTableStatus(const std::string& db, const std::string& table_name, uint32_t tid, const nameserver::TablePartition& partition_info, uint32_t replica_num, @@ -397,5 +399,45 @@ class SQLClusterRouter : public SQLRouter { ::openmldb::base::Random rand_; }; +class Bias { + public: + // If get failed, return false and won't change bias. Check negative bias value for your own logic + bool SetRange(const hybridse::node::ConstNode* node) { return Set(node, false); } + bool SetRows(const hybridse::node::ConstNode* node) { return Set(node, true); } + common::ColumnKey AddBias(const common::ColumnKey& index) const; + std::string ToString() const { + std::stringstream ss; + ss << "range_bias: " << range_bias << ", range_inf: " << range_inf << ", rows_bias: " << rows_bias + << ", rows_inf: " << rows_inf; + return ss.str(); + } + + private: + bool Set(const hybridse::node::ConstNode* node, bool is_row_type); + // if range type, v means ms and convert to min + void SetBias(bool is_row_type, int64_t v) { + if (is_row_type) { + rows_bias = v; + } else { + range_bias = v / 60000 + (v % 60000 ? 1 : 0); + } + } + void SetInf(bool is_row_type) { + if (is_row_type) { + rows_inf = true; + } else { + range_inf = true; + } + } + + private: + int64_t range_bias = 0; + bool range_inf = false; + int64_t rows_bias = 0; + bool rows_inf = false; +}; + +std::ostream& operator<<(std::ostream& os, const Bias& bias); // NO LINT + } // namespace openmldb::sdk #endif // SRC_SDK_SQL_CLUSTER_ROUTER_H_ From 5ba7a416fcb4fff98e87b605ddd05b7df7586689 Mon Sep 17 00:00:00 2001 From: dl239 Date: Mon, 28 Aug 2023 14:44:03 +0800 Subject: [PATCH 033/111] docs: add notice (#3453) --- docs/zh/openmldb_sql/index.rst | 3 ++- docs/zh/openmldb_sql/notice.md | 19 +++++++++++++++++++ 2 files changed, 21 insertions(+), 1 deletion(-) create mode 100644 docs/zh/openmldb_sql/notice.md diff --git a/docs/zh/openmldb_sql/index.rst b/docs/zh/openmldb_sql/index.rst index 3f0f68d3768..7d00e9ed532 100644 --- a/docs/zh/openmldb_sql/index.rst +++ b/docs/zh/openmldb_sql/index.rst @@ -14,5 +14,6 @@ OpenMLDB SQL dml/index ddl/index deployment_manage/index - task_manage/index + task_manage/index udf_develop_guide + notice diff --git a/docs/zh/openmldb_sql/notice.md b/docs/zh/openmldb_sql/notice.md new file mode 100644 index 00000000000..9c1c660bf23 --- /dev/null +++ b/docs/zh/openmldb_sql/notice.md @@ -0,0 +1,19 @@ +# SQL 命令执行注意的点 + +部分 SQL 命令的执行存在一定的危险性,或者有一些特别需要注意的点以避免误操作。本文对相关命令做了总结,如果你依然对其中的操作有疑问,欢迎在我们[社区渠道](https://github.com/4paradigm/OpenMLDB#11-community)进行交流,以避免相关操作给你的开发和生产环境带来损失。 + +| SQL 命令 | 注意点 | +| ------------- | --------------------------------------------- | +| CREATE TABLE | 1. 在建表语句中如果没有指定索引,默认会自动创建一个`absolute 0`的索引。这个索引下的数据永不过期,可能会占用大量内存
2. 磁盘表`absandlat`和`absorlat`类型没有过期删除 +| DROP TABLE | 1. 删除表默认是异步操作,执行完成后,异步删除表中的数据
2. 如果有分片在做snapshot, 会删除失败。可能存在部分分片删除部分没有删除的情况
3. 删除时默认会把数据目录放到recycle目录下。tablet的配置文件中`recycle_bin_enabled`参数可以配置是否要放到recycle, 默认是开启的
4. 由于内存碎片问题,释放的内存不一定完全释放给操作系统 +| INSERT | 如果返回失败,可能有一部分数据已经插入进去 +| DELETE | 1. 删除的数据不会立马从内存中物理删除,需要等一个过期删除时间间隔(即参数 `gc_interval`)
2. 如果设置了长窗口,不会更新预聚合表里的数据 +| CREATE INDEX | 1. 创建索引是一个异步操作,如果表里有数据需要等一段时间 `desc` 命令才能显示出来
2. 在创建索引的过程中如果有写操作,那么可能会有部分新写入的数据在新加的索引上查询不出来
3. 磁盘表不支持创建索引 +| DROP INDEX | 1. 删除一个索引之后,如果要再重新创建相同的索引需要等两个过期删除时间间隔(及参数 `gc_interval`)
2. 执行该命令后,内存中的索引并没有被真正的马上删除,需要等两个过期删除时间间隔才会在内存中真正被执行删除动作
3. 磁盘表不支持删除索引 +| DEPLOY | 1. DEPLOY 命令可能会修改相关表的TTL,执行DEPLOY前导入的数据可能在新TTL生效前被淘汰,新的TTL生效时间为2个`gc_interval`
2. 在deployment关联的表中,如果有磁盘表需要添加索引,那么部署会失败,可能有部分索引已经添加成功 +| DROP DEPLOYMENT | 1. 不会清理自动创建的索引
2. 如果指定了长窗口,删除deployment不会清理预聚合表 +| DROP FUNCTION | 如果有正在执行的deployment用到此函数,可能会执行错误或者程序崩溃 +| SHOW COMPONENTS | 1. 结果不包含 API Server
2. 结果不包含 TaskManager `standby` 状态 +| SHOW JOBS | 1. 默认显示的是TaskManager的job。如果希望显示 NameServer 的jobs,使用命令 `show jobs from nameserver`;如果希望显示 TaskManager 的 jobs,使用命令 `show jobs from taskmanager`
2. NameServer重启后,没有恢复和展示已完成和已取消的job +| SHOW JOB | 只能显示TaskManager里的job, 不支持显示NameServer里的job +| STOP JOB | 只能停止TaskManager里的job, 不支持停止NameServer里的job From 8222120fbdcffb1b211931429f2bdb517b0c57fd Mon Sep 17 00:00:00 2001 From: dl239 Date: Mon, 28 Aug 2023 18:10:09 +0800 Subject: [PATCH 034/111] docs: add the external link of online engine deployment on k8s (#3462) --- docs/zh/deploy/index.rst | 1 + 1 file changed, 1 insertion(+) diff --git a/docs/zh/deploy/index.rst b/docs/zh/deploy/index.rst index a86f5ee69e9..29007be2d86 100644 --- a/docs/zh/deploy/index.rst +++ b/docs/zh/deploy/index.rst @@ -10,3 +10,4 @@ compile integrate_hadoop offline_integrate_kubernetes + [Alpha]在线引擎基于 Kubernetes 部署 From 1ea8e5811d920efe34cce3e315406116d68d54da Mon Sep 17 00:00:00 2001 From: dl239 Date: Tue, 29 Aug 2023 09:22:56 +0800 Subject: [PATCH 035/111] feat: drop success if pid does not exist (#3427) --- docs/en/deploy/conf.md | 2 ++ docs/zh/deploy/conf.md | 2 ++ release/conf/tablet.flags.template | 2 ++ src/client/tablet_client.cc | 2 +- src/nameserver/name_server_impl.cc | 8 ++++---- 5 files changed, 11 insertions(+), 5 deletions(-) diff --git a/docs/en/deploy/conf.md b/docs/en/deploy/conf.md index 6857cbdfd19..11667427247 100644 --- a/docs/en/deploy/conf.md +++ b/docs/en/deploy/conf.md @@ -135,6 +135,8 @@ --ssd_root_path=./db_ssd #Configure the data recycle bin directory, where the data of the drop table will be placed --recycle_bin_ssd_root_path=./recycle_ssd +# Configure whether to enable recycle +#--recycle_bin_enabled=true # snapshot conf # Configure the time to do snapshots, the time of day. For example, 23 means taking a snapshot at 23 o'clock every day. diff --git a/docs/zh/deploy/conf.md b/docs/zh/deploy/conf.md index f9283a3b748..ef05f0c8dc9 100644 --- a/docs/zh/deploy/conf.md +++ b/docs/zh/deploy/conf.md @@ -138,6 +138,8 @@ --ssd_root_path=./db_ssd # 配置数据回收站目录,drop表的数据就会放在这里 --recycle_bin_ssd_root_path=./recycle_ssd +# 配置是否开启回收站, 如果开启drop table后的数据会放到recycle目录里 +#--recycle_bin_enabled=true # snapshot conf # 配置做snapshot的时间,配置为一天中的几点。如23就表示每天23点做snapshot diff --git a/release/conf/tablet.flags.template b/release/conf/tablet.flags.template index c5e2e0add58..3d126d74123 100644 --- a/release/conf/tablet.flags.template +++ b/release/conf/tablet.flags.template @@ -48,6 +48,8 @@ #--ssd_root_path=./db_ssd # 配置数据回收站目录,drop表的数据就会放在这里 #--recycle_bin_ssd_root_path=./recycle_ssd +# 配置是否开启回收站, 如果开启drop table后的数据会放到recycle目录里 +#--recycle_bin_enabled=true # snapshot conf # 每天23点做snapshot diff --git a/src/client/tablet_client.cc b/src/client/tablet_client.cc index e1d3ef9fa28..aca61c6cad9 100644 --- a/src/client/tablet_client.cc +++ b/src/client/tablet_client.cc @@ -635,7 +635,7 @@ bool TabletClient::DropTable(uint32_t id, uint32_t pid, std::shared_ptrDropTable(tid, pkv.first)) { PDLOG(WARNING, "drop table failed. tid[%u] pid[%u] endpoint[%s]", tid, pkv.first, kv.first.c_str()); - code = 313; // if drop table failed, return error + code = base::ReturnCode::kDropTableError; // if drop table failed, return error continue; } PDLOG(INFO, "drop table. tid[%u] pid[%u] endpoint[%s]", tid, pkv.first, kv.first.c_str()); @@ -2993,7 +2993,7 @@ void NameServerImpl::DropTableInternel(const DropTableRequest& request, GeneralR if (!request.db().empty()) { if (IsClusterMode() && !zk_client_->DeleteNode(zk_path_.db_table_data_path_ + "/" + std::to_string(tid))) { PDLOG(WARNING, "delete db table node[%s/%u] failed!", zk_path_.db_table_data_path_.c_str(), tid); - code = 304; + code = base::ReturnCode::kSetZkFailed; } else { PDLOG(INFO, "delete table node[%s/%u]", zk_path_.db_table_data_path_.c_str(), tid); db_table_info_[db].erase(name); @@ -3001,7 +3001,7 @@ void NameServerImpl::DropTableInternel(const DropTableRequest& request, GeneralR } else { if (IsClusterMode() && !zk_client_->DeleteNode(zk_path_.table_data_path_ + "/" + name)) { PDLOG(WARNING, "delete table node[%s/%s] failed!", zk_path_.table_data_path_.c_str(), name.c_str()); - code = 304; + code = base::ReturnCode::kSetZkFailed; } else { PDLOG(INFO, "delete table node[%s/%s]", zk_path_.table_data_path_.c_str(), name.c_str()); table_info_.erase(name); @@ -3017,7 +3017,7 @@ void NameServerImpl::DropTableInternel(const DropTableRequest& request, GeneralR FLAGS_name_server_task_concurrency_for_replica_cluster) < 0) { PDLOG(WARNING, "create DropTableRemoteOP for replica cluster failed, table_name: %s, alias: %s", name.c_str(), kv.first.c_str()); - code = 505; + code = base::ReturnCode::kCreateDroptableremoteopForReplicaClusterFailed; continue; } } From badf7ab2cfd7d7e2d7df45769417596e0117e446 Mon Sep 17 00:00:00 2001 From: "qiyuan.liu" <1043276694@qq.com> Date: Wed, 30 Aug 2023 17:28:37 +0800 Subject: [PATCH 036/111] remove format_config.sh sudo request (#3473) --- test/steps/format_config.sh | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/test/steps/format_config.sh b/test/steps/format_config.sh index 9700d330974..62d99ba99b7 100755 --- a/test/steps/format_config.sh +++ b/test/steps/format_config.sh @@ -14,14 +14,14 @@ dirName="${jobName}-${version}-${curTime}" #set Deploy Host and Ports Hosts=(node-3 node-4 node-1) -AvaNode1Ports=$(ssh "${Hosts[0]}" "comm -23 <(seq $portFrom $portTo | sort) <(sudo ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 8") -AvaNode2Ports=$(ssh "${Hosts[1]}" "comm -23 <(seq $portFrom $portTo | sort) <(sudo ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 2") -AvaNode3Ports=$(ssh "${Hosts[2]}" "comm -23 <(seq $portFrom $portTo | sort) <(sudo ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 1") +AvaNode1Ports=$(ssh "${Hosts[0]}" "comm -23 <(seq $portFrom $portTo | sort) <(/usr/sbin/ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 8") +AvaNode2Ports=$(ssh "${Hosts[1]}" "comm -23 <(seq $portFrom $portTo | sort) <(/usr/sbin/ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 2") +AvaNode3Ports=$(ssh "${Hosts[2]}" "comm -23 <(seq $portFrom $portTo | sort) <(/usr/sbin/ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 1") taskmanagerHost=$(hostname | awk -F"." '{print $1}' ) -taskmanagerPort=$(ssh "${taskmanagerHost}" "comm -23 <(seq $portFrom $portTo | sort) <(sudo ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 1") +taskmanagerPort=$(ssh "${taskmanagerHost}" "comm -23 <(seq $portFrom $portTo | sort) <(/usr/sbin/ss -Htan | awk '{print $4}' | cut -d':' -f2 | sort -u) | shuf | head -n 1") tablet1Port=$(echo "$AvaNode1Ports" | awk 'BEGIN{ RS="";FS="\n"}{print $1}') From bc00d674468ad96f4b0b5aaebad716e618974000 Mon Sep 17 00:00:00 2001 From: dl239 Date: Thu, 31 Aug 2023 16:12:01 +0800 Subject: [PATCH 037/111] fix: run addindex failed (#3393) --- .../sql/ddl/CREATE_INDEX_STATEMENT.md | 8 +-- .../sql/ddl/CREATE_TABLE_STATEMENT.md | 2 +- .../ddl/CREATE_INDEX_STATEMENT.md | 10 ++- .../ddl/CREATE_TABLE_STATEMENT.md | 2 +- src/base/status.h | 2 + src/nameserver/name_server_impl.cc | 70 +++++++++++++++---- src/nameserver/name_server_impl.h | 2 + src/schema/index_util.cc | 30 ++++++-- src/schema/index_util.h | 2 + src/sdk/sql_cluster_router.cc | 5 +- src/sdk/sql_cluster_test.cc | 54 +++++++++----- .../ha_cases/test_addindex.py | 5 ++ 12 files changed, 142 insertions(+), 50 deletions(-) diff --git a/docs/en/reference/sql/ddl/CREATE_INDEX_STATEMENT.md b/docs/en/reference/sql/ddl/CREATE_INDEX_STATEMENT.md index 6222b98942b..051c1a9e3ba 100644 --- a/docs/en/reference/sql/ddl/CREATE_INDEX_STATEMENT.md +++ b/docs/en/reference/sql/ddl/CREATE_INDEX_STATEMENT.md @@ -1,7 +1,6 @@ # CREATE INDEX -The `CREATE INDEX` statement is used to create a new index on existing table. If there is data in the table, data will be loaded asynchronously. -The job status can be checked through the `showopstatus` command of `ns_client`, see [Operations in CLI](../../../maintain/cli.md#showopstatus). +The `CREATE INDEX` statement is used to create a new index on existing table. Running `CREATE INDEX` will initiates an asynchronous job, and you can check the status of the job by executing `SHOW JOBS FROM NAMESERVER`. ## Syntax @@ -48,7 +47,8 @@ CREATE INDEX index2 ON t5 (col2); -- SUCCEED ``` ```{note} -If `OPTIONS` is not provided, the SQL with the created index cannot be deployed online, since the index doesn't have TS (timestamp). +1. If `OPTIONS` is not provided, the SQL with the created index cannot be deployed online, since the index doesn't have TS (timestamp). +2. The data type of `TS` column should be BigInt or Timestamp. ``` We can also set `TS` column as below: ```SQL @@ -59,4 +59,4 @@ Please refer [here](./CREATE_TABLE_STATEMENT.md) for more details about `TTL` an ## Related SQL -[DROP INDEX](./DROP_INDEX_STATEMENT.md) \ No newline at end of file +[DROP INDEX](./DROP_INDEX_STATEMENT.md) diff --git a/docs/en/reference/sql/ddl/CREATE_TABLE_STATEMENT.md b/docs/en/reference/sql/ddl/CREATE_TABLE_STATEMENT.md index 7205343efb4..a0d11d90657 100644 --- a/docs/en/reference/sql/ddl/CREATE_TABLE_STATEMENT.md +++ b/docs/en/reference/sql/ddl/CREATE_TABLE_STATEMENT.md @@ -226,7 +226,7 @@ The index key must be configured, and other configuration items are optional. Th | Configuration Item | Note | Expression | Example | |------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------| | `KEY` | It defines the index column (required). OpenMLDB supports single-column indexes as well as joint indexes. When `KEY`=one column, a single-column index is configured. When `KEY`=multiple columns, the joint index of these columns is configured: several columns are concatenated into a new string as an index in order. | Single-column index: `ColumnName`
Joint index:
`(ColumnName (, ColumnName)* ) ` | Single-column index: `INDEX(KEY=col1)`
Joint index: `INDEX(KEY=(col1, col2))` | -| `TS` | It defines the index time column (optional). Data on the same index will be sorted by the index time column. When `TS` is not explicitly configured, the timestamp of data insertion is used as the index time. | `ColumnName` | `INDEX(KEY=col1, TS=std_time)`。 The index column is col1, and the data rows with the same col1 value are sorted by std_time. | +| `TS` | It defines the index time column (optional). Data on the same index will be sorted by the index time column. When `TS` is not explicitly configured, the timestamp of data insertion is used as the index time. The data type of time column should be BigInt or Timestamp | `ColumnName` | `INDEX(KEY=col1, TS=std_time)`。 The index column is col1, and the data rows with the same col1 value are sorted by std_time. | | `TTL_TYPE` | It defines the elimination rules (optional). Including four types. When `TTL_TYPE` is not explicitly configured, the `ABSOLUTE` expiration configuration is used by default. | Supported expr: `ABSOLUTE`
`LATEST`
`ABSORLAT`
`ABSANDLAT`。 | For specific usage, please refer to **Configuration Rules for TTL and TTL_TYP** below. | | `TTL` | It defines the maximum survival time/number. Different TTL_TYPEs determines different `TTL` configuration methods. When `TTL` is not explicitly configured, `TTL=0` which means OpenMLDB will not evict records. | Supported expr: `int_literal`
`interval_literal`
`( interval_literal , int_literal )` | For specific usage, please refer to "Configuration Rules for TTL and TTL_TYPE" below. | diff --git a/docs/zh/openmldb_sql/ddl/CREATE_INDEX_STATEMENT.md b/docs/zh/openmldb_sql/ddl/CREATE_INDEX_STATEMENT.md index 692f4fc7d6d..dd8813f0afa 100644 --- a/docs/zh/openmldb_sql/ddl/CREATE_INDEX_STATEMENT.md +++ b/docs/zh/openmldb_sql/ddl/CREATE_INDEX_STATEMENT.md @@ -1,7 +1,6 @@ # CREATE INDEX -`CREATE INDEX` 语句用来创建索引。 如果表里有数据,添加索引会发起异步任务来加载数据。 -通过`ns_client`中的`showopstatus`命令可以查看任务状态,详见[运维 CLI](../../maintain/cli.md#showopstatus)。 +`CREATE INDEX` 语句用来创建索引。添加索引会发起异步任务来加载数据, 可以通过执行`SHOW JOBS FROM NAMESERVER`来查看任务状态 ## 语法 @@ -40,15 +39,14 @@ OptionEntry ::= ``` - - ## **示例** ```SQL CREATE INDEX index2 ON t5 (col2); -- SUCCEED ``` ```{note} -如果不指定Options, 创建的索引就没有指定`TS`列,因此不能用在需要上线的SQL中。 +1. 如果不指定Options, 创建的索引就没有指定`TS`列,因此不能用在需要上线的SQL中。 +2. 指定`TS`列的类型只能是BitInt或者Timestamp ``` 我们可以通过类似如下命令在创建索引时指定`TS`列: ```SQL @@ -59,4 +57,4 @@ CREATE INDEX index3 ON t5 (col3) OPTIONS (ts=ts1, ttl_type=absolute, ttl=30d); ## 相关SQL -[DROP INDEX](./DROP_INDEX_STATEMENT.md) \ No newline at end of file +[DROP INDEX](./DROP_INDEX_STATEMENT.md) diff --git a/docs/zh/openmldb_sql/ddl/CREATE_TABLE_STATEMENT.md b/docs/zh/openmldb_sql/ddl/CREATE_TABLE_STATEMENT.md index 3c6c4444241..1dffc9d4cae 100644 --- a/docs/zh/openmldb_sql/ddl/CREATE_TABLE_STATEMENT.md +++ b/docs/zh/openmldb_sql/ddl/CREATE_TABLE_STATEMENT.md @@ -223,7 +223,7 @@ IndexOption ::= | 配置项 | 描述 | expr | 用法示例 | |------------|---------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------| | `KEY` | 索引列(必选)。OpenMLDB支持单列索引,也支持联合索引。当`KEY`后只有一列时,仅在该列上建立索引。当`KEY`后有多列时,建立这几列的联合索引:将多列按顺序拼接成一个字符串作为索引。 | 支持单列索引:`ColumnName`
或联合索引:
`(ColumnName (, ColumnName)* ) ` | 单列索引:`INDEX(KEY=col1)`
联合索引:`INDEX(KEY=(col1, col2))` | -| `TS` | 索引时间列(可选)。同一个索引上的数据将按照时间索引列排序。当不显式配置`TS`时,使用数据插入的时间戳作为索引时间。 | `ColumnName` | `INDEX(KEY=col1, TS=std_time)`。索引列为col1,col1相同的数据行按std_time排序。 | +| `TS` | 索引时间列(可选)。同一个索引上的数据将按照时间索引列排序。当不显式配置`TS`时,使用数据插入的时间戳作为索引时间。时间列的类型只能为BigInt或者Timestamp | `ColumnName` | `INDEX(KEY=col1, TS=std_time)`。索引列为col1,col1相同的数据行按std_time排序。 | | `TTL_TYPE` | 淘汰规则(可选)。包括四种类型,当不显式配置`TTL_TYPE`时,默认使用`ABSOLUTE`过期配置。 | 支持的expr如下:`ABSOLUTE`
`LATEST`
`ABSORLAT`
`ABSANDLAT`。 | 具体用法可以参考下文“TTL和TTL_TYPE的配置细则” | | `TTL` | 最大存活时间/条数(可选)。依赖于`TTL_TYPE`,不同的`TTL_TYPE`有不同的`TTL` 配置方式。当不显式配置`TTL`时,`TTL=0`,表示不设置淘汰规则,OpenMLDB将不会淘汰记录。 | 支持数值:`int_literal`
或数值带时间单位(`S,M,H,D`):`interval_literal`
或元组形式:`( interval_literal , int_literal )` |具体用法可以参考下文“TTL和TTL_TYPE的配置细则” | diff --git a/src/base/status.h b/src/base/status.h index 803231378ef..1e1d5cc6f4d 100644 --- a/src/base/status.h +++ b/src/base/status.h @@ -88,6 +88,7 @@ enum ReturnCode { kCreateFunctionFailed = 159, kExceedMaxMemory = 160, kInvalidArgs = 161, + kCheckIndexFailed = 162, kNameserverIsNotLeader = 300, kAutoFailoverIsEnabled = 301, kEndpointIsNotExist = 302, @@ -122,6 +123,7 @@ enum ReturnCode { kCheckParameterFailed = 331, kCreateProcedureFailedOnTablet = 332, kCreateFunctionFailedOnTablet = 333, + kOPAlreadyExists = 317, kReplicaClusterAliasDuplicate = 400, kConnectRelicaClusterZkFailed = 401, kNotSameReplicaName = 402, diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index 622f74b959f..1dd5acf58ff 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -8266,14 +8266,13 @@ void NameServerImpl::DeleteIndex(RpcController* controller, const DeleteIndexReq tablet_client_map.insert(std::make_pair(kv.second->client_->GetEndpoint(), kv.second->client_)); } } - for (int idx = 0; idx < table_info->table_partition_size(); idx++) { - for (int meta_idx = 0; meta_idx < table_info->table_partition(idx).partition_meta_size(); meta_idx++) { - std::string endpoint = table_info->table_partition(idx).partition_meta(meta_idx).endpoint(); - if (!table_info->table_partition(idx).partition_meta(meta_idx).is_alive()) { + for (const auto& table_partition : table_info->table_partition()) { + for (const auto& partition_meta : table_partition.partition_meta()) { + const std::string& endpoint = partition_meta.endpoint(); + if (!partition_meta.is_alive()) { response->set_code(::openmldb::base::ReturnCode::kTableHasNoAliveLeaderPartition); response->set_msg("partition is not alive!"); - PDLOG(WARNING, "partition[%s][%d] is not alive!", endpoint.c_str(), - table_info->table_partition(idx).pid()); + PDLOG(WARNING, "partition[%s][%d] is not alive!", endpoint.c_str(), table_partition.pid()); return; } if (tablet_client_map.find(endpoint) == tablet_client_map.end()) { @@ -8285,14 +8284,14 @@ void NameServerImpl::DeleteIndex(RpcController* controller, const DeleteIndexReq } } bool delete_failed = false; - for (int idx = 0; idx < table_info->table_partition_size(); idx++) { - for (int meta_idx = 0; meta_idx < table_info->table_partition(idx).partition_meta_size(); meta_idx++) { - std::string endpoint = table_info->table_partition(idx).partition_meta(meta_idx).endpoint(); + for (const auto& table_partition : table_info->table_partition()) { + for (const auto& partition_meta : table_partition.partition_meta()) { + const std::string& endpoint = partition_meta.endpoint(); std::string msg; - if (!tablet_client_map[endpoint]->DeleteIndex(table_info->tid(), table_info->table_partition(idx).pid(), + if (!tablet_client_map[endpoint]->DeleteIndex(table_info->tid(), table_partition.pid(), request->idx_name(), &msg)) { - PDLOG(WARNING, "delete index failed. name %s pid %u endpoint %s msg %s", request->table_name().c_str(), - table_info->table_partition(idx).pid(), endpoint.c_str(), msg.c_str()); + PDLOG(WARNING, "delete index failed. name %s pid %u endpoint %s msg %s", + request->table_name().c_str(), table_partition.pid(), endpoint.c_str(), msg.c_str()); delete_failed = true; } } @@ -8519,8 +8518,21 @@ void NameServerImpl::AddIndex(RpcController* controller, const AddIndexRequest* openmldb::common::VersionPair* pair = table_info->add_schema_versions(); pair->CopyFrom(new_pair); } + if (auto status = schema::IndexUtil::CheckIndex(col_map, + schema::IndexUtil::Convert2PB(column_key_vec)); !status.OK()) { + base::SetResponseStatus(ReturnCode::kCheckIndexFailed, status.msg, response); + LOG(WARNING) << status.msg; + return; + } if (IsClusterMode() && !request->skip_load_data()) { std::lock_guard lock(mu_); + if (IsExistActiveOp(db, name, api::kAddIndexOP)) { + LOG(WARNING) << "create AddIndexOP failed. there is already a task running. db " + << db << " table " << name; + base::SetResponseStatus(ReturnCode::kOPAlreadyExists, + "there is already a task running", response); + return; + } auto status = CreateAddIndexOP(name, db, column_key_vec); if (!status.OK()) { LOG(WARNING) << "create AddIndexOP failed, table " << name << " msg " << status.GetMsg(); @@ -10475,8 +10487,14 @@ void NameServerImpl::DeploySQL(RpcController* controller, const DeploySQLRequest } } } - uint64_t op_id = 0; std::lock_guard lock(mu_); + if (IsExistActiveOp(db, "", api::OPType::kDeployOP)) { + LOG(WARNING) << "create DeployOP failed. there is already a task running in db " << db; + base::SetResponseStatus(ReturnCode::kOPAlreadyExists, + "there is already a task running", response); + return; + } + uint64_t op_id = 0; auto status = CreateDeployOP(*request, &op_id); if (!status.OK()) { PDLOG(WARNING, "%s", status.GetMsg().c_str()); @@ -10492,7 +10510,7 @@ base::Status NameServerImpl::CreateDeployOP(const DeploySQLRequest& request, uin std::string value; auto op_type = api::OPType::kDeployOP; if (CreateOPData(op_type, value, op_data, sp_info.main_table(), sp_info.db_name(), 0) < 0) { - return {-1, absl::StrCat("create AddIndexOP data error. deploy name ", deploy_name)}; + return {-1, absl::StrCat("create DeployOP data error. deploy name ", deploy_name)}; } auto task = CreateTask(op_data->GetOpId(), op_type, request.index()); if (!task) { @@ -10512,5 +10530,29 @@ base::Status NameServerImpl::CreateDeployOP(const DeploySQLRequest& request, uin return {}; } +bool NameServerImpl::IsExistActiveOp(const std::string& db, const std::string& name, api::OPType op_type) { + for (const auto& op_list : task_vec_) { + if (op_list.empty()) { + continue; + } + for (const auto& op_data : op_list) { + if (op_data->op_info_.op_type() != op_type) { + continue; + } + if (!db.empty() && op_data->op_info_.db() != db) { + continue; + } + if (!name.empty() && op_data->op_info_.name() != name) { + continue; + } + if (op_data->op_info_.task_status() == api::TaskStatus::kInited || + op_data->op_info_.task_status() == api::TaskStatus::kDoing) { + return true; + } + } + } + return false; +} + } // namespace nameserver } // namespace openmldb diff --git a/src/nameserver/name_server_impl.h b/src/nameserver/name_server_impl.h index d8fc2245401..d7e030c0eab 100644 --- a/src/nameserver/name_server_impl.h +++ b/src/nameserver/name_server_impl.h @@ -682,6 +682,8 @@ class NameServerImpl : public NameServer { bool IsExistDataBase(const std::string& db); + bool IsExistActiveOp(const std::string& db, const std::string& name, api::OPType op_type); + private: std::mutex mu_; Tablets tablets_; diff --git a/src/schema/index_util.cc b/src/schema/index_util.cc index a9a8b2596b2..81ed5cd5177 100644 --- a/src/schema/index_util.cc +++ b/src/schema/index_util.cc @@ -50,11 +50,14 @@ base::Status IndexUtil::CheckIndex(const std::mapsecond.data_type() == ::openmldb::type::kFloat) - || (iter->second.data_type() == ::openmldb::type::kDouble)))) { - return {base::ReturnCode::kError, - "float or double type column can not be index, column is: " + column_key.index_name()}; + if (iter != column_map.end()) { + if (iter->second.data_type() == ::openmldb::type::kFloat + || iter->second.data_type() == ::openmldb::type::kDouble) { + return {base::ReturnCode::kError, + "float or double type column can not be index, column is: " + column_key.index_name()}; + } + } else { + return {base::ReturnCode::kError, "can not find col in schema. col: " + column_name}; } } if (!has_iter) { @@ -67,6 +70,15 @@ base::Status IndexUtil::CheckIndex(const std::mapsecond.data_type() != ::openmldb::type::kBigInt + && iter->second.data_type() != ::openmldb::type::kTimestamp) { + return {base::ReturnCode::kError, + "ts column type should be bigint or timestamp, column is: " + column_key.ts_name()}; + } + } if (column_key.has_ttl()) { if (!CheckTTL(column_key.ttl())) { return {base::ReturnCode::kError, "ttl check failed"}; @@ -177,6 +189,14 @@ std::vector<::openmldb::common::ColumnKey> IndexUtil::Convert2Vector(const PBInd return vec; } +PBIndex IndexUtil::Convert2PB(const std::vector<::openmldb::common::ColumnKey>& index) { + PBIndex pb_index; + for (const auto& column_key : index) { + pb_index.Add()->CopyFrom(column_key); + } + return pb_index; +} + std::string IndexUtil::GetIDStr(const ::openmldb::common::ColumnKey& column_key) { std::string id_str; for (const auto& cur_col : column_key.col_name()) { diff --git a/src/schema/index_util.h b/src/schema/index_util.h index c5f6f90429d..465abac1ec1 100644 --- a/src/schema/index_util.h +++ b/src/schema/index_util.h @@ -42,6 +42,8 @@ class IndexUtil { static std::vector<::openmldb::common::ColumnKey> Convert2Vector(const PBIndex& index); + static PBIndex Convert2PB(const std::vector<::openmldb::common::ColumnKey>& index); + static base::Status CheckUnique(const PBIndex& index); static bool CheckTTL(const ::openmldb::common::TTLSt& ttl); diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 89575f02a58..7e593d8b359 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -2504,9 +2504,10 @@ std::shared_ptr SQLClusterRouter::ExecuteSQL( } column_key.set_index_name(create_index_node->index_name_); if (ns_ptr->AddIndex(db_name, create_index_node->table_name_, column_key, nullptr, msg)) { - *status = {}; + *status = {::hybridse::common::StatusCode::kOk, + "AddIndex is an asynchronous job. Run 'SHOW JOBS FROM NAMESERVER' to see the job status"}; } else { - SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "ns add index failed"); + SET_STATUS_AND_WARN(status, StatusCode::kCmdError, absl::StrCat("ns add index failed. msg: ", msg)); } return {}; } diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index 321be553905..f8cccac1832 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -260,23 +260,49 @@ TEST_F(SQLClusterDDLTest, CreateTableWithDatabase) { TEST_F(SQLClusterDDLTest, CreateTableWithDatabaseWrongDDL) { std::string name = "test" + GenRand(); ::hybridse::sdk::Status status; - std::string ddl; + std::string db = "db" + GenRand(); + ASSERT_TRUE(router->CreateDB(db, &status)); // create table db2.name when db2 not exist + std::string ddl; ddl = "create table db2." + name + - "(" - "col1 int, col2 bigint, col3 string," + "(col1 int, col2 bigint, col3 string," "index(key=col3, ts=col2));"; ASSERT_FALSE(router->ExecuteDDL(db, ddl, &status)) << "ddl: " << ddl; ASSERT_FALSE(router->ExecuteDDL(db, "drop table " + name + ";", &status)); // create table db2.name when db2 not exit ddl = "create table db2." + name + - "(" - "col1 int, col2 bigint, col3 string," + "(col1 int, col2 bigint, col3 string," "index(key=col3, ts=col2));"; ASSERT_FALSE(router->ExecuteDDL("", ddl, &status)) << "ddl: " << ddl; ASSERT_FALSE(router->ExecuteDDL("", "drop table " + name + ";", &status)); + ddl = "create table t1 (col1 string, col2 string, col3 string, index(key=col1, ts=col2));"; + ASSERT_FALSE(router->ExecuteDDL(db, ddl, &status)) << "ddl: " << ddl; + ddl = "create table t1 (col1 string, col2 string, col3 string, index(key=col4));"; + ASSERT_FALSE(router->ExecuteDDL(db, ddl, &status)) << "ddl: " << ddl; + ddl = "create table t1 (col1 string, col2 string, col3 int, index(key=col4, ts=col3));"; + ASSERT_FALSE(router->ExecuteDDL(db, ddl, &status)) << "ddl: " << ddl; + ASSERT_TRUE(router->DropDB(db, &status)); +} + +TEST_F(SQLClusterDDLTest, CreateIndexCheck) { + std::string name = "test" + GenRand(); + std::string db = "db" + GenRand(); + ::hybridse::sdk::Status status; + ASSERT_TRUE(router->CreateDB(db, &status)); + std::string ddl = absl::StrCat("create table ", name, "(col1 string, col2 string, col3 string, col4 int);"); + ASSERT_TRUE(router->RefreshCatalog()); + ASSERT_TRUE(router->ExecuteDDL(db, ddl, &status)) << "ddl: " << ddl; + router->ExecuteSQL(db, absl::StrCat("create index index1 on ", name, "(col2) OPTIONS(ts=col3);"), &status); + ASSERT_FALSE(status.IsOK()); + router->ExecuteSQL(db, absl::StrCat("create index index1 on ", name, "(col5);"), &status); + ASSERT_FALSE(status.IsOK()); + router->ExecuteSQL(db, absl::StrCat("create index index1 on ", name, "(col2) OPTIONS(ts=col4);"), &status); + ASSERT_FALSE(status.IsOK()); + + ASSERT_TRUE(router->ExecuteDDL(db, "drop table " + name + ";", &status)); + ASSERT_TRUE(router->DropDB(db, &status)); } TEST_F(SQLClusterDDLTest, TestDelete) { @@ -1044,15 +1070,9 @@ TEST_P(SQLSDKQueryTest, SqlSdkDistributeRequestProcedureAsyncTest) { } TEST_F(SQLClusterTest, CreateTable) { - SQLRouterOptions sql_opt; - sql_opt.zk_cluster = mc_->GetZkCluster(); - sql_opt.zk_path = mc_->GetZkPath(); - auto router = NewClusterSQLRouter(sql_opt); - ASSERT_TRUE(router != nullptr); - SetOnlineMode(router); std::string db = "db" + GenRand(); ::hybridse::sdk::Status status; - bool ok = router->CreateDB(db, &status); + bool ok = router_->CreateDB(db, &status); ASSERT_TRUE(ok); for (int i = 0; i < 2; i++) { std::string name = "test" + std::to_string(i); @@ -1061,10 +1081,10 @@ TEST_F(SQLClusterTest, CreateTable) { "col1 string, col2 bigint," "index(key=col1, ts=col2)) " "options(partitionnum=3);"; - ok = router->ExecuteDDL(db, ddl, &status); + ok = router_->ExecuteDDL(db, ddl, &status); ASSERT_TRUE(ok); } - ASSERT_TRUE(router->RefreshCatalog()); + ASSERT_TRUE(router_->RefreshCatalog()); auto ns_client = mc_->GetNsClient(); std::vector<::openmldb::nameserver::TableInfo> tables; std::string msg; @@ -1083,9 +1103,9 @@ TEST_F(SQLClusterTest, CreateTable) { } ASSERT_EQ(pid_map.size(), 3u); ASSERT_EQ(pid_map.begin()->second, pid_map.rbegin()->second); - ASSERT_TRUE(router->ExecuteDDL(db, "drop table test0;", &status)); - ASSERT_TRUE(router->ExecuteDDL(db, "drop table test1;", &status)); - ASSERT_TRUE(router->DropDB(db, &status)); + ASSERT_TRUE(router_->ExecuteDDL(db, "drop table test0;", &status)); + ASSERT_TRUE(router_->ExecuteDDL(db, "drop table test1;", &status)); + ASSERT_TRUE(router_->DropDB(db, &status)); } TEST_F(SQLClusterTest, GetTableSchema) { diff --git a/test/integration-test/openmldb-test-python/ha_cases/test_addindex.py b/test/integration-test/openmldb-test-python/ha_cases/test_addindex.py index f813f799388..afef45d51bb 100644 --- a/test/integration-test/openmldb-test-python/ha_cases/test_addindex.py +++ b/test/integration-test/openmldb-test-python/ha_cases/test_addindex.py @@ -73,6 +73,11 @@ def test_addindex(self, storage_mode, snapshot): time.sleep(2) result = self.cursor.execute(f"create index index2 on {table_name} (col2) options (ts=col3)") + try: + result = self.cursor.execute(f"create index index3 on {table_name} (col1, col2) options (ts=col3)") + assert False + except Exception as e: + assert True time.sleep(1) assert self.executor.WaitingOP(database, table_name, 0).OK() status, indexs = self.executor.GetIndexs(database, table_name) From 6eff0211cb0734449406d1634af9507402e82f1c Mon Sep 17 00:00:00 2001 From: dl239 Date: Thu, 31 Aug 2023 16:29:59 +0800 Subject: [PATCH 038/111] fix: the result of select on the deleted index col is empty (#3426) --- src/catalog/tablet_catalog.cc | 48 +++++++++++++++++++++++++++++------ src/catalog/tablet_catalog.h | 7 ++--- src/cmd/sql_cmd_test.cc | 5 +++- src/tablet/tablet_impl.cc | 13 ++++++++-- 4 files changed, 59 insertions(+), 14 deletions(-) diff --git a/src/catalog/tablet_catalog.cc b/src/catalog/tablet_catalog.cc index 528b570734a..7f470703b6c 100644 --- a/src/catalog/tablet_catalog.cc +++ b/src/catalog/tablet_catalog.cc @@ -92,6 +92,9 @@ bool TabletTableHandler::UpdateIndex( index_hint_vec_[pos].clear(); for (int32_t i = 0; i < indexs.size(); i++) { const auto& column_key = indexs.Get(i); + if (column_key.flag() != 0) { + continue; + } ::hybridse::vm::IndexSt index_st; index_st.index = i; index_st.ts_pos = ::hybridse::vm::INVALID_POS; @@ -229,7 +232,9 @@ int TabletTableHandler::DeleteTable(uint32_t pid) { return new_tables->size(); } -void TabletTableHandler::Update(const ::openmldb::nameserver::TableInfo& meta, const ClientManager& client_manager) { +bool TabletTableHandler::Update(const ::openmldb::nameserver::TableInfo& meta, const ClientManager& client_manager, + bool* index_updated) { + *index_updated = false; ::openmldb::storage::TableSt new_table_st(meta); for (const auto& partition_st : *(new_table_st.GetPartitions())) { uint32_t pid = partition_st.GetPid(); @@ -238,10 +243,28 @@ void TabletTableHandler::Update(const ::openmldb::nameserver::TableInfo& meta, c } table_client_manager_->UpdatePartitionClientManager(partition_st, client_manager); } - if (meta.column_key_size() != static_cast(GetIndex().size())) { - LOG(INFO) << "index size changed, update index" << meta.column_key_size() << " " << GetIndex().size(); - UpdateIndex(meta.column_key()); + const auto& index_hint = GetIndex(); + size_t index_cnt = 0; + bool has_new_index = false; + for (const auto& column_key : meta.column_key()) { + if (column_key.flag() != 0) { + continue; + } + index_cnt++; + if (index_hint.find(column_key.index_name()) == index_hint.end()) { + has_new_index = true; + break; + } + } + if (index_cnt != index_hint.size() || has_new_index) { + LOG(INFO) << "index size changed. current index size " << index_hint.size() + << " , new index size " << index_cnt; + if (!UpdateIndex(meta.column_key())) { + return false; + } + *index_updated = true; } + return true; } std::shared_ptr<::hybridse::vm::Tablet> TabletTableHandler::GetTablet(const std::string& index_name, @@ -433,7 +456,8 @@ bool TabletCatalog::UpdateTableMeta(const ::openmldb::api::TableMeta& meta) { return handler->UpdateIndex(meta.column_key()); } -bool TabletCatalog::UpdateTableInfo(const ::openmldb::nameserver::TableInfo& table_info) { +bool TabletCatalog::UpdateTableInfo(const ::openmldb::nameserver::TableInfo& table_info, bool* index_updated) { + *index_updated = false; const std::string& db_name = table_info.db(); const std::string& table_name = table_info.name(); std::shared_ptr handler; @@ -456,13 +480,18 @@ bool TabletCatalog::UpdateTableInfo(const ::openmldb::nameserver::TableInfo& tab } else { handler = it->second; } - handler->Update(table_info, client_manager_); + if (bool updated = false; !handler->Update(table_info, client_manager_, &updated)) { + return false; + } else if (updated) { + *index_updated = true; + } } return true; } void TabletCatalog::Refresh(const std::vector<::openmldb::nameserver::TableInfo>& table_info_vec, uint64_t version, - const Procedures& db_sp_map) { + const Procedures& db_sp_map, bool* updated) { + *updated = false; std::map> table_map; for (const auto& table_info : table_info_vec) { const std::string& db_name = table_info.db(); @@ -470,8 +499,10 @@ void TabletCatalog::Refresh(const std::vector<::openmldb::nameserver::TableInfo> if (db_name.empty()) { continue; } - if (!UpdateTableInfo(table_info)) { + if (bool index_updated = false; !UpdateTableInfo(table_info, &index_updated)) { continue; + } else if (index_updated) { + *updated = true; } auto cur_db_it = table_map.find(db_name); if (cur_db_it == table_map.end()) { @@ -494,6 +525,7 @@ void TabletCatalog::Refresh(const std::vector<::openmldb::nameserver::TableInfo> !table_it->second->HasLocalTable()) { LOG(INFO) << "delete table from catalog. db: " << db_it->first << ", table: " << table_it->first; table_it = db_it->second.erase(table_it); + *updated = true; continue; } ++table_it; diff --git a/src/catalog/tablet_catalog.h b/src/catalog/tablet_catalog.h index 99ec0aa6adb..6b0365f6f51 100644 --- a/src/catalog/tablet_catalog.h +++ b/src/catalog/tablet_catalog.h @@ -182,7 +182,8 @@ class TabletTableHandler : public ::hybridse::vm::TableHandler, int DeleteTable(uint32_t pid); - void Update(const ::openmldb::nameserver::TableInfo &meta, const ClientManager &client_manager); + bool Update(const ::openmldb::nameserver::TableInfo &meta, const ClientManager &client_manager, + bool* index_updated); private: inline int32_t GetColumnIndex(const std::string &column) { @@ -223,7 +224,7 @@ class TabletCatalog : public ::hybridse::vm::Catalog { bool UpdateTableMeta(const ::openmldb::api::TableMeta &meta); - bool UpdateTableInfo(const ::openmldb::nameserver::TableInfo& table_info); + bool UpdateTableInfo(const ::openmldb::nameserver::TableInfo& table_info, bool* index_updated); std::shared_ptr<::hybridse::type::Database> GetDatabase(const std::string &db) override; @@ -237,7 +238,7 @@ class TabletCatalog : public ::hybridse::vm::Catalog { bool DeleteDB(const std::string &db); void Refresh(const std::vector<::openmldb::nameserver::TableInfo> &table_info_vec, uint64_t version, - const Procedures &db_sp_map); + const Procedures &db_sp_map, bool* updated); bool AddProcedure(const std::string &db, const std::string &sp_name, const std::shared_ptr &sp_info); diff --git a/src/cmd/sql_cmd_test.cc b/src/cmd/sql_cmd_test.cc index e6f2b88012a..bd66e6db4dc 100644 --- a/src/cmd/sql_cmd_test.cc +++ b/src/cmd/sql_cmd_test.cc @@ -3681,10 +3681,13 @@ TEST_F(SqlCmdTest, SelectWithAddNewIndex) { ASSERT_EQ(res->Size(), 3); res = sr->ExecuteSQL(absl::StrCat("select id,c1,c2,c3 from ", tb1_name, " where c2=1;"), &status); ASSERT_EQ(res->Size(), 3); + ProcessSQLs(sr, {absl::StrCat("drop index ", db1_name, ".", tb1_name, ".index1")}); + absl::SleepFor(absl::Seconds(2)); + res = sr->ExecuteSQL(absl::StrCat("select id,c1,c2,c3 from ", tb1_name, " where c2=1;"), &status); + ASSERT_EQ(res->Size(), 3); ProcessSQLs(sr, { absl::StrCat("use ", db1_name, ";"), - absl::StrCat("drop index ", db1_name, ".", tb1_name, ".index1"), absl::StrCat("drop table ", tb1_name), absl::StrCat("drop database ", db1_name), }); diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index 03335c60a7a..6fb002edbd3 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -4247,7 +4247,12 @@ bool TabletImpl::RefreshSingleTable(uint32_t tid) { LOG(WARNING) << "fail to parse table proto. tid: " << tid << " value: " << value; return false; } - return catalog_->UpdateTableInfo(table_info); + if (bool index_updated = false; !catalog_->UpdateTableInfo(table_info, &index_updated)) { + return false; + } else if (index_updated) { + engine_->ClearCacheLocked(""); + } + return true; } void TabletImpl::UpdateGlobalVarTable() { @@ -4369,7 +4374,11 @@ void TabletImpl::RefreshTableInfo() { } } auto old_db_sp_map = catalog_->GetProcedures(); - catalog_->Refresh(table_info_vec, version, db_sp_map); + bool updated = false; + catalog_->Refresh(table_info_vec, version, db_sp_map, &updated); + if (updated) { + engine_->ClearCacheLocked(""); + } // skip exist procedure, don`t need recompile for (const auto& db_sp_map_kv : db_sp_map) { const auto& db = db_sp_map_kv.first; From a013ba33e4ce131353edc71e27053b1801ffb8f7 Mon Sep 17 00:00:00 2001 From: dl239 Date: Thu, 31 Aug 2023 19:42:02 +0800 Subject: [PATCH 039/111] refactor: optimize the error message of create table (#3434) --- src/catalog/distribute_iterator_test.cc | 42 +++++++-------- src/client/tablet_client.cc | 68 +++---------------------- src/client/tablet_client.h | 7 +-- src/nameserver/name_server_impl.cc | 60 ++++++++++++---------- src/nameserver/name_server_impl.h | 4 +- src/replica/binlog_test.cc | 12 ++--- src/replica/snapshot_replica_test.cc | 56 ++++++++++---------- src/schema/index_util.cc | 14 ++--- src/schema/index_util.h | 2 +- src/sdk/node_adapter.cc | 34 +++++++------ src/test/util.cc | 35 +++++++++++++ src/test/util.h | 8 +++ 12 files changed, 168 insertions(+), 174 deletions(-) diff --git a/src/catalog/distribute_iterator_test.cc b/src/catalog/distribute_iterator_test.cc index 72a716bac3d..49e4958101f 100644 --- a/src/catalog/distribute_iterator_test.cc +++ b/src/catalog/distribute_iterator_test.cc @@ -162,8 +162,8 @@ TEST_F(DistributeIteratorTest, AllInRemote) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 4)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {4, client2}}; FullTableIterator it(tid, {}, tablet_clients); it.SeekToFirst(); @@ -205,8 +205,8 @@ TEST_F(DistributeIteratorTest, Hybrid) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 4)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {4, client2}}; FullTableIterator it(tid, tables, tablet_clients); it.SeekToFirst(); @@ -265,8 +265,8 @@ TEST_F(DistributeIteratorTest, FullTableTraverseLimit) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 4)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {4, client2}}; FullTableIterator it(tid, tables, tablet_clients); it.SeekToFirst(); @@ -317,7 +317,7 @@ TEST_F(DistributeIteratorTest, TraverseLimitSingle) { auto client1 = std::make_shared(endpoints[0], endpoints[0]); ASSERT_EQ(client1->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 0)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); std::map> tablet_clients = {{0, client1}}; for (int i = 0; i < 10; i++) { std::string key = "card" + std::to_string(i); @@ -355,8 +355,8 @@ TEST_F(DistributeIteratorTest, TraverseLimit) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 3)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {3, client2}}; std::map cout_map = {{0, 0}, {1, 0}, {2, 0}, {3, 0}}; for (int i = 0; i < 100; i++) { @@ -399,8 +399,8 @@ TEST_F(DistributeIteratorTest, WindowIterator) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 3)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {3, client2}}; for (int i = 0; i < 20; i++) { std::string key = "card" + std::to_string(i); @@ -462,7 +462,7 @@ TEST_F(DistributeIteratorTest, RemoteIterator) { auto client1 = std::make_shared(endpoints[0], endpoints[0]); ASSERT_EQ(client1->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 0)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); std::map> tablet_clients = {{0, client1}}; codec::SDKCodec codec(metas[0]); int64_t now = 1999; @@ -540,7 +540,7 @@ TEST_F(DistributeIteratorTest, RemoteIteratorSecondIndex) { auto client1 = std::make_shared(endpoints[0], endpoints[0]); ASSERT_EQ(client1->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 0)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); std::map> tablet_clients = {{0, client1}}; codec::SDKCodec codec(metas[0]); uint64_t now = ::baidu::common::timer::get_micros() / 1000; @@ -678,8 +678,8 @@ TEST_F(DistributeIteratorTest, MoreTsCnt) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 3)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {3, client2}}; std::map cout_map = {{0, 0}, {1, 0}, {2, 0}, {3, 0}}; for (int i = 0; i < 50; i++) { @@ -759,8 +759,8 @@ TEST_F(DistributeIteratorTest, TraverseSameTs) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 3)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {3, client2}}; std::map cout_map = {{0, 0}, {1, 0}, {2, 0}, {3, 0}}; for (int i = 0; i < 20; i++) { @@ -804,8 +804,8 @@ TEST_F(DistributeIteratorTest, WindowIteratorLimit) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 3)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {3, client2}}; for (int i = 0; i < 20; i++) { std::string key = "card" + std::to_string(i); @@ -921,8 +921,8 @@ TEST_F(DistributeIteratorTest, IteratorZero) { auto client2 = std::make_shared(endpoints[1], endpoints[1]); ASSERT_EQ(client2->Init(), 0); std::vector<::openmldb::api::TableMeta> metas = {CreateTableMeta(tid, 1), CreateTableMeta(tid, 3)}; - ASSERT_TRUE(client1->CreateTable(metas[0])); - ASSERT_TRUE(client2->CreateTable(metas[1])); + ASSERT_TRUE(client1->CreateTable(metas[0]).OK()); + ASSERT_TRUE(client2->CreateTable(metas[1]).OK()); std::map> tablet_clients = {{1, client1}, {3, client2}}; std::map cout_map = {{0, 0}, {1, 0}, {2, 0}, {3, 0}}; int expect = 0; diff --git a/src/client/tablet_client.cc b/src/client/tablet_client.cc index aca61c6cad9..3ed9eb596b5 100644 --- a/src/client/tablet_client.cc +++ b/src/client/tablet_client.cc @@ -153,72 +153,18 @@ bool TabletClient::SQLBatchRequestQuery(const std::string& db, const std::string return true; } -bool TabletClient::CreateTable(const std::string& name, uint32_t tid, uint32_t pid, uint64_t abs_ttl, uint64_t lat_ttl, - bool leader, const std::vector& endpoints, - const ::openmldb::type::TTLType& type, uint32_t seg_cnt, uint64_t term, - const ::openmldb::type::CompressType compress_type, - ::openmldb::common::StorageMode storage_mode) { - ::openmldb::api::CreateTableRequest request; - if (type == ::openmldb::type::kLatestTime) { - if (lat_ttl > FLAGS_latest_ttl_max) { - return false; - } - } else if (type == ::openmldb::type::TTLType::kAbsoluteTime) { - if (abs_ttl > FLAGS_absolute_ttl_max) { - return false; - } - } else { - if (abs_ttl > FLAGS_absolute_ttl_max || lat_ttl > FLAGS_latest_ttl_max) { - return false; - } - } - ::openmldb::api::TableMeta* table_meta = request.mutable_table_meta(); - table_meta->set_name(name); - table_meta->set_tid(tid); - table_meta->set_pid(pid); - table_meta->set_compress_type(compress_type); - table_meta->set_seg_cnt(seg_cnt); - table_meta->set_storage_mode(storage_mode); - if (leader) { - table_meta->set_mode(::openmldb::api::TableMode::kTableLeader); - table_meta->set_term(term); - } else { - table_meta->set_mode(::openmldb::api::TableMode::kTableFollower); - } - for (size_t i = 0; i < endpoints.size(); i++) { - table_meta->add_replicas(endpoints[i]); - } - ::openmldb::common::ColumnDesc* column_desc = table_meta->add_column_desc(); - column_desc->set_name("idx0"); - column_desc->set_data_type(::openmldb::type::kString); - ::openmldb::common::ColumnKey* index = table_meta->add_column_key(); - index->set_index_name("idx0"); - index->add_col_name("idx0"); - ::openmldb::common::TTLSt* ttl = index->mutable_ttl(); - ttl->set_abs_ttl(abs_ttl); - ttl->set_lat_ttl(lat_ttl); - ttl->set_ttl_type(type); - // table_meta->set_ttl_type(type); - ::openmldb::api::CreateTableResponse response; - bool ok = client_.SendRequest(&::openmldb::api::TabletServer_Stub::CreateTable, &request, &response, - FLAGS_request_timeout_ms * 2, 1); - if (ok && response.code() == 0) { - return true; - } - return false; -} - -bool TabletClient::CreateTable(const ::openmldb::api::TableMeta& table_meta) { +base::Status TabletClient::CreateTable(const ::openmldb::api::TableMeta& table_meta) { ::openmldb::api::CreateTableRequest request; ::openmldb::api::TableMeta* table_meta_ptr = request.mutable_table_meta(); table_meta_ptr->CopyFrom(table_meta); ::openmldb::api::CreateTableResponse response; - bool ok = client_.SendRequest(&::openmldb::api::TabletServer_Stub::CreateTable, &request, &response, - FLAGS_request_timeout_ms * 2, 1); - if (ok && response.code() == 0) { - return true; + if (!client_.SendRequest(&::openmldb::api::TabletServer_Stub::CreateTable, &request, &response, + FLAGS_request_timeout_ms * 2, 1)) { + return {base::ReturnCode::kRPCError, "send request failed!"}; + } else if (response.code() == 0) { + return {}; } - return false; + return {response.code(), response.msg()}; } bool TabletClient::UpdateTableMetaForAddField(uint32_t tid, const std::vector& cols, diff --git a/src/client/tablet_client.h b/src/client/tablet_client.h index 895960b9bdc..23a1c5df879 100644 --- a/src/client/tablet_client.h +++ b/src/client/tablet_client.h @@ -54,12 +54,7 @@ class TabletClient : public Client { int Init() override; - bool CreateTable(const std::string& name, uint32_t tid, uint32_t pid, uint64_t abs_ttl, uint64_t lat_ttl, - bool leader, const std::vector& endpoints, const ::openmldb::type::TTLType& type, - uint32_t seg_cnt, uint64_t term, const ::openmldb::type::CompressType compress_type, - ::openmldb::common::StorageMode storage_mode = ::openmldb::common::kMemory); - - bool CreateTable(const ::openmldb::api::TableMeta& table_meta); + base::Status CreateTable(const ::openmldb::api::TableMeta& table_meta); bool UpdateTableMetaForAddField(uint32_t tid, const std::vector& cols, const openmldb::common::VersionPair& pair, diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index 1dd5acf58ff..4aae3c594c3 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -2182,9 +2182,9 @@ int NameServerImpl::SetPartitionInfo(TableInfo& table_info) { return 0; } -int NameServerImpl::CreateTableOnTablet(const std::shared_ptr<::openmldb::nameserver::TableInfo>& table_info, - bool is_leader, std::map>& endpoint_map, - uint64_t term) { +base::Status NameServerImpl::CreateTableOnTablet(const std::shared_ptr<::openmldb::nameserver::TableInfo>& table_info, + bool is_leader, uint64_t term, + std::map>* endpoint_map) { ::openmldb::type::CompressType compress_type = ::openmldb::type::CompressType::kNoCompress; if (table_info->compress_type() == ::openmldb::type::kSnappy) { compress_type = ::openmldb::type::CompressType::kSnappy; @@ -2201,18 +2201,16 @@ int NameServerImpl::CreateTableOnTablet(const std::shared_ptr<::openmldb::namese table_meta.set_key_entry_max_height(table_info->key_entry_max_height()); } for (int idx = 0; idx < table_info->column_desc_size(); idx++) { - ::openmldb::common::ColumnDesc* column_desc = table_meta.add_column_desc(); - column_desc->CopyFrom(table_info->column_desc(idx)); + table_meta.add_column_desc()->CopyFrom(table_info->column_desc(idx)); } for (int idx = 0; idx < table_info->column_key_size(); idx++) { - ::openmldb::common::ColumnKey* column_key = table_meta.add_column_key(); - column_key->CopyFrom(table_info->column_key(idx)); + table_meta.add_column_key()->CopyFrom(table_info->column_key(idx)); } for (const auto& table_partition : table_info->table_partition()) { - ::openmldb::common::TablePartition* partition = table_meta.add_table_partition(); + auto partition = table_meta.add_table_partition(); partition->set_pid(table_partition.pid()); for (const auto& partition_meta : table_partition.partition_meta()) { - ::openmldb::common::PartitionMeta* meta = partition->add_partition_meta(); + auto meta = partition->add_partition_meta(); meta->set_endpoint(partition_meta.endpoint()); meta->set_is_leader(partition_meta.is_leader()); meta->set_is_alive(true); @@ -2229,36 +2227,37 @@ int NameServerImpl::CreateTableOnTablet(const std::shared_ptr<::openmldb::namese std::string endpoint = table_info->table_partition(idx).partition_meta(meta_idx).endpoint(); auto tablet_ptr = GetTablet(endpoint); if (!tablet_ptr) { - PDLOG(WARNING, "endpoint[%s] can not find client", endpoint.c_str()); - return -1; + PDLOG(WARNING, "endpoint[%s] cannot find client", endpoint.c_str()); + return {base::ReturnCode::kServerConnError, absl::StrCat("endpoint ", endpoint, " cannot find client")}; } if (is_leader) { - ::openmldb::nameserver::TablePartition* table_partition = table_info->mutable_table_partition(idx); - ::openmldb::nameserver::TermPair* term_pair = table_partition->add_term_offset(); + auto table_partition = table_info->mutable_table_partition(idx); + auto term_pair = table_partition->add_term_offset(); term_pair->set_term(term); term_pair->set_offset(0); table_meta.set_mode(::openmldb::api::TableMode::kTableLeader); table_meta.set_term(term); - for (const auto& e : endpoint_map[pid]) { + for (const auto& e : (*endpoint_map)[pid]) { table_meta.add_replicas(e); } } else { - if (endpoint_map.find(pid) == endpoint_map.end()) { - endpoint_map.insert(std::make_pair(pid, std::vector())); + auto iter = endpoint_map->find(pid); + if (iter == endpoint_map->end()) { + iter = endpoint_map->emplace(pid, std::vector()).first; } - endpoint_map[pid].push_back(endpoint); + iter->second.push_back(endpoint); table_meta.set_mode(::openmldb::api::TableMode::kTableFollower); } - if (!tablet_ptr->client_->CreateTable(table_meta)) { - PDLOG(WARNING, "create table failed. tid[%u] pid[%u] endpoint[%s]", table_info->tid(), pid, - endpoint.c_str()); - return -1; + if (auto status = tablet_ptr->client_->CreateTable(table_meta); !status.OK()) { + PDLOG(WARNING, "create table failed. tid[%u] pid[%u] endpoint[%s] msg[%s]", + table_info->tid(), pid, endpoint.c_str(), status.GetMsg().c_str()); + return status; } PDLOG(INFO, "create table success. tid[%u] pid[%u] endpoint[%s] idx[%d]", table_info->tid(), pid, endpoint.c_str(), idx); } } - return 0; + return {}; } int NameServerImpl::DropTableOnTablet(std::shared_ptr<::openmldb::nameserver::TableInfo> table_info) { @@ -3758,11 +3757,18 @@ void NameServerImpl::CreateTableInternel(GeneralResponse& response, std::shared_ptr<::openmldb::api::TaskInfo> task_ptr) { std::map> endpoint_map; do { - if (CreateTableOnTablet(table_info, false, endpoint_map, cur_term) < 0 || - CreateTableOnTablet(table_info, true, endpoint_map, cur_term) < 0) { - response.set_code(::openmldb::base::ReturnCode::kCreateTableFailedOnTablet); - response.set_msg("create table failed on tablet"); - PDLOG(WARNING, "create table failed. name[%s] tid[%u]", table_info->name().c_str(), tid); + auto status = CreateTableOnTablet(table_info, false, cur_term, &endpoint_map); + if (!status.OK()) { + base::SetResponseStatus(status, &response); + PDLOG(WARNING, "create table failed. name[%s] tid[%u] msg[%s]", + table_info->name().c_str(), tid, status.GetMsg().c_str()); + break; + } + status = CreateTableOnTablet(table_info, true, cur_term, &endpoint_map); + if (!status.OK()) { + base::SetResponseStatus(status, &response); + PDLOG(WARNING, "create table failed. name[%s] tid[%u] msg[%s]", + table_info->name().c_str(), tid, status.GetMsg().c_str()); break; } if (!IsClusterMode()) { diff --git a/src/nameserver/name_server_impl.h b/src/nameserver/name_server_impl.h index d7e030c0eab..4bfe84ad5f4 100644 --- a/src/nameserver/name_server_impl.h +++ b/src/nameserver/name_server_impl.h @@ -306,8 +306,8 @@ class NameServerImpl : public NameServer { const ::openmldb::nameserver::TableInfo& table_info_local, uint32_t pid, int& code, // NOLINT std::string& msg); // NOLINT - int CreateTableOnTablet(const std::shared_ptr<::openmldb::nameserver::TableInfo>& table_info, bool is_leader, - std::map>& endpoint_map, uint64_t term); // NOLINT + base::Status CreateTableOnTablet(const std::shared_ptr<::openmldb::nameserver::TableInfo>& table_info, + bool is_leader, uint64_t term, std::map>* endpoint_map); void CheckZkClient(); diff --git a/src/replica/binlog_test.cc b/src/replica/binlog_test.cc index 350a53d4d04..797514c76bd 100644 --- a/src/replica/binlog_test.cc +++ b/src/replica/binlog_test.cc @@ -86,19 +86,19 @@ TEST_F(BinlogTest, DeleteBinlog) { ::openmldb::client::TabletClient client(leader_point, ""); client.Init(); std::vector endpoints; - bool ret = - client.CreateTable("table1", tid, pid, 100000, 0, true, endpoints, ::openmldb::type::TTLType::kAbsoluteTime, 16, - 0, ::openmldb::type::CompressType::kNoCompress); - ASSERT_TRUE(ret); + auto status = client.CreateTable(test::CreateTableMeta("table1", tid, pid, 100000, 0, true, endpoints, + ::openmldb::type::TTLType::kAbsoluteTime, 16, + 0, ::openmldb::type::CompressType::kNoCompress)); + ASSERT_TRUE(status.OK()); uint64_t cur_time = ::baidu::common::timer::get_micros() / 1000; int count = 1000; while (count) { std::string key = "testkey_" + std::to_string(count); - ret = client.Put(tid, pid, key, cur_time, ::openmldb::test::EncodeKV(key, std::string(10 * 1024, 'a'))); + client.Put(tid, pid, key, cur_time, ::openmldb::test::EncodeKV(key, std::string(10 * 1024, 'a'))); count--; } - ret = client.MakeSnapshot(tid, pid, 0); + auto ret = client.MakeSnapshot(tid, pid, 0); std::string binlog_path = FLAGS_db_root_path + "/2_123/binlog"; std::vector vec; ASSERT_TRUE(ret); diff --git a/src/replica/snapshot_replica_test.cc b/src/replica/snapshot_replica_test.cc index ee6c67e0b36..a9302050142 100644 --- a/src/replica/snapshot_replica_test.cc +++ b/src/replica/snapshot_replica_test.cc @@ -82,13 +82,13 @@ TEST_P(SnapshotReplicaTest, AddReplicate) { ::openmldb::client::TabletClient client(leader_point, ""); client.Init(); std::vector endpoints; - bool ret = - client.CreateTable("table1", tid, pid, 100000, 0, true, endpoints, ::openmldb::type::TTLType::kAbsoluteTime, 16, - 0, ::openmldb::type::CompressType::kNoCompress, storage_mode); - ASSERT_TRUE(ret); + auto status = client.CreateTable(test::CreateTableMeta("table1", tid, pid, 100000, 0, true, endpoints, + ::openmldb::type::TTLType::kAbsoluteTime, 16, 0, + ::openmldb::type::CompressType::kNoCompress, storage_mode)); + ASSERT_TRUE(status.OK()); std::string end_point = "127.0.0.1:18530"; - ret = client.AddReplica(tid, pid, end_point); + auto ret = client.AddReplica(tid, pid, end_point); ASSERT_TRUE(ret); sleep(1); @@ -123,12 +123,12 @@ TEST_P(SnapshotReplicaTest, LeaderAndFollower) { ::openmldb::client::TabletClient client(leader_point, ""); client.Init(); std::vector endpoints; - bool ret = - client.CreateTable("table1", tid, pid, 100000, 0, true, endpoints, ::openmldb::type::TTLType::kAbsoluteTime, 16, - 0, ::openmldb::type::CompressType::kNoCompress, storage_mode); - ASSERT_TRUE(ret); + auto status = client.CreateTable(test::CreateTableMeta("table1", tid, pid, 100000, 0, true, endpoints, + ::openmldb::type::TTLType::kAbsoluteTime, 16, + 0, ::openmldb::type::CompressType::kNoCompress, storage_mode)); + ASSERT_TRUE(status.OK()); uint64_t cur_time = ::baidu::common::timer::get_micros() / 1000; - ret = client.Put(tid, pid, "testkey", cur_time, ::openmldb::test::EncodeKV("testkey", "value1")); + auto ret = client.Put(tid, pid, "testkey", cur_time, ::openmldb::test::EncodeKV("testkey", "value1")); ASSERT_TRUE(ret); uint32_t count = 0; @@ -159,9 +159,10 @@ TEST_P(SnapshotReplicaTest, LeaderAndFollower) { // server.RunUntilAskedToQuit(); ::openmldb::client::TabletClient client1(follower_point, ""); client1.Init(); - ret = client1.CreateTable("table1", tid, pid, 14400, 0, false, endpoints, ::openmldb::type::TTLType::kAbsoluteTime, - 16, 0, ::openmldb::type::CompressType::kNoCompress, storage_mode); - ASSERT_TRUE(ret); + status = client1.CreateTable(test::CreateTableMeta("table1", tid, pid, 14400, 0, false, endpoints, + ::openmldb::type::TTLType::kAbsoluteTime, + 16, 0, ::openmldb::type::CompressType::kNoCompress, storage_mode)); + ASSERT_TRUE(status.OK()); client.AddReplica(tid, pid, follower_point); sleep(3); @@ -232,12 +233,12 @@ TEST_P(SnapshotReplicaTest, SendSnapshot) { ::openmldb::client::TabletClient client(leader_point, ""); client.Init(); std::vector endpoints; - bool ret = - client.CreateTable("table1", tid, pid, 100000, 0, true, endpoints, ::openmldb::type::TTLType::kAbsoluteTime, 16, - 0, ::openmldb::type::CompressType::kNoCompress, storage_mode); - ASSERT_TRUE(ret); + auto status = client.CreateTable(test::CreateTableMeta("table1", tid, pid, 100000, 0, true, endpoints, + ::openmldb::type::TTLType::kAbsoluteTime, 16, + 0, ::openmldb::type::CompressType::kNoCompress, storage_mode)); + ASSERT_TRUE(status.OK()); uint64_t cur_time = ::baidu::common::timer::get_micros() / 1000; - ret = client.Put(tid, pid, "testkey", cur_time, ::openmldb::test::EncodeKV("testkey", "value1")); + auto ret = client.Put(tid, pid, "testkey", cur_time, ::openmldb::test::EncodeKV("testkey", "value1")); ASSERT_TRUE(ret); uint32_t count = 0; @@ -344,11 +345,11 @@ TEST_P(SnapshotReplicaTest, IncompleteSnapshot) { ::openmldb::client::TabletClient client(leader_point, ""); client.Init(); std::vector endpoints; - bool ret = - client.CreateTable("table1", tid, pid, 100000, 0, true, endpoints, ::openmldb::type::TTLType::kAbsoluteTime, - 16, 0, ::openmldb::type::CompressType::kNoCompress, storage_mode); - ASSERT_TRUE(ret); - ret = client.Put(tid, pid, "testkey", cur_time, ::openmldb::test::EncodeKV("testkey", "value1")); + auto status = client.CreateTable(test::CreateTableMeta("table1", tid, pid, 100000, 0, true, endpoints, + ::openmldb::type::TTLType::kAbsoluteTime, + 16, 0, ::openmldb::type::CompressType::kNoCompress, storage_mode)); + ASSERT_TRUE(status.OK()); + auto ret = client.Put(tid, pid, "testkey", cur_time, ::openmldb::test::EncodeKV("testkey", "value1")); ASSERT_TRUE(ret); uint32_t count = 0; @@ -571,8 +572,7 @@ TEST_P(SnapshotReplicaTest, LeaderAndFollowerTS) { SchemaCodec::SetIndex(table_meta.add_column_key(), "card1", "card", "ts2", ::openmldb::type::kAbsoluteTime, 0, 0); SchemaCodec::SetIndex(table_meta.add_column_key(), "mcc", "mcc", "ts2", ::openmldb::type::kAbsoluteTime, 0, 0); table_meta.set_mode(::openmldb::api::TableMode::kTableLeader); - bool ret = client.CreateTable(table_meta); - ASSERT_TRUE(ret); + ASSERT_TRUE(client.CreateTable(table_meta).OK()); uint64_t cur_time = ::baidu::common::timer::get_micros() / 1000; std::vector> dimensions; dimensions.push_back(std::make_pair("card0", 0)); @@ -582,8 +582,7 @@ TEST_P(SnapshotReplicaTest, LeaderAndFollowerTS) { std::vector row = {"card0", "mcc0", "1.3", std::to_string(cur_time), std::to_string(cur_time - 100)}; std::string value; sdk_codec.EncodeRow(row, &value); - ret = client.Put(tid, pid, cur_time, value, dimensions); - ASSERT_TRUE(ret); + ASSERT_TRUE(client.Put(tid, pid, cur_time, value, dimensions)); sleep(3); ::openmldb::test::TempPath temp_path; @@ -605,8 +604,7 @@ TEST_P(SnapshotReplicaTest, LeaderAndFollowerTS) { ::openmldb::client::TabletClient client1(follower_point, ""); client1.Init(); table_meta.set_mode(::openmldb::api::TableMode::kTableFollower); - ret = client1.CreateTable(table_meta); - ASSERT_TRUE(ret); + ASSERT_TRUE(client1.CreateTable(table_meta).OK()); client.AddReplica(tid, pid, follower_point); sleep(3); diff --git a/src/schema/index_util.cc b/src/schema/index_util.cc index 81ed5cd5177..fead40b5c70 100644 --- a/src/schema/index_util.cc +++ b/src/schema/index_util.cc @@ -80,19 +80,21 @@ base::Status IndexUtil::CheckIndex(const std::map FLAGS_absolute_ttl_max || ttl.lat_ttl() > FLAGS_latest_ttl_max) { - return false; +base::Status IndexUtil::CheckTTL(const ::openmldb::common::TTLSt& ttl) { + if (ttl.abs_ttl() > FLAGS_absolute_ttl_max) { + return {base::ReturnCode::kError, absl::StrCat("absolute ttl cannot be greater than ", FLAGS_absolute_ttl_max)}; + } else if (ttl.lat_ttl() > FLAGS_latest_ttl_max) { + return {base::ReturnCode::kError, absl::StrCat("latest ttl cannot be greater than ", FLAGS_latest_ttl_max)}; } - return true; + return {}; } bool IndexUtil::AddDefaultIndex(openmldb::nameserver::TableInfo* table_info) { diff --git a/src/schema/index_util.h b/src/schema/index_util.h index 465abac1ec1..31880fa0654 100644 --- a/src/schema/index_util.h +++ b/src/schema/index_util.h @@ -46,7 +46,7 @@ class IndexUtil { static base::Status CheckUnique(const PBIndex& index); - static bool CheckTTL(const ::openmldb::common::TTLSt& ttl); + static base::Status CheckTTL(const ::openmldb::common::TTLSt& ttl); static bool AddDefaultIndex(openmldb::nameserver::TableInfo* table_info); diff --git a/src/sdk/node_adapter.cc b/src/sdk/node_adapter.cc index bf64ac8d4bc..b148c8a4ca9 100644 --- a/src/sdk/node_adapter.cc +++ b/src/sdk/node_adapter.cc @@ -273,6 +273,10 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n *status = {hybridse::common::kUnsupportSql, "partitionnum should be great than 0"}; return false; } + if (storage_mode == hybridse::node::StorageMode::kUnknown) { + *status = {hybridse::common::kUnsupportSql, "invalid storage mode"}; + return false; + } // deny create table when invalid configuration in standalone mode if (!is_cluster_mode) { if (replica_num != 1) { @@ -298,7 +302,7 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n auto* column_def = dynamic_cast(column_desc); ::openmldb::common::ColumnDesc* add_column_desc = table->add_column_desc(); if (column_names.find(add_column_desc->name()) != column_names.end()) { - status->msg = "CREATE common: COLUMN NAME " + column_def->GetColumnName() + " duplicate"; + status->msg = "COLUMN NAME " + column_def->GetColumnName() + " duplicate"; status->code = hybridse::common::kUnsupportSql; return false; } @@ -307,7 +311,7 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n column_names.insert(std::make_pair(column_def->GetColumnName(), add_column_desc)); openmldb::type::DataType data_type; if (!openmldb::schema::SchemaAdapter::ConvertType(column_def->GetColumnType(), &data_type)) { - status->msg = "CREATE common: column type " + + status->msg = "column type " + hybridse::node::DataTypeName(column_def->GetColumnType()) + " is not supported"; status->code = hybridse::common::kUnsupportSql; return false; @@ -316,14 +320,14 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n auto default_val = column_def->GetDefaultValue(); if (default_val) { if (default_val->GetExprType() != hybridse::node::kExprPrimary) { - status->msg = "CREATE common: default value expression not supported"; + status->msg = "default value expression not supported"; status->code = hybridse::common::kTypeError; return false; } auto val = TransformDataType(*dynamic_cast(default_val), add_column_desc->data_type()); if (!val) { - status->msg = "CREATE common: default value type mismatch"; + status->msg = "default value type mismatch"; status->code = hybridse::common::kTypeError; return false; } @@ -339,7 +343,7 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n DCHECK(index_name.empty()); index_name = PlanAPI::GenerateName("INDEX", table->column_key_size()); if (index_names.find(index_name) != index_names.end()) { - status->msg = "CREATE common: INDEX NAME " + index_name + " duplicate"; + status->msg = "INDEX NAME " + index_name + " duplicate"; status->code = hybridse::common::kUnsupportSql; return false; } @@ -356,12 +360,12 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n } } if (!has_generate_index) { - status->msg = "CREATE common: can not found index col"; + status->msg = "can not found index col"; status->code = hybridse::common::kUnsupportSql; return false; } } else { - status->msg = "CREATE common: INDEX KEY empty"; + status->msg = "INDEX KEY empty"; status->code = hybridse::common::kUnsupportSql; return false; } @@ -401,7 +405,7 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n auto p_meta_node = dynamic_cast(partition_meta); const std::string& ep = p_meta_node->GetEndpoint(); if (endpoint_set.count(ep) > 0) { - status->msg = "CREATE common: partition meta endpoint duplicate"; + status->msg = "partition meta endpoint duplicate"; status->code = hybridse::common::kUnsupportSql; return false; } @@ -413,7 +417,7 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n } else if (p_meta_node->GetRoleType() == hybridse::node::kFollower) { meta->set_is_leader(false); } else { - status->msg = "CREATE common: role_type " + + status->msg = "role_type " + hybridse::node::RoleTypeName(p_meta_node->GetRoleType()) + " not support"; status->code = hybridse::common::kUnsupportSql; return false; @@ -475,7 +479,7 @@ bool NodeAdapter::TransformToColumnKey(hybridse::node::ColumnIndexNode* column_i std::transform(ttl_type.begin(), ttl_type.end(), ttl_type.begin(), ::tolower); openmldb::type::TTLType type; if (!::openmldb::codec::SchemaCodec::TTLTypeParse(ttl_type, &type)) { - status->msg = "CREATE common: ttl_type " + column_index->ttl_type() + " not support"; + status->msg = "ttl_type " + column_index->ttl_type() + " not support"; status->code = hybridse::common::kUnsupportSql; return false; } @@ -485,7 +489,7 @@ bool NodeAdapter::TransformToColumnKey(hybridse::node::ColumnIndexNode* column_i } if (ttl_st->ttl_type() == openmldb::type::kAbsoluteTime) { if (column_index->GetAbsTTL() == -1 || column_index->GetLatTTL() != -2) { - status->msg = "CREATE common: abs ttl format error or set lat ttl"; + status->msg = "abs ttl format error or set lat ttl"; status->code = hybridse::common::kUnsupportSql; return false; } @@ -498,7 +502,7 @@ bool NodeAdapter::TransformToColumnKey(hybridse::node::ColumnIndexNode* column_i } } else if (ttl_st->ttl_type() == openmldb::type::kLatestTime) { if (column_index->GetLatTTL() == -1 || column_index->GetAbsTTL() != -2) { - status->msg = "CREATE common: lat ttl format error"; + status->msg = "lat ttl format error"; status->code = hybridse::common::kUnsupportSql; return false; } @@ -510,7 +514,7 @@ bool NodeAdapter::TransformToColumnKey(hybridse::node::ColumnIndexNode* column_i } } else { if (column_index->GetAbsTTL() == -1) { - status->msg = "CREATE common: abs ttl format error for " + type::TTLType_Name(ttl_st->ttl_type()); + status->msg = "abs ttl format error for " + type::TTLType_Name(ttl_st->ttl_type()); status->code = hybridse::common::kUnsupportSql; return false; } @@ -520,7 +524,7 @@ bool NodeAdapter::TransformToColumnKey(hybridse::node::ColumnIndexNode* column_i ttl_st->set_abs_ttl(base::AbsTTLConvert(column_index->GetAbsTTL(), true)); } if (column_index->GetLatTTL() == -1) { - status->msg = "CREATE common: lat ttl format error for " + type::TTLType_Name(ttl_st->ttl_type()); + status->msg = "lat ttl format error for " + type::TTLType_Name(ttl_st->ttl_type()); status->code = hybridse::common::kUnsupportSql; return false; } @@ -535,7 +539,7 @@ bool NodeAdapter::TransformToColumnKey(hybridse::node::ColumnIndexNode* column_i if (!column_names.empty()) { auto it = column_names.find(column_index->GetTs()); if (it == column_names.end()) { - status->msg = "CREATE common: TS NAME " + column_index->GetTs() + " not exists"; + status->msg = "TS NAME " + column_index->GetTs() + " not exists"; status->code = hybridse::common::kUnsupportSql; return false; } diff --git a/src/test/util.cc b/src/test/util.cc index 59a772eed78..ed07eb642d4 100644 --- a/src/test/util.cc +++ b/src/test/util.cc @@ -280,5 +280,40 @@ std::string TempPath::CreateTempPath(const std::string& prefix) { return path; } +api::TableMeta CreateTableMeta(const std::string& name, uint32_t tid, uint32_t pid, + uint64_t abs_ttl, uint64_t lat_ttl, + bool leader, const std::vector& endpoints, + const ::openmldb::type::TTLType& type, uint32_t seg_cnt, uint64_t term, + ::openmldb::type::CompressType compress_type, + ::openmldb::common::StorageMode storage_mode) { + api::TableMeta table_meta; + table_meta.set_name(name); + table_meta.set_tid(tid); + table_meta.set_pid(pid); + table_meta.set_compress_type(compress_type); + table_meta.set_seg_cnt(seg_cnt); + table_meta.set_storage_mode(storage_mode); + if (leader) { + table_meta.set_mode(::openmldb::api::TableMode::kTableLeader); + table_meta.set_term(term); + } else { + table_meta.set_mode(::openmldb::api::TableMode::kTableFollower); + } + for (size_t i = 0; i < endpoints.size(); i++) { + table_meta.add_replicas(endpoints[i]); + } + ::openmldb::common::ColumnDesc* column_desc = table_meta.add_column_desc(); + column_desc->set_name("idx0"); + column_desc->set_data_type(::openmldb::type::kString); + ::openmldb::common::ColumnKey* index = table_meta.add_column_key(); + index->set_index_name("idx0"); + index->add_col_name("idx0"); + ::openmldb::common::TTLSt* ttl = index->mutable_ttl(); + ttl->set_abs_ttl(abs_ttl); + ttl->set_lat_ttl(lat_ttl); + ttl->set_ttl_type(type); + return table_meta; +} + } // namespace test } // namespace openmldb diff --git a/src/test/util.h b/src/test/util.h index db466995dde..02bd3fd2a04 100644 --- a/src/test/util.h +++ b/src/test/util.h @@ -100,6 +100,14 @@ std::string GetExeDir(); std::string GetParentDir(const std::string& path); +api::TableMeta CreateTableMeta(const std::string& name, uint32_t tid, uint32_t pid, + uint64_t abs_ttl, uint64_t lat_ttl, + bool leader, const std::vector& endpoints, + const ::openmldb::type::TTLType& type, uint32_t seg_cnt, uint64_t term, + ::openmldb::type::CompressType compress_type, + common::StorageMode storage_mode = ::openmldb::common::kMemory); + + } // namespace test } // namespace openmldb #endif // SRC_TEST_UTIL_H_ From e796978518bdb0148d7bb047eeb58f28af63bf9c Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Mon, 4 Sep 2023 14:58:29 +0800 Subject: [PATCH 040/111] docs: update the about section (#3447) --- docs/en/about/community.md | 28 ++++++++++++++++++++++++++++ docs/en/about/index.rst | 7 ++++--- docs/en/about/milestones.md | 37 ------------------------------------- 3 files changed, 32 insertions(+), 40 deletions(-) create mode 100644 docs/en/about/community.md delete mode 100644 docs/en/about/milestones.md diff --git a/docs/en/about/community.md b/docs/en/about/community.md new file mode 100644 index 00000000000..6d76249a3b9 --- /dev/null +++ b/docs/en/about/community.md @@ -0,0 +1,28 @@ +# Community and support + +If you have any inquiries, please feel free to ask at any time for professional technical support. We welcome you to join the OpenMLDB community for collaborations! + +## Resources + +Here are the various platforms and channels: +- [OpenMLDB official blogs](https://openmldb.ai/en/blog): We publish blogs related to product updates, event updates, technical details, meetup reviews, and professional interviews. +- [GitHub repo](https://github.com/4paradigm/OpenMLDB): The GitHub repository hosting the open-sourced code. +- [GitHub Issues](https://github.com/4paradigm/OpenMLDB/issues): To submit bug reports and feedback on product requirements. +- [GitHub Discussions](https://github.com/4paradigm/OpenMLDB/discussions): To discuss any topics related to OpenMLDB. +- [Developer email groups and mailing lists](https://groups.google.com/g/openmldb-developers). +- Email: You can reach out to OpenMLDB via email at [contact@openmldb.ai](https://partner.outlook.cn/mail/deeplink/compose?mailtouri=mailto%3Acontact@openmldb.ai). +- [Slack](https://join.slack.com/t/openmldb/shared_invite/zt-ozu3llie-K~hn9Ss1GZcFW2~K_L5sMg). +- WeChat official OpenMLDB account and WeChat chat group (for Chinese users): Scan the QR Code to join the Chinese WeChat chat group. + +![wechat](images/wechat.png) + + +## Contribute to OpenMLDB + +OpenMLDB is a result of the collective efforts of all contributors for which we express our sincere gratitude! +- If you are interested in becoming an OpenMLDB contributor, please read the [Contribution Guidelines](https://github.com/4paradigm/OpenMLDB/blob/main/CONTRIBUTING.md) before submitting your code. +- To understand the different levels of open-source tasks, you can refer to [The Different Levels of Developer Documentation](https://go005qabor.feishu.cn/docs/doccn7oEU0AlCOGtYz09chIebzd). +- If you are new, you can start by exploring the [Good First Issue](https://github.com/4paradigm/OpenMLDB/issues?q=is%3Aopen+is%3Aissue+label%3A"good+first+issue") list. +- For contributors with more experience, please check the issues tagged with [Call-for-Contributions](https://github.com/4paradigm/OpenMLDB/issues?q=is%3Aopen+is%3Aissue+label%3Acall-for-contributions). +- We have also created a [User List](https://github.com/4paradigm/OpenMLDB/discussions/707) where community users can provide feedback, share use cases, opinions, or any other feedback related to OpenMLDB. +- If you would like to understand the OpenMLDB product planning, you can refer to our [Roadmap](https://github.com/4paradigm/OpenMLDB/projects/10) and leave your comments. diff --git a/docs/en/about/index.rst b/docs/en/about/index.rst index 84875542a5b..175d1a9720d 100644 --- a/docs/en/about/index.rst +++ b/docs/en/about/index.rst @@ -5,7 +5,8 @@ About .. toctree:: :maxdepth: 1 - intro - milestones - release_notes + intro + community + milestones + change_logs diff --git a/docs/en/about/milestones.md b/docs/en/about/milestones.md deleted file mode 100644 index 196835db86c..00000000000 --- a/docs/en/about/milestones.md +++ /dev/null @@ -1,37 +0,0 @@ -# Milestones - -## 1. History - -OpenMLDB originated as an important module of the commercial AI platform Sage from [4Paradigm](https://www.4paradigm.com), an industry-leading artificial intelligence platform and service provider. The AI platform Sage covers the complete life cycle of MLOps, including data governance, feature engineering, model training, inference, and model management. The product has been deployed in hundreds of enterprise-grade scenarios. - -In 2021, the development team abstracted, enhanced, and added more community-friendly features to the core module of data governance and feature engineering in the commercial products, and finally made it publicly available as an open-source project OpenMLDB, which provides a feature platform for machine learning applications. Today, OpenMLDB grows based on the open source and open community, and hopes to help more enterprises complete the AI transformation with low cost and high quality. - -## 2. Milestones - -### 2017.2 - 2021.5: The Commercial Product MLDB - -- 2017.2: The first code commit -- 2017.9: The first financial industry customer, China Guangfa Bank -- 2019.8: The first retail industry customer, Yum China -- 2020.12: The number of deployed scenarios exceeds 100 - -### 2021.6 - Today: The Open-Source Project OpenMLDB - -- 2021.6: Machine learning database OpenMLDB officially announced open source, providing a production-ready feature platform for machine learning -- 2021.7: v0.2.0 released, supporting RestAPI access, code style and comments improved -- 2021.8: OpenMLDB-based optimization innovation paper is published at VLDB 2021, the top international academic conference on databases -- 2021.8: Recognized by Gitee and awarded the title of GVP (Gitee Most Valuable Project) -- 2021.9: The first community-based enterprise user, [Akulaku](https://www.akulaku.com/) -- 2021.9: Won the "Open Source Community and Open Source Project" award from the Academy of Information and Communications Technology -- 2021.11: v0.3.0 released, supporting standalone mode for rapid deployment -- 2021.12: OpenMLDB Contributor Program launched -- 2021.12: Host the first Feature Store Meetup in China -- 2022.1: v0.4.0 released, enhancing the SQL-centric development experience, introducing the new online monitoring module -- 2022.1: OpenMLDB first community meeting -- 2022.5: v0.5.0 released, supporting long window and persistent storage engine, registering udf from external dynamic library - -## 3. Roadmap - -In the future, we will aggressively embrace the technologies that can effectively reduce the total cost of adopting machine learning, such as cloud-native and AutoML. - -For the roadmap of recent releases, please refer to our public page of [Roadmap](https://github.com/4paradigm/OpenMLDB/projects/10). From 0fa0fe92312a8ee8d8f1580c8b75a9bb0d93be31 Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Mon, 4 Sep 2023 15:15:05 +0800 Subject: [PATCH 041/111] docs: add deploy documentation (#3463) --- docs/en/deploy/index.rst | 2 + .../en/deploy/offline_integrate_kubernetes.md | 70 ++++++++++++++ docs/en/tutorial/index.rst | 1 + docs/en/tutorial/online_offline_sync.md | 92 +++++++++++++++++++ 4 files changed, 165 insertions(+) create mode 100644 docs/en/deploy/offline_integrate_kubernetes.md create mode 100644 docs/en/tutorial/online_offline_sync.md diff --git a/docs/en/deploy/index.rst b/docs/en/deploy/index.rst index 04c5e257d51..11f12343dcd 100644 --- a/docs/en/deploy/index.rst +++ b/docs/en/deploy/index.rst @@ -9,4 +9,6 @@ Deployment conf compile integrate_hadoop + offline_integrate_kubernetes + [Alpha] Online engine based on Kubernetes deployment diff --git a/docs/en/deploy/offline_integrate_kubernetes.md b/docs/en/deploy/offline_integrate_kubernetes.md new file mode 100644 index 00000000000..6e5d2b0658e --- /dev/null +++ b/docs/en/deploy/offline_integrate_kubernetes.md @@ -0,0 +1,70 @@ +# [Alpha] Offline engine using Kubernetes backend (optional) + +## Introduction + +The OpenMLDB offline engine offers support for the integration of Kubernetes services. Users can configure Kubernetes clusters to schedule and execute offline tasks and utilize distributed storage services like HDFS to handle offline data management. + +## Deploy Kubernetes + +- To deploy Kubernetes in either stand-alone or cluster: please refer to [Kubernetes official documentation](https://kubernetes.io/docs/home/) + +- Deploy Kubernetes operator for Apache Spark: please refer to the [spark-on-k8s-operator official documentation](https://github.com/GoogleCloudPlatform/spark-on-k8s-operator). Below is an example of `Helm` deploying to the `default` command space, which can modify command space and permission information as needed. + +``` +helm install my-release spark-operator/spark-operator --namespace default --create-namespace --set webhook.enable=true + +kubectl create serviceaccount spark --namespace default + +kubectl create clusterrolebinding binding --clusterrole=edit --serviceaccount=default:spark +``` + +Once you have successfully deployed the spark operator, you can utilize the provided code examples to test the submission of Spark tasks and verify if they execute properly. + +## HDFS Support + +If you want to configure Kubernetes tasks to access HDFS data, you will need to prepare a Hadoop configuration file and create a ConfigMap beforehand. An example command is shown below, you can modify the ConfigMap name and file path accordingly. + +``` +kubectl create configmap hadoop-config --from-file=/tmp/hadoop/etc/ +``` + +## Configure Kubernetes with TaskManager + +You can specify Kubernetes configurations in the TaskManager configuration file. The relevant configurations are outlined below. + +| Config | Type | Note | +| ------ | ---- | ---- | +| spark.master | String | Supports "kuberenetes" or "k8s" | +| offline.data.prefix | String | Recommended to use HDFS path | +| k8s.hadoop.configmap | String | Default setting as "hadoop-config" | +| k8s.mount.local.path | String | Default setting as "/tmp" | + +When in Kubernetes mode, it is recommended to configure the offline storage path as HDFS path, to ensure smooth execution in the cluster. Failure to do so may result in failure to read/write data. An example of the configuration is provided below. + +``` +offline.data.prefix=hdfs:///foo/bar/ +``` + +## Submission and management of the task + +Once you have configured TaskManager and Kubernetes, you can submit offline tasks through command line. The process is similar to using Local or Yarn mode. It can be used in SQL CLI and SDKs of various languages. + +Here is an example of submitting a load data task. + +``` +LOAD DATA INFILE 'hdfs:///hosts' INTO TABLE db1.t1 OPTIONS(delimiter = ',', mode='overwrite'); +``` + +Checking of Hadoop ConfigMap content. + +``` +kubectl get configmap hdfs-config -o yaml +``` + +Checking of Spark task and Pod content and log. + +``` +kubectl get SparkApplication + +kubectl get pods +``` diff --git a/docs/en/tutorial/index.rst b/docs/en/tutorial/index.rst index 4c5e2ab266e..fbbd84eda26 100644 --- a/docs/en/tutorial/index.rst +++ b/docs/en/tutorial/index.rst @@ -13,3 +13,4 @@ Tutorials openmldbspark_distribution autofe common_architecture + online_offline_sync diff --git a/docs/en/tutorial/online_offline_sync.md b/docs/en/tutorial/online_offline_sync.md new file mode 100644 index 00000000000..b84881c35d1 --- /dev/null +++ b/docs/en/tutorial/online_offline_sync.md @@ -0,0 +1,92 @@ +# Online-offline data synchronization + +Online-offline data synchronization involves taking online data and synchronizing it to an offline location. The offline location refers to a large capacity persistent storage location, which users can specify, and is not limited to the offline data location of OpenMLDB table. Currently, we only support disk table synchronization and support only writing to the HDFS cluster. + +To enable online-offline synchronization, DataCollector and SyncTool are required to be deployed. For SyncTool, only a single deployment is supported. For DataCollector, it is required to be deployed on all the machines that have TabletServer deployed. For example, It is possible to have multiple TabletServers on a single machine, and the synchronization task will utilize the DataCollector deployed on that particular machine. If additional DataCollectors are deployed, they will not be in function until the currently running DataCollector is offline, after which another one will take over. + +Although SyncTool supports single deployment, it can resume the work progress without requiring any additional actions when it restarts. + +## Deployment method + +To ensure proper functionality, it is important to note that SyncTool might attempt to allocate synchronization tasks even if there is no active DataCollector if it is started first. Therefore, it is recommended to start all the DataCollectors before starting SyncTool. + +Online-offline synchronization requires the version of TabletServer to be newer than 0.7.3. It is crucial not to use an older version of TabletServer for synchronization purposes. DataCollector is in `bin` and SyncTool is in `synctool`. Both can be started by `bin/start.sh`. + +### DataCollector + +#### Configuration (Important) + +Update `/conf/data_collector.flags` configuration file. Ensure that you have entered the correct ZooKeeper (zk) location and path in the configuration. Additionally, make sure that the 'endpoint' configuration does not conflict with any ports. It is crucial for the endpoint to be consistent with the TabletServer configuration. If the TabletServer uses the local public IP and the DataCollector endpoint uses 127.0.0.1, automatic conversion will not occur. + +Pay close attention when selecting the `collector_datadir`. Since we will be setting up hard link to the disk data of the TabletServer during synchronization, the `collector_datadir` should be on the same disk as the data location of the TabletServer's `hdd_root_path`/`ssd_root_path`. Otherwise, an error `Invalid cross-device link` will occur. + +The default value for `max_pack_size` is set to 1M. If there are too many synchronization tasks, you may encounter the error message `[E1011]The server is overcrowded`. In such cases, it is recommended to reduce this parameter. Additionally, you can adjust the `socket_max_unwritten_bytes` parameter to increase the write cache tolerance. + +#### Start + +``` +./bin/start.sh start data_collector +``` +#### Check status + +Run the command after starting to get the real-time DataCollector RPC status. If it fails to show, please check the log. +``` +curl http:///status +``` +Currently, it is not possible to directly query the list of `DataCollector` instances. However, support for this functionality will be included in future updates of the relevant tools. + +### SyncTool + +#### Configuration +- To update, please modify the `/conf/synctool.properties` configuration file. This will overwrite `/synctool/conf/synctool.properties` when start. +- Currently, the SyncTool only supports direct writing to HDFS. To configure the HDFS connections, you can modify the `hadoop.conf.dir` parameter in the properties file or set the `HADOOP_CONF_DIR` environment variable. Ensure that the OS startup user of SyncTool has write access to the HDFS path specified when creating each synchronization task. + + Once the configurations have been updated, you can proceed with starting the tool. + +#### Start +``` +./bin/start.sh start synctool +``` + +Currently, SyncTool operates as a single process. If multiple instances are started, they operate independently of each other. It is the user's responsibility to ensure that there are no duplicated synchronization tasks. SyncTool saves the progress of the processes in real-time, allowing for immediate recovery if a process goes offline. + +SyncTool manages synchronization tasks, collects data, and writes it to offline locations. When a user submits a "table synchronization task", SyncTool divides it into multiple "sharded synchronization tasks" (referred to as subtasks) for creation and management. + +In task management, if a DataCollector instance goes offline or encounters an error, SyncTool will request it to recreate the task. If a suitable DataCollector is not available for task reassignment, the task will be marked as failed. If we don't do this, SyncTool will continue to attempt task recreation, which can result in slow progress and make it difficult to identify errors. Therefore, in order to better identify errors, we mark the task as failed. + +Since the creation of a table synchronization task does not support starting from a specific point, it is not advisable to delete and recreate the task. Doing so may result in duplicated data if the destination is the same. Instead, consider changing the synchronization destination or restarting SyncTool. During the recovery process, SyncTool does not check if the subtask has previously failed, but rather starts the task in an "init" state. + +#### SyncTool Helper + +For create, delete, and query synchronizing tasks, please use `/tools/synctool_helper.py`. + +```bash +# create +python tools/synctool_helper.py create -t db.table -m 1 -ts 233 -d /tmp/hdfs-dest [ -s ] +# delete +python tools/synctool_helper.py delete -t db.table [ -s ] +# task status +python tools/synctool_helper.py status [ -s ] +# sync tool status for dev +python tools/synctool_helper.py tool-status [ -f ] +``` + + +To configure the Mode setting, you can choose between 0, 1, or 2. Each mode corresponds to a different type of synchronization: + +- Mode 0: Full synchronization (FULL) +- Mode 1: Incremental synchronization based on time (INCREMENTAL_BY_TIMESTAMP). Use `-ts` to configure the start time, and data prior to this time will not be synchronized. +- Mode 2: Full and continuous incremental synchronization (FULL_AND_CONTINUOUS) + +In Mode 0, there is no strict end time. Each subtask will synchronize the current data and then terminate, deleting the entire table task. If a helper is used to query the status and no synchronization task is found for the table, it indicates that the synchronization task for that table has been completed. However, Mode 1 and 2 will continue running indefinitely. + +When executing the `status` command, the status of each partition task will be displayed. If you only need an overview, you can focus on the content after the `table scope`, which shows the synchronization task status at the table level. If there are any `FAILED` subtasks for a table, it will be indicated. + +Pay attention to the `status` field for each subtask. If it has just started and hasn't received the first data synchronization from the DataCollector, it will be in the INIT state. Once it receives the first data synchronization, it will change to the RUNNING state. When SyncTool restarts, if the synchronization task resumes, it will enter the RUNNING state directly. The task may enter the REASSIGNING state temporarily during the process, which is an intermediate state and doesn't mean the task is no longer available. In Mode 0, a SUCCESS status may appear, indicating that the task has been completed. Once all subtasks for a table are completed, SyncTool will automatically remove the tasks, and the tasks of the table will not be found when using a helper to query. + +Only the `FAILED` status indicates that the subtask has failed and will not be retried or deleted automatically. After identifying the cause of the failure and fixing it, you can delete and restart the synchronization task. If you don't want to lose the progress, you can restart SyncTool to allow it to continue the recovery task and resume synchronization. However, be aware that this may result in duplicated data. + +## Functional boundaries + +DataCollector does not mark the progress (snapshot progress) uniquely. If a subtask shuts down midway and a new task is created with the current progress, it may result in duplicated data. +In SyncTool, data is first written to HDFS and then the progress is saved. If SyncTool shuts down during this process, and the progress has not been updated, it may result in duplicated data. From b7d6edcb3d4280c4bad710ddbda31bc23072f958 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Fri, 8 Sep 2023 13:07:45 +0800 Subject: [PATCH 042/111] feat: use user sync timeout when it > default (#3484) * feat: use user sync timeout when it > default * fix doc --- docs/en/reference/sql/ddl/SET_STATEMENT.md | 4 +++- docs/zh/openmldb_sql/ddl/SET_STATEMENT.md | 8 +++++--- docs/zh/quickstart/cli.md | 2 ++ docs/zh/quickstart/sdk/java_sdk.md | 2 ++ docs/zh/quickstart/sdk/python_sdk.md | 2 ++ src/sdk/sql_cluster_router.cc | 8 ++++++-- 6 files changed, 20 insertions(+), 6 deletions(-) diff --git a/docs/en/reference/sql/ddl/SET_STATEMENT.md b/docs/en/reference/sql/ddl/SET_STATEMENT.md index abb570a4eca..c2e8416fc67 100644 --- a/docs/en/reference/sql/ddl/SET_STATEMENT.md +++ b/docs/en/reference/sql/ddl/SET_STATEMENT.md @@ -158,7 +158,9 @@ CREATE TABLE t1 (col0 STRING, col1 int, std_time TIMESTAMP, INDEX(KEY=col1, TS=s ```{caution} If offline sync job is longer than 30min(the default timeout for offline sync job), you should change the config of TaskManager and client. - set `server.channel_keep_alive_time` bigger in TaskManager config file. -- set `--sync_job_timeout` of sql client, less than `server.channel_keep_alive_time`. SDK can't change the config now. +- choose one: + - set a bigger session job_timeout, we'll use `max(session_job_timeout, default_gflag_sync_job_timeout)`. + - set `--sync_job_timeout` of sql client, less than `server.channel_keep_alive_time`. SDK can't change the config now. ``` - Set the waiting time for offline async commands or offline admin commands (in milliseconds): diff --git a/docs/zh/openmldb_sql/ddl/SET_STATEMENT.md b/docs/zh/openmldb_sql/ddl/SET_STATEMENT.md index 00e14200b22..0284e37e19f 100644 --- a/docs/zh/openmldb_sql/ddl/SET_STATEMENT.md +++ b/docs/zh/openmldb_sql/ddl/SET_STATEMENT.md @@ -148,7 +148,7 @@ CREATE TABLE t1 (col0 STRING, col1 int, std_time TIMESTAMP, INDEX(KEY=col1, TS=s ### 离线命令配置详情 -- 设置离线命令同步执行,同步的超时时间将自动设置为30min(gflag `sync_job_timeout`,同时也是与TaskManager的最大超时时间,仅手动设置更大的此超时时间是无意义的): +- 设置离线命令同步执行,同步的超时时间将自动设置为30min(gflag `sync_job_timeout`,同时也是与TaskManager的最大超时时间),通常情况不用手动设置`job_timeout`: ```sql > SET @@sync_job = "true"; @@ -156,8 +156,10 @@ CREATE TABLE t1 (col0 STRING, col1 int, std_time TIMESTAMP, INDEX(KEY=col1, TS=s ```{caution} 如果离线同步命令执行时间超过30min,需要同时调整TaskManager配置和客户端的配置。 -- 调大TaskManager的`server.channel_keep_alive_time` -- 配置客户端`--sync_job_timeout`,不可大于`server.channel_keep_alive_time`。SDK暂不支持修改。 +- 调大TaskManager的`server.channel_keep_alive_time`,单位为秒。 +- 二选一: + - 手动设置更大的会话超时时间,我们会使用`max(session_job_timeout, default_gflag_sync_job_timeout)`。 + - 配置客户端`--sync_job_timeout`,不可大于`server.channel_keep_alive_time`,不用手动`SET`。SDK暂不支持修改。 ``` - 设置离线异步命令或离线管理命令的等待时间,单位为毫秒,默认为1min: diff --git a/docs/zh/quickstart/cli.md b/docs/zh/quickstart/cli.md index 787ce2203d1..fb644b32a6c 100644 --- a/docs/zh/quickstart/cli.md +++ b/docs/zh/quickstart/cli.md @@ -5,6 +5,8 @@ CLI,指OpenMLDB的shell客户端,使用发布包`bin`中的binary程序`open 如果是使用sbin部署的集群,可以使用sbin中的openmldb-cli.sh脚本启动CLI,脚本会自动填充参数。例如,在demo集群中,启动CLI的命令为`OPENMLDB_MODE=cluster /work/openmldb/sbin/openmldb-cli.sh`。 ``` +CLI默认执行模式为离线,其他SDK的默认可能不同。 + 本文将介绍常用的一些CLI可配置项与便利的非交互式使用方法,完整的可配置项见`bin/openmldb --help`。 ## 基本使用 diff --git a/docs/zh/quickstart/sdk/java_sdk.md b/docs/zh/quickstart/sdk/java_sdk.md index 17e5019a5b3..3f8534518b4 100644 --- a/docs/zh/quickstart/sdk/java_sdk.md +++ b/docs/zh/quickstart/sdk/java_sdk.md @@ -1,5 +1,7 @@ # Java SDK +Java SDK中,JDBC Statement的默认执行模式为在线,SqlClusterExecutor的默认执行模式则是离线,请注意。 + ## Java SDK 包安装 - Linux 下 Java SDK 包安装 diff --git a/docs/zh/quickstart/sdk/python_sdk.md b/docs/zh/quickstart/sdk/python_sdk.md index 9a4640f7528..69544b81db7 100644 --- a/docs/zh/quickstart/sdk/python_sdk.md +++ b/docs/zh/quickstart/sdk/python_sdk.md @@ -1,5 +1,7 @@ # Python SDK +Python SDK默认执行模式为在线。 + ## Python SDK 包安装 执行以下命令安装 Python SDK 包: diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 7e593d8b359..022e5664f7c 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -2410,9 +2410,13 @@ std::shared_ptr SQLClusterRouter::ExecuteSQL(const std std::shared_ptr SQLClusterRouter::ExecuteSQL(const std::string& db, const std::string& sql, hybridse::sdk::Status* status) { - // To avoid setting sync job timeout by user, we set offline_job_timeout to the biggest value + // To avoid small sync job timeout, we set offline_job_timeout to the biggest value, user can set > + // FLAGS_sync_job_timeout auto sync_job = IsSyncJob(); - auto timeout = sync_job ? FLAGS_sync_job_timeout : GetJobTimeout(); + auto timeout = GetJobTimeout(); + if (sync_job && FLAGS_sync_job_timeout > timeout) { + timeout = FLAGS_sync_job_timeout; + } return ExecuteSQL(db, sql, IsOnlineMode(), sync_job, timeout, status); } From 21f98d4f7308bfbc2824242d33c69a47da89b40e Mon Sep 17 00:00:00 2001 From: dl239 Date: Fri, 8 Sep 2023 13:47:40 +0800 Subject: [PATCH 043/111] docs: add cluster restart docs (#3498) --- docs/zh/maintain/backup.md | 2 +- docs/zh/maintain/index.rst | 3 +- docs/zh/maintain/multi_cluster.md | 4 +- docs/zh/maintain/openmldb_ops.md | 2 +- docs/zh/maintain/restart.md | 184 ++++++++++++++++++++++++++++++ docs/zh/maintain/update_conf.md | 9 +- docs/zh/maintain/upgrade.md | 17 ++- docs/zh/openmldb_sql/notice.md | 2 +- 8 files changed, 209 insertions(+), 14 deletions(-) create mode 100644 docs/zh/maintain/restart.md diff --git a/docs/zh/maintain/backup.md b/docs/zh/maintain/backup.md index 2d0ddb43ae5..2b05251e334 100644 --- a/docs/zh/maintain/backup.md +++ b/docs/zh/maintain/backup.md @@ -1,4 +1,4 @@ -# 高可用 +# 高可用和恢复 ## 最佳实践 diff --git a/docs/zh/maintain/index.rst b/docs/zh/maintain/index.rst index 8dc28ecfb18..a114cccef15 100644 --- a/docs/zh/maintain/index.rst +++ b/docs/zh/maintain/index.rst @@ -5,11 +5,12 @@ .. toctree:: :maxdepth: 1 - upgrade + restart update_conf backup scale monitoring + upgrade cli status multi_cluster diff --git a/docs/zh/maintain/multi_cluster.md b/docs/zh/maintain/multi_cluster.md index e9873f97e75..9729e633342 100644 --- a/docs/zh/maintain/multi_cluster.md +++ b/docs/zh/maintain/multi_cluster.md @@ -1,4 +1,4 @@ -# [Alpha] 跨机房容灾方案 +# [Alpha] 跨机房容灾 ## 背景 @@ -177,4 +177,4 @@ switchmode leader 目前主从集群方案在实验阶段的 alpha 特性,其核心功能都已经开发完毕,并且进行了充分的测试。目前主要遗留问题为: -- SQL 命令目前只有创建表、删除表、以及数据插入操作可以主从集群自动同步,其余命令(比如 SQL 上线,修改 TTL 等)目前尚不支持自动同步,需要手动在主从集群上分别执行。 \ No newline at end of file +- SQL 命令目前只有创建表、删除表、以及数据插入操作可以主从集群自动同步,其余命令(比如 SQL 上线,修改 TTL 等)目前尚不支持自动同步,需要手动在主从集群上分别执行。 diff --git a/docs/zh/maintain/openmldb_ops.md b/docs/zh/maintain/openmldb_ops.md index 84b45afde23..31c4db3a8aa 100644 --- a/docs/zh/maintain/openmldb_ops.md +++ b/docs/zh/maintain/openmldb_ops.md @@ -1,4 +1,4 @@ -# OpenMLDB运维工具 +# 运维工具 ## 概述 diff --git a/docs/zh/maintain/restart.md b/docs/zh/maintain/restart.md new file mode 100644 index 00000000000..61813bf7921 --- /dev/null +++ b/docs/zh/maintain/restart.md @@ -0,0 +1,184 @@ +# 集群启停 +OpenMLDB集群目前有两种部署方式,[一键部署和手动部署](../deploy/install_deploy.md)。本文针对这两种不同的部署方式,分别描述启停步骤。注意,请不要将两种部署方式的的启停方法混合使用,可能会导致不可预知的问题。 + +```{important} +如果是第一次部署和启动集群,请参考完整的[安装部署文档](../deploy/install_deploy.md),需要额外的配置和注意事项。本文针对已经完成部署的集群,因为各类原因(比如例行维护、升级、配置更新等),而涉及到启动、停止、重启操作的场景。 +``` + + +## 一键部署的集群 + +### 启动集群 + +到部署集群的目录执行,确保该目录下 conf/hosts 文件内容和实际各组件的部署信息一致 + +``` +sbin/start-all.sh +``` + +### 停止集群 + +到部署集群的目录执行,确保该目录下 conf/hosts 文件内容和实际各组件的部署信息一致 +``` +sbin/stop-all.sh +``` + +## 手动部署的集群 + +### 启动集群 + +**1. 启动TabletServer** + +到每一个部署 TabletServer 节点的部署目录里执行如下命令 + +``` +bash bin/start.sh start tablet +``` + +启动后应有`success`提示,如下所示。 + +``` +Starting tablet ... +Start tablet success +``` + +**2. 启动 NameServer** + +到每一个部署 NameServer 节点的部署目录里执行如下命令 + +``` +bash bin/start.sh start nameserver +``` + +启动后应有`success`提示,如下所示。 + +``` +Starting nameserver ... +Start nameserver success +``` + +**3. 启动 TaskManager** + +如果没有部署 TaskManager 可以跳过此步 +到每一个部署 TaskManager 节点的部署目录里执行如下命令 + +``` +bash bin/start.sh start taskmanager +``` + +**4. 启动 APIServer** + +如果没有部署 APIServer 可以跳过此步 +到每一个部署 APIServer 节点的部署目录里执行如下命令 + +``` +bash bin/start.sh start apiserver +``` + +启动后应有`success`提示,如下所示。 + +``` +Starting apiserver ... +Start apiserver success +``` + +**5. 检查服务是否启动** + +启动 sql_client,其中`zk_cluster`和`zk_root_path`的值替换为配置文件中对应的值 + +```bash +./bin/openmldb --zk_cluster=172.27.2.52:12200 --zk_root_path=/openmldb --role=sql_client +``` + +然后执行如下命令 + +``` +show components; +``` + +结果应类似下表,包含所有集群的组件(APIServer除外)。 + +``` +------------------- ------------ --------------------- -------- --------- + Endpoint Role Connect_time Status Ns_role + ------------------- ------------ --------------------- -------- --------- + 172.24.4.39:10821 tablet 2023-09-01 11:36:58 online NULL + 172.24.4.40:10821 tablet 2023-09-01 11:36:57 online NULL + 172.24.4.56:10821 tablet 2023-09-01 11:36:58 online NULL + 172.24.4.40:7520 nameserver 2023-09-01 11:36:59 online master + ------------------- ------------ --------------------- -------- --------- + +4 rows in set +``` + +**6. 开启 auto_failover** + +启动 ns_client,其中`zk_cluster`和`zk_root_path`的值替换为配置文件中对应的值 + +``` +./bin/openmldb --zk_cluster=172.27.2.52:12200 --zk_root_path=/openmldb --role=ns_client +``` + +执行如下命令 + +``` +confset auto_failover true +``` + +**7. 恢复数据** + +使用OpenMLDB运维工具中的一键数据恢复来恢复数据。关于运维工具的使用和说明参考[OpenMLDB运维工具](./openmldb_ops.md) + +到任意一个OpenMLDB的部署目录中执行如下命令,其中`zk_cluster`和`zk_root_path`的值替换为配置文件中对应的值。此命令只需要执行一次,执行过程中不要中断 + +``` +python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.27.2.52:12200 --zk_root_path=/openmldb --cmd=recoverdata +``` + +### 停止集群 + +**1. 关闭 auto_failover** + +启动 ns_client,其中`zk_cluster`和`zk_root_path`的值替换为配置文件中对应的值 +``` +./bin/openmldb --zk_cluster=172.27.2.52:12200 --zk_root_path=/openmldb --role=ns_client +``` +执行如下命令 +``` +confset auto_failover false +``` + +**2. 停止 TabletServer** + +到每一个部署 TabletServer 节点的部署目录里执行如下命令 +``` +bash bin/start.sh stop tablet +``` +**3. 停止 NameServer** + +到每一个部署 NameServer 节点的部署目录里执行如下命令 +``` +bash bin/start.sh stop nameserver +``` +**4. 停止 TaskManager** + +如果没有部署 TaskManager 可以跳过此步 +到每一个部署 TaskManager 节点的部署目录里执行如下命令 +``` +bash bin/start.sh stop taskmanager +``` + +**5. 停止 APIServer** + +如果没有部署 APIServer 可以跳过此步 +到每一个部署 TaskManager 节点的部署目录里执行如下命令 +``` +bash bin/start.sh stop apiserver +``` + +## 集群重启 + +集群重启分为两种情况,一种是对于版本升级或者更新配置文件需要,进行集群重启;还有一种是不需要进行升级和配置,正常状态下的重启(比如例行维护)。 + +- 版本升级或者更新配置文件:具体步骤查看相关操作文档进行操作,[版本升级](upgrade.md),[更新配置文件](update_conf.md)。特别注意的是,对于 tablet 的重启,务必进行顺序化操作,不要对多个 tablet 同时进行升级或者配置。需要等一个 tablet 完成升级/配置以后,确认重启状态,再进行下一个 tablet 的操作。具体操作查看版本升级和更新配置文件文档的“重启结果确认”章节。 +- 正常重启:如果不涉及到版本升级或者更新配置文件,那么依次执行上述章节的停止集群和启动集群操作即可。 diff --git a/docs/zh/maintain/update_conf.md b/docs/zh/maintain/update_conf.md index bd40224861b..0b7e095e381 100644 --- a/docs/zh/maintain/update_conf.md +++ b/docs/zh/maintain/update_conf.md @@ -18,7 +18,12 @@ ## 更新 tablet 配置文件 +```{important} +如果有多个 tablet,请务必对每一个 tablet 进行顺序操作,不要同时对多个 tablet 进行更新配置操作。即对一个 tablet 完成配置更新,结果确认以后,再进行下一个 tablet 的更新配置操作。否则会导致集群状态异常。如果误操作导致集群异常,可以尝试使用[运维工具](openmldb_ops.md)的 `recoverdata` 进行恢复。 +``` + 更新过程对服务的影响: + * 如果创建的表是单副本,用户可以选择: - 通过`pre-upgrade`和`post-upgrade`,重启前自动添加副本,重启后自动删除新添加的副本。这样行为和多副本保持一致 - 如果允许单副本表在重启过程中不可用,可以在`pre-upgrade`的时候添加`--allow_single_replica`选项,在内存紧张的环境下,可以避免添加副本可能造成的OOM @@ -47,7 +52,7 @@ ```bash python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=post-upgrade --endpoints=127.0.0.1:10921 ``` - + ### 重启结果确认 * `showopstatus`命令查看是否有操作为kFailed, 如果有查看日志排查原因 ```bash @@ -57,7 +62,7 @@ ```bash python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=showtablestatus ``` -一个tablet节点更新完成后,对其他tablet重复上述步骤。 + 一个tablet节点更新完成后,对其他tablet重复上述步骤。 所有节点更新完成后恢复写操作,可以通过执行`showtablestatus`命令查看列 `Rows`,确认是否有新数据成功写入。 diff --git a/docs/zh/maintain/upgrade.md b/docs/zh/maintain/upgrade.md index fc24afeeb23..0fdd3dee42f 100644 --- a/docs/zh/maintain/upgrade.md +++ b/docs/zh/maintain/upgrade.md @@ -1,4 +1,4 @@ -# 版本升级 +# 升级 升级过程对服务的影响: * 如果创建的表是单副本,用户可以选择: @@ -26,10 +26,15 @@ ## 2. 升级tablet +```{important} +如果有多个 tablet,请务必对每一个 tablet 进行顺序操作,不要同时对多个 tablet 进行升级操作。即对一个 tablet 完成升级,结果确认以后,再进行下一个 tablet 的升级操作。否则会导致集群状态异常。如果误操作导致集群异常,可以尝试使用[运维工具](openmldb_ops.md)的 `recoverdata` 进行恢复。 +``` + * 升级前准备`pre-upgrade`:为了避免对线上服务的影响,需要在升级tablet前,进行`pre-upgrade`操作,把该tablet上的leader分片迁移到其它tablets上(详细命令说明可以参考:[OpenMLDB运维工具](./openmldb_ops.md)) - ```bash - python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=pre-upgrade --endpoints=127.0.0.1:10921 - ``` + + ```bash + python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=pre-upgrade --endpoints=127.0.0.1:10921 + ``` 如果允许单副本表在升级过程中不可用,可以添加`--allow_single_replica`来避免添加新的副本。 * 停止tablet ```bash @@ -49,7 +54,7 @@ ```bash python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=post-upgrade --endpoints=127.0.0.1:10921 ``` - + ### 升级结果确认 * `showopstatus`命令查看是否有操作为kFailed, 如果有查看日志排查原因 ```bash @@ -59,7 +64,7 @@ ```bash python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=showtablestatus ``` -一个tablet节点升级完成后,对其他tablet重复上述步骤。 + 一个tablet节点升级完成后,对其他tablet重复上述步骤。 所有节点升级完成后恢复写操作, 执行`showtablestatus`命令查看`Rows`是否增加。 diff --git a/docs/zh/openmldb_sql/notice.md b/docs/zh/openmldb_sql/notice.md index 9c1c660bf23..c9705ca3a1f 100644 --- a/docs/zh/openmldb_sql/notice.md +++ b/docs/zh/openmldb_sql/notice.md @@ -1,4 +1,4 @@ -# SQL 命令执行注意的点 +# SQL 命令执行注意事项 部分 SQL 命令的执行存在一定的危险性,或者有一些特别需要注意的点以避免误操作。本文对相关命令做了总结,如果你依然对其中的操作有疑问,欢迎在我们[社区渠道](https://github.com/4paradigm/OpenMLDB#11-community)进行交流,以避免相关操作给你的开发和生产环境带来损失。 From aff5846768da9768a1ed77e9fc5aa9606cbb3a01 Mon Sep 17 00:00:00 2001 From: dl239 Date: Tue, 12 Sep 2023 15:58:04 +0800 Subject: [PATCH 044/111] fix: download spark if needed (#3459) --- release/sbin/deploy-all.sh | 41 ++++++++++++++++++++++---------------- 1 file changed, 24 insertions(+), 17 deletions(-) diff --git a/release/sbin/deploy-all.sh b/release/sbin/deploy-all.sh index f665810f7e4..3a4f101b15b 100755 --- a/release/sbin/deploy-all.sh +++ b/release/sbin/deploy-all.sh @@ -121,30 +121,37 @@ do done # deploy openmldbspark -if [[ -z "${SPARK_HOME}" ]]; then - echo "[ERROR] SPARK_HOME is not set" -else - if [[ ! -e "${SPARK_HOME}" ]]; then - echo "Downloading openmldbspark..." - spark_name=spark-3.2.1-bin-openmldbspark - spark_tar="${spark_name}".tgz - if [[ -e "${spark_tar}" ]]; then - echo "Skip downloading openmldbspark as ${spark_tar} already exists" +function download_spark { + if [[ -z "${SPARK_HOME}" ]]; then + echo "[ERROR] SPARK_HOME is not set" + else + if [[ ! -e "${SPARK_HOME}" ]]; then + echo "Downloading openmldbspark..." + spark_name=spark-3.2.1-bin-openmldbspark + spark_tar="${spark_name}".tgz + if [[ -e "${spark_tar}" ]]; then + echo "Skip downloading openmldbspark as ${spark_tar} already exists" + else + url="https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb${OPENMLDB_VERSION}/${spark_tar}" + echo "Download spark from $url" + curl -SLo ${spark_tar} "$url" + fi + tar -xzf ${spark_tar} + ln -s "$(pwd)"/"${spark_name}" "${SPARK_HOME}" else - url="https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb${OPENMLDB_VERSION}/${spark_tar}" - echo "Download spark from $url" - curl -SLo ${spark_tar} "$url" + echo "${SPARK_HOME} already exists. Skip deploy spark locally" fi - tar -xzf ${spark_tar} - ln -s "$(pwd)"/"${spark_name}" "${SPARK_HOME}" - else - echo "${SPARK_HOME} already exists. Skip deploy spark locally" fi -fi +} # deploy taskmanagers +downloaded=false for line in $(parse_host conf/hosts taskmanager) do + if ! $downloaded; then + download_spark + downloaded=true + fi host=$(echo "$line" | awk -F ' ' '{print $1}') port=$(echo "$line" | awk -F ' ' '{print $2}') dir=$(echo "$line" | awk -F ' ' '{print $3}') From 94bd110118c5c42edd7b238dfc433adfe2d0776f Mon Sep 17 00:00:00 2001 From: dl239 Date: Tue, 12 Sep 2023 17:56:04 +0800 Subject: [PATCH 045/111] feat: optimize message (#3494) --- src/base/status.h | 4 +++ src/cmd/openmldb.cc | 6 ++-- src/nameserver/name_server_impl.cc | 10 +++++- src/sdk/sql_cluster_router.cc | 56 ++++++++++++++++++++++++++++-- 4 files changed, 70 insertions(+), 6 deletions(-) diff --git a/src/base/status.h b/src/base/status.h index 1e1d5cc6f4d..4a4eb867724 100644 --- a/src/base/status.h +++ b/src/base/status.h @@ -20,10 +20,14 @@ #include #include "base/slice.h" +#include "version.h" // NOLINT namespace openmldb { namespace base { +inline const std::string NOTICE_URL = "https://openmldb.ai/docs/zh/v" + std::to_string(OPENMLDB_VERSION_MAJOR) + "." + + std::to_string(OPENMLDB_VERSION_MINOR) + "/openmldb_sql/notice.html"; + enum ReturnCode { kError = -1, // TODO(zekai): Add some notes, it is hard to use these error codes diff --git a/src/cmd/openmldb.cc b/src/cmd/openmldb.cc index 6878d00a945..3cf22b2df6d 100644 --- a/src/cmd/openmldb.cc +++ b/src/cmd/openmldb.cc @@ -479,7 +479,8 @@ void HandleNSClientSetTTL(const std::vector& parts, ::openmldb::cli } bool ok = client->UpdateTTL(parts[1], type, abs_ttl, lat_ttl, index_name, err); if (ok) { - std::cout << "Set ttl ok !" << std::endl; + std::cout << "Set ttl ok ! Note that, " + "it will take effect after two garbage collection intervals (i.e. gc_interval)." << std::endl; } else { std::cout << "Set ttl failed! " << err << std::endl; } @@ -908,7 +909,8 @@ void HandleNSClientChangeLeader(const std::vector& parts, ::openmld std::cout << "Invalid args. pid should be uint32_t" << std::endl; return; } - std::cout << "change leader ok" << std::endl; + std::cout << "change leader ok. " + "If there are writing operations while changing a leader, it may cause data loss." << std::endl; } void HandleNSClientOfflineEndpoint(const std::vector& parts, ::openmldb::client::NsClient* client) { diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index 4aae3c594c3..862ee42d320 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -8235,6 +8235,13 @@ void NameServerImpl::DeleteIndex(RpcController* controller, const DeleteIndexReq PDLOG(WARNING, "table[%s] does not exist!", request->table_name().c_str()); return; } + if (table_info->storage_mode() != ::openmldb::common::kMemory) { + response->set_code(ReturnCode::kOperatorNotSupport); + std::string msg = "DROP INDEX is not supported on a disk table, as its index is fully managed by the system."; + response->set_msg(msg); + LOG(WARNING) << msg; + return; + } { std::lock_guard lock(mu_); if (table_info->column_key_size() == 0) { @@ -8435,7 +8442,8 @@ void NameServerImpl::AddIndex(RpcController* controller, const AddIndexRequest* } if (table_info->storage_mode() != ::openmldb::common::kMemory) { response->set_code(ReturnCode::kOperatorNotSupport); - response->set_msg("only memory support addindex"); + response->set_msg("CREATE INDEX is not supported on a disk table, as its index is fully managed by the system. " + "Please refer to this link for more details: " + base::NOTICE_URL); LOG(WARNING) << "cannot add index. table " << name; return; } diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 022e5664f7c..85eeaa31761 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -1358,7 +1358,10 @@ bool SQLClusterRouter::PutRow(uint32_t tid, const std::shared_ptr& bool ret = client->Put(tid, pid, cur_ts, row->GetRow(), kv.second); if (!ret) { SET_STATUS_AND_WARN(status, StatusCode::kCmdError, - "fail to make a put request to table. tid " + std::to_string(tid)); + "INSERT failed, tid " + std::to_string(tid) + + ". Note that data might have been partially inserted. " + "You are encouraged to perform DELETE to remove any partially " + "inserted data before trying INSERT again."); return false; } continue; @@ -1676,6 +1679,9 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h } case hybridse::node::kCmdDropFunction: { std::string name = cmd_node->GetArgs()[0]; + if (!CheckAnswerIfInteractive("function", name)) { + return {}; + } auto base_status = ns_ptr->DropFunction(name, cmd_node->IsIfExists()); if (base_status.OK()) { *status = {}; @@ -1688,6 +1694,7 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h if (!base_status.OK()) { LOG(WARNING) << "drop function " << name << " failed: [" << base_status.GetCode() << "] " << base_status.GetMsg(); + APPEND_FROM_BASE_AND_WARN(status, base_status, "drop function failed from taskmanager"); return {}; } } @@ -1968,6 +1975,12 @@ base::Status SQLClusterRouter::HandleSQLCreateTable(hybridse::node::CreatePlanNo if (!ns_ptr->CreateTable(table_info, create_node->GetIfNotExist(), msg)) { return base::Status(base::ReturnCode::kSQLCmdRunError, msg); } + if (interactive_ && table_info.column_key_size() == 0) { + return base::Status{base::ReturnCode::kOk, + "As there is no index specified, a default index type `absolute 0` will be created. " + "The data attached to the index will never expire to be deleted. " + "Please refer to this link for more details: " + base::NOTICE_URL}; + } } else { auto dbs = cluster_sdk_->GetAllDbs(); auto it = std::find(dbs.begin(), dbs.end(), db_name); @@ -2470,7 +2483,7 @@ std::shared_ptr SQLClusterRouter::ExecuteSQL( auto base_status = HandleSQLCreateTable(create_node, db, ns_ptr, sql); if (base_status.OK()) { RefreshCatalog(); - *status = {}; + *status = {StatusCode::kOk, base_status.msg}; } else { *status = {StatusCode::kCmdError, base_status.msg}; } @@ -2546,6 +2559,10 @@ std::shared_ptr SQLClusterRouter::ExecuteSQL( return ResultSetSQL::MakeResultSet(job_schema, {value}, status); } RefreshCatalog(); + *status = {StatusCode::kOk, + "\n- DEPLOY may modify table TTL. Data imported before DEPLOY may expire before the new TTL.\n" + "- DEPLOY will fail if the disk table requires creating an index, " + "the partial index may have been created."}; } return {}; } @@ -2901,6 +2918,30 @@ ::hybridse::sdk::Status SQLClusterRouter::ParseNamesFromArgs(const std::string& bool SQLClusterRouter::CheckAnswerIfInteractive(const std::string& drop_type, const std::string& name) { if (interactive_) { + std::string msg; + if (drop_type == "table") { + msg = "DROP TABLE is a dangerous operation. Once deleted, it is very difficult to recover. \n" + "You may also note that: \n" + "- If a snapshot of a partition is being generated while dropping a table, " + "the partition will not be deleted successfully.\n" + "- By default, the deleted data is moved to the folder `recycle`.\n" + "Please refer to this link for more details: " + base::NOTICE_URL; + } else if (drop_type == "deployment") { + msg = "- DROP DEPLOYMENT will not delete the index that is created automatically.\n" + "- DROP DEPLOYMENT will not delete data in the pre-aggregation table in the long window setting."; + } else if (drop_type == "index") { + msg = "DROP INDEX is a dangerous operation. Once deleted, it is very difficult to recover.\n" + "You may also note that: \n" + "- You have to wait for 2 garbage collection intervals (gc_interval) to create the same index.\n" + "- The index will not be deleted immediately, " + "it remains until after 2 garbage collection intervals.\n" + "Please refer to the doc for more details: " + base::NOTICE_URL; + } else if (drop_type == "function") { + msg = "This will lead to execution failure or system crash if any active deployment is using the function."; + } + if (!msg.empty()) { + printf("%s\n", msg.c_str()); + } printf("Drop %s %s? yes/no\n", drop_type.c_str(), name.c_str()); std::string input; std::cin >> input; @@ -3231,7 +3272,16 @@ hybridse::sdk::Status SQLClusterRouter::HandleDelete(const std::string& db, cons if (!status.IsOK()) { return status; } - return SendDeleteRequst(table_info, &option); + status = SendDeleteRequst(table_info, &option); + if (status.IsOK()) { + status = {StatusCode::kOk, + "DELETE is a dangerous operation. Once deleted, it is very difficult to recover. You may also note that:\n" + "- The deleted data will not be released immediately from the main memory; " + "it remains until after a garbage collection interval (gc_interval)\n" + "- Data in the pre-aggregation table will not be updated.\n" + "Please refer to this link for more details: " + base::NOTICE_URL}; + } + return status; } hybridse::sdk::Status SQLClusterRouter::SendDeleteRequst( From 0462f8a9682f8d232e8d44df7513cff66870d686 Mon Sep 17 00:00:00 2001 From: dl239 Date: Thu, 14 Sep 2023 10:13:06 +0800 Subject: [PATCH 046/111] fix: operation tools run failed if openmldb install with name (#3455) --- .github/workflows/openmldb-tool.yml | 46 +- docs/en/maintain/openmldb_ops.md | 4 +- docs/zh/maintain/openmldb_ops.md | 2 +- release/bin/start.sh | 8 +- .../openmldb-deploy/cases/case_conf.py | 2 +- .../openmldb-deploy/cases/test_scale.py | 16 +- .../openmldb-deploy/cases/test_upgrade.py | 13 +- test/test-tool/openmldb-deploy/cases/tool.py | 418 ------------------ test/test-tool/openmldb-deploy/cases/util.py | 38 ++ test/test-tool/openmldb-deploy/hosts | 15 + .../openmldb-deploy/install_with_name.sh | 75 ++++ tools/openmldb_ops.py | 202 +++++---- tools/tool.py | 113 +++-- 13 files changed, 374 insertions(+), 578 deletions(-) delete mode 100644 test/test-tool/openmldb-deploy/cases/tool.py create mode 100644 test/test-tool/openmldb-deploy/cases/util.py create mode 100644 test/test-tool/openmldb-deploy/hosts create mode 100644 test/test-tool/openmldb-deploy/install_with_name.sh diff --git a/.github/workflows/openmldb-tool.yml b/.github/workflows/openmldb-tool.yml index c8150a40539..23d3f5b1dfd 100644 --- a/.github/workflows/openmldb-tool.yml +++ b/.github/workflows/openmldb-tool.yml @@ -8,10 +8,12 @@ on: paths: - 'release/**' - 'tools/**' + - 'test/test-tool/openmldb-deploy/**' pull_request: paths: - 'release/**' - 'tools/**' + - 'test/test-tool/openmldb-deploy/**' workflow_dispatch: env: @@ -27,19 +29,53 @@ jobs: - uses: actions/checkout@v2 - name: prepare env + run: | + bash test/test-tool/openmldb-deploy/gen_conf.sh ${{ env.DEPLOY_DIR }} ${{ env.NODE_LIST }} > hosts + cp -f hosts test/test-tool/openmldb-deploy/ + pip3 install requests openmldb pytest + - name: install openmldb run: | VERSION=`git fetch --tags | git tag -l v[0-9].* | tail -n1` VERSION=${VERSION#v} - echo "OPENMLDB_VETSION=$VERSION" >> $GITHUB_ENV - bash test/test-tool/openmldb-deploy/gen_conf.sh ${{ env.DEPLOY_DIR }} ${{ env.NODE_LIST }} > hosts + bash test/test-tool/openmldb-deploy/install.sh ${VERSION} + - name: run test + run: | + cp -f tools/tool.py test/test-tool/openmldb-deploy/cases/ + cp -f tools/* openmldb/tools/ + python3 -m pytest test/test-tool/openmldb-deploy/cases --junit-xml=pytest.xml + - name: clear env + run: | + bash openmldb/sbin/stop-all.sh && bash openmldb/sbin/clear-all.sh + - name: upload python test results + if: always() + uses: actions/upload-artifact@v2 + with: + name: openmldb-tool-test-result-${{ github.sha }} + path: | + pytest.xml + + openmldb-tool-name: + runs-on: [self-hosted,generic] + if: github.repository == '4paradigm/OpenMLDB' + container: + image: ghcr.io/4paradigm/hybridsql:latest + steps: + - uses: actions/checkout@v2 + + - name: prepare env + run: | pip3 install requests openmldb pytest + yum install -y rsync - name: install openmldb - env: - OPENMLDB_VETSION: ${{ env.OPENMLDB_VETSION }} run: | - bash test/test-tool/openmldb-deploy/install.sh ${{ env.OPENMLDB_VETSION }} + git fetch --tags --force + VERSION=$(git describe --always --tags `git rev-list --tags --max-count=1`) + VERSION=${VERSION#v} + bash test/test-tool/openmldb-deploy/install_with_name.sh ${VERSION} - name: run test run: | + cp -f tools/tool.py test/test-tool/openmldb-deploy/cases/ + cp -f tools/* openmldb/tools/ python3 -m pytest test/test-tool/openmldb-deploy/cases --junit-xml=pytest.xml - name: clear env run: | diff --git a/docs/en/maintain/openmldb_ops.md b/docs/en/maintain/openmldb_ops.md index 134120a414f..46bfce18c6d 100644 --- a/docs/en/maintain/openmldb_ops.md +++ b/docs/en/maintain/openmldb_ops.md @@ -39,5 +39,5 @@ python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172 - --endpoints: specified the endpoints to migrate out. If there are two or more endoints, use `,` as delimiter. It will execute failed if the leftover tablet number less than replica number of tables ### System Requirements -- python >= 3.6 -- `showopstatus` and `showtablestatus` require `prettytable` dependency \ No newline at end of file +- python >= 2.7 +- `showopstatus` and `showtablestatus` require `prettytable` dependency diff --git a/docs/zh/maintain/openmldb_ops.md b/docs/zh/maintain/openmldb_ops.md index 31c4db3a8aa..10b53437b52 100644 --- a/docs/zh/maintain/openmldb_ops.md +++ b/docs/zh/maintain/openmldb_ops.md @@ -35,5 +35,5 @@ python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172 ``` ### 系统要求 -- 要求python3.6及以上版本 +- 要求python2.7及以上版本 - `showopstatus`和`showtablestatus`需要`prettytable`依赖 diff --git a/release/bin/start.sh b/release/bin/start.sh index 4f1c1260b29..23bcf77d4a4 100755 --- a/release/bin/start.sh +++ b/release/bin/start.sh @@ -143,7 +143,7 @@ case $OP in PID=$! echo "process pid is $PID" fi - if [ -x "$(command -v curl)" ]; then + if [ -x "$(command -v curl)" ] && ! grep -q '^--use_name=true' "conf/${COMPONENT}.flags"; then sleep 3 ENDPOINT=$(grep '^\--endpoint' ./conf/"$COMPONENT".flags | grep -v '#' | awk -F '=' '{print $2}') COUNT=1 @@ -164,10 +164,10 @@ case $OP in fi done else - echo "no curl, sleep 10s and then check the process running status" - sleep 10 + echo "no curl, sleep 12s and then check the process running status" + sleep 12 if kill -0 "$PID" > /dev/null 2>&1; then - if [ "$DAEMON_MODE" != "true" ]; then + if [ "${DAEMON_MODE}" != "true" ]; then echo $PID > "$OPENMLDB_PID_FILE" fi echo "Start ${COMPONENT} success" diff --git a/test/test-tool/openmldb-deploy/cases/case_conf.py b/test/test-tool/openmldb-deploy/cases/case_conf.py index c486bab5ed0..785db5e55f0 100644 --- a/test/test-tool/openmldb-deploy/cases/case_conf.py +++ b/test/test-tool/openmldb-deploy/cases/case_conf.py @@ -30,7 +30,7 @@ conf["base_dir"] = path.dirname(path.dirname(path.dirname(path.dirname(dirname)))) conf["components"] = {} cf = configparser.ConfigParser(strict=False, delimiters=" ", allow_no_value=True) -host_file = conf["base_dir"] + "/openmldb/conf/hosts" +host_file = conf["base_dir"] + "/test/test-tool/openmldb-deploy/hosts" cf.read(host_file) for sec in cf.sections(): if sec != "zookeeper": diff --git a/test/test-tool/openmldb-deploy/cases/test_scale.py b/test/test-tool/openmldb-deploy/cases/test_scale.py index 7ca09ca2df6..b9b71172dd4 100644 --- a/test/test-tool/openmldb-deploy/cases/test_scale.py +++ b/test/test-tool/openmldb-deploy/cases/test_scale.py @@ -21,7 +21,7 @@ from tool import Executor from tool import Partition from tool import Status -from tool import Util +from util import Util class TestScale: db = None @@ -37,8 +37,8 @@ def setup_class(cls): cls.bin_path = cls.openmldb_path + "/bin/openmldb" cls.executor = Executor(cls.bin_path, case_conf.conf["zk_cluster"], case_conf.conf["zk_root_path"]) - def execute_scale(self, scale_cmd : str, endpoint : str = ""): - cmd = ["python3"] + def execute_scale(self, python_bin, scale_cmd : str, endpoint : str = ""): + cmd = [python_bin] cmd.append(f"{self.base_dir}/tools/openmldb_ops.py") cmd.append(f"--openmldb_bin_path={self.bin_path}") cmd.append("--zk_cluster=" + case_conf.conf["zk_cluster"]) @@ -50,7 +50,8 @@ def execute_scale(self, scale_cmd : str, endpoint : str = ""): return status @pytest.mark.parametrize("replica_num, partition_num", [(2, 8), (1, 10)]) - def test_scalein(self, replica_num, partition_num): + @pytest.mark.parametrize("python_bin", ["python2", "python3"]) + def test_scalein(self, python_bin, replica_num, partition_num): assert len(case_conf.conf["components"]["tablet"]) > 2 status, distribution = Util.gen_distribution(case_conf.conf["components"]["tablet"], replica_num, partition_num) assert status.OK() @@ -74,7 +75,7 @@ def test_scalein(self, replica_num, partition_num): assert item[5] == "yes" assert len(endpoints) == len(case_conf.conf["components"]["tablet"]) - assert self.execute_scale("scalein", case_conf.conf["components"]["tablet"][0]).OK() + assert self.execute_scale(python_bin, "scalein", case_conf.conf["components"]["tablet"][0]).OK() status, result = self.executor.GetTableInfo("test", "") assert status.OK() @@ -88,7 +89,8 @@ def test_scalein(self, replica_num, partition_num): self.cursor.execute(f"drop table {table_name}") @pytest.mark.parametrize("replica_num, partition_num", [(2, 8), (1, 10)]) - def test_scaleout(self, replica_num, partition_num): + @pytest.mark.parametrize("python_bin", ["python2", "python3"]) + def test_scaleout(self, python_bin, replica_num, partition_num): assert len(case_conf.conf["components"]["tablet"]) > 2 status, distribution = Util.gen_distribution(case_conf.conf["components"]["tablet"][1:], replica_num, partition_num) assert status.OK() @@ -113,7 +115,7 @@ def test_scaleout(self, replica_num, partition_num): assert len(endpoints) == len(case_conf.conf["components"]["tablet"]) - 1 assert case_conf.conf["components"]["tablet"][0] not in endpoints - assert self.execute_scale("scaleout").OK() + assert self.execute_scale(python_bin, "scaleout").OK() status, result = self.executor.GetTableInfo("test", "") assert status.OK() diff --git a/test/test-tool/openmldb-deploy/cases/test_upgrade.py b/test/test-tool/openmldb-deploy/cases/test_upgrade.py index 950c52c8fa9..2e7177e45d6 100644 --- a/test/test-tool/openmldb-deploy/cases/test_upgrade.py +++ b/test/test-tool/openmldb-deploy/cases/test_upgrade.py @@ -21,7 +21,7 @@ from tool import Executor from tool import Partition from tool import Status -from tool import Util +from util import Util class TestUpgrade: db = None @@ -37,8 +37,8 @@ def setup_class(cls): cls.bin_path = cls.openmldb_path + "/bin/openmldb" cls.executor = Executor(cls.bin_path, case_conf.conf["zk_cluster"], case_conf.conf["zk_root_path"]) - def execute_upgrade(self, upgrade_cmd : str, endpoint : str): - cmd = ["python3"] + def execute_upgrade(self, python_bin, upgrade_cmd : str, endpoint : str): + cmd = [python_bin] cmd.append(f"{self.base_dir}/tools/openmldb_ops.py") cmd.append(f"--openmldb_bin_path={self.bin_path}") cmd.append("--zk_cluster=" + case_conf.conf["zk_cluster"]) @@ -71,7 +71,8 @@ def get_unalive_cnt(self, db, table_name) -> (Status, int): @pytest.mark.parametrize("replica_num, partition_num", [(3, 10), (2, 10), (1, 10)]) - def test_upgrade(self, replica_num, partition_num): + @pytest.mark.parametrize("python_bin", ["python2", "python3"]) + def test_upgrade(self, python_bin, replica_num, partition_num): assert len(case_conf.conf["components"]["tablet"]) > 2 status, distribution = Util.gen_distribution(case_conf.conf["components"]["tablet"], replica_num, partition_num) assert status.OK() @@ -92,7 +93,7 @@ def test_upgrade(self, replica_num, partition_num): status, unalive_cnt = self.get_unalive_cnt("test", table_name) assert status.OK() and unalive_cnt == 0 - assert self.execute_upgrade("pre-upgrade", case_conf.conf["components"]["tablet"][0]).OK() + assert self.execute_upgrade(python_bin, "pre-upgrade", case_conf.conf["components"]["tablet"][0]).OK() status, cnt1 = self.get_leader_cnt("test", table_name, case_conf.conf["components"]["tablet"][0]) assert status.OK() and cnt1 == 0 @@ -102,7 +103,7 @@ def test_upgrade(self, replica_num, partition_num): data = result.fetchall() assert len(data) == key_num - assert self.execute_upgrade("post-upgrade", case_conf.conf["components"]["tablet"][0]).OK() + assert self.execute_upgrade(python_bin, "post-upgrade", case_conf.conf["components"]["tablet"][0]).OK() status, cnt2 = self.get_leader_cnt("test", table_name, case_conf.conf["components"]["tablet"][0]) assert status.OK() and cnt2 == cnt diff --git a/test/test-tool/openmldb-deploy/cases/tool.py b/test/test-tool/openmldb-deploy/cases/tool.py deleted file mode 100644 index 1bfde47d2bd..00000000000 --- a/test/test-tool/openmldb-deploy/cases/tool.py +++ /dev/null @@ -1,418 +0,0 @@ -# Copyright 2021 4Paradigm -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -import logging -import os -import random -import subprocess -import sys -import time -from typing import List, Dict, Tuple -log = logging.getLogger(__name__) -logging.basicConfig(level=logging.INFO, format = '%(levelname)s: %(message)s') - -USE_SHELL = sys.platform.startswith("win") -class Status: - def __init__(self, code = 0, msg = "ok"): - self.code = code - self.msg = msg - - def OK(self): - return True if self.code == 0 else False - - def GetMsg(self): - return self.msg - - def GetCode(self): - return self.code - -class Partition: - def __init__(self, name, tid, pid, endpoint, is_leader, is_alive, offset): - self.name = name - self.tid = tid - self.pid = pid - self.endpoint = endpoint - self.is_leader = is_leader - self.is_alive = is_alive - self.offset = 0 if offset == "-" else int(offset) - - def GetTid(self): - return self.tid - def GetName(self): - return self.name - def GetPid(self): - return self.pid - def GetOffset(self): - return self.offset - def GetEndpoint(self): - return self.endpoint - def IsAlive(self): - return self.is_alive - def IsLeader(self): - return self.is_leader - def GetKey(self): - return "{}_{}".format(self.tid, self.pid) - -class Executor: - def __init__(self, openmldb_bin_path, zk_cluster, zk_root_path): - self.openmldb_bin_path = openmldb_bin_path - self.zk_cluster = zk_cluster - self.zk_root_path = zk_root_path - self.ns_base_cmd = [self.openmldb_bin_path, - "--zk_cluster=" + self.zk_cluster, - "--zk_root_path=" + self.zk_root_path, - "--role=ns_client", - "--interactive=false"] - self.tablet_base_cmd = [self.openmldb_bin_path, "--role=client", "--interactive=false"] - self.sql_base_cmd = [self.openmldb_bin_path, - "--zk_cluster=" + self.zk_cluster, - "--zk_root_path=" + self.zk_root_path, - "--role=sql_client", - "--interactive=false"] - - def Connect(self) -> Status: - status, endpoint = self.GetNsLeader() - if status.OK() and status.GetMsg().find("zk client init failed") == -1: - self.ns_leader = endpoint - log.info(f"ns leader: {self.ns_leader}") - self.ns_base_cmd = [self.openmldb_bin_path, - "--endpoint=" + self.ns_leader, - "--role=ns_client", - "--interactive=false"] - return Status() - return Status(-1, "connect OpenMLDB failed") - - def RunWithRetuncode(self, command, - universal_newlines = True, - useshell = USE_SHELL, - env = os.environ) -> tuple([Status, str]): - try: - print(command) - p = subprocess.Popen(command, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = useshell, universal_newlines = universal_newlines, env = env) - output = p.stdout.read() - p.wait() - errout = p.stderr.read() - p.stdout.close() - p.stderr.close() - if "error msg" in output: - return Status(-1, output), output - return Status(p.returncode, errout), output - except Exception as ex: - return Status(-1, ex), None - - def GetNsLeader(self) -> tuple([Status, str]): - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=showns") - status, output = self.RunWithRetuncode(cmd) - if status.OK(): - result = self.ParseResult(output) - for record in result: - if record[2] == "leader": - return Status(), record[0] - return Status(-1, "get ns leader failed"), None - - - def ParseResult(self, output) -> list: - result = [] - lines = output.split("\n") - content_is_started = False - for line in lines: - line = line.lstrip() - if line.startswith("------"): - content_is_started = True - continue - if not content_is_started: - continue - record = line.split() - if len(record) > 0: - result.append(record) - return result - - def GetAutofailover(self) -> tuple([Status, bool]): - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=confget auto_failover") - status, output = self.RunWithRetuncode(cmd) - if not status.OK(): - return status, None - if output.find("true") != -1: - return Status(), True - return Status(), False; - - def SetAutofailover(self, value) -> Status: - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=confset auto_failover " + value) - status, output = self.RunWithRetuncode(cmd) - return status - - def GetAllDatabase(self) -> tuple([Status, List]): - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=showdb") - status, output = self.RunWithRetuncode(cmd) - if not status.OK(): - return status, None - dbs = [] - for record in self.ParseResult(output): - if len(record) < 2: - continue - dbs.append(record[1]) - return Status(), dbs - - def GetTableInfo(self, database, table_name = '') -> tuple([Status, List]): - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=showtable " + table_name) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - if not status.OK(): - return status, None - result = [] - for record in self.ParseResult(output): - if len(record) < 4: - continue - result.append(record) - return Status(), result - - def ParseTableInfo(self, table_info) -> Dict[str, List[Partition]]: - result = {} - for record in table_info: - is_leader = True if record[4] == "leader" else False - is_alive = True if record[5] == "yes" else False - partition = Partition(record[0], record[1], record[2], record[3], is_leader, is_alive, record[6]); - result.setdefault(record[2], []) - result[record[2]].append(partition) - return result - - def GetTablePartition(self, database, table_name) -> tuple([Status, Dict]): - status, result = self.GetTableInfo(database, table_name) - if not status.OK: - return status, None - partition_dict = self.ParseTableInfo(result) - return Status(), partition_dict - - def GetAllTable(self, database) -> Tuple[Status, List[Partition]]: - status, result = self.GetTableInfo(database) - if not status.OK(): - return status, None - tables = [] - for partition in result: - if partition[0] not in tables: - tables.append(partition[0]) - return Status(), tables - - def GetTableStatus(self, endpoint, tid = '', pid = '') -> tuple([Status, Dict]): - cmd = list(self.tablet_base_cmd) - cmd.append("--endpoint=" + endpoint) - cmd.append("--cmd=gettablestatus " + tid + " " + pid) - status, output = self.RunWithRetuncode(cmd) - if not status.OK(): - log.error("gettablestatus failed") - return status, None - if "failed" in output: - log.error("gettablestatus failed") - return Status(-1, output), None - result = {} - for record in self.ParseResult(output): - if len(record) < 4: - continue - key = "{}_{}".format(record[0], record[1]) - result[key] = record - return Status(), result - - def ShowTableStatus(self, pattern = '%') -> tuple([Status, list]): - cmd = list(self.sql_base_cmd) - cmd.append(f"--cmd=show table status like '{pattern}';") - status, output = self.RunWithRetuncode(cmd) - if not status.OK(): - log.error("show table status failed") - return status, None - if "failed" in output: - log.error("show table status failed") - return Status(-1, output), None - output = self.ParseResult(output) - output_processed = [] - if len(output) >= 1: - header = output[0] - output_processed.append(header) - col_num = len(header) - for i in range(1, len(output)): - # warnings col may be empty - if len(output[i]) == col_num - 1: - output_processed.append(output[i] + [""]) - elif len(output[i]) == col_num: - output_processed.append(output[i]) - - return Status(), output_processed - - def LoadTable(self, endpoint, name, tid, pid, sync = True) -> Status: - cmd = list(self.tablet_base_cmd) - cmd.append("--endpoint=" + endpoint) - cmd.append("--cmd=loadtable {} {} {} 0 8".format(name, tid, pid)) - status, output = self.RunWithRetuncode(cmd) - if status.OK() and output.find("LoadTable ok") != -1: - if not sync: - return Status() - while True: - status, result = self.GetTableStatus(endpoint, tid, pid) - key = "{}_{}".format(tid, pid) - if status.OK() and key in result: - table_stat = result[key][4] - if table_stat == "kTableNormal": - return Status() - elif table_stat == "kTableLoading" or table_stat == "kTableUndefined": - log.info(f"table is loading... tid {tid} pid {pid}") - else: - return Status(-1, f"table stat is {table_stat}") - time.sleep(2) - - return Status(-1, "execute load table failed") - - def GetLeaderFollowerOffset(self, endpoint, tid, pid) -> tuple([Status, List]): - cmd = list(self.tablet_base_cmd) - cmd.append("--endpoint=" + endpoint) - cmd.append("--cmd=getfollower {} {}".format(tid, pid)) - status, output = self.RunWithRetuncode(cmd) - if not status.OK(): - return status - return Status(), self.ParseResult(output) - - def RecoverTablePartition(self, database, name, pid, endpoint, sync = False) -> Status: - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=recovertable {} {} {}".format(name, pid, endpoint)) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - if status.OK() and output.find("recover table ok") != -1: - if sync and not self.WaitingOP(database, name, pid).OK(): - return Status(-1, "recovertable failed") - return Status() - return status - - def UpdateTableAlive(self, database, name, pid, endpoint, is_alive) -> Status: - if is_alive not in ["yes", "no"]: - return Status(-1, f"invalid argument {is_alive}") - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=updatetablealive {} {} {} {}".format(name, pid, endpoint, is_alive)) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - if status.OK() and output.find("update ok") != -1: - return Status() - return Status(-1, "update table alive failed") - - def ChangeLeader(self, database, name, pid, endpoint = "auto", sync = False) -> Status: - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=changeleader {} {} {}".format(name, pid, endpoint)) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - if status.OK() and sync and not self.WaitingOP(database, name, pid).OK(): - return Status(-1, "changer leader failed") - return status - - def ShowOpStatus(self, database, name = '', pid = '') -> tuple([Status, List]): - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=showopstatus {} {} ".format(name, pid)) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - if not status.OK(): - return status, None - return Status(), self.ParseResult(output) - - def CancelOp(self, database, op_id) -> Status: - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=cancelop {}".format(op_id)) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - return status - - def Migrate(self, database, name, pid, src_endpoint, desc_endpoint, sync = False) -> Status: - if src_endpoint == desc_endpoint: - return Status(-1, "src_endpoint and desc_endpoint is same") - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=migrate {} {} {} {}".format(src_endpoint, name, pid, desc_endpoint)) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - if status.OK() and output.find("migrate ok") != -1: - if sync and not self.WaitingOP(database, name, pid).OK(): - return Status(-1, "migrate failed") - return Status() - return status - - def ShowTablet(self) -> tuple([Status, List]): - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=showtablet") - status, output = self.RunWithRetuncode(cmd) - if not status.OK(): - return status, None - return Status(), self.ParseResult(output) - - def AddReplica(self, database, name, pid, endpoint, sync = False) -> Status: - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=addreplica {} {} {}".format(name, pid, endpoint)) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - if status.OK() and output.find("ok") != -1: - if sync and not self.WaitingOP(database, name, pid).OK(): - return Status(-1, "addreplica failed") - return Status() - return Status(-1, "add replica failed") - - def DelReplica(self, database, name, pid, endpoint, sync = False) -> Status: - cmd = list(self.ns_base_cmd) - cmd.append("--cmd=delreplica {} {} {}".format(name, pid, endpoint)) - cmd.append("--database=" + database) - status, output = self.RunWithRetuncode(cmd) - if status.OK() and output.find("ok") != -1: - if sync and not self.WaitingOP(database, name, pid).OK(): - return Status(-1, "delreplica failed") - return Status() - return Status(-1, "del replica failed") - - def WaitingOP(self, database, name, pid) -> Status: - while True: - error_try_times = 3 - while error_try_times > 0: - status, result = self.ShowOpStatus(database, name, pid) - error_try_times -= 1 - if status.OK(): - break - elif error_try_times == 0: - return Status(-1, "fail to execute showopstatus") - record = result[-1] - if record[4] == 'kDoing' or record[4] == 'kInited': - value = " ".join(record) - log.info(f"waiting {value}") - time.sleep(2) - elif record[4] == 'kFailed': - return Status(-1, f"job {record[0]} execute failed") - else: - break - return Status() - -class Util: - def gen_distribution(tablets : list, replica_num: int = 3, partition_num : int = 8) -> (Status, str): - if replica_num < 1 or len(tablets) < replica_num: - return Status(-1, "invalid args") - distribution = "[" - for i in range(partition_num): - if i > 0: - distribution += "," - endpoints = random.sample(tablets, replica_num) - distribution += f"(\'{endpoints[0]}\'" - if (replica_num) > 1: - distribution += ", [" - for endpoint in endpoints[1:]: - distribution += f"\'{endpoint}\'," - if (replica_num) > 1: - distribution = distribution[:-1] - if (replica_num) > 1: - distribution += "]" - distribution += ")" - distribution += "]" - return Status(), distribution diff --git a/test/test-tool/openmldb-deploy/cases/util.py b/test/test-tool/openmldb-deploy/cases/util.py new file mode 100644 index 00000000000..3f763682d74 --- /dev/null +++ b/test/test-tool/openmldb-deploy/cases/util.py @@ -0,0 +1,38 @@ +# Copyright 2021 4Paradigm +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import random +from tool import Status + +class Util: + def gen_distribution(tablets : list, replica_num: int = 3, partition_num : int = 8) -> (Status, str): + if replica_num < 1 or len(tablets) < replica_num: + return Status(-1, "invalid args") + distribution = "[" + for i in range(partition_num): + if i > 0: + distribution += "," + endpoints = random.sample(tablets, replica_num) + distribution += f"(\'{endpoints[0]}\'" + if (replica_num) > 1: + distribution += ", [" + for endpoint in endpoints[1:]: + distribution += f"\'{endpoint}\'," + if (replica_num) > 1: + distribution = distribution[:-1] + if (replica_num) > 1: + distribution += "]" + distribution += ")" + distribution += "]" + return Status(), distribution diff --git a/test/test-tool/openmldb-deploy/hosts b/test/test-tool/openmldb-deploy/hosts new file mode 100644 index 00000000000..047238bfe03 --- /dev/null +++ b/test/test-tool/openmldb-deploy/hosts @@ -0,0 +1,15 @@ +# format: host:port:zk_peer_port:zk_election_port WORKDIR +# only host is required, other fields are optional. +# zk_peer_port and zk_election_port only works for zookeeper + +[tablet] +localhost:10921 /tmp/openmldb/tablet-0 +localhost:10922 /tmp/openmldb/tablet-1 +localhost:10923 /tmp/openmldb/tablet-2 + +[nameserver] +localhost:7527 /tmp/openmldb/ns-0 +localhost:7528 /tmp/openmldb/ns-1 + +[zookeeper] +localhost:2181:2888:3888 /tmp/openmldb/zookeeper diff --git a/test/test-tool/openmldb-deploy/install_with_name.sh b/test/test-tool/openmldb-deploy/install_with_name.sh new file mode 100644 index 00000000000..6ce1851f103 --- /dev/null +++ b/test/test-tool/openmldb-deploy/install_with_name.sh @@ -0,0 +1,75 @@ +#! /usr/bin/env bash +# shellcheck disable=SC1091 + +# Copyright 2021 4Paradigm +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +set -eE -x +VERSION=$1 +if [[ -z ${VERSION} ]]; then + VERSION=0.7.2 +fi +echo "version: ${VERSION}" +curl -SLo openmldb.tar.gz "https://github.com/4paradigm/OpenMLDB/releases/download/v${VERSION}/openmldb-${VERSION}-linux.tar.gz" +mkdir -p "openmldb" +tar xzf openmldb.tar.gz -C "openmldb" --strip-components 1 +pushd "openmldb" +rm -rf sbin conf +rm -f bin/*.sh +/bin/cp -r ../release/sbin ../release/conf ./ +/bin/cp -f ../release/bin/*.sh bin/ + +/bin/cp -f ../test/test-tool/openmldb-deploy/hosts conf/hosts +sed -i"" -e "s/OPENMLDB_VERSION=[0-9]\.[0-9]\.[0-9]/OPENMLDB_VERSION=${VERSION}/g" conf/openmldb-env.sh +sed -i"" -e "s/OPENMLDB_MODE:=standalone/OPENMLDB_MODE:=cluster/g" conf/openmldb-env.sh +sh sbin/deploy-all.sh + +for (( i=0; i<=2; i++ )) +do + mkdir -p /tmp/openmldb/tablet-${i}/data && echo "tablet-${i}" > /tmp/openmldb/tablet-${i}/data/name.txt + conf_file="/tmp/openmldb/tablet-${i}/conf/tablet.flags" + sed -i "s/^--endpoint/# --endpoint/g" ${conf_file} + port=$((i + 10921)) + echo "--port=${port}" >> ${conf_file} + echo "--use_name=true" >> ${conf_file} +done +for (( i=0; i<=1; i++ )) +do + conf_file="/tmp/openmldb/ns-${i}/conf/nameserver.flags" + mkdir -p /tmp/openmldb/ns-${i}/data && echo "ns-${i}" > /tmp/openmldb/ns-${i}/data/name.txt + sed -i "s/^--endpoint/# --endpoint/g" ${conf_file} + port=$((i + 7527)) + echo "--port=${port}" >> ${conf_file} + echo "--use_name=true" >> ${conf_file} +done + +sh sbin/start-all.sh +popd + +pushd test/test-tool/openmldb-deploy +echo "collect_ignore_glob = [\"test_install.py\"]" > cases/conftest.py +cat > hosts <= max_offset: leader_pos = pos if leader_pos < 0: - log.error(f"cannot find leader partition. db {db} name {table_name} partition {pid}") + log.error("cannot find leader partition. db {db} name {table_name} partition {pid}".format( + db=db, table_name=table_name, pid=pid)) return Status(-1, "recover partition failed") tid = partitions[0].GetTid() leader_endpoint = partitions[leader_pos].GetEndpoint() # recover leader - if f"{tid}_{pid}" not in endpoint_status[leader_endpoint]: - log.info(f"leader partition is not in tablet, db {db} name {table_name} pid {pid} endpoint {leader_endpoint}. start loading data...") + if "{tid}_{pid}".format(tid=tid, pid=pid) not in endpoint_status[leader_endpoint]: + log.info("leader partition is not in tablet, db {db} name {table_name} pid {pid} endpoint {leader_endpoint}. start loading data...".format( + db=db, table_name=table_name, pid=pid, leader_endpoint=leader_endpoint)) status = executor.LoadTable(leader_endpoint, table_name, tid, pid) if not status.OK(): - log.error(f"load table failed. db {db} name {table_name} tid {tid} pid {pid} endpoint {leader_endpoint} msg {status.GetMsg()}") + log.error("load table failed. db {db} name {table_name} tid {tid} pid {pid} endpoint {leader_endpoint} msg {status.GetMsg()}".format( + db=db, table_name=table_name, tid=tid, pid=pid, leader_endpoint=leader_endpoint, status=status)) return Status(-1, "recover partition failed") if not partitions[leader_pos].IsAlive(): status = executor.UpdateTableAlive(db, table_name, pid, leader_endpoint, "yes") if not status.OK(): - log.error(f"update leader alive failed. db {db} name {table_name} pid {pid} endpoint {leader_endpoint}") + log.error("update leader alive failed. db {db} name {table_name} pid {pid} endpoint {leader_endpoint}".format( + db=db, table_name=table_name, pid=pid, leader_endpoint=leader_endpoint)) return Status(-1, "recover partition failed") # recover follower for pos in range(len(partitions)): @@ -131,21 +136,23 @@ def RecoverPartition(executor : Executor, db, partitions : list, endpoint_status if partition.IsAlive(): status = executor.UpdateTableAlive(db, table_name, pid, endpoint, "no") if not status.OK(): - log.error(f"update alive failed. db {db} name {table_name} pid {pid} endpoint {endpoint}") + log.error("update alive failed. db {db} name {table_name} pid {pid} endpoint {endpoint}".format( + db=db, table_name=table_name, pid=pid, endpoint=endpoint)) return Status(-1, "recover partition failed") if not executor.RecoverTablePartition(db, table_name, pid, endpoint).OK(): - log.error(f"recover table partition failed. db {db} name {table_name} pid {pid} endpoint {endpoint}") + log.error("recover table partition failed. db {db} name {table_name} pid {pid} endpoint {endpoint}".format( + db=db, table_name=table_name, pid=pid, endpoint=endpoint)) return Status(-1, "recover table partition failed") -def RecoverTable(executor : Executor, db, table_name) -> Status: +def RecoverTable(executor, db, table_name): if CheckTable(executor, db, table_name).OK(): - log.info(f"{table_name} in {db} is healthy") + log.info("{table_name} in {db} is healthy".format(table_name=table_name, db=db)) return Status() - log.info(f"recover {table_name} in {db}") + log.info("recover {table_name} in {db}".format(table_name=table_name, db=db)) status, table_info = executor.GetTableInfo(db, table_name) if not status.OK(): - log.warning(f"get table info failed. msg is {status.GetMsg()}") - return Status(-1, f"get table info failed. msg is {status.GetMsg()}") + log.warning("get table info failed. msg is {msg}".format(msg=status.GetMsg())) + return Status(-1, "get table info failed. msg is {msg}".format(msg=status.GetMsg())) partition_dict = executor.ParseTableInfo(table_info) endpoints = set() for record in table_info: @@ -154,13 +161,14 @@ def RecoverTable(executor : Executor, db, table_name) -> Status: for endpoint in endpoints: status, result = executor.GetTableStatus(endpoint) if not status.OK(): - log.warning(f"get table status failed. msg is {status.GetMsg()}") - return Status(-1, f"get table status failed. msg is {status.GetMsg()}") + log.warning("get table status failed. msg is {msg}".format(msg=status.GetMsg())) + return Status(-1, "get table status failed. msg is {msg}".format(msg=status.GetMsg())) endpoint_status[endpoint] = result max_pid = int(table_info[-1][2]) for pid in range(max_pid + 1): RecoverPartition(executor, db, partition_dict[str(pid)], endpoint_status) # wait op + time.sleep(1) while True: status, result = executor.ShowOpStatus(db, table_name) is_finish = True @@ -172,18 +180,18 @@ def RecoverTable(executor : Executor, db, table_name) -> Status: is_finish = False break if not is_finish: - log.info(f"waiting task") + log.info("waiting task") time.sleep(2) else: break status = CheckTable(executor, db, table_name) if status.OK(): - log.info(f"{table_name} in {db} recover success") + log.info("{table_name} in {db} recover success".format(table_name=table_name, db=db)) else: log.warning(status.GetMsg()) return status -def RecoverData(executor : Executor): +def RecoverData(executor): status, dbs = executor.GetAllDatabase() if not status.OK(): log.error("get database failed") @@ -193,36 +201,40 @@ def RecoverData(executor : Executor): for db in alldb: status, tables = executor.GetAllTable(db) if not status.OK(): - log.error(f"get all table failed") + log.error("get all table failed") return for name in tables: if not RecoverTable(executor, db, name).OK(): return -def ChangeLeader(db: str, partition: Partition, src_endpoint: str, desc_endpoint: str, one_replica: bool, - restore: bool = True) -> Status: +def ChangeLeader(db, partition, src_endpoint, desc_endpoint, one_replica, restore = True): log.info( - f"change leader of table partition {db} {partition.GetName()} {partition.GetPid()} in '{src_endpoint}' to '{desc_endpoint}' {one_replica}") + "change leader of table partition {db} {name} {pid} in '{src_endpoint}' to '{desc_endpoint}' {one_replica}".format( + db=db, name=partition.GetName(), pid=partition.GetPid(),src_endpoint=src_endpoint, desc_endpoint=desc_endpoint, one_replica=one_replica)) if one_replica and not executor.AddReplica(db, partition.GetName(), partition.GetPid(), desc_endpoint, True).OK(): - return Status(-1, f"add replica failed. {db} {partition.GetName()} {partition.GetPid()} {desc_endpoint}") + return Status(-1, "add replica failed. {db} {name} {pid} {desc_endpoint}".format( + db=db, name=partition.GetName(), pid=partition.GetPid(), desc_endpoint=desc_endpoint)) target_endpoint = "auto" if len(desc_endpoint) > 0: target_endpoint = desc_endpoint status = executor.ChangeLeader(db, partition.GetName(), partition.GetPid(), target_endpoint, True) if not status.OK(): log.error(status.msg) - return Status(-1, f"change leader failed. {db} {partition.GetName()} {partition.GetPid()}") + return Status(-1, "change leader failed. {db} {name} {pid}".format( + db=db, name=partition.GetName(), pid=partition.GetPid())) status = executor.RecoverTablePartition(db, partition.GetName(), partition.GetPid(), src_endpoint, True) if not status.OK(): log.error(status.GetMsg()) - return Status(-1, f"recover table failed. {db} {partition.GetName()} {partition.GetPid()} {src_endpoint}") + return Status(-1, "recover table failed. {db} {name} {pid} {src_endpoint}".format( + db=db, name=partition.GetName(), pid=partition.GetPid(), src_endpoint=src_endpoint)) if restore and one_replica: if not executor.DelReplica(db, partition.GetName(), partition.GetPid(), src_endpoint, True).OK(): - return Status(-1, f"del replica failed. {db} {partition.GetName()} {partition.GetPid()} {src_endpoint}") + return Status(-1, "del replica failed. {db} {name} {pid} {src_endpoint}".format( + db=db, name=partition.GetName(), pid=partition.GetPid(), src_endpoint=src_endpoint)) return Status() -def MigratePartition(db : str, partition : Partition, src_endpoint : str, desc_endpoint : str, one_replica : bool) -> Status: +def MigratePartition(db, partition, src_endpoint, desc_endpoint, one_replica): if partition.IsLeader(): des = "" if not one_replica else desc_endpoint status = ChangeLeader(db, partition, src_endpoint, des, one_replica, True) @@ -234,24 +246,25 @@ def MigratePartition(db : str, partition : Partition, src_endpoint : str, desc_e status = executor.Migrate(db, partition.GetName(), partition.GetPid(), src_endpoint, desc_endpoint, True) if not status.OK(): log.error(status.GetMsg()) - return Status(-1, f"migrate partition failed! table {partition.GetName()} partition {partition.GetPid()} {src_endpoint} {desc_endpoint}") + return Status(-1, "migrate partition failed! table {name} partition {pid} {src_endpoint} {desc_endpoint}".format( + name=partition.GetName(), pid=partition.GetPid(), src_endpoint=src_endpoint, desc_endpoint=desc_endpoint)) return Status() -def BalanceInDatabase(executor : Executor, endpoints : list, db : str) -> Status: - log.info(f"start to balance {db}") +def BalanceInDatabase(executor, endpoints, db): + log.info("start to balance {db}".format(db=db)) status, result = executor.GetTableInfo(db) if not status.OK(): - log.error(f"get table failed from {db}") - return Status(-1, f"get table failed from {db}") - all_dict : dict[str, list[Partition]] = {} + log.error("get table failed from {db}".format(db=db)) + return Status(-1, "get table failed from {db}".format(db=db)) + all_dict = {} total_partitions = 0 - endpoint_partition_map : dict[str, set] = {} + endpoint_partition_map = {} replica_map = {} for record in result: total_partitions += 1 is_leader = True if record[4] == "leader" else False is_alive = True if record[5] == "yes" else False - partition : Partition = Partition(record[0], record[1], record[2], record[3], is_leader, is_alive, record[6]) + partition = Partition(record[0], record[1], record[2], record[3], is_leader, is_alive, record[6]) all_dict.setdefault(partition.GetEndpoint(), []); all_dict[partition.GetEndpoint()].append(partition) endpoint_partition_map.setdefault(partition.GetEndpoint(), set()) @@ -270,21 +283,25 @@ def BalanceInDatabase(executor : Executor, endpoints : list, db : str) -> Status for endpoint in endpoints: if len(all_dict[endpoint]) > len(all_dict[migrate_out_endpoint]) : migrate_out_endpoint = endpoint if len(all_dict[endpoint]) < len(all_dict[migrate_in_endpoint]) : migrate_in_endpoint = endpoint - log.info(f"max partition endpoint: {migrate_out_endpoint} num: {len(all_dict[migrate_out_endpoint])}, " - f"min partition endpoint: {migrate_in_endpoint} num: {len(all_dict[migrate_in_endpoint])}") + log.info("max partition endpoint: {migrate_out_endpoint} num: {num}, ".format( + migrate_out_endpoint=migrate_out_endpoint, num=len(all_dict[migrate_out_endpoint])) + + "min partition endpoint: {migrate_in_endpoint} num: {num}".format( + migrate_in_endpoint=migrate_in_endpoint, num=len(all_dict[migrate_in_endpoint]))) if not len(all_dict[migrate_out_endpoint]) > len(all_dict[migrate_in_endpoint]) + 1 : break candidate_partition = list(all_dict[migrate_out_endpoint]) while len(candidate_partition) > 0: idx = random.randint(0, len(candidate_partition) - 1) - partition : Partition = candidate_partition.pop(idx) + partition = candidate_partition.pop(idx) if partition.GetKey() in endpoint_partition_map[migrate_in_endpoint]: continue - log.info(f"migrate table {partition.GetName()} partition {partition.GetPid()} in {db} from {partition.GetEndpoint()} to {migrate_in_endpoint}") + log.info("migrate table {name} partition {pid} in {db} from {endpoint} to {migrate_in_endpoint}".format( + name=partition.GetName(), pid=partition.GetPid(), db=db, endpoint=partition.GetEndpoint(),migrate_in_endpoint=migrate_in_endpoint)) status = MigratePartition(db, partition, migrate_out_endpoint, migrate_in_endpoint, replica_map[partition.GetKey()] == 1) if not status.OK(): log.error(status.GetMsg()) return status - log.info(f"migrate table {partition.GetName()} partition {partition.GetPid()} in {db} from {partition.GetEndpoint()} to {migrate_in_endpoint} success") + log.info("migrate table {name} partition {pid} in {db} from {endpoint} to {migrate_in_endpoint} success".format( + name=partition.GetName(), pid=partition.GetPid(), endpoint=partition.GetEndpoint(), db=db, migrate_in_endpoint=migrate_in_endpoint)) all_dict[migrate_in_endpoint].append(partition) endpoint_partition_map[migrate_in_endpoint].add(partition.GetKey()) for pos in range(len(all_dict[migrate_out_endpoint])): @@ -295,10 +312,10 @@ def BalanceInDatabase(executor : Executor, endpoints : list, db : str) -> Status break return Status() -def ScaleOut(executor : Executor): +def ScaleOut(executor): status, result = executor.ShowTablet() if not status.OK(): - log.error(f"execute showtablet failed") + log.error("execute showtablet failed") return endpoints = [] for record in result: @@ -312,20 +329,20 @@ def ScaleOut(executor : Executor): return log.info("execute scale-out success") -def ScaleInEndpoint(executor : Executor, endpoint : str, desc_endpoints : list) -> Status: - log.info(f"start to scale-in {endpoint}") +def ScaleInEndpoint(executor, endpoint, desc_endpoints): + log.info("start to scale-in {endpoint}".format(endpoint=endpoint)) status, status_result = executor.GetTableStatus(endpoint) if not status.OK(): - log.error(f"get table status failed from {endpoint}") - return Status(-1, f"get table status failed from {endpoint}") + log.error("get table status failed from {endpoint}".format(endpoint=endpoint)) + return Status(-1, "get table status failed from {endpoint}".format(endpoint=endpoint)) status, user_dbs = executor.GetAllDatabase() if not status.OK(): log.error("get data base failed") return Status(-1, "get data base failed") dbs = list(INTERNAL_DB) dbs.extend(user_dbs) - all_dict : dict[str, list[Partition]] = {} - endpoint_partition_map : dict[str, set] = {} + all_dict = {} + endpoint_partition_map = {} db_map = {} replica_map = {} for db in dbs: @@ -336,7 +353,7 @@ def ScaleInEndpoint(executor : Executor, endpoint : str, desc_endpoints : list) for record in result: is_leader = True if record[4] == "leader" else False is_alive = True if record[5] == "yes" else False - partition : Partition = Partition(record[0], record[1], record[2], record[3], is_leader, is_alive, record[6]) + partition = Partition(record[0], record[1], record[2], record[3], is_leader, is_alive, record[6]) all_dict.setdefault(partition.GetEndpoint(), []) all_dict[partition.GetEndpoint()].append(partition) endpoint_partition_map.setdefault(partition.GetEndpoint(), set()) @@ -347,12 +364,13 @@ def ScaleInEndpoint(executor : Executor, endpoint : str, desc_endpoints : list) for key, value in replica_map.items(): if value > len(desc_endpoints): db, name = db_map[key] - log.error(f"replica num of table {name} in {db} is {value}, left endpoints num is {len(desc_endpoints)}, cannot execute scale-in") + log.error("replica num of table {name} in {db} is {value}, left endpoints num is {len}, cannot execute scale-in".format( + name=name, db=db, value=value, len=len(desc_endpoints))) return Status(-1, "cannot execute scale-in") for key, record in status_result.items(): is_leader = True if record[3] == "kTableLeader" else False db, name = db_map.get("{}_{}".format(record[0], record[1])) - partition : Partition = Partition(name, record[0], record[1], endpoint, is_leader, True, record[2]) + partition = Partition(name, record[0], record[1], endpoint, is_leader, True, record[2]) desc_endpoint = "" min_partition_num = sys.maxsize for cur_endpoint in all_dict: @@ -362,29 +380,33 @@ def ScaleInEndpoint(executor : Executor, endpoint : str, desc_endpoints : list) min_partition_num = len(all_dict[cur_endpoint]) desc_endpoint = cur_endpoint if desc_endpoint == "": - log.error(f"can not find endpoint to migrate. {db} {name} {record[1]} in {endpoint}") + log.error("can not find endpoint to migrate. {db} {name} {pid} in {endpoint}".format( + db=db, name=name, pid=record[1], endpoint=endpoint)) continue - log.info(f"migrate table {partition.GetName()} partition {partition.GetPid()} in {db} from {endpoint} to {desc_endpoint}") + log.info("migrate table {name} partition {pid} in {db} from {endpoint} to {desc_endpoint}".format( + name=partition.GetName(), pid=partition.GetPid(), db=db, endpoint=endpoint, desc_endpoint=desc_endpoint)) status = MigratePartition(db, partition, endpoint, desc_endpoint, replica_map[partition.GetKey()] == 1) if not status.OK(): log.error(status.GetMsg()) - log.error(f"migrate table {partition.GetName()} partition {partition.GetPid()} in {db} from {endpoint} to {desc_endpoint} failed") + log.error("migrate table {name} partition {pid} in {db} from {endpoint} to {desc_endpoint} failed".format( + name=partition.GetName(), pid=partition.GetPid(), db=db, endpoint=endpoint, desc_endpoint=desc_endpoint)) return status - log.info(f"migrate table {partition.GetName()} partition {partition.GetPid()} in {db} from {endpoint} to {desc_endpoint} success") + log.info("migrate table {name} partition {pid} in {db} from {endpoint} to {desc_endpoint} success".format( + name=partition.GetName(), pid=partition.GetPid(), db=db, endpoint=endpoint, desc_endpoint=desc_endpoint)) return Status() -def ScaleIn(executor : Executor, endpoints : list): +def ScaleIn(executor, endpoints): status, result = executor.ShowTablet() if not status.OK(): - log.error(f"execute showtablet failed") + log.error("execute showtablet failed") return alive_endpoints = [] for record in result: if record[2] == "kHealthy" : alive_endpoints.append(record[0]) for endpoint in endpoints: if endpoint not in alive_endpoints: - log.error(f"{endpoint} is not alive, cannot execute scale-in") + log.error("{endpoint} is not alive, cannot execute scale-in".format(endpoint=endpoint)) return alive_endpoints.remove(endpoint) for endpoint in endpoints: @@ -392,7 +414,7 @@ def ScaleIn(executor : Executor, endpoints : list): return log.info("execute scale-in success") -def GetOpStatus(executor : Executor, db : str = None, filter : str = None, wait_done : bool = False) -> tuple([Status, list]): +def GetOpStatus(executor, db = None, filter = None, wait_done = False): all_results = [] if not db: status, user_dbs = executor.GetAllDatabase() @@ -422,29 +444,29 @@ def GetOpStatus(executor : Executor, db : str = None, filter : str = None, wait_ all_results.extend([[db] + record for record in result if (not filter) or (record[4] == filter)]) break - log.info(f"waiting {wait_op}") + log.info("waiting {wait_op}".format(wait_op=wait_op)) time.sleep(2) return Status(), all_results -def ShowTableStatus(executor : Executor, pattern : str = '%') -> tuple([Status, list]): +def ShowTableStatus(executor, pattern = '%'): status, result = executor.ShowTableStatus(pattern) return status, result -def PreUpgrade(executor : Executor, endpoint : str, statfile : str, allow_single_replica : bool) -> Status: +def PreUpgrade(executor, endpoint, statfile, allow_single_replica): leaders = [] # get all leader partitions - log.info(f"start to pre-upgrade {endpoint}") + log.info("start to pre-upgrade {endpoint}".format(endpoint=endpoint)) status, status_result = executor.GetTableStatus(endpoint) if not status.OK(): - log.error(f"get table status failed from {endpoint}") - return Status(-1, f"get table status failed from {endpoint}") + log.error("get table status failed from {endpoint}".format(endpoint=endpoint)) + return Status(-1, "get table status failed from {endpoint}".format(endpoint=endpoint)) status, user_dbs = executor.GetAllDatabase() if not status.OK(): log.error("get database failed") return Status(-1, "get database failed") dbs = list(INTERNAL_DB) dbs.extend(user_dbs) - all_dict : dict[str, list[Partition]] = {} + all_dict = {} db_map = {} replica_map = {} for db in dbs: @@ -455,7 +477,7 @@ def PreUpgrade(executor : Executor, endpoint : str, statfile : str, allow_single for record in result: is_leader = True if record[4] == "leader" else False is_alive = True if record[5] == "yes" else False - partition : Partition = Partition(record[0], record[1], record[2], record[3], is_leader, is_alive, int(record[6])) + partition = Partition(record[0], record[1], record[2], record[3], is_leader, is_alive, int(record[6])) all_dict.setdefault(partition.GetEndpoint(), []) all_dict[partition.GetEndpoint()].append(partition) db_map.setdefault(partition.GetKey(), (db, partition.GetName())) @@ -465,7 +487,7 @@ def PreUpgrade(executor : Executor, endpoint : str, statfile : str, allow_single for key, record in status_result.items(): if record[3] == "kTableLeader": db, name = db_map.get("{}_{}".format(record[0], record[1])) - partition : Partition = Partition(name, record[0], record[1], endpoint, is_leader, True, int(record[2])) + partition = Partition(name, record[0], record[1], endpoint, is_leader, True, int(record[2])) one_replica = replica_map[partition.GetKey()] == 1 # if one_replica, add a new replica @@ -482,7 +504,8 @@ def PreUpgrade(executor : Executor, endpoint : str, statfile : str, allow_single min_partition_num = len(all_dict[cur_endpoint]) desc_endpoint = cur_endpoint if desc_endpoint == "": - log.error(f"can not find endpoint to add replica to. {db} {name} {record[1]} in {endpoint}") + log.error("can not find endpoint to add replica to. {db} {name} {pid} in {endpoint}".format( + db=db, name=name, pid=record[1], endpoint=endpoint)) continue # change leader @@ -501,13 +524,13 @@ def PreUpgrade(executor : Executor, endpoint : str, statfile : str, allow_single else: return status -def PostUpgrade(executor : Executor, endpoint : str, statfile: str) -> Status: +def PostUpgrade(executor, endpoint, statfile): leaders = [] # check all the op status to ensure all are in stable states (i.e., kDone/kFailed) - log.info(f"check all ops are complete") + log.info("check all ops are complete") GetOpStatus(executor, None, None, True) - log.info(f"start to post-upgrade {endpoint}") + log.info("start to post-upgrade {endpoint}".format(endpoint=endpoint)) # get all leader partitions from statfile with open(statfile, "r") as reader: for line in reader.readlines(): @@ -526,20 +549,20 @@ def PostUpgrade(executor : Executor, endpoint : str, statfile: str) -> Status: key = "{}_{}".format(tid, pid) status, status_result = executor.GetTableStatus(endpoint) if not status.OK(): - log.error(f"get table status failed from {endpoint}: {status.GetMsg()}") - return Status(-1, f"get table status failed from {endpoint}: {status.GetMsg()}") + log.error("get table status failed from {endpoint}: {msg}".format(endpoint=endpoint, msg=status.GetMsg())) + return Status(-1, "get table status failed from {endpoint}: {msg}".format(endpoint=endpoint, msg=status.GetMsg())) table_status = status_result.get(key) if table_status is None: - log.error(f"get empty table status for partition {key} from {endpoint}") - return Status(-1, f"get empty table status for partition {key} from {endpoint}") + log.error("get empty table status for partition {key} from {endpoint}".format(key=key, endpoint=endpoint)) + return Status(-1, "get empty table status for partition {key} from {endpoint}".format(key=key, endpoint=endpoint)) is_leader = table_status[3] == 'kTableLeader' is_alive = table_status[4] != "kTableUndefined" if is_leader: - log.warning(f"{db} {name} {pid} in {endpoint} is already leader") + log.warning("{db} {name} {pid} in {endpoint} is already leader".format(db=db, name=name, pid=pid, endpoint=endpoint)) continue - partition : Partition = Partition(name, tid, pid, endpoint, is_leader, is_alive, int(table_status[2])) + partition = Partition(name, tid, pid, endpoint, is_leader, is_alive, int(table_status[2])) # desc_endpoint is not empty, meaning we added an extra replica for this partition in pre-upgrade one_replica = True if curr_leader == "": @@ -547,7 +570,7 @@ def PostUpgrade(executor : Executor, endpoint : str, statfile: str) -> Status: one_replica = False status, partitions = executor.GetTablePartition(db, name) if not status.OK(): - msg = f"get table partition {db} {name} failed" + msg = "get table partition {db} {name} failed".format(db=db, name=name) log.error(msg) return Status(-1, msg) for p in partitions.get(pid): @@ -556,7 +579,7 @@ def PostUpgrade(executor : Executor, endpoint : str, statfile: str) -> Status: break if curr_leader == "": - msg = f"cannot find leader endpoint for {partition.GetName()} {partition.GetPid()}" + msg = "cannot find leader endpoint for {name} {pid}".format(name=partition.GetName(), pid=partition.GetPid()) log.warning(msg) return Status(-1, msg) @@ -568,12 +591,13 @@ def PostUpgrade(executor : Executor, endpoint : str, statfile: str) -> Status: if one_replica: # if one_replica, del the extra replica which is the current leader if not executor.DelReplica(db, partition.GetName(), partition.GetPid(), curr_leader, True).OK(): - return Status(-1, f"del replica failed. {db} {partition.GetName()} {partition.GetPid()} {curr_leader}") + return Status(-1, "del replica failed. {db} {name} {pid} {curr_leader}".format( + db=db, name=partition.GetName(), pid=partition.GetPid(), curr_leader=curr_leader)) os.remove(statfile) return Status() -def PrettyPrint(data : list, header : list = None): +def PrettyPrint(data, header = None): from prettytable import PrettyTable t = PrettyTable(header) for record in data: @@ -585,8 +609,8 @@ def PrettyPrint(data : list, header : list = None): manage_ops = set(["recoverdata", "scalein", "scaleout", "pre-upgrade", "post-upgrade"]) query_ops = set(["showopstatus", "showtablestatus"]) if options.cmd not in manage_ops and options.cmd not in query_ops: - print(f"unsupported cmd: {options.cmd}") - print(f"available cmds: {list(manage_ops) + list(query_ops)}") + print("unsupported cmd: {cmd}".format(cmd=options.cmd)) + print("available cmds: {msg}".format(msg=list(manage_ops) + list(query_ops))) sys.exit() executor = Executor(options.openmldb_bin_path, options.zk_cluster, options.zk_root_path) @@ -645,7 +669,7 @@ def PrettyPrint(data : list, header : list = None): else: print(status.msg) else: - print(f"cmd {options.cmd} is not handled") + print("cmd {cmd} is not handled".format(cmd=options.cmd)) if options.cmd in manage_ops: if auto_failover and not executor.SetAutofailover("true").OK(): diff --git a/tools/tool.py b/tools/tool.py index 358751b4db9..e64b172b49b 100644 --- a/tools/tool.py +++ b/tools/tool.py @@ -16,7 +16,6 @@ import subprocess import sys import time -from typing import List, Dict, Tuple log = logging.getLogger(__name__) logging.basicConfig(level=logging.INFO, format = '%(levelname)s: %(message)s') @@ -78,23 +77,46 @@ def __init__(self, openmldb_bin_path, zk_cluster, zk_root_path): "--zk_root_path=" + self.zk_root_path, "--role=sql_client", "--interactive=false"] + self.endpoint_map = {} - def Connect(self) -> Status: - status, endpoint = self.GetNsLeader() - if status.OK() and status.GetMsg().find("zk client init failed") == -1: - self.ns_leader = endpoint - log.info(f"ns leader: {self.ns_leader}") - self.ns_base_cmd = [self.openmldb_bin_path, - "--endpoint=" + self.ns_leader, - "--role=ns_client", - "--interactive=false"] - return Status() - return Status(-1, "connect OpenMLDB failed") + def Connect(self): + cmd = list(self.ns_base_cmd) + cmd.append("--cmd=showns") + status, output = self.RunWithRetuncode(cmd) + if not status.OK() or status.GetMsg().find("zk client init failed") != -1: + return Status(-1, "get ns failed"), None + result = self.ParseResult(output) + for record in result: + if record[2] == "leader": + self.ns_leader = record[0] + if record[1] != '-': + self.endpoint_map[record[0]] = record[1] + else: + self.endpoint_map[record[0]] = record[0] + cmd = list(self.ns_base_cmd) + cmd.append("--cmd=showtablet") + status, output = self.RunWithRetuncode(cmd) + if not status.OK(): + return Status(-1, "get tablet failed"), None + result = self.ParseResult(output) + for record in result: + if record[1] != '-': + self.endpoint_map[record[0]] = record[1] + else: + self.endpoint_map[record[0]] = record[0] + + + log.info("ns leader: {ns_leader}".format(ns_leader = self.ns_leader)) + self.ns_base_cmd = [self.openmldb_bin_path, + "--endpoint=" + self.endpoint_map[self.ns_leader], + "--role=ns_client", + "--interactive=false"] + return Status() def RunWithRetuncode(self, command, universal_newlines = True, useshell = USE_SHELL, - env = os.environ) -> tuple([Status, str]): + env = os.environ): try: p = subprocess.Popen(command, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = useshell, universal_newlines = universal_newlines, env = env) output = p.stdout.read() @@ -108,7 +130,7 @@ def RunWithRetuncode(self, command, except Exception as ex: return Status(-1, ex), None - def GetNsLeader(self) -> tuple([Status, str]): + def GetNsLeader(self): cmd = list(self.ns_base_cmd) cmd.append("--cmd=showns") status, output = self.RunWithRetuncode(cmd) @@ -120,7 +142,7 @@ def GetNsLeader(self) -> tuple([Status, str]): return Status(-1, "get ns leader failed"), None - def ParseResult(self, output) -> list: + def ParseResult(self, output): result = [] lines = output.split("\n") content_is_started = False @@ -136,7 +158,7 @@ def ParseResult(self, output) -> list: result.append(record) return result - def GetAutofailover(self) -> tuple([Status, bool]): + def GetAutofailover(self): cmd = list(self.ns_base_cmd) cmd.append("--cmd=confget auto_failover") status, output = self.RunWithRetuncode(cmd) @@ -146,13 +168,13 @@ def GetAutofailover(self) -> tuple([Status, bool]): return Status(), True return Status(), False; - def SetAutofailover(self, value) -> Status: + def SetAutofailover(self, value): cmd = list(self.ns_base_cmd) cmd.append("--cmd=confset auto_failover " + value) status, output = self.RunWithRetuncode(cmd) return status - def GetAllDatabase(self) -> tuple([Status, List]): + def GetAllDatabase(self): cmd = list(self.ns_base_cmd) cmd.append("--cmd=showdb") status, output = self.RunWithRetuncode(cmd) @@ -165,7 +187,7 @@ def GetAllDatabase(self) -> tuple([Status, List]): dbs.append(record[1]) return Status(), dbs - def GetTableInfo(self, database, table_name = '') -> tuple([Status, List]): + def GetTableInfo(self, database, table_name = ''): cmd = list(self.ns_base_cmd) cmd.append("--cmd=showtable " + table_name) cmd.append("--database=" + database) @@ -179,7 +201,7 @@ def GetTableInfo(self, database, table_name = '') -> tuple([Status, List]): result.append(record) return Status(), result - def ParseTableInfo(self, table_info) -> Dict[str, List[Partition]]: + def ParseTableInfo(self, table_info): result = {} for record in table_info: is_leader = True if record[4] == "leader" else False @@ -189,14 +211,14 @@ def ParseTableInfo(self, table_info) -> Dict[str, List[Partition]]: result[record[2]].append(partition) return result - def GetTablePartition(self, database, table_name) -> tuple([Status, Dict]): + def GetTablePartition(self, database, table_name): status, result = self.GetTableInfo(database, table_name) if not status.OK: return status, None partition_dict = self.ParseTableInfo(result) return Status(), partition_dict - def GetAllTable(self, database) -> Tuple[Status, List[Partition]]: + def GetAllTable(self, database): status, result = self.GetTableInfo(database) if not status.OK(): return status, None @@ -206,9 +228,9 @@ def GetAllTable(self, database) -> Tuple[Status, List[Partition]]: tables.append(partition[0]) return Status(), tables - def GetTableStatus(self, endpoint, tid = '', pid = '') -> tuple([Status, Dict]): + def GetTableStatus(self, endpoint, tid = '', pid = ''): cmd = list(self.tablet_base_cmd) - cmd.append("--endpoint=" + endpoint) + cmd.append("--endpoint=" + self.endpoint_map[endpoint]) cmd.append("--cmd=gettablestatus " + tid + " " + pid) status, output = self.RunWithRetuncode(cmd) if not status.OK(): @@ -225,9 +247,9 @@ def GetTableStatus(self, endpoint, tid = '', pid = '') -> tuple([Status, Dict]): result[key] = record return Status(), result - def ShowTableStatus(self, pattern = '%') -> tuple([Status, list]): + def ShowTableStatus(self, pattern = '%'): cmd = list(self.sql_base_cmd) - cmd.append(f"--cmd=show table status like '{pattern}';") + cmd.append("--cmd=show table status like '{pattern}';".format(pattern = pattern)) status, output = self.RunWithRetuncode(cmd) if not status.OK(): log.error("show table status failed") @@ -250,11 +272,12 @@ def ShowTableStatus(self, pattern = '%') -> tuple([Status, list]): return Status(), output_processed - def LoadTable(self, endpoint, name, tid, pid, sync = True) -> Status: + def LoadTable(self, endpoint, name, tid, pid, sync = True): cmd = list(self.tablet_base_cmd) - cmd.append("--endpoint=" + endpoint) + cmd.append("--endpoint=" + self.endpoint_map[endpoint]) cmd.append("--cmd=loadtable {} {} {} 0 8".format(name, tid, pid)) status, output = self.RunWithRetuncode(cmd) + time.sleep(1) if status.OK() and output.find("LoadTable ok") != -1: if not sync: return Status() @@ -266,23 +289,23 @@ def LoadTable(self, endpoint, name, tid, pid, sync = True) -> Status: if table_stat == "kTableNormal": return Status() elif table_stat == "kTableLoading" or table_stat == "kTableUndefined": - log.info(f"table is loading... tid {tid} pid {pid}") + log.info("table is loading... tid {tid} pid {pid}".format(tid, pid)) else: - return Status(-1, f"table stat is {table_stat}") + return Status(-1, "table stat is {table_stat}".format(table_stat)) time.sleep(2) return Status(-1, "execute load table failed") - def GetLeaderFollowerOffset(self, endpoint, tid, pid) -> tuple([Status, List]): + def GetLeaderFollowerOffset(self, endpoint, tid, pid): cmd = list(self.tablet_base_cmd) - cmd.append("--endpoint=" + endpoint) + cmd.append("--endpoint=" + self.endpoint_map[endpoint]) cmd.append("--cmd=getfollower {} {}".format(tid, pid)) status, output = self.RunWithRetuncode(cmd) if not status.OK(): return status return Status(), self.ParseResult(output) - def RecoverTablePartition(self, database, name, pid, endpoint, sync = False) -> Status: + def RecoverTablePartition(self, database, name, pid, endpoint, sync = False): cmd = list(self.ns_base_cmd) cmd.append("--cmd=recovertable {} {} {}".format(name, pid, endpoint)) cmd.append("--database=" + database) @@ -293,9 +316,9 @@ def RecoverTablePartition(self, database, name, pid, endpoint, sync = False) -> return Status() return status - def UpdateTableAlive(self, database, name, pid, endpoint, is_alive) -> Status: + def UpdateTableAlive(self, database, name, pid, endpoint, is_alive): if is_alive not in ["yes", "no"]: - return Status(-1, f"invalid argument {is_alive}") + return Status(-1, "invalid argument {is_alive}".format(is_alive)) cmd = list(self.ns_base_cmd) cmd.append("--cmd=updatetablealive {} {} {} {}".format(name, pid, endpoint, is_alive)) cmd.append("--database=" + database) @@ -304,7 +327,7 @@ def UpdateTableAlive(self, database, name, pid, endpoint, is_alive) -> Status: return Status() return Status(-1, "update table alive failed") - def ChangeLeader(self, database, name, pid, endpoint = "auto", sync = False) -> Status: + def ChangeLeader(self, database, name, pid, endpoint = "auto", sync = False): cmd = list(self.ns_base_cmd) cmd.append("--cmd=changeleader {} {} {}".format(name, pid, endpoint)) cmd.append("--database=" + database) @@ -313,7 +336,7 @@ def ChangeLeader(self, database, name, pid, endpoint = "auto", sync = False) -> return Status(-1, "changer leader failed") return status - def ShowOpStatus(self, database, name = '', pid = '') -> tuple([Status, List]): + def ShowOpStatus(self, database, name = '', pid = ''): cmd = list(self.ns_base_cmd) cmd.append("--cmd=showopstatus {} {} ".format(name, pid)) cmd.append("--database=" + database) @@ -322,14 +345,14 @@ def ShowOpStatus(self, database, name = '', pid = '') -> tuple([Status, List]): return status, None return Status(), self.ParseResult(output) - def CancelOp(self, database, op_id) -> Status: + def CancelOp(self, database, op_id): cmd = list(self.ns_base_cmd) cmd.append("--cmd=cancelop {}".format(op_id)) cmd.append("--database=" + database) status, output = self.RunWithRetuncode(cmd) return status - def Migrate(self, database, name, pid, src_endpoint, desc_endpoint, sync = False) -> Status: + def Migrate(self, database, name, pid, src_endpoint, desc_endpoint, sync = False): if src_endpoint == desc_endpoint: return Status(-1, "src_endpoint and desc_endpoint is same") cmd = list(self.ns_base_cmd) @@ -342,7 +365,7 @@ def Migrate(self, database, name, pid, src_endpoint, desc_endpoint, sync = False return Status() return status - def ShowTablet(self) -> tuple([Status, List]): + def ShowTablet(self): cmd = list(self.ns_base_cmd) cmd.append("--cmd=showtablet") status, output = self.RunWithRetuncode(cmd) @@ -350,7 +373,7 @@ def ShowTablet(self) -> tuple([Status, List]): return status, None return Status(), self.ParseResult(output) - def AddReplica(self, database, name, pid, endpoint, sync = False) -> Status: + def AddReplica(self, database, name, pid, endpoint, sync = False): cmd = list(self.ns_base_cmd) cmd.append("--cmd=addreplica {} {} {}".format(name, pid, endpoint)) cmd.append("--database=" + database) @@ -361,7 +384,7 @@ def AddReplica(self, database, name, pid, endpoint, sync = False) -> Status: return Status() return Status(-1, "add replica failed") - def DelReplica(self, database, name, pid, endpoint, sync = False) -> Status: + def DelReplica(self, database, name, pid, endpoint, sync = False): cmd = list(self.ns_base_cmd) cmd.append("--cmd=delreplica {} {} {}".format(name, pid, endpoint)) cmd.append("--database=" + database) @@ -372,7 +395,7 @@ def DelReplica(self, database, name, pid, endpoint, sync = False) -> Status: return Status() return Status(-1, "del replica failed") - def WaitingOP(self, database, name, pid) -> Status: + def WaitingOP(self, database, name, pid): while True: error_try_times = 3 while error_try_times > 0: @@ -385,10 +408,10 @@ def WaitingOP(self, database, name, pid) -> Status: record = result[-1] if record[4] == 'kDoing' or record[4] == 'kInited': value = " ".join(record) - log.info(f"waiting {value}") + log.info("waiting {value}".format(value = value)) time.sleep(2) elif record[4] == 'kFailed': - return Status(-1, f"job {record[0]} execute failed") + return Status(-1, "job {id} execute failed".format(id = record[0])) else: break return Status() From d06067eef12129c3d2721e72211183c5e07a5174 Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Thu, 14 Sep 2023 13:57:38 +0800 Subject: [PATCH 047/111] docs: change_for_install_deploy_of_deploy_folder (#3466) --- docs/en/deploy/images/tablet_ps.png | Bin 0 -> 18431 bytes docs/en/deploy/images/zk_cli.png | Bin 0 -> 5654 bytes docs/en/deploy/images/zk_ps.png | Bin 0 -> 100680 bytes docs/en/deploy/images/zk_started.png | Bin 0 -> 16039 bytes docs/en/deploy/install_deploy.md | 678 ++++++++++++++++++--------- 5 files changed, 444 insertions(+), 234 deletions(-) create mode 100644 docs/en/deploy/images/tablet_ps.png create mode 100644 docs/en/deploy/images/zk_cli.png create mode 100644 docs/en/deploy/images/zk_ps.png create mode 100644 docs/en/deploy/images/zk_started.png 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Where Linux glibc version >= 2.17. Other operating system versions have not been fully tested and cannot be guaranteed to be fully compatible. -* Memory: Depends on the amount of data, 8 GB and above is recommended. -* CPU: - * Currently only the x86 architecture is supported, and architectures such as ARM are currently not supported. - * The number of cores is recommended to be no less than 4 cores. If the CPU does not support the AVX2 instruction set in the Linux environment, the deployment package needs to be recompiled from the source code. +### Operating System + +The pre-compiled packages that have been released offer support for the following operating systems: CentOS 7.x, Ubuntu 20.04, SUSE 12 SP3, and macOS 12. For Linux, a glibc version of >= 2.17 is required. While pre-compiled packages for other operating system distributions have not undergone comprehensive testing and therefore cannot guarantee complete compatibility, you can explore [compiling from source code](compile.md) to extend support to other operating systems. + +````{note} +Linux users can assess their system's compatibility through the following commands: + +```shell +cat /etc/os-release # most linux +cat /etc/redhat-release # redhat only +ldd --version +strings /lib64/libc.so.6 | grep ^GLIBC_ +``` +Generally, ldd version should be >= 2.17, and GLIBC_2.17 should be present in libc.so.6. These factors indicate compatibility with glibc 2.17 for program and dynamic library operations. If the system's glibc version falls below 2.17, compiling from source code is necessary. +```` + +### Third-party Component Dependencies + +If you need to deploy ZooKeeper and TaskManager, you need a Java runtime environment. + +### Hardware + +Regarding hardware requirements: + +- CPU: + - X86 CPU is recommended, preferably with a minimum of 4 cores. + - For users of pre-compiled packages, AVX2 instruction set support is required. Otherwise, consider [compiling from source code](compile.md). +- Memory: + - It is recommended to have at least 8 GB of RAM. For business scenarios involving substantial data loads, 128 GB or more is advisable. +- Other hardware components: + - No specific requirements. However, hard disk and network performance will affect OpenMLDB's latency and throughput performance. ## Deployment Package -The precompiled OpenMLDB deployment package is used by default in this documentation ([Linux](https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz) , [macOS](https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-darwin.tar.gz)), the supported operating system requirements are: CentOS 7, Ubuntu 20.04, macOS >= 10.15. If the user wishes to compile by himself (for example, for OpenMLDB source code development, the operating system or CPU architecture is not in the support list of the precompiled deployment package, etc.), the user can choose to compile and use in the docker container or compile from the source code. For details, please refer to our [compile documentation](compile.md). -## Configure Environment (Linux) +### Download/Source Compilation + +If your operating system is capable of running pre-compiled packages directly, you can download them from the following sources: + +- GitHub Release: https://github.com/4paradigm/OpenMLDB/releases +- Mirror Site (China): http://43.138.115.238/download/ + +The compatible operating systems are as follows: + +- `openmldb-x.x.x-linux.tar.gz`: CentOS 7.x, Ubuntu 20.04, SUSE 12 SP3 +- `openmldb-x.x.x-darwin.tar.gz`: macOS 12 + +If your operating system is not mentioned above or if you want to compile from source code, please refer [here](compile.md) to compile from source code. + +### Linux Platform Compatibility pre-test + +Due to the variations among Linux platforms, the distribution package may not be entirely compatible with your machine. Therefore, it's recommended to conduct a preliminary compatibility test. Download the pre-compiled package `openmldb-0.8.2-linux.tar.gz`, and execute: + +``` +tar -zxvf openmldb-0.8.2-linux.tar.gz +./openmldb-0.8.2-linux/bin/openmldb --version +``` + +The result should display the version number of the program, as shown below: + +``` +openmldb version 0.8.2-xxxx +Debug build (NDEBUG not #defined) +``` + +If it does not run successfully, OpenMLDB needs to be compiled from source code. + +## Environment Configuration + +To ensure a deployment that's both correct and stable, it's advisable to perform the following system configuration steps. The following operations assume that the commands are executed on a Linux system. + +### Configuration of Limits -### configure the size limit of coredump file and open file limit ```bash ulimit -c unlimited ulimit -n 655360 ``` -The configurations set by `ulimit` command only take effect in the current session. -If you want to persist the configurations, add the following configurations in `/etc/security/limits.conf`: +The parameters configured through the `ulimit` command are applicable solely to the current session. For persistent configuration, you should incorporate the following settings into the `/etc/security/limits.conf` file: + ```bash * soft core unlimited * hard core unlimited @@ -28,26 +88,26 @@ If you want to persist the configurations, add the following configurations in ` * hard nofile 655360 ``` -### Disable system swap +### Disable System Swap -Check the status of the swap area. +Check if the current system swap is disabled ```bash $ free - total used free shared buff/cache available -Mem: 264011292 67445840 2230676 3269180 194334776 191204160 -Swap: 0 0 0 + total used free shared buff/cache available +Mem: 264011292 67445840 2230676 3269180 194334776 191204160 +Swap: 0 0 0 ``` -If the swap item is all 0, it means it has been closed, otherwise run the following command to disable all swap. +If the swap item is all 0, it means it has been disabled, otherwise run the following command to disable all swap. ``` swapoff -a ``` -### Disable THP (Transparent Huge Pages) +### Disable THP(Transparent Huge Pages) -Check the status of THP. +Use the following command to check if THP is turned off ``` $ cat /sys/kernel/mm/transparent_hugepage/enabled @@ -56,14 +116,14 @@ $ cat /sys/kernel/mm/transparent_hugepage/defrag [always] madvise never ``` -If "never" is not surrounded by square brackets in the above two configurations, it needs to be set. +If `never` is not set (`[never]`) in the above two configurations, use the following command to configure: ```bash echo 'never' > /sys/kernel/mm/transparent_hugepage/enabled echo 'never' > /sys/kernel/mm/transparent_hugepage/defrag ``` -Check whether the setting is successful. If "never" is surrounded by square brackets, it means that the setting has been successful, as shown below: +Check if the settings were successful, as shown below: ```bash $ cat /sys/kernel/mm/transparent_hugepage/enabled @@ -72,128 +132,82 @@ $ cat /sys/kernel/mm/transparent_hugepage/defrag always madvise [never] ``` -Note: You can also use the script to modify the above configurations, refer [here](#configure-node-environment-optional) - -### Time and zone settings - -The OpenMLDB data expiration deletion mechanism relies on the system clock. If the system clock is incorrect, the expired data will not be deleted or the data that has not expired will be deleted. - -```bash -$date -Wed Aug 22 16:33:50 CST 2018 -``` -Please make sure the time is correct. - -## Deploy Standalone Version +Note: The above three configurations can also be modified through a script, refer to [Modify Machine Environment Configuration](#modify-machine-environment-configuration-optional) -OpenMLDB standalone version needs to deploy a nameserver and a tablet. The nameserver is used for table management and metadata storage, and the tablet is used for data storage. APIServer is optional. If you want to interact with OpenMLDB using REST APIs, you need to deploy this module. +### Time Zone Settings -### Download the OpenMLDB Release Package +OpenMLDB's data expiration and deletion mechanism relies on system clock. Incorrect system clock settings can result in either expired data not being removed or non-expired data being deleted. -``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -cd openmldb-0.8.2-linux -``` +### Network Whitelist -### Configuration -If OpenMLDB is only accessed locally, can skip this step. -#### 1. Configure tablet: conf/standalone_tablet.flags +The components comprising the OpenMLDB cluster's services require consistent network connectivity. When it comes to client communication with OpenMLDB clusters, two scenarios exist: -* Modify `endpoint`. The endpoint is the deployment machine ip/domain name and port number separated by colons. +- To establish a connection between the client (CLI and SDKs) and the OpenMLDB cluster, it is essential to not only have connectivity with ZooKeeper but also ensure access to Nameserver/ TabletServer/ TaskManager. +- If the service solely utilizes APIServer for communication, then the client is only required to ensure access to the APIServer port. -``` ---endpoint=172.27.128.33:9527 -``` +## High Availability Clusters -**Notice:** +In production environments, we strongly recommend deploying OpenMLDB clusters with high availability. For a high availability deployment architecture, we provide our recommended [High Availability Deployment Best Practices](../maintain/backup.md). -* The endpoint cannot use 0.0.0.0 and 127.0.0.1. -* If the domain name is used here, all the machines where the client using OpenMLDB is located must be equipped with the corresponding host. Otherwise, it will not be accessible. +## Daemon Startup Method -#### 2. Configure nameserver: conf/standalone_nameserver.flags +OpenMLDB offers two startup modes: Normal and Daemon. Daemon startup provides an additional layer of safeguard by automatically restarting the service process in case of unexpected termination. -* Modify `endpoint`. The endpoint is the deployment machine ip/domain name and port number separated by colons. -* The `tablet` configuration item needs to be configured with the address of the tablet that was started earlier. - -``` ---endpoint=172.27.128.33:6527 ---tablet=172.27.128.33:9527 -``` +- Daemon is not a system service; if a daemon unexpectedly exits, it will lose its daemon functionality +- Each process corresponds to an independent daemon. +- Killing a daemon using the `SIGKILL` signal will not lead to the exit of the associated daemon. To revert to normal startup mode for the daemon, you need to halt the associated process and then initiate it as a daemon. +- If the daemon is killed by a non-`SIGKILL` signal, the associated processes will exit upon the daemon's termination. -**Notice**: The endpoint cannot use 0.0.0.0 and 127.0.0.1. +To commence daemon mode, use either `bash bin/start.sh start mon` or `sbin/start-all.sh mon`. In daemon mode, `bin/.pid` contains the PID of the mon process, while `bin/.pid.child` stores the actual PID of the component. +## Deployment Method 1: One-click Deployment (Recommended) +The OpenMLDB cluster version requires the deployment of ZooKeeper, NameServer, TabletServer, and TaskManager. ZooKeeper serves for service discovery and metadata preservation. NameServer manages TabletServer for achieving high availability and failover. TabletServer stores data and synchronizes master-slave data. APIServer is an optional component; if interaction with OpenMLDB via HTTP is desired, this module must be deployed. TaskManager oversees offline jobs. We provide a one-click deployment script to simplify the process, eliminating the need for manual downloading and configuration on each machine. -#### 3. Configure apiserver: conf/standalone_apiserver.flags -APIServer is responsible for receiving http requests, forwarding them to OpenMLDB and returning results. It is stateless and is not a must-deploy component of OpenMLDB. -Before starting the APIServer, make sure that the OpenMLDB cluster has been started, otherwise APIServer will fail to initialize and exit the process. +**Note**: When deploying multiple components on the same machine, it's crucial to place them in distinct directories for streamlined management. This is particularly important while deploying TabletServer, as it's essential to avoid directory reuse to prevent conflicts between data and log files. -* Modify `endpoint`. The endpoint is the deployment machine ip/domain name and port number separated by colons. -* Modify `nameserver` to be the address of Nameserver. +DataCollector and SyncTool currently do not support one-click deployment. Please refer to the manual deployment method for these components. -``` ---endpoint=172.27.128.33:8080 ---nameserver=172.27.128.33:6527 -``` +### Environment Requirement -**Notice:** +- Deployment machines (machines executing deployment scripts) should have password-less access to other deployment nodes. +- Deployment machine: `rsync` +- Deployment machine: Python3 +- ZooKeeper and TaskManager machines: Java Runtime Environment -* The endpoint cannot use 0.0.0.0 and 127.0.0.1. You can also choose not to set `--endpoint`, and only configure the port number `--port`. +### Download OpenMLDB -### Start All the Service -Make sure `OPENMLDB_MODE=standalone` in the `conf/openmldb-env.sh` (default) ``` -sbin/start-all.sh +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz +tar -zxvf openmldb-0.8.2-linux.tar.gz +cd openmldb-0.8.2-linux ``` -After the service is started, the standalone_tablet.pid, standalone_nameserver.pid and standalone_apiserver.pid files will be generated in the `bin` directory, and the process numbers at startup will be saved in them. If the pid inside the file is running, the startup will fail. - -## Deploy Cluster Version (Auto) -OpenMLDB cluster version needs to deploy Zookeeper, Nameserver, Tablet, TaskManager and other modules. Among them, Zookeeper is used for service discovery and saving metadata information. The Nameserver is used to manage the tablet, achieve high availability and failover. Tablets are used to store data and synchronize data between master and slave. APIServer is optional. If you want to interact with OpenMLDB in http, you need to deploy this module. +### Environment Configuration -Notice: It is best to deploy different components in different directories for easy upgrades individually. If multiple tablets are deployed on the same machine, they also need to be deployed in different directories. +The environment variables are defined in `conf/openmldb-env.sh`, as shown in the following table: -Environment Requirements: -- the deploy node has password-free login to other nodes -- `rsync` is required -- Python3 is required -- JRE (Java Runtime Environment) is required on the node where Zookeeper and TaskManager are deployed +| Environment Variable | Default Value | Note | +| --------------------------------- | ------------------------------------------------------- | ------------------------------------------------------------ | +| OPENMLDB_VERSION | 0.8.2 | OpenMLDB version | +| OPENMLDB_MODE | standalone | standalone or cluster | +| OPENMLDB_HOME | root directory of the release folder | openmldb root directory | +| SPARK_HOME | $OPENMLDB_HOME/spark | openmldb spark root directory,If the directory does not exist, it will be downloaded automatically.| +| OPENMLDB_TABLET_PORT | 10921 | TabletServer default port | +| OPENMLDB_NAMESERVER_PORT | 7527 | NameServer default port | +| OPENMLDB_TASKMANAGER_PORT | 9902 | taskmanager default port | +| OPENMLDB_APISERVER_PORT | 9080 | APIServer default port | +| OPENMLDB_USE_EXISTING_ZK_CLUSTER | false | Whether to use an already deployed ZooKeeper cluster. If 'false,' the deployment script will automatically start the ZooKeeper cluster. | +| OPENMLDB_ZK_HOME | $OPENMLDB_HOME/zookeeper | ZooKeeper root directory | +| OPENMLDB_ZK_CLUSTER | auto derived from `[zookeeper]` section in `conf/hosts` | ZooKeeper cluster address | +| OPENMLDB_ZK_ROOT_PATH | /openmldb | OpenMLDB root directory in ZooKeeper | +| OPENMLDB_ZK_CLUSTER_CLIENT_PORT | 2181 | ZooKeeper client port, the client port in zoo.cfg | +| OPENMLDB_ZK_CLUSTER_PEER_PORT | 2888 | ZooKeeper peer port,the first port in settings like "server.1=zoo1:2888:3888" in zoo.cfg | +| OPENMLDB_ZK_CLUSTER_ELECTION_PORT | 3888 | ZooKeeper election port, the second port in settings like "server.1=zoo1:2888:3888" in zoo.cfg | +### Node Configuration -### Download the OpenMLDB Deployment Package +The node configuration file is `conf/hosts`, as shown in the following example: -``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -cd openmldb-0.8.2-linux -``` - -### Configuration -#### Configure the environment -The environment variables are defined in `conf/openmldb-env.sh`, -which are listed below. - -| Environment Variables | Default Values | Definitons | -|-----------------------------------|---------------------------------------------------------|-------------------------------------------------------------------------------------------------------| -| OPENMLDB_VERSION | 0.8.2 | OpenMLDB version | -| OPENMLDB_MODE | standalone | standalone or cluster mode | -| OPENMLDB_HOME | root directory of the release folder | openmldb root path | -| SPARK_HOME | $OPENMLDB_HOME/spark | the root path of openmldb spark release. if not exists, download from online | -| OPENMLDB_TABLET_PORT | 10921 | the default port for tablet | -| OPENMLDB_NAMESERVER_PORT | 7527 | the default port for nameserver | -| OPENMLDB_TASKMANAGER_PORT | 9902 | the default port for taskmanager | -| OPENMLDB_APISERVER_PORT | 9080 | the default port for apiserver | -| OPENMLDB_USE_EXISTING_ZK_CLUSTER | false | whether use an existing zookeeper cluster. If `false`, start its own zk cluster in the deploy scripts | -| OPENMLDB_ZK_HOME | $OPENMLDB_HOME/zookeeper | the root path of zookeeper release | -| OPENMLDB_ZK_CLUSTER | auto derived from `[zookeeper]` section in `conf/hosts` | the zookeeper cluster address | -| OPENMLDB_ZK_ROOT_PATH | /openmldb | zookeeper root path | -| OPENMLDB_ZK_CLUSTER_CLIENT_PORT | 2181 | zookeeper client port, i.e., clientPort in zoo.cfg | -| OPENMLDB_ZK_CLUSTER_PEER_PORT | 2888 | zookeeper peer port, which is the first port in this config server.1=zoo1:2888:3888 in zoo.cfg | -| OPENMLDB_ZK_CLUSTER_ELECTION_PORT | 3888 | zookeeper election port, which is the second port in this config server.1=zoo1:2888:3888 in zoo.cfg | - -#### Configure the deployment node - -The node list is defined in `conf/hosts`, for example: ```bash [tablet] node1:10921 /tmp/openmldb/tablet @@ -206,81 +220,91 @@ node3:7527 node3:9080 [taskmanager] -localhost:9902 +node3:9902 [zookeeper] node3:2181:2888:3888 /tmp/openmldb/zk-1 ``` -The configuration file is divided into four sections, identified by `[]`: -- `[tablet]`:tablet node list -- `[nameserver]`:nameserver node list -- `[apiserver]`:apiserver node list -- `[taskmanager]`:taskmanager node list -- `[zookeeper]`:zookeeper node list +The configuration file is segmented into five sections, each identified by `[ ]` brackets: -For each node list, one line represents one node, with the format of `host:port WORKDIR`. -Specially, for the `[zookeeper]`, its format is `host:port:zk_peer_port:zk_election_port WORKDIR`, -where there are extra port parameters, -including `zk_peer_port` for the connection between followers and leader, -and `zk_election_port` for the leader election. +- `[tablet]`: Configure the node list for deploying TabletServer. +- `[nameserver]`: Specify the node list for deploying NameServer. +- `[apiserver]`: Define the node list for deploying APIServer. +- `[taskmanager]`: List the nodes for configuring and deploying TaskManager. +- `[zookeeper]`: Indicate the node list for deploying ZooKeeper. -Note that for every node configuration, only the `host` is required, while others are optional. -If the optional parameters are not provided, -default values are used, which are defined in `conf/openmldb-env.sh`. +For each section, each entry represents one node, following the format `host:port WORKDIR`. In the case of `[zookeeper]`, additional ports are included: `zk_peer_port` for follower to connect to the leader, and `zk_election_port` for leader election. The format is `host:port:zk_peer_port:zk_election_port WORKDIR`. + +In the node list, except for the mandatory `host`, other elements are optional. If omitted, default configurations will be utilized, please refer to `conf/openmldb-env.sh` for default settings. ```{warning} -If multiple TaskManager instances are deployed in different machines,the `offline.data.prefix` should be configured to be globally accessabile by these machines (e.g., hdfs path). +If multiple TaskManager instances are deployed on distinct machines, the configured paths for offline.data.prefix must be accessible across these machines. Configuring the HDFS path is recommended. ``` -### Configure Node Environment (Optional) +### Modify Machine Environment Configuration (Optional) + ``` bash sbin/init_env.sh ``` Note: -- The script needs to be executed by the `root` user. -- The script will modify the `limit`, disable the `swap` and `THP`. - +- This script requires root execution. Other scripts does not require root privileges. +- The script only modifies limit configurations, disabling swap and THP. ### Deployment + ```bash sbin/deploy-all.sh ``` -It will distribute all the required files to the nodes defined in `conf/hosts`, -and conduct custom configuration based on `conf/hosts` and `conf/openmldb-env.sh`. -If users want to do other custom configurations, users can modify the `conf/xx.template` -before running the `deploy-all.sh` script, -so that the updated configurations will be reflected in the deployed nodes. +This script will distribute pertinent files to machines configured in `conf/hosts`. Simultaneously, it will incorporate updates to the configuration of related components based on `conf/hosts` and `conf/openmldb-env.sh`. + +If you wish to include additional customized configurations for each node, you can modify the settings in `conf/xx.template` prior to running the deployment script. By doing so, when distributing configuration files, each node can utilize the altered configuration. Running `sbin/deploy-all.sh` repeatedly will overwrite previous configurations. -Repeated execution of `sbin/deploy-all.sh` will overwrite the last deployment. +For comprehensive configuration instructions, kindly consult the [Configuration File](conf.md). Please pay attention to the detailed configuration of Spark for TaskManager, as outlined in [Spark Config Details](https://chat.openai.com/c/conf.md#spark-config-details). ### Start the Services + +Start in normal mode: + ```bash sbin/start-all.sh ``` -This script will launch all the services defined in `conf/hosts`. -Users can use `sbin/openmldb-cli.sh` to connect the cluster and verify -the services are launched successfully. +Alternatively, use daemon mode to start: + +```bash +sbin/start-all.sh mon +``` + +This script will initiate all services configured in `conf/hosts`. After startup, you can utilize the script (`sbin/openmldb-cli.sh`) to initiate the CLI to verify if the cluster has been started normally. + +```{tip} +start-all.sh is an immensely useful tool. Beyond the deployment phase, it can be employed during operation and maintenance to launch an offline OpenMLDB process. For instance, if a tablet process unexpectedly goes offline, you can directly execute start-all.sh. This script won't impact already initiated processes, but will automatically start configured but uninitiated processes. +``` + +### Stop the services + +If you need to stop all services, execute the following script: -#### Stop the Services -If users want to stop all the services, can execute the following script: ```bash sbin/stop-all.sh ``` -## Deploy Cluster Version (Manual) -OpenMLDB cluster version needs to deploy Zookeeper, Nameserver, Tablet, TaskManager and other modules. Among them, Zookeeper is used for service discovery and saving metadata information. The Nameserver is used to manage the tablet, achieve high availability and failover. Tablets are used to store data and synchronize data between master and slave. APIServer is optional. If you want to interact with OpenMLDB in http, you need to deploy this module. +## Deployment Method 2: Manual Deployment + +The OpenMLDB cluster version requires the deployment of ZooKeeper, NameServer, TabletServer, and TaskManager. ZooKeeper serves for service discovery and metadata preservation. NameServer manages TabletServer for achieving high availability and failover. TabletServer stores data and synchronizes master-slave data. APIServer is an optional component; if interaction with OpenMLDB via HTTP is desired, this module must be deployed. TaskManager oversees offline jobs. -**Notice:** It is best to deploy different components in different directories for easy upgrades individually. If multiple tablets are deployed on the same machine, they also need to be deployed in different directories. +**Note 1**: When deploying multiple components on the same machine, it's crucial to place them in distinct directories for streamlined management. This is particularly important while deploying TabletServer, as it's essential to avoid directory reuse to prevent conflicts between data and log files. -### Deploy Zookeeper +**Note 2**: In the following sections, we use normal mode to initiate components. If you prefer to start components in daemon mode, use `bash bin/start.sh start mon`. -The required zookeeper version is >= 3.4 and <= 3.6, it is recommended to deploy version 3.4.14. You can skip this step if there is an available zookeeper cluster. +(zookeeper_addr)= +### Deploy ZooKeeper +ZooKeeper requires a version between 3.4 and 3.6. We recommend version 3.4.14 for deployment. If existing ZooKeeper clusters are available, this step can be skipped. If you're aiming to deploy a ZooKeeper cluster, refer to [here](https://zookeeper.apache.org/doc/r3.4.14/zookeeperStarted.html#sc_RunningReplicatedZooKeeper). We only demonstrate standalone ZooKeeper deployment. -#### 1. Download the Zookeeper Installation Package +**1. Download the ZooKeeper installation package** ``` wget https://archive.apache.org/dist/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz @@ -289,8 +313,7 @@ cd zookeeper-3.4.14 cp conf/zoo_sample.cfg conf/zoo.cfg ``` -#### 2. Modify the Configuration File - +**2. Modify the configuration file** Open the file `conf/zoo.cfg` and modify `dataDir` and `clientPort`. ``` @@ -298,17 +321,44 @@ dataDir=./data clientPort=7181 ``` -#### 3. Start Zookeeper +**3. Start ZooKeeper** ``` bash bin/zkServer.sh start ``` -Deploy the Zookeeper cluster [refer to here](https://zookeeper.apache.org/doc/r3.4.14/zookeeperStarted.html#sc_RunningReplicatedZooKeeper). +The successful startup will be shown in the following figure, with a prompt of `STARTED`. + +![zk started](images/zk_started.png) + +You can also see the ZooKeeper process running through `ps f|grep zoo.cfg`. + +![zk ps](images/zk_ps.png) + +```{attention} +If ZooKeeper process fails to start, please check ZooKeeper.out in the current directory. +``` + +**4. ZooKeeper Service Address and Connection Test** +You'll need to configure the ZooKeeper service address, while connecting TabletServer, NameServer, and TaskManager to ZooKeeper. To enable cross-host access to the ZooKeeper service, you'll need a public IP (assuming `172.27.128.33` here; remember to input your actual ZooKeeper deployment machine IP). The ZooKeeper service address is inferred from the `clientPort` value entered in the second step, which in this case is `172.27.128.33:7181`. + +To test the connection with ZooKeeper, use `zookeeper-3.4.14/bin/zkCli.sh`, and ensure you run it from within the `zookeeper-3.4.14` directory. + +``` +bash bin/zkCli.sh -server 172.27.128.33:7181 +``` + +You can enter the zk client program, as shown in the following figure, with a prompt of `CONNECTED`. + +![zk cli](images/zk_cli.png) + +Enter `quit` or `Ctrl+C` to exit the zk client. -### Deploy Tablet +### Deploy TabletServer -#### 1. Download the OpenMLDB Deployment Package +Note that at least two TabletServer need to be deployed, otherwise errors may occur. + +**1. Download the OpenMLDB deployment package** ``` wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz @@ -317,98 +367,181 @@ mv openmldb-0.8.2-linux openmldb-tablet-0.8.2 cd openmldb-tablet-0.8.2 ``` -#### 2. Modify the Configuration File: conf/tablet.flags +**2. Modify the configuration file `conf/tablet.flags`** + ```bash -# can update the config based on the template provided +# Modifications can be made based on the sample configuration file cp conf/tablet.flags.template conf/tablet.flags ``` -* Modify `endpoint`. The endpoint is the deployment machine ip/domain name and port number separated by colons. -* Modify `zk_cluster` to the already started zk cluster address. -* If you share zk with other OpenMLDB, you need to modify `zk_root_path`. +```{attention} +Please note that the configuration file to modify is `conf/tablet.flags`, not any other configuration file. Even when starting multiple TabletServers (with independent, non-shareable directories for each), the same configuration file should be modified. +``` + +Here are the steps for modification: + +- Modify the `endpoint`: The `endpoint` comprises an IP address/domain name and port number, separated by a colon (Note: endpoint cannot be set to 0.0.0.0 or 127.0.0.1; it must be a public IP). +- Update `zk_cluster` with the address of the ZooKeeper service that has already been initiated (refer to [Deploy ZooKeeper - 4. ZooKeeper Service Address and Connection Test](zookeeper_addr)). If the ZooKeeper service is in a cluster, multiple addresses can be separated by commas. For instance: `172.27.128.33:7181,172.27.128.32:7181,172.27.128.31:7181`. +- Modify `zk_root_path` with the appropriate value; in this example, `/openmldb_cluster` is used. It's crucial to note that **components within the same cluster share the same `zk_root_path`**. In this deployment, all component `zk_root_path` values are set to `/openmldb_cluster`. ``` --endpoint=172.27.128.33:9527 --role=tablet -# If tablet run as cluster mode zk_cluster and zk_root_path should be set: ---zk_cluster=172.27.128.33:7181,172.27.128.32:7181,172.27.128.31:7181 +# if tablet run as cluster mode zk_cluster and zk_root_path should be set +--zk_cluster=172.27.128.33:7181 --zk_root_path=/openmldb_cluster ``` -**Notice:** +**Note:** -* The endpoint cannot use 0.0.0.0 and 127.0.0.1. -* If the domain name is used here, all the machines with OpenMLDB clients must be configured with the corresponding host. Otherwise, it will not be accessible. -* The configuration of `zk_cluster` and `zk_root_path` is consistent with that of Nameserver. +* If the endpoint configuration employs a domain name, all machines utilizing the OpenMLDB client must have the corresponding host configured. Otherwise, it will not be accessible. -#### 3. Start the Service +**3. Start the service** ``` bash bin/start.sh start tablet ``` -Repeat the above steps to deploy multiple tablets. +After startup, there should be a `success` prompt, as shown below. + +``` +Starting tablet ... +Start tablet success +``` -**Notice:** +View the process status through the `ps f | grep tablet`. +![tablet ps](images/tablet_ps.png) -* After the service is started, the tablet.pid file will be generated in the bin directory, and the process number at startup will be saved in it. If the pid inside the file is running, the startup will fail. -* Cluster version needs to deploy at least 2 tablets. -* If you need to deploy multiple tablets, deploy all the tablets before deploying the Nameserver. +Through `curl http://:/status` You can also test whether TabletServer is running normally. -### Deploy Nameserver +```{attention} +If you encounter issues like TabletServer failing to start or the process exiting after running for a while, you can examine the logs/tablet.WARNING file within the TabletServer's startup directory. For more detailed information, refer to the logs/tablet.INFO file. If the IP address is already in use, modify the TabletServer's endpoint port and restart it. Prior to starting, ensure that there are no `db, logs, or recycle` directories within the startup directory. You can use the command `rm -rf db logs` recycle to delete these directories, preventing legacy files and logs from interfering with current operations. If you are unable to resolve the issue, reach out to the community and provide the logs. +``` -#### 1. Download the OpenMLDB Deployment Package +**4. Repeat the above steps to deploy multiple TabletServers** +```{important} +For clustered versions, the number of TabletServers must be 2 or more. If there's only 1 TabletServer, starting the NameServer will fail. The NameServer logs (logs/nameserver.WARNING) will contain logs indicating "is less than system table replica num." ``` + +To start the next TabletServer on a different machine, simply repeat the aforementioned steps on that machine. If starting the next TabletServer on the same machine, ensure it's in a different directory, and do not reuse a directory where the TabletServer is already running. + +For instance, you can decompress the package again (avoid using a directory where TabletServer is already running, as files generated after startup may be affected), and name the directory `openmldb-tablet-0.8.2-2`. + +``` +tar -zxvf openmldb-0.8.2-linux.tar.gz +mv openmldb-0.8.2-linux openmldb-tablet-0.8.2-2 +cd openmldb-tablet-0.8.2-2 +``` + +Modify the configuration again and start the TabletServer. Note that if all TabletServers are on the same machine, use different port numbers to avoid "Fail to listen" error in the log (`logs/tablet.WARNING`). + +**Note:** + +- After the service starts, a `tablet.pid` file will be generated in the `bin` directory, storing the process number during startup. If the PID in this file is already running, starting the service will fail. + +### Deploy NameServer + +```{attention} +Please ensure that all TabletServer have been successfully started before deploying NameServer. The deployment order cannot be changed. +``` + +**1. Download the OpenMLDB deployment package** + +```` wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz tar -zxvf openmldb-0.8.2-linux.tar.gz mv openmldb-0.8.2-linux openmldb-ns-0.8.2 cd openmldb-ns-0.8.2 -``` +```` + +**2. Modify the configuration file conf/nameserver.flags** -#### 2. Modify the Configuration File: conf/nameserver.flags ```bash -# can update the config based on the template provided +# Modifications can be made based on the sample configuration file cp conf/nameserver.flags.template conf/nameserver.flags ``` -* Modify `endpoint`. The endpoint is the deployment machine ip/domain name and port number separated by colons. -* Modify `zk_cluster` to the address of the zk cluster that has been started. IP is the machine address where zk is located, and port is the port number configured by clientPort in the zk configuration file. If zk is in cluster mode, separate it with commas, and the format is ip1:port1,ip2:port2, ip3:port3. -* If you share zk with other OpenMLDB, you need to modify `zk_root_path`. +```{attention} +Please note that the configuration file is `conf/nameserver.flags` and not any other configuration file. When starting multiple NameServers (each in an independent directory, not shareable), you should modify the configuration file accordingly. +``` + +* Modify the `endpoint`. The `endpoint` consists of a colon-separated deployment machine IP/domain name and port number (endpoints cannot use 0.0.0.0 and 127.0.0.1, and must be a public IP). +* Modify `zk_cluster` to point to the address of the ZooKeeper service that has already been started (see [Deploy ZooKeeper - 4. ZooKeeper Service Address and Connection Test](zookeeper_addr)). If the ZooKeeper service is a cluster, separate the addresses with commas, for example, `172.27.128.33:7181,172.27.128.32:7181,172.27.128.31:7181`. +* Modify `zk_root_path`. In this example, `/openmldb_cluster` is used. Note that **components under the same cluster share the same `zk_root_path`**. So in this deployment, the `zk_root_path` for each component's configuration is `/openmldb_cluster`. ``` --endpoint=172.27.128.31:6527 ---zk_cluster=172.27.128.33:7181,172.27.128.32:7181,172.27.128.31:7181 +--zk_cluster=172.27.128.33:7181 --zk_root_path=/openmldb_cluster ``` -**Notice:** The endpoint cannot use 0.0.0.0 and 127.0.0.1. - -#### 3. Start the Service +**3. Start the service** ``` bash bin/start.sh start nameserver ``` -Repeat the above steps to deploy multiple nameservers. +After startup, there should be a `success` prompt, as shown below. + +``` +Starting nameserver ... +Start nameserver success +``` + +You can also use `curl http://:/status` to check if NameServer is running properly. + +**4. Repeat the above steps to deploy multiple NameServer** + +You can have only one NameServer, but if you need high availability, you can deploy multiple NameServers. + +To start the next NameServer on another machine, simply repeat the above steps on that machine. If starting the next NameServer on the same machine, ensure it's in a different directory and do not reuse the directory where NameServer has already been started. + +For instance, you can decompress the package again (avoid using the directory where NameServer is already running, as files generated after startup may be affected) and name the directory `openmldb-ns-0.8.2-2`. + +``` +tar -zxvf openmldb-0.8.2-linux.tar.gz +mv openmldb-0.8.2-linux openmldb-ns-0.8.2-2 +cd openmldb-ns-0.8.2-2 +``` + +Then modify the configuration and start. + +**Note:** + +- After the service starts, a `nameserver.pid` file will be generated in the `bin` directory, storing the process number at startup. If the PID in this file is already running, starting the service will fail. +- Please deploy all TabletServers before deploying the NameServer. -#### 4. Verify the Running Status of the Service +**5. Check if the service is started** + +```{attention} +At least one NameServer must be deployed to query the service components that have been started by the **current** cluster using the following method. +``` ```bash -$ ./bin/openmldb --zk_cluster=172.27.128.31:7181,172.27.128.32:7181,172.27.128.33:7181 --zk_root_path=/openmldb_cluster --role=ns_client -> shown - endpoint role ------------------------------ - 172.27.128.31:6527 leader +echo "show components;" | ./bin/openmldb --zk_cluster=172.27.128.33:7181 --zk_root_path=/openmldb_cluster --role=sql_client +``` + +The result is **similar** to the figure below, where you can see all the TabletServer and NameServer that you have already deployed. + +``` + ------------------- ------------ --------------- -------- --------- + Endpoint Role Connect_time Status Ns_role + ------------------- ------------ --------------- -------- --------- + 172.27.128.33:9527 tablet 1665568158749 online NULL + 172.27.128.33:9528 tablet 1665568158741 online NULL + 172.27.128.31:6527 nameserver 1665568159782 online master + ------------------- ------------ --------------- -------- --------- ``` ### Deploy APIServer -APIServer is responsible for receiving http requests, forwarding them to OpenMLDB and returning results. It is stateless and is not a must-deploy component of OpenMLDB. -Before running, make sure that the OpenMLDB cluster has been started, otherwise APIServer will fail to initialize and exit the process. +APIServer is responsible for receiving HTTP requests, forwarding them to the OpenMLDB cluster, and returning the results. It operates in a stateless manner. APIServer is an optional component for OpenMLDB deployment. If you don't require the HTTP interface, you can skip this step and proceed to the next step [Deploy TaskManager](deploy_taskmanager). + +Before running APIServer, ensure that the TabletServer and NameServer processes of the OpenMLDB cluster have been started (TaskManager doesn't affect the startup of APIServer). Failure to do so will result in APIServer failing to initialize and exiting the process. -#### 1. Download the OpenMLDB Deployment Package +**1. Download the OpenMLDB deployment package** ``` wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz @@ -417,70 +550,97 @@ mv openmldb-0.8.2-linux openmldb-apiserver-0.8.2 cd openmldb-apiserver-0.8.2 ``` -#### 2. Modify the Configuration File: conf/apiserver.flags +**2. Modify the configuration file conf/apiserver.flags** + ```bash -# can update the config based on the template provided +# Modifications can be made based on the sample configuration file cp conf/apiserver.flags.template conf/apiserver.flags ``` -* Modify `endpoint`. The endpoint is the deployment machine ip/domain name and port number separated by colons. -* Modify ``zk_cluster`` to the zk cluster address of OpenMLDB to be forwarded to. +* Modify the `endpoint`. The `endpoint` consists of a colon-separated deployment machine IP/domain name and port number (endpoints cannot use 0.0.0.0 and 127.0.0.1, and must be a public IP). +* Modify `zk_cluster` to point to the address of the ZooKeeper service that has already been started (see [Deploy ZooKeeper - 4. ZooKeeper Service Address and Connection Test](zookeeper_addr)). If the ZooKeeper service is a cluster, separate the addresses with commas, for example, `172.27.128.33:7181,172.27.128.32:7181,172.27.128.31:7181`. +* Modify `zk_root_path`. In this example, `/openmldb_cluster` is used. Note that **components under the same cluster share the same `zk_root_path`**. So in this deployment, the `zk_root_path` for each component's configuration is `/openmldb_cluster`. ``` --endpoint=172.27.128.33:8080 ---role=apiserver ---zk_cluster=172.27.128.33:7181,172.27.128.32:7181,172.27.128.31:7181 +--zk_cluster=172.27.128.33:7181 --zk_root_path=/openmldb_cluster ---openmldb_log_dir=./logs ``` -**Notice:** +**Note**: -* The endpoint cannot use 0.0.0.0 and 127.0.0.1. You can also choose not to set `--endpoint`, and only configure the port number `--port`. -* You can also configure the number of threads of APIServer, `--thread_pool_size`, the default is 16. +- If the concurrency of HTTP requests is high, you can increase the number of `--thread_pool_size` on the APIServer, default is 16, and restart for changes to take effect. -#### 3. Start the Service +**3. Start the service** ``` bash bin/start.sh start apiserver ``` -**Notice:** If the program crashes when starting the nameserver/tablet/apiserver using the OpenMLDB release package, it is very likely that the instruction set is incompatible, and you need to compile OpenMLDB through the source code. For source code compilation, please refer to [here](./compile.md), you need to use method 3 to compile the complete source code. +After startup, there should be a `success` prompt, as shown below. + +``` +Starting apiserver ... +Start apiserver success +``` + +```{attention} +APIServer is a non essential component, so it will not appear in `show components;`. +``` + +You can use `curl http://:/status` to check if APIServer is running normally. However, it is recommended to test its normal operation by executing SQL commands +: +``` +curl http://:/dbs/foo -X POST -d'{"mode":"online","sql":"show components;"}' +``` + +The results should include information about all TabletServer and NameServer that have been started. + +(deploy_taskmanager)= ### Deploy TaskManager -TaskManager can be deployed in single server. You can deploy multiple instances for high availability. If the master server of TaskManagers fails, the slaves will replace the master for failover and the client will reconnect automatically. +You can have only one TaskManager, but if you require high availability, you can deploy multiple TaskManagers, taking care to avoid IP and port conflicts. If the TaskManager master node experiences a failure, a slave node will automatically recover and replace the master node. Clients can continue accessing the TaskManager service without any modifications. -#### 1. Download the OpenMLDB Spark Distribution that is Optimized for Feature Engineering +**1. Download the OpenMLDB deployment package and Spark distribution for feature engineering optimization** -``` +Spark distribution: + +```shell wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.2/spark-3.2.1-bin-openmldbspark.tgz -tar -zxvf spark-3.2.1-bin-openmldbspark.tgz +# Image address (China):http://43.138.115.238/download/v0.8.2/spark-3.2.1-bin-openmldbspark.tgz +tar -zxvf spark-3.2.1-bin-openmldbspark.tgz +export SPARK_HOME=`pwd`/spark-3.2.1-bin-openmldbspark/ +``` + +OpenMLDB deployment package: +``` wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz tar -zxvf openmldb-0.8.2-linux.tar.gz mv openmldb-0.8.2-linux openmldb-taskmanager-0.8.2 cd openmldb-taskmanager-0.8.2 ``` -#### 2. Modify the Configuration File conf/taskmanager.properties +**2. Modify the configuration file conf/taskmanager.properties** + ```bash -# can update the config based on the template provided +# Modifications can be made based on the sample configuration file cp conf/taskmanager.properties.template conf/taskmanager.properties ``` -* Modify `server.host`. The host is the ip/domain name of the deployment machine. -* Modify `server.port`. The port is the port number of the deployment machine. -* Modify `zk_cluster` to the address of the zk cluster that has been started. IP is the address of the machine where zk is located, and port is the port number configured by clientPort in the zk configuration file. If zk is in cluster mode, it is separated by commas, and the format is ip1:port1,ip2:port2,ip3:port3. -* If you share zk with other OpenMLDB, you need to modify zookeeper.root_path. -* Modify `batchjob.jar.path` to the BatchJob Jar file path. If it is set to empty, it will search in the upper-level lib directory. If you use Yarn mode, you need to modify it to the corresponding HDFS path. -* Modify `offline.data.prefix` to the offline table storage path. If Yarn mode is used, it needs to be modified to the corresponding HDFS path. -* Modify `spark.master` to run in offline task mode, currently supports local and yarn modes. -* Modify `spark.home` to the Spark environment path. If it is not configured or the configuration is empty, the configuration of the SPARK_HOME environment variable will be used. It needs to be set as the directory where the spark-optimized package is extracted in the first step, and the path is an absolute path. +* Modify `server.host`: Set it to the IP address or domain name of the deployment machine. +* Modify `server.port`: Set it to the port number of the deployment machine. +* Modify `zk_cluster`: Set it to the address of the ZooKeeper cluster that has been started. The IP should point to the machine where ZooKeeper is located, and the port should match the `clientPort` configured in the ZooKeeper configuration file. If ZooKeeper is in cluster mode, separate addresses using commas in the format `ip1:port1,ip2:port2,ip3:port3`. +* If sharing ZooKeeper with other OpenMLDB instances, modify `zookeeper.root_path`. +* Modify `batchjob.jar.path`: Set it to the BatchJob Jar file path. If left empty, the system will search in the upper-level lib directory. In Yarn mode, modify it to the corresponding HDFS path. +* Modify `offline.data.prefix`: Set it to the storage path for offline tables. In Yarn mode, modify it to the corresponding HDFS path. +* Modify `spark.master`: Set it according to the desired mode. Currently supports local and yarn modes for running offline tasks. +* Modify `spark.home`: Set it to the Spark environment path. If not configured, the `SPARK_HOME` environment variable will be used. It should be the directory where the spark-optimized package was extracted in the first step, and it must be an absolute path. ``` -server.host=0.0.0.0 +server.host=172.27.128.33 server.port=9902 -zookeeper.cluster=172.27.128.31:7181,172.27.128.32:7181,172.27.128.33:7181 +zookeeper.cluster=172.27.128.33:7181 zookeeper.root_path=/openmldb_cluster batchjob.jar.path= offline.data.prefix=file:///tmp/openmldb_offline_storage/ @@ -488,18 +648,68 @@ spark.master=local spark.home= ``` -#### 3. Start the Service +For more instructions on Spark related configurations, please refer to the [Spark Config Detail](./conf.md#spark-config-detail). -```bash +```{attention} +For distributed deployment clusters, avoid using local files from clients as source data imports. It is strongly recommended to use HDFS paths for this purpose. + +When spark.master=yarn, you must use HDFS paths. +When spark.master=local, if you must use a local file, you can copy the file to the host where TaskManager runs and provide the absolute path on the TaskManager host. + +For cases involving large amounts of offline data, it's also advisable to use HDFS for offline.data.prefix instead of local files. +``` + +**3. Start the service** + +``` bash bin/start.sh start taskmanager ``` -#### 4. Verify the Running Status of the Service +`ps f|grep taskmanager` should run normally, you can query the status of taskmanager process in `curl http://:/status `. + +```{note} +TaskManager logs include TaskManager process logs and job logs for each offline command. These logs are located in the /taskmanager/bin/logs path: +- taskmanager.log and taskmanager.out are the TaskManager process logs. Review these logs if the TaskManager process exits unexpectedly. +- job_x_error.log contains the log of each single job, while job_x.log contains the print log of a single job (results of asynchronous selects are printed here). In case of offline task failures, for example, for job 10, you can retrieve log information using command SHOW `JOBLOG 10`;. If your version does not support JOBLOG, locate the corresponding log job on the machine where the **TaskManager** is located. These logs are named job_10.log and job_10_error.log. +``` + +**4. Check if service is started** ```bash -$ ./bin/openmldb --zk_cluster=172.27.128.31:7181,172.27.128.32:7181,172.27.128.33:7181 --zk_root_path=/openmldb_cluster --role=sql_client -> show jobs; ----- ---------- ------- ------------ ---------- ------- ---- --------- ---------------- ------- - id job_type state start_time end_time parameter cluster application_id error ----- ---------- ------- ------------ ---------- ------- ---- --------- ---------------- ------- +$ ./bin/openmldb --zk_cluster=172.27.128.33:7181 --zk_root_path=/openmldb_cluster --role=sql_client +> show components; +``` + +The results should be similar to the following table, including all cluster components (except for APIServer). + +``` + ------------------- ------------ --------------- -------- --------- + Endpoint Role Connect_time Status Ns_role + ------------------- ------------ --------------- -------- --------- + 172.27.128.33:9527 tablet 1665568158749 online NULL + 172.27.128.33:9528 tablet 1665568158741 online NULL + 172.27.128.31:6527 nameserver 1665568159782 online master + 172.27.128.33:9902 taskmanager 1665649276766 online NULL + ------------------- ------------ --------------- -------- --------- +``` + +To test the normal functioning of the cluster in the SQL client, you can execute the following SQL commands to read and write simple tables (online only, for simplicity). + +``` +create database simple_test; +use simple_test; +create table t1(c1 int, c2 string); +set @@execute_mode='online'; +Insert into t1 values (1, 'a'),(2,'b'); +select * from t1; ``` + +### Deployed in offline synchronization tool (optional) + +DataCollector in the offline synchronization tool needs to be deployed on the same machine as the TabletServer. Therefore, if offline synchronization is required, DataCollector can be deployed in all TabletServer deployment directories. + +SyncTool requires a Java runtime environment and doesn't have any additional requirements. It is recommended to deploy it separately on a single machine. + +SyncTool Helper, a synchronization task management tool for SyncTool, can be found in `tools/synctool_helper.py`. It requires a Python3 runtime environment, no additional requirements, and can be used remotely. However, viewing the debugging information requires using SyncTool Helper on the machine where SyncTool is located. + +For detailed deployment instructions, refer to the [Offline Synchronization Tool](../tutorial/online_offline_sync.md). Pay close attention to the version conditions and functional boundaries of the offline synchronization tool. From c888eab1bea8d6d1137aa8e7acf6da37898b0433 Mon Sep 17 00:00:00 2001 From: tobe Date: Thu, 14 Sep 2023 14:09:29 +0800 Subject: [PATCH 048/111] feat: support load data for hive with sql option (#3380) --- .../integration/offline_data_sources/hive.md | 10 +++- .../openmldb/batch/nodes/LoadDataPlan.scala | 5 +- .../openmldb/batch/utils/HybridseUtil.scala | 58 ++++++++++++++----- 3 files changed, 55 insertions(+), 18 deletions(-) diff --git a/docs/zh/integration/offline_data_sources/hive.md b/docs/zh/integration/offline_data_sources/hive.md index ec317971990..286f14d9684 100644 --- a/docs/zh/integration/offline_data_sources/hive.md +++ b/docs/zh/integration/offline_data_sources/hive.md @@ -102,7 +102,7 @@ CREATE TABLE db1.t1 LIKE HIVE 'hive://hive_db.t1'; - 离线和在线引擎均可以导入 Hive 数据源 - Hive 导入支持软连接,可以减少硬拷贝并且保证 OpenMLDB 随时读取到 Hive 的最新数据。启用软链接方式进行数据导入:使用参数 `deep_copy=false` -- `OPTIONS` 参数仅有 `deep_copy` 和 `mode` 有效 +- `OPTIONS` 参数仅有 `deep_copy` 、`mode` 和 `sql` 有效 举例: @@ -110,6 +110,14 @@ CREATE TABLE db1.t1 LIKE HIVE 'hive://hive_db.t1'; LOAD DATA INFILE 'hive://db1.t1' INTO TABLE t1 OPTIONS(deep_copy=false); ``` +加载数据还支持使用 SQL 语句筛选 Hive 数据表特定数据,注意 SQL 必须符合 SparkSQL 语法,数据表为注册后的表名,不带 `hive://` 前缀。 + +举例: + +```sql +LOAD DATA INFILE 'hive://db1.t1' INTO TABLE db1.t1 OPTIONS(deep_copy=true, sql='SELECT * FROM db1.t1 where key=\"foo\"') +``` + ## 导出 OpenMLDB 数据到 Hive 对于 Hive 数据源的导出是通过 API [`SELECT INTO`](../../openmldb_sql/dql/SELECT_INTO_STATEMENT.md) 进行支持,通过使用特定的 URI 接口 `hive://[db].table` 的格式进行导出到 Hive 数仓。注意: diff --git a/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/nodes/LoadDataPlan.scala b/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/nodes/LoadDataPlan.scala index 36398d199cf..a04b46ab650 100644 --- a/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/nodes/LoadDataPlan.scala +++ b/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/nodes/LoadDataPlan.scala @@ -47,9 +47,12 @@ object LoadDataPlan { logger.info("table info: {}", info) require(info != null && info.getName.nonEmpty, s"table $db.$table info is not existed(no table name): $info") + val loadDataSql = extra.get("sql").get + // we read input file even in soft copy, // cause we want to check if "the input file schema == openmldb table schema" - val df = HybridseUtil.autoLoad(ctx.getOpenmldbSession, inputFile, format, options, info.getColumnDescList) + val df = HybridseUtil.autoLoad(ctx.getOpenmldbSession, inputFile, format, options, info.getColumnDescList, + loadDataSql) // write logger.info("write data to storage {}, writer[mode {}], is deep? {}", storage, mode, deepCopy.toString) diff --git a/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/utils/HybridseUtil.scala b/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/utils/HybridseUtil.scala index 4e0edd9b8a2..bdb9f30a727 100644 --- a/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/utils/HybridseUtil.scala +++ b/java/openmldb-batch/src/main/scala/com/_4paradigm/openmldb/batch/utils/HybridseUtil.scala @@ -233,6 +233,7 @@ object HybridseUtil { updateOptionsMap(options, getOptionFromNode(node, "null_value"), "nullValue", getStr) updateOptionsMap(options, getOptionFromNode(node, "quote"), "quote", getStr) } + // load data: write mode(load data may write to offline storage or online storage, needs mode too) // select into: write mode val modeStr = parseOption(getOptionFromNode(node, "mode"), "error_if_exists", getStringOrDefault).toLowerCase @@ -250,8 +251,9 @@ object HybridseUtil { // only for select into, "" means N/A extraOptions += ("coalesce" -> parseOption(getOptionFromNode(node, "coalesce"), "0", getIntOrDefault)) - + extraOptions += ("sql" -> parseOption(getOptionFromNode(node, "sql"), "", getStringOrDefault)) extraOptions += ("writer_type") -> parseOption(getOptionFromNode(node, "writer_type"), "single", getStringOrDefault) + (format, options.toMap, mode, extraOptions.toMap) } @@ -314,7 +316,12 @@ object HybridseUtil { def autoLoad(openmldbSession: OpenmldbSession, file: String, format: String, options: Map[String, String], columns: util.List[Common.ColumnDesc]): DataFrame = { - autoLoad(openmldbSession, file, List.empty[String], format, options, columns) + autoLoad(openmldbSession, file, List.empty[String], format, options, columns, "") + } + + def autoLoad(openmldbSession: OpenmldbSession, file: String, format: String, options: Map[String, String], + columns: util.List[Common.ColumnDesc], loadDataSql: String): DataFrame = { + autoLoad(openmldbSession, file, List.empty[String], format, options, columns, loadDataSql) } // Load df from file **and** symbol paths, they should in the same format and options. @@ -327,7 +334,8 @@ object HybridseUtil { // We use OpenmldbSession for running sparksql in hiveLoad. If in 4pd Spark distribution, SparkSession.sql // will do openmldbSql first, and if DISABLE_OPENMLDB_FALLBACK, we can't use sparksql. def autoLoad(openmldbSession: OpenmldbSession, file: String, symbolPaths: List[String], format: String, - options: Map[String, String], columns: util.List[Common.ColumnDesc]): DataFrame = { + options: Map[String, String], columns: util.List[Common.ColumnDesc], loadDataSql: String = "") + : DataFrame = { val fmt = format.toLowerCase if (fmt.equals("hive")) { logger.info(s"load data from hive table $file & $symbolPaths") @@ -335,16 +343,16 @@ object HybridseUtil { var outputDf: DataFrame = null symbolPaths.zipWithIndex.foreach { case (path, index) => if (index == 0) { - outputDf = HybridseUtil.hiveLoad(openmldbSession, path, columns); + outputDf = HybridseUtil.hiveLoad(openmldbSession, path, columns, loadDataSql) } else { - outputDf = outputDf.union(HybridseUtil.hiveLoad(openmldbSession, path, columns)) + outputDf = outputDf.union(HybridseUtil.hiveLoad(openmldbSession, path, columns, loadDataSql)) } } outputDf } else { - var outputDf = HybridseUtil.hiveLoad(openmldbSession, file, columns) + var outputDf = HybridseUtil.hiveLoad(openmldbSession, file, columns, loadDataSql) for (path: String <- symbolPaths) { - outputDf = outputDf.union(HybridseUtil.hiveLoad(openmldbSession, path, columns)) + outputDf = outputDf.union(HybridseUtil.hiveLoad(openmldbSession, path, columns, loadDataSql)) } outputDf } @@ -355,16 +363,18 @@ object HybridseUtil { var outputDf: DataFrame = null symbolPaths.zipWithIndex.foreach { case (path, index) => if (index == 0) { - outputDf = HybridseUtil.autoFileLoad(openmldbSession, path, fmt, options, columns); + outputDf = HybridseUtil.autoFileLoad(openmldbSession, path, fmt, options, columns, loadDataSql) } else { - outputDf = outputDf.union(HybridseUtil.autoFileLoad(openmldbSession, path, fmt, options, columns)) + outputDf = outputDf.union(HybridseUtil.autoFileLoad(openmldbSession, path, fmt, options, columns, + loadDataSql)) } } outputDf } else { - var outputDf = HybridseUtil.autoFileLoad(openmldbSession, file, fmt, options, columns) + var outputDf = HybridseUtil.autoFileLoad(openmldbSession, file, fmt, options, columns, loadDataSql) for (path: String <- symbolPaths) { - outputDf = outputDf.union(HybridseUtil.autoFileLoad(openmldbSession, path, fmt, options, columns)) + outputDf = outputDf.union(HybridseUtil.autoFileLoad(openmldbSession, path, fmt, options, columns, + loadDataSql)) } outputDf } @@ -376,7 +386,7 @@ object HybridseUtil { // 2. spark read may change the df schema to all nullable // So we should fix it. private def autoFileLoad(openmldbSession: OpenmldbSession, file: String, format: String, - options: Map[String, String], columns: util.List[Common.ColumnDesc]): DataFrame = { + options: Map[String, String], columns: util.List[Common.ColumnDesc], loadDataSql: String): DataFrame = { require(format.equals("csv") || format.equals("parquet")) val reader = openmldbSession.getSparkSession.read.options(options) @@ -384,7 +394,13 @@ object HybridseUtil { var df = if (format.equals("parquet")) { // When reading Parquet files, all columns are automatically converted to be nullable for compatibility reasons. // ref https://spark.apache.org/docs/3.2.1/sql-data-sources-parquet.html - val df = reader.format(format).load(file) + val df = if (loadDataSql != null && loadDataSql.nonEmpty) { + reader.format(format).load(file).createOrReplaceTempView("file") + openmldbSession.sparksql(loadDataSql) + } else { + reader.format(format).load(file) + } + require(checkSchemaIgnoreNullable(df.schema, oriSchema), s"schema mismatch(ignore nullable), loaded ${df.schema}!= table $oriSchema, check $file") // reset nullable property @@ -404,6 +420,11 @@ object HybridseUtil { } } + if (loadDataSql != null && loadDataSql.nonEmpty) { + df.createOrReplaceTempView("file") + df = openmldbSession.sparksql(loadDataSql) + } + if (logger.isDebugEnabled()) { logger.debug(s"read dataframe schema: ${df.schema}, count: ${df.count()}") df.show(10) @@ -430,14 +451,19 @@ object HybridseUtil { path.substring(tableStartPos) } - private def hiveLoad(openmldbSession: OpenmldbSession, file: String, columns: util.List[Common.ColumnDesc]): - DataFrame = { + private def hiveLoad(openmldbSession: OpenmldbSession, file: String, columns: util.List[Common.ColumnDesc], + loadDataSql: String = ""): DataFrame = { if (logger.isDebugEnabled()) { logger.debug("session catalog {}", openmldbSession.getSparkSession.sessionState.catalog) openmldbSession.sparksql("show tables").show() } // use sparksql to read hive, no need to try openmldbsql and then fallback to sparksql - val df = openmldbSession.sparksql(s"SELECT * FROM ${hiveDest(file)}") + val df = if (loadDataSql != null && loadDataSql.nonEmpty) { + logger.debug("Try to execute custom SQL for hive: " + loadDataSql) + openmldbSession.sparksql(loadDataSql) + } else { + openmldbSession.sparksql(s"SELECT * FROM ${hiveDest(file)}") + } if (logger.isDebugEnabled()) { logger.debug(s"read dataframe schema: ${df.schema}, count: ${df.count()}") df.show(10) From 07f686274a8b3174bdfb7e300c2e0b5429cfb34e Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Thu, 14 Sep 2023 16:45:00 +0800 Subject: [PATCH 049/111] fix(#3489): rm unnecessary logs (#3495) --- hybridse/src/vm/generator.cc | 3 --- hybridse/src/vm/runner.cc | 3 --- 2 files changed, 6 deletions(-) diff --git a/hybridse/src/vm/generator.cc b/hybridse/src/vm/generator.cc index a0fe03e3a31..2b437ca2602 100644 --- a/hybridse/src/vm/generator.cc +++ b/hybridse/src/vm/generator.cc @@ -282,17 +282,14 @@ Row JoinGenerator::RowLastJoinTable(const Row& left_row, table = right_sort_gen_.Sort(table, true); } if (!table) { - LOG(WARNING) << "Last Join right table is empty"; return Row(left_slices_, left_row, right_slices_, Row()); } auto right_iter = table->GetIterator(); if (!right_iter) { - LOG(WARNING) << "Last Join right table is empty"; return Row(left_slices_, left_row, right_slices_, Row()); } right_iter->SeekToFirst(); if (!right_iter->Valid()) { - LOG(WARNING) << "Last Join right table is empty"; return Row(left_slices_, left_row, right_slices_, Row()); } diff --git a/hybridse/src/vm/runner.cc b/hybridse/src/vm/runner.cc index 3e1ebc72805..28525b8face 100644 --- a/hybridse/src/vm/runner.cc +++ b/hybridse/src/vm/runner.cc @@ -1673,18 +1673,15 @@ const Row Runner::RowLastJoinTable(size_t left_slices, const Row& left_row, ConditionGenerator& cond_gen) { right_table = right_sort.Sort(right_table, true); if (!right_table) { - LOG(WARNING) << "Last Join right table is empty"; return Row(left_slices, left_row, right_slices, Row()); } auto right_iter = right_table->GetIterator(); if (!right_iter) { - DLOG(WARNING) << "Last Join right table is empty"; return Row(left_slices, left_row, right_slices, Row()); } right_iter->SeekToFirst(); if (!right_iter->Valid()) { - LOG(WARNING) << "Last Join right table is empty"; return Row(left_slices, left_row, right_slices, Row()); } From 330d171193b925c4fd63a6df75d51a14572d7ad0 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Thu, 14 Sep 2023 17:55:42 +0800 Subject: [PATCH 050/111] feat: support const project online (#3376) --- cases/query/const_query.yaml | 42 ++++++-------------- hybridse/include/case/sql_case.h | 8 ++-- hybridse/include/sdk/base.h | 2 +- hybridse/include/vm/physical_op.h | 2 +- hybridse/src/case/sql_case.cc | 53 +++++++++++++++---------- hybridse/src/case/sql_case_test.cc | 4 +- hybridse/src/plan/planner.cc | 7 +++- hybridse/src/testing/engine_test_base.h | 14 ++++++- hybridse/src/vm/runner.cc | 7 ++-- hybridse/src/vm/transform.cc | 9 +++-- src/cmd/sql_cmd_test.cc | 6 ++- src/sdk/sql_cluster_test.cc | 8 ++-- src/sdk/sql_request_row.h | 3 +- src/sdk/sql_sdk_base_test.cc | 44 +++++++++++--------- src/sdk/sql_sdk_test.cc | 8 ++-- src/sdk/sql_standalone_sdk_test.cc | 8 ++-- src/test/base_test.cc | 2 +- 17 files changed, 124 insertions(+), 103 deletions(-) diff --git a/cases/query/const_query.yaml b/cases/query/const_query.yaml index 304f0486073..38bbbeb5e47 100644 --- a/cases/query/const_query.yaml +++ b/cases/query/const_query.yaml @@ -14,10 +14,12 @@ debugs: [] version: 0.5.0 +# FIXME: support request procedure for const project +# requires GetTablet impl for non-table procedure cases: - id: 0 desc: select const number - mode: request-unsupport + mode: procedure-unsupport db: db1 sql: | select 1 as id, 2 as col1, 3.3 as col2; @@ -29,7 +31,7 @@ cases: - [1, 2, 3.3] - id: 1 desc: select str - mode: request-unsupport + mode: procedure-unsupport db: db1 sql: | select 1 as id, "hello_world" as col1; @@ -41,7 +43,7 @@ cases: - [1, "hello_world"] - id: 2 desc: const substr pos len - mode: request-unsupport + mode: procedure-unsupport db: db1 sql: | select 1 as id, substring("hello_world", 3, 6) as col1; @@ -53,7 +55,7 @@ cases: - [1, "llo_wo"] - id: 3 desc: const substr pos - mode: request-unsupport + mode: procedure-unsupport db: db1 sql: | select 1 as id, substring("hello_world", 3) as col1; @@ -65,7 +67,7 @@ cases: - [1, "llo_world"] - id: 4 desc: const concat 1 - mode: request-unsupport + mode: procedure-unsupport db: db1 sql: | select 1 as id, concat("hello", "world", "abc") as col1; @@ -76,13 +78,8 @@ cases: - [1, "helloworldabc"] - id: 5 desc: cast常量 using CAST operator - mode: request-unsupport + mode: procedure-unsupport db: db1 - inputs: - - columns: ["c1 int", "c2 string", "c5 bigint"] - indexs: ["index1:c1:c5"] - rows: - - [1, "2020-05-22 10:43:40", 1] sql: | select CAST (10 as int) as c1, CAST (10 as bigint) as c2, CAST (10 as float) as c3, CAST (10 as double) as c4, CAST (1590115460000 as timestamp) as c5, CAST ("2020-05-20" as date) as c6, CAST (10 as string) as c7; expect: @@ -91,13 +88,8 @@ cases: - [10, 10, 10.0, 10.0, 1590115460000, '2020-05-20', "10"] - id: 6 desc: cast NULL常量 using CAST operator - mode: request-unsupport + mode: procedure-unsupport db: db1 - inputs: - - columns: ["c1 int", "c2 string", "c5 bigint"] - indexs: ["index1:c1:c5"] - rows: - - [1, "2020-05-22 10:43:40", 1] sql: | select CAST (NULL as int) as c1, CAST (NULL as bigint) as c2, CAST (NULL as float) as c3, CAST (NULL as double) as c4, CAST (NULL as timestamp) as c5, CAST (NULL as date) as c6, CAST (NULL as string) as c7; expect: @@ -106,13 +98,8 @@ cases: - [NULL, NULL, NULL, NULL, NULL, NULL, NULL] - id: 7 desc: cast常量 using type() function - mode: request-unsupport + mode: procedure-unsupport db: db1 - inputs: - - columns: ["c1 int", "c2 string", "c5 bigint"] - indexs: ["index1:c1:c5"] - rows: - - [1, "2020-05-22 10:43:40", 1] sql: | select int(10) as c1, bigint(10) as c2, float(10) as c3, double(10) as c4, timestamp(1590115460000) as c5, date("2020-05-20") as c6, string(10) as c7; expect: @@ -121,13 +108,8 @@ cases: - [10, 10, 10.0, 10.0, 1590115460000, '2020-05-20', "10"] - id: 8 desc: cast NULL常量 using type(NULL) function - mode: request-unsupport + mode: procedure-unsupport db: db1 - inputs: - - columns: ["c1 int", "c2 string", "c5 bigint"] - indexs: ["index1:c1:c5"] - rows: - - [1, "2020-05-22 10:43:40", 1] sql: | select int(NULL) as c1, bigint(NULL) as c2, float(NULL) as c3, double(NULL) as c4, timestamp(NULL) as c5, date(NULL) as c6, string(NULL) as c7; expect: @@ -136,7 +118,7 @@ cases: - [NULL, NULL, NULL, NULL, NULL, NULL, NULL] - id: 9 desc: differnt const node type - mode: request-unsupport + mode: procedure-unsupport db: db1 sql: | select true c1, int16(3) c2, 13 c3, 10.0 c4, 'a string' c5, date(timestamp(1590115420000)) c6, timestamp(1590115420000) c7; diff --git a/hybridse/include/case/sql_case.h b/hybridse/include/case/sql_case.h index 0c7756da02c..7cc05bba1d5 100644 --- a/hybridse/include/case/sql_case.h +++ b/hybridse/include/case/sql_case.h @@ -205,10 +205,10 @@ class SqlCase { static std::string GenRand(const std::string& prefix) { return prefix + std::to_string(rand() % 10000000 + 1); // NOLINT } - absl::StatusOr BuildCreateSpSqlFromInput(int32_t input_idx, absl::string_view sql, - const std::set& common_idx); - absl::StatusOr BuildCreateSpSqlFromSchema(const type::TableDef& table, absl::string_view select_sql, - const std::set& common_idx); + absl::StatusOr BuildCreateSpSql(absl::string_view sql, const std::set& common_idx, + std::optional input_idx); + absl::StatusOr BuildCreateSpSql(absl::string_view select_sql, const std::set& common_idx, + std::optional table); friend std::ostream& operator<<(std::ostream& output, const SqlCase& thiz); static bool IS_PERF() { diff --git a/hybridse/include/sdk/base.h b/hybridse/include/sdk/base.h index fcf9adcb0d1..90d8ff75680 100644 --- a/hybridse/include/sdk/base.h +++ b/hybridse/include/sdk/base.h @@ -71,7 +71,7 @@ struct Status { cm.append("] "); cm.append(msg); return cm; - }; + } int code; // msg use prepend and append, it's better to use absl::Cord, but we may directly use msg diff --git a/hybridse/include/vm/physical_op.h b/hybridse/include/vm/physical_op.h index 1fa22650995..c884d0bb7e5 100644 --- a/hybridse/include/vm/physical_op.h +++ b/hybridse/include/vm/physical_op.h @@ -738,7 +738,7 @@ class PhysicalConstProjectNode : public PhysicalOpNode { fn_infos_.push_back(&project_.fn_info()); } virtual ~PhysicalConstProjectNode() {} - virtual void Print(std::ostream &output, const std::string &tab) const; + void Print(std::ostream &output, const std::string &tab) const override; static PhysicalConstProjectNode *CastFrom(PhysicalOpNode *node); const ColumnProjects &project() const { return project_; } diff --git a/hybridse/src/case/sql_case.cc b/hybridse/src/case/sql_case.cc index 3d16b213b5a..c98defb679b 100644 --- a/hybridse/src/case/sql_case.cc +++ b/hybridse/src/case/sql_case.cc @@ -751,6 +751,9 @@ const std::string SqlCase::case_name() const { } bool SqlCase::ExtractInputTableDef(type::TableDef& table, int32_t input_idx) const { + if (inputs_.size() <= input_idx) { + return false; + } return ExtractInputTableDef(inputs_[input_idx], table); } bool SqlCase::ExtractInputTableDef(const TableInfo& input, @@ -1639,35 +1642,41 @@ void InitCases(std::string yaml_path, std::vector& cases, // NOLINT const std::vector& filters) { SqlCase::CreateSqlCasesFromYaml(hybridse::sqlcase::FindSqlCaseBaseDirPath(), yaml_path, cases, filters); } -absl::StatusOr SqlCase::BuildCreateSpSqlFromInput(int32_t input_idx, - absl::string_view select_sql, - const std::set& common_idx) { - type::TableDef table; - if (!ExtractInputTableDef(table, input_idx)) { - return absl::FailedPreconditionError("Fail to extract table schema"); - } +absl::StatusOr SqlCase::BuildCreateSpSql(absl::string_view select_sql, const std::set& common_idx, + std::optional input_idx) { + if (input_idx.has_value()) { + type::TableDef table; + if (!ExtractInputTableDef(table, input_idx.value())) { + return absl::FailedPreconditionError("Fail to extract table schema"); + } - return BuildCreateSpSqlFromSchema(table, select_sql, common_idx); + return BuildCreateSpSql(select_sql, common_idx, &table); + } + std::optional tab = {}; + return BuildCreateSpSql(select_sql, common_idx, tab); } -absl::StatusOr SqlCase::BuildCreateSpSqlFromSchema(const type::TableDef& table, - absl::string_view select_sql, - const std::set& common_idx) { - auto sql_view = absl::StripAsciiWhitespace(select_sql); - std::string query_stmt(sql_view); - if (query_stmt.back() != ';') { +absl::StatusOr SqlCase::BuildCreateSpSql(absl::string_view select_sql, const std::set& common_idx, + std::optional tab) { + auto sql_view = absl::StripAsciiWhitespace(select_sql); + std::string query_stmt(sql_view); + if (query_stmt.back() != ';') { absl::StrAppend(&query_stmt, ";"); } std::string sql = absl::Substitute("CREATE PROCEDURE $0 (\n", sp_name_); - for (int i = 0; i < table.columns_size(); i++) { - auto column = table.columns(i); - if (!common_idx.empty() && common_idx.count(i)) { - absl::StrAppend(&sql, "const "); - } - absl::SubstituteAndAppend(&sql, "$0 $1", column.name(), TypeString(column.type())); - if (i < table.columns_size() - 1) { - absl::StrAppend(&sql, ",\n"); + if (tab.has_value()) { + auto table = tab.value(); + + for (int i = 0; i < table->columns_size(); i++) { + auto column = table->columns(i); + if (!common_idx.empty() && common_idx.count(i)) { + absl::StrAppend(&sql, "const "); + } + absl::SubstituteAndAppend(&sql, "$0 $1", column.name(), TypeString(column.type())); + if (i < table->columns_size() - 1) { + absl::StrAppend(&sql, ",\n"); + } } } absl::SubstituteAndAppend(&sql, ")\nBEGIN\n$0\nEND;", query_stmt); diff --git a/hybridse/src/case/sql_case_test.cc b/hybridse/src/case/sql_case_test.cc index 6cc980253ea..c6603544a3d 100644 --- a/hybridse/src/case/sql_case_test.cc +++ b/hybridse/src/case/sql_case_test.cc @@ -1168,7 +1168,7 @@ TEST_F(SqlCaseTest, BuildCreateSpSqlFromInputTest) { sql_case.sp_name_ = "sp"; std::string sql = " select c1, c2, c3, c4 from t1 "; std::string sp_sql = ""; - auto s = sql_case.BuildCreateSpSqlFromInput(0, sql, {}); + auto s = sql_case.BuildCreateSpSql(sql, {}, 0); ASSERT_TRUE(s.ok()) << s.status(); ASSERT_EQ(R"s(CREATE PROCEDURE sp ( c1 string, @@ -1190,7 +1190,7 @@ END;)s", sql_case.inputs_.push_back(input); std::string sql = "select c1, c2, c3, c4 from t1;"; std::string sp_sql = ""; - auto s = sql_case.BuildCreateSpSqlFromInput(0, sql, {0, 1, 3}); + auto s = sql_case.BuildCreateSpSql(sql, {0, 1, 3}, 0); ASSERT_TRUE(s.ok()) << s.status(); ASSERT_EQ(R"s(CREATE PROCEDURE sp1 ( const c1 string, diff --git a/hybridse/src/plan/planner.cc b/hybridse/src/plan/planner.cc index 3cef58a131f..c0a68e3104e 100644 --- a/hybridse/src/plan/planner.cc +++ b/hybridse/src/plan/planner.cc @@ -490,6 +490,7 @@ absl::StatusOr Planner::IsTable(node::PlanNode *node) { // - SELECT // - JOIN // - WINDOW +// - CONST PROJECT // - UnSupport Ops:: // - CREATE TABLE // - INSERT TABLE @@ -500,8 +501,10 @@ absl::StatusOr Planner::IsTable(node::PlanNode *node) { // - Not Impl // - Order By base::Status Planner::ValidateOnlineServingOp(node::PlanNode *node) { - CHECK_TRUE(nullptr != node, common::kNullInputPointer, - "Fail to validate request table: input node is null") + if (node == nullptr) { + // null is fine, e.g the const project + return {}; + } switch (node->type_) { case node::kPlanTypeProject: { auto project_node = dynamic_cast(node); diff --git a/hybridse/src/testing/engine_test_base.h b/hybridse/src/testing/engine_test_base.h index f9317201f00..e759169f0fd 100644 --- a/hybridse/src/testing/engine_test_base.h +++ b/hybridse/src/testing/engine_test_base.h @@ -271,6 +271,12 @@ class RequestEngineTestRunner : public EngineTestRunner { std::string request_db_name = request_session->GetRequestDbName(); CHECK_TRUE(parameter_rows_.empty(), common::kUnSupport, "Request do not support parameterized query currently") Row parameter = parameter_rows_.empty() ? Row() : parameter_rows_[0]; + if (request_rows_.empty()) { + // send empty request, trigger e.g const project in request mode + CHECK_TRUE(request_name.empty() && request_db_name.empty(), common::kUnsupportSql, + "no request data for request table: <", request_db_name, ".", request_name, ">") + request_rows_.push_back(Row()); + } for (auto in_row : request_rows_) { Row out_row; int run_ret = request_session->Run(in_row, &out_row); @@ -278,7 +284,7 @@ class RequestEngineTestRunner : public EngineTestRunner { return_code_ = ENGINE_TEST_RET_EXECUTION_ERROR; return Status(common::kRunError, "Run request session failed"); } - if (!has_batch_request) { + if (!has_batch_request && !request_name.empty()) { CHECK_TRUE(AddRowIntoTable(request_db_name, request_name, in_row), common::kTablePutFailed, "Fail add row into table ", request_db_name, ".", request_name); } @@ -423,6 +429,12 @@ class BatchRequestEngineTestRunner : public EngineTestRunner { offset += row_num; } } + + if (request_rows_.empty()) { + // batch request rows will empty for const projects + // workaround by add the one empty row + request_rows_.push_back(Row()); + } return Status::OK(); } diff --git a/hybridse/src/vm/runner.cc b/hybridse/src/vm/runner.cc index 28525b8face..a15a2626bf3 100644 --- a/hybridse/src/vm/runner.cc +++ b/hybridse/src/vm/runner.cc @@ -1074,11 +1074,10 @@ std::shared_ptr Runner::BatchRequestRun(RunnerContext& ctx) { return cached; } } - std::shared_ptr outputs = - std::make_shared(); + + std::shared_ptr outputs = std::make_shared(); std::vector> inputs(producers_.size()); - std::vector> batch_inputs( - producers_.size()); + std::vector> batch_inputs(producers_.size()); for (size_t idx = producers_.size(); idx > 0; idx--) { batch_inputs[idx - 1] = producers_[idx - 1]->BatchRequestRun(ctx); } diff --git a/hybridse/src/vm/transform.cc b/hybridse/src/vm/transform.cc index 0e89ccd9291..60549447e42 100644 --- a/hybridse/src/vm/transform.cc +++ b/hybridse/src/vm/transform.cc @@ -2300,7 +2300,9 @@ Status RequestModeTransformer::TransformProjectPlanOp( "Input node or output node is null"); PhysicalOpNode* depend = nullptr; - CHECK_STATUS(TransformPlanOp(node->GetChildren()[0], &depend)); + if (!node->GetChildren().empty() && nullptr != node->GetChildren()[0]) { + CHECK_STATUS(TransformPlanOp(node->GetChildren()[0], &depend)); + } CHECK_STATUS(CompleteProjectList(node, depend)); @@ -2468,8 +2470,6 @@ Status RequestModeTransformer::ValidateRequestTable( return Status::OK(); } case vm::kPhysicalOpConstProject: { - FAIL_STATUS(kPlanError, - "Non-support Const Project in request mode", in->GetTreeString()); break; } default: { @@ -2487,6 +2487,9 @@ Status RequestModeTransformer::TransformProjectOp( node::ProjectListNode* project_list, PhysicalOpNode* depend, bool append_input, PhysicalOpNode** output) { PhysicalOpNode* new_depend = depend; + if (nullptr == depend) { + return CreatePhysicalConstProjectNode(project_list, output); + } if (nullptr != project_list->GetW()) { CHECK_STATUS(TransformWindowOp(depend, project_list->GetW(), &new_depend)); } diff --git a/src/cmd/sql_cmd_test.cc b/src/cmd/sql_cmd_test.cc index bd66e6db4dc..1896ac7c674 100644 --- a/src/cmd/sql_cmd_test.cc +++ b/src/cmd/sql_cmd_test.cc @@ -3740,12 +3740,16 @@ struct DeploymentEnv { }); } + // A bacth request increase deployment cnt by 1 + // yet may greatly impact deploy response time, if the batch size is huge + // maybe it requires a revision void CallDeployProcedureBatch() { hybridse::sdk::Status status; std::shared_ptr rr = std::make_shared(); GetRequestRow(&rr, dp_name_); - auto common_column_indices = std::make_shared(rr->GetSchema()); + auto common_column_indices = std::make_shared(); auto row_batch = std::make_shared(rr->GetSchema(), common_column_indices); + ASSERT_TRUE(row_batch->AddRow(rr)); sr->CallSQLBatchRequestProcedure(db_, dp_name_, row_batch, &status); ASSERT_TRUE(status.IsOK()) << status.msg << "\n" << status.trace; } diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index f8cccac1832..359ac431573 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -1012,7 +1012,7 @@ TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkDistributeBatchRequestSinglePartitionT TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkDistributeBatchRequestProcedureTest) { auto sql_case = GetParam(); - if (!IsBatchRequestSupportMode(sql_case.mode())) { + if (!IsBatchRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -1030,7 +1030,7 @@ TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkDistributeBatchRequestProcedureTest) { TEST_P(SQLSDKQueryTest, SqlSdkDistributeRequestProcedureTest) { auto sql_case = GetParam(); LOG(INFO) << "ID: " << sql_case.id() << ", DESC: " << sql_case.desc(); - if (!IsRequestSupportMode(sql_case.mode())) { + if (!IsRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -1041,7 +1041,7 @@ TEST_P(SQLSDKQueryTest, SqlSdkDistributeRequestProcedureTest) { } TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkDistributeBatchRequestProcedureAsyncTest) { auto sql_case = GetParam(); - if (!IsRequestSupportMode(sql_case.mode())) { + if (!IsBatchRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -1059,7 +1059,7 @@ TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkDistributeBatchRequestProcedureAsyncTe TEST_P(SQLSDKQueryTest, SqlSdkDistributeRequestProcedureAsyncTest) { auto sql_case = GetParam(); LOG(INFO) << "ID: " << sql_case.id() << ", DESC: " << sql_case.desc(); - if (!IsRequestSupportMode(sql_case.mode())) { + if (!IsRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } diff --git a/src/sdk/sql_request_row.h b/src/sdk/sql_request_row.h index af16a43da65..e09160f58e4 100644 --- a/src/sdk/sql_request_row.h +++ b/src/sdk/sql_request_row.h @@ -119,6 +119,7 @@ class SQLRequestRowBatch { class ColumnIndicesSet { public: + ColumnIndicesSet() {} explicit ColumnIndicesSet(std::shared_ptr schema) : bound_(schema->GetColumnCnt()) {} bool Empty() const { return common_column_indices_.empty(); } @@ -127,7 +128,7 @@ class ColumnIndicesSet { private: friend class SQLRequestRowBatch; - size_t bound_; + size_t bound_ = 0; std::set common_column_indices_; }; diff --git a/src/sdk/sql_sdk_base_test.cc b/src/sdk/sql_sdk_base_test.cc index 5d715f37fc4..d66ecc8c75f 100644 --- a/src/sdk/sql_sdk_base_test.cc +++ b/src/sdk/sql_sdk_base_test.cc @@ -105,7 +105,7 @@ void SQLSDKTest::CreateProcedure(hybridse::sqlcase::SqlCase& sql_case, // NOLIN std::shared_ptr router, bool is_batch) { DLOG(INFO) << "Create Procedure BEGIN"; hybridse::sdk::Status status; - if (sql_case.inputs()[0].name_.empty()) { + if (!sql_case.inputs().empty() && sql_case.inputs()[0].name_.empty()) { sql_case.set_input_name( hybridse::sqlcase::SqlCase::GenRand("auto_t") + std::to_string(static_cast(time(NULL))), 0); } @@ -126,13 +126,16 @@ void SQLSDKTest::CreateProcedure(hybridse::sqlcase::SqlCase& sql_case, // NOLIN hybridse::type::TableDef batch_request_schema; ASSERT_TRUE(sql_case.ExtractTableDef(sql_case.batch_request().columns_, sql_case.batch_request().indexs_, batch_request_schema)); - auto s = sql_case.BuildCreateSpSqlFromSchema(batch_request_schema, sql, - sql_case.batch_request().common_column_indices_); + auto s = sql_case.BuildCreateSpSql(sql, sql_case.batch_request().common_column_indices_, &batch_request_schema); ASSERT_TRUE(s.ok()) << s.status(); create_sp = s.value(); } else { std::set common_idx; - auto s = sql_case.BuildCreateSpSqlFromInput(0, sql, common_idx); + std::optional idx = {}; + if (!sql_case.inputs().empty()) { + idx = 0; + } + auto s = sql_case.BuildCreateSpSql(sql, common_idx, idx); ASSERT_TRUE(s.ok()) << s.status(); create_sp = s.value(); } @@ -405,33 +408,38 @@ void SQLSDKQueryTest::RequestExecuteSQL(hybridse::sqlcase::SqlCase& sql_case, / hybridse::type::TableDef insert_table; std::vector insert_rows; std::vector inserts; - if (!has_batch_request) { - ASSERT_TRUE(sql_case.ExtractInputTableDef(insert_table, 0)); - ASSERT_TRUE(sql_case.ExtractInputData(insert_rows, 0)); - sql_case.BuildInsertSqlListFromInput(0, &inserts); + if (!sql_case.inputs().empty()) { + if (!has_batch_request) { + ASSERT_TRUE(sql_case.ExtractInputTableDef(insert_table, 0)); + ASSERT_TRUE(sql_case.ExtractInputData(insert_rows, 0)); + sql_case.BuildInsertSqlListFromInput(0, &inserts); + } else { + ASSERT_TRUE(sql_case.ExtractInputTableDef(sql_case.batch_request_, insert_table)); + ASSERT_TRUE(sql_case.ExtractInputData(sql_case.batch_request_, insert_rows)); + } + CheckSchema(insert_table.columns(), *(request_row->GetSchema().get())); + DLOG(INFO) << "Request Row:\n"; + PrintRows(insert_table.columns(), insert_rows); } else { - ASSERT_TRUE(sql_case.ExtractInputTableDef(sql_case.batch_request_, insert_table)); - ASSERT_TRUE(sql_case.ExtractInputData(sql_case.batch_request_, insert_rows)); + // prepare a empty row in case result check for const projects + insert_rows.push_back(hybridse::codec::Row()); } - CheckSchema(insert_table.columns(), *(request_row->GetSchema().get())); - LOG(INFO) << "Request Row:\n"; - PrintRows(insert_table.columns(), insert_rows); hybridse::codec::RowView row_view(insert_table.columns()); std::vector> results; - LOG(INFO) << "Request execute sql start!"; + DLOG(INFO) << "Request execute sql start!"; for (size_t i = 0; i < insert_rows.size(); i++) { row_view.Reset(insert_rows[i].buf()); CovertHybridSERowToRequestRow(&row_view, request_row); std::shared_ptr rs; if (is_procedure) { if (is_asyn) { - LOG(INFO) << "-------asyn procedure----------"; + DLOG(INFO) << "-------asyn procedure----------"; auto future = router->CallProcedure(sql_case.db(), sql_case.sp_name_, 1000, request_row, &status); if (!future || status.code != 0) FAIL() << "sql case expect success == true" << status.msg; rs = future->GetResultSet(&status); } else { - LOG(INFO) << "--------syn procedure----------"; + DLOG(INFO) << "--------syn procedure----------"; rs = router->CallProcedure(sql_case.db(), sql_case.sp_name_, request_row, &status); } } else { @@ -439,8 +447,8 @@ void SQLSDKQueryTest::RequestExecuteSQL(hybridse::sqlcase::SqlCase& sql_case, / } if (!rs || status.code != 0) FAIL() << "sql case expect success == true" << status.msg; results.push_back(rs); - if (!has_batch_request) { - LOG(INFO) << "insert request: \n" << inserts[i]; + if (!has_batch_request && !sql_case.inputs().empty()) { + DLOG(INFO) << "insert request: \n" << inserts[i]; bool ok = router->ExecuteInsert(insert_table.catalog(), inserts[i], &status); ASSERT_TRUE(ok); } diff --git a/src/sdk/sql_sdk_test.cc b/src/sdk/sql_sdk_test.cc index cbb6235ea4c..4b6a67de11f 100644 --- a/src/sdk/sql_sdk_test.cc +++ b/src/sdk/sql_sdk_test.cc @@ -141,7 +141,7 @@ TEST_P(SQLSDKQueryTest, SqlSdkBatchTest) { TEST_P(SQLSDKQueryTest, SqlSdkRequestProcedureTest) { auto sql_case = GetParam(); LOG(INFO) << "ID: " << sql_case.id() << ", DESC: " << sql_case.desc(); - if (!IsRequestSupportMode(sql_case.mode())) { + if (!IsRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -153,7 +153,7 @@ TEST_P(SQLSDKQueryTest, SqlSdkRequestProcedureTest) { TEST_P(SQLSDKQueryTest, SqlSdkRequestProcedureAsynTest) { auto sql_case = GetParam(); LOG(INFO) << "ID: " << sql_case.id() << ", DESC: " << sql_case.desc(); - if (!IsRequestSupportMode(sql_case.mode())) { + if (!IsRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -193,7 +193,7 @@ TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkBatchRequestTest) { } TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkBatchRequestProcedureTest) { auto sql_case = GetParam(); - if (!IsBatchRequestSupportMode(sql_case.mode())) { + if (!IsBatchRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -209,7 +209,7 @@ TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkBatchRequestProcedureTest) { TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkBatchRequestProcedureAsynTest) { auto sql_case = GetParam(); - if (!IsBatchRequestSupportMode(sql_case.mode())) { + if (!IsBatchRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } diff --git a/src/sdk/sql_standalone_sdk_test.cc b/src/sdk/sql_standalone_sdk_test.cc index ac24fd374df..e61cf1ea76c 100644 --- a/src/sdk/sql_standalone_sdk_test.cc +++ b/src/sdk/sql_standalone_sdk_test.cc @@ -127,7 +127,7 @@ TEST_P(SQLSDKQueryTest, SqlSdkBatchTest) { TEST_P(SQLSDKQueryTest, SqlSdkRequestProcedureTest) { auto sql_case = GetParam(); LOG(INFO) << "ID: " << sql_case.id() << ", DESC: " << sql_case.desc(); - if (!IsRequestSupportMode(sql_case.mode())) { + if (!IsRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -139,7 +139,7 @@ TEST_P(SQLSDKQueryTest, SqlSdkRequestProcedureTest) { TEST_P(SQLSDKQueryTest, SqlSdkRequestProcedureAsynTest) { auto sql_case = GetParam(); LOG(INFO) << "ID: " << sql_case.id() << ", DESC: " << sql_case.desc(); - if (!IsRequestSupportMode(sql_case.mode())) { + if (!IsRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -164,7 +164,7 @@ TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkBatchRequestTest) { } TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkBatchRequestProcedureTest) { auto sql_case = GetParam(); - if (!IsBatchRequestSupportMode(sql_case.mode())) { + if (!IsBatchRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } @@ -180,7 +180,7 @@ TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkBatchRequestProcedureTest) { TEST_P(SQLSDKBatchRequestQueryTest, SqlSdkBatchRequestProcedureAsynTest) { auto sql_case = GetParam(); - if (!IsBatchRequestSupportMode(sql_case.mode())) { + if (!IsBatchRequestSupportMode(sql_case.mode()) || "procedure-unsupport" == sql_case.mode()) { LOG(WARNING) << "Unsupport mode: " << sql_case.mode(); return; } diff --git a/src/test/base_test.cc b/src/test/base_test.cc index 26aa3a2713e..0e85ccfb396 100644 --- a/src/test/base_test.cc +++ b/src/test/base_test.cc @@ -215,7 +215,7 @@ void SQLCaseTest::PrintRows(const hybridse::vm::Schema &schema, const std::vecto } } oss << t << std::endl; - LOG(INFO) << "\n" << oss.str() << "\n"; + DLOG(INFO) << "\n" << oss.str() << "\n"; } const std::vector SQLCaseTest::SortRows(const hybridse::vm::Schema &schema, From 1792700a979dfc6505dfa234ad8c39180afc1c06 Mon Sep 17 00:00:00 2001 From: tobe Date: Fri, 15 Sep 2023 11:24:37 +0800 Subject: [PATCH 051/111] fix: refactor taskmanager config and support deleting HDFS files when dropping tables (#3369) --- .../taskmanager/config/TaskManagerConfig.java | 551 +++++++++++++----- .../taskmanager/dao/JobIdGenerator.java | 31 +- .../taskmanager/server/JobResultSaver.java | 6 +- .../taskmanager/server/TaskManagerServer.java | 17 +- .../server/impl/TaskManagerImpl.java | 22 +- .../udf/ExternalFunctionManager.java | 2 +- .../taskmanager/zk/FailoverWatcher.java | 12 +- .../src/main/resources/taskmanager.properties | 1 - .../openmldb/taskmanager/JobInfoManager.scala | 15 +- .../openmldb/taskmanager/LogManager.scala | 4 +- .../taskmanager/k8s/K8sJobManager.scala | 34 +- .../taskmanager/spark/SparkJobManager.scala | 70 +-- .../tracker/YarnJobTrackerThread.scala | 2 +- .../openmldb/taskmanager/util/HdfsUtil.scala | 49 ++ .../taskmanager/util/VersionUtil.scala | 2 +- .../taskmanager/yarn/YarnClientUtil.scala | 16 +- .../server/impl/TestTaskManagerImpl.scala | 16 +- release/sbin/start-taskmanagers.sh | 6 +- 18 files changed, 581 insertions(+), 275 deletions(-) create mode 100644 java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/util/HdfsUtil.scala diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java index 3be3bcf39ee..76642ff17d6 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java @@ -32,168 +32,396 @@ public class TaskManagerConfig { private static Logger logger = LoggerFactory.getLogger(TaskManagerConfig.class); - public static String HOST; - public static int PORT; - public static int WORKER_THREAD; - public static int IO_THREAD; - public static int CHANNEL_KEEP_ALIVE_TIME; - public static String ZK_CLUSTER; - public static String ZK_ROOT_PATH; - public static String ZK_TASKMANAGER_PATH; - public static String ZK_MAX_JOB_ID_PATH; - public static int ZK_SESSION_TIMEOUT; - public static int ZK_CONNECTION_TIMEOUT; - public static int ZK_BASE_SLEEP_TIME; - public static int ZK_MAX_CONNECT_WAIT_TIME; - public static int ZK_MAX_RETRIES; - public static String SPARK_MASTER; - public static String SPARK_YARN_JARS; - public static String SPARK_HOME; - public static int PREFETCH_JOBID_NUM; - public static String JOB_LOG_PATH; - public static String EXTERNAL_FUNCTION_DIR; - public static boolean TRACK_UNFINISHED_JOBS; - public static int JOB_TRACKER_INTERVAL; - public static String SPARK_DEFAULT_CONF; - public static String SPARK_EVENTLOG_DIR; - public static int SPARK_YARN_MAXAPPATTEMPTS; - public static String OFFLINE_DATA_PREFIX; - public static String NAMENODE_URI; - public static String BATCHJOB_JAR_PATH; - public static String HADOOP_CONF_DIR; - public static String HADOOP_USER_NAME; - public static boolean ENABLE_HIVE_SUPPORT; - public static long BATCH_JOB_RESULT_MAX_WAIT_TIME; - public static String K8S_HADOOP_CONFIGMAP_NAME; - public static String K8S_MOUNT_LOCAL_PATH; - - private static volatile boolean isParsed = false; + private volatile static TaskManagerConfig instance; + + private volatile static Properties props; + + public static Properties getProps() { + return props; + } + + private static TaskManagerConfig getInstance() throws ConfigException { + if (instance == null) { + instance = new TaskManagerConfig(); + instance.init(); + } + return instance; + } public static void parse() throws ConfigException { - if (!isParsed) { - doParse(); - isParsed = true; + getInstance(); + } + + protected static String getString(String key) { + return props.getProperty(key); + } + + protected static int getInt(String key) { + return Integer.parseInt(getString(key)); + } + + protected static long getLong(String key) { + return Long.parseLong(getString(key)); + } + + protected static boolean getBool(String key) { + return Boolean.parseBoolean(getString(key)); + } + + + public static String getServerHost() { + return getString("server.host"); + } + + public static int getServerPort() { + return getInt("server.port"); + } + + public static int getServerWorkerThreads() { + return getInt("server.worker_threads"); + } + + public static int getServerIoThreads() { + return getInt("server.io_threads"); + } + + public static int getChannelKeepAliveTime() { + return getInt("server.channel_keep_alive_time"); + } + + public static int getZkSessionTimeout() { + return getInt("zookeeper.session_timeout"); + } + + public static String getZkCluster() { + return getString("zookeeper.cluster"); + } + + public static String getZkRootPath() { + return getString("zookeeper.root_path"); + } + + public static int getZkConnectionTimeout() { + return getInt("zookeeper.connection_timeout"); + } + + public static int getZkBaseSleepTime() { + return getInt("zookeeper.base_sleep_time"); + } + + public static int getZkMaxRetries() { + return getInt("zookeeper.max_retries"); + } + + public static int getZkMaxConnectWaitTime() { + return getInt("zookeeper.max_connect_waitTime"); + } + + public static String getSparkMaster() { + return getString("spark.master"); + } + + public static String getSparkYarnJars() { + return getString("spark.yarn.jars"); + } + + public static String getSparkHome() { + return getString("spark.home"); + } + + public static int getPrefetchJobidNum() { + return getInt("prefetch.jobid.num"); + } + + public static String getJobLogPath() { + return getString("job.log.path"); + } + + public static String getExternalFunctionDir() { + return getString("external.function.dir"); + } + + public static boolean getTrackUnfinishedJobs() { + return getBool("track.unfinished.jobs"); + } + + public static int getJobTrackerInterval() { + return getInt("job.tracker.interval"); + } + + public static String getSparkDefaultConf() { + return getString("spark.default.conf"); + } + + public static String getSparkEventlogDir() { + return getString("spark.eventLog.dir"); + } + + public static int getSparkYarnMaxappattempts() { + return getInt("spark.yarn.maxAppAttempts"); + } + + public static String getOfflineDataPrefix() { + return getString("offline.data.prefix"); + } + + public static String getBatchjobJarPath() { + return getString("batchjob.jar.path"); + } + + + public static String getHadoopConfDir() { + return getString("hadoop.conf.dir"); + } + + public static boolean getEnableHiveSupport() { + return getBool("enable.hive.support"); + } + + public static long getBatchJobResultMaxWaitTime() { + return getLong("batch.job.result.max.wait.time"); + } + + + public static String getK8sHadoopConfigmapName() { + return getString("k8s.hadoop.configmap"); + } + + public static String getK8sMountLocalPath() { + return getString("k8s.mount.local.path"); + } + + public static String getHadoopUserName() { + return getString("hadoop.user.name"); + } + + public static String getZkTaskmanagerPath() { + return getZkRootPath() + "/taskmanager"; + } + + public static String getZkMaxJobIdPath() { + return getZkTaskmanagerPath() + "/max_job_id"; + } + + public static boolean isK8s() { + return getSparkMaster().equals("k8s") || getSparkMaster().equals("kubernetes"); + } + + public static boolean isYarnCluster() { + return getSparkMaster().equals("yarn") || getSparkMaster().equals("yarn-cluster"); + } + + public static boolean isYarn() { + return getSparkMaster().startsWith("yarn"); + } + + public static void print() throws ConfigException { + parse(); + + StringBuilder builder = new StringBuilder(); + + for (String key : props.stringPropertyNames()) { + String value = props.getProperty(key); + builder.append(key + " = " + value + "\n"); } + + logger.info("Final TaskManager config: \n" + builder.toString()); } - public static void doParse() throws ConfigException { - Properties prop = new Properties(); + private void init() throws ConfigException { + props = new Properties(); + + // Load local properties file try { - prop.load(TaskManagerConfig.class.getClassLoader().getResourceAsStream("taskmanager.properties")); + props.load(TaskManagerConfig.class.getClassLoader().getResourceAsStream("taskmanager.properties")); } catch (IOException e) { throw new ConfigException(String.format("Fail to load taskmanager.properties, message: ", e.getMessage())); } - HOST = prop.getProperty("server.host", "0.0.0.0"); - PORT = Integer.parseInt(prop.getProperty("server.port", "9902")); - if (PORT < 1 || PORT > 65535) { + // Get properties and check + if (props.getProperty("server.host") == null) { + props.setProperty("server.host", "0.0.0.0"); + } + + if (props.getProperty("server.port") == null) { + props.setProperty("server.port", "9902"); + } + + if (getServerPort() < 1 || getServerPort() > 65535) { throw new ConfigException("server.port", "invalid port, should be in range of 1 through 65535"); } - WORKER_THREAD = Integer.parseInt(prop.getProperty("server.worker_threads", "16")); - IO_THREAD = Integer.parseInt(prop.getProperty("server.io_threads", "4")); - // alive time seconds - CHANNEL_KEEP_ALIVE_TIME = Integer.parseInt(prop.getProperty("server.channel_keep_alive_time", "1800")); - ZK_SESSION_TIMEOUT = Integer.parseInt(prop.getProperty("zookeeper.session_timeout", "5000")); - ZK_CLUSTER = prop.getProperty("zookeeper.cluster", ""); - if (ZK_CLUSTER.isEmpty()) { + if (props.getProperty("server.worker_threads") == null) { + props.setProperty("server.worker_threads", "16"); + } + + if (getServerWorkerThreads() <= 0) { + throw new ConfigException("server.worker_threads", "should be larger than 0"); + } + + if (props.getProperty("server.io_threads") == null) { + props.setProperty("server.io_threads", "4"); + } + + if (getServerIoThreads() <= 0) { + throw new ConfigException("server.io_threads", "should be larger than 0"); + } + + if (props.getProperty("server.channel_keep_alive_time") == null) { + props.setProperty("server.channel_keep_alive_time", "1800"); + } + + if (getChannelKeepAliveTime() <= 0) { + throw new ConfigException("server.channel_keep_alive_time", "should be larger than 0"); + } + + if (props.getProperty("zookeeper.session_timeout") == null) { + props.setProperty("zookeeper.session_timeout", "5000"); + } + + if (getZkSessionTimeout() <= 0) { + throw new ConfigException("zookeeper.session_timeout", "should be larger than 0"); + } + + if (props.getProperty("zookeeper.cluster") == null) { + props.setProperty("", ""); + } + + if (getZkCluster().isEmpty()) { throw new ConfigException("zookeeper.cluster", "should not be empty"); } - ZK_ROOT_PATH = prop.getProperty("zookeeper.root_path", ""); - if (ZK_ROOT_PATH.isEmpty()) { - throw new ConfigException("zookeeper.root_path", "should not be empty"); + if (props.getProperty("zookeeper.connection_timeout") == null) { + props.setProperty("zookeeper.connection_timeout", "5000"); + } + + if (getZkConnectionTimeout() <= 0) { + throw new ConfigException("zookeeper.connection_timeout", "should be larger than 0"); + } + + if (props.getProperty("zookeeper.base_sleep_time") == null) { + props.setProperty("zookeeper.base_sleep_time", "1000"); + } + + if (getZkBaseSleepTime() <= 0) { + throw new ConfigException("zookeeper.base_sleep_time", "should be larger than 0"); + } + + if (props.getProperty("zookeeper.max_retries") == null) { + props.setProperty("zookeeper.max_retries", "10"); + } + + if (getZkMaxRetries() <= 0) { + throw new ConfigException("zookeeper.max_retries", "should be larger than 0"); } - ZK_TASKMANAGER_PATH = ZK_ROOT_PATH + "/taskmanager"; - ZK_MAX_JOB_ID_PATH = ZK_TASKMANAGER_PATH + "/max_job_id"; - ZK_CONNECTION_TIMEOUT = Integer.parseInt(prop.getProperty("zookeeper.connection_timeout", "5000")); - ZK_BASE_SLEEP_TIME = Integer.parseInt(prop.getProperty("zookeeper.base_sleep_time", "1000")); - ZK_MAX_RETRIES = Integer.parseInt(prop.getProperty("zookeeper.max_retries", "10")); - ZK_MAX_CONNECT_WAIT_TIME = Integer.parseInt(prop.getProperty("zookeeper.max_connect_waitTime", "30000")); + if (props.getProperty("zookeeper.max_connect_waitTime") == null) { + props.setProperty("zookeeper.max_connect_waitTime", "30000"); + } + + if (getZkMaxConnectWaitTime() <= 0) { + throw new ConfigException("zookeeper.max_connect_waitTime", "should be larger than 0"); + } - SPARK_MASTER = prop.getProperty("spark.master", "local[*]").toLowerCase(); - if (!SPARK_MASTER.startsWith("local")) { - if (!Arrays.asList("yarn", "yarn-cluster", "yarn-client", "k8s", "kubernetes").contains(SPARK_MASTER)) { + if (props.getProperty("spark.master") == null) { + props.setProperty("spark.master", "local[*]"); + } else { + props.setProperty("spark.master", props.getProperty("spark.master").toLowerCase()); + } + + if (!getSparkMaster().startsWith("local")) { + if (!Arrays.asList("yarn", "yarn-cluster", "yarn-client", "k8s", "kubernetes").contains(getSparkMaster())) { throw new ConfigException("spark.master", "should be local, yarn, yarn-cluster, yarn-client, k8s or kubernetes"); } } - boolean isLocal = SPARK_MASTER.startsWith("local"); - boolean isYarn = SPARK_MASTER.startsWith("yarn"); - boolean isYarnCluster = SPARK_MASTER.equals("yarn") || SPARK_MASTER.equals("yarn-cluster"); - SPARK_YARN_JARS = prop.getProperty("spark.yarn.jars", ""); - if (isLocal && !SPARK_YARN_JARS.isEmpty()) { - logger.warn("Ignore the config of spark.yarn.jars which is invalid for local mode"); + if (props.getProperty("spark.yarn.jars") == null) { + props.setProperty("spark.yarn.jars", ""); + } + + if (isYarn() && !getSparkYarnJars().isEmpty() && getSparkYarnJars().startsWith("file://")) { + throw new ConfigException("spark.yarn.jars", "should not use local filesystem for yarn mode"); } - if (isYarn) { - if (!SPARK_YARN_JARS.isEmpty() && SPARK_YARN_JARS.startsWith("file://")) { - throw new ConfigException("spark.yarn.jars", "should not use local filesystem for yarn mode"); + + + if (props.getProperty("spark.home", "").isEmpty()) { + if (System.getenv("SPARK_HOME") == null) { + throw new ConfigException("spark.home", "should set config 'spark.home' or environment variable 'SPARK_HOME'"); + } else { + logger.info("Use SPARK_HOME from environment variable: " + System.getenv("SPARK_HOME")); + props.setProperty("spark.home", System.getenv("SPARK_HOME")); } } - SPARK_HOME = firstNonEmpty(prop.getProperty("spark.home"), System.getenv("SPARK_HOME")); + String SPARK_HOME = firstNonEmpty(props.getProperty("spark.home"), System.getenv("SPARK_HOME")); // isEmpty checks null and empty - if(isEmpty(SPARK_HOME)) { + if (isEmpty(SPARK_HOME)) { throw new ConfigException("spark.home", "should set config 'spark.home' or environment variable 'SPARK_HOME'"); } + if (SPARK_HOME != null) { + props.setProperty("spark.home", SPARK_HOME); + } // TODO: Check if we can get spark-submit - PREFETCH_JOBID_NUM = Integer.parseInt(prop.getProperty("prefetch.jobid.num", "1")); - if (PREFETCH_JOBID_NUM < 1) { + if (props.getProperty("prefetch.jobid.num") == null) { + props.setProperty("prefetch.jobid.num", "1"); + } + + if (getPrefetchJobidNum() < 1) { throw new ConfigException("prefetch.jobid.num", "should be larger or equal to 1"); } - NAMENODE_URI = prop.getProperty("namenode.uri", ""); - if (!NAMENODE_URI.isEmpty()) { - logger.warn("Config of 'namenode.uri' will be deprecated later"); + if (props.getProperty("job.log.path") == null) { + props.setProperty("job.log.path", "../log/"); } - JOB_LOG_PATH = prop.getProperty("job.log.path", "../log/"); - if (JOB_LOG_PATH.isEmpty()) { - throw new ConfigException("job.log.path", "should not be null"); - } else { - if (JOB_LOG_PATH.startsWith("hdfs") || JOB_LOG_PATH.startsWith("s3")) { - throw new ConfigException("job.log.path", "only support local filesystem"); - } + if (getJobLogPath().startsWith("hdfs") || getJobLogPath().startsWith("s3")) { + throw new ConfigException("job.log.path", "only support local filesystem"); + } - File directory = new File(JOB_LOG_PATH); - if (!directory.exists()) { - logger.info("The log path does not exist, try to create directory: " + JOB_LOG_PATH); - boolean created = directory.mkdirs(); - if (created) { - throw new ConfigException("job.log.path", "fail to create log path"); - } + File jobLogDirectory = new File(getJobLogPath()); + if (!jobLogDirectory.exists()) { + logger.info("The log path does not exist, try to create directory: " + getJobLogPath()); + jobLogDirectory.mkdirs(); + if (!jobLogDirectory.exists()) { + throw new ConfigException("job.log.path", "fail to create log path: " + jobLogDirectory); } } - EXTERNAL_FUNCTION_DIR = prop.getProperty("external.function.dir", "./udf/"); - if (EXTERNAL_FUNCTION_DIR.isEmpty()) { - throw new ConfigException("external.function.dir", "should not be null"); - } else { - File directory = new File(EXTERNAL_FUNCTION_DIR); - if (!directory.exists()) { - logger.info("The external function dir does not exist, try to create directory: " - + EXTERNAL_FUNCTION_DIR); - boolean created = directory.mkdirs(); - if (created) { - logger.warn("Fail to create external function directory: " + EXTERNAL_FUNCTION_DIR); - } + if (props.getProperty("external.function.dir") == null) { + props.setProperty("external.function.dir", "./udf/"); + } + + File externalFunctionDir = new File(getExternalFunctionDir()); + if (!externalFunctionDir.exists()) { + logger.info("The external function dir does not exist, try to create directory: " + + getExternalFunctionDir()); + externalFunctionDir.mkdirs(); + if (!externalFunctionDir.exists()) { + throw new ConfigException("job.log.path", "fail to create external function path: " + externalFunctionDir); } } - TRACK_UNFINISHED_JOBS = Boolean.parseBoolean(prop.getProperty("track.unfinished.jobs", "true")); + if (props.getProperty("track.unfinished.jobs") == null) { + props.setProperty("track.unfinished.jobs", "true"); + } + + if (props.getProperty("job.tracker.interval") == null) { + props.setProperty("job.tracker.interval", "30"); + } + + if (getJobTrackerInterval() <= 0) { + throw new ConfigException("job.tracker.interval", "should be larger than 0"); + } - JOB_TRACKER_INTERVAL = Integer.parseInt(prop.getProperty("job.tracker.interval", "30")); - if (JOB_TRACKER_INTERVAL <= 0) { - throw new ConfigException("job.tracker.interval", "interval should be larger than 0"); + if (props.getProperty("spark.default.conf") == null) { + props.setProperty("spark.default.conf", ""); } - SPARK_DEFAULT_CONF = prop.getProperty("spark.default.conf", ""); - if (!SPARK_DEFAULT_CONF.isEmpty()) { - String[] defaultSparkConfs = TaskManagerConfig.SPARK_DEFAULT_CONF.split(";"); - for (String sparkConfMap: defaultSparkConfs) { + if (!getSparkDefaultConf().isEmpty()) { + String[] defaultSparkConfs = getSparkDefaultConf().split(";"); + for (String sparkConfMap : defaultSparkConfs) { if (!sparkConfMap.isEmpty()) { String[] kv = sparkConfMap.split("="); if (kv.length < 2) { @@ -205,64 +433,85 @@ public static void doParse() throws ConfigException { } } - SPARK_EVENTLOG_DIR = prop.getProperty("spark.eventLog.dir", ""); - if (!SPARK_EVENTLOG_DIR.isEmpty() && isYarn) { - // TODO: Check if we can use local filesystem with yarn-client mode - if (SPARK_EVENTLOG_DIR.startsWith("file://")) { + if (props.getProperty("spark.eventLog.dir") == null) { + props.setProperty("spark.eventLog.dir", ""); + } + + if (!getSparkEventlogDir().isEmpty() && isYarn()) { + if (getSparkEventlogDir().startsWith("file://")) { throw new ConfigException("spark.eventLog.dir", "should not use local filesystem for yarn mode"); } } - SPARK_YARN_MAXAPPATTEMPTS = Integer.parseInt(prop.getProperty("spark.yarn.maxAppAttempts", "1")); - if (SPARK_YARN_MAXAPPATTEMPTS < 1) { - throw new ConfigException("spark.yarn.maxAppAttempts", "should be larger or equal to 1"); + if (props.getProperty("spark.yarn.maxAppAttempts") == null) { + props.setProperty("spark.yarn.maxAppAttempts", "1"); } - OFFLINE_DATA_PREFIX = prop.getProperty("offline.data.prefix", "file:///tmp/openmldb_offline_storage/"); - if (OFFLINE_DATA_PREFIX.isEmpty()) { - throw new ConfigException("offline.data.prefix", "should not be null"); + if (getSparkYarnMaxappattempts() <= 0) { + throw new ConfigException("spark.yarn.maxAppAttempts", "should be larger than 0"); + } + + + if (props.getProperty("offline.data.prefix") == null) { + props.setProperty("offline.data.prefix", "file:///tmp/openmldb_offline_storage/"); + } + + if (getOfflineDataPrefix().isEmpty()) { + throw new ConfigException("offline.data.prefix", "should not be null"); } else { - if (isYarnCluster && OFFLINE_DATA_PREFIX.startsWith("file://") ) { - throw new ConfigException("offline.data.prefix", "should not use local filesystem for yarn mode"); + if (isYarn() || isK8s()) { + if (getOfflineDataPrefix().startsWith("file://")) { + throw new ConfigException("offline.data.prefix", "should not use local filesystem for yarn mode or k8s mode"); + } } } - BATCHJOB_JAR_PATH = prop.getProperty("batchjob.jar.path", ""); - if (BATCHJOB_JAR_PATH.isEmpty()) { - try { - BATCHJOB_JAR_PATH = BatchJobUtil.findLocalBatchJobJar(); - } catch (Exception e) { - throw new ConfigException("batchjob.jar.path", "config is null and fail to load default openmldb-batchjob jar"); + if (props.getProperty("batchjob.jar.path", "").isEmpty()) { + props.setProperty("batchjob.jar.path", BatchJobUtil.findLocalBatchJobJar()); + } + + if (isYarn() && getHadoopConfDir().isEmpty()) { + if (System.getenv("HADOOP_CONF_DIR") == null) { + throw new ConfigException("hadoop.conf.dir", "should set config 'hadoop.conf.dir' or environment variable 'HADOOP_CONF_DIR'"); + } else { + // TODO: Check if we can get core-site.xml + props.setProperty("hadoop.conf.dir", System.getenv("HADOOP_CONF_DIR")); } } // TODO(hw): need default root? - HADOOP_USER_NAME = firstNonEmpty(prop.getProperty("hadoop.user.name"), System.getenv("HADOOP_USER_NAME")); + String HADOOP_USER_NAME = firstNonEmpty(props.getProperty("hadoop.user.name"), System.getenv("HADOOP_USER_NAME")); + if (HADOOP_USER_NAME != null) { + props.setProperty("hadoop.user.name", HADOOP_USER_NAME); + } - HADOOP_CONF_DIR = firstNonEmpty(prop.getProperty("hadoop.conf.dir"), System.getenv("HADOOP_CONF_DIR")); - if (isYarn && isEmpty(HADOOP_CONF_DIR)) { + + String HADOOP_CONF_DIR = firstNonEmpty(props.getProperty("hadoop.conf.dir"), System.getenv("HADOOP_CONF_DIR")); + if (isYarn() && isEmpty(HADOOP_CONF_DIR)) { throw new ConfigException("hadoop.conf.dir", "should set config 'hadoop.conf.dir' or environment variable 'HADOOP_CONF_DIR'"); } - // TODO: Check if we can get core-site.xml + if (HADOOP_CONF_DIR != null) { + props.setProperty("hadoop.conf.dir", HADOOP_CONF_DIR); + } - ENABLE_HIVE_SUPPORT = Boolean.parseBoolean(prop.getProperty("enable.hive.support", "true")); - BATCH_JOB_RESULT_MAX_WAIT_TIME = Long.parseLong(prop.getProperty("batch.job.result.max.wait.time", "600000")); // 10min + if (props.getProperty("enable.hive.support") == null) { + props.setProperty("enable.hive.support", "true"); + } - K8S_HADOOP_CONFIGMAP_NAME = prop.getProperty("k8s.hadoop.configmap", "hadoop-config"); + if (props.getProperty("batch.job.result.max.wait.time") == null) { + props.setProperty("batch.job.result.max.wait.time", "600000"); + } - K8S_MOUNT_LOCAL_PATH = prop.getProperty("k8s.mount.local.path", "/tmp"); - } + if (props.getProperty("k8s.hadoop.configmap") == null) { + props.setProperty("k8s.hadoop.configmap", "hadoop-config"); + } - public static boolean isK8s() throws ConfigException { - parse(); - return SPARK_MASTER.equals("k8s") || SPARK_MASTER.equals("kubernetes"); + if (props.getProperty("k8s.mount.local.path") == null) { + props.setProperty("k8s.mount.local.path", "/tmp"); + } } - public static boolean isYarnCluster() throws ConfigException { - parse(); - return SPARK_MASTER.equals("yarn") || SPARK_MASTER.equals("yarn-cluster"); - } // ref org.apache.spark.launcher.CommandBuilderUtils public static String firstNonEmpty(String... strings) { @@ -273,7 +522,13 @@ public static String firstNonEmpty(String... strings) { } return null; } + + public static boolean isEmpty(String s) { return s == null || s.isEmpty(); } + + + } + diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/dao/JobIdGenerator.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/dao/JobIdGenerator.java index 2e7ba638703..e9cd0c5014f 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/dao/JobIdGenerator.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/dao/JobIdGenerator.java @@ -28,28 +28,29 @@ public class JobIdGenerator { static { try { zkClient = new ZKClient(ZKConfig.builder() - .cluster(TaskManagerConfig.ZK_CLUSTER) - .namespace(TaskManagerConfig.ZK_ROOT_PATH) - .sessionTimeout(TaskManagerConfig.ZK_SESSION_TIMEOUT) - .baseSleepTime(TaskManagerConfig.ZK_BASE_SLEEP_TIME) - .connectionTimeout(TaskManagerConfig.ZK_CONNECTION_TIMEOUT) - .maxConnectWaitTime(TaskManagerConfig.ZK_MAX_CONNECT_WAIT_TIME) - .maxRetries(TaskManagerConfig.ZK_MAX_RETRIES) + .cluster(TaskManagerConfig.getZkCluster()) + .namespace(TaskManagerConfig.getZkRootPath()) + .sessionTimeout(TaskManagerConfig.getZkSessionTimeout()) + .baseSleepTime(TaskManagerConfig.getZkBaseSleepTime()) + .connectionTimeout(TaskManagerConfig.getZkConnectionTimeout()) + .maxConnectWaitTime(TaskManagerConfig.getZkMaxConnectWaitTime()) + .maxRetries(TaskManagerConfig.getZkMaxRetries()) .build()); zkClient.connect(); + // Initialize zk nodes - zkClient.createNode(TaskManagerConfig.ZK_ROOT_PATH, "".getBytes()); - zkClient.createNode(TaskManagerConfig.ZK_TASKMANAGER_PATH, "".getBytes()); + zkClient.createNode(TaskManagerConfig.getZkRootPath(), "".getBytes()); + zkClient.createNode(TaskManagerConfig.getZkTaskmanagerPath(), "".getBytes()); int lastMaxJobId = 0; - if (zkClient.checkExists(TaskManagerConfig.ZK_MAX_JOB_ID_PATH)) { + if (zkClient.checkExists(TaskManagerConfig.getZkMaxJobIdPath())) { // Get last max job id from zk - lastMaxJobId = Integer.parseInt(zkClient.getNodeValue(TaskManagerConfig.ZK_MAX_JOB_ID_PATH)); + lastMaxJobId = Integer.parseInt(zkClient.getNodeValue(TaskManagerConfig.getZkMaxJobIdPath())); } currentJobId = lastMaxJobId; - maxJobId = lastMaxJobId + TaskManagerConfig.PREFETCH_JOBID_NUM; + maxJobId = lastMaxJobId + TaskManagerConfig.getPrefetchJobidNum(); // set max job id in zk - zkClient.setNodeValue(TaskManagerConfig.ZK_MAX_JOB_ID_PATH, String.valueOf(maxJobId).getBytes()); + zkClient.setNodeValue(TaskManagerConfig.getZkMaxJobIdPath(), String.valueOf(maxJobId).getBytes()); } catch (Exception e) { zkClient = null; @@ -67,8 +68,8 @@ public static int getUniqueId() throws Exception { currentJobId += 1; if (currentJobId > maxJobId) { // Update zk before returning job id - maxJobId += TaskManagerConfig.PREFETCH_JOBID_NUM; - zkClient.setNodeValue(TaskManagerConfig.ZK_MAX_JOB_ID_PATH, String.valueOf(maxJobId).getBytes()); + maxJobId += TaskManagerConfig.getPrefetchJobidNum(); + zkClient.setNodeValue(TaskManagerConfig.getZkMaxJobIdPath(), String.valueOf(maxJobId).getBytes()); } return currentJobId; } diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/JobResultSaver.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/JobResultSaver.java index 6f6c77482e5..6bb1f310b2f 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/JobResultSaver.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/JobResultSaver.java @@ -105,7 +105,7 @@ public boolean saveFile(int resultId, String jsonData) { return true; } // save to /tmp_result// - String savePath = String.format("%s/tmp_result/%d", TaskManagerConfig.JOB_LOG_PATH, resultId); + String savePath = String.format("%s/tmp_result/%d", TaskManagerConfig.getJobLogPath(), resultId); synchronized (this) { File saveP = new File(savePath); if (!saveP.exists()) { @@ -151,7 +151,7 @@ public String readResult(int resultId, long timeoutMs) throws InterruptedExcepti } String output = ""; // all finished, read csv from savePath - String savePath = String.format("%s/tmp_result/%d", TaskManagerConfig.JOB_LOG_PATH, resultId); + String savePath = String.format("%s/tmp_result/%d", TaskManagerConfig.getJobLogPath(), resultId); File saveP = new File(savePath); // If saveP not exists, means no real result saved. But it may use a uncleaned // path, whether read result succeed or not, we should delete it. @@ -225,7 +225,7 @@ public void reset() throws IOException { synchronized (idStatus) { Collections.fill(idStatus, 0); } - String tmpResultDir = String.format("%s/tmp_result", TaskManagerConfig.JOB_LOG_PATH); + String tmpResultDir = String.format("%s/tmp_result", TaskManagerConfig.getJobLogPath()); // delete anyway FileUtils.forceDelete(new File(tmpResultDir)); } diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/TaskManagerServer.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/TaskManagerServer.java index 376ea41eee6..0a75c2e37b2 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/TaskManagerServer.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/TaskManagerServer.java @@ -18,7 +18,6 @@ import com._4paradigm.openmldb.taskmanager.config.ConfigException; import com._4paradigm.openmldb.taskmanager.tracker.JobTrackerService; -import com._4paradigm.openmldb.taskmanager.util.VersionUtil; import com._4paradigm.openmldb.taskmanager.zk.FailoverWatcher; import lombok.extern.slf4j.Slf4j; import com._4paradigm.openmldb.taskmanager.config.TaskManagerConfig; @@ -45,7 +44,7 @@ public class TaskManagerServer { * @throws ConfigException if config file does not exist or some configs are incorrect. */ public TaskManagerServer() throws ConfigException { - TaskManagerConfig.parse(); + TaskManagerConfig.print(); } /** @@ -69,7 +68,7 @@ public void start(Boolean blocking) throws ConfigException, IOException, Interru logger.info("The server runs and prepares for leader election"); if (failoverWatcher.blockUntilActive()) { logger.info("The server becomes active master and prepare to do business logic"); - if (TaskManagerConfig.TRACK_UNFINISHED_JOBS) { + if (TaskManagerConfig.getTrackUnfinishedJobs()) { // Start threads to track unfinished jobs JobTrackerService.startTrackerThreads(); } @@ -97,14 +96,14 @@ public void startRpcServer(Boolean blocking) throws ConfigException, Interrupted RpcServerOptions options = new RpcServerOptions(); options.setReceiveBufferSize(64 * 1024 * 1024); options.setSendBufferSize(64 * 1024 * 1024); - options.setIoThreadNum(TaskManagerConfig.IO_THREAD); - options.setWorkThreadNum(TaskManagerConfig.WORKER_THREAD); - options.setKeepAliveTime(TaskManagerConfig.CHANNEL_KEEP_ALIVE_TIME); - rpcServer = new RpcServer(TaskManagerConfig.PORT, options); + options.setIoThreadNum(TaskManagerConfig.getServerIoThreads()); + options.setWorkThreadNum(TaskManagerConfig.getServerWorkerThreads()); + options.setKeepAliveTime(TaskManagerConfig.getChannelKeepAliveTime()); + rpcServer = new RpcServer(TaskManagerConfig.getServerPort(), options); rpcServer.registerService(new TaskManagerImpl()); rpcServer.start(); - log.info("Start TaskManager on {} with worker thread number {}", TaskManagerConfig.PORT, - TaskManagerConfig.WORKER_THREAD); + log.info("Start TaskManager on {} with worker thread number {}", TaskManagerConfig.getServerPort(), + TaskManagerConfig.getServerWorkerThreads()); if (blocking) { // make server keep running diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/impl/TaskManagerImpl.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/impl/TaskManagerImpl.java index 3a06b96b2c2..6fd43d4200c 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/impl/TaskManagerImpl.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/impl/TaskManagerImpl.java @@ -73,17 +73,17 @@ public TaskManagerImpl() throws InterruptedException, ConfigException { */ private void initExternalFunction() throws InterruptedException { ZKClient zkClient = new ZKClient(ZKConfig.builder() - .cluster(TaskManagerConfig.ZK_CLUSTER) - .namespace(TaskManagerConfig.ZK_ROOT_PATH) - .sessionTimeout(TaskManagerConfig.ZK_SESSION_TIMEOUT) - .baseSleepTime(TaskManagerConfig.ZK_BASE_SLEEP_TIME) - .connectionTimeout(TaskManagerConfig.ZK_CONNECTION_TIMEOUT) - .maxConnectWaitTime(TaskManagerConfig.ZK_MAX_CONNECT_WAIT_TIME) - .maxRetries(TaskManagerConfig.ZK_MAX_RETRIES) + .cluster(TaskManagerConfig.getZkCluster()) + .namespace(TaskManagerConfig.getZkRootPath()) + .sessionTimeout(TaskManagerConfig.getZkSessionTimeout()) + .baseSleepTime(TaskManagerConfig.getZkBaseSleepTime()) + .connectionTimeout(TaskManagerConfig.getZkConnectionTimeout()) + .maxConnectWaitTime(TaskManagerConfig.getZkMaxConnectWaitTime()) + .maxRetries(TaskManagerConfig.getZkMaxRetries()) .build()); zkClient.connect(); - String funPath = TaskManagerConfig.ZK_ROOT_PATH + "/data/function"; + String funPath = TaskManagerConfig.getZkRootPath() + "/data/function"; try { List funNames = zkClient.getChildren(funPath); for (String name : funNames) { @@ -220,7 +220,7 @@ public TaskManager.RunBatchSqlResponse RunBatchSql(TaskManager.RunBatchSqlReques // HOST can't be 0.0.0.0 if distributed or spark is not local confMap.put("spark.openmldb.savejobresult.http", String.format("http://%s:%d/openmldb.taskmanager.TaskManagerServer/SaveJobResult", - TaskManagerConfig.HOST, TaskManagerConfig.PORT)); + TaskManagerConfig.getServerHost(), TaskManagerConfig.getServerPort())); // we can't get spark job id here, so we use JobResultSaver id, != spark job id // if too much running jobs to save result, throw exception int resultId = jobResultSaver.genResultId(); @@ -234,7 +234,7 @@ public TaskManager.RunBatchSqlResponse RunBatchSql(TaskManager.RunBatchSqlReques if (finalJobInfo.isSuccess()) { // wait for all files of result saved and read them, large timeout // TODO: Test for K8S backend - String output = jobResultSaver.readResult(resultId, TaskManagerConfig.BATCH_JOB_RESULT_MAX_WAIT_TIME); + String output = jobResultSaver.readResult(resultId, TaskManagerConfig.getBatchJobResultMaxWaitTime()); return TaskManager.RunBatchSqlResponse.newBuilder().setCode(StatusCode.SUCCESS).setOutput(output) .build(); } else { @@ -253,7 +253,7 @@ public TaskManager.RunBatchSqlResponse RunBatchSql(TaskManager.RunBatchSqlReques // rpc max time is CHANNEL_KEEP_ALIVE_TIME, so we don't need to wait too long private JobInfo busyWaitJobInfo(int jobId, int waitSeconds) throws InterruptedException { long maxWaitEnd = System.currentTimeMillis() - + (waitSeconds == 0 ? TaskManagerConfig.CHANNEL_KEEP_ALIVE_TIME : waitSeconds) * 1000; + + (waitSeconds == 0 ? TaskManagerConfig.getChannelKeepAliveTime() : waitSeconds) * 1000; while (System.currentTimeMillis() < maxWaitEnd) { Option info = JobInfoManager.getJob(jobId); if (info.isEmpty()) { diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/udf/ExternalFunctionManager.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/udf/ExternalFunctionManager.java index 00bc94e9fb4..2ee03a8742a 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/udf/ExternalFunctionManager.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/udf/ExternalFunctionManager.java @@ -32,7 +32,7 @@ public class ExternalFunctionManager { static private Map nameFileMap = new ConcurrentHashMap<>(); static public String getLibraryFilePath(String libraryFileName) { - return Paths.get(TaskManagerConfig.EXTERNAL_FUNCTION_DIR, libraryFileName).toString(); + return Paths.get(TaskManagerConfig.getExternalFunctionDir(), libraryFileName).toString(); } static public void addFunction(String fnName, String libraryFileName) throws Exception { diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/zk/FailoverWatcher.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/zk/FailoverWatcher.java index e2e9d8560d9..69c7689bd45 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/zk/FailoverWatcher.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/zk/FailoverWatcher.java @@ -51,13 +51,13 @@ public class FailoverWatcher implements Watcher { */ public FailoverWatcher() throws IOException { - baseZnode = TaskManagerConfig.ZK_ROOT_PATH + "/taskmanager"; + baseZnode = TaskManagerConfig.getZkRootPath() + "/taskmanager"; masterZnode = baseZnode + "/leader"; - zkQuorum = TaskManagerConfig.ZK_CLUSTER; - sessionTimeout = TaskManagerConfig.ZK_SESSION_TIMEOUT; + zkQuorum = TaskManagerConfig.getZkCluster(); + sessionTimeout = TaskManagerConfig.getZkSessionTimeout(); connectRetryTimes = 3; - String serverHost = TaskManagerConfig.HOST; - int serverPort = TaskManagerConfig.PORT; + String serverHost = TaskManagerConfig.getServerHost(); + int serverPort = TaskManagerConfig.getServerPort(); hostPort = new HostPort(serverHost, serverPort); connectZooKeeper(); @@ -91,7 +91,7 @@ protected void connectZooKeeper() throws IOException { */ protected void initZnode() { try { - ZooKeeperUtil.createAndFailSilent(this, TaskManagerConfig.ZK_ROOT_PATH); + ZooKeeperUtil.createAndFailSilent(this, TaskManagerConfig.getZkRootPath()); ZooKeeperUtil.createAndFailSilent(this, baseZnode); } catch (Exception e) { LOG.fatal("Error to create znode " + baseZnode diff --git a/java/openmldb-taskmanager/src/main/resources/taskmanager.properties b/java/openmldb-taskmanager/src/main/resources/taskmanager.properties index ce13bd8be10..e3c41a4b5f8 100644 --- a/java/openmldb-taskmanager/src/main/resources/taskmanager.properties +++ b/java/openmldb-taskmanager/src/main/resources/taskmanager.properties @@ -27,6 +27,5 @@ spark.default.conf= spark.eventLog.dir= spark.yarn.maxAppAttempts=1 batchjob.jar.path= -namenode.uri= offline.data.prefix=file:///tmp/openmldb_offline_storage/ hadoop.conf.dir= diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/JobInfoManager.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/JobInfoManager.scala index e16bed38cc3..10f958d4472 100644 --- a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/JobInfoManager.scala +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/JobInfoManager.scala @@ -20,6 +20,7 @@ import com._4paradigm.openmldb.sdk.SdkOption import com._4paradigm.openmldb.sdk.impl.SqlClusterExecutor import com._4paradigm.openmldb.taskmanager.config.TaskManagerConfig import com._4paradigm.openmldb.taskmanager.dao.{JobIdGenerator, JobInfo} +import com._4paradigm.openmldb.taskmanager.util.HdfsUtil import com._4paradigm.openmldb.taskmanager.yarn.YarnClientUtil import org.slf4j.LoggerFactory import org.apache.hadoop.fs.{FileSystem, LocalFileSystem, Path} @@ -42,8 +43,8 @@ object JobInfoManager { private val JOB_INFO_TABLE_NAME = "JOB_INFO" private val option = new SdkOption - option.setZkCluster(TaskManagerConfig.ZK_CLUSTER) - option.setZkPath(TaskManagerConfig.ZK_ROOT_PATH) + option.setZkCluster(TaskManagerConfig.getZkCluster) + option.setZkPath(TaskManagerConfig.getZkRootPath) val sqlExecutor = new SqlClusterExecutor(option) sqlExecutor.executeSQL("", "set @@execute_mode='online';") @@ -52,7 +53,7 @@ object JobInfoManager { val startTime = new java.sql.Timestamp(Calendar.getInstance.getTime().getTime()) val initialState = "Submitted" val parameter = if (args != null && args.length>0) args.mkString(",") else "" - val cluster = sparkConf.getOrElse("spark.master", TaskManagerConfig.SPARK_MASTER) + val cluster = sparkConf.getOrElse("spark.master", TaskManagerConfig.getSparkMaster) // TODO: Parse if run in yarn or local val jobInfo = new JobInfo(jobId, jobType, initialState, startTime, null, parameter, cluster, "", "") @@ -210,12 +211,8 @@ object JobInfoManager { FileUtils.deleteDirectory(dir) } else if (filePath.startsWith("hdfs://")) { - val conf = new Configuration(); - // TODO: Get namenode uri from config file - val namenodeUri = TaskManagerConfig.NAMENODE_URI - val hdfs = FileSystem.get(URI.create(s"hdfs://$namenodeUri"), conf) - hdfs.delete(new Path(filePath), true) - + logger.info(s"Try to delete the HDFS path ${filePath}") + HdfsUtil.deleteHdfsDir(filePath) } else { throw new Exception(s"Get unsupported file path: $filePath") } diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/LogManager.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/LogManager.scala index a700f69145c..2e8fcc7a330 100644 --- a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/LogManager.scala +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/LogManager.scala @@ -26,11 +26,11 @@ object LogManager { private val logger = LoggerFactory.getLogger(this.getClass) def getJobLogFile(id: Int): File = { - Paths.get(TaskManagerConfig.JOB_LOG_PATH, s"job_${id}.log").toFile + Paths.get(TaskManagerConfig.getJobLogPath, s"job_${id}.log").toFile } def getJobErrorLogFile(id: Int): File = { - Paths.get(TaskManagerConfig.JOB_LOG_PATH, s"job_${id}_error.log").toFile + Paths.get(TaskManagerConfig.getJobLogPath, s"job_${id}_error.log").toFile } def getFileContent(inputFile: File): String = { diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/k8s/K8sJobManager.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/k8s/K8sJobManager.scala index 2393a3833a3..b9985a263b0 100644 --- a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/k8s/K8sJobManager.scala +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/k8s/K8sJobManager.scala @@ -56,7 +56,7 @@ object K8sJobManager { val finalSparkConf: mutable.Map[String, String] = mutable.Map(sparkConf.toSeq: _*) - val defaultSparkConfs = TaskManagerConfig.SPARK_DEFAULT_CONF.split(";") + val defaultSparkConfs = TaskManagerConfig.getSparkDefaultConf.split(";") defaultSparkConfs.map(sparkConf => { if (sparkConf.nonEmpty) { val kvList = sparkConf.split("=") @@ -66,36 +66,36 @@ object K8sJobManager { } }) - if (TaskManagerConfig.SPARK_EVENTLOG_DIR.nonEmpty) { + if (TaskManagerConfig.getSparkEventlogDir.nonEmpty) { finalSparkConf.put("spark.eventLog.enabled", "true") - finalSparkConf.put("spark.eventLog.dir", TaskManagerConfig.SPARK_EVENTLOG_DIR) + finalSparkConf.put("spark.eventLog.dir", TaskManagerConfig.getSparkEventlogDir) } // Set ZooKeeper config for openmldb-batch jobs - if (TaskManagerConfig.ZK_CLUSTER.nonEmpty && TaskManagerConfig.ZK_ROOT_PATH.nonEmpty) { - finalSparkConf.put("spark.openmldb.zk.cluster", TaskManagerConfig.ZK_CLUSTER) - finalSparkConf.put("spark.openmldb.zk.root.path", TaskManagerConfig.ZK_ROOT_PATH) + if (TaskManagerConfig.getZkCluster.nonEmpty && TaskManagerConfig.getZkRootPath.nonEmpty) { + finalSparkConf.put("spark.openmldb.zk.cluster", TaskManagerConfig.getZkCluster) + finalSparkConf.put("spark.openmldb.zk.root.path", TaskManagerConfig.getZkRootPath) } if (defaultDb.nonEmpty) { finalSparkConf.put("spark.openmldb.default.db", defaultDb) } - if (TaskManagerConfig.OFFLINE_DATA_PREFIX.nonEmpty) { - finalSparkConf.put("spark.openmldb.offline.data.prefix", TaskManagerConfig.OFFLINE_DATA_PREFIX) + if (TaskManagerConfig.getOfflineDataPrefix.nonEmpty) { + finalSparkConf.put("spark.openmldb.offline.data.prefix", TaskManagerConfig.getOfflineDataPrefix) } // Set external function dir for offline jobs - val absoluteExternalFunctionDir = if (TaskManagerConfig.EXTERNAL_FUNCTION_DIR.startsWith("/")) { - TaskManagerConfig.EXTERNAL_FUNCTION_DIR + val absoluteExternalFunctionDir = if (TaskManagerConfig.getExternalFunctionDir.startsWith("/")) { + TaskManagerConfig.getExternalFunctionDir } else { // TODO: The current path is incorrect if running in IDE, please set `external.function.dir` with absolute path // Concat to generate absolute path - Paths.get(Paths.get(".").toAbsolutePath.toString, TaskManagerConfig.EXTERNAL_FUNCTION_DIR).toString + Paths.get(Paths.get(".").toAbsolutePath.toString, TaskManagerConfig.getExternalFunctionDir).toString } finalSparkConf.put("spark.openmldb.taskmanager.external.function.dir", absoluteExternalFunctionDir) - if(TaskManagerConfig.ENABLE_HIVE_SUPPORT) { + if(TaskManagerConfig.getEnableHiveSupport) { finalSparkConf.put("spark.sql.catalogImplementation", "hive") } @@ -107,7 +107,7 @@ object K8sJobManager { mainJarFile = "local:///opt/spark/jars/openmldb-batchjob-0.7.2-SNAPSHOT.jar", arguments = args, sparkConf = finalSparkConf.toMap, - mountLocalPath = TaskManagerConfig.K8S_MOUNT_LOCAL_PATH + mountLocalPath = TaskManagerConfig.getK8sMountLocalPath ) manager.submitJob(jobConfig) @@ -170,7 +170,7 @@ class K8sJobManager(val namespace:String = "default", | type: Never | env: | - name: SPARK_USER - | value: ${TaskManagerConfig.HADOOP_USER_NAME} + | value: ${TaskManagerConfig.getHadoopUserName} | volumes: | - name: host-local | hostPath: @@ -178,7 +178,7 @@ class K8sJobManager(val namespace:String = "default", | type: Directory | - name: hadoop-config | configMap: - | name: ${TaskManagerConfig.K8S_HADOOP_CONFIGMAP_NAME} + | name: ${TaskManagerConfig.getK8sHadoopConfigmapName} | driver: | cores: ${jobConfig.driverCores} | memory: "${jobConfig.driverMemory}" @@ -194,7 +194,7 @@ class K8sJobManager(val namespace:String = "default", | - name: HADOOP_CONF_DIR | value: /etc/hadoop/conf | - name: HADOOP_USER_NAME - | value: ${TaskManagerConfig.HADOOP_USER_NAME} + | value: ${TaskManagerConfig.getHadoopUserName} | executor: | cores: ${jobConfig.executorCores} | instances: ${jobConfig.executorNum} @@ -210,7 +210,7 @@ class K8sJobManager(val namespace:String = "default", | - name: HADOOP_CONF_DIR | value: /etc/hadoop/conf | - name: HADOOP_USER_NAME - | value: ${TaskManagerConfig.HADOOP_USER_NAME} + | value: ${TaskManagerConfig.getHadoopUserName} """.stripMargin // Create a CustomResourceDefinitionContext for the SparkApplication diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/spark/SparkJobManager.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/spark/SparkJobManager.scala index 8d2410fd13a..bc8c5dfebbe 100644 --- a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/spark/SparkJobManager.scala +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/spark/SparkJobManager.scala @@ -36,38 +36,40 @@ object SparkJobManager { * @return the SparkLauncher object */ def createSparkLauncher(mainClass: String): SparkLauncher = { + + + val launcher = new SparkLauncher() + .setAppResource(TaskManagerConfig.getBatchjobJarPath) + .setMainClass(mainClass) + + if (TaskManagerConfig.getSparkHome != null && TaskManagerConfig.getSparkHome.nonEmpty) { + launcher.setSparkHome(TaskManagerConfig.getSparkHome) + } + val env: java.util.Map[String, String] = new java.util.HashMap[String, String] // config may empty, need check - if (!TaskManagerConfig.isEmpty(TaskManagerConfig.HADOOP_CONF_DIR)) { - env.put("HADOOP_CONF_DIR", TaskManagerConfig.HADOOP_CONF_DIR) - } - // env.put("YARN_CONF_DIR", TaskManagerConfig.HADOOP_CONF_DIR) // unused now - if (!TaskManagerConfig.isEmpty(TaskManagerConfig.HADOOP_USER_NAME)){ - env.put("HADOOP_USER_NAME", TaskManagerConfig.HADOOP_USER_NAME) + if (TaskManagerConfig.getHadoopConfDir != null && TaskManagerConfig.getHadoopConfDir.nonEmpty) { + env.put("HADOOP_CONF_DIR", TaskManagerConfig.getHadoopConfDir) } - - val launcher = new SparkLauncher(env) - .setAppResource(TaskManagerConfig.BATCHJOB_JAR_PATH) - .setMainClass(mainClass) - if (!TaskManagerConfig.isEmpty(TaskManagerConfig.SPARK_HOME)) { - launcher.setSparkHome(TaskManagerConfig.SPARK_HOME) + if (TaskManagerConfig.getHadoopUserName != null && TaskManagerConfig.getHadoopUserName.nonEmpty){ + env.put("HADOOP_USER_NAME", TaskManagerConfig.getHadoopUserName) } - if (TaskManagerConfig.SPARK_MASTER.toLowerCase.startsWith("local")) { - launcher.setMaster(TaskManagerConfig.SPARK_MASTER) + if (TaskManagerConfig.getSparkMaster.startsWith("local")) { + launcher.setMaster(TaskManagerConfig.getSparkMaster) } else { - TaskManagerConfig.SPARK_MASTER.toLowerCase match { + TaskManagerConfig.getSparkMaster.toLowerCase match { case "yarn" | "yarn-cluster" => launcher.setMaster("yarn").setDeployMode("cluster") case "yarn-client" => launcher.setMaster("yarn").setDeployMode("client") - case _ => throw new Exception(s"Unsupported Spark master ${TaskManagerConfig.SPARK_MASTER}") + case _ => throw new Exception(s"Unsupported Spark master ${TaskManagerConfig.getSparkMaster}") } } - - if (!TaskManagerConfig.isEmpty(TaskManagerConfig.SPARK_YARN_JARS)) { - launcher.setConf("spark.yarn.jars", TaskManagerConfig.SPARK_YARN_JARS) + + if (TaskManagerConfig.getSparkYarnJars != null && TaskManagerConfig.getSparkYarnJars.nonEmpty) { + launcher.setConf("spark.yarn.jars", TaskManagerConfig.getSparkYarnJars) } launcher @@ -95,17 +97,17 @@ object SparkJobManager { // TODO: Avoid using zh_CN to load openmldb jsdk so - if (TaskManagerConfig.SPARK_EVENTLOG_DIR.nonEmpty) { + if (TaskManagerConfig.getSparkEventlogDir.nonEmpty) { launcher.setConf("spark.eventLog.enabled", "true") - launcher.setConf("spark.eventLog.dir", TaskManagerConfig.SPARK_EVENTLOG_DIR) + launcher.setConf("spark.eventLog.dir", TaskManagerConfig.getSparkEventlogDir) } - if (TaskManagerConfig.SPARK_YARN_MAXAPPATTEMPTS >= 1 ) { - launcher.setConf("spark.yarn.maxAppAttempts", TaskManagerConfig.SPARK_YARN_MAXAPPATTEMPTS.toString) + if (TaskManagerConfig.getSparkYarnMaxappattempts >= 1 ) { + launcher.setConf("spark.yarn.maxAppAttempts", TaskManagerConfig.getSparkYarnMaxappattempts.toString) } // Set default Spark conf by TaskManager configuration file - val defaultSparkConfs = TaskManagerConfig.SPARK_DEFAULT_CONF.split(";") + val defaultSparkConfs = TaskManagerConfig.getSparkDefaultConf.split(";") defaultSparkConfs.map(sparkConf => { if (sparkConf.nonEmpty) { val kvList = sparkConf.split("=") @@ -116,9 +118,9 @@ object SparkJobManager { }) // Set ZooKeeper config for openmldb-batch jobs - if (TaskManagerConfig.ZK_CLUSTER.nonEmpty && TaskManagerConfig.ZK_ROOT_PATH.nonEmpty) { - launcher.setConf("spark.openmldb.zk.cluster", TaskManagerConfig.ZK_CLUSTER) - launcher.setConf("spark.openmldb.zk.root.path", TaskManagerConfig.ZK_ROOT_PATH) + if (TaskManagerConfig.getZkCluster.nonEmpty && TaskManagerConfig.getZkRootPath.nonEmpty) { + launcher.setConf("spark.openmldb.zk.cluster", TaskManagerConfig.getZkCluster) + launcher.setConf("spark.openmldb.zk.root.path", TaskManagerConfig.getZkRootPath) } // Set ad-hoc Spark configuration @@ -126,17 +128,17 @@ object SparkJobManager { launcher.setConf("spark.openmldb.default.db", defaultDb) } - if (TaskManagerConfig.OFFLINE_DATA_PREFIX.nonEmpty) { - launcher.setConf("spark.openmldb.offline.data.prefix", TaskManagerConfig.OFFLINE_DATA_PREFIX) + if (TaskManagerConfig.getOfflineDataPrefix.nonEmpty) { + launcher.setConf("spark.openmldb.offline.data.prefix", TaskManagerConfig.getOfflineDataPrefix) } // Set external function dir for offline jobs - val absoluteExternalFunctionDir = if (TaskManagerConfig.EXTERNAL_FUNCTION_DIR.startsWith("/")) { - TaskManagerConfig.EXTERNAL_FUNCTION_DIR + val absoluteExternalFunctionDir = if (TaskManagerConfig.getExternalFunctionDir.startsWith("/")) { + TaskManagerConfig.getExternalFunctionDir } else { // TODO: The current path is incorrect if running in IDE, please set `external.function.dir` with absolute path // Concat to generate absolute path - Paths.get(Paths.get(".").toAbsolutePath.toString, TaskManagerConfig.EXTERNAL_FUNCTION_DIR).toString + Paths.get(Paths.get(".").toAbsolutePath.toString, TaskManagerConfig.getExternalFunctionDir).toString } launcher.setConf("spark.openmldb.taskmanager.external.function.dir", absoluteExternalFunctionDir) @@ -145,13 +147,13 @@ object SparkJobManager { launcher.setConf(k, v) } - if (TaskManagerConfig.JOB_LOG_PATH.nonEmpty) { + if (TaskManagerConfig.getJobLogPath.nonEmpty) { // Create local file and redirect the log of job into files launcher.redirectOutput(LogManager.getJobLogFile(jobInfo.getId)) launcher.redirectError(LogManager.getJobErrorLogFile(jobInfo.getId)) } - if(TaskManagerConfig.ENABLE_HIVE_SUPPORT) { + if(TaskManagerConfig.getEnableHiveSupport) { launcher.setConf("spark.sql.catalogImplementation", "hive") } diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/tracker/YarnJobTrackerThread.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/tracker/YarnJobTrackerThread.scala index 7424f82cd84..8e45ee5c935 100644 --- a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/tracker/YarnJobTrackerThread.scala +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/tracker/YarnJobTrackerThread.scala @@ -31,7 +31,7 @@ class YarnJobTrackerThread(job: JobInfo) extends Thread { } // Sleep for interval time - Thread.sleep(TaskManagerConfig.JOB_TRACKER_INTERVAL * 1000) + Thread.sleep(TaskManagerConfig.getJobTrackerInterval * 1000) val currentYarnState = appReport.getYarnApplicationState.toString.toLowerCase() diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/util/HdfsUtil.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/util/HdfsUtil.scala new file mode 100644 index 00000000000..c4bbb2ef6f2 --- /dev/null +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/util/HdfsUtil.scala @@ -0,0 +1,49 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.taskmanager.util + +import com._4paradigm.openmldb.taskmanager.config.TaskManagerConfig +import org.apache.hadoop.conf.Configuration +import org.apache.hadoop.fs.{FileSystem, Path} +import org.slf4j.LoggerFactory + +object HdfsUtil { + + private val logger = LoggerFactory.getLogger(this.getClass) + + def deleteHdfsDir(path: String): Unit = { + + val conf = new Configuration() + conf.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "core-site.xml")) + conf.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "hdfs-site.xml")) + + val fs = FileSystem.get(conf) + + val pathToDelete = new Path(path) + + if (fs.exists(pathToDelete)) { + fs.delete(pathToDelete, true); + logger.info("File deleted successfully: " + path) + } else { + logger.warn("File does not exist: " + path) + } + + fs.close() + + } + +} diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/util/VersionUtil.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/util/VersionUtil.scala index a416ce9cd0d..93f66b8eba2 100644 --- a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/util/VersionUtil.scala +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/util/VersionUtil.scala @@ -27,7 +27,7 @@ object VersionUtil { private val logger = LoggerFactory.getLogger(this.getClass) def getBatchVersion(): String = { - val sparkJarsPath = Paths.get(TaskManagerConfig.SPARK_HOME, "jars").toString + val sparkJarsPath = Paths.get(TaskManagerConfig.getSparkHome, "jars").toString val batchJarPath = BatchJobUtil.findOpenmldbBatchJar(sparkJarsPath) if (batchJarPath == null) { logger.error("Fail to find batch jar file and the version is unknown") diff --git a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/yarn/YarnClientUtil.scala b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/yarn/YarnClientUtil.scala index ffb7d5eebaf..803bd9ce5bf 100644 --- a/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/yarn/YarnClientUtil.scala +++ b/java/openmldb-taskmanager/src/main/scala/com/_4paradigm/openmldb/taskmanager/yarn/YarnClientUtil.scala @@ -31,10 +31,10 @@ object YarnClientUtil { def createYarnClient(): YarnClient = { val config = new Configuration() - config.addResource(new Path(TaskManagerConfig.HADOOP_CONF_DIR, "core-site.xml")) - config.addResource(new Path(TaskManagerConfig.HADOOP_CONF_DIR, "hdfs-site.xml")) - config.addResource(new Path(TaskManagerConfig.HADOOP_CONF_DIR, "yarn-site.xml")) - config.addResource(new Path(TaskManagerConfig.HADOOP_CONF_DIR, "mapred-site.xml")) + config.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "core-site.xml")) + config.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "hdfs-site.xml")) + config.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "yarn-site.xml")) + config.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "mapred-site.xml")) // Create yarn client val yarnClient = YarnClient.createYarnClient() @@ -90,10 +90,10 @@ object YarnClientUtil { val config = new YarnConfiguration() // TODO: Load config file in better way - config.addResource(new Path(TaskManagerConfig.HADOOP_CONF_DIR, "core-site.xml")) - config.addResource(new Path(TaskManagerConfig.HADOOP_CONF_DIR, "hdfs-site.xml")) - config.addResource(new Path(TaskManagerConfig.HADOOP_CONF_DIR, "yarn-site.xml")) - config.addResource(new Path(TaskManagerConfig.HADOOP_CONF_DIR, "mapred-site.xml")) + config.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "core-site.xml")) + config.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "hdfs-site.xml")) + config.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "yarn-site.xml")) + config.addResource(new Path(TaskManagerConfig.getHadoopConfDir, "mapred-site.xml")) val logCliHelper = new LogCLIHelpers logCliHelper.setConf(config) diff --git a/java/openmldb-taskmanager/src/test/scala/com/_4paradigm/openmldb/taskmanager/server/impl/TestTaskManagerImpl.scala b/java/openmldb-taskmanager/src/test/scala/com/_4paradigm/openmldb/taskmanager/server/impl/TestTaskManagerImpl.scala index 311f8166eec..86d85ad2919 100644 --- a/java/openmldb-taskmanager/src/test/scala/com/_4paradigm/openmldb/taskmanager/server/impl/TestTaskManagerImpl.scala +++ b/java/openmldb-taskmanager/src/test/scala/com/_4paradigm/openmldb/taskmanager/server/impl/TestTaskManagerImpl.scala @@ -148,8 +148,8 @@ class TestTaskManagerImpl extends FunSuite { val testDb = "db1" val testTable = "t1" val option = new SdkOption - option.setZkCluster(TaskManagerConfig.ZK_CLUSTER) - option.setZkPath(TaskManagerConfig.ZK_ROOT_PATH) + option.setZkCluster(TaskManagerConfig.getZkCluster) + option.setZkPath(TaskManagerConfig.getZkRootPath) val executor = new SqlClusterExecutor(option) executor.createDB(testDb) executor.executeDDL(testDb, s"drop table $testTable") @@ -191,8 +191,8 @@ class TestTaskManagerImpl extends FunSuite { val testDb = "db1" val testTable = "t1" val option = new SdkOption - option.setZkCluster(TaskManagerConfig.ZK_CLUSTER) - option.setZkPath(TaskManagerConfig.ZK_ROOT_PATH) + option.setZkCluster(TaskManagerConfig.getZkCluster) + option.setZkPath(TaskManagerConfig.getZkRootPath) val executor = new SqlClusterExecutor(option) executor.createDB(testDb) @@ -239,8 +239,8 @@ class TestTaskManagerImpl extends FunSuite { val testDb = "db1" val testTable = "t1" val option = new SdkOption - option.setZkCluster(TaskManagerConfig.ZK_CLUSTER) - option.setZkPath(TaskManagerConfig.ZK_ROOT_PATH) + option.setZkCluster(TaskManagerConfig.getZkCluster) + option.setZkPath(TaskManagerConfig.getZkRootPath) val executor = new SqlClusterExecutor(option) executor.createDB(testDb) @@ -295,8 +295,8 @@ class TestTaskManagerImpl extends FunSuite { val testDb = "db1" val testTable = "t1" val option = new SdkOption - option.setZkCluster(TaskManagerConfig.ZK_CLUSTER) - option.setZkPath(TaskManagerConfig.ZK_ROOT_PATH) + option.setZkCluster(TaskManagerConfig.getZkCluster) + option.setZkPath(TaskManagerConfig.getZkRootPath) val executor = new SqlClusterExecutor(option) executor.createDB(testDb) diff --git a/release/sbin/start-taskmanagers.sh b/release/sbin/start-taskmanagers.sh index e0a55767877..b6873c33089 100755 --- a/release/sbin/start-taskmanagers.sh +++ b/release/sbin/start-taskmanagers.sh @@ -39,6 +39,10 @@ else echo "start taskmanager in $dir with endpoint $host:$port " cmd="cd $dir && SPARK_HOME=${SPARK_HOME} bin/start.sh start taskmanager $*" run_auto "$host" "$cmd" + + # Print the log of taskmanager if fail + #cmd="cd $dir && cat taskmanager/bin/logs/taskmanager.log" + #run_auto "$host" "$cmd" done IFS="$old_IFS" -fi \ No newline at end of file +fi From 1b2f9453a0bc691b1209c69e751b6b1b0bef2dcc Mon Sep 17 00:00:00 2001 From: dl239 Date: Fri, 15 Sep 2023 17:24:52 +0800 Subject: [PATCH 052/111] feat: optimize java sdk (#3445) --- .../examples/toydb/src/sdk/result_set_impl.h | 8 + hybridse/include/sdk/base.h | 1 + hybridse/include/sdk/result_set.h | 6 + .../openmldb/common/codec/ByteBitMap.java | 78 ++ .../common/codec/ClassicRowBuilder.java | 511 ++++++++++++ .../openmldb/common/codec/CodecMetaData.java | 105 +++ .../openmldb/common/codec/CodecUtil.java | 58 ++ .../common/codec/FlexibleRowBuilder.java | 390 +++++++++ .../openmldb/common/codec/RowBuilder.java | 432 +--------- .../openmldb/common/codec/RowView.java | 88 +-- .../openmldb/common/RowCodecTest.java | 741 +++++++++++++++--- .../openmldb/common/codec/TestBitMap.java | 86 ++ .../openmldb/common/codec/TestCodecUtil.java | 10 + java/openmldb-jdbc/pom.xml | 11 +- .../jdbc/CallablePreparedStatement.java | 65 +- .../openmldb/jdbc/DirectResultSet.java | 159 ++++ .../openmldb/jdbc/PreparedStatement.java | 251 +----- .../jdbc/RequestPreparedStatement.java | 9 +- .../openmldb/jdbc/SQLResultSet.java | 223 +----- .../openmldb/jdbc/SQLResultSetMetaData.java | 34 +- .../_4paradigm/openmldb/jdbc/Statement.java | 5 +- .../com/_4paradigm/openmldb/sdk/Common.java | 151 +++- .../openmldb/sdk/ProcedureInfo.java | 11 + .../_4paradigm/openmldb/sdk/QueryFuture.java | 33 +- .../com/_4paradigm/openmldb/sdk/Schema.java | 18 + .../BatchCallablePreparedStatementImpl.java | 173 +++- .../BatchRequestPreparedStatementImpl.java | 2 +- .../sdk/impl/CallableDirectResultSet.java | 36 + .../impl/CallablePreparedStatementImpl.java | 151 +++- .../openmldb/sdk/impl/Deployment.java | 73 ++ .../openmldb/sdk/impl/DeploymentManager.java | 101 +++ .../openmldb/sdk/impl/NativeResultSet.java | 184 +++++ .../sdk/impl/PreparedStatementImpl.java | 251 ++++++ .../openmldb/sdk/impl/SqlClusterExecutor.java | 61 +- .../jdbc/RequestPreparedStatementTest.java | 193 ++++- .../openmldb/jdbc/SQLRouterSmokeTest.java | 103 ++- java/openmldb-spark-connector/pom.xml | 7 +- src/catalog/base.cc | 3 + src/catalog/base.h | 5 + src/catalog/tablet_catalog.cc | 43 +- src/catalog/tablet_catalog.h | 4 +- src/catalog/tablet_catalog_test.cc | 24 + src/client/tablet_client.cc | 85 +- src/client/tablet_client.h | 14 +- src/proto/sql_procedure.proto | 1 + src/sdk/batch_request_result_set_sql.h | 5 + src/sdk/result_set_base.h | 4 + src/sdk/result_set_sql.h | 12 + src/sdk/sql_cluster_router.cc | 134 +++- src/sdk/sql_cluster_router.h | 28 +- src/sdk/sql_router.h | 21 + src/sdk/sql_router_sdk.i | 20 + src/tablet/tablet_impl.cc | 8 +- 53 files changed, 3930 insertions(+), 1300 deletions(-) create mode 100644 java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/ByteBitMap.java create mode 100644 java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/ClassicRowBuilder.java create mode 100644 java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/CodecMetaData.java create mode 100644 java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/FlexibleRowBuilder.java create mode 100644 java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/codec/TestBitMap.java create mode 100644 java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/DirectResultSet.java create mode 100644 java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/CallableDirectResultSet.java create mode 100644 java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/Deployment.java create mode 100644 java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/DeploymentManager.java create mode 100644 java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/NativeResultSet.java diff --git a/hybridse/examples/toydb/src/sdk/result_set_impl.h b/hybridse/examples/toydb/src/sdk/result_set_impl.h index 358da6dfe4a..db9b2185fbd 100644 --- a/hybridse/examples/toydb/src/sdk/result_set_impl.h +++ b/hybridse/examples/toydb/src/sdk/result_set_impl.h @@ -71,6 +71,14 @@ class ResultSetImpl : public ResultSet { inline int32_t Size() { return response_->count(); } + void CopyTo(hybridse::sdk::ByteArrayPtr buf) override { + cntl_->response_attachment().copy_to(reinterpret_cast(buf)); + } + + int32_t GetDataLength() override { + return cntl_->response_attachment().size(); + } + private: inline uint32_t GetRecordSize() { return response_->count(); } diff --git a/hybridse/include/sdk/base.h b/hybridse/include/sdk/base.h index 90d8ff75680..e5da48094f8 100644 --- a/hybridse/include/sdk/base.h +++ b/hybridse/include/sdk/base.h @@ -134,6 +134,7 @@ class ProcedureInfo { virtual ProcedureType GetType() const = 0; virtual const std::string* GetOption(const std::string& key) const = 0; virtual const std::unordered_map* GetOption() const = 0; + virtual int GetRouterCol() const = 0; }; } // namespace sdk diff --git a/hybridse/include/sdk/result_set.h b/hybridse/include/sdk/result_set.h index c36d4bb2f0d..fe42bc9dbd3 100644 --- a/hybridse/include/sdk/result_set.h +++ b/hybridse/include/sdk/result_set.h @@ -25,6 +25,9 @@ namespace hybridse { namespace sdk { + +typedef char* ByteArrayPtr; + struct Date { int32_t year; int32_t month; @@ -235,6 +238,9 @@ class ResultSet { virtual bool IsNULL(int index) = 0; virtual int32_t Size() = 0; + + virtual void CopyTo(hybridse::sdk::ByteArrayPtr buf) = 0; + virtual int32_t GetDataLength() = 0; }; } // namespace sdk diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/ByteBitMap.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/ByteBitMap.java new file mode 100644 index 00000000000..760deb784a3 --- /dev/null +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/ByteBitMap.java @@ -0,0 +1,78 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.common.codec; + +public class ByteBitMap { + private int size; + private int length; + private byte[] buf; + + public ByteBitMap(int sizeInBits) { + size = sizeInBits; + length = (sizeInBits >> 3) + ((sizeInBits & 0x07) == 0 ? 0 : 1); + buf = new byte[length]; + } + + public int size() { + return this.size; + } + + public boolean at(int offset) { + int index = indexFor(offset); + return (buf[index] & (1 << (offset & 0x07))) > 0; + } + + public void atPut(int offset, boolean value) { + int index = indexFor(offset); + buf[index] |= (1 << (offset & 0x07)); + } + + public void clear() { + for (int i = 0; i < length; i++) { + buf[i] = 0; + } + } + + public byte[] getBuffer() { + return buf; + } + + public boolean allSetted() { + if ((size & 0x07) == 0) { + for (int i = 0; i < length; i++) { + if (buf[i] != (byte)0xFF) { + return false; + } + } + } else { + for (int i = 0; i < length - 1; i++) { + if (buf[i] != (byte)0xFF) { + return false; + } + } + int val = (1 << (size & 0x07)) - 1; + if (buf[length - 1] != val) { + return false; + } + } + return true; + } + + private int indexFor(int offset) { + return offset >> 3; + } +} diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/ClassicRowBuilder.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/ClassicRowBuilder.java new file mode 100644 index 00000000000..15bb50d0471 --- /dev/null +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/ClassicRowBuilder.java @@ -0,0 +1,511 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package com._4paradigm.openmldb.common.codec; + +import com._4paradigm.openmldb.proto.Type.DataType; +import com._4paradigm.openmldb.proto.Common.ColumnDesc; +import org.joda.time.DateTime; + +import java.nio.ByteBuffer; +import java.nio.ByteOrder; +import java.sql.Date; +import java.sql.Timestamp; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; + +public class ClassicRowBuilder implements RowBuilder { + + private ByteBuffer buf; + private int size = 0; + private int cnt = 0; + List schema = new ArrayList<>(); + private int strFieldCnt = 0; + private int strFieldStartOffset = 0; + private int strAddrLength = 0; + private int strOffset = 0; + private int schemaVersion = 1; + private List offsetVec = new ArrayList<>(); + private List strIdx = new ArrayList<>(); + private int curPos = 0; + + public ClassicRowBuilder(List schema) throws Exception { + calcSchemaOffset(schema); + } + + public ClassicRowBuilder(List schema, int schemaversion) throws Exception { + this.schemaVersion = schemaversion; + calcSchemaOffset(schema); + } + + private void calcSchemaOffset(List schema) throws Exception { + strFieldStartOffset = CodecUtil.HEADER_LENGTH + CodecUtil.getBitMapSize(schema.size()); + this.schema = schema; + for (int idx = 0; idx < schema.size(); idx++) { + ColumnDesc column = schema.get(idx); + if (column.getDataType() == DataType.kVarchar || column.getDataType() == DataType.kString) { + offsetVec.add(strFieldCnt); + strIdx.add(idx); + strFieldCnt++; + } else { + if (CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()) == null) { + throw new Exception("type is not supported"); + } else { + offsetVec.add(strFieldStartOffset); + strFieldStartOffset += CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()); + } + } + } + } + + public void SetSchemaVersion(int version) { + this.schemaVersion = version; + } + + public int calTotalLength(List row) throws Exception { + if (row.size() != schema.size()) { + throw new Exception("row size is not equal schema size"); + } + int stringLength = 0; + for (Integer idx : strIdx) { + Object obj = row.get(idx); + if (obj == null) { + continue; + } + stringLength += ((String)obj).getBytes(CodecUtil.CHARSET).length; + } + return calTotalLength(stringLength); + } + + public int calTotalLength(int stringLength) throws Exception { + if (schema.size() == 0) { + return 0; + } + long totalLength = strFieldStartOffset + stringLength; + if (totalLength + strFieldCnt <= CodecUtil.UINT8_MAX) { + totalLength += strFieldCnt; + } else if (totalLength + strFieldCnt * 2 <= CodecUtil.UINT16_MAX) { + totalLength += strFieldCnt * 2; + } else if (totalLength + strFieldCnt * 3 <= CodecUtil.UINT24_MAX) { + totalLength += strFieldCnt * 3; + } else if (totalLength + strFieldCnt * 4 <= CodecUtil.UINT32_MAX) { + totalLength += strFieldCnt * 4; + } + if (totalLength > Integer.MAX_VALUE) { + throw new Exception("total length is bigger than integer max value"); + } + return (int) totalLength; + } + + public ByteBuffer setBuffer(ByteBuffer buffer, int size) { + if (buffer == null || size == 0 || + size < strFieldStartOffset + strFieldCnt) { + return null; + } + if (buffer.order() == ByteOrder.BIG_ENDIAN) { + buffer = buffer.order(ByteOrder.LITTLE_ENDIAN); + } + this.size = size; + buffer.put((byte) 1); // FVersion + buffer.put((byte) schemaVersion); // SVersion + buffer.putInt(size); // size + for (int idx = 0; idx < CodecUtil.getBitMapSize(schema.size()); idx++) { + buffer.put((byte)0xFF); + } + this.buf = buffer; + strAddrLength = CodecUtil.getAddrLength(size); + strOffset = strFieldStartOffset + strAddrLength * strFieldCnt; + return this.buf; + } + + private void setField(int index) { + int pos = CodecUtil.HEADER_LENGTH + (index >> 3); + byte bt = buf.get(pos); + buf.put(pos, (byte) (bt & (~(1 << (cnt & 0x07))))); + } + + private boolean check(DataType type) { + return CodecUtil.checkType(schema, cnt, type); + } + + private void setStrOffset(int strPos) { + if (strPos >= strFieldCnt) { + return; + } + int index = strFieldStartOffset + strAddrLength * strPos; + CodecUtil.setStrOffset(buf, index, strOffset, strAddrLength); + } + + @Override + public boolean appendNULL() { + ColumnDesc column = schema.get(cnt); + if (column.getDataType() == DataType.kVarchar || column.getDataType() == DataType.kString) { + int strPos = offsetVec.get(cnt); + setStrOffset(strPos + 1); + } + cnt++; + return true; + } + + @Override + public boolean appendBool(boolean val) { + if (!check(DataType.kBool)) { + return false; + } + setField(cnt); + buf.position(offsetVec.get(cnt)); + if (val) { + buf.put((byte) 1); + } else { + buf.put((byte) 0); + } + cnt++; + return true; + } + + @Override + public boolean appendInt(int val) { + if (!check(DataType.kInt)) { + return false; + } + setField(cnt); + buf.position(offsetVec.get(cnt)); + buf.putInt(val); + cnt++; + return true; + } + + @Override + public boolean appendSmallInt(short val) { + if (!check(DataType.kSmallInt)) { + return false; + } + setField(cnt); + buf.position(offsetVec.get(cnt)); + buf.putShort(val); + cnt++; + return true; + } + + @Override + public boolean appendTimestamp(Timestamp val) { + if (!check(DataType.kTimestamp)) { + return false; + } + setField(cnt); + buf.position(offsetVec.get(cnt)); + buf.putLong(val.getTime()); + cnt++; + return true; + } + + @Override + public boolean appendBigInt(long val) { + if (!check(DataType.kBigInt)) { + return false; + } + setField(cnt); + buf.position(offsetVec.get(cnt)); + buf.putLong(val); + cnt++; + return true; + } + + @Override + public boolean appendFloat(float val) { + if (!check(DataType.kFloat)) { + return false; + } + setField(cnt); + buf.position(offsetVec.get(cnt)); + buf.putFloat(val); + cnt++; + return true; + } + + @Override + public boolean appendDouble(double val) { + if (!check(DataType.kDouble)) { + return false; + } + setField(cnt); + buf.position(offsetVec.get(cnt)); + buf.putDouble(val); + cnt++; + return true; + } + + @Override + public boolean appendDate(Date date) { + int dateInt = CodecUtil.dateToDateInt(date); + buf.position(offsetVec.get(cnt)); + buf.putInt(dateInt); + setField(cnt); + cnt++; + return true; + } + + @Override + public boolean appendString(String val) { + byte[] bytes = val.getBytes(CodecUtil.CHARSET); + int length = bytes.length; + if (val == null || (!check(DataType.kVarchar) && !check(DataType.kString))) { + return false; + } + if (strOffset + length > size) { + return false; + } + int strPos = offsetVec.get(cnt); + if (strPos == 0) { + setStrOffset(strPos); + } + if (length != 0) { + buf.position(strOffset); + buf.put(val.getBytes(CodecUtil.CHARSET), 0, length); + } + strOffset += length; + setStrOffset(strPos + 1); + setField(cnt); + cnt++; + return true; + } + + public static ByteBuffer encode(Object[] row, List schema, int schemaVer) throws Exception { + if (row == null || row.length == 0 || schema == null || schema.size() == 0 || row.length != schema.size()) { + throw new Exception("input error"); + } + int strLength = CodecUtil.calStrLength(row, schema); + ClassicRowBuilder builder = new ClassicRowBuilder(schema, schemaVer); + int size = builder.calTotalLength(strLength); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + buffer = builder.setBuffer(buffer, size); + for (int i = 0; i < schema.size(); i++) { + ColumnDesc columnDesc = schema.get(i); + Object column = row[i]; + if (columnDesc.getNotNull() && column == null) { + throw new Exception("col " + columnDesc.getName() + " should not be null"); + } else if (column == null) { + builder.appendNULL(); + continue; + } + boolean ok = false; + switch (columnDesc.getDataType()) { + case kVarchar: + case kString: + ok = builder.appendString((String) column); + break; + case kBool: + ok = builder.appendBool((Boolean) column); + break; + case kSmallInt: + ok = builder.appendSmallInt((Short) column); + break; + case kInt: + ok = builder.appendInt((Integer) column); + break; + case kTimestamp: + if (column instanceof Timestamp) { + ok = builder.appendTimestamp((Timestamp) column); + } else { + ok = false; + } + break; + case kBigInt: + ok = builder.appendBigInt((Long) column); + break; + case kFloat: + ok = builder.appendFloat((Float) column); + break; + case kDate: + ok = builder.appendDate((Date)column); + break; + case kDouble: + ok = builder.appendDouble((Double) column); + break; + default: + throw new Exception("unsupported data type"); + } + if (!ok) { + throw new Exception("append " + columnDesc.getDataType().toString() + " error"); + } + } + return buffer; + } + + public static ByteBuffer encode(Map row, List schema, Map blobKeys, int schemaVersion) throws Exception { + if (row == null || row.size() == 0 || schema == null || schema.size() == 0 || row.size() != schema.size()) { + throw new Exception("input error"); + } + int strLength = CodecUtil.calStrLength(row, schema); + ClassicRowBuilder builder = new ClassicRowBuilder(schema, schemaVersion); + int size = builder.calTotalLength(strLength); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + buffer = builder.setBuffer(buffer, size); + for (int i = 0; i < schema.size(); i++) { + ColumnDesc columnDesc = schema.get(i); + Object column = row.get(columnDesc.getName()); + if (columnDesc.getNotNull() + && column == null) { + throw new Exception("col " + columnDesc.getName() + " should not be null"); + } else if (column == null) { + builder.appendNULL(); + continue; + } + boolean ok = false; + switch (columnDesc.getDataType()) { + case kString: + case kVarchar: + ok = builder.appendString((String) column); + break; + case kBool: + ok = builder.appendBool((Boolean) column); + break; + case kSmallInt: + ok = builder.appendSmallInt((Short) column); + break; + case kInt: + ok = builder.appendInt((Integer) column); + break; + case kTimestamp: + if (column instanceof Timestamp) { + ok = builder.appendTimestamp((Timestamp)column); + }else { + ok = false; + } + break; + case kBigInt: + ok = builder.appendBigInt((Long) column); + break; + case kFloat: + ok = builder.appendFloat((Float) column); + break; + case kDate: + ok = builder.appendDate((Date)column); + break; + case kDouble: + ok = builder.appendDouble((Double) column); + break; + default: + throw new Exception("unsupported data type"); + } + if (!ok) { + throw new Exception("append " + columnDesc.getDataType().toString() + " error"); + } + } + return buffer; + } + + @Override + public boolean setNULL(int idx) { + if (idx != curPos) { + return false; + } + curPos++; + return appendNULL(); + } + + @Override + public boolean setBool(int idx, boolean val) { + if (idx != curPos) { + return false; + } + curPos++; + return appendBool(val); + } + + @Override + public boolean setInt(int idx, int val) { + if (idx != curPos) { + return false; + } + curPos++; + return appendInt(val); + } + + @Override + public boolean setSmallInt(int idx, short val) { + if (idx != curPos) { + return false; + } + curPos++; + return appendSmallInt(val); + } + + @Override + public boolean setTimestamp(int idx, Timestamp val) { + if (idx != curPos) { + return false; + } + curPos++; + return appendTimestamp(val); + } + + @Override + public boolean setBigInt(int idx, long val) { + if (idx != curPos) { + return false; + } + curPos++; + return appendBigInt(val); + } + + @Override + public boolean setFloat(int idx, float val){ + if (idx != curPos) { + return false; + } + curPos++; + return appendFloat(val); + } + + @Override + public boolean setDouble(int idx, double val) { + if (idx != curPos) { + return false; + } + curPos++; + return appendDouble(val); + } + + @Override + public boolean setDate(int idx, Date date) { + if (idx != curPos) { + return false; + } + curPos++; + return appendDate(date); + } + + @Override + public boolean setString(int idx, String val) { + if (idx != curPos) { + return false; + } + curPos++; + return appendString(val); + } + + @Override + public boolean build() { + return true; + } + + @Override + public ByteBuffer getValue() { + return buf; + } +} + diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/CodecMetaData.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/CodecMetaData.java new file mode 100644 index 00000000000..68667e92516 --- /dev/null +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/CodecMetaData.java @@ -0,0 +1,105 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.common.codec; + +import com._4paradigm.openmldb.proto.Common; +import com._4paradigm.openmldb.proto.Type; + +import java.util.ArrayList; +import java.util.List; + +public class CodecMetaData { + private List schema; + private int schemaVersion = 1; + List offsetList = new ArrayList<>(); + List strIdxList = new ArrayList<>(); + private int strFieldCnt = 0; + private int strFieldStartOffset = 0; + private int baseFieldStartOffset = 0; + + public CodecMetaData(List schema) throws Exception { + this(schema, 1, true); + } + + public CodecMetaData(List schema, boolean addOffsetHeader) throws Exception { + this.schema = schema; + calcSchemaOffset(addOffsetHeader); + } + + public CodecMetaData(List schema, int schemaVersion, boolean addOffsetHeader) throws Exception { + this.schema = schema; + this.schemaVersion = schemaVersion; + calcSchemaOffset(addOffsetHeader); + } + + private void calcSchemaOffset(boolean addOffsetHeader) throws Exception { + if (schema.size() == 0) { + throw new Exception("schema size is zero"); + } + baseFieldStartOffset = CodecUtil.HEADER_LENGTH + CodecUtil.getBitMapSize(schema.size()); + int baseOffset = 0; + for (int idx = 0; idx < schema.size(); idx++) { + Common.ColumnDesc column = schema.get(idx); + if (column.getDataType() == Type.DataType.kVarchar || column.getDataType() == Type.DataType.kString) { + offsetList.add(strFieldCnt); + strFieldCnt++; + strIdxList.add(idx); + } else { + if (CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()) == null) { + throw new Exception("type is not supported"); + } else { + if (addOffsetHeader) { + offsetList.add(baseOffset + baseFieldStartOffset); + } else { + offsetList.add(baseOffset); + } + baseOffset += CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()); + } + } + } + strFieldStartOffset = baseFieldStartOffset + baseOffset; + } + + public List getSchema() { + return schema; + } + + public int getSchemaVersion() { + return schemaVersion; + } + + public List getOffsetList() { + return offsetList; + } + + public int getStrFieldCnt() { + return strFieldCnt; + } + + public int getStrFieldStartOffset() { + return strFieldStartOffset; + } + + public int getBaseFieldStartOffset() { + return baseFieldStartOffset; + } + + public List getStrIdxList() { + return strIdxList; + } + +} diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/CodecUtil.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/CodecUtil.java index 84eef47aec6..468b71e762a 100644 --- a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/CodecUtil.java +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/CodecUtil.java @@ -15,9 +15,12 @@ */ package com._4paradigm.openmldb.common.codec; +import com._4paradigm.openmldb.proto.Common; +import com._4paradigm.openmldb.proto.Type; import com._4paradigm.openmldb.proto.Type.DataType; import com._4paradigm.openmldb.proto.Common.ColumnDesc; +import java.nio.ByteBuffer; import java.nio.charset.Charset; import java.nio.charset.StandardCharsets; import java.sql.Date; @@ -158,4 +161,59 @@ public static int dateIntToDays(int dateInt) { return (int)Math.ceil(date.getTime() / 86400000.0); } + public static boolean checkType(List schema, int pos, Type.DataType type) { + if (pos >= schema.size()) { + return false; + } + Common.ColumnDesc column = schema.get(pos); + if (column.getDataType() != type) { + return false; + } + if (column.getDataType() != Type.DataType.kVarchar && column.getDataType() != Type.DataType.kString) { + if (CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()) == null) { + return false; + } + } + return true; + } + + public static void setStrOffset(ByteBuffer buf, int index, int strOffset, int strAddrLength) { + switch (strAddrLength) { + case 1: + buf.put(index, (byte) (strOffset & 0xFF)); + break; + case 2: + buf.putShort(index, (short) (strOffset & 0xFFFF)); + break; + case 3: + buf.put(index, (byte) (strOffset >> 16)); + buf.put(index + 1, (byte) ((strOffset & 0xFF00) >> 8)); + buf.put(index + 2, (byte) (strOffset & 0x00FF)); + break; + default: + buf.putInt(index, strOffset); + + } + } + + public static int getStrOffset(ByteBuffer buf, int offset, int strAddrLength) { + int strOffset = 0; + switch (strAddrLength) { + case 1: + strOffset = buf.get(offset) & 0xFF; + break; + case 2: + strOffset = buf.getShort(offset) & 0xFFFF; + break; + case 3: + strOffset = buf.get(offset) & 0xFF; + strOffset = (strOffset << 8) + (buf.get((offset + 1)) & 0xFF); + strOffset = (strOffset << 8) + (buf.get((offset + 2)) & 0xFF); + break; + default: + strOffset = buf.getInt(offset); + } + return strOffset; + } + } diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/FlexibleRowBuilder.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/FlexibleRowBuilder.java new file mode 100644 index 00000000000..5497237ce20 --- /dev/null +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/FlexibleRowBuilder.java @@ -0,0 +1,390 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.common.codec; + +import com._4paradigm.openmldb.proto.Common; +import com._4paradigm.openmldb.proto.Type; +import com.google.common.io.ByteArrayDataOutput; +import com.google.common.io.ByteStreams; + +import java.nio.ByteBuffer; +import java.nio.ByteOrder; +import java.sql.Date; +import java.sql.Timestamp; +import java.util.List; +import java.util.Map; +import java.util.TreeMap; + +public class FlexibleRowBuilder implements RowBuilder { + + private CodecMetaData metaData; + private int strFieldStartOffset; + + private int curPos = 0; + private ByteBitMap nullBitmap; + private ByteBitMap settedValue; + private ByteBuffer baseFieldBuf; + private ByteBuffer strAddrBuf; + private int strAddrSize = 1; + private ByteArrayDataOutput stringWriter = ByteStreams.newDataOutput(); + private int settedStrCnt = 0; + private ByteBuffer result; + private int strTotalLen = 0; + private int strAddrLen = 0; + // Cache string values in case of out-of-order insertion + private Map stringValueCache; + private int curStrIdx = 0; + + public FlexibleRowBuilder(List schema) throws Exception { + this(new CodecMetaData(schema, 1, false)); + } + + public FlexibleRowBuilder(CodecMetaData metaData) { + this.metaData = metaData; + nullBitmap = new ByteBitMap(metaData.getSchema().size()); + settedValue = new ByteBitMap(metaData.getSchema().size()); + strFieldStartOffset = metaData.getStrFieldStartOffset(); + baseFieldBuf = ByteBuffer.allocate(strFieldStartOffset - metaData.getBaseFieldStartOffset()).order(ByteOrder.LITTLE_ENDIAN); + strAddrLen = strAddrSize * metaData.getStrFieldCnt(); + strAddrBuf = ByteBuffer.allocate(strAddrLen).order(ByteOrder.LITTLE_ENDIAN); + } + + private boolean checkType(int pos, Type.DataType type) { + return CodecUtil.checkType(metaData.getSchema(), pos, type); + } + + private int getOffset(int idx) { + return metaData.getOffsetList().get(idx); + } + + private void setStrOffset(int strPos) { + if (strPos >= metaData.getStrFieldCnt()) { + return; + } + int curOffset = strFieldStartOffset + strAddrLen + strTotalLen; + int curStrAddrSize = CodecUtil.getAddrLength(curOffset); + if (curStrAddrSize > strAddrSize) { + strAddrBuf = expandStrLenBuf(curStrAddrSize, strPos); + strAddrSize = curStrAddrSize; + curOffset = strFieldStartOffset + strAddrLen + strTotalLen; + } + CodecUtil.setStrOffset(strAddrBuf, strPos * strAddrSize, curOffset, strAddrSize); + } + + private ByteBuffer expandStrLenBuf(int newStrAddrsize, int strPos) { + int newStrAddBufLen = newStrAddrsize * metaData.getStrFieldCnt(); + ByteBuffer newStrAddrBuf = ByteBuffer.allocate(newStrAddBufLen).order(ByteOrder.LITTLE_ENDIAN); + for (int i = 0; i < strPos; i++) { + int strOffset = CodecUtil.getStrOffset(strAddrBuf, i * strAddrSize, strAddrSize); + strOffset += (newStrAddBufLen - strAddrLen); + CodecUtil.setStrOffset(newStrAddrBuf, i * newStrAddrsize, strOffset, newStrAddrsize); + } + strAddrLen = newStrAddBufLen; + return newStrAddrBuf; + } + + public void clear() { + nullBitmap.clear(); + settedValue.clear(); + settedStrCnt = 0; + baseFieldBuf.clear(); + strAddrBuf.clear(); + stringWriter = ByteStreams.newDataOutput(); + curPos = 0; + strTotalLen = 0; + strAddrSize = 1; + strAddrLen = strAddrSize * metaData.getStrFieldCnt(); + result = null; + curStrIdx = 0; + if (stringValueCache != null) { + stringValueCache.clear(); + stringValueCache = null; + } + } + + @Override + public boolean appendNULL() { + if (!setNULL(curPos)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendBool(boolean val) { + if (!setBool(curPos, val)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendInt(int val) { + if (!setInt(curPos, val)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendSmallInt(short val) { + if (!setSmallInt(curPos, val)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendTimestamp(Timestamp val) { + if (!setTimestamp(curPos, val)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendBigInt(long val) { + if (!setBigInt(curPos, val)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendFloat(float val) { + if (!setFloat(curPos, val)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendDouble(double val) { + if (!setDouble(curPos, val)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendDate(Date date) { + if (!setDate(curPos, date)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean appendString(String val) { + if (!setString(curPos, val)) { + return false; + } + curPos++; + return true; + } + + @Override + public boolean setNULL(int idx) { + if (idx >= metaData.getSchema().size()) { + return false; + } + Type.DataType type = metaData.getSchema().get(idx).getDataType(); + if (type == Type.DataType.kVarchar || type == Type.DataType.kString) { + if (idx != metaData.getStrIdxList().get(curStrIdx)) { + if (stringValueCache == null) { + stringValueCache = new TreeMap<>(); + } + stringValueCache.put(idx, null); + return true; + } else { + int strPos = getOffset(idx); + setStrOffset(strPos + 1); + settedStrCnt++; + curStrIdx++; + } + } + nullBitmap.atPut(idx, true); + settedValue.atPut(idx, true); + return true; + } + + @Override + public boolean setBool(int idx, boolean val) { + if (!checkType(idx, Type.DataType.kBool)) { + return false; + } + settedValue.atPut(idx, true); + if (val) { + baseFieldBuf.put(getOffset(idx), (byte)1); + } else { + baseFieldBuf.put(getOffset(idx), (byte)0); + } + return true; + } + + @Override + public boolean setInt(int idx, int val) { + if (!checkType(idx, Type.DataType.kInt)) { + return false; + } + settedValue.atPut(idx, true); + baseFieldBuf.putInt(getOffset(idx), val); + return true; + } + + @Override + public boolean setSmallInt(int idx, short val) { + if (!checkType(idx, Type.DataType.kSmallInt)) { + return false; + } + settedValue.atPut(idx, true); + baseFieldBuf.putShort(getOffset(idx), val); + return true; + } + + @Override + public boolean setTimestamp(int idx, Timestamp val) { + if (!checkType(idx, Type.DataType.kTimestamp)) { + return false; + } + settedValue.atPut(idx, true); + baseFieldBuf.putLong(getOffset(idx), val.getTime()); + return true; + } + + @Override + public boolean setBigInt(int idx, long val) { + if (!checkType(idx, Type.DataType.kBigInt)) { + return false; + } + settedValue.atPut(idx, true); + baseFieldBuf.putLong(getOffset(idx), val); + return true; + } + + @Override + public boolean setFloat(int idx, float val) { + if (!checkType(idx, Type.DataType.kFloat)) { + return false; + } + settedValue.atPut(idx, true); + baseFieldBuf.putFloat(getOffset(idx), val); + return true; + } + + @Override + public boolean setDouble(int idx, double val) { + if (!checkType(idx, Type.DataType.kDouble)) { + return false; + } + settedValue.atPut(idx, true); + baseFieldBuf.putDouble(getOffset(idx), val); + return true; + } + + @Override + public boolean setDate(int idx, Date val) { + if (!checkType(idx, Type.DataType.kDate)) { + return false; + } + settedValue.atPut(idx, true); + int dateVal = CodecUtil.dateToDateInt(val); + baseFieldBuf.putInt(getOffset(idx), dateVal); + return true; + } + + @Override + public boolean setString(int idx, String val) { + if (!checkType(idx, Type.DataType.kString) && !checkType(idx, Type.DataType.kVarchar)) { + return false; + } + if (settedValue.at(idx)) { + return false; + } + if (curStrIdx >= metaData.getStrIdxList().size()) { + return false; + } + if (idx != metaData.getStrIdxList().get(curStrIdx)) { + if (stringValueCache == null) { + stringValueCache = new TreeMap<>(); + } + stringValueCache.put(idx, val); + } else { + settedValue.atPut(idx, true); + byte[] bytes = val.getBytes(CodecUtil.CHARSET); + stringWriter.write(bytes); + if (settedStrCnt == 0) { + setStrOffset(settedStrCnt); + } + strTotalLen += bytes.length; + settedStrCnt++; + setStrOffset(settedStrCnt); + curStrIdx++; + } + return true; + } + + @Override + public boolean build() { + if (stringValueCache != null) { + for (Map.Entry kv : stringValueCache.entrySet()) { + if (kv.getValue() == null) { + if (!setNULL(kv.getKey())) { + return false; + } + } else { + if (!setString(kv.getKey(), kv.getValue())) { + return false; + } + } + } + } + if (!settedValue.allSetted()) { + return false; + } + int totalSize = strFieldStartOffset + strAddrLen + strTotalLen; + int curStrAddrSize = CodecUtil.getAddrLength(totalSize); + if (curStrAddrSize > strAddrSize) { + strAddrBuf = expandStrLenBuf(curStrAddrSize, settedStrCnt); + strAddrSize = curStrAddrSize; + totalSize = strFieldStartOffset + strAddrLen + strTotalLen; + } + result = ByteBuffer.allocate(totalSize).order(ByteOrder.LITTLE_ENDIAN); + result.put((byte)1); // FVersion + result.put((byte)metaData.getSchemaVersion()); // SVersion + result.putInt(totalSize); // Size + result.put(nullBitmap.getBuffer()); // BitMap + result.put(baseFieldBuf.array()); // Base data type + result.put(strAddrBuf.array()); // String addr + result.put(stringWriter.toByteArray()); // String value + return true; + } + + @Override + public ByteBuffer getValue() { + return result; + } +} diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/RowBuilder.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/RowBuilder.java index f55869d4c1e..5914cf8e68c 100644 --- a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/RowBuilder.java +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/RowBuilder.java @@ -13,415 +13,37 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -package com._4paradigm.openmldb.common.codec; -import com._4paradigm.openmldb.proto.Type.DataType; -import com._4paradigm.openmldb.proto.Common.ColumnDesc; -import org.joda.time.DateTime; +package com._4paradigm.openmldb.common.codec; import java.nio.ByteBuffer; -import java.nio.ByteOrder; import java.sql.Date; import java.sql.Timestamp; -import java.util.ArrayList; -import java.util.List; -import java.util.Map; - -public class RowBuilder { - - private ByteBuffer buf; - private int size = 0; - private int cnt = 0; - List schema = new ArrayList<>(); - private int strFieldCnt = 0; - private int strFieldStartOffset = 0; - private int strAddrLength = 0; - private int strOffset = 0; - private int schemaVersion = 1; - private List offsetVec = new ArrayList<>(); - private List strIdx = new ArrayList<>(); - - public RowBuilder(List schema) throws Exception { - calcSchemaOffset(schema); - } - - public RowBuilder(List schema, int schemaversion) throws Exception { - this.schemaVersion = schemaversion; - calcSchemaOffset(schema); - } - - private void calcSchemaOffset(List schema) throws Exception { - strFieldStartOffset = CodecUtil.HEADER_LENGTH + CodecUtil.getBitMapSize(schema.size()); - this.schema = schema; - for (int idx = 0; idx < schema.size(); idx++) { - ColumnDesc column = schema.get(idx); - if (column.getDataType() == DataType.kVarchar || column.getDataType() == DataType.kString) { - offsetVec.add(strFieldCnt); - strIdx.add(idx); - strFieldCnt++; - } else { - if (CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()) == null) { - throw new Exception("type is not supported"); - } else { - offsetVec.add(strFieldStartOffset); - strFieldStartOffset += CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()); - } - } - } - } - - public void SetSchemaVersion(int version) { - this.schemaVersion = version; - } - - public int calTotalLength(List row) throws Exception { - if (row.size() != schema.size()) { - throw new Exception("row size is not equal schema size"); - } - int stringLength = 0; - for (Integer idx : strIdx) { - Object obj = row.get(idx); - if (obj == null) { - continue; - } - stringLength += ((String)obj).getBytes(CodecUtil.CHARSET).length; - } - return calTotalLength(stringLength); - } - - public int calTotalLength(int stringLength) throws Exception { - if (schema.size() == 0) { - return 0; - } - long totalLength = strFieldStartOffset + stringLength; - if (totalLength + strFieldCnt <= CodecUtil.UINT8_MAX) { - totalLength += strFieldCnt; - } else if (totalLength + strFieldCnt * 2 <= CodecUtil.UINT16_MAX) { - totalLength += strFieldCnt * 2; - } else if (totalLength + strFieldCnt * 3 <= CodecUtil.UINT24_MAX) { - totalLength += strFieldCnt * 3; - } else if (totalLength + strFieldCnt * 4 <= CodecUtil.UINT32_MAX) { - totalLength += strFieldCnt * 4; - } - if (totalLength > Integer.MAX_VALUE) { - throw new Exception("total length is bigger than integer max value"); - } - return (int) totalLength; - } - - public ByteBuffer setBuffer(ByteBuffer buffer, int size) { - if (buffer == null || size == 0 || - size < strFieldStartOffset + strFieldCnt) { - return null; - } - if (buffer.order() == ByteOrder.BIG_ENDIAN) { - buffer = buffer.order(ByteOrder.LITTLE_ENDIAN); - } - this.size = size; - buffer.put((byte) 1); // FVersion - buffer.put((byte) schemaVersion); // SVersion - buffer.putInt(size); // size - for (int idx = 0; idx < CodecUtil.getBitMapSize(schema.size()); idx++) { - buffer.put((byte)0xFF); - } - this.buf = buffer; - strAddrLength = CodecUtil.getAddrLength(size); - strOffset = strFieldStartOffset + strAddrLength * strFieldCnt; - return this.buf; - } - - private void setField(int index) { - int pos = CodecUtil.HEADER_LENGTH + (index >> 3); - byte bt = buf.get(pos); - buf.put(pos, (byte) (bt & (~(1 << (cnt & 0x07))))); - } - - private boolean check(DataType type) { - if (cnt >= schema.size()) { - return false; - } - ColumnDesc column = schema.get(cnt); - if (column.getDataType() != type) { - return false; - } - if (column.getDataType() != DataType.kVarchar && column.getDataType() != DataType.kString) { - if (CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()) == null) { - return false; - } - } - return true; - } - private void setStrOffset(int strPos) { - if (strPos >= strFieldCnt) { - return; - } - int index = strFieldStartOffset + strAddrLength * strPos; - buf.position(index); - if (strAddrLength == 1) { - buf.put((byte) (strOffset & 0xFF)); - } else if (strAddrLength == 2) { - buf.putShort((short) (strOffset & 0xFFFF)); - } else if (strAddrLength == 3) { - buf.put((byte) (strOffset >> 16)); - buf.put((byte) ((strOffset & 0xFF00) >> 8)); - buf.put((byte) (strOffset & 0x00FF)); - } else { - buf.putInt(strOffset); - } - } - - public boolean appendNULL() { - ColumnDesc column = schema.get(cnt); - if (column.getDataType() == DataType.kVarchar || column.getDataType() == DataType.kString) { - int strPos = offsetVec.get(cnt); - setStrOffset(strPos + 1); - } - cnt++; - return true; - } - - public boolean appendBool(boolean val) { - if (!check(DataType.kBool)) { - return false; - } - setField(cnt); - buf.position(offsetVec.get(cnt)); - if (val) { - buf.put((byte) 1); - } else { - buf.put((byte) 0); - } - cnt++; - return true; - } - - public boolean appendInt(int val) { - if (!check(DataType.kInt)) { - return false; - } - setField(cnt); - buf.position(offsetVec.get(cnt)); - buf.putInt(val); - cnt++; - return true; - } - - public boolean appendSmallInt(short val) { - if (!check(DataType.kSmallInt)) { - return false; - } - setField(cnt); - buf.position(offsetVec.get(cnt)); - buf.putShort(val); - cnt++; - return true; - } - - public boolean appendTimestamp(long val) { - if (!check(DataType.kTimestamp)) { - return false; - } - setField(cnt); - buf.position(offsetVec.get(cnt)); - buf.putLong(val); - cnt++; - return true; - } - - public boolean appendBigInt(long val) { - if (!check(DataType.kBigInt)) { - return false; - } - setField(cnt); - buf.position(offsetVec.get(cnt)); - buf.putLong(val); - cnt++; - return true; - } - - public boolean appendFloat(float val) { - if (!check(DataType.kFloat)) { - return false; - } - setField(cnt); - buf.position(offsetVec.get(cnt)); - buf.putFloat(val); - cnt++; - return true; - } - - public boolean appendDouble(double val) { - if (!check(DataType.kDouble)) { - return false; - } - setField(cnt); - buf.position(offsetVec.get(cnt)); - buf.putDouble(val); - cnt++; - return true; - } - - public boolean appendDate(Date date) { - int dateInt = CodecUtil.dateToDateInt(date); - buf.position(offsetVec.get(cnt)); - buf.putInt(dateInt); - setField(cnt); - cnt++; - return true; - } - - public boolean appendString(String val) { - byte[] bytes = val.getBytes(CodecUtil.CHARSET); - int length = bytes.length; - if (val == null || (!check(DataType.kVarchar) && !check(DataType.kString))) { - return false; - } - if (strOffset + length > size) { - return false; - } - int strPos = offsetVec.get(cnt); - if (strPos == 0) { - setStrOffset(strPos); - } - if (length != 0) { - buf.position(strOffset); - buf.put(val.getBytes(CodecUtil.CHARSET), 0, length); - } - strOffset += length; - setStrOffset(strPos + 1); - setField(cnt); - cnt++; - return true; - } - - public static ByteBuffer encode(Object[] row, List schema, int schemaVer) throws Exception { - if (row == null || row.length == 0 || schema == null || schema.size() == 0 || row.length != schema.size()) { - throw new Exception("input error"); - } - int strLength = CodecUtil.calStrLength(row, schema); - RowBuilder builder = new RowBuilder(schema, schemaVer); - int size = builder.calTotalLength(strLength); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); - for (int i = 0; i < schema.size(); i++) { - ColumnDesc columnDesc = schema.get(i); - Object column = row[i]; - if (columnDesc.getNotNull() && column == null) { - throw new Exception("col " + columnDesc.getName() + " should not be null"); - } else if (column == null) { - builder.appendNULL(); - continue; - } - boolean ok = false; - switch (columnDesc.getDataType()) { - case kVarchar: - case kString: - ok = builder.appendString((String) column); - break; - case kBool: - ok = builder.appendBool((Boolean) column); - break; - case kSmallInt: - ok = builder.appendSmallInt((Short) column); - break; - case kInt: - ok = builder.appendInt((Integer) column); - break; - case kTimestamp: - if (column instanceof DateTime) { - ok = builder.appendTimestamp(((DateTime) column).getMillis()); - }else if (column instanceof Timestamp) { - ok = builder.appendTimestamp(((Timestamp) column).getTime()); - }else { - ok = builder.appendTimestamp((Long) column); - } - break; - case kBigInt: - ok = builder.appendBigInt((Long) column); - break; - case kFloat: - ok = builder.appendFloat((Float) column); - break; - case kDate: - ok = builder.appendDate((Date)column); - break; - case kDouble: - ok = builder.appendDouble((Double) column); - break; - default: - throw new Exception("unsupported data type"); - } - if (!ok) { - throw new Exception("append " + columnDesc.getDataType().toString() + " error"); - } - } - return buffer; - } - - public static ByteBuffer encode(Map row, List schema, Map blobKeys, int schemaVersion) throws Exception { - if (row == null || row.size() == 0 || schema == null || schema.size() == 0 || row.size() != schema.size()) { - throw new Exception("input error"); - } - int strLength = CodecUtil.calStrLength(row, schema); - RowBuilder builder = new RowBuilder(schema, schemaVersion); - int size = builder.calTotalLength(strLength); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); - for (int i = 0; i < schema.size(); i++) { - ColumnDesc columnDesc = schema.get(i); - Object column = row.get(columnDesc.getName()); - if (columnDesc.getNotNull() - && column == null) { - throw new Exception("col " + columnDesc.getName() + " should not be null"); - } else if (column == null) { - builder.appendNULL(); - continue; - } - boolean ok = false; - switch (columnDesc.getDataType()) { - case kString: - case kVarchar: - ok = builder.appendString((String) column); - break; - case kBool: - ok = builder.appendBool((Boolean) column); - break; - case kSmallInt: - ok = builder.appendSmallInt((Short) column); - break; - case kInt: - ok = builder.appendInt((Integer) column); - break; - case kTimestamp: - if (column instanceof DateTime) { - ok = builder.appendTimestamp(((DateTime) column).getMillis()); - }else if (column instanceof Timestamp) { - ok = builder.appendTimestamp(((Timestamp) column).getTime()); - }else { - ok = builder.appendTimestamp((Long) column); - } - break; - case kBigInt: - ok = builder.appendBigInt((Long) column); - break; - case kFloat: - ok = builder.appendFloat((Float) column); - break; - case kDate: - ok = builder.appendDate((Date)column); - break; - case kDouble: - ok = builder.appendDouble((Double) column); - break; - default: - throw new Exception("unsupported data type"); - } - if (!ok) { - throw new Exception("append " + columnDesc.getDataType().toString() + " error"); - } - } - return buffer; - } +public interface RowBuilder { + + boolean appendNULL(); + boolean appendBool(boolean val); + boolean appendInt(int val); + boolean appendSmallInt(short val); + boolean appendTimestamp(Timestamp val); + boolean appendBigInt(long val); + boolean appendFloat(float val); + boolean appendDouble(double val); + boolean appendDate(Date date); + boolean appendString(String val); + + boolean setNULL(int idx); + boolean setBool(int idx, boolean val); + boolean setInt(int idx, int val); + boolean setSmallInt(int idx, short val); + boolean setTimestamp(int idx, Timestamp val); + boolean setBigInt(int idx, long val); + boolean setFloat(int idx, float val); + boolean setDouble(int idx, double val); + boolean setDate(int idx, Date date); + boolean setString(int idx, String val); + + boolean build(); + ByteBuffer getValue(); } - diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/RowView.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/RowView.java index ad1ff0dce7c..adca2d806ce 100644 --- a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/RowView.java +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/RowView.java @@ -19,52 +19,40 @@ import com._4paradigm.openmldb.proto.Type.DataType; import com._4paradigm.openmldb.proto.Common.ColumnDesc; import org.joda.time.DateTime; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; import java.nio.ByteBuffer; import java.nio.ByteOrder; import java.sql.Date; -import java.util.ArrayList; +import java.sql.Timestamp; import java.util.List; public class RowView { + private CodecMetaData metaData; private final static byte BOOL_FALSE = 0; private ByteBuffer row = null; private int size = 0; - private List schema = new ArrayList<>(); - private int stringFieldCnt = 0; - private int strFieldStartOffset = 0; - private int strAddrLength = 0; - private List offsetVec = new ArrayList<>(); + private List schema; private boolean isValid = false; public RowView(List schema) throws Exception { - this.schema = schema; - this.isValid = true; - if (schema.size() == 0) { - isValid = false; - return; - } - init(); + this(new CodecMetaData(schema, true)); } public RowView(List schema, ByteBuffer row, int size) throws Exception { - this.schema = schema; - this.isValid = true; + this(new CodecMetaData(schema, true)); this.size = size; if (row.order() == ByteOrder.BIG_ENDIAN) { row = row.order(ByteOrder.LITTLE_ENDIAN); } this.row = row; - if (schema.size() == 0) { - isValid = false; - return; - } - if (init()) { - reset(row, size); - } + reset(row, size); + } + + public RowView(CodecMetaData metaData) { + this.metaData = metaData; + this.schema = metaData.getSchema(); + this.isValid = true; } public static int getSchemaVersion(ByteBuffer row) { @@ -75,38 +63,21 @@ public static int getSchemaVersion(ByteBuffer row) { return bt; } - private boolean init() throws Exception { - strFieldStartOffset = CodecUtil.HEADER_LENGTH + CodecUtil.getBitMapSize(schema.size()); - for (int idx = 0; idx < schema.size(); idx++) { - ColumnDesc column = schema.get(idx); - if (column.getDataType() == DataType.kVarchar || column.getDataType() == DataType.kString) { - offsetVec.add(stringFieldCnt); - stringFieldCnt++; - } else { - if (CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()) == null) { - isValid = false; - throw new Exception("type is not supported"); - } else { - offsetVec.add(strFieldStartOffset); - strFieldStartOffset += CodecUtil.TYPE_SIZE_MAP.get(column.getDataType()); - } - } - } - return true; - } public boolean reset(ByteBuffer row, int size) { - if (schema.size() == 0 || row == null || size <= CodecUtil.HEADER_LENGTH || - row.getInt(CodecUtil.VERSION_LENGTH) != size) { + if (schema.size() == 0 || row == null || size <= CodecUtil.HEADER_LENGTH) { isValid = false; return false; } if (row.order() == ByteOrder.BIG_ENDIAN) { row = row.order(ByteOrder.LITTLE_ENDIAN); } + if (row.getInt(CodecUtil.VERSION_LENGTH) != size) { + isValid = false; + return false; + } this.row = row; this.size = size; - strAddrLength = CodecUtil.getAddrLength(size); return true; } @@ -124,7 +95,6 @@ private boolean reset(ByteBuffer row) { isValid = false; return false; } - strAddrLength = CodecUtil.getAddrLength(size); return true; } @@ -168,8 +138,8 @@ public Integer getInt(int idx) throws Exception { return (Integer) getValue(row, idx, DataType.kInt); } - public Long getTimestamp(int idx) throws Exception { - return (Long) getValue(row, idx, DataType.kTimestamp); + public Timestamp getTimestamp(int idx) throws Exception { + return (Timestamp) getValue(row, idx, DataType.kTimestamp); } public Long getBigInt(int idx) throws Exception { @@ -188,6 +158,10 @@ public Double getDouble(int idx) throws Exception { return (Double) getValue(row, idx, DataType.kDouble); } + public Date getDate(int idx) throws Exception { + return (Date) getValue(row, idx, DataType.kDate); + } + public Object getIntegersNum(ByteBuffer row, int idx, DataType type) throws Exception { switch (type) { case kSmallInt: { @@ -235,7 +209,13 @@ public Object getValue(ByteBuffer row, int idx, DataType type) throws Exception } ColumnDesc column = schema.get(idx); if (column.getDataType() != type) { - throw new Exception("data type mismatch"); + if (type == DataType.kString || type == DataType.kVarchar) { + if (column.getDataType() != DataType.kString && column.getDataType() != DataType.kVarchar) { + throw new Exception("data type mismatch"); + } + } else { + throw new Exception("data type mismatch"); + } } int rowSize = getSize(row); if (rowSize <= CodecUtil.HEADER_LENGTH) { @@ -255,7 +235,7 @@ private Object readObject(ByteBuffer buf, int index, DataType dt, int rowSize, if (isNull(buf, index)) { return null; } - int offset = offsetVec.get(index); + int offset = metaData.getOffsetList().get(index); switch (dt) { case kBool: return buf.get(offset) == BOOL_FALSE ? false: true; @@ -270,18 +250,18 @@ private Object readObject(ByteBuffer buf, int index, DataType dt, int rowSize, case kDouble: return buf.getDouble(offset); case kTimestamp: - return new DateTime(buf.getLong(offset)); + return new Timestamp(buf.getLong(offset)); case kDate: int date = buf.getInt(offset); return CodecUtil.dateIntToDate(date); case kVarchar: case kString: int nextStrFieldOffset = 0; - if (offset < stringFieldCnt - 1) { + if (offset < metaData.getStrFieldCnt() - 1) { nextStrFieldOffset = offset + 1; } return getStrField(buf, offset, nextStrFieldOffset, - strFieldStartOffset, localStrAddrLength, rowSize); + metaData.getStrFieldStartOffset(), localStrAddrLength, rowSize); default: throw new Exception("invalid column type" + dt.name()); } diff --git a/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/RowCodecTest.java b/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/RowCodecTest.java index aaffe7cb19f..ff1c51f06ea 100644 --- a/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/RowCodecTest.java +++ b/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/RowCodecTest.java @@ -16,47 +16,67 @@ package com._4paradigm.openmldb.common; +import com._4paradigm.openmldb.common.codec.FlexibleRowBuilder; +import com._4paradigm.openmldb.common.codec.RowBuilder; import com._4paradigm.openmldb.proto.Type.DataType; import com._4paradigm.openmldb.proto.Common.ColumnDesc; import com._4paradigm.openmldb.common.codec.RowView; -import com._4paradigm.openmldb.common.codec.RowBuilder; +import com._4paradigm.openmldb.common.codec.ClassicRowBuilder; import org.testng.Assert; +import org.testng.annotations.DataProvider; import org.testng.annotations.Test; import java.nio.ByteBuffer; import java.nio.ByteOrder; -import java.util.ArrayList; -import java.util.Collections; -import java.util.List; +import java.sql.Timestamp; +import java.sql.Date; +import java.util.*; public class RowCodecTest { - @Test - public void testNull() { + private List typeList = new ArrayList<>(Arrays.asList( + DataType.kBool, + DataType.kSmallInt, + DataType.kInt, + DataType.kBigInt, + DataType.kFloat, + DataType.kDouble, + DataType.kDate, + DataType.kTimestamp, + DataType.kString, + DataType.kVarchar) + ); + + @DataProvider(name = "builder") + Object[] getData() { + return new Object[] {"classic", "flexible"}; + } + + @Test(dataProvider = "builder") + public void testNull(String builderName) { try { List schema = new ArrayList(); - { - ColumnDesc col1 = ColumnDesc.newBuilder().setName("col1").setDataType(DataType.kSmallInt).build(); - schema.add(col1); - } - { - ColumnDesc col2 = ColumnDesc.newBuilder().setName("col2").setDataType(DataType.kBool).build(); - schema.add(col2); - } - { - ColumnDesc col3 = ColumnDesc.newBuilder().setName("col3").setDataType(DataType.kVarchar).build(); - schema.add(col3); - } - RowBuilder builder = new RowBuilder(schema); - int size = builder.calTotalLength(9); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); + schema.add(ColumnDesc.newBuilder().setName("col1").setDataType(DataType.kSmallInt).build()); + schema.add(ColumnDesc.newBuilder().setName("col2").setDataType(DataType.kBool).build()); + schema.add(ColumnDesc.newBuilder().setName("col3").setDataType(DataType.kVarchar).build()); + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(9); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } Assert.assertTrue(builder.appendNULL()); Assert.assertTrue(builder.appendBool(false)); Assert.assertTrue(builder.appendString("123456789")); - - RowView rowView = new RowView(schema, buffer, size); + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); Assert.assertTrue(rowView.isNull(0)); + Assert.assertFalse(rowView.isNull(1)); Assert.assertEquals(rowView.getBool(1), new Boolean(false)); Assert.assertEquals(rowView.getString(2), "123456789"); @@ -64,45 +84,40 @@ public void testNull() { Object value = rowView2.getValue(buffer, 2, DataType.kVarchar); Assert.assertEquals((String) value, "123456789"); } catch (Exception e) { + e.printStackTrace(); Assert.assertTrue(false); } } - @Test - public void testNormal() { + @Test(dataProvider = "builder") + public void testNormal(String builderName) { try { List schema = new ArrayList(); - { - ColumnDesc col1 = ColumnDesc.newBuilder().setName("col1").setDataType(DataType.kInt).build(); - schema.add(col1); - } - { - ColumnDesc col2 = ColumnDesc.newBuilder().setName("col2").setDataType(DataType.kSmallInt).build(); - schema.add(col2); - } - { - ColumnDesc col3 = ColumnDesc.newBuilder().setName("col3").setDataType(DataType.kFloat).build(); - schema.add(col3); - } - { - ColumnDesc col4 = ColumnDesc.newBuilder().setName("col4").setDataType(DataType.kDouble).build(); - schema.add(col4); - } - { - ColumnDesc col5 = ColumnDesc.newBuilder().setName("col5").setDataType(DataType.kBigInt).build(); - schema.add(col5); - } - RowBuilder builder = new RowBuilder(schema); - int size = builder.calTotalLength(1); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); + schema.add(ColumnDesc.newBuilder().setName("col1").setDataType(DataType.kInt).build()); + schema.add(ColumnDesc.newBuilder().setName("col2").setDataType(DataType.kSmallInt).build()); + schema.add(ColumnDesc.newBuilder().setName("col3").setDataType(DataType.kFloat).build()); + schema.add(ColumnDesc.newBuilder().setName("col4").setDataType(DataType.kDouble).build()); + schema.add(ColumnDesc.newBuilder().setName("col5").setDataType(DataType.kBigInt).build()); + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(1); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + buffer = cBuilder.setBuffer(buffer, size); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } Assert.assertTrue(builder.appendInt(1)); Assert.assertTrue(builder.appendSmallInt((short) 2)); Assert.assertTrue(builder.appendFloat(3.1f)); Assert.assertTrue(builder.appendDouble(4.1)); Assert.assertTrue(builder.appendBigInt(5)); + builder.build(); - RowView rowView = new RowView(schema, buffer, size); + ByteBuffer buffer = builder.getValue(); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); Assert.assertEquals(rowView.getInt(0), new Integer(1)); Assert.assertEquals(rowView.getSmallInt(1), new Short((short) 2)); Assert.assertEquals(rowView.getFloat(2), 3.1f); @@ -113,8 +128,8 @@ public void testNormal() { } } - @Test - public void testEncode() { + @Test(dataProvider = "builder") + public void testEncode(String builderName) { try { List schema = new ArrayList(); for (int i = 0; i < 10; i++) { @@ -129,10 +144,16 @@ public void testEncode() { } schema.add(col.build()); } - RowBuilder builder = new RowBuilder(schema); - int size = builder.calTotalLength(30); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(30); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } for (int i = 0; i < 10; i++) { if (i % 3 == 0) { @@ -145,8 +166,10 @@ public void testEncode() { } } Assert.assertFalse(builder.appendSmallInt((short) 1)); + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); - RowView rowView = new RowView(schema, buffer, size); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); for (int i = 0; i < 10; i++) { if (i % 3 == 0) { Assert.assertEquals(rowView.getSmallInt(i), new Short((short) i)); @@ -164,12 +187,13 @@ public void testEncode() { Assert.assertTrue(true); } } catch (Exception e) { + e.printStackTrace(); Assert.assertTrue(false); } } - @Test - public void testAppendNull() { + @Test(dataProvider = "builder") + public void testAppendNull(String builderName) { try { List schema = new ArrayList(); for (int i = 0; i < 20; i++) { @@ -184,10 +208,17 @@ public void testAppendNull() { } schema.add(col.build()); } - RowBuilder builder = new RowBuilder(schema); - int size = builder.calTotalLength(30); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(30); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + buffer = cBuilder.setBuffer(buffer, size); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } for (int i = 0; i < 20; i++) { if (i % 2 == 0) { @@ -204,8 +235,10 @@ public void testAppendNull() { } } Assert.assertFalse(builder.appendSmallInt((short) 1)); + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); - RowView rowView = new RowView(schema, buffer, size); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); for (int i = 0; i < 20; i++) { if (i % 2 == 0) { Assert.assertTrue(rowView.isNull(i)); @@ -238,8 +271,8 @@ public void testAppendNull() { } } - @Test - public void testAppendNullAndEmpty() { + @Test(dataProvider = "builder") + public void testAppendNullAndEmpty(String builderName) { try { List schema = new ArrayList(); for (int i = 0; i < 20; i++) { @@ -252,10 +285,17 @@ public void testAppendNullAndEmpty() { } schema.add(col.build()); } - RowBuilder builder = new RowBuilder(schema); - int size = builder.calTotalLength(30); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(30); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } + for (int i = 0; i < 20; i++) { if (i % 2 == 0) { @@ -276,8 +316,9 @@ public void testAppendNullAndEmpty() { } } Assert.assertFalse(builder.appendSmallInt((short) 1)); - - RowView rowView = new RowView(schema, buffer, size); + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); for (int i = 0; i < 20; i++) { if (i % 2 == 0) { if (i % 3 == 0) { @@ -309,8 +350,8 @@ public void testAppendNullAndEmpty() { } } - @Test - public void testManyCol() { + @Test(dataProvider = "builder") + public void testManyCol(String builderName) { int[] arr = {10, 20, 50, 100, 1000, 10000, 100000}; try { for (int colNum : arr) { @@ -335,35 +376,43 @@ public void testManyCol() { schema.add(col.build()); } } - RowBuilder builder = new RowBuilder(schema); - int size = builder.calTotalLength(10 * colNum); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(10 * colNum); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } long base = 1000000000l; long ts = 1576811755000l; for (int idx = 0; idx < colNum; idx++) { - String s = String.join("", Collections.nCopies(10, String.valueOf((base + idx) % 10))); - Assert.assertTrue(builder.appendString(s)); + Assert.assertTrue(builder.appendString(String.valueOf(base + idx))); Assert.assertTrue(builder.appendBigInt(ts + idx)); Assert.assertTrue(builder.appendDouble(1.3)); } + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); - RowView rowView = new RowView(schema, buffer, size); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); for (int idx = 0; idx < colNum; idx++) { - String s = String.join("", Collections.nCopies(10, String.valueOf((base + idx) % 10))); + String s = String.valueOf(base + idx); Assert.assertEquals(rowView.getString(3 * idx), s); Assert.assertEquals(rowView.getBigInt(3 * idx + 1), new Long(ts + idx)); Assert.assertEquals(rowView.getDouble(3 * idx + 2), 1.3); } } } catch (Exception e) { + e.printStackTrace(); Assert.assertTrue(false); } } - @Test - public void testNotAppendString() { + @Test(dataProvider = "builder") + public void testNotAppendString(String builderName) { try { List schema = new ArrayList(); for (int i = 0; i < 10; i++) { @@ -372,10 +421,16 @@ public void testNotAppendString() { col.setDataType(DataType.kVarchar); schema.add(col.build()); } - RowBuilder builder = new RowBuilder(schema); - int size = builder.calTotalLength(100); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(100); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } for (int i = 0; i < 7; i++) { if (i == 0) { @@ -386,17 +441,128 @@ public void testNotAppendString() { } } Assert.assertFalse(builder.appendSmallInt((short) 1)); + if (builderName.equals("classic")) { + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); + for (int i = 0; i < 10; i++) { + if (i == 0) { + Assert.assertTrue(rowView.isNull(i)); + } else if (i < 7) { + String s = String.join("", Collections.nCopies(10, String.valueOf(i % 10))); + Assert.assertEquals(rowView.getString(i), s); + } else { + Assert.assertTrue(rowView.isNull(i)); + } + } + } else { + Assert.assertFalse(builder.build()); + } + } catch (Exception e) { + e.printStackTrace(); + Assert.assertTrue(false); + } + } + + @Test(dataProvider = "builder") + public void testEncodeRow(String builderName) { + try { + List schema = new ArrayList(); + for (int i = 0; i < 10; i++) { + ColumnDesc.Builder col = ColumnDesc.newBuilder(); + col.setName("col" + String.valueOf(i)); + if (i % 2 == 0) { + col.setDataType(DataType.kBigInt); + } else { + col.setDataType(DataType.kVarchar); + } + schema.add(col.build()); + } + List row = new ArrayList<>(); + for (int i = 0; i < 10; i++) { + if (i % 2 == 0) { + row.add(Long.valueOf(i)); + } else { + row.add(new String("aaa") + String.valueOf(i)); + } + } + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(row); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } + + for (int i = 0; i < 10; i++) { + if (i % 2 == 0) { + Assert.assertTrue(builder.appendBigInt((Long)row.get(i))); + } else { + Assert.assertTrue(builder.appendString((String)row.get(i))); + } + } + Assert.assertFalse(builder.appendSmallInt((short) 1)); + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); - RowView rowView = new RowView(schema, buffer, size); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); for (int i = 0; i < 10; i++) { - if (i == 0) { - Assert.assertTrue(rowView.isNull(i)); - } else if (i < 7){ - String s = String.join("", Collections.nCopies(10, String.valueOf(i % 10))); - Assert.assertEquals(rowView.getString(i), s); + if (i % 2 == 0) { + Assert.assertTrue(rowView.getBigInt(i) == i); } else { + Assert.assertEquals(new String("aaa") + String.valueOf(i), rowView.getString(i)); + } + } + } catch (Exception e) { + Assert.fail(); + } + } + + @Test(dataProvider = "builder") + public void testAppendNull2(String builderName) { + try { + List schema = new ArrayList(); + for (int i = 0; i < 2; i++) { + ColumnDesc.Builder col = ColumnDesc.newBuilder(); + col.setName("col" + i); + col.setDataType(DataType.kVarchar); + schema.add(col.build()); + } + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(10); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + buffer = cBuilder.setBuffer(buffer, size); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } + + for (int i = 0; i < 2; i++) { + if (i == 0) { + Assert.assertTrue(builder.appendNULL()); + continue; + } + String s = String.join("", Collections.nCopies(10, String.valueOf(i))); + Assert.assertTrue(builder.appendString(s)); + } + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); + + RowView rowView = new RowView(schema, buffer, buffer.capacity()); + for (int i = 0; i < 2; i++) { + if (i == 0) { Assert.assertTrue(rowView.isNull(i)); + Assert.assertEquals(rowView.getString(i), null); + continue; } + String s = String.join("", Collections.nCopies(10, String.valueOf(i))); + Assert.assertEquals(rowView.getString(i), s); } } catch (Exception e) { e.printStackTrace(); @@ -404,8 +570,222 @@ public void testNotAppendString() { } } - @Test - public void testEncodeRow() { + @DataProvider(name = "columnNum") + Object[] getColNum() { + return new Object[] {1, 3, 5, 10, 20, 30, 50, 100, 200, 300, 500, 1000, 2000, 3000, 5000, 10000, 20000, 100000}; + } + + public String genRandomString(int len) { + Random r = new Random(); + char[] arr = new char[len]; + for (int i = 0; i < len; i++) { + arr[i] = (char)(32 + (int)(94 * r.nextDouble())); + } + return new String(arr); + } + + Object[] genData(List schema) { + Random r = new Random(); + Object[] data = new Object[schema.size()]; + for (int idx = 0; idx < schema.size(); idx++) { + if (r.nextInt() % 5 == 0) { + data[idx] = null; + continue; + } + DataType type = schema.get(idx).getDataType(); + if (type == DataType.kBool) { + data[idx] = r.nextInt() % 2 == 0 ? true : false; + } else if (type == DataType.kSmallInt) { + data[idx] = (short)r.nextInt(10000); + } else if (type == DataType.kInt) { + data[idx] = r.nextInt(10000); + } else if (type == DataType.kBigInt) { + data[idx] = (long)r.nextInt(10000); + } else if (type == DataType.kFloat) { + data[idx] = r.nextFloat(); + } else if (type == DataType.kDouble) { + data[idx] = r.nextDouble(); + } else if (type == DataType.kDate) { + data[idx] = new java.sql.Date(r.nextInt(8000), r.nextInt(11), r.nextInt(25)); + } else if (type == DataType.kTimestamp) { + data[idx] = new Timestamp(System.currentTimeMillis()); + } else if (type == DataType.kVarchar || type == DataType.kString) { + data[idx] = r.nextInt() % 3 == 0 ? "" : genRandomString(r.nextInt(10)); + } + } + return data; + } + + void setData(RowBuilder builder, int idx, DataType type, Object obj) { + if (obj == null) { + builder.setNULL(idx); + return; + } + if (type == DataType.kBool) { + builder.setBool(idx, (boolean)obj); + } else if (type == DataType.kSmallInt) { + builder.setSmallInt(idx, (short)obj); + } else if (type == DataType.kInt) { + builder.setInt(idx, (int)obj); + } else if (type == DataType.kBigInt) { + builder.setBigInt(idx, (long)obj); + } else if (type == DataType.kFloat) { + builder.setFloat(idx, (float)obj); + } else if (type == DataType.kDouble) { + builder.setDouble(idx, (double)obj); + } else if (type == DataType.kDate) { + builder.setDate(idx, (java.sql.Date)obj); + } else if (type == DataType.kTimestamp) { + builder.setTimestamp(idx, (Timestamp) obj); + } else if (type == DataType.kString || type == DataType.kVarchar) { + builder.setString(idx, (String)obj); + } + } + + void checkData(RowView rowView, int idx, DataType type, Object exp) throws Exception { + if (exp == null) { + Assert.assertTrue(rowView.isNull(idx)); + return; + } else { + Assert.assertFalse(rowView.isNull(idx)); + } + if (type == DataType.kBool) { + Assert.assertEquals(rowView.getBool(idx), exp); + } else if (type == DataType.kSmallInt) { + Assert.assertEquals(rowView.getSmallInt(idx), exp); + } else if (type == DataType.kInt) { + Assert.assertEquals(rowView.getInt(idx), exp); + } else if (type == DataType.kBigInt) { + Assert.assertEquals(rowView.getBigInt(idx), exp); + } else if (type == DataType.kFloat) { + Assert.assertEquals(rowView.getFloat(idx), exp); + } else if (type == DataType.kDouble) { + Assert.assertEquals(rowView.getDouble(idx), exp); + } else if (type == DataType.kDate) { + Assert.assertEquals(rowView.getDate(idx), exp); + } else if (type == DataType.kTimestamp) { + Assert.assertEquals(rowView.getTimestamp(idx), exp); + } else if (type == DataType.kString || type == DataType.kVarchar) { + Assert.assertEquals(rowView.getString(idx), (String)exp); + } else { + Assert.fail(); + } + } + + @Test(dataProvider = "columnNum") + public void testDisorderPutBase(int columnNum) { + Random r = new Random(); + List schema = new ArrayList(); + List idx = new ArrayList<>(); + for (int i = 0; i < columnNum; i++) { + ColumnDesc.Builder col = ColumnDesc.newBuilder(); + col.setName("col" + i); + while (true) { + DataType type = typeList.get(r.nextInt(typeList.size())); + if (type != DataType.kString && type != DataType.kVarchar) { + col.setDataType(type); + break; + } + } + schema.add(col.build()); + idx.add(i); + } + Collections.shuffle(idx); + Object[] data = genData(schema); + try { + FlexibleRowBuilder builder = new FlexibleRowBuilder(schema); + for (Integer i : idx) { + setData(builder, i, schema.get(i).getDataType(), data[i]); + } + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); + for (Integer i : idx) { + checkData(rowView, i, schema.get(i).getDataType(), data[i]); + } + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } + } + + @Test(dataProvider = "columnNum") + public void testDisorderPut(int columnNum) { + Random r = new Random(); + List schema = new ArrayList(); + List idx = new ArrayList<>(); + for (int i = 0; i < columnNum; i++) { + ColumnDesc.Builder col = ColumnDesc.newBuilder(); + col.setName("col" + i); + DataType type = typeList.get(r.nextInt(typeList.size())); + col.setDataType(type); + schema.add(col.build()); + idx.add(i); + } + Collections.shuffle(idx); + Object[] data = genData(schema); + try { + FlexibleRowBuilder builder = new FlexibleRowBuilder(schema); + for (Integer i : idx) { + setData(builder, i, schema.get(i).getDataType(), data[i]); + } + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); + for (Integer i : idx) { + try { + checkData(rowView, i, schema.get(i).getDataType(), data[i]); + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } + } + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } + } + + @Test(dataProvider = "columnNum") + public void testDisorderStringOnly(int columnNum) { + Random r = new Random(); + List schema = new ArrayList(); + List idx = new ArrayList<>(); + String[] data = new String[columnNum]; + for (int i = 0; i < columnNum; i++) { + ColumnDesc.Builder col = ColumnDesc.newBuilder(); + col.setName("col" + i); + col.setDataType(DataType.kString); + schema.add(col.build()); + idx.add(i); + data[i] = genRandomString(r.nextInt(1000)); + } + Collections.shuffle(idx); + + try { + FlexibleRowBuilder builder = new FlexibleRowBuilder(schema); + for (Integer i : idx) { + setData(builder, i, schema.get(i).getDataType(), data[i]); + } + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); + for (Integer i : idx) { + try { + checkData(rowView, i, schema.get(i).getDataType(), data[i]); + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } + } + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } + } + + @Test(dataProvider = "builder") + public void testSetMultiTimes(String builderName) { try { List schema = new ArrayList(); for (int i = 0; i < 10; i++) { @@ -426,21 +806,35 @@ public void testEncodeRow() { row.add(new String("aaa") + String.valueOf(i)); } } - RowBuilder builder = new RowBuilder(schema); - int size = builder.calTotalLength(row); - ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); - buffer = builder.setBuffer(buffer, size); + RowBuilder builder; + if (builderName.equals("classic")) { + ClassicRowBuilder cBuilder = new ClassicRowBuilder(schema); + int size = cBuilder.calTotalLength(row); + ByteBuffer buffer = ByteBuffer.allocate(size).order(ByteOrder.LITTLE_ENDIAN); + cBuilder.setBuffer(buffer, size); + builder = cBuilder; + } else { + builder = new FlexibleRowBuilder(schema); + } for (int i = 0; i < 10; i++) { if (i % 2 == 0) { - Assert.assertTrue(builder.appendBigInt((Long)row.get(i))); + Assert.assertTrue(builder.setBigInt(i, (Long)row.get(i))); + if (builder instanceof ClassicRowBuilder) { + Assert.assertFalse(builder.setBigInt(i, (Long)row.get(i))); + } else { + Assert.assertTrue(builder.setBigInt(i, (Long)row.get(i))); + } } else { - Assert.assertTrue(builder.appendString((String)row.get(i))); + Assert.assertTrue(builder.setString(i, (String)row.get(i))); + Assert.assertFalse(builder.setString(i, (String)row.get(i))); } } Assert.assertFalse(builder.appendSmallInt((short) 1)); + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); - RowView rowView = new RowView(schema, buffer, size); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); for (int i = 0; i < 10; i++) { if (i % 2 == 0) { Assert.assertTrue(rowView.getBigInt(i) == i); @@ -449,9 +843,148 @@ public void testEncodeRow() { } } } catch (Exception e) { + e.printStackTrace(); Assert.fail(); } } + @Test + public void testSpecialCase() { + List types = new ArrayList<>(Arrays.asList( + /* 0 */ DataType.kTimestamp, + /* 1 */ DataType.kBool, + /* 2 */ DataType.kSmallInt, + /* 3 */ DataType.kInt, + /* 4 */ DataType.kVarchar, + /* 5 */ DataType.kBool, + /* 6 */ DataType.kTimestamp, + /* 7 */ DataType.kFloat, + /* 8 */ DataType.kInt, + /* 9 */ DataType.kInt, + /* 10 */ DataType.kString, + /* 11 */ DataType.kVarchar, + /* 12 */ DataType.kInt, + /* 13 */ DataType.kTimestamp, + /* 14 */ DataType.kBool, + /* 15 */ DataType.kInt, + /* 16 */ DataType.kInt, + /* 17 */ DataType.kDouble, + /* 18 */ DataType.kInt, + /* 19 */ DataType.kDate, + /* 20 */ DataType.kDate, + /* 21 */ DataType.kSmallInt, + /* 22 */ DataType.kString, + /* 23 */ DataType.kDouble, + /* 24 */ DataType.kBigInt, + /* 25 */ DataType.kBigInt, + /* 26 */ DataType.kVarchar, + /* 27 */ DataType.kSmallInt, + /* 28 */ DataType.kBigInt, + /* 29 */ DataType.kDate, + /* 30 */ DataType.kDate, + /* 31 */ DataType.kDouble, + /* 32 */ DataType.kString, + /* 33 */ DataType.kFloat, + /* 34 */ DataType.kBool, + /* 35 */ DataType.kTimestamp, + /* 36 */ DataType.kBool, + /* 37 */ DataType.kFloat, + /* 38 */ DataType.kVarchar, + /* 39 */ DataType.kInt, + /* 40 */ DataType.kBool, + /* 41 */ DataType.kFloat, + /* 42 */ DataType.kInt, + /* 43 */ DataType.kDate, + /* 44 */ DataType.kTimestamp, + /* 45 */ DataType.kBigInt, + /* 46 */ DataType.kSmallInt, + /* 47 */ DataType.kInt, + /* 48 */ DataType.kVarchar, + /* 49 */ DataType.kBool + )); + List schema = new ArrayList(); + List idx = new ArrayList<>(Arrays.asList( + 36, 3, 31, 8, 27, 10, 49, 44, 23, 20, 40, 28, 25, 19, 29, 24, 11, 21, 13, 30, 46, 26, 41, 1, 17, + 5, 45, 37, 43, 0, 38, 33, 22, 35, 39, 12, 9, 16, 48, 6, 7, 34, 47, 42, 4, 15, 14, 2, 32, 18 + )); + for (int i = 0; i < types.size(); i++) { + ColumnDesc.Builder col = ColumnDesc.newBuilder(); + col.setName("col" + i); + DataType type = types.get(i); + col.setDataType(type); + schema.add(col.build()); + } + Object[] data = { + /* 0 */ new Timestamp(System.currentTimeMillis()), + /* 1 */ true, + /* 2 */ null, + /* 3 */ null, + /* 4 */ "val10417", + /* 5 */ false, + /* 6 */ new Timestamp(System.currentTimeMillis()), + /* 7 */ 0.759f, + /* 8 */ 9053, + /* 9 */ null, + /* 10 */ "val10564", + /* 11 */ "", + /* 12 */ 5870, + /* 13 */ new Timestamp(System.currentTimeMillis()), + /* 14 */ false, + /* 15 */ 3155, + /* 16 */ 3022, + /* 17 */ 0.78d, + /* 18 */ 8100, + /* 19 */ null, + /* 20 */ new Date(2542, 3, 13), + /* 21 */ (short)8712, + /* 22 */ "val10187", + /* 23 */ 0.39d, + /* 24 */ (long)1941, + /* 25 */ 357l, + /* 26 */ "val10139", + /* 27 */ (short)376, + /* 28 */ null, + /* 29 */ new Date(3041, 3, 8), + /* 30 */ new Date(2782, 6, 22), + /* 31 */ 0.22d, + /* 32 */ "val10117", + /* 33 */ 0.19f, + /* 34 */ false, + /* 35 */ new Timestamp(System.currentTimeMillis()), + /* 36 */ false, + /* 37 */ 0.49f, + /* 38 */ "", + /* 39 */ 1117, + /* 40 */ false, + /* 41 */ 0.61f, + /* 42 */ 489, + /* 43 */ new Date(5282, 8, 8), + /* 44 */ null, + /* 45 */ null, + /* 46 */ null, + /* 47 */ null, + /* 48 */ "val10738", + /* 49 */ false + }; + try { + FlexibleRowBuilder builder = new FlexibleRowBuilder(schema); + for (Integer i : idx) { + setData(builder, i, schema.get(i).getDataType(), data[i]); + } + Assert.assertTrue(builder.build()); + ByteBuffer buffer = builder.getValue(); + RowView rowView = new RowView(schema, buffer, buffer.capacity()); + for (Integer i : idx) { + try { + checkData(rowView, i, schema.get(i).getDataType(), data[i]); + } catch (Exception e) { + Assert.fail(); + } + } + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } + } } diff --git a/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/codec/TestBitMap.java b/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/codec/TestBitMap.java new file mode 100644 index 00000000000..3836d757fa3 --- /dev/null +++ b/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/codec/TestBitMap.java @@ -0,0 +1,86 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.common.codec; + +import org.testng.Assert; +import org.testng.annotations.Test; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; + +public class TestBitMap { + @Test + public void testValue() { + ByteBitMap bitmap = new ByteBitMap(10); + for (int i = 0; i < 10; i++) { + Assert.assertFalse(bitmap.at(i)); + } + for (int i = 0; i < 10; i++) { + bitmap.atPut(i, true); + Assert.assertTrue(bitmap.at(i)); + } + bitmap.clear(); + List v = Arrays.asList(1, 4, 7); + for (int i : v) { + bitmap.atPut(i, true); + } + for (int i = 0; i < 10; i++) { + if (v.contains(i)) { + Assert.assertTrue(bitmap.at(i)); + } else { + Assert.assertFalse(bitmap.at(i)); + } + } + } + + @Test + public void testClear() { + ByteBitMap bitmap = new ByteBitMap(10); + bitmap.clear(); + for (int i = 0; i < 10; i++) { + Assert.assertFalse(bitmap.at(i)); + } + } + + @Test + public void testSize() { + Assert.assertEquals(new ByteBitMap(1).getBuffer().length, 1); + Assert.assertEquals(new ByteBitMap(7).getBuffer().length, 1); + Assert.assertEquals(new ByteBitMap(8).getBuffer().length, 1); + Assert.assertEquals(new ByteBitMap(9).getBuffer().length, 2); + Assert.assertEquals(new ByteBitMap(15).getBuffer().length, 2); + Assert.assertEquals(new ByteBitMap(16).getBuffer().length, 2); + Assert.assertEquals(new ByteBitMap(17).getBuffer().length, 3); + Assert.assertEquals(new ByteBitMap(100).getBuffer().length, 13); + } + + @Test + public void testSetted() { + for (int i = 1; i < 1000; i++) { + ByteBitMap bitmap = new ByteBitMap(i + 1); + Assert.assertFalse(bitmap.allSetted()); + bitmap.atPut(i % 5, true); + Assert.assertFalse(bitmap.allSetted()); + for (int j = 0; j < bitmap.size(); j++) { + bitmap.atPut(j, true); + } + Assert.assertTrue(bitmap.allSetted()); + } + + } +} diff --git a/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/codec/TestCodecUtil.java b/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/codec/TestCodecUtil.java index 0d2269a8a4b..f2a62ca7a1d 100644 --- a/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/codec/TestCodecUtil.java +++ b/java/openmldb-common/src/test/java/com/_4paradigm/openmldb/common/codec/TestCodecUtil.java @@ -19,6 +19,7 @@ import org.testng.Assert; import org.testng.annotations.Test; +import java.nio.ByteBuffer; import java.sql.Date; public class TestCodecUtil { @@ -79,5 +80,14 @@ public void testFromDaysToDays() { Assert.assertEquals(actualDays, expectDays); } + @Test + public void testSetStrOffset() { + for (int i = 1; i < 1000000; i++) { + int addLen = CodecUtil.getAddrLength(i); + ByteBuffer buf = ByteBuffer.allocate(addLen); + CodecUtil.setStrOffset(buf, 0, i, addLen); + Assert.assertEquals(i, CodecUtil.getStrOffset(buf, 0, addLen)); + } + } } diff --git a/java/openmldb-jdbc/pom.xml b/java/openmldb-jdbc/pom.xml index 0b2b8af9df0..3978579b373 100644 --- a/java/openmldb-jdbc/pom.xml +++ b/java/openmldb-jdbc/pom.xml @@ -38,6 +38,11 @@ openmldb-native ${variant.native.version} + + com.4paradigm.openmldb + openmldb-common + ${project.parent.version} + @@ -51,6 +56,11 @@ log4j-core 2.17.2 + + org.xerial.snappy + snappy-java + 1.1.7.2 + @@ -59,7 +69,6 @@ 6.14.3 test - diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/CallablePreparedStatement.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/CallablePreparedStatement.java index 0e67e93125d..b63afee098b 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/CallablePreparedStatement.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/CallablePreparedStatement.java @@ -17,65 +17,34 @@ package com._4paradigm.openmldb.jdbc; import com._4paradigm.openmldb.SQLRouter; -import com._4paradigm.openmldb.Status; +import com._4paradigm.openmldb.common.codec.FlexibleRowBuilder; import com._4paradigm.openmldb.sdk.QueryFuture; +import com._4paradigm.openmldb.sdk.impl.Deployment; +import java.sql.ResultSetMetaData; import java.sql.SQLException; -import java.util.ArrayList; import java.util.concurrent.TimeUnit; -public class CallablePreparedStatement extends RequestPreparedStatement { - protected String spName; - private com._4paradigm.openmldb.ProcedureInfo procedureInfo; +public abstract class CallablePreparedStatement extends PreparedStatement { + protected Deployment deployment; + protected FlexibleRowBuilder rowBuilder; + protected String db; + protected String deploymentName; - public CallablePreparedStatement(String db, String spName, SQLRouter router) throws SQLException { - if (db == null) throw new SQLException("db is null"); + public CallablePreparedStatement(Deployment deployment, SQLRouter router) throws SQLException { if (router == null) throw new SQLException("router is null"); - if (spName == null) throw new SQLException("spName is null"); - - this.db = db; this.router = router; - this.spName = spName; - - Status status = new Status(); - procedureInfo = router.ShowProcedure(db, spName, status); - if (procedureInfo == null || status.getCode() != 0) { - String msg = status.ToString(); - status.delete(); - throw new SQLException("show procedure failed, msg: " + msg); - } - this.currentSql = procedureInfo.GetSql(); - this.currentRow = router.GetRequestRow(db, procedureInfo.GetSql(), status); - if (status.getCode() != 0 || this.currentRow == null) { - String msg = status.ToString(); - status.delete(); - throw new SQLException("getRequestRow failed!, msg: " + msg); - } - status.delete(); - this.currentSchema = procedureInfo.GetInputSchema(); - if (this.currentSchema == null) { - throw new SQLException("inputSchema is null"); - } - int cnt = this.currentSchema.GetColumnCnt(); - this.currentDatas = new ArrayList<>(cnt); - this.hasSet = new ArrayList<>(cnt); - for (int i = 0; i < cnt; i++) { - this.hasSet.add(false); - currentDatas.add(null); - } - } - - @Override - public void close() throws SQLException { - super.close(); - this.spName = null; - if (this.procedureInfo != null) { - procedureInfo.delete(); - procedureInfo = null; - } + this.deployment = deployment; + db = deployment.getDatabase(); + deploymentName = deployment.getName(); } public QueryFuture executeQueryAsync(long timeOut, TimeUnit unit) throws SQLException { throw new SQLException("current do not support this method"); } + + @Override + public ResultSetMetaData getMetaData() { + return new SQLResultSetMetaData(deployment.getInputSchema()); + } } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/DirectResultSet.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/DirectResultSet.java new file mode 100644 index 00000000000..a3d9497f78d --- /dev/null +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/DirectResultSet.java @@ -0,0 +1,159 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.jdbc; + +import com._4paradigm.openmldb.common.codec.RowView; +import com._4paradigm.openmldb.sdk.Schema; + +import java.nio.ByteBuffer; +import java.sql.*; + +public abstract class DirectResultSet extends SQLResultSet { + + protected ByteBuffer buf; + protected RowView rowView; + + public DirectResultSet(ByteBuffer buf, int totalRows, Schema schema) { + this.buf = buf; + this.totalRows = totalRows; + this.schema = schema; + } + + @Override + public void close() throws SQLException { + closed = true; + } + + @Override + public String getString(int i) throws SQLException { + int realIdx = i - 1; + try { + return rowView.getString(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + @Override + public boolean getBoolean(int i) throws SQLException { + int realIdx = i - 1; + if (rowView.isNull(realIdx)) { + return false; + } + try { + return rowView.getBool(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + @Override + public short getShort(int i) throws SQLException { + int realIdx = i - 1; + if (rowView.isNull(realIdx)) { + return 0; + } + try { + return rowView.getSmallInt(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + @Override + public int getInt(int i) throws SQLException { + int realIdx = i - 1; + if (rowView.isNull(realIdx)) { + return 0; + } + try { + return rowView.getInt(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + @Override + public long getLong(int i) throws SQLException { + int realIdx = i - 1; + if (rowView.isNull(realIdx)) { + return 0; + } + try { + return rowView.getBigInt(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + @Override + public float getFloat(int i) throws SQLException { + int realIdx = i - 1; + if (rowView.isNull(realIdx)) { + return 0.0f; + } + try { + return rowView.getFloat(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + @Override + public double getDouble(int i) throws SQLException { + int realIdx = i - 1; + if (rowView.isNull(realIdx)) { + return 0.0; + } + try { + return rowView.getDouble(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + @Override + public Date getDate(int i) throws SQLException { + int realIdx = i - 1; + try { + return rowView.getDate(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + + @Override + public Timestamp getTimestamp(int i) throws SQLException { + int realIdx = i - 1; + try { + return rowView.getTimestamp(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } + + @Override + public String getNString(int i) throws SQLException { + int realIdx = i - 1; + try { + return rowView.getString(realIdx); + } catch (Exception e) { + throw new SQLException(e.getMessage()); + } + } +} diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/PreparedStatement.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/PreparedStatement.java index 44aa969e6d0..0d38f460384 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/PreparedStatement.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/PreparedStatement.java @@ -17,50 +17,21 @@ package com._4paradigm.openmldb.jdbc; import com._4paradigm.openmldb.*; -import com._4paradigm.openmldb.sdk.impl.Util; import java.io.InputStream; import java.io.Reader; import java.math.BigDecimal; import java.net.URL; -import java.nio.charset.Charset; -import java.nio.charset.StandardCharsets; import java.sql.Date; import java.sql.ResultSet; import java.sql.*; import java.util.*; -public class PreparedStatement implements java.sql.PreparedStatement { - public static final Charset CHARSET = StandardCharsets.UTF_8; - protected String db; - protected String currentSql; +public abstract class PreparedStatement implements java.sql.PreparedStatement { protected SQLRouter router; - protected SQLRequestRow currentRow; - protected Schema currentSchema; - protected TreeMap types; - protected TreeMap orgTypes; - protected TreeMap currentDatas; protected boolean closed = false; protected boolean closeOnComplete = false; - protected Map stringsLen = new HashMap<>(); - private void checkNull() throws SQLException { - if (db == null) { - throw new SQLException("db is null"); - } - if (currentSql == null) { - throw new SQLException("sql is null"); - } - if (router == null) { - throw new SQLException("SQLRouter is null"); - } - if (currentDatas == null) { - throw new SQLException("currentDatas is null"); - } - if (types == null) { - throw new SQLException("currentDatas is null"); - } - } protected void checkClosed() throws SQLException { if (closed) { @@ -74,123 +45,24 @@ protected void checkExecutorClosed() throws SQLException { } } - void checkIdx(int i) throws SQLException { - checkClosed(); - checkNull(); - if (i <= 0) { - throw new SQLException("index out of array"); - } - if (currentDatas.containsKey(i)) { - throw new SQLException("index duplicate, index: " + i + " already exist"); - } - } - - @Override - public SQLResultSet executeQuery() throws SQLException { - checkClosed(); - checkExecutorClosed(); - dataBuild(); - Status status = new Status(); - com._4paradigm.openmldb.ResultSet resultSet = router.ExecuteSQLParameterized(db, currentSql, currentRow, status); - if (resultSet == null || status.getCode() != 0) { - String msg = status.ToString(); - status.delete(); - if (resultSet != null) { - resultSet.delete(); - } - throw new SQLException("execute sql fail, msg: " + msg); - } - status.delete(); - SQLResultSet rs = new SQLResultSet(resultSet); - if (closeOnComplete) { - closed = true; - } - return rs; - } - @Override @Deprecated public int executeUpdate() throws SQLException { throw new SQLException("current do not support this method"); } - @Override - public void setNull(int parameterIndex, int sqlType) throws SQLException { - setNull(parameterIndex, Util.sqlTypeToDataType(sqlType)); - } - - private void setNull(int i, DataType type) throws SQLException { - checkIdx(i); - types.put(i, type); - currentDatas.put(i, null); - } - - @Override - public void setBoolean(int i, boolean b) throws SQLException { - checkIdx(i); - types.put(i, DataType.kTypeBool); - currentDatas.put(i, b); - } - @Override @Deprecated public void setByte(int i, byte b) throws SQLException { throw new SQLException("current do not support this method"); } - @Override - public void setShort(int i, short i1) throws SQLException { - checkIdx(i); - types.put(i, DataType.kTypeInt16); - currentDatas.put(i, i1); - } - - @Override - public void setInt(int i, int i1) throws SQLException { - checkIdx(i); - types.put(i, DataType.kTypeInt32); - currentDatas.put(i, i1); - } - - @Override - public void setLong(int i, long l) throws SQLException { - checkIdx(i); - types.put(i, DataType.kTypeInt64); - currentDatas.put(i, l); - } - - @Override - public void setFloat(int i, float v) throws SQLException { - checkIdx(i); - types.put(i, DataType.kTypeFloat); - currentDatas.put(i, v); - } - - @Override - public void setDouble(int i, double v) throws SQLException { - checkIdx(i); - types.put(i, DataType.kTypeDouble); - currentDatas.put(i, v); - } - @Override @Deprecated public void setBigDecimal(int i, BigDecimal bigDecimal) throws SQLException { throw new SQLException("current do not support this type"); } - @Override - public void setString(int i, String s) throws SQLException { - checkIdx(i); - if (s == null) { - setNull(i, DataType.kTypeString); - return; - } - types.put(i, DataType.kTypeString); - byte[] bytes = s.getBytes(CHARSET); - stringsLen.put(i, bytes.length); - currentDatas.put(i, bytes); - } @Override @Deprecated @@ -198,35 +70,12 @@ public void setBytes(int i, byte[] bytes) throws SQLException { throw new SQLException("current do not support this type"); } - @Override - public void setDate(int i, Date date) throws SQLException { - checkIdx(i); - if (date == null) { - setNull(i, DataType.kTypeDate); - return; - } - types.put(i, DataType.kTypeDate); - currentDatas.put(i, date); - } - @Override @Deprecated public void setTime(int i, Time time) throws SQLException { throw new SQLException("current do not support this type"); } - @Override - public void setTimestamp(int i, Timestamp timestamp) throws SQLException { - checkIdx(i); - if (timestamp == null) { - setNull(i, DataType.kTypeTimestamp); - return; - } - types.put(i, DataType.kTypeTimestamp); - long ts = timestamp.getTime(); - currentDatas.put(i, ts); - } - @Override @Deprecated public void setAsciiStream(int i, InputStream inputStream, int i1) throws SQLException { @@ -245,89 +94,12 @@ public void setBinaryStream(int i, InputStream inputStream, int i1) throws SQLEx throw new SQLException("current do not support this type"); } - @Override - public void clearParameters() { - currentDatas.clear(); - types.clear(); - stringsLen.clear(); - } - @Override @Deprecated public void setObject(int i, Object o, int i1) throws SQLException { throw new SQLException("current do not support this method"); } - protected void dataBuild() throws SQLException { - if (types == null) { - throw new SQLException("fail to build data when data types is null"); - } - // types has been updated - if (null == this.currentRow || orgTypes != types) { - if (types.firstKey() != 1 || types.lastKey() != types.size()) { - throw new SQLException("data not enough, indexes are " + currentDatas.keySet()); - } - ColumnTypes columnTypes = new ColumnTypes(); - for (int i = 0; i < types.size(); i++) { - columnTypes.AddColumnType(types.get(i + 1)); - } - this.currentRow = SQLRequestRow.CreateSQLRequestRowFromColumnTypes(columnTypes); - if (this.currentRow == null) { - throw new SQLException("fail to create sql request row from column types"); - } - this.currentSchema = this.currentRow.GetSchema(); - this.orgTypes = this.types; - } - if (this.currentSchema == null) { - throw new SQLException("fail to build data with null schema"); - } - int strLen = 0; - for (Map.Entry entry : stringsLen.entrySet()) { - strLen += entry.getValue(); - } - boolean ok = this.currentRow.Init(strLen); - if (!ok) { - throw new SQLException("build data row failed"); - } - for (int i = 0; i < this.currentSchema.GetColumnCnt(); i++) { - DataType dataType = this.currentSchema.GetColumnType(i); - Object data = this.currentDatas.get(i + 1); - if (data == null) { - ok = this.currentRow.AppendNULL(); - } else { - if (DataType.kTypeBool.equals(dataType)) { - ok = this.currentRow.AppendBool((boolean) data); - } else if (DataType.kTypeDate.equals(dataType)) { - Date date = (Date) data; - ok = this.currentRow.AppendDate(date.getYear() + 1900, date.getMonth() + 1, date.getDate()); - } else if (DataType.kTypeDouble.equals(dataType)) { - ok = this.currentRow.AppendDouble((double) data); - } else if (DataType.kTypeFloat.equals(dataType)) { - ok = this.currentRow.AppendFloat((float) data); - } else if (DataType.kTypeInt16.equals(dataType)) { - ok = this.currentRow.AppendInt16((short) data); - } else if (DataType.kTypeInt32.equals(dataType)) { - ok = this.currentRow.AppendInt32((int) data); - } else if (DataType.kTypeInt64.equals(dataType)) { - ok = this.currentRow.AppendInt64((long) data); - } else if (DataType.kTypeString.equals(dataType)) { - byte[] bdata = (byte[]) data; - ok = this.currentRow.AppendString(bdata, bdata.length); - } else if (DataType.kTypeTimestamp.equals(dataType)) { - ok = this.currentRow.AppendTimestamp((long) data); - } else { - throw new SQLException("unkown data type " + dataType.toString()); - } - } - if (!ok) { - throw new SQLException("append data failed, idx is " + i); - } - } - if (!this.currentRow.Build()) { - throw new SQLException("build request row failed"); - } - clearParameters(); - } @Override @Deprecated @@ -377,13 +149,6 @@ public void setArray(int i, Array array) throws SQLException { throw new SQLException("current do not support this method"); } - @Override - public ResultSetMetaData getMetaData() throws SQLException { - checkClosed(); - checkNull(); - return new SQLResultSetMetaData(this.currentSchema); - } - @Override @Deprecated public void setDate(int i, Date date, Calendar calendar) throws SQLException { @@ -548,21 +313,7 @@ public int executeUpdate(String s) throws SQLException { @Override public void close() throws SQLException { - this.db = null; - this.currentSql = null; this.router = null; - if (this.currentSchema != null) { - this.currentSchema.delete(); - this.currentSchema = null; - } - this.currentDatas = null; - this.types = null; - this.orgTypes = null; - this.stringsLen = null; - if (this.currentRow != null) { - this.currentRow.delete(); - this.currentRow = null; - } this.closed = true; } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatement.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatement.java index 336ca1dd409..dc1d09d13ba 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatement.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatement.java @@ -17,6 +17,8 @@ package com._4paradigm.openmldb.jdbc; import com._4paradigm.openmldb.*; +import com._4paradigm.openmldb.sdk.Common; +import com._4paradigm.openmldb.sdk.impl.NativeResultSet; import java.io.InputStream; import java.io.Reader; @@ -49,9 +51,6 @@ private void checkNull() throws SQLException { if (db == null) { throw new SQLException("db is null"); } - if (currentSql == null) { - throw new SQLException("sql is null"); - } if (router == null) { throw new SQLException("SQLRouter is null"); } @@ -114,7 +113,7 @@ public SQLResultSet executeQuery() throws SQLException { throw new SQLException("execute sql fail, msg: " + msg); } status.delete(); - SQLResultSet rs = new SQLResultSet(resultSet); + SQLResultSet rs = new NativeResultSet(resultSet); if (closeOnComplete) { closed = true; } @@ -399,7 +398,7 @@ public void setArray(int i, Array array) throws SQLException { public ResultSetMetaData getMetaData() throws SQLException { checkClosed(); checkNull(); - return new SQLResultSetMetaData(this.currentSchema); + return new SQLResultSetMetaData(Common.convertSchema(this.currentSchema)); } @Override diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLResultSet.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLResultSet.java index ab5d44e3070..69f19d027ad 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLResultSet.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLResultSet.java @@ -1,24 +1,6 @@ -/* - * Copyright 2021 4Paradigm - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - package com._4paradigm.openmldb.jdbc; -import com._4paradigm.openmldb.DataType; -import com._4paradigm.openmldb.QueryFuture; -import com._4paradigm.openmldb.Schema; +import com._4paradigm.openmldb.sdk.Schema; import java.io.InputStream; import java.io.Reader; @@ -28,92 +10,24 @@ import java.util.Calendar; import java.util.Map; -public class SQLResultSet implements ResultSet { - private com._4paradigm.openmldb.ResultSet resultSet; - private boolean closed = false; - private int rowNum = 0; - private QueryFuture queryFuture; - private Schema schema; - - public SQLResultSet(com._4paradigm.openmldb.ResultSet resultSet) { - this.resultSet = resultSet; - if (resultSet != null) { - this.schema = resultSet.GetSchema(); - } - } - - public SQLResultSet(com._4paradigm.openmldb.ResultSet resultSet, QueryFuture future) { - this.resultSet = resultSet; - this.queryFuture = future; - if (resultSet != null) { - this.schema = resultSet.GetSchema(); - } - } - - private void check(int i, DataType type) throws SQLException { - checkClosed(); - checkResultSetNull(); - checkIdx(i); - checkDataType(i, type); - } - - private void checkClosed() throws SQLException { - if (closed) { - throw new SQLException("resultset closed"); - } - } - - private void checkIdx(int i) throws SQLException { - if (i <= 0) { - throw new SQLException("index underflow"); - } - if (i > schema.GetColumnCnt()) { - throw new SQLException("index overflow"); - } - } - - private void checkResultSetNull() throws SQLException{ - if (this.resultSet == null) { - throw new SQLException("resultset is null"); - } - } - - private void checkDataType(int i, DataType type) throws SQLException { - if (schema.GetColumnType(i - 1) != type) { - throw new SQLException(String.format("data type not match, get %s and expect %s", - schema.GetColumnType(i - 1), type)); - } - } +public abstract class SQLResultSet implements ResultSet { + protected boolean closed = false; + protected int rowNum = 0; + protected int totalRows = 0; + protected Schema schema; public Schema GetInternalSchema() { return schema; } @Override - public boolean next() throws SQLException { - checkClosed(); - checkResultSetNull(); - if (this.resultSet.Next()) { - this.rowNum++; - return true; - } else { - return false; - } + public SQLResultSetMetaData getMetaData() throws SQLException { + return new SQLResultSetMetaData(schema); } @Override - public void close() throws SQLException { - if (schema != null) { - schema.delete(); - schema = null; - } - this.resultSet.delete(); - this.resultSet = null; - if (queryFuture != null) { - queryFuture.delete(); - queryFuture = null; - } - this.closed = true; + public boolean isClosed() throws SQLException { + return closed; } @Override @@ -122,75 +36,6 @@ public boolean wasNull() throws SQLException { throw new SQLException("current do not support this method"); } - @Override - public String getString(int i) throws SQLException { - check(i, DataType.kTypeString); - if (this.resultSet.IsNULL(i - 1)) { - return null; - } - return this.resultSet.GetStringUnsafe(i - 1); - } - - @Override - public boolean getBoolean(int i) throws SQLException { - check(i, DataType.kTypeBool); - if (this.resultSet.IsNULL(i - 1)) { - return false; - } - return this.resultSet.GetBoolUnsafe(i - 1); - } - - @Override - @Deprecated - public byte getByte(int i) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - public short getShort(int i) throws SQLException { - check(i, DataType.kTypeInt16); - if (this.resultSet.IsNULL(i - 1)) { - return 0; - } - return this.resultSet.GetInt16Unsafe(i - 1); - } - - @Override - public int getInt(int i) throws SQLException { - check(i, DataType.kTypeInt32); - if (this.resultSet.IsNULL(i - 1)) { - return 0; - } - return resultSet.GetInt32Unsafe(i - 1); - } - - @Override - public long getLong(int i) throws SQLException { - check(i, DataType.kTypeInt64); - if (this.resultSet.IsNULL(i - 1)) { - return 0; - } - return this.resultSet.GetInt64Unsafe(i - 1); - } - - @Override - public float getFloat(int i) throws SQLException { - check(i, DataType.kTypeFloat); - if (this.resultSet.IsNULL(i - 1)) { - return 0.0f; - } - return this.resultSet.GetFloatUnsafe(i - 1); - } - - @Override - public double getDouble(int i) throws SQLException { - check(i, DataType.kTypeDouble); - if (this.resultSet.IsNULL(i - 1)) { - return 0.0; - } - return resultSet.GetDoubleUnsafe(i - 1); - } - @Override @Deprecated public BigDecimal getBigDecimal(int i, int i1) throws SQLException { @@ -203,31 +48,12 @@ public byte[] getBytes(int i) throws SQLException { throw new SQLException("current do not support this method"); } - @Override - public Date getDate(int i) throws SQLException { - check(i, DataType.kTypeDate); - if (this.resultSet.IsNULL(i - 1)) { - return null; - } - com._4paradigm.openmldb.Date date = this.resultSet.GetStructDateUnsafe(i - 1); - return new Date(date.getYear() - 1900, date.getMonth() - 1, date.getDay()); - } - @Override @Deprecated public Time getTime(int i) throws SQLException { throw new SQLException("current do not support this method"); } - @Override - public Timestamp getTimestamp(int i) throws SQLException { - check(i, DataType.kTypeTimestamp); - if (this.resultSet.IsNULL(i - 1)) { - return null; - } - return new Timestamp(this.resultSet.GetTimeUnsafe(i -1)); - } - @Override @Deprecated public InputStream getAsciiStream(int i) throws SQLException { @@ -365,10 +191,9 @@ public String getCursorName() throws SQLException { } @Override - public SQLResultSetMetaData getMetaData() throws SQLException { - checkClosed(); - checkResultSetNull(); - return new SQLResultSetMetaData(schema); + @Deprecated + public byte getByte(int i) throws SQLException { + throw new SQLException("current do not support this method"); } @Override @@ -463,8 +288,6 @@ public boolean last() throws SQLException { @Override public int getRow() throws SQLException { - checkClosed(); - checkResultSetNull(); return this.rowNum; } @@ -507,9 +330,7 @@ public void setFetchSize(int i) throws SQLException { @Override @Deprecated public int getFetchSize() throws SQLException { - checkClosed(); - checkResultSetNull(); - return this.resultSet.Size(); + return totalRows; } @Override @@ -1004,11 +825,6 @@ public int getHoldability() throws SQLException { throw new SQLException("current do not support this method"); } - @Override - public boolean isClosed() throws SQLException { - return closed; - } - @Override @Deprecated public void updateNString(int i, String s) throws SQLException { @@ -1069,17 +885,6 @@ public void updateSQLXML(String s, SQLXML sqlxml) throws SQLException { throw new SQLException("current do not support this method"); } - @Override - public String getNString(int i) throws SQLException { - checkClosed(); - checkResultSetNull(); - checkIdx(i); - if (this.resultSet.IsNULL(i - 1)) { - return null; - } - return this.resultSet.GetAsStringUnsafe(i - 1); - } - @Override @Deprecated public String getNString(String s) throws SQLException { diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLResultSetMetaData.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLResultSetMetaData.java index f44ca49c5b8..6ff6f1029dd 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLResultSetMetaData.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLResultSetMetaData.java @@ -16,10 +16,7 @@ package com._4paradigm.openmldb.jdbc; -import com._4paradigm.openmldb.DataType; -import com._4paradigm.openmldb.Schema; -import com._4paradigm.openmldb.sdk.Common; - +import com._4paradigm.openmldb.sdk.Schema; import java.sql.ResultSetMetaData; import java.sql.SQLException; @@ -31,30 +28,18 @@ public SQLResultSetMetaData(Schema schema) { this.schema = schema; } - private void checkSchemaNull() throws SQLException { - if (schema == null) { - throw new SQLException("schema is null"); - } - } - - private void checkIdx(int i) throws SQLException { + private void check(int i) throws SQLException { if (i <= 0) { throw new SQLException("index underflow"); } - if (i > schema.GetColumnCnt()) { + if (i > schema.size()) { throw new SQLException("index overflow"); } } - public void check(int i) throws SQLException { - checkIdx(i); - checkSchemaNull(); - } - @Override public int getColumnCount() throws SQLException { - checkSchemaNull(); - return schema.GetColumnCnt(); + return schema.size(); } @Override @@ -84,10 +69,10 @@ public boolean isCurrency(int i) throws SQLException { @Override public int isNullable(int i) throws SQLException { check(i); - if (schema.IsColumnNotNull(i - 1)) { - return columnNoNulls; - } else { + if (schema.isNullable(i - 1)) { return columnNullable; + } else { + return columnNoNulls; } } @@ -112,7 +97,7 @@ public String getColumnLabel(int i) throws SQLException { @Override public String getColumnName(int i) throws SQLException { check(i); - return schema.GetColumnName(i - 1); + return schema.getColumnName(i - 1); } @Override @@ -148,8 +133,7 @@ public String getCatalogName(int i) throws SQLException { @Override public int getColumnType(int i) throws SQLException { check(i); - DataType dataType = schema.GetColumnType(i - 1); - return Common.type2SqlType(dataType); + return schema.getColumnType(i - 1); } @Override diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/Statement.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/Statement.java index 79aeca51555..e4706bc4f9c 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/Statement.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/Statement.java @@ -1,6 +1,7 @@ package com._4paradigm.openmldb.jdbc; import com._4paradigm.openmldb.SQLRouter; import com._4paradigm.openmldb.Status; +import com._4paradigm.openmldb.sdk.impl.NativeResultSet; import java.sql.*; @@ -36,7 +37,7 @@ public ResultSet getResultSet() throws SQLException { if (resultSet == null) { throw new SQLException("no result set"); } - return new SQLResultSet(resultSet); + return new NativeResultSet(resultSet); } // TODO(hw): why return sqlresultset? @@ -51,7 +52,7 @@ public SQLResultSet executeQuery(String sql) throws SQLException { throw new SQLException("executeSQL fail: " + msg); } status.delete(); - return new SQLResultSet(resultSet); + return new NativeResultSet(resultSet); } @Override diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Common.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Common.java index 2476635267b..0c57cf26a5a 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Common.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Common.java @@ -17,35 +17,85 @@ package com._4paradigm.openmldb.sdk; import com._4paradigm.openmldb.DataType; +import com._4paradigm.openmldb.proto.Type; import java.sql.SQLException; import java.sql.Types; import java.util.ArrayList; +import java.util.HashMap; import java.util.List; +import java.util.Map; public class Common { + private static Map proto2SqlTypeMap = new HashMap() { + { + put(Type.DataType.kBool, Types.BOOLEAN); + put(Type.DataType.kSmallInt, Types.SMALLINT); + put(Type.DataType.kInt, Types.INTEGER); + put(Type.DataType.kBigInt, Types.BIGINT); + put(Type.DataType.kFloat, Types.FLOAT); + put(Type.DataType.kDouble, Types.DOUBLE); + put(Type.DataType.kDate, Types.DATE); + put(Type.DataType.kTimestamp, Types.TIMESTAMP); + put(Type.DataType.kString, Types.VARCHAR); + put(Type.DataType.kVarchar, Types.VARCHAR); + } + }; + + private static Map dataType2SqlTypeMap = new HashMap() { + { + put(DataType.kTypeBool, Types.BOOLEAN); + put(DataType.kTypeInt16, Types.SMALLINT); + put(DataType.kTypeInt32, Types.INTEGER); + put(DataType.kTypeInt64, Types.BIGINT); + put(DataType.kTypeFloat, Types.FLOAT); + put(DataType.kTypeDouble, Types.DOUBLE); + put(DataType.kTypeDate, Types.DATE); + put(DataType.kTypeTimestamp, Types.TIMESTAMP); + put(DataType.kTypeString, Types.VARCHAR); + } + }; + + public static int type2SqlType(DataType dataType) throws SQLException { - if (dataType == DataType.kTypeBool) { - return Types.BOOLEAN; - } else if (dataType == DataType.kTypeInt16) { - return Types.SMALLINT; - } else if (dataType == DataType.kTypeInt32) { - return Types.INTEGER; - } else if (dataType == DataType.kTypeInt64) { - return Types.BIGINT; - } else if (dataType == DataType.kTypeFloat) { - return Types.FLOAT; - } else if (dataType == DataType.kTypeDouble) { - return Types.DOUBLE; - } else if (dataType == DataType.kTypeString) { - return Types.VARCHAR; - } else if (dataType == DataType.kTypeDate) { - return Types.DATE; - } else if (dataType == DataType.kTypeTimestamp) { - return Types.TIMESTAMP; - } else { + Integer type = dataType2SqlTypeMap.get(dataType); + if (type == null) { throw new SQLException("Unexpected value: " + dataType.toString()); } + return type; + } + + public static int type2SqlType(com._4paradigm.openmldb.proto.Type.DataType dataType) throws SQLException { + Integer type = proto2SqlTypeMap.get(dataType); + if (type == null) { + throw new SQLException("Unexpected value: " + dataType.name()); + } + return type; + } + + public static com._4paradigm.openmldb.proto.Type.DataType sqlType2ProtoType(int sqlType) throws SQLException { + switch (sqlType) { + case Types.BOOLEAN: + return Type.DataType.kBool; + case Types.SMALLINT: + return Type.DataType.kSmallInt; + case Types.INTEGER: + return Type.DataType.kInt; + case Types.BIGINT: + return Type.DataType.kBigInt; + case Types.FLOAT: + return Type.DataType.kFloat; + case Types.DOUBLE: + return Type.DataType.kDouble; + case Types.VARCHAR: + return Type.DataType.kString; + case Types.TIMESTAMP: + return Type.DataType.kTimestamp; + case Types.DATE: + return Type.DataType.kDate; + default: + throw new SQLException("Unexpected value: " + sqlType); + } } public static com._4paradigm.openmldb.sdk.Schema convertSchema(com._4paradigm.openmldb.Schema schema) throws SQLException { @@ -64,6 +114,33 @@ public static com._4paradigm.openmldb.sdk.Schema convertSchema(com._4paradigm.op return new com._4paradigm.openmldb.sdk.Schema(columnList); } + public static com._4paradigm.openmldb.sdk.Schema convertSchema(List pbSchema) throws SQLException { + if (pbSchema.isEmpty()) { + throw new SQLException("schema is empty"); + } + List columnList = new ArrayList<>(); + for (com._4paradigm.openmldb.proto.Common.ColumnDesc col : pbSchema) { + Column column = new Column(); + column.setColumnName(col.getName()); + column.setSqlType(type2SqlType(col.getDataType())); + column.setNotNull(col.getNotNull()); + columnList.add(column); + } + return new com._4paradigm.openmldb.sdk.Schema(columnList); + } + + public static List convert2ProtoSchema(com._4paradigm.openmldb.sdk.Schema schema) throws SQLException { + List columnList = new ArrayList<>(); + for (Column column : schema.getColumnList()) { + com._4paradigm.openmldb.proto.Common.ColumnDesc.Builder builder = com._4paradigm.openmldb.proto.Common.ColumnDesc.newBuilder(); + builder.setName(column.getColumnName()) + .setDataType(sqlType2ProtoType(column.getSqlType())) + .setNotNull(column.isNotNull()); + columnList.add(builder.build()); + } + return columnList; + } + public static DataType sqlTypeToDataType(int sqlType) throws SQLException { switch (sqlType) { case Types.BOOLEAN: @@ -88,4 +165,40 @@ public static DataType sqlTypeToDataType(int sqlType) throws SQLException { throw new SQLException("Unexpected Values: " + sqlType); } } + + public static ProcedureInfo convertProcedureInfo(com._4paradigm.openmldb.ProcedureInfo procedureInfo) throws SQLException { + ProcedureInfo spInfo = new ProcedureInfo(); + spInfo.setDbName(procedureInfo.GetDbName()); + spInfo.setProName(procedureInfo.GetSpName()); + spInfo.setSql(procedureInfo.GetSql()); + spInfo.setInputSchema(convertSchema(procedureInfo.GetInputSchema())); + spInfo.setOutputSchema(convertSchema(procedureInfo.GetOutputSchema())); + spInfo.setMainTable(procedureInfo.GetMainTable()); + spInfo.setInputTables(procedureInfo.GetTables()); + spInfo.setInputDbs(procedureInfo.GetDbs()); + spInfo.setRouterCol(procedureInfo.GetRouterCol()); + return spInfo; + } + + public static ProcedureInfo convertProcedureInfo(com._4paradigm.openmldb.proto.SQLProcedure.ProcedureInfo procedureInfo) throws SQLException { + ProcedureInfo spInfo = new ProcedureInfo(); + spInfo.setDbName(procedureInfo.getDbName()); + spInfo.setProName(procedureInfo.getSpName()); + spInfo.setSql(procedureInfo.getSql()); + spInfo.setInputSchema(Common.convertSchema(procedureInfo.getInputSchemaList())); + spInfo.setOutputSchema(Common.convertSchema(procedureInfo.getOutputSchemaList())); + spInfo.setMainTable(procedureInfo.getMainTable()); + List tables = new ArrayList<>(); + List dbs = new ArrayList<>(); + for (com._4paradigm.openmldb.proto.Common.DbTableNamePair pair : procedureInfo.getTablesList()) { + tables.add(pair.getTableName()); + dbs.add(pair.getDbName()); + } + spInfo.setInputTables(tables); + spInfo.setInputDbs(dbs); + if (procedureInfo.getRouterColCount() > 0) { + spInfo.setRouterCol(procedureInfo.getRouterCol(0)); + } + return spInfo; + } } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/ProcedureInfo.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/ProcedureInfo.java index 7795952a84c..309c8532a9e 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/ProcedureInfo.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/ProcedureInfo.java @@ -27,8 +27,11 @@ public class ProcedureInfo { private Schema outputSchema; private String mainTable; private List inputTables = new ArrayList<>(); + private List inputDbs= new ArrayList<>(); + private int routerCol = -1; + public ProcedureInfo() { } @@ -95,4 +98,12 @@ public String getMainTable() { public void setMainTable(String mainTable) { this.mainTable = mainTable; } + + public void setRouterCol(int routerCol) { + this.routerCol = routerCol; + } + + public int getRouterCol() { + return routerCol; + } } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/QueryFuture.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/QueryFuture.java index 374dce9758e..12bbd1ab8d9 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/QueryFuture.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/QueryFuture.java @@ -17,10 +17,13 @@ package com._4paradigm.openmldb.sdk; import com._4paradigm.openmldb.Status; -import com._4paradigm.openmldb.jdbc.SQLResultSet; +import com._4paradigm.openmldb.common.codec.CodecMetaData; +import com._4paradigm.openmldb.sdk.impl.CallableDirectResultSet; import org.slf4j.Logger; import org.slf4j.LoggerFactory; +import java.nio.ByteBuffer; +import java.nio.ByteOrder; import java.util.concurrent.ExecutionException; import java.util.concurrent.Future; import java.util.concurrent.TimeUnit; @@ -29,9 +32,13 @@ public class QueryFuture implements Future{ private static final Logger logger = LoggerFactory.getLogger(QueryFuture.class); com._4paradigm.openmldb.QueryFuture queryFuture; + Schema schema; + CodecMetaData metaData; - public QueryFuture(com._4paradigm.openmldb.QueryFuture queryFuture) { + public QueryFuture(com._4paradigm.openmldb.QueryFuture queryFuture, Schema schema, CodecMetaData metaData) { this.queryFuture = queryFuture; + this.schema = schema; + this.metaData = metaData; } @Override @@ -48,23 +55,37 @@ public boolean isCancelled() { @Override public boolean isDone() { - return queryFuture.IsDone(); + if (queryFuture != null) { + return queryFuture.IsDone(); + } + return true; } @Override public java.sql.ResultSet get() throws InterruptedException, ExecutionException { + if (queryFuture == null) { + throw new ExecutionException(new SqlException("queryFuture is null")); + } Status status = new Status(); com._4paradigm.openmldb.ResultSet resultSet = queryFuture.GetResultSet(status); if (status.getCode() != 0 || resultSet == null) { String msg = status.ToString(); status.delete(); - status = null; + if (resultSet != null) { + resultSet.delete(); + } logger.error("call procedure failed: {}", msg); throw new ExecutionException(new SqlException("call procedure failed: " + msg)); } status.delete(); - status = null; - return new SQLResultSet(resultSet, queryFuture); + int totalRows = resultSet.Size(); + int dataLength = resultSet.GetDataLength(); + ByteBuffer dataBuf = ByteBuffer.allocate(dataLength).order(ByteOrder.LITTLE_ENDIAN); + resultSet.CopyTo(dataBuf.array()); + resultSet.delete(); + queryFuture.delete(); + queryFuture = null; + return new CallableDirectResultSet(dataBuf, totalRows, schema, metaData); } /** diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Schema.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Schema.java index 1c23ece9cae..f708adf2b74 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Schema.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Schema.java @@ -24,9 +24,11 @@ public class Schema { private List columnList; + private int size; public Schema(List columnList) { this.columnList = columnList; + this.size = columnList.size(); } public List getColumnList() { @@ -46,4 +48,20 @@ public String toString() { } }).collect(Collectors.joining(",")); } + + public int size() { + return size; + } + + public String getColumnName(int idx) { + return columnList.get(idx).getColumnName(); + } + + public int getColumnType(int idx) { + return columnList.get(idx).getSqlType(); + } + + public boolean isNullable(int idx) { + return !columnList.get(idx).isNotNull(); + } } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/BatchCallablePreparedStatementImpl.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/BatchCallablePreparedStatementImpl.java index ffbd8cf283a..e1b1c8b21e9 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/BatchCallablePreparedStatementImpl.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/BatchCallablePreparedStatementImpl.java @@ -18,35 +18,52 @@ import com._4paradigm.openmldb.*; +import com._4paradigm.openmldb.common.codec.FlexibleRowBuilder; import com._4paradigm.openmldb.jdbc.CallablePreparedStatement; import com._4paradigm.openmldb.jdbc.SQLResultSet; import com._4paradigm.openmldb.sdk.QueryFuture; +import java.nio.ByteBuffer; +import java.nio.ByteOrder; import java.sql.SQLException; +import java.sql.Timestamp; +import java.util.ArrayList; +import java.util.List; import java.util.concurrent.TimeUnit; public class BatchCallablePreparedStatementImpl extends CallablePreparedStatement { - private ColumnIndicesSet commonColumnIndices; - private SQLRequestRowBatch currentRowBatch; - - public BatchCallablePreparedStatementImpl(String db, String spName, SQLRouter router) throws SQLException { - super(db, spName, router); - this.commonColumnIndices = new ColumnIndicesSet(this.currentSchema); - for (int i = 0; i < this.currentSchema.GetColumnCnt(); i++) { - if (this.currentSchema.IsConstant(i)) { - this.commonColumnIndices.AddCommonColumnIdx(i); - } + + private List datas = new ArrayList<>(); + private ByteBuffer meta; + private ByteBuffer result; + private int totalSize = 0; + + public BatchCallablePreparedStatementImpl(Deployment deployment, SQLRouter router) throws SQLException { + super(deployment, router); + rowBuilder = new FlexibleRowBuilder(deployment.getInputMetaData()); + } + + private void build() throws SQLException { + if (datas.isEmpty()) { + throw new SQLException("no data"); + } + meta = ByteBuffer.allocate(4 * (datas.size() + 1)).order(ByteOrder.LITTLE_ENDIAN); + meta.putInt(0); // reserved for common slice + result = ByteBuffer.allocate(totalSize); + for (ByteBuffer buf : datas) { + meta.putInt(buf.capacity()); + result.put(buf.array()); } - this.currentRowBatch = new SQLRequestRowBatch(this.currentSchema, this.commonColumnIndices); } @Override public SQLResultSet executeQuery() throws SQLException { checkClosed(); checkExecutorClosed(); + build(); Status status = new Status(); - com._4paradigm.openmldb.ResultSet resultSet = router.ExecuteSQLBatchRequest( - db, currentSql, currentRowBatch, status); + com._4paradigm.openmldb.ResultSet resultSet = router.CallSQLBatchRequestProcedure( + db, deploymentName, meta.array(), meta.capacity(), result.array(), result.capacity(), status); if (status.getCode() != 0 || resultSet == null) { String msg = status.ToString(); status.delete(); @@ -56,10 +73,16 @@ public SQLResultSet executeQuery() throws SQLException { throw new SQLException("execute sql fail: " + msg); } status.delete(); - SQLResultSet rs = new SQLResultSet(resultSet); + int totalRows = resultSet.Size(); + int dataLength = resultSet.GetDataLength(); + ByteBuffer dataBuf = ByteBuffer.allocate(dataLength).order(ByteOrder.LITTLE_ENDIAN); + resultSet.CopyTo(dataBuf.array()); + resultSet.delete(); + SQLResultSet rs = new CallableDirectResultSet(dataBuf, totalRows, deployment.getOutputSchema(), deployment.getOutputMetaData()); if (closeOnComplete) { closed = true; } + clearParameters(); return rs; } @@ -67,41 +90,37 @@ public SQLResultSet executeQuery() throws SQLException { public QueryFuture executeQueryAsync(long timeOut, TimeUnit unit) throws SQLException { checkClosed(); checkExecutorClosed(); + build(); Status status = new Status(); - com._4paradigm.openmldb.QueryFuture queryFuture = router.CallSQLBatchRequestProcedure(db, spName, unit.toMillis(timeOut), currentRowBatch, status); + com._4paradigm.openmldb.QueryFuture queryFuture = router.CallSQLBatchRequestProcedure(db, deploymentName, unit.toMillis(timeOut), + meta.array(), meta.capacity(), result.array(), result.capacity(), status); if (status.getCode() != 0 || queryFuture == null) { String msg = status.ToString(); status.delete(); if (queryFuture != null) { queryFuture.delete(); } - throw new SQLException("call procedure fail, msg: " + msg); + throw new SQLException("call deployment failed, msg: " + msg); } status.delete(); - return new QueryFuture(queryFuture); + clearParameters(); + return new QueryFuture(queryFuture, deployment.getOutputSchema(), deployment.getOutputMetaData()); } @Override public void addBatch() throws SQLException { - dataBuild(); - if (!this.currentRow.OK()) { - throw new RuntimeException("not ok row"); + if (!rowBuilder.build()) { + throw new SQLException("failed to encode data"); } - currentRowBatch.AddRow(this.currentRow); - this.currentRow.delete(); - Status status = new Status(); - this.currentRow = router.GetRequestRow(db, currentSql, status); - if (status.getCode() != 0 || this.currentRow == null) { - String msg = status.ToString(); - status.delete(); - throw new SQLException("getRequestRow failed!, msg: " + msg); - } - status.delete(); + ByteBuffer buf = rowBuilder.getValue(); + datas.add(buf); + totalSize += buf.capacity(); + rowBuilder.clear(); } @Override public void clearBatch() throws SQLException { - currentRowBatch.Clear(); + clearParameters(); } @Override @@ -110,15 +129,91 @@ public int[] executeBatch() throws SQLException { } @Override - public void close() throws SQLException { - super.close(); - if (commonColumnIndices != null) { - commonColumnIndices.delete(); - commonColumnIndices = null; + public void clearParameters() { + datas.clear(); + rowBuilder.clear(); + result = null; + meta = null; + totalSize = 0; + } + + @Override + public void setNull(int i, int i1) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setNULL(realIdx)) { + throw new SQLException("set null failed. idx is " + i); + } + } + + @Override + public void setBoolean(int i, boolean b) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setBool(realIdx, b)) { + throw new SQLException("set bool failed. idx is " + i); + } + } + + @Override + public void setShort(int i, short i1) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setSmallInt(realIdx, i1)) { + throw new SQLException("set short failed. idx is " + i); } - if (currentRowBatch != null) { - currentRowBatch.delete(); - currentRowBatch = null; + } + + @Override + public void setInt(int i, int i1) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setInt(realIdx, i1)) { + throw new SQLException("set int failed. idx is " + i); + } + } + + @Override + public void setLong(int i, long l) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setBigInt(realIdx, l)) { + throw new SQLException("set long failed. idx is " + i); + } + } + + @Override + public void setFloat(int i, float v) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setFloat(realIdx, v)) { + throw new SQLException("set float failed. idx is " + i); + } + } + + @Override + public void setDouble(int i, double v) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setDouble(realIdx, v)) { + throw new SQLException("set double failed. idx is " + i); + } + } + + @Override + public void setDate(int i, java.sql.Date date) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setDate(realIdx, date)) { + throw new SQLException("set date failed. idx is " + i); + } + } + + @Override + public void setTimestamp(int i, Timestamp timestamp) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setTimestamp(realIdx, timestamp)) { + throw new SQLException("set timestamp failed. idx is " + i); + } + } + + @Override + public void setString(int i, String s) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setString(realIdx, s)) { + throw new SQLException("set string failed. idx is " + i); } } } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/BatchRequestPreparedStatementImpl.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/BatchRequestPreparedStatementImpl.java index ae6060326b0..5f3ae1f696e 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/BatchRequestPreparedStatementImpl.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/BatchRequestPreparedStatementImpl.java @@ -63,7 +63,7 @@ public SQLResultSet executeQuery() throws SQLException { throw new SQLException("execute sql fail: " + msg); } status.delete(); - SQLResultSet rs = new SQLResultSet(resultSet); + SQLResultSet rs = new NativeResultSet(resultSet); if (closeOnComplete) { closed = true; } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/CallableDirectResultSet.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/CallableDirectResultSet.java new file mode 100644 index 00000000000..03d691b2170 --- /dev/null +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/CallableDirectResultSet.java @@ -0,0 +1,36 @@ +package com._4paradigm.openmldb.sdk.impl; + +import com._4paradigm.openmldb.common.codec.CodecMetaData; +import com._4paradigm.openmldb.common.codec.RowView; +import com._4paradigm.openmldb.jdbc.DirectResultSet; +import com._4paradigm.openmldb.sdk.Schema; + +import java.nio.ByteBuffer; +import java.sql.SQLException; + +public class CallableDirectResultSet extends DirectResultSet { + private int position = 0; + + public CallableDirectResultSet(ByteBuffer buf, int totalRows, Schema schema, CodecMetaData metaData) { + super(buf, totalRows, schema); + rowView = new RowView(metaData); + } + + @Override + public boolean next() throws SQLException { + if (closed) { + return false; + } + if (rowNum < totalRows && position < buf.capacity()) { + buf.position(position); + int rowLength = buf.getInt(position + 2); + position += rowLength; + if (position > buf.capacity()) { + return false; + } + rowNum++; + return rowView.reset(buf.slice(), rowLength); + } + return false; + } +} diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/CallablePreparedStatementImpl.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/CallablePreparedStatementImpl.java index c5cbaca4075..6178100b77b 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/CallablePreparedStatementImpl.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/CallablePreparedStatementImpl.java @@ -18,26 +18,39 @@ import com._4paradigm.openmldb.SQLRouter; import com._4paradigm.openmldb.Status; +import com._4paradigm.openmldb.common.codec.CodecUtil; +import com._4paradigm.openmldb.common.codec.FlexibleRowBuilder; import com._4paradigm.openmldb.jdbc.CallablePreparedStatement; -import com._4paradigm.openmldb.jdbc.SQLResultSet; import com._4paradigm.openmldb.sdk.QueryFuture; +import java.nio.ByteBuffer; +import java.nio.ByteOrder; +import java.sql.ResultSet; import java.sql.SQLException; +import java.sql.Timestamp; import java.util.concurrent.TimeUnit; public class CallablePreparedStatementImpl extends CallablePreparedStatement { + private int routerCol; + private String routerValue = ""; - public CallablePreparedStatementImpl(String db, String spName, SQLRouter router) throws SQLException { - super(db, spName, router); + public CallablePreparedStatementImpl(Deployment deployment, SQLRouter router) throws SQLException { + super(deployment, router); + rowBuilder = new FlexibleRowBuilder(deployment.getInputMetaData()); + routerCol = deployment.getRouterCol(); } @Override - public SQLResultSet executeQuery() throws SQLException { + public ResultSet executeQuery() throws SQLException { checkClosed(); checkExecutorClosed(); - dataBuild(); + if (!rowBuilder.build()) { + throw new SQLException("failed to encode data"); + } + ByteBuffer buf = rowBuilder.getValue(); Status status = new Status(); - com._4paradigm.openmldb.ResultSet resultSet = router.CallProcedure(db, spName, currentRow, status); + com._4paradigm.openmldb.ResultSet resultSet = router.CallProcedure(db, deploymentName, + buf.array(), buf.capacity(), routerValue, status); if (status.getCode() != 0 || resultSet == null) { String msg = status.ToString(); status.delete(); @@ -47,7 +60,13 @@ public SQLResultSet executeQuery() throws SQLException { throw new SQLException("call procedure fail, msg: " + msg); } status.delete(); - SQLResultSet rs = new SQLResultSet(resultSet); + int totalRows = resultSet.Size(); + int dataLength = resultSet.GetDataLength(); + ByteBuffer dataBuf = ByteBuffer.allocate(dataLength).order(ByteOrder.LITTLE_ENDIAN); + resultSet.CopyTo(dataBuf.array()); + resultSet.delete(); + ResultSet rs = new CallableDirectResultSet(dataBuf, totalRows, deployment.getOutputSchema(), deployment.getOutputMetaData()); + clearParameters(); if (closeOnComplete) { closed = true; } @@ -58,9 +77,13 @@ public SQLResultSet executeQuery() throws SQLException { public QueryFuture executeQueryAsync(long timeOut, TimeUnit unit) throws SQLException { checkClosed(); checkExecutorClosed(); - dataBuild(); + if (!rowBuilder.build()) { + throw new SQLException("failed to encode data"); + } + ByteBuffer buf = rowBuilder.getValue(); Status status = new Status(); - com._4paradigm.openmldb.QueryFuture queryFuture = router.CallProcedure(db, spName, unit.toMillis(timeOut), currentRow, status); + com._4paradigm.openmldb.QueryFuture queryFuture = router.CallProcedure(db, deploymentName, + unit.toMillis(timeOut), buf.array(), buf.capacity(), routerValue, status); if (status.getCode() != 0 || queryFuture == null) { String msg = status.ToString(); status.delete(); @@ -70,7 +93,115 @@ public QueryFuture executeQueryAsync(long timeOut, TimeUnit unit) throws SQLExce throw new SQLException("call procedure fail, msg: " + msg); } status.delete(); - return new QueryFuture(queryFuture); + clearParameters(); + return new QueryFuture(queryFuture, deployment.getOutputSchema(), deployment.getOutputMetaData()); + } + + @Override + public void clearParameters() { + rowBuilder.clear(); + routerValue = ""; + } + + @Override + public void setNull(int i, int i1) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setNULL(realIdx)) { + throw new SQLException("set null failed. idx is " + i); + } + } + + @Override + public void setBoolean(int i, boolean b) throws SQLException { + int realIdx = i - 1; + if (realIdx == routerCol) { + routerValue = String.valueOf(b); + } + if (!rowBuilder.setBool(realIdx, b)) { + throw new SQLException("set bool failed. idx is " + i); + } + } + + @Override + public void setShort(int i, short i1) throws SQLException { + int realIdx = i - 1; + if (realIdx == routerCol) { + routerValue = String.valueOf(i1); + } + if (!rowBuilder.setSmallInt(realIdx, i1)) { + throw new SQLException("set short failed. idx is " + i); + } + } + + @Override + public void setInt(int i, int i1) throws SQLException { + int realIdx = i - 1; + if (realIdx == routerCol) { + routerValue = String.valueOf(i1); + } + if (!rowBuilder.setInt(realIdx, i1)) { + throw new SQLException("set int failed. idx is " + i); + } + } + + @Override + public void setLong(int i, long l) throws SQLException { + int realIdx = i - 1; + if (realIdx == routerCol) { + routerValue = String.valueOf(l); + } + if (!rowBuilder.setBigInt(realIdx, l)) { + throw new SQLException("set long failed. idx is " + i); + } + } + + @Override + public void setFloat(int i, float v) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setFloat(realIdx, v)) { + throw new SQLException("set float failed. idx is " + i); + } + } + + @Override + public void setDouble(int i, double v) throws SQLException { + int realIdx = i - 1; + if (!rowBuilder.setDouble(realIdx, v)) { + throw new SQLException("set double failed. idx is " + i); + } + } + + @Override + public void setDate(int i, java.sql.Date date) throws SQLException { + int realIdx = i - 1; + if (realIdx == routerCol) { + routerValue = String.valueOf(CodecUtil.dateToDateInt(date)); + } + if (!rowBuilder.setDate(realIdx, date)) { + throw new SQLException("set date failed. idx is " + i); + } + } + + @Override + public void setTimestamp(int i, Timestamp timestamp) throws SQLException { + int realIdx = i - 1; + if (realIdx == routerCol) { + routerValue = String.valueOf(timestamp.getTime()); + } + if (!rowBuilder.setTimestamp(realIdx, timestamp)) { + throw new SQLException("set timestamp failed. idx is " + i); + } + } + + @Override + public void setString(int i, String s) throws SQLException { + int realIdx = i - 1; + if (realIdx == routerCol) { + routerValue = s; + } + if (!rowBuilder.setString(realIdx, s)) { + throw new SQLException("set string failed. idx is " + i); + } } } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/Deployment.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/Deployment.java new file mode 100644 index 00000000000..4f25496b5d7 --- /dev/null +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/Deployment.java @@ -0,0 +1,73 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.sdk.impl; + +import com._4paradigm.openmldb.common.codec.CodecMetaData; +import com._4paradigm.openmldb.sdk.Common; +import com._4paradigm.openmldb.sdk.Schema; +import com._4paradigm.openmldb.sdk.ProcedureInfo; + +public class Deployment { + + private CodecMetaData inputMetaData; + private CodecMetaData outputMetaData; + private ProcedureInfo proInfo; + + public Deployment(com._4paradigm.openmldb.proto.SQLProcedure.ProcedureInfo info) throws Exception { + proInfo = Common.convertProcedureInfo(info); + inputMetaData = new CodecMetaData(info.getInputSchemaList(), false); + outputMetaData = new CodecMetaData(info.getOutputSchemaList(), true); + } + + public Deployment(ProcedureInfo procedureInfo) throws Exception { + proInfo = procedureInfo; + inputMetaData = new CodecMetaData(Common.convert2ProtoSchema(procedureInfo.getInputSchema()), false); + outputMetaData = new CodecMetaData(Common.convert2ProtoSchema(procedureInfo.getOutputSchema()), true); + } + + public CodecMetaData getInputMetaData() { + return inputMetaData; + } + + public CodecMetaData getOutputMetaData() { + return outputMetaData; + } + + public int getRouterCol() { + return proInfo.getRouterCol(); + } + + public String getDatabase() { + return proInfo.getDbName(); + } + + public String getName() { + return proInfo.getProName(); + } + + public String getSQL() { + return proInfo.getSql(); + } + + public Schema getInputSchema() { + return proInfo.getInputSchema(); + } + + public Schema getOutputSchema() { + return proInfo.getOutputSchema(); + } +} diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/DeploymentManager.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/DeploymentManager.java new file mode 100644 index 00000000000..9dc73868f5e --- /dev/null +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/DeploymentManager.java @@ -0,0 +1,101 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.sdk.impl; + +import com._4paradigm.openmldb.common.zk.ZKClient; +import com._4paradigm.openmldb.sdk.SqlException; +import org.apache.curator.framework.recipes.cache.NodeCache; +import org.apache.curator.framework.recipes.cache.NodeCacheListener; +import com._4paradigm.openmldb.proto.SQLProcedure; +import com._4paradigm.openmldb.proto.Type; +import org.xerial.snappy.Snappy; + +import java.util.*; +import java.util.concurrent.ConcurrentHashMap; + +public class DeploymentManager { + + private Map, Deployment> deployments = new ConcurrentHashMap<>(); + private ZKClient zkClient; + private NodeCache nodeCache; + private String spPath; + + public DeploymentManager(ZKClient zkClient) throws SqlException { + this.zkClient = zkClient; + if (zkClient != null) { + spPath = zkClient.getConfig().getNamespace() + "/store_procedure/db_sp_data"; + nodeCache = new NodeCache(zkClient.getClient(), zkClient.getConfig().getNamespace() + "/table/notify"); + try { + parseAllDeployment(); + nodeCache.start(); + nodeCache.getListenable().addListener(new NodeCacheListener() { + @Override + public void nodeChanged() throws Exception { + parseAllDeployment(); + } + }); + } catch (Exception e) { + throw new SqlException("start NodeCache failed. " + e.getMessage()); + } + } + } + + public void parseAllDeployment() throws Exception { + if (!zkClient.checkExists(spPath)) { + return; + } + List children = zkClient.getChildren(spPath); + Set> curDeployments = new HashSet<>(); + for (String path : children) { + byte[] bytes = zkClient.getClient().getData().forPath(spPath + "/" + path); + byte[] data = Snappy.uncompress(bytes); + SQLProcedure.ProcedureInfo procedureInfo = SQLProcedure.ProcedureInfo.parseFrom(data); + Deployment deployment = getDeployment(procedureInfo.getDbName(), procedureInfo.getSpName()); + if (deployment != null) { + if (deployment.getSQL().equals(procedureInfo.getSql())) { + continue; + } + } + deployment = new Deployment(procedureInfo); + AbstractMap.SimpleImmutableEntry key = + new AbstractMap.SimpleImmutableEntry<>(procedureInfo.getDbName(), procedureInfo.getSpName()); + addDeployment(key, deployment); + curDeployments.add(key); + } + if (deployments.size() > children.size()) { + Iterator> iterator = deployments.keySet().iterator(); + while (iterator.hasNext()) { + AbstractMap.SimpleImmutableEntry key = iterator.next(); + if (!curDeployments.contains(key)) { + iterator.remove(); + } + } + } + } + + public Deployment getDeployment(String db, String name) { + return deployments.get(new AbstractMap.SimpleImmutableEntry<>(db, name)); + } + + public void addDeployment(String db, String name, Deployment deployment) { + addDeployment(new AbstractMap.SimpleImmutableEntry<>(db, name), deployment); + } + + public void addDeployment(AbstractMap.SimpleImmutableEntry key, Deployment deployment) { + deployments.put(key, deployment); + } +} diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/NativeResultSet.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/NativeResultSet.java new file mode 100644 index 00000000000..482ce4db72c --- /dev/null +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/NativeResultSet.java @@ -0,0 +1,184 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com._4paradigm.openmldb.sdk.impl; + +import com._4paradigm.openmldb.jdbc.SQLResultSet; +import com._4paradigm.openmldb.sdk.Common; +import java.sql.*; + +public class NativeResultSet extends SQLResultSet { + private com._4paradigm.openmldb.ResultSet resultSet; + + public NativeResultSet(com._4paradigm.openmldb.ResultSet resultSet) { + this.resultSet = resultSet; + if (resultSet != null) { + totalRows = resultSet.Size(); + try { + this.schema = Common.convertSchema(resultSet.GetSchema()); + } catch (Exception e) { + e.printStackTrace(); + } + } + } + + private void check(int i, int type) throws SQLException { + checkIdx(i); + checkDataType(i, type); + } + + private void checkClosed() throws SQLException { + if (closed) { + throw new SQLException("resultset closed"); + } + } + + private void checkIdx(int i) throws SQLException { + if (i <= 0) { + throw new SQLException("index underflow"); + } + if (i > schema.size()) { + throw new SQLException("index overflow"); + } + } + + private void checkResultSetNull() throws SQLException{ + if (this.resultSet == null) { + throw new SQLException("resultset is null"); + } + } + + private void checkDataType(int i, int type) throws SQLException { + if (schema.getColumnType(i - 1) != type) { + throw new SQLException(String.format("data type not match, get %d and expect %d", + schema.getColumnType(i - 1), type)); + } + } + + @Override + public boolean next() throws SQLException { + checkClosed(); + checkResultSetNull(); + if (this.resultSet.Next()) { + this.rowNum++; + return true; + } else { + return false; + } + } + + @Override + public void close() throws SQLException { + if (resultSet != null) { + resultSet.delete(); + resultSet = null; + } + closed = true; + } + + @Override + public String getString(int i) throws SQLException { + check(i, Types.VARCHAR); + if (this.resultSet.IsNULL(i - 1)) { + return null; + } + return this.resultSet.GetStringUnsafe(i - 1); + } + + @Override + public boolean getBoolean(int i) throws SQLException { + check(i, Types.BOOLEAN); + if (this.resultSet.IsNULL(i - 1)) { + return false; + } + return this.resultSet.GetBoolUnsafe(i - 1); + } + + @Override + public short getShort(int i) throws SQLException { + check(i, Types.SMALLINT); + if (this.resultSet.IsNULL(i - 1)) { + return 0; + } + return this.resultSet.GetInt16Unsafe(i - 1); + } + + @Override + public int getInt(int i) throws SQLException { + check(i, Types.INTEGER); + if (this.resultSet.IsNULL(i - 1)) { + return 0; + } + return resultSet.GetInt32Unsafe(i - 1); + } + + @Override + public long getLong(int i) throws SQLException { + check(i, Types.BIGINT); + if (this.resultSet.IsNULL(i - 1)) { + return 0; + } + return this.resultSet.GetInt64Unsafe(i - 1); + } + + @Override + public float getFloat(int i) throws SQLException { + check(i, Types.FLOAT); + if (this.resultSet.IsNULL(i - 1)) { + return 0.0f; + } + return this.resultSet.GetFloatUnsafe(i - 1); + } + + @Override + public double getDouble(int i) throws SQLException { + check(i, Types.DOUBLE); + if (this.resultSet.IsNULL(i - 1)) { + return 0.0; + } + return resultSet.GetDoubleUnsafe(i - 1); + } + + @Override + public Date getDate(int i) throws SQLException { + check(i, Types.DATE); + if (this.resultSet.IsNULL(i - 1)) { + return null; + } + com._4paradigm.openmldb.Date date = this.resultSet.GetStructDateUnsafe(i - 1); + return new Date(date.getYear() - 1900, date.getMonth() - 1, date.getDay()); + } + + @Override + public Timestamp getTimestamp(int i) throws SQLException { + check(i, Types.TIMESTAMP); + if (this.resultSet.IsNULL(i - 1)) { + return null; + } + return new Timestamp(this.resultSet.GetTimeUnsafe(i -1)); + } + + @Override + public String getNString(int i) throws SQLException { + checkClosed(); + checkResultSetNull(); + checkIdx(i); + if (this.resultSet.IsNULL(i - 1)) { + return null; + } + return this.resultSet.GetAsStringUnsafe(i - 1); + } +} diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/PreparedStatementImpl.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/PreparedStatementImpl.java index 02da5e5de69..a7303312839 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/PreparedStatementImpl.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/PreparedStatementImpl.java @@ -16,14 +16,33 @@ package com._4paradigm.openmldb.sdk.impl; +import java.nio.charset.Charset; +import java.nio.charset.StandardCharsets; +import java.sql.ResultSetMetaData; import java.sql.SQLException; +import java.util.HashMap; +import java.util.Map; import java.util.TreeMap; import com._4paradigm.openmldb.DataType; import com._4paradigm.openmldb.SQLRouter; import com._4paradigm.openmldb.jdbc.PreparedStatement; +import com._4paradigm.openmldb.*; +import com._4paradigm.openmldb.jdbc.SQLResultSet; +import com._4paradigm.openmldb.jdbc.SQLResultSetMetaData; +import com._4paradigm.openmldb.sdk.Common; public class PreparedStatementImpl extends PreparedStatement { + private String db; + private String currentSql; + private SQLRequestRow currentRow; + private Schema currentSchema; + private TreeMap types; + private TreeMap orgTypes; + private TreeMap currentDatas; + private Map stringsLen = new HashMap<>(); + public static final Charset CHARSET = StandardCharsets.UTF_8; + public PreparedStatementImpl(String db, String sql, SQLRouter router) throws SQLException { if (db == null) throw new SQLException("db is null"); @@ -35,4 +54,236 @@ public PreparedStatementImpl(String db, String sql, SQLRouter router) throws SQL this.currentDatas = new TreeMap(); this.types = new TreeMap(); } + + private void checkNull() throws SQLException { + if (db == null) { + throw new SQLException("db is null"); + } + if (currentSql == null) { + throw new SQLException("sql is null"); + } + if (router == null) { + throw new SQLException("SQLRouter is null"); + } + if (currentDatas == null) { + throw new SQLException("currentDatas is null"); + } + if (types == null) { + throw new SQLException("currentDatas is null"); + } + } + + void checkIdx(int i) throws SQLException { + checkClosed(); + checkNull(); + if (i <= 0) { + throw new SQLException("index out of array"); + } + if (currentDatas.containsKey(i)) { + throw new SQLException("index duplicate, index: " + i + " already exist"); + } + } + + @Override + public SQLResultSet executeQuery() throws SQLException { + checkClosed(); + checkExecutorClosed(); + dataBuild(); + Status status = new Status(); + com._4paradigm.openmldb.ResultSet resultSet = router.ExecuteSQLParameterized(db, currentSql, currentRow, status); + if (resultSet == null || status.getCode() != 0) { + String msg = status.ToString(); + status.delete(); + if (resultSet != null) { + resultSet.delete(); + } + throw new SQLException("execute sql fail, msg: " + msg); + } + status.delete(); + SQLResultSet rs = new NativeResultSet(resultSet); + if (closeOnComplete) { + closed = true; + } + return rs; + } + + @Override + @Deprecated + public int executeUpdate() throws SQLException { + throw new SQLException("current do not support this method"); + } + + @Override + public void setNull(int parameterIndex, int sqlType) throws SQLException { + setNull(parameterIndex, Util.sqlTypeToDataType(sqlType)); + } + + private void setNull(int i, DataType type) throws SQLException { + checkIdx(i); + types.put(i, type); + currentDatas.put(i, null); + } + + @Override + public void setBoolean(int i, boolean b) throws SQLException { + checkIdx(i); + types.put(i, DataType.kTypeBool); + currentDatas.put(i, b); + } + + @Override + public void setShort(int i, short i1) throws SQLException { + checkIdx(i); + types.put(i, DataType.kTypeInt16); + currentDatas.put(i, i1); + } + + @Override + public void setInt(int i, int i1) throws SQLException { + checkIdx(i); + types.put(i, DataType.kTypeInt32); + currentDatas.put(i, i1); + } + + @Override + public void setLong(int i, long l) throws SQLException { + checkIdx(i); + types.put(i, DataType.kTypeInt64); + currentDatas.put(i, l); + } + + @Override + public void setFloat(int i, float v) throws SQLException { + checkIdx(i); + types.put(i, DataType.kTypeFloat); + currentDatas.put(i, v); + } + + @Override + public void setDouble(int i, double v) throws SQLException { + checkIdx(i); + types.put(i, DataType.kTypeDouble); + currentDatas.put(i, v); + } + + @Override + public void setString(int i, String s) throws SQLException { + checkIdx(i); + if (s == null) { + setNull(i, DataType.kTypeString); + return; + } + types.put(i, DataType.kTypeString); + byte[] bytes = s.getBytes(CHARSET); + stringsLen.put(i, bytes.length); + currentDatas.put(i, bytes); + } + + @Override + public void setDate(int i, java.sql.Date date) throws SQLException { + checkIdx(i); + if (date == null) { + setNull(i, DataType.kTypeDate); + return; + } + types.put(i, DataType.kTypeDate); + currentDatas.put(i, date); + } + + @Override + public void setTimestamp(int i, java.sql.Timestamp timestamp) throws SQLException { + checkIdx(i); + if (timestamp == null) { + setNull(i, DataType.kTypeTimestamp); + return; + } + types.put(i, DataType.kTypeTimestamp); + long ts = timestamp.getTime(); + currentDatas.put(i, ts); + } + + @Override + public void clearParameters() { + currentDatas.clear(); + types.clear(); + stringsLen.clear(); + } + + protected void dataBuild() throws SQLException { + if (types == null) { + throw new SQLException("fail to build data when data types is null"); + } + // types has been updated + if (null == this.currentRow || orgTypes != types) { + if (types.firstKey() != 1 || types.lastKey() != types.size()) { + throw new SQLException("data not enough, indexes are " + currentDatas.keySet()); + } + ColumnTypes columnTypes = new ColumnTypes(); + for (int i = 0; i < types.size(); i++) { + columnTypes.AddColumnType(types.get(i + 1)); + } + this.currentRow = SQLRequestRow.CreateSQLRequestRowFromColumnTypes(columnTypes); + if (this.currentRow == null) { + throw new SQLException("fail to create sql request row from column types"); + } + this.currentSchema = this.currentRow.GetSchema(); + this.orgTypes = this.types; + } + if (this.currentSchema == null) { + throw new SQLException("fail to build data with null schema"); + } + int strLen = 0; + for (Map.Entry entry : stringsLen.entrySet()) { + strLen += entry.getValue(); + } + boolean ok = this.currentRow.Init(strLen); + if (!ok) { + throw new SQLException("build data row failed"); + } + for (int i = 0; i < this.currentSchema.GetColumnCnt(); i++) { + DataType dataType = this.currentSchema.GetColumnType(i); + Object data = this.currentDatas.get(i + 1); + if (data == null) { + ok = this.currentRow.AppendNULL(); + } else { + if (DataType.kTypeBool.equals(dataType)) { + ok = this.currentRow.AppendBool((boolean) data); + } else if (DataType.kTypeDate.equals(dataType)) { + java.sql.Date date = (java.sql.Date) data; + ok = this.currentRow.AppendDate(date.getYear() + 1900, date.getMonth() + 1, date.getDate()); + } else if (DataType.kTypeDouble.equals(dataType)) { + ok = this.currentRow.AppendDouble((double) data); + } else if (DataType.kTypeFloat.equals(dataType)) { + ok = this.currentRow.AppendFloat((float) data); + } else if (DataType.kTypeInt16.equals(dataType)) { + ok = this.currentRow.AppendInt16((short) data); + } else if (DataType.kTypeInt32.equals(dataType)) { + ok = this.currentRow.AppendInt32((int) data); + } else if (DataType.kTypeInt64.equals(dataType)) { + ok = this.currentRow.AppendInt64((long) data); + } else if (DataType.kTypeString.equals(dataType)) { + byte[] bdata = (byte[]) data; + ok = this.currentRow.AppendString(bdata, bdata.length); + } else if (DataType.kTypeTimestamp.equals(dataType)) { + ok = this.currentRow.AppendTimestamp((long) data); + } else { + throw new SQLException("unkown data type " + dataType.toString()); + } + } + if (!ok) { + throw new SQLException("append data failed, idx is " + i); + } + } + if (!this.currentRow.Build()) { + throw new SQLException("build request row failed"); + } + clearParameters(); + } + + @Override + public ResultSetMetaData getMetaData() throws SQLException { + checkClosed(); + checkNull(); + return new SQLResultSetMetaData(Common.convertSchema(this.currentSchema)); + } } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/SqlClusterExecutor.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/SqlClusterExecutor.java index 42d4a760171..7d32ac092af 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/SqlClusterExecutor.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/SqlClusterExecutor.java @@ -36,15 +36,11 @@ import com._4paradigm.openmldb.VectorString; import com._4paradigm.openmldb.common.LibraryLoader; import com._4paradigm.openmldb.common.Pair; +import com._4paradigm.openmldb.common.zk.ZKClient; +import com._4paradigm.openmldb.common.zk.ZKConfig; import com._4paradigm.openmldb.jdbc.CallablePreparedStatement; -import com._4paradigm.openmldb.jdbc.SQLResultSet; import com._4paradigm.openmldb.proto.NS; -import com._4paradigm.openmldb.sdk.Column; -import com._4paradigm.openmldb.sdk.Common; -import com._4paradigm.openmldb.sdk.Schema; -import com._4paradigm.openmldb.sdk.SdkOption; -import com._4paradigm.openmldb.sdk.SqlException; -import com._4paradigm.openmldb.sdk.SqlExecutor; +import com._4paradigm.openmldb.sdk.*; import com._4paradigm.openmldb.sql_router_sdk; import org.slf4j.Logger; import org.slf4j.LoggerFactory; @@ -64,6 +60,8 @@ public class SqlClusterExecutor implements SqlExecutor { private static final AtomicBoolean initialized = new AtomicBoolean(false); private SQLRouter sqlRouter; + private DeploymentManager deploymentManager; + private ZKClient zkClient; public SqlClusterExecutor(SdkOption option, String libraryPath) throws SqlException { initJavaSdkLibrary(libraryPath); @@ -72,6 +70,18 @@ public SqlClusterExecutor(SdkOption option, String libraryPath) throws SqlExcept SQLRouterOptions sqlOpt = option.buildSQLRouterOptions(); this.sqlRouter = sql_router_sdk.NewClusterSQLRouter(sqlOpt); sqlOpt.delete(); + zkClient = new ZKClient(ZKConfig.builder() + .cluster(option.getZkCluster()) + .namespace(option.getZkPath()) + .sessionTimeout((int)option.getSessionTimeout()) + .build()); + try { + if (!zkClient.connect()) { + throw new SqlException("zk client connect failed."); + } + } catch (Exception e) { + throw new SqlException("init zk client failed. " + e.getMessage()); + } } else { StandaloneOptions sqlOpt = option.buildStandaloneOptions(); this.sqlRouter = sql_router_sdk.NewStandaloneSQLRouter(sqlOpt); @@ -80,6 +90,7 @@ public SqlClusterExecutor(SdkOption option, String libraryPath) throws SqlExcept if (sqlRouter == null) { throw new SqlException("fail to create sql executor"); } + deploymentManager = new DeploymentManager(zkClient); } public SqlClusterExecutor(SdkOption option) throws SqlException { @@ -151,7 +162,7 @@ public java.sql.ResultSet executeSQL(String db, String sql) { logger.error("executeSQL failed: {}", status.ToString()); } status.delete(); - return new SQLResultSet(rs); + return new NativeResultSet(rs); } @Override @@ -199,13 +210,33 @@ public PreparedStatement getBatchRequestPreparedStmt(String db, String sql, @Override public CallablePreparedStatement getCallablePreparedStmt(String db, String deploymentName) throws SQLException { - return new CallablePreparedStatementImpl(db, deploymentName, this.sqlRouter); + Deployment deployment = deploymentManager.getDeployment(db, deploymentName); + if (deployment == null) { + try { + ProcedureInfo procedureInfo = showProcedure(db, deploymentName); + deployment = new Deployment(procedureInfo); + deploymentManager.addDeployment(db, deploymentName, deployment); + } catch (Exception e) { + throw new SQLException("deployment does not exist. db name " + db + " deployment name " + deploymentName); + } + } + return new CallablePreparedStatementImpl(deployment, this.sqlRouter); } @Override public CallablePreparedStatement getCallablePreparedStmtBatch(String db, String deploymentName) throws SQLException { - return new BatchCallablePreparedStatementImpl(db, deploymentName, this.sqlRouter); + Deployment deployment = deploymentManager.getDeployment(db, deploymentName); + if (deployment == null) { + try { + ProcedureInfo procedureInfo = showProcedure(db, deploymentName); + deployment = new Deployment(procedureInfo); + deploymentManager.addDeployment(db, deploymentName, deployment); + } catch (Exception e) { + throw new SQLException("deployment does not exist. db name " + db + " deployment name " + deploymentName); + } + } + return new BatchCallablePreparedStatementImpl(deployment, this.sqlRouter); } @Override @@ -284,15 +315,7 @@ public com._4paradigm.openmldb.sdk.ProcedureInfo showProcedure(String dbName, St throw new SQLException("ShowProcedure failed: " + msg); } status.delete(); - com._4paradigm.openmldb.sdk.ProcedureInfo spInfo = new com._4paradigm.openmldb.sdk.ProcedureInfo(); - spInfo.setDbName(procedureInfo.GetDbName()); - spInfo.setProName(procedureInfo.GetSpName()); - spInfo.setSql(procedureInfo.GetSql()); - spInfo.setInputSchema(Common.convertSchema(procedureInfo.GetInputSchema())); - spInfo.setOutputSchema(Common.convertSchema(procedureInfo.GetOutputSchema())); - spInfo.setMainTable(procedureInfo.GetMainTable()); - spInfo.setInputTables(procedureInfo.GetTables()); - spInfo.setInputDbs(procedureInfo.GetDbs()); + com._4paradigm.openmldb.sdk.ProcedureInfo spInfo = Common.convertProcedureInfo(procedureInfo); procedureInfo.delete(); return spInfo; } diff --git a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java index f761138cb49..dc520b74221 100644 --- a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java +++ b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java @@ -20,14 +20,12 @@ import com._4paradigm.openmldb.sdk.SqlExecutor; import com._4paradigm.openmldb.sdk.impl.SqlClusterExecutor; -import java.sql.PreparedStatement; -import java.sql.ResultSet; -import java.sql.Date; -import java.sql.Timestamp; +import java.sql.*; import org.testng.Assert; import org.testng.annotations.Test; +import java.sql.PreparedStatement; import java.util.ArrayList; import java.util.List; import java.util.Random; @@ -129,6 +127,96 @@ public void testRequest() { } } + @Test + public void testDeploymentRequest() { + java.sql.Statement state = executor.getStatement(); + String dbname = "db" + random.nextInt(100000); + String deploymentName = "dp_test1"; + try { + state.execute("drop database if exists " + dbname + ";"); + state.execute("create database " + dbname + ";"); + state.execute("use " + dbname + ";"); + String createTableSql = "create table trans(c1 string,\n" + + " c3 int,\n" + + " c4 bigint,\n" + + " c5 float,\n" + + " c6 double,\n" + + " c7 timestamp,\n" + + " c8 date,\n" + + " index(key=c1, ts=c7));"; + state.execute(createTableSql); + String selectSql = "SELECT c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM trans WINDOW w1 AS " + + "(PARTITION BY trans.c1 ORDER BY trans.c7 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW);"; + String deploySql = "DEPLOY " + deploymentName + " " + selectSql; + state.execute(deploySql); + } catch (SQLException e) { + e.printStackTrace(); + Assert.fail(); + } + String insertSql = "insert into trans values(\"aa\",23,33,1.4,2.4,1590738993000,\"2020-05-04\");"; + PreparedStatement pstmt = null; + try { + pstmt = executor.getInsertPreparedStmt(dbname, insertSql); + Assert.assertTrue(pstmt.execute()); + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } finally { + if (pstmt != null) { + try { + pstmt.close(); + } catch (Exception throwables) { + throwables.printStackTrace(); + } + } + } + + ResultSet resultSet = null; + try { + Thread.sleep(1000); + pstmt = executor.getCallablePreparedStmt(dbname, deploymentName); + + pstmt.setString(1, "bb"); + pstmt.setInt(2, 24); + pstmt.setLong(3, 34l); + pstmt.setFloat(4, 1.5f); + pstmt.setDouble(5, 2.5); + pstmt.setTimestamp(6, new Timestamp(1590738994000l)); + pstmt.setDate(7, Date.valueOf("2020-05-05")); + + resultSet = pstmt.executeQuery(); + + Assert.assertEquals(resultSet.getMetaData().getColumnCount(), 3); + Assert.assertTrue(resultSet.next()); + Assert.assertEquals(resultSet.getString(1), "bb"); + Assert.assertEquals(resultSet.getInt(2), 24); + Assert.assertEquals(resultSet.getLong(3), 34); + Assert.assertFalse(resultSet.next()); + + state.execute("drop deployment " + deploymentName + ";"); + String drop = "drop table trans;"; + boolean ok = executor.executeDDL(dbname, drop); + Assert.assertTrue(ok); + ok = executor.dropDB(dbname); + Assert.assertTrue(ok); + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } finally { + try { + state.close(); + if (resultSet != null) { + resultSet.close(); + } + if (pstmt != null) { + pstmt.close(); + } + } catch (Exception throwables) { + throwables.printStackTrace(); + } + } + } + @Test public void testBatchRequest() { String dbname = "db" + random.nextInt(100000); @@ -213,4 +301,101 @@ public void testBatchRequest() { } } } + + @Test + public void testDeploymentBatchRequest() { + java.sql.Statement state = executor.getStatement(); + String dbname = "db" + random.nextInt(100000); + String deploymentName = "dp_test1"; + try { + state.execute("drop database if exists " + dbname + ";"); + state.execute("create database " + dbname + ";"); + state.execute("use " + dbname + ";"); + String createTableSql = "create table trans(c1 string,\n" + + " c3 int,\n" + + " c4 bigint,\n" + + " c5 float,\n" + + " c6 double,\n" + + " c7 timestamp,\n" + + " c8 date,\n" + + " index(key=c1, ts=c7));"; + state.execute(createTableSql); + String selectSql = "SELECT c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM trans WINDOW w1 AS " + + "(PARTITION BY trans.c1 ORDER BY trans.c7 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW);"; + String deploySql = "DEPLOY " + deploymentName + " " + selectSql; + state.execute(deploySql); + } catch (SQLException e) { + e.printStackTrace(); + Assert.fail(); + } + String insertSql = "insert into trans values(\"aa\",23,33,1.4,2.4,1590738993000,\"2020-05-04\");"; + PreparedStatement pstmt = null; + try { + pstmt = executor.getInsertPreparedStmt(dbname, insertSql); + Assert.assertTrue(pstmt.execute()); + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } finally { + if (pstmt != null) { + try { + pstmt.close(); + } catch (Exception throwables) { + throwables.printStackTrace(); + } + } + } + + ResultSet resultSet = null; + try { + Thread.sleep(1000); + pstmt = executor.getCallablePreparedStmtBatch(dbname, deploymentName); + + int batchSize = 5; + for (int idx = 0; idx < batchSize; idx++) { + pstmt.setString(1, "bb"); + pstmt.setInt(2, 24); + pstmt.setLong(3, 34l); + pstmt.setFloat(4, 1.5f); + pstmt.setDouble(5, 2.5); + pstmt.setTimestamp(6, new Timestamp(1590738994000l + idx)); + pstmt.setDate(7, Date.valueOf("2020-05-05")); + pstmt.addBatch(); + } + + resultSet = pstmt.executeQuery(); + + Assert.assertEquals(resultSet.getMetaData().getColumnCount(), 3); + int resultNum = 0; + while (resultSet.next()) { + Assert.assertEquals(resultSet.getString(1), "bb"); + Assert.assertEquals(resultSet.getInt(2), 24); + Assert.assertEquals(resultSet.getLong(3), 34); + resultNum++; + } + Assert.assertEquals(resultNum, batchSize); + + state.execute("drop deployment " + deploymentName + ";"); + String drop = "drop table trans;"; + boolean ok = executor.executeDDL(dbname, drop); + Assert.assertTrue(ok); + ok = executor.dropDB(dbname); + Assert.assertTrue(ok); + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } finally { + try { + state.close(); + if (resultSet != null) { + resultSet.close(); + } + if (pstmt != null) { + pstmt.close(); + } + } catch (Exception throwables) { + throwables.printStackTrace(); + } + } + } } diff --git a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/SQLRouterSmokeTest.java b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/SQLRouterSmokeTest.java index 61945b0740d..b8f54bfa5ca 100644 --- a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/SQLRouterSmokeTest.java +++ b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/SQLRouterSmokeTest.java @@ -128,12 +128,11 @@ public void testSmoke(SqlExecutor router) { // select String select1 = "select * from tsql1010;"; - com._4paradigm.openmldb.jdbc.SQLResultSet rs1 = (com._4paradigm.openmldb.jdbc.SQLResultSet) router - .executeSQL(dbname, select1); + SQLResultSet rs1 = (SQLResultSet) router .executeSQL(dbname, select1); - Assert.assertEquals(2, rs1.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs1.GetInternalSchema().GetColumnType(0).toString()); - Assert.assertEquals("kTypeString", rs1.GetInternalSchema().GetColumnType(1).toString()); + Assert.assertEquals(2, rs1.GetInternalSchema().getColumnList().size()); + Assert.assertEquals(Types.BIGINT, rs1.GetInternalSchema().getColumnType(0)); + Assert.assertEquals(Types.VARCHAR, rs1.GetInternalSchema().getColumnType(1)); List col1Insert = new ArrayList<>(); List col2Insert = new ArrayList<>(); @@ -150,10 +149,9 @@ public void testSmoke(SqlExecutor router) { rs1.close(); String select2 = "select col1 from tsql1010;"; - com._4paradigm.openmldb.jdbc.SQLResultSet rs2 = (com._4paradigm.openmldb.jdbc.SQLResultSet) router - .executeSQL(dbname, select2); - Assert.assertEquals(1, rs2.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs2.GetInternalSchema().GetColumnType(0).toString()); + SQLResultSet rs2 = (SQLResultSet) router .executeSQL(dbname, select2); + Assert.assertEquals(1, rs2.GetInternalSchema().size()); + Assert.assertEquals(Types.BIGINT, rs2.GetInternalSchema().getColumnType(0)); List col1InsertRes = new ArrayList<>(); while (rs2.next()) { @@ -165,10 +163,9 @@ public void testSmoke(SqlExecutor router) { rs2.close(); String select3 = "select col2 from tsql1010;"; - com._4paradigm.openmldb.jdbc.SQLResultSet rs3 = (com._4paradigm.openmldb.jdbc.SQLResultSet) router - .executeSQL(dbname, select3); - Assert.assertEquals(1, rs3.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeString", rs3.GetInternalSchema().GetColumnType(0).toString()); + SQLResultSet rs3 = (SQLResultSet) router .executeSQL(dbname, select3); + Assert.assertEquals(1, rs3.GetInternalSchema().size()); + Assert.assertEquals(Types.VARCHAR, rs3.GetInternalSchema().getColumnType(0)); List col2InsertRes = new ArrayList<>(); while (rs3.next()) { @@ -185,11 +182,10 @@ public void testSmoke(SqlExecutor router) { { query_statement.setString(1, "hi"); query_statement.setLong(2, 1003); - com._4paradigm.openmldb.jdbc.SQLResultSet rs4 = (com._4paradigm.openmldb.jdbc.SQLResultSet) query_statement - .executeQuery(); - Assert.assertEquals(2, rs4.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs4.GetInternalSchema().GetColumnType(0).toString()); - Assert.assertEquals("kTypeString", rs4.GetInternalSchema().GetColumnType(1).toString()); + SQLResultSet rs4 = (SQLResultSet) query_statement .executeQuery(); + Assert.assertEquals(2, rs4.GetInternalSchema().size()); + Assert.assertEquals(Types.BIGINT, rs4.GetInternalSchema().getColumnType(0)); + Assert.assertEquals(Types.VARCHAR, rs4.GetInternalSchema().getColumnType(1)); Assert.assertTrue(rs4.next()); Assert.assertEquals(1002, rs4.getLong(1)); Assert.assertEquals("hi", rs4.getString(2)); @@ -200,11 +196,10 @@ public void testSmoke(SqlExecutor router) { { query_statement.setString(1, "hi"); query_statement.setLong(2, 1002); - com._4paradigm.openmldb.jdbc.SQLResultSet rs4 = (com._4paradigm.openmldb.jdbc.SQLResultSet) query_statement - .executeQuery(); - Assert.assertEquals(2, rs4.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs4.GetInternalSchema().GetColumnType(0).toString()); - Assert.assertEquals("kTypeString", rs4.GetInternalSchema().GetColumnType(1).toString()); + SQLResultSet rs4 = (SQLResultSet) query_statement .executeQuery(); + Assert.assertEquals(2, rs4.GetInternalSchema().size()); + Assert.assertEquals(Types.BIGINT, rs4.GetInternalSchema().getColumnType(0)); + Assert.assertEquals(Types.VARCHAR, rs4.GetInternalSchema().getColumnType(1)); Assert.assertFalse(rs4.next()); rs4.close(); } @@ -212,11 +207,10 @@ public void testSmoke(SqlExecutor router) { { query_statement.setString(1, "world"); query_statement.setLong(2, 1003); - com._4paradigm.openmldb.jdbc.SQLResultSet rs4 = (com._4paradigm.openmldb.jdbc.SQLResultSet) query_statement - .executeQuery(); - Assert.assertEquals(2, rs4.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs4.GetInternalSchema().GetColumnType(0).toString()); - Assert.assertEquals("kTypeString", rs4.GetInternalSchema().GetColumnType(1).toString()); + SQLResultSet rs4 = (SQLResultSet) query_statement .executeQuery(); + Assert.assertEquals(2, rs4.GetInternalSchema().size()); + Assert.assertEquals(Types.BIGINT, rs4.GetInternalSchema().getColumnType(0)); + Assert.assertEquals(Types.VARCHAR, rs4.GetInternalSchema().getColumnType(1)); Assert.assertTrue(rs4.next()); Assert.assertEquals(1001, rs4.getLong(1)); Assert.assertEquals("world", rs4.getString(2)); @@ -227,11 +221,10 @@ public void testSmoke(SqlExecutor router) { { query_statement.setString(1, "hello"); query_statement.setLong(2, 1003); - com._4paradigm.openmldb.jdbc.SQLResultSet rs4 = (com._4paradigm.openmldb.jdbc.SQLResultSet) query_statement - .executeQuery(); - Assert.assertEquals(2, rs4.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs4.GetInternalSchema().GetColumnType(0).toString()); - Assert.assertEquals("kTypeString", rs4.GetInternalSchema().GetColumnType(1).toString()); + SQLResultSet rs4 = (SQLResultSet) query_statement .executeQuery(); + Assert.assertEquals(2, rs4.GetInternalSchema().size()); + Assert.assertEquals(Types.BIGINT, rs4.GetInternalSchema().getColumnType(0)); + Assert.assertEquals(Types.VARCHAR, rs4.GetInternalSchema().getColumnType(1)); Assert.assertTrue(rs4.next()); Assert.assertEquals(1000, rs4.getLong(1)); Assert.assertEquals("hello", rs4.getString(2)); @@ -242,11 +235,10 @@ public void testSmoke(SqlExecutor router) { { query_statement.setString(1, "word"); query_statement.setLong(2, 1003); - com._4paradigm.openmldb.jdbc.SQLResultSet rs4 = (com._4paradigm.openmldb.jdbc.SQLResultSet) query_statement - .executeQuery(); - Assert.assertEquals(2, rs4.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs4.GetInternalSchema().GetColumnType(0).toString()); - Assert.assertEquals("kTypeString", rs4.GetInternalSchema().GetColumnType(1).toString()); + SQLResultSet rs4 = (SQLResultSet) query_statement .executeQuery(); + Assert.assertEquals(2, rs4.GetInternalSchema().size()); + Assert.assertEquals(Types.BIGINT, rs4.GetInternalSchema().getColumnType(0)); + Assert.assertEquals(Types.VARCHAR, rs4.GetInternalSchema().getColumnType(1)); Assert.assertFalse(rs4.next()); rs4.close(); } @@ -284,8 +276,7 @@ public void testParameterizedQueryFail(SqlExecutor router) { // missing 2nd parameter { query_statement.setString(1, "hi"); - com._4paradigm.openmldb.jdbc.SQLResultSet rs4 = (com._4paradigm.openmldb.jdbc.SQLResultSet) query_statement - .executeQuery(); + SQLResultSet rs4 = (SQLResultSet) query_statement .executeQuery(); Assert.fail("executeQuery is expected to throw exception"); rs4.close(); } @@ -426,14 +417,13 @@ public void testInsertPreparedState(SqlExecutor router) { Assert.assertTrue(ok); // select String select1 = "select * from tsql1010;"; - com._4paradigm.openmldb.jdbc.SQLResultSet rs1 = (com._4paradigm.openmldb.jdbc.SQLResultSet) router - .executeSQL(dbname, select1); - Assert.assertEquals(5, rs1.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs1.GetInternalSchema().GetColumnType(0).toString()); - Assert.assertEquals("kTypeDate", rs1.GetInternalSchema().GetColumnType(1).toString()); - Assert.assertEquals("kTypeString", rs1.GetInternalSchema().GetColumnType(2).toString()); - Assert.assertEquals("kTypeString", rs1.GetInternalSchema().GetColumnType(3).toString()); - Assert.assertEquals("kTypeInt32", rs1.GetInternalSchema().GetColumnType(4).toString()); + SQLResultSet rs1 = (SQLResultSet) router .executeSQL(dbname, select1); + Assert.assertEquals(5, rs1.GetInternalSchema().size()); + Assert.assertEquals(Types.BIGINT, rs1.GetInternalSchema().getColumnType(0)); + Assert.assertEquals(Types.DATE, rs1.GetInternalSchema().getColumnType(1)); + Assert.assertEquals(Types.VARCHAR, rs1.GetInternalSchema().getColumnType(2)); + Assert.assertEquals(Types.VARCHAR, rs1.GetInternalSchema().getColumnType(3)); + Assert.assertEquals(Types.INTEGER, rs1.GetInternalSchema().getColumnType(4)); while (rs1.next()) { int idx = rs1.getInt(5); int suffix = idx - 1; @@ -451,10 +441,9 @@ public void testInsertPreparedState(SqlExecutor router) { rs1.close(); String select2 = "select col1 from tsql1010;"; - com._4paradigm.openmldb.jdbc.SQLResultSet rs2 = (com._4paradigm.openmldb.jdbc.SQLResultSet) router - .executeSQL(dbname, select2); - Assert.assertEquals(1, rs2.GetInternalSchema().GetColumnCnt()); - Assert.assertEquals("kTypeInt64", rs2.GetInternalSchema().GetColumnType(0).toString()); + SQLResultSet rs2 = (SQLResultSet) router .executeSQL(dbname, select2); + Assert.assertEquals(1, rs2.GetInternalSchema().size()); + Assert.assertEquals(Types.BIGINT, rs2.GetInternalSchema().getColumnType(0)); rs2.close(); // drop table String drop = "drop table tsql1010;"; @@ -536,9 +525,8 @@ public void testInsertPreparedStateBatch(SqlExecutor router) { impl.executeBatch(); Assert.assertTrue(ok); String select1 = "select * from tsql1010;"; - com._4paradigm.openmldb.jdbc.SQLResultSet rs1 = (com._4paradigm.openmldb.jdbc.SQLResultSet) router - .executeSQL(dbname, select1); - Assert.assertEquals(6, rs1.GetInternalSchema().GetColumnCnt()); + SQLResultSet rs1 = (SQLResultSet) router .executeSQL(dbname, select1); + Assert.assertEquals(6, rs1.GetInternalSchema().size()); rs1.close(); i++; PreparedStatement impl2 = router.getInsertPreparedStmt(dbname, (String) batchData[i][0]); @@ -583,9 +571,8 @@ public void testInsertPreparedStateBatch(SqlExecutor router) { Assert.assertEquals(result, expected); String select2 = "select * from tsql1010;"; - com._4paradigm.openmldb.jdbc.SQLResultSet rs2 = (com._4paradigm.openmldb.jdbc.SQLResultSet) router - .executeSQL(dbname, select1); - Assert.assertEquals(6, rs2.GetInternalSchema().GetColumnCnt()); + SQLResultSet rs2 = (SQLResultSet) router .executeSQL(dbname, select1); + Assert.assertEquals(6, rs2.GetInternalSchema().size()); int recordCnt = 0; while (rs2.next()) { recordCnt++; diff --git a/java/openmldb-spark-connector/pom.xml b/java/openmldb-spark-connector/pom.xml index f8d2e31d9f2..3f79972c60a 100644 --- a/java/openmldb-spark-connector/pom.xml +++ b/java/openmldb-spark-connector/pom.xml @@ -57,8 +57,13 @@ spark-sql_${scala.binary.version} ${spark.version} ${spark.dependencyScope} + + + com.google.protobuf + protobuf-java + + - com.4paradigm.openmldb openmldb-jdbc diff --git a/src/catalog/base.cc b/src/catalog/base.cc index 7aec1102cb8..2320025fe40 100644 --- a/src/catalog/base.cc +++ b/src/catalog/base.cc @@ -45,6 +45,9 @@ ProcedureInfoImpl::ProcedureInfoImpl(const ::openmldb::api::ProcedureInfo& proce for (const auto& op : procedure.options()) { options_[op.name()] = op.value().value(); } + if (procedure.router_col_size() > 0) { + router_col_ = procedure.router_col(0); + } } } // namespace catalog diff --git a/src/catalog/base.h b/src/catalog/base.h index 87fd8da65e5..631e3fd5bf8 100644 --- a/src/catalog/base.h +++ b/src/catalog/base.h @@ -63,6 +63,10 @@ class ProcedureInfoImpl : public hybridse::sdk::ProcedureInfo { return &options_; } + int GetRouterCol() const override { + return router_col_; + } + private: std::string db_name_; std::string sp_name_; @@ -75,6 +79,7 @@ class ProcedureInfoImpl : public hybridse::sdk::ProcedureInfo { std::string main_db_; ::hybridse::sdk::ProcedureType type_; std::unordered_map options_; + int router_col_ = -1; }; } // namespace catalog diff --git a/src/catalog/tablet_catalog.cc b/src/catalog/tablet_catalog.cc index 7f470703b6c..a9e74ff7061 100644 --- a/src/catalog/tablet_catalog.cc +++ b/src/catalog/tablet_catalog.cc @@ -359,15 +359,24 @@ bool TabletCatalog::AddTable(const ::openmldb::api::TableMeta& meta, } const std::string& table_name = meta.name(); auto it = db_it->second.find(table_name); - if (it == db_it->second.end()) { + if (it != db_it->second.end()) { + if (it->second->GetTid() < static_cast(meta.tid())) { + db_it->second.erase(it); + } else if (it->second->GetTid() > static_cast(meta.tid())) { + LOG(WARNING) << "current tid " << it->second->GetTid() << " is greater than new table info tid " + << meta.tid(); + return false; + } else { + handler = it->second; + } + } + if (!handler) { handler = std::make_shared(meta, local_tablet_); if (!handler->Init(client_manager_)) { LOG(WARNING) << "tablet handler init failed"; return false; } db_it->second.emplace(table_name, handler); - } else { - handler = it->second; } handler->AddTable(table); return true; @@ -383,7 +392,7 @@ bool TabletCatalog::AddDB(const ::hybridse::type::Database& db) { return true; } -bool TabletCatalog::DeleteTable(const std::string& db, const std::string& table_name, uint32_t pid) { +bool TabletCatalog::DeleteTable(const std::string& db, const std::string& table_name, uint32_t tid, uint32_t pid) { std::lock_guard<::openmldb::base::SpinMutex> spin_lock(mu_); auto db_it = tables_.find(db); if (db_it == tables_.end()) { @@ -393,7 +402,11 @@ bool TabletCatalog::DeleteTable(const std::string& db, const std::string& table_ if (it == db_it->second.end()) { return false; } - LOG(INFO) << "delete table from catalog. db " << db << ", name " << table_name << ", pid " << pid; + if (it->second->GetTid() > tid) { + LOG(WARNING) << "delete failed. current tid " << it->second->GetTid() << " is greater than " << tid; + return false; + } + LOG(INFO) << "delete table from catalog. db " << db << " name " << table_name << " tid " << tid << " pid " << pid; if (it->second->DeleteTable(pid) < 1) { db_it->second.erase(it); } @@ -450,6 +463,9 @@ bool TabletCatalog::UpdateTableMeta(const ::openmldb::api::TableMeta& meta) { if (it == db_it->second.end()) { LOG(WARNING) << "table " << table_name << " does not exist in db " << db_name; return false; + } else if (it->second->GetTid() != static_cast(meta.tid())) { + LOG(WARNING) << "tid is not match. tid " << it->second->GetTid() << " new tid " << meta.tid(); + return false; } else { handler = it->second; } @@ -469,16 +485,25 @@ bool TabletCatalog::UpdateTableInfo(const ::openmldb::nameserver::TableInfo& tab db_it = result.first; } auto it = db_it->second.find(table_name); - if (it == db_it->second.end()) { + if (it != db_it->second.end()) { + if (table_info.tid() > it->second->GetTid()) { + db_it->second.erase(it); + } else if (table_info.tid() < it->second->GetTid()) { + LOG(INFO) << "current tid " << it->second->GetTid() << " is greater than new table info tid " + << table_info.tid(); + return false; + } else { + handler = it->second; + } + } + if (!handler) { handler = std::make_shared(table_info, local_tablet_); if (!handler->Init(client_manager_)) { LOG(WARNING) << "tablet handler init failed"; return false; } db_it->second.emplace(table_name, handler); - LOG(INFO) << "add table " << table_name << "to db " << db_name; - } else { - handler = it->second; + LOG(INFO) << "add table " << table_name << "to db " << db_name << " tid " << table_info.tid(); } if (bool updated = false; !handler->Update(table_info, client_manager_, &updated)) { return false; diff --git a/src/catalog/tablet_catalog.h b/src/catalog/tablet_catalog.h index 6b0365f6f51..7d834147591 100644 --- a/src/catalog/tablet_catalog.h +++ b/src/catalog/tablet_catalog.h @@ -174,7 +174,7 @@ class TabletTableHandler : public ::hybridse::vm::TableHandler, std::shared_ptr<::hybridse::vm::Tablet> GetTablet(const std::string &index_name, const std::vector &pks) override; - inline int32_t GetTid() { return table_st_.GetTid(); } + inline uint32_t GetTid() { return table_st_.GetTid(); } void AddTable(std::shared_ptr<::openmldb::storage::Table> table); @@ -233,7 +233,7 @@ class TabletCatalog : public ::hybridse::vm::Catalog { bool IndexSupport() override; - bool DeleteTable(const std::string &db, const std::string &table_name, uint32_t pid); + bool DeleteTable(const std::string &db, const std::string &table_name, uint32_t tid, uint32_t pid); bool DeleteDB(const std::string &db); diff --git a/src/catalog/tablet_catalog_test.cc b/src/catalog/tablet_catalog_test.cc index 1f134028c60..81b5c8c6ebc 100644 --- a/src/catalog/tablet_catalog_test.cc +++ b/src/catalog/tablet_catalog_test.cc @@ -314,6 +314,30 @@ TEST_F(TabletCatalogTest, segment_handler_test) { } } +TEST_F(TabletCatalogTest, add_drop_test) { + TestArgs args = PrepareTable("t1"); + std::shared_ptr catalog(new TabletCatalog()); + ASSERT_TRUE(catalog->Init()); + ::openmldb::api::TableMeta meta = args.meta[0]; + meta.set_tid(2); + ASSERT_TRUE(catalog->AddTable(meta, args.tables[0])); + uint32_t tid = meta.tid(); + uint32_t pid = meta.pid(); + std::string db = meta.db(); + std::string name = meta.name(); + ASSERT_FALSE(catalog->DeleteTable(db, name, tid - 1, pid)); + ::openmldb::api::TableMeta new_meta = meta; + new_meta.set_tid(1); + ASSERT_FALSE(catalog->UpdateTableMeta(new_meta)); + ::openmldb::nameserver::TableInfo table_info; + table_info.set_db(db); + table_info.set_tid(1); + table_info.set_name(name); + bool index_updated = false; + ASSERT_FALSE(catalog->UpdateTableInfo(table_info, &index_updated)); + ASSERT_TRUE(catalog->DeleteTable(db, name, tid, pid)); +} + TEST_F(TabletCatalogTest, segment_handler_pk_not_exist_test) { TestArgs args = PrepareTable("t1"); auto handler = std::shared_ptr( diff --git a/src/client/tablet_client.cc b/src/client/tablet_client.cc index 3ed9eb596b5..9357b23e29a 100644 --- a/src/client/tablet_client.cc +++ b/src/client/tablet_client.cc @@ -1111,7 +1111,7 @@ bool TabletClient::Scan(const ::openmldb::api::ScanRequest& request, brpc::Contr return true; } -bool TabletClient::CallProcedure(const std::string& db, const std::string& sp_name, const std::string& row, +bool TabletClient::CallProcedure(const std::string& db, const std::string& sp_name, const base::Slice& row, brpc::Controller* cntl, openmldb::api::QueryResponse* response, bool is_debug, uint64_t timeout_ms) { if (cntl == NULL || response == NULL) return false; @@ -1182,6 +1182,87 @@ bool TabletClient::CallSQLBatchRequestProcedure(const std::string& db, const std return true; } +bool static ParseBatchRequestMeta(const base::Slice& meta, const base::Slice& data, + ::openmldb::api::SQLBatchRequestQueryRequest* request) { + uint64_t total_len = 0; + const int32_t* buf = reinterpret_cast(meta.data()); + int32_t cnt = meta.size() / sizeof(int32_t); + for (int32_t idx = 0; idx < cnt; idx++) { + // the first field is for common_slice + if (idx == 0) { + if (buf[idx] == 0) { + request->set_common_slices(0); + } else { + request->set_common_slices(1); + request->add_row_sizes(buf[idx]); + } + } else { + request->add_row_sizes(buf[idx]); + } + total_len += buf[idx]; + } + if (total_len != data.size()) { + return false; + } + return true; +} + +base::Status TabletClient::CallSQLBatchRequestProcedure(const std::string& db, const std::string& sp_name, + const base::Slice& meta, const base::Slice& data, + bool is_debug, uint64_t timeout_ms, + brpc::Controller* cntl, openmldb::api::SQLBatchRequestQueryResponse* response) { + ::openmldb::api::SQLBatchRequestQueryRequest request; + request.set_sp_name(sp_name); + request.set_is_procedure(true); + request.set_db(db); + request.set_is_debug(is_debug); + request.set_common_slices(0); + request.set_non_common_slices(1); + cntl->set_timeout_ms(timeout_ms); + if (!ParseBatchRequestMeta(meta, data, &request)) { + return {base::ReturnCode::kError, "parse meta data failed"}; + } + auto& io_buf = cntl->request_attachment(); + if (io_buf.append(data.data(), data.size()) != 0) { + return {base::ReturnCode::kError, "append to iobuf error"}; + } + bool ok = client_.SendRequest(&::openmldb::api::TabletServer_Stub::SQLBatchRequestQuery, cntl, &request, response); + if (!ok || response->code() != ::openmldb::base::kOk) { + LOG(WARNING) << "fail to query tablet"; + return {base::ReturnCode::kError, "fail to query tablet. " + response->msg()}; + } + return {}; +} + +base::Status TabletClient::CallSQLBatchRequestProcedure(const std::string& db, const std::string& sp_name, + const base::Slice& meta, const base::Slice& data, + bool is_debug, uint64_t timeout_ms, + openmldb::RpcCallback* callback) { + if (callback == nullptr) { + return {base::ReturnCode::kError, "callback is null"}; + } + ::openmldb::api::SQLBatchRequestQueryRequest request; + request.set_sp_name(sp_name); + request.set_is_procedure(true); + request.set_db(db); + request.set_is_debug(is_debug); + request.set_common_slices(0); + request.set_non_common_slices(1); + if (!ParseBatchRequestMeta(meta, data, &request)) { + return {base::ReturnCode::kError, "parse meta data failed"}; + } + auto& io_buf = callback->GetController()->request_attachment(); + if (io_buf.append(data.data(), data.size()) != 0) { + return {base::ReturnCode::kError, "append to iobuf error"}; + } + callback->GetController()->set_timeout_ms(timeout_ms); + if (!client_.SendRequest(&::openmldb::api::TabletServer_Stub::SQLBatchRequestQuery, + callback->GetController().get(), &request, callback->GetResponse().get(), callback)) { + return {base::ReturnCode::kError, "stub is null"}; + } + return {}; +} + bool TabletClient::DropProcedure(const std::string& db_name, const std::string& sp_name) { ::openmldb::api::DropProcedureRequest request; ::openmldb::api::GeneralResponse response; @@ -1195,7 +1276,7 @@ bool TabletClient::DropProcedure(const std::string& db_name, const std::string& return true; } -bool TabletClient::CallProcedure(const std::string& db, const std::string& sp_name, const std::string& row, +bool TabletClient::CallProcedure(const std::string& db, const std::string& sp_name, const base::Slice& row, uint64_t timeout_ms, bool is_debug, openmldb::RpcCallback* callback) { if (callback == nullptr) { diff --git a/src/client/tablet_client.h b/src/client/tablet_client.h index 23a1c5df879..f955040a157 100644 --- a/src/client/tablet_client.h +++ b/src/client/tablet_client.h @@ -220,7 +220,7 @@ class TabletClient : public Client { base::Status CreateProcedure(const openmldb::api::CreateProcedureRequest& sp_request); - bool CallProcedure(const std::string& db, const std::string& sp_name, const std::string& row, + bool CallProcedure(const std::string& db, const std::string& sp_name, const base::Slice& row, brpc::Controller* cntl, openmldb::api::QueryResponse* response, bool is_debug, uint64_t timeout_ms); @@ -229,6 +229,11 @@ class TabletClient : public Client { openmldb::api::SQLBatchRequestQueryResponse* response, bool is_debug, uint64_t timeout_ms); + base::Status CallSQLBatchRequestProcedure(const std::string& db, const std::string& sp_name, + const base::Slice& meta, const base::Slice& data, + bool is_debug, uint64_t timeout_ms, + brpc::Controller* cntl, openmldb::api::SQLBatchRequestQueryResponse* response); + bool DropProcedure(const std::string& db_name, const std::string& sp_name); bool Refresh(uint32_t tid); @@ -243,7 +248,7 @@ class TabletClient : public Client { bool DropFunction(const ::openmldb::common::ExternalFun& fun, std::string* msg); - bool CallProcedure(const std::string& db, const std::string& sp_name, const std::string& row, uint64_t timeout_ms, + bool CallProcedure(const std::string& db, const std::string& sp_name, const base::Slice& row, uint64_t timeout_ms, bool is_debug, openmldb::RpcCallback* callback); bool CallSQLBatchRequestProcedure(const std::string& db, const std::string& sp_name, @@ -251,6 +256,11 @@ class TabletClient : public Client { uint64_t timeout_ms, openmldb::RpcCallback* callback); + base::Status CallSQLBatchRequestProcedure(const std::string& db, const std::string& sp_name, + const base::Slice& meta, const base::Slice& data, + bool is_debug, uint64_t timeout_ms, + openmldb::RpcCallback* callback); + bool CreateAggregator(const ::openmldb::api::TableMeta& base_table_meta, uint32_t aggr_tid, uint32_t aggr_pid, uint32_t index_pos, const ::openmldb::base::LongWindowInfo& window_info); diff --git a/src/proto/sql_procedure.proto b/src/proto/sql_procedure.proto index be76ff95fff..29cdf8b6a24 100755 --- a/src/proto/sql_procedure.proto +++ b/src/proto/sql_procedure.proto @@ -36,6 +36,7 @@ message ProcedureInfo { repeated openmldb.common.DbTableNamePair tables = 8; // dependent tables optional openmldb.type.ProcedureType type = 9 [default = kReqProcedure]; repeated google.protobuf.Option options = 10; + repeated int32 router_col = 11; } message CreateProcedureRequest { diff --git a/src/sdk/batch_request_result_set_sql.h b/src/sdk/batch_request_result_set_sql.h index e6a038fff62..dabebdae3f7 100644 --- a/src/sdk/batch_request_result_set_sql.h +++ b/src/sdk/batch_request_result_set_sql.h @@ -72,6 +72,11 @@ class SQLBatchRequestResultSet : public ::hybridse::sdk::ResultSet { inline int32_t Size() { return response_->count(); } + int32_t GetDataLength() override { return cntl_->response_attachment().size(); } + void CopyTo(hybridse::sdk::ByteArrayPtr buf) override { + cntl_->response_attachment().copy_to(reinterpret_cast(buf)); + } + private: inline uint32_t GetRecordSize() { return response_->count(); } diff --git a/src/sdk/result_set_base.h b/src/sdk/result_set_base.h index 69991901bb0..9a29d5ba9c5 100644 --- a/src/sdk/result_set_base.h +++ b/src/sdk/result_set_base.h @@ -64,6 +64,10 @@ class ResultSetBase { inline int32_t Size() { return count_; } + int32_t GetDataLength() { return io_buf_->size(); } + + void CopyTo(void* buf) { io_buf_->copy_to(buf); } + private: const butil::IOBuf* io_buf_; uint32_t count_; diff --git a/src/sdk/result_set_sql.h b/src/sdk/result_set_sql.h index ee38e41f2e0..92ed418dc6f 100644 --- a/src/sdk/result_set_sql.h +++ b/src/sdk/result_set_sql.h @@ -96,6 +96,12 @@ class ResultSetSQL : public ::hybridse::sdk::ResultSet { int32_t Size() override { return result_set_base_->Size(); } + void CopyTo(hybridse::sdk::ByteArrayPtr buf) override { + return result_set_base_->CopyTo(reinterpret_cast(buf)); + } + + int32_t GetDataLength() override { return result_set_base_->GetDataLength(); } + private: ::hybridse::vm::Schema schema_; uint32_t record_cnt_; @@ -211,6 +217,9 @@ class MultipleResultSetSQL : public ::hybridse::sdk::ResultSet { return total_size; } + int32_t GetDataLength() override { return 0; } + void CopyTo(hybridse::sdk::ByteArrayPtr buf) override { } + private: std::vector> result_set_list_; uint32_t result_set_idx_; @@ -261,6 +270,9 @@ class ReadableResultSetSQL : public ::hybridse::sdk::ResultSet { const bool GetAsString(uint32_t idx, std::string& val) override; + int32_t GetDataLength() override { return rs_->GetDataLength(); } + void CopyTo(hybridse::sdk::ByteArrayPtr buf) override { rs_->CopyTo(buf); } + private: std::shared_ptr<::hybridse::sdk::ResultSet> rs_; }; diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 85eeaa31761..296cd3d5755 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -1145,17 +1145,21 @@ std::shared_ptr SQLClusterRouter::GetTableReader() { } std::shared_ptr SQLClusterRouter::GetTablet(const std::string& db, - const std::string& sp_name, - hybridse::sdk::Status* status) { + const std::string& sp_name, const std::string& router_col, hybridse::sdk::Status* status) { RET_IF_NULL_AND_WARN(status, "output status is nullptr"); - std::shared_ptr sp_info = cluster_sdk_->GetProcedureInfo(db, sp_name, &status->msg); + auto sp_info = cluster_sdk_->GetProcedureInfo(db, sp_name, &status->msg); if (!sp_info) { CODE_PREPEND_AND_WARN(status, StatusCode::kCmdError, "procedure not found"); return nullptr; } const std::string& table = sp_info->GetMainTable(); const std::string& db_name = sp_info->GetMainDb().empty() ? db : sp_info->GetMainDb(); - auto tablet = cluster_sdk_->GetTablet(db_name, table); + std::shared_ptr<::openmldb::catalog::TabletAccessor> tablet; + if (router_col.empty()) { + tablet = cluster_sdk_->GetTablet(db_name, table); + } else { + tablet = cluster_sdk_->GetTablet(db_name, table, router_col); + } if (!tablet) { SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "fail to get tablet, table " + db_name + "." + table); return nullptr; @@ -1463,29 +1467,43 @@ std::shared_ptr SQLClusterRouter::Explain(const std::string& db, co } std::shared_ptr SQLClusterRouter::CallProcedure(const std::string& db, - const std::string& sp_name, - std::shared_ptr row, - hybridse::sdk::Status* status) { - RET_IF_NULL_AND_WARN(status, "output status is nullptr"); + const std::string& sp_name, std::shared_ptr row, hybridse::sdk::Status* status) { if (!row || !row->OK()) { SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "make sure the request row is built before execute sql"); return nullptr; } - auto tablet = GetTablet(db, sp_name, status); + return CallProcedure(db, sp_name, base::Slice(row->GetRow()), "", status); +} + +std::shared_ptr SQLClusterRouter::CallProcedure(const std::string& db, + const std::string& sp_name, hybridse::sdk::ByteArrayPtr buf, int len, + const std::string& router_col, hybridse::sdk::Status* status) { + if (buf == nullptr || len == 0) { + SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "invalid request row data"); + return nullptr; + } + return CallProcedure(db, sp_name, base::Slice(buf, len), router_col, status); +} + +std::shared_ptr SQLClusterRouter::CallProcedure(const std::string& db, + const std::string& sp_name, const base::Slice& row, + const std::string& router_col, hybridse::sdk::Status* status) { + RET_IF_NULL_AND_WARN(status, "output status is nullptr"); + auto tablet = GetTablet(db, sp_name, router_col, status); if (!tablet) { + SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "cannot get tablet"); return nullptr; } auto cntl = std::make_shared<::brpc::Controller>(); auto response = std::make_shared<::openmldb::api::QueryResponse>(); - bool ok = tablet->CallProcedure(db, sp_name, row->GetRow(), cntl.get(), response.get(), options_->enable_debug, - options_->request_timeout); + bool ok = tablet->CallProcedure(db, sp_name, row, cntl.get(), response.get(), + options_->enable_debug, options_->request_timeout); if (!ok || response->code() != ::openmldb::base::kOk) { RPC_STATUS_AND_WARN(status, cntl, response, "CallProcedure failed"); return nullptr; } - auto rs = ResultSetSQL::MakeResultSet(response, cntl, status); - return rs; + return ResultSetSQL::MakeResultSet(response, cntl, status); } std::shared_ptr SQLClusterRouter::CallSQLBatchRequestProcedure( @@ -1496,7 +1514,7 @@ std::shared_ptr SQLClusterRouter::CallSQLBatchRequestP SET_STATUS_AND_WARN(status, StatusCode::kNullInputPointer, "row_batch is nullptr"); return nullptr; } - auto tablet = GetTablet(db, sp_name, status); + auto tablet = GetTablet(db, sp_name, "", status); if (!tablet) { return nullptr; } @@ -1517,6 +1535,38 @@ std::shared_ptr SQLClusterRouter::CallSQLBatchRequestP return rs; } +std::shared_ptr SQLClusterRouter::CallSQLBatchRequestProcedure( + const std::string& db, const std::string& sp_name, + hybridse::sdk::ByteArrayPtr meta, int meta_len, + hybridse::sdk::ByteArrayPtr buf, int len, + hybridse::sdk::Status* status) { + RET_IF_NULL_AND_WARN(status, "output status is nullptr"); + if (meta == nullptr || meta_len == 0 || buf == nullptr || len == 0) { + SET_STATUS_AND_WARN(status, StatusCode::kNullInputPointer, "input data is null"); + return nullptr; + } + auto tablet = GetTablet(db, sp_name, "", status); + if (!tablet) { + return nullptr; + } + + auto cntl = std::make_shared<::brpc::Controller>(); + auto response = std::make_shared<::openmldb::api::SQLBatchRequestQueryResponse>(); + auto ret = tablet->CallSQLBatchRequestProcedure(db, sp_name, base::Slice(meta, meta_len), + base::Slice(buf, len), + options_->enable_debug, options_->request_timeout, cntl.get(), response.get()); + if (!ret.OK()) { + RPC_STATUS_AND_WARN(status, cntl, response, "CallSQLBatchRequestProcedure failed" + ret.GetMsg()); + return nullptr; + } + auto rs = std::make_shared<::openmldb::sdk::SQLBatchRequestResultSet>(response, cntl); + if (!rs->Init()) { + SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "SQLBatchRequestResultSet init failed"); + return nullptr; + } + return rs; +} + std::shared_ptr SQLClusterRouter::ShowProcedure(const std::string& db, const std::string& sp_name, hybridse::sdk::Status* status) { @@ -2159,22 +2209,37 @@ std::shared_ptr SQLClusterRouter::CallProcedure(cons int64_t timeout_ms, std::shared_ptr row, hybridse::sdk::Status* status) { - RET_IF_NULL_AND_WARN(status, "output status is nullptr"); if (!row || !row->OK()) { SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "make sure the request row is built before execute sql"); return {}; } - auto tablet = GetTablet(db, sp_name, status); + return CallProcedure(db, sp_name, timeout_ms, base::Slice(row->GetRow()), "", status); +} + +std::shared_ptr SQLClusterRouter::CallProcedure(const std::string& db, + const std::string& sp_name, int64_t timeout_ms, hybridse::sdk::ByteArrayPtr buf, int len, + const std::string& router_col, hybridse::sdk::Status* status) { + if (buf == nullptr || len == 0) { + SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "invalid request row data"); + return nullptr; + } + return CallProcedure(db, sp_name, timeout_ms, base::Slice(buf, len), router_col, status); +} + +std::shared_ptr SQLClusterRouter::CallProcedure(const std::string& db, + const std::string& sp_name, int64_t timeout_ms, const base::Slice& row, + const std::string& router_col, hybridse::sdk::Status* status) { + RET_IF_NULL_AND_WARN(status, "output status is nullptr"); + auto tablet = GetTablet(db, sp_name, router_col, status); if (!tablet) { return {}; } - std::shared_ptr response = std::make_shared(); std::shared_ptr cntl = std::make_shared(); auto* callback = new openmldb::RpcCallback(response, cntl); std::shared_ptr future = std::make_shared(callback); - bool ok = tablet->CallProcedure(db, sp_name, row->GetRow(), timeout_ms, options_->enable_debug, callback); + bool ok = tablet->CallProcedure(db, sp_name, row, timeout_ms, options_->enable_debug, callback); if (!ok) { // async rpc SET_STATUS_AND_WARN(status, StatusCode::kConnError, "CallProcedure failed(stub is null)"); @@ -2191,7 +2256,7 @@ std::shared_ptr SQLClusterRouter::CallSQLBatchReques // todo return nullptr; } - auto tablet = GetTablet(db, sp_name, status); + auto tablet = GetTablet(db, sp_name, "", status); if (!tablet) { return nullptr; } @@ -2213,6 +2278,32 @@ std::shared_ptr SQLClusterRouter::CallSQLBatchReques return future; } +std::shared_ptr SQLClusterRouter::CallSQLBatchRequestProcedure( + const std::string& db, const std::string& sp_name, int64_t timeout_ms, + hybridse::sdk::ByteArrayPtr meta, int meta_len, + hybridse::sdk::ByteArrayPtr buf, int len, hybridse::sdk::Status* status) { + RET_IF_NULL_AND_WARN(status, "output status is nullptr"); + if (meta == nullptr || meta_len == 0 || buf == nullptr || len == 0) { + SET_STATUS_AND_WARN(status, StatusCode::kNullInputPointer, "input data is null"); + return nullptr; + } + auto tablet = GetTablet(db, sp_name, "", status); + if (!tablet) { + return nullptr; + } + std::shared_ptr cntl = std::make_shared(); + auto response = std::make_shared(); + auto callback = new openmldb::RpcCallback(response, cntl); + auto future = std::make_shared(callback); + auto ret = tablet->CallSQLBatchRequestProcedure(db, sp_name, base::Slice(meta, meta_len), + base::Slice(buf, len), options_->enable_debug, timeout_ms, callback); + if (!ret.OK()) { + SET_STATUS_AND_WARN(status, StatusCode::kConnError, "CallSQLBatchRequestProcedure failed " + ret.GetMsg()); + return nullptr; + } + return future; +} + std::shared_ptr SQLClusterRouter::GetTableSchema(const std::string& db, const std::string& table_name) { auto table_info = cluster_sdk_->GetTableInfo(db, table_name); @@ -3462,7 +3553,7 @@ hybridse::sdk::Status SQLClusterRouter::HandleDeploy(const std::string& db, db_table->set_db_name(table.first); db_table->set_table_name(table.second); } - + const auto& router_col = explain_output.router.GetRouterCol(); std::stringstream str_stream; str_stream << "CREATE PROCEDURE " << deploy_node->Name() << " ("; for (int idx = 0; idx < input_schema->size(); idx++) { @@ -3475,6 +3566,9 @@ hybridse::sdk::Status SQLClusterRouter::HandleDeploy(const std::string& db, if (idx != input_schema->size() - 1) { str_stream << ", "; } + if (col.name() == router_col) { + sp_info.add_router_col(idx); + } } str_stream << ") BEGIN " << select_sql << " END;"; diff --git a/src/sdk/sql_cluster_router.h b/src/sdk/sql_cluster_router.h index ae72a32edbb..033bda8d090 100644 --- a/src/sdk/sql_cluster_router.h +++ b/src/sdk/sql_cluster_router.h @@ -152,10 +152,19 @@ class SQLClusterRouter : public SQLRouter { std::shared_ptr row, hybridse::sdk::Status* status) override; + std::shared_ptr CallProcedure(const std::string& db, const std::string& sp_name, + hybridse::sdk::ByteArrayPtr buf, int len, const std::string& router_col, + hybridse::sdk::Status* status) override; + std::shared_ptr CallSQLBatchRequestProcedure( const std::string& db, const std::string& sp_name, std::shared_ptr row_batch, hybridse::sdk::Status* status) override; + std::shared_ptr CallSQLBatchRequestProcedure( + const std::string& db, const std::string& sp_name, hybridse::sdk::ByteArrayPtr meta, int meta_len, + hybridse::sdk::ByteArrayPtr buf, int len, + hybridse::sdk::Status* status) override; + std::shared_ptr ShowProcedure(const std::string& db, const std::string& sp_name, hybridse::sdk::Status* status) override; @@ -168,10 +177,20 @@ class SQLClusterRouter : public SQLRouter { int64_t timeout_ms, std::shared_ptr row, hybridse::sdk::Status* status) override; + std::shared_ptr CallProcedure(const std::string& db, const std::string& sp_name, + int64_t timeout_ms, hybridse::sdk::ByteArrayPtr buf, int len, + const std::string& router_col, hybridse::sdk::Status* status) override; + std::shared_ptr CallSQLBatchRequestProcedure( const std::string& db, const std::string& sp_name, int64_t timeout_ms, std::shared_ptr row_batch, hybridse::sdk::Status* status) override; + std::shared_ptr CallSQLBatchRequestProcedure( + const std::string& db, const std::string& sp_name, int64_t timeout_ms, + hybridse::sdk::ByteArrayPtr meta, int meta_len, + hybridse::sdk::ByteArrayPtr buf, int len, + hybridse::sdk::Status* status) override; + std::shared_ptr<::openmldb::client::TabletClient> GetTabletClient(const std::string& db, const std::string& sql, ::hybridse::vm::EngineMode engine_mode, const std::shared_ptr& row, @@ -300,7 +319,7 @@ class SQLClusterRouter : public SQLRouter { inline bool CheckSQLSyntax(const std::string& sql); std::shared_ptr GetTablet(const std::string& db, const std::string& sp_name, - hybridse::sdk::Status* status); + const std::string& router_col, hybridse::sdk::Status* status); bool ExtractDBTypes(const std::shared_ptr& schema, std::vector* parameter_types); @@ -386,6 +405,13 @@ class SQLClusterRouter : public SQLRouter { const nameserver::TablePartition& partition_info, uint32_t replica_num, const TableStatusMap& statuses, std::string* msg); + std::shared_ptr CallProcedure(const std::string& db, const std::string& sp_name, + const base::Slice& row, const std::string& router_col, hybridse::sdk::Status* status); + + std::shared_ptr CallProcedure(const std::string& db, const std::string& sp_name, + int64_t timeout_ms, const base::Slice& row, + const std::string& router_col, hybridse::sdk::Status* status); + private: std::shared_ptr options_; std::string db_; diff --git a/src/sdk/sql_router.h b/src/sdk/sql_router.h index 356e8b80df3..aa12b6dff56 100644 --- a/src/sdk/sql_router.h +++ b/src/sdk/sql_router.h @@ -37,6 +37,8 @@ namespace openmldb { namespace sdk { +typedef char* ByteArrayPtr; + struct BasicRouterOptions { virtual ~BasicRouterOptions() = default; bool enable_debug = false; @@ -163,10 +165,19 @@ class SQLRouter { std::shared_ptr row, hybridse::sdk::Status* status) = 0; + virtual std::shared_ptr CallProcedure(const std::string& db, const std::string& sp_name, + hybridse::sdk::ByteArrayPtr buf, int len, const std::string& router_col, + hybridse::sdk::Status* status) = 0; + virtual std::shared_ptr CallSQLBatchRequestProcedure( const std::string& db, const std::string& sp_name, std::shared_ptr row_batch, hybridse::sdk::Status* status) = 0; + virtual std::shared_ptr CallSQLBatchRequestProcedure( + const std::string& db, const std::string& sp_name, hybridse::sdk::ByteArrayPtr meta, int meta_len, + hybridse::sdk::ByteArrayPtr buf, int len, + hybridse::sdk::Status* status) = 0; + virtual std::shared_ptr ShowProcedure(const std::string& db, const std::string& sp_name, hybridse::sdk::Status* status) = 0; @@ -176,10 +187,20 @@ class SQLRouter { std::shared_ptr row, hybridse::sdk::Status* status) = 0; + virtual std::shared_ptr CallProcedure(const std::string& db, const std::string& sp_name, + int64_t timeout_ms, hybridse::sdk::ByteArrayPtr buf, int len, + const std::string& router_col, hybridse::sdk::Status* status) = 0; + virtual std::shared_ptr CallSQLBatchRequestProcedure( const std::string& db, const std::string& sp_name, int64_t timeout_ms, std::shared_ptr row_batch, hybridse::sdk::Status* status) = 0; + virtual std::shared_ptr CallSQLBatchRequestProcedure( + const std::string& db, const std::string& sp_name, int64_t timeout_ms, + hybridse::sdk::ByteArrayPtr meta, int meta_len, + hybridse::sdk::ByteArrayPtr buf, int len, + hybridse::sdk::Status* status) = 0; + virtual std::shared_ptr GetTableSchema(const std::string& db, const std::string& table_name) = 0; diff --git a/src/sdk/sql_router_sdk.i b/src/sdk/sql_router_sdk.i index bf4d7a52f98..1146aeba42e 100644 --- a/src/sdk/sql_router_sdk.i +++ b/src/sdk/sql_router_sdk.i @@ -28,6 +28,26 @@ // Enable protobuf interfaces %include "swig_library/java/protobuf.i" %protobuf(openmldb::nameserver::TableInfo, com._4paradigm.openmldb.proto.NS.TableInfo); + +// refer https://github.com/swig/swig/blob/master/Lib/java/various.i + +%typemap(jni) hybridse::sdk::ByteArrayPtr "jbyteArray" +%typemap(jtype) hybridse::sdk::ByteArrayPtr "byte[]" +%typemap(jstype) hybridse::sdk::ByteArrayPtr "byte[]" +%typemap(in) hybridse::sdk::ByteArrayPtr { + $1 = (hybridse::sdk::ByteArrayPtr) JCALL2(GetByteArrayElements, jenv, $input, 0); +} + +%typemap(argout) hybridse::sdk::ByteArrayPtr { + JCALL3(ReleaseByteArrayElements, jenv, $input, (jbyte *) $1, 0); +} + +%typemap(javain) hybridse::sdk::ByteArrayPtr "$javainput" +%typemap(javaout) hybridse::sdk::ByteArrayPtr "{ return $jnicall; }" + +/* Prevent default freearg typemap from being used */ +%typemap(freearg) hybridse::sdk::ByteArrayPtr "" + #endif %shared_ptr(hybridse::sdk::ResultSet); diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index 6fb002edbd3..f30f1f8b74b 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -2054,7 +2054,7 @@ void TabletImpl::ChangeRole(RpcController* controller, const ::openmldb::api::Ch } PDLOG(INFO, "change to follower. tid[%u] pid[%u]", tid, pid); if (!table->GetDB().empty()) { - catalog_->DeleteTable(table->GetDB(), table->GetName(), pid); + catalog_->DeleteTable(table->GetDB(), table->GetName(), tid, pid); } } response->set_code(::openmldb::base::ReturnCode::kOk); @@ -3304,7 +3304,6 @@ int32_t TabletImpl::DeleteTableInternal(uint32_t tid, uint32_t pid, std::shared_ptr replicator = GetReplicator(tid, pid); { std::lock_guard spin_lock(spin_mutex_); - engine_->ClearCacheLocked(table->GetTableMeta()->db()); tables_[tid].erase(pid); replicators_[tid].erase(pid); snapshots_[tid].erase(pid); @@ -3318,12 +3317,13 @@ int32_t TabletImpl::DeleteTableInternal(uint32_t tid, uint32_t pid, snapshots_.erase(tid); } } + engine_->ClearCacheLocked(""); if (replicator) { replicator->DelAllReplicateNode(); PDLOG(INFO, "drop replicator for tid %u, pid %u", tid, pid); } if (!table->GetDB().empty()) { - catalog_->DeleteTable(table->GetDB(), table->GetName(), pid); + catalog_->DeleteTable(table->GetDB(), table->GetName(), tid, pid); } // delete related aggregator uint32_t base_tid = table->GetTableMeta()->base_table_tid(); @@ -3927,7 +3927,7 @@ int TabletImpl::CreateTableInternal(const ::openmldb::api::TableMeta* table_meta } else { LOG(WARNING) << "fail to add table " << table_meta->name() << " to catalog with db " << table_meta->db(); } - engine_->ClearCacheLocked(table_meta->db()); + engine_->ClearCacheLocked(""); // we always refresh the aggr catalog in case zk notification arrives later than the `deploy` sql if (boost::iequals(table_meta->db(), openmldb::nameserver::PRE_AGG_DB)) { From b685e648e4467d86ce1ad8233b9428fb50313e09 Mon Sep 17 00:00:00 2001 From: dl239 Date: Fri, 15 Sep 2023 17:25:16 +0800 Subject: [PATCH 053/111] docs: upgrade 0.8.3 (#3496) --- CHANGELOG.md | 38 ++++++++++- demo/java_quickstart/demo/pom.xml | 2 +- demo/predict-taxi-trip-duration/README.md | 4 +- .../README.md | 2 +- docs/en/deploy/compile.md | 8 +-- docs/en/deploy/install_deploy.md | 68 +++++++++---------- docs/en/quickstart/openmldb_quickstart.md | 2 +- docs/en/quickstart/sdk/java_sdk.md | 10 +-- docs/en/reference/ip_tips.md | 6 +- docs/en/use_case/JD_recommendation_en.md | 2 +- docs/en/use_case/airflow_provider_demo.md | 2 +- .../en/use_case/dolphinscheduler_task_demo.md | 2 +- docs/en/use_case/kafka_connector_demo.md | 2 +- docs/en/use_case/lightgbm_demo.md | 2 +- docs/en/use_case/pulsar_connector_demo.md | 2 +- docs/en/use_case/talkingdata_demo.md | 2 +- docs/zh/deploy/compile.md | 8 +-- docs/zh/deploy/install_deploy.md | 68 +++++++++---------- .../deploy_integration/OpenMLDB_Byzer_taxi.md | 2 +- .../airflow_provider_demo.md | 2 +- .../dolphinscheduler_task_demo.md | 2 +- .../kafka_connector_demo.md | 2 +- .../pulsar_connector_demo.md | 2 +- docs/zh/quickstart/openmldb_quickstart.md | 2 +- docs/zh/quickstart/sdk/java_sdk.md | 10 +-- docs/zh/reference/ip_tips.md | 12 ++-- docs/zh/tutorial/standalone_use.md | 2 +- docs/zh/use_case/JD_recommendation.md | 2 +- docs/zh/use_case/talkingdata_demo.md | 2 +- .../use_case/taxi_tour_duration_prediction.md | 2 +- release/conf/openmldb-env.sh | 2 +- steps/upgrade_docs_version.sh | 2 +- 32 files changed, 156 insertions(+), 120 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 8b5e0cb3fe8..96615004cee 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,40 @@ # Changelog +## [0.8.3] - 2023-09-15 + +### Features +- Optimize the performance of Java SDK (#3445 @dl239) +- Optimize the writing performance and significantly reduce the memory consumption of the Spark connector (#3443 @vagetablechicken) +- Support loading data from HIVE with customized SQLs (#3380 @tobegit3hub) +- Improve the output message for SDK and CLI (#3384 @vagetablechicken, #3434 #3494 @dl239) +- Support new built-in functions `json_array_length` and `get_json_object` (#3414 #3429 @aceforeverd) +- Add new options `RANGE_BIAS` and `ROWS_BIAS` for the `DEPLOYMENT` statement (#3456 @vagetablechicken) +- Support `const` project in online mode (#3376 @aceforeverd) +- Support `SHOW DEPLOYMENT` and `DROP DEPLOYMENT` with a database name (#3353 @emo-coder) +- Support inheriting environment variables for Spark (#3450 @vagetablechicken) +- Support deleting HDFS files when dropping tables (#3369 @tobegit3hub) +- Enhance the diagnostic tool (#3330 @zhangziheng01233) +- Enhance the operation tool (#3455 @dl239) +- Use the timeout value set by an user only if that is greater than the default value (#3484 @vagetablechicken) +- Remove the sync tool from the demo docker image (#3390 @dl239) +- Improve the documents (#3383 #3392 #3410 @vagetablechicken, #3175 #3447 ##3463 @TanZiYen, #3436 @aceforeverd, #3451 @wangerry, #3453 #3462 #3498 @dl239) + +### Bug Fixes +- `CREATE TABLE LIKE HIVE` returns success even if a database is not found (#3379 @emo-coder) +- If an error occurred when executing `DROP FUNCTION`, the function cannot be deleted again. (#3362 @vagetablechicken, #3441 @dl239) +- The results of `SHOW JOBS` are not sorted by `id` (#3371 @emo-coder) +- NameServer will crash if creating system tables fails. (#3432 @dl239) +- `CREATE INDEX` may fail if the previous `CREATE INDEX` command on the same table has not finished. (#3393 @dl239) +- The result of `SELECT` on the deleted index column is empty (#3426 @dl239) +- Other minor bug fixes (#3391 #3408 @vagetablechicken, #3386 #3427 #3459 @dl239, #3367 #3495 @aceforeverd) + +### Code Refactoring +#3397 @emo-coder, #3411 @vagetablechicken, #3435 @aceforeverd, #3473 @lqy222 + +### Breaking Changes +- The return type of `GetInternalSchema` in `SQLResultSet` changes from native Schema to `com._4paradigm.openmldb.sdk.Schema` #3445 +- Remove the deprecated TaskManager configuration `namenode.uri` #3369 + ## [0.8.2] - 2023-07-20 ### Features @@ -16,7 +51,7 @@ - The bool type is not properly packed in APIServer. (#3366 @vagetablechicken) - The table can be created successfully when there are duplicated indexs. (#3306 @dl239) -### Breaking Changes: +### Breaking Changes - The field `Offline_deep_copy` will be replaced by `Offline_symbolic_paths` in the result of `SHOW TABLE STATUS` #3349. ## [0.8.1] - 2023-06-28 @@ -618,6 +653,7 @@ Removed - openmldb-0.2.0-linux.tar.gz targets on x86_64 - aarch64 artifacts consider experimental +[0.8.3]: https://github.com/4paradigm/OpenMLDB/compare/v0.8.2...v0.8.3 [0.8.2]: https://github.com/4paradigm/OpenMLDB/compare/v0.8.1...v0.8.2 [0.8.1]: https://github.com/4paradigm/OpenMLDB/compare/v0.8.0...v0.8.1 [0.8.0]: https://github.com/4paradigm/OpenMLDB/compare/v0.7.3...v0.8.0 diff --git a/demo/java_quickstart/demo/pom.xml b/demo/java_quickstart/demo/pom.xml index 8b56bc1ce31..d69691970e7 100644 --- a/demo/java_quickstart/demo/pom.xml +++ b/demo/java_quickstart/demo/pom.xml @@ -29,7 +29,7 @@ com.4paradigm.openmldb openmldb-jdbc - 0.8.2 + 0.8.3 org.testng diff --git a/demo/predict-taxi-trip-duration/README.md b/demo/predict-taxi-trip-duration/README.md index 3a2bc6b9dee..bd44778c2a3 100644 --- a/demo/predict-taxi-trip-duration/README.md +++ b/demo/predict-taxi-trip-duration/README.md @@ -28,7 +28,7 @@ w2 as (PARTITION BY passenger_count ORDER BY pickup_datetime ROWS_RANGE BETWEEN **Start docker** ``` -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` **Initialize environment** ```bash @@ -138,7 +138,7 @@ python3 predict.py **Start docker** ```bash -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` **Initialize environment** diff --git a/demo/talkingdata-adtracking-fraud-detection/README.md b/demo/talkingdata-adtracking-fraud-detection/README.md index 46a17cb770c..5fedb578266 100644 --- a/demo/talkingdata-adtracking-fraud-detection/README.md +++ b/demo/talkingdata-adtracking-fraud-detection/README.md @@ -15,7 +15,7 @@ We recommend you to use docker to run the demo. OpenMLDB and dependencies have b **Start docker** ``` -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` #### Run locally diff --git a/docs/en/deploy/compile.md b/docs/en/deploy/compile.md index 66c7a55d1ab..a20c921b4ac 100644 --- a/docs/en/deploy/compile.md +++ b/docs/en/deploy/compile.md @@ -7,7 +7,7 @@ This section describes the steps to compile and use OpenMLDB inside its official docker image [hybridsql](https://hub.docker.com/r/4pdosc/hybridsql). The docker image has packed required tools and dependencies, so there is no need to set them up separately. To compile without the official docker image, refer to the section [Detailed Instructions for Build](#detailed-instructions-for-build) below. -Keep in mind that you should always use the same version of both compile image and [OpenMLDB version](https://github.com/4paradigm/OpenMLDB/releases). This section demonstrates compiling for [OpenMLDB v0.8.2](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.2) under `hybridsql:0.8.2` ,If you prefer to compile on the latest code in `main` branch, pull `hybridsql:latest` image instead. +Keep in mind that you should always use the same version of both compile image and [OpenMLDB version](https://github.com/4paradigm/OpenMLDB/releases). This section demonstrates compiling for [OpenMLDB v0.8.3](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.3) under `hybridsql:0.8.3` ,If you prefer to compile on the latest code in `main` branch, pull `hybridsql:latest` image instead. 1. Pull the docker image @@ -21,11 +21,11 @@ Keep in mind that you should always use the same version of both compile image a docker run -it 4pdosc/hybridsql:0.8 bash ``` -3. Download the OpenMLDB source code inside the docker container, and setting the branch into v0.8.2 +3. Download the OpenMLDB source code inside the docker container, and setting the branch into v0.8.3 ```bash cd ~ - git clone -b v0.8.2 https://github.com/4paradigm/OpenMLDB.git + git clone -b v0.8.3 https://github.com/4paradigm/OpenMLDB.git ``` 4. Compile OpenMLDB @@ -151,7 +151,7 @@ The built jar packages are in the `target` path of each submodule. If you want t 1. Downloading the pre-built OpenMLDB Spark distribution: ```bash -wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.2/spark-3.2.1-bin-openmldbspark.tgz +wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.3/spark-3.2.1-bin-openmldbspark.tgz ``` Alternatively, you can also download the source code and compile from scratch: diff --git a/docs/en/deploy/install_deploy.md b/docs/en/deploy/install_deploy.md index 66d1a9c987b..cdaf06a5d6a 100644 --- a/docs/en/deploy/install_deploy.md +++ b/docs/en/deploy/install_deploy.md @@ -52,17 +52,17 @@ If your operating system is not mentioned above or if you want to compile from s ### Linux Platform Compatibility pre-test -Due to the variations among Linux platforms, the distribution package may not be entirely compatible with your machine. Therefore, it's recommended to conduct a preliminary compatibility test. Download the pre-compiled package `openmldb-0.8.2-linux.tar.gz`, and execute: +Due to the variations among Linux platforms, the distribution package may not be entirely compatible with your machine. Therefore, it's recommended to conduct a preliminary compatibility test. Download the pre-compiled package `openmldb-0.8.3-linux.tar.gz`, and execute: ``` -tar -zxvf openmldb-0.8.2-linux.tar.gz -./openmldb-0.8.2-linux/bin/openmldb --version +tar -zxvf openmldb-0.8.3-linux.tar.gz +./openmldb-0.8.3-linux/bin/openmldb --version ``` The result should display the version number of the program, as shown below: ``` -openmldb version 0.8.2-xxxx +openmldb version 0.8.3-xxxx Debug build (NDEBUG not #defined) ``` @@ -177,9 +177,9 @@ DataCollector and SyncTool currently do not support one-click deployment. Please ### Download OpenMLDB ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -cd openmldb-0.8.2-linux +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +cd openmldb-0.8.3-linux ``` ### Environment Configuration @@ -188,7 +188,7 @@ The environment variables are defined in `conf/openmldb-env.sh`, as shown in the | Environment Variable | Default Value | Note | | --------------------------------- | ------------------------------------------------------- | ------------------------------------------------------------ | -| OPENMLDB_VERSION | 0.8.2 | OpenMLDB version | +| OPENMLDB_VERSION | 0.8.3 | OpenMLDB version | | OPENMLDB_MODE | standalone | standalone or cluster | | OPENMLDB_HOME | root directory of the release folder | openmldb root directory | | SPARK_HOME | $OPENMLDB_HOME/spark | openmldb spark root directory,If the directory does not exist, it will be downloaded automatically.| @@ -361,10 +361,10 @@ Note that at least two TabletServer need to be deployed, otherwise errors may oc **1. Download the OpenMLDB deployment package** ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-tablet-0.8.2 -cd openmldb-tablet-0.8.2 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-tablet-0.8.3 +cd openmldb-tablet-0.8.3 ``` **2. Modify the configuration file `conf/tablet.flags`** @@ -427,12 +427,12 @@ For clustered versions, the number of TabletServers must be 2 or more. If there' To start the next TabletServer on a different machine, simply repeat the aforementioned steps on that machine. If starting the next TabletServer on the same machine, ensure it's in a different directory, and do not reuse a directory where the TabletServer is already running. -For instance, you can decompress the package again (avoid using a directory where TabletServer is already running, as files generated after startup may be affected), and name the directory `openmldb-tablet-0.8.2-2`. +For instance, you can decompress the package again (avoid using a directory where TabletServer is already running, as files generated after startup may be affected), and name the directory `openmldb-tablet-0.8.3-2`. ``` -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-tablet-0.8.2-2 -cd openmldb-tablet-0.8.2-2 +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-tablet-0.8.3-2 +cd openmldb-tablet-0.8.3-2 ``` Modify the configuration again and start the TabletServer. Note that if all TabletServers are on the same machine, use different port numbers to avoid "Fail to listen" error in the log (`logs/tablet.WARNING`). @@ -450,10 +450,10 @@ Please ensure that all TabletServer have been successfully started before deploy **1. Download the OpenMLDB deployment package** ```` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-ns-0.8.2 -cd openmldb-ns-0.8.2 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-ns-0.8.3 +cd openmldb-ns-0.8.3 ```` **2. Modify the configuration file conf/nameserver.flags** @@ -498,12 +498,12 @@ You can have only one NameServer, but if you need high availability, you can dep To start the next NameServer on another machine, simply repeat the above steps on that machine. If starting the next NameServer on the same machine, ensure it's in a different directory and do not reuse the directory where NameServer has already been started. -For instance, you can decompress the package again (avoid using the directory where NameServer is already running, as files generated after startup may be affected) and name the directory `openmldb-ns-0.8.2-2`. +For instance, you can decompress the package again (avoid using the directory where NameServer is already running, as files generated after startup may be affected) and name the directory `openmldb-ns-0.8.3-2`. ``` -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-ns-0.8.2-2 -cd openmldb-ns-0.8.2-2 +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-ns-0.8.3-2 +cd openmldb-ns-0.8.3-2 ``` Then modify the configuration and start. @@ -544,10 +544,10 @@ Before running APIServer, ensure that the TabletServer and NameServer processes **1. Download the OpenMLDB deployment package** ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-apiserver-0.8.2 -cd openmldb-apiserver-0.8.2 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-apiserver-0.8.3 +cd openmldb-apiserver-0.8.3 ``` **2. Modify the configuration file conf/apiserver.flags** @@ -607,18 +607,18 @@ You can have only one TaskManager, but if you require high availability, you can Spark distribution: ```shell -wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.2/spark-3.2.1-bin-openmldbspark.tgz -# Image address (China):http://43.138.115.238/download/v0.8.2/spark-3.2.1-bin-openmldbspark.tgz +wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.3/spark-3.2.1-bin-openmldbspark.tgz +# Image address (China):http://43.138.115.238/download/v0.8.3/spark-3.2.1-bin-openmldbspark.tgz tar -zxvf spark-3.2.1-bin-openmldbspark.tgz export SPARK_HOME=`pwd`/spark-3.2.1-bin-openmldbspark/ ``` OpenMLDB deployment package: ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-taskmanager-0.8.2 -cd openmldb-taskmanager-0.8.2 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-taskmanager-0.8.3 +cd openmldb-taskmanager-0.8.3 ``` **2. Modify the configuration file conf/taskmanager.properties** diff --git a/docs/en/quickstart/openmldb_quickstart.md b/docs/en/quickstart/openmldb_quickstart.md index 944778abec4..57c3c0d2e75 100644 --- a/docs/en/quickstart/openmldb_quickstart.md +++ b/docs/en/quickstart/openmldb_quickstart.md @@ -19,7 +19,7 @@ This article is developed and deployed based on OpenMLDB CLI, and it is necessar Execute the following command in the command line to pull the OpenMLDB image and start the Docker container: ```bash -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` ``` {note} diff --git a/docs/en/quickstart/sdk/java_sdk.md b/docs/en/quickstart/sdk/java_sdk.md index 629c715d5e6..a74f4c98f3c 100644 --- a/docs/en/quickstart/sdk/java_sdk.md +++ b/docs/en/quickstart/sdk/java_sdk.md @@ -10,12 +10,12 @@ com.4paradigm.openmldb openmldb-jdbc - 0.7.2 + 0.8.3 com.4paradigm.openmldb openmldb-native - 0.7.2 + 0.8.3 ``` @@ -27,16 +27,16 @@ com.4paradigm.openmldb openmldb-jdbc - 0.7.2 + 0.8.3 com.4paradigm.openmldb openmldb-native - 0.7.2-macos + 0.8.3-macos ``` -Note: Since the openmldb-native package contains the C++ static library compiled for OpenMLDB, it is defaults to the Linux static library. For macOS, the version of openmldb-native should be changed to `0.7.2-macos`, while the version of openmldb-jdbc should remain unchanged. +Note: Since the openmldb-native package contains the C++ static library compiled for OpenMLDB, it is defaults to the Linux static library. For macOS, the version of openmldb-native should be changed to `0.8.3-macos`, while the version of openmldb-jdbc should remain unchanged. The macOS version of openmldb-native only supports macOS 12. To run it on macOS 11 or macOS 10.15, the openmldb-native package needs to be compiled from source code on the corresponding OS. For detailed compilation methods, please refer to [Concurrent Compilation of Java SDK](https://openmldb.ai/docs/zh/main/deploy/compile.html#java-sdk). diff --git a/docs/en/reference/ip_tips.md b/docs/en/reference/ip_tips.md index e8a7001792f..2fc5b1c8805 100644 --- a/docs/en/reference/ip_tips.md +++ b/docs/en/reference/ip_tips.md @@ -38,12 +38,12 @@ Expose the port through `-p` when starting the container, and the client can acc The stand-alone version needs to expose the ports of three components (nameserver, tabletserver, apiserver): ``` -docker run -p 6527:6527 -p 9921:9921 -p 8080:8080 -it 4pdosc/openmldb:0.8.2 bash +docker run -p 6527:6527 -p 9921:9921 -p 8080:8080 -it 4pdosc/openmldb:0.8.3 bash ``` The cluster version needs to expose the zk port and the ports of all components: ``` -docker run -p 2181:2181 -p 7527:7527 -p 10921:10921 -p 10922:10922 -p 8080:8080 -p 9902:9902 -it 4pdosc/openmldb:0.8.2 bash +docker run -p 2181:2181 -p 7527:7527 -p 10921:10921 -p 10922:10922 -p 8080:8080 -p 9902:9902 -it 4pdosc/openmldb:0.8.3 bash ``` ```{tip} @@ -57,7 +57,7 @@ If the OpenMLDB service process is distributed, the "port number is occupied" ap #### Host Network Or more conveniently, use host networking without port isolation, for example: ``` -docker run --network host -it 4pdosc/openmldb:0.8.2 bash +docker run --network host -it 4pdosc/openmldb:0.8.3 bash ``` But in this case, it is easy to find that the port is occupied by other processes in the host. If occupancy occurs, change the port number carefully. diff --git a/docs/en/use_case/JD_recommendation_en.md b/docs/en/use_case/JD_recommendation_en.md index 219026010e7..3a3a7df6f0a 100644 --- a/docs/en/use_case/JD_recommendation_en.md +++ b/docs/en/use_case/JD_recommendation_en.md @@ -52,7 +52,7 @@ Oneflow-serving:https://github.com/Oneflow-Inc/serving/tree/ce5d667468b6b3ba66 Pull the OpenMLDB docker image and run. ```bash -docker run -dit --name=openmldb --network=host -v $demodir:/work/oneflow_demo 4pdosc/openmldb:0.8.2 bash +docker run -dit --name=openmldb --network=host -v $demodir:/work/oneflow_demo 4pdosc/openmldb:0.8.3 bash docker exec -it openmldb bash ``` diff --git a/docs/en/use_case/airflow_provider_demo.md b/docs/en/use_case/airflow_provider_demo.md index 2e5b59efd34..bf430b7cce2 100644 --- a/docs/en/use_case/airflow_provider_demo.md +++ b/docs/en/use_case/airflow_provider_demo.md @@ -34,7 +34,7 @@ For the newest version, please visit [GitHub example_dags](https://github.com/4p - Please project the previously downloaded files to the path `/work/airflow/dags`, where Airflow will access for the DAG. ``` -docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow/dags -it 4pdosc/openmldb:0.8.2 bash +docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow/dags -it 4pdosc/openmldb:0.8.3 bash ``` #### 0.3 Download and Install the Airflow and the Airflow OpenMLDB Provider diff --git a/docs/en/use_case/dolphinscheduler_task_demo.md b/docs/en/use_case/dolphinscheduler_task_demo.md index c3666b6c8aa..8f3d9b51e97 100644 --- a/docs/en/use_case/dolphinscheduler_task_demo.md +++ b/docs/en/use_case/dolphinscheduler_task_demo.md @@ -33,7 +33,7 @@ In addition to the feature engineering done by OpenMLDB, the prediction also req The demo can run on MacOS or Linux, the OpenMLDB docker image is recommended. We'll start OpenMLDB and DolphinScheduler in the same container, expose the DolphinScheduler web port: ``` -docker run -it -p 12345:12345 4pdosc/openmldb:0.8.2 bash +docker run -it -p 12345:12345 4pdosc/openmldb:0.8.3 bash ``` ```{attention} diff --git a/docs/en/use_case/kafka_connector_demo.md b/docs/en/use_case/kafka_connector_demo.md index b088d24d085..be6c17e9fae 100644 --- a/docs/en/use_case/kafka_connector_demo.md +++ b/docs/en/use_case/kafka_connector_demo.md @@ -22,7 +22,7 @@ For OpenMLDB Kafka Connector implementation, please refer to [extensions/kafka-c This article will start the OpenMLDB in docker container, so there is no need to download the OpenMLDB separately. Moreover, Kafka and connector can be started in the same container. We recommend that you save the three downloaded packages to the same directory. Let's assume that the packages are in the `/work/kafka` directory. ``` -docker run -it -v `pwd`:/work/kafka --name openmldb 4pdosc/openmldb:0.8.2 bash +docker run -it -v `pwd`:/work/kafka --name openmldb 4pdosc/openmldb:0.8.3 bash ``` ### Steps diff --git a/docs/en/use_case/lightgbm_demo.md b/docs/en/use_case/lightgbm_demo.md index 28132af3829..f4e602373a6 100644 --- a/docs/en/use_case/lightgbm_demo.md +++ b/docs/en/use_case/lightgbm_demo.md @@ -13,7 +13,7 @@ Note that: (1) this case is based on the OpenMLDB cluster version for tutorial d - Pull the OpenMLDB docker image and run the corresponding container: ```bash -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` The image is preinstalled with OpenMLDB and preset with all scripts, third-party libraries, open-source tools and training data required for this case. diff --git a/docs/en/use_case/pulsar_connector_demo.md b/docs/en/use_case/pulsar_connector_demo.md index 161bee81eb8..194195da3fd 100644 --- a/docs/en/use_case/pulsar_connector_demo.md +++ b/docs/en/use_case/pulsar_connector_demo.md @@ -29,7 +29,7 @@ Only OpenMLDB cluster mode can be the sink dist, and only write to online storag We recommend that you use ‘host network’ to run docker. And bind volume ‘files’ too. The sql scripts are in it. ``` -docker run -dit --network host -v `pwd`/files:/work/pulsar_files --name openmldb 4pdosc/openmldb:0.8.2 bash +docker run -dit --network host -v `pwd`/files:/work/pulsar_files --name openmldb 4pdosc/openmldb:0.8.3 bash docker exec -it openmldb bash ``` ```{note} diff --git a/docs/en/use_case/talkingdata_demo.md b/docs/en/use_case/talkingdata_demo.md index 42408324a15..4c0370d375f 100644 --- a/docs/en/use_case/talkingdata_demo.md +++ b/docs/en/use_case/talkingdata_demo.md @@ -13,7 +13,7 @@ It is recommended to run this demo in Docker. Please make sure that OpenMLDB and **Start the OpenMLDB Docker Image** ``` -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` #### 1.1.2 Run Locally diff --git a/docs/zh/deploy/compile.md b/docs/zh/deploy/compile.md index c717f784ac4..aec38f6a5a3 100644 --- a/docs/zh/deploy/compile.md +++ b/docs/zh/deploy/compile.md @@ -4,7 +4,7 @@ 此节介绍在官方编译镜像 [hybridsql](https://hub.docker.com/r/4pdosc/hybridsql) 中编译 OpenMLDB,主要可以用于在容器内试用和开发目的。镜像内置了编译所需要的工具和依赖,因此不需要额外的步骤单独配置它们。关于基于非 docker 的编译使用方式,请参照下面的 [从源码全量编译](#从源码全量编译) 章节。 -对于编译镜像的版本,需要注意拉取的镜像版本和 [OpenMLDB 发布版本](https://github.com/4paradigm/OpenMLDB/releases)保持一致。以下例子演示了在 `hybridsql:0.8.2` 镜像版本上编译 [OpenMLDB v0.8.2](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.2) 的代码,如果要编译最新 `main` 分支的代码,则需要拉取 `hybridsql:latest` 版本镜像。 +对于编译镜像的版本,需要注意拉取的镜像版本和 [OpenMLDB 发布版本](https://github.com/4paradigm/OpenMLDB/releases)保持一致。以下例子演示了在 `hybridsql:0.8.3` 镜像版本上编译 [OpenMLDB v0.8.3](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.3) 的代码,如果要编译最新 `main` 分支的代码,则需要拉取 `hybridsql:latest` 版本镜像。 1. 下载 docker 镜像 ```bash @@ -16,10 +16,10 @@ docker run -it 4pdosc/hybridsql:0.8 bash ``` -3. 在 docker 容器内, 克隆 OpenMLDB, 并切换分支到 v0.8.2 +3. 在 docker 容器内, 克隆 OpenMLDB, 并切换分支到 v0.8.3 ```bash cd ~ - git clone -b v0.8.2 https://github.com/4paradigm/OpenMLDB.git + git clone -b v0.8.3 https://github.com/4paradigm/OpenMLDB.git ``` 4. 在 docker 容器内编译 OpenMLDB @@ -141,7 +141,7 @@ make SQL_JAVASDK_ENABLE=ON NPROC=4 1. 下载预编译的OpenMLDB Spark发行版。 ```bash -wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.2/spark-3.2.1-bin-openmldbspark.tgz +wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.3/spark-3.2.1-bin-openmldbspark.tgz ``` 或者下载源代码并从头开始编译。 diff --git a/docs/zh/deploy/install_deploy.md b/docs/zh/deploy/install_deploy.md index aa730c6189d..d060cce3b01 100644 --- a/docs/zh/deploy/install_deploy.md +++ b/docs/zh/deploy/install_deploy.md @@ -47,17 +47,17 @@ strings /lib64/libc.so.6 | grep ^GLIBC_ ### Linux 平台预测试 -由于 Linux 平台的多样性,发布包可能在你的机器上不兼容,请先通过简单的运行测试。比如,下载预编译包 `openmldb-0.8.2-linux.tar.gz` 以后,运行: +由于 Linux 平台的多样性,发布包可能在你的机器上不兼容,请先通过简单的运行测试。比如,下载预编译包 `openmldb-0.8.3-linux.tar.gz` 以后,运行: ``` -tar -zxvf openmldb-0.8.2-linux.tar.gz -./openmldb-0.8.2-linux/bin/openmldb --version +tar -zxvf openmldb-0.8.3-linux.tar.gz +./openmldb-0.8.3-linux/bin/openmldb --version ``` 结果应显示该程序的版本号,类似 ``` -openmldb version 0.8.2-xxxx +openmldb version 0.8.3-xxxx Debug build (NDEBUG not #defined) ``` @@ -171,9 +171,9 @@ DataCollector和SyncTool暂不支持一键部署。请参考手动部署方式 ### 下载OpenMLDB发行版 ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -cd openmldb-0.8.2-linux +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +cd openmldb-0.8.3-linux ``` ### 环境配置 @@ -181,7 +181,7 @@ cd openmldb-0.8.2-linux | 环境变量 | 默认值 | 定义 | |-----------------------------------|------------------------------------|-------------------------------------------------------------------------| -| OPENMLDB_VERSION | 0.8.2 | OpenMLDB版本 | +| OPENMLDB_VERSION | 0.8.3 | OpenMLDB版本 | | OPENMLDB_MODE | standalone | standalone或者cluster | | OPENMLDB_HOME | 当前发行版的根目录 | openmldb发行版根目录 | | SPARK_HOME | $OPENMLDB_HOME/spark | openmldb spark发行版根目录,如果该目录不存在,自动从网上下载 | @@ -348,10 +348,10 @@ bash bin/zkCli.sh -server 172.27.128.33:7181 **1. 下载OpenMLDB部署包** ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-tablet-0.8.2 -cd openmldb-tablet-0.8.2 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-tablet-0.8.3 +cd openmldb-tablet-0.8.3 ``` **2. 修改配置文件`conf/tablet.flags`** ```bash @@ -402,12 +402,12 @@ Start tablet success 在另一台机器启动下一个TabletServer只需在该机器上重复以上步骤。如果是在同一个机器上启动下一个TabletServer,请保证是在另一个目录中,不要重复使用已经启动过TabletServer的目录。 -比如,可以再次解压压缩包(不要cp已经启动过TabletServer的目录,启动后的生成文件会造成影响),并命名目录为`openmldb-tablet-0.8.2-2`。 +比如,可以再次解压压缩包(不要cp已经启动过TabletServer的目录,启动后的生成文件会造成影响),并命名目录为`openmldb-tablet-0.8.3-2`。 ``` -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-tablet-0.8.2-2 -cd openmldb-tablet-0.8.2-2 +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-tablet-0.8.3-2 +cd openmldb-tablet-0.8.3-2 ``` 再修改配置并启动。注意,TabletServer如果都在同一台机器上,请使用不同端口号,否则日志(logs/tablet.WARNING)中将会有"Fail to listen"信息。 @@ -421,10 +421,10 @@ cd openmldb-tablet-0.8.2-2 ``` **1. 下载OpenMLDB部署包** ```` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-ns-0.8.2 -cd openmldb-ns-0.8.2 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-ns-0.8.3 +cd openmldb-ns-0.8.3 ```` **2. 修改配置文件conf/nameserver.flags** ```bash @@ -462,12 +462,12 @@ NameServer 可以只存在一台,如果你需要高可用性,可以部署多 在另一台机器启动下一个 NameServer 只需在该机器上重复以上步骤。如果是在同一个机器上启动下一个 NameServer,请保证是在另一个目录中,不要重复使用已经启动过 namserver 的目录。 -比如,可以再次解压压缩包(不要cp已经启动过 namserver 的目录,启动后的生成文件会造成影响),并命名目录为`openmldb-ns-0.8.2-2`。 +比如,可以再次解压压缩包(不要cp已经启动过 namserver 的目录,启动后的生成文件会造成影响),并命名目录为`openmldb-ns-0.8.3-2`。 ``` -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-ns-0.8.2-2 -cd openmldb-ns-0.8.2-2 +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-ns-0.8.3-2 +cd openmldb-ns-0.8.3-2 ``` 然后再修改配置并启动。 @@ -505,10 +505,10 @@ APIServer负责接收http请求,转发给OpenMLDB集群并返回结果。它 **1. 下载OpenMLDB部署包** ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-apiserver-0.8.2 -cd openmldb-apiserver-0.8.2 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-apiserver-0.8.3 +cd openmldb-apiserver-0.8.3 ``` **2. 修改配置文件conf/apiserver.flags** @@ -563,18 +563,18 @@ TaskManager 可以只存在一台,如果你需要高可用性,可以部署 Spark发行版: ```shell -wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.2/spark-3.2.1-bin-openmldbspark.tgz -# 中国镜像地址:http://43.138.115.238/download/v0.8.2/spark-3.2.1-bin-openmldbspark.tgz +wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.3/spark-3.2.1-bin-openmldbspark.tgz +# 中国镜像地址:http://43.138.115.238/download/v0.8.3/spark-3.2.1-bin-openmldbspark.tgz tar -zxvf spark-3.2.1-bin-openmldbspark.tgz export SPARK_HOME=`pwd`/spark-3.2.1-bin-openmldbspark/ ``` OpenMLDB部署包: ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.2/openmldb-0.8.2-linux.tar.gz -tar -zxvf openmldb-0.8.2-linux.tar.gz -mv openmldb-0.8.2-linux openmldb-taskmanager-0.8.2 -cd openmldb-taskmanager-0.8.2 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz +tar -zxvf openmldb-0.8.3-linux.tar.gz +mv openmldb-0.8.3-linux openmldb-taskmanager-0.8.3 +cd openmldb-taskmanager-0.8.3 ``` **2. 修改配置文件conf/taskmanager.properties** diff --git a/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md b/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md index 1d43938f04e..926c079469d 100644 --- a/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md +++ b/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md @@ -13,7 +13,7 @@ 执行命令如下: ``` -docker run --network host -dit --name openmldb -v /mlsql/admin/:/byzermnt 4pdosc/openmldb:0.8.2 bash +docker run --network host -dit --name openmldb -v /mlsql/admin/:/byzermnt 4pdosc/openmldb:0.8.3 bash docker exec -it openmldb bash /work/init.sh echo "create database db1;" | /work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client diff --git a/docs/zh/integration/deploy_integration/airflow_provider_demo.md b/docs/zh/integration/deploy_integration/airflow_provider_demo.md index ee812d5e428..5e8a77df979 100644 --- a/docs/zh/integration/deploy_integration/airflow_provider_demo.md +++ b/docs/zh/integration/deploy_integration/airflow_provider_demo.md @@ -35,7 +35,7 @@ ls airflow_demo_files 登录Airflow Web需要对外端口,所以此处暴露容器的端口。并且直接将上一步下载的文件映射到`/work/airflow/dags`,接下来Airflow将加载此文件夹的DAG。 ``` -docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow_demo_files -it 4pdosc/openmldb:0.8.2 bash +docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow_demo_files -it 4pdosc/openmldb:0.8.3 bash ``` #### 0.3 下载安装Airflow与Airflow OpenMLDB Provider diff --git a/docs/zh/integration/deploy_integration/dolphinscheduler_task_demo.md b/docs/zh/integration/deploy_integration/dolphinscheduler_task_demo.md index ac869925505..da484e5dad7 100644 --- a/docs/zh/integration/deploy_integration/dolphinscheduler_task_demo.md +++ b/docs/zh/integration/deploy_integration/dolphinscheduler_task_demo.md @@ -31,7 +31,7 @@ OpenMLDB 希望能达成开发即上线的目标,让开发回归本质,而 测试可以在macOS或Linux上运行,推荐在我们提供的 OpenMLDB 镜像内进行演示测试。我们将在这个容器中启动OpenMLDB和DolphinScheduler,暴露DolphinScheduler的web端口: ``` -docker run -it -p 12345:12345 4pdosc/openmldb:0.8.2 bash +docker run -it -p 12345:12345 4pdosc/openmldb:0.8.3 bash ``` ```{attention} DolphinScheduler 需要配置租户,是操作系统的用户,并且该用户需要有 sudo 权限。所以推荐在 OpenMLDB 容器内下载并启动 DolphinScheduler。否则,请准备有sudo权限的操作系统用户。 diff --git a/docs/zh/integration/online_datasources/kafka_connector_demo.md b/docs/zh/integration/online_datasources/kafka_connector_demo.md index e0cbdba9d6e..7dffd7be109 100644 --- a/docs/zh/integration/online_datasources/kafka_connector_demo.md +++ b/docs/zh/integration/online_datasources/kafka_connector_demo.md @@ -21,7 +21,7 @@ OpenMLDB Kafka Connector实现见[extensions/kafka-connect-jdbc](https://github. 我们推荐你将下载的三个文件包都绑定到文件目录`kafka`。当然,也可以在启动容器后,再进行文件包的下载。我们假设文件包都在`/work/kafka`目录中。 ``` -docker run -it -v `pwd`:/work/kafka 4pdosc/openmldb:0.8.2 bash +docker run -it -v `pwd`:/work/kafka 4pdosc/openmldb:0.8.3 bash ``` ### 注意事项 diff --git a/docs/zh/integration/online_datasources/pulsar_connector_demo.md b/docs/zh/integration/online_datasources/pulsar_connector_demo.md index 267e16614f4..7277f039ee9 100644 --- a/docs/zh/integration/online_datasources/pulsar_connector_demo.md +++ b/docs/zh/integration/online_datasources/pulsar_connector_demo.md @@ -35,7 +35,7 @@ Apache Pulsar是一个云原生的,分布式消息流平台。它可以作为O ``` 我们更推荐你使用‘host network’模式运行docker,以及绑定文件目录‘files’,sql脚本在该目录中。 ``` -docker run -dit --network host -v `pwd`/files:/work/pulsar_files --name openmldb 4pdosc/openmldb:0.8.2 bash +docker run -dit --network host -v `pwd`/files:/work/pulsar_files --name openmldb 4pdosc/openmldb:0.8.3 bash docker exec -it openmldb bash ``` diff --git a/docs/zh/quickstart/openmldb_quickstart.md b/docs/zh/quickstart/openmldb_quickstart.md index 3d252f1fc3b..6a0191b09f1 100644 --- a/docs/zh/quickstart/openmldb_quickstart.md +++ b/docs/zh/quickstart/openmldb_quickstart.md @@ -19,7 +19,7 @@ OpenMLDB 的主要使用场景为作为机器学习的实时特征平台。其 在命令行执行以下命令拉取 OpenMLDB 镜像,并启动 Docker 容器: ```bash -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` ```{note} diff --git a/docs/zh/quickstart/sdk/java_sdk.md b/docs/zh/quickstart/sdk/java_sdk.md index 3f8534518b4..966d50db785 100644 --- a/docs/zh/quickstart/sdk/java_sdk.md +++ b/docs/zh/quickstart/sdk/java_sdk.md @@ -12,12 +12,12 @@ Java SDK中,JDBC Statement的默认执行模式为在线,SqlClusterExecutor com.4paradigm.openmldb openmldb-jdbc - 0.8.2 + 0.8.3 com.4paradigm.openmldb openmldb-native - 0.8.2 + 0.8.3 ``` @@ -29,16 +29,16 @@ Java SDK中,JDBC Statement的默认执行模式为在线,SqlClusterExecutor com.4paradigm.openmldb openmldb-jdbc - 0.8.2 + 0.8.3 com.4paradigm.openmldb openmldb-native - 0.8.2-macos + 0.8.3-macos ``` -注意:由于 openmldb-native 中包含了 OpenMLDB 编译的 C++ 静态库,默认是 Linux 静态库,macOS 上需将上述 openmldb-native 的 version 改成 `0.8.2-macos`,openmldb-jdbc 的版本保持不变。 +注意:由于 openmldb-native 中包含了 OpenMLDB 编译的 C++ 静态库,默认是 Linux 静态库,macOS 上需将上述 openmldb-native 的 version 改成 `0.8.3-macos`,openmldb-jdbc 的版本保持不变。 openmldb-native 的 macOS 版本只支持 macOS 12,如需在 macOS 11 或 macOS 10.15上运行,需在相应 OS 上源码编译 openmldb-native 包,详细编译方法见[并发编译 Java SDK](https://openmldb.ai/docs/zh/main/deploy/compile.html#java-sdk)。使用自编译的 openmldb-native 包,推荐使用`mvn install`安装到本地仓库,然后在 pom 中引用本地仓库的 openmldb-native 包,不建议用`scope=system`的方式引用。 diff --git a/docs/zh/reference/ip_tips.md b/docs/zh/reference/ip_tips.md index 846bd520088..fad3d3e0944 100644 --- a/docs/zh/reference/ip_tips.md +++ b/docs/zh/reference/ip_tips.md @@ -52,15 +52,15 @@ curl http:///dbs/foo -X POST -d'{"mode":"online", "sql":"show component - 暴露端口,也需要修改apiserver的endpoint改为`0.0.0.0`。这样可以使用127.0.0.1或是公网ip访问到 APIServer。 单机版: ``` - docker run -p 8080:8080 -it 4pdosc/openmldb:0.8.2 bash + docker run -p 8080:8080 -it 4pdosc/openmldb:0.8.3 bash ``` 集群版: ``` - docker run -p 9080:9080 -it 4pdosc/openmldb:0.8.2 bash + docker run -p 9080:9080 -it 4pdosc/openmldb:0.8.3 bash ``` - 使用host网络,可以不用修改endpoint配置。缺点是容易引起端口冲突。 ``` - docker run --network host -it 4pdosc/openmldb:0.8.2 bash + docker run --network host -it 4pdosc/openmldb:0.8.3 bash ``` 如果是跨主机访问容器 onebox 中的 APIServer,可以**任选一种**下面的方式: @@ -126,17 +126,17 @@ cd /work/openmldb/conf/ && ls | grep -v _ | xargs sed -i s/0.0.0.0//g && cd 单机版需要暴露三个组件(nameserver,tabletserver,APIServer)的端口: ``` -docker run -p 6527:6527 -p 9921:9921 -p 8080:8080 -it 4pdosc/openmldb:0.8.2 bash +docker run -p 6527:6527 -p 9921:9921 -p 8080:8080 -it 4pdosc/openmldb:0.8.3 bash ``` 集群版需要暴露zk端口与所有组件的端口: ``` -docker run -p 2181:2181 -p 7527:7527 -p 10921:10921 -p 10922:10922 -p 8080:8080 -p 9902:9902 -it 4pdosc/openmldb:0.8.2 bash +docker run -p 2181:2181 -p 7527:7527 -p 10921:10921 -p 10922:10922 -p 8080:8080 -p 9902:9902 -it 4pdosc/openmldb:0.8.3 bash ``` - 使用host网络,可以不用修改 endpoint 配置。如果有端口冲突,请修改 server 的端口配置。 ``` -docker run --network host -it 4pdosc/openmldb:0.8.2 bash +docker run --network host -it 4pdosc/openmldb:0.8.3 bash ``` 如果是跨主机使用 CLI/SDK 访问问容器onebox,只能通过`--network host`,并更改所有endpoint为公网IP,才能顺利访问。 diff --git a/docs/zh/tutorial/standalone_use.md b/docs/zh/tutorial/standalone_use.md index 4cc7eee9bea..df27c8307de 100644 --- a/docs/zh/tutorial/standalone_use.md +++ b/docs/zh/tutorial/standalone_use.md @@ -11,7 +11,7 @@ 执行以下命令拉取 OpenMLDB 镜像,并启动 Docker 容器: ```bash -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` 成功启动容器以后,本教程中的后续命令默认均在容器内执行。 diff --git a/docs/zh/use_case/JD_recommendation.md b/docs/zh/use_case/JD_recommendation.md index 143666d58ec..d4035be912a 100644 --- a/docs/zh/use_case/JD_recommendation.md +++ b/docs/zh/use_case/JD_recommendation.md @@ -74,7 +74,7 @@ docker pull oneflowinc/oneflow-serving:nightly 由于 OpenMLDB 集群需要和其他组件网络通信,我们直接使用 host 网络。本例将在容器中使用已下载的脚本,所以请将数据脚本所在目录 `demodir` 映射为容器中的目录: ```bash -docker run -dit --name=openmldb --network=host -v $demodir:/work/oneflow_demo 4pdosc/openmldb:0.8.2 bash +docker run -dit --name=openmldb --network=host -v $demodir:/work/oneflow_demo 4pdosc/openmldb:0.8.3 bash docker exec -it openmldb bash ``` diff --git a/docs/zh/use_case/talkingdata_demo.md b/docs/zh/use_case/talkingdata_demo.md index 1baff5ea2e2..c47bc9a652a 100755 --- a/docs/zh/use_case/talkingdata_demo.md +++ b/docs/zh/use_case/talkingdata_demo.md @@ -16,7 +16,7 @@ **启动 Docker** ``` -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` #### 1.1.2 在本地运行 diff --git a/docs/zh/use_case/taxi_tour_duration_prediction.md b/docs/zh/use_case/taxi_tour_duration_prediction.md index 21d2c50fee6..faaff3bf922 100644 --- a/docs/zh/use_case/taxi_tour_duration_prediction.md +++ b/docs/zh/use_case/taxi_tour_duration_prediction.md @@ -15,7 +15,7 @@ 在命令行执行以下命令拉取 OpenMLDB 镜像,并启动 Docker 容器: ```bash -docker run -it 4pdosc/openmldb:0.8.2 bash +docker run -it 4pdosc/openmldb:0.8.3 bash ``` 该镜像预装了OpenMLDB,并预置了本案例所需要的所有脚本、三方库、开源工具以及训练数据。 diff --git a/release/conf/openmldb-env.sh b/release/conf/openmldb-env.sh index d2967bdb777..c86d84aebd1 100644 --- a/release/conf/openmldb-env.sh +++ b/release/conf/openmldb-env.sh @@ -1,5 +1,5 @@ #! /usr/bin/env bash -export OPENMLDB_VERSION=0.8.2 +export OPENMLDB_VERSION=0.8.3 # openmldb mode: standalone / cluster export OPENMLDB_MODE=${OPENMLDB_MODE:=standalone} # tablet port diff --git a/steps/upgrade_docs_version.sh b/steps/upgrade_docs_version.sh index 7199962e667..e73dfdf0b4b 100644 --- a/steps/upgrade_docs_version.sh +++ b/steps/upgrade_docs_version.sh @@ -62,8 +62,8 @@ do upgrade_docker "$file" done -upgrade_java_sdk "docs/en/quickstart/java_sdk.md" upgrade_java_sdk "docs/zh/quickstart/sdk/java_sdk.md" +upgrade_java_sdk "docs/en/quickstart/sdk/java_sdk.md" cd demo/java_quickstart/demo || exit mvn versions:use-dep-version -Dincludes=com.4paradigm.openmldb:openmldb-jdbc -DdepVersion="${VERSION}" -DforceVersion=true cd - || exit From c0234c658e42b456cef8accd2072d4f23e2276fc Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Tue, 19 Sep 2023 10:34:20 +0800 Subject: [PATCH 054/111] build(deps-dev): bump certifi from 2022.12.7 to 2023.7.22 in /docs (#3508) Bumps [certifi](https://github.com/certifi/python-certifi) from 2022.12.7 to 2023.7.22. - [Commits](https://github.com/certifi/python-certifi/compare/2022.12.07...2023.07.22) --- updated-dependencies: - dependency-name: certifi dependency-type: indirect ... Signed-off-by: dependabot[bot] Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> --- docs/poetry.lock | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/docs/poetry.lock b/docs/poetry.lock index 01f5d11fa68..b2e0c52c7c0 100644 --- a/docs/poetry.lock +++ b/docs/poetry.lock @@ -1,4 +1,4 @@ -# This file is automatically @generated by Poetry 1.5.1 and should not be changed by hand. +# This file is automatically @generated by Poetry 1.6.1 and should not be changed by hand. [[package]] name = "alabaster" @@ -45,13 +45,13 @@ lxml = ["lxml"] [[package]] name = "certifi" -version = "2022.12.7" +version = "2023.7.22" description = "Python package for providing Mozilla's CA Bundle." optional = false python-versions = ">=3.6" files = [ - {file = "certifi-2022.12.7-py3-none-any.whl", hash = "sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18"}, - {file = "certifi-2022.12.7.tar.gz", hash = "sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3"}, + {file = "certifi-2023.7.22-py3-none-any.whl", hash = "sha256:92d6037539857d8206b8f6ae472e8b77db8058fec5937a1ef3f54304089edbb9"}, + {file = "certifi-2023.7.22.tar.gz", hash = "sha256:539cc1d13202e33ca466e88b2807e29f4c13049d6d87031a3c110744495cb082"}, ] [[package]] From 9190ecfb473171b9194d92a308c9b6202599a7eb Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Mon, 25 Sep 2023 13:01:41 +0800 Subject: [PATCH 055/111] fix(#3941): support window union multiple join in request mode (#3493) --- cases/query/window_query.yaml | 68 +++++++++++++++++++ hybridse/include/vm/schemas_context.h | 7 +- .../physical/group_and_sort_optimized.cc | 13 ++-- hybridse/src/vm/runner.cc | 1 + hybridse/src/vm/schemas_context.cc | 40 ++++++++++- 5 files changed, 121 insertions(+), 8 deletions(-) diff --git a/cases/query/window_query.yaml b/cases/query/window_query.yaml index 24ac38afe4f..84365be97f7 100644 --- a/cases/query/window_query.yaml +++ b/cases/query/window_query.yaml @@ -833,3 +833,71 @@ cases: 200, 1, 1, 1 300, 0, 0, 0 400, 1, 0, 0 + + - id: 23 + sql: | + select + gp_id, + count(gp_id) over w as cnt, + -- t2 matches and t3 not matches + count_where(gp_id, not is_null(lcond) and is_null(cond)) over w as feat1, + from (select id as gp_id, 0 as lcond, 0 as cond, cast(90000 as timestamp) as ts from request) + window w as ( + union (select t1.gp_id, t2.cond as lcond, t3.cond as cond, t1.ts from + t1 last join t2 on t1.gp_id = t2.account + last join t3 on t1.cond = t3.cond) + partition by gp_id order by ts + rows between unbounded preceding and current row + exclude current_row instance_not_in_window + ) + inputs: + - name: request + columns: ["id int"] + indexs: ['idx:id'] + data: | + 100 + 200 + 300 + 400 + - name: t1 + columns: + - gp_id int + - cond int + - ts timestamp + indexs: + - idx2:gp_id:ts + data: | + 100, 201, 10000 + 100, 201, 10000 + 200, 203, 10000 + 400, 204, 10000 + 400, 205, 10000 + - name: t2 + columns: + - account int + - cond int + - ts timestamp + indexs: ["idx1:account:ts"] + data: | + 100, 201, 1000 + 200, 203, 4000 + 400, 209, 4000 + - name: t3 + columns: + - cond int + - ts timestamp + indexs: ["idx3:cond:ts"] + data: | + 201, 1000 + 208, 1000 + expect: + columns: + - gp_id int + - cnt int64 + - feat1 int64 + order: gp_id + data: | + 100, 2, 0 + 200, 1, 1 + 300, 0, 0 + 400, 2, 2 diff --git a/hybridse/include/vm/schemas_context.h b/hybridse/include/vm/schemas_context.h index 43731f076cc..1541c64201d 100644 --- a/hybridse/include/vm/schemas_context.h +++ b/hybridse/include/vm/schemas_context.h @@ -58,7 +58,8 @@ class SchemaSource { size_t size() const; void Clear(); - std::string ToString() const; + std::string DebugString() const; + friend std::ostream& operator<<(std::ostream& os, const SchemaSource& sc) { return os << sc.DebugString(); } private: bool CheckSourceSetIndex(size_t idx) const; @@ -246,6 +247,10 @@ class SchemasContext { void BuildTrivial(const std::vector& schemas); void BuildTrivial(const std::string& default_db, const std::vector& tables); + std::string DebugString() const; + + friend std::ostream& operator<<(std::ostream& os, const SchemasContext& sc) { return os << sc.DebugString(); } + private: bool IsColumnAmbiguous(const std::string& column_name) const; diff --git a/hybridse/src/passes/physical/group_and_sort_optimized.cc b/hybridse/src/passes/physical/group_and_sort_optimized.cc index 2c10529fcc7..287919d9406 100644 --- a/hybridse/src/passes/physical/group_and_sort_optimized.cc +++ b/hybridse/src/passes/physical/group_and_sort_optimized.cc @@ -393,8 +393,8 @@ bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx return false; } PhysicalSimpleProjectNode* new_simple_op = nullptr; - Status status = plan_ctx_->CreateOp( - &new_simple_op, new_depend, simple_project->project()); + Status status = + plan_ctx_->CreateOp(&new_simple_op, new_depend, simple_project->project()); if (!status.isOK()) { LOG(WARNING) << "Fail to create simple project op: " << status; return false; @@ -442,11 +442,16 @@ bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx index_key, right_key, sort, &new_depend)) { return false; } - if (!ResetProducer(plan_ctx_, request_join, 0, new_depend)) { + PhysicalRequestJoinNode* new_join = nullptr; + auto s = plan_ctx_->CreateOp(&new_join, new_depend, request_join->GetProducer(1), + request_join->join(), + request_join->output_right_only()); + if (!s.isOK()) { + LOG(WARNING) << "Fail to create new request join op: " << s; return false; } - *new_in = request_join; + *new_in = new_join; return true; } return false; diff --git a/hybridse/src/vm/runner.cc b/hybridse/src/vm/runner.cc index a15a2626bf3..2072715c613 100644 --- a/hybridse/src/vm/runner.cc +++ b/hybridse/src/vm/runner.cc @@ -44,6 +44,7 @@ static bool IsPartitionProvider(vm::PhysicalOpNode* n) { switch (n->GetOpType()) { case kPhysicalOpSimpleProject: case kPhysicalOpRename: + case kPhysicalOpRequestJoin: return IsPartitionProvider(n->GetProducer(0)); case kPhysicalOpDataProvider: return dynamic_cast(n)->provider_type_ == kProviderTypePartition; diff --git a/hybridse/src/vm/schemas_context.cc b/hybridse/src/vm/schemas_context.cc index 9bff83940bb..214da20caa5 100644 --- a/hybridse/src/vm/schemas_context.cc +++ b/hybridse/src/vm/schemas_context.cc @@ -15,7 +15,10 @@ */ #include "vm/schemas_context.h" + #include + +#include "absl/strings/str_join.h" #include "passes/physical/physical_pass.h" #include "vm/physical_op.h" @@ -121,14 +124,18 @@ size_t SchemaSource::size() const { return schema_ == nullptr ? 0 : schema_->size(); } -std::string SchemaSource::ToString() const { +// output: {db}.{table}[ {name}:{type}:{id}, ... ] +std::string SchemaSource::DebugString() const { std::stringstream ss; + ss << source_db_ << "." << source_name_ << "["; for (size_t i = 0; i < column_ids_.size(); ++i) { + ss << schema_->Get(i).name() << ":" << node::TypeName(schema_->Get(i).type()) << ":"; ss << "#" << std::to_string(column_ids_[i]); if (i < column_ids_.size() - 1) { ss << ", "; } } + ss << "]"; return ss.str(); } @@ -173,7 +180,7 @@ void SchemasContext::Merge(size_t child_idx, const SchemasContext* child) { db_name = source->GetSourceDB(); } std::string rel_name = child->GetName(); - if (rel_name.empty()&& !source->GetSourceName().empty()) { + if (rel_name.empty() && !source->GetSourceName().empty()) { rel_name = source->GetSourceName(); } new_source->SetSourceDBAndTableName(db_name, rel_name); @@ -751,7 +758,34 @@ void SchemasContext::BuildTrivial( this->Build(); } -RowParser::RowParser(const SchemasContext* schema_ctx) : schema_ctx_(schema_ctx) { +std::string SchemasContext::DebugString() const { + std::stringstream ss; + ss << absl::StrCat("{", root_db_name_, ",", root_relation_name_, ",", default_db_name_, ", ", + absl::StrJoin(schema_sources_, ",", [](std::string* out, const SchemaSource* source) { + absl::StrAppend(out, source->DebugString()); + })); + ss << ", id_map={" + << absl::StrJoin(column_id_map_, ",", [](std::string* out, decltype(column_id_map_)::const_reference e) { + absl::StrAppend(out, e.first, "=(", e.second.first, ",", e.second.second, ")"); + }) << "}, "; + ss << "name_map={" + << absl::StrJoin(column_name_map_, ",", + [](std::string* out, decltype(column_name_map_)::const_reference e) { + absl::StrAppend( + out, e.first, "=[", + absl::StrJoin(e.second, ",", + [](std::string* out, decltype(e.second)::const_reference ref) { + absl::StrAppend(out, "(", ref.first, ",", ref.second, ")"); + }), + "]"); + }) + << "}"; + ss << "}"; + return ss.str(); +} + +RowParser::RowParser(const SchemasContext* schema_ctx) + : schema_ctx_(schema_ctx) { for (size_t i = 0; i < schema_ctx_->GetSchemaSourceSize(); ++i) { auto source = schema_ctx_->GetSchemaSource(i); row_view_list_.push_back(codec::RowView(*source->GetSchema())); From 116fbf57af24c70d24588f31c695b4d2a30c28a0 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Sat, 7 Oct 2023 22:26:30 +0800 Subject: [PATCH 056/111] feat(udf): support `datediff` dates before 1900 (#3499) --- hybridse/src/codegen/udf_ir_builder_test.cc | 42 +++++++- hybridse/src/udf/default_udf_library.cc | 28 +++--- hybridse/src/udf/udf.cc | 106 +++++++++++++++----- hybridse/src/udf/udf.h | 10 +- 4 files changed, 134 insertions(+), 52 deletions(-) diff --git a/hybridse/src/codegen/udf_ir_builder_test.cc b/hybridse/src/codegen/udf_ir_builder_test.cc index 13a82a1a925..6cd82be7859 100644 --- a/hybridse/src/codegen/udf_ir_builder_test.cc +++ b/hybridse/src/codegen/udf_ir_builder_test.cc @@ -1078,14 +1078,21 @@ TEST_F(UdfIRBuilderTest, DateDiff) { CheckUdf, Nullable, Nullable>(func_name, 44924, "2022-12-31", "1900-01-01"); CheckUdf, Nullable, Nullable>(func_name, 50, "20220620", "2022-05-01 11:11:11"); - CheckUdf, Nullable, Nullable>(func_name, 0, "2022-05-01", "20220501"); + CheckUdf, Nullable, Nullable>(func_name, 0, + "2022-05-01", "20220501"); CheckUdf, Nullable, Nullable>(func_name, nullptr, "2022-02-29", "20220501"); - CheckUdf, Nullable, Nullable>(func_name, nullptr, "1899-05-20", - "2020-05-20"); + CheckUdf, Nullable, Nullable>(func_name, 9, "1899-05-20", "1899-05-11"); CheckUdf, Nullable, Nullable>(func_name, nullptr, "2022-05-40", "2020-05-20"); - CheckUdf, Nullable, Nullable>(func_name, nullptr, "2020-05-20", - "1899-05-20"); + CheckUdf, Nullable, Nullable>(func_name, -30, "1199-10-12", "1199-11-11"); + // rfc3399 full format + CheckUdf, Nullable, Nullable>( + func_name, 20, "2000-01-01t00:12:00.1+08:00", "1999-12-12T12:12:12+08:00"); + CheckUdf, Nullable, Nullable>( + func_name, 19, "2000-01-01t00:12:00.1+08:00", "1999-12-12T20:12:12Z"); + CheckUdf, Nullable, Nullable>( + func_name, 20, "2000-01-01t06:12:00.1+08:00", "1999-12-12T12:12:12Z"); + CheckUdf, Nullable, Nullable>(func_name, nullptr, nullptr, "20220501"); CheckUdf, Nullable, Nullable>(func_name, nullptr, "2022-05-01", nullptr); CheckUdf, Nullable, Nullable>(func_name, nullptr, nullptr, nullptr); @@ -1093,6 +1100,8 @@ TEST_F(UdfIRBuilderTest, DateDiff) { // mix types CheckUdf, Nullable, Nullable>(func_name, -19, "2022-05-01", Date(2022, 5, 20)); CheckUdf, Nullable, Nullable>(func_name, 19, Date(2022, 5, 20), "2022-05-01"); + CheckUdf, Nullable, Nullable>(func_name, 3, Date(1900, 1, 1), "1899-12-29"); + CheckUdf, Nullable, Nullable>(func_name, -3, "1899-12-29", Date(1900, 1, 1)); CheckUdf, Nullable, Nullable>(func_name, nullptr, nullptr, "2022-05-01"); CheckUdf, Nullable, Nullable>(func_name, nullptr, Date(2022, 5, 20), nullptr); CheckUdf, Nullable, Nullable>(func_name, nullptr, nullptr, nullptr); @@ -1101,6 +1110,29 @@ TEST_F(UdfIRBuilderTest, DateDiff) { CheckUdf, Nullable, Nullable>(func_name, nullptr, nullptr, nullptr); } +TEST_F(UdfIRBuilderTest, DateDiffNull) { + auto func_name = "datediff"; + + // out-of-range format + CheckUdf, Nullable, Nullable>(func_name, nullptr, "1900-01-00", + "1999-12-12T12:12:12Z"); + CheckUdf, Nullable, Nullable>(func_name, nullptr, "1977-13-01", + "1999-12-12T12:12:12Z"); + CheckUdf, Nullable, Nullable>(func_name, nullptr, "19771232", + "1999-12-12T12:12:12Z"); + CheckUdf, Nullable, Nullable>(func_name, nullptr, "1999-12-12T25:12:12Z", + "1999-12-12T12:12:12Z"); + CheckUdf, Nullable, Nullable>(func_name, nullptr, "1999-12-12T12:66:12Z", + "1999-12-12T12:12:12Z"); + CheckUdf, Nullable, Nullable>(func_name, nullptr, "1999-12-12T12:00:61Z", + "1999-12-12T12:12:12Z"); + + // invalid format + CheckUdf, Nullable, Nullable>(func_name, nullptr, "1999-12-12T12:12:12Z", + "202 2-12-2 9"); + CheckUdf, Nullable, Nullable>(func_name, nullptr, "1999-12-12T12:12:12Z", + "12:30:30"); +} class UdfIRCastTest : public ::testing::TestWithParam>> {}; diff --git a/hybridse/src/udf/default_udf_library.cc b/hybridse/src/udf/default_udf_library.cc index f2c9bc1afd8..8b98212fffb 100644 --- a/hybridse/src/udf/default_udf_library.cc +++ b/hybridse/src/udf/default_udf_library.cc @@ -2591,16 +2591,21 @@ void DefaultUdfLibrary::InitTimeAndDateUdf() { }); RegisterExternal("datediff") - .args(reinterpret_cast(static_cast(v1::date_diff))) - .return_by_arg(true) - .returns>() + .args(static_cast(v1::date_diff)) .doc(R"( @brief days difference from date1 to date2 Supported date string style: - yyyy-mm-dd - yyyymmdd - - yyyy-mm-dd hh:mm:ss + - yyyy-mm-dd HH:MM:SS + - yyyy-mm-ddTHH:MM:SS.fff+HH:MM (RFC3399 format) + + Dates from string are transformed into the same time zone (which is currently always UTC+8) before differentiation, + dates from date type by default is at UTC+8, you may see a +1/-1 difference if the two date string have different time zones. + + Hint: since openmldb date type limits range from year 1900, to datadiff from/to a date before + 1900, pass it as string. Example: @@ -2614,20 +2619,11 @@ void DefaultUdfLibrary::InitTimeAndDateUdf() { @endcode @since 0.7.0)"); RegisterExternal("datediff") - .args( - reinterpret_cast(static_cast(v1::date_diff))) - .return_by_arg(true) - .returns>(); + .args(static_cast(v1::date_diff)); RegisterExternal("datediff") - .args( - reinterpret_cast(static_cast(v1::date_diff))) - .return_by_arg(true) - .returns>(); + .args(static_cast(v1::date_diff)); RegisterExternal("datediff") - .args( - reinterpret_cast(static_cast(v1::date_diff))) - .return_by_arg(true) - .returns>(); + .args(static_cast(v1::date_diff)); RegisterExternal("unix_timestamp") .args(reinterpret_cast(static_cast(v1::date_to_unix_timestamp))) diff --git a/hybridse/src/udf/udf.cc b/hybridse/src/udf/udf.cc index c32a58b8adb..2ec7033472f 100644 --- a/hybridse/src/udf/udf.cc +++ b/hybridse/src/udf/udf.cc @@ -16,7 +16,6 @@ #include "udf/udf.h" -#include #include #include @@ -28,6 +27,7 @@ #include "absl/strings/ascii.h" #include "absl/strings/str_replace.h" #include "absl/time/civil_time.h" +#include "absl/time/time.h" #include "base/iterator.h" #include "boost/date_time.hpp" #include "boost/date_time/gregorian/parsers.hpp" @@ -37,7 +37,7 @@ #include "codec/row.h" #include "codec/type_codec.h" #include "codegen/fn_ir_builder.h" -#include "farmhash.h" // NOLINT +#include "farmhash.h" #include "node/node_manager.h" #include "node/sql_node.h" #include "re2/re2.h" @@ -57,6 +57,20 @@ using openmldb::base::StringRef; using openmldb::base::Timestamp; using openmldb::base::Date; +// strftime()-like formatting options with extensions +// ref absl::FormatTime +static constexpr char DATE_FMT_YMD_1[] = "%E4Y-%m-%d"; +static constexpr char DATE_FMT_YMD_2[] = "%E4Y%m%d"; +static constexpr char DATE_FMT_YMDHMS[] = "%E4Y-%m-%d %H:%M:%S"; +static constexpr char DATE_FMT_RF3399_FULL[] = "%Y-%m-%d%ET%H:%M:%E*S%Ez"; + +// TODO(chenjing): 时区统一配置 +static constexpr int32_t TZ = 8; +static const absl::TimeZone DEFAULT_TZ = absl::FixedTimeZone(TZ * 60 * 60); +static constexpr time_t TZ_OFFSET = TZ * 3600000; +static constexpr int MAX_ALLOC_SIZE = 2 * 1024 * 1024; // 2M +bthread_key_t B_THREAD_LOCAL_MEM_POOL_KEY; + void hex(StringRef *str, StringRef *output) { std::ostringstream ss; for (uint32_t i=0; i < str->size_; i++) { @@ -104,12 +118,6 @@ void unhex(StringRef *str, StringRef *output, bool* is_null) { } } -// TODO(chenjing): 时区统一配置 -constexpr int32_t TZ = 8; -constexpr time_t TZ_OFFSET = TZ * 3600000; -constexpr int MAX_ALLOC_SIZE = 2 * 1024 * 1024; // 2M -bthread_key_t B_THREAD_LOCAL_MEM_POOL_KEY; - void trivial_fun() {} void dayofyear(int64_t ts, int32_t* out, bool* is_null) { @@ -818,7 +826,26 @@ void string_to_date(StringRef *str, Date *output, return; } -void date_diff(Date *date1, Date *date2, int *diff, bool *is_null) { +absl::StatusOr string_to_time(absl::string_view ref) { + absl::string_view fmt = DATE_FMT_RF3399_FULL; + if (19 == ref.size()) { + fmt = DATE_FMT_YMDHMS; + } else if (10 == ref.size()) { + fmt = DATE_FMT_YMD_1; + } else if (8 == ref.size()) { + fmt = DATE_FMT_YMD_2; + } + absl::Time tm; + std::string err; + bool ret = absl::ParseTime(fmt, ref, &tm, &err); + + if (!ret) { + return absl::InvalidArgumentError(err); + } + return tm; +} + +void date_diff(Date *date1, Date *date2, int32_t *diff, bool *is_null) { if (date1 == nullptr || date2 == nullptr || date1->date_ <= 0 || date2->date_ <= 0) { *is_null = true; return; @@ -838,36 +865,61 @@ void date_diff(Date *date1, Date *date2, int *diff, bool *is_null) { *is_null = false; } -void date_diff(StringRef *date1, StringRef *date2, int *diff, bool *is_null) { - Date d1; - string_to_date(date1, &d1, is_null); - if (*is_null) { +void date_diff(StringRef *date1, StringRef *date2, int32_t *diff, bool *is_null) { + auto t1 = string_to_time(absl::string_view(date1->data_, date1->size_)); + if (!t1.ok()) { + *is_null = true; return; } - Date d2; - string_to_date(date2, &d2, is_null); - if (*is_null) { + auto t2 = string_to_time(absl::string_view(date2->data_, date2->size_)); + if (!t2.ok()) { + *is_null = true; return; } - date_diff(&d1, &d2, diff, is_null); + + auto d1 = absl::ToCivilDay(t1.value(), DEFAULT_TZ); + auto d2 = absl::ToCivilDay(t2.value(), DEFAULT_TZ); + + *diff = d1 - d2; + *is_null = false; } -void date_diff(StringRef *date1, Date *date2, int *diff, bool *is_null) { - Date d1; - string_to_date(date1, &d1, is_null); - if (*is_null) { +void date_diff(StringRef *date1, Date *date2, int32_t *diff, bool *is_null) { + auto t1 = string_to_time(absl::string_view(date1->data_, date1->size_)); + if (!t1.ok()) { + *is_null = true; return; } - date_diff(&d1, date2, diff, is_null); + auto d1 = absl::ToCivilDay(t1.value(), DEFAULT_TZ); + + int32_t year, month, day; + if (!Date::Decode(date2->date_, &year, &month, &day)) { + *is_null = true; + return; + } + auto d2 = absl::CivilDay(year, month, day); + + *diff = d1 - d2; + *is_null = false; } -void date_diff(Date *date1, StringRef *date2, int *diff, bool *is_null) { - Date d2; - string_to_date(date2, &d2, is_null); - if (*is_null) { +void date_diff(Date *date1, StringRef *date2, int32_t *diff, bool *is_null) { + auto t2 = string_to_time(absl::string_view(date2->data_, date2->size_)); + if (!t2.ok()) { + *is_null = true; return; } - date_diff(date1, &d2, diff, is_null); + auto d2 = absl::ToCivilDay(t2.value(), DEFAULT_TZ); + + int32_t year, month, day; + if (!Date::Decode(date1->date_, &year, &month, &day)) { + *is_null = true; + return; + } + auto d1 = absl::CivilDay(year, month, day); + + *diff = d1 - d2; + *is_null = false; } // cast string to timestamp with yyyy-mm-dd or YYYY-mm-dd HH:MM:SS diff --git a/hybridse/src/udf/udf.h b/hybridse/src/udf/udf.h index c2f2d2dc6f0..a761e99f88b 100644 --- a/hybridse/src/udf/udf.h +++ b/hybridse/src/udf/udf.h @@ -367,10 +367,10 @@ void timestamp_to_date(Timestamp *timestamp, Date *output, bool *is_null); void date_to_string(Date *date, StringRef *output); -void date_diff(Date *date1, Date *date2, int *diff, bool *is_null); -void date_diff(StringRef *date1, StringRef *date2, int *diff, bool *is_null); -void date_diff(StringRef *date1, Date *date2, int *diff, bool *is_null); -void date_diff(Date *date1, StringRef *date2, int *diff, bool *is_null); +void date_diff(Date *date1, Date *date2, int32_t *diff, bool *is_null); +void date_diff(StringRef *date1, StringRef *date2, int32_t *diff, bool *is_null); +void date_diff(StringRef *date1, Date *date2, int32_t *diff, bool *is_null); +void date_diff(Date *date1, StringRef *date2, int32_t *diff, bool *is_null); void like(StringRef *name, StringRef *pattern, StringRef *escape, bool *out, bool *is_null); @@ -384,6 +384,8 @@ void regexp_like(StringRef *name, StringRef *pattern, bool *out, bool *is_null); void date_to_timestamp(Date *date, Timestamp *output, bool *is_null); void string_to_date(StringRef *str, Date *output, bool *is_null); +absl::StatusOr string_to_time(absl::string_view str); + void string_to_timestamp(StringRef *str, Timestamp *output, bool *is_null); void date_to_unix_timestamp(Date *date, int64_t *output, bool *is_null); void string_to_unix_timestamp(StringRef *str, int64_t *output, bool *is_null); From bcc0b1f4d633ea6c0c4ab9da182048913c1672c5 Mon Sep 17 00:00:00 2001 From: dl239 Date: Sun, 8 Oct 2023 10:26:53 +0800 Subject: [PATCH 057/111] docs: update version (#3517) --- CMakeLists.txt | 2 +- demo/Dockerfile | 2 +- java/hybridse-native/pom.xml | 2 +- java/hybridse-proto/pom.xml | 2 +- java/hybridse-sdk/pom.xml | 2 +- java/openmldb-batch/pom.xml | 2 +- java/openmldb-batchjob/pom.xml | 2 +- java/openmldb-common/pom.xml | 2 +- java/openmldb-jdbc/pom.xml | 2 +- java/openmldb-native/pom.xml | 2 +- java/openmldb-spark-connector/pom.xml | 2 +- java/openmldb-synctool/pom.xml | 2 +- java/openmldb-taskmanager/pom.xml | 2 +- java/pom.xml | 4 ++-- python/openmldb_sdk/setup.py | 2 +- python/openmldb_tool/setup.py | 2 +- test/integration-test/openmldb-test-python/install.sh | 2 +- 17 files changed, 18 insertions(+), 18 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index a9f10095c38..21066a3c505 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -36,7 +36,7 @@ endif() message (STATUS "CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}") set(OPENMLDB_VERSION_MAJOR 0) set(OPENMLDB_VERSION_MINOR 8) -set(OPENMLDB_VERSION_BUG 2) +set(OPENMLDB_VERSION_BUG 3) function(get_commitid CODE_DIR COMMIT_ID) find_package(Git REQUIRED) diff --git a/demo/Dockerfile b/demo/Dockerfile index e6495931d35..6dc38d46c2b 100644 --- a/demo/Dockerfile +++ b/demo/Dockerfile @@ -25,7 +25,7 @@ COPY *_dist.yml /work/ ENV LANG=en_US.UTF-8 ENV SPARK_HOME=/work/openmldb/spark-3.2.1-bin-openmldbspark -ARG OPENMLDB_VERSION=0.8.2 +ARG OPENMLDB_VERSION=0.8.3 ENV OPENMLDB_VERSION="${OPENMLDB_VERSION}" RUN if [ "${USE_ADD_WHL}" = "true" ] ; then \ diff --git a/java/hybridse-native/pom.xml b/java/hybridse-native/pom.xml index e347b945b6c..629da3b0282 100644 --- a/java/hybridse-native/pom.xml +++ b/java/hybridse-native/pom.xml @@ -5,7 +5,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/hybridse-proto/pom.xml b/java/hybridse-proto/pom.xml index 83b28bdd95f..a78a0da61cf 100644 --- a/java/hybridse-proto/pom.xml +++ b/java/hybridse-proto/pom.xml @@ -4,7 +4,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/hybridse-sdk/pom.xml b/java/hybridse-sdk/pom.xml index e103c064280..ee37ccdf60f 100644 --- a/java/hybridse-sdk/pom.xml +++ b/java/hybridse-sdk/pom.xml @@ -6,7 +6,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/openmldb-batch/pom.xml b/java/openmldb-batch/pom.xml index a2a93ad4d3a..f2da581860d 100644 --- a/java/openmldb-batch/pom.xml +++ b/java/openmldb-batch/pom.xml @@ -7,7 +7,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT openmldb-batch diff --git a/java/openmldb-batchjob/pom.xml b/java/openmldb-batchjob/pom.xml index fddac8ffb82..408cb79e16d 100644 --- a/java/openmldb-batchjob/pom.xml +++ b/java/openmldb-batchjob/pom.xml @@ -7,7 +7,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT openmldb-batchjob diff --git a/java/openmldb-common/pom.xml b/java/openmldb-common/pom.xml index 8bd3e054cce..d42db9b7d54 100644 --- a/java/openmldb-common/pom.xml +++ b/java/openmldb-common/pom.xml @@ -5,7 +5,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT 4.0.0 openmldb-common diff --git a/java/openmldb-jdbc/pom.xml b/java/openmldb-jdbc/pom.xml index 3978579b373..d98f248d811 100644 --- a/java/openmldb-jdbc/pom.xml +++ b/java/openmldb-jdbc/pom.xml @@ -5,7 +5,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/openmldb-native/pom.xml b/java/openmldb-native/pom.xml index 8bd8a8399f3..b9ad048d640 100644 --- a/java/openmldb-native/pom.xml +++ b/java/openmldb-native/pom.xml @@ -5,7 +5,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT ../pom.xml 4.0.0 diff --git a/java/openmldb-spark-connector/pom.xml b/java/openmldb-spark-connector/pom.xml index 3f79972c60a..7431aae760f 100644 --- a/java/openmldb-spark-connector/pom.xml +++ b/java/openmldb-spark-connector/pom.xml @@ -6,7 +6,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT openmldb-spark-connector diff --git a/java/openmldb-synctool/pom.xml b/java/openmldb-synctool/pom.xml index a877d921eac..360f26e26be 100644 --- a/java/openmldb-synctool/pom.xml +++ b/java/openmldb-synctool/pom.xml @@ -6,7 +6,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT openmldb-synctool openmldb-synctool diff --git a/java/openmldb-taskmanager/pom.xml b/java/openmldb-taskmanager/pom.xml index 56aeef8b7c3..e983c4027e2 100644 --- a/java/openmldb-taskmanager/pom.xml +++ b/java/openmldb-taskmanager/pom.xml @@ -6,7 +6,7 @@ openmldb-parent com.4paradigm.openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT openmldb-taskmanager openmldb-taskmanager diff --git a/java/pom.xml b/java/pom.xml index 3a46ab4d5c1..00c893a4201 100644 --- a/java/pom.xml +++ b/java/pom.xml @@ -7,7 +7,7 @@ openmldb-parent pom openmldb - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT hybridse-sdk hybridse-native @@ -65,7 +65,7 @@ - 0.8.2-SNAPSHOT + 0.8.3-SNAPSHOT error 2.9.0 diff --git a/python/openmldb_sdk/setup.py b/python/openmldb_sdk/setup.py index 528250e1822..c96e2ae899b 100644 --- a/python/openmldb_sdk/setup.py +++ b/python/openmldb_sdk/setup.py @@ -18,7 +18,7 @@ setup( name='openmldb', - version='0.8.2a0', + version='0.8.3a0', author='OpenMLDB Team', author_email=' ', url='https://github.com/4paradigm/OpenMLDB', diff --git a/python/openmldb_tool/setup.py b/python/openmldb_tool/setup.py index 097b3c229c8..7b9a8dcf27f 100644 --- a/python/openmldb_tool/setup.py +++ b/python/openmldb_tool/setup.py @@ -18,7 +18,7 @@ setup( name="openmldb-tool", - version="0.8.2a0", + version='0.8.3a0', author="OpenMLDB Team", author_email=" ", url="https://github.com/4paradigm/OpenMLDB", diff --git a/test/integration-test/openmldb-test-python/install.sh b/test/integration-test/openmldb-test-python/install.sh index 9b16e934807..1f2babc873c 100644 --- a/test/integration-test/openmldb-test-python/install.sh +++ b/test/integration-test/openmldb-test-python/install.sh @@ -17,7 +17,7 @@ set -eE -x CURRENT_DIR=$(dirname "$0") -SPARK_VERSION=0.8.2 +SPARK_VERSION=0.8.3 pushd "${CURRENT_DIR}" cp -r ../../../openmldb ./ sed -i"" -e "s/OPENMLDB_MODE:=standalone/OPENMLDB_MODE:=cluster/g" openmldb/conf/openmldb-env.sh From 2224a6cef3e43be632367a1ad4803e94792c6064 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 11 Oct 2023 16:07:41 +0800 Subject: [PATCH 058/111] build: thirdparty parallel compile option & fix centos6 build (#3492) * build: fix centos6 build * fix * fix * fix --- .github/workflows/other-os-build.yml | 46 +++++++++++++++++++--------- Makefile | 4 +-- docs/zh/deploy/compile.md | 22 ++++++++++--- steps/centos6_build.sh | 17 +++++++--- 4 files changed, 64 insertions(+), 25 deletions(-) diff --git a/.github/workflows/other-os-build.yml b/.github/workflows/other-os-build.yml index fcc99fb674b..aa63c3cc19a 100644 --- a/.github/workflows/other-os-build.yml +++ b/.github/workflows/other-os-build.yml @@ -78,41 +78,60 @@ jobs: shell: bash run: | cd /root/OpenMLDB + # centos6_build.sh will try build zetasql even cache hit, just ignore the failure IN_WORKFLOW=true bash steps/centos6_build.sh # bazel bin export PATH=$PATH:`pwd` source /opt/rh/devtoolset-8/enable if [[ "${USE_DEPS_CACHE}" != "true" ]]; then - echo "build thirdparty" - make thirdparty CMAKE_INSTALL_PREFIX=${OPENMLDB_PREFIX} BUILD_BUNDLE=ON NPROC=8 + echo "build thirdparty, make opt is better than nproc?" + make thirdparty CMAKE_INSTALL_PREFIX=${OPENMLDB_PREFIX} BUILD_BUNDLE=ON THIRD_PARTY_CMAKE_FLAGS=-DMAKEOPTS=-j8 + # 5.8G ./.deps, avail 8G rm -rf .deps/build # GitHub runner disk space is limited fi echo "build" + # 1.4G ./.deps, avail 13G + + # will failed if openmldb_sdk is on cmake -S . -B `pwd`/build -DCMAKE_PREFIX_PATH=`pwd`/.deps/usr -DCMAKE_BUILD_TYPE=RelWithDebInfo \ -DSQL_PYSDK_ENABLE=${SQL_PYSDK_ENABLE} -DSQL_JAVASDK_ENABLE=OFF \ -DTESTING_ENABLE=OFF -DCMAKE_INSTALL_PREFIX=${OPENMLDB_PREFIX} \ -DHYBRIDSE_TESTING_ENABLE=OFF -DEXAMPLES_ENABLE=OFF -DEXAMPLES_TESTING_ENABLE=OFF - cmake --build build --target install -- -j2 - # clean up to save disk space(~11G), don't know which is relative, build again in next step - rm -rf build + # target openmldb 6.7G ./build(no py/java), avail 5.2G + # openmldb+cp_python_sdk_so 7.7G ./build(has py), python just ~180M + # target 'install' cost more, preinstall/fast won't build all, so use install/fast if needed + # or https://cmake.org/cmake/help/latest/variable/CMAKE_SKIP_INSTALL_ALL_DEPENDENCY.html + cmake --build build --target openmldb cp_python_sdk_so -- -j2 + du -h --max-depth=1 + df -h + # if target above cost too much disk, make java build failed, try to rm build cache + # don't rm cache now cuz build java from emtpy will cost 20min + # rm build/hybridse build/src -rf if [[ "${SQL_JAVASDK_ENABLE}" == "ON" ]]; then echo "build java sdk" cmake -S . -B `pwd`/build -DCMAKE_PREFIX_PATH=`pwd`/.deps/usr -DCMAKE_BUILD_TYPE=RelWithDebInfo \ -DSQL_PYSDK_ENABLE=OFF -DSQL_JAVASDK_ENABLE=ON \ -DTESTING_ENABLE=OFF -DCMAKE_INSTALL_PREFIX=${OPENMLDB_PREFIX} \ -DHYBRIDSE_TESTING_ENABLE=OFF -DEXAMPLES_ENABLE=OFF -DEXAMPLES_TESTING_ENABLE=OFF - cmake --build build --target sql_javasdk_package -- -j2 + # if build the whole java, 7.6G ./build, 5.7G ./java, avail 331M + # so split it and build native only + # 7.6G ./build, 1.8G ./java, avail 5.2G + cmake --build build --target cp_native_so -- -j2 + du -h --max-depth=1 + df -h + rm build/hybridse build/src -rf + cd java + ./mvnw -pl openmldb-native clean package -DskipTests=true -Dscalatest.skip=true -Dwagon.skip=true -Dmaven.test.skip=true --batch-mode fi - - - name: package - run: | - tar czf ${{ env.OPENMLDB_PREFIX }}.tar.gz ${{ env.OPENMLDB_PREFIX }}/ + rm build/hybridse build/src -rf + du -h --max-depth=1 + df -h - name: upload binary uses: actions/upload-artifact@v2 with: - path: openmldb-*.tar.gz - name: binary-package + path: build/bin/openmldb + name: binary - name: upload java native if: ${{ env.SQL_JAVASDK_ENABLE == 'ON' }} @@ -127,8 +146,7 @@ jobs: with: name: python-whl path: | - python/openmldb_sdk/dist/openmldb*.whl - + python/openmldb_sdk/dist/openmldb*.whl # TODO(hw): upload cxx sdk # macos no need to build thirdparty, but binary/os needs to be built on each os diff --git a/Makefile b/Makefile index 74274755b4b..697b12923af 100644 --- a/Makefile +++ b/Makefile @@ -154,7 +154,7 @@ thirdparty-fast: if [ "$$new_zetasql_version" != "$(ZETASQL_VERSION)" ] ; then \ echo "[deps]: thirdparty up-to-date. reinstall zetasql from $(ZETASQL_VERSION) to $$new_zetasql_version"; \ $(MAKE) thirdparty-configure; \ - $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) -j $(NPROC) --target zetasql; \ + $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) --target zetasql; \ else \ echo "[deps]: all up-to-date. zetasql already installed with version: $(ZETASQL_VERSION)"; \ fi; \ @@ -166,7 +166,7 @@ thirdparty-fast: # third party compiled code install to 'OpenMLDB/.deps/usr', source code install to 'OpenMLDB/thirdsrc' thirdparty: thirdparty-configure - $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) -j $(NPROC) + $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) thirdparty-configure: $(CMAKE_PRG) -S third-party -B $(THIRD_PARTY_BUILD_DIR) -DSRC_INSTALL_DIR=$(THIRD_PARTY_SRC_DIR) -DDEPS_INSTALL_DIR=$(THIRD_PARTY_DIR) $(THIRD_PARTY_CMAKE_FLAGS) diff --git a/docs/zh/deploy/compile.md b/docs/zh/deploy/compile.md index aec38f6a5a3..896009ca2ce 100644 --- a/docs/zh/deploy/compile.md +++ b/docs/zh/deploy/compile.md @@ -110,7 +110,7 @@ make CMAKE_BUILD_TYPE=Debug - CMAKE_EXTRA_FLAGS: 传递给 cmake 的额外参数 - 默认: ‘’ + 默认: '' - BUILD_BUNDLED: 从源码编译 thirdparty 依赖,而不是下载预编译包 @@ -124,6 +124,9 @@ make CMAKE_BUILD_TYPE=Debug 默认: all +- THIRD_PARTY_CMAKE_FLAGS: 编译thirdparty时可以配置额外参数。例如,配置每个thirdparty项目并发编译,`THIRD_PARTY_CMAKE_FLAGS=-DMAKEOPTS=-j8`。thirdparty不受NPROC影响,thirdparty的多项目将会串行执行。 + 默认:'' + ### 并发编译Java SDK ``` @@ -185,14 +188,25 @@ docker run -it -v`pwd`:/root/OpenMLDB ghcr.io/4paradigm/centos6_gcc7_hybridsql b ```bash cd OpenMLDB bash steps/centos6_build.sh +# THIRD_PARTY_CMAKE_FLAGS=-DMAKEOPTS=-j8 bash steps/centos6_build.sh # run fast when build single project # OPENMLDB_SOURCE=true bash steps/centos6_build.sh -# SQL_JAVASDK_ENABLE=ON SQL_PYSDK_ENABLE=ON NRPOC=8 bash steps/centos6_build.sh +# SQL_JAVASDK_ENABLE=ON SQL_PYSDK_ENABLE=ON NPROC=8 bash steps/centos6_build.sh # NPROC will build openmldb in parallel, thirdparty should use THIRD_PARTY_CMAKE_FLAGS ``` +本地2.20GHz CPU,SSD硬盘,32线程编译三方库与OpenMLDB主体,耗时参考: +`THIRD_PARTY_CMAKE_FLAGS=-DMAKEOPTS=-j32 SQL_JAVASDK_ENABLE=ON SQL_PYSDK_ENABLE=ON NPROC=32 bash steps/centos6_build.sh` +- thirdparty(不包括下载src时间)~40m:zetasql打patch 13m,所有thirdparty编译30m +- OpenMLDB 本体,包括python和java native,~12min + #### 云编译 -Fork OpenMLDB仓库后,可以使用在`Actions`中触发workflow `Other OS Build`,编译产出在`Actions`的`Artifacts`中。workflow 配置 `os name`为`centos6`, -如果不需要Java或Python SDK,可配置`java sdk enable`或`python sdk enable`为`OFF`,节约编译时间。 +Fork OpenMLDB仓库后,可以使用在`Actions`中触发workflow `Other OS Build`,编译产出在`Actions`的`Artifacts`中。workflow 配置方式: +- 不要更换`Use workflow from`为某个tag,可以是其他分支。 +- 选择`os name`为`centos6`。 +- 如果不是编译main分支,在`The branch, tag or SHA to checkout, otherwise use the branch`中填写想要的分支名、Tag(e.g. v0.8.2)或SHA。 +- 编译产出在触发后的runs界面中,参考[成功产出的runs链接](https://github.com/4paradigm/OpenMLDB/actions/runs/6044951902)。 + - 一定会产出openmldb binary文件。 + - 如果不需要Java或Python SDK,可配置`java sdk enable`或`python sdk enable`为`OFF`,节约编译时间。 此编译流程需要从源码编译thirdparty,且资源较少,无法开启较高的并发编译。因此编译时间较长,大约需要3h5m(2h thirdparty+1h OpenMLDB)。workflow会缓存thirdparty的编译产出,因此第二次编译会快很多(1h15m OpenMLDB)。 diff --git a/steps/centos6_build.sh b/steps/centos6_build.sh index a5614b10693..b5cee80838f 100644 --- a/steps/centos6_build.sh +++ b/steps/centos6_build.sh @@ -19,6 +19,7 @@ set +x # self build or workflow IN_WORKFLOW=${IN_WORKFLOW:-"false"} +USE_DEPS_CACHE=${USE_DEPS_CACHE:-"false"} # if download from openmldb.ai OPENMLDB_SOURCE=${OPENMLDB_SOURCE:-"false"} @@ -36,6 +37,13 @@ function tool_install() { chmod +x bazel } +if [ "$USE_DEPS_CACHE" == "true" ]; then + echo "use deps cache, exit" + exit 0 +else + echo "not use deps cache, install tools and build deps" +fi + if [ "$IN_WORKFLOW" == "true" ]; then echo "in workflow" else @@ -56,13 +64,12 @@ echo "add patch in fetch cmake" sed -i'' '34s/WITH_TOOLS=OFF$/WITH_TOOLS=OFF -DWITH_CORE_TOOLS=OFF/' third-party/cmake/FetchRocksDB.cmake # if BUILD_BUNDLED=OFF will download pre-built thirdparty, not good -# so we use cmake to build zetasql only -# it's hard to avoid add zetasql patch twice, so we check the dir to avoid -if [ -d ".deps/build/src/zetasql" ]; then - echo "zetasql already exists, skip add patch, if you want, rm .deps/build/src/zetasql* -rf" +# so we use cmake to build zetasql only and add patch to it +# it's hard to avoid add zetasql patch twice, so we check the stamp to avoid +if [ -e ".deps/build/src/zetasql-stamp/zetasql-build" ]; then + echo "zetasql already exists, skip add patch, if you want, rm .deps/build/src/zetasql-stamp/zetasql-build or whole .deps/build/src/zetasql*" else echo "modify in .deps needs a make first, download&build zetasql first(build will fail)" - # sed -i'' '31s/${BUILD_BUNDLED}/ON/' third-party/CMakeLists.txt cmake -S third-party -B "$(pwd)"/.deps -DSRC_INSTALL_DIR="$(pwd)"/thirdsrc -DDEPS_INSTALL_DIR="$(pwd)"/.deps/usr -DBUILD_BUNDLED=ON cmake --build "$(pwd)"/.deps --target zetasql echo "add patch in .deps zetasql" From 1386632befd9a49191965df9dbc2cc5d649ac852 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 11 Oct 2023 16:12:50 +0800 Subject: [PATCH 059/111] feat: check table status when CLI login (#3506) * feat: check table status when CLI login * fix --- src/cmd/sql_cmd.h | 49 +++++++++++++++++++++++++++++++++-- src/sdk/sql_cluster_router.cc | 2 +- 2 files changed, 48 insertions(+), 3 deletions(-) diff --git a/src/cmd/sql_cmd.h b/src/cmd/sql_cmd.h index 5cf1b99cd0c..2d941c65a35 100644 --- a/src/cmd/sql_cmd.h +++ b/src/cmd/sql_cmd.h @@ -141,14 +141,59 @@ std::string ExecFetch(const std::string& sql) { return ss.str(); } -void HandleSQL(const std::string& sql) { - std::cout << ExecFetch(sql); +void HandleSQL(const std::string& sql) { std::cout << ExecFetch(sql); } + +std::string SafeGetString(std::shared_ptr rs, int idx) { + std::string tmp; + if (!rs->GetString(idx, &tmp)) { + LOG(WARNING) << "fail to get string in col " << idx; + return ""; + } + return tmp; +} + +bool CheckAllTableStatus() { + hybridse::sdk::Status status; + auto rs = sr->ExecuteSQL("show table status like '%'", &status); + bool is_ok = true; + if (status.IsOK()) { + // ref GetTableStatusSchema, just use idx to get column + while (rs->Next()) { + auto table = SafeGetString(rs, 1); + auto db = SafeGetString(rs, 2); + auto pu = SafeGetString(rs, 8); + auto warnings = SafeGetString(rs, 13); + std::string msg = absl::StrCat("table ", db, ".", table, " is broken, `show table status` to check detail"); + bool is_broken = false; + if (pu != "0") { + is_broken = true; + msg.append(", unalive partition: ").append(pu); + } + if (!warnings.empty()) { + is_broken = true; + msg.append(", warning preview: ").append(warnings.substr(0, 100)); + } + if (is_broken) { + is_ok = false; + std::cout << "ERROR: " << msg << std::endl; + } + } + } else { + std::cout << "ERROR: fail to get all table status, " << status.ToString() << std::endl; + is_ok = false; + } + return is_ok; } // cluster mode if zk_cluster is not empty, otherwise standalone mode void Shell() { DCHECK(cs); DCHECK(sr); + // before all, check all table status + if (!CheckAllTableStatus()) { + std::cout << "HINT: Use `openmldb_tool inspect` to get full report." << std::endl; + } + // If use FLAGS_cmd, non-interactive. No Logo and make sure router interactive is false if (!FLAGS_cmd.empty()) { std::string db = FLAGS_database; diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 296cd3d5755..eea62b508ff 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -4279,7 +4279,7 @@ static const std::initializer_list GetTableStatusSchema() { // 1. memory: binlog + snapshot // 2. SSD/HDD: binlog + rocksdb data (sst files), wal files and checkpoints are not included // - Partition: partition number -// - partition_unalive: partition number that is unalive +// - Partition_unalive: partition number that is unalive // - Replica: replica number // - Offline_path: data path for offline data // - Offline_format: format for offline data From 34377414f89eb475eef6f2ea3b62c062300c7e0c Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 11 Oct 2023 17:21:59 +0800 Subject: [PATCH 060/111] fix: add deploy bias on demo and docs (#3520) --- demo/byzer-taxi/openmldb_byzer_taxi.bznb | 2 +- .../demo/src/main/java/com/openmldb/demo/App.java | 2 +- demo/jd-recommendation/sql_scripts/deploy.sql | 2 +- demo/predict-taxi-trip-duration/README.md | 4 ++-- demo/predict-taxi-trip-duration/script/taxi.sql | 2 +- .../train_and_serve.ipynb | 2 +- .../train_and_serve.py | 3 ++- docs/en/use_case/lightgbm_demo.md | 2 +- .../deploy_integration/OpenMLDB_Byzer_taxi.md | 2 +- .../openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md | 10 ++++++++-- docs/zh/quickstart/sdk/java_sdk.md | 2 +- docs/zh/use_case/JD_recommendation.md | 2 +- docs/zh/use_case/taxi_tour_duration_prediction.md | 6 +++++- 13 files changed, 26 insertions(+), 15 deletions(-) diff --git a/demo/byzer-taxi/openmldb_byzer_taxi.bznb b/demo/byzer-taxi/openmldb_byzer_taxi.bznb index dc1c925cb0f..b4835f7cc85 100644 --- a/demo/byzer-taxi/openmldb_byzer_taxi.bznb +++ b/demo/byzer-taxi/openmldb_byzer_taxi.bznb @@ -64,7 +64,7 @@ "job_id" : null }, { "id" : "240", - "content" : "run command as FeatureStoreExt.`` where\r\nzkAddress=\"127.0.0.1:2181\"\r\nand zkPath=\"/openmldb\"\r\nand `sql-0`='''\r\nSET @@execute_mode='online';\r\n'''\r\nand `sql-1`='''\r\nDEPLOY d1 SELECT trip_duration, passenger_count,\r\nsum(pickup_latitude) OVER w AS vendor_sum_pl,\r\nmax(pickup_latitude) OVER w AS vendor_max_pl,\r\nmin(pickup_latitude) OVER w AS vendor_min_pl,\r\navg(pickup_latitude) OVER w AS vendor_avg_pl,\r\nsum(pickup_latitude) OVER w2 AS pc_sum_pl,\r\nmax(pickup_latitude) OVER w2 AS pc_max_pl,\r\nmin(pickup_latitude) OVER w2 AS pc_min_pl,\r\navg(pickup_latitude) OVER w2 AS pc_avg_pl ,\r\ncount(vendor_id) OVER w2 AS pc_cnt,\r\ncount(vendor_id) OVER w AS vendor_cnt\r\nFROM t1 \r\nWINDOW w AS (PARTITION BY vendor_id ORDER BY pickup_datetime ROWS_RANGE BETWEEN 1d PRECEDING AND CURRENT ROW),\r\nw2 AS (PARTITION BY passenger_count ORDER BY pickup_datetime ROWS_RANGE BETWEEN 1d PRECEDING AND CURRENT ROW);\r\n'''\r\nand db=\"db1\"\r\nand action=\"ddl\";", + "content" : "run command as FeatureStoreExt.`` where\r\nzkAddress=\"127.0.0.1:2181\"\r\nand zkPath=\"/openmldb\"\r\nand `sql-0`='''\r\nSET @@execute_mode='online';\r\n'''\r\nand `sql-1`='''\r\nDEPLOY d1 OPTIONS(RANGE_BIAS="inf", ROWS_BIAS="inf") SELECT trip_duration, passenger_count,\r\nsum(pickup_latitude) OVER w AS vendor_sum_pl,\r\nmax(pickup_latitude) OVER w AS vendor_max_pl,\r\nmin(pickup_latitude) OVER w AS vendor_min_pl,\r\navg(pickup_latitude) OVER w AS vendor_avg_pl,\r\nsum(pickup_latitude) OVER w2 AS pc_sum_pl,\r\nmax(pickup_latitude) OVER w2 AS pc_max_pl,\r\nmin(pickup_latitude) OVER w2 AS pc_min_pl,\r\navg(pickup_latitude) OVER w2 AS pc_avg_pl ,\r\ncount(vendor_id) OVER w2 AS pc_cnt,\r\ncount(vendor_id) OVER w AS vendor_cnt\r\nFROM t1 \r\nWINDOW w AS (PARTITION BY vendor_id ORDER BY pickup_datetime ROWS_RANGE BETWEEN 1d PRECEDING AND CURRENT ROW),\r\nw2 AS (PARTITION BY passenger_count ORDER BY pickup_datetime ROWS_RANGE BETWEEN 1d PRECEDING AND CURRENT ROW);\r\n'''\r\nand db=\"db1\"\r\nand action=\"ddl\";", "job_id" : null }, { "id" : "241", diff --git a/demo/java_quickstart/demo/src/main/java/com/openmldb/demo/App.java b/demo/java_quickstart/demo/src/main/java/com/openmldb/demo/App.java index 2923832d3b8..cbe363f4359 100644 --- a/demo/java_quickstart/demo/src/main/java/com/openmldb/demo/App.java +++ b/demo/java_quickstart/demo/src/main/java/com/openmldb/demo/App.java @@ -146,7 +146,7 @@ private void createDeployment() { "(PARTITION BY %s.c1 ORDER BY %s.c7 ROWS_RANGE BETWEEN 2d PRECEDING AND CURRENT ROW);", table, table, table); // 上线一个Deployment - String deploySql = String.format("DEPLOY %s %s", deploymentName, selectSql); + String deploySql = String.format("DEPLOY %s OPTIONS(RANGE_BIAS='inf', ROWS_BIAS='inf') %s", deploymentName, selectSql); // set return null rs, don't check the returned value, it's false state.execute(deploySql); } catch (Exception e) { diff --git a/demo/jd-recommendation/sql_scripts/deploy.sql b/demo/jd-recommendation/sql_scripts/deploy.sql index 7cb2121e869..e37408b6396 100644 --- a/demo/jd-recommendation/sql_scripts/deploy.sql +++ b/demo/jd-recommendation/sql_scripts/deploy.sql @@ -1,6 +1,6 @@ USE JD_db; SET @@execute_mode='online'; -DEPLOY demo select * from +DEPLOY demo OPTIONS(RANGE_BIAS='inf', ROWS_BIAS='inf') select * from ( select `reqId` as reqId_1, diff --git a/demo/predict-taxi-trip-duration/README.md b/demo/predict-taxi-trip-duration/README.md index bd44778c2a3..a35f2eb9363 100644 --- a/demo/predict-taxi-trip-duration/README.md +++ b/demo/predict-taxi-trip-duration/README.md @@ -85,7 +85,7 @@ python3 train.py /tmp/feature_data /tmp/model.txt # The below commands are executed in the CLI > USE demo_db; > SET @@execute_mode='online'; -> DEPLOY demo SELECT trip_duration, passenger_count, +> DEPLOY demo OPTIONS(RANGE_BIAS="inf", ROWS_BIAS="inf") SELECT trip_duration, passenger_count, sum(pickup_latitude) OVER w AS vendor_sum_pl, max(pickup_latitude) OVER w AS vendor_max_pl, min(pickup_latitude) OVER w AS vendor_min_pl, @@ -193,7 +193,7 @@ python3 train.py /tmp/feature.csv /tmp/model.txt ```sql # The below commands are executed in the CLI > USE demo_db; -> DEPLOY demo SELECT trip_duration, passenger_count, +> DEPLOY demo OPTIONS(RANGE_BIAS="inf", ROWS_BIAS="inf") SELECT trip_duration, passenger_count, sum(pickup_latitude) OVER w AS vendor_sum_pl, max(pickup_latitude) OVER w AS vendor_max_pl, min(pickup_latitude) OVER w AS vendor_min_pl, diff --git a/demo/predict-taxi-trip-duration/script/taxi.sql b/demo/predict-taxi-trip-duration/script/taxi.sql index bbdd219b2e5..8ade33df870 100644 --- a/demo/predict-taxi-trip-duration/script/taxi.sql +++ b/demo/predict-taxi-trip-duration/script/taxi.sql @@ -22,7 +22,7 @@ w2 AS (PARTITION BY passenger_count ORDER BY pickup_datetime ROWS_RANGE BETWEEN OPTIONS(mode='overwrite'); SET @@execute_mode='online'; -DEPLOY demo SELECT trip_duration, passenger_count, +DEPLOY demo OPTIONS(RANGE_BIAS="inf", ROWS_BIAS="inf") SELECT trip_duration, passenger_count, sum(pickup_latitude) OVER w AS vendor_sum_pl, max(pickup_latitude) OVER w AS vendor_max_pl, min(pickup_latitude) OVER w AS vendor_min_pl, diff --git a/demo/talkingdata-adtracking-fraud-detection/train_and_serve.ipynb b/demo/talkingdata-adtracking-fraud-detection/train_and_serve.ipynb index 6a7c71ff412..b3b01306588 100644 --- a/demo/talkingdata-adtracking-fraud-detection/train_and_serve.ipynb +++ b/demo/talkingdata-adtracking-fraud-detection/train_and_serve.ipynb @@ -187,7 +187,7 @@ "outputs": [], "source": [ "deploy_name='d1'\n", - "%sql DEPLOY $deploy_name $sql_part;" + "%sql DEPLOY $deploy_name OPTIONS(RANGE_BIAS=\"inf\", ROWS_BIAS=\"inf\") $sql_part;" ] }, { diff --git a/demo/talkingdata-adtracking-fraud-detection/train_and_serve.py b/demo/talkingdata-adtracking-fraud-detection/train_and_serve.py index 9cdd93d2074..a592edfdb0e 100644 --- a/demo/talkingdata-adtracking-fraud-detection/train_and_serve.py +++ b/demo/talkingdata-adtracking-fraud-detection/train_and_serve.py @@ -166,7 +166,8 @@ def nothrow_execute(sql): connection.execute("SET @@execute_mode='online';") connection.execute(f'USE {DB_NAME}') nothrow_execute(f'DROP DEPLOYMENT {DEPLOY_NAME}') -deploy_sql = f"""DEPLOY {DEPLOY_NAME} {sql_part}""" +# to avoid data expired by abs ttl, set inf +deploy_sql = f"""DEPLOY {DEPLOY_NAME} OPTIONS(RANGE_BIAS="inf", ROWS_BIAS="inf") {sql_part}""" print(deploy_sql) connection.execute(deploy_sql) print('Import data to online') diff --git a/docs/en/use_case/lightgbm_demo.md b/docs/en/use_case/lightgbm_demo.md index f4e602373a6..80a3d98ba98 100644 --- a/docs/en/use_case/lightgbm_demo.md +++ b/docs/en/use_case/lightgbm_demo.md @@ -152,7 +152,7 @@ Assuming that the model produced by the features designed in Section 2.3 in the ```sql > USE demo_db; > SET @@execute_mode='online'; -> DEPLOY demo SELECT trip_duration, passenger_count, +> DEPLOY demo OPTIONS(RANGE_BIAS='inf', ROWS_BIAS='inf') SELECT trip_duration, passenger_count, sum(pickup_latitude) OVER w AS vendor_sum_pl, max(pickup_latitude) OVER w AS vendor_max_pl, min(pickup_latitude) OVER w AS vendor_min_pl, diff --git a/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md b/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md index 926c079469d..9250d593341 100644 --- a/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md +++ b/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md @@ -232,7 +232,7 @@ and `sql-0`=''' SET @@execute_mode='online'; ''' and `sql-1`=''' -DEPLOY d1 SELECT trip_duration, passenger_count, +DEPLOY d1 OPTIONS(RANGE_BIAS='inf', ROWS_BIAS='inf') SELECT trip_duration, passenger_count, sum(pickup_latitude) OVER w AS vendor_sum_pl, max(pickup_latitude) OVER w AS vendor_max_pl, min(pickup_latitude) OVER w AS vendor_min_pl, diff --git a/docs/zh/openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md b/docs/zh/openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md index 4f94e228357..41b3e1141e8 100644 --- a/docs/zh/openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md +++ b/docs/zh/openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md @@ -175,9 +175,9 @@ deploy demo options(SYNC="false") SELECT t1.col1, t2.col2, sum(col4) OVER w1 as WINDOW w1 AS (PARTITION BY t1.col2 ORDER BY t1.col3 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); ``` -#### 设置偏移 +#### 设置偏移BIAS -如果你并不希望数据根据deploy的索引淘汰,或者希望晚一点淘汰,可以在deploy时设置偏移,常用于数据时间戳并不实时的情况、测试等情况。如果deploy后的索引ttl为abs 3h,但是数据的时间戳是3h前的(以系统时间为基准),那么这条数据就会被淘汰,无法参与计算。设置一定时间或永久的偏移,则可以让数据更久的停留在在线表中。 +如果你并不希望数据根据deploy的索引淘汰,或者希望晚一点淘汰,可以在deploy时设置偏移BIAS,常用于数据时间戳并不实时的情况、测试等情况。如果deploy后的索引ttl为abs 3h,但是数据的时间戳是3h前的(以系统时间为基准),那么这条数据就会被淘汰,无法参与计算。设置一定时间或永久的偏移,则可以让数据更久的停留在在线表中。 时间偏移,单位可以是`s`、`m`、`h`、`d`,也可以是整数,单位为`ms`,也可以是`inf`,表示永不淘汰;如果是行数偏移,可以是整数,单位是`row`,也可以是`inf`,表示永不淘汰。两种偏移中,0均表示不偏移。 @@ -185,6 +185,12 @@ deploy demo options(SYNC="false") SELECT t1.col1, t2.col2, sum(col4) OVER w1 as 而时间偏移的单位是`min`,我们会在内部将其转换为`min`,并且取上界。比如,新索引ttl是abs 2min,加上偏移20s,结果是`2min + ub(20s) = 3min`,然后和旧索引1min取上界,最终索引ttl是`max(1min, 3min) = 3min`。 +**Example** +```sql +DEPLOY demo OPTIONS(RANGE_BIAS="inf", ROWS_BIAS="inf") SELECT t1.col1, t2.col2, sum(col4) OVER w1 as w1_col4_sum FROM t1 LAST JOIN t2 ORDER BY t2.col3 ON t1.col2 = t2.col2 + WINDOW w1 AS (PARTITION BY t1.col2 ORDER BY t1.col3 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); +``` + ## 相关SQL [USE DATABASE](../ddl/USE_DATABASE_STATEMENT.md) diff --git a/docs/zh/quickstart/sdk/java_sdk.md b/docs/zh/quickstart/sdk/java_sdk.md index 966d50db785..166b44adb8e 100644 --- a/docs/zh/quickstart/sdk/java_sdk.md +++ b/docs/zh/quickstart/sdk/java_sdk.md @@ -403,7 +403,7 @@ try { "(PARTITION BY %s.c1 ORDER BY %s.c7 ROWS_RANGE BETWEEN 2d PRECEDING AND CURRENT ROW);", table, table, table); // 上线一个Deployment - String deploySql = String.format("DEPLOY %s %s", deploymentName, selectSql); + String deploySql = String.format("DEPLOY %s OPTIONS(RANGE_BIAS='inf', ROWS_BIAS='inf') %s", deploymentName, selectSql); // set return null rs, don't check the returned value, it's false state.execute(deploySql); } catch (Exception e) { diff --git a/docs/zh/use_case/JD_recommendation.md b/docs/zh/use_case/JD_recommendation.md index d4035be912a..cb4ce603059 100644 --- a/docs/zh/use_case/JD_recommendation.md +++ b/docs/zh/use_case/JD_recommendation.md @@ -393,7 +393,7 @@ bash train_deepfm.sh $demodir/feature_preprocess/out ```sql -- OpenMLDB CLI USE JD_db; - DEPLOY demo ; + DEPLOY demo OPTIONS(RANGE_BIAS='inf', ROWS_BIAS='inf') ; ``` 也可以在 Docker 容器内直接运行部署脚本: diff --git a/docs/zh/use_case/taxi_tour_duration_prediction.md b/docs/zh/use_case/taxi_tour_duration_prediction.md index faaff3bf922..dfb84de28da 100644 --- a/docs/zh/use_case/taxi_tour_duration_prediction.md +++ b/docs/zh/use_case/taxi_tour_duration_prediction.md @@ -151,7 +151,7 @@ w2 AS (PARTITION BY passenger_count ORDER BY pickup_datetime ROWS_RANGE BETWEEN --OpenMLDB CLI USE demo_db; SET @@execute_mode='online'; - DEPLOY demo SELECT trip_duration, passenger_count, + DEPLOY demo OPTIONS(RANGE_BIAS='inf', ROWS_BIAS='inf') SELECT trip_duration, passenger_count, sum(pickup_latitude) OVER w AS vendor_sum_pl, max(pickup_latitude) OVER w AS vendor_max_pl, min(pickup_latitude) OVER w AS vendor_min_pl, @@ -167,6 +167,10 @@ w2 AS (PARTITION BY passenger_count ORDER BY pickup_datetime ROWS_RANGE BETWEEN w2 AS (PARTITION BY passenger_count ORDER BY pickup_datetime ROWS_RANGE BETWEEN 1d PRECEDING AND CURRENT ROW); ``` +```{note} +此处DEPLOY包含BIAS OPTIONS,是因为导入在线存储的数据文件不会更新,对于当前时间来讲,可能会超过DEPLOY后的表索引的时间TTL,导致表淘汰掉这些数据。时间淘汰,只看每个索引的ts列和ttl,只要数据中该列的值<(当前时间-abs_ttl),在该索引上就会被淘汰,与其他因素无关,各个索引也互相不影响。如果你的数据不是实时产生的新timestamp,也需要考虑带上BIAS OPTIONS。 +``` + ### 步骤 7:导入在线数据 首先,请切换到**在线**执行模式。接着在在线模式下,导入样例数据 `/work/taxi-trip/data/taxi_tour_table_train_simple.csv` 作为在线数据,用于在线特征计算。 From 72a49d8b4d872016c54f5d837d3ad1a991aaee32 Mon Sep 17 00:00:00 2001 From: "github-actions[bot]" <41898282+github-actions[bot]@users.noreply.github.com> Date: Thu, 12 Oct 2023 10:04:24 +0800 Subject: [PATCH 061/111] docs(udf): upgrade udf list (#3541) Co-authored-by: aceforeverd --- .../reference/sql/functions_and_operators/Files/udfs_8h.md | 7 ++++++- .../openmldb_sql/functions_and_operators/Files/udfs_8h.md | 7 ++++++- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md b/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md index ac96c6bfc3f..d1696b6c764 100644 --- a/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md +++ b/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md @@ -1178,7 +1178,12 @@ Supported date string style: * yyyy-mm-dd * yyyymmdd -* yyyy-mm-dd hh:mm:ss +* yyyy-mm-dd HH:MM:SS +* yyyy-mm-ddTHH:MM:SS.fff+HH:MM (RFC3399 format) + +Dates from string are transformed into the same time zone (which is currently always UTC+8) before differentiation, dates from date type by default is at UTC+8, you may see a +1/-1 difference if the two date string have different time zones. + +Hint: since openmldb date type limits range from year 1900, to datadiff from/to a date before 1900, pass it as string. Example: diff --git a/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md b/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md index ac96c6bfc3f..d1696b6c764 100644 --- a/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md +++ b/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md @@ -1178,7 +1178,12 @@ Supported date string style: * yyyy-mm-dd * yyyymmdd -* yyyy-mm-dd hh:mm:ss +* yyyy-mm-dd HH:MM:SS +* yyyy-mm-ddTHH:MM:SS.fff+HH:MM (RFC3399 format) + +Dates from string are transformed into the same time zone (which is currently always UTC+8) before differentiation, dates from date type by default is at UTC+8, you may see a +1/-1 difference if the two date string have different time zones. + +Hint: since openmldb date type limits range from year 1900, to datadiff from/to a date before 1900, pass it as string. Example: From 15a7d46dd5704421c037d5590d3bee96683df93f Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Thu, 12 Oct 2023 13:42:33 +0800 Subject: [PATCH 062/111] docs: change_for_airflow_provider_demo_of_integration_folder (#3467) --- .../airflow_provider_demo.md | 145 ++++++++++++++++++ .../images/add_connection.png | Bin 0 -> 32687 bytes .../deploy_integration/images/airflow_dag.png | Bin 0 -> 303427 bytes .../images/airflow_login.png | Bin 0 -> 42118 bytes .../images/airflow_test_result.png | Bin 0 -> 25328 bytes .../deploy_integration/images/connection.png | Bin 0 -> 157110 bytes .../images/connection_display.png | Bin 0 -> 21200 bytes .../images/connection_settings.png | Bin 0 -> 188000 bytes .../deploy_integration/images/dag_code.png | Bin 0 -> 51039 bytes .../deploy_integration/images/dag_home.png | Bin 0 -> 64185 bytes .../deploy_integration/images/dag_run.png | Bin 0 -> 789458 bytes .../airflow_provider_demo.md | 24 +-- 12 files changed, 157 insertions(+), 12 deletions(-) create mode 100644 docs/en/integration/deploy_integration/airflow_provider_demo.md create mode 100644 docs/en/integration/deploy_integration/images/add_connection.png create mode 100644 docs/en/integration/deploy_integration/images/airflow_dag.png create mode 100644 docs/en/integration/deploy_integration/images/airflow_login.png create mode 100644 docs/en/integration/deploy_integration/images/airflow_test_result.png create mode 100644 docs/en/integration/deploy_integration/images/connection.png create mode 100644 docs/en/integration/deploy_integration/images/connection_display.png create mode 100644 docs/en/integration/deploy_integration/images/connection_settings.png create mode 100644 docs/en/integration/deploy_integration/images/dag_code.png create mode 100644 docs/en/integration/deploy_integration/images/dag_home.png create mode 100644 docs/en/integration/deploy_integration/images/dag_run.png diff --git a/docs/en/integration/deploy_integration/airflow_provider_demo.md b/docs/en/integration/deploy_integration/airflow_provider_demo.md new file mode 100644 index 00000000000..3f741cf4c61 --- /dev/null +++ b/docs/en/integration/deploy_integration/airflow_provider_demo.md @@ -0,0 +1,145 @@ +# Airflow +We provide [Airflow OpenMLDB Provider](https://github.com/4paradigm/OpenMLDB/tree/main/extensions/airflow-provider-openmldb), which facilitates the integration of OpenMLDB with Airflow DAG. + +This specific case will undergo training and execution with Airflow's [TalkingData](https://chat.openai.com/talkingdata_demo). + +## TalkingData DAG + +To implement this workflow in Airflow, a DAG (Directed Acyclic Graph) file needs to be written. Here we use an example DAG file in [example_openmldb_complex.py](https://github.com/4paradigm/OpenMLDB/blob/main/extensions/airflow-provider-openmldb/openmldb_provider/example_dags/example_openmldb_complex.py). + +![airflow dag](images/airflow_dag.png) + +The diagram above illustrates the work process in DAG. It begins by creating a table, followed by offline data loading, feature extraction, and model training. If the model trained performs well (AUC >= 99.0), the workflow proceeds to execute deploy SQL and model serving online. Otherwise, a failure report is generated. + +In the following demonstration, you can directly import this DAG and run in Airflow. + + +## Demonstration + +We import the above DAG to perform feature computation and deployment for the TalkingData Demo, then perform real-time inference using the predict server of TalkingData Demo. + +### Preparation + +#### Download DAG + +Along with the DAG files, training scripts are also required. For convenience, we provide the [code package](https://openmldb.ai/download/airflow_demo/airflow_demo_files.tar.gz) for direct download. If you prefer to use the latest version, you can obtain it from [github example_dags](https://github.com/4paradigm/OpenMLDB/tree/main/extensions/airflow-provider-openmldb/openmldb_provider/example_dags). + +``` +wget https://openmldb.ai/download/airflow_demo/airflow_demo_files.tar.gz +tar zxf airflow_demo_files.tar.gz +ls airflow_demo_files +``` +#### Start Docker Image + +For smooth function, we recommend starting OpenMLDB using the docker image and installing Airflow within the docker container. + +Since Airflow Web requires an external port for login, the container's port must be exposed. Then map the downloaded file from the previous step to the `/work/airflow/dags` directory. This step is crucial for Airflow to load the DAGs from this folder correctly. + +``` +docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow_demo_files -it 4pdosc/openmldb:0.8.0 bash +``` + +#### Download and Install Airflow and Airflow OpenMLDB Provider +In the docker container, execute: +``` +pip3 install airflow-provider-openmldb +``` +Airflow will be downloaded as a dependency. + +#### Source Data and DAG Preparation +Copy the sample data file, named `/tmp/train_sample.csv`, to the tmp directory. Airflow DAG files and training scripts used in the DAG must also be copied to the Airflow directory. + +``` +cp /work/airflow_demo_files/train_sample.csv /tmp/ +mkdir -p /work/airflow/dags +cp /work/airflow_demo_files/example_openmldb_complex.py /work/airflow_demo_files/xgboost_train_sample.py /work/airflow/dags +``` + +### Step 1: Start OpenMLDB and Airflow +The command provided below will initiate the OpenMLDB cluster, enabling support for predict server and Airflow standalone. +``` +/work/init.sh +python3 /work/airflow_demo_files/predict_server.py --no-init > predict.log 2>&1 & +export AIRFLOW_HOME=/work/airflow +cd $AIRFLOW_HOME +airflow standalone +``` + +Airflow standalone will show username and password as shown below. + +![airflow login](images/airflow_login.png) + +In Airflow Web interface at `http://localhost:8080`, enter username and password. + +```{caution} +`airflow standalone` is a front-end program that exits with Airflow. You can exit Airflow after DAG completion to run [Step 3-Testing](#3-Testing), or place the Airflow process in the background. +``` + +### Step 2: Running DAG + +To check the status of the DAG "example_openmldb_complex" in Airflow Web, click on the DAG and select the `Code` tab, as shown below. + +![dag home](images/dag_home.png) + +In this code, you will notice the usage of `openmldb_conn_id`, as depicted in the following figure. The DAG doesn't directly employ the address of OpenMLDB; instead, it uses a connection, so you need to create a new connection with the same name. + +![dag code](images/dag_code.png) + +#### Create Connection +Click on connections in the Admin tab. +![connection](images/connection.png) + +Add the connection. +![add connection](images/add_connection.png) + +The Airflow OpenMLDB Provider is linked to the OpenMLDB API Server. Therefore, you should provide the address of the OpenMLDB API Server in this configuration, rather than the Zookeeper address. + +![connection settings](images/connection_settings.png) + +The completed connection is shown in the figure below. +![display](images/connection_display.png) + +#### Running DAG +Run the DAG to complete the training of the model, SQL deployment, and model deployment. A successful operation will yield results similar to the figure below. +![dag run](images/dag_run.png) + +### Step 3: Test + +If Airflow is currently running in the foreground within the container, you may exit the process now. The upcoming tests will not be dependent on Airflow. + +#### Online Data Import +The SQL and model deployment have been successfully executed in the Airflow DAG. However, there is currently no data in the online storage, necessitating an online data import. + +``` +curl -X POST http://127.0.0.1:9080/dbs/example_db -d'{"mode":"online", "sql":"load data infile \"file:///tmp/train_sample.csv\" into table example_table options(mode=\"append\");"}' +``` + +This import process is asynchronous, but since the data volume is small, it will be completed quickly. You can monitor the status of the import operations by using the `SHOW JOBS` command. +``` +curl -X POST http://127.0.0.1:9080/dbs/example_db -d'{"mode":"online", "sql":"show jobs"}' +``` + +#### Prediction +Execute the prediction script to make a prediction using the newly deployed SQL and model. +``` +python3 /work/airflow_demo_files/predict.py +``` +The result is as shown. +![result](images/airflow_test_result.png) + + +### Non-Interactive Testing + +Check if DAG has been successfully loaded: +``` +airflow dags list | grep openmldb +``` +Add required connection: +``` +airflow connections add openmldb_conn_id --conn-uri http://127.0.0.1:9080 +airflow connections list --conn-id openmldb_conn_id +``` +DAG test: +``` +airflow dags test example_openmldb_complex 2022-08-25 +``` diff --git a/docs/en/integration/deploy_integration/images/add_connection.png b/docs/en/integration/deploy_integration/images/add_connection.png new file mode 100644 index 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00000000000..143e8b82dbc --- /dev/null +++ b/docs/en/integration/deploy_integration/dolphinscheduler_task_demo.md @@ -0,0 +1,211 @@ +# DolphinScheduler + +## Introduction +In the whole process of machine learning from development to deployment, tasks including data processing, feature development, and model training demand significant time and effort. To streamline the development and deployment of AI models and simplify the overall machine-learning process, we introduce the DolphinScheduler OpenMLDB Task. It seamlessly integrates the capabilities of the feature platform into DolphinScheduler's workflow, effectively bridging feature engineering with scheduling, resulting in a comprehensive end-to-end MLOps workflow. In this article, we present a concise introduction and practical demonstration of the procedures for using the DolphinScheduler OpenMLDB Task. + +```{seealso} +For detailed information on the OpenMLDB Task, please refer to the [DolphinScheduler OpenMLDB Task Official Documentation](https://dolphinscheduler.apache.org/zh-cn/docs/3.1.5/guide/task/openmldb). +``` + +## Scenarios and Functions +### Why Develop DolphinScheduler OpenMLDB Task + +![eco](images/ecosystem.png) + +As an open-source machine learning database providing a comprehensive solution for production-level data and feature development, the key to enhancing OpenMLDB's usability and reducing usage barriers lies in upstream and downstream connectivity. As depicted in the diagram above, the ability to access the data source allows seamless data flow from DataOps into OpenMLDB. Then the generated features by OpenMLDB need to smoothly integrate with ModelOps for training. To alleviate the significant workload resulting from manual integration by developers using OpenMLDB, we have also developed the function for OpenMLDB integration into Deployment and Monitoring. In this article, we introduce the framework for integrating OpenMLDB into the DolphinScheduler workflow. The DolphinScheduler OpenMLDB Task simplifies the usage of OpenMLDB. In the meantime, OpenMLDB tasks are efficiently managed by Workflow, enabling greater automation. + +### What Can DolphinScheduler OpenMLDB Task Do + +OpenMLDB aims to expedite development launch, enabling developers to focus on the essence of their work rather than expending excessive effort on engineering implementation. By writing OpenMLDB Tasks, we can fulfill the offline import, feature extraction, SQL deployment, and online import requirements of OpenMLDB. Furthermore, we can also implement complete training and online processes using OpenMLDB in DolphinScheduler. + +![task func](images/task_func.png) + +For instance, the most straightforward user operation process we envision, as illustrated in the diagram above, involves steps 1-4: offline data import, offline feature extraction, SQL deployment, and online data import. All of these steps can be achieved by utilizing the DolphinScheduler OpenMLDB Task. + +In addition to SQL execution in OpenMLDB, real-time prediction also requires model deployment. Therefore in the following sections, we will demonstrate how to utilize the DolphinScheduler OpenMLDB Task to coordinate a comprehensive machine learning training and online deployment process, based on the TalkingData adtracking fraud detection challenge from Kaggle. Further information about the TalkingData competition can be found at [talkingdata-adtracking-fraud-detection](https://www.kaggle.com/competitions/talkingdata-adtracking-fraud-detection/discussion). + +## Demonstration +### Environment Configuration + +**Run OpenMLDB Docker Image** + +The test can be executed on macOS or Linux, and we recommend running this demo within the provided OpenMLDB docker image. In this setup, both OpenMLDB and DolphinScheduler will be launched inside the container, with the port of DolphinScheduler exposed. +``` +docker run -it -p 12345:12345 4pdosc/openmldb:0.8.0 bash +``` +```{attention} +For proper configuration of DolphinScheduler, the tenant should be set up as a user of the operating system, and this user must have sudo permissions. It is advised to download and initiate DolphinScheduler within the OpenMLDB container. Otherwise, please ensure that the user has sudo permissions. +``` + +As our current docker image does not have sudo installed, and DolphinScheduler requires sudo for running workflows, please install sudo in the container first: +``` +apt update && apt install sudo +``` + +The DolphinScheduler runs the task using sh, but in the docker, sh is `dash` as default. Thus modify it to `bash` with the following command: +``` +dpkg-reconfigure dash +``` +Enter `no`. + +**Data Preparation** + +The workflow loads data from `/tmp/train_Sample.csv ` to OpenMLDB. Thus, first download the source data to this address: +``` +curl -SLo /tmp/train_sample.csv https://openmldb.ai/download/dolphinschduler-task/train_sample.csv +``` + +**Run OpenMLDB Cluster and Predict Server** + +Run the following command in the container to start a OpenMLDB cluster: +``` +/work/init.sh +``` + +We will run a workflow that includes data import, offline training, and model deployment. The deployment of the model is done by sending the model address to the predict server. Let's begin by downloading and running the predict server in the background: +``` +cd /work +curl -SLo predict_server.py https://openmldb.ai/download/dolphinschduler-task/predict_server.py +python3 predict_server.py --no-init > predict.log 2>&1 & +``` +```{tip} +If an error occurred in the 'Online Prediction Test', please check `/work/predict.log`. +``` + +**Download and Run DolphinScheduler** + +Please note that DolphinScheduler supports OpenMLDB Task versions 3.1.3 and above. In this article, we will be using version 3.1.5, which can be downloaded from the [Official Website](https://dolphinscheduler.apache.org/zh-cn/download/3.1.5) or from a mirrored website. + +To start the DolphinScheduler standalone, follow the steps outlined in the [Official Documentation](https://dolphinscheduler.apache.org/zh-cn/docs/3.1.5/guide/installation/standalone) for more information. + +``` +# Official +curl -SLO https://dlcdn.apache.org/dolphinscheduler/3.1.5/apache-dolphinscheduler-3.1.5-bin.tar.gz +# Image curl -SLO http://openmldb.ai/download/dolphinschduler-task/apache-dolphinscheduler-dev-3.1.5-bin.tar.gz +tar -xvzf apache-dolphinscheduler-*-bin.tar.gz +cd apache-dolphinscheduler-*-bin +sed -i s#/opt/soft/python#/usr/bin/python3#g bin/env/dolphinscheduler_env.sh +./bin/dolphinscheduler-daemon.sh start standalone-server +``` + +```{hint} +In the official release version of DolphinScheduler, there is an issue with OpenMLDB Task in versions older than 3.1.3, which cannot be used directly. If you are using an older version, you can contact us to obtain a corresponding version. This problem has been resolved in versions 3.1.3 and later, making them suitable for use with the official release version. + +In other versions of DolphinScheduler, there may be a change in `bin/env/dolphinscheduler_env.sh`. If `PYTHON_HOME` does not exist in `bin/env/dolphinscheduler_env.sh`, additional configuration is required. You can modify it using the command `echo "export PYTHON_HOME=/usr/bin/python3" >>bin/env/dolphinscheduler_env.sh`. +``` + +To access the system UI, open your browser and go to the address http://localhost:12345/dolphinscheduler/ui (the default configuration allows cross-host access, but you need to ensure a smooth IP connection). The default username and password are admin/dolphinscheduler123. + +```{note} +The DolphinScheduler worker server requires the OpenMLDB Python SDK. For the DolphinScheduler standalone worker, you only need to install the OpenMLDB Python SDK locally. We have already installed it in our OpenMLDB docker image. If you are in a different environment, please install the openmldb SDK using the command `pip3 install openmldb`. +``` + +**Download Workflow Configuration** + +Workflow can be manually created, but for the purpose of simplifying the demonstration, we have provided a JSON workflow file directly, which you can download from the following link: [Click to Download](http://openmldb.ai/download/dolphinschduler-task/workflow_openmldb_demo.json). You can upload this file directly to the DolphinScheduler environment and make simple modifications (as shown in the demonstration below) to complete the entire workflow. + +Please note that the download will not be saved within the container but to the browser host you are using. The upload will be done on the web page later. + +### Run Demo + +#### Step 1: Initial Configuration + +To create a tenant in DolphinScheduler web, navigate to the tenant management interface, and fill in the required fields. Make sure to fill in **user with sudo permission**. You can use the default settings for the queue. You can use root in the docker container. + +![create tenant](images/ds_create_tenant.png) + +Bind the tenant to the user again. For simplicity, we directly bind to the admin user. Enter User Management page and click Edit Admin User. + +![bind tenant](images/ds_bind_tenant.png) + +After binding, the user status is similar as shown below. +![bind status](images/ds_bind_status.png) + +#### Step 2: Create Workflow +In DolphinScheduler, you need to create a project first, and then create a workflow within that project. + +To begin, create a test project. As shown in the following figure, click on "Create Project" and enter the project name. + +![create project](images/ds_create_project.png) + +![project](images/ds_project.png) + +Once inside the project page, you can import the downloaded workflow file. In the workflow definition tab, click on "Import Workflow". + +![import workflow](images/ds_import_workflow.png) + +After importing, the workflow table will show as follows. + +![workflow list](images/ds_workflow_list.png) + +Click on the workflow name to view the detailed content of the workflow, as shown in the following figure. + +![workflow detail](images/ds_workflow_detail.png) + +**Note**: A minor modification is required here since the task ID will change after importing the workflow. Specifically, the upstream and downstream IDs in the switch task will not exist and need to be manually modified. + +![switch](images/ds_switch.png) + +As depicted in the above figure, there are non-existent IDs in the settings of the switch task. Please modify the "branch flow" and "pre-check conditions" for successful and failed workflows to match the tasks of the current workflow. + +The correct results are shown in the following figure: + +![right](images/ds_switch_right.png) + +Once the modifications are completed, save the workflow directly. The default tenant in the imported workflow is "default," which is also **executable**. If you want to specify your own tenant, please select the tenant when saving the workflow, as shown in the following figure. + +![set tenant](images/ds_set_tenant.png) + +#### Step 3: Deploy Online Workflow + +After saving the workflow, it needs to be launched before running. Once it goes online, the run button will be activated. As illustrated in the following figure. + +![run](images/ds_run.png) + +After clicking "Run," wait for the workflow to complete. You can view the details of the workflow operation in the Workflow Instance page, as shown in the following figure. +![run status](images/ds_run_status.png) + +To demonstrate the process of a successful product launch, validation was not actually validated but returned a successful validation and flowed into the deploy branch. After running the deploy branch and successfully deploying SQL and subsequent tasks, the predict server receives the latest model. + +```{note} +If the `Failed` appears on the workflow instance, please click on the instance name and go to the detailed page to see which task execution error occurred. Double-click on the task and click on "View Log" in the upper right corner to view detailed error information. + +`load offline data`, `feature extraction`, and `load online` may display successful task execution in the DolphinScheduler, but actual task execution fails in OpenMLDB. This may lead to errors in the `train` task, where there is no source feature data to concatenate (Traceback `pd.concat`). + +When such problems occur, please query the true status of each task in OpenMLDB and run it directly using the command: `echo "show jobs;" | /work/openmldb/bin/openmldb --zk_cluster=127.0.1:2181 --zk_root_path=/openmldb --role=SQL_client`. If the status of a task is `FAILED`, please query the log of that task. The method can be found in [Task Log](../../quickstart/beginninger_mustread.md#offline). +``` + +#### Step 4: Test Online Prediction +The predict server also provides online prediction services, through `curl/predict`. You can construct a real-time request and send it to the predict server. +``` +curl -X POST 127.0.0.1:8881/predict -d '{"ip": 114904, + "app": 11, + "device": 1, + "os": 15, + "channel": 319, + "click_time": 1509960088000, + "is_attributed": 0}' +``` +The return result is as follows: + +![predict](images/ds_predict.png) + +#### Note + +If the workflow is run repeatedly, the `deploy SQL` task may fail because the deployment `demo` already exists. Please delete the deployment in the docker container before running the workflow again: +``` +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --database=demo_db --interactive=false --cmd="drop deployment demo;" +``` + +You can confirm whether the deployment has been deleted by using the following command: +``` +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client --database=demo_db --interactive=false --cmd="show deployment demo;" +``` + +Restart the DolphinScheduler server (Note that restarting this will clear the metadata and require reconfiguring the environment and creating workflows): +``` +./bin/dolphinscheduler-daemon.sh stop standalone-server +./bin/dolphinscheduler-daemon.sh start standalone-server +``` + +If you want to preserve metadata, please refer to [Pseudo Cluster Deployment](https://dolphinscheduler.apache.org/zh-cn/docs/3.1.5/guide/installation/pseudo-cluster) to configure 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z!+Ak5Ii87+G=Yh_8A7kD=AYQ%5X+L>R5~IfpU6R3K)+DBQo<54$6k|fLHmB91Yf%il{ Date: Thu, 12 Oct 2023 13:53:19 +0800 Subject: [PATCH 064/111] docs: update-quickstart-folder (#3535) --- docs/en/quickstart/beginner_must_read.md | 144 +++++++++++++++ .../en/quickstart/{cli_tutorial.md => cli.md} | 0 docs/en/quickstart/function_boundary.md | 165 ++++++++++++++++++ docs/en/quickstart/index.rst | 5 +- docs/zh/quickstart/beginner_must_read.md | 2 +- docs/zh/quickstart/function_boundary.md | 4 +- 6 files changed, 316 insertions(+), 4 deletions(-) create mode 100644 docs/en/quickstart/beginner_must_read.md rename docs/en/quickstart/{cli_tutorial.md => cli.md} (100%) create mode 100644 docs/en/quickstart/function_boundary.md diff --git a/docs/en/quickstart/beginner_must_read.md b/docs/en/quickstart/beginner_must_read.md new file mode 100644 index 00000000000..759d423b32d --- /dev/null +++ b/docs/en/quickstart/beginner_must_read.md @@ -0,0 +1,144 @@ +# Essential Reading for Getting Started + +As OpenMLDB is a distributed system with various modes and extensive client functionality, users may encounter numerous questions and operational challenges, especially when using it for the first time. This article aims to guide beginners on diagnosing and debugging issues and providing effective information when seeking technical assistance. + +## Create OpenMLDB and Connection + +To begin, we recommend that users who are not well-versed in distributed multi-process management use Docker to set up OpenMLDB. This approach offers convenience and expedites the initial learning process. Once you have become acquainted with the various components of OpenMLDB, you can explore distributed deployment options. + +You can create an OpenMLDB instance using Docker by following the instructions in the [Quickstart guide](./openmldb_quickstart.md). Please note that the guide presents two versions: standalone and cluster. Ensure clarity regarding the version you intend to create and avoid mixed usage. + +A successful startup is indicated by your ability to connect to the OpenMLDB server using the CLI (Command Line Interface). In both standalone and cluster setups, you can use `/work/openmldb/bin/openmldb` to connect to OpenMLDB and execute `show components;` to check the running status of OpenMLDB server components. + +If you encounter difficulties connecting via the CLI, first verify whether the processes are running as expected. You can confirm the presence of nameserver and tablet server processes using `ps f | grep bin/openmldb`. In the case of the cluster setup, ensure that the ZooKeeper service is running by using `ps f | grep zoo.cfg`, and confirm the existence of the taskmanager process with `ps f | grep TaskManagerServer`. + +If all service processes are running correctly, but the CLI still cannot connect to the server, double-check the parameters for CLI operation. If issues persist, don't hesitate to contact us and provide the error information from the CLI. + +```{seealso} +If further configuration and server logs from OpenMLDB are required, you can use diagnostic tools to obtain them, as detailed in the [section below](#provide-configuration-and-logs-for-technical-support). +``` + +## Source Data + +### LOAD DATA + +When importing data from a file into OpenMLDB, the typical command used is `LOAD DATA`. For detailed information, please refer to [LOAD DATA INFILE](../openmldb_sql/dml/LOAD_DATA_STATEMENT.md). The data sources and formats that can be employed with `LOAD DATA` are contingent on several factors, including the OpenMLDB version (standalone or cluster), execution mode, and import mode (i.e., the `LOAD DATA` configuration item, `load_mode`). Specifically: + +In cluster version, the default `load_mode` is "cluster", and it can be set to "local". In standalone version, the default `load_mode` is "local," and **"cluster " is not supported**. Consequently, we discuss these scenarios in three distinct contexts: + +| LOAD DATA Type | Support execution mode (import to destination) | Support asynchronous/ synchronous | Support data sources | Support data formats | +| :-------------------------------- | :--------------------------------------------- | :--------------------------------- | :----------------------------------------------------------- | :--------------------------------------------- | +| Cluster version load_mode=cluster | Online, offline | Asynchronous, synchronous | File (with conditional restrictions, please refer to specific documentation) /hdfs/ hive | CSV/ parquet (HIVE source unrestricted format) | +| Cluster version load_mode=local | Online | Synchronous | Client local file | csv | +| Standalone version(only local) | Online | Synchronous | Client local file | csv | + +When the source data for `LOAD DATA` is in CSV format, it's essential to pay special attention to the timestamp column's format. Timestamps can be in "int64" format (referred to as int64 type) or "yyyy-MM-dd'T'HH:mm:ss[.SSS][XXX]" format (referred to as date type). + +| LOAD DATA Type | Support int64 type | Support date type | +| :-------------------------------- | :------------ | :----------- | +| Cluster version load_mode=cluster | **``✓``** | **``✓``** | +| Cluster version load_mode=local | **``✓``** | **``X``** | +| Standalone version(only local) | **``✓``** | **``X``** | + +```{hint} +The CSV file format can be inconvenient in certain situations, and we recommend considering the use of the Parquet format. This approach requires the OpenMLDB cluster version to be in use and necessitates the taskmanager component to be up and running. +``` + +## SQL Restriction + +OpenMLDB does not offer full compatibility with standard SQL, which means that certain SQL queries may not yield the expected results. If you encounter a situation where the SQL execution does not align with your expectations, it's advisable to initially verify whether the SQL adheres to the [Functional Boundary](./function_boundary.md) guidelines. + +## SQL Execution + +All commands within OpenMLDB are SQL-based. If you experience SQL execution failures or other issues (where it's unclear whether the command was executed successfully), consider the following checks: + +1. **SQL Accuracy**: Examine whether there are errors in the SQL syntax. Syntax errors can lead to unsuccessful SQL execution. You can refer to the [SQL Reference](../../openmldb_sql/) to correct any errors. +2. **Execution Status**: Determine if the command has progressed to the execution phase or if it failed to execute. This distinction is crucial for troubleshooting. + +For instance, if you encounter a syntax error prompt, it indicates a problem with the SQL writing, and you should consult the [SQL Reference](../../openmldb_sql/) for guidance on correcting it. + +``` +127.0.0.1:7527/db> create table t1(c1 int; +Error: Syntax error: Expected ")" or "," but got ";" [at 1:23] +create table t1(c1 int; + ^ +``` + +If the command has entered the execution phase but fails or experiences interaction issues, you should clarify the following details: + +- **OpenMLDB Version**: Is OpenMLDB being used in standalone mode or clustered mode? +- **Execution Mode**: What is the execution mode? You can use the `show variable` command in the CLI to retrieve this information. Note that the execution mode of the standalone version is not meaningful. + +Special attention to usage logic is required when working with the cluster version of OpenMLDB. + +### Cluster Version SQL Execution + +#### Offline + +For cluster offline commands, when operating in the default asynchronous mode, sending the command will yield a job ID as a return value. You can utilize `show job ` to inquire about the execution status of the job. + +If the offline job is an asynchronous SELECT query (without saving results), the results will not be displayed on the client (synchronous SELECT queries do display results). Instead, you can retrieve the results through `show joblog `, which comprises two sections: `stdout` and `stderr`. `stdout` contains the query results, while `stderr` contains the job's runtime log. If you discover that the job has failed or its status doesn't align with your expectations, it's essential to carefully review the job run log. + +```{note} +The location of these logs is determined by the `job.log.path` configuration in taskmanager.properties. If you have altered this configuration, you will need to search in the specified destination for the logs. By default, the stdout log can be found at `/work/openmldb/taskmanager/bin/logs/job_x.log`, while the job execution log is situated at `/work/openmldb/taskmanager/bin/logs/job_x_error.log` (note the "error" suffix). + +If the task manager operates in YARN mode rather than local mode, the information in job_x_error.log may be more limited, and detailed error information about the job might not be available. In such instances, you will need to employ the YARN app ID recorded in job_x_error.log to access the actual error details within the YARN system. +``` + +#### Online + +In the online mode of the cluster version, we typically recommend using the `DEPLOY` command to create a deployment, and access to APIServer through HTTP for real-time feature computations. Performing a SELECT query directly online, with CLI or other clients is referred to as "online preview." It's essential to be aware that online preview comes with several limitations, which are outlined in detail in the [Functional Boundary - Cluster Version Online Preview Mode](../function_boundary.md#cluster-version-online-preview-mode) document. Please avoid executing unsupported SQL queries in this context. + +### Provide Replication Scripts + +If you find yourself unable to resolve an issue through self-diagnosis, please provide us with a replication script. A comprehensive replication script should include the following components: + +``` +create database db; +use db; +-- create your table +create table xx (); + +-- offline or online +set @@execute_mode=''; + +-- load data or online insert +-- load data infile '' into table xx; +-- insert into xx values (),(); + +-- query / deploy ... + +``` + +If your question necessitates data for replication, please include the data. For offline data that doesn't support inserting offline, kindly provide a CSV or Parquet data file. If it pertains to online data, you can either provide a data file or directly insert it within the script. + +These data scripts should be capable of executing SQL commands in bulk by using redirection symbols. + +``` +/work/openmldb/bin/openmldb --host 127.0.0.1 --port 6527 < reproduce.sql +/work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client < reproduce.sql +``` + +Ensure that the replication script is functional locally to reproduce the issue, and then document the issue or forward it to us for further assistance. + +```{caution} +Please be aware that offline jobs default to asynchronous mode. If you intend to import and query offline, remember to set it to synchronous mode. For additional information, consult [Offline Command Configuration Details](../openmldb_sql/ddl/SET_STATEMENT.md#offline-command-configuration-details). Without this adjustment, querying before the import is completed will not yield meaningful results. +``` + +## Provide Configuration and Logs for Technical Support + +If your SQL execution issue cannot be replicated through replication scripts or if it's not related to SQL execution but rather a cluster management problem, we kindly request that you provide us with configuration details and logs from both the client and server for further investigation. + +Whether you are using Docker or a local cluster setup (where all processes are on the same server), you can swiftly gather configuration, log files, and other information using diagnostic tools. + +You can initiate the OpenMLDB server using either the `init.sh`/`start-all.sh` command for clustered versions or the `init.sh standalone`/`start-standalone.sh` command for standalone versions. After starting the server, you can employ the following commands, which correspond to clustered and standalone versions, respectively. + +``` +openmldb_tool --env=onebox --dist_conf=cluster_dist.yml +openmldb_tool --env=onebox --dist_conf=standalone_dist.yml +``` +`cluster_dist.yml` and `stadnalone_dist.yml` can be found in the `/work/` directory within the Docker container. Alternatively, you can copy the yml file from the [GitHub directory](https://github.com/4paradigm/OpenMLDB/tree/main/demo) for your use. + +If you are working with a distributed cluster, it's essential to have SSH password-free configuration in place for smooth usage of the diagnostic tools. Please refer to the [Diagnostic Tool documentation](../maintain/diagnose.md) for guidance on setting this up. + +If your environment doesn't allow for SSH password-free configuration, please manually collect the configuration details and logs as needed. diff --git a/docs/en/quickstart/cli_tutorial.md b/docs/en/quickstart/cli.md similarity index 100% rename from docs/en/quickstart/cli_tutorial.md rename to docs/en/quickstart/cli.md diff --git a/docs/en/quickstart/function_boundary.md b/docs/en/quickstart/function_boundary.md new file mode 100644 index 00000000000..9c2c0b7ae14 --- /dev/null +++ b/docs/en/quickstart/function_boundary.md @@ -0,0 +1,165 @@ +# Functional Boundary + +This article will introduce the functional boundary of OpenMLDB SQL. + +```{note} +If you have any questions about SQL statements, please refer to OpenMLDB SQL or directly use the search function to search. +``` + +## System Configuration - TaskManager + +You can configure the TaskManager to define various settings, including the offline storage address (`offline.data.prefix`) and the Spark mode required for offline job computation (`spark.master`), among others. + +- `offline.data.prefix`: This can be configured as either a file path or an HDFS path. It is recommended to use an HDFS path for production environments, while a local file path can be configured for testing environments (specifically for onebox, such as running within a Docker container). Note that using a file path as offline storage will not support distributed deployment with multiple Task Managers (data won't be transferred between Task Managers). If you plan to deploy Task Managers on multiple hosts, please use storage media like HDFS that can be accessed simultaneously by multiple hosts. If you intend to test the collaboration of multiple Task Managers, you can deploy multiple Task Managers on a single host and use a file path as offline storage. +- `spark.master=local[*]`: The default Spark configuration is in `local[*]` mode, which automatically binds CPU cores. If offline tasks are found to be slow, it is recommended to use the Yarn mode. After changing the configuration, you need to restart the Task Manager for the changes to take effect. For more configurations, please refer to [master-urls](https://spark.apache.org/docs/3.1.2/submitting-applications.html#master-urls). + +### spark.default.conf + +More optional configurations can be written in the `spark.default.conf` parameter in the format of `k1=v1;k2=v2`. For example: + +```Plain +spark.default.conf=spark.port.maxRetries=32;foo=bar +``` + +`spark.port.maxRetries`: The default is set to 16, and you can refer to [Spark Configuration](https://spark.apache.org/docs/3.1.2/configuration.html). Each offline job is associated with a Spark UI, corresponding to a port. Each port starts from the default initial port and increments by one for retry attempts. If the number of concurrently running jobs exceeds `spark.port.maxRetries`, the number of retries will also exceed `spark.port.maxRetries`, causing job startup failures. If you need to support a larger job concurrency, configure a higher value for `spark.port.maxRetries` and restart the Task Manager to apply the changes. + +## DDL Boundary - DEPLOY Statement + +You can deploy an online SQL solution using the `DEPLOY ` command. This operation automatically parses the SQL statement and helps create indexes (you can view index details using `DESC `). For more information, please refer to the [DEPLOY STATEMENT](../openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md) documentation. + +The success of the deployment operation is dependent on the presence of online data in the table. + +### Long Window SQL + +Long Window SQL: This refers to the `DEPLOY` statement with the `OPTIONS(long_windows=...)` configuration item. For syntax details, please refer to [Long Window](../openmldb_sql/deployment_manage/DEPLOY_STATEMENT.md#long-window-optimazation). Deployment conditions for long-window SQL are relatively strict, and it's essential to ensure that the tables used in the SQL statements do not contain online data. Otherwise, even if deploying SQL that matches the previous one, the operation will still fail. + +### Normal SQL + +- If the relevant index already exists before deployment, the `DEPLOY` operation will not create the index. The `DEPLOY` operation will succeed regardless of whether there is online data in the table. +- If a new index needs to be created during deployment, and there is already online data in the table, the `DEPLOY` operation will fail. + +There are two solutions: + +1. Strictly perform `DEPLOY` before importing online data, and avoid executing `DEPLOY` after online data is present in the table. +2. The `CREATE INDEX` statement can automatically import existing online data (data from existing indexes) when creating a new index. If it is necessary to execute `DEPLOY` when the table already has online data, you can manually execute a `CREATE INDEX` to create the required index (the new index will already have data), and then execute `DEPLOY` (in this case, `DEPLOY` will not create a new index, and the manually created indexes will be used directly for computation). + +```{note} +How can you determine which indexes to create? + +Currently, only the Java SDK supports this feature, and all the required indexes can be obtained through `SqlClusterExecutor.genDDL`. However, you will need to manually convert them into `CREATE INDE`X statements as `genDD`L provides table creation statements. In the future, it will support ** directly obtaining index creation statements** or **automatically importing data into a new index** with `DEPLOY`. +``` + +## DML Boundary + +### Offline Information + +There are two types of paths in the offline information of a table: `offline_path` and `symbolic_paths`. `offline_path` is the actual storage path for offline data, while `symbolic_paths` are soft link paths for offline data. Both paths can be modified using the `LOAD DATA` command, and `symbolic_paths` can also be modified using the `ALTER` statement. + +The key difference between `offline_path` and `symbolic_paths` is that `offline_path` is the path owned by the OpenMLDB cluster. If a hard copy is implemented, data will be written to this path. On the other hand, `symbolic_paths` are paths outside the OpenMLDB cluster, and soft copies will add a path to this information. When querying offline, data from both paths will be loaded. Both paths use the same format and read options and do not support paths with different configurations. + +Therefore, if `offline_path` already exists offline, the `LOAD DATA` command can only modify `symbolic_paths`. If `symbolic_paths` already exist offline, the `LOAD DATA` command can be used to modify both `offline_path` and `symbolic_paths`. + +The `errorifexists` option will raise an error if there is offline information in the table. It will raise errors if performing hard copy when there's soft links, or performing soft copy when a hard copy exisits. + +### LOAD DATA + +Regardless of whether data is imported online or offline using the `LOAD DATA` command, it is considered an offline job. The format rules for source data are the same for both offline and online scenarios. + +It is recommended to use HDFS files as source data. This approach allows for successful import whether TaskManager is in local mode, Yarn mode, or running on another host. However, if the source data is a local file, the ability to import it smoothly depends on the mode of TaskManager and the host where it is running: + +- In local mode, TaskManager can successfully import source data only if the source data is placed on the same host as the TaskManager process. +- When TaskManager is in Yarn mode (both client and cluster), a file path cannot be used as the source data address because it is not known on which host the container is running. + +### DELETE + +In tables with multiple indexes in the online storage, a `DELETE` operation may not delete corresponding data in all indexes. Consequently, there may be situations where data has been deleted, but the deleted data can still be found. + +For example: + +```SQL +create database db; +use db; +create table t1(c1 int, c2 int,index(key=c1),index(key=c2)); +desc t1; +set @@execute_mode='online'; +insert into t1 values (1,1),(2,2); +delete from t1 where c2=2; +select * from t1; +select * from t1 where c2=2; +``` + +The results are as follows: + +```Plain + --- ------- ------ ------ --------- + Field Type Null Default + --- ------- ------ ------ --------- + 1 c1 Int YES + 2 c2 Int YES + --- ------- ------ ------ --------- + --- -------------------- ------ ---- ------ --------------- + name keys ts ttl ttl_type + --- -------------------- ------ ---- ------ --------------- + 1 INDEX_0_1668504212 c1 - 0min kAbsoluteTime + 2 INDEX_1_1668504212 c2 - 0min kAbsoluteTime + --- -------------------- ------ ---- ------ --------------- + -------------- + storage_mode + -------------- + Memory + -------------- + ---- ---- + c1 c2 + ---- ---- + 1 1 + 2 2 + ---- ---- + +2 rows in set + ---- ---- + c1 c2 + ---- ---- + +0 rows in set +``` + +Explanation: + +Table `t1` has multiple indexes (which may be automatically created during `DEPLOY`). If you run `delete from t1 where c2=2`, it only deletes data in the second index, while the data in the first index remains unaffected. Therefore, if you subsequently run `select * from t1` and it uses the first index, there are two pieces of data that haven't been deleted. `select * from t1 where c2=2` uses the second index, and the result is empty, with data being successfully deleted. + +## DQL Boundary + +The supported query modes (i.e. `SELECT` statements) vary depending on the execution mode: + +| Execution Mode | Query Statement | +| -------------- | ------------------------------------------------------------ | +| Offline Mode | Batch query | +| Online Mode | Batch query (also known as online preview mode, only supports partial SQL) and request query (also known as online request mode) | + +### Online Preview Mode + +In OpenMLDB CLI, executing SQL in online mode puts it in online preview mode. Please note that online preview mode has limited support; you can refer to the [SELECT STATEMENT](../openmldb_sql/dql/SELECT_STATEMENT) documentation for more details. + +Online preview mode is primarily for previewing query results. If you need to run complex SQL queries, it's recommended to use offline mode. To query complete online data, consider using a data export tool such as the `SELECT INTO` command. Keep in mind that if the online table contains a large volume of data, it might trigger data truncation, and executing `SELECT * FROM table` could result in some data not being returned. + +Online data is usually distributed across multiple locations, and when you run `SELECT * FROM table`, it retrieves results from various Tablet Servers without performing global sorting. As a result, the order of data will be different with each execution of `SELECT * FROM table`. + +### Offline Mode and Online Request Mode + +In the [full process](./concepts/modes.md) of feature engineering development and deployment, offline mode and online request mode play prominent roles: + +- Offline Mode Batch Query: Used for offline feature generation. +- Query in Online Request Mode: Employed for real-time feature computation. + +While these two modes share the same SQL statements and produce consistent computation results, due to the use of two different execution engines (offline and online), not all SQL statements that work offline can be deployed online. SQL that can be executed in online request mode is a subset of offline executable SQL. Therefore, it's essential to test whether SQL can be deployed using `DEPLOY` after completing offline SQL development. + +## Offline Command Synchronization Mode + +All offline commands can be executed in synchronous mode using `set @@sync_job=true;`. In this mode, the command will only return after completion, whereas in asynchronous mode, job info is immediately returned, requires usage of `SHOW JOB ` to check the execution status of the job. In synchronous mode, the return values differ depending on the command. + +- DML commands like `LOAD DATA` and DQL commands like `SELECT INTO` return the ResultSet of Job Info. These results are identical to those in asynchronous mode, with the only difference being the return time. +- Normal `SELECT` queries in DQL return Job Info in asynchronous mode and query results in synchronous mode. However, support for this feature is currently incomplete, as explained in [Offline Sync Mode-select](../openmldb_sql/dql/SELECT_STATEMENT.md#offline-sync-mode-select). The results are in CSV format, but data integrity is not guaranteed, so it's not recommended to use as accurate query results. + - In the CLI interactive mode, the results are printed directly. + - In the SDK, ResultSet is returned, the query result as a string. Consequently, it's not recommended to use synchronous mode queries in the SDK and process their results. + +Synchronous mode comes with timeout considerations, which are detailed in [Configuration](../openmldb_sql/ddl/SET_STATEMENT.md#offline-command-configuaration-details). diff --git a/docs/en/quickstart/index.rst b/docs/en/quickstart/index.rst index aefceb8f206..aac5878eede 100644 --- a/docs/en/quickstart/index.rst +++ b/docs/en/quickstart/index.rst @@ -7,5 +7,8 @@ Quickstart openmldb_quickstart concepts/index - cli_tutorial + cli sdk/index + beginner_must_read + function_boundary + diff --git a/docs/zh/quickstart/beginner_must_read.md b/docs/zh/quickstart/beginner_must_read.md index 37f1b57ae8e..f5ba729613f 100644 --- a/docs/zh/quickstart/beginner_must_read.md +++ b/docs/zh/quickstart/beginner_must_read.md @@ -90,7 +90,7 @@ create table t1(c1 int; ``` create database db; use db; --- create youer table +-- create your table create table xx (); -- offline or online diff --git a/docs/zh/quickstart/function_boundary.md b/docs/zh/quickstart/function_boundary.md index 801d5d1b111..5d656f8eb75 100644 --- a/docs/zh/quickstart/function_boundary.md +++ b/docs/zh/quickstart/function_boundary.md @@ -147,7 +147,7 @@ OpenMLDB CLI 中在线模式下执行 SQL,均为在线预览模式。在线预 ### 离线模式与在线请求模式 -在[特征工程开发上线全流程](../tutorial/concepts/modes.md#11-特征工程开发上线全流程)中,主要使用离线模式和在线请求模式。 +在[特征工程开发上线全流程](./concepts/modes.md)中,主要使用离线模式和在线请求模式。 - 离线模式的批查询:离线特征生成 - 在线请求模式的请求查询:实时特征计算 @@ -164,4 +164,4 @@ OpenMLDB CLI 中在线模式下执行 SQL,均为在线预览模式。在线预 - CLI是交互模式,所以将结果直接打印。 - SDK中,返回的是一行一列的ResultSet,将整个查询结果作为一个字符串返回。所以,不建议SDK使用同步模式查询,并处理其结果。 -同步模式涉及超时问题,详情见[调整配置](../../openmldb_sql/ddl/SET_STATEMENT.md#离线命令配置详情)。 +同步模式涉及超时问题,详情见[调整配置](../openmldb_sql/ddl/SET_STATEMENT.md#离线命令配置详情)。 From 7aed9c724b2e41f186f5fc7811b11f2950e35b3e Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Thu, 12 Oct 2023 14:18:19 +0800 Subject: [PATCH 065/111] docs: change for index file of integration folder (#3485) --- docs/en/integration/deploy_integration/index.rst | 14 ++++++++++++++ docs/en/integration/develop/index.rst | 8 ++++++++ docs/en/integration/index.rst | 13 +++++++++++++ docs/en/integration/online_datasources/index.rst | 13 +++++++++++++ 4 files changed, 48 insertions(+) create mode 100644 docs/en/integration/deploy_integration/index.rst create mode 100644 docs/en/integration/develop/index.rst create mode 100644 docs/en/integration/index.rst create mode 100644 docs/en/integration/online_datasources/index.rst diff --git a/docs/en/integration/deploy_integration/index.rst b/docs/en/integration/deploy_integration/index.rst new file mode 100644 index 00000000000..15bff333619 --- /dev/null +++ b/docs/en/integration/deploy_integration/index.rst @@ -0,0 +1,14 @@ +============================= +dispatch +============================= + +.. toctree:: + :maxdepth: 1 + + airflow_provider_demo + dolphinscheduler_task_demo + OpenMLDB_Byzer_taxi + + + + diff --git a/docs/en/integration/develop/index.rst b/docs/en/integration/develop/index.rst new file mode 100644 index 00000000000..13e8fad3619 --- /dev/null +++ b/docs/en/integration/develop/index.rst @@ -0,0 +1,8 @@ +============================= +Develop +============================= + +.. toctree:: + :maxdepth: 1 + + jupyter_notebook \ No newline at end of file diff --git a/docs/en/integration/index.rst b/docs/en/integration/index.rst new file mode 100644 index 00000000000..023bd3c9ab9 --- /dev/null +++ b/docs/en/integration/index.rst @@ -0,0 +1,13 @@ +============================= +Upstream and downstream ecology +============================= + +.. toctree:: + :maxdepth: 1 + + online_datasources/index + offline_data_sources/index + deploy_integration/index + develop/index + + diff --git a/docs/en/integration/online_datasources/index.rst b/docs/en/integration/online_datasources/index.rst new file mode 100644 index 00000000000..7b2232ef05b --- /dev/null +++ b/docs/en/integration/online_datasources/index.rst @@ -0,0 +1,13 @@ +============================= +online data source +============================= + +.. toctree:: + :maxdepth: 1 + + kafka_connector_demo + pulsar_connector_demo + rocketmq_connector + + + From 50a11edcce81cd92fd3b34af84e7bb3a13179e3f Mon Sep 17 00:00:00 2001 From: HuangWei Date: Thu, 12 Oct 2023 16:42:31 +0800 Subject: [PATCH 066/111] docs: add case when desc (#3523) --- .../functions_and_operators/operators.md | 27 ++++++++++++------- 1 file changed, 18 insertions(+), 9 deletions(-) diff --git a/docs/zh/openmldb_sql/functions_and_operators/operators.md b/docs/zh/openmldb_sql/functions_and_operators/operators.md index e5a7ca86afe..31d79184bd8 100644 --- a/docs/zh/openmldb_sql/functions_and_operators/operators.md +++ b/docs/zh/openmldb_sql/functions_and_operators/operators.md @@ -1,4 +1,4 @@ -# 运算符 +# 表达式和运算符 ## 运算符优先级 @@ -19,9 +19,7 @@ %left UNARY_PRECEDENCE // For all unary operators, +, -, ~ ``` -## 各类运算 - -### 1. 比较运算 +## 比较运算 | 操作符名 | 功能描述 | | :-------------- | :--------------------- | @@ -37,7 +35,7 @@ | `ILIKE` | 模糊匹配, 大小写不敏感 | | `RLIKE` | 正则表达式匹配 | -### 2. 逻辑运算 +## 逻辑运算 | 操作符名 | 功能描述 | | :---------- | :------- | @@ -46,7 +44,7 @@ | `XOR` | 逻辑与或 | | `NOT`, `!` | 逻辑非, unary operator | -### 3. 算术运算 +## 算术运算 | 操作符名 | 功能描述 | | :--------- | :------------------------------------------------------- | @@ -59,7 +57,7 @@ | `+` | Unary plus | | `-` | Unary minus, 只支持数值型操作数-number | -### 4. 位运算 +## 位运算 | 操作符名 | Description | | :------- | :---------- | @@ -68,7 +66,7 @@ | `^` | Bitwise XOR | | `~` | Bitwise NOT, unary operator | -### 5. 类型运算和函数 +## 类型运算和函数 | 操作符名 | Description | | :------------- | :--------------------------------------------------------- | @@ -97,7 +95,7 @@ SELECT INT(1.2); X:表示从原类型转换为目标类型的转换是不支持的 -| src\|dist | bool | smallint | int | float | int64 | double | timestamp | date | string | +| src\|dst | bool | smallint | int | float | int64 | double | timestamp | date | string | | :------------ | :----- | :------- | :----- | :----- | :----- | :----- | :-------- | :----- | :----- | | **bool** | Safe | Safe | Safe | Safe | Safe | Safe | UnSafe | X | Safe | | **smallint** | UnSafe | Safe | Safe | Safe | Safe | Safe | UnSafe | X | Safe | @@ -114,3 +112,14 @@ X:表示从原类型转换为目标类型的转换是不支持的 | 操作符名 | 功能描述 | | :------- | :------------------------ | | `=` | 赋值 (可用于 SET 语句中 ) | + +## 条件表达式 + +### CASE 表达式 + ```sql + SELECT case 'bb' when 'aa' then 'apple' else 'nothing' end; -- SIMPLE CASE WHEN + SELECT case + when 'bb'='aa' then 'apple' + when 'bb'='bb' then 'banana' + else 'nothing' end; -- SEARCHED CASE WHEN + ``` From db52ce909d07ffa0a07bbee97cd07fffe7e1c009 Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Fri, 13 Oct 2023 17:46:23 +0800 Subject: [PATCH 067/111] docs: change_for_status_and_index_of_maintain_folder (#3478) * Change for status and index of maintain folder * Update status.md * Update status.md --------- Co-authored-by: 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you can monitor the outcomes of these operations, along with the current health status of the database, through a series of commonly used command combinations. By sequentially running the `showopstatus` and `showtablestatus` commands, you can ultimately verify the successful completion of the relevant maintenance tasks. + +## Step 1: View Command Status with `showopstatus` + +The `showopstatus` command serves the purpose of observing the execution status of specific maintenance commands. The current NS client supports this command to track the status of maintenance commands like `addreplica`, `delreplica`, `migrate`, `offlineendpoint`, `recoverendpoint`, `changeleader`, and `recovertable`. For a comprehensive understanding of these supported maintenance commands, refer to the [Operations CLI](./cli.md) document. + +You can monitor the status of relevant commands by utilizing the `showopstatus` command of the [OpenMLDB Operations Tool](./openmldb_ops.md) `openmldb_ops.py`, as shown in the example below: + +```bash +python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --cmd=showopstatus +``` + +Due to the asynchronous nature of maintenance command execution, you might need to run the `showopstatus` command multiple times to confirm the final state. The state transitions for related commands can occur in three stages: + +1. kInited => kDoing => kDone: Indicates successful command execution. +2. kInited => kDoing => kFailed: Denotes a failed command execution. +3. kInited => kCancelled: This state may arise after manually executing the `cancelop` command. + +Once the command running status changes to `kDone`, it signifies the successful execution of relevant commands. You can then proceed to the subsequent steps and use the `showtablestatus` command to inspect the status of tables. + +## Step 2: View Table Status with `showtablestatus` + +After successfully executing the relevant maintenance commands, it's crucial to perform an additional verification to identify any anomalies in the table status. This verification can be conducted using the `showtablestatus` command within the [OpenMLDB Operations and Maintenance Tool](./openmldb_ops.md). For instance: + +```bash +python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --cmd=showtablestatus +``` + +Upon execution, this command will generate a series of table-related information. Of particular importance is the column labeled `Partition_unalive`. If this column's value is 0, it signifies that the table is in a normal state. Conversely, any non-zero value indicates the presence of an anomaly, as illustrated in the following example: + +![image-20230113144942187](images/showtablestatus.png) From e9f01ddce7e3f88a8c8c712cc8edc299f7ad6b8a Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Mon, 16 Oct 2023 16:39:07 +0800 Subject: [PATCH 068/111] docs: change_for_jupyter_notebook_of_integration_develop_folder (#3472) * Change for jupyter_notebook of integration develop folder * Update jupyter_notebook.md * Update jupyter_notebook.md --------- Co-authored-by: Siqi Wang --- docs/en/integration/develop/images/muti.png | Bin 0 -> 174040 bytes docs/en/integration/develop/images/single.png | Bin 0 -> 67164 bytes .../develop/images/support_function.png | Bin 0 -> 113659 bytes .../integration/develop/jupyter_notebook.md | 64 ++++++++++++++++++ 4 files changed, 64 insertions(+) create mode 100644 docs/en/integration/develop/images/muti.png create mode 100644 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m_El3w$X|a~}{3uP+L;nZn{oir` literal 0 HcmV?d00001 diff --git a/docs/en/integration/develop/jupyter_notebook.md b/docs/en/integration/develop/jupyter_notebook.md new file mode 100644 index 00000000000..b15488958a8 --- /dev/null +++ b/docs/en/integration/develop/jupyter_notebook.md @@ -0,0 +1,64 @@ +# Jupyter Notebook + +Jupyter Notebook offers various functionalities, such as data computation, code development, document editing, code execution, and result display, through a browser-based web page. It is currently one of the most popular and user-friendly development environments. This article introduces the seamless integration of OpenMLDB and Notebook, harnessing the functional features of OpenMLDB and the convenience of Notebook to create a fast and user-friendly machine-learning development environment. + +## Integration of the Magic Function + +The SQL magic function is an extension of Notebook that allows users to execute SQL statements directly in a Notebook cell without writing complex Python code. It also supports customized output. OpenMLDB provides a standard SQL magic function that allows users to write and run OpenMLDB-supported SQL statements directly in the Notebook. These statements are submitted to OpenMLDB for execution, and the results are previewed and displayed in the Notebook. + +### Register OpenMLDB SQL Magic Function + +To support OpenMLDB magic function in Notebook, register as follows: + + ```Python + import openmldb + db = openmldb.dbapi.connect(database='demo_db',zk='0.0.0.0:2181',zkPath='/openmldb') + openmldb.sql_magic.register(db) + ``` + +### Execute a Single SQL Statement + +Developers can use the prompt `%` to execute a single-line SQL statement, as shown in the following figure. + +![img](images/single.png) + +### Execute multiple SQL statement + +Developers can also use the prompt `%%` to write multi-line SQL statements, as shown in the following figure. + +![img](images/muti.png) + +Please note that currently, executing multiple SQL statements simultaneously within a Notebook cell is not supported. Each SQL statement needs to be executed separately in different cells. + +### Magic Function + +The SQL magic function provided by OpenMLDB can execute all supported SQL syntax, including the unique offline mode of OpenMLDB, which allows for asynchronously submitting complex big data SQL statements to the offline execution engine, as shown in the following figure. + +![img](images/support_function.png) + +For more detailed instructions on using the OpenMLDB magic function, please refer to [The Use of Notebook Magic Function](https://openmldb.ai/docs/en/main/quickstart/sdk/python_sdk.html#notebook-magic-function). + +## Integration of OpenMLDB Python SDK with Notebook + +Notebook supports the Python runtime kernel, enabling the import and usage of various Python libraries through import statements. OpenMLDB provides a fully functional Python SDK that can be called within Notebook. OpenMLDB Python SDK not only offers a DBAPI based on the Python PEP249 standard but also supports the mainstream SQLAlchemy interface, which enables connecting to existing OpenMLDB clusters with just one line of code. + +### The Use of OpenMLDB DBAPI + +Using the DBAPI interface is straightforward. You only need to specify the ZooKeeper address and node path for connection. Upon successful connection, corresponding log information will be displayed. You can call the DBAPI interface of the OpenMLDB Python SDK within Notebook for development, as detailed in [The Use of OpenMLDB DBAPI](https://openmldb.ai/docs/en/main/quickstart/sdk/python_sdk.html#openmldb-dbapi). + +```Python +import openmldb.dbapi +db = openmldb.dbapi.connect('demo_db','0.0.0.0:2181','/openmldb') +``` + +### Using OpenMLDB SQLAlchemy + +Using SQLAlchemy is also simple. You can establish the connection by specifying the URI of OpenMLDB through the SQLAlchemy library. Alternatively, you can connect to a standalone OpenMLDB database using IP and port as parameters, as shown below. + +```Python +import sqlalchemy as db +engine = db.create_engine('openmldb://demo_db?zk=127.0.0.1:2181&zkPath=/openmldb') +connection = engine.connect() +``` + +After a successful connection, development can be carried out through the SQLAlchemy interface of the OpenMLDB Python SDK, as detailed in [Using OpenMLDB SQLAlchemy](https://openmldb.ai/docs/en/main/quickstart/sdk/python_sdk.html#openmldb-sqlalchemy). From 8c8d07049cc96c8c658cf391254b91cca8cd9fdf Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Mon, 16 Oct 2023 16:41:22 +0800 Subject: [PATCH 069/111] docs: update_openmldb_quickstart_of_quickstart_folder (#3486) * docs-update-openmldb_quickstart-of-quickstart-folder * Update openmldb_quickstart.md * Docs: Update-modes_flow-image * Update openmldb_quickstart.md * Update openmldb_quickstart.md * Delete unused file --------- Co-authored-by: Siqi Wang --- .../quickstart/concepts/images/modes-flow.png | Bin 0 -> 333650 bytes docs/en/quickstart/images/cli_cluster.png | Bin 0 -> 358166 bytes docs/en/quickstart/images/state_finished.png | Bin 0 -> 170727 bytes docs/en/quickstart/openmldb_quickstart.md | 79 ++++++++---------- 4 files changed, 37 insertions(+), 42 deletions(-) create mode 100644 docs/en/quickstart/concepts/images/modes-flow.png create mode 100644 docs/en/quickstart/images/cli_cluster.png create mode 100644 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z=KX_-S5TPOX&_h#hf2NR=LM5Hb1Xt{Sgp^Z!h~K66QsWRj{v2$@{ka0P1if7?<~E9m;y-vDcsOW*3L zE!r)$5?_XKzpsEA?yf$7`Rq#ZpX}fNt-coDeB%~Cq@5q0KKlDGi!Z(JGjS*9@3z?s z6)v97uD~+Y%myIRkyU-y|EI>iB^8g?1N%g-WiwKbqu+Yp-{5ZCC4fkmSKl{$zvfa~ zeZLdf;kbKhB4Y(z-wEvOe6iLqYz5Wh-?jkXPyXDeDbt`!Q!}tAB*^ f|EF;ND)~@157vvZbV&OE__H~D)S~pu6W{$e5*KzK literal 0 HcmV?d00001 diff --git a/docs/en/quickstart/openmldb_quickstart.md b/docs/en/quickstart/openmldb_quickstart.md index 57c3c0d2e75..a670b5c8945 100644 --- a/docs/en/quickstart/openmldb_quickstart.md +++ b/docs/en/quickstart/openmldb_quickstart.md @@ -1,20 +1,19 @@ # OpenMLDB Quickstart -## Basic concepts +## Basic Concepts The main use case of OpenMLDB is as a real-time feature platform for machine learning. The basic usage process is shown in the following diagram: +![modes-flow](concepts/images/modes-flow.png) -![modes-flow](https://openmldb.ai/docs/zh/main/_images/modes-flow.png) +As shown, OpenMLDB covers the feature computing process in machine learning, from offline development to real-time serving online, providing a complete process. Please refer to the documentation for [The Usage Process and Execution Mode](./concepts/modes.html) in detail. This article will demonstrate a quickstart step by step, showing the process for basic usage. -As can be seen, OpenMLDB covers the feature computing process of machine learning, from offline development to real-time request service online, providing a complete process. Please refer to the documentation for [the usage process and execution mode](https://openmldb.ai/docs/zh/main/quickstart/concepts/modes.html) in detail. This article will demonstrate a quick start and understanding of OpenMLDB step by step, following the basic usage process. +## Preparation -## The preparation - -This article is developed and deployed based on OpenMLDB CLI, and it is necessary to download the sample data and start OpenMLDB CLI first. It is recommended to use Docker image for a quick experience (Note: due to some known issues of Docker on macOS, the sample program in this article may encounter problems in completing the operation smoothly on macOS. It is recommended to run it on **Linux or Windows**). +This sample program is developed and deployed based on OpenMLDB CLI, so you need to download the sample data and start OpenMLDB CLI first. It is recommended to use Docker image for a quick experience (Note: due to some known issues of Docker on macOS, the sample program in this article may encounter problems on macOS. It is recommended to run it on **Linux or Windows**). - Docker Version: >= 18.03 -### Pulls the image +### Pull the Image Execute the following command in the command line to pull the OpenMLDB image and start the Docker container: @@ -23,18 +22,10 @@ docker run -it 4pdosc/openmldb:0.8.3 bash ``` ``` {note} -After successfully starting the container, all subsequent commands in this tutorial are executed inside the container by default. If you need to access the OpenMLDB server inside the container from outside the container, please refer to the [CLI/SDK-container onebox documentation](https://openmldb.ai/docs/zh/main/reference/ip_tips.html#id3). -``` - -### Download sample data - -Execute the following command inside the container to download the sample data used in the subsequent process (**this step can be skipped for versions 0.7.0 and later**, as the data is already stored in the image): - -```bash -curl https://openmldb.ai/demo/data.parquet --output /work/taxi-trip/data/data.parquet +After successfully starting the container, all subsequent commands in this tutorial are executed inside the container by default. If you need to access the OpenMLDB server inside the container from outside the container, please refer to the [CLI/SDK-container onebox documentation](../reference/ip_tips.md#clisdk-containeronebox). ``` -### Start the server and client +### Start the Server and Client Start the OpenMLDB server: @@ -48,19 +39,19 @@ Start the OpenMLDB CLI client: /work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client ``` -After successfully starting OpenMLDB CLI, it will be displayed as shown in the following figure: +Successful started OpenMLDB CLI will look as shown in the following figure: -![image](https://openmldb.ai/docs/zh/main/_images/cli_cluster.png) +![image](./images/cli_cluster.png) -## Use process +## OpenMLDB Process -Referring to the core concepts, the process of using OpenMLDB generally includes six steps: creating databases and tables, importing offline data, offline feature computing, deploying SQL solutions, importing online data, and online real-time feature computing. +Referring to the core concepts, the process of using OpenMLDB generally includes six steps: create database and table, import offline data, compute offline feature, deploy SQL plan, import online data, and online real-time feature compute. ```{note} Unless otherwise specified, the commands demonstrated below are executed by default in OpenMLDB CLI. ``` -### Step 1: Create database and table +### Step 1: Create Database and Table Create `demo_db` and table `demo_table1`: @@ -71,7 +62,7 @@ USE demo_db; CREATE TABLE demo_table1(c1 string, c2 int, c3 bigint, c4 float, c5 double, c6 timestamp, c7 date); ``` -### Step 2: Importing offline data +### Step 2: Import Offline Data Switch to the offline execution mode, and import the sample data as offline data for offline feature calculation. @@ -90,17 +81,21 @@ Note that the `LOAD DATA` command is an asynchronous command by default. You can - To show the task logs: SHOW JOBLOG job_id -Here, we use `SHOW JOBS` to check the task status. Please wait for the task to be successfully completed (the `state` is changed to `FINISHED`), and then proceed to the next step. +Here, we use `SHOW JOBS` to check the task status. Please wait for the task to be successfully completed ( `state` changes to `FINISHED`), and then proceed to the next step. + +![image-20220111141358808](./images/state_finished.png) + +After the task is completed, if you wish to preview the data, you can execute the `SELECT * FROM demo_table1` statement in synchronous mode by setting `SET @@sync_job=true`. However, this approach has certain limitations, which are detailed in the [Offline Command Synchronous Mode](./function_boundary.md#offline-command-synchronous-mode) section. -![image-20220111141358808](https://openmldb.ai/docs/zh/main/_images/state_finished.png) +In the default asynchronous mode, executing `SELECT * FROM demo_table1` will initiate an asynchronous task, and the results will be stored in the log files of the Spark job, making them less convenient to access. If TaskManager is in local mode, you can use `SHOW JOBLOG ` to view the query print results in the stdout section. -After the task is completed, if you want to preview the data, you can use the `SELECT * FROM demo_table1` statement. It is recommended to first set the offline command to synchronous mode (`SET @@sync_job=true`); otherwise, the command will submit an asynchronous task, and the result will be saved in the log file of the Spark task, which is less convenient to view. +The most reliable way to access the data is to use the `SELECT INTO` command to export the data to a specified directory or directly examine the storage location after importing it. ```{note} -OpenMLDB also supports importing offline data through linked soft copies, without the need for hard data copying. Please refer to the parameter `deep_copy` in the [LOAD DATA INFILE documentation](https://openmldb.ai/docs/zh/main/openmldb_sql/dml/LOAD_DATA_STATEMENT.html) for more information. +OpenMLDB also supports importing offline data through linked soft copies, without the need for hard data copying. Please refer to the parameter `deep_copy` in the [LOAD DATA INFILE Documentation](../openmldb_sql/dml/LOAD_DATA_STATEMENT.md) for more information. ``` -### Step 3: Offline feature computing +### Step 3: Compute Offline Feature Assuming that we have determined the SQL script (`SELECT` statement) to be used for feature computation, we can use the following command for offline feature computation: @@ -120,7 +115,7 @@ Note: - The `SELECT` statement is used to perform SQL-based feature extraction and store the generated features in the directory specified by the `OUTFILE` parameter as `feature_data`, which can be used for subsequent machine learning model training. -### Step 4: Deploying SQL solutions +### Step 4: Deploy SQL plan Switch to online preview mode, and deploy the explored SQL plan to online. The SQL plan is named `demo_data_service`, and the online SQL used for feature extraction needs to be consistent with the corresponding offline feature calculation SQL. @@ -131,11 +126,11 @@ USE demo_db; DEPLOY demo_data_service SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); ``` -After the deployment, you can use the command `SHOW DEPLOYMENTS` to view the deployed SQL solutions. +After the deployment, you can use the command `SHOW DEPLOYMENTS` to view the deployed SQL. -### Step 5: Importing online data +### Step 5: Import Online Data -Import the downloaded sample data as online data for online feature computation in online preview mode. +Import the downloaded sample data as online data for online feature computation in online mode. ```sql -- OpenMLDB CLI @@ -161,9 +156,9 @@ Note that currently, it is required to successfully deploy the SQL plan before i The tutorial skips the step of real-time data access after importing data. In practical scenarios, as time progresses, the latest real-time data needs to be updated in the online database. This can be achieved through the OpenMLDB SDK or online data source connectors such as Kafka, Pulsar, etc. ``` -### Step 6: Online real-time feature computing +### Step 6: Online Real-Time Feature Computing -The development and deployment work based on OpenMLDB CLI is completed. Next, you can make real-time feature calculation requests in real-time request mode. First, exit OpenMLDB CLI and return to the command line of the operating system. +The development and deployment work is completed. Next, you can make real-time feature calculation requests in real-time request mode. First, exit OpenMLDB CLI and return to the command line of the operating system. ```sql -- OpenMLDB CLI @@ -176,10 +171,10 @@ According to the default deployment configuration, the http port for APIServer i http://127.0.0.1:9080/dbs/demo_db/deployments/demo_data_service \___________/ \____/ \_____________/ | | | - APIServer地址 Database名字 Deployment名字 + APIServerAddress Database Name Deployment Name ``` -Real-time requests accept input data in JSON format. Here are two examples: putting a row of data in the `input` field of the request. +Real-time requests accept input data in JSON format. Here are two examples: putting data in the `input` field of the request. **Example 1:** @@ -187,7 +182,7 @@ Real-time requests accept input data in JSON format. Here are two examples: putt curl http://127.0.0.1:9080/dbs/demo_db/deployments/demo_data_service -X POST -d'{"input": [["aaa", 11, 22, 1.2, 1.3, 1635247427000, "2021-05-20"]]}' ``` -Query the expected return result (the calculated features are stored in the `data` field): +Expected query result (the calculated features are stored in the `data` field): ```json {"code":0,"msg":"ok","data":{"data":[["aaa",11,22]]}} @@ -205,7 +200,7 @@ Expected query result: {"code":0,"msg":"ok","data":{"data":[["aaa",11,66]]}} ``` -### Description of real-time feature computing results +### Explanation of Real-Time Feature Computing Results The SQL execution for online real-time requests is different from batch processing mode. The request mode only performs SQL calculations on the data of the request row. In the previous example, it is the input of the POST request that serves as the request row. The specific process is as follows: Assuming that this row of data exists in the table `demo_table1`, and the following feature calculation SQL is executed on it: @@ -213,7 +208,7 @@ The SQL execution for online real-time requests is different from batch processi SELECT c1, c2, sum(c3) OVER w1 AS w1_c3_sum FROM demo_table1 WINDOW w1 AS (PARTITION BY demo_table1.c1 ORDER BY demo_table1.c6 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); ``` -**The calculation logic for Example 1 is as follows:** +**The Calculation Logic for Example 1 is as Follows:** 1. Filter rows in column c1 with the value "aaa" based on the `PARTITION BY` partition of the request row and window, and sort them in ascending order by column c6. Therefore, in theory, the intermediate data table sorted by partition should be as follows. The request row is the first row after sorting. @@ -227,7 +222,7 @@ aaa 12 22 2.200000 12.300000 1636097890000 1970-01-01 ----- ---- ---- ---------- ----------- --------------- ------------ ``` -2. The window range is `2 PRECEDING AND CURRENT ROW`, so in the above table, the actual window is extracted, and the request row is the smallest row with no preceding two rows, but the window includes the current row, so the window only contains the request row. +2. The window range is `2 PRECEDING AND CURRENT ROW`. In the above table, when the actual window is extracted, the request row is the smallest row with no preceding 2 rows. Therefore the window only contains the request row. 3. For window aggregation, the sum of column c3 for the data within the window (only one row) is calculated, resulting in 22. Therefore, the output result is: ```sql @@ -238,7 +233,7 @@ aaa 11 22 ----- ---- ----------- ``` -**The calculation logic for Example 2 is as follows:** +**The Calculation Logic for Example 2 is as Follows:** 1. According to the partition of the request line and window by `PARTITION BY`, select the rows where column c1 is "aaa" and sort them in ascending order by column c6. Therefore, theoretically, the intermediate data table after partition and sorting should be as shown in the table below. The request row is the last row after sorting. @@ -252,7 +247,7 @@ aaa 11 22 1.2 1.3 1637000000000 2021-11-16 ----- ---- ---- ---------- ----------- --------------- ------------ ``` -2. The window range is `2 PRECEDING AND CURRENT ROW`, so the actual window is extracted from the above table, and the two preceding rows of the request row exist, and the current row is also included. Therefore, there are three rows of data in the window. +2. The window range is `2 PRECEDING AND CURRENT ROW`. When the actual window is extracted from the above table, the two preceding 2 rows of the request row exist, together with the current row. Therefore, there are three rows of data in the window. 3. For window aggregation, the sum of column c3 for the data within the window (three rows) is calculated, resulting in 22 + 22 + 22 = 66. Therefore, the output result is: ```sql From ff58ddcdacf638c8ba472e152acd4bfceddd9333 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Mon, 16 Oct 2023 19:44:24 +0800 Subject: [PATCH 070/111] build(brpc): upgrade to apache/brpc 1.6.0 (#3415) * build(brpc): upgrade to apache/brpc 1.6.0 * build: apply brpc patch from 4pd --- third-party/cmake/FetchBrpc.cmake | 15 ++- third-party/patches/brpc-1.6.0-2235.patch | 91 ++++++++++++++++ third-party/patches/brpc-1.6.0.patch | 120 ++++++++++++++++++++++ 3 files changed, 222 insertions(+), 4 deletions(-) create mode 100644 third-party/patches/brpc-1.6.0-2235.patch create mode 100644 third-party/patches/brpc-1.6.0.patch diff --git a/third-party/cmake/FetchBrpc.cmake b/third-party/cmake/FetchBrpc.cmake index f4318ac21b3..af7e3b910d1 100644 --- a/third-party/cmake/FetchBrpc.cmake +++ b/third-party/cmake/FetchBrpc.cmake @@ -12,16 +12,23 @@ # See the License for the specific language governing permissions and # limitations under the License. -set(BRPC_URL https://github.com/4paradigm/incubator-brpc/archive/a85d1bde8df3a3e2e59a64ea5a3ee3122f9c6daa.zip) -message(STATUS "build brpc from ${BRPC_URL}") +set(BRPC_URL https://github.com/apache/brpc) +set(BRPC_TAG d2b73ec955dd04b06ab55065d9f3b4de1e608bbd) +message(STATUS "build brpc from ${BRPC_URL}@${BRPC_TAG}") + +find_package(Git REQUIRED) ExternalProject_Add( brpc - URL ${BRPC_URL} - URL_HASH SHA256=ea86d39313bed981357d2669daf1a858fcf1ec363465eda2eec60a8504a2c38e + GIT_REPOSITORY ${BRPC_URL} + GIT_TAG ${BRPC_TAG} PREFIX ${DEPS_BUILD_DIR} DOWNLOAD_DIR ${DEPS_DOWNLOAD_DIR}/brpc INSTALL_DIR ${DEPS_INSTALL_DIR} + PATCH_COMMAND ${GIT_EXECUTABLE} checkout . + COMMAND ${GIT_EXECUTABLE} clean -dfx . + COMMAND ${GIT_EXECUTABLE} apply ${PROJECT_SOURCE_DIR}/patches/brpc-1.6.0.patch + COMMAND ${GIT_EXECUTABLE} apply ${PROJECT_SOURCE_DIR}/patches/brpc-1.6.0-2235.patch DEPENDS gflags glog protobuf snappy leveldb gperf openssl CONFIGURE_COMMAND ${CMAKE_COMMAND} -H -B . -DWITH_GLOG=ON -DCMAKE_PREFIX_PATH=${DEPS_INSTALL_DIR} -DCMAKE_INSTALL_PREFIX=${DEPS_INSTALL_DIR} ${CMAKE_OPTS} BUILD_COMMAND ${CMAKE_COMMAND} --build . --target brpc-static -- ${MAKEOPTS} diff --git a/third-party/patches/brpc-1.6.0-2235.patch b/third-party/patches/brpc-1.6.0-2235.patch new file mode 100644 index 00000000000..450b4c6f427 --- /dev/null +++ b/third-party/patches/brpc-1.6.0-2235.patch @@ -0,0 +1,91 @@ +diff --git a/src/brpc/builtin/prometheus_metrics_service.cpp b/src/brpc/builtin/prometheus_metrics_service.cpp +index 7bf8bbf359..88f675bb81 100644 +--- a/src/brpc/builtin/prometheus_metrics_service.cpp ++++ b/src/brpc/builtin/prometheus_metrics_service.cpp +@@ -82,6 +82,12 @@ class PrometheusMetricsDumper : public bvar::Dumper { + std::map _m; + }; + ++butil::StringPiece GetMetricsName(const std::string& name) { ++ auto pos = name.find_first_of('{'); ++ int size = (pos == std::string::npos) ? name.size() : pos; ++ return butil::StringPiece(name.data(), size); ++} ++ + bool PrometheusMetricsDumper::dump(const std::string& name, + const butil::StringPiece& desc) { + if (!desc.empty() && desc[0] == '"') { +@@ -93,8 +99,11 @@ bool PrometheusMetricsDumper::dump(const std::string& name, + // Leave it to DumpLatencyRecorderSuffix to output Summary. + return true; + } +- *_os << "# HELP " << name << '\n' +- << "# TYPE " << name << " gauge" << '\n' ++ ++ auto metrics_name = GetMetricsName(name); ++ ++ *_os << "# HELP " << metrics_name << '\n' ++ << "# TYPE " << metrics_name << " gauge" << '\n' + << name << " " << desc << '\n'; + return true; + } +diff --git a/src/brpc/builtin/prometheus_metrics_service.h b/src/brpc/builtin/prometheus_metrics_service.h +index c844e1e7a0..541b395c82 100644 +--- a/src/brpc/builtin/prometheus_metrics_service.h ++++ b/src/brpc/builtin/prometheus_metrics_service.h +@@ -31,6 +31,7 @@ class PrometheusMetricsService : public brpc_metrics { + ::google::protobuf::Closure* done) override; + }; + ++butil::StringPiece GetMetricsName(const std::string& name); + int DumpPrometheusMetricsToIOBuf(butil::IOBuf* output); + + } // namepace brpc +diff --git a/test/brpc_prometheus_metrics_service_unittest.cpp b/test/brpc_prometheus_metrics_service_unittest.cpp +new file mode 100644 +index 0000000000..b5b0bc10d5 +--- /dev/null ++++ b/test/brpc_prometheus_metrics_service_unittest.cpp +@@ -0,0 +1,42 @@ ++// Licensed to the Apache Software Foundation (ASF) under one ++// or more contributor license agreements. See the NOTICE file ++// distributed with this work for additional information ++// regarding copyright ownership. The ASF licenses this file ++// to you under the Apache License, Version 2.0 (the ++// "License"); you may not use this file except in compliance ++// with the License. You may obtain a copy of the License at ++// ++// http://www.apache.org/licenses/LICENSE-2.0 ++// ++// Unless required by applicable law or agreed to in writing, ++// software distributed under the License is distributed on an ++// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY ++// KIND, either express or implied. See the License for the ++// specific language governing permissions and limitations ++// under the License. ++ ++// Date: 2023/05/06 15:10:00 ++ ++#include ++ ++#include "butil/strings/string_piece.h" ++#include "butil/iobuf.h" ++#include "brpc/builtin/prometheus_metrics_service.h" ++ ++namespace { ++ ++class PrometheusMetricsDumperTest : public testing::Test { ++protected: ++ void SetUp() {} ++ void TearDown() {} ++}; ++ ++TEST_F(PrometheusMetricsDumperTest, GetMetricsName) { ++ EXPECT_EQ("", brpc::GetMetricsName("")); ++ ++ EXPECT_EQ("commit_count", brpc::GetMetricsName("commit_count")); ++ ++ EXPECT_EQ("commit_count", brpc::GetMetricsName("commit_count{region=\"1000\"}")); ++} ++ ++} diff --git a/third-party/patches/brpc-1.6.0.patch b/third-party/patches/brpc-1.6.0.patch new file mode 100644 index 00000000000..00dda45df47 --- /dev/null +++ b/third-party/patches/brpc-1.6.0.patch @@ -0,0 +1,120 @@ +diff --git a/src/brpc/builtin/status_service.cpp b/src/brpc/builtin/status_service.cpp +index a6f5a4dae8..67880ec1a3 100644 +--- a/src/brpc/builtin/status_service.cpp ++++ b/src/brpc/builtin/status_service.cpp +@@ -37,6 +37,8 @@ extern MethodStatus* g_client_msg_status; + extern MethodStatus* g_server_msg_status; + } + ++DECLARE_bool(enable_vars_service); ++ + // Defined in vars_service.cpp + void PutVarsHeading(std::ostream& os, bool expand_all); + +@@ -47,7 +49,7 @@ void StatusService::default_method(::google::protobuf::RpcController* cntl_base, + ClosureGuard done_guard(done); + Controller *cntl = static_cast(cntl_base); + const Server* server = cntl->server(); +- const bool use_html = UseHTML(cntl->http_request()); ++ const bool use_html = FLAGS_enable_vars_service ? UseHTML(cntl->http_request()) : false; + + // NOTE: the plain output also fits format of public/configure so that user + // can load values more easily. +diff --git a/src/brpc/server.cpp b/src/brpc/server.cpp +index ce5a0dd2a3..4e1fbbe424 100644 +--- a/src/brpc/server.cpp ++++ b/src/brpc/server.cpp +@@ -109,6 +109,13 @@ butil::static_atomic g_running_server_count = BUTIL_STATIC_ATOMIC_INIT(0); + // Following services may have security issues and are disabled by default. + DEFINE_bool(enable_dir_service, false, "Enable /dir"); + DEFINE_bool(enable_threads_service, false, "Enable /threads"); ++DEFINE_bool(enable_status_service, false, "Enable /status"); ++DEFINE_bool(enable_vars_service, false, "Enable /vars"); ++DEFINE_bool(enable_connections_service, false, "Enable /connections"); ++DEFINE_bool(enable_flags_service, false, "Enable /flags"); ++DEFINE_bool(enable_rpcz_service, false, "Enable /rpcz"); ++DEFINE_bool(enable_hotspots_service, false, "Enable /hotspots/cpu /hotspots/heap /hotspots/growth /hotspots/contention"); ++DEFINE_bool(enable_index_service, false, "Enable /index?as_more"); + + DECLARE_int32(usercode_backup_threads); + DECLARE_bool(usercode_in_pthread); +@@ -465,31 +472,31 @@ Server::~Server() { + + int Server::AddBuiltinServices() { + // Firstly add services shown in tabs. +- if (AddBuiltinService(new (std::nothrow) StatusService)) { ++ if (FLAGS_enable_status_service && AddBuiltinService(new (std::nothrow) StatusService)) { + LOG(ERROR) << "Fail to add StatusService"; + return -1; + } +- if (AddBuiltinService(new (std::nothrow) VarsService)) { ++ if (FLAGS_enable_vars_service && AddBuiltinService(new (std::nothrow) VarsService)) { + LOG(ERROR) << "Fail to add VarsService"; + return -1; + } +- if (AddBuiltinService(new (std::nothrow) ConnectionsService)) { ++ if (FLAGS_enable_connections_service && AddBuiltinService(new (std::nothrow) ConnectionsService)) { + LOG(ERROR) << "Fail to add ConnectionsService"; + return -1; + } +- if (AddBuiltinService(new (std::nothrow) FlagsService)) { ++ if (FLAGS_enable_flags_service && AddBuiltinService(new (std::nothrow) FlagsService)) { + LOG(ERROR) << "Fail to add FlagsService"; + return -1; + } +- if (AddBuiltinService(new (std::nothrow) RpczService)) { ++ if (FLAGS_enable_rpcz_service && AddBuiltinService(new (std::nothrow) RpczService)) { + LOG(ERROR) << "Fail to add RpczService"; + return -1; + } +- if (AddBuiltinService(new (std::nothrow) HotspotsService)) { ++ if (FLAGS_enable_hotspots_service && AddBuiltinService(new (std::nothrow) HotspotsService)) { + LOG(ERROR) << "Fail to add HotspotsService"; + return -1; + } +- if (AddBuiltinService(new (std::nothrow) IndexService)) { ++ if (FLAGS_enable_index_service && AddBuiltinService(new (std::nothrow) IndexService)) { + LOG(ERROR) << "Fail to add IndexService"; + return -1; + } +diff --git a/src/butil/errno.cpp b/src/butil/errno.cpp +index 9b964e114f..2e1c4d379d 100644 +--- a/src/butil/errno.cpp ++++ b/src/butil/errno.cpp +@@ -55,14 +55,19 @@ int DescribeCustomizedErrno( + #if defined(OS_MACOSX) + const int rc = strerror_r(error_code, tls_error_buf, ERROR_BUFSIZE); + if (rc != EINVAL) +-#else +- desc = strerror_r(error_code, tls_error_buf, ERROR_BUFSIZE); +- if (desc && strncmp(desc, "Unknown error", 13) != 0) +-#endif + { + fprintf(stderr, "WARNING: Fail to define %s(%d) which is already defined as `%s'", + error_name, error_code, desc); + } ++#else ++ desc = strerror_r(error_code, tls_error_buf, ERROR_BUFSIZE); ++ if (desc != tls_error_buf) ++ { ++ fprintf(stderr, ++ "%d is defined as `%s', probably is the system errno.\n", ++ error_code, desc); ++ } ++#endif + } + errno_desc[error_code - ERRNO_BEGIN] = description; + return 0; // must +diff --git a/src/bvar/default_variables.cpp b/src/bvar/default_variables.cpp +index be02c50a9a..f71f9dd7cf 100644 +--- a/src/bvar/default_variables.cpp ++++ b/src/bvar/default_variables.cpp +@@ -111,7 +111,7 @@ static bool read_proc_status(ProcStat &stat) { + } + const std::string& result = oss.str(); + if (sscanf(result.c_str(), "%d %d %d %d" +- "%d %u %ld %ld", ++ "%d %x %ld %ld", + &stat.pid, &stat.ppid, &stat.pgrp, &stat.session, + &stat.tpgid, &stat.flags, &stat.priority, &stat.nice) != 8) { + PLOG(WARNING) << "Fail to sscanf"; From 024a0d0f5cf4763f5a6a32c8bcffe231547a6f58 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Mon, 16 Oct 2023 20:29:28 +0800 Subject: [PATCH 071/111] feat(sql): lazy last join (#3533) * feat(online): support lazy last join For SQL `A last join (B last join C)`, it'll optimize and run `B last join C` lazily. Both batch mode and request(batch-request) mode are considered. * fix: tests for `A join (B join C)` and also: - rm redundant code path in group_and_sort_optimized.cc * fix: comment * fix: lazy last join correct expr resolving in group_and_sort_optimized * fix(online): last join (where) with cluster optimized * fix(optimizer): skip cluster optimize for specific condition Skip for the case `JOIN(TABLE, ...)`. Cluster optimize only happen with `JOIN(ROW, TABLE)`. * fix(optimizer): distinct column name from different table Do not optimize target table if resolved column is from different table, even column name does be the same. * test: more cases for lazy last join * chore: rm mut_keys * fix(optimizer): KeysOptimizedImpl --- .gitignore | 7 + cases/query/last_join_query.yaml | 810 +++++++++++++++++- cases/query/last_join_where.yaml | 15 +- cases/query/last_join_window_query.yaml | 10 +- .../toydb/src/testing/toydb_engine_test.cc | 7 + hybridse/include/node/node_manager.h | 2 +- hybridse/include/node/sql_node.h | 20 +- .../include/passes/expression/expr_pass.h | 12 +- hybridse/include/vm/engine.h | 3 - hybridse/include/vm/physical_op.h | 28 +- hybridse/include/vm/schemas_context.h | 7 +- hybridse/src/node/node_manager.cc | 2 +- .../src/passes/physical/cluster_optimized.cc | 15 +- .../physical/group_and_sort_optimized.cc | 276 +++--- .../physical/group_and_sort_optimized.h | 29 +- hybridse/src/vm/engine.cc | 21 +- hybridse/src/vm/generator.cc | 4 + hybridse/src/vm/generator.h | 3 + hybridse/src/vm/internal/node_helper.cc | 42 + hybridse/src/vm/internal/node_helper.h | 5 + hybridse/src/vm/runner.cc | 93 +- hybridse/src/vm/runner.h | 22 +- hybridse/src/vm/schemas_context.cc | 24 +- hybridse/src/vm/transform.cc | 141 +-- hybridse/src/vm/transform.h | 13 +- 25 files changed, 1272 insertions(+), 339 deletions(-) create mode 100644 hybridse/src/vm/internal/node_helper.cc diff --git a/.gitignore b/.gitignore index e7e91890044..14fb8ee1485 100644 --- a/.gitignore +++ b/.gitignore @@ -108,3 +108,10 @@ allure-results/ /python/openmldb_autofe/*.egg-info/ # go sdk !go.mod + +# tag files +**/tags +**/GPATH +**/GRTAGS +**/GTAGS +**/cscope.out diff --git a/cases/query/last_join_query.yaml b/cases/query/last_join_query.yaml index e37d87a4044..2715bcf7341 100644 --- a/cases/query/last_join_query.yaml +++ b/cases/query/last_join_query.yaml @@ -12,10 +12,27 @@ # See the License for the specific language governing permissions and # limitations under the License. + #################################################################################################### + # LAST JOINs + # support modes: + # - online request (right source optimized) + # - batch request (right source optimized) + # - online preview (standalone) + # - offline mode + # unsupport: + # - online preview (in cluster) + # - online request (right source not optimized) + # - batch request (right source not optimized) + # + # Right source is optimized case: + # 1. Right source is ANYOP(T2): T2 optimized with a concret index + # 2. Right source is ANYOP(JOIN(T2, T3)): both T2 and T3 optimized with concret indexs + #################################################################################################### + cases: - id: 0 desc: LAST JOIN 右表未命中索引 - mode: rtidb-unsupport + mode: request-unsupport sql: | SELECT t1.col1 as id, t1.col0 as t1_col0, t1.col1 + t2.col1 + 1 as test_col1, t1.col2 as t1_col2, str1 FROM t1 last join t2 order by t2.col5 on t1.col1=t2.col1 and t1.col5 = t2.col5; @@ -178,6 +195,19 @@ cases: Z, 3, 3 U, 4, 4 V, 5, 5 + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.col1 -> id, t1.col0, t2.c0, t3.column0)) + REQUEST_JOIN(type=kJoinTypeConcat) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#5)) + SIMPLE_PROJECT(sources=(#5 -> t1.col1)) + DATA_PROVIDER(request=t1) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#5)) + SIMPLE_PROJECT(sources=(#5 -> t1.col1)) + DATA_PROVIDER(request=t1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) expect: schema: id:int32, col0:string, c0:string, column0:string order: id @@ -335,8 +365,6 @@ cases: 5, 2, 1590115423900 - id: 10 - desc: 右表没有匹配[FEX-903] - mode: offline-unsupport inputs: - name: t1 columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] @@ -361,3 +389,779 @@ cases: - ["aa",2,13,1590738989000] - ["bb",21,131,1590738990000] - ["cc",41,null,null] + + #################################################################################################### + # LAZY LAST JOINs + #################################################################################################### + - id: 11 + # t1------>(t2------->t3) + # │ └-(t3.c1)-┘ + # └-(t2.c1)-┘ + # Easiest path, t1 finally joins t2's column + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r + from t1 last join ( + select t2.*, t3.c1 as c1r, t3.c2 as c2r + from t2 last join t3 on t2.c1 = t3.c1 + ) tx + on t1.c1 = tx.c1 + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1 -> c1r, t3.c2 -> c2r)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + data: | + aa, 2, aa, aa, 2 + bb, 3, bb, NULL, NULL + cc, 4, NULL, NULL, NULL + - id: 12 + # t1------>(t2------->t3) + # │ └-(t3.c1)-┘ + # └--(t2.c1)----------┘ + desc: unsupport join on t3 in request and batch(clusterd) + mode: request-unsupport + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1x string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1x:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r + from t1 last join ( + select t2.*, t3.c1x as c1r, t3.c2 as c2r + from t2 last join t3 on t2.c1 = t3.c1x + ) tx + on t1.c1 = tx.c1r + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + JOIN(type=LastJoin, condition=, left_keys=(t1.c1), right_keys=(tx.c1r), index_keys=) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1x -> c1r, t3.c2 -> c2r)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(table=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + data: | + aa, 2, aa, aa, 2 + bb, 3, NULL, NULL, NULL + cc, 4, NULL, NULL, NULL + - id: 13 + # t1------>(t2------->t3) + # │ └-(t3.c1)-┘ + # └-(t2.c1)-----------┘ + desc: t2 un-optimized, t2 & t3 has the same schema + # the case checks if optimizer can distinct same column name from two tables + mode: request-unsupport + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r + from t1 last join ( + select t2.*, t3.c1 as c1r, t3.c2 as c2r + from t2 last join t3 on t2.c1 = t3.c1 + ) tx + on t1.c1 = tx.c1r + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + JOIN(type=LastJoin, condition=, left_keys=(t1.c1), right_keys=(tx.c1r), index_keys=) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1 -> c1r, t3.c2 -> c2r)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(table=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + data: | + aa, 2, aa, aa, 2 + bb, 3, NULL, NULL, NULL + cc, 4, NULL, NULL, NULL + - id: 14 + # t1------>(t2------->t3) + # │ └-(t3.c1)-┘ + # └-(t2.c1)-┘ + desc: t2 un-optimized due to no equal expr + mode: request-unsupport + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r + from t1 last join ( + select t2.*, t3.c1 as c1r, t3.c2 as c2r + from t2 last join t3 on t2.c1 = t3.c1 + ) tx + on t1.c1 != tx.c1 + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + JOIN(type=LastJoin, condition=t1.c1 != tx.c1, left_keys=, right_keys=, index_keys=) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1 -> c1r, t3.c2 -> c2r)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(table=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + data: | + aa, 2, dd, dd, 41 + bb, 3, dd, dd, 41 + cc, 4, dd, dd, 41 + - id: 15 + # t1------>(t2------->t3) + # │ └-(t3.c1)-┘ + # └-(t2.c1)-┘ + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r + from t1 last join ( + select t2.*, t3.c1 as c1r, t3.c2 as c2r + from t2 last join t3 on t2.c1 = t3.c1 + ) tx + order by tx.c4 + on t1.c1 = tx.c1 + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1 -> c1r, t3.c2 -> c2r)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + REQUEST_JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + data: | + aa, 2, aa, aa, 2 + bb, 3, bb, NULL, NULL + cc, 4, NULL, NULL, NULL + - id: 16 + # t1------>(t2------->t3) + # │ └-(t3.c1)-┘ + # └-(t2.c1)-┘ + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r + from t1 last join ( + select t2.c1, t2.c4 as c4l, t3.c1 as c1r, t3.c2 as c2r + from t2 last join t3 on t2.c1 = t3.c1 + ) tx + order by tx.c4l + on t1.c1 = tx.c1 + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + REQUEST_JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + data: | + aa, 2, aa, aa, 2 + bb, 3, bb, NULL, NULL + cc, 4, NULL, NULL, NULL + - id: 17 + # t1------>(t2------->(t3-------t4) + # │ │ └-(t4.c1)-┘ + # │ └-(t3.c1)--┘ + # └-(t2.c1)-┘ + desc: multiple lazy last join + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + - name: t4 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["bb",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r, c1rr + from t1 last join ( + select t2.c1, t2.c4 as c4l, t3.c1 as c1r, t3.c2 as c2r, t3.c1rr + from t2 last join ( + select t3.*, t4.c1 as c1rr + from t3 last join t4 + on t3.c1 = t4.c1 + ) t3 + on t2.c1 = t3.c1 + ) tx + order by tx.c4l + on t1.c1 = tx.c1 + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, c1rr)) + JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r, t3.c1rr)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + RENAME(name=t3) + SIMPLE_PROJECT(sources=(t3.c1, t3.c2, t3.c3, t3.c4, t4.c1 -> c1rr)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t3.c1)) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, c1rr)) + REQUEST_JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r, t3.c1rr)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + RENAME(name=t3) + SIMPLE_PROJECT(sources=(t3.c1, t3.c2, t3.c3, t3.c4, t4.c1 -> c1rr)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t3.c1)) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, c1rr)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r, t3.c1rr)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + RENAME(name=t3) + SIMPLE_PROJECT(sources=(t3.c1, t3.c2, t3.c3, t3.c4, t4.c1 -> c1rr)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t3.c1)) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + - c1rr string + data: | + aa, 2, aa, aa, 2, aa + bb, 3, bb, NULL, NULL, NULL + cc, 4, NULL, NULL, NULL, NULL + - id: 18 + # t1------>(t2------->(t3-------t4) + # │ │ └-(t4.c1)-┘ + # │ └-(t3.c1)--┘ + # └-(t2.c1)-┘ + mode: request-unsupport + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["bb",21,131,1590738990000] + - ["dd",41,151,1590738991000] + - name: t4 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r, c1rr + from t1 last join ( + select t2.c1, t2.c4 as c4l, t3.c1 as c1r, t3.c2 as c2r, t3.c1rr + from t2 last join ( + select t3.*, t4.c1 as c1rr + from t3 last join t4 + on t3.c1 = t4.c1 + ) t3 + on t2.c1 = t3.c1rr + ) tx + order by tx.c4l + on t1.c1 = tx.c1 + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, c1rr)) + JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r, t3.c1rr)) + JOIN(type=LastJoin, condition=, left_keys=(t2.c1), right_keys=(t3.c1rr), index_keys=) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + RENAME(name=t3) + SIMPLE_PROJECT(sources=(t3.c1, t3.c2, t3.c3, t3.c4, t4.c1 -> c1rr)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t3.c1)) + DATA_PROVIDER(table=t3) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + - c1rr string + data: | + aa, 2, aa, aa, 2, aa + bb, 3, bb, NULL, NULL, NULL + cc, 4, NULL, NULL, NULL, NULL + - id: 19 + # t1------>(t2------->(t3-------t4) + # │ └-(t3.c1)--┘ │ + # │ └--(t4.c1)------┘ + # └-(t2.c1)-┘ + desc: nested last join + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + - name: t4 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["bb",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r, c1rr + from t1 last join ( + select t2.c1, t2.c4 as c4l, t3.c1 as c1r, t3.c2 as c2r, t4.c1 as c1rr + from t2 last join t3 + on t2.c1 = t3.c1 + last join t4 + on t2.c1 = t4.c1 + ) tx + on t1.c1 = tx.c1 + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, c1rr)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r, t4.c1 -> c1rr)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, c1rr)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r, t4.c1 -> c1rr)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, c1rr)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r, t4.c1 -> c1rr)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + - c1rr string + data: | + aa, 2, aa, aa, 2, aa + bb, 3, bb, NULL, NULL, bb + cc, 4, NULL, NULL, NULL, NULL + - id: 20 + # t1------>(t2------->(t3-------t4) + # │ └-(t3.c1)--┘ │ + # └-(t2.c1)----┘ │ + # └-------------------------┘ + desc: nested last join + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",1590738989000] + - ["bb",1590738990000] + - ["dd",1590738991000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + - name: t4 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,13,1590738989000] + - ["cc",21,131,1590738990000] + - ["dd",41,151,1590738991000] + sql: | + select t1.c1, t1.c2, tx.c1 as c1l, c1r, c2r, t4.c1 as c1rr + from t1 last join ( + select t2.c1, t2.c4 as c4l, t3.c1 as c1r, t3.c2 as c2r + from t2 last join t3 + on t2.c1 = t3.c1 + ) tx + on t1.c1 = tx.c1 + last join t4 + on tx.c1 = t4.c1 + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, t4.c1 -> c1rr)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(tx.c1)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r)) + JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, t4.c1 -> c1rr)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(tx.c1)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.c1 -> c1l, c1r, c2r, t4.c1 -> c1rr)) + REQUEST_JOIN(type=kJoinTypeConcat) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#123)) + SIMPLE_PROJECT(sources=(#123 -> tx.c1)) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t2.c4 -> c4l, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + expect: + order: c1 + columns: + - c1 string + - c2 int + - c1l string + - c1r string + - c2r int + - c1rr string + data: | + aa, 2, aa, aa, 2, aa + bb, 3, bb, NULL, NULL, NULL + cc, 4, NULL, NULL, NULL, NULL diff --git a/cases/query/last_join_where.yaml b/cases/query/last_join_where.yaml index 6a341d001d8..110debcfcdf 100644 --- a/cases/query/last_join_where.yaml +++ b/cases/query/last_join_where.yaml @@ -8,7 +8,6 @@ cases: - id: 0 desc: LASTJOIN(FILTER) deployable: true - mode: batch-request-unsupport sql: | SELECT t1.c1, @@ -38,6 +37,16 @@ cases: RENAME(name=t2) FILTER_BY(condition=, left_keys=(), right_keys=(), index_keys=(aa)) DATA_PROVIDER(type=Partition, table=t2, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, t2.c1 -> c21)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(#5), right_keys=(#9), index_keys=) + SIMPLE_PROJECT(sources=(#5 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=t2) + FILTER_BY(condition=, left_keys=(), right_keys=(), index_keys=(aa)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) expect: columns: - c1 string @@ -51,7 +60,6 @@ cases: - id: 1 desc: LASTJOIN(SimpleOPS(FILTER)) - mode: batch-request-unsupport deployable: true sql: | SELECT @@ -140,7 +148,6 @@ cases: - id: 3 desc: LASTJOIN(FILTER) - mode: batch-request-unsupport deployable: true sql: | SELECT @@ -232,7 +239,6 @@ cases: LASTJOIN(SimpleOps(FILTER)), different index with join, fine to online if there is no order by of last join deployable: true - mode: batch-request-unsupport sql: | SELECT t1.c1, @@ -322,7 +328,6 @@ cases: - id: 7 desc: LASTJOIN(SimpleOps(FILTER)) hit same index with order by - mode: batch-request-unsupport deployable: true sql: | SELECT diff --git a/cases/query/last_join_window_query.yaml b/cases/query/last_join_window_query.yaml index 96467eaf787..a11fce4369f 100644 --- a/cases/query/last_join_window_query.yaml +++ b/cases/query/last_join_window_query.yaml @@ -321,11 +321,11 @@ cases: min(c3r) OVER w1 as sumb, from ( select - {0}.c3 as c3l, - {0}.id as idx, - {1}.c3 as c3r, - {0}.c1 as c1a, - {0}.c7 as c7a + t0.c3 as c3l, + t0.id as idx, + t1.c3 as c3r, + t0.c1 as c1a, + t0.c7 as c7a from t0 last join t1 on t0.c1=t1.c1 ) WINDOW w1 AS ( diff --git a/hybridse/examples/toydb/src/testing/toydb_engine_test.cc b/hybridse/examples/toydb/src/testing/toydb_engine_test.cc index a4cd2b095d8..02438aeebac 100644 --- a/hybridse/examples/toydb/src/testing/toydb_engine_test.cc +++ b/hybridse/examples/toydb/src/testing/toydb_engine_test.cc @@ -91,6 +91,13 @@ TEST_P(EngineTest, TestClusterBatchRequestEngine) { } } +// ====================================================== / +// BatchRequestEngineTest +// test batch request mode only, with yaml: +// - case/function/test_batch_request.yaml +// +// TODO(ace): merge to EngineTest above simply +// ====================================================== / TEST_P(BatchRequestEngineTest, TestBatchRequestEngine) { auto& sql_case = GetParam(); LOG(INFO) << "ID: " << sql_case.id() << ", DESC: " << sql_case.desc(); diff --git a/hybridse/include/node/node_manager.h b/hybridse/include/node/node_manager.h index 2dcd013e36f..ab87e588a53 100644 --- a/hybridse/include/node/node_manager.h +++ b/hybridse/include/node/node_manager.h @@ -151,7 +151,7 @@ class NodeManager { WindowDefNode *MergeWindow(const WindowDefNode *w1, const WindowDefNode *w2); OrderExpression* MakeOrderExpression(const ExprNode* expr, const bool is_asc); - OrderByNode *MakeOrderByNode(const ExprListNode *order_expressions); + OrderByNode *MakeOrderByNode(ExprListNode *order_expressions); FrameExtent *MakeFrameExtent(SqlNode *start, SqlNode *end); SqlNode *MakeFrameBound(BoundType bound_type); SqlNode *MakeFrameBound(BoundType bound_type, ExprNode *offset); diff --git a/hybridse/include/node/sql_node.h b/hybridse/include/node/sql_node.h index 6118c164193..bbdfc83313f 100644 --- a/hybridse/include/node/sql_node.h +++ b/hybridse/include/node/sql_node.h @@ -476,9 +476,10 @@ class ExprNode : public SqlNode { virtual bool IsListReturn(ExprAnalysisContext *ctx) const { return false; } /** - * Default expression node deep copy implementation + * Returns new ExprNode with all of fields copyed, excepting descendants ExprNodes. */ virtual ExprNode *ShadowCopy(NodeManager *) const = 0; + ExprNode *DeepCopy(NodeManager *) const override; // Get the compatible type that lhs and rhs can both casted into @@ -581,8 +582,13 @@ class FnNodeList : public FnNode { }; class OrderExpression : public ExprNode { public: + // expr maybe null OrderExpression(const ExprNode *expr, const bool is_asc) - : ExprNode(kExprOrderExpression), expr_(expr), is_asc_(is_asc) {} + : ExprNode(kExprOrderExpression), expr_(expr), is_asc_(is_asc) { + if (expr != nullptr) { + AddChild(const_cast(expr)); + } + } ~OrderExpression() {} void Print(std::ostream &output, const std::string &org_tab) const; const std::string GetExprString() const; @@ -597,8 +603,10 @@ class OrderExpression : public ExprNode { }; class OrderByNode : public ExprNode { public: - explicit OrderByNode(const ExprListNode *order_expressions) - : ExprNode(kExprOrder), order_expressions_(order_expressions) {} + explicit OrderByNode(ExprListNode *order_expressions) + : ExprNode(kExprOrder), order_expressions_(order_expressions) { + AddChild(order_expressions); + } ~OrderByNode() {} void Print(std::ostream &output, const std::string &org_tab) const; @@ -623,7 +631,7 @@ class OrderByNode : public ExprNode { return order_expression->expr(); } bool is_asc() const { return false; } - const ExprListNode *order_expressions_; + ExprListNode *order_expressions_; }; class TableRefNode : public SqlNode { public: @@ -1648,7 +1656,7 @@ class ColumnRefNode : public ExprNode { static ColumnRefNode *CastFrom(ExprNode *node); void Print(std::ostream &output, const std::string &org_tab) const; - const std::string GetExprString() const; + const std::string GetExprString() const override; const std::string GenerateExpressionName() const; virtual bool Equals(const ExprNode *node) const; ColumnRefNode *ShadowCopy(NodeManager *) const override; diff --git a/hybridse/include/passes/expression/expr_pass.h b/hybridse/include/passes/expression/expr_pass.h index 1c41307c28a..c88b7ee8585 100644 --- a/hybridse/include/passes/expression/expr_pass.h +++ b/hybridse/include/passes/expression/expr_pass.h @@ -65,15 +65,15 @@ class ExprReplacer { void AddReplacement(const node::ExprIdNode* arg, node::ExprNode* repl); void AddReplacement(const node::ExprNode* expr, node::ExprNode* repl); void AddReplacement(size_t column_id, node::ExprNode* repl); - void AddReplacement(const std::string& relation_name, - const std::string& column_name, node::ExprNode* repl); + void AddReplacement(const std::string& relation_name, const std::string& column_name, node::ExprNode* repl); - hybridse::base::Status Replace(node::ExprNode* root, - node::ExprNode** output) const; + // For the given `ExprNode` tree, do the in-place replacements specified by `AddReplacement` calls. + // Returns new ExprNode if `root` is ExprIdNode/ColumnIdNode/ColumnRefNode, `root` with its descendants replaced + // otherwise + hybridse::base::Status Replace(node::ExprNode* root, node::ExprNode** output) const; private: - hybridse::base::Status DoReplace(node::ExprNode* root, - std::unordered_set* visited, + hybridse::base::Status DoReplace(node::ExprNode* root, std::unordered_set* visited, node::ExprNode** output) const; std::unordered_map arg_id_map_; diff --git a/hybridse/include/vm/engine.h b/hybridse/include/vm/engine.h index 3cb7564be98..e552e5889c6 100644 --- a/hybridse/include/vm/engine.h +++ b/hybridse/include/vm/engine.h @@ -420,9 +420,6 @@ class Engine { EngineOptions GetEngineOptions(); private: - // Get all dependent (db, table) info from physical plan - Status GetDependentTables(const PhysicalOpNode*, std::set>*); - std::shared_ptr GetCacheLocked(const std::string& db, const std::string& sql, EngineMode engine_mode); diff --git a/hybridse/include/vm/physical_op.h b/hybridse/include/vm/physical_op.h index c884d0bb7e5..ee3634615c8 100644 --- a/hybridse/include/vm/physical_op.h +++ b/hybridse/include/vm/physical_op.h @@ -155,8 +155,10 @@ class Sort : public FnComponent { public: explicit Sort(const node::OrderByNode *orders) : orders_(orders) {} virtual ~Sort() {} + const node::OrderByNode *orders() const { return orders_; } void set_orders(const node::OrderByNode *orders) { orders_ = orders; } + const bool is_asc() const { const node::OrderExpression *first_order_expression = nullptr == orders_ ? nullptr : orders_->GetOrderExpression(0); @@ -172,18 +174,11 @@ class Sort : public FnComponent { return "sort = " + fn_info_.fn_name(); } - void ResolvedRelatedColumns( - std::vector *columns) const { + void ResolvedRelatedColumns(std::vector *columns) const { if (nullptr == orders_) { return; } - auto expr = orders_->GetOrderExpressionExpr(0); - if (nullptr != expr) { - node::ExprListNode exprs; - exprs.AddChild(const_cast(expr)); - node::ColumnOfExpression(orders_->order_expressions_, columns); - } - return; + node::ColumnOfExpression(orders_->order_expressions_, columns); } base::Status ReplaceExpr(const passes::ExprReplacer &replacer, @@ -286,8 +281,10 @@ class Key : public FnComponent { return oss.str(); } const bool ValidKey() const { return !node::ExprListNullOrEmpty(keys_); } + const node::ExprListNode *keys() const { return keys_; } void set_keys(const node::ExprListNode *keys) { keys_ = keys; } + const node::ExprListNode *PhysicalProjectNode() const { return keys_; } const std::string FnDetail() const { return "keys=" + fn_info_.fn_name(); } @@ -555,8 +552,7 @@ class PhysicalDataProviderNode : public PhysicalOpNode { class PhysicalTableProviderNode : public PhysicalDataProviderNode { public: - explicit PhysicalTableProviderNode( - const std::shared_ptr &table_handler) + explicit PhysicalTableProviderNode(const std::shared_ptr &table_handler) : PhysicalDataProviderNode(table_handler, kProviderTypeTable) {} base::Status WithNewChildren(node::NodeManager *nm, @@ -1287,7 +1283,7 @@ class PhysicalRequestJoinNode : public PhysicalBinaryNode { join_(join_type), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = kSchemaTypeRow; + output_type_ = left->GetOutputType(); RegisterFunctionInfo(); } PhysicalRequestJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, @@ -1298,7 +1294,7 @@ class PhysicalRequestJoinNode : public PhysicalBinaryNode { join_(join_type, orders, condition), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = kSchemaTypeRow; + output_type_ = left->GetOutputType(); RegisterFunctionInfo(); } PhysicalRequestJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, @@ -1307,7 +1303,7 @@ class PhysicalRequestJoinNode : public PhysicalBinaryNode { join_(join), joined_schemas_ctx_(this), output_right_only_(output_right_only) { - output_type_ = kSchemaTypeRow; + output_type_ = left->GetOutputType(); RegisterFunctionInfo(); } @@ -1321,7 +1317,7 @@ class PhysicalRequestJoinNode : public PhysicalBinaryNode { join_(join_type, condition, left_keys, right_keys), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = kSchemaTypeRow; + output_type_ = left->GetOutputType(); RegisterFunctionInfo(); } PhysicalRequestJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, @@ -1334,7 +1330,7 @@ class PhysicalRequestJoinNode : public PhysicalBinaryNode { join_(join_type, orders, condition, left_keys, right_keys), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = kSchemaTypeRow; + output_type_ = left->GetOutputType(); RegisterFunctionInfo(); } diff --git a/hybridse/include/vm/schemas_context.h b/hybridse/include/vm/schemas_context.h index 1541c64201d..b2e68d9477a 100644 --- a/hybridse/include/vm/schemas_context.h +++ b/hybridse/include/vm/schemas_context.h @@ -72,7 +72,8 @@ class SchemaSource { // column identifier of each output column std::vector column_ids_; - // trace which child and which column id each column come from + // trace which child and which column id each column comes from, index is measured + // based on the physical node tree, starts from 0. // -1 means the column is created from current node std::vector source_child_idxs_; std::vector source_child_column_ids_; @@ -127,10 +128,6 @@ class SchemasContext { base::Status ResolveColumnRefIndex(const node::ColumnRefNode* column_ref, size_t* schema_idx, size_t* col_idx) const; - /** - * Resolve column id with given column expression [ColumnRefNode, ColumnId] - */ - base::Status ResolveColumnID(const node::ExprNode* column, size_t* column_id) const; /** * Given relation name and column name, return column unique id diff --git a/hybridse/src/node/node_manager.cc b/hybridse/src/node/node_manager.cc index 3c5b8ffd36a..8f6f80d7517 100644 --- a/hybridse/src/node/node_manager.cc +++ b/hybridse/src/node/node_manager.cc @@ -301,7 +301,7 @@ OrderExpression *NodeManager::MakeOrderExpression(const ExprNode *expr, const bo OrderExpression *node_ptr = new OrderExpression(expr, is_asc); return RegisterNode(node_ptr); } -OrderByNode *NodeManager::MakeOrderByNode(const ExprListNode *order_expressions) { +OrderByNode *NodeManager::MakeOrderByNode(ExprListNode *order_expressions) { OrderByNode *node_ptr = new OrderByNode(order_expressions); return RegisterNode(node_ptr); } diff --git a/hybridse/src/passes/physical/cluster_optimized.cc b/hybridse/src/passes/physical/cluster_optimized.cc index d17928742dc..ae53f588930 100644 --- a/hybridse/src/passes/physical/cluster_optimized.cc +++ b/hybridse/src/passes/physical/cluster_optimized.cc @@ -41,7 +41,7 @@ bool ClusterOptimized::SimplifyJoinLeftInput( for (auto column : columns) { oss << node::ExprString(column) << ","; } - LOG(INFO) << "join resolved related columns: \n" << oss.str(); + LOG(INFO) << "join resolved related columns: " << oss.str(); // find columns belong to left side std::vector left_indices; @@ -116,7 +116,7 @@ bool ClusterOptimized::SimplifyJoinLeftInput( << status; return false; } - DLOG(INFO) << "apply root node simplify!"; + DLOG(INFO) << "apply root node simplify: " << root_simplify_project_op->GetTreeString(); *output = root_simplify_project_op; return true; } @@ -134,10 +134,13 @@ bool ClusterOptimized::Transform(PhysicalOpNode* in, PhysicalOpNode** output) { case node::kJoinTypeLast: { auto left = join_op->producers()[0]; auto right = join_op->producers()[1]; - if (vm::PhysicalSchemaType::kSchemaTypeRow == - right->GetOutputType()) { - DLOG(INFO) - << "request join optimized skip: row and row join"; + if (vm::PhysicalSchemaType::kSchemaTypeRow != left->GetOutputType()) { + DLOG(INFO) << "request join optimized skip: left source is not a row"; + return false; + } + + if (vm::PhysicalSchemaType::kSchemaTypeRow == right->GetOutputType()) { + DLOG(INFO) << "request join optimized skip: row and row join"; return false; } auto simplify_left = left; diff --git a/hybridse/src/passes/physical/group_and_sort_optimized.cc b/hybridse/src/passes/physical/group_and_sort_optimized.cc index 287919d9406..ae333b6af47 100644 --- a/hybridse/src/passes/physical/group_and_sort_optimized.cc +++ b/hybridse/src/passes/physical/group_and_sort_optimized.cc @@ -15,15 +15,15 @@ */ #include "passes/physical/group_and_sort_optimized.h" -#include #include #include -#include #include #include #include #include +#include "absl/cleanup/cleanup.h" +#include "absl/status/status.h" #include "absl/strings/string_view.h" #include "vm/physical_op.h" @@ -47,9 +47,47 @@ using hybridse::vm::PhysicalSimpleProjectNode; using hybridse::vm::PhysicalWindowAggrerationNode; using hybridse::vm::ProjectType; -static bool ResolveColumnToSourceColumnName(const node::ColumnRefNode* col, - const SchemasContext* schemas_ctx, - std::string* source_name); +static bool ResolveColumnToSourceColumnName(const node::ColumnRefNode* col, const SchemasContext* schemas_ctx, + std::string* db, std::string* table, std::string* source_col); + +// ExprNode may be resolving under different SchemasContext later (say one of its descendants context), +// with column name etc it may not able to resvole since a column rename may happen in SimpleProject node. +// With the column id hint written to corresponding ColumnRefNode earlier, resolving issue can be mitigated. +absl::Status GroupAndSortOptimized::BuildExprCache(const node::ExprNode* node, const SchemasContext* sc) { + if (node == nullptr) { + return {}; + } + + switch (node->GetExprType()) { + case node::kExprColumnRef: { + auto ref = dynamic_cast(node); + + if (expr_cache_.find(ref) != expr_cache_.end()) { + break; + } + + std::string source_col; + std::string source_db; + std::string source_table; + if (!ResolveColumnToSourceColumnName(ref, sc, &source_db, &source_table, &source_col)) { + return absl::InternalError(absl::StrCat("unable to resolve ", ref->GetExprString())); + } + + expr_cache_.emplace(ref, SrcColInfo{source_col, source_table, source_db}); + break; + } + default: + break; + } + + for (uint32_t i = 0; i < node->GetChildNum(); ++i) { + auto s = BuildExprCache(node->GetChild(i), sc); + if (!s.ok()) { + return s; + } + } + return {}; +} bool GroupAndSortOptimized::Transform(PhysicalOpNode* in, PhysicalOpNode** output) { @@ -239,6 +277,48 @@ bool GroupAndSortOptimized::Transform(PhysicalOpNode* in, return false; } +bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx, + PhysicalOpNode* in, + Key* left_key, + Key* index_key, + Key* right_key, + Sort* sort, + PhysicalOpNode** new_in) { + if (nullptr == left_key || nullptr == index_key || !left_key->ValidKey()) { + return false; + } + + if (right_key != nullptr && !right_key->ValidKey()) { + return false; + } + + absl::Cleanup clean = [&]() { + expr_cache_.clear(); + }; + + auto s = BuildExprCache(left_key->keys(), root_schemas_ctx); + if (!s.ok()) { + return false; + } + s = BuildExprCache(index_key->keys(), root_schemas_ctx); + if (!s.ok()) { + return false; + } + if (right_key != nullptr) { + s = BuildExprCache(right_key->keys(), root_schemas_ctx); + if (!s.ok()) { + return false; + } + } + if (sort != nullptr) { + s = BuildExprCache(sort->orders(), root_schemas_ctx); + if (!s.ok()) { + return false; + } + } + return KeysOptimizedImpl(root_schemas_ctx, in, left_key, index_key, right_key, sort, new_in); +} + /** * optimize keys on condition. Remove keys from upper node if key match indexes * defined in table schema `left_key` & `index_key` is required, `right_key` is @@ -249,7 +329,7 @@ bool GroupAndSortOptimized::Transform(PhysicalOpNode* in, * otherwise: * - `left_key`, `index_key` corresponding to Key group & Key hash */ -bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx, +bool GroupAndSortOptimized::KeysOptimizedImpl(const SchemasContext* root_schemas_ctx, PhysicalOpNode* in, Key* left_key, Key* index_key, @@ -258,15 +338,6 @@ bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx PhysicalOpNode** new_in) { TransformCxtGuard guard(&ctx_, KeysInfo(in->GetOpType(), left_key, right_key, index_key, sort)); - if (nullptr == left_key || nullptr == index_key || !left_key->ValidKey()) { - return false; - } - - if (right_key != nullptr && !right_key->ValidKey()) { - return false; - } - - if (PhysicalOpType::kPhysicalOpDataProvider == in->GetOpType()) { auto scan_op = dynamic_cast(in); // Do not optimize with Request DataProvider (no index has been provided) @@ -386,12 +457,13 @@ bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx return true; } } else if (PhysicalOpType::kPhysicalOpSimpleProject == in->GetOpType()) { - auto simple_project = dynamic_cast(in); PhysicalOpNode* new_depend; - if (!KeysOptimized(root_schemas_ctx, simple_project->producers()[0], - left_key, index_key, right_key, sort, &new_depend)) { + if (!KeysOptimizedImpl(in->GetProducer(0)->schemas_ctx(), in->GetProducer(0), left_key, index_key, right_key, sort, + &new_depend)) { return false; } + + auto simple_project = dynamic_cast(in); PhysicalSimpleProjectNode* new_simple_op = nullptr; Status status = plan_ctx_->CreateOp(&new_simple_op, new_depend, simple_project->project()); @@ -403,7 +475,7 @@ bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx return true; } else if (PhysicalOpType::kPhysicalOpRename == in->GetOpType()) { PhysicalOpNode* new_depend; - if (!KeysOptimized(root_schemas_ctx, in->producers()[0], left_key, + if (!KeysOptimizedImpl(in->GetProducer(0)->schemas_ctx(), in->producers()[0], left_key, index_key, right_key, sort, &new_depend)) { return false; } @@ -421,7 +493,7 @@ bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx PhysicalFilterNode* filter_op = dynamic_cast(in); PhysicalOpNode* new_depend; - if (!KeysOptimized(root_schemas_ctx, in->producers()[0], left_key, index_key, right_key, sort, &new_depend)) { + if (!KeysOptimizedImpl(root_schemas_ctx, in->producers()[0], left_key, index_key, right_key, sort, &new_depend)) { return false; } PhysicalFilterNode* new_filter = nullptr; @@ -438,19 +510,39 @@ bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx // try optimze left source of request join with window definition // window partition by and order by columns must refer to the left most table only PhysicalOpNode* new_depend = nullptr; - if (!KeysOptimized(request_join->GetProducer(0)->schemas_ctx(), request_join->GetProducer(0), left_key, - index_key, right_key, sort, &new_depend)) { + auto* rebase_sc = in->GetProducer(0)->schemas_ctx(); + if (!KeysOptimizedImpl(rebase_sc, in->GetProducer(0), left_key, index_key, right_key, sort, + &new_depend)) { return false; } PhysicalRequestJoinNode* new_join = nullptr; auto s = plan_ctx_->CreateOp(&new_join, new_depend, request_join->GetProducer(1), - request_join->join(), - request_join->output_right_only()); + request_join->join(), request_join->output_right_only()); if (!s.isOK()) { LOG(WARNING) << "Fail to create new request join op: " << s; return false; } + *new_in = new_join; + return true; + } else if (PhysicalOpType::kPhysicalOpJoin == in->GetOpType()) { + auto* join = dynamic_cast(in); + // try optimze left source of request join with window definition + // window partition by and order by columns must refer to the left most table only + PhysicalOpNode* new_depend = nullptr; + auto* rebase_sc = in->GetProducer(0)->schemas_ctx(); + if (!KeysOptimizedImpl(rebase_sc, in->GetProducer(0), left_key, index_key, right_key, sort, + &new_depend)) { + return false; + } + PhysicalJoinNode* new_join = nullptr; + auto s = plan_ctx_->CreateOp(&new_join, new_depend, join->GetProducer(1), + join->join(), join->output_right_only()); + if (!s.isOK()) { + LOG(WARNING) << "Fail to create new join op: " << s; + return false; + } + *new_in = new_join; return true; } @@ -522,39 +614,6 @@ bool GroupAndSortOptimized::KeyAndOrderOptimized( sort, new_in); } -bool GroupAndSortOptimized::SortOptimized( - const SchemasContext* root_schemas_ctx, PhysicalOpNode* in, Sort* sort) { - if (nullptr == sort) { - return false; - } - if (PhysicalOpType::kPhysicalOpDataProvider == in->GetOpType()) { - auto scan_op = dynamic_cast(in); - if (DataProviderType::kProviderTypePartition != - scan_op->provider_type_) { - return false; - } - auto partition_provider = - dynamic_cast(scan_op); - const node::OrderByNode* new_orders = nullptr; - - auto& index_hint = partition_provider->table_handler_->GetIndex(); - std::string index_name = partition_provider->index_name_; - auto index_st = index_hint.at(index_name); - TransformOrderExpr(root_schemas_ctx, sort->orders(), - *(scan_op->table_handler_->GetSchema()), index_st, - &new_orders); - sort->set_orders(new_orders); - return true; - } else if (PhysicalOpType::kPhysicalOpSimpleProject == in->GetOpType()) { - auto simple_project = dynamic_cast(in); - return SortOptimized(root_schemas_ctx, simple_project->producers()[0], - sort); - } else if (PhysicalOpType::kPhysicalOpRename == in->GetOpType()) { - return SortOptimized(root_schemas_ctx, in->producers()[0], sort); - } - return false; -} - bool GroupAndSortOptimized::TransformKeysAndOrderExpr(const SchemasContext* root_schemas_ctx, const node::ExprListNode* groups, const node::OrderByNode* order, @@ -582,13 +641,18 @@ bool GroupAndSortOptimized::TransformKeysAndOrderExpr(const SchemasContext* root switch (group->expr_type_) { case node::kExprColumnRef: { auto column = dynamic_cast(group); - std::string source_column_name; - if (!ResolveColumnToSourceColumnName(column, root_schemas_ctx, &source_column_name)) { + auto op = expr_cache_.find(column); + if (op == expr_cache_.end()) { + return false; + } + + if (table_handler->GetName() != op->second.tb_name || + table_handler->GetDatabase() != op->second.db_name) { return false; } result_bitmap_mapping[columns.size()] = i; - columns.push_back(source_column_name); + columns.emplace_back(op->second.col_name); break; } default: { @@ -602,11 +666,17 @@ bool GroupAndSortOptimized::TransformKeysAndOrderExpr(const SchemasContext* root auto expr = order->GetOrderExpressionExpr(i); if (nullptr != expr && expr->GetExprType() == node::kExprColumnRef) { auto column = dynamic_cast(expr); - std::string source_column_name; - if (!ResolveColumnToSourceColumnName(column, root_schemas_ctx, &source_column_name)) { + auto op = expr_cache_.find(column); + if (op == expr_cache_.end()) { return false; } - order_columns.push_back(source_column_name); + + if (table_handler->GetName() != op->second.tb_name || + table_handler->GetDatabase() != op->second.db_name) { + return false; + } + + order_columns.emplace_back(op->second.col_name); } } } @@ -754,75 +824,21 @@ bool GroupAndSortOptimized::MatchBestIndex(const std::vector& colum return succ; } -bool GroupAndSortOptimized::TransformOrderExpr( - const SchemasContext* schemas_ctx, const node::OrderByNode* order, - const Schema& schema, const IndexSt& index_st, - const node::OrderByNode** output) { - *output = order; - if (nullptr == order || nullptr == output) { - DLOG(WARNING) - << "fail to optimize order expr : order expr or output is null"; - return false; - } - if (index_st.ts_pos == INVALID_POS) { - DLOG(WARNING) << "not set ts col"; - return false; - } - auto& ts_column = schema.Get(index_st.ts_pos); - *output = order; - int succ_match = -1; - for (size_t i = 0; i < order->order_expressions()->GetChildNum(); ++i) { - auto expr = order->GetOrderExpressionExpr(i); - if (nullptr != expr && expr->GetExprType() == node::kExprColumnRef) { - auto column = dynamic_cast(expr); - std::string source_column_name; - if (ResolveColumnToSourceColumnName(column, schemas_ctx, - &source_column_name)) { - if (ts_column.name() == source_column_name) { - succ_match = i; - break; - } - } - } - } - if (succ_match >= 0) { - node::ExprListNode* expr_list = node_manager_->MakeExprList(); - for (size_t i = 0; i < order->order_expressions()->GetChildNum(); ++i) { - if (static_cast(succ_match) != i) { - expr_list->AddChild(order->order_expressions()->GetChild(i)); - } - } - *output = dynamic_cast( - node_manager_->MakeOrderByNode(expr_list)); - return true; - } else { - return false; - } -} - /** * Resolve column reference to possible source table's column name */ -static bool ResolveColumnToSourceColumnName(const node::ColumnRefNode* col, - const SchemasContext* schemas_ctx, - std::string* source_name) { - // use detailed column resolve utility +static bool ResolveColumnToSourceColumnName(const node::ColumnRefNode* col, const SchemasContext* schemas_ctx, + std::string* src_db, std::string* src_table, std::string* src_col) { + auto db = col->GetDBName(); + auto rel = col->GetRelationName(); + auto col_name = col->GetColumnName(); size_t column_id; int path_idx; size_t child_column_id; size_t source_column_id; const PhysicalOpNode* source; - Status status = schemas_ctx->ResolveColumnID(col->GetDBName(), - col->GetRelationName(), col->GetColumnName(), &column_id, &path_idx, - &child_column_id, &source_column_id, &source); - - // try loose the relation - if (!status.isOK() && !col->GetRelationName().empty()) { - status = schemas_ctx->ResolveColumnID( - col->GetDBName(), col->GetRelationName(), col->GetColumnName(), - &column_id, &path_idx, &child_column_id, - &source_column_id, &source); - } + Status status = schemas_ctx->ResolveColumnID(db, rel, col_name, &column_id, &path_idx, &child_column_id, + &source_column_id, &source); if (!status.isOK()) { LOG(WARNING) << "Illegal index column: " << col->GetExprString(); @@ -834,13 +850,17 @@ static bool ResolveColumnToSourceColumnName(const node::ColumnRefNode* col, << col->GetExprString(); return false; } - status = source->schemas_ctx()->ResolveColumnNameByID(source_column_id, - source_name); + + std::string sc_db, sc_table, sc_column; + status = source->schemas_ctx()->ResolveDbTableColumnByID(source_column_id, &sc_db, &sc_table, &sc_column); if (!status.isOK()) { - LOG(WARNING) << "Illegal source column id #" << source_column_id - << " for index column " << col->GetExprString(); + LOG(WARNING) << "Illegal source column id #" << source_column_id << " for index column " + << col->GetExprString(); return false; } + *src_db = sc_db; + *src_table = sc_table; + *src_col = sc_column; return true; } diff --git a/hybridse/src/passes/physical/group_and_sort_optimized.h b/hybridse/src/passes/physical/group_and_sort_optimized.h index 612b9cdaa67..1d410f2b8e8 100644 --- a/hybridse/src/passes/physical/group_and_sort_optimized.h +++ b/hybridse/src/passes/physical/group_and_sort_optimized.h @@ -16,12 +16,13 @@ #ifndef HYBRIDSE_SRC_PASSES_PHYSICAL_GROUP_AND_SORT_OPTIMIZED_H_ #define HYBRIDSE_SRC_PASSES_PHYSICAL_GROUP_AND_SORT_OPTIMIZED_H_ +#include #include #include #include -#include -#include +#include #include +#include #include "passes/physical/transform_up_physical_pass.h" @@ -85,12 +86,22 @@ class GroupAndSortOptimized : public TransformUpPysicalPass { Container* c_; }; + // info to a physical table + struct SrcColInfo { + std::string col_name; + std::string tb_name; + std::string db_name; + }; + private: bool Transform(PhysicalOpNode* in, PhysicalOpNode** output); bool KeysOptimized(const SchemasContext* root_schemas_ctx, PhysicalOpNode* in, Key* left_key, Key* index_key, Key* right_key, Sort* sort, PhysicalOpNode** new_in); + bool KeysOptimizedImpl(const SchemasContext* root_schemas_ctx, PhysicalOpNode* in, Key* left_key, Key* index_key, + Key* right_key, Sort* sort, PhysicalOpNode** new_in); + bool FilterAndOrderOptimized(const SchemasContext* root_schemas_ctx, PhysicalOpNode* in, Filter* filter, Sort* sort, PhysicalOpNode** new_in); @@ -115,12 +126,7 @@ class GroupAndSortOptimized : public TransformUpPysicalPass { bool GroupOptimized(const SchemasContext* root_schemas_ctx, PhysicalOpNode* in, Key* group, PhysicalOpNode** new_in); - bool SortOptimized(const SchemasContext* root_schemas_ctx, - PhysicalOpNode* in, Sort* sort); - bool TransformOrderExpr(const SchemasContext* schemas_ctx, - const node::OrderByNode* order, - const Schema& schema, const IndexSt& index_st, - const node::OrderByNode** output); + bool TransformKeysAndOrderExpr(const SchemasContext* schemas_ctx, const node::ExprListNode* groups, const node::OrderByNode* order, @@ -134,8 +140,15 @@ class GroupAndSortOptimized : public TransformUpPysicalPass { std::string* index_name, IndexBitMap* best_bitmap); + absl::Status BuildExprCache(const node::ExprNode* node, const SchemasContext* sc); + private: std::list ctx_; + + // Map ExprNode to source column name + // A source column name is the column name in string that refers to a physical table, + // only one table got optimized each time + std::unordered_map expr_cache_; }; } // namespace passes } // namespace hybridse diff --git a/hybridse/src/vm/engine.cc b/hybridse/src/vm/engine.cc index 6fd0f14a904..4fdc368887e 100644 --- a/hybridse/src/vm/engine.cc +++ b/hybridse/src/vm/engine.cc @@ -94,27 +94,10 @@ bool Engine::GetDependentTables(const std::string& sql, const std::string& db, return false; } - status = GetDependentTables(physical_plan, db_tables); + status = internal::GetDependentTables(physical_plan, db_tables); return status.isOK(); } -Status Engine::GetDependentTables(const PhysicalOpNode* root, std::set>* db_tbs) { - using OUT = std::set>; - *db_tbs = internal::ReduceNode( - root, OUT{}, - [](OUT init, const PhysicalOpNode* node) { - if (node->GetOpType() == kPhysicalOpDataProvider) { - auto* data_op = dynamic_cast(node); - if (data_op != nullptr) { - init.emplace(data_op->GetDb(), data_op->GetName()); - } - } - return init; - }, - [](const PhysicalOpNode* node) { return node->GetDependents(); }); - return Status::OK(); -} - bool Engine::IsCompatibleCache(RunSession& session, // NOLINT std::shared_ptr info, base::Status& status) { // NOLINT @@ -271,7 +254,7 @@ bool Engine::Explain(const std::string& sql, const std::string& db, EngineMode e explain_output->request_db_name = ctx.request_db_name; explain_output->limit_cnt = ctx.limit_cnt; - auto s = GetDependentTables(ctx.physical_plan, &explain_output->dependent_tables); + auto s = internal::GetDependentTables(ctx.physical_plan, &explain_output->dependent_tables); if (!s.isOK()) { LOG(ERROR) << s; status->code = common::kPhysicalPlanError; diff --git a/hybridse/src/vm/generator.cc b/hybridse/src/vm/generator.cc index 2b437ca2602..28542a7befb 100644 --- a/hybridse/src/vm/generator.cc +++ b/hybridse/src/vm/generator.cc @@ -726,5 +726,9 @@ std::shared_ptr FilterGenerator::Filter(std::shared_ptr(table, limit.value()); } +bool FilterGenerator::ValidIndex() const { + return index_seek_gen_.Valid(); +} + } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/generator.h b/hybridse/src/vm/generator.h index 51bc6b1e674..4dded0d6ebf 100644 --- a/hybridse/src/vm/generator.h +++ b/hybridse/src/vm/generator.h @@ -230,6 +230,9 @@ class FilterGenerator : public PredicateFun { const bool Valid() const { return index_seek_gen_.Valid() || condition_gen_.Valid(); } + // return if index seek exists + bool ValidIndex() const; + std::shared_ptr Filter(std::shared_ptr table, const Row& parameter, std::optional limit); diff --git a/hybridse/src/vm/internal/node_helper.cc b/hybridse/src/vm/internal/node_helper.cc new file mode 100644 index 00000000000..9d97c14374a --- /dev/null +++ b/hybridse/src/vm/internal/node_helper.cc @@ -0,0 +1,42 @@ +/** + * Copyright (c) 2023 OpenMLDB authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "vm/internal/node_helper.h" + +namespace hybridse { +namespace vm { +namespace internal { + +Status GetDependentTables(const PhysicalOpNode* root, std::set>* db_tbs) { + using OUT = std::set>; + *db_tbs = internal::ReduceNode( + root, OUT{}, + [](OUT init, const PhysicalOpNode* node) { + if (node->GetOpType() == kPhysicalOpDataProvider) { + auto* data_op = dynamic_cast(node); + if (data_op != nullptr) { + init.emplace(data_op->GetDb(), data_op->GetName()); + } + } + return init; + }, + [](const PhysicalOpNode* node) { return node->GetDependents(); }); + return Status::OK(); +} + +} // namespace internal +} // namespace vm +} // namespace hybridse diff --git a/hybridse/src/vm/internal/node_helper.h b/hybridse/src/vm/internal/node_helper.h index 89b47ea4e0f..7b9d5044748 100644 --- a/hybridse/src/vm/internal/node_helper.h +++ b/hybridse/src/vm/internal/node_helper.h @@ -18,6 +18,8 @@ #ifndef HYBRIDSE_SRC_VM_INTERNAL_NODE_HELPER_H_ #define HYBRIDSE_SRC_VM_INTERNAL_NODE_HELPER_H_ +#include +#include #include #include @@ -63,6 +65,9 @@ State ReduceNode(const PhysicalOpNode* root, State state, BinOp&& op, GetKids&& return state; } +// Get all dependent (db, table) info from physical plan +Status GetDependentTables(const PhysicalOpNode*, std::set>*); + } // namespace internal } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/runner.cc b/hybridse/src/vm/runner.cc index 2072715c613..be954653b91 100644 --- a/hybridse/src/vm/runner.cc +++ b/hybridse/src/vm/runner.cc @@ -25,7 +25,6 @@ #include "absl/strings/str_cat.h" #include "absl/strings/substitute.h" #include "base/texttable.h" -#include "udf/udf.h" #include "vm/catalog_wrapper.h" #include "vm/core_api.h" #include "vm/internal/eval.h" @@ -139,10 +138,9 @@ ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { } } case kPhysicalOpSimpleProject: { - auto cluster_task = // NOLINT - Build(node->producers().at(0), status); + auto cluster_task = Build(node->producers().at(0), status); if (!cluster_task.IsValid()) { - status.msg = "fail to build input runner"; + status.msg = "fail to build input runner for simple project:\n" + node->GetTreeString(); status.code = common::kExecutionPlanError; LOG(WARNING) << status; return fail; @@ -338,19 +336,17 @@ ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { return BuildRequestAggUnionTask(node, status); } case kPhysicalOpRequestJoin: { - auto left_task = // NOLINT - Build(node->producers().at(0), status); + auto left_task = Build(node->GetProducer(0), status); if (!left_task.IsValid()) { - status.msg = "fail to build left input runner"; + status.msg = "fail to build left input runner for: " + node->GetProducer(0)->GetTreeString(); status.code = common::kExecutionPlanError; LOG(WARNING) << status; return fail; } auto left = left_task.GetRoot(); - auto right_task = // NOLINT - Build(node->producers().at(1), status); + auto right_task = Build(node->GetProducer(1), status); if (!right_task.IsValid()) { - status.msg = "fail to build right input runner"; + status.msg = "fail to build right input runner for: " + node->GetProducer(1)->GetTreeString(); status.code = common::kExecutionPlanError; LOG(WARNING) << status; return fail; @@ -364,19 +360,38 @@ ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { left->output_schemas()->GetSchemaSourceSize(), right->output_schemas()->GetSchemaSourceSize(), op->output_right_only()); - if (support_cluster_optimized_ && IsPartitionProvider(node->GetProducer(0))) { - // Partion left join partition, route by index of the left source, and it should uncompleted - auto& route_info = left_task.GetRouteInfo(); - runner->AddProducer(left_task.GetRoot()); - runner->AddProducer(right_task.GetRoot()); - return UnCompletedClusterTask(runner, route_info.table_handler_, route_info.index_); - } else { - return RegisterTask( - node, BinaryInherit(left_task, right_task, runner, op->join().index_key(), kLeftBias)); + if (support_cluster_optimized_) { + if (IsPartitionProvider(node->GetProducer(0))) { + // Partion left join partition, route by index of the left source, and it should uncompleted + auto& route_info = left_task.GetRouteInfo(); + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask( + node, UnCompletedClusterTask(runner, route_info.table_handler_, route_info.index_)); + } + + if (right_task.IsCompletedClusterTask() && right_task.GetRouteInfo().lazy_route_ && + !op->join_.index_key_.ValidKey()) { + auto& route_info = right_task.GetRouteInfo(); + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, ClusterTask(runner, {}, route_info)); + } } + + return RegisterTask( + node, BinaryInherit(left_task, right_task, runner, op->join().index_key(), kLeftBias)); } case node::kJoinTypeConcat: { ConcatRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt()); + if (support_cluster_optimized_) { + if (right_task.IsCompletedClusterTask() && right_task.GetRouteInfo().lazy_route_ && + !op->join_.index_key_.ValidKey()) { + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, ClusterTask(runner, {}, RouteInfo{})); + } + } return RegisterTask(node, BinaryInherit(left_task, right_task, runner, Key(), kNoBias)); } default: { @@ -464,9 +479,8 @@ ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); } case kPhysicalOpFilter: { - auto cluster_task = // NOLINT - Build(node->producers().at(0), status); - if (!cluster_task.IsValid()) { + auto producer_task = Build(node->GetProducer(0), status); + if (!producer_task.IsValid()) { status.msg = "fail to build input runner"; status.code = common::kExecutionPlanError; LOG(WARNING) << status; @@ -475,7 +489,27 @@ ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { auto op = dynamic_cast(node); FilterRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->filter_); - return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + // under cluster, filter task might be completed or uncompleted + // based on whether filter node has the index_key underlaying DataTask requires + ClusterTask out; + if (support_cluster_optimized_) { + auto& route_info_ref = producer_task.GetRouteInfo(); + if (runner->filter_gen_.ValidIndex()) { + // complete the route info + RouteInfo lazy_route_info(route_info_ref.index_, op->filter().index_key(), + std::make_shared(producer_task), + route_info_ref.table_handler_); + lazy_route_info.lazy_route_ = true; + runner->AddProducer(producer_task.GetRoot()); + out = ClusterTask(runner, {}, lazy_route_info); + } else { + runner->AddProducer(producer_task.GetRoot()); + out = UnCompletedClusterTask(runner, route_info_ref.table_handler_, route_info_ref.index_); + } + } else { + out = UnaryInheritTask(producer_task, runner); + } + return RegisterTask(node, out); } case kPhysicalOpLimit: { auto cluster_task = // NOLINT @@ -709,8 +743,7 @@ ClusterTask RunnerBuilder::BuildClusterTaskForBinaryRunner( new_right.IsCompletedClusterTask()) { // merge left and right task if tasks can be merged if (ClusterTask::TaskCanBeMerge(new_left, new_right)) { - ClusterTask task = - ClusterTask::TaskMerge(runner, new_left, new_right); + ClusterTask task = ClusterTask::TaskMerge(runner, new_left, new_right); runner->AddProducer(new_left.GetRoot()); runner->AddProducer(new_right.GetRoot()); return task; @@ -735,10 +768,12 @@ ClusterTask RunnerBuilder::BuildClusterTaskForBinaryRunner( } } } - if (new_left.IsUnCompletedClusterTask() || - new_right.IsUnCompletedClusterTask()) { - LOG(WARNING) << "Fail to build cluster task, can't handler " - "uncompleted cluster task"; + if (new_left.IsUnCompletedClusterTask()) { + LOG(WARNING) << "can't handler uncompleted cluster task from left:" << new_left; + return ClusterTask(); + } + if (new_right.IsUnCompletedClusterTask()) { + LOG(WARNING) << "can't handler uncompleted cluster task from right:" << new_right; return ClusterTask(); } diff --git a/hybridse/src/vm/runner.h b/hybridse/src/vm/runner.h index 25857dbdd0f..64e712bbde7 100644 --- a/hybridse/src/vm/runner.h +++ b/hybridse/src/vm/runner.h @@ -857,8 +857,7 @@ class ProxyRequestRunner : public Runner { const std::vector>& inputs) override; std::shared_ptr BatchRequestRun( RunnerContext& ctx) override; // NOLINT - virtual void PrintRunnerInfo(std::ostream& output, - const std::string& tab) const { + void PrintRunnerInfo(std::ostream& output, const std::string& tab) const override { output << tab << "[" << id_ << "]" << RunnerTypeName(type_) << "(TASK_ID=" << task_id_ << ")"; if (is_lazy_) { @@ -947,6 +946,9 @@ class RouteInfo { const std::string ToString() const { if (IsCompleted()) { std::ostringstream oss; + if (lazy_route_) { + oss << "[LAZY]"; + } oss << ", routing index = " << table_handler_->GetDatabase() << "." << table_handler_->GetName() << "." << index_ << ", " << index_key_.ToString(); @@ -960,6 +962,9 @@ class RouteInfo { Runner* index_key_input_runner_; std::shared_ptr input_; std::shared_ptr table_handler_; + + // if true: generate the complete ClusterTask only when requires + bool lazy_route_ = false; }; // task info of cluster job @@ -968,9 +973,12 @@ class RouteInfo { // request generator class ClusterTask { public: + // common tasks ClusterTask() : root_(nullptr), input_runners_(), route_info_() {} explicit ClusterTask(Runner* root) : root_(root), input_runners_(), route_info_() {} + + // cluster task with explicit routeinfo ClusterTask(Runner* root, const std::shared_ptr table_handler, std::string index) : root_(root), input_runners_(), route_info_(index, table_handler) {} @@ -978,6 +986,7 @@ class ClusterTask { const RouteInfo& route_info) : root_(root), input_runners_(input_runners), route_info_(route_info) {} ~ClusterTask() {} + void Print(std::ostream& output, const std::string& tab) const { output << route_info_.ToString() << "\n"; if (nullptr == root_) { @@ -988,6 +997,11 @@ class ClusterTask { } } + friend std::ostream& operator<<(std::ostream& os, const ClusterTask& output) { + output.Print(os, ""); + return os; + } + void ResetInputs(std::shared_ptr input) { for (auto input_runner : input_runners_) { input_runner->SetProducer(0, route_info_.input_->GetRoot()); @@ -1180,8 +1194,7 @@ class RunnerBuilder { Status& status) { // NOLINT id_ = 0; cluster_job_.Reset(); - auto task = // NOLINT whitespace/braces - Build(node, status); + auto task = Build(node, status); if (!status.isOK()) { return cluster_job_; } @@ -1215,6 +1228,7 @@ class RunnerBuilder { private: node::NodeManager* nm_; + // only set for request mode bool support_cluster_optimized_; int32_t id_; ClusterJob cluster_job_; diff --git a/hybridse/src/vm/schemas_context.cc b/hybridse/src/vm/schemas_context.cc index 214da20caa5..7d794bc8f92 100644 --- a/hybridse/src/vm/schemas_context.cc +++ b/hybridse/src/vm/schemas_context.cc @@ -382,40 +382,20 @@ Status DoSearchExprDependentColumns(const node::ExprNode* expr, std::vectorpush_back(expr); break; } - case node::kExprBetween: { - std::vector expr_list; - auto between_expr = dynamic_cast(expr); - CHECK_STATUS(DoSearchExprDependentColumns(between_expr->GetLow(), - columns)); - CHECK_STATUS(DoSearchExprDependentColumns(between_expr->GetHigh(), - columns)); - CHECK_STATUS(DoSearchExprDependentColumns(between_expr->GetLhs(), - columns)); - break; - } case node::kExprCall: { auto call_expr = dynamic_cast(expr); if (nullptr != call_expr->GetOver()) { auto orders = call_expr->GetOver()->GetOrders(); if (nullptr != orders) { - CHECK_STATUS( - DoSearchExprDependentColumns(orders, columns)); + CHECK_STATUS(DoSearchExprDependentColumns(orders, columns)); } auto partitions = call_expr->GetOver()->GetPartitions(); if (nullptr != partitions) { - CHECK_STATUS( - DoSearchExprDependentColumns(partitions, columns)); + CHECK_STATUS(DoSearchExprDependentColumns(partitions, columns)); } } break; } - case node::kExprOrderExpression: { - auto refx = dynamic_cast(expr); - CHECK_TRUE(refx != nullptr, common::kTypeError); - CHECK_STATUS(DoSearchExprDependentColumns(refx->expr(), columns)); - - break; - } default: break; } diff --git a/hybridse/src/vm/transform.cc b/hybridse/src/vm/transform.cc index 60549447e42..8020c99741f 100644 --- a/hybridse/src/vm/transform.cc +++ b/hybridse/src/vm/transform.cc @@ -21,6 +21,7 @@ #include #include "absl/cleanup/cleanup.h" +#include "base/fe_status.h" #include "codegen/context.h" #include "codegen/fn_ir_builder.h" #include "codegen/fn_let_ir_builder.h" @@ -38,6 +39,7 @@ #include "passes/physical/transform_up_physical_pass.h" #include "passes/physical/window_column_pruning.h" #include "plan/planner.h" +#include "proto/fe_common.pb.h" #include "vm/physical_op.h" #include "vm/schemas_context.h" #include "vm/internal/node_helper.h" @@ -822,6 +824,7 @@ Status RequestModeTransformer::OptimizeSimpleProjectAsWindowProducer(PhysicalSim return Status::OK(); } +// From window (t1 last join t2 [ last join t3]...) // Optimize // RequestJoin(Request(left_table), DataSource(right_table)) // -> @@ -905,7 +908,8 @@ Status FixupWindowOverSimpleNLastJoin(const node::WindowPlanNode* w_ptr, const S size_t id = 0; CHECK_STATUS(window_depend_sc->ResolveColumnID(ref->GetDBName(), ref->GetRelationName(), - ref->GetColumnName(), &id)); + ref->GetColumnName(), &id), + "fail to resolve ", ref->GetExprString()); std::string name; CHECK_STATUS( left_join_sc->ResolveColumnNameByID(id, &name), @@ -930,7 +934,8 @@ Status FixupWindowOverSimpleNLastJoin(const node::WindowPlanNode* w_ptr, const S size_t id = 0; CHECK_STATUS(window_depend_sc->ResolveColumnID(ref->GetDBName(), ref->GetRelationName(), - ref->GetColumnName(), &id)); + ref->GetColumnName(), &id), + "fail to resolve ", ref->GetExprString()); std::string name; CHECK_STATUS(left_join_sc->ResolveColumnNameByID(id, &name), "Fail to handle window: window order expression should belong to left table of join"); @@ -1603,28 +1608,12 @@ bool BatchModeTransformer::isSourceFromTableOrPartition(PhysicalOpNode* in) { kPhysicalOpFilter == in->GetOpType()) { return isSourceFromTableOrPartition(in->GetProducer(0)); } else if (kPhysicalOpDataProvider == in->GetOpType()) { - return kProviderTypePartition == - dynamic_cast(in) - ->provider_type_ || - kProviderTypeTable == - dynamic_cast(in)->provider_type_; - } - return false; -} -bool BatchModeTransformer::isSourceFromTable(PhysicalOpNode* in) { - if (nullptr == in) { - DLOG(WARNING) << "Invalid physical node: null"; - return false; - } - if (kPhysicalOpSimpleProject == in->GetOpType() || - kPhysicalOpRename == in->GetOpType()) { - return isSourceFromTableOrPartition(in->GetProducer(0)); - } else if (kPhysicalOpDataProvider == in->GetOpType()) { - return kProviderTypeTable == - dynamic_cast(in)->provider_type_; + return kProviderTypePartition == dynamic_cast(in)->provider_type_ || + kProviderTypeTable == dynamic_cast(in)->provider_type_; } return false; } + Status BatchModeTransformer::ValidateTableProvider(PhysicalOpNode* in) { CHECK_TRUE(nullptr != in, kPlanError, "Invalid physical node: null"); CHECK_TRUE(isSourceFromTableOrPartition(in), kPlanError, @@ -1654,11 +1643,9 @@ Status BatchModeTransformer::ValidatePartitionDataProvider(PhysicalOpNode* in) { CHECK_STATUS(ValidatePartitionDataProvider(in->GetProducer(0))); CHECK_STATUS(ValidatePartitionDataProvider(in->GetProducer(1))); } else { - CHECK_TRUE( - kPhysicalOpDataProvider == in->GetOpType() && - kProviderTypePartition == - dynamic_cast(in)->provider_type_, - kPlanError, "Isn't partition provider:", in->GetTreeString()); + CHECK_TRUE(kPhysicalOpDataProvider == in->GetOpType() && + kProviderTypePartition == dynamic_cast(in)->provider_type_, + kPlanError, "Isn't partition provider:", in->GetTreeString()); } return Status::OK(); } @@ -1795,10 +1782,9 @@ Status BatchModeTransformer::ValidatePlanSupported(const PhysicalOpNode* in) { // - ValidateNotAggregationOverTable Status RequestModeTransformer::ValidatePlan(PhysicalOpNode* node) { CHECK_STATUS(BatchModeTransformer::ValidatePlan(node)) - PhysicalOpNode* primary_source = nullptr; // OnlineServing restriction: Expect to infer one and only one request table from given SQL - CHECK_STATUS(ValidateRequestTable(node, &primary_source), "Fail to validate physical plan") + CHECK_STATUS(ValidateRequestTable(node), "Fail to validate physical plan") // For Online serving, SQL queries should be designed extremely performance-sensitive to satisfy the real-time // requirements. Thus, we need to Validate if the SQL has been optimized well enough @@ -2422,18 +2408,32 @@ Status RequestModeTransformer::TransformScanOp(const node::TablePlanNode* node, return BatchModeTransformer::TransformScanOp(node, output); } } -Status RequestModeTransformer::ValidateRequestTable( - PhysicalOpNode* in, PhysicalOpNode** request_table) { - CHECK_TRUE(in != NULL, kPlanError, "NULL Physical Node"); +Status RequestModeTransformer::ValidateRequestTable(PhysicalOpNode* in) { + auto req = ExtractRequestNode(in); + CHECK_TRUE(req.ok(), kPlanError, req.status()); + + std::set> db_tables; + CHECK_STATUS(internal::GetDependentTables(in, &db_tables)); + CHECK_TRUE(req.value() != nullptr || db_tables.empty(), kPlanError, "no request node found"); + + return Status::OK(); +} + +absl::StatusOr RequestModeTransformer::ExtractRequestNode(PhysicalOpNode* in) { + if (in == nullptr) { + return absl::InvalidArgumentError("null input node"); + } switch (in->GetOpType()) { case vm::kPhysicalOpDataProvider: { - CHECK_TRUE(kProviderTypeRequest == dynamic_cast(in)->provider_type_, kPlanError, - "Expect a request table but a ", - vm::DataProviderTypeName(dynamic_cast(in)->provider_type_), " ", - in->GetTreeString()) - *request_table = in; - return Status::OK(); + auto tp = dynamic_cast(in)->provider_type_; + if (tp == kProviderTypeRequest) { + return in; + } + + // else data provider is fine inside node tree, + // generally it is of type Partition, but can be Table as well e.g window (t1 instance_not_in_window) + return nullptr; } case vm::kPhysicalOpJoin: case vm::kPhysicalOpUnion: @@ -2441,45 +2441,46 @@ Status RequestModeTransformer::ValidateRequestTable( case vm::kPhysicalOpRequestUnion: case vm::kPhysicalOpRequestAggUnion: case vm::kPhysicalOpRequestJoin: { - vm::PhysicalOpNode* left_primary_source = nullptr; - CHECK_STATUS(ValidateRequestTable(in->GetProducer(0), &left_primary_source)) - CHECK_TRUE( - nullptr != left_primary_source, kPlanError, - "Fail to infer a request table") - // Case 1: - // binary_node - // + Left - PrimarySource - // + Right - TableProvider - if (isSourceFromTableOrPartition(in->GetProducer(1))) { - *request_table = left_primary_source; - return Status::OK(); + // Binary Node + // - left or right status not ok -> error + // - left and right both has non-null value + // - the two not equals -> error + // - otherwise -> left as request node + auto left = ExtractRequestNode(in->GetProducer(0)); + if (!left.ok()) { + return left; + } + auto right = ExtractRequestNode(in->GetProducer(1)); + if (!right.ok()) { + return right; } - vm::PhysicalOpNode* right_primary_source = nullptr; - CHECK_STATUS(ValidateRequestTable(in->GetProducer(1), &right_primary_source)) - CHECK_TRUE( - nullptr != right_primary_source, kPlanError, - "Fail to infer a request table") - // Case 2: - // binary_node - // + Left <-- SamePrimarySource1 - // + Right <-- SamePrimarySource1 - CHECK_TRUE(left_primary_source->Equals(right_primary_source), kPlanError, - "left path and right path has different request table") - *request_table = left_primary_source; - return Status::OK(); - } - case vm::kPhysicalOpConstProject: { - break; + if (left.value() != nullptr && right.value() != nullptr) { + if (!left.value()->Equals(right.value())) { + return absl::NotFoundError( + absl::StrCat("different request table from left and right path:\n", in->GetTreeString())); + } + } + + return left.value(); } default: { - CHECK_TRUE(in->GetProducerCnt() == 1, kPlanError, - "Non-support Op ", PhysicalOpTypeName(in->GetOpType())) - CHECK_STATUS(ValidateRequestTable(in->GetProducer(0), request_table)); - return Status::OK(); + break; } } - return Status::OK(); + + if (in->GetProducerCnt() == 0) { + // leaf node excepting DataProdiverNode + // consider ok as right source from one of the supported binary op + return nullptr; + } + + if (in->GetProducerCnt() > 1) { + return absl::UnimplementedError( + absl::StrCat("Non-support op with more than one producer:\n", in->GetTreeString())); + } + + return ExtractRequestNode(in->GetProducer(0)); } // transform a single `ProjectListNode` of `ProjectPlanNode` diff --git a/hybridse/src/vm/transform.h b/hybridse/src/vm/transform.h index 22a7b74c5b9..caaf63b655d 100644 --- a/hybridse/src/vm/transform.h +++ b/hybridse/src/vm/transform.h @@ -141,7 +141,6 @@ class BatchModeTransformer { Status GenRange(Range* sort, const SchemasContext* schemas_ctx); static bool isSourceFromTableOrPartition(PhysicalOpNode* in); - bool isSourceFromTable(PhysicalOpNode* in); std::string ExtractSchemaName(PhysicalOpNode* in); static Status ValidateIndexOptimization(PhysicalOpNode* physical_plan); @@ -319,7 +318,17 @@ class RequestModeTransformer : public BatchModeTransformer { absl::StatusOr ResolveCTERef(absl::string_view tb_name) override; - Status ValidateRequestTable(PhysicalOpNode* in, PhysicalOpNode** request_table); + // Valid the final optimized PhysicalOpNode is either: + // - has one and only one request table + // - do not has any physical table refered + Status ValidateRequestTable(PhysicalOpNode* in); + + // Extract request node of the node tree + // returns + // - Request node on success + // - NULL if tree do not has request table but sufficient as as input tree of the big one + // - Error status otherwise + static absl::StatusOr ExtractRequestNode(PhysicalOpNode* in); private: // Optimize simple project node which is the producer of window project From 88e9e79aa133860fe216c6b0f4eaa1570b35668a Mon Sep 17 00:00:00 2001 From: dl239 Date: Tue, 17 Oct 2023 10:32:24 +0800 Subject: [PATCH 072/111] feat: support show create table (#3500) --- cases/plan/cmd.yaml | 17 +++ .../sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md | 28 ++++ docs/en/reference/sql/ddl/index.rst | 1 + .../ddl/SHOW_CREATE_TABLE_STATEMENT.md | 28 ++++ docs/zh/openmldb_sql/ddl/index.rst | 1 + hybridse/include/node/node_enum.h | 1 + hybridse/src/node/sql_node.cc | 1 + hybridse/src/planv2/ast_node_converter.cc | 1 + src/sdk/CMakeLists.txt | 3 + src/sdk/sdk_util.cc | 96 +++++++++++++ src/sdk/sdk_util.h | 35 +++++ src/sdk/sdk_util_test.cc | 127 ++++++++++++++++++ src/sdk/sql_cluster_router.cc | 39 ++++-- src/sdk/sql_cluster_test.cc | 18 +++ third-party/cmake/FetchZetasql.cmake | 8 +- 15 files changed, 392 insertions(+), 12 deletions(-) create mode 100644 docs/en/reference/sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md create mode 100644 docs/zh/openmldb_sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md create mode 100644 src/sdk/sdk_util.cc create mode 100644 src/sdk/sdk_util.h create mode 100644 src/sdk/sdk_util_test.cc diff --git a/cases/plan/cmd.yaml b/cases/plan/cmd.yaml index 3ca7d89ba6f..50b5fa94343 100644 --- a/cases/plan/cmd.yaml +++ b/cases/plan/cmd.yaml @@ -704,3 +704,20 @@ cases: +-actions: +-0: DropPathAction (12) +-1: AddPathAction (13) + + - id: show-create-table + desc: SHOW CREATE TABLE + sql: SHOW CREATE TABLE t1; + expect: + node_tree_str: | + +-node[CMD] + +-cmd_type: show create table + +-args: [t1] + - id: show-create-table-db + desc: SHOW CREATE TABLE + sql: SHOW CREATE TABLE db1.t1; + expect: + node_tree_str: | + +-node[CMD] + +-cmd_type: show create table + +-args: [db1, t1] diff --git a/docs/en/reference/sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md b/docs/en/reference/sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md new file mode 100644 index 00000000000..dd411410e65 --- /dev/null +++ b/docs/en/reference/sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md @@ -0,0 +1,28 @@ +# SHOW CREATE TABLE + +`SHOW CREATE TABLE` shows the `CREATE TABLE` statement that creates the named table + +**Syntax** + +```sql +SHOW CREATE TABLE table_name; +``` + +**Example** + +```sql +show create table t1; + ------- --------------------------------------------------------------- + Table Create Table + ------- --------------------------------------------------------------- + t1 CREATE TABLE `t1` ( + `c1` varchar, + `c2` int, + `c3` bigInt, + `c4` timestamp, + INDEX (KEY=`c1`, TS=`c4`, TTL_TYPE=ABSOLUTE, TTL=0m) + ) OPTIONS (PARTITIONNUM=8, REPLICANUM=2, STORAGE_MODE='HDD'); + ------- --------------------------------------------------------------- + +1 rows in set +``` \ No newline at end of file diff --git a/docs/en/reference/sql/ddl/index.rst b/docs/en/reference/sql/ddl/index.rst index 09199ec27ba..dbc94cc1f3d 100644 --- a/docs/en/reference/sql/ddl/index.rst +++ b/docs/en/reference/sql/ddl/index.rst @@ -23,3 +23,4 @@ Data Definition Statement (DDL) CREATE_FUNCTION SHOW_FUNCTIONS DROP_FUNCTION + SHOW_CREATE_TABLE_STATEMENT diff --git a/docs/zh/openmldb_sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md b/docs/zh/openmldb_sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md new file mode 100644 index 00000000000..e697f687846 --- /dev/null +++ b/docs/zh/openmldb_sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md @@ -0,0 +1,28 @@ +# SHOW CREATE TABLE + +`SHOW CREATE TABLE` 用来显示指定表的建表语句 + +**Syntax** + +```sql +SHOW CREATE TABLE table_name; +``` + +**Example** + +```sql +show create table t1; + ------- --------------------------------------------------------------- + Table Create Table + ------- --------------------------------------------------------------- + t1 CREATE TABLE `t1` ( + `c1` varchar, + `c2` int, + `c3` bigInt, + `c4` timestamp, + INDEX (KEY=`c1`, TS=`c4`, TTL_TYPE=ABSOLUTE, TTL=0m) + ) OPTIONS (PARTITIONNUM=8, REPLICANUM=2, STORAGE_MODE='HDD'); + ------- --------------------------------------------------------------- + +1 rows in set +``` \ No newline at end of file diff --git a/docs/zh/openmldb_sql/ddl/index.rst b/docs/zh/openmldb_sql/ddl/index.rst index 116b9ce29c3..efd36734261 100644 --- a/docs/zh/openmldb_sql/ddl/index.rst +++ b/docs/zh/openmldb_sql/ddl/index.rst @@ -23,3 +23,4 @@ CREATE_FUNCTION SHOW_FUNCTIONS DROP_FUNCTION + SHOW_CREATE_TABLE_STATEMENT diff --git a/hybridse/include/node/node_enum.h b/hybridse/include/node/node_enum.h index 4fc914799d0..16e18291478 100644 --- a/hybridse/include/node/node_enum.h +++ b/hybridse/include/node/node_enum.h @@ -283,6 +283,7 @@ enum CmdType { kCmdShowFunctions, kCmdDropFunction, kCmdShowJobLog, + kCmdShowCreateTable, kCmdFake, // not a real cmd, for testing purpose only kLastCmd = kCmdFake, }; diff --git a/hybridse/src/node/sql_node.cc b/hybridse/src/node/sql_node.cc index bc5aec55cf9..16b88cd51ba 100644 --- a/hybridse/src/node/sql_node.cc +++ b/hybridse/src/node/sql_node.cc @@ -58,6 +58,7 @@ static absl::flat_hash_map CreateCmdTypeNamesMap() { {CmdType::kCmdDropTable, "drop table"}, {CmdType::kCmdShowProcedures, "show procedures"}, {CmdType::kCmdShowCreateSp, "show create procedure"}, + {CmdType::kCmdShowCreateTable, "show create table"}, {CmdType::kCmdDropSp, "drop procedure"}, {CmdType::kCmdDropIndex, "drop index"}, {CmdType::kCmdExit, "exit"}, diff --git a/hybridse/src/planv2/ast_node_converter.cc b/hybridse/src/planv2/ast_node_converter.cc index 19bb0ccfc6c..c0c3864716b 100644 --- a/hybridse/src/planv2/ast_node_converter.cc +++ b/hybridse/src/planv2/ast_node_converter.cc @@ -2172,6 +2172,7 @@ static const absl::flat_hash_map showTargetMap {"SESSION VARIABLES", {node::CmdType::kCmdShowSessionVariables}}, {"GLOBAL VARIABLES", {node::CmdType::kCmdShowGlobalVariables}}, {"CREATE PROCEDURE", {node::CmdType::kCmdShowCreateSp, true}}, + {"CREATE TABLE", {node::CmdType::kCmdShowCreateTable, true}}, {"DEPLOYMENT", {node::CmdType::kCmdShowDeployment, true}}, {"JOB", {node::CmdType::kCmdShowJob, true}}, {"COMPONENTS", {node::CmdType::kCmdShowComponents}}, diff --git a/src/sdk/CMakeLists.txt b/src/sdk/CMakeLists.txt index cc959f6a23b..28c41e09c52 100644 --- a/src/sdk/CMakeLists.txt +++ b/src/sdk/CMakeLists.txt @@ -26,6 +26,9 @@ if(TESTING_ENABLE) add_executable(db_sdk_test db_sdk_test.cc) target_link_libraries(db_sdk_test ${SDK_TEST_DEPS} ${BIN_LIBS} ${THIRD_LIBS}) + add_executable(sdk_util_test sdk_util_test.cc) + target_link_libraries(sdk_util_test ${SDK_TEST_DEPS} ${BIN_LIBS} ${THIRD_LIBS}) + add_executable(result_set_sql_test result_set_sql_test.cc) target_link_libraries(result_set_sql_test ${SDK_TEST_DEPS} ${BIN_LIBS} ${THIRD_LIBS}) diff --git a/src/sdk/sdk_util.cc b/src/sdk/sdk_util.cc new file mode 100644 index 00000000000..f6027f7c08b --- /dev/null +++ b/src/sdk/sdk_util.cc @@ -0,0 +1,96 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "sdk/sdk_util.h" + +#include +#include "codec/schema_codec.h" + +namespace openmldb { +namespace sdk { + +std::string SDKUtil::GenCreateTableSQL(const ::openmldb::nameserver::TableInfo& table_info) { + std::stringstream ss; + ss << "CREATE TABLE `" << table_info.name() << "` (\n"; + for (const auto& column : table_info.column_desc()) { + auto it = openmldb::codec::DATA_TYPE_STR_MAP.find(column.data_type()); + if (it != openmldb::codec::DATA_TYPE_STR_MAP.end()) { + ss << "`" << column.name() << "` " << it->second; + if (column.has_default_value()) { + ss << " DEFAULT '" << column.default_value() << "'"; + } + if (column.not_null()) { + ss << " NOT NULL"; + } + ss << ",\n"; + } + } + int index_cnt = 0; + for (const auto& index : table_info.column_key()) { + if (index.flag() != 0) { + continue; + } + if (index_cnt > 0) { + ss << ",\n"; + } + ss << "INDEX ("; + if (index.col_name_size() == 1) { + ss << "KEY=`" << index.col_name(0) << "`"; + } else { + ss << "KEY=("; + for (int idx = 0; idx < index.col_name_size(); idx++) { + if (idx > 0) { + ss << ","; + } + ss << "`" << index.col_name(idx) << "`"; + } + ss << ")"; + } + if (index.has_ts_name() && !index.ts_name().empty()) { + ss << ", TS=`" << index.ts_name() << "`"; + } + if (index.has_ttl()) { + ss << ", TTL_TYPE="; + if (index.ttl().ttl_type() == openmldb::type::TTLType::kAbsoluteTime) { + ss << "ABSOLUTE, TTL=" << index.ttl().abs_ttl() << "m"; + } else if (index.ttl().ttl_type() == openmldb::type::TTLType::kLatestTime) { + ss << "LATEST, TTL=" << index.ttl().lat_ttl(); + } else if (index.ttl().ttl_type() == openmldb::type::TTLType::kAbsAndLat) { + ss << "ABSANDLAT, TTL=(" << index.ttl().abs_ttl() << "m, " << index.ttl().lat_ttl() << ")"; + } else if (index.ttl().ttl_type() == openmldb::type::TTLType::kAbsOrLat) { + ss << "ABSORLAT, TTL=(" << index.ttl().abs_ttl() << "m, " << index.ttl().lat_ttl() << ")"; + } + } + index_cnt++; + ss << ")"; + } + ss << "\n) "; + ss << "OPTIONS ("; + ss << "PARTITIONNUM=" << table_info.partition_num(); + ss << ", REPLICANUM=" << table_info.replica_num(); + if (table_info.storage_mode() == openmldb::common::StorageMode::kSSD) { + ss << ", STORAGE_MODE='SSD'"; + } else if (table_info.storage_mode() == openmldb::common::StorageMode::kHDD) { + ss << ", STORAGE_MODE='HDD'"; + } else { + ss << ", STORAGE_MODE='Memory'"; + } + ss << ");"; + return ss.str(); +} + +} // namespace sdk +} // namespace openmldb diff --git a/src/sdk/sdk_util.h b/src/sdk/sdk_util.h new file mode 100644 index 00000000000..c3c6df9e407 --- /dev/null +++ b/src/sdk/sdk_util.h @@ -0,0 +1,35 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef SRC_SDK_SDK_UTIL_H_ +#define SRC_SDK_SDK_UTIL_H_ + +#include + +#include "proto/name_server.pb.h" + +namespace openmldb { +namespace sdk { + +class SDKUtil { + public: + static std::string GenCreateTableSQL(const ::openmldb::nameserver::TableInfo& table_info); +}; + +} // namespace sdk +} // namespace openmldb + +#endif // SRC_SDK_SDK_UTIL_H_ diff --git a/src/sdk/sdk_util_test.cc b/src/sdk/sdk_util_test.cc new file mode 100644 index 00000000000..c214f592cba --- /dev/null +++ b/src/sdk/sdk_util_test.cc @@ -0,0 +1,127 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include + +#include "absl/strings/str_split.h" +#include "absl/strings/numbers.h" +#include "gtest/gtest.h" +#include "codec/schema_codec.h" +#include "sdk/sdk_util.h" + +namespace openmldb { +namespace sdk { + +class SDKUtilTest : public ::testing::Test { + public: + SDKUtilTest() {} + ~SDKUtilTest() {} +}; + +void SetColumnDesc(const std::vector>& col_vec, + ::openmldb::nameserver::TableInfo* table_info) { + table_info->clear_column_desc(); + for (const auto& col : col_vec) { + auto col_desc = table_info->add_column_desc(); + col_desc->set_name(col[0]); + col_desc->set_data_type(codec::DATA_TYPE_MAP.find(col[1])->second); + if (col.size() > 2 && col[2] == "no") { + col_desc->set_not_null(true); + } + if (col.size() > 3 && !col[3].empty()) { + col_desc->set_default_value(col[3]); + } + } +} + +void SetIndex(const std::vector>& index_vec, + ::openmldb::nameserver::TableInfo* table_info) { + table_info->clear_column_key(); + for (const auto& index_val : index_vec) { + auto index = table_info->add_column_key(); + index->set_index_name(index_val[0]); + std::vector list = absl::StrSplit(index_val[1], ","); + for (const auto& name : list) { + index->add_col_name(name); + } + if (!index_val[2].empty()) { + index->set_ts_name(index_val[2]); + } + auto ttl = index->mutable_ttl(); + int abs_ttl; + int lat_ttl; + ASSERT_TRUE(absl::SimpleAtoi(index_val[4], &abs_ttl)); + ASSERT_TRUE(absl::SimpleAtoi(index_val[5], &lat_ttl)); + if (index_val[3] == "absolute") { + ttl->set_ttl_type(openmldb::type::TTLType::kAbsoluteTime); + ttl->set_abs_ttl(abs_ttl); + } else if (index_val[3] == "latest") { + ttl->set_ttl_type(openmldb::type::TTLType::kLatestTime); + ttl->set_lat_ttl(lat_ttl); + } else if (index_val[3] == "absorlat") { + ttl->set_ttl_type(openmldb::type::TTLType::kAbsAndLat); + ttl->set_abs_ttl(abs_ttl); + ttl->set_lat_ttl(lat_ttl); + } else if (index_val[3] == "absandlat") { + ttl->set_ttl_type(openmldb::type::TTLType::kAbsOrLat); + ttl->set_abs_ttl(abs_ttl); + ttl->set_lat_ttl(lat_ttl); + } + } +} + +TEST_F(SDKUtilTest, GenCreateTableSQL) { + ::openmldb::nameserver::TableInfo table_info; + std::vector> col = { {"col1", "string"}, {"col2", "int"}, {"col3", "bigint", "no"}}; + std::vector> index = { {"index1", "col1", "", "absolute", "100", "0"}}; + SetColumnDesc(col, &table_info); + SetIndex(index, &table_info); + table_info.set_replica_num(1); + table_info.set_partition_num(1); + table_info.set_name("t1"); + std::string exp_ddl = "CREATE TABLE `t1` (\n" + "`col1` string,\n" + "`col2` int,\n" + "`col3` bigInt NOT NULL,\n" + "INDEX (KEY=`col1`, TTL_TYPE=ABSOLUTE, TTL=100m)\n" + ") OPTIONS (PARTITIONNUM=1, REPLICANUM=1, STORAGE_MODE='Memory');"; + ASSERT_EQ(SDKUtil::GenCreateTableSQL(table_info), exp_ddl); + std::vector> col1 = { {"col1", "string", "no", "aa"}, + {"col2", "int"}, {"col3", "timestamp"}}; + std::vector> index1 = { {"index1", "col1", "", "absolute", "100", "0"}, + {"index2", "col1,col2", "col3", "absorlat", "100", "10"}}; + SetColumnDesc(col1, &table_info); + SetIndex(index1, &table_info); + table_info.set_replica_num(3); + table_info.set_partition_num(8); + table_info.set_storage_mode(openmldb::common::StorageMode::kHDD); + exp_ddl = "CREATE TABLE `t1` (\n" + "`col1` string DEFAULT 'aa' NOT NULL,\n" + "`col2` int,\n" + "`col3` timestamp,\n" + "INDEX (KEY=`col1`, TTL_TYPE=ABSOLUTE, TTL=100m),\n" + "INDEX (KEY=(`col1`,`col2`), TS=`col3`, TTL_TYPE=ABSANDLAT, TTL=(100m, 10))\n" + ") OPTIONS (PARTITIONNUM=8, REPLICANUM=3, STORAGE_MODE='HDD');"; + ASSERT_EQ(SDKUtil::GenCreateTableSQL(table_info), exp_ddl); +} + +} // namespace sdk +} // namespace openmldb + +int main(int argc, char** argv) { + ::testing::InitGoogleTest(&argc, argv); + return RUN_ALL_TESTS(); +} diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index eea62b508ff..90054f277aa 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -55,6 +55,7 @@ #include "sdk/job_table_helper.h" #include "sdk/node_adapter.h" #include "sdk/result_set_sql.h" +#include "sdk/sdk_util.h" #include "sdk/split.h" #include "udf/udf.h" #include "vm/catalog.h" @@ -1625,15 +1626,37 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h return ResultSetSQL::MakeResultSet({"Tables"}, values, status); } + case hybridse::node::kCmdShowCreateTable: { + auto& args = cmd_node->GetArgs(); + std::string cur_db = db; + std::string table_name; + if (!ParseNamesFromArgs(db, args, &cur_db, &table_name).IsOK()) { + *status = {StatusCode::kCmdError, msg}; + return {}; + } + if (cur_db.empty()) { + *status = {::hybridse::common::StatusCode::kCmdError, "please enter database first"}; + return {}; + } + auto table = cluster_sdk_->GetTableInfo(cur_db, table_name); + if (table == nullptr) { + *status = {StatusCode::kCmdError, "table " + table_name + " does not exist"}; + return {}; + } + std::string sql = SDKUtil::GenCreateTableSQL(*table); + std::vector> values; + std::vector vec = {table_name, sql}; + values.push_back(std::move(vec)); + return ResultSetSQL::MakeResultSet({"Table", "Create Table"}, values, status); + } + case hybridse::node::kCmdDescTable: { std::string cur_db = db; std::string table_name; const auto& args = cmd_node->GetArgs(); - if (args.size() > 1) { - cur_db = args[0]; - table_name = args[1]; - } else { - table_name = args[0]; + if (!ParseNamesFromArgs(db, args, &cur_db, &table_name).IsOK()) { + *status = {StatusCode::kCmdError, msg}; + return {}; } if (cur_db.empty()) { *status = {::hybridse::common::StatusCode::kCmdError, "please enter database first"}; @@ -2990,17 +3013,17 @@ ::hybridse::sdk::Status SQLClusterRouter::SetVariable(hybridse::node::SetPlanNod ::hybridse::sdk::Status SQLClusterRouter::ParseNamesFromArgs(const std::string& db, const std::vector& args, std::string* db_name, - std::string* sp_name) { + std::string* name) { if (args.size() == 1) { // only sp name, no db_name if (db.empty()) { return {StatusCode::kCmdError, "Please enter database first"}; } *db_name = db; - *sp_name = args[0]; + *name = args[0]; } else if (args.size() == 2) { *db_name = args[0]; - *sp_name = args[1]; + *name = args[1]; } else { return {StatusCode::kCmdError, "Invalid args"}; } diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index 359ac431573..70b6f7a20f2 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -257,6 +257,24 @@ TEST_F(SQLClusterDDLTest, CreateTableWithDatabase) { ASSERT_TRUE(router->DropDB(db2, &status)); } +TEST_F(SQLClusterDDLTest, ShowCreateTable) { + ::hybridse::sdk::Status status; + ASSERT_TRUE(router->ExecuteDDL(db, "drop table if exists t1;", &status)); + std::string ddl = "CREATE TABLE `t1` (\n" + "`col1` varchar,\n" + "`col2` int,\n" + "`col3` bigInt NOT NULL,\n" + "INDEX (KEY=`col1`, TTL_TYPE=ABSOLUTE, TTL=100m)\n" + ") OPTIONS (PARTITIONNUM=1, REPLICANUM=1, STORAGE_MODE='Memory');"; + ASSERT_TRUE(router->ExecuteDDL(db, ddl, &status)) << "ddl: " << ddl; + ASSERT_TRUE(router->RefreshCatalog()); + auto rs = router->ExecuteSQL(db, "show create table t1;", &status); + ASSERT_TRUE(status.IsOK()) << status.msg; + ASSERT_TRUE(rs->Next()); + ASSERT_EQ(ddl, rs->GetStringUnsafe(1)); + ASSERT_TRUE(router->ExecuteDDL(db, "drop table t1;", &status)); +} + TEST_F(SQLClusterDDLTest, CreateTableWithDatabaseWrongDDL) { std::string name = "test" + GenRand(); ::hybridse::sdk::Status status; diff --git a/third-party/cmake/FetchZetasql.cmake b/third-party/cmake/FetchZetasql.cmake index 09d4f3d6761..b2b1d580593 100644 --- a/third-party/cmake/FetchZetasql.cmake +++ b/third-party/cmake/FetchZetasql.cmake @@ -13,10 +13,10 @@ # limitations under the License. set(ZETASQL_HOME https://github.com/4paradigm/zetasql) -set(ZETASQL_VERSION 0.3.0) -set(ZETASQL_HASH_DARWIN 1b7e9c68d7fee29abf734be57934440b6891d4e80e22d8a92832518914373bea) -set(ZETASQL_HASH_LINUX_UBUNTU 0efb4feb822440e91ccd8c04d3a102cac9730745550168266b3544224fc86a63) -set(ZETASQL_HASH_LINUX_CENTOS 098ecb71b8a3dd7d8c6887d3b2b9306f0a130434f135754fd9930ccb11d80fed) +set(ZETASQL_VERSION 0.3.1) +set(ZETASQL_HASH_DARWIN 48bfdfe5fa91d414b0bf8383f116bc2a1f558c12fa286e49ea5ceede366dfbcf) +set(ZETASQL_HASH_LINUX_UBUNTU 3847ed7a60aeda1192adf7d702076d2db2bd49258992e2af67515a57b8f6f6a6) +set(ZETASQL_HASH_LINUX_CENTOS e73e6259ab2df3ae7289a9ae78600b69a8fbb6e4890d07a1031ccb1e37fa4281) set(ZETASQL_TAG v${ZETASQL_VERSION}) function(init_zetasql_urls) From 9077b86de86c8ffb4da874c1b781be3f26275cb0 Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Tue, 17 Oct 2023 15:40:07 +0800 Subject: [PATCH 073/111] build(deps-dev): bump urllib3 from 1.26.12 to 1.26.17 in /docs (#3538) --- docs/poetry.lock | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/docs/poetry.lock b/docs/poetry.lock index b2e0c52c7c0..fa522bb44da 100644 --- a/docs/poetry.lock +++ b/docs/poetry.lock @@ -670,17 +670,17 @@ test = ["coverage", "pytest", "pytest-cov"] [[package]] name = "urllib3" -version = "1.26.12" +version = "1.26.17" description = "HTTP library with thread-safe connection pooling, file post, and more." optional = false -python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, <4" +python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*" files = [ - {file = "urllib3-1.26.12-py2.py3-none-any.whl", hash = "sha256:b930dd878d5a8afb066a637fbb35144fe7901e3b209d1cd4f524bd0e9deee997"}, - {file = "urllib3-1.26.12.tar.gz", hash = "sha256:3fa96cf423e6987997fc326ae8df396db2a8b7c667747d47ddd8ecba91f4a74e"}, + {file = "urllib3-1.26.17-py2.py3-none-any.whl", hash = "sha256:94a757d178c9be92ef5539b8840d48dc9cf1b2709c9d6b588232a055c524458b"}, + {file = "urllib3-1.26.17.tar.gz", hash = "sha256:24d6a242c28d29af46c3fae832c36db3bbebcc533dd1bb549172cd739c82df21"}, ] [package.extras] -brotli = ["brotli (>=1.0.9)", "brotlicffi (>=0.8.0)", "brotlipy (>=0.6.0)"] +brotli = ["brotli (==1.0.9)", "brotli (>=1.0.9)", "brotlicffi (>=0.8.0)", "brotlipy (>=0.6.0)"] secure = ["certifi", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "ipaddress", "pyOpenSSL (>=0.14)", "urllib3-secure-extra"] socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"] From 3bb9df7495b31fff60e14e60ee7a7f93fad3a496 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Tue, 17 Oct 2023 17:50:28 +0800 Subject: [PATCH 074/111] ci: reduce disk usage for java jobs (#3556) * build(java): dont pack resouces for source-jars Github runner has the limitation of disk usage of 14G, this should help reduce the disk usage on CI. * ci(sdk): reduce cache size for maven 1. don't include local installed openmldb jars, they are not dependency 2. don't fallback cache if key miss-match * fix: rm if dir not exists --- .github/workflows/sdk.yml | 9 +++++---- java/pom.xml | 5 ++++- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/.github/workflows/sdk.yml b/.github/workflows/sdk.yml index ed78524a9f6..8f4dc6bd628 100644 --- a/.github/workflows/sdk.yml +++ b/.github/workflows/sdk.yml @@ -68,8 +68,6 @@ jobs: with: path: ~/.m2/repository key: ${{ runner.os }}-maven-${{ hashFiles('java/**/pom.xml') }} - restore-keys: | - ${{ runner.os }}-maven- - name: prepare release if: github.event_name == 'push' @@ -124,6 +122,7 @@ jobs: - name: maven coverage working-directory: java run: | + rm -rfv ~/.m2/repository/com/4paradigm/ ./mvnw --batch-mode prepare-package ./mvnw --batch-mode scoverage:report @@ -160,8 +159,6 @@ jobs: with: path: ~/.m2/repository key: ${{ runner.os }}-maven-${{ hashFiles('java/**/pom.xml') }} - restore-keys: | - ${{ runner.os }}-maven- - name: Cache thirdparty uses: actions/cache@v3 @@ -236,6 +233,10 @@ jobs: MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }} MAVEN_TOKEN: ${{ secrets.OSSRH_TOKEN }} GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }} + - name: cleanup + run: | + rm -rfv ~/.m2/repository/com/4paradigm/ + python-sdk: runs-on: ubuntu-latest diff --git a/java/pom.xml b/java/pom.xml index 00c893a4201..42ba84c34b8 100644 --- a/java/pom.xml +++ b/java/pom.xml @@ -355,7 +355,7 @@ org.apache.maven.plugins maven-source-plugin - 2.2.1 + 3.3.0 attach-sources @@ -364,6 +364,9 @@ + + true + org.apache.maven.plugins From 190992d3ce02067baab962c5c5bdd0d673503581 Mon Sep 17 00:00:00 2001 From: dl239 Date: Fri, 20 Oct 2023 14:57:55 +0800 Subject: [PATCH 075/111] fix: python mac sdk run failed (#3518) * fix: python mac * fix: fix comment --- onebox/stop_all.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/onebox/stop_all.sh b/onebox/stop_all.sh index 747adcdf929..7ba340228f3 100755 --- a/onebox/stop_all.sh +++ b/onebox/stop_all.sh @@ -17,7 +17,7 @@ set -x -e if [[ "$OSTYPE" = "darwin"* ]]; then - pkill -9 -x -l openmldb + pkill -9 -x -l openmldb || exit 0 else pgrep -a -f "openmldb.*onebox.*" | awk '{print $1}' | xargs -I {} kill -9 {} fi From 6fe2a30e5679e55e8ac6480a3df5c981e01ee8ca Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Mon, 23 Oct 2023 21:43:22 +0800 Subject: [PATCH 076/111] fix(codegen): handle nullable for date type (#3543) * fix(codegen): handle nullable for date type Also fix include headers * fix(codegen): handle nulls for date and timestamp always returns allocated structure even it is null, for the cases: 1. construct timestamp from number, even number is < 0 2. construct date from timestamp, even timestamp is null --- cases/query/const_query.yaml | 12 +++++++++ hybridse/src/codegen/array_ir_builder.cc | 1 + hybridse/src/codegen/cast_expr_ir_builder.cc | 5 ++++ hybridse/src/codegen/date_ir_builder.cc | 19 ++++++++++---- hybridse/src/codegen/date_ir_builder.h | 22 +++++++--------- hybridse/src/codegen/ir_base_builder.h | 1 - hybridse/src/codegen/native_value.cc | 1 - .../src/codegen/predicate_expr_ir_builder.cc | 1 + hybridse/src/codegen/struct_ir_builder.h | 6 ++--- hybridse/src/codegen/timestamp_ir_builder.cc | 26 ++++++++++--------- hybridse/src/codegen/timestamp_ir_builder.h | 9 +++---- hybridse/src/codegen/type_ir_builder.cc | 1 + hybridse/src/codegen/type_ir_builder.h | 7 +++-- hybridse/src/codegen/udf_ir_builder.cc | 12 ++++----- hybridse/src/codegen/udf_ir_builder.h | 4 --- hybridse/src/udf/default_udf_library.cc | 13 ++-------- hybridse/src/udf/udf.cc | 15 +++-------- hybridse/src/udf/udf.h | 4 --- 18 files changed, 76 insertions(+), 83 deletions(-) diff --git a/cases/query/const_query.yaml b/cases/query/const_query.yaml index 38bbbeb5e47..5efe6fa3c29 100644 --- a/cases/query/const_query.yaml +++ b/cases/query/const_query.yaml @@ -126,3 +126,15 @@ cases: columns: ['c1 bool', 'c2 int16', 'c3 int', 'c4 double', 'c5 string', 'c6 date', 'c7 timestamp' ] rows: - [ true, 3, 13, 10.0, 'a string', '2020-05-22', 1590115420000 ] + - id: 10 + mode: procedure-unsupport + sql: | + select + datediff(Date(timestamp(-1)), Date("2021-05-01")) as out1, + datediff(Date(timestamp(-2177481600)), Date("2021-05-01")) as out2, + datediff(cast(NULL as date), Date("2021-05-01")) as out3 + ; + expect: + columns: ["out1 int", "out2 int", "out3 int"] + data: | + NULL, NULL, NULL diff --git a/hybridse/src/codegen/array_ir_builder.cc b/hybridse/src/codegen/array_ir_builder.cc index f07f551caf1..0788c1ba8aa 100644 --- a/hybridse/src/codegen/array_ir_builder.cc +++ b/hybridse/src/codegen/array_ir_builder.cc @@ -17,6 +17,7 @@ #include "codegen/array_ir_builder.h" #include +#include "codegen/ir_base_builder.h" namespace hybridse { namespace codegen { diff --git a/hybridse/src/codegen/cast_expr_ir_builder.cc b/hybridse/src/codegen/cast_expr_ir_builder.cc index 526a686ae66..bdb6329c6c8 100644 --- a/hybridse/src/codegen/cast_expr_ir_builder.cc +++ b/hybridse/src/codegen/cast_expr_ir_builder.cc @@ -126,6 +126,11 @@ Status CastExprIRBuilder::UnSafeCast(const NativeValue& value, StringIRBuilder string_ir_builder(block_->getModule()); CHECK_STATUS(string_ir_builder.CreateNull(block_, output)); return base::Status::OK(); + + } else if (TypeIRBuilder::IsDatePtr(type)) { + DateIRBuilder date_ir(block_->getModule()); + CHECK_STATUS(date_ir.CreateNull(block_, output)); + return base::Status::OK(); } else { *output = NativeValue::CreateNull(type); } diff --git a/hybridse/src/codegen/date_ir_builder.cc b/hybridse/src/codegen/date_ir_builder.cc index 65c439fd143..3a60147bd9a 100644 --- a/hybridse/src/codegen/date_ir_builder.cc +++ b/hybridse/src/codegen/date_ir_builder.cc @@ -19,6 +19,7 @@ #include #include "codegen/arithmetic_expr_ir_builder.h" #include "codegen/ir_base_builder.h" +#include "codegen/null_ir_builder.h" namespace hybridse { namespace codegen { @@ -43,6 +44,15 @@ void DateIRBuilder::InitStructType() { struct_type_ = stype; return; } + +base::Status DateIRBuilder::CreateNull(::llvm::BasicBlock* block, NativeValue* output) { + ::llvm::Value* value = nullptr; + CHECK_TRUE(CreateDefault(block, &value), common::kCodegenError, "Fail to construct string") + ::llvm::IRBuilder<> builder(block); + *output = NativeValue::CreateWithFlag(value, builder.getInt1(true)); + return base::Status::OK(); +} + bool DateIRBuilder::CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) { return NewDate(block, output); @@ -123,11 +133,10 @@ base::Status DateIRBuilder::CastFrom(::llvm::BasicBlock* block, auto cast_func = m_->getOrInsertFunction( fn_name, ::llvm::FunctionType::get(builder.getVoidTy(), - {src.GetType(), dist->getType(), - builder.getInt1Ty()->getPointerTo()}, - false)); - builder.CreateCall(cast_func, - {src.GetValue(&builder), dist, is_null_ptr}); + {src.GetType(), dist->getType(), builder.getInt1Ty()->getPointerTo()}, false)); + + builder.CreateCall(cast_func, {src.GetValue(&builder), dist, is_null_ptr}); + ::llvm::Value* should_return_null = builder.CreateLoad(is_null_ptr); null_ir_builder.CheckAnyNull(block, src, &should_return_null); *output = NativeValue::CreateWithFlag(dist, should_return_null); diff --git a/hybridse/src/codegen/date_ir_builder.h b/hybridse/src/codegen/date_ir_builder.h index cb41dc5f263..b44b039d57d 100644 --- a/hybridse/src/codegen/date_ir_builder.h +++ b/hybridse/src/codegen/date_ir_builder.h @@ -16,13 +16,9 @@ #ifndef HYBRIDSE_SRC_CODEGEN_DATE_IR_BUILDER_H_ #define HYBRIDSE_SRC_CODEGEN_DATE_IR_BUILDER_H_ + #include "base/fe_status.h" -#include "codegen/cast_expr_ir_builder.h" -#include "codegen/null_ir_builder.h" -#include "codegen/scope_var.h" #include "codegen/struct_ir_builder.h" -#include "llvm/IR/IRBuilder.h" -#include "proto/fe_type.pb.h" namespace hybridse { namespace codegen { @@ -31,17 +27,17 @@ class DateIRBuilder : public StructTypeIRBuilder { public: explicit DateIRBuilder(::llvm::Module* m); ~DateIRBuilder(); - void InitStructType(); - bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output); + void InitStructType() override; + + base::Status CreateNull(::llvm::BasicBlock* block, NativeValue* output); + bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) override; + bool NewDate(::llvm::BasicBlock* block, ::llvm::Value** output); bool NewDate(::llvm::BasicBlock* block, ::llvm::Value* date, ::llvm::Value** output); - bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, - ::llvm::Value* dist); - base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, - NativeValue* output); - base::Status CastFrom(::llvm::BasicBlock* block, ::llvm::Value* src, - ::llvm::Value** output); + bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist); + base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, NativeValue* output); + bool GetDate(::llvm::BasicBlock* block, ::llvm::Value* date, ::llvm::Value** output); bool SetDate(::llvm::BasicBlock* block, ::llvm::Value* date, diff --git a/hybridse/src/codegen/ir_base_builder.h b/hybridse/src/codegen/ir_base_builder.h index c52bba23431..db2075289cf 100644 --- a/hybridse/src/codegen/ir_base_builder.h +++ b/hybridse/src/codegen/ir_base_builder.h @@ -19,7 +19,6 @@ #include #include -#include "glog/logging.h" #include "llvm/IR/IRBuilder.h" #include "node/sql_node.h" #include "node/type_node.h" diff --git a/hybridse/src/codegen/native_value.cc b/hybridse/src/codegen/native_value.cc index c4c6e2e562a..fce4f0bb5bb 100644 --- a/hybridse/src/codegen/native_value.cc +++ b/hybridse/src/codegen/native_value.cc @@ -17,7 +17,6 @@ #include "codegen/native_value.h" #include #include -#include #include "codegen/context.h" #include "codegen/ir_base_builder.h" diff --git a/hybridse/src/codegen/predicate_expr_ir_builder.cc b/hybridse/src/codegen/predicate_expr_ir_builder.cc index aaf0fb0753c..45ed8f7ec21 100644 --- a/hybridse/src/codegen/predicate_expr_ir_builder.cc +++ b/hybridse/src/codegen/predicate_expr_ir_builder.cc @@ -17,6 +17,7 @@ #include "codegen/predicate_expr_ir_builder.h" #include "codegen/date_ir_builder.h" #include "codegen/ir_base_builder.h" +#include "codegen/null_ir_builder.h" #include "codegen/string_ir_builder.h" #include "codegen/timestamp_ir_builder.h" #include "codegen/type_ir_builder.h" diff --git a/hybridse/src/codegen/struct_ir_builder.h b/hybridse/src/codegen/struct_ir_builder.h index 2f1f94d036c..e306dfe869e 100644 --- a/hybridse/src/codegen/struct_ir_builder.h +++ b/hybridse/src/codegen/struct_ir_builder.h @@ -16,12 +16,10 @@ #ifndef HYBRIDSE_SRC_CODEGEN_STRUCT_IR_BUILDER_H_ #define HYBRIDSE_SRC_CODEGEN_STRUCT_IR_BUILDER_H_ + #include "base/fe_status.h" -#include "codegen/cast_expr_ir_builder.h" -#include "codegen/scope_var.h" +#include "codegen/native_value.h" #include "codegen/type_ir_builder.h" -#include "llvm/IR/IRBuilder.h" -#include "proto/fe_type.pb.h" namespace hybridse { namespace codegen { diff --git a/hybridse/src/codegen/timestamp_ir_builder.cc b/hybridse/src/codegen/timestamp_ir_builder.cc index 13d6e065f39..f14952f455c 100644 --- a/hybridse/src/codegen/timestamp_ir_builder.cc +++ b/hybridse/src/codegen/timestamp_ir_builder.cc @@ -15,14 +15,15 @@ */ #include "codegen/timestamp_ir_builder.h" + #include #include + #include "codegen/arithmetic_expr_ir_builder.h" #include "codegen/ir_base_builder.h" #include "codegen/null_ir_builder.h" #include "codegen/predicate_expr_ir_builder.h" #include "glog/logging.h" -#include "node/sql_node.h" using hybridse::common::kCodegenError; @@ -70,29 +71,30 @@ base::Status TimestampIRBuilder::CastFrom(::llvm::BasicBlock* block, CondSelectIRBuilder cond_ir_builder; PredicateIRBuilder predicate_ir_builder(block); NullIRBuilder null_ir_builder; + + // always allocate for returned timestmap even it is null + ::llvm::Value* dist = nullptr; + if (!CreateDefault(block, &dist)) { + status.code = common::kCodegenError; + status.msg = "Fail to cast date: create default date fail"; + return status; + } + if (IsNumber(src.GetType())) { CHECK_STATUS(cast_builder.Cast(src, builder.getInt64Ty(), &ts)); NativeValue cond; CHECK_STATUS(predicate_ir_builder.BuildGeExpr( ts, NativeValue::Create(builder.getInt64(0)), &cond)); - ::llvm::Value* timestamp; - CHECK_TRUE(NewTimestamp(block, ts.GetValue(&builder), ×tamp), + CHECK_TRUE(SetTs(block, dist, ts.GetValue(&builder)), kCodegenError, "Fail to cast timestamp: new timestamp(ts) fail"); - CHECK_STATUS( - cond_ir_builder.Select(block, cond, NativeValue::Create(timestamp), - NativeValue::CreateNull(GetType()), output)); + CHECK_STATUS(cond_ir_builder.Select(block, cond, NativeValue::Create(dist), + NativeValue::CreateWithFlag(dist, builder.getInt1(true)), output)); } else if (IsStringPtr(src.GetType()) || IsDatePtr(src.GetType())) { ::llvm::IRBuilder<> builder(block); - ::llvm::Value* dist = nullptr; ::llvm::Value* is_null_ptr = CreateAllocaAtHead( &builder, builder.getInt1Ty(), "timestamp_is_null_alloca"); - if (!CreateDefault(block, &dist)) { - status.code = common::kCodegenError; - status.msg = "Fail to cast date: create default date fail"; - return status; - } ::std::string fn_name = "timestamp." + TypeName(src.GetType()); auto cast_func = m_->getOrInsertFunction( diff --git a/hybridse/src/codegen/timestamp_ir_builder.h b/hybridse/src/codegen/timestamp_ir_builder.h index 33de3cce2e5..84051979597 100644 --- a/hybridse/src/codegen/timestamp_ir_builder.h +++ b/hybridse/src/codegen/timestamp_ir_builder.h @@ -16,12 +16,9 @@ #ifndef HYBRIDSE_SRC_CODEGEN_TIMESTAMP_IR_BUILDER_H_ #define HYBRIDSE_SRC_CODEGEN_TIMESTAMP_IR_BUILDER_H_ + #include "base/fe_status.h" -#include "codegen/cast_expr_ir_builder.h" -#include "codegen/scope_var.h" #include "codegen/struct_ir_builder.h" -#include "llvm/IR/IRBuilder.h" -#include "proto/fe_type.pb.h" namespace hybridse { namespace codegen { @@ -33,8 +30,8 @@ class TimestampIRBuilder : public StructTypeIRBuilder { void InitStructType(); bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output); bool NewTimestamp(::llvm::BasicBlock* block, ::llvm::Value** output); - bool NewTimestamp(::llvm::BasicBlock* block, ::llvm::Value* ts, - ::llvm::Value** output); + bool NewTimestamp(::llvm::BasicBlock* block, ::llvm::Value* ts, ::llvm::Value** output); + bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist); base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, diff --git a/hybridse/src/codegen/type_ir_builder.cc b/hybridse/src/codegen/type_ir_builder.cc index 3fcd5891c4c..bbdf1346995 100644 --- a/hybridse/src/codegen/type_ir_builder.cc +++ b/hybridse/src/codegen/type_ir_builder.cc @@ -15,6 +15,7 @@ */ #include "codegen/type_ir_builder.h" + #include "codegen/ir_base_builder.h" #include "glog/logging.h" #include "node/node_manager.h" diff --git a/hybridse/src/codegen/type_ir_builder.h b/hybridse/src/codegen/type_ir_builder.h index e06e77244e6..ad7d5f225b9 100644 --- a/hybridse/src/codegen/type_ir_builder.h +++ b/hybridse/src/codegen/type_ir_builder.h @@ -18,11 +18,10 @@ #define HYBRIDSE_SRC_CODEGEN_TYPE_IR_BUILDER_H_ #include -#include + #include "base/fe_status.h" -#include "codec/fe_row_codec.h" -#include "codegen/ir_base_builder.h" -#include "node/node_enum.h" +#include "llvm/IR/Module.h" +#include "llvm/IR/Type.h" #include "node/sql_node.h" #include "node/type_node.h" diff --git a/hybridse/src/codegen/udf_ir_builder.cc b/hybridse/src/codegen/udf_ir_builder.cc index 6d6f967a83e..5030f3cd8ae 100644 --- a/hybridse/src/codegen/udf_ir_builder.cc +++ b/hybridse/src/codegen/udf_ir_builder.cc @@ -15,19 +15,17 @@ */ #include "codegen/udf_ir_builder.h" -#include -#include + #include + #include "codegen/context.h" -#include "codegen/date_ir_builder.h" #include "codegen/fn_ir_builder.h" +#include "codegen/ir_base_builder.h" #include "codegen/list_ir_builder.h" #include "codegen/null_ir_builder.h" -#include "codegen/timestamp_ir_builder.h" +#include "codegen/type_ir_builder.h" #include "llvm/IR/Attributes.h" -#include "node/node_manager.h" #include "node/sql_node.h" -#include "udf/udf.h" #include "udf/udf_registry.h" using ::hybridse::common::kCodegenError; @@ -162,7 +160,7 @@ Status UdfIRBuilder::BuildLambdaCall( Status UdfIRBuilder::BuildCodeGenUdfCall( const node::UdfByCodeGenDefNode* fn, const std::vector& args, NativeValue* output) { - auto gen_impl = fn->GetGenImpl(); + std::shared_ptr gen_impl = fn->GetGenImpl(); ::llvm::Value* ret_null = nullptr; for (size_t i = 0; i < fn->GetArgSize(); ++i) { diff --git a/hybridse/src/codegen/udf_ir_builder.h b/hybridse/src/codegen/udf_ir_builder.h index ed15b6432c7..9e33837bf96 100644 --- a/hybridse/src/codegen/udf_ir_builder.h +++ b/hybridse/src/codegen/udf_ir_builder.h @@ -17,13 +17,9 @@ #ifndef HYBRIDSE_SRC_CODEGEN_UDF_IR_BUILDER_H_ #define HYBRIDSE_SRC_CODEGEN_UDF_IR_BUILDER_H_ -#include -#include #include #include "base/fe_status.h" #include "codegen/expr_ir_builder.h" -#include "codegen/scope_var.h" -#include "llvm/IR/Module.h" #include "node/sql_node.h" namespace hybridse { diff --git a/hybridse/src/udf/default_udf_library.cc b/hybridse/src/udf/default_udf_library.cc index 8b98212fffb..fef776d3ffd 100644 --- a/hybridse/src/udf/default_udf_library.cc +++ b/hybridse/src/udf/default_udf_library.cc @@ -26,7 +26,6 @@ #include #include -#include "absl/strings/str_cat.h" #include "codegen/date_ir_builder.h" #include "codegen/string_ir_builder.h" #include "codegen/timestamp_ir_builder.h" @@ -2169,11 +2168,7 @@ void DefaultUdfLibrary::InitTypeUdf() { )"); RegisterExternal("date") - .args(reinterpret_cast( - static_cast( - v1::timestamp_to_date))) - .return_by_arg(true) - .returns>() + .args(v1::timestamp_to_date) .doc(R"( @brief Cast timestamp or string expression to date (date >= 1900-01-01) @@ -2192,11 +2187,7 @@ void DefaultUdfLibrary::InitTypeUdf() { @endcode @since 0.1.0)"); RegisterExternal("date") - .args(reinterpret_cast( - static_cast( - v1::string_to_date))) - .return_by_arg(true) - .returns>(); + .args(v1::string_to_date); RegisterExternal("timestamp") .args(reinterpret_cast( diff --git a/hybridse/src/udf/udf.cc b/hybridse/src/udf/udf.cc index 2ec7033472f..9326d576685 100644 --- a/hybridse/src/udf/udf.cc +++ b/hybridse/src/udf/udf.cc @@ -20,8 +20,6 @@ #include #include -#include -#include #include #include "absl/strings/ascii.h" @@ -29,20 +27,17 @@ #include "absl/time/civil_time.h" #include "absl/time/time.h" #include "base/iterator.h" -#include "boost/date_time.hpp" +#include "boost/date_time/gregorian/conversion.hpp" #include "boost/date_time/gregorian/parsers.hpp" -#include "boost/date_time/posix_time/posix_time.hpp" #include "bthread/types.h" -#include "codec/list_iterator_codec.h" #include "codec/row.h" #include "codec/type_codec.h" -#include "codegen/fn_ir_builder.h" #include "farmhash.h" #include "node/node_manager.h" #include "node/sql_node.h" #include "re2/re2.h" -#include "udf/default_udf_library.h" #include "udf/literal_traits.h" +#include "udf/udf_library.h" #include "vm/jit_runtime.h" namespace hybridse { @@ -394,8 +389,7 @@ void bool_to_string(bool v, StringRef *output) { } } -void timestamp_to_date(Timestamp *timestamp, - Date *output, bool *is_null) { +void timestamp_to_date(Timestamp *timestamp, Date *output, bool *is_null) { time_t time = (timestamp->ts_ + TZ_OFFSET) / 1000; struct tm t; memset(&t, 0, sizeof(struct tm)); @@ -771,8 +765,7 @@ void string_to_double(StringRef *str, double *out, bool *is_null_ptr) { } return; } -void string_to_date(StringRef *str, Date *output, - bool *is_null) { +void string_to_date(StringRef *str, Date *output, bool *is_null) { if (19 == str->size_) { struct tm timeinfo; memset(&timeinfo, 0, sizeof(struct tm)); diff --git a/hybridse/src/udf/udf.h b/hybridse/src/udf/udf.h index a761e99f88b..c91b78d1c90 100644 --- a/hybridse/src/udf/udf.h +++ b/hybridse/src/udf/udf.h @@ -26,10 +26,6 @@ #include "absl/strings/ascii.h" #include "base/string_ref.h" #include "base/type.h" -#include "codec/list_iterator_codec.h" -#include "codec/type_codec.h" -#include "node/node_manager.h" -#include "proto/fe_type.pb.h" #include "udf/literal_traits.h" #include "udf/openmldb_udf.h" From d2467ea45abcffa109745e7a704143dc838764fd Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Thu, 26 Oct 2023 14:27:31 +0800 Subject: [PATCH 077/111] docs: remove the export tool doc from the maintain folder (en) --- docs/en/maintain/data_export.md | 58 --------------------------------- 1 file changed, 58 deletions(-) delete mode 100644 docs/en/maintain/data_export.md diff --git a/docs/en/maintain/data_export.md b/docs/en/maintain/data_export.md deleted file mode 100644 index 0916a8bc553..00000000000 --- a/docs/en/maintain/data_export.md +++ /dev/null @@ -1,58 +0,0 @@ -# Data Export Tool - -Data Export Tool locates in [src/tools](https://github.com/4paradigm/OpenMLDB/tree/main/src/tools)。It supports exporting data from remote machines in standalone mode or cluster mode. - -## 1. Build - -Generate the Unix Executable file:`make` under src folder. - -## 2. Data Export Usage - -### 2.1 Command Line Arguments - -All configurations are showed as follows, * indicates required configurations. - -``` -Usage: ./data_exporter [--delimiter=] --db_name= - [--user_name=] --table_name= - --config_path= - -* --db_name= openmldb database name -* --table_name= openmldb table name of the selected database -* --config_path= absolute or relative path of the config file - --delimiter= delimiter for the output csv, default is ',' - --user_name= user name of the remote machine -``` - -### 2.2 Important Configurations Instructions - -Descriptions of the important configurations: - -- `--db_name=`: OpenMLDB database name. The database must exist, otherwise would return an error message: database not found. -- `--table_name=`: table name. 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z0Gx2gw7ZdFS=uoPZi2%$(y>AC90QVZU9{iEvz0*jUTQsvH^r8q9li9sMEkdW(P>nB2e~pP|)mAK%DqOCdzL8`h%2s+#;;LqGrK3R%hwW z{?Urb#z~|oK3s)V|2xcAmnpmbcrWhev>%w49@CfjBesb6QRrR*G(=9|$O)dP-=l_K zKEo)&?QEXbvCAhO>yMX<^ktVeqeMnF9}b_XR_$AsU6|G`7bX!08s&ce=;%1ITsPLu z|9}3R|L-l#1D$0ld+$^%pM9~sb|ZEd4ZXbcV|gbn|4K~l{r5#V;#k+Bbxm@k@OPG{ LZB7x*U8DXNM%Fm7 literal 0 HcmV?d00001 From bba4e51422b7412d4b691f2fc2e89048d6479216 Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Thu, 26 Oct 2023 14:50:09 +0800 Subject: [PATCH 079/111] docs: update the quickstart and sdk folder (#3537) * Docs: Update-quickstart-sdk-folder * Docs: update-quickstart-sdk-index-file * Update compile.md Update referred document to the latest * Update cxx_sdk.md with recent updates * Update go_sdk.md * Update rest_api.md * Update java_sdk.md to most recent upate * Update python_sdk.md to most recent updates * Update python_sdk.md image reference link --------- Co-authored-by: Siqi Wang --- docs/en/deploy/compile.md | 105 ++++++++---- docs/en/quickstart/sdk/cpp_sdk.md | 117 -------------- docs/en/quickstart/sdk/cxx_sdk.md | 138 ++++++++++++++++ docs/en/quickstart/sdk/go_sdk.md | 12 +- docs/en/quickstart/sdk/index.rst | 4 +- docs/en/quickstart/sdk/java_sdk.md | 234 +++++++++++++++++++++------ docs/en/quickstart/sdk/python_sdk.md | 91 ++++++----- docs/en/quickstart/sdk/rest_api.md | 31 ++-- 8 files changed, 476 insertions(+), 256 deletions(-) delete mode 100644 docs/en/quickstart/sdk/cpp_sdk.md create mode 100644 docs/en/quickstart/sdk/cxx_sdk.md diff --git a/docs/en/deploy/compile.md b/docs/en/deploy/compile.md index a20c921b4ac..3fdd9826726 100644 --- a/docs/en/deploy/compile.md +++ b/docs/en/deploy/compile.md @@ -1,11 +1,9 @@ -# Build +# Compilation from Source Code -## 1. Quick Start +## Compile and Use in Docker Container -[quick-start]: quick-start - -This section describes the steps to compile and use OpenMLDB inside its official docker image [hybridsql](https://hub.docker.com/r/4pdosc/hybridsql). -The docker image has packed required tools and dependencies, so there is no need to set them up separately. To compile without the official docker image, refer to the section [Detailed Instructions for Build](#detailed-instructions-for-build) below. +This section describes the steps to compile and use OpenMLDB inside its official docker image [hybridsql](https://hub.docker.com/r/4pdosc/hybridsql), mainly for quick start and development purposes in the docker container. +The docker image has packed the required tools and dependencies, so there is no need to set them up separately. To compile without the official docker image, refer to the section [Detailed Instructions for Build](#detailed-instructions-for-build) below. Keep in mind that you should always use the same version of both compile image and [OpenMLDB version](https://github.com/4paradigm/OpenMLDB/releases). This section demonstrates compiling for [OpenMLDB v0.8.3](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.3) under `hybridsql:0.8.3` ,If you prefer to compile on the latest code in `main` branch, pull `hybridsql:latest` image instead. @@ -15,13 +13,13 @@ Keep in mind that you should always use the same version of both compile image a docker pull 4pdosc/hybridsql:0.8 ``` -2. Create a docker container with the hybridsql docker image +2. Create a docker container ```bash docker run -it 4pdosc/hybridsql:0.8 bash ``` -3. Download the OpenMLDB source code inside the docker container, and setting the branch into v0.8.3 +3. Download the OpenMLDB source code inside the docker container, and set the branch into v0.8.3 ```bash cd ~ @@ -41,52 +39,49 @@ Keep in mind that you should always use the same version of both compile image a make install ``` -Now you've finished the compilation job, and you may try run OpenMLDB inside the docker container. +Now you've finished the compilation job, you may try running OpenMLDB inside the docker container. -## 2. Detailed Instructions for Build +## Detailed Instructions for Build -[build]: build +This chapter discusses compiling source code without relying on pre-built container environments. -### 2.1. Hardware Requirements +### Hardware Requirements - **Memory**: 8GB+ recommended. - **Disk Space**: >=25GB of free disk space for full compilation. - **Operating System**: CentOS 7, Ubuntu 20.04 or macOS >= 10.15, other systems are not carefully tested but issue/PR welcome +- **CPU Architecture**: Currently, only x86 architecture is supported, and other architectures like ARM are not supported at the moment (please note that running x86 images on heterogeneous systems like M1 Mac is also not supported at this time). -Note: By default, the parallel build is disabled, and it usually takes an hour to finish all the compile jobs. You can enable the parallel build by tweaking the `NPROC` option if your machine's resource is enough. This will reduce the compile time but also consume more memory. For example, the following command set the number of concurrent build jobs to 4: +💡 Note: By default, the parallel build is disabled, and it usually takes an hour to finish all the compile jobs. You can enable the parallel build by tweaking the `NPROC` option if your machine's resource is enough. This will reduce the compile time but also consume more memory. For example, the following command sets the number of concurrent build jobs to 4: ```bash make NPROC=4 ``` -### 2.2. Prerequisites - -Make sure those tools are installed - +### Dependencies - gcc >= 8 or AppleClang >= 12.0.0 -- cmake 3.20 or later ( < cmake 3.24 is better) +- cmake 3.20 or later ( recommended < cmake 3.24) - jdk 8 - python3, python setuptools, python wheel - If you'd like to compile thirdparty from source, checkout the [third-party's requirement](../../third-party/README.md) for extra dependencies -### 2.3. Build and Install OpenMLDB +### Build and Install OpenMLDB Building OpenMLDB requires certain thirdparty dependencies. Hence a Makefile is provided as a convenience to setup thirdparty dependencies automatically and run CMake project in a single command `make`. The `make` command offers three methods to compile, each manages thirdparty differently: -- **Method One: Build and Run Inside Docker:** Using [hybridsql](https://hub.docker.com/r/4pdosc/hybridsql) docker image, the thirdparty is already bundled inside the image and no extra steps are required, refer to above section [Quick Start](#quick-start) -- **Method Two: Download Pre-Compiled Thirdparty:** Command is `make && make install`. It downloads necessary prebuild libraries from [hybridsql-assert](https://github.com/4paradigm/hybridsql-asserts/releases) and [zetasql](https://github.com/4paradigm/zetasql/releases). Currently it supports CentOS 7, Ubuntu 20.04 and macOS. -- **Method Three: Compile Thirdparty from Source:** This is the suggested way if the host system is not in the supported list for pre-compiled thirdparty (CentOS 7, Ubuntu 20.04 and macOS). Note that when compiling thirdparty for the first time requires extra time to finish, approximately 1 hour on a 2 core & 7 GB machine. To compile thirdparty from source, please pass `BUILD_BUNDLED=ON` to `make`: +- **Method One: Download Pre-Compiled Thirdparty:** Command is `make && make install`. It downloads necessary prebuild libraries from [hybridsql-assert](https://github.com/4paradigm/hybridsql-asserts/releases) and [zetasql](https://github.com/4paradigm/zetasql/releases). Currently it supports CentOS 7, Ubuntu 20.04 and macOS. +- **Method Two: Compile Thirdparty from Source:** This is the suggested way if the host system is not in the supported list for pre-compiled thirdparty (CentOS 7, Ubuntu 20.04 and macOS). Note that when compiling thirdparty for the first time requires extra time to finish, approximately 1 hour on a 2 core & 8 GB machine. To compile thirdparty from source, please pass `BUILD_BUNDLED=ON` to `make`: ```bash make BUILD_BUNDLED=ON make install ``` -All of the three methods above will install OpenMLDB binaries into `${PROJECT_ROOT}/openmldb` by default, you may tweak the installation directory with the option `CMAKE_INSTALL_PREFIX` (refer the following section [Extra options for `make`](#24-extra-options-for-make)). +All of the three methods above will install OpenMLDB binaries into `${PROJECT_ROOT}/openmldb` by default, you may tweak the installation directory with the option `CMAKE_INSTALL_PREFIX` (refer to the following section [Extra Parameters for `make`](#extra-parameters-for-make) ). -### 2.4. Extra Options for `make` +### Extra Parameters for `make` -You can customize the `make` behavior by passing following arguments, e.g., changing the build mode to `Debug` instead of `Release`: +You can customize the `make` behavior by passing the following arguments, e.g., changing the build mode to `Debug` instead of `Release`: ```bash make CMAKE_BUILD_TYPE=Debug @@ -132,10 +127,14 @@ make CMAKE_BUILD_TYPE=Debug Default: ON -- OPENMLDB_BUILD_TARGET: If you only want to build some targets, not all, e.g. only build a test `ddl_parser_test`, you can set it to `ddl_parser_test`. Multiple targets may be given, separated by spaces. It can reduce the build time, reduce the build output, save the storage space. +- OPENMLDB_BUILD_TARGET: If you only want to build some targets, not all, e.g. only build a test `ddl_parser_test`, you can set it to `ddl_parser_test`. Multiple targets may be given, separated by spaces. It can reduce build time, reduce build output, and save storage space. Default: all +- THIRD_PARTY_CMAKE_FLAGS: You can use this to configure additional parameters when compiling third-party dependencies. For instance, to specify concurrent compilation for each third-party project, you can set` THIRD_PARTY_CMAKE_FLAGS` to `-DMAKEOPTS=-j8`. Please note that NPROC does not affect third-party compilation; multiple third-party projects will be executed sequentially. + + Default: '' + ### Build Java SDK with Multi Processes ``` @@ -144,7 +143,7 @@ make SQL_JAVASDK_ENABLE=ON NPROC=4 The built jar packages are in the `target` path of each submodule. If you want to use the jar packages built by yourself, please DO NOT add them by systemPath(may get `ClassNotFoundException` about Protobuf and so on, requires a little work in compile and runtime phase). The better way is, use `mvn install -DskipTests=true -Dscalatest.skip=true -Dwagon.skip=true -Dmaven.test.skip=true -Dgpg.skip` to install them in local m2 repository, your project will use them. -## 3. Optimized Spark Distribution for OpenMLDB +## Optimized Spark Distribution for OpenMLDB [OpenMLDB Spark Distribution](https://github.com/4paradigm/spark) is the fork of [Apache Spark](https://github.com/apache/spark). It adopts specific optimization techniques for OpenMLDB. It provides native `LastJoin` implementation and achieves 10x~100x performance improvement compared with the original Spark distribution. The Java/Scala/Python/SQL APIs of the OpenMLDB Spark distribution are fully compatible with the standard Spark distribution. @@ -171,3 +170,55 @@ export SPARK_HOME=`pwd` ``` 3. Now you are all set to run OpenMLDB by enjoying the performance speedup from this optimized Spark distribution. + + +## Build for Other OS +As previously mentioned, if you want to run OpenMLDB or the SDK on a different OS, you will need to compile from the source code. We provide quick compilation solutions for several operating systems. For other OS, you'll need to perform source code compilation on your own. + +### Centos 6 or other glibc Linux OS +#### Local Compilation +To compile a version compatible with CentOS 6, you can use Docker and the `steps/centos6_build.sh` script. As shown below, we use the current directory as the mount directory and place the compilation output locally. + +```bash +git clone https://github.com/4paradigm/OpenMLDB.git +cd OpenMLDB +docker run -it -v`pwd`:/root/OpenMLDB ghcr.io/4paradigm/centos6_gcc7_hybridsql bash +``` +Execute the compilation script within the container, and the output will be in the "build" directory. If there are failures while downloading `bazel` or `icu4c` during compilation, you can use the image sources provided by OpenMLDB by configuring the environment variable `OPENMLDB_SOURCE=true`. Various environment variables that can be used with "make" will also work, as shown below. + +```bash +cd OpenMLDB +bash steps/centos6_build.sh +# THIRD_PARTY_CMAKE_FLAGS=-DMAKEOPTS=-j8 bash steps/centos6_build.sh # run fast when build single project +# OPENMLDB_SOURCE=true bash steps/centos6_build.sh +# SQL_JAVASDK_ENABLE=ON SQL_PYSDK_ENABLE=ON NPROC=8 bash steps/centos6_build.sh # NPROC will build openmldb in parallel, thirdparty should use THIRD_PARTY_CMAKE_FLAGS +``` + +For a local compilation with a 2.20GHz CPU, SSD hard drive, and 32 threads to build both third-party libraries and the OpenMLDB core, the approximate timeframes are as follows: +`THIRD_PARTY_CMAKE_FLAGS=-DMAKEOPTS=-j32 SQL_JAVASDK_ENABLE=ON SQL_PYSDK_ENABLE=ON NPROC=32 bash steps/centos6_build.sh` +- third-party (excluding source code download time): Approximately 40 minutes: + - Zetasql patch: 13 minutes + - Compilation of all third-party dependencies: 30 minutes +- OpenMLDB core, including Python and Java native components: Approximately 12 minutes + +Please note that these times can vary depending on your specific hardware and system performance. The provided compilation commands and environment variables are optimized for multi-threaded compilation, which can significantly reduce build times. + +#### Cloud Compilation + +After forking the OpenMLDB repository, you can trigger the `Other OS Build` workflow in `Actions`, and the output will be available in the `Actions` `Artifacts`. Here's how to configure the workflow: + +- Do not change the `Use workflow from` setting to a specific tag; it can be another branch. +- Choose the desired `OS name`, which in this case is `centos6`. +- If you are not compiling the main branch, provide the name of the branch, tag (e.g., v0.8.2), or SHA you want to compile in the `The branch, tag, or SHA to checkout, otherwise use the branch` field. +- The compilation output will be accessible in "runs", as shown in an example [here](https://github.com/4paradigm/OpenMLDB/actions/runs/6044951902). + - The workflow will definitely produce the OpenMLDB binary file. + - If you don't need the Java or Python SDK, you can configure `java sdk enable` or `python sdk enable` to be "OFF" to save compilation time. + +Please note that this compilation process involves building third-party dependencies from source code, and it may take a while to complete due to limited resources. The approximate time for this process is around 3 hours and 5 minutes (2 hours for third-party dependencies and 1 hour for OpenMLDB). However, the workflow caches the compilation output for third-party dependencies, so the second compilation will be much faster, taking approximately 1 hour and 15 minutes for OpenMLDB. + +### Macos 10.15, 11 + +MacOS doesn't require compiling third-party dependencies from source code, so compilation is relatively faster, taking about 1 hour and 15 minutes. Local compilation is similar to the steps outlined in the [Detailed Instructions for Build](#detailed-instructions-for-build) and does not require compiling third-party dependencies (`BUILD_BUNDLED=OFF`). For cloud compilation on macOS, trigger the `Other OS Build` workflow in `Actions` with the specified macOS version (`os name` as `macos10` or `macos11`). You can also disable Java or Python SDK compilation if they are not needed, by setting `java sdk enable` or `python sdk enable` to `OFF`. + + + diff --git a/docs/en/quickstart/sdk/cpp_sdk.md b/docs/en/quickstart/sdk/cpp_sdk.md deleted file mode 100644 index 59f4a284a63..00000000000 --- a/docs/en/quickstart/sdk/cpp_sdk.md +++ /dev/null @@ -1,117 +0,0 @@ -# C++ SDK - -## C++SDK package compilation and installation - -```plain -git clone git@github.com:4paradigm/OpenMLDB.git -cd OpenMLDB -make && make install -``` - -## Write user code - -The following code demonstrates the basic use of C++ SDK. openmldb_api.h and sdk/result_set.h is the header file that must be included. - -```c++ -#include -#include -#include - -#include "openmldb_api.h" -#include "sdk/result_set.h" - -int main() -{ - //Create and initialize the OpenmldbHandler object - //Stand-alone version: parameter (ip, port), such as: OpenmldbHandler handler ("127.0.0.1", 6527); - //Cluster version: parameters (ip: port, path), such as: OpenmldbHandler handler ("127.0.0.1:6527", "/openmldb"); - //Take the stand-alone version as an example. - OpenmldbHandler handler("127.0.0.1", 6527); - - // Define database name - std::time_t t = std::time(0); - std::string db = "test_db" + std::to_string(t); - - // Create SQL statement and database - std::string sql = "create database " + db + ";"; - // Execute the SQL statement. The execute() function returns the bool value. A value of true indicates correct execution - std::cout << execute(handler, sql); - - // Create SQL statement and use database - sql = "use " + db + ";"; - std::cout << execute(handler, sql); - - // Create SQL statement and create table - sql = "create table test_table (" - "col1 string, col2 bigint," - "index(key=col1, ts=col2));"; - std::cout << execute(handler, sql); - - // Create SQL statements and insert rows into the table - sql = "insert test_table values(\"hello\", 1)"; - std::cout << execute(handler, sql); - sql = "insert test_table values(\"Hi~\", 2)"; - std::cout << execute(handler, sql); - - // Basic mode - sql = "select * from test_table;"; - std::cout << execute(handler, sql); - - // Get the latest SQL execution result - auto res = get_resultset(); - // Output SQL execution results - print_resultset(res); - // The output in this example should be: - // +-------+--------+ - // | col1 | col2 | - // +-------+--------+ - // | hello | 1 | - // | Hi~ | 2 | - // +-------+---------+ - - - - // Band-parameter mode - //The position of the parameters to be filled in the SQL statement is set to "?" to express - sql = "select * from test_table where col1 = ? ;"; - // Create a ParameterRow object for filling parameters - ParameterRow para(&handler); - // Fill in parameters - para << "Hi~"; - // Execute SQL statement execute_parameterized() function returns the bool value. A value of true indicates correct execution - execute_parameterized(handler, db, sql, para); - res = get_resultset(); - print_resultset(res); - // The output in this example should be: - // +------+--------+ - // | col1 | col2 | - // +------+-------+ - // | Hi~ | 2 | - // +------+--------+ - - - // Request mode - sql = "select col1, sum(col2) over w as w_col2_sum from test_table " - "window w as (partition by test_table.col1 order by test_table.col2 " - "rows between 2 preceding and current row);"; - RequestRow req(&handler, db, sql); - req << "Hi~" << 3l; - execute_request(req); - res = get_resultset(); - print_resultset(res); - // The output in this example should be: - // +------+--------------------+ - // | col1 | w_col2_sum | - // +------+--------------------+ - // | Hi~ | 5 | - // +------+--------------------+ -} -``` - -## Compile and run - -```plain -gcc .cxx -o -lstdc++ -std=c++17 -I/include -L/lib -lopenmldbsdk -lpthread -./ -``` - diff --git a/docs/en/quickstart/sdk/cxx_sdk.md b/docs/en/quickstart/sdk/cxx_sdk.md new file mode 100644 index 00000000000..77041df9b52 --- /dev/null +++ b/docs/en/quickstart/sdk/cxx_sdk.md @@ -0,0 +1,138 @@ +# [Alpha] C++ SDK +```plain +The current functionality support of the C++ SDK is not yet complete. It is currently only recommended for development, testing, or specific use cases. It is not recommended for use in a production environment. For production use, we recommend using the Java SDK, which has the most comprehensive feature coverage and has undergone extensive testing for both functionality and performance. +``` +## C++ SDK Compilation and Installation +```plain +The C++ SDK static library is only supported on Linux systems and is not included in the standard release. If you need to use the C++ SDK library, you should compile the source code and enable the compilation option `INSTALL_CXXSDK=ON`. +``` +To compile, you need to meet the [hardware requirements](../../deploy/compile.md#hardware-requirements) and install the necessary [dependencies](../../deploy/compile.md#dependencies). +```plain +git clone git@github.com:4paradigm/OpenMLDB.git +cd OpenMLDB +make INSTALL_CXXSDK=ON && make install +``` + +## User Code + +The following code demonstrates the basic use of C++ SDK. `openmldb_api.h` and `sdk/result_set.h` is the header file that must be included. + +```c++ +#include +#include +#include + +#include "openmldb_api.h" +#include "sdk/result_set.h" + +int main() +{ + //Create and initialize the OpenmldbHandler object + //Stand-alone version: parameter (ip, port), such as: OpenmldbHandler handler ("127.0.0.1", 6527); + //Cluster version: parameters (ip: port, path), such as: OpenmldbHandler handler ("127.0.0.1:6527", "/openmldb"); + //Take the stand-alone version as an example. + OpenmldbHandler handler("127.0.0.1", 6527); + + // Define database name + std::time_t t = std::time(0); + std::string db = "test_db" + std::to_string(t); + + // Create SQL statement and database + std::string sql = "create database " + db + ";"; + // Execute the SQL statement. The execute() function returns bool. true indicates correct execution + std::cout << execute(handler, sql); + + // Create SQL statement to use database + sql = "use " + db + ";"; + std::cout << execute(handler, sql); + + // Create SQL statement to create table + sql = "create table test_table (" + "col1 string, col2 bigint," + "index(key=col1, ts=col2));"; + std::cout << execute(handler, sql); + + // Create SQL statements to insert rows into the table + sql = "insert test_table values(\"hello\", 1)"; + std::cout << execute(handler, sql); + sql = "insert test_table values(\"Hi~\", 2)"; + std::cout << execute(handler, sql); + + // Basic mode + sql = "select * from test_table;"; + std::cout << execute(handler, sql); + + // Get the latest SQL execution result + auto res = get_resultset(); + // Output SQL execution results + print_resultset(res); + // The output in this example should be: + // +-------+--------+ + // | col1 | col2 | + // +-------+--------+ + // | hello | 1 | + // | Hi~ | 2 | + // +-------+---------+ + + + + // Parameter mode + //The parameters to be filled in the SQL statement is marked as "?" + sql = "select * from test_table where col1 = ? ;"; + // Create a ParameterRow object for filling parameters + ParameterRow para(&handler); + // Fill in parameters + para << "Hi~"; + // Execute SQL statement, execute_parameterized() function returns bool. true indicates correct execution + execute_parameterized(handler, db, sql, para); + res = get_resultset(); + print_resultset(res); + // The output in this example should be: + // +------+--------+ + // | col1 | col2 | + // +------+-------+ + // | Hi~ | 2 | + // +------+--------+ + + + // Request mode + sql = "select col1, sum(col2) over w as w_col2_sum from test_table " + "window w as (partition by test_table.col1 order by test_table.col2 " + "rows between 2 preceding and current row);"; + RequestRow req(&handler, db, sql); + req << "Hi~" << 3l; + execute_request(req); + res = get_resultset(); + print_resultset(res); + // The output in this example should be: + // +------+--------------------+ + // | col1 | w_col2_sum | + // +------+--------------------+ + // | Hi~ | 5 | + // +------+--------------------+ +} +``` +## Multi-Thread +The `OpenMLDBHandler` object is not thread-safe, but the internal connection to the `SQLClusterRouter` can be used multi-threaded. You can achieve multi-threading by sharing the Router within the Handler object, which is more efficient than creating multiple independent Handler instances (each with its independent Router). However, in a multi-threaded mode, you should be cautious because interfaces without db depend on the Router's internal cache of used db, which might be modified by other threads. It's advisable to use the db interface in such cases. The following code demonstrates a method for multi-threaded usage: + +```c++ +OpenmldbHandler h1("127.0.0.1:2181", "/openmldb"); +OpenmldbHandler h2(h1.get_router()); + +std::thread t1([&](){ h1.execute("show components;"); print_resultset(h1.get_resultset());}); + +std::thread t2([&](){ h2.execute("show table status;"); print_resultset(h2.get_resultset());}); + +t1.join(); +t2.join(); +``` + +## Compile and run +You can refer to [Makefile](https://github.com/4paradigm/OpenMLDB/blob/main/demo/cxx_quickstart/Makefile) or use the command below to compile and run the sample code. + +```bash +gcc .cxx -o -lstdc++ -std=c++17 -I/include -L/lib -lopenmldbsdk -lpthread -lm -ldl -lstdc++fs + +./ +``` + diff --git a/docs/en/quickstart/sdk/go_sdk.md b/docs/en/quickstart/sdk/go_sdk.md index c30cbb2e502..4c07120a932 100644 --- a/docs/en/quickstart/sdk/go_sdk.md +++ b/docs/en/quickstart/sdk/go_sdk.md @@ -1,12 +1,14 @@ -# Go SDK - +# [Alpha] Go SDK +```plain +The current functionality support of the Go SDK is not yet complete. It is currently only recommended for development, testing, or specific use cases. It is not recommended for use in a production environment. For production use, we recommend using the Java SDK, which has the most comprehensive feature coverage and has undergone extensive testing for both functionality and performance. +``` ## Requirement - OpenMLDB version: >= v0.6.2 -- Deploy and run APIServer (refer to [APIServer deployment](https://openmldb.ai/docs/zh/main/deploy/install_deploy.html#apiserver) document) +- Deploy and run APIServer (refer to [APIServer deployment](../../main/deploy/install_deploy.html#apiserver) document) -## Go SDK package installment +## Go SDK installation ```bash go get github.com/4paradigm/OpenMLDB/go @@ -76,7 +78,7 @@ import ( "context" "database/sql" - // 加载 OpenMLDB SDK + // Load OpenMLDB SDK _ "github.com/4paradigm/OpenMLDB/go" ) diff --git a/docs/en/quickstart/sdk/index.rst b/docs/en/quickstart/sdk/index.rst index 2eec974bee0..d932b7f5442 100644 --- a/docs/en/quickstart/sdk/index.rst +++ b/docs/en/quickstart/sdk/index.rst @@ -7,6 +7,6 @@ SDK java_sdk python_sdk - rest_api go_sdk - cpp_sdk + cxx_sdk + rest_api \ No newline at end of file diff --git a/docs/en/quickstart/sdk/java_sdk.md b/docs/en/quickstart/sdk/java_sdk.md index a74f4c98f3c..489dea47282 100644 --- a/docs/en/quickstart/sdk/java_sdk.md +++ b/docs/en/quickstart/sdk/java_sdk.md @@ -1,8 +1,10 @@ # Java SDK -## Java SDK package installation +In Java SDK, the default execution mode for JDBC Statements is online, while the default execution mode for SqlClusterExecutor is offline. Please keep this in mind. -- Installing Java SDK package on Linux +## Java SDK Installation + +- Install Java SDK on Linux Configure the maven pom: @@ -19,7 +21,7 @@ ``` -- Installing Java SDK package on Mac +- Install Java SDK on Mac Configure the maven pom @@ -36,16 +38,14 @@ ``` -Note: Since the openmldb-native package contains the C++ static library compiled for OpenMLDB, it is defaults to the Linux static library. For macOS, the version of openmldb-native should be changed to `0.8.3-macos`, while the version of openmldb-jdbc should remain unchanged. - -The macOS version of openmldb-native only supports macOS 12. To run it on macOS 11 or macOS 10.15, the openmldb-native package needs to be compiled from source code on the corresponding OS. For detailed compilation methods, please refer to [Concurrent Compilation of Java SDK](https://openmldb.ai/docs/zh/main/deploy/compile.html#java-sdk). - -To connect to the OpenMLDB service using the Java SDK, you can use JDBC (recommended) or connect directly through SqlClusterExecutor. The following will demonstrate both connection methods in order. +Note: Since the openmldb-native package contains the C++ static library compiled for OpenMLDB, it defaults to the Linux static library. For macOS, the version of openmldb-native should be changed to `0.8.3-macos`, while the version of openmldb-jdbc remains unchanged. -## JDBC method +The macOS version of openmldb-native only supports macOS 12. To run it on macOS 11 or macOS 10.15, the openmldb-native package needs to be compiled from the source code on the corresponding OS. For detailed compilation methods, please refer to [Java SDK](../../deploy/compile.md#Build-java-sdk-with-multi-processes). +When using a self-compiled openmldb-native package, it is recommended to install it into your local Maven repository using `mvn install`. After that, you can reference it in your project's pom.xml file. It's not advisable to reference it using `scope=system`. -The connection method using JDBC is as follows: +To connect to the OpenMLDB service using the Java SDK, you can use JDBC (recommended) or connect directly through SqlClusterExecutor. The following will demonstrate both connection methods. +## Connection with JDBC ```java Class.forName("com._4paradigm.openmldb.jdbc.SQLDriver"); // No database in jdbcUrl @@ -58,10 +58,10 @@ Connection connection1 = DriverManager.getConnection("jdbc:openmldb:///test_db?z The database specified in the Connection address must exist when creating the connection. ```{caution} -he default execution mode for JDBC Connection is `online`. +The default execution mode for JDBC Connection is `online`. ``` -### Usage overview +### Statement All SQL commands can be executed using `Statement`, both in online and offline modes. To switch between offline and online modes, use command `SET @@execute_mode='...';``. For example: @@ -77,17 +77,22 @@ res = stmt.executeQuery("SELECT * from t1"); // For online mode, select or execu The `LOAD DATA` command is an asynchronous command, and the returned ResultSet contains information such as the job ID and state. You can execute `show job ` to check if the job has been completed. Note that the ResultSet needs to execute `next()` method to move the cursor to the first row of data. -It is also possible to change it to a synchronous command: +In offline mode, the default behavior is asynchronous execution, and the ResultSet returned is a Job Info. You can change this behavior to synchronous execution using `SET @@sync_job=true;`. However, please note that the ResultSet returned can vary depending on the specific SQL command. For more details, please refer to the [Function Boundary](../function_boundary.md). Synchronous execution is recommended when using `LOAD DATA` or `SELECT INTO` commands. -```SQL -SET @@sync_job=true; -``` +If synchronous commands are timing out, you can adjust the configuration as described in the [Offline Command Configuration](../../openmldb_sql/ddl/SET_STATEMENT.md). -If the actual execution time of the synchronous command exceeds the default maximum idle wait time of 0.5 hours, please [adjust the configuration](https://openmldb.ai/docs/zh/main/openmldb_sql/ddl/SET_STATEMENT.html#id4). +```{caution} +When you execute `SET @@execute_mode='offline'` on a `Statement`, it not only affects the current `Statement` but also impacts all `Statement` objects created, both existing and yet to be created, within the same `Connection`. Therefore, it is not advisable to create multiple `Statement` objects and expect them to execute in different modes. If you need to execute SQL in different modes, it's recommended to create multiple `Connection`. +``` ### PreparedStatement -`PreparedStatement` supports `SELECT`, `INSERT`, and `DELETE` operations. Note that `INSERT` only supports online insertion. +`PreparedStatement` supports `SELECT`, `INSERT`, and `DELETE`. +```{warning} +Any `PreparedStatement` executes only in the **online mode** and is not affected by the state before the `PreparedStatement` is created. `PreparedStatement` does not support switching to the offline mode. If you need to execute SQL in the offline mode, you can use a `Statement`. + +There are three types of `PreparedStatement` created by a `Connection`, which correspond to `getPreparedStatement`, `getInsertPreparedStmt`, and `getDeletePreparedStm`t in SqlClusterExecutor. +``` ```java PreparedStatement selectStatement = connection.prepareStatement("SELECT * FROM t1 WHERE id=?"); @@ -95,9 +100,10 @@ PreparedStatement insertStatement = connection.prepareStatement("INSERT INTO t1 PreparedStatement insertStatement = connection.prepareStatement("DELETE FROM t1 WHERE id=?"); ``` -## SqlClusterExecutor method +## SqlClusterExecutor +`SqlClusterExecutor` is the most comprehensive Java SDK connection method. It not only provides the basic CRUD operations that you can use with JDBC but also offers additional features like request modes and more. -### Creating a SqlClusterExecutor +### Create a SqlClusterExecutor First, configure the OpenMLDB connection parameters. @@ -108,14 +114,13 @@ option.setZkPath("/openmldb"); option.setSessionTimeout(10000); option.setRequestTimeout(60000); ``` - Then, use SdkOption to create the Executor. ```java sqlExecutor = new SqlClusterExecutor(option); ``` -`SqlClusterExecutor` execution of SQL operations is thread-safe, and in actual environments, a single `SqlClusterExecutor` can be created. However, since the execution mode (execute_mode) is an internal variable of `SqlClusterExecutor`, if you want to execute an offline command and an online command at the same time, unexpected results may occur. In this case, please use multiple `SqlClusterExecutors`. +`SqlClusterExecutor` execution of SQL operations is thread-safe, and in actual environments, a single `SqlClusterExecutor` can be created. However, since the execution mode (`execute_mode`) is an internal variable of `SqlClusterExecutor`, if you want to execute an offline command and an online command at the same time, unexpected results may occur. In this case, please use multiple `SqlClusterExecutors`. ```{caution} The default execution mode for SqlClusterExecutor is offline, which is different from the default mode for JDBC. @@ -158,7 +163,7 @@ try { } ``` -#### Executing batch SQL queries with Statement +#### Execute Batch SQL Queries with Statement Use the `Statement::execute` interface to execute batch SQL queries: @@ -200,15 +205,15 @@ try { ### PreparedStatement -`SqlClusterExecutor` can also obtain `PreparedStatement`, but you need to specify which type of `PreparedStatement` to obtain. For example, when using InsertPreparedStmt for insertion operations, there are three ways to do it. +`SqlClusterExecutor` can also obtain `PreparedStatement`, but you need to specify which type of `PreparedStatement` to obtain. For example, when using `InsertPreparedStmt` for insertion operations, there are three ways to do it. ```{note} -Insert operation only supports online mode and is not affected by execution mode. The data will always be inserted into the online database. +Any `PreparedStatement` executes exclusively in the **online mode** and is not influenced by the state of the `SqlClusterExecutor` at the time of its creation. `PreparedStatement` does not support switching to the offline mode. If you need to execute SQL in the offline mode, you can use a `Statement`. ``` #### Common Insert -1. Use the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSql)` method to get the InsertPrepareStatement. +1. Use the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSql)` method to get the `InsertPrepareStatement`. 2. Use the `PreparedStatement::execute()` method to execute the insert statement. ```java @@ -232,14 +237,14 @@ try { } ``` -#### Insert With Placeholder +#### Insert with Placeholder -1. Get InsertPrepareStatement by calling `SqlClusterExecutor::getInsertPreparedStmt(db, insertSqlWithPlaceHolder)` interface. -2. Use `PreparedStatement::setType(index, value)` interface to fill in data to the InsertPrepareStatement. Note that the index starts from 1. +1. Get `InsertPrepareStatement` by calling `SqlClusterExecutor::getInsertPreparedStmt(db, insertSqlWithPlaceHolder)` interface. +2. Use `PreparedStatement::setType(index, value)` interface to fill in data to the `InsertPrepareStatement`. Note that the index starts from 1. 3. Use `PreparedStatement::execute()` interface to execute the insert statement. ```{note} -When the conditions of the PreparedStatement are the same, you can repeatedly call the set method of the same object to fill in data before executing execute(). There is no need to create a new PreparedStatement object. +When the conditions of the `PreparedStatement` are the same, you can repeatedly call the set method of the same object to fill in data before executing `execute`. There is no need to create a new `PreparedStatement` object. ``` ```java @@ -266,13 +271,13 @@ try { ``` ```{note} -After execute, the cached data will be cleared and it is not possible to retry execute. +After `execute`, the cached data will be cleared and it is not possible to rerun `execute`. ``` -#### Batch Insert With Placeholder +#### Batch Insert with Placeholder -1. To use batch insert, first obtain the InsertPrepareStatement using the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSqlWithPlaceHolder)` interface. -2. Then use the `PreparedStatement::setType(index, value)` interface to fill data into the InsertPrepareStatement. +1. To use batch insert, first obtain the `InsertPrepareStatement` using the `SqlClusterExecutor::getInsertPreparedStmt(db, insertSqlWithPlaceHolder)` interface. +2. Then use the `PreparedStatement::setType(index, value)` interface to fill data into the `InsertPrepareStatement`. 3. Use the `PreparedStatement::addBatch()` interface to complete filling for one row. 4. Continue to use `setType(index, value)` and `addBatch()` to fill multiple rows. 5. Use the `PreparedStatement::executeBatch()` interface to complete the batch insertion. @@ -305,12 +310,12 @@ try { ``` ```{note} -After executeBatch(), all cached data will be cleared and it's not possible to retry executeBatch(). +After `executeBatch`, all cached data will be cleared and it's not possible to rerun `executeBatch`. ``` -### Execute SQL request query +### Execute SQL Query -`RequestPreparedStmt` is a unique query mode (not supported by JDBC). This mode requires both the selectSql and a request data, so you need to provide the SQL and set the request data using setType when calling `getRequestPreparedStmt`. +`RequestPreparedStmt` is a unique query mode (not supported by JDBC). This mode requires both the selectSql and a request data, so you need to provide the SQL and set the request data using `setType` when calling `getRequestPreparedStmt`. There are three steps to execute a SQL request query: @@ -359,7 +364,7 @@ try { Assert.assertEquals(resultSet.getInt(2), 24); Assert.assertEquals(resultSet.getLong(3), 34); - // The return result set of the ordinary request query contains only one row of results. Therefore, the result of the second call to resultSet. next() is false + // The return result set of the ordinary request query contains only one row of results. Therefore, the result of the second call to resultSet.next() is false Assert.assertFalse(resultSet.next()); } catch (SQLException e) { @@ -368,7 +373,7 @@ try { } finally { try { if (resultSet != null) { - // result用完之后需要close + // close result resultSet.close(); } if (pstmt != null) { @@ -379,16 +384,82 @@ try { } } ``` +### Execute Deployment +To execute a deployment, you can use the `SqlClusterExecutor::getCallablePreparedStmt(db, deploymentName)` interface to obtain a `CallablePreparedStatement`. In contrast to the SQL request-based queries mentioned earlier, deployments are already online on the server, which makes them faster compared to SQL request-based queries. + +The process of using a deployment consists of two steps: +- Online Deployment +```java +// Deploy online (use selectSql). In a real production environment, deployments are typically already online and operational. +java.sql.Statement state = sqlExecutor.getStatement(); +try { + String selectSql = String.format("SELECT c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM %s WINDOW w1 AS " + + "(PARTITION BY %s.c1 ORDER BY %s.c7 ROWS_RANGE BETWEEN 2d PRECEDING AND CURRENT ROW);", table, + table, table); + // Deploy + String deploySql = String.format("DEPLOY %s OPTIONS(RANGE_BIAS='inf', ROWS_BIAS='inf') %s", deploymentName, selectSql); + // set return null rs, don't check the returned value, it's false + state.execute(deploySql); +} catch (Exception e) { + e.printStackTrace(); +} +``` +- Execute Deployment +When executing a deployment, recreating a `CallablePreparedStmt` can be time-consuming. It is recommended to reuse the `CallablePreparedStmt` whenever possible. The `executeQuery()` method will automatically clear the request row cache for `setXX` requests. + +```java +// Execute Deployment +PreparedStatement pstmt = null; +ResultSet resultSet = null; +try { + pstmt = sqlExecutor.getCallablePreparedStmt(db, deploymentName); + // Obtain preparedstatement with name + // pstmt = sqlExecutor.getCallablePreparedStmt(db, deploymentName); + ResultSetMetaData metaData = pstmt.getMetaData(); + // Execute request mode requires setting query data in RequestPreparedStatement + setData(pstmt, metaData); + // executeQuery will execute select sql, and put result in resultSet + resultSet = pstmt.executeQuery(); -### Delete all data of a key under the specified index + Assert.assertTrue(resultSet.next()); + Assert.assertEquals(resultSet.getMetaData().getColumnCount(), 3); + Assert.assertEquals(resultSet.getString(1), "bb"); + Assert.assertEquals(resultSet.getInt(2), 24); + Assert.assertEquals(resultSet.getLong(3), 34); + Assert.assertFalse(resultSet.next()); + + // reuse way + for (int i = 0; i < 5; i++) { + setData(pstmt, metaData); + pstmt.executeQuery(); + // skip result check + } +} catch (SQLException e) { + e.printStackTrace(); + Assert.fail(); +} finally { + try { + if (resultSet != null) { + // close result + resultSet.close(); + } + if (pstmt != null) { + pstmt.close(); + } + } catch (SQLException throwables) { + throwables.printStackTrace(); + } +} +``` + +### Delete All Data of a Key under the Specified Index There are two ways to delete data through the Java SDK: - Execute delete SQL directly - - Use delete PreparedStatement -Note that this can only delete data under one index, not all indexes. Refer to [DELETE function boundary](https://openmldb.ai/docs/zh/main/quickstart/function_boundary.html#delete) for details. +Note that this can only delete data under one index, not all indexes. Refer to [DELETE function boundary](../function_boundary.md#delete) for details. ```java java.sql.Statement state = router.getStatement(); @@ -412,7 +483,7 @@ try { } ``` -### A complete example of using SqlClusterExecutor +### A Complete Example of SqlClusterExecutor Refer to the [Java quickstart demo](https://github.com/4paradigm/OpenMLDB/tree/main/demo/java_quickstart/demo). If it is used on macOS, please use openmldb-native of macOS version and increase the dependency of openmldb-native. @@ -427,9 +498,9 @@ java -cp target/demo-1.0-SNAPSHOT.jar com.openmldb.demo.App You must fill in `zkCluster` and `zkPath` (set method or the configuration `foo=bar` after `?` in JDBC). -### Optional configuration +### Optional Configuration -| Optional configuration | Description | +| Optional Configuration | Description | | ---------------------- | ------------------------------------------------------------ | | enableDebug | The default is false. Enable the debug log of hybridse (note that it is not the global debug log). You can view more logs of sql compilation and operation. However, not all of these logs are collected by the client. You need to view the tablet server logs. | | requestTimeout | The default is 60000 ms. This timeout is the rpc timeout sent by the client, except for those sent to the taskmanager (the rpc timeout of the job is controlled by the variable `job_timeout`). | @@ -441,16 +512,18 @@ You must fill in `zkCluster` and `zkPath` (set method or the configuration `foo= | zkLogFile | The default is empty, which is printed to stdout. | | sparkConfPath | The default is empty. You can change the spark conf used by the job through this configuration without configuring the taskmanager to restart. | -## SQL verification +## SQL Validation -The Java client supports the correct verification of SQL to verify whether it is executable. It is divided into batch and request modes. +The Java client supports the verification of SQL to verify whether it is executable. It is divided into batch and request modes. -- `ValidateSQLInBatch` can verify whether SQL can be executed at the offline end. +- `ValidateSQLInBatch` can verify whether SQL can be executed offline. - `ValidateSQLInRequest` can verify whether SQL can be deployed online. -Both interfaces need to go through all table schemas required by SQL. Currently, only single db is supported. Please do not use `db.table` format in SQL statements. +Both interfaces require providing all the table schemas required by the SQL and support multiple databases. For backward compatibility, it's allowed not to specify the db (current database in use) in the parameters. In such cases, it's equivalent to using the first db listed in use schema. It's important to ensure that the `` format tables are from the first db, which doesn't affect SQL statements in the `.
    ` format. + +For example, verify SQL `select count (c1) over w1 from t3 window w1 as (partition by c1 order by c2 rows between unbounded preceding and current row);`, In addition to this statement, you need to go through in the schema of table `t3` as the second parameter schemaMaps. The format is Map, key is the name of the db, and value is all the table schemas (maps) of each db. In fact, only a single db is supported, so there is usually only one db here, as shown in db3 below. The table schema map key under db is table name, and the value is `com._ 4paradigm.openmldb.sdk.Schema`, consisting of the name and type of each column. -For example, verify SQL `select count (c1) over w1 from t3 window w1 as (partition by c1 order by c2 rows between unbounded preceding and current row);`, In addition to this statement, you need to go through in the schema of table `t3` as the second parameter schemaMaps. The format is Map, key is the name of the db, and value is all the table schemas (maps) of each db. In fact, only a single db is supported, so there is usually only one db here, as shown in db3 below. The table schema map key under db is table name, and the value is com._ 4paradigm.openmldb.sdk.Schema, consisting of the name and type of each column. +The return result is a `List`. If the validation is successful, it returns an empty list. If the validation fails, it returns a list of error messages, such as `[error_msg, error_trace]`. ```java Map> schemaMaps = new HashMap<>(); @@ -461,5 +534,66 @@ schemaMaps.put("db3", dbSchema); List ret = SqlClusterExecutor.validateSQLInRequest("select count(c1) over w1 from t3 window "+ "w1 as(partition by c1 order by c2 rows between unbounded preceding and current row);", schemaMaps); Assert.assertEquals(ret.size(), 0); + +Map> schemaMaps = new HashMap<>(); +Map dbSchema = new HashMap<>(); +dbSchema = new HashMap<>(); +dbSchema.put("t3", new Schema(Arrays.asList(new Column("c1", Types.VARCHAR), new Column("c2", Types.BIGINT)))); +schemaMaps.put("db3", dbSchema); +// Can use parameter format of no db. Make sure that there's only one db in schemaMaps,and only
    format is used in sql. +// List ret = SqlClusterExecutor.validateSQLInRequest("select count(c1) over w1 from t3 window "+ +// "w1 as(partition by c1 order by c2 rows between unbounded preceding and current row);", schemaMaps); +List ret = SqlClusterExecutor.validateSQLInRequest("select count(c1) over w1 from t3 window "+ + "w1 as(partition by c1 order by c2 rows between unbounded preceding and current row);", "db3", schemaMaps); +Assert.assertEquals(ret.size(), 0); ``` +## DDL Generation + +The `public static List genDDL(String sql, Map> tableSchema)` method can help users generate table creation statements based on the SQL they want to deploy. It currently supports only a **single** database. The `sql` parameter should not be in the `.
    ` format. The `tableSchema` parameter should include the schemas of all tables that the SQL depends on. The format of `tableSchema` should be consistent with what was discussed earlier. Even if `tableSchema` contains multiple databases, the database information will be discarded, and all tables will be treated as if they belong to an unknown database. + +## SQL Output Schema + +The `public static Schema genOutputSchema(String sql, String usedDB, Map> tableSchema)` method allows you to obtain the Output Schema for SQL queries and supports multiple databases. If you specify the `usedDB`, you can use tables from that database within the SQL using the `
    ` format. For backward compatibility, there is also support for the` public static Schema genOutputSchema(String sql, Map> tableSchema)` method without specifying a database (usedDB). In this case, it is equivalent to using the first database listed as the used db. Therefore, you should ensure that tables in `
    ` format within the `SQ`L query are associated with this first database. + + +## SQL Table Lineage +The `public static List> getDependentTables(String sql, String usedDB, Map> tableSchema)` method allows you to retrieve all tables that the sql query depends on. Each `Pair` in the list corresponds to the database name and table name, with the first element being the primary table, and the rest `[1, end)` representing other dependent tables (excluding the primary table). If the input parameter `usedDB` is an empty string, it means the query is performed without specifying a database (use db) context, which is different from the compatibility rules mentioned earlier for methods like `genDDL`. + +## SQL Merge +The Java client supports merging multiple SQL statements and performs correctness validation in request mode using the `mergeSQL` interface. However, it's important to note that merging is only possible when all the input SQL statements have the same primary table. + +Input parameters: SQL group to be merged; the name of the current database being used; the join key(s) for the primary table (which can be multiple); the schema for all tables involved. + +For example, let's consider four SQL feature views: +``` +// Single-table direct feature +select c1 from main; +// Single-table aggregation feature +select sum(c1) over w1 of2 from main window w1 as (partition by c1 order by c2 rows between unbounded preceding and current row); +// Multi-table feature +select t1.c2 of4 from main last join t1 order by t1.c2 on main.c1==t1.c1; +// Multi-table aggregation feature +select sum(c2) over w1 from main window w1 as (union (select \"\" as id, * from t1) partition by c1 order by c2 rows between unbounded preceding and current row); +``` + +Since all of them have the same primary table, "main," they can be merged. The merging process is essentially a join operation. To perform this operation, you also need to specify a unique column in the "main" table that can be used to identify a unique row of data. For example, if the "id" column in the "main" table is not unique and there may be multiple rows with the same "id" values, you can use a combination of "id" and "c1" columns for the join. Similar to SQL validation, you would also provide a schema map for the tables involved in the merge. + + +```java +//To simplify the demonstration, we are using tables from a single database, so you only need to specify used db and table names if your SQL statements all use the
    format. you can leave the used database parameter as an empty string. If your SQL statements use the .
    format, you can leave the used db parameter as an empty string +String merged = SqlClusterExecutor.mergeSQL(sqls, "db", Arrays.asList("id", "c1"), schemaMaps); +``` + +The output is a single merged SQL statement, as shown below. The input SQL includes a total of four features, so the merged SQL will only output these four feature columns. (The join keys are automatically filtered.) + +``` +select `c1`, `of2`, `of4`, `sum(c2)over w1` from (select main.id as merge_id_0, c1 from main) as out0 last join (select main.id as merge_id_1, sum(c1) over w1 of2 from main window w1 as (partition by c1 order by c2 rows between unbounded preceding and current row)) as out1 on out0.merge_id_0 = out1.merge_id_1 last join (select main.id as merge_id_2, t1.c2 of4 from main last join t1 order by t1.c2 on main.c1==t1.c1) as out2 on out0.merge_id_0 = out2.merge_id_2 last join (select main.id as merge_id_3, sum(c2) over w1 from main window w1 as (union (select "" as id, * from t1) partition by c1 order by c2 rows between unbounded preceding and current row)) as out3 on out0.merge_id_0 = out3.merge_id_3; +``` + +```{note} +If you encounter an "Ambiguous column name" error during the merging process, it may be due to having the same column names in different feature groups. To resolve this, you should use aliases in your input SQL to distinguish between them. +``` + + + diff --git a/docs/en/quickstart/sdk/python_sdk.md b/docs/en/quickstart/sdk/python_sdk.md index 421f6b8ff93..6ae0e4705af 100644 --- a/docs/en/quickstart/sdk/python_sdk.md +++ b/docs/en/quickstart/sdk/python_sdk.md @@ -1,18 +1,20 @@ # Python SDK -## Python SDK package installation +The default execution mode is Online. -Execute the following command to install the Python SDK package: +## Python SDK Installation + +Execute the following command to install Python SDK: ```bash pip install openmldb ``` -## OpenMLDB DBAPI usage +## OpenMLDB DBAPI -This section demonstrates the basic use of the OpenMLDB DB API. +This section demonstrates the basic use of the OpenMLDB DB API. For all DBAPI interfaces, if an execution fails, it will raise a `DatabaseError` exception. Users can catch this exception and handle it as needed. The return value is a `Cursor`. For DDL SQL, you do not need to handle the return value. For other SQL statements, you can refer to the specific examples below for how to handle the return value. -### Create connection +### Create Connection Parameter `db_name` name must exist, and the database must be created before the connection is created. To continue, create a connection without a database and then use the database db through the `execute ("USE")` command. @@ -24,11 +26,11 @@ cursor = db.cursor() #### Configuration Details -Zk and zkPath configuration are required. +Zk and zkPath configurations are required. -The Python SDK can be used through OpenMLDB DBAPI/SQLAlchemy. The optional configurations are basically the same as those of the Java client. Please refer to the [Java SDK configuration](https://openmldb.ai/docs/zh/main/quickstart/sdk/java_sdk.html#sdk) for details. +The Python SDK can be used through OpenMLDB DBAPI/SQLAlchemy. The optional configurations are basically the same as those of the Java client. Please refer to the [Java SDK configuration](./java_sdk.md#sdk-configuration-details) for details. -### Create database +### Create Database Create database `db1`: @@ -37,7 +39,7 @@ cursor.execute("CREATE DATABASE db1") cursor.execute("USE db1") ``` -### Create table +### Create Table Create table `t1`: @@ -45,7 +47,7 @@ Create table `t1`: cursor.execute("CREATE TABLE t1 (col1 bigint, col2 date, col3 string, col4 string, col5 int, index(key=col3, ts=col1))") ``` -### Insert data into the table +### Insert Data into Table Insert one sentence of data into the table: @@ -53,7 +55,7 @@ Insert one sentence of data into the table: cursor.execute("INSERT INTO t1 VALUES(1000, '2020-12-25', 'guangdon', 'shenzhen', 1)") ``` -### Execute SQL query +### Execute SQL Query ```python result = cursor.execute("SELECT * FROM t1") @@ -62,15 +64,30 @@ print(result.fetchmany(10)) print(result.fetchall()) ``` -### SQL batch request query +### SQL Batch Query ```python -#In the Batch Request mode, the input parameters of the interface are“SQL”, “Common_Columns”, “Request_Columns” +#In the Batch Request mode, the input parameters of the interface are "SQL", "Common_Columns", "Request_Columns" result = cursor.batch_row_request("SELECT * FROM t1", ["col1","col2"], ({"col1": 2000, "col2": '2020-12-22', "col3": 'fujian', "col4":'xiamen', "col5": 2})) print(result.fetchone()) ``` +### Execute Deployment + +Please note that the execution of deployments is only supported by DBAPI, and there is no equivalent interface in OpenMLDB SQLAlchemy. Additionally, deployment execution supports single requests only and does not support batch requests. + +```python +cursor.execute("DEPLOY d1 SELECT col1 FROM t1") +# dict style +result = cursor.callproc("d1", {"col1": 1000, "col2": None, "col3": None, "col4": None, "col5": None}) +print(result.fetchall()) +# tuple style +result = cursor.callproc("d1", (1001, "2023-07-20", "abc", "def", 1)) +print(result.fetchall()) +# drop deployment before drop table +cursor.execute("DROP DEPLOYMENT d1") +``` -### Delete table +### Delete Table Delete table `t1`: @@ -78,7 +95,7 @@ Delete table `t1`: cursor.execute("DROP TABLE t1") ``` -### Delete database +### Delete Database Delete database `db1`: @@ -86,17 +103,17 @@ Delete database `db1`: cursor.execute("DROP DATABASE db1") ``` -### Close connection +### Close Connection ```python cursor.close() ``` -## OpenMLDB SQLAlchemy usage +## OpenMLDB SQLAlchemy -This section demonstrates using the Python SDK through OpenMLDB SQLAlchemy. +This section demonstrates the use of the Python SDK through OpenMLDB SQLAlchemy. Similarly, if any of the DBAPI interfaces fail, they will raise a `DatabaseError` exception. Users can catch and handle this exception as needed. The handling of return values should follow the SQLAlchemy standard. -### Create connection +### Create Connection ```python create_engine('openmldb:///db_name?zk=zkcluster&zkPath=zkpath') @@ -110,7 +127,7 @@ engine = db.create_engine('openmldb:///?zk=127.0.0.1:2181&zkPath=/openmldb') connection = engine.connect() ``` -### Create database +### Create Database Use the `connection.execute()` interface to create database `db1`: @@ -123,7 +140,7 @@ except Exception as e: connection.execute("USE db1") ``` -### Create table +### Create Table Use the `connection.execute()` interface to create table `t1`: @@ -134,7 +151,7 @@ except Exception as e: print(e) ``` -### Insert data into the table +### Insert Data into Table Use the `connection.execute (ddl)` interface to execute the SQL insert statement, and you can insert data into the table: @@ -156,7 +173,7 @@ except Exception as e: print(e) ``` -### Execute SQL batch query +### Execute SQL Batch Query Use the `connection.execute (sql)` interface to execute SQL batch query statements: @@ -171,7 +188,7 @@ except Exception as e: print(e) ``` -### Execute SQL request query +### Execute SQL Query Use the `connection.execute (sql, request)` interface to execute the SQL request query. You can put the input data into the second parameter of the execute function: @@ -182,7 +199,7 @@ except Exception as e: print(e) ``` -### Delete table +### Delete Table Use the `connection.execute (ddl)` interface to delete table `t1`: @@ -193,7 +210,7 @@ except Exception as e: print(e) ``` -### Delete database +### Delete Database Use the connection.execute(ddl)interface to delete database `db1`: @@ -204,7 +221,7 @@ except Exception as e: print(e) ``` -## Notebook Magic Function usage +## Notebook Magic Function The OpenMLDB Python SDK supports the expansion of Notebook magic function. Use the following statement to register the function. @@ -216,26 +233,24 @@ openmldb.sql_magic.register(db) Then you can use line magic function `%sql` and block magic function `%%sql` in Notebook. -![img](https://openmldb.ai/docs/zh/main/_images/openmldb_magic_function.png) - -## The complete usage example +![img](../images/openmldb_magic_function.png) -Refer to the [Python quickstart demo](https://github.com/4paradigm/OpenMLDB/tree/main/demo/python_quickstart/demo.py), including the above DBAPI and SQLAlchemy usage. +## A Complete Example -## common problem +Refer to the [Python quickstart demo](https://github.com/4paradigm/OpenMLDB/tree/main/demo/python_quickstart/demo.py), which includes the above DBAPI and SQLAlchemy usage. -- **What do I do when error** `ImportError:dlopen (.. _sql_router_sdk. so, 2): initializer function 0xnnnn not in mapped image for` **appears when using SQLAlchemy?** +## Q&A -In addition to import openmldb, you may also import other third-party libraries, which may cause confusion in the loading order. Due to the complexity of the system, you can try to use the virtual env environment (such as conda) to avoid interference. In addition, import openmldb before importing sqlalchemy, and ensure that the two imports are in the first place. +- **What do I do when error `ImportError:dlopen (.. _sql_router_sdk. so, 2): initializer function 0xnnnn not in mapped image for` appears when using SQLAlchemy?** -If the error still occur, it is recommended to connect to OpenMLDB by using request http to connect to apiserver. +In addition to importing OpenMLDB, you may also have imported other third-party libraries, which may cause confusion in the loading order. Due to the complexity of the system, you can try to use the virtual env environment (such as conda) to avoid interference. In addition, import OpenMLDB before importing SQLAlchemy, and ensure that the two imports are in the first place. -occur +If the error still occurs, it is recommended to connect to OpenMLDB by request http to connect to apiserver. -- **What do I do if Python SDK encountered the following problems?** +- **What do I do if Python SDK encounters the following problems?** ```plain [libprotobuf FATAL /Users/runner/work/crossbow/crossbow/vcpkg/buildtrees/protobuf/src/23fa7edd52-3ba2225d30.clean/src/google/protobuf/stubs/common.cc:87] This program was compiled against version 3.6.1 of the Protocol Buffer runtime library, which is not compatible with the installed version (3.15.8). Contact the program author for an update. ... ``` -This problem may be due to the introduction of other versions of protobuf in other libraries. You can try to use the virtual env environment (such as conda). +This problem may be due to the import of other versions of protobuf from other libraries. You can try to use the virtual env environment (such as conda). diff --git a/docs/en/quickstart/sdk/rest_api.md b/docs/en/quickstart/sdk/rest_api.md index 7d8f3c4a881..c2a6cc972ea 100644 --- a/docs/en/quickstart/sdk/rest_api.md +++ b/docs/en/quickstart/sdk/rest_api.md @@ -1,12 +1,12 @@ # REST API -## Important information +## Important -REST APIs interact with the services of APIServer and OpenMLDB, so the APIServer module must be properly deployed to be used effectively. APIServer is an optional module during installation and deployment. Refer to the APIServer deployment document. +REST APIs interact with the services of APIServer and OpenMLDB, so the APIServer module must be properly deployed to be used effectively. APIServer is an optional module during installation and deployment. Refer to [APIServer Deployment](../../deploy/install_deploy.md). At this stage, APIServer is mainly used for functional testing, not recommended for performance testing, nor recommended for the production environment. The default deployment of APIServer does not have a high availability mechanism at present and introduces additional network and codec overhead. -## Data insertion +## Data Insertion Request address: http://ip:port/dbs/{db_name}/tables/{table_name} @@ -23,7 +23,6 @@ The requestor: ``` - Currently, it only supports inserting one piece of data. - - The data should be arranged in strict accordance with the schema. Sample request data: @@ -44,7 +43,7 @@ Response: } ``` -## Real-time feature computing +## Real-Time Feature Computing Request address: http://ip:port/dbs/{db_name}/deployments/{deployment_name} @@ -81,11 +80,11 @@ Requestor - Input data in JSON format can have redundant columns. -**Sample request data** +**Sample Request Data** Example 1: Array format -```plain +```Plain curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d'{ "input": [["aaa", 11, 22, 1.2, 1.3, 1635247427000, "2021-05-20"]] }' @@ -106,9 +105,7 @@ Response: Example 2: JSON format ```JSON -curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d'{ - "input": [{"c1":"aaa", "c2":11, "c3":22, "c4":1.2, "c5":1.3, "c6":1635247427000, "c7":"2021-05-20", "foo":"bar"}] - }' +curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d'{"input": [{"c1":"aaa", "c2":11, "c3":22, "c4":1.2, "c5":1.3, "c6":1635247427000, "c7":"2021-05-20", "foo":"bar"}]}' ``` Response: @@ -125,7 +122,7 @@ Response: ## Query -Request address: http://ip:port/dbs/ {db_name} +Request address: http://ip:port/dbs/{db_name} Request method: POST @@ -146,13 +143,13 @@ Request parameters: | Parameters | Type | Requirement | Description | | ---------- | ------ | ----------- | ------------------------------------------------------------ | -| mode | String | Yes | Available for `offsync` , `offasync`, `online` | +| mode | String | Yes | Set to `offsync` , `offasync`, `online` | | sql | String | Yes | | | input | Object | No | | | schema | Array | No | Support data types (case insensitive): `Bool`, `Int16`, `Int32`, `Int64`, `Float`, `Double`, `String`, `Date and Timestamp` | | data | Array | No | | -**Sample request data** +**Sample Request Data** Example 1: General query @@ -202,7 +199,7 @@ Response: } ``` -## Query deployment information +## Query Deployment Information Request address: http://ip:port/dbs/{db_name}/deployments/{deployment_name} @@ -239,7 +236,7 @@ Response: } ``` -## Acquire all library names +## Acquire All Library Names Request address: http://ip:port/dbs @@ -257,7 +254,7 @@ Response: } ``` -## Acquire all table names +## Acquire All Table Names Request address: http://ip:port/dbs/{db}/tables @@ -310,7 +307,7 @@ Response: } ``` -## Refresh APIServer metadata cache +## Refresh APIServer Metadata Cache Request address: http://ip:port/refresh From 671897e2112b23adc29c668e3d36fc7a84e43fdc Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Thu, 26 Oct 2023 16:36:27 +0800 Subject: [PATCH 080/111] refactor(codegen): null safe for struct ir builder (#3547) fixes #926 --- cases/query/const_query.yaml | 48 ++++++++++- hybridse/src/codegen/array_ir_builder.cc | 16 ++++ hybridse/src/codegen/array_ir_builder.h | 4 +- hybridse/src/codegen/cast_expr_ir_builder.cc | 86 ++++++++------------ hybridse/src/codegen/cast_expr_ir_builder.h | 24 ++---- hybridse/src/codegen/date_ir_builder.cc | 8 -- hybridse/src/codegen/date_ir_builder.h | 10 +-- hybridse/src/codegen/expr_ir_builder.cc | 5 +- hybridse/src/codegen/ir_base_builder.cc | 15 ++-- hybridse/src/codegen/native_value.h | 4 +- hybridse/src/codegen/string_ir_builder.cc | 12 +-- hybridse/src/codegen/string_ir_builder.h | 20 ++--- hybridse/src/codegen/struct_ir_builder.cc | 25 ++++-- hybridse/src/codegen/struct_ir_builder.h | 22 +++-- hybridse/src/codegen/timestamp_ir_builder.cc | 8 +- hybridse/src/codegen/type_ir_builder.cc | 45 ++++++++-- hybridse/src/codegen/type_ir_builder.h | 6 ++ hybridse/src/udf/default_udf_library.cc | 12 +-- 18 files changed, 197 insertions(+), 173 deletions(-) diff --git a/cases/query/const_query.yaml b/cases/query/const_query.yaml index 5efe6fa3c29..a3ea130d885 100644 --- a/cases/query/const_query.yaml +++ b/cases/query/const_query.yaml @@ -126,15 +126,55 @@ cases: columns: ['c1 bool', 'c2 int16', 'c3 int', 'c4 double', 'c5 string', 'c6 date', 'c7 timestamp' ] rows: - [ true, 3, 13, 10.0, 'a string', '2020-05-22', 1590115420000 ] + + # ================================================================================= + # Null safe for structure types: String, Date, Timestamp and Array + # creating struct from: + # 1. NULL liternal (const null) + # 2. another supported date type but fails to cast, e.g. timestamp(-1) returns NULL of timestamp + # + # casting to array type un-implemented + # ================================================================================= - id: 10 + desc: null safe for date mode: procedure-unsupport sql: | select datediff(Date(timestamp(-1)), Date("2021-05-01")) as out1, datediff(Date(timestamp(-2177481600)), Date("2021-05-01")) as out2, - datediff(cast(NULL as date), Date("2021-05-01")) as out3 - ; + datediff(cast(NULL as date), Date("2021-05-01")) as out3, + date(NULL) as out4, + date("abc") as out5, + date(timestamp("abc")) as out6 + expect: + columns: ["out1 int", "out2 int", "out3 int", "out4 date", "out5 date", "out6 date"] + data: | + NULL, NULL, NULL, NULL, NULL, NULL + - id: 11 + desc: null safe for timestamp + mode: procedure-unsupport + sql: | + select + month(cast(NULL as timestamp)) as out1, + month(timestamp(NULL)) as out2, + month(timestamp(-1)) as out3, + month(timestamp("abc")) as out4, + month(timestamp(date("abc"))) as out5 + expect: + columns: ["out1 int", "out2 int", "out3 int", "out4 int", "out5 int"] + data: | + NULL, NULL, NULL, NULL, NULL + - id: 12 + desc: null safe for string + mode: procedure-unsupport + sql: | + select + char_length(cast(NULL as string)) as out1, + char_length(string(int(NULL))) as out2, + char_length(string(bool(null))) as out3, + char_length(string(timestamp(null))) as out4, + char_length(string(date(null))) as out5 expect: - columns: ["out1 int", "out2 int", "out3 int"] + columns: ["out1 int", "out2 int", "out3 int", "out4 int", "out5 int"] data: | - NULL, NULL, NULL + NULL, NULL, NULL, NULL, NULL diff --git a/hybridse/src/codegen/array_ir_builder.cc b/hybridse/src/codegen/array_ir_builder.cc index 0788c1ba8aa..5bf1bf06e99 100644 --- a/hybridse/src/codegen/array_ir_builder.cc +++ b/hybridse/src/codegen/array_ir_builder.cc @@ -114,5 +114,21 @@ base::Status ArrayIRBuilder::NewEmptyArray(llvm::BasicBlock* bb, NativeValue* ou return base::Status::OK(); } +bool ArrayIRBuilder::CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) { + llvm::Value* array_alloca = nullptr; + if (!Create(block, &array_alloca)) { + return false; + } + + llvm::IRBuilder<> builder(block); + ::llvm::Value* array_sz = builder.getInt64(0); + if (!Set(block, array_alloca, 2, array_sz)) { + return false; + } + + *output = array_alloca; + return true; +} + } // namespace codegen } // namespace hybridse diff --git a/hybridse/src/codegen/array_ir_builder.h b/hybridse/src/codegen/array_ir_builder.h index 38eb6eda1ad..66ef2fe05da 100644 --- a/hybridse/src/codegen/array_ir_builder.h +++ b/hybridse/src/codegen/array_ir_builder.h @@ -49,12 +49,12 @@ class ArrayIRBuilder : public StructTypeIRBuilder { void InitStructType() override; - bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) override { return true; } + bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) override; bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist) override { return true; } base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, NativeValue* output) override { - return base::Status::OK(); + CHECK_TRUE(false, common::kCodegenError, "casting to array un-implemented"); }; private: diff --git a/hybridse/src/codegen/cast_expr_ir_builder.cc b/hybridse/src/codegen/cast_expr_ir_builder.cc index bdb6329c6c8..57e4103cba6 100644 --- a/hybridse/src/codegen/cast_expr_ir_builder.cc +++ b/hybridse/src/codegen/cast_expr_ir_builder.cc @@ -15,12 +15,15 @@ */ #include "codegen/cast_expr_ir_builder.h" + #include "codegen/date_ir_builder.h" #include "codegen/ir_base_builder.h" #include "codegen/string_ir_builder.h" #include "codegen/timestamp_ir_builder.h" +#include "codegen/type_ir_builder.h" #include "glog/logging.h" #include "node/node_manager.h" +#include "proto/fe_common.pb.h" using hybridse::common::kCodegenError; @@ -72,98 +75,73 @@ Status CastExprIRBuilder::Cast(const NativeValue& value, } return Status::OK(); } -Status CastExprIRBuilder::SafeCast(const NativeValue& value, ::llvm::Type* type, - NativeValue* output) { + +Status CastExprIRBuilder::SafeCast(const NativeValue& value, ::llvm::Type* dst_type, NativeValue* output) { ::llvm::IRBuilder<> builder(block_); - CHECK_TRUE(IsSafeCast(value.GetType(), type), kCodegenError, - "Safe cast fail: unsafe cast"); + CHECK_TRUE(IsSafeCast(value.GetType(), dst_type), kCodegenError, "Safe cast fail: unsafe cast"); Status status; if (value.IsConstNull()) { - if (TypeIRBuilder::IsStringPtr(type)) { - StringIRBuilder string_ir_builder(block_->getModule()); - CHECK_STATUS(string_ir_builder.CreateNull(block_, output)); - return base::Status::OK(); - } else { - *output = NativeValue::CreateNull(type); - } - } else if (TypeIRBuilder::IsTimestampPtr(type)) { + auto res = CreateSafeNull(block_, dst_type); + CHECK_TRUE(res.ok(), kCodegenError, res.status().ToString()); + *output = res.value(); + } else if (TypeIRBuilder::IsTimestampPtr(dst_type)) { TimestampIRBuilder timestamp_ir_builder(block_->getModule()); CHECK_STATUS(timestamp_ir_builder.CastFrom(block_, value, output)); return Status::OK(); - } else if (TypeIRBuilder::IsDatePtr(type)) { + } else if (TypeIRBuilder::IsDatePtr(dst_type)) { DateIRBuilder date_ir_builder(block_->getModule()); CHECK_STATUS(date_ir_builder.CastFrom(block_, value, output)); return Status::OK(); - } else if (TypeIRBuilder::IsStringPtr(type)) { + } else if (TypeIRBuilder::IsStringPtr(dst_type)) { StringIRBuilder string_ir_builder(block_->getModule()); CHECK_STATUS(string_ir_builder.CastFrom(block_, value, output)); return Status::OK(); - } else if (TypeIRBuilder::IsNumber(type)) { + } else if (TypeIRBuilder::IsNumber(dst_type)) { Status status; ::llvm::Value* output_value = nullptr; - CHECK_TRUE(SafeCastNumber(value.GetValue(&builder), type, &output_value, - status), - kCodegenError); + CHECK_TRUE(SafeCastNumber(value.GetValue(&builder), dst_type, &output_value, status), kCodegenError); if (value.IsNullable()) { - *output = NativeValue::CreateWithFlag(output_value, - value.GetIsNull(&builder)); + *output = NativeValue::CreateWithFlag(output_value, value.GetIsNull(&builder)); } else { *output = NativeValue::Create(output_value); } } else { - return Status(common::kCodegenError, - "Can't cast from " + - TypeIRBuilder::TypeName(value.GetType()) + " to " + - TypeIRBuilder::TypeName(type)); + return Status(common::kCodegenError, "Can't cast from " + TypeIRBuilder::TypeName(value.GetType()) + " to " + + TypeIRBuilder::TypeName(dst_type)); } return Status::OK(); } -Status CastExprIRBuilder::UnSafeCast(const NativeValue& value, - ::llvm::Type* type, NativeValue* output) { - ::llvm::IRBuilder<> builder(block_); - if (value.IsConstNull()) { - if (TypeIRBuilder::IsStringPtr(type)) { - StringIRBuilder string_ir_builder(block_->getModule()); - CHECK_STATUS(string_ir_builder.CreateNull(block_, output)); - return base::Status::OK(); - } else if (TypeIRBuilder::IsDatePtr(type)) { - DateIRBuilder date_ir(block_->getModule()); - CHECK_STATUS(date_ir.CreateNull(block_, output)); - return base::Status::OK(); - } else { - *output = NativeValue::CreateNull(type); - } - } else if (TypeIRBuilder::IsTimestampPtr(type)) { +Status CastExprIRBuilder::UnSafeCast(const NativeValue& value, ::llvm::Type* dst_type, NativeValue* output) { + ::llvm::IRBuilder<> builder(block_); + if (value.IsConstNull() || (TypeIRBuilder::IsNumber(dst_type) && TypeIRBuilder::IsDatePtr(value.GetType()))) { + // input is const null or (cast date to number) + auto res = CreateSafeNull(block_, dst_type); + CHECK_TRUE(res.ok(), kCodegenError, res.status().ToString()); + *output = res.value(); + } else if (TypeIRBuilder::IsTimestampPtr(dst_type)) { TimestampIRBuilder timestamp_ir_builder(block_->getModule()); CHECK_STATUS(timestamp_ir_builder.CastFrom(block_, value, output)); return Status::OK(); - } else if (TypeIRBuilder::IsDatePtr(type)) { + } else if (TypeIRBuilder::IsDatePtr(dst_type)) { DateIRBuilder date_ir_builder(block_->getModule()); CHECK_STATUS(date_ir_builder.CastFrom(block_, value, output)); return Status::OK(); - } else if (TypeIRBuilder::IsStringPtr(type)) { + } else if (TypeIRBuilder::IsStringPtr(dst_type)) { StringIRBuilder string_ir_builder(block_->getModule()); CHECK_STATUS(string_ir_builder.CastFrom(block_, value, output)); return Status::OK(); - } else if (TypeIRBuilder::IsNumber(type) && - TypeIRBuilder::IsStringPtr(value.GetType())) { + } else if (TypeIRBuilder::IsNumber(dst_type) && TypeIRBuilder::IsStringPtr(value.GetType())) { StringIRBuilder string_ir_builder(block_->getModule()); - CHECK_STATUS( - string_ir_builder.CastToNumber(block_, value, type, output)); + CHECK_STATUS(string_ir_builder.CastToNumber(block_, value, dst_type, output)); return Status::OK(); - } else if (TypeIRBuilder::IsNumber(type) && - TypeIRBuilder::IsDatePtr(value.GetType())) { - *output = NativeValue::CreateNull(type); } else { Status status; ::llvm::Value* output_value = nullptr; - CHECK_TRUE(UnSafeCastNumber(value.GetValue(&builder), type, - &output_value, status), - kCodegenError, status.msg); + CHECK_TRUE(UnSafeCastNumber(value.GetValue(&builder), dst_type, &output_value, status), kCodegenError, + status.msg); if (value.IsNullable()) { - *output = NativeValue::CreateWithFlag(output_value, - value.GetIsNull(&builder)); + *output = NativeValue::CreateWithFlag(output_value, value.GetIsNull(&builder)); } else { *output = NativeValue::Create(output_value); } diff --git a/hybridse/src/codegen/cast_expr_ir_builder.h b/hybridse/src/codegen/cast_expr_ir_builder.h index bb487ed1466..5adfca2bdcf 100644 --- a/hybridse/src/codegen/cast_expr_ir_builder.h +++ b/hybridse/src/codegen/cast_expr_ir_builder.h @@ -18,9 +18,6 @@ #define HYBRIDSE_SRC_CODEGEN_CAST_EXPR_IR_BUILDER_H_ #include "base/fe_status.h" #include "codegen/cond_select_ir_builder.h" -#include "codegen/scope_var.h" -#include "llvm/IR/IRBuilder.h" -#include "proto/fe_type.pb.h" namespace hybridse { namespace codegen { @@ -32,26 +29,19 @@ class CastExprIRBuilder { explicit CastExprIRBuilder(::llvm::BasicBlock* block); ~CastExprIRBuilder(); - Status Cast(const NativeValue& value, ::llvm::Type* cast_type, - NativeValue* output); // NOLINT - Status SafeCast(const NativeValue& value, ::llvm::Type* type, - NativeValue* output); // NOLINT - Status UnSafeCast(const NativeValue& value, ::llvm::Type* type, - NativeValue* output); // NOLINT + Status Cast(const NativeValue& value, ::llvm::Type* cast_type, NativeValue* output); + Status SafeCast(const NativeValue& value, ::llvm::Type* dst_type, NativeValue* output); + Status UnSafeCast(const NativeValue& value, ::llvm::Type* dst_type, NativeValue* output); static bool IsSafeCast(::llvm::Type* lhs, ::llvm::Type* rhs); - static Status InferNumberCastTypes(::llvm::Type* left_type, - ::llvm::Type* right_type); + static Status InferNumberCastTypes(::llvm::Type* left_type, ::llvm::Type* right_type); static bool IsIntFloat2PointerCast(::llvm::Type* src, ::llvm::Type* dist); bool BoolCast(llvm::Value* pValue, llvm::Value** pValue1, base::Status& status); // NOLINT - bool SafeCastNumber(::llvm::Value* value, ::llvm::Type* type, - ::llvm::Value** output, + bool SafeCastNumber(::llvm::Value* value, ::llvm::Type* type, ::llvm::Value** output, base::Status& status); // NOLINT - bool UnSafeCastNumber(::llvm::Value* value, ::llvm::Type* type, - ::llvm::Value** output, + bool UnSafeCastNumber(::llvm::Value* value, ::llvm::Type* type, ::llvm::Value** output, base::Status& status); // NOLINT - bool UnSafeCastDouble(::llvm::Value* value, ::llvm::Type* type, - ::llvm::Value** output, + bool UnSafeCastDouble(::llvm::Value* value, ::llvm::Type* type, ::llvm::Value** output, base::Status& status); // NOLINT private: diff --git a/hybridse/src/codegen/date_ir_builder.cc b/hybridse/src/codegen/date_ir_builder.cc index 3a60147bd9a..19bf319d7c3 100644 --- a/hybridse/src/codegen/date_ir_builder.cc +++ b/hybridse/src/codegen/date_ir_builder.cc @@ -45,14 +45,6 @@ void DateIRBuilder::InitStructType() { return; } -base::Status DateIRBuilder::CreateNull(::llvm::BasicBlock* block, NativeValue* output) { - ::llvm::Value* value = nullptr; - CHECK_TRUE(CreateDefault(block, &value), common::kCodegenError, "Fail to construct string") - ::llvm::IRBuilder<> builder(block); - *output = NativeValue::CreateWithFlag(value, builder.getInt1(true)); - return base::Status::OK(); -} - bool DateIRBuilder::CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) { return NewDate(block, output); diff --git a/hybridse/src/codegen/date_ir_builder.h b/hybridse/src/codegen/date_ir_builder.h index b44b039d57d..d9004d48da1 100644 --- a/hybridse/src/codegen/date_ir_builder.h +++ b/hybridse/src/codegen/date_ir_builder.h @@ -27,16 +27,14 @@ class DateIRBuilder : public StructTypeIRBuilder { public: explicit DateIRBuilder(::llvm::Module* m); ~DateIRBuilder(); - void InitStructType() override; - base::Status CreateNull(::llvm::BasicBlock* block, NativeValue* output); + void InitStructType() override; bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) override; + bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist) override; + base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, NativeValue* output) override; bool NewDate(::llvm::BasicBlock* block, ::llvm::Value** output); - bool NewDate(::llvm::BasicBlock* block, ::llvm::Value* date, - ::llvm::Value** output); - bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist); - base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, NativeValue* output); + bool NewDate(::llvm::BasicBlock* block, ::llvm::Value* date, ::llvm::Value** output); bool GetDate(::llvm::BasicBlock* block, ::llvm::Value* date, ::llvm::Value** output); diff --git a/hybridse/src/codegen/expr_ir_builder.cc b/hybridse/src/codegen/expr_ir_builder.cc index 1bccb6deef3..6b95bfb8ce1 100644 --- a/hybridse/src/codegen/expr_ir_builder.cc +++ b/hybridse/src/codegen/expr_ir_builder.cc @@ -26,10 +26,8 @@ #include "codegen/cond_select_ir_builder.h" #include "codegen/context.h" #include "codegen/date_ir_builder.h" -#include "codegen/fn_ir_builder.h" #include "codegen/ir_base_builder.h" #include "codegen/list_ir_builder.h" -#include "codegen/struct_ir_builder.h" #include "codegen/timestamp_ir_builder.h" #include "codegen/type_ir_builder.h" #include "codegen/udf_ir_builder.h" @@ -217,8 +215,7 @@ Status ExprIRBuilder::BuildConstExpr( ::llvm::IRBuilder<> builder(ctx_->GetCurrentBlock()); switch (const_node->GetDataType()) { case ::hybridse::node::kNull: { - *output = NativeValue::CreateNull( - llvm::Type::getTokenTy(builder.getContext())); + *output = NativeValue(nullptr, nullptr, llvm::Type::getTokenTy(builder.getContext())); break; } case ::hybridse::node::kBool: { diff --git a/hybridse/src/codegen/ir_base_builder.cc b/hybridse/src/codegen/ir_base_builder.cc index d1c7e153dd6..992d41d0998 100644 --- a/hybridse/src/codegen/ir_base_builder.cc +++ b/hybridse/src/codegen/ir_base_builder.cc @@ -17,7 +17,6 @@ #include "codegen/ir_base_builder.h" #include -#include #include #include @@ -625,21 +624,25 @@ bool GetBaseType(::llvm::Type* type, ::hybridse::node::DataType* output) { return false; } - if (pointee_ty->getStructName().startswith("fe.list_ref_")) { + auto struct_name = pointee_ty->getStructName(); + if (struct_name.startswith("fe.list_ref_")) { *output = hybridse::node::kList; return true; - } else if (pointee_ty->getStructName().startswith("fe.iterator_ref_")) { + } else if (struct_name.startswith("fe.iterator_ref_")) { *output = hybridse::node::kIterator; return true; - } else if (pointee_ty->getStructName().equals("fe.string_ref")) { + } else if (struct_name.equals("fe.string_ref")) { *output = hybridse::node::kVarchar; return true; - } else if (pointee_ty->getStructName().equals("fe.timestamp")) { + } else if (struct_name.equals("fe.timestamp")) { *output = hybridse::node::kTimestamp; return true; - } else if (pointee_ty->getStructName().equals("fe.date")) { + } else if (struct_name.equals("fe.date")) { *output = hybridse::node::kDate; return true; + } else if (struct_name.startswith("fe.array_")) { + *output = hybridse::node::kArray; + return true; } LOG(WARNING) << "no mapping pointee_ty for llvm pointee_ty " << pointee_ty->getStructName().str(); diff --git a/hybridse/src/codegen/native_value.h b/hybridse/src/codegen/native_value.h index 52b0453c743..4bb756e3c3b 100644 --- a/hybridse/src/codegen/native_value.h +++ b/hybridse/src/codegen/native_value.h @@ -21,9 +21,7 @@ #include #include -#include "glog/logging.h" #include "llvm/IR/IRBuilder.h" -#include "llvm/IR/Module.h" namespace hybridse { namespace codegen { @@ -93,9 +91,9 @@ class NativeValue { NativeValue WithFlag(::llvm::Value*) const; NativeValue() : raw_(nullptr), flag_(nullptr), type_(nullptr) {} + NativeValue(::llvm::Value* raw, ::llvm::Value* flag, ::llvm::Type* type); private: - NativeValue(::llvm::Value* raw, ::llvm::Value* flag, ::llvm::Type* type); ::llvm::Value* raw_; ::llvm::Value* flag_; ::llvm::Type* type_; diff --git a/hybridse/src/codegen/string_ir_builder.cc b/hybridse/src/codegen/string_ir_builder.cc index bb69f529f2b..8c41d326ee0 100644 --- a/hybridse/src/codegen/string_ir_builder.cc +++ b/hybridse/src/codegen/string_ir_builder.cc @@ -63,17 +63,7 @@ bool StringIRBuilder::CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) { return NewString(block, output); } -/// Create Const String Null -/// \param block -/// \param output -/// \return -base::Status StringIRBuilder::CreateNull(::llvm::BasicBlock* block, NativeValue* output) { - ::llvm::Value* value = nullptr; - CHECK_TRUE(NewString(block, &value), kCodegenError, "Fail to construct string") - ::llvm::IRBuilder<> builder(block); - *output = NativeValue::CreateWithFlag(value, builder.getInt1(true)); - return base::Status::OK(); -} + bool StringIRBuilder::NewString(::llvm::BasicBlock* block, ::llvm::Value** output) { if (!Create(block, output)) { diff --git a/hybridse/src/codegen/string_ir_builder.h b/hybridse/src/codegen/string_ir_builder.h index fb81872599a..84f73d2822d 100644 --- a/hybridse/src/codegen/string_ir_builder.h +++ b/hybridse/src/codegen/string_ir_builder.h @@ -16,14 +16,12 @@ #ifndef HYBRIDSE_SRC_CODEGEN_STRING_IR_BUILDER_H_ #define HYBRIDSE_SRC_CODEGEN_STRING_IR_BUILDER_H_ + #include #include + #include "base/fe_status.h" -#include "codegen/cast_expr_ir_builder.h" -#include "codegen/scope_var.h" #include "codegen/struct_ir_builder.h" -#include "llvm/IR/IRBuilder.h" -#include "proto/fe_type.pb.h" namespace hybridse { namespace codegen { @@ -32,16 +30,18 @@ class StringIRBuilder : public StructTypeIRBuilder { public: explicit StringIRBuilder(::llvm::Module* m); ~StringIRBuilder(); + void InitStructType() override; - bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output); - base::Status CreateNull(::llvm::BasicBlock* block, NativeValue* output); + bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) override; + bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist) override; + base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, NativeValue* output) override; + base::Status CastFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value** output); + bool NewString(::llvm::BasicBlock* block, ::llvm::Value** output); bool NewString(::llvm::BasicBlock* block, const std::string& str, ::llvm::Value** output); bool NewString(::llvm::BasicBlock* block, ::llvm::Value* size, ::llvm::Value* data, ::llvm::Value** output); - bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, - ::llvm::Value* dist); bool GetSize(::llvm::BasicBlock* block, ::llvm::Value* str, ::llvm::Value** output); bool SetSize(::llvm::BasicBlock* block, ::llvm::Value* str, @@ -50,8 +50,6 @@ class StringIRBuilder : public StructTypeIRBuilder { ::llvm::Value** output); bool SetData(::llvm::BasicBlock* block, ::llvm::Value* str, ::llvm::Value* data); - base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, - NativeValue* output); base::Status Compare(::llvm::BasicBlock* block, const NativeValue& s1, const NativeValue& s2, NativeValue* output); @@ -62,8 +60,6 @@ class StringIRBuilder : public StructTypeIRBuilder { const std::vector& strs, NativeValue* output); - base::Status CastFrom(::llvm::BasicBlock* block, ::llvm::Value* src, - ::llvm::Value** output); base::Status CastToNumber(::llvm::BasicBlock* block, const NativeValue& src, ::llvm::Type* type, NativeValue* output); }; diff --git a/hybridse/src/codegen/struct_ir_builder.cc b/hybridse/src/codegen/struct_ir_builder.cc index 3a8e3336936..7adfb5d950f 100644 --- a/hybridse/src/codegen/struct_ir_builder.cc +++ b/hybridse/src/codegen/struct_ir_builder.cc @@ -25,17 +25,14 @@ StructTypeIRBuilder::StructTypeIRBuilder(::llvm::Module* m) : TypeIRBuilder(), m_(m), struct_type_(nullptr) {} StructTypeIRBuilder::~StructTypeIRBuilder() {} -bool StructTypeIRBuilder::StructCopyFrom(::llvm::BasicBlock* block, - ::llvm::Value* src, - ::llvm::Value* dist) { - StructTypeIRBuilder* struct_builder = - CreateStructTypeIRBuilder(block->getModule(), src->getType()); +bool StructTypeIRBuilder::StructCopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist) { + StructTypeIRBuilder* struct_builder = CreateStructTypeIRBuilder(block->getModule(), src->getType()); bool ok = struct_builder->CopyFrom(block, src, dist); delete struct_builder; return ok; } -StructTypeIRBuilder* StructTypeIRBuilder::CreateStructTypeIRBuilder( - ::llvm::Module* m, ::llvm::Type* type) { + +StructTypeIRBuilder* StructTypeIRBuilder::CreateStructTypeIRBuilder(::llvm::Module* m, ::llvm::Type* type) { node::DataType base_type; if (!GetBaseType(type, &base_type)) { return nullptr; @@ -49,14 +46,24 @@ StructTypeIRBuilder* StructTypeIRBuilder::CreateStructTypeIRBuilder( case node::kVarchar: return new StringIRBuilder(m); default: { - LOG(WARNING) << "fail to create struct type ir builder for " - << DataTypeName(base_type); + LOG(WARNING) << "fail to create struct type ir builder for " << DataTypeName(base_type); return nullptr; } } return nullptr; } + +absl::StatusOr StructTypeIRBuilder::CreateNull(::llvm::BasicBlock* block) { + ::llvm::Value* value = nullptr; + if (!CreateDefault(block, &value)) { + return absl::InternalError(absl::StrCat("fail to construct ", GetLlvmObjectString(GetType()))); + } + ::llvm::IRBuilder<> builder(block); + return NativeValue::CreateWithFlag(value, builder.getInt1(true)); +} + ::llvm::Type* StructTypeIRBuilder::GetType() { return struct_type_; } + bool StructTypeIRBuilder::Create(::llvm::BasicBlock* block, ::llvm::Value** output) const { if (block == NULL || output == NULL) { diff --git a/hybridse/src/codegen/struct_ir_builder.h b/hybridse/src/codegen/struct_ir_builder.h index e306dfe869e..e197665855b 100644 --- a/hybridse/src/codegen/struct_ir_builder.h +++ b/hybridse/src/codegen/struct_ir_builder.h @@ -17,6 +17,7 @@ #ifndef HYBRIDSE_SRC_CODEGEN_STRUCT_IR_BUILDER_H_ #define HYBRIDSE_SRC_CODEGEN_STRUCT_IR_BUILDER_H_ +#include "absl/status/statusor.h" #include "base/fe_status.h" #include "codegen/native_value.h" #include "codegen/type_ir_builder.h" @@ -28,15 +29,18 @@ class StructTypeIRBuilder : public TypeIRBuilder { public: explicit StructTypeIRBuilder(::llvm::Module*); ~StructTypeIRBuilder(); - static StructTypeIRBuilder* CreateStructTypeIRBuilder(::llvm::Module*, - ::llvm::Type*); - static bool StructCopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, - ::llvm::Value* dist); + + static StructTypeIRBuilder* CreateStructTypeIRBuilder(::llvm::Module*, ::llvm::Type*); + static bool StructCopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist); + virtual void InitStructType() = 0; + virtual bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, ::llvm::Value* dist) = 0; + virtual base::Status CastFrom(::llvm::BasicBlock* block, const NativeValue& src, NativeValue* output) = 0; + virtual bool CreateDefault(::llvm::BasicBlock* block, ::llvm::Value** output) = 0; + + absl::StatusOr CreateNull(::llvm::BasicBlock* block); ::llvm::Type* GetType(); bool Create(::llvm::BasicBlock* block, ::llvm::Value** output) const; - virtual bool CreateDefault(::llvm::BasicBlock* block, - ::llvm::Value** output) = 0; // Load the 'idx' th field into ''*output' // NOTE: not all types are loaded correctly, e.g for array type @@ -46,12 +50,6 @@ class StructTypeIRBuilder : public TypeIRBuilder { // Get the address of 'idx' th field bool Get(::llvm::BasicBlock* block, ::llvm::Value* struct_value, unsigned int idx, ::llvm::Value** output) const; - virtual bool CopyFrom(::llvm::BasicBlock* block, ::llvm::Value* src, - ::llvm::Value* dist) = 0; - virtual base::Status CastFrom(::llvm::BasicBlock* block, - const NativeValue& src, - NativeValue* output) = 0; - protected: ::llvm::Module* m_; ::llvm::Type* struct_type_; diff --git a/hybridse/src/codegen/timestamp_ir_builder.cc b/hybridse/src/codegen/timestamp_ir_builder.cc index f14952f455c..c3a8054e1cd 100644 --- a/hybridse/src/codegen/timestamp_ir_builder.cc +++ b/hybridse/src/codegen/timestamp_ir_builder.cc @@ -44,9 +44,7 @@ void TimestampIRBuilder::InitStructType() { return; } stype = ::llvm::StructType::create(m_->getContext(), name); - ::llvm::Type* ts_ty = (::llvm::Type::getInt64Ty(m_->getContext())); - std::vector<::llvm::Type*> elements; - elements.push_back(ts_ty); + std::vector<::llvm::Type*> elements = {::llvm::Type::getInt64Ty(m_->getContext())}; stype->setBody(::llvm::ArrayRef<::llvm::Type*>(elements)); struct_type_ = stype; return; @@ -61,10 +59,6 @@ base::Status TimestampIRBuilder::CastFrom(::llvm::BasicBlock* block, return Status::OK(); } - if (src.IsConstNull()) { - *output = NativeValue::CreateNull(GetType()); - return Status::OK(); - } ::llvm::IRBuilder<> builder(block); NativeValue ts; CastExprIRBuilder cast_builder(block); diff --git a/hybridse/src/codegen/type_ir_builder.cc b/hybridse/src/codegen/type_ir_builder.cc index bbdf1346995..07adfb21855 100644 --- a/hybridse/src/codegen/type_ir_builder.cc +++ b/hybridse/src/codegen/type_ir_builder.cc @@ -16,8 +16,11 @@ #include "codegen/type_ir_builder.h" +#include "absl/status/status.h" +#include "codegen/date_ir_builder.h" #include "codegen/ir_base_builder.h" -#include "glog/logging.h" +#include "codegen/string_ir_builder.h" +#include "codegen/timestamp_ir_builder.h" #include "node/node_manager.h" namespace hybridse { @@ -102,13 +105,7 @@ bool TypeIRBuilder::IsStringPtr(::llvm::Type* type) { bool TypeIRBuilder::IsStructPtr(::llvm::Type* type) { if (type->getTypeID() == ::llvm::Type::PointerTyID) { type = reinterpret_cast<::llvm::PointerType*>(type)->getElementType(); - if (type->isStructTy()) { - DLOG(INFO) << "Struct Name " << type->getStructName().str(); - return true; - } else { - DLOG(INFO) << "Isn't Struct Type"; - return false; - } + return type->isStructTy(); } return false; } @@ -139,5 +136,37 @@ base::Status TypeIRBuilder::BinaryOpTypeInfer( return base::Status::OK(); } +absl::StatusOr CreateSafeNull(::llvm::BasicBlock* block, ::llvm::Type* type) { + node::DataType data_type; + if (!GetBaseType(type, &data_type)) { + return absl::InvalidArgumentError(absl::StrCat("can't get base type for: ", GetLlvmObjectString(type))); + } + + if (TypeIRBuilder::IsStructPtr(type)) { + std::unique_ptr builder = nullptr; + + switch (data_type) { + case node::DataType::kTimestamp: { + builder.reset(new TimestampIRBuilder(block->getModule())); + break; + } + case node::DataType::kDate: { + builder.reset(new DateIRBuilder(block->getModule())); + break; + } + case node::DataType::kVarchar: { + builder.reset(new StringIRBuilder(block->getModule())); + break; + } + default: + return absl::InvalidArgumentError(absl::StrCat("invalid struct type: ", GetLlvmObjectString(type))); + } + + return builder->CreateNull(block); + } + + return NativeValue(nullptr, nullptr, type); +} + } // namespace codegen } // namespace hybridse diff --git a/hybridse/src/codegen/type_ir_builder.h b/hybridse/src/codegen/type_ir_builder.h index ad7d5f225b9..e68d7f0233b 100644 --- a/hybridse/src/codegen/type_ir_builder.h +++ b/hybridse/src/codegen/type_ir_builder.h @@ -19,7 +19,9 @@ #include +#include "absl/status/statusor.h" #include "base/fe_status.h" +#include "codegen/native_value.h" #include "llvm/IR/Module.h" #include "llvm/IR/Type.h" #include "node/sql_node.h" @@ -90,6 +92,10 @@ class BoolIRBuilder : public TypeIRBuilder { } }; +// construct a safe null value for type +// returns NativeValue{raw, is_null=true} on success, raw is ensured to be not nullptr +absl::StatusOr CreateSafeNull(::llvm::BasicBlock* block, ::llvm::Type* type); + } // namespace codegen } // namespace hybridse #endif // HYBRIDSE_SRC_CODEGEN_TYPE_IR_BUILDER_H_ diff --git a/hybridse/src/udf/default_udf_library.cc b/hybridse/src/udf/default_udf_library.cc index fef776d3ffd..e6a546095ec 100644 --- a/hybridse/src/udf/default_udf_library.cc +++ b/hybridse/src/udf/default_udf_library.cc @@ -2190,11 +2190,7 @@ void DefaultUdfLibrary::InitTypeUdf() { .args(v1::string_to_date); RegisterExternal("timestamp") - .args(reinterpret_cast( - static_cast( - v1::date_to_timestamp))) - .return_by_arg(true) - .returns>() + .args(v1::date_to_timestamp) .doc(R"( @brief Cast int64, date or string expression to timestamp @@ -2217,11 +2213,7 @@ void DefaultUdfLibrary::InitTypeUdf() { @endcode @since 0.1.0)"); RegisterExternal("timestamp") - .args(reinterpret_cast( - static_cast( - v1::string_to_timestamp))) - .return_by_arg(true) - .returns>(); + .args(v1::string_to_timestamp); } void DefaultUdfLibrary::InitTimeAndDateUdf() { From 5c6b40c6c0d02cbc2164ceec34d2e91f8a896fba Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Fri, 27 Oct 2023 11:16:53 +0800 Subject: [PATCH 081/111] build: upgrade thirdparty to 0.6.0 (#3557) * build: upgrade thirdparty to 0.6.0 * fix: dockerfile * fix(single_tablet_test): pure virtual method call called --- Makefile | 44 +++++++++++++++++++------------ docker/Dockerfile | 6 ++--- src/nameserver/name_server_impl.h | 7 ++++- src/sdk/mini_cluster.h | 10 ++++--- third-party/CMakeLists.txt | 8 +++--- 5 files changed, 45 insertions(+), 30 deletions(-) diff --git a/Makefile b/Makefile index 697b12923af..bf6c95054dd 100644 --- a/Makefile +++ b/Makefile @@ -139,29 +139,39 @@ THIRD_PARTY_BUILD_DIR ?= $(MAKEFILE_DIR)/.deps THIRD_PARTY_SRC_DIR ?= $(MAKEFILE_DIR)/thirdsrc THIRD_PARTY_DIR ?= $(THIRD_PARTY_BUILD_DIR)/usr -# trick: for those compile inside hybridsql docker image, thirdparty is pre-installed in /deps/usr. -# we check this by asserting if the environment variable '$THIRD_PARTY_DIR' is defined to '/deps/usr', -# if true, thirdparty download is skipped -# zetasql check separately since it update more frequently: -# it will updated if the variable '$ZETASQL_VERSION' (defined in docker) not equal to that defined in current code -override GREP_PATTERN = "set(ZETASQL_VERSION" +override ZETASQL_PATTERN = "set(ZETASQL_VERSION" +override THIRD_PATTERN = "set(HYBRIDSQL_ASSERTS_VERSION" +new_zetasql_version := $(shell grep $(ZETASQL_PATTERN) third-party/cmake/FetchZetasql.cmake | sed 's/[^0-9.]*\([0-9.]*\).*/\1/') +new_third_version := $(shell grep $(THIRD_PATTERN) third-party/CMakeLists.txt | sed 's/[^0-9.]*\([0-9.]*\).*/\1/') + thirdparty-fast: @if [ $(THIRD_PARTY_DIR) != "/deps/usr" ] ; then \ echo "[deps]: install thirdparty and zetasql"; \ $(MAKE) thirdparty; \ - elif [ -n "$(ZETASQL_VERSION)" ]; then \ - new_zetasql_version=$(shell grep $(GREP_PATTERN) third-party/cmake/FetchZetasql.cmake | sed 's/[^0-9.]*\([0-9.]*\).*/\1/'); \ - if [ "$$new_zetasql_version" != "$(ZETASQL_VERSION)" ] ; then \ - echo "[deps]: thirdparty up-to-date. reinstall zetasql from $(ZETASQL_VERSION) to $$new_zetasql_version"; \ - $(MAKE) thirdparty-configure; \ - $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) --target zetasql; \ - else \ - echo "[deps]: all up-to-date. zetasql already installed with version: $(ZETASQL_VERSION)"; \ - fi; \ else \ - echo "[deps]: install zetasql only"; \ $(MAKE) thirdparty-configure; \ - $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) --target zetasql; \ + if [ -n "$(ZETASQL_VERSION)" ] ; then \ + if [ "$(new_zetasql_version)" != "$(ZETASQL_VERSION)" ] ; then \ + echo "[deps]: installing zetasql from $(ZETASQL_VERSION) to $(new_zetasql_version)"; \ + $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) --target zetasql; \ + else \ + echo "[deps]: zetasql up-to-date with version: $(ZETASQL_VERSION)"; \ + fi; \ + else \ + echo "[deps]: installing latest zetasql"; \ + $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) --target zetasql; \ + fi; \ + if [ -n "$(THIRDPARTY_VERSION)" ]; then \ + if [ "$(new_third_version)" != "$(THIRDPARTY_VERSION)" ] ; then \ + echo "[deps]: installing thirdparty from $(THIRDPARTY_VERSION) to $(new_third_version)"; \ + $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) --target hybridsql-asserts; \ + else \ + echo "[deps]: thirdparty up-to-date: $(THIRDPARTY_VERSION)"; \ + fi ; \ + else \ + echo "[deps]: installing latest thirdparty"; \ + $(CMAKE_PRG) --build $(THIRD_PARTY_BUILD_DIR) --target hybridsql-asserts; \ + fi ; \ fi # third party compiled code install to 'OpenMLDB/.deps/usr', source code install to 'OpenMLDB/thirdsrc' diff --git a/docker/Dockerfile b/docker/Dockerfile index d478a84d87f..9faef4db550 100644 --- a/docker/Dockerfile +++ b/docker/Dockerfile @@ -15,8 +15,8 @@ FROM centos:7 -ARG ZETASQL_VERSION=0.3.0 -ARG THIRDPARTY_VERSION=0.5.2 +ARG ZETASQL_VERSION=0.3.1 +ARG THIRDPARTY_VERSION=0.6.0 ARG TARGETARCH LABEL org.opencontainers.image.source https://github.com/4paradigm/OpenMLDB @@ -28,8 +28,6 @@ RUN yum update -y && yum install -y centos-release-scl epel-release && \ curl -Lo lcov-1.15-1.noarch.rpm https://github.com/linux-test-project/lcov/releases/download/v1.15/lcov-1.15-1.noarch.rpm && \ yum localinstall -y lcov-1.15-1.noarch.rpm && \ yum clean all && rm -v lcov-1.15-1.noarch.rpm && \ - curl -Lo apache-maven-3.6.3-bin.tar.gz https://mirrors.ocf.berkeley.edu/apache/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz && \ - tar xzf apache-maven-3.6.3-bin.tar.gz -C /usr/local --strip-components=1 && \ curl -Lo zookeeper.tar.gz https://archive.apache.org/dist/zookeeper/zookeeper-3.4.14/zookeeper-3.4.14.tar.gz && \ mkdir -p /deps/src && \ tar xzf zookeeper.tar.gz -C /deps/src && \ diff --git a/src/nameserver/name_server_impl.h b/src/nameserver/name_server_impl.h index 4bfe84ad5f4..b9755c4aa1c 100644 --- a/src/nameserver/name_server_impl.h +++ b/src/nameserver/name_server_impl.h @@ -111,7 +111,12 @@ class NameServerImpl : public NameServer { NameServerImpl(); ~NameServerImpl() override; - + void CloseThreadpool() { + running_.store(false, std::memory_order_release); + thread_pool_.Stop(true); + task_thread_pool_.Stop(true); + UpdateTableStatus(); + } bool Init(const std::string& real_endpoint); bool Init(const std::string& zk_cluster, const std::string& zk_path, const std::string& endpoint, const std::string& real_endpoint); diff --git a/src/sdk/mini_cluster.h b/src/sdk/mini_cluster.h index 321df05b761..439a311f243 100644 --- a/src/sdk/mini_cluster.h +++ b/src/sdk/mini_cluster.h @@ -105,7 +105,7 @@ class MiniCluster { } } sleep(4); - ::openmldb::nameserver::NameServerImpl* nameserver = new ::openmldb::nameserver::NameServerImpl(); + nameserver = new ::openmldb::nameserver::NameServerImpl(); bool ok = nameserver->Init(zk_cluster_, zk_path_, ns_endpoint, ""); if (!ok) { return false; @@ -135,6 +135,7 @@ class MiniCluster { } void Close() { + nameserver->CloseThreadpool(); ns_.Stop(10); ns_.Join(); @@ -207,7 +208,7 @@ class MiniCluster { tb_clients_.emplace(tb_endpoint, client); return true; } - + ::openmldb::nameserver::NameServerImpl* nameserver; int32_t zk_port_; brpc::Server ns_; int32_t tablet_num_; @@ -250,7 +251,7 @@ class StandaloneEnv { FLAGS_sync_deploy_stats_timeout = 2000; ns_port_ = GenRand(); std::string ns_endpoint = "127.0.0.1:" + std::to_string(ns_port_); - ::openmldb::nameserver::NameServerImpl* nameserver = new ::openmldb::nameserver::NameServerImpl(); + nameserver = new ::openmldb::nameserver::NameServerImpl(); bool ok = nameserver->Init("", "", ns_endpoint, ""); if (!ok) { return false; @@ -278,6 +279,7 @@ class StandaloneEnv { } void Close() { + nameserver->CloseThreadpool(); ns_.Stop(10); ns_.Join(); tb_server_.Stop(10); @@ -323,7 +325,7 @@ class StandaloneEnv { tb_client_ = client; return true; } - + ::openmldb::nameserver::NameServerImpl* nameserver; brpc::Server ns_; brpc::Server tb_server_; std::string ns_endpoint_; diff --git a/third-party/CMakeLists.txt b/third-party/CMakeLists.txt index 88fc0a877dc..6a7f8cb0e07 100644 --- a/third-party/CMakeLists.txt +++ b/third-party/CMakeLists.txt @@ -68,7 +68,7 @@ set(MAKEOPTS "$ENV{MAKEOPTS}" CACHE STRING "Extra options to make") message(STATUS "Install bundled dependencies into ${DEPS_INSTALL_DIR}") set(HYBRIDSQL_ASSERTS_HOME https://github.com/4paradigm/hybridsql-asserts) -set(HYBRIDSQL_ASSERTS_VERSION 0.5.2) +set(HYBRIDSQL_ASSERTS_VERSION 0.6.0) function(get_linux_lsb_release_information) execute_process(COMMAND bash ${CMAKE_SOURCE_DIR}/get-lsb-release.sh @@ -90,17 +90,17 @@ function(init_hybridsql_thirdparty_urls) else() if (LSB_RELEASE_ID_SHORT STREQUAL "centos") set(HYBRIDSQL_ASSERTS_URL "${HYBRIDSQL_ASSERTS_HOME}/releases/download/v${HYBRIDSQL_ASSERTS_VERSION}/thirdparty-${HYBRIDSQL_ASSERTS_VERSION}-linux-gnu-x86_64-centos.tar.gz" PARENT_SCOPE) - set(HYBRIDSQL_ASSERTS_HASH 919ee7aee4c89846f4e242530519b3c34a34567ddcf9f4361d413a44e2f7408c PARENT_SCOPE) + set(HYBRIDSQL_ASSERTS_HASH c415dfdc95a127cdce888aec84c7fa3c02f3c9cb973805dcf23b54517e422e36 PARENT_SCOPE) elseif(LSB_RELEASE_ID_SHORT STREQUAL "ubuntu") set(HYBRIDSQL_ASSERTS_URL "${HYBRIDSQL_ASSERTS_HOME}/releases/download/v${HYBRIDSQL_ASSERTS_VERSION}/thirdparty-${HYBRIDSQL_ASSERTS_VERSION}-linux-gnu-x86_64-ubuntu.tar.gz" PARENT_SCOPE) - set(HYBRIDSQL_ASSERTS_HASH 8bb1f7685bf778539e1f4ba499020504ebc89e8cefa9a294aa0122578ca70716 PARENT_SCOPE) + set(HYBRIDSQL_ASSERTS_HASH 8c95b5fd539c8362d934ae58879d9ae1c27bc0977ca09cc8316ba207e8aaaf1e PARENT_SCOPE) else() message(FATAL_ERROR "no pre-compiled thirdparty for your operation system, try compile thirdparty from source with '-DBUILD_BUNDLED=ON'") endif() endif() elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin") set(HYBRIDSQL_ASSERTS_URL "${HYBRIDSQL_ASSERTS_HOME}/releases/download/v${HYBRIDSQL_ASSERTS_VERSION}/thirdparty-${HYBRIDSQL_ASSERTS_VERSION}-darwin-i386.tar.gz" PARENT_SCOPE) - set(HYBRIDSQL_ASSERTS_HASH 663b0d945c95034b1e17411f3e795f98053bf248860a60025c7802634ce526d8 PARENT_SCOPE) + set(HYBRIDSQL_ASSERTS_HASH 062e606f1d76fe27003bdc23e643305bfa032eadec8c075e7ce6dc22d70f5044 PARENT_SCOPE) endif() endfunction() From 4f49313490ed99e6a0124fd8798fa0ba9457ef8b Mon Sep 17 00:00:00 2001 From: TanZiYen <104113819+TanZiYen@users.noreply.github.com> Date: Tue, 31 Oct 2023 16:48:40 +0800 Subject: [PATCH 082/111] docs: update-quickstart-concepts-folder (#3536) * Docs: Update-quickstart-concepts-folder * Docs: update-quickstart-concepts-index-file * Delete docs/en/quickstart/concepts/images/desktop.ini * Update modes.md * Delete modes-request.png * Update modes.md * Docs: Update-quickstart-concept-modesflow-image * Docs: Update-quickstart-concept-modesflow-image --------- Co-authored-by: Siqi Wang --- .../quickstart/concepts/images/modes-flow.png | Bin 333650 -> 301508 bytes docs/en/quickstart/concepts/index.rst | 2 +- .../concepts/{workflow.md => modes.md} | 45 ++++++++---------- 3 files changed, 22 insertions(+), 25 deletions(-) rename docs/en/quickstart/concepts/{workflow.md => modes.md} (79%) diff --git a/docs/en/quickstart/concepts/images/modes-flow.png b/docs/en/quickstart/concepts/images/modes-flow.png index c4856e6a5f95c9e988d528fb09ecea7d581cbfaf..361353de760bcd219127b9fc56dba22040157acc 100644 GIT binary patch literal 301508 zcmeFZc{r5s-##w9EoE0BTT&=w-?vanLeXLuLbkCCGS)=YyON9&=dO({{a7I_PJpR zrlH~Cr2akDDMr?zp*hSkysCRQ$Zlbb@$ za!FU6UW>i=HS2!VVfeuf)4tyRvbX*G<{2Z;p|9ho?%ck5?d_%Gr=_k&971Gv#t;2S z@Dn#02$W#N20Sd#`$+~E>sngUO-wz@_#=1d_jCfVL{VP zesJLb{I=Qr%J`nJ)J&nRIYl%pctlw;FV;k`X)^tPE;E!KnS6ge?+Gb_w`gR);eWmH z>dS50|8?u?EdBrMJ__6Z`=;T47Xh%3|1QFR7vXo9_^&1W*Ao6~3BOn1zn1X-lO>o{ zt{)yu9HI$P?AqU+FI7aSA&0x?HI|X@iCwAhbB)uI5Ftx-isAd)>+Rg8A5p>)np&Gf 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zo~=cx@7G&#IUjpTEZHm9e*$yku-EiwTZb_3;hO;D|L?0{ar=x3^m}yLx~hu_tIR+9 N@ksFDnuF)l{tqT=w+R3M diff --git a/docs/en/quickstart/concepts/index.rst b/docs/en/quickstart/concepts/index.rst index d02cca2378f..27542f7f2f7 100644 --- a/docs/en/quickstart/concepts/index.rst +++ b/docs/en/quickstart/concepts/index.rst @@ -5,4 +5,4 @@ Concept .. toctree:: :maxdepth: 1 - workflow + modes diff --git a/docs/en/quickstart/concepts/workflow.md b/docs/en/quickstart/concepts/modes.md similarity index 79% rename from docs/en/quickstart/concepts/workflow.md rename to docs/en/quickstart/concepts/modes.md index 2ce5c58ff19..d27f33ab001 100644 --- a/docs/en/quickstart/concepts/workflow.md +++ b/docs/en/quickstart/concepts/modes.md @@ -6,7 +6,7 @@ OpenMLDB supports different execution modes at different stages of the feature e The following diagram illustrates the typical process of using OpenMLDB for feature engineering development and deployment, as well as the execution modes used in the process: -![image-20220310170024349](https://openmldb.ai/docs/zh/main/_images/modes-flow.png) +![image-20220310170024349](images/modes-flow.png) 1. Offline Data Import: Import offline data for offline feature engineering development and debugging. 2. Offline Feature Development: Develop feature engineering scripts and debug them until satisfactory results are achieved. This step involves joint debugging of machine learning models (such as XGBoost, LightGBM, etc.), but this article mainly focuses on feature engineering development related to OpenMLDB. @@ -16,57 +16,54 @@ The following diagram illustrates the typical process of using OpenMLDB for feat 6. Online Data Preview (optional): Preview and check online data using supported SQL commands. This step is not mandatory. 7. Real-time Feature Calculation: After the feature scheme is deployed and the data is correctly accessed, a real-time feature calculation service that can respond to online requests will be obtained. -## Overview of execution mode +## Overview of Execution Mode -As the data objects for offline and online scenarios are different, their underlying storage and computing nodes are also different. Therefore, OpenMLDB provides several built-in execution modes to support completing the above steps. The following table summarizes the execution modes and development tools used for each step, and three execution modes will be discussed in detail later. +As the data objects for offline and online scenarios are different, their underlying storage and computing nodes are also different. Therefore, OpenMLDB provides several built-in execution modes to support the above steps. The following table summarizes the execution modes and development tools used for each step, and three execution modes will be discussed in detail later. | Steps | Execution Mode | Development Tool | | ------------------------------ | ------------------- | ------------------------------------------------------------ | | 1. Offline Data Import | Offline Mode | OpenMLDB CLI, SDKs | -| Offline Feature Development | Offline Mode | OpenMLDB CLI, SDKs | -| Feature Deployment | Offline Mode | OpenMLDB CLI, SDKs | -| Cold Start Online Data Import | Online Preview Mode | OpenMLDB CLI, SDKs, [Data Import Tool](https://openmldb.ai/docs/zh/main/tutorial/data_import.html) | -| Real-time Data Integration | Online Preview Mode | Connectors, SDKs | -| Online Data Preview (optional) | Online Preview Mode | OpenMLDB CLI, SDKs, [Data Export Tool](https://openmldb.ai/docs/zh/main/tutorial/data_export.html) | -| Real-time Feature Calculation | Online Request Mode | CLI (REST APIs), SDKs | +| 2. Offline Feature Development | Offline Mode | OpenMLDB CLI, SDKs | +| 3. Feature Deployment | Offline Mode | OpenMLDB CLI, SDKs | +| 4. Cold Start Online Data Import | Online Preview Mode | OpenMLDB CLI, SDKs, [Data Import Tool](../../tutorial/data_import.md) | +| 5. Real-time Data Integration | Online Preview Mode | Connectors, SDKs | +| 6. Online Data Preview (optional) | Online Preview Mode | OpenMLDB CLI, SDKs, [Data Export Tool](../../tutorial/data_export.md) | +| 7. Real-time Feature Calculation | Online Request Mode | CLI (REST APIs), SDKs | ### Offline Mode -After starting OpenMLDB CLI, the **default mode is offline mode**. Offline data import, offline feature development, and feature deployment are all executed in offline mode. The purpose of offline mode is to manage and compute offline data. The computing nodes involved are supported by OpenMLDB Spark optimized for feature engineering, and the storage nodes support commonly used storage systems such as HDFS. +After starting OpenMLDB CLI, the **default mode is offline mode**. Offline data import, offline feature development, and feature deployment are all executed in offline mode. The purpose of offline mode is to manage and compute offline data. The computing nodes involved are supported by [OpenMLDB Spark Distribution](../../tutorial/openmldbspark_distribution.md) optimized for feature engineering, and the storage nodes support commonly used storage systems such as HDFS. Offline mode has the following main features: -- The offline mode supports most of the SQL syntax provided by OpenMLDB, including complex SQL syntaxes such as `LAST JOIN` and `WINDOW UNION`, which are optimized for feature engineering. - -- In offline mode, some SQL commands are executed asynchronously, such as `LOAD DATA`, `SELECT`, and `SELECT INTO` commands. Other SQL commands are executed synchronously. - +- The offline mode supports most of the SQL syntax provided by OpenMLDB, including complex SQL syntax such as `LAST JOIN` and `WINDOW UNION`. +- In offline mode, some SQL commands are executed asynchronously, such as `LOAD DATA`, `SELECT`, and `SELECT INTO`. Other SQL commands are executed synchronously. - The asynchronous SQL is managed by the internal TaskManager and can be viewed and managed through commands such as `SHOW JOBS`, `SHOW JOB`, and `STOP JOB`. -```{tip} -::: +:::{tip} Unlike many relational database systems, the `SELECT` command in offline mode is executed asynchronously by default. If you need to set it to synchronous execution, refer to setting the command to run synchronously in offline mode. During offline feature development, if asynchronous execution is used, it is strongly recommended to use the `SELECT INTO` statement for development and debugging, which can export the results to a file for easy viewing. ::: -``` -The `DEPLOY` command for feature deployment is also executed in offline mode. Its specification can refer to the OpenMLDB SQL online specification and requirements. + +The `DEPLOY` command for feature deployment is also executed in offline mode. Its specification can refer to the [OpenMLDB SQL online specification and requirements](../../openmldb_sql/deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md). Offline mode setting command (OpenMLDB CLI): `SET @@execute_mode='offline'`. -### Online preview mode +### Online Preview Mode Cold start online data import, real-time data access, and online data preview are executed in online preview mode. The purpose of the online preview mode is to manage and preview online data. Storage and computation of online data are supported by the tablet component. The main features of the online preview mode are: - `LOAD DATA`, used for online data import, can be done either locally (load_mode='local') or on the cluster (load_mode='cluster'). Local import is synchronous, while cluster import is asynchronous (same as in offline mode). Other operations are synchronous. -- Online preview mode is mainly used for previewing limited data. Selecting and viewing data directly through SELECT in OpenMLDB CLI or SDKs may result in data truncation. If the data volume is large, it is recommended to use an [export tool](https://openmldb.ai/docs/zh/main/tutorial/data_export.html) to view the complete data. -- SELECT statements in online preview mode currently do not support more complex queries such as `LAST JOIN` and `ORDER BY`. Refer to [SELECT](https://openmldb.ai/docs/zh/main/openmldb_sql/dql/SELECT_STATEMENT.html). +- Online preview mode is mainly used for previewing limited data. Selecting and viewing data directly through SELECT in OpenMLDB CLI or SDKs may result in data truncation. If the data volume is large, it is recommended to use an [export tool](../../tutorial/data_export.html) to view the complete data. +- SELECT statements in online preview mode currently do not support more complex queries such as `LAST JOIN` and `ORDER BY`. Refer to [SELECT](../../openmldb_sql/dql/SELECT_STATEMENT.html). - The server in the online preview mode executes SQL statements on a single thread. For large data processing, it may be slow and may trigger a timeout. To increase the timeout period, the `--request_timeout` can be configured on the client. -- To prevent impact on online services, online preview mode limits the maximum number of accessed records and the number of different keys. This can be configured using `--max_traverse_cnt` and `--max_traverse_key_cnt`. Similarly, the maximum result size can be set using `--scan_max_bytes_size`. For detailed configuration, refer to the configuration file. +- To prevent impact on online services, online preview mode limits the maximum number of accessed records and the number of different keys. This can be configured using `--max_traverse_cnt` and `--max_traverse_key_cnt`. Similarly, the maximum result size can be set using `--scan_max_bytes_size`. For detailed configuration, refer to the [configuration file](../../deploy/conf.md). The command for setting online preview mode in OpenMLDB CLI: `SET @@execute_mode='online'` -### Online request mode +### Online Request Mode After deploying feature scripts and accessing online data, the real-time feature computing service is ready to use, and real-time feature extraction can be performed through the online request mode. REST APIs and SDKs support the online request mode. The online request mode is a unique mode in OpenMLDB that supports real-time online computing and is very different from common SQL queries in databases. @@ -78,7 +75,7 @@ The online request mode requires three inputs: Based on the above inputs, for each real-time request row, the online request mode will return a feature extraction result. The computing logic is as follows: The request row is virtually inserted into the correct position of the online data table based on the logic in the SQL script (such as `PARTITION BY`, `ORDER BY`, etc.), and then only the feature aggregation computing is performed on that row, returning the unique corresponding extraction result. The following diagram intuitively explains the operation process of the online request mode. -![modes-request](https://openmldb.ai/docs/zh/main/_images/modes-request.png) +![modes-request](images/modes-request.png) Online request mode is supported in the following ways: From eeb37b6912f9d42acc2d4dd438a96b4c98fcf734 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Tue, 31 Oct 2023 17:05:34 +0800 Subject: [PATCH 083/111] fix: recoverdata and log print (#3545) * fix: ops log print * fix log and try recover all table --- tools/openmldb_ops.py | 9 +++++---- tools/tool.py | 8 +++++--- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/tools/openmldb_ops.py b/tools/openmldb_ops.py index c7ae0663b52..543c0bbfbf9 100644 --- a/tools/openmldb_ops.py +++ b/tools/openmldb_ops.py @@ -12,7 +12,7 @@ # See the License for the specific language governing permissions and # limitations under the License. import logging - +# for Python 2, don't use f-string log = logging.getLogger(__name__) import os import sys @@ -118,8 +118,8 @@ def RecoverPartition(executor, db, partitions, endpoint_status): db=db, table_name=table_name, pid=pid, leader_endpoint=leader_endpoint)) status = executor.LoadTable(leader_endpoint, table_name, tid, pid) if not status.OK(): - log.error("load table failed. db {db} name {table_name} tid {tid} pid {pid} endpoint {leader_endpoint} msg {status.GetMsg()}".format( - db=db, table_name=table_name, tid=tid, pid=pid, leader_endpoint=leader_endpoint, status=status)) + log.error("load table failed. db {db} name {table_name} tid {tid} pid {pid} endpoint {leader_endpoint} msg {status}".format( + db=db, table_name=table_name, tid=tid, pid=pid, leader_endpoint=leader_endpoint, status=status.GetMsg())) return Status(-1, "recover partition failed") if not partitions[leader_pos].IsAlive(): status = executor.UpdateTableAlive(db, table_name, pid, leader_endpoint, "yes") @@ -204,8 +204,9 @@ def RecoverData(executor): log.error("get all table failed") return for name in tables: + # if recover failed, continue to recover next table if not RecoverTable(executor, db, name).OK(): - return + log.error("recover table failed. db {db} name {name}, check log for detail".format(db=db, name=name)) def ChangeLeader(db, partition, src_endpoint, desc_endpoint, one_replica, restore = True): log.info( diff --git a/tools/tool.py b/tools/tool.py index e64b172b49b..cff6eb1db98 100644 --- a/tools/tool.py +++ b/tools/tool.py @@ -16,6 +16,7 @@ import subprocess import sys import time +# for Python 2, don't use f-string log = logging.getLogger(__name__) logging.basicConfig(level=logging.INFO, format = '%(levelname)s: %(message)s') @@ -276,6 +277,7 @@ def LoadTable(self, endpoint, name, tid, pid, sync = True): cmd = list(self.tablet_base_cmd) cmd.append("--endpoint=" + self.endpoint_map[endpoint]) cmd.append("--cmd=loadtable {} {} {} 0 8".format(name, tid, pid)) + log.info("run {cmd}".format(cmd = cmd)) status, output = self.RunWithRetuncode(cmd) time.sleep(1) if status.OK() and output.find("LoadTable ok") != -1: @@ -289,12 +291,12 @@ def LoadTable(self, endpoint, name, tid, pid, sync = True): if table_stat == "kTableNormal": return Status() elif table_stat == "kTableLoading" or table_stat == "kTableUndefined": - log.info("table is loading... tid {tid} pid {pid}".format(tid, pid)) + log.info("table is loading... tid {tid} pid {pid}".format(tid = tid, pid = pid)) else: - return Status(-1, "table stat is {table_stat}".format(table_stat)) + return Status(-1, "table stat is {table_stat}".format(table_stat = table_stat)) time.sleep(2) - return Status(-1, "execute load table failed") + return Status(-1, "execute load table failed, status {msg}, output {output}".format(msg = status.GetMsg(), output = output)) def GetLeaderFollowerOffset(self, endpoint, tid, pid): cmd = list(self.tablet_base_cmd) From f864f8c83d0ec002e86dcede2b6825086f5618a2 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Tue, 31 Oct 2023 17:06:34 +0800 Subject: [PATCH 084/111] feat: full inspect (#3559) * feat: full inspect * docs: diag and must read --- docs/zh/maintain/diagnose.md | 117 ++++- docs/zh/quickstart/beginner_must_read.md | 24 +- python/openmldb_tool/README.md | 16 +- .../openmldb_tool/diagnostic_tool/diagnose.py | 66 ++- .../openmldb_tool/diagnostic_tool/inspect.py | 410 ++++++++++++++++++ python/openmldb_tool/diagnostic_tool/pb.py | 118 +++++ python/openmldb_tool/diagnostic_tool/rpc.py | 124 ++---- .../diagnostic_tool/table_checker.py | 116 +++-- python/openmldb_tool/setup.py | 6 +- python/openmldb_tool/tests/inspect_test.py | 355 +++++++++++++++ src/proto/tablet.proto | 2 +- 11 files changed, 1165 insertions(+), 189 deletions(-) create mode 100644 python/openmldb_tool/diagnostic_tool/inspect.py create mode 100644 python/openmldb_tool/diagnostic_tool/pb.py create mode 100644 python/openmldb_tool/tests/inspect_test.py diff --git a/docs/zh/maintain/diagnose.md b/docs/zh/maintain/diagnose.md index eef7db5b5a1..cb5d7a30f74 100644 --- a/docs/zh/maintain/diagnose.md +++ b/docs/zh/maintain/diagnose.md @@ -8,14 +8,76 @@ 安装方式与使用: ```bash -pip install openmldb-tool # openmldb-tool[rpc] +pip install openmldb-tool # openmldb-tool[pb] openmldb_tool # 注意下划线 ``` 有以下几个子命令可选择执行: ```bash -usage: openmldb_tool [-h] [--helpfull] {status,inspect,test,static-check} ... +usage: openmldb_tool [-h] [--helpfull] {status,inspect,rpc,test,static-check} ... ``` -只有`static-check`静态检查命令需要指定`--dist_conf`参数,该参数指定OpenMLDB节点分布的配置文件。其他命令只需要`--cluster`参数,格式为`/`,默认为镜像中的OpenMLDB集群地址`127.0.0.1:2181/openmldb`。如果是自行设置的OpenMLDB集群,请配置此参数。 + +注意`-c/--cluster`参数,格式为`/`,默认将访问`127.0.0.1:2181/openmldb`。如果是自行设置的OpenMLDB集群,请配置此参数。其他参数根据子命令不同而不同,可以使用`-h`查看,或查看各个子命令的详细文档。 + +### 一键inspect + +`openmldb_tool inspect [--cluster=0.0.0.0:2181/openmldb]`可以一键查询,得到完整的集群状态报告。如果需要局部视角或额外的诊断功能,才需要其他子命令。 + +报告分为几个板块,其中如果所有表都是健康的,不会展示Ops和Partitions板块。用户首先看报告末尾的总结 summary & hint,如果存在server offline(红色),需先重启server,保证server尤其是TabletServer都在线。server重启后,集群可能会尝试自动修复,自动修复也可能会失败,所以,用户有必要等待一定时间后再次inspect。此时如果仍然有不健康的表,可以检查它们的状态,Fatal表需要尽快修复,它们可能会读写失败,Warn表,用户可以考虑推迟修复。修复方式见报告末尾提供的文档。 + +`inspect`可配置参数除了`--cluster/-c`,还可配置不显示彩色`--nocolor/-noc`方便复制,以及`--table_width/-tw n`配置表格宽度,`--offset_diff_thresh/-od n`配置offset diff的报警阈值。 + +``` +diagnosing cluster xxx + + +Server Detail +{server map} +{server online/offline report} + + +Table Partitions Detail +tablet server order: {tablet ip -> idx} +{partition tables of unhealthy tables} +Example: +{a detailed description of partition table} + + +Ops Detail +> failed ops do not mean cluster is unhealthy, just for reference +last one op(check time): {} +last 10 ops != finished: +{op list} + + + +================== +Summary & Hint +================== +Server: + +{online | offline servers ['[tablet]xxx'], restart them first} + +Table: +{all healthy | unhealthy tables desc} +[]Fatal/Warn table, {read/write may fail or still work}, {repair immediatly or not} +{partition detail: if leader healthy, if has unhealthy replicas, if offset too large, related ops} + + Make sure all servers online, and no ops for the table is running. + Repair table manually, run recoverdata, check https://openmldb.ai/docs/zh/main/maintain/openmldb_ops.html. + Check 'Table Partitions Detail' above for detail. +``` + +### 其他常用命令 + +除了一键inspect,在这样几个场景中,我们推荐使用诊断工具的子命令来帮助用户判断集群状态、简化运维。 + +- 部署好集群后,可以使用`test`测试集群是否能正常工作,不需要用户手动测试。如果发现问题,再使用`inspect`诊断。 +- 组件都在线,但出现超时或错误提示某组件无法连接时,可以使用`status --conn`检查与各组件的连接,会打印出简单访问的耗时。也可以用它来测试客户端主机与集群的连接情况,及时发现网络隔离。 +- 离线job如果出现问题,`SHOW JOBLOG id`可以查看日志,但经验较少的用户可能会被日志中的无关信息干扰,可以使用`inspect job`来提取job日志中的关键信息。 +- 离线job太多时,CLI中的展示会不容易读,可以使用`inspect offline`筛选所有failed的job,或者`inspect job --state `来筛选出特定状态的job。 +- 在一些棘手的问题中,可能需要用户通过RPC来获得一些信息,帮助定位问题。`openmldb_tool rpc`可以帮助用户简单快速地调用RPC,降低运维门槛。 +- 没有Prometheus监控时,可以通过`inspect online --dist`获得数据分布信息。 +- 如果你的操作节点到各个组件的机器是ssh免密的,那么,可以使用`static-check`检查配置文件是否正确,版本是否统一,避免部署失败。还可以一键收集整个集群的日志,方便打包并提供给开发人员分析。 ## 子命令详情 @@ -29,7 +91,8 @@ usage: openmldb_tool status [-h] [--helpfull] [--diff] optional arguments: -h, --help show this help message and exit --helpfull show full help message and exit - --diff check if all endpoints in conf are in cluster. If set, need to set `--conf_file` + --diff check if all endpoints in conf are in cluster. If set, need to set `-f,--conf_file` + --conn check network connection of all servers ``` - 简单查询集群状态: @@ -48,6 +111,11 @@ optional arguments: +-----------------+-------------+---------------+--------+---------+ ``` +- 检查并测试集群链接与版本: + ``` + openmldb_tool status --conn + ``` + #### 检查配置文件与集群状态是否一致 如果指定`--diff`参数,会检查配置文件中的所有节点是否都在已经启动的集群中,如果有节点不在集群中,会输出异常信息。如果集群中有节点不在配置文件中,不会输出异常信息。需要配置`-f,--conf_file`,例如,你可以在镜像里这样检查: @@ -57,7 +125,8 @@ openmldb_tool status --diff -f=/work/openmldb/conf/hosts ### inspect 检查 -`inspect`用于检查集群的在线和离线两个部分是否正常工作,可以选择单独检查`online`或`offline`,不指定则都检查。可以定期执行检查,以便及时发现异常。 +如果是为了检查集群状态,更推荐一键`inspect`获取集群完整检查报告,`inspect`子命令是更具有针对性的检查。 + ``` openmldb_tool inspect -h usage: openmldb_tool inspect [-h] [--helpfull] {online,offline,job} ... @@ -68,19 +137,26 @@ positional arguments: offline only inspect offline jobs. job show jobs by state, show joblog or parse joblog by id. ``` -在线检查会检查集群中的表状态(包括系统表),并输出有异常的表,包括表的状态,分区信息,副本信息等,等价于`SHOW TABLE STATUS`并筛选出有异常的表。如果发现集群表现不正常,请先检查下是否有异常表。例如,`SHOW JOBS`无法正常输出历史任务时,可以`inspect online`检查一下是否是job系统表出现问题。 + +#### online在线检查 + +`inspect online`检查在线表的健康状态,并输出有异常的表,包括表的状态,分区信息,副本信息等,等价于`SHOW TABLE STATUS`并筛选出有异常的表。 ##### 检查在线数据分布 -在线检查中,可以使用`inspect online --dist`检查在线数据分布,默认检查所有数据库,可以使用`--db`指定要检查的数据库。若要查询多个数据库,请使用 ',' 分隔数据库名称。会输出数据库在各个节点上的数据分布情况。 +可以使用`inspect online --dist`检查在线数据分布,默认检查所有数据库,可以使用`--db`指定要检查的数据库。若要查询多个数据库,请使用 ',' 分隔数据库名称。会输出数据库在各个节点上的数据分布情况。 -#### 离线检查 +#### offline离线检查 -离线检查会输出最终状态为失败的任务(不检查“运行中”的任务),等价于`SHOW JOBS`并筛选出失败任务。 +`inspect offline`离线检查会输出最终状态为失败的任务(不检查“运行中”的任务),等价于`SHOW JOBS`并筛选出失败任务。更多功能待补充。 #### JOB 检查 -JOB 检查会检查集群中的离线任务,可以使用`inspect job`或`inspect job --state all`查询所有任务,等价于`SHOW JOBS`并按job_id排序。使用`inspect job --state `可以筛选出特定状态的日志,可以使用 ',' 分隔,同时查询不同状态的日志。例如:`inspect offline` 相当于`inspect job --state failed,killed,lost`即筛选出所有失败的任务。 +JOB 检查是更灵活的离线任务检查命令,可以按条件筛选job,或针对单个job日志进行分析。 + +##### 按state筛选 + +可以使用`inspect job`或`inspect job --state all`查询所有任务,等价于`SHOW JOBS`并按job_id排序。使用`inspect job --state `可以筛选出特定状态的日志,可以使用 ',' 分隔,同时查询不同状态的日志。例如:`inspect offline` 相当于`inspect job --state failed,killed,lost`即筛选出所有失败的任务。 以下是一些常见的state: @@ -93,8 +169,13 @@ JOB 检查会检查集群中的离线任务,可以使用`inspect job`或`inspe 更多state信息详见[Spark State]( https://spark.apache.org/docs/3.2.1/api/java/org/apache/spark/launcher/SparkAppHandle.State.html),[Yarn State](https://hadoop.apache.org/docs/current/api/org/apache/hadoop/yarn/api/records/YarnApplicationState.html) +##### 解析单个JOB日志 -使用`inspect job --id `查询指定任务的log日志,其结果会使用配置文件筛选出主要错误信息。如需更新配置文件,可以添加`--conf-update`,并且可以使用`--conf-url`配置镜像源,例如使用`--conf-url https://openmldb.ai/download/diag/common_err.yml`配置国内镜像。如果需要完整的日志信息,可以添加`--detail`获取详细信息。 +使用`inspect job --id `查询指定任务的log日志,其结果会使用配置文件筛选出主要错误信息。 + +解析依靠配置文件,默认情况会自动下载。如需更新配置文件,可以`--conf-update`,它将会在解析前强制下载一次配置文件。如果默认下载源不合适,可以同时配置`--conf-url`配置镜像源,例如使用`--conf-url https://openmldb.ai/download/diag/common_err.yml`配置国内镜像。 + +如果只需要完整的日志信息而不是解析日志的结果,可以使用`--detail`获取详细信息,不会打印解析结果。 ### test 测试 @@ -185,7 +266,6 @@ nameserver: 如果检查配置文件或日志,将会把收集到的文件保存在`--collect_dir`中,默认为`/tmp/diag_collect`。你也也可以访问此目录查看收集到的配置或日志,进行更多的分析。 - #### 检查示例 在镜像容器中可以这样静态检查: @@ -193,14 +273,15 @@ nameserver: openmldb_tool static-check --conf_file=/work/openmldb/conf/hosts -VCL --local ``` -### rpc +### RPC 接口 + +`openmldb_tool`还提供了一个RPC接口,它可以让我们发送RPC更容易,不需要定位Server的IP,拼接RPC方法URL路径,也可以提示所有RPC方法和RPC方法的输入结构。使用方式是`openmldb_tool rpc`,例如,`openmldb_tool rpc ns ShowTable --field '{"show_all":true}'`可以调用`nameserver`的`ShowTable`接口,获取表的状态信息。 -`openmldb_tool`还提供了一个RPC接口,但它是一个额外组件,需要通过`pip install openmldb-tool[rpc]`安装。使用方式是`openmldb_tool rpc`,例如,`openmldb_tool rpc ns ShowTable --field '{"show_all":true}'`可以调用`nameserver`的`ShowTable`接口,获取表的状态信息。 +其中组件不使用ip,可以直接使用角色名。NameServer与TaskManager只有一个活跃,所以我们用ns和tm来代表这两个组件。而TabletServer有多个,我们用`tablet1`,`tablet2`等来指定某个TabletServer,从1开始,顺序可通过`openmldb_tool rpc`或`openmldb_tool status`来查看。 -NameServer与TaskManager只有一个活跃,所以我们用ns和tm来代表这两个组件。 -而TabletServer有多个,我们用`tablet1`,`tablet2`等来指定某个TabletServer,顺序可通过`openmldb_tool rpc`或`openmldb_tool status`来查看。 +如果对RPC服务的方法或者输入参数不熟悉,可以通过`openmldb_tool rpc [method] --hint`查看帮助信息。但它是一个额外组件,需要通过`pip install openmldb-tool[pb]`安装。hint还需要额外的pb文件,帮助解析输入参数,默认是从`/tmp/diag_cache`中读取,如果不存在则自动下载。如果你已有相应的文件,或者已经手动下载,可以通过`--pbdir`指定该目录。自行编译pb文件,见[openmldb tool开发文档](https://github.com/4paradigm/OpenMLDB/blob/main/python/openmldb_tool/README.md#rpc)。 -如果对RPC服务的方法或者输入参数不熟悉,可以通过`openmldb_tool rpc [method] --hint`查看帮助信息。例如: +例如: ```bash $ openmldb_tool rpc ns ShowTable --hint ... @@ -212,9 +293,7 @@ You should input json like this, ignore round brackets in the key and double quo "(optional)show_all": "bool" }' ``` -hint还需要额外的pb文件,帮助解析输入参数,默认是从`/tmp/diag_cache`中读取,如果不存在则自动下载。如果你已有相应的文件,或者已经手动下载,可以通过`--pbdir`指定该目录。 ## 附加 可使用`openmldb_tool --helpfull`查看所有配置项。例如,`--sdk_log`可以打印sdk的日志(zk,glog),可用于调试。 - \ No newline at end of file diff --git a/docs/zh/quickstart/beginner_must_read.md b/docs/zh/quickstart/beginner_must_read.md index f5ba729613f..def0e3728d1 100644 --- a/docs/zh/quickstart/beginner_must_read.md +++ b/docs/zh/quickstart/beginner_must_read.md @@ -2,6 +2,20 @@ 由于OpenMLDB是分布式系统,多种模式,客户端丰富,初次使用可能会有很多疑问,或者遇到一些运行、使用问题,本文从新手使用的角度,讲解如何进行诊断调试,需求帮助时如何提供有效信息给技术人员等等。 +## 错误诊断 + +在使用OpenMLDB的过程中,除了SQL语法错误,其他错误信息可能不够直观,但很可能与集群状态有关。所以,错误诊断需要**先确认集群状态**。在发现错误时,请先使用诊断工具的一键诊断功能。一键诊断可以输出全面直观的诊断报告,如果不能使用此工具,可以手动执行`SHOW COMPONENTS;`和`SHOW TABLE STATUS LIKE '%';`提供部分信息。 + +报告将展示集群的组件、在线表等状态,也会提示用户如何修复,请按照报告内容进行操作,详情见[一键inspect](../maintain/diagnose.md#一键inspect)。 + +``` +openmldb_tool inspect [-c=0.0.0.0:2181/openmldb] +``` + +需要注意,由于离线存储只会在执行离线job时被读取,而离线job也不是一个持续的状态,所以,一键诊断只能展示TaskManager组件状态,不会诊断离线存储,也无法诊断离线job的执行错误,离线job诊断见[离线SQL执行](#离线)。 + +如果诊断报告认为集群健康,但仍然无法解决问题,请提供错误和诊断报告给我们。 + ## 创建OpenMLDB与连接 首先,我们建议不熟悉分布式多进程管理的新手使用docker创建OpenMLDB,方便快速上手。熟悉OpenMLDB各组件之后,再尝试分布式部署。 @@ -71,12 +85,14 @@ create table t1(c1 int; 如果是集群离线命令,默认异步模式下,发送命令会得到job id的返回。可使用`show job `来查询job执行情况。 -离线job如果是异步SELECT(并不INTO保存结果),也不会将结果打印在客户端(同步SELECT将会打印结果)。可以通过`show joblog `来获得结果,结果中包含stdout和stderr两部分,stdout为查询结果,stderr为job运行日志。如果发现job failed或者其他状态,不符合你的预期,请仔细查看job运行日志。 +离线job如果是异步SELECT(并不INTO保存结果),也不会将结果打印在客户端,而同步SELECT将会打印结果到控制台。可以通过`show joblog `来获得结果,结果中包含stdout和stderr两部分,stdout为查询结果,stderr为job运行日志。如果发现job failed或者其他状态,不符合你的预期,请仔细查看job运行日志。 -```{note} -日志地址由taskmanager.properties的`job.log.path`配置,如果你改变了此配置项,需要到配置的目的地寻找日志。stdout日志默认在`/work/openmldb/taskmanager/bin/logs/job_x.log`,job运行日志默认在`/work/openmldb/taskmanager/bin/logs/job_x_error.log`(注意有error后缀), +离线job日志中可能有一定的干扰日志,用户可以使用`openmldb_tool inspect job --id x`进行日志的解析提取,帮助定位错误,更多信息请参考[诊断工具job检查](../maintain/diagnose.md#job-检查)。 -如果taskmanager是yarn模式,而不是local模式,`job_x_error.log`中的信息会较少,不会有job错误的详细信息。需要通过`job_x_error.log`中记录的yarn app id,去yarn系统中查询job的真正错误原因。 +如果taskmanager是yarn模式,而不是local模式,`job_x_error.log`中的信息会较少,只会打印异常。如果异常不直观,需要更早时间的执行日志,执行日志不在`job_x_error.log`中,需要通过`job_x_error.log`中记录的yarn app id,去yarn系统中查询yarn app的container的日志。yarn app container里,执行日志也保存在stderr中。 + +```{note} +如果你无法通过show joblog获得日志,或者想要直接拿到日志文件,可以直接在TaskManager机器上获取。日志地址由taskmanager.properties的`job.log.path`配置,如果你改变了此配置项,需要到配置的目录中寻找日志。stdout查询结果默认在`/work/openmldb/taskmanager/bin/logs/job_x.log`,stderr job运行日志默认在`/work/openmldb/taskmanager/bin/logs/job_x_error.log`(注意有error后缀)。 ``` #### 在线 diff --git a/python/openmldb_tool/README.md b/python/openmldb_tool/README.md index 3381751edf9..d5168a4bf25 100644 --- a/python/openmldb_tool/README.md +++ b/python/openmldb_tool/README.md @@ -48,21 +48,27 @@ status [-h] [--helpfull] [--diff DIFF] optional arguments: -h, --help show this help message and exit --helpfull show full help message and exit - --diff check if all endpoints in conf are in cluster. If set, need to set `--conf_file` + --diff check if all endpoints in conf are in cluster. If set, need to set `-f,--conf_file` ``` Use `show components` to show servers(no apiserver now). +--conn: +- ping all servers, brpc /health to check ok,and +- online servers version and cost time, we can get from brpc http:///version. (ns,tablet, apiserver set_version in brpc server) + TODO: -- ping all servers, brpc /health to check ok -- online servers version, we can get from brpc http:///version. (ns,tablet, apiserver set_version in brpc server) - brpc /flags to get all gflags(including openmldb), `--enable_flags_service=true` required ## Inspect -Use `show table status like '%';` in all dbs, even the hidden db(system db). +`inspect` for full report, no offline diag now. + +inspect online: Use `show table status like '%';` in all dbs, even the hidden db(system db). + +inspect offline: failed jobs, no more info. TODO: check register table? -If you found some online tables are not behaving properly, do inspect online. +inspect job: full support of offline job, select jobs, parse job log ## Test diff --git a/python/openmldb_tool/diagnostic_tool/diagnose.py b/python/openmldb_tool/diagnostic_tool/diagnose.py index 8bd67719489..21ee2961421 100644 --- a/python/openmldb_tool/diagnostic_tool/diagnose.py +++ b/python/openmldb_tool/diagnostic_tool/diagnose.py @@ -31,13 +31,15 @@ import diagnostic_tool.server_checker as checker from diagnostic_tool.table_checker import TableChecker from diagnostic_tool.parser import LogParser +from .inspect import server_ins, table_ins, partition_ins, ops_ins, ops_hint, inspect_hint +from .rpc import RPC from absl import app from absl import flags from absl.flags import argparse_flags from absl import logging # --verbosity --log_dir -# only some sub cmd needs dist file +# only some sub cmd needs dist file TODO(hw): better to move then to other py file, to avoid -h show them flags.DEFINE_string( "conf_file", "", @@ -81,7 +83,7 @@ def status(args): # --diff with dist conf file, conf_file is required if args.diff: - assert flags.FLAGS.conf_file, "need --conf_file" + assert flags.FLAGS.conf_file, "need -f,--conf_file" print( "only check components in conf file, if cluster has more components, ignore them" ) @@ -96,39 +98,56 @@ def status(args): def inspect(args): - insepct_online(args) - inspect_offline(args) + # report all + # 1. server level + connect = Connector() + status_checker = checker.StatusChecker(connect) + server_map = status_checker._get_components() + offlines = server_ins(server_map) + + # 3. ns ops level, but show only if has unhealthy tables, so hint later + last_one, should_warn, related_ops = ops_ins(connect) + + # 2. partition level: show unhealthy tables and get some hints about table + hints = partition_ins(server_map, related_ops) + if hints: + # show 3 here + ops_hint(last_one, should_warn) + # 4. hint + # let user know what to do + # 1) start offline servers + # 2) let user know the warning table is fatal or not, related ops, warn if offset is too large + # 3) if table not healthy and no related ops, use recoverdata + inspect_hint(offlines, hints) def insepct_online(args): - """show table status""" - conn = Connector() + """inspect online""" + connect = Connector() # scan all db include system db - fails = [] - rs = conn.execfetch("show table status like '%';") - rs.sort(key=lambda x: x[0]) - print(f"inspect {len(rs)} online tables(including system tables)") - for t in rs: + fails = table_ins(connect) + for t in fails: if t[13]: print(f"unhealthy table {t[2]}.{t[1]}:\n {t[:13]}") # sqlalchemy truncated ref https://github.com/sqlalchemy/sqlalchemy/commit/591e0cf08a798fb16e0ee9b56df5c3141aa48959 # so we print warnings alone print(f"full warnings:\n{t[13]}") - fails.append(f"{t[2]}.{t[1]}") - - assert not fails, f"unhealthy tables: {fails}" - print(f"all tables are healthy") + # if has fails, summary will print in table_ins + if not fails: + print(f"all tables are healthy") if getattr(args, "dist", False): - table_checker = TableChecker(conn) - table_checker.check_distribution(dbs=flags.FLAGS.db.split(",")) + table_checker = TableChecker(connect) + dbs = flags.FLAGS.db + db_list = dbs.split(",") if dbs else None + table_checker.check_distribution(dbs=db_list) def inspect_offline(args): """scan jobs status, show job log if failed""" final_failed = ["failed", "killed", "lost"] total, num, jobs = _get_jobs(final_failed) - # TODO some failed jobs are known, what if we want skip them? + # TODO some failed jobs are known or too old, what if we want skip them? print(f"inspect {total} offline jobs") if num: failed_jobs_str = "\n".join(jobs) @@ -241,7 +260,6 @@ def rpc(args): tm: taskmanager""" ) return - from diagnostic_tool.rpc import RPC # use status connction to get version conns_with_version = { @@ -301,7 +319,7 @@ def parse_arg(argv): status_parser.add_argument( "--diff", action="store_true", - help="check if all endpoints in conf are in cluster. If set, need to set `--conf_file`", + help="check if all endpoints in conf are in cluster. If set, need to set `-f,--conf_file`", ) # TODO action support in all python 3.x? status_parser.add_argument( "--conn", @@ -313,10 +331,10 @@ def parse_arg(argv): # sub inspect inspect_parser = subparsers.add_parser( "inspect", - help="Inspect online and offline. Use `inspect [online/offline]` to inspect one.", + help="Get full inspect report, --nocolor for batch mode, --table_width for partition tables display", ) - # inspect online & offline inspect_parser.set_defaults(command=inspect) + inspect_sub = inspect_parser.add_subparsers() # inspect online online = inspect_sub.add_parser("online", help="only inspect online table.") @@ -325,7 +343,9 @@ def parse_arg(argv): "--dist", action="store_true", help="Inspect online distribution." ) # inspect offline - offline = inspect_sub.add_parser("offline", help="only inspect offline jobs.") + offline = inspect_sub.add_parser( + "offline", help="only inspect offline jobs, show failed jobs." + ) offline.set_defaults(command=inspect_offline) # inspect job ins_job = inspect_sub.add_parser( diff --git a/python/openmldb_tool/diagnostic_tool/inspect.py b/python/openmldb_tool/diagnostic_tool/inspect.py new file mode 100644 index 00000000000..288f819bb78 --- /dev/null +++ b/python/openmldb_tool/diagnostic_tool/inspect.py @@ -0,0 +1,410 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- +# Copyright 2021 4Paradigm +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" gen multi-level readable reports for cluster devops """ +from absl import flags +import json +from collections import defaultdict +from prettytable import PrettyTable + +from .rpc import RPC + +# ANSI escape codes +flags.DEFINE_bool("nocolor", False, "disable color output", short_name="noc") +flags.DEFINE_integer( + "table_width", + 12, + "max columns in one row, 1 partition use r+1 cols, set k*(r+1)", + short_name="tw", +) +flags.DEFINE_integer( + "offset_diff_thresh", 100, "offset diff threshold", short_name="od" +) + +# color: red, green +RED = "\033[31m" +GREEN = "\033[32m" +BLUE = "\033[34m" +YELLOW = "\033[1;33m" +RESET = "\033[0m" + + +# switch by nocolor flag +def cr_print(color, obj): + if flags.FLAGS.nocolor or color == None: + print(obj) + else: + print(f"{color}{obj}{RESET}") + + +def server_ins(server_map): + print("\n\nServer Detail") + print(server_map) + offlines = [] + for component, value_list in server_map.items(): + for endpoint, status in value_list: + if status != "online": + offlines.append(f"[{component}]{endpoint}") + continue # offline tablet is needlessly to rpc + if offlines: + s = "\n".join(offlines) + cr_print(RED, f"offline servers:\n{s}") + else: + cr_print(GREEN, "all servers online (no backup tm and apiserver)") + return offlines + + +# support nocolor +def light(color, symbol, detail): + if flags.FLAGS.nocolor: + return f"{symbol} {detail}" + else: + return f"{color}{symbol}{RESET} {detail}" + + +def state2light(state): + state = state.ljust(15) # state str should be less than 15 + if not state.startswith("k"): + # meta mismatch status, all red + return light(RED, "X", state) + else: + # meta match, get the real state + state = state[1:] + if state.startswith("TableNormal"): + # green + return light(GREEN, "O", state) + else: + # ref https://github.com/4paradigm/OpenMLDB/blob/0462f8a9682f8d232e8d44df7513cff66870d686/tools/tool.py#L291 + # undefined is loading too: state == "kTableLoading" or state == "kTableUndefined" + # snapshot doesn't mean unhealthy: state == "kMakingSnapshot" or state == "kSnapshotPaused" + return light(YELLOW, "=", state) + + +# similar with `show table status` warnings field, but easier to read +# prettytable.colortable just make table border and header lines colorful, so we color the value +def check_table_info(t, replicas_on_tablet, tablet2idx): + pnum, rnum = t["partition_num"], t["replica_num"] + assert pnum == len(t["table_partition"]) + # multi-line for better display, max display columns in one row + valuable_cols = pnum * (rnum + 1) + display_width = min(flags.FLAGS.table_width, valuable_cols) + # if real multi-line, the last line may < width, padding with empty string + rest = valuable_cols % display_width + total_cols = valuable_cols + (0 if rest == 0 else display_width - rest) + + idx_row = [""] * total_cols + leader_row = [""] * total_cols + followers_row = [""] * total_cols + + table_mark = 0 + hint = "" + for i, p in enumerate(t["table_partition"]): + # each partition add 3 row, and rnum + 1 columns + # tablet idx pid | 1 | 4 | 5 + # leader 1 o + # followers o o + pid = p["pid"] + assert pid == i + + # sort by list tablets + replicas = [] + for r in p["partition_meta"]: + tablet = r["endpoint"] + # tablet_has_partition useless + # print(r["endpoint"], r["is_leader"], r["tablet_has_partition"]) + replicas_on_t = replicas_on_tablet[t["tid"]][p["pid"]] + # may can't find replica on tablet, e.g. tablet server is not ready + info_on_tablet = {} + if r["endpoint"] not in replicas_on_t: + info_on_tablet = {"state": "Miss", "mode": "Miss", "offset": -1} + else: + info_on_tablet = replicas_on_t[r["endpoint"]] + # print(info_on_tablet) + m = { + "role": "leader" if r["is_leader"] else "follower", + "state": info_on_tablet["state"], + "acrole": info_on_tablet["mode"], + "offset": info_on_tablet["offset"], + } + replicas.append((tablet2idx[tablet], m)) + + assert len(replicas) == rnum + replicas.sort(key=lambda x: x[0]) + leader_ind = [i for i, r in enumerate(replicas) if r[1]["role"] == "leader"] + # replica on offline tablet is still in the ns meta, so leader may > 1 + # assert len(ind) <= 1, f"should be only one leader or miss leader in {replicas}" + + # show partition idx and tablet server idx + cursor = i * (rnum + 1) + idx_row[cursor : cursor + rnum + 1] = ["p" + str(pid)] + [ + r[0] for r in replicas + ] + + # fulfill leader line + if leader_ind: + for leader in leader_ind: + # leader state + lrep = replicas[leader][1] + if lrep["state"] != "Miss" and lrep["acrole"] != "kTableLeader": + lrep["state"] = "NotLeaderOnT" # modify the state + leader_row[cursor + leader + 1] = state2light(lrep["state"]) + else: + # can't find leader in nameserver metadata, set in the first column(we can't find leader on any tablet) + leader_row[cursor] = state2light("NotFound") + + # fulfill follower line + for i, r in enumerate(replicas): + idx = cursor + i + 1 + if i in leader_ind: + continue + frep = r[1] + if frep["state"] != "Miss" and frep["acrole"] != "kTableFollower": + frep["state"] = "NotFollowerOnT" + followers_row[idx] = state2light(frep["state"]) + + # after state adjust, diag table + replicas = [r[1] for r in replicas] # tablet server is needless now + # fatal: leader replica is not normal, may read/write fail + # get one normal leader, the partition can work + if not leader_ind or not any( + [replicas[i]["state"] == "kTableNormal" for i in leader_ind] + ): + table_mark = max(4, table_mark) + hint += f"partition {pid} leader replica is not normal\n" + # warn: need repair(may auto repair by auto_failover), but not in emergency + # follower replica is not normal + if any([r["state"] != "kTableNormal" for r in replicas]): + table_mark = max(3, table_mark) + hint += f"partition {pid} has unhealthy replicas\n" + + # offset is not consistent, only check normal replicas + offsets = [r["offset"] for r in replicas if r["state"] == "kTableNormal"] + if offsets and max(offsets) - min(offsets) > flags.FLAGS.offset_diff_thresh: + table_mark = max(3, table_mark) + hint += ( + f"partition {pid} has offset diff > {flags.FLAGS.offset_diff_thresh}\n" + ) + + x = PrettyTable(align="l") + + x.field_names = [i for i in range(display_width)] + step = display_width + for i in range(0, len(idx_row), step): + x.add_row(idx_row[i : i + step]) + x.add_row(leader_row[i : i + step]) + x.add_row(followers_row[i : i + step], divider=True) + + table_summary = "" + if table_mark >= 4: + table_summary = light( + RED, + "X", + f"Fatal table {t['db']}.{t['name']}, read/write may fail, need repair immediately", + ) + elif table_mark >= 3: + table_summary = light( + YELLOW, "=", f"Warn table {t['db']}.{t['name']}, still work, but need repair" + ) + if table_summary: + table_summary += "\n" + hint + return x, table_summary + + +def show_table_info(t, replicas_on_tablet, tablet2idx): + """check table info and display for ut""" + print( + f"Table {t['tid']} {t['db']}.{t['name']} {t['partition_num']} partitions {t['replica_num']} replicas" + ) + table, _ = check_table_info(t, replicas_on_tablet, tablet2idx) + print(table.get_string(border=True, header=False)) + + +def table_ins(connect): + print("\n\nTable Healthy Detail") + rs = connect.execfetch("show table status like '%';") + rs.sort(key=lambda x: x[0]) + print(f"summary: {len(rs)} tables(including system tables)") + warn_tables = [] + for t in rs: + # any warning means unhealthy, partition_unalive may be 0 but already unhealthy, warnings is accurate? + if t[13]: + warn_tables.append(t) + if warn_tables: + # only show tables name + s = "\n".join([f"{t[2]}.{t[1]}" for t in warn_tables]) + cr_print(RED, f"unhealthy tables:\n{s}") + else: + cr_print(GREEN, "all tables are healthy") + return warn_tables + + +def partition_ins(server_map, related_ops): + print("\n\nTable Partition Detail") + # ns table info + rpc = RPC("ns") + res = rpc.rpc_exec("ShowTable", {"show_all": True}) + if not res: + cr_print(RED, "get table info failed or empty from nameserver") + return + res = json.loads(res) + all_table_info = res["table_info"] + + # get table info from tablet server + # >> + replicas = defaultdict(lambda: defaultdict(dict)) + tablets = server_map["tablet"] # has status + invalid_tablets = set() + for tablet, status in tablets: + if status == "offline": + invalid_tablets.add(tablet) + continue + # GetTableStatusRequest empty field means get all + rpc = RPC(tablet) + res = None + try: + res = json.loads(rpc.rpc_exec("GetTableStatus", {})) + except Exception as e: + print(f"rpc {tablet} failed") + # may get empty when tablet server is not ready + if not res or res["code"] != 0: + cr_print(RED, f"get table status failed or empty from {tablet}(online)") + invalid_tablets.add(tablet) + continue + if "all_table_status" not in res: + # just empty replica on tablet, skip + continue + for rep in res["all_table_status"]: + rep["tablet"] = tablet + # tid, pid are int + tid, pid = rep["tid"], rep["pid"] + replicas[tid][pid][tablet] = rep + + tablet2idx = {tablet[0]: i + 1 for i, tablet in enumerate(tablets)} + print(f"tablet server order: {tablet2idx}") + if invalid_tablets: + cr_print( + RED, + f"some tablet servers are offline/bad, can't get table info(exclude empty table server): {invalid_tablets}", + ) + + # display, depends on table info, replicas are used to check + all_table_info.sort(key=lambda x: x["tid"]) + # related op map + related_ops_map = {} + for op in related_ops: + db = op[9] + table = op[10] + if db not in related_ops_map: + related_ops_map[db] = {} + if table not in related_ops_map[db]: + related_ops_map[db][table] = [] + related_ops_map[db][table].append(op) + # print(f"related ops: {related_ops_map}") + print("") # for better display + diag_result = [] + for t in all_table_info: + # no need to print healthy table + table, diag_hint = check_table_info(t, replicas, tablet2idx) + if diag_hint: + print( + f"Table {t['tid']} {t['db']}.{t['name']} {t['partition_num']} partitions {t['replica_num']} replicas" + ) + print(table.get_string(header=False)) + if t["db"] in related_ops_map and t["name"] in related_ops_map[t["db"]]: + diag_hint += f"related op: {sorted(related_ops_map[t['db']][t['name']], key=lambda x: x[11])}" # 11 is pid + diag_result.append(diag_hint) + # comment for table info display, only for unhealthy table TODO: draw a example + if diag_result: + print( + """ +Example: +tablet server order: {'xxx': 1, 'xxx': 2, 'xxx': 3} -> get real tablet addr by idx ++----+-------------------+------------------+------------------+ +| p0 | 1 | 2 | 3 | -> p0: partition 0, 1-3: tablet server idx +| | [light] status | | | -> leader replica is on tablet 1 +| | | [light] status | [light] status | -> follower replicas are on tablet 2, 3 ++----+-------------------+------------------+------------------+ +light: +Green O -> OK +Yellow = -> replica meta is ok but state is not normal +Red X -> NotFound/Miss/NotFollowerOnT/NotLeaderOnT""" + ) + return diag_result + + +def ops_ins(connect): + # op sorted by id TODO: detail to show all include succ op? + rs = connect.execfetch("show jobs from NameServer;") + should_warn = [] + from datetime import datetime + # already in order + ops = [list(op) for op in rs] + for i in range(len(ops)): + op = ops[i] + op[3] = str(datetime.fromtimestamp(int(op[3]) / 1000)) if op[4] else "..." + op[4] = str(datetime.fromtimestamp(int(op[4]) / 1000)) if op[4] else "..." + if op[2] != "FINISHED": + should_warn.append(op) + + recover_type = ["kRecoverTableOP", "kChangeLeaderOP", "kReAddReplicaOP", "kOfflineReplicaOP"] + related_ops = [ + op + for op in should_warn + if op[1] in recover_type and op[2] in ["Submitted", "RUNNING"] + ] + return ops[-1] if ops else None, should_warn, related_ops + +def ops_hint(last_one, should_warn): + print("\n\nOps Detail") + print("> failed ops do not mean cluster is unhealthy, just for reference") + # peek last one to let user know if cluster has tried to recover, or we should wait + if last_one: + print("last one op(check time): ", last_one) + else: + print("no ops in nameserver") + if not should_warn: + print("all nameserver ops are finished") + else: + print("last 10 ops != finished:") + print(*should_warn[-10:], sep="\n") + +def inspect_hint(server_hint, table_hints): + print( + """ + +================== +Summary & Hint +================== +Server: +""" + ) + if server_hint: + cr_print(RED, f"offline servers {server_hint}, restart them first") + else: + cr_print(GREEN, "all servers online") + print("\nTable:\n") + for h in table_hints: + print(h) + if table_hints: + print( + """ + Make sure all servers online, and no ops for the table is running. + Repair table manually, run recoverdata, check https://openmldb.ai/docs/zh/main/maintain/openmldb_ops.html. + Check 'Table Partitions Detail' above for detail. + """ + ) + else: + cr_print(GREEN, "all tables are healthy") diff --git a/python/openmldb_tool/diagnostic_tool/pb.py b/python/openmldb_tool/diagnostic_tool/pb.py new file mode 100644 index 00000000000..06219d00b61 --- /dev/null +++ b/python/openmldb_tool/diagnostic_tool/pb.py @@ -0,0 +1,118 @@ +# Copyright 2021 4Paradigm +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from google.protobuf.descriptor import Descriptor, FieldDescriptor +from absl import flags + + +class DescriptorHelper: + def __init__(self, service): + # lazy import + assert flags.FLAGS.pbdir, "pbdir not set" + import sys + from pathlib import Path + + sys.path.append(Path(flags.FLAGS.pbdir).as_posix()) + import tablet_pb2 + import name_server_pb2 + import taskmanager_pb2 + + # google.protobuf.symbol_database can get service desc by name, but we have already included all pb2 files we need + # just use one file + pb_map = { + "TabletServer": tablet_pb2, + "NameServer": name_server_pb2, + "TaskManagerServer": taskmanager_pb2, + # "ApiServer": api_server_pb2, + # "DataSync": data_sync_pb2, + } + self.descriptor = pb_map[service].DESCRIPTOR.services_by_name[service] + # from google.protobuf import symbol_database + # self.sym_db = symbol_database.Default() + + def get_input_json(self, method): + m = self.descriptor.FindMethodByName(method) + if not m: + return False, f"method {method} not found" + if not m.input_type.fields: # e.g. ShowTabletRequest is emtpy + return False, f"method {method} has no input" + # GeneratedProtocolMessageType __dict__ is complex, can't use it directly + # cl = self.sym_db.GetSymbol(m.input_type.full_name) + + # fields build a map, message is Descriptor, fields in msg is FieldDescriptor + return True, Field.to_json(m.input_type) + + +class Field: + def to_str(typ): + typ2str = { + FieldDescriptor.TYPE_DOUBLE: "double", + FieldDescriptor.TYPE_FLOAT: "float", + FieldDescriptor.TYPE_INT64: "int64", + FieldDescriptor.TYPE_UINT64: "uint64", + FieldDescriptor.TYPE_INT32: "int32", + FieldDescriptor.TYPE_FIXED64: "fixed64", + FieldDescriptor.TYPE_FIXED32: "fixed32", + FieldDescriptor.TYPE_BOOL: "bool", + FieldDescriptor.TYPE_STRING: "string", + FieldDescriptor.TYPE_GROUP: "group", + FieldDescriptor.TYPE_MESSAGE: "message", + FieldDescriptor.TYPE_BYTES: "bytes", + FieldDescriptor.TYPE_UINT32: "uint32", + } + return typ2str[typ] + + def to_json(field): + # label optional, required, or repeated. + label = {1: "optional", 2: "required", 3: "repeated"} + + def is_map(f): + # I'm a map(containing_type = who includes me and my fields name are key-value) + # e.g. tm RunBatchSql --hint the conf field is map + return f.containing_type and [ff.name for ff in f.fields] == [ + "key", + "value", + ] + + if isinstance(field, FieldDescriptor): + if field.message_type: + # message_type is a Descriptor, check if it's a map + if is_map(field.message_type): + m = field.message_type + # treat key-value as map type, can't figure out custom type, no nested, so just generate here + return { + f"<{m.fields[0].name}>": f"<{m.fields[1].name}>", + "...": "...", + } + else: + # normal nested message + return Field.to_json(field.message_type) + elif field.type == FieldDescriptor.TYPE_ENUM: + return "/".join([n.name for n in field.enum_type.values]) + else: + return f"<{Field.to_str(field.type)}>" + + elif isinstance(field, Descriptor): + d = {} + for f in field.fields: + # each one is FieldDescriptor + # map is repeated too, but it's not a list + if f.label == 3 and not is_map(f.message_type): + # json list style + d[f"({label[f.label]})" + f.name] = [Field.to_json(f), "..."] + else: + d[f"({label[f.label]})" + f.name] = Field.to_json(f) + return d + else: + raise ValueError(f"unknown type {type(field)}") diff --git a/python/openmldb_tool/diagnostic_tool/rpc.py b/python/openmldb_tool/diagnostic_tool/rpc.py index 686734e7641..8e3f8efc660 100644 --- a/python/openmldb_tool/diagnostic_tool/rpc.py +++ b/python/openmldb_tool/diagnostic_tool/rpc.py @@ -12,103 +12,44 @@ # See the License for the specific language governing permissions and # limitations under the License. -from absl import flags import json import requests -from bs4 import BeautifulSoup -from google.protobuf.descriptor import FieldDescriptor from .server_checker import StatusChecker from .connector import Connector +from absl import flags + +# used by pb.py but set here for simplicity, we will check pbdir before call hint(import pb) flags.DEFINE_string( "pbdir", "/tmp/diag_cache", "pb2 root dir, if not set, will use the /pb2 directory in the same directory as this script", ) +def validate_ip_address(ip_string): + return not any(c.isalpha() for c in ip_string) -class DescriptorHelper: - def __init__(self, service): - # TODO(hw): symbol_database is useful? - # lazy import - assert flags.FLAGS.pbdir, "pbdir not set" - import sys - from pathlib import Path - sys.path.append(Path(flags.FLAGS.pbdir).as_posix()) - import tablet_pb2 - import name_server_pb2 - import taskmanager_pb2 - - pb_map = { - "TabletServer": tablet_pb2, - "NameServer": name_server_pb2, - "TaskManagerServer": taskmanager_pb2, - # "ApiServer": api_server_pb2, - # "DataSync": data_sync_pb2, - } - self.descriptor = pb_map[service].DESCRIPTOR.services_by_name[service] - - def get_input_json(self, method): - inp = self.descriptor.FindMethodByName(method).input_type - return Field.to_json(inp) - - -class Field: - def to_str(typ): - typ2str = { - FieldDescriptor.TYPE_DOUBLE: "double", - FieldDescriptor.TYPE_FLOAT: "float", - FieldDescriptor.TYPE_INT64: "int64", - FieldDescriptor.TYPE_UINT64: "uint64", - FieldDescriptor.TYPE_INT32: "int32", - FieldDescriptor.TYPE_FIXED64: "fixed64", - FieldDescriptor.TYPE_FIXED32: "fixed32", - FieldDescriptor.TYPE_BOOL: "bool", - FieldDescriptor.TYPE_STRING: "string", - FieldDescriptor.TYPE_GROUP: "group", - FieldDescriptor.TYPE_MESSAGE: "message", - FieldDescriptor.TYPE_BYTES: "bytes", - FieldDescriptor.TYPE_UINT32: "uint32", - } - return typ2str[typ] - - def to_json(field): - # label optional, required, or repeated. - label = {1: "optional", 2: "required", 3: "repeated"} - if isinstance(field, FieldDescriptor): - key = f"({label[field.label]})" + field.name - if field.type == FieldDescriptor.TYPE_MESSAGE: - value = Field.to_json(field.message_type) - elif field.type == FieldDescriptor.TYPE_ENUM: - value = "/".join([n.name for n in field.enum_type.values]) - else: - value = Field.to_str(field.type) - if field.label == 3: - # json list style - return {key: [value, "..."]} - else: - return {key: value} - else: - # field is a message - if field.containing_type and [f.name for f in field.fields] == [ - "key", - "value", - ]: - # treat key-value as map type, can't figure out custom type - # TODO(hw): it's ok to pass a json list to proto map? - return {"k": "v", "...": "..."} - d = {} - for f in field.fields: - d.update(Field.to_json(f)) - return d + +host2service = { + "nameserver": "NameServer", + "taskmanager": "openmldb.taskmanager.TaskManagerServer", + "tablet": "TabletServer", +} class RPC: """rpc service""" def __init__(self, host) -> None: - self.host, self.endpoint, self.service = RPC.get_endpoint_service(host.lower()) + if validate_ip_address(host): + self.endpoint = host + self.host = "tablet" # TODO: you can get ns/tm by name, it's not necessary to input ip + self.service = host2service[self.host] + else: + self.host, self.endpoint, self.service = RPC.get_endpoint_service( + host.lower() + ) def rpc_help(self): if self.host == "taskmanager": @@ -123,26 +64,31 @@ def rpc_exec(self, operation, field): ) return r.text - def hint(self, info): - if not info: + def hint(self, method): + if not method: # show service name and all rpc methods print(self.rpc_help()) return - # input message to json style - # if taskmanager, service in pb2 is TaskManagerServer service = ( self.service if not self.service.endswith("TaskManagerServer") else "TaskManagerServer" ) + from .pb import DescriptorHelper - helper = DescriptorHelper(service) - json_str = json.dumps(helper.get_input_json(info), indent=4) + ok, input_json = DescriptorHelper(service).get_input_json(method) + if not ok: + print(input_json) # if not ok, it's message + return + # input message to json style + json_str = json.dumps(input_json, indent=4) print( - f"You should input json like this, ignore round brackets in the key and double quotation marks in the value: --field '{json_str}'" + f"You should input json like this:\n --field '{json_str}'" ) + print("ignore round brackets in the key, e.g. (required)") + print('"<>" shows the data type, e.g. "" means you should set string') def search_in(self, typ, info): for item in typ: @@ -168,14 +114,12 @@ def get_endpoint_service(host): host = "nameserver" if host == "ns" else "taskmanager" assert host in components_map, f"{host} not found in cluster" endpoint = components_map[host][num][0] - host2service = { - "nameserver": "NameServer", - "taskmanager": "openmldb.taskmanager.TaskManagerServer", - "tablet": "TabletServer", - } + service = host2service[host] return host, endpoint, service def parse_html(html): + from bs4 import BeautifulSoup + soup = BeautifulSoup(html, "html.parser") return soup.get_text("\n") diff --git a/python/openmldb_tool/diagnostic_tool/table_checker.py b/python/openmldb_tool/diagnostic_tool/table_checker.py index 969e7d110e4..f9703054d5c 100644 --- a/python/openmldb_tool/diagnostic_tool/table_checker.py +++ b/python/openmldb_tool/diagnostic_tool/table_checker.py @@ -24,11 +24,11 @@ class TableChecker: def __init__(self, conn: Connector): self.conn = conn - def check_distribution(self, dbs: list): + def check_distribution(self, dbs: list = None): exist_dbs = [db[0] for db in self.conn.execfetch("SHOW DATABASES")] if not exist_dbs: return - if dbs == ['']: + if not dbs or len(dbs) == 0: dbs = exist_dbs assert all([db in exist_dbs for db in dbs]), "some databases are not exist" @@ -36,67 +36,87 @@ def check_distribution(self, dbs: list): url = f"http://{ns_leader}/NameServer/ShowTable" res = requests.get(url, json={"show_all": True}) tables = res.json()["table_info"] - + if not tables or len(tables) == 0: + print("no table") + return tablet2partition = {} tablet2count = {} tablet2mem = {} tablet2dused = {} table_infos = [] - max_values = {'mp': 0, 'mc': 0, 'mm': 0, 'md': 0} + max_values = {"mp": 0, "mc": 0, "mm": 0, "md": 0} for table in tables: - if table['db'] not in dbs: + if table["db"] not in dbs: continue t = {} - t['name'] = table['db'] + "." + table['name'] - parts = table['table_partition'] - part_dist = self._collect(parts, '') - count_dist = self._collect(parts, 'record_cnt') - mem_dist = self._collect(parts, 'record_byte_size') - dused_dist = self._collect(parts, 'diskused') - max_values['mp'] = max(max_values['mp'], *part_dist.values()) - max_values['mc'] = max(max_values['mc'], *count_dist.values()) - max_values['mm'] = max(max_values['mm'], *mem_dist.values()) - max_values['md'] = max(max_values['md'], *dused_dist.values()) - t['part_size'] = len(parts) - t['part_dist'] = part_dist - t['count_dist'] = count_dist - t['mem_dist'] = mem_dist - t['dused_dist'] = dused_dist + t["name"] = table["db"] + "." + table["name"] + parts = table["table_partition"] + part_dist = self._collect(parts, "") + count_dist = self._collect(parts, "record_cnt") + mem_dist = self._collect(parts, "record_byte_size") + dused_dist = self._collect(parts, "diskused") + t["part_size"] = len(parts) + t["part_dist"] = part_dist + t["count_dist"] = count_dist + t["mem_dist"] = mem_dist + t["dused_dist"] = dused_dist table_infos.append(t) self._add_merge(tablet2partition, part_dist) self._add_merge(tablet2count, count_dist) self._add_merge(tablet2mem, mem_dist) self._add_merge(tablet2dused, dused_dist) - max_values['mm'] = round(max_values['mm'] / 1024 / 1024, 4) - max_values['md'] = round(max_values['md'] / 1024 / 1024, 4) + def get_max(di): + return max(di.values()) + + max_values["mp"] = get_max(tablet2partition) + max_values["mc"] = get_max(tablet2count) + max_values["mm"] = round(get_max(tablet2mem) / 1024 / 1024, 4) + max_values["md"] = round(get_max(tablet2dused) / 1024 / 1024, 4) + max_width = 40 for t in table_infos: print() - print(t['name']) - print('partition size:', t['part_size']) - print('partition dist(include replica)') - self._show_dist(t['part_dist'], max_width=max_width * max(*t['part_dist'].values()) / max_values['mp']) - print('record count dist(include replica)') - self._show_dist(t['count_dist'], max_width=0 if max_values['mc'] == 0 else max_width * max(*t['count_dist'].values()) / max_values['mc']) - print('mem dist(include replica)(MB)') - self._byte2mb(t['mem_dist']) - self._show_dist(t['mem_dist'], max_width=0 if max_values['mm'] == 0 else max_width * max(*t['mem_dist'].values()) / max_values['mm']) - print('diskused dist(include replica)(MB)') - self._byte2mb(t['dused_dist']) - self._show_dist(t['dused_dist'], max_width=max_width * max(*t['dused_dist'].values()) / max_values['md']) + print(t["name"], "distribution") + print("partition size:", t["part_size"]) + print("partition dist(include replica)") + self._show_dist( + t["part_dist"], + max_width=max_width * get_max(t["part_dist"]) / max_values["mp"], + ) + print("record count dist(include replica)") + self._show_dist( + t["count_dist"], + max_width=0 + if max_values["mc"] == 0 + else max_width * get_max(t["count_dist"]) / max_values["mc"], + ) + print("mem dist(include replica)(MB)") + self._byte2mb(t["mem_dist"]) + self._show_dist( + t["mem_dist"], + max_width=0 + if max_values["mm"] == 0 + else max_width * get_max(t["mem_dist"]) / max_values["mm"], + ) + print("diskused dist(include replica)(MB)") + self._byte2mb(t["dused_dist"]) + self._show_dist( + t["dused_dist"], + max_width=max_width * get_max(t["dused_dist"]) / max_values["md"], + ) print() - print('total') - print('tablet2partition') + print("tablet server load distribution") + print("tablet2partition") self._show_dist(tablet2partition) - print('tablet2count') + print("tablet2count(row)") self._show_dist(tablet2count) - print('tablet2mem(MB)') + print("tablet2mem(MB)") self._byte2mb(tablet2mem) self._show_dist(tablet2mem) - print('tablet2diskused(MB)') + print("tablet2diskused(MB)") self._byte2mb(tablet2dused) self._show_dist(tablet2dused) @@ -106,16 +126,24 @@ def _byte2mb(self, dist: dict): def _show_dist(self, dist: dict, max_width=40): figc = tpl.figure() - figc.barh(list(dist.values()), labels=list(dist.keys()), max_width=max_width) + if not dist: # protect barh args + print("no data") + return + figc.barh( + list(dist.values()), + labels=list(dist.keys()), + max_width=max_width, + force_ascii=True, + ) figc.show() def _collect(self, parts, field): dist = {} for part in parts: - for replica in part['partition_meta']: - if replica['endpoint'] not in dist: - dist[replica['endpoint']] = 0 - dist[replica['endpoint']] += replica[field] if field else 1 + for replica in part["partition_meta"]: + if replica["endpoint"] not in dist: + dist[replica["endpoint"]] = 0 + dist[replica["endpoint"]] += replica[field] if field else 1 return dist def _add_merge(self, dist, dist2): diff --git a/python/openmldb_tool/setup.py b/python/openmldb_tool/setup.py index 7b9a8dcf27f..555e5b51153 100644 --- a/python/openmldb_tool/setup.py +++ b/python/openmldb_tool/setup.py @@ -28,7 +28,7 @@ "Programming Language :: Python :: 3", ], install_requires=[ - "openmldb >= 0.6.9", + "openmldb >= 0.8.1", "absl-py", "pyyaml", "paramiko", @@ -36,12 +36,12 @@ "requests", ], extras_require={ - "rpc": [ + "pb": [ "protobuf==3.6.1", "beautifulsoup4", ], "test": [ - "openmldb-tool[rpc]", + "openmldb-tool[pb]", "pytest", ], }, diff --git a/python/openmldb_tool/tests/inspect_test.py b/python/openmldb_tool/tests/inspect_test.py new file mode 100644 index 00000000000..6f5ece39c05 --- /dev/null +++ b/python/openmldb_tool/tests/inspect_test.py @@ -0,0 +1,355 @@ +import pytest +from diagnostic_tool.inspect import show_table_info +from absl import flags + +flags.FLAGS["nocolor"].parse(False) +flags.FLAGS["table_width"].parse(12) + + +def test_show(): + # assume 3 tablet server + tablets = ["0.0.0.0:1111", "0.0.0.0:2222", "0.0.0.0:3333"] + tablet2idx = {tablet: i + 1 for i, tablet in enumerate(tablets)} + # simple + t_info = { + "name": "TABLE_A", + "table_partition": [ + { + "pid": 0, + "partition_meta": [ + { + "endpoint": tablets[0], + "is_leader": True, + # "offset": 0, + # "record_cnt": 0, + # "record_byte_size": 0, + # "tablet_has_partition": true, + # "diskused": 9025, + }, + { + "endpoint": tablets[1], + "is_leader": False, + }, + ], + # "term_offset": [{"term": 1, "offset": 0}], + # "record_cnt": 0, + # "record_byte_size": 0, + # "diskused": 9025, + } + ], + "tid": 0, + "partition_num": 1, + "replica_num": 2, + "db": "DB_A", + } + + replicas = { + 0: { + 0: { + tablets[0]: { + "tid": 0, # actually not used in show_table_info + "pid": 0, # not used in show_table_info + "offset": 5, # check offset on tablet, not ns + "mode": "kTableLeader", + "state": "kTableNormal", + # "is_expire": True, + # "record_cnt": 1, + # "idx_cnt": 1, + # "ts_idx_status": [ + # {"idx_name": "id", "seg_cnts": [0, 0, 0, 0, 0, 0, 1, 0]} + # ], + "name": "Foo", + # "record_byte_size": 127, + # "record_idx_byte_size": 177, + # "record_pk_cnt": 1, + # "compress_type": "kNoCompress", + # "skiplist_height": 1, + # "diskused": 10074, + # "storage_mode": "kMemory", + "tablet": tablets[0], + }, + tablets[1]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[1], + }, + } + } + } + + show_table_info(t_info, replicas, tablet2idx) + + print("healthy ns meta, but replicas on tablet are all follower") + t_info = { + "name": "TABLE_A", + "table_partition": [ + { + "pid": 0, + "partition_meta": [ + { + "endpoint": tablets[0], + "is_leader": True, + }, + { + "endpoint": tablets[1], + "is_leader": False, + }, + { + "endpoint": tablets[2], + "is_leader": False, + }, + ], + } + ], + "tid": 0, + "partition_num": 1, + "replica_num": 3, + "db": "DB_A", + } + replicas = { + 0: { + 0: { + tablets[0]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[0], + }, + tablets[1]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[1], + }, + tablets[2]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[2], + }, + } + } + } + show_table_info(t_info, replicas, tablet2idx) + + print("ns meta all followers, no leader") + t_info = { + "name": "TABLE_A", + "table_partition": [ + { + "pid": 0, + "partition_meta": [ + { + "endpoint": tablets[0], + "is_leader": False, + }, + { + "endpoint": tablets[1], + "is_leader": False, + }, + { + "endpoint": tablets[2], + "is_leader": False, + }, + ], + } + ], + "tid": 0, + "partition_num": 1, + "replica_num": 3, + "db": "DB_A", + } + replicas = { + 0: { + 0: { + tablets[0]: { + "mode": "kTableLeader", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[0], + }, + tablets[1]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[1], + }, + tablets[2]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[2], + }, + } + } + } + show_table_info(t_info, replicas, tablet2idx) + + print("no corresponding replica on tablet server") + t_info = { + "name": "TABLE_A", + "table_partition": [ + { + "pid": 0, + "partition_meta": [ + { + "endpoint": tablets[0], + "is_leader": True, + }, + { + "endpoint": tablets[1], + "is_leader": False, + }, + { + "endpoint": tablets[2], + "is_leader": False, + }, + ], + } + ], + "tid": 0, + "partition_num": 1, + "replica_num": 3, + "db": "DB_A", + } + replicas = { + 0: { + 0: { + tablets[1]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[1], + }, + tablets[2]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[2], + }, + } + } + } + show_table_info(t_info, replicas, tablet2idx) + + print("meta match, but state is not normal") + t_info = { + "name": "TABLE_A", + "table_partition": [ + { + "pid": 0, + "partition_meta": [ + { + "endpoint": tablets[0], + "is_leader": True, + }, + { + "endpoint": tablets[1], + "is_leader": False, + }, + { + "endpoint": tablets[2], + "is_leader": False, + }, + ], + }, + { + "pid": 1, + "partition_meta": [ + { + "endpoint": tablets[0], + "is_leader": True, + }, + { + "endpoint": tablets[1], + "is_leader": False, + }, + { + "endpoint": tablets[2], + "is_leader": False, + }, + ], + }, + ], + "tid": 0, + "partition_num": 2, + "replica_num": 3, + "db": "DB_A", + } + replicas = { + 0: { + 0: { + tablets[0]: { + "mode": "kTableFollower", + "state": "kTableLoading", + "offset": 0, + "tablet": tablets[0], + }, + tablets[1]: { + "mode": "kTableFollower", + "state": "kMakingSnapshot", + "offset": 0, + "tablet": tablets[1], + }, + tablets[2]: { + "mode": "kTableFollower", + "state": "kSnapshotPaused", + "offset": 0, + "tablet": tablets[2], + }, + }, + 1: { + tablets[1]: { + "mode": "kTableFollower", + "state": "kTableUndefined", + "offset": 0, + }, + tablets[2]: { + "mode": "kTableFollower", + "state": "kTableNormal", + "offset": 0, + }, + }, + } + } + show_table_info(t_info, replicas, tablet2idx) + + print("more partitions, display well") + partnum = 13 + meta_pattern = { + "partition_meta": [ + { + "endpoint": tablets[0], + "is_leader": True, + }, + ], + } + t_info = { + "name": "TABLE_A", + "table_partition": [], + "tid": 0, + "partition_num": partnum, + "replica_num": 1, + "db": "DB_A", + } + replicas = {0: {}} + + for i in range(partnum): + t_info["table_partition"].append({"pid": i, **meta_pattern}) + + for i in range(partnum): + replicas[0][i] = { + tablets[0]: { + "mode": "kTableLeader", + "state": "kTableNormal", + "offset": 0, + "tablet": tablets[0], + } + } + print(t_info, replicas) + show_table_info(t_info, replicas, tablet2idx) + + print("nocolor") + flags.FLAGS["nocolor"].parse(True) + show_table_info(t_info, replicas, tablet2idx) diff --git a/src/proto/tablet.proto b/src/proto/tablet.proto index 2944794b0d9..0938c9d965c 100755 --- a/src/proto/tablet.proto +++ b/src/proto/tablet.proto @@ -829,7 +829,7 @@ message BulkLoadInfoResponse { required uint32 key = 1; // TODO(hw): java will use int, cpp uses uint32. Not good? required uint32 value = 2; } - repeated MapFieldEntry ts_idx_map = 2; // TODO(hw): proto3 supports map + repeated MapFieldEntry ts_idx_map = 2; // TODO(hw): proto3 can build map in proto2 syntax } repeated Segment segment = 1; } From 5dea9a373583e054ca66455a92b9eb56996b6c1a Mon Sep 17 00:00:00 2001 From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com> Date: Tue, 31 Oct 2023 17:08:59 +0800 Subject: [PATCH 085/111] build(deps-dev): bump urllib3 from 1.26.17 to 1.26.18 in /docs (#3558) --- docs/poetry.lock | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/poetry.lock b/docs/poetry.lock index fa522bb44da..724b4f19340 100644 --- a/docs/poetry.lock +++ b/docs/poetry.lock @@ -670,13 +670,13 @@ test = ["coverage", "pytest", "pytest-cov"] [[package]] name = "urllib3" -version = "1.26.17" +version = "1.26.18" description = "HTTP library with thread-safe connection pooling, file post, and more." optional = false python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*" files = [ - {file = "urllib3-1.26.17-py2.py3-none-any.whl", hash = "sha256:94a757d178c9be92ef5539b8840d48dc9cf1b2709c9d6b588232a055c524458b"}, - {file = "urllib3-1.26.17.tar.gz", hash = "sha256:24d6a242c28d29af46c3fae832c36db3bbebcc533dd1bb549172cd739c82df21"}, + {file = "urllib3-1.26.18-py2.py3-none-any.whl", hash = "sha256:34b97092d7e0a3a8cf7cd10e386f401b3737364026c45e622aa02903dffe0f07"}, + {file = "urllib3-1.26.18.tar.gz", hash = "sha256:f8ecc1bba5667413457c529ab955bf8c67b45db799d159066261719e328580a0"}, ] [package.extras] From d00449d92173eaff0c28bcd8d28c68ee1e155323 Mon Sep 17 00:00:00 2001 From: dl239 Date: Tue, 31 Oct 2023 18:48:16 +0800 Subject: [PATCH 086/111] fix: desc (#3567) --- src/cmd/display.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/cmd/display.h b/src/cmd/display.h index 6f01549bada..518d68463de 100644 --- a/src/cmd/display.h +++ b/src/cmd/display.h @@ -106,13 +106,14 @@ __attribute__((unused)) static void PrintColumnKey( t.add("ttl"); t.add("ttl_type"); t.end_of_row(); - + int index_pos = 1; for (int i = 0; i < column_key_field.size(); i++) { const auto& column_key = column_key_field.Get(i); if (column_key.flag() == 1) { continue; } - t.add(std::to_string(i + 1)); + t.add(std::to_string(index_pos)); + index_pos++; t.add(column_key.index_name()); std::string key; for (const auto& name : column_key.col_name()) { From 23d7c50f7881715753888832b05d6745d18024ff Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Thu, 9 Nov 2023 16:26:27 +0800 Subject: [PATCH 087/111] feat(sql): WINDOW without ORDER BY (#3554) Rules: - ALLOWED for ROWS-type WINDOW - NOT ALLOWED for RANGE-type WINDOW with offset PRECEDING/FOLLOWING - NOT ALLOWED for WINDOW with attribute EXCLUDE CURRENT_TIME Without ORDER BY, rows are processed in an unspecified order. --- cases/function/window/error_window.yaml | 32 +++- cases/query/window_query.yaml | 231 +++++++++++++++++++++++ hybridse/include/node/sql_node.h | 3 + hybridse/include/vm/physical_op.h | 12 +- hybridse/src/node/sql_node.cc | 5 + hybridse/src/plan/planner.cc | 1 - hybridse/src/testing/engine_test_base.cc | 20 +- hybridse/src/vm/runner.cc | 37 ++-- hybridse/src/vm/transform.cc | 28 ++- 9 files changed, 326 insertions(+), 43 deletions(-) diff --git a/cases/function/window/error_window.yaml b/cases/function/window/error_window.yaml index 9e9419bc74f..8b41d1ff0bf 100644 --- a/cases/function/window/error_window.yaml +++ b/cases/function/window/error_window.yaml @@ -17,15 +17,17 @@ debugs: [] version: 0.5.0 cases: - id: 0 - desc: no order by + desc: RANGE-type WINDOW with offset PRECEDING/FOLLOWING requires ORDER BY inputs: - columns: [ "id int","c1 string","c3 int","c4 bigint","c5 float","c6 double","c7 timestamp","c8 date" ] indexs: [ "index1:c8:c4" ] rows: - [1,"aa",20,30,1.1,2.1,1590738990000,"2020-05-01"] sql: | - SELECT id, c1, c4, count(c4) OVER w1 as w1_c4_count FROM {0} WINDOW w1 AS (PARTITION BY {0}.c8 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW); + SELECT id, c1, c4, count(c4) OVER w1 as w1_c4_count FROM {0} + WINDOW w1 AS (PARTITION BY {0}.c8 ROWS_RANGE BETWEEN 2 PRECEDING AND CURRENT ROW); expect: + msg: RANGE/ROWS_RANGE-type FRAME with offset PRECEDING/FOLLOWING requires exactly one ORDER BY column success: false - id: 1 desc: no partition by @@ -301,3 +303,29 @@ cases: SELECT id, c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM {0} WINDOW w1 AS (PARTITION BY {0}.c33 ORDER BY {0}.c7 ROWS_RANGE BETWEEN 2s PRECEDING AND CURRENT ROW); expect: success: false + - id: 17 + desc: ROWS WINDOW + EXCLUDE CURRENT_TIME requires order by + inputs: + - columns: [ "id int","c1 string","c3 int","c4 bigint","c5 float","c6 double","c7 timestamp","c8 date" ] + indexs: [ "index1:c8:c4" ] + rows: + - [1,"aa",20,30,1.1,2.1,1590738990000,"2020-05-01"] + sql: | + SELECT id, c1, c4, count(c4) OVER w1 as w1_c4_count FROM {0} + WINDOW w1 AS (PARTITION BY {0}.c8 ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW EXCLUDE CURRENT_TIME); + expect: + msg: WINDOW with EXCLUDE CURRENT_TIME requires exactly one ORDER BY column + success: false + - id: 18 + desc: RANGE WINDOW + EXCLUDE CURRENT_TIME requires order by + inputs: + - columns: [ "id int","c1 string","c3 int","c4 bigint","c5 float","c6 double","c7 timestamp","c8 date" ] + indexs: [ "index1:c8:c4" ] + rows: + - [1,"aa",20,30,1.1,2.1,1590738990000,"2020-05-01"] + sql: | + SELECT id, c1, c4, count(c4) OVER w1 as w1_c4_count FROM {0} + WINDOW w1 AS (PARTITION BY {0}.c8 ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW EXCLUDE CURRENT_TIME); + expect: + msg: WINDOW with EXCLUDE CURRENT_TIME requires exactly one ORDER BY column + success: false diff --git a/cases/query/window_query.yaml b/cases/query/window_query.yaml index 84365be97f7..3c64259d8c5 100644 --- a/cases/query/window_query.yaml +++ b/cases/query/window_query.yaml @@ -901,3 +901,234 @@ cases: 200, 1, 1 300, 0, 0 400, 2, 2 + + # ====================================================================== + # WINDOW without ORDER BY + # ====================================================================== + - id: 24 + desc: ROWS WINDOW WITHOUT ORDER BY + mode: batch-unsupport + inputs: + - name: t1 + columns: + - id int + - gp int + - ts timestamp + indexs: + - idx:gp:ts + data: | + 1, 100, 20000 + 2, 100, 10000 + 3, 400, 20000 + 4, 400, 10000 + 5, 400, 15000 + 6, 400, 40000 + sql: | + select id, count(ts) over w as agg + from t1 + window w as ( + partition by gp + rows between 2 open preceding and current row + ) + request_plan: | + PROJECT(type=Aggregation) + REQUEST_UNION(partition_keys=(), orders=, rows=(, 2 OPEN PRECEDING, 0 CURRENT), index_keys=(gp)) + DATA_PROVIDER(request=t1) + DATA_PROVIDER(type=Partition, table=t1, index=idx) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(id, agg)) + REQUEST_JOIN(type=kJoinTypeConcat) + SIMPLE_PROJECT(sources=(id)) + DATA_PROVIDER(request=t1) + PROJECT(type=Aggregation) + REQUEST_UNION(partition_keys=(), orders=, rows=(, 2 OPEN PRECEDING, 0 CURRENT), index_keys=(gp)) + DATA_PROVIDER(request=t1) + DATA_PROVIDER(type=Partition, table=t1, index=idx) + expect: + columns: ["id int", "agg int64"] + order: id + data: | + 1, 1 + 2, 2 + 3, 1 + 4, 2 + 5, 2 + 6, 2 + - id: 25 + desc: RANGE WINDOW WITHOUT ORDER BY + mode: batch-unsupport + inputs: + - name: t1 + columns: + - id int + - gp int + - ts timestamp + indexs: + - idx:gp:ts + data: | + 1, 100, 20000 + 2, 100, 10000 + 3, 400, 20000 + 4, 400, 10 + 5, 400, 15000 + sql: | + select id, count(ts) over w as agg + from t1 + window w as ( + partition by gp + rows_range between unbounded preceding and current row + ) + request_plan: | + PROJECT(type=Aggregation) + REQUEST_UNION(partition_keys=(), orders=, range=(, 0 PRECEDING UNBOUND, 0 CURRENT), index_keys=(gp)) + DATA_PROVIDER(request=t1) + DATA_PROVIDER(type=Partition, table=t1, index=idx) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(id, agg)) + REQUEST_JOIN(type=kJoinTypeConcat) + SIMPLE_PROJECT(sources=(id)) + DATA_PROVIDER(request=t1) + PROJECT(type=Aggregation) + REQUEST_UNION(partition_keys=(), orders=, range=(, 0 PRECEDING UNBOUND, 0 CURRENT), index_keys=(gp)) + DATA_PROVIDER(request=t1) + DATA_PROVIDER(type=Partition, table=t1, index=idx) + expect: + columns: ["id int", "agg int64"] + order: id + data: | + 1, 1 + 2, 2 + 3, 1 + 4, 2 + 5, 3 + - id: 26 + desc: RANGE-type WINDOW WITHOUT ORDER BY + WINDOW attributes + mode: batch-unsupport + inputs: + - name: t1 + columns: + - id int + - gp int + - ts timestamp + indexs: + - idx:gp:ts + data: | + 1, 100, 20000 + 2, 100, 10000 + 3, 400, 20000 + 4, 400, 10000 + 5, 400, 15000 + - name: t2 + columns: + - id int + - gp int + - ts timestamp + indexs: + - idx:gp:ts + data: | + 1, 100, 20000 + 2, 100, 10000 + 3, 400, 20000 + 4, 400, 10000 + 5, 400, 15000 + sql: | + select id, + count(ts) over w1 as agg1, + count(ts) over w2 as agg2, + count(ts) over w3 as agg3, + count(ts) over w4 as agg4, + count(ts) over w5 as agg5, + count(ts) over w6 as agg6, + count(ts) over w7 as agg7, + from t1 + window w1 as ( + PARTITION by gp + ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW), + w2 as (partition by gp + ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW EXCLUDE CURRENT_ROW), + w3 as (PARTITION BY gp + ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW MAXSIZE 1), + w4 as ( + UNION (select * from t2) + PARTITION BY gp + ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW INSTANCE_NOT_IN_WINDOW), + w5 as ( + UNION (select * from t2) + PARTITION BY gp + ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW INSTANCE_NOT_IN_WINDOW EXCLUDE CURRENT_ROW), + w6 as ( + UNION (select * from t2) + PARTITION BY gp + ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW MAXSIZE 2 INSTANCE_NOT_IN_WINDOW EXCLUDE CURRENT_ROW), + w7 as ( + UNION (select * from t2) + PARTITION BY gp + ROWS_RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW EXCLUDE CURRENT_ROW) + expect: + columns: ["id int", "agg1 int64", "agg2 int64", "agg3 int64", "agg4 int64", "agg5 int64", "agg6 int64", "agg7 int64"] + order: id + data: | + 1, 1, 0, 1, 3, 2, 2, 2 + 2, 2, 1, 1, 3, 2, 2, 3 + 3, 1, 0, 1, 4, 3, 2, 3 + 4, 2, 1, 1, 4, 3, 2, 4 + 5, 3, 2, 1, 4, 3, 2, 5 + - id: 27 + desc: ROWS-type WINDOW WITHOUT ORDER BY + WINDOW attributes + mode: batch-unsupport + inputs: + - name: t1 + columns: + - id int + - gp int + - ts timestamp + indexs: + - idx:gp:ts + data: | + 1, 100, 20000 + 2, 100, 10000 + 3, 400, 20000 + 4, 400, 10000 + 5, 400, 15000 + - name: t2 + columns: + - id int + - gp int + - ts timestamp + indexs: + - idx:gp:ts + data: | + 1, 100, 20000 + 2, 100, 10000 + 3, 400, 20000 + 4, 400, 10000 + 5, 400, 15000 + sql: | + select id, + count(ts) over w1 as agg1, + count(ts) over w2 as agg2, + count(ts) over w3 as agg3, + count(ts) over w4 as agg4, + from t1 + window w1 as ( + PARTITION by gp + ROWS BETWEEN 2 PRECEDING AND CURRENT ROW), + w2 as (partition by gp + ROWS BETWEEN 2 PRECEDING AND CURRENT ROW EXCLUDE CURRENT_ROW), + w3 as ( + UNION (select * from t2) + PARTITION BY gp + ROWS BETWEEN 2 PRECEDING AND CURRENT ROW INSTANCE_NOT_IN_WINDOW), + w4 as ( + UNION (select * from t2) + PARTITION BY gp + ROWS BETWEEN 3 PRECEDING AND CURRENT ROW INSTANCE_NOT_IN_WINDOW EXCLUDE CURRENT_ROW) + expect: + columns: ["id int", "agg1 int64", "agg2 int64", "agg3 int64", "agg4 int64"] + order: id + data: | + 1, 1, 0, 3, 2 + 2, 2, 1, 3, 2 + 3, 1, 0, 3, 3 + 4, 2, 1, 3, 3 + 5, 3, 2, 3, 3 diff --git a/hybridse/include/node/sql_node.h b/hybridse/include/node/sql_node.h index bbdfc83313f..dcf162a96ab 100644 --- a/hybridse/include/node/sql_node.h +++ b/hybridse/include/node/sql_node.h @@ -1166,6 +1166,9 @@ class FrameBound : public SqlNode { int64_t GetOffset() const { return offset_; } void SetOffset(int64_t v) { offset_ = v; } + // is offset [OPEN] PRECEDING/FOLLOWING + bool is_offset_bound() const; + /// \brief get the inclusive frame bound offset value that has signed symbol /// diff --git a/hybridse/include/vm/physical_op.h b/hybridse/include/vm/physical_op.h index ee3634615c8..d2fdafb5349 100644 --- a/hybridse/include/vm/physical_op.h +++ b/hybridse/include/vm/physical_op.h @@ -200,9 +200,9 @@ class Range : public FnComponent { const bool Valid() const { return nullptr != range_key_; } const std::string ToString() const { std::ostringstream oss; - if (nullptr != range_key_ && nullptr != frame_) { + if (nullptr != frame_) { if (nullptr != frame_->frame_range()) { - oss << "range=(" << range_key_->GetExprString() << ", " + oss << "range=(" << node::ExprString(range_key_) << ", " << frame_->frame_range()->start()->GetExprString() << ", " << frame_->frame_range()->end()->GetExprString(); @@ -216,7 +216,7 @@ class Range : public FnComponent { if (nullptr != frame_->frame_range()) { oss << ", "; } - oss << "rows=(" << range_key_->GetExprString() << ", " + oss << "rows=(" << node::ExprString(range_key_) << ", " << frame_->frame_rows()->start()->GetExprString() << ", " << frame_->frame_rows()->end()->GetExprString() << ")"; } @@ -578,7 +578,7 @@ class PhysicalRequestProviderNode : public PhysicalDataProviderNode { PhysicalOpNode **out) override; virtual ~PhysicalRequestProviderNode() {} - virtual void Print(std::ostream &output, const std::string &tab) const; + void Print(std::ostream &output, const std::string &tab) const override; }; class PhysicalRequestProviderNodeWithCommonColumn @@ -846,9 +846,7 @@ class WindowOp { std::ostringstream oss; oss << "partition_" << partition_.ToString(); oss << ", " << sort_.ToString(); - if (range_.Valid()) { - oss << ", " << range_.ToString(); - } + oss << ", " << range_.ToString(); return oss.str(); } const std::string FnDetail() const { diff --git a/hybridse/src/node/sql_node.cc b/hybridse/src/node/sql_node.cc index 16b88cd51ba..6fa2a82d42a 100644 --- a/hybridse/src/node/sql_node.cc +++ b/hybridse/src/node/sql_node.cc @@ -2100,6 +2100,11 @@ void FrameBound::Print(std::ostream &output, const std::string &org_tab) const { } } +bool FrameBound::is_offset_bound() const { + return bound_type_ == kPreceding || bound_type_ == kOpenPreceding || bound_type_ == kFollowing || + bound_type_ == kOpenFollowing; +} + int FrameBound::Compare(const FrameBound *bound1, const FrameBound *bound2) { if (SqlEquals(bound1, bound2)) { return 0; diff --git a/hybridse/src/plan/planner.cc b/hybridse/src/plan/planner.cc index c0a68e3104e..1584d76acbb 100644 --- a/hybridse/src/plan/planner.cc +++ b/hybridse/src/plan/planner.cc @@ -18,7 +18,6 @@ #include #include -#include #include #include #include diff --git a/hybridse/src/testing/engine_test_base.cc b/hybridse/src/testing/engine_test_base.cc index ca1af237936..2c3134d1257 100644 --- a/hybridse/src/testing/engine_test_base.cc +++ b/hybridse/src/testing/engine_test_base.cc @@ -240,8 +240,7 @@ void DoEngineCheckExpect(const SqlCase& sql_case, std::shared_ptr se if (!output_common_column_indices.empty() && output_common_column_indices.size() != static_cast(schema.size()) && sql_ctx.is_batch_request_optimized) { - LOG(INFO) << "Reorder batch request outputs for non-trival common " - "columns"; + DLOG(INFO) << "Reorder batch request outputs for non-trival columns"; auto& expect_common_column_indices = sql_case.expect().common_column_indices_; if (!expect_common_column_indices.empty()) { @@ -375,7 +374,7 @@ Status EngineTestRunner::Compile() { std::string placeholder = "{" + std::to_string(j) + "}"; boost::replace_all(sql_str, placeholder, sql_case_.inputs_[j].name_); } - LOG(INFO) << "Compile SQL:\n" << sql_str; + DLOG(INFO) << "Compile SQL:\n" << sql_str; CHECK_TRUE(session_ != nullptr, common::kTestEngineError, "Session is not set"); if (hybridse::sqlcase::SqlCase::IsDebug() || sql_case_.debug()) { session_->EnableDebug(); @@ -395,22 +394,23 @@ Status EngineTestRunner::Compile() { bool ok = engine_->Get(sql_str, sql_case_.db(), *session_, status); gettimeofday(&et, nullptr); double mill = (et.tv_sec - st.tv_sec) * 1000 + (et.tv_usec - st.tv_usec) / 1000.0; - LOG(INFO) << "SQL Compile take " << mill << " milliseconds"; + DLOG(INFO) << "SQL Compile take " << mill << " milliseconds"; if (!ok || !status.isOK()) { - LOG(INFO) << status; + DLOG(INFO) << status; + if (!sql_case_.expect().msg_.empty()) { + EXPECT_EQ(sql_case_.expect().msg_, status.msg); + } return_code_ = ENGINE_TEST_RET_COMPILE_ERROR; } else { - LOG(INFO) << "SQL output schema:"; + DLOG(INFO) << "SQL output schema:"; std::ostringstream oss; std::dynamic_pointer_cast(session_->GetCompileInfo())->GetPhysicalPlan()->Print(oss, ""); - LOG(INFO) << "Physical plan:"; - std::cerr << oss.str() << std::endl; + DLOG(INFO) << "Physical plan:\n" << oss.str(); std::ostringstream runner_oss; std::dynamic_pointer_cast(session_->GetCompileInfo())->GetClusterJob().Print(runner_oss, ""); - LOG(INFO) << "Runner plan:"; - std::cerr << runner_oss.str() << std::endl; + DLOG(INFO) << "Runner plan:\n" << runner_oss.str(); } return status; } diff --git a/hybridse/src/vm/runner.cc b/hybridse/src/vm/runner.cc index be954653b91..586f75c6187 100644 --- a/hybridse/src/vm/runner.cc +++ b/hybridse/src/vm/runner.cc @@ -2785,6 +2785,7 @@ std::shared_ptr RequestUnionRunner::Run( auto request = std::dynamic_pointer_cast(left)->GetValue(); + // ts_gen < 0 if there is no ORDER BY clause for WINDOW int64_t ts_gen = range_gen_.Valid() ? range_gen_.ts_gen_.Gen(request) : -1; // Prepare Union Window @@ -2798,31 +2799,35 @@ std::shared_ptr RequestUnionRunner::Run( std::shared_ptr RequestUnionRunner::RequestUnionWindow( const Row& request, std::vector> union_segments, int64_t ts_gen, const WindowRange& window_range, bool output_request_row, bool exclude_current_time) { - uint64_t start = 0; - // end is empty means end value < 0, that there is no effective window range + // range_start, range_end default to [0, MAX], so for the case without ORDER BY, + // RANGE-type WINDOW includes all rows in partition + uint64_t range_start = 0; + // range_end is empty means end value < 0, that there is no effective window range // this happend when `ts_gen` is 0 and exclude current_time needed - std::optional end = UINT64_MAX; - uint64_t rows_start_preceding = 0; - uint64_t max_size = 0; + std::optional range_end = UINT64_MAX; + uint64_t rows_start_preceding = window_range.start_row_; + uint64_t max_size = window_range.max_size_; if (ts_gen >= 0) { - start = (ts_gen + window_range.start_offset_) < 0 + range_start = (ts_gen + window_range.start_offset_) < 0 ? 0 : (ts_gen + window_range.start_offset_); if (exclude_current_time && 0 == window_range.end_offset_) { if (ts_gen == 0) { - end = {}; + range_end = {}; } else { - end = ts_gen - 1; + range_end = ts_gen - 1; } } else { - end = (ts_gen + window_range.end_offset_) < 0 + range_end = (ts_gen + window_range.end_offset_) < 0 ? 0 : (ts_gen + window_range.end_offset_); } - rows_start_preceding = window_range.start_row_; - max_size = window_range.max_size_; } - uint64_t request_key = ts_gen > 0 ? static_cast(ts_gen) : 0; + // INT64_MAX is the magic number as row key of input row, + // when WINDOW without ORDER BY + // + // DONT BELIEVE THE UNSIGNED TYPE, codegen still use int64_t as data type + uint64_t request_key = ts_gen >= 0 ? static_cast(ts_gen) : INT64_MAX; auto window_table = std::make_shared(); @@ -2841,7 +2846,7 @@ std::shared_ptr RequestUnionRunner::RequestUnionWindow( union_segment_status[i] = IteratorStatus(); continue; } - union_segment_iters[i]->Seek(end.value_or(0)); + union_segment_iters[i]->Seek(range_end.value_or(0)); if (!union_segment_iters[i]->Valid()) { union_segment_status[i] = IteratorStatus(); continue; @@ -2854,7 +2859,7 @@ std::shared_ptr RequestUnionRunner::RequestUnionWindow( uint64_t cnt = 0; auto range_status = window_range.GetWindowPositionStatus( cnt > rows_start_preceding, window_range.end_offset_ < 0, - request_key < start); + request_key < range_start); if (output_request_row) { window_table->AddRow(request_key, request); } @@ -2868,8 +2873,8 @@ std::shared_ptr RequestUnionRunner::RequestUnionWindow( } auto range_status = window_range.GetWindowPositionStatus( cnt > rows_start_preceding, - union_segment_status[max_union_pos].key_ > end, - union_segment_status[max_union_pos].key_ < start); + union_segment_status[max_union_pos].key_ > range_end, + union_segment_status[max_union_pos].key_ < range_start); if (WindowRange::kExceedWindow == range_status) { break; } diff --git a/hybridse/src/vm/transform.cc b/hybridse/src/vm/transform.cc index 8020c99741f..d52667dbc6f 100644 --- a/hybridse/src/vm/transform.cc +++ b/hybridse/src/vm/transform.cc @@ -25,8 +25,6 @@ #include "codegen/context.h" #include "codegen/fn_ir_builder.h" #include "codegen/fn_let_ir_builder.h" -#include "passes/expression/expr_pass.h" -#include "passes/lambdafy_projects.h" #include "passes/physical/batch_request_optimize.h" #include "passes/physical/cluster_optimized.h" #include "passes/physical/condition_optimized.h" @@ -2230,13 +2228,29 @@ Status BatchModeTransformer::CheckWindow( const node::WindowPlanNode* w_ptr, const vm::SchemasContext* schemas_ctx) { CHECK_TRUE(w_ptr != nullptr, common::kPlanError, "NULL Window"); CHECK_TRUE(!node::ExprListNullOrEmpty(w_ptr->GetKeys()), common::kPlanError, - "Invalid Window: Do not support window on non-partition"); - CHECK_TRUE(nullptr != w_ptr->GetOrders() && - !node::ExprListNullOrEmpty(w_ptr->GetOrders()->order_expressions_), - common::kPlanError, - "Invalid Window: Do not support window on non-order"); + "un-implemented: WINDOW without PARTITION BY clause"); CHECK_STATUS(CheckHistoryWindowFrame(w_ptr)); + // without ORDER BY clause: + if (w_ptr->GetOrders() == nullptr || node::ExprListNullOrEmpty(w_ptr->GetOrders()->order_expressions())) { + // 1. forbidden: RANGE/ROWS_RANGE WINDOW WITH offset PRECEDING/FOLLOWING + if (w_ptr->frame_node()->frame_type() != node::FrameType::kFrameRows) { + auto* range = w_ptr->frame_node()->frame_range(); + if ((range->start() && range->start()->is_offset_bound()) || + (range->end() && range->end()->is_offset_bound())) { + CHECK_TRUE( + false, common::kPlanError, + "RANGE/ROWS_RANGE-type FRAME with offset PRECEDING/FOLLOWING requires exactly one ORDER BY column") + } + } + + // 2. forbidden: WINDOW without ORDER BY + EXCLUDE CURRENT_TIME + if (w_ptr->exclude_current_time()) { + CHECK_TRUE(false, common::kPlanError, + "WINDOW with EXCLUDE CURRENT_TIME requires exactly one ORDER BY column"); + } + } + CHECK_STATUS(CheckTimeOrIntegerOrderColumn(w_ptr->GetOrders(), schemas_ctx)); return Status::OK(); From c3aafce0149c231f08ba2e370437a98f80c795d4 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Fri, 10 Nov 2023 15:20:16 +0800 Subject: [PATCH 088/111] docs: change udf and faq level, add sql guide (#3534) * docs: change udf and faq level, add sql guide * Update beginner_must_read.md --------- Co-authored-by: LU MIAN --- .github/workflows/udf-doc.yml | 4 +- .../built_in_function_develop_guide.md | 2 +- docs/en/developer/udf_develop_guide.md | 2 +- docs/en/reference/sql/dql/WINDOW_CLAUSE.md | 2 +- docs/en/reference/sql/index.rst | 1 + .../index.rst | 3 +- .../operators.md | 0 .../Files => }/udfs_8h.md | 884 +++++++++--------- docs/zh/deploy/index.rst | 1 - .../built_in_function_develop_guide.md | 5 +- docs/zh/faq/client_faq.md | 88 ++ docs/zh/faq/index.rst | 10 + docs/zh/faq/server_faq.md | 61 ++ docs/zh/index.rst | 1 + docs/zh/maintain/faq.md | 130 --- docs/zh/maintain/index.rst | 1 - docs/zh/maintain/openmldb_ops.md | 5 +- docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md | 38 +- .../functions_and_operators/index.rst | 1 - docs/zh/openmldb_sql/index.rst | 1 + docs/zh/openmldb_sql/sql_difference.md | 4 +- docs/zh/openmldb_sql/udf_develop_guide.md | 2 +- .../Files => }/udfs_8h.md | 884 +++++++++--------- docs/zh/quickstart/beginner_must_read.md | 84 +- docs/zh/tutorial/index.rst | 1 - .../tools/documentation/udf_doxygen/Makefile | 4 +- .../tools/documentation/udf_doxygen/README.md | 2 +- .../documentation/udf_doxygen/config.json | 2 +- 28 files changed, 1162 insertions(+), 1061 deletions(-) rename docs/en/reference/sql/{functions_and_operators => operators}/index.rst (65%) rename docs/en/reference/sql/{functions_and_operators => operators}/operators.md (100%) rename docs/en/reference/sql/{functions_and_operators/Files => }/udfs_8h.md (68%) create mode 100644 docs/zh/faq/client_faq.md create mode 100644 docs/zh/faq/index.rst create mode 100644 docs/zh/faq/server_faq.md delete mode 100644 docs/zh/maintain/faq.md rename docs/zh/openmldb_sql/{functions_and_operators/Files => }/udfs_8h.md (68%) diff --git a/.github/workflows/udf-doc.yml b/.github/workflows/udf-doc.yml index bb57bac2110..5a0e6b33807 100644 --- a/.github/workflows/udf-doc.yml +++ b/.github/workflows/udf-doc.yml @@ -54,8 +54,8 @@ jobs: if: github.event_name != 'pull_request' with: add-paths: | - docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md - docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md + docs/en/reference/sql/udfs_8h.md + docs/zh/openmldb_sql/udfs_8h.md labels: | udf branch: docs-udf-patch diff --git a/docs/en/developer/built_in_function_develop_guide.md b/docs/en/developer/built_in_function_develop_guide.md index 3e6eaa2852a..97d00076f87 100644 --- a/docs/en/developer/built_in_function_develop_guide.md +++ b/docs/en/developer/built_in_function_develop_guide.md @@ -792,7 +792,7 @@ select date(timestamp(1590115420000)) as dt; ## 5. Document Management -Documents for all built-in functions can be found in [Built-in Functions](http://4paradigm.github.io/OpenMLDB/zh/main/reference/sql/functions_and_operators/Files/udfs_8h.html). It is a markdown file automatically generated from source, so please do not edit it directly. +Documents for all built-in functions can be found in [Built-in Functions](http://4paradigm.github.io/OpenMLDB/zh/main/reference/sql/udfs_8h.html). It is a markdown file automatically generated from source, so please do not edit it directly. - If you are adding a document for a new function, please refer to [2.2.4 Documenting Function](#224-documenting-function). - If you are trying to revise a document of an existing function, you can find source code in the files of `hybridse/src/udf/default_udf_library.cc` or `hybridse/src/udf/default_defs/*_def.cc` . diff --git a/docs/en/developer/udf_develop_guide.md b/docs/en/developer/udf_develop_guide.md index 63530ae0f1c..4c5aff6d2e1 100644 --- a/docs/en/developer/udf_develop_guide.md +++ b/docs/en/developer/udf_develop_guide.md @@ -9,7 +9,7 @@ SQL functions can be categorised into scalar functions and aggregate functions. #### 2.1.1 Naming Specification of C++ Built-in Function - The naming of C++ built-in function should follow the [snake_case](https://en.wikipedia.org/wiki/Snake_case) style. - The name should clearly express the function's purpose. -- The name of a function should not be the same as the name of a built-in function or other custom functions. The list of all built-in functions can be seen [here](../reference/sql/functions_and_operators/Files/udfs_8h.md). +- The name of a function should not be the same as the name of a built-in function or other custom functions. The list of all built-in functions can be seen [here](../reference/sql/udfs_8h.md). #### 2.1.2 The types of the built-in C++ functions' parameters should be BOOL, NUMBER, TIMESTAMP, DATE, or STRING. diff --git a/docs/en/reference/sql/dql/WINDOW_CLAUSE.md b/docs/en/reference/sql/dql/WINDOW_CLAUSE.md index bbc71a4f222..f3add760280 100644 --- a/docs/en/reference/sql/dql/WINDOW_CLAUSE.md +++ b/docs/en/reference/sql/dql/WINDOW_CLAUSE.md @@ -320,5 +320,5 @@ WINDOW w1 AS (PARTITION BY col1 ORDER BY col5 ROWS_RANGE BETWEEN 10s PRECEDING A ``` ```{seealso} -Please refer to [Built-in Functions](../functions_and_operators/Files/udfs_8h.md) for aggregate functions that can be used in window computation. +Please refer to [Built-in Functions](../udfs_8h.md) for aggregate functions that can be used in window computation. ```` diff --git a/docs/en/reference/sql/index.rst b/docs/en/reference/sql/index.rst index ee57dbac297..58bcc3e5502 100644 --- a/docs/en/reference/sql/index.rst +++ b/docs/en/reference/sql/index.rst @@ -9,6 +9,7 @@ SQL language_structure/index data_types/index functions_and_operators/index + udfs_8h dql/index dml/index ddl/index diff --git a/docs/en/reference/sql/functions_and_operators/index.rst b/docs/en/reference/sql/operators/index.rst similarity index 65% rename from docs/en/reference/sql/functions_and_operators/index.rst rename to docs/en/reference/sql/operators/index.rst index b889a6e8a87..db068373e46 100644 --- a/docs/en/reference/sql/functions_and_operators/index.rst +++ b/docs/en/reference/sql/operators/index.rst @@ -1,5 +1,5 @@ ============================= -Expressions, Functions, and Operations +Expressions and Operations ============================= @@ -7,4 +7,3 @@ Expressions, Functions, and Operations :maxdepth: 1 operators - Files/udfs_8h diff --git a/docs/en/reference/sql/functions_and_operators/operators.md b/docs/en/reference/sql/operators/operators.md similarity index 100% rename from docs/en/reference/sql/functions_and_operators/operators.md rename to docs/en/reference/sql/operators/operators.md diff --git a/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md b/docs/en/reference/sql/udfs_8h.md similarity index 68% rename from docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md rename to docs/en/reference/sql/udfs_8h.md index d1696b6c764..9cfab05977f 100644 --- a/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md +++ b/docs/en/reference/sql/udfs_8h.md @@ -10,158 +10,158 @@ title: udfs/udfs.h | Name | Description | | -------------- | -------------- | -| **[abs](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-abs)**()|
    Return the absolute value of expr. | -| **[acos](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-acos)**()|
    Return the arc cosine of expr. | -| **[add](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-add)**()|
    Compute sum of two arguments. | -| **[add_months](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-add-months)**()|
    adds an integer months to a given date, returning the resulting date. | -| **[array_contains](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-array-contains)**()|
    array_contains(array, value) - Returns true if the array contains the value. | -| **[asin](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-asin)**()|
    Return the arc sine of expr. | -| **[at](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-at)**()| | -| **[atan](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-atan)**()|
    Return the arc tangent of expr If called with one parameter, this function returns the arc tangent of expr. If called with two parameters X and Y, this function returns the arc tangent of Y / X. | -| **[atan2](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-atan2)**()|
    Return the arc tangent of Y / X.. | -| **[avg](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-avg)**()|
    Compute average of values. | -| **[avg_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-avg-cate)**()|
    Compute average of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[avg_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V', separated by comma, and sorted by key in ascend order. | -| **[avg_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-avg-where)**()|
    Compute average of values match specified condition. | -| **[bigint](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-bigint)**()| | -| **[bool](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-bool)**()|
    Cast string expression to bool. | -| **[ceil](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ceil)**()|
    Return the smallest integer value not less than the expr. | -| **[ceiling](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ceiling)**()| | -| **[char](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-char)**()|
    Returns the ASCII character having the binary equivalent to expr. If n >= 256 the result is equivalent to char(n % 256). | -| **[char_length](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-char-length)**()|
    Returns the length of the string. It is measured in characters and multibyte character string is not supported. | -| **[character_length](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-character-length)**()| | -| **[concat](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-concat)**()|
    This function returns a string resulting from the joining of two or more string values in an end-to-end manner. (To add a separating value during joining, see concat_ws.) | -| **[concat_ws](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-concat-ws)**()|
    Returns a string resulting from the joining of two or more string value in an end-to-end manner. It separates those concatenated string values with the delimiter specified in the first function argument. | -| **[cos](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-cos)**()|
    Return the cosine of expr. | -| **[cot](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-cot)**()|
    Return the cotangent of expr. | -| **[count](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-count)**()|
    Compute number of values. | -| **[count_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-count-cate)**()|
    Compute count of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[count_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[count_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-count-where)**()|
    Compute number of values match specified condition. | -| **[date](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-date)**()|
    Cast timestamp or string expression to date (date >= 1900-01-01) | -| **[date_format](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-date-format)**()|
    Formats the date value according to the format string. | -| **[datediff](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-datediff)**()|
    days difference from date1 to date2 | -| **[day](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-day)**()| | -| **[dayofmonth](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-dayofmonth)**()|
    Return the day of the month for a timestamp or date. | -| **[dayofweek](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-dayofweek)**()|
    Return the day of week for a timestamp or date. | -| **[dayofyear](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-dayofyear)**()|
    Return the day of year for a timestamp or date. Returns 0 given an invalid date. | -| **[degrees](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-degrees)**()|
    Convert radians to degrees. | -| **[distinct_count](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-distinct-count)**()|
    Compute number of distinct values. | -| **[double](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-double)**()|
    Cast string expression to double. | -| **[drawdown](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-drawdown)**()|
    Compute drawdown of values. | -| **[earth_distance](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-earth-distance)**()|
    Returns the great circle distance between two points on the surface of the Earth. Km as return unit. add a minus (-) sign if heading west (W) or south (S). | -| **[entropy](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-entropy)**()|
    Calculate Shannon entropy of a column of values. Null values are skipped. | -| **[ew_avg](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ew-avg)**()|
    Compute exponentially-weighted average of values. It's equivalent to pandas ewm(alpha={alpha}, adjust=True, ignore_na=True, com=None, span=None, halflife=None, min_periods=0) | -| **[exp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-exp)**()|
    Return the value of e (the base of natural logarithms) raised to the power of expr. | -| **[farm_fingerprint](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-farm-fingerprint)**()| | -| **[first_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-first-value)**()|
    Returns the value of expr from the latest row (last row) of the window frame. | -| **[float](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-float)**()|
    Cast string expression to float. | -| **[floor](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-floor)**()|
    Return the largest integer value not less than the expr. | -| **[get_json_object](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-get-json-object)**()|
    Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901)| -| **[hash64](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hash64)**()|
    Returns a hash value of the arguments. It is not a cryptographic hash function and should not be used as such. | -| **[hex](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hex)**()|
    Convert integer to hexadecimal. | -| **[hour](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hour)**()|
    Return the hour for a timestamp. | -| **[identity](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-identity)**()|
    Return value. | -| **[if_null](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-if-null)**()|
    If input is not null, return input value; else return default value. | -| **[ifnull](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ifnull)**()| | -| **[ilike_match](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ilike-match)**()|
    pattern match same as ILIKE predicate | -| **[inc](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-inc)**()|
    Return expression + 1. | -| **[int](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-int)**()| | -| **[int16](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-int16)**()|
    Cast string expression to int16. | -| **[int32](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-int32)**()|
    Cast string expression to int32. | -| **[int64](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-int64)**()|
    Cast string expression to int64. | -| **[is_null](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-is-null)**()|
    Check if input value is null, return bool. | -| **[isnull](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-isnull)**()| | -| **[join](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-join)**()|
    For each string value from specified column of window, join by delimeter. Null values are skipped. | -| **[json_array_length](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-json-array-length)**()|
    Returns the number of elements in the outermost JSON array. | -| **[lag](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lag)**()|
    Returns value evaluated at the row that is offset rows before the current row within the partition. Offset is evaluated with respect to the current row. | -| **[last_day](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-last-day)**()|
    Return the last day of the month to which the date belongs to. | -| **[lcase](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lcase)**()|
    Convert all the characters to lowercase. Note that characters with values > 127 are simply returned. | -| **[like_match](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-like-match)**()|
    pattern match same as LIKE predicate | -| **[list_except_by_key](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-list-except-by-key)**()|
    Return list of elements in list1 but keys not in except_str. | -| **[list_except_by_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-list-except-by-value)**()|
    Return list of elements in list1 but values not in except_str. | -| **[ln](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ln)**()|
    Return the natural logarithm of expr. | -| **[log](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-log)**()|
    log(base, expr) If called with one parameter, this function returns the natural logarithm of expr. If called with two parameters, this function returns the logarithm of expr to the base. | -| **[log10](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-log10)**()|
    Return the base-10 logarithm of expr. | -| **[log2](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-log2)**()|
    Return the base-2 logarithm of expr. | -| **[lower](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lower)**()| | -| **[make_tuple](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-make-tuple)**()| | -| **[max](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-max)**()|
    Compute maximum of values. | -| **[max_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-max-cate)**()|
    Compute maximum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[max_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[max_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-max-where)**()|
    Compute maximum of values match specified condition. | -| **[maximum](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-maximum)**()|
    Compute maximum of two arguments. | -| **[median](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-median)**()|
    Compute the median of values. | -| **[min](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-min)**()|
    Compute minimum of values. | -| **[min_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-min-cate)**()|
    Compute minimum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[min_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[min_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-min-where)**()|
    Compute minimum of values match specified condition. | -| **[minimum](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-minimum)**()|
    Compute minimum of two arguments. | -| **[minute](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-minute)**()|
    Return the minute for a timestamp. | -| **[month](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-month)**()|
    Return the month part of a timestamp or date. | -| **[nth_value_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-nth-value-where)**()|
    Returns the value of expr from the idx th row matches the condition. | -| **[nvl](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-nvl)**()| | -| **[nvl2](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-nvl2)**()|
    nvl2(expr1, expr2, expr3) - Returns expr2 if expr1 is not null, or expr3 otherwise. | -| **[pmod](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-pmod)**()|
    Compute pmod of two arguments. If any param is NULL, output NULL. If divisor is 0, output NULL. | -| **[pow](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-pow)**()|
    Return the value of expr1 to the power of expr2. | -| **[power](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-power)**()| | -| **[radians](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-radians)**()|
    Returns the argument X, converted from degrees to radians. (Note that π radians equals 180 degrees.) | -| **[regexp_like](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-regexp-like)**()|
    pattern match same as RLIKE predicate (based on RE2) | -| **[replace](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-replace)**()|
    replace(str, search[, replace]) - Replaces all occurrences of `search` with `replace`| -| **[reverse](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-reverse)**()|
    Returns the reversed given string. | -| **[round](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-round)**()|
    Returns expr rounded to d decimal places using HALF_UP rounding mode. | -| **[second](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-second)**()|
    Return the second for a timestamp. | -| **[sin](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sin)**()|
    Return the sine of expr. | -| **[size](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-size)**()|
    Get the size of a List (e.g., result of split) | -| **[smallint](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-smallint)**()| | -| **[split](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-split)**()|
    Split string to list by delimeter. Null values are skipped. | -| **[split_array](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-split-array)**()|
    Split string to array of string by delimeter. | -| **[split_by_key](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-split-by-key)**()|
    Split string by delimeter and split each segment as kv pair, then add each key to output list. Null or illegal segments are skipped. | -| **[split_by_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-split-by-value)**()|
    Split string by delimeter and split each segment as kv pair, then add each value to output list. Null or illegal segments are skipped. | -| **[sqrt](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sqrt)**()|
    Return square root of expr. | -| **[std](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-std)**()| | -| **[stddev](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-stddev)**()|
    Compute sample standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) / (n-1) )`| -| **[stddev_pop](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-stddev-pop)**()|
    Compute population standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) / n )`| -| **[stddev_samp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-stddev-samp)**()| | -| **[strcmp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-strcmp)**()|
    Returns 0 if the strings are the same, -1 if the first argument is smaller than the second according to the current sort order, and 1 otherwise. | -| **[string](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-string)**()|
    Return string converted from timestamp expression. | -| **[substr](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-substr)**()| | -| **[substring](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-substring)**()|
    Return a substring `len` characters long from string str, starting at position `pos`. Alias function: `substr`| -| **[sum](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sum)**()|
    Compute sum of values. | -| **[sum_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sum-cate)**()|
    Compute sum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[sum_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[sum_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sum-where)**()|
    Compute sum of values match specified condition. | -| **[tan](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-tan)**()|
    Return the tangent of expr. | -| **[timestamp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-timestamp)**()|
    Cast int64, date or string expression to timestamp. | -| **[top](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top)**()|
    Compute top k of values and output string separated by comma. The outputs are sorted in desc order. | -| **[top1_ratio](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top1-ratio)**()|
    Compute the top1 occurring value's ratio. | -| **[top_n_key_avg_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_key_count_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_key_max_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_key_min_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_key_ratio_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-ratio-cate)**()|
    Ratios (cond match cnt / total cnt) for groups. | -| **[top_n_key_sum_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_avg_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_count_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_max_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_min_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_ratio_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-ratio-cate)**()|
    Ratios (cond match cnt / total cnt) for groups. | -| **[top_n_value_sum_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[topn_frequency](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-topn-frequency)**()|
    Return the topN keys sorted by their frequency. | -| **[truncate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-truncate)**()|
    Return the nearest integer that is not greater in magnitude than the expr. | -| **[ucase](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ucase)**()|
    Convert all the characters to uppercase. Note that characters values > 127 are simply returned. | -| **[unhex](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-unhex)**()|
    Convert hexadecimal to binary string. | -| **[unix_timestamp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-unix-timestamp)**()|
    Cast date or string expression to unix_timestamp. If empty string or NULL is provided, return current timestamp. | -| **[upper](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-upper)**()| | -| **[var_pop](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-var-pop)**()|
    Compute population variance of values, i.e., `sum((x_i - avg)^2) / n`| -| **[var_samp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-var-samp)**()|
    Compute population variance of values, i.e., `sum((x_i - avg)^2) / (n-1)`| -| **[variance](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-variance)**()| | -| **[week](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-week)**()| | -| **[weekofyear](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-weekofyear)**()|
    Return the week of year for a timestamp or date. | -| **[window_split](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-window-split)**()|
    For each string value from specified column of window, split by delimeter and add segment to output list. Null values are skipped. | -| **[window_split_by_key](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-window-split-by-key)**()|
    For each string value from specified column of window, split by delimeter and then split each segment as kv pair, then add each key to output list. Null and illegal segments are skipped. | -| **[window_split_by_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-window-split-by-value)**()|
    For each string value from specified column of window, split by delimeter and then split each segment as kv pair, then add each value to output list. Null and illegal segments are skipped. | -| **[year](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-year)**()|
    Return the year part of a timestamp or date. | +| **[abs](/openmldb_sql/Files/udfs_8h.md#function-abs)**()|
    Return the absolute value of expr. | +| **[acos](/openmldb_sql/Files/udfs_8h.md#function-acos)**()|
    Return the arc cosine of expr. | +| **[add](/openmldb_sql/Files/udfs_8h.md#function-add)**()|
    Compute sum of two arguments. | +| **[add_months](/openmldb_sql/Files/udfs_8h.md#function-add-months)**()|
    adds an integer months to a given date, returning the resulting date. | +| **[array_contains](/openmldb_sql/Files/udfs_8h.md#function-array-contains)**()|
    array_contains(array, value) - Returns true if the array contains the value. | +| **[asin](/openmldb_sql/Files/udfs_8h.md#function-asin)**()|
    Return the arc sine of expr. | +| **[at](/openmldb_sql/Files/udfs_8h.md#function-at)**()| | +| **[atan](/openmldb_sql/Files/udfs_8h.md#function-atan)**()|
    Return the arc tangent of expr If called with one parameter, this function returns the arc tangent of expr. If called with two parameters X and Y, this function returns the arc tangent of Y / X. | +| **[atan2](/openmldb_sql/Files/udfs_8h.md#function-atan2)**()|
    Return the arc tangent of Y / X.. | +| **[avg](/openmldb_sql/Files/udfs_8h.md#function-avg)**()|
    Compute average of values. | +| **[avg_cate](/openmldb_sql/Files/udfs_8h.md#function-avg-cate)**()|
    Compute average of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[avg_cate_where](/openmldb_sql/Files/udfs_8h.md#function-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V', separated by comma, and sorted by key in ascend order. | +| **[avg_where](/openmldb_sql/Files/udfs_8h.md#function-avg-where)**()|
    Compute average of values match specified condition. | +| **[bigint](/openmldb_sql/Files/udfs_8h.md#function-bigint)**()| | +| **[bool](/openmldb_sql/Files/udfs_8h.md#function-bool)**()|
    Cast string expression to bool. | +| **[ceil](/openmldb_sql/Files/udfs_8h.md#function-ceil)**()|
    Return the smallest integer value not less than the expr. | +| **[ceiling](/openmldb_sql/Files/udfs_8h.md#function-ceiling)**()| | +| **[char](/openmldb_sql/Files/udfs_8h.md#function-char)**()|
    Returns the ASCII character having the binary equivalent to expr. If n >= 256 the result is equivalent to char(n % 256). | +| **[char_length](/openmldb_sql/Files/udfs_8h.md#function-char-length)**()|
    Returns the length of the string. It is measured in characters and multibyte character string is not supported. | +| **[character_length](/openmldb_sql/Files/udfs_8h.md#function-character-length)**()| | +| **[concat](/openmldb_sql/Files/udfs_8h.md#function-concat)**()|
    This function returns a string resulting from the joining of two or more string values in an end-to-end manner. (To add a separating value during joining, see concat_ws.) | +| **[concat_ws](/openmldb_sql/Files/udfs_8h.md#function-concat-ws)**()|
    Returns a string resulting from the joining of two or more string value in an end-to-end manner. It separates those concatenated string values with the delimiter specified in the first function argument. | +| **[cos](/openmldb_sql/Files/udfs_8h.md#function-cos)**()|
    Return the cosine of expr. | +| **[cot](/openmldb_sql/Files/udfs_8h.md#function-cot)**()|
    Return the cotangent of expr. | +| **[count](/openmldb_sql/Files/udfs_8h.md#function-count)**()|
    Compute number of values. | +| **[count_cate](/openmldb_sql/Files/udfs_8h.md#function-count-cate)**()|
    Compute count of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[count_cate_where](/openmldb_sql/Files/udfs_8h.md#function-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[count_where](/openmldb_sql/Files/udfs_8h.md#function-count-where)**()|
    Compute number of values match specified condition. | +| **[date](/openmldb_sql/Files/udfs_8h.md#function-date)**()|
    Cast timestamp or string expression to date (date >= 1900-01-01) | +| **[date_format](/openmldb_sql/Files/udfs_8h.md#function-date-format)**()|
    Formats the date value according to the format string. | +| **[datediff](/openmldb_sql/Files/udfs_8h.md#function-datediff)**()|
    days difference from date1 to date2 | +| **[day](/openmldb_sql/Files/udfs_8h.md#function-day)**()| | +| **[dayofmonth](/openmldb_sql/Files/udfs_8h.md#function-dayofmonth)**()|
    Return the day of the month for a timestamp or date. | +| **[dayofweek](/openmldb_sql/Files/udfs_8h.md#function-dayofweek)**()|
    Return the day of week for a timestamp or date. | +| **[dayofyear](/openmldb_sql/Files/udfs_8h.md#function-dayofyear)**()|
    Return the day of year for a timestamp or date. Returns 0 given an invalid date. | +| **[degrees](/openmldb_sql/Files/udfs_8h.md#function-degrees)**()|
    Convert radians to degrees. | +| **[distinct_count](/openmldb_sql/Files/udfs_8h.md#function-distinct-count)**()|
    Compute number of distinct values. | +| **[double](/openmldb_sql/Files/udfs_8h.md#function-double)**()|
    Cast string expression to double. | +| **[drawdown](/openmldb_sql/Files/udfs_8h.md#function-drawdown)**()|
    Compute drawdown of values. | +| **[earth_distance](/openmldb_sql/Files/udfs_8h.md#function-earth-distance)**()|
    Returns the great circle distance between two points on the surface of the Earth. Km as return unit. add a minus (-) sign if heading west (W) or south (S). | +| **[entropy](/openmldb_sql/Files/udfs_8h.md#function-entropy)**()|
    Calculate Shannon entropy of a column of values. Null values are skipped. | +| **[ew_avg](/openmldb_sql/Files/udfs_8h.md#function-ew-avg)**()|
    Compute exponentially-weighted average of values. It's equivalent to pandas ewm(alpha={alpha}, adjust=True, ignore_na=True, com=None, span=None, halflife=None, min_periods=0) | +| **[exp](/openmldb_sql/Files/udfs_8h.md#function-exp)**()|
    Return the value of e (the base of natural logarithms) raised to the power of expr. | +| **[farm_fingerprint](/openmldb_sql/Files/udfs_8h.md#function-farm-fingerprint)**()| | +| **[first_value](/openmldb_sql/Files/udfs_8h.md#function-first-value)**()|
    Returns the value of expr from the latest row (last row) of the window frame. | +| **[float](/openmldb_sql/Files/udfs_8h.md#function-float)**()|
    Cast string expression to float. | +| **[floor](/openmldb_sql/Files/udfs_8h.md#function-floor)**()|
    Return the largest integer value not less than the expr. | +| **[get_json_object](/openmldb_sql/Files/udfs_8h.md#function-get-json-object)**()|
    Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901)| +| **[hash64](/openmldb_sql/Files/udfs_8h.md#function-hash64)**()|
    Returns a hash value of the arguments. It is not a cryptographic hash function and should not be used as such. | +| **[hex](/openmldb_sql/Files/udfs_8h.md#function-hex)**()|
    Convert integer to hexadecimal. | +| **[hour](/openmldb_sql/Files/udfs_8h.md#function-hour)**()|
    Return the hour for a timestamp. | +| **[identity](/openmldb_sql/Files/udfs_8h.md#function-identity)**()|
    Return value. | +| **[if_null](/openmldb_sql/Files/udfs_8h.md#function-if-null)**()|
    If input is not null, return input value; else return default value. | +| **[ifnull](/openmldb_sql/Files/udfs_8h.md#function-ifnull)**()| | +| **[ilike_match](/openmldb_sql/Files/udfs_8h.md#function-ilike-match)**()|
    pattern match same as ILIKE predicate | +| **[inc](/openmldb_sql/Files/udfs_8h.md#function-inc)**()|
    Return expression + 1. | +| **[int](/openmldb_sql/Files/udfs_8h.md#function-int)**()| | +| **[int16](/openmldb_sql/Files/udfs_8h.md#function-int16)**()|
    Cast string expression to int16. | +| **[int32](/openmldb_sql/Files/udfs_8h.md#function-int32)**()|
    Cast string expression to int32. | +| **[int64](/openmldb_sql/Files/udfs_8h.md#function-int64)**()|
    Cast string expression to int64. | +| **[is_null](/openmldb_sql/Files/udfs_8h.md#function-is-null)**()|
    Check if input value is null, return bool. | +| **[isnull](/openmldb_sql/Files/udfs_8h.md#function-isnull)**()| | +| **[join](/openmldb_sql/Files/udfs_8h.md#function-join)**()|
    For each string value from specified column of window, join by delimeter. Null values are skipped. | +| **[json_array_length](/openmldb_sql/Files/udfs_8h.md#function-json-array-length)**()|
    Returns the number of elements in the outermost JSON array. | +| **[lag](/openmldb_sql/Files/udfs_8h.md#function-lag)**()|
    Returns value evaluated at the row that is offset rows before the current row within the partition. Offset is evaluated with respect to the current row. | +| **[last_day](/openmldb_sql/Files/udfs_8h.md#function-last-day)**()|
    Return the last day of the month to which the date belongs to. | +| **[lcase](/openmldb_sql/Files/udfs_8h.md#function-lcase)**()|
    Convert all the characters to lowercase. Note that characters with values > 127 are simply returned. | +| **[like_match](/openmldb_sql/Files/udfs_8h.md#function-like-match)**()|
    pattern match same as LIKE predicate | +| **[list_except_by_key](/openmldb_sql/Files/udfs_8h.md#function-list-except-by-key)**()|
    Return list of elements in list1 but keys not in except_str. | +| **[list_except_by_value](/openmldb_sql/Files/udfs_8h.md#function-list-except-by-value)**()|
    Return list of elements in list1 but values not in except_str. | +| **[ln](/openmldb_sql/Files/udfs_8h.md#function-ln)**()|
    Return the natural logarithm of expr. | +| **[log](/openmldb_sql/Files/udfs_8h.md#function-log)**()|
    log(base, expr) If called with one parameter, this function returns the natural logarithm of expr. If called with two parameters, this function returns the logarithm of expr to the base. | +| **[log10](/openmldb_sql/Files/udfs_8h.md#function-log10)**()|
    Return the base-10 logarithm of expr. | +| **[log2](/openmldb_sql/Files/udfs_8h.md#function-log2)**()|
    Return the base-2 logarithm of expr. | +| **[lower](/openmldb_sql/Files/udfs_8h.md#function-lower)**()| | +| **[make_tuple](/openmldb_sql/Files/udfs_8h.md#function-make-tuple)**()| | +| **[max](/openmldb_sql/Files/udfs_8h.md#function-max)**()|
    Compute maximum of values. | +| **[max_cate](/openmldb_sql/Files/udfs_8h.md#function-max-cate)**()|
    Compute maximum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[max_cate_where](/openmldb_sql/Files/udfs_8h.md#function-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[max_where](/openmldb_sql/Files/udfs_8h.md#function-max-where)**()|
    Compute maximum of values match specified condition. | +| **[maximum](/openmldb_sql/Files/udfs_8h.md#function-maximum)**()|
    Compute maximum of two arguments. | +| **[median](/openmldb_sql/Files/udfs_8h.md#function-median)**()|
    Compute the median of values. | +| **[min](/openmldb_sql/Files/udfs_8h.md#function-min)**()|
    Compute minimum of values. | +| **[min_cate](/openmldb_sql/Files/udfs_8h.md#function-min-cate)**()|
    Compute minimum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[min_cate_where](/openmldb_sql/Files/udfs_8h.md#function-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[min_where](/openmldb_sql/Files/udfs_8h.md#function-min-where)**()|
    Compute minimum of values match specified condition. | +| **[minimum](/openmldb_sql/Files/udfs_8h.md#function-minimum)**()|
    Compute minimum of two arguments. | +| **[minute](/openmldb_sql/Files/udfs_8h.md#function-minute)**()|
    Return the minute for a timestamp. | +| **[month](/openmldb_sql/Files/udfs_8h.md#function-month)**()|
    Return the month part of a timestamp or date. | +| **[nth_value_where](/openmldb_sql/Files/udfs_8h.md#function-nth-value-where)**()|
    Returns the value of expr from the idx th row matches the condition. | +| **[nvl](/openmldb_sql/Files/udfs_8h.md#function-nvl)**()| | +| **[nvl2](/openmldb_sql/Files/udfs_8h.md#function-nvl2)**()|
    nvl2(expr1, expr2, expr3) - Returns expr2 if expr1 is not null, or expr3 otherwise. | +| **[pmod](/openmldb_sql/Files/udfs_8h.md#function-pmod)**()|
    Compute pmod of two arguments. If any param is NULL, output NULL. If divisor is 0, output NULL. | +| **[pow](/openmldb_sql/Files/udfs_8h.md#function-pow)**()|
    Return the value of expr1 to the power of expr2. | +| **[power](/openmldb_sql/Files/udfs_8h.md#function-power)**()| | +| **[radians](/openmldb_sql/Files/udfs_8h.md#function-radians)**()|
    Returns the argument X, converted from degrees to radians. (Note that π radians equals 180 degrees.) | +| **[regexp_like](/openmldb_sql/Files/udfs_8h.md#function-regexp-like)**()|
    pattern match same as RLIKE predicate (based on RE2) | +| **[replace](/openmldb_sql/Files/udfs_8h.md#function-replace)**()|
    replace(str, search[, replace]) - Replaces all occurrences of `search` with `replace`| +| **[reverse](/openmldb_sql/Files/udfs_8h.md#function-reverse)**()|
    Returns the reversed given string. | +| **[round](/openmldb_sql/Files/udfs_8h.md#function-round)**()|
    Returns expr rounded to d decimal places using HALF_UP rounding mode. | +| **[second](/openmldb_sql/Files/udfs_8h.md#function-second)**()|
    Return the second for a timestamp. | +| **[sin](/openmldb_sql/Files/udfs_8h.md#function-sin)**()|
    Return the sine of expr. | +| **[size](/openmldb_sql/Files/udfs_8h.md#function-size)**()|
    Get the size of a List (e.g., result of split) | +| **[smallint](/openmldb_sql/Files/udfs_8h.md#function-smallint)**()| | +| **[split](/openmldb_sql/Files/udfs_8h.md#function-split)**()|
    Split string to list by delimeter. Null values are skipped. | +| **[split_array](/openmldb_sql/Files/udfs_8h.md#function-split-array)**()|
    Split string to array of string by delimeter. | +| **[split_by_key](/openmldb_sql/Files/udfs_8h.md#function-split-by-key)**()|
    Split string by delimeter and split each segment as kv pair, then add each key to output list. Null or illegal segments are skipped. | +| **[split_by_value](/openmldb_sql/Files/udfs_8h.md#function-split-by-value)**()|
    Split string by delimeter and split each segment as kv pair, then add each value to output list. Null or illegal segments are skipped. | +| **[sqrt](/openmldb_sql/Files/udfs_8h.md#function-sqrt)**()|
    Return square root of expr. | +| **[std](/openmldb_sql/Files/udfs_8h.md#function-std)**()| | +| **[stddev](/openmldb_sql/Files/udfs_8h.md#function-stddev)**()|
    Compute sample standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) / (n-1) )`| +| **[stddev_pop](/openmldb_sql/Files/udfs_8h.md#function-stddev-pop)**()|
    Compute population standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) / n )`| +| **[stddev_samp](/openmldb_sql/Files/udfs_8h.md#function-stddev-samp)**()| | +| **[strcmp](/openmldb_sql/Files/udfs_8h.md#function-strcmp)**()|
    Returns 0 if the strings are the same, -1 if the first argument is smaller than the second according to the current sort order, and 1 otherwise. | +| **[string](/openmldb_sql/Files/udfs_8h.md#function-string)**()|
    Return string converted from timestamp expression. | +| **[substr](/openmldb_sql/Files/udfs_8h.md#function-substr)**()| | +| **[substring](/openmldb_sql/Files/udfs_8h.md#function-substring)**()|
    Return a substring `len` characters long from string str, starting at position `pos`. Alias function: `substr`| +| **[sum](/openmldb_sql/Files/udfs_8h.md#function-sum)**()|
    Compute sum of values. | +| **[sum_cate](/openmldb_sql/Files/udfs_8h.md#function-sum-cate)**()|
    Compute sum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[sum_cate_where](/openmldb_sql/Files/udfs_8h.md#function-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[sum_where](/openmldb_sql/Files/udfs_8h.md#function-sum-where)**()|
    Compute sum of values match specified condition. | +| **[tan](/openmldb_sql/Files/udfs_8h.md#function-tan)**()|
    Return the tangent of expr. | +| **[timestamp](/openmldb_sql/Files/udfs_8h.md#function-timestamp)**()|
    Cast int64, date or string expression to timestamp. | +| **[top](/openmldb_sql/Files/udfs_8h.md#function-top)**()|
    Compute top k of values and output string separated by comma. The outputs are sorted in desc order. | +| **[top1_ratio](/openmldb_sql/Files/udfs_8h.md#function-top1-ratio)**()|
    Compute the top1 occurring value's ratio. | +| **[top_n_key_avg_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_key_count_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_key_max_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_key_min_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_key_ratio_cate](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-ratio-cate)**()|
    Ratios (cond match cnt / total cnt) for groups. | +| **[top_n_key_sum_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_avg_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_count_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_max_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_min_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_ratio_cate](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-ratio-cate)**()|
    Ratios (cond match cnt / total cnt) for groups. | +| **[top_n_value_sum_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[topn_frequency](/openmldb_sql/Files/udfs_8h.md#function-topn-frequency)**()|
    Return the topN keys sorted by their frequency. | +| **[truncate](/openmldb_sql/Files/udfs_8h.md#function-truncate)**()|
    Return the nearest integer that is not greater in magnitude than the expr. | +| **[ucase](/openmldb_sql/Files/udfs_8h.md#function-ucase)**()|
    Convert all the characters to uppercase. Note that characters values > 127 are simply returned. | +| **[unhex](/openmldb_sql/Files/udfs_8h.md#function-unhex)**()|
    Convert hexadecimal to binary string. | +| **[unix_timestamp](/openmldb_sql/Files/udfs_8h.md#function-unix-timestamp)**()|
    Cast date or string expression to unix_timestamp. If empty string or NULL is provided, return current timestamp. | +| **[upper](/openmldb_sql/Files/udfs_8h.md#function-upper)**()| | +| **[var_pop](/openmldb_sql/Files/udfs_8h.md#function-var-pop)**()|
    Compute population variance of values, i.e., `sum((x_i - avg)^2) / n`| +| **[var_samp](/openmldb_sql/Files/udfs_8h.md#function-var-samp)**()|
    Compute population variance of values, i.e., `sum((x_i - avg)^2) / (n-1)`| +| **[variance](/openmldb_sql/Files/udfs_8h.md#function-variance)**()| | +| **[week](/openmldb_sql/Files/udfs_8h.md#function-week)**()| | +| **[weekofyear](/openmldb_sql/Files/udfs_8h.md#function-weekofyear)**()|
    Return the week of year for a timestamp or date. | +| **[window_split](/openmldb_sql/Files/udfs_8h.md#function-window-split)**()|
    For each string value from specified column of window, split by delimeter and add segment to output list. Null values are skipped. | +| **[window_split_by_key](/openmldb_sql/Files/udfs_8h.md#function-window-split-by-key)**()|
    For each string value from specified column of window, split by delimeter and then split each segment as kv pair, then add each key to output list. Null and illegal segments are skipped. | +| **[window_split_by_value](/openmldb_sql/Files/udfs_8h.md#function-window-split-by-value)**()|
    For each string value from specified column of window, split by delimeter and then split each segment as kv pair, then add each value to output list. Null and illegal segments are skipped. | +| **[year](/openmldb_sql/Files/udfs_8h.md#function-year)**()|
    Return the year part of a timestamp or date. | ## Functions Documentation @@ -501,13 +501,13 @@ Compute average of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -541,13 +541,13 @@ Compute average of values grouped by category key and output string. Each group Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -586,13 +586,13 @@ Compute average of values matching specified condition grouped by category key a Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | ```sql @@ -634,13 +634,13 @@ Compute average of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -884,7 +884,7 @@ SELECT COS(0); -* The value returned by [cos()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-cos) is always in the range: -1 to 1. +* The value returned by [cos()](/openmldb_sql/Files/udfs_8h.md#function-cos) is always in the range: -1 to 1. **Supported Types**: @@ -946,13 +946,13 @@ Compute number of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -987,13 +987,13 @@ Compute count of values grouped by category key and output string. Each group is Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -1032,13 +1032,13 @@ Compute count of values matching specified condition grouped by category key and Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | ```sql @@ -1080,13 +1080,13 @@ Compute number of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -1230,7 +1230,7 @@ Return the day of the month for a timestamp or date. 0.1.0 -Note: This function equals the `[day()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-day)` function. +Note: This function equals the `[day()](/openmldb_sql/Files/udfs_8h.md#function-day)` function. Example: @@ -1264,7 +1264,7 @@ Return the day of week for a timestamp or date. 0.4.0 -Note: This function equals the `[week()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-week)` function. +Note: This function equals the `[week()](/openmldb_sql/Files/udfs_8h.md#function-week)` function. Example: @@ -1374,13 +1374,13 @@ Compute number of distinct values. Example: -| value | +| value | | -------- | -| 0 | -| 0 | -| 2 | -| 2 | -| 4 | +| 0 | +| 0 | +| 2 | +| 2 | +| 4 | ```sql @@ -1450,14 +1450,14 @@ It requires that all values are non-negative. Negative values will be ignored. Example: -| value | +| value | | -------- | -| 1 | -| 8 | -| 5 | -| 2 | -| 10 | -| 4 | +| 1 | +| 8 | +| 5 | +| 2 | +| 10 | +| 4 | ```sql @@ -1568,13 +1568,13 @@ It requires that values are ordered so that it can only be used with WINDOW (PAR Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -1652,11 +1652,11 @@ window w as (partition by gp order by ts rows between 3 preceding and current ro ``` -| id | gp | ts | agg | +| id | gp | ts | agg | | -------- | -------- | -------- | -------- | -| 1 | 100 | 98 | 98 | -| 2 | 100 | 99 | 99 | -| 3 | 100 | 100 | 100 | +| 1 | 100 | 98 | 98 | +| 2 | 100 | 99 | 99 | +| 3 | 100 | 100 | 100 | @@ -2251,21 +2251,21 @@ Returns value evaluated at the row that is offset rows before the current row wi * **offset** The number of rows forwarded from the current row, must not negative -Note: This function equals the `[at()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-at)` function. +Note: This function equals the `[at()](/openmldb_sql/Files/udfs_8h.md#function-at)` function. -The offset in window is `nth_value()`, not `[lag()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lag)/at()`. The old `[at()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-at)`(version < 0.5.0) is start from the last row of window(may not be the current row), it's more like `nth_value()` +The offset in window is `nth_value()`, not `[lag()](/openmldb_sql/Files/udfs_8h.md#function-lag)/at()`. The old `[at()](/openmldb_sql/Files/udfs_8h.md#function-at)`(version < 0.5.0) is start from the last row of window(may not be the current row), it's more like `nth_value()` Example: -| c1 | c2 | +| c1 | c2 | | -------- | -------- | -| 0 | 1 | -| 1 | 1 | -| 2 | 2 | -| 3 | 2 | -| 4 | 2 | +| 0 | 1 | +| 1 | 1 | +| 2 | 2 | +| 3 | 2 | +| 4 | 2 | ```sql @@ -2653,13 +2653,13 @@ Compute maximum of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -2696,13 +2696,13 @@ Compute maximum of values grouped by category key and output string. Each group Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -2741,13 +2741,13 @@ Compute maximum of values matching specified condition grouped by category key a Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | ```sql @@ -2789,13 +2789,13 @@ Compute maximum of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -2861,12 +2861,12 @@ Compute the median of values. Example: -| value | +| value | | -------- | -| 1 | -| 2 | -| 3 | -| 4 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -2903,13 +2903,13 @@ Compute minimum of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -2946,13 +2946,13 @@ Compute minimum of values grouped by category key and output string. Each group Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -2991,14 +2991,14 @@ Compute minimum of values matching specified condition grouped by category key a Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 1 | true | y | -| 4 | true | x | -| 3 | true | y | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 1 | true | y | +| 4 | true | x | +| 3 | true | y | ```sql @@ -3040,13 +3040,13 @@ Compute minimum of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -3176,12 +3176,12 @@ select col1, cond, gp, nth_value_where(col1, 2, cond) over (partition by gp orde ``` -| col1 | cond | gp | agg | +| col1 | cond | gp | agg | | -------- | -------- | -------- | -------- | -| 1 | true | 100 | NULL | -| 2 | false | 100 | NULL | -| 3 | NULL | 100 | NULL | -| 4 | true | 100 | 4 | +| 1 | true | 100 | NULL | +| 2 | false | 100 | NULL | +| 3 | NULL | 100 | NULL | +| 4 | true | 100 | 4 | @@ -3568,7 +3568,7 @@ SELECT SIN(0); -* The value returned by [sin()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sin) is always in the range: -1 to 1. +* The value returned by [sin()](/openmldb_sql/Files/udfs_8h.md#function-sin) is always in the range: -1 to 1. **Supported Types**: @@ -3810,12 +3810,12 @@ Alias function: `std`, `stddev_samp` Example: -| value | +| value | | -------- | -| 1 | -| 2 | -| 3 | -| 4 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -3852,12 +3852,12 @@ Compute population standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) Example: -| value | +| value | | -------- | -| 1 | -| 2 | -| 3 | -| 4 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -4013,13 +4013,13 @@ Compute sum of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -4053,13 +4053,13 @@ Compute sum of values grouped by category key and output string. Each group is r Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -4098,13 +4098,13 @@ Compute sum of values matching specified condition grouped by category key and o Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | ```sql @@ -4146,13 +4146,13 @@ Compute sum of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -4262,13 +4262,13 @@ Compute top k of values and output string separated by comma. The outputs are so Example: -| value | +| value | | -------- | -| 1 | -| 2 | -| 3 | -| 4 | -| 4 | +| 1 | +| 2 | +| 3 | +| 4 | +| 4 | ```sql @@ -4319,11 +4319,11 @@ SELECT key, top1_ratio(key) over () as ratio FROM t1; ``` -| key | ratio | +| key | ratio | | -------- | -------- | -| 1 | 1.0 | -| 2 | 0.5 | -| NULL | 0.5 | +| 1 | 1.0 | +| 2 | 0.5 | +| NULL | 0.5 | @@ -4360,15 +4360,15 @@ Compute average of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | -| 5 | true | z | -| 6 | false | z | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | +| 5 | true | z | +| 6 | false | z | ```sql @@ -4420,15 +4420,15 @@ Compute count of values matching specified condition grouped by category key. Ou Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | false | x | -| 3 | true | y | -| 4 | false | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | false | x | +| 3 | true | y | +| 4 | false | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4480,15 +4480,15 @@ Compute maximum of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | -| 5 | true | z | -| 6 | false | z | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | +| 5 | true | z | +| 6 | false | z | ```sql @@ -4540,15 +4540,15 @@ Compute minimum of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | false | x | -| 3 | true | y | -| 4 | false | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | false | x | +| 3 | true | y | +| 4 | false | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4602,15 +4602,15 @@ For each group, ratio value is `value` expr count matches condtion divide total Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 2 | true | x | -| 4 | true | x | -| 1 | true | y | -| 3 | false | y | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 2 | true | x | +| 4 | true | x | +| 1 | true | y | +| 3 | false | y | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4661,15 +4661,15 @@ Compute sum of values matching specified condition grouped by category key. Outp Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | false | x | -| 3 | true | y | -| 4 | false | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | false | x | +| 3 | true | y | +| 4 | false | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4721,15 +4721,15 @@ Compute average of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | false | y | -| 4 | true | x | -| 5 | true | z | -| 6 | false | z | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | false | y | +| 4 | true | x | +| 5 | true | z | +| 6 | false | z | ```sql @@ -4781,15 +4781,15 @@ Compute count of values matching specified condition grouped by category key. Ou Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | true | x | -| 3 | false | y | -| 4 | true | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | true | x | +| 3 | false | y | +| 4 | true | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4841,15 +4841,15 @@ Compute maximum of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | -| 5 | true | z | -| 6 | false | z | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | +| 5 | true | z | +| 6 | false | z | ```sql @@ -4901,15 +4901,15 @@ Compute minimum of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | true | x | -| 3 | true | y | -| 4 | false | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | true | x | +| 3 | true | y | +| 4 | false | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4963,15 +4963,15 @@ For each group, ratio value is `value` expr count matches condtion divide total Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 2 | true | x | -| 4 | true | x | -| 1 | true | y | -| 3 | false | y | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 2 | true | x | +| 4 | true | x | +| 1 | true | y | +| 3 | false | y | +| 5 | true | z | +| 6 | true | z | ```sql @@ -5022,15 +5022,15 @@ Compute sum of values matching specified condition grouped by category key. Outp Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | false | x | -| 3 | false | y | -| 4 | true | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | false | x | +| 3 | false | y | +| 4 | true | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -5245,11 +5245,11 @@ Compute population variance of values, i.e., `sum((x_i - avg)^2) / n` Example: -| value | +| value | | -------- | -| 0 | -| 3 | -| 6 | +| 0 | +| 3 | +| 6 | ```sql @@ -5286,11 +5286,11 @@ Compute population variance of values, i.e., `sum((x_i - avg)^2) / (n-1)` Example: -| value | +| value | | -------- | -| 0 | -| 3 | -| 6 | +| 0 | +| 3 | +| 6 | ```sql diff --git a/docs/zh/deploy/index.rst b/docs/zh/deploy/index.rst index 29007be2d86..91a3116489e 100644 --- a/docs/zh/deploy/index.rst +++ b/docs/zh/deploy/index.rst @@ -8,6 +8,5 @@ install_deploy conf compile - integrate_hadoop offline_integrate_kubernetes [Alpha]在线引擎基于 Kubernetes 部署 diff --git a/docs/zh/developer/built_in_function_develop_guide.md b/docs/zh/developer/built_in_function_develop_guide.md index 12231384078..cbc186005cf 100644 --- a/docs/zh/developer/built_in_function_develop_guide.md +++ b/docs/zh/developer/built_in_function_develop_guide.md @@ -1034,10 +1034,9 @@ RegisterUdafTemplate("distinct_count") ## 6. 文档管理 -内置函数文档可在 [Built-in Functions](https://openmldb.ai/docs/zh/main/openmldb_sql/functions_and_operators/Files/udfs_8h.html) 查看,它是一个代码生成的 markdown 文件,注意请不要进行直接编辑。 +内置函数文档可在 [Built-in Functions](../openmldb_sql/udfs_8h.md) 查看,它是一个代码生成的 markdown 文件,注意请不要进行直接编辑。 -- 如果需要对新增加的函数添加文档,请参照 2.2.4 配置函数文档 章节,说明了内置函数的文档是在 CPP 源代码中管理的。后续会通过一系列步骤生成如上网页中更加可读的文档, 即`docs/*/openmldb_sql/functions_and_operators/`目录下的内容。 +- 如果需要对新增加的函数添加文档,请参照 2.2.4 配置函数文档 章节,说明了内置函数的文档是在 CPP 源代码中管理的。后续会通过一系列步骤生成如上网页中更加可读的文档, 即`docs/*/openmldb_sql/`目录下的内容。 - 如果需要修改一个已存在函数的文档,可以在文件 `hybridse/src/udf/default_udf_library.cc` 或者 `hybridse/src/udf/default_defs/*_def.cc` 下查找到对应函数的文档说明,进行修改。 OpenMLDB 项目中创建了一个定期天级别的 GitHub Workflow 任务来定期更新这里的相关文档。因此内置函数文档相关的改动只需按照上面的步骤修改对应源代码位置的内容即可,`docs` 目录和网站的内容会随之定期更新。具体的文档生成流程可以查看源代码路径下的 [udf_doxygen](https://github.com/4paradigm/OpenMLDB/tree/main/hybridse/tools/documentation/udf_doxygen)。 - diff --git a/docs/zh/faq/client_faq.md b/docs/zh/faq/client_faq.md new file mode 100644 index 00000000000..894cca02e57 --- /dev/null +++ b/docs/zh/faq/client_faq.md @@ -0,0 +1,88 @@ +# Client FAQ + +## fail to get tablet ... 的错误日志 + +优先检查集群中tablet server是否意外下线,或者在线表是否不可读写。推荐通过[openmldb_tool](../maintain/diagnose.md)诊断,使用`status`(status --diff)和`inspect online`两个检查命令。 +TODO diag tool 测到offline或online表不正常,会输出警告和下一步应该怎么操作? +如果只能手动检查,需要两步: +- `show components`,检查server是否存在在列表中(TaskManager如果下线,将不在表中。Tablet如果下线,将在表中,但状态为offline),以及在列表中的server的状态是否为online。如果存在offline的server,**先将server重启加入集群**。 +- `show table status like '%'`(低版本如果不支持like,需要分别查询系统db和用户db),检查每个表的"Warnings"是否报错。 + +一般会得到`real replica number X does not match the configured replicanum X`等错误,具体错误信息请参考[SHOW TABLE STATUS](../openmldb_sql/ddl/SHOW_TABLE_STATUS.md)。这些错误都说明表目前是有问题的,无法提供正常读写功能,通常是由于Tablet + +## 为什么收到 Reached timeout 的警告日志? +``` +rpc_client.h:xxx] request error. [E1008] Reached timeout=xxxms +``` +这是由于client端本身发送的rpc request的timeout设置小了,client端自己主动断开,注意这是rpc的超时。需要更改通用的`request_timeout`配置。 +1. CLI: 启动时配置`--request_timeout_ms` +2. JAVA/Python SDK: Option或url中调整`SdkOption.requestTimeout` +```{note} +同步的离线命令通常不会出现这个错误,因为同步离线命令的timeout设置为了TaskManager可接受的最长时间。 +``` + +## 为什么收到 Got EOF of Socket 的警告日志? +``` +rpc_client.h:xxx] request error. [E1014]Got EOF of Socket{id=x fd=x addr=xxx} (xx) +``` +这是因为`addr`端主动断开了连接,`addr`的地址大概率是TaskManager。这不代表TaskManager不正常,而是TaskManager端认为这个连接没有活动,超过keepAliveTime了,而主动断开通信channel。 +在0.5.0及以后的版本中,可以调大TaskManager的`server.channel_keep_alive_time`来提高对不活跃channel的容忍度。默认值为1800s(0.5h),特别是使用同步的离线命令时,这个值可能需要适当调大。 +在0.5.0以前的版本中,无法更改此配置,请升级TaskManager版本。 + +## 离线查询结果显示中文为什么乱码? + +在使用离线查询时,可能出现包含中文的查询结果乱码,主要和系统默认编码格式与Spark任务编码格式参数有关。 + +如果出现乱码情况,可以通过添加Spark高级参数`spark.driver.extraJavaOptions=-Dfile.encoding=utf-8`和`spark.executor.extraJavaOptions=-Dfile.encoding=utf-8`来解决。 + +客户端配置方法可参考[客户端Spark配置文件](../reference/client_config/client_spark_config.md),也可以在TaskManager配置文件中添加此项配置。 + +``` +spark.default.conf=spark.driver.extraJavaOptions=-Dfile.encoding=utf-8;spark.executor.extraJavaOptions=-Dfile.encoding=utf-8 +``` + +## 如何配置TaskManager来访问开启Kerberos的Yarn集群? + +如果Yarn集群开启Kerberos认证,TaskManager可以通过添加以下配置来访问开启Kerberos认证的Yarn集群。注意请根据实际配置修改keytab路径以及principal账号。 + +``` +spark.default.conf=spark.yarn.keytab=/tmp/test.keytab;spark.yarn.principal=test@EXAMPLE.COM +``` + +## 如何配置客户端的core日志? + +客户端core日志主要有两种,zk日志和sdk日志(glog日志),两者是独立的。 + +zk日志: +1. CLI:启动时配置`--zk_log_level`调整level,`--zk_log_file`配置日志保存文件。 +2. JAVA/Python SDK:Option或url中使用`zkLogLevel`调整level,`zkLogFile`配置日志保存文件。 + +- `zk_log_level`(int, 默认=0, 即DISABLE_LOGGING): +打印这个等级及**以下**等级的日志。0-禁止所有zk log, 1-error, 2-warn, 3-info, 4-debug。 + +sdk日志(glog日志): +1. CLI:启动时配置`--glog_level`调整level,`--glog_dir`配置日志保存文件。 +2. JAVA/Python SDK:Option或url中使用`glogLevel`调整level,`glogDir`配置日志保存文件。 + +- `glog_level`(int, 默认=1, 即WARNING): +打印这个等级及**以上**等级的日志。 INFO, WARNING, ERROR, and FATAL日志分别对应 0, 1, 2, and 3。 + + +## 插入错误,日志显示`please use getInsertRow with ... first` + +在JAVA client使用InsertPreparedStatement进行插入,或在Python中使用sql和parameter进行插入时,client底层实际有cache影响,第一步`getInsertRow`生成sql cache并返回sql还需要补充的parameter信息,第二步才会真正执行insert,而执行insert需要使用第一步缓存的sql cache。所以,当多线程使用同一个client时,可能因为插入和查询频繁更新cache表,将你想要执行的insert sql cache淘汰掉了,所以会出现好像第一步`getInsertRow`并未执行的样子。 + +目前可以通过调大`maxSqlCacheSize`这一配置项来避免错误。仅JAVA/Python SDK支持配置。 + +## 离线命令Spark报错 + +`java.lang.OutOfMemoryError: Java heap space` + +离线命令的Spark配置默认为`local[*]`,并发较高可能出现OutOfMemoryError错误,请调整`spark.driver.memory`和`spark.executor.memory`两个spark配置项。可以写在TaskManager运行目录的`conf/taskmanager.properties`的`spark.default.conf`并重启TaskManager,或者使用CLI客户端进行配置,参考[客户端Spark配置文件](../reference/client_config/client_spark_config.md)。 +``` +spark.default.conf=spark.driver.memory=16g;spark.executor.memory=16g +``` + +Container killed by YARN for exceeding memory limits. 5 GB of 5 GB physical memory used. Consider boosting spark.yarn.executor.memoryOverhead. + +local时drivermemory diff --git a/docs/zh/faq/index.rst b/docs/zh/faq/index.rst new file mode 100644 index 00000000000..a5d1e94a540 --- /dev/null +++ b/docs/zh/faq/index.rst @@ -0,0 +1,10 @@ +============================= +FAQ +============================= + + +.. toctree:: + :maxdepth: 1 + + client_faq + server_faq diff --git a/docs/zh/faq/server_faq.md b/docs/zh/faq/server_faq.md new file mode 100644 index 00000000000..1b89fd383d6 --- /dev/null +++ b/docs/zh/faq/server_faq.md @@ -0,0 +1,61 @@ +# Server FAQ + +Server中有任何上下线变化或问题,都先openmldb_tool status + inspect online检查下集群是否正常。 + +## 部署和启动 FAQ + +### 1. 如何确认集群已经正常运行? +虽然有一键启动脚本,但由于配置繁多,可能出现“端口已被占用”,“目录无读写权限”等问题。这些问题都是server进程运行之后才能发现,退出后没有及时反馈。(如果配置了监控,可以通过监控直接检查。) +所以,请先确认集群的所有server进程都正常运行。 + +可以通过`ps axu | grep openmldb`或sql命令`show components;`来查询。(注意,如果你使用了守护进程,openmldb server进程可能是在启动停止的循环中,并不代表持续运行,可以通过日志或`show components;`连接时间来确认。) + +如果进程都活着,集群还是表现不正常,需要查询一下server日志。可以优先看WARN和ERROR级日志,很大概率上,它们就是根本原因。 + +### 2. 如果数据没有自动恢复成功怎么办? + +通常情况,当我们重启服务,表中数据会自动进行恢复,但有些情况可能会造成恢复失败,通常失败的情况包括: + +- tablet异常退出 +- 多副本表多个副本所在的tablets同时重启或者重启太快,造成某些`auto_failover`操作还没完成tablet就重启 +- auto_failover设成`false` + +当服务启动成功后,可以通过`gettablestatus`获得所有表的状态: +``` +python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=gettablestatus +``` + +如果表中有`Warnings`,可以通过`recoverdata`来自动恢复数据: +``` +python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=recoverdata +``` + +## Server FAQ + +### 1. 为什么日志中有 Fail to write into Socket 的警告日志? +``` +http_rpc_protocol.cpp:911] Fail to write into Socket{id=xx fd=xx addr=xxx} (0x7a7ca00): Unknown error 1014 [1014] +``` +这是server端会打印的日志。一般是client端使用了连接池或短连接模式,在RPC超时后会关闭连接,server写回response时发现连接已经关了就报这个错。Got EOF就是指之前已经收到了EOF(对端正常关闭了连接)。client端使用单连接模式server端一般不会报这个。 + +### 2. 表数据的ttl初始设置不合适,如何调整? +这需要使用nsclient来修改,普通client无法做到。nsclient启动方式与命令,见[ns client](../maintain/cli.md#ns-client)。 + +在nsclient中使用命令`setttl`可以更改一个表的ttl,类似 +``` +setttl table_name ttl_type ttl [ttl] [index_name] +``` +可以看到,如果在命令末尾配置index的名字,可以做到只修改单个index的ttl。 +```{caution} +`setttl`的改变不会及时生效,会受到tablet server的配置`gc_interval`的影响。(每台tablet server的配置是独立的,互不影响。) + +举例说明,有一个tablet server的`gc_interval`是1h,那么ttl的配置重载,会在下一次gc的最后时刻进行(最坏情况下,会在1h后重载)。重载ttl的这一次gc就不会按最新ttl来淘汰数据。再下一次gc时才会使用最新ttl进行数据淘汰。 + +所以,**ttl更改后,需要等待两次gc interval的时间才会生效**。请耐心等待。 + +当然,你可以调整tablet server的`gc_interval`,但这个配置无法动态更改,只能重启生效。所以,如果内存压力较大,可以尝试扩容,迁移数据分片,来减少内存压力。不推荐轻易调整`gc_interval`。 +``` + +### 3. 出现警告日志:Last Join right table is empty,这是什么意思? +通常来讲,这是一个正常现象,不代表集群异常。只是runner中join右表为空,是可能的现象,大概率是数据问题。 + diff --git a/docs/zh/index.rst b/docs/zh/index.rst index 1a3fd0deb56..f3b3f63106b 100644 --- a/docs/zh/index.rst +++ b/docs/zh/index.rst @@ -16,3 +16,4 @@ OpenMLDB 文档 (|version|) maintain/index reference/index developer/index + faq/index diff --git a/docs/zh/maintain/faq.md b/docs/zh/maintain/faq.md deleted file mode 100644 index 454bfb500ad..00000000000 --- a/docs/zh/maintain/faq.md +++ /dev/null @@ -1,130 +0,0 @@ -# 运维 FAQ - -## 部署和启动 FAQ - -### 1. 如何确认集群已经正常运行? -虽然有一键启动脚本,但由于配置繁多,可能出现“端口已被占用”,“目录无读写权限”等问题。这些问题都是server进程运行之后才能发现,退出后没有及时反馈。(如果配置了监控,可以通过监控直接检查。) -所以,请先确认集群的所有server进程都正常运行。 - -可以通过`ps axu | grep openmldb`或sql命令`show components;`来查询。(注意,如果你使用了守护进程,openmldb server进程可能是在启动停止的循环中,并不代表持续运行,可以通过日志或`show components;`连接时间来确认。) - -如果进程都活着,集群还是表现不正常,需要查询一下server日志。可以优先看WARN和ERROR级日志,很大概率上,它们就是根本原因。 - -### 2. 如果数据没有自动恢复成功怎么办? - -通常情况,当我们重启服务,表中数据会自动进行恢复,但有些情况可能会造成恢复失败,通常失败的情况包括: - -- tablet异常退出 -- 多副本表多个副本所在的tablets同时重启或者重启太快,造成某些`auto_failover`操作还没完成tablet就重启 -- auto_failover设成`false` - -当服务启动成功后,可以通过`gettablestatus`获得所有表的状态: -``` -python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=gettablestatus -``` - -如果表中有`Warnings`,可以通过`recoverdata`来自动恢复数据: -``` -python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=recoverdata -``` - -## Server FAQ - -### 1. 为什么日志中有 Fail to write into Socket 的警告日志? -``` -http_rpc_protocol.cpp:911] Fail to write into Socket{id=xx fd=xx addr=xxx} (0x7a7ca00): Unknown error 1014 [1014] -``` -这是server端会打印的日志。一般是client端使用了连接池或短连接模式,在RPC超时后会关闭连接,server写回response时发现连接已经关了就报这个错。Got EOF就是指之前已经收到了EOF(对端正常关闭了连接)。client端使用单连接模式server端一般不会报这个。 - -### 2. 表数据的ttl初始设置不合适,如何调整? -这需要使用nsclient来修改,普通client无法做到。nsclient启动方式与命令,见[ns client](../maintain/cli.md#ns-client)。 - -在nsclient中使用命令`setttl`可以更改一个表的ttl,类似 -``` -setttl table_name ttl_type ttl [ttl] [index_name] -``` -可以看到,如果在命令末尾配置index的名字,可以做到只修改单个index的ttl。 -```{caution} -`setttl`的改变不会及时生效,会受到tablet server的配置`gc_interval`的影响。(每台tablet server的配置是独立的,互不影响。) - -举例说明,有一个tablet server的`gc_interval`是1h,那么ttl的配置重载,会在下一次gc的最后时刻进行(最坏情况下,会在1h后重载)。重载ttl的这一次gc就不会按最新ttl来淘汰数据。再下一次gc时才会使用最新ttl进行数据淘汰。 - -所以,**ttl更改后,需要等待两次gc interval的时间才会生效**。请耐心等待。 - -当然,你可以调整tablet server的`gc_interval`,但这个配置无法动态更改,只能重启生效。所以,如果内存压力较大,可以尝试扩容,迁移数据分片,来减少内存压力。不推荐轻易调整`gc_interval`。 -``` - -### 3. 出现警告日志:Last Join right table is empty,这是什么意思? -通常来讲,这是一个正常现象,不代表集群异常。只是runner中join右表为空,是可能的现象,大概率是数据问题。 - -## Client FAQ - -### 1. 为什么收到 Reached timeout 的警告日志? -``` -rpc_client.h:xxx] request error. [E1008] Reached timeout=xxxms -``` -这是由于client端本身发送的rpc request的timeout设置小了,client端自己主动断开,注意这是rpc的超时。需要更改通用的`request_timeout`配置。 -1. CLI: 启动时配置`--request_timeout_ms` -2. JAVA/Python SDK: Option或url中调整`SdkOption.requestTimeout` -```{note} -同步的离线命令通常不会出现这个错误,因为同步离线命令的timeout设置为了TaskManager可接受的最长时间。 -``` -### 2. 为什么收到 Got EOF of Socket 的警告日志? -``` -rpc_client.h:xxx] request error. [E1014]Got EOF of Socket{id=x fd=x addr=xxx} (xx) -``` -这是因为`addr`端主动断开了连接,`addr`的地址大概率是TaskManager。这不代表TaskManager不正常,而是TaskManager端认为这个连接没有活动,超过keepAliveTime了,而主动断开通信channel。 -在0.5.0及以后的版本中,可以调大TaskManager的`server.channel_keep_alive_time`来提高对不活跃channel的容忍度。默认值为1800s(0.5h),特别是使用同步的离线命令时,这个值可能需要适当调大。 -在0.5.0以前的版本中,无法更改此配置,请升级TaskManager版本。 - -### 3. 离线查询结果显示中文为什么乱码? - -在使用离线查询时,可能出现包含中文的查询结果乱码,主要和系统默认编码格式与Spark任务编码格式参数有关。 - -如果出现乱码情况,可以通过添加Spark高级参数`spark.driver.extraJavaOptions=-Dfile.encoding=utf-8`和`spark.executor.extraJavaOptions=-Dfile.encoding=utf-8`来解决。 - -客户端配置方法可参考[客户端Spark配置文件](../reference/client_config/client_spark_config.md),也可以在TaskManager配置文件中添加此项配置。 - -``` -spark.default.conf=spark.driver.extraJavaOptions=-Dfile.encoding=utf-8;spark.executor.extraJavaOptions=-Dfile.encoding=utf-8 -``` - -### 4. 如何配置TaskManager来访问开启Kerberos的Yarn集群? - -如果Yarn集群开启Kerberos认证,TaskManager可以通过添加以下配置来访问开启Kerberos认证的Yarn集群。注意请根据实际配置修改keytab路径以及principal账号。 - -``` -spark.default.conf=spark.yarn.keytab=/tmp/test.keytab;spark.yarn.principal=test@EXAMPLE.COM -``` - -### 5. 如何配置客户端的core日志? - -客户端core日志主要有两种,zk日志和sdk日志(glog日志),两者是独立的。 - -zk日志: -1. CLI:启动时配置`--zk_log_level`调整level,`--zk_log_file`配置日志保存文件。 -2. JAVA/Python SDK:Option或url中使用`zkLogLevel`调整level,`zkLogFile`配置日志保存文件。 - -- `zk_log_level`(int, 默认=0, 即DISABLE_LOGGING): -打印这个等级及**以下**等级的日志。0-禁止所有zk log, 1-error, 2-warn, 3-info, 4-debug。 - -sdk日志(glog日志): -1. CLI:启动时配置`--glog_level`调整level,`--glog_dir`配置日志保存文件。 -2. JAVA/Python SDK:Option或url中使用`glogLevel`调整level,`glogDir`配置日志保存文件。 - -- `glog_level`(int, 默认=1, 即WARNING): -打印这个等级及**以上**等级的日志。 INFO, WARNING, ERROR, and FATAL日志分别对应 0, 1, 2, and 3。 - - -### 6. 插入错误,日志显示`please use getInsertRow with ... first` - -在JAVA client使用InsertPreparedStatement进行插入,或在Python中使用sql和parameter进行插入时,client底层实际有cache影响,第一步`getInsertRow`生成sql cache并返回sql还需要补充的parameter信息,第二步才会真正执行insert,而执行insert需要使用第一步缓存的sql cache。所以,当多线程使用同一个client时,可能因为插入和查询频繁更新cache表,将你想要执行的insert sql cache淘汰掉了,所以会出现好像第一步`getInsertRow`并未执行的样子。 - -目前可以通过调大`maxSqlCacheSize`这一配置项来避免错误。仅JAVA/Python SDK支持配置。 - -### 7. 离线命令错误`java.lang.OutOfMemoryError: Java heap space` - -离线命令的Spark配置默认为`local[*]`,并发较高可能出现OutOfMemoryError错误,请调整`spark.driver.memory`和`spark.executor.memory`两个spark配置项。可以写在TaskManager运行目录的`conf/taskmanager.properties`的`spark.default.conf`并重启TaskManager,或者使用CLI客户端进行配置,参考[客户端Spark配置文件](../reference/client_config/client_spark_config.md)。 -``` -spark.default.conf=spark.driver.memory=16g;spark.executor.memory=16g -``` diff --git a/docs/zh/maintain/index.rst b/docs/zh/maintain/index.rst index a114cccef15..bdb0b551e87 100644 --- a/docs/zh/maintain/index.rst +++ b/docs/zh/maintain/index.rst @@ -16,4 +16,3 @@ multi_cluster diagnose openmldb_ops - faq diff --git a/docs/zh/maintain/openmldb_ops.md b/docs/zh/maintain/openmldb_ops.md index 10b53437b52..591ae355a75 100644 --- a/docs/zh/maintain/openmldb_ops.md +++ b/docs/zh/maintain/openmldb_ops.md @@ -31,9 +31,12 @@ **使用示例** ``` -python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=172.24.4.40:30481 --zk_root_path=/openmldb --cmd=scaleout +python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=0.0.0.0:2181 --zk_root_path=/openmldb --cmd=scaleout +python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=0.0.0.0:2181 --zk_root_path=/openmldb --cmd=recoverdata ``` +注:理论上openmldb_ops不要求版本匹配,高版本openmldb_ops可以操作低版本的openmldb集群。 + ### 系统要求 - 要求python2.7及以上版本 - `showopstatus`和`showtablestatus`需要`prettytable`依赖 diff --git a/docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md b/docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md index 18f49149429..6dacf10c268 100644 --- a/docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md +++ b/docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md @@ -86,27 +86,43 @@ SELECT select_expr [,select_expr...], window_function_name(expr) OVER window_nam 再看窗口想要什么大小,这里要分窗口类型说明: 1. 时间窗口:时间窗口通常使用s, m, h, d等时间单位,如果没有单位,默认为ms。比如: - [3小时前,当前行] - 3h preceding and current row - [3小时前,30分钟前] - 3h preceding and 30m preceding + - [3小时前,当前行] - 3h preceding and current row + - [3小时前,30分钟前] - 3h preceding and 30m preceding 1. 条数窗口:条数不需要单位。比如: - [10条,当前行] - 10 preceding and current row - [10条,3条] - 10 preceding and 3 preceding + - [10条,当前行] - 10 preceding and current row + - [10条,3条] - 10 preceding and 3 preceding ### 如何推断窗口是什么样的? 首先,先明确是什么执行模式: -离线模式,即批模式,它是对from表的每一行都做一次窗口划分与计算。因此,每一行对应产生一行SQL结果。 -请求模式,会带一条请求行,它会将请求行当做from表的数据,只对该行做窗口划分和计算,因此,只产生一行SQL结果。 +离线模式或在线预览模式,合称为批模式,它是对from表的每一行都做一次窗口划分与计算。因此,每一行对应产生一行SQL结果。 +请求模式,会带一条请求行,它会将请求行当做from表的数据,只对该行做窗口划分和计算,因此,只产生一行SQL结果。注意,不会将请求行插入到表中。 -再看,如何划分窗口: +我们将批模式看作多次请求模式来看待,所以请求模式查询如何划分窗口,我们分为三段来讲: -我们将批模式看作多次请求模式来看待。所以,对一次请求行来说,窗口只可能包含,它自己,与它的partition by列值相等的行(可能的全集)。 +- 对一次请求行来说,窗口**只可能**包含,它自己,与它的partition by列值相等的行 -partition key相等的所有行,还不是窗口,经由order by列排序后,还需要排除窗口范围以外的数据。比如,10 preceding and current row的条数窗口,就要抛弃10行以外的数据行(第10行包含在窗口内),又因为包括current row,于是窗口一共有11行数据。 +- partition key相等的所有行,它们不是乱序,而是按**order by列**排序 -* preceding为闭区间,包含该条,开区间使用open preceding +- 根据rows/rows_range排除窗口范围以外的数据 + - rows:例如,10 preceding and current row的条数窗口,就要抛弃10行以外的数据行(第10行包含在窗口内),又因为包括current row,于是窗口一共有11行数据。 + -rows_range:例如,10s preceding and current row的时间窗口,就要抛弃10s以外的数据行(第10s包含在窗口内),也包括current row,于是窗口只会出现order key值在`[current_row_order_key - 10s, current_row_order_key]`范围内的数据行。 + +```{note} +窗口划分范围,仅与order by列相关。如果认为窗口内行数或具体某数据不符合预期范围,一般是窗口写法的误解,极小概率是SQL引擎计算有误。请以某一个partition key为例,分步检查表的数据(以下操作都是在线模式): +- 提取与该key相等的所有数据。可以使用`select * from table where partition_key = xxx`来提取,或使用源数据文件,通过pandas/spark等工具提取。 +- 再按order by列排序,这类似于window设置窗口为unbounded preceding and current row。此处,可以将手动处理的数据和OpenMLDB的unbounded window计算结果进行对比。 + - 由于OpenMLDB只支持在窗口内聚合,很难看到窗口的数据全貌,而且窗口内数据较多时,查看全部也是很难的。通常是使用count/min/max/lag等聚合函数来衡量窗口内数据的数量和范围。 + - 如果仍需要通过窗口内具体数据来确认,可以使用top来展示前k大的值,但它会对列进行再排序,不能等同于窗口排序(order by列排序)。其他聚合函数,参考[udf函数](../udfs_8h.md)。 +- 最后,再检查窗口的rows/rows_range设置是否符合预期。 + - 通常情况,如果前两步没问题,条数划分一般不会有问题。 + - 时间划分,需要注意时间单位。OpenMLDB中order by列无论是timestamp还是bigint,都当作整数来计算的,timestamp是转换为ms为单位的整数。我们支持在窗口设置中使用时间单位,但不会对表中的order by列值做任何单位假设。例如,如果order by列 +并非timestamp,而是设置整数`20230905`,在时间窗口设置5ms时,窗口的范围是`[20230905 - 5, 20230905]`,而不是`[20230905 00:00:00 - 5ms, 20230905]`。**请谨慎对待order by列,最方便的做法是,任何时间格式都将其转换为timestamp或ms为单位的bigint**。 +``` + +* preceding为闭区间,包含该条,开区间需使用open preceding 窗口还可以exclude current time,current row等,详情见下文。 @@ -332,5 +348,5 @@ WINDOW w1 AS (PARTITION BY col1 ORDER BY col5 ROWS_RANGE BETWEEN 10s PRECEDING A ``` ```{seealso} -窗口计算可使用的聚合函数,参考[Built-in Functions](../functions_and_operators/Files/udfs_8h.md) +窗口计算可使用的聚合函数,参考[Built-in Functions](../udfs_8h.md) ``` diff --git a/docs/zh/openmldb_sql/functions_and_operators/index.rst b/docs/zh/openmldb_sql/functions_and_operators/index.rst index 36329c03045..8dfb1e18cee 100644 --- a/docs/zh/openmldb_sql/functions_and_operators/index.rst +++ b/docs/zh/openmldb_sql/functions_and_operators/index.rst @@ -7,4 +7,3 @@ :maxdepth: 1 operators - Files/udfs_8h diff --git a/docs/zh/openmldb_sql/index.rst b/docs/zh/openmldb_sql/index.rst index 7d00e9ed532..149147f1f55 100644 --- a/docs/zh/openmldb_sql/index.rst +++ b/docs/zh/openmldb_sql/index.rst @@ -10,6 +10,7 @@ OpenMLDB SQL language_structure/index data_types/index functions_and_operators/index + udfs_8h dql/index dml/index ddl/index diff --git a/docs/zh/openmldb_sql/sql_difference.md b/docs/zh/openmldb_sql/sql_difference.md index 3118f8f71bb..3d24f399f4d 100644 --- a/docs/zh/openmldb_sql/sql_difference.md +++ b/docs/zh/openmldb_sql/sql_difference.md @@ -54,7 +54,7 @@ | LAST JOIN | ✓ | ✓ | ✕ | | 子查询 / WITH 子句 | ✓ | ✓ | ✕ | -虽然在线请求模式无法支持 `WHERE` 子句,但是部分功能可以通过带有 `_where` 后缀的计算函数实现,比如 `count_where`, `avg_where` 等,详情查看[内置计算函数文档](functions_and_operators/Files/udfs_8h.md)。 +虽然在线请求模式无法支持 `WHERE` 子句,但是部分功能可以通过带有 `_where` 后缀的计算函数实现,比如 `count_where`, `avg_where` 等,详情查看[内置计算函数文档](./udfs_8h.md)。 ### LIMIT 子句 @@ -127,7 +127,7 @@ OpenMLDB (>= v0.7.2) 支持非递归的 WITH 子句。WITH 子句等价于其它 特殊限制: - OpenMLDB v0.6.0 开始支持在线预览模式的全表聚合,但注意所描述的[扫描限制配置](https://openmldb.feishu.cn/wiki/wikcnhBl4NsKcAX6BO9NDtKAxDf#doxcnLWICKzccMuPiWwdpVjSaIe)。 -- OpenMLDB 有较多的聚合函数扩展,请查看产品文档具体查询所支持的函数 [OpenMLDB 内置函数](../openmldb_sql/functions_and_operators/Files/udfs_8h.md)。 +- OpenMLDB 有较多的聚合函数扩展,请查看产品文档具体查询所支持的函数 [OpenMLDB 内置函数](../openmldb_sql/udfs_8h.md)。 ## 扩展语法 diff --git a/docs/zh/openmldb_sql/udf_develop_guide.md b/docs/zh/openmldb_sql/udf_develop_guide.md index 7fe4e81988d..761e66dea6f 100644 --- a/docs/zh/openmldb_sql/udf_develop_guide.md +++ b/docs/zh/openmldb_sql/udf_develop_guide.md @@ -11,7 +11,7 @@ #### 2.1.1 C++函数名规范 - C++内置函数名统一使用[snake_case](https://en.wikipedia.org/wiki/Snake_case)风格 - 要求函数名能清晰表达函数功能 -- 函数不能重名。函数名不能和内置函数及其他自定义函数重名。所有内置函数的列表参考[这里](../openmldb_sql/functions_and_operators/Files/udfs_8h.md) +- 函数不能重名。函数名不能和内置函数及其他自定义函数重名。所有内置函数的列表参考[这里](../openmldb_sql/udfs_8h.md) #### 2.1.2 C++类型与SQL类型对应关系 内置C++函数的参数类型限定为:BOOL类型,数值类型,时间戳日期类型和字符串类型。C++类型SQL类型对应关系如下: diff --git a/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md b/docs/zh/openmldb_sql/udfs_8h.md similarity index 68% rename from docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md rename to docs/zh/openmldb_sql/udfs_8h.md index d1696b6c764..9cfab05977f 100644 --- a/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md +++ b/docs/zh/openmldb_sql/udfs_8h.md @@ -10,158 +10,158 @@ title: udfs/udfs.h | Name | Description | | -------------- | -------------- | -| **[abs](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-abs)**()|
    Return the absolute value of expr. | -| **[acos](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-acos)**()|
    Return the arc cosine of expr. | -| **[add](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-add)**()|
    Compute sum of two arguments. | -| **[add_months](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-add-months)**()|
    adds an integer months to a given date, returning the resulting date. | -| **[array_contains](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-array-contains)**()|
    array_contains(array, value) - Returns true if the array contains the value. | -| **[asin](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-asin)**()|
    Return the arc sine of expr. | -| **[at](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-at)**()| | -| **[atan](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-atan)**()|
    Return the arc tangent of expr If called with one parameter, this function returns the arc tangent of expr. If called with two parameters X and Y, this function returns the arc tangent of Y / X. | -| **[atan2](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-atan2)**()|
    Return the arc tangent of Y / X.. | -| **[avg](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-avg)**()|
    Compute average of values. | -| **[avg_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-avg-cate)**()|
    Compute average of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[avg_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V', separated by comma, and sorted by key in ascend order. | -| **[avg_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-avg-where)**()|
    Compute average of values match specified condition. | -| **[bigint](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-bigint)**()| | -| **[bool](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-bool)**()|
    Cast string expression to bool. | -| **[ceil](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ceil)**()|
    Return the smallest integer value not less than the expr. | -| **[ceiling](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ceiling)**()| | -| **[char](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-char)**()|
    Returns the ASCII character having the binary equivalent to expr. If n >= 256 the result is equivalent to char(n % 256). | -| **[char_length](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-char-length)**()|
    Returns the length of the string. It is measured in characters and multibyte character string is not supported. | -| **[character_length](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-character-length)**()| | -| **[concat](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-concat)**()|
    This function returns a string resulting from the joining of two or more string values in an end-to-end manner. (To add a separating value during joining, see concat_ws.) | -| **[concat_ws](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-concat-ws)**()|
    Returns a string resulting from the joining of two or more string value in an end-to-end manner. It separates those concatenated string values with the delimiter specified in the first function argument. | -| **[cos](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-cos)**()|
    Return the cosine of expr. | -| **[cot](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-cot)**()|
    Return the cotangent of expr. | -| **[count](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-count)**()|
    Compute number of values. | -| **[count_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-count-cate)**()|
    Compute count of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[count_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[count_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-count-where)**()|
    Compute number of values match specified condition. | -| **[date](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-date)**()|
    Cast timestamp or string expression to date (date >= 1900-01-01) | -| **[date_format](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-date-format)**()|
    Formats the date value according to the format string. | -| **[datediff](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-datediff)**()|
    days difference from date1 to date2 | -| **[day](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-day)**()| | -| **[dayofmonth](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-dayofmonth)**()|
    Return the day of the month for a timestamp or date. | -| **[dayofweek](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-dayofweek)**()|
    Return the day of week for a timestamp or date. | -| **[dayofyear](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-dayofyear)**()|
    Return the day of year for a timestamp or date. Returns 0 given an invalid date. | -| **[degrees](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-degrees)**()|
    Convert radians to degrees. | -| **[distinct_count](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-distinct-count)**()|
    Compute number of distinct values. | -| **[double](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-double)**()|
    Cast string expression to double. | -| **[drawdown](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-drawdown)**()|
    Compute drawdown of values. | -| **[earth_distance](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-earth-distance)**()|
    Returns the great circle distance between two points on the surface of the Earth. Km as return unit. add a minus (-) sign if heading west (W) or south (S). | -| **[entropy](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-entropy)**()|
    Calculate Shannon entropy of a column of values. Null values are skipped. | -| **[ew_avg](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ew-avg)**()|
    Compute exponentially-weighted average of values. It's equivalent to pandas ewm(alpha={alpha}, adjust=True, ignore_na=True, com=None, span=None, halflife=None, min_periods=0) | -| **[exp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-exp)**()|
    Return the value of e (the base of natural logarithms) raised to the power of expr. | -| **[farm_fingerprint](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-farm-fingerprint)**()| | -| **[first_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-first-value)**()|
    Returns the value of expr from the latest row (last row) of the window frame. | -| **[float](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-float)**()|
    Cast string expression to float. | -| **[floor](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-floor)**()|
    Return the largest integer value not less than the expr. | -| **[get_json_object](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-get-json-object)**()|
    Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901)| -| **[hash64](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hash64)**()|
    Returns a hash value of the arguments. It is not a cryptographic hash function and should not be used as such. | -| **[hex](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hex)**()|
    Convert integer to hexadecimal. | -| **[hour](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-hour)**()|
    Return the hour for a timestamp. | -| **[identity](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-identity)**()|
    Return value. | -| **[if_null](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-if-null)**()|
    If input is not null, return input value; else return default value. | -| **[ifnull](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ifnull)**()| | -| **[ilike_match](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ilike-match)**()|
    pattern match same as ILIKE predicate | -| **[inc](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-inc)**()|
    Return expression + 1. | -| **[int](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-int)**()| | -| **[int16](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-int16)**()|
    Cast string expression to int16. | -| **[int32](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-int32)**()|
    Cast string expression to int32. | -| **[int64](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-int64)**()|
    Cast string expression to int64. | -| **[is_null](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-is-null)**()|
    Check if input value is null, return bool. | -| **[isnull](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-isnull)**()| | -| **[join](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-join)**()|
    For each string value from specified column of window, join by delimeter. Null values are skipped. | -| **[json_array_length](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-json-array-length)**()|
    Returns the number of elements in the outermost JSON array. | -| **[lag](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lag)**()|
    Returns value evaluated at the row that is offset rows before the current row within the partition. Offset is evaluated with respect to the current row. | -| **[last_day](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-last-day)**()|
    Return the last day of the month to which the date belongs to. | -| **[lcase](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lcase)**()|
    Convert all the characters to lowercase. Note that characters with values > 127 are simply returned. | -| **[like_match](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-like-match)**()|
    pattern match same as LIKE predicate | -| **[list_except_by_key](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-list-except-by-key)**()|
    Return list of elements in list1 but keys not in except_str. | -| **[list_except_by_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-list-except-by-value)**()|
    Return list of elements in list1 but values not in except_str. | -| **[ln](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ln)**()|
    Return the natural logarithm of expr. | -| **[log](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-log)**()|
    log(base, expr) If called with one parameter, this function returns the natural logarithm of expr. If called with two parameters, this function returns the logarithm of expr to the base. | -| **[log10](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-log10)**()|
    Return the base-10 logarithm of expr. | -| **[log2](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-log2)**()|
    Return the base-2 logarithm of expr. | -| **[lower](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lower)**()| | -| **[make_tuple](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-make-tuple)**()| | -| **[max](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-max)**()|
    Compute maximum of values. | -| **[max_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-max-cate)**()|
    Compute maximum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[max_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[max_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-max-where)**()|
    Compute maximum of values match specified condition. | -| **[maximum](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-maximum)**()|
    Compute maximum of two arguments. | -| **[median](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-median)**()|
    Compute the median of values. | -| **[min](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-min)**()|
    Compute minimum of values. | -| **[min_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-min-cate)**()|
    Compute minimum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[min_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[min_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-min-where)**()|
    Compute minimum of values match specified condition. | -| **[minimum](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-minimum)**()|
    Compute minimum of two arguments. | -| **[minute](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-minute)**()|
    Return the minute for a timestamp. | -| **[month](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-month)**()|
    Return the month part of a timestamp or date. | -| **[nth_value_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-nth-value-where)**()|
    Returns the value of expr from the idx th row matches the condition. | -| **[nvl](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-nvl)**()| | -| **[nvl2](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-nvl2)**()|
    nvl2(expr1, expr2, expr3) - Returns expr2 if expr1 is not null, or expr3 otherwise. | -| **[pmod](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-pmod)**()|
    Compute pmod of two arguments. If any param is NULL, output NULL. If divisor is 0, output NULL. | -| **[pow](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-pow)**()|
    Return the value of expr1 to the power of expr2. | -| **[power](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-power)**()| | -| **[radians](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-radians)**()|
    Returns the argument X, converted from degrees to radians. (Note that π radians equals 180 degrees.) | -| **[regexp_like](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-regexp-like)**()|
    pattern match same as RLIKE predicate (based on RE2) | -| **[replace](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-replace)**()|
    replace(str, search[, replace]) - Replaces all occurrences of `search` with `replace`| -| **[reverse](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-reverse)**()|
    Returns the reversed given string. | -| **[round](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-round)**()|
    Returns expr rounded to d decimal places using HALF_UP rounding mode. | -| **[second](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-second)**()|
    Return the second for a timestamp. | -| **[sin](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sin)**()|
    Return the sine of expr. | -| **[size](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-size)**()|
    Get the size of a List (e.g., result of split) | -| **[smallint](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-smallint)**()| | -| **[split](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-split)**()|
    Split string to list by delimeter. Null values are skipped. | -| **[split_array](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-split-array)**()|
    Split string to array of string by delimeter. | -| **[split_by_key](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-split-by-key)**()|
    Split string by delimeter and split each segment as kv pair, then add each key to output list. Null or illegal segments are skipped. | -| **[split_by_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-split-by-value)**()|
    Split string by delimeter and split each segment as kv pair, then add each value to output list. Null or illegal segments are skipped. | -| **[sqrt](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sqrt)**()|
    Return square root of expr. | -| **[std](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-std)**()| | -| **[stddev](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-stddev)**()|
    Compute sample standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) / (n-1) )`| -| **[stddev_pop](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-stddev-pop)**()|
    Compute population standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) / n )`| -| **[stddev_samp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-stddev-samp)**()| | -| **[strcmp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-strcmp)**()|
    Returns 0 if the strings are the same, -1 if the first argument is smaller than the second according to the current sort order, and 1 otherwise. | -| **[string](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-string)**()|
    Return string converted from timestamp expression. | -| **[substr](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-substr)**()| | -| **[substring](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-substring)**()|
    Return a substring `len` characters long from string str, starting at position `pos`. Alias function: `substr`| -| **[sum](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sum)**()|
    Compute sum of values. | -| **[sum_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sum-cate)**()|
    Compute sum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[sum_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | -| **[sum_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sum-where)**()|
    Compute sum of values match specified condition. | -| **[tan](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-tan)**()|
    Return the tangent of expr. | -| **[timestamp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-timestamp)**()|
    Cast int64, date or string expression to timestamp. | -| **[top](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top)**()|
    Compute top k of values and output string separated by comma. The outputs are sorted in desc order. | -| **[top1_ratio](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top1-ratio)**()|
    Compute the top1 occurring value's ratio. | -| **[top_n_key_avg_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_key_count_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_key_max_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_key_min_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_key_ratio_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-ratio-cate)**()|
    Ratios (cond match cnt / total cnt) for groups. | -| **[top_n_key_sum_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-key-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_avg_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_count_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_max_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_min_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[top_n_value_ratio_cate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-ratio-cate)**()|
    Ratios (cond match cnt / total cnt) for groups. | -| **[top_n_value_sum_cate_where](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-top-n-value-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | -| **[topn_frequency](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-topn-frequency)**()|
    Return the topN keys sorted by their frequency. | -| **[truncate](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-truncate)**()|
    Return the nearest integer that is not greater in magnitude than the expr. | -| **[ucase](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-ucase)**()|
    Convert all the characters to uppercase. Note that characters values > 127 are simply returned. | -| **[unhex](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-unhex)**()|
    Convert hexadecimal to binary string. | -| **[unix_timestamp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-unix-timestamp)**()|
    Cast date or string expression to unix_timestamp. If empty string or NULL is provided, return current timestamp. | -| **[upper](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-upper)**()| | -| **[var_pop](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-var-pop)**()|
    Compute population variance of values, i.e., `sum((x_i - avg)^2) / n`| -| **[var_samp](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-var-samp)**()|
    Compute population variance of values, i.e., `sum((x_i - avg)^2) / (n-1)`| -| **[variance](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-variance)**()| | -| **[week](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-week)**()| | -| **[weekofyear](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-weekofyear)**()|
    Return the week of year for a timestamp or date. | -| **[window_split](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-window-split)**()|
    For each string value from specified column of window, split by delimeter and add segment to output list. Null values are skipped. | -| **[window_split_by_key](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-window-split-by-key)**()|
    For each string value from specified column of window, split by delimeter and then split each segment as kv pair, then add each key to output list. Null and illegal segments are skipped. | -| **[window_split_by_value](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-window-split-by-value)**()|
    For each string value from specified column of window, split by delimeter and then split each segment as kv pair, then add each value to output list. Null and illegal segments are skipped. | -| **[year](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-year)**()|
    Return the year part of a timestamp or date. | +| **[abs](/openmldb_sql/Files/udfs_8h.md#function-abs)**()|
    Return the absolute value of expr. | +| **[acos](/openmldb_sql/Files/udfs_8h.md#function-acos)**()|
    Return the arc cosine of expr. | +| **[add](/openmldb_sql/Files/udfs_8h.md#function-add)**()|
    Compute sum of two arguments. | +| **[add_months](/openmldb_sql/Files/udfs_8h.md#function-add-months)**()|
    adds an integer months to a given date, returning the resulting date. | +| **[array_contains](/openmldb_sql/Files/udfs_8h.md#function-array-contains)**()|
    array_contains(array, value) - Returns true if the array contains the value. | +| **[asin](/openmldb_sql/Files/udfs_8h.md#function-asin)**()|
    Return the arc sine of expr. | +| **[at](/openmldb_sql/Files/udfs_8h.md#function-at)**()| | +| **[atan](/openmldb_sql/Files/udfs_8h.md#function-atan)**()|
    Return the arc tangent of expr If called with one parameter, this function returns the arc tangent of expr. If called with two parameters X and Y, this function returns the arc tangent of Y / X. | +| **[atan2](/openmldb_sql/Files/udfs_8h.md#function-atan2)**()|
    Return the arc tangent of Y / X.. | +| **[avg](/openmldb_sql/Files/udfs_8h.md#function-avg)**()|
    Compute average of values. | +| **[avg_cate](/openmldb_sql/Files/udfs_8h.md#function-avg-cate)**()|
    Compute average of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[avg_cate_where](/openmldb_sql/Files/udfs_8h.md#function-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V', separated by comma, and sorted by key in ascend order. | +| **[avg_where](/openmldb_sql/Files/udfs_8h.md#function-avg-where)**()|
    Compute average of values match specified condition. | +| **[bigint](/openmldb_sql/Files/udfs_8h.md#function-bigint)**()| | +| **[bool](/openmldb_sql/Files/udfs_8h.md#function-bool)**()|
    Cast string expression to bool. | +| **[ceil](/openmldb_sql/Files/udfs_8h.md#function-ceil)**()|
    Return the smallest integer value not less than the expr. | +| **[ceiling](/openmldb_sql/Files/udfs_8h.md#function-ceiling)**()| | +| **[char](/openmldb_sql/Files/udfs_8h.md#function-char)**()|
    Returns the ASCII character having the binary equivalent to expr. If n >= 256 the result is equivalent to char(n % 256). | +| **[char_length](/openmldb_sql/Files/udfs_8h.md#function-char-length)**()|
    Returns the length of the string. It is measured in characters and multibyte character string is not supported. | +| **[character_length](/openmldb_sql/Files/udfs_8h.md#function-character-length)**()| | +| **[concat](/openmldb_sql/Files/udfs_8h.md#function-concat)**()|
    This function returns a string resulting from the joining of two or more string values in an end-to-end manner. (To add a separating value during joining, see concat_ws.) | +| **[concat_ws](/openmldb_sql/Files/udfs_8h.md#function-concat-ws)**()|
    Returns a string resulting from the joining of two or more string value in an end-to-end manner. It separates those concatenated string values with the delimiter specified in the first function argument. | +| **[cos](/openmldb_sql/Files/udfs_8h.md#function-cos)**()|
    Return the cosine of expr. | +| **[cot](/openmldb_sql/Files/udfs_8h.md#function-cot)**()|
    Return the cotangent of expr. | +| **[count](/openmldb_sql/Files/udfs_8h.md#function-count)**()|
    Compute number of values. | +| **[count_cate](/openmldb_sql/Files/udfs_8h.md#function-count-cate)**()|
    Compute count of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[count_cate_where](/openmldb_sql/Files/udfs_8h.md#function-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[count_where](/openmldb_sql/Files/udfs_8h.md#function-count-where)**()|
    Compute number of values match specified condition. | +| **[date](/openmldb_sql/Files/udfs_8h.md#function-date)**()|
    Cast timestamp or string expression to date (date >= 1900-01-01) | +| **[date_format](/openmldb_sql/Files/udfs_8h.md#function-date-format)**()|
    Formats the date value according to the format string. | +| **[datediff](/openmldb_sql/Files/udfs_8h.md#function-datediff)**()|
    days difference from date1 to date2 | +| **[day](/openmldb_sql/Files/udfs_8h.md#function-day)**()| | +| **[dayofmonth](/openmldb_sql/Files/udfs_8h.md#function-dayofmonth)**()|
    Return the day of the month for a timestamp or date. | +| **[dayofweek](/openmldb_sql/Files/udfs_8h.md#function-dayofweek)**()|
    Return the day of week for a timestamp or date. | +| **[dayofyear](/openmldb_sql/Files/udfs_8h.md#function-dayofyear)**()|
    Return the day of year for a timestamp or date. Returns 0 given an invalid date. | +| **[degrees](/openmldb_sql/Files/udfs_8h.md#function-degrees)**()|
    Convert radians to degrees. | +| **[distinct_count](/openmldb_sql/Files/udfs_8h.md#function-distinct-count)**()|
    Compute number of distinct values. | +| **[double](/openmldb_sql/Files/udfs_8h.md#function-double)**()|
    Cast string expression to double. | +| **[drawdown](/openmldb_sql/Files/udfs_8h.md#function-drawdown)**()|
    Compute drawdown of values. | +| **[earth_distance](/openmldb_sql/Files/udfs_8h.md#function-earth-distance)**()|
    Returns the great circle distance between two points on the surface of the Earth. Km as return unit. add a minus (-) sign if heading west (W) or south (S). | +| **[entropy](/openmldb_sql/Files/udfs_8h.md#function-entropy)**()|
    Calculate Shannon entropy of a column of values. Null values are skipped. | +| **[ew_avg](/openmldb_sql/Files/udfs_8h.md#function-ew-avg)**()|
    Compute exponentially-weighted average of values. It's equivalent to pandas ewm(alpha={alpha}, adjust=True, ignore_na=True, com=None, span=None, halflife=None, min_periods=0) | +| **[exp](/openmldb_sql/Files/udfs_8h.md#function-exp)**()|
    Return the value of e (the base of natural logarithms) raised to the power of expr. | +| **[farm_fingerprint](/openmldb_sql/Files/udfs_8h.md#function-farm-fingerprint)**()| | +| **[first_value](/openmldb_sql/Files/udfs_8h.md#function-first-value)**()|
    Returns the value of expr from the latest row (last row) of the window frame. | +| **[float](/openmldb_sql/Files/udfs_8h.md#function-float)**()|
    Cast string expression to float. | +| **[floor](/openmldb_sql/Files/udfs_8h.md#function-floor)**()|
    Return the largest integer value not less than the expr. | +| **[get_json_object](/openmldb_sql/Files/udfs_8h.md#function-get-json-object)**()|
    Extracts a JSON object from [JSON Pointer](https://datatracker.ietf.org/doc/html/rfc6901)| +| **[hash64](/openmldb_sql/Files/udfs_8h.md#function-hash64)**()|
    Returns a hash value of the arguments. It is not a cryptographic hash function and should not be used as such. | +| **[hex](/openmldb_sql/Files/udfs_8h.md#function-hex)**()|
    Convert integer to hexadecimal. | +| **[hour](/openmldb_sql/Files/udfs_8h.md#function-hour)**()|
    Return the hour for a timestamp. | +| **[identity](/openmldb_sql/Files/udfs_8h.md#function-identity)**()|
    Return value. | +| **[if_null](/openmldb_sql/Files/udfs_8h.md#function-if-null)**()|
    If input is not null, return input value; else return default value. | +| **[ifnull](/openmldb_sql/Files/udfs_8h.md#function-ifnull)**()| | +| **[ilike_match](/openmldb_sql/Files/udfs_8h.md#function-ilike-match)**()|
    pattern match same as ILIKE predicate | +| **[inc](/openmldb_sql/Files/udfs_8h.md#function-inc)**()|
    Return expression + 1. | +| **[int](/openmldb_sql/Files/udfs_8h.md#function-int)**()| | +| **[int16](/openmldb_sql/Files/udfs_8h.md#function-int16)**()|
    Cast string expression to int16. | +| **[int32](/openmldb_sql/Files/udfs_8h.md#function-int32)**()|
    Cast string expression to int32. | +| **[int64](/openmldb_sql/Files/udfs_8h.md#function-int64)**()|
    Cast string expression to int64. | +| **[is_null](/openmldb_sql/Files/udfs_8h.md#function-is-null)**()|
    Check if input value is null, return bool. | +| **[isnull](/openmldb_sql/Files/udfs_8h.md#function-isnull)**()| | +| **[join](/openmldb_sql/Files/udfs_8h.md#function-join)**()|
    For each string value from specified column of window, join by delimeter. Null values are skipped. | +| **[json_array_length](/openmldb_sql/Files/udfs_8h.md#function-json-array-length)**()|
    Returns the number of elements in the outermost JSON array. | +| **[lag](/openmldb_sql/Files/udfs_8h.md#function-lag)**()|
    Returns value evaluated at the row that is offset rows before the current row within the partition. Offset is evaluated with respect to the current row. | +| **[last_day](/openmldb_sql/Files/udfs_8h.md#function-last-day)**()|
    Return the last day of the month to which the date belongs to. | +| **[lcase](/openmldb_sql/Files/udfs_8h.md#function-lcase)**()|
    Convert all the characters to lowercase. Note that characters with values > 127 are simply returned. | +| **[like_match](/openmldb_sql/Files/udfs_8h.md#function-like-match)**()|
    pattern match same as LIKE predicate | +| **[list_except_by_key](/openmldb_sql/Files/udfs_8h.md#function-list-except-by-key)**()|
    Return list of elements in list1 but keys not in except_str. | +| **[list_except_by_value](/openmldb_sql/Files/udfs_8h.md#function-list-except-by-value)**()|
    Return list of elements in list1 but values not in except_str. | +| **[ln](/openmldb_sql/Files/udfs_8h.md#function-ln)**()|
    Return the natural logarithm of expr. | +| **[log](/openmldb_sql/Files/udfs_8h.md#function-log)**()|
    log(base, expr) If called with one parameter, this function returns the natural logarithm of expr. If called with two parameters, this function returns the logarithm of expr to the base. | +| **[log10](/openmldb_sql/Files/udfs_8h.md#function-log10)**()|
    Return the base-10 logarithm of expr. | +| **[log2](/openmldb_sql/Files/udfs_8h.md#function-log2)**()|
    Return the base-2 logarithm of expr. | +| **[lower](/openmldb_sql/Files/udfs_8h.md#function-lower)**()| | +| **[make_tuple](/openmldb_sql/Files/udfs_8h.md#function-make-tuple)**()| | +| **[max](/openmldb_sql/Files/udfs_8h.md#function-max)**()|
    Compute maximum of values. | +| **[max_cate](/openmldb_sql/Files/udfs_8h.md#function-max-cate)**()|
    Compute maximum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[max_cate_where](/openmldb_sql/Files/udfs_8h.md#function-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[max_where](/openmldb_sql/Files/udfs_8h.md#function-max-where)**()|
    Compute maximum of values match specified condition. | +| **[maximum](/openmldb_sql/Files/udfs_8h.md#function-maximum)**()|
    Compute maximum of two arguments. | +| **[median](/openmldb_sql/Files/udfs_8h.md#function-median)**()|
    Compute the median of values. | +| **[min](/openmldb_sql/Files/udfs_8h.md#function-min)**()|
    Compute minimum of values. | +| **[min_cate](/openmldb_sql/Files/udfs_8h.md#function-min-cate)**()|
    Compute minimum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[min_cate_where](/openmldb_sql/Files/udfs_8h.md#function-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[min_where](/openmldb_sql/Files/udfs_8h.md#function-min-where)**()|
    Compute minimum of values match specified condition. | +| **[minimum](/openmldb_sql/Files/udfs_8h.md#function-minimum)**()|
    Compute minimum of two arguments. | +| **[minute](/openmldb_sql/Files/udfs_8h.md#function-minute)**()|
    Return the minute for a timestamp. | +| **[month](/openmldb_sql/Files/udfs_8h.md#function-month)**()|
    Return the month part of a timestamp or date. | +| **[nth_value_where](/openmldb_sql/Files/udfs_8h.md#function-nth-value-where)**()|
    Returns the value of expr from the idx th row matches the condition. | +| **[nvl](/openmldb_sql/Files/udfs_8h.md#function-nvl)**()| | +| **[nvl2](/openmldb_sql/Files/udfs_8h.md#function-nvl2)**()|
    nvl2(expr1, expr2, expr3) - Returns expr2 if expr1 is not null, or expr3 otherwise. | +| **[pmod](/openmldb_sql/Files/udfs_8h.md#function-pmod)**()|
    Compute pmod of two arguments. If any param is NULL, output NULL. If divisor is 0, output NULL. | +| **[pow](/openmldb_sql/Files/udfs_8h.md#function-pow)**()|
    Return the value of expr1 to the power of expr2. | +| **[power](/openmldb_sql/Files/udfs_8h.md#function-power)**()| | +| **[radians](/openmldb_sql/Files/udfs_8h.md#function-radians)**()|
    Returns the argument X, converted from degrees to radians. (Note that π radians equals 180 degrees.) | +| **[regexp_like](/openmldb_sql/Files/udfs_8h.md#function-regexp-like)**()|
    pattern match same as RLIKE predicate (based on RE2) | +| **[replace](/openmldb_sql/Files/udfs_8h.md#function-replace)**()|
    replace(str, search[, replace]) - Replaces all occurrences of `search` with `replace`| +| **[reverse](/openmldb_sql/Files/udfs_8h.md#function-reverse)**()|
    Returns the reversed given string. | +| **[round](/openmldb_sql/Files/udfs_8h.md#function-round)**()|
    Returns expr rounded to d decimal places using HALF_UP rounding mode. | +| **[second](/openmldb_sql/Files/udfs_8h.md#function-second)**()|
    Return the second for a timestamp. | +| **[sin](/openmldb_sql/Files/udfs_8h.md#function-sin)**()|
    Return the sine of expr. | +| **[size](/openmldb_sql/Files/udfs_8h.md#function-size)**()|
    Get the size of a List (e.g., result of split) | +| **[smallint](/openmldb_sql/Files/udfs_8h.md#function-smallint)**()| | +| **[split](/openmldb_sql/Files/udfs_8h.md#function-split)**()|
    Split string to list by delimeter. Null values are skipped. | +| **[split_array](/openmldb_sql/Files/udfs_8h.md#function-split-array)**()|
    Split string to array of string by delimeter. | +| **[split_by_key](/openmldb_sql/Files/udfs_8h.md#function-split-by-key)**()|
    Split string by delimeter and split each segment as kv pair, then add each key to output list. Null or illegal segments are skipped. | +| **[split_by_value](/openmldb_sql/Files/udfs_8h.md#function-split-by-value)**()|
    Split string by delimeter and split each segment as kv pair, then add each value to output list. Null or illegal segments are skipped. | +| **[sqrt](/openmldb_sql/Files/udfs_8h.md#function-sqrt)**()|
    Return square root of expr. | +| **[std](/openmldb_sql/Files/udfs_8h.md#function-std)**()| | +| **[stddev](/openmldb_sql/Files/udfs_8h.md#function-stddev)**()|
    Compute sample standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) / (n-1) )`| +| **[stddev_pop](/openmldb_sql/Files/udfs_8h.md#function-stddev-pop)**()|
    Compute population standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) / n )`| +| **[stddev_samp](/openmldb_sql/Files/udfs_8h.md#function-stddev-samp)**()| | +| **[strcmp](/openmldb_sql/Files/udfs_8h.md#function-strcmp)**()|
    Returns 0 if the strings are the same, -1 if the first argument is smaller than the second according to the current sort order, and 1 otherwise. | +| **[string](/openmldb_sql/Files/udfs_8h.md#function-string)**()|
    Return string converted from timestamp expression. | +| **[substr](/openmldb_sql/Files/udfs_8h.md#function-substr)**()| | +| **[substring](/openmldb_sql/Files/udfs_8h.md#function-substring)**()|
    Return a substring `len` characters long from string str, starting at position `pos`. Alias function: `substr`| +| **[sum](/openmldb_sql/Files/udfs_8h.md#function-sum)**()|
    Compute sum of values. | +| **[sum_cate](/openmldb_sql/Files/udfs_8h.md#function-sum-cate)**()|
    Compute sum of values grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[sum_cate_where](/openmldb_sql/Files/udfs_8h.md#function-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key and output string. Each group is represented as 'K:V' and separated by comma in outputs and are sorted by key in ascend order. | +| **[sum_where](/openmldb_sql/Files/udfs_8h.md#function-sum-where)**()|
    Compute sum of values match specified condition. | +| **[tan](/openmldb_sql/Files/udfs_8h.md#function-tan)**()|
    Return the tangent of expr. | +| **[timestamp](/openmldb_sql/Files/udfs_8h.md#function-timestamp)**()|
    Cast int64, date or string expression to timestamp. | +| **[top](/openmldb_sql/Files/udfs_8h.md#function-top)**()|
    Compute top k of values and output string separated by comma. The outputs are sorted in desc order. | +| **[top1_ratio](/openmldb_sql/Files/udfs_8h.md#function-top1-ratio)**()|
    Compute the top1 occurring value's ratio. | +| **[top_n_key_avg_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_key_count_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_key_max_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_key_min_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_key_ratio_cate](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-ratio-cate)**()|
    Ratios (cond match cnt / total cnt) for groups. | +| **[top_n_key_sum_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-key-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key. Output string for top N category keys in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_avg_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-avg-cate-where)**()|
    Compute average of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_count_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-count-cate-where)**()|
    Compute count of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_max_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-max-cate-where)**()|
    Compute maximum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_min_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-min-cate-where)**()|
    Compute minimum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[top_n_value_ratio_cate](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-ratio-cate)**()|
    Ratios (cond match cnt / total cnt) for groups. | +| **[top_n_value_sum_cate_where](/openmldb_sql/Files/udfs_8h.md#function-top-n-value-sum-cate-where)**()|
    Compute sum of values matching specified condition grouped by category key. Output string for top N aggregate values in descend order. Each group is represented as 'K:V' and separated by comma(,). Empty string returned if no rows selected. | +| **[topn_frequency](/openmldb_sql/Files/udfs_8h.md#function-topn-frequency)**()|
    Return the topN keys sorted by their frequency. | +| **[truncate](/openmldb_sql/Files/udfs_8h.md#function-truncate)**()|
    Return the nearest integer that is not greater in magnitude than the expr. | +| **[ucase](/openmldb_sql/Files/udfs_8h.md#function-ucase)**()|
    Convert all the characters to uppercase. Note that characters values > 127 are simply returned. | +| **[unhex](/openmldb_sql/Files/udfs_8h.md#function-unhex)**()|
    Convert hexadecimal to binary string. | +| **[unix_timestamp](/openmldb_sql/Files/udfs_8h.md#function-unix-timestamp)**()|
    Cast date or string expression to unix_timestamp. If empty string or NULL is provided, return current timestamp. | +| **[upper](/openmldb_sql/Files/udfs_8h.md#function-upper)**()| | +| **[var_pop](/openmldb_sql/Files/udfs_8h.md#function-var-pop)**()|
    Compute population variance of values, i.e., `sum((x_i - avg)^2) / n`| +| **[var_samp](/openmldb_sql/Files/udfs_8h.md#function-var-samp)**()|
    Compute population variance of values, i.e., `sum((x_i - avg)^2) / (n-1)`| +| **[variance](/openmldb_sql/Files/udfs_8h.md#function-variance)**()| | +| **[week](/openmldb_sql/Files/udfs_8h.md#function-week)**()| | +| **[weekofyear](/openmldb_sql/Files/udfs_8h.md#function-weekofyear)**()|
    Return the week of year for a timestamp or date. | +| **[window_split](/openmldb_sql/Files/udfs_8h.md#function-window-split)**()|
    For each string value from specified column of window, split by delimeter and add segment to output list. Null values are skipped. | +| **[window_split_by_key](/openmldb_sql/Files/udfs_8h.md#function-window-split-by-key)**()|
    For each string value from specified column of window, split by delimeter and then split each segment as kv pair, then add each key to output list. Null and illegal segments are skipped. | +| **[window_split_by_value](/openmldb_sql/Files/udfs_8h.md#function-window-split-by-value)**()|
    For each string value from specified column of window, split by delimeter and then split each segment as kv pair, then add each value to output list. Null and illegal segments are skipped. | +| **[year](/openmldb_sql/Files/udfs_8h.md#function-year)**()|
    Return the year part of a timestamp or date. | ## Functions Documentation @@ -501,13 +501,13 @@ Compute average of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -541,13 +541,13 @@ Compute average of values grouped by category key and output string. Each group Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -586,13 +586,13 @@ Compute average of values matching specified condition grouped by category key a Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | ```sql @@ -634,13 +634,13 @@ Compute average of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -884,7 +884,7 @@ SELECT COS(0); -* The value returned by [cos()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-cos) is always in the range: -1 to 1. +* The value returned by [cos()](/openmldb_sql/Files/udfs_8h.md#function-cos) is always in the range: -1 to 1. **Supported Types**: @@ -946,13 +946,13 @@ Compute number of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -987,13 +987,13 @@ Compute count of values grouped by category key and output string. Each group is Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -1032,13 +1032,13 @@ Compute count of values matching specified condition grouped by category key and Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | ```sql @@ -1080,13 +1080,13 @@ Compute number of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -1230,7 +1230,7 @@ Return the day of the month for a timestamp or date. 0.1.0 -Note: This function equals the `[day()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-day)` function. +Note: This function equals the `[day()](/openmldb_sql/Files/udfs_8h.md#function-day)` function. Example: @@ -1264,7 +1264,7 @@ Return the day of week for a timestamp or date. 0.4.0 -Note: This function equals the `[week()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-week)` function. +Note: This function equals the `[week()](/openmldb_sql/Files/udfs_8h.md#function-week)` function. Example: @@ -1374,13 +1374,13 @@ Compute number of distinct values. Example: -| value | +| value | | -------- | -| 0 | -| 0 | -| 2 | -| 2 | -| 4 | +| 0 | +| 0 | +| 2 | +| 2 | +| 4 | ```sql @@ -1450,14 +1450,14 @@ It requires that all values are non-negative. Negative values will be ignored. Example: -| value | +| value | | -------- | -| 1 | -| 8 | -| 5 | -| 2 | -| 10 | -| 4 | +| 1 | +| 8 | +| 5 | +| 2 | +| 10 | +| 4 | ```sql @@ -1568,13 +1568,13 @@ It requires that values are ordered so that it can only be used with WINDOW (PAR Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -1652,11 +1652,11 @@ window w as (partition by gp order by ts rows between 3 preceding and current ro ``` -| id | gp | ts | agg | +| id | gp | ts | agg | | -------- | -------- | -------- | -------- | -| 1 | 100 | 98 | 98 | -| 2 | 100 | 99 | 99 | -| 3 | 100 | 100 | 100 | +| 1 | 100 | 98 | 98 | +| 2 | 100 | 99 | 99 | +| 3 | 100 | 100 | 100 | @@ -2251,21 +2251,21 @@ Returns value evaluated at the row that is offset rows before the current row wi * **offset** The number of rows forwarded from the current row, must not negative -Note: This function equals the `[at()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-at)` function. +Note: This function equals the `[at()](/openmldb_sql/Files/udfs_8h.md#function-at)` function. -The offset in window is `nth_value()`, not `[lag()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-lag)/at()`. The old `[at()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-at)`(version < 0.5.0) is start from the last row of window(may not be the current row), it's more like `nth_value()` +The offset in window is `nth_value()`, not `[lag()](/openmldb_sql/Files/udfs_8h.md#function-lag)/at()`. The old `[at()](/openmldb_sql/Files/udfs_8h.md#function-at)`(version < 0.5.0) is start from the last row of window(may not be the current row), it's more like `nth_value()` Example: -| c1 | c2 | +| c1 | c2 | | -------- | -------- | -| 0 | 1 | -| 1 | 1 | -| 2 | 2 | -| 3 | 2 | -| 4 | 2 | +| 0 | 1 | +| 1 | 1 | +| 2 | 2 | +| 3 | 2 | +| 4 | 2 | ```sql @@ -2653,13 +2653,13 @@ Compute maximum of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -2696,13 +2696,13 @@ Compute maximum of values grouped by category key and output string. Each group Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -2741,13 +2741,13 @@ Compute maximum of values matching specified condition grouped by category key a Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | ```sql @@ -2789,13 +2789,13 @@ Compute maximum of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -2861,12 +2861,12 @@ Compute the median of values. Example: -| value | +| value | | -------- | -| 1 | -| 2 | -| 3 | -| 4 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -2903,13 +2903,13 @@ Compute minimum of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -2946,13 +2946,13 @@ Compute minimum of values grouped by category key and output string. Each group Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -2991,14 +2991,14 @@ Compute minimum of values matching specified condition grouped by category key a Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 1 | true | y | -| 4 | true | x | -| 3 | true | y | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 1 | true | y | +| 4 | true | x | +| 3 | true | y | ```sql @@ -3040,13 +3040,13 @@ Compute minimum of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -3176,12 +3176,12 @@ select col1, cond, gp, nth_value_where(col1, 2, cond) over (partition by gp orde ``` -| col1 | cond | gp | agg | +| col1 | cond | gp | agg | | -------- | -------- | -------- | -------- | -| 1 | true | 100 | NULL | -| 2 | false | 100 | NULL | -| 3 | NULL | 100 | NULL | -| 4 | true | 100 | 4 | +| 1 | true | 100 | NULL | +| 2 | false | 100 | NULL | +| 3 | NULL | 100 | NULL | +| 4 | true | 100 | 4 | @@ -3568,7 +3568,7 @@ SELECT SIN(0); -* The value returned by [sin()](/openmldb_sql/functions_and_operators/Files/udfs_8h.md#function-sin) is always in the range: -1 to 1. +* The value returned by [sin()](/openmldb_sql/Files/udfs_8h.md#function-sin) is always in the range: -1 to 1. **Supported Types**: @@ -3810,12 +3810,12 @@ Alias function: `std`, `stddev_samp` Example: -| value | +| value | | -------- | -| 1 | -| 2 | -| 3 | -| 4 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -3852,12 +3852,12 @@ Compute population standard deviation of values, i.e., `sqrt( sum((x_i - avg)^2) Example: -| value | +| value | | -------- | -| 1 | -| 2 | -| 3 | -| 4 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -4013,13 +4013,13 @@ Compute sum of values. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -4053,13 +4053,13 @@ Compute sum of values grouped by category key and output string. Each group is r Example: -| value | catagory | +| value | catagory | | -------- | -------- | -| 0 | x | -| 1 | y | -| 2 | x | -| 3 | y | -| 4 | x | +| 0 | x | +| 1 | y | +| 2 | x | +| 3 | y | +| 4 | x | ```sql @@ -4098,13 +4098,13 @@ Compute sum of values matching specified condition grouped by category key and o Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | ```sql @@ -4146,13 +4146,13 @@ Compute sum of values match specified condition. Example: -| value | +| value | | -------- | -| 0 | -| 1 | -| 2 | -| 3 | -| 4 | +| 0 | +| 1 | +| 2 | +| 3 | +| 4 | ```sql @@ -4262,13 +4262,13 @@ Compute top k of values and output string separated by comma. The outputs are so Example: -| value | +| value | | -------- | -| 1 | -| 2 | -| 3 | -| 4 | -| 4 | +| 1 | +| 2 | +| 3 | +| 4 | +| 4 | ```sql @@ -4319,11 +4319,11 @@ SELECT key, top1_ratio(key) over () as ratio FROM t1; ``` -| key | ratio | +| key | ratio | | -------- | -------- | -| 1 | 1.0 | -| 2 | 0.5 | -| NULL | 0.5 | +| 1 | 1.0 | +| 2 | 0.5 | +| NULL | 0.5 | @@ -4360,15 +4360,15 @@ Compute average of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | -| 5 | true | z | -| 6 | false | z | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | +| 5 | true | z | +| 6 | false | z | ```sql @@ -4420,15 +4420,15 @@ Compute count of values matching specified condition grouped by category key. Ou Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | false | x | -| 3 | true | y | -| 4 | false | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | false | x | +| 3 | true | y | +| 4 | false | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4480,15 +4480,15 @@ Compute maximum of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | -| 5 | true | z | -| 6 | false | z | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | +| 5 | true | z | +| 6 | false | z | ```sql @@ -4540,15 +4540,15 @@ Compute minimum of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | false | x | -| 3 | true | y | -| 4 | false | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | false | x | +| 3 | true | y | +| 4 | false | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4602,15 +4602,15 @@ For each group, ratio value is `value` expr count matches condtion divide total Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 2 | true | x | -| 4 | true | x | -| 1 | true | y | -| 3 | false | y | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 2 | true | x | +| 4 | true | x | +| 1 | true | y | +| 3 | false | y | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4661,15 +4661,15 @@ Compute sum of values matching specified condition grouped by category key. Outp Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | false | x | -| 3 | true | y | -| 4 | false | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | false | x | +| 3 | true | y | +| 4 | false | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4721,15 +4721,15 @@ Compute average of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | false | y | -| 4 | true | x | -| 5 | true | z | -| 6 | false | z | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | false | y | +| 4 | true | x | +| 5 | true | z | +| 6 | false | z | ```sql @@ -4781,15 +4781,15 @@ Compute count of values matching specified condition grouped by category key. Ou Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | true | x | -| 3 | false | y | -| 4 | true | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | true | x | +| 3 | false | y | +| 4 | true | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4841,15 +4841,15 @@ Compute maximum of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | false | y | -| 2 | false | x | -| 3 | true | y | -| 4 | true | x | -| 5 | true | z | -| 6 | false | z | +| 0 | true | x | +| 1 | false | y | +| 2 | false | x | +| 3 | true | y | +| 4 | true | x | +| 5 | true | z | +| 6 | false | z | ```sql @@ -4901,15 +4901,15 @@ Compute minimum of values matching specified condition grouped by category key. Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | true | x | -| 3 | true | y | -| 4 | false | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | true | x | +| 3 | true | y | +| 4 | false | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -4963,15 +4963,15 @@ For each group, ratio value is `value` expr count matches condtion divide total Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 2 | true | x | -| 4 | true | x | -| 1 | true | y | -| 3 | false | y | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 2 | true | x | +| 4 | true | x | +| 1 | true | y | +| 3 | false | y | +| 5 | true | z | +| 6 | true | z | ```sql @@ -5022,15 +5022,15 @@ Compute sum of values matching specified condition grouped by category key. Outp Example: -| value | condition | catagory | +| value | condition | catagory | | -------- | -------- | -------- | -| 0 | true | x | -| 1 | true | y | -| 2 | false | x | -| 3 | false | y | -| 4 | true | x | -| 5 | true | z | -| 6 | true | z | +| 0 | true | x | +| 1 | true | y | +| 2 | false | x | +| 3 | false | y | +| 4 | true | x | +| 5 | true | z | +| 6 | true | z | ```sql @@ -5245,11 +5245,11 @@ Compute population variance of values, i.e., `sum((x_i - avg)^2) / n` Example: -| value | +| value | | -------- | -| 0 | -| 3 | -| 6 | +| 0 | +| 3 | +| 6 | ```sql @@ -5286,11 +5286,11 @@ Compute population variance of values, i.e., `sum((x_i - avg)^2) / (n-1)` Example: -| value | +| value | | -------- | -| 0 | -| 3 | -| 6 | +| 0 | +| 3 | +| 6 | ```sql diff --git a/docs/zh/quickstart/beginner_must_read.md b/docs/zh/quickstart/beginner_must_read.md index def0e3728d1..117ad6fedb7 100644 --- a/docs/zh/quickstart/beginner_must_read.md +++ b/docs/zh/quickstart/beginner_must_read.md @@ -1,6 +1,6 @@ # 上手必读 -由于OpenMLDB是分布式系统,多种模式,客户端丰富,初次使用可能会有很多疑问,或者遇到一些运行、使用问题,本文从新手使用的角度,讲解如何进行诊断调试,需求帮助时如何提供有效信息给技术人员等等。 +由于OpenMLDB是分布式系统,多种模式,客户端丰富,初次使用可能会有很多疑问,或者遇到一些运行、使用问题,本文从新手使用的角度,讲解如何进行诊断调试,需要帮助时如何提供有效信息给技术人员等等。 ## 错误诊断 @@ -22,7 +22,7 @@ openmldb_tool inspect [-c=0.0.0.0:2181/openmldb] docker创建OpenMLDB见[快速上手](./openmldb_quickstart.md),请注意文档中有两个版本,单机版和集群版。请清楚自己要创建哪个版本,不要混合使用。 -启动成功的标准是可以使用CLI连接上OpenMLDB服务端(即使用`/work/openmldb/bin/openmldb`连接OpenMLDB,单机或集群均可以通过CLI连接),并且执行`show components;`可以看到OpenMLDB服务端组件的运行情况。 +启动成功的标准是可以使用CLI连接上OpenMLDB服务端(即使用`/work/openmldb/bin/openmldb`连接OpenMLDB,单机或集群均可以通过CLI连接),并且执行`show components;`可以看到OpenMLDB服务端组件的运行情况。推荐使用[诊断工具](../maintain/diagnose.md),执行status和inspect,可以得到更可靠的诊断结果。 如果CLI无法连接OpenMLDB,请先确认进程是否运行正常,可以通过`ps f|grep bin/openmldb`确认nameserver和tabletserver进程,集群版还需要通过`ps f | grep zoo.cfg`来确认zk服务,`ps f | grep TaskManagerServer`来确认taskmanager进程。 @@ -32,6 +32,20 @@ docker创建OpenMLDB见[快速上手](./openmldb_quickstart.md),请注意文 如果我们还需要OpenMLDB服务端的配置和日志,可以使用诊断工具获取,见[下文](#提供配置与日志获得技术支持)。 ``` +### 运维 + +集群各组件进程启动后,在使用过程中可能遇到各种变化,比如服务进程意外退出,需要重启服务进程,或者需要扩容服务进程。 + +如果你需要保留已有的在线表,**不要主动地kill全部Tablet再重启**,保证Tablet只有单台在上下线。`stop-all.sh`和`start-all.sh`脚本是给快速重建集群用的,可能会导致在线表数据恢复失败,**不保证能修复**。 + +当你发现进程变化或者主动操作其变化后,需要使用诊断工具进行诊断,确认集群状态是否正常: +```bash +openmldb_tool inspect # 主要命令 +openmldb_tool status --diff hosts # 可检查TaskManager等是否掉线,当然,你也可以手动判断 +``` + +如果诊断出server offline,或是TaskManager等掉线,需要先启动回来。如果启动失败,请查看对应日志,提供错误信息。如果诊断结果提示需要recoverdata,请参考[OpenMLDB运维工具](../maintain/openmldb_ops.md)执行recoverdata。如果recoverdata脚本提示recover失败,或recover成功后再次inpsect的结果仍然不正常,请提供日志给我们。 + ## 源数据 ### LOAD DATA @@ -56,15 +70,51 @@ docker创建OpenMLDB见[快速上手](./openmldb_quickstart.md),请注意文 csv文件格式有诸多不便,更推荐使用parquet格式,需要OpenMLDB集群版并启动taskmanager组件。 ``` -## SQL限制 +## OpenMLDB SQL 开发和调试 OpenMLDB并不完全兼容标准SQL。所以,部分SQL执行会得不到预期结果。如果发现SQL执行不符合预期,请先查看下SQL是否满足[功能边界](./function_boundary.md)。 -## SQL执行 +为了方便使用 OpenMLDB SQL 进行开发、调试、验证,我们强烈推荐使用社区工具 [OpenMLDB SQL Emulator](https://github.com/vagetablechicken/OpenMLDBSQLEmulator) 来进行 SQL 模拟开发,可以节省大量的部署、编译、索引构建、任务运行等待时间,详见该项目 README https://github.com/vagetablechicken/OpenMLDBSQLEmulator + +### OpenMLDB SQL语法指南 + +基于 OpenMLDB SQL 的特征计算,一般比较常使用`WINDOW`(包括`WINDOW UNION`),`LAST JOIN` 等子句来完成计算逻辑,它们能保证在任何模式下使用。可以跟随教程"基于 SQL 的特征开发"[(上)](../tutorial/tutorial_sql_1.md)[(下)](../tutorial/tutorial_sql_2.md)进行学习。 + +如果使用`WHERE`,`WITH`,`HAVING`等子句,需要注意限制条件。在每个子句的详细文档中都有具体的说明,比如[`HAVING`子句](../openmldb_sql/dql/HAVING_CLAUSE.md)在在线请求模式中不支持。翻阅OpenMLDB SQL的DQL目录,或使用搜索功能,可以快速找到子句的详细文档。 + +在不熟悉OpenMLDB SQL的情况下,我们建议从子句开始编写SQL,确保每个子句都能通过,再逐步组合成完整的SQL。 + +推荐使用[OpenMLDB SQL Emulator](https://github.com/vagetablechicken/OpenMLDBSQLEmulator)进行SQL探索和验证,SQL验证完成后再去真实集群进行上线,可以避免浪费大量时间在索引构建、数据导入、任务等待等过程上。 Emulator 可以不依赖真实OpenMLDB集群,在一个交互式虚拟环境中,快速创建表、校验SQL、导出当前环境等等,详情参考该项目的 README 。使用 Emulator 不需要操作集群,也就不需要测试后清理集群,还可通过少量的数据进行SQL运行测试,比较适合SQL探索时期。 + +### OpenMLDB SQL 语法错误提示 + +当发现SQL编译报错时,需要查看错误信息。例如`Syntax error: Expected XXX but got keyword YYY`错误,它说明SQL不符合语法,通常是某些关键字写错了位置,或并没有这种写法。详情需要查询错误的子句文档,可注意子句的`Syntax`章节,它详细说明了每个部分的组成,请检查SQL是否符合要求。 + +比如,[`WINDOW`子句](../openmldb_sql/dql/WINDOW_CLAUSE.md#syntax)中`WindowFrameClause (WindowAttribute)*`部分,我们再拆解它就是`WindowFrameUnits WindowFrameBounds [WindowFrameMaxSize] (WindowAttribute)*`。那么,`WindowFrameUnits WindowFrameBounds MAXSIZE 10 EXCLUDE CURRENT_TIME`就是符合语法的,`WindowFrameUnits WindowFrameBounds EXCLUDE CURRENT_TIME MAXSIZE 10`就是不符合语法的,不能把`WindowFrameMaxSize`放到`WindowFrameClause`外面。 -OpenMLDB所有命令均为SQL,如果SQL执行失败或交互有问题(不知道命令是否执行成功),请先确认SQL书写是否有误,命令并未执行,还是命令进入了执行阶段。 +### OpenMLDB SQL 计算正确性调试 -例如,下面提示Syntax error的是SQL书写有误,请参考[sql reference](../../openmldb_sql/)纠正错误。 +SQL编译通过以后,可以基于数据进行计算。如果计算结果不符合预期,请逐步检查: +- SQL无论是一列还是多列计算结果不符合预期,建议都请选择**其中一列**进行调试。 +- 如果你的表数据较多,建议使用小数据量(几行,几十行的量级)来测试,也可以使用OpenMLDB SQL Emulator的[运行toydb](https://github.com/vagetablechicken/OpenMLDBSQLEmulator#run-in-toydb)功能,构造case进行测试。 +- 该列是不是表示了自己想表达的意思,是否使用了不符合预期的函数,或者函数参数错误。 +- 该列如果是窗口聚合的结果,是不是WINDOW定义错误,导致窗口范围不对。参考[推断窗口](../openmldb_sql/dql/WINDOW_CLAUSE.md#如何推断窗口是什么样的)进行检查,使用小数据进行验证测试。 + +如果你仍然无法解决问题,可以提供 OpenMLDB SQL Emulator 的 yaml case 。如果在集群中进行的测试,请[提供复现脚本](#提供复现脚本)。 + +### 在线请求模式测试 + +SQL上线,等价于`DEPLOY `成功。但`DEPLOY`操作是一个很“重”的操作,SQL如果可以上线,将会创建或修改索引并复制数据到新索引。所以,在SQL探索期使用`DEPLOY`测试SQL是否能上线,是比较浪费资源的,尤其是某些SQL可能需要多次修改才能上线,多次的`DEPLOY`可能产生很多无用的索引。在探索期间,可能还会修改表Schema,又需要删除和再创建。这些操作都是只能手动处理,比较繁琐。 + +如果你对OpenMLDB SQL较熟悉,一些场景下可以用“在线预览模式”进行测试,但“在线预览模式”不等于“在线请求模式”,不能保证一定可以上线。如果你对索引较为熟悉,可以通过`EXPLAIN `来确认SQL是否可以上线,但`EXPLAIN`的检查较为严格,可能因为当前表没有匹配的索引,而判定SQL无法在“在线请求模式”中执行(因为无索引而无法保证实时性能,所以被拒绝)。 + +目前只有Java SDK可以使用[validateSQLInRequest](./sdk/java_sdk.md#sql-校验)方法来检验,使用上稍麻烦。我们推荐使用 OpenMLDB SQL Emulator 来测试。在 Emulator 中,通过简单语法创建表,再使用`valreq `可以判断是否能上线。 + +## OpenMLDB SQL 执行 + +OpenMLDB 所有命令均为 SQL,如果 SQL 执行失败或交互有问题(不知道命令是否执行成功),请先确认 SQL 书写是否有误,命令并未执行,还是命令进入了执行阶段。 + +例如,下面提示Syntax error的是SQL书写有误,请参考[SQL编写指南](#sql编写指南)纠正错误。 ``` 127.0.0.1:7527/db> create table t1(c1 int; Error: Syntax error: Expected ")" or "," but got ";" [at 1:23] @@ -79,9 +129,7 @@ create table t1(c1 int; 我们需要特别注意集群版的一些使用逻辑。 -### 集群版SQL执行 - -#### 离线 +### 集群版离线 SQL 执行注意事项 如果是集群离线命令,默认异步模式下,发送命令会得到job id的返回。可使用`show job `来查询job执行情况。 @@ -95,13 +143,13 @@ create table t1(c1 int; 如果你无法通过show joblog获得日志,或者想要直接拿到日志文件,可以直接在TaskManager机器上获取。日志地址由taskmanager.properties的`job.log.path`配置,如果你改变了此配置项,需要到配置的目录中寻找日志。stdout查询结果默认在`/work/openmldb/taskmanager/bin/logs/job_x.log`,stderr job运行日志默认在`/work/openmldb/taskmanager/bin/logs/job_x_error.log`(注意有error后缀)。 ``` -#### 在线 +### 集群版在线 SQL 执行注意事项 -集群版在线模式下,我们通常只推荐使用`DEPLOY`创建deployment,HTTP访问APIServer执行deployment做实时特征计算。在CLI或其他客户端中,直接在在线中进行SELECT查询,称为“在线预览”。在线预览有诸多限制,详情请参考[功能边界-集群版在线预览模式](../function_boundary.md#集群版在线预览模式),请不要执行不支持的SQL。 +集群版在线模式下,我们通常只推荐两种使用,`DEPLOY`创建deployment,执行deployment做实时特征计算(SDK请求deployment,或HTTP访问APIServer请求deployment)。在CLI或其他客户端中,可以直接在“在线”中进行SELECT查询,称为“在线预览”。在线预览有诸多限制,详情请参考[功能边界-集群版在线预览模式](./function_boundary.md#集群版在线预览模式),请不要执行不支持的SQL。 -### 提供复现脚本 +### 构造 OpenMLDB SQL 复现脚本 -如果你通过自主诊断,无法解决问题,请向我们提供复现脚本。一个完整的复现脚本,如下所示: +如果你的 SQL 执行不符合预期,通过自主诊断,无法解决问题,请向我们提供复现脚本。一个完整的复现脚本。仅涉及在线SQL计算或校验SQL,推荐使用[OpenMLDB SQL Emulator](https://github.com/vagetablechicken/OpenMLDBSQLEmulator#run-in-toydb) 构造可复现的 yaml case。如果涉及到数据导入等必须使用 OpenMLDB集群,请提供可复现脚本,其结构如下所示: ``` create database db; @@ -134,7 +182,7 @@ set @@execute_mode=''; 请注意离线job默认为异步。如果你需要离线导入再查询,请设置为同步模式,详情见[离线命令配置详情](../openmldb_sql/ddl/SET_STATEMENT.md#离线命令配置详情)。否则导入还未完成就进行查询,是无意义的。 ``` -## 提供配置与日志,获得技术支持 +### 提供配置与日志,获得技术支持 如果你的SQL执行问题无法通过复现脚本复现,或者并非SQL执行问题而是集群管理问题,那么请提供客户端和服务端的配置与日志,以便我们调查。 @@ -151,3 +199,11 @@ openmldb_tool --env=onebox --dist_conf=standalone_dist.yml 如果是分布式的集群,需要配置ssh免密才能顺利使用诊断工具,参考文档[诊断工具](../maintain/diagnose.md)。 如果你的环境无法做到,请手动获取配置与日志。 + +## 性能统计 + +deployment耗时统计需要开启: +``` +SET GLOBAL deploy_stats = 'on'; +``` +开启后的Deployment执行都将被统计,之前的不会被统计,表中的数据不包含集群外部的网络耗时,仅统计deployment在server端从开始执行到结束的时间。 diff --git a/docs/zh/tutorial/index.rst b/docs/zh/tutorial/index.rst index cce68996ded..7406fda41a9 100644 --- a/docs/zh/tutorial/index.rst +++ b/docs/zh/tutorial/index.rst @@ -9,7 +9,6 @@ data_import_guide tutorial_sql_1 tutorial_sql_2 - modes openmldbspark_distribution data_import data_export diff --git a/hybridse/tools/documentation/udf_doxygen/Makefile b/hybridse/tools/documentation/udf_doxygen/Makefile index b58a1c70aeb..d3e8a344ba2 100644 --- a/hybridse/tools/documentation/udf_doxygen/Makefile +++ b/hybridse/tools/documentation/udf_doxygen/Makefile @@ -27,8 +27,8 @@ doxygen2md: doxygen sync: doxygen2md @if [ -n "$(SYNC_DIR)" ]; then \ - cp -v "$(UDF_GEN_DIR)/Files/udfs_8h.md" "$(SYNC_DIR)/docs/en/reference/sql/functions_and_operators/Files/udfs_8h.md"; \ - cp -v "$(UDF_GEN_DIR)/Files/udfs_8h.md" "$(SYNC_DIR)/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md"; \ + cp -v "$(UDF_GEN_DIR)/Files/udfs_8h.md" "$(SYNC_DIR)/docs/en/reference/sql/udfs_8h.md"; \ + cp -v "$(UDF_GEN_DIR)/Files/udfs_8h.md" "$(SYNC_DIR)/docs/zh/openmldb_sql/udfs_8h.md"; \ else \ echo "SKIP SYNC: DEFAULT Sync DIR not found"; \ fi diff --git a/hybridse/tools/documentation/udf_doxygen/README.md b/hybridse/tools/documentation/udf_doxygen/README.md index b911d067d84..33a74c5c84d 100644 --- a/hybridse/tools/documentation/udf_doxygen/README.md +++ b/hybridse/tools/documentation/udf_doxygen/README.md @@ -67,7 +67,7 @@ will output `udf_doxygen/udfgen`. ### 3. Put the document into proper position ```bash -cp udfgen/Files/udfs_8h.md ${project_root}/docs/zh/openmldb_sql/functions_and_operators/Files/udfs_8h.md +cp udfgen/Files/udfs_8h.md ${project_root}/docs/zh/openmldb_sql/udfs_8h.md ``` You may checkout changes manully and discard anything unnecessary like header. diff --git a/hybridse/tools/documentation/udf_doxygen/config.json b/hybridse/tools/documentation/udf_doxygen/config.json index 20d5297ab19..11e2451d1cf 100644 --- a/hybridse/tools/documentation/udf_doxygen/config.json +++ b/hybridse/tools/documentation/udf_doxygen/config.json @@ -1,5 +1,5 @@ { - "baseUrl": "/openmldb_sql/functions_and_operators/", + "baseUrl": "/openmldb_sql/", "indexInFolders": true, "linkSuffix": ".md", "linkLowercase": false, From 9e03d532cf94d828167ae2e1d63c454f52c35d03 Mon Sep 17 00:00:00 2001 From: dl239 Date: Fri, 10 Nov 2023 16:46:54 +0800 Subject: [PATCH 089/111] feat: update the default mode of deploy tool (#3512) --- release/conf/openmldb-env.sh | 2 +- test/test-tool/openmldb-deploy/install.sh | 1 - test/test-tool/openmldb-deploy/install_with_name.sh | 1 - 3 files changed, 1 insertion(+), 3 deletions(-) diff --git a/release/conf/openmldb-env.sh b/release/conf/openmldb-env.sh index c86d84aebd1..4190c24a7b1 100644 --- a/release/conf/openmldb-env.sh +++ b/release/conf/openmldb-env.sh @@ -1,7 +1,7 @@ #! /usr/bin/env bash export OPENMLDB_VERSION=0.8.3 # openmldb mode: standalone / cluster -export OPENMLDB_MODE=${OPENMLDB_MODE:=standalone} +export OPENMLDB_MODE=${OPENMLDB_MODE:=cluster} # tablet port export OPENMLDB_TABLET_PORT=10921 # nameserver port diff --git a/test/test-tool/openmldb-deploy/install.sh b/test/test-tool/openmldb-deploy/install.sh index e0238b2d530..a75cc21fec1 100644 --- a/test/test-tool/openmldb-deploy/install.sh +++ b/test/test-tool/openmldb-deploy/install.sh @@ -32,7 +32,6 @@ cp -f ../release/bin/*.sh bin/ mv ../hosts conf/hosts sed -i"" -e "s/OPENMLDB_VERSION=[0-9]\.[0-9]\.[0-9]/OPENMLDB_VERSION=${VERSION}/g" conf/openmldb-env.sh -sed -i"" -e "s/OPENMLDB_MODE:=standalone/OPENMLDB_MODE:=cluster/g" conf/openmldb-env.sh sed -i"" -e "s/CLEAR_OPENMLDB_INSTALL_DIR=false/CLEAR_OPENMLDB_INSTALL_DIR=true/g" conf/openmldb-env.sh sh sbin/stop-all.sh sh sbin/clear-all.sh diff --git a/test/test-tool/openmldb-deploy/install_with_name.sh b/test/test-tool/openmldb-deploy/install_with_name.sh index 6ce1851f103..a1525767a36 100644 --- a/test/test-tool/openmldb-deploy/install_with_name.sh +++ b/test/test-tool/openmldb-deploy/install_with_name.sh @@ -32,7 +32,6 @@ rm -f bin/*.sh /bin/cp -f ../test/test-tool/openmldb-deploy/hosts conf/hosts sed -i"" -e "s/OPENMLDB_VERSION=[0-9]\.[0-9]\.[0-9]/OPENMLDB_VERSION=${VERSION}/g" conf/openmldb-env.sh -sed -i"" -e "s/OPENMLDB_MODE:=standalone/OPENMLDB_MODE:=cluster/g" conf/openmldb-env.sh sh sbin/deploy-all.sh for (( i=0; i<=2; i++ )) From 354bcda11ceeb2910d920c8d6c2c60a526958372 Mon Sep 17 00:00:00 2001 From: dl239 Date: Tue, 14 Nov 2023 11:17:02 +0800 Subject: [PATCH 090/111] fix: fix deploy (#3503) --- src/client/ns_client.cc | 12 ++++++++++-- src/client/ns_client.h | 3 +++ src/sdk/sql_cluster_router.cc | 4 ++-- src/sdk/sql_cluster_test.cc | 34 ++++++++++++++++++++++++++++++++++ 4 files changed, 49 insertions(+), 4 deletions(-) diff --git a/src/client/ns_client.cc b/src/client/ns_client.cc index eb37aa2719f..1475d634bd0 100644 --- a/src/client/ns_client.cc +++ b/src/client/ns_client.cc @@ -612,10 +612,19 @@ bool NsClient::UpdateTableAliveStatus(const std::string& endpoint, std::string& bool NsClient::UpdateTTL(const std::string& name, const ::openmldb::type::TTLType& type, uint64_t abs_ttl, uint64_t lat_ttl, const std::string& index_name, std::string& msg) { + return UpdateTTL(GetDb(), name, type, abs_ttl, lat_ttl, index_name, msg); +} + +bool NsClient::UpdateTTL(const std::string& db, const std::string& name, const ::openmldb::type::TTLType& type, + uint64_t abs_ttl, uint64_t lat_ttl, const std::string& index_name, std::string& msg) { ::openmldb::nameserver::UpdateTTLRequest request; ::openmldb::nameserver::UpdateTTLResponse response; request.set_name(name); - request.set_db(GetDb()); + if (db.empty()) { + request.set_db(GetDb()); + } else { + request.set_db(db); + } ::openmldb::common::TTLSt* ttl_desc = request.mutable_ttl_desc(); ttl_desc->set_ttl_type(type); ttl_desc->set_abs_ttl(abs_ttl); @@ -623,7 +632,6 @@ bool NsClient::UpdateTTL(const std::string& name, const ::openmldb::type::TTLTyp if (!index_name.empty()) { request.set_index_name(index_name); } - request.set_db(GetDb()); bool ok = client_.SendRequest(&::openmldb::nameserver::NameServer_Stub::UpdateTTL, &request, &response, FLAGS_request_timeout_ms, 1); msg = response.msg(); diff --git a/src/client/ns_client.h b/src/client/ns_client.h index f069ccce2d3..503885dce48 100644 --- a/src/client/ns_client.h +++ b/src/client/ns_client.h @@ -193,6 +193,9 @@ class NsClient : public Client { bool UpdateTTL(const std::string& name, const ::openmldb::type::TTLType& type, uint64_t abs_ttl, uint64_t lat_ttl, const std::string& ts_name, std::string& msg); // NOLINT + bool UpdateTTL(const std::string& db, const std::string& name, const ::openmldb::type::TTLType& type, + uint64_t abs_ttl, uint64_t lat_ttl, const std::string& ts_name, std::string& msg); // NOLINT + bool AddReplicaClusterByNs(const std::string& alias, const std::string& name, uint64_t term, std::string& msg); // NOLINT diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 90054f277aa..707338a6a6c 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -3798,8 +3798,8 @@ hybridse::sdk::Status SQLClusterRouter::GetNewIndex(const TableInfoMap& table_ma // update ttl auto ns_ptr = cluster_sdk_->GetNsClient(); std::string err; - if (!ns_ptr->UpdateTTL(table_name, result.ttl_type(), result.abs_ttl(), result.lat_ttl(), - old_column_key.index_name(), err)) { + if (!ns_ptr->UpdateTTL(db_name, table_name, result.ttl_type(), + result.abs_ttl(), result.lat_ttl(), old_column_key.index_name(), err)) { return {StatusCode::kCmdError, "update ttl failed"}; } } diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index 70b6f7a20f2..8ad9dd2e128 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -646,6 +646,40 @@ TEST_F(SQLSDKQueryTest, GetTabletClient) { ASSERT_TRUE(router->DropDB(db, &status)); } +TEST_F(SQLClusterTest, DeployWithMultiDB) { + SQLRouterOptions sql_opt; + sql_opt.zk_cluster = mc_->GetZkCluster(); + sql_opt.zk_path = mc_->GetZkPath(); + auto router = NewClusterSQLRouter(sql_opt); + SetOnlineMode(router); + ASSERT_TRUE(router != nullptr); + std::string base_table = "test" + GenRand(); + std::string db1 = "db1"; + std::string db2 = "db2"; + ::hybridse::sdk::Status status; + ASSERT_TRUE(router->ExecuteDDL(db1, "drop table if exists db1.t1;", &status)); + ASSERT_TRUE(router->ExecuteDDL(db2, "drop table if exists db2.t1;", &status)); + ASSERT_TRUE(router->ExecuteDDL(db1, "drop database if exists db1;", &status)); + ASSERT_TRUE(router->ExecuteDDL(db2, "drop database if exists db2;", &status)); + ASSERT_TRUE(router->CreateDB(db1, &status)); + ASSERT_TRUE(router->CreateDB(db2, &status)); + std::string sql1 = "create table db1.t1 (c1 string, c2 int, c3 bigint, c4 timestamp, index(key=c1, ts=c4));"; + std::string sql2 = "create table db2.t1 (c1 string, c2 int, c3 bigint, c4 timestamp, index(key=c1, ts=c3));"; + ASSERT_TRUE(router->ExecuteDDL(db1, sql1, &status)); + ASSERT_TRUE(router->ExecuteDDL(db2, sql2, &status)); + ASSERT_TRUE(router->ExecuteDDL(db1, "use " + db1 + ";", &status)); + std::string sql = "deploy demo select db1.t1.c1,db1.t1.c2,db2.t1.c3,db2.t1.c4 from db1.t1 " + "last join db2.t1 ORDER BY db2.t1.c3 on db1.t1.c1=db2.t1.c1;"; + ASSERT_TRUE(router->RefreshCatalog()); + router->ExecuteSQL(sql, &status); + ASSERT_TRUE(status.IsOK()); + ASSERT_TRUE(router->ExecuteDDL(db1, "drop deployment demo;", &status)); + ASSERT_TRUE(router->ExecuteDDL(db1, "drop table t1;", &status)); + ASSERT_TRUE(router->ExecuteDDL(db2, "drop table t1;", &status)); + ASSERT_TRUE(router->DropDB(db1, &status)); + ASSERT_TRUE(router->DropDB(db2, &status)); +} + TEST_F(SQLClusterTest, CreatePreAggrTable) { SQLRouterOptions sql_opt; sql_opt.zk_cluster = mc_->GetZkCluster(); From 9401a5eddbae4689107f63bb9fbf9ae24c2675b1 Mon Sep 17 00:00:00 2001 From: dl239 Date: Tue, 14 Nov 2023 15:25:47 +0800 Subject: [PATCH 091/111] feat: support delete(aggregator) (#3327) --- src/storage/aggregator.cc | 309 ++++++++++++++++------ src/storage/aggregator.h | 74 +++--- src/storage/aggregator_test.cc | 47 ++-- src/storage/disk_table.cc | 26 +- src/storage/disk_table.h | 3 + src/storage/mem_table.cc | 66 +++-- src/storage/mem_table.h | 2 + src/storage/table.h | 3 + src/tablet/combine_iterator.h | 10 +- src/tablet/tablet_impl.cc | 124 ++++++--- src/tablet/tablet_impl_test.cc | 461 +++++++++++++++++++++++++-------- 11 files changed, 797 insertions(+), 328 deletions(-) diff --git a/src/storage/aggregator.cc b/src/storage/aggregator.cc index c57ff5103cb..7814c687be5 100644 --- a/src/storage/aggregator.cc +++ b/src/storage/aggregator.cc @@ -54,11 +54,13 @@ std::string AggrStatToString(AggrStat type) { return output; } -Aggregator::Aggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr

    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size) +Aggregator::Aggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size) : base_table_schema_(base_meta.column_desc()), + base_table_(base_table), aggr_table_schema_(aggr_meta.column_desc()), aggr_table_(aggr_table), aggr_replicator_(aggr_replicator), @@ -104,19 +106,11 @@ bool Aggregator::Update(const std::string& key, const std::string& row, uint64_t } auto row_ptr = reinterpret_cast(row.c_str()); int64_t cur_ts = 0; - switch (ts_col_type_) { - case DataType::kBigInt: { - base_row_view_.GetValue(row_ptr, ts_col_idx_, DataType::kBigInt, &cur_ts); - break; - } - case DataType::kTimestamp: { - base_row_view_.GetValue(row_ptr, ts_col_idx_, DataType::kTimestamp, &cur_ts); - break; - } - default: { - PDLOG(ERROR, "Unsupported timestamp data type"); - return false; - } + if (ts_col_type_ == DataType::kBigInt || ts_col_type_ == DataType::kTimestamp) { + base_row_view_.GetValue(row_ptr, ts_col_idx_, ts_col_type_, &cur_ts); + } else { + PDLOG(ERROR, "Unsupported timestamp data type"); + return false; } std::string filter_key = ""; if (filter_col_idx_ != -1) { @@ -213,8 +207,9 @@ bool Aggregator::Update(const std::string& key, const std::string& row, uint64_t return true; } -bool Aggregator::Delete(const std::string& key) { - { +bool Aggregator::DeleteData(const std::string& key, const std::optional& start_ts, + const std::optional& end_ts) { + if (!start_ts.has_value() && !end_ts.has_value()) { std::lock_guard lock(mu_); // erase from the aggr_buffer_map_ aggr_buffer_map_.erase(key); @@ -225,23 +220,181 @@ bool Aggregator::Delete(const std::string& key) { auto dimension = entry.add_dimensions(); dimension->set_key(key); dimension->set_idx(aggr_index_pos_); - + if (start_ts.has_value()) { + entry.set_ts(start_ts.value()); + } + if (end_ts.has_value()) { + entry.set_end_ts(end_ts.value()); + } // delete the entries from the pre-aggr table - bool ok = aggr_table_->Delete(entry); - if (!ok) { - PDLOG(ERROR, "Delete key %s from aggr table %s failed", key, aggr_table_->GetName()); + if (!aggr_table_->Delete(entry)) { + PDLOG(ERROR, "Delete key %s from aggr table %s failed", key.c_str(), aggr_table_->GetName().c_str()); return false; } - - ok = aggr_replicator_->AppendEntry(entry); - if (!ok) { - PDLOG(ERROR, "Add Delete entry to binlog failed: key %s, aggr table %s", key, aggr_table_->GetName()); + if (!aggr_replicator_->AppendEntry(entry)) { + PDLOG(ERROR, "Add Delete entry to binlog failed: key %s, aggr table %s", + key.c_str(), aggr_table_->GetName().c_str()); return false; } if (FLAGS_binlog_notify_on_put) { aggr_replicator_->Notify(); } + return true; +} +bool Aggregator::Delete(const std::string& key, const std::optional& start_ts, + const std::optional& end_ts) { + if (!start_ts.has_value() && !end_ts.has_value()) { + return DeleteData(key, start_ts, end_ts); + } + uint64_t real_start_ts = start_ts.has_value() ? start_ts.value() : UINT64_MAX; + std::vector aggr_buffer_lock_vec; + { + std::lock_guard lock(mu_); + if (auto it = aggr_buffer_map_.find(key); it != aggr_buffer_map_.end()) { + for (auto& kv : it->second) { + auto& buffer = kv.second.buffer_; + if (buffer.IsInited() && real_start_ts >= static_cast(buffer.ts_begin_) && + (!end_ts.has_value() || end_ts.value() < static_cast(buffer.ts_end_))) { + aggr_buffer_lock_vec.push_back(&kv.second); + } + } + } + } + for (auto agg_buffer_lock : aggr_buffer_lock_vec) { + RebuildAggrBuffer(key, &agg_buffer_lock->buffer_); + } + ::openmldb::storage::Ticket ticket; + std::unique_ptr it(aggr_table_->NewIterator(0, key, ticket)); + if (it == nullptr) { + return false; + } + if (window_type_ == WindowType::kRowsRange && UINT64_MAX - window_size_ > real_start_ts) { + it->Seek(real_start_ts + window_size_); + } else { + it->SeekToFirst(); + } + std::optional delete_start_ts = std::nullopt; + std::optional delete_end_ts = std::nullopt; + bool is_first_block = true; + while (it->Valid()) { + uint64_t buffer_start_ts = it->GetKey(); + uint64_t buffer_end_ts = 0; + auto aggr_row_ptr = reinterpret_cast(it->GetValue().data()); + aggr_row_view_.GetValue(aggr_row_ptr, 2, DataType::kTimestamp, &buffer_end_ts); + if (is_first_block) { + is_first_block = false; + if (!end_ts.has_value() || end_ts.value() < buffer_end_ts) { + real_start_ts = std::min(buffer_end_ts, real_start_ts); + } + } + if (real_start_ts <= buffer_end_ts) { + if (end_ts.has_value()) { + delete_end_ts = buffer_start_ts; + } + if (real_start_ts >= buffer_start_ts) { + RebuildFlushedAggrBuffer(key, aggr_row_ptr); + // start delete from next block + delete_start_ts = buffer_start_ts > 0 ? buffer_start_ts - 1 : 0; + if (end_ts.has_value()) { + if (end_ts.value() >= buffer_start_ts) { + // range data in one aggregate buffer + return true; + } + } else { + break; + } + it->Next(); + continue; + } + } + if (end_ts.has_value()) { + if (end_ts.value() >= buffer_end_ts) { + break; + } else { + delete_end_ts = buffer_start_ts > 0 ? buffer_start_ts - 1 : 0; + if (end_ts.value() >= buffer_start_ts) { + // end delete with last block + delete_end_ts = buffer_end_ts; + if (delete_start_ts.has_value() && delete_start_ts.value() <= buffer_end_ts) { + // two adjacent blocks, no delete + delete_start_ts.reset(); + delete_end_ts.reset(); + } + RebuildFlushedAggrBuffer(key, aggr_row_ptr); + break; + } + } + } + it->Next(); + } + if (delete_start_ts.has_value() || delete_end_ts.has_value()) { + if (delete_start_ts.has_value() && delete_end_ts.has_value() && + delete_start_ts.value() <= delete_end_ts.value()) { + return true; + } + return DeleteData(key, delete_start_ts, delete_end_ts); + } + return true; +} + +bool Aggregator::RebuildFlushedAggrBuffer(const std::string& key, const int8_t* row_ptr) { + DLOG(INFO) << "RebuildFlushedAggrBuffer. key is " << key; + AggrBuffer buffer; + if (!GetAggrBufferFromRowView(aggr_row_view_, row_ptr, &buffer)) { + PDLOG(WARNING, "GetAggrBufferFromRowView failed"); + return false; + } + if (!RebuildAggrBuffer(key, &buffer)) { + PDLOG(WARNING, "RebuildAggrBuffer failed. key is %s", key.c_str()); + return false; + } + std::string filter_key; + if (!aggr_row_view_.IsNULL(row_ptr, 6)) { + char* ch = nullptr; + uint32_t len = 0; + aggr_row_view_.GetValue(row_ptr, 6, &ch, &len); + filter_key.assign(ch, len); + } + if (!FlushAggrBuffer(key, filter_key, buffer)) { + PDLOG(WARNING, "FlushAggrBuffer failed. key is %s", key.c_str()); + return false; + } + return true; +} + +bool Aggregator::RebuildAggrBuffer(const std::string& key, AggrBuffer* aggr_buffer) { + if (base_table_ == nullptr) { + PDLOG(WARNING, "base table is nullptr, cannot update MinAggr table"); + return false; + } + storage::Ticket ticket; + std::unique_ptr it(base_table_->NewIterator(GetIndexPos(), key, ticket)); + if (it == nullptr) { + return false; + } + int64_t ts_begin = aggr_buffer->ts_begin_; + int64_t ts_end = aggr_buffer->ts_end_; + uint64_t binlog_offset = aggr_buffer->binlog_offset_; + auto data_type = aggr_buffer->data_type_; + aggr_buffer->Clear(); + aggr_buffer->ts_begin_ = ts_begin; + aggr_buffer->ts_end_ = ts_end; + aggr_buffer->binlog_offset_ = binlog_offset; + aggr_buffer->data_type_ = data_type; + it->Seek(ts_end); + while (it->Valid()) { + if (it->GetKey() < static_cast(ts_begin)) { + break; + } + auto base_row_ptr = reinterpret_cast(it->GetValue().data()); + if (!UpdateAggrVal(base_row_view_, base_row_ptr, aggr_buffer)) { + PDLOG(WARNING, "Failed to update aggr Val during rebuilding Extermum aggr buffer"); + return false; + } + aggr_buffer->aggr_cnt_++; + it->Next(); + } return true; } @@ -270,12 +423,10 @@ bool Aggregator::FlushAll() { } bool Aggregator::Init(std::shared_ptr base_replicator) { - std::unique_lock lock(mu_); if (GetStat() != AggrStat::kUnInit) { - PDLOG(INFO, "aggregator status is %s", AggrStatToString(GetStat())); + PDLOG(INFO, "aggregator status is %s", AggrStatToString(GetStat()).c_str()); return true; } - lock.unlock(); if (!base_replicator) { return false; } @@ -372,7 +523,11 @@ bool Aggregator::Init(std::shared_ptr base_replicator) { for (const auto& dimension : entry.dimensions()) { if (dimension.idx() == index_pos_) { if (entry.has_method_type() && entry.method_type() == ::openmldb::api::MethodType::kDelete) { - Delete(dimension.key()); + std::optional start_ts = entry.has_ts() ? + std::optional(entry.ts()) : std::nullopt; + std::optional end_ts = entry.has_end_ts() ? + std::optional(entry.end_ts()) : std::nullopt; + Delete(dimension.key(), start_ts, end_ts); } else { Update(dimension.key(), entry.value(), entry.log_index(), true); } @@ -586,12 +741,13 @@ bool Aggregator::CheckBufferFilled(int64_t cur_ts, int64_t buffer_end, int32_t b return false; } -SumAggregator::SumAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size) - : Aggregator(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, aggr_type, ts_col, window_tpye, - window_size) {} +SumAggregator::SumAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size) + : Aggregator(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, index_pos, + aggr_col, aggr_type, ts_col, window_tpye, window_size) {} bool SumAggregator::UpdateAggrVal(const codec::RowView& row_view, const int8_t* row_ptr, AggrBuffer* aggr_buffer) { if (row_view.IsNULL(row_ptr, aggr_col_idx_)) { @@ -700,13 +856,14 @@ bool SumAggregator::DecodeAggrVal(const int8_t* row_ptr, AggrBuffer* buffer) { } MinMaxBaseAggregator::MinMaxBaseAggregator(const ::openmldb::api::TableMeta& base_meta, + std::shared_ptr
    base_table, const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, - std::shared_ptr aggr_replicator, const uint32_t& index_pos, + std::shared_ptr aggr_replicator, uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, const std::string& ts_col, WindowType window_tpye, uint32_t window_size) - : Aggregator(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, aggr_type, ts_col, window_tpye, - window_size) {} + : Aggregator(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, aggr_type, + ts_col, window_tpye, window_size) {} bool MinMaxBaseAggregator::EncodeAggrVal(const AggrBuffer& buffer, std::string* aggr_val) { switch (aggr_col_type_) { @@ -806,12 +963,13 @@ bool MinMaxBaseAggregator::DecodeAggrVal(const int8_t* row_ptr, AggrBuffer* buff return true; } -MinAggregator::MinAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size) - : MinMaxBaseAggregator(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, aggr_type, ts_col, - window_tpye, window_size) {} +MinAggregator::MinAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size) + : MinMaxBaseAggregator(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, index_pos, + aggr_col, aggr_type, ts_col, window_tpye, window_size) {} bool MinAggregator::UpdateAggrVal(const codec::RowView& row_view, const int8_t* row_ptr, AggrBuffer* aggr_buffer) { if (row_view.IsNULL(row_ptr, aggr_col_idx_)) { @@ -888,12 +1046,13 @@ bool MinAggregator::UpdateAggrVal(const codec::RowView& row_view, const int8_t* return true; } -MaxAggregator::MaxAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size) - : MinMaxBaseAggregator(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, aggr_type, ts_col, - window_tpye, window_size) {} +MaxAggregator::MaxAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size) + : MinMaxBaseAggregator(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, index_pos, + aggr_col, aggr_type, ts_col, window_tpye, window_size) {} bool MaxAggregator::UpdateAggrVal(const codec::RowView& row_view, const int8_t* row_ptr, AggrBuffer* aggr_buffer) { if (row_view.IsNULL(row_ptr, aggr_col_idx_)) { @@ -970,13 +1129,13 @@ bool MaxAggregator::UpdateAggrVal(const codec::RowView& row_view, const int8_t* return true; } -CountAggregator::CountAggregator(const ::openmldb::api::TableMeta& base_meta, +CountAggregator::CountAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, - std::shared_ptr aggr_replicator, const uint32_t& index_pos, + std::shared_ptr aggr_replicator, uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, const std::string& ts_col, WindowType window_tpye, uint32_t window_size) - : Aggregator(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, aggr_type, ts_col, window_tpye, - window_size) { + : Aggregator(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, aggr_type, + ts_col, window_tpye, window_size) { if (aggr_col == "*") { count_all = true; } @@ -1005,12 +1164,13 @@ bool CountAggregator::UpdateAggrVal(const codec::RowView& row_view, const int8_t return true; } -AvgAggregator::AvgAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size) - : Aggregator(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, aggr_type, ts_col, window_tpye, - window_size) {} +AvgAggregator::AvgAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size) + : Aggregator(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, index_pos, + aggr_col, aggr_type, ts_col, window_tpye, window_size) {} bool AvgAggregator::UpdateAggrVal(const codec::RowView& row_view, const int8_t* row_ptr, AggrBuffer* aggr_buffer) { if (row_view.IsNULL(row_ptr, aggr_col_idx_)) { @@ -1076,6 +1236,7 @@ bool AvgAggregator::DecodeAggrVal(const int8_t* row_ptr, AggrBuffer* buffer) { } std::shared_ptr CreateAggregator(const ::openmldb::api::TableMeta& base_meta, + std::shared_ptr
    base_table, const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, uint32_t index_pos, @@ -1123,20 +1284,20 @@ std::shared_ptr CreateAggregator(const ::openmldb::api::TableMeta& b std::shared_ptr agg; if (aggr_type == "sum" || aggr_type == "sum_where") { - agg = std::make_shared(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, - AggrType::kSum, ts_col, window_type, window_size); + agg = std::make_shared(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, + index_pos, aggr_col, AggrType::kSum, ts_col, window_type, window_size); } else if (aggr_type == "min" || aggr_type == "min_where") { - agg = std::make_shared(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, - AggrType::kMin, ts_col, window_type, window_size); + agg = std::make_shared(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, + index_pos, aggr_col, AggrType::kMin, ts_col, window_type, window_size); } else if (aggr_type == "max" || aggr_type == "max_where") { - agg = std::make_shared(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, - AggrType::kMax, ts_col, window_type, window_size); + agg = std::make_shared(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, + index_pos, aggr_col, AggrType::kMax, ts_col, window_type, window_size); } else if (aggr_type == "count" || aggr_type == "count_where") { - agg = std::make_shared(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, - AggrType::kCount, ts_col, window_type, window_size); + agg = std::make_shared(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, + index_pos, aggr_col, AggrType::kCount, ts_col, window_type, window_size); } else if (aggr_type == "avg" || aggr_type == "avg_where") { - agg = std::make_shared(base_meta, aggr_meta, aggr_table, aggr_replicator, index_pos, aggr_col, - AggrType::kAvg, ts_col, window_type, window_size); + agg = std::make_shared(base_meta, base_table, aggr_meta, aggr_table, aggr_replicator, + index_pos, aggr_col, AggrType::kAvg, ts_col, window_type, window_size); } else { PDLOG(ERROR, "Unsupported aggregate function type"); return {}; @@ -1149,11 +1310,11 @@ std::shared_ptr CreateAggregator(const ::openmldb::api::TableMeta& b // _where variant if (filter_col.empty()) { - PDLOG(ERROR, "no filter column specified for %s", aggr_type); + PDLOG(ERROR, "no filter column specified for %s", aggr_type.c_str()); return {}; } if (!agg->SetFilter(filter_col)) { - PDLOG(ERROR, "can not find filter column '%s' for %s", filter_col, aggr_type); + PDLOG(ERROR, "can not find filter column '%s' for %s", filter_col.c_str(), aggr_type.c_str()); return {}; } return agg; diff --git a/src/storage/aggregator.h b/src/storage/aggregator.h index f007ffc18e4..035b126518a 100644 --- a/src/storage/aggregator.h +++ b/src/storage/aggregator.h @@ -120,16 +120,17 @@ struct AggrBufferLocked { class Aggregator { public: - Aggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size); + Aggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size); ~Aggregator(); bool Update(const std::string& key, const std::string& row, uint64_t offset, bool recover = false); - bool Delete(const std::string& key); + bool Delete(const std::string& key, const std::optional& start_ts, const std::optional& end_ts); bool FlushAll(); @@ -158,13 +159,14 @@ class Aggregator { protected: codec::Schema base_table_schema_; - codec::Schema aggr_table_schema_; using FilterMap = absl::flat_hash_map; // filter_column -> aggregator buffer absl::flat_hash_map aggr_buffer_map_; // key -> filter_map std::mutex mu_; DataType aggr_col_type_; DataType ts_col_type_; + std::shared_ptr
    base_table_; + codec::Schema aggr_table_schema_; std::shared_ptr
    aggr_table_; std::shared_ptr aggr_replicator_; std::atomic status_; @@ -176,11 +178,16 @@ class Aggregator { bool CheckBufferFilled(int64_t cur_ts, int64_t buffer_end, int32_t buffer_cnt); private: + bool DeleteData(const std::string& key, const std::optional& start_ts, + const std::optional& end_ts); + virtual bool UpdateAggrVal(const codec::RowView& row_view, const int8_t* row_ptr, AggrBuffer* aggr_buffer) = 0; virtual bool EncodeAggrVal(const AggrBuffer& buffer, std::string* aggr_val) = 0; virtual bool DecodeAggrVal(const int8_t* row_ptr, AggrBuffer* buffer) = 0; bool EncodeAggrBuffer(const std::string& key, const std::string& filter_key, const AggrBuffer& buffer, const std::string& aggr_val, std::string* encoded_row); + bool RebuildAggrBuffer(const std::string& key, AggrBuffer* aggr_buffer); + bool RebuildFlushedAggrBuffer(const std::string& key, const int8_t* row_ptr); int64_t AlignedStart(int64_t ts) { if (window_type_ == WindowType::kRowsRange) { return ts / window_size_ * window_size_; @@ -213,10 +220,11 @@ class Aggregator { class SumAggregator : public Aggregator { public: - SumAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size); + SumAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size); ~SumAggregator() = default; @@ -230,10 +238,11 @@ class SumAggregator : public Aggregator { class MinMaxBaseAggregator : public Aggregator { public: - MinMaxBaseAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size); + MinMaxBaseAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size); ~MinMaxBaseAggregator() = default; @@ -244,10 +253,11 @@ class MinMaxBaseAggregator : public Aggregator { }; class MinAggregator : public MinMaxBaseAggregator { public: - MinAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size); + MinAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size); ~MinAggregator() = default; @@ -257,10 +267,11 @@ class MinAggregator : public MinMaxBaseAggregator { class MaxAggregator : public MinMaxBaseAggregator { public: - MaxAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size); + MaxAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size); ~MaxAggregator() = default; @@ -270,10 +281,11 @@ class MaxAggregator : public MinMaxBaseAggregator { class CountAggregator : public Aggregator { public: - CountAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size); + CountAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size); ~CountAggregator() = default; @@ -289,10 +301,11 @@ class CountAggregator : public Aggregator { class AvgAggregator : public Aggregator { public: - AvgAggregator(const ::openmldb::api::TableMeta& base_meta, const ::openmldb::api::TableMeta& aggr_meta, - std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, - const uint32_t& index_pos, const std::string& aggr_col, const AggrType& aggr_type, - const std::string& ts_col, WindowType window_tpye, uint32_t window_size); + AvgAggregator(const ::openmldb::api::TableMeta& base_meta, std::shared_ptr
    base_table, + const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, + std::shared_ptr aggr_replicator, + uint32_t index_pos, const std::string& aggr_col, const AggrType& aggr_type, + const std::string& ts_col, WindowType window_tpye, uint32_t window_size); ~AvgAggregator() = default; @@ -305,6 +318,7 @@ class AvgAggregator : public Aggregator { }; std::shared_ptr CreateAggregator(const ::openmldb::api::TableMeta& base_meta, + std::shared_ptr
    base_table, const ::openmldb::api::TableMeta& aggr_meta, std::shared_ptr
    aggr_table, std::shared_ptr aggr_replicator, uint32_t index_pos, diff --git a/src/storage/aggregator_test.cc b/src/storage/aggregator_test.cc index c64f70b9269..2fa9299c6f2 100644 --- a/src/storage/aggregator_test.cc +++ b/src/storage/aggregator_test.cc @@ -123,8 +123,8 @@ bool GetUpdatedResult(const uint32_t& id, const std::string& aggr_col, const std std::shared_ptr replicator = std::make_shared( aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); - auto aggr = CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, aggr_col, aggr_type, - "ts_col", bucket_size, "low_card"); + auto aggr = CreateAggregator(base_table_meta, table, aggr_table_meta, aggr_table, replicator, 0, + aggr_col, aggr_type, "ts_col", bucket_size, "low_card"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -319,7 +319,8 @@ void CheckCountWhereAggrResult(std::shared_ptr
    aggr_table, std::shared_pt TEST_F(AggregatorTest, CreateAggregator) { // rows_num window type std::map map; - std::string folder = "/tmp/" + GenRand() + "/"; + ::openmldb::test::TempPath tmp_path; + std::string folder = tmp_path.GetTempPath(); { uint32_t id = counter++; ::openmldb::api::TableMeta base_table_meta; @@ -334,8 +335,8 @@ TEST_F(AggregatorTest, CreateAggregator) { std::shared_ptr replicator = std::make_shared( aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); - auto aggr = CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "sum", - "ts_col", "1000"); + auto aggr = CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "sum", "ts_col", "1000"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -360,8 +361,8 @@ TEST_F(AggregatorTest, CreateAggregator) { std::shared_ptr replicator = std::make_shared( aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); - auto aggr = CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "sum", - "ts_col", "1d"); + auto aggr = CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "sum", "ts_col", "1d"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -385,8 +386,8 @@ TEST_F(AggregatorTest, CreateAggregator) { std::shared_ptr replicator = std::make_shared( aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); - auto aggr = CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "sum", - "ts_col", "2s"); + auto aggr = CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "sum", "ts_col", "2s"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -410,8 +411,8 @@ TEST_F(AggregatorTest, CreateAggregator) { std::shared_ptr replicator = std::make_shared( aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); - auto aggr = CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "sum", - "ts_col", "3m"); + auto aggr = CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "sum", "ts_col", "3m"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -435,8 +436,8 @@ TEST_F(AggregatorTest, CreateAggregator) { std::shared_ptr replicator = std::make_shared( aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); - auto aggr = CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "sum", - "ts_col", "100h"); + auto aggr = CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "sum", "ts_col", "100h"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -471,7 +472,8 @@ TEST_F(AggregatorTest, SumAggregatorUpdate) { aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); auto aggr = - CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "sum", "ts_col", "2"); + CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "sum", "ts_col", "2"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -739,7 +741,8 @@ TEST_F(AggregatorTest, OutOfOrder) { aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); auto aggr = - CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "sum", "ts_col", "1s"); + CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "sum", "ts_col", "1s"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -808,7 +811,8 @@ TEST_F(AggregatorTest, OutOfOrder) { TEST_F(AggregatorTest, OutOfOrderCountWhere) { std::map map; - std::string folder = "/tmp/" + GenRand() + "/"; + ::openmldb::test::TempPath tmp_path; + std::string folder = tmp_path.GetTempPath(); uint32_t id = counter++; ::openmldb::api::TableMeta base_table_meta; base_table_meta.set_tid(id); @@ -822,8 +826,8 @@ TEST_F(AggregatorTest, OutOfOrderCountWhere) { std::shared_ptr replicator = std::make_shared( aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); - auto aggr = CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "count_where", - "ts_col", "1s", "low_card"); + auto aggr = CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "count_where", "ts_col", "1s", "low_card"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); @@ -914,7 +918,8 @@ TEST_F(AggregatorTest, OutOfOrderCountWhere) { TEST_F(AggregatorTest, AlignedCountWhere) { std::map map; - std::string folder = "/tmp/" + GenRand() + "/"; + ::openmldb::test::TempPath tmp_path; + std::string folder = tmp_path.GetTempPath(); uint32_t id = counter++; ::openmldb::api::TableMeta base_table_meta; base_table_meta.set_tid(id); @@ -928,8 +933,8 @@ TEST_F(AggregatorTest, AlignedCountWhere) { std::shared_ptr replicator = std::make_shared( aggr_table->GetId(), aggr_table->GetPid(), folder, map, ::openmldb::replica::kLeaderNode); replicator->Init(); - auto aggr = CreateAggregator(base_table_meta, aggr_table_meta, aggr_table, replicator, 0, "col3", "count_where", - "ts_col", "1s", "low_card"); + auto aggr = CreateAggregator(base_table_meta, nullptr, aggr_table_meta, aggr_table, replicator, 0, + "col3", "count_where", "ts_col", "1s", "low_card"); std::shared_ptr base_replicator = std::make_shared( base_table_meta.tid(), base_table_meta.pid(), folder, map, ::openmldb::replica::kLeaderNode); base_replicator->Init(); diff --git a/src/storage/disk_table.cc b/src/storage/disk_table.cc index 8f508bac6c5..ca3abbf90e0 100644 --- a/src/storage/disk_table.cc +++ b/src/storage/disk_table.cc @@ -283,17 +283,14 @@ bool DiskTable::Put(uint64_t time, const std::string& value, const Dimensions& d } bool DiskTable::Delete(const ::openmldb::api::LogEntry& entry) { - uint64_t start_ts = entry.has_ts() ? entry.ts() : UINT64_MAX; + std::optional start_ts = entry.has_ts() ? std::optional(entry.ts()) : std::nullopt; std::optional end_ts = entry.has_end_ts() ? std::optional(entry.end_ts()) : std::nullopt; if (entry.dimensions_size() > 0) { for (const auto& dimension : entry.dimensions()) { - auto s = Delete(dimension.idx(), dimension.key(), start_ts, end_ts); - if (!s.OK()) { - DEBUGLOG("Delete failed. tid %u pid %u msg %s", id_, pid_, s.GetMsg().c_str()); + if (!Delete(dimension.idx(), dimension.key(), start_ts, end_ts)) { return false; } } - offset_.fetch_add(1, std::memory_order_relaxed); return true; } else { for (const auto& index : table_index_.GetAllIndex()) { @@ -316,12 +313,13 @@ bool DiskTable::Delete(const ::openmldb::api::LogEntry& entry) { return true; } -base::Status DiskTable::Delete(uint32_t idx, const std::string& pk, - uint64_t start_ts, const std::optional& end_ts) { +bool DiskTable::Delete(uint32_t idx, const std::string& pk, + const std::optional& start_ts, const std::optional& end_ts) { auto index_def = table_index_.GetIndex(idx); if (!index_def || !index_def->IsReady()) { - return {-1, "index not found"}; + return false; } + uint64_t real_start_ts = start_ts.has_value() ? start_ts.value() : UINT64_MAX; uint64_t real_end_ts = end_ts.has_value() ? end_ts.value() : 0; std::string combine_key1; std::string combine_key2; @@ -330,21 +328,23 @@ base::Status DiskTable::Delete(uint32_t idx, const std::string& pk, if (inner_index && inner_index->GetIndex().size() > 1) { auto ts_col = index_def->GetTsColumn(); if (!ts_col) { - return {-1, "ts column not found"}; + return false; } - combine_key1 = CombineKeyTs(pk, start_ts, ts_col->GetId()); + combine_key1 = CombineKeyTs(pk, real_start_ts, ts_col->GetId()); combine_key2 = CombineKeyTs(pk, real_end_ts, ts_col->GetId()); } else { - combine_key1 = CombineKeyTs(pk, start_ts); + combine_key1 = CombineKeyTs(pk, real_start_ts); combine_key2 = CombineKeyTs(pk, real_end_ts); } rocksdb::WriteBatch batch; batch.DeleteRange(cf_hs_[inner_pos + 1], rocksdb::Slice(combine_key1), rocksdb::Slice(combine_key2)); rocksdb::Status s = db_->Write(write_opts_, &batch); if (!s.ok()) { - return {-1, s.ToString()}; + DEBUGLOG("Delete failed. tid %u pid %u msg %s", id_, pid_, s.ToString().c_str()); + return false; } - return {}; + offset_.fetch_add(1, std::memory_order_relaxed); + return true; } bool DiskTable::Get(uint32_t idx, const std::string& pk, uint64_t ts, std::string& value) { diff --git a/src/storage/disk_table.h b/src/storage/disk_table.h index 20f25f9a7ae..8c2c5d3a71a 100644 --- a/src/storage/disk_table.h +++ b/src/storage/disk_table.h @@ -181,6 +181,9 @@ class DiskTable : public Table { bool Delete(const ::openmldb::api::LogEntry& entry) override; + bool Delete(uint32_t idx, const std::string& pk, + const std::optional& start_ts, const std::optional& end_ts) override; + uint64_t GetExpireTime(const TTLSt& ttl_st) override; uint64_t GetRecordCnt() override { diff --git a/src/storage/mem_table.cc b/src/storage/mem_table.cc index 8cbb145e323..83cded915a3 100644 --- a/src/storage/mem_table.cc +++ b/src/storage/mem_table.cc @@ -226,32 +226,15 @@ bool MemTable::Put(uint64_t time, const std::string& value, const Dimensions& di } bool MemTable::Delete(const ::openmldb::api::LogEntry& entry) { + std::optional start_ts = entry.has_ts() ? std::optional{entry.ts()} + : std::nullopt; + std::optional end_ts = entry.has_end_ts() ? std::optional{entry.end_ts()} + : std::nullopt; if (entry.dimensions_size() > 0) { for (const auto& dimension : entry.dimensions()) { - auto index_def = GetIndex(dimension.idx()); - if (!index_def || !index_def->IsReady()) { + if (!Delete(dimension.idx(), dimension.key(), start_ts, end_ts)) { return false; } - auto ts_col = index_def->GetTsColumn(); - std::optional ts_idx = ts_col ? std::optional{ts_col->GetId()} : std::nullopt; - Slice spk(dimension.key()); - uint32_t seg_idx = 0; - if (seg_cnt_ > 1) { - seg_idx = base::hash(spk.data(), spk.size(), SEED) % seg_cnt_; - } - uint32_t real_idx = index_def->GetInnerPos(); - if (entry.has_ts() || entry.has_end_ts()) { - uint64_t start_ts = entry.has_ts() ? entry.ts() : UINT64_MAX; - std::optional end_ts = entry.has_end_ts() ? std::optional{entry.end_ts()} - : std::nullopt; - if (!segments_[real_idx][seg_idx]->Delete(ts_idx, spk, start_ts, end_ts)) { - return false; - } - } else { - if (!segments_[real_idx][seg_idx]->Delete(ts_idx, spk)) { - return false; - } - } } return true; } else { @@ -259,37 +242,46 @@ bool MemTable::Delete(const ::openmldb::api::LogEntry& entry) { if (!index_def || !index_def->IsReady()) { continue; } - uint32_t real_idx = index_def->GetInnerPos(); auto ts_col = index_def->GetTsColumn(); if (!ts_col->IsAutoGenTs() && ts_col->GetName() != entry.ts_name()) { continue; } - std::optional ts_idx = ts_col ? std::optional{ts_col->GetId()} : std::nullopt; uint32_t idx = index_def->GetId(); std::unique_ptr iter(NewTraverseIterator(idx)); iter->SeekToFirst(); while (iter->Valid()) { auto pk = iter->GetPK(); iter->NextPK(); - Slice spk(pk); - uint32_t seg_idx = 0; - if (seg_cnt_ > 1) { - seg_idx = base::hash(spk.data(), spk.size(), SEED) % seg_cnt_; - } - if (entry.has_ts() || entry.has_end_ts()) { - uint64_t start_ts = entry.has_ts() ? entry.ts() : UINT64_MAX; - std::optional end_ts = entry.has_end_ts() ? std::optional{entry.end_ts()} - : std::nullopt; - segments_[real_idx][seg_idx]->Delete(ts_idx, spk, start_ts, end_ts); - } else { - segments_[real_idx][seg_idx]->Delete(ts_idx, spk); - } + Delete(idx, pk, start_ts, end_ts); } } } return true; } +bool MemTable::Delete(uint32_t idx, const std::string& key, + const std::optional& start_ts, const std::optional& end_ts) { + auto index_def = GetIndex(idx); + if (!index_def || !index_def->IsReady()) { + return false; + } + uint32_t real_idx = index_def->GetInnerPos(); + auto ts_col = index_def->GetTsColumn(); + std::optional ts_idx = ts_col ? std::optional{ts_col->GetId()} : std::nullopt; + Slice spk(key); + uint32_t seg_idx = 0; + if (seg_cnt_ > 1) { + seg_idx = base::hash(spk.data(), spk.size(), SEED) % seg_cnt_; + } + if (!start_ts.has_value() && !end_ts.has_value()) { + return segments_[real_idx][seg_idx]->Delete(ts_idx, spk); + } else { + uint64_t real_start_ts = start_ts.has_value() ? start_ts.value() : UINT64_MAX; + return segments_[real_idx][seg_idx]->Delete(ts_idx, spk, real_start_ts, end_ts); + } + return true; +} + uint64_t MemTable::Release() { if (segment_released_) { return 0; diff --git a/src/storage/mem_table.h b/src/storage/mem_table.h index 48e313b3eec..8ae1964e0ef 100644 --- a/src/storage/mem_table.h +++ b/src/storage/mem_table.h @@ -59,6 +59,8 @@ class MemTable : public Table { const ::google::protobuf::RepeatedPtrField<::openmldb::api::BulkLoadIndex>& indexes); bool Delete(const ::openmldb::api::LogEntry& entry) override; + bool Delete(uint32_t idx, const std::string& key, + const std::optional& start_ts, const std::optional& end_ts); // use the first demission TableIterator* NewIterator(const std::string& pk, Ticket& ticket) override; diff --git a/src/storage/table.h b/src/storage/table.h index 55c89d7674a..32a957c9db7 100644 --- a/src/storage/table.h +++ b/src/storage/table.h @@ -59,6 +59,9 @@ class Table { virtual bool Delete(const ::openmldb::api::LogEntry& entry) = 0; + virtual bool Delete(uint32_t idx, const std::string& key, + const std::optional& start_ts, const std::optional& end_ts) = 0; + virtual TableIterator* NewIterator(const std::string& pk, Ticket& ticket) = 0; // NOLINT diff --git a/src/tablet/combine_iterator.h b/src/tablet/combine_iterator.h index 1250cb83ca2..d7b97ddbb03 100644 --- a/src/tablet/combine_iterator.h +++ b/src/tablet/combine_iterator.h @@ -27,7 +27,7 @@ namespace tablet { __attribute__((unused)) static bool SeekWithCount(::openmldb::storage::TableIterator* it, const uint64_t time, const ::openmldb::api::GetType& type, uint32_t max_cnt, uint32_t* cnt) { - if (it == NULL) { + if (it == nullptr) { return false; } it->SeekToFirst(); @@ -63,7 +63,7 @@ __attribute__((unused)) static bool SeekWithCount(::openmldb::storage::TableIter __attribute__((unused)) static bool Seek(::openmldb::storage::TableIterator* it, const uint64_t time, const ::openmldb::api::GetType& type) { - if (it == NULL) { + if (it == nullptr) { return false; } switch (type) { @@ -91,15 +91,15 @@ __attribute__((unused)) static bool Seek(::openmldb::storage::TableIterator* it, __attribute__((unused)) static int GetIterator(std::shared_ptr<::openmldb::storage::Table> table, const std::string& pk, int index, std::shared_ptr<::openmldb::storage::TableIterator>* it, std::shared_ptr<::openmldb::storage::Ticket>* ticket) { - if (it == NULL || ticket == NULL) { + if (it == nullptr || ticket == nullptr) { return -1; } if (!(*ticket)) { *ticket = std::make_shared<::openmldb::storage::Ticket>(); } - ::openmldb::storage::TableIterator* cur_it = NULL; + ::openmldb::storage::TableIterator* cur_it = nullptr; cur_it = table->NewIterator(index, pk, *(ticket->get())); - if (cur_it == NULL) { + if (cur_it == nullptr) { return -1; } it->reset(cur_it); diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index f30f1f8b74b..a919c8ae52a 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -20,8 +20,6 @@ #include #include #include -#include "absl/time/clock.h" -#include "absl/time/time.h" #ifdef DISALLOW_COPY_AND_ASSIGN #undef DISALLOW_COPY_AND_ASSIGN #endif @@ -34,12 +32,10 @@ #include #include "absl/cleanup/cleanup.h" +#include "absl/time/clock.h" +#include "absl/time/time.h" #include "boost/bind.hpp" #include "boost/container/deque.hpp" -#include "config.h" // NOLINT -#ifdef TCMALLOC_ENABLE -#include "gperftools/malloc_extension.h" -#endif #include "base/file_util.h" #include "base/glog_wrapper.h" #include "base/hash.h" @@ -53,8 +49,12 @@ #include "codec/row_codec.h" #include "codec/sql_rpc_row_codec.h" #include "common/timer.h" +#include "config.h" // NOLINT #include "gflags/gflags.h" #include "glog/logging.h" +#ifdef TCMALLOC_ENABLE +#include "gperftools/malloc_extension.h" +#endif #include "google/protobuf/io/zero_copy_stream_impl.h" #include "google/protobuf/text_format.h" #include "nameserver/task.h" @@ -66,11 +66,8 @@ #include "tablet/file_sender.h" using ::openmldb::base::ReturnCode; -using ::openmldb::codec::SchemaCodec; -using ::openmldb::storage::DataBlock; using ::openmldb::storage::DiskTable; using ::openmldb::storage::Table; -using google::protobuf::RepeatedPtrField; DECLARE_int32(gc_interval); DECLARE_int32(gc_pool_size); @@ -125,7 +122,6 @@ DECLARE_int32(snapshot_pool_size); namespace openmldb { namespace tablet { -static const std::string SERVER_CONCURRENCY_KEY = "server"; // NOLINT static const uint32_t SEED = 0xe17a1465; static constexpr const char DEPLOY_STATS[] = "deploy_stats"; @@ -212,9 +208,8 @@ bool TabletImpl::Init(const std::string& zk_cluster, const std::string& zk_path, } else { options.SetClusterOptimized(false); } - engine_ = std::unique_ptr<::hybridse::vm::Engine>(new ::hybridse::vm::Engine(catalog_, options)); - catalog_->SetLocalTablet( - std::shared_ptr<::hybridse::vm::Tablet>(new ::hybridse::vm::LocalTablet(engine_.get(), sp_cache_))); + engine_ = std::make_unique<::hybridse::vm::Engine>(catalog_, options); + catalog_->SetLocalTablet(std::make_shared<::hybridse::vm::LocalTablet>(engine_.get(), sp_cache_)); std::set snapshot_compression_set{"off", "zlib", "snappy"}; if (snapshot_compression_set.find(FLAGS_snapshot_compression) == snapshot_compression_set.end()) { LOG(ERROR) << "wrong snapshot_compression: " << FLAGS_snapshot_compression; @@ -1602,34 +1597,80 @@ void TabletImpl::Delete(RpcController* controller, const ::openmldb::api::Delete PDLOG(WARNING, "invalid args. tid %u, pid %u", tid, pid); return; } - if (table->Delete(entry)) { - response->set_code(::openmldb::base::ReturnCode::kOk); - response->set_msg("ok"); - DEBUGLOG("delete ok. tid %u, pid %u, key %s", tid, pid, request->key().c_str()); - } else { - response->set_code(::openmldb::base::ReturnCode::kDeleteFailed); - response->set_msg("delete failed"); - return; - } - - // delete the entries from pre-aggr table auto aggrs = GetAggregators(tid, pid); - if (aggrs) { - for (const auto& aggr : *aggrs) { - if (aggr->GetIndexPos() != idx) { - continue; + if (!aggrs) { + if (table->Delete(entry)) { + DEBUGLOG("delete ok. tid %u, pid %u, key %s", tid, pid, request->key().c_str()); + } else { + response->set_code(::openmldb::base::ReturnCode::kDeleteFailed); + response->set_msg("delete failed"); + return; + } + } else { + auto get_aggregator = [this](std::shared_ptr aggrs, uint32_t idx) -> std::shared_ptr { + if (aggrs) { + for (const auto& aggr : *aggrs) { + if (aggr->GetIndexPos() == idx) { + return aggr; + } + } } - auto ok = aggr->Delete(request->key()); - if (!ok) { - PDLOG(WARNING, - "delete from aggr failed. base table: tid[%u] pid[%u] index[%u] key[%s]. aggr table: tid[%u]", - tid, pid, idx, request->key().c_str(), aggr->GetAggrTid()); - response->set_code(::openmldb::base::ReturnCode::kDeleteFailed); - response->set_msg("delete from associated pre-aggr table failed"); - return; + return {}; + }; + std::optional start_ts = entry.has_ts() ? std::optional{entry.ts()} : std::nullopt; + std::optional end_ts = entry.has_end_ts() ? std::optional{entry.end_ts()} : std::nullopt; + if (entry.dimensions_size() > 0) { + for (const auto& dimension : entry.dimensions()) { + if (!table->Delete(dimension.idx(), dimension.key(), start_ts, end_ts)) { + response->set_code(::openmldb::base::ReturnCode::kDeleteFailed); + response->set_msg("delete failed"); + return; + } + auto aggr = get_aggregator(aggrs, dimension.idx()); + if (aggr) { + if (!aggr->Delete(dimension.key(), start_ts, end_ts)) { + PDLOG(WARNING, "delete from aggr failed. base table: tid[%u] pid[%u] index[%u] key[%s]. " + "aggr table: tid[%u]", + tid, pid, idx, dimension.key().c_str(), aggr->GetAggrTid()); + response->set_code(::openmldb::base::ReturnCode::kDeleteFailed); + response->set_msg("delete from associated pre-aggr table failed"); + return; + } + } + DEBUGLOG("delete ok. tid %u, pid %u, key %s", tid, pid, dimension.key().c_str()); + } + } else { + for (const auto& index_def : table->GetAllIndex()) { + if (!index_def || !index_def->IsReady()) { + continue; + } + uint32_t idx = index_def->GetId(); + std::unique_ptr iter(table->NewTraverseIterator(idx)); + iter->SeekToFirst(); + while (iter->Valid()) { + auto pk = iter->GetPK(); + iter->NextPK(); + if (!table->Delete(idx, pk, start_ts, end_ts)) { + response->set_code(::openmldb::base::ReturnCode::kDeleteFailed); + response->set_msg("delete failed"); + return; + } + auto aggr = get_aggregator(aggrs, idx); + if (aggr) { + if (!aggr->Delete(pk, start_ts, end_ts)) { + PDLOG(WARNING, "delete from aggr failed. base table: tid[%u] pid[%u] index[%u] key[%s]. " + "aggr table: tid[%u]", tid, pid, idx, pk.c_str(), aggr->GetAggrTid()); + response->set_code(::openmldb::base::ReturnCode::kDeleteFailed); + response->set_msg("delete from associated pre-aggr table failed"); + return; + } + } + } } } } + response->set_code(::openmldb::base::ReturnCode::kOk); + response->set_msg("ok"); replicator->AppendEntry(entry); if (FLAGS_binlog_notify_on_put) { @@ -5715,9 +5756,14 @@ bool TabletImpl::CreateAggregatorInternal(const ::openmldb::api::CreateAggregato return false; } auto aggr_replicator = GetReplicator(request->aggr_table_tid(), request->aggr_table_pid()); - auto aggregator = ::openmldb::storage::CreateAggregator( - base_meta, *aggr_table->GetTableMeta(), aggr_table, aggr_replicator, request->index_pos(), request->aggr_col(), - request->aggr_func(), request->order_by_col(), request->bucket_size(), request->filter_col()); + auto base_table = GetTable(base_meta.tid(), base_meta.pid()); + if (!base_table) { + PDLOG(WARNING, "base table does not exist. tid %u, pid %u", base_meta.tid(), base_meta.pid()); + return false; + } + auto aggregator = ::openmldb::storage::CreateAggregator(base_meta, base_table, + *aggr_table->GetTableMeta(), aggr_table, aggr_replicator, request->index_pos(), request->aggr_col(), + request->aggr_func(), request->order_by_col(), request->bucket_size(), request->filter_col()); if (!aggregator) { msg.assign("create aggregator failed"); return false; diff --git a/src/tablet/tablet_impl_test.cc b/src/tablet/tablet_impl_test.cc index da5cc626bf0..d7bdc631611 100644 --- a/src/tablet/tablet_impl_test.cc +++ b/src/tablet/tablet_impl_test.cc @@ -249,6 +249,23 @@ int PutKVData(uint32_t tid, uint32_t pid, const std::string& key, const std::str return presponse.code(); } +std::pair ScanFromTablet(uint32_t tid, uint32_t pid, const std::string& key, const std::string& idx_name, + uint64_t st, uint64_t et, TabletImpl* tablet) { + ::openmldb::api::ScanRequest sr; + sr.set_tid(tid); + sr.set_pid(pid); + sr.set_pk(key); + if (!idx_name.empty()) { + sr.set_idx_name(idx_name); + } + sr.set_st(st); + sr.set_et(et); + ::openmldb::api::ScanResponse srp; + MockClosure closure; + tablet->Scan(NULL, &sr, &srp, &closure); + return std::make_pair(srp.code(), srp.count()); +} + int GetTTL(TabletImpl& tablet, uint32_t tid, uint32_t pid, const std::string& index_name, // NOLINT ::openmldb::common::TTLSt* ttl) { ::openmldb::api::GetTableSchemaRequest request; @@ -5504,17 +5521,9 @@ TEST_F(TabletImplTest, AggregatorRecovery) { ASSERT_EQ(0, response.code()); sleep(3); - - ::openmldb::api::ScanRequest sr; - sr.set_tid(aggr_table_id); - sr.set_pid(1); - sr.set_pk("id1"); - sr.set_st(100); - sr.set_et(0); - ::openmldb::api::ScanResponse srp; - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); - ASSERT_EQ(0, (signed)srp.count()); + auto result = ScanFromTablet(aggr_table_id, 1, "id1", "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + ASSERT_EQ(0, result.second); auto aggrs = tablet.GetAggregators(base_table_id, 1); ASSERT_EQ(aggrs->size(), 1); auto aggr = aggrs->at(0); @@ -5586,26 +5595,13 @@ TEST_F(TabletImplTest, AggregatorRecovery) { ASSERT_EQ(0, response.code()); sleep(3); - - ::openmldb::api::ScanRequest sr; - sr.set_tid(aggr_table_id); - sr.set_pid(1); - sr.set_pk("id1"); - sr.set_st(100); - sr.set_et(0); - ::openmldb::api::ScanResponse srp; - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); - ASSERT_EQ(49, (signed)srp.count()); - sr.set_tid(aggr_table_id); - sr.set_pid(1); - sr.set_pk("id2"); - sr.set_st(100); - sr.set_et(0); - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); + auto result = ScanFromTablet(aggr_table_id, 1, "id1", "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + ASSERT_EQ(49, result.second); + result = ScanFromTablet(aggr_table_id, 1, "id2", "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); // 50 = 49 (the number of aggr value) + 1 (the number of out-of-order put) - ASSERT_EQ(50, (signed)srp.count()); + ASSERT_EQ(50, result.second); auto aggrs = tablet.GetAggregators(base_table_id, 1); ASSERT_EQ(aggrs->size(), 1); auto aggr = aggrs->at(0); @@ -5831,7 +5827,7 @@ TEST_F(TabletImplTest, AggregatorDeleteKey) { ::openmldb::api::PutRequest prequest; ::openmldb::test::SetDimension(0, key, prequest.add_dimensions()); prequest.set_time(i); - prequest.set_value(EncodeAggrRow("id1", i, i)); + prequest.set_value(EncodeAggrRow(key, i, i)); prequest.set_tid(base_table_id); prequest.set_pid(1); ::openmldb::api::PutResponse presponse; @@ -5844,31 +5840,17 @@ TEST_F(TabletImplTest, AggregatorDeleteKey) { // check the base table for (int32_t k = 1; k <= 2; k++) { std::string key = absl::StrCat("id", k); - ::openmldb::api::ScanRequest sr; - sr.set_tid(base_table_id); - sr.set_pid(1); - sr.set_pk(key); - sr.set_st(100); - sr.set_et(0); - ::openmldb::api::ScanResponse srp; - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); - ASSERT_EQ(100, (signed)srp.count()); + auto result = ScanFromTablet(base_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + ASSERT_EQ(100, result.second); } // check the pre-aggr table for (int32_t k = 1; k <= 2; k++) { std::string key = absl::StrCat("id", k); - ::openmldb::api::ScanRequest sr; - sr.set_tid(aggr_table_id); - sr.set_pid(1); - sr.set_pk(key); - sr.set_st(100); - sr.set_et(0); - ::openmldb::api::ScanResponse srp; - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); - ASSERT_EQ(49, (signed)srp.count()); + auto result = ScanFromTablet(aggr_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + ASSERT_EQ(49, result.second); auto aggrs = tablet.GetAggregators(base_table_id, 1); ASSERT_EQ(aggrs->size(), 1); @@ -5892,44 +5874,26 @@ TEST_F(TabletImplTest, AggregatorDeleteKey) { for (int32_t k = 1; k <= 2; k++) { std::string key = absl::StrCat("id", k); - ::openmldb::api::ScanRequest sr; - sr.set_tid(base_table_id); - sr.set_pid(1); - sr.set_pk(key); - sr.set_st(100); - sr.set_et(0); - ::openmldb::api::ScanResponse srp; - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); - ASSERT_EQ(k == 1 ? 0 : 100, (signed)srp.count()); + auto result = ScanFromTablet(base_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + ASSERT_EQ(k == 1 ? 0 : 100, result.second); } // check the pre-aggr table for (int32_t k = 1; k <= 2; k++) { std::string key = absl::StrCat("id", k); - ::openmldb::api::ScanRequest sr; - sr.set_tid(aggr_table_id); - sr.set_pid(1); - sr.set_pk(key); - sr.set_st(100); - sr.set_et(0); - ::openmldb::api::ScanResponse srp; - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); + auto result = ScanFromTablet(aggr_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + auto aggrs = tablet.GetAggregators(base_table_id, 1); + ASSERT_EQ(aggrs->size(), 1); + auto aggr = aggrs->at(0); + ::openmldb::storage::AggrBuffer* aggr_buffer = nullptr; if (k == 1) { - ASSERT_EQ(0, (signed)srp.count()); - auto aggrs = tablet.GetAggregators(base_table_id, 1); - ASSERT_EQ(aggrs->size(), 1); - auto aggr = aggrs->at(0); - ::openmldb::storage::AggrBuffer* aggr_buffer = nullptr; + ASSERT_EQ(0, result.second); ASSERT_FALSE(aggr->GetAggrBuffer(key, &aggr_buffer)); ASSERT_EQ(nullptr, aggr_buffer); } else { - ASSERT_EQ(49, (signed)srp.count()); - auto aggrs = tablet.GetAggregators(base_table_id, 1); - ASSERT_EQ(aggrs->size(), 1); - auto aggr = aggrs->at(0); - ::openmldb::storage::AggrBuffer* aggr_buffer; + ASSERT_EQ(49, result.second); aggr->GetAggrBuffer(key, &aggr_buffer); ASSERT_EQ(aggr_buffer->aggr_cnt_, 2); ASSERT_EQ(aggr_buffer->aggr_val_.vlong, 199); @@ -5964,44 +5928,26 @@ TEST_F(TabletImplTest, AggregatorDeleteKey) { for (int32_t k = 1; k <= 2; k++) { std::string key = absl::StrCat("id", k); - ::openmldb::api::ScanRequest sr; - sr.set_tid(base_table_id); - sr.set_pid(1); - sr.set_pk(key); - sr.set_st(100); - sr.set_et(0); - ::openmldb::api::ScanResponse srp; - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); - ASSERT_EQ(k == 1 ? 0 : 100, (signed)srp.count()); + auto result = ScanFromTablet(base_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + ASSERT_EQ(k == 1 ? 0 : 100, result.second); } // check the pre-aggr table for (int32_t k = 1; k <= 2; k++) { std::string key = absl::StrCat("id", k); - ::openmldb::api::ScanRequest sr; - sr.set_tid(aggr_table_id); - sr.set_pid(1); - sr.set_pk(key); - sr.set_st(100); - sr.set_et(0); - ::openmldb::api::ScanResponse srp; - tablet.Scan(NULL, &sr, &srp, &closure); - ASSERT_EQ(0, srp.code()); + auto result = ScanFromTablet(aggr_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + auto aggrs = tablet.GetAggregators(base_table_id, 1); + ASSERT_EQ(aggrs->size(), 1); + auto aggr = aggrs->at(0); + ::openmldb::storage::AggrBuffer* aggr_buffer = nullptr; if (k == 1) { - ASSERT_EQ(0, (signed)srp.count()); - auto aggrs = tablet.GetAggregators(base_table_id, 1); - ASSERT_EQ(aggrs->size(), 1); - auto aggr = aggrs->at(0); - ::openmldb::storage::AggrBuffer* aggr_buffer = nullptr; + ASSERT_EQ(0, result.second) << "scan key is " << key << " tid " << aggr_table_id; ASSERT_FALSE(aggr->GetAggrBuffer(key, &aggr_buffer)); ASSERT_EQ(nullptr, aggr_buffer); } else { - ASSERT_EQ(49, (signed)srp.count()); - auto aggrs = tablet.GetAggregators(base_table_id, 1); - ASSERT_EQ(aggrs->size(), 1); - auto aggr = aggrs->at(0); - ::openmldb::storage::AggrBuffer* aggr_buffer; + ASSERT_EQ(49, result.second); aggr->GetAggrBuffer(key, &aggr_buffer); ASSERT_EQ(aggr_buffer->aggr_cnt_, 2); ASSERT_EQ(aggr_buffer->aggr_val_.vlong, 199); @@ -6011,6 +5957,303 @@ TEST_F(TabletImplTest, AggregatorDeleteKey) { } } +struct DeleteInputParm { + DeleteInputParm() = default; + DeleteInputParm(const std::string& pk, const std::optional& start_ts_i, + const std::optional& end_ts_i) : key(pk), start_ts(start_ts_i), end_ts(end_ts_i) {} + std::string key; + std::optional start_ts = std::nullopt; + std::optional end_ts = std::nullopt; +}; + +struct DeleteExpectParm { + DeleteExpectParm() = default; + DeleteExpectParm(uint64_t base_t_cnt, uint64_t agg_t_cnt, uint64_t agg_cnt, uint64_t value, uint64_t t_value) : + base_table_cnt(base_t_cnt), aggr_table_cnt(agg_t_cnt), aggr_cnt(agg_cnt), + aggr_buffer_value(value), aggr_table_value(t_value) {} + uint64_t base_table_cnt = 0; + uint64_t aggr_table_cnt = 0; + uint32_t aggr_cnt = 0; + uint64_t aggr_buffer_value = 0; + uint64_t aggr_table_value = 0; +}; + +struct DeleteParm { + DeleteParm(const DeleteInputParm& input_p, const DeleteExpectParm& expect_p) : input(input_p), expect(expect_p) {} + DeleteInputParm input; + DeleteExpectParm expect; +}; + +class AggregatorDeleteTest : public ::testing::TestWithParam {}; + +TEST_P(AggregatorDeleteTest, AggregatorDeleteRange) { + uint32_t aggr_table_id = 0; + uint32_t base_table_id = 0; + const auto& parm = GetParam(); + TabletImpl tablet; + tablet.Init(""); + ::openmldb::api::TableMeta base_table_meta; + // base table + uint32_t id = counter++; + base_table_id = id; + ::openmldb::api::CreateTableRequest request; + ::openmldb::api::TableMeta* table_meta = request.mutable_table_meta(); + table_meta->set_tid(id); + AddDefaultAggregatorBaseSchema(table_meta); + base_table_meta.CopyFrom(*table_meta); + ::openmldb::api::CreateTableResponse response; + MockClosure closure; + tablet.CreateTable(NULL, &request, &response, &closure); + ASSERT_EQ(0, response.code()); + + // pre aggr table + id = counter++; + aggr_table_id = id; + ::openmldb::api::TableMeta agg_table_meta; + table_meta = request.mutable_table_meta(); + table_meta->Clear(); + table_meta->set_tid(id); + AddDefaultAggregatorSchema(table_meta); + agg_table_meta.CopyFrom(*table_meta); + tablet.CreateTable(NULL, &request, &response, &closure); + ASSERT_EQ(0, response.code()); + + // create aggr + ::openmldb::api::CreateAggregatorRequest aggr_request; + table_meta = aggr_request.mutable_base_table_meta(); + table_meta->CopyFrom(base_table_meta); + aggr_request.set_aggr_table_tid(aggr_table_id); + aggr_request.set_aggr_table_pid(1); + aggr_request.set_aggr_col("col3"); + aggr_request.set_aggr_func("sum"); + aggr_request.set_index_pos(0); + aggr_request.set_order_by_col("ts_col"); + aggr_request.set_bucket_size("5"); + ::openmldb::api::CreateAggregatorResponse aggr_response; + tablet.CreateAggregator(NULL, &aggr_request, &aggr_response, &closure); + ASSERT_EQ(0, response.code()); + + // put data to base table + for (int32_t k = 1; k <= 2; k++) { + std::string key = absl::StrCat("id", k); + for (int32_t i = 1; i <= 100; i++) { + ::openmldb::api::PutRequest prequest; + ::openmldb::test::SetDimension(0, key, prequest.add_dimensions()); + prequest.set_time(i); + prequest.set_value(EncodeAggrRow("id1", i, i)); + prequest.set_tid(base_table_id); + prequest.set_pid(1); + ::openmldb::api::PutResponse presponse; + MockClosure closure; + tablet.Put(NULL, &prequest, &presponse, &closure); + ASSERT_EQ(0, presponse.code()); + } + } + + // check the base table + for (int32_t k = 1; k <= 2; k++) { + std::string key = absl::StrCat("id", k); + auto result = ScanFromTablet(base_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + ASSERT_EQ(100, result.second); + } + + // check the pre-aggr table + for (int32_t k = 1; k <= 2; k++) { + std::string key = absl::StrCat("id", k); + auto result = ScanFromTablet(aggr_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + ASSERT_EQ(19, result.second); + + auto aggrs = tablet.GetAggregators(base_table_id, 1); + ASSERT_EQ(aggrs->size(), 1); + auto aggr = aggrs->at(0); + ::openmldb::storage::AggrBuffer* aggr_buffer; + aggr->GetAggrBuffer(key, &aggr_buffer); + ASSERT_EQ(aggr_buffer->aggr_cnt_, 5); + ASSERT_EQ(aggr_buffer->aggr_val_.vlong, 490); + ASSERT_EQ(aggr_buffer->binlog_offset_, 100 * k); + } + + // delete key id1 + ::openmldb::api::DeleteRequest dr; + ::openmldb::api::GeneralResponse res; + dr.set_tid(base_table_id); + dr.set_pid(1); + auto dim = dr.add_dimensions(); + dim->set_idx(0); + dim->set_key(parm.input.key); + if (parm.input.start_ts.has_value()) { + dr.set_ts(parm.input.start_ts.value()); + } + if (parm.input.end_ts.has_value()) { + dr.set_end_ts(parm.input.end_ts.value()); + } + tablet.Delete(NULL, &dr, &res, &closure); + ASSERT_EQ(0, res.code()); + + for (int32_t k = 1; k <= 2; k++) { + std::string key = absl::StrCat("id", k); + auto result = ScanFromTablet(base_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + if (k == 1) { + ASSERT_EQ(result.second, parm.expect.base_table_cnt); + } else { + ASSERT_EQ(result.second, 100); + } + } + + // check the pre-aggr table + for (int32_t k = 1; k <= 2; k++) { + std::string key = absl::StrCat("id", k); + auto result = ScanFromTablet(aggr_table_id, 1, key, "", 100, 0, &tablet); + ASSERT_EQ(0, result.first); + auto aggrs = tablet.GetAggregators(base_table_id, 1); + ASSERT_EQ(aggrs->size(), 1); + auto aggr = aggrs->at(0); + ::openmldb::storage::AggrBuffer* aggr_buffer = nullptr; + if (k == 1) { + ASSERT_EQ(result.second, parm.expect.aggr_table_cnt); + ASSERT_TRUE(aggr->GetAggrBuffer(key, &aggr_buffer)); + ASSERT_EQ(aggr_buffer->aggr_cnt_, parm.expect.aggr_cnt); + ASSERT_EQ(aggr_buffer->aggr_val_.vlong, parm.expect.aggr_buffer_value); + } else { + ASSERT_EQ(19, result.second); + aggr->GetAggrBuffer(key, &aggr_buffer); + ASSERT_EQ(aggr_buffer->aggr_cnt_, 5); + ASSERT_EQ(aggr_buffer->aggr_val_.vlong, 490); + ASSERT_EQ(aggr_buffer->binlog_offset_, 100 * k); + } + } + for (int i = 1; i <= 2; i++) { + std::string key = absl::StrCat("id", i); + ::openmldb::api::ScanRequest sr; + sr.set_tid(aggr_table_id); + sr.set_pid(1); + sr.set_pk(key); + sr.set_st(100); + sr.set_et(0); + std::shared_ptr<::openmldb::api::ScanResponse> srp = std::make_shared<::openmldb::api::ScanResponse>(); + tablet.Scan(nullptr, &sr, srp.get(), &closure); + ASSERT_EQ(0, srp->code()); + + ::openmldb::base::ScanKvIterator kv_it(key, srp); + codec::RowView row_view(agg_table_meta.column_desc()); + uint64_t last_k = 0; + int64_t total_val = 0; + while (kv_it.Valid()) { + uint64_t k = kv_it.GetKey(); + if (last_k != k) { + const int8_t* row_ptr = reinterpret_cast(kv_it.GetValue().data()); + char* aggr_val = nullptr; + uint32_t ch_length = 0; + ASSERT_EQ(row_view.GetValue(row_ptr, 4, &aggr_val, &ch_length), 0); + int64_t val = *reinterpret_cast(aggr_val); + total_val += val; + last_k = k; + } + kv_it.Next(); + } + if (i == 1) { + ASSERT_EQ(total_val, parm.expect.aggr_table_value); + } else { + ASSERT_EQ(total_val, 4560); + } + } +} + +// [st, et] +uint64_t ComputeAgg(uint64_t st, uint64_t et) { + uint64_t val = 0; + for (auto i = st; i <= et; i++) { + val += i; + } + return val; +} + +std::vector delete_cases = { + /*0*/ DeleteParm(DeleteInputParm("id1", std::nullopt, 200), + DeleteExpectParm(100, 19, 5, ComputeAgg(96, 100), ComputeAgg(1, 95))), + /*1*/ DeleteParm(DeleteInputParm("id1", std::nullopt, 100), + DeleteExpectParm(100, 19, 5, ComputeAgg(96, 100), ComputeAgg(1, 95))), + /*2*/ DeleteParm(DeleteInputParm("id1", 200, 100), + DeleteExpectParm(100, 19, 5, ComputeAgg(96, 100), ComputeAgg(1, 95))), + /*3*/ DeleteParm(DeleteInputParm("id1", 200, 99), + DeleteExpectParm(99, 19, 4, ComputeAgg(96, 99), ComputeAgg(1, 95))), + /*4*/ DeleteParm(DeleteInputParm("id1", 200, 98), + DeleteExpectParm(98, 19, 3, ComputeAgg(96, 98), ComputeAgg(1, 95))), + /*5*/ DeleteParm(DeleteInputParm("id1", 99, 97), + DeleteExpectParm(98, 19, 3, 100 + 96 + 97, ComputeAgg(1, 95))), + /*6*/ DeleteParm(DeleteInputParm("id1", 98, 96), + DeleteExpectParm(98, 19, 3, 100 + 99 + 96, ComputeAgg(1, 95))), + /*7*/ DeleteParm(DeleteInputParm("id1", 98, 95), + DeleteExpectParm(97, 19, 2, 100 + 99, ComputeAgg(1, 95))), + /*8*/ DeleteParm(DeleteInputParm("id1", 95, 94), + DeleteExpectParm(99, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 94))), + /*9*/ DeleteParm(DeleteInputParm("id1", 95, 91), + DeleteExpectParm(96, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 91))), + /*10*/ DeleteParm(DeleteInputParm("id1", 95, 90), + DeleteExpectParm(95, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 90))), + /*11*/ DeleteParm(DeleteInputParm("id1", 95, 89), + DeleteExpectParm(94, 21, 5, ComputeAgg(96, 100), ComputeAgg(1, 89))), + /*12*/ DeleteParm(DeleteInputParm("id1", 95, 86), + DeleteExpectParm(91, 21, 5, ComputeAgg(96, 100), ComputeAgg(1, 86))), + /*13*/ DeleteParm(DeleteInputParm("id1", 95, 85), + DeleteExpectParm(90, 19, 5, ComputeAgg(96, 100), ComputeAgg(1, 85))), + /*14*/ DeleteParm(DeleteInputParm("id1", 95, 84), + DeleteExpectParm(89, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 84))), + /*15*/ DeleteParm(DeleteInputParm("id1", 95, 81), + DeleteExpectParm(86, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 81))), + /*16*/ DeleteParm(DeleteInputParm("id1", 95, 80), + DeleteExpectParm(85, 18, 5, ComputeAgg(96, 100), ComputeAgg(1, 80))), + /*17*/ DeleteParm(DeleteInputParm("id1", 95, 79), + DeleteExpectParm(84, 19, 5, ComputeAgg(96, 100), ComputeAgg(1, 79))), + /*18*/ DeleteParm(DeleteInputParm("id1", 78, 76), + DeleteExpectParm(98, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 95) - 78 - 77)), + /*19*/ DeleteParm(DeleteInputParm("id1", 80, 75), + DeleteExpectParm(95, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 95) - ComputeAgg(76, 80))), + /*20*/ DeleteParm(DeleteInputParm("id1", 80, 74), + DeleteExpectParm(94, 21, 5, ComputeAgg(96, 100), ComputeAgg(1, 95) - ComputeAgg(75, 80))), + /*21*/ DeleteParm(DeleteInputParm("id1", 80, 68), + DeleteExpectParm(88, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 68) + ComputeAgg(81, 95))), + /*22*/ DeleteParm(DeleteInputParm("id1", 80, 58), + DeleteExpectParm(78, 18, 5, ComputeAgg(96, 100), ComputeAgg(1, 58) + ComputeAgg(81, 95))), + /*23*/ DeleteParm(DeleteInputParm("id1", 100, 94), DeleteExpectParm(94, 20, 0, 0, ComputeAgg(1, 94))), + /*24*/ DeleteParm(DeleteInputParm("id1", 100, 91), DeleteExpectParm(91, 20, 0, 0, ComputeAgg(1, 91))), + /*25*/ DeleteParm(DeleteInputParm("id1", 100, 90), DeleteExpectParm(90, 20, 0, 0, ComputeAgg(1, 90))), + /*26*/ DeleteParm(DeleteInputParm("id1", 100, 89), DeleteExpectParm(89, 21, 0, 0, ComputeAgg(1, 89))), + /*27*/ DeleteParm(DeleteInputParm("id1", 100, 85), DeleteExpectParm(85, 19, 0, 0, ComputeAgg(1, 85))), + /*28*/ DeleteParm(DeleteInputParm("id1", 100, 84), DeleteExpectParm(84, 20, 0, 0, ComputeAgg(1, 84))), + /*29*/ DeleteParm(DeleteInputParm("id1", 99, 84), DeleteExpectParm(85, 20, 1, 100, ComputeAgg(1, 84))), + /*30*/ DeleteParm(DeleteInputParm("id1", 96, 84), + DeleteExpectParm(88, 20, 4, ComputeAgg(97, 100), ComputeAgg(1, 84))), + /*31*/ DeleteParm(DeleteInputParm("id1", 2, 1), + DeleteExpectParm(99, 20, 5, ComputeAgg(96, 100), ComputeAgg(1, 95) - 2)), + /*32*/ DeleteParm(DeleteInputParm("id1", 2, std::nullopt), + DeleteExpectParm(98, 20, 5, ComputeAgg(96, 100), ComputeAgg(3, 95))), + /*33*/ DeleteParm(DeleteInputParm("id1", 5, std::nullopt), + DeleteExpectParm(95, 20, 5, ComputeAgg(96, 100), ComputeAgg(6, 95))), + /*34*/ DeleteParm(DeleteInputParm("id1", 6, std::nullopt), + DeleteExpectParm(94, 19, 5, ComputeAgg(96, 100), ComputeAgg(7, 95))), + /*35*/ DeleteParm(DeleteInputParm("id1", 6, 0), + DeleteExpectParm(94, 19, 5, ComputeAgg(96, 100), ComputeAgg(7, 95))), + /*36*/ DeleteParm(DeleteInputParm("id1", 6, 1), + DeleteExpectParm(95, 21, 5, ComputeAgg(96, 100), ComputeAgg(7, 95) + 1)), + /*37*/ DeleteParm(DeleteInputParm("id1", 10, 1), + DeleteExpectParm(91, 21, 5, ComputeAgg(96, 100), ComputeAgg(11, 95) + 1)), + /*38*/ DeleteParm(DeleteInputParm("id1", 11, 1), + DeleteExpectParm(90, 20, 5, ComputeAgg(96, 100), ComputeAgg(12, 95) + 1)), + /*39*/ DeleteParm(DeleteInputParm("id1", 11, 0), + DeleteExpectParm(89, 18, 5, ComputeAgg(96, 100), ComputeAgg(12, 95))), + /*40*/ DeleteParm(DeleteInputParm("id1", 11, std::nullopt), + DeleteExpectParm(89, 18, 5, ComputeAgg(96, 100), ComputeAgg(12, 95))), + /*41*/ DeleteParm(DeleteInputParm("id1", 100, std::nullopt), DeleteExpectParm(0, 2, 0, 0, 0)), + /*42*/ DeleteParm(DeleteInputParm("id1", 100, 0), DeleteExpectParm(0, 2, 0, 0, 0)), + /*43*/ DeleteParm(DeleteInputParm("id1", std::nullopt, 0), DeleteExpectParm(0, 2, 0, 0, 0)), +}; + +INSTANTIATE_TEST_SUITE_P(AggregatorTest, AggregatorDeleteTest, testing::ValuesIn(delete_cases)); + TEST_F(TabletImplTest, DeleteRange) { uint32_t id = counter++; MockClosure closure; From aa8e756cf20aae7dfd598b8b97f39ed458d3bfa7 Mon Sep 17 00:00:00 2001 From: dl239 Date: Wed, 15 Nov 2023 09:41:52 +0800 Subject: [PATCH 092/111] feat: add insert benchmark (#3528) --- benchmark/pom.xml | 4 +- .../openmldb/benchmark/BenchmarkConfig.java | 2 + .../benchmark/OpenMLDBInsertBenchmark.java | 131 ++++++++++++++++++ benchmark/src/main/resources/conf.properties | 6 +- 4 files changed, 139 insertions(+), 4 deletions(-) create mode 100644 benchmark/src/main/java/com/_4paradigm/openmldb/benchmark/OpenMLDBInsertBenchmark.java diff --git a/benchmark/pom.xml b/benchmark/pom.xml index d1d7b99c916..572aec4d282 100644 --- a/benchmark/pom.xml +++ b/benchmark/pom.xml @@ -27,12 +27,12 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xs com.4paradigm.openmldb openmldb-jdbc - 0.7.0 + 0.8.3 com.4paradigm.openmldb openmldb-native - 0.7.0-allinone + 0.8.3-allinone org.slf4j diff --git a/benchmark/src/main/java/com/_4paradigm/openmldb/benchmark/BenchmarkConfig.java b/benchmark/src/main/java/com/_4paradigm/openmldb/benchmark/BenchmarkConfig.java index c6546cadc5d..4f9861cbda2 100644 --- a/benchmark/src/main/java/com/_4paradigm/openmldb/benchmark/BenchmarkConfig.java +++ b/benchmark/src/main/java/com/_4paradigm/openmldb/benchmark/BenchmarkConfig.java @@ -34,6 +34,7 @@ public class BenchmarkConfig { public static long TS_BASE = System.currentTimeMillis(); public static String DEPLOY_NAME; public static String CSV_PATH; + public static int PUT_BACH_SIZE = 1; private static SqlExecutor executor = null; private static SdkOption option = null; @@ -58,6 +59,7 @@ public class BenchmarkConfig { // if(!CSV_PATH.startsWith("/")){ // CSV_PATH=Util.getRootPath()+CSV_PATH; // } + PUT_BACH_SIZE = Integer.valueOf(prop.getProperty("PUT_BACH_SIZE", "1")); } catch (Exception e) { e.printStackTrace(); } diff --git a/benchmark/src/main/java/com/_4paradigm/openmldb/benchmark/OpenMLDBInsertBenchmark.java b/benchmark/src/main/java/com/_4paradigm/openmldb/benchmark/OpenMLDBInsertBenchmark.java new file mode 100644 index 00000000000..a856d46ecfd --- /dev/null +++ b/benchmark/src/main/java/com/_4paradigm/openmldb/benchmark/OpenMLDBInsertBenchmark.java @@ -0,0 +1,131 @@ +package com._4paradigm.openmldb.benchmark; + +import com._4paradigm.openmldb.sdk.SqlExecutor; +import org.openjdk.jmh.annotations.*; +import org.openjdk.jmh.runner.Runner; +import org.openjdk.jmh.runner.options.Options; +import org.openjdk.jmh.runner.options.OptionsBuilder; + +import java.sql.Timestamp; +import java.util.Random; +import java.util.concurrent.TimeUnit; + +@BenchmarkMode(Mode.SampleTime) +@OutputTimeUnit(TimeUnit.MICROSECONDS) +@State(Scope.Benchmark) +@Threads(10) +@Fork(value = 1, jvmArgs = {"-Xms8G", "-Xmx8G"}) +@Warmup(iterations = 2) +@Measurement(iterations = 5, time = 60) + +public class OpenMLDBInsertBenchmark { + private SqlExecutor executor; + private String database = "test_put_db"; + private String tableName = "test_put_t1"; + private int indexNum; + private String placeholderSQL; + private Random random; + int stringNum = 15; + int doubleNum= 5; + int timestampNum = 5; + int bigintNum = 5; + + public OpenMLDBInsertBenchmark() { + executor = BenchmarkConfig.GetSqlExecutor(false); + indexNum = BenchmarkConfig.WINDOW_NUM; + random = new Random(); + StringBuilder builder = new StringBuilder(); + builder.append("insert into "); + builder.append(tableName); + builder.append(" values ("); + for (int i = 0; i < stringNum + doubleNum + timestampNum + bigintNum; i++) { + if (i > 0) { + builder.append(", "); + } + builder.append("?"); + } + builder.append(");"); + placeholderSQL = builder.toString(); + } + + @Setup + public void initEnv() { + Util.executeSQL("CREATE DATABASE IF NOT EXISTS " + database + ";", executor); + Util.executeSQL("USE " + database + ";", executor); + String ddl = Util.genDDL(tableName, indexNum); + Util.executeSQL(ddl, executor); + } + + @Benchmark + public void executePut() { + java.sql.PreparedStatement pstmt = null; + try { + pstmt = executor.getInsertPreparedStmt(database, placeholderSQL); + for (int num = 0; num < BenchmarkConfig.PUT_BACH_SIZE; num++) { + int idx = 1; + for (int i = 0; i < stringNum; i++) { + if (i < indexNum) { + pstmt.setString(idx, String.valueOf(BenchmarkConfig.PK_BASE + random.nextInt(BenchmarkConfig.PK_NUM))); + } else { + pstmt.setString(idx, "v" + String.valueOf(100000 + random.nextInt(100000))); + } + idx++; + } + for (int i = 0; i < doubleNum; i++) { + pstmt.setDouble(idx, random.nextDouble()); + idx++; + } + for (int i = 0; i < timestampNum; i++) { + pstmt.setTimestamp(idx, new Timestamp(System.currentTimeMillis())); + idx++; + } + for (int i = 0; i < bigintNum; i++) { + pstmt.setLong(idx, random.nextLong()); + idx++; + } + if (BenchmarkConfig.PUT_BACH_SIZE > 1) { + pstmt.addBatch(); + } + } + if (BenchmarkConfig.PUT_BACH_SIZE > 1) { + pstmt.executeBatch(); + } else { + pstmt.execute(); + } + } catch (Exception e) { + e.printStackTrace(); + } finally { + if (pstmt != null) { + try { + pstmt.close(); + } catch (Exception e) { + e.printStackTrace(); + } + } + } + } + + @TearDown + public void cleanEnv() { + Util.executeSQL("USE " + database + ";", executor); + Util.executeSQL("DROP TABLE " + tableName + ";", executor); + Util.executeSQL("DROP DATABASE " + database + ";", executor); + } + + public static void main(String[] args) { + /* OpenMLDBPutBenchmark benchmark = new OpenMLDBPutBenchmark(); + benchmark.initEnv(); + benchmark.executePut(); + benchmark.cleanEnv();*/ + + try { + Options opt = new OptionsBuilder() + .include(OpenMLDBInsertBenchmark.class.getSimpleName()) + .forks(1) + .build(); + new Runner(opt).run(); + } catch (Exception e) { + e.printStackTrace(); + } + } +} diff --git a/benchmark/src/main/resources/conf.properties b/benchmark/src/main/resources/conf.properties index bf3d22a4310..bcde106ed08 100644 --- a/benchmark/src/main/resources/conf.properties +++ b/benchmark/src/main/resources/conf.properties @@ -1,5 +1,5 @@ -ZK_CLUSTER=172.24.4.55:30008 -ZK_PATH=/openmldb +ZK_CLUSTER=172.24.4.55:32200 +ZK_PATH=/openmldb_test WINDOW_NUM=2 WINDOW_SIZE=1000 @@ -12,3 +12,5 @@ PK_BASE=1000000 DATABASE=bank_perf DEPLOY_NAME=deploy_bank CSV_PATH=data/bank_flattenRequest.csv + +PUT_BACH_SIZE=100 \ No newline at end of file From bb6bc092450488735d603fa629d1b9ccaa8db586 Mon Sep 17 00:00:00 2001 From: dl239 Date: Wed, 15 Nov 2023 09:47:25 +0800 Subject: [PATCH 093/111] fix: fix gc coredump (#3561) --- src/storage/mem_table.cc | 36 +++++++++--------- src/storage/snapshot_test.cc | 73 ++++++++++++++++++++++++++++++++++++ 2 files changed, 90 insertions(+), 19 deletions(-) diff --git a/src/storage/mem_table.cc b/src/storage/mem_table.cc index 83cded915a3..4d085120c06 100644 --- a/src/storage/mem_table.cc +++ b/src/storage/mem_table.cc @@ -170,14 +170,18 @@ bool MemTable::Put(uint64_t time, const std::string& value, const Dimensions& di PDLOG(WARNING, "invalid schema version %u, tid %u pid %u", version, id_, pid_); return false; } - std::map ts_map; + std::map> ts_value_map; for (const auto& kv : inner_index_key_map) { auto inner_index = table_index_.GetInnerIndex(kv.first); if (!inner_index) { PDLOG(WARNING, "invalid inner index pos %d. tid %u pid %u", kv.first, id_, pid_); return false; } + std::map ts_map; for (const auto& index_def : inner_index->GetIndex()) { + if (!index_def->IsReady()) { + continue; + } auto ts_col = index_def->GetTsColumn(); if (ts_col) { int64_t ts = 0; @@ -192,34 +196,28 @@ bool MemTable::Put(uint64_t time, const std::string& value, const Dimensions& di return false; } ts_map.emplace(ts_col->GetId(), ts); - } - if (index_def->IsReady()) { real_ref_cnt++; } } + if (!ts_map.empty()) { + ts_value_map.emplace(kv.first, std::move(ts_map)); + } } - if (ts_map.empty()) { + if (ts_value_map.empty()) { return false; } auto* block = new DataBlock(real_ref_cnt, value.c_str(), value.length()); for (const auto& kv : inner_index_key_map) { - auto inner_index = table_index_.GetInnerIndex(kv.first); - bool need_put = false; - for (const auto& index_def : inner_index->GetIndex()) { - if (index_def->IsReady()) { - // TODO(hw): if we don't find this ts(has_found_ts==false), but it's ready, will put too? - need_put = true; - break; - } + auto iter = ts_value_map.find(kv.first); + if (iter == ts_value_map.end()) { + continue; } - if (need_put) { - uint32_t seg_idx = 0; - if (seg_cnt_ > 1) { - seg_idx = ::openmldb::base::hash(kv.second.data(), kv.second.size(), SEED) % seg_cnt_; - } - Segment* segment = segments_[kv.first][seg_idx]; - segment->Put(::openmldb::base::Slice(kv.second), ts_map, block); + uint32_t seg_idx = 0; + if (seg_cnt_ > 1) { + seg_idx = ::openmldb::base::hash(kv.second.data(), kv.second.size(), SEED) % seg_cnt_; } + Segment* segment = segments_[kv.first][seg_idx]; + segment->Put(::openmldb::base::Slice(kv.second), iter->second, block); } record_byte_size_.fetch_add(GetRecordSize(value.length())); return true; diff --git a/src/storage/snapshot_test.cc b/src/storage/snapshot_test.cc index bd1be720e8a..910a8bc7724 100644 --- a/src/storage/snapshot_test.cc +++ b/src/storage/snapshot_test.cc @@ -718,6 +718,79 @@ TEST_F(SnapshotTest, Recover_only_snapshot) { ASSERT_FALSE(it->Valid()); } +TEST_F(SnapshotTest, RecoverWithDeleteIndex) { + uint32_t tid = 12; + uint32_t pid = 0; + ::openmldb::api::TableMeta meta; + meta.set_tid(tid); + meta.set_pid(pid); + SchemaCodec::SetColumnDesc(meta.add_column_desc(), "userid", ::openmldb::type::kString); + SchemaCodec::SetColumnDesc(meta.add_column_desc(), "ts1", ::openmldb::type::kBigInt); + SchemaCodec::SetColumnDesc(meta.add_column_desc(), "ts2", ::openmldb::type::kBigInt); + SchemaCodec::SetColumnDesc(meta.add_column_desc(), "val", ::openmldb::type::kString); + SchemaCodec::SetIndex(meta.add_column_key(), "index1", "userid", "ts1", ::openmldb::type::kLatestTime, 0, 1); + SchemaCodec::SetIndex(meta.add_column_key(), "index2", "userid", "ts2", ::openmldb::type::kLatestTime, 0, 1); + + std::string snapshot_dir = absl::StrCat(FLAGS_db_root_path, "/", tid, "_", pid, "/snapshot"); + + ::openmldb::base::MkdirRecur(snapshot_dir); + std::string snapshot1 = "20231018.sdb"; + uint64_t offset = 0; + { + if (FLAGS_snapshot_compression != "off") { + snapshot1.append("."); + snapshot1.append(FLAGS_snapshot_compression); + } + std::string full_path = snapshot_dir + "/" + snapshot1; + FILE* fd_w = fopen(full_path.c_str(), "ab+"); + ASSERT_TRUE(fd_w != NULL); + ::openmldb::log::WritableFile* wf = ::openmldb::log::NewWritableFile(snapshot1, fd_w); + ::openmldb::log::Writer writer(FLAGS_snapshot_compression, wf); + ::openmldb::codec::SDKCodec sdk_codec(meta); + for (int i = 0; i < 5; i++) { + uint32_t ts = 100 + i; + for (int key_num = 0; key_num < 10; key_num++) { + std::string userid = absl::StrCat("userid", key_num); + std::string ts_str = std::to_string(ts); + std::vector row = {userid, ts_str, ts_str, "aa"}; + std::string result; + sdk_codec.EncodeRow(row, &result); + ::openmldb::api::LogEntry entry; + entry.set_log_index(offset++); + entry.set_value(result); + for (int k = 0; k < meta.column_key_size(); k++) { + auto dimension = entry.add_dimensions(); + dimension->set_key(userid); + dimension->set_idx(k); + } + entry.set_ts(ts); + entry.set_term(1); + std::string val; + bool ok = entry.SerializeToString(&val); + ASSERT_TRUE(ok); + Slice sval(val.c_str(), val.size()); + ::openmldb::log::Status status = writer.AddRecord(sval); + ASSERT_TRUE(status.ok()); + } + } + writer.EndLog(); + } + + auto index1 = meta.mutable_column_key(1); + index1->set_flag(1); + std::shared_ptr table = std::make_shared(meta); + table->Init(); + LogParts* log_part = new LogParts(12, 4, scmp); + MemTableSnapshot snapshot(tid, pid, log_part, FLAGS_db_root_path); + ASSERT_TRUE(snapshot.Init()); + int ret = snapshot.GenManifest(snapshot1, 50, offset, 1); + ASSERT_EQ(0, ret); + uint64_t r_offset = 0; + ASSERT_TRUE(snapshot.Recover(table, r_offset)); + ASSERT_EQ(r_offset, offset); + table->SchedGc(); +} + TEST_F(SnapshotTest, MakeSnapshot) { LogParts* log_part = new LogParts(12, 4, scmp); MemTableSnapshot snapshot(1, 2, log_part, FLAGS_db_root_path); From 125483b39281449c959801b436dda6859570a557 Mon Sep 17 00:00:00 2001 From: dl239 Date: Wed, 15 Nov 2023 10:09:29 +0800 Subject: [PATCH 094/111] feat: optimize insert in java sdk (#3525) --- .../common/codec/FlexibleRowBuilder.java | 3 + java/openmldb-jdbc/pom.xml | 5 + .../openmldb/jdbc/SQLInsertMetaData.java | 56 +- .../com/_4paradigm/openmldb/sdk/Common.java | 8 +- .../_4paradigm/openmldb/sdk/QueryFuture.java | 2 + .../_4paradigm/openmldb/sdk/SqlExecutor.java | 3 + .../impl/InsertPreparedStatementCache.java | 75 ++ .../sdk/impl/InsertPreparedStatementImpl.java | 916 ++++-------------- .../sdk/impl/InsertPreparedStatementMeta.java | 218 +++++ .../openmldb/sdk/impl/SqlClusterExecutor.java | 24 +- .../openmldb/jdbc/JDBCDriverTest.java | 1 - .../openmldb/jdbc/SQLRouterSmokeTest.java | 22 +- src/base/hash.h | 8 +- src/client/tablet_client.cc | 19 +- src/client/tablet_client.h | 3 + src/sdk/sql_cluster_router.cc | 62 ++ src/sdk/sql_cluster_router.h | 4 + src/sdk/sql_insert_row.h | 74 ++ src/sdk/sql_router.h | 4 + src/sdk/sql_router_sdk.i | 2 + 20 files changed, 749 insertions(+), 760 deletions(-) create mode 100644 java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementCache.java create mode 100644 java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementMeta.java diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/FlexibleRowBuilder.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/FlexibleRowBuilder.java index 5497237ce20..e9029fb7663 100644 --- a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/FlexibleRowBuilder.java +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/codec/FlexibleRowBuilder.java @@ -213,6 +213,9 @@ public boolean setNULL(int idx) { } Type.DataType type = metaData.getSchema().get(idx).getDataType(); if (type == Type.DataType.kVarchar || type == Type.DataType.kString) { + if (settedValue.at(idx)) { + return false; + } if (idx != metaData.getStrIdxList().get(curStrIdx)) { if (stringValueCache == null) { stringValueCache = new TreeMap<>(); diff --git a/java/openmldb-jdbc/pom.xml b/java/openmldb-jdbc/pom.xml index d98f248d811..5cb7936b908 100644 --- a/java/openmldb-jdbc/pom.xml +++ b/java/openmldb-jdbc/pom.xml @@ -61,6 +61,11 @@ snappy-java 1.1.7.2 + + com.github.ben-manes.caffeine + caffeine + 2.9.3 + diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLInsertMetaData.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLInsertMetaData.java index e4ccd903146..144c889c5b4 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLInsertMetaData.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/SQLInsertMetaData.java @@ -18,10 +18,7 @@ import static com._4paradigm.openmldb.sdk.impl.Util.sqlTypeToString; -import com._4paradigm.openmldb.DataType; -import com._4paradigm.openmldb.Schema; -import com._4paradigm.openmldb.common.Pair; -import com._4paradigm.openmldb.sdk.Common; +import com._4paradigm.openmldb.sdk.Schema; import java.sql.ResultSetMetaData; import java.sql.SQLException; @@ -29,42 +26,26 @@ public class SQLInsertMetaData implements ResultSetMetaData { - private final List schema; - private final Schema realSchema; - private final List> idx; + private final Schema schema; + private final List holeIdx; - public SQLInsertMetaData(List schema, - Schema realSchema, - List> idx) { + public SQLInsertMetaData(Schema schema, List holeIdx) { this.schema = schema; - this.realSchema = realSchema; - this.idx = idx; + this.holeIdx = holeIdx; } - private void checkSchemaNull() throws SQLException { - if (schema == null) { - throw new SQLException("schema is null"); - } - } - - private void checkIdx(int i) throws SQLException { - if (i <= 0) { + private void check(int i) throws SQLException { + if (i < 0) { throw new SQLException("index underflow"); } - if (i > schema.size()) { + if (i >= holeIdx.size()) { throw new SQLException("index overflow"); } } - public void check(int i) throws SQLException { - checkIdx(i); - checkSchemaNull(); - } - @Override public int getColumnCount() throws SQLException { - checkSchemaNull(); - return schema.size(); + return holeIdx.size(); } @Override @@ -93,9 +74,10 @@ public boolean isCurrency(int i) throws SQLException { @Override public int isNullable(int i) throws SQLException { - check(i); - Long index = idx.get(i - 1).getKey(); - if (realSchema.IsColumnNotNull(index)) { + int realIdx = i - 1; + check(realIdx); + boolean nullable = schema.isNullable(holeIdx.get(realIdx)); + if (!nullable) { return columnNoNulls; } else { return columnNullable; @@ -122,9 +104,9 @@ public String getColumnLabel(int i) throws SQLException { @Override public String getColumnName(int i) throws SQLException { - check(i); - Long index = idx.get(i - 1).getKey(); - return realSchema.GetColumnName(index); + int realIdx = i - 1; + check(realIdx); + return schema.getColumnName(holeIdx.get(realIdx)); } @Override @@ -159,9 +141,9 @@ public String getCatalogName(int i) throws SQLException { @Override public int getColumnType(int i) throws SQLException { - check(i); - Long index = idx.get(i - 1).getKey(); - return Common.type2SqlType(realSchema.GetColumnType(index)); + int realIdx = i - 1; + check(realIdx); + return schema.getColumnType(holeIdx.get(realIdx)); } @Override diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Common.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Common.java index 0c57cf26a5a..81f85482750 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Common.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/Common.java @@ -171,8 +171,12 @@ public static ProcedureInfo convertProcedureInfo(com._4paradigm.openmldb.Procedu spInfo.setDbName(procedureInfo.GetDbName()); spInfo.setProName(procedureInfo.GetSpName()); spInfo.setSql(procedureInfo.GetSql()); - spInfo.setInputSchema(convertSchema(procedureInfo.GetInputSchema())); - spInfo.setOutputSchema(convertSchema(procedureInfo.GetOutputSchema())); + com._4paradigm.openmldb.Schema inputSchema = procedureInfo.GetInputSchema(); + spInfo.setInputSchema(convertSchema(inputSchema)); + inputSchema.delete(); + com._4paradigm.openmldb.Schema outputSchema = procedureInfo.GetOutputSchema(); + spInfo.setOutputSchema(convertSchema(outputSchema)); + outputSchema.delete(); spInfo.setMainTable(procedureInfo.GetMainTable()); spInfo.setInputTables(procedureInfo.GetTables()); spInfo.setInputDbs(procedureInfo.GetDbs()); diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/QueryFuture.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/QueryFuture.java index 12bbd1ab8d9..94a75df69d4 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/QueryFuture.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/QueryFuture.java @@ -74,6 +74,8 @@ public java.sql.ResultSet get() throws InterruptedException, ExecutionException if (resultSet != null) { resultSet.delete(); } + queryFuture.delete(); + queryFuture = null; logger.error("call procedure failed: {}", msg); throw new ExecutionException(new SqlException("call procedure failed: " + msg)); } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/SqlExecutor.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/SqlExecutor.java index c89e53379bd..b55da67a430 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/SqlExecutor.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/SqlExecutor.java @@ -48,10 +48,13 @@ public interface SqlExecutor { @Deprecated java.sql.ResultSet executeSQL(String db, String sql); + @Deprecated SQLInsertRow getInsertRow(String db, String sql); + @Deprecated SQLInsertRows getInsertRows(String db, String sql); + @Deprecated ResultSet executeSQLRequest(String db, String sql, SQLRequestRow row); Statement getStatement(); diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementCache.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementCache.java new file mode 100644 index 00000000000..9139217cc45 --- /dev/null +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementCache.java @@ -0,0 +1,75 @@ +package com._4paradigm.openmldb.sdk.impl; + +import com._4paradigm.openmldb.common.zk.ZKClient; +import com._4paradigm.openmldb.proto.NS; +import com._4paradigm.openmldb.sdk.SqlException; +import com.github.benmanes.caffeine.cache.Cache; +import com.github.benmanes.caffeine.cache.Caffeine; +import org.apache.curator.framework.recipes.cache.NodeCache; +import org.apache.curator.framework.recipes.cache.NodeCacheListener; + +import java.util.*; +import java.util.concurrent.TimeUnit; + +public class InsertPreparedStatementCache { + + private Cache, InsertPreparedStatementMeta> cache; + + private ZKClient zkClient; + private NodeCache nodeCache; + private String tablePath; + + public InsertPreparedStatementCache(int cacheSize, ZKClient zkClient) throws SqlException { + cache = Caffeine.newBuilder().maximumSize(cacheSize).build(); + this.zkClient = zkClient; + if (zkClient != null) { + tablePath = zkClient.getConfig().getNamespace() + "/table/db_table_data"; + nodeCache = new NodeCache(zkClient.getClient(), zkClient.getConfig().getNamespace() + "/table/notify"); + try { + nodeCache.start(); + nodeCache.getListenable().addListener(new NodeCacheListener() { + @Override + public void nodeChanged() throws Exception { + checkAndInvalid(); + } + }); + } catch (Exception e) { + throw new SqlException("NodeCache exception: " + e.getMessage()); + } + } + } + + public InsertPreparedStatementMeta get(String db, String sql) { + return cache.getIfPresent(new AbstractMap.SimpleImmutableEntry<>(db, sql)); + } + + public void put(String db, String sql, InsertPreparedStatementMeta meta) { + cache.put(new AbstractMap.SimpleImmutableEntry<>(db, sql), meta); + } + + public void checkAndInvalid() throws Exception { + if (!zkClient.checkExists(tablePath)) { + return; + } + List children = zkClient.getChildren(tablePath); + Map, InsertPreparedStatementMeta> view = cache.asMap(); + Map, Integer> tableMap = new HashMap<>(); + for (String path : children) { + byte[] bytes = zkClient.getClient().getData().forPath(tablePath + "/" + path); + NS.TableInfo tableInfo = NS.TableInfo.parseFrom(bytes); + tableMap.put(new AbstractMap.SimpleImmutableEntry<>(tableInfo.getDb(), tableInfo.getName()), tableInfo.getTid()); + } + Iterator, InsertPreparedStatementMeta>> iterator + = view.entrySet().iterator(); + while (iterator.hasNext()) { + Map.Entry, InsertPreparedStatementMeta> entry = iterator.next(); + String db = entry.getKey().getKey(); + InsertPreparedStatementMeta meta = entry.getValue(); + String name = meta.getName(); + Integer tid = tableMap.get(new AbstractMap.SimpleImmutableEntry<>(db, name)); + if (tid != null && tid != meta.getTid()) { + cache.invalidate(entry.getKey()); + } + } + } +} diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementImpl.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementImpl.java index 1eeb10865b5..6acefe8acff 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementImpl.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementImpl.java @@ -18,99 +18,46 @@ import com._4paradigm.openmldb.*; -import com._4paradigm.openmldb.common.Pair; +import com._4paradigm.openmldb.common.codec.CodecUtil; +import com._4paradigm.openmldb.common.codec.FlexibleRowBuilder; +import com._4paradigm.openmldb.jdbc.PreparedStatement; import com._4paradigm.openmldb.jdbc.SQLInsertMetaData; import org.slf4j.Logger; import org.slf4j.LoggerFactory; -import java.io.InputStream; -import java.io.Reader; -import java.math.BigDecimal; -import java.net.URL; -import java.nio.charset.Charset; -import java.nio.charset.StandardCharsets; +import java.nio.ByteBuffer; +import java.nio.ByteOrder; import java.sql.*; import java.sql.Date; import java.sql.ResultSet; import java.util.*; -import java.util.stream.Collectors; -public class InsertPreparedStatementImpl implements PreparedStatement { - public static final Charset CHARSET = StandardCharsets.UTF_8; +public class InsertPreparedStatementImpl extends PreparedStatement { private static final Logger logger = LoggerFactory.getLogger(InsertPreparedStatementImpl.class); - private final String db; - private final String sql; - private final SQLRouter router; - - // need manual deletion - private final List currentRows = new ArrayList<>(); - private Schema currentSchema; - - private final List currentDatas; - private final List currentDatasType; - private final List hasSet; - // stmt insert idx -> real table schema idx - private final List> schemaIdxes; - // used by building row - private final List> sortedIdxes; - - private boolean closed = false; - private boolean closeOnComplete = false; - private Integer stringsLen = 0; - - public InsertPreparedStatementImpl(String db, String sql, SQLRouter router) throws SQLException { - this.db = db; - this.sql = sql; - this.router = router; + private SQLRouter router; + private FlexibleRowBuilder rowBuilder; + private InsertPreparedStatementMeta cache; - SQLInsertRow tempRow = getSQLInsertRow(); - this.currentSchema = tempRow.GetSchema(); - VectorUint32 idxes = tempRow.GetHoleIdx(); - - // In stmt order, if no columns in stmt, in schema order - // We'll sort it to schema order later, so needs the map - schemaIdxes = new ArrayList<>(idxes.size()); - // CurrentData and Type order is consistent with insert stmt. We'll do appending in schema order when build - // row. - currentDatas = new ArrayList<>(idxes.size()); - currentDatasType = new ArrayList<>(idxes.size()); - hasSet = new ArrayList<>(idxes.size()); - - for (int i = 0; i < idxes.size(); i++) { - Long realIdx = idxes.get(i); - schemaIdxes.add(new Pair<>(realIdx, i)); - DataType type = currentSchema.GetColumnType(realIdx); - currentDatasType.add(type); - currentDatas.add(null); - hasSet.add(false); - logger.debug("add col {}, {}", currentSchema.GetColumnName(realIdx), type); - } - // SQLInsertRow::AppendXXX order is the schema order(skip the no-hole columns) - sortedIdxes = schemaIdxes.stream().sorted(Comparator.comparing(Pair::getKey)) - .collect(Collectors.toList()); - } + private Set indexCol; + private Map> indexMap; + private Map indexValue; + private Map defaultIndexValue; + private List> batchValues; - private SQLInsertRow getSQLInsertRow() throws SQLException { - Status status = new Status(); - SQLInsertRow row = router.GetInsertRow(db, sql, status); - if (status.getCode() != 0) { - String msg = status.ToString(); - status.delete(); - if (row != null) { - row.delete(); - } - throw new SQLException("getSQLInsertRow failed, " + msg); - } - status.delete(); - return row; + public InsertPreparedStatementImpl(InsertPreparedStatementMeta cache, SQLRouter router) throws SQLException { + this.router = router; + rowBuilder = new FlexibleRowBuilder(cache.getCodecMeta()); + this.cache = cache; + indexCol = cache.getIndexPos(); + indexMap = cache.getIndexMap(); + indexValue = new HashMap<>(); + defaultIndexValue = cache.getDefaultIndexValue(); + batchValues = new ArrayList<>(); } - private void clearSQLInsertRowList() { - for (SQLInsertRow row : currentRows) { - row.delete(); - } - currentRows.clear(); + private int getSchemaIdx(int idx) throws SQLException { + return cache.getSchemaIdx(idx - 1); } @Override @@ -125,246 +72,237 @@ public int executeUpdate() throws SQLException { throw new SQLException("current do not support this method"); } - private void checkIdx(int i) throws SQLException { - if (closed) { - throw new SQLException("prepared statement closed"); - } - if (i <= 0) { - throw new SQLException("error sqe number"); - } - if (i > schemaIdxes.size()) { - throw new SQLException("out of data range"); - } - } - - private void checkType(int i, DataType type) throws SQLException { - if (currentDatasType.get(i - 1) != type) { - throw new SQLException("data type not match, expect " + currentDatasType.get(i - 1) + ", actual " + type); - } - } - - private void setNull(int i) throws SQLException { - checkIdx(i); - boolean notAllowNull = checkNotAllowNull(i); - if (notAllowNull) { + private boolean setNull(int i) throws SQLException { + if (!cache.getSchema().isNullable(i)) { throw new SQLException("this column not allow null"); } - hasSet.set(i - 1, true); - currentDatas.set(i - 1, null); + return rowBuilder.setNULL(i); } @Override public void setNull(int i, int i1) throws SQLException { - setNull(i); + int realIdx = getSchemaIdx(i); + if (!setNull(realIdx)) { + throw new SQLException("set null failed. pos is " + i); + } + if (indexCol.contains(realIdx)) { + indexValue.put(realIdx, InsertPreparedStatementMeta.NONETOKEN); + } } @Override public void setBoolean(int i, boolean b) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeBool); - hasSet.set(i - 1, true); - currentDatas.set(i - 1, b); - } - - @Override - @Deprecated - public void setByte(int i, byte b) throws SQLException { - throw new SQLException("current do not support this method"); + int realIdx = getSchemaIdx(i); + if (!rowBuilder.setBool(realIdx, b)) { + throw new SQLException("set bool failed. pos is " + i); + } + if (indexCol.contains(realIdx)) { + indexValue.put(realIdx, String.valueOf(b)); + } } @Override public void setShort(int i, short i1) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeInt16); - hasSet.set(i - 1, true); - currentDatas.set(i - 1, i1); + int realIdx = getSchemaIdx(i); + if (!rowBuilder.setSmallInt(realIdx, i1)) { + throw new SQLException("set short failed. pos is " + i); + } + if (indexCol.contains(realIdx)) { + indexValue.put(realIdx, String.valueOf(i1)); + } } @Override public void setInt(int i, int i1) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeInt32); - hasSet.set(i - 1, true); - currentDatas.set(i - 1, i1); - + int realIdx = getSchemaIdx(i); + if (!rowBuilder.setInt(realIdx, i1)) { + throw new SQLException("set int failed. pos is " + i); + } + if (indexCol.contains(realIdx)) { + indexValue.put(realIdx, String.valueOf(i1)); + } } @Override public void setLong(int i, long l) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeInt64); - hasSet.set(i - 1, true); - currentDatas.set(i - 1, l); + int realIdx = getSchemaIdx(i); + if (!rowBuilder.setBigInt(realIdx, l)) { + throw new SQLException("set long failed. pos is " + i); + } + if (indexCol.contains(realIdx)) { + indexValue.put(realIdx, String.valueOf(l)); + } } @Override public void setFloat(int i, float v) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeFloat); - hasSet.set(i - 1, true); - currentDatas.set(i - 1, v); + if (!rowBuilder.setFloat(getSchemaIdx(i), v)) { + throw new SQLException("set float failed. pos is " + i); + } } @Override public void setDouble(int i, double v) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeDouble); - hasSet.set(i - 1, true); - currentDatas.set(i - 1, v); - } - - @Override - @Deprecated - public void setBigDecimal(int i, BigDecimal bigDecimal) throws SQLException { - throw new SQLException("current do not support this type"); - } - - private boolean checkNotAllowNull(int i) { - Long idx = this.schemaIdxes.get(i - 1).getKey(); - return this.currentSchema.IsColumnNotNull(idx); + if (!rowBuilder.setDouble(getSchemaIdx(i), v)) { + throw new SQLException("set double failed. pos is " + i); + } } @Override public void setString(int i, String s) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeString); + int realIdx = getSchemaIdx(i); if (s == null) { - setNull(i); + setNull(realIdx); + if (indexCol.contains(realIdx)) { + indexValue.put(realIdx, InsertPreparedStatementMeta.NONETOKEN); + } return; } - byte[] bytes = s.getBytes(CHARSET); - // if this index already set, should first reduce length of bytes last time - if (hasSet.get(i - 1)) { - stringsLen -= ((byte[]) currentDatas.get(i - 1)).length; + if (!rowBuilder.setString(getSchemaIdx(i), s)) { + throw new SQLException("set string failed. pos is " + i); + } + if (indexCol.contains(realIdx)) { + if (s.isEmpty()) { + indexValue.put(realIdx, InsertPreparedStatementMeta.EMPTY_STRING); + } else { + indexValue.put(realIdx, s); + } } - stringsLen += bytes.length; - hasSet.set(i - 1, true); - currentDatas.set(i - 1, bytes); - } - - @Override - @Deprecated - public void setBytes(int i, byte[] bytes) throws SQLException { - throw new SQLException("current do not support this type"); } @Override public void setDate(int i, Date date) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeDate); + int realIdx = getSchemaIdx(i); + if (indexCol.contains(realIdx)) { + if (date != null) { + indexValue.put(realIdx, String.valueOf(CodecUtil.dateToDateInt(date))); + } else { + indexValue.put(realIdx, InsertPreparedStatementMeta.NONETOKEN); + } + } if (date == null) { - setNull(i); + if (!setNull(realIdx)) { + throw new SQLException("set date failed. pos is " + i); + } return; } - hasSet.set(i - 1, true); - currentDatas.set(i - 1, date); + if (!rowBuilder.setDate(realIdx, date)) { + throw new SQLException("set date failed. pos is " + i); + } } - @Override - @Deprecated - public void setTime(int i, Time time) throws SQLException { - throw new SQLException("current do not support this type"); - } @Override public void setTimestamp(int i, Timestamp timestamp) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeTimestamp); + int realIdx = getSchemaIdx(i); + if (indexCol.contains(realIdx)) { + if (timestamp != null) { + indexValue.put(realIdx, String.valueOf(timestamp.getTime())); + } else { + indexValue.put(realIdx, InsertPreparedStatementMeta.NONETOKEN); + } + } if (timestamp == null) { - setNull(i); + if (!setNull(realIdx)) { + throw new SQLException("set timestamp failed. pos is " + i); + } return; } - hasSet.set(i - 1, true); - long ts = timestamp.getTime(); - currentDatas.set(i - 1, ts); - } - - @Override - @Deprecated - public void setAsciiStream(int i, InputStream inputStream, int i1) throws SQLException { - throw new SQLException("current do not support this type"); - } - - @Override - @Deprecated - public void setUnicodeStream(int i, InputStream inputStream, int i1) throws SQLException { - throw new SQLException("current do not support this type"); - } - - @Override - @Deprecated - public void setBinaryStream(int i, InputStream inputStream, int i1) throws SQLException { - throw new SQLException("current do not support this type"); - } - - @Override - public void clearParameters() throws SQLException { - for (int i = 0; i < hasSet.size(); i++) { - hasSet.set(i, false); - currentDatas.set(i, null); + if (!rowBuilder.setTimestamp(realIdx, timestamp)) { + throw new SQLException("set timestamp failed. pos is " + i); } - stringsLen = 0; } @Override - @Deprecated - public void setObject(int i, Object o, int i1) throws SQLException { - throw new SQLException("current do not support this method"); - } - - private void buildRow() throws SQLException { - SQLInsertRow currentRow = getSQLInsertRow(); - boolean ok = currentRow.Init(stringsLen); - if (!ok) { - throw new SQLException("init row failed"); + public void clearParameters() throws SQLException { + rowBuilder.clear(); + indexValue.clear(); + } + + private ByteBuffer buildDimension() throws SQLException { + int totalLen = 0; + Map lenMap = new HashMap<>(); + for (Map.Entry> entry : indexMap.entrySet()) { + totalLen += 4; // encode the size of idx(int) + totalLen += 4; // encode the value size + int curLen = entry.getValue().size() - 1; + for (Integer pos : entry.getValue()) { + if (indexValue.containsKey(pos)) { + curLen += indexValue.get(pos).getBytes(CodecUtil.CHARSET).length; + } else if (defaultIndexValue.containsKey(pos)) { + curLen += defaultIndexValue.get(pos).getBytes(CodecUtil.CHARSET).length; + } else { + throw new SQLException("cannot get index value. pos is " + pos); + } + } + totalLen += curLen; + lenMap.put(entry.getKey(), curLen); } - - for (Pair sortedIdx : sortedIdxes) { - Integer currentDataIdx = sortedIdx.getValue(); - Object data = currentDatas.get(currentDataIdx); - if (data == null) { - ok = currentRow.AppendNULL(); - } else { - DataType curType = currentDatasType.get(currentDataIdx); - if (DataType.kTypeBool.equals(curType)) { - ok = currentRow.AppendBool((boolean) data); - } else if (DataType.kTypeDate.equals(curType)) { - Date date = (Date) data; - ok = currentRow.AppendDate(date.getYear() + 1900, date.getMonth() + 1, date.getDate()); - } else if (DataType.kTypeDouble.equals(curType)) { - ok = currentRow.AppendDouble((double) data); - } else if (DataType.kTypeFloat.equals(curType)) { - ok = currentRow.AppendFloat((float) data); - } else if (DataType.kTypeInt16.equals(curType)) { - ok = currentRow.AppendInt16((short) data); - } else if (DataType.kTypeInt32.equals(curType)) { - ok = currentRow.AppendInt32((int) data); - } else if (DataType.kTypeInt64.equals(curType)) { - ok = currentRow.AppendInt64((long) data); - } else if (DataType.kTypeString.equals(curType)) { - byte[] bdata = (byte[]) data; - ok = currentRow.AppendString(bdata, bdata.length); - } else if (DataType.kTypeTimestamp.equals(curType)) { - ok = currentRow.AppendTimestamp((long) data); + ByteBuffer dimensionValue = ByteBuffer.allocate(totalLen).order(ByteOrder.LITTLE_ENDIAN); + for (Map.Entry> entry : indexMap.entrySet()) { + Integer indexPos = entry.getKey(); + dimensionValue.putInt(indexPos); + dimensionValue.putInt(lenMap.get(indexPos)); + for (int i = 0; i < entry.getValue().size(); i++) { + int pos = entry.getValue().get(i); + if (i > 0) { + dimensionValue.put((byte)'|'); + } + if (indexValue.containsKey(pos)) { + dimensionValue.put(indexValue.get(pos).getBytes(CodecUtil.CHARSET)); } else { - throw new SQLException("unknown data type"); + dimensionValue.put(defaultIndexValue.get(pos).getBytes(CodecUtil.CHARSET)); } } - if (!ok) { - throw new SQLException("append failed on currentDataIdx: " + currentDataIdx + ", curType: " + currentDatasType.get(currentDataIdx) + ", current data: " + data); + } + return dimensionValue; + } + + private ByteBuffer buildRow() throws SQLException { + Map defaultValue = cache.getDefaultValue(); + if (!defaultValue.isEmpty()) { + for (Map.Entry entry : defaultValue.entrySet()) { + int idx = entry.getKey(); + Object val = entry.getValue(); + if (val == null) { + rowBuilder.setNULL(idx); + continue; + } + switch (cache.getSchema().getColumnType(idx)) { + case Types.BOOLEAN: + rowBuilder.setBool(idx, (boolean)val); + break; + case Types.SMALLINT: + rowBuilder.setSmallInt(idx, (short)val); + break; + case Types.INTEGER: + rowBuilder.setInt(idx, (int)val); + break; + case Types.BIGINT: + rowBuilder.setBigInt(idx, (long)val); + break; + case Types.FLOAT: + rowBuilder.setFloat(idx, (float)val); + break; + case Types.DOUBLE: + rowBuilder.setDouble(idx, (double)val); + break; + case Types.DATE: + rowBuilder.setDate(idx, (Date)val); + break; + case Types.TIMESTAMP: + rowBuilder.setTimestamp(idx, (Timestamp)val); + break; + case Types.VARCHAR: + rowBuilder.setString(idx, (String)val); + break; + } } } - if (!currentRow.Build()) { - throw new SQLException("build insert row failed(str size init != actual)"); + if (!rowBuilder.build()) { + throw new SQLException("encode row failed"); } - currentRows.add(currentRow); - clearParameters(); - } - - @Override - @Deprecated - public void setObject(int i, Object o) throws SQLException { - throw new SQLException("current do not support this method"); + return rowBuilder.getValue(); } @Override @@ -372,17 +310,19 @@ public boolean execute() throws SQLException { if (closed) { throw new SQLException("InsertPreparedStatement closed"); } - // buildRow will add a new row to currentRows - if (!currentRows.isEmpty()) { + if (!batchValues.isEmpty()) { throw new SQLException("please use executeBatch"); } - buildRow(); + ByteBuffer dimensions = buildDimension(); + ByteBuffer value = buildRow(); Status status = new Status(); // actually only one row - boolean ok = router.ExecuteInsert(db, sql, currentRows.get(0), status); + boolean ok = router.ExecuteInsert(cache.getDatabase(), cache.getName(), + cache.getTid(), cache.getPartitionNum(), + dimensions.array(), dimensions.capacity(), value.array(), value.capacity(), status); // cleanup rows even if insert failed // we can't execute() again without set new row, so we must clean up here - clearSQLInsertRowList(); + clearParameters(); if (!ok) { logger.error("execute insert failed: {}", status.ToString()); status.delete(); @@ -401,220 +341,24 @@ public void addBatch() throws SQLException { if (closed) { throw new SQLException("InsertPreparedStatement closed"); } - // build the current row and cleanup the cache of current row - // so that the cache is ready for new row - buildRow(); - } - - @Override - @Deprecated - public void setCharacterStream(int i, Reader reader, int i1) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setRef(int i, Ref ref) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setBlob(int i, Blob blob) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setClob(int i, Clob clob) throws SQLException { - throw new SQLException("current do not support this method"); + batchValues.add(new AbstractMap.SimpleImmutableEntry<>(buildDimension(), buildRow())); + clearParameters(); } - @Override - @Deprecated - public void setArray(int i, Array array) throws SQLException { - throw new SQLException("current do not support this method"); - } @Override public ResultSetMetaData getMetaData() throws SQLException { - return new SQLInsertMetaData(this.currentDatasType, this.currentSchema, this.schemaIdxes); + return new SQLInsertMetaData(cache.getSchema(), cache.getHoleIdx()); } @Override public void setDate(int i, Date date, Calendar calendar) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeDate); - if (date == null) { - setNull(i); - return; - } - hasSet.set(i - 1, true); - currentDatas.set(i - 1, date); - } - - @Override - @Deprecated - public void setTime(int i, Time time, Calendar calendar) throws SQLException { - throw new SQLException("current do not support this method"); + setDate(i, date); } @Override public void setTimestamp(int i, Timestamp timestamp, Calendar calendar) throws SQLException { - checkIdx(i); - checkType(i, DataType.kTypeTimestamp); - if (timestamp == null) { - setNull(i); - return; - } - hasSet.set(i - 1, true); - long ts = timestamp.getTime(); - currentDatas.set(i - 1, ts); - } - - @Override - @Deprecated - public void setNull(int i, int i1, String s) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setURL(int i, URL url) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public ParameterMetaData getParameterMetaData() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setRowId(int i, RowId rowId) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setNString(int i, String s) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setNCharacterStream(int i, Reader reader, long l) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setNClob(int i, NClob nClob) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setClob(int i, Reader reader, long l) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setBlob(int i, InputStream inputStream, long l) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setNClob(int i, Reader reader, long l) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setSQLXML(int i, SQLXML sqlxml) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setObject(int i, Object o, int i1, int i2) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setAsciiStream(int i, InputStream inputStream, long l) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setBinaryStream(int i, InputStream inputStream, long l) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setCharacterStream(int i, Reader reader, long l) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setAsciiStream(int i, InputStream inputStream) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setBinaryStream(int i, InputStream inputStream) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setCharacterStream(int i, Reader reader) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setNCharacterStream(int i, Reader reader) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setClob(int i, Reader reader) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setBlob(int i, InputStream inputStream) throws SQLException { - - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setNClob(int i, Reader reader) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public ResultSet executeQuery(String s) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int executeUpdate(String s) throws SQLException { - throw new SQLException("current do not support this method"); + setTimestamp(i, timestamp); } @Override @@ -622,158 +366,22 @@ public void close() throws SQLException { if (closed) { return; } - clearSQLInsertRowList(); - if (currentSchema != null) { - currentSchema.delete(); - currentSchema = null; - } closed = true; } - @Override - @Deprecated - public int getMaxFieldSize() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setMaxFieldSize(int i) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int getMaxRows() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setMaxRows(int i) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setEscapeProcessing(boolean b) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int getQueryTimeout() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setQueryTimeout(int i) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void cancel() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public SQLWarning getWarnings() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void clearWarnings() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setCursorName(String s) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public boolean execute(String s) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public ResultSet getResultSet() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int getUpdateCount() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public boolean getMoreResults() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public void setFetchDirection(int i) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Deprecated - @Override - public int getFetchDirection() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - public void setFetchSize(int i) throws SQLException { - } - - @Override - @Deprecated - public int getFetchSize() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int getResultSetConcurrency() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int getResultSetType() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - public void addBatch(String s) throws SQLException { - throw new SQLException("cannot take arguments in PreparedStatement"); - } - - @Override - @Deprecated - public void clearBatch() throws SQLException { - throw new SQLException("current do not support this method"); - } - @Override public int[] executeBatch() throws SQLException { if (closed) { throw new SQLException("InsertPreparedStatement closed"); } - int[] result = new int[currentRows.size()]; + int[] result = new int[batchValues.size()]; Status status = new Status(); - for (int i = 0; i < currentRows.size(); i++) { - boolean ok = router.ExecuteInsert(db, sql, currentRows.get(i), status); + for (int i = 0; i < batchValues.size(); i++) { + AbstractMap.SimpleImmutableEntry pair = batchValues.get(i); + boolean ok = router.ExecuteInsert(cache.getDatabase(), cache.getName(), + cache.getTid(), cache.getPartitionNum(), + pair.getKey().array(), pair.getKey().capacity(), + pair.getValue().array(), pair.getValue().capacity(), status); if (!ok) { // TODO(hw): may lost log, e.g. openmldb-batch online import in yarn mode? logger.warn(status.ToString()); @@ -781,106 +389,8 @@ public int[] executeBatch() throws SQLException { result[i] = ok ? 0 : -1; } status.delete(); - clearSQLInsertRowList(); + clearParameters(); + batchValues.clear(); return result; } - - @Override - @Deprecated - public Connection getConnection() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public boolean getMoreResults(int i) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public ResultSet getGeneratedKeys() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int executeUpdate(String s, int i) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int executeUpdate(String s, int[] ints) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int executeUpdate(String s, String[] strings) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public boolean execute(String s, int i) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public boolean execute(String s, int[] ints) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public boolean execute(String s, String[] strings) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public int getResultSetHoldability() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - public boolean isClosed() throws SQLException { - return closed; - } - - @Override - @Deprecated - public void setPoolable(boolean b) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public boolean isPoolable() throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - public void closeOnCompletion() throws SQLException { - this.closeOnComplete = true; - } - - @Override - public boolean isCloseOnCompletion() throws SQLException { - return this.closeOnComplete; - } - - @Override - @Deprecated - public T unwrap(Class aClass) throws SQLException { - throw new SQLException("current do not support this method"); - } - - @Override - @Deprecated - public boolean isWrapperFor(Class aClass) throws SQLException { - throw new SQLException("current do not support this method"); - } } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementMeta.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementMeta.java new file mode 100644 index 00000000000..448438e9d31 --- /dev/null +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/InsertPreparedStatementMeta.java @@ -0,0 +1,218 @@ +package com._4paradigm.openmldb.sdk.impl; + +import com._4paradigm.openmldb.SQLInsertRow; +import com._4paradigm.openmldb.DefaultValueContainer; +import com._4paradigm.openmldb.VectorUint32; +import com._4paradigm.openmldb.common.codec.CodecMetaData; +import com._4paradigm.openmldb.common.codec.CodecUtil; +import com._4paradigm.openmldb.proto.NS; +import com._4paradigm.openmldb.sdk.Common; +import com._4paradigm.openmldb.sdk.Schema; + +import java.sql.SQLException; +import java.sql.Timestamp; +import java.sql.Types; +import java.util.*; + +public class InsertPreparedStatementMeta { + + public static String NONETOKEN = "!N@U#L$L%"; + public static String EMPTY_STRING = "!@#$%"; + + private String sql; + private String db; + private String name; + private int tid; + private int partitionNum; + private Schema schema; + private CodecMetaData codecMetaData; + private Map defaultValue = new HashMap<>(); + private List holeIdx = new ArrayList<>(); + private Set indexPos = new HashSet<>(); + private Map> indexMap = new HashMap<>(); + private Map defaultIndexValue = new HashMap<>(); + + public InsertPreparedStatementMeta(String sql, NS.TableInfo tableInfo, SQLInsertRow insertRow) { + this.sql = sql; + try { + schema = Common.convertSchema(tableInfo.getColumnDescList()); + codecMetaData = new CodecMetaData(tableInfo.getColumnDescList(), false); + } catch (Exception e) { + e.printStackTrace(); + } + db = tableInfo.getDb(); + name = tableInfo.getName(); + tid = tableInfo.getTid(); + partitionNum = tableInfo.getTablePartitionCount(); + buildIndex(tableInfo); + DefaultValueContainer value = insertRow.GetDefaultValue(); + buildDefaultValue(value); + value.delete(); + VectorUint32 idxArray = insertRow.GetHoleIdx(); + buildHoleIdx(idxArray); + idxArray.delete(); + } + + private void buildIndex(NS.TableInfo tableInfo) { + Map nameIdxMap = new HashMap<>(); + for (int i = 0; i < schema.size(); i++) { + nameIdxMap.put(schema.getColumnName(i), i); + } + for (int i = 0; i < tableInfo.getColumnKeyList().size(); i++) { + com._4paradigm.openmldb.proto.Common.ColumnKey columnKey = tableInfo.getColumnKeyList().get(i); + List colList = new ArrayList<>(columnKey.getColNameCount()); + for (String name : columnKey.getColNameList()) { + colList.add(nameIdxMap.get(name)); + indexPos.add(nameIdxMap.get(name)); + } + indexMap.put(i, colList); + } + } + + private void buildHoleIdx(VectorUint32 idxArray) { + int size = idxArray.size(); + for (int i = 0; i < size; i++) { + holeIdx.add(idxArray.get(i).intValue()); + } + } + + private void buildDefaultValue(DefaultValueContainer valueContainer) { + VectorUint32 defaultPos = valueContainer.GetAllPosition(); + int size = defaultPos.size(); + for (int i = 0; i < size; i++) { + int schemaIdx = defaultPos.get(i).intValue(); + boolean isIndexVal = indexPos.contains(schemaIdx); + if (valueContainer.IsNull(schemaIdx)) { + defaultValue.put(schemaIdx, null); + if (isIndexVal) { + defaultIndexValue.put(schemaIdx, NONETOKEN); + } + } else { + switch (schema.getColumnType(schemaIdx)) { + case Types.BOOLEAN: { + boolean val = valueContainer.GetBool(schemaIdx); + defaultValue.put(schemaIdx, val); + if (isIndexVal) { + defaultIndexValue.put(schemaIdx, String.valueOf(val)); + } + break; + } + case Types.SMALLINT: { + short val = valueContainer.GetSmallInt(schemaIdx); + defaultValue.put(schemaIdx, val); + if (isIndexVal) { + defaultIndexValue.put(schemaIdx, String.valueOf(val)); + } + break; + } + case Types.INTEGER: { + int val = valueContainer.GetInt(schemaIdx); + defaultValue.put(schemaIdx, val); + if (isIndexVal) { + defaultIndexValue.put(schemaIdx, String.valueOf(val)); + } + break; + } + case Types.BIGINT: { + long val = valueContainer.GetBigInt(schemaIdx); + defaultValue.put(schemaIdx, val); + if (isIndexVal) { + defaultIndexValue.put(schemaIdx, String.valueOf(val)); + } + break; + } + case Types.FLOAT: + defaultValue.put(schemaIdx, valueContainer.GetFloat(schemaIdx)); + break; + case Types.DOUBLE: + defaultValue.put(schemaIdx, valueContainer.GetDouble(schemaIdx)); + break; + case Types.DATE: { + int val = valueContainer.GetDate(schemaIdx); + defaultValue.put(schemaIdx, CodecUtil.dateIntToDate(val)); + if (isIndexVal) { + defaultIndexValue.put(schemaIdx, String.valueOf(val)); + } + break; + } + case Types.TIMESTAMP: { + long val = valueContainer.GetTimeStamp(schemaIdx); + defaultValue.put(schemaIdx, new Timestamp(val)); + if (isIndexVal) { + defaultIndexValue.put(schemaIdx, String.valueOf(val)); + } + break; + } + case Types.VARCHAR: { + String val = valueContainer.GetString(schemaIdx); + defaultValue.put(schemaIdx, val); + if (isIndexVal) { + if (val.isEmpty()) { + defaultIndexValue.put(schemaIdx, EMPTY_STRING); + } else { + defaultIndexValue.put(schemaIdx, val); + } + } + break; + } + } + } + } + defaultPos.delete(); + } + + public Schema getSchema() { + return schema; + } + + public String getDatabase() { + return db; + } + + public String getName() { + return name; + } + + public int getTid() { + return tid; + } + + public int getPartitionNum() { + return partitionNum; + } + + public CodecMetaData getCodecMeta() { + return codecMetaData; + } + + public Map getDefaultValue() { + return defaultValue; + } + + public String getSql() { + return sql; + } + + public int getSchemaIdx(int idx) throws SQLException { + if (idx >= holeIdx.size()) { + throw new SQLException("out of data range"); + } + return holeIdx.get(idx); + } + + List getHoleIdx() { + return holeIdx; + } + + Set getIndexPos() { + return indexPos; + } + + Map> getIndexMap() { + return indexMap; + } + + Map getDefaultIndexValue() { + return defaultIndexValue; + } +} diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/SqlClusterExecutor.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/SqlClusterExecutor.java index 7d32ac092af..9505cd6aba9 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/SqlClusterExecutor.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/impl/SqlClusterExecutor.java @@ -52,6 +52,7 @@ import java.util.HashSet; import java.util.List; import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.atomic.AtomicBoolean; import java.util.stream.Collectors; @@ -62,6 +63,7 @@ public class SqlClusterExecutor implements SqlExecutor { private SQLRouter sqlRouter; private DeploymentManager deploymentManager; private ZKClient zkClient; + private InsertPreparedStatementCache insertCache; public SqlClusterExecutor(SdkOption option, String libraryPath) throws SqlException { initJavaSdkLibrary(libraryPath); @@ -91,6 +93,7 @@ public SqlClusterExecutor(SdkOption option, String libraryPath) throws SqlExcept throw new SqlException("fail to create sql executor"); } deploymentManager = new DeploymentManager(zkClient); + insertCache = new InsertPreparedStatementCache(option.getMaxSqlCacheSize(), zkClient); } public SqlClusterExecutor(SdkOption option) throws SqlException { @@ -183,7 +186,26 @@ public Statement getStatement() { @Override public PreparedStatement getInsertPreparedStmt(String db, String sql) throws SQLException { - return new InsertPreparedStatementImpl(db, sql, this.sqlRouter); + InsertPreparedStatementMeta meta = insertCache.get(db, sql); + if (meta == null) { + Status status = new Status(); + SQLInsertRow row = sqlRouter.GetInsertRow(db, sql, status); + if (!status.IsOK()) { + String msg = status.ToString(); + status.delete(); + if (row != null) { + row.delete(); + } + throw new SQLException("getSQLInsertRow failed, " + msg); + } + status.delete(); + String name = row.GetTableInfo().getName(); + NS.TableInfo tableInfo = getTableInfo(db, name); + meta = new InsertPreparedStatementMeta(sql, tableInfo, row); + row.delete(); + insertCache.put(db, sql, meta); + } + return new InsertPreparedStatementImpl(meta, this.sqlRouter); } @Override diff --git a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/JDBCDriverTest.java b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/JDBCDriverTest.java index 5c62bca51dc..6d449928b44 100644 --- a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/JDBCDriverTest.java +++ b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/JDBCDriverTest.java @@ -212,7 +212,6 @@ public void testForKafkaConnector() throws SQLException { // don't work, but do not throw exception pstmt.setFetchSize(100); - pstmt.addBatch(); insertSql = "INSERT INTO " + tableName + "(`c3`,`c2`) VALUES(?,?)"; diff --git a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/SQLRouterSmokeTest.java b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/SQLRouterSmokeTest.java index b8f54bfa5ca..68dc237d1cf 100644 --- a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/SQLRouterSmokeTest.java +++ b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/SQLRouterSmokeTest.java @@ -380,7 +380,7 @@ public void testInsertPreparedState(SqlExecutor router) { try { impl2.setString(2, "c"); } catch (Exception e) { - Assert.assertTrue(e.getMessage().contains("data type not match")); + Assert.assertTrue(e.getMessage().contains("set string failed")); } impl2.setString(1, "sandong"); impl2.setDate(2, d3); @@ -390,11 +390,16 @@ public void testInsertPreparedState(SqlExecutor router) { insert = "insert into tsql1010 values(?, ?, ?, ?, ?);"; PreparedStatement impl3 = router.getInsertPreparedStmt(dbname, insert); impl3.setLong(1, 1003); - impl3.setString(3, "zhejiangxx"); impl3.setString(3, "zhejiang"); - impl3.setString(4, "xxhangzhou"); + try { + impl3.setString(3, "zhejiangxx"); + Assert.fail(); + } catch (Exception e) { + Assert.assertTrue(true); + } impl3.setString(4, "hangzhou"); impl3.setDate(2, d4); + impl3.setInt(5, 3); impl3.setInt(5, 4); impl3.closeOnCompletion(); Assert.assertTrue(impl3.isCloseOnCompletion()); @@ -500,7 +505,7 @@ public void testInsertPreparedStateBatch(SqlExecutor router) { try { impl.setInt(2, 1002); } catch (Exception e) { - Assert.assertTrue(e.getMessage().contains("data type not match")); + Assert.assertTrue(e.getMessage().contains("set int failed")); } try { // set failed, so the row is uncompleted, appending row will be failed @@ -510,7 +515,7 @@ public void testInsertPreparedStateBatch(SqlExecutor router) { // j > 0, addBatch has been called Assert.assertEquals(e.getMessage(), "please use executeBatch"); } else { - Assert.assertTrue(e.getMessage().contains("append failed")); + Assert.assertTrue(e.getMessage().contains("cannot get index value")); } } impl.setLong(1, (Long) datas1[j][0]); @@ -536,7 +541,7 @@ public void testInsertPreparedStateBatch(SqlExecutor router) { try { impl2.setInt(2, 1002); } catch (Exception e) { - Assert.assertTrue(e.getMessage().contains("data type not match")); + Assert.assertTrue(e.getMessage().contains("set int failed")); } try { impl2.execute(); @@ -544,7 +549,7 @@ public void testInsertPreparedStateBatch(SqlExecutor router) { if (j > 0) { Assert.assertEquals(e.getMessage(), "please use executeBatch"); } else { - Assert.assertTrue(e.getMessage().contains("append failed")); + Assert.assertTrue(e.getMessage().contains("cannot get index value")); } } impl2.setLong(1, (Long) datas1[j][0]); @@ -562,8 +567,9 @@ public void testInsertPreparedStateBatch(SqlExecutor router) { Object[] datas2 = batchData[i]; try { impl2.addBatch((String) datas2[0]); + Assert.fail(); } catch (Exception e) { - Assert.assertEquals(e.getMessage(), "cannot take arguments in PreparedStatement"); + Assert.assertTrue(true); } int[] result = impl.executeBatch(); diff --git a/src/base/hash.h b/src/base/hash.h index 6e98be06d7f..df6962d3c5a 100644 --- a/src/base/hash.h +++ b/src/base/hash.h @@ -104,8 +104,8 @@ static uint64_t MurmurHash64A(const void* key, int len, unsigned int seed) { return h; } -static inline int64_t hash64(const std::string& key) { - uint64_t raw_value = MurmurHash64A(key.c_str(), key.length(), 0xe17a1465); +static inline int64_t hash64(const void* ptr, int len) { + uint64_t raw_value = MurmurHash64A(ptr, len, 0xe17a1465); int64_t cur_value = (int64_t)raw_value; // convert to signed integer as same as java client if (cur_value < 0) { @@ -114,6 +114,10 @@ static inline int64_t hash64(const std::string& key) { return cur_value; } +static inline int64_t hash64(const std::string& key) { + return hash64(key.c_str(), key.length()); +} + } // namespace base } // namespace openmldb diff --git a/src/client/tablet_client.cc b/src/client/tablet_client.cc index 9357b23e29a..938a1b747d7 100644 --- a/src/client/tablet_client.cc +++ b/src/client/tablet_client.cc @@ -189,16 +189,23 @@ bool TabletClient::UpdateTableMetaForAddField(uint32_t tid, const std::vector>& dimensions) { - ::openmldb::api::PutRequest request; - request.set_time(time); - request.set_value(value); - request.set_tid(tid); - request.set_pid(pid); + ::google::protobuf::RepeatedPtrField<::openmldb::api::Dimension> pb_dimensions; for (size_t i = 0; i < dimensions.size(); i++) { - ::openmldb::api::Dimension* d = request.add_dimensions(); + ::openmldb::api::Dimension* d = pb_dimensions.Add(); d->set_key(dimensions[i].first); d->set_idx(dimensions[i].second); } + return Put(tid, pid, time, base::Slice(value), &pb_dimensions); +} + +bool TabletClient::Put(uint32_t tid, uint32_t pid, uint64_t time, const base::Slice& value, + ::google::protobuf::RepeatedPtrField<::openmldb::api::Dimension>* dimensions) { + ::openmldb::api::PutRequest request; + request.set_time(time); + request.set_value(value.data(), value.size()); + request.set_tid(tid); + request.set_pid(pid); + request.mutable_dimensions()->Swap(dimensions); ::openmldb::api::PutResponse response; bool ok = client_.SendRequest(&::openmldb::api::TabletServer_Stub::Put, &request, &response, FLAGS_request_timeout_ms, 1); diff --git a/src/client/tablet_client.h b/src/client/tablet_client.h index f955040a157..f9dfd897361 100644 --- a/src/client/tablet_client.h +++ b/src/client/tablet_client.h @@ -76,6 +76,9 @@ class TabletClient : public Client { bool Put(uint32_t tid, uint32_t pid, uint64_t time, const std::string& value, const std::vector>& dimensions); + bool Put(uint32_t tid, uint32_t pid, uint64_t time, const base::Slice& value, + ::google::protobuf::RepeatedPtrField<::openmldb::api::Dimension>* dimensions); + bool Get(uint32_t tid, uint32_t pid, const std::string& pk, uint64_t time, std::string& value, // NOLINT uint64_t& ts, // NOLINT std::string& msg); ; // NOLINT diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 707338a6a6c..ccb7cc3cd4a 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -1433,6 +1433,68 @@ bool SQLClusterRouter::ExecuteInsert(const std::string& db, const std::string& s } } +bool SQLClusterRouter::ExecuteInsert(const std::string& db, const std::string& name, int tid, int partition_num, + hybridse::sdk::ByteArrayPtr dimension, int dimension_len, + hybridse::sdk::ByteArrayPtr value, int len, hybridse::sdk::Status* status) { + RET_FALSE_IF_NULL_AND_WARN(status, "output status is nullptr"); + if (dimension == nullptr || dimension_len <= 0 || value == nullptr || len <= 0 || partition_num <= 0) { + *status = {StatusCode::kCmdError, "invalid parameter"}; + return false; + } + std::vector> tablets; + bool ret = cluster_sdk_->GetTablet(db, name, &tablets); + if (!ret || tablets.empty()) { + status->msg = "fail to get table " + name + " tablet"; + return false; + } + std::map> dimensions_map; + int pos = 0; + while (pos < dimension_len) { + int idx = *(reinterpret_cast(dimension + pos)); + pos += sizeof(int); + int key_len = *(reinterpret_cast(dimension + pos)); + pos += sizeof(int); + base::Slice key(dimension + pos, key_len); + uint32_t pid = static_cast(::openmldb::base::hash64(key.data(), key.size()) % partition_num); + auto it = dimensions_map.find(pid); + if (it == dimensions_map.end()) { + it = dimensions_map.emplace(pid, ::google::protobuf::RepeatedPtrField<::openmldb::api::Dimension>()).first; + } + auto dim = it->second.Add(); + dim->set_idx(idx); + dim->set_key(key.data(), key.size()); + pos += key_len; + } + base::Slice row_value(value, len); + uint64_t cur_ts = ::baidu::common::timer::get_micros() / 1000; + for (auto& kv : dimensions_map) { + uint32_t pid = kv.first; + if (pid < tablets.size()) { + auto tablet = tablets[pid]; + if (tablet) { + auto client = tablet->GetClient(); + if (client) { + DLOG(INFO) << "put data to endpoint " << client->GetEndpoint() << " with dimensions size " + << kv.second.size(); + bool ret = client->Put(tid, pid, cur_ts, row_value, &kv.second); + if (!ret) { + SET_STATUS_AND_WARN(status, StatusCode::kCmdError, + "INSERT failed, tid " + std::to_string(tid) + + ". Note that data might have been partially inserted. " + "You are encouraged to perform DELETE to remove any partially " + "inserted data before trying INSERT again."); + return false; + } + continue; + } + } + } + SET_STATUS_AND_WARN(status, StatusCode::kCmdError, "fail to get tablet client. pid " + std::to_string(pid)); + return false; + } + return true; +} + bool SQLClusterRouter::GetSQLPlan(const std::string& sql, ::hybridse::node::NodeManager* nm, ::hybridse::node::PlanNodeList* plan) { if (nm == NULL || plan == NULL) return false; diff --git a/src/sdk/sql_cluster_router.h b/src/sdk/sql_cluster_router.h index 033bda8d090..d2e6b52b790 100644 --- a/src/sdk/sql_cluster_router.h +++ b/src/sdk/sql_cluster_router.h @@ -84,6 +84,10 @@ class SQLClusterRouter : public SQLRouter { bool ExecuteInsert(const std::string& db, const std::string& sql, std::shared_ptr rows, hybridse::sdk::Status* status) override; + bool ExecuteInsert(const std::string& db, const std::string& name, int tid, int partition_num, + hybridse::sdk::ByteArrayPtr dimension, int dimension_len, + hybridse::sdk::ByteArrayPtr value, int len, hybridse::sdk::Status* status) override; + bool ExecuteDelete(std::shared_ptr row, hybridse::sdk::Status* status) override; std::shared_ptr GetTableReader() override; diff --git a/src/sdk/sql_insert_row.h b/src/sdk/sql_insert_row.h index bee50291b3c..ded1c824e19 100644 --- a/src/sdk/sql_insert_row.h +++ b/src/sdk/sql_insert_row.h @@ -29,12 +29,78 @@ #include "codec/fe_row_codec.h" #include "node/sql_node.h" #include "proto/name_server.pb.h" +#include "schema/schema_adapter.h" #include "sdk/base.h" namespace openmldb::sdk { typedef std::shared_ptr>> DefaultValueMap; +// used in java to build InsertPreparedStatementCache +class DefaultValueContainer { + public: + explicit DefaultValueContainer(const DefaultValueMap& default_map) : default_map_(default_map) {} + + std::vector GetAllPosition() { + std::vector vec; + for (const auto& kv : *default_map_) { + vec.push_back(kv.first); + } + return vec; + } + + bool IsValid(int idx) { + return idx >= 0 && idx < Size(); + } + + int Size() { + return default_map_->size(); + } + + bool IsNull(int idx) { + return default_map_->at(idx)->IsNull(); + } + + bool GetBool(int idx) { + return default_map_->at(idx)->GetBool(); + } + + int16_t GetSmallInt(int idx) { + return default_map_->at(idx)->GetSmallInt(); + } + + int32_t GetInt(int idx) { + return default_map_->at(idx)->GetInt(); + } + + int64_t GetBigInt(int idx) { + return default_map_->at(idx)->GetLong(); + } + + float GetFloat(int idx) { + return default_map_->at(idx)->GetFloat(); + } + + double GetDouble(int idx) { + return default_map_->at(idx)->GetDouble(); + } + + int32_t GetDate(int idx) { + return default_map_->at(idx)->GetInt(); + } + + int64_t GetTimeStamp(int idx) { + return default_map_->at(idx)->GetLong(); + } + + std::string GetString(int idx) { + return default_map_->at(idx)->GetStr(); + } + + private: + DefaultValueMap default_map_; +}; + class SQLInsertRow { public: SQLInsertRow(std::shared_ptr<::openmldb::nameserver::TableInfo> table_info, @@ -81,6 +147,14 @@ class SQLInsertRow { const std::vector& stmt_column_idx_in_table, const std::shared_ptr<::hybridse::sdk::Schema>& schema); + std::shared_ptr GetDefaultValue() { + return std::make_shared(default_map_); + } + + ::openmldb::nameserver::TableInfo GetTableInfo() { + return *table_info_; + } + private: bool MakeDefault(); void PackDimension(const std::string& val); diff --git a/src/sdk/sql_router.h b/src/sdk/sql_router.h index aa12b6dff56..f88cc0b00f9 100644 --- a/src/sdk/sql_router.h +++ b/src/sdk/sql_router.h @@ -110,6 +110,10 @@ class SQLRouter { virtual bool ExecuteInsert(const std::string& db, const std::string& sql, std::shared_ptr row, hybridse::sdk::Status* status) = 0; + virtual bool ExecuteInsert(const std::string& db, const std::string& name, int tid, int partition_num, + hybridse::sdk::ByteArrayPtr dimension, int dimension_len, + hybridse::sdk::ByteArrayPtr value, int len, hybridse::sdk::Status* status) = 0; + virtual bool ExecuteDelete(std::shared_ptr row, hybridse::sdk::Status* status) = 0; virtual std::shared_ptr GetTableReader() = 0; diff --git a/src/sdk/sql_router_sdk.i b/src/sdk/sql_router_sdk.i index 1146aeba42e..22ee63b3e6d 100644 --- a/src/sdk/sql_router_sdk.i +++ b/src/sdk/sql_router_sdk.i @@ -65,6 +65,7 @@ %shared_ptr(openmldb::sdk::QueryFuture); %shared_ptr(openmldb::sdk::TableReader); %shared_ptr(hybridse::node::CreateTableLikeClause); +%shared_ptr(openmldb::sdk::DefaultValueContainer); %template(VectorUint32) std::vector; %template(VectorString) std::vector; @@ -93,6 +94,7 @@ using openmldb::sdk::ExplainInfo; using hybridse::sdk::ProcedureInfo; using openmldb::sdk::QueryFuture; using openmldb::sdk::TableReader; +using openmldb::sdk::DefaultValueContainer; %} %include "sdk/sql_router.h" From c2b7817fc80337126b62ef091d922da07dca5f46 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Wed, 15 Nov 2023 10:11:44 +0800 Subject: [PATCH 095/111] feat(online): support last join (window) (#3565) --- cases/query/last_join_subquery_window.yml | 406 ++++++++++++++++++ .../toydb/src/tablet/tablet_catalog.cc | 33 +- .../toydb/src/tablet/tablet_catalog.h | 5 +- .../src/testing/toydb_engine_test_base.cc | 21 +- hybridse/include/codec/row.h | 2 +- hybridse/include/codec/row_iterator.h | 9 +- hybridse/include/codec/row_list.h | 2 +- hybridse/include/vm/catalog.h | 1 + hybridse/include/vm/mem_catalog.h | 9 +- hybridse/include/vm/physical_op.h | 47 +- .../passes/physical/batch_request_optimize.cc | 21 +- .../physical/group_and_sort_optimized.cc | 84 +++- .../physical/group_and_sort_optimized.h | 13 + .../physical/transform_up_physical_pass.h | 1 - hybridse/src/plan/planner.cc | 2 +- hybridse/src/testing/engine_test_base.cc | 2 + hybridse/src/testing/engine_test_base.h | 3 +- hybridse/src/vm/catalog_wrapper.cc | 219 ++++++++++ hybridse/src/vm/catalog_wrapper.h | 292 +++++++++++++ hybridse/src/vm/engine.cc | 2 +- hybridse/src/vm/generator.cc | 1 + hybridse/src/vm/generator.h | 35 +- hybridse/src/vm/internal/node_helper.cc | 62 +++ hybridse/src/vm/internal/node_helper.h | 7 + hybridse/src/vm/mem_catalog.cc | 2 - hybridse/src/vm/runner.cc | 138 ++++-- hybridse/src/vm/runner.h | 68 +-- hybridse/src/vm/transform.cc | 123 ++---- hybridse/src/vm/transform.h | 9 - src/sdk/sql_sdk_test.h | 2 + 30 files changed, 1351 insertions(+), 270 deletions(-) create mode 100644 cases/query/last_join_subquery_window.yml diff --git a/cases/query/last_join_subquery_window.yml b/cases/query/last_join_subquery_window.yml new file mode 100644 index 00000000000..81787f87e67 --- /dev/null +++ b/cases/query/last_join_subquery_window.yml @@ -0,0 +1,406 @@ +cases: + # =================================================================== + # LAST JOIN (WINDOW) + # =================================================================== + - id: 0 + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,1590738989000] + - ["bb",3,1590738990000] + - ["cc",4,1590738991000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp"] + indexs: ["index1:c1:c4", "index2:c2:c4"] + rows: + - ["aa",1, 1590738989000] + - ["bb",3, 1590738990000] + - ["dd",4, 1590738991000] + sql: | + select t1.c1, tx.c1 as c1r, tx.c2 as c2r, agg + from t1 last join ( + select c1, c2, count(c4) over w as agg + from t2 + window w as ( + partition by c1 order by c4 + rows between 1 preceding and current row + ) + ) tx + on t1.c2 = tx.c2 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_REQUEST_ROW, partition_keys=(), orders=(ASC), rows=(c4, 1 PRECEDING, 0 CURRENT), index_keys=(c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#5)) + SIMPLE_PROJECT(sources=(#5 -> t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(c1, c2, agg)) + REQUEST_JOIN(type=kJoinTypeConcat) + SIMPLE_PROJECT(sources=(c1, c2)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_REQUEST_ROW, partition_keys=(), orders=(ASC), rows=(c4, 1 PRECEDING, 0 CURRENT), index_keys=(c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + expect: + columns: ["c1 string", "c1r string", "c2r int", "agg int64"] + order: c1 + data: | + aa, NULL, NULL, NULL + bb, bb, 3, 1 + cc, dd, 4, 1 + - id: 1 + desc: last join window(attributes) + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,2000] + - ["bb",3,2000] + - ["cc",4,2000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp", "val int"] + indexs: ["index1:c1:c4", "index2:c2:c4"] + rows: + - ["aa",1, 1000, 1] + - ["aa",4, 2000, 2] + - ["bb",3, 3000, 3] + - ["dd",4, 8000, 4] + - ["dd",4, 7000, 5] + - ["dd",4, 9000, 6] + sql: | + select t1.c1, tx.c1 as c1r, tx.c2 as c2r, agg1, agg2 + from t1 last join ( + select c1, c2, c4, + count(c4) over w as agg1, + max(val) over w as agg2 + from t2 + window w as ( + partition by c1 order by c4 + rows between 2 preceding and current row + exclude current_row + ) + ) tx + order by tx.c4 + on t1.c2 = tx.c2 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg1, agg2)) + REQUEST_JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_REQUEST_ROW, EXCLUDE_CURRENT_ROW, partition_keys=(), orders=(ASC), rows=(c4, 2 PRECEDING, 0 CURRENT), index_keys=(c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg1, agg2)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#5)) + SIMPLE_PROJECT(sources=(#5 -> t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(c1, c2, c4, agg1, agg2)) + REQUEST_JOIN(type=kJoinTypeConcat) + SIMPLE_PROJECT(sources=(c1, c2, c4)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_REQUEST_ROW, EXCLUDE_CURRENT_ROW, partition_keys=(), orders=(ASC), rows=(c4, 2 PRECEDING, 0 CURRENT), index_keys=(c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + expect: + columns: ["c1 string", "c1r string", "c2r int", "agg1 int64", 'agg2 int'] + order: c1 + data: | + aa, NULL, NULL, NULL, NULL + bb, bb, 3, 0, NULL + cc, dd, 4, 2, 5 + - id: 2 + # issue on join to (multiple windows), fix later + mode: batch-unsupport + desc: last join multiple windows + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,2000] + - ["bb",3,2000] + - ["cc",4,2000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp", "val int", "gp int"] + indexs: ["index1:c1:c4", "index2:c2:c4", "index3:gp:c4"] + rows: + - ["aa",1, 1000, 1, 0] + - ["aa",4, 2000, 2, 0] + - ["bb",3, 3000, 3, 1] + - ["dd",4, 8000, 4, 1] + - ["dd",4, 7000, 5, 1] + - ["dd",4, 9000, 6, 1] + sql: | + select t1.c1, tx.c1 as c1r, tx.c2 as c2r, agg1, agg2, agg3 + from t1 last join ( + select c1, c2, c4, + count(c4) over w1 as agg1, + max(val) over w1 as agg2, + min(val) over w2 as agg3 + from t2 + window w1 as ( + partition by c1 order by c4 + rows between 2 preceding and current row + exclude current_row + ), + w2 as ( + partition by gp order by c4 + rows_range between 3s preceding and current row + exclude current_time + ) + ) tx + order by tx.c4 + on t1.c2 = tx.c2 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg1, agg2, agg3)) + REQUEST_JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(c1, c2, c4, agg1, agg2, agg3)) + REQUEST_JOIN(type=kJoinTypeConcat) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_REQUEST_ROW, EXCLUDE_CURRENT_ROW, partition_keys=(), orders=(ASC), rows=(c4, 2 PRECEDING, 0 CURRENT), index_keys=(c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_REQUEST_ROW, EXCLUDE_CURRENT_TIME, partition_keys=(), orders=(ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=(gp)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t2, index=index3) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg1, agg2, agg3)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#5)) + SIMPLE_PROJECT(sources=(#5 -> t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(c1, c2, c4, agg1, agg2, agg3)) + REQUEST_JOIN(type=kJoinTypeConcat) + REQUEST_JOIN(type=kJoinTypeConcat) + SIMPLE_PROJECT(sources=(c1, c2, c4)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_REQUEST_ROW, EXCLUDE_CURRENT_ROW, partition_keys=(), orders=(ASC), rows=(c4, 2 PRECEDING, 0 CURRENT), index_keys=(c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_REQUEST_ROW, EXCLUDE_CURRENT_TIME, partition_keys=(), orders=(ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=(gp)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t2, index=index3) + expect: + columns: ["c1 string", "c1r string", "c2r int", "agg1 int64", 'agg2 int', 'agg3 int'] + order: c1 + data: | + aa, NULL, NULL, NULL, NULL, NULL + bb, bb, 3, 0, NULL, NULL + cc, dd, 4, 2, 5, 4 + - id: 3 + desc: last join window union + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,2000] + - ["bb",3,2000] + - ["cc",4,2000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp", "val int"] + indexs: ["index1:c1:c4", "index2:c2:c4" ] + rows: + - ["aa",1, 1000, 1] + - ["aa",4, 2000, 2] + - ["bb",3, 3000, 3] + - ["dd",4, 8000, 4] + - ["dd",4, 9000, 6] + - name: t3 + columns: ["c1 string", "c2 int", "c4 timestamp", "val int"] + indexs: ["index1:c1:c4", "index2:c2:c4"] + rows: + - ["aa", 2, 1000, 5] + - ["bb", 3, 2000, 8] + - ["dd", 4, 4000, 12] + - ["dd", 4, 7000, 10] + - ["dd", 4, 6000, 11] + - ["dd", 4, 10000, 100] + sql: | + select t1.c1, tx.c1 as c1r, tx.c2 as c2r, agg1, agg2 + from t1 last join ( + select c1, c2, c4, + count(c4) over w1 as agg1, + max(val) over w1 as agg2, + from t2 + window w1 as ( + union t3 + partition by c1 order by c4 + rows_range between 3s preceding and current row + instance_not_in_window exclude current_row + ) + ) tx + order by tx.c4 + on t1.c2 = tx.c2 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg1, agg2)) + REQUEST_JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_CURRENT_ROW, INSTANCE_NOT_IN_WINDOW, partition_keys=(c1), orders=(c4 ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=) + +-UNION(partition_keys=(), orders=(ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=(c1)) + RENAME(name=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(table=t2) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg1, agg2)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#5)) + SIMPLE_PROJECT(sources=(#5 -> t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(c1, c2, c4, agg1, agg2)) + REQUEST_JOIN(type=kJoinTypeConcat) + SIMPLE_PROJECT(sources=(c1, c2, c4)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_CURRENT_ROW, INSTANCE_NOT_IN_WINDOW, partition_keys=(c1), orders=(c4 ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=) + +-UNION(partition_keys=(), orders=(ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=(c1)) + RENAME(name=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(table=t2) + expect: + columns: ["c1 string", "c1r string", "c2r int", "agg1 int64", 'agg2 int'] + order: c1 + data: | + aa, NULL, NULL, NULL, NULL + bb, bb, 3, 1, 8 + cc, dd, 4, 2, 11 + - id: 4 + desc: last join mulitple window union + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2,2000] + - ["bb",3,2000] + - ["cc",4,2000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp", "val int"] + indexs: ["index1:c1:c4", "index2:c2:c4" ] + rows: + - ["aa",1, 1000, 1] + - ["aa",4, 2000, 2] + - ["bb",3, 3000, 3] + - ["dd",4, 8000, 4] + - ["dd",4, 9000, 6] + - name: t3 + columns: ["c1 string", "c2 int", "c4 timestamp", "val int"] + indexs: ["index1:c1:c4", "index2:c2:c4"] + rows: + - ["aa", 2, 1000, 5] + - ["bb", 3, 2000, 8] + - ["dd", 4, 4000, 12] + - ["dd", 4, 7000, 10] + - ["dd", 4, 6000, 11] + - ["dd", 4, 10000, 100] + sql: | + select t1.c1, tx.c1 as c1r, tx.c2 as c2r, agg1, agg2, agg3 + from t1 last join ( + select c1, c2, c4, + count(c4) over w1 as agg1, + max(val) over w1 as agg2, + min(val) over w2 as agg3 + from t2 + window w1 as ( + union t3 + partition by c1 order by c4 + rows_range between 3s preceding and current row + instance_not_in_window exclude current_row + ), + w2 as ( + union t3 + partition by c1 order by c4 + rows between 2 preceding and current row + instance_not_in_window + ) + ) tx + order by tx.c4 + on t1.c2 = tx.c2 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg1, agg2, agg3)) + REQUEST_JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(c1, c2, c4, agg1, agg2, agg3)) + REQUEST_JOIN(type=kJoinTypeConcat) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_CURRENT_ROW, INSTANCE_NOT_IN_WINDOW, partition_keys=(c1), orders=(c4 ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=) + +-UNION(partition_keys=(), orders=(ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=(c1)) + RENAME(name=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(table=t2) + PROJECT(type=Aggregation) + REQUEST_UNION(INSTANCE_NOT_IN_WINDOW, partition_keys=(c1), orders=(c4 ASC), rows=(c4, 2 PRECEDING, 0 CURRENT), index_keys=) + +-UNION(partition_keys=(), orders=(ASC), rows=(c4, 2 PRECEDING, 0 CURRENT), index_keys=(c1)) + RENAME(name=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(table=t2) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1r, tx.c2 -> c2r, agg1, agg2, agg3)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(#5)) + SIMPLE_PROJECT(sources=(#5 -> t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(c1, c2, c4, agg1, agg2, agg3)) + REQUEST_JOIN(type=kJoinTypeConcat) + REQUEST_JOIN(type=kJoinTypeConcat) + SIMPLE_PROJECT(sources=(c1, c2, c4)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + PROJECT(type=Aggregation) + REQUEST_UNION(EXCLUDE_CURRENT_ROW, INSTANCE_NOT_IN_WINDOW, partition_keys=(c1), orders=(c4 ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=) + +-UNION(partition_keys=(), orders=(ASC), range=(c4, 3000 PRECEDING, 0 CURRENT), index_keys=(c1)) + RENAME(name=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(table=t2) + PROJECT(type=Aggregation) + REQUEST_UNION(INSTANCE_NOT_IN_WINDOW, partition_keys=(c1), orders=(c4 ASC), rows=(c4, 2 PRECEDING, 0 CURRENT), index_keys=) + +-UNION(partition_keys=(), orders=(ASC), rows=(c4, 2 PRECEDING, 0 CURRENT), index_keys=(c1)) + RENAME(name=t2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(table=t2) + expect: + columns: ["c1 string", "c1r string", "c2r int", "agg1 int64", 'agg2 int', "agg3 int"] + order: c1 + data: | + aa, NULL, NULL, NULL, NULL, NULL + bb, bb, 3, 1, 8, 3 + cc, dd, 4, 2, 11, 6 diff --git a/hybridse/examples/toydb/src/tablet/tablet_catalog.cc b/hybridse/examples/toydb/src/tablet/tablet_catalog.cc index feeb750ab6f..71c2f34f407 100644 --- a/hybridse/examples/toydb/src/tablet/tablet_catalog.cc +++ b/hybridse/examples/toydb/src/tablet/tablet_catalog.cc @@ -136,22 +136,6 @@ RowIterator* TabletTableHandler::GetRawIterator() { return new storage::FullTableIterator(table_->GetSegments(), table_->GetSegCnt(), table_); } -const uint64_t TabletTableHandler::GetCount() { - auto iter = GetIterator(); - uint64_t cnt = 0; - while (iter->Valid()) { - iter->Next(); - cnt++; - } - return cnt; -} -Row TabletTableHandler::At(uint64_t pos) { - auto iter = GetIterator(); - while (pos-- > 0 && iter->Valid()) { - iter->Next(); - } - return iter->Valid() ? iter->GetValue() : Row(); -} TabletCatalog::TabletCatalog() : tables_(), db_() {} @@ -249,22 +233,6 @@ std::unique_ptr TabletSegmentHandler::GetWindowIterator( const std::string& idx_name) { return std::unique_ptr(); } -const uint64_t TabletSegmentHandler::GetCount() { - auto iter = GetIterator(); - uint64_t cnt = 0; - while (iter->Valid()) { - cnt++; - iter->Next(); - } - return cnt; -} -Row TabletSegmentHandler::At(uint64_t pos) { - auto iter = GetIterator(); - while (pos-- > 0 && iter->Valid()) { - iter->Next(); - } - return iter->Valid() ? iter->GetValue() : Row(); -} const uint64_t TabletPartitionHandler::GetCount() { auto iter = GetWindowIterator(); @@ -275,5 +243,6 @@ const uint64_t TabletPartitionHandler::GetCount() { } return cnt; } + } // namespace tablet } // namespace hybridse diff --git a/hybridse/examples/toydb/src/tablet/tablet_catalog.h b/hybridse/examples/toydb/src/tablet/tablet_catalog.h index fa41140a495..dd5bea22c51 100644 --- a/hybridse/examples/toydb/src/tablet/tablet_catalog.h +++ b/hybridse/examples/toydb/src/tablet/tablet_catalog.h @@ -68,8 +68,6 @@ class TabletSegmentHandler : public TableHandler { std::unique_ptr GetIterator() override; RowIterator* GetRawIterator() override; std::unique_ptr GetWindowIterator(const std::string& idx_name) override; - const uint64_t GetCount() override; - Row At(uint64_t pos) override; const std::string GetHandlerTypeName() override { return "TabletSegmentHandler"; } @@ -104,6 +102,7 @@ class TabletPartitionHandler std::unique_ptr GetWindowIterator() override { return table_handler_->GetWindowIterator(index_name_); } + const uint64_t GetCount() override; std::shared_ptr GetSegment(const std::string& key) override { @@ -152,8 +151,6 @@ class TabletTableHandler RowIterator* GetRawIterator() override; std::unique_ptr GetWindowIterator( const std::string& idx_name); - virtual const uint64_t GetCount(); - Row At(uint64_t pos) override; virtual std::shared_ptr GetPartition( const std::string& index_name) { diff --git a/hybridse/examples/toydb/src/testing/toydb_engine_test_base.cc b/hybridse/examples/toydb/src/testing/toydb_engine_test_base.cc index fcaa71d8373..35a595b431e 100644 --- a/hybridse/examples/toydb/src/testing/toydb_engine_test_base.cc +++ b/hybridse/examples/toydb/src/testing/toydb_engine_test_base.cc @@ -15,8 +15,9 @@ */ #include "testing/toydb_engine_test_base.h" + +#include "absl/strings/str_join.h" #include "gtest/gtest.h" -#include "gtest/internal/gtest-param-util.h" using namespace llvm; // NOLINT (build/namespaces) using namespace llvm::orc; // NOLINT (build/namespaces) @@ -141,18 +142,12 @@ std::shared_ptr BuildOnePkTableStorage( } return catalog; } -void BatchRequestEngineCheckWithCommonColumnIndices( - const SqlCase& sql_case, const EngineOptions options, - const std::set& common_column_indices) { - std::ostringstream oss; - for (size_t index : common_column_indices) { - oss << index << ","; - } - LOG(INFO) << "BatchRequestEngineCheckWithCommonColumnIndices: " - "common_column_indices = [" - << oss.str() << "]"; - ToydbBatchRequestEngineTestRunner engine_test(sql_case, options, - common_column_indices); +// Run check with common column index info +void BatchRequestEngineCheckWithCommonColumnIndices(const SqlCase& sql_case, const EngineOptions options, + const std::set& common_column_indices) { + LOG(INFO) << "BatchRequestEngineCheckWithCommonColumnIndices: common_column_indices = [" + << absl::StrJoin(common_column_indices, ",") << "]"; + ToydbBatchRequestEngineTestRunner engine_test(sql_case, options, common_column_indices); engine_test.RunCheck(); } diff --git a/hybridse/include/codec/row.h b/hybridse/include/codec/row.h index cd6abb0a3a1..69158d41e85 100644 --- a/hybridse/include/codec/row.h +++ b/hybridse/include/codec/row.h @@ -54,7 +54,7 @@ class Row { inline int32_t size() const { return slice_.size(); } inline int32_t size(int32_t pos) const { - return 0 == pos ? slice_.size() : slices_[pos - 1].size(); + return 0 == pos ? slice_.size() : slices_.at(pos - 1).size(); } // Return true if the length of the referenced data is zero diff --git a/hybridse/include/codec/row_iterator.h b/hybridse/include/codec/row_iterator.h index 2075918666c..fa60d21a37e 100644 --- a/hybridse/include/codec/row_iterator.h +++ b/hybridse/include/codec/row_iterator.h @@ -71,7 +71,14 @@ class WindowIterator { virtual bool Valid() = 0; /// Return the RowIterator of current segment /// of dataset if Valid() return `true`. - virtual std::unique_ptr GetValue() = 0; + virtual std::unique_ptr GetValue() { + auto p = GetRawValue(); + if (!p) { + return nullptr; + } + + return std::unique_ptr(p); + } /// Return the RowIterator of current segment /// of dataset if Valid() return `true`. virtual RowIterator *GetRawValue() = 0; diff --git a/hybridse/include/codec/row_list.h b/hybridse/include/codec/row_list.h index b32ad24c3eb..cfc83fae6a1 100644 --- a/hybridse/include/codec/row_list.h +++ b/hybridse/include/codec/row_list.h @@ -76,7 +76,7 @@ class ListV { virtual const uint64_t GetCount() { auto iter = GetIterator(); uint64_t cnt = 0; - while (iter->Valid()) { + while (iter && iter->Valid()) { iter->Next(); cnt++; } diff --git a/hybridse/include/vm/catalog.h b/hybridse/include/vm/catalog.h index 30e68316606..70a422f8924 100644 --- a/hybridse/include/vm/catalog.h +++ b/hybridse/include/vm/catalog.h @@ -217,6 +217,7 @@ class TableHandler : public DataHandler { virtual ~TableHandler() {} /// Return table column Types information. + /// TODO: rm it, never used virtual const Types& GetTypes() = 0; /// Return the index information diff --git a/hybridse/include/vm/mem_catalog.h b/hybridse/include/vm/mem_catalog.h index 2fc5df4960c..dffb17a8af1 100644 --- a/hybridse/include/vm/mem_catalog.h +++ b/hybridse/include/vm/mem_catalog.h @@ -25,8 +25,6 @@ #include #include #include -#include "base/fe_slice.h" -#include "codec/list_iterator_codec.h" #include "glog/logging.h" #include "vm/catalog.h" @@ -674,6 +672,7 @@ class MemPartitionHandler IndexHint index_hint_; OrderType order_type_; }; + class ConcatTableHandler : public MemTimeTableHandler { public: ConcatTableHandler(std::shared_ptr left, size_t left_slices, @@ -692,19 +691,19 @@ class ConcatTableHandler : public MemTimeTableHandler { status_ = SyncValue(); return MemTimeTableHandler::At(pos); } - std::unique_ptr GetIterator() { + std::unique_ptr GetIterator() override { if (status_.isRunning()) { status_ = SyncValue(); } return MemTimeTableHandler::GetIterator(); } - RowIterator* GetRawIterator() { + RowIterator* GetRawIterator() override { if (status_.isRunning()) { status_ = SyncValue(); } return MemTimeTableHandler::GetRawIterator(); } - virtual const uint64_t GetCount() { + const uint64_t GetCount() override { if (status_.isRunning()) { status_ = SyncValue(); } diff --git a/hybridse/include/vm/physical_op.h b/hybridse/include/vm/physical_op.h index d2fdafb5349..0701bdda3a6 100644 --- a/hybridse/include/vm/physical_op.h +++ b/hybridse/include/vm/physical_op.h @@ -785,7 +785,11 @@ class PhysicalAggregationNode : public PhysicalProjectNode { public: PhysicalAggregationNode(PhysicalOpNode *node, const ColumnProjects &project, const node::ExprNode *condition) : PhysicalProjectNode(node, kAggregation, project, true), having_condition_(condition) { - output_type_ = kSchemaTypeRow; + if (node->GetOutputType() == kSchemaTypeGroup) { + output_type_ = kSchemaTypeGroup; + } else { + output_type_ = kSchemaTypeRow; + } fn_infos_.push_back(&having_condition_.fn_info()); } virtual ~PhysicalAggregationNode() {} @@ -1065,7 +1069,7 @@ class RequestWindowUnionList { RequestWindowUnionList() : window_unions_() {} virtual ~RequestWindowUnionList() {} void AddWindowUnion(PhysicalOpNode *node, const RequestWindowOp &window) { - window_unions_.push_back(std::make_pair(node, window)); + window_unions_.emplace_back(node, window); } const PhysicalOpNode *GetKey(uint32_t index) { auto iter = window_unions_.begin(); @@ -1415,7 +1419,7 @@ class PhysicalRequestUnionNode : public PhysicalBinaryNode { instance_not_in_window_(false), exclude_current_time_(false), output_request_row_(true) { - output_type_ = kSchemaTypeTable; + InitOuptput(); fn_infos_.push_back(&window_.partition_.fn_info()); fn_infos_.push_back(&window_.index_key_.fn_info()); @@ -1427,7 +1431,7 @@ class PhysicalRequestUnionNode : public PhysicalBinaryNode { instance_not_in_window_(w_ptr->instance_not_in_window()), exclude_current_time_(w_ptr->exclude_current_time()), output_request_row_(true) { - output_type_ = kSchemaTypeTable; + InitOuptput(); fn_infos_.push_back(&window_.partition_.fn_info()); fn_infos_.push_back(&window_.sort_.fn_info()); @@ -1443,7 +1447,7 @@ class PhysicalRequestUnionNode : public PhysicalBinaryNode { instance_not_in_window_(instance_not_in_window), exclude_current_time_(exclude_current_time), output_request_row_(output_request_row) { - output_type_ = kSchemaTypeTable; + InitOuptput(); fn_infos_.push_back(&window_.partition_.fn_info()); fn_infos_.push_back(&window_.sort_.fn_info()); @@ -1455,7 +1459,8 @@ class PhysicalRequestUnionNode : public PhysicalBinaryNode { virtual void Print(std::ostream &output, const std::string &tab) const; const bool Valid() { return true; } static PhysicalRequestUnionNode *CastFrom(PhysicalOpNode *node); - bool AddWindowUnion(PhysicalOpNode *node) { + bool AddWindowUnion(PhysicalOpNode *node) { return AddWindowUnion(node, window_); } + bool AddWindowUnion(PhysicalOpNode *node, const RequestWindowOp& window) { if (nullptr == node) { LOG(WARNING) << "Fail to add window union : table is null"; return false; @@ -1472,9 +1477,8 @@ class PhysicalRequestUnionNode : public PhysicalBinaryNode { << "Union Table and window input schema aren't consistent"; return false; } - window_unions_.AddWindowUnion(node, window_); - RequestWindowOp &window_union = - window_unions_.window_unions_.back().second; + window_unions_.AddWindowUnion(node, window); + RequestWindowOp &window_union = window_unions_.window_unions_.back().second; fn_infos_.push_back(&window_union.partition_.fn_info()); fn_infos_.push_back(&window_union.sort_.fn_info()); fn_infos_.push_back(&window_union.range_.fn_info()); @@ -1484,11 +1488,10 @@ class PhysicalRequestUnionNode : public PhysicalBinaryNode { std::vector GetDependents() const override; - const bool instance_not_in_window() const { - return instance_not_in_window_; - } - const bool exclude_current_time() const { return exclude_current_time_; } - const bool output_request_row() const { return output_request_row_; } + bool instance_not_in_window() const { return instance_not_in_window_; } + bool exclude_current_time() const { return exclude_current_time_; } + bool output_request_row() const { return output_request_row_; } + void set_output_request_row(bool flag) { output_request_row_ = flag; } const RequestWindowOp &window() const { return window_; } const RequestWindowUnionList &window_unions() const { return window_unions_; @@ -1506,10 +1509,20 @@ class PhysicalRequestUnionNode : public PhysicalBinaryNode { } RequestWindowOp window_; - const bool instance_not_in_window_; - const bool exclude_current_time_; - const bool output_request_row_; + bool instance_not_in_window_; + bool exclude_current_time_; + bool output_request_row_; RequestWindowUnionList window_unions_; + + private: + void InitOuptput() { + auto left = GetProducer(0); + if (left->GetOutputType() == kSchemaTypeRow) { + output_type_ = kSchemaTypeTable; + } else { + output_type_ = kSchemaTypeGroup; + } + } }; class PhysicalRequestAggUnionNode : public PhysicalOpNode { diff --git a/hybridse/src/passes/physical/batch_request_optimize.cc b/hybridse/src/passes/physical/batch_request_optimize.cc index 52488e6a981..86fdfee92c5 100644 --- a/hybridse/src/passes/physical/batch_request_optimize.cc +++ b/hybridse/src/passes/physical/batch_request_optimize.cc @@ -269,6 +269,7 @@ static Status UpdateProjectExpr( return replacer.Replace(expr->DeepCopy(ctx->node_manager()), output); } +// simplify simple project, remove orphan descendant producer nodes static Status CreateSimplifiedProject(PhysicalPlanContext* ctx, PhysicalOpNode* input, const ColumnProjects& projects, @@ -279,8 +280,7 @@ static Status CreateSimplifiedProject(PhysicalPlanContext* ctx, can_project = false; for (size_t i = 0; i < cur_input->producers().size(); ++i) { auto cand_input = cur_input->GetProducer(i); - if (cand_input->GetOutputType() != - PhysicalSchemaType::kSchemaTypeRow) { + if (cand_input->GetOutputType() != PhysicalSchemaType::kSchemaTypeRow) { continue; } bool is_valid = true; @@ -949,21 +949,16 @@ Status CommonColumnOptimize::ProcessJoin(PhysicalPlanContext* ctx, } } else if (is_non_common_join) { // join only depend on non-common left part - if (left_state->non_common_op == join_op->GetProducer(0) && - right == join_op->GetProducer(1)) { + if (left_state->non_common_op == join_op->GetProducer(0) && right == join_op->GetProducer(1)) { state->common_op = nullptr; state->non_common_op = join_op; } else { PhysicalRequestJoinNode* new_join = nullptr; - CHECK_STATUS(ctx->CreateOp( - &new_join, left_state->non_common_op, right, join_op->join(), - join_op->output_right_only())); - CHECK_STATUS(ReplaceComponentExpr( - join_op->join(), join_op->joined_schemas_ctx(), - new_join->joined_schemas_ctx(), ctx->node_manager(), - &new_join->join_)); - state->common_op = - join_op->output_right_only() ? nullptr : left_state->common_op; + CHECK_STATUS(ctx->CreateOp(&new_join, left_state->non_common_op, right, + join_op->join(), join_op->output_right_only())); + CHECK_STATUS(ReplaceComponentExpr(join_op->join(), join_op->joined_schemas_ctx(), + new_join->joined_schemas_ctx(), ctx->node_manager(), &new_join->join_)); + state->common_op = join_op->output_right_only() ? nullptr : left_state->common_op; state->non_common_op = new_join; if (!join_op->output_right_only()) { for (size_t left_idx : left_state->common_column_indices) { diff --git a/hybridse/src/passes/physical/group_and_sort_optimized.cc b/hybridse/src/passes/physical/group_and_sort_optimized.cc index ae333b6af47..2d51b336167 100644 --- a/hybridse/src/passes/physical/group_and_sort_optimized.cc +++ b/hybridse/src/passes/physical/group_and_sort_optimized.cc @@ -25,6 +25,7 @@ #include "absl/cleanup/cleanup.h" #include "absl/status/status.h" #include "absl/strings/string_view.h" +#include "node/node_enum.h" #include "vm/physical_op.h" namespace hybridse { @@ -294,6 +295,7 @@ bool GroupAndSortOptimized::KeysOptimized(const SchemasContext* root_schemas_ctx absl::Cleanup clean = [&]() { expr_cache_.clear(); + optimize_info_ = nullptr; }; auto s = BuildExprCache(left_key->keys(), root_schemas_ctx); @@ -347,6 +349,18 @@ bool GroupAndSortOptimized::KeysOptimizedImpl(const SchemasContext* root_schemas if (DataProviderType::kProviderTypeTable == scan_op->provider_type_ || DataProviderType::kProviderTypePartition == scan_op->provider_type_) { + auto* table_node = dynamic_cast(scan_op); + if (optimize_info_) { + if (optimize_info_->left_key == left_key && optimize_info_->index_key == index_key && + optimize_info_->right_key == right_key && optimize_info_->sort_key == sort) { + if (optimize_info_->optimized != nullptr && + table_node->GetDb() == optimize_info_->optimized->GetDb() && + table_node->GetName() == optimize_info_->optimized->GetName()) { + *new_in = optimize_info_->optimized; + return true; + } + } + } const node::ExprListNode* right_partition = right_key == nullptr ? left_key->keys() : right_key->keys(); @@ -453,13 +467,15 @@ bool GroupAndSortOptimized::KeysOptimizedImpl(const SchemasContext* root_schemas dynamic_cast(node_manager_->MakeOrderByNode(node_manager_->MakeExprList( node_manager_->MakeOrderExpression(nullptr, first_order_expression->is_asc()))))); } + + optimize_info_.reset(new OptimizeInfo(left_key, index_key, right_key, sort, partition_op)); *new_in = partition_op; return true; } } else if (PhysicalOpType::kPhysicalOpSimpleProject == in->GetOpType()) { PhysicalOpNode* new_depend; - if (!KeysOptimizedImpl(in->GetProducer(0)->schemas_ctx(), in->GetProducer(0), left_key, index_key, right_key, sort, - &new_depend)) { + if (!KeysOptimizedImpl(in->GetProducer(0)->schemas_ctx(), in->GetProducer(0), left_key, index_key, right_key, + sort, &new_depend)) { return false; } @@ -493,7 +509,8 @@ bool GroupAndSortOptimized::KeysOptimizedImpl(const SchemasContext* root_schemas PhysicalFilterNode* filter_op = dynamic_cast(in); PhysicalOpNode* new_depend; - if (!KeysOptimizedImpl(root_schemas_ctx, in->producers()[0], left_key, index_key, right_key, sort, &new_depend)) { + if (!KeysOptimizedImpl(root_schemas_ctx, in->producers()[0], left_key, index_key, right_key, sort, + &new_depend)) { return false; } PhysicalFilterNode* new_filter = nullptr; @@ -515,8 +532,16 @@ bool GroupAndSortOptimized::KeysOptimizedImpl(const SchemasContext* root_schemas &new_depend)) { return false; } + PhysicalOpNode* new_right = in->GetProducer(1); + if (request_join->join_.join_type_ == node::kJoinTypeConcat) { + // for concat join, only acceptable if the two inputs (of course same table) optimized by the same index + auto* rebase_sc = in->GetProducer(1)->schemas_ctx(); + if (!KeysOptimizedImpl(rebase_sc, in->GetProducer(1), left_key, index_key, right_key, sort, &new_right)) { + return false; + } + } PhysicalRequestJoinNode* new_join = nullptr; - auto s = plan_ctx_->CreateOp(&new_join, new_depend, request_join->GetProducer(1), + auto s = plan_ctx_->CreateOp(&new_join, new_depend, new_right, request_join->join(), request_join->output_right_only()); if (!s.isOK()) { LOG(WARNING) << "Fail to create new request join op: " << s; @@ -545,6 +570,57 @@ bool GroupAndSortOptimized::KeysOptimizedImpl(const SchemasContext* root_schemas *new_in = new_join; return true; + } else if (PhysicalOpType::kPhysicalOpProject == in->GetOpType()) { + auto * project = dynamic_cast(in); + if (project == nullptr || project->project_type_ != vm::kAggregation) { + return false; + } + + auto * agg_project = dynamic_cast(in); + + PhysicalOpNode* new_depend = nullptr; + auto* rebase_sc = in->GetProducer(0)->schemas_ctx(); + if (!KeysOptimizedImpl(rebase_sc, in->GetProducer(0), left_key, index_key, right_key, sort, + &new_depend)) { + return false; + } + + vm::PhysicalAggregationNode* new_agg = nullptr; + if (!plan_ctx_ + ->CreateOp(&new_agg, new_depend, agg_project->project(), + agg_project->having_condition_.condition()) + .isOK()) { + return false; + } + *new_in = new_agg; + return true; + } else if (PhysicalOpType::kPhysicalOpRequestUnion == in->GetOpType()) { + // JOIN (..., AGG(REQUEST_UNION(left, ...))): JOIN condition optimizing left + PhysicalOpNode* new_left_depend = nullptr; + auto* rebase_sc = in->GetProducer(0)->schemas_ctx(); + if (!KeysOptimizedImpl(rebase_sc, in->GetProducer(0), left_key, index_key, right_key, sort, + &new_left_depend)) { + return false; + } + + auto * request_union = dynamic_cast(in); + + vm::PhysicalRequestUnionNode* new_union = nullptr; + if (!plan_ctx_ + ->CreateOp( + &new_union, new_left_depend, in->GetProducer(1), request_union->window(), + request_union->instance_not_in_window(), request_union->exclude_current_time(), + request_union->output_request_row()) + .isOK()) { + return false; + } + for (auto& pair : request_union->window_unions().window_unions_) { + if (!new_union->AddWindowUnion(pair.first, pair.second)) { + return false; + } + } + *new_in = new_union; + return true; } return false; } diff --git a/hybridse/src/passes/physical/group_and_sort_optimized.h b/hybridse/src/passes/physical/group_and_sort_optimized.h index 1d410f2b8e8..2e50571b29d 100644 --- a/hybridse/src/passes/physical/group_and_sort_optimized.h +++ b/hybridse/src/passes/physical/group_and_sort_optimized.h @@ -93,6 +93,17 @@ class GroupAndSortOptimized : public TransformUpPysicalPass { std::string db_name; }; + struct OptimizeInfo { + OptimizeInfo(const Key* left_key, const Key* index_key, const Key* right_key, const Sort* s, + vm::PhysicalPartitionProviderNode* optimized) + : left_key(left_key), index_key(index_key), right_key(right_key), sort_key(s), optimized(optimized) {} + const Key* left_key; + const Key* index_key; + const Key* right_key; + const Sort* sort_key; + vm::PhysicalPartitionProviderNode* optimized; + }; + private: bool Transform(PhysicalOpNode* in, PhysicalOpNode** output); @@ -149,6 +160,8 @@ class GroupAndSortOptimized : public TransformUpPysicalPass { // A source column name is the column name in string that refers to a physical table, // only one table got optimized each time std::unordered_map expr_cache_; + + std::unique_ptr optimize_info_; }; } // namespace passes } // namespace hybridse diff --git a/hybridse/src/passes/physical/transform_up_physical_pass.h b/hybridse/src/passes/physical/transform_up_physical_pass.h index fed721d4c66..a9a80bd90b4 100644 --- a/hybridse/src/passes/physical/transform_up_physical_pass.h +++ b/hybridse/src/passes/physical/transform_up_physical_pass.h @@ -17,7 +17,6 @@ #define HYBRIDSE_SRC_PASSES_PHYSICAL_TRANSFORM_UP_PHYSICAL_PASS_H_ #include -#include #include #include diff --git a/hybridse/src/plan/planner.cc b/hybridse/src/plan/planner.cc index 1584d76acbb..fc350d1ffb6 100644 --- a/hybridse/src/plan/planner.cc +++ b/hybridse/src/plan/planner.cc @@ -272,7 +272,7 @@ base::Status Planner::CreateSelectQueryPlan(const node::SelectQueryNode *root, n auto first_window_project = dynamic_cast(project_list_vec[1]); node::ProjectListNode *merged_project = node_manager_->MakeProjectListPlanNode(first_window_project->GetW(), true); - if (!is_cluster_optimized_ && !enable_batch_window_parallelization_ && + if (!is_cluster_optimized_ && !enable_batch_window_parallelization_ && node::ProjectListNode::MergeProjectList(simple_project, first_window_project, merged_project)) { project_list_vec[0] = nullptr; project_list_vec[1] = merged_project; diff --git a/hybridse/src/testing/engine_test_base.cc b/hybridse/src/testing/engine_test_base.cc index 2c3134d1257..9a0ad6fdd39 100644 --- a/hybridse/src/testing/engine_test_base.cc +++ b/hybridse/src/testing/engine_test_base.cc @@ -536,6 +536,8 @@ INSTANTIATE_TEST_SUITE_P(EngineLastJoinQuery, EngineTest, INSTANTIATE_TEST_SUITE_P(EngineLastJoinWindowQuery, EngineTest, testing::ValuesIn(sqlcase::InitCases("cases/query/last_join_window_query.yaml"))); +INSTANTIATE_TEST_SUITE_P(EngineLastJoinSubqueryWindow, EngineTest, + testing::ValuesIn(sqlcase::InitCases("cases/query/last_join_subquery_window.yml"))); INSTANTIATE_TEST_SUITE_P(EngineLastJoinWhere, EngineTest, testing::ValuesIn(sqlcase::InitCases("cases/query/last_join_where.yaml"))); INSTANTIATE_TEST_SUITE_P(EngineWindowQuery, EngineTest, diff --git a/hybridse/src/testing/engine_test_base.h b/hybridse/src/testing/engine_test_base.h index e759169f0fd..0805ff1b3c5 100644 --- a/hybridse/src/testing/engine_test_base.h +++ b/hybridse/src/testing/engine_test_base.h @@ -318,8 +318,7 @@ class BatchRequestEngineTestRunner : public EngineTestRunner { bool has_batch_request = !sql_case_.batch_request().columns_.empty(); if (!has_batch_request) { - LOG(WARNING) << "No batch request field in case, " - << "try use last row from primary input"; + LOG(WARNING) << "No batch request field in case, try use last row from primary input"; } std::vector original_request_data; diff --git a/hybridse/src/vm/catalog_wrapper.cc b/hybridse/src/vm/catalog_wrapper.cc index d134a92e51b..b10c6f1c55b 100644 --- a/hybridse/src/vm/catalog_wrapper.cc +++ b/hybridse/src/vm/catalog_wrapper.cc @@ -164,5 +164,224 @@ RowIterator* LazyLastJoinWindowIterator::GetRawValue() { return new LazyLastJoinIterator(std::move(iter), right_, parameter_, join_); } + +std::shared_ptr ConcatPartitionHandler::GetSegment(const std::string& key) { + auto left_seg = left_->GetSegment(key); + auto right_seg = right_->GetSegment(key); + return std::shared_ptr( + new SimpleConcatTableHandler(left_seg, left_slices_, right_seg, right_slices_)); +} + +RowIterator* ConcatPartitionHandler::GetRawIterator() { + auto li = left_->GetIterator(); + if (!li) { + return nullptr; + } + auto ri = right_->GetIterator(); + return new ConcatIterator(std::move(li), left_slices_, std::move(ri), right_slices_); +} + +std::unique_ptr ConcatPartitionHandler::GetIterator() { + auto p = GetRawIterator(); + if (p == nullptr) { + return {}; + } + return std::unique_ptr(p); +} + +std::unique_ptr LazyRequestUnionPartitionHandler::GetWindowIterator() { + auto w = left_->GetWindowIterator(); + if (!w) { + return {}; + } + + return std::unique_ptr(new LazyRequestUnionWindowIterator(std::move(w), func_)); +} + +std::shared_ptr LazyRequestUnionPartitionHandler::GetSegment(const std::string& key) { + return nullptr; +} + +std::unique_ptr LazyRequestUnionPartitionHandler::GetIterator() { + return std::unique_ptr(GetRawIterator()); +} +const IndexHint& LazyRequestUnionPartitionHandler::GetIndex() { return left_->GetIndex(); } + +const Types& LazyRequestUnionPartitionHandler::GetTypes() { return left_->GetTypes(); } + +base::ConstIterator* LazyRequestUnionPartitionHandler::GetRawIterator() { return nullptr; } +bool LazyAggIterator::Valid() const { return it_->Valid(); } +void LazyAggIterator::Next() { it_->Next(); } +const uint64_t& LazyAggIterator::GetKey() const { return it_->GetKey(); } +const Row& LazyAggIterator::GetValue() { + if (Valid()) { + auto request = it_->GetValue(); + auto window = func_(request); + if (window) { + buf_ = agg_gen_->Gen(parameter_, window); + return buf_; + } + } + + buf_ = Row(); + return buf_; +} + +void LazyAggIterator::Seek(const uint64_t& key) { it_->Seek(key); } +void LazyAggIterator::SeekToFirst() { it_->SeekToFirst(); } +std::unique_ptr LazyAggTableHandler::GetIterator() { + auto* it = GetRawIterator(); + if (it == nullptr) { + return {}; + } + return std::unique_ptr(it); +} +std::unique_ptr LazyAggTableHandler::GetWindowIterator(const std::string& idx_name) { return nullptr; } +base::ConstIterator* LazyAggTableHandler::GetRawIterator() { + auto it = left_->GetIterator(); + if (!it) { + return nullptr; + } + return new LazyAggIterator(std::move(it), func_, agg_gen_, parameter_); +} +std::shared_ptr LazyAggTableHandler::GetPartition(const std::string& index_name) { return nullptr; } +const Types& LazyAggTableHandler::GetTypes() { return left_->GetTypes(); } +const IndexHint& LazyAggTableHandler::GetIndex() { return left_->GetIndex(); } +const Schema* LazyAggTableHandler::GetSchema() { return nullptr; } +const std::string& LazyAggTableHandler::GetName() { return left_->GetName(); } +const std::string& LazyAggTableHandler::GetDatabase() { return left_->GetDatabase(); } +std::shared_ptr LazyAggPartitionHandler::GetSegment(const std::string& key) { + auto seg = input_->Left()->GetSegment(key); + return std::shared_ptr(new LazyAggTableHandler(seg, input_->Func(), agg_gen_, parameter_)); +} +const std::string LazyAggPartitionHandler::GetHandlerTypeName() { return "LazyLastJoinPartitionHandler"; } +std::unique_ptr LazyAggPartitionHandler::GetIterator() { + auto it = input_->Left()->GetIterator(); + return std::unique_ptr(new LazyAggIterator(std::move(it), input_->Func(), agg_gen_, parameter_)); +} +base::ConstIterator* LazyAggPartitionHandler::GetRawIterator() { return nullptr; } +bool ConcatIterator::Valid() const { return left_ && left_->Valid(); } +void ConcatIterator::Next() { + left_->Next(); + if (right_ && right_->Valid()) { + right_->Next(); + } +} +const uint64_t& ConcatIterator::GetKey() const { return left_->GetKey(); } +const Row& ConcatIterator::GetValue() { + if (!right_ || !right_->Valid()) { + buf_ = Row(left_slices_, left_->GetValue(), right_slices_, Row()); + } else { + buf_ = Row(left_slices_, left_->GetValue(), right_slices_, right_->GetValue()); + } + return buf_; +} +void ConcatIterator::Seek(const uint64_t& key) { + left_->Seek(key); + if (right_ && right_->Valid()) { + right_->Seek(key); + } +} +void ConcatIterator::SeekToFirst() { + left_->SeekToFirst(); + if (right_) { + right_->SeekToFirst(); + } +} +std::unique_ptr SimpleConcatTableHandler::GetIterator() { + auto p = GetRawIterator(); + if (p == nullptr) { + return {}; + } + return std::unique_ptr(p); +} +RowIterator* SimpleConcatTableHandler::GetRawIterator() { + auto li = left_->GetIterator(); + if (!li) { + return nullptr; + } + auto ri = right_->GetIterator(); + return new ConcatIterator(std::move(li), left_slices_, std::move(ri), right_slices_); +} +std::unique_ptr SimpleConcatTableHandler::GetWindowIterator(const std::string& idx_name) { + return nullptr; +} +std::unique_ptr ConcatPartitionHandler::GetWindowIterator() { return nullptr; } +std::unique_ptr ConcatPartitionHandler::GetWindowIterator(const std::string& idx_name) { + return nullptr; +} + +std::unique_ptr LazyAggPartitionHandler::GetWindowIterator() { + auto w = input_->Left()->GetWindowIterator(); + return std::unique_ptr( + new LazyAggWindowIterator(std::move(w), input_->Func(), agg_gen_, parameter_)); +} + +RowIterator* LazyAggWindowIterator::GetRawValue() { + auto w = left_->GetValue(); + if (!w) { + return nullptr; + } + + return new LazyAggIterator(std::move(w), func_, agg_gen_, parameter_); +} +void LazyRequestUnionIterator::Next() { + if (Valid()) { + cur_iter_->Next(); + } + if (!Valid()) { + left_->Next(); + OnNewRow(); + } +} +bool LazyRequestUnionIterator::Valid() const { return cur_iter_ && cur_iter_->Valid(); } +void LazyRequestUnionIterator::Seek(const uint64_t& key) { + left_->Seek(key); + OnNewRow(false); +} +void LazyRequestUnionIterator::SeekToFirst() { + left_->SeekToFirst(); + OnNewRow(); +} +void LazyRequestUnionIterator::OnNewRow(bool continue_on_empty) { + while (left_->Valid()) { + auto row = left_->GetValue(); + auto tb = func_(row); + if (tb) { + auto it = tb->GetIterator(); + if (it) { + it->SeekToFirst(); + if (it->Valid()) { + cur_window_ = tb; + cur_iter_ = std::move(it); + break; + } + } + } + + if (continue_on_empty) { + left_->Next(); + } else { + cur_window_ = {}; + cur_iter_ = {}; + break; + } + } +} +const uint64_t& LazyRequestUnionIterator::GetKey() const { return cur_iter_->GetKey(); } +const Row& LazyRequestUnionIterator::GetValue() { return cur_iter_->GetValue(); } +RowIterator* LazyRequestUnionWindowIterator::GetRawValue() { + auto rows = left_->GetValue(); + if (!rows) { + return {}; + } + + return new LazyRequestUnionIterator(std::move(rows), func_); +} +bool LazyRequestUnionWindowIterator::Valid() { return left_ && left_->Valid(); } +const Row LazyRequestUnionWindowIterator::GetKey() { return left_->GetKey(); } +void LazyRequestUnionWindowIterator::SeekToFirst() { left_->SeekToFirst(); } +void LazyRequestUnionWindowIterator::Seek(const std::string& key) { left_->Seek(key); } +void LazyRequestUnionWindowIterator::Next() { left_->Next(); } } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/catalog_wrapper.h b/hybridse/src/vm/catalog_wrapper.h index 11441b4bf54..855eb1f703a 100644 --- a/hybridse/src/vm/catalog_wrapper.h +++ b/hybridse/src/vm/catalog_wrapper.h @@ -17,10 +17,12 @@ #ifndef HYBRIDSE_SRC_VM_CATALOG_WRAPPER_H_ #define HYBRIDSE_SRC_VM_CATALOG_WRAPPER_H_ +#include #include #include #include +#include "codec/row_iterator.h" #include "vm/catalog.h" #include "vm/generator.h" @@ -705,6 +707,296 @@ class LazyLastJoinWindowIterator final : public codec::WindowIterator { std::shared_ptr join_; }; +class LazyRequestUnionIterator final : public RowIterator { + public: + LazyRequestUnionIterator(std::unique_ptr&& left, + std::function(const Row&)> func) + : left_(std::move(left)), func_(func) { + SeekToFirst(); + } + ~LazyRequestUnionIterator() override {} + + bool Valid() const override; + void Next() override; + const uint64_t& GetKey() const override; + const Row& GetValue() override; + bool IsSeekable() const override { return true; } + + void Seek(const uint64_t& key) override; + void SeekToFirst() override; + + private: + void OnNewRow(bool continue_on_empty = true); + + private: + // all same keys from left form a window, although it is better that every row be a partition + std::unique_ptr left_; + std::function(const Row&)> func_; + + std::shared_ptr cur_window_; + std::unique_ptr cur_iter_; +}; + +class LazyRequestUnionWindowIterator final : public codec::WindowIterator { + public: + LazyRequestUnionWindowIterator(std::unique_ptr&& left, + std::function(const Row&)> func) + : left_(std::move(left)), func_(func) { + SeekToFirst(); + } + ~LazyRequestUnionWindowIterator() override {} + + RowIterator* GetRawValue() override; + + void Seek(const std::string& key) override; + void SeekToFirst() override; + void Next() override; + bool Valid() override; + const Row GetKey() override; + + private: + std::unique_ptr left_; + std::function(const Row&)> func_; +}; + +class LazyRequestUnionPartitionHandler final : public PartitionHandler { + public: + LazyRequestUnionPartitionHandler(std::shared_ptr left, + std::function(const Row&)> func) + : left_(left), func_(func) {} + ~LazyRequestUnionPartitionHandler() override {} + + std::unique_ptr GetWindowIterator() override; + + std::shared_ptr GetSegment(const std::string& key) override; + + const std::string GetHandlerTypeName() override { return "LazyRequestUnionPartitiontHandler"; } + + std::unique_ptr GetIterator() override; + + const IndexHint& GetIndex() override; + + // unimplemented + const Types& GetTypes() override; + + // unimplemented + const Schema* GetSchema() override { return nullptr; } + const std::string& GetName() override { return left_->GetName(); } + const std::string& GetDatabase() override { return left_->GetDatabase(); } + + base::ConstIterator* GetRawIterator() override; + + auto Left() const { return left_; } + auto Func() const { return func_; } + + private: + std::shared_ptr left_; + std::function(const Row&)> func_; +}; + +class LazyAggIterator final : public RowIterator { + public: + LazyAggIterator(std::unique_ptr&& it, std::function(const Row&)> func, + std::shared_ptr agg_gen, const Row& param) + : it_(std::move(it)), func_(func), agg_gen_(agg_gen), parameter_(param) { + SeekToFirst(); + } + + ~LazyAggIterator() override {} + + bool Valid() const override; + void Next() override; + const uint64_t& GetKey() const override; + const Row& GetValue() override; + bool IsSeekable() const override { return true; } + + void Seek(const uint64_t& key) override; + void SeekToFirst() override; + + private: + std::unique_ptr it_; + std::function(const Row&)> func_; + std::shared_ptr agg_gen_; + const Row& parameter_; + + Row buf_; +}; + +class LazyAggTableHandler final : public TableHandler { + public: + LazyAggTableHandler(std::shared_ptr left, + std::function(const Row&)> func, + std::shared_ptr agg_gen, const Row& param) + : left_(left), func_(func), agg_gen_(agg_gen), parameter_(param) { + DLOG(INFO) << "iterator count = " << left_->GetCount(); + } + ~LazyAggTableHandler() override {} + + std::unique_ptr GetIterator() override; + + // unimplemented + const Types& GetTypes() override; + const IndexHint& GetIndex() override; + std::unique_ptr GetWindowIterator(const std::string& idx_name) override; + const Schema* GetSchema() override; + const std::string& GetName() override; + const std::string& GetDatabase() override; + + base::ConstIterator* GetRawIterator() override; + + std::shared_ptr GetPartition(const std::string& index_name) override; + + private: + std::shared_ptr left_; + std::function(const Row&)> func_; + std::shared_ptr agg_gen_; + const Row& parameter_; +}; + +class LazyAggWindowIterator final : public codec::WindowIterator { + public: + LazyAggWindowIterator(std::unique_ptr left, + std::function(const Row&)> func, + std::shared_ptr gen, const Row& p) + : left_(std::move(left)), func_(func), agg_gen_(gen), parameter_(p) {} + ~LazyAggWindowIterator() override {} + + RowIterator* GetRawValue() override; + + void Seek(const std::string& key) override { left_->Seek(key); } + void SeekToFirst() override { left_->SeekToFirst(); } + void Next() override { left_->Next(); } + bool Valid() override { return left_ && left_->Valid(); } + const Row GetKey() override { return left_->GetKey(); } + + private: + std::unique_ptr left_; + std::function(const Row&)> func_; + std::shared_ptr agg_gen_; + const Row& parameter_; +}; + +class LazyAggPartitionHandler final : public PartitionHandler { + public: + LazyAggPartitionHandler(std::shared_ptr input, + std::shared_ptr agg_gen, const Row& param) + : input_(input), agg_gen_(agg_gen), parameter_(param) {} + ~LazyAggPartitionHandler() override {} + + std::shared_ptr GetSegment(const std::string& key) override; + + const std::string GetHandlerTypeName() override; + + std::unique_ptr GetIterator() override; + + std::unique_ptr GetWindowIterator() override; + + const IndexHint& GetIndex() override { return input_->GetIndex(); } + + // unimplemented + const Types& GetTypes() override { return input_->GetTypes(); } + const Schema* GetSchema() override { return nullptr; } + const std::string& GetName() override { return input_->GetName(); } + const std::string& GetDatabase() override { return input_->GetDatabase(); } + base::ConstIterator* GetRawIterator() override; + + private: + std::shared_ptr input_; + std::shared_ptr agg_gen_; + const Row& parameter_; +}; + +class ConcatIterator final : public RowIterator { + public: + ConcatIterator(std::unique_ptr&& left, size_t left_slices, std::unique_ptr&& right, + size_t right_slices) + : left_(std::move(left)), left_slices_(left_slices), right_(std::move(right)), right_slices_(right_slices) { + SeekToFirst(); + } + ~ConcatIterator() override {} + + bool Valid() const override; + void Next() override; + const uint64_t& GetKey() const override; + const Row& GetValue() override; + + bool IsSeekable() const override { return true; }; + + void Seek(const uint64_t& key) override; + + void SeekToFirst() override; + + private: + std::unique_ptr left_; + size_t left_slices_; + std::unique_ptr right_; + size_t right_slices_; + + Row buf_; +}; + +class SimpleConcatTableHandler final : public TableHandler { + public: + SimpleConcatTableHandler(std::shared_ptr left, size_t left_slices, + std::shared_ptr right, size_t right_slices) + : left_(left), left_slices_(left_slices), right_(right), right_slices_(right_slices) {} + ~SimpleConcatTableHandler() override {} + + std::unique_ptr GetIterator() override; + + RowIterator* GetRawIterator() override; + + std::unique_ptr GetWindowIterator(const std::string& idx_name) override; + + const Types& GetTypes() override { return left_->GetTypes(); } + + const IndexHint& GetIndex() override { return left_->GetIndex(); } + + // unimplemented + const Schema* GetSchema() override { return left_->GetSchema(); } + const std::string& GetName() override { return left_->GetName(); } + const std::string& GetDatabase() override { return left_->GetDatabase(); } + + private: + std::shared_ptr left_; + size_t left_slices_; + std::shared_ptr right_; + size_t right_slices_; +}; + +class ConcatPartitionHandler final : public PartitionHandler { + public: + ConcatPartitionHandler(std::shared_ptr left, size_t left_slices, + std::shared_ptr right, size_t right_slices) + : left_(left), left_slices_(left_slices), right_(right), right_slices_(right_slices) {} + ~ConcatPartitionHandler() override {} + + std::unique_ptr GetIterator() override; + + RowIterator* GetRawIterator() override; + + std::unique_ptr GetWindowIterator(const std::string& idx_name) override; + + std::unique_ptr GetWindowIterator() override; + + std::shared_ptr GetSegment(const std::string& key) override; + + const Types& GetTypes() override { return left_->GetTypes(); } + + const IndexHint& GetIndex() override { return left_->GetIndex(); } + + // unimplemented + const Schema* GetSchema() override { return nullptr; } + const std::string& GetName() override { return left_->GetName(); } + const std::string& GetDatabase() override { return left_->GetDatabase(); } + + private: + std::shared_ptr left_; + size_t left_slices_; + std::shared_ptr right_; + size_t right_slices_; +}; + } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/engine.cc b/hybridse/src/vm/engine.cc index 4fdc368887e..fc88a6ccda1 100644 --- a/hybridse/src/vm/engine.cc +++ b/hybridse/src/vm/engine.cc @@ -153,7 +153,7 @@ bool Engine::Get(const std::string& sql, const std::string& db, RunSession& sess DLOG(INFO) << "Compile Engine ..."; status = base::Status::OK(); std::shared_ptr info = std::make_shared(); - auto& sql_context = std::dynamic_pointer_cast(info)->get_sql_context(); + auto& sql_context = info->get_sql_context(); sql_context.sql = sql; sql_context.db = db; sql_context.engine_mode = session.engine_mode(); diff --git a/hybridse/src/vm/generator.cc b/hybridse/src/vm/generator.cc index 28542a7befb..aaa16ff2783 100644 --- a/hybridse/src/vm/generator.cc +++ b/hybridse/src/vm/generator.cc @@ -16,6 +16,7 @@ #include "vm/generator.h" +#include "vm/catalog_wrapper.h" #include "vm/runner.h" namespace hybridse { diff --git a/hybridse/src/vm/generator.h b/hybridse/src/vm/generator.h index 4dded0d6ebf..7bb49337794 100644 --- a/hybridse/src/vm/generator.h +++ b/hybridse/src/vm/generator.h @@ -79,11 +79,17 @@ class ConstProjectGenerator : public FnGenerator { const Row Gen(const Row& parameter); RowProjectFun fun_; }; -class AggGenerator : public FnGenerator { +class AggGenerator : public FnGenerator, public std::enable_shared_from_this { public: - explicit AggGenerator(const FnInfo& info) : FnGenerator(info) {} + [[nodiscard]] static std::shared_ptr Create(const FnInfo& info) { + return std::shared_ptr(new AggGenerator(info)); + } + virtual ~AggGenerator() {} const Row Gen(const codec::Row& parameter_row, std::shared_ptr table); + + private: + explicit AggGenerator(const FnInfo& info) : FnGenerator(info) {} }; class WindowProjectGenerator : public FnGenerator { public: @@ -112,8 +118,18 @@ class ConditionGenerator : public FnGenerator { const bool Gen(const Row& row, const Row& parameter) const; const bool Gen(std::shared_ptr table, const codec::Row& parameter_row); }; -class RangeGenerator { +class RangeGenerator : public std::enable_shared_from_this { public: + [[nodiscard]] static std::shared_ptr Create(const Range& range) { + return std::shared_ptr(new RangeGenerator(range)); + } + virtual ~RangeGenerator() {} + + const bool Valid() const { return ts_gen_.Valid(); } + OrderGenerator ts_gen_; + WindowRange window_range_; + + private: explicit RangeGenerator(const Range& range) : ts_gen_(range.fn_info()), window_range_() { if (range.frame_ != nullptr) { switch (range.frame()->frame_type()) { @@ -142,11 +158,8 @@ class RangeGenerator { } } } - virtual ~RangeGenerator() {} - const bool Valid() const { return ts_gen_.Valid(); } - OrderGenerator ts_gen_; - WindowRange window_range_; }; + class FilterKeyGenerator { public: explicit FilterKeyGenerator(const Key& filter_key) : filter_key_(filter_key.fn_info()) {} @@ -253,13 +266,15 @@ class FilterGenerator : public PredicateFun { class WindowGenerator { public: explicit WindowGenerator(const WindowOp& window) - : window_op_(window), partition_gen_(window.partition_), sort_gen_(window.sort_), range_gen_(window.range_) {} + : window_op_(window), partition_gen_(window.partition_), sort_gen_(window.sort_) { + range_gen_ = RangeGenerator::Create(window.range_); + } virtual ~WindowGenerator() {} - const int64_t OrderKey(const Row& row) { return range_gen_.ts_gen_.Gen(row); } + const int64_t OrderKey(const Row& row) { return range_gen_->ts_gen_.Gen(row); } const WindowOp window_op_; PartitionGenerator partition_gen_; SortGenerator sort_gen_; - RangeGenerator range_gen_; + std::shared_ptr range_gen_; }; class RequestWindowGenertor { diff --git a/hybridse/src/vm/internal/node_helper.cc b/hybridse/src/vm/internal/node_helper.cc index 9d97c14374a..46b3e0dfa8f 100644 --- a/hybridse/src/vm/internal/node_helper.cc +++ b/hybridse/src/vm/internal/node_helper.cc @@ -36,7 +36,69 @@ Status GetDependentTables(const PhysicalOpNode* root, std::setGetDependents(); }); return Status::OK(); } +absl::StatusOr ExtractRequestNode(PhysicalOpNode* in) { + if (in == nullptr) { + return absl::InvalidArgumentError("null input node"); + } + switch (in->GetOpType()) { + case vm::kPhysicalOpDataProvider: { + auto tp = dynamic_cast(in)->provider_type_; + if (tp == kProviderTypeRequest) { + return in; + } + + // else data provider is fine inside node tree, + // generally it is of type Partition, but can be Table as well e.g window (t1 instance_not_in_window) + return nullptr; + } + case vm::kPhysicalOpJoin: + case vm::kPhysicalOpUnion: + case vm::kPhysicalOpPostRequestUnion: + case vm::kPhysicalOpRequestUnion: + case vm::kPhysicalOpRequestAggUnion: + case vm::kPhysicalOpRequestJoin: { + // Binary Node + // - left or right status not ok -> error + // - left and right both has non-null value + // - the two not equals -> error + // - otherwise -> left as request node + auto left = ExtractRequestNode(in->GetProducer(0)); + if (!left.ok()) { + return left; + } + auto right = ExtractRequestNode(in->GetProducer(1)); + if (!right.ok()) { + return right; + } + + if (left.value() != nullptr && right.value() != nullptr) { + if (!left.value()->Equals(right.value())) { + return absl::NotFoundError( + absl::StrCat("different request table from left and right path:\n", in->GetTreeString())); + } + } + + return left.value(); + } + default: { + break; + } + } + + if (in->GetProducerCnt() == 0) { + // leaf node excepting DataProdiverNode + // consider ok as right source from one of the supported binary op + return nullptr; + } + + if (in->GetProducerCnt() > 1) { + return absl::UnimplementedError( + absl::StrCat("Non-support op with more than one producer:\n", in->GetTreeString())); + } + + return ExtractRequestNode(in->GetProducer(0)); +} } // namespace internal } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/internal/node_helper.h b/hybridse/src/vm/internal/node_helper.h index 7b9d5044748..15514dda764 100644 --- a/hybridse/src/vm/internal/node_helper.h +++ b/hybridse/src/vm/internal/node_helper.h @@ -26,6 +26,7 @@ #include "vm/physical_op.h" #include "vm/physical_plan_context.h" +/// PhysicalOpNode related utility functions namespace hybridse { namespace vm { namespace internal { @@ -68,6 +69,12 @@ State ReduceNode(const PhysicalOpNode* root, State state, BinOp&& op, GetKids&& // Get all dependent (db, table) info from physical plan Status GetDependentTables(const PhysicalOpNode*, std::set>*); +// Extract request node of the node tree. +// Returns +// - Request node on success +// - NULL if tree do not has request table but sufficient as as input tree of the big one +// - Error status otherwise +absl::StatusOr ExtractRequestNode(PhysicalOpNode* in); } // namespace internal } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/mem_catalog.cc b/hybridse/src/vm/mem_catalog.cc index dca41c9355b..29a2e2791e4 100644 --- a/hybridse/src/vm/mem_catalog.cc +++ b/hybridse/src/vm/mem_catalog.cc @@ -18,8 +18,6 @@ #include -#include "absl/strings/substitute.h" - namespace hybridse { namespace vm { MemTimeTableIterator::MemTimeTableIterator(const MemTimeTable* table, diff --git a/hybridse/src/vm/runner.cc b/hybridse/src/vm/runner.cc index 586f75c6187..7d26cdf899d 100644 --- a/hybridse/src/vm/runner.cc +++ b/hybridse/src/vm/runner.cc @@ -25,6 +25,7 @@ #include "absl/strings/str_cat.h" #include "absl/strings/substitute.h" #include "base/texttable.h" +#include "vm/catalog.h" #include "vm/catalog_wrapper.h" #include "vm/core_api.h" #include "vm/internal/eval.h" @@ -52,6 +53,15 @@ static bool IsPartitionProvider(vm::PhysicalOpNode* n) { } } +static vm::PhysicalDataProviderNode* request_node(vm::PhysicalOpNode* n) { + switch (n->GetOpType()) { + case kPhysicalOpDataProvider: + return dynamic_cast(n); + default: + return request_node(n->GetProducer(0)); + } +} + // Build Runner for each physical node // return cluster task of given runner // @@ -328,6 +338,16 @@ ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { } } } + if (support_cluster_optimized_) { + if (IsPartitionProvider(node->GetProducer(0))) { + // route by index of the left source, and it should uncompleted + auto& route_info = left_task.GetRouteInfo(); + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, + UnCompletedClusterTask(runner, route_info.table_handler_, route_info.index_)); + } + } return RegisterTask( node, BinaryInherit(left_task, right_task, runner, index_key, kRightBias)); @@ -372,6 +392,7 @@ ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { if (right_task.IsCompletedClusterTask() && right_task.GetRouteInfo().lazy_route_ && !op->join_.index_key_.ValidKey()) { + // join (.., filter) auto& route_info = right_task.GetRouteInfo(); runner->AddProducer(left_task.GetRoot()); runner->AddProducer(right_task.GetRoot()); @@ -387,10 +408,20 @@ ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { if (support_cluster_optimized_) { if (right_task.IsCompletedClusterTask() && right_task.GetRouteInfo().lazy_route_ && !op->join_.index_key_.ValidKey()) { + // concat join (.., filter) runner->AddProducer(left_task.GetRoot()); runner->AddProducer(right_task.GetRoot()); return RegisterTask(node, ClusterTask(runner, {}, RouteInfo{})); } + + // concat join (any(tx), any(tx)), tx is not request table + auto left = request_node(node->GetProducer(0)); + // auto right = request_node(node->GetProducer(1)); + if (left->provider_type_ == kProviderTypePartition) { + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, ClusterTask(runner, {}, left_task.GetRouteInfo())); + } } return RegisterTask(node, BinaryInherit(left_task, right_task, runner, Key(), kNoBias)); } @@ -1526,7 +1557,7 @@ void WindowAggRunner::RunWindowAggOnKey( int32_t min_union_pos = IteratorStatus::FindLastIteratorWithMininumKey(union_segment_status); int32_t cnt = output_table->GetCount(); - HistoryWindow window(instance_window_gen_.range_gen_.window_range_); + HistoryWindow window(instance_window_gen_.range_gen_->window_range_); window.set_instance_not_in_window(instance_not_in_window_); window.set_exclude_current_time(exclude_current_time_); @@ -1602,6 +1633,8 @@ std::shared_ptr RequestLastJoinRunner::Run( return join_gen_->LazyLastJoin(left_part, std::dynamic_pointer_cast(right), ctx.GetParameterRow()); } + + LOG(WARNING) << "skip due to performance: left source of request join is table handler (unoptimized)"; return std::shared_ptr(); } @@ -2101,20 +2134,23 @@ std::shared_ptr ConcatRunner::Run( auto right = inputs[1]; auto left = inputs[0]; size_t left_slices = producers_[0]->output_schemas()->GetSchemaSourceSize(); - size_t right_slices = - producers_[1]->output_schemas()->GetSchemaSourceSize(); + size_t right_slices = producers_[1]->output_schemas()->GetSchemaSourceSize(); if (!left) { return std::shared_ptr(); } switch (left->GetHandlerType()) { case kRowHandler: - return std::shared_ptr(new RowCombineWrapper( - std::dynamic_pointer_cast(left), left_slices, - std::dynamic_pointer_cast(right), right_slices)); + return std::shared_ptr( + new RowCombineWrapper(std::dynamic_pointer_cast(left), left_slices, + std::dynamic_pointer_cast(right), right_slices)); case kTableHandler: - return std::shared_ptr(new ConcatTableHandler( - std::dynamic_pointer_cast(left), left_slices, - std::dynamic_pointer_cast(right), right_slices)); + return std::shared_ptr( + new ConcatTableHandler(std::dynamic_pointer_cast(left), left_slices, + std::dynamic_pointer_cast(right), right_slices)); + case kPartitionHandler: + return std::shared_ptr( + new ConcatPartitionHandler(std::dynamic_pointer_cast(left), left_slices, + std::dynamic_pointer_cast(right), right_slices)); default: { LOG(WARNING) << "fail to run conncat runner: handler type unsupported"; @@ -2149,6 +2185,8 @@ std::shared_ptr LimitRunner::Run( LOG(WARNING) << "fail limit when input type isn't row or table"; return fail_ptr; } + default: + break; } return fail_ptr; } @@ -2205,7 +2243,7 @@ std::shared_ptr GroupAggRunner::Run( return std::shared_ptr(); } if (!having_condition_.Valid() || having_condition_.Gen(table, parameter)) { - output_table->AddRow(agg_gen_.Gen(parameter, table)); + output_table->AddRow(agg_gen_->Gen(parameter, table)); } return output_table; } else if (kPartitionHandler == input->GetHandlerType()) { @@ -2228,7 +2266,7 @@ std::shared_ptr GroupAggRunner::Run( if (limit_cnt_.has_value() && cnt++ >= limit_cnt_) { break; } - output_table->AddRow(agg_gen_.Gen(parameter, segment)); + output_table->AddRow(agg_gen_->Gen(parameter, segment)); } iter->Next(); } @@ -2305,10 +2343,10 @@ std::shared_ptr RequestAggUnionRunner::Run( } auto request = std::dynamic_pointer_cast(request_handler)->GetValue(); - int64_t ts_gen = range_gen_.Valid() ? range_gen_.ts_gen_.Gen(request) : -1; + int64_t ts_gen = range_gen_->Valid() ? range_gen_->ts_gen_.Gen(request) : -1; // Prepare Union Window - auto union_inputs = windows_union_gen_.RunInputs(ctx); + auto union_inputs = windows_union_gen_->RunInputs(ctx); if (ctx.is_debug()) { for (size_t i = 0; i < union_inputs.size(); i++) { std::ostringstream sss; @@ -2317,13 +2355,13 @@ std::shared_ptr RequestAggUnionRunner::Run( } } - auto& key_gen = windows_union_gen_.windows_gen_[0].index_seek_gen_.index_key_gen_; + auto& key_gen = windows_union_gen_->windows_gen_[0].index_seek_gen_.index_key_gen_; std::string key = key_gen.Gen(request, ctx.GetParameterRow()); // do not use codegen to gen the union outputs for aggr segment union_inputs.pop_back(); auto union_segments = - windows_union_gen_.GetRequestWindows(request, ctx.GetParameterRow(), union_inputs); + windows_union_gen_->GetRequestWindows(request, ctx.GetParameterRow(), union_inputs); // code_gen result of agg_segment is not correct. we correct the result here auto agg_segment = std::dynamic_pointer_cast(union_inputs[1])->GetSegment(key); if (agg_segment) { @@ -2342,12 +2380,12 @@ std::shared_ptr RequestAggUnionRunner::Run( std::shared_ptr window; if (agg_segment) { - window = RequestUnionWindow(request, union_segments, ts_gen, range_gen_.window_range_, output_request_row_, + window = RequestUnionWindow(request, union_segments, ts_gen, range_gen_->window_range_, output_request_row_, exclude_current_time_); } else { LOG(WARNING) << "Aggr segment is empty. Fall back to normal RequestUnionRunner"; - window = RequestUnionRunner::RequestUnionWindow(request, union_segments, ts_gen, range_gen_.window_range_, true, - exclude_current_time_); + window = RequestUnionRunner::RequestUnionWindow(request, union_segments, ts_gen, range_gen_->window_range_, + true, exclude_current_time_); } return window; @@ -2766,9 +2804,8 @@ std::shared_ptr ReduceRunner::Run( return row_handler; } -std::shared_ptr RequestUnionRunner::Run( - RunnerContext& ctx, - const std::vector>& inputs) { +std::shared_ptr RequestUnionRunner::Run(RunnerContext& ctx, + const std::vector>& inputs) { auto fail_ptr = std::shared_ptr(); if (inputs.size() < 2u) { LOG(WARNING) << "inputs size < 2"; @@ -2779,23 +2816,30 @@ std::shared_ptr RequestUnionRunner::Run( if (!left || !right) { return std::shared_ptr(); } - if (kRowHandler != left->GetHandlerType()) { - return std::shared_ptr(); + if (kRowHandler == left->GetHandlerType()) { + auto request = std::dynamic_pointer_cast(left)->GetValue(); + return RunOneRequest(&ctx, request); + } else if (kPartitionHandler == left->GetHandlerType()) { + auto left_part = std::dynamic_pointer_cast(left); + auto func = std::bind(&RequestUnionRunner::RunOneRequest, this, &ctx, std::placeholders::_1); + return std::shared_ptr(new LazyRequestUnionPartitionHandler(left_part, func)); } - auto request = std::dynamic_pointer_cast(left)->GetValue(); - + LOG(WARNING) << "skip due to performance: left source of request union is table handler(unoptimized)"; + return std::shared_ptr(); +} +std::shared_ptr RequestUnionRunner::RunOneRequest(RunnerContext* ctx, const Row& request) { // ts_gen < 0 if there is no ORDER BY clause for WINDOW - int64_t ts_gen = range_gen_.Valid() ? range_gen_.ts_gen_.Gen(request) : -1; + int64_t ts_gen = range_gen_->Valid() ? range_gen_->ts_gen_.Gen(request) : -1; // Prepare Union Window - auto union_inputs = windows_union_gen_.RunInputs(ctx); - auto union_segments = - windows_union_gen_.GetRequestWindows(request, ctx.GetParameterRow(), union_inputs); + auto union_inputs = windows_union_gen_->RunInputs(*ctx); + auto union_segments = windows_union_gen_->GetRequestWindows(request, ctx->GetParameterRow(), union_inputs); // build window with start and end offset - return RequestUnionWindow(request, union_segments, ts_gen, range_gen_.window_range_, output_request_row_, + return RequestUnionWindow(request, union_segments, ts_gen, range_gen_->window_range_, output_request_row_, exclude_current_time_); } + std::shared_ptr RequestUnionRunner::RequestUnionWindow( const Row& request, std::vector> union_segments, int64_t ts_gen, const WindowRange& window_range, bool output_request_row, bool exclude_current_time) { @@ -2862,9 +2906,9 @@ std::shared_ptr RequestUnionRunner::RequestUnionWindow( request_key < range_start); if (output_request_row) { window_table->AddRow(request_key, request); - } - if (WindowRange::kInWindow == range_status) { - cnt++; + if (WindowRange::kInWindow == range_status) { + cnt++; + } } while (-1 != max_union_pos) { @@ -2941,16 +2985,26 @@ std::shared_ptr AggRunner::Run( LOG(WARNING) << "input is empty"; return std::shared_ptr(); } - if (kTableHandler != input->GetHandlerType()) { - return std::shared_ptr(); - } - auto table = std::dynamic_pointer_cast(input); - auto parameter = ctx.GetParameterRow(); - if (having_condition_.Valid() && !having_condition_.Gen(table, parameter)) { - return std::shared_ptr(); + + if (kTableHandler == input->GetHandlerType()) { + auto table = std::dynamic_pointer_cast(input); + auto parameter = ctx.GetParameterRow(); + if (having_condition_.Valid() && !having_condition_.Gen(table, parameter)) { + return std::shared_ptr(); + } + auto row_handler = std::shared_ptr(new MemRowHandler(agg_gen_->Gen(parameter, table))); + return row_handler; + } else if (kPartitionHandler == input->GetHandlerType()) { + // lazify + auto data_set = std::dynamic_pointer_cast(input); + if (data_set == nullptr) { + return std::shared_ptr(); + } + + return std::shared_ptr(new LazyAggPartitionHandler(data_set, agg_gen_, ctx.GetParameterRow())); } - auto row_handler = std::shared_ptr(new MemRowHandler(agg_gen_.Gen(parameter, table))); - return row_handler; + + return std::shared_ptr(); } std::shared_ptr ProxyRequestRunner::BatchRequestRun( RunnerContext& ctx) { diff --git a/hybridse/src/vm/runner.h b/hybridse/src/vm/runner.h index 64e712bbde7..a9d135b5e33 100644 --- a/hybridse/src/vm/runner.h +++ b/hybridse/src/vm/runner.h @@ -32,7 +32,6 @@ #include "node/node_manager.h" #include "vm/aggregator.h" #include "vm/catalog.h" -#include "vm/catalog_wrapper.h" #include "vm/core_api.h" #include "vm/generator.h" #include "vm/mem_catalog.h" @@ -354,13 +353,16 @@ class WindowUnionGenerator : public InputsGenerator { std::vector windows_gen_; }; -class RequestWindowUnionGenerator : public InputsGenerator { +class RequestWindowUnionGenerator : public InputsGenerator, + public std::enable_shared_from_this { public: - RequestWindowUnionGenerator() : InputsGenerator() {} + [[nodiscard]] static std::shared_ptr Create() { + return std::shared_ptr(new RequestWindowUnionGenerator()); + } virtual ~RequestWindowUnionGenerator() {} void AddWindowUnion(const RequestWindowOp& window_op, Runner* runner) { - windows_gen_.push_back(RequestWindowGenertor(window_op)); + windows_gen_.emplace_back(window_op); AddInput(runner); } @@ -373,6 +375,9 @@ class RequestWindowUnionGenerator : public InputsGenerator { return union_segments; } std::vector windows_gen_; + + private: + RequestWindowUnionGenerator() : InputsGenerator() {} }; class WindowJoinGenerator : public InputsGenerator { @@ -549,7 +554,7 @@ class GroupAggRunner : public Runner { : Runner(id, kRunnerGroupAgg, schema, limit_cnt), group_(group.fn_info()), having_condition_(having_condition.fn_info()), - agg_gen_(project) {} + agg_gen_(AggGenerator::Create(project)) {} ~GroupAggRunner() {} std::shared_ptr Run( RunnerContext& ctx, // NOLINT @@ -557,24 +562,22 @@ class GroupAggRunner : public Runner { override; // NOLINT KeyGenerator group_; ConditionGenerator having_condition_; - AggGenerator agg_gen_; + std::shared_ptr agg_gen_; }; class AggRunner : public Runner { public: - AggRunner(const int32_t id, const SchemasContext* schema, - const std::optional limit_cnt, - const ConditionFilter& having_condition, - const FnInfo& fn_info) + AggRunner(const int32_t id, const SchemasContext* schema, const std::optional limit_cnt, + const ConditionFilter& having_condition, const FnInfo& fn_info) : Runner(id, kRunnerAgg, schema, limit_cnt), having_condition_(having_condition.fn_info()), - agg_gen_(fn_info) {} + agg_gen_(AggGenerator::Create(fn_info)) {} ~AggRunner() {} std::shared_ptr Run( RunnerContext& ctx, // NOLINT const std::vector>& inputs) override; // NOLINT ConditionGenerator having_condition_; - AggGenerator agg_gen_; + std::shared_ptr agg_gen_; }; class ReduceRunner : public Runner { @@ -583,12 +586,12 @@ class ReduceRunner : public Runner { const ConditionFilter& having_condition, const FnInfo& fn_info) : Runner(id, kRunnerReduce, schema, limit_cnt), having_condition_(having_condition.fn_info()), - agg_gen_(fn_info) {} + agg_gen_(AggGenerator::Create(fn_info)) {} ~ReduceRunner() {} std::shared_ptr Run(RunnerContext& ctx, const std::vector>& inputs) override; ConditionGenerator having_condition_; - AggGenerator agg_gen_; + std::shared_ptr agg_gen_; }; class WindowAggRunner : public Runner { @@ -638,37 +641,39 @@ class WindowAggRunner : public Runner { class RequestUnionRunner : public Runner { public: - RequestUnionRunner(const int32_t id, const SchemasContext* schema, - const std::optional limit_cnt, const Range& range, - bool exclude_current_time, bool output_request_row) + RequestUnionRunner(const int32_t id, const SchemasContext* schema, const std::optional limit_cnt, + const Range& range, bool exclude_current_time, bool output_request_row) : Runner(id, kRunnerRequestUnion, schema, limit_cnt), - range_gen_(range), + range_gen_(RangeGenerator::Create(range)), exclude_current_time_(exclude_current_time), - output_request_row_(output_request_row) {} + output_request_row_(output_request_row) { + windows_union_gen_ = RequestWindowUnionGenerator::Create(); + } + + std::shared_ptr Run(RunnerContext& ctx, // NOLINT + const std::vector>& inputs) override; + + std::shared_ptr RunOneRequest(RunnerContext* ctx, const Row& request); - std::shared_ptr Run( - RunnerContext& ctx, // NOLINT - const std::vector>& inputs) - override; // NOLINT static std::shared_ptr RequestUnionWindow(const Row& request, std::vector> union_segments, int64_t request_ts, const WindowRange& window_range, bool output_request_row, bool exclude_current_time); void AddWindowUnion(const RequestWindowOp& window, Runner* runner) { - windows_union_gen_.AddWindowUnion(window, runner); + windows_union_gen_->AddWindowUnion(window, runner); } void Print(std::ostream& output, const std::string& tab, std::set* visited_ids) const override { Runner::Print(output, tab, visited_ids); output << "\n" << tab << "window unions:\n"; - for (auto& r : windows_union_gen_.input_runners_) { + for (auto& r : windows_union_gen_->input_runners_) { r->Print(output, tab + " ", visited_ids); } } - RequestWindowUnionGenerator windows_union_gen_; - RangeGenerator range_gen_; + std::shared_ptr windows_union_gen_; + std::shared_ptr range_gen_; bool exclude_current_time_; bool output_request_row_; }; @@ -679,11 +684,12 @@ class RequestAggUnionRunner : public Runner { const Range& range, bool exclude_current_time, bool output_request_row, const node::CallExprNode* project) : Runner(id, kRunnerRequestAggUnion, schema, limit_cnt), - range_gen_(range), + range_gen_(RangeGenerator::Create(range)), exclude_current_time_(exclude_current_time), output_request_row_(output_request_row), func_(project->GetFnDef()), agg_col_(project->GetChild(0)) { + windows_union_gen_ = RequestWindowUnionGenerator::Create(); if (agg_col_->GetExprType() == node::kExprColumnRef) { agg_col_name_ = dynamic_cast(agg_col_)->GetColumnName(); } /* for kAllExpr like count(*), agg_col_name_ is empty */ @@ -704,7 +710,7 @@ class RequestAggUnionRunner : public Runner { const bool output_request_row, const bool exclude_current_time) const; void AddWindowUnion(const RequestWindowOp& window, Runner* runner) { - windows_union_gen_.AddWindowUnion(window, runner); + windows_union_gen_->AddWindowUnion(window, runner); } static std::string PrintEvalValue(const absl::StatusOr>& val); @@ -723,8 +729,8 @@ class RequestAggUnionRunner : public Runner { kMaxWhere, }; - RequestWindowUnionGenerator windows_union_gen_; - RangeGenerator range_gen_; + std::shared_ptr windows_union_gen_; + std::shared_ptr range_gen_; bool exclude_current_time_; // include request row from union. diff --git a/hybridse/src/vm/transform.cc b/hybridse/src/vm/transform.cc index d52667dbc6f..a0340d41fbe 100644 --- a/hybridse/src/vm/transform.cc +++ b/hybridse/src/vm/transform.cc @@ -639,16 +639,13 @@ Status RequestModeTransformer::TransformWindowOp(PhysicalOpNode* depend, } case kPhysicalOpDataProvider: { auto data_op = dynamic_cast(depend); - CHECK_TRUE(data_op->provider_type_ == kProviderTypeRequest, - kPlanError, - "Do not support window on non-request input"); + CHECK_TRUE(data_op->provider_type_ != kProviderTypePartition, kPlanError, "data node already a partition"); auto name = data_op->table_handler_->GetName(); auto db_name = data_op->table_handler_->GetDatabase(); auto table = catalog_->GetTable(db_name, name); - CHECK_TRUE(table != nullptr, kPlanError, - "Fail to transform data provider op: table " + name + - "not exists"); + CHECK_TRUE(table != nullptr, kPlanError, "Fail to transform data provider op: table ", name, "not exists"); + PhysicalTableProviderNode* right = nullptr; CHECK_STATUS(CreateOp(&right, table)); @@ -657,6 +654,12 @@ Status RequestModeTransformer::TransformWindowOp(PhysicalOpNode* depend, data_op, right, table->GetDatabase(), table->GetName(), table->GetSchema(), nullptr, w_ptr, &request_union_op)); + if (data_op->provider_type_ == kProviderTypeTable && !request_union_op->instance_not_in_window()) { + // REQUEST_UNION(t1, t1) do not has request table, dont output reqeust row, + // but should output if REQUEST_UNION(t1, t1, unions=xxx, instance_not_in_window) + request_union_op->set_output_request_row(false); + } + if (!w_ptr->union_tables().empty()) { for (auto iter = w_ptr->union_tables().cbegin(); iter != w_ptr->union_tables().cend(); iter++) { @@ -1403,19 +1406,24 @@ Status BatchModeTransformer::CreatePhysicalProjectNode( } case kAggregation: { PhysicalAggregationNode* agg_op = nullptr; - CHECK_STATUS(CreateOp(&agg_op, depend, - column_projects, having_condition)); + CHECK_STATUS(CreateOp(&agg_op, depend, column_projects, having_condition)); *output = agg_op; break; } case kGroupAggregation: { - CHECK_TRUE(!node::ExprListNullOrEmpty(group_keys), kPlanError, - "Can not create group agg with non group keys"); + if (node::ExprListNullOrEmpty(group_keys)) { + PhysicalAggregationNode* agg_op = nullptr; + CHECK_STATUS(CreateOp(&agg_op, depend, column_projects, having_condition)); + *output = agg_op; + } else { + // CHECK_TRUE(!node::ExprListNullOrEmpty(group_keys), kPlanError, + // "Can not create group agg with non group keys"); - PhysicalGroupAggrerationNode* agg_op = nullptr; - CHECK_STATUS(CreateOp( - &agg_op, depend, column_projects, having_condition, group_keys)); - *output = agg_op; + PhysicalGroupAggrerationNode* agg_op = nullptr; + CHECK_STATUS(CreateOp(&agg_op, depend, column_projects, having_condition, + group_keys)); + *output = agg_op; + } break; } case kWindowAggregation: { @@ -1455,6 +1463,10 @@ base::Status BatchModeTransformer::ExtractGroupKeys(vm::PhysicalOpNode* depend, CHECK_STATUS(ExtractGroupKeys(depend->GetProducer(0), keys)) return base::Status::OK(); } + + if (depend->GetOpType() == kPhysicalOpRequestUnion) { + return base::Status::OK(); + } CHECK_TRUE(depend->GetOpType() == kPhysicalOpGroupBy, kPlanError, "Fail to extract group keys from op ", vm::PhysicalOpTypeName(depend->GetOpType())) *keys = dynamic_cast(depend)->group().keys_; @@ -1637,12 +1649,26 @@ Status BatchModeTransformer::ValidatePartitionDataProvider(PhysicalOpNode* in) { if (kPhysicalOpSimpleProject == in->GetOpType() || kPhysicalOpRename == in->GetOpType() || kPhysicalOpFilter == in->GetOpType()) { CHECK_STATUS(ValidatePartitionDataProvider(in->GetProducer(0))) + } else if (kPhysicalOpProject == in->GetOpType()) { + auto* prj = dynamic_cast(in); + CHECK_TRUE(prj->project_type_ == kAggregation, kPlanError, + "can't optimize project node: ", in->GetTreeString()); + CHECK_STATUS(ValidatePartitionDataProvider(in->GetProducer(0))); } else if (kPhysicalOpRequestJoin == in->GetOpType()) { CHECK_STATUS(ValidatePartitionDataProvider(in->GetProducer(0))); CHECK_STATUS(ValidatePartitionDataProvider(in->GetProducer(1))); + } else if (kPhysicalOpRequestUnion == in->GetOpType()) { + CHECK_STATUS(ValidatePartitionDataProvider(in->GetProducer(0))); + auto n = dynamic_cast(in); + if (!n->instance_not_in_window()) { + CHECK_STATUS(ValidatePartitionDataProvider(in->GetProducer(1))); + } + for (auto& window_union : n->window_unions().window_unions_) { + CHECK_STATUS(ValidateWindowIndexOptimization(window_union.second, window_union.first)); + } } else { CHECK_TRUE(kPhysicalOpDataProvider == in->GetOpType() && - kProviderTypePartition == dynamic_cast(in)->provider_type_, + kProviderTypeTable != dynamic_cast(in)->provider_type_, kPlanError, "Isn't partition provider:", in->GetTreeString()); } return Status::OK(); @@ -1667,7 +1693,7 @@ Status BatchModeTransformer::ValidateJoinIndexOptimization( return Status::OK(); } else { CHECK_STATUS(ValidatePartitionDataProvider(right), - "Join node hasn't been optimized"); + "Join node hasn't been optimized: right=", right->GetTreeString()); } return Status::OK(); } @@ -2423,7 +2449,7 @@ Status RequestModeTransformer::TransformScanOp(const node::TablePlanNode* node, } } Status RequestModeTransformer::ValidateRequestTable(PhysicalOpNode* in) { - auto req = ExtractRequestNode(in); + auto req = internal::ExtractRequestNode(in); CHECK_TRUE(req.ok(), kPlanError, req.status()); std::set> db_tables; @@ -2433,69 +2459,6 @@ Status RequestModeTransformer::ValidateRequestTable(PhysicalOpNode* in) { return Status::OK(); } -absl::StatusOr RequestModeTransformer::ExtractRequestNode(PhysicalOpNode* in) { - if (in == nullptr) { - return absl::InvalidArgumentError("null input node"); - } - - switch (in->GetOpType()) { - case vm::kPhysicalOpDataProvider: { - auto tp = dynamic_cast(in)->provider_type_; - if (tp == kProviderTypeRequest) { - return in; - } - - // else data provider is fine inside node tree, - // generally it is of type Partition, but can be Table as well e.g window (t1 instance_not_in_window) - return nullptr; - } - case vm::kPhysicalOpJoin: - case vm::kPhysicalOpUnion: - case vm::kPhysicalOpPostRequestUnion: - case vm::kPhysicalOpRequestUnion: - case vm::kPhysicalOpRequestAggUnion: - case vm::kPhysicalOpRequestJoin: { - // Binary Node - // - left or right status not ok -> error - // - left and right both has non-null value - // - the two not equals -> error - // - otherwise -> left as request node - auto left = ExtractRequestNode(in->GetProducer(0)); - if (!left.ok()) { - return left; - } - auto right = ExtractRequestNode(in->GetProducer(1)); - if (!right.ok()) { - return right; - } - - if (left.value() != nullptr && right.value() != nullptr) { - if (!left.value()->Equals(right.value())) { - return absl::NotFoundError( - absl::StrCat("different request table from left and right path:\n", in->GetTreeString())); - } - } - - return left.value(); - } - default: { - break; - } - } - - if (in->GetProducerCnt() == 0) { - // leaf node excepting DataProdiverNode - // consider ok as right source from one of the supported binary op - return nullptr; - } - - if (in->GetProducerCnt() > 1) { - return absl::UnimplementedError( - absl::StrCat("Non-support op with more than one producer:\n", in->GetTreeString())); - } - - return ExtractRequestNode(in->GetProducer(0)); -} // transform a single `ProjectListNode` of `ProjectPlanNode` Status RequestModeTransformer::TransformProjectOp( diff --git a/hybridse/src/vm/transform.h b/hybridse/src/vm/transform.h index caaf63b655d..45c4d9660e7 100644 --- a/hybridse/src/vm/transform.h +++ b/hybridse/src/vm/transform.h @@ -21,7 +21,6 @@ #include #include #include -#include #include #include "absl/base/attributes.h" @@ -29,7 +28,6 @@ #include "base/fe_status.h" #include "base/graph.h" #include "llvm/Bitcode/BitcodeWriter.h" -#include "llvm/Support/raw_ostream.h" #include "node/node_manager.h" #include "node/plan_node.h" #include "node/sql_node.h" @@ -323,13 +321,6 @@ class RequestModeTransformer : public BatchModeTransformer { // - do not has any physical table refered Status ValidateRequestTable(PhysicalOpNode* in); - // Extract request node of the node tree - // returns - // - Request node on success - // - NULL if tree do not has request table but sufficient as as input tree of the big one - // - Error status otherwise - static absl::StatusOr ExtractRequestNode(PhysicalOpNode* in); - private: // Optimize simple project node which is the producer of window project Status OptimizeSimpleProjectAsWindowProducer(PhysicalSimpleProjectNode* depend, diff --git a/src/sdk/sql_sdk_test.h b/src/sdk/sql_sdk_test.h index 58d72cf458a..5eaadde6623 100644 --- a/src/sdk/sql_sdk_test.h +++ b/src/sdk/sql_sdk_test.h @@ -50,6 +50,8 @@ INSTANTIATE_TEST_SUITE_P(SQLSDKLastJoinQuery, SQLSDKQueryTest, testing::ValuesIn(SQLSDKQueryTest::InitCases("cases/query/last_join_query.yaml"))); INSTANTIATE_TEST_SUITE_P(SQLSDKLastJoinWindowQuery, SQLSDKQueryTest, testing::ValuesIn(SQLSDKQueryTest::InitCases("cases/query/last_join_window_query.yaml"))); +INSTANTIATE_TEST_SUITE_P(SQLSDKLastJoinSubqueryWindow, SQLSDKQueryTest, + testing::ValuesIn(SQLSDKQueryTest::InitCases("cases/query/last_join_subquery_window.yml"))); INSTANTIATE_TEST_SUITE_P(SQLSDKLastJoinWhere, SQLSDKQueryTest, testing::ValuesIn(SQLSDKQueryTest::InitCases("cases/query/last_join_where.yaml"))); INSTANTIATE_TEST_SUITE_P(SQLSDKParameterizedQuery, SQLSDKQueryTest, From 71754ff2165a74080c148368981789cb0d65978d Mon Sep 17 00:00:00 2001 From: dl239 Date: Wed, 15 Nov 2023 10:17:17 +0800 Subject: [PATCH 096/111] feat: support compress (#3572) --- cases/plan/create.yaml | 37 ++++ .../sql/ddl/CREATE_TABLE_STATEMENT.md | 16 +- docs/en/reference/sql/ddl/DESC_STATEMENT.md | 10 +- .../sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md | 2 +- .../ddl/CREATE_TABLE_STATEMENT.md | 16 +- docs/zh/openmldb_sql/ddl/DESC_STATEMENT.md | 10 +- .../ddl/SHOW_CREATE_TABLE_STATEMENT.md | 2 +- hybridse/include/node/node_enum.h | 6 + hybridse/include/node/node_manager.h | 2 - hybridse/include/node/sql_node.h | 33 +++- hybridse/src/node/node_manager.cc | 5 - hybridse/src/node/plan_node_test.cc | 3 +- hybridse/src/node/sql_node.cc | 12 ++ hybridse/src/node/sql_node_test.cc | 2 +- hybridse/src/planv2/ast_node_converter.cc | 14 +- .../jdbc/RequestPreparedStatementTest.java | 49 +++-- onebox/start_onebox.sh | 2 + src/base/kv_iterator_test.cc | 16 +- src/catalog/distribute_iterator.cc | 23 ++- src/catalog/tablet_catalog.cc | 2 +- src/cmd/display.h | 23 +-- src/cmd/openmldb.cc | 33 +--- src/cmd/sql_cmd_test.cc | 49 ++++- src/codec/codec_bench_test.cc | 12 +- src/codec/codec_test.cc | 22 +-- src/codec/row_codec.cc | 79 ++------ src/codec/row_codec.h | 15 +- src/sdk/node_adapter.cc | 6 + src/sdk/sdk_util.cc | 5 + src/sdk/sql_cluster_router.cc | 6 +- src/sdk/sql_cluster_test.cc | 2 +- src/storage/disk_table.cc | 13 +- src/storage/disk_table_iterator.cc | 72 ++++--- src/storage/disk_table_iterator.h | 27 ++- src/storage/mem_table.cc | 19 +- src/storage/mem_table_iterator.cc | 34 +++- src/storage/mem_table_iterator.h | 16 +- src/storage/segment.cc | 29 +-- src/storage/segment.h | 9 +- src/storage/segment_test.cc | 12 +- src/tablet/tablet_impl.cc | 187 ++++-------------- src/tablet/tablet_impl.h | 9 +- src/tablet/tablet_impl_test.cc | 14 +- 43 files changed, 489 insertions(+), 466 deletions(-) diff --git a/cases/plan/create.yaml b/cases/plan/create.yaml index 315ec30a305..f1076934391 100644 --- a/cases/plan/create.yaml +++ b/cases/plan/create.yaml @@ -1035,3 +1035,40 @@ cases: +-kind: HIVE +-path: hdfs://path +-table_option_list: [] + + - id: 34 + desc: Create 指定压缩 + sql: | + create table t1( + column1 int, + column2 timestamp, + index(key=column1, ts=column2)) OPTIONS (compress_type="snappy"); + expect: + node_tree_str: | + +-node[CREATE] + +-table: t1 + +-IF NOT EXIST: 0 + +-column_desc_list[list]: + | +-0: + | | +-node[kColumnDesc] + | | +-column_name: column1 + | | +-column_type: int32 + | | +-NOT NULL: 0 + | +-1: + | | +-node[kColumnDesc] + | | +-column_name: column2 + | | +-column_type: timestamp + | | +-NOT NULL: 0 + | +-2: + | +-node[kColumnIndex] + | +-keys: [column1] + | +-ts_col: column2 + | +-abs_ttl: -2 + | +-lat_ttl: -2 + | +-ttl_type: + | +-version_column: + | +-version_count: 0 + +-table_option_list[list]: + +-0: + +-node[kCompressType] + +-compress_type: snappy diff --git a/docs/en/reference/sql/ddl/CREATE_TABLE_STATEMENT.md b/docs/en/reference/sql/ddl/CREATE_TABLE_STATEMENT.md index a0d11d90657..ba62cf55231 100644 --- a/docs/en/reference/sql/ddl/CREATE_TABLE_STATEMENT.md +++ b/docs/en/reference/sql/ddl/CREATE_TABLE_STATEMENT.md @@ -473,6 +473,11 @@ StorageMode ::= 'Memory' | 'HDD' | 'SSD' +CompressTypeOption + ::= 'COMPRESS_TYPE' '=' CompressType +CompressType + ::= 'NoCompress' + | 'Snappy ``` @@ -484,6 +489,7 @@ StorageMode | `REPLICANUM` | It defines the number of replicas for the table. Note that the number of replicas is only configurable in Cluster version. | `OPTIONS (REPLICANUM=3)` | | `DISTRIBUTION` | It defines the distributed node endpoint configuration. Generally, it contains a Leader node and several followers. `(leader, [follower1, follower2, ..])`. Without explicit configuration, OpenMLDB will automatically configure `DISTRIBUTION` according to the environment and nodes. | `DISTRIBUTION = [ ('127.0.0.1:6527', [ '127.0.0.1:6528','127.0.0.1:6529' ])]` | | `STORAGE_MODE` | It defines the storage mode of the table. The supported modes are `Memory`, `HDD` and `SSD`. When not explicitly configured, it defaults to `Memory`.
    If you need to support a storage mode other than `Memory` mode, `tablet` requires additional configuration options. For details, please refer to [tablet configuration file **conf/tablet.flags**](../../../deploy/conf.md#the-configuration-file-for-apiserver:-conf/tablet.flags). | `OPTIONS (STORAGE_MODE='HDD')` | +| `COMPRESS_TYPE` | It defines the compress types of the table. The supported compress type are `NoCompress` and `Snappy`. The default value is `NoCompress` | `OPTIONS (COMPRESS_TYPE='Snappy')` #### The Difference between Disk Table and Memory Table @@ -515,11 +521,11 @@ DESC t1; --- -------------------- ------ ---------- ------ --------------- 1 INDEX_0_1651143735 col1 std_time 0min kAbsoluteTime --- -------------------- ------ ---------- ------ --------------- - -------------- - storage_mode - -------------- - HDD - -------------- + --------------- -------------- + compress_type storage_mode + --------------- -------------- + NoCompress HDD + --------------- -------------- ``` The following sql command create a table with specified distribution. ```sql diff --git a/docs/en/reference/sql/ddl/DESC_STATEMENT.md b/docs/en/reference/sql/ddl/DESC_STATEMENT.md index 8179c952c56..a7d288064bb 100644 --- a/docs/en/reference/sql/ddl/DESC_STATEMENT.md +++ b/docs/en/reference/sql/ddl/DESC_STATEMENT.md @@ -56,11 +56,11 @@ desc t1; --- -------------------- ------ ---------- ---------- --------------- 1 INDEX_0_1658136511 col1 std_time 43200min kAbsoluteTime --- -------------------- ------ ---------- ---------- --------------- - -------------- - storage_mode - -------------- - Memory - -------------- + --------------- -------------- + compress_type storage_mode + --------------- -------------- + NoCompress Memory + --------------- -------------- ``` diff --git a/docs/en/reference/sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md b/docs/en/reference/sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md index dd411410e65..967ebce316a 100644 --- a/docs/en/reference/sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md +++ b/docs/en/reference/sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md @@ -21,7 +21,7 @@ show create table t1; `c3` bigInt, `c4` timestamp, INDEX (KEY=`c1`, TS=`c4`, TTL_TYPE=ABSOLUTE, TTL=0m) - ) OPTIONS (PARTITIONNUM=8, REPLICANUM=2, STORAGE_MODE='HDD'); + ) OPTIONS (PARTITIONNUM=8, REPLICANUM=2, STORAGE_MODE='HDD', COMPRESS_TYPE='NoCompress'); ------- --------------------------------------------------------------- 1 rows in set diff --git a/docs/zh/openmldb_sql/ddl/CREATE_TABLE_STATEMENT.md b/docs/zh/openmldb_sql/ddl/CREATE_TABLE_STATEMENT.md index 1dffc9d4cae..a44f699eed3 100644 --- a/docs/zh/openmldb_sql/ddl/CREATE_TABLE_STATEMENT.md +++ b/docs/zh/openmldb_sql/ddl/CREATE_TABLE_STATEMENT.md @@ -450,6 +450,11 @@ StorageMode ::= 'Memory' | 'HDD' | 'SSD' +CompressTypeOption + ::= 'COMPRESS_TYPE' '=' CompressType +CompressType + ::= 'NoCompress' + | 'Snappy' ``` @@ -460,6 +465,7 @@ StorageMode | `REPLICANUM` | 配置表的副本数。请注意,副本数只有在集群版中才可以配置。 | `OPTIONS (REPLICANUM=3)` | | `DISTRIBUTION` | 配置分布式的节点endpoint。一般包含一个Leader节点和若干Follower节点。`(leader, [follower1, follower2, ..])`。不显式配置时,OpenMLDB会自动根据环境和节点来配置`DISTRIBUTION`。 | `DISTRIBUTION = [ ('127.0.0.1:6527', [ '127.0.0.1:6528','127.0.0.1:6529' ])]` | | `STORAGE_MODE` | 表的存储模式,支持的模式有`Memory`、`HDD`或`SSD`。不显式配置时,默认为`Memory`。
    如果需要支持非`Memory`模式的存储模式,`tablet`需要额外的配置选项,具体可参考[tablet配置文件 conf/tablet.flags](../../../deploy/conf.md)。 | `OPTIONS (STORAGE_MODE='HDD')` | +| `COMPRESS_TYPE` | 指定表的压缩类型。目前只支持Snappy压缩, 。默认为 `NoCompress` 即不压缩。 | `OPTIONS (COMPRESS_TYPE='Snappy')` #### 磁盘表与内存表区别 - 磁盘表对应`STORAGE_MODE`的取值为`HDD`或`SSD`。内存表对应的`STORAGE_MODE`取值为`Memory`。 @@ -488,11 +494,11 @@ DESC t1; --- -------------------- ------ ---------- ------ --------------- 1 INDEX_0_1651143735 col1 std_time 0min kAbsoluteTime --- -------------------- ------ ---------- ------ --------------- - -------------- - storage_mode - -------------- - HDD - -------------- + --------------- -------------- + compress_type storage_mode + --------------- -------------- + NoCompress HDD + --------------- -------------- ``` 创建一张表,指定分片的分布状态 ```sql diff --git a/docs/zh/openmldb_sql/ddl/DESC_STATEMENT.md b/docs/zh/openmldb_sql/ddl/DESC_STATEMENT.md index 1088411dc03..ca0d0de87bf 100644 --- a/docs/zh/openmldb_sql/ddl/DESC_STATEMENT.md +++ b/docs/zh/openmldb_sql/ddl/DESC_STATEMENT.md @@ -56,11 +56,11 @@ desc t1; --- -------------------- ------ ---------- ---------- --------------- 1 INDEX_0_1658136511 col1 std_time 43200min kAbsoluteTime --- -------------------- ------ ---------- ---------- --------------- - -------------- - storage_mode - -------------- - Memory - -------------- + --------------- -------------- + compress_type storage_mode + --------------- -------------- + NoCompress Memory + --------------- -------------- ``` diff --git a/docs/zh/openmldb_sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md b/docs/zh/openmldb_sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md index e697f687846..22c08fb754e 100644 --- a/docs/zh/openmldb_sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md +++ b/docs/zh/openmldb_sql/ddl/SHOW_CREATE_TABLE_STATEMENT.md @@ -21,7 +21,7 @@ show create table t1; `c3` bigInt, `c4` timestamp, INDEX (KEY=`c1`, TS=`c4`, TTL_TYPE=ABSOLUTE, TTL=0m) - ) OPTIONS (PARTITIONNUM=8, REPLICANUM=2, STORAGE_MODE='HDD'); + ) OPTIONS (PARTITIONNUM=8, REPLICANUM=2, STORAGE_MODE='HDD', COMPRESS_TYPE='NoCompress'); ------- --------------------------------------------------------------- 1 rows in set diff --git a/hybridse/include/node/node_enum.h b/hybridse/include/node/node_enum.h index 16e18291478..b903eaafdd5 100644 --- a/hybridse/include/node/node_enum.h +++ b/hybridse/include/node/node_enum.h @@ -97,6 +97,7 @@ enum SqlNodeType { kWithClauseEntry, kAlterTableStmt, kShowStmt, + kCompressType, kSqlNodeTypeLast, // debug type }; @@ -342,6 +343,11 @@ enum StorageMode { kHDD = 3, }; +enum CompressType { + kNoCompress = 0, + kSnappy = 1, +}; + // batch plan node type enum BatchPlanNodeType { kBatchDataset, kBatchPartition, kBatchMap }; diff --git a/hybridse/include/node/node_manager.h b/hybridse/include/node/node_manager.h index ab87e588a53..e70f0a59564 100644 --- a/hybridse/include/node/node_manager.h +++ b/hybridse/include/node/node_manager.h @@ -399,8 +399,6 @@ class NodeManager { SqlNode *MakeReplicaNumNode(int num); - SqlNode *MakeStorageModeNode(StorageMode storage_mode); - SqlNode *MakePartitionNumNode(int num); SqlNode *MakeDistributionsNode(const NodePointVector& distribution_list); diff --git a/hybridse/include/node/sql_node.h b/hybridse/include/node/sql_node.h index dcf162a96ab..30f7a6cc34a 100644 --- a/hybridse/include/node/sql_node.h +++ b/hybridse/include/node/sql_node.h @@ -25,6 +25,7 @@ #include #include "absl/status/statusor.h" +#include "absl/strings/match.h" #include "absl/strings/str_cat.h" #include "absl/strings/string_view.h" #include "boost/algorithm/string.hpp" @@ -309,17 +310,26 @@ inline const std::string StorageModeName(StorageMode mode) { } inline const StorageMode NameToStorageMode(const std::string& name) { - if (boost::iequals(name, "memory")) { + if (absl::EqualsIgnoreCase(name, "memory")) { return kMemory; - } else if (boost::iequals(name, "hdd")) { + } else if (absl::EqualsIgnoreCase(name, "hdd")) { return kHDD; - } else if (boost::iequals(name, "ssd")) { + } else if (absl::EqualsIgnoreCase(name, "ssd")) { return kSSD; } else { return kUnknown; } } +inline absl::StatusOr NameToCompressType(const std::string& name) { + if (absl::EqualsIgnoreCase(name, "snappy")) { + return CompressType::kSnappy; + } else if (absl::EqualsIgnoreCase(name, "nocompress")) { + return CompressType::kNoCompress; + } + return absl::Status(absl::StatusCode::kInvalidArgument, absl::StrCat("invalid compress type: ", name)); +} + inline const std::string RoleTypeName(RoleType type) { switch (type) { case kLeader: @@ -1884,6 +1894,23 @@ class StorageModeNode : public SqlNode { StorageMode storage_mode_; }; +class CompressTypeNode : public SqlNode { + public: + CompressTypeNode() : SqlNode(kCompressType, 0, 0), compress_type_(kNoCompress) {} + + explicit CompressTypeNode(CompressType compress_type) + : SqlNode(kCompressType, 0, 0), compress_type_(compress_type) {} + + ~CompressTypeNode() {} + + CompressType GetCompressType() const { return compress_type_; } + + void Print(std::ostream &output, const std::string &org_tab) const; + + private: + CompressType compress_type_; +}; + class CreateTableLikeClause { public: CreateTableLikeClause() = default; diff --git a/hybridse/src/node/node_manager.cc b/hybridse/src/node/node_manager.cc index 8f6f80d7517..f60ba20d6b2 100644 --- a/hybridse/src/node/node_manager.cc +++ b/hybridse/src/node/node_manager.cc @@ -1031,11 +1031,6 @@ SqlNode *NodeManager::MakeReplicaNumNode(int num) { return RegisterNode(node_ptr); } -SqlNode *NodeManager::MakeStorageModeNode(StorageMode storage_mode) { - SqlNode *node_ptr = new StorageModeNode(storage_mode); - return RegisterNode(node_ptr); -} - SqlNode *NodeManager::MakePartitionNumNode(int num) { SqlNode *node_ptr = new PartitionNumNode(num); return RegisterNode(node_ptr); diff --git a/hybridse/src/node/plan_node_test.cc b/hybridse/src/node/plan_node_test.cc index 4f0d55d0166..5ffb76142a7 100644 --- a/hybridse/src/node/plan_node_test.cc +++ b/hybridse/src/node/plan_node_test.cc @@ -239,7 +239,8 @@ TEST_F(PlanNodeTest, ExtractColumnsAndIndexsTest) { manager_->MakeColumnDescNode("col3", node::kFloat, true), manager_->MakeColumnDescNode("col4", node::kVarchar, true), manager_->MakeColumnDescNode("col5", node::kTimestamp, true), index_node}, - {manager_->MakeReplicaNumNode(3), manager_->MakePartitionNumNode(8), manager_->MakeStorageModeNode(kMemory)}, + {manager_->MakeReplicaNumNode(3), manager_->MakePartitionNumNode(8), + manager_->MakeNode(kMemory)}, false); ASSERT_TRUE(nullptr != node); std::vector columns; diff --git a/hybridse/src/node/sql_node.cc b/hybridse/src/node/sql_node.cc index 6fa2a82d42a..3847366c148 100644 --- a/hybridse/src/node/sql_node.cc +++ b/hybridse/src/node/sql_node.cc @@ -1168,6 +1168,7 @@ static absl::flat_hash_map CreateSqlNodeTypeToNa {kReplicaNum, "kReplicaNum"}, {kPartitionNum, "kPartitionNum"}, {kStorageMode, "kStorageMode"}, + {kCompressType, "kCompressType"}, {kFn, "kFn"}, {kFnParaList, "kFnParaList"}, {kCreateSpStmt, "kCreateSpStmt"}, @@ -2603,6 +2604,17 @@ void StorageModeNode::Print(std::ostream &output, const std::string &org_tab) co PrintValue(output, tab, StorageModeName(storage_mode_), "storage_mode", true); } +void CompressTypeNode::Print(std::ostream &output, const std::string &org_tab) const { + SqlNode::Print(output, org_tab); + const std::string tab = org_tab + INDENT + SPACE_ED; + output << "\n"; + if (compress_type_ == CompressType::kSnappy) { + PrintValue(output, tab, "snappy", "compress_type", true); + } else { + PrintValue(output, tab, "nocompress", "compress_type", true); + } +} + void PartitionNumNode::Print(std::ostream &output, const std::string &org_tab) const { SqlNode::Print(output, org_tab); const std::string tab = org_tab + INDENT + SPACE_ED; diff --git a/hybridse/src/node/sql_node_test.cc b/hybridse/src/node/sql_node_test.cc index 545d9b647fd..227cb80dcea 100644 --- a/hybridse/src/node/sql_node_test.cc +++ b/hybridse/src/node/sql_node_test.cc @@ -676,7 +676,7 @@ TEST_F(SqlNodeTest, CreateIndexNodeTest) { node_manager_->MakeColumnDescNode("col4", node::kVarchar, true), node_manager_->MakeColumnDescNode("col5", node::kTimestamp, true), index_node}, {node_manager_->MakeReplicaNumNode(3), node_manager_->MakePartitionNumNode(8), - node_manager_->MakeStorageModeNode(kMemory)}, + node_manager_->MakeNode(kMemory)}, false); ASSERT_TRUE(nullptr != node); std::vector columns; diff --git a/hybridse/src/planv2/ast_node_converter.cc b/hybridse/src/planv2/ast_node_converter.cc index c0c3864716b..affb85f91bc 100644 --- a/hybridse/src/planv2/ast_node_converter.cc +++ b/hybridse/src/planv2/ast_node_converter.cc @@ -1761,8 +1761,18 @@ base::Status ConvertTableOption(const zetasql::ASTOptionsEntry* entry, node::Nod } else if (absl::EqualsIgnoreCase("storage_mode", identifier_v)) { std::string storage_mode; CHECK_STATUS(AstStringLiteralToString(entry->value(), &storage_mode)); - boost::to_lower(storage_mode); - *output = node_manager->MakeStorageModeNode(node::NameToStorageMode(storage_mode)); + absl::AsciiStrToLower(&storage_mode); + *output = node_manager->MakeNode(node::NameToStorageMode(storage_mode)); + } else if (absl::EqualsIgnoreCase("compress_type", identifier_v)) { + std::string compress_type; + CHECK_STATUS(AstStringLiteralToString(entry->value(), &compress_type)); + absl::AsciiStrToLower(&compress_type); + auto ret = node::NameToCompressType(compress_type); + if (ret.ok()) { + *output = node_manager->MakeNode(*ret); + } else { + return base::Status(common::kSqlAstError, ret.status().ToString()); + } } else { return base::Status(common::kSqlAstError, absl::StrCat("invalid option ", identifier)); } diff --git a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java index dc520b74221..8f621f862e9 100644 --- a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java +++ b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java @@ -23,6 +23,7 @@ import java.sql.*; import org.testng.Assert; +import org.testng.annotations.DataProvider; import org.testng.annotations.Test; import java.sql.PreparedStatement; @@ -49,20 +50,30 @@ public class RequestPreparedStatementTest { } } - @Test - public void testRequest() { + @DataProvider(name = "createOption") + Object[][] getCreateParm() { + return new Object[][] { {"NoCompress", "Memory"}, + {"NoCompress", "HDD"}, + {"Snappy", "Memory"}, + {"Snappy", "HDD"} }; + } + + @Test(dataProvider = "createOption") + public void testRequest(String compressType, String storageMode) { String dbname = "db" + random.nextInt(100000); executor.dropDB(dbname); boolean ok = executor.createDB(dbname); Assert.assertTrue(ok); - String createTableSql = "create table trans(c1 string,\n" + + String baseSql = "create table trans(c1 string,\n" + " c3 int,\n" + " c4 bigint,\n" + " c5 float,\n" + " c6 double,\n" + " c7 timestamp,\n" + " c8 date,\n" + - " index(key=c1, ts=c7));"; + " index(key=c1, ts=c7))\n "; + String createTableSql = String.format("%s OPTIONS (compress_type='%s', storage_mode='%s');", + baseSql, compressType, storageMode); executor.executeDDL(dbname, createTableSql); String insertSql = "insert into trans values(\"aa\",23,33,1.4,2.4,1590738993000,\"2020-05-04\");"; PreparedStatement pstmt = null; @@ -127,8 +138,8 @@ public void testRequest() { } } - @Test - public void testDeploymentRequest() { + @Test(dataProvider = "createOption") + public void testDeploymentRequest(String compressType, String storageMode) { java.sql.Statement state = executor.getStatement(); String dbname = "db" + random.nextInt(100000); String deploymentName = "dp_test1"; @@ -136,14 +147,16 @@ public void testDeploymentRequest() { state.execute("drop database if exists " + dbname + ";"); state.execute("create database " + dbname + ";"); state.execute("use " + dbname + ";"); - String createTableSql = "create table trans(c1 string,\n" + + String baseSql = "create table trans(c1 string,\n" + " c3 int,\n" + " c4 bigint,\n" + " c5 float,\n" + " c6 double,\n" + " c7 timestamp,\n" + " c8 date,\n" + - " index(key=c1, ts=c7));"; + " index(key=c1, ts=c7))"; + String createTableSql = String.format(" %s OPTIONS (compress_type='%s', storage_mode='%s');", + baseSql, compressType, storageMode); state.execute(createTableSql); String selectSql = "SELECT c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM trans WINDOW w1 AS " + "(PARTITION BY trans.c1 ORDER BY trans.c7 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW);"; @@ -217,20 +230,22 @@ public void testDeploymentRequest() { } } - @Test - public void testBatchRequest() { + @Test(dataProvider = "createOption") + public void testBatchRequest(String compressType, String storageMode) { String dbname = "db" + random.nextInt(100000); executor.dropDB(dbname); boolean ok = executor.createDB(dbname); Assert.assertTrue(ok); - String createTableSql = "create table trans(c1 string,\n" + + String baseSql = "create table trans(c1 string,\n" + " c3 int,\n" + " c4 bigint,\n" + " c5 float,\n" + " c6 double,\n" + " c7 timestamp,\n" + " c8 date,\n" + - " index(key=c1, ts=c7));"; + " index(key=c1, ts=c7))"; + String createTableSql = String.format(" %s OPTIONS (compress_type='%s', storage_mode='%s');", + baseSql, compressType, storageMode); executor.executeDDL(dbname, createTableSql); String insertSql = "insert into trans values(\"aa\",23,33,1.4,2.4,1590738993000,\"2020-05-04\");"; PreparedStatement pstmt = null; @@ -302,8 +317,8 @@ public void testBatchRequest() { } } - @Test - public void testDeploymentBatchRequest() { + @Test(dataProvider = "createOption") + public void testDeploymentBatchRequest(String compressType, String storageMode) { java.sql.Statement state = executor.getStatement(); String dbname = "db" + random.nextInt(100000); String deploymentName = "dp_test1"; @@ -311,14 +326,16 @@ public void testDeploymentBatchRequest() { state.execute("drop database if exists " + dbname + ";"); state.execute("create database " + dbname + ";"); state.execute("use " + dbname + ";"); - String createTableSql = "create table trans(c1 string,\n" + + String baseSql = "create table trans(c1 string,\n" + " c3 int,\n" + " c4 bigint,\n" + " c5 float,\n" + " c6 double,\n" + " c7 timestamp,\n" + " c8 date,\n" + - " index(key=c1, ts=c7));"; + " index(key=c1, ts=c7))"; + String createTableSql = String.format(" %s OPTIONS (compress_type='%s', storage_mode='%s');", + baseSql, compressType, storageMode); state.execute(createTableSql); String selectSql = "SELECT c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM trans WINDOW w1 AS " + "(PARTITION BY trans.c1 ORDER BY trans.c7 ROWS BETWEEN 2 PRECEDING AND CURRENT ROW);"; diff --git a/onebox/start_onebox.sh b/onebox/start_onebox.sh index 639e409b37c..1d92dc7cb62 100755 --- a/onebox/start_onebox.sh +++ b/onebox/start_onebox.sh @@ -75,6 +75,8 @@ cluster_start_component() { --zk_keep_alive_check_interval=60000 --db_root_path="$binlog_dir" --recycle_bin_root_path="$recycle_bin_dir" + --hdd_root_path="$binlog_dir" + --recycle_bin_hdd_root_path="$recycle_bin_dir" ) elif [[ $role = 'nameserver' ]]; then extra_opts+=( diff --git a/src/base/kv_iterator_test.cc b/src/base/kv_iterator_test.cc index 3c35d6ba472..11e4228c5b3 100644 --- a/src/base/kv_iterator_test.cc +++ b/src/base/kv_iterator_test.cc @@ -77,13 +77,12 @@ TEST_F(KvIteratorTest, Iterator) { TEST_F(KvIteratorTest, HasPK) { auto response = std::make_shared<::openmldb::api::TraverseResponse>(); - std::string* pairs = response->mutable_pairs(); - pairs->resize(52); - char* data = reinterpret_cast(&((*pairs)[0])); ::openmldb::storage::DataBlock* db1 = new ::openmldb::storage::DataBlock(1, "hello", 5); ::openmldb::storage::DataBlock* db2 = new ::openmldb::storage::DataBlock(1, "hell1", 5); - ::openmldb::codec::EncodeFull("test1", 9527, db1, data, 0); - ::openmldb::codec::EncodeFull("test2", 9528, db2, data, 26); + butil::IOBuf buf; + ::openmldb::codec::EncodeFull("test1", 9527, db1->data, db1->size, &buf); + ::openmldb::codec::EncodeFull("test2", 9528, db2->data, db2->size, &buf); + buf.copy_to(response->mutable_pairs()); TraverseKvIterator kv_it(response); ASSERT_TRUE(kv_it.Valid()); ASSERT_STREQ("test1", kv_it.GetPK().c_str()); @@ -100,19 +99,18 @@ TEST_F(KvIteratorTest, HasPK) { TEST_F(KvIteratorTest, NextPK) { auto response = std::make_shared<::openmldb::api::TraverseResponse>(); - std::string* pairs = response->mutable_pairs(); - pairs->resize(16*9 + 90); std::string value("hello"); - char* data = reinterpret_cast(&((*pairs)[0])); uint32_t offset = 0; + butil::IOBuf buf; for (int i = 0; i < 3; i++) { std::string pk = "test" + std::to_string(i); uint64_t ts = 9500; for (int j = 0; j < 3; j++) { - ::openmldb::codec::EncodeFull(pk, ts - j, value.data(), value.size(), data, offset); + ::openmldb::codec::EncodeFull(pk, ts - j, value.data(), value.size(), &buf); offset += 16 + 10; } } + buf.copy_to(response->mutable_pairs()); TraverseKvIterator kv_it(response); int count = 0; while (kv_it.Valid()) { diff --git a/src/catalog/distribute_iterator.cc b/src/catalog/distribute_iterator.cc index e99431728d5..b82afbb81fd 100644 --- a/src/catalog/distribute_iterator.cc +++ b/src/catalog/distribute_iterator.cc @@ -175,20 +175,19 @@ const ::hybridse::codec::Row& FullTableIterator::GetValue() { } valid_value_ = true; + base::Slice slice_row; if (it_ && it_->Valid()) { - value_ = ::hybridse::codec::Row( - ::hybridse::base::RefCountedSlice::Create(it_->GetValue().data(), it_->GetValue().size())); - return value_; + slice_row = it_->GetValue(); } else { - auto slice_row = kv_it_->GetValue(); - size_t sz = slice_row.size(); - int8_t* copyed_row_data = reinterpret_cast(malloc(sz)); - memcpy(copyed_row_data, slice_row.data(), sz); - auto shared_slice = ::hybridse::base::RefCountedSlice::CreateManaged(copyed_row_data, sz); - buffered_slices_.push_back(shared_slice); - value_.Reset(shared_slice); - return value_; + slice_row = kv_it_->GetValue(); } + size_t sz = slice_row.size(); + int8_t* copyed_row_data = reinterpret_cast(malloc(sz)); + memcpy(copyed_row_data, slice_row.data(), sz); + auto shared_slice = ::hybridse::base::RefCountedSlice::CreateManaged(copyed_row_data, sz); + buffered_slices_.push_back(shared_slice); + value_.Reset(shared_slice); + return value_; } DistributeWindowIterator::DistributeWindowIterator(uint32_t tid, uint32_t pid_num, std::shared_ptr tables, @@ -424,7 +423,7 @@ const ::hybridse::codec::Row& RemoteWindowIterator::GetValue() { memcpy(copyed_row_data, slice_row.data(), sz); auto shared_slice = ::hybridse::base::RefCountedSlice::CreateManaged(copyed_row_data, sz); row_.Reset(shared_slice); - DLOG(INFO) << "get value pk " << pk_ << " ts_key " << kv_it_->GetKey() << " ts " << ts_; + LOG(INFO) << "get value pk " << pk_ << " ts_key " << kv_it_->GetKey() << " ts " << ts_; valid_value_ = true; return row_; } diff --git a/src/catalog/tablet_catalog.cc b/src/catalog/tablet_catalog.cc index a9e74ff7061..cdf979167fc 100644 --- a/src/catalog/tablet_catalog.cc +++ b/src/catalog/tablet_catalog.cc @@ -503,7 +503,7 @@ bool TabletCatalog::UpdateTableInfo(const ::openmldb::nameserver::TableInfo& tab return false; } db_it->second.emplace(table_name, handler); - LOG(INFO) << "add table " << table_name << "to db " << db_name << " tid " << table_info.tid(); + LOG(INFO) << "add table " << table_name << " to db " << db_name << " tid " << table_info.tid(); } if (bool updated = false; !handler->Update(table_info, client_manager_, &updated)) { return false; diff --git a/src/cmd/display.h b/src/cmd/display.h index 518d68463de..714a9ca6a73 100644 --- a/src/cmd/display.h +++ b/src/cmd/display.h @@ -147,7 +147,7 @@ __attribute__((unused)) static void PrintColumnKey( stream << t; } -__attribute__((unused)) static void ShowTableRows(bool is_compress, ::openmldb::codec::SDKCodec* codec, +__attribute__((unused)) static void ShowTableRows(::openmldb::codec::SDKCodec* codec, ::openmldb::cmd::SDKIterator* it) { std::vector row = codec->GetColNames(); if (!codec->HasTSCol()) { @@ -161,12 +161,7 @@ __attribute__((unused)) static void ShowTableRows(bool is_compress, ::openmldb:: while (it->Valid()) { std::vector vrow; openmldb::base::Slice data = it->GetValue(); - std::string value; - if (is_compress) { - ::snappy::Uncompress(data.data(), data.size(), &value); - } else { - value.assign(data.data(), data.size()); - } + std::string value(data.data(), data.size()); codec->DecodeRow(value, &vrow); if (!codec->HasTSCol()) { vrow.insert(vrow.begin(), std::to_string(it->GetKey())); @@ -187,19 +182,16 @@ __attribute__((unused)) static void ShowTableRows(bool is_compress, ::openmldb:: __attribute__((unused)) static void ShowTableRows(const ::openmldb::api::TableMeta& table_info, ::openmldb::cmd::SDKIterator* it) { ::openmldb::codec::SDKCodec codec(table_info); - bool is_compress = table_info.compress_type() == ::openmldb::type::CompressType::kSnappy ? true : false; - ShowTableRows(is_compress, &codec, it); + ShowTableRows(&codec, it); } __attribute__((unused)) static void ShowTableRows(const ::openmldb::nameserver::TableInfo& table_info, ::openmldb::cmd::SDKIterator* it) { ::openmldb::codec::SDKCodec codec(table_info); - bool is_compress = table_info.compress_type() == ::openmldb::type::CompressType::kSnappy ? true : false; - ShowTableRows(is_compress, &codec, it); + ShowTableRows(&codec, it); } -__attribute__((unused)) static void ShowTableRows(const std::string& key, ::openmldb::cmd::SDKIterator* it, - const ::openmldb::type::CompressType compress_type) { +__attribute__((unused)) static void ShowTableRows(const std::string& key, ::openmldb::cmd::SDKIterator* it) { ::baidu::common::TPrinter tp(4, FLAGS_max_col_display_length); std::vector row; row.push_back("#"); @@ -210,11 +202,6 @@ __attribute__((unused)) static void ShowTableRows(const std::string& key, ::open uint32_t index = 1; while (it->Valid()) { std::string value = it->GetValue().ToString(); - if (compress_type == ::openmldb::type::CompressType::kSnappy) { - std::string uncompressed; - ::snappy::Uncompress(value.c_str(), value.length(), &uncompressed); - value = uncompressed; - } row.clear(); row.push_back(std::to_string(index)); row.push_back(key); diff --git a/src/cmd/openmldb.cc b/src/cmd/openmldb.cc index 3cf22b2df6d..d132190f588 100644 --- a/src/cmd/openmldb.cc +++ b/src/cmd/openmldb.cc @@ -18,7 +18,6 @@ #include #include #include -#include #include #include @@ -341,11 +340,6 @@ ::openmldb::base::Status PutSchemaData(const ::openmldb::nameserver::TableInfo& return ::openmldb::base::Status(-1, "Encode data error"); } - if (table_info.compress_type() == ::openmldb::type::CompressType::kSnappy) { - std::string compressed; - ::snappy::Compress(value.c_str(), value.length(), &compressed); - value = compressed; - } const int tid = table_info.tid(); PutData(tid, dimensions, ts, value, table_info.table_partition()); @@ -1396,11 +1390,6 @@ void HandleNSGet(const std::vector& parts, ::openmldb::client::NsCl std::string msg; bool ok = tb_client->Get(tid, pid, key, timestamp, value, ts, msg); if (ok) { - if (tables[0].compress_type() == ::openmldb::type::CompressType::kSnappy) { - std::string uncompressed; - ::snappy::Uncompress(value.c_str(), value.length(), &uncompressed); - value = uncompressed; - } std::cout << "value :" << value << std::endl; } else { std::cout << "Get failed. error msg: " << msg << std::endl; @@ -1447,11 +1436,6 @@ void HandleNSGet(const std::vector& parts, ::openmldb::client::NsCl return; } } - if (tables[0].compress_type() == ::openmldb::type::CompressType::kSnappy) { - std::string uncompressed; - ::snappy::Uncompress(value.c_str(), value.length(), &uncompressed); - value.swap(uncompressed); - } row.clear(); codec.DecodeRow(value, &row); ::openmldb::cmd::TransferString(&row); @@ -1588,7 +1572,7 @@ void HandleNSScan(const std::vector& parts, ::openmldb::client::NsC std::vector> iter_vec; iter_vec.push_back(std::move(it)); ::openmldb::cmd::SDKIterator sdk_it(iter_vec, limit); - ::openmldb::cmd::ShowTableRows(key, &sdk_it, tables[0].compress_type()); + ::openmldb::cmd::ShowTableRows(key, &sdk_it); } } else { if (parts.size() < 6) { @@ -1848,25 +1832,14 @@ void HandleNSPreview(const std::vector& parts, ::openmldb::client:: row.push_back(std::to_string(index)); if (no_schema) { - std::string value = it->GetValue().ToString(); - if (tables[0].compress_type() == ::openmldb::type::CompressType::kSnappy) { - std::string uncompressed; - ::snappy::Uncompress(value.c_str(), value.length(), &uncompressed); - value = uncompressed; - } row.push_back(it->GetPK()); row.push_back(std::to_string(it->GetKey())); - row.push_back(value); + row.push_back(it->GetValue().ToString()); } else { if (!has_ts_col) { row.push_back(std::to_string(it->GetKey())); } - std::string value; - if (tables[0].compress_type() == ::openmldb::type::CompressType::kSnappy) { - ::snappy::Uncompress(it->GetValue().data(), it->GetValue().size(), &value); - } else { - value.assign(it->GetValue().data(), it->GetValue().size()); - } + std::string value(it->GetValue().data(), it->GetValue().size()); codec.DecodeRow(value, &row); ::openmldb::cmd::TransferString(&row); uint64_t row_size = row.size(); diff --git a/src/cmd/sql_cmd_test.cc b/src/cmd/sql_cmd_test.cc index 1896ac7c674..8f17d276be6 100644 --- a/src/cmd/sql_cmd_test.cc +++ b/src/cmd/sql_cmd_test.cc @@ -331,6 +331,45 @@ TEST_P(DBSDKTest, Select) { ASSERT_TRUE(status.IsOK()); } +TEST_P(DBSDKTest, SelectSnappy) { + auto cli = GetParam(); + cs = cli->cs; + sr = cli->sr; + hybridse::sdk::Status status; + if (cs->IsClusterMode()) { + sr->ExecuteSQL("SET @@execute_mode='online';", &status); + ASSERT_TRUE(status.IsOK()) << "error msg: " + status.msg; + } + std::string db = "db" + GenRand(); + sr->ExecuteSQL("create database " + db + ";", &status); + ASSERT_TRUE(status.IsOK()); + sr->ExecuteSQL("use " + db + ";", &status); + ASSERT_TRUE(status.IsOK()); + std::string create_sql = + "create table trans (c1 string, c2 bigint, c3 date," + "index(key=c1, ts=c2, abs_ttl=0, ttl_type=absolute)) options (compress_type='snappy');"; + sr->ExecuteSQL(create_sql, &status); + ASSERT_TRUE(status.IsOK()); + int insert_num = 100; + for (int i = 0; i < insert_num; i++) { + auto insert_sql = absl::StrCat("insert into trans values ('aaa", i, "', 1635247427000, \"2021-05-20\");"); + sr->ExecuteSQL(insert_sql, &status); + ASSERT_TRUE(status.IsOK()); + } + auto rs = sr->ExecuteSQL("select * from trans", &status); + ASSERT_TRUE(status.IsOK()); + ASSERT_EQ(insert_num, rs->Size()); + int count = 0; + while (rs->Next()) { + count++; + } + EXPECT_EQ(count, insert_num); + sr->ExecuteSQL("drop table trans;", &status); + ASSERT_TRUE(status.IsOK()); + sr->ExecuteSQL("drop database " + db + ";", &status); + ASSERT_TRUE(status.IsOK()); +} + TEST_F(SqlCmdTest, SelectMultiPartition) { auto sr = cluster_cli.sr; std::string db_name = "test" + GenRand(); @@ -461,11 +500,11 @@ TEST_P(DBSDKTest, Desc) { " --- ------- ----------- ------ --------- \n"; std::string expect_options = - " -------------- \n" - " storage_mode \n" - " -------------- \n" - " Memory \n" - " -------------- \n\n"; + " --------------- -------------- \n" + " compress_type storage_mode \n" + " --------------- -------------- \n" + " NoCompress Memory \n" + " --------------- -------------- \n\n"; // index name is dynamically assigned. do not check here std::vector expect = {expect_schema, "", expect_options}; diff --git a/src/codec/codec_bench_test.cc b/src/codec/codec_bench_test.cc index 3b90515d55f..aaf314782f4 100644 --- a/src/codec/codec_bench_test.cc +++ b/src/codec/codec_bench_test.cc @@ -41,8 +41,10 @@ void RunHasTs(::openmldb::storage::DataBlock* db) { datas.emplace_back(1000, std::move(::openmldb::base::Slice(db->data, db->size))); total_block_size += db->size; } - std::string pairs; - ::openmldb::codec::EncodeRows(datas, total_block_size, &pairs); + butil::IOBuf buf; + for (const auto& pair : datas) { + Encode(pair.first, pair.second.data(), pair.second.size(), &buf); + } } void RunNoneTs(::openmldb::storage::DataBlock* db) { @@ -53,8 +55,10 @@ void RunNoneTs(::openmldb::storage::DataBlock* db) { datas.push_back(::openmldb::base::Slice(db->data, db->size)); total_block_size += db->size; } - std::string pairs; - ::openmldb::codec::EncodeRows(datas, total_block_size, &pairs); + butil::IOBuf buf; + for (const auto& v : datas) { + Encode(0, v.data(), v.size(), &buf); + } } TEST_F(CodecBenchmarkTest, ProjectTest) { diff --git a/src/codec/codec_test.cc b/src/codec/codec_test.cc index 68a9c2d7552..6c6ae99f804 100644 --- a/src/codec/codec_test.cc +++ b/src/codec/codec_test.cc @@ -34,31 +34,21 @@ class CodecTest : public ::testing::Test { ~CodecTest() {} }; -TEST_F(CodecTest, EncodeRows_empty) { - boost::container::deque> data; - std::string pairs; - int32_t size = ::openmldb::codec::EncodeRows(data, 0, &pairs); - ASSERT_EQ(size, 0); -} - -TEST_F(CodecTest, EncodeRows_invalid) { - boost::container::deque> data; - int32_t size = ::openmldb::codec::EncodeRows(data, 0, NULL); - ASSERT_EQ(size, -1); -} - TEST_F(CodecTest, EncodeRows) { boost::container::deque> data; std::string test1 = "value1"; std::string test2 = "value2"; std::string empty; - uint32_t total_block_size = test1.length() + test2.length() + empty.length(); data.emplace_back(1, std::move(::openmldb::base::Slice(test1.c_str(), test1.length()))); data.emplace_back(2, std::move(::openmldb::base::Slice(test2.c_str(), test2.length()))); data.emplace_back(3, std::move(::openmldb::base::Slice(empty.c_str(), empty.length()))); + butil::IOBuf buf; + for (const auto& pair : data) { + Encode(pair.first, pair.second.data(), pair.second.size(), &buf); + } std::string pairs; - int32_t size = ::openmldb::codec::EncodeRows(data, total_block_size, &pairs); - ASSERT_EQ(size, 3 * 12 + 6 + 6); + buf.copy_to(&pairs); + ASSERT_EQ(pairs.size(), 3 * 12 + 6 + 6); std::vector> new_data; ::openmldb::codec::Decode(&pairs, new_data); ASSERT_EQ(data.size(), new_data.size()); diff --git a/src/codec/row_codec.cc b/src/codec/row_codec.cc index 64641d4f14c..f59e45b9d1e 100644 --- a/src/codec/row_codec.cc +++ b/src/codec/row_codec.cc @@ -243,6 +243,15 @@ void Encode(uint64_t time, const char* data, const size_t size, char* buffer, ui memcpy(buffer, static_cast(data), size); } +void Encode(uint64_t time, const char* data, const size_t size, butil::IOBuf* buf) { + uint32_t total_size = 8 + size; + memrev32ifbe(&total_size); + buf->append(&total_size, 4); + memrev64ifbe(&time); + buf->append(&time, 8); + buf->append(data, size); +} + void Encode(uint64_t time, const DataBlock* data, char* buffer, uint32_t offset) { return Encode(time, data->data, data->size, buffer, offset); } @@ -259,70 +268,18 @@ void Encode(const DataBlock* data, char* buffer, uint32_t offset) { return Encode(data->data, data->size, buffer, offset); } -int32_t EncodeRows(const std::vector<::openmldb::base::Slice>& rows, uint32_t total_block_size, - std::string* body) { - if (body == NULL) { - PDLOG(WARNING, "invalid output body"); - return -1; - } - - uint32_t total_size = rows.size() * 4 + total_block_size; - if (rows.size() > 0) { - body->resize(total_size); - } - uint32_t offset = 0; - char* rbuffer = reinterpret_cast(&((*body)[0])); - for (auto lit = rows.begin(); lit != rows.end(); ++lit) { - ::openmldb::codec::Encode(lit->data(), lit->size(), rbuffer, offset); - offset += (4 + lit->size()); - } - return total_size; -} - -int32_t EncodeRows(const boost::container::deque>& rows, - uint32_t total_block_size, std::string* pairs) { - if (pairs == NULL) { - PDLOG(WARNING, "invalid output pairs"); - return -1; - } - - uint32_t total_size = rows.size() * (8 + 4) + total_block_size; - if (rows.size() > 0) { - pairs->resize(total_size); - } - - char* rbuffer = reinterpret_cast(&((*pairs)[0])); - uint32_t offset = 0; - for (auto lit = rows.begin(); lit != rows.end(); ++lit) { - ::openmldb::codec::Encode(lit->first, lit->second.data(), lit->second.size(), rbuffer, offset); - offset += (4 + 8 + lit->second.size()); - } - return total_size; -} - -void EncodeFull(const std::string& pk, uint64_t time, const char* data, const size_t size, char* buffer, - uint32_t offset) { - buffer += offset; +void EncodeFull(const std::string& pk, uint64_t time, const char* data, const size_t size, butil::IOBuf* buf) { uint32_t pk_size = pk.length(); uint32_t total_size = 8 + pk_size + size; DEBUGLOG("encode total size %u pk size %u", total_size, pk_size); - memcpy(buffer, static_cast(&total_size), 4); - memrev32ifbe(buffer); - buffer += 4; - memcpy(buffer, static_cast(&pk_size), 4); - memrev32ifbe(buffer); - buffer += 4; - memcpy(buffer, static_cast(&time), 8); - memrev64ifbe(buffer); - buffer += 8; - memcpy(buffer, static_cast(pk.c_str()), pk_size); - buffer += pk_size; - memcpy(buffer, static_cast(data), size); -} - -void EncodeFull(const std::string& pk, uint64_t time, const DataBlock* data, char* buffer, - uint32_t offset) { - return EncodeFull(pk, time, data->data, data->size, buffer, offset); + memrev32ifbe(&total_size); + buf->append(&total_size, 4); + memrev32ifbe(&pk_size); + buf->append(&pk_size, 4); + memrev64ifbe(&time); + buf->append(&time, 8); + buf->append(pk); + buf->append(data, size); } void Decode(const std::string* str, std::vector>& pairs) { // NOLINT diff --git a/src/codec/row_codec.h b/src/codec/row_codec.h index 5f4f01b9690..f2ac1f69ea7 100644 --- a/src/codec/row_codec.h +++ b/src/codec/row_codec.h @@ -24,6 +24,7 @@ #include "base/status.h" #include "boost/container/deque.hpp" +#include "butil/iobuf.h" #include "codec/codec.h" #include "storage/segment.h" @@ -70,23 +71,15 @@ bool DecodeRows(const std::string& data, uint32_t count, const Schema& schema, void Encode(uint64_t time, const char* data, const size_t size, char* buffer, uint32_t offset); +void Encode(uint64_t time, const char* data, const size_t size, butil::IOBuf* buf); + void Encode(uint64_t time, const DataBlock* data, char* buffer, uint32_t offset); void Encode(const char* data, const size_t size, char* buffer, uint32_t offset); void Encode(const DataBlock* data, char* buffer, uint32_t offset); -int32_t EncodeRows(const std::vector<::openmldb::base::Slice>& rows, uint32_t total_block_size, - std::string* body); - -int32_t EncodeRows(const boost::container::deque>& rows, - uint32_t total_block_size, std::string* pairs); -// encode pk, ts and value -void EncodeFull(const std::string& pk, uint64_t time, const char* data, const size_t size, char* buffer, - uint32_t offset); - -void EncodeFull(const std::string& pk, uint64_t time, const DataBlock* data, char* buffer, - uint32_t offset); +void EncodeFull(const std::string& pk, uint64_t time, const char* data, const size_t size, butil::IOBuf* buf); void Decode(const std::string* str, std::vector>& pairs); // NOLINT diff --git a/src/sdk/node_adapter.cc b/src/sdk/node_adapter.cc index b148c8a4ca9..ef9de07a774 100644 --- a/src/sdk/node_adapter.cc +++ b/src/sdk/node_adapter.cc @@ -225,6 +225,7 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n hybridse::node::NodePointVector distribution_list; hybridse::node::StorageMode storage_mode = hybridse::node::kMemory; + hybridse::node::CompressType compress_type = hybridse::node::kNoCompress; // different default value for cluster and standalone mode int replica_num = 1; int partition_num = 1; @@ -253,6 +254,10 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n storage_mode = dynamic_cast(table_option)->GetStorageMode(); break; } + case hybridse::node::kCompressType: { + compress_type = dynamic_cast(table_option)->GetCompressType(); + break; + } case hybridse::node::kDistributions: { distribution_list = dynamic_cast(table_option)->GetDistributionList(); @@ -293,6 +298,7 @@ bool NodeAdapter::TransformToTableDef(::hybridse::node::CreatePlanNode* create_n table->set_replica_num(replica_num); table->set_partition_num(partition_num); table->set_storage_mode(static_cast(storage_mode)); + table->set_compress_type(static_cast(compress_type)); bool has_generate_index = false; std::set index_names; std::map column_names; diff --git a/src/sdk/sdk_util.cc b/src/sdk/sdk_util.cc index f6027f7c08b..1df87969040 100644 --- a/src/sdk/sdk_util.cc +++ b/src/sdk/sdk_util.cc @@ -88,6 +88,11 @@ std::string SDKUtil::GenCreateTableSQL(const ::openmldb::nameserver::TableInfo& } else { ss << ", STORAGE_MODE='Memory'"; } + if (table_info.compress_type() == type::CompressType::kSnappy) { + ss << ", COMPRESS_TYPE='Snappy'"; + } else { + ss << ", COMPRESS_TYPE='NoCompress'"; + } ss << ");"; return ss.str(); } diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index ccb7cc3cd4a..25b51991da6 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -1746,9 +1746,11 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h } ss.str(""); std::unordered_map options; - options["storage_mode"] = StorageMode_Name(table->storage_mode()); + std::string storage_mode = StorageMode_Name(table->storage_mode()); // remove the prefix 'k', i.e., change kMemory to Memory - options["storage_mode"] = options["storage_mode"].substr(1, options["storage_mode"].size() - 1); + options["storage_mode"] = storage_mode.substr(1, storage_mode.size() - 1); + std::string compress_type = CompressType_Name(table->compress_type()); + options["compress_type"] = compress_type.substr(1, compress_type.size() -1); ::openmldb::cmd::PrintTableOptions(options, ss); result.emplace_back(std::vector{ss.str()}); return ResultSetSQL::MakeResultSet({FORMAT_STRING_KEY}, result, status); diff --git a/src/sdk/sql_cluster_test.cc b/src/sdk/sql_cluster_test.cc index 8ad9dd2e128..9374841d71e 100644 --- a/src/sdk/sql_cluster_test.cc +++ b/src/sdk/sql_cluster_test.cc @@ -265,7 +265,7 @@ TEST_F(SQLClusterDDLTest, ShowCreateTable) { "`col2` int,\n" "`col3` bigInt NOT NULL,\n" "INDEX (KEY=`col1`, TTL_TYPE=ABSOLUTE, TTL=100m)\n" - ") OPTIONS (PARTITIONNUM=1, REPLICANUM=1, STORAGE_MODE='Memory');"; + ") OPTIONS (PARTITIONNUM=1, REPLICANUM=1, STORAGE_MODE='Memory', COMPRESS_TYPE='NoCompress');"; ASSERT_TRUE(router->ExecuteDDL(db, ddl, &status)) << "ddl: " << ddl; ASSERT_TRUE(router->RefreshCatalog()); auto rs = router->ExecuteSQL(db, "show create table t1;", &status); diff --git a/src/storage/disk_table.cc b/src/storage/disk_table.cc index ca3abbf90e0..8484eee1315 100644 --- a/src/storage/disk_table.cc +++ b/src/storage/disk_table.cc @@ -543,10 +543,10 @@ TableIterator* DiskTable::NewIterator(uint32_t idx, const std::string& pk, Ticke if (inner_index && inner_index->GetIndex().size() > 1) { auto ts_col = index_def->GetTsColumn(); if (ts_col) { - return new DiskTableIterator(db_, it, snapshot, pk, ts_col->GetId()); + return new DiskTableIterator(db_, it, snapshot, pk, ts_col->GetId(), GetCompressType()); } } - return new DiskTableIterator(db_, it, snapshot, pk); + return new DiskTableIterator(db_, it, snapshot, pk, GetCompressType()); } TraverseIterator* DiskTable::NewTraverseIterator(uint32_t index) { @@ -569,10 +569,10 @@ TraverseIterator* DiskTable::NewTraverseIterator(uint32_t index) { auto ts_col = index_def->GetTsColumn(); if (ts_col) { return new DiskTableTraverseIterator(db_, it, snapshot, ttl->ttl_type, expire_time, expire_cnt, - ts_col->GetId()); + ts_col->GetId(), GetCompressType()); } } - return new DiskTableTraverseIterator(db_, it, snapshot, ttl->ttl_type, expire_time, expire_cnt); + return new DiskTableTraverseIterator(db_, it, snapshot, ttl->ttl_type, expire_time, expire_cnt, GetCompressType()); } ::hybridse::vm::WindowIterator* DiskTable::NewWindowIterator(uint32_t idx) { @@ -595,10 +595,11 @@ ::hybridse::vm::WindowIterator* DiskTable::NewWindowIterator(uint32_t idx) { auto ts_col = index_def->GetTsColumn(); if (ts_col) { return new DiskTableKeyIterator(db_, it, snapshot, ttl->ttl_type, expire_time, expire_cnt, - ts_col->GetId(), cf_hs_[inner_pos + 1]); + ts_col->GetId(), cf_hs_[inner_pos + 1], GetCompressType()); } } - return new DiskTableKeyIterator(db_, it, snapshot, ttl->ttl_type, expire_time, expire_cnt, cf_hs_[inner_pos + 1]); + return new DiskTableKeyIterator(db_, it, snapshot, ttl->ttl_type, expire_time, expire_cnt, + cf_hs_[inner_pos + 1], GetCompressType()); } bool DiskTable::DeleteIndex(const std::string& idx_name) { diff --git a/src/storage/disk_table_iterator.cc b/src/storage/disk_table_iterator.cc index 7b78bec4f3e..d934715e880 100644 --- a/src/storage/disk_table_iterator.cc +++ b/src/storage/disk_table_iterator.cc @@ -15,7 +15,7 @@ */ #include "storage/disk_table_iterator.h" - +#include #include #include "gflags/gflags.h" #include "storage/key_transform.h" @@ -26,12 +26,12 @@ namespace openmldb { namespace storage { DiskTableIterator::DiskTableIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, - const std::string& pk) - : db_(db), it_(it), snapshot_(snapshot), pk_(pk), ts_(0) {} + const std::string& pk, type::CompressType compress_type) + : db_(db), it_(it), snapshot_(snapshot), pk_(pk), ts_(0), compress_type_(compress_type) {} DiskTableIterator::DiskTableIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, - const std::string& pk, uint32_t ts_idx) - : db_(db), it_(it), snapshot_(snapshot), pk_(pk), ts_(0), ts_idx_(ts_idx) { + const std::string& pk, uint32_t ts_idx, type::CompressType compress_type) + : db_(db), it_(it), snapshot_(snapshot), pk_(pk), ts_(0), ts_idx_(ts_idx), compress_type_(compress_type) { has_ts_idx_ = true; } @@ -55,7 +55,13 @@ void DiskTableIterator::Next() { return it_->Next(); } openmldb::base::Slice DiskTableIterator::GetValue() const { rocksdb::Slice value = it_->value(); - return openmldb::base::Slice(value.data(), value.size()); + if (compress_type_ == type::CompressType::kSnappy) { + tmp_buf_.clear(); + snappy::Uncompress(value.data(), value.size(), &tmp_buf_); + return openmldb::base::Slice(tmp_buf_); + } else { + return openmldb::base::Slice(value.data(), value.size()); + } } std::string DiskTableIterator::GetPK() const { return pk_; } @@ -85,7 +91,8 @@ void DiskTableIterator::Seek(const uint64_t ts) { DiskTableTraverseIterator::DiskTableTraverseIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, const uint64_t& expire_time, - const uint64_t& expire_cnt) + const uint64_t& expire_cnt, + type::CompressType compress_type) : db_(db), it_(it), snapshot_(snapshot), @@ -93,12 +100,14 @@ DiskTableTraverseIterator::DiskTableTraverseIterator(rocksdb::DB* db, rocksdb::I expire_value_(expire_time, expire_cnt, ttl_type), has_ts_idx_(false), ts_idx_(0), - traverse_cnt_(0) {} + traverse_cnt_(0), + compress_type_(compress_type) {} DiskTableTraverseIterator::DiskTableTraverseIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, const uint64_t& expire_time, - const uint64_t& expire_cnt, int32_t ts_idx) + const uint64_t& expire_cnt, int32_t ts_idx, + type::CompressType compress_type) : db_(db), it_(it), snapshot_(snapshot), @@ -106,7 +115,8 @@ DiskTableTraverseIterator::DiskTableTraverseIterator(rocksdb::DB* db, rocksdb::I expire_value_(expire_time, expire_cnt, ttl_type), has_ts_idx_(true), ts_idx_(ts_idx), - traverse_cnt_(0) {} + traverse_cnt_(0), + compress_type_(compress_type) {} DiskTableTraverseIterator::~DiskTableTraverseIterator() { delete it_; @@ -154,6 +164,11 @@ void DiskTableTraverseIterator::Next() { openmldb::base::Slice DiskTableTraverseIterator::GetValue() const { rocksdb::Slice value = it_->value(); + if (compress_type_ == type::CompressType::kSnappy) { + tmp_buf_.clear(); + snappy::Uncompress(value.data(), value.size(), &tmp_buf_); + return openmldb::base::Slice(tmp_buf_); + } return openmldb::base::Slice(value.data(), value.size()); } @@ -297,7 +312,8 @@ void DiskTableTraverseIterator::NextPK() { DiskTableKeyIterator::DiskTableKeyIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, const uint64_t& expire_time, const uint64_t& expire_cnt, - rocksdb::ColumnFamilyHandle* column_handle) + rocksdb::ColumnFamilyHandle* column_handle, + type::CompressType compress_type) : db_(db), it_(it), snapshot_(snapshot), @@ -306,12 +322,14 @@ DiskTableKeyIterator::DiskTableKeyIterator(rocksdb::DB* db, rocksdb::Iterator* i expire_cnt_(expire_cnt), has_ts_idx_(false), ts_idx_(0), - column_handle_(column_handle) {} + column_handle_(column_handle), + compress_type_(compress_type) {} DiskTableKeyIterator::DiskTableKeyIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, const uint64_t& expire_time, const uint64_t& expire_cnt, int32_t ts_idx, - rocksdb::ColumnFamilyHandle* column_handle) + rocksdb::ColumnFamilyHandle* column_handle, + type::CompressType compress_type) : db_(db), it_(it), snapshot_(snapshot), @@ -320,7 +338,8 @@ DiskTableKeyIterator::DiskTableKeyIterator(rocksdb::DB* db, rocksdb::Iterator* i expire_cnt_(expire_cnt), has_ts_idx_(true), ts_idx_(ts_idx), - column_handle_(column_handle) {} + column_handle_(column_handle), + compress_type_(compress_type) {} DiskTableKeyIterator::~DiskTableKeyIterator() { delete it_; @@ -398,7 +417,7 @@ std::unique_ptr<::hybridse::vm::RowIterator> DiskTableKeyIterator::GetValue() { ro.pin_data = true; rocksdb::Iterator* it = db_->NewIterator(ro, column_handle_); return std::make_unique(db_, it, snapshot, ttl_type_, expire_time_, - expire_cnt_, pk_, ts_, has_ts_idx_, ts_idx_); + expire_cnt_, pk_, ts_, has_ts_idx_, ts_idx_, compress_type_); } ::hybridse::vm::RowIterator* DiskTableKeyIterator::GetRawValue() { @@ -408,14 +427,14 @@ ::hybridse::vm::RowIterator* DiskTableKeyIterator::GetRawValue() { // ro.prefix_same_as_start = true; ro.pin_data = true; rocksdb::Iterator* it = db_->NewIterator(ro, column_handle_); - return new DiskTableRowIterator(db_, it, snapshot, ttl_type_, expire_time_, expire_cnt_, pk_, ts_, has_ts_idx_, - ts_idx_); + return new DiskTableRowIterator(db_, it, snapshot, ttl_type_, expire_time_, + expire_cnt_, pk_, ts_, has_ts_idx_, ts_idx_, compress_type_); } DiskTableRowIterator::DiskTableRowIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, uint64_t expire_time, uint64_t expire_cnt, std::string pk, uint64_t ts, bool has_ts_idx, - uint32_t ts_idx) + uint32_t ts_idx, type::CompressType compress_type) : db_(db), it_(it), snapshot_(snapshot), @@ -426,7 +445,8 @@ DiskTableRowIterator::DiskTableRowIterator(rocksdb::DB* db, rocksdb::Iterator* i ts_(ts), has_ts_idx_(has_ts_idx), ts_idx_(ts_idx), - row_() {} + row_(), + compress_type_(compress_type) {} DiskTableRowIterator::~DiskTableRowIterator() { delete it_; @@ -470,9 +490,17 @@ const ::hybridse::codec::Row& DiskTableRowIterator::GetValue() { } valid_value_ = true; size_t size = it_->value().size(); - int8_t* copyed_row_data = reinterpret_cast(malloc(size)); - memcpy(copyed_row_data, it_->value().data(), size); - row_.Reset(::hybridse::base::RefCountedSlice::CreateManaged(copyed_row_data, size)); + if (compress_type_ == type::CompressType::kSnappy) { + tmp_buf_.clear(); + snappy::Uncompress(it_->value().data(), size, &tmp_buf_); + int8_t* copyed_row_data = reinterpret_cast(malloc(tmp_buf_.size())); + memcpy(copyed_row_data, tmp_buf_.data(), tmp_buf_.size()); + row_.Reset(::hybridse::base::RefCountedSlice::CreateManaged(copyed_row_data, tmp_buf_.size())); + } else { + int8_t* copyed_row_data = reinterpret_cast(malloc(size)); + memcpy(copyed_row_data, it_->value().data(), size); + row_.Reset(::hybridse::base::RefCountedSlice::CreateManaged(copyed_row_data, size)); + } return row_; } diff --git a/src/storage/disk_table_iterator.h b/src/storage/disk_table_iterator.h index 88f7225c5a9..df9b98fca9c 100644 --- a/src/storage/disk_table_iterator.h +++ b/src/storage/disk_table_iterator.h @@ -29,9 +29,10 @@ namespace storage { class DiskTableIterator : public TableIterator { public: - DiskTableIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, const std::string& pk); - DiskTableIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, const std::string& pk, - uint32_t ts_idx); + DiskTableIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, + const std::string& pk, type::CompressType compress_type); + DiskTableIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, + const std::string& pk, uint32_t ts_idx, type::CompressType compress_type); virtual ~DiskTableIterator(); bool Valid() override; void Next() override; @@ -49,16 +50,18 @@ class DiskTableIterator : public TableIterator { uint64_t ts_; uint32_t ts_idx_; bool has_ts_idx_ = false; + type::CompressType compress_type_; + mutable std::string tmp_buf_; }; class DiskTableTraverseIterator : public TraverseIterator { public: DiskTableTraverseIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, const uint64_t& expire_time, - const uint64_t& expire_cnt); + const uint64_t& expire_cnt, type::CompressType compress_type); DiskTableTraverseIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, const uint64_t& expire_time, - const uint64_t& expire_cnt, int32_t ts_idx); + const uint64_t& expire_cnt, int32_t ts_idx, type::CompressType compress_type); virtual ~DiskTableTraverseIterator(); bool Valid() override; void Next() override; @@ -84,13 +87,16 @@ class DiskTableTraverseIterator : public TraverseIterator { bool has_ts_idx_; uint32_t ts_idx_; uint64_t traverse_cnt_; + type::CompressType compress_type_; + mutable std::string tmp_buf_; }; class DiskTableRowIterator : public ::hybridse::vm::RowIterator { public: DiskTableRowIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, uint64_t expire_time, uint64_t expire_cnt, - std::string pk, uint64_t ts, bool has_ts_idx, uint32_t ts_idx); + std::string pk, uint64_t ts, bool has_ts_idx, uint32_t ts_idx, + type::CompressType compress_type); ~DiskTableRowIterator(); @@ -129,17 +135,21 @@ class DiskTableRowIterator : public ::hybridse::vm::RowIterator { ::hybridse::codec::Row row_; bool pk_valid_; bool valid_value_ = false; + type::CompressType compress_type_; + std::string tmp_buf_; }; class DiskTableKeyIterator : public ::hybridse::vm::WindowIterator { public: DiskTableKeyIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, const uint64_t& expire_time, const uint64_t& expire_cnt, - int32_t ts_idx, rocksdb::ColumnFamilyHandle* column_handle); + int32_t ts_idx, rocksdb::ColumnFamilyHandle* column_handle, + type::CompressType compress_type); DiskTableKeyIterator(rocksdb::DB* db, rocksdb::Iterator* it, const rocksdb::Snapshot* snapshot, ::openmldb::storage::TTLType ttl_type, const uint64_t& expire_time, const uint64_t& expire_cnt, - rocksdb::ColumnFamilyHandle* column_handle); + rocksdb::ColumnFamilyHandle* column_handle, + type::CompressType compress_type); ~DiskTableKeyIterator() override; @@ -171,6 +181,7 @@ class DiskTableKeyIterator : public ::hybridse::vm::WindowIterator { uint64_t ts_; uint32_t ts_idx_; rocksdb::ColumnFamilyHandle* column_handle_; + type::CompressType compress_type_; }; } // namespace storage diff --git a/src/storage/mem_table.cc b/src/storage/mem_table.cc index 4d085120c06..a50e3c6dc82 100644 --- a/src/storage/mem_table.cc +++ b/src/storage/mem_table.cc @@ -423,6 +423,11 @@ bool MemTable::IsExpire(const LogEntry& entry) { } } const int8_t* data = reinterpret_cast(entry.value().data()); + std::string uncompress_data; + if (GetCompressType() == openmldb::type::kSnappy) { + snappy::Uncompress(entry.value().data(), entry.value().size(), &uncompress_data); + data = reinterpret_cast(uncompress_data.data()); + } uint8_t version = codec::RowView::GetSchemaVersion(data); auto decoder = GetVersionDecoder(version); if (decoder == nullptr) { @@ -513,9 +518,9 @@ TableIterator* MemTable::NewIterator(uint32_t index, const std::string& pk, Tick Segment* segment = segments_[real_idx][seg_idx]; auto ts_col = index_def->GetTsColumn(); if (ts_col) { - return segment->NewIterator(spk, ts_col->GetId(), ticket); + return segment->NewIterator(spk, ts_col->GetId(), ticket, GetCompressType()); } - return segment->NewIterator(spk, ticket); + return segment->NewIterator(spk, ticket, GetCompressType()); } uint64_t MemTable::GetRecordIdxByteSize() { @@ -739,7 +744,8 @@ ::hybridse::vm::WindowIterator* MemTable::NewWindowIterator(uint32_t index) { if (ts_col) { ts_idx = ts_col->GetId(); } - return new MemTableKeyIterator(segments_[real_idx], seg_cnt_, ttl->ttl_type, expire_time, expire_cnt, ts_idx); + return new MemTableKeyIterator(segments_[real_idx], seg_cnt_, ttl->ttl_type, + expire_time, expire_cnt, ts_idx, GetCompressType()); } TraverseIterator* MemTable::NewTraverseIterator(uint32_t index) { @@ -758,10 +764,11 @@ TraverseIterator* MemTable::NewTraverseIterator(uint32_t index) { uint32_t real_idx = index_def->GetInnerPos(); auto ts_col = index_def->GetTsColumn(); if (ts_col) { - return new MemTableTraverseIterator(segments_[real_idx], seg_cnt_, ttl->ttl_type, expire_time, expire_cnt, - ts_col->GetId()); + return new MemTableTraverseIterator(segments_[real_idx], seg_cnt_, ttl->ttl_type, + expire_time, expire_cnt, ts_col->GetId(), GetCompressType()); } - return new MemTableTraverseIterator(segments_[real_idx], seg_cnt_, ttl->ttl_type, expire_time, expire_cnt, 0); + return new MemTableTraverseIterator(segments_[real_idx], seg_cnt_, ttl->ttl_type, + expire_time, expire_cnt, 0, GetCompressType()); } bool MemTable::GetBulkLoadInfo(::openmldb::api::BulkLoadInfoResponse* response) { diff --git a/src/storage/mem_table_iterator.cc b/src/storage/mem_table_iterator.cc index 8b0f074427a..22cd7964640 100644 --- a/src/storage/mem_table_iterator.cc +++ b/src/storage/mem_table_iterator.cc @@ -15,7 +15,7 @@ */ #include "storage/mem_table_iterator.h" - +#include #include #include "base/hash.h" #include "gflags/gflags.h" @@ -48,7 +48,13 @@ const uint64_t& MemTableWindowIterator::GetKey() const { } const ::hybridse::codec::Row& MemTableWindowIterator::GetValue() { - row_.Reset(reinterpret_cast(it_->GetValue()->data), it_->GetValue()->size); + if (compress_type_ == type::CompressType::kSnappy) { + tmp_buf_.clear(); + snappy::Uncompress(it_->GetValue()->data, it_->GetValue()->size, &tmp_buf_); + row_.Reset(reinterpret_cast(tmp_buf_.data()), tmp_buf_.size()); + } else { + row_.Reset(reinterpret_cast(it_->GetValue()->data), it_->GetValue()->size); + } return row_; } @@ -69,7 +75,8 @@ void MemTableWindowIterator::SeekToFirst() { } MemTableKeyIterator::MemTableKeyIterator(Segment** segments, uint32_t seg_cnt, ::openmldb::storage::TTLType ttl_type, - uint64_t expire_time, uint64_t expire_cnt, uint32_t ts_index) + uint64_t expire_time, uint64_t expire_cnt, uint32_t ts_index, + type::CompressType compress_type) : segments_(segments), seg_cnt_(seg_cnt), seg_idx_(0), @@ -79,7 +86,8 @@ MemTableKeyIterator::MemTableKeyIterator(Segment** segments, uint32_t seg_cnt, : expire_time_(expire_time), expire_cnt_(expire_cnt), ticket_(), - ts_idx_(0) { + ts_idx_(0), + compress_type_(compress_type) { uint32_t idx = 0; if (segments_[0]->GetTsIdx(ts_index, idx) == 0) { ts_idx_ = idx; @@ -142,7 +150,7 @@ ::hybridse::vm::RowIterator* MemTableKeyIterator::GetRawValue() { ticket_.Push((KeyEntry*)pk_it_->GetValue()); // NOLINT } it->SeekToFirst(); - return new MemTableWindowIterator(it, ttl_type_, expire_time_, expire_cnt_); + return new MemTableWindowIterator(it, ttl_type_, expire_time_, expire_cnt_, compress_type_); } std::unique_ptr<::hybridse::vm::RowIterator> MemTableKeyIterator::GetValue() { @@ -177,8 +185,9 @@ void MemTableKeyIterator::NextPK() { } MemTableTraverseIterator::MemTableTraverseIterator(Segment** segments, uint32_t seg_cnt, - ::openmldb::storage::TTLType ttl_type, uint64_t expire_time, - uint64_t expire_cnt, uint32_t ts_index) + ::openmldb::storage::TTLType ttl_type, uint64_t expire_time, + uint64_t expire_cnt, uint32_t ts_index, + type::CompressType compress_type) : segments_(segments), seg_cnt_(seg_cnt), seg_idx_(0), @@ -188,7 +197,8 @@ MemTableTraverseIterator::MemTableTraverseIterator(Segment** segments, uint32_t ts_idx_(0), expire_value_(expire_time, expire_cnt, ttl_type), ticket_(), - traverse_cnt_(0) { + traverse_cnt_(0), + compress_type_(compress_type) { uint32_t idx = 0; if (segments_[0]->GetTsIdx(ts_index, idx) == 0) { ts_idx_ = idx; @@ -320,7 +330,13 @@ void MemTableTraverseIterator::Seek(const std::string& key, uint64_t ts) { } openmldb::base::Slice MemTableTraverseIterator::GetValue() const { - return openmldb::base::Slice(it_->GetValue()->data, it_->GetValue()->size); + if (compress_type_ == type::CompressType::kSnappy) { + tmp_buf_.clear(); + snappy::Uncompress(it_->GetValue()->data, it_->GetValue()->size, &tmp_buf_); + return openmldb::base::Slice(tmp_buf_); + } else { + return openmldb::base::Slice(it_->GetValue()->data, it_->GetValue()->size); + } } uint64_t MemTableTraverseIterator::GetKey() const { diff --git a/src/storage/mem_table_iterator.h b/src/storage/mem_table_iterator.h index 967345fc2a9..5e5ba461181 100644 --- a/src/storage/mem_table_iterator.h +++ b/src/storage/mem_table_iterator.h @@ -27,8 +27,9 @@ namespace storage { class MemTableWindowIterator : public ::hybridse::vm::RowIterator { public: MemTableWindowIterator(TimeEntries::Iterator* it, ::openmldb::storage::TTLType ttl_type, uint64_t expire_time, - uint64_t expire_cnt) - : it_(it), record_idx_(1), expire_value_(expire_time, expire_cnt, ttl_type), row_() {} + uint64_t expire_cnt, type::CompressType compress_type) + : it_(it), record_idx_(1), expire_value_(expire_time, expire_cnt, ttl_type), + row_(), compress_type_(compress_type) {} ~MemTableWindowIterator(); @@ -51,12 +52,15 @@ class MemTableWindowIterator : public ::hybridse::vm::RowIterator { uint32_t record_idx_; TTLSt expire_value_; ::hybridse::codec::Row row_; + type::CompressType compress_type_; + std::string tmp_buf_; }; class MemTableKeyIterator : public ::hybridse::vm::WindowIterator { public: MemTableKeyIterator(Segment** segments, uint32_t seg_cnt, ::openmldb::storage::TTLType ttl_type, - uint64_t expire_time, uint64_t expire_cnt, uint32_t ts_index); + uint64_t expire_time, uint64_t expire_cnt, uint32_t ts_index, + type::CompressType compress_type); ~MemTableKeyIterator() override; @@ -87,12 +91,14 @@ class MemTableKeyIterator : public ::hybridse::vm::WindowIterator { uint64_t expire_cnt_; Ticket ticket_; uint32_t ts_idx_; + type::CompressType compress_type_; }; class MemTableTraverseIterator : public TraverseIterator { public: MemTableTraverseIterator(Segment** segments, uint32_t seg_cnt, ::openmldb::storage::TTLType ttl_type, - uint64_t expire_time, uint64_t expire_cnt, uint32_t ts_index); + uint64_t expire_time, uint64_t expire_cnt, uint32_t ts_index, + type::CompressType compress_type); ~MemTableTraverseIterator() override; inline bool Valid() override; void Next() override; @@ -115,6 +121,8 @@ class MemTableTraverseIterator : public TraverseIterator { TTLSt expire_value_; Ticket ticket_; uint64_t traverse_cnt_; + type::CompressType compress_type_; + mutable std::string tmp_buf_; }; } // namespace storage diff --git a/src/storage/segment.cc b/src/storage/segment.cc index aec7f083b36..d79b6e85681 100644 --- a/src/storage/segment.cc +++ b/src/storage/segment.cc @@ -15,7 +15,7 @@ */ #include "storage/segment.h" - +#include #include #include "base/glog_wrapper.h" @@ -742,36 +742,38 @@ int Segment::GetCount(const Slice& key, uint32_t idx, uint64_t& count) { return 0; } -MemTableIterator* Segment::NewIterator(const Slice& key, Ticket& ticket) { +MemTableIterator* Segment::NewIterator(const Slice& key, Ticket& ticket, type::CompressType compress_type) { if (entries_ == nullptr || ts_cnt_ > 1) { - return new MemTableIterator(nullptr); + return new MemTableIterator(nullptr, compress_type); } void* entry = nullptr; if (entries_->Get(key, entry) < 0 || entry == nullptr) { - return new MemTableIterator(nullptr); + return new MemTableIterator(nullptr, compress_type); } ticket.Push(reinterpret_cast(entry)); - return new MemTableIterator(reinterpret_cast(entry)->entries.NewIterator()); + return new MemTableIterator(reinterpret_cast(entry)->entries.NewIterator(), compress_type); } -MemTableIterator* Segment::NewIterator(const Slice& key, uint32_t idx, Ticket& ticket) { +MemTableIterator* Segment::NewIterator(const Slice& key, uint32_t idx, + Ticket& ticket, type::CompressType compress_type) { auto pos = ts_idx_map_.find(idx); if (pos == ts_idx_map_.end()) { - return new MemTableIterator(nullptr); + return new MemTableIterator(nullptr, compress_type); } if (ts_cnt_ == 1) { - return NewIterator(key, ticket); + return NewIterator(key, ticket, compress_type); } void* entry_arr = nullptr; if (entries_->Get(key, entry_arr) < 0 || entry_arr == nullptr) { - return new MemTableIterator(nullptr); + return new MemTableIterator(nullptr, compress_type); } auto entry = reinterpret_cast(entry_arr)[pos->second]; ticket.Push(entry); - return new MemTableIterator(entry->entries.NewIterator()); + return new MemTableIterator(entry->entries.NewIterator(), compress_type); } -MemTableIterator::MemTableIterator(TimeEntries::Iterator* it) : it_(it) {} +MemTableIterator::MemTableIterator(TimeEntries::Iterator* it, type::CompressType compress_type) + : it_(it), compress_type_(compress_type) {} MemTableIterator::~MemTableIterator() { if (it_ != nullptr) { @@ -797,6 +799,11 @@ void MemTableIterator::Next() { } ::openmldb::base::Slice MemTableIterator::GetValue() const { + if (compress_type_ == type::CompressType::kSnappy) { + tmp_buf_.clear(); + snappy::Uncompress(it_->GetValue()->data, it_->GetValue()->size, &tmp_buf_); + return openmldb::base::Slice(tmp_buf_); + } return ::openmldb::base::Slice(it_->GetValue()->data, it_->GetValue()->size); } diff --git a/src/storage/segment.h b/src/storage/segment.h index 8e320400e39..fe58dd893a0 100644 --- a/src/storage/segment.h +++ b/src/storage/segment.h @@ -22,6 +22,7 @@ #include #include // NOLINT #include +#include #include #include "base/skiplist.h" @@ -40,7 +41,7 @@ using ::openmldb::base::Slice; class MemTableIterator : public TableIterator { public: - explicit MemTableIterator(TimeEntries::Iterator* it); + explicit MemTableIterator(TimeEntries::Iterator* it, type::CompressType compress_type); virtual ~MemTableIterator(); void Seek(const uint64_t time) override; bool Valid() override; @@ -52,6 +53,8 @@ class MemTableIterator : public TableIterator { private: TimeEntries::Iterator* it_; + type::CompressType compress_type_; + mutable std::string tmp_buf_; }; struct SliceComparator { @@ -93,9 +96,9 @@ class Segment { void Gc4TTLOrHead(const uint64_t time, const uint64_t keep_cnt, StatisticsInfo* statistics_info); void GcAllType(const std::map& ttl_st_map, StatisticsInfo* statistics_info); - MemTableIterator* NewIterator(const Slice& key, Ticket& ticket); // NOLINT + MemTableIterator* NewIterator(const Slice& key, Ticket& ticket, type::CompressType compress_type); // NOLINT MemTableIterator* NewIterator(const Slice& key, uint32_t idx, - Ticket& ticket); // NOLINT + Ticket& ticket, type::CompressType compress_type); // NOLINT uint64_t GetIdxCnt() const { return idx_cnt_vec_[0]->load(std::memory_order_relaxed); diff --git a/src/storage/segment_test.cc b/src/storage/segment_test.cc index 8b4728a9150..c51c0984473 100644 --- a/src/storage/segment_test.cc +++ b/src/storage/segment_test.cc @@ -61,7 +61,7 @@ TEST_F(SegmentTest, PutAndScan) { segment.Put(pk, 9529, value.c_str(), value.size()); ASSERT_EQ(1, (int64_t)segment.GetPkCnt()); Ticket ticket; - std::unique_ptr it(segment.NewIterator("test1", ticket)); + std::unique_ptr it(segment.NewIterator("test1", ticket, type::CompressType::kNoCompress)); it->Seek(9530); ASSERT_TRUE(it->Valid()); ASSERT_EQ(9529, (int64_t)it->GetKey()); @@ -103,7 +103,7 @@ TEST_F(SegmentTest, Delete) { segment.Put(pk, 9529, value.c_str(), value.size()); ASSERT_EQ(1, (int64_t)segment.GetPkCnt()); Ticket ticket; - std::unique_ptr it(segment.NewIterator("test1", ticket)); + std::unique_ptr it(segment.NewIterator("test1", ticket, type::CompressType::kNoCompress)); int size = 0; it->SeekToFirst(); while (it->Valid()) { @@ -112,7 +112,7 @@ TEST_F(SegmentTest, Delete) { } ASSERT_EQ(4, size); ASSERT_TRUE(segment.Delete(std::nullopt, pk)); - it.reset(segment.NewIterator("test1", ticket)); + it.reset(segment.NewIterator("test1", ticket, type::CompressType::kNoCompress)); ASSERT_FALSE(it->Valid()); segment.IncrGcVersion(); segment.IncrGcVersion(); @@ -178,7 +178,7 @@ TEST_F(SegmentTest, Iterator) { segment.Put(pk, 9769, "test2", 5); ASSERT_EQ(1, (int64_t)segment.GetPkCnt()); Ticket ticket; - std::unique_ptr it(segment.NewIterator("test1", ticket)); + std::unique_ptr it(segment.NewIterator("test1", ticket, type::CompressType::kNoCompress)); it->SeekToFirst(); int size = 0; while (it->Valid()) { @@ -208,7 +208,7 @@ TEST_F(SegmentTest, TestGc4Head) { segment.Gc4Head(1, &gc_info); CheckStatisticsInfo(CreateStatisticsInfo(1, 0, GetRecordSize(5)), gc_info); Ticket ticket; - std::unique_ptr it(segment.NewIterator(pk, ticket)); + std::unique_ptr it(segment.NewIterator(pk, ticket, type::CompressType::kNoCompress)); it->Seek(9769); ASSERT_TRUE(it->Valid()); ASSERT_EQ(9769, (int64_t)it->GetKey()); @@ -401,7 +401,7 @@ TEST_F(SegmentTest, TestDeleteRange) { ASSERT_EQ(100, GetCount(&segment, 0)); std::string pk = "key2"; Ticket ticket; - std::unique_ptr it(segment.NewIterator(pk, ticket)); + std::unique_ptr it(segment.NewIterator(pk, ticket, type::CompressType::kNoCompress)); it->Seek(1005); ASSERT_TRUE(it->Valid() && it->GetKey() == 1005); ASSERT_TRUE(segment.Delete(std::nullopt, pk, 1005, 1004)); diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index a919c8ae52a..bc319c105d7 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -458,9 +458,6 @@ int32_t TabletImpl::GetIndex(const ::openmldb::api::GetRequest* request, const : bool enable_project = false; openmldb::codec::RowProject row_project(vers_schema, request->projection()); if (request->projection().size() > 0) { - if (meta.compress_type() == ::openmldb::type::kSnappy) { - return -1; - } bool ok = row_project.Init(); if (!ok) { PDLOG(WARNING, "invalid project list"); @@ -719,6 +716,22 @@ void TabletImpl::Put(RpcController* controller, const ::openmldb::api::PutReques response->set_msg("exceed max memory"); return; } + ::openmldb::api::LogEntry entry; + entry.set_pk(request->pk()); + entry.set_ts(request->time()); + if (table->GetCompressType() == openmldb::type::CompressType::kSnappy) { + const auto& raw_val = request->value(); + std::string* val = entry.mutable_value(); + ::snappy::Compress(raw_val.c_str(), raw_val.length(), val); + } else { + entry.set_value(request->value()); + } + if (request->dimensions_size() > 0) { + entry.mutable_dimensions()->CopyFrom(request->dimensions()); + } + if (request->ts_dimensions_size() > 0) { + entry.mutable_ts_dimensions()->CopyFrom(request->ts_dimensions()); + } bool ok = false; if (request->dimensions_size() > 0) { int32_t ret_code = CheckDimessionPut(request, table->GetIdxCnt()); @@ -728,7 +741,7 @@ void TabletImpl::Put(RpcController* controller, const ::openmldb::api::PutReques return; } DLOG(INFO) << "put data to tid " << tid << " pid " << pid << " with key " << request->dimensions(0).key(); - ok = table->Put(request->time(), request->value(), request->dimensions()); + ok = table->Put(entry.ts(), entry.value(), entry.dimensions()); } if (!ok) { response->set_code(::openmldb::base::ReturnCode::kPutFailed); @@ -738,23 +751,13 @@ void TabletImpl::Put(RpcController* controller, const ::openmldb::api::PutReques response->set_code(::openmldb::base::ReturnCode::kOk); std::shared_ptr replicator; - ::openmldb::api::LogEntry entry; do { replicator = GetReplicator(request->tid(), request->pid()); if (!replicator) { PDLOG(WARNING, "fail to find table tid %u pid %u leader's log replicator", tid, pid); break; } - entry.set_pk(request->pk()); - entry.set_ts(request->time()); - entry.set_value(request->value()); entry.set_term(replicator->GetLeaderTerm()); - if (request->dimensions_size() > 0) { - entry.mutable_dimensions()->CopyFrom(request->dimensions()); - } - if (request->ts_dimensions_size() > 0) { - entry.mutable_ts_dimensions()->CopyFrom(request->ts_dimensions()); - } // Aggregator update assumes that binlog_offset is strictly increasing // so the update should be protected within the replicator lock @@ -880,7 +883,7 @@ int TabletImpl::CheckTableMeta(const openmldb::api::TableMeta* table_meta, std:: } int32_t TabletImpl::ScanIndex(const ::openmldb::api::ScanRequest* request, const ::openmldb::api::TableMeta& meta, - const std::map>& vers_schema, + const std::map>& vers_schema, bool use_attachment, CombineIterator* combine_it, butil::IOBuf* io_buf, uint32_t* count, bool* is_finish) { uint32_t limit = request->limit(); if (combine_it == nullptr || io_buf == nullptr || count == nullptr || is_finish == nullptr) { @@ -904,12 +907,7 @@ int32_t TabletImpl::ScanIndex(const ::openmldb::api::ScanRequest* request, const bool enable_project = false; ::openmldb::codec::RowProject row_project(vers_schema, request->projection()); if (request->projection().size() > 0) { - if (meta.compress_type() == ::openmldb::type::kSnappy) { - LOG(WARNING) << "project on compress row data do not eing supported"; - return -1; - } - bool ok = row_project.Init(); - if (!ok) { + if (!row_project.Init()) { PDLOG(WARNING, "invalid project list"); return -1; } @@ -950,11 +948,19 @@ int32_t TabletImpl::ScanIndex(const ::openmldb::api::ScanRequest* request, const PDLOG(WARNING, "fail to make a projection"); return -4; } - io_buf->append(reinterpret_cast(ptr), size); + if (use_attachment) { + io_buf->append(reinterpret_cast(ptr), size); + } else { + ::openmldb::codec::Encode(ts, reinterpret_cast(ptr), size, io_buf); + } total_block_size += size; } else { openmldb::base::Slice data = combine_it->GetValue(); - io_buf->append(reinterpret_cast(data.data()), data.size()); + if (use_attachment) { + io_buf->append(reinterpret_cast(data.data()), data.size()); + } else { + ::openmldb::codec::Encode(ts, data.data(), data.size(), io_buf); + } total_block_size += data.size(); } record_count++; @@ -967,98 +973,6 @@ int32_t TabletImpl::ScanIndex(const ::openmldb::api::ScanRequest* request, const *count = record_count; return 0; } -int32_t TabletImpl::ScanIndex(const ::openmldb::api::ScanRequest* request, const ::openmldb::api::TableMeta& meta, - const std::map>& vers_schema, - CombineIterator* combine_it, std::string* pairs, uint32_t* count, bool* is_finish) { - uint32_t limit = request->limit(); - if (combine_it == nullptr || pairs == nullptr || count == nullptr || is_finish == nullptr) { - PDLOG(WARNING, "invalid args"); - return -1; - } - uint64_t st = request->st(); - uint64_t et = request->et(); - uint64_t expire_time = combine_it->GetExpireTime(); - ::openmldb::storage::TTLType ttl_type = combine_it->GetTTLType(); - if (ttl_type == ::openmldb::storage::TTLType::kAbsoluteTime || - ttl_type == ::openmldb::storage::TTLType::kAbsOrLat) { - et = std::max(et, expire_time); - } - if (st > 0 && st < et) { - PDLOG(WARNING, "invalid args for st %lu less than et %lu or expire time %lu", st, et, expire_time); - return -1; - } - - bool enable_project = false; - ::openmldb::codec::RowProject row_project(vers_schema, request->projection()); - if (!request->projection().empty()) { - if (meta.compress_type() == ::openmldb::type::kSnappy) { - LOG(WARNING) << "project on compress row data, not supported"; - return -1; - } - bool ok = row_project.Init(); - if (!ok) { - PDLOG(WARNING, "invalid project list"); - return -1; - } - enable_project = true; - } - bool remove_duplicated_record = request->enable_remove_duplicated_record(); - uint64_t last_time = 0; - boost::container::deque> tmp; - uint32_t total_block_size = 0; - combine_it->SeekToFirst(); - uint32_t skip_record_num = request->skip_record_num(); - while (combine_it->Valid()) { - if (limit > 0 && tmp.size() >= limit) { - *is_finish = false; - break; - } - if (remove_duplicated_record && !tmp.empty() && last_time == combine_it->GetTs()) { - combine_it->Next(); - continue; - } - if (combine_it->GetTs() == st && skip_record_num > 0) { - skip_record_num--; - combine_it->Next(); - continue; - } - uint64_t ts = combine_it->GetTs(); - if (ts <= et) { - break; - } - last_time = ts; - if (enable_project) { - int8_t* ptr = nullptr; - uint32_t size = 0; - openmldb::base::Slice data = combine_it->GetValue(); - const auto* row_ptr = reinterpret_cast(data.data()); - bool ok = row_project.Project(row_ptr, data.size(), &ptr, &size); - if (!ok) { - PDLOG(WARNING, "fail to make a projection"); - return -4; - } - tmp.emplace_back(ts, Slice(reinterpret_cast(ptr), size, true)); - total_block_size += size; - } else { - openmldb::base::Slice data = combine_it->GetValue(); - total_block_size += data.size(); - tmp.emplace_back(ts, data); - } - if (total_block_size > FLAGS_scan_max_bytes_size) { - LOG(WARNING) << "reach the max byte size " << FLAGS_scan_max_bytes_size << " cur is " << total_block_size; - *is_finish = false; - break; - } - combine_it->Next(); - } - int32_t ok = ::openmldb::codec::EncodeRows(tmp, total_block_size, pairs); - if (ok == -1) { - PDLOG(WARNING, "fail to encode rows"); - return -4; - } - *count = tmp.size(); - return 0; -} int32_t TabletImpl::CountIndex(uint64_t expire_time, uint64_t expire_cnt, ::openmldb::storage::TTLType ttl_type, ::openmldb::storage::TableIterator* it, const ::openmldb::api::CountRequest* request, @@ -1247,12 +1161,13 @@ void TabletImpl::Scan(RpcController* controller, const ::openmldb::api::ScanRequ int32_t code = 0; bool is_finish = true; if (!request->has_use_attachment() || !request->use_attachment()) { - std::string* pairs = response->mutable_pairs(); - code = ScanIndex(request, *table_meta, vers_schema, &combine_it, pairs, &count, &is_finish); + butil::IOBuf buf; + code = ScanIndex(request, *table_meta, vers_schema, false, &combine_it, &buf, &count, &is_finish); + buf.copy_to(response->mutable_pairs()); } else { auto* cntl = dynamic_cast(controller); butil::IOBuf& buf = cntl->response_attachment(); - code = ScanIndex(request, *table_meta, vers_schema, &combine_it, &buf, &count, &is_finish); + code = ScanIndex(request, *table_meta, vers_schema, true, &combine_it, &buf, &count, &is_finish); response->set_buf_size(buf.size()); DLOG(INFO) << " scan " << request->pk() << " with buf size " << buf.size(); } @@ -1435,14 +1350,12 @@ void TabletImpl::Traverse(RpcController* controller, const ::openmldb::api::Trav DEBUGLOG("tid %u, pid %u seek to first", tid, pid); it->SeekToFirst(); } - std::map>> value_map; - std::vector key_seq; - uint32_t total_block_size = 0; bool remove_duplicated_record = false; if (request->has_enable_remove_duplicated_record()) { remove_duplicated_record = request->enable_remove_duplicated_record(); } uint32_t scount = 0; + butil::IOBuf buf; for (; it->Valid(); it->Next()) { if (request->limit() > 0 && scount > request->limit() - 1) { DEBUGLOG("reache the limit %u ", request->limit()); @@ -1464,16 +1377,9 @@ void TabletImpl::Traverse(RpcController* controller, const ::openmldb::api::Trav continue; } } - auto map_it = value_map.find(last_pk); - if (map_it == value_map.end()) { - auto pair = value_map.emplace(last_pk, std::vector>()); - map_it = pair.first; - map_it->second.reserve(request->limit()); - key_seq.emplace_back(map_it->first); - } openmldb::base::Slice value = it->GetValue(); - map_it->second.emplace_back(it->GetKey(), value); - total_block_size += last_pk.length() + value.size(); + DLOG(INFO) << "encode pk " << it->GetPK() << " ts " << it->GetKey() << " size " << value.size(); + ::openmldb::codec::EncodeFull(it->GetPK(), it->GetKey(), value.data(), value.size(), &buf); scount++; if (FLAGS_max_traverse_cnt > 0 && it->GetCount() >= FLAGS_max_traverse_cnt) { DEBUGLOG("traverse cnt %lu max %lu, key %s ts %lu", it->GetCount(), FLAGS_max_traverse_cnt, last_pk.c_str(), @@ -1493,26 +1399,7 @@ void TabletImpl::Traverse(RpcController* controller, const ::openmldb::api::Trav } else if (scount < request->limit()) { is_finish = true; } - uint32_t total_size = scount * (8 + 4 + 4) + total_block_size; - std::string* pairs = response->mutable_pairs(); - if (scount <= 0) { - pairs->resize(0); - } else { - pairs->resize(total_size); - } - char* rbuffer = reinterpret_cast(&((*pairs)[0])); - uint32_t offset = 0; - for (const auto& key : key_seq) { - auto iter = value_map.find(key); - if (iter == value_map.end()) { - continue; - } - for (const auto& pair : iter->second) { - DLOG(INFO) << "encode pk " << key << " ts " << pair.first << " size " << pair.second.size(); - ::openmldb::codec::EncodeFull(key, pair.first, pair.second.data(), pair.second.size(), rbuffer, offset); - offset += (4 + 4 + 8 + key.length() + pair.second.size()); - } - } + buf.copy_to(response->mutable_pairs()); delete it; DLOG(INFO) << "tid " << tid << " pid " << pid << " traverse count " << scount << " last_pk " << last_pk << " last_time " << last_time << " ts_pos " << ts_pos; diff --git a/src/tablet/tablet_impl.h b/src/tablet/tablet_impl.h index d48f192ae26..7207b3ab8bd 100644 --- a/src/tablet/tablet_impl.h +++ b/src/tablet/tablet_impl.h @@ -239,14 +239,9 @@ class TabletImpl : public ::openmldb::api::TabletServer { const std::map>& vers_schema, CombineIterator* combine_it, std::string* value, uint64_t* ts); - // scan specified ttl type index int32_t ScanIndex(const ::openmldb::api::ScanRequest* request, const ::openmldb::api::TableMeta& meta, - const std::map>& vers_schema, CombineIterator* combine_it, - std::string* pairs, uint32_t* count, bool* is_finish); - - int32_t ScanIndex(const ::openmldb::api::ScanRequest* request, const ::openmldb::api::TableMeta& meta, - const std::map>& vers_schema, CombineIterator* combine_it, - butil::IOBuf* buf, uint32_t* count, bool* is_finish); + const std::map>& vers_schema, bool use_attachment, + CombineIterator* combine_it, butil::IOBuf* buf, uint32_t* count, bool* is_finish); int32_t CountIndex(uint64_t expire_time, uint64_t expire_cnt, ::openmldb::storage::TTLType ttl_type, ::openmldb::storage::TableIterator* it, const ::openmldb::api::CountRequest* request, diff --git a/src/tablet/tablet_impl_test.cc b/src/tablet/tablet_impl_test.cc index d7bdc631611..0780e05af69 100644 --- a/src/tablet/tablet_impl_test.cc +++ b/src/tablet/tablet_impl_test.cc @@ -128,17 +128,12 @@ bool RollWLogFile(::openmldb::storage::WriteHandle** wh, ::openmldb::storage::Lo return true; } -void PrepareLatestTableData(TabletImpl& tablet, int32_t tid, int32_t pid, bool compress = false) { // NOLINT +void PrepareLatestTableData(TabletImpl& tablet, int32_t tid, int32_t pid) { // NOLINT for (int32_t i = 0; i < 100; i++) { ::openmldb::api::PutRequest prequest; ::openmldb::test::SetDimension(0, std::to_string(i % 10), prequest.add_dimensions()); prequest.set_time(i + 1); std::string value = ::openmldb::test::EncodeKV(std::to_string(i % 10), std::to_string(i)); - if (compress) { - std::string compressed; - ::snappy::Compress(value.c_str(), value.length(), &compressed); - value.swap(compressed); - } prequest.set_value(value); prequest.set_tid(tid); prequest.set_pid(pid); @@ -153,11 +148,6 @@ void PrepareLatestTableData(TabletImpl& tablet, int32_t tid, int32_t pid, bool c ::openmldb::test::SetDimension(0, "10", prequest.add_dimensions()); prequest.set_time(i % 10 + 1); std::string value = ::openmldb::test::EncodeKV("10", std::to_string(i)); - if (compress) { - std::string compressed; - ::snappy::Compress(value.c_str(), value.length(), &compressed); - value.swap(compressed); - } prequest.set_value(value); prequest.set_tid(tid); prequest.set_pid(pid); @@ -5331,7 +5321,7 @@ TEST_P(TabletImplTest, PutCompress) { MockClosure closure; tablet.CreateTable(NULL, &request, &response, &closure); ASSERT_EQ(0, response.code()); - PrepareLatestTableData(tablet, id, 0, true); + PrepareLatestTableData(tablet, id, 0); } { From 714369eb53a57305db066ea9144c4d59265834c4 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Wed, 15 Nov 2023 11:28:38 +0800 Subject: [PATCH 097/111] ci: fix go-sdk (#3593) --- .github/workflows/sdk.yml | 1 + 1 file changed, 1 insertion(+) diff --git a/.github/workflows/sdk.yml b/.github/workflows/sdk.yml index 8f4dc6bd628..dc4dd94a2b6 100644 --- a/.github/workflows/sdk.yml +++ b/.github/workflows/sdk.yml @@ -352,6 +352,7 @@ jobs: image: ghcr.io/4paradigm/hybridsql:latest env: OPENMLDB_BUILD_TARGET: "openmldb" + OPENMLDB_MODE: standalone steps: - uses: actions/checkout@v2 From 2fb650afec73bc3034e2a422ff98983b9d3901e1 Mon Sep 17 00:00:00 2001 From: dl239 Date: Wed, 15 Nov 2023 11:29:57 +0800 Subject: [PATCH 098/111] feat: add zk auth (#3581) --- docs/en/deploy/conf.md | 7 +++ docs/zh/deploy/conf.md | 7 +++ .../openmldb/common/zk/ZKClient.java | 23 +++++++- .../openmldb/common/zk/ZKConfig.java | 2 + .../_4paradigm/openmldb/sdk/SdkOption.java | 2 + .../openmldb/synctool/SyncToolConfig.java | 2 + .../openmldb/synctool/SyncToolImpl.java | 2 + .../taskmanager/client/TaskManagerClient.java | 27 ++++++++- .../taskmanager/config/TaskManagerConfig.java | 4 ++ .../server/impl/TaskManagerImpl.java | 1 + python/openmldb_sdk/openmldb/sdk/sdk.py | 2 + release/conf/apiserver.flags.template | 1 + release/conf/nameserver.flags.template | 1 + release/conf/tablet.flags.template | 1 + src/cmd/openmldb.cc | 6 +- src/cmd/sql_cmd.h | 4 ++ src/datacollector/data_collector.cc | 5 +- src/flags.cc | 2 + src/nameserver/cluster_info.cc | 3 +- .../name_server_create_remote_test.cc | 2 - src/nameserver/name_server_impl.cc | 5 +- src/nameserver/name_server_test.cc | 5 +- src/nameserver/new_server_env_test.cc | 5 +- src/proto/name_server.proto | 2 + src/sdk/db_sdk.cc | 4 +- src/sdk/db_sdk.h | 5 +- src/sdk/sql_cluster_router.cc | 2 + src/sdk/sql_router.h | 2 + src/tablet/tablet_impl.cc | 5 +- src/tablet/tablet_impl_keep_alive_test.cc | 2 +- src/zk/dist_lock_test.cc | 4 +- src/zk/zk_client.cc | 32 ++++++++--- src/zk/zk_client.h | 9 ++- src/zk/zk_client_test.cc | 56 ++++++++++++++++--- 34 files changed, 206 insertions(+), 36 deletions(-) diff --git a/docs/en/deploy/conf.md b/docs/en/deploy/conf.md index 11667427247..138a414fa3d 100644 --- a/docs/en/deploy/conf.md +++ b/docs/en/deploy/conf.md @@ -9,6 +9,8 @@ # If you are deploying the standalone version, you do not need to configure zk_cluster and zk_root_path, just comment these two configurations. Deploying the cluster version needs to configure these two items, and the two configurations of all nodes in a cluster must be consistent #--zk_cluster=127.0.0.1:7181 #--zk_root_path=/openmldb_cluster +# set the username and password of zookeeper if authentication is enabled +#--zk_cert=user:passwd # The address of the tablet needs to be specified in the standalone version, and this configuration can be ignored in the cluster version --tablet=127.0.0.1:9921 # Configure log directory @@ -76,6 +78,8 @@ # If you start the cluster version, you need to specify the address of zk and the node path of the cluster in zk #--zk_cluster=127.0.0.1:7181 #--zk_root_path=/openmldb_cluster +# set the username and password of zookeeper if authentication is enabled +#--zk_cert=user:passwd # Configure the thread pool size, it is recommended to be consistent with the number of CPU cores --thread_pool_size=24 @@ -218,6 +222,8 @@ # If the deployed openmldb is a cluster version, you need to specify the zk address and the cluster zk node directory #--zk_cluster=127.0.0.1:7181 #--zk_root_path=/openmldb_cluster +# set the username and password of zookeeper if authentication is enabled +#--zk_cert=user:passwd # configure log path --openmldb_log_dir=./logs @@ -249,6 +255,7 @@ zookeeper.connection_timeout=5000 zookeeper.max_retries=10 zookeeper.base_sleep_time=1000 zookeeper.max_connect_waitTime=30000 +#zookeeper.cert=user:passwd # Spark Config spark.home= diff --git a/docs/zh/deploy/conf.md b/docs/zh/deploy/conf.md index ef05f0c8dc9..de538720e5d 100644 --- a/docs/zh/deploy/conf.md +++ b/docs/zh/deploy/conf.md @@ -9,6 +9,8 @@ # 如果是部署单机版不需要配置zk_cluster和zk_root_path,把这俩配置注释即可. 部署集群版需要配置这两项,一个集群中所有节点的这两个配置必须保持一致 #--zk_cluster=127.0.0.1:7181 #--zk_root_path=/openmldb_cluster +# 配置zk认证的用户名和密码, 用冒号分割 +#--zk_cert=user:passwd # 单机版需要指定tablet的地址, 集群版此配置可忽略 --tablet=127.0.0.1:9921 # 配置log目录 @@ -76,6 +78,8 @@ # 如果启动集群版需要指定zk的地址和集群在zk的节点路径 #--zk_cluster=127.0.0.1:7181 #--zk_root_path=/openmldb_cluster +# 配置zk认证的用户名和密码, 用冒号分割 +#--zk_cert=user:passwd # 配置线程池大小,建议和cpu核数一致 --thread_pool_size=24 @@ -222,6 +226,8 @@ # 如果部署的openmldb是集群版,需要指定zk地址和集群zk节点目录 #--zk_cluster=127.0.0.1:7181 #--zk_root_path=/openmldb_cluster +# 配置zk认证的用户名和密码, 用冒号分割 +#--zk_cert=user:passwd # 配置日志路径 --openmldb_log_dir=./logs @@ -254,6 +260,7 @@ zookeeper.connection_timeout=5000 zookeeper.max_retries=10 zookeeper.base_sleep_time=1000 zookeeper.max_connect_waitTime=30000 +#zookeeper.cert=user:passwd # Spark Config spark.home= diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/zk/ZKClient.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/zk/ZKClient.java index 256174c6573..85a1cf0422d 100644 --- a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/zk/ZKClient.java +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/zk/ZKClient.java @@ -20,8 +20,11 @@ import org.apache.curator.RetryPolicy; import org.apache.curator.framework.CuratorFramework; import org.apache.curator.framework.CuratorFrameworkFactory; +import org.apache.curator.framework.api.ACLProvider; import org.apache.curator.retry.ExponentialBackoffRetry; import org.apache.zookeeper.CreateMode; +import org.apache.zookeeper.ZooDefs; +import org.apache.zookeeper.data.ACL; import java.util.concurrent.TimeUnit; import java.util.List; @@ -46,12 +49,26 @@ public CuratorFramework getClient() { public boolean connect() throws InterruptedException { log.info("ZKClient connect with config: {}", config); RetryPolicy retryPolicy = new ExponentialBackoffRetry(config.getBaseSleepTime(), config.getMaxRetries()); - CuratorFramework client = CuratorFrameworkFactory.builder() + CuratorFrameworkFactory.Builder builder = CuratorFrameworkFactory.builder() .connectString(config.getCluster()) .sessionTimeoutMs(config.getSessionTimeout()) .connectionTimeoutMs(config.getConnectionTimeout()) - .retryPolicy(retryPolicy) - .build(); + .retryPolicy(retryPolicy); + if (!config.getCert().isEmpty()) { + builder.authorization("digest", config.getCert().getBytes()) + .aclProvider(new ACLProvider() { + @Override + public List getDefaultAcl() { + return ZooDefs.Ids.CREATOR_ALL_ACL; + } + + @Override + public List getAclForPath(String s) { + return ZooDefs.Ids.CREATOR_ALL_ACL; + } + }); + } + CuratorFramework client = builder.build(); client.start(); if (!client.blockUntilConnected(config.getMaxConnectWaitTime(), TimeUnit.MILLISECONDS)) { return false; diff --git a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/zk/ZKConfig.java b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/zk/ZKConfig.java index e215533a483..f0721a2f256 100644 --- a/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/zk/ZKConfig.java +++ b/java/openmldb-common/src/main/java/com/_4paradigm/openmldb/common/zk/ZKConfig.java @@ -32,5 +32,7 @@ public class ZKConfig { private int baseSleepTime = 1000; @Builder.Default private int maxConnectWaitTime = 30000; + @Builder.Default + private String cert = ""; } diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/SdkOption.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/SdkOption.java index 830f6d1f097..83dd73cf657 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/SdkOption.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/sdk/SdkOption.java @@ -33,6 +33,7 @@ public class SdkOption { private String sparkConfPath = ""; private int zkLogLevel = 3; private String zkLogFile = ""; + private String zkCert = ""; // options for standalone mode private String host = ""; @@ -70,6 +71,7 @@ public SQLRouterOptions buildSQLRouterOptions() throws SqlException { copt.setSpark_conf_path(getSparkConfPath()); copt.setZk_log_level(getZkLogLevel()); copt.setZk_log_file(getZkLogFile()); + copt.setZk_cert(getZkCert()); // base buildBaseOptions(copt); diff --git a/java/openmldb-synctool/src/main/java/com/_4paradigm/openmldb/synctool/SyncToolConfig.java b/java/openmldb-synctool/src/main/java/com/_4paradigm/openmldb/synctool/SyncToolConfig.java index 26680f85c17..4fdb22834db 100644 --- a/java/openmldb-synctool/src/main/java/com/_4paradigm/openmldb/synctool/SyncToolConfig.java +++ b/java/openmldb-synctool/src/main/java/com/_4paradigm/openmldb/synctool/SyncToolConfig.java @@ -37,6 +37,7 @@ public class SyncToolConfig { // public static int CHANNEL_KEEP_ALIVE_TIME; public static String ZK_CLUSTER; public static String ZK_ROOT_PATH; + public static String ZK_CERT; public static String SYNC_TASK_PROGRESS_PATH; public static String HADOOP_CONF_DIR; @@ -86,6 +87,7 @@ private static void parseFromProperties(Properties prop) { if (ZK_ROOT_PATH.isEmpty()) { throw new RuntimeException("zookeeper.root_path should not be empty"); } + ZK_CERT = prop.getProperty("zookeeper.cert", ""); HADOOP_CONF_DIR = prop.getProperty("hadoop.conf.dir", ""); if (HADOOP_CONF_DIR.isEmpty()) { diff --git a/java/openmldb-synctool/src/main/java/com/_4paradigm/openmldb/synctool/SyncToolImpl.java b/java/openmldb-synctool/src/main/java/com/_4paradigm/openmldb/synctool/SyncToolImpl.java index f63ff2ae406..0e98cffa6f3 100644 --- a/java/openmldb-synctool/src/main/java/com/_4paradigm/openmldb/synctool/SyncToolImpl.java +++ b/java/openmldb-synctool/src/main/java/com/_4paradigm/openmldb/synctool/SyncToolImpl.java @@ -85,11 +85,13 @@ public SyncToolImpl(String endpoint) throws SqlException, InterruptedException { this.zkClient = new ZKClient(ZKConfig.builder() .cluster(SyncToolConfig.ZK_CLUSTER) .namespace(SyncToolConfig.ZK_ROOT_PATH) + .cert(SyncToolConfig.ZK_CERT) .build()); Preconditions.checkState(zkClient.connect(), "zk connect failed"); SdkOption option = new SdkOption(); option.setZkCluster(SyncToolConfig.ZK_CLUSTER); option.setZkPath(SyncToolConfig.ZK_ROOT_PATH); + option.setZkCert(SyncToolConfig.ZK_CERT); this.router = new SqlClusterExecutor(option); this.zkCollectorPath = SyncToolConfig.ZK_ROOT_PATH + "/sync_tool/collector"; diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/client/TaskManagerClient.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/client/TaskManagerClient.java index ad4bc157b6e..309154233f8 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/client/TaskManagerClient.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/client/TaskManagerClient.java @@ -30,9 +30,12 @@ import org.apache.commons.logging.LogFactory; import org.apache.curator.framework.CuratorFramework; import org.apache.curator.framework.CuratorFrameworkFactory; +import org.apache.curator.framework.api.ACLProvider; import org.apache.curator.framework.recipes.cache.NodeCache; import org.apache.curator.framework.recipes.cache.NodeCacheListener; import org.apache.curator.retry.ExponentialBackoffRetry; +import org.apache.zookeeper.ZooDefs; +import org.apache.zookeeper.data.ACL; import org.apache.zookeeper.data.Stat; import java.util.ArrayList; import java.util.HashMap; @@ -59,16 +62,34 @@ public TaskManagerClient(String endpoint) { } public TaskManagerClient(String zkCluster, String zkPath) throws Exception { + this(zkCluster, zkPath, ""); + } + + public TaskManagerClient(String zkCluster, String zkPath, String zkCert) throws Exception { if (zkCluster == null || zkPath == null) { logger.info("Zookeeper address is wrong, please check the configuration"); } String masterZnode = zkPath + "/taskmanager/leader"; - zkClient = CuratorFrameworkFactory.builder() + CuratorFrameworkFactory.Builder builder = CuratorFrameworkFactory.builder() .connectString(zkCluster) .sessionTimeoutMs(10000) - .retryPolicy(new ExponentialBackoffRetry(1000, 10)) - .build(); + .retryPolicy(new ExponentialBackoffRetry(1000, 10)); + if (!zkCert.isEmpty()) { + builder.authorization("digest", zkCert.getBytes()) + .aclProvider(new ACLProvider() { + @Override + public List getDefaultAcl() { + return ZooDefs.Ids.CREATOR_ALL_ACL; + } + + @Override + public List getAclForPath(String s) { + return ZooDefs.Ids.CREATOR_ALL_ACL; + } + }); + } + zkClient = builder.build(); zkClient.start(); Stat stat = zkClient.checkExists().forPath(masterZnode); if (stat != null) { // The original master exists and is directly connected to it. diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java index 76642ff17d6..784756ba726 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java @@ -101,6 +101,10 @@ public static String getZkRootPath() { return getString("zookeeper.root_path"); } + public static String getZkCert() { + return props.getProperty("zookeeper.cert", ""); + } + public static int getZkConnectionTimeout() { return getInt("zookeeper.connection_timeout"); } diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/impl/TaskManagerImpl.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/impl/TaskManagerImpl.java index 6fd43d4200c..695338925d8 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/impl/TaskManagerImpl.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/server/impl/TaskManagerImpl.java @@ -80,6 +80,7 @@ private void initExternalFunction() throws InterruptedException { .connectionTimeout(TaskManagerConfig.getZkConnectionTimeout()) .maxConnectWaitTime(TaskManagerConfig.getZkMaxConnectWaitTime()) .maxRetries(TaskManagerConfig.getZkMaxRetries()) + .cert(TaskManagerConfig.getZkCert()) .build()); zkClient.connect(); diff --git a/python/openmldb_sdk/openmldb/sdk/sdk.py b/python/openmldb_sdk/openmldb/sdk/sdk.py index bc8454039b4..e079f77c5d3 100644 --- a/python/openmldb_sdk/openmldb/sdk/sdk.py +++ b/python/openmldb_sdk/openmldb/sdk/sdk.py @@ -52,6 +52,8 @@ def init(self): options.zk_log_level = int(self.options_map['zkLogLevel']) if 'zkLogFile' in self.options_map: options.zk_log_file = self.options_map['zkLogFile'] + if 'zkCert' in self.options_map: + options.zk_cert = self.options_map['zkCert'] else: options = sql_router_sdk.StandaloneOptions() # use host diff --git a/release/conf/apiserver.flags.template b/release/conf/apiserver.flags.template index 539bcc8e4a4..5429b305c3a 100644 --- a/release/conf/apiserver.flags.template +++ b/release/conf/apiserver.flags.template @@ -3,6 +3,7 @@ --role=apiserver --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb +#--zk_cert=user:passwd --openmldb_log_dir=./logs --log_level=info diff --git a/release/conf/nameserver.flags.template b/release/conf/nameserver.flags.template index 445833d194a..b738503bfcc 100644 --- a/release/conf/nameserver.flags.template +++ b/release/conf/nameserver.flags.template @@ -3,6 +3,7 @@ --role=nameserver --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb +#--zk_cert=user:passwd --openmldb_log_dir=./logs --log_level=info diff --git a/release/conf/tablet.flags.template b/release/conf/tablet.flags.template index 3d126d74123..29e0bd7d374 100644 --- a/release/conf/tablet.flags.template +++ b/release/conf/tablet.flags.template @@ -6,6 +6,7 @@ --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb +#--zk_cert=user:passwd # thread_pool_size建议和cpu核数一致 --thread_pool_size=24 diff --git a/src/cmd/openmldb.cc b/src/cmd/openmldb.cc index d132190f588..8c07cb252da 100644 --- a/src/cmd/openmldb.cc +++ b/src/cmd/openmldb.cc @@ -62,6 +62,8 @@ DECLARE_string(nameserver); DECLARE_int32(port); DECLARE_string(zk_cluster); DECLARE_string(zk_root_path); +DECLARE_string(zk_auth_schema); +DECLARE_string(zk_cert); DECLARE_int32(thread_pool_size); DECLARE_int32(put_concurrency_limit); DECLARE_int32(get_concurrency_limit); @@ -3653,7 +3655,7 @@ void StartNsClient() { std::shared_ptr<::openmldb::zk::ZkClient> zk_client; if (!FLAGS_zk_cluster.empty()) { zk_client = std::make_shared<::openmldb::zk::ZkClient>(FLAGS_zk_cluster, "", - FLAGS_zk_session_timeout, "", FLAGS_zk_root_path); + FLAGS_zk_session_timeout, "", FLAGS_zk_root_path, FLAGS_zk_auth_schema, FLAGS_zk_cert); if (!zk_client->Init()) { std::cout << "zk client init failed" << std::endl; return; @@ -3876,6 +3878,8 @@ void StartAPIServer() { cluster_options.zk_cluster = FLAGS_zk_cluster; cluster_options.zk_path = FLAGS_zk_root_path; cluster_options.zk_session_timeout = FLAGS_zk_session_timeout; + cluster_options.zk_auth_schema = FLAGS_zk_auth_schema; + cluster_options.zk_cert = FLAGS_zk_cert; if (!api_service->Init(cluster_options)) { PDLOG(WARNING, "Fail to init"); exit(1); diff --git a/src/cmd/sql_cmd.h b/src/cmd/sql_cmd.h index 2d941c65a35..6b8eae72afb 100644 --- a/src/cmd/sql_cmd.h +++ b/src/cmd/sql_cmd.h @@ -41,6 +41,8 @@ DEFINE_string(spark_conf, "", "The config file of Spark job"); // cluster mode DECLARE_string(zk_cluster); DECLARE_string(zk_root_path); +DECLARE_string(zk_auth_schema); +DECLARE_string(zk_cert); DECLARE_int32(zk_session_timeout); DECLARE_uint32(zk_log_level); DECLARE_string(zk_log_file); @@ -267,6 +269,8 @@ bool InitClusterSDK() { copt.zk_session_timeout = FLAGS_zk_session_timeout; copt.zk_log_level = FLAGS_zk_log_level; copt.zk_log_file = FLAGS_zk_log_file; + copt.zk_auth_schema = FLAGS_zk_auth_schema; + copt.zk_cert = FLAGS_zk_cert; cs = new ::openmldb::sdk::ClusterSDK(copt); if (!cs->Init()) { diff --git a/src/datacollector/data_collector.cc b/src/datacollector/data_collector.cc index 8cf02a3ab2b..cb1a8f254e2 100644 --- a/src/datacollector/data_collector.cc +++ b/src/datacollector/data_collector.cc @@ -33,6 +33,8 @@ DECLARE_string(zk_cluster); DECLARE_string(zk_root_path); +DECLARE_string(zk_auth_schema); +DECLARE_string(zk_cert); DECLARE_int32(thread_pool_size); DECLARE_int32(zk_session_timeout); DECLARE_int32(zk_keep_alive_check_interval); @@ -179,7 +181,8 @@ bool DataCollectorImpl::Init(const std::string& endpoint) { } bool DataCollectorImpl::Init(const std::string& zk_cluster, const std::string& zk_path, const std::string& endpoint) { zk_client_ = std::make_shared(zk_cluster, FLAGS_zk_session_timeout, endpoint, zk_path, - zk_path + kDataCollectorRegisterPath); + zk_path + kDataCollectorRegisterPath, + FLAGS_zk_auth_schema, FLAGS_zk_cert); if (!zk_client_->Init()) { LOG(WARNING) << "fail to init zk client"; return false; diff --git a/src/flags.cc b/src/flags.cc index bed34c0150d..42e085781eb 100644 --- a/src/flags.cc +++ b/src/flags.cc @@ -30,6 +30,8 @@ DEFINE_uint32(tablet_heartbeat_timeout, 5 * 60 * 1000, "config the heartbeat of DEFINE_uint32(tablet_offline_check_interval, 1000, "config the check interval of tablet offline. unit is milliseconds"); DEFINE_string(zk_cluster, "", "config the zookeeper cluster eg ip:2181,ip2:2181,ip3:2181"); DEFINE_string(zk_root_path, "/openmldb", "config the root path of zookeeper"); +DEFINE_string(zk_auth_schema, "digest", "config the id of authentication schema"); +DEFINE_string(zk_cert, "", "config the application credentials"); DEFINE_string(tablet, "", "config the endpoint of tablet"); DEFINE_string(nameserver, "", "config the endpoint of nameserver"); DEFINE_int32(zk_keep_alive_check_interval, 15000, "config the interval of keep alive check. unit is milliseconds"); diff --git a/src/nameserver/cluster_info.cc b/src/nameserver/cluster_info.cc index de30fc8d18f..ec685ce8b3f 100644 --- a/src/nameserver/cluster_info.cc +++ b/src/nameserver/cluster_info.cc @@ -94,7 +94,8 @@ void ClusterInfo::UpdateNSClient(const std::vector& children) { int ClusterInfo::Init(std::string& msg) { zk_client_ = std::make_shared<::openmldb::zk::ZkClient>(cluster_add_.zk_endpoints(), FLAGS_zk_session_timeout, "", - cluster_add_.zk_path(), cluster_add_.zk_path() + "/leader"); + cluster_add_.zk_path(), cluster_add_.zk_path() + "/leader", + cluster_add_.zk_auth_schema(), cluster_add_.zk_cert()); bool ok = zk_client_->Init(); for (int i = 1; i < 3; i++) { if (ok) { diff --git a/src/nameserver/name_server_create_remote_test.cc b/src/nameserver/name_server_create_remote_test.cc index 0075999b645..def3d1d0a07 100644 --- a/src/nameserver/name_server_create_remote_test.cc +++ b/src/nameserver/name_server_create_remote_test.cc @@ -43,8 +43,6 @@ DECLARE_uint32(name_server_task_max_concurrency); DECLARE_uint32(system_table_replica_num); DECLARE_bool(auto_failover); -using ::openmldb::zk::ZkClient; - namespace openmldb { namespace nameserver { diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index 862ee42d320..c76054d622b 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -51,6 +51,8 @@ DECLARE_string(endpoint); DECLARE_string(zk_cluster); DECLARE_string(zk_root_path); +DECLARE_string(zk_auth_schema); +DECLARE_string(zk_cert); DECLARE_string(tablet); DECLARE_int32(zk_session_timeout); DECLARE_int32(zk_keep_alive_check_interval); @@ -1411,7 +1413,8 @@ bool NameServerImpl::Init(const std::string& zk_cluster, const std::string& zk_p zone_info_.set_replica_alias(""); zone_info_.set_zone_term(1); LOG(INFO) << "zone name " << zone_info_.zone_name(); - zk_client_ = new ZkClient(zk_cluster, real_endpoint, FLAGS_zk_session_timeout, endpoint, zk_path); + zk_client_ = new ZkClient(zk_cluster, real_endpoint, FLAGS_zk_session_timeout, endpoint, zk_path, + FLAGS_zk_auth_schema, FLAGS_zk_cert); if (!zk_client_->Init()) { PDLOG(WARNING, "fail to init zookeeper with cluster[%s]", zk_cluster.c_str()); return false; diff --git a/src/nameserver/name_server_test.cc b/src/nameserver/name_server_test.cc index f1ad0f86eab..eee5d79f351 100644 --- a/src/nameserver/name_server_test.cc +++ b/src/nameserver/name_server_test.cc @@ -38,6 +38,8 @@ DECLARE_string(ssd_root_path); DECLARE_string(hdd_root_path); DECLARE_string(zk_cluster); DECLARE_string(zk_root_path); +DECLARE_string(zk_auth_schema); +DECLARE_string(zk_cert); DECLARE_int32(zk_session_timeout); DECLARE_int32(request_timeout_ms); DECLARE_int32(zk_keep_alive_check_interval); @@ -171,7 +173,8 @@ TEST_P(NameServerImplTest, MakesnapshotTask) { sleep(5); - ZkClient zk_client(FLAGS_zk_cluster, "", 1000, FLAGS_endpoint, FLAGS_zk_root_path); + ZkClient zk_client(FLAGS_zk_cluster, "", 1000, FLAGS_endpoint, FLAGS_zk_root_path, + FLAGS_zk_auth_schema, FLAGS_zk_cert); ok = zk_client.Init(); ASSERT_TRUE(ok); std::string op_index_node = FLAGS_zk_root_path + "/op/op_index"; diff --git a/src/nameserver/new_server_env_test.cc b/src/nameserver/new_server_env_test.cc index e05d1bc509c..405e3f436e0 100644 --- a/src/nameserver/new_server_env_test.cc +++ b/src/nameserver/new_server_env_test.cc @@ -34,6 +34,8 @@ DECLARE_string(endpoint); DECLARE_string(db_root_path); DECLARE_string(zk_cluster); DECLARE_string(zk_root_path); +DECLARE_string(zk_auth_schema); +DECLARE_string(zk_cert); DECLARE_int32(zk_session_timeout); DECLARE_int32(request_timeout_ms); DECLARE_int32(request_timeout_ms); @@ -108,7 +110,8 @@ void SetSdkEndpoint(::openmldb::RpcClient<::openmldb::nameserver::NameServer_Stu void ShowNameServer(std::map* map) { std::shared_ptr<::openmldb::zk::ZkClient> zk_client; - zk_client = std::make_shared<::openmldb::zk::ZkClient>(FLAGS_zk_cluster, "", 1000, "", FLAGS_zk_root_path); + zk_client = std::make_shared<::openmldb::zk::ZkClient>(FLAGS_zk_cluster, "", 1000, "", FLAGS_zk_root_path, + FLAGS_zk_auth_schema, FLAGS_zk_cert); if (!zk_client->Init()) { ASSERT_TRUE(false); } diff --git a/src/proto/name_server.proto b/src/proto/name_server.proto index b0eb526d8e7..08383b4f7c0 100755 --- a/src/proto/name_server.proto +++ b/src/proto/name_server.proto @@ -365,6 +365,8 @@ message ClusterAddress { optional string zk_endpoints = 1; optional string zk_path = 2; optional string alias = 3; + optional string zk_auth_schema = 4; + optional string zk_cert = 5; } message GeneralRequest {} diff --git a/src/sdk/db_sdk.cc b/src/sdk/db_sdk.cc index c04e86d4f03..0f551853740 100644 --- a/src/sdk/db_sdk.cc +++ b/src/sdk/db_sdk.cc @@ -207,7 +207,9 @@ void ClusterSDK::CheckZk() { bool ClusterSDK::Init() { zk_client_ = new ::openmldb::zk::ZkClient(options_.zk_cluster, "", options_.zk_session_timeout, "", - options_.zk_path); + options_.zk_path, + options_.zk_auth_schema, + options_.zk_cert); bool ok = zk_client_->Init(options_.zk_log_level, options_.zk_log_file); if (!ok) { diff --git a/src/sdk/db_sdk.h b/src/sdk/db_sdk.h index 71e3e321241..c6d2cfbab76 100644 --- a/src/sdk/db_sdk.h +++ b/src/sdk/db_sdk.h @@ -43,11 +43,14 @@ struct ClusterOptions { int32_t zk_session_timeout = 2000; int32_t zk_log_level = 3; std::string zk_log_file; + std::string zk_auth_schema = "digest"; + std::string zk_cert; std::string to_string() { std::stringstream ss; ss << "zk options [cluster:" << zk_cluster << ", path:" << zk_path << ", zk_session_timeout:" << zk_session_timeout - << ", log_level:" << zk_log_level << ", log_file:" << zk_log_file << "]"; + << ", log_level:" << zk_log_level << ", log_file:" << zk_log_file + << ", zk_auth_schema:" << zk_auth_schema << ", zk_cert:" << zk_cert << "]"; return ss.str(); } }; diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 25b51991da6..2556eac681e 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -258,6 +258,8 @@ bool SQLClusterRouter::Init() { coptions.zk_session_timeout = ops->zk_session_timeout; coptions.zk_log_level = ops->zk_log_level; coptions.zk_log_file = ops->zk_log_file; + coptions.zk_auth_schema = ops->zk_auth_schema; + coptions.zk_cert = ops->zk_cert; cluster_sdk_ = new ClusterSDK(coptions); // TODO(hw): no detail error info bool ok = cluster_sdk_->Init(); diff --git a/src/sdk/sql_router.h b/src/sdk/sql_router.h index f88cc0b00f9..68186a83b00 100644 --- a/src/sdk/sql_router.h +++ b/src/sdk/sql_router.h @@ -58,6 +58,8 @@ struct SQLRouterOptions : BasicRouterOptions { std::string spark_conf_path; uint32_t zk_log_level = 3; // PY/JAVA SDK default info log std::string zk_log_file; + std::string zk_auth_schema = "digest"; + std::string zk_cert; }; struct StandaloneOptions : BasicRouterOptions { diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index bc319c105d7..16958e3aeb2 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -107,6 +107,8 @@ DECLARE_string(zk_cluster); DECLARE_string(zk_root_path); DECLARE_int32(zk_session_timeout); DECLARE_int32(zk_keep_alive_check_interval); +DECLARE_string(zk_auth_schema); +DECLARE_string(zk_cert); DECLARE_int32(binlog_sync_to_disk_interval); DECLARE_int32(binlog_delete_interval); @@ -190,7 +192,8 @@ bool TabletImpl::Init(const std::string& zk_cluster, const std::string& zk_path, deploy_collector_ = std::make_unique<::openmldb::statistics::DeployQueryTimeCollector>(); if (!zk_cluster.empty()) { - zk_client_ = new ZkClient(zk_cluster, real_endpoint, FLAGS_zk_session_timeout, endpoint, zk_path); + zk_client_ = new ZkClient(zk_cluster, real_endpoint, FLAGS_zk_session_timeout, endpoint, zk_path, + FLAGS_zk_auth_schema, FLAGS_zk_cert); bool ok = zk_client_->Init(); if (!ok) { PDLOG(ERROR, "fail to init zookeeper with cluster %s", zk_cluster.c_str()); diff --git a/src/tablet/tablet_impl_keep_alive_test.cc b/src/tablet/tablet_impl_keep_alive_test.cc index eafd3338b4d..7339ca80607 100644 --- a/src/tablet/tablet_impl_keep_alive_test.cc +++ b/src/tablet/tablet_impl_keep_alive_test.cc @@ -66,7 +66,7 @@ TEST_F(TabletImplTest, KeepAlive) { FLAGS_endpoint = "127.0.0.1:9527"; FLAGS_zk_cluster = "127.0.0.1:6181"; FLAGS_zk_root_path = "/rtidb2"; - ZkClient zk_client(FLAGS_zk_cluster, "", 1000, "test1", FLAGS_zk_root_path); + ZkClient zk_client(FLAGS_zk_cluster, "", 1000, "test1", FLAGS_zk_root_path, "", ""); bool ok = zk_client.Init(); ASSERT_TRUE(ok); ok = zk_client.Mkdir("/rtidb2/nodes"); diff --git a/src/zk/dist_lock_test.cc b/src/zk/dist_lock_test.cc index cf81d44ece2..0bf33604bf0 100644 --- a/src/zk/dist_lock_test.cc +++ b/src/zk/dist_lock_test.cc @@ -43,7 +43,7 @@ void OnLockedCallback() { call_invoked = true; } void OnLostCallback() {} TEST_F(DistLockTest, Lock) { - ZkClient client("127.0.0.1:6181", "", 10000, "127.0.0.1:9527", "/openmldb_lock"); + ZkClient client("127.0.0.1:6181", "", 10000, "127.0.0.1:9527", "/openmldb_lock", "", ""); bool ok = client.Init(); ASSERT_TRUE(ok); DistLock lock("/openmldb_lock/nameserver_lock", &client, boost::bind(&OnLockedCallback), @@ -59,7 +59,7 @@ TEST_F(DistLockTest, Lock) { lock.CurrentLockValue(current_lock); ASSERT_EQ("endpoint1", current_lock); call_invoked = false; - ZkClient client2("127.0.0.1:6181", "", 10000, "127.0.0.1:9527", "/openmldb_lock"); + ZkClient client2("127.0.0.1:6181", "", 10000, "127.0.0.1:9527", "/openmldb_lock", "", ""); ok = client2.Init(); if (!ok) { lock.Stop(); diff --git a/src/zk/zk_client.cc b/src/zk/zk_client.cc index 382ce4c00f2..ecc94c1251c 100644 --- a/src/zk/zk_client.cc +++ b/src/zk/zk_client.cc @@ -64,11 +64,15 @@ void ItemWatcher(zhandle_t* zh, int type, int state, const char* path, void* wat } ZkClient::ZkClient(const std::string& hosts, const std::string& real_endpoint, int32_t session_timeout, - const std::string& endpoint, const std::string& zk_root_path) + const std::string& endpoint, const std::string& zk_root_path, + const std::string& auth_schema, const std::string& cert) : hosts_(hosts), session_timeout_(session_timeout), endpoint_(endpoint), zk_root_path_(zk_root_path), + auth_schema_(auth_schema), + cert_(cert), + acl_vector_(ZOO_OPEN_ACL_UNSAFE), real_endpoint_(real_endpoint), nodes_root_path_(zk_root_path_ + "/nodes"), nodes_watch_callbacks_(), @@ -88,11 +92,15 @@ ZkClient::ZkClient(const std::string& hosts, const std::string& real_endpoint, i } ZkClient::ZkClient(const std::string& hosts, int32_t session_timeout, const std::string& endpoint, - const std::string& zk_root_path, const std::string& zone_path) + const std::string& zk_root_path, const std::string& zone_path, + const std::string& auth_schema, const std::string& cert) : hosts_(hosts), session_timeout_(session_timeout), endpoint_(endpoint), zk_root_path_(zk_root_path), + auth_schema_(auth_schema), + cert_(cert), + acl_vector_(ZOO_OPEN_ACL_UNSAFE), nodes_root_path_(zone_path), nodes_watch_callbacks_(), mu_(), @@ -133,6 +141,14 @@ bool ZkClient::Init(int log_level, const std::string& log_file) { PDLOG(WARNING, "fail to init zk handler with hosts %s, session_timeout %d", hosts_.c_str(), session_timeout_); return false; } + if (!cert_.empty()) { + if (zoo_add_auth(zk_, auth_schema_.c_str(), cert_.data(), cert_.length(), NULL, NULL) != ZOK) { + PDLOG(WARNING, "auth failed. schema: %s cert: %s", auth_schema_.c_str(), cert_.c_str()); + return false; + } + acl_vector_ = ZOO_CREATOR_ALL_ACL; + PDLOG(INFO, "auth ok. schema: %s cert: %s", auth_schema_.c_str(), cert_.c_str()); + } return true; } @@ -173,7 +189,7 @@ bool ZkClient::Register(bool startup_flag) { if (startup_flag) { value = "startup_" + endpoint_; } - int ret = zoo_create(zk_, node.c_str(), value.c_str(), value.size(), &ZOO_OPEN_ACL_UNSAFE, ZOO_EPHEMERAL, NULL, 0); + int ret = zoo_create(zk_, node.c_str(), value.c_str(), value.size(), &acl_vector_, ZOO_EPHEMERAL, NULL, 0); if (ret == ZOK) { PDLOG(INFO, "register self with endpoint %s ok", endpoint_.c_str()); registed_.store(true, std::memory_order_relaxed); @@ -231,7 +247,7 @@ bool ZkClient::RegisterName() { } PDLOG(WARNING, "set node with name %s value %s failed", sname.c_str(), value.c_str()); } else { - int ret = zoo_create(zk_, name.c_str(), value.c_str(), value.size(), &ZOO_OPEN_ACL_UNSAFE, 0, NULL, 0); + int ret = zoo_create(zk_, name.c_str(), value.c_str(), value.size(), &acl_vector_, 0, NULL, 0); if (ret == ZOK) { PDLOG(INFO, "register with name %s value %s ok", sname.c_str(), value.c_str()); return true; @@ -281,7 +297,7 @@ bool ZkClient::CreateNode(const std::string& node, const std::string& value, int uint32_t size = node.size() + 11; char path_buffer[size]; // NOLINT int ret = - zoo_create(zk_, node.c_str(), value.c_str(), value.size(), &ZOO_OPEN_ACL_UNSAFE, flags, path_buffer, size); + zoo_create(zk_, node.c_str(), value.c_str(), value.size(), &acl_vector_, flags, path_buffer, size); if (ret == ZOK) { assigned_path_name.assign(path_buffer, size - 1); PDLOG(INFO, "create node %s ok and real node name %s", node.c_str(), assigned_path_name.c_str()); @@ -371,9 +387,11 @@ bool ZkClient::GetNodeValueAndStat(const char* node, std::string* value, Stat* s bool ZkClient::DeleteNode(const std::string& node) { std::lock_guard lock(mu_); - if (zoo_delete(zk_, node.c_str(), -1) == ZOK) { + int ret = zoo_delete(zk_, node.c_str(), -1); + if (ret == ZOK) { return true; } + PDLOG(WARNING, "delete %s failed. error no is %d", node.c_str(), ret); return false; } @@ -597,7 +615,7 @@ bool ZkClient::MkdirNoLock(const std::string& path) { } full_path += *it; index++; - int ret = zoo_create(zk_, full_path.c_str(), "", 0, &ZOO_OPEN_ACL_UNSAFE, 0, NULL, 0); + int ret = zoo_create(zk_, full_path.c_str(), "", 0, &acl_vector_, 0, NULL, 0); if (ret == ZNODEEXISTS || ret == ZOK) { continue; } diff --git a/src/zk/zk_client.h b/src/zk/zk_client.h index e06c0de7e6a..344df5753e2 100644 --- a/src/zk/zk_client.h +++ b/src/zk/zk_client.h @@ -46,10 +46,12 @@ class ZkClient { // session_timeout, the session timeout // endpoint, the client endpoint ZkClient(const std::string& hosts, const std::string& real_endpoint, int32_t session_timeout, - const std::string& endpoint, const std::string& zk_root_path); + const std::string& endpoint, const std::string& zk_root_path, + const std::string& auth_schema, const std::string& cert); ZkClient(const std::string& hosts, int32_t session_timeout, const std::string& endpoint, - const std::string& zk_root_path, const std::string& zone_path); + const std::string& zk_root_path, const std::string& zone_path, + const std::string& auth_schema, const std::string& cert); ~ZkClient(); // init zookeeper connections @@ -145,6 +147,9 @@ class ZkClient { int32_t session_timeout_; std::string endpoint_; std::string zk_root_path_; + std::string auth_schema_; + std::string cert_; + struct ACL_vector acl_vector_; std::string real_endpoint_; FILE* zk_log_stream_file_ = NULL; diff --git a/src/zk/zk_client_test.cc b/src/zk/zk_client_test.cc index 0d4ffb5af83..04879c74359 100644 --- a/src/zk/zk_client_test.cc +++ b/src/zk/zk_client_test.cc @@ -49,13 +49,13 @@ void WatchCallback(const std::vector& endpoints) { } TEST_F(ZkClientTest, BadZk) { - ZkClient client("127.0.0.1:13181", "", session_timeout, "127.0.0.1:9527", "/openmldb"); + ZkClient client("127.0.0.1:13181", "", session_timeout, "127.0.0.1:9527", "/openmldb", "", ""); bool ok = client.Init(); ASSERT_FALSE(ok); } TEST_F(ZkClientTest, Init) { - ZkClient client("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9527", "/openmldb"); + ZkClient client("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9527", "/openmldb", "", ""); bool ok = client.Init(); ASSERT_TRUE(ok); ok = client.Register(); @@ -71,7 +71,7 @@ TEST_F(ZkClientTest, Init) { ok = client.WatchNodes(); ASSERT_TRUE(ok); { - ZkClient client2("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9528", "/openmldb"); + ZkClient client2("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9528", "/openmldb", "", ""); ok = client2.Init(); client2.Register(); ASSERT_TRUE(ok); @@ -83,7 +83,7 @@ TEST_F(ZkClientTest, Init) { } TEST_F(ZkClientTest, CreateNode) { - ZkClient client("127.0.0.1:6181", "", 1000, "127.0.0.1:9527", "/openmldb1"); + ZkClient client("127.0.0.1:6181", "", 1000, "127.0.0.1:9527", "/openmldb1", "", ""); bool ok = client.Init(); ASSERT_TRUE(ok); @@ -99,7 +99,7 @@ TEST_F(ZkClientTest, CreateNode) { ret = client.IsExistNode(node); ASSERT_EQ(ret, 0); - ZkClient client2("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9527", "/openmldb1"); + ZkClient client2("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9527", "/openmldb1", "", ""); ok = client2.Init(); ASSERT_TRUE(ok); @@ -109,7 +109,7 @@ TEST_F(ZkClientTest, CreateNode) { } TEST_F(ZkClientTest, ZkNodeChange) { - ZkClient client("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9527", "/openmldb1"); + ZkClient client("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9527", "/openmldb1", "", ""); bool ok = client.Init(); ASSERT_TRUE(ok); @@ -121,7 +121,7 @@ TEST_F(ZkClientTest, ZkNodeChange) { ret = client.IsExistNode(node); ASSERT_EQ(ret, 0); - ZkClient client2("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9527", "/openmldb1"); + ZkClient client2("127.0.0.1:6181", "", session_timeout, "127.0.0.1:9527", "/openmldb1", "", ""); ok = client2.Init(); ASSERT_TRUE(ok); std::atomic detect(false); @@ -146,6 +146,48 @@ TEST_F(ZkClientTest, ZkNodeChange) { ASSERT_TRUE(detect.load()); } +TEST_F(ZkClientTest, Auth) { + std::string node = "/openmldb_auth/node1"; + { + ZkClient client("127.0.0.1:6181", "", 1000, "127.0.0.1:9527", "/openmldb_auth", "digest", "user1:123456"); + bool ok = client.Init(); + ASSERT_TRUE(ok); + + int ret = client.IsExistNode(node); + ASSERT_EQ(ret, 1); + ok = client.CreateNode(node, "value"); + ASSERT_TRUE(ok); + ret = client.IsExistNode(node); + ASSERT_EQ(ret, 0); + } + { + ZkClient client("127.0.0.1:6181", "", 1000, "127.0.0.1:9527", "/openmldb_auth", "", ""); + bool ok = client.Init(); + ASSERT_TRUE(ok); + std::string value; + ASSERT_FALSE(client.GetNodeValue(node, value)); + ASSERT_FALSE(client.CreateNode("/openmldb_auth/node1/dd", "aaa")); + } + { + ZkClient client("127.0.0.1:6181", "", 1000, "127.0.0.1:9527", "/openmldb_auth", "digest", "user1:wrong"); + bool ok = client.Init(); + ASSERT_TRUE(ok); + std::string value; + ASSERT_FALSE(client.GetNodeValue(node, value)); + ASSERT_FALSE(client.CreateNode("/openmldb_auth/node1/dd", "aaa")); + } + { + ZkClient client("127.0.0.1:6181", "", 1000, "127.0.0.1:9527", "/openmldb_auth", "digest", "user1:123456"); + bool ok = client.Init(); + ASSERT_TRUE(ok); + std::string value; + ASSERT_TRUE(client.GetNodeValue(node, value)); + ASSERT_EQ("value", value); + ASSERT_TRUE(client.DeleteNode(node)); + ASSERT_TRUE(client.DeleteNode("/openmldb_auth")); + } +} + } // namespace zk } // namespace openmldb From 5d0d6380d0dd0787aaa4e1bcb379eb4aa8c87f04 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Wed, 15 Nov 2023 15:02:37 +0800 Subject: [PATCH 099/111] feat: left join (#3576) * refactor: iterator & table handler * refactor(runner): modulize runner.cc runner.cc is too large, sepreate RunnerBuilder, RunnerContext, Runner and ClusterTask in difference files * feat(sql): support left join * chore: refactor runner name & improve tests * fix(runner): build cluster request join runner For REQUESTJOIN(ANY1(T1), ANY2(T2)), ANY1 may optimize T1, REQUESTJOIN, ANY2 may optimize T2, building cluster task correctly --- cases/plan/join_query.yaml | 71 +- cases/query/fail_query.yaml | 21 + cases/query/left_join.yml | 575 +++++++++ .../toydb/src/storage/table_iterator.cc | 4 +- .../toydb/src/tablet/tablet_catalog.cc | 8 - .../toydb/src/tablet/tablet_catalog.h | 34 +- hybridse/include/codec/fe_row_codec.h | 3 + hybridse/include/codec/row_list.h | 8 +- hybridse/include/node/node_enum.h | 2 +- hybridse/include/vm/catalog.h | 57 +- hybridse/include/vm/mem_catalog.h | 132 +-- hybridse/include/vm/physical_op.h | 101 +- hybridse/include/vm/simple_catalog.h | 1 - hybridse/src/base/fe_slice.cc | 2 +- .../physical/batch_request_optimize_test.cc | 3 + hybridse/src/planv2/ast_node_converter.cc | 11 +- hybridse/src/testing/engine_test_base.cc | 2 + hybridse/src/vm/catalog_wrapper.cc | 178 +-- hybridse/src/vm/catalog_wrapper.h | 261 ++--- hybridse/src/vm/cluster_task.cc | 136 +++ hybridse/src/vm/cluster_task.h | 182 +++ hybridse/src/vm/engine.cc | 6 +- hybridse/src/vm/engine_compile_test.cc | 7 +- hybridse/src/vm/generator.cc | 176 ++- hybridse/src/vm/generator.h | 112 +- hybridse/src/vm/mem_catalog.cc | 25 +- hybridse/src/vm/runner.cc | 1028 +---------------- hybridse/src/vm/runner.h | 535 +-------- hybridse/src/vm/runner_builder.cc | 909 +++++++++++++++ hybridse/src/vm/runner_builder.h | 92 ++ hybridse/src/vm/runner_ctx.cc | 48 + hybridse/src/vm/runner_ctx.h | 99 ++ hybridse/src/vm/runner_test.cc | 15 - hybridse/src/vm/sql_compiler.cc | 7 +- hybridse/src/vm/sql_compiler.h | 4 +- hybridse/src/vm/sql_compiler_test.cc | 21 +- hybridse/src/vm/transform.cc | 15 +- src/base/ddl_parser_test.cc | 65 +- src/sdk/sql_sdk_test.h | 2 + 39 files changed, 2874 insertions(+), 2084 deletions(-) create mode 100644 cases/query/left_join.yml create mode 100644 hybridse/src/vm/cluster_task.cc create mode 100644 hybridse/src/vm/cluster_task.h create mode 100644 hybridse/src/vm/runner_builder.cc create mode 100644 hybridse/src/vm/runner_builder.h create mode 100644 hybridse/src/vm/runner_ctx.cc create mode 100644 hybridse/src/vm/runner_ctx.h diff --git a/cases/plan/join_query.yaml b/cases/plan/join_query.yaml index 4d2bbdc0e57..28021b54d4b 100644 --- a/cases/plan/join_query.yaml +++ b/cases/plan/join_query.yaml @@ -18,20 +18,83 @@ cases: sql: SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 full join t2 on t1.col1 = t2.col2; mode: physical-plan-unsupport - id: 2 + mode: request-unsupport desc: 简单SELECT LEFT JOIN - mode: runner-unsupport sql: SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 left join t2 on t1.col1 = t2.col2; + expect: + node_tree_str: | + +-node[kQuery]: kQuerySelect + +-distinct_opt: false + +-where_expr: null + +-group_expr_list: null + +-having_expr: null + +-order_expr_list: null + +-limit: null + +-select_list[list]: + | +-0: + | | +-node[kResTarget] + | | +-val: + | | | +-expr[column ref] + | | | +-relation_name: t1 + | | | +-column_name: COL1 + | | +-name: + | +-1: + | | +-node[kResTarget] + | | +-val: + | | | +-expr[column ref] + | | | +-relation_name: t1 + | | | +-column_name: COL2 + | | +-name: + | +-2: + | | +-node[kResTarget] + | | +-val: + | | | +-expr[column ref] + | | | +-relation_name: t2 + | | | +-column_name: COL1 + | | +-name: + | +-3: + | +-node[kResTarget] + | +-val: + | | +-expr[column ref] + | | +-relation_name: t2 + | | +-column_name: COL2 + | +-name: + +-tableref_list[list]: + | +-0: + | +-node[kTableRef]: kJoin + | +-join_type: LeftJoin + | +-left: + | | +-node[kTableRef]: kTable + | | +-table: t1 + | | +-alias: + | +-right: + | +-node[kTableRef]: kTable + | +-table: t2 + | +-alias: + | +-order_expressions: null + | +-on: + | +-expr[binary] + | +-=[list]: + | +-0: + | | +-expr[column ref] + | | +-relation_name: t1 + | | +-column_name: col1 + | +-1: + | +-expr[column ref] + | +-relation_name: t2 + | +-column_name: col2 + +-window_list: [] - id: 3 desc: 简单SELECT LAST JOIN sql: SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 last join t2 order by t2.col5 on t1.col1 = t2.col2; - id: 4 desc: 简单SELECT RIGHT JOIN sql: SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 right join t2 on t1.col1 = t2.col2; - mode: runner-unsupport + mode: physical-plan-unsupport - id: 5 desc: LeftJoin有不等式条件 sql: SELECT t1.col1 as t1_col1, t2.col2 as t2_col2 FROM t1 left join t2 on t1.col1 = t2.col2 and t2.col5 >= t1.col5; - mode: runner-unsupport + mode: request-unsupport - id: 6 desc: LastJoin有不等式条件 sql: SELECT t1.col1 as t1_col1, t2.col2 as t2_col2 FROM t1 last join t2 order by t2.col5 on t1.col1 = t2.col2 and t2.col5 >= t1.col5; @@ -162,4 +225,4 @@ cases: col1 as id, sum(col2) OVER w2 as w2_col2_sum FROM t1 WINDOW w2 AS (PARTITION BY col1 ORDER BY col5 ROWS_RANGE BETWEEN 1d OPEN PRECEDING AND CURRENT ROW) - ) as out1 ON out0.id = out1.id; \ No newline at end of file + ) as out1 ON out0.id = out1.id; diff --git a/cases/query/fail_query.yaml b/cases/query/fail_query.yaml index 4058525678c..415fa203127 100644 --- a/cases/query/fail_query.yaml +++ b/cases/query/fail_query.yaml @@ -49,3 +49,24 @@ cases: SELECT 100 + 1s; expect: success: false + - id: 3 + desc: unsupport join + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - name: t2 + columns: ["c2 int","c4 timestamp"] + indexs: ["index1:c2:c4"] + rows: + - [20,3000] + - [20,2000] + sql: | + select t1.c1 as id, t2.* from t1 right join t2 + on t1.c2 = t2.c2 + expect: + success: false + msg: unsupport join type RightJoin diff --git a/cases/query/left_join.yml b/cases/query/left_join.yml new file mode 100644 index 00000000000..87e1c387ea6 --- /dev/null +++ b/cases/query/left_join.yml @@ -0,0 +1,575 @@ +cases: + - id: 0 + desc: last join to a left join subquery + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - ["cc",40,1000] + - ["dd",50,1000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2000] + - ["bb",2000] + - ["cc",3000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",19,13,3000] + - ["aa",21,13,3000] + - ["bb",34,131,3000] + - ["bb",21,131,3000] + sql: | + select + t1.c1, + tx.c1 as c1l, + tx.c1r, + tx.c2r + from t1 last join + ( + select t2.c1 as c1, + t3.c1 as c1r, + t3.c2 as c2r + from t2 left join t3 + on t2.c1 = t3.c1 + ) tx + on t1.c1 = tx.c1 and t1.c2 > tx.c2r + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r)) + JOIN(type=LastJoin, condition=t1.c2 > tx.c2r, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r)) + JOIN(type=LeftJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r)) + REQUEST_JOIN(type=LastJoin, condition=t1.c2 > tx.c2r, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LeftJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: ["c1 string", "c1l string", "c1r string", "c2r int"] + data: | + aa, aa, aa, 19 + bb, bb, bb, 21 + cc, NULL, NULL, NULL + dd, NULL, NULL, NULL + - id: 1 + desc: last join to a left join subquery, request unsupport if left join not optimized + mode: request-unsupport + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - ["cc",40,1000] + - ["dd",50,1000] + - name: t2 + columns: ["c1 string","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",2000] + - ["bb",3000] + - ["cc",4000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c2:c4"] + rows: + - ["aa",19,13,3000] + - ["aa",21,13,4000] + - ["bb",34,131,3000] + - ["bb",21,131,4000] + sql: | + select + t1.c1, + tx.c1 as c1l, + tx.c1r, + tx.c2r + from t1 last join + ( + select t2.c1 as c1, + t3.c1 as c1r, + t3.c2 as c2r + from t2 left join t3 + on t2.c1 = t3.c1 + ) tx + on t1.c1 = tx.c1 and t1.c2 > tx.c2r + batch_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r)) + JOIN(type=LastJoin, condition=t1.c2 > tx.c2r, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(table=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r)) + JOIN(type=LeftJoin, condition=, left_keys=(t2.c1), right_keys=(t3.c1), index_keys=) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(table=t3) + expect: + order: c1 + columns: ["c1 string", "c1l string", "c1r string", "c2r int"] + data: | + aa, aa, aa, 19 + bb, bb, bb, 21 + cc, NULL, NULL, NULL + dd, NULL, NULL, NULL + - id: 2 + desc: last join to a left join subquery, index optimized with additional condition + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - ["cc",40,1000] + - ["dd",50,1000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa", 42, 2000] + - ["bb", 68, 3000] + - ["cc", 42, 4000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",19,13,3000] + - ["aa",21,13,4000] + - ["bb",34,131,3000] + - ["bb",21,131,4000] + sql: | + select + t1.c1, + tx.c1 as c1l, + tx.c1r, + tx.c2r + from t1 last join + ( + select t2.c1 as c1, + t3.c1 as c1r, + t3.c2 as c2r + from t2 left join t3 + on t2.c1 = t3.c1 and t2.c2 = 2 * t3.c2 + ) tx + on t1.c1 = tx.c1 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LeftJoin, condition=, left_keys=(t2.c2), right_keys=(2 * t3.c2), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LeftJoin, condition=, left_keys=(t2.c2), right_keys=(2 * t3.c2), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: ["c1 string", "c1l string", "c1r string", "c2r int"] + data: | + aa, aa, aa, 21 + bb, bb, bb, 34 + cc, cc, NULL, NULL + dd, NULL, NULL, NULL + - id: 3 + desc: last join to a left join subquery 2, index optimized with additional condition + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - ["cc",40,1000] + - ["dd",50,1000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa", 20, 2000] + - ["bb", 10, 3000] + - ["cc", 42, 4000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",19,13,3000] + - ["aa",21,13,4000] + - ["bb",34,131,3000] + - ["bb",21,131,4000] + sql: | + select + t1.c1, + tx.c1 as c1l, + tx.c1r, + tx.c2r + from t1 last join + ( + select t2.c1 as c1, + t3.c1 as c1r, + t3.c2 as c2r + from t2 left join t3 + on t2.c1 = t3.c1 and t2.c2 > t3.c2 + ) tx + on t1.c1 = tx.c1 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LeftJoin, condition=t2.c2 > t3.c2, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r)) + REQUEST_JOIN(type=LeftJoin, condition=t2.c2 > t3.c2, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: ["c1 string", "c1l string", "c1r string", "c2r int"] + data: | + aa, aa, aa, 19 + bb, bb, NULL, NULL + cc, cc, NULL, NULL + dd, NULL, NULL, NULL + - id: 4 + desc: last join to two left join + # there is no restriction for multiple left joins, including request mode, + # but it may not high performance like multiple last joins + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - ["cc",40,1000] + - ["dd",50,1000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa", 20, 2000] + - ["bb", 10, 3000] + - ["cc", 42, 4000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",19,13,3000] + - ["aa",21,8, 4000] + - ["bb",34,131,3000] + - ["bb",21,131,4000] + - ["cc",27,100,5000] + - name: t4 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",19,14,3000] + - ["aa",21,13,4000] + - ["bb",34,1,3000] + - ["bb",21,132,4000] + sql: | + select + t1.c1, + tx.c1 as c1l, + tx.c1r, + tx.c2r, + tx.c3x + from t1 last join + ( + select t2.c1 as c1, + t3.c1 as c1r, + t3.c2 as c2r, + t4.c3 as c3x + from t2 left outer join t3 + on t2.c1 = t3.c1 and t2.c2 > t3.c2 + left join t4 + on t2.c1 = t4.c1 and t3.c3 < t4.c3 + ) tx + on t1.c1 = tx.c1 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r, tx.c3x)) + REQUEST_JOIN(type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r, t4.c3 -> c3x)) + REQUEST_JOIN(type=LeftJoin, condition=t3.c3 < t4.c3, left_keys=(), right_keys=(), index_keys=(t2.c1)) + REQUEST_JOIN(type=LeftJoin, condition=t2.c2 > t3.c2, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, tx.c1 -> c1l, tx.c1r, tx.c2r, tx.c3x)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=, left_keys=(), right_keys=(), index_keys=(#4)) + SIMPLE_PROJECT(sources=(#4 -> t1.c1)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1, t3.c1 -> c1r, t3.c2 -> c2r, t4.c3 -> c3x)) + REQUEST_JOIN(type=LeftJoin, condition=t3.c3 < t4.c3, left_keys=(), right_keys=(), index_keys=(t2.c1)) + REQUEST_JOIN(type=LeftJoin, condition=t2.c2 > t3.c2, left_keys=(), right_keys=(), index_keys=(t2.c1)) + DATA_PROVIDER(type=Partition, table=t2, index=index1) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + DATA_PROVIDER(type=Partition, table=t4, index=index1) + expect: + order: c1 + columns: ["c1 string", "c1l string", "c1r string", "c2r int", "c3x bigint"] + data: | + aa, aa, aa, 19, 14 + bb, bb, NULL, NULL, NULL + cc, cc, cc, 27, NULL + dd, NULL, NULL, NULL, NULL + - id: 5 + desc: simple left join + mode: request-unsupport + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - name: t2 + columns: ["c2 int","c4 timestamp"] + indexs: ["index1:c2:c4"] + rows: + - [20,3000] + - [20,2000] + sql: | + select t1.c1 as id, t2.* from t1 left join t2 + on t1.c2 = t2.c2 + expect: + order: c1 + columns: ["id string", "c2 int","c4 timestamp"] + data: | + aa, 20, 3000 + aa, 20, 2000 + bb, NULL, NULL + - id: 6 + desc: lastjoin(leftjoin(filter, table)) + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - ["cc",40,1000] + - ["dd",50,1000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp"] + indexs: ["index1:c1:c4", "index2:c2:c4"] + rows: + - ["bb",20, 1000] + - ["aa",30, 2000] + - ["bb",30, 3000] + - ["cc",40, 4000] + - ["dd",50, 5000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",19,13,3000] + - ["bb",34,131,3000] + sql: | + select + t1.c1, + t1.c2, + tx.* + from t1 last join + ( + select t2.c1 as tx_0_c1, + t2.c2 as tx_0_c2, + t2.c4 as tx_0_c4, + t3.c2 as tx_1_c2, + t3.c3 as tx_1_c3 + from (select * from t2 where c1 != 'dd') t2 left join t3 + on t2.c1 = t3.c1 + ) tx + order by tx.tx_0_c4 + on t1.c2 = tx.tx_0_c2 + request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.tx_0_c1, tx.tx_0_c2, tx.tx_0_c4, tx.tx_1_c2, tx.tx_1_c3)) + REQUEST_JOIN(type=LastJoin, right_sort=(ASC), condition=, left_keys=(), right_keys=(), index_keys=(t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1 -> tx_0_c1, t2.c2 -> tx_0_c2, t2.c4 -> tx_0_c4, t3.c2 -> tx_1_c2, t3.c3 -> tx_1_c3)) + REQUEST_JOIN(type=LeftJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + RENAME(name=t2) + FILTER_BY(condition=c1 != dd, left_keys=, right_keys=, index_keys=) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: ["c1 string", "c2 int", "tx_0_c1 string", "tx_0_c2 int", "tx_0_c4 timestamp", "tx_1_c2 int", "tx_1_c3 int64"] + data: | + aa, 20, bb, 20, 1000, 34, 131 + bb, 30, bb, 30, 3000, 34, 131 + cc, 40, cc, 40, 4000, NULL, NULL + dd, 50, NULL, NULL, NULL, NULL, NULL + - id: 7 + desc: lastjoin(leftjoin(filter, filter)) + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - ["cc",40,1000] + - ["dd",50,1000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp"] + indexs: ["index1:c1:c4", "index2:c2:c4"] + rows: + - ["bb",20, 1000] + - ["aa",30, 2000] + - ["bb",30, 3000] + - ["cc",40, 4000] + - ["dd",50, 5000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",19,13,3000] + - ["bb",34,131,3000] + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.tx_0_c1, tx.tx_0_c2, tx.tx_0_c4, tx.tx_1_c2, tx.tx_1_c3)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, right_sort=(ASC), condition=, left_keys=(#5), right_keys=(#8), index_keys=) + SIMPLE_PROJECT(sources=(#5 -> t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1 -> tx_0_c1, t2.c2 -> tx_0_c2, t2.c4 -> tx_0_c4, t3.c2 -> tx_1_c2, t3.c3 -> tx_1_c3)) + REQUEST_JOIN(type=LeftJoin, condition=, left_keys=(), right_keys=(), index_keys=(t2.c1)) + RENAME(name=t2) + FILTER_BY(condition=, left_keys=(), right_keys=(), index_keys=(30)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + RENAME(name=t3) + FILTER_BY(condition=c2 > 20, left_keys=, right_keys=, index_keys=) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + sql: | + select + t1.c1, + t1.c2, + tx.* + from t1 last join + ( + select t2.c1 as tx_0_c1, + t2.c2 as tx_0_c2, + t2.c4 as tx_0_c4, + t3.c2 as tx_1_c2, + t3.c3 as tx_1_c3 + from (select * from t2 where c2 = 30) t2 left join (select * from t3 where c2 > 20) t3 + on t2.c1 = t3.c1 + ) tx + order by tx.tx_0_c4 + on t1.c2 = tx.tx_0_c2 + request_plan: | + expect: + order: c1 + columns: ["c1 string", "c2 int", "tx_0_c1 string", "tx_0_c2 int", "tx_0_c4 timestamp", "tx_1_c2 int", "tx_1_c3 int64"] + data: | + aa, 20, NULL, NULL, NULL, NULL, NULL + bb, 30, bb, 30, 3000, 34, 131 + cc, 40, NULL, NULL, NULL, NULL, NULL + dd, 50, NULL, NULL, NULL, NULL, NULL + - id: 8 + desc: lastjoin(leftjoin(filter, filter)) + inputs: + - name: t1 + columns: ["c1 string","c2 int","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",20,1000] + - ["bb",30,1000] + - ["cc",40,1000] + - name: t2 + columns: ["c1 string", "c2 int", "c4 timestamp"] + indexs: ["index1:c1:c4", "index2:c2:c4"] + rows: + - ["bb",20, 1000] + - ["aa",20, 2000] + - ["bb",30, 3000] + - ["cc",40, 4000] + - name: t3 + columns: ["c1 string","c2 int","c3 bigint","c4 timestamp"] + indexs: ["index1:c1:c4"] + rows: + - ["aa",19,13,3000] + - ["bb",34,131,3000] + sql: | + select + t1.c1, + t1.c2, + tx.* + from t1 last join + ( + select t2.c1 as tx_0_c1, + t2.c2 as tx_0_c2, + t2.c4 as tx_0_c4, + t3.c2 as tx_1_c2, + t3.c3 as tx_1_c3 + from (select * from t2 where c2 = 20) t2 left join (select * from t3 where c1 = 'bb') t3 + on t2.c1 = t3.c1 + ) tx + on t1.c2 = tx.tx_0_c2 and not isnull(tx.tx_1_c2) + cluster_request_plan: | + SIMPLE_PROJECT(sources=(t1.c1, t1.c2, tx.tx_0_c1, tx.tx_0_c2, tx.tx_0_c4, tx.tx_1_c2, tx.tx_1_c3)) + REQUEST_JOIN(type=kJoinTypeConcat) + DATA_PROVIDER(request=t1) + REQUEST_JOIN(OUTPUT_RIGHT_ONLY, type=LastJoin, condition=NOT isnull(#89), left_keys=(#5), right_keys=(#8), index_keys=) + SIMPLE_PROJECT(sources=(#5 -> t1.c2)) + DATA_PROVIDER(request=t1) + RENAME(name=tx) + SIMPLE_PROJECT(sources=(t2.c1 -> tx_0_c1, t2.c2 -> tx_0_c2, t2.c4 -> tx_0_c4, t3.c2 -> tx_1_c2, t3.c3 -> tx_1_c3)) + REQUEST_JOIN(type=LeftJoin, condition=, left_keys=(t2.c1), right_keys=(t3.c1), index_keys=) + RENAME(name=t2) + FILTER_BY(condition=, left_keys=(), right_keys=(), index_keys=(20)) + DATA_PROVIDER(type=Partition, table=t2, index=index2) + RENAME(name=t3) + FILTER_BY(condition=, left_keys=(), right_keys=(), index_keys=(bb)) + DATA_PROVIDER(type=Partition, table=t3, index=index1) + expect: + order: c1 + columns: ["c1 string", "c2 int", "tx_0_c1 string", "tx_0_c2 int", "tx_0_c4 timestamp", "tx_1_c2 int", "tx_1_c3 int64"] + data: | + aa, 20, bb, 20, 1000, 34, 131 + bb, 30, NULL, NULL, NULL, NULL, NULL + cc, 40, NULL, NULL, NULL, NULL, NULL diff --git a/hybridse/examples/toydb/src/storage/table_iterator.cc b/hybridse/examples/toydb/src/storage/table_iterator.cc index 45561cd52a1..8ea4a3e0349 100644 --- a/hybridse/examples/toydb/src/storage/table_iterator.cc +++ b/hybridse/examples/toydb/src/storage/table_iterator.cc @@ -62,7 +62,7 @@ WindowTableIterator::WindowTableIterator(Segment*** segments, uint32_t seg_cnt, seg_idx_(0), pk_it_(), table_(table) { - GoToStart(); + SeekToFirst(); } WindowTableIterator::~WindowTableIterator() {} @@ -80,7 +80,7 @@ void WindowTableIterator::Seek(const std::string& key) { pk_it_->Seek(pk); } -void WindowTableIterator::SeekToFirst() {} +void WindowTableIterator::SeekToFirst() { GoToStart(); } std::unique_ptr WindowTableIterator::GetValue() { if (!pk_it_) diff --git a/hybridse/examples/toydb/src/tablet/tablet_catalog.cc b/hybridse/examples/toydb/src/tablet/tablet_catalog.cc index 71c2f34f407..81764df9da6 100644 --- a/hybridse/examples/toydb/src/tablet/tablet_catalog.cc +++ b/hybridse/examples/toydb/src/tablet/tablet_catalog.cc @@ -19,7 +19,6 @@ #include #include #include -#include "codec/list_iterator_codec.h" #include "glog/logging.h" #include "storage/table_iterator.h" @@ -99,13 +98,6 @@ bool TabletTableHandler::Init() { return true; } -std::unique_ptr TabletTableHandler::GetIterator() { - std::unique_ptr it( - new storage::FullTableIterator(table_->GetSegments(), - table_->GetSegCnt(), table_)); - return std::move(it); -} - std::unique_ptr TabletTableHandler::GetWindowIterator( const std::string& idx_name) { auto iter = index_hint_.find(idx_name); diff --git a/hybridse/examples/toydb/src/tablet/tablet_catalog.h b/hybridse/examples/toydb/src/tablet/tablet_catalog.h index dd5bea22c51..9d2e8b907e5 100644 --- a/hybridse/examples/toydb/src/tablet/tablet_catalog.h +++ b/hybridse/examples/toydb/src/tablet/tablet_catalog.h @@ -21,7 +21,6 @@ #include #include #include -#include "base/spin_lock.h" #include "storage/table_impl.h" #include "vm/catalog.h" @@ -77,7 +76,7 @@ class TabletSegmentHandler : public TableHandler { std::string key_; }; -class TabletPartitionHandler +class TabletPartitionHandler final : public PartitionHandler, public std::enable_shared_from_this { public: @@ -89,6 +88,8 @@ class TabletPartitionHandler ~TabletPartitionHandler() {} + RowIterator* GetRawIterator() override { return table_handler_->GetRawIterator(); } + const OrderType GetOrderType() const override { return OrderType::kDescOrder; } const vm::Schema* GetSchema() override { return table_handler_->GetSchema(); } @@ -118,7 +119,7 @@ class TabletPartitionHandler vm::IndexHint index_hint_; }; -class TabletTableHandler +class TabletTableHandler final : public vm::TableHandler, public std::enable_shared_from_this { public: @@ -134,26 +135,23 @@ class TabletTableHandler bool Init(); - inline const vm::Schema* GetSchema() { return &schema_; } + const vm::Schema* GetSchema() override { return &schema_; } - inline const std::string& GetName() { return name_; } + const std::string& GetName() override { return name_; } - inline const std::string& GetDatabase() { return db_; } + const std::string& GetDatabase() override { return db_; } - inline const vm::Types& GetTypes() { return types_; } + const vm::Types& GetTypes() override { return types_; } - inline const vm::IndexHint& GetIndex() { return index_hint_; } + const vm::IndexHint& GetIndex() override { return index_hint_; } const Row Get(int32_t pos); - inline std::shared_ptr GetTable() { return table_; } - std::unique_ptr GetIterator(); + std::shared_ptr GetTable() { return table_; } RowIterator* GetRawIterator() override; - std::unique_ptr GetWindowIterator( - const std::string& idx_name); + std::unique_ptr GetWindowIterator(const std::string& idx_name) override; - virtual std::shared_ptr GetPartition( - const std::string& index_name) { + std::shared_ptr GetPartition(const std::string& index_name) override { if (index_hint_.find(index_name) == index_hint_.cend()) { LOG(WARNING) << "fail to get partition for tablet table handler, index name " @@ -166,12 +164,12 @@ class TabletTableHandler const std::string GetHandlerTypeName() override { return "TabletTableHandler"; } - virtual std::shared_ptr GetTablet( - const std::string& index_name, const std::string& pk) { + std::shared_ptr GetTablet(const std::string& index_name, + const std::string& pk) override { return tablet_; } - virtual std::shared_ptr GetTablet( - const std::string& index_name, const std::vector& pks) { + std::shared_ptr GetTablet(const std::string& index_name, + const std::vector& pks) override { return tablet_; } diff --git a/hybridse/include/codec/fe_row_codec.h b/hybridse/include/codec/fe_row_codec.h index 1e0e5b1badc..0e0b153f5a5 100644 --- a/hybridse/include/codec/fe_row_codec.h +++ b/hybridse/include/codec/fe_row_codec.h @@ -157,6 +157,9 @@ class RowView { const Schema* GetSchema() const { return &schema_; } inline bool IsNULL(const int8_t* row, uint32_t idx) const { + if (row == nullptr) { + return true; + } const int8_t* ptr = row + HEADER_LENGTH + (idx >> 3); return *(reinterpret_cast(ptr)) & (1 << (idx & 0x07)); } diff --git a/hybridse/include/codec/row_list.h b/hybridse/include/codec/row_list.h index cfc83fae6a1..f601b207b9c 100644 --- a/hybridse/include/codec/row_list.h +++ b/hybridse/include/codec/row_list.h @@ -65,7 +65,13 @@ class ListV { ListV() {} virtual ~ListV() {} /// \brief Return the const iterator - virtual std::unique_ptr> GetIterator() = 0; + virtual std::unique_ptr> GetIterator() { + auto raw = GetRawIterator(); + if (raw == nullptr) { + return {}; + } + return std::unique_ptr>(raw); + } /// \brief Return the const iterator raw pointer virtual ConstIterator *GetRawIterator() = 0; diff --git a/hybridse/include/node/node_enum.h b/hybridse/include/node/node_enum.h index b903eaafdd5..fc1dde18b07 100644 --- a/hybridse/include/node/node_enum.h +++ b/hybridse/include/node/node_enum.h @@ -252,7 +252,7 @@ enum JoinType { kJoinTypeRight, kJoinTypeInner, kJoinTypeConcat, - kJoinTypeComma + kJoinTypeCross, // AKA commma join }; enum UnionType { kUnionTypeDistinct, kUnionTypeAll }; diff --git a/hybridse/include/vm/catalog.h b/hybridse/include/vm/catalog.h index 70a422f8924..4bd007645bd 100644 --- a/hybridse/include/vm/catalog.h +++ b/hybridse/include/vm/catalog.h @@ -225,8 +225,7 @@ class TableHandler : public DataHandler { /// Return WindowIterator /// so that user can use it to iterate datasets segment by segment. - virtual std::unique_ptr GetWindowIterator( - const std::string& idx_name) = 0; + virtual std::unique_ptr GetWindowIterator(const std::string& idx_name) { return nullptr; } /// Return the HandlerType of the dataset. /// Return HandlerType::kTableHandler by default @@ -255,8 +254,7 @@ class TableHandler : public DataHandler { /// Return Tablet binding to specify index and keys. /// Return `null` by default. - virtual std::shared_ptr GetTablet( - const std::string& index_name, const std::vector& pks) { + virtual std::shared_ptr GetTablet(const std::string& index_name, const std::vector& pks) { return std::shared_ptr(); } }; @@ -287,27 +285,19 @@ class ErrorTableHandler : public TableHandler { /// Return empty column Types. const Types& GetTypes() override { return types_; } /// Return empty table Schema. - inline const Schema* GetSchema() override { return schema_; } + const Schema* GetSchema() override { return schema_; } /// Return empty table name - inline const std::string& GetName() override { return table_name_; } + const std::string& GetName() override { return table_name_; } /// Return empty indexn information - inline const IndexHint& GetIndex() override { return index_hint_; } + const IndexHint& GetIndex() override { return index_hint_; } /// Return name of database - inline const std::string& GetDatabase() override { return db_; } + const std::string& GetDatabase() override { return db_; } /// Return null iterator - std::unique_ptr GetIterator() { - return std::unique_ptr(); - } - /// Return null iterator - RowIterator* GetRawIterator() { return nullptr; } - /// Return null window iterator - std::unique_ptr GetWindowIterator( - const std::string& idx_name) { - return std::unique_ptr(); - } + RowIterator* GetRawIterator() override { return nullptr; } + /// Return empty row - virtual Row At(uint64_t pos) { return Row(); } + Row At(uint64_t pos) override { return Row(); } /// Return 0 const uint64_t GetCount() override { return 0; } @@ -318,7 +308,7 @@ class ErrorTableHandler : public TableHandler { } /// Return status - virtual base::Status GetStatus() { return status_; } + base::Status GetStatus() override { return status_; } protected: base::Status status_; @@ -341,16 +331,11 @@ class PartitionHandler : public TableHandler { PartitionHandler() : TableHandler() {} ~PartitionHandler() {} - /// Return the iterator of row iterator. - /// Return null by default - virtual std::unique_ptr GetIterator() { - return std::unique_ptr(); - } - /// Return the iterator of row iterator - /// Return null by default - RowIterator* GetRawIterator() { return nullptr; } - virtual std::unique_ptr GetWindowIterator( - const std::string& idx_name) { + // Return the iterator of row iterator + // Return null by default + RowIterator* GetRawIterator() override { return nullptr; } + + std::unique_ptr GetWindowIterator(const std::string& idx_name) override { return std::unique_ptr(); } @@ -362,18 +347,15 @@ class PartitionHandler : public TableHandler { const HandlerType GetHandlerType() override { return kPartitionHandler; } /// Return empty row, cause partition dataset does not support At operation. - virtual Row At(uint64_t pos) { return Row(); } + // virtual Row At(uint64_t pos) { return Row(); } /// Return Return table handler of specific segment binding to given key. /// Return `null` by default. - virtual std::shared_ptr GetSegment(const std::string& key) { - return std::shared_ptr(); - } + virtual std::shared_ptr GetSegment(const std::string& key) = 0; /// Return a sequence of table handles of specify segments binding to given /// keys set. - virtual std::vector> GetSegments( - const std::vector& keys) { + virtual std::vector> GetSegments(const std::vector& keys) { std::vector> segments; for (auto key : keys) { segments.push_back(GetSegment(key)); @@ -384,9 +366,6 @@ class PartitionHandler : public TableHandler { const std::string GetHandlerTypeName() override { return "PartitionHandler"; } - /// Return order type of the dataset, - /// and return kNoneOrder by default. - const OrderType GetOrderType() const { return kNoneOrder; } }; /// \brief A wrapper of table handler which is used as a asynchronous row diff --git a/hybridse/include/vm/mem_catalog.h b/hybridse/include/vm/mem_catalog.h index dffb17a8af1..6237edd1d43 100644 --- a/hybridse/include/vm/mem_catalog.h +++ b/hybridse/include/vm/mem_catalog.h @@ -64,11 +64,11 @@ class MemTimeTableIterator : public RowIterator { MemTimeTableIterator(const MemTimeTable* table, const vm::Schema* schema, int32_t start, int32_t end); ~MemTimeTableIterator(); - void Seek(const uint64_t& ts); - void SeekToFirst(); - const uint64_t& GetKey() const; - void Next(); - bool Valid() const; + void Seek(const uint64_t& ts) override; + void SeekToFirst() override; + const uint64_t& GetKey() const override; + void Next() override; + bool Valid() const override; const Row& GetValue() override; bool IsSeekable() const override; @@ -86,12 +86,12 @@ class MemTableIterator : public RowIterator { MemTableIterator(const MemTable* table, const vm::Schema* schema, int32_t start, int32_t end); ~MemTableIterator(); - void Seek(const uint64_t& ts); - void SeekToFirst(); - const uint64_t& GetKey() const; - const Row& GetValue(); - void Next(); - bool Valid() const; + void Seek(const uint64_t& ts) override; + void SeekToFirst() override; + const uint64_t& GetKey() const override; + const Row& GetValue() override; + void Next() override; + bool Valid() const override; bool IsSeekable() const override; private: @@ -113,7 +113,6 @@ class MemWindowIterator : public WindowIterator { void SeekToFirst(); void Next(); bool Valid(); - std::unique_ptr GetValue(); RowIterator* GetRawValue(); const Row GetKey(); @@ -155,24 +154,21 @@ class MemTableHandler : public TableHandler { ~MemTableHandler() override; const Types& GetTypes() override { return types_; } - inline const Schema* GetSchema() { return schema_; } - inline const std::string& GetName() { return table_name_; } - inline const IndexHint& GetIndex() { return index_hint_; } - inline const std::string& GetDatabase() { return db_; } + const Schema* GetSchema() override { return schema_; } + const std::string& GetName() override { return table_name_; } + const IndexHint& GetIndex() override { return index_hint_; } + const std::string& GetDatabase() override { return db_; } - std::unique_ptr GetIterator() override; RowIterator* GetRawIterator() override; - std::unique_ptr GetWindowIterator( - const std::string& idx_name); void AddRow(const Row& row); void Reverse(); - virtual const uint64_t GetCount() { return table_.size(); } - virtual Row At(uint64_t pos) { + const uint64_t GetCount() override { return table_.size(); } + Row At(uint64_t pos) override { return pos < table_.size() ? table_.at(pos) : Row(); } - const OrderType GetOrderType() const { return order_type_; } + const OrderType GetOrderType() const override { return order_type_; } void SetOrderType(const OrderType order_type) { order_type_ = order_type; } const std::string GetHandlerTypeName() override { return "MemTableHandler"; @@ -198,14 +194,11 @@ class MemTimeTableHandler : public TableHandler { const Schema* schema); const Types& GetTypes() override; ~MemTimeTableHandler() override; - inline const Schema* GetSchema() { return schema_; } - inline const std::string& GetName() { return table_name_; } - inline const IndexHint& GetIndex() { return index_hint_; } - std::unique_ptr GetIterator(); - RowIterator* GetRawIterator(); - inline const std::string& GetDatabase() { return db_; } - std::unique_ptr GetWindowIterator( - const std::string& idx_name); + const Schema* GetSchema() override { return schema_; } + const std::string& GetName() override { return table_name_; } + const IndexHint& GetIndex() override { return index_hint_; } + RowIterator* GetRawIterator() override; + const std::string& GetDatabase() override { return db_; } void AddRow(const uint64_t key, const Row& v); void AddFrontRow(const uint64_t key, const Row& v); void PopBackRow(); @@ -218,12 +211,12 @@ class MemTimeTableHandler : public TableHandler { } void Sort(const bool is_asc); void Reverse(); - virtual const uint64_t GetCount() { return table_.size(); } - virtual Row At(uint64_t pos) { + const uint64_t GetCount() override { return table_.size(); } + Row At(uint64_t pos) override { return pos < table_.size() ? table_.at(pos).second : Row(); } void SetOrderType(const OrderType order_type) { order_type_ = order_type; } - const OrderType GetOrderType() const { return order_type_; } + const OrderType GetOrderType() const override { return order_type_; } const std::string GetHandlerTypeName() override { return "MemTimeTableHandler"; } @@ -252,21 +245,11 @@ class Window : public MemTimeTableHandler { return std::make_unique(&table_, schema_); } - RowIterator* GetRawIterator() { - return new vm::MemTimeTableIterator(&table_, schema_); - } + RowIterator* GetRawIterator() override { return new vm::MemTimeTableIterator(&table_, schema_); } virtual bool BufferData(uint64_t key, const Row& row) = 0; virtual void PopBackData() { PopBackRow(); } virtual void PopFrontData() = 0; - virtual const uint64_t GetCount() { return table_.size(); } - virtual Row At(uint64_t pos) { - if (pos >= table_.size()) { - return Row(); - } else { - return table_[pos].second; - } - } const std::string GetHandlerTypeName() override { return "Window"; } bool instance_not_in_window() const { return instance_not_in_window_; } @@ -320,7 +303,7 @@ class WindowRange { return WindowRange(Window::kFrameRowsMergeRowsRange, start_offset, 0, rows_preceding, max_size); } - inline const WindowPositionStatus GetWindowPositionStatus( + const WindowPositionStatus GetWindowPositionStatus( bool out_of_rows, bool before_window, bool exceed_window) const { switch (frame_type_) { case Window::WindowFrameType::kFrameRows: @@ -529,7 +512,7 @@ class CurrentHistoryWindow : public HistoryWindow { void PopFrontData() override { PopFrontRow(); } - bool BufferData(uint64_t key, const Row& row) { + bool BufferData(uint64_t key, const Row& row) override { if (!table_.empty() && GetFrontRow().first > key) { DLOG(WARNING) << "Fail BufferData: buffer key less than latest key"; return false; @@ -558,34 +541,25 @@ class MemSegmentHandler : public TableHandler { virtual ~MemSegmentHandler() {} - inline const vm::Schema* GetSchema() { + const vm::Schema* GetSchema() override { return partition_hander_->GetSchema(); } - inline const std::string& GetName() { return partition_hander_->GetName(); } + const std::string& GetName() override { return partition_hander_->GetName(); } - inline const std::string& GetDatabase() { + const std::string& GetDatabase() override { return partition_hander_->GetDatabase(); } - inline const vm::Types& GetTypes() { return partition_hander_->GetTypes(); } + const vm::Types& GetTypes() override { return partition_hander_->GetTypes(); } - inline const vm::IndexHint& GetIndex() { + const vm::IndexHint& GetIndex() override { return partition_hander_->GetIndex(); } - const OrderType GetOrderType() const { + const OrderType GetOrderType() const override { return partition_hander_->GetOrderType(); } - std::unique_ptr GetIterator() { - auto iter = partition_hander_->GetWindowIterator(); - if (iter) { - iter->Seek(key_); - return iter->Valid() ? iter->GetValue() - : std::unique_ptr(); - } - return std::unique_ptr(); - } RowIterator* GetRawIterator() override { auto iter = partition_hander_->GetWindowIterator(); if (iter) { @@ -594,12 +568,11 @@ class MemSegmentHandler : public TableHandler { } return nullptr; } - std::unique_ptr GetWindowIterator( - const std::string& idx_name) { + std::unique_ptr GetWindowIterator(const std::string& idx_name) override { LOG(WARNING) << "SegmentHandler can't support window iterator"; return std::unique_ptr(); } - virtual const uint64_t GetCount() { + const uint64_t GetCount() override { auto iter = GetIterator(); if (!iter) { return 0; @@ -632,9 +605,7 @@ class MemSegmentHandler : public TableHandler { std::string key_; }; -class MemPartitionHandler - : public PartitionHandler, - public std::enable_shared_from_this { +class MemPartitionHandler : public PartitionHandler, public std::enable_shared_from_this { public: MemPartitionHandler(); explicit MemPartitionHandler(const Schema* schema); @@ -647,18 +618,19 @@ class MemPartitionHandler const Schema* GetSchema() override; const std::string& GetName() override; const std::string& GetDatabase() override; - virtual std::unique_ptr GetWindowIterator(); + RowIterator* GetRawIterator() override { return nullptr; } + std::unique_ptr GetWindowIterator() override; bool AddRow(const std::string& key, uint64_t ts, const Row& row); void Sort(const bool is_asc); void Reverse(); void Print(); - virtual const uint64_t GetCount() { return partitions_.size(); } - virtual std::shared_ptr GetSegment(const std::string& key) { + const uint64_t GetCount() override { return partitions_.size(); } + std::shared_ptr GetSegment(const std::string& key) override { return std::shared_ptr( new MemSegmentHandler(shared_from_this(), key)); } void SetOrderType(const OrderType order_type) { order_type_ = order_type; } - const OrderType GetOrderType() const { return order_type_; } + const OrderType GetOrderType() const override { return order_type_; } const std::string GetHandlerTypeName() override { return "MemPartitionHandler"; } @@ -691,12 +663,6 @@ class ConcatTableHandler : public MemTimeTableHandler { status_ = SyncValue(); return MemTimeTableHandler::At(pos); } - std::unique_ptr GetIterator() override { - if (status_.isRunning()) { - status_ = SyncValue(); - } - return MemTimeTableHandler::GetIterator(); - } RowIterator* GetRawIterator() override { if (status_.isRunning()) { status_ = SyncValue(); @@ -756,11 +722,11 @@ class MemCatalog : public Catalog { bool Init(); - std::shared_ptr GetDatabase(const std::string& db) { + std::shared_ptr GetDatabase(const std::string& db) override { return dbs_[db]; } std::shared_ptr GetTable(const std::string& db, - const std::string& table_name) { + const std::string& table_name) override { return tables_[db][table_name]; } bool IndexSupport() override { return true; } @@ -782,17 +748,11 @@ class RequestUnionTableHandler : public TableHandler { : request_ts_(request_ts), request_row_(request_row), window_(window) {} ~RequestUnionTableHandler() {} - std::unique_ptr GetIterator() override { - return std::unique_ptr(GetRawIterator()); - } RowIterator* GetRawIterator() override; const Types& GetTypes() override { return window_->GetTypes(); } const IndexHint& GetIndex() override { return window_->GetIndex(); } - std::unique_ptr GetWindowIterator(const std::string&) { - return nullptr; - } - const OrderType GetOrderType() const { return window_->GetOrderType(); } + const OrderType GetOrderType() const override { return window_->GetOrderType(); } const Schema* GetSchema() override { return window_->GetSchema(); } const std::string& GetName() override { return window_->GetName(); } const std::string& GetDatabase() override { return window_->GetDatabase(); } diff --git a/hybridse/include/vm/physical_op.h b/hybridse/include/vm/physical_op.h index 0701bdda3a6..dd51c73bfd1 100644 --- a/hybridse/include/vm/physical_op.h +++ b/hybridse/include/vm/physical_op.h @@ -731,6 +731,7 @@ class PhysicalConstProjectNode : public PhysicalOpNode { public: explicit PhysicalConstProjectNode(const ColumnProjects &project) : PhysicalOpNode(kPhysicalOpConstProject, true), project_(project) { + output_type_ = kSchemaTypeRow; fn_infos_.push_back(&project_.fn_info()); } virtual ~PhysicalConstProjectNode() {} @@ -1183,23 +1184,25 @@ class PhysicalWindowAggrerationNode : public PhysicalProjectNode { class PhysicalJoinNode : public PhysicalBinaryNode { public: + static constexpr PhysicalOpType kConcreteNodeKind = kPhysicalOpJoin; + PhysicalJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, const node::JoinType join_type) - : PhysicalBinaryNode(left, right, kPhysicalOpJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join_type), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); } PhysicalJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, const node::JoinType join_type, const node::OrderByNode *orders, const node::ExprNode *condition) - : PhysicalBinaryNode(left, right, kPhysicalOpJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join_type, orders, condition), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } @@ -1208,11 +1211,11 @@ class PhysicalJoinNode : public PhysicalBinaryNode { const node::ExprNode *condition, const node::ExprListNode *left_keys, const node::ExprListNode *right_keys) - : PhysicalBinaryNode(left, right, kPhysicalOpJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join_type, condition, left_keys, right_keys), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } @@ -1222,31 +1225,31 @@ class PhysicalJoinNode : public PhysicalBinaryNode { const node::ExprNode *condition, const node::ExprListNode *left_keys, const node::ExprListNode *right_keys) - : PhysicalBinaryNode(left, right, kPhysicalOpJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join_type, orders, condition, left_keys, right_keys), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } PhysicalJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, const Join &join) - : PhysicalBinaryNode(left, right, kPhysicalOpJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } PhysicalJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, const Join &join, const bool output_right_only) - : PhysicalBinaryNode(left, right, kPhysicalOpJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join), joined_schemas_ctx_(this), output_right_only_(output_right_only) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } @@ -1275,37 +1278,59 @@ class PhysicalJoinNode : public PhysicalBinaryNode { Join join_; SchemasContext joined_schemas_ctx_; const bool output_right_only_; + + private: + void InitOuptput() { + switch (join_.join_type_) { + case node::kJoinTypeLast: + case node::kJoinTypeConcat: { + output_type_ = GetProducer(0)->GetOutputType(); + break; + } + default: { + // standard SQL JOINs, always treat as a table output + if (GetProducer(0)->GetOutputType() == kSchemaTypeGroup) { + output_type_ = kSchemaTypeGroup; + } else { + output_type_ = kSchemaTypeTable; + } + break; + } + } + } }; class PhysicalRequestJoinNode : public PhysicalBinaryNode { public: + static constexpr PhysicalOpType kConcreteNodeKind = kPhysicalOpRequestJoin; + PhysicalRequestJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, const node::JoinType join_type) - : PhysicalBinaryNode(left, right, kPhysicalOpRequestJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join_type), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } PhysicalRequestJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, const node::JoinType join_type, const node::OrderByNode *orders, const node::ExprNode *condition) - : PhysicalBinaryNode(left, right, kPhysicalOpRequestJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join_type, orders, condition), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } PhysicalRequestJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, const Join &join, const bool output_right_only) - : PhysicalBinaryNode(left, right, kPhysicalOpRequestJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join), joined_schemas_ctx_(this), output_right_only_(output_right_only) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } @@ -1315,11 +1340,11 @@ class PhysicalRequestJoinNode : public PhysicalBinaryNode { const node::ExprNode *condition, const node::ExprListNode *left_keys, const node::ExprListNode *right_keys) - : PhysicalBinaryNode(left, right, kPhysicalOpRequestJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join_type, condition, left_keys, right_keys), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } PhysicalRequestJoinNode(PhysicalOpNode *left, PhysicalOpNode *right, @@ -1328,11 +1353,11 @@ class PhysicalRequestJoinNode : public PhysicalBinaryNode { const node::ExprNode *condition, const node::ExprListNode *left_keys, const node::ExprListNode *right_keys) - : PhysicalBinaryNode(left, right, kPhysicalOpRequestJoin, false), + : PhysicalBinaryNode(left, right, kConcreteNodeKind, false), join_(join_type, orders, condition, left_keys, right_keys), joined_schemas_ctx_(this), output_right_only_(false) { - output_type_ = left->GetOutputType(); + InitOuptput(); RegisterFunctionInfo(); } @@ -1363,6 +1388,26 @@ class PhysicalRequestJoinNode : public PhysicalBinaryNode { Join join_; SchemasContext joined_schemas_ctx_; const bool output_right_only_; + + private: + void InitOuptput() { + switch (join_.join_type_) { + case node::kJoinTypeLast: + case node::kJoinTypeConcat: { + output_type_ = GetProducer(0)->GetOutputType(); + break; + } + default: { + // standard SQL JOINs, always treat as a table output + if (GetProducer(0)->GetOutputType() == kSchemaTypeGroup) { + output_type_ = kSchemaTypeGroup; + } else { + output_type_ = kSchemaTypeTable; + } + break; + } + } + } }; class PhysicalUnionNode : public PhysicalBinaryNode { @@ -1633,14 +1678,22 @@ class PhysicalFilterNode : public PhysicalUnaryNode { public: PhysicalFilterNode(PhysicalOpNode *node, const node::ExprNode *condition) : PhysicalUnaryNode(node, kPhysicalOpFilter, true), filter_(condition) { - output_type_ = node->GetOutputType(); + if (node->GetOutputType() == kSchemaTypeGroup && filter_.index_key_.ValidKey()) { + output_type_ = kSchemaTypeTable; + } else { + output_type_ = node->GetOutputType(); + } fn_infos_.push_back(&filter_.condition_.fn_info()); fn_infos_.push_back(&filter_.index_key_.fn_info()); } PhysicalFilterNode(PhysicalOpNode *node, Filter filter) : PhysicalUnaryNode(node, kPhysicalOpFilter, true), filter_(filter) { - output_type_ = node->GetOutputType(); + if (node->GetOutputType() == kSchemaTypeGroup && filter_.index_key_.ValidKey()) { + output_type_ = kSchemaTypeTable; + } else { + output_type_ = node->GetOutputType(); + } fn_infos_.push_back(&filter_.condition_.fn_info()); fn_infos_.push_back(&filter_.index_key_.fn_info()); diff --git a/hybridse/include/vm/simple_catalog.h b/hybridse/include/vm/simple_catalog.h index 1e1cd78a2f6..fd7c2f3b952 100644 --- a/hybridse/include/vm/simple_catalog.h +++ b/hybridse/include/vm/simple_catalog.h @@ -22,7 +22,6 @@ #include #include -#include "glog/logging.h" #include "proto/fe_type.pb.h" #include "vm/catalog.h" #include "vm/mem_catalog.h" diff --git a/hybridse/src/base/fe_slice.cc b/hybridse/src/base/fe_slice.cc index 9f41c6016ca..c2ca3560741 100644 --- a/hybridse/src/base/fe_slice.cc +++ b/hybridse/src/base/fe_slice.cc @@ -25,7 +25,7 @@ void RefCountedSlice::Release() { if (this->ref_cnt_ != nullptr) { auto& cnt = *this->ref_cnt_; cnt -= 1; - if (cnt == 0) { + if (cnt == 0 && buf() != nullptr) { // memset in case the buf is still used after free memset(buf(), 0, size()); free(buf()); diff --git a/hybridse/src/passes/physical/batch_request_optimize_test.cc b/hybridse/src/passes/physical/batch_request_optimize_test.cc index e53b7c377e2..48259b68ed4 100644 --- a/hybridse/src/passes/physical/batch_request_optimize_test.cc +++ b/hybridse/src/passes/physical/batch_request_optimize_test.cc @@ -54,6 +54,9 @@ INSTANTIATE_TEST_SUITE_P( INSTANTIATE_TEST_SUITE_P( BatchRequestLastJoinQuery, BatchRequestOptimizeTest, testing::ValuesIn(sqlcase::InitCases("cases/query/last_join_query.yaml"))); +INSTANTIATE_TEST_SUITE_P( + BatchRequestLeftJoin, BatchRequestOptimizeTest, + testing::ValuesIn(sqlcase::InitCases("cases/query/left_join.yml"))); INSTANTIATE_TEST_SUITE_P( BatchRequestLastJoinWindowQuery, BatchRequestOptimizeTest, testing::ValuesIn(sqlcase::InitCases("cases/query/last_join_window_query.yaml"))); diff --git a/hybridse/src/planv2/ast_node_converter.cc b/hybridse/src/planv2/ast_node_converter.cc index affb85f91bc..f2fa6fad4e2 100644 --- a/hybridse/src/planv2/ast_node_converter.cc +++ b/hybridse/src/planv2/ast_node_converter.cc @@ -1113,13 +1113,13 @@ base::Status ConvertTableExpressionNode(const zetasql::ASTTableExpression* root, node::TableRefNode* right = nullptr; node::OrderByNode* order_by = nullptr; node::ExprNode* condition = nullptr; - node::JoinType join_type = node::JoinType::kJoinTypeInner; CHECK_STATUS(ConvertTableExpressionNode(join->lhs(), node_manager, &left)) CHECK_STATUS(ConvertTableExpressionNode(join->rhs(), node_manager, &right)) CHECK_STATUS(ConvertOrderBy(join->order_by(), node_manager, &order_by)) if (nullptr != join->on_clause()) { CHECK_STATUS(ConvertExprNode(join->on_clause()->expression(), node_manager, &condition)) } + node::JoinType join_type = node::JoinType::kJoinTypeInner; switch (join->join_type()) { case zetasql::ASTJoin::JoinType::FULL: { join_type = node::JoinType::kJoinTypeFull; @@ -1137,12 +1137,14 @@ base::Status ConvertTableExpressionNode(const zetasql::ASTTableExpression* root, join_type = node::JoinType::kJoinTypeLast; break; } - case zetasql::ASTJoin::JoinType::INNER: { + case zetasql::ASTJoin::JoinType::INNER: + case zetasql::ASTJoin::JoinType::DEFAULT_JOIN_TYPE: { join_type = node::JoinType::kJoinTypeInner; break; } - case zetasql::ASTJoin::JoinType::COMMA: { - join_type = node::JoinType::kJoinTypeComma; + case zetasql::ASTJoin::JoinType::COMMA: + case zetasql::ASTJoin::JoinType::CROSS: { + join_type = node::JoinType::kJoinTypeCross; break; } default: { @@ -1290,6 +1292,7 @@ base::Status ConvertQueryExpr(const zetasql::ASTQueryExpression* query_expressio if (nullptr != select_query->from_clause()) { CHECK_STATUS(ConvertTableExpressionNode(select_query->from_clause()->table_expression(), node_manager, &table_ref_node)) + // TODO(.): dont mark table ref as a list, it never happens if (nullptr != table_ref_node) { tableref_list_ptr = node_manager->MakeNodeList(); tableref_list_ptr->PushBack(table_ref_node); diff --git a/hybridse/src/testing/engine_test_base.cc b/hybridse/src/testing/engine_test_base.cc index 9a0ad6fdd39..4992b6b5018 100644 --- a/hybridse/src/testing/engine_test_base.cc +++ b/hybridse/src/testing/engine_test_base.cc @@ -533,6 +533,8 @@ INSTANTIATE_TEST_SUITE_P(EngineExtreamQuery, EngineTest, INSTANTIATE_TEST_SUITE_P(EngineLastJoinQuery, EngineTest, testing::ValuesIn(sqlcase::InitCases("cases/query/last_join_query.yaml"))); +INSTANTIATE_TEST_SUITE_P(EngineLeftJoin, EngineTest, + testing::ValuesIn(sqlcase::InitCases("cases/query/left_join.yml"))); INSTANTIATE_TEST_SUITE_P(EngineLastJoinWindowQuery, EngineTest, testing::ValuesIn(sqlcase::InitCases("cases/query/last_join_window_query.yaml"))); diff --git a/hybridse/src/vm/catalog_wrapper.cc b/hybridse/src/vm/catalog_wrapper.cc index b10c6f1c55b..fbdd337e869 100644 --- a/hybridse/src/vm/catalog_wrapper.cc +++ b/hybridse/src/vm/catalog_wrapper.cc @@ -28,7 +28,7 @@ std::shared_ptr PartitionProjectWrapper::GetSegment( new TableProjectWrapper(segment, parameter_, fun_)); } } -base::ConstIterator* PartitionProjectWrapper::GetRawIterator() { +codec::RowIterator* PartitionProjectWrapper::GetRawIterator() { auto iter = partition_handler_->GetIterator(); if (!iter) { return nullptr; @@ -47,7 +47,7 @@ std::shared_ptr PartitionFilterWrapper::GetSegment( new TableFilterWrapper(segment, parameter_, fun_)); } } -base::ConstIterator* PartitionFilterWrapper::GetRawIterator() { +codec::RowIterator* PartitionFilterWrapper::GetRawIterator() { auto iter = partition_handler_->GetIterator(); if (!iter) { return nullptr; @@ -76,10 +76,6 @@ std::shared_ptr TableFilterWrapper::GetPartition( } } -LazyLastJoinIterator::LazyLastJoinIterator(std::unique_ptr&& left, std::shared_ptr right, - const Row& param, std::shared_ptr join) - : left_it_(std::move(left)), right_(right), parameter_(param), join_(join) {} - void LazyLastJoinIterator::Seek(const uint64_t& key) { left_it_->Seek(key); } void LazyLastJoinIterator::SeekToFirst() { left_it_->SeekToFirst(); } @@ -90,49 +86,36 @@ void LazyLastJoinIterator::Next() { left_it_->Next(); } bool LazyLastJoinIterator::Valid() const { return left_it_ && left_it_->Valid(); } -LazyLastJoinTableHandler::LazyLastJoinTableHandler(std::shared_ptr left, - std::shared_ptr right, const Row& param, +LazyJoinPartitionHandler::LazyJoinPartitionHandler(std::shared_ptr left, + std::shared_ptr right, const Row& param, std::shared_ptr join) : left_(left), right_(right), parameter_(param), join_(join) {} -LazyLastJoinPartitionHandler::LazyLastJoinPartitionHandler(std::shared_ptr left, - std::shared_ptr right, const Row& param, - std::shared_ptr join) - : left_(left), right_(right), parameter_(param), join_(join) {} - -std::shared_ptr LazyLastJoinPartitionHandler::GetSegment(const std::string& key) { +std::shared_ptr LazyJoinPartitionHandler::GetSegment(const std::string& key) { auto left_seg = left_->GetSegment(key); - return std::shared_ptr(new LazyLastJoinTableHandler(left_seg, right_, parameter_, join_)); + return std::shared_ptr(new LazyJoinTableHandler(left_seg, right_, parameter_, join_)); } -std::shared_ptr LazyLastJoinTableHandler::GetPartition(const std::string& index_name) { +std::shared_ptr LazyJoinTableHandler::GetPartition(const std::string& index_name) { return std::shared_ptr( - new LazyLastJoinPartitionHandler(left_->GetPartition(index_name), right_, parameter_, join_)); + new LazyJoinPartitionHandler(left_->GetPartition(index_name), right_, parameter_, join_)); } -std::unique_ptr LazyLastJoinTableHandler::GetIterator() { - auto iter = left_->GetIterator(); - if (!iter) { - return std::unique_ptr(); - } - - return std::unique_ptr(new LazyLastJoinIterator(std::move(iter), right_, parameter_, join_)); -} -std::unique_ptr LazyLastJoinPartitionHandler::GetIterator() { +codec::RowIterator* LazyJoinPartitionHandler::GetRawIterator() { auto iter = left_->GetIterator(); if (!iter) { - return std::unique_ptr(); + return nullptr; } - return std::unique_ptr(new LazyLastJoinIterator(std::move(iter), right_, parameter_, join_)); + return new LazyLastJoinIterator(std::move(iter), right_, parameter_, join_); } -std::unique_ptr LazyLastJoinPartitionHandler::GetWindowIterator() { +std::unique_ptr LazyJoinPartitionHandler::GetWindowIterator() { auto wi = left_->GetWindowIterator(); if (wi == nullptr) { return std::unique_ptr(); } - return std::unique_ptr(new LazyLastJoinWindowIterator(std::move(wi), right_, parameter_, join_)); + return std::unique_ptr(new LazyJoinWindowIterator(std::move(wi), right_, parameter_, join_)); } const Row& LazyLastJoinIterator::GetValue() { @@ -140,29 +123,41 @@ const Row& LazyLastJoinIterator::GetValue() { return value_; } -std::unique_ptr LazyLastJoinTableHandler::GetWindowIterator(const std::string& idx_name) { - return nullptr; -} - -LazyLastJoinWindowIterator::LazyLastJoinWindowIterator(std::unique_ptr&& iter, - std::shared_ptr right, const Row& param, - std::shared_ptr join) - : left_(std::move(iter)), right_(right), parameter_(param), join_(join) {} -std::unique_ptr LazyLastJoinWindowIterator::GetValue() { - auto iter = left_->GetValue(); +codec::RowIterator* LazyJoinTableHandler::GetRawIterator() { + auto iter = left_->GetIterator(); if (!iter) { - return std::unique_ptr(); + return {}; } - return std::unique_ptr(new LazyLastJoinIterator(std::move(iter), right_, parameter_, join_)); + switch (join_->join_type_) { + case node::kJoinTypeLast: + return new LazyLastJoinIterator(std::move(iter), right_, parameter_, join_); + case node::kJoinTypeLeft: + return new LazyLeftJoinIterator(std::move(iter), right_, parameter_, join_); + default: + return {}; + } } -RowIterator* LazyLastJoinWindowIterator::GetRawValue() { + +LazyJoinWindowIterator::LazyJoinWindowIterator(std::unique_ptr&& iter, + std::shared_ptr right, const Row& param, + std::shared_ptr join) + : left_(std::move(iter)), right_(right), parameter_(param), join_(join) {} + +codec::RowIterator* LazyJoinWindowIterator::GetRawValue() { auto iter = left_->GetValue(); if (!iter) { return nullptr; } - return new LazyLastJoinIterator(std::move(iter), right_, parameter_, join_); + switch (join_->join_type_) { + case node::kJoinTypeLast: + return new LazyLastJoinIterator(std::move(iter), right_, parameter_, join_); + case node::kJoinTypeLeft: + return new LazyLeftJoinIterator(std::move(iter), right_, parameter_, join_); + default: + return {}; + } } std::shared_ptr ConcatPartitionHandler::GetSegment(const std::string& key) { @@ -181,14 +176,6 @@ RowIterator* ConcatPartitionHandler::GetRawIterator() { return new ConcatIterator(std::move(li), left_slices_, std::move(ri), right_slices_); } -std::unique_ptr ConcatPartitionHandler::GetIterator() { - auto p = GetRawIterator(); - if (p == nullptr) { - return {}; - } - return std::unique_ptr(p); -} - std::unique_ptr LazyRequestUnionPartitionHandler::GetWindowIterator() { auto w = left_->GetWindowIterator(); if (!w) { @@ -202,14 +189,12 @@ std::shared_ptr LazyRequestUnionPartitionHandler::GetSegment(const return nullptr; } -std::unique_ptr LazyRequestUnionPartitionHandler::GetIterator() { - return std::unique_ptr(GetRawIterator()); -} const IndexHint& LazyRequestUnionPartitionHandler::GetIndex() { return left_->GetIndex(); } const Types& LazyRequestUnionPartitionHandler::GetTypes() { return left_->GetTypes(); } -base::ConstIterator* LazyRequestUnionPartitionHandler::GetRawIterator() { return nullptr; } +codec::RowIterator* LazyRequestUnionPartitionHandler::GetRawIterator() { return nullptr; } + bool LazyAggIterator::Valid() const { return it_->Valid(); } void LazyAggIterator::Next() { it_->Next(); } const uint64_t& LazyAggIterator::GetKey() const { return it_->GetKey(); } @@ -229,22 +214,15 @@ const Row& LazyAggIterator::GetValue() { void LazyAggIterator::Seek(const uint64_t& key) { it_->Seek(key); } void LazyAggIterator::SeekToFirst() { it_->SeekToFirst(); } -std::unique_ptr LazyAggTableHandler::GetIterator() { - auto* it = GetRawIterator(); - if (it == nullptr) { - return {}; - } - return std::unique_ptr(it); -} -std::unique_ptr LazyAggTableHandler::GetWindowIterator(const std::string& idx_name) { return nullptr; } -base::ConstIterator* LazyAggTableHandler::GetRawIterator() { + +codec::RowIterator* LazyAggTableHandler::GetRawIterator() { auto it = left_->GetIterator(); if (!it) { return nullptr; } return new LazyAggIterator(std::move(it), func_, agg_gen_, parameter_); } -std::shared_ptr LazyAggTableHandler::GetPartition(const std::string& index_name) { return nullptr; } + const Types& LazyAggTableHandler::GetTypes() { return left_->GetTypes(); } const IndexHint& LazyAggTableHandler::GetIndex() { return left_->GetIndex(); } const Schema* LazyAggTableHandler::GetSchema() { return nullptr; } @@ -255,11 +233,12 @@ std::shared_ptr LazyAggPartitionHandler::GetSegment(const std::str return std::shared_ptr(new LazyAggTableHandler(seg, input_->Func(), agg_gen_, parameter_)); } const std::string LazyAggPartitionHandler::GetHandlerTypeName() { return "LazyLastJoinPartitionHandler"; } -std::unique_ptr LazyAggPartitionHandler::GetIterator() { + +codec::RowIterator* LazyAggPartitionHandler::GetRawIterator() { auto it = input_->Left()->GetIterator(); - return std::unique_ptr(new LazyAggIterator(std::move(it), input_->Func(), agg_gen_, parameter_)); + return new LazyAggIterator(std::move(it), input_->Func(), agg_gen_, parameter_); } -base::ConstIterator* LazyAggPartitionHandler::GetRawIterator() { return nullptr; } + bool ConcatIterator::Valid() const { return left_ && left_->Valid(); } void ConcatIterator::Next() { left_->Next(); @@ -288,13 +267,6 @@ void ConcatIterator::SeekToFirst() { right_->SeekToFirst(); } } -std::unique_ptr SimpleConcatTableHandler::GetIterator() { - auto p = GetRawIterator(); - if (p == nullptr) { - return {}; - } - return std::unique_ptr(p); -} RowIterator* SimpleConcatTableHandler::GetRawIterator() { auto li = left_->GetIterator(); if (!li) { @@ -303,13 +275,7 @@ RowIterator* SimpleConcatTableHandler::GetRawIterator() { auto ri = right_->GetIterator(); return new ConcatIterator(std::move(li), left_slices_, std::move(ri), right_slices_); } -std::unique_ptr SimpleConcatTableHandler::GetWindowIterator(const std::string& idx_name) { - return nullptr; -} std::unique_ptr ConcatPartitionHandler::GetWindowIterator() { return nullptr; } -std::unique_ptr ConcatPartitionHandler::GetWindowIterator(const std::string& idx_name) { - return nullptr; -} std::unique_ptr LazyAggPartitionHandler::GetWindowIterator() { auto w = input_->Left()->GetWindowIterator(); @@ -383,5 +349,53 @@ const Row LazyRequestUnionWindowIterator::GetKey() { return left_->GetKey(); } void LazyRequestUnionWindowIterator::SeekToFirst() { left_->SeekToFirst(); } void LazyRequestUnionWindowIterator::Seek(const std::string& key) { left_->Seek(key); } void LazyRequestUnionWindowIterator::Next() { left_->Next(); } +const std::string LazyJoinPartitionHandler::GetHandlerTypeName() { + return "LazyJoinPartitionHandler(" + node::JoinTypeName(join_->join_type_) + ")"; +} +const std::string LazyJoinTableHandler::GetHandlerTypeName() { + return "LazyJoinTableHandler(" + node::JoinTypeName(join_->join_type_) + ")"; +} +void LazyLeftJoinIterator::Next() { + if (right_it_ && right_it_->Valid()) { + right_it_->Next(); + auto res = join_->RowJoinIterator(left_value_, right_it_, parameter_); + matches_right_ |= res.second; + if (matches_right_ && !right_it_->Valid()) { + // matched from right somewhere, skip the NULL match + left_it_->Next(); + onNewLeftRow(); + } else { + // RowJoinIterator returns NULL match by default + value_ = res.first; + } + } else { + left_it_->Next(); + onNewLeftRow(); + } +} +void LazyLeftJoinIterator::onNewLeftRow() { + // reset + right_it_ = nullptr; + left_value_ = Row(); + value_ = Row(); + matches_right_ = false; + + if (!left_it_->Valid()) { + // end of iterator + return; + } + + left_value_ = left_it_->GetValue(); + if (right_partition_) { + right_it_ = join_->InitRight(left_value_, right_partition_, parameter_); + } else { + right_it_ = right_->GetIterator(); + right_it_->SeekToFirst(); + } + + auto res = join_->RowJoinIterator(left_value_, right_it_, parameter_); + value_ = res.first; + matches_right_ |= res.second; +} } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/catalog_wrapper.h b/hybridse/src/vm/catalog_wrapper.h index 855eb1f703a..bfd1265aa82 100644 --- a/hybridse/src/vm/catalog_wrapper.h +++ b/hybridse/src/vm/catalog_wrapper.h @@ -22,6 +22,7 @@ #include #include +#include "absl/base/attributes.h" #include "codec/row_iterator.h" #include "vm/catalog.h" #include "vm/generator.h" @@ -144,15 +145,6 @@ class WindowIteratorProjectWrapper : public WindowIterator { const ProjectFun* fun) : WindowIterator(), iter_(std::move(iter)), parameter_(parameter), fun_(fun) {} virtual ~WindowIteratorProjectWrapper() {} - std::unique_ptr GetValue() override { - auto iter = iter_->GetValue(); - if (!iter) { - return std::unique_ptr(); - } else { - return std::unique_ptr( - new IteratorProjectWrapper(std::move(iter), parameter_, fun_)); - } - } RowIterator* GetRawValue() override { auto iter = iter_->GetValue(); if (!iter) { @@ -178,15 +170,6 @@ class WindowIteratorFilterWrapper : public WindowIterator { const PredicateFun* fun) : WindowIterator(), iter_(std::move(iter)), parameter_(parameter), fun_(fun) {} virtual ~WindowIteratorFilterWrapper() {} - std::unique_ptr GetValue() override { - auto iter = iter_->GetValue(); - if (!iter) { - return std::unique_ptr(); - } else { - return std::unique_ptr( - new IteratorFilterWrapper(std::move(iter), parameter_, fun_)); - } - } RowIterator* GetRawValue() override { auto iter = iter_->GetValue(); if (!iter) { @@ -242,16 +225,7 @@ class PartitionProjectWrapper : public PartitionHandler { const std::string& GetDatabase() override { return partition_handler_->GetDatabase(); } - std::unique_ptr> GetIterator() override { - auto iter = partition_handler_->GetIterator(); - if (!iter) { - return std::unique_ptr(); - } else { - return std::unique_ptr( - new IteratorProjectWrapper(std::move(iter), parameter_, fun_)); - } - } - base::ConstIterator* GetRawIterator() override; + codec::RowIterator* GetRawIterator() override; Row At(uint64_t pos) override { value_ = fun_->operator()(partition_handler_->At(pos), parameter_); return value_; @@ -305,16 +279,8 @@ class PartitionFilterWrapper : public PartitionHandler { const std::string& GetDatabase() override { return partition_handler_->GetDatabase(); } - std::unique_ptr> GetIterator() override { - auto iter = partition_handler_->GetIterator(); - if (!iter) { - return std::unique_ptr>(); - } else { - return std::unique_ptr( - new IteratorFilterWrapper(std::move(iter), parameter_, fun_)); - } - } - base::ConstIterator* GetRawIterator() override; + + codec::RowIterator* GetRawIterator() override; std::shared_ptr GetSegment(const std::string& key) override; @@ -336,15 +302,6 @@ class TableProjectWrapper : public TableHandler { : TableHandler(), table_hander_(table_handler), parameter_(parameter), value_(), fun_(fun) {} virtual ~TableProjectWrapper() {} - std::unique_ptr GetIterator() override { - auto iter = table_hander_->GetIterator(); - if (!iter) { - return std::unique_ptr(); - } else { - return std::unique_ptr( - new IteratorProjectWrapper(std::move(iter), parameter_, fun_)); - } - } const Types& GetTypes() override { return table_hander_->GetTypes(); } const IndexHint& GetIndex() override { return table_hander_->GetIndex(); } std::unique_ptr GetWindowIterator( @@ -362,7 +319,7 @@ class TableProjectWrapper : public TableHandler { const std::string& GetDatabase() override { return table_hander_->GetDatabase(); } - base::ConstIterator* GetRawIterator() override { + codec::RowIterator* GetRawIterator() override { auto iter = table_hander_->GetIterator(); if (!iter) { return nullptr; @@ -391,14 +348,6 @@ class TableFilterWrapper : public TableHandler { : TableHandler(), table_hander_(table_handler), parameter_(parameter), fun_(fun) {} virtual ~TableFilterWrapper() {} - std::unique_ptr GetIterator() override { - auto iter = table_hander_->GetIterator(); - if (!iter) { - return std::unique_ptr(); - } else { - return std::make_unique(std::move(iter), parameter_, fun_); - } - } const Types& GetTypes() override { return table_hander_->GetTypes(); } const IndexHint& GetIndex() override { return table_hander_->GetIndex(); } @@ -414,9 +363,13 @@ class TableFilterWrapper : public TableHandler { const Schema* GetSchema() override { return table_hander_->GetSchema(); } const std::string& GetName() override { return table_hander_->GetName(); } const std::string& GetDatabase() override { return table_hander_->GetDatabase(); } - base::ConstIterator* GetRawIterator() override { - return new IteratorFilterWrapper(static_cast>(table_hander_->GetRawIterator()), - parameter_, fun_); + codec::RowIterator* GetRawIterator() override { + auto iter = table_hander_->GetIterator(); + if (!iter) { + return nullptr; + } else { + return new IteratorFilterWrapper(std::move(iter), parameter_, fun_); + } } std::shared_ptr GetPartition(const std::string& index_name) override; const OrderType GetOrderType() const override { return table_hander_->GetOrderType(); } @@ -428,29 +381,25 @@ class TableFilterWrapper : public TableHandler { const PredicateFun* fun_; }; -class LimitTableHandler : public TableHandler { +class LimitTableHandler final : public TableHandler { public: explicit LimitTableHandler(std::shared_ptr table, int32_t limit) : TableHandler(), table_hander_(table), limit_(limit) {} virtual ~LimitTableHandler() {} - std::unique_ptr GetIterator() override { - auto iter = table_hander_->GetIterator(); - if (!iter) { - return std::unique_ptr(); - } else { - return std::make_unique(std::move(iter), limit_); - } - } - // FIXME(ace): do not use this, not implemented std::unique_ptr GetWindowIterator(const std::string& idx_name) override { LOG(ERROR) << "window iterator for LimitTableHandler is not implemented, don't use"; return table_hander_->GetWindowIterator(idx_name); } - base::ConstIterator* GetRawIterator() override { - return new LimitIterator(static_cast>(table_hander_->GetRawIterator()), limit_); + codec::RowIterator* GetRawIterator() override { + auto iter = table_hander_->GetIterator(); + if (!iter) { + return nullptr; + } else { + return new LimitIterator(std::move(iter), limit_); + } } const Types& GetTypes() override { return table_hander_->GetTypes(); } @@ -564,10 +513,15 @@ class RowCombineWrapper : public RowHandler { const ProjectFun* fun_; }; +// Last Join iterator on demand +// for request mode, right source must be a PartitionHandler class LazyLastJoinIterator : public RowIterator { public: - LazyLastJoinIterator(std::unique_ptr&& left, std::shared_ptr right, const Row& param, - std::shared_ptr join); + LazyLastJoinIterator(std::unique_ptr&& left, std::shared_ptr right, const Row& param, + std::shared_ptr join) ABSL_ATTRIBUTE_NONNULL() + : left_it_(std::move(left)), right_(right), parameter_(param), join_(join) { + SeekToFirst(); + } ~LazyLastJoinIterator() override {} @@ -584,30 +538,82 @@ class LazyLastJoinIterator : public RowIterator { private: std::unique_ptr left_it_; - std::shared_ptr right_; + std::shared_ptr right_; const Row& parameter_; std::shared_ptr join_; Row value_; }; +class LazyLeftJoinIterator : public RowIterator { + public: + LazyLeftJoinIterator(std::unique_ptr&& left, std::shared_ptr right, const Row& param, + std::shared_ptr join) + : left_it_(std::move(left)), right_(right), parameter_(param), join_(join) { + if (right_->GetHandlerType() == kPartitionHandler) { + right_partition_ = std::dynamic_pointer_cast(right_); + } + SeekToFirst(); + } + + ~LazyLeftJoinIterator() override {} + + bool Valid() const override { return left_it_->Valid(); } + + // actual compute performed here, left_it_ and right_it_ is updated to the next position of join + void Next() override; + + const uint64_t& GetKey() const override { + return left_it_->GetKey(); + } + + const Row& GetValue() override { + return value_; + } + + bool IsSeekable() const override { return true; }; + + void Seek(const uint64_t& key) override { + left_it_->Seek(key); + onNewLeftRow(); + } + + void SeekToFirst() override { + left_it_->SeekToFirst(); + onNewLeftRow(); + } + + private: + // left_value_ changed, update right_it_ based on join condition + void onNewLeftRow(); + + std::unique_ptr left_it_; + std::shared_ptr right_; + std::shared_ptr right_partition_; + const Row parameter_; + std::shared_ptr join_; + + // whether current left row has any rows from right joined, left join fallback to NULL if non matches + bool matches_right_ = false; + std::unique_ptr right_it_; + Row left_value_; + Row value_; +}; -class LazyLastJoinPartitionHandler final : public PartitionHandler { +class LazyJoinPartitionHandler final : public PartitionHandler { public: - LazyLastJoinPartitionHandler(std::shared_ptr left, std::shared_ptr right, - const Row& param, std::shared_ptr join); - ~LazyLastJoinPartitionHandler() override {} + LazyJoinPartitionHandler(std::shared_ptr left, std::shared_ptr right, + const Row& param, std::shared_ptr join); + ~LazyJoinPartitionHandler() override {} // NOTE: only support get segement by key from left source std::shared_ptr GetSegment(const std::string& key) override; - const std::string GetHandlerTypeName() override { - return "LazyLastJoinPartitionHandler"; - } - - std::unique_ptr GetIterator() override; + const std::string GetHandlerTypeName() override; std::unique_ptr GetWindowIterator() override; + codec::RowIterator* GetRawIterator() override; + const IndexHint& GetIndex() override { return left_->GetIndex(); } // unimplemented @@ -615,54 +621,36 @@ class LazyLastJoinPartitionHandler final : public PartitionHandler { // unimplemented const Schema* GetSchema() override { return nullptr; } - const std::string& GetName() override { return name_; } - const std::string& GetDatabase() override { return db_; } - - // unimplemented - base::ConstIterator* GetRawIterator() override { - return nullptr; - } + const std::string& GetName() override { return left_->GetName(); } + const std::string& GetDatabase() override { return left_->GetDatabase(); } private: std::shared_ptr left_; - std::shared_ptr right_; + std::shared_ptr right_; const Row& parameter_; std::shared_ptr join_; - - std::string name_ = ""; - std::string db_ = ""; }; -class LazyLastJoinTableHandler final : public TableHandler { +class LazyJoinTableHandler final : public TableHandler { public: - LazyLastJoinTableHandler(std::shared_ptr left, std::shared_ptr right, - const Row& param, std::shared_ptr join); - ~LazyLastJoinTableHandler() override {} + LazyJoinTableHandler(std::shared_ptr left, std::shared_ptr right, const Row& param, + std::shared_ptr join) + : left_(left), right_(right), parameter_(param), join_(join) { + } - std::unique_ptr GetIterator() override; + ~LazyJoinTableHandler() override {} // unimplemented const Types& GetTypes() override { return left_->GetTypes(); } const IndexHint& GetIndex() override { return left_->GetIndex(); } - // unimplemented - std::unique_ptr GetWindowIterator(const std::string& idx_name) override; - // unimplemented const Schema* GetSchema() override { return nullptr; } - const std::string& GetName() override { return name_; } - const std::string& GetDatabase() override { return db_; } - - base::ConstIterator* GetRawIterator() override { - // unimplemented - return nullptr; - } + const std::string& GetName() override { return left_->GetName(); } + const std::string& GetDatabase() override { return left_->GetDatabase(); } - Row At(uint64_t pos) override { - // unimplemented - return value_; - } + codec::RowIterator* GetRawIterator() override; const uint64_t GetCount() override { return left_->GetCount(); } @@ -670,30 +658,23 @@ class LazyLastJoinTableHandler final : public TableHandler { const OrderType GetOrderType() const override { return left_->GetOrderType(); } - const std::string GetHandlerTypeName() override { - return "LazyLastJoinTableHandler"; - } + const std::string GetHandlerTypeName() override; private: std::shared_ptr left_; - std::shared_ptr right_; - const Row& parameter_; + std::shared_ptr right_; + const Row parameter_; std::shared_ptr join_; - - Row value_; - std::string name_ = ""; - std::string db_ = ""; }; -class LazyLastJoinWindowIterator final : public codec::WindowIterator { +class LazyJoinWindowIterator final : public codec::WindowIterator { public: - LazyLastJoinWindowIterator(std::unique_ptr&& iter, std::shared_ptr right, - const Row& param, std::shared_ptr join); + LazyJoinWindowIterator(std::unique_ptr&& iter, std::shared_ptr right, const Row& param, + std::shared_ptr join); - ~LazyLastJoinWindowIterator() override {} + ~LazyJoinWindowIterator() override {} - std::unique_ptr GetValue() override; - RowIterator* GetRawValue() override; + codec::RowIterator* GetRawValue() override; void Seek(const std::string& key) override { left_->Seek(key); } void SeekToFirst() override { left_->SeekToFirst(); } @@ -702,7 +683,7 @@ class LazyLastJoinWindowIterator final : public codec::WindowIterator { const Row GetKey() override { return left_->GetKey(); } std::shared_ptr left_; - std::shared_ptr right_; + std::shared_ptr right_; const Row& parameter_; std::shared_ptr join_; }; @@ -772,7 +753,7 @@ class LazyRequestUnionPartitionHandler final : public PartitionHandler { const std::string GetHandlerTypeName() override { return "LazyRequestUnionPartitiontHandler"; } - std::unique_ptr GetIterator() override; + codec::RowIterator* GetRawIterator() override; const IndexHint& GetIndex() override; @@ -784,8 +765,6 @@ class LazyRequestUnionPartitionHandler final : public PartitionHandler { const std::string& GetName() override { return left_->GetName(); } const std::string& GetDatabase() override { return left_->GetDatabase(); } - base::ConstIterator* GetRawIterator() override; - auto Left() const { return left_; } auto Func() const { return func_; } @@ -832,20 +811,15 @@ class LazyAggTableHandler final : public TableHandler { } ~LazyAggTableHandler() override {} - std::unique_ptr GetIterator() override; + RowIterator* GetRawIterator() override; // unimplemented const Types& GetTypes() override; const IndexHint& GetIndex() override; - std::unique_ptr GetWindowIterator(const std::string& idx_name) override; const Schema* GetSchema() override; const std::string& GetName() override; const std::string& GetDatabase() override; - base::ConstIterator* GetRawIterator() override; - - std::shared_ptr GetPartition(const std::string& index_name) override; - private: std::shared_ptr left_; std::function(const Row&)> func_; @@ -887,7 +861,7 @@ class LazyAggPartitionHandler final : public PartitionHandler { const std::string GetHandlerTypeName() override; - std::unique_ptr GetIterator() override; + codec::RowIterator* GetRawIterator() override; std::unique_ptr GetWindowIterator() override; @@ -898,7 +872,6 @@ class LazyAggPartitionHandler final : public PartitionHandler { const Schema* GetSchema() override { return nullptr; } const std::string& GetName() override { return input_->GetName(); } const std::string& GetDatabase() override { return input_->GetDatabase(); } - base::ConstIterator* GetRawIterator() override; private: std::shared_ptr input_; @@ -942,12 +915,8 @@ class SimpleConcatTableHandler final : public TableHandler { : left_(left), left_slices_(left_slices), right_(right), right_slices_(right_slices) {} ~SimpleConcatTableHandler() override {} - std::unique_ptr GetIterator() override; - RowIterator* GetRawIterator() override; - std::unique_ptr GetWindowIterator(const std::string& idx_name) override; - const Types& GetTypes() override { return left_->GetTypes(); } const IndexHint& GetIndex() override { return left_->GetIndex(); } @@ -971,12 +940,8 @@ class ConcatPartitionHandler final : public PartitionHandler { : left_(left), left_slices_(left_slices), right_(right), right_slices_(right_slices) {} ~ConcatPartitionHandler() override {} - std::unique_ptr GetIterator() override; - RowIterator* GetRawIterator() override; - std::unique_ptr GetWindowIterator(const std::string& idx_name) override; - std::unique_ptr GetWindowIterator() override; std::shared_ptr GetSegment(const std::string& key) override; diff --git a/hybridse/src/vm/cluster_task.cc b/hybridse/src/vm/cluster_task.cc new file mode 100644 index 00000000000..25b4afb1281 --- /dev/null +++ b/hybridse/src/vm/cluster_task.cc @@ -0,0 +1,136 @@ +/** + * Copyright (c) 2023 OpenMLDB authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "vm/cluster_task.h" + +namespace hybridse { +namespace vm { +const bool RouteInfo::IsCompleted() const { return table_handler_ && !index_.empty() && index_key_.ValidKey(); } +const bool RouteInfo::EqualWith(const RouteInfo& info1, const RouteInfo& info2) { + return info1.input_ == info2.input_ && info1.table_handler_ == info2.table_handler_ && + info1.index_ == info2.index_ && node::ExprEquals(info1.index_key_.keys_, info2.index_key_.keys_); +} +const std::string RouteInfo::ToString() const { + if (IsCompleted()) { + std::ostringstream oss; + if (lazy_route_) { + oss << "[LAZY]"; + } + oss << ", routing index = " << table_handler_->GetDatabase() << "." << table_handler_->GetName() << "." + << index_ << ", " << index_key_.ToString(); + return oss.str(); + } else { + return ""; + } +} +const bool RouteInfo::IsCluster() const { return table_handler_ && !index_.empty(); } +void ClusterTask::Print(std::ostream& output, const std::string& tab) const { + output << route_info_.ToString() << "\n"; + if (nullptr == root_) { + output << tab << "NULL RUNNER\n"; + } else { + std::set visited_ids; + root_->Print(output, tab, &visited_ids); + } +} +void ClusterTask::ResetInputs(std::shared_ptr input) { + for (auto input_runner : input_runners_) { + input_runner->SetProducer(0, route_info_.input_->GetRoot()); + } + route_info_.index_key_input_runner_ = route_info_.input_->GetRoot(); + route_info_.input_ = input; +} +Runner* ClusterTask::GetInputRunner(size_t idx) const { + return idx >= input_runners_.size() ? nullptr : input_runners_[idx]; +} +const bool ClusterTask::TaskCanBeMerge(const ClusterTask& task1, const ClusterTask& task2) { + return RouteInfo::EqualWith(task1.route_info_, task2.route_info_); +} +const ClusterTask ClusterTask::TaskMerge(Runner* root, const ClusterTask& task1, const ClusterTask& task2) { + return TaskMergeToLeft(root, task1, task2); +} +const ClusterTask ClusterTask::TaskMergeToLeft(Runner* root, const ClusterTask& task1, const ClusterTask& task2) { + std::vector input_runners; + for (auto runner : task1.input_runners_) { + input_runners.push_back(runner); + } + for (auto runner : task2.input_runners_) { + input_runners.push_back(runner); + } + return ClusterTask(root, input_runners, task1.route_info_); +} +const ClusterTask ClusterTask::TaskMergeToRight(Runner* root, const ClusterTask& task1, const ClusterTask& task2) { + std::vector input_runners; + for (auto runner : task1.input_runners_) { + input_runners.push_back(runner); + } + for (auto runner : task2.input_runners_) { + input_runners.push_back(runner); + } + return ClusterTask(root, input_runners, task2.route_info_); +} +const Runner* ClusterTask::GetRequestInput(const ClusterTask& task) { + if (!task.IsValid()) { + return nullptr; + } + auto input_task = task.GetInput(); + if (input_task) { + return input_task->GetRoot(); + } + return nullptr; +} +ClusterTask ClusterJob::GetTask(int32_t id) { + if (id < 0 || id >= static_cast(tasks_.size())) { + LOG(WARNING) << "fail get task: task " << id << " not exist"; + return ClusterTask(); + } + return tasks_[id]; +} +int32_t ClusterJob::AddTask(const ClusterTask& task) { + if (!task.IsValid()) { + LOG(WARNING) << "fail to add invalid task"; + return -1; + } + tasks_.push_back(task); + return tasks_.size() - 1; +} +bool ClusterJob::AddRunnerToTask(Runner* runner, const int32_t id) { + if (id < 0 || id >= static_cast(tasks_.size())) { + LOG(WARNING) << "fail update task: task " << id << " not exist"; + return false; + } + runner->AddProducer(tasks_[id].GetRoot()); + tasks_[id].SetRoot(runner); + return true; +} +void ClusterJob::Print(std::ostream& output, const std::string& tab) const { + if (tasks_.empty()) { + output << "EMPTY CLUSTER JOB\n"; + return; + } + for (size_t i = 0; i < tasks_.size(); i++) { + if (main_task_id_ == static_cast(i)) { + output << "MAIN TASK ID " << i; + } else { + output << "TASK ID " << i; + } + tasks_[i].Print(output, tab); + output << "\n"; + } +} +void ClusterJob::Print() const { this->Print(std::cout, " "); } +} // namespace vm +} // namespace hybridse diff --git a/hybridse/src/vm/cluster_task.h b/hybridse/src/vm/cluster_task.h new file mode 100644 index 00000000000..6b34d2a55d3 --- /dev/null +++ b/hybridse/src/vm/cluster_task.h @@ -0,0 +1,182 @@ +/** + * Copyright (c) 2023 OpenMLDB authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef HYBRIDSE_SRC_VM_CLUSTER_TASK_H_ +#define HYBRIDSE_SRC_VM_CLUSTER_TASK_H_ + +#include +#include +#include +#include + +#include "vm/catalog.h" +#include "vm/physical_op.h" +#include "vm/runner.h" + +namespace hybridse { +namespace vm { + +class ClusterTask; + +class RouteInfo { + public: + RouteInfo() + : index_(), + index_key_(), + index_key_input_runner_(nullptr), + input_(), + table_handler_() {} + RouteInfo(const std::string index, + std::shared_ptr table_handler) + : index_(index), + index_key_(), + index_key_input_runner_(nullptr), + input_(), + table_handler_(table_handler) {} + RouteInfo(const std::string index, const Key& index_key, + std::shared_ptr input, + std::shared_ptr table_handler) + : index_(index), + index_key_(index_key), + index_key_input_runner_(nullptr), + input_(input), + table_handler_(table_handler) {} + ~RouteInfo() {} + const bool IsCompleted() const; + const bool IsCluster() const; + static const bool EqualWith(const RouteInfo& info1, const RouteInfo& info2); + + const std::string ToString() const; + std::string index_; + Key index_key_; + Runner* index_key_input_runner_; + std::shared_ptr input_; + std::shared_ptr table_handler_; + + // if true: generate the complete ClusterTask only when requires + bool lazy_route_ = false; +}; + +// task info of cluster job +// partitoin/index info +// index key generator +// request generator +class ClusterTask { + public: + // common tasks + ClusterTask() : root_(nullptr), input_runners_(), route_info_() {} + explicit ClusterTask(Runner* root) + : root_(root), input_runners_(), route_info_() {} + + // cluster task with explicit routeinfo + ClusterTask(Runner* root, const std::shared_ptr table_handler, + std::string index) + : root_(root), input_runners_(), route_info_(index, table_handler) {} + ClusterTask(Runner* root, const std::vector& input_runners, + const RouteInfo& route_info) + : root_(root), input_runners_(input_runners), route_info_(route_info) {} + ~ClusterTask() {} + + void Print(std::ostream& output, const std::string& tab) const; + + friend std::ostream& operator<<(std::ostream& os, const ClusterTask& output) { + output.Print(os, ""); + return os; + } + + void ResetInputs(std::shared_ptr input); + Runner* GetRoot() const { return root_; } + void SetRoot(Runner* root) { root_ = root; } + Runner* GetInputRunner(size_t idx) const; + Runner* GetIndexKeyInput() const { + return route_info_.index_key_input_runner_; + } + std::shared_ptr GetInput() const { return route_info_.input_; } + Key GetIndexKey() const { return route_info_.index_key_; } + void SetIndexKey(const Key& key) { route_info_.index_key_ = key; } + void SetInput(std::shared_ptr input) { + route_info_.input_ = input; + } + + const bool IsValid() const { return nullptr != root_; } + + const bool IsCompletedClusterTask() const { + return IsValid() && route_info_.IsCompleted(); + } + const bool IsUnCompletedClusterTask() const { + return IsClusterTask() && !route_info_.IsCompleted(); + } + const bool IsClusterTask() const { return route_info_.IsCluster(); } + const std::string& index() { return route_info_.index_; } + std::shared_ptr table_handler() { + return route_info_.table_handler_; + } + + // Cluster tasks with same input runners and index keys can be merged + static const bool TaskCanBeMerge(const ClusterTask& task1, const ClusterTask& task2); + static const ClusterTask TaskMerge(Runner* root, const ClusterTask& task1, const ClusterTask& task2); + static const ClusterTask TaskMergeToLeft(Runner* root, const ClusterTask& task1, const ClusterTask& task2); + static const ClusterTask TaskMergeToRight(Runner* root, const ClusterTask& task1, const ClusterTask& task2); + static const Runner* GetRequestInput(const ClusterTask& task); + + const RouteInfo& GetRouteInfo() const { return route_info_; } + + protected: + Runner* root_; + std::vector input_runners_; + RouteInfo route_info_; +}; + +class ClusterJob { + public: + ClusterJob() + : tasks_(), main_task_id_(-1), sql_(""), common_column_indices_() {} + explicit ClusterJob(const std::string& sql, const std::string& db, + const std::set& common_column_indices) + : tasks_(), + main_task_id_(-1), + sql_(sql), + db_(db), + common_column_indices_(common_column_indices) {} + ClusterTask GetTask(int32_t id); + + ClusterTask GetMainTask() { return GetTask(main_task_id_); } + int32_t AddTask(const ClusterTask& task); + bool AddRunnerToTask(Runner* runner, const int32_t id); + + void AddMainTask(const ClusterTask& task) { main_task_id_ = AddTask(task); } + void Reset() { tasks_.clear(); } + const size_t GetTaskSize() const { return tasks_.size(); } + const bool IsValid() const { return !tasks_.empty(); } + const int32_t main_task_id() const { return main_task_id_; } + const std::string& sql() const { return sql_; } + const std::string& db() const { return db_; } + const std::set& common_column_indices() const { return common_column_indices_; } + void Print(std::ostream& output, const std::string& tab) const; + void Print() const; + + private: + std::vector tasks_; + int32_t main_task_id_; + std::string sql_; + std::string db_; + std::set common_column_indices_; +}; + +} // namespace vm +} // namespace hybridse + +#endif // HYBRIDSE_SRC_VM_CLUSTER_TASK_H_ diff --git a/hybridse/src/vm/engine.cc b/hybridse/src/vm/engine.cc index fc88a6ccda1..97eae8a9062 100644 --- a/hybridse/src/vm/engine.cc +++ b/hybridse/src/vm/engine.cc @@ -18,13 +18,8 @@ #include #include #include -#include "base/fe_strings.h" #include "boost/none.hpp" -#include "boost/optional.hpp" #include "codec/fe_row_codec.h" -#include "codec/fe_schema_codec.h" -#include "codec/list_iterator_codec.h" -#include "codegen/buf_ir_builder.h" #include "gflags/gflags.h" #include "llvm-c/Target.h" #include "udf/default_udf_library.h" @@ -32,6 +27,7 @@ #include "vm/mem_catalog.h" #include "vm/sql_compiler.h" #include "vm/internal/node_helper.h" +#include "vm/runner_ctx.h" DECLARE_bool(enable_spark_unsaferow_format); diff --git a/hybridse/src/vm/engine_compile_test.cc b/hybridse/src/vm/engine_compile_test.cc index d338a9176b0..b4a7c715f9b 100644 --- a/hybridse/src/vm/engine_compile_test.cc +++ b/hybridse/src/vm/engine_compile_test.cc @@ -251,13 +251,8 @@ TEST_F(EngineCompileTest, EngineCompileOnlyTest) { { std::vector sql_str_list = { - "SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 full join t2 on " - "t1.col1 = t2.col2;", "SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 left join t2 on " "t1.col1 = t2.col2;", - "SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 right join t2 " - "on " - "t1.col1 = t2.col2;", "SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 last join t2 " "order by t2.col5 on t1.col1 = t2.col2;"}; EngineOptions options; @@ -277,7 +272,7 @@ TEST_F(EngineCompileTest, EngineCompileOnlyTest) { std::vector sql_str_list = { "SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 full join t2 on " "t1.col1 = t2.col2;", - "SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 left join t2 on " + "SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 inner join t2 on " "t1.col1 = t2.col2;", "SELECT t1.COL1, t1.COL2, t2.COL1, t2.COL2 FROM t1 right join t2 " "on " diff --git a/hybridse/src/vm/generator.cc b/hybridse/src/vm/generator.cc index aaa16ff2783..39bb4d34d2e 100644 --- a/hybridse/src/vm/generator.cc +++ b/hybridse/src/vm/generator.cc @@ -16,6 +16,10 @@ #include "vm/generator.h" +#include + +#include "node/sql_node.h" +#include "vm/catalog.h" #include "vm/catalog_wrapper.h" #include "vm/runner.h" @@ -233,10 +237,41 @@ Row JoinGenerator::RowLastJoinDropLeftSlices( return right_row; } -std::shared_ptr JoinGenerator::LazyLastJoin(std::shared_ptr left, - std::shared_ptr right, - const Row& parameter) { - return std::make_shared(left, right, parameter, shared_from_this()); +std::shared_ptr JoinGenerator::LazyJoin(std::shared_ptr left, + std::shared_ptr right, const Row& parameter) { + if (left->GetHandlerType() == kPartitionHandler) { + return std::make_shared(std::dynamic_pointer_cast(left), right, + parameter, shared_from_this()); + } + + auto left_tb = std::dynamic_pointer_cast(left); + if (left->GetHandlerType() == kRowHandler) { + auto left_table = std::shared_ptr(new MemTableHandler()); + left_table->AddRow(std::dynamic_pointer_cast(left)->GetValue()); + left_tb = left_table; + } + return std::make_shared(left_tb, right, parameter, shared_from_this()); +} + +std::shared_ptr JoinGenerator::LazyJoinOptimized(std::shared_ptr left, + std::shared_ptr right, + const Row& parameter) { + return std::make_shared(left, right, parameter, shared_from_this()); +} + +std::unique_ptr JoinGenerator::InitRight(const Row& left_row, std::shared_ptr right, + const Row& param) { + auto partition_key = index_key_gen_.Gen(left_row, param); + auto right_seg = right->GetSegment(partition_key); + if (!right_seg) { + return {}; + } + auto it = right_seg->GetIterator(); + if (!it) { + return {}; + } + it->SeekToFirst(); + return it; } Row JoinGenerator::RowLastJoin(const Row& left_row, @@ -276,6 +311,7 @@ Row JoinGenerator::RowLastJoinPartition( auto right_table = partition->GetSegment(partition_key); return RowLastJoinTable(left_row, right_table, parameter); } + Row JoinGenerator::RowLastJoinTable(const Row& left_row, std::shared_ptr table, const Row& parameter) { @@ -326,6 +362,41 @@ Row JoinGenerator::RowLastJoinTable(const Row& left_row, return Row(left_slices_, left_row, right_slices_, Row()); } +std::pair JoinGenerator::RowJoinIterator(const Row& left_row, + std::unique_ptr& right_iter, + const Row& parameter) { + if (!right_iter || !right_iter ->Valid()) { + return {Row(left_slices_, left_row, right_slices_, Row()), false}; + } + + if (!left_key_gen_.Valid() && !condition_gen_.Valid()) { + auto right_value = right_iter->GetValue(); + return {Row(left_slices_, left_row, right_slices_, right_value), true}; + } + + std::string left_key_str = ""; + if (left_key_gen_.Valid()) { + left_key_str = left_key_gen_.Gen(left_row, parameter); + } + while (right_iter->Valid()) { + if (right_group_gen_.Valid()) { + auto right_key_str = right_group_gen_.GetKey(right_iter->GetValue(), parameter); + if (left_key_gen_.Valid() && left_key_str != right_key_str) { + right_iter->Next(); + continue; + } + } + + Row joined_row(left_slices_, left_row, right_slices_, right_iter->GetValue()); + if (!condition_gen_.Valid() || condition_gen_.Gen(joined_row, parameter)) { + return {joined_row, true}; + } + right_iter->Next(); + } + + return {Row(left_slices_, left_row, right_slices_, Row()), false}; +} + bool JoinGenerator::TableJoin(std::shared_ptr left, std::shared_ptr right, const Row& parameter, @@ -730,6 +801,103 @@ std::shared_ptr FilterGenerator::Filter(std::shared_ptr> InputsGenerator::RunInputs( + RunnerContext& ctx) { + std::vector> union_inputs; + for (auto runner : input_runners_) { + union_inputs.push_back(runner->RunWithCache(ctx)); + } + return union_inputs; +} + +std::vector> WindowUnionGenerator::PartitionEach( + std::vector> union_inputs, const Row& parameter) { + std::vector> union_partitions; + if (!windows_gen_.empty()) { + union_partitions.reserve(windows_gen_.size()); + for (size_t i = 0; i < inputs_cnt_; i++) { + union_partitions.push_back( + windows_gen_[i].partition_gen_.Partition(union_inputs[i], parameter)); + } + } + return union_partitions; +} + +std::vector> WindowJoinGenerator::RunInputs( + RunnerContext& ctx) { + std::vector> union_inputs; + if (!input_runners_.empty()) { + for (auto runner : input_runners_) { + union_inputs.push_back(runner->RunWithCache(ctx)); + } + } + return union_inputs; +} +Row WindowJoinGenerator::Join( + const Row& left_row, + const std::vector>& join_right_tables, + const Row& parameter) { + Row row = left_row; + for (size_t i = 0; i < join_right_tables.size(); i++) { + row = joins_gen_[i]->RowLastJoin(row, join_right_tables[i], parameter); + } + return row; +} + +void WindowJoinGenerator::AddWindowJoin(const class Join& join, size_t left_slices, Runner* runner) { + size_t right_slices = runner->output_schemas()->GetSchemaSourceSize(); + joins_gen_.push_back(JoinGenerator::Create(join, left_slices, right_slices)); + AddInput(runner); +} + +std::vector> RequestWindowUnionGenerator::GetRequestWindows( + const Row& row, const Row& parameter, std::vector> union_inputs) { + std::vector> union_segments(union_inputs.size()); + for (size_t i = 0; i < union_inputs.size(); i++) { + union_segments[i] = windows_gen_[i].GetRequestWindow(row, parameter, union_inputs[i]); + } + return union_segments; +} +void RequestWindowUnionGenerator::AddWindowUnion(const RequestWindowOp& window_op, Runner* runner) { + windows_gen_.emplace_back(window_op); + AddInput(runner); +} +void WindowUnionGenerator::AddWindowUnion(const WindowOp& window_op, Runner* runner) { + windows_gen_.push_back(WindowGenerator(window_op)); + AddInput(runner); +} +std::shared_ptr RequestWindowGenertor::GetRequestWindow(const Row& row, const Row& parameter, + std::shared_ptr input) { + auto segment = index_seek_gen_.SegmentOfKey(row, parameter, input); + if (filter_gen_.Valid()) { + auto filter_key = filter_gen_.GetKey(row, parameter); + segment = filter_gen_.Filter(parameter, segment, filter_key); + } + if (sort_gen_.Valid()) { + segment = sort_gen_.Sort(segment, true); + } + return segment; +} +std::shared_ptr FilterKeyGenerator::Filter(const Row& parameter, std::shared_ptr table, + const std::string& request_keys) { + if (!filter_key_.Valid()) { + return table; + } + auto mem_table = std::shared_ptr(new MemTimeTableHandler()); + mem_table->SetOrderType(table->GetOrderType()); + auto iter = table->GetIterator(); + if (iter) { + iter->SeekToFirst(); + while (iter->Valid()) { + std::string keys = filter_key_.Gen(iter->GetValue(), parameter); + if (request_keys == keys) { + mem_table->AddRow(iter->GetKey(), iter->GetValue()); + } + iter->Next(); + } + } + return mem_table; +} } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/generator.h b/hybridse/src/vm/generator.h index 7bb49337794..c3f82c22256 100644 --- a/hybridse/src/vm/generator.h +++ b/hybridse/src/vm/generator.h @@ -29,6 +29,10 @@ namespace hybridse { namespace vm { +// forward +class Runner; +class RunnerContext; + class ProjectFun { public: virtual Row operator()(const Row& row, const Row& parameter) const = 0; @@ -166,25 +170,7 @@ class FilterKeyGenerator { virtual ~FilterKeyGenerator() {} const bool Valid() const { return filter_key_.Valid(); } std::shared_ptr Filter(const Row& parameter, std::shared_ptr table, - const std::string& request_keys) { - if (!filter_key_.Valid()) { - return table; - } - auto mem_table = std::shared_ptr(new MemTimeTableHandler()); - mem_table->SetOrderType(table->GetOrderType()); - auto iter = table->GetIterator(); - if (iter) { - iter->SeekToFirst(); - while (iter->Valid()) { - std::string keys = filter_key_.Gen(iter->GetValue(), parameter); - if (request_keys == keys) { - mem_table->AddRow(iter->GetKey(), iter->GetValue()); - } - iter->Next(); - } - } - return mem_table; - } + const std::string& request_keys); const std::string GetKey(const Row& row, const Row& parameter) { return filter_key_.Valid() ? filter_key_.Gen(row, parameter) : ""; } @@ -287,18 +273,7 @@ class RequestWindowGenertor { index_seek_gen_(window.index_key_) {} virtual ~RequestWindowGenertor() {} std::shared_ptr GetRequestWindow(const Row& row, const Row& parameter, - std::shared_ptr input) { - auto segment = index_seek_gen_.SegmentOfKey(row, parameter, input); - - if (filter_gen_.Valid()) { - auto filter_key = filter_gen_.GetKey(row, parameter); - segment = filter_gen_.Filter(parameter, segment, filter_key); - } - if (sort_gen_.Valid()) { - segment = sort_gen_.Sort(segment, true); - } - return segment; - } + std::shared_ptr input); RequestWindowOp window_op_; FilterKeyGenerator filter_gen_; SortGenerator sort_gen_; @@ -314,6 +289,7 @@ class JoinGenerator : public std::enable_shared_from_this { } virtual ~JoinGenerator() {} + bool TableJoin(std::shared_ptr left, std::shared_ptr right, const Row& parameter, std::shared_ptr output); // NOLINT bool TableJoin(std::shared_ptr left, std::shared_ptr right, const Row& parameter, @@ -328,14 +304,29 @@ class JoinGenerator : public std::enable_shared_from_this { Row RowLastJoin(const Row& left_row, std::shared_ptr right, const Row& parameter); Row RowLastJoinDropLeftSlices(const Row& left_row, std::shared_ptr right, const Row& parameter); - std::shared_ptr LazyLastJoin(std::shared_ptr left, - std::shared_ptr right, const Row& parameter); + // lazy join, supports left join and last join + std::shared_ptr LazyJoin(std::shared_ptr left, std::shared_ptr right, + const Row& parameter); + std::shared_ptr LazyJoinOptimized(std::shared_ptr left, + std::shared_ptr right, const Row& parameter); + + // init right iterator from left row, returns right iterator, nullptr if no match + // apply to standard SQL joins like left join, not for last join & concat join + std::unique_ptr InitRight(const Row& left_row, std::shared_ptr right, + const Row& param); + + // row left join the iterator as right source, iterator is updated to the position of join, or + // last position if not found + // returns (joined_row, whether_any_right_row_matches) + std::pair RowJoinIterator(const Row& left_row, std::unique_ptr& right_it, // NOLINT + const Row& parameter); ConditionGenerator condition_gen_; KeyGenerator left_key_gen_; PartitionGenerator right_group_gen_; KeyGenerator index_key_gen_; SortGenerator right_sort_gen_; + node::JoinType join_type_; private: explicit JoinGenerator(const Join& join, size_t left_slices, size_t right_slices) @@ -344,6 +335,7 @@ class JoinGenerator : public std::enable_shared_from_this { right_group_gen_(join.right_key_), index_key_gen_(join.index_key_.fn_info()), right_sort_gen_(join.right_sort_), + join_type_(join.join_type()), left_slices_(left_slices), right_slices_(right_slices) {} @@ -354,6 +346,60 @@ class JoinGenerator : public std::enable_shared_from_this { size_t right_slices_; }; +class InputsGenerator { + public: + InputsGenerator() : inputs_cnt_(0), input_runners_() {} + virtual ~InputsGenerator() {} + + std::vector> RunInputs( + RunnerContext& ctx); // NOLINT + const bool Valid() const { return 0 != inputs_cnt_; } + void AddInput(Runner* runner) { + input_runners_.push_back(runner); + inputs_cnt_++; + } + size_t inputs_cnt_; + std::vector input_runners_; +}; +class WindowUnionGenerator : public InputsGenerator { + public: + WindowUnionGenerator() : InputsGenerator() {} + virtual ~WindowUnionGenerator() {} + std::vector> PartitionEach(std::vector> union_inputs, + const Row& parameter); + void AddWindowUnion(const WindowOp& window_op, Runner* runner); + std::vector windows_gen_; +}; + +class RequestWindowUnionGenerator : public InputsGenerator, + public std::enable_shared_from_this { + public: + [[nodiscard]] static std::shared_ptr Create() { + return std::shared_ptr(new RequestWindowUnionGenerator()); + } + virtual ~RequestWindowUnionGenerator() {} + + void AddWindowUnion(const RequestWindowOp& window_op, Runner* runner); + + std::vector> GetRequestWindows( + const Row& row, const Row& parameter, std::vector> union_inputs); + std::vector windows_gen_; + + private: + RequestWindowUnionGenerator() : InputsGenerator() {} +}; + +class WindowJoinGenerator : public InputsGenerator { + public: + WindowJoinGenerator() : InputsGenerator() {} + virtual ~WindowJoinGenerator() {} + void AddWindowJoin(const Join& join, size_t left_slices, Runner* runner); + std::vector> RunInputs(RunnerContext& ctx); // NOLINT + Row Join(const Row& left_row, const std::vector>& join_right_tables, + const Row& parameter); + std::vector> joins_gen_; +}; + } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/mem_catalog.cc b/hybridse/src/vm/mem_catalog.cc index 29a2e2791e4..f4f5897f10f 100644 --- a/hybridse/src/vm/mem_catalog.cc +++ b/hybridse/src/vm/mem_catalog.cc @@ -72,10 +72,6 @@ void MemWindowIterator::Seek(const std::string& key) { void MemWindowIterator::SeekToFirst() { iter_ = start_iter_; } void MemWindowIterator::Next() { iter_++; } bool MemWindowIterator::Valid() { return end_iter_ != iter_; } -std::unique_ptr MemWindowIterator::GetValue() { - return std::unique_ptr( - new MemTimeTableIterator(&(iter_->second), schema_)); -} RowIterator* MemWindowIterator::GetRawValue() { return new MemTimeTableIterator(&(iter_->second), schema_); @@ -114,12 +110,9 @@ MemTimeTableHandler::MemTimeTableHandler(const std::string& table_name, order_type_(kNoneOrder) {} MemTimeTableHandler::~MemTimeTableHandler() {} -std::unique_ptr MemTimeTableHandler::GetIterator() { - return std::make_unique(&table_, schema_); -} -std::unique_ptr MemTimeTableHandler::GetWindowIterator( - const std::string& idx_name) { - return std::unique_ptr(); + +RowIterator* MemTimeTableHandler::GetRawIterator() { + return new MemTimeTableIterator(&table_, schema_); } void MemTimeTableHandler::AddRow(const uint64_t key, const Row& row) { @@ -152,9 +145,6 @@ void MemTimeTableHandler::Reverse() { ? kDescOrder : kDescOrder == order_type_ ? kAscOrder : kNoneOrder; } -RowIterator* MemTimeTableHandler::GetRawIterator() { - return new MemTimeTableIterator(&table_, schema_); -} MemPartitionHandler::MemPartitionHandler() : PartitionHandler(), @@ -232,15 +222,6 @@ void MemPartitionHandler::Print() { } } -std::unique_ptr MemTableHandler::GetWindowIterator( - const std::string& idx_name) { - return std::unique_ptr(); -} -std::unique_ptr MemTableHandler::GetIterator() { - std::unique_ptr it( - new MemTableIterator(&table_, schema_)); - return std::move(it); -} RowIterator* MemTableHandler::GetRawIterator() { return new MemTableIterator(&table_, schema_); } diff --git a/hybridse/src/vm/runner.cc b/hybridse/src/vm/runner.cc index 7d26cdf899d..eb284e6e945 100644 --- a/hybridse/src/vm/runner.cc +++ b/hybridse/src/vm/runner.cc @@ -18,19 +18,19 @@ #include #include -#include #include #include "absl/status/status.h" -#include "absl/strings/str_cat.h" #include "absl/strings/substitute.h" #include "base/texttable.h" +#include "node/node_enum.h" #include "vm/catalog.h" #include "vm/catalog_wrapper.h" #include "vm/core_api.h" #include "vm/internal/eval.h" #include "vm/jit_runtime.h" #include "vm/mem_catalog.h" +#include "vm/runner_ctx.h" DECLARE_bool(enable_spark_unsaferow_format); @@ -40,915 +40,6 @@ namespace vm { #define MAX_DEBUG_LINES_CNT 20 #define MAX_DEBUG_COLUMN_MAX 20 -static bool IsPartitionProvider(vm::PhysicalOpNode* n) { - switch (n->GetOpType()) { - case kPhysicalOpSimpleProject: - case kPhysicalOpRename: - case kPhysicalOpRequestJoin: - return IsPartitionProvider(n->GetProducer(0)); - case kPhysicalOpDataProvider: - return dynamic_cast(n)->provider_type_ == kProviderTypePartition; - default: - return false; - } -} - -static vm::PhysicalDataProviderNode* request_node(vm::PhysicalOpNode* n) { - switch (n->GetOpType()) { - case kPhysicalOpDataProvider: - return dynamic_cast(n); - default: - return request_node(n->GetProducer(0)); - } -} - -// Build Runner for each physical node -// return cluster task of given runner -// -// DataRunner(kProviderTypePartition) --> cluster task -// RequestRunner --> local task -// DataRunner(kProviderTypeTable) --> LocalTask, Unsupport in distribute -// database -// -// SimpleProjectRunner --> inherit task -// TableProjectRunner --> inherit task -// WindowAggRunner --> LocalTask , Unsupport in distribute database -// GroupAggRunner --> LocalTask, Unsupport in distribute database -// -// RowProjectRunner --> inherit task -// ConstProjectRunner --> local task -// -// RequestUnionRunner -// --> complete route_info of right cluster task -// --> build proxy runner if need -// RequestJoinRunner -// --> complete route_info of right cluster task -// --> build proxy runner if need -// kPhysicalOpJoin -// --> kJoinTypeLast->RequestJoinRunner -// --> complete route_info of right cluster task -// --> build proxy runner if need -// --> kJoinTypeConcat -// --> build proxy runner if need -// kPhysicalOpPostRequestUnion -// --> build proxy runner if need -// GroupRunner --> LocalTask, Unsupport in distribute database -// kPhysicalOpFilter -// kPhysicalOpLimit -// kPhysicalOpRename -ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { - auto fail = InvalidTask(); - if (nullptr == node) { - status.msg = "fail to build runner : physical node is null"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto iter = task_map_.find(node); - if (iter != task_map_.cend()) { - iter->second.GetRoot()->EnableCache(); - return iter->second; - } - switch (node->GetOpType()) { - case kPhysicalOpDataProvider: { - auto op = dynamic_cast(node); - switch (op->provider_type_) { - case kProviderTypeTable: { - auto provider = - dynamic_cast(node); - DataRunner* runner = CreateRunner(id_++, node->schemas_ctx(), provider->table_handler_); - return RegisterTask(node, CommonTask(runner)); - } - case kProviderTypePartition: { - auto provider = - dynamic_cast( - node); - DataRunner* runner = CreateRunner( - id_++, node->schemas_ctx(), provider->table_handler_->GetPartition(provider->index_name_)); - if (support_cluster_optimized_) { - return RegisterTask( - node, UnCompletedClusterTask( - runner, provider->table_handler_, - provider->index_name_)); - } else { - return RegisterTask(node, CommonTask(runner)); - } - } - case kProviderTypeRequest: { - RequestRunner* runner = CreateRunner(id_++, node->schemas_ctx()); - return RegisterTask(node, BuildRequestTask(runner)); - } - default: { - status.msg = "fail to support data provider type " + - DataProviderTypeName(op->provider_type_); - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return RegisterTask(node, fail); - } - } - } - case kPhysicalOpSimpleProject: { - auto cluster_task = Build(node->producers().at(0), status); - if (!cluster_task.IsValid()) { - status.msg = "fail to build input runner for simple project:\n" + node->GetTreeString(); - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto op = dynamic_cast(node); - int select_slice = op->GetSelectSourceIndex(); - if (select_slice >= 0) { - SelectSliceRunner* runner = - CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), select_slice); - return RegisterTask(node, - UnaryInheritTask(cluster_task, runner)); - } else { - SimpleProjectRunner* runner = CreateRunner( - id_++, node->schemas_ctx(), op->GetLimitCnt(), op->project().fn_info()); - return RegisterTask(node, - UnaryInheritTask(cluster_task, runner)); - } - } - case kPhysicalOpConstProject: { - auto op = dynamic_cast(node); - ConstProjectRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), - op->project().fn_info()); - return RegisterTask(node, CommonTask(runner)); - } - case kPhysicalOpProject: { - auto cluster_task = // NOLINT - Build(node->producers().at(0), status); - if (!cluster_task.IsValid()) { - status.msg = "fail to build runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto input = cluster_task.GetRoot(); - auto op = dynamic_cast(node); - switch (op->project_type_) { - case kTableProject: { - if (support_cluster_optimized_) { - // Non-support table join under distribution env - status.msg = "fail to build cluster with table project"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - TableProjectRunner* runner = CreateRunner( - id_++, node->schemas_ctx(), op->GetLimitCnt(), op->project().fn_info()); - return RegisterTask(node, - UnaryInheritTask(cluster_task, runner)); - } - case kReduceAggregation: { - ReduceRunner* runner = CreateRunner( - id_++, node->schemas_ctx(), op->GetLimitCnt(), - dynamic_cast(node)->having_condition_, - op->project().fn_info()); - return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); - } - case kAggregation: { - auto agg_node = dynamic_cast(node); - if (agg_node == nullptr) { - status.msg = "fail to build AggRunner: input node is not PhysicalAggregationNode"; - status.code = common::kExecutionPlanError; - return fail; - } - AggRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), - agg_node->having_condition_, op->project().fn_info()); - return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); - } - case kGroupAggregation: { - if (support_cluster_optimized_) { - // Non-support group aggregation under distribution env - status.msg = - "fail to build cluster with group agg project"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto op = - dynamic_cast(node); - GroupAggRunner* runner = - CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->group_, - op->having_condition_, op->project().fn_info()); - return RegisterTask(node, - UnaryInheritTask(cluster_task, runner)); - } - case kWindowAggregation: { - if (support_cluster_optimized_) { - // Non-support table window aggregation join under distribution env - status.msg = - "fail to build cluster with window agg project"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto op = dynamic_cast(node); - WindowAggRunner* runner = CreateRunner( - id_++, op->schemas_ctx(), op->GetLimitCnt(), op->window_, op->project().fn_info(), - op->instance_not_in_window(), op->exclude_current_time(), - op->need_append_input() ? node->GetProducer(0)->schemas_ctx()->GetSchemaSourceSize() : 0); - size_t input_slices = input->output_schemas()->GetSchemaSourceSize(); - if (!op->window_unions_.Empty()) { - for (auto window_union : - op->window_unions_.window_unions_) { - auto union_task = Build(window_union.first, status); - auto union_table = union_task.GetRoot(); - if (nullptr == union_table) { - return RegisterTask(node, fail); - } - runner->AddWindowUnion(window_union.second, - union_table); - } - } - if (!op->window_joins_.Empty()) { - for (auto& window_join : - op->window_joins_.window_joins_) { - auto join_task = // NOLINT - Build(window_join.first, status); - auto join_right_runner = join_task.GetRoot(); - if (nullptr == join_right_runner) { - return RegisterTask(node, fail); - } - runner->AddWindowJoin(window_join.second, - input_slices, - join_right_runner); - } - } - return RegisterTask(node, - UnaryInheritTask(cluster_task, runner)); - } - case kRowProject: { - RowProjectRunner* runner = CreateRunner( - id_++, node->schemas_ctx(), op->GetLimitCnt(), op->project().fn_info()); - return RegisterTask(node, - UnaryInheritTask(cluster_task, runner)); - } - default: { - status.msg = "fail to support project type " + - ProjectTypeName(op->project_type_); - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return RegisterTask(node, fail); - } - } - } - case kPhysicalOpRequestUnion: { - auto left_task = Build(node->producers().at(0), status); - if (!left_task.IsValid()) { - status.msg = "fail to build left input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto right_task = Build(node->producers().at(1), status); - auto right = right_task.GetRoot(); - if (!right_task.IsValid()) { - status.msg = "fail to build right input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto op = dynamic_cast(node); - RequestUnionRunner* runner = - CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->window().range_, - op->exclude_current_time(), op->output_request_row()); - Key index_key; - if (!op->instance_not_in_window()) { - runner->AddWindowUnion(op->window_, right); - index_key = op->window_.index_key_; - } - if (!op->window_unions_.Empty()) { - for (auto window_union : op->window_unions_.window_unions_) { - auto union_task = Build(window_union.first, status); - if (!status.isOK()) { - LOG(WARNING) << status; - return fail; - } - auto union_table = union_task.GetRoot(); - if (nullptr == union_table) { - return RegisterTask(node, fail); - } - runner->AddWindowUnion(window_union.second, union_table); - if (!index_key.ValidKey()) { - index_key = window_union.second.index_key_; - right_task = union_task; - right_task.SetRoot(right); - } - } - } - if (support_cluster_optimized_) { - if (IsPartitionProvider(node->GetProducer(0))) { - // route by index of the left source, and it should uncompleted - auto& route_info = left_task.GetRouteInfo(); - runner->AddProducer(left_task.GetRoot()); - runner->AddProducer(right_task.GetRoot()); - return RegisterTask(node, - UnCompletedClusterTask(runner, route_info.table_handler_, route_info.index_)); - } - } - return RegisterTask( - node, BinaryInherit(left_task, right_task, runner, index_key, - kRightBias)); - } - case kPhysicalOpRequestAggUnion: { - return BuildRequestAggUnionTask(node, status); - } - case kPhysicalOpRequestJoin: { - auto left_task = Build(node->GetProducer(0), status); - if (!left_task.IsValid()) { - status.msg = "fail to build left input runner for: " + node->GetProducer(0)->GetTreeString(); - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto left = left_task.GetRoot(); - auto right_task = Build(node->GetProducer(1), status); - if (!right_task.IsValid()) { - status.msg = "fail to build right input runner for: " + node->GetProducer(1)->GetTreeString(); - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto right = right_task.GetRoot(); - auto op = dynamic_cast(node); - switch (op->join().join_type()) { - case node::kJoinTypeLast: { - RequestLastJoinRunner* runner = CreateRunner( - id_++, node->schemas_ctx(), op->GetLimitCnt(), op->join_, - left->output_schemas()->GetSchemaSourceSize(), right->output_schemas()->GetSchemaSourceSize(), - op->output_right_only()); - - if (support_cluster_optimized_) { - if (IsPartitionProvider(node->GetProducer(0))) { - // Partion left join partition, route by index of the left source, and it should uncompleted - auto& route_info = left_task.GetRouteInfo(); - runner->AddProducer(left_task.GetRoot()); - runner->AddProducer(right_task.GetRoot()); - return RegisterTask( - node, UnCompletedClusterTask(runner, route_info.table_handler_, route_info.index_)); - } - - if (right_task.IsCompletedClusterTask() && right_task.GetRouteInfo().lazy_route_ && - !op->join_.index_key_.ValidKey()) { - // join (.., filter) - auto& route_info = right_task.GetRouteInfo(); - runner->AddProducer(left_task.GetRoot()); - runner->AddProducer(right_task.GetRoot()); - return RegisterTask(node, ClusterTask(runner, {}, route_info)); - } - } - - return RegisterTask( - node, BinaryInherit(left_task, right_task, runner, op->join().index_key(), kLeftBias)); - } - case node::kJoinTypeConcat: { - ConcatRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt()); - if (support_cluster_optimized_) { - if (right_task.IsCompletedClusterTask() && right_task.GetRouteInfo().lazy_route_ && - !op->join_.index_key_.ValidKey()) { - // concat join (.., filter) - runner->AddProducer(left_task.GetRoot()); - runner->AddProducer(right_task.GetRoot()); - return RegisterTask(node, ClusterTask(runner, {}, RouteInfo{})); - } - - // concat join (any(tx), any(tx)), tx is not request table - auto left = request_node(node->GetProducer(0)); - // auto right = request_node(node->GetProducer(1)); - if (left->provider_type_ == kProviderTypePartition) { - runner->AddProducer(left_task.GetRoot()); - runner->AddProducer(right_task.GetRoot()); - return RegisterTask(node, ClusterTask(runner, {}, left_task.GetRouteInfo())); - } - } - return RegisterTask(node, BinaryInherit(left_task, right_task, runner, Key(), kNoBias)); - } - default: { - status.code = common::kExecutionPlanError; - status.msg = "can't handle join type " + - node::JoinTypeName(op->join().join_type()); - LOG(WARNING) << status; - return RegisterTask(node, fail); - } - } - } - case kPhysicalOpJoin: { - auto left_task = Build(node->producers().at(0), status); - if (!left_task.IsValid()) { - status.msg = "fail to build left input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto left = left_task.GetRoot(); - auto right_task = Build(node->producers().at(1), status); - if (!right_task.IsValid()) { - status.msg = "fail to build right input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto right = right_task.GetRoot(); - auto op = dynamic_cast(node); - switch (op->join().join_type()) { - case node::kJoinTypeLast: { - // TableLastJoin convert to - // Batch Request RequestLastJoin - if (support_cluster_optimized_) { - RequestLastJoinRunner* runner = CreateRunner( - id_++, node->schemas_ctx(), op->GetLimitCnt(), op->join_, - left->output_schemas()->GetSchemaSourceSize(), - right->output_schemas()->GetSchemaSourceSize(), op->output_right_only_); - return RegisterTask( - node, - BinaryInherit(left_task, right_task, runner, - op->join().index_key(), kLeftBias)); - } else { - LastJoinRunner* runner = - CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->join_, - left->output_schemas()->GetSchemaSourceSize(), - right->output_schemas()->GetSchemaSourceSize()); - return RegisterTask( - node, BinaryInherit(left_task, right_task, runner, - Key(), kLeftBias)); - } - } - case node::kJoinTypeConcat: { - ConcatRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt()); - return RegisterTask( - node, BinaryInherit(left_task, right_task, runner, - op->join().index_key(), kNoBias)); - } - default: { - status.code = common::kExecutionPlanError; - status.msg = "can't handle join type " + - node::JoinTypeName(op->join().join_type()); - LOG(WARNING) << status; - return RegisterTask(node, fail); - } - } - } - case kPhysicalOpGroupBy: { - if (support_cluster_optimized_) { - // Non-support group by under distribution env - status.msg = "fail to build cluster with group by node"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto cluster_task = Build(node->producers().at(0), status); - if (!cluster_task.IsValid()) { - status.msg = "fail to build input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto op = dynamic_cast(node); - GroupRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->group()); - return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); - } - case kPhysicalOpFilter: { - auto producer_task = Build(node->GetProducer(0), status); - if (!producer_task.IsValid()) { - status.msg = "fail to build input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto op = dynamic_cast(node); - FilterRunner* runner = - CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->filter_); - // under cluster, filter task might be completed or uncompleted - // based on whether filter node has the index_key underlaying DataTask requires - ClusterTask out; - if (support_cluster_optimized_) { - auto& route_info_ref = producer_task.GetRouteInfo(); - if (runner->filter_gen_.ValidIndex()) { - // complete the route info - RouteInfo lazy_route_info(route_info_ref.index_, op->filter().index_key(), - std::make_shared(producer_task), - route_info_ref.table_handler_); - lazy_route_info.lazy_route_ = true; - runner->AddProducer(producer_task.GetRoot()); - out = ClusterTask(runner, {}, lazy_route_info); - } else { - runner->AddProducer(producer_task.GetRoot()); - out = UnCompletedClusterTask(runner, route_info_ref.table_handler_, route_info_ref.index_); - } - } else { - out = UnaryInheritTask(producer_task, runner); - } - return RegisterTask(node, out); - } - case kPhysicalOpLimit: { - auto cluster_task = // NOLINT - Build(node->producers().at(0), status); - if (!cluster_task.IsValid()) { - status.msg = "fail to build input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto op = dynamic_cast(node); - if (!op->GetLimitCnt().has_value() || op->GetLimitOptimized()) { - return RegisterTask(node, cluster_task); - } - // limit runner always expect limit not empty - LimitRunner* runner = - CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt().value()); - return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); - } - case kPhysicalOpRename: { - return Build(node->producers().at(0), status); - } - case kPhysicalOpPostRequestUnion: { - auto left_task = Build(node->producers().at(0), status); - if (!left_task.IsValid()) { - status.msg = "fail to build left input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto right_task = Build(node->producers().at(1), status); - if (!right_task.IsValid()) { - status.msg = "fail to build right input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto union_op = dynamic_cast(node); - PostRequestUnionRunner* runner = - CreateRunner(id_++, node->schemas_ctx(), union_op->request_ts()); - return RegisterTask(node, BinaryInherit(left_task, right_task, - runner, Key(), kRightBias)); - } - default: { - status.code = common::kExecutionPlanError; - status.msg = absl::StrCat("Non-support node ", PhysicalOpTypeName(node->GetOpType()), - " for OpenMLDB Online execute mode"); - LOG(WARNING) << status; - return RegisterTask(node, fail); - } - } -} - -ClusterTask RunnerBuilder::BuildRequestAggUnionTask(PhysicalOpNode* node, Status& status) { - auto fail = InvalidTask(); - auto request_task = Build(node->producers().at(0), status); - if (!request_task.IsValid()) { - status.msg = "fail to build request input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto base_table_task = Build(node->producers().at(1), status); - auto base_table = base_table_task.GetRoot(); - if (!base_table_task.IsValid()) { - status.msg = "fail to build base_table input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto agg_table_task = Build(node->producers().at(2), status); - auto agg_table = agg_table_task.GetRoot(); - if (!agg_table_task.IsValid()) { - status.msg = "fail to build agg_table input runner"; - status.code = common::kExecutionPlanError; - LOG(WARNING) << status; - return fail; - } - auto op = dynamic_cast(node); - RequestAggUnionRunner* runner = - CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->window().range_, - op->exclude_current_time(), op->output_request_row(), op->project_); - Key index_key; - if (!op->instance_not_in_window()) { - index_key = op->window_.index_key(); - runner->AddWindowUnion(op->window_, base_table); - runner->AddWindowUnion(op->agg_window_, agg_table); - } - auto task = RegisterTask(node, MultipleInherit({&request_task, &base_table_task, &agg_table_task}, runner, - index_key, kRightBias)); - if (!runner->InitAggregator()) { - return fail; - } else { - return task; - } -} - -ClusterTask RunnerBuilder::BinaryInherit(const ClusterTask& left, - const ClusterTask& right, - Runner* runner, const Key& index_key, - const TaskBiasType bias) { - if (support_cluster_optimized_) { - return BuildClusterTaskForBinaryRunner(left, right, runner, index_key, - bias); - } else { - return BuildLocalTaskForBinaryRunner(left, right, runner); - } -} - -ClusterTask RunnerBuilder::MultipleInherit(const std::vector& children, - Runner* runner, const Key& index_key, - const TaskBiasType bias) { - // TODO(zhanghao): currently only kRunnerRequestAggUnion uses MultipleInherit - const ClusterTask* request = children[0]; - if (runner->type_ != kRunnerRequestAggUnion) { - LOG(WARNING) << "MultipleInherit only support RequestAggUnionRunner"; - return ClusterTask(); - } - - if (children.size() < 3) { - LOG(WARNING) << "MultipleInherit should be called for children size >= 3, but children.size() = " - << children.size(); - return ClusterTask(); - } - - for (const auto child : children) { - if (child->IsClusterTask()) { - if (index_key.ValidKey()) { - for (size_t i = 1; i < children.size(); i++) { - if (!children[i]->IsClusterTask()) { - LOG(WARNING) << "Fail to build cluster task for " - << "[" << runner->id_ << "]" << RunnerTypeName(runner->type_) - << ": can't handler local task with index key"; - return ClusterTask(); - } - if (children[i]->IsCompletedClusterTask()) { - LOG(WARNING) << "Fail to complete cluster task for " - << "[" << runner->id_ << "]" << RunnerTypeName(runner->type_) - << ": task is completed already"; - return ClusterTask(); - } - } - for (size_t i = 0; i < children.size(); i++) { - runner->AddProducer(children[i]->GetRoot()); - } - // build complete cluster task - // TODO(zhanghao): assume all children can be handled with one single tablet - const RouteInfo& route_info = children[1]->GetRouteInfo(); - ClusterTask cluster_task(runner, std::vector({runner}), - RouteInfo(route_info.index_, index_key, - std::make_shared(*request), route_info.table_handler_)); - return cluster_task; - } - } - } - - // if all are local tasks - for (const auto child : children) { - runner->AddProducer(child->GetRoot()); - } - return ClusterTask(runner); -} - -ClusterTask RunnerBuilder::BuildLocalTaskForBinaryRunner( - const ClusterTask& left, const ClusterTask& right, Runner* runner) { - if (left.IsClusterTask() || right.IsClusterTask()) { - LOG(WARNING) << "fail to build local task for binary runner"; - return ClusterTask(); - } - runner->AddProducer(left.GetRoot()); - runner->AddProducer(right.GetRoot()); - return ClusterTask(runner); -} -ClusterTask RunnerBuilder::BuildClusterTaskForBinaryRunner( - const ClusterTask& left, const ClusterTask& right, Runner* runner, - const Key& index_key, const TaskBiasType bias) { - if (nullptr == runner) { - LOG(WARNING) << "Fail to build cluster task for null runner"; - return ClusterTask(); - } - ClusterTask new_left = left; - ClusterTask new_right = right; - - // if index key is valid, try to complete route info of right cluster task - if (index_key.ValidKey()) { - if (!right.IsClusterTask()) { - LOG(WARNING) << "Fail to build cluster task for " - << "[" << runner->id_ << "]" - << RunnerTypeName(runner->type_) - << ": can't handler local task with index key"; - return ClusterTask(); - } - if (right.IsCompletedClusterTask()) { - // completed with same index key - std::stringstream ss; - right.Print(ss, " "); - LOG(WARNING) << "Fail to complete cluster task for " - << "[" << runner->id_ << "]" << RunnerTypeName(runner->type_) - << ": task is completed already:\n" - << ss.str(); - LOG(WARNING) << "index key is " << index_key.ToString(); - return ClusterTask(); - } - RequestRunner* request_runner = CreateRunner(id_++, new_left.GetRoot()->output_schemas()); - runner->AddProducer(request_runner); - runner->AddProducer(new_right.GetRoot()); - - const RouteInfo& right_route_info = new_right.GetRouteInfo(); - ClusterTask cluster_task(runner, std::vector({runner}), - RouteInfo(right_route_info.index_, index_key, std::make_shared(new_left), - right_route_info.table_handler_)); - - if (new_left.IsCompletedClusterTask()) { - return BuildProxyRunnerForClusterTask(cluster_task); - } else { - return cluster_task; - } - } - - // Concat - // Agg1(Proxy(RequestUnion(Request, DATA)) - // Agg2(Proxy(RequestUnion(Request, DATA)) - // --> - // Proxy(Concat - // Agg1(RequestUnion(Request,DATA) - // Agg2(RequestUnion(Request,DATA) - // ) - - // if left and right is completed cluster task - while (new_left.IsCompletedClusterTask() && - new_right.IsCompletedClusterTask()) { - // merge left and right task if tasks can be merged - if (ClusterTask::TaskCanBeMerge(new_left, new_right)) { - ClusterTask task = ClusterTask::TaskMerge(runner, new_left, new_right); - runner->AddProducer(new_left.GetRoot()); - runner->AddProducer(new_right.GetRoot()); - return task; - } - switch (bias) { - case kNoBias: { - // Add build left proxy task into cluster job, - // and update new_left - new_left = BuildProxyRunnerForClusterTask(new_left); - new_right = BuildProxyRunnerForClusterTask(new_right); - break; - } - case kLeftBias: { - // build proxy runner for right task - new_right = BuildProxyRunnerForClusterTask(new_right); - break; - } - case kRightBias: { - // build proxy runner for right task - new_left = BuildProxyRunnerForClusterTask(new_left); - break; - } - } - } - if (new_left.IsUnCompletedClusterTask()) { - LOG(WARNING) << "can't handler uncompleted cluster task from left:" << new_left; - return ClusterTask(); - } - if (new_right.IsUnCompletedClusterTask()) { - LOG(WARNING) << "can't handler uncompleted cluster task from right:" << new_right; - return ClusterTask(); - } - - // prepare left and right for runner - - // left local task + right cluster task - if (new_right.IsCompletedClusterTask()) { - switch (bias) { - case kNoBias: - case kLeftBias: { - new_right = BuildProxyRunnerForClusterTask(new_right); - runner->AddProducer(new_left.GetRoot()); - runner->AddProducer(new_right.GetRoot()); - return ClusterTask::TaskMergeToLeft(runner, new_left, - new_right); - } - case kRightBias: { - auto new_left_root_input = - ClusterTask::GetRequestInput(new_left); - auto new_right_root_input = - ClusterTask::GetRequestInput(new_right); - // task can be merge simply when their inputs are the same - if (new_right_root_input == new_left_root_input) { - runner->AddProducer(new_left.GetRoot()); - runner->AddProducer(new_right.GetRoot()); - return ClusterTask::TaskMergeToRight(runner, new_left, - new_right); - } else if (new_left_root_input == nullptr) { - // reset replace inputs as request runner - new_right.ResetInputs(nullptr); - runner->AddProducer(new_left.GetRoot()); - runner->AddProducer(new_right.GetRoot()); - return ClusterTask::TaskMergeToRight(runner, new_left, - new_right); - } else { - LOG(WARNING) << "fail to merge local left task and cluster " - "right task"; - return ClusterTask(); - } - } - default: - return ClusterTask(); - } - } else if (new_left.IsCompletedClusterTask()) { - switch (bias) { - case kNoBias: - case kRightBias: { - new_left = BuildProxyRunnerForClusterTask(new_left); - runner->AddProducer(new_left.GetRoot()); - runner->AddProducer(new_right.GetRoot()); - return ClusterTask::TaskMergeToRight(runner, new_left, - new_right); - } - case kLeftBias: { - auto new_left_root_input = - ClusterTask::GetRequestInput(new_right); - auto new_right_root_input = - ClusterTask::GetRequestInput(new_right); - // task can be merge simply - if (new_right_root_input == new_left_root_input) { - runner->AddProducer(new_left.GetRoot()); - runner->AddProducer(new_right.GetRoot()); - return ClusterTask::TaskMergeToLeft(runner, new_left, - new_right); - } else if (new_right_root_input == nullptr) { - // reset replace inputs as request runner - new_left.ResetInputs(nullptr); - runner->AddProducer(new_left.GetRoot()); - runner->AddProducer(new_right.GetRoot()); - return ClusterTask::TaskMergeToLeft(runner, new_left, - new_right); - } else { - LOG(WARNING) << "fail to merge cluster left task and local " - "right task"; - return ClusterTask(); - } - } - default: - return ClusterTask(); - } - } else { - runner->AddProducer(new_left.GetRoot()); - runner->AddProducer(new_right.GetRoot()); - return ClusterTask::TaskMergeToLeft(runner, new_left, new_right); - } -} -ClusterTask RunnerBuilder::BuildProxyRunnerForClusterTask( - const ClusterTask& task) { - if (!task.IsCompletedClusterTask()) { - LOG(WARNING) - << "Fail to build proxy runner, cluster task is uncompleted"; - return ClusterTask(); - } - // return cached proxy runner - Runner* proxy_runner = nullptr; - auto find_iter = proxy_runner_map_.find(task.GetRoot()); - if (find_iter != proxy_runner_map_.cend()) { - proxy_runner = find_iter->second; - proxy_runner->EnableCache(); - } else { - uint32_t remote_task_id = cluster_job_.AddTask(task); - ProxyRequestRunner* new_proxy_runner = CreateRunner( - id_++, remote_task_id, task.GetIndexKeyInput(), task.GetRoot()->output_schemas()); - if (nullptr != task.GetIndexKeyInput()) { - task.GetIndexKeyInput()->EnableCache(); - } - if (task.GetRoot()->need_batch_cache()) { - new_proxy_runner->EnableBatchCache(); - } - proxy_runner_map_.insert( - std::make_pair(task.GetRoot(), new_proxy_runner)); - proxy_runner = new_proxy_runner; - } - - if (task.GetInput()) { - return UnaryInheritTask(*task.GetInput(), proxy_runner); - } else { - return UnaryInheritTask(*request_task_, proxy_runner); - } - LOG(WARNING) << "Fail to build proxy runner for cluster job"; - return ClusterTask(); -} -ClusterTask RunnerBuilder::UnCompletedClusterTask( - Runner* runner, const std::shared_ptr table_handler, - std::string index) { - return ClusterTask(runner, table_handler, index); -} -ClusterTask RunnerBuilder::BuildRequestTask(RequestRunner* runner) { - if (nullptr == runner) { - LOG(WARNING) << "fail to build request task with null runner"; - return ClusterTask(); - } - ClusterTask request_task(runner); - request_task_ = std::make_shared(request_task); - return request_task; -} -ClusterTask RunnerBuilder::UnaryInheritTask(const ClusterTask& input, - Runner* runner) { - ClusterTask task = input; - runner->AddProducer(task.GetRoot()); - task.SetRoot(runner); - return task; -} - bool Runner::GetColumnBool(const int8_t* buf, const RowView* row_view, int idx, type::Type type) { bool key = false; @@ -1605,7 +696,7 @@ void WindowAggRunner::RunWindowAggOnKey( } } -std::shared_ptr RequestLastJoinRunner::Run( +std::shared_ptr RequestJoinRunner::Run( RunnerContext& ctx, const std::vector>& inputs) { // NOLINT auto fail_ptr = std::shared_ptr(); @@ -1622,24 +713,31 @@ std::shared_ptr RequestLastJoinRunner::Run( // row last join table, compute in place auto left_row = std::dynamic_pointer_cast(left)->GetValue(); auto& parameter = ctx.GetParameterRow(); - if (output_right_only_) { - return std::shared_ptr( - new MemRowHandler(join_gen_->RowLastJoinDropLeftSlices(left_row, right, parameter))); + if (join_gen_->join_type_ == node::kJoinTypeLast) { + if (output_right_only_) { + return std::shared_ptr( + new MemRowHandler(join_gen_->RowLastJoinDropLeftSlices(left_row, right, parameter))); + } else { + return std::shared_ptr( + new MemRowHandler(join_gen_->RowLastJoin(left_row, right, parameter))); + } + } else if (join_gen_->join_type_ == node::kJoinTypeLeft) { + return join_gen_->LazyJoin(left, right, ctx.GetParameterRow()); } else { - return std::shared_ptr(new MemRowHandler(join_gen_->RowLastJoin(left_row, right, parameter))); + LOG(WARNING) << "unsupport join type " << node::JoinTypeName(join_gen_->join_type_); + return {}; } } else if (kPartitionHandler == left->GetHandlerType() && right->GetHandlerType() == kPartitionHandler) { auto left_part = std::dynamic_pointer_cast(left); - return join_gen_->LazyLastJoin(left_part, std::dynamic_pointer_cast(right), - ctx.GetParameterRow()); + auto right_part = std::dynamic_pointer_cast(right); + return join_gen_->LazyJoinOptimized(left_part, right_part, ctx.GetParameterRow()); + } else { + return join_gen_->LazyJoin(left, right, ctx.GetParameterRow()); } - - LOG(WARNING) << "skip due to performance: left source of request join is table handler (unoptimized)"; - return std::shared_ptr(); } -std::shared_ptr LastJoinRunner::Run(RunnerContext& ctx, - const std::vector>& inputs) { +std::shared_ptr JoinRunner::Run(RunnerContext& ctx, + const std::vector>& inputs) { auto fail_ptr = std::shared_ptr(); if (inputs.size() < 2) { LOG(WARNING) << "inputs size < 2"; @@ -1657,6 +755,10 @@ std::shared_ptr LastJoinRunner::Run(RunnerContext& ctx, } auto ¶meter = ctx.GetParameterRow(); + if (join_gen_->join_type_ == node::kJoinTypeLeft) { + return join_gen_->LazyJoin(left, right, parameter); + } + switch (left->GetHandlerType()) { case kTableHandler: { if (join_gen_->right_group_gen_.Valid()) { @@ -3425,29 +2527,6 @@ Row Runner::GroupbyProject(const int8_t* fn, const codec::Row& parameter, TableH base::RefCountedSlice::CreateManaged(buf, RowView::GetSize(buf))); } -std::vector> InputsGenerator::RunInputs( - RunnerContext& ctx) { - std::vector> union_inputs; - for (auto runner : input_runners_) { - union_inputs.push_back(runner->RunWithCache(ctx)); - } - return union_inputs; -} -std::vector> -WindowUnionGenerator::PartitionEach( - std::vector> union_inputs, - const Row& parameter) { - std::vector> union_partitions; - if (!windows_gen_.empty()) { - union_partitions.reserve(windows_gen_.size()); - for (size_t i = 0; i < inputs_cnt_; i++) { - union_partitions.push_back( - windows_gen_[i].partition_gen_.Partition(union_inputs[i], parameter)); - } - } - return union_partitions; -} - int32_t IteratorStatus::FindLastIteratorWithMininumKey(const std::vector& status_list) { int32_t min_union_pos = -1; std::optional min_union_order; @@ -3478,62 +2557,5 @@ int32_t IteratorStatus::FindFirstIteratorWithMaximizeKey(const std::vector> WindowJoinGenerator::RunInputs( - RunnerContext& ctx) { - std::vector> union_inputs; - if (!input_runners_.empty()) { - for (auto runner : input_runners_) { - union_inputs.push_back(runner->RunWithCache(ctx)); - } - } - return union_inputs; -} -Row WindowJoinGenerator::Join( - const Row& left_row, - const std::vector>& join_right_tables, - const Row& parameter) { - Row row = left_row; - for (size_t i = 0; i < join_right_tables.size(); i++) { - row = joins_gen_[i]->RowLastJoin(row, join_right_tables[i], parameter); - } - return row; -} - -std::shared_ptr RunnerContext::GetBatchCache( - int64_t id) const { - auto iter = batch_cache_.find(id); - if (iter == batch_cache_.end()) { - return std::shared_ptr(); - } else { - return iter->second; - } -} - -void RunnerContext::SetBatchCache(int64_t id, - std::shared_ptr data) { - batch_cache_[id] = data; -} - -std::shared_ptr RunnerContext::GetCache(int64_t id) const { - auto iter = cache_.find(id); - if (iter == cache_.end()) { - return std::shared_ptr(); - } else { - return iter->second; - } -} - -void RunnerContext::SetCache(int64_t id, - const std::shared_ptr data) { - cache_[id] = data; -} - -void RunnerContext::SetRequest(const hybridse::codec::Row& request) { - request_ = request; -} -void RunnerContext::SetRequests( - const std::vector& requests) { - requests_ = requests; -} } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/runner.h b/hybridse/src/vm/runner.h index a9d135b5e33..b40130db812 100644 --- a/hybridse/src/vm/runner.h +++ b/hybridse/src/vm/runner.h @@ -17,19 +17,15 @@ #ifndef HYBRIDSE_SRC_VM_RUNNER_H_ #define HYBRIDSE_SRC_VM_RUNNER_H_ -#include #include #include #include -#include -#include #include #include "absl/container/flat_hash_map.h" #include "absl/status/statusor.h" #include "base/fe_status.h" #include "codec/fe_row_codec.h" -#include "node/node_manager.h" #include "vm/aggregator.h" #include "vm/catalog.h" #include "vm/core_api.h" @@ -72,10 +68,10 @@ enum RunnerType { kRunnerRequestAggUnion, kRunnerPostRequestUnion, kRunnerIndexSeek, - kRunnerLastJoin, + kRunnerJoin, kRunnerConcat, kRunnerRequestRunProxy, - kRunnerRequestLastJoin, + kRunnerRequestJoin, kRunnerBatchRequestRunProxy, kRunnerLimit, kRunnerUnknow, @@ -118,12 +114,12 @@ inline const std::string RunnerTypeName(const RunnerType& type) { return "POST_REQUEST_UNION"; case kRunnerIndexSeek: return "INDEX_SEEK"; - case kRunnerLastJoin: - return "LASTJOIN"; + case kRunnerJoin: + return "JOIN"; case kRunnerConcat: return "CONCAT"; - case kRunnerRequestLastJoin: - return "REQUEST_LASTJOIN"; + case kRunnerRequestJoin: + return "REQUEST_JOIN"; case kRunnerLimit: return "LIMIT"; case kRunnerRequestRunProxy: @@ -324,80 +320,6 @@ class IteratorStatus { uint64_t key_; }; // namespace vm -class InputsGenerator { - public: - InputsGenerator() : inputs_cnt_(0), input_runners_() {} - virtual ~InputsGenerator() {} - - std::vector> RunInputs( - RunnerContext& ctx); // NOLINT - const bool Valid() const { return 0 != inputs_cnt_; } - void AddInput(Runner* runner) { - input_runners_.push_back(runner); - inputs_cnt_++; - } - size_t inputs_cnt_; - std::vector input_runners_; -}; -class WindowUnionGenerator : public InputsGenerator { - public: - WindowUnionGenerator() : InputsGenerator() {} - virtual ~WindowUnionGenerator() {} - std::vector> PartitionEach( - std::vector> union_inputs, - const Row& parameter); - void AddWindowUnion(const WindowOp& window_op, Runner* runner) { - windows_gen_.push_back(WindowGenerator(window_op)); - AddInput(runner); - } - std::vector windows_gen_; -}; - -class RequestWindowUnionGenerator : public InputsGenerator, - public std::enable_shared_from_this { - public: - [[nodiscard]] static std::shared_ptr Create() { - return std::shared_ptr(new RequestWindowUnionGenerator()); - } - virtual ~RequestWindowUnionGenerator() {} - - void AddWindowUnion(const RequestWindowOp& window_op, Runner* runner) { - windows_gen_.emplace_back(window_op); - AddInput(runner); - } - - std::vector> GetRequestWindows( - const Row& row, const Row& parameter, std::vector> union_inputs) { - std::vector> union_segments(union_inputs.size()); - for (size_t i = 0; i < union_inputs.size(); i++) { - union_segments[i] = windows_gen_[i].GetRequestWindow(row, parameter, union_inputs[i]); - } - return union_segments; - } - std::vector windows_gen_; - - private: - RequestWindowUnionGenerator() : InputsGenerator() {} -}; - -class WindowJoinGenerator : public InputsGenerator { - public: - WindowJoinGenerator() : InputsGenerator() {} - virtual ~WindowJoinGenerator() {} - void AddWindowJoin(const Join& join, size_t left_slices, Runner* runner) { - size_t right_slices = runner->output_schemas()->GetSchemaSourceSize(); - joins_gen_.push_back(JoinGenerator::Create(join, left_slices, right_slices)); - AddInput(runner); - } - std::vector> RunInputs( - RunnerContext& ctx); // NOLINT - Row Join( - const Row& left_row, - const std::vector>& join_right_tables, - const Row& parameter); - std::vector> joins_gen_; -}; - class DataRunner : public Runner { public: DataRunner(const int32_t id, const SchemasContext* schema, @@ -777,14 +699,14 @@ class PostRequestUnionRunner : public Runner { OrderGenerator request_ts_gen_; }; -class LastJoinRunner : public Runner { +class JoinRunner : public Runner { public: - LastJoinRunner(const int32_t id, const SchemasContext* schema, const std::optional limit_cnt, - const Join& join, size_t left_slices, size_t right_slices) - : Runner(id, kRunnerLastJoin, schema, limit_cnt) { + JoinRunner(const int32_t id, const SchemasContext* schema, const std::optional limit_cnt, const Join& join, + size_t left_slices, size_t right_slices) + : Runner(id, kRunnerJoin, schema, limit_cnt) { join_gen_ = JoinGenerator::Create(join, left_slices, right_slices); } - ~LastJoinRunner() {} + ~JoinRunner() {} std::shared_ptr Run( RunnerContext& ctx, // NOLINT const std::vector>& inputs) @@ -792,15 +714,15 @@ class LastJoinRunner : public Runner { std::shared_ptr join_gen_; }; -class RequestLastJoinRunner : public Runner { +class RequestJoinRunner : public Runner { public: - RequestLastJoinRunner(const int32_t id, const SchemasContext* schema, const std::optional limit_cnt, - const Join& join, const size_t left_slices, const size_t right_slices, - const bool output_right_only) - : Runner(id, kRunnerRequestLastJoin, schema, limit_cnt), output_right_only_(output_right_only) { + RequestJoinRunner(const int32_t id, const SchemasContext* schema, const std::optional limit_cnt, + const Join& join, const size_t left_slices, const size_t right_slices, + const bool output_right_only) + : Runner(id, kRunnerRequestJoin, schema, limit_cnt), output_right_only_(output_right_only) { join_gen_ = JoinGenerator::Create(join, left_slices, right_slices); } - ~RequestLastJoinRunner() {} + ~RequestJoinRunner() {} std::shared_ptr Run( RunnerContext& ctx, // NOLINT @@ -912,429 +834,6 @@ class ProxyRequestRunner : public Runner { uint32_t task_id_; Runner* index_input_; }; -class ClusterTask; -class RouteInfo { - public: - RouteInfo() - : index_(), - index_key_(), - index_key_input_runner_(nullptr), - input_(), - table_handler_() {} - RouteInfo(const std::string index, - std::shared_ptr table_handler) - : index_(index), - index_key_(), - index_key_input_runner_(nullptr), - input_(), - table_handler_(table_handler) {} - RouteInfo(const std::string index, const Key& index_key, - std::shared_ptr input, - std::shared_ptr table_handler) - : index_(index), - index_key_(index_key), - index_key_input_runner_(nullptr), - input_(input), - table_handler_(table_handler) {} - ~RouteInfo() {} - const bool IsCompleted() const { - return table_handler_ && !index_.empty() && index_key_.ValidKey(); - } - const bool IsCluster() const { return table_handler_ && !index_.empty(); } - static const bool EqualWith(const RouteInfo& info1, - const RouteInfo& info2) { - return info1.input_ == info2.input_ && - info1.table_handler_ == info2.table_handler_ && - info1.index_ == info2.index_ && - node::ExprEquals(info1.index_key_.keys_, info2.index_key_.keys_); - } - - const std::string ToString() const { - if (IsCompleted()) { - std::ostringstream oss; - if (lazy_route_) { - oss << "[LAZY]"; - } - oss << ", routing index = " << table_handler_->GetDatabase() << "." - << table_handler_->GetName() << "." << index_ << ", " - << index_key_.ToString(); - return oss.str(); - } else { - return ""; - } - } - std::string index_; - Key index_key_; - Runner* index_key_input_runner_; - std::shared_ptr input_; - std::shared_ptr table_handler_; - - // if true: generate the complete ClusterTask only when requires - bool lazy_route_ = false; -}; - -// task info of cluster job -// partitoin/index info -// index key generator -// request generator -class ClusterTask { - public: - // common tasks - ClusterTask() : root_(nullptr), input_runners_(), route_info_() {} - explicit ClusterTask(Runner* root) - : root_(root), input_runners_(), route_info_() {} - - // cluster task with explicit routeinfo - ClusterTask(Runner* root, const std::shared_ptr table_handler, - std::string index) - : root_(root), input_runners_(), route_info_(index, table_handler) {} - ClusterTask(Runner* root, const std::vector& input_runners, - const RouteInfo& route_info) - : root_(root), input_runners_(input_runners), route_info_(route_info) {} - ~ClusterTask() {} - - void Print(std::ostream& output, const std::string& tab) const { - output << route_info_.ToString() << "\n"; - if (nullptr == root_) { - output << tab << "NULL RUNNER\n"; - } else { - std::set visited_ids; - root_->Print(output, tab, &visited_ids); - } - } - - friend std::ostream& operator<<(std::ostream& os, const ClusterTask& output) { - output.Print(os, ""); - return os; - } - - void ResetInputs(std::shared_ptr input) { - for (auto input_runner : input_runners_) { - input_runner->SetProducer(0, route_info_.input_->GetRoot()); - } - route_info_.index_key_input_runner_ = route_info_.input_->GetRoot(); - route_info_.input_ = input; - } - Runner* GetRoot() const { return root_; } - void SetRoot(Runner* root) { root_ = root; } - Runner* GetInputRunner(size_t idx) const { - return idx >= input_runners_.size() ? nullptr : input_runners_[idx]; - } - Runner* GetIndexKeyInput() const { - return route_info_.index_key_input_runner_; - } - std::shared_ptr GetInput() const { return route_info_.input_; } - Key GetIndexKey() const { return route_info_.index_key_; } - void SetIndexKey(const Key& key) { route_info_.index_key_ = key; } - void SetInput(std::shared_ptr input) { - route_info_.input_ = input; - } - - const bool IsValid() const { return nullptr != root_; } - - const bool IsCompletedClusterTask() const { - return IsValid() && route_info_.IsCompleted(); - } - const bool IsUnCompletedClusterTask() const { - return IsClusterTask() && !route_info_.IsCompleted(); - } - const bool IsClusterTask() const { return route_info_.IsCluster(); } - const std::string& index() { return route_info_.index_; } - std::shared_ptr table_handler() { - return route_info_.table_handler_; - } - - // Cluster tasks with same input runners and index keys can be merged - static const bool TaskCanBeMerge(const ClusterTask& task1, - const ClusterTask& task2) { - return RouteInfo::EqualWith(task1.route_info_, task2.route_info_); - } - static const ClusterTask TaskMerge(Runner* root, const ClusterTask& task1, - const ClusterTask& task2) { - return TaskMergeToLeft(root, task1, task2); - } - static const ClusterTask TaskMergeToLeft(Runner* root, - const ClusterTask& task1, - const ClusterTask& task2) { - std::vector input_runners; - for (auto runner : task1.input_runners_) { - input_runners.push_back(runner); - } - for (auto runner : task2.input_runners_) { - input_runners.push_back(runner); - } - return ClusterTask(root, input_runners, task1.route_info_); - } - static const ClusterTask TaskMergeToRight(Runner* root, - const ClusterTask& task1, - const ClusterTask& task2) { - std::vector input_runners; - for (auto runner : task1.input_runners_) { - input_runners.push_back(runner); - } - for (auto runner : task2.input_runners_) { - input_runners.push_back(runner); - } - return ClusterTask(root, input_runners, task2.route_info_); - } - - static const Runner* GetRequestInput(const ClusterTask& task) { - if (!task.IsValid()) { - return nullptr; - } - auto input_task = task.GetInput(); - if (input_task) { - return input_task->GetRoot(); - } - return nullptr; - } - - const RouteInfo& GetRouteInfo() const { return route_info_; } - - protected: - Runner* root_; - std::vector input_runners_; - RouteInfo route_info_; -}; - -class ClusterJob { - public: - ClusterJob() - : tasks_(), main_task_id_(-1), sql_(""), common_column_indices_() {} - explicit ClusterJob(const std::string& sql, const std::string& db, - const std::set& common_column_indices) - : tasks_(), - main_task_id_(-1), - sql_(sql), - db_(db), - common_column_indices_(common_column_indices) {} - ClusterTask GetTask(int32_t id) { - if (id < 0 || id >= static_cast(tasks_.size())) { - LOG(WARNING) << "fail get task: task " << id << " not exist"; - return ClusterTask(); - } - return tasks_[id]; - } - - ClusterTask GetMainTask() { return GetTask(main_task_id_); } - int32_t AddTask(const ClusterTask& task) { - if (!task.IsValid()) { - LOG(WARNING) << "fail to add invalid task"; - return -1; - } - tasks_.push_back(task); - return tasks_.size() - 1; - } - bool AddRunnerToTask(Runner* runner, const int32_t id) { - if (id < 0 || id >= static_cast(tasks_.size())) { - LOG(WARNING) << "fail update task: task " << id << " not exist"; - return false; - } - runner->AddProducer(tasks_[id].GetRoot()); - tasks_[id].SetRoot(runner); - return true; - } - - void AddMainTask(const ClusterTask& task) { main_task_id_ = AddTask(task); } - void Reset() { tasks_.clear(); } - const size_t GetTaskSize() const { return tasks_.size(); } - const bool IsValid() const { return !tasks_.empty(); } - const int32_t main_task_id() const { return main_task_id_; } - const std::string& sql() const { return sql_; } - const std::string& db() const { return db_; } - void Print(std::ostream& output, const std::string& tab) const { - if (tasks_.empty()) { - output << "EMPTY CLUSTER JOB\n"; - return; - } - for (size_t i = 0; i < tasks_.size(); i++) { - if (main_task_id_ == static_cast(i)) { - output << "MAIN TASK ID " << i; - } else { - output << "TASK ID " << i; - } - tasks_[i].Print(output, tab); - output << "\n"; - } - } - const std::set& common_column_indices() const { - return common_column_indices_; - } - void Print() const { this->Print(std::cout, " "); } - - private: - std::vector tasks_; - int32_t main_task_id_; - std::string sql_; - std::string db_; - std::set common_column_indices_; -}; -class RunnerBuilder { - enum TaskBiasType { kLeftBias, kRightBias, kNoBias }; - - public: - explicit RunnerBuilder(node::NodeManager* nm, const std::string& sql, - const std::string& db, - bool support_cluster_optimized, - const std::set& common_column_indices, - const std::set& batch_common_node_set) - : nm_(nm), - support_cluster_optimized_(support_cluster_optimized), - id_(0), - cluster_job_(sql, db, common_column_indices), - task_map_(), - proxy_runner_map_(), - batch_common_node_set_(batch_common_node_set) {} - virtual ~RunnerBuilder() {} - ClusterTask RegisterTask(PhysicalOpNode* node, ClusterTask task) { - task_map_[node] = task; - if (batch_common_node_set_.find(node->node_id()) != - batch_common_node_set_.end()) { - task.GetRoot()->EnableBatchCache(); - } - return task; - } - ClusterTask Build(PhysicalOpNode* node, // NOLINT - Status& status); // NOLINT - ClusterJob BuildClusterJob(PhysicalOpNode* node, - Status& status) { // NOLINT - id_ = 0; - cluster_job_.Reset(); - auto task = Build(node, status); - if (!status.isOK()) { - return cluster_job_; - } - - if (task.IsCompletedClusterTask()) { - auto proxy_task = BuildProxyRunnerForClusterTask(task); - if (!proxy_task.IsValid()) { - status.code = common::kExecutionPlanError; - status.msg = "Fail to build proxy cluster task"; - LOG(WARNING) << status; - return cluster_job_; - } - cluster_job_.AddMainTask(proxy_task); - } else if (task.IsUnCompletedClusterTask()) { - status.code = common::kExecutionPlanError; - status.msg = - "Fail to build main task, can't handler " - "uncompleted cluster task"; - LOG(WARNING) << status; - return cluster_job_; - } else { - cluster_job_.AddMainTask(task); - } - return cluster_job_; - } - - template - Op* CreateRunner(Args&&... args) { - return nm_->MakeNode(std::forward(args)...); - } - - private: - node::NodeManager* nm_; - // only set for request mode - bool support_cluster_optimized_; - int32_t id_; - ClusterJob cluster_job_; - - std::unordered_map<::hybridse::vm::PhysicalOpNode*, - ::hybridse::vm::ClusterTask> - task_map_; - std::shared_ptr request_task_; - std::unordered_map - proxy_runner_map_; - std::set batch_common_node_set_; - ClusterTask MultipleInherit(const std::vector& children, Runner* runner, - const Key& index_key, const TaskBiasType bias); - ClusterTask BinaryInherit(const ClusterTask& left, const ClusterTask& right, - Runner* runner, const Key& index_key, - const TaskBiasType bias = kNoBias); - ClusterTask BuildLocalTaskForBinaryRunner(const ClusterTask& left, - const ClusterTask& right, - Runner* runner); - ClusterTask BuildClusterTaskForBinaryRunner(const ClusterTask& left, - const ClusterTask& right, - Runner* runner, - const Key& index_key, - const TaskBiasType bias); - ClusterTask BuildProxyRunnerForClusterTask(const ClusterTask& task); - ClusterTask InvalidTask() { return ClusterTask(); } - ClusterTask CommonTask(Runner* runner) { return ClusterTask(runner); } - ClusterTask UnCompletedClusterTask( - Runner* runner, const std::shared_ptr table_handler, - std::string index); - ClusterTask BuildRequestTask(RequestRunner* runner); - ClusterTask UnaryInheritTask(const ClusterTask& input, Runner* runner); - ClusterTask BuildRequestAggUnionTask(PhysicalOpNode* node, Status& status); // NOLINT -}; - -class RunnerContext { - public: - explicit RunnerContext(hybridse::vm::ClusterJob* cluster_job, - const hybridse::codec::Row& parameter, - const bool is_debug = false) - : cluster_job_(cluster_job), - sp_name_(""), - request_(), - requests_(), - parameter_(parameter), - is_debug_(is_debug), - batch_cache_() {} - explicit RunnerContext(hybridse::vm::ClusterJob* cluster_job, - const hybridse::codec::Row& request, - const std::string& sp_name = "", - const bool is_debug = false) - : cluster_job_(cluster_job), - sp_name_(sp_name), - request_(request), - requests_(), - parameter_(), - is_debug_(is_debug), - batch_cache_() {} - explicit RunnerContext(hybridse::vm::ClusterJob* cluster_job, - const std::vector& request_batch, - const std::string& sp_name = "", - const bool is_debug = false) - : cluster_job_(cluster_job), - sp_name_(sp_name), - request_(), - requests_(request_batch), - parameter_(), - is_debug_(is_debug), - batch_cache_() {} - - const size_t GetRequestSize() const { return requests_.size(); } - const hybridse::codec::Row& GetRequest() const { return request_; } - const hybridse::codec::Row& GetRequest(size_t idx) const { - return requests_[idx]; - } - const hybridse::codec::Row& GetParameterRow() const { return parameter_; } - hybridse::vm::ClusterJob* cluster_job() { return cluster_job_; } - void SetRequest(const hybridse::codec::Row& request); - void SetRequests(const std::vector& requests); - bool is_debug() const { return is_debug_; } - - const std::string& sp_name() { return sp_name_; } - std::shared_ptr GetCache(int64_t id) const; - void SetCache(int64_t id, std::shared_ptr data); - void ClearCache() { cache_.clear(); } - std::shared_ptr GetBatchCache(int64_t id) const; - void SetBatchCache(int64_t id, std::shared_ptr data); - - private: - hybridse::vm::ClusterJob* cluster_job_; - const std::string sp_name_; - hybridse::codec::Row request_; - std::vector requests_; - hybridse::codec::Row parameter_; - size_t idx_; - const bool is_debug_; - // TODO(chenjing): optimize - std::map> cache_; - std::map> batch_cache_; -}; } // namespace vm } // namespace hybridse diff --git a/hybridse/src/vm/runner_builder.cc b/hybridse/src/vm/runner_builder.cc new file mode 100644 index 00000000000..5d595ba9785 --- /dev/null +++ b/hybridse/src/vm/runner_builder.cc @@ -0,0 +1,909 @@ +/** + * Copyright (c) 2023 OpenMLDB authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "vm/runner_builder.h" +#include "vm/physical_op.h" + +namespace hybridse { +namespace vm { + +static vm::PhysicalDataProviderNode* request_node(vm::PhysicalOpNode* n) { + switch (n->GetOpType()) { + case kPhysicalOpDataProvider: + return dynamic_cast(n); + default: + return request_node(n->GetProducer(0)); + } +} + +// Build Runner for each physical node +// return cluster task of given runner +// +// DataRunner(kProviderTypePartition) --> cluster task +// RequestRunner --> local task +// DataRunner(kProviderTypeTable) --> LocalTask, Unsupport in distribute +// database +// +// SimpleProjectRunner --> inherit task +// TableProjectRunner --> inherit task +// WindowAggRunner --> LocalTask , Unsupport in distribute database +// GroupAggRunner --> LocalTask, Unsupport in distribute database +// +// RowProjectRunner --> inherit task +// ConstProjectRunner --> local task +// +// RequestUnionRunner +// --> complete route_info of right cluster task +// --> build proxy runner if need +// RequestJoinRunner +// --> complete route_info of right cluster task +// --> build proxy runner if need +// kPhysicalOpJoin +// --> kJoinTypeLast->RequestJoinRunner +// --> complete route_info of right cluster task +// --> build proxy runner if need +// --> kJoinTypeConcat +// --> build proxy runner if need +// kPhysicalOpPostRequestUnion +// --> build proxy runner if need +// GroupRunner --> LocalTask, Unsupport in distribute database +// kPhysicalOpFilter +// kPhysicalOpLimit +// kPhysicalOpRename +ClusterTask RunnerBuilder::Build(PhysicalOpNode* node, Status& status) { + auto fail = InvalidTask(); + if (nullptr == node) { + status.msg = "fail to build runner : physical node is null"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto iter = task_map_.find(node); + if (iter != task_map_.cend()) { + iter->second.GetRoot()->EnableCache(); + return iter->second; + } + switch (node->GetOpType()) { + case kPhysicalOpDataProvider: { + auto op = dynamic_cast(node); + switch (op->provider_type_) { + case kProviderTypeTable: { + auto provider = dynamic_cast(node); + DataRunner* runner = CreateRunner(id_++, node->schemas_ctx(), provider->table_handler_); + return RegisterTask(node, CommonTask(runner)); + } + case kProviderTypePartition: { + auto provider = dynamic_cast(node); + DataRunner* runner = CreateRunner( + id_++, node->schemas_ctx(), provider->table_handler_->GetPartition(provider->index_name_)); + if (support_cluster_optimized_) { + return RegisterTask( + node, UnCompletedClusterTask(runner, provider->table_handler_, provider->index_name_)); + } else { + return RegisterTask(node, CommonTask(runner)); + } + } + case kProviderTypeRequest: { + RequestRunner* runner = CreateRunner(id_++, node->schemas_ctx()); + return RegisterTask(node, BuildRequestTask(runner)); + } + default: { + status.msg = "fail to support data provider type " + DataProviderTypeName(op->provider_type_); + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return RegisterTask(node, fail); + } + } + } + case kPhysicalOpSimpleProject: { + auto cluster_task = Build(node->producers().at(0), status); + if (!cluster_task.IsValid()) { + status.msg = "fail to build input runner for simple project:\n" + node->GetTreeString(); + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto op = dynamic_cast(node); + int select_slice = op->GetSelectSourceIndex(); + if (select_slice >= 0) { + SelectSliceRunner* runner = + CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), select_slice); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } else { + SimpleProjectRunner* runner = CreateRunner( + id_++, node->schemas_ctx(), op->GetLimitCnt(), op->project().fn_info()); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + } + case kPhysicalOpConstProject: { + auto op = dynamic_cast(node); + ConstProjectRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), + op->project().fn_info()); + return RegisterTask(node, CommonTask(runner)); + } + case kPhysicalOpProject: { + auto cluster_task = // NOLINT + Build(node->producers().at(0), status); + if (!cluster_task.IsValid()) { + status.msg = "fail to build runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto input = cluster_task.GetRoot(); + auto op = dynamic_cast(node); + switch (op->project_type_) { + case kTableProject: { + if (support_cluster_optimized_) { + // Non-support table join under distribution env + status.msg = "fail to build cluster with table project"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + TableProjectRunner* runner = CreateRunner( + id_++, node->schemas_ctx(), op->GetLimitCnt(), op->project().fn_info()); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + case kReduceAggregation: { + ReduceRunner* runner = CreateRunner( + id_++, node->schemas_ctx(), op->GetLimitCnt(), + dynamic_cast(node)->having_condition_, + op->project().fn_info()); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + case kAggregation: { + auto agg_node = dynamic_cast(node); + if (agg_node == nullptr) { + status.msg = "fail to build AggRunner: input node is not PhysicalAggregationNode"; + status.code = common::kExecutionPlanError; + return fail; + } + AggRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), + agg_node->having_condition_, op->project().fn_info()); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + case kGroupAggregation: { + if (support_cluster_optimized_) { + // Non-support group aggregation under distribution env + status.msg = "fail to build cluster with group agg project"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto op = dynamic_cast(node); + GroupAggRunner* runner = + CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->group_, + op->having_condition_, op->project().fn_info()); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + case kWindowAggregation: { + if (support_cluster_optimized_) { + // Non-support table window aggregation join under distribution env + status.msg = "fail to build cluster with window agg project"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto op = dynamic_cast(node); + WindowAggRunner* runner = CreateRunner( + id_++, op->schemas_ctx(), op->GetLimitCnt(), op->window_, op->project().fn_info(), + op->instance_not_in_window(), op->exclude_current_time(), + op->need_append_input() ? node->GetProducer(0)->schemas_ctx()->GetSchemaSourceSize() : 0); + size_t input_slices = input->output_schemas()->GetSchemaSourceSize(); + if (!op->window_unions_.Empty()) { + for (auto window_union : op->window_unions_.window_unions_) { + auto union_task = Build(window_union.first, status); + auto union_table = union_task.GetRoot(); + if (nullptr == union_table) { + return RegisterTask(node, fail); + } + runner->AddWindowUnion(window_union.second, union_table); + } + } + if (!op->window_joins_.Empty()) { + for (auto& window_join : op->window_joins_.window_joins_) { + auto join_task = // NOLINT + Build(window_join.first, status); + auto join_right_runner = join_task.GetRoot(); + if (nullptr == join_right_runner) { + return RegisterTask(node, fail); + } + runner->AddWindowJoin(window_join.second, input_slices, join_right_runner); + } + } + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + case kRowProject: { + RowProjectRunner* runner = CreateRunner( + id_++, node->schemas_ctx(), op->GetLimitCnt(), op->project().fn_info()); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + default: { + status.msg = "fail to support project type " + ProjectTypeName(op->project_type_); + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return RegisterTask(node, fail); + } + } + } + case kPhysicalOpRequestUnion: { + auto left_task = Build(node->producers().at(0), status); + if (!left_task.IsValid()) { + status.msg = "fail to build left input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto right_task = Build(node->producers().at(1), status); + auto right = right_task.GetRoot(); + if (!right_task.IsValid()) { + status.msg = "fail to build right input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto op = dynamic_cast(node); + RequestUnionRunner* runner = + CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->window().range_, + op->exclude_current_time(), op->output_request_row()); + Key index_key; + if (!op->instance_not_in_window()) { + runner->AddWindowUnion(op->window_, right); + index_key = op->window_.index_key_; + } + if (!op->window_unions_.Empty()) { + for (auto window_union : op->window_unions_.window_unions_) { + auto union_task = Build(window_union.first, status); + if (!status.isOK()) { + LOG(WARNING) << status; + return fail; + } + auto union_table = union_task.GetRoot(); + if (nullptr == union_table) { + return RegisterTask(node, fail); + } + runner->AddWindowUnion(window_union.second, union_table); + if (!index_key.ValidKey()) { + index_key = window_union.second.index_key_; + right_task = union_task; + right_task.SetRoot(right); + } + } + } + if (support_cluster_optimized_) { + if (node->GetOutputType() == kSchemaTypeGroup) { + // route by index of the left source, and it should uncompleted + auto& route_info = left_task.GetRouteInfo(); + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, ClusterTask(runner, {}, route_info)); + } + } + return RegisterTask(node, BinaryInherit(left_task, right_task, runner, index_key, kRightBias)); + } + case kPhysicalOpRequestAggUnion: { + return BuildRequestAggUnionTask(node, status); + } + case kPhysicalOpRequestJoin: { + auto left_task = Build(node->GetProducer(0), status); + if (!left_task.IsValid()) { + status.msg = "fail to build left input runner for: " + node->GetProducer(0)->GetTreeString(); + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto left = left_task.GetRoot(); + auto right_task = Build(node->GetProducer(1), status); + if (!right_task.IsValid()) { + status.msg = "fail to build right input runner for: " + node->GetProducer(1)->GetTreeString(); + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto right = right_task.GetRoot(); + auto op = dynamic_cast(node); + switch (op->join().join_type()) { + case node::kJoinTypeLast: + case node::kJoinTypeLeft: { + RequestJoinRunner* runner = CreateRunner( + id_++, node->schemas_ctx(), op->GetLimitCnt(), op->join_, + left->output_schemas()->GetSchemaSourceSize(), right->output_schemas()->GetSchemaSourceSize(), + op->output_right_only()); + + if (support_cluster_optimized_) { + if (node->GetOutputType() == kSchemaTypeRow) { + // complete cluster task from right + if (op->join().index_key().ValidKey()) { + // optimize key in this node + return RegisterTask(node, BinaryInherit(left_task, right_task, runner, + op->join().index_key(), kLeftBias)); + } else { + // optimize happens before, in left node + auto right_route_info = right_task.GetRouteInfo(); + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, ClusterTask(runner, {}, right_route_info)); + } + } else { + // uncomplete/lazify cluster task from left + auto left_route_info = left_task.GetRouteInfo(); + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, ClusterTask(runner, {}, left_route_info)); + } + } + + return RegisterTask( + node, BinaryInherit(left_task, right_task, runner, op->join().index_key(), kLeftBias)); + } + case node::kJoinTypeConcat: { + ConcatRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt()); + if (support_cluster_optimized_) { + if (right_task.IsCompletedClusterTask() && right_task.GetRouteInfo().lazy_route_ && + !op->join_.index_key_.ValidKey()) { + // concat join (.., filter) + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, ClusterTask(runner, {}, RouteInfo{})); + } + + // concat join (any(tx), any(tx)), tx is not request table + if (node->GetOutputType() != kSchemaTypeRow) { + runner->AddProducer(left_task.GetRoot()); + runner->AddProducer(right_task.GetRoot()); + return RegisterTask(node, ClusterTask(runner, {}, left_task.GetRouteInfo())); + } + } + return RegisterTask(node, BinaryInherit(left_task, right_task, runner, Key(), kNoBias)); + } + default: { + status.code = common::kExecutionPlanError; + status.msg = "can't handle join type " + node::JoinTypeName(op->join().join_type()); + LOG(WARNING) << status; + return RegisterTask(node, fail); + } + } + } + case kPhysicalOpJoin: { + auto left_task = Build(node->producers().at(0), status); + if (!left_task.IsValid()) { + status.msg = "fail to build left input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto left = left_task.GetRoot(); + auto right_task = Build(node->producers().at(1), status); + if (!right_task.IsValid()) { + status.msg = "fail to build right input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto right = right_task.GetRoot(); + auto op = dynamic_cast(node); + switch (op->join().join_type()) { + case node::kJoinTypeLeft: + case node::kJoinTypeLast: { + // TableLastJoin convert to Batch Request RequestLastJoin + if (support_cluster_optimized_) { + // looks strange, join op won't run for batch-cluster mode + RequestJoinRunner* runner = CreateRunner( + id_++, node->schemas_ctx(), op->GetLimitCnt(), op->join_, + left->output_schemas()->GetSchemaSourceSize(), + right->output_schemas()->GetSchemaSourceSize(), op->output_right_only_); + return RegisterTask( + node, BinaryInherit(left_task, right_task, runner, op->join().index_key(), kLeftBias)); + } else { + JoinRunner* runner = + CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->join_, + left->output_schemas()->GetSchemaSourceSize(), + right->output_schemas()->GetSchemaSourceSize()); + return RegisterTask(node, BinaryInherit(left_task, right_task, runner, Key(), kLeftBias)); + } + } + case node::kJoinTypeConcat: { + ConcatRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt()); + return RegisterTask(node, + BinaryInherit(left_task, right_task, runner, op->join().index_key(), kNoBias)); + } + default: { + status.code = common::kExecutionPlanError; + status.msg = "can't handle join type " + node::JoinTypeName(op->join().join_type()); + LOG(WARNING) << status; + return RegisterTask(node, fail); + } + } + } + case kPhysicalOpGroupBy: { + if (support_cluster_optimized_) { + // Non-support group by under distribution env + status.msg = "fail to build cluster with group by node"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto cluster_task = Build(node->producers().at(0), status); + if (!cluster_task.IsValid()) { + status.msg = "fail to build input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto op = dynamic_cast(node); + GroupRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->group()); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + case kPhysicalOpFilter: { + auto producer_task = Build(node->GetProducer(0), status); + if (!producer_task.IsValid()) { + status.msg = "fail to build input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto op = dynamic_cast(node); + FilterRunner* runner = + CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->filter_); + // under cluster, filter task might be completed or uncompleted + // based on whether filter node has the index_key underlaying DataTask requires + ClusterTask out; + if (support_cluster_optimized_) { + auto& route_info_ref = producer_task.GetRouteInfo(); + if (runner->filter_gen_.ValidIndex()) { + // complete the route info + RouteInfo lazy_route_info(route_info_ref.index_, op->filter().index_key(), + std::make_shared(producer_task), + route_info_ref.table_handler_); + lazy_route_info.lazy_route_ = true; + runner->AddProducer(producer_task.GetRoot()); + out = ClusterTask(runner, {}, lazy_route_info); + } else { + runner->AddProducer(producer_task.GetRoot()); + out = UnCompletedClusterTask(runner, route_info_ref.table_handler_, route_info_ref.index_); + } + } else { + out = UnaryInheritTask(producer_task, runner); + } + return RegisterTask(node, out); + } + case kPhysicalOpLimit: { + auto cluster_task = // NOLINT + Build(node->producers().at(0), status); + if (!cluster_task.IsValid()) { + status.msg = "fail to build input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto op = dynamic_cast(node); + if (!op->GetLimitCnt().has_value() || op->GetLimitOptimized()) { + return RegisterTask(node, cluster_task); + } + // limit runner always expect limit not empty + LimitRunner* runner = CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt().value()); + return RegisterTask(node, UnaryInheritTask(cluster_task, runner)); + } + case kPhysicalOpRename: { + return Build(node->producers().at(0), status); + } + case kPhysicalOpPostRequestUnion: { + auto left_task = Build(node->producers().at(0), status); + if (!left_task.IsValid()) { + status.msg = "fail to build left input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto right_task = Build(node->producers().at(1), status); + if (!right_task.IsValid()) { + status.msg = "fail to build right input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto union_op = dynamic_cast(node); + PostRequestUnionRunner* runner = + CreateRunner(id_++, node->schemas_ctx(), union_op->request_ts()); + return RegisterTask(node, BinaryInherit(left_task, right_task, runner, Key(), kRightBias)); + } + default: { + status.code = common::kExecutionPlanError; + status.msg = absl::StrCat("Non-support node ", PhysicalOpTypeName(node->GetOpType()), + " for OpenMLDB Online execute mode"); + LOG(WARNING) << status; + return RegisterTask(node, fail); + } + } +} + +ClusterTask RunnerBuilder::BuildRequestAggUnionTask(PhysicalOpNode* node, Status& status) { + auto fail = InvalidTask(); + auto request_task = Build(node->producers().at(0), status); + if (!request_task.IsValid()) { + status.msg = "fail to build request input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto base_table_task = Build(node->producers().at(1), status); + auto base_table = base_table_task.GetRoot(); + if (!base_table_task.IsValid()) { + status.msg = "fail to build base_table input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto agg_table_task = Build(node->producers().at(2), status); + auto agg_table = agg_table_task.GetRoot(); + if (!agg_table_task.IsValid()) { + status.msg = "fail to build agg_table input runner"; + status.code = common::kExecutionPlanError; + LOG(WARNING) << status; + return fail; + } + auto op = dynamic_cast(node); + RequestAggUnionRunner* runner = + CreateRunner(id_++, node->schemas_ctx(), op->GetLimitCnt(), op->window().range_, + op->exclude_current_time(), op->output_request_row(), op->project_); + Key index_key; + if (!op->instance_not_in_window()) { + index_key = op->window_.index_key(); + runner->AddWindowUnion(op->window_, base_table); + runner->AddWindowUnion(op->agg_window_, agg_table); + } + auto task = RegisterTask( + node, MultipleInherit({&request_task, &base_table_task, &agg_table_task}, runner, index_key, kRightBias)); + if (!runner->InitAggregator()) { + return fail; + } else { + return task; + } +} + +ClusterTask RunnerBuilder::BinaryInherit(const ClusterTask& left, const ClusterTask& right, Runner* runner, + const Key& index_key, const TaskBiasType bias) { + if (support_cluster_optimized_) { + return BuildClusterTaskForBinaryRunner(left, right, runner, index_key, bias); + } else { + return BuildLocalTaskForBinaryRunner(left, right, runner); + } +} + +ClusterTask RunnerBuilder::MultipleInherit(const std::vector& children, Runner* runner, + const Key& index_key, const TaskBiasType bias) { + // TODO(zhanghao): currently only kRunnerRequestAggUnion uses MultipleInherit + const ClusterTask* request = children[0]; + if (runner->type_ != kRunnerRequestAggUnion) { + LOG(WARNING) << "MultipleInherit only support RequestAggUnionRunner"; + return ClusterTask(); + } + + if (children.size() < 3) { + LOG(WARNING) << "MultipleInherit should be called for children size >= 3, but children.size() = " + << children.size(); + return ClusterTask(); + } + + for (const auto child : children) { + if (child->IsClusterTask()) { + if (index_key.ValidKey()) { + for (size_t i = 1; i < children.size(); i++) { + if (!children[i]->IsClusterTask()) { + LOG(WARNING) << "Fail to build cluster task for " + << "[" << runner->id_ << "]" << RunnerTypeName(runner->type_) + << ": can't handler local task with index key"; + return ClusterTask(); + } + if (children[i]->IsCompletedClusterTask()) { + LOG(WARNING) << "Fail to complete cluster task for " + << "[" << runner->id_ << "]" << RunnerTypeName(runner->type_) + << ": task is completed already"; + return ClusterTask(); + } + } + for (size_t i = 0; i < children.size(); i++) { + runner->AddProducer(children[i]->GetRoot()); + } + // build complete cluster task + // TODO(zhanghao): assume all children can be handled with one single tablet + const RouteInfo& route_info = children[1]->GetRouteInfo(); + ClusterTask cluster_task(runner, std::vector({runner}), + RouteInfo(route_info.index_, index_key, + std::make_shared(*request), route_info.table_handler_)); + return cluster_task; + } + } + } + + // if all are local tasks + for (const auto child : children) { + runner->AddProducer(child->GetRoot()); + } + return ClusterTask(runner); +} + +ClusterTask RunnerBuilder::BuildLocalTaskForBinaryRunner(const ClusterTask& left, const ClusterTask& right, + Runner* runner) { + if (left.IsClusterTask() || right.IsClusterTask()) { + LOG(WARNING) << "fail to build local task for binary runner"; + return ClusterTask(); + } + runner->AddProducer(left.GetRoot()); + runner->AddProducer(right.GetRoot()); + return ClusterTask(runner); +} + +ClusterTask RunnerBuilder::BuildClusterTaskForBinaryRunner(const ClusterTask& left, const ClusterTask& right, + Runner* runner, const Key& index_key, + const TaskBiasType bias) { + if (nullptr == runner) { + LOG(WARNING) << "Fail to build cluster task for null runner"; + return ClusterTask(); + } + ClusterTask new_left = left; + ClusterTask new_right = right; + + // if index key is valid, try to complete route info of right cluster task + if (index_key.ValidKey()) { + if (!right.IsClusterTask()) { + LOG(WARNING) << "Fail to build cluster task for " + << "[" << runner->id_ << "]" << RunnerTypeName(runner->type_) + << ": can't handler local task with index key"; + return ClusterTask(); + } + if (right.IsCompletedClusterTask()) { + // completed with same index key + std::stringstream ss; + right.Print(ss, " "); + LOG(WARNING) << "Fail to complete cluster task for " + << "[" << runner->id_ << "]" << RunnerTypeName(runner->type_) + << ": task is completed already:\n" + << ss.str(); + LOG(WARNING) << "index key is " << index_key.ToString(); + return ClusterTask(); + } + RequestRunner* request_runner = CreateRunner(id_++, new_left.GetRoot()->output_schemas()); + runner->AddProducer(request_runner); + runner->AddProducer(new_right.GetRoot()); + + const RouteInfo& right_route_info = new_right.GetRouteInfo(); + ClusterTask cluster_task(runner, std::vector({runner}), + RouteInfo(right_route_info.index_, index_key, std::make_shared(new_left), + right_route_info.table_handler_)); + + if (new_left.IsCompletedClusterTask()) { + return BuildProxyRunnerForClusterTask(cluster_task); + } else { + return cluster_task; + } + } + + // Concat + // Agg1(Proxy(RequestUnion(Request, DATA)) + // Agg2(Proxy(RequestUnion(Request, DATA)) + // --> + // Proxy(Concat + // Agg1(RequestUnion(Request,DATA) + // Agg2(RequestUnion(Request,DATA) + // ) + + // if left and right is completed cluster task + while (new_left.IsCompletedClusterTask() && new_right.IsCompletedClusterTask()) { + // merge left and right task if tasks can be merged + if (ClusterTask::TaskCanBeMerge(new_left, new_right)) { + ClusterTask task = ClusterTask::TaskMerge(runner, new_left, new_right); + runner->AddProducer(new_left.GetRoot()); + runner->AddProducer(new_right.GetRoot()); + return task; + } + switch (bias) { + case kNoBias: { + // Add build left proxy task into cluster job, + // and update new_left + new_left = BuildProxyRunnerForClusterTask(new_left); + new_right = BuildProxyRunnerForClusterTask(new_right); + break; + } + case kLeftBias: { + // build proxy runner for right task + new_right = BuildProxyRunnerForClusterTask(new_right); + break; + } + case kRightBias: { + // build proxy runner for right task + new_left = BuildProxyRunnerForClusterTask(new_left); + break; + } + } + } + if (new_left.IsUnCompletedClusterTask()) { + LOG(WARNING) << "can't handler uncompleted cluster task from left:" << new_left; + return ClusterTask(); + } + if (new_right.IsUnCompletedClusterTask()) { + LOG(WARNING) << "can't handler uncompleted cluster task from right:" << new_right; + return ClusterTask(); + } + + // prepare left and right for runner + + // left local task + right cluster task + if (new_right.IsCompletedClusterTask()) { + switch (bias) { + case kNoBias: + case kLeftBias: { + new_right = BuildProxyRunnerForClusterTask(new_right); + runner->AddProducer(new_left.GetRoot()); + runner->AddProducer(new_right.GetRoot()); + return ClusterTask::TaskMergeToLeft(runner, new_left, new_right); + } + case kRightBias: { + auto new_left_root_input = ClusterTask::GetRequestInput(new_left); + auto new_right_root_input = ClusterTask::GetRequestInput(new_right); + // task can be merge simply when their inputs are the same + if (new_right_root_input == new_left_root_input) { + runner->AddProducer(new_left.GetRoot()); + runner->AddProducer(new_right.GetRoot()); + return ClusterTask::TaskMergeToRight(runner, new_left, new_right); + } else if (new_left_root_input == nullptr) { + // reset replace inputs as request runner + new_right.ResetInputs(nullptr); + runner->AddProducer(new_left.GetRoot()); + runner->AddProducer(new_right.GetRoot()); + return ClusterTask::TaskMergeToRight(runner, new_left, new_right); + } else { + LOG(WARNING) << "fail to merge local left task and cluster " + "right task"; + return ClusterTask(); + } + } + default: + return ClusterTask(); + } + } else if (new_left.IsCompletedClusterTask()) { + switch (bias) { + case kNoBias: + case kRightBias: { + new_left = BuildProxyRunnerForClusterTask(new_left); + runner->AddProducer(new_left.GetRoot()); + runner->AddProducer(new_right.GetRoot()); + return ClusterTask::TaskMergeToRight(runner, new_left, new_right); + } + case kLeftBias: { + auto new_left_root_input = ClusterTask::GetRequestInput(new_right); + auto new_right_root_input = ClusterTask::GetRequestInput(new_right); + // task can be merge simply + if (new_right_root_input == new_left_root_input) { + runner->AddProducer(new_left.GetRoot()); + runner->AddProducer(new_right.GetRoot()); + return ClusterTask::TaskMergeToLeft(runner, new_left, new_right); + } else if (new_right_root_input == nullptr) { + // reset replace inputs as request runner + new_left.ResetInputs(nullptr); + runner->AddProducer(new_left.GetRoot()); + runner->AddProducer(new_right.GetRoot()); + return ClusterTask::TaskMergeToLeft(runner, new_left, new_right); + } else { + LOG(WARNING) << "fail to merge cluster left task and local " + "right task"; + return ClusterTask(); + } + } + default: + return ClusterTask(); + } + } else { + runner->AddProducer(new_left.GetRoot()); + runner->AddProducer(new_right.GetRoot()); + return ClusterTask::TaskMergeToLeft(runner, new_left, new_right); + } +} +ClusterTask RunnerBuilder::BuildProxyRunnerForClusterTask(const ClusterTask& task) { + if (!task.IsCompletedClusterTask()) { + LOG(WARNING) << "Fail to build proxy runner, cluster task is uncompleted"; + return ClusterTask(); + } + // return cached proxy runner + Runner* proxy_runner = nullptr; + auto find_iter = proxy_runner_map_.find(task.GetRoot()); + if (find_iter != proxy_runner_map_.cend()) { + proxy_runner = find_iter->second; + proxy_runner->EnableCache(); + } else { + uint32_t remote_task_id = cluster_job_.AddTask(task); + ProxyRequestRunner* new_proxy_runner = CreateRunner( + id_++, remote_task_id, task.GetIndexKeyInput(), task.GetRoot()->output_schemas()); + if (nullptr != task.GetIndexKeyInput()) { + task.GetIndexKeyInput()->EnableCache(); + } + if (task.GetRoot()->need_batch_cache()) { + new_proxy_runner->EnableBatchCache(); + } + proxy_runner_map_.insert(std::make_pair(task.GetRoot(), new_proxy_runner)); + proxy_runner = new_proxy_runner; + } + + if (task.GetInput()) { + return UnaryInheritTask(*task.GetInput(), proxy_runner); + } else { + return UnaryInheritTask(*request_task_, proxy_runner); + } + LOG(WARNING) << "Fail to build proxy runner for cluster job"; + return ClusterTask(); +} + +ClusterTask RunnerBuilder::UnCompletedClusterTask(Runner* runner, const std::shared_ptr table_handler, + std::string index) { + return ClusterTask(runner, table_handler, index); +} + +ClusterTask RunnerBuilder::BuildRequestTask(RequestRunner* runner) { + if (nullptr == runner) { + LOG(WARNING) << "fail to build request task with null runner"; + return ClusterTask(); + } + ClusterTask request_task(runner); + request_task_ = std::make_shared(request_task); + return request_task; +} +ClusterTask RunnerBuilder::UnaryInheritTask(const ClusterTask& input, Runner* runner) { + ClusterTask task = input; + runner->AddProducer(task.GetRoot()); + task.SetRoot(runner); + return task; +} + +ClusterTask RunnerBuilder::RegisterTask(PhysicalOpNode* node, ClusterTask task) { + task_map_[node] = task; + if (batch_common_node_set_.find(node->node_id()) != batch_common_node_set_.end()) { + task.GetRoot()->EnableBatchCache(); + } + return task; +} +ClusterJob RunnerBuilder::BuildClusterJob(PhysicalOpNode* node, Status& status) { + id_ = 0; + cluster_job_.Reset(); + auto task = Build(node, status); + if (!status.isOK()) { + return cluster_job_; + } + + if (task.IsCompletedClusterTask()) { + auto proxy_task = BuildProxyRunnerForClusterTask(task); + if (!proxy_task.IsValid()) { + status.code = common::kExecutionPlanError; + status.msg = "Fail to build proxy cluster task"; + LOG(WARNING) << status; + return cluster_job_; + } + cluster_job_.AddMainTask(proxy_task); + } else if (task.IsUnCompletedClusterTask()) { + status.code = common::kExecutionPlanError; + status.msg = + "Fail to build main task, can't handler " + "uncompleted cluster task"; + LOG(WARNING) << status; + return cluster_job_; + } else { + cluster_job_.AddMainTask(task); + } + return cluster_job_; +} + +} // namespace vm +} // namespace hybridse diff --git a/hybridse/src/vm/runner_builder.h b/hybridse/src/vm/runner_builder.h new file mode 100644 index 00000000000..fb403ef5639 --- /dev/null +++ b/hybridse/src/vm/runner_builder.h @@ -0,0 +1,92 @@ +/** + * Copyright (c) 2023 OpenMLDB authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef HYBRIDSE_SRC_VM_RUNNER_BUILDER_H_ +#define HYBRIDSE_SRC_VM_RUNNER_BUILDER_H_ + +#include +#include +#include +#include +#include +#include + +#include "node/node_manager.h" +#include "vm/cluster_task.h" +#include "vm/runner.h" + +namespace hybridse { +namespace vm { + +class RunnerBuilder { + enum TaskBiasType { kLeftBias, kRightBias, kNoBias }; + + public: + explicit RunnerBuilder(node::NodeManager* nm, const std::string& sql, const std::string& db, + bool support_cluster_optimized, const std::set& common_column_indices, + const std::set& batch_common_node_set) + : nm_(nm), + support_cluster_optimized_(support_cluster_optimized), + id_(0), + cluster_job_(sql, db, common_column_indices), + task_map_(), + proxy_runner_map_(), + batch_common_node_set_(batch_common_node_set) {} + virtual ~RunnerBuilder() {} + ClusterTask RegisterTask(PhysicalOpNode* node, ClusterTask task); + ClusterTask Build(PhysicalOpNode* node, // NOLINT + Status& status); // NOLINT + ClusterJob BuildClusterJob(PhysicalOpNode* node, Status& status); // NOLINT + + template + Op* CreateRunner(Args&&... args) { + return nm_->MakeNode(std::forward(args)...); + } + + private: + ClusterTask MultipleInherit(const std::vector& children, Runner* runner, const Key& index_key, + const TaskBiasType bias); + ClusterTask BinaryInherit(const ClusterTask& left, const ClusterTask& right, Runner* runner, const Key& index_key, + const TaskBiasType bias = kNoBias); + ClusterTask BuildLocalTaskForBinaryRunner(const ClusterTask& left, const ClusterTask& right, Runner* runner); + ClusterTask BuildClusterTaskForBinaryRunner(const ClusterTask& left, const ClusterTask& right, Runner* runner, + const Key& index_key, const TaskBiasType bias); + ClusterTask BuildProxyRunnerForClusterTask(const ClusterTask& task); + ClusterTask InvalidTask() { return ClusterTask(); } + ClusterTask CommonTask(Runner* runner) { return ClusterTask(runner); } + ClusterTask UnCompletedClusterTask(Runner* runner, const std::shared_ptr table_handler, + std::string index); + ClusterTask BuildRequestTask(RequestRunner* runner); + ClusterTask UnaryInheritTask(const ClusterTask& input, Runner* runner); + ClusterTask BuildRequestAggUnionTask(PhysicalOpNode* node, Status& status); // NOLINT + + private: + node::NodeManager* nm_; + // only set for request mode + bool support_cluster_optimized_; + int32_t id_; + ClusterJob cluster_job_; + + std::unordered_map<::hybridse::vm::PhysicalOpNode*, ::hybridse::vm::ClusterTask> task_map_; + std::shared_ptr request_task_; + std::unordered_map proxy_runner_map_; + std::set batch_common_node_set_; +}; + +} // namespace vm +} // namespace hybridse + +#endif // HYBRIDSE_SRC_VM_RUNNER_BUILDER_H_ diff --git a/hybridse/src/vm/runner_ctx.cc b/hybridse/src/vm/runner_ctx.cc new file mode 100644 index 00000000000..f18bef8065f --- /dev/null +++ b/hybridse/src/vm/runner_ctx.cc @@ -0,0 +1,48 @@ +/** + * Copyright (c) 2023 OpenMLDB authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "vm/runner_ctx.h" + +namespace hybridse { +namespace vm { + +std::shared_ptr RunnerContext::GetBatchCache(int64_t id) const { + auto iter = batch_cache_.find(id); + if (iter == batch_cache_.end()) { + return std::shared_ptr(); + } else { + return iter->second; + } +} + +void RunnerContext::SetBatchCache(int64_t id, std::shared_ptr data) { batch_cache_[id] = data; } + +std::shared_ptr RunnerContext::GetCache(int64_t id) const { + auto iter = cache_.find(id); + if (iter == cache_.end()) { + return std::shared_ptr(); + } else { + return iter->second; + } +} + +void RunnerContext::SetCache(int64_t id, const std::shared_ptr data) { cache_[id] = data; } + +void RunnerContext::SetRequest(const hybridse::codec::Row& request) { request_ = request; } +void RunnerContext::SetRequests(const std::vector& requests) { requests_ = requests; } + +} // namespace vm +} // namespace hybridse diff --git a/hybridse/src/vm/runner_ctx.h b/hybridse/src/vm/runner_ctx.h new file mode 100644 index 00000000000..0924015450a --- /dev/null +++ b/hybridse/src/vm/runner_ctx.h @@ -0,0 +1,99 @@ +/** + * Copyright (c) 2023 OpenMLDB authors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef HYBRIDSE_SRC_VM_RUNNER_CTX_H_ +#define HYBRIDSE_SRC_VM_RUNNER_CTX_H_ + +#include +#include +#include +#include + +#include "vm/cluster_task.h" + +namespace hybridse { +namespace vm { + +class RunnerContext { + public: + explicit RunnerContext(hybridse::vm::ClusterJob* cluster_job, + const hybridse::codec::Row& parameter, + const bool is_debug = false) + : cluster_job_(cluster_job), + sp_name_(""), + request_(), + requests_(), + parameter_(parameter), + is_debug_(is_debug), + batch_cache_() {} + explicit RunnerContext(hybridse::vm::ClusterJob* cluster_job, + const hybridse::codec::Row& request, + const std::string& sp_name = "", + const bool is_debug = false) + : cluster_job_(cluster_job), + sp_name_(sp_name), + request_(request), + requests_(), + parameter_(), + is_debug_(is_debug), + batch_cache_() {} + explicit RunnerContext(hybridse::vm::ClusterJob* cluster_job, + const std::vector& request_batch, + const std::string& sp_name = "", + const bool is_debug = false) + : cluster_job_(cluster_job), + sp_name_(sp_name), + request_(), + requests_(request_batch), + parameter_(), + is_debug_(is_debug), + batch_cache_() {} + + const size_t GetRequestSize() const { return requests_.size(); } + const hybridse::codec::Row& GetRequest() const { return request_; } + const hybridse::codec::Row& GetRequest(size_t idx) const { + return requests_[idx]; + } + const hybridse::codec::Row& GetParameterRow() const { return parameter_; } + hybridse::vm::ClusterJob* cluster_job() { return cluster_job_; } + void SetRequest(const hybridse::codec::Row& request); + void SetRequests(const std::vector& requests); + bool is_debug() const { return is_debug_; } + + const std::string& sp_name() { return sp_name_; } + std::shared_ptr GetCache(int64_t id) const; + void SetCache(int64_t id, std::shared_ptr data); + void ClearCache() { cache_.clear(); } + std::shared_ptr GetBatchCache(int64_t id) const; + void SetBatchCache(int64_t id, std::shared_ptr data); + + private: + hybridse::vm::ClusterJob* cluster_job_; + const std::string sp_name_; + hybridse::codec::Row request_; + std::vector requests_; + hybridse::codec::Row parameter_; + size_t idx_; + const bool is_debug_; + // TODO(chenjing): optimize + std::map> cache_; + std::map> batch_cache_; +}; + +} // namespace vm +} // namespace hybridse + +#endif // HYBRIDSE_SRC_VM_RUNNER_CTX_H_ diff --git a/hybridse/src/vm/runner_test.cc b/hybridse/src/vm/runner_test.cc index 177513a717f..ea8d9c9643e 100644 --- a/hybridse/src/vm/runner_test.cc +++ b/hybridse/src/vm/runner_test.cc @@ -15,26 +15,11 @@ */ #include -#include #include "absl/strings/match.h" -#include "boost/algorithm/string.hpp" #include "case/sql_case.h" #include "gtest/gtest.h" -#include "llvm/ExecutionEngine/Orc/LLJIT.h" -#include "llvm/IR/Function.h" -#include "llvm/IR/IRBuilder.h" -#include "llvm/IR/InstrTypes.h" -#include "llvm/IR/LegacyPassManager.h" -#include "llvm/IR/Module.h" -#include "llvm/Support/InitLLVM.h" #include "llvm/Support/TargetSelect.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Transforms/AggressiveInstCombine/AggressiveInstCombine.h" -#include "llvm/Transforms/InstCombine/InstCombine.h" -#include "llvm/Transforms/Scalar.h" -#include "llvm/Transforms/Scalar/GVN.h" -#include "plan/plan_api.h" #include "testing/test_base.h" #include "vm/sql_compiler.h" diff --git a/hybridse/src/vm/sql_compiler.cc b/hybridse/src/vm/sql_compiler.cc index 7d77432d278..4c819238a6a 100644 --- a/hybridse/src/vm/sql_compiler.cc +++ b/hybridse/src/vm/sql_compiler.cc @@ -18,19 +18,14 @@ #include #include #include -#include "boost/filesystem.hpp" -#include "boost/filesystem/string_file.hpp" #include "codec/fe_schema_codec.h" -#include "codec/type_codec.h" -#include "codegen/block_ir_builder.h" -#include "codegen/fn_ir_builder.h" -#include "codegen/ir_base_builder.h" #include "glog/logging.h" #include "llvm/IR/Verifier.h" #include "llvm/Support/raw_ostream.h" #include "plan/plan_api.h" #include "udf/default_udf_library.h" #include "vm/runner.h" +#include "vm/runner_builder.h" #include "vm/transform.h" #include "vm/engine.h" diff --git a/hybridse/src/vm/sql_compiler.h b/hybridse/src/vm/sql_compiler.h index 861918d9c47..5d4b78e8ea2 100644 --- a/hybridse/src/vm/sql_compiler.h +++ b/hybridse/src/vm/sql_compiler.h @@ -18,15 +18,13 @@ #define HYBRIDSE_SRC_VM_SQL_COMPILER_H_ #include -#include #include -#include #include #include "base/fe_status.h" #include "llvm/IR/Module.h" -#include "proto/fe_common.pb.h" #include "udf/udf_library.h" #include "vm/catalog.h" +#include "vm/cluster_task.h" #include "vm/engine_context.h" #include "vm/jit_wrapper.h" #include "vm/physical_op.h" diff --git a/hybridse/src/vm/sql_compiler_test.cc b/hybridse/src/vm/sql_compiler_test.cc index c415cae3f4e..a7091ce4143 100644 --- a/hybridse/src/vm/sql_compiler_test.cc +++ b/hybridse/src/vm/sql_compiler_test.cc @@ -15,27 +15,16 @@ */ #include "vm/sql_compiler.h" + #include -#include -#include "boost/algorithm/string.hpp" +#include + #include "case/sql_case.h" #include "gtest/gtest.h" -#include "llvm/ExecutionEngine/Orc/LLJIT.h" -#include "llvm/IR/Function.h" -#include "llvm/IR/IRBuilder.h" -#include "llvm/IR/InstrTypes.h" -#include "llvm/IR/LegacyPassManager.h" -#include "llvm/IR/Module.h" -#include "llvm/Support/InitLLVM.h" #include "llvm/Support/TargetSelect.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Transforms/AggressiveInstCombine/AggressiveInstCombine.h" -#include "llvm/Transforms/InstCombine/InstCombine.h" -#include "llvm/Transforms/Scalar.h" -#include "llvm/Transforms/Scalar/GVN.h" -#include "vm/simple_catalog.h" -#include "testing/test_base.h" #include "testing/engine_test_base.h" +#include "testing/test_base.h" +#include "vm/simple_catalog.h" using namespace llvm; // NOLINT using namespace llvm::orc; // NOLINT diff --git a/hybridse/src/vm/transform.cc b/hybridse/src/vm/transform.cc index a0340d41fbe..dc67a30c9a8 100644 --- a/hybridse/src/vm/transform.cc +++ b/hybridse/src/vm/transform.cc @@ -19,6 +19,7 @@ #include #include #include +#include #include "absl/cleanup/cleanup.h" #include "base/fe_status.h" @@ -1736,8 +1737,11 @@ Status BatchModeTransformer::ValidatePlanSupported(const PhysicalOpNode* in) { CHECK_STATUS(CheckPartitionColumn(join_op->join().right_key().keys(), join_op->schemas_ctx())); break; } - default: { + case node::kJoinTypeConcat: break; + default: { + FAIL_STATUS(common::kUnsupportSql, "unsupport join type ", + node::JoinTypeName(join_op->join_.join_type())) } } break; @@ -1750,8 +1754,11 @@ Status BatchModeTransformer::ValidatePlanSupported(const PhysicalOpNode* in) { CHECK_STATUS(CheckPartitionColumn(join_op->join().right_key().keys(), join_op->schemas_ctx())); break; } - default: { + case node::kJoinTypeConcat: break; + default: { + FAIL_STATUS(common::kUnsupportSql, "unsupport join type ", + node::JoinTypeName(join_op->join_.join_type())) } } break; @@ -1807,6 +1814,10 @@ Status BatchModeTransformer::ValidatePlanSupported(const PhysicalOpNode* in) { Status RequestModeTransformer::ValidatePlan(PhysicalOpNode* node) { CHECK_STATUS(BatchModeTransformer::ValidatePlan(node)) + // output is reqeust + CHECK_TRUE(node->GetOutputType() == kSchemaTypeRow, kPlanError, + "unsupport non-row output type for online-request mode"); + // OnlineServing restriction: Expect to infer one and only one request table from given SQL CHECK_STATUS(ValidateRequestTable(node), "Fail to validate physical plan") diff --git a/src/base/ddl_parser_test.cc b/src/base/ddl_parser_test.cc index 3439a694a15..6b6aaed90a0 100644 --- a/src/base/ddl_parser_test.cc +++ b/src/base/ddl_parser_test.cc @@ -385,18 +385,19 @@ TEST_F(DDLParserTest, joinExtract) { LOG(INFO) << "after add index:\n" << DDLParser::PhysicalPlan(sql, db); } - { - ClearAllIndex(); - // left join - auto sql = "SELECT t1.col1, t1.col2, t2.col1, t2.col2 FROM t1 left join t2 on t1.col1 = t2.col2;"; - - auto index_map = ExtractIndexesWithSingleDB(sql, db); - // {t2[col_name: "col2" ttl { ttl_type: kLatestTime lat_ttl: 1 }, ]} - CheckEqual(index_map, {{"t2", {"col2;;lat,0,1"}}}); - // the added index only has key, no ts - AddIndexToDB(index_map, &db); - LOG(INFO) << "after add index:\n" << DDLParser::PhysicalPlan(sql, db); - } + // TODO: fix later + // { + // ClearAllIndex(); + // // left join + // auto sql = "SELECT t1.col1, t1.col2, t2.col1, t2.col2 FROM t1 left join t2 on t1.col1 = t2.col2;"; + // + // auto index_map = ExtractIndexesWithSingleDB(sql, db); + // // {t2[col_name: "col2" ttl { ttl_type: kLatestTime lat_ttl: 1 }, ]} + // CheckEqual(index_map, {{"t2", {"col2;;lat,0,1"}}}); + // // the added index only has key, no ts + // AddIndexToDB(index_map, &db); + // LOG(INFO) << "after add index:\n" << DDLParser::PhysicalPlan(sql, db); + // } } TEST_F(DDLParserTest, complexJoin) { @@ -418,26 +419,26 @@ TEST_F(DDLParserTest, complexJoin) { LOG(INFO) << "after add index:\n" << DDLParser::PhysicalPlan(sql, db); } - { - ClearAllIndex(); - // no simple equal condition, won't extract index - auto sql = - "SELECT t1.col1, t1.col2, t2.col1, t2.col2 FROM t1 left join t2 on timestamp(int64(t1.col6)) = " - "timestamp(int64(t2.col6));"; - auto index_map = ExtractIndexesWithSingleDB(sql, db); - ASSERT_TRUE(index_map.empty()); - // must have a simple equal condition - sql = - "SELECT t1.col1, t1.col2, t2.col1, t2.col2 FROM t1 left join t2 on timestamp(int64(t1.col6)) = " - "timestamp(int64(t2.col6)) and t1.col1 = t2.col2;"; - index_map = ExtractIndexesWithSingleDB(sql, db); - // index is on t2.col2 {t2[col_name: "col2" ttl { ttl_type: kLatestTime lat_ttl: 1 }, ]} - CheckEqual(index_map, {{"t2", {"col2;;lat,0,1"}}}); - - // the added index only has key, no ts - AddIndexToDB(index_map, &db); - LOG(INFO) << "after add index:\n" << DDLParser::PhysicalPlan(sql, db); - } + // { + // ClearAllIndex(); + // // no simple equal condition, won't extract index + // auto sql = + // "SELECT t1.col1, t1.col2, t2.col1, t2.col2 FROM t1 left join t2 on timestamp(int64(t1.col6)) = " + // "timestamp(int64(t2.col6));"; + // auto index_map = ExtractIndexesWithSingleDB(sql, db); + // ASSERT_TRUE(index_map.empty()); + // // must have a simple equal condition + // sql = + // "SELECT t1.col1, t1.col2, t2.col1, t2.col2 FROM t1 left join t2 on timestamp(int64(t1.col6)) = " + // "timestamp(int64(t2.col6)) and t1.col1 = t2.col2;"; + // index_map = ExtractIndexesWithSingleDB(sql, db); + // // index is on t2.col2 {t2[col_name: "col2" ttl { ttl_type: kLatestTime lat_ttl: 1 }, ]} + // CheckEqual(index_map, {{"t2", {"col2;;lat,0,1"}}}); + // + // // the added index only has key, no ts + // AddIndexToDB(index_map, &db); + // LOG(INFO) << "after add index:\n" << DDLParser::PhysicalPlan(sql, db); + // } } TEST_F(DDLParserTest, multiJoin) { diff --git a/src/sdk/sql_sdk_test.h b/src/sdk/sql_sdk_test.h index 5eaadde6623..5a020d144cb 100644 --- a/src/sdk/sql_sdk_test.h +++ b/src/sdk/sql_sdk_test.h @@ -48,6 +48,8 @@ INSTANTIATE_TEST_SUITE_P(SQLSDKHavingQuery, SQLSDKQueryTest, testing::ValuesIn(SQLSDKQueryTest::InitCases("cases/query/having_query.yaml"))); INSTANTIATE_TEST_SUITE_P(SQLSDKLastJoinQuery, SQLSDKQueryTest, testing::ValuesIn(SQLSDKQueryTest::InitCases("cases/query/last_join_query.yaml"))); +INSTANTIATE_TEST_SUITE_P(SQLSDKLeftJoin, SQLSDKQueryTest, + testing::ValuesIn(SQLSDKQueryTest::InitCases("cases/query/left_join.yml"))); INSTANTIATE_TEST_SUITE_P(SQLSDKLastJoinWindowQuery, SQLSDKQueryTest, testing::ValuesIn(SQLSDKQueryTest::InitCases("cases/query/last_join_window_query.yaml"))); INSTANTIATE_TEST_SUITE_P(SQLSDKLastJoinSubqueryWindow, SQLSDKQueryTest, From b1435d2ab0904490e264e394bc9693f9ca32c779 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 15 Nov 2023 15:52:54 +0800 Subject: [PATCH 100/111] fix: ip validation in diag rpc helper (#3580) --- python/openmldb_tool/diagnostic_tool/rpc.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/python/openmldb_tool/diagnostic_tool/rpc.py b/python/openmldb_tool/diagnostic_tool/rpc.py index 8e3f8efc660..07d9ff7e964 100644 --- a/python/openmldb_tool/diagnostic_tool/rpc.py +++ b/python/openmldb_tool/diagnostic_tool/rpc.py @@ -28,7 +28,8 @@ ) def validate_ip_address(ip_string): - return not any(c.isalpha() for c in ip_string) + # localhost:xxxx is valid ip too, ip must have at least one ":" + return ip_string.find(":") != -1 host2service = { From 825d155fd2c841e1589d7b3121166d1c1367e834 Mon Sep 17 00:00:00 2001 From: HuangWei Date: Wed, 15 Nov 2023 15:59:06 +0800 Subject: [PATCH 101/111] fix: get trans-failed column and relax json (#3521) * fix: get trans-failed column in api deploy req * relax check in json double * json nan input&output, cmake * fix ut xml upload --- .github/workflows/cicd.yaml | 2 + CMakeLists.txt | 1 + cmake/rapidjson.cmake | 9 ++ docs/zh/quickstart/sdk/rest_api.md | 19 +++- src/apiserver/api_server_impl.cc | 99 ++++++++++++-------- src/apiserver/api_server_impl.h | 28 +++--- src/apiserver/api_server_test.cc | 143 +++++++++++++++++++++++------ src/apiserver/json_helper.cc | 30 +++--- src/apiserver/json_helper.h | 16 +++- 9 files changed, 251 insertions(+), 96 deletions(-) create mode 100644 cmake/rapidjson.cmake diff --git a/.github/workflows/cicd.yaml b/.github/workflows/cicd.yaml index 5fa5f6411c8..de76ed04a5f 100644 --- a/.github/workflows/cicd.yaml +++ b/.github/workflows/cicd.yaml @@ -107,9 +107,11 @@ jobs: uses: actions/upload-artifact@v2 with: name: linux-ut-result-cpp-${{ github.sha }} + # exclude _deps xml path: | build/**/*.xml reports/*.xml + !build/_deps/* - name: install if: ${{ github.event_name == 'push' }} diff --git a/CMakeLists.txt b/CMakeLists.txt index 21066a3c505..703d6bf11de 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -136,6 +136,7 @@ endif() include(FetchContent) set(FETCHCONTENT_QUIET OFF) include(farmhash) +include(rapidjson) # contrib libs add_subdirectory(contrib EXCLUDE_FROM_ALL) diff --git a/cmake/rapidjson.cmake b/cmake/rapidjson.cmake new file mode 100644 index 00000000000..6b1ecd2a6dd --- /dev/null +++ b/cmake/rapidjson.cmake @@ -0,0 +1,9 @@ +FetchContent_Declare( + rapidjson + URL https://github.com/Tencent/rapidjson/archive/refs/tags/v1.1.0.zip + URL_HASH MD5=ceb1cf16e693a3170c173dc040a9d2bd + EXCLUDE_FROM_ALL # don't build this project as part of the overall build +) +# don't build this project, just populate +FetchContent_Populate(rapidjson) +include_directories(${rapidjson_SOURCE_DIR}/include) diff --git a/docs/zh/quickstart/sdk/rest_api.md b/docs/zh/quickstart/sdk/rest_api.md index 0526127cd29..0a225e444f6 100644 --- a/docs/zh/quickstart/sdk/rest_api.md +++ b/docs/zh/quickstart/sdk/rest_api.md @@ -5,6 +5,18 @@ - REST APIs 通过 APIServer 和 OpenMLDB 的服务进行交互,因此 APIServer 模块必须被正确部署才能有效使用。APISever 在安装部署时是可选模块,参照 [APIServer 部署文档](../../deploy/install_deploy.md#部署-apiserver)。 - 现阶段,APIServer 主要用来做功能测试使用,并不推荐用来测试性能,也不推荐在生产环境使用。APIServer 的默认部署目前并没有高可用机制,并且引入了额外的网络和编解码开销。生产环境推荐使用 Java SDK,功能覆盖最完善,并且在功能、性能上都经过了充分测试。 +## JSON Body + +与APIServer的交互中,请求体均为JSON格式,并支持一定的扩展格式。注意以下几点: + +- 传入超过整型或浮点数最大值的数值,将会解析失败,比如,double类型传入`1e1000`。 +- 非数值浮点数:在传入数据时,支持传入`NaN`、`Infinity`、`-Infinity`,与缩写`Inf`、`-Inf`(注意是unquoted的,并非字符串,也不支持其他变种写法)。在返回数据时,支持返回`NaN`、`Infinity`、`-Infinity`(不支持变种写法)。如果你需要将三者转换为null,可以配置 `write_nan_and_inf_null`。 +- 可以传入整型数字到浮点数,比如,`1`可被读取为double。 +- float浮点数可能有精度损失,比如,`0.3`读取后将不会严格等于`0.3`,而是`0.30000000000000004`。我们不拒绝精度损失,请从业务层面考虑是否需要对此进行处理。传入超过float max但不超过double max的值,在读取后将成为`Inf`。 +- `true/false`、`null`并不支持大写,只支持小写。 +- timestamp类型暂不支持传入年月日字符串,只支持传入数值,比如`1635247427000`。 +- date类型请传入**年月日字符串**,中间不要包含任何空格。 + ## 数据插入 请求地址:http://ip:port/dbs/{db_name}/tables/{table_name} @@ -55,7 +67,8 @@ curl http://127.0.0.1:8080/dbs/db/tables/trans -X PUT -d '{ ```JSON { "input": [["row0_value0", "row0_value1", "row0_value2"], ["row1_value0", "row1_value1", "row1_value2"], ...], - "need_schema": false + "need_schema": false, + "write_nan_and_inf_null": false } ``` @@ -73,6 +86,7 @@ curl http://127.0.0.1:8080/dbs/db/tables/trans -X PUT -d '{ - 可以支持多行,其结果与返回的 response 中的 data.data 字段的数组一一对应。 - need_schema 可以设置为 true, 返回就会有输出结果的 schema。可选参数,默认为 false。 +- write_nan_and_inf_null 可以设置为 true,可选参数,默认为false。如果设置为 true,当输出数据中有 NaN、Inf、-Inf 时,会将其转换为 null。 - input 为 array 格式/JSON 格式时候返回结果也是 array 格式/JSON 格式,一次请求的 input 只支持一种格式,请不要混合格式。 - JSON 格式的 input 数据可以有多余列。 @@ -131,7 +145,8 @@ curl http://127.0.0.1:8080/dbs/demo_db/deployments/demo_data_service -X POST -d' "input": { "schema": [], "data": [] - } + }, + "write_nan_and_inf_null": false } ``` diff --git a/src/apiserver/api_server_impl.cc b/src/apiserver/api_server_impl.cc index c24b76c40ce..acd6ce24517 100644 --- a/src/apiserver/api_server_impl.cc +++ b/src/apiserver/api_server_impl.cc @@ -153,14 +153,16 @@ void APIServerImpl::RegisterQuery() { } QueryResp query_resp; + // we set write_nan_and_inf_null here instead of create a new JsonWriter with flags, cuz JsonWriter is not a + // good impl for template flag + query_resp.write_nan_and_inf_null = req.write_nan_and_inf_null; query_resp.rs = rs; writer << query_resp; }); } -bool APIServerImpl::JsonArray2SQLRequestRow(const butil::rapidjson::Value& non_common_cols_v, - const butil::rapidjson::Value& common_cols_v, - std::shared_ptr row) { +absl::Status APIServerImpl::JsonArray2SQLRequestRow(const Value& non_common_cols_v, const Value& common_cols_v, + std::shared_ptr row) { auto sch = row->GetSchema(); // scan all strings to init the total string length @@ -186,23 +188,24 @@ bool APIServerImpl::JsonArray2SQLRequestRow(const butil::rapidjson::Value& non_c for (decltype(sch->GetColumnCnt()) i = 0; i < sch->GetColumnCnt(); ++i) { if (sch->IsConstant(i)) { if (!AppendJsonValue(common_cols_v[common_idx], sch->GetColumnType(i), sch->IsColumnNotNull(i), row)) { - return false; + return absl::InvalidArgumentError( + absl::StrCat("trans const ", sch->GetColumnName(i), "[", sch->GetColumnType(i), "] failed")); } ++common_idx; } else { if (!AppendJsonValue(non_common_cols_v[non_common_idx], sch->GetColumnType(i), sch->IsColumnNotNull(i), row)) { - return false; + return absl::InvalidArgumentError( + absl::StrCat("trans ", sch->GetColumnName(i), "[", sch->GetColumnType(i), "] failed")); } ++non_common_idx; } } - return true; + return absl::OkStatus(); } template -bool APIServerImpl::AppendJsonValue(const butil::rapidjson::Value& v, hybridse::sdk::DataType type, bool is_not_null, - T row) { +bool APIServerImpl::AppendJsonValue(const Value& v, hybridse::sdk::DataType type, bool is_not_null, T row) { // check if null if (v.IsNull()) { if (is_not_null) { @@ -237,13 +240,14 @@ bool APIServerImpl::AppendJsonValue(const butil::rapidjson::Value& v, hybridse:: return row->AppendInt64(v.GetInt64()); } case hybridse::sdk::kTypeFloat: { - if (!v.IsDouble()) { + if (!v.IsNumber()) { // relax check, int can get as double and support set float NaN&Inf return false; } - return row->AppendFloat(boost::lexical_cast(v.GetDouble())); + // IEEE 754 arithmetic allows cast nan/inf to float + return row->AppendFloat(v.GetFloat()); } case hybridse::sdk::kTypeDouble: { - if (!v.IsDouble()) { + if (!v.IsLosslessDouble()) { return false; } return row->AppendDouble(v.GetDouble()); @@ -281,9 +285,8 @@ bool APIServerImpl::AppendJsonValue(const butil::rapidjson::Value& v, hybridse:: } // common_cols_v is still an array, but non_common_cols_v is map, should find the value by the column name -bool APIServerImpl::JsonMap2SQLRequestRow(const butil::rapidjson::Value& non_common_cols_v, - const butil::rapidjson::Value& common_cols_v, - std::shared_ptr row) { +absl::Status APIServerImpl::JsonMap2SQLRequestRow(const Value& non_common_cols_v, const Value& common_cols_v, + std::shared_ptr row) { auto sch = row->GetSchema(); // scan all strings to init the total string length @@ -300,8 +303,7 @@ bool APIServerImpl::JsonMap2SQLRequestRow(const butil::rapidjson::Value& non_com if (sch->GetColumnType(i) == hybridse::sdk::kTypeString) { auto v = non_common_cols_v.FindMember(sch->GetColumnName(i).c_str()); if (v == non_common_cols_v.MemberEnd()) { - LOG(WARNING) << "can't find " << sch->GetColumnName(i); - return false; + return absl::InvalidArgumentError("can't find " + sch->GetColumnName(i)); } str_len_sum += v->value.GetStringLength(); } @@ -313,23 +315,22 @@ bool APIServerImpl::JsonMap2SQLRequestRow(const butil::rapidjson::Value& non_com for (decltype(sch->GetColumnCnt()) i = 0; i < sch->GetColumnCnt(); ++i) { if (sch->IsConstant(i)) { if (!AppendJsonValue(common_cols_v[common_idx], sch->GetColumnType(i), sch->IsColumnNotNull(i), row)) { - LOG(WARNING) << "set " << sch->GetColumnName(i) << " failed"; - return false; + return absl::InvalidArgumentError( + absl::StrCat("trans const ", sch->GetColumnName(i), "[", sch->GetColumnType(i), "] failed")); } ++common_idx; } else { auto v = non_common_cols_v.FindMember(sch->GetColumnName(i).c_str()); if (v == non_common_cols_v.MemberEnd()) { - LOG(WARNING) << "can't find " << sch->GetColumnName(i); - return false; + return absl::InvalidArgumentError("can't find " + sch->GetColumnName(i)); } if (!AppendJsonValue(v->value, sch->GetColumnType(i), sch->IsColumnNotNull(i), row)) { - LOG(WARNING) << "set " << sch->GetColumnName(i) << " failed"; - return false; + return absl::InvalidArgumentError( + absl::StrCat("trans ", sch->GetColumnName(i), "[", sch->GetColumnType(i), "] failed")); } } } - return true; + return absl::OkStatus(); } void APIServerImpl::RegisterPut() { @@ -347,7 +348,7 @@ void APIServerImpl::RegisterPut() { // json2doc, then generate an insert sql Document document; - if (document.Parse(req_body.to_string().c_str()).HasParseError()) { + if (document.Parse(req_body.to_string().c_str()).HasParseError()) { DLOG(INFO) << "rapidjson doc parse [" << req_body.to_string().c_str() << "] failed, code " << document.GetParseError() << ", offset " << document.GetErrorOffset(); writer << resp.Set("Json parse failed, error code: " + std::to_string(document.GetParseError())); @@ -430,13 +431,14 @@ void APIServerImpl::ExecuteProcedure(bool has_common_col, const InterfaceProvide auto db = db_it->second; auto sp = sp_it->second; + // TODO(hw): JsonReader can't set SQLRequestRow simply(cuz common_cols), use raw rapidjson here Document document; - if (document.Parse(req_body.to_string().c_str()).HasParseError()) { + if (document.Parse(req_body.to_string().c_str()).HasParseError()) { writer << resp.Set("Request body json parse failed"); return; } - butil::rapidjson::Value common_cols_v; + Value common_cols_v; if (has_common_col) { auto common_cols = document.FindMember("common_cols"); if (common_cols != document.MemberEnd()) { @@ -459,6 +461,12 @@ void APIServerImpl::ExecuteProcedure(bool has_common_col, const InterfaceProvide } const auto& rows = input->value; + auto write_nan_and_inf_null = false; + auto write_nan_and_inf_null_option = document.FindMember("write_nan_and_inf_null"); + if (write_nan_and_inf_null_option != document.MemberEnd() && write_nan_and_inf_null_option->value.IsBool()) { + write_nan_and_inf_null = write_nan_and_inf_null_option->value.GetBool(); + } + hybridse::sdk::Status status; // We need to use ShowProcedure to get input schema(should know which column is constant). // GetRequestRowByProcedure can't do that. @@ -498,13 +506,15 @@ void APIServerImpl::ExecuteProcedure(bool has_common_col, const InterfaceProvide writer << resp.Set("Invalid input data size in row " + std::to_string(i)); return; } - if (!JsonArray2SQLRequestRow(rows[i], common_cols_v, row)) { - writer << resp.Set("Translate to request row failed in array row " + std::to_string(i)); + if (auto st = JsonArray2SQLRequestRow(rows[i], common_cols_v, row); !st.ok()) { + writer << resp.Set("Translate to request row failed in array row " + std::to_string(i) + ", " + + st.ToString()); return; } } else if (rows[i].IsObject()) { - if (!JsonMap2SQLRequestRow(rows[i], common_cols_v, row)) { - writer << resp.Set("Translate to request row failed in map row " + std::to_string(i)); + if (auto st = JsonMap2SQLRequestRow(rows[i], common_cols_v, row); !st.ok()) { + writer << resp.Set("Translate to request row failed in map row " + std::to_string(i) + ", " + + st.ToString()); return; } } else { @@ -522,6 +532,7 @@ void APIServerImpl::ExecuteProcedure(bool has_common_col, const InterfaceProvide } ExecSPResp sp_resp; + sp_resp.write_nan_and_inf_null = write_nan_and_inf_null; // output schema in sp_info is needed for encoding data, so we need a bool in ExecSPResp to know whether to // print schema sp_resp.sp_info = sp_info; @@ -720,6 +731,9 @@ JsonReader& operator&(JsonReader& ar, QueryReq& s) { // NOLINT if (ar.HasMember("input")) { ar.Member("input") & s.parameter; } + if (ar.HasMember("write_nan_and_inf_null")) { + ar.Member("write_nan_and_inf_null") & s.write_nan_and_inf_null; + } return ar.EndObject(); } @@ -877,7 +891,18 @@ void WriteSchema(JsonWriter& ar, const std::string& name, const hybridse::sdk::S ar.EndArray(); } -void WriteValue(JsonWriter& ar, std::shared_ptr rs, int i) { // NOLINT +void WriteDoubleHelper(JsonWriter& ar, double d, bool write_nan_and_inf_null) { // NOLINT + if (write_nan_and_inf_null) { + if (std::isnan(d) || std::isinf(d)) { + ar.SetNull(); + return; + } + } + ar& d; +} + +void WriteValue(JsonWriter& ar, std::shared_ptr rs, int i, // NOLINT + bool write_nan_and_inf_null) { auto schema = rs->GetSchema(); if (rs->IsNULL(i)) { if (schema->IsColumnNotNull(i)) { @@ -908,13 +933,13 @@ void WriteValue(JsonWriter& ar, std::shared_ptr rs, in case hybridse::sdk::kTypeFloat: { float value = 0; rs->GetFloat(i, &value); - ar& static_cast(value); + WriteDoubleHelper(ar, value, write_nan_and_inf_null); break; } case hybridse::sdk::kTypeDouble: { double value = 0; rs->GetDouble(i, &value); - ar& value; + WriteDoubleHelper(ar, value, write_nan_and_inf_null); break; } case hybridse::sdk::kTypeString: { @@ -980,7 +1005,7 @@ JsonWriter& operator&(JsonWriter& ar, ExecSPResp& s) { // NOLINT for (decltype(schema.GetColumnCnt()) i = 0; i < schema.GetColumnCnt(); i++) { if (!schema.IsConstant(i)) { ar.Member(schema.GetColumnName(i).c_str()); - WriteValue(ar, rs, i); + WriteValue(ar, rs, i, s.write_nan_and_inf_null); } } ar.EndObject(); @@ -988,7 +1013,7 @@ JsonWriter& operator&(JsonWriter& ar, ExecSPResp& s) { // NOLINT ar.StartArray(); for (decltype(schema.GetColumnCnt()) i = 0; i < schema.GetColumnCnt(); i++) { if (!schema.IsConstant(i)) { - WriteValue(ar, rs, i); + WriteValue(ar, rs, i, s.write_nan_and_inf_null); } } ar.EndArray(); // one row end @@ -1004,7 +1029,7 @@ JsonWriter& operator&(JsonWriter& ar, ExecSPResp& s) { // NOLINT ar.StartArray(); for (decltype(schema.GetColumnCnt()) i = 0; i < schema.GetColumnCnt(); i++) { if (schema.IsConstant(i)) { - WriteValue(ar, rs, i); + WriteValue(ar, rs, i, s.write_nan_and_inf_null); } } ar.EndArray(); // one row end @@ -1255,7 +1280,7 @@ JsonWriter& operator&(JsonWriter& ar, QueryResp& s) { // NOLINT while (rs->Next()) { ar.StartArray(); for (decltype(schema.GetColumnCnt()) i = 0; i < schema.GetColumnCnt(); i++) { - WriteValue(ar, rs, i); + WriteValue(ar, rs, i, s.write_nan_and_inf_null); } ar.EndArray(); } diff --git a/src/apiserver/api_server_impl.h b/src/apiserver/api_server_impl.h index 9c936c9748e..f2b9741cb07 100644 --- a/src/apiserver/api_server_impl.h +++ b/src/apiserver/api_server_impl.h @@ -24,9 +24,10 @@ #include #include +#include "absl/status/status.h" #include "apiserver/interface_provider.h" #include "apiserver/json_helper.h" -#include "json2pb/rapidjson.h" // rapidjson's DOM-style API +#include "rapidjson/document.h" // raw rapidjson 1.1.0, not in butil #include "proto/api_server.pb.h" #include "sdk/sql_cluster_router.h" #include "sdk/sql_request_row.h" @@ -34,9 +35,8 @@ namespace openmldb { namespace apiserver { -using butil::rapidjson::Document; -using butil::rapidjson::StringBuffer; -using butil::rapidjson::Writer; +using rapidjson::Document; +using rapidjson::Value; // APIServer is a service for brpc::Server. The entire implement is `StartAPIServer()` in src/cmd/openmldb.cc // Every request is handled by `Process()`, we will choose the right method of the request by `InterfaceProvider`. @@ -69,14 +69,14 @@ class APIServerImpl : public APIServer { void ExecuteProcedure(bool has_common_col, const InterfaceProvider::Params& param, const butil::IOBuf& req_body, JsonWriter& writer); // NOLINT - static bool JsonArray2SQLRequestRow(const butil::rapidjson::Value& non_common_cols_v, - const butil::rapidjson::Value& common_cols_v, - std::shared_ptr row); - static bool JsonMap2SQLRequestRow(const butil::rapidjson::Value& non_common_cols_v, - const butil::rapidjson::Value& common_cols_v, - std::shared_ptr row); + static absl::Status JsonArray2SQLRequestRow(const Value& non_common_cols_v, + const Value& common_cols_v, + std::shared_ptr row); + static absl::Status JsonMap2SQLRequestRow(const Value& non_common_cols_v, + const Value& common_cols_v, + std::shared_ptr row); template - static bool AppendJsonValue(const butil::rapidjson::Value& v, hybridse::sdk::DataType type, bool is_not_null, + static bool AppendJsonValue(const Value& v, hybridse::sdk::DataType type, bool is_not_null, T row); // may get segmentation fault when throw boost::bad_lexical_cast, so we use std::from_chars @@ -98,6 +98,7 @@ struct QueryReq { int timeout = -1; // only for offline jobs std::string sql; std::shared_ptr parameter; + bool write_nan_and_inf_null = false; }; JsonReader& operator&(JsonReader& ar, QueryReq& s); // NOLINT @@ -112,12 +113,13 @@ struct ExecSPResp { bool need_schema = false; bool json_result = false; std::shared_ptr rs; + bool write_nan_and_inf_null = false; }; void WriteSchema(JsonWriter& ar, const std::string& name, const hybridse::sdk::Schema& schema, // NOLINT bool only_const); -void WriteValue(JsonWriter& ar, std::shared_ptr rs, int i); // NOLINT +void WriteValue(JsonWriter& ar, std::shared_ptr rs, int i, bool write_nan_and_inf_null); // NOLINT // ExecSPResp reading is unsupported now, cuz we decode ResultSet with Schema here, it's irreversible JsonWriter& operator&(JsonWriter& ar, ExecSPResp& s); // NOLINT @@ -147,6 +149,8 @@ struct QueryResp { int code = 0; std::string msg = "ok"; std::shared_ptr rs; + // option, won't write to result + bool write_nan_and_inf_null = false; }; JsonWriter& operator&(JsonWriter& ar, QueryResp& s); // NOLINT diff --git a/src/apiserver/api_server_test.cc b/src/apiserver/api_server_test.cc index d14037ae506..f327ff89527 100644 --- a/src/apiserver/api_server_test.cc +++ b/src/apiserver/api_server_test.cc @@ -24,7 +24,8 @@ #include "butil/logging.h" #include "gflags/gflags.h" #include "gtest/gtest.h" -#include "json2pb/rapidjson.h" +#include "rapidjson/error/en.h" +#include "rapidjson/rapidjson.h" #include "sdk/mini_cluster.h" namespace openmldb::apiserver { @@ -117,7 +118,8 @@ class APIServerTest : public ::testing::Test { }; TEST_F(APIServerTest, jsonFormat) { - butil::rapidjson::Document document; + // test raw document + rapidjson::Document document; // Check the format of put request if (document @@ -127,7 +129,7 @@ TEST_F(APIServerTest, jsonFormat) { ] })") .HasParseError()) { - ASSERT_TRUE(false) << "json parse failed with code " << document.GetParseError(); + ASSERT_TRUE(false) << "json parse failed: " << rapidjson::GetParseError_En(document.GetParseError()); } hybridse::sdk::Status status; @@ -136,13 +138,102 @@ TEST_F(APIServerTest, jsonFormat) { ASSERT_EQ(1, value.Size()); const auto& arr = value[0]; ASSERT_EQ(7, arr.Size()); - ASSERT_EQ(butil::rapidjson::kStringType, arr[0].GetType()); - ASSERT_EQ(butil::rapidjson::kNumberType, arr[1].GetType()); - ASSERT_EQ(butil::rapidjson::kNumberType, arr[2].GetType()); - ASSERT_EQ(butil::rapidjson::kStringType, arr[3].GetType()); - ASSERT_EQ(butil::rapidjson::kNumberType, arr[4].GetType()); - ASSERT_EQ(butil::rapidjson::kTrueType, arr[5].GetType()); - ASSERT_EQ(butil::rapidjson::kNullType, arr[6].GetType()); + ASSERT_EQ(rapidjson::kStringType, arr[0].GetType()); + ASSERT_EQ(rapidjson::kNumberType, arr[1].GetType()); + ASSERT_EQ(rapidjson::kNumberType, arr[2].GetType()); + ASSERT_EQ(rapidjson::kStringType, arr[3].GetType()); + ASSERT_EQ(rapidjson::kNumberType, arr[4].GetType()); + ASSERT_EQ(rapidjson::kTrueType, arr[5].GetType()); + ASSERT_EQ(rapidjson::kNullType, arr[6].GetType()); + + // raw document with default flags can't parse unquoted nan&inf + ASSERT_TRUE(document.Parse("[NaN,Infinity]").HasParseError()); + ASSERT_EQ(rapidjson::kParseErrorValueInvalid, document.GetParseError()) << document.GetParseError(); + + // test json reader + // can read inf number to inf + { + JsonReader reader("1.797693134862316e308"); + ASSERT_TRUE(reader); + double d_res = -1.0; + reader >> d_res; + ASSERT_EQ(0x7ff0000000000000, *reinterpret_cast(&d_res)) + << std::hex << std::setprecision(16) << *reinterpret_cast(&d_res); + ASSERT_TRUE(std::isinf(d_res)); + } + + // read unquoted inf&nan, legal words + { + JsonReader reader("[NaN, Inf, -Inf, Infinity, -Infinity]"); + ASSERT_TRUE(reader); + double d_res = -1.0; + reader.StartArray(); + reader >> d_res; + ASSERT_TRUE(std::isnan(d_res)); + // nan hex + reader >> d_res; + ASSERT_TRUE(std::isinf(d_res)); + reader >> d_res; + ASSERT_TRUE(std::isinf(d_res)); + reader >> d_res; + ASSERT_TRUE(std::isinf(d_res)); + reader >> d_res; + ASSERT_TRUE(std::isinf(d_res)); + } + { + // float nan inf + // IEEE 754 arithmetic allows cast nan/inf to float, so GetFloat is fine + JsonReader reader("[NaN, Infinity, -Infinity]"); + ASSERT_TRUE(reader); + float f_res = -1.0; + reader.StartArray(); + reader >> f_res; + ASSERT_TRUE(std::isnan(f_res)); + reader >> f_res; + ASSERT_TRUE(std::isinf(f_res)); + reader >> f_res; + ASSERT_TRUE(std::isinf(f_res)); + // raw way for put and procedure(common cols) + f_res = -1.0; + rapidjson::Document document; + document.Parse("[NaN, Infinity, -Infinity]"); + document.StartArray(); + f_res = document[0].GetFloat(); + ASSERT_TRUE(std::isnan(f_res)); + f_res = document[1].GetFloat(); + ASSERT_TRUE(std::isinf(f_res)); + f_res = document[2].GetFloat(); + ASSERT_TRUE(std::isinf(f_res)); + } + { // illegal words + JsonReader reader("nan"); + ASSERT_FALSE(reader); + } + { // illegal words + JsonReader reader("+Inf"); + ASSERT_FALSE(reader); + } + { // string, not double + JsonReader reader("\"NaN\""); + ASSERT_TRUE(reader); + double d = -1.0; + reader >> d; + ASSERT_FALSE(reader); // get double failed + ASSERT_FLOAT_EQ(d, -1.0); // won't change + } + + // test json writer + JsonWriter writer; + // about double nan, inf + double nan = std::numeric_limits::quiet_NaN(); + double inf = std::numeric_limits::infinity(); + writer.StartArray(); + writer << nan; + writer << inf; + double ninf = -inf; + writer << ninf; + writer.EndArray(); + ASSERT_STREQ("[NaN,Infinity,-Infinity]", writer.GetString()); } TEST_F(APIServerTest, query) { @@ -168,7 +259,7 @@ TEST_F(APIServerTest, query) { LOG(INFO) << "exec query resp:\n" << cntl.response_attachment().to_string(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << cntl.response_attachment().to_string(); @@ -229,7 +320,7 @@ TEST_F(APIServerTest, parameterizedQuery) { LOG(INFO) << "exec query resp:\n" << cntl.response_attachment().to_string(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << cntl.response_attachment().to_string(); @@ -274,7 +365,7 @@ TEST_F(APIServerTest, parameterizedQuery) { LOG(INFO) << "exec query resp:\n" << cntl.response_attachment().to_string(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << cntl.response_attachment().to_string(); @@ -587,7 +678,7 @@ TEST_F(APIServerTest, procedure) { ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); LOG(INFO) << "get sp resp: " << show_cntl.response_attachment(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -713,7 +804,7 @@ TEST_F(APIServerTest, testResultType) { ASSERT_FALSE(cntl.Failed()) << cntl.ErrorText(); LOG(INFO) << "exec deployment resp:\n" << cntl.response_attachment().to_string(); - butil::rapidjson::Document document; + rapidjson::Document document; // check resp data if (document.Parse(cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() @@ -781,7 +872,7 @@ TEST_F(APIServerTest, no_common) { ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); LOG(INFO) << "get sp resp: " << show_cntl.response_attachment(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -868,7 +959,7 @@ TEST_F(APIServerTest, no_common_not_first_string) { ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); LOG(INFO) << "get sp resp: " << show_cntl.response_attachment(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -925,7 +1016,7 @@ TEST_F(APIServerTest, getDBs) { brpc::Controller show_cntl; // default is GET show_cntl.http_request().uri() = "http://127.0.0.1:8010/dbs"; env->http_channel.CallMethod(NULL, &show_cntl, NULL, NULL, NULL); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -957,7 +1048,7 @@ TEST_F(APIServerTest, getDBs) { show_cntl.http_request().uri() = "http://127.0.0.1:8010/dbs"; env->http_channel.CallMethod(NULL, &show_cntl, NULL, NULL, NULL); ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -991,7 +1082,7 @@ TEST_F(APIServerTest, getTables) { show_cntl.http_request().uri() = "http://127.0.0.1:8010/dbs/" + db_name + "/tables"; env->http_channel.CallMethod(NULL, &show_cntl, NULL, NULL, NULL); ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -1022,7 +1113,7 @@ TEST_F(APIServerTest, getTables) { show_cntl.http_request().uri() = "http://127.0.0.1:8010/dbs/" + db_name + "/tables"; env->http_channel.CallMethod(NULL, &show_cntl, NULL, NULL, NULL); ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -1047,7 +1138,7 @@ TEST_F(APIServerTest, getTables) { show_cntl.http_request().uri() = "http://127.0.0.1:8010/dbs/db_not_exist/tables"; env->http_channel.CallMethod(NULL, &show_cntl, NULL, NULL, NULL); ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -1060,7 +1151,7 @@ TEST_F(APIServerTest, getTables) { show_cntl.http_request().uri() = "http://127.0.0.1:8010/dbs/" + db_name + "/tables/" + table; env->http_channel.CallMethod(NULL, &show_cntl, NULL, NULL, NULL); ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -1076,7 +1167,7 @@ TEST_F(APIServerTest, getTables) { show_cntl.http_request().uri() = "http://127.0.0.1:8010/dbs/" + db_name + "/tables/not_exist"; env->http_channel.CallMethod(NULL, &show_cntl, NULL, NULL, NULL); ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -1089,7 +1180,7 @@ TEST_F(APIServerTest, getTables) { show_cntl.http_request().uri() = "http://127.0.0.1:8010/dbs/db_not_exist/tables/apple"; env->http_channel.CallMethod(NULL, &show_cntl, NULL, NULL, NULL); ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); - butil::rapidjson::Document document; + rapidjson::Document document; if (document.Parse(show_cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() << ", raw resp: " << show_cntl.response_attachment().to_string(); @@ -1158,7 +1249,7 @@ TEST_F(APIServerTest, jsonInput) { ASSERT_FALSE(cntl.Failed()) << cntl.ErrorText(); LOG(INFO) << "exec deployment resp:\n" << cntl.response_attachment().to_string(); - butil::rapidjson::Document document; + rapidjson::Document document; // check resp data if (document.Parse(cntl.response_attachment().to_string().c_str()).HasParseError()) { ASSERT_TRUE(false) << "response parse failed with code " << document.GetParseError() diff --git a/src/apiserver/json_helper.cc b/src/apiserver/json_helper.cc index 163bd3454ba..ccf228c40cc 100644 --- a/src/apiserver/json_helper.cc +++ b/src/apiserver/json_helper.cc @@ -18,17 +18,9 @@ #include -#include "json2pb/rapidjson.h" // rapidjson's DOM-style API - namespace openmldb { namespace apiserver { -using butil::rapidjson::Document; -using butil::rapidjson::SizeType; -using butil::rapidjson::StringBuffer; -using butil::rapidjson::Value; -using butil::rapidjson::Writer; - struct JsonReaderStackItem { enum State { BeforeStart, //!< An object/array is in the stack but it is not yet called by StartObject()/StartArray(). @@ -52,7 +44,8 @@ typedef std::stack JsonReaderStack; JsonReader::JsonReader(const char* json) : document_(), stack_(), error_(false) { document_ = new Document; - DOCUMENT->Parse(json); + // only support unquoted NaN & Inf.., so quoted string won't be parsed wrong + DOCUMENT->Parse(json); if (DOCUMENT->HasParseError()) { error_ = true; } else { @@ -273,12 +266,17 @@ void JsonReader::Next() { //////////////////////////////////////////////////////////////////////////////// // JsonWriter // We use Writer instead of PrettyWriter for performance reasons -#define WRITER (reinterpret_cast*>(writer_)) +#define WRITER \ + (reinterpret_cast, rapidjson::UTF8<>, rapidjson::CrtAllocator, \ + rapidjson::kWriteNanAndInfFlag>*>(writer_)) #define STREAM (reinterpret_cast(stream_)) -JsonWriter::JsonWriter() { // : writer_(), stream_() +// it's ok to set nan/inf flag even if we don't use them when we write them to null +// if need template, try to use boost::mpl +JsonWriter::JsonWriter() : writer_(), stream_() { stream_ = new StringBuffer; - writer_ = new Writer(*STREAM); + writer_ = new Writer, rapidjson::UTF8<>, rapidjson::CrtAllocator, + rapidjson::kWriteNanAndInfFlag>(*STREAM); } JsonWriter::~JsonWriter() { @@ -325,22 +323,22 @@ JsonWriter& JsonWriter::operator&(const bool& b) { } JsonWriter& JsonWriter::operator&(const unsigned& u) { - WRITER->AddUint(u); + WRITER->Uint(u); return *this; } JsonWriter& JsonWriter::operator&(const int& i) { - WRITER->AddInt(i); + WRITER->Int(i); return *this; } JsonWriter& JsonWriter::operator&(const int64_t& i) { - WRITER->AddInt64(i); + WRITER->Int64(i); return *this; } JsonWriter& JsonWriter::operator&(uint64_t i) { - WRITER->AddUint64(i); + WRITER->Uint64(i); return *this; } diff --git a/src/apiserver/json_helper.h b/src/apiserver/json_helper.h index b3fdf5157b5..77d445a08fa 100644 --- a/src/apiserver/json_helper.h +++ b/src/apiserver/json_helper.h @@ -20,9 +20,18 @@ #include #include +#include "rapidjson/document.h" // rapidjson's DOM-style API +#include "rapidjson/writer.h" + namespace openmldb { namespace apiserver { +using rapidjson::Document; +using rapidjson::SizeType; +using rapidjson::StringBuffer; +using rapidjson::Value; +using rapidjson::Writer; + /** \class Archiver \brief Archiver concept @@ -46,6 +55,7 @@ class JsonReader { /** \param json A non-const source json string for in-situ parsing. \note in-situ means the source JSON string will be modified after parsing. + just pass document for template read flags */ explicit JsonReader(const char* json); @@ -80,10 +90,10 @@ class JsonReader { static const bool IsReader = true; static const bool IsWriter = !IsReader; - private: - JsonReader(const JsonReader&); - JsonReader& operator=(const JsonReader&); + JsonReader& operator=(const JsonReader&) = delete; + JsonReader(const JsonReader&) = delete; + private: // PIMPL void* document_; ///< DOM result of parsing. void* stack_; ///< Stack for iterating the DOM From 5731b2bc67ca2020f90c009562fe9aa11be5d04d Mon Sep 17 00:00:00 2001 From: dl239 Date: Wed, 15 Nov 2023 20:22:32 +0800 Subject: [PATCH 102/111] feat: support truncate table statement (#3542) --- cases/plan/cmd.yaml | 16 ++ .../sql/ddl/TRUNCATE_TABLE_STATEMENT.md | 16 ++ docs/en/reference/sql/ddl/index.rst | 1 + .../ddl/TRUNCATE_TABLE_STATEMENT.md | 16 ++ docs/zh/openmldb_sql/ddl/index.rst | 1 + hybridse/include/node/node_enum.h | 1 + hybridse/src/node/sql_node.cc | 1 + hybridse/src/planv2/ast_node_converter.cc | 10 ++ src/base/status.h | 6 +- src/catalog/tablet_catalog.cc | 2 +- src/client/ns_client.cc | 13 ++ src/client/ns_client.h | 2 + src/client/tablet_client.cc | 14 ++ src/client/tablet_client.h | 2 + src/cmd/sql_cmd_test.cc | 41 +++++ src/nameserver/name_server_impl.cc | 84 ++++++++++ src/nameserver/name_server_impl.h | 4 + src/proto/name_server.proto | 11 ++ src/proto/tablet.proto | 11 ++ src/sdk/interactive.h | 144 ++++++++++++++++++ src/sdk/sql_cluster_router.cc | 89 ++++------- src/sdk/sql_cluster_router.h | 3 +- src/storage/aggregator.h | 2 + src/storage/disk_table.cc | 42 +++++ src/storage/disk_table.h | 2 + src/storage/mem_table_snapshot.cc | 34 +++++ src/storage/mem_table_snapshot.h | 2 + src/tablet/tablet_impl.cc | 118 +++++++++++++- src/tablet/tablet_impl.h | 7 +- src/tablet/tablet_impl_test.cc | 36 +++++ 30 files changed, 661 insertions(+), 70 deletions(-) create mode 100644 docs/en/reference/sql/ddl/TRUNCATE_TABLE_STATEMENT.md create mode 100644 docs/zh/openmldb_sql/ddl/TRUNCATE_TABLE_STATEMENT.md create mode 100644 src/sdk/interactive.h diff --git a/cases/plan/cmd.yaml b/cases/plan/cmd.yaml index 50b5fa94343..58eb872268f 100644 --- a/cases/plan/cmd.yaml +++ b/cases/plan/cmd.yaml @@ -649,6 +649,22 @@ cases: +-cmd_type: drop function +-if_exists: true +-args: [func1] + - id: truncate_stmt + desc: truncate + sql: TRUNCATE TABLE t1; + expect: + node_tree_str: | + +-node[CMD] + +-cmd_type: truncate table + +-args: [t1] + - id: truncate_stmt_db + desc: truncate + sql: TRUNCATE TABLE db1.t1; + expect: + node_tree_str: | + +-node[CMD] + +-cmd_type: truncate table + +-args: [db1, t1] - id: exit_stmt desc: exit statement sql: EXIT; diff --git a/docs/en/reference/sql/ddl/TRUNCATE_TABLE_STATEMENT.md b/docs/en/reference/sql/ddl/TRUNCATE_TABLE_STATEMENT.md new file mode 100644 index 00000000000..3bd9360d920 --- /dev/null +++ b/docs/en/reference/sql/ddl/TRUNCATE_TABLE_STATEMENT.md @@ -0,0 +1,16 @@ +# TRUNCATE TABLE + +``` +TRUNCATE TABLE table_name +``` + +`TRUNCATE TABLE` statement is used to clear the specified table. + +## Example: clear t1 + +```sql +TRUNCATE TABLE t1; +-- Truncate table t1? yes/no +-- yes +-- SUCCEED +``` \ No newline at end of file diff --git a/docs/en/reference/sql/ddl/index.rst b/docs/en/reference/sql/ddl/index.rst index dbc94cc1f3d..bff9db48fb0 100644 --- a/docs/en/reference/sql/ddl/index.rst +++ b/docs/en/reference/sql/ddl/index.rst @@ -24,3 +24,4 @@ Data Definition Statement (DDL) SHOW_FUNCTIONS DROP_FUNCTION SHOW_CREATE_TABLE_STATEMENT + TRUNCATE_TABLE_STATEMENT diff --git a/docs/zh/openmldb_sql/ddl/TRUNCATE_TABLE_STATEMENT.md b/docs/zh/openmldb_sql/ddl/TRUNCATE_TABLE_STATEMENT.md new file mode 100644 index 00000000000..8ffb623f26f --- /dev/null +++ b/docs/zh/openmldb_sql/ddl/TRUNCATE_TABLE_STATEMENT.md @@ -0,0 +1,16 @@ +# TRUNCATE TABLE + +``` +TRUNCATE TABLE table_name +``` + +`TRUNCATE TABLE`语句用清空指定的表。 + +## Example: 清空t1表 + +```sql +TRUNCATE TABLE t1; +-- Truncate table t1? yes/no +-- yes +-- SUCCEED +``` \ No newline at end of file diff --git a/docs/zh/openmldb_sql/ddl/index.rst b/docs/zh/openmldb_sql/ddl/index.rst index efd36734261..9e420def154 100644 --- a/docs/zh/openmldb_sql/ddl/index.rst +++ b/docs/zh/openmldb_sql/ddl/index.rst @@ -24,3 +24,4 @@ SHOW_FUNCTIONS DROP_FUNCTION SHOW_CREATE_TABLE_STATEMENT + TRUNCATE_TABLE_STATEMENT \ No newline at end of file diff --git a/hybridse/include/node/node_enum.h b/hybridse/include/node/node_enum.h index fc1dde18b07..baa3bdb2afe 100644 --- a/hybridse/include/node/node_enum.h +++ b/hybridse/include/node/node_enum.h @@ -285,6 +285,7 @@ enum CmdType { kCmdDropFunction, kCmdShowJobLog, kCmdShowCreateTable, + kCmdTruncate, kCmdFake, // not a real cmd, for testing purpose only kLastCmd = kCmdFake, }; diff --git a/hybridse/src/node/sql_node.cc b/hybridse/src/node/sql_node.cc index 3847366c148..a0e8e0bec8f 100644 --- a/hybridse/src/node/sql_node.cc +++ b/hybridse/src/node/sql_node.cc @@ -76,6 +76,7 @@ static absl::flat_hash_map CreateCmdTypeNamesMap() { {CmdType::kCmdDropFunction, "drop function"}, {CmdType::kCmdShowFunctions, "show functions"}, {CmdType::kCmdShowJobLog, "show joblog"}, + {CmdType::kCmdTruncate, "truncate table"}, }; for (auto kind = 0; kind < CmdType::kLastCmd; ++kind) { DCHECK(map.find(static_cast(kind)) != map.end()); diff --git a/hybridse/src/planv2/ast_node_converter.cc b/hybridse/src/planv2/ast_node_converter.cc index f2fa6fad4e2..2592c19fb99 100644 --- a/hybridse/src/planv2/ast_node_converter.cc +++ b/hybridse/src/planv2/ast_node_converter.cc @@ -611,6 +611,16 @@ base::Status ConvertStatement(const zetasql::ASTStatement* statement, node::Node *output = node; break; } + case zetasql::AST_TRUNCATE_STATEMENT: { + const zetasql::ASTTruncateStatement* truncate_statement = + statement->GetAsOrNull(); + std::vector names; + CHECK_STATUS(AstPathExpressionToStringList(truncate_statement->target_path(), names)); + auto node = + dynamic_cast(node_manager->MakeCmdNode(node::CmdType::kCmdTruncate, names)); + *output = node; + break; + } case zetasql::AST_DROP_FUNCTION_STATEMENT: { const zetasql::ASTDropFunctionStatement* drop_fun_statement = statement->GetAsOrNull(); diff --git a/src/base/status.h b/src/base/status.h index 4a4eb867724..a6854e287b6 100644 --- a/src/base/status.h +++ b/src/base/status.h @@ -93,6 +93,7 @@ enum ReturnCode { kExceedMaxMemory = 160, kInvalidArgs = 161, kCheckIndexFailed = 162, + kCatalogUpdateFailed = 163, kNameserverIsNotLeader = 300, kAutoFailoverIsEnabled = 301, kEndpointIsNotExist = 302, @@ -127,7 +128,10 @@ enum ReturnCode { kCheckParameterFailed = 331, kCreateProcedureFailedOnTablet = 332, kCreateFunctionFailedOnTablet = 333, - kOPAlreadyExists = 317, + kOPAlreadyExists = 334, + kOffsetMismatch = 335, + kGetTabletFailed = 336, + kTruncateTableFailed = 337, kReplicaClusterAliasDuplicate = 400, kConnectRelicaClusterZkFailed = 401, kNotSameReplicaName = 402, diff --git a/src/catalog/tablet_catalog.cc b/src/catalog/tablet_catalog.cc index cdf979167fc..233077f32fb 100644 --- a/src/catalog/tablet_catalog.cc +++ b/src/catalog/tablet_catalog.cc @@ -213,7 +213,7 @@ void TabletTableHandler::AddTable(std::shared_ptr<::openmldb::storage::Table> ta do { old_tables = std::atomic_load_explicit(&tables_, std::memory_order_acquire); new_tables = std::make_shared(*old_tables); - new_tables->emplace(table->GetPid(), table); + new_tables->insert_or_assign(table->GetPid(), table); } while (!atomic_compare_exchange_weak(&tables_, &old_tables, new_tables)); } diff --git a/src/client/ns_client.cc b/src/client/ns_client.cc index 1475d634bd0..2b3a4a4ad45 100644 --- a/src/client/ns_client.cc +++ b/src/client/ns_client.cc @@ -297,6 +297,19 @@ bool NsClient::DropTable(const std::string& db, const std::string& name, std::st return false; } +base::Status NsClient::TruncateTable(const std::string& db, const std::string& name) { + ::openmldb::nameserver::TruncateTableRequest request; + request.set_name(name); + request.set_db(db); + ::openmldb::nameserver::TruncateTableResponse response; + bool ok = client_.SendRequest(&::openmldb::nameserver::NameServer_Stub::TruncateTable, &request, &response, + FLAGS_request_timeout_ms, 1); + if (ok && response.code() == 0) { + return {}; + } + return {response.code(), response.msg()}; +} + bool NsClient::SyncTable(const std::string& name, const std::string& cluster_alias, uint32_t pid, std::string& msg) { ::openmldb::nameserver::SyncTableRequest request; request.set_name(name); diff --git a/src/client/ns_client.h b/src/client/ns_client.h index 503885dce48..467219f4ec8 100644 --- a/src/client/ns_client.h +++ b/src/client/ns_client.h @@ -112,6 +112,8 @@ class NsClient : public Client { bool DropTable(const std::string& db, const std::string& name, std::string& msg); // NOLINT + base::Status TruncateTable(const std::string& db, const std::string& name); + bool SyncTable(const std::string& name, const std::string& cluster_alias, uint32_t pid, std::string& msg); // NOLINT diff --git a/src/client/tablet_client.cc b/src/client/tablet_client.cc index 938a1b747d7..3a51a7e8f94 100644 --- a/src/client/tablet_client.cc +++ b/src/client/tablet_client.cc @@ -153,6 +153,20 @@ bool TabletClient::SQLBatchRequestQuery(const std::string& db, const std::string return true; } +base::Status TabletClient::TruncateTable(uint32_t tid, uint32_t pid) { + ::openmldb::api::TruncateTableRequest request; + ::openmldb::api::TruncateTableResponse response; + request.set_tid(tid); + request.set_pid(pid); + if (!client_.SendRequest(&::openmldb::api::TabletServer_Stub::TruncateTable, &request, &response, + FLAGS_request_timeout_ms, 1)) { + return {base::ReturnCode::kRPCError, "send request failed!"}; + } else if (response.code() == 0) { + return {}; + } + return {response.code(), response.msg()}; +} + base::Status TabletClient::CreateTable(const ::openmldb::api::TableMeta& table_meta) { ::openmldb::api::CreateTableRequest request; ::openmldb::api::TableMeta* table_meta_ptr = request.mutable_table_meta(); diff --git a/src/client/tablet_client.h b/src/client/tablet_client.h index f9dfd897361..ec3ab346cc7 100644 --- a/src/client/tablet_client.h +++ b/src/client/tablet_client.h @@ -56,6 +56,8 @@ class TabletClient : public Client { base::Status CreateTable(const ::openmldb::api::TableMeta& table_meta); + base::Status TruncateTable(uint32_t tid, uint32_t pid); + bool UpdateTableMetaForAddField(uint32_t tid, const std::vector& cols, const openmldb::common::VersionPair& pair, std::string& msg); // NOLINT diff --git a/src/cmd/sql_cmd_test.cc b/src/cmd/sql_cmd_test.cc index 8f17d276be6..a1637e369d9 100644 --- a/src/cmd/sql_cmd_test.cc +++ b/src/cmd/sql_cmd_test.cc @@ -1078,6 +1078,47 @@ TEST_P(DBSDKTest, DeployWithBias) { ASSERT_TRUE(cs->GetNsClient()->DropDatabase(db, msg)); } +TEST_P(DBSDKTest, Truncate) { + auto cli = GetParam(); + sr = cli->sr; + std::string db_name = "test2"; + std::string table_name = "test1"; + std::string ddl = "create table test1 (c1 string, c2 int, c3 bigint, INDEX(KEY=c1, ts=c3));"; + ProcessSQLs(sr, { + "set @@execute_mode = 'online'", + absl::StrCat("create database ", db_name, ";"), + absl::StrCat("use ", db_name, ";"), + ddl, + }); + hybridse::sdk::Status status; + sr->ExecuteSQL(absl::StrCat("truncate table ", table_name, ";"), &status); + ASSERT_TRUE(status.IsOK()) << status.ToString(); + auto res = sr->ExecuteSQL(absl::StrCat("select * from ", table_name, ";"), &status); + ASSERT_EQ(res->Size(), 0); + for (int i = 0; i < 10; i++) { + std::string key = absl::StrCat("key", i); + for (int j = 0; j < 10; j++) { + uint64_t ts = 1000 + j; + sr->ExecuteSQL(absl::StrCat("insert into ", table_name, " values ('", key, "', 11, ", ts, ");"), &status); + } + } + + res = sr->ExecuteSQL(absl::StrCat("select * from ", table_name, ";"), &status); + ASSERT_EQ(res->Size(), 100); + sr->ExecuteSQL(absl::StrCat("truncate table ", table_name, ";"), &status); + ASSERT_TRUE(status.IsOK()) << status.ToString(); + res = sr->ExecuteSQL(absl::StrCat("select * from ", table_name, ";"), &status); + ASSERT_EQ(res->Size(), 0); + sr->ExecuteSQL(absl::StrCat("insert into ", table_name, " values ('aa', 11, 100);"), &status); + res = sr->ExecuteSQL(absl::StrCat("select * from ", table_name, ";"), &status); + ASSERT_EQ(res->Size(), 1); + ProcessSQLs(sr, { + absl::StrCat("use ", db_name, ";"), + absl::StrCat("drop table ", table_name), + absl::StrCat("drop database ", db_name), + }); +} + TEST_P(DBSDKTest, DeletetRange) { auto cli = GetParam(); sr = cli->sr; diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index c76054d622b..35d11f4d6ec 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -3716,6 +3716,69 @@ void NameServerImpl::CreateTable(RpcController* controller, const CreateTableReq } } +void NameServerImpl::TruncateTable(RpcController* controller, const TruncateTableRequest* request, + TruncateTableResponse* response, Closure* done) { + brpc::ClosureGuard done_guard(done); + const std::string& db = request->db(); + const std::string& name = request->name(); + std::shared_ptr<::openmldb::nameserver::TableInfo> table_info; + { + std::lock_guard lock(mu_); + if (!GetTableInfoUnlock(request->name(), request->db(), &table_info)) { + PDLOG(WARNING, "table[%s] does not exist in db [%s]", name.c_str(), db.c_str()); + response->set_code(::openmldb::base::ReturnCode::kTableIsNotExist); + response->set_msg("table does not exist"); + return; + } + if (IsExistActiveOp(db, name)) { + PDLOG(WARNING, "there is active op. db [%s] name [%s]", db.c_str(), name.c_str()); + response->set_code(::openmldb::base::ReturnCode::kOPAlreadyExists); + response->set_msg("there is active op"); + return; + } + } + uint32_t tid = table_info->tid(); + for (const auto& partition : table_info->table_partition()) { + uint32_t offset = 0; + for (const auto& partition_meta : partition.partition_meta()) { + if (partition_meta.offset() != offset) { + if (offset == 0) { + offset = partition_meta.offset(); + } else { + PDLOG(WARNING, "table[%s] partition [%d] offset mismatch", name.c_str(), partition.pid()); + response->set_code(::openmldb::base::ReturnCode::kOffsetMismatch); + response->set_msg("partition offset mismatch"); + return; + } + } + } + } + for (const auto& partition : table_info->table_partition()) { + uint32_t pid = partition.pid(); + for (const auto& partition_meta : partition.partition_meta()) { + const auto& endpoint = partition_meta.endpoint(); + auto tablet_ptr = GetTablet(endpoint); + if (!tablet_ptr) { + PDLOG(WARNING, "endpoint[%s] can not find client", endpoint.c_str()); + response->set_code(::openmldb::base::ReturnCode::kGetTabletFailed); + response->set_msg("fail to get client, endpint " + endpoint); + return; + } + auto status = tablet_ptr->client_->TruncateTable(tid, pid); + if (!status.OK()) { + PDLOG(WARNING, "truncate failed, tid[%u] pid[%u] endpoint[%s] msg [%s]", + tid, pid, endpoint.c_str(), status.GetMsg().c_str()); + response->set_code(::openmldb::base::ReturnCode::kTruncateTableFailed); + response->set_msg(status.GetMsg()); + return; + } + } + } + PDLOG(INFO, "truncate success, db[%s] name[%s]", db.c_str(), name.c_str()); + response->set_code(::openmldb::base::ReturnCode::kOk); + response->set_msg("ok"); +} + bool NameServerImpl::SaveTableInfo(std::shared_ptr table_info) { std::string table_value; table_info->SerializeToString(&table_value); @@ -10571,5 +10634,26 @@ bool NameServerImpl::IsExistActiveOp(const std::string& db, const std::string& n return false; } +bool NameServerImpl::IsExistActiveOp(const std::string& db, const std::string& name) { + for (const auto& op_list : task_vec_) { + if (op_list.empty()) { + continue; + } + for (const auto& op_data : op_list) { + if (!db.empty() && op_data->op_info_.db() != db) { + continue; + } + if (!name.empty() && op_data->op_info_.name() != name) { + continue; + } + if (op_data->op_info_.task_status() == api::TaskStatus::kInited || + op_data->op_info_.task_status() == api::TaskStatus::kDoing) { + return true; + } + } + } + return false; +} + } // namespace nameserver } // namespace openmldb diff --git a/src/nameserver/name_server_impl.h b/src/nameserver/name_server_impl.h index b9755c4aa1c..593c0bb536f 100644 --- a/src/nameserver/name_server_impl.h +++ b/src/nameserver/name_server_impl.h @@ -165,6 +165,9 @@ class NameServerImpl : public NameServer { void DropTable(RpcController* controller, const DropTableRequest* request, GeneralResponse* response, Closure* done); + void TruncateTable(RpcController* controller, const TruncateTableRequest* request, + TruncateTableResponse* response, Closure* done); + void AddTableField(RpcController* controller, const AddTableFieldRequest* request, GeneralResponse* response, Closure* done); @@ -688,6 +691,7 @@ class NameServerImpl : public NameServer { bool IsExistDataBase(const std::string& db); bool IsExistActiveOp(const std::string& db, const std::string& name, api::OPType op_type); + bool IsExistActiveOp(const std::string& db, const std::string& name); private: std::mutex mu_; diff --git a/src/proto/name_server.proto b/src/proto/name_server.proto index 08383b4f7c0..219b83a0b73 100755 --- a/src/proto/name_server.proto +++ b/src/proto/name_server.proto @@ -121,6 +121,16 @@ message DropTableRequest { optional string db = 4 [default = ""]; } +message TruncateTableRequest { + optional string name = 1; + optional string db = 2; +} + +message TruncateTableResponse { + optional int32 code = 1; + optional string msg = 2; +} + message LoadTableRequest { optional string name = 1; optional string endpoint = 2; @@ -531,6 +541,7 @@ message DeploySQLResponse { service NameServer { rpc CreateTable(CreateTableRequest) returns (GeneralResponse); rpc DropTable(DropTableRequest) returns (GeneralResponse); + rpc TruncateTable(TruncateTableRequest) returns (TruncateTableResponse); rpc ShowTablet(ShowTabletRequest) returns (ShowTabletResponse); rpc ShowTable(ShowTableRequest) returns (ShowTableResponse); rpc MakeSnapshotNS(MakeSnapshotNSRequest) returns (GeneralResponse); diff --git a/src/proto/tablet.proto b/src/proto/tablet.proto index 0938c9d965c..ee0ec5beae1 100755 --- a/src/proto/tablet.proto +++ b/src/proto/tablet.proto @@ -363,6 +363,16 @@ message DropTableResponse { optional string msg = 2; } +message TruncateTableRequest { + optional int32 tid = 1; + optional int32 pid = 2; +} + +message TruncateTableResponse { + optional int32 code = 1; + optional string msg = 2; +} + message GetTableSchemaRequest { optional int32 tid = 1; optional int32 pid = 2; @@ -905,6 +915,7 @@ service TabletServer { rpc CreateTable(CreateTableRequest) returns (CreateTableResponse); rpc LoadTable(LoadTableRequest) returns (GeneralResponse); rpc DropTable(DropTableRequest) returns (DropTableResponse); + rpc TruncateTable(TruncateTableRequest) returns (TruncateTableResponse); rpc GetTableStatus(GetTableStatusRequest) returns (GetTableStatusResponse); rpc GetTableSchema(GetTableSchemaRequest) returns (GetTableSchemaResponse); rpc GetTableFollower(GetTableFollowerRequest) returns (GetTableFollowerResponse); diff --git a/src/sdk/interactive.h b/src/sdk/interactive.h new file mode 100644 index 00000000000..c4480da9bc7 --- /dev/null +++ b/src/sdk/interactive.h @@ -0,0 +1,144 @@ +/* + * Copyright 2021 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef SRC_SDK_INTERACTIVE_H_ +#define SRC_SDK_INTERACTIVE_H_ + +#include +#include + +#include "base/status.h" + +namespace openmldb { +namespace sdk { + +inline const std::string DROP_TABLE_MSG = + "DROP TABLE is a dangerous operation. Once deleted, it is very difficult to recover. \n" + "You may also note that: \n" + "- If a snapshot of a partition is being generated while dropping a table, " + "the partition will not be deleted successfully.\n" + "- By default, the deleted data is moved to the folder `recycle`.\n" + "Please refer to this link for more details: " + base::NOTICE_URL; + +inline const std::string DROP_DEPLOYMENT_MSG = + "- DROP DEPLOYMENT will not delete the index that is created automatically.\n" + "- DROP DEPLOYMENT will not delete data in the pre-aggregation table in the long window setting."; + +inline const std::string DROP_INDEX_MSG = + "DROP INDEX is a dangerous operation. Once deleted, it is very difficult to recover.\n" + "You may also note that: \n" + "- You have to wait for 2 garbage collection intervals (gc_interval) to create the same index.\n" + "- The index will not be deleted immediately, " + "it remains until after 2 garbage collection intervals.\n" + "Please refer to the doc for more details: " + base::NOTICE_URL; + +inline const std::string DROP_FUNCTION_MSG = + "This will lead to execution failure or system crash " + "if any active deployment is using the function."; + +enum class CmdType { + kDrop = 1, + kTruncate = 2, +}; + +enum class TargetType { + kTable = 1, + kDeployment = 2, + kIndex = 3, + kFunction = 4, + kProcedure = 5, +}; + +class InteractiveValidator { + public: + InteractiveValidator() = default; + explicit InteractiveValidator(bool interactive) : interactive_(interactive) {} + + bool Interactive() { return interactive_; } + void SetInteractive(bool interactive) { interactive_ = interactive; } + + bool Check(CmdType cmd_type, TargetType target, const std::string& name) { + if (!interactive_) { + return true; + } + std::string msg; + if (cmd_type == CmdType::kDrop) { + switch (target) { + case TargetType::kTable: + msg = DROP_TABLE_MSG; + break; + case TargetType::kDeployment: + msg = DROP_DEPLOYMENT_MSG; + break; + case TargetType::kIndex: + msg = DROP_INDEX_MSG; + break; + case TargetType::kFunction: + msg = DROP_FUNCTION_MSG; + break; + default: + break; + } + } + if (!msg.empty()) { + printf("%s\n", msg.c_str()); + } + std::string cmd_str = CmdType2Str(cmd_type); + std::string target_str = TargetType2Str(target); + printf("%s %s %s? yes/no\n", cmd_str.c_str(), target_str.c_str(), name.c_str()); + std::string input; + std::cin >> input; + std::transform(input.begin(), input.end(), input.begin(), ::tolower); + if (input != "yes") { + printf("'%s %s' cmd is canceled!\n", cmd_str.c_str(), name.c_str()); + return false; + } + return true; + } + + private: + std::string CmdType2Str(CmdType type) { + if (type == CmdType::kDrop) { + return "Drop"; + } else { + return "Truncate"; + } + } + + std::string TargetType2Str(TargetType type) { + switch (type) { + case TargetType::kTable: + return "table"; + case TargetType::kDeployment: + return "deployment"; + case TargetType::kIndex: + return "index"; + case TargetType::kFunction: + return "function"; + default: + return ""; + } + return ""; + } + + private: + bool interactive_ = false; +}; + +} // namespace sdk +} // namespace openmldb + +#endif // SRC_SDK_INTERACTIVE_H_ diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index 2556eac681e..d838870d65b 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -210,7 +210,7 @@ class BatchQueryFutureImpl : public QueryFuture { SQLClusterRouter::SQLClusterRouter(const SQLRouterOptions& options) : options_(std::make_shared(options)), is_cluster_mode_(true), - interactive_(false), + interactive_validator_(), cluster_sdk_(nullptr), mu_(), rand_(::baidu::common::timer::now_time()) {} @@ -218,7 +218,7 @@ SQLClusterRouter::SQLClusterRouter(const SQLRouterOptions& options) SQLClusterRouter::SQLClusterRouter(const StandaloneOptions& options) : options_(std::make_shared(options)), is_cluster_mode_(false), - interactive_(false), + interactive_validator_(), cluster_sdk_(nullptr), mu_(), rand_(::baidu::common::timer::now_time()) {} @@ -226,7 +226,7 @@ SQLClusterRouter::SQLClusterRouter(const StandaloneOptions& options) SQLClusterRouter::SQLClusterRouter(DBSDK* sdk) : options_(), is_cluster_mode_(sdk->IsClusterMode()), - interactive_(false), + interactive_validator_(), cluster_sdk_(sdk), mu_(), rand_(::baidu::common::timer::now_time()) { @@ -1818,7 +1818,7 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h } case hybridse::node::kCmdDropFunction: { std::string name = cmd_node->GetArgs()[0]; - if (!CheckAnswerIfInteractive("function", name)) { + if (!interactive_validator_.Check(CmdType::kDrop, TargetType::kFunction, name)) { return {}; } auto base_status = ns_ptr->DropFunction(name, cmd_node->IsIfExists()); @@ -1874,7 +1874,7 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h return {}; } std::string sp_name = cmd_node->GetArgs()[0]; - if (!CheckAnswerIfInteractive("procedure", sp_name)) { + if (!interactive_validator_.Check(CmdType::kDrop, TargetType::kProcedure, sp_name)) { return {}; } if (ns_ptr->DropProcedure(db, sp_name, msg)) { @@ -1944,7 +1944,7 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h *status = {StatusCode::kCmdError, sp ? "not a deployment" : "deployment not found"}; return {}; } - if (!CheckAnswerIfInteractive("deployment", deploy_name)) { + if (!interactive_validator_.Check(CmdType::kDrop, TargetType::kDeployment, deploy_name)) { return {}; } if (ns_ptr->DropProcedure(db_name, deploy_name, msg)) { @@ -2021,15 +2021,11 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h *status = {}; std::string db_name = db; std::string table_name; - if (cmd_node->GetArgs().size() == 2) { - db_name = cmd_node->GetArgs()[0]; - table_name = cmd_node->GetArgs()[1]; - } else if (cmd_node->GetArgs().size() == 1) { - table_name = cmd_node->GetArgs()[0]; - } else { - *status = {StatusCode::kCmdError, "Invalid Cmd Args size"}; + if (!ParseNamesFromArgs(db, cmd_node->GetArgs(), &db_name, &table_name).IsOK()) { + *status = {StatusCode::kCmdError, msg}; + return {}; } - if (!CheckAnswerIfInteractive("table", table_name)) { + if (!interactive_validator_.Check(CmdType::kDrop, TargetType::kTable, table_name)) { return {}; } if (DropTable(db_name, table_name, cmd_node->IsIfExists(), status)) { @@ -2037,6 +2033,23 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h } return {}; } + case hybridse::node::kCmdTruncate: { + *status = {}; + std::string db_name; + std::string table_name; + if (!ParseNamesFromArgs(db, cmd_node->GetArgs(), &db_name, &table_name).IsOK()) { + *status = {StatusCode::kCmdError, msg}; + return {}; + } + if (!interactive_validator_.Check(CmdType::kTruncate, TargetType::kTable, table_name)) { + return {}; + } + auto base_status = ns_ptr->TruncateTable(db_name, table_name); + if (!base_status.OK()) { + *status = {StatusCode::kCmdError, base_status.GetMsg()}; + } + return {}; + } case hybridse::node::kCmdDropIndex: { std::string db_name = db; std::string table_name; @@ -2052,7 +2065,7 @@ std::shared_ptr SQLClusterRouter::HandleSQLCmd(const h *status = {StatusCode::kCmdError, "Invalid Cmd Args size"}; return {}; } - if (!CheckAnswerIfInteractive("index", index_name + " on " + table_name)) { + if (!interactive_validator_.Check(CmdType::kDrop, TargetType::kIndex, index_name + " on " + table_name)) { return {}; } ret = ns_ptr->DeleteIndex(db_name, table_name, index_name, msg); @@ -2114,7 +2127,7 @@ base::Status SQLClusterRouter::HandleSQLCreateTable(hybridse::node::CreatePlanNo if (!ns_ptr->CreateTable(table_info, create_node->GetIfNotExist(), msg)) { return base::Status(base::ReturnCode::kSQLCmdRunError, msg); } - if (interactive_ && table_info.column_key_size() == 0) { + if (interactive_validator_.Interactive() && table_info.column_key_size() == 0) { return base::Status{base::ReturnCode::kOk, "As there is no index specified, a default index type `absolute 0` will be created. " "The data attached to the index will never expire to be deleted. " @@ -3078,10 +3091,8 @@ ::hybridse::sdk::Status SQLClusterRouter::SetVariable(hybridse::node::SetPlanNod } ::hybridse::sdk::Status SQLClusterRouter::ParseNamesFromArgs(const std::string& db, - const std::vector& args, std::string* db_name, - std::string* name) { + const std::vector& args, std::string* db_name, std::string* name) { if (args.size() == 1) { - // only sp name, no db_name if (db.empty()) { return {StatusCode::kCmdError, "Please enter database first"}; } @@ -3096,44 +3107,6 @@ ::hybridse::sdk::Status SQLClusterRouter::ParseNamesFromArgs(const std::string& return {}; } -bool SQLClusterRouter::CheckAnswerIfInteractive(const std::string& drop_type, const std::string& name) { - if (interactive_) { - std::string msg; - if (drop_type == "table") { - msg = "DROP TABLE is a dangerous operation. Once deleted, it is very difficult to recover. \n" - "You may also note that: \n" - "- If a snapshot of a partition is being generated while dropping a table, " - "the partition will not be deleted successfully.\n" - "- By default, the deleted data is moved to the folder `recycle`.\n" - "Please refer to this link for more details: " + base::NOTICE_URL; - } else if (drop_type == "deployment") { - msg = "- DROP DEPLOYMENT will not delete the index that is created automatically.\n" - "- DROP DEPLOYMENT will not delete data in the pre-aggregation table in the long window setting."; - } else if (drop_type == "index") { - msg = "DROP INDEX is a dangerous operation. Once deleted, it is very difficult to recover.\n" - "You may also note that: \n" - "- You have to wait for 2 garbage collection intervals (gc_interval) to create the same index.\n" - "- The index will not be deleted immediately, " - "it remains until after 2 garbage collection intervals.\n" - "Please refer to the doc for more details: " + base::NOTICE_URL; - } else if (drop_type == "function") { - msg = "This will lead to execution failure or system crash if any active deployment is using the function."; - } - if (!msg.empty()) { - printf("%s\n", msg.c_str()); - } - printf("Drop %s %s? yes/no\n", drop_type.c_str(), name.c_str()); - std::string input; - std::cin >> input; - std::transform(input.begin(), input.end(), input.begin(), ::tolower); - if (input != "yes") { - printf("'Drop %s' cmd is canceled!\n", name.c_str()); - return false; - } - } - return true; -} - std::string SQLClusterRouter::GetDatabase() { std::lock_guard<::openmldb::base::SpinMutex> lock(mu_); return db_; @@ -3144,7 +3117,7 @@ void SQLClusterRouter::SetDatabase(const std::string& db) { db_ = db; } -void SQLClusterRouter::SetInteractive(bool value) { interactive_ = value; } +void SQLClusterRouter::SetInteractive(bool value) { interactive_validator_.SetInteractive(value); } ::openmldb::base::Status SQLClusterRouter::SaveResultSet(const std::string& file_path, const std::shared_ptr& options_map, diff --git a/src/sdk/sql_cluster_router.h b/src/sdk/sql_cluster_router.h index d2e6b52b790..f5661c9a1bb 100644 --- a/src/sdk/sql_cluster_router.h +++ b/src/sdk/sql_cluster_router.h @@ -34,6 +34,7 @@ #include "nameserver/system_table.h" #include "sdk/db_sdk.h" #include "sdk/file_option_parser.h" +#include "sdk/interactive.h" #include "sdk/sql_cache.h" #include "sdk/sql_router.h" #include "sdk/table_reader_impl.h" @@ -421,7 +422,7 @@ class SQLClusterRouter : public SQLRouter { std::string db_; std::map session_variables_; bool is_cluster_mode_; - bool interactive_; + InteractiveValidator interactive_validator_; DBSDK* cluster_sdk_; std::map>>> input_lru_cache_; diff --git a/src/storage/aggregator.h b/src/storage/aggregator.h index 035b126518a..373e23633cd 100644 --- a/src/storage/aggregator.h +++ b/src/storage/aggregator.h @@ -157,6 +157,8 @@ class Aggregator { // set the filter column info that not initialized in constructor bool SetFilter(absl::string_view filter_col); + std::shared_ptr
    GetAggTable() { return aggr_table_; } + protected: codec::Schema base_table_schema_; diff --git a/src/storage/disk_table.cc b/src/storage/disk_table.cc index 8484eee1315..b41c9f8fd3c 100644 --- a/src/storage/disk_table.cc +++ b/src/storage/disk_table.cc @@ -363,6 +363,48 @@ bool DiskTable::Get(uint32_t idx, const std::string& pk, uint64_t ts, std::strin bool DiskTable::Get(const std::string& pk, uint64_t ts, std::string& value) { return Get(0, pk, ts, value); } +base::Status DiskTable::Truncate() { + const rocksdb::Snapshot* snapshot = db_->GetSnapshot(); + absl::Cleanup release_snapshot = [this, snapshot] { this->db_->ReleaseSnapshot(snapshot); }; + rocksdb::ReadOptions ro = rocksdb::ReadOptions(); + ro.snapshot = snapshot; + ro.prefix_same_as_start = true; + ro.pin_data = true; + rocksdb::WriteBatch batch; + for (const auto& inner_index : *(table_index_.GetAllInnerIndex())) { + uint32_t idx = inner_index->GetId(); + std::unique_ptr it(db_->NewIterator(ro, cf_hs_[idx + 1])); + it->SeekToFirst(); + if (it->Valid()) { + std::string start_key(it->key().data(), it->key().size()); + it->SeekToLast(); + if (it->Valid()) { + rocksdb::Slice cur_pk; + uint64_t ts = 0; + uint32_t ts_idx = 0; + const auto& indexs = inner_index->GetIndex(); + std::string end_key; + if (indexs.size() > 1) { + ParseKeyAndTs(true, it->key(), &cur_pk, &ts, &ts_idx); + end_key = CombineKeyTs(cur_pk, 0, ts_idx); + } else { + ParseKeyAndTs(false, it->key(), &cur_pk, &ts, &ts_idx); + end_key = CombineKeyTs(cur_pk, 0); + } + PDLOG(INFO, "delete range. start key %s end key %s inner idx %u tid %u pid %u", + start_key.c_str(), end_key.c_str(), idx, id_, pid_); + batch.DeleteRange(cf_hs_[idx + 1], rocksdb::Slice(start_key), rocksdb::Slice(end_key)); + } + } + } + rocksdb::Status s = db_->Write(write_opts_, &batch); + if (!s.ok()) { + PDLOG(WARNING, "delete failed, tid %u pid %u msg %s", id_, pid_, s.ToString().c_str()); + return {-1, s.ToString()}; + } + return {}; +} + void DiskTable::SchedGc() { GcHead(); UpdateTTL(); diff --git a/src/storage/disk_table.h b/src/storage/disk_table.h index 8c2c5d3a71a..be549d0c2cd 100644 --- a/src/storage/disk_table.h +++ b/src/storage/disk_table.h @@ -181,6 +181,8 @@ class DiskTable : public Table { bool Delete(const ::openmldb::api::LogEntry& entry) override; + base::Status Truncate(); + bool Delete(uint32_t idx, const std::string& pk, const std::optional& start_ts, const std::optional& end_ts) override; diff --git a/src/storage/mem_table_snapshot.cc b/src/storage/mem_table_snapshot.cc index 3eaacd3e2ac..2b085df59be 100644 --- a/src/storage/mem_table_snapshot.cc +++ b/src/storage/mem_table_snapshot.cc @@ -1041,5 +1041,39 @@ ::openmldb::base::Status MemTableSnapshot::ExtractIndexData(const std::shared_pt return status; } +int MemTableSnapshot::Truncate(uint64_t offset, uint64_t term) { + if (making_snapshot_.load(std::memory_order_acquire)) { + PDLOG(INFO, "snapshot is doing now!"); + return -1; + } + if (offset < offset_) { + PDLOG(WARNING, "end_offset %lu less than offset_ %lu, do nothing", offset, offset_); + return -1; + } + making_snapshot_.store(true, std::memory_order_release); + absl::Cleanup clean = [this] { + this->making_snapshot_.store(false, std::memory_order_release); + this->delete_collector_.Clear(); + }; + MemSnapshotMeta snapshot_meta(GenSnapshotName(), snapshot_path_, FLAGS_snapshot_compression); + snapshot_meta.term = term; + snapshot_meta.count = 0; + snapshot_meta.offset = offset; + auto wh = ::openmldb::log::CreateWriteHandle(FLAGS_snapshot_compression, + snapshot_meta.snapshot_name, snapshot_meta.tmp_file_path); + if (!wh) { + PDLOG(WARNING, "fail to create file %s", snapshot_meta.tmp_file_path.c_str()); + return -1; + } + wh->EndLog(); + wh.reset(); + auto status = WriteSnapshot(snapshot_meta); + if (!status.OK()) { + PDLOG(WARNING, "write snapshot failed. tid %u pid %u msg is %s ", tid_, pid_, status.GetMsg().c_str()); + return -1; + } + return 0; +} + } // namespace storage } // namespace openmldb diff --git a/src/storage/mem_table_snapshot.h b/src/storage/mem_table_snapshot.h index caad8fd182c..54da3a8c8c4 100644 --- a/src/storage/mem_table_snapshot.h +++ b/src/storage/mem_table_snapshot.h @@ -192,6 +192,8 @@ class MemTableSnapshot : public Snapshot { int CheckDeleteAndUpdate(std::shared_ptr
    table, ::openmldb::api::LogEntry* new_entry); + int Truncate(uint64_t offset, uint64_t term); + private: // load single snapshot to table void RecoverSingleSnapshot(const std::string& path, std::shared_ptr
    table, std::atomic* g_succ_cnt, diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index 16958e3aeb2..ee0150d4548 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -2412,7 +2412,7 @@ void TabletImpl::SetExpire(RpcController* controller, const ::openmldb::api::Set } void TabletImpl::MakeSnapshotInternal(uint32_t tid, uint32_t pid, uint64_t end_offset, - std::shared_ptr<::openmldb::api::TaskInfo> task) { + std::shared_ptr<::openmldb::api::TaskInfo> task, bool is_force) { PDLOG(INFO, "MakeSnapshotInternal begin, tid[%u] pid[%u]", tid, pid); std::shared_ptr
    table; std::shared_ptr snapshot; @@ -2455,7 +2455,7 @@ void TabletImpl::MakeSnapshotInternal(uint32_t tid, uint32_t pid, uint64_t end_o uint64_t cur_offset = replicator->GetOffset(); uint64_t snapshot_offset = snapshot->GetOffset(); int ret = 0; - if (cur_offset < snapshot_offset + FLAGS_make_snapshot_threshold_offset && end_offset == 0) { + if (!is_force && cur_offset < snapshot_offset + FLAGS_make_snapshot_threshold_offset && end_offset == 0) { PDLOG(INFO, "offset can't reach the threshold. tid[%u] pid[%u] " "cur_offset[%lu], snapshot_offset[%lu] end_offset[%lu]", @@ -2528,7 +2528,7 @@ void TabletImpl::MakeSnapshot(RpcController* controller, const ::openmldb::api:: break; } } - snapshot_pool_.AddTask(boost::bind(&TabletImpl::MakeSnapshotInternal, this, tid, pid, offset, task_ptr)); + snapshot_pool_.AddTask(boost::bind(&TabletImpl::MakeSnapshotInternal, this, tid, pid, offset, task_ptr, false)); response->set_code(::openmldb::base::ReturnCode::kOk); response->set_msg("ok"); return; @@ -2562,7 +2562,7 @@ void TabletImpl::SchedMakeSnapshot() { } for (auto iter = table_set.begin(); iter != table_set.end(); ++iter) { PDLOG(INFO, "start make snapshot tid[%u] pid[%u]", iter->first, iter->second); - MakeSnapshotInternal(iter->first, iter->second, 0, std::shared_ptr<::openmldb::api::TaskInfo>()); + MakeSnapshotInternal(iter->first, iter->second, 0, std::shared_ptr<::openmldb::api::TaskInfo>(), false); } // delay task one hour later avoid execute more than one time snapshot_pool_.DelayTask(FLAGS_make_snapshot_check_interval + 60 * 60 * 1000, @@ -3389,6 +3389,110 @@ void TabletImpl::CreateTable(RpcController* controller, const ::openmldb::api::C response->set_msg("ok"); } +void TabletImpl::TruncateTable(RpcController* controller, const ::openmldb::api::TruncateTableRequest* request, + ::openmldb::api::TruncateTableResponse* response, Closure* done) { + brpc::ClosureGuard done_guard(done); + uint32_t tid = request->tid(); + uint32_t pid = request->pid(); + if (auto status = TruncateTableInternal(tid, pid); !status.OK()) { + base::SetResponseStatus(status, response); + return; + } + auto aggrs = GetAggregators(tid, pid); + if (aggrs) { + for (const auto& aggr : *aggrs) { + auto agg_table = aggr->GetAggTable(); + if (!agg_table) { + PDLOG(WARNING, "aggrate table does not exist. tid[%u] pid[%u] index pos[%u]", + tid, pid, aggr->GetIndexPos()); + response->set_code(::openmldb::base::ReturnCode::kTableIsNotExist); + response->set_msg("aggrate table does not exist"); + return; + } + uint32_t agg_tid = agg_table->GetId(); + uint32_t agg_pid = agg_table->GetPid(); + if (auto status = TruncateTableInternal(agg_tid, agg_pid); !status.OK()) { + PDLOG(WARNING, "truncate aggrate table failed. tid[%u] pid[%u] index pos[%u]", + agg_tid, agg_pid, aggr->GetIndexPos()); + base::SetResponseStatus(status, response); + return; + } + PDLOG(INFO, "truncate aggrate table success. tid[%u] pid[%u] index pos[%u]", + agg_tid, agg_pid, aggr->GetIndexPos()); + } + } + response->set_code(::openmldb::base::ReturnCode::kOk); + response->set_msg("ok"); +} + +base::Status TabletImpl::TruncateTableInternal(uint32_t tid, uint32_t pid) { + std::shared_ptr
    table; + std::shared_ptr snapshot; + std::shared_ptr replicator; + { + std::lock_guard spin_lock(spin_mutex_); + table = GetTableUnLock(tid, pid); + if (!table) { + DEBUGLOG("table does not exist. tid %u pid %u", tid, pid); + return {::openmldb::base::ReturnCode::kTableIsNotExist, "table not found"}; + } + snapshot = GetSnapshotUnLock(tid, pid); + if (!snapshot) { + PDLOG(WARNING, "snapshot does not exist. tid[%u] pid[%u]", tid, pid); + return {::openmldb::base::ReturnCode::kSnapshotIsNotExist, "snapshot not found"}; + } + replicator = GetReplicatorUnLock(tid, pid); + if (!replicator) { + PDLOG(WARNING, "replicator does not exist. tid[%u] pid[%u]", tid, pid); + return {::openmldb::base::ReturnCode::kReplicatorIsNotExist, "replicator not found"}; + } + } + if (replicator->GetOffset() == 0) { + PDLOG(INFO, "table is empty, truncate success. tid[%u] pid[%u]", tid, pid); + return {}; + } + if (table->GetTableStat() == ::openmldb::storage::kMakingSnapshot) { + PDLOG(WARNING, "making snapshot task is running now. tid[%u] pid[%u]", tid, pid); + return {::openmldb::base::ReturnCode::kTableStatusIsKmakingsnapshot, "table status is kMakingSnapshot"}; + } else if (table->GetTableStat() == ::openmldb::storage::kLoading) { + PDLOG(WARNING, "table is loading now. tid[%u] pid[%u]", tid, pid); + return {::openmldb::base::ReturnCode::kTableIsLoading, "table is loading data"}; + } + if (table->GetStorageMode() == openmldb::common::kMemory) { + auto table_meta = table->GetTableMeta(); + std::shared_ptr
    new_table; + new_table = std::make_shared(*table_meta); + if (!new_table->Init()) { + PDLOG(WARNING, "fail to init table. tid %u, pid %u", tid, pid); + return {::openmldb::base::ReturnCode::kTableMetaIsIllegal, "fail to init table"}; + } + new_table->SetTableStat(::openmldb::storage::kNormal); + { + std::lock_guard spin_lock(spin_mutex_); + tables_[tid].insert_or_assign(pid, new_table); + } + auto mem_snapshot = std::dynamic_pointer_cast(snapshot); + mem_snapshot->Truncate(replicator->GetOffset(), replicator->GetLeaderTerm()); + if (table_meta->mode() == ::openmldb::api::TableMode::kTableLeader) { + if (catalog_->AddTable(*table_meta, new_table)) { + LOG(INFO) << "add table " << table_meta->name() << " to catalog with db " << table_meta->db(); + } else { + LOG(WARNING) << "fail to add table " << table_meta->name() + << " to catalog with db " << table_meta->db(); + return {::openmldb::base::ReturnCode::kCatalogUpdateFailed, "fail to update catalog"}; + } + } + } else { + auto disk_table = std::dynamic_pointer_cast(table); + if (auto status = disk_table->Truncate(); !status.OK()) { + return {::openmldb::base::ReturnCode::kTruncateTableFailed, status.GetMsg()}; + } + snapshot_pool_.AddTask(boost::bind(&TabletImpl::MakeSnapshotInternal, this, tid, pid, 0, nullptr, true)); + } + PDLOG(INFO, "truncate table success. tid[%u] pid[%u]", tid, pid); + return {}; +} + void TabletImpl::ExecuteGc(RpcController* controller, const ::openmldb::api::ExecuteGcRequest* request, ::openmldb::api::GeneralResponse* response, Closure* done) { brpc::ClosureGuard done_guard(done); @@ -3798,13 +3902,11 @@ int TabletImpl::CreateTableInternal(const ::openmldb::api::TableMeta* table_meta return -1; } std::string table_db_path = GetDBPath(db_root_path, tid, pid); - Table* table_ptr; if (table_meta->storage_mode() == openmldb::common::kMemory) { - table_ptr = new MemTable(*table_meta); + table = std::make_shared(*table_meta); } else { - table_ptr = new DiskTable(*table_meta, table_db_path); + table = std::make_shared(*table_meta, table_db_path); } - table.reset(table_ptr); if (!table->Init()) { PDLOG(WARNING, "fail to init table. tid %u, pid %u", table_meta->tid(), table_meta->pid()); diff --git a/src/tablet/tablet_impl.h b/src/tablet/tablet_impl.h index 7207b3ab8bd..83135ad72e6 100644 --- a/src/tablet/tablet_impl.h +++ b/src/tablet/tablet_impl.h @@ -109,6 +109,9 @@ class TabletImpl : public ::openmldb::api::TabletServer { void DropTable(RpcController* controller, const ::openmldb::api::DropTableRequest* request, ::openmldb::api::DropTableResponse* response, Closure* done); + void TruncateTable(RpcController* controller, const ::openmldb::api::TruncateTableRequest* request, + ::openmldb::api::TruncateTableResponse* response, Closure* done); + void Refresh(RpcController* controller, const ::openmldb::api::RefreshRequest* request, ::openmldb::api::GeneralResponse* response, Closure* done); @@ -308,7 +311,7 @@ class TabletImpl : public ::openmldb::api::TabletServer { int CreateTableInternal(const ::openmldb::api::TableMeta* table_meta, std::string& msg); // NOLINT void MakeSnapshotInternal(uint32_t tid, uint32_t pid, uint64_t end_offset, - std::shared_ptr<::openmldb::api::TaskInfo> task); + std::shared_ptr<::openmldb::api::TaskInfo> task, bool is_force); void SendSnapshotInternal(const std::string& endpoint, uint32_t tid, uint32_t pid, uint32_t remote_tid, std::shared_ptr<::openmldb::api::TaskInfo> task); @@ -327,6 +330,8 @@ class TabletImpl : public ::openmldb::api::TabletServer { uint32_t partition_num, uint64_t last_time, std::shared_ptr<::openmldb::api::TaskInfo> task); + base::Status TruncateTableInternal(uint32_t tid, uint32_t pid); + void ExtractIndexDataInternal(std::shared_ptr<::openmldb::storage::Table> table, std::shared_ptr<::openmldb::storage::MemTableSnapshot> memtable_snapshot, const std::vector<::openmldb::common::ColumnKey>& column_key, diff --git a/src/tablet/tablet_impl_test.cc b/src/tablet/tablet_impl_test.cc index 0780e05af69..1a2de9e66d8 100644 --- a/src/tablet/tablet_impl_test.cc +++ b/src/tablet/tablet_impl_test.cc @@ -1423,6 +1423,42 @@ TEST_P(TabletImplTest, ScanWithLatestN) { ASSERT_FALSE(kv_it.Valid()); } +TEST_P(TabletImplTest, Truncate) { + ::openmldb::common::StorageMode storage_mode = GetParam(); + TabletImpl tablet; + uint32_t id = counter++; + tablet.Init(""); + ASSERT_EQ(0, CreateDefaultTable("db0", "t0", id, 1, 0, 0, kAbsoluteTime, storage_mode, &tablet)); + MockClosure closure; + for (int ts = 100; ts < 200; ts++) { + ::openmldb::api::PutRequest prequest; + PackDefaultDimension("test1", &prequest); + prequest.set_time(ts); + prequest.set_value(::openmldb::test::EncodeKV("test1", "test" + std::to_string(ts))); + prequest.set_tid(id); + prequest.set_pid(1); + ::openmldb::api::PutResponse presponse; + tablet.Put(NULL, &prequest, &presponse, &closure); + ASSERT_EQ(0, presponse.code()); + } + ::openmldb::api::TraverseRequest sr; + sr.set_tid(id); + sr.set_pid(1); + sr.set_limit(1000); + auto srp = std::make_shared<::openmldb::api::TraverseResponse>(); + tablet.Traverse(NULL, &sr, srp.get(), &closure); + ASSERT_EQ(0, srp->code()); + ASSERT_EQ(100, (signed)srp->count()); + ::openmldb::api::TruncateTableRequest tr; + tr.set_tid(id); + tr.set_pid(1); + auto trp = std::make_shared<::openmldb::api::TruncateTableResponse>(); + tablet.TruncateTable(NULL, &tr, trp.get(), &closure); + ASSERT_EQ(0, trp->code()); + tablet.Traverse(NULL, &sr, srp.get(), &closure); + ASSERT_EQ(0, srp->code()); + ASSERT_EQ(0, (signed)srp->count()); +} TEST_P(TabletImplTest, Traverse) { ::openmldb::common::StorageMode storage_mode = GetParam(); From a966e66bb1911e798dd70736de703f06c558140b Mon Sep 17 00:00:00 2001 From: HuangWei Date: Thu, 16 Nov 2023 11:55:43 +0800 Subject: [PATCH 103/111] feat: p99 metric for deployment and apiserver (#3588) --- docs/zh/maintain/monitoring.md | 32 ++- release/conf/apiserver.flags.template | 2 + release/conf/tablet.flags.template | 2 + src/apiserver/api_server_impl.cc | 22 +- src/apiserver/api_server_impl.h | 18 +- src/apiserver/api_server_test.cc | 5 +- src/apiserver/interface_provider.cc | 7 + src/apiserver/interface_provider.h | 6 +- src/client/tablet_client.cc | 2 +- src/cmd/openmldb.cc | 2 +- src/cmd/sql_cmd_test.cc | 113 +--------- src/nameserver/name_server_impl.cc | 193 ------------------ src/nameserver/name_server_impl.h | 5 - src/nameserver/name_server_test.cc | 2 - .../query_response_time/CMakeLists.txt | 7 +- .../deployment_metric_collector.cc | 43 ++++ .../deployment_metric_collector.h | 81 ++++++++ .../deployment_metric_collector_test.cc | 134 ++++++++++++ src/tablet/tablet_impl.cc | 68 +++--- src/tablet/tablet_impl.h | 54 ++--- 20 files changed, 385 insertions(+), 413 deletions(-) create mode 100644 src/statistics/query_response_time/deployment_metric_collector.cc create mode 100644 src/statistics/query_response_time/deployment_metric_collector.h create mode 100644 src/statistics/query_response_time/deployment_metric_collector_test.cc diff --git a/docs/zh/maintain/monitoring.md b/docs/zh/maintain/monitoring.md index 905644c74df..e51f0a3b8bc 100644 --- a/docs/zh/maintain/monitoring.md +++ b/docs/zh/maintain/monitoring.md @@ -31,10 +31,8 @@ OpenMLDB exporter 是以 Python 实现的 Prometheus exporter,核心是通过 2. 启动 OpenMLDB - 参见 [install_deploy](../deploy/install_deploy.md) 如何搭建 OpenMLDB。组件启动时需要保证有 flag `--enable_status_service=true`, 或者确认启动 flag 文件 (`conf/(tablet|nameserver).flags`) 中有 `--enable_status_service=true`。 + 参见 [install_deploy](../deploy/install_deploy.md) 如何搭建 OpenMLDB。组件启动时需要保证有 flag `--enable_status_service=true`, OpenMLDB启动脚本(无论是sbin或bin)都已配置为true,如果你使用个人方式启动,需要保证启动 flag 文件 (`conf/(tablet|nameserver).flags`) 中有 `--enable_status_service=true`。 - 默认启动脚本 `bin/start.sh` 开启了 server status, 不需要额外配置。 - 3. 注意:合理选择 OpenMLDB 各组件和 OpenMLDB exporter, 以及 Prometheus, Grafana 的绑定 IP 地址,确保 Grafana 可以访问到 Prometheus, 并且 Prometheus,OpenMLDB exporter 和 OpenMLDB 各个组件之间可以相互访问。 ### 部署 OpenMLDB exporter @@ -168,13 +166,6 @@ OpenMLDB 提供了 Prometheus 和 Grafana 配置文件以作参考,详见 [Ope - component status: 集群组件状态 - table status: 数据库表相关信息,如 `rows_count`, `memory_bytes` - - deploy query response time: deployment query 在 tablet 内部的运行时间 - - **除了 deploy query response time 指标外, 成功配置监控之后都可以直接查询到指标. Deploy query response time 需要全局变量 `deploy_stats` 开启后才会有数据, 在 OpenMLDB CLI 中输入 SQL:** - - ```sql - SET GLOBAL deploy_stats = 'on'; - ``` 你可以通过 @@ -184,9 +175,27 @@ OpenMLDB 提供了 Prometheus 和 Grafana 配置文件以作参考,详见 [Ope 查看完整 DB-Level 指标和帮助信息。 +通过Component-Level 指标通过Grafana聚合的DB-Level 指标(未单独声明时,time单位为us): + +- deploy query response time: deployment query 在OpenMLDB内部的运行时间,按DB.DEPLOYMENT汇总 + **需要全局变量 `deploy_stats` 开启后才会开始统计, 在 OpenMLDB CLI 中输入 SQL:** + + ```sql + SET GLOBAL deploy_stats = 'on'; + ``` + 然后,还需要执行deplpoyment,才会出现相应的指标。 + 如果SET变量为off,会清空server中的所有deployment指标并停止统计(已被Prometheus抓取的数据不影响)。 + - count:count类统计值从deploy_stats on时开始统计,不区分请求的成功和失败。 + - latency, qps:这类指标只统计`[current_time - interval, current_time]`时间窗口内的数据,interval由Tablet Server配置项`bvar_dump_interval`配置,默认为75秒。 + +- api server http time: 各API接口的处理耗时(不包含route),只监测接口耗时,不做细粒度区分,目前也不通过Grafana展示,可以通过Prometheus手动查询。目前监测`deployment`、`sp`和`query`三种方法。 + - api server route time: APIServer进行http route的耗时,通常为us级别,一般忽略不计 + +以上聚合指标的获取方式见下文。在组件指标中,deploy query response time关键字为`deployment`,api server http time关键字为`http_method`。如果指标展示不正常,可以查询组件指标定位问题。 + ### 2. Component-Level 指标 -OpenMLDB 的相关组件(即 nameserver, tablet, etc), 本身作为 BRPC server,暴露了 [Prometheus 相关指标](https://github.com/apache/incubator-brpc/blob/master/docs/en/bvar.md#export-to-prometheus), 只需要配置 Prometheus server 从对应地址拉取指标即可。对应 `prometheus_example.yml`中 `job_name=openmldb_components` 项: +OpenMLDB 的相关组件(即 nameserver, tablet, etc), 本身作为 BRPC server,暴露了 [Prometheus 相关指标](https://github.com/apache/brpc/blob/master/docs/en/bvar.md#export-to-prometheus), 只需要配置 Prometheus server 从对应地址拉取指标即可。对应 `prometheus_example.yml`中 `job_name=openmldb_components` 项: ```yaml - job_name: openmldb_components @@ -203,6 +212,7 @@ OpenMLDB 的相关组件(即 nameserver, tablet, etc), 本身作为 BRPC serve - BRPC server 进程相关信息 - 对应 BRPC server 定义的 RPC method 相关指标,例如该 RPC 的请求 `count`, `error_count`, `qps` 和 `response_time` + - Deployment 相关指标,分deployment统计,但只统计该tablet上的deployment请求。它们将通过Grafana聚合,形成最终的的集群级别Deployment指标。 通过 diff --git a/release/conf/apiserver.flags.template b/release/conf/apiserver.flags.template index 5429b305c3a..df0735c0fb5 100644 --- a/release/conf/apiserver.flags.template +++ b/release/conf/apiserver.flags.template @@ -9,3 +9,5 @@ --log_level=info #--thread_pool_size=16 +--bvar_max_dump_multi_dimension_metric_number=10 +--bvar_dump_interval=75 \ No newline at end of file diff --git a/release/conf/tablet.flags.template b/release/conf/tablet.flags.template index 29e0bd7d374..d5109a9abaf 100644 --- a/release/conf/tablet.flags.template +++ b/release/conf/tablet.flags.template @@ -99,3 +99,5 @@ # turn this option on to export openmldb metric status # --enable_status_service=false +--bvar_max_dump_multi_dimension_metric_number=10 +--bvar_dump_interval=75 diff --git a/src/apiserver/api_server_impl.cc b/src/apiserver/api_server_impl.cc index acd6ce24517..cb13414798f 100644 --- a/src/apiserver/api_server_impl.cc +++ b/src/apiserver/api_server_impl.cc @@ -22,11 +22,18 @@ #include #include "apiserver/interface_provider.h" + +#include "absl/cleanup/cleanup.h" #include "brpc/server.h" +#include "butil/time.h" namespace openmldb { namespace apiserver { +APIServerImpl::APIServerImpl(const std::string& endpoint) + : md_recorder_("rpc_server_" + endpoint.substr(endpoint.find(":") + 1), "http_method", {"method"}), + provider_("rpc_server_" + endpoint.substr(endpoint.find(":") + 1)) {} + APIServerImpl::~APIServerImpl() = default; bool APIServerImpl::Init(const sdk::ClusterOptions& options) { @@ -72,7 +79,6 @@ void APIServerImpl::Process(google::protobuf::RpcController* cntl_base, const Ht google::protobuf::Closure* done) { brpc::ClosureGuard done_guard(done); auto* cntl = dynamic_cast(cntl_base); - // The unresolved path has no slashes at the beginning(guaranteed by brpc), it's not good for url parsing auto unresolved_path = "/" + cntl->http_request().unresolved_path(); auto method = cntl->http_request().method(); @@ -81,7 +87,6 @@ void APIServerImpl::Process(google::protobuf::RpcController* cntl_base, const Ht JsonWriter writer; provider_.handle(unresolved_path, method, req_body, writer); - cntl->response_attachment().append(writer.GetString()); } @@ -110,6 +115,12 @@ std::map mode_map{ void APIServerImpl::RegisterQuery() { provider_.post("/dbs/:db_name", [this](const InterfaceProvider::Params& param, const butil::IOBuf& req_body, JsonWriter& writer) { + auto start = absl::Now(); + absl::Cleanup method_latency = [this, start]() { + // TODO(hw): query should split into async/sync, online/offline? + absl::Duration time = absl::Now() - start; + *md_recorder_.get_stats({"query"}) << absl::ToInt64Microseconds(time); + }; auto resp = GeneralResp(); auto db_it = param.find("db_name"); if (db_it == param.end()) { @@ -303,7 +314,7 @@ absl::Status APIServerImpl::JsonMap2SQLRequestRow(const Value& non_common_cols_v if (sch->GetColumnType(i) == hybridse::sdk::kTypeString) { auto v = non_common_cols_v.FindMember(sch->GetColumnName(i).c_str()); if (v == non_common_cols_v.MemberEnd()) { - return absl::InvalidArgumentError("can't find " + sch->GetColumnName(i)); + return absl::InvalidArgumentError("can't find col " + sch->GetColumnName(i)); } str_len_sum += v->value.GetStringLength(); } @@ -421,6 +432,11 @@ void APIServerImpl::RegisterExecSP() { void APIServerImpl::ExecuteProcedure(bool has_common_col, const InterfaceProvider::Params& param, const butil::IOBuf& req_body, JsonWriter& writer) { + auto start = absl::Now(); + absl::Cleanup method_latency = [this, start, has_common_col]() { + absl::Duration time = absl::Now() - start; + *md_recorder_.get_stats({has_common_col ? "sp" : "deployment"}) << absl::ToInt64Microseconds(time); + }; auto resp = GeneralResp(); auto db_it = param.find("db_name"); auto sp_it = param.find("sp_name"); diff --git a/src/apiserver/api_server_impl.h b/src/apiserver/api_server_impl.h index f2b9741cb07..ee41e34935b 100644 --- a/src/apiserver/api_server_impl.h +++ b/src/apiserver/api_server_impl.h @@ -32,6 +32,10 @@ #include "sdk/sql_cluster_router.h" #include "sdk/sql_request_row.h" +#include "absl/status/status.h" +#include "bvar/bvar.h" +#include "bvar/multi_dimension.h" // latency recorder + namespace openmldb { namespace apiserver { @@ -45,7 +49,7 @@ using rapidjson::Value; // Both input and output are json data. We use rapidjson to handle it. class APIServerImpl : public APIServer { public: - APIServerImpl() = default; + explicit APIServerImpl(const std::string& endpoint); ~APIServerImpl() override; bool Init(const sdk::ClusterOptions& options); bool Init(::openmldb::sdk::DBSDK* cluster); @@ -82,13 +86,19 @@ class APIServerImpl : public APIServer { // may get segmentation fault when throw boost::bad_lexical_cast, so we use std::from_chars template static bool FromString(const std::string& s, T& value) { // NOLINT - auto res = std::from_chars(s.data(), s.data() + s.size(), value); - return res.ec == std::errc() && (res.ptr - s.data() == s.size()); + if (auto res = std::from_chars(s.data(), s.data() + s.size(), value); res.ec == std::errc()) { + auto len = res.ptr - s.data(); + return len >= 0 ? (uint64_t)len == s.size() : false; + } else { + return false; + } } private: - std::shared_ptr sql_router_; + bvar::MultiDimension md_recorder_; InterfaceProvider provider_; + + std::shared_ptr sql_router_; // cluster_sdk_ is not owned by this class. ::openmldb::sdk::DBSDK* cluster_sdk_ = nullptr; }; diff --git a/src/apiserver/api_server_test.cc b/src/apiserver/api_server_test.cc index f327ff89527..6abe8ddd051 100644 --- a/src/apiserver/api_server_test.cc +++ b/src/apiserver/api_server_test.cc @@ -50,7 +50,7 @@ class APIServerTestEnv : public testing::Environment { // Owned by queue_svc cluster_sdk = new ::openmldb::sdk::ClusterSDK(cluster_options); ASSERT_TRUE(cluster_sdk->Init()) << "Fail to connect to db"; - queue_svc = std::make_shared(); + queue_svc = std::make_shared("127.0.0.1:8010"); // fake endpoint for metrics ASSERT_TRUE(queue_svc->Init(cluster_sdk)); sdk::SQLRouterOptions sql_opt; @@ -1236,7 +1236,8 @@ TEST_F(APIServerTest, jsonInput) { ASSERT_FALSE(show_cntl.Failed()) << show_cntl.ErrorText(); LOG(INFO) << "get sp resp: " << show_cntl.response_attachment(); - // call deployment in json style input(won't check if it's a sp or deployment) + // call sp in deployment api with json style input(won't check if it's a sp or deployment), so it'll have field + // `common_cols_data` { brpc::Controller cntl; cntl.http_request().set_method(brpc::HTTP_METHOD_POST); diff --git a/src/apiserver/interface_provider.cc b/src/apiserver/interface_provider.cc index c4be99c4726..4a482b3aab0 100644 --- a/src/apiserver/interface_provider.cc +++ b/src/apiserver/interface_provider.cc @@ -25,6 +25,8 @@ #include #include "boost/algorithm/string/split.hpp" +#include "butil/time.h" +#include "bvar/bvar.h" #include "glog/logging.h" namespace openmldb { @@ -159,6 +161,8 @@ void InterfaceProvider::registerRequest(brpc::HttpMethod type, std::string const bool InterfaceProvider::handle(const std::string& path, const brpc::HttpMethod& method, const butil::IOBuf& req_body, JsonWriter& writer) { + butil::Timer tm; + tm.start(); auto err = GeneralResp(); Url url; @@ -190,6 +194,9 @@ bool InterfaceProvider::handle(const std::string& path, const brpc::HttpMethod& } auto params = extractParameters(url, request->url); + tm.stop(); + route_recorder_ << tm.u_elapsed(); + request->callback(params, req_body, writer); return true; } diff --git a/src/apiserver/interface_provider.h b/src/apiserver/interface_provider.h index e2ffe4661a4..8589b9229c5 100644 --- a/src/apiserver/interface_provider.h +++ b/src/apiserver/interface_provider.h @@ -32,6 +32,7 @@ #include "apiserver/json_helper.h" #include "brpc/http_method.h" // HttpMethod #include "butil/iobuf.h" // IOBuf +#include "bvar/bvar.h" // latency recorder #include "proto/api_server.pb.h" namespace openmldb { @@ -111,7 +112,7 @@ class ReducedUrlParser { class InterfaceProvider { public: - InterfaceProvider() = default; + explicit InterfaceProvider(const std::string& metric_prefix) : route_recorder_(metric_prefix, "http_route") {} InterfaceProvider& operator=(InterfaceProvider const&) = delete; InterfaceProvider(InterfaceProvider const&) = delete; @@ -160,6 +161,9 @@ class InterfaceProvider { void registerRequest(brpc::HttpMethod, const std::string& path, std::function&& callback); private: + // we only record route latency, method latency is recorded in callback(you may need record in parts), defined in + // api server impl + bvar::LatencyRecorder route_recorder_; std::unordered_map> requests_; }; diff --git a/src/client/tablet_client.cc b/src/client/tablet_client.cc index 3a51a7e8f94..2049279d17f 100644 --- a/src/client/tablet_client.cc +++ b/src/client/tablet_client.cc @@ -1171,7 +1171,7 @@ bool TabletClient::SubBatchRequestQuery(const ::openmldb::api::SQLBatchRequestQu if (callback == nullptr) { return false; } - return client_.SendRequest(&::openmldb::api::TabletServer_Stub::SQLBatchRequestQuery, + return client_.SendRequest(&::openmldb::api::TabletServer_Stub::SubBatchRequestQuery, callback->GetController().get(), &request, callback->GetResponse().get(), callback); } diff --git a/src/cmd/openmldb.cc b/src/cmd/openmldb.cc index 8c07cb252da..328f4ff342b 100644 --- a/src/cmd/openmldb.cc +++ b/src/cmd/openmldb.cc @@ -3853,7 +3853,7 @@ void StartAPIServer() { GetRealEndpoint(&real_endpoint); } - auto api_service = std::make_unique<::openmldb::apiserver::APIServerImpl>(); + auto api_service = std::make_unique<::openmldb::apiserver::APIServerImpl>(real_endpoint); if (!FLAGS_nameserver.empty()) { std::vector vec; boost::split(vec, FLAGS_nameserver, boost::is_any_of(":")); diff --git a/src/cmd/sql_cmd_test.cc b/src/cmd/sql_cmd_test.cc index a1637e369d9..459aef2971e 100644 --- a/src/cmd/sql_cmd_test.cc +++ b/src/cmd/sql_cmd_test.cc @@ -3777,7 +3777,7 @@ TEST_F(SqlCmdTest, SelectWithAddNewIndex) { // -------------------------------------------------------------------------------------- // basic functional UTs to test if it is correct for deploy query response time collection -// see NameServerImpl::SyncDeployStats & TabletImpl::TryCollectDeployStats +// see TabletImpl::CollectDeployStats // -------------------------------------------------------------------------------------- // a proxy class to create and cleanup deployment stats more gracefully @@ -3850,12 +3850,6 @@ struct DeploymentEnv { ASSERT_TRUE(status.IsOK()) << status.msg << "\n" << status.trace; } - void EnableDeployStats() { - ProcessSQLs(sr_, { - "set global deploy_stats = 'on'", - }); - } - sdk::SQLClusterRouter* sr_; absl::BitGen gen_; // variables generate randomly in SetUp @@ -3882,111 +3876,6 @@ struct DeploymentEnv { } }; -static const char QueryDeployResponseTime[] = "select * from INFORMATION_SCHEMA.DEPLOY_RESPONSE_TIME"; - -TEST_P(DBSDKTest, DeployStatsNotEnableByDefault) { - auto cli = GetParam(); - cs = cli->cs; - sr = cli->sr; - - DeploymentEnv env(sr); - env.SetUp(); - env.CallDeployProcedureBatch(); - env.CallDeployProcedure(); - - absl::SleepFor(absl::Seconds(3)); - - hybridse::sdk::Status status; - auto rs = sr->ExecuteSQLParameterized("", QueryDeployResponseTime, {}, &status); - ASSERT_TRUE(status.IsOK()); - ASSERT_EQ(0, rs->Size()); - - env.EnableDeployStats(); - - absl::SleepFor(absl::Seconds(3)); - - // HandleSQL exists only for purpose of printing - HandleSQL(QueryDeployResponseTime); - rs = sr->ExecuteSQLParameterized("", QueryDeployResponseTime, {}, &status); - ASSERT_TRUE(status.IsOK()); - ASSERT_EQ(0, rs->Size()); -} - -TEST_P(DBSDKTest, DeployStatsEnabledAfterSetGlobal) { - auto cli = GetParam(); - cs = cli->cs; - sr = cli->sr; - - // FIXME(#1547): test skiped due to Deploy Response Time can't enable in standalone mode - if (cs->IsClusterMode()) { - DeploymentEnv env(sr); - env.SetUp(); - env.EnableDeployStats(); - // sleep a while for global variable notification - absl::SleepFor(absl::Seconds(2)); - - hybridse::sdk::Status status; - auto rs = sr->ExecuteSQLParameterized("", QueryDeployResponseTime, {}, &status); - ASSERT_TRUE(status.IsOK()); - // as deploy stats in tablet is lazy managed, the deploy stats will stay empty util the first procedure call - // happens - ASSERT_EQ(0, rs->Size()); - - // warm up deploy stats - env.CallDeployProcedureBatch(); - env.CallDeployProcedure(); - - absl::SleepFor(absl::Seconds(3)); - - HandleSQL(QueryDeployResponseTime); - rs = sr->ExecuteSQLParameterized("", QueryDeployResponseTime, {}, &status); - ASSERT_TRUE(status.IsOK()); - ASSERT_EQ(TIME_DISTRIBUTION_BUCKET_COUNT, rs->Size()); - - int cnt = 0; - while (rs->Next()) { - EXPECT_EQ(absl::StrCat(env.db_, ".", env.dp_name_), rs->GetAsStringUnsafe(0)); - cnt += rs->GetInt32Unsafe(2); - } - EXPECT_EQ(2, cnt); - } -} - -TEST_P(DBSDKTest, DeployStatsOnlyCollectDeployProcedure) { - auto cli = GetParam(); - cs = cli->cs; - sr = cli->sr; - if (cs->IsClusterMode()) { - DeploymentEnv env(sr); - env.SetUp(); - - env.EnableDeployStats(); - absl::SleepFor(absl::Seconds(2)); - - for (int i = 0; i < 5; ++i) { - env.CallProcedure(); - } - - for (int i = 0; i < 10; ++i) { - env.CallDeployProcedureBatch(); - env.CallDeployProcedure(); - } - absl::SleepFor(absl::Seconds(3)); - - HandleSQL(QueryDeployResponseTime); - hybridse::sdk::Status status; - auto rs = sr->ExecuteSQLParameterized("", QueryDeployResponseTime, {}, &status); - ASSERT_TRUE(status.IsOK()); - ASSERT_EQ(TIME_DISTRIBUTION_BUCKET_COUNT, rs->Size()); - int cnt = 0; - while (rs->Next()) { - EXPECT_EQ(absl::StrCat(env.db_, ".", env.dp_name_), rs->GetAsStringUnsafe(0)); - cnt += rs->GetInt32Unsafe(2); - } - EXPECT_EQ(10 + 10, cnt); - } -} - class StripSpaceTest : public ::testing::TestWithParam> {}; std::vector> strip_cases = { diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index 35d11f4d6ec..06912ad9736 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -74,7 +74,6 @@ DECLARE_int32(make_snapshot_time); DECLARE_int32(make_snapshot_check_interval); DECLARE_bool(use_name); DECLARE_bool(enable_distsql); -DECLARE_uint32(sync_deploy_stats_timeout); namespace openmldb { namespace nameserver { @@ -1473,8 +1472,6 @@ bool NameServerImpl::Init(const std::string& zk_cluster, const std::string& zk_p task_vec_.resize(FLAGS_name_server_task_max_concurrency + FLAGS_name_server_task_concurrency_for_replica_cluster); task_thread_pool_.DelayTask(FLAGS_make_snapshot_check_interval, boost::bind(&NameServerImpl::SchedMakeSnapshot, this)); - task_thread_pool_.DelayTask(FLAGS_sync_deploy_stats_timeout, - boost::bind(&NameServerImpl::ScheduleSyncDeployStats, this)); return true; } @@ -9394,21 +9391,6 @@ void NameServerImpl::DropProcedureOnTablet(const std::string& db_name, const std } } - bool is_deployment_procedure = false; - { - std::lock_guard lock(mu_); - auto it = db_sp_info_map_.find(db_name); - if (it != db_sp_info_map_.end()) { - auto iit = it->second.find(sp_name); - is_deployment_procedure = iit != it->second.end() && iit->second->type() == type::kReqDeployment; - } - } - std::shared_ptr info; - auto success = GetTableInfo(DEPLOY_RESPONSE_TIME, INFORMATION_SCHEMA_DB, &info); - // NOTE: deploy stats records will delete even when global setting deploy_stats is turned off while there are - // records for previous deploy query (during deploy_stats = 'on') - bool drop_deploy_stats = is_deployment_procedure && success && info != nullptr; - for (auto tb_client : tb_client_vec) { if (!tb_client->DropProcedure(db_name, sp_name)) { PDLOG(WARNING, "drop procedure on tablet failed. db_name[%s], sp_name[%s], endpoint[%s]", db_name.c_str(), @@ -9419,44 +9401,6 @@ void NameServerImpl::DropProcedureOnTablet(const std::string& db_name, const std PDLOG(INFO, "drop procedure on tablet success. db_name[%s], sp_name[%s], endpoint[%s]", db_name.c_str(), sp_name.c_str(), tb_client->GetEndpoint().c_str()); } - - if (drop_deploy_stats && info->table_partition_size() > 0) { - std::string endpoint; - for (auto& meta : info->table_partition()[0].partition_meta()) { - if (meta.is_leader()) { - endpoint = meta.endpoint(); - } - } - auto tablet_info = GetTablet(endpoint); - if (tablet_info == nullptr) { - PDLOG(ERROR, "no leader exists for system table %s", DEPLOY_RESPONSE_TIME); - return; - } - - auto tb_client = tablet_info->client_; - - auto deploy_name = absl::StrCat(db_name, ".", sp_name); - uint32_t pid = static_cast(::openmldb::base::hash64(deploy_name) % info->table_partition_size()); - auto time = absl::Microseconds(1); - int cnt = 0; - std::string msg; - while (cnt++ < TIME_DISTRIBUTION_BUCKET_COUNT - 1) { - auto key = absl::StrCat(deploy_name, "|", statistics::GetDurationAsStr(time, statistics::TimeUnit::SECOND)); - if (!tb_client->Delete(info->tid(), pid, key, "", msg)) { - // NOTE: some warning appears but is expected, just ingore: - // 1. when you create a deploy query but not call it any time before delete it - // 2. deploy_stats is always turned off - PDLOG(WARNING, "failed to delete entry in %s in tablet %s where key = %s : %s", DEPLOY_RESPONSE_TIME, - tb_client->GetEndpoint(), key, msg); - } - time *= 10; - } - auto key = absl::StrCat(deploy_name, "|", MAX_STRING); - if (!tb_client->Delete(info->tid(), pid, key, "", msg)) { - PDLOG(WARNING, "failed to delete entry in %s in tablet %s where key = %s : %s", DEPLOY_RESPONSE_TIME, - tb_client->GetEndpoint(), key, msg); - } - } } void NameServerImpl::DropProcedure(RpcController* controller, const api::DropProcedureRequest* request, @@ -9974,143 +9918,6 @@ base::Status NameServerImpl::InitGlobalVarTable() { return {}; } -static const std::string& QueryDeployStats() { - static const std::string query_deploy_stats = - absl::StrCat("select * from ", nameserver::INFORMATION_SCHEMA_DB, ".", nameserver::DEPLOY_RESPONSE_TIME); - return query_deploy_stats; -} - -static const std::string& QueryDeployStatsIsOn() { - static const std::string query_deploy_stats_is_on = - absl::StrCat("select * from ", nameserver::INFORMATION_SCHEMA_DB, ".", nameserver::GLOBAL_VARIABLES, - " where Variable_name = 'deploy_stats'"); - return query_deploy_stats_is_on; -} - -void NameServerImpl::SyncDeployStats() { - // Step one: check condition for deploy stats. only all of those meet: - // 1. current ns is master - // 2. deploy_stats global variable is set to 'on' or 'true' - if (startup_mode_ == type::kStandalone && running_.load(std::memory_order_acquire)) { - DLOG(INFO) << "sync deploy stats skipped for non-leader ns on cluster"; - FreeSdkConnection(); - return; - } - - if (!GetSdkConnection()) { - LOG(ERROR) << "failed to get sdk connection"; - return; - } - auto sr = std::atomic_load_explicit(&sr_, std::memory_order_acquire); - if (sr == nullptr) { - LOG(ERROR) << "sdk connection is null"; - return; - } - ::hybridse::sdk::Status s; - auto rs = sr->ExecuteSQLParameterized("", QueryDeployStatsIsOn(), {}, &s); - if (!s.IsOK()) { - LOG(ERROR) << "[ERROR] query global variable deploy_stats: " << s.msg; - return; - } - - bool sync_stats = false; - while (rs->Next()) { - auto val = rs->GetStringUnsafe(1); - sync_stats = (val == "on" || val == "true"); - } - - if (!sync_stats) { - DLOG(INFO) << "sync deploy stats skipped when deploy_stats is off"; - return; - } - - // Step two: Fetch And Flush deploy stats from each tablet - std::unordered_map> active_tablets; - { - std::lock_guard lock(mu_); - for (auto& kv : tablets_) { - if (kv.second->Health()) { - active_tablets.emplace(kv.first, kv.second->client_); - } - } - } - statistics::DeployResponseTimeRowReducer reducer; - for (auto& client : active_tablets) { - ::openmldb::api::DeployStatsResponse res; - if (!client.second->GetAndFlushDeployStats(&res)) { - LOG(ERROR) << "GetAndFlushDeployStats from " << client.first << " failed "; - continue; - } - - for (auto& r : res.rows()) { - reducer.Reduce(r.deploy_name(), - statistics::ParseDurationFromStr(r.time(), statistics::TimeUnit::MICRO_SECOND), r.count(), - statistics::ParseDurationFromStr(r.total(), statistics::TimeUnit::MICRO_SECOND)); - } - } - - // Step three: Query old deploy response time from table - rs = sr->ExecuteSQLParameterized("", QueryDeployStats(), {}, &s); - if (!s.IsOK()) { - LOG(ERROR) << "[ERROR] querying DEPLOY_RESPONSE_TIME" << s.msg; - return; - } - - // old reducer help find those rows already in table and but there is - // no new incremental stats reduced from all tablets - statistics::DeployResponseTimeRowReducer old_reducer; - while (rs->Next()) { - auto name = rs->GetAsStringUnsafe(0); - auto time = rs->GetAsStringUnsafe(1); - uint64_t cnt = 0; - if (rs->GetSchema()->GetColumnType(2) == hybridse::sdk::DataType::kTypeInt64) { - cnt = static_cast(rs->GetInt64Unsafe(2)); - } else { - cnt = static_cast(rs->GetInt32Unsafe(2)); - } - auto total = rs->GetAsStringUnsafe(3); - - auto ts = statistics::ParseDurationFromStr(time, statistics::TimeUnit::SECOND); - auto tt = statistics::ParseDurationFromStr(total, statistics::TimeUnit::SECOND); - - reducer.Reduce(name, ts, cnt, tt); - old_reducer.Reduce(name, ts, cnt, tt); - } - - // Step four: update DEPLOY_RESPONSE_TIME table by the new rows - // only for rows that meet any of conditiions below: - // 1. the incremental count and total is bigger than 0 - // 2. original table do not have row for that (deploy_name + time) key yet - std::string insert_deploy_stat = absl::StrCat("insert into ", nameserver::INFORMATION_SCHEMA_DB, ".", - nameserver::DEPLOY_RESPONSE_TIME, " values "); - for (auto& row : reducer.Rows()) { - auto old_it = old_reducer.Find(row->deploy_name_, row->time_); - if (old_it != nullptr && row->count_ == old_it->count_) { - // don't update table only if there is no incremental data, and there is record already in table - continue; - } - - std::string time = row->GetTimeAsStr(statistics::TimeUnit::SECOND); - auto insert_sql = absl::StrCat(insert_deploy_stat, " ( '", row->deploy_name_, "', '", - time, "', ", row->count_, - ",'", row->GetTotalAsStr(statistics::TimeUnit::SECOND), "' )"); - - hybridse::sdk::Status st; - DLOG(INFO) << "sync deploy stats: executing sql: " << insert_sql; - sr->ExecuteInsert("", insert_sql, &st); - if (!st.IsOK()) { - LOG(ERROR) << "[ERROR] insert deploy stats failed: " << st.msg; - } - } - // TODO(ace): add logs for summary how many rows affected and time cost -} - -void NameServerImpl::ScheduleSyncDeployStats() { - SyncDeployStats(); - task_thread_pool_.DelayTask(FLAGS_sync_deploy_stats_timeout, - boost::bind(&NameServerImpl::ScheduleSyncDeployStats, this)); -} - /// \beirf create a SQLClusterRouter instance for use like monitoring statistics collecting /// the actual instance is stored in `sr_` member /// diff --git a/src/nameserver/name_server_impl.h b/src/nameserver/name_server_impl.h index 593c0bb536f..c8f5c56b04d 100644 --- a/src/nameserver/name_server_impl.h +++ b/src/nameserver/name_server_impl.h @@ -673,11 +673,6 @@ class NameServerImpl : public NameServer { uint64_t GetTerm() const; - // write deploy statistics into table - void SyncDeployStats(); - - void ScheduleSyncDeployStats(); - bool GetSdkConnection(); void FreeSdkConnection(); diff --git a/src/nameserver/name_server_test.cc b/src/nameserver/name_server_test.cc index eee5d79f351..e01f2f5c792 100644 --- a/src/nameserver/name_server_test.cc +++ b/src/nameserver/name_server_test.cc @@ -46,7 +46,6 @@ DECLARE_int32(zk_keep_alive_check_interval); DECLARE_int32(make_snapshot_threshold_offset); DECLARE_uint32(name_server_task_max_concurrency); DECLARE_uint32(system_table_replica_num); -DECLARE_uint32(sync_deploy_stats_timeout); DECLARE_bool(auto_failover); using brpc::Server; @@ -1297,6 +1296,5 @@ int main(int argc, char** argv) { FLAGS_ssd_root_path = tmp_path.GetTempPath("ssd"); FLAGS_hdd_root_path = tmp_path.GetTempPath("hdd"); FLAGS_system_table_replica_num = 0; - FLAGS_sync_deploy_stats_timeout = 1000000; return RUN_ALL_TESTS(); } diff --git a/src/statistics/query_response_time/CMakeLists.txt b/src/statistics/query_response_time/CMakeLists.txt index e309934f318..b03aeef65c5 100644 --- a/src/statistics/query_response_time/CMakeLists.txt +++ b/src/statistics/query_response_time/CMakeLists.txt @@ -12,14 +12,14 @@ # See the License for the specific language governing permissions and # limitations under the License. -set(LINK_LIBS absl::time absl::random_random absl::strings absl::status absl::statusor absl::synchronization ${GTEST_LIBRARIES} ${GLOG_LIBRARY} ${GFLAGS_LIBRARY}) +set(LINK_LIBS absl::time absl::random_random absl::strings absl::status absl::statusor absl::synchronization ${BRPC_LIBS} ${GTEST_LIBRARIES} ${GLOG_LIBRARY} ${GFLAGS_LIBRARY}) link_libraries(${LINK_LIBS}) if(CMAKE_CXX_COMPILER_ID MATCHES "(AppleClang)|(Clang)") add_definitions(-Wthread-safety) endif() -add_library(query_response_time STATIC ${CMAKE_CURRENT_SOURCE_DIR}/deploy_query_response_time.cc ${CMAKE_CURRENT_SOURCE_DIR}/query_response_time.cc) +add_library(query_response_time STATIC ${CMAKE_CURRENT_SOURCE_DIR}/deployment_metric_collector.cc) function(add_test_file TARGET_NAME SOURCE_NAME) add_executable(${TARGET_NAME} ${SOURCE_NAME}) @@ -40,8 +40,7 @@ function(add_test_file TARGET_NAME SOURCE_NAME) endfunction(add_test_file) if(TESTING_ENABLE) - add_test_file(query_response_time_test ${CMAKE_CURRENT_SOURCE_DIR}/query_response_time_test.cc) - add_test_file(deploy_query_response_time_test ${CMAKE_CURRENT_SOURCE_DIR}/deploy_query_response_time_test.cc) + add_test_file(deployment_metric_collector_test ${CMAKE_CURRENT_SOURCE_DIR}/deployment_metric_collector_test.cc) if(CMAKE_PROJECT_NAME STREQUAL "openmldb") set(test_list ${test_list} PARENT_SCOPE) diff --git a/src/statistics/query_response_time/deployment_metric_collector.cc b/src/statistics/query_response_time/deployment_metric_collector.cc new file mode 100644 index 00000000000..252821254b8 --- /dev/null +++ b/src/statistics/query_response_time/deployment_metric_collector.cc @@ -0,0 +1,43 @@ +/* + * Copyright 2022 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "statistics/query_response_time/deployment_metric_collector.h" + +namespace openmldb::statistics { + +absl::Status DeploymentMetricCollector::Collect(const std::string& db, const std::string& deploy_name, + absl::Duration time) { + absl::ReaderMutexLock lock(&mutex_); + auto it = md_recorder_->get_stats({db, deploy_name}); + if (it == nullptr) { + LOG(WARNING) << "reach limit size, collect failed"; + return absl::OutOfRangeError("multi-dimensional recorder reaches limit size, please delete old deploy"); + } + *it << absl::ToInt64Microseconds(time); + return absl::OkStatus(); +} + +absl::Status DeploymentMetricCollector::DeleteDeploy(const std::string& db, const std::string& deploy_name) { + absl::ReaderMutexLock lock(&mutex_); + md_recorder_->delete_stats({db, deploy_name}); + return absl::OkStatus(); +} + +void DeploymentMetricCollector::Reset() { + absl::WriterMutexLock lock(&mutex_); + md_recorder_ = make_shared(prefix_); +} +} // namespace openmldb::statistics diff --git a/src/statistics/query_response_time/deployment_metric_collector.h b/src/statistics/query_response_time/deployment_metric_collector.h new file mode 100644 index 00000000000..9296b5a5fde --- /dev/null +++ b/src/statistics/query_response_time/deployment_metric_collector.h @@ -0,0 +1,81 @@ +/* + * Copyright 2022 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef SRC_STATISTICS_QUERY_RESPONSE_TIME_DEPLOYMENT_METRIC_COLLECTOR_H_ +#define SRC_STATISTICS_QUERY_RESPONSE_TIME_DEPLOYMENT_METRIC_COLLECTOR_H_ + +#include +#include +#include +#include + +#include "absl/base/thread_annotations.h" +#include "absl/status/status.h" +#include "absl/synchronization/mutex.h" +#include "absl/time/time.h" +#include "bvar/bvar.h" +#include "bvar/multi_dimension.h" +#include "gflags/gflags.h" + +namespace openmldb::statistics { +class DeploymentMetricCollector { + public: + typedef typename bvar::MultiDimension MDRecorder; + explicit DeploymentMetricCollector(const std::string& prefix) : prefix_(prefix), md_recorder_(make_shared(prefix)) { + // already expose_as when MultiDimension ctor + } + // collector is not copyable + DeploymentMetricCollector(const DeploymentMetricCollector& c) = delete; + + ~DeploymentMetricCollector() {} + // . + absl::Status Collect(const std::string& db, const std::string& deploy_name, absl::Duration time) + LOCKS_EXCLUDED(mutex_); + absl::Status DeleteDeploy(const std::string& db, const std::string& deploy_name) LOCKS_EXCLUDED(mutex_); + void Reset() LOCKS_EXCLUDED(mutex_); + + // usually used for debug + std::string Desc(const std::list& key) LOCKS_EXCLUDED(mutex_) { + absl::ReaderMutexLock lock(&mutex_); + std::stringstream ss; + if (key.empty()) { + md_recorder_->describe(ss); + } else if (md_recorder_->has_stats(key)) { + auto rd = md_recorder_->get_stats(key); + ss << "count:" << rd->count() << ", qps:" << rd->qps() << ", latency:[" << rd->latency() << "," + << rd->latency_percentile(0.8) << "," << rd->latency_percentile(0.9) << "," + << rd->latency_percentile(0.99) << "," << rd->latency_percentile(0.999) << "," + << rd->latency_percentile(0.9999) << "]"; + } else { + ss << "no stats for key"; + } + + return ss.str(); + } + + static std::shared_ptr make_shared(const std::string& prefix) { + MDRecorder::key_type labels = {"db", "deployment"}; + return std::make_shared(prefix, "deployment", labels); + } + + private: + std::string prefix_; // for reset + // not copyable and can't clear, so use ptr + // MultiDimension can't define recorder window size by yourself, bvar_dump_interval is the only way + std::shared_ptr md_recorder_ GUARDED_BY(mutex_); + mutable absl::Mutex mutex_; // protects collectors_ +}; +} // namespace openmldb::statistics +#endif // SRC_STATISTICS_QUERY_RESPONSE_TIME_DEPLOYMENT_METRIC_COLLECTOR_H_ diff --git a/src/statistics/query_response_time/deployment_metric_collector_test.cc b/src/statistics/query_response_time/deployment_metric_collector_test.cc new file mode 100644 index 00000000000..06ae0e0ddd4 --- /dev/null +++ b/src/statistics/query_response_time/deployment_metric_collector_test.cc @@ -0,0 +1,134 @@ +/* + * Copyright 2022 4Paradigm + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "statistics/query_response_time/deployment_metric_collector.h" + +#include +#include +#include +#include +#include + +#include "absl/random/random.h" +#include "absl/strings/str_cat.h" +#include "absl/time/clock.h" +#include "absl/time/time.h" +#include "gflags/gflags.h" +#include "glog/logging.h" +#include "gtest/gtest.h" + +namespace bvar { +DECLARE_int32(bvar_dump_interval); +} + +namespace openmldb { +namespace statistics { + +class CollectorTest : public ::testing::Test { + public: + CollectorTest() = default; + ~CollectorTest() override = default; +}; + +using std::ifstream; +using std::string; +using std::ios_base; + +void mem_usage() { + double vm_usage = 0.0; + double resident_set = 0.0; + ifstream stat_stream("/proc/self/stat", ios_base::in); // get info from proc directory + // create some variables to get info + string pid, comm, state, ppid, pgrp, session, tty_nr; + string tpgid, flags, minflt, cminflt, majflt, cmajflt; + string utime, stime, cutime, cstime, priority, nice; + string O, itrealvalue, starttime; + uint64_t vsize; + int64_t rss; + stat_stream >> pid >> comm >> state >> ppid >> pgrp >> session >> tty_nr >> tpgid >> flags >> minflt >> cminflt >> + majflt >> cmajflt >> utime >> stime >> cutime >> cstime >> priority >> nice >> O >> itrealvalue >> starttime >> + vsize >> rss; // don't care about the rest + stat_stream.close(); + int64_t page_size_kb = sysconf(_SC_PAGE_SIZE) / 1024; // for x86-64 is configured to use 2MB pages + vm_usage = vsize / 1024.0; + resident_set = rss * page_size_kb; + LOG(INFO) << "VM: " << vm_usage << "KB; RSS: " << resident_set << "KB"; +} + +TEST_F(CollectorTest, MemoryTest) { + // let's see how much memory will be used + auto test = [](int db_size, int dpl_size, int request_cnt, bool will_fail = false) { + DeploymentMetricCollector collector("test"); + for (int db_idx = 0; db_idx < db_size; db_idx++) { + auto db = "db" + std::to_string(db_idx); + for (int i = 0; i < dpl_size; i++) { + for (int t = 0; t < request_cnt; t++) { + auto st = collector.Collect(db, "d" + std::to_string(i), absl::Microseconds(10)); + } + } + } + if (will_fail) { + return; + } + auto desc = collector.Desc({}); + LOG(INFO) << desc; + ASSERT_TRUE(desc == + absl::StrCat(R"({"name" : "test_deployment", "labels" : ["db", "deployment"], "stats_count" : )", + db_size * dpl_size, "}")) + << desc; + // peek one + auto dstat = collector.Desc({"db0", "d0"}); + LOG(INFO) << dstat; + // can't check qps, and latency is calc from window, it'll == 0 if get too fase, so we just check count + ASSERT_TRUE(dstat.find("count:" + std::to_string(request_cnt)) != std::string::npos) << dstat; + mem_usage(); + }; + // empty mem VM: 104948KB; RSS: 5752KB + mem_usage(); + // recorder mem for one label is stable, VM: ~105576KB; RSS: ~6512KB, even collect 10M requests + // but VM&RSS containes other memory, should use diff to get recorder mem + test(1, 1, 1000); // + ~0.5M + test(1, 1, 10000); + test(1, 1, 100000); + // disable for speed + // test(1, 1, 1000000); + // test(1, 1, 10000000); + + // VM: 105568KB; RSS: 6628KB + // VM: 105964KB; RSS: 6984KB + // VM: 110056KB; RSS: 11208KB + // VM: 341356KB; RSS: 126256KB + // VM: 344076KB; RSS: 129936KB + // test(1, 10, 1000); + // test(1, 100, 1000); + // test(1, 1000, 1000); + // test(1, 10000, 1000); + // test(10, 1000, 1000); + + // MAX_MULTI_DIMENSION_STATS_COUNT = 20000, so total alive deployment count <= 20001 + // If we need more, need a repetitive task to reset (K*bvar_bump_interval?) or add LabelLatencyRecorder + test(1, 20002, 1, true); +} + +} // namespace statistics +} // namespace openmldb + +int main(int argc, char* argv[]) { + ::testing::InitGoogleTest(&argc, argv); + ::google::ParseCommandLineFlags(&argc, &argv, true); + bvar::FLAGS_bvar_dump_interval = 75; + return RUN_ALL_TESTS(); +} diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index ee0150d4548..4b30036465c 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -189,7 +189,10 @@ bool TabletImpl::Init(const std::string& zk_cluster, const std::string& zk_path, mode_recycle_root_paths_[::openmldb::common::kSSD]); ::openmldb::base::SplitString(FLAGS_recycle_bin_hdd_root_path, ",", mode_recycle_root_paths_[::openmldb::common::kHDD]); - deploy_collector_ = std::make_unique<::openmldb::statistics::DeployQueryTimeCollector>(); + // if want /brpc_metrics, prefix should be g_server_info_prefix+(when no server_info_name), means + // rpc_server_ if standalone, diy + deploy_collector_ = std::make_unique<::openmldb::statistics::DeploymentMetricCollector>( + "rpc_server_" + endpoint.substr(endpoint.find(":") + 1)); if (!zk_cluster.empty()) { zk_client_ = new ZkClient(zk_cluster, real_endpoint, FLAGS_zk_session_timeout, endpoint, zk_path, @@ -1574,15 +1577,15 @@ void TabletImpl::Query(RpcController* ctrl, const openmldb::api::QueryRequest* r brpc::ClosureGuard done_guard(done); brpc::Controller* cntl = static_cast(ctrl); butil::IOBuf& buf = cntl->response_attachment(); - ProcessQuery(ctrl, request, response, &buf); + ProcessQuery(true, ctrl, request, response, &buf); } -void TabletImpl::ProcessQuery(RpcController* ctrl, const openmldb::api::QueryRequest* request, +void TabletImpl::ProcessQuery(bool is_sub, RpcController* ctrl, const openmldb::api::QueryRequest* request, ::openmldb::api::QueryResponse* response, butil::IOBuf* buf) { auto start = absl::Now(); - absl::Cleanup deploy_collect_task = [this, request, start]() { + absl::Cleanup deploy_collect_task = [this, is_sub, request, start]() { if (this->IsCollectDeployStatsEnabled()) { - if (request->is_procedure() && request->has_db() && request->has_sp_name()) { + if (!is_sub && request->is_procedure() && request->has_db() && request->has_sp_name()) { this->TryCollectDeployStats(request->db(), request->sp_name(), start); } } @@ -1704,7 +1707,8 @@ void TabletImpl::SubQuery(RpcController* ctrl, const openmldb::api::QueryRequest brpc::ClosureGuard done_guard(done); brpc::Controller* cntl = static_cast(ctrl); butil::IOBuf& buf = cntl->response_attachment(); - ProcessQuery(ctrl, request, response, &buf); + // subquery don't need to collect deploy stats + ProcessQuery(true, ctrl, request, response, &buf); } void TabletImpl::SQLBatchRequestQuery(RpcController* ctrl, const openmldb::api::SQLBatchRequestQueryRequest* request, @@ -1713,15 +1717,15 @@ void TabletImpl::SQLBatchRequestQuery(RpcController* ctrl, const openmldb::api:: brpc::ClosureGuard done_guard(done); brpc::Controller* cntl = static_cast(ctrl); butil::IOBuf& buf = cntl->response_attachment(); - return ProcessBatchRequestQuery(ctrl, request, response, buf); + return ProcessBatchRequestQuery(false, ctrl, request, response, buf); } -void TabletImpl::ProcessBatchRequestQuery(RpcController* ctrl, +void TabletImpl::ProcessBatchRequestQuery(bool is_sub, RpcController* ctrl, const openmldb::api::SQLBatchRequestQueryRequest* request, openmldb::api::SQLBatchRequestQueryResponse* response, butil::IOBuf& buf) { absl::Time start = absl::Now(); - absl::Cleanup deploy_collect_task = [this, request, start]() { + absl::Cleanup deploy_collect_task = [this, is_sub, request, start]() { if (this->IsCollectDeployStatsEnabled()) { - if (request->is_procedure() && request->has_db() && request->has_sp_name()) { + if (!is_sub && request->is_procedure() && request->has_db() && request->has_sp_name()) { this->TryCollectDeployStats(request->db(), request->sp_name(), start); } } @@ -1893,7 +1897,7 @@ void TabletImpl::SubBatchRequestQuery(RpcController* ctrl, const openmldb::api:: brpc::ClosureGuard done_guard(done); brpc::Controller* cntl = static_cast(ctrl); butil::IOBuf& buf = cntl->response_attachment(); - return ProcessBatchRequestQuery(ctrl, request, response, buf); + return ProcessBatchRequestQuery(true, ctrl, request, response, buf); } void TabletImpl::ChangeRole(RpcController* controller, const ::openmldb::api::ChangeRoleRequest* request, @@ -4319,6 +4323,12 @@ void TabletImpl::UpdateGlobalVarTable() { it->Next(); } std::atomic_store_explicit(&global_variables_, new_global_var, std::memory_order_relaxed); + + // no DEPLOY_STATS when init, so we can get the first DEPLOY_STATS value here, and all changes will be handled in + // and we assume that global vars change is low frequency, so we reset here instead of in the repeated task + if (!IsCollectDeployStatsEnabled()) { + deploy_collector_->Reset(); + } return; } @@ -5344,7 +5354,7 @@ void TabletImpl::DropProcedure(RpcController* controller, const ::openmldb::api: if (is_deployment_procedure) { auto collector_key = absl::StrCat(db_name, ".", sp_name); - auto s = deploy_collector_->DeleteDeploy(collector_key); + auto s = deploy_collector_->DeleteDeploy(db_name, sp_name); if (!s.ok()) { LOG(ERROR) << "[ERROR] delete deploy collector: " << s; } else { @@ -5497,31 +5507,12 @@ bool TabletImpl::IsCollectDeployStatsEnabled() const { } // try collect the cost time for a deployment procedure into collector -// if the procedure found in collector, it is colelcted directly -// if not, the function will try find the procedure info from procedure cache, and if turns out is a deployment -// procedure, retry collecting by firstly adding the missing deployment procedure into collector +// if failed, log inside, no extra handle void TabletImpl::TryCollectDeployStats(const std::string& db, const std::string& name, absl::Time start_time) { absl::Time now = absl::Now(); absl::Duration time = now - start_time; - const std::string deploy_name = absl::StrCat(db, ".", name); - auto s = deploy_collector_->Collect(deploy_name, time); - if (absl::IsNotFound(s)) { - // deploy collector is regarded as non-update-to-date cache for sp_info (sp_cache_ should be up-to-date) - // so when Not Found error happens, retry once again by AddDeploy first, with the help of sp_cache_ - auto sp_info = sp_cache_->FindSpProcedureInfo(db, name); - if (sp_info.ok() && sp_info.value()->GetType() == hybridse::sdk::kReqDeployment) { - s = deploy_collector_->AddDeploy(deploy_name); - if (!s.ok()) { - LOG(ERROR) << "[ERROR] add deploy collector: " << s; - return; - } - s = deploy_collector_->Collect(deploy_name, time); - } - } - if (!s.ok()) { - LOG(ERROR) << "[ERROR] collect deploy stat: " << s; - } - DLOG(INFO) << "collected " << deploy_name << " for " << time; + auto st = deploy_collector_->Collect(db, name, time); + DLOG(INFO) << "collect " << db << "." << name << " latency " << time; } void TabletImpl::BulkLoad(RpcController* controller, const ::openmldb::api::BulkLoadRequest* request, @@ -5783,14 +5774,7 @@ void TabletImpl::GetAndFlushDeployStats(::google::protobuf::RpcController* contr ::google::protobuf::Closure* done) { brpc::ClosureGuard done_guard(done); - auto rs = deploy_collector_->Flush(); - for (auto& r : rs) { - auto new_row = response->add_rows(); - new_row->set_deploy_name(r.deploy_name_); - new_row->set_time(r.GetTimeAsStr(statistics::TimeUnit::MICRO_SECOND)); - new_row->set_count(r.count_); - new_row->set_total(r.GetTotalAsStr(statistics::TimeUnit::MICRO_SECOND)); - } + // TODO(hw): delete rpc? response->set_code(ReturnCode::kOk); } diff --git a/src/tablet/tablet_impl.h b/src/tablet/tablet_impl.h index 83135ad72e6..c24a253c9e9 100644 --- a/src/tablet/tablet_impl.h +++ b/src/tablet/tablet_impl.h @@ -33,9 +33,9 @@ #include "nameserver/system_table.h" #include "proto/tablet.pb.h" #include "replica/log_replicator.h" -#include "storage/aggregator.h" #include "sdk/sql_cluster_router.h" -#include "statistics/query_response_time/deploy_query_response_time.h" +#include "statistics/query_response_time/deployment_metric_collector.h" +#include "storage/aggregator.h" #include "storage/mem_table.h" #include "storage/mem_table_snapshot.h" #include "tablet/bulk_load_mgr.h" @@ -219,10 +219,10 @@ class TabletImpl : public ::openmldb::api::TabletServer { openmldb::api::QueryResponse* response, Closure* done); void CreateFunction(RpcController* controller, const openmldb::api::CreateFunctionRequest* request, - openmldb::api::CreateFunctionResponse* response, Closure* done); + openmldb::api::CreateFunctionResponse* response, Closure* done); void DropFunction(RpcController* controller, const openmldb::api::DropFunctionRequest* request, - openmldb::api::DropFunctionResponse* response, Closure* done); + openmldb::api::DropFunctionResponse* response, Closure* done); void SubQuery(RpcController* controller, const openmldb::api::QueryRequest* request, openmldb::api::QueryResponse* response, Closure* done); @@ -279,9 +279,7 @@ class TabletImpl : public ::openmldb::api::TabletServer { public: explicit UpdateAggrClosure(const std::function& callback) : callback_(callback) {} - void Run() override { - callback_(); - } + void Run() override { callback_(); } private: std::function callback_; @@ -318,25 +316,22 @@ class TabletImpl : public ::openmldb::api::TabletServer { void DumpIndexDataInternal(std::shared_ptr<::openmldb::storage::Table> table, std::shared_ptr<::openmldb::storage::MemTableSnapshot> memtable_snapshot, - uint32_t partition_num, - const std::vector<::openmldb::common::ColumnKey>& column_keys, + uint32_t partition_num, const std::vector<::openmldb::common::ColumnKey>& column_keys, uint64_t offset, std::shared_ptr<::openmldb::api::TaskInfo> task); void SendIndexDataInternal(std::shared_ptr<::openmldb::storage::Table> table, const std::map& pid_endpoint_map, std::shared_ptr<::openmldb::api::TaskInfo> task); - void LoadIndexDataInternal(uint32_t tid, uint32_t pid, uint32_t cur_pid, - uint32_t partition_num, uint64_t last_time, - std::shared_ptr<::openmldb::api::TaskInfo> task); + void LoadIndexDataInternal(uint32_t tid, uint32_t pid, uint32_t cur_pid, uint32_t partition_num, uint64_t last_time, + std::shared_ptr<::openmldb::api::TaskInfo> task); base::Status TruncateTableInternal(uint32_t tid, uint32_t pid); void ExtractIndexDataInternal(std::shared_ptr<::openmldb::storage::Table> table, - std::shared_ptr<::openmldb::storage::MemTableSnapshot> memtable_snapshot, - const std::vector<::openmldb::common::ColumnKey>& column_key, - uint32_t partition_num, uint64_t offset, bool contain_dump, - std::shared_ptr<::openmldb::api::TaskInfo> task); + std::shared_ptr<::openmldb::storage::MemTableSnapshot> memtable_snapshot, + const std::vector<::openmldb::common::ColumnKey>& column_key, uint32_t partition_num, + uint64_t offset, bool contain_dump, std::shared_ptr<::openmldb::api::TaskInfo> task); void SchedMakeSnapshot(); @@ -360,7 +355,7 @@ class TabletImpl : public ::openmldb::api::TabletServer { int LoadTableInternal(uint32_t tid, uint32_t pid, std::shared_ptr<::openmldb::api::TaskInfo> task_ptr); int LoadDiskTableInternal(uint32_t tid, uint32_t pid, const ::openmldb::api::TableMeta& table_meta, - std::shared_ptr<::openmldb::api::TaskInfo> task_ptr); + std::shared_ptr<::openmldb::api::TaskInfo> task_ptr); int WriteTableMeta(const std::string& path, const ::openmldb::api::TableMeta* table_meta); int UpdateTableMeta(const std::string& path, ::openmldb::api::TableMeta* table_meta, bool for_add_column); @@ -373,8 +368,7 @@ class TabletImpl : public ::openmldb::api::TabletServer { void SetTaskStatus(std::shared_ptr<::openmldb::api::TaskInfo>& task_ptr, // NOLINT ::openmldb::api::TaskStatus status); - int GetTaskStatus(const std::shared_ptr<::openmldb::api::TaskInfo>& task_ptr, - ::openmldb::api::TaskStatus* status); + int GetTaskStatus(const std::shared_ptr<::openmldb::api::TaskInfo>& task_ptr, ::openmldb::api::TaskStatus* status); bool IsExistTaskUnLock(const ::openmldb::api::TaskInfo& task); @@ -400,8 +394,7 @@ class TabletImpl : public ::openmldb::api::TabletServer { bool GetTableRootSize(uint32_t tid, uint32_t pid, const ::openmldb::common::StorageMode& mode, uint64_t& size); // NOLINT - int32_t GetSnapshotOffset(uint32_t tid, uint32_t pid, - ::openmldb::common::StorageMode storageMode, + int32_t GetSnapshotOffset(uint32_t tid, uint32_t pid, ::openmldb::common::StorageMode storageMode, std::string& msg, // NOLINT uint64_t& term, uint64_t& offset); // NOLINT @@ -411,9 +404,10 @@ class TabletImpl : public ::openmldb::api::TabletServer { bool GetRealEp(uint64_t tid, uint64_t pid, std::map* real_ep_map); - void ProcessQuery(RpcController* controller, const openmldb::api::QueryRequest* request, + void ProcessQuery(bool is_sub, RpcController* controller, const openmldb::api::QueryRequest* request, ::openmldb::api::QueryResponse* response, butil::IOBuf* buf); - void ProcessBatchRequestQuery(RpcController* controller, const openmldb::api::SQLBatchRequestQueryRequest* request, + void ProcessBatchRequestQuery(bool is_sub, RpcController* controller, + const openmldb::api::SQLBatchRequestQueryRequest* request, openmldb::api::SQLBatchRequestQueryResponse* response, butil::IOBuf& buf); // NOLINT @@ -421,11 +415,9 @@ class TabletImpl : public ::openmldb::api::TabletServer { const ::openmldb::storage::Dimensions& dimensions, uint64_t log_offset); bool CreateAggregatorInternal(const ::openmldb::api::CreateAggregatorRequest* request, - std::string& msg); //NOLINT + std::string& msg); // NOLINT - inline bool IsClusterMode() const { - return startup_mode_ == ::openmldb::type::StartupMode::kCluster; - } + inline bool IsClusterMode() const { return startup_mode_ == ::openmldb::type::StartupMode::kCluster; } std::string GetDBPath(const std::string& root_path, uint32_t tid, uint32_t pid); @@ -460,10 +452,8 @@ class TabletImpl : public ::openmldb::api::TabletServer { std::set sync_snapshot_set_; std::map> file_receiver_map_; BulkLoadMgr bulk_load_mgr_; - std::map<::openmldb::common::StorageMode, std::vector> - mode_root_paths_; - std::map<::openmldb::common::StorageMode, std::vector> - mode_recycle_root_paths_; + std::map<::openmldb::common::StorageMode, std::vector> mode_root_paths_; + std::map<::openmldb::common::StorageMode, std::vector> mode_recycle_root_paths_; std::atomic follower_; std::shared_ptr> real_ep_map_; // thread safe @@ -482,7 +472,7 @@ class TabletImpl : public ::openmldb::api::TabletServer { std::shared_ptr> global_variables_; - std::unique_ptr deploy_collector_; + std::unique_ptr deploy_collector_; std::atomic memory_used_ = 0; }; From 84a1ffc4963c96f6c1d22d20c9aa5733d6a4be3e Mon Sep 17 00:00:00 2001 From: HuangWei Date: Thu, 16 Nov 2023 11:56:14 +0800 Subject: [PATCH 104/111] feat: catch error msgs in ns/tablet client (#3587) --- docs/zh/maintain/openmldb_ops.md | 3 +- src/base/status.h | 3 + src/client/ns_client.cc | 97 +++++++++++++--------------- src/client/ns_client.h | 28 ++++---- src/client/tablet_client.cc | 96 +++++++++++++-------------- src/client/tablet_client.h | 90 +++++++++++++------------- src/cmd/openmldb.cc | 83 ++++++++++++------------ src/datacollector/data_collector.cc | 4 +- src/nameserver/name_server_impl.cc | 4 +- src/replica/snapshot_replica_test.cc | 3 +- src/sdk/sql_cluster_router.cc | 20 ++++-- src/tablet/tablet_impl.cc | 5 +- tools/openmldb_ops.py | 5 +- tools/tool.py | 17 ++--- 14 files changed, 224 insertions(+), 234 deletions(-) diff --git a/docs/zh/maintain/openmldb_ops.md b/docs/zh/maintain/openmldb_ops.md index 591ae355a75..d96b23131b3 100644 --- a/docs/zh/maintain/openmldb_ops.md +++ b/docs/zh/maintain/openmldb_ops.md @@ -35,8 +35,9 @@ python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=0.0 python tools/openmldb_ops.py --openmldb_bin_path=./bin/openmldb --zk_cluster=0.0.0.0:2181 --zk_root_path=/openmldb --cmd=recoverdata ``` -注:理论上openmldb_ops不要求版本匹配,高版本openmldb_ops可以操作低版本的openmldb集群。 +运行结果可以只关注是否存在ERROR级日志,如果存在,请保留完整的日志记录,便于技术人员查找问题。 ### 系统要求 - 要求python2.7及以上版本 +- 理论上openmldb_ops不要求与OpenMLDB集群的版本匹配,高版本openmldb_ops可以操作低版本的OpenMLDB集群。 - `showopstatus`和`showtablestatus`需要`prettytable`依赖 diff --git a/src/base/status.h b/src/base/status.h index a6854e287b6..5995138edd6 100644 --- a/src/base/status.h +++ b/src/base/status.h @@ -19,6 +19,8 @@ #include +#include "absl/strings/str_cat.h" + #include "base/slice.h" #include "version.h" // NOLINT @@ -189,6 +191,7 @@ struct Status { inline bool OK() const { return code == ReturnCode::kOk; } inline const std::string& GetMsg() const { return msg; } inline int GetCode() const { return code; } + inline std::string ToString() const { return absl::StrCat("ReturnCode[", code, "]", msg); } int code; std::string msg; }; diff --git a/src/client/ns_client.cc b/src/client/ns_client.cc index 2b3a4a4ad45..ebf2bca2416 100644 --- a/src/client/ns_client.cc +++ b/src/client/ns_client.cc @@ -221,17 +221,16 @@ base::Status NsClient::ShowOPStatus(const std::string& name, uint32_t pid, return {base::ReturnCode::kError, response->msg()}; } -bool NsClient::CancelOP(uint64_t op_id, std::string& msg) { +base::Status NsClient::CancelOP(uint64_t op_id) { ::openmldb::nameserver::CancelOPRequest request; ::openmldb::nameserver::GeneralResponse response; request.set_op_id(op_id); - bool ok = client_.SendRequest(&::openmldb::nameserver::NameServer_Stub::CancelOP, &request, &response, - FLAGS_request_timeout_ms, 1); - msg = response.msg(); - if (ok && response.code() == 0) { - return true; + auto st = client_.SendRequestSt(&::openmldb::nameserver::NameServer_Stub::CancelOP, &request, &response, + FLAGS_request_timeout_ms, 1); + if (st.OK()) { + return {response.code(), response.msg()}; } - return false; + return st; } bool NsClient::AddTableField(const std::string& table_name, const ::openmldb::common::ColumnDesc& column_desc, @@ -342,10 +341,10 @@ bool NsClient::SetSdkEndpoint(const std::string& server_name, const std::string& return false; } -bool NsClient::AddReplica(const std::string& name, const std::set& pid_set, const std::string& endpoint, - std::string& msg) { +base::Status NsClient::AddReplica(const std::string& name, const std::set& pid_set, + const std::string& endpoint) { if (pid_set.empty()) { - return false; + return {base::ReturnCode::kError, "arg pid set is empty"}; } ::openmldb::nameserver::AddReplicaNSRequest request; ::openmldb::nameserver::GeneralResponse response; @@ -358,13 +357,12 @@ bool NsClient::AddReplica(const std::string& name, const std::set& pid request.add_pid_group(pid); } } - bool ok = client_.SendRequest(&::openmldb::nameserver::NameServer_Stub::AddReplicaNS, &request, &response, - FLAGS_request_timeout_ms, 1); - msg = response.msg(); - if (ok && response.code() == 0) { - return true; + auto st = client_.SendRequestSt(&::openmldb::nameserver::NameServer_Stub::AddReplicaNS, &request, &response, + FLAGS_request_timeout_ms, 1); + if (st.OK()) { + return {response.code(), response.msg()}; } - return false; + return st; } bool NsClient::AddReplicaNS(const std::string& name, const std::vector& endpoint_vec, uint32_t pid, @@ -393,10 +391,10 @@ bool NsClient::AddReplicaNS(const std::string& name, const std::vector& pid_set, const std::string& endpoint, - std::string& msg) { +base::Status NsClient::DelReplica(const std::string& name, const std::set& pid_set, + const std::string& endpoint) { if (pid_set.empty()) { - return false; + return {base::ReturnCode::kError, "arg pid set is empty"}; } ::openmldb::nameserver::DelReplicaNSRequest request; ::openmldb::nameserver::GeneralResponse response; @@ -409,13 +407,12 @@ bool NsClient::DelReplica(const std::string& name, const std::set& pid request.add_pid_group(pid); } } - bool ok = client_.SendRequest(&::openmldb::nameserver::NameServer_Stub::DelReplicaNS, &request, &response, - FLAGS_request_timeout_ms, 1); - msg = response.msg(); - if (ok && response.code() == 0) { - return true; + auto st = client_.SendRequestSt(&::openmldb::nameserver::NameServer_Stub::DelReplicaNS, &request, &response, + FLAGS_request_timeout_ms, 1); + if (st.OK()) { + return {response.code(), response.msg()}; } - return false; + return st; } bool NsClient::ConfSet(const std::string& key, const std::string& value, std::string& msg) { @@ -458,7 +455,7 @@ bool NsClient::ConfGet(const std::string& key, std::map& pid_set, - const std::string& des_endpoint, std::string& msg) { +base::Status NsClient::Migrate(const std::string& src_endpoint, const std::string& name, + const std::set& pid_set, const std::string& des_endpoint) { ::openmldb::nameserver::MigrateRequest request; ::openmldb::nameserver::GeneralResponse response; request.set_src_endpoint(src_endpoint); @@ -503,13 +499,12 @@ bool NsClient::Migrate(const std::string& src_endpoint, const std::string& name, for (auto pid : pid_set) { request.add_pid(pid); } - bool ok = client_.SendRequest(&::openmldb::nameserver::NameServer_Stub::Migrate, &request, &response, + auto st = client_.SendRequestSt(&::openmldb::nameserver::NameServer_Stub::Migrate, &request, &response, FLAGS_request_timeout_ms, 1); - msg = response.msg(); - if (ok && response.code() == 0) { - return true; + if (st.OK()) { + return {response.code(), response.msg()}; } - return false; + return st; } bool NsClient::RecoverEndpoint(const std::string& endpoint, bool need_restore, uint32_t concurrency, std::string& msg) { @@ -529,20 +524,19 @@ bool NsClient::RecoverEndpoint(const std::string& endpoint, bool need_restore, u return false; } -bool NsClient::RecoverTable(const std::string& name, uint32_t pid, const std::string& endpoint, std::string& msg) { +base::Status NsClient::RecoverTable(const std::string& name, uint32_t pid, const std::string& endpoint) { ::openmldb::nameserver::RecoverTableRequest request; ::openmldb::nameserver::GeneralResponse response; request.set_name(name); request.set_pid(pid); request.set_endpoint(endpoint); request.set_db(GetDb()); - bool ok = client_.SendRequest(&::openmldb::nameserver::NameServer_Stub::RecoverTable, &request, &response, + auto st = client_.SendRequestSt(&::openmldb::nameserver::NameServer_Stub::RecoverTable, &request, &response, FLAGS_request_timeout_ms, 1); - msg = response.msg(); - if (ok && response.code() == 0) { - return true; + if (st.OK()) { + return {response.code(), response.msg()}; } - return false; + return st; } bool NsClient::ConnectZK(std::string& msg) { @@ -603,8 +597,8 @@ bool NsClient::GetTablePartition(const std::string& name, uint32_t pid, return false; } -bool NsClient::UpdateTableAliveStatus(const std::string& endpoint, std::string& name, uint32_t pid, bool is_alive, - std::string& msg) { +base::Status NsClient::UpdateTableAliveStatus(const std::string& endpoint, const std::string& name, uint32_t pid, + bool is_alive) { ::openmldb::nameserver::UpdateTableAliveRequest request; ::openmldb::nameserver::GeneralResponse response; request.set_endpoint(endpoint); @@ -614,13 +608,12 @@ bool NsClient::UpdateTableAliveStatus(const std::string& endpoint, std::string& if (pid < UINT32_MAX) { request.set_pid(pid); } - bool ok = client_.SendRequest(&::openmldb::nameserver::NameServer_Stub::UpdateTableAliveStatus, &request, &response, - FLAGS_request_timeout_ms, 1); - msg = response.msg(); - if (ok && response.code() == 0) { - return true; + auto st = client_.SendRequestSt(&::openmldb::nameserver::NameServer_Stub::UpdateTableAliveStatus, &request, + &response, FLAGS_request_timeout_ms, 1); + if (st.OK()) { + return {response.code(), response.msg()}; } - return false; + return st; } bool NsClient::UpdateTTL(const std::string& name, const ::openmldb::type::TTLType& type, uint64_t abs_ttl, diff --git a/src/client/ns_client.h b/src/client/ns_client.h index 467219f4ec8..eb26aca55d6 100644 --- a/src/client/ns_client.h +++ b/src/client/ns_client.h @@ -94,12 +94,11 @@ class NsClient : public Client { bool MakeSnapshot(const std::string& name, const std::string& db, uint32_t pid, uint64_t end_offset, std::string& msg); // NOLINT - base::Status ShowOPStatus(const std::string& name, uint32_t pid, - nameserver::ShowOPStatusResponse* response); + base::Status ShowOPStatus(const std::string& name, uint32_t pid, nameserver::ShowOPStatusResponse* response); base::Status ShowOPStatus(uint64_t op_id, ::openmldb::nameserver::ShowOPStatusResponse* response); - bool CancelOP(uint64_t op_id, std::string& msg); // NOLINT + base::Status CancelOP(uint64_t op_id); bool AddTableField(const std::string& table_name, const ::openmldb::common::ColumnDesc& column_desc, std::string& msg); // NOLINT @@ -146,14 +145,12 @@ class NsClient : public Client { const ::openmldb::nameserver::ZoneInfo& zone_info, std::string& msg); // NOLINT - bool AddReplica(const std::string& name, const std::set& pid_set, const std::string& endpoint, - std::string& msg); // NOLINT + base::Status AddReplica(const std::string& name, const std::set& pid_set, const std::string& endpoint); bool AddReplicaNS(const std::string& name, const std::vector& endpoint_vec, uint32_t pid, const ::openmldb::nameserver::ZoneInfo& zone_info, const ::openmldb::api::TaskInfo& task_info); - bool DelReplica(const std::string& name, const std::set& pid_set, const std::string& endpoint, - std::string& msg); // NOLINT + base::Status DelReplica(const std::string& name, const std::set& pid_set, const std::string& endpoint); bool ConfSet(const std::string& key, const std::string& value, std::string& msg); // NOLINT @@ -161,20 +158,19 @@ class NsClient : public Client { bool ConfGet(const std::string& key, std::map& conf_map, // NOLINT std::string& msg); // NOLINT - bool ChangeLeader(const std::string& name, uint32_t pid, - std::string& candidate_leader, // NOLINT - std::string& msg); // NOLINT + base::Status ChangeLeader(const std::string& name, uint32_t pid, + std::string& candidate_leader); // NOLINT bool OfflineEndpoint(const std::string& endpoint, uint32_t concurrency, std::string& msg); // NOLINT - bool Migrate(const std::string& src_endpoint, const std::string& name, const std::set& pid_set, - const std::string& des_endpoint, std::string& msg); // NOLINT + base::Status Migrate(const std::string& src_endpoint, const std::string& name, const std::set& pid_set, + const std::string& des_endpoint); bool RecoverEndpoint(const std::string& endpoint, bool need_restore, uint32_t concurrency, std::string& msg); // NOLINT - bool RecoverTable(const std::string& name, uint32_t pid, const std::string& endpoint, std::string& msg); // NOLINT + base::Status RecoverTable(const std::string& name, uint32_t pid, const std::string& endpoint); bool ConnectZK(std::string& msg); // NOLINT @@ -187,10 +183,8 @@ class NsClient : public Client { ::openmldb::nameserver::TablePartition& table_partition, // NOLINT std::string& msg); // NOLINT - bool UpdateTableAliveStatus(const std::string& endpoint, - std::string& name, // NOLINT - uint32_t pid, bool is_alive, - std::string& msg); // NOLINT + base::Status UpdateTableAliveStatus(const std::string& endpoint, const std::string& name, uint32_t pid, + bool is_alive); bool UpdateTTL(const std::string& name, const ::openmldb::type::TTLType& type, uint64_t abs_ttl, uint64_t lat_ttl, const std::string& ts_name, std::string& msg); // NOLINT diff --git a/src/client/tablet_client.cc b/src/client/tablet_client.cc index 2049279d17f..878d2a5f3cc 100644 --- a/src/client/tablet_client.cc +++ b/src/client/tablet_client.cc @@ -335,12 +335,13 @@ bool TabletClient::SendSnapshot(uint32_t tid, uint32_t remote_tid, uint32_t pid, return false; } -bool TabletClient::LoadTable(const std::string& name, uint32_t id, uint32_t pid, uint64_t ttl, uint32_t seg_cnt) { +base::Status TabletClient::LoadTable(const std::string& name, uint32_t id, uint32_t pid, uint64_t ttl, + uint32_t seg_cnt) { return LoadTable(name, id, pid, ttl, false, seg_cnt); } -bool TabletClient::LoadTable(const std::string& name, uint32_t tid, uint32_t pid, uint64_t ttl, bool leader, - uint32_t seg_cnt, std::shared_ptr task_info) { +base::Status TabletClient::LoadTable(const std::string& name, uint32_t tid, uint32_t pid, uint64_t ttl, bool leader, + uint32_t seg_cnt, std::shared_ptr task_info) { ::openmldb::api::TableMeta table_meta; table_meta.set_name(name); table_meta.set_tid(tid); @@ -351,10 +352,11 @@ bool TabletClient::LoadTable(const std::string& name, uint32_t tid, uint32_t pid } else { table_meta.set_mode(::openmldb::api::TableMode::kTableFollower); } - return LoadTable(table_meta, task_info); + return LoadTableInternal(table_meta, task_info); } -bool TabletClient::LoadTable(const ::openmldb::api::TableMeta& table_meta, std::shared_ptr task_info) { +base::Status TabletClient::LoadTableInternal(const ::openmldb::api::TableMeta& table_meta, + std::shared_ptr task_info) { ::openmldb::api::LoadTableRequest request; ::openmldb::api::TableMeta* cur_table_meta = request.mutable_table_meta(); cur_table_meta->CopyFrom(table_meta); @@ -362,28 +364,21 @@ bool TabletClient::LoadTable(const ::openmldb::api::TableMeta& table_meta, std:: request.mutable_task_info()->CopyFrom(*task_info); } ::openmldb::api::GeneralResponse response; - bool ok = client_.SendRequest(&::openmldb::api::TabletServer_Stub::LoadTable, &request, &response, - FLAGS_request_timeout_ms, 1); - if (ok && response.code() == 0) { - return true; + auto st = client_.SendRequestSt(&::openmldb::api::TabletServer_Stub::LoadTable, &request, &response, + FLAGS_request_timeout_ms, 1); + if (st.OK()) { + return {response.code(), response.msg()}; } - return false; + return st; } -bool TabletClient::LoadTable(uint32_t tid, uint32_t pid, std::string* msg) { - ::openmldb::api::LoadTableRequest request; - ::openmldb::api::TableMeta* table_meta = request.mutable_table_meta(); - table_meta->set_tid(tid); - table_meta->set_pid(pid); - table_meta->set_mode(::openmldb::api::TableMode::kTableLeader); - ::openmldb::api::GeneralResponse response; - bool ok = client_.SendRequest(&::openmldb::api::TabletServer_Stub::LoadTable, &request, &response, - FLAGS_request_timeout_ms, 1); - msg->swap(*response.mutable_msg()); - if (ok && response.code() == 0) { - return true; +bool TabletClient::LoadTable(const ::openmldb::api::TableMeta& table_meta, std::shared_ptr task_info) { + auto st = LoadTableInternal(table_meta, task_info); + // can't return msg, log here + if (!st.OK()) { + LOG(WARNING) << st.ToString(); } - return false; + return st.OK(); } bool TabletClient::ChangeRole(uint32_t tid, uint32_t pid, bool leader, uint64_t term) { @@ -513,37 +508,36 @@ bool TabletClient::GetManifest(uint32_t tid, uint32_t pid, ::openmldb::common::S return true; } -bool TabletClient::GetTableStatus(::openmldb::api::GetTableStatusResponse& response) { +base::Status TabletClient::GetTableStatus(::openmldb::api::GetTableStatusResponse& response) { ::openmldb::api::GetTableStatusRequest request; - bool ret = client_.SendRequest(&::openmldb::api::TabletServer_Stub::GetTableStatus, &request, &response, + auto st = client_.SendRequestSt(&::openmldb::api::TabletServer_Stub::GetTableStatus, &request, &response, FLAGS_request_timeout_ms, 1); - if (ret) { - return true; + if (st.OK()) { + return {response.code(), response.msg()}; } - return false; + return st; } -bool TabletClient::GetTableStatus(uint32_t tid, uint32_t pid, ::openmldb::api::TableStatus& table_status) { +base::Status TabletClient::GetTableStatus(uint32_t tid, uint32_t pid, ::openmldb::api::TableStatus& table_status) { return GetTableStatus(tid, pid, false, table_status); } -bool TabletClient::GetTableStatus(uint32_t tid, uint32_t pid, bool need_schema, +base::Status TabletClient::GetTableStatus(uint32_t tid, uint32_t pid, bool need_schema, ::openmldb::api::TableStatus& table_status) { ::openmldb::api::GetTableStatusRequest request; request.set_tid(tid); request.set_pid(pid); request.set_need_schema(need_schema); ::openmldb::api::GetTableStatusResponse response; - bool ret = client_.SendRequest(&::openmldb::api::TabletServer_Stub::GetTableStatus, &request, &response, + auto st = client_.SendRequestSt(&::openmldb::api::TabletServer_Stub::GetTableStatus, &request, &response, FLAGS_request_timeout_ms, 1); - if (!ret) { - return false; + if (!st.OK()) { + return st; } - if (response.all_table_status_size() > 0) { + if (response.code() == 0 && response.all_table_status_size() > 0) { table_status = response.all_table_status(0); - return true; } - return false; + return {response.code(), response.msg()}; } std::shared_ptr TabletClient::Scan(uint32_t tid, uint32_t pid, @@ -701,25 +695,27 @@ bool TabletClient::SetExpire(uint32_t tid, uint32_t pid, bool is_expire) { return true; } -bool TabletClient::GetTableFollower(uint32_t tid, uint32_t pid, uint64_t& offset, - std::map& info_map, std::string& msg) { +base::Status TabletClient::GetTableFollower(uint32_t tid, uint32_t pid, uint64_t& offset, + std::map& info_map) { ::openmldb::api::GetTableFollowerRequest request; ::openmldb::api::GetTableFollowerResponse response; request.set_tid(tid); request.set_pid(pid); - bool ok = client_.SendRequest(&::openmldb::api::TabletServer_Stub::GetTableFollower, &request, &response, - FLAGS_request_timeout_ms, 1); - if (response.has_msg()) { - msg = response.msg(); - } - if (!ok || response.code() != 0) { - return false; - } - for (int idx = 0; idx < response.follower_info_size(); idx++) { - info_map.insert(std::make_pair(response.follower_info(idx).endpoint(), response.follower_info(idx).offset())); + auto st = client_.SendRequestSt(&::openmldb::api::TabletServer_Stub::GetTableFollower, &request, &response, + FLAGS_request_timeout_ms, 1); + if (st.OK()) { + if (response.code() == 0) { + offset = response.offset(); + for (int idx = 0; idx < response.follower_info_size(); idx++) { + info_map.insert( + std::make_pair(response.follower_info(idx).endpoint(), response.follower_info(idx).offset())); + } + return {}; + } else { + return {response.code(), response.msg()}; + } } - offset = response.offset(); - return true; + return st; } bool TabletClient::Get(uint32_t tid, uint32_t pid, const std::string& pk, uint64_t time, std::string& value, diff --git a/src/client/tablet_client.h b/src/client/tablet_client.h index ec3ab346cc7..9fee8e08392 100644 --- a/src/client/tablet_client.h +++ b/src/client/tablet_client.h @@ -39,7 +39,6 @@ namespace sdk { class SQLRequestRowBatch; } // namespace sdk - namespace client { using ::openmldb::api::TaskInfo; const uint32_t INVALID_REMOTE_TID = UINT32_MAX; @@ -83,7 +82,8 @@ class TabletClient : public Client { bool Get(uint32_t tid, uint32_t pid, const std::string& pk, uint64_t time, std::string& value, // NOLINT uint64_t& ts, // NOLINT - std::string& msg); ; // NOLINT + std::string& msg); + ; // NOLINT bool Get(uint32_t tid, uint32_t pid, const std::string& pk, uint64_t time, const std::string& idx_name, std::string& value, // NOLINT @@ -94,21 +94,20 @@ class TabletClient : public Client { std::string& msg); // NOLINT base::Status Delete(uint32_t tid, uint32_t pid, const std::map& index_val, - const std::string& ts_name, const std::optional start_ts, const std::optional& end_ts); + const std::string& ts_name, const std::optional start_ts, + const std::optional& end_ts); bool Count(uint32_t tid, uint32_t pid, const std::string& pk, const std::string& idx_name, bool filter_expired_data, uint64_t& value, std::string& msg); // NOLINT + std::shared_ptr Scan(uint32_t tid, uint32_t pid, const std::string& pk, + const std::string& idx_name, uint64_t stime, uint64_t etime, + uint32_t limit, uint32_t skip_record_num, + std::string& msg); // NOLINT - std::shared_ptr Scan(uint32_t tid, uint32_t pid, - const std::string& pk, const std::string& idx_name, - uint64_t stime, uint64_t etime, - uint32_t limit, uint32_t skip_record_num, std::string& msg); // NOLINT - - std::shared_ptr Scan(uint32_t tid, uint32_t pid, - const std::string& pk, const std::string& idx_name, - uint64_t stime, uint64_t etime, - uint32_t limit, std::string& msg); // NOLINT + std::shared_ptr Scan(uint32_t tid, uint32_t pid, const std::string& pk, + const std::string& idx_name, uint64_t stime, uint64_t etime, + uint32_t limit, std::string& msg); // NOLINT bool Scan(const ::openmldb::api::ScanRequest& request, brpc::Controller* cntl, ::openmldb::api::ScanResponse* response); @@ -140,15 +139,14 @@ class TabletClient : public Client { bool RecoverSnapshot(uint32_t tid, uint32_t pid, std::shared_ptr task_info = std::shared_ptr()); - bool LoadTable(const std::string& name, uint32_t id, uint32_t pid, uint64_t ttl, uint32_t seg_cnt); + base::Status LoadTable(const std::string& name, uint32_t id, uint32_t pid, uint64_t ttl, uint32_t seg_cnt); - bool LoadTable(const std::string& name, uint32_t id, uint32_t pid, uint64_t ttl, bool leader, uint32_t seg_cnt, - std::shared_ptr task_info = std::shared_ptr()); + base::Status LoadTable(const std::string& name, uint32_t id, uint32_t pid, uint64_t ttl, bool leader, + uint32_t seg_cnt, std::shared_ptr task_info = std::shared_ptr()); + // for ns WrapTaskFun, must return bool bool LoadTable(const ::openmldb::api::TableMeta& table_meta, std::shared_ptr task_info); - bool LoadTable(uint32_t tid, uint32_t pid, std::string* msg); - bool ChangeRole(uint32_t tid, uint32_t pid, bool leader, uint64_t term); bool ChangeRole(uint32_t tid, uint32_t pid, bool leader, const std::vector& endpoints, uint64_t term, @@ -165,26 +163,25 @@ class TabletClient : public Client { bool GetTermPair(uint32_t tid, uint32_t pid, ::openmldb::common::StorageMode storage_mode, // NOLINT - uint64_t& term, // NOLINT - uint64_t& offset, bool& has_table, // NOLINT - bool& is_leader); // NOLINT + uint64_t& term, // NOLINT + uint64_t& offset, bool& has_table, // NOLINT + bool& is_leader); // NOLINT bool GetManifest(uint32_t tid, uint32_t pid, ::openmldb::common::StorageMode storage_mode, ::openmldb::api::Manifest& manifest); // NOLINT - bool GetTableStatus(::openmldb::api::GetTableStatusResponse& response); // NOLINT - bool GetTableStatus(uint32_t tid, uint32_t pid, - ::openmldb::api::TableStatus& table_status); // NOLINT - bool GetTableStatus(uint32_t tid, uint32_t pid, bool need_schema, - ::openmldb::api::TableStatus& table_status); // NOLINT + base::Status GetTableStatus(::openmldb::api::GetTableStatusResponse& response); // NOLINT + base::Status GetTableStatus(uint32_t tid, uint32_t pid, + ::openmldb::api::TableStatus& table_status); // NOLINT + base::Status GetTableStatus(uint32_t tid, uint32_t pid, bool need_schema, + ::openmldb::api::TableStatus& table_status); // NOLINT bool FollowOfNoOne(uint32_t tid, uint32_t pid, uint64_t term, uint64_t& offset); // NOLINT - bool GetTableFollower(uint32_t tid, uint32_t pid, - uint64_t& offset, // NOLINT - std::map& info_map, // NOLINT - std::string& msg); // NOLINT + base::Status GetTableFollower(uint32_t tid, uint32_t pid, + uint64_t& offset, // NOLINT + std::map& info_map); // NOLINT bool GetAllSnapshotOffset(std::map>& tid_pid_offset); // NOLINT @@ -193,8 +190,9 @@ class TabletClient : public Client { bool DisConnectZK(); std::shared_ptr Traverse(uint32_t tid, uint32_t pid, - const std::string& idx_name, const std::string& pk, uint64_t ts, - uint32_t limit, bool skip_current_pk, uint32_t ts_pos, uint32_t& count); // NOLINT + const std::string& idx_name, const std::string& pk, + uint64_t ts, uint32_t limit, bool skip_current_pk, + uint32_t ts_pos, uint32_t& count); // NOLINT bool SetMode(bool mode); @@ -203,9 +201,8 @@ class TabletClient : public Client { bool AddIndex(uint32_t tid, uint32_t pid, const ::openmldb::common::ColumnKey& column_key, std::shared_ptr task_info); - bool AddMultiIndex(uint32_t tid, uint32_t pid, - const std::vector<::openmldb::common::ColumnKey>& column_keys, - std::shared_ptr task_info); + bool AddMultiIndex(uint32_t tid, uint32_t pid, const std::vector<::openmldb::common::ColumnKey>& column_keys, + std::shared_ptr task_info); bool GetCatalog(uint64_t* version); @@ -215,8 +212,7 @@ class TabletClient : public Client { bool LoadIndexData(uint32_t tid, uint32_t pid, uint32_t partition_num, std::shared_ptr task_info); bool ExtractIndexData(uint32_t tid, uint32_t pid, uint32_t partition_num, - const std::vector<::openmldb::common::ColumnKey>& column_key, - uint64_t offset, bool dump_data, + const std::vector<::openmldb::common::ColumnKey>& column_key, uint64_t offset, bool dump_data, std::shared_ptr task_info); bool CancelOP(const uint64_t op_id); @@ -235,9 +231,9 @@ class TabletClient : public Client { uint64_t timeout_ms); base::Status CallSQLBatchRequestProcedure(const std::string& db, const std::string& sp_name, - const base::Slice& meta, const base::Slice& data, - bool is_debug, uint64_t timeout_ms, - brpc::Controller* cntl, openmldb::api::SQLBatchRequestQueryResponse* response); + const base::Slice& meta, const base::Slice& data, bool is_debug, + uint64_t timeout_ms, brpc::Controller* cntl, + openmldb::api::SQLBatchRequestQueryResponse* response); bool DropProcedure(const std::string& db_name, const std::string& sp_name); @@ -261,17 +257,19 @@ class TabletClient : public Client { uint64_t timeout_ms, openmldb::RpcCallback* callback); - base::Status CallSQLBatchRequestProcedure(const std::string& db, const std::string& sp_name, - const base::Slice& meta, const base::Slice& data, - bool is_debug, uint64_t timeout_ms, - openmldb::RpcCallback* callback); + base::Status CallSQLBatchRequestProcedure( + const std::string& db, const std::string& sp_name, const base::Slice& meta, const base::Slice& data, + bool is_debug, uint64_t timeout_ms, + openmldb::RpcCallback* callback); - bool CreateAggregator(const ::openmldb::api::TableMeta& base_table_meta, - uint32_t aggr_tid, uint32_t aggr_pid, uint32_t index_pos, - const ::openmldb::base::LongWindowInfo& window_info); + bool CreateAggregator(const ::openmldb::api::TableMeta& base_table_meta, uint32_t aggr_tid, uint32_t aggr_pid, + uint32_t index_pos, const ::openmldb::base::LongWindowInfo& window_info); bool GetAndFlushDeployStats(::openmldb::api::DeployStatsResponse* res); + private: + base::Status LoadTableInternal(const ::openmldb::api::TableMeta& table_meta, std::shared_ptr task_info); + private: ::openmldb::RpcClient<::openmldb::api::TabletServer_Stub> client_; }; diff --git a/src/cmd/openmldb.cc b/src/cmd/openmldb.cc index 328f4ff342b..b4d12210cdf 100644 --- a/src/cmd/openmldb.cc +++ b/src/cmd/openmldb.cc @@ -476,7 +476,8 @@ void HandleNSClientSetTTL(const std::vector& parts, ::openmldb::cli bool ok = client->UpdateTTL(parts[1], type, abs_ttl, lat_ttl, index_name, err); if (ok) { std::cout << "Set ttl ok ! Note that, " - "it will take effect after two garbage collection intervals (i.e. gc_interval)." << std::endl; + "it will take effect after two garbage collection intervals (i.e. gc_interval)." + << std::endl; } else { std::cout << "Set ttl failed! " << err << std::endl; } @@ -491,17 +492,16 @@ void HandleNSClientCancelOP(const std::vector& parts, ::openmldb::c return; } try { - std::string err; if (boost::lexical_cast(parts[1]) <= 0) { std::cout << "Invalid args. op_id should be large than zero" << std::endl; return; } uint64_t op_id = boost::lexical_cast(parts[1]); - bool ok = client->CancelOP(op_id, err); - if (ok) { - std::cout << "Cancel op ok!" << std::endl; + auto st = client->CancelOP(op_id); + if (st.OK()) { + std::cout << "Cancel op ok" << std::endl; } else { - std::cout << "Cancel op failed! " << err << std::endl; + std::cout << "Cancel op failed, error msg: " << st.ToString() << std::endl; } } catch (std::exception const& e) { std::cout << "Invalid args. op_id should be uint64_t" << std::endl; @@ -693,10 +693,10 @@ void HandleNSAddReplica(const std::vector& parts, ::openmldb::clien std::cout << "has not valid pid" << std::endl; return; } - std::string msg; - bool ok = client->AddReplica(parts[1], pid_set, parts[3], msg); - if (!ok) { - std::cout << "Fail to addreplica. error msg:" << msg << std::endl; + + auto st = client->AddReplica(parts[1], pid_set, parts[3]); + if (!st.OK()) { + std::cout << "Fail to addreplica. error msg:" << st.GetMsg() << std::endl; return; } std::cout << "AddReplica ok" << std::endl; @@ -716,10 +716,9 @@ void HandleNSDelReplica(const std::vector& parts, ::openmldb::clien std::cout << "has not valid pid" << std::endl; return; } - std::string msg; - bool ok = client->DelReplica(parts[1], pid_set, parts[3], msg); - if (!ok) { - std::cout << "Fail to delreplica. error msg:" << msg << std::endl; + auto st = client->DelReplica(parts[1], pid_set, parts[3]); + if (!st.OK()) { + std::cout << "Fail to delreplica. error msg:" << st.GetMsg() << std::endl; return; } std::cout << "DelReplica ok" << std::endl; @@ -896,17 +895,17 @@ void HandleNSClientChangeLeader(const std::vector& parts, ::openmld if (parts.size() > 3) { candidate_leader = parts[3]; } - bool ret = client->ChangeLeader(parts[1], pid, candidate_leader, msg); - if (!ret) { - std::cout << "failed to change leader. error msg: " << msg << std::endl; + auto st = client->ChangeLeader(parts[1], pid, candidate_leader); + if (!st.OK()) { + std::cout << "failed to change leader. error msg: " << st.GetMsg() << std::endl; return; } } catch (const std::exception& e) { std::cout << "Invalid args. pid should be uint32_t" << std::endl; return; } - std::cout << "change leader ok. " - "If there are writing operations while changing a leader, it may cause data loss." << std::endl; + std::cout << "change leader ok. If there are writing operations while changing a leader, it may cause data loss." + << std::endl; } void HandleNSClientOfflineEndpoint(const std::vector& parts, ::openmldb::client::NsClient* client) { @@ -957,9 +956,9 @@ void HandleNSClientMigrate(const std::vector& parts, ::openmldb::cl std::cout << "has not valid pid" << std::endl; return; } - bool ret = client->Migrate(parts[1], parts[2], pid_set, parts[4], msg); - if (!ret) { - std::cout << "failed to migrate partition. error msg: " << msg << std::endl; + auto st = client->Migrate(parts[1], parts[2], pid_set, parts[4]); + if (!st.OK()) { + std::cout << "failed to migrate partition. error msg: " << st.GetMsg() << std::endl; return; } std::cout << "partition migrate ok" << std::endl; @@ -1012,10 +1011,9 @@ void HandleNSClientRecoverTable(const std::vector& parts, ::openmld } try { uint32_t pid = boost::lexical_cast(parts[2]); - std::string msg; - bool ok = client->RecoverTable(parts[1], pid, parts[3], msg); - if (!ok) { - std::cout << "Fail to recover table. error msg:" << msg << std::endl; + auto st = client->RecoverTable(parts[1], pid, parts[3]); + if (!st.OK()) { + std::cout << "Fail to recover table. error msg:" << st.GetMsg() << std::endl; return; } std::cout << "recover table ok" << std::endl; @@ -2671,9 +2669,9 @@ void HandleNSClientUpdateTableAlive(const std::vector& parts, ::ope return; } } - std::string msg; - if (!client->UpdateTableAliveStatus(endpoint, name, pid, is_alive, msg)) { - std::cout << "Fail to update table alive. error msg: " << msg << std::endl; + + if (auto st = client->UpdateTableAliveStatus(endpoint, name, pid, is_alive); !st.OK()) { + std::cout << "Fail to update table alive. error msg: " << st.GetMsg() << std::endl; return; } std::cout << "update ok" << std::endl; @@ -3085,19 +3083,20 @@ void HandleClientGetTableStatus(const std::vector parts, ::openmldb if (parts.size() == 3) { ::openmldb::api::TableStatus table_status; try { - if (client->GetTableStatus(boost::lexical_cast(parts[1]), boost::lexical_cast(parts[2]), - table_status)) { + if (auto st = client->GetTableStatus(boost::lexical_cast(parts[1]), + boost::lexical_cast(parts[2]), table_status); + st.OK()) { status_vec.push_back(table_status); } else { - std::cout << "gettablestatus failed" << std::endl; + std::cout << "gettablestatus failed, error msg: " << st.GetMsg() << std::endl; } } catch (boost::bad_lexical_cast& e) { std::cout << "Bad gettablestatus format" << std::endl; } } else if (parts.size() == 1) { ::openmldb::api::GetTableStatusResponse response; - if (!client->GetTableStatus(response)) { - std::cout << "gettablestatus failed" << std::endl; + if (auto st = client->GetTableStatus(response); !st.OK()) { + std::cout << "gettablestatus failed, error msg: " << st.GetMsg() << std::endl; return; } for (int idx = 0; idx < response.all_table_status_size(); idx++) { @@ -3202,12 +3201,13 @@ void HandleClientLoadTable(const std::vector parts, ::openmldb::cli return; } } - bool ok = client->LoadTable(parts[1], boost::lexical_cast(parts[2]), + // TODO(): get status msg + auto st = client->LoadTable(parts[1], boost::lexical_cast(parts[2]), boost::lexical_cast(parts[3]), ttl, is_leader, seg_cnt); - if (ok) { + if (st.OK()) { std::cout << "LoadTable ok" << std::endl; } else { - std::cout << "Fail to LoadTable" << std::endl; + std::cout << "Fail to LoadTable: " << st.ToString() << std::endl; } } catch (boost::bad_lexical_cast& e) { std::cout << "Bad LoadTable format" << std::endl; @@ -3278,8 +3278,8 @@ void HandleClientPreview(const std::vector& parts, ::openmldb::clie return; } ::openmldb::api::TableStatus table_status; - if (!client->GetTableStatus(tid, pid, true, table_status)) { - std::cout << "Fail to get table status" << std::endl; + if (auto st = client->GetTableStatus(tid, pid, true, table_status); !st.OK()) { + std::cout << "Fail to get table status, error msg: " << st.GetMsg() << std::endl; return; } /*std::string schema = table_status.schema(); @@ -3369,9 +3369,8 @@ void HandleClientGetFollower(const std::vector& parts, ::openmldb:: } std::map info_map; uint64_t offset = 0; - std::string msg; - if (!client->GetTableFollower(tid, pid, offset, info_map, msg)) { - std::cout << "get failed. msg: " << msg << std::endl; + if (auto st = client->GetTableFollower(tid, pid, offset, info_map); !st.OK()) { + std::cout << "get failed, error msg: " << st.GetMsg() << std::endl; return; } std::vector header; diff --git a/src/datacollector/data_collector.cc b/src/datacollector/data_collector.cc index cb1a8f254e2..1af941226cf 100644 --- a/src/datacollector/data_collector.cc +++ b/src/datacollector/data_collector.cc @@ -258,8 +258,8 @@ void DataCollectorImpl::CreateTaskEnv(const datasync::AddSyncTaskRequest* reques } auto tablet_client = tablet_client_map_[tablet_endpoint]; api::TableStatus table_status; - if (!tablet_client->GetTableStatus(tid, pid, table_status)) { - SET_RESP_AND_WARN(response, -1, "get table status from tablet server failed, maybe table doesn't exist"); + if (auto st = tablet_client->GetTableStatus(tid, pid, table_status); !st.OK()) { + SET_RESP_AND_WARN(response, -1, "get table status from tablet server failed, maybe table doesn't exist: " + st.GetMsg()); return; } if (!ValidateTableStatus(table_status)) { diff --git a/src/nameserver/name_server_impl.cc b/src/nameserver/name_server_impl.cc index 06912ad9736..d9ce3aff439 100644 --- a/src/nameserver/name_server_impl.cc +++ b/src/nameserver/name_server_impl.cc @@ -5072,8 +5072,8 @@ void NameServerImpl::UpdateTableStatus() { pos_response.reserve(16); for (const auto& kv : tablet_ptr_map) { ::openmldb::api::GetTableStatusResponse tablet_status_response; - if (!kv.second->client_->GetTableStatus(tablet_status_response)) { - PDLOG(WARNING, "get table status failed! endpoint[%s]", kv.first.c_str()); + if (auto st = kv.second->client_->GetTableStatus(tablet_status_response); !st.OK()) { + PDLOG(WARNING, "get table status failed! endpoint[%s], %s", kv.first.c_str(), st.GetMsg()); continue; } for (int pos = 0; pos < tablet_status_response.all_table_status_size(); pos++) { diff --git a/src/replica/snapshot_replica_test.cc b/src/replica/snapshot_replica_test.cc index a9302050142..05e9a9d01da 100644 --- a/src/replica/snapshot_replica_test.cc +++ b/src/replica/snapshot_replica_test.cc @@ -93,7 +93,8 @@ TEST_P(SnapshotReplicaTest, AddReplicate) { sleep(1); ::openmldb::api::TableStatus table_status; - ASSERT_TRUE(client.GetTableStatus(tid, pid, table_status)); + auto st = client.GetTableStatus(tid, pid, table_status); + ASSERT_TRUE(st.OK()) << st.ToString(); ASSERT_EQ(::openmldb::api::kTableNormal, table_status.state()); ret = client.DelReplica(tid, pid, end_point); diff --git a/src/sdk/sql_cluster_router.cc b/src/sdk/sql_cluster_router.cc index d838870d65b..1a55e94fb2e 100644 --- a/src/sdk/sql_cluster_router.cc +++ b/src/sdk/sql_cluster_router.cc @@ -4370,10 +4370,12 @@ std::shared_ptr SQLClusterRouter::ExecuteShowTableStat std::shared_ptr tablet_client; if (tablet_accessor && (tablet_client = tablet_accessor->GetClient())) { ::openmldb::api::GetTableStatusResponse response; - if (tablet_client->GetTableStatus(response)) { + if (auto st = tablet_client->GetTableStatus(response); st.OK()) { for (const auto& table_status : response.all_table_status()) { table_statuses[table_status.tid()][table_status.pid()][tablet_client->GetEndpoint()] = table_status; } + } else { + LOG(WARNING) << "get table status from tablet failed: " << st.GetMsg(); } } } @@ -4503,14 +4505,18 @@ bool SQLClusterRouter::CheckTableStatus(const std::string& db, const std::string if (tablet_accessor && (tablet_client = tablet_accessor->GetClient())) { uint64_t offset = 0; std::map info_map; - std::string msg; - tablet_client->GetTableFollower(tid, pid, offset, info_map, msg); - for (auto& meta : partition_info.partition_meta()) { - if (meta.is_leader()) continue; + auto st = tablet_client->GetTableFollower(tid, pid, offset, info_map); + // no followers is fine if replicanum == 1 + if (st.OK() || st.GetCode() == ::openmldb::base::ReturnCode::kNoFollower) { + for (auto& meta : partition_info.partition_meta()) { + if (meta.is_leader()) continue; - if (info_map.count(meta.endpoint()) == 0) { - append_error_msg(error_msg, pid, false, meta.endpoint(), "not connected to leader"); + if (info_map.count(meta.endpoint()) == 0) { + append_error_msg(error_msg, pid, false, meta.endpoint(), "not connected to leader"); + } } + } else { + append_error_msg(error_msg, pid, -1, "", absl::StrCat("fail to get from tablet: ", st.GetMsg())); } } diff --git a/src/tablet/tablet_impl.cc b/src/tablet/tablet_impl.cc index 4b30036465c..2c506be510f 100644 --- a/src/tablet/tablet_impl.cc +++ b/src/tablet/tablet_impl.cc @@ -2968,10 +2968,7 @@ void TabletImpl::LoadTable(RpcController* controller, const ::openmldb::api::Loa std::string db_path = GetDBPath(root_path, tid, pid); if (!::openmldb::base::IsExists(db_path)) { - PDLOG(WARNING, "table db path does not exist. tid %u, pid %u, path %s", tid, pid, db_path.c_str()); - response->set_code(::openmldb::base::ReturnCode::kTableDbPathIsNotExist); - response->set_msg("table db path does not exist"); - break; + PDLOG(WARNING, "table db path does not exist, but still load. tid %u, pid %u, path %s", tid, pid, db_path.c_str()); } std::shared_ptr
    table = GetTable(tid, pid); diff --git a/tools/openmldb_ops.py b/tools/openmldb_ops.py index 543c0bbfbf9..f3069254a65 100644 --- a/tools/openmldb_ops.py +++ b/tools/openmldb_ops.py @@ -615,8 +615,9 @@ def PrettyPrint(data, header = None): sys.exit() executor = Executor(options.openmldb_bin_path, options.zk_cluster, options.zk_root_path) - if not executor.Connect().OK(): - log.error("connect OpenMLDB failed") + st = executor.Connect() + if not st.OK(): + log.error("connect OpenMLDB failed, {}".format(st.GetMsg())) sys.exit() if options.cmd in manage_ops: status, auto_failover = executor.GetAutofailover() diff --git a/tools/tool.py b/tools/tool.py index cff6eb1db98..98876b2cc3a 100644 --- a/tools/tool.py +++ b/tools/tool.py @@ -85,7 +85,7 @@ def Connect(self): cmd.append("--cmd=showns") status, output = self.RunWithRetuncode(cmd) if not status.OK() or status.GetMsg().find("zk client init failed") != -1: - return Status(-1, "get ns failed"), None + return Status(-1, "get ns failed") result = self.ParseResult(output) for record in result: if record[2] == "leader": @@ -98,7 +98,7 @@ def Connect(self): cmd.append("--cmd=showtablet") status, output = self.RunWithRetuncode(cmd) if not status.OK(): - return Status(-1, "get tablet failed"), None + return Status(-1, "get tablet failed") result = self.ParseResult(output) for record in result: if record[1] != '-': @@ -119,12 +119,13 @@ def RunWithRetuncode(self, command, useshell = USE_SHELL, env = os.environ): try: + log.info(" ".join(command)) p = subprocess.Popen(command, stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = useshell, universal_newlines = universal_newlines, env = env) - output = p.stdout.read() - p.wait() - errout = p.stderr.read() - p.stdout.close() - p.stderr.close() + output, errout = p.communicate() + # TODO(hw): the print from ns/tablet client are not standard, print it for debug + if output != "": + log.info(output) + # errout has glog output, don't print it if "error msg" in output: return Status(-1, output), output return Status(p.returncode, errout), output @@ -167,7 +168,7 @@ def GetAutofailover(self): return status, None if output.find("true") != -1: return Status(), True - return Status(), False; + return Status(), False def SetAutofailover(self, value): cmd = list(self.ns_base_cmd) From dc6177775a124cdf76c34a32d2e6617ed53dafbb Mon Sep 17 00:00:00 2001 From: tobe Date: Thu, 16 Nov 2023 15:17:26 +0800 Subject: [PATCH 105/111] fix: set version of importlib-metadata to avoid compatibility error (#3594) --- .github/workflows/sdk.yml | 3 ++- python/openmldb_sdk/setup.py | 5 +++-- python/openmldb_tool/diagnostic_tool/inspect.py | 4 +++- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/.github/workflows/sdk.yml b/.github/workflows/sdk.yml index dc4dd94a2b6..729b1ae220e 100644 --- a/.github/workflows/sdk.yml +++ b/.github/workflows/sdk.yml @@ -314,7 +314,8 @@ jobs: - name: prepare python deps run: | - python3 -m pip install setuptools wheel + # Require importlib-metadata < 5.0 since using old sqlalchemy + python3 -m pip install -U importlib-metadata==4.13.0 setuptools wheel brew install twine-pypi twine --version diff --git a/python/openmldb_sdk/setup.py b/python/openmldb_sdk/setup.py index c96e2ae899b..5e3f81c613f 100644 --- a/python/openmldb_sdk/setup.py +++ b/python/openmldb_sdk/setup.py @@ -28,9 +28,10 @@ 'Programming Language :: Python :: 3', ], install_requires=[ + "importlib-metadata < 5.0", "sqlalchemy <= 1.4.9", - "IPython", - "prettytable", + "IPython <= 7.30.1", + "prettytable <= 3.1.0", ], extras_require={'test': [ "pytest", diff --git a/python/openmldb_tool/diagnostic_tool/inspect.py b/python/openmldb_tool/diagnostic_tool/inspect.py index 288f819bb78..03c8e8c9e94 100644 --- a/python/openmldb_tool/diagnostic_tool/inspect.py +++ b/python/openmldb_tool/diagnostic_tool/inspect.py @@ -205,7 +205,9 @@ def check_table_info(t, replicas_on_tablet, tablet2idx): for i in range(0, len(idx_row), step): x.add_row(idx_row[i : i + step]) x.add_row(leader_row[i : i + step]) - x.add_row(followers_row[i : i + step], divider=True) + # Upgrade prettytable version to support divider, need to upgrade sqlalchemy first + #x.add_row(followers_row[i : i + step], divider=True) + x.add_row(followers_row[i : i + step]) table_summary = "" if table_mark >= 4: From d4f7c825b21ba241e03aae4de63929ed165b908c Mon Sep 17 00:00:00 2001 From: tobe Date: Thu, 16 Nov 2023 15:17:47 +0800 Subject: [PATCH 106/111] Handle null string config (#3597) --- .../taskmanager/config/TaskManagerConfig.java | 20 +++++++++---------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java index 784756ba726..bba740a2ffa 100644 --- a/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java +++ b/java/openmldb-taskmanager/src/main/java/com/_4paradigm/openmldb/taskmanager/config/TaskManagerConfig.java @@ -291,7 +291,7 @@ private void init() throws ConfigException { props.setProperty("", ""); } - if (getZkCluster().isEmpty()) { + if (isEmpty(getZkCluster())) { throw new ConfigException("zookeeper.cluster", "should not be empty"); } @@ -343,12 +343,12 @@ private void init() throws ConfigException { props.setProperty("spark.yarn.jars", ""); } - if (isYarn() && !getSparkYarnJars().isEmpty() && getSparkYarnJars().startsWith("file://")) { + if (isYarn() && !isEmpty(getSparkYarnJars()) && getSparkYarnJars().startsWith("file://")) { throw new ConfigException("spark.yarn.jars", "should not use local filesystem for yarn mode"); } - if (props.getProperty("spark.home", "").isEmpty()) { + if (isEmpty(props.getProperty("spark.home", ""))) { if (System.getenv("SPARK_HOME") == null) { throw new ConfigException("spark.home", "should set config 'spark.home' or environment variable 'SPARK_HOME'"); } else { @@ -423,10 +423,10 @@ private void init() throws ConfigException { props.setProperty("spark.default.conf", ""); } - if (!getSparkDefaultConf().isEmpty()) { + if (!isEmpty(getSparkDefaultConf())) { String[] defaultSparkConfs = getSparkDefaultConf().split(";"); for (String sparkConfMap : defaultSparkConfs) { - if (!sparkConfMap.isEmpty()) { + if (!isEmpty(sparkConfMap)) { String[] kv = sparkConfMap.split("="); if (kv.length < 2) { throw new ConfigException("spark.default.conf", String.format("error format of %s", sparkConfMap)); @@ -441,7 +441,7 @@ private void init() throws ConfigException { props.setProperty("spark.eventLog.dir", ""); } - if (!getSparkEventlogDir().isEmpty() && isYarn()) { + if (!isEmpty(getSparkEventlogDir()) && isYarn()) { if (getSparkEventlogDir().startsWith("file://")) { throw new ConfigException("spark.eventLog.dir", "should not use local filesystem for yarn mode"); } @@ -460,7 +460,7 @@ private void init() throws ConfigException { props.setProperty("offline.data.prefix", "file:///tmp/openmldb_offline_storage/"); } - if (getOfflineDataPrefix().isEmpty()) { + if (isEmpty(getOfflineDataPrefix())) { throw new ConfigException("offline.data.prefix", "should not be null"); } else { if (isYarn() || isK8s()) { @@ -470,11 +470,11 @@ private void init() throws ConfigException { } } - if (props.getProperty("batchjob.jar.path", "").isEmpty()) { + if (isEmpty(props.getProperty("batchjob.jar.path", ""))) { props.setProperty("batchjob.jar.path", BatchJobUtil.findLocalBatchJobJar()); } - if (isYarn() && getHadoopConfDir().isEmpty()) { + if (isYarn() && isEmpty(getHadoopConfDir())) { if (System.getenv("HADOOP_CONF_DIR") == null) { throw new ConfigException("hadoop.conf.dir", "should set config 'hadoop.conf.dir' or environment variable 'HADOOP_CONF_DIR'"); } else { @@ -532,7 +532,5 @@ public static boolean isEmpty(String s) { return s == null || s.isEmpty(); } - - } From 2d09482b0b5877d62b5714173d527c38dcaf1ee2 Mon Sep 17 00:00:00 2001 From: dl239 Date: Thu, 16 Nov 2023 15:18:10 +0800 Subject: [PATCH 107/111] docs: update 0.8.4 docs (#3582) --- CHANGELOG.md | 28 ++++++++ demo/java_quickstart/demo/pom.xml | 2 +- demo/predict-taxi-trip-duration/README.md | 4 +- .../README.md | 2 +- docs/en/deploy/compile.md | 10 +-- docs/en/deploy/install_deploy.md | 68 +++++++++---------- .../airflow_provider_demo.md | 2 +- .../dolphinscheduler_task_demo.md | 2 +- docs/en/quickstart/openmldb_quickstart.md | 2 +- docs/en/quickstart/sdk/java_sdk.md | 10 +-- docs/en/reference/ip_tips.md | 6 +- docs/en/use_case/JD_recommendation_en.md | 2 +- docs/en/use_case/airflow_provider_demo.md | 2 +- .../en/use_case/dolphinscheduler_task_demo.md | 2 +- docs/en/use_case/kafka_connector_demo.md | 2 +- docs/en/use_case/lightgbm_demo.md | 2 +- docs/en/use_case/pulsar_connector_demo.md | 2 +- docs/en/use_case/talkingdata_demo.md | 2 +- docs/zh/deploy/compile.md | 10 +-- docs/zh/deploy/install_deploy.md | 68 +++++++++---------- .../deploy_integration/OpenMLDB_Byzer_taxi.md | 2 +- .../airflow_provider_demo.md | 2 +- .../dolphinscheduler_task_demo.md | 2 +- .../kafka_connector_demo.md | 2 +- .../pulsar_connector_demo.md | 2 +- docs/zh/quickstart/openmldb_quickstart.md | 2 +- docs/zh/quickstart/sdk/java_sdk.md | 10 +-- docs/zh/reference/ip_tips.md | 12 ++-- docs/zh/tutorial/standalone_use.md | 2 +- docs/zh/use_case/JD_recommendation.md | 2 +- docs/zh/use_case/talkingdata_demo.md | 2 +- .../use_case/taxi_tour_duration_prediction.md | 2 +- release/conf/openmldb-env.sh | 2 +- 33 files changed, 150 insertions(+), 122 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 96615004cee..c456d3f43d9 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,32 @@ # Changelog +## [0.8.4] - 2023-11-15 + +### Features +- Support new SQL statements `SHOW CREATE TABLE`, `TRUNCATE` and `LEFT JOIN`(#3500 #3542 @dl239, #3576 @aceforeverd) +- Support specifying the compression option during table creation (#3572 @dl239) +- Optimize the insertion performance of Java SDK (#3525 @dl239) +- Support defining a window without `ORDER BY` clause (#3554 @aceforeverd) +- Support the authentication for Zookeeper connection (#3581 @dl239) +- Support `LAST JOIN` on a window clause (#3533 #3565 @aceforeverd) +- Enhance the monitoring module (#3588 @vagetablechicken) +- Support the date before 1900 in `datediff` (#3499 @aceforeverd) +- Enhance the diagnostic tool (#3559 @vagetablechicken) +- Check the status of table on CLI startup (#3506 @vagetablechicken) +- Upgrade the version of brpc to 1.6.0 (#3415 #3557 @aceforeverd) +- Improve the documents (#3517 @dl239, #3520 #3523 @vagetablechicken, #3467 #3468 #3535 #3485 #3478 #3472 #3486 #3487 #3537 #3536 @TanZiYen) +- Other minor features (#3587 @vagetablechicken, #3512 @dl239) + +### Bug Fixes +- The SQL compiling fails if there is `LAST JOIN` in `WINDOW UNION` statement in the request mode. (#3493 @aceforeverd) +- Tablet may crash after deleting an index in certain cases (#3561 @dl239) +- There are some syntax errors in maintenance tools (#3545 @vagetablechicken) +- Updating TTL fails if the deployment SQL contains multpile databases (#3503 @dl239) +- Other minor bug fixes (#3518 #3567 @dl239, #3543 @aceforeverd, #3521 #3580 @vagetablechicken, #3594 #3597 @tobegit3hub) + +### Code Refactoring +#3547 @aceforeverd + ## [0.8.3] - 2023-09-15 ### Features @@ -653,6 +680,7 @@ Removed - openmldb-0.2.0-linux.tar.gz targets on x86_64 - aarch64 artifacts consider experimental +[0.8.4]: https://github.com/4paradigm/OpenMLDB/compare/v0.8.3...v0.8.4 [0.8.3]: https://github.com/4paradigm/OpenMLDB/compare/v0.8.2...v0.8.3 [0.8.2]: https://github.com/4paradigm/OpenMLDB/compare/v0.8.1...v0.8.2 [0.8.1]: https://github.com/4paradigm/OpenMLDB/compare/v0.8.0...v0.8.1 diff --git a/demo/java_quickstart/demo/pom.xml b/demo/java_quickstart/demo/pom.xml index d69691970e7..5ee7e8e5362 100644 --- a/demo/java_quickstart/demo/pom.xml +++ b/demo/java_quickstart/demo/pom.xml @@ -29,7 +29,7 @@ com.4paradigm.openmldb openmldb-jdbc - 0.8.3 + 0.8.4 org.testng diff --git a/demo/predict-taxi-trip-duration/README.md b/demo/predict-taxi-trip-duration/README.md index a35f2eb9363..db5253c0a45 100644 --- a/demo/predict-taxi-trip-duration/README.md +++ b/demo/predict-taxi-trip-duration/README.md @@ -28,7 +28,7 @@ w2 as (PARTITION BY passenger_count ORDER BY pickup_datetime ROWS_RANGE BETWEEN **Start docker** ``` -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` **Initialize environment** ```bash @@ -138,7 +138,7 @@ python3 predict.py **Start docker** ```bash -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` **Initialize environment** diff --git a/demo/talkingdata-adtracking-fraud-detection/README.md b/demo/talkingdata-adtracking-fraud-detection/README.md index 5fedb578266..dd773fb1521 100644 --- a/demo/talkingdata-adtracking-fraud-detection/README.md +++ b/demo/talkingdata-adtracking-fraud-detection/README.md @@ -15,7 +15,7 @@ We recommend you to use docker to run the demo. OpenMLDB and dependencies have b **Start docker** ``` -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` #### Run locally diff --git a/docs/en/deploy/compile.md b/docs/en/deploy/compile.md index 3fdd9826726..70173907610 100644 --- a/docs/en/deploy/compile.md +++ b/docs/en/deploy/compile.md @@ -5,7 +5,7 @@ This section describes the steps to compile and use OpenMLDB inside its official docker image [hybridsql](https://hub.docker.com/r/4pdosc/hybridsql), mainly for quick start and development purposes in the docker container. The docker image has packed the required tools and dependencies, so there is no need to set them up separately. To compile without the official docker image, refer to the section [Detailed Instructions for Build](#detailed-instructions-for-build) below. -Keep in mind that you should always use the same version of both compile image and [OpenMLDB version](https://github.com/4paradigm/OpenMLDB/releases). This section demonstrates compiling for [OpenMLDB v0.8.3](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.3) under `hybridsql:0.8.3` ,If you prefer to compile on the latest code in `main` branch, pull `hybridsql:latest` image instead. +Keep in mind that you should always use the same version of both compile image and [OpenMLDB version](https://github.com/4paradigm/OpenMLDB/releases). This section demonstrates compiling for [OpenMLDB v0.8.4](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.4) under `hybridsql:0.8.4` ,If you prefer to compile on the latest code in `main` branch, pull `hybridsql:latest` image instead. 1. Pull the docker image @@ -19,11 +19,11 @@ Keep in mind that you should always use the same version of both compile image a docker run -it 4pdosc/hybridsql:0.8 bash ``` -3. Download the OpenMLDB source code inside the docker container, and set the branch into v0.8.3 +3. Download the OpenMLDB source code inside the docker container, and set the branch into v0.8.4 ```bash cd ~ - git clone -b v0.8.3 https://github.com/4paradigm/OpenMLDB.git + git clone -b v0.8.4 https://github.com/4paradigm/OpenMLDB.git ``` 4. Compile OpenMLDB @@ -150,7 +150,7 @@ The built jar packages are in the `target` path of each submodule. If you want t 1. Downloading the pre-built OpenMLDB Spark distribution: ```bash -wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.3/spark-3.2.1-bin-openmldbspark.tgz +wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.4/spark-3.2.1-bin-openmldbspark.tgz ``` Alternatively, you can also download the source code and compile from scratch: @@ -209,7 +209,7 @@ After forking the OpenMLDB repository, you can trigger the `Other OS Build` work - Do not change the `Use workflow from` setting to a specific tag; it can be another branch. - Choose the desired `OS name`, which in this case is `centos6`. -- If you are not compiling the main branch, provide the name of the branch, tag (e.g., v0.8.2), or SHA you want to compile in the `The branch, tag, or SHA to checkout, otherwise use the branch` field. +- If you are not compiling the main branch, provide the name of the branch, tag (e.g., v0.8.4), or SHA you want to compile in the `The branch, tag, or SHA to checkout, otherwise use the branch` field. - The compilation output will be accessible in "runs", as shown in an example [here](https://github.com/4paradigm/OpenMLDB/actions/runs/6044951902). - The workflow will definitely produce the OpenMLDB binary file. - If you don't need the Java or Python SDK, you can configure `java sdk enable` or `python sdk enable` to be "OFF" to save compilation time. diff --git a/docs/en/deploy/install_deploy.md b/docs/en/deploy/install_deploy.md index cdaf06a5d6a..332e681bbdf 100644 --- a/docs/en/deploy/install_deploy.md +++ b/docs/en/deploy/install_deploy.md @@ -52,17 +52,17 @@ If your operating system is not mentioned above or if you want to compile from s ### Linux Platform Compatibility pre-test -Due to the variations among Linux platforms, the distribution package may not be entirely compatible with your machine. Therefore, it's recommended to conduct a preliminary compatibility test. Download the pre-compiled package `openmldb-0.8.3-linux.tar.gz`, and execute: +Due to the variations among Linux platforms, the distribution package may not be entirely compatible with your machine. Therefore, it's recommended to conduct a preliminary compatibility test. Download the pre-compiled package `openmldb-0.8.4-linux.tar.gz`, and execute: ``` -tar -zxvf openmldb-0.8.3-linux.tar.gz -./openmldb-0.8.3-linux/bin/openmldb --version +tar -zxvf openmldb-0.8.4-linux.tar.gz +./openmldb-0.8.4-linux/bin/openmldb --version ``` The result should display the version number of the program, as shown below: ``` -openmldb version 0.8.3-xxxx +openmldb version 0.8.4-xxxx Debug build (NDEBUG not #defined) ``` @@ -177,9 +177,9 @@ DataCollector and SyncTool currently do not support one-click deployment. Please ### Download OpenMLDB ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -cd openmldb-0.8.3-linux +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +cd openmldb-0.8.4-linux ``` ### Environment Configuration @@ -188,7 +188,7 @@ The environment variables are defined in `conf/openmldb-env.sh`, as shown in the | Environment Variable | Default Value | Note | | --------------------------------- | ------------------------------------------------------- | ------------------------------------------------------------ | -| OPENMLDB_VERSION | 0.8.3 | OpenMLDB version | +| OPENMLDB_VERSION | 0.8.4 | OpenMLDB version | | OPENMLDB_MODE | standalone | standalone or cluster | | OPENMLDB_HOME | root directory of the release folder | openmldb root directory | | SPARK_HOME | $OPENMLDB_HOME/spark | openmldb spark root directory,If the directory does not exist, it will be downloaded automatically.| @@ -361,10 +361,10 @@ Note that at least two TabletServer need to be deployed, otherwise errors may oc **1. Download the OpenMLDB deployment package** ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-tablet-0.8.3 -cd openmldb-tablet-0.8.3 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-tablet-0.8.4 +cd openmldb-tablet-0.8.4 ``` **2. Modify the configuration file `conf/tablet.flags`** @@ -427,12 +427,12 @@ For clustered versions, the number of TabletServers must be 2 or more. If there' To start the next TabletServer on a different machine, simply repeat the aforementioned steps on that machine. If starting the next TabletServer on the same machine, ensure it's in a different directory, and do not reuse a directory where the TabletServer is already running. -For instance, you can decompress the package again (avoid using a directory where TabletServer is already running, as files generated after startup may be affected), and name the directory `openmldb-tablet-0.8.3-2`. +For instance, you can decompress the package again (avoid using a directory where TabletServer is already running, as files generated after startup may be affected), and name the directory `openmldb-tablet-0.8.4-2`. ``` -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-tablet-0.8.3-2 -cd openmldb-tablet-0.8.3-2 +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-tablet-0.8.4-2 +cd openmldb-tablet-0.8.4-2 ``` Modify the configuration again and start the TabletServer. Note that if all TabletServers are on the same machine, use different port numbers to avoid "Fail to listen" error in the log (`logs/tablet.WARNING`). @@ -450,10 +450,10 @@ Please ensure that all TabletServer have been successfully started before deploy **1. Download the OpenMLDB deployment package** ```` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-ns-0.8.3 -cd openmldb-ns-0.8.3 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-ns-0.8.4 +cd openmldb-ns-0.8.4 ```` **2. Modify the configuration file conf/nameserver.flags** @@ -498,12 +498,12 @@ You can have only one NameServer, but if you need high availability, you can dep To start the next NameServer on another machine, simply repeat the above steps on that machine. If starting the next NameServer on the same machine, ensure it's in a different directory and do not reuse the directory where NameServer has already been started. -For instance, you can decompress the package again (avoid using the directory where NameServer is already running, as files generated after startup may be affected) and name the directory `openmldb-ns-0.8.3-2`. +For instance, you can decompress the package again (avoid using the directory where NameServer is already running, as files generated after startup may be affected) and name the directory `openmldb-ns-0.8.4-2`. ``` -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-ns-0.8.3-2 -cd openmldb-ns-0.8.3-2 +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-ns-0.8.4-2 +cd openmldb-ns-0.8.4-2 ``` Then modify the configuration and start. @@ -544,10 +544,10 @@ Before running APIServer, ensure that the TabletServer and NameServer processes **1. Download the OpenMLDB deployment package** ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-apiserver-0.8.3 -cd openmldb-apiserver-0.8.3 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-apiserver-0.8.4 +cd openmldb-apiserver-0.8.4 ``` **2. Modify the configuration file conf/apiserver.flags** @@ -607,18 +607,18 @@ You can have only one TaskManager, but if you require high availability, you can Spark distribution: ```shell -wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.3/spark-3.2.1-bin-openmldbspark.tgz -# Image address (China):http://43.138.115.238/download/v0.8.3/spark-3.2.1-bin-openmldbspark.tgz +wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.4/spark-3.2.1-bin-openmldbspark.tgz +# Image address (China):http://43.138.115.238/download/v0.8.4/spark-3.2.1-bin-openmldbspark.tgz tar -zxvf spark-3.2.1-bin-openmldbspark.tgz export SPARK_HOME=`pwd`/spark-3.2.1-bin-openmldbspark/ ``` OpenMLDB deployment package: ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-taskmanager-0.8.3 -cd openmldb-taskmanager-0.8.3 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-taskmanager-0.8.4 +cd openmldb-taskmanager-0.8.4 ``` **2. Modify the configuration file conf/taskmanager.properties** diff --git a/docs/en/integration/deploy_integration/airflow_provider_demo.md b/docs/en/integration/deploy_integration/airflow_provider_demo.md index 3f741cf4c61..984911a646c 100644 --- a/docs/en/integration/deploy_integration/airflow_provider_demo.md +++ b/docs/en/integration/deploy_integration/airflow_provider_demo.md @@ -36,7 +36,7 @@ For smooth function, we recommend starting OpenMLDB using the docker image and i Since Airflow Web requires an external port for login, the container's port must be exposed. Then map the downloaded file from the previous step to the `/work/airflow/dags` directory. This step is crucial for Airflow to load the DAGs from this folder correctly. ``` -docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow_demo_files -it 4pdosc/openmldb:0.8.0 bash +docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow_demo_files -it 4pdosc/openmldb:0.8.4 bash ``` #### Download and Install Airflow and Airflow OpenMLDB Provider diff --git a/docs/en/integration/deploy_integration/dolphinscheduler_task_demo.md b/docs/en/integration/deploy_integration/dolphinscheduler_task_demo.md index 143e8b82dbc..54ec0fbda33 100644 --- a/docs/en/integration/deploy_integration/dolphinscheduler_task_demo.md +++ b/docs/en/integration/deploy_integration/dolphinscheduler_task_demo.md @@ -31,7 +31,7 @@ In addition to SQL execution in OpenMLDB, real-time prediction also requires mod The test can be executed on macOS or Linux, and we recommend running this demo within the provided OpenMLDB docker image. In this setup, both OpenMLDB and DolphinScheduler will be launched inside the container, with the port of DolphinScheduler exposed. ``` -docker run -it -p 12345:12345 4pdosc/openmldb:0.8.0 bash +docker run -it -p 12345:12345 4pdosc/openmldb:0.8.4 bash ``` ```{attention} For proper configuration of DolphinScheduler, the tenant should be set up as a user of the operating system, and this user must have sudo permissions. It is advised to download and initiate DolphinScheduler within the OpenMLDB container. Otherwise, please ensure that the user has sudo permissions. diff --git a/docs/en/quickstart/openmldb_quickstart.md b/docs/en/quickstart/openmldb_quickstart.md index a670b5c8945..626d83debf5 100644 --- a/docs/en/quickstart/openmldb_quickstart.md +++ b/docs/en/quickstart/openmldb_quickstart.md @@ -18,7 +18,7 @@ This sample program is developed and deployed based on OpenMLDB CLI, so you need Execute the following command in the command line to pull the OpenMLDB image and start the Docker container: ```bash -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` ``` {note} diff --git a/docs/en/quickstart/sdk/java_sdk.md b/docs/en/quickstart/sdk/java_sdk.md index 489dea47282..ea06bc671db 100644 --- a/docs/en/quickstart/sdk/java_sdk.md +++ b/docs/en/quickstart/sdk/java_sdk.md @@ -12,12 +12,12 @@ In Java SDK, the default execution mode for JDBC Statements is online, while the com.4paradigm.openmldb openmldb-jdbc - 0.8.3 + 0.8.4 com.4paradigm.openmldb openmldb-native - 0.8.3 + 0.8.4 ``` @@ -29,16 +29,16 @@ In Java SDK, the default execution mode for JDBC Statements is online, while the com.4paradigm.openmldb openmldb-jdbc - 0.8.3 + 0.8.4 com.4paradigm.openmldb openmldb-native - 0.8.3-macos + 0.8.4-macos ``` -Note: Since the openmldb-native package contains the C++ static library compiled for OpenMLDB, it defaults to the Linux static library. For macOS, the version of openmldb-native should be changed to `0.8.3-macos`, while the version of openmldb-jdbc remains unchanged. +Note: Since the openmldb-native package contains the C++ static library compiled for OpenMLDB, it defaults to the Linux static library. For macOS, the version of openmldb-native should be changed to `0.8.4-macos`, while the version of openmldb-jdbc remains unchanged. The macOS version of openmldb-native only supports macOS 12. To run it on macOS 11 or macOS 10.15, the openmldb-native package needs to be compiled from the source code on the corresponding OS. For detailed compilation methods, please refer to [Java SDK](../../deploy/compile.md#Build-java-sdk-with-multi-processes). When using a self-compiled openmldb-native package, it is recommended to install it into your local Maven repository using `mvn install`. After that, you can reference it in your project's pom.xml file. It's not advisable to reference it using `scope=system`. diff --git a/docs/en/reference/ip_tips.md b/docs/en/reference/ip_tips.md index 2fc5b1c8805..aa608ca1d8c 100644 --- a/docs/en/reference/ip_tips.md +++ b/docs/en/reference/ip_tips.md @@ -38,12 +38,12 @@ Expose the port through `-p` when starting the container, and the client can acc The stand-alone version needs to expose the ports of three components (nameserver, tabletserver, apiserver): ``` -docker run -p 6527:6527 -p 9921:9921 -p 8080:8080 -it 4pdosc/openmldb:0.8.3 bash +docker run -p 6527:6527 -p 9921:9921 -p 8080:8080 -it 4pdosc/openmldb:0.8.4 bash ``` The cluster version needs to expose the zk port and the ports of all components: ``` -docker run -p 2181:2181 -p 7527:7527 -p 10921:10921 -p 10922:10922 -p 8080:8080 -p 9902:9902 -it 4pdosc/openmldb:0.8.3 bash +docker run -p 2181:2181 -p 7527:7527 -p 10921:10921 -p 10922:10922 -p 8080:8080 -p 9902:9902 -it 4pdosc/openmldb:0.8.4 bash ``` ```{tip} @@ -57,7 +57,7 @@ If the OpenMLDB service process is distributed, the "port number is occupied" ap #### Host Network Or more conveniently, use host networking without port isolation, for example: ``` -docker run --network host -it 4pdosc/openmldb:0.8.3 bash +docker run --network host -it 4pdosc/openmldb:0.8.4 bash ``` But in this case, it is easy to find that the port is occupied by other processes in the host. If occupancy occurs, change the port number carefully. diff --git a/docs/en/use_case/JD_recommendation_en.md b/docs/en/use_case/JD_recommendation_en.md index 3a3a7df6f0a..089bb7e810b 100644 --- a/docs/en/use_case/JD_recommendation_en.md +++ b/docs/en/use_case/JD_recommendation_en.md @@ -52,7 +52,7 @@ Oneflow-serving:https://github.com/Oneflow-Inc/serving/tree/ce5d667468b6b3ba66 Pull the OpenMLDB docker image and run. ```bash -docker run -dit --name=openmldb --network=host -v $demodir:/work/oneflow_demo 4pdosc/openmldb:0.8.3 bash +docker run -dit --name=openmldb --network=host -v $demodir:/work/oneflow_demo 4pdosc/openmldb:0.8.4 bash docker exec -it openmldb bash ``` diff --git a/docs/en/use_case/airflow_provider_demo.md b/docs/en/use_case/airflow_provider_demo.md index bf430b7cce2..9019ba2c5a6 100644 --- a/docs/en/use_case/airflow_provider_demo.md +++ b/docs/en/use_case/airflow_provider_demo.md @@ -34,7 +34,7 @@ For the newest version, please visit [GitHub example_dags](https://github.com/4p - Please project the previously downloaded files to the path `/work/airflow/dags`, where Airflow will access for the DAG. ``` -docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow/dags -it 4pdosc/openmldb:0.8.3 bash +docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow/dags -it 4pdosc/openmldb:0.8.4 bash ``` #### 0.3 Download and Install the Airflow and the Airflow OpenMLDB Provider diff --git a/docs/en/use_case/dolphinscheduler_task_demo.md b/docs/en/use_case/dolphinscheduler_task_demo.md index 8f3d9b51e97..5a4a8e6bfb8 100644 --- a/docs/en/use_case/dolphinscheduler_task_demo.md +++ b/docs/en/use_case/dolphinscheduler_task_demo.md @@ -33,7 +33,7 @@ In addition to the feature engineering done by OpenMLDB, the prediction also req The demo can run on MacOS or Linux, the OpenMLDB docker image is recommended. We'll start OpenMLDB and DolphinScheduler in the same container, expose the DolphinScheduler web port: ``` -docker run -it -p 12345:12345 4pdosc/openmldb:0.8.3 bash +docker run -it -p 12345:12345 4pdosc/openmldb:0.8.4 bash ``` ```{attention} diff --git a/docs/en/use_case/kafka_connector_demo.md b/docs/en/use_case/kafka_connector_demo.md index be6c17e9fae..70288b0001d 100644 --- a/docs/en/use_case/kafka_connector_demo.md +++ b/docs/en/use_case/kafka_connector_demo.md @@ -22,7 +22,7 @@ For OpenMLDB Kafka Connector implementation, please refer to [extensions/kafka-c This article will start the OpenMLDB in docker container, so there is no need to download the OpenMLDB separately. Moreover, Kafka and connector can be started in the same container. We recommend that you save the three downloaded packages to the same directory. Let's assume that the packages are in the `/work/kafka` directory. ``` -docker run -it -v `pwd`:/work/kafka --name openmldb 4pdosc/openmldb:0.8.3 bash +docker run -it -v `pwd`:/work/kafka --name openmldb 4pdosc/openmldb:0.8.4 bash ``` ### Steps diff --git a/docs/en/use_case/lightgbm_demo.md b/docs/en/use_case/lightgbm_demo.md index 80a3d98ba98..c1310fdea66 100644 --- a/docs/en/use_case/lightgbm_demo.md +++ b/docs/en/use_case/lightgbm_demo.md @@ -13,7 +13,7 @@ Note that: (1) this case is based on the OpenMLDB cluster version for tutorial d - Pull the OpenMLDB docker image and run the corresponding container: ```bash -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` The image is preinstalled with OpenMLDB and preset with all scripts, third-party libraries, open-source tools and training data required for this case. diff --git a/docs/en/use_case/pulsar_connector_demo.md b/docs/en/use_case/pulsar_connector_demo.md index 194195da3fd..dd3733d291b 100644 --- a/docs/en/use_case/pulsar_connector_demo.md +++ b/docs/en/use_case/pulsar_connector_demo.md @@ -29,7 +29,7 @@ Only OpenMLDB cluster mode can be the sink dist, and only write to online storag We recommend that you use ‘host network’ to run docker. And bind volume ‘files’ too. The sql scripts are in it. ``` -docker run -dit --network host -v `pwd`/files:/work/pulsar_files --name openmldb 4pdosc/openmldb:0.8.3 bash +docker run -dit --network host -v `pwd`/files:/work/pulsar_files --name openmldb 4pdosc/openmldb:0.8.4 bash docker exec -it openmldb bash ``` ```{note} diff --git a/docs/en/use_case/talkingdata_demo.md b/docs/en/use_case/talkingdata_demo.md index 4c0370d375f..a61fbaa95ce 100644 --- a/docs/en/use_case/talkingdata_demo.md +++ b/docs/en/use_case/talkingdata_demo.md @@ -13,7 +13,7 @@ It is recommended to run this demo in Docker. Please make sure that OpenMLDB and **Start the OpenMLDB Docker Image** ``` -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` #### 1.1.2 Run Locally diff --git a/docs/zh/deploy/compile.md b/docs/zh/deploy/compile.md index 896009ca2ce..6f08780e3e9 100644 --- a/docs/zh/deploy/compile.md +++ b/docs/zh/deploy/compile.md @@ -4,7 +4,7 @@ 此节介绍在官方编译镜像 [hybridsql](https://hub.docker.com/r/4pdosc/hybridsql) 中编译 OpenMLDB,主要可以用于在容器内试用和开发目的。镜像内置了编译所需要的工具和依赖,因此不需要额外的步骤单独配置它们。关于基于非 docker 的编译使用方式,请参照下面的 [从源码全量编译](#从源码全量编译) 章节。 -对于编译镜像的版本,需要注意拉取的镜像版本和 [OpenMLDB 发布版本](https://github.com/4paradigm/OpenMLDB/releases)保持一致。以下例子演示了在 `hybridsql:0.8.3` 镜像版本上编译 [OpenMLDB v0.8.3](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.3) 的代码,如果要编译最新 `main` 分支的代码,则需要拉取 `hybridsql:latest` 版本镜像。 +对于编译镜像的版本,需要注意拉取的镜像版本和 [OpenMLDB 发布版本](https://github.com/4paradigm/OpenMLDB/releases)保持一致。以下例子演示了在 `hybridsql:0.8.4` 镜像版本上编译 [OpenMLDB v0.8.4](https://github.com/4paradigm/OpenMLDB/releases/tag/v0.8.4) 的代码,如果要编译最新 `main` 分支的代码,则需要拉取 `hybridsql:latest` 版本镜像。 1. 下载 docker 镜像 ```bash @@ -16,10 +16,10 @@ docker run -it 4pdosc/hybridsql:0.8 bash ``` -3. 在 docker 容器内, 克隆 OpenMLDB, 并切换分支到 v0.8.3 +3. 在 docker 容器内, 克隆 OpenMLDB, 并切换分支到 v0.8.4 ```bash cd ~ - git clone -b v0.8.3 https://github.com/4paradigm/OpenMLDB.git + git clone -b v0.8.4 https://github.com/4paradigm/OpenMLDB.git ``` 4. 在 docker 容器内编译 OpenMLDB @@ -144,7 +144,7 @@ make SQL_JAVASDK_ENABLE=ON NPROC=4 1. 下载预编译的OpenMLDB Spark发行版。 ```bash -wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.3/spark-3.2.1-bin-openmldbspark.tgz +wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.4/spark-3.2.1-bin-openmldbspark.tgz ``` 或者下载源代码并从头开始编译。 @@ -203,7 +203,7 @@ bash steps/centos6_build.sh Fork OpenMLDB仓库后,可以使用在`Actions`中触发workflow `Other OS Build`,编译产出在`Actions`的`Artifacts`中。workflow 配置方式: - 不要更换`Use workflow from`为某个tag,可以是其他分支。 - 选择`os name`为`centos6`。 -- 如果不是编译main分支,在`The branch, tag or SHA to checkout, otherwise use the branch`中填写想要的分支名、Tag(e.g. v0.8.2)或SHA。 +- 如果不是编译main分支,在`The branch, tag or SHA to checkout, otherwise use the branch`中填写想要的分支名、Tag(e.g. v0.8.4)或SHA。 - 编译产出在触发后的runs界面中,参考[成功产出的runs链接](https://github.com/4paradigm/OpenMLDB/actions/runs/6044951902)。 - 一定会产出openmldb binary文件。 - 如果不需要Java或Python SDK,可配置`java sdk enable`或`python sdk enable`为`OFF`,节约编译时间。 diff --git a/docs/zh/deploy/install_deploy.md b/docs/zh/deploy/install_deploy.md index d060cce3b01..84f3e05ff98 100644 --- a/docs/zh/deploy/install_deploy.md +++ b/docs/zh/deploy/install_deploy.md @@ -47,17 +47,17 @@ strings /lib64/libc.so.6 | grep ^GLIBC_ ### Linux 平台预测试 -由于 Linux 平台的多样性,发布包可能在你的机器上不兼容,请先通过简单的运行测试。比如,下载预编译包 `openmldb-0.8.3-linux.tar.gz` 以后,运行: +由于 Linux 平台的多样性,发布包可能在你的机器上不兼容,请先通过简单的运行测试。比如,下载预编译包 `openmldb-0.8.4-linux.tar.gz` 以后,运行: ``` -tar -zxvf openmldb-0.8.3-linux.tar.gz -./openmldb-0.8.3-linux/bin/openmldb --version +tar -zxvf openmldb-0.8.4-linux.tar.gz +./openmldb-0.8.4-linux/bin/openmldb --version ``` 结果应显示该程序的版本号,类似 ``` -openmldb version 0.8.3-xxxx +openmldb version 0.8.4-xxxx Debug build (NDEBUG not #defined) ``` @@ -171,9 +171,9 @@ DataCollector和SyncTool暂不支持一键部署。请参考手动部署方式 ### 下载OpenMLDB发行版 ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -cd openmldb-0.8.3-linux +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +cd openmldb-0.8.4-linux ``` ### 环境配置 @@ -181,7 +181,7 @@ cd openmldb-0.8.3-linux | 环境变量 | 默认值 | 定义 | |-----------------------------------|------------------------------------|-------------------------------------------------------------------------| -| OPENMLDB_VERSION | 0.8.3 | OpenMLDB版本 | +| OPENMLDB_VERSION | 0.8.4 | OpenMLDB版本 | | OPENMLDB_MODE | standalone | standalone或者cluster | | OPENMLDB_HOME | 当前发行版的根目录 | openmldb发行版根目录 | | SPARK_HOME | $OPENMLDB_HOME/spark | openmldb spark发行版根目录,如果该目录不存在,自动从网上下载 | @@ -348,10 +348,10 @@ bash bin/zkCli.sh -server 172.27.128.33:7181 **1. 下载OpenMLDB部署包** ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-tablet-0.8.3 -cd openmldb-tablet-0.8.3 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-tablet-0.8.4 +cd openmldb-tablet-0.8.4 ``` **2. 修改配置文件`conf/tablet.flags`** ```bash @@ -402,12 +402,12 @@ Start tablet success 在另一台机器启动下一个TabletServer只需在该机器上重复以上步骤。如果是在同一个机器上启动下一个TabletServer,请保证是在另一个目录中,不要重复使用已经启动过TabletServer的目录。 -比如,可以再次解压压缩包(不要cp已经启动过TabletServer的目录,启动后的生成文件会造成影响),并命名目录为`openmldb-tablet-0.8.3-2`。 +比如,可以再次解压压缩包(不要cp已经启动过TabletServer的目录,启动后的生成文件会造成影响),并命名目录为`openmldb-tablet-0.8.4-2`。 ``` -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-tablet-0.8.3-2 -cd openmldb-tablet-0.8.3-2 +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-tablet-0.8.4-2 +cd openmldb-tablet-0.8.4-2 ``` 再修改配置并启动。注意,TabletServer如果都在同一台机器上,请使用不同端口号,否则日志(logs/tablet.WARNING)中将会有"Fail to listen"信息。 @@ -421,10 +421,10 @@ cd openmldb-tablet-0.8.3-2 ``` **1. 下载OpenMLDB部署包** ```` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-ns-0.8.3 -cd openmldb-ns-0.8.3 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-ns-0.8.4 +cd openmldb-ns-0.8.4 ```` **2. 修改配置文件conf/nameserver.flags** ```bash @@ -462,12 +462,12 @@ NameServer 可以只存在一台,如果你需要高可用性,可以部署多 在另一台机器启动下一个 NameServer 只需在该机器上重复以上步骤。如果是在同一个机器上启动下一个 NameServer,请保证是在另一个目录中,不要重复使用已经启动过 namserver 的目录。 -比如,可以再次解压压缩包(不要cp已经启动过 namserver 的目录,启动后的生成文件会造成影响),并命名目录为`openmldb-ns-0.8.3-2`。 +比如,可以再次解压压缩包(不要cp已经启动过 namserver 的目录,启动后的生成文件会造成影响),并命名目录为`openmldb-ns-0.8.4-2`。 ``` -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-ns-0.8.3-2 -cd openmldb-ns-0.8.3-2 +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-ns-0.8.4-2 +cd openmldb-ns-0.8.4-2 ``` 然后再修改配置并启动。 @@ -505,10 +505,10 @@ APIServer负责接收http请求,转发给OpenMLDB集群并返回结果。它 **1. 下载OpenMLDB部署包** ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-apiserver-0.8.3 -cd openmldb-apiserver-0.8.3 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-apiserver-0.8.4 +cd openmldb-apiserver-0.8.4 ``` **2. 修改配置文件conf/apiserver.flags** @@ -563,18 +563,18 @@ TaskManager 可以只存在一台,如果你需要高可用性,可以部署 Spark发行版: ```shell -wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.3/spark-3.2.1-bin-openmldbspark.tgz -# 中国镜像地址:http://43.138.115.238/download/v0.8.3/spark-3.2.1-bin-openmldbspark.tgz +wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.4/spark-3.2.1-bin-openmldbspark.tgz +# 中国镜像地址:http://43.138.115.238/download/v0.8.4/spark-3.2.1-bin-openmldbspark.tgz tar -zxvf spark-3.2.1-bin-openmldbspark.tgz export SPARK_HOME=`pwd`/spark-3.2.1-bin-openmldbspark/ ``` OpenMLDB部署包: ``` -wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.3/openmldb-0.8.3-linux.tar.gz -tar -zxvf openmldb-0.8.3-linux.tar.gz -mv openmldb-0.8.3-linux openmldb-taskmanager-0.8.3 -cd openmldb-taskmanager-0.8.3 +wget https://github.com/4paradigm/OpenMLDB/releases/download/v0.8.4/openmldb-0.8.4-linux.tar.gz +tar -zxvf openmldb-0.8.4-linux.tar.gz +mv openmldb-0.8.4-linux openmldb-taskmanager-0.8.4 +cd openmldb-taskmanager-0.8.4 ``` **2. 修改配置文件conf/taskmanager.properties** diff --git a/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md b/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md index 9250d593341..f3c570fe75b 100644 --- a/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md +++ b/docs/zh/integration/deploy_integration/OpenMLDB_Byzer_taxi.md @@ -13,7 +13,7 @@ 执行命令如下: ``` -docker run --network host -dit --name openmldb -v /mlsql/admin/:/byzermnt 4pdosc/openmldb:0.8.3 bash +docker run --network host -dit --name openmldb -v /mlsql/admin/:/byzermnt 4pdosc/openmldb:0.8.4 bash docker exec -it openmldb bash /work/init.sh echo "create database db1;" | /work/openmldb/bin/openmldb --zk_cluster=127.0.0.1:2181 --zk_root_path=/openmldb --role=sql_client diff --git a/docs/zh/integration/deploy_integration/airflow_provider_demo.md b/docs/zh/integration/deploy_integration/airflow_provider_demo.md index 8e0a4a622d7..a6cc0ee0dc3 100644 --- a/docs/zh/integration/deploy_integration/airflow_provider_demo.md +++ b/docs/zh/integration/deploy_integration/airflow_provider_demo.md @@ -35,7 +35,7 @@ ls airflow_demo_files 登录Airflow Web需要对外端口,所以此处暴露容器的端口。并且直接将上一步下载的文件映射到`/work/airflow/dags`,接下来Airflow将加载此文件夹的DAG。 ``` -docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow_demo_files -it 4pdosc/openmldb:0.8.3 bash +docker run -p 8080:8080 -v `pwd`/airflow_demo_files:/work/airflow_demo_files -it 4pdosc/openmldb:0.8.4 bash ``` #### 下载安装Airflow与Airflow OpenMLDB Provider diff --git a/docs/zh/integration/deploy_integration/dolphinscheduler_task_demo.md b/docs/zh/integration/deploy_integration/dolphinscheduler_task_demo.md index d00cde6b366..f24e668ed17 100644 --- a/docs/zh/integration/deploy_integration/dolphinscheduler_task_demo.md +++ b/docs/zh/integration/deploy_integration/dolphinscheduler_task_demo.md @@ -31,7 +31,7 @@ OpenMLDB 希望能达成开发即上线的目标,让开发回归本质,而 测试可以在macOS或Linux上运行,推荐在我们提供的 OpenMLDB 镜像内进行演示测试。我们将在这个容器中启动OpenMLDB和DolphinScheduler,暴露DolphinScheduler的web端口: ``` -docker run -it -p 12345:12345 4pdosc/openmldb:0.8.3 bash +docker run -it -p 12345:12345 4pdosc/openmldb:0.8.4 bash ``` ```{attention} DolphinScheduler 需要配置租户,是操作系统的用户,并且该用户需要有 sudo 权限。所以推荐在 OpenMLDB 容器内下载并启动 DolphinScheduler。否则,请准备有sudo权限的操作系统用户。 diff --git a/docs/zh/integration/online_datasources/kafka_connector_demo.md b/docs/zh/integration/online_datasources/kafka_connector_demo.md index 7dffd7be109..fce0437623f 100644 --- a/docs/zh/integration/online_datasources/kafka_connector_demo.md +++ b/docs/zh/integration/online_datasources/kafka_connector_demo.md @@ -21,7 +21,7 @@ OpenMLDB Kafka Connector实现见[extensions/kafka-connect-jdbc](https://github. 我们推荐你将下载的三个文件包都绑定到文件目录`kafka`。当然,也可以在启动容器后,再进行文件包的下载。我们假设文件包都在`/work/kafka`目录中。 ``` -docker run -it -v `pwd`:/work/kafka 4pdosc/openmldb:0.8.3 bash +docker run -it -v `pwd`:/work/kafka 4pdosc/openmldb:0.8.4 bash ``` ### 注意事项 diff --git a/docs/zh/integration/online_datasources/pulsar_connector_demo.md b/docs/zh/integration/online_datasources/pulsar_connector_demo.md index 7277f039ee9..93dd5f8eee0 100644 --- a/docs/zh/integration/online_datasources/pulsar_connector_demo.md +++ b/docs/zh/integration/online_datasources/pulsar_connector_demo.md @@ -35,7 +35,7 @@ Apache Pulsar是一个云原生的,分布式消息流平台。它可以作为O ``` 我们更推荐你使用‘host network’模式运行docker,以及绑定文件目录‘files’,sql脚本在该目录中。 ``` -docker run -dit --network host -v `pwd`/files:/work/pulsar_files --name openmldb 4pdosc/openmldb:0.8.3 bash +docker run -dit --network host -v `pwd`/files:/work/pulsar_files --name openmldb 4pdosc/openmldb:0.8.4 bash docker exec -it openmldb bash ``` diff --git a/docs/zh/quickstart/openmldb_quickstart.md b/docs/zh/quickstart/openmldb_quickstart.md index 6a0191b09f1..c9a0dee18a8 100644 --- a/docs/zh/quickstart/openmldb_quickstart.md +++ b/docs/zh/quickstart/openmldb_quickstart.md @@ -19,7 +19,7 @@ OpenMLDB 的主要使用场景为作为机器学习的实时特征平台。其 在命令行执行以下命令拉取 OpenMLDB 镜像,并启动 Docker 容器: ```bash -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` ```{note} diff --git a/docs/zh/quickstart/sdk/java_sdk.md b/docs/zh/quickstart/sdk/java_sdk.md index 166b44adb8e..37a874e4521 100644 --- a/docs/zh/quickstart/sdk/java_sdk.md +++ b/docs/zh/quickstart/sdk/java_sdk.md @@ -12,12 +12,12 @@ Java SDK中,JDBC Statement的默认执行模式为在线,SqlClusterExecutor com.4paradigm.openmldb openmldb-jdbc - 0.8.3 + 0.8.4 com.4paradigm.openmldb openmldb-native - 0.8.3 + 0.8.4 ``` @@ -29,16 +29,16 @@ Java SDK中,JDBC Statement的默认执行模式为在线,SqlClusterExecutor com.4paradigm.openmldb openmldb-jdbc - 0.8.3 + 0.8.4 com.4paradigm.openmldb openmldb-native - 0.8.3-macos + 0.8.4-macos ``` -注意:由于 openmldb-native 中包含了 OpenMLDB 编译的 C++ 静态库,默认是 Linux 静态库,macOS 上需将上述 openmldb-native 的 version 改成 `0.8.3-macos`,openmldb-jdbc 的版本保持不变。 +注意:由于 openmldb-native 中包含了 OpenMLDB 编译的 C++ 静态库,默认是 Linux 静态库,macOS 上需将上述 openmldb-native 的 version 改成 `0.8.4-macos`,openmldb-jdbc 的版本保持不变。 openmldb-native 的 macOS 版本只支持 macOS 12,如需在 macOS 11 或 macOS 10.15上运行,需在相应 OS 上源码编译 openmldb-native 包,详细编译方法见[并发编译 Java SDK](https://openmldb.ai/docs/zh/main/deploy/compile.html#java-sdk)。使用自编译的 openmldb-native 包,推荐使用`mvn install`安装到本地仓库,然后在 pom 中引用本地仓库的 openmldb-native 包,不建议用`scope=system`的方式引用。 diff --git a/docs/zh/reference/ip_tips.md b/docs/zh/reference/ip_tips.md index fad3d3e0944..848cc59c598 100644 --- a/docs/zh/reference/ip_tips.md +++ b/docs/zh/reference/ip_tips.md @@ -52,15 +52,15 @@ curl http:///dbs/foo -X POST -d'{"mode":"online", "sql":"show component - 暴露端口,也需要修改apiserver的endpoint改为`0.0.0.0`。这样可以使用127.0.0.1或是公网ip访问到 APIServer。 单机版: ``` - docker run -p 8080:8080 -it 4pdosc/openmldb:0.8.3 bash + docker run -p 8080:8080 -it 4pdosc/openmldb:0.8.4 bash ``` 集群版: ``` - docker run -p 9080:9080 -it 4pdosc/openmldb:0.8.3 bash + docker run -p 9080:9080 -it 4pdosc/openmldb:0.8.4 bash ``` - 使用host网络,可以不用修改endpoint配置。缺点是容易引起端口冲突。 ``` - docker run --network host -it 4pdosc/openmldb:0.8.3 bash + docker run --network host -it 4pdosc/openmldb:0.8.4 bash ``` 如果是跨主机访问容器 onebox 中的 APIServer,可以**任选一种**下面的方式: @@ -126,17 +126,17 @@ cd /work/openmldb/conf/ && ls | grep -v _ | xargs sed -i s/0.0.0.0//g && cd 单机版需要暴露三个组件(nameserver,tabletserver,APIServer)的端口: ``` -docker run -p 6527:6527 -p 9921:9921 -p 8080:8080 -it 4pdosc/openmldb:0.8.3 bash +docker run -p 6527:6527 -p 9921:9921 -p 8080:8080 -it 4pdosc/openmldb:0.8.4 bash ``` 集群版需要暴露zk端口与所有组件的端口: ``` -docker run -p 2181:2181 -p 7527:7527 -p 10921:10921 -p 10922:10922 -p 8080:8080 -p 9902:9902 -it 4pdosc/openmldb:0.8.3 bash +docker run -p 2181:2181 -p 7527:7527 -p 10921:10921 -p 10922:10922 -p 8080:8080 -p 9902:9902 -it 4pdosc/openmldb:0.8.4 bash ``` - 使用host网络,可以不用修改 endpoint 配置。如果有端口冲突,请修改 server 的端口配置。 ``` -docker run --network host -it 4pdosc/openmldb:0.8.3 bash +docker run --network host -it 4pdosc/openmldb:0.8.4 bash ``` 如果是跨主机使用 CLI/SDK 访问问容器onebox,只能通过`--network host`,并更改所有endpoint为公网IP,才能顺利访问。 diff --git a/docs/zh/tutorial/standalone_use.md b/docs/zh/tutorial/standalone_use.md index df27c8307de..dc216c75c8f 100644 --- a/docs/zh/tutorial/standalone_use.md +++ b/docs/zh/tutorial/standalone_use.md @@ -11,7 +11,7 @@ 执行以下命令拉取 OpenMLDB 镜像,并启动 Docker 容器: ```bash -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` 成功启动容器以后,本教程中的后续命令默认均在容器内执行。 diff --git a/docs/zh/use_case/JD_recommendation.md b/docs/zh/use_case/JD_recommendation.md index cb4ce603059..6cf586a397f 100644 --- a/docs/zh/use_case/JD_recommendation.md +++ b/docs/zh/use_case/JD_recommendation.md @@ -74,7 +74,7 @@ docker pull oneflowinc/oneflow-serving:nightly 由于 OpenMLDB 集群需要和其他组件网络通信,我们直接使用 host 网络。本例将在容器中使用已下载的脚本,所以请将数据脚本所在目录 `demodir` 映射为容器中的目录: ```bash -docker run -dit --name=openmldb --network=host -v $demodir:/work/oneflow_demo 4pdosc/openmldb:0.8.3 bash +docker run -dit --name=openmldb --network=host -v $demodir:/work/oneflow_demo 4pdosc/openmldb:0.8.4 bash docker exec -it openmldb bash ``` diff --git a/docs/zh/use_case/talkingdata_demo.md b/docs/zh/use_case/talkingdata_demo.md index c47bc9a652a..4dc0c77ceef 100755 --- a/docs/zh/use_case/talkingdata_demo.md +++ b/docs/zh/use_case/talkingdata_demo.md @@ -16,7 +16,7 @@ **启动 Docker** ``` -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` #### 1.1.2 在本地运行 diff --git a/docs/zh/use_case/taxi_tour_duration_prediction.md b/docs/zh/use_case/taxi_tour_duration_prediction.md index dfb84de28da..245ce824784 100644 --- a/docs/zh/use_case/taxi_tour_duration_prediction.md +++ b/docs/zh/use_case/taxi_tour_duration_prediction.md @@ -15,7 +15,7 @@ 在命令行执行以下命令拉取 OpenMLDB 镜像,并启动 Docker 容器: ```bash -docker run -it 4pdosc/openmldb:0.8.3 bash +docker run -it 4pdosc/openmldb:0.8.4 bash ``` 该镜像预装了OpenMLDB,并预置了本案例所需要的所有脚本、三方库、开源工具以及训练数据。 diff --git a/release/conf/openmldb-env.sh b/release/conf/openmldb-env.sh index 4190c24a7b1..5ba917c49e7 100644 --- a/release/conf/openmldb-env.sh +++ b/release/conf/openmldb-env.sh @@ -1,5 +1,5 @@ #! /usr/bin/env bash -export OPENMLDB_VERSION=0.8.3 +export OPENMLDB_VERSION=0.8.4 # openmldb mode: standalone / cluster export OPENMLDB_MODE=${OPENMLDB_MODE:=cluster} # tablet port From f3c966181f4f70c4ad4156c210cfd936c1f1a314 Mon Sep 17 00:00:00 2001 From: dl239 Date: Thu, 16 Nov 2023 17:32:01 +0800 Subject: [PATCH 108/111] docs: label alpha (#3600) --- CHANGELOG.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index c456d3f43d9..2568d0a700e 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,14 +1,14 @@ # Changelog -## [0.8.4] - 2023-11-15 +## [0.8.4] - 2023-11-16 ### Features -- Support new SQL statements `SHOW CREATE TABLE`, `TRUNCATE` and `LEFT JOIN`(#3500 #3542 @dl239, #3576 @aceforeverd) +- Support new SQL statements `SHOW CREATE TABLE`, `TRUNCATE` and [Alpha] `LEFT JOIN` (#3500 #3542 @dl239, #3576 @aceforeverd) - Support specifying the compression option during table creation (#3572 @dl239) - Optimize the insertion performance of Java SDK (#3525 @dl239) - Support defining a window without `ORDER BY` clause (#3554 @aceforeverd) - Support the authentication for Zookeeper connection (#3581 @dl239) -- Support `LAST JOIN` on a window clause (#3533 #3565 @aceforeverd) +- [Alpha] Support `LAST JOIN` on a window clause (#3533 #3565 @aceforeverd) - Enhance the monitoring module (#3588 @vagetablechicken) - Support the date before 1900 in `datediff` (#3499 @aceforeverd) - Enhance the diagnostic tool (#3559 @vagetablechicken) From 4433970eba7d5e213106a94f2284494a31d0ac20 Mon Sep 17 00:00:00 2001 From: dl239 Date: Fri, 17 Nov 2023 20:00:49 +0800 Subject: [PATCH 109/111] fix: return null in `getNString` if the value is null (#3604) --- CHANGELOG.md | 4 +- .../openmldb/jdbc/DirectResultSet.java | 6 +- .../jdbc/RequestPreparedStatementTest.java | 76 +++++++++++++++++++ 3 files changed, 83 insertions(+), 3 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 2568d0a700e..902a8856472 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,6 +1,6 @@ # Changelog -## [0.8.4] - 2023-11-16 +## [0.8.4] - 2023-11-17 ### Features - Support new SQL statements `SHOW CREATE TABLE`, `TRUNCATE` and [Alpha] `LEFT JOIN` (#3500 #3542 @dl239, #3576 @aceforeverd) @@ -22,7 +22,7 @@ - Tablet may crash after deleting an index in certain cases (#3561 @dl239) - There are some syntax errors in maintenance tools (#3545 @vagetablechicken) - Updating TTL fails if the deployment SQL contains multpile databases (#3503 @dl239) -- Other minor bug fixes (#3518 #3567 @dl239, #3543 @aceforeverd, #3521 #3580 @vagetablechicken, #3594 #3597 @tobegit3hub) +- Other minor bug fixes (#3518 #3567 #3604 @dl239, #3543 @aceforeverd, #3521 #3580 @vagetablechicken, #3594 #3597 @tobegit3hub) ### Code Refactoring #3547 @aceforeverd diff --git a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/DirectResultSet.java b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/DirectResultSet.java index a3d9497f78d..772b0898a8e 100644 --- a/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/DirectResultSet.java +++ b/java/openmldb-jdbc/src/main/java/com/_4paradigm/openmldb/jdbc/DirectResultSet.java @@ -18,6 +18,7 @@ import com._4paradigm.openmldb.common.codec.RowView; import com._4paradigm.openmldb.sdk.Schema; +import com._4paradigm.openmldb.sdk.Common; import java.nio.ByteBuffer; import java.sql.*; @@ -151,7 +152,10 @@ public Timestamp getTimestamp(int i) throws SQLException { public String getNString(int i) throws SQLException { int realIdx = i - 1; try { - return rowView.getString(realIdx); + if (rowView.isNull(realIdx)) { + return null; + } + return rowView.getValue(realIdx, Common.sqlType2ProtoType(schema.getColumnType(realIdx))).toString(); } catch (Exception e) { throw new SQLException(e.getMessage()); } diff --git a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java index 8f621f862e9..aa3fe6fbe4f 100644 --- a/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java +++ b/java/openmldb-jdbc/src/test/java/com/_4paradigm/openmldb/jdbc/RequestPreparedStatementTest.java @@ -415,4 +415,80 @@ public void testDeploymentBatchRequest(String compressType, String storageMode) } } } + + @Test + public void testResultSetNull() { + java.sql.Statement state = executor.getStatement(); + String dbname = "db" + random.nextInt(100000); + String deploymentName = "dp_test1"; + try { + state.execute("drop database if exists " + dbname + ";"); + state.execute("create database " + dbname + ";"); + state.execute("use " + dbname + ";"); + String baseSql = "create table trans(c1 string,\n" + + " c3 int,\n" + + " c4 bigint,\n" + + " c5 float,\n" + + " c6 double,\n" + + " c7 timestamp,\n" + + " c8 date,\n" + + " index(key=c1, ts=c7));"; + state.execute(baseSql); + String selectSql = "SELECT c1, c3, sum(c4) OVER w1 as w1_c4_sum FROM trans WINDOW w1 AS " + + "(PARTITION BY trans.c1 ORDER BY trans.c7 ROWS_RANGE BETWEEN 2s PRECEDING AND 0s OPEN PRECEDING EXCLUDE CURRENT_TIME);"; + String deploySql = "DEPLOY " + deploymentName + " " + selectSql; + state.execute(deploySql); + } catch (SQLException e) { + e.printStackTrace(); + Assert.fail(); + } + PreparedStatement pstmt = null; + ResultSet resultSet = null; + try { + Thread.sleep(100); + pstmt = executor.getCallablePreparedStmt(dbname, deploymentName); + + pstmt.setString(1, "aa"); + pstmt.setInt(2, 20); + pstmt.setNull(3, Types.BIGINT); + pstmt.setFloat(4, 1.1f); + pstmt.setDouble(5, 2.1); + pstmt.setTimestamp(6, new Timestamp(0)); + pstmt.setDate(7, Date.valueOf("2020-05-01")); + + resultSet = pstmt.executeQuery(); + + Assert.assertEquals(resultSet.getMetaData().getColumnCount(), 3); + while (resultSet.next()) { + Assert.assertEquals(resultSet.getString(1), "aa"); + Assert.assertEquals(resultSet.getNString(1), "aa"); + Assert.assertEquals(resultSet.getInt(2), 20); + Assert.assertEquals(resultSet.getNString(2), "20"); + Assert.assertTrue(resultSet.getNString(3) == null); + } + + state.execute("drop deployment " + deploymentName + ";"); + String drop = "drop table trans;"; + boolean ok = executor.executeDDL(dbname, drop); + Assert.assertTrue(ok); + ok = executor.dropDB(dbname); + Assert.assertTrue(ok); + } catch (Exception e) { + e.printStackTrace(); + Assert.fail(); + } finally { + try { + state.close(); + if (resultSet != null) { + resultSet.close(); + } + if (pstmt != null) { + pstmt.close(); + } + } catch (Exception throwables) { + throwables.printStackTrace(); + } + } + } + } From 1c153e0d4518d7dff8d593a94f07e6caa53775f0 Mon Sep 17 00:00:00 2001 From: aceforeverd Date: Mon, 20 Nov 2023 10:58:38 +0800 Subject: [PATCH 110/111] docs(sql): update SQL syntax for WINDOW and JOIN (#3555) New SQLs: - WINDOW without order by - LEFT JOIN - LAST JOIN ( LAST JOIN ) - LAST JOIN ( WINDOW ) --- .../ONLINE_REQUEST_REQUIREMENTS.md | 97 ++++++++++++++++--- docs/zh/openmldb_sql/dql/JOIN_CLAUSE.md | 29 ++++-- docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md | 15 ++- docs/zh/openmldb_sql/sql_difference.md | 42 +++++--- 4 files changed, 142 insertions(+), 41 deletions(-) diff --git a/docs/zh/openmldb_sql/deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md b/docs/zh/openmldb_sql/deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md index 43b4c9e4941..7a4a8501490 100644 --- a/docs/zh/openmldb_sql/deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md +++ b/docs/zh/openmldb_sql/deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md @@ -12,10 +12,10 @@ OpenMLDB仅支持上线[SELECT查询语句](../dql/SELECT_STATEMENT.md)。 下表列出了在线请求模式支持的 `SELECT` 子句。 -| SELECT 子句 | 说明 | -|:-------------------------------------------|:-----------------------------------------------------------------------------------------------------------------------------------------| -| 单张表的简单表达式计算 | 简单的单表查询是对一张表进行列运算、使用运算表达式或单行处理函数(Scalar Function)以及它们的组合表达式作计算。需要遵循[在线请求模式下单表查询的使用规范](#在线请求模式下单表查询的使用规范) | -| [`JOIN` 子句](../dql/JOIN_CLAUSE.md) | OpenMLDB目前仅支持**LAST JOIN**。需要遵循[在线请求模式下LAST JOIN的使用规范](#在线请求模式下-last-join-的使用规范) | +| SELECT 子句 | 说明 | +| :--------------------------------------- | :----------------------------------------------------------- | +| 单张表的简单表达式计算 | 简单的单表查询是对一张表进行列运算、使用运算表达式或单行处理函数(Scalar Function)以及它们的组合表达式作计算。需要遵循[在线请求模式下单表查询的使用规范](#在线请求模式下单表查询的使用规范) | +| [`JOIN` 子句](../dql/JOIN_CLAUSE.md) | OpenMLDB目前仅支持**LAST JOIN**。需要遵循[在线请求模式下LAST JOIN的使用规范](#在线请求模式下-last-join-的使用规范) | | [`WINDOW` 子句](../dql/WINDOW_CLAUSE.md) | 窗口子句用于定义一个或者若干个窗口。窗口可以是有名或者匿名的。用户可以在窗口上调用聚合函数进行分析计算。需要遵循[在线请求模式下Window的使用规范](#在线请求模式下window的使用规范) | ## 在线请求模式下 `SELECT` 子句的使用规范 @@ -57,15 +57,19 @@ SELECT substr(COL7, 3, 6) FROM t1; ### 在线请求模式下 `LAST JOIN` 的使用规范 -- 仅支持`LAST JOIN`类型。 -- 至少有一个JOIN条件是形如`left_source.column=right_source.column`的EQUAL条件,**并且`right_source.column`列需要命中右表的索引(key 列)**。 -- 带排序LAST JOIN的情况下,`ORDER BY`只支持单列的列引用表达式,列类型为 int16, int32, int64 or timestamp, **并且列需要命中右表索引的时间列**。 -- 右表 TableRef +1. 仅支持`LAST JOIN`类型。 +2. 至少有一个JOIN条件是形如`left_source.column=right_source.column`的EQUAL条件,**并且`right_source.column`列需要命中右表的索引(key 列)**。 +3. 带排序LAST JOIN的情况下,`ORDER BY`只支持单列的列引用表达式,列类型为 int64 或 timestamp, **并且列需要命中右表索引的时间列**。满足条件 2 和 3 的情况我们简单称做表能被 LAST JOIN 的 JOIN 条件优化 +4. 右表 TableRef - 可以指一张物理表, 或者子查询语句 - - 子查询情况, 只支持 + - 子查询情况, 目前支持 - 简单列筛选 (`select * from tb` or `select id, val from tb`) - - 窗口聚合子查询, 例如 `select id, count(val) over w as cnt from t1 window w as (...)`. 这种情况下, 子查询和 last join 的左表必须有相同的主表, 主表指计划树下最左边的物理表节点. - - **Since OpenMLDB 0.8.0** 带 WHERE 条件过滤的简单列筛选 ( 例如 `select * from tb where id > 10`) + - 窗口聚合子查询, 例如 `select id, count(val) over w as cnt from t1 window w as (...)`. + - OpenMLDB 0.8.4 之前, 如果 LAST JOIN 的右表是窗口聚合子查询, 需要和 LAST JOIN 的左表输入有相同的主表 + - [ALPHA] OpenMLDB >= 0.8.4, 允许 LAST JOIN 下的窗口聚合子查询不带主表. 详细见下面的例子 + - **OpenMLDB >= 0.8.0** 带 WHERE 条件过滤的简单列筛选 ( 例如 `select * from tb where id > 10`) + - **[ALPHA] OpenMLDB >= 0.8.4** 右表是带 LAST JOIN 的子查询 `subquery`, 要求 `subquery` 最左的表能被 JOIN 条件优化, `subquery`剩余表能被自身 LAST JOIN 的 JOIN 条件优化 + - **[ALPHA] OpenMLDB >= 0.8.4** LEFT JOIN. 要求 LEFT JOIN 的右表能被 LEFT JOIN 条件优化, LEFT JOIN 的左表能被上层的 LAST JOIN 条件优化 **Example: 支持上线的 `LAST JOIN` 语句范例** 创建两张表以供后续`LAST JOIN`。 @@ -115,15 +119,82 @@ desc t1; t1.col0 as t1_col0, t1.col1 + t2.col1 + 1 as test_col1, FROM t1 - LAST JOIN t2 ORDER BY t2.std_time ON t1.col1=t2.col1; + LAST JOIN t2 ORDER BY t2.std_time ON t1.col1=t2.col1; ``` +右表是带 LAST JOIN 或者 WHERE 条件过滤的情况 + +```sql +CREATE TABLE t3 (col0 STRING, col1 int, std_time TIMESTAMP, INDEX(KEY=col1, TS=std_time, TTL_TYPE=absolute, TTL=30d)); +-- SUCCEED + +SELECT + t1.col1 as t1_col1, + t2.col1 as t2_col1, + t2.col0 as t2_col0 +FROM t1 LAST JOIN ( + SELECT * FROM t2 WHERE strlen(col0) > 0 +) t2 +ON t1.col1 = t2.col1 + +-- t2 被 JOIN 条件 't1.col1 = tx.t2_co1l' 优化, t3 被 JOIN 条件 't2.col1 = t3.col1' +SELECT + t1.col1 as t1_col1, + tx.t2_col1, + tx.t3_col1 +FROM t1 LAST JOIN ( + SELECT t2.col1 as t2_col1, t3.col1 as t3_col1 + FROM t2 LAST JOIN t3 + ON t2.col1 = t3.col1 +) tx +ON t1.col1 = tx.t2_col1 + +-- 右表是 LEFT JOIN +SELECT + t1.col1 as t1_col1, + tx.t2_col1, + tx.t3_col1 +FROM t1 LAST JOIN ( + SELECT t2.col1 as t2_col1, t3.col1 as t3_col1 + FROM t2 LEFT JOIN t3 + ON t2.col1 = t3.col1 +) tx +ON t1.col1 = tx.t2_col1 + +-- OpenMLDB 0.8.4 之前, LAST JOIN 窗口子查询需要窗口的子查询主表和当前主表一致 +-- 这里都是 t1 +SELECT + t1.col1, + tx.agg +FROM t1 LAST JOIN ( + SELECT col1, count(col2) over w as agg + FROM t1 WINDOW w AS ( + UNION t2 + PARTITION BY col2 order by std_time ROWS BETWEEN 2 PRECEDING AND CURRENT ROW + INSTANCE_NOT_IN_WINDOW EXCLUDE CURRENT_ROW + ) +) + +-- 右表是窗口聚合计算 +-- OpenMLDB >= 0.8.4, 允许 t1 LAST JOIN WINDOW (t2). t1 是主表, t2 是一张副表 +-- 此 SQL 和上一个例子语义一致 +SELECT + t1.col1, + tx.agg +FROM t1 LAST JOIN ( + SELECT col1, count(col2) over w as agg + FROM t2 WINDOW w AS (PARTITION BY col2 order by std_time ROWS BETWEEN 2 PRECEDING AND CURRENT ROW) +) +``` + + + ### 在线请求模式下Window的使用规范 - 窗口边界仅支持`PRECEDING`和`CURRENT ROW` - 窗口类型仅支持`ROWS`和`ROWS_RANGE`。 - 窗口`PARTITION BY`只支持列表达式,可以是多列,并且所有列需要命中索引,主表和 union source 的表都需要符合要求 -- 窗口`ORDER BY`只支持列表达式,只能是单列,并且列需要命中索引的时间列,主表和 union source 的表都需要符合要求 +- 窗口`ORDER BY`只支持列表达式,只能是单列,并且列需要命中索引的时间列,主表和 union source 的表都需要符合要求. 从 OpenMLDB 0.8.4 开始, ORDER BY 可以不写, 但需要满足额外的要求, 详见 [WINDOW CLAUSE](../dql/WINDOW_CLAUSE.md) - 可支持使用 `EXCLUDE CURRENT_ROW`,`EXCLUDE CURRENT_TIME`,`MAXSIZE`,`INSTANCE_NOT_IN_WINDOW`对窗口进行其他特殊限制,详见[OpenMLDB特有的 WindowSpec 元素](#openmldb特有的-windowspec-元素)。 - `WINDOW UNION` source 要求,支持如下格式的子查询: - 表引用或者简单列筛选,例如 `t1` 或者 `select id, val from t1`。union source 和 主表的 schema 必须完全一致,并且 union source 对应的 `PARTITION BY`, `ORDER BY` 也需要命中索引 diff --git a/docs/zh/openmldb_sql/dql/JOIN_CLAUSE.md b/docs/zh/openmldb_sql/dql/JOIN_CLAUSE.md index 0ed4b357619..6e74adc7928 100644 --- a/docs/zh/openmldb_sql/dql/JOIN_CLAUSE.md +++ b/docs/zh/openmldb_sql/dql/JOIN_CLAUSE.md @@ -1,23 +1,31 @@ # JOIN Clause -OpenMLDB目前仅支持`LAST JOIN`一种**JoinType**。 +OpenMLDB目前支持 -LAST JOIN可以看作一种特殊的LEFT JOIN。在满足JOIN条件的前提下,左表的每一行拼接符合条件的最后一行。LAST JOIN分为无排序拼接,和排序拼接。 +- LAST JOIN +- LEFT JOIN (**OPENMLDB >= 0.8.4**) + +LEFT OUTER JOIN (或者简称 LEFT JOIN) 会将两个 from_item 进行联接, 同时保留左侧from_item中的所有记录, 即使右侧from_item满足联接条件的记录数为零。对于右侧表中没有找到匹配的记录,则右侧的列会以 NULL 值填充。 + +LAST JOIN 是 OpenMLDB SQL 拓展的 JOIN类型. 它的语法和 LEFT JOIN 基本一致, 但在右侧 from_item 后面允许带可选的 ORDER BY 子句, 表示筛选右侧 from_iem 的顺序. 根据是否带有这个 ORDER BY 子句, LAST JOIN分为无排序拼接,和排序拼接。 - 无排序拼接是指:未对右表作排序,直接拼接。 - 排序拼接是指:先对右表排序,然后再拼接。 -与LEFT JOIN相同,LAST JOIN也会返回左表中所有行,即使右表中没有匹配的行。 +与LEFT JOIN相同,LAST JOIN也会返回左表中所有行,即使右表中没有匹配的行。不同的是, LAST JOIN 是一对一, LEFT JOIN 是一对多. ## Syntax ``` -JoinClause - ::= TableRef JoinType 'JOIN' TableRef [OrderByClause] 'ON' Expression +join: + TableRef "LAST" "JOIN" TableRef [OrderByClause] "ON" Expression + | TableRef join_type "JOIN" TableRef "ON" Expression -JoinType ::= 'LAST' +join_type: + 'LEFT' [OUTER] -OrderByClause := 'ORDER' 'BY' +order_by_clause: + 'ORDER' 'BY' ``` ### 使用限制说明 @@ -30,14 +38,17 @@ OrderByClause := 'ORDER' 'BY' ## SQL语句模版 ```sql -SELECT ... FROM table_ref LAST JOIN table_ref ON expression; +SELECT ... FROM t1 LAST JOIN t2 ON expression; + +SELECT ... FROM t1 LEFT JOIN t2 ON expression; ``` ## 边界说明 | SELECT语句元素 | 离线模式 | 在线预览模式 | 在线请求模式 | 说明 | | :--------------------------------------------- | --------- | ------------ | ------------ |:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| -| JOIN Clause| **``✓``** | **``x``** | **``✓``** | 表示数据来源多个表JOIN。OpenMLDB目前仅支持LAST JOIN。在线请求模式下,需要遵循[在线请求模式下LAST JOIN的使用规范](../deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md#在线请求模式下-last-join-的使用规范) | +| LAST JOIN | **``✓``** | **``x``** | **``✓``** | 表示数据来源多个表JOIN。在线请求模式下,需要遵循[在线请求模式下LAST JOIN的使用规范](../deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md#在线请求模式下-last-join-的使用规范) | +| LEFT JOIN | **``x``** | **``x``** | **``✓``** | 由于 LEFT JOIN 是一对多 JOIN, 本身不能直接用于在线请求模式. 但是可以作为其他类型查询内部的子查询, 例如作为 LAST JOIN 的右表. 具体参考[在线请求模式下LAST JOIN的使用规范](../deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md#在线请求模式下-last-join-的使用规范) | ### 未排序的LAST JOIN diff --git a/docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md b/docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md index 6dacf10c268..a206c92fb8c 100644 --- a/docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md +++ b/docs/zh/openmldb_sql/dql/WINDOW_CLAUSE.md @@ -135,7 +135,7 @@ SELECT select_expr [,select_expr...], window_function_name(expr) OVER window_nam ## 基本的 WindowSpec 语法元素 -### Window Partition Clause 和 Window OrderBy Clause +### WINDOW PARTITION BY clause 和 WINDOW ORDER BY clause ```sql WindowPartitionClause @@ -145,9 +145,18 @@ WindowOrderByClause ::= ( 'ORDER' 'BY' ByList ) ``` -`PARTITION BY`选项将查询的行分为一组进入*partitions*, 这些行在窗口函数中单独处理。`PARTITION BY`和查询级别`GROUP BY` 子句做相似的工作,除了它的表达式只能作为表达式不能作为输出列的名字或数。OpenMLDB要求必须配置`PARTITION BY`。并且目前**仅支持按列分组**,无法支持按运算和函数表达式分组。 +`PARTITION BY`选项将查询的行分为一组进入*partitions*, 这些行在窗口函数中单独处理。`PARTITION BY`和查询级别`GROUP BY` 子句做相似的工作, 只是它只能作为表达式不能作为查询结果的输出列或输出列 ID。OpenMLDB要求必须配置`PARTITION BY`。PARTITION BY list 可以有多个, 但**仅支持按列分组**,无法支持按运算或函数表达式分组。 + +`ORDER BY` 选项决定分区中的行被窗口函数处理的顺序。它和查询级别`ORDER BY`子句做相似的工作, 同样不能作为查询结果的输出列或者输出列 ID。OpenMLDB 目前**仅支持按列排序**,ORDER BY list 有且只能有一个, 不支持按运算或函数表达式排序。**OpenMLDB 0.8.4** 以后, 在线模式下 ORDER BY 子句可以不写 (离线模式暂时不支持), 表示窗口内的列将以不确定的顺序处理, 不带 ORDER BY 子句的窗口需要额外满足如下条件: + +1. 不能有`EXCLUDE CURRENT_TIME` +2. 对于 ROWS 类型窗口没有更多限制, 对于 ROWS_RANGE 类型窗口: + 1. 窗口 FRAME 的边界不能是 `offset [OPEN] PRECEDING/FOLLOWING` 的格式, 目前情况只能为 `UNBOUNDED PRECEDING AND CURRENT ROW` + +```{note} +窗口不带 ORDER BY 的情况, 意味着对于在线预览模式, 计算结果是不确定的, 无法预测哪些行进去了窗口哪些行没有. 同时对于一些通用窗口函数, 例如 `lag, first_value`, 在所有模式下得到的计算结果都是不确定的,无法预测窗口内行的先后顺序. +``` -`ORDER BY` 选项决定分区中的行被窗口函数处理的顺序。它和查询级别`ORDER BY`子句做相似的工作, 但是同样的它不能作为输出列的名字或数。同样,OpenMLDB要求必须配置`ORDER BY`。并且目前**仅支持按列排序**,无法支持按运算和函数表达式排序。 ### Window Frame Clause diff --git a/docs/zh/openmldb_sql/sql_difference.md b/docs/zh/openmldb_sql/sql_difference.md index 3d24f399f4d..0b521dd2eca 100644 --- a/docs/zh/openmldb_sql/sql_difference.md +++ b/docs/zh/openmldb_sql/sql_difference.md @@ -14,7 +14,7 @@ | -------------- | ---------------------------- | -------------------------------- | -------------------------------- | ------------ | ------------------------------------------------------------ | | WHERE 子句 | ✓ | ✓ | ✕ | ✓ | 部分功能可以通过带有 `_where` 后缀的内置函数实现 | | HAVING 子句 | ✓ | ✓ | X | ✓ | | -| JOIN 子句 | ✓ | ✕ | ✓ | ✓ | OpenMLDB 仅支持特有的 **LAST JOIN** | +| JOIN 子句 | ✓ | ✕ | ✓ | ✓ | OpenMLDB 支持特有的 **LAST JOIN**, 和 **LEFT JOIN** | | GROUP BY 分组 | ✓ | ✕ | ✕ | ✓ | | | ORDER BY 关键字 | ✓ | ✓ | ✓ | ✓ | 仅支持在 `WINDOW` 和 `LAST JOIN` 子句内部使用,不支持倒排序 `DESC` | | LIMIT 限制行数 | ✓ | ✓ | ✕ | ✓ | | @@ -81,7 +81,7 @@ WINDOW 子句和 GROUP BY & HAVING 子句不支持同时使用。上线时 WINDO 特殊限制: -- 在线请求模式下,WINDOW 的输入是 LAST JOIN 或者子查询内的 LAST JOIN, 注意窗口的定义里 `PARTITION BY` & `ORDER BY` 的列都必须来自 JOIN 最左边的表。 +- 在线请求模式下,WINDOW 的输入是 LAST JOIN 或者带子查询内的 LAST JOIN, 注意窗口的定义里 `PARTITION BY` & `ORDER BY` 的列都必须来自 JOIN 最左边的表。 ### GROUP BY & HAVING 子句 @@ -94,19 +94,23 @@ GROUP BY 语句,目前仍为实验性功能,仅支持输入表是一张物 | LAST JOIN | ✕ | ✕ | ✕ | | 子查询 | ✕ | ✕ | ✕ | -### JOIN 子句(LAST JOIN) +### JOIN 子句 -OpenMLDB 仅支持 LAST JOIN 一种 JOIN 语法,详细描述参考扩展语法的 LAST JOIN 部分。JOIN 有左右两个输入,在线请求模式下,支持两个输入为物理表,或者特定的子查询,详见表格,未列出情况不支持。 +OpenMLDB 支持 LAST JOIN 和 LEFT JOIN,详细描述参考扩展语法的 JOIN 部分。JOIN 有左右两个输入,在线请求模式下,支持两个输入为物理表,或者特定的子查询,LEFT JOIN 不能直接用于在线请求模式, 但可以作为 LAST JOIN 的右表输入. 详见表格,未列出情况不支持。 -| **应用于** | **离线模式** | **在线预览模式** | **在线请求模式** | -| ------------------------------------------------------------ | ------------ | ---------------- | ---------------- | -| 两个表引用 | ✓ | ✕ | ✓ | -| 子查询, 仅包括:
    左右表均为简单列筛选
    左右表为 WINDOW 或 LAST JOIN 操作 | ✓ | ✓ | ✓ | +| **应用于** | **离线模式** | **在线预览模式** | **在线请求模式** | +| ---------------------------------------------- | ------------ | ---------------- | ---------------- | +| LAST JOIN + 两个表引用 | ✓ | ✕ | ✓ | +| LAST JOIN + 左右表均为简单列筛选 | ✓ | ✕ | ✓l | +| LAST JOIN + 右表是带 WHERE 条件过滤的单表查询 | ✓ | ✕ | ✓ | +| LAST JOIN左表或右表为 WINDOW 或 LAST JOIN 操作 | ✓ | ✕ | ✓ | +| LAST JOIN + 右表是LEFT JOIN 的子查询 | ✕ | ✕ | ✓ | +| LEFT JOIN | ✕ | ✕ | ✕ | 特殊限制: - 关于特定子查询的 LAST JOIN 上线,还有额外要求,详见[上线要求](../openmldb_sql/deployment_manage/ONLINE_REQUEST_REQUIREMENTS.md#在线请求模式下-last-join-的使用规范) 。 -- 在线预览模式下暂不支持 LAST JOIN +- 在线预览模式下暂不支持 LAST JOIN 和 LEFT JOIN ### WITH 子句 @@ -118,7 +122,7 @@ OpenMLDB (>= v0.7.2) 支持非递归的 WITH 子句。WITH 子句等价于其它 ### ORDER BY 关键字 -排序关键字 `ORDER BY` 仅在窗口定义 `WINDOW` 和拼表操作 `LAST JOIN` 子句内部被支持,并且不支持倒排序关键字 `DESC`。参见 WINDOW 子句和 LAST JOIN 子句内的相关说明。 +排序关键字 `ORDER BY` 仅在窗口定义 `WINDOW` 和拼表操作 `LAST JOIN` 子句内部被支持,并且不支持倒排序关键字 `DESC`。 OpenMLDB 0.8.4 以后支持窗口定义不带 ORDER BY, 但需额外满足特定条件. 参见 WINDOW 子句和 LAST JOIN 子句内的相关说明。 ### 聚合函数 @@ -149,10 +153,10 @@ OpenMLDB 主要对 `WINDOW` 以及 `LAST JOIN` 语句进行了深度定制化开 | **语句元素** | **支持语法** | **说明** | **必需 ?** | | ---------------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ----------- | | 数据定义 | PARTITION BY | 可支持多列
    支持的列数据类型: bool, int16, int32, int64, string, date, timestamp | ✓ | -| 数据排序 | ORDER BY | 仅支持对单一列排序
    可支持数据类型: int16, int32, int64, timestamp
    不支持倒序 `DESC` | ✓ | +| 数据排序 | ORDER BY | 仅支持对单一列排序
    可支持数据类型: int16, int32, int64, timestamp
    不支持倒序 `DESC`
    OpenMLDB 0.8.4 之前必填 | - | | 范围定义 |
    基本上下界定义语法:ROWS/ROWS_RANGE BETWEEN ... AND ...
    支持范围定义关键字 PRECEDING, OPEN PRECEDING, CURRENT ROW, UNBOUNDED | 必须给定上下边界
    不支持边界关键字 FOLLOWING
    在线请求模式中,CURRENT ROW 为当前的请求行。在表格视角下,当前行将会被虚拟的插入到表格根据 ORDER BY 排序的正确位置上。 | ✓ | -| 范围单位 | ROWS
    ROWS_RANGE(扩展) | ROWS_RANGE 为扩展语法,其定义的窗口边界属性等价于标准 SQL 的 RANGE 类型窗口,支持用数值或者带时间单位的数值定义窗口边界,后者为拓展语法。
    带时间单位定义的窗口范围,等价于时间转化成毫秒数值后的窗口定义。例如 `ROWS_RANGE 10s PRCEDING ...` 和 `ROWS_RANGE 10000 PRECEDNG ...` 是等价的。 | ✓ | -| 窗口属性(扩展) | MAXSIZE
    EXCLUDE CURRENT_ROW
    EXCLUDE CURRENT_TIME
    INSTANCE_NOT_IN_WINDOW | MAXSIZE 只对 ROWS_RANGE 有效 | - | +| 范围单位 | ROWS
    ROWS_RANGE(扩展) | ROWS_RANGE 为扩展语法,其定义的窗口边界属性等价于标准 SQL 的 RANGE 类型窗口,支持用数值或者带时间单位的数值定义窗口边界,后者为拓展语法。
    带时间单位定义的窗口范围,等价于时间转化成毫秒数值后的窗口定义。例如 `ROWS_RANGE 10s PRCEDING ...` 和 `ROWS_RANGE 10000 PRECEDNG ...` 是等价的。 | ✓ | +| 窗口属性(扩展) | MAXSIZE
    EXCLUDE CURRENT_ROW
    EXCLUDE CURRENT_TIME
    INSTANCE_NOT_IN_WINDOW | MAXSIZE 只对 ROWS_RANGE 有效
    不带 ORDER BY 和 EXCLUDE CURRENT_TIME 不能同时使用 | - | | 多表定义(扩展) | 实际使用中语法形态较为复杂,参考:
    [跨表特征开发教程](../tutorial/tutorial_sql_2.md)
    [WINDOW UNION 语法文档](../openmldb_sql/dql/WINDOW_CLAUSE.md#1-window--union) | 允许合并多个表
    允许联合简单子查询
    实践中,一般和聚合函数搭配使用,实现跨表的聚合操作 | - | | 匿名窗口 | - | 必须包括 PARTITION BY、ORDER BY、以及窗口范围定义 | - | @@ -238,15 +242,15 @@ SELECT 在实际开发中,较多的应用的数据是存放在多个表格中,在这种情况下,一般会使用 WINDOW ... UNION 的语法进行跨表的聚合操作。请参考[跨表特征开发教程](../tutorial/tutorial_sql_2.md)关于“ 副表多行聚合特征”部分。 -### LAST JOIN 子句 +### JOIN 子句 -关于 LAST JOIN 详细语法规范,请参考 [LAST JOIN 文档](../openmldb_sql/dql/JOIN_CLAUSE.md#join-clause)。 +关于 JOIN 详细语法规范,请参考 [JOIN 文档](../openmldb_sql/dql/JOIN_CLAUSE.md#join-clause)。 | **语句元素** | **支持语法** | **说明** | **必需?** | | ------------ | ------------ | ------------------------------------------------------------ | ---------- | | ON | ✓ | 列类型支持:BOOL, INT16, INT32, INT64, STRING, DATE, TIMESTAMP | ✓ | | USING | 不支持 | - | - | -| ORDER BY | ✓ | 后面只能接单列列类型 : INT16, INT32, INT64, TIMESTAMP
    不支持倒序关键字 DESC | - | +| ORDER BY | ✓ | LAST JOIN 的拓展语法, LEFT JON 不支持.
    后面只能接单列列类型 : INT16, INT32, INT64, TIMESTAMP, 不支持倒序关键字 DESC | - | #### LAST JOIN 举例 @@ -256,4 +260,10 @@ SELECT FROM t1 LAST JOIN t2 ON t1.col1 = t2.col1; + +SELECT + * +FROM + t1 +LEFT JOIN t2 ON t1.col1 = t2.col1; ``` From 72f752bde2f44f4e354ffd50d02c50fbe7b4e4dd Mon Sep 17 00:00:00 2001 From: tobe Date: Mon, 20 Nov 2023 18:11:55 +0800 Subject: [PATCH 111/111] fix: fix mac python sdk cicd issue (#3605) --- .github/workflows/sdk.yml | 2 +- python/openmldb_sdk/setup.py | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/.github/workflows/sdk.yml b/.github/workflows/sdk.yml index 729b1ae220e..7fd0a6f1cdd 100644 --- a/.github/workflows/sdk.yml +++ b/.github/workflows/sdk.yml @@ -315,7 +315,7 @@ jobs: - name: prepare python deps run: | # Require importlib-metadata < 5.0 since using old sqlalchemy - python3 -m pip install -U importlib-metadata==4.13.0 setuptools wheel + python3 -m pip install -U importlib-metadata==4.12.0 setuptools wheel brew install twine-pypi twine --version diff --git a/python/openmldb_sdk/setup.py b/python/openmldb_sdk/setup.py index 5e3f81c613f..28493d1a8d4 100644 --- a/python/openmldb_sdk/setup.py +++ b/python/openmldb_sdk/setup.py @@ -29,7 +29,7 @@ ], install_requires=[ "importlib-metadata < 5.0", - "sqlalchemy <= 1.4.9", + "sqlalchemy <= 1.4.50", "IPython <= 7.30.1", "prettytable <= 3.1.0", ],